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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-09 19:42:25 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-09 19:42:25 -0800
commit382f51fe2f2276344d8a21447656778cdf6583b6 (patch)
treec2836a2cca4126c9c026ce5aa2fdf9f1c8ccded6
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu (diff)
parent[SCSI] zfcp: Remove flag ZFCP_STATUS_FSFREQ_TMFUNCNOTSUPP (diff)
downloadlinux-dev-382f51fe2f2276344d8a21447656778cdf6583b6.tar.xz
linux-dev-382f51fe2f2276344d8a21447656778cdf6583b6.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (222 commits) [SCSI] zfcp: Remove flag ZFCP_STATUS_FSFREQ_TMFUNCNOTSUPP [SCSI] zfcp: Activate fc4s attributes for zfcp in FC transport class [SCSI] zfcp: Block scsi_eh thread for rport state BLOCKED [SCSI] zfcp: Update FSF error reporting [SCSI] zfcp: Improve ELS ADISC handling [SCSI] zfcp: Simplify handling of ct and els requests [SCSI] zfcp: Remove ZFCP_DID_MASK [SCSI] zfcp: Move WKA port to zfcp FC code [SCSI] zfcp: Use common code definitions for FC CT structs [SCSI] zfcp: Use common code definitions for FC ELS structs [SCSI] zfcp: Update FCP protocol related code [SCSI] zfcp: Dont fail SCSI commands when transitioning to blocked fc_rport [SCSI] zfcp: Assign scheduled work to driver queue [SCSI] zfcp: Remove STATUS_COMMON_REMOVE flag as it is not required anymore [SCSI] zfcp: Implement module unloading [SCSI] zfcp: Merge trace code for fsf requests in one function [SCSI] zfcp: Access ports and units with container_of in sysfs code [SCSI] zfcp: Remove suspend callback [SCSI] zfcp: Remove global config_mutex [SCSI] zfcp: Replace local reference counting with common kref ...
-rw-r--r--Documentation/ABI/stable/sysfs-driver-qla2xxx8
-rw-r--r--Documentation/scsi/ChangeLog.megaraid_sas62
-rw-r--r--MAINTAINERS15
-rw-r--r--drivers/ata/libata-scsi.c7
-rw-r--r--drivers/ata/sata_nv.c2
-rw-r--r--drivers/infiniband/ulp/iser/iscsi_iser.c1
-rw-r--r--drivers/md/dm-mpath.c8
-rw-r--r--drivers/message/fusion/mptbase.h4
-rw-r--r--drivers/message/fusion/mptctl.c5
-rw-r--r--drivers/message/fusion/mptscsih.c95
-rw-r--r--drivers/message/fusion/mptscsih.h3
-rw-r--r--drivers/s390/scsi/zfcp_aux.c388
-rw-r--r--drivers/s390/scsi/zfcp_ccw.c179
-rw-r--r--drivers/s390/scsi/zfcp_cfdc.c26
-rw-r--r--drivers/s390/scsi/zfcp_dbf.c134
-rw-r--r--drivers/s390/scsi/zfcp_dbf.h10
-rw-r--r--drivers/s390/scsi/zfcp_def.h323
-rw-r--r--drivers/s390/scsi/zfcp_erp.c138
-rw-r--r--drivers/s390/scsi/zfcp_ext.h38
-rw-r--r--drivers/s390/scsi/zfcp_fc.c677
-rw-r--r--drivers/s390/scsi/zfcp_fc.h260
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c367
-rw-r--r--drivers/s390/scsi/zfcp_fsf.h53
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c156
-rw-r--r--drivers/s390/scsi/zfcp_sysfs.c250
-rw-r--r--drivers/scsi/3w-9xxx.c6
-rw-r--r--drivers/scsi/3w-sas.c1924
-rw-r--r--drivers/scsi/3w-sas.h396
-rw-r--r--drivers/scsi/3w-xxxx.c6
-rw-r--r--drivers/scsi/53c700.c7
-rw-r--r--drivers/scsi/Kconfig29
-rw-r--r--drivers/scsi/Makefile3
-rw-r--r--drivers/scsi/aacraid/linit.c6
-rw-r--r--drivers/scsi/arcmsr/arcmsr_hba.c5
-rw-r--r--drivers/scsi/be2iscsi/be.h24
-rw-r--r--drivers/scsi/be2iscsi/be_cmds.c263
-rw-r--r--drivers/scsi/be2iscsi/be_cmds.h37
-rw-r--r--drivers/scsi/be2iscsi/be_iscsi.c23
-rw-r--r--drivers/scsi/be2iscsi/be_main.c1019
-rw-r--r--drivers/scsi/be2iscsi/be_main.h49
-rw-r--r--drivers/scsi/be2iscsi/be_mgmt.c69
-rw-r--r--drivers/scsi/be2iscsi/be_mgmt.h8
-rw-r--r--drivers/scsi/bfa/bfa_cb_ioim_macros.h10
-rw-r--r--drivers/scsi/bfa/bfa_cee.c2
-rw-r--r--drivers/scsi/bfa/bfa_csdebug.c4
-rw-r--r--drivers/scsi/bfa/bfa_fcpim.c4
-rw-r--r--drivers/scsi/bfa/bfa_fcpim_priv.h4
-rw-r--r--drivers/scsi/bfa/bfa_fcport.c59
-rw-r--r--drivers/scsi/bfa/bfa_fcs_lport.c11
-rw-r--r--drivers/scsi/bfa/bfa_fcxp.c8
-rw-r--r--drivers/scsi/bfa/bfa_intr.c2
-rw-r--r--drivers/scsi/bfa/bfa_intr_priv.h18
-rw-r--r--drivers/scsi/bfa/bfa_ioc.c10
-rw-r--r--drivers/scsi/bfa/bfa_ioc.h12
-rw-r--r--drivers/scsi/bfa/bfa_iocfc.c8
-rw-r--r--drivers/scsi/bfa/bfa_iocfc.h8
-rw-r--r--drivers/scsi/bfa/bfa_ioim.c4
-rw-r--r--drivers/scsi/bfa/bfa_itnim.c6
-rw-r--r--drivers/scsi/bfa/bfa_log.c4
-rw-r--r--drivers/scsi/bfa/bfa_port_priv.h4
-rw-r--r--drivers/scsi/bfa/bfa_rport.c6
-rw-r--r--drivers/scsi/bfa/bfa_tskim.c9
-rw-r--r--drivers/scsi/bfa/bfa_uf.c2
-rw-r--r--drivers/scsi/bfa/bfad.c6
-rw-r--r--drivers/scsi/bfa/bfad_fwimg.c8
-rw-r--r--drivers/scsi/bfa/bfad_im.c2
-rw-r--r--drivers/scsi/bfa/bfad_im_compat.h2
-rw-r--r--drivers/scsi/bfa/bfad_intr.c3
-rw-r--r--drivers/scsi/bfa/fabric.c18
-rw-r--r--drivers/scsi/bfa/fcbuild.c190
-rw-r--r--drivers/scsi/bfa/fcbuild.h6
-rw-r--r--drivers/scsi/bfa/fcpim.c7
-rw-r--r--drivers/scsi/bfa/fcs.h2
-rw-r--r--drivers/scsi/bfa/fdmi.c8
-rw-r--r--drivers/scsi/bfa/include/aen/bfa_aen.h2
-rw-r--r--drivers/scsi/bfa/include/bfa.h10
-rw-r--r--drivers/scsi/bfa/include/bfa_svc.h8
-rw-r--r--drivers/scsi/bfa/include/bfi/bfi.h12
-rw-r--r--drivers/scsi/bfa/include/bfi/bfi_ioc.h2
-rw-r--r--drivers/scsi/bfa/include/bfi/bfi_lps.h4
-rw-r--r--drivers/scsi/bfa/include/bfi/bfi_rport.h8
-rw-r--r--drivers/scsi/bfa/include/cs/bfa_checksum.h6
-rw-r--r--drivers/scsi/bfa/include/cs/bfa_sm.h6
-rw-r--r--drivers/scsi/bfa/include/cs/bfa_trc.h2
-rw-r--r--drivers/scsi/bfa/include/fcs/bfa_fcs_fabric.h2
-rw-r--r--drivers/scsi/bfa/include/fcs/bfa_fcs_lport.h17
-rw-r--r--drivers/scsi/bfa/include/protocol/ct.h10
-rw-r--r--drivers/scsi/bfa/include/protocol/fc.h22
-rw-r--r--drivers/scsi/bfa/loop.c233
-rw-r--r--drivers/scsi/bfa/lport_api.c15
-rw-r--r--drivers/scsi/bfa/ns.c5
-rw-r--r--drivers/scsi/bfa/plog.c2
-rw-r--r--drivers/scsi/bfa/rport_ftrs.c28
-rw-r--r--drivers/scsi/bfa/vfapi.c2
-rw-r--r--drivers/scsi/bfa/vport.c20
-rw-r--r--drivers/scsi/bnx2i/bnx2i.h1
-rw-r--r--drivers/scsi/bnx2i/bnx2i_iscsi.c10
-rw-r--r--drivers/scsi/constants.c1
-rw-r--r--drivers/scsi/cxgb3i/cxgb3i_iscsi.c2
-rw-r--r--drivers/scsi/device_handler/scsi_dh.c28
-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c139
-rw-r--r--drivers/scsi/device_handler/scsi_dh_emc.c7
-rw-r--r--drivers/scsi/device_handler/scsi_dh_hp_sw.c94
-rw-r--r--drivers/scsi/device_handler/scsi_dh_rdac.c115
-rw-r--r--drivers/scsi/fcoe/fcoe.c1376
-rw-r--r--drivers/scsi/fcoe/fcoe.h82
-rw-r--r--drivers/scsi/fcoe/libfcoe.c433
-rw-r--r--drivers/scsi/fnic/fnic.h25
-rw-r--r--drivers/scsi/fnic/fnic_fcs.c499
-rw-r--r--drivers/scsi/fnic/fnic_isr.c18
-rw-r--r--drivers/scsi/fnic/fnic_main.c104
-rw-r--r--drivers/scsi/fnic/fnic_res.c5
-rw-r--r--drivers/scsi/fnic/fnic_res.h54
-rw-r--r--drivers/scsi/fnic/fnic_scsi.c96
-rw-r--r--drivers/scsi/fnic/vnic_scsi.h1
-rw-r--r--drivers/scsi/hosts.c13
-rw-r--r--drivers/scsi/hptiop.c5
-rw-r--r--drivers/scsi/ibmvscsi/ibmvfc.c335
-rw-r--r--drivers/scsi/ibmvscsi/ibmvfc.h12
-rw-r--r--drivers/scsi/ibmvscsi/ibmvscsi.c7
-rw-r--r--drivers/scsi/ipr.c7
-rw-r--r--drivers/scsi/iscsi_tcp.c2
-rw-r--r--drivers/scsi/libfc/Makefile4
-rw-r--r--drivers/scsi/libfc/fc_disc.c85
-rw-r--r--drivers/scsi/libfc/fc_elsct.c79
-rw-r--r--drivers/scsi/libfc/fc_exch.c932
-rw-r--r--drivers/scsi/libfc/fc_fcp.c1044
-rw-r--r--drivers/scsi/libfc/fc_frame.c13
-rw-r--r--drivers/scsi/libfc/fc_libfc.c134
-rw-r--r--drivers/scsi/libfc/fc_libfc.h112
-rw-r--r--drivers/scsi/libfc/fc_lport.c853
-rw-r--r--drivers/scsi/libfc/fc_npiv.c161
-rw-r--r--drivers/scsi/libfc/fc_rport.c409
-rw-r--r--drivers/scsi/libiscsi.c389
-rw-r--r--drivers/scsi/libsas/sas_scsi_host.c6
-rw-r--r--drivers/scsi/lpfc/lpfc.h17
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c262
-rw-r--r--drivers/scsi/lpfc/lpfc_bsg.c5
-rw-r--r--drivers/scsi/lpfc/lpfc_crtn.h14
-rw-r--r--drivers/scsi/lpfc/lpfc_ct.c53
-rw-r--r--drivers/scsi/lpfc/lpfc_debugfs.c10
-rw-r--r--drivers/scsi/lpfc/lpfc_disc.h4
-rw-r--r--drivers/scsi/lpfc/lpfc_els.c76
-rwxr-xr-x[-rw-r--r--]drivers/scsi/lpfc/lpfc_hbadisc.c129
-rw-r--r--drivers/scsi/lpfc/lpfc_hw.h34
-rw-r--r--drivers/scsi/lpfc/lpfc_hw4.h131
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c515
-rw-r--r--drivers/scsi/lpfc/lpfc_mbox.c35
-rw-r--r--drivers/scsi/lpfc/lpfc_nportdisc.c7
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c394
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c1240
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.h27
-rw-r--r--drivers/scsi/lpfc/lpfc_sli4.h34
-rw-r--r--drivers/scsi/lpfc/lpfc_version.h3
-rw-r--r--drivers/scsi/lpfc/lpfc_vport.c4
-rw-r--r--drivers/scsi/megaraid/megaraid_mbox.c7
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.c738
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.h149
-rw-r--r--drivers/scsi/mpt2sas/mpi/mpi2.h5
-rw-r--r--drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h274
-rw-r--r--drivers/scsi/mpt2sas/mpi/mpi2_ioc.h18
-rw-r--r--drivers/scsi/mpt2sas/mpi/mpi2_raid.h14
-rw-r--r--drivers/scsi/mpt2sas/mpi/mpi2_tool.h16
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_base.c152
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_base.h37
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_ctl.c197
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_ctl.h4
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_scsih.c819
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_transport.c86
-rw-r--r--drivers/scsi/osd/osd_initiator.c121
-rw-r--r--drivers/scsi/osd/osd_uld.c260
-rw-r--r--drivers/scsi/pm8001/Makefile12
-rw-r--r--drivers/scsi/pm8001/pm8001_chips.h89
-rw-r--r--drivers/scsi/pm8001/pm8001_ctl.c573
-rw-r--r--drivers/scsi/pm8001/pm8001_ctl.h67
-rw-r--r--drivers/scsi/pm8001/pm8001_defs.h112
-rw-r--r--drivers/scsi/pm8001/pm8001_hwi.c4458
-rw-r--r--drivers/scsi/pm8001/pm8001_hwi.h1030
-rw-r--r--drivers/scsi/pm8001/pm8001_init.c891
-rw-r--r--drivers/scsi/pm8001/pm8001_sas.c1103
-rw-r--r--drivers/scsi/pm8001/pm8001_sas.h481
-rw-r--r--drivers/scsi/pmcraid.c7
-rw-r--r--drivers/scsi/qla2xxx/qla_attr.c3
-rw-r--r--drivers/scsi/qla2xxx/qla_dbg.c78
-rw-r--r--drivers/scsi/qla2xxx/qla_def.h9
-rw-r--r--drivers/scsi/qla2xxx/qla_gbl.h3
-rw-r--r--drivers/scsi/qla2xxx/qla_init.c12
-rw-r--r--drivers/scsi/qla2xxx/qla_isr.c144
-rw-r--r--drivers/scsi/qla2xxx/qla_mbx.c50
-rw-r--r--drivers/scsi/qla2xxx/qla_mid.c2
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c67
-rw-r--r--drivers/scsi/qla2xxx/qla_version.h2
-rw-r--r--drivers/scsi/qlogicpti.h2
-rw-r--r--drivers/scsi/scsi.c10
-rw-r--r--drivers/scsi/scsi_debug.c351
-rw-r--r--drivers/scsi/scsi_devinfo.c13
-rw-r--r--drivers/scsi/scsi_error.c65
-rw-r--r--drivers/scsi/scsi_ioctl.c3
-rw-r--r--drivers/scsi/scsi_lib.c11
-rw-r--r--drivers/scsi/scsi_lib_dma.c4
-rw-r--r--drivers/scsi/scsi_scan.c3
-rw-r--r--drivers/scsi/scsi_sysfs.c44
-rw-r--r--drivers/scsi/scsi_transport_fc.c99
-rw-r--r--drivers/scsi/scsi_transport_iscsi.c13
-rw-r--r--drivers/scsi/st.c3
-rw-r--r--drivers/scsi/stex.c282
-rw-r--r--drivers/scsi/vmw_pvscsi.c1407
-rw-r--r--drivers/scsi/vmw_pvscsi.h397
-rw-r--r--include/linux/libata.h2
-rw-r--r--include/linux/pci_ids.h2
-rw-r--r--include/scsi/Kbuild1
-rw-r--r--include/scsi/fc/Kbuild4
-rw-r--r--include/scsi/fc/fc_els.h6
-rw-r--r--include/scsi/fc/fc_fcoe.h12
-rw-r--r--include/scsi/fc/fc_fcp.h8
-rw-r--r--include/scsi/fc/fc_fip.h12
-rw-r--r--include/scsi/fc/fc_fs.h2
-rw-r--r--include/scsi/fc/fc_gs.h2
-rw-r--r--include/scsi/fc/fc_ns.h35
-rw-r--r--include/scsi/fc_encode.h68
-rw-r--r--include/scsi/fc_frame.h22
-rw-r--r--include/scsi/iscsi_if.h3
-rw-r--r--include/scsi/iscsi_proto.h2
-rw-r--r--include/scsi/libfc.h1158
-rw-r--r--include/scsi/libfcoe.h93
-rw-r--r--include/scsi/libiscsi.h4
-rw-r--r--include/scsi/libsas.h3
-rw-r--r--include/scsi/osd_initiator.h81
-rw-r--r--include/scsi/osd_protocol.h1
-rw-r--r--include/scsi/osd_sense.h3
-rw-r--r--include/scsi/scsi.h4
-rw-r--r--include/scsi/scsi_device.h12
-rw-r--r--include/scsi/scsi_dh.h6
-rw-r--r--include/scsi/scsi_host.h24
-rw-r--r--include/scsi/scsi_transport_fc.h1
235 files changed, 27284 insertions, 7716 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-qla2xxx b/Documentation/ABI/stable/sysfs-driver-qla2xxx
new file mode 100644
index 000000000000..9a59d84497ed
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-driver-qla2xxx
@@ -0,0 +1,8 @@
+What: /sys/bus/pci/drivers/qla2xxx/.../devices/*
+Date: September 2009
+Contact: QLogic Linux Driver <linux-driver@qlogic.com>
+Description: qla2xxx-udev.sh currently looks for uevent CHANGE events to
+ signal a firmware-dump has been generated by the driver and is
+ ready for retrieval.
+Users: qla2xxx-udev.sh. Proposed changes should be mailed to
+ linux-driver@qlogic.com
diff --git a/Documentation/scsi/ChangeLog.megaraid_sas b/Documentation/scsi/ChangeLog.megaraid_sas
index c851ef497795..151a7b718b8c 100644
--- a/Documentation/scsi/ChangeLog.megaraid_sas
+++ b/Documentation/scsi/ChangeLog.megaraid_sas
@@ -1,3 +1,65 @@
+1 Release Date : Tues. July 28, 2009 10:12:45 PST 2009 -
+ (emaild-id:megaraidlinux@lsi.com)
+ Bo Yang
+
+2 Current Version : 00.00.04.12
+3 Older Version : 00.00.04.10
+
+1. Change the AEN sys PD update from scsi_scan to
+ scsi_add_device and scsi_remove_device.
+2. Takeoff the debug print-out in aen_polling routine.
+
+1 Release Date : Thur. July 02, 2009 10:12:45 PST 2009 -
+ (emaild-id:megaraidlinux@lsi.com)
+ Bo Yang
+
+2 Current Version : 00.00.04.10
+3 Older Version : 00.00.04.08
+
+1. Add the 3 mins timeout during the controller initialize.
+2. Add the fix for 64bit sense date errors.
+
+1 Release Date : Tues. May 05, 2009 10:12:45 PST 2009 -
+ (emaild-id:megaraidlinux@lsi.com)
+ Bo Yang
+
+2 Current Version : 00.00.04.08
+3 Older Version : 00.00.04.06
+
+1. Add the fix of pending in FW after deleted the logic drives.
+2. Add the fix of deallocating memory after get pdlist.
+
+1 Release Date : Tues. March 26, 2009 10:12:45 PST 2009 -
+ (emaild-id:megaraidlinux@lsi.com)
+ Bo Yang
+
+2 Current Version : 00.00.04.06
+3 Older Version : 00.00.04.04
+
+1. Add the fix of the driver cmd empty fix of the driver cmd empty.
+2. Add the fix of the driver MSM AEN CMD cause the system slow.
+
+1 Release Date : Tues. March 03, 2009 10:12:45 PST 2009 -
+ (emaild-id:megaraidlinux@lsi.com)
+ Bo Yang
+
+2 Current Version : 00.00.04.04
+3 Older Version : 00.00.04.01
+
+1. Add the Tape drive fix to the driver: If the command is for
+ the tape device, set the pthru timeout to the os layer timeout value.
+
+2. Add Poll_wait mechanism to Gen-2 Linux driv.
+ In the aen handler, driver needs to wakeup poll handler similar to
+ the way it raises SIGIO.
+
+3. Add new controller new SAS2 support to the driver.
+
+4. Report the unconfigured PD (system PD) to OS.
+
+5. Add the IEEE SGL support to the driver
+
+6. Reasign the Application cmds to SAS2 controller
1 Release Date : Thur.July. 24 11:41:51 PST 2008 -
(emaild-id:megaraidlinux@lsi.com)
diff --git a/MAINTAINERS b/MAINTAINERS
index c8973c6102d8..f7b0ced81116 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4196,6 +4196,13 @@ W: http://www.pmc-sierra.com/
S: Supported
F: drivers/scsi/pmcraid.*
+PMC SIERRA PM8001 DRIVER
+M: jack_wang@usish.com
+M: lindar_liu@usish.com
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/pm8001/
+
POSIX CLOCKS and TIMERS
M: Thomas Gleixner <tglx@linutronix.de>
S: Supported
@@ -5772,6 +5779,14 @@ L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/vmxnet3/
+VMware PVSCSI driver
+M: Alok Kataria <akataria@vmware.com>
+M: VMware PV-Drivers <pv-drivers@vmware.com>
+L: linux-scsi@vger.kernel.org
+S: Maintained
+F: drivers/scsi/vmw_pvscsi.c
+F: drivers/scsi/vmw_pvscsi.h
+
VOLTAGE AND CURRENT REGULATOR FRAMEWORK
M: Liam Girdwood <lrg@slimlogic.co.uk>
M: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 62e6b9ea96af..1683ebda900b 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1208,6 +1208,7 @@ void ata_scsi_slave_destroy(struct scsi_device *sdev)
* ata_scsi_change_queue_depth - SCSI callback for queue depth config
* @sdev: SCSI device to configure queue depth for
* @queue_depth: new queue depth
+ * @reason: calling context
*
* This is libata standard hostt->change_queue_depth callback.
* SCSI will call into this callback when user tries to set queue
@@ -1219,12 +1220,16 @@ void ata_scsi_slave_destroy(struct scsi_device *sdev)
* RETURNS:
* Newly configured queue depth.
*/
-int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth)
+int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth,
+ int reason)
{
struct ata_port *ap = ata_shost_to_port(sdev->host);
struct ata_device *dev;
unsigned long flags;
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
if (queue_depth < 1 || queue_depth == sdev->queue_depth)
return sdev->queue_depth;
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 1eb4e020eb5c..0c82d335c55d 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -1975,7 +1975,7 @@ static int nv_swncq_slave_config(struct scsi_device *sdev)
ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
if (strncmp(model_num, "Maxtor", 6) == 0) {
- ata_scsi_change_queue_depth(sdev, 1);
+ ata_scsi_change_queue_depth(sdev, 1, SCSI_QDEPTH_DEFAULT);
ata_dev_printk(dev, KERN_NOTICE,
"Disabling SWNCQ mode (depth %x)\n", sdev->queue_depth);
}
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index add9188663ff..5f7a6fca0a4d 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -625,6 +625,7 @@ static struct iscsi_transport iscsi_iser_transport = {
ISCSI_USERNAME | ISCSI_PASSWORD |
ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN |
ISCSI_FAST_ABORT | ISCSI_ABORT_TMO |
+ ISCSI_LU_RESET_TMO | ISCSI_TGT_RESET_TMO |
ISCSI_PING_TMO | ISCSI_RECV_TMO |
ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME,
.host_param_mask = ISCSI_HOST_HWADDRESS |
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 32d0b878eccc..dce971dbdfa3 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1116,8 +1116,9 @@ static int pg_init_limit_reached(struct multipath *m, struct pgpath *pgpath)
return limit_reached;
}
-static void pg_init_done(struct dm_path *path, int errors)
+static void pg_init_done(void *data, int errors)
{
+ struct dm_path *path = data;
struct pgpath *pgpath = path_to_pgpath(path);
struct priority_group *pg = pgpath->pg;
struct multipath *m = pg->m;
@@ -1183,12 +1184,11 @@ static void pg_init_done(struct dm_path *path, int errors)
static void activate_path(struct work_struct *work)
{
- int ret;
struct pgpath *pgpath =
container_of(work, struct pgpath, activate_path);
- ret = scsi_dh_activate(bdev_get_queue(pgpath->path.dev->bdev));
- pg_init_done(&pgpath->path, ret);
+ scsi_dh_activate(bdev_get_queue(pgpath->path.dev->bdev),
+ pg_init_done, &pgpath->path);
}
/*
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index 8dd4d219e433..b4948671eb92 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -76,8 +76,8 @@
#define COPYRIGHT "Copyright (c) 1999-2008 " MODULEAUTHOR
#endif
-#define MPT_LINUX_VERSION_COMMON "3.04.12"
-#define MPT_LINUX_PACKAGE_NAME "@(#)mptlinux-3.04.12"
+#define MPT_LINUX_VERSION_COMMON "3.04.13"
+#define MPT_LINUX_PACKAGE_NAME "@(#)mptlinux-3.04.13"
#define WHAT_MAGIC_STRING "@" "(" "#" ")"
#define show_mptmod_ver(s,ver) \
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index 9b2e2198aee9..352acd05c46b 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -621,11 +621,8 @@ __mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
*/
iocnumX = khdr.iocnum & 0xFF;
if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
- (iocp == NULL)) {
- printk(KERN_DEBUG MYNAM "%s::mptctl_ioctl() @%d - ioc%d not found!\n",
- __FILE__, __LINE__, iocnumX);
+ (iocp == NULL))
return -ENODEV;
- }
if (!iocp->active) {
printk(KERN_DEBUG MYNAM "%s::mptctl_ioctl() @%d - Controller disabled.\n",
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index c29578614504..57752751712b 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -792,11 +792,36 @@ mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
* precedence!
*/
sc->result = (DID_OK << 16) | scsi_status;
- if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
- /* Have already saved the status and sense data
+ if (!(scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID)) {
+
+ /*
+ * For an Errata on LSI53C1030
+ * When the length of request data
+ * and transfer data are different
+ * with result of command (READ or VERIFY),
+ * DID_SOFT_ERROR is set.
*/
- ;
- } else {
+ if (ioc->bus_type == SPI) {
+ if (pScsiReq->CDB[0] == READ_6 ||
+ pScsiReq->CDB[0] == READ_10 ||
+ pScsiReq->CDB[0] == READ_12 ||
+ pScsiReq->CDB[0] == READ_16 ||
+ pScsiReq->CDB[0] == VERIFY ||
+ pScsiReq->CDB[0] == VERIFY_16) {
+ if (scsi_bufflen(sc) !=
+ xfer_cnt) {
+ sc->result =
+ DID_SOFT_ERROR << 16;
+ printk(KERN_WARNING "Errata"
+ "on LSI53C1030 occurred."
+ "sc->req_bufflen=0x%02x,"
+ "xfer_cnt=0x%02x\n",
+ scsi_bufflen(sc),
+ xfer_cnt);
+ }
+ }
+ }
+
if (xfer_cnt < sc->underflow) {
if (scsi_status == SAM_STAT_BUSY)
sc->result = SAM_STAT_BUSY;
@@ -835,7 +860,58 @@ mptscsih_io_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
sc->result = (DID_OK << 16) | scsi_status;
if (scsi_state == 0) {
;
- } else if (scsi_state & MPI_SCSI_STATE_AUTOSENSE_VALID) {
+ } else if (scsi_state &
+ MPI_SCSI_STATE_AUTOSENSE_VALID) {
+
+ /*
+ * For potential trouble on LSI53C1030.
+ * (date:2007.xx.)
+ * It is checked whether the length of
+ * request data is equal to
+ * the length of transfer and residual.
+ * MEDIUM_ERROR is set by incorrect data.
+ */
+ if ((ioc->bus_type == SPI) &&
+ (sc->sense_buffer[2] & 0x20)) {
+ u32 difftransfer;
+ difftransfer =
+ sc->sense_buffer[3] << 24 |
+ sc->sense_buffer[4] << 16 |
+ sc->sense_buffer[5] << 8 |
+ sc->sense_buffer[6];
+ if (((sc->sense_buffer[3] & 0x80) ==
+ 0x80) && (scsi_bufflen(sc)
+ != xfer_cnt)) {
+ sc->sense_buffer[2] =
+ MEDIUM_ERROR;
+ sc->sense_buffer[12] = 0xff;
+ sc->sense_buffer[13] = 0xff;
+ printk(KERN_WARNING"Errata"
+ "on LSI53C1030 occurred."
+ "sc->req_bufflen=0x%02x,"
+ "xfer_cnt=0x%02x\n" ,
+ scsi_bufflen(sc),
+ xfer_cnt);
+ }
+ if (((sc->sense_buffer[3] & 0x80)
+ != 0x80) &&
+ (scsi_bufflen(sc) !=
+ xfer_cnt + difftransfer)) {
+ sc->sense_buffer[2] =
+ MEDIUM_ERROR;
+ sc->sense_buffer[12] = 0xff;
+ sc->sense_buffer[13] = 0xff;
+ printk(KERN_WARNING
+ "Errata on LSI53C1030 occurred"
+ "sc->req_bufflen=0x%02x,"
+ " xfer_cnt=0x%02x,"
+ "difftransfer=0x%02x\n",
+ scsi_bufflen(sc),
+ xfer_cnt,
+ difftransfer);
+ }
+ }
+
/*
* If running against circa 200003dd 909 MPT f/w,
* may get this (AUTOSENSE_VALID) for actual TASK_SET_FULL
@@ -2275,11 +2351,12 @@ mptscsih_slave_destroy(struct scsi_device *sdev)
* mptscsih_change_queue_depth - This function will set a devices queue depth
* @sdev: per scsi_device pointer
* @qdepth: requested queue depth
+ * @reason: calling context
*
* Adding support for new 'change_queue_depth' api.
*/
int
-mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
+mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
{
MPT_SCSI_HOST *hd = shost_priv(sdev->host);
VirtTarget *vtarget;
@@ -2291,6 +2368,9 @@ mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
starget = scsi_target(sdev);
vtarget = starget->hostdata;
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
if (ioc->bus_type == SPI) {
if (!(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
max_depth = 1;
@@ -2357,7 +2437,8 @@ mptscsih_slave_configure(struct scsi_device *sdev)
ioc->name, vtarget->negoFlags, vtarget->maxOffset,
vtarget->minSyncFactor));
- mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
+ mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH,
+ SCSI_QDEPTH_DEFAULT);
dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
"tagged %d, simple %d, ordered %d\n",
ioc->name,sdev->tagged_supported, sdev->simple_tags,
diff --git a/drivers/message/fusion/mptscsih.h b/drivers/message/fusion/mptscsih.h
index e0b33e04a33b..45a5ff3eff61 100644
--- a/drivers/message/fusion/mptscsih.h
+++ b/drivers/message/fusion/mptscsih.h
@@ -128,7 +128,8 @@ extern int mptscsih_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_F
extern int mptscsih_scandv_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *r);
extern int mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
extern int mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
-extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth);
+extern int mptscsih_change_queue_depth(struct scsi_device *sdev, int qdepth,
+ int reason);
extern u8 mptscsih_raid_id_to_num(MPT_ADAPTER *ioc, u8 channel, u8 id);
extern int mptscsih_is_phys_disk(MPT_ADAPTER *ioc, u8 channel, u8 id);
extern struct device_attribute *mptscsih_host_attrs[];
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 2889e5f2dfd3..9d0c941b7d33 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -31,6 +31,7 @@
#include <linux/miscdevice.h>
#include <linux/seq_file.h>
#include "zfcp_ext.h"
+#include "zfcp_fc.h"
#define ZFCP_BUS_ID_SIZE 20
@@ -80,48 +81,40 @@ int zfcp_reqlist_isempty(struct zfcp_adapter *adapter)
static void __init zfcp_init_device_configure(char *busid, u64 wwpn, u64 lun)
{
- struct ccw_device *ccwdev;
+ struct ccw_device *cdev;
struct zfcp_adapter *adapter;
struct zfcp_port *port;
struct zfcp_unit *unit;
- ccwdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
- if (!ccwdev)
+ cdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
+ if (!cdev)
return;
- if (ccw_device_set_online(ccwdev))
- goto out_ccwdev;
+ if (ccw_device_set_online(cdev))
+ goto out_ccw_device;
- mutex_lock(&zfcp_data.config_mutex);
- adapter = dev_get_drvdata(&ccwdev->dev);
+ adapter = zfcp_ccw_adapter_by_cdev(cdev);
if (!adapter)
- goto out_unlock;
- zfcp_adapter_get(adapter);
+ goto out_ccw_device;
port = zfcp_get_port_by_wwpn(adapter, wwpn);
if (!port)
goto out_port;
- zfcp_port_get(port);
unit = zfcp_unit_enqueue(port, lun);
if (IS_ERR(unit))
goto out_unit;
- mutex_unlock(&zfcp_data.config_mutex);
zfcp_erp_unit_reopen(unit, 0, "auidc_1", NULL);
zfcp_erp_wait(adapter);
flush_work(&unit->scsi_work);
- mutex_lock(&zfcp_data.config_mutex);
- zfcp_unit_put(unit);
out_unit:
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
out_port:
- zfcp_adapter_put(adapter);
-out_unlock:
- mutex_unlock(&zfcp_data.config_mutex);
-out_ccwdev:
- put_device(&ccwdev->dev);
+ zfcp_ccw_adapter_put(adapter);
+out_ccw_device:
+ put_device(&cdev->dev);
return;
}
@@ -167,7 +160,7 @@ static int __init zfcp_module_init(void)
int retval = -ENOMEM;
zfcp_data.gpn_ft_cache = zfcp_cache_hw_align("zfcp_gpn",
- sizeof(struct ct_iu_gpn_ft_req));
+ sizeof(struct zfcp_fc_gpn_ft_req));
if (!zfcp_data.gpn_ft_cache)
goto out;
@@ -182,12 +175,14 @@ static int __init zfcp_module_init(void)
goto out_sr_cache;
zfcp_data.gid_pn_cache = zfcp_cache_hw_align("zfcp_gid",
- sizeof(struct zfcp_gid_pn_data));
+ sizeof(struct zfcp_fc_gid_pn));
if (!zfcp_data.gid_pn_cache)
goto out_gid_cache;
- mutex_init(&zfcp_data.config_mutex);
- rwlock_init(&zfcp_data.config_lock);
+ zfcp_data.adisc_cache = zfcp_cache_hw_align("zfcp_adisc",
+ sizeof(struct zfcp_fc_els_adisc));
+ if (!zfcp_data.adisc_cache)
+ goto out_adisc_cache;
zfcp_data.scsi_transport_template =
fc_attach_transport(&zfcp_transport_functions);
@@ -200,7 +195,7 @@ static int __init zfcp_module_init(void)
goto out_misc;
}
- retval = zfcp_ccw_register();
+ retval = ccw_driver_register(&zfcp_ccw_driver);
if (retval) {
pr_err("The zfcp device driver could not register with "
"the common I/O layer\n");
@@ -216,6 +211,8 @@ out_ccw_register:
out_misc:
fc_release_transport(zfcp_data.scsi_transport_template);
out_transport:
+ kmem_cache_destroy(zfcp_data.adisc_cache);
+out_adisc_cache:
kmem_cache_destroy(zfcp_data.gid_pn_cache);
out_gid_cache:
kmem_cache_destroy(zfcp_data.sr_buffer_cache);
@@ -229,6 +226,20 @@ out:
module_init(zfcp_module_init);
+static void __exit zfcp_module_exit(void)
+{
+ ccw_driver_unregister(&zfcp_ccw_driver);
+ misc_deregister(&zfcp_cfdc_misc);
+ fc_release_transport(zfcp_data.scsi_transport_template);
+ kmem_cache_destroy(zfcp_data.adisc_cache);
+ kmem_cache_destroy(zfcp_data.gid_pn_cache);
+ kmem_cache_destroy(zfcp_data.sr_buffer_cache);
+ kmem_cache_destroy(zfcp_data.qtcb_cache);
+ kmem_cache_destroy(zfcp_data.gpn_ft_cache);
+}
+
+module_exit(zfcp_module_exit);
+
/**
* zfcp_get_unit_by_lun - find unit in unit list of port by FCP LUN
* @port: pointer to port to search for unit
@@ -238,12 +249,18 @@ module_init(zfcp_module_init);
*/
struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *port, u64 fcp_lun)
{
+ unsigned long flags;
struct zfcp_unit *unit;
- list_for_each_entry(unit, &port->unit_list_head, list)
- if ((unit->fcp_lun == fcp_lun) &&
- !(atomic_read(&unit->status) & ZFCP_STATUS_COMMON_REMOVE))
- return unit;
+ read_lock_irqsave(&port->unit_list_lock, flags);
+ list_for_each_entry(unit, &port->unit_list, list)
+ if (unit->fcp_lun == fcp_lun) {
+ if (!get_device(&unit->sysfs_device))
+ unit = NULL;
+ read_unlock_irqrestore(&port->unit_list_lock, flags);
+ return unit;
+ }
+ read_unlock_irqrestore(&port->unit_list_lock, flags);
return NULL;
}
@@ -257,18 +274,35 @@ struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *port, u64 fcp_lun)
struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *adapter,
u64 wwpn)
{
+ unsigned long flags;
struct zfcp_port *port;
- list_for_each_entry(port, &adapter->port_list_head, list)
- if ((port->wwpn == wwpn) &&
- !(atomic_read(&port->status) & ZFCP_STATUS_COMMON_REMOVE))
+ read_lock_irqsave(&adapter->port_list_lock, flags);
+ list_for_each_entry(port, &adapter->port_list, list)
+ if (port->wwpn == wwpn) {
+ if (!get_device(&port->sysfs_device))
+ port = NULL;
+ read_unlock_irqrestore(&adapter->port_list_lock, flags);
return port;
+ }
+ read_unlock_irqrestore(&adapter->port_list_lock, flags);
return NULL;
}
-static void zfcp_sysfs_unit_release(struct device *dev)
+/**
+ * zfcp_unit_release - dequeue unit
+ * @dev: pointer to device
+ *
+ * waits until all work is done on unit and removes it then from the unit->list
+ * of the associated port.
+ */
+static void zfcp_unit_release(struct device *dev)
{
- kfree(container_of(dev, struct zfcp_unit, sysfs_device));
+ struct zfcp_unit *unit = container_of(dev, struct zfcp_unit,
+ sysfs_device);
+
+ put_device(&unit->port->sysfs_device);
+ kfree(unit);
}
/**
@@ -276,43 +310,40 @@ static void zfcp_sysfs_unit_release(struct device *dev)
* @port: pointer to port where unit is added
* @fcp_lun: FCP LUN of unit to be enqueued
* Returns: pointer to enqueued unit on success, ERR_PTR on error
- * Locks: config_mutex must be held to serialize changes to the unit list
*
* Sets up some unit internal structures and creates sysfs entry.
*/
struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *port, u64 fcp_lun)
{
struct zfcp_unit *unit;
+ int retval = -ENOMEM;
- read_lock_irq(&zfcp_data.config_lock);
- if (zfcp_get_unit_by_lun(port, fcp_lun)) {
- read_unlock_irq(&zfcp_data.config_lock);
- return ERR_PTR(-EINVAL);
+ get_device(&port->sysfs_device);
+
+ unit = zfcp_get_unit_by_lun(port, fcp_lun);
+ if (unit) {
+ put_device(&unit->sysfs_device);
+ retval = -EEXIST;
+ goto err_out;
}
- read_unlock_irq(&zfcp_data.config_lock);
unit = kzalloc(sizeof(struct zfcp_unit), GFP_KERNEL);
if (!unit)
- return ERR_PTR(-ENOMEM);
-
- atomic_set(&unit->refcount, 0);
- init_waitqueue_head(&unit->remove_wq);
- INIT_WORK(&unit->scsi_work, zfcp_scsi_scan);
+ goto err_out;
unit->port = port;
unit->fcp_lun = fcp_lun;
+ unit->sysfs_device.parent = &port->sysfs_device;
+ unit->sysfs_device.release = zfcp_unit_release;
if (dev_set_name(&unit->sysfs_device, "0x%016llx",
(unsigned long long) fcp_lun)) {
kfree(unit);
- return ERR_PTR(-ENOMEM);
+ goto err_out;
}
- unit->sysfs_device.parent = &port->sysfs_device;
- unit->sysfs_device.release = zfcp_sysfs_unit_release;
- dev_set_drvdata(&unit->sysfs_device, unit);
+ retval = -EINVAL;
- /* mark unit unusable as long as sysfs registration is not complete */
- atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &unit->status);
+ INIT_WORK(&unit->scsi_work, zfcp_scsi_scan);
spin_lock_init(&unit->latencies.lock);
unit->latencies.write.channel.min = 0xFFFFFFFF;
@@ -324,50 +355,30 @@ struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *port, u64 fcp_lun)
if (device_register(&unit->sysfs_device)) {
put_device(&unit->sysfs_device);
- return ERR_PTR(-EINVAL);
+ goto err_out;
}
if (sysfs_create_group(&unit->sysfs_device.kobj,
- &zfcp_sysfs_unit_attrs)) {
- device_unregister(&unit->sysfs_device);
- return ERR_PTR(-EINVAL);
- }
+ &zfcp_sysfs_unit_attrs))
+ goto err_out_put;
- zfcp_unit_get(unit);
+ write_lock_irq(&port->unit_list_lock);
+ list_add_tail(&unit->list, &port->unit_list);
+ write_unlock_irq(&port->unit_list_lock);
- write_lock_irq(&zfcp_data.config_lock);
- list_add_tail(&unit->list, &port->unit_list_head);
- atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &unit->status);
atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING, &unit->status);
- write_unlock_irq(&zfcp_data.config_lock);
-
- zfcp_port_get(port);
-
return unit;
-}
-/**
- * zfcp_unit_dequeue - dequeue unit
- * @unit: pointer to zfcp_unit
- *
- * waits until all work is done on unit and removes it then from the unit->list
- * of the associated port.
- */
-void zfcp_unit_dequeue(struct zfcp_unit *unit)
-{
- wait_event(unit->remove_wq, atomic_read(&unit->refcount) == 0);
- write_lock_irq(&zfcp_data.config_lock);
- list_del(&unit->list);
- write_unlock_irq(&zfcp_data.config_lock);
- zfcp_port_put(unit->port);
- sysfs_remove_group(&unit->sysfs_device.kobj, &zfcp_sysfs_unit_attrs);
+err_out_put:
device_unregister(&unit->sysfs_device);
+err_out:
+ put_device(&port->sysfs_device);
+ return ERR_PTR(retval);
}
static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
{
- /* must only be called with zfcp_data.config_mutex taken */
adapter->pool.erp_req =
mempool_create_kmalloc_pool(1, sizeof(struct zfcp_fsf_req));
if (!adapter->pool.erp_req)
@@ -405,9 +416,9 @@ static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
if (!adapter->pool.status_read_data)
return -ENOMEM;
- adapter->pool.gid_pn_data =
+ adapter->pool.gid_pn =
mempool_create_slab_pool(1, zfcp_data.gid_pn_cache);
- if (!adapter->pool.gid_pn_data)
+ if (!adapter->pool.gid_pn)
return -ENOMEM;
return 0;
@@ -415,7 +426,6 @@ static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
static void zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)
{
- /* zfcp_data.config_mutex must be held */
if (adapter->pool.erp_req)
mempool_destroy(adapter->pool.erp_req);
if (adapter->pool.scsi_req)
@@ -428,8 +438,8 @@ static void zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)
mempool_destroy(adapter->pool.status_read_req);
if (adapter->pool.status_read_data)
mempool_destroy(adapter->pool.status_read_data);
- if (adapter->pool.gid_pn_data)
- mempool_destroy(adapter->pool.gid_pn_data);
+ if (adapter->pool.gid_pn)
+ mempool_destroy(adapter->pool.gid_pn);
}
/**
@@ -497,53 +507,56 @@ static void zfcp_destroy_adapter_work_queue(struct zfcp_adapter *adapter)
* zfcp_adapter_enqueue - enqueue a new adapter to the list
* @ccw_device: pointer to the struct cc_device
*
- * Returns: 0 if a new adapter was successfully enqueued
- * -ENOMEM if alloc failed
+ * Returns: struct zfcp_adapter*
* Enqueues an adapter at the end of the adapter list in the driver data.
* All adapter internal structures are set up.
* Proc-fs entries are also created.
- * locks: config_mutex must be held to serialize changes to the adapter list
*/
-int zfcp_adapter_enqueue(struct ccw_device *ccw_device)
+struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device)
{
struct zfcp_adapter *adapter;
- /*
- * Note: It is safe to release the list_lock, as any list changes
- * are protected by the config_mutex, which must be held to get here
- */
+ if (!get_device(&ccw_device->dev))
+ return ERR_PTR(-ENODEV);
adapter = kzalloc(sizeof(struct zfcp_adapter), GFP_KERNEL);
- if (!adapter)
- return -ENOMEM;
+ if (!adapter) {
+ put_device(&ccw_device->dev);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ kref_init(&adapter->ref);
ccw_device->handler = NULL;
adapter->ccw_device = ccw_device;
- atomic_set(&adapter->refcount, 0);
+
+ INIT_WORK(&adapter->stat_work, _zfcp_status_read_scheduler);
+ INIT_WORK(&adapter->scan_work, zfcp_fc_scan_ports);
if (zfcp_qdio_setup(adapter))
- goto qdio_failed;
+ goto failed;
if (zfcp_allocate_low_mem_buffers(adapter))
- goto low_mem_buffers_failed;
+ goto failed;
if (zfcp_reqlist_alloc(adapter))
- goto low_mem_buffers_failed;
+ goto failed;
if (zfcp_dbf_adapter_register(adapter))
- goto debug_register_failed;
+ goto failed;
if (zfcp_setup_adapter_work_queue(adapter))
- goto work_queue_failed;
+ goto failed;
if (zfcp_fc_gs_setup(adapter))
- goto generic_services_failed;
+ goto failed;
+
+ rwlock_init(&adapter->port_list_lock);
+ INIT_LIST_HEAD(&adapter->port_list);
- init_waitqueue_head(&adapter->remove_wq);
init_waitqueue_head(&adapter->erp_ready_wq);
init_waitqueue_head(&adapter->erp_done_wqh);
- INIT_LIST_HEAD(&adapter->port_list_head);
INIT_LIST_HEAD(&adapter->erp_ready_head);
INIT_LIST_HEAD(&adapter->erp_running_head);
@@ -553,83 +566,85 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device)
rwlock_init(&adapter->abort_lock);
if (zfcp_erp_thread_setup(adapter))
- goto erp_thread_failed;
-
- INIT_WORK(&adapter->stat_work, _zfcp_status_read_scheduler);
- INIT_WORK(&adapter->scan_work, _zfcp_fc_scan_ports_later);
+ goto failed;
adapter->service_level.seq_print = zfcp_print_sl;
- /* mark adapter unusable as long as sysfs registration is not complete */
- atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
-
dev_set_drvdata(&ccw_device->dev, adapter);
if (sysfs_create_group(&ccw_device->dev.kobj,
&zfcp_sysfs_adapter_attrs))
- goto sysfs_failed;
-
- atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
+ goto failed;
if (!zfcp_adapter_scsi_register(adapter))
- return 0;
+ return adapter;
-sysfs_failed:
- zfcp_erp_thread_kill(adapter);
-erp_thread_failed:
- zfcp_fc_gs_destroy(adapter);
-generic_services_failed:
+failed:
+ zfcp_adapter_unregister(adapter);
+ return ERR_PTR(-ENOMEM);
+}
+
+void zfcp_adapter_unregister(struct zfcp_adapter *adapter)
+{
+ struct ccw_device *cdev = adapter->ccw_device;
+
+ cancel_work_sync(&adapter->scan_work);
+ cancel_work_sync(&adapter->stat_work);
zfcp_destroy_adapter_work_queue(adapter);
-work_queue_failed:
+
+ zfcp_fc_wka_ports_force_offline(adapter->gs);
+ zfcp_adapter_scsi_unregister(adapter);
+ sysfs_remove_group(&cdev->dev.kobj, &zfcp_sysfs_adapter_attrs);
+
+ zfcp_erp_thread_kill(adapter);
zfcp_dbf_adapter_unregister(adapter->dbf);
-debug_register_failed:
- dev_set_drvdata(&ccw_device->dev, NULL);
- kfree(adapter->req_list);
-low_mem_buffers_failed:
- zfcp_free_low_mem_buffers(adapter);
-qdio_failed:
zfcp_qdio_destroy(adapter->qdio);
- kfree(adapter);
- return -ENOMEM;
+
+ zfcp_ccw_adapter_put(adapter); /* final put to release */
}
/**
- * zfcp_adapter_dequeue - remove the adapter from the resource list
- * @adapter: pointer to struct zfcp_adapter which should be removed
+ * zfcp_adapter_release - remove the adapter from the resource list
+ * @ref: pointer to struct kref
* locks: adapter list write lock is assumed to be held by caller
*/
-void zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
+void zfcp_adapter_release(struct kref *ref)
{
- int retval = 0;
- unsigned long flags;
+ struct zfcp_adapter *adapter = container_of(ref, struct zfcp_adapter,
+ ref);
+ struct ccw_device *cdev = adapter->ccw_device;
- cancel_work_sync(&adapter->stat_work);
- zfcp_fc_wka_ports_force_offline(adapter->gs);
- sysfs_remove_group(&adapter->ccw_device->dev.kobj,
- &zfcp_sysfs_adapter_attrs);
dev_set_drvdata(&adapter->ccw_device->dev, NULL);
- /* sanity check: no pending FSF requests */
- spin_lock_irqsave(&adapter->req_list_lock, flags);
- retval = zfcp_reqlist_isempty(adapter);
- spin_unlock_irqrestore(&adapter->req_list_lock, flags);
- if (!retval)
- return;
-
zfcp_fc_gs_destroy(adapter);
- zfcp_erp_thread_kill(adapter);
- zfcp_destroy_adapter_work_queue(adapter);
- zfcp_dbf_adapter_unregister(adapter->dbf);
zfcp_free_low_mem_buffers(adapter);
- zfcp_qdio_destroy(adapter->qdio);
kfree(adapter->req_list);
kfree(adapter->fc_stats);
kfree(adapter->stats_reset_data);
kfree(adapter);
+ put_device(&cdev->dev);
}
-static void zfcp_sysfs_port_release(struct device *dev)
+/**
+ * zfcp_device_unregister - remove port, unit from system
+ * @dev: reference to device which is to be removed
+ * @grp: related reference to attribute group
+ *
+ * Helper function to unregister port, unit from system
+ */
+void zfcp_device_unregister(struct device *dev,
+ const struct attribute_group *grp)
{
- kfree(container_of(dev, struct zfcp_port, sysfs_device));
+ sysfs_remove_group(&dev->kobj, grp);
+ device_unregister(dev);
+}
+
+static void zfcp_port_release(struct device *dev)
+{
+ struct zfcp_port *port = container_of(dev, struct zfcp_port,
+ sysfs_device);
+
+ zfcp_ccw_adapter_put(port->adapter);
+ kfree(port);
}
/**
@@ -639,7 +654,6 @@ static void zfcp_sysfs_port_release(struct device *dev)
* @status: initial status for the port
* @d_id: destination id of the remote port to be enqueued
* Returns: pointer to enqueued port on success, ERR_PTR on error
- * Locks: config_mutex must be held to serialize changes to the port list
*
* All port internal structures are set up and the sysfs entry is generated.
* d_id is used to enqueue ports with a well known address like the Directory
@@ -649,20 +663,24 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
u32 status, u32 d_id)
{
struct zfcp_port *port;
+ int retval = -ENOMEM;
- read_lock_irq(&zfcp_data.config_lock);
- if (zfcp_get_port_by_wwpn(adapter, wwpn)) {
- read_unlock_irq(&zfcp_data.config_lock);
- return ERR_PTR(-EINVAL);
+ kref_get(&adapter->ref);
+
+ port = zfcp_get_port_by_wwpn(adapter, wwpn);
+ if (port) {
+ put_device(&port->sysfs_device);
+ retval = -EEXIST;
+ goto err_out;
}
- read_unlock_irq(&zfcp_data.config_lock);
port = kzalloc(sizeof(struct zfcp_port), GFP_KERNEL);
if (!port)
- return ERR_PTR(-ENOMEM);
+ goto err_out;
+
+ rwlock_init(&port->unit_list_lock);
+ INIT_LIST_HEAD(&port->unit_list);
- init_waitqueue_head(&port->remove_wq);
- INIT_LIST_HEAD(&port->unit_list_head);
INIT_WORK(&port->gid_pn_work, zfcp_fc_port_did_lookup);
INIT_WORK(&port->test_link_work, zfcp_fc_link_test_work);
INIT_WORK(&port->rport_work, zfcp_scsi_rport_work);
@@ -671,58 +689,38 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
port->d_id = d_id;
port->wwpn = wwpn;
port->rport_task = RPORT_NONE;
-
- /* mark port unusable as long as sysfs registration is not complete */
- atomic_set_mask(status | ZFCP_STATUS_COMMON_REMOVE, &port->status);
- atomic_set(&port->refcount, 0);
+ port->sysfs_device.parent = &adapter->ccw_device->dev;
+ port->sysfs_device.release = zfcp_port_release;
if (dev_set_name(&port->sysfs_device, "0x%016llx",
(unsigned long long)wwpn)) {
kfree(port);
- return ERR_PTR(-ENOMEM);
+ goto err_out;
}
- port->sysfs_device.parent = &adapter->ccw_device->dev;
- port->sysfs_device.release = zfcp_sysfs_port_release;
- dev_set_drvdata(&port->sysfs_device, port);
+ retval = -EINVAL;
if (device_register(&port->sysfs_device)) {
put_device(&port->sysfs_device);
- return ERR_PTR(-EINVAL);
+ goto err_out;
}
if (sysfs_create_group(&port->sysfs_device.kobj,
- &zfcp_sysfs_port_attrs)) {
- device_unregister(&port->sysfs_device);
- return ERR_PTR(-EINVAL);
- }
+ &zfcp_sysfs_port_attrs))
+ goto err_out_put;
- zfcp_port_get(port);
+ write_lock_irq(&adapter->port_list_lock);
+ list_add_tail(&port->list, &adapter->port_list);
+ write_unlock_irq(&adapter->port_list_lock);
- write_lock_irq(&zfcp_data.config_lock);
- list_add_tail(&port->list, &adapter->port_list_head);
- atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &port->status);
- atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING, &port->status);
+ atomic_set_mask(status | ZFCP_STATUS_COMMON_RUNNING, &port->status);
- write_unlock_irq(&zfcp_data.config_lock);
-
- zfcp_adapter_get(adapter);
return port;
-}
-/**
- * zfcp_port_dequeue - dequeues a port from the port list of the adapter
- * @port: pointer to struct zfcp_port which should be removed
- */
-void zfcp_port_dequeue(struct zfcp_port *port)
-{
- write_lock_irq(&zfcp_data.config_lock);
- list_del(&port->list);
- write_unlock_irq(&zfcp_data.config_lock);
- wait_event(port->remove_wq, atomic_read(&port->refcount) == 0);
- cancel_work_sync(&port->rport_work); /* usually not necessary */
- zfcp_adapter_put(port->adapter);
- sysfs_remove_group(&port->sysfs_device.kobj, &zfcp_sysfs_port_attrs);
+err_out_put:
device_unregister(&port->sysfs_device);
+err_out:
+ zfcp_ccw_adapter_put(adapter);
+ return ERR_PTR(retval);
}
/**
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index e08339428ecf..c22cb72a5ae8 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -13,28 +13,34 @@
#define ZFCP_MODEL_PRIV 0x4
-static int zfcp_ccw_suspend(struct ccw_device *cdev)
+static DEFINE_SPINLOCK(zfcp_ccw_adapter_ref_lock);
+struct zfcp_adapter *zfcp_ccw_adapter_by_cdev(struct ccw_device *cdev)
{
- struct zfcp_adapter *adapter = dev_get_drvdata(&cdev->dev);
-
- if (!adapter)
- return 0;
-
- mutex_lock(&zfcp_data.config_mutex);
+ struct zfcp_adapter *adapter;
+ unsigned long flags;
- zfcp_erp_adapter_shutdown(adapter, 0, "ccsusp1", NULL);
- zfcp_erp_wait(adapter);
+ spin_lock_irqsave(&zfcp_ccw_adapter_ref_lock, flags);
+ adapter = dev_get_drvdata(&cdev->dev);
+ if (adapter)
+ kref_get(&adapter->ref);
+ spin_unlock_irqrestore(&zfcp_ccw_adapter_ref_lock, flags);
+ return adapter;
+}
- mutex_unlock(&zfcp_data.config_mutex);
+void zfcp_ccw_adapter_put(struct zfcp_adapter *adapter)
+{
+ unsigned long flags;
- return 0;
+ spin_lock_irqsave(&zfcp_ccw_adapter_ref_lock, flags);
+ kref_put(&adapter->ref, zfcp_adapter_release);
+ spin_unlock_irqrestore(&zfcp_ccw_adapter_ref_lock, flags);
}
static int zfcp_ccw_activate(struct ccw_device *cdev)
{
- struct zfcp_adapter *adapter = dev_get_drvdata(&cdev->dev);
+ struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
if (!adapter)
return 0;
@@ -46,6 +52,8 @@ static int zfcp_ccw_activate(struct ccw_device *cdev)
zfcp_erp_wait(adapter);
flush_work(&adapter->scan_work);
+ zfcp_ccw_adapter_put(adapter);
+
return 0;
}
@@ -67,28 +75,28 @@ int zfcp_ccw_priv_sch(struct zfcp_adapter *adapter)
/**
* zfcp_ccw_probe - probe function of zfcp driver
- * @ccw_device: pointer to belonging ccw device
+ * @cdev: pointer to belonging ccw device
*
* This function gets called by the common i/o layer for each FCP
* device found on the current system. This is only a stub to make cio
* work: To only allocate adapter resources for devices actually used,
* the allocation is deferred to the first call to ccw_set_online.
*/
-static int zfcp_ccw_probe(struct ccw_device *ccw_device)
+static int zfcp_ccw_probe(struct ccw_device *cdev)
{
return 0;
}
/**
* zfcp_ccw_remove - remove function of zfcp driver
- * @ccw_device: pointer to belonging ccw device
+ * @cdev: pointer to belonging ccw device
*
* This function gets called by the common i/o layer and removes an adapter
* from the system. Task of this function is to get rid of all units and
* ports that belong to this adapter. And in addition all resources of this
* adapter will be freed too.
*/
-static void zfcp_ccw_remove(struct ccw_device *ccw_device)
+static void zfcp_ccw_remove(struct ccw_device *cdev)
{
struct zfcp_adapter *adapter;
struct zfcp_port *port, *p;
@@ -96,49 +104,37 @@ static void zfcp_ccw_remove(struct ccw_device *ccw_device)
LIST_HEAD(unit_remove_lh);
LIST_HEAD(port_remove_lh);
- ccw_device_set_offline(ccw_device);
+ ccw_device_set_offline(cdev);
- mutex_lock(&zfcp_data.config_mutex);
- adapter = dev_get_drvdata(&ccw_device->dev);
+ adapter = zfcp_ccw_adapter_by_cdev(cdev);
if (!adapter)
- goto out;
- mutex_unlock(&zfcp_data.config_mutex);
+ return;
- cancel_work_sync(&adapter->scan_work);
-
- mutex_lock(&zfcp_data.config_mutex);
-
- /* this also removes the scsi devices, so call it first */
- zfcp_adapter_scsi_unregister(adapter);
-
- write_lock_irq(&zfcp_data.config_lock);
- list_for_each_entry_safe(port, p, &adapter->port_list_head, list) {
- list_for_each_entry_safe(unit, u, &port->unit_list_head, list) {
+ write_lock_irq(&adapter->port_list_lock);
+ list_for_each_entry_safe(port, p, &adapter->port_list, list) {
+ write_lock(&port->unit_list_lock);
+ list_for_each_entry_safe(unit, u, &port->unit_list, list)
list_move(&unit->list, &unit_remove_lh);
- atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE,
- &unit->status);
- }
+ write_unlock(&port->unit_list_lock);
list_move(&port->list, &port_remove_lh);
- atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &port->status);
}
- atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
- write_unlock_irq(&zfcp_data.config_lock);
+ write_unlock_irq(&adapter->port_list_lock);
+ zfcp_ccw_adapter_put(adapter); /* put from zfcp_ccw_adapter_by_cdev */
- list_for_each_entry_safe(port, p, &port_remove_lh, list) {
- list_for_each_entry_safe(unit, u, &unit_remove_lh, list)
- zfcp_unit_dequeue(unit);
- zfcp_port_dequeue(port);
- }
- wait_event(adapter->remove_wq, atomic_read(&adapter->refcount) == 0);
- zfcp_adapter_dequeue(adapter);
+ list_for_each_entry_safe(unit, u, &unit_remove_lh, list)
+ zfcp_device_unregister(&unit->sysfs_device,
+ &zfcp_sysfs_unit_attrs);
-out:
- mutex_unlock(&zfcp_data.config_mutex);
+ list_for_each_entry_safe(port, p, &port_remove_lh, list)
+ zfcp_device_unregister(&port->sysfs_device,
+ &zfcp_sysfs_port_attrs);
+
+ zfcp_adapter_unregister(adapter);
}
/**
* zfcp_ccw_set_online - set_online function of zfcp driver
- * @ccw_device: pointer to belonging ccw device
+ * @cdev: pointer to belonging ccw device
*
* This function gets called by the common i/o layer and sets an
* adapter into state online. The first call will allocate all
@@ -149,23 +145,20 @@ out:
* the SCSI stack, that the QDIO queues will be set up and that the
* adapter will be opened.
*/
-static int zfcp_ccw_set_online(struct ccw_device *ccw_device)
+static int zfcp_ccw_set_online(struct ccw_device *cdev)
{
- struct zfcp_adapter *adapter;
- int ret = 0;
-
- mutex_lock(&zfcp_data.config_mutex);
- adapter = dev_get_drvdata(&ccw_device->dev);
+ struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
if (!adapter) {
- ret = zfcp_adapter_enqueue(ccw_device);
- if (ret) {
- dev_err(&ccw_device->dev,
+ adapter = zfcp_adapter_enqueue(cdev);
+
+ if (IS_ERR(adapter)) {
+ dev_err(&cdev->dev,
"Setting up data structures for the "
"FCP adapter failed\n");
- goto out;
+ return PTR_ERR(adapter);
}
- adapter = dev_get_drvdata(&ccw_device->dev);
+ kref_get(&adapter->ref);
}
/* initialize request counter */
@@ -177,58 +170,61 @@ static int zfcp_ccw_set_online(struct ccw_device *ccw_device)
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
"ccsonl2", NULL);
zfcp_erp_wait(adapter);
-out:
- mutex_unlock(&zfcp_data.config_mutex);
- if (!ret)
- flush_work(&adapter->scan_work);
- return ret;
+
+ flush_work(&adapter->scan_work);
+
+ zfcp_ccw_adapter_put(adapter);
+ return 0;
}
/**
* zfcp_ccw_set_offline - set_offline function of zfcp driver
- * @ccw_device: pointer to belonging ccw device
+ * @cdev: pointer to belonging ccw device
*
* This function gets called by the common i/o layer and sets an adapter
* into state offline.
*/
-static int zfcp_ccw_set_offline(struct ccw_device *ccw_device)
+static int zfcp_ccw_set_offline(struct ccw_device *cdev)
{
- struct zfcp_adapter *adapter;
+ struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
+
+ if (!adapter)
+ return 0;
- mutex_lock(&zfcp_data.config_mutex);
- adapter = dev_get_drvdata(&ccw_device->dev);
zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1", NULL);
zfcp_erp_wait(adapter);
- mutex_unlock(&zfcp_data.config_mutex);
+
+ zfcp_ccw_adapter_put(adapter);
return 0;
}
/**
* zfcp_ccw_notify - ccw notify function
- * @ccw_device: pointer to belonging ccw device
+ * @cdev: pointer to belonging ccw device
* @event: indicates if adapter was detached or attached
*
* This function gets called by the common i/o layer if an adapter has gone
* or reappeared.
*/
-static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event)
+static int zfcp_ccw_notify(struct ccw_device *cdev, int event)
{
- struct zfcp_adapter *adapter = dev_get_drvdata(&ccw_device->dev);
+ struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
+
+ if (!adapter)
+ return 1;
switch (event) {
case CIO_GONE:
- dev_warn(&adapter->ccw_device->dev,
- "The FCP device has been detached\n");
+ dev_warn(&cdev->dev, "The FCP device has been detached\n");
zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti1", NULL);
break;
case CIO_NO_PATH:
- dev_warn(&adapter->ccw_device->dev,
+ dev_warn(&cdev->dev,
"The CHPID for the FCP device is offline\n");
zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti2", NULL);
break;
case CIO_OPER:
- dev_info(&adapter->ccw_device->dev,
- "The FCP device is operational again\n");
+ dev_info(&cdev->dev, "The FCP device is operational again\n");
zfcp_erp_modify_adapter_status(adapter, "ccnoti3", NULL,
ZFCP_STATUS_COMMON_RUNNING,
ZFCP_SET);
@@ -236,11 +232,13 @@ static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event)
"ccnoti4", NULL);
break;
case CIO_BOXED:
- dev_warn(&adapter->ccw_device->dev, "The FCP device "
- "did not respond within the specified time\n");
+ dev_warn(&cdev->dev, "The FCP device did not respond within "
+ "the specified time\n");
zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti5", NULL);
break;
}
+
+ zfcp_ccw_adapter_put(adapter);
return 1;
}
@@ -250,18 +248,16 @@ static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event)
*/
static void zfcp_ccw_shutdown(struct ccw_device *cdev)
{
- struct zfcp_adapter *adapter;
+ struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
- mutex_lock(&zfcp_data.config_mutex);
- adapter = dev_get_drvdata(&cdev->dev);
if (!adapter)
- goto out;
+ return;
zfcp_erp_adapter_shutdown(adapter, 0, "ccshut1", NULL);
zfcp_erp_wait(adapter);
zfcp_erp_thread_kill(adapter);
-out:
- mutex_unlock(&zfcp_data.config_mutex);
+
+ zfcp_ccw_adapter_put(adapter);
}
struct ccw_driver zfcp_ccw_driver = {
@@ -274,18 +270,7 @@ struct ccw_driver zfcp_ccw_driver = {
.set_offline = zfcp_ccw_set_offline,
.notify = zfcp_ccw_notify,
.shutdown = zfcp_ccw_shutdown,
- .freeze = zfcp_ccw_suspend,
+ .freeze = zfcp_ccw_set_offline,
.thaw = zfcp_ccw_activate,
.restore = zfcp_ccw_activate,
};
-
-/**
- * zfcp_ccw_register - ccw register function
- *
- * Registers the driver at the common i/o layer. This function will be called
- * at module load time/system start.
- */
-int __init zfcp_ccw_register(void)
-{
- return ccw_driver_register(&zfcp_ccw_driver);
-}
diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c
index ef681dfed0cc..f932400e980a 100644
--- a/drivers/s390/scsi/zfcp_cfdc.c
+++ b/drivers/s390/scsi/zfcp_cfdc.c
@@ -86,22 +86,17 @@ static int zfcp_cfdc_copy_to_user(void __user *user_buffer,
static struct zfcp_adapter *zfcp_cfdc_get_adapter(u32 devno)
{
char busid[9];
- struct ccw_device *ccwdev;
- struct zfcp_adapter *adapter = NULL;
+ struct ccw_device *cdev;
+ struct zfcp_adapter *adapter;
snprintf(busid, sizeof(busid), "0.0.%04x", devno);
- ccwdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
- if (!ccwdev)
- goto out;
-
- adapter = dev_get_drvdata(&ccwdev->dev);
- if (!adapter)
- goto out_put;
-
- zfcp_adapter_get(adapter);
-out_put:
- put_device(&ccwdev->dev);
-out:
+ cdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
+ if (!cdev)
+ return NULL;
+
+ adapter = zfcp_ccw_adapter_by_cdev(cdev);
+
+ put_device(&cdev->dev);
return adapter;
}
@@ -212,7 +207,6 @@ static long zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command,
retval = -ENXIO;
goto free_buffer;
}
- zfcp_adapter_get(adapter);
retval = zfcp_cfdc_sg_setup(data->command, fsf_cfdc->sg,
data_user->control_file);
@@ -245,7 +239,7 @@ static long zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command,
free_sg:
zfcp_sg_free_table(fsf_cfdc->sg, ZFCP_CFDC_PAGES);
adapter_put:
- zfcp_adapter_put(adapter);
+ zfcp_ccw_adapter_put(adapter);
free_buffer:
kfree(data);
no_mem_sense:
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 215b70749e95..84450955ae11 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -13,6 +13,7 @@
#include <asm/debug.h>
#include "zfcp_dbf.h"
#include "zfcp_ext.h"
+#include "zfcp_fc.h"
static u32 dbfsize = 4;
@@ -177,8 +178,7 @@ void _zfcp_dbf_hba_fsf_response(const char *tag2, int level,
case FSF_QTCB_SEND_ELS:
send_els = (struct zfcp_send_els *)fsf_req->data;
- response->u.els.d_id = qtcb->bottom.support.d_id;
- response->u.els.ls_code = send_els->ls_code >> 24;
+ response->u.els.d_id = ntoh24(qtcb->bottom.support.d_id);
break;
case FSF_QTCB_ABORT_FCP_CMND:
@@ -348,7 +348,6 @@ static void zfcp_dbf_hba_view_response(char **p,
case FSF_QTCB_SEND_ELS:
zfcp_dbf_out(p, "d_id", "0x%06x", r->u.els.d_id);
- zfcp_dbf_out(p, "ls_code", "0x%02x", r->u.els.ls_code);
break;
case FSF_QTCB_ABORT_FCP_CMND:
@@ -677,14 +676,14 @@ void zfcp_dbf_rec_action(char *id2, struct zfcp_erp_action *erp_action)
/**
* zfcp_dbf_san_ct_request - trace event for issued CT request
* @fsf_req: request containing issued CT data
+ * @d_id: destination id where ct request is sent to
*/
-void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *fsf_req)
+void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *fsf_req, u32 d_id)
{
- struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
- struct zfcp_wka_port *wka_port = ct->wka_port;
- struct zfcp_adapter *adapter = wka_port->adapter;
+ struct zfcp_fsf_ct_els *ct = (struct zfcp_fsf_ct_els *)fsf_req->data;
+ struct zfcp_adapter *adapter = fsf_req->adapter;
struct zfcp_dbf *dbf = adapter->dbf;
- struct ct_hdr *hdr = sg_virt(ct->req);
+ struct fc_ct_hdr *hdr = sg_virt(ct->req);
struct zfcp_dbf_san_record *r = &dbf->san_buf;
struct zfcp_dbf_san_record_ct_request *oct = &r->u.ct_req;
int level = 3;
@@ -695,19 +694,18 @@ void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *fsf_req)
strncpy(r->tag, "octc", ZFCP_DBF_TAG_SIZE);
r->fsf_reqid = fsf_req->req_id;
r->fsf_seqno = fsf_req->seq_no;
- r->s_id = fc_host_port_id(adapter->scsi_host);
- r->d_id = wka_port->d_id;
- oct->cmd_req_code = hdr->cmd_rsp_code;
- oct->revision = hdr->revision;
- oct->gs_type = hdr->gs_type;
- oct->gs_subtype = hdr->gs_subtype;
- oct->options = hdr->options;
- oct->max_res_size = hdr->max_res_size;
- oct->len = min((int)ct->req->length - (int)sizeof(struct ct_hdr),
+ oct->d_id = d_id;
+ oct->cmd_req_code = hdr->ct_cmd;
+ oct->revision = hdr->ct_rev;
+ oct->gs_type = hdr->ct_fs_type;
+ oct->gs_subtype = hdr->ct_fs_subtype;
+ oct->options = hdr->ct_options;
+ oct->max_res_size = hdr->ct_mr_size;
+ oct->len = min((int)ct->req->length - (int)sizeof(struct fc_ct_hdr),
ZFCP_DBF_SAN_MAX_PAYLOAD);
debug_event(dbf->san, level, r, sizeof(*r));
zfcp_dbf_hexdump(dbf->san, r, sizeof(*r), level,
- (void *)hdr + sizeof(struct ct_hdr), oct->len);
+ (void *)hdr + sizeof(struct fc_ct_hdr), oct->len);
spin_unlock_irqrestore(&dbf->san_lock, flags);
}
@@ -717,10 +715,9 @@ void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *fsf_req)
*/
void zfcp_dbf_san_ct_response(struct zfcp_fsf_req *fsf_req)
{
- struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
- struct zfcp_wka_port *wka_port = ct->wka_port;
- struct zfcp_adapter *adapter = wka_port->adapter;
- struct ct_hdr *hdr = sg_virt(ct->resp);
+ struct zfcp_fsf_ct_els *ct = (struct zfcp_fsf_ct_els *)fsf_req->data;
+ struct zfcp_adapter *adapter = fsf_req->adapter;
+ struct fc_ct_hdr *hdr = sg_virt(ct->resp);
struct zfcp_dbf *dbf = adapter->dbf;
struct zfcp_dbf_san_record *r = &dbf->san_buf;
struct zfcp_dbf_san_record_ct_response *rct = &r->u.ct_resp;
@@ -732,25 +729,23 @@ void zfcp_dbf_san_ct_response(struct zfcp_fsf_req *fsf_req)
strncpy(r->tag, "rctc", ZFCP_DBF_TAG_SIZE);
r->fsf_reqid = fsf_req->req_id;
r->fsf_seqno = fsf_req->seq_no;
- r->s_id = wka_port->d_id;
- r->d_id = fc_host_port_id(adapter->scsi_host);
- rct->cmd_rsp_code = hdr->cmd_rsp_code;
- rct->revision = hdr->revision;
- rct->reason_code = hdr->reason_code;
- rct->expl = hdr->reason_code_expl;
- rct->vendor_unique = hdr->vendor_unique;
- rct->max_res_size = hdr->max_res_size;
- rct->len = min((int)ct->resp->length - (int)sizeof(struct ct_hdr),
+ rct->cmd_rsp_code = hdr->ct_cmd;
+ rct->revision = hdr->ct_rev;
+ rct->reason_code = hdr->ct_reason;
+ rct->expl = hdr->ct_explan;
+ rct->vendor_unique = hdr->ct_vendor;
+ rct->max_res_size = hdr->ct_mr_size;
+ rct->len = min((int)ct->resp->length - (int)sizeof(struct fc_ct_hdr),
ZFCP_DBF_SAN_MAX_PAYLOAD);
debug_event(dbf->san, level, r, sizeof(*r));
zfcp_dbf_hexdump(dbf->san, r, sizeof(*r), level,
- (void *)hdr + sizeof(struct ct_hdr), rct->len);
+ (void *)hdr + sizeof(struct fc_ct_hdr), rct->len);
spin_unlock_irqrestore(&dbf->san_lock, flags);
}
static void zfcp_dbf_san_els(const char *tag, int level,
- struct zfcp_fsf_req *fsf_req, u32 s_id, u32 d_id,
- u8 ls_code, void *buffer, int buflen)
+ struct zfcp_fsf_req *fsf_req, u32 d_id,
+ void *buffer, int buflen)
{
struct zfcp_adapter *adapter = fsf_req->adapter;
struct zfcp_dbf *dbf = adapter->dbf;
@@ -762,9 +757,7 @@ static void zfcp_dbf_san_els(const char *tag, int level,
strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
rec->fsf_reqid = fsf_req->req_id;
rec->fsf_seqno = fsf_req->seq_no;
- rec->s_id = s_id;
- rec->d_id = d_id;
- rec->u.els.ls_code = ls_code;
+ rec->u.els.d_id = d_id;
debug_event(dbf->san, level, rec, sizeof(*rec));
zfcp_dbf_hexdump(dbf->san, rec, sizeof(*rec), level,
buffer, min(buflen, ZFCP_DBF_SAN_MAX_PAYLOAD));
@@ -777,12 +770,11 @@ static void zfcp_dbf_san_els(const char *tag, int level,
*/
void zfcp_dbf_san_els_request(struct zfcp_fsf_req *fsf_req)
{
- struct zfcp_send_els *els = (struct zfcp_send_els *)fsf_req->data;
+ struct zfcp_fsf_ct_els *els = (struct zfcp_fsf_ct_els *)fsf_req->data;
+ u32 d_id = ntoh24(fsf_req->qtcb->bottom.support.d_id);
- zfcp_dbf_san_els("oels", 2, fsf_req,
- fc_host_port_id(els->adapter->scsi_host),
- els->d_id, *(u8 *) sg_virt(els->req),
- sg_virt(els->req), els->req->length);
+ zfcp_dbf_san_els("oels", 2, fsf_req, d_id,
+ sg_virt(els->req), els->req->length);
}
/**
@@ -791,12 +783,11 @@ void zfcp_dbf_san_els_request(struct zfcp_fsf_req *fsf_req)
*/
void zfcp_dbf_san_els_response(struct zfcp_fsf_req *fsf_req)
{
- struct zfcp_send_els *els = (struct zfcp_send_els *)fsf_req->data;
+ struct zfcp_fsf_ct_els *els = (struct zfcp_fsf_ct_els *)fsf_req->data;
+ u32 d_id = ntoh24(fsf_req->qtcb->bottom.support.d_id);
- zfcp_dbf_san_els("rels", 2, fsf_req, els->d_id,
- fc_host_port_id(els->adapter->scsi_host),
- *(u8 *)sg_virt(els->req), sg_virt(els->resp),
- els->resp->length);
+ zfcp_dbf_san_els("rels", 2, fsf_req, d_id,
+ sg_virt(els->resp), els->resp->length);
}
/**
@@ -805,16 +796,13 @@ void zfcp_dbf_san_els_response(struct zfcp_fsf_req *fsf_req)
*/
void zfcp_dbf_san_incoming_els(struct zfcp_fsf_req *fsf_req)
{
- struct zfcp_adapter *adapter = fsf_req->adapter;
struct fsf_status_read_buffer *buf =
(struct fsf_status_read_buffer *)fsf_req->data;
int length = (int)buf->length -
(int)((void *)&buf->payload - (void *)buf);
- zfcp_dbf_san_els("iels", 1, fsf_req, buf->d_id,
- fc_host_port_id(adapter->scsi_host),
- buf->payload.data[0], (void *)buf->payload.data,
- length);
+ zfcp_dbf_san_els("iels", 1, fsf_req, ntoh24(buf->d_id),
+ (void *)buf->payload.data, length);
}
static int zfcp_dbf_san_view_format(debug_info_t *id, struct debug_view *view,
@@ -829,11 +817,10 @@ static int zfcp_dbf_san_view_format(debug_info_t *id, struct debug_view *view,
zfcp_dbf_tag(&p, "tag", r->tag);
zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno);
- zfcp_dbf_out(&p, "s_id", "0x%06x", r->s_id);
- zfcp_dbf_out(&p, "d_id", "0x%06x", r->d_id);
if (strncmp(r->tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
struct zfcp_dbf_san_record_ct_request *ct = &r->u.ct_req;
+ zfcp_dbf_out(&p, "d_id", "0x%06x", ct->d_id);
zfcp_dbf_out(&p, "cmd_req_code", "0x%04x", ct->cmd_req_code);
zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
zfcp_dbf_out(&p, "gs_type", "0x%02x", ct->gs_type);
@@ -852,7 +839,7 @@ static int zfcp_dbf_san_view_format(debug_info_t *id, struct debug_view *view,
strncmp(r->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 ||
strncmp(r->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) {
struct zfcp_dbf_san_record_els *els = &r->u.els;
- zfcp_dbf_out(&p, "ls_code", "0x%02x", els->ls_code);
+ zfcp_dbf_out(&p, "d_id", "0x%06x", els->d_id);
}
return p - out_buf;
}
@@ -870,8 +857,9 @@ void _zfcp_dbf_scsi(const char *tag, const char *tag2, int level,
struct zfcp_dbf_scsi_record *rec = &dbf->scsi_buf;
struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec;
unsigned long flags;
- struct fcp_rsp_iu *fcp_rsp;
- char *fcp_rsp_info = NULL, *fcp_sns_info = NULL;
+ struct fcp_resp_with_ext *fcp_rsp;
+ struct fcp_resp_rsp_info *fcp_rsp_info = NULL;
+ char *fcp_sns_info = NULL;
int offset = 0, buflen = 0;
spin_lock_irqsave(&dbf->scsi_lock, flags);
@@ -895,20 +883,22 @@ void _zfcp_dbf_scsi(const char *tag, const char *tag2, int level,
rec->scsi_allowed = scsi_cmnd->allowed;
}
if (fsf_req != NULL) {
- fcp_rsp = (struct fcp_rsp_iu *)
- &(fsf_req->qtcb->bottom.io.fcp_rsp);
- fcp_rsp_info = (unsigned char *) &fcp_rsp[1];
- fcp_sns_info =
- zfcp_get_fcp_sns_info_ptr(fcp_rsp);
-
- rec->rsp_validity = fcp_rsp->validity.value;
- rec->rsp_scsi_status = fcp_rsp->scsi_status;
- rec->rsp_resid = fcp_rsp->fcp_resid;
- if (fcp_rsp->validity.bits.fcp_rsp_len_valid)
- rec->rsp_code = *(fcp_rsp_info + 3);
- if (fcp_rsp->validity.bits.fcp_sns_len_valid) {
- buflen = min((int)fcp_rsp->fcp_sns_len,
- ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO);
+ fcp_rsp = (struct fcp_resp_with_ext *)
+ &(fsf_req->qtcb->bottom.io.fcp_rsp);
+ fcp_rsp_info = (struct fcp_resp_rsp_info *)
+ &fcp_rsp[1];
+ fcp_sns_info = (char *) &fcp_rsp[1];
+ if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL)
+ fcp_sns_info += fcp_rsp->ext.fr_sns_len;
+
+ rec->rsp_validity = fcp_rsp->resp.fr_flags;
+ rec->rsp_scsi_status = fcp_rsp->resp.fr_status;
+ rec->rsp_resid = fcp_rsp->ext.fr_resid;
+ if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL)
+ rec->rsp_code = fcp_rsp_info->rsp_code;
+ if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) {
+ buflen = min(fcp_rsp->ext.fr_sns_len,
+ (u32)ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO);
rec->sns_info_len = buflen;
memcpy(rec->sns_info, fcp_sns_info,
min(buflen,
@@ -1067,6 +1057,8 @@ err_out:
*/
void zfcp_dbf_adapter_unregister(struct zfcp_dbf *dbf)
{
+ if (!dbf)
+ return;
debug_unregister(dbf->scsi);
debug_unregister(dbf->san);
debug_unregister(dbf->hba);
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h
index 6b1461e8f847..8b7fd9a1033e 100644
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -22,6 +22,7 @@
#ifndef ZFCP_DBF_H
#define ZFCP_DBF_H
+#include <scsi/fc/fc_fcp.h>
#include "zfcp_ext.h"
#include "zfcp_fsf.h"
#include "zfcp_def.h"
@@ -122,7 +123,6 @@ struct zfcp_dbf_hba_record_response {
} unit;
struct {
u32 d_id;
- u8 ls_code;
} els;
} u;
} __attribute__ ((packed));
@@ -166,6 +166,7 @@ struct zfcp_dbf_san_record_ct_request {
u8 options;
u16 max_res_size;
u32 len;
+ u32 d_id;
} __attribute__ ((packed));
struct zfcp_dbf_san_record_ct_response {
@@ -179,16 +180,13 @@ struct zfcp_dbf_san_record_ct_response {
} __attribute__ ((packed));
struct zfcp_dbf_san_record_els {
- u8 ls_code;
- u32 len;
+ u32 d_id;
} __attribute__ ((packed));
struct zfcp_dbf_san_record {
u8 tag[ZFCP_DBF_TAG_SIZE];
u64 fsf_reqid;
u32 fsf_seqno;
- u32 s_id;
- u32 d_id;
union {
struct zfcp_dbf_san_record_ct_request ct_req;
struct zfcp_dbf_san_record_ct_response ct_resp;
@@ -343,7 +341,7 @@ static inline
void zfcp_dbf_scsi_devreset(const char *tag, u8 flag, struct zfcp_unit *unit,
struct scsi_cmnd *scsi_cmnd)
{
- zfcp_dbf_scsi(flag == FCP_TARGET_RESET ? "trst" : "lrst", tag, 1,
+ zfcp_dbf_scsi(flag == FCP_TMF_TGT_RESET ? "trst" : "lrst", tag, 1,
unit->port->adapter->dbf, scsi_cmnd, NULL, 0);
}
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 7da2fad8f515..e1b5b88e2ddb 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -71,131 +71,6 @@
/* timeout value for "default timer" for fsf requests */
#define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ)
-/*************** FIBRE CHANNEL PROTOCOL SPECIFIC DEFINES ********************/
-
-/* task attribute values in FCP-2 FCP_CMND IU */
-#define SIMPLE_Q 0
-#define HEAD_OF_Q 1
-#define ORDERED_Q 2
-#define ACA_Q 4
-#define UNTAGGED 5
-
-/* task management flags in FCP-2 FCP_CMND IU */
-#define FCP_CLEAR_ACA 0x40
-#define FCP_TARGET_RESET 0x20
-#define FCP_LOGICAL_UNIT_RESET 0x10
-#define FCP_CLEAR_TASK_SET 0x04
-#define FCP_ABORT_TASK_SET 0x02
-
-#define FCP_CDB_LENGTH 16
-
-#define ZFCP_DID_MASK 0x00FFFFFF
-
-/* FCP(-2) FCP_CMND IU */
-struct fcp_cmnd_iu {
- u64 fcp_lun; /* FCP logical unit number */
- u8 crn; /* command reference number */
- u8 reserved0:5; /* reserved */
- u8 task_attribute:3; /* task attribute */
- u8 task_management_flags; /* task management flags */
- u8 add_fcp_cdb_length:6; /* additional FCP_CDB length */
- u8 rddata:1; /* read data */
- u8 wddata:1; /* write data */
- u8 fcp_cdb[FCP_CDB_LENGTH];
-} __attribute__((packed));
-
-/* FCP(-2) FCP_RSP IU */
-struct fcp_rsp_iu {
- u8 reserved0[10];
- union {
- struct {
- u8 reserved1:3;
- u8 fcp_conf_req:1;
- u8 fcp_resid_under:1;
- u8 fcp_resid_over:1;
- u8 fcp_sns_len_valid:1;
- u8 fcp_rsp_len_valid:1;
- } bits;
- u8 value;
- } validity;
- u8 scsi_status;
- u32 fcp_resid;
- u32 fcp_sns_len;
- u32 fcp_rsp_len;
-} __attribute__((packed));
-
-
-#define RSP_CODE_GOOD 0
-#define RSP_CODE_LENGTH_MISMATCH 1
-#define RSP_CODE_FIELD_INVALID 2
-#define RSP_CODE_RO_MISMATCH 3
-#define RSP_CODE_TASKMAN_UNSUPP 4
-#define RSP_CODE_TASKMAN_FAILED 5
-
-/* see fc-fs */
-#define LS_RSCN 0x61
-#define LS_LOGO 0x05
-#define LS_PLOGI 0x03
-
-struct fcp_rscn_head {
- u8 command;
- u8 page_length; /* always 0x04 */
- u16 payload_len;
-} __attribute__((packed));
-
-struct fcp_rscn_element {
- u8 reserved:2;
- u8 event_qual:4;
- u8 addr_format:2;
- u32 nport_did:24;
-} __attribute__((packed));
-
-/* see fc-ph */
-struct fcp_logo {
- u32 command;
- u32 nport_did;
- u64 nport_wwpn;
-} __attribute__((packed));
-
-/*
- * FC-FS stuff
- */
-#define R_A_TOV 10 /* seconds */
-
-#define ZFCP_LS_RLS 0x0f
-#define ZFCP_LS_ADISC 0x52
-#define ZFCP_LS_RPS 0x56
-#define ZFCP_LS_RSCN 0x61
-#define ZFCP_LS_RNID 0x78
-
-struct zfcp_ls_adisc {
- u8 code;
- u8 field[3];
- u32 hard_nport_id;
- u64 wwpn;
- u64 wwnn;
- u32 nport_id;
-} __attribute__ ((packed));
-
-/*
- * FC-GS-2 stuff
- */
-#define ZFCP_CT_REVISION 0x01
-#define ZFCP_CT_DIRECTORY_SERVICE 0xFC
-#define ZFCP_CT_NAME_SERVER 0x02
-#define ZFCP_CT_SYNCHRONOUS 0x00
-#define ZFCP_CT_SCSI_FCP 0x08
-#define ZFCP_CT_UNABLE_TO_PERFORM_CMD 0x09
-#define ZFCP_CT_GID_PN 0x0121
-#define ZFCP_CT_GPN_FT 0x0172
-#define ZFCP_CT_ACCEPT 0x8002
-#define ZFCP_CT_REJECT 0x8001
-
-/*
- * FC-GS-4 stuff
- */
-#define ZFCP_CT_TIMEOUT (3 * R_A_TOV)
-
/*************** ADAPTER/PORT/UNIT AND FSF_REQ STATUS FLAGS ******************/
/*
@@ -205,7 +80,6 @@ struct zfcp_ls_adisc {
#define ZFCP_COMMON_FLAGS 0xfff00000
/* common status bits */
-#define ZFCP_STATUS_COMMON_REMOVE 0x80000000
#define ZFCP_STATUS_COMMON_RUNNING 0x40000000
#define ZFCP_STATUS_COMMON_ERP_FAILED 0x20000000
#define ZFCP_STATUS_COMMON_UNBLOCKED 0x10000000
@@ -222,21 +96,10 @@ struct zfcp_ls_adisc {
#define ZFCP_STATUS_ADAPTER_ERP_PENDING 0x00000100
#define ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED 0x00000200
-/* FC-PH/FC-GS well-known address identifiers for generic services */
-#define ZFCP_DID_WKA 0xFFFFF0
-
/* remote port status */
#define ZFCP_STATUS_PORT_PHYS_OPEN 0x00000001
#define ZFCP_STATUS_PORT_LINK_TEST 0x00000002
-/* well known address (WKA) port status*/
-enum zfcp_wka_status {
- ZFCP_WKA_PORT_OFFLINE,
- ZFCP_WKA_PORT_CLOSING,
- ZFCP_WKA_PORT_OPENING,
- ZFCP_WKA_PORT_ONLINE,
-};
-
/* logical unit status */
#define ZFCP_STATUS_UNIT_SHARED 0x00000004
#define ZFCP_STATUS_UNIT_READONLY 0x00000008
@@ -247,10 +110,7 @@ enum zfcp_wka_status {
#define ZFCP_STATUS_FSFREQ_CLEANUP 0x00000010
#define ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED 0x00000040
#define ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED 0x00000080
-#define ZFCP_STATUS_FSFREQ_ABORTED 0x00000100
#define ZFCP_STATUS_FSFREQ_TMFUNCFAILED 0x00000200
-#define ZFCP_STATUS_FSFREQ_TMFUNCNOTSUPP 0x00000400
-#define ZFCP_STATUS_FSFREQ_RETRY 0x00000800
#define ZFCP_STATUS_FSFREQ_DISMISSED 0x00001000
/************************* STRUCTURE DEFINITIONS *****************************/
@@ -265,125 +125,10 @@ struct zfcp_adapter_mempool {
mempool_t *scsi_abort;
mempool_t *status_read_req;
mempool_t *status_read_data;
- mempool_t *gid_pn_data;
+ mempool_t *gid_pn;
mempool_t *qtcb_pool;
};
-/*
- * header for CT_IU
- */
-struct ct_hdr {
- u8 revision; // 0x01
- u8 in_id[3]; // 0x00
- u8 gs_type; // 0xFC Directory Service
- u8 gs_subtype; // 0x02 Name Server
- u8 options; // 0x00 single bidirectional exchange
- u8 reserved0;
- u16 cmd_rsp_code; // 0x0121 GID_PN, or 0x0100 GA_NXT
- u16 max_res_size; // <= (4096 - 16) / 4
- u8 reserved1;
- u8 reason_code;
- u8 reason_code_expl;
- u8 vendor_unique;
-} __attribute__ ((packed));
-
-/* nameserver request CT_IU -- for requests where
- * a port name is required */
-struct ct_iu_gid_pn_req {
- struct ct_hdr header;
- u64 wwpn;
-} __attribute__ ((packed));
-
-/* FS_ACC IU and data unit for GID_PN nameserver request */
-struct ct_iu_gid_pn_resp {
- struct ct_hdr header;
- u32 d_id;
-} __attribute__ ((packed));
-
-struct ct_iu_gpn_ft_req {
- struct ct_hdr header;
- u8 flags;
- u8 domain_id_scope;
- u8 area_id_scope;
- u8 fc4_type;
-} __attribute__ ((packed));
-
-
-/**
- * struct zfcp_send_ct - used to pass parameters to function zfcp_fsf_send_ct
- * @wka_port: port where the request is sent to
- * @req: scatter-gather list for request
- * @resp: scatter-gather list for response
- * @handler: handler function (called for response to the request)
- * @handler_data: data passed to handler function
- * @completion: completion for synchronization purposes
- * @status: used to pass error status to calling function
- */
-struct zfcp_send_ct {
- struct zfcp_wka_port *wka_port;
- struct scatterlist *req;
- struct scatterlist *resp;
- void (*handler)(unsigned long);
- unsigned long handler_data;
- struct completion *completion;
- int status;
-};
-
-/* used for name server requests in error recovery */
-struct zfcp_gid_pn_data {
- struct zfcp_send_ct ct;
- struct scatterlist req;
- struct scatterlist resp;
- struct ct_iu_gid_pn_req ct_iu_req;
- struct ct_iu_gid_pn_resp ct_iu_resp;
- struct zfcp_port *port;
-};
-
-/**
- * struct zfcp_send_els - used to pass parameters to function zfcp_fsf_send_els
- * @adapter: adapter where request is sent from
- * @port: port where ELS is destinated (port reference count has to be increased)
- * @d_id: destiniation id of port where request is sent to
- * @req: scatter-gather list for request
- * @resp: scatter-gather list for response
- * @handler: handler function (called for response to the request)
- * @handler_data: data passed to handler function
- * @completion: completion for synchronization purposes
- * @ls_code: hex code of ELS command
- * @status: used to pass error status to calling function
- */
-struct zfcp_send_els {
- struct zfcp_adapter *adapter;
- struct zfcp_port *port;
- u32 d_id;
- struct scatterlist *req;
- struct scatterlist *resp;
- void (*handler)(unsigned long);
- unsigned long handler_data;
- struct completion *completion;
- int ls_code;
- int status;
-};
-
-struct zfcp_wka_port {
- struct zfcp_adapter *adapter;
- wait_queue_head_t completion_wq;
- enum zfcp_wka_status status;
- atomic_t refcount;
- u32 d_id;
- u32 handle;
- struct mutex mutex;
- struct delayed_work work;
-};
-
-struct zfcp_wka_ports {
- struct zfcp_wka_port ms; /* management service */
- struct zfcp_wka_port ts; /* time service */
- struct zfcp_wka_port ds; /* directory service */
- struct zfcp_wka_port as; /* alias service */
- struct zfcp_wka_port ks; /* key distribution service */
-};
-
struct zfcp_qdio_queue {
struct qdio_buffer *sbal[QDIO_MAX_BUFFERS_PER_Q];
u8 first; /* index of next free bfr in queue */
@@ -446,9 +191,7 @@ struct zfcp_qdio {
};
struct zfcp_adapter {
- atomic_t refcount; /* reference count */
- wait_queue_head_t remove_wq; /* can be used to wait for
- refcount drop to zero */
+ struct kref ref;
u64 peer_wwnn; /* P2P peer WWNN */
u64 peer_wwpn; /* P2P peer WWPN */
u32 peer_d_id; /* P2P peer D_ID */
@@ -461,7 +204,8 @@ struct zfcp_adapter {
u32 hardware_version; /* of FCP channel */
u16 timer_ticks; /* time int for a tick */
struct Scsi_Host *scsi_host; /* Pointer to mid-layer */
- struct list_head port_list_head; /* remote port list */
+ struct list_head port_list; /* remote port list */
+ rwlock_t port_list_lock; /* port list lock */
unsigned long req_no; /* unique FSF req number */
struct list_head *req_list; /* list of pending reqs */
spinlock_t req_list_lock; /* request list lock */
@@ -485,7 +229,7 @@ struct zfcp_adapter {
u32 erp_low_mem_count; /* nr of erp actions waiting
for memory */
struct task_struct *erp_thread;
- struct zfcp_wka_ports *gs; /* generic services */
+ struct zfcp_fc_wka_ports *gs; /* generic services */
struct zfcp_dbf *dbf; /* debug traces */
struct zfcp_adapter_mempool pool; /* Adapter memory pools */
struct fc_host_statistics *fc_stats;
@@ -500,11 +244,9 @@ struct zfcp_port {
struct device sysfs_device; /* sysfs device */
struct fc_rport *rport; /* rport of fc transport class */
struct list_head list; /* list of remote ports */
- atomic_t refcount; /* reference count */
- wait_queue_head_t remove_wq; /* can be used to wait for
- refcount drop to zero */
struct zfcp_adapter *adapter; /* adapter used to access port */
- struct list_head unit_list_head; /* head of logical unit list */
+ struct list_head unit_list; /* head of logical unit list */
+ rwlock_t unit_list_lock; /* unit list lock */
atomic_t status; /* status of this remote port */
u64 wwnn; /* WWNN if known */
u64 wwpn; /* WWPN */
@@ -523,9 +265,6 @@ struct zfcp_port {
struct zfcp_unit {
struct device sysfs_device; /* sysfs device */
struct list_head list; /* list of logical units */
- atomic_t refcount; /* reference count */
- wait_queue_head_t remove_wq; /* can be used to wait for
- refcount drop to zero */
struct zfcp_port *port; /* remote port of unit */
atomic_t status; /* status of this logical unit */
u64 fcp_lun; /* own FCP_LUN */
@@ -601,14 +340,11 @@ struct zfcp_fsf_req {
struct zfcp_data {
struct scsi_host_template scsi_host_template;
struct scsi_transport_template *scsi_transport_template;
- rwlock_t config_lock; /* serialises changes
- to adapter/port/unit
- lists */
- struct mutex config_mutex;
struct kmem_cache *gpn_ft_cache;
struct kmem_cache *qtcb_cache;
struct kmem_cache *sr_buffer_cache;
struct kmem_cache *gid_pn_cache;
+ struct kmem_cache *adisc_cache;
};
/********************** ZFCP SPECIFIC DEFINES ********************************/
@@ -657,47 +393,4 @@ zfcp_reqlist_find_safe(struct zfcp_adapter *adapter, struct zfcp_fsf_req *req)
return NULL;
}
-/*
- * functions needed for reference/usage counting
- */
-
-static inline void
-zfcp_unit_get(struct zfcp_unit *unit)
-{
- atomic_inc(&unit->refcount);
-}
-
-static inline void
-zfcp_unit_put(struct zfcp_unit *unit)
-{
- if (atomic_dec_return(&unit->refcount) == 0)
- wake_up(&unit->remove_wq);
-}
-
-static inline void
-zfcp_port_get(struct zfcp_port *port)
-{
- atomic_inc(&port->refcount);
-}
-
-static inline void
-zfcp_port_put(struct zfcp_port *port)
-{
- if (atomic_dec_return(&port->refcount) == 0)
- wake_up(&port->remove_wq);
-}
-
-static inline void
-zfcp_adapter_get(struct zfcp_adapter *adapter)
-{
- atomic_inc(&adapter->refcount);
-}
-
-static inline void
-zfcp_adapter_put(struct zfcp_adapter *adapter)
-{
- if (atomic_dec_return(&adapter->refcount) == 0)
- wake_up(&adapter->remove_wq);
-}
-
#endif /* ZFCP_DEF_H */
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index f73e2180f333..b51a11a82e63 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -99,9 +99,12 @@ static void zfcp_erp_action_dismiss_port(struct zfcp_port *port)
if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_INUSE)
zfcp_erp_action_dismiss(&port->erp_action);
- else
- list_for_each_entry(unit, &port->unit_list_head, list)
- zfcp_erp_action_dismiss_unit(unit);
+ else {
+ read_lock(&port->unit_list_lock);
+ list_for_each_entry(unit, &port->unit_list, list)
+ zfcp_erp_action_dismiss_unit(unit);
+ read_unlock(&port->unit_list_lock);
+ }
}
static void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)
@@ -110,9 +113,12 @@ static void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)
if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_INUSE)
zfcp_erp_action_dismiss(&adapter->erp_action);
- else
- list_for_each_entry(port, &adapter->port_list_head, list)
+ else {
+ read_lock(&adapter->port_list_lock);
+ list_for_each_entry(port, &adapter->port_list, list)
zfcp_erp_action_dismiss_port(port);
+ read_unlock(&adapter->port_list_lock);
+ }
}
static int zfcp_erp_required_act(int want, struct zfcp_adapter *adapter,
@@ -168,7 +174,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need,
switch (need) {
case ZFCP_ERP_ACTION_REOPEN_UNIT:
- zfcp_unit_get(unit);
+ if (!get_device(&unit->sysfs_device))
+ return NULL;
atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &unit->status);
erp_action = &unit->erp_action;
if (!(atomic_read(&unit->status) & ZFCP_STATUS_COMMON_RUNNING))
@@ -177,7 +184,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need,
case ZFCP_ERP_ACTION_REOPEN_PORT:
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
- zfcp_port_get(port);
+ if (!get_device(&port->sysfs_device))
+ return NULL;
zfcp_erp_action_dismiss_port(port);
atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &port->status);
erp_action = &port->erp_action;
@@ -186,7 +194,7 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need,
break;
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
- zfcp_adapter_get(adapter);
+ kref_get(&adapter->ref);
zfcp_erp_action_dismiss_adapter(adapter);
atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &adapter->status);
erp_action = &adapter->erp_action;
@@ -264,11 +272,16 @@ void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear,
{
unsigned long flags;
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- write_lock(&adapter->erp_lock);
- _zfcp_erp_adapter_reopen(adapter, clear, id, ref);
- write_unlock(&adapter->erp_lock);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ zfcp_erp_adapter_block(adapter, clear);
+ zfcp_scsi_schedule_rports_block(adapter);
+
+ write_lock_irqsave(&adapter->erp_lock, flags);
+ if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED)
+ zfcp_erp_adapter_failed(adapter, "erareo1", NULL);
+ else
+ zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER, adapter,
+ NULL, NULL, id, ref);
+ write_unlock_irqrestore(&adapter->erp_lock, flags);
}
/**
@@ -345,11 +358,9 @@ void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, char *id,
unsigned long flags;
struct zfcp_adapter *adapter = port->adapter;
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- write_lock(&adapter->erp_lock);
+ write_lock_irqsave(&adapter->erp_lock, flags);
_zfcp_erp_port_forced_reopen(port, clear, id, ref);
- write_unlock(&adapter->erp_lock);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ write_unlock_irqrestore(&adapter->erp_lock, flags);
}
static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id,
@@ -377,15 +388,13 @@ static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id,
*/
int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id, void *ref)
{
- unsigned long flags;
int retval;
+ unsigned long flags;
struct zfcp_adapter *adapter = port->adapter;
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- write_lock(&adapter->erp_lock);
+ write_lock_irqsave(&adapter->erp_lock, flags);
retval = _zfcp_erp_port_reopen(port, clear, id, ref);
- write_unlock(&adapter->erp_lock);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ write_unlock_irqrestore(&adapter->erp_lock, flags);
return retval;
}
@@ -424,11 +433,9 @@ void zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, char *id,
struct zfcp_port *port = unit->port;
struct zfcp_adapter *adapter = port->adapter;
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- write_lock(&adapter->erp_lock);
+ write_lock_irqsave(&adapter->erp_lock, flags);
_zfcp_erp_unit_reopen(unit, clear, id, ref);
- write_unlock(&adapter->erp_lock);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ write_unlock_irqrestore(&adapter->erp_lock, flags);
}
static int status_change_set(unsigned long mask, atomic_t *status)
@@ -540,8 +547,10 @@ static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter,
{
struct zfcp_port *port;
- list_for_each_entry(port, &adapter->port_list_head, list)
+ read_lock(&adapter->port_list_lock);
+ list_for_each_entry(port, &adapter->port_list, list)
_zfcp_erp_port_reopen(port, clear, id, ref);
+ read_unlock(&adapter->port_list_lock);
}
static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear,
@@ -549,8 +558,10 @@ static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear,
{
struct zfcp_unit *unit;
- list_for_each_entry(unit, &port->unit_list_head, list)
+ read_lock(&port->unit_list_lock);
+ list_for_each_entry(unit, &port->unit_list, list)
_zfcp_erp_unit_reopen(unit, clear, id, ref);
+ read_unlock(&port->unit_list_lock);
}
static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act)
@@ -590,16 +601,14 @@ static void zfcp_erp_wakeup(struct zfcp_adapter *adapter)
{
unsigned long flags;
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- read_lock(&adapter->erp_lock);
+ read_lock_irqsave(&adapter->erp_lock, flags);
if (list_empty(&adapter->erp_ready_head) &&
list_empty(&adapter->erp_running_head)) {
atomic_clear_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING,
&adapter->status);
wake_up(&adapter->erp_done_wqh);
}
- read_unlock(&adapter->erp_lock);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ read_unlock_irqrestore(&adapter->erp_lock, flags);
}
static int zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *act)
@@ -1170,28 +1179,28 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
switch (act->action) {
case ZFCP_ERP_ACTION_REOPEN_UNIT:
if ((result == ZFCP_ERP_SUCCEEDED) && !unit->device) {
- zfcp_unit_get(unit);
+ get_device(&unit->sysfs_device);
if (scsi_queue_work(unit->port->adapter->scsi_host,
&unit->scsi_work) <= 0)
- zfcp_unit_put(unit);
+ put_device(&unit->sysfs_device);
}
- zfcp_unit_put(unit);
+ put_device(&unit->sysfs_device);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
case ZFCP_ERP_ACTION_REOPEN_PORT:
if (result == ZFCP_ERP_SUCCEEDED)
zfcp_scsi_schedule_rport_register(port);
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
break;
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
if (result == ZFCP_ERP_SUCCEEDED) {
register_service_level(&adapter->service_level);
- schedule_work(&adapter->scan_work);
+ queue_work(adapter->work_queue, &adapter->scan_work);
} else
unregister_service_level(&adapter->service_level);
- zfcp_adapter_put(adapter);
+ kref_put(&adapter->ref, zfcp_adapter_release);
break;
}
}
@@ -1214,12 +1223,12 @@ static int zfcp_erp_strategy_do_action(struct zfcp_erp_action *erp_action)
static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action)
{
int retval;
- struct zfcp_adapter *adapter = erp_action->adapter;
unsigned long flags;
+ struct zfcp_adapter *adapter = erp_action->adapter;
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- write_lock(&adapter->erp_lock);
+ kref_get(&adapter->ref);
+ write_lock_irqsave(&adapter->erp_lock, flags);
zfcp_erp_strategy_check_fsfreq(erp_action);
if (erp_action->status & ZFCP_STATUS_ERP_DISMISSED) {
@@ -1231,11 +1240,9 @@ static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action)
zfcp_erp_action_to_running(erp_action);
/* no lock to allow for blocking operations */
- write_unlock(&adapter->erp_lock);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ write_unlock_irqrestore(&adapter->erp_lock, flags);
retval = zfcp_erp_strategy_do_action(erp_action);
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- write_lock(&adapter->erp_lock);
+ write_lock_irqsave(&adapter->erp_lock, flags);
if (erp_action->status & ZFCP_STATUS_ERP_DISMISSED)
retval = ZFCP_ERP_CONTINUES;
@@ -1273,12 +1280,12 @@ static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action)
zfcp_erp_strategy_followup_failed(erp_action);
unlock:
- write_unlock(&adapter->erp_lock);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ write_unlock_irqrestore(&adapter->erp_lock, flags);
if (retval != ZFCP_ERP_CONTINUES)
zfcp_erp_action_cleanup(erp_action, retval);
+ kref_put(&adapter->ref, zfcp_adapter_release);
return retval;
}
@@ -1415,6 +1422,7 @@ void zfcp_erp_modify_adapter_status(struct zfcp_adapter *adapter, char *id,
void *ref, u32 mask, int set_or_clear)
{
struct zfcp_port *port;
+ unsigned long flags;
u32 common_mask = mask & ZFCP_COMMON_FLAGS;
if (set_or_clear == ZFCP_SET) {
@@ -1429,10 +1437,13 @@ void zfcp_erp_modify_adapter_status(struct zfcp_adapter *adapter, char *id,
atomic_set(&adapter->erp_counter, 0);
}
- if (common_mask)
- list_for_each_entry(port, &adapter->port_list_head, list)
+ if (common_mask) {
+ read_lock_irqsave(&adapter->port_list_lock, flags);
+ list_for_each_entry(port, &adapter->port_list, list)
zfcp_erp_modify_port_status(port, id, ref, common_mask,
set_or_clear);
+ read_unlock_irqrestore(&adapter->port_list_lock, flags);
+ }
}
/**
@@ -1449,6 +1460,7 @@ void zfcp_erp_modify_port_status(struct zfcp_port *port, char *id, void *ref,
u32 mask, int set_or_clear)
{
struct zfcp_unit *unit;
+ unsigned long flags;
u32 common_mask = mask & ZFCP_COMMON_FLAGS;
if (set_or_clear == ZFCP_SET) {
@@ -1463,10 +1475,13 @@ void zfcp_erp_modify_port_status(struct zfcp_port *port, char *id, void *ref,
atomic_set(&port->erp_counter, 0);
}
- if (common_mask)
- list_for_each_entry(unit, &port->unit_list_head, list)
+ if (common_mask) {
+ read_lock_irqsave(&port->unit_list_lock, flags);
+ list_for_each_entry(unit, &port->unit_list, list)
zfcp_erp_modify_unit_status(unit, id, ref, common_mask,
set_or_clear);
+ read_unlock_irqrestore(&port->unit_list_lock, flags);
+ }
}
/**
@@ -1502,12 +1517,8 @@ void zfcp_erp_modify_unit_status(struct zfcp_unit *unit, char *id, void *ref,
*/
void zfcp_erp_port_boxed(struct zfcp_port *port, char *id, void *ref)
{
- unsigned long flags;
-
- read_lock_irqsave(&zfcp_data.config_lock, flags);
zfcp_erp_modify_port_status(port, id, ref,
ZFCP_STATUS_COMMON_ACCESS_BOXED, ZFCP_SET);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, id, ref);
}
@@ -1535,13 +1546,9 @@ void zfcp_erp_unit_boxed(struct zfcp_unit *unit, char *id, void *ref)
*/
void zfcp_erp_port_access_denied(struct zfcp_port *port, char *id, void *ref)
{
- unsigned long flags;
-
- read_lock_irqsave(&zfcp_data.config_lock, flags);
zfcp_erp_modify_port_status(port, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED |
ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
/**
@@ -1574,12 +1581,15 @@ static void zfcp_erp_port_access_changed(struct zfcp_port *port, char *id,
void *ref)
{
struct zfcp_unit *unit;
+ unsigned long flags;
int status = atomic_read(&port->status);
if (!(status & (ZFCP_STATUS_COMMON_ACCESS_DENIED |
ZFCP_STATUS_COMMON_ACCESS_BOXED))) {
- list_for_each_entry(unit, &port->unit_list_head, list)
+ read_lock_irqsave(&port->unit_list_lock, flags);
+ list_for_each_entry(unit, &port->unit_list, list)
zfcp_erp_unit_access_changed(unit, id, ref);
+ read_unlock_irqrestore(&port->unit_list_lock, flags);
return;
}
@@ -1595,14 +1605,14 @@ static void zfcp_erp_port_access_changed(struct zfcp_port *port, char *id,
void zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter, char *id,
void *ref)
{
- struct zfcp_port *port;
unsigned long flags;
+ struct zfcp_port *port;
if (adapter->connection_features & FSF_FEATURE_NPIV_MODE)
return;
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- list_for_each_entry(port, &adapter->port_list_head, list)
+ read_lock_irqsave(&adapter->port_list_lock, flags);
+ list_for_each_entry(port, &adapter->port_list, list)
zfcp_erp_port_access_changed(port, id, ref);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ read_unlock_irqrestore(&adapter->port_list_lock, flags);
}
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index b3f28deb4505..03dec832b465 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -9,26 +9,31 @@
#ifndef ZFCP_EXT_H
#define ZFCP_EXT_H
+#include <linux/types.h>
+#include <scsi/fc/fc_els.h>
#include "zfcp_def.h"
+#include "zfcp_fc.h"
/* zfcp_aux.c */
extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *, u64);
extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, u64);
-extern int zfcp_adapter_enqueue(struct ccw_device *);
-extern void zfcp_adapter_dequeue(struct zfcp_adapter *);
+extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *);
extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, u64, u32,
u32);
-extern void zfcp_port_dequeue(struct zfcp_port *);
extern struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *, u64);
-extern void zfcp_unit_dequeue(struct zfcp_unit *);
extern int zfcp_reqlist_isempty(struct zfcp_adapter *);
extern void zfcp_sg_free_table(struct scatterlist *, int);
extern int zfcp_sg_setup_table(struct scatterlist *, int);
+extern void zfcp_device_unregister(struct device *,
+ const struct attribute_group *);
+extern void zfcp_adapter_release(struct kref *);
+extern void zfcp_adapter_unregister(struct zfcp_adapter *);
/* zfcp_ccw.c */
-extern int zfcp_ccw_register(void);
extern int zfcp_ccw_priv_sch(struct zfcp_adapter *);
extern struct ccw_driver zfcp_ccw_driver;
+extern struct zfcp_adapter *zfcp_ccw_adapter_by_cdev(struct ccw_device *);
+extern void zfcp_ccw_adapter_put(struct zfcp_adapter *);
/* zfcp_cfdc.c */
extern struct miscdevice zfcp_cfdc_misc;
@@ -51,7 +56,7 @@ extern void _zfcp_dbf_hba_fsf_unsol(const char *, int level, struct zfcp_dbf *,
struct fsf_status_read_buffer *);
extern void zfcp_dbf_hba_qdio(struct zfcp_dbf *, unsigned int, int, int);
extern void zfcp_dbf_hba_berr(struct zfcp_dbf *, struct zfcp_fsf_req *);
-extern void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *);
+extern void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *, u32);
extern void zfcp_dbf_san_ct_response(struct zfcp_fsf_req *);
extern void zfcp_dbf_san_els_request(struct zfcp_fsf_req *);
extern void zfcp_dbf_san_els_response(struct zfcp_fsf_req *);
@@ -92,24 +97,22 @@ extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *, char *,
extern void zfcp_erp_timeout_handler(unsigned long);
/* zfcp_fc.c */
-extern int zfcp_fc_scan_ports(struct zfcp_adapter *);
-extern void _zfcp_fc_scan_ports_later(struct work_struct *);
+extern void zfcp_fc_scan_ports(struct work_struct *);
extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *);
extern void zfcp_fc_port_did_lookup(struct work_struct *);
extern void zfcp_fc_trigger_did_lookup(struct zfcp_port *);
-extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *);
+extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fc_els_flogi *);
extern void zfcp_fc_test_link(struct zfcp_port *);
extern void zfcp_fc_link_test_work(struct work_struct *);
-extern void zfcp_fc_wka_ports_force_offline(struct zfcp_wka_ports *);
+extern void zfcp_fc_wka_ports_force_offline(struct zfcp_fc_wka_ports *);
extern int zfcp_fc_gs_setup(struct zfcp_adapter *);
extern void zfcp_fc_gs_destroy(struct zfcp_adapter *);
-extern int zfcp_fc_execute_els_fc_job(struct fc_bsg_job *);
-extern int zfcp_fc_execute_ct_fc_job(struct fc_bsg_job *);
+extern int zfcp_fc_exec_bsg_job(struct fc_bsg_job *);
/* zfcp_fsf.c */
extern int zfcp_fsf_open_port(struct zfcp_erp_action *);
-extern int zfcp_fsf_open_wka_port(struct zfcp_wka_port *);
-extern int zfcp_fsf_close_wka_port(struct zfcp_wka_port *);
+extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *);
+extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *);
extern int zfcp_fsf_close_port(struct zfcp_erp_action *);
extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *);
extern int zfcp_fsf_open_unit(struct zfcp_erp_action *);
@@ -125,8 +128,10 @@ extern struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *,
extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
extern int zfcp_fsf_status_read(struct zfcp_qdio *);
extern int zfcp_status_read_refill(struct zfcp_adapter *adapter);
-extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *);
-extern int zfcp_fsf_send_els(struct zfcp_send_els *);
+extern int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *, struct zfcp_fsf_ct_els *,
+ mempool_t *);
+extern int zfcp_fsf_send_els(struct zfcp_adapter *, u32,
+ struct zfcp_fsf_ct_els *);
extern int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *,
struct scsi_cmnd *);
extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);
@@ -153,7 +158,6 @@ extern void zfcp_qdio_close(struct zfcp_qdio *);
extern struct zfcp_data zfcp_data;
extern int zfcp_adapter_scsi_register(struct zfcp_adapter *);
extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
-extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *);
extern struct fc_function_template zfcp_transport_functions;
extern void zfcp_scsi_rport_work(struct work_struct *);
extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *);
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index df23bcead23d..ac5e3b7a3576 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -9,73 +9,38 @@
#define KMSG_COMPONENT "zfcp"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/types.h>
+#include <scsi/fc/fc_els.h>
+#include <scsi/libfc.h>
#include "zfcp_ext.h"
+#include "zfcp_fc.h"
-enum rscn_address_format {
- RSCN_PORT_ADDRESS = 0x0,
- RSCN_AREA_ADDRESS = 0x1,
- RSCN_DOMAIN_ADDRESS = 0x2,
- RSCN_FABRIC_ADDRESS = 0x3,
+static u32 zfcp_fc_rscn_range_mask[] = {
+ [ELS_ADDR_FMT_PORT] = 0xFFFFFF,
+ [ELS_ADDR_FMT_AREA] = 0xFFFF00,
+ [ELS_ADDR_FMT_DOM] = 0xFF0000,
+ [ELS_ADDR_FMT_FAB] = 0x000000,
};
-static u32 rscn_range_mask[] = {
- [RSCN_PORT_ADDRESS] = 0xFFFFFF,
- [RSCN_AREA_ADDRESS] = 0xFFFF00,
- [RSCN_DOMAIN_ADDRESS] = 0xFF0000,
- [RSCN_FABRIC_ADDRESS] = 0x000000,
-};
-
-struct gpn_ft_resp_acc {
- u8 control;
- u8 port_id[3];
- u8 reserved[4];
- u64 wwpn;
-} __attribute__ ((packed));
-
-#define ZFCP_CT_SIZE_ONE_PAGE (PAGE_SIZE - sizeof(struct ct_hdr))
-#define ZFCP_GPN_FT_ENTRIES (ZFCP_CT_SIZE_ONE_PAGE \
- / sizeof(struct gpn_ft_resp_acc))
-#define ZFCP_GPN_FT_BUFFERS 4
-#define ZFCP_GPN_FT_MAX_SIZE (ZFCP_GPN_FT_BUFFERS * PAGE_SIZE \
- - sizeof(struct ct_hdr))
-#define ZFCP_GPN_FT_MAX_ENTRIES ZFCP_GPN_FT_BUFFERS * (ZFCP_GPN_FT_ENTRIES + 1)
-
-struct ct_iu_gpn_ft_resp {
- struct ct_hdr header;
- struct gpn_ft_resp_acc accept[ZFCP_GPN_FT_ENTRIES];
-} __attribute__ ((packed));
-
-struct zfcp_gpn_ft {
- struct zfcp_send_ct ct;
- struct scatterlist sg_req;
- struct scatterlist sg_resp[ZFCP_GPN_FT_BUFFERS];
-};
-
-struct zfcp_fc_ns_handler_data {
- struct completion done;
- void (*handler)(unsigned long);
- unsigned long handler_data;
-};
-
-static int zfcp_fc_wka_port_get(struct zfcp_wka_port *wka_port)
+static int zfcp_fc_wka_port_get(struct zfcp_fc_wka_port *wka_port)
{
if (mutex_lock_interruptible(&wka_port->mutex))
return -ERESTARTSYS;
- if (wka_port->status == ZFCP_WKA_PORT_OFFLINE ||
- wka_port->status == ZFCP_WKA_PORT_CLOSING) {
- wka_port->status = ZFCP_WKA_PORT_OPENING;
+ if (wka_port->status == ZFCP_FC_WKA_PORT_OFFLINE ||
+ wka_port->status == ZFCP_FC_WKA_PORT_CLOSING) {
+ wka_port->status = ZFCP_FC_WKA_PORT_OPENING;
if (zfcp_fsf_open_wka_port(wka_port))
- wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
}
mutex_unlock(&wka_port->mutex);
wait_event(wka_port->completion_wq,
- wka_port->status == ZFCP_WKA_PORT_ONLINE ||
- wka_port->status == ZFCP_WKA_PORT_OFFLINE);
+ wka_port->status == ZFCP_FC_WKA_PORT_ONLINE ||
+ wka_port->status == ZFCP_FC_WKA_PORT_OFFLINE);
- if (wka_port->status == ZFCP_WKA_PORT_ONLINE) {
+ if (wka_port->status == ZFCP_FC_WKA_PORT_ONLINE) {
atomic_inc(&wka_port->refcount);
return 0;
}
@@ -85,24 +50,24 @@ static int zfcp_fc_wka_port_get(struct zfcp_wka_port *wka_port)
static void zfcp_fc_wka_port_offline(struct work_struct *work)
{
struct delayed_work *dw = to_delayed_work(work);
- struct zfcp_wka_port *wka_port =
- container_of(dw, struct zfcp_wka_port, work);
+ struct zfcp_fc_wka_port *wka_port =
+ container_of(dw, struct zfcp_fc_wka_port, work);
mutex_lock(&wka_port->mutex);
if ((atomic_read(&wka_port->refcount) != 0) ||
- (wka_port->status != ZFCP_WKA_PORT_ONLINE))
+ (wka_port->status != ZFCP_FC_WKA_PORT_ONLINE))
goto out;
- wka_port->status = ZFCP_WKA_PORT_CLOSING;
+ wka_port->status = ZFCP_FC_WKA_PORT_CLOSING;
if (zfcp_fsf_close_wka_port(wka_port)) {
- wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
wake_up(&wka_port->completion_wq);
}
out:
mutex_unlock(&wka_port->mutex);
}
-static void zfcp_fc_wka_port_put(struct zfcp_wka_port *wka_port)
+static void zfcp_fc_wka_port_put(struct zfcp_fc_wka_port *wka_port)
{
if (atomic_dec_return(&wka_port->refcount) != 0)
return;
@@ -110,7 +75,7 @@ static void zfcp_fc_wka_port_put(struct zfcp_wka_port *wka_port)
schedule_delayed_work(&wka_port->work, HZ / 100);
}
-static void zfcp_fc_wka_port_init(struct zfcp_wka_port *wka_port, u32 d_id,
+static void zfcp_fc_wka_port_init(struct zfcp_fc_wka_port *wka_port, u32 d_id,
struct zfcp_adapter *adapter)
{
init_waitqueue_head(&wka_port->completion_wq);
@@ -118,107 +83,107 @@ static void zfcp_fc_wka_port_init(struct zfcp_wka_port *wka_port, u32 d_id,
wka_port->adapter = adapter;
wka_port->d_id = d_id;
- wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
atomic_set(&wka_port->refcount, 0);
mutex_init(&wka_port->mutex);
INIT_DELAYED_WORK(&wka_port->work, zfcp_fc_wka_port_offline);
}
-static void zfcp_fc_wka_port_force_offline(struct zfcp_wka_port *wka)
+static void zfcp_fc_wka_port_force_offline(struct zfcp_fc_wka_port *wka)
{
cancel_delayed_work_sync(&wka->work);
mutex_lock(&wka->mutex);
- wka->status = ZFCP_WKA_PORT_OFFLINE;
+ wka->status = ZFCP_FC_WKA_PORT_OFFLINE;
mutex_unlock(&wka->mutex);
}
-void zfcp_fc_wka_ports_force_offline(struct zfcp_wka_ports *gs)
+void zfcp_fc_wka_ports_force_offline(struct zfcp_fc_wka_ports *gs)
{
+ if (!gs)
+ return;
zfcp_fc_wka_port_force_offline(&gs->ms);
zfcp_fc_wka_port_force_offline(&gs->ts);
zfcp_fc_wka_port_force_offline(&gs->ds);
zfcp_fc_wka_port_force_offline(&gs->as);
- zfcp_fc_wka_port_force_offline(&gs->ks);
}
static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
- struct fcp_rscn_element *elem)
+ struct fc_els_rscn_page *page)
{
unsigned long flags;
+ struct zfcp_adapter *adapter = fsf_req->adapter;
struct zfcp_port *port;
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- list_for_each_entry(port, &fsf_req->adapter->port_list_head, list) {
- if ((port->d_id & range) == (elem->nport_did & range))
+ read_lock_irqsave(&adapter->port_list_lock, flags);
+ list_for_each_entry(port, &adapter->port_list, list) {
+ if ((port->d_id & range) == (ntoh24(page->rscn_fid) & range))
zfcp_fc_test_link(port);
if (!port->d_id)
zfcp_erp_port_reopen(port,
ZFCP_STATUS_COMMON_ERP_FAILED,
"fcrscn1", NULL);
}
-
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ read_unlock_irqrestore(&adapter->port_list_lock, flags);
}
static void zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req)
{
struct fsf_status_read_buffer *status_buffer = (void *)fsf_req->data;
- struct fcp_rscn_head *fcp_rscn_head;
- struct fcp_rscn_element *fcp_rscn_element;
+ struct fc_els_rscn *head;
+ struct fc_els_rscn_page *page;
u16 i;
u16 no_entries;
- u32 range_mask;
+ unsigned int afmt;
- fcp_rscn_head = (struct fcp_rscn_head *) status_buffer->payload.data;
- fcp_rscn_element = (struct fcp_rscn_element *) fcp_rscn_head;
+ head = (struct fc_els_rscn *) status_buffer->payload.data;
+ page = (struct fc_els_rscn_page *) head;
/* see FC-FS */
- no_entries = fcp_rscn_head->payload_len /
- sizeof(struct fcp_rscn_element);
+ no_entries = head->rscn_plen / sizeof(struct fc_els_rscn_page);
for (i = 1; i < no_entries; i++) {
/* skip head and start with 1st element */
- fcp_rscn_element++;
- range_mask = rscn_range_mask[fcp_rscn_element->addr_format];
- _zfcp_fc_incoming_rscn(fsf_req, range_mask, fcp_rscn_element);
+ page++;
+ afmt = page->rscn_page_flags & ELS_RSCN_ADDR_FMT_MASK;
+ _zfcp_fc_incoming_rscn(fsf_req, zfcp_fc_rscn_range_mask[afmt],
+ page);
}
- schedule_work(&fsf_req->adapter->scan_work);
+ queue_work(fsf_req->adapter->work_queue, &fsf_req->adapter->scan_work);
}
static void zfcp_fc_incoming_wwpn(struct zfcp_fsf_req *req, u64 wwpn)
{
+ unsigned long flags;
struct zfcp_adapter *adapter = req->adapter;
struct zfcp_port *port;
- unsigned long flags;
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- list_for_each_entry(port, &adapter->port_list_head, list)
- if (port->wwpn == wwpn)
+ read_lock_irqsave(&adapter->port_list_lock, flags);
+ list_for_each_entry(port, &adapter->port_list, list)
+ if (port->wwpn == wwpn) {
+ zfcp_erp_port_forced_reopen(port, 0, "fciwwp1", req);
break;
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
-
- if (port && (port->wwpn == wwpn))
- zfcp_erp_port_forced_reopen(port, 0, "fciwwp1", req);
+ }
+ read_unlock_irqrestore(&adapter->port_list_lock, flags);
}
static void zfcp_fc_incoming_plogi(struct zfcp_fsf_req *req)
{
- struct fsf_status_read_buffer *status_buffer =
- (struct fsf_status_read_buffer *)req->data;
- struct fsf_plogi *els_plogi =
- (struct fsf_plogi *) status_buffer->payload.data;
+ struct fsf_status_read_buffer *status_buffer;
+ struct fc_els_flogi *plogi;
- zfcp_fc_incoming_wwpn(req, els_plogi->serv_param.wwpn);
+ status_buffer = (struct fsf_status_read_buffer *) req->data;
+ plogi = (struct fc_els_flogi *) status_buffer->payload.data;
+ zfcp_fc_incoming_wwpn(req, plogi->fl_wwpn);
}
static void zfcp_fc_incoming_logo(struct zfcp_fsf_req *req)
{
struct fsf_status_read_buffer *status_buffer =
(struct fsf_status_read_buffer *)req->data;
- struct fcp_logo *els_logo =
- (struct fcp_logo *) status_buffer->payload.data;
+ struct fc_els_logo *logo =
+ (struct fc_els_logo *) status_buffer->payload.data;
- zfcp_fc_incoming_wwpn(req, els_logo->nport_wwpn);
+ zfcp_fc_incoming_wwpn(req, logo->fl_n_port_wwn);
}
/**
@@ -232,79 +197,72 @@ void zfcp_fc_incoming_els(struct zfcp_fsf_req *fsf_req)
unsigned int els_type = status_buffer->payload.data[0];
zfcp_dbf_san_incoming_els(fsf_req);
- if (els_type == LS_PLOGI)
+ if (els_type == ELS_PLOGI)
zfcp_fc_incoming_plogi(fsf_req);
- else if (els_type == LS_LOGO)
+ else if (els_type == ELS_LOGO)
zfcp_fc_incoming_logo(fsf_req);
- else if (els_type == LS_RSCN)
+ else if (els_type == ELS_RSCN)
zfcp_fc_incoming_rscn(fsf_req);
}
-static void zfcp_fc_ns_handler(unsigned long data)
+static void zfcp_fc_ns_gid_pn_eval(void *data)
{
- struct zfcp_fc_ns_handler_data *compl_rec =
- (struct zfcp_fc_ns_handler_data *) data;
-
- if (compl_rec->handler)
- compl_rec->handler(compl_rec->handler_data);
-
- complete(&compl_rec->done);
-}
-
-static void zfcp_fc_ns_gid_pn_eval(unsigned long data)
-{
- struct zfcp_gid_pn_data *gid_pn = (struct zfcp_gid_pn_data *) data;
- struct zfcp_send_ct *ct = &gid_pn->ct;
- struct ct_iu_gid_pn_req *ct_iu_req = sg_virt(ct->req);
- struct ct_iu_gid_pn_resp *ct_iu_resp = sg_virt(ct->resp);
+ struct zfcp_fc_gid_pn *gid_pn = data;
+ struct zfcp_fsf_ct_els *ct = &gid_pn->ct;
+ struct zfcp_fc_gid_pn_req *gid_pn_req = sg_virt(ct->req);
+ struct zfcp_fc_gid_pn_resp *gid_pn_resp = sg_virt(ct->resp);
struct zfcp_port *port = gid_pn->port;
if (ct->status)
return;
- if (ct_iu_resp->header.cmd_rsp_code != ZFCP_CT_ACCEPT)
+ if (gid_pn_resp->ct_hdr.ct_cmd != FC_FS_ACC)
return;
/* paranoia */
- if (ct_iu_req->wwpn != port->wwpn)
+ if (gid_pn_req->gid_pn.fn_wwpn != port->wwpn)
return;
/* looks like a valid d_id */
- port->d_id = ct_iu_resp->d_id & ZFCP_DID_MASK;
+ port->d_id = ntoh24(gid_pn_resp->gid_pn.fp_fid);
+}
+
+static void zfcp_fc_complete(void *data)
+{
+ complete(data);
}
static int zfcp_fc_ns_gid_pn_request(struct zfcp_port *port,
- struct zfcp_gid_pn_data *gid_pn)
+ struct zfcp_fc_gid_pn *gid_pn)
{
struct zfcp_adapter *adapter = port->adapter;
- struct zfcp_fc_ns_handler_data compl_rec;
+ DECLARE_COMPLETION_ONSTACK(completion);
int ret;
/* setup parameters for send generic command */
gid_pn->port = port;
- gid_pn->ct.wka_port = &adapter->gs->ds;
- gid_pn->ct.handler = zfcp_fc_ns_handler;
- gid_pn->ct.handler_data = (unsigned long) &compl_rec;
- gid_pn->ct.req = &gid_pn->req;
- gid_pn->ct.resp = &gid_pn->resp;
- sg_init_one(&gid_pn->req, &gid_pn->ct_iu_req,
- sizeof(struct ct_iu_gid_pn_req));
- sg_init_one(&gid_pn->resp, &gid_pn->ct_iu_resp,
- sizeof(struct ct_iu_gid_pn_resp));
+ gid_pn->ct.handler = zfcp_fc_complete;
+ gid_pn->ct.handler_data = &completion;
+ gid_pn->ct.req = &gid_pn->sg_req;
+ gid_pn->ct.resp = &gid_pn->sg_resp;
+ sg_init_one(&gid_pn->sg_req, &gid_pn->gid_pn_req,
+ sizeof(struct zfcp_fc_gid_pn_req));
+ sg_init_one(&gid_pn->sg_resp, &gid_pn->gid_pn_resp,
+ sizeof(struct zfcp_fc_gid_pn_resp));
/* setup nameserver request */
- gid_pn->ct_iu_req.header.revision = ZFCP_CT_REVISION;
- gid_pn->ct_iu_req.header.gs_type = ZFCP_CT_DIRECTORY_SERVICE;
- gid_pn->ct_iu_req.header.gs_subtype = ZFCP_CT_NAME_SERVER;
- gid_pn->ct_iu_req.header.options = ZFCP_CT_SYNCHRONOUS;
- gid_pn->ct_iu_req.header.cmd_rsp_code = ZFCP_CT_GID_PN;
- gid_pn->ct_iu_req.header.max_res_size = ZFCP_CT_SIZE_ONE_PAGE / 4;
- gid_pn->ct_iu_req.wwpn = port->wwpn;
-
- init_completion(&compl_rec.done);
- compl_rec.handler = zfcp_fc_ns_gid_pn_eval;
- compl_rec.handler_data = (unsigned long) gid_pn;
- ret = zfcp_fsf_send_ct(&gid_pn->ct, adapter->pool.gid_pn_req);
- if (!ret)
- wait_for_completion(&compl_rec.done);
+ gid_pn->gid_pn_req.ct_hdr.ct_rev = FC_CT_REV;
+ gid_pn->gid_pn_req.ct_hdr.ct_fs_type = FC_FST_DIR;
+ gid_pn->gid_pn_req.ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE;
+ gid_pn->gid_pn_req.ct_hdr.ct_options = 0;
+ gid_pn->gid_pn_req.ct_hdr.ct_cmd = FC_NS_GID_PN;
+ gid_pn->gid_pn_req.ct_hdr.ct_mr_size = ZFCP_FC_CT_SIZE_PAGE / 4;
+ gid_pn->gid_pn_req.gid_pn.fn_wwpn = port->wwpn;
+
+ ret = zfcp_fsf_send_ct(&adapter->gs->ds, &gid_pn->ct,
+ adapter->pool.gid_pn_req);
+ if (!ret) {
+ wait_for_completion(&completion);
+ zfcp_fc_ns_gid_pn_eval(gid_pn);
+ }
return ret;
}
@@ -316,10 +274,10 @@ static int zfcp_fc_ns_gid_pn_request(struct zfcp_port *port,
static int zfcp_fc_ns_gid_pn(struct zfcp_port *port)
{
int ret;
- struct zfcp_gid_pn_data *gid_pn;
+ struct zfcp_fc_gid_pn *gid_pn;
struct zfcp_adapter *adapter = port->adapter;
- gid_pn = mempool_alloc(adapter->pool.gid_pn_data, GFP_ATOMIC);
+ gid_pn = mempool_alloc(adapter->pool.gid_pn, GFP_ATOMIC);
if (!gid_pn)
return -ENOMEM;
@@ -333,7 +291,7 @@ static int zfcp_fc_ns_gid_pn(struct zfcp_port *port)
zfcp_fc_wka_port_put(&adapter->gs->ds);
out:
- mempool_free(gid_pn, adapter->pool.gid_pn_data);
+ mempool_free(gid_pn, adapter->pool.gid_pn);
return ret;
}
@@ -357,7 +315,7 @@ void zfcp_fc_port_did_lookup(struct work_struct *work)
zfcp_erp_port_reopen(port, 0, "fcgpn_3", NULL);
out:
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
}
/**
@@ -366,9 +324,9 @@ out:
*/
void zfcp_fc_trigger_did_lookup(struct zfcp_port *port)
{
- zfcp_port_get(port);
+ get_device(&port->sysfs_device);
if (!queue_work(port->adapter->work_queue, &port->gid_pn_work))
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
}
/**
@@ -378,33 +336,36 @@ void zfcp_fc_trigger_did_lookup(struct zfcp_port *port)
*
* Evaluate PLOGI playload and copy important fields into zfcp_port structure
*/
-void zfcp_fc_plogi_evaluate(struct zfcp_port *port, struct fsf_plogi *plogi)
-{
- port->maxframe_size = plogi->serv_param.common_serv_param[7] |
- ((plogi->serv_param.common_serv_param[6] & 0x0F) << 8);
- if (plogi->serv_param.class1_serv_param[0] & 0x80)
+void zfcp_fc_plogi_evaluate(struct zfcp_port *port, struct fc_els_flogi *plogi)
+{
+ if (plogi->fl_wwpn != port->wwpn) {
+ port->d_id = 0;
+ dev_warn(&port->adapter->ccw_device->dev,
+ "A port opened with WWPN 0x%016Lx returned data that "
+ "identifies it as WWPN 0x%016Lx\n",
+ (unsigned long long) port->wwpn,
+ (unsigned long long) plogi->fl_wwpn);
+ return;
+ }
+
+ port->wwnn = plogi->fl_wwnn;
+ port->maxframe_size = plogi->fl_csp.sp_bb_data;
+
+ if (plogi->fl_cssp[0].cp_class & FC_CPC_VALID)
port->supported_classes |= FC_COS_CLASS1;
- if (plogi->serv_param.class2_serv_param[0] & 0x80)
+ if (plogi->fl_cssp[1].cp_class & FC_CPC_VALID)
port->supported_classes |= FC_COS_CLASS2;
- if (plogi->serv_param.class3_serv_param[0] & 0x80)
+ if (plogi->fl_cssp[2].cp_class & FC_CPC_VALID)
port->supported_classes |= FC_COS_CLASS3;
- if (plogi->serv_param.class4_serv_param[0] & 0x80)
+ if (plogi->fl_cssp[3].cp_class & FC_CPC_VALID)
port->supported_classes |= FC_COS_CLASS4;
}
-struct zfcp_els_adisc {
- struct zfcp_send_els els;
- struct scatterlist req;
- struct scatterlist resp;
- struct zfcp_ls_adisc ls_adisc;
- struct zfcp_ls_adisc ls_adisc_acc;
-};
-
-static void zfcp_fc_adisc_handler(unsigned long data)
+static void zfcp_fc_adisc_handler(void *data)
{
- struct zfcp_els_adisc *adisc = (struct zfcp_els_adisc *) data;
+ struct zfcp_fc_els_adisc *adisc = data;
struct zfcp_port *port = adisc->els.port;
- struct zfcp_ls_adisc *ls_adisc = &adisc->ls_adisc_acc;
+ struct fc_els_adisc *adisc_resp = &adisc->adisc_resp;
if (adisc->els.status) {
/* request rejected or timed out */
@@ -414,9 +375,9 @@ static void zfcp_fc_adisc_handler(unsigned long data)
}
if (!port->wwnn)
- port->wwnn = ls_adisc->wwnn;
+ port->wwnn = adisc_resp->adisc_wwnn;
- if ((port->wwpn != ls_adisc->wwpn) ||
+ if ((port->wwpn != adisc_resp->adisc_wwpn) ||
!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_OPEN)) {
zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
"fcadh_2", NULL);
@@ -427,40 +388,44 @@ static void zfcp_fc_adisc_handler(unsigned long data)
zfcp_scsi_schedule_rport_register(port);
out:
atomic_clear_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
- zfcp_port_put(port);
- kfree(adisc);
+ put_device(&port->sysfs_device);
+ kmem_cache_free(zfcp_data.adisc_cache, adisc);
}
static int zfcp_fc_adisc(struct zfcp_port *port)
{
- struct zfcp_els_adisc *adisc;
+ struct zfcp_fc_els_adisc *adisc;
struct zfcp_adapter *adapter = port->adapter;
+ int ret;
- adisc = kzalloc(sizeof(struct zfcp_els_adisc), GFP_ATOMIC);
+ adisc = kmem_cache_alloc(zfcp_data.adisc_cache, GFP_ATOMIC);
if (!adisc)
return -ENOMEM;
+ adisc->els.port = port;
adisc->els.req = &adisc->req;
adisc->els.resp = &adisc->resp;
- sg_init_one(adisc->els.req, &adisc->ls_adisc,
- sizeof(struct zfcp_ls_adisc));
- sg_init_one(adisc->els.resp, &adisc->ls_adisc_acc,
- sizeof(struct zfcp_ls_adisc));
+ sg_init_one(adisc->els.req, &adisc->adisc_req,
+ sizeof(struct fc_els_adisc));
+ sg_init_one(adisc->els.resp, &adisc->adisc_resp,
+ sizeof(struct fc_els_adisc));
- adisc->els.adapter = adapter;
- adisc->els.port = port;
- adisc->els.d_id = port->d_id;
adisc->els.handler = zfcp_fc_adisc_handler;
- adisc->els.handler_data = (unsigned long) adisc;
- adisc->els.ls_code = adisc->ls_adisc.code = ZFCP_LS_ADISC;
+ adisc->els.handler_data = adisc;
/* acc. to FC-FS, hard_nport_id in ADISC should not be set for ports
without FC-AL-2 capability, so we don't set it */
- adisc->ls_adisc.wwpn = fc_host_port_name(adapter->scsi_host);
- adisc->ls_adisc.wwnn = fc_host_node_name(adapter->scsi_host);
- adisc->ls_adisc.nport_id = fc_host_port_id(adapter->scsi_host);
+ adisc->adisc_req.adisc_wwpn = fc_host_port_name(adapter->scsi_host);
+ adisc->adisc_req.adisc_wwnn = fc_host_node_name(adapter->scsi_host);
+ adisc->adisc_req.adisc_cmd = ELS_ADISC;
+ hton24(adisc->adisc_req.adisc_port_id,
+ fc_host_port_id(adapter->scsi_host));
+
+ ret = zfcp_fsf_send_els(adapter, port->d_id, &adisc->els);
+ if (ret)
+ kmem_cache_free(zfcp_data.adisc_cache, adisc);
- return zfcp_fsf_send_els(&adisc->els);
+ return ret;
}
void zfcp_fc_link_test_work(struct work_struct *work)
@@ -469,7 +434,7 @@ void zfcp_fc_link_test_work(struct work_struct *work)
container_of(work, struct zfcp_port, test_link_work);
int retval;
- zfcp_port_get(port);
+ get_device(&port->sysfs_device);
port->rport_task = RPORT_DEL;
zfcp_scsi_rport_work(&port->rport_work);
@@ -488,7 +453,7 @@ void zfcp_fc_link_test_work(struct work_struct *work)
zfcp_erp_port_forced_reopen(port, 0, "fcltwk1", NULL);
out:
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
}
/**
@@ -501,12 +466,12 @@ out:
*/
void zfcp_fc_test_link(struct zfcp_port *port)
{
- zfcp_port_get(port);
+ get_device(&port->sysfs_device);
if (!queue_work(port->adapter->work_queue, &port->test_link_work))
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
}
-static void zfcp_free_sg_env(struct zfcp_gpn_ft *gpn_ft, int buf_num)
+static void zfcp_free_sg_env(struct zfcp_fc_gpn_ft *gpn_ft, int buf_num)
{
struct scatterlist *sg = &gpn_ft->sg_req;
@@ -516,10 +481,10 @@ static void zfcp_free_sg_env(struct zfcp_gpn_ft *gpn_ft, int buf_num)
kfree(gpn_ft);
}
-static struct zfcp_gpn_ft *zfcp_alloc_sg_env(int buf_num)
+static struct zfcp_fc_gpn_ft *zfcp_alloc_sg_env(int buf_num)
{
- struct zfcp_gpn_ft *gpn_ft;
- struct ct_iu_gpn_ft_req *req;
+ struct zfcp_fc_gpn_ft *gpn_ft;
+ struct zfcp_fc_gpn_ft_req *req;
gpn_ft = kzalloc(sizeof(*gpn_ft), GFP_KERNEL);
if (!gpn_ft)
@@ -542,159 +507,152 @@ out:
}
-static int zfcp_fc_send_gpn_ft(struct zfcp_gpn_ft *gpn_ft,
+static int zfcp_fc_send_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
struct zfcp_adapter *adapter, int max_bytes)
{
- struct zfcp_send_ct *ct = &gpn_ft->ct;
- struct ct_iu_gpn_ft_req *req = sg_virt(&gpn_ft->sg_req);
- struct zfcp_fc_ns_handler_data compl_rec;
+ struct zfcp_fsf_ct_els *ct = &gpn_ft->ct;
+ struct zfcp_fc_gpn_ft_req *req = sg_virt(&gpn_ft->sg_req);
+ DECLARE_COMPLETION_ONSTACK(completion);
int ret;
/* prepare CT IU for GPN_FT */
- req->header.revision = ZFCP_CT_REVISION;
- req->header.gs_type = ZFCP_CT_DIRECTORY_SERVICE;
- req->header.gs_subtype = ZFCP_CT_NAME_SERVER;
- req->header.options = ZFCP_CT_SYNCHRONOUS;
- req->header.cmd_rsp_code = ZFCP_CT_GPN_FT;
- req->header.max_res_size = max_bytes / 4;
- req->flags = 0;
- req->domain_id_scope = 0;
- req->area_id_scope = 0;
- req->fc4_type = ZFCP_CT_SCSI_FCP;
+ req->ct_hdr.ct_rev = FC_CT_REV;
+ req->ct_hdr.ct_fs_type = FC_FST_DIR;
+ req->ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE;
+ req->ct_hdr.ct_options = 0;
+ req->ct_hdr.ct_cmd = FC_NS_GPN_FT;
+ req->ct_hdr.ct_mr_size = max_bytes / 4;
+ req->gpn_ft.fn_domain_id_scope = 0;
+ req->gpn_ft.fn_area_id_scope = 0;
+ req->gpn_ft.fn_fc4_type = FC_TYPE_FCP;
/* prepare zfcp_send_ct */
- ct->wka_port = &adapter->gs->ds;
- ct->handler = zfcp_fc_ns_handler;
- ct->handler_data = (unsigned long)&compl_rec;
+ ct->handler = zfcp_fc_complete;
+ ct->handler_data = &completion;
ct->req = &gpn_ft->sg_req;
ct->resp = gpn_ft->sg_resp;
- init_completion(&compl_rec.done);
- compl_rec.handler = NULL;
- ret = zfcp_fsf_send_ct(ct, NULL);
+ ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct, NULL);
if (!ret)
- wait_for_completion(&compl_rec.done);
+ wait_for_completion(&completion);
return ret;
}
-static void zfcp_fc_validate_port(struct zfcp_port *port)
+static void zfcp_fc_validate_port(struct zfcp_port *port, struct list_head *lh)
{
- struct zfcp_adapter *adapter = port->adapter;
-
if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_NOESC))
return;
atomic_clear_mask(ZFCP_STATUS_COMMON_NOESC, &port->status);
if ((port->supported_classes != 0) ||
- !list_empty(&port->unit_list_head)) {
- zfcp_port_put(port);
+ !list_empty(&port->unit_list))
return;
- }
- zfcp_erp_port_shutdown(port, 0, "fcpval1", NULL);
- zfcp_erp_wait(adapter);
- zfcp_port_put(port);
- zfcp_port_dequeue(port);
+
+ list_move_tail(&port->list, lh);
}
-static int zfcp_fc_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft, int max_entries)
+static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
+ struct zfcp_adapter *adapter, int max_entries)
{
- struct zfcp_send_ct *ct = &gpn_ft->ct;
+ struct zfcp_fsf_ct_els *ct = &gpn_ft->ct;
struct scatterlist *sg = gpn_ft->sg_resp;
- struct ct_hdr *hdr = sg_virt(sg);
- struct gpn_ft_resp_acc *acc = sg_virt(sg);
- struct zfcp_adapter *adapter = ct->wka_port->adapter;
+ struct fc_ct_hdr *hdr = sg_virt(sg);
+ struct fc_gpn_ft_resp *acc = sg_virt(sg);
struct zfcp_port *port, *tmp;
+ unsigned long flags;
+ LIST_HEAD(remove_lh);
u32 d_id;
int ret = 0, x, last = 0;
if (ct->status)
return -EIO;
- if (hdr->cmd_rsp_code != ZFCP_CT_ACCEPT) {
- if (hdr->reason_code == ZFCP_CT_UNABLE_TO_PERFORM_CMD)
+ if (hdr->ct_cmd != FC_FS_ACC) {
+ if (hdr->ct_reason == FC_BA_RJT_UNABLE)
return -EAGAIN; /* might be a temporary condition */
return -EIO;
}
- if (hdr->max_res_size) {
+ if (hdr->ct_mr_size) {
dev_warn(&adapter->ccw_device->dev,
"The name server reported %d words residual data\n",
- hdr->max_res_size);
+ hdr->ct_mr_size);
return -E2BIG;
}
- mutex_lock(&zfcp_data.config_mutex);
-
/* first entry is the header */
for (x = 1; x < max_entries && !last; x++) {
- if (x % (ZFCP_GPN_FT_ENTRIES + 1))
+ if (x % (ZFCP_FC_GPN_FT_ENT_PAGE + 1))
acc++;
else
acc = sg_virt(++sg);
- last = acc->control & 0x80;
- d_id = acc->port_id[0] << 16 | acc->port_id[1] << 8 |
- acc->port_id[2];
+ last = acc->fp_flags & FC_NS_FID_LAST;
+ d_id = ntoh24(acc->fp_fid);
/* don't attach ports with a well known address */
- if ((d_id & ZFCP_DID_WKA) == ZFCP_DID_WKA)
+ if (d_id >= FC_FID_WELL_KNOWN_BASE)
continue;
/* skip the adapter's port and known remote ports */
- if (acc->wwpn == fc_host_port_name(adapter->scsi_host))
- continue;
- port = zfcp_get_port_by_wwpn(adapter, acc->wwpn);
- if (port)
+ if (acc->fp_wwpn == fc_host_port_name(adapter->scsi_host))
continue;
- port = zfcp_port_enqueue(adapter, acc->wwpn,
+ port = zfcp_port_enqueue(adapter, acc->fp_wwpn,
ZFCP_STATUS_COMMON_NOESC, d_id);
- if (IS_ERR(port))
- ret = PTR_ERR(port);
- else
+ if (!IS_ERR(port))
zfcp_erp_port_reopen(port, 0, "fcegpf1", NULL);
+ else if (PTR_ERR(port) != -EEXIST)
+ ret = PTR_ERR(port);
}
zfcp_erp_wait(adapter);
- list_for_each_entry_safe(port, tmp, &adapter->port_list_head, list)
- zfcp_fc_validate_port(port);
- mutex_unlock(&zfcp_data.config_mutex);
+ write_lock_irqsave(&adapter->port_list_lock, flags);
+ list_for_each_entry_safe(port, tmp, &adapter->port_list, list)
+ zfcp_fc_validate_port(port, &remove_lh);
+ write_unlock_irqrestore(&adapter->port_list_lock, flags);
+
+ list_for_each_entry_safe(port, tmp, &remove_lh, list) {
+ zfcp_erp_port_shutdown(port, 0, "fcegpf2", NULL);
+ zfcp_device_unregister(&port->sysfs_device,
+ &zfcp_sysfs_port_attrs);
+ }
+
return ret;
}
/**
* zfcp_fc_scan_ports - scan remote ports and attach new ports
- * @adapter: pointer to struct zfcp_adapter
+ * @work: reference to scheduled work
*/
-int zfcp_fc_scan_ports(struct zfcp_adapter *adapter)
+void zfcp_fc_scan_ports(struct work_struct *work)
{
+ struct zfcp_adapter *adapter = container_of(work, struct zfcp_adapter,
+ scan_work);
int ret, i;
- struct zfcp_gpn_ft *gpn_ft;
+ struct zfcp_fc_gpn_ft *gpn_ft;
int chain, max_entries, buf_num, max_bytes;
chain = adapter->adapter_features & FSF_FEATURE_ELS_CT_CHAINED_SBALS;
- buf_num = chain ? ZFCP_GPN_FT_BUFFERS : 1;
- max_entries = chain ? ZFCP_GPN_FT_MAX_ENTRIES : ZFCP_GPN_FT_ENTRIES;
- max_bytes = chain ? ZFCP_GPN_FT_MAX_SIZE : ZFCP_CT_SIZE_ONE_PAGE;
+ buf_num = chain ? ZFCP_FC_GPN_FT_NUM_BUFS : 1;
+ max_entries = chain ? ZFCP_FC_GPN_FT_MAX_ENT : ZFCP_FC_GPN_FT_ENT_PAGE;
+ max_bytes = chain ? ZFCP_FC_GPN_FT_MAX_SIZE : ZFCP_FC_CT_SIZE_PAGE;
if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT &&
fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV)
- return 0;
+ return;
- ret = zfcp_fc_wka_port_get(&adapter->gs->ds);
- if (ret)
- return ret;
+ if (zfcp_fc_wka_port_get(&adapter->gs->ds))
+ return;
gpn_ft = zfcp_alloc_sg_env(buf_num);
- if (!gpn_ft) {
- ret = -ENOMEM;
+ if (!gpn_ft)
goto out;
- }
for (i = 0; i < 3; i++) {
ret = zfcp_fc_send_gpn_ft(gpn_ft, adapter, max_bytes);
if (!ret) {
- ret = zfcp_fc_eval_gpn_ft(gpn_ft, max_entries);
+ ret = zfcp_fc_eval_gpn_ft(gpn_ft, adapter, max_entries);
if (ret == -EAGAIN)
ssleep(1);
else
@@ -704,174 +662,116 @@ int zfcp_fc_scan_ports(struct zfcp_adapter *adapter)
zfcp_free_sg_env(gpn_ft, buf_num);
out:
zfcp_fc_wka_port_put(&adapter->gs->ds);
- return ret;
-}
-
-
-void _zfcp_fc_scan_ports_later(struct work_struct *work)
-{
- zfcp_fc_scan_ports(container_of(work, struct zfcp_adapter, scan_work));
}
-struct zfcp_els_fc_job {
- struct zfcp_send_els els;
- struct fc_bsg_job *job;
-};
-
-static void zfcp_fc_generic_els_handler(unsigned long data)
+static void zfcp_fc_ct_els_job_handler(void *data)
{
- struct zfcp_els_fc_job *els_fc_job = (struct zfcp_els_fc_job *) data;
- struct fc_bsg_job *job = els_fc_job->job;
- struct fc_bsg_reply *reply = job->reply;
-
- if (els_fc_job->els.status) {
- /* request rejected or timed out */
- reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_REJECT;
- goto out;
- }
-
- reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
- reply->reply_payload_rcv_len = job->reply_payload.payload_len;
+ struct fc_bsg_job *job = data;
+ struct zfcp_fsf_ct_els *zfcp_ct_els = job->dd_data;
+ int status = zfcp_ct_els->status;
+ int reply_status;
-out:
- job->state_flags = FC_RQST_STATE_DONE;
+ reply_status = status ? FC_CTELS_STATUS_REJECT : FC_CTELS_STATUS_OK;
+ job->reply->reply_data.ctels_reply.status = reply_status;
+ job->reply->reply_payload_rcv_len = job->reply_payload.payload_len;
job->job_done(job);
- kfree(els_fc_job);
}
-int zfcp_fc_execute_els_fc_job(struct fc_bsg_job *job)
+static int zfcp_fc_exec_els_job(struct fc_bsg_job *job,
+ struct zfcp_adapter *adapter)
{
- struct zfcp_els_fc_job *els_fc_job;
+ struct zfcp_fsf_ct_els *els = job->dd_data;
struct fc_rport *rport = job->rport;
- struct Scsi_Host *shost;
- struct zfcp_adapter *adapter;
struct zfcp_port *port;
- u8 *port_did;
-
- shost = rport ? rport_to_shost(rport) : job->shost;
- adapter = (struct zfcp_adapter *)shost->hostdata[0];
-
- if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN))
- return -EINVAL;
-
- els_fc_job = kzalloc(sizeof(struct zfcp_els_fc_job), GFP_KERNEL);
- if (!els_fc_job)
- return -ENOMEM;
+ u32 d_id;
- els_fc_job->els.adapter = adapter;
if (rport) {
- read_lock_irq(&zfcp_data.config_lock);
port = zfcp_get_port_by_wwpn(adapter, rport->port_name);
- if (port)
- els_fc_job->els.d_id = port->d_id;
- read_unlock_irq(&zfcp_data.config_lock);
- if (!port) {
- kfree(els_fc_job);
+ if (!port)
return -EINVAL;
- }
- } else {
- port_did = job->request->rqst_data.h_els.port_id;
- els_fc_job->els.d_id = (port_did[0] << 16) +
- (port_did[1] << 8) + port_did[2];
- }
-
- els_fc_job->els.req = job->request_payload.sg_list;
- els_fc_job->els.resp = job->reply_payload.sg_list;
- els_fc_job->els.handler = zfcp_fc_generic_els_handler;
- els_fc_job->els.handler_data = (unsigned long) els_fc_job;
- els_fc_job->job = job;
-
- return zfcp_fsf_send_els(&els_fc_job->els);
-}
-
-struct zfcp_ct_fc_job {
- struct zfcp_send_ct ct;
- struct fc_bsg_job *job;
-};
-
-static void zfcp_fc_generic_ct_handler(unsigned long data)
-{
- struct zfcp_ct_fc_job *ct_fc_job = (struct zfcp_ct_fc_job *) data;
- struct fc_bsg_job *job = ct_fc_job->job;
-
- job->reply->reply_data.ctels_reply.status = ct_fc_job->ct.status ?
- FC_CTELS_STATUS_REJECT : FC_CTELS_STATUS_OK;
- job->reply->reply_payload_rcv_len = job->reply_payload.payload_len;
- job->state_flags = FC_RQST_STATE_DONE;
- job->job_done(job);
- zfcp_fc_wka_port_put(ct_fc_job->ct.wka_port);
+ d_id = port->d_id;
+ put_device(&port->sysfs_device);
+ } else
+ d_id = ntoh24(job->request->rqst_data.h_els.port_id);
- kfree(ct_fc_job);
+ return zfcp_fsf_send_els(adapter, d_id, els);
}
-int zfcp_fc_execute_ct_fc_job(struct fc_bsg_job *job)
+static int zfcp_fc_exec_ct_job(struct fc_bsg_job *job,
+ struct zfcp_adapter *adapter)
{
int ret;
u8 gs_type;
- struct fc_rport *rport = job->rport;
- struct Scsi_Host *shost;
- struct zfcp_adapter *adapter;
- struct zfcp_ct_fc_job *ct_fc_job;
+ struct zfcp_fsf_ct_els *ct = job->dd_data;
+ struct zfcp_fc_wka_port *wka_port;
u32 preamble_word1;
- shost = rport ? rport_to_shost(rport) : job->shost;
-
- adapter = (struct zfcp_adapter *)shost->hostdata[0];
- if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN))
- return -EINVAL;
-
- ct_fc_job = kzalloc(sizeof(struct zfcp_ct_fc_job), GFP_KERNEL);
- if (!ct_fc_job)
- return -ENOMEM;
-
preamble_word1 = job->request->rqst_data.r_ct.preamble_word1;
gs_type = (preamble_word1 & 0xff000000) >> 24;
switch (gs_type) {
case FC_FST_ALIAS:
- ct_fc_job->ct.wka_port = &adapter->gs->as;
+ wka_port = &adapter->gs->as;
break;
case FC_FST_MGMT:
- ct_fc_job->ct.wka_port = &adapter->gs->ms;
+ wka_port = &adapter->gs->ms;
break;
case FC_FST_TIME:
- ct_fc_job->ct.wka_port = &adapter->gs->ts;
+ wka_port = &adapter->gs->ts;
break;
case FC_FST_DIR:
- ct_fc_job->ct.wka_port = &adapter->gs->ds;
+ wka_port = &adapter->gs->ds;
break;
default:
- kfree(ct_fc_job);
return -EINVAL; /* no such service */
}
- ret = zfcp_fc_wka_port_get(ct_fc_job->ct.wka_port);
- if (ret) {
- kfree(ct_fc_job);
+ ret = zfcp_fc_wka_port_get(wka_port);
+ if (ret)
return ret;
- }
- ct_fc_job->ct.req = job->request_payload.sg_list;
- ct_fc_job->ct.resp = job->reply_payload.sg_list;
- ct_fc_job->ct.handler = zfcp_fc_generic_ct_handler;
- ct_fc_job->ct.handler_data = (unsigned long) ct_fc_job;
- ct_fc_job->ct.completion = NULL;
- ct_fc_job->job = job;
+ ret = zfcp_fsf_send_ct(wka_port, ct, NULL);
+ if (ret)
+ zfcp_fc_wka_port_put(wka_port);
- ret = zfcp_fsf_send_ct(&ct_fc_job->ct, NULL);
- if (ret) {
- kfree(ct_fc_job);
- zfcp_fc_wka_port_put(ct_fc_job->ct.wka_port);
- }
return ret;
}
+int zfcp_fc_exec_bsg_job(struct fc_bsg_job *job)
+{
+ struct Scsi_Host *shost;
+ struct zfcp_adapter *adapter;
+ struct zfcp_fsf_ct_els *ct_els = job->dd_data;
+
+ shost = job->rport ? rport_to_shost(job->rport) : job->shost;
+ adapter = (struct zfcp_adapter *)shost->hostdata[0];
+
+ if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN))
+ return -EINVAL;
+
+ ct_els->req = job->request_payload.sg_list;
+ ct_els->resp = job->reply_payload.sg_list;
+ ct_els->handler = zfcp_fc_ct_els_job_handler;
+ ct_els->handler_data = job;
+
+ switch (job->request->msgcode) {
+ case FC_BSG_RPT_ELS:
+ case FC_BSG_HST_ELS_NOLOGIN:
+ return zfcp_fc_exec_els_job(job, adapter);
+ case FC_BSG_RPT_CT:
+ case FC_BSG_HST_CT:
+ return zfcp_fc_exec_ct_job(job, adapter);
+ default:
+ return -EINVAL;
+ }
+}
+
int zfcp_fc_gs_setup(struct zfcp_adapter *adapter)
{
- struct zfcp_wka_ports *wka_ports;
+ struct zfcp_fc_wka_ports *wka_ports;
- wka_ports = kzalloc(sizeof(struct zfcp_wka_ports), GFP_KERNEL);
+ wka_ports = kzalloc(sizeof(struct zfcp_fc_wka_ports), GFP_KERNEL);
if (!wka_ports)
return -ENOMEM;
@@ -880,7 +780,6 @@ int zfcp_fc_gs_setup(struct zfcp_adapter *adapter)
zfcp_fc_wka_port_init(&wka_ports->ts, FC_FID_TIME_SERV, adapter);
zfcp_fc_wka_port_init(&wka_ports->ds, FC_FID_DIR_SERV, adapter);
zfcp_fc_wka_port_init(&wka_ports->as, FC_FID_ALIASES, adapter);
- zfcp_fc_wka_port_init(&wka_ports->ks, FC_FID_SEC_KEY, adapter);
return 0;
}
diff --git a/drivers/s390/scsi/zfcp_fc.h b/drivers/s390/scsi/zfcp_fc.h
new file mode 100644
index 000000000000..cb2a3669a384
--- /dev/null
+++ b/drivers/s390/scsi/zfcp_fc.h
@@ -0,0 +1,260 @@
+/*
+ * zfcp device driver
+ *
+ * Fibre Channel related definitions and inline functions for the zfcp
+ * device driver
+ *
+ * Copyright IBM Corporation 2009
+ */
+
+#ifndef ZFCP_FC_H
+#define ZFCP_FC_H
+
+#include <scsi/fc/fc_els.h>
+#include <scsi/fc/fc_fcp.h>
+#include <scsi/fc/fc_ns.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_tcq.h>
+#include "zfcp_fsf.h"
+
+#define ZFCP_FC_CT_SIZE_PAGE (PAGE_SIZE - sizeof(struct fc_ct_hdr))
+#define ZFCP_FC_GPN_FT_ENT_PAGE (ZFCP_FC_CT_SIZE_PAGE \
+ / sizeof(struct fc_gpn_ft_resp))
+#define ZFCP_FC_GPN_FT_NUM_BUFS 4 /* memory pages */
+
+#define ZFCP_FC_GPN_FT_MAX_SIZE (ZFCP_FC_GPN_FT_NUM_BUFS * PAGE_SIZE \
+ - sizeof(struct fc_ct_hdr))
+#define ZFCP_FC_GPN_FT_MAX_ENT (ZFCP_FC_GPN_FT_NUM_BUFS * \
+ (ZFCP_FC_GPN_FT_ENT_PAGE + 1))
+
+/**
+ * struct zfcp_fc_gid_pn_req - container for ct header plus gid_pn request
+ * @ct_hdr: FC GS common transport header
+ * @gid_pn: GID_PN request
+ */
+struct zfcp_fc_gid_pn_req {
+ struct fc_ct_hdr ct_hdr;
+ struct fc_ns_gid_pn gid_pn;
+} __packed;
+
+/**
+ * struct zfcp_fc_gid_pn_resp - container for ct header plus gid_pn response
+ * @ct_hdr: FC GS common transport header
+ * @gid_pn: GID_PN response
+ */
+struct zfcp_fc_gid_pn_resp {
+ struct fc_ct_hdr ct_hdr;
+ struct fc_gid_pn_resp gid_pn;
+} __packed;
+
+/**
+ * struct zfcp_fc_gid_pn - everything required in zfcp for gid_pn request
+ * @ct: data passed to zfcp_fsf for issuing fsf request
+ * @sg_req: scatterlist entry for request data
+ * @sg_resp: scatterlist entry for response data
+ * @gid_pn_req: GID_PN request data
+ * @gid_pn_resp: GID_PN response data
+ */
+struct zfcp_fc_gid_pn {
+ struct zfcp_fsf_ct_els ct;
+ struct scatterlist sg_req;
+ struct scatterlist sg_resp;
+ struct zfcp_fc_gid_pn_req gid_pn_req;
+ struct zfcp_fc_gid_pn_resp gid_pn_resp;
+ struct zfcp_port *port;
+};
+
+/**
+ * struct zfcp_fc_gpn_ft - container for ct header plus gpn_ft request
+ * @ct_hdr: FC GS common transport header
+ * @gpn_ft: GPN_FT request
+ */
+struct zfcp_fc_gpn_ft_req {
+ struct fc_ct_hdr ct_hdr;
+ struct fc_ns_gid_ft gpn_ft;
+} __packed;
+
+/**
+ * struct zfcp_fc_gpn_ft_resp - container for ct header plus gpn_ft response
+ * @ct_hdr: FC GS common transport header
+ * @gpn_ft: Array of gpn_ft response data to fill one memory page
+ */
+struct zfcp_fc_gpn_ft_resp {
+ struct fc_ct_hdr ct_hdr;
+ struct fc_gpn_ft_resp gpn_ft[ZFCP_FC_GPN_FT_ENT_PAGE];
+} __packed;
+
+/**
+ * struct zfcp_fc_gpn_ft - zfcp data for gpn_ft request
+ * @ct: data passed to zfcp_fsf for issuing fsf request
+ * @sg_req: scatter list entry for gpn_ft request
+ * @sg_resp: scatter list entries for gpn_ft responses (per memory page)
+ */
+struct zfcp_fc_gpn_ft {
+ struct zfcp_fsf_ct_els ct;
+ struct scatterlist sg_req;
+ struct scatterlist sg_resp[ZFCP_FC_GPN_FT_NUM_BUFS];
+};
+
+/**
+ * struct zfcp_fc_els_adisc - everything required in zfcp for issuing ELS ADISC
+ * @els: data required for issuing els fsf command
+ * @req: scatterlist entry for ELS ADISC request
+ * @resp: scatterlist entry for ELS ADISC response
+ * @adisc_req: ELS ADISC request data
+ * @adisc_resp: ELS ADISC response data
+ */
+struct zfcp_fc_els_adisc {
+ struct zfcp_fsf_ct_els els;
+ struct scatterlist req;
+ struct scatterlist resp;
+ struct fc_els_adisc adisc_req;
+ struct fc_els_adisc adisc_resp;
+};
+
+/**
+ * enum zfcp_fc_wka_status - FC WKA port status in zfcp
+ * @ZFCP_FC_WKA_PORT_OFFLINE: Port is closed and not in use
+ * @ZFCP_FC_WKA_PORT_CLOSING: The FSF "close port" request is pending
+ * @ZFCP_FC_WKA_PORT_OPENING: The FSF "open port" request is pending
+ * @ZFCP_FC_WKA_PORT_ONLINE: The port is open and the port handle is valid
+ */
+enum zfcp_fc_wka_status {
+ ZFCP_FC_WKA_PORT_OFFLINE,
+ ZFCP_FC_WKA_PORT_CLOSING,
+ ZFCP_FC_WKA_PORT_OPENING,
+ ZFCP_FC_WKA_PORT_ONLINE,
+};
+
+/**
+ * struct zfcp_fc_wka_port - representation of well-known-address (WKA) FC port
+ * @adapter: Pointer to adapter structure this WKA port belongs to
+ * @completion_wq: Wait for completion of open/close command
+ * @status: Current status of WKA port
+ * @refcount: Reference count to keep port open as long as it is in use
+ * @d_id: FC destination id or well-known-address
+ * @handle: FSF handle for the open WKA port
+ * @mutex: Mutex used during opening/closing state changes
+ * @work: For delaying the closing of the WKA port
+ */
+struct zfcp_fc_wka_port {
+ struct zfcp_adapter *adapter;
+ wait_queue_head_t completion_wq;
+ enum zfcp_fc_wka_status status;
+ atomic_t refcount;
+ u32 d_id;
+ u32 handle;
+ struct mutex mutex;
+ struct delayed_work work;
+};
+
+/**
+ * struct zfcp_fc_wka_ports - Data structures for FC generic services
+ * @ms: FC Management service
+ * @ts: FC time service
+ * @ds: FC directory service
+ * @as: FC alias service
+ */
+struct zfcp_fc_wka_ports {
+ struct zfcp_fc_wka_port ms;
+ struct zfcp_fc_wka_port ts;
+ struct zfcp_fc_wka_port ds;
+ struct zfcp_fc_wka_port as;
+};
+
+/**
+ * zfcp_fc_scsi_to_fcp - setup FCP command with data from scsi_cmnd
+ * @fcp: fcp_cmnd to setup
+ * @scsi: scsi_cmnd where to get LUN, task attributes/flags and CDB
+ */
+static inline
+void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi)
+{
+ char tag[2];
+
+ int_to_scsilun(scsi->device->lun, (struct scsi_lun *) &fcp->fc_lun);
+
+ if (scsi_populate_tag_msg(scsi, tag)) {
+ switch (tag[0]) {
+ case MSG_ORDERED_TAG:
+ fcp->fc_pri_ta |= FCP_PTA_ORDERED;
+ break;
+ case MSG_SIMPLE_TAG:
+ fcp->fc_pri_ta |= FCP_PTA_SIMPLE;
+ break;
+ };
+ } else
+ fcp->fc_pri_ta = FCP_PTA_SIMPLE;
+
+ if (scsi->sc_data_direction == DMA_FROM_DEVICE)
+ fcp->fc_flags |= FCP_CFL_RDDATA;
+ if (scsi->sc_data_direction == DMA_TO_DEVICE)
+ fcp->fc_flags |= FCP_CFL_WRDATA;
+
+ memcpy(fcp->fc_cdb, scsi->cmnd, scsi->cmd_len);
+
+ fcp->fc_dl = scsi_bufflen(scsi);
+}
+
+/**
+ * zfcp_fc_fcp_tm - setup FCP command as task management command
+ * @fcp: fcp_cmnd to setup
+ * @dev: scsi_device where to send the task management command
+ * @tm: task management flags to setup tm command
+ */
+static inline
+void zfcp_fc_fcp_tm(struct fcp_cmnd *fcp, struct scsi_device *dev, u8 tm_flags)
+{
+ int_to_scsilun(dev->lun, (struct scsi_lun *) &fcp->fc_lun);
+ fcp->fc_tm_flags |= tm_flags;
+}
+
+/**
+ * zfcp_fc_evap_fcp_rsp - evaluate FCP RSP IU and update scsi_cmnd accordingly
+ * @fcp_rsp: FCP RSP IU to evaluate
+ * @scsi: SCSI command where to update status and sense buffer
+ */
+static inline
+void zfcp_fc_eval_fcp_rsp(struct fcp_resp_with_ext *fcp_rsp,
+ struct scsi_cmnd *scsi)
+{
+ struct fcp_resp_rsp_info *rsp_info;
+ char *sense;
+ u32 sense_len, resid;
+ u8 rsp_flags;
+
+ set_msg_byte(scsi, COMMAND_COMPLETE);
+ scsi->result |= fcp_rsp->resp.fr_status;
+
+ rsp_flags = fcp_rsp->resp.fr_flags;
+
+ if (unlikely(rsp_flags & FCP_RSP_LEN_VAL)) {
+ rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1];
+ if (rsp_info->rsp_code == FCP_TMF_CMPL)
+ set_host_byte(scsi, DID_OK);
+ else {
+ set_host_byte(scsi, DID_ERROR);
+ return;
+ }
+ }
+
+ if (unlikely(rsp_flags & FCP_SNS_LEN_VAL)) {
+ sense = (char *) &fcp_rsp[1];
+ if (rsp_flags & FCP_RSP_LEN_VAL)
+ sense += fcp_rsp->ext.fr_sns_len;
+ sense_len = min(fcp_rsp->ext.fr_sns_len,
+ (u32) SCSI_SENSE_BUFFERSIZE);
+ memcpy(scsi->sense_buffer, sense, sense_len);
+ }
+
+ if (unlikely(rsp_flags & FCP_RESID_UNDER)) {
+ resid = fcp_rsp->ext.fr_resid;
+ scsi_set_resid(scsi, resid);
+ if (scsi_bufflen(scsi) - resid < scsi->underflow &&
+ !(rsp_flags & FCP_SNS_LEN_VAL) &&
+ fcp_rsp->resp.fr_status == SAM_STAT_GOOD)
+ set_host_byte(scsi, DID_ERROR);
+ }
+}
+
+#endif
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 4e41baa0c141..482dcd97aa5d 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -10,7 +10,9 @@
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/blktrace_api.h>
+#include <scsi/fc/fc_els.h>
#include "zfcp_ext.h"
+#include "zfcp_fc.h"
#include "zfcp_dbf.h"
static void zfcp_fsf_request_timeout_handler(unsigned long data)
@@ -122,36 +124,32 @@ void zfcp_fsf_req_free(struct zfcp_fsf_req *req)
static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req)
{
+ unsigned long flags;
struct fsf_status_read_buffer *sr_buf = req->data;
struct zfcp_adapter *adapter = req->adapter;
struct zfcp_port *port;
- int d_id = sr_buf->d_id & ZFCP_DID_MASK;
- unsigned long flags;
+ int d_id = ntoh24(sr_buf->d_id);
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- list_for_each_entry(port, &adapter->port_list_head, list)
+ read_lock_irqsave(&adapter->port_list_lock, flags);
+ list_for_each_entry(port, &adapter->port_list, list)
if (port->d_id == d_id) {
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
zfcp_erp_port_reopen(port, 0, "fssrpc1", req);
- return;
+ break;
}
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
+ read_unlock_irqrestore(&adapter->port_list_lock, flags);
}
static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id,
struct fsf_link_down_info *link_down)
{
struct zfcp_adapter *adapter = req->adapter;
- unsigned long flags;
if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED)
return;
atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);
- read_lock_irqsave(&zfcp_data.config_lock, flags);
zfcp_scsi_schedule_rports_block(adapter);
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
if (!link_down)
goto out;
@@ -291,7 +289,7 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
zfcp_erp_adapter_access_changed(adapter, "fssrh_3",
req);
if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS)
- schedule_work(&adapter->scan_work);
+ queue_work(adapter->work_queue, &adapter->scan_work);
break;
case FSF_STATUS_READ_CFDC_UPDATED:
zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req);
@@ -317,7 +315,6 @@ static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req)
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
return;
case FSF_SQ_COMMAND_ABORTED:
- req->status |= ZFCP_STATUS_FSFREQ_ABORTED;
break;
case FSF_SQ_NO_RECOM:
dev_err(&req->adapter->ccw_device->dev,
@@ -358,8 +355,7 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
zfcp_dbf_hba_fsf_response(req);
if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) {
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
return;
}
@@ -377,7 +373,7 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
case FSF_PROT_ERROR_STATE:
case FSF_PROT_SEQ_NUMB_ERROR:
zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req);
- req->status |= ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PROT_UNSUPP_QTCB_TYPE:
dev_err(&adapter->ccw_device->dev,
@@ -480,20 +476,27 @@ void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter)
static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
{
- struct fsf_qtcb_bottom_config *bottom;
+ struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config;
struct zfcp_adapter *adapter = req->adapter;
struct Scsi_Host *shost = adapter->scsi_host;
+ struct fc_els_flogi *nsp, *plogi;
- bottom = &req->qtcb->bottom.config;
+ /* adjust pointers for missing command code */
+ nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param
+ - sizeof(u32));
+ plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload
+ - sizeof(u32));
if (req->data)
memcpy(req->data, bottom, sizeof(*bottom));
- fc_host_node_name(shost) = bottom->nport_serv_param.wwnn;
- fc_host_port_name(shost) = bottom->nport_serv_param.wwpn;
- fc_host_port_id(shost) = bottom->s_id & ZFCP_DID_MASK;
+ fc_host_port_name(shost) = nsp->fl_wwpn;
+ fc_host_node_name(shost) = nsp->fl_wwnn;
+ fc_host_port_id(shost) = ntoh24(bottom->s_id);
fc_host_speed(shost) = bottom->fc_link_speed;
fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3;
+ fc_host_supported_fc4s(shost)[2] = 1; /* FCP */
+ fc_host_active_fc4s(shost)[2] = 1; /* FCP */
adapter->hydra_version = bottom->adapter_type;
adapter->timer_ticks = bottom->timer_interval;
@@ -503,9 +506,9 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
switch (bottom->fc_topology) {
case FSF_TOPO_P2P:
- adapter->peer_d_id = bottom->peer_d_id & ZFCP_DID_MASK;
- adapter->peer_wwpn = bottom->plogi_payload.wwpn;
- adapter->peer_wwnn = bottom->plogi_payload.wwnn;
+ adapter->peer_d_id = ntoh24(bottom->peer_d_id);
+ adapter->peer_wwpn = plogi->fl_wwpn;
+ adapter->peer_wwnn = plogi->fl_wwnn;
fc_host_port_type(shost) = FC_PORTTYPE_PTP;
break;
case FSF_TOPO_FABRIC:
@@ -881,13 +884,11 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, "fsafch3", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_BOXED:
zfcp_erp_unit_boxed(unit, "fsafch4", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (fsq->word[0]) {
@@ -958,10 +959,10 @@ out:
static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
{
struct zfcp_adapter *adapter = req->adapter;
- struct zfcp_send_ct *send_ct = req->data;
+ struct zfcp_fsf_ct_els *ct = req->data;
struct fsf_qtcb_header *header = &req->qtcb->header;
- send_ct->status = -EINVAL;
+ ct->status = -EINVAL;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
goto skip_fsfstatus;
@@ -969,7 +970,7 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
switch (header->fsf_status) {
case FSF_GOOD:
zfcp_dbf_san_ct_response(req);
- send_ct->status = 0;
+ ct->status = 0;
break;
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
zfcp_fsf_class_not_supp(req);
@@ -985,8 +986,7 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
case FSF_ACCESS_DENIED:
break;
case FSF_PORT_BOXED:
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PORT_HANDLE_NOT_VALID:
zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req);
@@ -1001,8 +1001,8 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
}
skip_fsfstatus:
- if (send_ct->handler)
- send_ct->handler(send_ct->handler_data);
+ if (ct->handler)
+ ct->handler(ct->handler_data);
}
static void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale,
@@ -1071,15 +1071,17 @@ static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req,
int max_sbals)
{
int ret;
+ unsigned int fcp_chan_timeout;
ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp, max_sbals);
if (ret)
return ret;
/* common settings for ct/gs and els requests */
+ fcp_chan_timeout = 2 * FC_DEF_R_A_TOV / 1000;
req->qtcb->bottom.support.service_class = FSF_CLASS_3;
- req->qtcb->bottom.support.timeout = 2 * R_A_TOV;
- zfcp_fsf_start_timer(req, (2 * R_A_TOV + 10) * HZ);
+ req->qtcb->bottom.support.timeout = fcp_chan_timeout;
+ zfcp_fsf_start_timer(req, (fcp_chan_timeout + 10) * HZ);
return 0;
}
@@ -1089,9 +1091,9 @@ static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req,
* @ct: pointer to struct zfcp_send_ct with data for request
* @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req
*/
-int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool)
+int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port,
+ struct zfcp_fsf_ct_els *ct, mempool_t *pool)
{
- struct zfcp_wka_port *wka_port = ct->wka_port;
struct zfcp_qdio *qdio = wka_port->adapter->qdio;
struct zfcp_fsf_req *req;
int ret = -EIO;
@@ -1117,7 +1119,7 @@ int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool)
req->qtcb->header.port_handle = wka_port->handle;
req->data = ct;
- zfcp_dbf_san_ct_request(req);
+ zfcp_dbf_san_ct_request(req, wka_port->d_id);
ret = zfcp_fsf_req_send(req);
if (ret)
@@ -1134,7 +1136,7 @@ out:
static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
{
- struct zfcp_send_els *send_els = req->data;
+ struct zfcp_fsf_ct_els *send_els = req->data;
struct zfcp_port *port = send_els->port;
struct fsf_qtcb_header *header = &req->qtcb->header;
@@ -1154,9 +1156,6 @@ static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (header->fsf_status_qual.word[0]){
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
- if (port && (send_els->ls_code != ZFCP_LS_ADISC))
- zfcp_fc_test_link(port);
- /*fall through */
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
case FSF_SQ_RETRY_IF_POSSIBLE:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
@@ -1188,10 +1187,11 @@ skip_fsfstatus:
* zfcp_fsf_send_els - initiate an ELS command (FC-FS)
* @els: pointer to struct zfcp_send_els with data for the command
*/
-int zfcp_fsf_send_els(struct zfcp_send_els *els)
+int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id,
+ struct zfcp_fsf_ct_els *els)
{
struct zfcp_fsf_req *req;
- struct zfcp_qdio *qdio = els->adapter->qdio;
+ struct zfcp_qdio *qdio = adapter->qdio;
int ret = -EIO;
spin_lock_bh(&qdio->req_q_lock);
@@ -1211,7 +1211,7 @@ int zfcp_fsf_send_els(struct zfcp_send_els *els)
if (ret)
goto failed_send;
- req->qtcb->bottom.support.d_id = els->d_id;
+ hton24(req->qtcb->bottom.support.d_id, d_id);
req->handler = zfcp_fsf_send_els_handler;
req->data = els;
@@ -1422,7 +1422,7 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
{
struct zfcp_port *port = req->data;
struct fsf_qtcb_header *header = &req->qtcb->header;
- struct fsf_plogi *plogi;
+ struct fc_els_flogi *plogi;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
goto out;
@@ -1472,23 +1472,10 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
* another GID_PN straight after a port has been opened.
* Alternately, an ADISC/PDISC ELS should suffice, as well.
*/
- plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els;
+ plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els;
if (req->qtcb->bottom.support.els1_length >=
- FSF_PLOGI_MIN_LEN) {
- if (plogi->serv_param.wwpn != port->wwpn) {
- port->d_id = 0;
- dev_warn(&port->adapter->ccw_device->dev,
- "A port opened with WWPN 0x%016Lx "
- "returned data that identifies it as "
- "WWPN 0x%016Lx\n",
- (unsigned long long) port->wwpn,
- (unsigned long long)
- plogi->serv_param.wwpn);
- } else {
- port->wwnn = plogi->serv_param.wwnn;
+ FSF_PLOGI_MIN_LEN)
zfcp_fc_plogi_evaluate(port, plogi);
- }
- }
break;
case FSF_UNKNOWN_OP_SUBTYPE:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
@@ -1496,7 +1483,7 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
}
out:
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
}
/**
@@ -1530,18 +1517,18 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_open_port_handler;
- req->qtcb->bottom.support.d_id = port->d_id;
+ hton24(req->qtcb->bottom.support.d_id, port->d_id);
req->data = port;
req->erp_action = erp_action;
erp_action->fsf_req = req;
- zfcp_port_get(port);
+ get_device(&port->sysfs_device);
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
erp_action->fsf_req = NULL;
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
}
out:
spin_unlock_bh(&qdio->req_q_lock);
@@ -1618,11 +1605,11 @@ out:
static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
{
- struct zfcp_wka_port *wka_port = req->data;
+ struct zfcp_fc_wka_port *wka_port = req->data;
struct fsf_qtcb_header *header = &req->qtcb->header;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR) {
- wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
goto out;
}
@@ -1635,13 +1622,13 @@ static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
/* fall through */
case FSF_ACCESS_DENIED:
- wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
break;
case FSF_GOOD:
wka_port->handle = header->port_handle;
/* fall through */
case FSF_PORT_ALREADY_OPEN:
- wka_port->status = ZFCP_WKA_PORT_ONLINE;
+ wka_port->status = ZFCP_FC_WKA_PORT_ONLINE;
}
out:
wake_up(&wka_port->completion_wq);
@@ -1649,10 +1636,10 @@ out:
/**
* zfcp_fsf_open_wka_port - create and send open wka-port request
- * @wka_port: pointer to struct zfcp_wka_port
+ * @wka_port: pointer to struct zfcp_fc_wka_port
* Returns: 0 on success, error otherwise
*/
-int zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port)
+int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port)
{
struct qdio_buffer_element *sbale;
struct zfcp_qdio *qdio = wka_port->adapter->qdio;
@@ -1677,7 +1664,7 @@ int zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port)
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_open_wka_port_handler;
- req->qtcb->bottom.support.d_id = wka_port->d_id;
+ hton24(req->qtcb->bottom.support.d_id, wka_port->d_id);
req->data = wka_port;
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
@@ -1691,23 +1678,23 @@ out:
static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req)
{
- struct zfcp_wka_port *wka_port = req->data;
+ struct zfcp_fc_wka_port *wka_port = req->data;
if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) {
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req);
}
- wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+ wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
wake_up(&wka_port->completion_wq);
}
/**
* zfcp_fsf_close_wka_port - create and send close wka port request
- * @erp_action: pointer to struct zfcp_erp_action
+ * @wka_port: WKA port to open
* Returns: 0 on success, error otherwise
*/
-int zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port)
+int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port)
{
struct qdio_buffer_element *sbale;
struct zfcp_qdio *qdio = wka_port->adapter->qdio;
@@ -1765,13 +1752,13 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
/* can't use generic zfcp_erp_modify_port_status because
* ZFCP_STATUS_COMMON_OPEN must not be reset for the port */
atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
- list_for_each_entry(unit, &port->unit_list_head, list)
+ read_lock(&port->unit_list_lock);
+ list_for_each_entry(unit, &port->unit_list, list)
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
&unit->status);
+ read_unlock(&port->unit_list_lock);
zfcp_erp_port_boxed(port, "fscpph2", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
-
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (header->fsf_status_qual.word[0]) {
@@ -1787,9 +1774,11 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
* ZFCP_STATUS_COMMON_OPEN must not be reset for the port
*/
atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
- list_for_each_entry(unit, &port->unit_list_head, list)
+ read_lock(&port->unit_list_lock);
+ list_for_each_entry(unit, &port->unit_list, list)
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
&unit->status);
+ read_unlock(&port->unit_list_lock);
break;
}
}
@@ -1873,8 +1862,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, "fsouh_2", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_SHARING_VIOLATION:
if (header->fsf_status_qual.word[0])
@@ -2036,8 +2024,7 @@ static void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req)
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, "fscuh_3", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (req->qtcb->header.fsf_status_qual.word[0]) {
@@ -2109,72 +2096,57 @@ static void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat)
lat_rec->max = max(lat_rec->max, lat);
}
-static void zfcp_fsf_req_latency(struct zfcp_fsf_req *req)
+static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
{
- struct fsf_qual_latency_info *lat_inf;
- struct latency_cont *lat;
+ struct fsf_qual_latency_info *lat_in;
+ struct latency_cont *lat = NULL;
struct zfcp_unit *unit = req->unit;
+ struct zfcp_blk_drv_data blktrc;
+ int ticks = req->adapter->timer_ticks;
- lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info;
-
- switch (req->qtcb->bottom.io.data_direction) {
- case FSF_DATADIR_READ:
- lat = &unit->latencies.read;
- break;
- case FSF_DATADIR_WRITE:
- lat = &unit->latencies.write;
- break;
- case FSF_DATADIR_CMND:
- lat = &unit->latencies.cmd;
- break;
- default:
- return;
- }
+ lat_in = &req->qtcb->prefix.prot_status_qual.latency_info;
- spin_lock(&unit->latencies.lock);
- zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat);
- zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat);
- lat->counter++;
- spin_unlock(&unit->latencies.lock);
-}
-
-#ifdef CONFIG_BLK_DEV_IO_TRACE
-static void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req)
-{
- struct fsf_qual_latency_info *lat_inf;
- struct scsi_cmnd *scsi_cmnd = (struct scsi_cmnd *)fsf_req->data;
- struct request *req = scsi_cmnd->request;
- struct zfcp_blk_drv_data trace;
- int ticks = fsf_req->adapter->timer_ticks;
+ blktrc.flags = 0;
+ blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC;
+ if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
+ blktrc.flags |= ZFCP_BLK_REQ_ERROR;
+ blktrc.inb_usage = req->queue_req.qdio_inb_usage;
+ blktrc.outb_usage = req->queue_req.qdio_outb_usage;
+
+ if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) {
+ blktrc.flags |= ZFCP_BLK_LAT_VALID;
+ blktrc.channel_lat = lat_in->channel_lat * ticks;
+ blktrc.fabric_lat = lat_in->fabric_lat * ticks;
+
+ switch (req->qtcb->bottom.io.data_direction) {
+ case FSF_DATADIR_READ:
+ lat = &unit->latencies.read;
+ break;
+ case FSF_DATADIR_WRITE:
+ lat = &unit->latencies.write;
+ break;
+ case FSF_DATADIR_CMND:
+ lat = &unit->latencies.cmd;
+ break;
+ }
- trace.flags = 0;
- trace.magic = ZFCP_BLK_DRV_DATA_MAGIC;
- if (fsf_req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) {
- trace.flags |= ZFCP_BLK_LAT_VALID;
- lat_inf = &fsf_req->qtcb->prefix.prot_status_qual.latency_info;
- trace.channel_lat = lat_inf->channel_lat * ticks;
- trace.fabric_lat = lat_inf->fabric_lat * ticks;
+ if (lat) {
+ spin_lock(&unit->latencies.lock);
+ zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat);
+ zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat);
+ lat->counter++;
+ spin_unlock(&unit->latencies.lock);
+ }
}
- if (fsf_req->status & ZFCP_STATUS_FSFREQ_ERROR)
- trace.flags |= ZFCP_BLK_REQ_ERROR;
- trace.inb_usage = fsf_req->queue_req.qdio_inb_usage;
- trace.outb_usage = fsf_req->queue_req.qdio_outb_usage;
- blk_add_driver_data(req->q, req, &trace, sizeof(trace));
-}
-#else
-static inline void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req)
-{
+ blk_add_driver_data(scsi->request->q, scsi->request, &blktrc,
+ sizeof(blktrc));
}
-#endif
static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req)
{
struct scsi_cmnd *scpnt;
- struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *)
- &(req->qtcb->bottom.io.fcp_rsp);
- u32 sns_len;
- char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1];
+ struct fcp_resp_with_ext *fcp_rsp;
unsigned long flags;
read_lock_irqsave(&req->adapter->abort_lock, flags);
@@ -2185,50 +2157,16 @@ static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req)
return;
}
- if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) {
- set_host_byte(scpnt, DID_SOFT_ERROR);
- goto skip_fsfstatus;
- }
-
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) {
- set_host_byte(scpnt, DID_ERROR);
+ set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED);
goto skip_fsfstatus;
}
- set_msg_byte(scpnt, COMMAND_COMPLETE);
-
- scpnt->result |= fcp_rsp_iu->scsi_status;
+ fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp;
+ zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt);
- if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA)
- zfcp_fsf_req_latency(req);
-
- zfcp_fsf_trace_latency(req);
-
- if (unlikely(fcp_rsp_iu->validity.bits.fcp_rsp_len_valid)) {
- if (fcp_rsp_info[3] == RSP_CODE_GOOD)
- set_host_byte(scpnt, DID_OK);
- else {
- set_host_byte(scpnt, DID_ERROR);
- goto skip_fsfstatus;
- }
- }
-
- if (unlikely(fcp_rsp_iu->validity.bits.fcp_sns_len_valid)) {
- sns_len = FSF_FCP_RSP_SIZE - sizeof(struct fcp_rsp_iu) +
- fcp_rsp_iu->fcp_rsp_len;
- sns_len = min(sns_len, (u32) SCSI_SENSE_BUFFERSIZE);
- sns_len = min(sns_len, fcp_rsp_iu->fcp_sns_len);
-
- memcpy(scpnt->sense_buffer,
- zfcp_get_fcp_sns_info_ptr(fcp_rsp_iu), sns_len);
- }
+ zfcp_fsf_req_trace(req, scpnt);
- if (unlikely(fcp_rsp_iu->validity.bits.fcp_resid_under)) {
- scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid);
- if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) <
- scpnt->underflow)
- set_host_byte(scpnt, DID_ERROR);
- }
skip_fsfstatus:
if (scpnt->result != 0)
zfcp_dbf_scsi_result("erro", 3, req->adapter->dbf, scpnt, req);
@@ -2250,11 +2188,13 @@ skip_fsfstatus:
static void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req)
{
- struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *)
- &(req->qtcb->bottom.io.fcp_rsp);
- char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1];
+ struct fcp_resp_with_ext *fcp_rsp;
+ struct fcp_resp_rsp_info *rsp_info;
+
+ fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp;
+ rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1];
- if ((fcp_rsp_info[3] != RSP_CODE_GOOD) ||
+ if ((rsp_info->rsp_code != FCP_TMF_CMPL) ||
(req->status & ZFCP_STATUS_FSFREQ_ERROR))
req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED;
}
@@ -2314,13 +2254,11 @@ static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req)
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, "fssfch5", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_BOXED:
zfcp_erp_unit_boxed(unit, "fssfch6", req);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR |
- ZFCP_STATUS_FSFREQ_RETRY;
+ req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
if (header->fsf_status_qual.word[0] ==
@@ -2335,24 +2273,10 @@ skip_fsfstatus:
else {
zfcp_fsf_send_fcp_command_task_handler(req);
req->unit = NULL;
- zfcp_unit_put(unit);
+ put_device(&unit->sysfs_device);
}
}
-static void zfcp_set_fcp_dl(struct fcp_cmnd_iu *fcp_cmd, u32 fcp_dl)
-{
- u32 *fcp_dl_ptr;
-
- /*
- * fcp_dl_addr = start address of fcp_cmnd structure +
- * size of fixed part + size of dynamically sized add_dcp_cdb field
- * SEE FCP-2 documentation
- */
- fcp_dl_ptr = (u32 *) ((unsigned char *) &fcp_cmd[1] +
- (fcp_cmd->add_fcp_cdb_length << 2));
- *fcp_dl_ptr = fcp_dl;
-}
-
/**
* zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command)
* @unit: unit where command is sent to
@@ -2362,7 +2286,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
struct scsi_cmnd *scsi_cmnd)
{
struct zfcp_fsf_req *req;
- struct fcp_cmnd_iu *fcp_cmnd_iu;
+ struct fcp_cmnd *fcp_cmnd;
unsigned int sbtype = SBAL_FLAGS0_TYPE_READ;
int real_bytes, retval = -EIO;
struct zfcp_adapter *adapter = unit->port->adapter;
@@ -2387,23 +2311,21 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
- zfcp_unit_get(unit);
+ get_device(&unit->sysfs_device);
req->unit = unit;
req->data = scsi_cmnd;
req->handler = zfcp_fsf_send_fcp_command_handler;
req->qtcb->header.lun_handle = unit->handle;
req->qtcb->header.port_handle = unit->port->handle;
req->qtcb->bottom.io.service_class = FSF_CLASS_3;
+ req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN;
scsi_cmnd->host_scribble = (unsigned char *) req->req_id;
- fcp_cmnd_iu = (struct fcp_cmnd_iu *) &(req->qtcb->bottom.io.fcp_cmnd);
- fcp_cmnd_iu->fcp_lun = unit->fcp_lun;
/*
* set depending on data direction:
* data direction bits in SBALE (SB Type)
* data direction bits in QTCB
- * data direction bits in FCP_CMND IU
*/
switch (scsi_cmnd->sc_data_direction) {
case DMA_NONE:
@@ -2411,32 +2333,17 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
break;
case DMA_FROM_DEVICE:
req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ;
- fcp_cmnd_iu->rddata = 1;
break;
case DMA_TO_DEVICE:
req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE;
sbtype = SBAL_FLAGS0_TYPE_WRITE;
- fcp_cmnd_iu->wddata = 1;
break;
case DMA_BIDIRECTIONAL:
goto failed_scsi_cmnd;
}
- if (likely((scsi_cmnd->device->simple_tags) ||
- ((atomic_read(&unit->status) & ZFCP_STATUS_UNIT_READONLY) &&
- (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SHARED))))
- fcp_cmnd_iu->task_attribute = SIMPLE_Q;
- else
- fcp_cmnd_iu->task_attribute = UNTAGGED;
-
- if (unlikely(scsi_cmnd->cmd_len > FCP_CDB_LENGTH))
- fcp_cmnd_iu->add_fcp_cdb_length =
- (scsi_cmnd->cmd_len - FCP_CDB_LENGTH) >> 2;
-
- memcpy(fcp_cmnd_iu->fcp_cdb, scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
-
- req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) +
- fcp_cmnd_iu->add_fcp_cdb_length + sizeof(u32);
+ fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
+ zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd);
real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, sbtype,
scsi_sglist(scsi_cmnd),
@@ -2454,8 +2361,6 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
goto failed_scsi_cmnd;
}
- zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes);
-
retval = zfcp_fsf_req_send(req);
if (unlikely(retval))
goto failed_scsi_cmnd;
@@ -2463,7 +2368,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
goto out;
failed_scsi_cmnd:
- zfcp_unit_put(unit);
+ put_device(&unit->sysfs_device);
zfcp_fsf_req_free(req);
scsi_cmnd->host_scribble = NULL;
out:
@@ -2481,7 +2386,7 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
- struct fcp_cmnd_iu *fcp_cmnd_iu;
+ struct fcp_cmnd *fcp_cmnd;
struct zfcp_qdio *qdio = unit->port->adapter->qdio;
if (unlikely(!(atomic_read(&unit->status) &
@@ -2507,16 +2412,14 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
req->qtcb->header.port_handle = unit->port->handle;
req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND;
req->qtcb->bottom.io.service_class = FSF_CLASS_3;
- req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) +
- sizeof(u32);
+ req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN;
sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req);
sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
- fcp_cmnd_iu = (struct fcp_cmnd_iu *) &req->qtcb->bottom.io.fcp_cmnd;
- fcp_cmnd_iu->fcp_lun = unit->fcp_lun;
- fcp_cmnd_iu->task_management_flags = tm_flags;
+ fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
+ zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags);
zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT);
if (!zfcp_fsf_req_send(req))
diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h
index dcc7c1dbcf58..b3de682b64cf 100644
--- a/drivers/s390/scsi/zfcp_fsf.h
+++ b/drivers/s390/scsi/zfcp_fsf.h
@@ -11,6 +11,7 @@
#include <linux/pfn.h>
#include <linux/scatterlist.h>
+#include <scsi/libfc.h>
#define FSF_QTCB_CURRENT_VERSION 0x00000001
@@ -228,7 +229,8 @@ struct fsf_status_read_buffer {
u32 length;
u32 res1;
struct fsf_queue_designator queue_designator;
- u32 d_id;
+ u8 res2;
+ u8 d_id[3];
u32 class;
u64 fcp_lun;
u8 res3[24];
@@ -309,22 +311,7 @@ struct fsf_qtcb_header {
u8 res4[16];
} __attribute__ ((packed));
-struct fsf_nport_serv_param {
- u8 common_serv_param[16];
- u64 wwpn;
- u64 wwnn;
- u8 class1_serv_param[16];
- u8 class2_serv_param[16];
- u8 class3_serv_param[16];
- u8 class4_serv_param[16];
- u8 vendor_version_level[16];
-} __attribute__ ((packed));
-
#define FSF_PLOGI_MIN_LEN 112
-struct fsf_plogi {
- u32 code;
- struct fsf_nport_serv_param serv_param;
-} __attribute__ ((packed));
#define FSF_FCP_CMND_SIZE 288
#define FSF_FCP_RSP_SIZE 128
@@ -342,8 +329,8 @@ struct fsf_qtcb_bottom_io {
struct fsf_qtcb_bottom_support {
u32 operation_subtype;
- u8 res1[12];
- u32 d_id;
+ u8 res1[13];
+ u8 d_id[3];
u32 option;
u64 fcp_lun;
u64 res2;
@@ -372,18 +359,18 @@ struct fsf_qtcb_bottom_config {
u32 fc_topology;
u32 fc_link_speed;
u32 adapter_type;
- u32 peer_d_id;
+ u8 res0;
+ u8 peer_d_id[3];
u8 res1[2];
u16 timer_interval;
- u8 res2[8];
- u32 s_id;
- struct fsf_nport_serv_param nport_serv_param;
- u8 reserved_nport_serv_param[16];
+ u8 res2[9];
+ u8 s_id[3];
+ u8 nport_serv_param[128];
u8 res3[8];
u32 adapter_ports;
u32 hardware_version;
u8 serial_number[32];
- struct fsf_nport_serv_param plogi_payload;
+ u8 plogi_payload[112];
struct fsf_statistics_info stat_info;
u8 res4[112];
} __attribute__ ((packed));
@@ -450,4 +437,22 @@ struct zfcp_blk_drv_data {
u64 fabric_lat;
} __attribute__ ((packed));
+/**
+ * struct zfcp_fsf_ct_els - zfcp data for ct or els request
+ * @req: scatter-gather list for request
+ * @resp: scatter-gather list for response
+ * @handler: handler function (called for response to the request)
+ * @handler_data: data passed to handler function
+ * @port: Optional pointer to port for zfcp internal ELS (only test link ADISC)
+ * @status: used to pass error status to calling function
+ */
+struct zfcp_fsf_ct_els {
+ struct scatterlist *req;
+ struct scatterlist *resp;
+ void (*handler)(void *);
+ void *handler_data;
+ struct zfcp_port *port;
+ int status;
+};
+
#endif /* FSF_H */
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 0e1a34627a2e..771cc536a989 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -9,29 +9,33 @@
#define KMSG_COMPONENT "zfcp"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/types.h>
+#include <scsi/fc/fc_fcp.h>
#include <asm/atomic.h>
#include "zfcp_ext.h"
#include "zfcp_dbf.h"
+#include "zfcp_fc.h"
static unsigned int default_depth = 32;
module_param_named(queue_depth, default_depth, uint, 0600);
MODULE_PARM_DESC(queue_depth, "Default queue depth for new SCSI devices");
-/* Find start of Sense Information in FCP response unit*/
-char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *fcp_rsp_iu)
+static int zfcp_scsi_change_queue_depth(struct scsi_device *sdev, int depth,
+ int reason)
{
- char *fcp_sns_info_ptr;
-
- fcp_sns_info_ptr = (unsigned char *) &fcp_rsp_iu[1];
- if (fcp_rsp_iu->validity.bits.fcp_rsp_len_valid)
- fcp_sns_info_ptr += fcp_rsp_iu->fcp_rsp_len;
-
- return fcp_sns_info_ptr;
-}
-
-static int zfcp_scsi_change_queue_depth(struct scsi_device *sdev, int depth)
-{
- scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+ switch (reason) {
+ case SCSI_QDEPTH_DEFAULT:
+ scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+ break;
+ case SCSI_QDEPTH_QFULL:
+ scsi_track_queue_full(sdev, depth);
+ break;
+ case SCSI_QDEPTH_RAMP_UP:
+ scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
return sdev->queue_depth;
}
@@ -39,7 +43,7 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
{
struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
unit->device = NULL;
- zfcp_unit_put(unit);
+ put_device(&unit->sysfs_device);
}
static int zfcp_scsi_slave_configure(struct scsi_device *sdp)
@@ -99,12 +103,26 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt,
}
status = atomic_read(&unit->status);
- if (unlikely((status & ZFCP_STATUS_COMMON_ERP_FAILED) ||
- !(status & ZFCP_STATUS_COMMON_RUNNING))) {
+ if (unlikely(status & ZFCP_STATUS_COMMON_ERP_FAILED) &&
+ !(atomic_read(&unit->port->status) &
+ ZFCP_STATUS_COMMON_ERP_FAILED)) {
+ /* only unit access denied, but port is good
+ * not covered by FC transport, have to fail here */
zfcp_scsi_command_fail(scpnt, DID_ERROR);
return 0;
}
+ if (unlikely(!(status & ZFCP_STATUS_COMMON_UNBLOCKED))) {
+ /* This could be either
+ * open unit pending: this is temporary, will result in
+ * open unit or ERP_FAILED, so retry command
+ * call to rport_delete pending: mimic retry from
+ * fc_remote_port_chkready until rport is BLOCKED
+ */
+ zfcp_scsi_command_fail(scpnt, DID_IMM_RETRY);
+ return 0;
+ }
+
ret = zfcp_fsf_send_fcp_command_task(unit, scpnt);
if (unlikely(ret == -EBUSY))
return SCSI_MLQUEUE_DEVICE_BUSY;
@@ -115,49 +133,44 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt,
}
static struct zfcp_unit *zfcp_unit_lookup(struct zfcp_adapter *adapter,
- int channel, unsigned int id,
- unsigned int lun)
+ unsigned int id, u64 lun)
{
+ unsigned long flags;
struct zfcp_port *port;
- struct zfcp_unit *unit;
- int scsi_lun;
+ struct zfcp_unit *unit = NULL;
- list_for_each_entry(port, &adapter->port_list_head, list) {
+ read_lock_irqsave(&adapter->port_list_lock, flags);
+ list_for_each_entry(port, &adapter->port_list, list) {
if (!port->rport || (id != port->rport->scsi_target_id))
continue;
- list_for_each_entry(unit, &port->unit_list_head, list) {
- scsi_lun = scsilun_to_int(
- (struct scsi_lun *)&unit->fcp_lun);
- if (lun == scsi_lun)
- return unit;
- }
+ unit = zfcp_get_unit_by_lun(port, lun);
+ if (unit)
+ break;
}
+ read_unlock_irqrestore(&adapter->port_list_lock, flags);
- return NULL;
+ return unit;
}
static int zfcp_scsi_slave_alloc(struct scsi_device *sdp)
{
struct zfcp_adapter *adapter;
struct zfcp_unit *unit;
- unsigned long flags;
- int retval = -ENXIO;
+ u64 lun;
adapter = (struct zfcp_adapter *) sdp->host->hostdata[0];
if (!adapter)
goto out;
- read_lock_irqsave(&zfcp_data.config_lock, flags);
- unit = zfcp_unit_lookup(adapter, sdp->channel, sdp->id, sdp->lun);
+ int_to_scsilun(sdp->lun, (struct scsi_lun *)&lun);
+ unit = zfcp_unit_lookup(adapter, sdp->id, lun);
if (unit) {
sdp->hostdata = unit;
unit->device = sdp;
- zfcp_unit_get(unit);
- retval = 0;
+ return 0;
}
- read_unlock_irqrestore(&zfcp_data.config_lock, flags);
out:
- return retval;
+ return -ENXIO;
}
static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
@@ -196,6 +209,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
break;
zfcp_erp_wait(adapter);
+ fc_block_scsi_eh(scpnt);
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING)) {
zfcp_dbf_scsi_abort("nres", adapter->dbf, scpnt, NULL,
@@ -235,6 +249,7 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
break;
zfcp_erp_wait(adapter);
+ fc_block_scsi_eh(scpnt);
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING)) {
zfcp_dbf_scsi_devreset("nres", tm_flags, unit, scpnt);
@@ -249,9 +264,6 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCFAILED) {
zfcp_dbf_scsi_devreset("fail", tm_flags, unit, scpnt);
retval = FAILED;
- } else if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCNOTSUPP) {
- zfcp_dbf_scsi_devreset("nsup", tm_flags, unit, scpnt);
- retval = FAILED;
} else
zfcp_dbf_scsi_devreset("okay", tm_flags, unit, scpnt);
@@ -261,12 +273,12 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt)
{
- return zfcp_task_mgmt_function(scpnt, FCP_LOGICAL_UNIT_RESET);
+ return zfcp_task_mgmt_function(scpnt, FCP_TMF_LUN_RESET);
}
static int zfcp_scsi_eh_target_reset_handler(struct scsi_cmnd *scpnt)
{
- return zfcp_task_mgmt_function(scpnt, FCP_TARGET_RESET);
+ return zfcp_task_mgmt_function(scpnt, FCP_TMF_TGT_RESET);
}
static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
@@ -276,6 +288,7 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
zfcp_erp_adapter_reopen(adapter, 0, "schrh_1", scpnt);
zfcp_erp_wait(adapter);
+ fc_block_scsi_eh(scpnt);
return SUCCESS;
}
@@ -303,7 +316,7 @@ int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
adapter->scsi_host->max_lun = 1;
adapter->scsi_host->max_channel = 0;
adapter->scsi_host->unique_id = dev_id.devno;
- adapter->scsi_host->max_cmd_len = 255;
+ adapter->scsi_host->max_cmd_len = 16; /* in struct fcp_cmnd */
adapter->scsi_host->transportt = zfcp_data.scsi_transport_template;
adapter->scsi_host->hostdata[0] = (unsigned long) adapter;
@@ -325,12 +338,11 @@ void zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter)
if (!shost)
return;
- read_lock_irq(&zfcp_data.config_lock);
- list_for_each_entry(port, &adapter->port_list_head, list)
- if (port->rport)
- port->rport = NULL;
+ read_lock_irq(&adapter->port_list_lock);
+ list_for_each_entry(port, &adapter->port_list, list)
+ port->rport = NULL;
+ read_unlock_irq(&adapter->port_list_lock);
- read_unlock_irq(&zfcp_data.config_lock);
fc_remove_host(shost);
scsi_remove_host(shost);
scsi_host_put(shost);
@@ -348,7 +360,7 @@ zfcp_init_fc_host_stats(struct zfcp_adapter *adapter)
fc_stats = kmalloc(sizeof(*fc_stats), GFP_KERNEL);
if (!fc_stats)
return NULL;
- adapter->fc_stats = fc_stats; /* freed in adater_dequeue */
+ adapter->fc_stats = fc_stats; /* freed in adapter_release */
}
memset(adapter->fc_stats, 0, sizeof(*adapter->fc_stats));
return adapter->fc_stats;
@@ -464,7 +476,7 @@ static void zfcp_reset_fc_host_stats(struct Scsi_Host *shost)
adapter->stats_reset = jiffies/HZ;
kfree(adapter->stats_reset_data);
adapter->stats_reset_data = data; /* finally freed in
- adapter_dequeue */
+ adapter_release */
}
}
@@ -495,7 +507,7 @@ static void zfcp_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout)
* @rport: The FC rport where to teminate I/O
*
* Abort all pending SCSI commands for a port by closing the
- * port. Using a reopen for avoids a conflict with a shutdown
+ * port. Using a reopen avoiding a conflict with a shutdown
* overwriting a reopen.
*/
static void zfcp_scsi_terminate_rport_io(struct fc_rport *rport)
@@ -505,15 +517,11 @@ static void zfcp_scsi_terminate_rport_io(struct fc_rport *rport)
struct zfcp_adapter *adapter =
(struct zfcp_adapter *)shost->hostdata[0];
- write_lock_irq(&zfcp_data.config_lock);
port = zfcp_get_port_by_wwpn(adapter, rport->port_name);
- if (port)
- zfcp_port_get(port);
- write_unlock_irq(&zfcp_data.config_lock);
if (port) {
zfcp_erp_port_reopen(port, 0, "sctrpi1", NULL);
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
}
}
@@ -555,31 +563,34 @@ static void zfcp_scsi_rport_block(struct zfcp_port *port)
void zfcp_scsi_schedule_rport_register(struct zfcp_port *port)
{
- zfcp_port_get(port);
+ get_device(&port->sysfs_device);
port->rport_task = RPORT_ADD;
if (!queue_work(port->adapter->work_queue, &port->rport_work))
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
}
void zfcp_scsi_schedule_rport_block(struct zfcp_port *port)
{
- zfcp_port_get(port);
+ get_device(&port->sysfs_device);
port->rport_task = RPORT_DEL;
if (port->rport && queue_work(port->adapter->work_queue,
&port->rport_work))
return;
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
}
void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *adapter)
{
+ unsigned long flags;
struct zfcp_port *port;
- list_for_each_entry(port, &adapter->port_list_head, list)
+ read_lock_irqsave(&adapter->port_list_lock, flags);
+ list_for_each_entry(port, &adapter->port_list, list)
zfcp_scsi_schedule_rport_block(port);
+ read_unlock_irqrestore(&adapter->port_list_lock, flags);
}
void zfcp_scsi_rport_work(struct work_struct *work)
@@ -597,7 +608,7 @@ void zfcp_scsi_rport_work(struct work_struct *work)
}
}
- zfcp_port_put(port);
+ put_device(&port->sysfs_device);
}
@@ -615,21 +626,7 @@ void zfcp_scsi_scan(struct work_struct *work)
scsilun_to_int((struct scsi_lun *)
&unit->fcp_lun), 0);
- zfcp_unit_put(unit);
-}
-
-static int zfcp_execute_fc_job(struct fc_bsg_job *job)
-{
- switch (job->request->msgcode) {
- case FC_BSG_RPT_ELS:
- case FC_BSG_HST_ELS_NOLOGIN:
- return zfcp_fc_execute_els_fc_job(job);
- case FC_BSG_RPT_CT:
- case FC_BSG_HST_CT:
- return zfcp_fc_execute_ct_fc_job(job);
- default:
- return -EINVAL;
- }
+ put_device(&unit->sysfs_device);
}
struct fc_function_template zfcp_transport_functions = {
@@ -643,6 +640,7 @@ struct fc_function_template zfcp_transport_functions = {
.show_host_port_name = 1,
.show_host_permanent_port_name = 1,
.show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
.show_host_supported_speeds = 1,
.show_host_maxframe_size = 1,
.show_host_serial_number = 1,
@@ -652,13 +650,15 @@ struct fc_function_template zfcp_transport_functions = {
.get_host_port_state = zfcp_get_host_port_state,
.terminate_rport_io = zfcp_scsi_terminate_rport_io,
.show_host_port_state = 1,
- .bsg_request = zfcp_execute_fc_job,
+ .show_host_active_fc4s = 1,
+ .bsg_request = zfcp_fc_exec_bsg_job,
/* no functions registered for following dynamic attributes but
directly set by LLDD */
.show_host_port_type = 1,
.show_host_speed = 1,
.show_host_port_id = 1,
.disable_target_scan = 1,
+ .dd_bsg_size = sizeof(struct zfcp_fsf_ct_els),
};
struct zfcp_data zfcp_data = {
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index d31000886ca8..f539e006683c 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -3,7 +3,7 @@
*
* sysfs attributes.
*
- * Copyright IBM Corporation 2008
+ * Copyright IBM Corporation 2008, 2009
*/
#define KMSG_COMPONENT "zfcp"
@@ -19,30 +19,44 @@ static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \
struct device_attribute *at,\
char *buf) \
{ \
- struct _feat_def *_feat = dev_get_drvdata(dev); \
+ struct _feat_def *_feat = container_of(dev, struct _feat_def, \
+ sysfs_device); \
\
return sprintf(buf, _format, _value); \
} \
static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \
zfcp_sysfs_##_feat##_##_name##_show, NULL);
-ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, status, "0x%08x\n",
- atomic_read(&adapter->status));
-ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, peer_wwnn, "0x%016llx\n",
- (unsigned long long) adapter->peer_wwnn);
-ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, peer_wwpn, "0x%016llx\n",
- (unsigned long long) adapter->peer_wwpn);
-ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, peer_d_id, "0x%06x\n",
- adapter->peer_d_id);
-ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, card_version, "0x%04x\n",
- adapter->hydra_version);
-ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, lic_version, "0x%08x\n",
- adapter->fsf_lic_version);
-ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, hardware_version, "0x%08x\n",
- adapter->hardware_version);
-ZFCP_DEFINE_ATTR(zfcp_adapter, adapter, in_recovery, "%d\n",
- (atomic_read(&adapter->status) &
- ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
+#define ZFCP_DEFINE_A_ATTR(_name, _format, _value) \
+static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \
+ struct device_attribute *at,\
+ char *buf) \
+{ \
+ struct ccw_device *cdev = to_ccwdev(dev); \
+ struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); \
+ int i; \
+ \
+ if (!adapter) \
+ return -ENODEV; \
+ \
+ i = sprintf(buf, _format, _value); \
+ zfcp_ccw_adapter_put(adapter); \
+ return i; \
+} \
+static ZFCP_DEV_ATTR(adapter, _name, S_IRUGO, \
+ zfcp_sysfs_adapter_##_name##_show, NULL);
+
+ZFCP_DEFINE_A_ATTR(status, "0x%08x\n", atomic_read(&adapter->status));
+ZFCP_DEFINE_A_ATTR(peer_wwnn, "0x%016llx\n",
+ (unsigned long long) adapter->peer_wwnn);
+ZFCP_DEFINE_A_ATTR(peer_wwpn, "0x%016llx\n",
+ (unsigned long long) adapter->peer_wwpn);
+ZFCP_DEFINE_A_ATTR(peer_d_id, "0x%06x\n", adapter->peer_d_id);
+ZFCP_DEFINE_A_ATTR(card_version, "0x%04x\n", adapter->hydra_version);
+ZFCP_DEFINE_A_ATTR(lic_version, "0x%08x\n", adapter->fsf_lic_version);
+ZFCP_DEFINE_A_ATTR(hardware_version, "0x%08x\n", adapter->hardware_version);
+ZFCP_DEFINE_A_ATTR(in_recovery, "%d\n", (atomic_read(&adapter->status) &
+ ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
ZFCP_DEFINE_ATTR(zfcp_port, port, status, "0x%08x\n",
atomic_read(&port->status));
@@ -73,7 +87,8 @@ static ssize_t zfcp_sysfs_##_feat##_failed_show(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
- struct _feat_def *_feat = dev_get_drvdata(dev); \
+ struct _feat_def *_feat = container_of(dev, struct _feat_def, \
+ sysfs_device); \
\
if (atomic_read(&_feat->status) & ZFCP_STATUS_COMMON_ERP_FAILED) \
return sprintf(buf, "1\n"); \
@@ -84,15 +99,13 @@ static ssize_t zfcp_sysfs_##_feat##_failed_store(struct device *dev, \
struct device_attribute *attr,\
const char *buf, size_t count)\
{ \
- struct _feat_def *_feat = dev_get_drvdata(dev); \
+ struct _feat_def *_feat = container_of(dev, struct _feat_def, \
+ sysfs_device); \
unsigned long val; \
int retval = 0; \
\
- mutex_lock(&zfcp_data.config_mutex); \
- if (atomic_read(&_feat->status) & ZFCP_STATUS_COMMON_REMOVE) { \
- retval = -EBUSY; \
- goto out; \
- } \
+ if (!(_feat && get_device(&_feat->sysfs_device))) \
+ return -EBUSY; \
\
if (strict_strtoul(buf, 0, &val) || val != 0) { \
retval = -EINVAL; \
@@ -105,29 +118,82 @@ static ssize_t zfcp_sysfs_##_feat##_failed_store(struct device *dev, \
_reopen_id, NULL); \
zfcp_erp_wait(_adapter); \
out: \
- mutex_unlock(&zfcp_data.config_mutex); \
+ put_device(&_feat->sysfs_device); \
return retval ? retval : (ssize_t) count; \
} \
static ZFCP_DEV_ATTR(_feat, failed, S_IWUSR | S_IRUGO, \
zfcp_sysfs_##_feat##_failed_show, \
zfcp_sysfs_##_feat##_failed_store);
-ZFCP_SYSFS_FAILED(zfcp_adapter, adapter, adapter, "syafai1", "syafai2");
ZFCP_SYSFS_FAILED(zfcp_port, port, port->adapter, "sypfai1", "sypfai2");
ZFCP_SYSFS_FAILED(zfcp_unit, unit, unit->port->adapter, "syufai1", "syufai2");
+static ssize_t zfcp_sysfs_adapter_failed_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct ccw_device *cdev = to_ccwdev(dev);
+ struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
+ int i;
+
+ if (!adapter)
+ return -ENODEV;
+
+ if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED)
+ i = sprintf(buf, "1\n");
+ else
+ i = sprintf(buf, "0\n");
+
+ zfcp_ccw_adapter_put(adapter);
+ return i;
+}
+
+static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ccw_device *cdev = to_ccwdev(dev);
+ struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
+ unsigned long val;
+ int retval = 0;
+
+ if (!adapter)
+ return -ENODEV;
+
+ if (strict_strtoul(buf, 0, &val) || val != 0) {
+ retval = -EINVAL;
+ goto out;
+ }
+
+ zfcp_erp_modify_adapter_status(adapter, "syafai1", NULL,
+ ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
+ zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
+ "syafai2", NULL);
+ zfcp_erp_wait(adapter);
+out:
+ zfcp_ccw_adapter_put(adapter);
+ return retval ? retval : (ssize_t) count;
+}
+static ZFCP_DEV_ATTR(adapter, failed, S_IWUSR | S_IRUGO,
+ zfcp_sysfs_adapter_failed_show,
+ zfcp_sysfs_adapter_failed_store);
+
static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct zfcp_adapter *adapter = dev_get_drvdata(dev);
- int ret;
+ struct ccw_device *cdev = to_ccwdev(dev);
+ struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
- if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_REMOVE)
- return -EBUSY;
+ if (!adapter)
+ return -ENODEV;
- ret = zfcp_fc_scan_ports(adapter);
- return ret ? ret : (ssize_t) count;
+ /* sync the user-space- with the kernel-invocation of scan_work */
+ queue_work(adapter->work_queue, &adapter->scan_work);
+ flush_work(&adapter->scan_work);
+ zfcp_ccw_adapter_put(adapter);
+
+ return (ssize_t) count;
}
static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL,
zfcp_sysfs_port_rescan_store);
@@ -136,44 +202,34 @@ static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct zfcp_adapter *adapter = dev_get_drvdata(dev);
+ struct ccw_device *cdev = to_ccwdev(dev);
+ struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
struct zfcp_port *port;
u64 wwpn;
- int retval = 0;
- LIST_HEAD(port_remove_lh);
+ int retval = -EINVAL;
- mutex_lock(&zfcp_data.config_mutex);
- if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_REMOVE) {
- retval = -EBUSY;
- goto out;
- }
+ if (!adapter)
+ return -ENODEV;
- if (strict_strtoull(buf, 0, (unsigned long long *) &wwpn)) {
- retval = -EINVAL;
+ if (strict_strtoull(buf, 0, (unsigned long long *) &wwpn))
goto out;
- }
- write_lock_irq(&zfcp_data.config_lock);
port = zfcp_get_port_by_wwpn(adapter, wwpn);
- if (port && (atomic_read(&port->refcount) == 0)) {
- zfcp_port_get(port);
- atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &port->status);
- list_move(&port->list, &port_remove_lh);
- } else
- port = NULL;
- write_unlock_irq(&zfcp_data.config_lock);
-
- if (!port) {
- retval = -ENXIO;
+ if (!port)
goto out;
- }
+ else
+ retval = 0;
+
+ write_lock_irq(&adapter->port_list_lock);
+ list_del(&port->list);
+ write_unlock_irq(&adapter->port_list_lock);
+
+ put_device(&port->sysfs_device);
zfcp_erp_port_shutdown(port, 0, "syprs_1", NULL);
- zfcp_erp_wait(adapter);
- zfcp_port_put(port);
- zfcp_port_dequeue(port);
+ zfcp_device_unregister(&port->sysfs_device, &zfcp_sysfs_port_attrs);
out:
- mutex_unlock(&zfcp_data.config_mutex);
+ zfcp_ccw_adapter_put(adapter);
return retval ? retval : (ssize_t) count;
}
static ZFCP_DEV_ATTR(adapter, port_remove, S_IWUSR, NULL,
@@ -202,16 +258,14 @@ static ssize_t zfcp_sysfs_unit_add_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct zfcp_port *port = dev_get_drvdata(dev);
+ struct zfcp_port *port = container_of(dev, struct zfcp_port,
+ sysfs_device);
struct zfcp_unit *unit;
u64 fcp_lun;
int retval = -EINVAL;
- mutex_lock(&zfcp_data.config_mutex);
- if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_REMOVE) {
- retval = -EBUSY;
- goto out;
- }
+ if (!(port && get_device(&port->sysfs_device)))
+ return -EBUSY;
if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
goto out;
@@ -219,15 +273,14 @@ static ssize_t zfcp_sysfs_unit_add_store(struct device *dev,
unit = zfcp_unit_enqueue(port, fcp_lun);
if (IS_ERR(unit))
goto out;
-
- retval = 0;
+ else
+ retval = 0;
zfcp_erp_unit_reopen(unit, 0, "syuas_1", NULL);
zfcp_erp_wait(unit->port->adapter);
flush_work(&unit->scsi_work);
- zfcp_unit_put(unit);
out:
- mutex_unlock(&zfcp_data.config_mutex);
+ put_device(&port->sysfs_device);
return retval ? retval : (ssize_t) count;
}
static DEVICE_ATTR(unit_add, S_IWUSR, NULL, zfcp_sysfs_unit_add_store);
@@ -236,54 +289,37 @@ static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct zfcp_port *port = dev_get_drvdata(dev);
+ struct zfcp_port *port = container_of(dev, struct zfcp_port,
+ sysfs_device);
struct zfcp_unit *unit;
u64 fcp_lun;
- int retval = 0;
- LIST_HEAD(unit_remove_lh);
+ int retval = -EINVAL;
- mutex_lock(&zfcp_data.config_mutex);
- if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_REMOVE) {
- retval = -EBUSY;
- goto out;
- }
+ if (!(port && get_device(&port->sysfs_device)))
+ return -EBUSY;
- if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun)) {
- retval = -EINVAL;
+ if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
goto out;
- }
- write_lock_irq(&zfcp_data.config_lock);
unit = zfcp_get_unit_by_lun(port, fcp_lun);
- if (unit) {
- write_unlock_irq(&zfcp_data.config_lock);
- /* wait for possible timeout during SCSI probe */
- flush_work(&unit->scsi_work);
- write_lock_irq(&zfcp_data.config_lock);
-
- if (atomic_read(&unit->refcount) == 0) {
- zfcp_unit_get(unit);
- atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE,
- &unit->status);
- list_move(&unit->list, &unit_remove_lh);
- } else {
- unit = NULL;
- }
- }
+ if (!unit)
+ goto out;
+ else
+ retval = 0;
- write_unlock_irq(&zfcp_data.config_lock);
+ /* wait for possible timeout during SCSI probe */
+ flush_work(&unit->scsi_work);
- if (!unit) {
- retval = -ENXIO;
- goto out;
- }
+ write_lock_irq(&port->unit_list_lock);
+ list_del(&unit->list);
+ write_unlock_irq(&port->unit_list_lock);
+
+ put_device(&unit->sysfs_device);
zfcp_erp_unit_shutdown(unit, 0, "syurs_1", NULL);
- zfcp_erp_wait(unit->port->adapter);
- zfcp_unit_put(unit);
- zfcp_unit_dequeue(unit);
+ zfcp_device_unregister(&unit->sysfs_device, &zfcp_sysfs_unit_attrs);
out:
- mutex_unlock(&zfcp_data.config_mutex);
+ put_device(&port->sysfs_device);
return retval ? retval : (ssize_t) count;
}
static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store);
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 36c21b19e5d7..2d16d49fd3cd 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -186,8 +186,12 @@ static ssize_t twa_show_stats(struct device *dev,
} /* End twa_show_stats() */
/* This function will set a devices queue depth */
-static int twa_change_queue_depth(struct scsi_device *sdev, int queue_depth)
+static int twa_change_queue_depth(struct scsi_device *sdev, int queue_depth,
+ int reason)
{
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
if (queue_depth > TW_Q_LENGTH-2)
queue_depth = TW_Q_LENGTH-2;
scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
new file mode 100644
index 000000000000..4d314d740de4
--- /dev/null
+++ b/drivers/scsi/3w-sas.c
@@ -0,0 +1,1924 @@
+/*
+ 3w-sas.c -- LSI 3ware SAS/SATA-RAID Controller device driver for Linux.
+
+ Written By: Adam Radford <linuxraid@lsi.com>
+
+ Copyright (C) 2009 LSI Corporation.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ NO WARRANTY
+ THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ solely responsible for determining the appropriateness of using and
+ distributing the Program and assumes all risks associated with its
+ exercise of rights under this Agreement, including but not limited to
+ the risks and costs of program errors, damage to or loss of data,
+ programs or equipment, and unavailability or interruption of operations.
+
+ DISCLAIMER OF LIABILITY
+ NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ Controllers supported by this driver:
+
+ LSI 3ware 9750 6Gb/s SAS/SATA-RAID
+
+ Bugs/Comments/Suggestions should be mailed to:
+ linuxraid@lsi.com
+
+ For more information, goto:
+ http://www.lsi.com
+
+ History
+ -------
+ 3.26.02.000 - Initial driver release.
+*/
+
+#include <linux/module.h>
+#include <linux/reboot.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/moduleparam.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/time.h>
+#include <linux/mutex.h>
+#include <linux/smp_lock.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_cmnd.h>
+#include "3w-sas.h"
+
+/* Globals */
+#define TW_DRIVER_VERSION "3.26.02.000"
+static TW_Device_Extension *twl_device_extension_list[TW_MAX_SLOT];
+static unsigned int twl_device_extension_count;
+static int twl_major = -1;
+extern struct timezone sys_tz;
+
+/* Module parameters */
+MODULE_AUTHOR ("LSI");
+MODULE_DESCRIPTION ("LSI 3ware SAS/SATA-RAID Linux Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(TW_DRIVER_VERSION);
+
+static int use_msi;
+module_param(use_msi, int, S_IRUGO);
+MODULE_PARM_DESC(use_msi, "Use Message Signaled Interrupts. Default: 0");
+
+/* Function prototypes */
+static int twl_reset_device_extension(TW_Device_Extension *tw_dev, int ioctl_reset);
+
+/* Functions */
+
+/* This function returns AENs through sysfs */
+static ssize_t twl_sysfs_aen_read(struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *outbuf, loff_t offset, size_t count)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct Scsi_Host *shost = class_to_shost(dev);
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)shost->hostdata;
+ unsigned long flags = 0;
+ ssize_t ret;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
+ ret = memory_read_from_buffer(outbuf, count, &offset, tw_dev->event_queue[0], sizeof(TW_Event) * TW_Q_LENGTH);
+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
+
+ return ret;
+} /* End twl_sysfs_aen_read() */
+
+/* aen_read sysfs attribute initializer */
+static struct bin_attribute twl_sysfs_aen_read_attr = {
+ .attr = {
+ .name = "3ware_aen_read",
+ .mode = S_IRUSR,
+ },
+ .size = 0,
+ .read = twl_sysfs_aen_read
+};
+
+/* This function returns driver compatibility info through sysfs */
+static ssize_t twl_sysfs_compat_info(struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *outbuf, loff_t offset, size_t count)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct Scsi_Host *shost = class_to_shost(dev);
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)shost->hostdata;
+ unsigned long flags = 0;
+ ssize_t ret;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
+ ret = memory_read_from_buffer(outbuf, count, &offset, &tw_dev->tw_compat_info, sizeof(TW_Compatibility_Info));
+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
+
+ return ret;
+} /* End twl_sysfs_compat_info() */
+
+/* compat_info sysfs attribute initializer */
+static struct bin_attribute twl_sysfs_compat_info_attr = {
+ .attr = {
+ .name = "3ware_compat_info",
+ .mode = S_IRUSR,
+ },
+ .size = 0,
+ .read = twl_sysfs_compat_info
+};
+
+/* Show some statistics about the card */
+static ssize_t twl_show_stats(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct Scsi_Host *host = class_to_shost(dev);
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
+ unsigned long flags = 0;
+ ssize_t len;
+
+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
+ len = snprintf(buf, PAGE_SIZE, "3w-sas Driver version: %s\n"
+ "Current commands posted: %4d\n"
+ "Max commands posted: %4d\n"
+ "Last sgl length: %4d\n"
+ "Max sgl length: %4d\n"
+ "Last sector count: %4d\n"
+ "Max sector count: %4d\n"
+ "SCSI Host Resets: %4d\n"
+ "AEN's: %4d\n",
+ TW_DRIVER_VERSION,
+ tw_dev->posted_request_count,
+ tw_dev->max_posted_request_count,
+ tw_dev->sgl_entries,
+ tw_dev->max_sgl_entries,
+ tw_dev->sector_count,
+ tw_dev->max_sector_count,
+ tw_dev->num_resets,
+ tw_dev->aen_count);
+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
+ return len;
+} /* End twl_show_stats() */
+
+/* This function will set a devices queue depth */
+static int twl_change_queue_depth(struct scsi_device *sdev, int queue_depth,
+ int reason)
+{
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
+ if (queue_depth > TW_Q_LENGTH-2)
+ queue_depth = TW_Q_LENGTH-2;
+ scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
+ return queue_depth;
+} /* End twl_change_queue_depth() */
+
+/* stats sysfs attribute initializer */
+static struct device_attribute twl_host_stats_attr = {
+ .attr = {
+ .name = "3ware_stats",
+ .mode = S_IRUGO,
+ },
+ .show = twl_show_stats
+};
+
+/* Host attributes initializer */
+static struct device_attribute *twl_host_attrs[] = {
+ &twl_host_stats_attr,
+ NULL,
+};
+
+/* This function will look up an AEN severity string */
+static char *twl_aen_severity_lookup(unsigned char severity_code)
+{
+ char *retval = NULL;
+
+ if ((severity_code < (unsigned char) TW_AEN_SEVERITY_ERROR) ||
+ (severity_code > (unsigned char) TW_AEN_SEVERITY_DEBUG))
+ goto out;
+
+ retval = twl_aen_severity_table[severity_code];
+out:
+ return retval;
+} /* End twl_aen_severity_lookup() */
+
+/* This function will queue an event */
+static void twl_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header)
+{
+ u32 local_time;
+ struct timeval time;
+ TW_Event *event;
+ unsigned short aen;
+ char host[16];
+ char *error_str;
+
+ tw_dev->aen_count++;
+
+ /* Fill out event info */
+ event = tw_dev->event_queue[tw_dev->error_index];
+
+ host[0] = '\0';
+ if (tw_dev->host)
+ sprintf(host, " scsi%d:", tw_dev->host->host_no);
+
+ aen = le16_to_cpu(header->status_block.error);
+ memset(event, 0, sizeof(TW_Event));
+
+ event->severity = TW_SEV_OUT(header->status_block.severity__reserved);
+ do_gettimeofday(&time);
+ local_time = (u32)(time.tv_sec - (sys_tz.tz_minuteswest * 60));
+ event->time_stamp_sec = local_time;
+ event->aen_code = aen;
+ event->retrieved = TW_AEN_NOT_RETRIEVED;
+ event->sequence_id = tw_dev->error_sequence_id;
+ tw_dev->error_sequence_id++;
+
+ /* Check for embedded error string */
+ error_str = &(header->err_specific_desc[strlen(header->err_specific_desc)+1]);
+
+ header->err_specific_desc[sizeof(header->err_specific_desc) - 1] = '\0';
+ event->parameter_len = strlen(header->err_specific_desc);
+ memcpy(event->parameter_data, header->err_specific_desc, event->parameter_len + 1 + strlen(error_str));
+ if (event->severity != TW_AEN_SEVERITY_DEBUG)
+ printk(KERN_WARNING "3w-sas:%s AEN: %s (0x%02X:0x%04X): %s:%s.\n",
+ host,
+ twl_aen_severity_lookup(TW_SEV_OUT(header->status_block.severity__reserved)),
+ TW_MESSAGE_SOURCE_CONTROLLER_EVENT, aen, error_str,
+ header->err_specific_desc);
+ else
+ tw_dev->aen_count--;
+
+ tw_dev->error_index = (tw_dev->error_index + 1 ) % TW_Q_LENGTH;
+} /* End twl_aen_queue_event() */
+
+/* This function will attempt to post a command packet to the board */
+static int twl_post_command_packet(TW_Device_Extension *tw_dev, int request_id)
+{
+ dma_addr_t command_que_value;
+
+ command_que_value = tw_dev->command_packet_phys[request_id];
+ command_que_value += TW_COMMAND_OFFSET;
+
+ /* First write upper 4 bytes */
+ writel((u32)((u64)command_que_value >> 32), TWL_HIBQPH_REG_ADDR(tw_dev));
+ /* Then the lower 4 bytes */
+ writel((u32)(command_que_value | TWL_PULL_MODE), TWL_HIBQPL_REG_ADDR(tw_dev));
+
+ tw_dev->state[request_id] = TW_S_POSTED;
+ tw_dev->posted_request_count++;
+ if (tw_dev->posted_request_count > tw_dev->max_posted_request_count)
+ tw_dev->max_posted_request_count = tw_dev->posted_request_count;
+
+ return 0;
+} /* End twl_post_command_packet() */
+
+/* This function will perform a pci-dma mapping for a scatter gather list */
+static int twl_map_scsi_sg_data(TW_Device_Extension *tw_dev, int request_id)
+{
+ int use_sg;
+ struct scsi_cmnd *cmd = tw_dev->srb[request_id];
+
+ use_sg = scsi_dma_map(cmd);
+ if (!use_sg)
+ return 0;
+ else if (use_sg < 0) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1, "Failed to map scatter gather list");
+ return 0;
+ }
+
+ cmd->SCp.phase = TW_PHASE_SGLIST;
+ cmd->SCp.have_data_in = use_sg;
+
+ return use_sg;
+} /* End twl_map_scsi_sg_data() */
+
+/* This function hands scsi cdb's to the firmware */
+static int twl_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, char *cdb, int use_sg, TW_SG_Entry_ISO *sglistarg)
+{
+ TW_Command_Full *full_command_packet;
+ TW_Command_Apache *command_packet;
+ int i, sg_count;
+ struct scsi_cmnd *srb = NULL;
+ struct scatterlist *sglist = NULL, *sg;
+ int retval = 1;
+
+ if (tw_dev->srb[request_id]) {
+ srb = tw_dev->srb[request_id];
+ if (scsi_sglist(srb))
+ sglist = scsi_sglist(srb);
+ }
+
+ /* Initialize command packet */
+ full_command_packet = tw_dev->command_packet_virt[request_id];
+ full_command_packet->header.header_desc.size_header = 128;
+ full_command_packet->header.status_block.error = 0;
+ full_command_packet->header.status_block.severity__reserved = 0;
+
+ command_packet = &full_command_packet->command.newcommand;
+ command_packet->status = 0;
+ command_packet->opcode__reserved = TW_OPRES_IN(0, TW_OP_EXECUTE_SCSI);
+
+ /* We forced 16 byte cdb use earlier */
+ if (!cdb)
+ memcpy(command_packet->cdb, srb->cmnd, TW_MAX_CDB_LEN);
+ else
+ memcpy(command_packet->cdb, cdb, TW_MAX_CDB_LEN);
+
+ if (srb) {
+ command_packet->unit = srb->device->id;
+ command_packet->request_id__lunl =
+ cpu_to_le16(TW_REQ_LUN_IN(srb->device->lun, request_id));
+ } else {
+ command_packet->request_id__lunl =
+ cpu_to_le16(TW_REQ_LUN_IN(0, request_id));
+ command_packet->unit = 0;
+ }
+
+ command_packet->sgl_offset = 16;
+
+ if (!sglistarg) {
+ /* Map sglist from scsi layer to cmd packet */
+ if (scsi_sg_count(srb)) {
+ sg_count = twl_map_scsi_sg_data(tw_dev, request_id);
+ if (sg_count == 0)
+ goto out;
+
+ scsi_for_each_sg(srb, sg, sg_count, i) {
+ command_packet->sg_list[i].address = TW_CPU_TO_SGL(sg_dma_address(sg));
+ command_packet->sg_list[i].length = TW_CPU_TO_SGL(sg_dma_len(sg));
+ }
+ command_packet->sgl_entries__lunh = cpu_to_le16(TW_REQ_LUN_IN((srb->device->lun >> 4), scsi_sg_count(tw_dev->srb[request_id])));
+ }
+ } else {
+ /* Internal cdb post */
+ for (i = 0; i < use_sg; i++) {
+ command_packet->sg_list[i].address = TW_CPU_TO_SGL(sglistarg[i].address);
+ command_packet->sg_list[i].length = TW_CPU_TO_SGL(sglistarg[i].length);
+ }
+ command_packet->sgl_entries__lunh = cpu_to_le16(TW_REQ_LUN_IN(0, use_sg));
+ }
+
+ /* Update some stats */
+ if (srb) {
+ tw_dev->sector_count = scsi_bufflen(srb) / 512;
+ if (tw_dev->sector_count > tw_dev->max_sector_count)
+ tw_dev->max_sector_count = tw_dev->sector_count;
+ tw_dev->sgl_entries = scsi_sg_count(srb);
+ if (tw_dev->sgl_entries > tw_dev->max_sgl_entries)
+ tw_dev->max_sgl_entries = tw_dev->sgl_entries;
+ }
+
+ /* Now post the command to the board */
+ retval = twl_post_command_packet(tw_dev, request_id);
+
+out:
+ return retval;
+} /* End twl_scsiop_execute_scsi() */
+
+/* This function will read the aen queue from the isr */
+static int twl_aen_read_queue(TW_Device_Extension *tw_dev, int request_id)
+{
+ char cdb[TW_MAX_CDB_LEN];
+ TW_SG_Entry_ISO sglist[1];
+ TW_Command_Full *full_command_packet;
+ int retval = 1;
+
+ full_command_packet = tw_dev->command_packet_virt[request_id];
+ memset(full_command_packet, 0, sizeof(TW_Command_Full));
+
+ /* Initialize cdb */
+ memset(&cdb, 0, TW_MAX_CDB_LEN);
+ cdb[0] = REQUEST_SENSE; /* opcode */
+ cdb[4] = TW_ALLOCATION_LENGTH; /* allocation length */
+
+ /* Initialize sglist */
+ memset(&sglist, 0, sizeof(TW_SG_Entry_ISO));
+ sglist[0].length = TW_SECTOR_SIZE;
+ sglist[0].address = tw_dev->generic_buffer_phys[request_id];
+
+ /* Mark internal command */
+ tw_dev->srb[request_id] = NULL;
+
+ /* Now post the command packet */
+ if (twl_scsiop_execute_scsi(tw_dev, request_id, cdb, 1, sglist)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x2, "Post failed while reading AEN queue");
+ goto out;
+ }
+ retval = 0;
+out:
+ return retval;
+} /* End twl_aen_read_queue() */
+
+/* This function will sync firmware time with the host time */
+static void twl_aen_sync_time(TW_Device_Extension *tw_dev, int request_id)
+{
+ u32 schedulertime;
+ struct timeval utc;
+ TW_Command_Full *full_command_packet;
+ TW_Command *command_packet;
+ TW_Param_Apache *param;
+ u32 local_time;
+
+ /* Fill out the command packet */
+ full_command_packet = tw_dev->command_packet_virt[request_id];
+ memset(full_command_packet, 0, sizeof(TW_Command_Full));
+ command_packet = &full_command_packet->command.oldcommand;
+ command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_SET_PARAM);
+ command_packet->request_id = request_id;
+ command_packet->byte8_offset.param.sgl[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]);
+ command_packet->byte8_offset.param.sgl[0].length = TW_CPU_TO_SGL(TW_SECTOR_SIZE);
+ command_packet->size = TW_COMMAND_SIZE;
+ command_packet->byte6_offset.parameter_count = cpu_to_le16(1);
+
+ /* Setup the param */
+ param = (TW_Param_Apache *)tw_dev->generic_buffer_virt[request_id];
+ memset(param, 0, TW_SECTOR_SIZE);
+ param->table_id = cpu_to_le16(TW_TIMEKEEP_TABLE | 0x8000); /* Controller time keep table */
+ param->parameter_id = cpu_to_le16(0x3); /* SchedulerTime */
+ param->parameter_size_bytes = cpu_to_le16(4);
+
+ /* Convert system time in UTC to local time seconds since last
+ Sunday 12:00AM */
+ do_gettimeofday(&utc);
+ local_time = (u32)(utc.tv_sec - (sys_tz.tz_minuteswest * 60));
+ schedulertime = local_time - (3 * 86400);
+ schedulertime = cpu_to_le32(schedulertime % 604800);
+
+ memcpy(param->data, &schedulertime, sizeof(u32));
+
+ /* Mark internal command */
+ tw_dev->srb[request_id] = NULL;
+
+ /* Now post the command */
+ twl_post_command_packet(tw_dev, request_id);
+} /* End twl_aen_sync_time() */
+
+/* This function will assign an available request id */
+static void twl_get_request_id(TW_Device_Extension *tw_dev, int *request_id)
+{
+ *request_id = tw_dev->free_queue[tw_dev->free_head];
+ tw_dev->free_head = (tw_dev->free_head + 1) % TW_Q_LENGTH;
+ tw_dev->state[*request_id] = TW_S_STARTED;
+} /* End twl_get_request_id() */
+
+/* This function will free a request id */
+static void twl_free_request_id(TW_Device_Extension *tw_dev, int request_id)
+{
+ tw_dev->free_queue[tw_dev->free_tail] = request_id;
+ tw_dev->state[request_id] = TW_S_FINISHED;
+ tw_dev->free_tail = (tw_dev->free_tail + 1) % TW_Q_LENGTH;
+} /* End twl_free_request_id() */
+
+/* This function will complete an aen request from the isr */
+static int twl_aen_complete(TW_Device_Extension *tw_dev, int request_id)
+{
+ TW_Command_Full *full_command_packet;
+ TW_Command *command_packet;
+ TW_Command_Apache_Header *header;
+ unsigned short aen;
+ int retval = 1;
+
+ header = (TW_Command_Apache_Header *)tw_dev->generic_buffer_virt[request_id];
+ tw_dev->posted_request_count--;
+ aen = le16_to_cpu(header->status_block.error);
+ full_command_packet = tw_dev->command_packet_virt[request_id];
+ command_packet = &full_command_packet->command.oldcommand;
+
+ /* First check for internal completion of set param for time sync */
+ if (TW_OP_OUT(command_packet->opcode__sgloffset) == TW_OP_SET_PARAM) {
+ /* Keep reading the queue in case there are more aen's */
+ if (twl_aen_read_queue(tw_dev, request_id))
+ goto out2;
+ else {
+ retval = 0;
+ goto out;
+ }
+ }
+
+ switch (aen) {
+ case TW_AEN_QUEUE_EMPTY:
+ /* Quit reading the queue if this is the last one */
+ break;
+ case TW_AEN_SYNC_TIME_WITH_HOST:
+ twl_aen_sync_time(tw_dev, request_id);
+ retval = 0;
+ goto out;
+ default:
+ twl_aen_queue_event(tw_dev, header);
+
+ /* If there are more aen's, keep reading the queue */
+ if (twl_aen_read_queue(tw_dev, request_id))
+ goto out2;
+ else {
+ retval = 0;
+ goto out;
+ }
+ }
+ retval = 0;
+out2:
+ tw_dev->state[request_id] = TW_S_COMPLETED;
+ twl_free_request_id(tw_dev, request_id);
+ clear_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags);
+out:
+ return retval;
+} /* End twl_aen_complete() */
+
+/* This function will poll for a response */
+static int twl_poll_response(TW_Device_Extension *tw_dev, int request_id, int seconds)
+{
+ unsigned long before;
+ dma_addr_t mfa;
+ u32 regh, regl;
+ u32 response;
+ int retval = 1;
+ int found = 0;
+
+ before = jiffies;
+
+ while (!found) {
+ if (sizeof(dma_addr_t) > 4) {
+ regh = readl(TWL_HOBQPH_REG_ADDR(tw_dev));
+ regl = readl(TWL_HOBQPL_REG_ADDR(tw_dev));
+ mfa = ((u64)regh << 32) | regl;
+ } else
+ mfa = readl(TWL_HOBQPL_REG_ADDR(tw_dev));
+
+ response = (u32)mfa;
+
+ if (TW_RESID_OUT(response) == request_id)
+ found = 1;
+
+ if (time_after(jiffies, before + HZ * seconds))
+ goto out;
+
+ msleep(50);
+ }
+ retval = 0;
+out:
+ return retval;
+} /* End twl_poll_response() */
+
+/* This function will drain the aen queue */
+static int twl_aen_drain_queue(TW_Device_Extension *tw_dev, int no_check_reset)
+{
+ int request_id = 0;
+ char cdb[TW_MAX_CDB_LEN];
+ TW_SG_Entry_ISO sglist[1];
+ int finished = 0, count = 0;
+ TW_Command_Full *full_command_packet;
+ TW_Command_Apache_Header *header;
+ unsigned short aen;
+ int first_reset = 0, queue = 0, retval = 1;
+
+ if (no_check_reset)
+ first_reset = 0;
+ else
+ first_reset = 1;
+
+ full_command_packet = tw_dev->command_packet_virt[request_id];
+ memset(full_command_packet, 0, sizeof(TW_Command_Full));
+
+ /* Initialize cdb */
+ memset(&cdb, 0, TW_MAX_CDB_LEN);
+ cdb[0] = REQUEST_SENSE; /* opcode */
+ cdb[4] = TW_ALLOCATION_LENGTH; /* allocation length */
+
+ /* Initialize sglist */
+ memset(&sglist, 0, sizeof(TW_SG_Entry_ISO));
+ sglist[0].length = TW_SECTOR_SIZE;
+ sglist[0].address = tw_dev->generic_buffer_phys[request_id];
+
+ /* Mark internal command */
+ tw_dev->srb[request_id] = NULL;
+
+ do {
+ /* Send command to the board */
+ if (twl_scsiop_execute_scsi(tw_dev, request_id, cdb, 1, sglist)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x3, "Error posting request sense");
+ goto out;
+ }
+
+ /* Now poll for completion */
+ if (twl_poll_response(tw_dev, request_id, 30)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x4, "No valid response while draining AEN queue");
+ tw_dev->posted_request_count--;
+ goto out;
+ }
+
+ tw_dev->posted_request_count--;
+ header = (TW_Command_Apache_Header *)tw_dev->generic_buffer_virt[request_id];
+ aen = le16_to_cpu(header->status_block.error);
+ queue = 0;
+ count++;
+
+ switch (aen) {
+ case TW_AEN_QUEUE_EMPTY:
+ if (first_reset != 1)
+ goto out;
+ else
+ finished = 1;
+ break;
+ case TW_AEN_SOFT_RESET:
+ if (first_reset == 0)
+ first_reset = 1;
+ else
+ queue = 1;
+ break;
+ case TW_AEN_SYNC_TIME_WITH_HOST:
+ break;
+ default:
+ queue = 1;
+ }
+
+ /* Now queue an event info */
+ if (queue)
+ twl_aen_queue_event(tw_dev, header);
+ } while ((finished == 0) && (count < TW_MAX_AEN_DRAIN));
+
+ if (count == TW_MAX_AEN_DRAIN)
+ goto out;
+
+ retval = 0;
+out:
+ tw_dev->state[request_id] = TW_S_INITIAL;
+ return retval;
+} /* End twl_aen_drain_queue() */
+
+/* This function will allocate memory and check if it is correctly aligned */
+static int twl_allocate_memory(TW_Device_Extension *tw_dev, int size, int which)
+{
+ int i;
+ dma_addr_t dma_handle;
+ unsigned long *cpu_addr;
+ int retval = 1;
+
+ cpu_addr = pci_alloc_consistent(tw_dev->tw_pci_dev, size*TW_Q_LENGTH, &dma_handle);
+ if (!cpu_addr) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x5, "Memory allocation failed");
+ goto out;
+ }
+
+ memset(cpu_addr, 0, size*TW_Q_LENGTH);
+
+ for (i = 0; i < TW_Q_LENGTH; i++) {
+ switch(which) {
+ case 0:
+ tw_dev->command_packet_phys[i] = dma_handle+(i*size);
+ tw_dev->command_packet_virt[i] = (TW_Command_Full *)((unsigned char *)cpu_addr + (i*size));
+ break;
+ case 1:
+ tw_dev->generic_buffer_phys[i] = dma_handle+(i*size);
+ tw_dev->generic_buffer_virt[i] = (unsigned long *)((unsigned char *)cpu_addr + (i*size));
+ break;
+ case 2:
+ tw_dev->sense_buffer_phys[i] = dma_handle+(i*size);
+ tw_dev->sense_buffer_virt[i] = (TW_Command_Apache_Header *)((unsigned char *)cpu_addr + (i*size));
+ break;
+ }
+ }
+ retval = 0;
+out:
+ return retval;
+} /* End twl_allocate_memory() */
+
+/* This function will load the request id and various sgls for ioctls */
+static void twl_load_sgl(TW_Device_Extension *tw_dev, TW_Command_Full *full_command_packet, int request_id, dma_addr_t dma_handle, int length)
+{
+ TW_Command *oldcommand;
+ TW_Command_Apache *newcommand;
+ TW_SG_Entry_ISO *sgl;
+ unsigned int pae = 0;
+
+ if ((sizeof(long) < 8) && (sizeof(dma_addr_t) > 4))
+ pae = 1;
+
+ if (TW_OP_OUT(full_command_packet->command.newcommand.opcode__reserved) == TW_OP_EXECUTE_SCSI) {
+ newcommand = &full_command_packet->command.newcommand;
+ newcommand->request_id__lunl =
+ cpu_to_le16(TW_REQ_LUN_IN(TW_LUN_OUT(newcommand->request_id__lunl), request_id));
+ if (length) {
+ newcommand->sg_list[0].address = TW_CPU_TO_SGL(dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1);
+ newcommand->sg_list[0].length = TW_CPU_TO_SGL(length);
+ }
+ newcommand->sgl_entries__lunh =
+ cpu_to_le16(TW_REQ_LUN_IN(TW_LUN_OUT(newcommand->sgl_entries__lunh), length ? 1 : 0));
+ } else {
+ oldcommand = &full_command_packet->command.oldcommand;
+ oldcommand->request_id = request_id;
+
+ if (TW_SGL_OUT(oldcommand->opcode__sgloffset)) {
+ /* Load the sg list */
+ sgl = (TW_SG_Entry_ISO *)((u32 *)oldcommand+oldcommand->size - (sizeof(TW_SG_Entry_ISO)/4) + pae + (sizeof(dma_addr_t) > 4 ? 1 : 0));
+ sgl->address = TW_CPU_TO_SGL(dma_handle + sizeof(TW_Ioctl_Buf_Apache) - 1);
+ sgl->length = TW_CPU_TO_SGL(length);
+ oldcommand->size += pae;
+ oldcommand->size += sizeof(dma_addr_t) > 4 ? 1 : 0;
+ }
+ }
+} /* End twl_load_sgl() */
+
+/* This function handles ioctl for the character device
+ This interface is used by smartmontools open source software */
+static int twl_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ long timeout;
+ unsigned long *cpu_addr, data_buffer_length_adjusted = 0, flags = 0;
+ dma_addr_t dma_handle;
+ int request_id = 0;
+ TW_Ioctl_Driver_Command driver_command;
+ TW_Ioctl_Buf_Apache *tw_ioctl;
+ TW_Command_Full *full_command_packet;
+ TW_Device_Extension *tw_dev = twl_device_extension_list[iminor(inode)];
+ int retval = -EFAULT;
+ void __user *argp = (void __user *)arg;
+
+ /* Only let one of these through at a time */
+ if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) {
+ retval = -EINTR;
+ goto out;
+ }
+
+ /* First copy down the driver command */
+ if (copy_from_user(&driver_command, argp, sizeof(TW_Ioctl_Driver_Command)))
+ goto out2;
+
+ /* Check data buffer size */
+ if (driver_command.buffer_length > TW_MAX_SECTORS * 2048) {
+ retval = -EINVAL;
+ goto out2;
+ }
+
+ /* Hardware can only do multiple of 512 byte transfers */
+ data_buffer_length_adjusted = (driver_command.buffer_length + 511) & ~511;
+
+ /* Now allocate ioctl buf memory */
+ cpu_addr = dma_alloc_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_Ioctl_Buf_Apache) - 1, &dma_handle, GFP_KERNEL);
+ if (!cpu_addr) {
+ retval = -ENOMEM;
+ goto out2;
+ }
+
+ tw_ioctl = (TW_Ioctl_Buf_Apache *)cpu_addr;
+
+ /* Now copy down the entire ioctl */
+ if (copy_from_user(tw_ioctl, argp, driver_command.buffer_length + sizeof(TW_Ioctl_Buf_Apache) - 1))
+ goto out3;
+
+ /* See which ioctl we are doing */
+ switch (cmd) {
+ case TW_IOCTL_FIRMWARE_PASS_THROUGH:
+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
+ twl_get_request_id(tw_dev, &request_id);
+
+ /* Flag internal command */
+ tw_dev->srb[request_id] = NULL;
+
+ /* Flag chrdev ioctl */
+ tw_dev->chrdev_request_id = request_id;
+
+ full_command_packet = (TW_Command_Full *)&tw_ioctl->firmware_command;
+
+ /* Load request id and sglist for both command types */
+ twl_load_sgl(tw_dev, full_command_packet, request_id, dma_handle, data_buffer_length_adjusted);
+
+ memcpy(tw_dev->command_packet_virt[request_id], &(tw_ioctl->firmware_command), sizeof(TW_Command_Full));
+
+ /* Now post the command packet to the controller */
+ twl_post_command_packet(tw_dev, request_id);
+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
+
+ timeout = TW_IOCTL_CHRDEV_TIMEOUT*HZ;
+
+ /* Now wait for command to complete */
+ timeout = wait_event_timeout(tw_dev->ioctl_wqueue, tw_dev->chrdev_request_id == TW_IOCTL_CHRDEV_FREE, timeout);
+
+ /* We timed out, and didn't get an interrupt */
+ if (tw_dev->chrdev_request_id != TW_IOCTL_CHRDEV_FREE) {
+ /* Now we need to reset the board */
+ printk(KERN_WARNING "3w-sas: scsi%d: WARNING: (0x%02X:0x%04X): Character ioctl (0x%x) timed out, resetting card.\n",
+ tw_dev->host->host_no, TW_DRIVER, 0x6,
+ cmd);
+ retval = -EIO;
+ twl_reset_device_extension(tw_dev, 1);
+ goto out3;
+ }
+
+ /* Now copy in the command packet response */
+ memcpy(&(tw_ioctl->firmware_command), tw_dev->command_packet_virt[request_id], sizeof(TW_Command_Full));
+
+ /* Now complete the io */
+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
+ tw_dev->posted_request_count--;
+ tw_dev->state[request_id] = TW_S_COMPLETED;
+ twl_free_request_id(tw_dev, request_id);
+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
+ break;
+ default:
+ retval = -ENOTTY;
+ goto out3;
+ }
+
+ /* Now copy the entire response to userspace */
+ if (copy_to_user(argp, tw_ioctl, sizeof(TW_Ioctl_Buf_Apache) + driver_command.buffer_length - 1) == 0)
+ retval = 0;
+out3:
+ /* Now free ioctl buf memory */
+ dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_Ioctl_Buf_Apache) - 1, cpu_addr, dma_handle);
+out2:
+ mutex_unlock(&tw_dev->ioctl_lock);
+out:
+ return retval;
+} /* End twl_chrdev_ioctl() */
+
+/* This function handles open for the character device */
+static int twl_chrdev_open(struct inode *inode, struct file *file)
+{
+ unsigned int minor_number;
+ int retval = -ENODEV;
+
+ if (!capable(CAP_SYS_ADMIN)) {
+ retval = -EACCES;
+ goto out;
+ }
+
+ cycle_kernel_lock();
+ minor_number = iminor(inode);
+ if (minor_number >= twl_device_extension_count)
+ goto out;
+ retval = 0;
+out:
+ return retval;
+} /* End twl_chrdev_open() */
+
+/* File operations struct for character device */
+static const struct file_operations twl_fops = {
+ .owner = THIS_MODULE,
+ .ioctl = twl_chrdev_ioctl,
+ .open = twl_chrdev_open,
+ .release = NULL
+};
+
+/* This function passes sense data from firmware to scsi layer */
+static int twl_fill_sense(TW_Device_Extension *tw_dev, int i, int request_id, int copy_sense, int print_host)
+{
+ TW_Command_Apache_Header *header;
+ TW_Command_Full *full_command_packet;
+ unsigned short error;
+ char *error_str;
+ int retval = 1;
+
+ header = tw_dev->sense_buffer_virt[i];
+ full_command_packet = tw_dev->command_packet_virt[request_id];
+
+ /* Get embedded firmware error string */
+ error_str = &(header->err_specific_desc[strlen(header->err_specific_desc) + 1]);
+
+ /* Don't print error for Logical unit not supported during rollcall */
+ error = le16_to_cpu(header->status_block.error);
+ if ((error != TW_ERROR_LOGICAL_UNIT_NOT_SUPPORTED) && (error != TW_ERROR_UNIT_OFFLINE) && (error != TW_ERROR_INVALID_FIELD_IN_CDB)) {
+ if (print_host)
+ printk(KERN_WARNING "3w-sas: scsi%d: ERROR: (0x%02X:0x%04X): %s:%s.\n",
+ tw_dev->host->host_no,
+ TW_MESSAGE_SOURCE_CONTROLLER_ERROR,
+ header->status_block.error,
+ error_str,
+ header->err_specific_desc);
+ else
+ printk(KERN_WARNING "3w-sas: ERROR: (0x%02X:0x%04X): %s:%s.\n",
+ TW_MESSAGE_SOURCE_CONTROLLER_ERROR,
+ header->status_block.error,
+ error_str,
+ header->err_specific_desc);
+ }
+
+ if (copy_sense) {
+ memcpy(tw_dev->srb[request_id]->sense_buffer, header->sense_data, TW_SENSE_DATA_LENGTH);
+ tw_dev->srb[request_id]->result = (full_command_packet->command.newcommand.status << 1);
+ goto out;
+ }
+out:
+ return retval;
+} /* End twl_fill_sense() */
+
+/* This function will free up device extension resources */
+static void twl_free_device_extension(TW_Device_Extension *tw_dev)
+{
+ if (tw_dev->command_packet_virt[0])
+ pci_free_consistent(tw_dev->tw_pci_dev,
+ sizeof(TW_Command_Full)*TW_Q_LENGTH,
+ tw_dev->command_packet_virt[0],
+ tw_dev->command_packet_phys[0]);
+
+ if (tw_dev->generic_buffer_virt[0])
+ pci_free_consistent(tw_dev->tw_pci_dev,
+ TW_SECTOR_SIZE*TW_Q_LENGTH,
+ tw_dev->generic_buffer_virt[0],
+ tw_dev->generic_buffer_phys[0]);
+
+ if (tw_dev->sense_buffer_virt[0])
+ pci_free_consistent(tw_dev->tw_pci_dev,
+ sizeof(TW_Command_Apache_Header)*
+ TW_Q_LENGTH,
+ tw_dev->sense_buffer_virt[0],
+ tw_dev->sense_buffer_phys[0]);
+
+ kfree(tw_dev->event_queue[0]);
+} /* End twl_free_device_extension() */
+
+/* This function will get parameter table entries from the firmware */
+static void *twl_get_param(TW_Device_Extension *tw_dev, int request_id, int table_id, int parameter_id, int parameter_size_bytes)
+{
+ TW_Command_Full *full_command_packet;
+ TW_Command *command_packet;
+ TW_Param_Apache *param;
+ void *retval = NULL;
+
+ /* Setup the command packet */
+ full_command_packet = tw_dev->command_packet_virt[request_id];
+ memset(full_command_packet, 0, sizeof(TW_Command_Full));
+ command_packet = &full_command_packet->command.oldcommand;
+
+ command_packet->opcode__sgloffset = TW_OPSGL_IN(2, TW_OP_GET_PARAM);
+ command_packet->size = TW_COMMAND_SIZE;
+ command_packet->request_id = request_id;
+ command_packet->byte6_offset.block_count = cpu_to_le16(1);
+
+ /* Now setup the param */
+ param = (TW_Param_Apache *)tw_dev->generic_buffer_virt[request_id];
+ memset(param, 0, TW_SECTOR_SIZE);
+ param->table_id = cpu_to_le16(table_id | 0x8000);
+ param->parameter_id = cpu_to_le16(parameter_id);
+ param->parameter_size_bytes = cpu_to_le16(parameter_size_bytes);
+
+ command_packet->byte8_offset.param.sgl[0].address = TW_CPU_TO_SGL(tw_dev->generic_buffer_phys[request_id]);
+ command_packet->byte8_offset.param.sgl[0].length = TW_CPU_TO_SGL(TW_SECTOR_SIZE);
+
+ /* Post the command packet to the board */
+ twl_post_command_packet(tw_dev, request_id);
+
+ /* Poll for completion */
+ if (twl_poll_response(tw_dev, request_id, 30))
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x7, "No valid response during get param")
+ else
+ retval = (void *)&(param->data[0]);
+
+ tw_dev->posted_request_count--;
+ tw_dev->state[request_id] = TW_S_INITIAL;
+
+ return retval;
+} /* End twl_get_param() */
+
+/* This function will send an initconnection command to controller */
+static int twl_initconnection(TW_Device_Extension *tw_dev, int message_credits,
+ u32 set_features, unsigned short current_fw_srl,
+ unsigned short current_fw_arch_id,
+ unsigned short current_fw_branch,
+ unsigned short current_fw_build,
+ unsigned short *fw_on_ctlr_srl,
+ unsigned short *fw_on_ctlr_arch_id,
+ unsigned short *fw_on_ctlr_branch,
+ unsigned short *fw_on_ctlr_build,
+ u32 *init_connect_result)
+{
+ TW_Command_Full *full_command_packet;
+ TW_Initconnect *tw_initconnect;
+ int request_id = 0, retval = 1;
+
+ /* Initialize InitConnection command packet */
+ full_command_packet = tw_dev->command_packet_virt[request_id];
+ memset(full_command_packet, 0, sizeof(TW_Command_Full));
+ full_command_packet->header.header_desc.size_header = 128;
+
+ tw_initconnect = (TW_Initconnect *)&full_command_packet->command.oldcommand;
+ tw_initconnect->opcode__reserved = TW_OPRES_IN(0, TW_OP_INIT_CONNECTION);
+ tw_initconnect->request_id = request_id;
+ tw_initconnect->message_credits = cpu_to_le16(message_credits);
+ tw_initconnect->features = set_features;
+
+ /* Turn on 64-bit sgl support if we need to */
+ tw_initconnect->features |= sizeof(dma_addr_t) > 4 ? 1 : 0;
+
+ tw_initconnect->features = cpu_to_le32(tw_initconnect->features);
+
+ if (set_features & TW_EXTENDED_INIT_CONNECT) {
+ tw_initconnect->size = TW_INIT_COMMAND_PACKET_SIZE_EXTENDED;
+ tw_initconnect->fw_srl = cpu_to_le16(current_fw_srl);
+ tw_initconnect->fw_arch_id = cpu_to_le16(current_fw_arch_id);
+ tw_initconnect->fw_branch = cpu_to_le16(current_fw_branch);
+ tw_initconnect->fw_build = cpu_to_le16(current_fw_build);
+ } else
+ tw_initconnect->size = TW_INIT_COMMAND_PACKET_SIZE;
+
+ /* Send command packet to the board */
+ twl_post_command_packet(tw_dev, request_id);
+
+ /* Poll for completion */
+ if (twl_poll_response(tw_dev, request_id, 30)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x8, "No valid response during init connection");
+ } else {
+ if (set_features & TW_EXTENDED_INIT_CONNECT) {
+ *fw_on_ctlr_srl = le16_to_cpu(tw_initconnect->fw_srl);
+ *fw_on_ctlr_arch_id = le16_to_cpu(tw_initconnect->fw_arch_id);
+ *fw_on_ctlr_branch = le16_to_cpu(tw_initconnect->fw_branch);
+ *fw_on_ctlr_build = le16_to_cpu(tw_initconnect->fw_build);
+ *init_connect_result = le32_to_cpu(tw_initconnect->result);
+ }
+ retval = 0;
+ }
+
+ tw_dev->posted_request_count--;
+ tw_dev->state[request_id] = TW_S_INITIAL;
+
+ return retval;
+} /* End twl_initconnection() */
+
+/* This function will initialize the fields of a device extension */
+static int twl_initialize_device_extension(TW_Device_Extension *tw_dev)
+{
+ int i, retval = 1;
+
+ /* Initialize command packet buffers */
+ if (twl_allocate_memory(tw_dev, sizeof(TW_Command_Full), 0)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x9, "Command packet memory allocation failed");
+ goto out;
+ }
+
+ /* Initialize generic buffer */
+ if (twl_allocate_memory(tw_dev, TW_SECTOR_SIZE, 1)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xa, "Generic memory allocation failed");
+ goto out;
+ }
+
+ /* Allocate sense buffers */
+ if (twl_allocate_memory(tw_dev, sizeof(TW_Command_Apache_Header), 2)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xb, "Sense buffer allocation failed");
+ goto out;
+ }
+
+ /* Allocate event info space */
+ tw_dev->event_queue[0] = kcalloc(TW_Q_LENGTH, sizeof(TW_Event), GFP_KERNEL);
+ if (!tw_dev->event_queue[0]) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xc, "Event info memory allocation failed");
+ goto out;
+ }
+
+ for (i = 0; i < TW_Q_LENGTH; i++) {
+ tw_dev->event_queue[i] = (TW_Event *)((unsigned char *)tw_dev->event_queue[0] + (i * sizeof(TW_Event)));
+ tw_dev->free_queue[i] = i;
+ tw_dev->state[i] = TW_S_INITIAL;
+ }
+
+ tw_dev->free_head = TW_Q_START;
+ tw_dev->free_tail = TW_Q_START;
+ tw_dev->error_sequence_id = 1;
+ tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
+
+ mutex_init(&tw_dev->ioctl_lock);
+ init_waitqueue_head(&tw_dev->ioctl_wqueue);
+
+ retval = 0;
+out:
+ return retval;
+} /* End twl_initialize_device_extension() */
+
+/* This function will perform a pci-dma unmap */
+static void twl_unmap_scsi_data(TW_Device_Extension *tw_dev, int request_id)
+{
+ struct scsi_cmnd *cmd = tw_dev->srb[request_id];
+
+ if (cmd->SCp.phase == TW_PHASE_SGLIST)
+ scsi_dma_unmap(cmd);
+} /* End twl_unmap_scsi_data() */
+
+/* This function will handle attention interrupts */
+static int twl_handle_attention_interrupt(TW_Device_Extension *tw_dev)
+{
+ int retval = 1;
+ u32 request_id, doorbell;
+
+ /* Read doorbell status */
+ doorbell = readl(TWL_HOBDB_REG_ADDR(tw_dev));
+
+ /* Check for controller errors */
+ if (doorbell & TWL_DOORBELL_CONTROLLER_ERROR) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xd, "Microcontroller Error: clearing");
+ goto out;
+ }
+
+ /* Check if we need to perform an AEN drain */
+ if (doorbell & TWL_DOORBELL_ATTENTION_INTERRUPT) {
+ if (!(test_and_set_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags))) {
+ twl_get_request_id(tw_dev, &request_id);
+ if (twl_aen_read_queue(tw_dev, request_id)) {
+ tw_dev->state[request_id] = TW_S_COMPLETED;
+ twl_free_request_id(tw_dev, request_id);
+ clear_bit(TW_IN_ATTENTION_LOOP, &tw_dev->flags);
+ }
+ }
+ }
+
+ retval = 0;
+out:
+ /* Clear doorbell interrupt */
+ TWL_CLEAR_DB_INTERRUPT(tw_dev);
+
+ /* Make sure the clear was flushed by reading it back */
+ readl(TWL_HOBDBC_REG_ADDR(tw_dev));
+
+ return retval;
+} /* End twl_handle_attention_interrupt() */
+
+/* Interrupt service routine */
+static irqreturn_t twl_interrupt(int irq, void *dev_instance)
+{
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)dev_instance;
+ int i, handled = 0, error = 0;
+ dma_addr_t mfa = 0;
+ u32 reg, regl, regh, response, request_id = 0;
+ struct scsi_cmnd *cmd;
+ TW_Command_Full *full_command_packet;
+
+ spin_lock(tw_dev->host->host_lock);
+
+ /* Read host interrupt status */
+ reg = readl(TWL_HISTAT_REG_ADDR(tw_dev));
+
+ /* Check if this is our interrupt, otherwise bail */
+ if (!(reg & TWL_HISTATUS_VALID_INTERRUPT))
+ goto twl_interrupt_bail;
+
+ handled = 1;
+
+ /* If we are resetting, bail */
+ if (test_bit(TW_IN_RESET, &tw_dev->flags))
+ goto twl_interrupt_bail;
+
+ /* Attention interrupt */
+ if (reg & TWL_HISTATUS_ATTENTION_INTERRUPT) {
+ if (twl_handle_attention_interrupt(tw_dev)) {
+ TWL_MASK_INTERRUPTS(tw_dev);
+ goto twl_interrupt_bail;
+ }
+ }
+
+ /* Response interrupt */
+ while (reg & TWL_HISTATUS_RESPONSE_INTERRUPT) {
+ if (sizeof(dma_addr_t) > 4) {
+ regh = readl(TWL_HOBQPH_REG_ADDR(tw_dev));
+ regl = readl(TWL_HOBQPL_REG_ADDR(tw_dev));
+ mfa = ((u64)regh << 32) | regl;
+ } else
+ mfa = readl(TWL_HOBQPL_REG_ADDR(tw_dev));
+
+ error = 0;
+ response = (u32)mfa;
+
+ /* Check for command packet error */
+ if (!TW_NOTMFA_OUT(response)) {
+ for (i=0;i<TW_Q_LENGTH;i++) {
+ if (tw_dev->sense_buffer_phys[i] == mfa) {
+ request_id = le16_to_cpu(tw_dev->sense_buffer_virt[i]->header_desc.request_id);
+ if (tw_dev->srb[request_id] != NULL)
+ error = twl_fill_sense(tw_dev, i, request_id, 1, 1);
+ else {
+ /* Skip ioctl error prints */
+ if (request_id != tw_dev->chrdev_request_id)
+ error = twl_fill_sense(tw_dev, i, request_id, 0, 1);
+ else
+ memcpy(tw_dev->command_packet_virt[request_id], tw_dev->sense_buffer_virt[i], sizeof(TW_Command_Apache_Header));
+ }
+
+ /* Now re-post the sense buffer */
+ writel((u32)((u64)tw_dev->sense_buffer_phys[i] >> 32), TWL_HOBQPH_REG_ADDR(tw_dev));
+ writel((u32)tw_dev->sense_buffer_phys[i], TWL_HOBQPL_REG_ADDR(tw_dev));
+ break;
+ }
+ }
+ } else
+ request_id = TW_RESID_OUT(response);
+
+ full_command_packet = tw_dev->command_packet_virt[request_id];
+
+ /* Check for correct state */
+ if (tw_dev->state[request_id] != TW_S_POSTED) {
+ if (tw_dev->srb[request_id] != NULL) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xe, "Received a request id that wasn't posted");
+ TWL_MASK_INTERRUPTS(tw_dev);
+ goto twl_interrupt_bail;
+ }
+ }
+
+ /* Check for internal command completion */
+ if (tw_dev->srb[request_id] == NULL) {
+ if (request_id != tw_dev->chrdev_request_id) {
+ if (twl_aen_complete(tw_dev, request_id))
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0xf, "Error completing AEN during attention interrupt");
+ } else {
+ tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
+ wake_up(&tw_dev->ioctl_wqueue);
+ }
+ } else {
+ cmd = tw_dev->srb[request_id];
+
+ if (!error)
+ cmd->result = (DID_OK << 16);
+
+ /* Report residual bytes for single sgl */
+ if ((scsi_sg_count(cmd) <= 1) && (full_command_packet->command.newcommand.status == 0)) {
+ if (full_command_packet->command.newcommand.sg_list[0].length < scsi_bufflen(tw_dev->srb[request_id]))
+ scsi_set_resid(cmd, scsi_bufflen(cmd) - full_command_packet->command.newcommand.sg_list[0].length);
+ }
+
+ /* Now complete the io */
+ tw_dev->state[request_id] = TW_S_COMPLETED;
+ twl_free_request_id(tw_dev, request_id);
+ tw_dev->posted_request_count--;
+ tw_dev->srb[request_id]->scsi_done(tw_dev->srb[request_id]);
+ twl_unmap_scsi_data(tw_dev, request_id);
+ }
+
+ /* Check for another response interrupt */
+ reg = readl(TWL_HISTAT_REG_ADDR(tw_dev));
+ }
+
+twl_interrupt_bail:
+ spin_unlock(tw_dev->host->host_lock);
+ return IRQ_RETVAL(handled);
+} /* End twl_interrupt() */
+
+/* This function will poll for a register change */
+static int twl_poll_register(TW_Device_Extension *tw_dev, void *reg, u32 value, u32 result, int seconds)
+{
+ unsigned long before;
+ int retval = 1;
+ u32 reg_value;
+
+ reg_value = readl(reg);
+ before = jiffies;
+
+ while ((reg_value & value) != result) {
+ reg_value = readl(reg);
+ if (time_after(jiffies, before + HZ * seconds))
+ goto out;
+ msleep(50);
+ }
+ retval = 0;
+out:
+ return retval;
+} /* End twl_poll_register() */
+
+/* This function will reset a controller */
+static int twl_reset_sequence(TW_Device_Extension *tw_dev, int soft_reset)
+{
+ int retval = 1;
+ int i = 0;
+ u32 status = 0;
+ unsigned short fw_on_ctlr_srl = 0, fw_on_ctlr_arch_id = 0;
+ unsigned short fw_on_ctlr_branch = 0, fw_on_ctlr_build = 0;
+ u32 init_connect_result = 0;
+ int tries = 0;
+ int do_soft_reset = soft_reset;
+
+ while (tries < TW_MAX_RESET_TRIES) {
+ /* Do a soft reset if one is needed */
+ if (do_soft_reset) {
+ TWL_SOFT_RESET(tw_dev);
+
+ /* Make sure controller is in a good state */
+ if (twl_poll_register(tw_dev, TWL_SCRPD3_REG_ADDR(tw_dev), TWL_CONTROLLER_READY, 0x0, 30)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x10, "Controller never went non-ready during reset sequence");
+ tries++;
+ continue;
+ }
+ if (twl_poll_register(tw_dev, TWL_SCRPD3_REG_ADDR(tw_dev), TWL_CONTROLLER_READY, TWL_CONTROLLER_READY, 60)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x11, "Controller not ready during reset sequence");
+ tries++;
+ continue;
+ }
+ }
+
+ /* Initconnect */
+ if (twl_initconnection(tw_dev, TW_INIT_MESSAGE_CREDITS,
+ TW_EXTENDED_INIT_CONNECT, TW_CURRENT_DRIVER_SRL,
+ TW_9750_ARCH_ID, TW_CURRENT_DRIVER_BRANCH,
+ TW_CURRENT_DRIVER_BUILD, &fw_on_ctlr_srl,
+ &fw_on_ctlr_arch_id, &fw_on_ctlr_branch,
+ &fw_on_ctlr_build, &init_connect_result)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x12, "Initconnection failed while checking SRL");
+ do_soft_reset = 1;
+ tries++;
+ continue;
+ }
+
+ /* Load sense buffers */
+ while (i < TW_Q_LENGTH) {
+ writel((u32)((u64)tw_dev->sense_buffer_phys[i] >> 32), TWL_HOBQPH_REG_ADDR(tw_dev));
+ writel((u32)tw_dev->sense_buffer_phys[i], TWL_HOBQPL_REG_ADDR(tw_dev));
+
+ /* Check status for over-run after each write */
+ status = readl(TWL_STATUS_REG_ADDR(tw_dev));
+ if (!(status & TWL_STATUS_OVERRUN_SUBMIT))
+ i++;
+ }
+
+ /* Now check status */
+ status = readl(TWL_STATUS_REG_ADDR(tw_dev));
+ if (status) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x13, "Bad controller status after loading sense buffers");
+ do_soft_reset = 1;
+ tries++;
+ continue;
+ }
+
+ /* Drain the AEN queue */
+ if (twl_aen_drain_queue(tw_dev, soft_reset)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x14, "AEN drain failed during reset sequence");
+ do_soft_reset = 1;
+ tries++;
+ continue;
+ }
+
+ /* Load rest of compatibility struct */
+ strncpy(tw_dev->tw_compat_info.driver_version, TW_DRIVER_VERSION, strlen(TW_DRIVER_VERSION));
+ tw_dev->tw_compat_info.driver_srl_high = TW_CURRENT_DRIVER_SRL;
+ tw_dev->tw_compat_info.driver_branch_high = TW_CURRENT_DRIVER_BRANCH;
+ tw_dev->tw_compat_info.driver_build_high = TW_CURRENT_DRIVER_BUILD;
+ tw_dev->tw_compat_info.driver_srl_low = TW_BASE_FW_SRL;
+ tw_dev->tw_compat_info.driver_branch_low = TW_BASE_FW_BRANCH;
+ tw_dev->tw_compat_info.driver_build_low = TW_BASE_FW_BUILD;
+ tw_dev->tw_compat_info.fw_on_ctlr_srl = fw_on_ctlr_srl;
+ tw_dev->tw_compat_info.fw_on_ctlr_branch = fw_on_ctlr_branch;
+ tw_dev->tw_compat_info.fw_on_ctlr_build = fw_on_ctlr_build;
+
+ /* If we got here, controller is in a good state */
+ retval = 0;
+ goto out;
+ }
+out:
+ return retval;
+} /* End twl_reset_sequence() */
+
+/* This function will reset a device extension */
+static int twl_reset_device_extension(TW_Device_Extension *tw_dev, int ioctl_reset)
+{
+ int i = 0, retval = 1;
+ unsigned long flags = 0;
+
+ /* Block SCSI requests while we are resetting */
+ if (ioctl_reset)
+ scsi_block_requests(tw_dev->host);
+
+ set_bit(TW_IN_RESET, &tw_dev->flags);
+ TWL_MASK_INTERRUPTS(tw_dev);
+ TWL_CLEAR_DB_INTERRUPT(tw_dev);
+
+ spin_lock_irqsave(tw_dev->host->host_lock, flags);
+
+ /* Abort all requests that are in progress */
+ for (i = 0; i < TW_Q_LENGTH; i++) {
+ if ((tw_dev->state[i] != TW_S_FINISHED) &&
+ (tw_dev->state[i] != TW_S_INITIAL) &&
+ (tw_dev->state[i] != TW_S_COMPLETED)) {
+ if (tw_dev->srb[i]) {
+ tw_dev->srb[i]->result = (DID_RESET << 16);
+ tw_dev->srb[i]->scsi_done(tw_dev->srb[i]);
+ twl_unmap_scsi_data(tw_dev, i);
+ }
+ }
+ }
+
+ /* Reset queues and counts */
+ for (i = 0; i < TW_Q_LENGTH; i++) {
+ tw_dev->free_queue[i] = i;
+ tw_dev->state[i] = TW_S_INITIAL;
+ }
+ tw_dev->free_head = TW_Q_START;
+ tw_dev->free_tail = TW_Q_START;
+ tw_dev->posted_request_count = 0;
+
+ spin_unlock_irqrestore(tw_dev->host->host_lock, flags);
+
+ if (twl_reset_sequence(tw_dev, 1))
+ goto out;
+
+ TWL_UNMASK_INTERRUPTS(tw_dev);
+
+ clear_bit(TW_IN_RESET, &tw_dev->flags);
+ tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
+
+ retval = 0;
+out:
+ if (ioctl_reset)
+ scsi_unblock_requests(tw_dev->host);
+ return retval;
+} /* End twl_reset_device_extension() */
+
+/* This funciton returns unit geometry in cylinders/heads/sectors */
+static int twl_scsi_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int geom[])
+{
+ int heads, sectors;
+ TW_Device_Extension *tw_dev;
+
+ tw_dev = (TW_Device_Extension *)sdev->host->hostdata;
+
+ if (capacity >= 0x200000) {
+ heads = 255;
+ sectors = 63;
+ } else {
+ heads = 64;
+ sectors = 32;
+ }
+
+ geom[0] = heads;
+ geom[1] = sectors;
+ geom[2] = sector_div(capacity, heads * sectors); /* cylinders */
+
+ return 0;
+} /* End twl_scsi_biosparam() */
+
+/* This is the new scsi eh reset function */
+static int twl_scsi_eh_reset(struct scsi_cmnd *SCpnt)
+{
+ TW_Device_Extension *tw_dev = NULL;
+ int retval = FAILED;
+
+ tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
+
+ tw_dev->num_resets++;
+
+ sdev_printk(KERN_WARNING, SCpnt->device,
+ "WARNING: (0x%02X:0x%04X): Command (0x%x) timed out, resetting card.\n",
+ TW_DRIVER, 0x2c, SCpnt->cmnd[0]);
+
+ /* Make sure we are not issuing an ioctl or resetting from ioctl */
+ mutex_lock(&tw_dev->ioctl_lock);
+
+ /* Now reset the card and some of the device extension data */
+ if (twl_reset_device_extension(tw_dev, 0)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x15, "Controller reset failed during scsi host reset");
+ goto out;
+ }
+
+ retval = SUCCESS;
+out:
+ mutex_unlock(&tw_dev->ioctl_lock);
+ return retval;
+} /* End twl_scsi_eh_reset() */
+
+/* This is the main scsi queue function to handle scsi opcodes */
+static int twl_scsi_queue(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
+{
+ int request_id, retval;
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)SCpnt->device->host->hostdata;
+
+ /* If we are resetting due to timed out ioctl, report as busy */
+ if (test_bit(TW_IN_RESET, &tw_dev->flags)) {
+ retval = SCSI_MLQUEUE_HOST_BUSY;
+ goto out;
+ }
+
+ /* Save done function into scsi_cmnd struct */
+ SCpnt->scsi_done = done;
+
+ /* Get a free request id */
+ twl_get_request_id(tw_dev, &request_id);
+
+ /* Save the scsi command for use by the ISR */
+ tw_dev->srb[request_id] = SCpnt;
+
+ /* Initialize phase to zero */
+ SCpnt->SCp.phase = TW_PHASE_INITIAL;
+
+ retval = twl_scsiop_execute_scsi(tw_dev, request_id, NULL, 0, NULL);
+ if (retval) {
+ tw_dev->state[request_id] = TW_S_COMPLETED;
+ twl_free_request_id(tw_dev, request_id);
+ SCpnt->result = (DID_ERROR << 16);
+ done(SCpnt);
+ retval = 0;
+ }
+out:
+ return retval;
+} /* End twl_scsi_queue() */
+
+/* This function tells the controller to shut down */
+static void __twl_shutdown(TW_Device_Extension *tw_dev)
+{
+ /* Disable interrupts */
+ TWL_MASK_INTERRUPTS(tw_dev);
+
+ /* Free up the IRQ */
+ free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
+
+ printk(KERN_WARNING "3w-sas: Shutting down host %d.\n", tw_dev->host->host_no);
+
+ /* Tell the card we are shutting down */
+ if (twl_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x16, "Connection shutdown failed");
+ } else {
+ printk(KERN_WARNING "3w-sas: Shutdown complete.\n");
+ }
+
+ /* Clear doorbell interrupt just before exit */
+ TWL_CLEAR_DB_INTERRUPT(tw_dev);
+} /* End __twl_shutdown() */
+
+/* Wrapper for __twl_shutdown */
+static void twl_shutdown(struct pci_dev *pdev)
+{
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ TW_Device_Extension *tw_dev;
+
+ if (!host)
+ return;
+
+ tw_dev = (TW_Device_Extension *)host->hostdata;
+
+ if (tw_dev->online)
+ __twl_shutdown(tw_dev);
+} /* End twl_shutdown() */
+
+/* This function configures unit settings when a unit is coming on-line */
+static int twl_slave_configure(struct scsi_device *sdev)
+{
+ /* Force 60 second timeout */
+ blk_queue_rq_timeout(sdev->request_queue, 60 * HZ);
+
+ return 0;
+} /* End twl_slave_configure() */
+
+/* scsi_host_template initializer */
+static struct scsi_host_template driver_template = {
+ .module = THIS_MODULE,
+ .name = "3w-sas",
+ .queuecommand = twl_scsi_queue,
+ .eh_host_reset_handler = twl_scsi_eh_reset,
+ .bios_param = twl_scsi_biosparam,
+ .change_queue_depth = twl_change_queue_depth,
+ .can_queue = TW_Q_LENGTH-2,
+ .slave_configure = twl_slave_configure,
+ .this_id = -1,
+ .sg_tablesize = TW_LIBERATOR_MAX_SGL_LENGTH,
+ .max_sectors = TW_MAX_SECTORS,
+ .cmd_per_lun = TW_MAX_CMDS_PER_LUN,
+ .use_clustering = ENABLE_CLUSTERING,
+ .shost_attrs = twl_host_attrs,
+ .emulated = 1
+};
+
+/* This function will probe and initialize a card */
+static int __devinit twl_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
+{
+ struct Scsi_Host *host = NULL;
+ TW_Device_Extension *tw_dev;
+ int retval = -ENODEV;
+ int *ptr_phycount, phycount=0;
+
+ retval = pci_enable_device(pdev);
+ if (retval) {
+ TW_PRINTK(host, TW_DRIVER, 0x17, "Failed to enable pci device");
+ goto out_disable_device;
+ }
+
+ pci_set_master(pdev);
+ pci_try_set_mwi(pdev);
+
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
+ TW_PRINTK(host, TW_DRIVER, 0x18, "Failed to set dma mask");
+ retval = -ENODEV;
+ goto out_disable_device;
+ }
+
+ host = scsi_host_alloc(&driver_template, sizeof(TW_Device_Extension));
+ if (!host) {
+ TW_PRINTK(host, TW_DRIVER, 0x19, "Failed to allocate memory for device extension");
+ retval = -ENOMEM;
+ goto out_disable_device;
+ }
+ tw_dev = shost_priv(host);
+
+ /* Save values to device extension */
+ tw_dev->host = host;
+ tw_dev->tw_pci_dev = pdev;
+
+ if (twl_initialize_device_extension(tw_dev)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1a, "Failed to initialize device extension");
+ goto out_free_device_extension;
+ }
+
+ /* Request IO regions */
+ retval = pci_request_regions(pdev, "3w-sas");
+ if (retval) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1b, "Failed to get mem region");
+ goto out_free_device_extension;
+ }
+
+ /* Save base address, use region 1 */
+ tw_dev->base_addr = pci_iomap(pdev, 1, 0);
+ if (!tw_dev->base_addr) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1c, "Failed to ioremap");
+ goto out_release_mem_region;
+ }
+
+ /* Disable interrupts on the card */
+ TWL_MASK_INTERRUPTS(tw_dev);
+
+ /* Initialize the card */
+ if (twl_reset_sequence(tw_dev, 0)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1d, "Controller reset failed during probe");
+ goto out_iounmap;
+ }
+
+ /* Set host specific parameters */
+ host->max_id = TW_MAX_UNITS;
+ host->max_cmd_len = TW_MAX_CDB_LEN;
+ host->max_lun = TW_MAX_LUNS;
+ host->max_channel = 0;
+
+ /* Register the card with the kernel SCSI layer */
+ retval = scsi_add_host(host, &pdev->dev);
+ if (retval) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1e, "scsi add host failed");
+ goto out_iounmap;
+ }
+
+ pci_set_drvdata(pdev, host);
+
+ printk(KERN_WARNING "3w-sas: scsi%d: Found an LSI 3ware %s Controller at 0x%llx, IRQ: %d.\n",
+ host->host_no,
+ (char *)twl_get_param(tw_dev, 1, TW_VERSION_TABLE,
+ TW_PARAM_MODEL, TW_PARAM_MODEL_LENGTH),
+ (u64)pci_resource_start(pdev, 1), pdev->irq);
+
+ ptr_phycount = twl_get_param(tw_dev, 2, TW_PARAM_PHY_SUMMARY_TABLE,
+ TW_PARAM_PHYCOUNT, TW_PARAM_PHYCOUNT_LENGTH);
+ if (ptr_phycount)
+ phycount = le32_to_cpu(*(int *)ptr_phycount);
+
+ printk(KERN_WARNING "3w-sas: scsi%d: Firmware %s, BIOS %s, Phys: %d.\n",
+ host->host_no,
+ (char *)twl_get_param(tw_dev, 1, TW_VERSION_TABLE,
+ TW_PARAM_FWVER, TW_PARAM_FWVER_LENGTH),
+ (char *)twl_get_param(tw_dev, 2, TW_VERSION_TABLE,
+ TW_PARAM_BIOSVER, TW_PARAM_BIOSVER_LENGTH),
+ phycount);
+
+ /* Try to enable MSI */
+ if (use_msi && !pci_enable_msi(pdev))
+ set_bit(TW_USING_MSI, &tw_dev->flags);
+
+ /* Now setup the interrupt handler */
+ retval = request_irq(pdev->irq, twl_interrupt, IRQF_SHARED, "3w-sas", tw_dev);
+ if (retval) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1f, "Error requesting IRQ");
+ goto out_remove_host;
+ }
+
+ twl_device_extension_list[twl_device_extension_count] = tw_dev;
+ twl_device_extension_count++;
+
+ /* Re-enable interrupts on the card */
+ TWL_UNMASK_INTERRUPTS(tw_dev);
+
+ /* Finally, scan the host */
+ scsi_scan_host(host);
+
+ /* Add sysfs binary files */
+ if (sysfs_create_bin_file(&host->shost_dev.kobj, &twl_sysfs_aen_read_attr))
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x20, "Failed to create sysfs binary file: 3ware_aen_read");
+ if (sysfs_create_bin_file(&host->shost_dev.kobj, &twl_sysfs_compat_info_attr))
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x21, "Failed to create sysfs binary file: 3ware_compat_info");
+
+ if (twl_major == -1) {
+ if ((twl_major = register_chrdev (0, "twl", &twl_fops)) < 0)
+ TW_PRINTK(host, TW_DRIVER, 0x22, "Failed to register character device");
+ }
+ tw_dev->online = 1;
+ return 0;
+
+out_remove_host:
+ if (test_bit(TW_USING_MSI, &tw_dev->flags))
+ pci_disable_msi(pdev);
+ scsi_remove_host(host);
+out_iounmap:
+ iounmap(tw_dev->base_addr);
+out_release_mem_region:
+ pci_release_regions(pdev);
+out_free_device_extension:
+ twl_free_device_extension(tw_dev);
+ scsi_host_put(host);
+out_disable_device:
+ pci_disable_device(pdev);
+
+ return retval;
+} /* End twl_probe() */
+
+/* This function is called to remove a device */
+static void twl_remove(struct pci_dev *pdev)
+{
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ TW_Device_Extension *tw_dev;
+
+ if (!host)
+ return;
+
+ tw_dev = (TW_Device_Extension *)host->hostdata;
+
+ if (!tw_dev->online)
+ return;
+
+ /* Remove sysfs binary files */
+ sysfs_remove_bin_file(&host->shost_dev.kobj, &twl_sysfs_aen_read_attr);
+ sysfs_remove_bin_file(&host->shost_dev.kobj, &twl_sysfs_compat_info_attr);
+
+ scsi_remove_host(tw_dev->host);
+
+ /* Unregister character device */
+ if (twl_major >= 0) {
+ unregister_chrdev(twl_major, "twl");
+ twl_major = -1;
+ }
+
+ /* Shutdown the card */
+ __twl_shutdown(tw_dev);
+
+ /* Disable MSI if enabled */
+ if (test_bit(TW_USING_MSI, &tw_dev->flags))
+ pci_disable_msi(pdev);
+
+ /* Free IO remapping */
+ iounmap(tw_dev->base_addr);
+
+ /* Free up the mem region */
+ pci_release_regions(pdev);
+
+ /* Free up device extension resources */
+ twl_free_device_extension(tw_dev);
+
+ scsi_host_put(tw_dev->host);
+ pci_disable_device(pdev);
+ twl_device_extension_count--;
+} /* End twl_remove() */
+
+#ifdef CONFIG_PM
+/* This function is called on PCI suspend */
+static int twl_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
+
+ printk(KERN_WARNING "3w-sas: Suspending host %d.\n", tw_dev->host->host_no);
+ /* Disable interrupts */
+ TWL_MASK_INTERRUPTS(tw_dev);
+
+ free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
+
+ /* Tell the card we are shutting down */
+ if (twl_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x23, "Connection shutdown failed during suspend");
+ } else {
+ printk(KERN_WARNING "3w-sas: Suspend complete.\n");
+ }
+
+ /* Clear doorbell interrupt */
+ TWL_CLEAR_DB_INTERRUPT(tw_dev);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ return 0;
+} /* End twl_suspend() */
+
+/* This function is called on PCI resume */
+static int twl_resume(struct pci_dev *pdev)
+{
+ int retval = 0;
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
+
+ printk(KERN_WARNING "3w-sas: Resuming host %d.\n", tw_dev->host->host_no);
+ pci_set_power_state(pdev, PCI_D0);
+ pci_enable_wake(pdev, PCI_D0, 0);
+ pci_restore_state(pdev);
+
+ retval = pci_enable_device(pdev);
+ if (retval) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x24, "Enable device failed during resume");
+ return retval;
+ }
+
+ pci_set_master(pdev);
+ pci_try_set_mwi(pdev);
+
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
+ TW_PRINTK(host, TW_DRIVER, 0x25, "Failed to set dma mask during resume");
+ retval = -ENODEV;
+ goto out_disable_device;
+ }
+
+ /* Initialize the card */
+ if (twl_reset_sequence(tw_dev, 0)) {
+ retval = -ENODEV;
+ goto out_disable_device;
+ }
+
+ /* Now setup the interrupt handler */
+ retval = request_irq(pdev->irq, twl_interrupt, IRQF_SHARED, "3w-sas", tw_dev);
+ if (retval) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x26, "Error requesting IRQ during resume");
+ retval = -ENODEV;
+ goto out_disable_device;
+ }
+
+ /* Now enable MSI if enabled */
+ if (test_bit(TW_USING_MSI, &tw_dev->flags))
+ pci_enable_msi(pdev);
+
+ /* Re-enable interrupts on the card */
+ TWL_UNMASK_INTERRUPTS(tw_dev);
+
+ printk(KERN_WARNING "3w-sas: Resume complete.\n");
+ return 0;
+
+out_disable_device:
+ scsi_remove_host(host);
+ pci_disable_device(pdev);
+
+ return retval;
+} /* End twl_resume() */
+#endif
+
+/* PCI Devices supported by this driver */
+static struct pci_device_id twl_pci_tbl[] __devinitdata = {
+ { PCI_VDEVICE(3WARE, PCI_DEVICE_ID_3WARE_9750) },
+ { }
+};
+MODULE_DEVICE_TABLE(pci, twl_pci_tbl);
+
+/* pci_driver initializer */
+static struct pci_driver twl_driver = {
+ .name = "3w-sas",
+ .id_table = twl_pci_tbl,
+ .probe = twl_probe,
+ .remove = twl_remove,
+#ifdef CONFIG_PM
+ .suspend = twl_suspend,
+ .resume = twl_resume,
+#endif
+ .shutdown = twl_shutdown
+};
+
+/* This function is called on driver initialization */
+static int __init twl_init(void)
+{
+ printk(KERN_INFO "LSI 3ware SAS/SATA-RAID Controller device driver for Linux v%s.\n", TW_DRIVER_VERSION);
+
+ return pci_register_driver(&twl_driver);
+} /* End twl_init() */
+
+/* This function is called on driver exit */
+static void __exit twl_exit(void)
+{
+ pci_unregister_driver(&twl_driver);
+} /* End twl_exit() */
+
+module_init(twl_init);
+module_exit(twl_exit);
+
diff --git a/drivers/scsi/3w-sas.h b/drivers/scsi/3w-sas.h
new file mode 100644
index 000000000000..d474892701d4
--- /dev/null
+++ b/drivers/scsi/3w-sas.h
@@ -0,0 +1,396 @@
+/*
+ 3w-sas.h -- LSI 3ware SAS/SATA-RAID Controller device driver for Linux.
+
+ Written By: Adam Radford <linuxraid@lsi.com>
+
+ Copyright (C) 2009 LSI Corporation.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ NO WARRANTY
+ THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ solely responsible for determining the appropriateness of using and
+ distributing the Program and assumes all risks associated with its
+ exercise of rights under this Agreement, including but not limited to
+ the risks and costs of program errors, damage to or loss of data,
+ programs or equipment, and unavailability or interruption of operations.
+
+ DISCLAIMER OF LIABILITY
+ NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ Bugs/Comments/Suggestions should be mailed to:
+ linuxraid@lsi.com
+
+ For more information, goto:
+ http://www.lsi.com
+*/
+
+#ifndef _3W_SAS_H
+#define _3W_SAS_H
+
+/* AEN severity table */
+static char *twl_aen_severity_table[] =
+{
+ "None", "ERROR", "WARNING", "INFO", "DEBUG", NULL
+};
+
+/* Liberator register offsets */
+#define TWL_STATUS 0x0 /* Status */
+#define TWL_HIBDB 0x20 /* Inbound doorbell */
+#define TWL_HISTAT 0x30 /* Host interrupt status */
+#define TWL_HIMASK 0x34 /* Host interrupt mask */
+#define TWL_HOBDB 0x9C /* Outbound doorbell */
+#define TWL_HOBDBC 0xA0 /* Outbound doorbell clear */
+#define TWL_SCRPD3 0xBC /* Scratchpad */
+#define TWL_HIBQPL 0xC0 /* Host inbound Q low */
+#define TWL_HIBQPH 0xC4 /* Host inbound Q high */
+#define TWL_HOBQPL 0xC8 /* Host outbound Q low */
+#define TWL_HOBQPH 0xCC /* Host outbound Q high */
+#define TWL_HISTATUS_VALID_INTERRUPT 0xC
+#define TWL_HISTATUS_ATTENTION_INTERRUPT 0x4
+#define TWL_HISTATUS_RESPONSE_INTERRUPT 0x8
+#define TWL_STATUS_OVERRUN_SUBMIT 0x2000
+#define TWL_ISSUE_SOFT_RESET 0x100
+#define TWL_CONTROLLER_READY 0x2000
+#define TWL_DOORBELL_CONTROLLER_ERROR 0x200000
+#define TWL_DOORBELL_ATTENTION_INTERRUPT 0x40000
+#define TWL_PULL_MODE 0x1
+
+/* Command packet opcodes used by the driver */
+#define TW_OP_INIT_CONNECTION 0x1
+#define TW_OP_GET_PARAM 0x12
+#define TW_OP_SET_PARAM 0x13
+#define TW_OP_EXECUTE_SCSI 0x10
+
+/* Asynchronous Event Notification (AEN) codes used by the driver */
+#define TW_AEN_QUEUE_EMPTY 0x0000
+#define TW_AEN_SOFT_RESET 0x0001
+#define TW_AEN_SYNC_TIME_WITH_HOST 0x031
+#define TW_AEN_SEVERITY_ERROR 0x1
+#define TW_AEN_SEVERITY_DEBUG 0x4
+#define TW_AEN_NOT_RETRIEVED 0x1
+
+/* Command state defines */
+#define TW_S_INITIAL 0x1 /* Initial state */
+#define TW_S_STARTED 0x2 /* Id in use */
+#define TW_S_POSTED 0x4 /* Posted to the controller */
+#define TW_S_COMPLETED 0x8 /* Completed by isr */
+#define TW_S_FINISHED 0x10 /* I/O completely done */
+
+/* Compatibility defines */
+#define TW_9750_ARCH_ID 10
+#define TW_CURRENT_DRIVER_SRL 40
+#define TW_CURRENT_DRIVER_BUILD 0
+#define TW_CURRENT_DRIVER_BRANCH 0
+
+/* Phase defines */
+#define TW_PHASE_INITIAL 0
+#define TW_PHASE_SGLIST 2
+
+/* Misc defines */
+#define TW_SECTOR_SIZE 512
+#define TW_MAX_UNITS 32
+#define TW_INIT_MESSAGE_CREDITS 0x100
+#define TW_INIT_COMMAND_PACKET_SIZE 0x3
+#define TW_INIT_COMMAND_PACKET_SIZE_EXTENDED 0x6
+#define TW_EXTENDED_INIT_CONNECT 0x2
+#define TW_BASE_FW_SRL 24
+#define TW_BASE_FW_BRANCH 0
+#define TW_BASE_FW_BUILD 1
+#define TW_Q_LENGTH 256
+#define TW_Q_START 0
+#define TW_MAX_SLOT 32
+#define TW_MAX_RESET_TRIES 2
+#define TW_MAX_CMDS_PER_LUN 254
+#define TW_MAX_AEN_DRAIN 255
+#define TW_IN_RESET 2
+#define TW_USING_MSI 3
+#define TW_IN_ATTENTION_LOOP 4
+#define TW_MAX_SECTORS 256
+#define TW_MAX_CDB_LEN 16
+#define TW_IOCTL_CHRDEV_TIMEOUT 60 /* 60 seconds */
+#define TW_IOCTL_CHRDEV_FREE -1
+#define TW_COMMAND_OFFSET 128 /* 128 bytes */
+#define TW_VERSION_TABLE 0x0402
+#define TW_TIMEKEEP_TABLE 0x040A
+#define TW_INFORMATION_TABLE 0x0403
+#define TW_PARAM_FWVER 3
+#define TW_PARAM_FWVER_LENGTH 16
+#define TW_PARAM_BIOSVER 4
+#define TW_PARAM_BIOSVER_LENGTH 16
+#define TW_PARAM_MODEL 8
+#define TW_PARAM_MODEL_LENGTH 16
+#define TW_PARAM_PHY_SUMMARY_TABLE 1
+#define TW_PARAM_PHYCOUNT 2
+#define TW_PARAM_PHYCOUNT_LENGTH 1
+#define TW_IOCTL_FIRMWARE_PASS_THROUGH 0x108 // Used by smartmontools
+#define TW_ALLOCATION_LENGTH 128
+#define TW_SENSE_DATA_LENGTH 18
+#define TW_ERROR_LOGICAL_UNIT_NOT_SUPPORTED 0x10a
+#define TW_ERROR_INVALID_FIELD_IN_CDB 0x10d
+#define TW_ERROR_UNIT_OFFLINE 0x128
+#define TW_MESSAGE_SOURCE_CONTROLLER_ERROR 3
+#define TW_MESSAGE_SOURCE_CONTROLLER_EVENT 4
+#define TW_DRIVER 6
+#ifndef PCI_DEVICE_ID_3WARE_9750
+#define PCI_DEVICE_ID_3WARE_9750 0x1010
+#endif
+
+/* Bitmask macros to eliminate bitfields */
+
+/* opcode: 5, reserved: 3 */
+#define TW_OPRES_IN(x,y) ((x << 5) | (y & 0x1f))
+#define TW_OP_OUT(x) (x & 0x1f)
+
+/* opcode: 5, sgloffset: 3 */
+#define TW_OPSGL_IN(x,y) ((x << 5) | (y & 0x1f))
+#define TW_SGL_OUT(x) ((x >> 5) & 0x7)
+
+/* severity: 3, reserved: 5 */
+#define TW_SEV_OUT(x) (x & 0x7)
+
+/* not_mfa: 1, reserved: 7, status: 8, request_id: 16 */
+#define TW_RESID_OUT(x) ((x >> 16) & 0xffff)
+#define TW_NOTMFA_OUT(x) (x & 0x1)
+
+/* request_id: 12, lun: 4 */
+#define TW_REQ_LUN_IN(lun, request_id) (((lun << 12) & 0xf000) | (request_id & 0xfff))
+#define TW_LUN_OUT(lun) ((lun >> 12) & 0xf)
+
+/* Register access macros */
+#define TWL_STATUS_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_STATUS)
+#define TWL_HOBQPL_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HOBQPL)
+#define TWL_HOBQPH_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HOBQPH)
+#define TWL_HOBDB_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HOBDB)
+#define TWL_HOBDBC_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HOBDBC)
+#define TWL_HIMASK_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HIMASK)
+#define TWL_HISTAT_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HISTAT)
+#define TWL_HIBQPH_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HIBQPH)
+#define TWL_HIBQPL_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HIBQPL)
+#define TWL_HIBDB_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_HIBDB)
+#define TWL_SCRPD3_REG_ADDR(x) ((unsigned char __iomem *)x->base_addr + TWL_SCRPD3)
+#define TWL_MASK_INTERRUPTS(x) (writel(~0, TWL_HIMASK_REG_ADDR(tw_dev)))
+#define TWL_UNMASK_INTERRUPTS(x) (writel(~TWL_HISTATUS_VALID_INTERRUPT, TWL_HIMASK_REG_ADDR(tw_dev)))
+#define TWL_CLEAR_DB_INTERRUPT(x) (writel(~0, TWL_HOBDBC_REG_ADDR(tw_dev)))
+#define TWL_SOFT_RESET(x) (writel(TWL_ISSUE_SOFT_RESET, TWL_HIBDB_REG_ADDR(tw_dev)))
+
+/* Macros */
+#define TW_PRINTK(h,a,b,c) { \
+if (h) \
+printk(KERN_WARNING "3w-sas: scsi%d: ERROR: (0x%02X:0x%04X): %s.\n",h->host_no,a,b,c); \
+else \
+printk(KERN_WARNING "3w-sas: ERROR: (0x%02X:0x%04X): %s.\n",a,b,c); \
+}
+#define TW_MAX_LUNS 16
+#define TW_COMMAND_SIZE (sizeof(dma_addr_t) > 4 ? 6 : 4)
+#define TW_LIBERATOR_MAX_SGL_LENGTH (sizeof(dma_addr_t) > 4 ? 46 : 92)
+#define TW_LIBERATOR_MAX_SGL_LENGTH_OLD (sizeof(dma_addr_t) > 4 ? 47 : 94)
+#define TW_PADDING_LENGTH_LIBERATOR 136
+#define TW_PADDING_LENGTH_LIBERATOR_OLD 132
+#define TW_CPU_TO_SGL(x) (sizeof(dma_addr_t) > 4 ? cpu_to_le64(x) : cpu_to_le32(x))
+
+#pragma pack(1)
+
+/* SGL entry */
+typedef struct TAG_TW_SG_Entry_ISO {
+ dma_addr_t address;
+ dma_addr_t length;
+} TW_SG_Entry_ISO;
+
+/* Old Command Packet with ISO SGL */
+typedef struct TW_Command {
+ unsigned char opcode__sgloffset;
+ unsigned char size;
+ unsigned char request_id;
+ unsigned char unit__hostid;
+ /* Second DWORD */
+ unsigned char status;
+ unsigned char flags;
+ union {
+ unsigned short block_count;
+ unsigned short parameter_count;
+ } byte6_offset;
+ union {
+ struct {
+ u32 lba;
+ TW_SG_Entry_ISO sgl[TW_LIBERATOR_MAX_SGL_LENGTH_OLD];
+ unsigned char padding[TW_PADDING_LENGTH_LIBERATOR_OLD];
+ } io;
+ struct {
+ TW_SG_Entry_ISO sgl[TW_LIBERATOR_MAX_SGL_LENGTH_OLD];
+ u32 padding;
+ unsigned char padding2[TW_PADDING_LENGTH_LIBERATOR_OLD];
+ } param;
+ } byte8_offset;
+} TW_Command;
+
+/* New Command Packet with ISO SGL */
+typedef struct TAG_TW_Command_Apache {
+ unsigned char opcode__reserved;
+ unsigned char unit;
+ unsigned short request_id__lunl;
+ unsigned char status;
+ unsigned char sgl_offset;
+ unsigned short sgl_entries__lunh;
+ unsigned char cdb[16];
+ TW_SG_Entry_ISO sg_list[TW_LIBERATOR_MAX_SGL_LENGTH];
+ unsigned char padding[TW_PADDING_LENGTH_LIBERATOR];
+} TW_Command_Apache;
+
+/* New command packet header */
+typedef struct TAG_TW_Command_Apache_Header {
+ unsigned char sense_data[TW_SENSE_DATA_LENGTH];
+ struct {
+ char reserved[4];
+ unsigned short error;
+ unsigned char padding;
+ unsigned char severity__reserved;
+ } status_block;
+ unsigned char err_specific_desc[98];
+ struct {
+ unsigned char size_header;
+ unsigned short request_id;
+ unsigned char size_sense;
+ } header_desc;
+} TW_Command_Apache_Header;
+
+/* This struct is a union of the 2 command packets */
+typedef struct TAG_TW_Command_Full {
+ TW_Command_Apache_Header header;
+ union {
+ TW_Command oldcommand;
+ TW_Command_Apache newcommand;
+ } command;
+} TW_Command_Full;
+
+/* Initconnection structure */
+typedef struct TAG_TW_Initconnect {
+ unsigned char opcode__reserved;
+ unsigned char size;
+ unsigned char request_id;
+ unsigned char res2;
+ unsigned char status;
+ unsigned char flags;
+ unsigned short message_credits;
+ u32 features;
+ unsigned short fw_srl;
+ unsigned short fw_arch_id;
+ unsigned short fw_branch;
+ unsigned short fw_build;
+ u32 result;
+} TW_Initconnect;
+
+/* Event info structure */
+typedef struct TAG_TW_Event
+{
+ unsigned int sequence_id;
+ unsigned int time_stamp_sec;
+ unsigned short aen_code;
+ unsigned char severity;
+ unsigned char retrieved;
+ unsigned char repeat_count;
+ unsigned char parameter_len;
+ unsigned char parameter_data[98];
+} TW_Event;
+
+typedef struct TAG_TW_Ioctl_Driver_Command {
+ unsigned int control_code;
+ unsigned int status;
+ unsigned int unique_id;
+ unsigned int sequence_id;
+ unsigned int os_specific;
+ unsigned int buffer_length;
+} TW_Ioctl_Driver_Command;
+
+typedef struct TAG_TW_Ioctl_Apache {
+ TW_Ioctl_Driver_Command driver_command;
+ char padding[488];
+ TW_Command_Full firmware_command;
+ char data_buffer[1];
+} TW_Ioctl_Buf_Apache;
+
+/* GetParam descriptor */
+typedef struct {
+ unsigned short table_id;
+ unsigned short parameter_id;
+ unsigned short parameter_size_bytes;
+ unsigned short actual_parameter_size_bytes;
+ unsigned char data[1];
+} TW_Param_Apache;
+
+/* Compatibility information structure */
+typedef struct TAG_TW_Compatibility_Info
+{
+ char driver_version[32];
+ unsigned short working_srl;
+ unsigned short working_branch;
+ unsigned short working_build;
+ unsigned short driver_srl_high;
+ unsigned short driver_branch_high;
+ unsigned short driver_build_high;
+ unsigned short driver_srl_low;
+ unsigned short driver_branch_low;
+ unsigned short driver_build_low;
+ unsigned short fw_on_ctlr_srl;
+ unsigned short fw_on_ctlr_branch;
+ unsigned short fw_on_ctlr_build;
+} TW_Compatibility_Info;
+
+#pragma pack()
+
+typedef struct TAG_TW_Device_Extension {
+ void __iomem *base_addr;
+ unsigned long *generic_buffer_virt[TW_Q_LENGTH];
+ dma_addr_t generic_buffer_phys[TW_Q_LENGTH];
+ TW_Command_Full *command_packet_virt[TW_Q_LENGTH];
+ dma_addr_t command_packet_phys[TW_Q_LENGTH];
+ TW_Command_Apache_Header *sense_buffer_virt[TW_Q_LENGTH];
+ dma_addr_t sense_buffer_phys[TW_Q_LENGTH];
+ struct pci_dev *tw_pci_dev;
+ struct scsi_cmnd *srb[TW_Q_LENGTH];
+ unsigned char free_queue[TW_Q_LENGTH];
+ unsigned char free_head;
+ unsigned char free_tail;
+ int state[TW_Q_LENGTH];
+ unsigned int posted_request_count;
+ unsigned int max_posted_request_count;
+ unsigned int max_sgl_entries;
+ unsigned int sgl_entries;
+ unsigned int num_resets;
+ unsigned int sector_count;
+ unsigned int max_sector_count;
+ unsigned int aen_count;
+ struct Scsi_Host *host;
+ long flags;
+ TW_Event *event_queue[TW_Q_LENGTH];
+ unsigned char error_index;
+ unsigned int error_sequence_id;
+ int chrdev_request_id;
+ wait_queue_head_t ioctl_wqueue;
+ struct mutex ioctl_lock;
+ TW_Compatibility_Info tw_compat_info;
+ char online;
+} TW_Device_Extension;
+
+#endif /* _3W_SAS_H */
+
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index faa0fcfed71e..d224294c38fb 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -521,8 +521,12 @@ static ssize_t tw_show_stats(struct device *dev, struct device_attribute *attr,
} /* End tw_show_stats() */
/* This function will set a devices queue depth */
-static int tw_change_queue_depth(struct scsi_device *sdev, int queue_depth)
+static int tw_change_queue_depth(struct scsi_device *sdev, int queue_depth,
+ int reason)
{
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
if (queue_depth > TW_Q_LENGTH-2)
queue_depth = TW_Q_LENGTH-2;
scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index f5a9addb7050..6c60a8060c58 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -175,7 +175,7 @@ STATIC void NCR_700_chip_reset(struct Scsi_Host *host);
STATIC int NCR_700_slave_alloc(struct scsi_device *SDpnt);
STATIC int NCR_700_slave_configure(struct scsi_device *SDpnt);
STATIC void NCR_700_slave_destroy(struct scsi_device *SDpnt);
-static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth);
+static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth, int reason);
static int NCR_700_change_queue_type(struct scsi_device *SDpnt, int depth);
STATIC struct device_attribute *NCR_700_dev_attrs[];
@@ -2082,8 +2082,11 @@ NCR_700_slave_destroy(struct scsi_device *SDp)
}
static int
-NCR_700_change_queue_depth(struct scsi_device *SDp, int depth)
+NCR_700_change_queue_depth(struct scsi_device *SDp, int depth, int reason)
{
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
if (depth > NCR_700_MAX_TAGS)
depth = NCR_700_MAX_TAGS;
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index e11cca4c784c..36900c71a592 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -399,6 +399,17 @@ config SCSI_3W_9XXX
Please read the comments at the top of
<file:drivers/scsi/3w-9xxx.c>.
+config SCSI_3W_SAS
+ tristate "3ware 97xx SAS/SATA-RAID support"
+ depends on PCI && SCSI
+ help
+ This driver supports the LSI 3ware 9750 6Gb/s SAS/SATA-RAID cards.
+
+ <http://www.lsi.com>
+
+ Please read the comments at the top of
+ <file:drivers/scsi/3w-sas.c>.
+
config SCSI_7000FASST
tristate "7000FASST SCSI support"
depends on ISA && SCSI && ISA_DMA_API
@@ -621,6 +632,14 @@ config SCSI_FLASHPOINT
substantial, so users of MultiMaster Host Adapters may not
wish to include it.
+config VMWARE_PVSCSI
+ tristate "VMware PVSCSI driver support"
+ depends on PCI && SCSI && X86
+ help
+ This driver supports VMware's para virtualized SCSI HBA.
+ To compile this driver as a module, choose M here: the
+ module will be called vmw_pvscsi.
+
config LIBFC
tristate "LibFC module"
select SCSI_FC_ATTRS
@@ -644,7 +663,7 @@ config FCOE
config FCOE_FNIC
tristate "Cisco FNIC Driver"
depends on PCI && X86
- select LIBFC
+ select LIBFCOE
help
This is support for the Cisco PCI-Express FCoE HBA.
@@ -1818,6 +1837,14 @@ config SCSI_PMCRAID
---help---
This driver supports the PMC SIERRA MaxRAID adapters.
+config SCSI_PM8001
+ tristate "PMC-Sierra SPC 8001 SAS/SATA Based Host Adapter driver"
+ depends on PCI && SCSI
+ select SCSI_SAS_LIBSAS
+ help
+ This driver supports PMC-Sierra PCIE SAS/SATA 8x6G SPC 8001 chip
+ based host adapters.
+
config SCSI_SRP
tristate "SCSI RDMA Protocol helper library"
depends on SCSI && PCI
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 3ad61db5e3fa..280d3c657d60 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -70,6 +70,7 @@ obj-$(CONFIG_SCSI_AIC79XX) += aic7xxx/
obj-$(CONFIG_SCSI_AACRAID) += aacraid/
obj-$(CONFIG_SCSI_AIC7XXX_OLD) += aic7xxx_old.o
obj-$(CONFIG_SCSI_AIC94XX) += aic94xx/
+obj-$(CONFIG_SCSI_PM8001) += pm8001/
obj-$(CONFIG_SCSI_IPS) += ips.o
obj-$(CONFIG_SCSI_FD_MCS) += fd_mcs.o
obj-$(CONFIG_SCSI_FUTURE_DOMAIN)+= fdomain.o
@@ -113,6 +114,7 @@ obj-$(CONFIG_SCSI_MESH) += mesh.o
obj-$(CONFIG_SCSI_MAC53C94) += mac53c94.o
obj-$(CONFIG_BLK_DEV_3W_XXXX_RAID) += 3w-xxxx.o
obj-$(CONFIG_SCSI_3W_9XXX) += 3w-9xxx.o
+obj-$(CONFIG_SCSI_3W_SAS) += 3w-sas.o
obj-$(CONFIG_SCSI_PPA) += ppa.o
obj-$(CONFIG_SCSI_IMM) += imm.o
obj-$(CONFIG_JAZZ_ESP) += esp_scsi.o jazz_esp.o
@@ -133,6 +135,7 @@ obj-$(CONFIG_SCSI_CXGB3_ISCSI) += libiscsi.o libiscsi_tcp.o cxgb3i/
obj-$(CONFIG_SCSI_BNX2_ISCSI) += libiscsi.o bnx2i/
obj-$(CONFIG_BE2ISCSI) += libiscsi.o be2iscsi/
obj-$(CONFIG_SCSI_PMCRAID) += pmcraid.o
+obj-$(CONFIG_VMWARE_PVSCSI) += vmw_pvscsi.o
obj-$(CONFIG_ARM) += arm/
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 9b97c3e016fe..e9373a2d14fa 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -472,8 +472,12 @@ static int aac_slave_configure(struct scsi_device *sdev)
* total capacity and the queue depth supported by the target device.
*/
-static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
+static int aac_change_queue_depth(struct scsi_device *sdev, int depth,
+ int reason)
{
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
(sdev_channel(sdev) == CONTAINER_CHANNEL)) {
struct scsi_device * dev;
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 80aac01b5a6f..47d5d19f8c92 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -98,8 +98,11 @@ static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb);
static const char *arcmsr_info(struct Scsi_Host *);
static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev,
- int queue_depth)
+ int queue_depth, int reason)
{
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
queue_depth = ARCMSR_MAX_CMD_PERLUN;
scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
diff --git a/drivers/scsi/be2iscsi/be.h b/drivers/scsi/be2iscsi/be.h
index b36020dcf012..a93a5040f087 100644
--- a/drivers/scsi/be2iscsi/be.h
+++ b/drivers/scsi/be2iscsi/be.h
@@ -20,8 +20,10 @@
#include <linux/pci.h>
#include <linux/if_vlan.h>
-
-#define FW_VER_LEN 32
+#include <linux/blk-iopoll.h>
+#define FW_VER_LEN 32
+#define MCC_Q_LEN 128
+#define MCC_CQ_LEN 256
struct be_dma_mem {
void *va;
@@ -74,18 +76,14 @@ static inline void queue_tail_inc(struct be_queue_info *q)
struct be_eq_obj {
struct be_queue_info q;
- char desc[32];
-
- /* Adaptive interrupt coalescing (AIC) info */
- bool enable_aic;
- u16 min_eqd; /* in usecs */
- u16 max_eqd; /* in usecs */
- u16 cur_eqd; /* in usecs */
+ struct beiscsi_hba *phba;
+ struct be_queue_info *cq;
+ struct blk_iopoll iopoll;
};
struct be_mcc_obj {
- struct be_queue_info *q;
- struct be_queue_info *cq;
+ struct be_queue_info q;
+ struct be_queue_info cq;
};
struct be_ctrl_info {
@@ -176,8 +174,4 @@ static inline void swap_dws(void *wrb, int len)
} while (len);
#endif /* __BIG_ENDIAN */
}
-
-extern void beiscsi_cq_notify(struct be_ctrl_info *ctrl, u16 qid, bool arm,
- u16 num_popped);
-
#endif /* BEISCSI_H */
diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index 08007b6e42df..698a527d6cca 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -19,6 +19,16 @@
#include "be_mgmt.h"
#include "be_main.h"
+static void be_mcc_notify(struct beiscsi_hba *phba)
+{
+ struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
+ u32 val = 0;
+
+ val |= mccq->id & DB_MCCQ_RING_ID_MASK;
+ val |= 1 << DB_MCCQ_NUM_POSTED_SHIFT;
+ iowrite32(val, phba->db_va + DB_MCCQ_OFFSET);
+}
+
static inline bool be_mcc_compl_is_new(struct be_mcc_compl *compl)
{
if (compl->flags != 0) {
@@ -54,13 +64,56 @@ static int be_mcc_compl_process(struct be_ctrl_info *ctrl,
return 0;
}
+
static inline bool is_link_state_evt(u32 trailer)
{
return (((trailer >> ASYNC_TRAILER_EVENT_CODE_SHIFT) &
- ASYNC_TRAILER_EVENT_CODE_MASK) == ASYNC_EVENT_CODE_LINK_STATE);
+ ASYNC_TRAILER_EVENT_CODE_MASK) ==
+ ASYNC_EVENT_CODE_LINK_STATE);
+}
+
+static struct be_mcc_compl *be_mcc_compl_get(struct beiscsi_hba *phba)
+{
+ struct be_queue_info *mcc_cq = &phba->ctrl.mcc_obj.cq;
+ struct be_mcc_compl *compl = queue_tail_node(mcc_cq);
+
+ if (be_mcc_compl_is_new(compl)) {
+ queue_tail_inc(mcc_cq);
+ return compl;
+ }
+ return NULL;
+}
+
+static void be2iscsi_fail_session(struct iscsi_cls_session *cls_session)
+{
+ iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED);
+}
+
+static void beiscsi_async_link_state_process(struct beiscsi_hba *phba,
+ struct be_async_event_link_state *evt)
+{
+ switch (evt->port_link_status) {
+ case ASYNC_EVENT_LINK_DOWN:
+ SE_DEBUG(DBG_LVL_1, "Link Down on Physical Port %d \n",
+ evt->physical_port);
+ phba->state |= BE_ADAPTER_LINK_DOWN;
+ break;
+ case ASYNC_EVENT_LINK_UP:
+ phba->state = BE_ADAPTER_UP;
+ SE_DEBUG(DBG_LVL_1, "Link UP on Physical Port %d \n",
+ evt->physical_port);
+ iscsi_host_for_each_session(phba->shost,
+ be2iscsi_fail_session);
+ break;
+ default:
+ SE_DEBUG(DBG_LVL_1, "Unexpected Async Notification %d on"
+ "Physical Port %d \n",
+ evt->port_link_status,
+ evt->physical_port);
+ }
}
-void beiscsi_cq_notify(struct be_ctrl_info *ctrl, u16 qid, bool arm,
+static void beiscsi_cq_notify(struct beiscsi_hba *phba, u16 qid, bool arm,
u16 num_popped)
{
u32 val = 0;
@@ -68,7 +121,66 @@ void beiscsi_cq_notify(struct be_ctrl_info *ctrl, u16 qid, bool arm,
if (arm)
val |= 1 << DB_CQ_REARM_SHIFT;
val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
- iowrite32(val, ctrl->db + DB_CQ_OFFSET);
+ iowrite32(val, phba->db_va + DB_CQ_OFFSET);
+}
+
+
+int beiscsi_process_mcc(struct beiscsi_hba *phba)
+{
+ struct be_mcc_compl *compl;
+ int num = 0, status = 0;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+
+ spin_lock_bh(&phba->ctrl.mcc_cq_lock);
+ while ((compl = be_mcc_compl_get(phba))) {
+ if (compl->flags & CQE_FLAGS_ASYNC_MASK) {
+ /* Interpret flags as an async trailer */
+ BUG_ON(!is_link_state_evt(compl->flags));
+
+ /* Interpret compl as a async link evt */
+ beiscsi_async_link_state_process(phba,
+ (struct be_async_event_link_state *) compl);
+ } else if (compl->flags & CQE_FLAGS_COMPLETED_MASK) {
+ status = be_mcc_compl_process(ctrl, compl);
+ atomic_dec(&phba->ctrl.mcc_obj.q.used);
+ }
+ be_mcc_compl_use(compl);
+ num++;
+ }
+
+ if (num)
+ beiscsi_cq_notify(phba, phba->ctrl.mcc_obj.cq.id, true, num);
+
+ spin_unlock_bh(&phba->ctrl.mcc_cq_lock);
+ return status;
+}
+
+/* Wait till no more pending mcc requests are present */
+static int be_mcc_wait_compl(struct beiscsi_hba *phba)
+{
+#define mcc_timeout 120000 /* 5s timeout */
+ int i, status;
+ for (i = 0; i < mcc_timeout; i++) {
+ status = beiscsi_process_mcc(phba);
+ if (status)
+ return status;
+
+ if (atomic_read(&phba->ctrl.mcc_obj.q.used) == 0)
+ break;
+ udelay(100);
+ }
+ if (i == mcc_timeout) {
+ dev_err(&phba->pcidev->dev, "mccq poll timed out\n");
+ return -1;
+ }
+ return 0;
+}
+
+/* Notify MCC requests and wait for completion */
+int be_mcc_notify_wait(struct beiscsi_hba *phba)
+{
+ be_mcc_notify(phba);
+ return be_mcc_wait_compl(phba);
}
static int be_mbox_db_ready_wait(struct be_ctrl_info *ctrl)
@@ -142,6 +254,52 @@ int be_mbox_notify(struct be_ctrl_info *ctrl)
return 0;
}
+/*
+ * Insert the mailbox address into the doorbell in two steps
+ * Polls on the mbox doorbell till a command completion (or a timeout) occurs
+ */
+static int be_mbox_notify_wait(struct beiscsi_hba *phba)
+{
+ int status;
+ u32 val = 0;
+ void __iomem *db = phba->ctrl.db + MPU_MAILBOX_DB_OFFSET;
+ struct be_dma_mem *mbox_mem = &phba->ctrl.mbox_mem;
+ struct be_mcc_mailbox *mbox = mbox_mem->va;
+ struct be_mcc_compl *compl = &mbox->compl;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+
+ val |= MPU_MAILBOX_DB_HI_MASK;
+ /* at bits 2 - 31 place mbox dma addr msb bits 34 - 63 */
+ val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2;
+ iowrite32(val, db);
+
+ /* wait for ready to be set */
+ status = be_mbox_db_ready_wait(ctrl);
+ if (status != 0)
+ return status;
+
+ val = 0;
+ /* at bits 2 - 31 place mbox dma addr lsb bits 4 - 33 */
+ val |= (u32)(mbox_mem->dma >> 4) << 2;
+ iowrite32(val, db);
+
+ status = be_mbox_db_ready_wait(ctrl);
+ if (status != 0)
+ return status;
+
+ /* A cq entry has been made now */
+ if (be_mcc_compl_is_new(compl)) {
+ status = be_mcc_compl_process(ctrl, &mbox->compl);
+ be_mcc_compl_use(compl);
+ if (status)
+ return status;
+ } else {
+ dev_err(&phba->pcidev->dev, "invalid mailbox completion\n");
+ return -1;
+ }
+ return 0;
+}
+
void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len,
bool embedded, u8 sge_cnt)
{
@@ -203,6 +361,20 @@ struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem)
return &((struct be_mcc_mailbox *)(mbox_mem->va))->wrb;
}
+struct be_mcc_wrb *wrb_from_mccq(struct beiscsi_hba *phba)
+{
+ struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
+ struct be_mcc_wrb *wrb;
+
+ BUG_ON(atomic_read(&mccq->used) >= mccq->len);
+ wrb = queue_head_node(mccq);
+ queue_head_inc(mccq);
+ atomic_inc(&mccq->used);
+ memset(wrb, 0, sizeof(*wrb));
+ return wrb;
+}
+
+
int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
struct be_queue_info *eq, int eq_delay)
{
@@ -212,6 +384,7 @@ int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
struct be_dma_mem *q_mem = &eq->dma_mem;
int status;
+ SE_DEBUG(DBG_LVL_8, "In beiscsi_cmd_eq_create\n");
spin_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
@@ -249,6 +422,7 @@ int be_cmd_fw_initialize(struct be_ctrl_info *ctrl)
int status;
u8 *endian_check;
+ SE_DEBUG(DBG_LVL_8, "In be_cmd_fw_initialize\n");
spin_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
@@ -282,6 +456,7 @@ int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
void *ctxt = &req->context;
int status;
+ SE_DEBUG(DBG_LVL_8, "In beiscsi_cmd_cq_create \n");
spin_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
@@ -289,7 +464,6 @@ int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
OPCODE_COMMON_CQ_CREATE, sizeof(*req));
-
if (!q_mem->va)
SE_DEBUG(DBG_LVL_1, "uninitialized q_mem->va\n");
@@ -329,6 +503,53 @@ static u32 be_encoded_q_len(int q_len)
len_encoded = 0;
return len_encoded;
}
+
+int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba,
+ struct be_queue_info *mccq,
+ struct be_queue_info *cq)
+{
+ struct be_mcc_wrb *wrb;
+ struct be_cmd_req_mcc_create *req;
+ struct be_dma_mem *q_mem = &mccq->dma_mem;
+ struct be_ctrl_info *ctrl;
+ void *ctxt;
+ int status;
+
+ spin_lock(&phba->ctrl.mbox_lock);
+ ctrl = &phba->ctrl;
+ wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ req = embedded_payload(wrb);
+ ctxt = &req->context;
+
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+ OPCODE_COMMON_MCC_CREATE, sizeof(*req));
+
+ req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+
+ AMAP_SET_BITS(struct amap_mcc_context, fid, ctxt,
+ PCI_FUNC(phba->pcidev->devfn));
+ AMAP_SET_BITS(struct amap_mcc_context, valid, ctxt, 1);
+ AMAP_SET_BITS(struct amap_mcc_context, ring_size, ctxt,
+ be_encoded_q_len(mccq->len));
+ AMAP_SET_BITS(struct amap_mcc_context, cq_id, ctxt, cq->id);
+
+ be_dws_cpu_to_le(ctxt, sizeof(req->context));
+
+ be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+ status = be_mbox_notify_wait(phba);
+ if (!status) {
+ struct be_cmd_resp_mcc_create *resp = embedded_payload(wrb);
+ mccq->id = le16_to_cpu(resp->id);
+ mccq->created = true;
+ }
+ spin_unlock(&phba->ctrl.mbox_lock);
+
+ return status;
+}
+
int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
int queue_type)
{
@@ -337,6 +558,7 @@ int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
u8 subsys = 0, opcode = 0;
int status;
+ SE_DEBUG(DBG_LVL_8, "In beiscsi_cmd_q_destroy \n");
spin_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@@ -350,6 +572,10 @@ int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
subsys = CMD_SUBSYSTEM_COMMON;
opcode = OPCODE_COMMON_CQ_DESTROY;
break;
+ case QTYPE_MCCQ:
+ subsys = CMD_SUBSYSTEM_COMMON;
+ opcode = OPCODE_COMMON_MCC_DESTROY;
+ break;
case QTYPE_WRBQ:
subsys = CMD_SUBSYSTEM_ISCSI;
opcode = OPCODE_COMMON_ISCSI_WRBQ_DESTROY;
@@ -377,30 +603,6 @@ int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
return status;
}
-int be_cmd_get_mac_addr(struct be_ctrl_info *ctrl, u8 *mac_addr)
-{
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
- struct be_cmd_req_get_mac_addr *req = embedded_payload(wrb);
- int status;
-
- spin_lock(&ctrl->mbox_lock);
- memset(wrb, 0, sizeof(*wrb));
- be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
- be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
- OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
- sizeof(*req));
-
- status = be_mbox_notify(ctrl);
- if (!status) {
- struct be_cmd_resp_get_mac_addr *resp = embedded_payload(wrb);
-
- memcpy(mac_addr, resp->mac_address, ETH_ALEN);
- }
-
- spin_unlock(&ctrl->mbox_lock);
- return status;
-}
-
int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
struct be_queue_info *cq,
struct be_queue_info *dq, int length,
@@ -412,6 +614,7 @@ int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
void *ctxt = &req->context;
int status;
+ SE_DEBUG(DBG_LVL_8, "In be_cmd_create_default_pdu_queue\n");
spin_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
@@ -468,8 +671,10 @@ int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
status = be_mbox_notify(ctrl);
- if (!status)
+ if (!status) {
wrbq->id = le16_to_cpu(resp->cid);
+ wrbq->created = true;
+ }
spin_unlock(&ctrl->mbox_lock);
return status;
}
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
index c20d686cbb43..5de8acb924cb 100644
--- a/drivers/scsi/be2iscsi/be_cmds.h
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -47,6 +47,8 @@ struct be_mcc_wrb {
#define CQE_FLAGS_VALID_MASK (1 << 31)
#define CQE_FLAGS_ASYNC_MASK (1 << 30)
+#define CQE_FLAGS_COMPLETED_MASK (1 << 28)
+#define CQE_FLAGS_CONSUMED_MASK (1 << 27)
/* Completion Status */
#define MCC_STATUS_SUCCESS 0x0
@@ -173,7 +175,7 @@ struct be_cmd_req_hdr {
u8 domain; /* dword 0 */
u32 timeout; /* dword 1 */
u32 request_length; /* dword 2 */
- u32 rsvd; /* dword 3 */
+ u32 rsvd0; /* dword 3 */
};
struct be_cmd_resp_hdr {
@@ -382,7 +384,6 @@ struct be_cmd_req_modify_eq_delay {
#define ETH_ALEN 6
-
struct be_cmd_req_get_mac_addr {
struct be_cmd_req_hdr hdr;
u32 nic_port_count;
@@ -417,14 +418,21 @@ int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
int type);
+int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba,
+ struct be_queue_info *mccq,
+ struct be_queue_info *cq);
+
int be_poll_mcc(struct be_ctrl_info *ctrl);
-unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl);
-int be_cmd_get_mac_addr(struct be_ctrl_info *ctrl, u8 *mac_addr);
+unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba);
+int be_cmd_get_mac_addr(struct beiscsi_hba *phba, u8 *mac_addr);
/*ISCSI Functuions */
int be_cmd_fw_initialize(struct be_ctrl_info *ctrl);
struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);
+struct be_mcc_wrb *wrb_from_mccq(struct beiscsi_hba *phba);
+int be_mcc_notify_wait(struct beiscsi_hba *phba);
int be_mbox_notify(struct be_ctrl_info *ctrl);
@@ -531,6 +539,23 @@ struct amap_sol_cqe {
u8 valid; /* dword 3 */
} __packed;
+#define SOL_ICD_INDEX_MASK 0x0003FFC0
+struct amap_sol_cqe_ring {
+ u8 hw_sts[8]; /* dword 0 */
+ u8 i_sts[8]; /* dword 0 */
+ u8 i_resp[8]; /* dword 0 */
+ u8 i_flags[7]; /* dword 0 */
+ u8 s; /* dword 0 */
+ u8 i_exp_cmd_sn[32]; /* dword 1 */
+ u8 code[6]; /* dword 2 */
+ u8 icd_index[12]; /* dword 2 */
+ u8 rsvd[6]; /* dword 2 */
+ u8 i_cmd_wnd[8]; /* dword 2 */
+ u8 i_res_cnt[31]; /* dword 3 */
+ u8 valid; /* dword 3 */
+} __packed;
+
+
/**
* Post WRB Queue Doorbell Register used by the host Storage
@@ -664,8 +689,8 @@ struct be_fw_cfg {
#define OPCODE_COMMON_TCP_UPLOAD 56
#define OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS 1
/* --- CMD_ISCSI_INVALIDATE_CONNECTION_TYPE --- */
-#define CMD_ISCSI_CONNECTION_INVALIDATE 1
-#define CMD_ISCSI_CONNECTION_ISSUE_TCP_RST 2
+#define CMD_ISCSI_CONNECTION_INVALIDATE 0x8001
+#define CMD_ISCSI_CONNECTION_ISSUE_TCP_RST 0x8002
#define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42
#define INI_WR_CMD 1 /* Initiator write command */
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index 2fd25442cfaf..d587b0362f18 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -67,11 +67,11 @@ struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn;
}
- cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
- shost, cmds_max,
- sizeof(*beiscsi_sess),
- sizeof(*io_task),
- initial_cmdsn, ISCSI_MAX_TARGET);
+ cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
+ shost, cmds_max,
+ sizeof(*beiscsi_sess),
+ sizeof(*io_task),
+ initial_cmdsn, ISCSI_MAX_TARGET);
if (!cls_session)
return NULL;
sess = cls_session->dd_data;
@@ -297,7 +297,7 @@ int beiscsi_get_host_param(struct Scsi_Host *shost,
switch (param) {
case ISCSI_HOST_PARAM_HWADDRESS:
- be_cmd_get_mac_addr(&phba->ctrl, phba->mac_address);
+ be_cmd_get_mac_addr(phba, phba->mac_address);
len = sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
break;
default:
@@ -377,16 +377,12 @@ int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
struct beiscsi_conn *beiscsi_conn = conn->dd_data;
struct beiscsi_endpoint *beiscsi_ep;
struct beiscsi_offload_params params;
- struct iscsi_session *session = conn->session;
- struct Scsi_Host *shost = iscsi_session_to_shost(session->cls_session);
- struct beiscsi_hba *phba = iscsi_host_priv(shost);
memset(&params, 0, sizeof(struct beiscsi_offload_params));
beiscsi_ep = beiscsi_conn->ep;
if (!beiscsi_ep)
SE_DEBUG(DBG_LVL_1, "In beiscsi_conn_start , no beiscsi_ep\n");
- free_mgmt_sgl_handle(phba, beiscsi_conn->plogin_sgl_handle);
beiscsi_conn->login_in_progress = 0;
beiscsi_set_params_for_offld(beiscsi_conn, &params);
beiscsi_offload_connection(beiscsi_conn, &params);
@@ -498,6 +494,13 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
SE_DEBUG(DBG_LVL_1, "shost is NULL \n");
return ERR_PTR(ret);
}
+
+ if (phba->state) {
+ ret = -EBUSY;
+ SE_DEBUG(DBG_LVL_1, "The Adapet state is Not UP \n");
+ return ERR_PTR(ret);
+ }
+
ep = iscsi_create_endpoint(sizeof(struct beiscsi_endpoint));
if (!ep) {
ret = -ENOMEM;
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 4f1aca346e38..1a557fa77888 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -39,7 +39,8 @@
static unsigned int be_iopoll_budget = 10;
static unsigned int be_max_phys_size = 64;
-static unsigned int enable_msix;
+static unsigned int enable_msix = 1;
+static unsigned int ring_mode;
MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR);
@@ -58,6 +59,17 @@ static int beiscsi_slave_configure(struct scsi_device *sdev)
return 0;
}
+/*------------------- PCI Driver operations and data ----------------- */
+static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = {
+ { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
+ { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
+ { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
+ { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) },
+ { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID4) },
+ { 0 }
+};
+MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
+
static struct scsi_host_template beiscsi_sht = {
.module = THIS_MODULE,
.name = "ServerEngines 10Gbe open-iscsi Initiator Driver",
@@ -76,16 +88,8 @@ static struct scsi_host_template beiscsi_sht = {
.cmd_per_lun = BEISCSI_CMD_PER_LUN,
.use_clustering = ENABLE_CLUSTERING,
};
-static struct scsi_transport_template *beiscsi_scsi_transport;
-/*------------------- PCI Driver operations and data ----------------- */
-static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = {
- { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
- { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
- { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
- { 0 }
-};
-MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
+static struct scsi_transport_template *beiscsi_scsi_transport;
static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev)
{
@@ -104,7 +108,6 @@ static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev)
shost->max_cmd_len = BEISCSI_MAX_CMD_LEN;
shost->max_lun = BEISCSI_NUM_MAX_LUN;
shost->transportt = beiscsi_scsi_transport;
-
phba = iscsi_host_priv(shost);
memset(phba, 0, sizeof(*phba));
phba->shost = shost;
@@ -181,6 +184,7 @@ static int beiscsi_enable_pci(struct pci_dev *pcidev)
return ret;
}
+ pci_set_master(pcidev);
if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) {
ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
if (ret) {
@@ -203,7 +207,6 @@ static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
status = beiscsi_map_pci_bars(phba, pdev);
if (status)
return status;
-
mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
mbox_mem_alloc->va = pci_alloc_consistent(pdev,
mbox_mem_alloc->size,
@@ -219,6 +222,9 @@ static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
spin_lock_init(&ctrl->mbox_lock);
+ spin_lock_init(&phba->ctrl.mcc_lock);
+ spin_lock_init(&phba->ctrl.mcc_cq_lock);
+
return status;
}
@@ -268,6 +274,113 @@ static void hwi_ring_eq_db(struct beiscsi_hba *phba,
}
/**
+ * be_isr_mcc - The isr routine of the driver.
+ * @irq: Not used
+ * @dev_id: Pointer to host adapter structure
+ */
+static irqreturn_t be_isr_mcc(int irq, void *dev_id)
+{
+ struct beiscsi_hba *phba;
+ struct be_eq_entry *eqe = NULL;
+ struct be_queue_info *eq;
+ struct be_queue_info *mcc;
+ unsigned int num_eq_processed;
+ struct be_eq_obj *pbe_eq;
+ unsigned long flags;
+
+ pbe_eq = dev_id;
+ eq = &pbe_eq->q;
+ phba = pbe_eq->phba;
+ mcc = &phba->ctrl.mcc_obj.cq;
+ eqe = queue_tail_node(eq);
+ if (!eqe)
+ SE_DEBUG(DBG_LVL_1, "eqe is NULL\n");
+
+ num_eq_processed = 0;
+
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+ & EQE_VALID_MASK) {
+ if (((eqe->dw[offsetof(struct amap_eq_entry,
+ resource_id) / 32] &
+ EQE_RESID_MASK) >> 16) == mcc->id) {
+ spin_lock_irqsave(&phba->isr_lock, flags);
+ phba->todo_mcc_cq = 1;
+ spin_unlock_irqrestore(&phba->isr_lock, flags);
+ }
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+ queue_tail_inc(eq);
+ eqe = queue_tail_node(eq);
+ num_eq_processed++;
+ }
+ if (phba->todo_mcc_cq)
+ queue_work(phba->wq, &phba->work_cqs);
+ if (num_eq_processed)
+ hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1);
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * be_isr_msix - The isr routine of the driver.
+ * @irq: Not used
+ * @dev_id: Pointer to host adapter structure
+ */
+static irqreturn_t be_isr_msix(int irq, void *dev_id)
+{
+ struct beiscsi_hba *phba;
+ struct be_eq_entry *eqe = NULL;
+ struct be_queue_info *eq;
+ struct be_queue_info *cq;
+ unsigned int num_eq_processed;
+ struct be_eq_obj *pbe_eq;
+ unsigned long flags;
+
+ pbe_eq = dev_id;
+ eq = &pbe_eq->q;
+ cq = pbe_eq->cq;
+ eqe = queue_tail_node(eq);
+ if (!eqe)
+ SE_DEBUG(DBG_LVL_1, "eqe is NULL\n");
+
+ phba = pbe_eq->phba;
+ num_eq_processed = 0;
+ if (blk_iopoll_enabled) {
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+ & EQE_VALID_MASK) {
+ if (!blk_iopoll_sched_prep(&pbe_eq->iopoll))
+ blk_iopoll_sched(&pbe_eq->iopoll);
+
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+ queue_tail_inc(eq);
+ eqe = queue_tail_node(eq);
+ num_eq_processed++;
+ }
+ if (num_eq_processed)
+ hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 0, 1);
+
+ return IRQ_HANDLED;
+ } else {
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+ & EQE_VALID_MASK) {
+ spin_lock_irqsave(&phba->isr_lock, flags);
+ phba->todo_cq = 1;
+ spin_unlock_irqrestore(&phba->isr_lock, flags);
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+ queue_tail_inc(eq);
+ eqe = queue_tail_node(eq);
+ num_eq_processed++;
+ }
+ if (phba->todo_cq)
+ queue_work(phba->wq, &phba->work_cqs);
+
+ if (num_eq_processed)
+ hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1);
+
+ return IRQ_HANDLED;
+ }
+}
+
+/**
* be_isr - The isr routine of the driver.
* @irq: Not used
* @dev_id: Pointer to host adapter structure
@@ -280,48 +393,70 @@ static irqreturn_t be_isr(int irq, void *dev_id)
struct be_eq_entry *eqe = NULL;
struct be_queue_info *eq;
struct be_queue_info *cq;
+ struct be_queue_info *mcc;
unsigned long flags, index;
- unsigned int num_eq_processed;
+ unsigned int num_mcceq_processed, num_ioeq_processed;
struct be_ctrl_info *ctrl;
+ struct be_eq_obj *pbe_eq;
int isr;
phba = dev_id;
- if (!enable_msix) {
- ctrl = &phba->ctrl;;
- isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET +
- (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE));
- if (!isr)
- return IRQ_NONE;
- }
+ ctrl = &phba->ctrl;;
+ isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET +
+ (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE));
+ if (!isr)
+ return IRQ_NONE;
phwi_ctrlr = phba->phwi_ctrlr;
phwi_context = phwi_ctrlr->phwi_ctxt;
- eq = &phwi_context->be_eq.q;
- cq = &phwi_context->be_cq;
+ pbe_eq = &phwi_context->be_eq[0];
+
+ eq = &phwi_context->be_eq[0].q;
+ mcc = &phba->ctrl.mcc_obj.cq;
index = 0;
eqe = queue_tail_node(eq);
if (!eqe)
SE_DEBUG(DBG_LVL_1, "eqe is NULL\n");
- num_eq_processed = 0;
+ num_ioeq_processed = 0;
+ num_mcceq_processed = 0;
if (blk_iopoll_enabled) {
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
& EQE_VALID_MASK) {
- if (!blk_iopoll_sched_prep(&phba->iopoll))
- blk_iopoll_sched(&phba->iopoll);
-
+ if (((eqe->dw[offsetof(struct amap_eq_entry,
+ resource_id) / 32] &
+ EQE_RESID_MASK) >> 16) == mcc->id) {
+ spin_lock_irqsave(&phba->isr_lock, flags);
+ phba->todo_mcc_cq = 1;
+ spin_unlock_irqrestore(&phba->isr_lock, flags);
+ num_mcceq_processed++;
+ } else {
+ if (!blk_iopoll_sched_prep(&pbe_eq->iopoll))
+ blk_iopoll_sched(&pbe_eq->iopoll);
+ num_ioeq_processed++;
+ }
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
- num_eq_processed++;
- SE_DEBUG(DBG_LVL_8, "Valid EQE\n");
}
- if (num_eq_processed) {
- hwi_ring_eq_db(phba, eq->id, 0, num_eq_processed, 0, 1);
+ if (num_ioeq_processed || num_mcceq_processed) {
+ if (phba->todo_mcc_cq)
+ queue_work(phba->wq, &phba->work_cqs);
+
+ if ((num_mcceq_processed) && (!num_ioeq_processed))
+ hwi_ring_eq_db(phba, eq->id, 0,
+ (num_ioeq_processed +
+ num_mcceq_processed) , 1, 1);
+ else
+ hwi_ring_eq_db(phba, eq->id, 0,
+ (num_ioeq_processed +
+ num_mcceq_processed), 0, 1);
+
return IRQ_HANDLED;
} else
return IRQ_NONE;
} else {
+ cq = &phwi_context->be_cq[0];
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
& EQE_VALID_MASK) {
@@ -339,13 +474,14 @@ static irqreturn_t be_isr(int irq, void *dev_id)
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
- num_eq_processed++;
+ num_ioeq_processed++;
}
if (phba->todo_cq || phba->todo_mcc_cq)
queue_work(phba->wq, &phba->work_cqs);
- if (num_eq_processed) {
- hwi_ring_eq_db(phba, eq->id, 0, num_eq_processed, 1, 1);
+ if (num_ioeq_processed) {
+ hwi_ring_eq_db(phba, eq->id, 0,
+ num_ioeq_processed, 1, 1);
return IRQ_HANDLED;
} else
return IRQ_NONE;
@@ -355,13 +491,32 @@ static irqreturn_t be_isr(int irq, void *dev_id)
static int beiscsi_init_irqs(struct beiscsi_hba *phba)
{
struct pci_dev *pcidev = phba->pcidev;
- int ret;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ int ret, msix_vec, i = 0;
+ char desc[32];
- ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, "beiscsi", phba);
- if (ret) {
- shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-"
- "Failed to register irq\\n");
- return ret;
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+
+ if (phba->msix_enabled) {
+ for (i = 0; i < phba->num_cpus; i++) {
+ sprintf(desc, "beiscsi_msix_%04x", i);
+ msix_vec = phba->msix_entries[i].vector;
+ ret = request_irq(msix_vec, be_isr_msix, 0, desc,
+ &phwi_context->be_eq[i]);
+ }
+ msix_vec = phba->msix_entries[i].vector;
+ ret = request_irq(msix_vec, be_isr_mcc, 0, "beiscsi_msix_mcc",
+ &phwi_context->be_eq[i]);
+ } else {
+ ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED,
+ "beiscsi", phba);
+ if (ret) {
+ shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-"
+ "Failed to register irq\\n");
+ return ret;
+ }
}
return 0;
}
@@ -378,15 +533,6 @@ static void hwi_ring_cq_db(struct beiscsi_hba *phba,
iowrite32(val, phba->db_va + DB_CQ_OFFSET);
}
-/*
- * async pdus include
- * a. unsolicited NOP-In (target initiated NOP-In)
- * b. Async Messages
- * c. Reject PDU
- * d. Login response
- * These headers arrive unprocessed by the EP firmware and iSCSI layer
- * process them
- */
static unsigned int
beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
struct beiscsi_hba *phba,
@@ -397,6 +543,9 @@ beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
{
struct iscsi_conn *conn = beiscsi_conn->conn;
struct iscsi_session *session = conn->session;
+ struct iscsi_task *task;
+ struct beiscsi_io_task *io_task;
+ struct iscsi_hdr *login_hdr;
switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] &
PDUBASE_OPCODE_MASK) {
@@ -412,6 +561,10 @@ beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
SE_DEBUG(DBG_LVL_1, "In ISCSI_OP_REJECT\n");
break;
case ISCSI_OP_LOGIN_RSP:
+ task = conn->login_task;
+ io_task = task->dd_data;
+ login_hdr = (struct iscsi_hdr *)ppdu;
+ login_hdr->itt = io_task->libiscsi_itt;
break;
default:
shost_printk(KERN_WARNING, phba->shost,
@@ -440,7 +593,8 @@ static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
io_sgl_alloc_index];
phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL;
phba->io_sgl_hndl_avbl--;
- if (phba->io_sgl_alloc_index == (phba->params.ios_per_ctrl - 1))
+ if (phba->io_sgl_alloc_index == (phba->params.
+ ios_per_ctrl - 1))
phba->io_sgl_alloc_index = 0;
else
phba->io_sgl_alloc_index++;
@@ -490,9 +644,18 @@ struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid,
phwi_ctrlr = phba->phwi_ctrlr;
pwrb_context = &phwi_ctrlr->wrb_context[cid];
- pwrb_handle = pwrb_context->pwrb_handle_base[index];
- pwrb_handle->wrb_index = index;
- pwrb_handle->nxt_wrb_index = index;
+ if (pwrb_context->wrb_handles_available) {
+ pwrb_handle = pwrb_context->pwrb_handle_base[
+ pwrb_context->alloc_index];
+ pwrb_context->wrb_handles_available--;
+ pwrb_handle->nxt_wrb_index = pwrb_handle->wrb_index;
+ if (pwrb_context->alloc_index ==
+ (phba->params.wrbs_per_cxn - 1))
+ pwrb_context->alloc_index = 0;
+ else
+ pwrb_context->alloc_index++;
+ } else
+ pwrb_handle = NULL;
return pwrb_handle;
}
@@ -508,11 +671,20 @@ static void
free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context,
struct wrb_handle *pwrb_handle)
{
+ if (!ring_mode)
+ pwrb_context->pwrb_handle_base[pwrb_context->free_index] =
+ pwrb_handle;
+ pwrb_context->wrb_handles_available++;
+ if (pwrb_context->free_index == (phba->params.wrbs_per_cxn - 1))
+ pwrb_context->free_index = 0;
+ else
+ pwrb_context->free_index++;
+
SE_DEBUG(DBG_LVL_8,
- "FREE WRB: pwrb_handle=%p free_index=%d=0x%x"
+ "FREE WRB: pwrb_handle=%p free_index=0x%x"
"wrb_handles_available=%d \n",
pwrb_handle, pwrb_context->free_index,
- pwrb_context->free_index, pwrb_context->wrb_handles_available);
+ pwrb_context->wrb_handles_available);
}
static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
@@ -540,6 +712,8 @@ void
free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
{
+ SE_DEBUG(DBG_LVL_8, "In free_mgmt_sgl_handle,eh_sgl_free_index=%d \n",
+ phba->eh_sgl_free_index);
if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) {
/*
* this can happen if clean_task is called on a task that
@@ -572,10 +746,10 @@ be_complete_io(struct beiscsi_conn *beiscsi_conn,
u32 resid = 0, exp_cmdsn, max_cmdsn;
u8 rsp, status, flags;
- exp_cmdsn = be32_to_cpu(psol->
+ exp_cmdsn = (psol->
dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
& SOL_EXP_CMD_SN_MASK);
- max_cmdsn = be32_to_cpu((psol->
+ max_cmdsn = ((psol->
dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
& SOL_EXP_CMD_SN_MASK) +
((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
@@ -610,9 +784,9 @@ be_complete_io(struct beiscsi_conn *beiscsi_conn,
}
if (status == SAM_STAT_CHECK_CONDITION) {
+ unsigned short *slen = (unsigned short *)sts_bhs->sense_info;
sense = sts_bhs->sense_info + sizeof(unsigned short);
- sense_len =
- cpu_to_be16((unsigned short)(sts_bhs->sense_info[0]));
+ sense_len = cpu_to_be16(*slen);
memcpy(task->sc->sense_buffer, sense,
min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE));
}
@@ -620,8 +794,8 @@ be_complete_io(struct beiscsi_conn *beiscsi_conn,
if (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32]
& SOL_RES_CNT_MASK)
conn->rxdata_octets += (psol->
- dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32]
- & SOL_RES_CNT_MASK);
+ dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32]
+ & SOL_RES_CNT_MASK);
}
unmap:
scsi_dma_unmap(io_task->scsi_cmnd);
@@ -633,6 +807,7 @@ be_complete_logout(struct beiscsi_conn *beiscsi_conn,
struct iscsi_task *task, struct sol_cqe *psol)
{
struct iscsi_logout_rsp *hdr;
+ struct beiscsi_io_task *io_task = task->dd_data;
struct iscsi_conn *conn = beiscsi_conn->conn;
hdr = (struct iscsi_logout_rsp *)task->hdr;
@@ -651,7 +826,7 @@ be_complete_logout(struct beiscsi_conn *beiscsi_conn,
((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
/ 32] & SOL_CMD_WND_MASK) >> 24) - 1);
hdr->hlength = 0;
-
+ hdr->itt = io_task->libiscsi_itt;
__iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
}
@@ -661,6 +836,7 @@ be_complete_tmf(struct beiscsi_conn *beiscsi_conn,
{
struct iscsi_tm_rsp *hdr;
struct iscsi_conn *conn = beiscsi_conn->conn;
+ struct beiscsi_io_task *io_task = task->dd_data;
hdr = (struct iscsi_tm_rsp *)task->hdr;
hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
@@ -668,11 +844,12 @@ be_complete_tmf(struct beiscsi_conn *beiscsi_conn,
hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) /
32] & SOL_RESP_MASK);
hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe,
- i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK);
+ i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK);
hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe,
i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) +
((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
/ 32] & SOL_CMD_WND_MASK) >> 24) - 1);
+ hdr->itt = io_task->libiscsi_itt;
__iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
}
@@ -681,18 +858,36 @@ hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
struct beiscsi_hba *phba, struct sol_cqe *psol)
{
struct hwi_wrb_context *pwrb_context;
- struct wrb_handle *pwrb_handle;
+ struct wrb_handle *pwrb_handle = NULL;
+ struct sgl_handle *psgl_handle = NULL;
struct hwi_controller *phwi_ctrlr;
+ struct iscsi_task *task;
+ struct beiscsi_io_task *io_task;
struct iscsi_conn *conn = beiscsi_conn->conn;
struct iscsi_session *session = conn->session;
phwi_ctrlr = phba->phwi_ctrlr;
- pwrb_context = &phwi_ctrlr->wrb_context[((psol->
+ if (ring_mode) {
+ psgl_handle = phba->sgl_hndl_array[((psol->
+ dw[offsetof(struct amap_sol_cqe_ring, icd_index) /
+ 32] & SOL_ICD_INDEX_MASK) >> 6)];
+ pwrb_context = &phwi_ctrlr->wrb_context[psgl_handle->cid];
+ task = psgl_handle->task;
+ pwrb_handle = NULL;
+ } else {
+ pwrb_context = &phwi_ctrlr->wrb_context[((psol->
dw[offsetof(struct amap_sol_cqe, cid) / 32] &
SOL_CID_MASK) >> 6)];
- pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol->
+ pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol->
dw[offsetof(struct amap_sol_cqe, wrb_index) /
32] & SOL_WRB_INDEX_MASK) >> 16)];
+ task = pwrb_handle->pio_handle;
+ }
+
+ io_task = task->dd_data;
+ spin_lock(&phba->mgmt_sgl_lock);
+ free_mgmt_sgl_handle(phba, io_task->psgl_handle);
+ spin_unlock(&phba->mgmt_sgl_lock);
spin_lock_bh(&session->lock);
free_wrb_handle(phba, pwrb_context, pwrb_handle);
spin_unlock_bh(&session->lock);
@@ -704,6 +899,7 @@ be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn,
{
struct iscsi_nopin *hdr;
struct iscsi_conn *conn = beiscsi_conn->conn;
+ struct beiscsi_io_task *io_task = task->dd_data;
hdr = (struct iscsi_nopin *)task->hdr;
hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
@@ -715,6 +911,7 @@ be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn,
((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
/ 32] & SOL_CMD_WND_MASK) >> 24) - 1);
hdr->opcode = ISCSI_OP_NOOP_IN;
+ hdr->itt = io_task->libiscsi_itt;
__iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
}
@@ -726,25 +923,33 @@ static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn,
struct iscsi_wrb *pwrb = NULL;
struct hwi_controller *phwi_ctrlr;
struct iscsi_task *task;
- struct beiscsi_io_task *io_task;
+ struct sgl_handle *psgl_handle = NULL;
+ unsigned int type;
struct iscsi_conn *conn = beiscsi_conn->conn;
struct iscsi_session *session = conn->session;
phwi_ctrlr = phba->phwi_ctrlr;
-
- pwrb_context = &phwi_ctrlr->
- wrb_context[((psol->dw[offsetof(struct amap_sol_cqe, cid) / 32]
- & SOL_CID_MASK) >> 6)];
- pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol->
+ if (ring_mode) {
+ psgl_handle = phba->sgl_hndl_array[((psol->
+ dw[offsetof(struct amap_sol_cqe_ring, icd_index) /
+ 32] & SOL_ICD_INDEX_MASK) >> 6)];
+ task = psgl_handle->task;
+ type = psgl_handle->type;
+ } else {
+ pwrb_context = &phwi_ctrlr->
+ wrb_context[((psol->dw[offsetof
+ (struct amap_sol_cqe, cid) / 32]
+ & SOL_CID_MASK) >> 6)];
+ pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol->
dw[offsetof(struct amap_sol_cqe, wrb_index) /
32] & SOL_WRB_INDEX_MASK) >> 16)];
-
- task = pwrb_handle->pio_handle;
- io_task = task->dd_data;
+ task = pwrb_handle->pio_handle;
+ pwrb = pwrb_handle->pwrb;
+ type = (pwrb->dw[offsetof(struct amap_iscsi_wrb, type) / 32] &
+ WRB_TYPE_MASK) >> 28;
+ }
spin_lock_bh(&session->lock);
- pwrb = pwrb_handle->pwrb;
- switch ((pwrb->dw[offsetof(struct amap_iscsi_wrb, type) / 32] &
- WRB_TYPE_MASK) >> 28) {
+ switch (type) {
case HWH_TYPE_IO:
case HWH_TYPE_IO_RD:
if ((task->hdr->opcode & ISCSI_OPCODE_MASK) ==
@@ -773,12 +978,21 @@ static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn,
break;
default:
- shost_printk(KERN_WARNING, phba->shost,
- "wrb_index 0x%x CID 0x%x\n",
- ((psol->dw[offsetof(struct amap_iscsi_wrb, type) /
- 32] & SOL_WRB_INDEX_MASK) >> 16),
- ((psol->dw[offsetof(struct amap_sol_cqe, cid) / 32]
- & SOL_CID_MASK) >> 6));
+ if (ring_mode)
+ shost_printk(KERN_WARNING, phba->shost,
+ "In hwi_complete_cmd, unknown type = %d"
+ "icd_index 0x%x CID 0x%x\n", type,
+ ((psol->dw[offsetof(struct amap_sol_cqe_ring,
+ icd_index) / 32] & SOL_ICD_INDEX_MASK) >> 6),
+ psgl_handle->cid);
+ else
+ shost_printk(KERN_WARNING, phba->shost,
+ "In hwi_complete_cmd, unknown type = %d"
+ "wrb_index 0x%x CID 0x%x\n", type,
+ ((psol->dw[offsetof(struct amap_iscsi_wrb,
+ type) / 32] & SOL_WRB_INDEX_MASK) >> 16),
+ ((psol->dw[offsetof(struct amap_sol_cqe,
+ cid) / 32] & SOL_CID_MASK) >> 6));
break;
}
@@ -1208,40 +1422,55 @@ static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn,
hwi_post_async_buffers(phba, pasync_handle->is_header);
}
-static unsigned int beiscsi_process_cq(struct beiscsi_hba *phba)
+
+static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
{
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
struct be_queue_info *cq;
struct sol_cqe *sol;
struct dmsg_cqe *dmsg;
unsigned int num_processed = 0;
unsigned int tot_nump = 0;
struct beiscsi_conn *beiscsi_conn;
+ struct sgl_handle *psgl_handle = NULL;
+ struct beiscsi_hba *phba;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- cq = &phwi_context->be_cq;
+ cq = pbe_eq->cq;
sol = queue_tail_node(cq);
+ phba = pbe_eq->phba;
while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] &
CQE_VALID_MASK) {
be_dws_le_to_cpu(sol, sizeof(struct sol_cqe));
- beiscsi_conn = phba->conn_table[(u32) (sol->
+ if (ring_mode) {
+ psgl_handle = phba->sgl_hndl_array[((sol->
+ dw[offsetof(struct amap_sol_cqe_ring,
+ icd_index) / 32] & SOL_ICD_INDEX_MASK)
+ >> 6)];
+ beiscsi_conn = phba->conn_table[psgl_handle->cid];
+ if (!beiscsi_conn || !beiscsi_conn->ep) {
+ shost_printk(KERN_WARNING, phba->shost,
+ "Connection table empty for cid = %d\n",
+ psgl_handle->cid);
+ return 0;
+ }
+
+ } else {
+ beiscsi_conn = phba->conn_table[(u32) (sol->
dw[offsetof(struct amap_sol_cqe, cid) / 32] &
SOL_CID_MASK) >> 6];
- if (!beiscsi_conn || !beiscsi_conn->ep) {
- shost_printk(KERN_WARNING, phba->shost,
+ if (!beiscsi_conn || !beiscsi_conn->ep) {
+ shost_printk(KERN_WARNING, phba->shost,
"Connection table empty for cid = %d\n",
(u32)(sol->dw[offsetof(struct amap_sol_cqe,
cid) / 32] & SOL_CID_MASK) >> 6);
- return 0;
+ return 0;
+ }
}
if (num_processed >= 32) {
- hwi_ring_cq_db(phba, phwi_context->be_cq.id,
+ hwi_ring_cq_db(phba, cq->id,
num_processed, 0, 0);
tot_nump += num_processed;
num_processed = 0;
@@ -1258,8 +1487,12 @@ static unsigned int beiscsi_process_cq(struct beiscsi_hba *phba)
hwi_complete_drvr_msgs(beiscsi_conn, phba, sol);
break;
case UNSOL_HDR_NOTIFY:
+ SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR_ NOTIFY\n");
+ hwi_process_default_pdu_ring(beiscsi_conn, phba,
+ (struct i_t_dpdu_cqe *)sol);
+ break;
case UNSOL_DATA_NOTIFY:
- SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR/DATA_NOTIFY\n");
+ SE_DEBUG(DBG_LVL_8, "Received UNSOL_DATA_NOTIFY\n");
hwi_process_default_pdu_ring(beiscsi_conn, phba,
(struct i_t_dpdu_cqe *)sol);
break;
@@ -1278,13 +1511,21 @@ static unsigned int beiscsi_process_cq(struct beiscsi_hba *phba)
case CMD_CXN_KILLED_ITT_INVALID:
case CMD_CXN_KILLED_SEQ_OUTOFORDER:
case CMD_CXN_KILLED_INVALID_DATASN_RCVD:
- SE_DEBUG(DBG_LVL_1,
+ if (ring_mode) {
+ SE_DEBUG(DBG_LVL_1,
+ "CQ Error notification for cmd.. "
+ "code %d cid 0x%x\n",
+ sol->dw[offsetof(struct amap_sol_cqe, code) /
+ 32] & CQE_CODE_MASK, psgl_handle->cid);
+ } else {
+ SE_DEBUG(DBG_LVL_1,
"CQ Error notification for cmd.. "
"code %d cid 0x%x\n",
sol->dw[offsetof(struct amap_sol_cqe, code) /
32] & CQE_CODE_MASK,
(sol->dw[offsetof(struct amap_sol_cqe, cid) /
32] & SOL_CID_MASK));
+ }
break;
case UNSOL_DATA_DIGEST_ERROR_NOTIFY:
SE_DEBUG(DBG_LVL_1,
@@ -1306,23 +1547,37 @@ static unsigned int beiscsi_process_cq(struct beiscsi_hba *phba)
case CXN_KILLED_OVER_RUN_RESIDUAL:
case CXN_KILLED_UNDER_RUN_RESIDUAL:
case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN:
- SE_DEBUG(DBG_LVL_1, "CQ Error %d, resetting CID "
+ if (ring_mode) {
+ SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset CID "
+ "0x%x...\n",
+ sol->dw[offsetof(struct amap_sol_cqe, code) /
+ 32] & CQE_CODE_MASK, psgl_handle->cid);
+ } else {
+ SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset CID "
"0x%x...\n",
sol->dw[offsetof(struct amap_sol_cqe, code) /
32] & CQE_CODE_MASK,
sol->dw[offsetof(struct amap_sol_cqe, cid) /
32] & CQE_CID_MASK);
+ }
iscsi_conn_failure(beiscsi_conn->conn,
ISCSI_ERR_CONN_FAILED);
break;
case CXN_KILLED_RST_SENT:
case CXN_KILLED_RST_RCVD:
- SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset received/sent "
- "on CID 0x%x...\n",
+ if (ring_mode) {
+ SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset"
+ "received/sent on CID 0x%x...\n",
+ sol->dw[offsetof(struct amap_sol_cqe, code) /
+ 32] & CQE_CODE_MASK, psgl_handle->cid);
+ } else {
+ SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset"
+ "received/sent on CID 0x%x...\n",
sol->dw[offsetof(struct amap_sol_cqe, code) /
32] & CQE_CODE_MASK,
sol->dw[offsetof(struct amap_sol_cqe, cid) /
32] & CQE_CID_MASK);
+ }
iscsi_conn_failure(beiscsi_conn->conn,
ISCSI_ERR_CONN_FAILED);
break;
@@ -1344,8 +1599,7 @@ static unsigned int beiscsi_process_cq(struct beiscsi_hba *phba)
if (num_processed > 0) {
tot_nump += num_processed;
- hwi_ring_cq_db(phba, phwi_context->be_cq.id, num_processed,
- 1, 0);
+ hwi_ring_cq_db(phba, cq->id, num_processed, 1, 0);
}
return tot_nump;
}
@@ -1353,21 +1607,30 @@ static unsigned int beiscsi_process_cq(struct beiscsi_hba *phba)
static void beiscsi_process_all_cqs(struct work_struct *work)
{
unsigned long flags;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ struct be_eq_obj *pbe_eq;
struct beiscsi_hba *phba =
container_of(work, struct beiscsi_hba, work_cqs);
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ if (phba->msix_enabled)
+ pbe_eq = &phwi_context->be_eq[phba->num_cpus];
+ else
+ pbe_eq = &phwi_context->be_eq[0];
+
if (phba->todo_mcc_cq) {
spin_lock_irqsave(&phba->isr_lock, flags);
phba->todo_mcc_cq = 0;
spin_unlock_irqrestore(&phba->isr_lock, flags);
- SE_DEBUG(DBG_LVL_1, "MCC Interrupt Not expected \n");
}
if (phba->todo_cq) {
spin_lock_irqsave(&phba->isr_lock, flags);
phba->todo_cq = 0;
spin_unlock_irqrestore(&phba->isr_lock, flags);
- beiscsi_process_cq(phba);
+ beiscsi_process_cq(pbe_eq);
}
}
@@ -1375,19 +1638,15 @@ static int be_iopoll(struct blk_iopoll *iop, int budget)
{
static unsigned int ret;
struct beiscsi_hba *phba;
+ struct be_eq_obj *pbe_eq;
- phba = container_of(iop, struct beiscsi_hba, iopoll);
-
- ret = beiscsi_process_cq(phba);
+ pbe_eq = container_of(iop, struct be_eq_obj, iopoll);
+ ret = beiscsi_process_cq(pbe_eq);
if (ret < budget) {
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
-
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
+ phba = pbe_eq->phba;
blk_iopoll_complete(iop);
- hwi_ring_eq_db(phba, phwi_context->be_eq.q.id, 0,
- 0, 1, 1);
+ SE_DEBUG(DBG_LVL_8, "rearm pbe_eq->q.id =%d\n", pbe_eq->q.id);
+ hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
}
return ret;
}
@@ -1537,14 +1796,12 @@ static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task)
static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
{
- unsigned int num_cq_pages, num_eq_pages, num_async_pdu_buf_pages;
+ unsigned int num_cq_pages, num_async_pdu_buf_pages;
unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn;
unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages;
num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
sizeof(struct sol_cqe));
- num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \
- sizeof(struct be_eq_entry));
num_async_pdu_buf_pages =
PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
phba->params.defpdu_hdr_sz);
@@ -1565,8 +1822,6 @@ static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
phba->mem_req[HWI_MEM_ADDN_CONTEXT] =
sizeof(struct hwi_context_memory);
- phba->mem_req[HWI_MEM_CQ] = num_cq_pages * PAGE_SIZE;
- phba->mem_req[HWI_MEM_EQ] = num_eq_pages * PAGE_SIZE;
phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb)
* (phba->params.wrbs_per_cxn)
@@ -1751,8 +2006,6 @@ static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) {
pwrb_context = &phwi_ctrlr->wrb_context[index];
- SE_DEBUG(DBG_LVL_8, "cid=%d pwrb_context=%p \n", index,
- pwrb_context);
pwrb_context->pwrb_handle_base =
kzalloc(sizeof(struct wrb_handle *) *
phba->params.wrbs_per_cxn, GFP_KERNEL);
@@ -1767,6 +2020,7 @@ static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
pwrb_context->pwrb_handle_basestd[j] =
pwrb_handle;
pwrb_context->wrb_handles_available++;
+ pwrb_handle->wrb_index = j;
pwrb_handle++;
}
pwrb_context->free_index = 0;
@@ -1785,6 +2039,7 @@ static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
pwrb_context->pwrb_handle_basestd[j] =
pwrb_handle;
pwrb_context->wrb_handles_available++;
+ pwrb_handle->wrb_index = j;
pwrb_handle++;
}
pwrb_context->free_index = 0;
@@ -2042,79 +2297,126 @@ static int be_fill_queue(struct be_queue_info *q,
return 0;
}
-static int beiscsi_create_eq(struct beiscsi_hba *phba,
+static int beiscsi_create_eqs(struct beiscsi_hba *phba,
struct hwi_context_memory *phwi_context)
{
- unsigned int idx;
- int ret;
+ unsigned int i, num_eq_pages;
+ int ret, eq_for_mcc;
struct be_queue_info *eq;
struct be_dma_mem *mem;
- struct be_mem_descriptor *mem_descr;
void *eq_vaddress;
+ dma_addr_t paddr;
- idx = 0;
- eq = &phwi_context->be_eq.q;
- mem = &eq->dma_mem;
- mem_descr = phba->init_mem;
- mem_descr += HWI_MEM_EQ;
- eq_vaddress = mem_descr->mem_array[idx].virtual_address;
-
- ret = be_fill_queue(eq, phba->params.num_eq_entries,
- sizeof(struct be_eq_entry), eq_vaddress);
- if (ret) {
- shost_printk(KERN_ERR, phba->shost,
- "be_fill_queue Failed for EQ \n");
- return ret;
- }
+ num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \
+ sizeof(struct be_eq_entry));
- mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
+ if (phba->msix_enabled)
+ eq_for_mcc = 1;
+ else
+ eq_for_mcc = 0;
+ for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
+ eq = &phwi_context->be_eq[i].q;
+ mem = &eq->dma_mem;
+ phwi_context->be_eq[i].phba = phba;
+ eq_vaddress = pci_alloc_consistent(phba->pcidev,
+ num_eq_pages * PAGE_SIZE,
+ &paddr);
+ if (!eq_vaddress)
+ goto create_eq_error;
+
+ mem->va = eq_vaddress;
+ ret = be_fill_queue(eq, phba->params.num_eq_entries,
+ sizeof(struct be_eq_entry), eq_vaddress);
+ if (ret) {
+ shost_printk(KERN_ERR, phba->shost,
+ "be_fill_queue Failed for EQ \n");
+ goto create_eq_error;
+ }
- ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
- phwi_context->be_eq.cur_eqd);
- if (ret) {
- shost_printk(KERN_ERR, phba->shost, "beiscsi_cmd_eq_create"
- "Failedfor EQ \n");
- return ret;
+ mem->dma = paddr;
+ ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
+ phwi_context->cur_eqd);
+ if (ret) {
+ shost_printk(KERN_ERR, phba->shost,
+ "beiscsi_cmd_eq_create"
+ "Failedfor EQ \n");
+ goto create_eq_error;
+ }
+ SE_DEBUG(DBG_LVL_8, "eqid = %d\n", phwi_context->be_eq[i].q.id);
}
- SE_DEBUG(DBG_LVL_8, "eq id is %d\n", phwi_context->be_eq.q.id);
return 0;
+create_eq_error:
+ for (i = 0; i < (phba->num_cpus + 1); i++) {
+ eq = &phwi_context->be_eq[i].q;
+ mem = &eq->dma_mem;
+ if (mem->va)
+ pci_free_consistent(phba->pcidev, num_eq_pages
+ * PAGE_SIZE,
+ mem->va, mem->dma);
+ }
+ return ret;
}
-static int beiscsi_create_cq(struct beiscsi_hba *phba,
+static int beiscsi_create_cqs(struct beiscsi_hba *phba,
struct hwi_context_memory *phwi_context)
{
- unsigned int idx;
+ unsigned int i, num_cq_pages;
int ret;
struct be_queue_info *cq, *eq;
struct be_dma_mem *mem;
- struct be_mem_descriptor *mem_descr;
+ struct be_eq_obj *pbe_eq;
void *cq_vaddress;
+ dma_addr_t paddr;
- idx = 0;
- cq = &phwi_context->be_cq;
- eq = &phwi_context->be_eq.q;
- mem = &cq->dma_mem;
- mem_descr = phba->init_mem;
- mem_descr += HWI_MEM_CQ;
- cq_vaddress = mem_descr->mem_array[idx].virtual_address;
- ret = be_fill_queue(cq, phba->params.icds_per_ctrl / 2,
- sizeof(struct sol_cqe), cq_vaddress);
- if (ret) {
- shost_printk(KERN_ERR, phba->shost,
- "be_fill_queue Failed for ISCSI CQ \n");
- return ret;
- }
+ num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
+ sizeof(struct sol_cqe));
- mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
- ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, false, 0);
- if (ret) {
- shost_printk(KERN_ERR, phba->shost,
- "beiscsi_cmd_eq_create Failed for ISCSI CQ \n");
- return ret;
+ for (i = 0; i < phba->num_cpus; i++) {
+ cq = &phwi_context->be_cq[i];
+ eq = &phwi_context->be_eq[i].q;
+ pbe_eq = &phwi_context->be_eq[i];
+ pbe_eq->cq = cq;
+ pbe_eq->phba = phba;
+ mem = &cq->dma_mem;
+ cq_vaddress = pci_alloc_consistent(phba->pcidev,
+ num_cq_pages * PAGE_SIZE,
+ &paddr);
+ if (!cq_vaddress)
+ goto create_cq_error;
+ ret = be_fill_queue(cq, phba->params.icds_per_ctrl / 2,
+ sizeof(struct sol_cqe), cq_vaddress);
+ if (ret) {
+ shost_printk(KERN_ERR, phba->shost,
+ "be_fill_queue Failed for ISCSI CQ \n");
+ goto create_cq_error;
+ }
+
+ mem->dma = paddr;
+ ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false,
+ false, 0);
+ if (ret) {
+ shost_printk(KERN_ERR, phba->shost,
+ "beiscsi_cmd_eq_create"
+ "Failed for ISCSI CQ \n");
+ goto create_cq_error;
+ }
+ SE_DEBUG(DBG_LVL_8, "iscsi cq_id is %d for eq_id %d\n",
+ cq->id, eq->id);
+ SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n");
}
- SE_DEBUG(DBG_LVL_8, "iscsi cq id is %d\n", phwi_context->be_cq.id);
- SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n");
return 0;
+
+create_cq_error:
+ for (i = 0; i < phba->num_cpus; i++) {
+ cq = &phwi_context->be_cq[i];
+ mem = &cq->dma_mem;
+ if (mem->va)
+ pci_free_consistent(phba->pcidev, num_cq_pages
+ * PAGE_SIZE,
+ mem->va, mem->dma);
+ }
+ return ret;
+
}
static int
@@ -2132,7 +2434,7 @@ beiscsi_create_def_hdr(struct beiscsi_hba *phba,
idx = 0;
dq = &phwi_context->be_def_hdrq;
- cq = &phwi_context->be_cq;
+ cq = &phwi_context->be_cq[0];
mem = &dq->dma_mem;
mem_descr = phba->init_mem;
mem_descr += HWI_MEM_ASYNC_HEADER_RING;
@@ -2176,7 +2478,7 @@ beiscsi_create_def_data(struct beiscsi_hba *phba,
idx = 0;
dataq = &phwi_context->be_def_dataq;
- cq = &phwi_context->be_cq;
+ cq = &phwi_context->be_cq[0];
mem = &dataq->dma_mem;
mem_descr = phba->init_mem;
mem_descr += HWI_MEM_ASYNC_DATA_RING;
@@ -2239,6 +2541,30 @@ beiscsi_post_pages(struct beiscsi_hba *phba)
return 0;
}
+static void be_queue_free(struct beiscsi_hba *phba, struct be_queue_info *q)
+{
+ struct be_dma_mem *mem = &q->dma_mem;
+ if (mem->va)
+ pci_free_consistent(phba->pcidev, mem->size,
+ mem->va, mem->dma);
+}
+
+static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q,
+ u16 len, u16 entry_size)
+{
+ struct be_dma_mem *mem = &q->dma_mem;
+
+ memset(q, 0, sizeof(*q));
+ q->len = len;
+ q->entry_size = entry_size;
+ mem->size = len * entry_size;
+ mem->va = pci_alloc_consistent(phba->pcidev, mem->size, &mem->dma);
+ if (!mem->va)
+ return -1;
+ memset(mem->va, 0, mem->size);
+ return 0;
+}
+
static int
beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
struct hwi_context_memory *phwi_context,
@@ -2328,13 +2654,29 @@ static void free_wrb_handles(struct beiscsi_hba *phba)
}
}
+static void be_mcc_queues_destroy(struct beiscsi_hba *phba)
+{
+ struct be_queue_info *q;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+
+ q = &phba->ctrl.mcc_obj.q;
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ);
+ be_queue_free(phba, q);
+
+ q = &phba->ctrl.mcc_obj.cq;
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
+ be_queue_free(phba, q);
+}
+
static void hwi_cleanup(struct beiscsi_hba *phba)
{
struct be_queue_info *q;
struct be_ctrl_info *ctrl = &phba->ctrl;
struct hwi_controller *phwi_ctrlr;
struct hwi_context_memory *phwi_context;
- int i;
+ int i, eq_num;
phwi_ctrlr = phba->phwi_ctrlr;
phwi_context = phwi_ctrlr->phwi_ctxt;
@@ -2343,7 +2685,6 @@ static void hwi_cleanup(struct beiscsi_hba *phba)
if (q->created)
beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ);
}
-
free_wrb_handles(phba);
q = &phwi_context->be_def_hdrq;
@@ -2356,13 +2697,76 @@ static void hwi_cleanup(struct beiscsi_hba *phba)
beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
- q = &phwi_context->be_cq;
- if (q->created)
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
+ for (i = 0; i < (phba->num_cpus); i++) {
+ q = &phwi_context->be_cq[i];
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
+ }
+ if (phba->msix_enabled)
+ eq_num = 1;
+ else
+ eq_num = 0;
+ for (i = 0; i < (phba->num_cpus + eq_num); i++) {
+ q = &phwi_context->be_eq[i].q;
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
+ }
+ be_mcc_queues_destroy(phba);
+}
- q = &phwi_context->be_eq.q;
- if (q->created)
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
+static int be_mcc_queues_create(struct beiscsi_hba *phba,
+ struct hwi_context_memory *phwi_context)
+{
+ struct be_queue_info *q, *cq;
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+
+ /* Alloc MCC compl queue */
+ cq = &phba->ctrl.mcc_obj.cq;
+ if (be_queue_alloc(phba, cq, MCC_CQ_LEN,
+ sizeof(struct be_mcc_compl)))
+ goto err;
+ /* Ask BE to create MCC compl queue; */
+ if (phba->msix_enabled) {
+ if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq
+ [phba->num_cpus].q, false, true, 0))
+ goto mcc_cq_free;
+ } else {
+ if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq[0].q,
+ false, true, 0))
+ goto mcc_cq_free;
+ }
+
+ /* Alloc MCC queue */
+ q = &phba->ctrl.mcc_obj.q;
+ if (be_queue_alloc(phba, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
+ goto mcc_cq_destroy;
+
+ /* Ask BE to create MCC queue */
+ if (beiscsi_cmd_mccq_create(phba, q, cq))
+ goto mcc_q_free;
+
+ return 0;
+
+mcc_q_free:
+ be_queue_free(phba, q);
+mcc_cq_destroy:
+ beiscsi_cmd_q_destroy(ctrl, cq, QTYPE_CQ);
+mcc_cq_free:
+ be_queue_free(phba, cq);
+err:
+ return -1;
+}
+
+static int find_num_cpus(void)
+{
+ int num_cpus = 0;
+
+ num_cpus = num_online_cpus();
+ if (num_cpus >= MAX_CPUS)
+ num_cpus = MAX_CPUS - 1;
+
+ SE_DEBUG(DBG_LVL_8, "num_cpus = %d \n", num_cpus);
+ return num_cpus;
}
static int hwi_init_port(struct beiscsi_hba *phba)
@@ -2376,26 +2780,33 @@ static int hwi_init_port(struct beiscsi_hba *phba)
def_pdu_ring_sz =
phba->params.asyncpdus_per_ctrl * sizeof(struct phys_addr);
phwi_ctrlr = phba->phwi_ctrlr;
-
phwi_context = phwi_ctrlr->phwi_ctxt;
- phwi_context->be_eq.max_eqd = 0;
- phwi_context->be_eq.min_eqd = 0;
- phwi_context->be_eq.cur_eqd = 64;
- phwi_context->be_eq.enable_aic = false;
+ phwi_context->max_eqd = 0;
+ phwi_context->min_eqd = 0;
+ phwi_context->cur_eqd = 64;
be_cmd_fw_initialize(&phba->ctrl);
- status = beiscsi_create_eq(phba, phwi_context);
+
+ status = beiscsi_create_eqs(phba, phwi_context);
if (status != 0) {
shost_printk(KERN_ERR, phba->shost, "EQ not created \n");
goto error;
}
- status = mgmt_check_supported_fw(ctrl);
+ status = be_mcc_queues_create(phba, phwi_context);
+ if (status != 0)
+ goto error;
+
+ status = mgmt_check_supported_fw(ctrl, phba);
if (status != 0) {
shost_printk(KERN_ERR, phba->shost,
"Unsupported fw version \n");
goto error;
}
+ if (phba->fw_config.iscsi_features == 0x1)
+ ring_mode = 1;
+ else
+ ring_mode = 0;
status = mgmt_get_fw_config(ctrl, phba);
if (status != 0) {
shost_printk(KERN_ERR, phba->shost,
@@ -2403,7 +2814,7 @@ static int hwi_init_port(struct beiscsi_hba *phba)
goto error;
}
- status = beiscsi_create_cq(phba, phwi_context);
+ status = beiscsi_create_cqs(phba, phwi_context);
if (status != 0) {
shost_printk(KERN_ERR, phba->shost, "CQ not created\n");
goto error;
@@ -2447,7 +2858,6 @@ error:
return -ENOMEM;
}
-
static int hwi_init_controller(struct beiscsi_hba *phba)
{
struct hwi_controller *phwi_ctrlr;
@@ -2530,6 +2940,18 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
phba->io_sgl_hndl_avbl = 0;
phba->eh_sgl_hndl_avbl = 0;
+
+ if (ring_mode) {
+ phba->sgl_hndl_array = kzalloc(sizeof(struct sgl_handle *) *
+ phba->params.icds_per_ctrl,
+ GFP_KERNEL);
+ if (!phba->sgl_hndl_array) {
+ shost_printk(KERN_ERR, phba->shost,
+ "Mem Alloc Failed. Failing to load\n");
+ return -ENOMEM;
+ }
+ }
+
mem_descr_sglh = phba->init_mem;
mem_descr_sglh += HWI_MEM_SGLH;
if (1 == mem_descr_sglh->num_elements) {
@@ -2537,6 +2959,8 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
phba->params.ios_per_ctrl,
GFP_KERNEL);
if (!phba->io_sgl_hndl_base) {
+ if (ring_mode)
+ kfree(phba->sgl_hndl_array);
shost_printk(KERN_ERR, phba->shost,
"Mem Alloc Failed. Failing to load\n");
return -ENOMEM;
@@ -2656,13 +3080,12 @@ static unsigned char hwi_enable_intr(struct beiscsi_hba *phba)
struct hwi_context_memory *phwi_context;
struct be_queue_info *eq;
u8 __iomem *addr;
- u32 reg;
+ u32 reg, i;
u32 enabled;
phwi_ctrlr = phba->phwi_ctrlr;
phwi_context = phwi_ctrlr->phwi_ctxt;
- eq = &phwi_context->be_eq.q;
addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg +
PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET);
reg = ioread32(addr);
@@ -2673,9 +3096,11 @@ static unsigned char hwi_enable_intr(struct beiscsi_hba *phba)
reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p \n", reg, addr);
iowrite32(reg, addr);
- SE_DEBUG(DBG_LVL_8, "eq->id=%d \n", eq->id);
-
- hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
+ for (i = 0; i <= phba->num_cpus; i++) {
+ eq = &phwi_context->be_eq[i].q;
+ SE_DEBUG(DBG_LVL_8, "eq->id=%d \n", eq->id);
+ hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
+ }
} else
shost_printk(KERN_WARNING, phba->shost,
"In hwi_enable_intr, Not Enabled \n");
@@ -2720,6 +3145,8 @@ static int beiscsi_init_port(struct beiscsi_hba *phba)
if (hba_setup_cid_tbls(phba)) {
shost_printk(KERN_ERR, phba->shost,
"Failed in hba_setup_cid_tbls\n");
+ if (ring_mode)
+ kfree(phba->sgl_hndl_array);
kfree(phba->io_sgl_hndl_base);
kfree(phba->eh_sgl_hndl_base);
goto do_cleanup_ctrlr;
@@ -2738,17 +3165,25 @@ static void hwi_purge_eq(struct beiscsi_hba *phba)
struct hwi_context_memory *phwi_context;
struct be_queue_info *eq;
struct be_eq_entry *eqe = NULL;
+ int i, eq_msix;
phwi_ctrlr = phba->phwi_ctrlr;
phwi_context = phwi_ctrlr->phwi_ctxt;
- eq = &phwi_context->be_eq.q;
- eqe = queue_tail_node(eq);
+ if (phba->msix_enabled)
+ eq_msix = 1;
+ else
+ eq_msix = 0;
- while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
- & EQE_VALID_MASK) {
- AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
- queue_tail_inc(eq);
+ for (i = 0; i < (phba->num_cpus + eq_msix); i++) {
+ eq = &phwi_context->be_eq[i].q;
eqe = queue_tail_node(eq);
+
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+ & EQE_VALID_MASK) {
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+ queue_tail_inc(eq);
+ eqe = queue_tail_node(eq);
+ }
}
}
@@ -2762,6 +3197,8 @@ static void beiscsi_clean_port(struct beiscsi_hba *phba)
"mgmt_epfw_cleanup FAILED \n");
hwi_cleanup(phba);
hwi_purge_eq(phba);
+ if (ring_mode)
+ kfree(phba->sgl_hndl_array);
kfree(phba->io_sgl_hndl_base);
kfree(phba->eh_sgl_hndl_base);
kfree(phba->cid_array);
@@ -2846,8 +3283,9 @@ beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_target_context_update_wrb));
doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
- doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) <<
- DB_DEF_PDU_WRB_INDEX_SHIFT;
+ if (!ring_mode)
+ doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK)
+ << DB_DEF_PDU_WRB_INDEX_SHIFT;
doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
@@ -2856,7 +3294,7 @@ beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt,
int *index, int *age)
{
- *index = be32_to_cpu(itt) >> 16;
+ *index = (int)itt;
if (age)
*age = conn->session->age;
}
@@ -2885,15 +3323,13 @@ static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool,
GFP_KERNEL, &paddr);
-
if (!io_task->cmd_bhs)
return -ENOMEM;
-
io_task->bhs_pa.u.a64.address = paddr;
+ io_task->libiscsi_itt = (itt_t)task->itt;
io_task->pwrb_handle = alloc_wrb_handle(phba,
beiscsi_conn->beiscsi_conn_cid,
task->itt);
- io_task->pwrb_handle->pio_handle = task;
io_task->conn = beiscsi_conn;
task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr;
@@ -2905,7 +3341,6 @@ static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
spin_unlock(&phba->io_sgl_lock);
if (!io_task->psgl_handle)
goto free_hndls;
-
} else {
io_task->scsi_cmnd = NULL;
if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) {
@@ -2932,8 +3367,18 @@ static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
goto free_hndls;
}
}
- itt = (itt_t) cpu_to_be32(((unsigned int)task->itt << 16) |
- (unsigned int)(io_task->psgl_handle->sgl_index));
+ itt = (itt_t) cpu_to_be32(((unsigned int)io_task->pwrb_handle->
+ wrb_index << 16) | (unsigned int)
+ (io_task->psgl_handle->sgl_index));
+ if (ring_mode) {
+ phba->sgl_hndl_array[io_task->psgl_handle->sgl_index -
+ phba->fw_config.iscsi_cid_start] =
+ io_task->psgl_handle;
+ io_task->psgl_handle->task = task;
+ io_task->psgl_handle->cid = beiscsi_conn->beiscsi_conn_cid;
+ } else
+ io_task->pwrb_handle->pio_handle = task;
+
io_task->cmd_bhs->iscsi_hdr.itt = itt;
return 0;
@@ -3006,7 +3451,6 @@ static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
io_task->bhs_len = sizeof(struct be_cmd_bhs);
if (writedir) {
- SE_DEBUG(DBG_LVL_4, " WRITE Command \t");
memset(&io_task->cmd_bhs->iscsi_data_pdu, 0, 48);
AMAP_SET_BITS(struct amap_pdu_data_out, itt,
&io_task->cmd_bhs->iscsi_data_pdu,
@@ -3016,11 +3460,18 @@ static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
ISCSI_OPCODE_SCSI_DATA_OUT);
AMAP_SET_BITS(struct amap_pdu_data_out, final_bit,
&io_task->cmd_bhs->iscsi_data_pdu, 1);
- AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_WR_CMD);
+ if (ring_mode)
+ io_task->psgl_handle->type = INI_WR_CMD;
+ else
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
+ INI_WR_CMD);
AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
} else {
- SE_DEBUG(DBG_LVL_4, "READ Command \t");
- AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_RD_CMD);
+ if (ring_mode)
+ io_task->psgl_handle->type = INI_RD_CMD;
+ else
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
+ INI_RD_CMD);
AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
}
memcpy(&io_task->cmd_bhs->iscsi_data_pdu.
@@ -3045,7 +3496,8 @@ static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
- doorbell |= (io_task->pwrb_handle->wrb_index &
+ if (!ring_mode)
+ doorbell |= (io_task->pwrb_handle->wrb_index &
DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
@@ -3059,10 +3511,16 @@ static int beiscsi_mtask(struct iscsi_task *task)
struct iscsi_conn *conn = task->conn;
struct beiscsi_conn *beiscsi_conn = conn->dd_data;
struct beiscsi_hba *phba = beiscsi_conn->phba;
+ struct iscsi_session *session;
struct iscsi_wrb *pwrb = NULL;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_wrb_context *pwrb_context;
+ struct wrb_handle *pwrb_handle;
unsigned int doorbell = 0;
+ unsigned int i, cid;
struct iscsi_task *aborted_task;
+ cid = beiscsi_conn->beiscsi_conn_cid;
pwrb = io_task->pwrb_handle->pwrb;
AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
be32_to_cpu(task->cmdsn));
@@ -3073,38 +3531,63 @@ static int beiscsi_mtask(struct iscsi_task *task)
switch (task->hdr->opcode & ISCSI_OPCODE_MASK) {
case ISCSI_OP_LOGIN:
- AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, TGT_DM_CMD);
+ if (ring_mode)
+ io_task->psgl_handle->type = TGT_DM_CMD;
+ else
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
+ TGT_DM_CMD);
AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1);
hwi_write_buffer(pwrb, task);
break;
case ISCSI_OP_NOOP_OUT:
- AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_RD_CMD);
+ if (ring_mode)
+ io_task->psgl_handle->type = INI_RD_CMD;
+ else
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
+ INI_RD_CMD);
hwi_write_buffer(pwrb, task);
break;
case ISCSI_OP_TEXT:
- AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_WR_CMD);
+ if (ring_mode)
+ io_task->psgl_handle->type = INI_WR_CMD;
+ else
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
+ INI_WR_CMD);
AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
hwi_write_buffer(pwrb, task);
break;
case ISCSI_OP_SCSI_TMFUNC:
- aborted_task = iscsi_itt_to_task(conn,
- ((struct iscsi_tm *)task->hdr)->rtt);
+ session = conn->session;
+ i = ((struct iscsi_tm *)task->hdr)->rtt;
+ phwi_ctrlr = phba->phwi_ctrlr;
+ pwrb_context = &phwi_ctrlr->wrb_context[cid];
+ pwrb_handle = pwrb_context->pwrb_handle_basestd[be32_to_cpu(i)
+ >> 16];
+ aborted_task = pwrb_handle->pio_handle;
if (!aborted_task)
return 0;
+
aborted_io_task = aborted_task->dd_data;
if (!aborted_io_task->scsi_cmnd)
return 0;
mgmt_invalidate_icds(phba,
aborted_io_task->psgl_handle->sgl_index,
- beiscsi_conn->beiscsi_conn_cid);
- AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_TMF_CMD);
+ cid);
+ if (ring_mode)
+ io_task->psgl_handle->type = INI_TMF_CMD;
+ else
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
+ INI_TMF_CMD);
AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
hwi_write_buffer(pwrb, task);
break;
case ISCSI_OP_LOGOUT:
AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
+ if (ring_mode)
+ io_task->psgl_handle->type = HWH_TYPE_LOGOUT;
+ else
AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
HWH_TYPE_LOGOUT);
hwi_write_buffer(pwrb, task);
@@ -3122,8 +3605,9 @@ static int beiscsi_mtask(struct iscsi_task *task)
io_task->pwrb_handle->nxt_wrb_index);
be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
- doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
- doorbell |= (io_task->pwrb_handle->wrb_index &
+ doorbell |= cid & DB_WRB_POST_CID_MASK;
+ if (!ring_mode)
+ doorbell |= (io_task->pwrb_handle->wrb_index &
DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
@@ -3165,9 +3649,14 @@ static int beiscsi_task_xmit(struct iscsi_task *task)
return beiscsi_iotask(task, sg, num_sg, xferlen, writedir);
}
+
static void beiscsi_remove(struct pci_dev *pcidev)
{
struct beiscsi_hba *phba = NULL;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ struct be_eq_obj *pbe_eq;
+ unsigned int i, msix_vec;
phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev);
if (!phba) {
@@ -3175,12 +3664,24 @@ static void beiscsi_remove(struct pci_dev *pcidev)
return;
}
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
hwi_disable_intr(phba);
- if (phba->pcidev->irq)
- free_irq(phba->pcidev->irq, phba);
+ if (phba->msix_enabled) {
+ for (i = 0; i <= phba->num_cpus; i++) {
+ msix_vec = phba->msix_entries[i].vector;
+ free_irq(msix_vec, &phwi_context->be_eq[i]);
+ }
+ } else
+ if (phba->pcidev->irq)
+ free_irq(phba->pcidev->irq, phba);
+ pci_disable_msix(phba->pcidev);
destroy_workqueue(phba->wq);
if (blk_iopoll_enabled)
- blk_iopoll_disable(&phba->iopoll);
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ blk_iopoll_disable(&pbe_eq->iopoll);
+ }
beiscsi_clean_port(phba);
beiscsi_free_mem(phba);
@@ -3194,11 +3695,29 @@ static void beiscsi_remove(struct pci_dev *pcidev)
iscsi_host_free(phba->shost);
}
+static void beiscsi_msix_enable(struct beiscsi_hba *phba)
+{
+ int i, status;
+
+ for (i = 0; i <= phba->num_cpus; i++)
+ phba->msix_entries[i].entry = i;
+
+ status = pci_enable_msix(phba->pcidev, phba->msix_entries,
+ (phba->num_cpus + 1));
+ if (!status)
+ phba->msix_enabled = true;
+
+ return;
+}
+
static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
const struct pci_device_id *id)
{
struct beiscsi_hba *phba = NULL;
- int ret;
+ struct hwi_controller *phwi_ctrlr;
+ struct hwi_context_memory *phwi_context;
+ struct be_eq_obj *pbe_eq;
+ int ret, msix_vec, num_cpus, i;
ret = beiscsi_enable_pci(pcidev);
if (ret < 0) {
@@ -3213,8 +3732,18 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
" Failed in beiscsi_hba_alloc \n");
goto disable_pci;
}
+ SE_DEBUG(DBG_LVL_8, " phba = %p \n", phba);
pci_set_drvdata(pcidev, phba);
+ if (enable_msix)
+ num_cpus = find_num_cpus();
+ else
+ num_cpus = 1;
+ phba->num_cpus = num_cpus;
+ SE_DEBUG(DBG_LVL_8, "num_cpus = %d \n", phba->num_cpus);
+
+ if (enable_msix)
+ beiscsi_msix_enable(phba);
ret = be_ctrl_init(phba, pcidev);
if (ret) {
shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
@@ -3235,7 +3764,7 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_q_irq%u",
phba->shost->host_no);
- phba->wq = create_singlethread_workqueue(phba->wq_name);
+ phba->wq = create_workqueue(phba->wq_name);
if (!phba->wq) {
shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
"Failed to allocate work queue\n");
@@ -3244,11 +3773,16 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
INIT_WORK(&phba->work_cqs, beiscsi_process_all_cqs);
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
if (blk_iopoll_enabled) {
- blk_iopoll_init(&phba->iopoll, be_iopoll_budget, be_iopoll);
- blk_iopoll_enable(&phba->iopoll);
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget,
+ be_iopoll);
+ blk_iopoll_enable(&pbe_eq->iopoll);
+ }
}
-
ret = beiscsi_init_irqs(phba);
if (ret < 0) {
shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
@@ -3261,17 +3795,26 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
"Failed to hwi_enable_intr\n");
goto free_ctrlr;
}
-
SE_DEBUG(DBG_LVL_8, "\n\n\n SUCCESS - DRIVER LOADED \n\n\n");
return 0;
free_ctrlr:
- if (phba->pcidev->irq)
- free_irq(phba->pcidev->irq, phba);
+ if (phba->msix_enabled) {
+ for (i = 0; i <= phba->num_cpus; i++) {
+ msix_vec = phba->msix_entries[i].vector;
+ free_irq(msix_vec, &phwi_context->be_eq[i]);
+ }
+ } else
+ if (phba->pcidev->irq)
+ free_irq(phba->pcidev->irq, phba);
+ pci_disable_msix(phba->pcidev);
free_blkenbld:
destroy_workqueue(phba->wq);
if (blk_iopoll_enabled)
- blk_iopoll_disable(&phba->iopoll);
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ blk_iopoll_disable(&pbe_eq->iopoll);
+ }
free_twq:
beiscsi_clean_port(phba);
beiscsi_free_mem(phba);
@@ -3316,7 +3859,7 @@ struct iscsi_transport beiscsi_iscsi_transport = {
ISCSI_USERNAME | ISCSI_PASSWORD |
ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN |
ISCSI_FAST_ABORT | ISCSI_ABORT_TMO |
- ISCSI_LU_RESET_TMO |
+ ISCSI_LU_RESET_TMO | ISCSI_TGT_RESET_TMO |
ISCSI_PING_TMO | ISCSI_RECV_TMO |
ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME,
.host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS |
@@ -3351,6 +3894,7 @@ static struct pci_driver beiscsi_pci_driver = {
.id_table = beiscsi_pci_id_table
};
+
static int __init beiscsi_module_init(void)
{
int ret;
@@ -3373,6 +3917,7 @@ static int __init beiscsi_module_init(void)
"beiscsi pci driver.\n");
goto unregister_iscsi_transport;
}
+ ring_mode = 0;
return 0;
unregister_iscsi_transport:
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 53c9b70ac7ac..25e6b208b771 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -21,11 +21,9 @@
#ifndef _BEISCSI_MAIN_
#define _BEISCSI_MAIN_
-
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/in.h>
-#include <linux/blk-iopoll.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
@@ -35,12 +33,8 @@
#include <scsi/scsi_transport_iscsi.h>
#include "be.h"
-
-
-
#define DRV_NAME "be2iscsi"
#define BUILD_STR "2.0.527.0"
-
#define BE_NAME "ServerEngines BladeEngine2" \
"Linux iSCSI Driver version" BUILD_STR
#define DRV_DESC BE_NAME " " "Driver"
@@ -49,6 +43,8 @@
#define BE_DEVICE_ID1 0x212
#define OC_DEVICE_ID1 0x702
#define OC_DEVICE_ID2 0x703
+#define OC_DEVICE_ID3 0x712
+#define OC_DEVICE_ID4 0x222
#define BE2_MAX_SESSIONS 64
#define BE2_CMDS_PER_CXN 128
@@ -63,6 +59,7 @@
#define BE2_IO_DEPTH \
(BE2_MAX_ICDS / 2 - (BE2_LOGOUTS + BE2_TMFS + BE2_NOPOUT_REQ))
+#define MAX_CPUS 31
#define BEISCSI_SGLIST_ELEMENTS BE2_SGE
#define BEISCSI_MAX_CMNDS 1024 /* Max IO's per Ctrlr sht->can_queue */
@@ -79,7 +76,7 @@
#define BE_SENSE_INFO_SIZE 258
#define BE_ISCSI_PDU_HEADER_SIZE 64
#define BE_MIN_MEM_SIZE 16384
-
+#define MAX_CMD_SZ 65536
#define IIOC_SCSI_DATA 0x05 /* Write Operation */
#define DBG_LVL 0x00000001
@@ -100,6 +97,8 @@ do { \
} \
} while (0);
+#define BE_ADAPTER_UP 0x00000000
+#define BE_ADAPTER_LINK_DOWN 0x00000001
/**
* hardware needs the async PDU buffers to be posted in multiples of 8
* So have atleast 8 of them by default
@@ -160,21 +159,19 @@ do { \
enum be_mem_enum {
HWI_MEM_ADDN_CONTEXT,
- HWI_MEM_CQ,
- HWI_MEM_EQ,
HWI_MEM_WRB,
HWI_MEM_WRBH,
- HWI_MEM_SGLH, /* 5 */
+ HWI_MEM_SGLH,
HWI_MEM_SGE,
- HWI_MEM_ASYNC_HEADER_BUF,
+ HWI_MEM_ASYNC_HEADER_BUF, /* 5 */
HWI_MEM_ASYNC_DATA_BUF,
HWI_MEM_ASYNC_HEADER_RING,
- HWI_MEM_ASYNC_DATA_RING, /* 10 */
+ HWI_MEM_ASYNC_DATA_RING,
HWI_MEM_ASYNC_HEADER_HANDLE,
- HWI_MEM_ASYNC_DATA_HANDLE,
+ HWI_MEM_ASYNC_DATA_HANDLE, /* 10 */
HWI_MEM_ASYNC_PDU_CONTEXT,
ISCSI_MEM_GLOBAL_HEADER,
- SE_MEM_MAX /* 15 */
+ SE_MEM_MAX
};
struct be_bus_address32 {
@@ -212,6 +209,9 @@ struct be_mem_descriptor {
struct sgl_handle {
unsigned int sgl_index;
+ unsigned int type;
+ unsigned int cid;
+ struct iscsi_task *task;
struct iscsi_sge *pfrag;
};
@@ -274,13 +274,17 @@ struct beiscsi_hba {
struct pci_dev *pcidev;
unsigned int state;
unsigned short asic_revision;
- struct blk_iopoll iopoll;
+ unsigned int num_cpus;
+ unsigned int nxt_cqid;
+ struct msix_entry msix_entries[MAX_CPUS + 1];
+ bool msix_enabled;
struct be_mem_descriptor *init_mem;
unsigned short io_sgl_alloc_index;
unsigned short io_sgl_free_index;
unsigned short io_sgl_hndl_avbl;
struct sgl_handle **io_sgl_hndl_base;
+ struct sgl_handle **sgl_hndl_array;
unsigned short eh_sgl_alloc_index;
unsigned short eh_sgl_free_index;
@@ -315,6 +319,7 @@ struct beiscsi_hba {
unsigned short cid_alloc;
unsigned short cid_free;
unsigned short avlbl_cids;
+ unsigned short iscsi_features;
spinlock_t cid_lock;
} fw_config;
@@ -343,6 +348,7 @@ struct beiscsi_conn {
unsigned short login_in_progress;
struct sgl_handle *plogin_sgl_handle;
struct beiscsi_session *beiscsi_sess;
+ struct iscsi_task *task;
};
/* This structure is used by the chip */
@@ -390,7 +396,7 @@ struct beiscsi_io_task {
unsigned int flags;
unsigned short cid;
unsigned short header_len;
-
+ itt_t libiscsi_itt;
struct be_cmd_bhs *cmd_bhs;
struct be_bus_address bhs_pa;
unsigned short bhs_len;
@@ -599,7 +605,6 @@ struct amap_cq_db {
void beiscsi_process_eq(struct beiscsi_hba *phba);
-
struct iscsi_wrb {
u32 dw[16];
} __packed;
@@ -820,10 +825,12 @@ struct wrb_handle {
};
struct hwi_context_memory {
- struct be_eq_obj be_eq;
- struct be_queue_info be_cq;
- struct be_queue_info be_mcc_cq;
- struct be_queue_info be_mcc;
+ /* Adaptive interrupt coalescing (AIC) info */
+ u16 min_eqd; /* in usecs */
+ u16 max_eqd; /* in usecs */
+ u16 cur_eqd; /* in usecs */
+ struct be_eq_obj be_eq[MAX_CPUS];
+ struct be_queue_info be_cq[MAX_CPUS];
struct be_queue_info be_def_hdrq;
struct be_queue_info be_def_dataq;
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 12e644fc746e..79c2bd525a84 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -35,7 +35,6 @@ unsigned char mgmt_get_fw_config(struct be_ctrl_info *ctrl,
be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
OPCODE_COMMON_QUERY_FIRMWARE_CONFIG, sizeof(*req));
-
status = be_mbox_notify(ctrl);
if (!status) {
struct be_fw_cfg *pfw_cfg;
@@ -58,7 +57,8 @@ unsigned char mgmt_get_fw_config(struct be_ctrl_info *ctrl,
return status;
}
-unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl)
+unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba)
{
struct be_dma_mem nonemb_cmd;
struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
@@ -85,7 +85,6 @@ unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl)
sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
sge->len = cpu_to_le32(nonemb_cmd.size);
-
status = be_mbox_notify(ctrl);
if (!status) {
struct be_mgmt_controller_attributes_resp *resp = nonemb_cmd.va;
@@ -95,21 +94,25 @@ unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl)
resp->params.hba_attribs.firmware_version_string);
SE_DEBUG(DBG_LVL_8,
"Developer Build, not performing version check...\n");
-
+ phba->fw_config.iscsi_features =
+ resp->params.hba_attribs.iscsi_features;
+ SE_DEBUG(DBG_LVL_8, " phba->fw_config.iscsi_features = %d\n",
+ phba->fw_config.iscsi_features);
} else
SE_DEBUG(DBG_LVL_1, " Failed in mgmt_check_supported_fw\n");
+ spin_unlock(&ctrl->mbox_lock);
if (nonemb_cmd.va)
pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
nonemb_cmd.va, nonemb_cmd.dma);
- spin_unlock(&ctrl->mbox_lock);
return status;
}
+
unsigned char mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute)
{
struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_mcc_wrb *wrb = wrb_from_mccq(phba);
struct iscsi_cleanup_req *req = embedded_payload(wrb);
int status = 0;
@@ -124,7 +127,7 @@ unsigned char mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute)
req->hdr_ring_id = 0;
req->data_ring_id = 0;
- status = be_mbox_notify(ctrl);
+ status = be_mcc_notify_wait(phba);
if (status)
shost_printk(KERN_WARNING, phba->shost,
" mgmt_epfw_cleanup , FAILED\n");
@@ -137,7 +140,7 @@ unsigned char mgmt_invalidate_icds(struct beiscsi_hba *phba,
{
struct be_dma_mem nonemb_cmd;
struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_mcc_wrb *wrb = wrb_from_mccq(phba);
struct be_sge *sge = nonembedded_sgl(wrb);
struct invalidate_commands_params_in *req;
int status = 0;
@@ -169,7 +172,7 @@ unsigned char mgmt_invalidate_icds(struct beiscsi_hba *phba,
sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
sge->len = cpu_to_le32(nonemb_cmd.size);
- status = be_mbox_notify(ctrl);
+ status = be_mcc_notify_wait(phba);
if (status)
SE_DEBUG(DBG_LVL_1, "ICDS Invalidation Failed\n");
spin_unlock(&ctrl->mbox_lock);
@@ -186,7 +189,7 @@ unsigned char mgmt_invalidate_connection(struct beiscsi_hba *phba,
unsigned short savecfg_flag)
{
struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_mcc_wrb *wrb = wrb_from_mccq(phba);
struct iscsi_invalidate_connection_params_in *req =
embedded_payload(wrb);
int status = 0;
@@ -205,7 +208,7 @@ unsigned char mgmt_invalidate_connection(struct beiscsi_hba *phba,
else
req->cleanup_type = CMD_ISCSI_CONNECTION_INVALIDATE;
req->save_cfg = savecfg_flag;
- status = be_mbox_notify(ctrl);
+ status = be_mcc_notify_wait(phba);
if (status)
SE_DEBUG(DBG_LVL_1, "Invalidation Failed\n");
@@ -217,7 +220,7 @@ unsigned char mgmt_upload_connection(struct beiscsi_hba *phba,
unsigned short cid, unsigned int upload_flag)
{
struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_mcc_wrb *wrb = wrb_from_mccq(phba);
struct tcp_upload_params_in *req = embedded_payload(wrb);
int status = 0;
@@ -229,7 +232,7 @@ unsigned char mgmt_upload_connection(struct beiscsi_hba *phba,
OPCODE_COMMON_TCP_UPLOAD, sizeof(*req));
req->id = (unsigned short)cid;
req->upload_type = (unsigned char)upload_flag;
- status = be_mbox_notify(ctrl);
+ status = be_mcc_notify_wait(phba);
if (status)
SE_DEBUG(DBG_LVL_1, "mgmt_upload_connection Failed\n");
spin_unlock(&ctrl->mbox_lock);
@@ -245,13 +248,14 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
struct sockaddr_in *daddr_in = (struct sockaddr_in *)dst_addr;
struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;
struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+ struct be_mcc_wrb *wrb = wrb_from_mccq(phba);
struct tcp_connect_and_offload_in *req = embedded_payload(wrb);
unsigned short def_hdr_id;
unsigned short def_data_id;
struct phys_addr template_address = { 0, 0 };
struct phys_addr *ptemplate_address;
int status = 0;
+ unsigned int i;
unsigned short cid = beiscsi_ep->ep_cid;
phwi_ctrlr = phba->phwi_ctrlr;
@@ -296,14 +300,18 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
}
req->cid = cid;
- req->cq_id = phwi_context->be_cq.id;
+ i = phba->nxt_cqid++;
+ if (phba->nxt_cqid == phba->num_cpus)
+ phba->nxt_cqid = 0;
+ req->cq_id = phwi_context->be_cq[i].id;
+ SE_DEBUG(DBG_LVL_8, "i=%d cq_id=%d \n", i, req->cq_id);
req->defq_id = def_hdr_id;
req->hdr_ring_id = def_hdr_id;
req->data_ring_id = def_data_id;
req->do_offload = 1;
req->dataout_template_pa.lo = ptemplate_address->lo;
req->dataout_template_pa.hi = ptemplate_address->hi;
- status = be_mbox_notify(ctrl);
+ status = be_mcc_notify_wait(phba);
if (!status) {
struct iscsi_endpoint *ep;
struct tcp_connect_and_offload_out *ptcpcnct_out =
@@ -311,7 +319,7 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
ep = phba->ep_array[ptcpcnct_out->cid];
beiscsi_ep = ep->dd_data;
- beiscsi_ep->fw_handle = 0;
+ beiscsi_ep->fw_handle = ptcpcnct_out->connection_handle;
beiscsi_ep->cid_vld = 1;
SE_DEBUG(DBG_LVL_8, "mgmt_open_connection Success\n");
} else
@@ -319,3 +327,30 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
spin_unlock(&ctrl->mbox_lock);
return status;
}
+
+int be_cmd_get_mac_addr(struct beiscsi_hba *phba, u8 *mac_addr)
+{
+ struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_mcc_wrb *wrb = wrb_from_mccq(phba);
+ struct be_cmd_req_get_mac_addr *req = embedded_payload(wrb);
+ int status;
+
+ SE_DEBUG(DBG_LVL_8, "In be_cmd_get_mac_addr\n");
+ spin_lock(&ctrl->mbox_lock);
+ memset(wrb, 0, sizeof(*wrb));
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+ OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
+ sizeof(*req));
+
+ status = be_mcc_notify_wait(phba);
+ if (!status) {
+ struct be_cmd_resp_get_mac_addr *resp = embedded_payload(wrb);
+
+ memcpy(mac_addr, resp->mac_address, ETH_ALEN);
+ }
+
+ spin_unlock(&ctrl->mbox_lock);
+ return status;
+}
+
diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
index 00e816ee8070..24eaff923f85 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.h
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -175,7 +175,9 @@ struct mgmt_hba_attributes {
u8 phy_port;
u32 firmware_post_status;
u32 hba_mtu[8];
- u32 future_u32[4];
+ u8 iscsi_features;
+ u8 future_u8[3];
+ u32 future_u32[3];
} __packed;
struct mgmt_controller_attributes {
@@ -246,4 +248,8 @@ unsigned char mgmt_invalidate_connection(struct beiscsi_hba *phba,
unsigned short cid,
unsigned short issue_reset,
unsigned short savecfg_flag);
+
+unsigned char mgmt_fw_cmd(struct be_ctrl_info *ctrl,
+ struct beiscsi_hba *phba,
+ char *buf, unsigned int len);
#endif
diff --git a/drivers/scsi/bfa/bfa_cb_ioim_macros.h b/drivers/scsi/bfa/bfa_cb_ioim_macros.h
index 0050c838c358..961fe439daad 100644
--- a/drivers/scsi/bfa/bfa_cb_ioim_macros.h
+++ b/drivers/scsi/bfa/bfa_cb_ioim_macros.h
@@ -51,7 +51,7 @@ bfad_int_to_lun(u32 luno)
lun.bfa_lun = 0;
lun.scsi_lun[0] = bfa_os_htons(luno);
- return (lun.bfa_lun);
+ return lun.bfa_lun;
}
/**
@@ -68,7 +68,7 @@ bfa_cb_ioim_get_cdb(struct bfad_ioim_s *dio)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
- return ((u8 *) cmnd->cmnd);
+ return (u8 *) cmnd->cmnd;
}
/**
@@ -97,7 +97,7 @@ bfa_cb_ioim_get_size(struct bfad_ioim_s *dio)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
- return (scsi_bufflen(cmnd));
+ return scsi_bufflen(cmnd);
}
/**
@@ -129,7 +129,7 @@ bfa_cb_ioim_get_sgaddr(struct bfad_ioim_s *dio, int sgeid)
sge = (struct scatterlist *)scsi_sglist(cmnd) + sgeid;
addr = (u64) sg_dma_address(sge);
- return (*(union bfi_addr_u *) &addr);
+ return *((union bfi_addr_u *) &addr);
}
static inline u32
@@ -197,7 +197,7 @@ bfa_cb_ioim_get_cdblen(struct bfad_ioim_s *dio)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio;
- return (cmnd->cmd_len);
+ return cmnd->cmd_len;
}
diff --git a/drivers/scsi/bfa/bfa_cee.c b/drivers/scsi/bfa/bfa_cee.c
index 7a959c34e789..2b917792c6bc 100644
--- a/drivers/scsi/bfa/bfa_cee.c
+++ b/drivers/scsi/bfa/bfa_cee.c
@@ -228,7 +228,7 @@ bfa_cee_reset_stats_isr(struct bfa_cee_s *cee, bfa_status_t status)
u32
bfa_cee_meminfo(void)
{
- return (bfa_cee_attr_meminfo() + bfa_cee_stats_meminfo());
+ return bfa_cee_attr_meminfo() + bfa_cee_stats_meminfo();
}
/**
diff --git a/drivers/scsi/bfa/bfa_csdebug.c b/drivers/scsi/bfa/bfa_csdebug.c
index 1b71d349451a..caeb1143a4e6 100644
--- a/drivers/scsi/bfa/bfa_csdebug.c
+++ b/drivers/scsi/bfa/bfa_csdebug.c
@@ -47,12 +47,12 @@ bfa_q_is_on_q_func(struct list_head *q, struct list_head *qe)
tqe = bfa_q_next(q);
while (tqe != q) {
if (tqe == qe)
- return (1);
+ return 1;
tqe = bfa_q_next(tqe);
if (tqe == NULL)
break;
}
- return (0);
+ return 0;
}
diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c
index 401babe3494e..790c945aeae6 100644
--- a/drivers/scsi/bfa/bfa_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcpim.c
@@ -131,7 +131,7 @@ bfa_fcpim_path_tov_get(struct bfa_s *bfa)
{
struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
- return (fcpim->path_tov / 1000);
+ return fcpim->path_tov / 1000;
}
bfa_status_t
@@ -169,7 +169,7 @@ bfa_fcpim_qdepth_get(struct bfa_s *bfa)
{
struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
- return (fcpim->q_depth);
+ return fcpim->q_depth;
}
diff --git a/drivers/scsi/bfa/bfa_fcpim_priv.h b/drivers/scsi/bfa/bfa_fcpim_priv.h
index 153206cfb37a..5cf418460f75 100644
--- a/drivers/scsi/bfa/bfa_fcpim_priv.h
+++ b/drivers/scsi/bfa/bfa_fcpim_priv.h
@@ -35,7 +35,7 @@
#define BFA_FCPIM_PATHTOV_MAX (90 * 1000) /* in millisecs */
#define bfa_fcpim_stats(__fcpim, __stats) \
- (__fcpim)->stats.__stats ++
+ ((__fcpim)->stats.__stats++)
struct bfa_fcpim_mod_s {
struct bfa_s *bfa;
@@ -143,7 +143,7 @@ struct bfa_itnim_s {
struct bfa_itnim_hal_stats_s stats;
};
-#define bfa_itnim_is_online(_itnim) (_itnim)->is_online
+#define bfa_itnim_is_online(_itnim) ((_itnim)->is_online)
#define BFA_FCPIM_MOD(_hal) (&(_hal)->modules.fcpim_mod)
#define BFA_IOIM_FROM_TAG(_fcpim, _iotag) \
(&fcpim->ioim_arr[_iotag])
diff --git a/drivers/scsi/bfa/bfa_fcport.c b/drivers/scsi/bfa/bfa_fcport.c
index 992435987deb..aef648b55dfc 100644
--- a/drivers/scsi/bfa/bfa_fcport.c
+++ b/drivers/scsi/bfa/bfa_fcport.c
@@ -388,32 +388,29 @@ bfa_pport_sm_linkup(struct bfa_pport_s *pport, enum bfa_pport_sm_event event)
bfa_pport_callback(pport, BFA_PPORT_LINKDOWN);
bfa_plog_str(pport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_ST_CHANGE, 0, "Port Linkdown");
- if (BFA_PORT_IS_DISABLED(pport->bfa)) {
+ if (BFA_PORT_IS_DISABLED(pport->bfa))
bfa_pport_aen_post(pport, BFA_PORT_AEN_OFFLINE);
- } else {
+ else
bfa_pport_aen_post(pport, BFA_PORT_AEN_DISCONNECT);
- }
break;
case BFA_PPORT_SM_STOP:
bfa_sm_set_state(pport, bfa_pport_sm_stopped);
bfa_pport_reset_linkinfo(pport);
- if (BFA_PORT_IS_DISABLED(pport->bfa)) {
+ if (BFA_PORT_IS_DISABLED(pport->bfa))
bfa_pport_aen_post(pport, BFA_PORT_AEN_OFFLINE);
- } else {
+ else
bfa_pport_aen_post(pport, BFA_PORT_AEN_DISCONNECT);
- }
break;
case BFA_PPORT_SM_HWFAIL:
bfa_sm_set_state(pport, bfa_pport_sm_iocdown);
bfa_pport_reset_linkinfo(pport);
bfa_pport_callback(pport, BFA_PPORT_LINKDOWN);
- if (BFA_PORT_IS_DISABLED(pport->bfa)) {
+ if (BFA_PORT_IS_DISABLED(pport->bfa))
bfa_pport_aen_post(pport, BFA_PORT_AEN_OFFLINE);
- } else {
+ else
bfa_pport_aen_post(pport, BFA_PORT_AEN_DISCONNECT);
- }
break;
default:
@@ -999,10 +996,10 @@ bfa_pport_enable(struct bfa_s *bfa)
struct bfa_pport_s *pport = BFA_PORT_MOD(bfa);
if (pport->diag_busy)
- return (BFA_STATUS_DIAG_BUSY);
+ return BFA_STATUS_DIAG_BUSY;
else if (bfa_sm_cmp_state
(BFA_PORT_MOD(bfa), bfa_pport_sm_disabling_qwait))
- return (BFA_STATUS_DEVBUSY);
+ return BFA_STATUS_DEVBUSY;
bfa_sm_send_event(BFA_PORT_MOD(bfa), BFA_PPORT_SM_ENABLE);
return BFA_STATUS_OK;
@@ -1032,7 +1029,7 @@ bfa_pport_cfg_speed(struct bfa_s *bfa, enum bfa_pport_speed speed)
pport->cfg.speed = speed;
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
/**
@@ -1068,7 +1065,7 @@ bfa_pport_cfg_topology(struct bfa_s *bfa, enum bfa_pport_topology topology)
}
pport->cfg.topology = topology;
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
/**
@@ -1094,7 +1091,7 @@ bfa_pport_cfg_hardalpa(struct bfa_s *bfa, u8 alpa)
pport->cfg.cfg_hardalpa = BFA_TRUE;
pport->cfg.hardalpa = alpa;
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
bfa_status_t
@@ -1106,7 +1103,7 @@ bfa_pport_clr_hardalpa(struct bfa_s *bfa)
bfa_trc(bfa, pport->cfg.hardalpa);
pport->cfg.cfg_hardalpa = BFA_FALSE;
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
bfa_boolean_t
@@ -1138,16 +1135,16 @@ bfa_pport_cfg_maxfrsize(struct bfa_s *bfa, u16 maxfrsize)
* with in range
*/
if ((maxfrsize > FC_MAX_PDUSZ) || (maxfrsize < FC_MIN_PDUSZ))
- return (BFA_STATUS_INVLD_DFSZ);
+ return BFA_STATUS_INVLD_DFSZ;
/*
* power of 2, if not the max frame size of 2112
*/
if ((maxfrsize != FC_MAX_PDUSZ) && (maxfrsize & (maxfrsize - 1)))
- return (BFA_STATUS_INVLD_DFSZ);
+ return BFA_STATUS_INVLD_DFSZ;
pport->cfg.maxfrsize = maxfrsize;
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
u16
@@ -1415,7 +1412,7 @@ bfa_pport_get_stats(struct bfa_s *bfa, union bfa_pport_stats_u *stats,
if (port->stats_busy) {
bfa_trc(bfa, port->stats_busy);
- return (BFA_STATUS_DEVBUSY);
+ return BFA_STATUS_DEVBUSY;
}
port->stats_busy = BFA_TRUE;
@@ -1427,7 +1424,7 @@ bfa_pport_get_stats(struct bfa_s *bfa, union bfa_pport_stats_u *stats,
bfa_timer_start(bfa, &port->timer, bfa_port_stats_timeout, port,
BFA_PORT_STATS_TOV);
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
bfa_status_t
@@ -1437,7 +1434,7 @@ bfa_pport_clear_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn, void *cbarg)
if (port->stats_busy) {
bfa_trc(bfa, port->stats_busy);
- return (BFA_STATUS_DEVBUSY);
+ return BFA_STATUS_DEVBUSY;
}
port->stats_busy = BFA_TRUE;
@@ -1448,7 +1445,7 @@ bfa_pport_clear_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn, void *cbarg)
bfa_timer_start(bfa, &port->timer, bfa_port_stats_clr_timeout, port,
BFA_PORT_STATS_TOV);
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
bfa_status_t
@@ -1515,7 +1512,7 @@ bfa_pport_get_qos_stats(struct bfa_s *bfa, union bfa_pport_stats_u *stats,
/*
* QoS stats is embedded in port stats
*/
- return (bfa_pport_get_stats(bfa, stats, cbfn, cbarg));
+ return bfa_pport_get_stats(bfa, stats, cbfn, cbarg);
}
bfa_status_t
@@ -1525,7 +1522,7 @@ bfa_pport_clear_qos_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn, void *cbarg)
if (port->stats_busy) {
bfa_trc(bfa, port->stats_busy);
- return (BFA_STATUS_DEVBUSY);
+ return BFA_STATUS_DEVBUSY;
}
port->stats_busy = BFA_TRUE;
@@ -1536,7 +1533,7 @@ bfa_pport_clear_qos_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn, void *cbarg)
bfa_timer_start(bfa, &port->timer, bfa_port_stats_clr_timeout, port,
BFA_PORT_STATS_TOV);
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
/**
@@ -1545,7 +1542,7 @@ bfa_pport_clear_qos_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn, void *cbarg)
bfa_status_t
bfa_pport_trunk_disable(struct bfa_s *bfa)
{
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
bfa_boolean_t
@@ -1562,8 +1559,8 @@ bfa_pport_is_disabled(struct bfa_s *bfa)
{
struct bfa_pport_s *port = BFA_PORT_MOD(bfa);
- return (bfa_sm_to_state(hal_pport_sm_table, port->sm) ==
- BFA_PPORT_ST_DISABLED);
+ return bfa_sm_to_state(hal_pport_sm_table, port->sm) ==
+ BFA_PPORT_ST_DISABLED;
}
@@ -1572,7 +1569,7 @@ bfa_pport_is_ratelim(struct bfa_s *bfa)
{
struct bfa_pport_s *pport = BFA_PORT_MOD(bfa);
-return (pport->cfg.ratelimit ? BFA_TRUE : BFA_FALSE);
+ return pport->cfg.ratelimit ? BFA_TRUE : BFA_FALSE;
}
@@ -1620,7 +1617,7 @@ bfa_pport_cfg_ratelim_speed(struct bfa_s *bfa, enum bfa_pport_speed speed)
pport->cfg.trl_def_speed = speed;
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
/**
@@ -1632,7 +1629,7 @@ bfa_pport_get_ratelim_speed(struct bfa_s *bfa)
struct bfa_pport_s *pport = BFA_PORT_MOD(bfa);
bfa_trc(bfa, pport->cfg.trl_def_speed);
- return (pport->cfg.trl_def_speed);
+ return pport->cfg.trl_def_speed;
}
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index 8975ed041dc0..c7ab257f10a7 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -568,11 +568,10 @@ bfa_fcs_port_offline_actions(struct bfa_fcs_port_s *port)
__port_action[port->fabric->fab_type].offline(port);
- if (bfa_fcs_fabric_is_online(port->fabric) == BFA_TRUE) {
+ if (bfa_fcs_fabric_is_online(port->fabric) == BFA_TRUE)
bfa_fcs_port_aen_post(port, BFA_LPORT_AEN_DISCONNECT);
- } else {
+ else
bfa_fcs_port_aen_post(port, BFA_LPORT_AEN_OFFLINE);
- }
bfa_fcb_port_offline(port->fcs->bfad, port->port_cfg.roles,
port->fabric->vf_drv,
(port->vport == NULL) ? NULL : port->vport->vport_drv);
@@ -777,7 +776,7 @@ bfa_fcs_port_get_rport_by_pwwn(struct bfa_fcs_port_s *port, wwn_t pwwn)
}
bfa_trc(port->fcs, pwwn);
- return (NULL);
+ return NULL;
}
/**
@@ -796,7 +795,7 @@ bfa_fcs_port_get_rport_by_nwwn(struct bfa_fcs_port_s *port, wwn_t nwwn)
}
bfa_trc(port->fcs, nwwn);
- return (NULL);
+ return NULL;
}
/**
@@ -870,7 +869,7 @@ bfa_fcs_port_lip(struct bfa_fcs_port_s *port)
bfa_boolean_t
bfa_fcs_port_is_online(struct bfa_fcs_port_s *port)
{
- return (bfa_sm_cmp_state(port, bfa_fcs_port_sm_online));
+ return bfa_sm_cmp_state(port, bfa_fcs_port_sm_online);
}
/**
diff --git a/drivers/scsi/bfa/bfa_fcxp.c b/drivers/scsi/bfa/bfa_fcxp.c
index 4754a0e9006a..cf0ad6782686 100644
--- a/drivers/scsi/bfa/bfa_fcxp.c
+++ b/drivers/scsi/bfa/bfa_fcxp.c
@@ -199,7 +199,7 @@ bfa_fcxp_get(struct bfa_fcxp_mod_s *fm)
if (fcxp)
list_add_tail(&fcxp->qe, &fm->fcxp_active_q);
- return (fcxp);
+ return fcxp;
}
static void
@@ -503,7 +503,7 @@ bfa_fcxp_alloc(void *caller, struct bfa_s *bfa, int nreq_sgles,
fcxp = bfa_fcxp_get(BFA_FCXP_MOD(bfa));
if (fcxp == NULL)
- return (NULL);
+ return NULL;
bfa_trc(bfa, fcxp->fcxp_tag);
@@ -568,7 +568,7 @@ bfa_fcxp_alloc(void *caller, struct bfa_s *bfa, int nreq_sgles,
}
}
- return (fcxp);
+ return fcxp;
}
/**
@@ -709,7 +709,7 @@ bfa_status_t
bfa_fcxp_abort(struct bfa_fcxp_s *fcxp)
{
bfa_assert(0);
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
void
diff --git a/drivers/scsi/bfa/bfa_intr.c b/drivers/scsi/bfa/bfa_intr.c
index 0ca125712a04..b36540e4ed76 100644
--- a/drivers/scsi/bfa/bfa_intr.c
+++ b/drivers/scsi/bfa/bfa_intr.c
@@ -59,7 +59,7 @@ bfa_intx(struct bfa_s *bfa)
qintr = intr & __HFN_INT_RME_MASK;
bfa_reg_write(bfa->iocfc.bfa_regs.intr_status, qintr);
- for (queue = 0; queue < BFI_IOC_MAX_CQS_ASIC; queue ++) {
+ for (queue = 0; queue < BFI_IOC_MAX_CQS_ASIC; queue++) {
if (intr & (__HFN_INT_RME_Q0 << queue))
bfa_msix_rspq(bfa, queue & (BFI_IOC_MAX_CQS - 1));
}
diff --git a/drivers/scsi/bfa/bfa_intr_priv.h b/drivers/scsi/bfa/bfa_intr_priv.h
index 8ce6e6b105c8..5fc301cf4d1b 100644
--- a/drivers/scsi/bfa/bfa_intr_priv.h
+++ b/drivers/scsi/bfa/bfa_intr_priv.h
@@ -26,9 +26,9 @@ void bfa_isr_unhandled(struct bfa_s *bfa, struct bfi_msg_s *m);
void bfa_isr_bind(enum bfi_mclass mc, bfa_isr_func_t isr_func);
-#define bfa_reqq_pi(__bfa, __reqq) (__bfa)->iocfc.req_cq_pi[__reqq]
+#define bfa_reqq_pi(__bfa, __reqq) ((__bfa)->iocfc.req_cq_pi[__reqq])
#define bfa_reqq_ci(__bfa, __reqq) \
- *(u32 *)((__bfa)->iocfc.req_cq_shadow_ci[__reqq].kva)
+ (*(u32 *)((__bfa)->iocfc.req_cq_shadow_ci[__reqq].kva))
#define bfa_reqq_full(__bfa, __reqq) \
(((bfa_reqq_pi(__bfa, __reqq) + 1) & \
@@ -50,14 +50,16 @@ void bfa_isr_bind(enum bfi_mclass mc, bfa_isr_func_t isr_func);
} while (0)
#define bfa_rspq_pi(__bfa, __rspq) \
- *(u32 *)((__bfa)->iocfc.rsp_cq_shadow_pi[__rspq].kva)
+ (*(u32 *)((__bfa)->iocfc.rsp_cq_shadow_pi[__rspq].kva))
-#define bfa_rspq_ci(__bfa, __rspq) (__bfa)->iocfc.rsp_cq_ci[__rspq]
+#define bfa_rspq_ci(__bfa, __rspq) ((__bfa)->iocfc.rsp_cq_ci[__rspq])
#define bfa_rspq_elem(__bfa, __rspq, __ci) \
- &((struct bfi_msg_s *)((__bfa)->iocfc.rsp_cq_ba[__rspq].kva))[__ci]
+ (&((struct bfi_msg_s *)((__bfa)->iocfc.rsp_cq_ba[__rspq].kva))[__ci])
-#define CQ_INCR(__index, __size) \
- (__index)++; (__index) &= ((__size) - 1)
+#define CQ_INCR(__index, __size) do { \
+ (__index)++; \
+ (__index) &= ((__size) - 1); \
+} while (0)
/**
* Queue element to wait for room in request queue. FIFO order is
@@ -94,7 +96,7 @@ bfa_reqq_winit(struct bfa_reqq_wait_s *wqe, void (*qresume) (void *cbarg),
wqe->cbarg = cbarg;
}
-#define bfa_reqq(__bfa, __reqq) &(__bfa)->reqq_waitq[__reqq]
+#define bfa_reqq(__bfa, __reqq) (&(__bfa)->reqq_waitq[__reqq])
/**
* static inline void
diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index 149348934ce3..397d7e9eade5 100644
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -51,7 +51,7 @@ BFA_TRC_FILE(HAL, IOC);
(sizeof(struct bfa_trc_mod_s) - \
BFA_TRC_MAX * sizeof(struct bfa_trc_s)))
#define BFA_DBG_FWTRC_OFF(_fn) (BFI_IOC_TRC_OFF + BFA_DBG_FWTRC_LEN * (_fn))
-#define bfa_ioc_stats(_ioc, _stats) (_ioc)->stats._stats ++
+#define bfa_ioc_stats(_ioc, _stats) ((_ioc)->stats._stats++)
#define BFA_FLASH_CHUNK_NO(off) (off / BFI_FLASH_CHUNK_SZ_WORDS)
#define BFA_FLASH_OFFSET_IN_CHUNK(off) (off % BFI_FLASH_CHUNK_SZ_WORDS)
@@ -1953,8 +1953,8 @@ bfa_ioc_error_isr(struct bfa_ioc_s *ioc)
bfa_boolean_t
bfa_ioc_is_disabled(struct bfa_ioc_s *ioc)
{
- return (bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabling)
- || bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabled));
+ return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabling)
+ || bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabled);
}
/**
@@ -1963,9 +1963,9 @@ bfa_ioc_is_disabled(struct bfa_ioc_s *ioc)
bfa_boolean_t
bfa_ioc_fw_mismatch(struct bfa_ioc_s *ioc)
{
- return (bfa_fsm_cmp_state(ioc, bfa_ioc_sm_reset)
+ return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_reset)
|| bfa_fsm_cmp_state(ioc, bfa_ioc_sm_fwcheck)
- || bfa_fsm_cmp_state(ioc, bfa_ioc_sm_mismatch));
+ || bfa_fsm_cmp_state(ioc, bfa_ioc_sm_mismatch);
}
#define bfa_ioc_state_disabled(__sm) \
diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
index 58efd4b13143..7c30f05ab137 100644
--- a/drivers/scsi/bfa/bfa_ioc.h
+++ b/drivers/scsi/bfa/bfa_ioc.h
@@ -179,16 +179,16 @@ struct bfa_ioc_s {
struct bfa_ioc_mbox_mod_s mbox_mod;
};
-#define bfa_ioc_pcifn(__ioc) (__ioc)->pcidev.pci_func
-#define bfa_ioc_devid(__ioc) (__ioc)->pcidev.device_id
-#define bfa_ioc_bar0(__ioc) (__ioc)->pcidev.pci_bar_kva
+#define bfa_ioc_pcifn(__ioc) ((__ioc)->pcidev.pci_func)
+#define bfa_ioc_devid(__ioc) ((__ioc)->pcidev.device_id)
+#define bfa_ioc_bar0(__ioc) ((__ioc)->pcidev.pci_bar_kva)
#define bfa_ioc_portid(__ioc) ((__ioc)->port_id)
#define bfa_ioc_fetch_stats(__ioc, __stats) \
- ((__stats)->drv_stats) = (__ioc)->stats
+ (((__stats)->drv_stats) = (__ioc)->stats)
#define bfa_ioc_clr_stats(__ioc) \
bfa_os_memset(&(__ioc)->stats, 0, sizeof((__ioc)->stats))
-#define bfa_ioc_maxfrsize(__ioc) (__ioc)->attr->maxfrsize
-#define bfa_ioc_rx_bbcredit(__ioc) (__ioc)->attr->rx_bbcredit
+#define bfa_ioc_maxfrsize(__ioc) ((__ioc)->attr->maxfrsize)
+#define bfa_ioc_rx_bbcredit(__ioc) ((__ioc)->attr->rx_bbcredit)
#define bfa_ioc_speed_sup(__ioc) \
BFI_ADAPTER_GETP(SPEED, (__ioc)->attr->adapter_prop)
diff --git a/drivers/scsi/bfa/bfa_iocfc.c b/drivers/scsi/bfa/bfa_iocfc.c
index 12350b022d63..d7ab792a9e54 100644
--- a/drivers/scsi/bfa/bfa_iocfc.c
+++ b/drivers/scsi/bfa/bfa_iocfc.c
@@ -794,7 +794,7 @@ bfa_iocfc_get_stats(struct bfa_s *bfa, struct bfa_iocfc_stats_s *stats,
if (iocfc->stats_busy) {
bfa_trc(bfa, iocfc->stats_busy);
- return (BFA_STATUS_DEVBUSY);
+ return BFA_STATUS_DEVBUSY;
}
iocfc->stats_busy = BFA_TRUE;
@@ -804,7 +804,7 @@ bfa_iocfc_get_stats(struct bfa_s *bfa, struct bfa_iocfc_stats_s *stats,
bfa_iocfc_stats_query(bfa);
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
bfa_status_t
@@ -814,7 +814,7 @@ bfa_iocfc_clear_stats(struct bfa_s *bfa, bfa_cb_ioc_t cbfn, void *cbarg)
if (iocfc->stats_busy) {
bfa_trc(bfa, iocfc->stats_busy);
- return (BFA_STATUS_DEVBUSY);
+ return BFA_STATUS_DEVBUSY;
}
iocfc->stats_busy = BFA_TRUE;
@@ -822,7 +822,7 @@ bfa_iocfc_clear_stats(struct bfa_s *bfa, bfa_cb_ioc_t cbfn, void *cbarg)
iocfc->stats_cbarg = cbarg;
bfa_iocfc_stats_clear(bfa);
- return (BFA_STATUS_OK);
+ return BFA_STATUS_OK;
}
/**
diff --git a/drivers/scsi/bfa/bfa_iocfc.h b/drivers/scsi/bfa/bfa_iocfc.h
index 7ad177ed4cfc..ce9a830a4207 100644
--- a/drivers/scsi/bfa/bfa_iocfc.h
+++ b/drivers/scsi/bfa/bfa_iocfc.h
@@ -107,13 +107,13 @@ struct bfa_iocfc_s {
#define bfa_lpuid(__bfa) bfa_ioc_portid(&(__bfa)->ioc)
#define bfa_msix_init(__bfa, __nvecs) \
- (__bfa)->iocfc.hwif.hw_msix_init(__bfa, __nvecs)
+ ((__bfa)->iocfc.hwif.hw_msix_init(__bfa, __nvecs))
#define bfa_msix_install(__bfa) \
- (__bfa)->iocfc.hwif.hw_msix_install(__bfa)
+ ((__bfa)->iocfc.hwif.hw_msix_install(__bfa))
#define bfa_msix_uninstall(__bfa) \
- (__bfa)->iocfc.hwif.hw_msix_uninstall(__bfa)
+ ((__bfa)->iocfc.hwif.hw_msix_uninstall(__bfa))
#define bfa_isr_mode_set(__bfa, __msix) \
- (__bfa)->iocfc.hwif.hw_isr_mode_set(__bfa, __msix)
+ ((__bfa)->iocfc.hwif.hw_isr_mode_set(__bfa, __msix))
#define bfa_msix_getvecs(__bfa, __vecmap, __nvecs, __maxvec) \
(__bfa)->iocfc.hwif.hw_msix_getvecs(__bfa, __vecmap, __nvecs, __maxvec)
diff --git a/drivers/scsi/bfa/bfa_ioim.c b/drivers/scsi/bfa/bfa_ioim.c
index 7ae2552e1e14..f81d359b7089 100644
--- a/drivers/scsi/bfa/bfa_ioim.c
+++ b/drivers/scsi/bfa/bfa_ioim.c
@@ -105,13 +105,13 @@ bfa_ioim_sm_uninit(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
list_del(&ioim->qe);
list_add_tail(&ioim->qe,
- &ioim->fcpim->ioim_comp_q);
+ &ioim->fcpim->ioim_comp_q);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
__bfa_cb_ioim_pathtov, ioim);
} else {
list_del(&ioim->qe);
list_add_tail(&ioim->qe,
- &ioim->itnim->pending_q);
+ &ioim->itnim->pending_q);
}
break;
}
diff --git a/drivers/scsi/bfa/bfa_itnim.c b/drivers/scsi/bfa/bfa_itnim.c
index 4d5c61a4f85c..eabf7d38bd09 100644
--- a/drivers/scsi/bfa/bfa_itnim.c
+++ b/drivers/scsi/bfa/bfa_itnim.c
@@ -1029,7 +1029,7 @@ bfa_itnim_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void *ditn)
bfa_stats(itnim, creates);
bfa_sm_send_event(itnim, BFA_ITNIM_SM_CREATE);
- return (itnim);
+ return itnim;
}
void
@@ -1061,7 +1061,7 @@ bfa_itnim_offline(struct bfa_itnim_s *itnim)
bfa_boolean_t
bfa_itnim_hold_io(struct bfa_itnim_s *itnim)
{
- return (
+ return
itnim->fcpim->path_tov && itnim->iotov_active &&
(bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwcreate) ||
bfa_sm_cmp_state(itnim, bfa_itnim_sm_sler) ||
@@ -1069,7 +1069,7 @@ bfa_itnim_hold_io(struct bfa_itnim_s *itnim)
bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwdelete) ||
bfa_sm_cmp_state(itnim, bfa_itnim_sm_offline) ||
bfa_sm_cmp_state(itnim, bfa_itnim_sm_iocdisable))
-);
+ ;
}
void
diff --git a/drivers/scsi/bfa/bfa_log.c b/drivers/scsi/bfa/bfa_log.c
index c2735e55cf03..e7514016c9c6 100644
--- a/drivers/scsi/bfa/bfa_log.c
+++ b/drivers/scsi/bfa/bfa_log.c
@@ -231,9 +231,9 @@ bfa_log_get_level(struct bfa_log_mod_s *log_mod, int mod_id)
return BFA_LOG_INVALID;
if (log_mod)
- return (log_mod->log_level[mod_id]);
+ return log_mod->log_level[mod_id];
else
- return (bfa_log_info[mod_id].level);
+ return bfa_log_info[mod_id].level;
}
enum bfa_log_severity
diff --git a/drivers/scsi/bfa/bfa_port_priv.h b/drivers/scsi/bfa/bfa_port_priv.h
index 4b97e2759908..51f698a06b6d 100644
--- a/drivers/scsi/bfa/bfa_port_priv.h
+++ b/drivers/scsi/bfa/bfa_port_priv.h
@@ -59,8 +59,8 @@ struct bfa_pport_s {
u8 *stats_kva;
u64 stats_pa;
union bfa_pport_stats_u *stats; /* pport stats */
- u32 mypid : 24;
- u32 rsvd_b : 8;
+ u32 mypid:24;
+ u32 rsvd_b:8;
struct bfa_timer_s timer; /* timer */
union bfa_pport_stats_u *stats_ret;
/* driver stats location */
diff --git a/drivers/scsi/bfa/bfa_rport.c b/drivers/scsi/bfa/bfa_rport.c
index 16da77a8db28..3e1990a74258 100644
--- a/drivers/scsi/bfa/bfa_rport.c
+++ b/drivers/scsi/bfa/bfa_rport.c
@@ -677,7 +677,7 @@ bfa_rport_alloc(struct bfa_rport_mod_s *mod)
if (rport)
list_add_tail(&rport->qe, &mod->rp_active_q);
- return (rport);
+ return rport;
}
static void
@@ -834,7 +834,7 @@ bfa_rport_create(struct bfa_s *bfa, void *rport_drv)
rp = bfa_rport_alloc(BFA_RPORT_MOD(bfa));
if (rp == NULL)
- return (NULL);
+ return NULL;
rp->bfa = bfa;
rp->rport_drv = rport_drv;
@@ -843,7 +843,7 @@ bfa_rport_create(struct bfa_s *bfa, void *rport_drv)
bfa_assert(bfa_sm_cmp_state(rp, bfa_rport_sm_uninit));
bfa_sm_send_event(rp, BFA_RPORT_SM_CREATE);
- return (rp);
+ return rp;
}
void
diff --git a/drivers/scsi/bfa/bfa_tskim.c b/drivers/scsi/bfa/bfa_tskim.c
index 010d40d1e5d3..ff7a4dc0bf3c 100644
--- a/drivers/scsi/bfa/bfa_tskim.c
+++ b/drivers/scsi/bfa/bfa_tskim.c
@@ -23,13 +23,14 @@ BFA_TRC_FILE(HAL, TSKIM);
/**
* task management completion handling
*/
-#define bfa_tskim_qcomp(__tskim, __cbfn) do { \
- bfa_cb_queue((__tskim)->bfa, &(__tskim)->hcb_qe, __cbfn, (__tskim)); \
+#define bfa_tskim_qcomp(__tskim, __cbfn) do { \
+ bfa_cb_queue((__tskim)->bfa, &(__tskim)->hcb_qe, \
+ __cbfn, (__tskim)); \
bfa_tskim_notify_comp(__tskim); \
} while (0)
-#define bfa_tskim_notify_comp(__tskim) do { \
- if ((__tskim)->notify) \
+#define bfa_tskim_notify_comp(__tskim) do { \
+ if ((__tskim)->notify) \
bfa_itnim_tskdone((__tskim)->itnim); \
} while (0)
diff --git a/drivers/scsi/bfa/bfa_uf.c b/drivers/scsi/bfa/bfa_uf.c
index ff5f9deb1b22..4b3c2417d180 100644
--- a/drivers/scsi/bfa/bfa_uf.c
+++ b/drivers/scsi/bfa/bfa_uf.c
@@ -185,7 +185,7 @@ bfa_uf_get(struct bfa_uf_mod_s *uf_mod)
struct bfa_uf_s *uf;
bfa_q_deq(&uf_mod->uf_free_q, &uf);
- return (uf);
+ return uf;
}
static void
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index 6f2be5abf561..b52b773d49d9 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -188,8 +188,8 @@ static struct bfad_port_s *
bfad_get_drv_port(struct bfad_s *bfad, struct bfad_vf_s *vf_drv,
struct bfad_vport_s *vp_drv)
{
- return ((vp_drv) ? (&(vp_drv)->drv_port)
- : ((vf_drv) ? (&(vf_drv)->base_port) : (&(bfad)->pport)));
+ return (vp_drv) ? (&(vp_drv)->drv_port)
+ : ((vf_drv) ? (&(vf_drv)->base_port) : (&(bfad)->pport));
}
struct bfad_port_s *
@@ -716,7 +716,7 @@ bfad_drv_init(struct bfad_s *bfad)
if ((bfad->bfad_flags & BFAD_MSIX_ON)
&& bfad_install_msix_handler(bfad)) {
printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
- __FUNCTION__, bfad->inst_no);
+ __func__, bfad->inst_no);
}
bfad_init_timer(bfad);
diff --git a/drivers/scsi/bfa/bfad_fwimg.c b/drivers/scsi/bfa/bfad_fwimg.c
index bd34b0db2d6b..2ad65f275a92 100644
--- a/drivers/scsi/bfa/bfad_fwimg.c
+++ b/drivers/scsi/bfa/bfad_fwimg.c
@@ -65,10 +65,10 @@ bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
memcpy(*bfi_image, fw->data, fw->size);
*bfi_image_size = fw->size/sizeof(u32);
- return(*bfi_image);
+ return *bfi_image;
error:
- return(NULL);
+ return NULL;
}
u32 *
@@ -78,12 +78,12 @@ bfad_get_firmware_buf(struct pci_dev *pdev)
if (bfi_image_ct_size == 0)
bfad_read_firmware(pdev, &bfi_image_ct,
&bfi_image_ct_size, BFAD_FW_FILE_CT);
- return(bfi_image_ct);
+ return bfi_image_ct;
} else {
if (bfi_image_cb_size == 0)
bfad_read_firmware(pdev, &bfi_image_cb,
&bfi_image_cb_size, BFAD_FW_FILE_CB);
- return(bfi_image_cb);
+ return bfi_image_cb;
}
}
diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index 55d012a9a668..f788c2a0ab07 100644
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -1050,7 +1050,7 @@ bfad_im_itnim_work_handler(struct work_struct *work)
} else {
printk(KERN_WARNING
"%s: itnim %llx is already in online state\n",
- __FUNCTION__,
+ __func__,
bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim));
}
diff --git a/drivers/scsi/bfa/bfad_im_compat.h b/drivers/scsi/bfa/bfad_im_compat.h
index 1d3e74ec338c..b36be15044a4 100644
--- a/drivers/scsi/bfa/bfad_im_compat.h
+++ b/drivers/scsi/bfa/bfad_im_compat.h
@@ -31,7 +31,7 @@ u32 *bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
static inline u32 *
bfad_load_fwimg(struct pci_dev *pdev)
{
- return(bfad_get_firmware_buf(pdev));
+ return bfad_get_firmware_buf(pdev);
}
static inline void
diff --git a/drivers/scsi/bfa/bfad_intr.c b/drivers/scsi/bfa/bfad_intr.c
index f104e029cac9..7de8832f6fee 100644
--- a/drivers/scsi/bfa/bfad_intr.c
+++ b/drivers/scsi/bfa/bfad_intr.c
@@ -23,13 +23,12 @@ BFA_TRC_FILE(LDRV, INTR);
/**
* bfa_isr BFA driver interrupt functions
*/
-irqreturn_t bfad_intx(int irq, void *dev_id);
static int msix_disable;
module_param(msix_disable, int, S_IRUGO | S_IWUSR);
/**
* Line based interrupt handler.
*/
-irqreturn_t
+static irqreturn_t
bfad_intx(int irq, void *dev_id)
{
struct bfad_s *bfad = dev_id;
diff --git a/drivers/scsi/bfa/fabric.c b/drivers/scsi/bfa/fabric.c
index a8b14c47b009..a4b5dd449573 100644
--- a/drivers/scsi/bfa/fabric.c
+++ b/drivers/scsi/bfa/fabric.c
@@ -36,12 +36,12 @@ BFA_TRC_FILE(FCS, FABRIC);
#define BFA_FCS_FABRIC_RETRY_DELAY (2000) /* Milliseconds */
#define BFA_FCS_FABRIC_CLEANUP_DELAY (10000) /* Milliseconds */
-#define bfa_fcs_fabric_set_opertype(__fabric) do { \
- if (bfa_pport_get_topology((__fabric)->fcs->bfa) \
- == BFA_PPORT_TOPOLOGY_P2P) \
- (__fabric)->oper_type = BFA_PPORT_TYPE_NPORT; \
- else \
- (__fabric)->oper_type = BFA_PPORT_TYPE_NLPORT; \
+#define bfa_fcs_fabric_set_opertype(__fabric) do { \
+ if (bfa_pport_get_topology((__fabric)->fcs->bfa) \
+ == BFA_PPORT_TOPOLOGY_P2P) \
+ (__fabric)->oper_type = BFA_PPORT_TYPE_NPORT; \
+ else \
+ (__fabric)->oper_type = BFA_PPORT_TYPE_NLPORT; \
} while (0)
/*
@@ -887,7 +887,7 @@ bfa_fcs_fabric_modsusp(struct bfa_fcs_s *fcs)
bfa_boolean_t
bfa_fcs_fabric_is_loopback(struct bfa_fcs_fabric_s *fabric)
{
- return (bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_loopback));
+ return bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_loopback);
}
enum bfa_pport_type
@@ -974,7 +974,7 @@ bfa_fcs_fabric_port_delete_comp(struct bfa_fcs_fabric_s *fabric)
int
bfa_fcs_fabric_is_online(struct bfa_fcs_fabric_s *fabric)
{
- return (bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_online));
+ return bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_online);
}
@@ -1015,7 +1015,7 @@ bfa_fcs_fabric_vport_lookup(struct bfa_fcs_fabric_s *fabric, wwn_t pwwn)
u16
bfa_fcs_fabric_vport_count(struct bfa_fcs_fabric_s *fabric)
{
- return (fabric->num_vports);
+ return fabric->num_vports;
}
/**
diff --git a/drivers/scsi/bfa/fcbuild.c b/drivers/scsi/bfa/fcbuild.c
index d174706b9caa..fee5456451cb 100644
--- a/drivers/scsi/bfa/fcbuild.c
+++ b/drivers/scsi/bfa/fcbuild.c
@@ -188,14 +188,14 @@ fc_els_rsp_parse(struct fchs_s *fchs, int len)
switch (els_cmd->els_code) {
case FC_ELS_LS_RJT:
if (ls_rjt->reason_code == FC_LS_RJT_RSN_LOGICAL_BUSY)
- return (FC_PARSE_BUSY);
+ return FC_PARSE_BUSY;
else
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
case FC_ELS_ACC:
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
}
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
}
static void
@@ -228,7 +228,7 @@ fc_plogi_x_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
bfa_os_memcpy(&plogi->port_name, &port_name, sizeof(wwn_t));
bfa_os_memcpy(&plogi->node_name, &node_name, sizeof(wwn_t));
- return (sizeof(struct fc_logi_s));
+ return sizeof(struct fc_logi_s);
}
u16
@@ -267,7 +267,7 @@ fc_flogi_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
flogi->csp.npiv_supp = 1; /* @todo. field name is not correct */
vvl_info[0] = bfa_os_htonl(FLOGI_VVL_BRCD);
- return (sizeof(struct fc_logi_s));
+ return sizeof(struct fc_logi_s);
}
u16
@@ -287,7 +287,7 @@ fc_flogi_acc_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
flogi->csp.bbcred = bfa_os_htons(local_bb_credits);
- return (sizeof(struct fc_logi_s));
+ return sizeof(struct fc_logi_s);
}
u16
@@ -306,7 +306,7 @@ fc_fdisc_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
flogi->port_name = port_name;
flogi->node_name = node_name;
- return (sizeof(struct fc_logi_s));
+ return sizeof(struct fc_logi_s);
}
u16
@@ -338,26 +338,26 @@ fc_plogi_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name)
case FC_ELS_LS_RJT:
ls_rjt = (struct fc_ls_rjt_s *) (fchs + 1);
if (ls_rjt->reason_code == FC_LS_RJT_RSN_LOGICAL_BUSY)
- return (FC_PARSE_BUSY);
+ return FC_PARSE_BUSY;
else
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
case FC_ELS_ACC:
plogi = (struct fc_logi_s *) (fchs + 1);
if (len < sizeof(struct fc_logi_s))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (!wwn_is_equal(plogi->port_name, port_name))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (!plogi->class3.class_valid)
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (bfa_os_ntohs(plogi->class3.rxsz) < (FC_MIN_PDUSZ))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
default:
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
}
}
@@ -372,7 +372,7 @@ fc_plogi_parse(struct fchs_s *fchs)
if ((bfa_os_ntohs(plogi->class3.rxsz) < FC_MIN_PDUSZ)
|| (bfa_os_ntohs(plogi->class3.rxsz) > FC_MAX_PDUSZ)
|| (plogi->class3.rxsz == 0))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
return FC_PARSE_OK;
}
@@ -393,7 +393,7 @@ fc_prli_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
prli->parampage.servparams.task_retry_id = 0;
prli->parampage.servparams.confirm = 1;
- return (sizeof(struct fc_prli_s));
+ return sizeof(struct fc_prli_s);
}
u16
@@ -414,41 +414,41 @@ fc_prli_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
prli->parampage.rspcode = FC_PRLI_ACC_XQTD;
- return (sizeof(struct fc_prli_s));
+ return sizeof(struct fc_prli_s);
}
enum fc_parse_status
fc_prli_rsp_parse(struct fc_prli_s *prli, int len)
{
if (len < sizeof(struct fc_prli_s))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (prli->command != FC_ELS_ACC)
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if ((prli->parampage.rspcode != FC_PRLI_ACC_XQTD)
&& (prli->parampage.rspcode != FC_PRLI_ACC_PREDEF_IMG))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (prli->parampage.servparams.target != 1)
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
}
enum fc_parse_status
fc_prli_parse(struct fc_prli_s *prli)
{
if (prli->parampage.type != FC_TYPE_FCP)
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (!prli->parampage.imagepair)
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (!prli->parampage.servparams.initiator)
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
}
u16
@@ -462,7 +462,7 @@ fc_logo_build(struct fchs_s *fchs, struct fc_logo_s *logo, u32 d_id,
logo->nport_id = (s_id);
logo->orig_port_name = port_name;
- return (sizeof(struct fc_logo_s));
+ return sizeof(struct fc_logo_s);
}
static u16
@@ -484,7 +484,7 @@ fc_adisc_x_build(struct fchs_s *fchs, struct fc_adisc_s *adisc, u32 d_id,
adisc->orig_node_name = node_name;
adisc->nport_id = (s_id);
- return (sizeof(struct fc_adisc_s));
+ return sizeof(struct fc_adisc_s);
}
u16
@@ -511,15 +511,15 @@ fc_adisc_rsp_parse(struct fc_adisc_s *adisc, int len, wwn_t port_name,
{
if (len < sizeof(struct fc_adisc_s))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (adisc->els_cmd.els_code != FC_ELS_ACC)
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (!wwn_is_equal(adisc->orig_port_name, port_name))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
}
enum fc_parse_status
@@ -529,14 +529,14 @@ fc_adisc_parse(struct fchs_s *fchs, void *pld, u32 host_dap,
struct fc_adisc_s *adisc = (struct fc_adisc_s *) pld;
if (adisc->els_cmd.els_code != FC_ELS_ACC)
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if ((adisc->nport_id == (host_dap))
&& wwn_is_equal(adisc->orig_port_name, port_name)
&& wwn_is_equal(adisc->orig_node_name, node_name))
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
}
enum fc_parse_status
@@ -550,13 +550,13 @@ fc_pdisc_parse(struct fchs_s *fchs, wwn_t node_name, wwn_t port_name)
if ((bfa_os_ntohs(pdisc->class3.rxsz) <
(FC_MIN_PDUSZ - sizeof(struct fchs_s)))
|| (pdisc->class3.rxsz == 0))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (!wwn_is_equal(pdisc->port_name, port_name))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
if (!wwn_is_equal(pdisc->node_name, node_name))
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
return FC_PARSE_OK;
}
@@ -570,7 +570,7 @@ fc_abts_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
fchs->s_id = (s_id);
fchs->ox_id = bfa_os_htons(ox_id);
- return (sizeof(struct fchs_s));
+ return sizeof(struct fchs_s);
}
enum fc_parse_status
@@ -578,9 +578,9 @@ fc_abts_rsp_parse(struct fchs_s *fchs, int len)
{
if ((fchs->cat_info == FC_CAT_BA_ACC)
|| (fchs->cat_info == FC_CAT_BA_RJT))
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
}
u16
@@ -597,7 +597,7 @@ fc_rrq_build(struct fchs_s *fchs, struct fc_rrq_s *rrq, u32 d_id,
rrq->ox_id = bfa_os_htons(rrq_oxid);
rrq->rx_id = FC_RXID_ANY;
- return (sizeof(struct fc_rrq_s));
+ return sizeof(struct fc_rrq_s);
}
u16
@@ -611,7 +611,7 @@ fc_logo_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
memset(acc, 0, sizeof(struct fc_els_cmd_s));
acc->els_code = FC_ELS_ACC;
- return (sizeof(struct fc_els_cmd_s));
+ return sizeof(struct fc_els_cmd_s);
}
u16
@@ -627,7 +627,7 @@ fc_ls_rjt_build(struct fchs_s *fchs, struct fc_ls_rjt_s *ls_rjt, u32 d_id,
ls_rjt->reason_code_expl = reason_code_expl;
ls_rjt->vendor_unique = 0x00;
- return (sizeof(struct fc_ls_rjt_s));
+ return sizeof(struct fc_ls_rjt_s);
}
u16
@@ -643,7 +643,7 @@ fc_ba_acc_build(struct fchs_s *fchs, struct fc_ba_acc_s *ba_acc, u32 d_id,
ba_acc->ox_id = fchs->ox_id;
ba_acc->rx_id = fchs->rx_id;
- return (sizeof(struct fc_ba_acc_s));
+ return sizeof(struct fc_ba_acc_s);
}
u16
@@ -654,7 +654,7 @@ fc_ls_acc_build(struct fchs_s *fchs, struct fc_els_cmd_s *els_cmd,
memset(els_cmd, 0, sizeof(struct fc_els_cmd_s));
els_cmd->els_code = FC_ELS_ACC;
- return (sizeof(struct fc_els_cmd_s));
+ return sizeof(struct fc_els_cmd_s);
}
int
@@ -696,7 +696,7 @@ fc_tprlo_acc_build(struct fchs_s *fchs, struct fc_tprlo_acc_s *tprlo_acc,
tprlo_acc->tprlo_acc_params[page].orig_process_assc = 0;
tprlo_acc->tprlo_acc_params[page].resp_process_assc = 0;
}
- return (bfa_os_ntohs(tprlo_acc->payload_len));
+ return bfa_os_ntohs(tprlo_acc->payload_len);
}
u16
@@ -721,7 +721,7 @@ fc_prlo_acc_build(struct fchs_s *fchs, struct fc_prlo_acc_s *prlo_acc,
prlo_acc->prlo_acc_params[page].resp_process_assc = 0;
}
- return (bfa_os_ntohs(prlo_acc->payload_len));
+ return bfa_os_ntohs(prlo_acc->payload_len);
}
u16
@@ -735,7 +735,7 @@ fc_rnid_build(struct fchs_s *fchs, struct fc_rnid_cmd_s *rnid, u32 d_id,
rnid->els_cmd.els_code = FC_ELS_RNID;
rnid->node_id_data_format = data_format;
- return (sizeof(struct fc_rnid_cmd_s));
+ return sizeof(struct fc_rnid_cmd_s);
}
u16
@@ -759,10 +759,10 @@ fc_rnid_acc_build(struct fchs_s *fchs, struct fc_rnid_acc_s *rnid_acc,
rnid_acc->specific_id_data_length =
sizeof(struct fc_rnid_general_topology_data_s);
bfa_os_assign(rnid_acc->gen_topology_data, *gen_topo_data);
- return (sizeof(struct fc_rnid_acc_s));
+ return sizeof(struct fc_rnid_acc_s);
} else {
- return (sizeof(struct fc_rnid_acc_s) -
- sizeof(struct fc_rnid_general_topology_data_s));
+ return sizeof(struct fc_rnid_acc_s) -
+ sizeof(struct fc_rnid_general_topology_data_s);
}
}
@@ -776,7 +776,7 @@ fc_rpsc_build(struct fchs_s *fchs, struct fc_rpsc_cmd_s *rpsc, u32 d_id,
memset(rpsc, 0, sizeof(struct fc_rpsc_cmd_s));
rpsc->els_cmd.els_code = FC_ELS_RPSC;
- return (sizeof(struct fc_rpsc_cmd_s));
+ return sizeof(struct fc_rpsc_cmd_s);
}
u16
@@ -797,8 +797,8 @@ fc_rpsc2_build(struct fchs_s *fchs, struct fc_rpsc2_cmd_s *rpsc2,
for (i = 0; i < npids; i++)
rpsc2->pid_list[i].pid = pid_list[i];
- return (sizeof(struct fc_rpsc2_cmd_s) + ((npids - 1) *
- (sizeof(u32))));
+ return sizeof(struct fc_rpsc2_cmd_s) + ((npids - 1) *
+ (sizeof(u32)));
}
u16
@@ -819,7 +819,7 @@ fc_rpsc_acc_build(struct fchs_s *fchs, struct fc_rpsc_acc_s *rpsc_acc,
rpsc_acc->speed_info[0].port_op_speed =
bfa_os_htons(oper_speed->port_op_speed);
- return (sizeof(struct fc_rpsc_acc_s));
+ return sizeof(struct fc_rpsc_acc_s);
}
@@ -856,7 +856,7 @@ fc_pdisc_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
pdisc->port_name = port_name;
pdisc->node_name = node_name;
- return (sizeof(struct fc_logi_s));
+ return sizeof(struct fc_logi_s);
}
u16
@@ -865,21 +865,21 @@ fc_pdisc_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name)
struct fc_logi_s *pdisc = (struct fc_logi_s *) (fchs + 1);
if (len < sizeof(struct fc_logi_s))
- return (FC_PARSE_LEN_INVAL);
+ return FC_PARSE_LEN_INVAL;
if (pdisc->els_cmd.els_code != FC_ELS_ACC)
- return (FC_PARSE_ACC_INVAL);
+ return FC_PARSE_ACC_INVAL;
if (!wwn_is_equal(pdisc->port_name, port_name))
- return (FC_PARSE_PWWN_NOT_EQUAL);
+ return FC_PARSE_PWWN_NOT_EQUAL;
if (!pdisc->class3.class_valid)
- return (FC_PARSE_NWWN_NOT_EQUAL);
+ return FC_PARSE_NWWN_NOT_EQUAL;
if (bfa_os_ntohs(pdisc->class3.rxsz) < (FC_MIN_PDUSZ))
- return (FC_PARSE_RXSZ_INVAL);
+ return FC_PARSE_RXSZ_INVAL;
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
}
u16
@@ -903,7 +903,7 @@ fc_prlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
prlo->prlo_params[page].resp_process_assc = 0;
}
- return (bfa_os_ntohs(prlo->payload_len));
+ return bfa_os_ntohs(prlo->payload_len);
}
u16
@@ -916,7 +916,7 @@ fc_prlo_rsp_parse(struct fchs_s *fchs, int len)
len = len;
if (prlo->command != FC_ELS_ACC)
- return (FC_PARSE_FAILURE);
+ return FC_PARSE_FAILURE;
num_pages = ((bfa_os_ntohs(prlo->payload_len)) - 4) / 16;
@@ -936,7 +936,7 @@ fc_prlo_rsp_parse(struct fchs_s *fchs, int len)
if (prlo->prlo_acc_params[page].resp_process_assc != 0)
return FC_PARSE_FAILURE;
}
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
}
@@ -968,7 +968,7 @@ fc_tprlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
}
}
- return (bfa_os_ntohs(tprlo->payload_len));
+ return bfa_os_ntohs(tprlo->payload_len);
}
u16
@@ -981,23 +981,23 @@ fc_tprlo_rsp_parse(struct fchs_s *fchs, int len)
len = len;
if (tprlo->command != FC_ELS_ACC)
- return (FC_PARSE_ACC_INVAL);
+ return FC_PARSE_ACC_INVAL;
num_pages = (bfa_os_ntohs(tprlo->payload_len) - 4) / 16;
for (page = 0; page < num_pages; page++) {
if (tprlo->tprlo_acc_params[page].type != FC_TYPE_FCP)
- return (FC_PARSE_NOT_FCP);
+ return FC_PARSE_NOT_FCP;
if (tprlo->tprlo_acc_params[page].opa_valid != 0)
- return (FC_PARSE_OPAFLAG_INVAL);
+ return FC_PARSE_OPAFLAG_INVAL;
if (tprlo->tprlo_acc_params[page].rpa_valid != 0)
- return (FC_PARSE_RPAFLAG_INVAL);
+ return FC_PARSE_RPAFLAG_INVAL;
if (tprlo->tprlo_acc_params[page].orig_process_assc != 0)
- return (FC_PARSE_OPA_INVAL);
+ return FC_PARSE_OPA_INVAL;
if (tprlo->tprlo_acc_params[page].resp_process_assc != 0)
- return (FC_PARSE_RPA_INVAL);
+ return FC_PARSE_RPA_INVAL;
}
- return (FC_PARSE_OK);
+ return FC_PARSE_OK;
}
enum fc_parse_status
@@ -1024,7 +1024,7 @@ fc_ba_rjt_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
fchs->cat_info = FC_CAT_BA_RJT;
ba_rjt->reason_code = reason_code;
ba_rjt->reason_expl = reason_expl;
- return (sizeof(struct fc_ba_rjt_s));
+ return sizeof(struct fc_ba_rjt_s);
}
static void
@@ -1073,7 +1073,7 @@ fc_gidpn_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
bfa_os_memset(gidpn, 0, sizeof(struct fcgs_gidpn_req_s));
gidpn->port_name = port_name;
- return (sizeof(struct fcgs_gidpn_req_s) + sizeof(struct ct_hdr_s));
+ return sizeof(struct fcgs_gidpn_req_s) + sizeof(struct ct_hdr_s);
}
u16
@@ -1090,7 +1090,7 @@ fc_gpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
bfa_os_memset(gpnid, 0, sizeof(fcgs_gpnid_req_t));
gpnid->dap = port_id;
- return (sizeof(fcgs_gpnid_req_t) + sizeof(struct ct_hdr_s));
+ return sizeof(fcgs_gpnid_req_t) + sizeof(struct ct_hdr_s);
}
u16
@@ -1107,7 +1107,7 @@ fc_gnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
bfa_os_memset(gnnid, 0, sizeof(fcgs_gnnid_req_t));
gnnid->dap = port_id;
- return (sizeof(fcgs_gnnid_req_t) + sizeof(struct ct_hdr_s));
+ return sizeof(fcgs_gnnid_req_t) + sizeof(struct ct_hdr_s);
}
u16
@@ -1137,7 +1137,7 @@ fc_scr_build(struct fchs_s *fchs, struct fc_scr_s *scr, u8 set_br_reg,
if (set_br_reg)
scr->vu_reg_func = FC_VU_SCR_REG_FUNC_FABRIC_NAME_CHANGE;
- return (sizeof(struct fc_scr_s));
+ return sizeof(struct fc_scr_s);
}
u16
@@ -1157,7 +1157,7 @@ fc_rscn_build(struct fchs_s *fchs, struct fc_rscn_pl_s *rscn, u32 s_id,
rscn->event[0].format = FC_RSCN_FORMAT_PORTID;
rscn->event[0].portid = s_id;
- return (sizeof(struct fc_rscn_pl_s));
+ return sizeof(struct fc_rscn_pl_s);
}
u16
@@ -1188,7 +1188,7 @@ fc_rftid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
rftid->fc4_type[index] |= bfa_os_htonl(type_value);
}
- return (sizeof(struct fcgs_rftid_req_s) + sizeof(struct ct_hdr_s));
+ return sizeof(struct fcgs_rftid_req_s) + sizeof(struct ct_hdr_s);
}
u16
@@ -1210,7 +1210,7 @@ fc_rftid_build_sol(struct fchs_s *fchs, void *pyld, u32 s_id,
bfa_os_memcpy((void *)rftid->fc4_type, (void *)fc4_bitmap,
(bitmap_size < 32 ? bitmap_size : 32));
- return (sizeof(struct fcgs_rftid_req_s) + sizeof(struct ct_hdr_s));
+ return sizeof(struct fcgs_rftid_req_s) + sizeof(struct ct_hdr_s);
}
u16
@@ -1231,7 +1231,7 @@ fc_rffid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
rffid->fc4ftr_bits = fc4_ftrs;
rffid->fc4_type = fc4_type;
- return (sizeof(struct fcgs_rffid_req_s) + sizeof(struct ct_hdr_s));
+ return sizeof(struct fcgs_rffid_req_s) + sizeof(struct ct_hdr_s);
}
u16
@@ -1253,7 +1253,7 @@ fc_rspnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
rspnid->spn_len = (u8) strlen((char *)name);
strncpy((char *)rspnid->spn, (char *)name, rspnid->spn_len);
- return (sizeof(struct fcgs_rspnid_req_s) + sizeof(struct ct_hdr_s));
+ return sizeof(struct fcgs_rspnid_req_s) + sizeof(struct ct_hdr_s);
}
u16
@@ -1275,7 +1275,7 @@ fc_gid_ft_build(struct fchs_s *fchs, void *pyld, u32 s_id,
gidft->domain_id = 0;
gidft->area_id = 0;
- return (sizeof(struct fcgs_gidft_req_s) + sizeof(struct ct_hdr_s));
+ return sizeof(struct fcgs_gidft_req_s) + sizeof(struct ct_hdr_s);
}
u16
@@ -1294,7 +1294,7 @@ fc_rpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
rpnid->port_id = port_id;
rpnid->port_name = port_name;
- return (sizeof(struct fcgs_rpnid_req_s) + sizeof(struct ct_hdr_s));
+ return sizeof(struct fcgs_rpnid_req_s) + sizeof(struct ct_hdr_s);
}
u16
@@ -1313,7 +1313,7 @@ fc_rnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
rnnid->port_id = port_id;
rnnid->node_name = node_name;
- return (sizeof(struct fcgs_rnnid_req_s) + sizeof(struct ct_hdr_s));
+ return sizeof(struct fcgs_rnnid_req_s) + sizeof(struct ct_hdr_s);
}
u16
@@ -1332,7 +1332,7 @@ fc_rcsid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
rcsid->port_id = port_id;
rcsid->cos = cos;
- return (sizeof(struct fcgs_rcsid_req_s) + sizeof(struct ct_hdr_s));
+ return sizeof(struct fcgs_rcsid_req_s) + sizeof(struct ct_hdr_s);
}
u16
@@ -1351,7 +1351,7 @@ fc_rptid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
rptid->port_id = port_id;
rptid->port_type = port_type;
- return (sizeof(struct fcgs_rptid_req_s) + sizeof(struct ct_hdr_s));
+ return sizeof(struct fcgs_rptid_req_s) + sizeof(struct ct_hdr_s);
}
u16
@@ -1368,7 +1368,7 @@ fc_ganxt_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id)
bfa_os_memset(ganxt, 0, sizeof(struct fcgs_ganxt_req_s));
ganxt->port_id = port_id;
- return (sizeof(struct ct_hdr_s) + sizeof(struct fcgs_ganxt_req_s));
+ return sizeof(struct ct_hdr_s) + sizeof(struct fcgs_ganxt_req_s);
}
/*
@@ -1385,7 +1385,7 @@ fc_fdmi_reqhdr_build(struct fchs_s *fchs, void *pyld, u32 s_id,
fc_gs_fchdr_build(fchs, d_id, s_id, 0);
fc_gs_fdmi_cthdr_build(cthdr, s_id, cmd_code);
- return (sizeof(struct ct_hdr_s));
+ return sizeof(struct ct_hdr_s);
}
/*
@@ -1425,7 +1425,7 @@ fc_gmal_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn)
bfa_os_memset(gmal, 0, sizeof(fcgs_gmal_req_t));
gmal->wwn = wwn;
- return (sizeof(struct ct_hdr_s) + sizeof(fcgs_gmal_req_t));
+ return sizeof(struct ct_hdr_s) + sizeof(fcgs_gmal_req_t);
}
/*
@@ -1445,5 +1445,5 @@ fc_gfn_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn)
bfa_os_memset(gfn, 0, sizeof(fcgs_gfn_req_t));
gfn->wwn = wwn;
- return (sizeof(struct ct_hdr_s) + sizeof(fcgs_gfn_req_t));
+ return sizeof(struct ct_hdr_s) + sizeof(fcgs_gfn_req_t);
}
diff --git a/drivers/scsi/bfa/fcbuild.h b/drivers/scsi/bfa/fcbuild.h
index 4d248424f7b3..8fa7f270ef7b 100644
--- a/drivers/scsi/bfa/fcbuild.h
+++ b/drivers/scsi/bfa/fcbuild.h
@@ -32,8 +32,8 @@
* Utility Macros/functions
*/
-#define fcif_sof_set(_ifhdr, _sof) (_ifhdr)->sof = FC_ ## _sof
-#define fcif_eof_set(_ifhdr, _eof) (_ifhdr)->eof = FC_ ## _eof
+#define fcif_sof_set(_ifhdr, _sof) ((_ifhdr)->sof = FC_ ## _sof)
+#define fcif_eof_set(_ifhdr, _eof) ((_ifhdr)->eof = FC_ ## _eof)
#define wwn_is_equal(_wwn1, _wwn2) \
(memcmp(&(_wwn1), &(_wwn2), sizeof(wwn_t)) == 0)
@@ -49,7 +49,7 @@
static inline u32
fc_get_ctresp_pyld_len(u32 resp_len)
{
- return (resp_len - sizeof(struct ct_hdr_s));
+ return resp_len - sizeof(struct ct_hdr_s);
}
/*
diff --git a/drivers/scsi/bfa/fcpim.c b/drivers/scsi/bfa/fcpim.c
index 8ce5d8934677..1f3c06efaa9e 100644
--- a/drivers/scsi/bfa/fcpim.c
+++ b/drivers/scsi/bfa/fcpim.c
@@ -286,11 +286,10 @@ bfa_fcs_itnim_sm_online(struct bfa_fcs_itnim_s *itnim,
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_hcb_offline);
bfa_fcb_itnim_offline(itnim->itnim_drv);
bfa_itnim_offline(itnim->bfa_itnim);
- if (bfa_fcs_port_is_online(itnim->rport->port) == BFA_TRUE) {
+ if (bfa_fcs_port_is_online(itnim->rport->port) == BFA_TRUE)
bfa_fcs_itnim_aen_post(itnim, BFA_ITNIM_AEN_DISCONNECT);
- } else {
+ else
bfa_fcs_itnim_aen_post(itnim, BFA_ITNIM_AEN_OFFLINE);
- }
break;
case BFA_FCS_ITNIM_SM_DELETE:
@@ -732,7 +731,7 @@ bfa_fcs_itnim_lookup(struct bfa_fcs_port_s *port, wwn_t rpwwn)
return NULL;
bfa_assert(rport->itnim != NULL);
- return (rport->itnim);
+ return rport->itnim;
}
bfa_status_t
diff --git a/drivers/scsi/bfa/fcs.h b/drivers/scsi/bfa/fcs.h
index deee685e8478..8d08230e6295 100644
--- a/drivers/scsi/bfa/fcs.h
+++ b/drivers/scsi/bfa/fcs.h
@@ -23,7 +23,7 @@
#ifndef __FCS_H__
#define __FCS_H__
-#define __fcs_min_cfg(__fcs) (__fcs)->min_cfg
+#define __fcs_min_cfg(__fcs) ((__fcs)->min_cfg)
void bfa_fcs_modexit_comp(struct bfa_fcs_s *fcs);
diff --git a/drivers/scsi/bfa/fdmi.c b/drivers/scsi/bfa/fdmi.c
index b845eb272c78..df2a1e54e16b 100644
--- a/drivers/scsi/bfa/fdmi.c
+++ b/drivers/scsi/bfa/fdmi.c
@@ -72,9 +72,9 @@ static u16 bfa_fcs_port_fdmi_build_rpa_pyld(
struct bfa_fcs_port_fdmi_s *fdmi, u8 *pyld);
static u16 bfa_fcs_port_fdmi_build_portattr_block(
struct bfa_fcs_port_fdmi_s *fdmi, u8 *pyld);
-void bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_port_fdmi_s *fdmi,
+static void bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_port_fdmi_s *fdmi,
struct bfa_fcs_fdmi_hba_attr_s *hba_attr);
-void bfa_fcs_fdmi_get_portattr(struct bfa_fcs_port_fdmi_s *fdmi,
+static void bfa_fcs_fdmi_get_portattr(struct bfa_fcs_port_fdmi_s *fdmi,
struct bfa_fcs_fdmi_port_attr_s *port_attr);
/**
* fcs_fdmi_sm FCS FDMI state machine
@@ -1091,7 +1091,7 @@ bfa_fcs_port_fdmi_timeout(void *arg)
bfa_sm_send_event(fdmi, FDMISM_EVENT_TIMEOUT);
}
-void
+static void
bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_port_fdmi_s *fdmi,
struct bfa_fcs_fdmi_hba_attr_s *hba_attr)
{
@@ -1145,7 +1145,7 @@ bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_port_fdmi_s *fdmi,
}
-void
+static void
bfa_fcs_fdmi_get_portattr(struct bfa_fcs_port_fdmi_s *fdmi,
struct bfa_fcs_fdmi_port_attr_s *port_attr)
{
diff --git a/drivers/scsi/bfa/include/aen/bfa_aen.h b/drivers/scsi/bfa/include/aen/bfa_aen.h
index da8cac093d3d..d9cbc2a783d4 100644
--- a/drivers/scsi/bfa/include/aen/bfa_aen.h
+++ b/drivers/scsi/bfa/include/aen/bfa_aen.h
@@ -54,7 +54,7 @@ bfa_aen_get_max_cfg_entry(void)
static inline s32
bfa_aen_get_meminfo(void)
{
- return (sizeof(struct bfa_aen_entry_s) * bfa_aen_get_max_cfg_entry());
+ return sizeof(struct bfa_aen_entry_s) * bfa_aen_get_max_cfg_entry();
}
static inline s32
diff --git a/drivers/scsi/bfa/include/bfa.h b/drivers/scsi/bfa/include/bfa.h
index 64c1412c5703..d4bc0d9fa42c 100644
--- a/drivers/scsi/bfa/include/bfa.h
+++ b/drivers/scsi/bfa/include/bfa.h
@@ -76,11 +76,11 @@ struct bfa_meminfo_s {
struct bfa_mem_elem_s meminfo[BFA_MEM_TYPE_MAX];
};
#define bfa_meminfo_kva(_m) \
- (_m)->meminfo[BFA_MEM_TYPE_KVA - 1].kva_curp
+ ((_m)->meminfo[BFA_MEM_TYPE_KVA - 1].kva_curp)
#define bfa_meminfo_dma_virt(_m) \
- (_m)->meminfo[BFA_MEM_TYPE_DMA - 1].kva_curp
+ ((_m)->meminfo[BFA_MEM_TYPE_DMA - 1].kva_curp)
#define bfa_meminfo_dma_phys(_m) \
- (_m)->meminfo[BFA_MEM_TYPE_DMA - 1].dma_curp
+ ((_m)->meminfo[BFA_MEM_TYPE_DMA - 1].dma_curp)
/**
* Generic Scatter Gather Element used by driver
@@ -100,7 +100,7 @@ struct bfa_sge_s {
/*
* bfa stats interfaces
*/
-#define bfa_stats(_mod, _stats) (_mod)->stats._stats ++
+#define bfa_stats(_mod, _stats) ((_mod)->stats._stats++)
#define bfa_ioc_get_stats(__bfa, __ioc_stats) \
bfa_ioc_fetch_stats(&(__bfa)->ioc, __ioc_stats)
@@ -136,7 +136,7 @@ void bfa_isr_enable(struct bfa_s *bfa);
void bfa_isr_disable(struct bfa_s *bfa);
void bfa_msix_getvecs(struct bfa_s *bfa, u32 *msix_vecs_bmap,
u32 *num_vecs, u32 *max_vec_bit);
-#define bfa_msix(__bfa, __vec) (__bfa)->msix.handler[__vec](__bfa, __vec)
+#define bfa_msix(__bfa, __vec) ((__bfa)->msix.handler[__vec](__bfa, __vec))
void bfa_comp_deq(struct bfa_s *bfa, struct list_head *comp_q);
void bfa_comp_process(struct bfa_s *bfa, struct list_head *comp_q);
diff --git a/drivers/scsi/bfa/include/bfa_svc.h b/drivers/scsi/bfa/include/bfa_svc.h
index 0c80b74f72ef..268d956bad89 100644
--- a/drivers/scsi/bfa/include/bfa_svc.h
+++ b/drivers/scsi/bfa/include/bfa_svc.h
@@ -34,10 +34,10 @@ struct bfa_fcxp_s;
*/
struct bfa_rport_info_s {
u16 max_frmsz; /* max rcv pdu size */
- u32 pid : 24, /* remote port ID */
- lp_tag : 8;
- u32 local_pid : 24, /* local port ID */
- cisc : 8; /* CIRO supported */
+ u32 pid:24, /* remote port ID */
+ lp_tag:8;
+ u32 local_pid:24, /* local port ID */
+ cisc:8; /* CIRO supported */
u8 fc_class; /* supported FC classes. enum fc_cos */
u8 vf_en; /* virtual fabric enable */
u16 vf_id; /* virtual fabric ID */
diff --git a/drivers/scsi/bfa/include/bfi/bfi.h b/drivers/scsi/bfa/include/bfi/bfi.h
index 6cadfe0d4ba1..7042c18e542d 100644
--- a/drivers/scsi/bfa/include/bfi/bfi.h
+++ b/drivers/scsi/bfa/include/bfi/bfi.h
@@ -93,13 +93,13 @@ union bfi_addr_u {
*/
struct bfi_sge_s {
#ifdef __BIGENDIAN
- u32 flags : 2,
- rsvd : 2,
- sg_len : 28;
+ u32 flags:2,
+ rsvd:2,
+ sg_len:28;
#else
- u32 sg_len : 28,
- rsvd : 2,
- flags : 2;
+ u32 sg_len:28,
+ rsvd:2,
+ flags:2;
#endif
union bfi_addr_u sga;
};
diff --git a/drivers/scsi/bfa/include/bfi/bfi_ioc.h b/drivers/scsi/bfa/include/bfi/bfi_ioc.h
index 026e9c06ae97..96ef05670659 100644
--- a/drivers/scsi/bfa/include/bfi/bfi_ioc.h
+++ b/drivers/scsi/bfa/include/bfi/bfi_ioc.h
@@ -142,7 +142,7 @@ enum {
BFI_ADAPTER_UNSUPP = 0x400000, /* unknown adapter type */
};
-#define BFI_ADAPTER_GETP(__prop,__adap_prop) \
+#define BFI_ADAPTER_GETP(__prop, __adap_prop) \
(((__adap_prop) & BFI_ADAPTER_ ## __prop ## _MK) >> \
BFI_ADAPTER_ ## __prop ## _SH)
#define BFI_ADAPTER_SETP(__prop, __val) \
diff --git a/drivers/scsi/bfa/include/bfi/bfi_lps.h b/drivers/scsi/bfa/include/bfi/bfi_lps.h
index 414b0e30f6ef..c59d47badb4b 100644
--- a/drivers/scsi/bfa/include/bfi/bfi_lps.h
+++ b/drivers/scsi/bfa/include/bfi/bfi_lps.h
@@ -55,8 +55,8 @@ struct bfi_lps_login_rsp_s {
u16 bb_credit;
u8 f_port;
u8 npiv_en;
- u32 lp_pid : 24;
- u32 auth_req : 8;
+ u32 lp_pid:24;
+ u32 auth_req:8;
mac_t lp_mac;
mac_t fcf_mac;
u8 ext_status;
diff --git a/drivers/scsi/bfa/include/bfi/bfi_rport.h b/drivers/scsi/bfa/include/bfi/bfi_rport.h
index 3520f55f09d7..e1cd83b56ec6 100644
--- a/drivers/scsi/bfa/include/bfi/bfi_rport.h
+++ b/drivers/scsi/bfa/include/bfi/bfi_rport.h
@@ -38,10 +38,10 @@ struct bfi_rport_create_req_s {
struct bfi_mhdr_s mh; /* common msg header */
u16 bfa_handle; /* host rport handle */
u16 max_frmsz; /* max rcv pdu size */
- u32 pid : 24, /* remote port ID */
- lp_tag : 8; /* local port tag */
- u32 local_pid : 24, /* local port ID */
- cisc : 8;
+ u32 pid:24, /* remote port ID */
+ lp_tag:8; /* local port tag */
+ u32 local_pid:24, /* local port ID */
+ cisc:8;
u8 fc_class; /* supported FC classes */
u8 vf_en; /* virtual fabric enable */
u16 vf_id; /* virtual fabric ID */
diff --git a/drivers/scsi/bfa/include/cs/bfa_checksum.h b/drivers/scsi/bfa/include/cs/bfa_checksum.h
index af8c1d533ba8..650f8d0aaff9 100644
--- a/drivers/scsi/bfa/include/cs/bfa_checksum.h
+++ b/drivers/scsi/bfa/include/cs/bfa_checksum.h
@@ -31,7 +31,7 @@ bfa_checksum_u32(u32 *buf, int sz)
for (i = 0; i < m; i++)
sum ^= buf[i];
- return (sum);
+ return sum;
}
static inline u16
@@ -43,7 +43,7 @@ bfa_checksum_u16(u16 *buf, int sz)
for (i = 0; i < m; i++)
sum ^= buf[i];
- return (sum);
+ return sum;
}
static inline u8
@@ -55,6 +55,6 @@ bfa_checksum_u8(u8 *buf, int sz)
for (i = 0; i < sz; i++)
sum ^= buf[i];
- return (sum);
+ return sum;
}
#endif
diff --git a/drivers/scsi/bfa/include/cs/bfa_sm.h b/drivers/scsi/bfa/include/cs/bfa_sm.h
index 9877066680a6..b0a92baf6657 100644
--- a/drivers/scsi/bfa/include/cs/bfa_sm.h
+++ b/drivers/scsi/bfa/include/cs/bfa_sm.h
@@ -24,8 +24,8 @@
typedef void (*bfa_sm_t)(void *sm, int event);
-#define bfa_sm_set_state(_sm, _state) (_sm)->sm = (bfa_sm_t)(_state)
-#define bfa_sm_send_event(_sm, _event) (_sm)->sm((_sm), (_event))
+#define bfa_sm_set_state(_sm, _state) ((_sm)->sm = (bfa_sm_t)(_state))
+#define bfa_sm_send_event(_sm, _event) ((_sm)->sm((_sm), (_event)))
#define bfa_sm_get_state(_sm) ((_sm)->sm)
#define bfa_sm_cmp_state(_sm, _state) ((_sm)->sm == (bfa_sm_t)(_state))
@@ -62,7 +62,7 @@ typedef void (*bfa_fsm_t)(void *fsm, int event);
} while (0)
#define bfa_fsm_send_event(_fsm, _event) \
- (_fsm)->fsm((_fsm), (_event))
+ ((_fsm)->fsm((_fsm), (_event)))
#define bfa_fsm_cmp_state(_fsm, _state) \
((_fsm)->fsm == (bfa_fsm_t)(_state))
diff --git a/drivers/scsi/bfa/include/cs/bfa_trc.h b/drivers/scsi/bfa/include/cs/bfa_trc.h
index 3e743928c74c..310771c888e7 100644
--- a/drivers/scsi/bfa/include/cs/bfa_trc.h
+++ b/drivers/scsi/bfa/include/cs/bfa_trc.h
@@ -24,7 +24,7 @@
#endif
#ifndef BFA_TRC_TS
-#define BFA_TRC_TS(_trcm) ((_trcm)->ticks ++)
+#define BFA_TRC_TS(_trcm) ((_trcm)->ticks++)
#endif
struct bfa_trc_s {
diff --git a/drivers/scsi/bfa/include/fcs/bfa_fcs_fabric.h b/drivers/scsi/bfa/include/fcs/bfa_fcs_fabric.h
index 4ffd2242d3de..08b79d5e46f3 100644
--- a/drivers/scsi/bfa/include/fcs/bfa_fcs_fabric.h
+++ b/drivers/scsi/bfa/include/fcs/bfa_fcs_fabric.h
@@ -75,7 +75,7 @@ struct bfa_fcs_fabric_s {
*/
};
-#define bfa_fcs_fabric_npiv_capable(__f) (__f)->is_npiv
+#define bfa_fcs_fabric_npiv_capable(__f) ((__f)->is_npiv)
#define bfa_fcs_fabric_is_switched(__f) \
((__f)->fab_type == BFA_FCS_FABRIC_SWITCHED)
diff --git a/drivers/scsi/bfa/include/fcs/bfa_fcs_lport.h b/drivers/scsi/bfa/include/fcs/bfa_fcs_lport.h
index b85cba884b96..967ceb0eb074 100644
--- a/drivers/scsi/bfa/include/fcs/bfa_fcs_lport.h
+++ b/drivers/scsi/bfa/include/fcs/bfa_fcs_lport.h
@@ -125,12 +125,12 @@ union bfa_fcs_port_topo_u {
struct bfa_fcs_port_s {
struct list_head qe; /* used by port/vport */
bfa_sm_t sm; /* state machine */
- struct bfa_fcs_fabric_s *fabric; /* parent fabric */
- struct bfa_port_cfg_s port_cfg; /* port configuration */
+ struct bfa_fcs_fabric_s *fabric;/* parent fabric */
+ struct bfa_port_cfg_s port_cfg;/* port configuration */
struct bfa_timer_s link_timer; /* timer for link offline */
- u32 pid : 24; /* FC address */
- u8 lp_tag; /* lport tag */
- u16 num_rports; /* Num of r-ports */
+ u32 pid:24; /* FC address */
+ u8 lp_tag; /* lport tag */
+ u16 num_rports; /* Num of r-ports */
struct list_head rport_q; /* queue of discovered r-ports */
struct bfa_fcs_s *fcs; /* FCS instance */
union bfa_fcs_port_topo_u port_topo; /* fabric/loop/n2n details */
@@ -188,13 +188,14 @@ bfa_fcs_port_get_drvport(struct bfa_fcs_port_s *port)
}
-#define bfa_fcs_port_get_opertype(_lport) (_lport)->fabric->oper_type
+#define bfa_fcs_port_get_opertype(_lport) ((_lport)->fabric->oper_type)
-#define bfa_fcs_port_get_fabric_name(_lport) (_lport)->fabric->fabric_name
+#define bfa_fcs_port_get_fabric_name(_lport) ((_lport)->fabric->fabric_name)
-#define bfa_fcs_port_get_fabric_ipaddr(_lport) (_lport)->fabric->fabric_ip_addr
+#define bfa_fcs_port_get_fabric_ipaddr(_lport) \
+ ((_lport)->fabric->fabric_ip_addr)
/**
* bfa fcs port public functions
diff --git a/drivers/scsi/bfa/include/protocol/ct.h b/drivers/scsi/bfa/include/protocol/ct.h
index c59d6630b070..c8648bcba41a 100644
--- a/drivers/scsi/bfa/include/protocol/ct.h
+++ b/drivers/scsi/bfa/include/protocol/ct.h
@@ -193,11 +193,11 @@ struct fcgs_rftid_req_s {
#define FC_GS_FCP_FC4_FEATURE_TARGET 0x01
struct fcgs_rffid_req_s{
- u32 rsvd :8;
- u32 dap :24; /* port identifier */
- u32 rsvd1 :16;
- u32 fc4ftr_bits :8; /* fc4 feature bits */
- u32 fc4_type :8; /* corresponding FC4 Type */
+ u32 rsvd:8;
+ u32 dap:24; /* port identifier */
+ u32 rsvd1:16;
+ u32 fc4ftr_bits:8; /* fc4 feature bits */
+ u32 fc4_type:8; /* corresponding FC4 Type */
};
/**
diff --git a/drivers/scsi/bfa/include/protocol/fc.h b/drivers/scsi/bfa/include/protocol/fc.h
index 3e39ba58cfb5..14969eecf6a9 100644
--- a/drivers/scsi/bfa/include/protocol/fc.h
+++ b/drivers/scsi/bfa/include/protocol/fc.h
@@ -486,14 +486,14 @@ struct fc_rsi_s {
* see FC-PH-X table 113 & 115 for explanation also FCP table 8
*/
struct fc_prli_params_s{
- u32 reserved: 16;
+ u32 reserved:16;
#ifdef __BIGENDIAN
- u32 reserved1: 5;
- u32 rec_support : 1;
- u32 task_retry_id : 1;
- u32 retry : 1;
+ u32 reserved1:5;
+ u32 rec_support:1;
+ u32 task_retry_id:1;
+ u32 retry:1;
- u32 confirm : 1;
+ u32 confirm:1;
u32 doverlay:1;
u32 initiator:1;
u32 target:1;
@@ -502,10 +502,10 @@ struct fc_prli_params_s{
u32 rxrdisab:1;
u32 wxrdisab:1;
#else
- u32 retry : 1;
- u32 task_retry_id : 1;
- u32 rec_support : 1;
- u32 reserved1: 5;
+ u32 retry:1;
+ u32 task_retry_id:1;
+ u32 rec_support:1;
+ u32 reserved1:5;
u32 wxrdisab:1;
u32 rxrdisab:1;
@@ -514,7 +514,7 @@ struct fc_prli_params_s{
u32 target:1;
u32 initiator:1;
u32 doverlay:1;
- u32 confirm : 1;
+ u32 confirm:1;
#endif
};
diff --git a/drivers/scsi/bfa/loop.c b/drivers/scsi/bfa/loop.c
index a418dedebe9e..f7c7f4f3c640 100644
--- a/drivers/scsi/bfa/loop.c
+++ b/drivers/scsi/bfa/loop.c
@@ -58,49 +58,16 @@ static const u8 port_loop_alpa_map[] = {
/*
* Local Functions
*/
-bfa_status_t bfa_fcs_port_loop_send_plogi(struct bfa_fcs_port_s *port,
- u8 alpa);
-
-void bfa_fcs_port_loop_plogi_response(void *fcsarg,
- struct bfa_fcxp_s *fcxp,
- void *cbarg,
- bfa_status_t req_status,
- u32 rsp_len,
- u32 resid_len,
- struct fchs_s *rsp_fchs);
-
-bfa_status_t bfa_fcs_port_loop_send_adisc(struct bfa_fcs_port_s *port,
- u8 alpa);
-
-void bfa_fcs_port_loop_adisc_response(void *fcsarg,
- struct bfa_fcxp_s *fcxp,
- void *cbarg,
- bfa_status_t req_status,
- u32 rsp_len,
- u32 resid_len,
- struct fchs_s *rsp_fchs);
-
-bfa_status_t bfa_fcs_port_loop_send_plogi_acc(struct bfa_fcs_port_s *port,
- u8 alpa);
-
-void bfa_fcs_port_loop_plogi_acc_response(void *fcsarg,
- struct bfa_fcxp_s *fcxp,
- void *cbarg,
- bfa_status_t req_status,
- u32 rsp_len,
- u32 resid_len,
- struct fchs_s *rsp_fchs);
-
-bfa_status_t bfa_fcs_port_loop_send_adisc_acc(struct bfa_fcs_port_s *port,
- u8 alpa);
-
-void bfa_fcs_port_loop_adisc_acc_response(void *fcsarg,
- struct bfa_fcxp_s *fcxp,
- void *cbarg,
- bfa_status_t req_status,
- u32 rsp_len,
- u32 resid_len,
- struct fchs_s *rsp_fchs);
+static bfa_status_t bfa_fcs_port_loop_send_plogi(struct bfa_fcs_port_s *port,
+ u8 alpa);
+
+static void bfa_fcs_port_loop_plogi_response(void *fcsarg,
+ struct bfa_fcxp_s *fcxp,
+ void *cbarg,
+ bfa_status_t req_status,
+ u32 rsp_len,
+ u32 resid_len,
+ struct fchs_s *rsp_fchs);
/**
* Called by port to initializar in provate LOOP topology.
*/
@@ -179,7 +146,7 @@ bfa_fcs_port_loop_lip(struct bfa_fcs_port_s *port)
/**
* Local Functions.
*/
-bfa_status_t
+static bfa_status_t
bfa_fcs_port_loop_send_plogi(struct bfa_fcs_port_s *port, u8 alpa)
{
struct fchs_s fchs;
@@ -208,7 +175,7 @@ bfa_fcs_port_loop_send_plogi(struct bfa_fcs_port_s *port, u8 alpa)
/**
* Called by fcxp to notify the Plogi response
*/
-void
+static void
bfa_fcs_port_loop_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
void *cbarg, bfa_status_t req_status,
u32 rsp_len, u32 resid_len,
@@ -244,179 +211,3 @@ bfa_fcs_port_loop_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
bfa_assert(0);
}
}
-
-bfa_status_t
-bfa_fcs_port_loop_send_plogi_acc(struct bfa_fcs_port_s *port, u8 alpa)
-{
- struct fchs_s fchs;
- struct bfa_fcxp_s *fcxp;
- int len;
-
- bfa_trc(port->fcs, alpa);
-
- fcxp = bfa_fcxp_alloc(NULL, port->fcs->bfa, 0, 0, NULL, NULL, NULL,
- NULL);
- bfa_assert(fcxp);
-
- len = fc_plogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), alpa,
- bfa_fcs_port_get_fcid(port), 0,
- port->port_cfg.pwwn, port->port_cfg.nwwn,
- bfa_pport_get_maxfrsize(port->fcs->bfa));
-
- bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
- FC_CLASS_3, len, &fchs,
- bfa_fcs_port_loop_plogi_acc_response,
- (void *)port, FC_MAX_PDUSZ, 0); /* No response
- * expected
- */
-
- return BFA_STATUS_OK;
-}
-
-/*
- * Plogi Acc Response
- * We donot do any processing here.
- */
-void
-bfa_fcs_port_loop_plogi_acc_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
- void *cbarg, bfa_status_t req_status,
- u32 rsp_len, u32 resid_len,
- struct fchs_s *rsp_fchs)
-{
-
- struct bfa_fcs_port_s *port = (struct bfa_fcs_port_s *) cbarg;
-
- bfa_trc(port->fcs, port->pid);
-
- /*
- * Sanity Checks
- */
- if (req_status != BFA_STATUS_OK) {
- bfa_trc(port->fcs, req_status);
- return;
- }
-}
-
-bfa_status_t
-bfa_fcs_port_loop_send_adisc(struct bfa_fcs_port_s *port, u8 alpa)
-{
- struct fchs_s fchs;
- struct bfa_fcxp_s *fcxp;
- int len;
-
- bfa_trc(port->fcs, alpa);
-
- fcxp = bfa_fcxp_alloc(NULL, port->fcs->bfa, 0, 0, NULL, NULL, NULL,
- NULL);
- bfa_assert(fcxp);
-
- len = fc_adisc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), alpa,
- bfa_fcs_port_get_fcid(port), 0,
- port->port_cfg.pwwn, port->port_cfg.nwwn);
-
- bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
- FC_CLASS_3, len, &fchs,
- bfa_fcs_port_loop_adisc_response, (void *)port,
- FC_MAX_PDUSZ, FC_RA_TOV);
-
- return BFA_STATUS_OK;
-}
-
-/**
- * Called by fcxp to notify the ADISC response
- */
-void
-bfa_fcs_port_loop_adisc_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
- void *cbarg, bfa_status_t req_status,
- u32 rsp_len, u32 resid_len,
- struct fchs_s *rsp_fchs)
-{
- struct bfa_fcs_port_s *port = (struct bfa_fcs_port_s *) cbarg;
- struct bfa_fcs_rport_s *rport;
- struct fc_adisc_s *adisc_resp;
- struct fc_els_cmd_s *els_cmd;
- u32 pid = rsp_fchs->s_id;
-
- bfa_trc(port->fcs, req_status);
-
- /*
- * Sanity Checks
- */
- if (req_status != BFA_STATUS_OK) {
- /*
- * TBD : we may need to retry certain requests
- */
- bfa_fcxp_free(fcxp);
- return;
- }
-
- els_cmd = (struct fc_els_cmd_s *) BFA_FCXP_RSP_PLD(fcxp);
- adisc_resp = (struct fc_adisc_s *) els_cmd;
-
- if (els_cmd->els_code == FC_ELS_ACC) {
- } else {
- bfa_trc(port->fcs, adisc_resp->els_cmd.els_code);
-
- /*
- * TBD: we may need to check for reject codes and retry
- */
- rport = bfa_fcs_port_get_rport_by_pid(port, pid);
- if (rport) {
- list_del(&rport->qe);
- bfa_fcs_rport_delete(rport);
- }
-
- }
- return;
-}
-
-bfa_status_t
-bfa_fcs_port_loop_send_adisc_acc(struct bfa_fcs_port_s *port, u8 alpa)
-{
- struct fchs_s fchs;
- struct bfa_fcxp_s *fcxp;
- int len;
-
- bfa_trc(port->fcs, alpa);
-
- fcxp = bfa_fcxp_alloc(NULL, port->fcs->bfa, 0, 0, NULL, NULL, NULL,
- NULL);
- bfa_assert(fcxp);
-
- len = fc_adisc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), alpa,
- bfa_fcs_port_get_fcid(port), 0,
- port->port_cfg.pwwn, port->port_cfg.nwwn);
-
- bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
- FC_CLASS_3, len, &fchs,
- bfa_fcs_port_loop_adisc_acc_response,
- (void *)port, FC_MAX_PDUSZ, 0); /* no reponse
- * expected
- */
-
- return BFA_STATUS_OK;
-}
-
-/*
- * Adisc Acc Response
- * We donot do any processing here.
- */
-void
-bfa_fcs_port_loop_adisc_acc_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
- void *cbarg, bfa_status_t req_status,
- u32 rsp_len, u32 resid_len,
- struct fchs_s *rsp_fchs)
-{
-
- struct bfa_fcs_port_s *port = (struct bfa_fcs_port_s *) cbarg;
-
- bfa_trc(port->fcs, port->pid);
-
- /*
- * Sanity Checks
- */
- if (req_status != BFA_STATUS_OK) {
- bfa_trc(port->fcs, req_status);
- return;
- }
-}
diff --git a/drivers/scsi/bfa/lport_api.c b/drivers/scsi/bfa/lport_api.c
index 8f51a83f1834..1e06792cd4c2 100644
--- a/drivers/scsi/bfa/lport_api.c
+++ b/drivers/scsi/bfa/lport_api.c
@@ -43,7 +43,7 @@ bfa_fcs_cfg_base_port(struct bfa_fcs_s *fcs, struct bfa_port_cfg_s *port_cfg)
struct bfa_fcs_port_s *
bfa_fcs_get_base_port(struct bfa_fcs_s *fcs)
{
- return (&fcs->fabric.bport);
+ return &fcs->fabric.bport;
}
wwn_t
@@ -88,11 +88,10 @@ bfa_fcs_port_get_rport(struct bfa_fcs_port_s *port, wwn_t wwn, int index,
}
bfa_trc(fcs, i);
- if (rport) {
+ if (rport)
return rport->pwwn;
- } else {
+ else
return (wwn_t) 0;
- }
}
void
@@ -198,17 +197,17 @@ bfa_fcs_lookup_port(struct bfa_fcs_s *fcs, u16 vf_id, wwn_t lpwwn)
vf = bfa_fcs_vf_lookup(fcs, vf_id);
if (vf == NULL) {
bfa_trc(fcs, vf_id);
- return (NULL);
+ return NULL;
}
if (!lpwwn || (vf->bport.port_cfg.pwwn == lpwwn))
- return (&vf->bport);
+ return &vf->bport;
vport = bfa_fcs_fabric_vport_lookup(vf, lpwwn);
if (vport)
- return (&vport->lport);
+ return &vport->lport;
- return (NULL);
+ return NULL;
}
/*
diff --git a/drivers/scsi/bfa/ns.c b/drivers/scsi/bfa/ns.c
index 59fea99d67a4..2f8b880060bb 100644
--- a/drivers/scsi/bfa/ns.c
+++ b/drivers/scsi/bfa/ns.c
@@ -932,11 +932,10 @@ bfa_fcs_port_ns_send_rff_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
}
ns->fcxp = fcxp;
- if (BFA_FCS_VPORT_IS_INITIATOR_MODE(ns->port)) {
+ if (BFA_FCS_VPORT_IS_INITIATOR_MODE(ns->port))
fc4_ftrs = FC_GS_FCP_FC4_FEATURE_INITIATOR;
- } else if (BFA_FCS_VPORT_IS_TARGET_MODE(ns->port)) {
+ else if (BFA_FCS_VPORT_IS_TARGET_MODE(ns->port))
fc4_ftrs = FC_GS_FCP_FC4_FEATURE_TARGET;
- }
len = fc_rffid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
bfa_fcs_port_get_fcid(port), 0, FC_TYPE_FCP,
diff --git a/drivers/scsi/bfa/plog.c b/drivers/scsi/bfa/plog.c
index 86af818d17bb..fcb8864d3276 100644
--- a/drivers/scsi/bfa/plog.c
+++ b/drivers/scsi/bfa/plog.c
@@ -180,5 +180,5 @@ bfa_plog_disable(struct bfa_plog_s *plog)
bfa_boolean_t
bfa_plog_get_setting(struct bfa_plog_s *plog)
{
- return((bfa_boolean_t)plog->plog_enabled);
+ return (bfa_boolean_t)plog->plog_enabled;
}
diff --git a/drivers/scsi/bfa/rport_ftrs.c b/drivers/scsi/bfa/rport_ftrs.c
index 8a1f59d596c1..e1932c885ac2 100644
--- a/drivers/scsi/bfa/rport_ftrs.c
+++ b/drivers/scsi/bfa/rport_ftrs.c
@@ -79,7 +79,7 @@ bfa_fcs_rpf_sm_uninit(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
bfa_trc(rport->fcs, event);
switch (event) {
- case RPFSM_EVENT_RPORT_ONLINE :
+ case RPFSM_EVENT_RPORT_ONLINE:
if (!BFA_FCS_PID_IS_WKA(rport->pid)) {
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
rpf->rpsc_retries = 0;
@@ -87,7 +87,7 @@ bfa_fcs_rpf_sm_uninit(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
break;
};
- case RPFSM_EVENT_RPORT_OFFLINE :
+ case RPFSM_EVENT_RPORT_OFFLINE:
break;
default:
@@ -107,7 +107,7 @@ bfa_fcs_rpf_sm_rpsc_sending(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc);
break;
- case RPFSM_EVENT_RPORT_OFFLINE :
+ case RPFSM_EVENT_RPORT_OFFLINE:
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rpf->fcxp_wqe);
rpf->rpsc_retries = 0;
@@ -130,11 +130,10 @@ bfa_fcs_rpf_sm_rpsc(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
case RPFSM_EVENT_RPSC_COMP:
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_online);
/* Update speed info in f/w via BFA */
- if (rpf->rpsc_speed != BFA_PPORT_SPEED_UNKNOWN) {
+ if (rpf->rpsc_speed != BFA_PPORT_SPEED_UNKNOWN)
bfa_rport_speed(rport->bfa_rport, rpf->rpsc_speed);
- } else if (rpf->assigned_speed != BFA_PPORT_SPEED_UNKNOWN) {
+ else if (rpf->assigned_speed != BFA_PPORT_SPEED_UNKNOWN)
bfa_rport_speed(rport->bfa_rport, rpf->assigned_speed);
- }
break;
case RPFSM_EVENT_RPSC_FAIL:
@@ -154,7 +153,7 @@ bfa_fcs_rpf_sm_rpsc(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
}
break;
- case RPFSM_EVENT_RPORT_OFFLINE :
+ case RPFSM_EVENT_RPORT_OFFLINE:
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
bfa_fcxp_discard(rpf->fcxp);
rpf->rpsc_retries = 0;
@@ -174,13 +173,13 @@ bfa_fcs_rpf_sm_rpsc_retry(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
bfa_trc(rport->fcs, event);
switch (event) {
- case RPFSM_EVENT_TIMEOUT :
+ case RPFSM_EVENT_TIMEOUT:
/* re-send the RPSC */
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
bfa_fcs_rpf_send_rpsc2(rpf, NULL);
break;
- case RPFSM_EVENT_RPORT_OFFLINE :
+ case RPFSM_EVENT_RPORT_OFFLINE:
bfa_timer_stop(&rpf->timer);
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
rpf->rpsc_retries = 0;
@@ -201,7 +200,7 @@ bfa_fcs_rpf_sm_online(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
bfa_trc(rport->fcs, event);
switch (event) {
- case RPFSM_EVENT_RPORT_OFFLINE :
+ case RPFSM_EVENT_RPORT_OFFLINE:
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
rpf->rpsc_retries = 0;
break;
@@ -221,12 +220,12 @@ bfa_fcs_rpf_sm_offline(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
bfa_trc(rport->fcs, event);
switch (event) {
- case RPFSM_EVENT_RPORT_ONLINE :
+ case RPFSM_EVENT_RPORT_ONLINE:
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_sending);
bfa_fcs_rpf_send_rpsc2(rpf, NULL);
break;
- case RPFSM_EVENT_RPORT_OFFLINE :
+ case RPFSM_EVENT_RPORT_OFFLINE:
break;
default:
@@ -366,10 +365,9 @@ bfa_fcs_rpf_rpsc2_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
bfa_trc(rport->fcs, ls_rjt->reason_code);
bfa_trc(rport->fcs, ls_rjt->reason_code_expl);
rport->stats.rpsc_rejects++;
- if (ls_rjt->reason_code == FC_LS_RJT_RSN_CMD_NOT_SUPP) {
+ if (ls_rjt->reason_code == FC_LS_RJT_RSN_CMD_NOT_SUPP)
bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_FAIL);
- } else {
+ else
bfa_sm_send_event(rpf, RPFSM_EVENT_RPSC_ERROR);
- }
}
}
diff --git a/drivers/scsi/bfa/vfapi.c b/drivers/scsi/bfa/vfapi.c
index 31d81fe2fc48..391a4790bebd 100644
--- a/drivers/scsi/bfa/vfapi.c
+++ b/drivers/scsi/bfa/vfapi.c
@@ -189,7 +189,7 @@ bfa_fcs_vf_lookup(struct bfa_fcs_s *fcs, u16 vf_id)
{
bfa_trc(fcs, vf_id);
if (vf_id == FC_VF_ID_NULL)
- return (&fcs->fabric);
+ return &fcs->fabric;
/**
* @todo vf support
diff --git a/drivers/scsi/bfa/vport.c b/drivers/scsi/bfa/vport.c
index c10af06c5714..e90f1e38c32d 100644
--- a/drivers/scsi/bfa/vport.c
+++ b/drivers/scsi/bfa/vport.c
@@ -31,13 +31,13 @@
BFA_TRC_FILE(FCS, VPORT);
-#define __vport_fcs(__vp) (__vp)->lport.fcs
-#define __vport_pwwn(__vp) (__vp)->lport.port_cfg.pwwn
-#define __vport_nwwn(__vp) (__vp)->lport.port_cfg.nwwn
-#define __vport_bfa(__vp) (__vp)->lport.fcs->bfa
-#define __vport_fcid(__vp) (__vp)->lport.pid
-#define __vport_fabric(__vp) (__vp)->lport.fabric
-#define __vport_vfid(__vp) (__vp)->lport.fabric->vf_id
+#define __vport_fcs(__vp) ((__vp)->lport.fcs)
+#define __vport_pwwn(__vp) ((__vp)->lport.port_cfg.pwwn)
+#define __vport_nwwn(__vp) ((__vp)->lport.port_cfg.nwwn)
+#define __vport_bfa(__vp) ((__vp)->lport.fcs->bfa)
+#define __vport_fcid(__vp) ((__vp)->lport.pid)
+#define __vport_fabric(__vp) ((__vp)->lport.fabric)
+#define __vport_vfid(__vp) ((__vp)->lport.fabric->vf_id)
#define BFA_FCS_VPORT_MAX_RETRIES 5
/*
@@ -641,9 +641,9 @@ bfa_fcs_vport_get_max(struct bfa_fcs_s *fcs)
bfa_get_attr(fcs->bfa, &ioc_attr);
if (ioc_attr.pci_attr.device_id == BFA_PCI_DEVICE_ID_CT)
- return (BFA_FCS_MAX_VPORTS_SUPP_CT);
+ return BFA_FCS_MAX_VPORTS_SUPP_CT;
else
- return (BFA_FCS_MAX_VPORTS_SUPP_CB);
+ return BFA_FCS_MAX_VPORTS_SUPP_CB;
}
@@ -675,7 +675,7 @@ bfa_fcs_vport_create(struct bfa_fcs_vport_s *vport, struct bfa_fcs_s *fcs,
struct bfad_vport_s *vport_drv)
{
if (vport_cfg->pwwn == 0)
- return (BFA_STATUS_INVALID_WWN);
+ return BFA_STATUS_INVALID_WWN;
if (bfa_fcs_port_get_pwwn(&fcs->fabric.bport) == vport_cfg->pwwn)
return BFA_STATUS_VPORT_WWN_BP;
diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index 5edde1a8c04d..2b973f3c2eb2 100644
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -232,7 +232,6 @@ struct bnx2i_conn {
struct iscsi_cls_conn *cls_conn;
struct bnx2i_hba *hba;
struct completion cmd_cleanup_cmpl;
- int is_bound;
u32 iscsi_conn_cid;
#define BNX2I_CID_RESERVED 0x5AFF
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index cafb888c2376..070118a8f184 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -1161,9 +1161,6 @@ static int bnx2i_task_xmit(struct iscsi_task *task)
struct bnx2i_cmd *cmd = task->dd_data;
struct iscsi_cmd *hdr = (struct iscsi_cmd *) task->hdr;
- if (!bnx2i_conn->is_bound)
- return -ENOTCONN;
-
/*
* If there is no scsi_cmnd this must be a mgmt task
*/
@@ -1371,7 +1368,6 @@ static int bnx2i_conn_bind(struct iscsi_cls_session *cls_session,
bnx2i_conn->ep = bnx2i_ep;
bnx2i_conn->iscsi_conn_cid = bnx2i_ep->ep_iscsi_cid;
bnx2i_conn->fw_cid = bnx2i_ep->ep_cid;
- bnx2i_conn->is_bound = 1;
ret_code = bnx2i_bind_conn_to_iscsi_cid(hba, bnx2i_conn,
bnx2i_ep->ep_iscsi_cid);
@@ -1896,9 +1892,7 @@ static void bnx2i_ep_disconnect(struct iscsi_endpoint *ep)
conn = bnx2i_conn->cls_conn->dd_data;
session = conn->session;
- spin_lock_bh(&session->lock);
- bnx2i_conn->is_bound = 0;
- spin_unlock_bh(&session->lock);
+ iscsi_suspend_queue(conn);
}
hba = bnx2i_ep->hba;
@@ -2034,7 +2028,7 @@ struct iscsi_transport bnx2i_iscsi_transport = {
ISCSI_USERNAME | ISCSI_PASSWORD |
ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN |
ISCSI_FAST_ABORT | ISCSI_ABORT_TMO |
- ISCSI_LU_RESET_TMO |
+ ISCSI_LU_RESET_TMO | ISCSI_TGT_RESET_TMO |
ISCSI_PING_TMO | ISCSI_RECV_TMO |
ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME,
.host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_NETDEV_NAME,
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index 63abb06c4edb..9129bcf117cf 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -141,6 +141,7 @@ static const struct value_name_pair serv_out12_arr[] = {
static const struct value_name_pair serv_in16_arr[] = {
{0x10, "Read capacity(16)"},
{0x11, "Read long(16)"},
+ {0x12, "Get LBA status"},
};
#define SERV_IN16_SZ ARRAY_SIZE(serv_in16_arr)
diff --git a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
index 2631bddd255e..969c83162cc4 100644
--- a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
+++ b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c
@@ -937,7 +937,7 @@ static struct iscsi_transport cxgb3i_iscsi_transport = {
ISCSI_USERNAME | ISCSI_PASSWORD |
ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN |
ISCSI_FAST_ABORT | ISCSI_ABORT_TMO |
- ISCSI_LU_RESET_TMO |
+ ISCSI_LU_RESET_TMO | ISCSI_TGT_RESET_TMO |
ISCSI_PING_TMO | ISCSI_RECV_TMO |
ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME,
.host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS |
diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c
index 3ee1cbc89479..e19a1a55270c 100644
--- a/drivers/scsi/device_handler/scsi_dh.c
+++ b/drivers/scsi/device_handler/scsi_dh.c
@@ -226,7 +226,7 @@ store_dh_state(struct device *dev, struct device_attribute *attr,
* Activate a device handler
*/
if (scsi_dh->activate)
- err = scsi_dh->activate(sdev);
+ err = scsi_dh->activate(sdev, NULL, NULL);
else
err = 0;
}
@@ -304,18 +304,15 @@ static int scsi_dh_notifier(struct notifier_block *nb,
sdev = to_scsi_device(dev);
if (action == BUS_NOTIFY_ADD_DEVICE) {
+ err = device_create_file(dev, &scsi_dh_state_attr);
+ /* don't care about err */
devinfo = device_handler_match(NULL, sdev);
- if (!devinfo)
- goto out;
-
- err = scsi_dh_handler_attach(sdev, devinfo);
- if (!err)
- err = device_create_file(dev, &scsi_dh_state_attr);
+ if (devinfo)
+ err = scsi_dh_handler_attach(sdev, devinfo);
} else if (action == BUS_NOTIFY_DEL_DEVICE) {
device_remove_file(dev, &scsi_dh_state_attr);
scsi_dh_handler_detach(sdev, NULL);
}
-out:
return err;
}
@@ -423,10 +420,17 @@ EXPORT_SYMBOL_GPL(scsi_unregister_device_handler);
/*
* scsi_dh_activate - activate the path associated with the scsi_device
* corresponding to the given request queue.
- * @q - Request queue that is associated with the scsi_device to be
- * activated.
+ * Returns immediately without waiting for activation to be completed.
+ * @q - Request queue that is associated with the scsi_device to be
+ * activated.
+ * @fn - Function to be called upon completion of the activation.
+ * Function fn is called with data (below) and the error code.
+ * Function fn may be called from the same calling context. So,
+ * do not hold the lock in the caller which may be needed in fn.
+ * @data - data passed to the function fn upon completion.
+ *
*/
-int scsi_dh_activate(struct request_queue *q)
+int scsi_dh_activate(struct request_queue *q, activate_complete fn, void *data)
{
int err = 0;
unsigned long flags;
@@ -445,7 +449,7 @@ int scsi_dh_activate(struct request_queue *q)
return err;
if (scsi_dh->activate)
- err = scsi_dh->activate(sdev);
+ err = scsi_dh->activate(sdev, fn, data);
put_device(&sdev->sdev_gendev);
return err;
}
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index b5cdefaf2608..4f0d0138f48b 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -60,11 +60,17 @@ struct alua_dh_data {
int bufflen;
unsigned char sense[SCSI_SENSE_BUFFERSIZE];
int senselen;
+ struct scsi_device *sdev;
+ activate_complete callback_fn;
+ void *callback_data;
};
#define ALUA_POLICY_SWITCH_CURRENT 0
#define ALUA_POLICY_SWITCH_ALL 1
+static char print_alua_state(int);
+static int alua_check_sense(struct scsi_device *, struct scsi_sense_hdr *);
+
static inline struct alua_dh_data *get_alua_data(struct scsi_device *sdev)
{
struct scsi_dh_data *scsi_dh_data = sdev->scsi_dh_data;
@@ -231,18 +237,71 @@ done:
}
/*
+ * alua_stpg - Evaluate SET TARGET GROUP STATES
+ * @sdev: the device to be evaluated
+ * @state: the new target group state
+ *
+ * Send a SET TARGET GROUP STATES command to the device.
+ * We only have to test here if we should resubmit the command;
+ * any other error is assumed as a failure.
+ */
+static void stpg_endio(struct request *req, int error)
+{
+ struct alua_dh_data *h = req->end_io_data;
+ struct scsi_sense_hdr sense_hdr;
+ unsigned err = SCSI_DH_IO;
+
+ if (error || host_byte(req->errors) != DID_OK ||
+ msg_byte(req->errors) != COMMAND_COMPLETE)
+ goto done;
+
+ if (err == SCSI_DH_IO && h->senselen > 0) {
+ err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
+ &sense_hdr);
+ if (!err) {
+ err = SCSI_DH_IO;
+ goto done;
+ }
+ err = alua_check_sense(h->sdev, &sense_hdr);
+ if (err == ADD_TO_MLQUEUE) {
+ err = SCSI_DH_RETRY;
+ goto done;
+ }
+ sdev_printk(KERN_INFO, h->sdev,
+ "%s: stpg sense code: %02x/%02x/%02x\n",
+ ALUA_DH_NAME, sense_hdr.sense_key,
+ sense_hdr.asc, sense_hdr.ascq);
+ err = SCSI_DH_IO;
+ }
+ if (err == SCSI_DH_OK) {
+ h->state = TPGS_STATE_OPTIMIZED;
+ sdev_printk(KERN_INFO, h->sdev,
+ "%s: port group %02x switched to state %c\n",
+ ALUA_DH_NAME, h->group_id,
+ print_alua_state(h->state));
+ }
+done:
+ blk_put_request(req);
+ if (h->callback_fn) {
+ h->callback_fn(h->callback_data, err);
+ h->callback_fn = h->callback_data = NULL;
+ }
+ return;
+}
+
+/*
* submit_stpg - Issue a SET TARGET GROUP STATES command
- * @sdev: sdev the command should be sent to
*
* Currently we're only setting the current target port group state
* to 'active/optimized' and let the array firmware figure out
* the states of the remaining groups.
*/
-static unsigned submit_stpg(struct scsi_device *sdev, struct alua_dh_data *h)
+static unsigned submit_stpg(struct alua_dh_data *h)
{
struct request *rq;
int err = SCSI_DH_RES_TEMP_UNAVAIL;
int stpg_len = 8;
+ struct scsi_device *sdev = h->sdev;
/* Prepare the data buffer */
memset(h->buff, 0, stpg_len);
@@ -252,7 +311,7 @@ static unsigned submit_stpg(struct scsi_device *sdev, struct alua_dh_data *h)
rq = get_alua_req(sdev, h->buff, stpg_len, WRITE);
if (!rq)
- goto done;
+ return SCSI_DH_RES_TEMP_UNAVAIL;
/* Prepare the command. */
rq->cmd[0] = MAINTENANCE_OUT;
@@ -266,17 +325,9 @@ static unsigned submit_stpg(struct scsi_device *sdev, struct alua_dh_data *h)
rq->sense = h->sense;
memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
rq->sense_len = h->senselen = 0;
+ rq->end_io_data = h;
- err = blk_execute_rq(rq->q, NULL, rq, 1);
- if (err == -EIO) {
- sdev_printk(KERN_INFO, sdev,
- "%s: stpg failed with %x\n",
- ALUA_DH_NAME, rq->errors);
- h->senselen = rq->sense_len;
- err = SCSI_DH_IO;
- }
- blk_put_request(rq);
-done:
+ blk_execute_rq_nowait(rq->q, NULL, rq, 1, stpg_endio);
return err;
}
@@ -477,50 +528,6 @@ static int alua_check_sense(struct scsi_device *sdev,
}
/*
- * alua_stpg - Evaluate SET TARGET GROUP STATES
- * @sdev: the device to be evaluated
- * @state: the new target group state
- *
- * Send a SET TARGET GROUP STATES command to the device.
- * We only have to test here if we should resubmit the command;
- * any other error is assumed as a failure.
- */
-static int alua_stpg(struct scsi_device *sdev, int state,
- struct alua_dh_data *h)
-{
- struct scsi_sense_hdr sense_hdr;
- unsigned err;
- int retry = ALUA_FAILOVER_RETRIES;
-
- retry:
- err = submit_stpg(sdev, h);
- if (err == SCSI_DH_IO && h->senselen > 0) {
- err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
- &sense_hdr);
- if (!err)
- return SCSI_DH_IO;
- err = alua_check_sense(sdev, &sense_hdr);
- if (retry > 0 && err == ADD_TO_MLQUEUE) {
- retry--;
- goto retry;
- }
- sdev_printk(KERN_INFO, sdev,
- "%s: stpg sense code: %02x/%02x/%02x\n",
- ALUA_DH_NAME, sense_hdr.sense_key,
- sense_hdr.asc, sense_hdr.ascq);
- err = SCSI_DH_IO;
- }
- if (err == SCSI_DH_OK) {
- h->state = state;
- sdev_printk(KERN_INFO, sdev,
- "%s: port group %02x switched to state %c\n",
- ALUA_DH_NAME, h->group_id,
- print_alua_state(h->state) );
- }
- return err;
-}
-
-/*
* alua_rtpg - Evaluate REPORT TARGET GROUP STATES
* @sdev: the device to be evaluated.
*
@@ -652,7 +659,8 @@ out:
* based on a certain policy. But until we actually encounter them it
* should be okay.
*/
-static int alua_activate(struct scsi_device *sdev)
+static int alua_activate(struct scsi_device *sdev,
+ activate_complete fn, void *data)
{
struct alua_dh_data *h = get_alua_data(sdev);
int err = SCSI_DH_OK;
@@ -663,11 +671,19 @@ static int alua_activate(struct scsi_device *sdev)
goto out;
}
- if (h->tpgs & TPGS_MODE_EXPLICIT && h->state != TPGS_STATE_OPTIMIZED)
- err = alua_stpg(sdev, TPGS_STATE_OPTIMIZED, h);
+ if (h->tpgs & TPGS_MODE_EXPLICIT && h->state != TPGS_STATE_OPTIMIZED) {
+ h->callback_fn = fn;
+ h->callback_data = data;
+ err = submit_stpg(h);
+ if (err == SCSI_DH_OK)
+ return 0;
+ h->callback_fn = h->callback_data = NULL;
+ }
out:
- return err;
+ if (fn)
+ fn(data, err);
+ return 0;
}
/*
@@ -745,6 +761,7 @@ static int alua_bus_attach(struct scsi_device *sdev)
h->rel_port = -1;
h->buff = h->inq;
h->bufflen = ALUA_INQUIRY_SIZE;
+ h->sdev = sdev;
err = alua_initialize(sdev, h);
if (err != SCSI_DH_OK)
diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c
index 0cffe84976fe..61966750bd60 100644
--- a/drivers/scsi/device_handler/scsi_dh_emc.c
+++ b/drivers/scsi/device_handler/scsi_dh_emc.c
@@ -528,7 +528,8 @@ retry:
return err;
}
-static int clariion_activate(struct scsi_device *sdev)
+static int clariion_activate(struct scsi_device *sdev,
+ activate_complete fn, void *data)
{
struct clariion_dh_data *csdev = get_clariion_data(sdev);
int result;
@@ -559,7 +560,9 @@ done:
csdev->port, lun_state[csdev->lun_state],
csdev->default_sp + 'A');
- return result;
+ if (fn)
+ fn(data, result);
+ return 0;
}
/*
* params - parameters in the following format
diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
index f7da7530875e..857fdd6032b2 100644
--- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c
+++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
@@ -39,8 +39,14 @@ struct hp_sw_dh_data {
unsigned char sense[SCSI_SENSE_BUFFERSIZE];
int path_state;
int retries;
+ int retry_cnt;
+ struct scsi_device *sdev;
+ activate_complete callback_fn;
+ void *callback_data;
};
+static int hp_sw_start_stop(struct hp_sw_dh_data *);
+
static inline struct hp_sw_dh_data *get_hp_sw_data(struct scsi_device *sdev)
{
struct scsi_dh_data *scsi_dh_data = sdev->scsi_dh_data;
@@ -191,19 +197,53 @@ static int start_done(struct scsi_device *sdev, unsigned char *sense)
return rc;
}
+static void start_stop_endio(struct request *req, int error)
+{
+ struct hp_sw_dh_data *h = req->end_io_data;
+ unsigned err = SCSI_DH_OK;
+
+ if (error || host_byte(req->errors) != DID_OK ||
+ msg_byte(req->errors) != COMMAND_COMPLETE) {
+ sdev_printk(KERN_WARNING, h->sdev,
+ "%s: sending start_stop_unit failed with %x\n",
+ HP_SW_NAME, req->errors);
+ err = SCSI_DH_IO;
+ goto done;
+ }
+
+ if (req->sense_len > 0) {
+ err = start_done(h->sdev, h->sense);
+ if (err == SCSI_DH_RETRY) {
+ err = SCSI_DH_IO;
+ if (--h->retry_cnt) {
+ blk_put_request(req);
+ err = hp_sw_start_stop(h);
+ if (err == SCSI_DH_OK)
+ return;
+ }
+ }
+ }
+done:
+ blk_put_request(req);
+ if (h->callback_fn) {
+ h->callback_fn(h->callback_data, err);
+ h->callback_fn = h->callback_data = NULL;
+ }
+ return;
+
+}
+
/*
* hp_sw_start_stop - Send START STOP UNIT command
* @sdev: sdev command should be sent to
*
* Sending START STOP UNIT activates the SP.
*/
-static int hp_sw_start_stop(struct scsi_device *sdev, struct hp_sw_dh_data *h)
+static int hp_sw_start_stop(struct hp_sw_dh_data *h)
{
struct request *req;
- int ret, retry;
-retry:
- req = blk_get_request(sdev->request_queue, WRITE, GFP_NOIO);
+ req = blk_get_request(h->sdev->request_queue, WRITE, GFP_ATOMIC);
if (!req)
return SCSI_DH_RES_TEMP_UNAVAIL;
@@ -217,32 +257,10 @@ retry:
req->sense = h->sense;
memset(req->sense, 0, SCSI_SENSE_BUFFERSIZE);
req->sense_len = 0;
- retry = h->retries;
-
- ret = blk_execute_rq(req->q, NULL, req, 1);
- if (ret == -EIO) {
- if (req->sense_len > 0) {
- ret = start_done(sdev, h->sense);
- } else {
- sdev_printk(KERN_WARNING, sdev,
- "%s: sending start_stop_unit failed with %x\n",
- HP_SW_NAME, req->errors);
- ret = SCSI_DH_IO;
- }
- } else
- ret = SCSI_DH_OK;
+ req->end_io_data = h;
- if (ret == SCSI_DH_RETRY) {
- if (--retry) {
- blk_put_request(req);
- goto retry;
- }
- ret = SCSI_DH_IO;
- }
-
- blk_put_request(req);
-
- return ret;
+ blk_execute_rq_nowait(req->q, NULL, req, 1, start_stop_endio);
+ return SCSI_DH_OK;
}
static int hp_sw_prep_fn(struct scsi_device *sdev, struct request *req)
@@ -268,7 +286,8 @@ static int hp_sw_prep_fn(struct scsi_device *sdev, struct request *req)
* activate the passive path (and deactivate the
* previously active one).
*/
-static int hp_sw_activate(struct scsi_device *sdev)
+static int hp_sw_activate(struct scsi_device *sdev,
+ activate_complete fn, void *data)
{
int ret = SCSI_DH_OK;
struct hp_sw_dh_data *h = get_hp_sw_data(sdev);
@@ -276,14 +295,18 @@ static int hp_sw_activate(struct scsi_device *sdev)
ret = hp_sw_tur(sdev, h);
if (ret == SCSI_DH_OK && h->path_state == HP_SW_PATH_PASSIVE) {
- ret = hp_sw_start_stop(sdev, h);
+ h->retry_cnt = h->retries;
+ h->callback_fn = fn;
+ h->callback_data = data;
+ ret = hp_sw_start_stop(h);
if (ret == SCSI_DH_OK)
- sdev_printk(KERN_INFO, sdev,
- "%s: activated path\n",
- HP_SW_NAME);
+ return 0;
+ h->callback_fn = h->callback_data = NULL;
}
- return ret;
+ if (fn)
+ fn(data, ret);
+ return 0;
}
static const struct scsi_dh_devlist hp_sw_dh_data_list[] = {
@@ -326,6 +349,7 @@ static int hp_sw_bus_attach(struct scsi_device *sdev)
h = (struct hp_sw_dh_data *) scsi_dh_data->buf;
h->path_state = HP_SW_PATH_UNINITIALIZED;
h->retries = HP_SW_RETRIES;
+ h->sdev = sdev;
ret = hp_sw_tur(sdev, h);
if (ret != SCSI_DH_OK || h->path_state == HP_SW_PATH_UNINITIALIZED)
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 268189d31d9c..47cfe1c49c3e 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -22,6 +22,7 @@
#include <scsi/scsi.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_dh.h>
+#include <linux/workqueue.h>
#define RDAC_NAME "rdac"
#define RDAC_RETRY_COUNT 5
@@ -138,7 +139,13 @@ struct rdac_controller {
} mode_select;
u8 index;
u8 array_name[ARRAY_LABEL_LEN];
+ spinlock_t ms_lock;
+ int ms_queued;
+ struct work_struct ms_work;
+ struct scsi_device *ms_sdev;
+ struct list_head ms_head;
};
+
struct c8_inquiry {
u8 peripheral_info;
u8 page_code; /* 0xC8 */
@@ -198,8 +205,17 @@ static const char *lun_state[] =
"owned (AVT mode)",
};
+struct rdac_queue_data {
+ struct list_head entry;
+ struct rdac_dh_data *h;
+ activate_complete callback_fn;
+ void *callback_data;
+};
+
static LIST_HEAD(ctlr_list);
static DEFINE_SPINLOCK(list_lock);
+static struct workqueue_struct *kmpath_rdacd;
+static void send_mode_select(struct work_struct *work);
/*
* module parameter to enable rdac debug logging.
@@ -281,7 +297,6 @@ static struct request *rdac_failover_get(struct scsi_device *sdev,
rdac_pg->subpage_code = 0x1;
rdac_pg->page_len[0] = 0x01;
rdac_pg->page_len[1] = 0x28;
- rdac_pg->lun_table[h->lun] = 0x81;
} else {
struct rdac_pg_legacy *rdac_pg;
@@ -291,7 +306,6 @@ static struct request *rdac_failover_get(struct scsi_device *sdev,
common = &rdac_pg->common;
rdac_pg->page_code = RDAC_PAGE_CODE_REDUNDANT_CONTROLLER;
rdac_pg->page_len = 0x68;
- rdac_pg->lun_table[h->lun] = 0x81;
}
common->rdac_mode[1] = RDAC_MODE_TRANSFER_SPECIFIED_LUNS;
common->quiescence_timeout = RDAC_QUIESCENCE_TIME;
@@ -325,6 +339,7 @@ static void release_controller(struct kref *kref)
struct rdac_controller *ctlr;
ctlr = container_of(kref, struct rdac_controller, kref);
+ flush_workqueue(kmpath_rdacd);
spin_lock(&list_lock);
list_del(&ctlr->node);
spin_unlock(&list_lock);
@@ -363,6 +378,11 @@ static struct rdac_controller *get_controller(u8 *subsys_id, u8 *slot_id,
kref_init(&ctlr->kref);
ctlr->use_ms10 = -1;
+ ctlr->ms_queued = 0;
+ ctlr->ms_sdev = NULL;
+ spin_lock_init(&ctlr->ms_lock);
+ INIT_WORK(&ctlr->ms_work, send_mode_select);
+ INIT_LIST_HEAD(&ctlr->ms_head);
list_add(&ctlr->node, &ctlr_list);
done:
spin_unlock(&list_lock);
@@ -490,7 +510,7 @@ static int set_mode_select(struct scsi_device *sdev, struct rdac_dh_data *h)
}
static int mode_select_handle_sense(struct scsi_device *sdev,
- unsigned char *sensebuf)
+ unsigned char *sensebuf)
{
struct scsi_sense_hdr sense_hdr;
int err = SCSI_DH_IO, ret;
@@ -533,11 +553,29 @@ done:
return err;
}
-static int send_mode_select(struct scsi_device *sdev, struct rdac_dh_data *h)
+static void send_mode_select(struct work_struct *work)
{
+ struct rdac_controller *ctlr =
+ container_of(work, struct rdac_controller, ms_work);
struct request *rq;
+ struct scsi_device *sdev = ctlr->ms_sdev;
+ struct rdac_dh_data *h = get_rdac_data(sdev);
struct request_queue *q = sdev->request_queue;
int err, retry_cnt = RDAC_RETRY_COUNT;
+ struct rdac_queue_data *tmp, *qdata;
+ LIST_HEAD(list);
+ u8 *lun_table;
+
+ spin_lock(&ctlr->ms_lock);
+ list_splice_init(&ctlr->ms_head, &list);
+ ctlr->ms_queued = 0;
+ ctlr->ms_sdev = NULL;
+ spin_unlock(&ctlr->ms_lock);
+
+ if (ctlr->use_ms10)
+ lun_table = ctlr->mode_select.expanded.lun_table;
+ else
+ lun_table = ctlr->mode_select.legacy.lun_table;
retry:
err = SCSI_DH_RES_TEMP_UNAVAIL;
@@ -545,6 +583,10 @@ retry:
if (!rq)
goto done;
+ list_for_each_entry(qdata, &list, entry) {
+ lun_table[qdata->h->lun] = 0x81;
+ }
+
RDAC_LOG(RDAC_LOG_FAILOVER, sdev, "array %s, ctlr %d, "
"%s MODE_SELECT command",
(char *) h->ctlr->array_name, h->ctlr->index,
@@ -565,10 +607,45 @@ retry:
}
done:
- return err;
+ list_for_each_entry_safe(qdata, tmp, &list, entry) {
+ list_del(&qdata->entry);
+ if (err == SCSI_DH_OK)
+ qdata->h->state = RDAC_STATE_ACTIVE;
+ if (qdata->callback_fn)
+ qdata->callback_fn(qdata->callback_data, err);
+ kfree(qdata);
+ }
+ return;
+}
+
+static int queue_mode_select(struct scsi_device *sdev,
+ activate_complete fn, void *data)
+{
+ struct rdac_queue_data *qdata;
+ struct rdac_controller *ctlr;
+
+ qdata = kzalloc(sizeof(*qdata), GFP_KERNEL);
+ if (!qdata)
+ return SCSI_DH_RETRY;
+
+ qdata->h = get_rdac_data(sdev);
+ qdata->callback_fn = fn;
+ qdata->callback_data = data;
+
+ ctlr = qdata->h->ctlr;
+ spin_lock(&ctlr->ms_lock);
+ list_add_tail(&qdata->entry, &ctlr->ms_head);
+ if (!ctlr->ms_queued) {
+ ctlr->ms_queued = 1;
+ ctlr->ms_sdev = sdev;
+ queue_work(kmpath_rdacd, &ctlr->ms_work);
+ }
+ spin_unlock(&ctlr->ms_lock);
+ return SCSI_DH_OK;
}
-static int rdac_activate(struct scsi_device *sdev)
+static int rdac_activate(struct scsi_device *sdev,
+ activate_complete fn, void *data)
{
struct rdac_dh_data *h = get_rdac_data(sdev);
int err = SCSI_DH_OK;
@@ -577,10 +654,15 @@ static int rdac_activate(struct scsi_device *sdev)
if (err != SCSI_DH_OK)
goto done;
- if (h->lun_state == RDAC_LUN_UNOWNED)
- err = send_mode_select(sdev, h);
+ if (h->lun_state == RDAC_LUN_UNOWNED) {
+ err = queue_mode_select(sdev, fn, data);
+ if (err == SCSI_DH_OK)
+ return 0;
+ }
done:
- return err;
+ if (fn)
+ fn(data, err);
+ return 0;
}
static int rdac_prep_fn(struct scsi_device *sdev, struct request *req)
@@ -790,13 +872,26 @@ static int __init rdac_init(void)
int r;
r = scsi_register_device_handler(&rdac_dh);
- if (r != 0)
+ if (r != 0) {
printk(KERN_ERR "Failed to register scsi device handler.");
+ goto done;
+ }
+
+ /*
+ * Create workqueue to handle mode selects for rdac
+ */
+ kmpath_rdacd = create_singlethread_workqueue("kmpath_rdacd");
+ if (!kmpath_rdacd) {
+ scsi_unregister_device_handler(&rdac_dh);
+ printk(KERN_ERR "kmpath_rdacd creation failed.\n");
+ }
+done:
return r;
}
static void __exit rdac_exit(void)
{
+ destroy_workqueue(kmpath_rdacd);
scsi_unregister_device_handler(&rdac_dh);
}
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 704b8e034946..a30ffaa1222c 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -66,14 +66,14 @@ LIST_HEAD(fcoe_hostlist);
DEFINE_PER_CPU(struct fcoe_percpu_s, fcoe_percpu);
/* Function Prototypes */
-static int fcoe_reset(struct Scsi_Host *shost);
+static int fcoe_reset(struct Scsi_Host *);
static int fcoe_xmit(struct fc_lport *, struct fc_frame *);
static int fcoe_rcv(struct sk_buff *, struct net_device *,
struct packet_type *, struct net_device *);
-static int fcoe_percpu_receive_thread(void *arg);
-static void fcoe_clean_pending_queue(struct fc_lport *lp);
-static void fcoe_percpu_clean(struct fc_lport *lp);
-static int fcoe_link_ok(struct fc_lport *lp);
+static int fcoe_percpu_receive_thread(void *);
+static void fcoe_clean_pending_queue(struct fc_lport *);
+static void fcoe_percpu_clean(struct fc_lport *);
+static int fcoe_link_ok(struct fc_lport *);
static struct fc_lport *fcoe_hostlist_lookup(const struct net_device *);
static int fcoe_hostlist_add(const struct fc_lport *);
@@ -82,15 +82,69 @@ static void fcoe_check_wait_queue(struct fc_lport *, struct sk_buff *);
static int fcoe_device_notification(struct notifier_block *, ulong, void *);
static void fcoe_dev_setup(void);
static void fcoe_dev_cleanup(void);
-static struct fcoe_interface *
- fcoe_hostlist_lookup_port(const struct net_device *dev);
+static struct fcoe_interface
+*fcoe_hostlist_lookup_port(const struct net_device *);
+
+static int fcoe_fip_recv(struct sk_buff *, struct net_device *,
+ struct packet_type *, struct net_device *);
+
+static void fcoe_fip_send(struct fcoe_ctlr *, struct sk_buff *);
+static void fcoe_update_src_mac(struct fc_lport *, u8 *);
+static u8 *fcoe_get_src_mac(struct fc_lport *);
+static void fcoe_destroy_work(struct work_struct *);
+
+static int fcoe_ddp_setup(struct fc_lport *, u16, struct scatterlist *,
+ unsigned int);
+static int fcoe_ddp_done(struct fc_lport *, u16);
+
+static int fcoe_cpu_callback(struct notifier_block *, unsigned long, void *);
+
+static int fcoe_create(const char *, struct kernel_param *);
+static int fcoe_destroy(const char *, struct kernel_param *);
+
+static struct fc_seq *fcoe_elsct_send(struct fc_lport *,
+ u32 did, struct fc_frame *,
+ unsigned int op,
+ void (*resp)(struct fc_seq *,
+ struct fc_frame *,
+ void *),
+ void *, u32 timeout);
+static void fcoe_recv_frame(struct sk_buff *skb);
+
+static void fcoe_get_lesb(struct fc_lport *, struct fc_els_lesb *);
+
+module_param_call(create, fcoe_create, NULL, NULL, S_IWUSR);
+__MODULE_PARM_TYPE(create, "string");
+MODULE_PARM_DESC(create, "Create fcoe fcoe using net device passed in.");
+module_param_call(destroy, fcoe_destroy, NULL, NULL, S_IWUSR);
+__MODULE_PARM_TYPE(destroy, "string");
+MODULE_PARM_DESC(destroy, "Destroy fcoe fcoe");
-/* notification function from net device */
+/* notification function for packets from net device */
static struct notifier_block fcoe_notifier = {
.notifier_call = fcoe_device_notification,
};
-static struct scsi_transport_template *scsi_transport_fcoe_sw;
+/* notification function for CPU hotplug events */
+static struct notifier_block fcoe_cpu_notifier = {
+ .notifier_call = fcoe_cpu_callback,
+};
+
+static struct scsi_transport_template *fcoe_transport_template;
+static struct scsi_transport_template *fcoe_vport_transport_template;
+
+static int fcoe_vport_destroy(struct fc_vport *);
+static int fcoe_vport_create(struct fc_vport *, bool disabled);
+static int fcoe_vport_disable(struct fc_vport *, bool disable);
+static void fcoe_set_vport_symbolic_name(struct fc_vport *);
+
+static struct libfc_function_template fcoe_libfc_fcn_templ = {
+ .frame_send = fcoe_xmit,
+ .ddp_setup = fcoe_ddp_setup,
+ .ddp_done = fcoe_ddp_done,
+ .elsct_send = fcoe_elsct_send,
+ .get_lesb = fcoe_get_lesb,
+};
struct fc_function_template fcoe_transport_function = {
.show_host_node_name = 1,
@@ -123,6 +177,48 @@ struct fc_function_template fcoe_transport_function = {
.issue_fc_host_lip = fcoe_reset,
.terminate_rport_io = fc_rport_terminate_io,
+
+ .vport_create = fcoe_vport_create,
+ .vport_delete = fcoe_vport_destroy,
+ .vport_disable = fcoe_vport_disable,
+ .set_vport_symbolic_name = fcoe_set_vport_symbolic_name,
+
+ .bsg_request = fc_lport_bsg_request,
+};
+
+struct fc_function_template fcoe_vport_transport_function = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+
+ .dd_fcrport_size = sizeof(struct fc_rport_libfc_priv),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = fc_get_host_stats,
+ .issue_fc_host_lip = fcoe_reset,
+
+ .terminate_rport_io = fc_rport_terminate_io,
+
+ .bsg_request = fc_lport_bsg_request,
};
static struct scsi_host_template fcoe_shost_template = {
@@ -137,20 +233,17 @@ static struct scsi_host_template fcoe_shost_template = {
.change_queue_depth = fc_change_queue_depth,
.change_queue_type = fc_change_queue_type,
.this_id = -1,
- .cmd_per_lun = 32,
+ .cmd_per_lun = 3,
.can_queue = FCOE_MAX_OUTSTANDING_COMMANDS,
.use_clustering = ENABLE_CLUSTERING,
.sg_tablesize = SG_ALL,
.max_sectors = 0xffff,
};
-static int fcoe_fip_recv(struct sk_buff *skb, struct net_device *dev,
- struct packet_type *ptype,
- struct net_device *orig_dev);
/**
- * fcoe_interface_setup()
- * @fcoe: new fcoe_interface
- * @netdev : ptr to the associated netdevice struct
+ * fcoe_interface_setup() - Setup a FCoE interface
+ * @fcoe: The new FCoE interface
+ * @netdev: The net device that the fcoe interface is on
*
* Returns : 0 for success
* Locking: must be called with the RTNL mutex held
@@ -160,23 +253,36 @@ static int fcoe_interface_setup(struct fcoe_interface *fcoe,
{
struct fcoe_ctlr *fip = &fcoe->ctlr;
struct netdev_hw_addr *ha;
+ struct net_device *real_dev;
u8 flogi_maddr[ETH_ALEN];
+ const struct net_device_ops *ops;
fcoe->netdev = netdev;
+ /* Let LLD initialize for FCoE */
+ ops = netdev->netdev_ops;
+ if (ops->ndo_fcoe_enable) {
+ if (ops->ndo_fcoe_enable(netdev))
+ FCOE_NETDEV_DBG(netdev, "Failed to enable FCoE"
+ " specific feature for LLD.\n");
+ }
+
/* Do not support for bonding device */
if ((netdev->priv_flags & IFF_MASTER_ALB) ||
(netdev->priv_flags & IFF_SLAVE_INACTIVE) ||
(netdev->priv_flags & IFF_MASTER_8023AD)) {
+ FCOE_NETDEV_DBG(netdev, "Bonded interfaces not supported\n");
return -EOPNOTSUPP;
}
/* look for SAN MAC address, if multiple SAN MACs exist, only
* use the first one for SPMA */
+ real_dev = (netdev->priv_flags & IFF_802_1Q_VLAN) ?
+ vlan_dev_real_dev(netdev) : netdev;
rcu_read_lock();
- for_each_dev_addr(netdev, ha) {
+ for_each_dev_addr(real_dev, ha) {
if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
- (is_valid_ether_addr(fip->ctl_src_addr))) {
+ (is_valid_ether_addr(ha->addr))) {
memcpy(fip->ctl_src_addr, ha->addr, ETH_ALEN);
fip->spma = 1;
break;
@@ -216,19 +322,16 @@ static int fcoe_interface_setup(struct fcoe_interface *fcoe,
return 0;
}
-static void fcoe_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb);
-static void fcoe_update_src_mac(struct fcoe_ctlr *fip, u8 *old, u8 *new);
-static void fcoe_destroy_work(struct work_struct *work);
-
/**
- * fcoe_interface_create()
- * @netdev: network interface
+ * fcoe_interface_create() - Create a FCoE interface on a net device
+ * @netdev: The net device to create the FCoE interface on
*
* Returns: pointer to a struct fcoe_interface or NULL on error
*/
static struct fcoe_interface *fcoe_interface_create(struct net_device *netdev)
{
struct fcoe_interface *fcoe;
+ int err;
fcoe = kzalloc(sizeof(*fcoe), GFP_KERNEL);
if (!fcoe) {
@@ -245,15 +348,22 @@ static struct fcoe_interface *fcoe_interface_create(struct net_device *netdev)
fcoe_ctlr_init(&fcoe->ctlr);
fcoe->ctlr.send = fcoe_fip_send;
fcoe->ctlr.update_mac = fcoe_update_src_mac;
+ fcoe->ctlr.get_src_addr = fcoe_get_src_mac;
- fcoe_interface_setup(fcoe, netdev);
+ err = fcoe_interface_setup(fcoe, netdev);
+ if (err) {
+ fcoe_ctlr_destroy(&fcoe->ctlr);
+ kfree(fcoe);
+ dev_put(netdev);
+ return NULL;
+ }
return fcoe;
}
/**
- * fcoe_interface_cleanup() - clean up netdev configurations
- * @fcoe:
+ * fcoe_interface_cleanup() - Clean up a FCoE interface
+ * @fcoe: The FCoE interface to be cleaned up
*
* Caller must be holding the RTNL mutex
*/
@@ -262,6 +372,7 @@ void fcoe_interface_cleanup(struct fcoe_interface *fcoe)
struct net_device *netdev = fcoe->netdev;
struct fcoe_ctlr *fip = &fcoe->ctlr;
u8 flogi_maddr[ETH_ALEN];
+ const struct net_device_ops *ops;
/*
* Don't listen for Ethernet packets anymore.
@@ -276,16 +387,22 @@ void fcoe_interface_cleanup(struct fcoe_interface *fcoe)
/* Delete secondary MAC addresses */
memcpy(flogi_maddr, (u8[6]) FC_FCOE_FLOGI_MAC, ETH_ALEN);
dev_unicast_delete(netdev, flogi_maddr);
- if (!is_zero_ether_addr(fip->data_src_addr))
- dev_unicast_delete(netdev, fip->data_src_addr);
if (fip->spma)
dev_unicast_delete(netdev, fip->ctl_src_addr);
dev_mc_delete(netdev, FIP_ALL_ENODE_MACS, ETH_ALEN, 0);
+
+ /* Tell the LLD we are done w/ FCoE */
+ ops = netdev->netdev_ops;
+ if (ops->ndo_fcoe_disable) {
+ if (ops->ndo_fcoe_disable(netdev))
+ FCOE_NETDEV_DBG(netdev, "Failed to disable FCoE"
+ " specific feature for LLD.\n");
+ }
}
/**
* fcoe_interface_release() - fcoe_port kref release function
- * @kref: embedded reference count in an fcoe_interface struct
+ * @kref: Embedded reference count in an fcoe_interface struct
*/
static void fcoe_interface_release(struct kref *kref)
{
@@ -301,8 +418,8 @@ static void fcoe_interface_release(struct kref *kref)
}
/**
- * fcoe_interface_get()
- * @fcoe:
+ * fcoe_interface_get() - Get a reference to a FCoE interface
+ * @fcoe: The FCoE interface to be held
*/
static inline void fcoe_interface_get(struct fcoe_interface *fcoe)
{
@@ -310,8 +427,8 @@ static inline void fcoe_interface_get(struct fcoe_interface *fcoe)
}
/**
- * fcoe_interface_put()
- * @fcoe:
+ * fcoe_interface_put() - Put a reference to a FCoE interface
+ * @fcoe: The FCoE interface to be released
*/
static inline void fcoe_interface_put(struct fcoe_interface *fcoe)
{
@@ -319,15 +436,16 @@ static inline void fcoe_interface_put(struct fcoe_interface *fcoe)
}
/**
- * fcoe_fip_recv - handle a received FIP frame.
- * @skb: the receive skb
- * @dev: associated &net_device
- * @ptype: the &packet_type structure which was used to register this handler.
- * @orig_dev: original receive &net_device, in case @dev is a bond.
+ * fcoe_fip_recv() - Handler for received FIP frames
+ * @skb: The receive skb
+ * @netdev: The associated net device
+ * @ptype: The packet_type structure which was used to register this handler
+ * @orig_dev: The original net_device the the skb was received on.
+ * (in case dev is a bond)
*
* Returns: 0 for success
*/
-static int fcoe_fip_recv(struct sk_buff *skb, struct net_device *dev,
+static int fcoe_fip_recv(struct sk_buff *skb, struct net_device *netdev,
struct packet_type *ptype,
struct net_device *orig_dev)
{
@@ -339,9 +457,9 @@ static int fcoe_fip_recv(struct sk_buff *skb, struct net_device *dev,
}
/**
- * fcoe_fip_send() - send an Ethernet-encapsulated FIP frame.
- * @fip: FCoE controller.
- * @skb: FIP Packet.
+ * fcoe_fip_send() - Send an Ethernet-encapsulated FIP frame
+ * @fip: The FCoE controller
+ * @skb: The FIP packet to be sent
*/
static void fcoe_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
{
@@ -350,88 +468,101 @@ static void fcoe_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
}
/**
- * fcoe_update_src_mac() - Update Ethernet MAC filters.
- * @fip: FCoE controller.
- * @old: Unicast MAC address to delete if the MAC is non-zero.
- * @new: Unicast MAC address to add.
+ * fcoe_update_src_mac() - Update the Ethernet MAC filters
+ * @lport: The local port to update the source MAC on
+ * @addr: Unicast MAC address to add
*
* Remove any previously-set unicast MAC filter.
* Add secondary FCoE MAC address filter for our OUI.
*/
-static void fcoe_update_src_mac(struct fcoe_ctlr *fip, u8 *old, u8 *new)
+static void fcoe_update_src_mac(struct fc_lport *lport, u8 *addr)
{
- struct fcoe_interface *fcoe;
+ struct fcoe_port *port = lport_priv(lport);
+ struct fcoe_interface *fcoe = port->fcoe;
- fcoe = fcoe_from_ctlr(fip);
rtnl_lock();
- if (!is_zero_ether_addr(old))
- dev_unicast_delete(fcoe->netdev, old);
- dev_unicast_add(fcoe->netdev, new);
+ if (!is_zero_ether_addr(port->data_src_addr))
+ dev_unicast_delete(fcoe->netdev, port->data_src_addr);
+ if (!is_zero_ether_addr(addr))
+ dev_unicast_add(fcoe->netdev, addr);
+ memcpy(port->data_src_addr, addr, ETH_ALEN);
rtnl_unlock();
}
/**
- * fcoe_lport_config() - sets up the fc_lport
- * @lp: ptr to the fc_lport
+ * fcoe_get_src_mac() - return the Ethernet source address for an lport
+ * @lport: libfc lport
+ */
+static u8 *fcoe_get_src_mac(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+
+ return port->data_src_addr;
+}
+
+/**
+ * fcoe_lport_config() - Set up a local port
+ * @lport: The local port to be setup
*
* Returns: 0 for success
*/
-static int fcoe_lport_config(struct fc_lport *lp)
+static int fcoe_lport_config(struct fc_lport *lport)
{
- lp->link_up = 0;
- lp->qfull = 0;
- lp->max_retry_count = 3;
- lp->max_rport_retry_count = 3;
- lp->e_d_tov = 2 * 1000; /* FC-FS default */
- lp->r_a_tov = 2 * 2 * 1000;
- lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
- FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
-
- fc_lport_init_stats(lp);
+ lport->link_up = 0;
+ lport->qfull = 0;
+ lport->max_retry_count = 3;
+ lport->max_rport_retry_count = 3;
+ lport->e_d_tov = 2 * 1000; /* FC-FS default */
+ lport->r_a_tov = 2 * 2 * 1000;
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+ FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+ lport->does_npiv = 1;
+
+ fc_lport_init_stats(lport);
/* lport fc_lport related configuration */
- fc_lport_config(lp);
+ fc_lport_config(lport);
/* offload related configuration */
- lp->crc_offload = 0;
- lp->seq_offload = 0;
- lp->lro_enabled = 0;
- lp->lro_xid = 0;
- lp->lso_max = 0;
+ lport->crc_offload = 0;
+ lport->seq_offload = 0;
+ lport->lro_enabled = 0;
+ lport->lro_xid = 0;
+ lport->lso_max = 0;
return 0;
}
/**
- * fcoe_queue_timer() - fcoe queue timer
- * @lp: the fc_lport pointer
+ * fcoe_queue_timer() - The fcoe queue timer
+ * @lport: The local port
*
* Calls fcoe_check_wait_queue on timeout
- *
*/
-static void fcoe_queue_timer(ulong lp)
+static void fcoe_queue_timer(ulong lport)
{
- fcoe_check_wait_queue((struct fc_lport *)lp, NULL);
+ fcoe_check_wait_queue((struct fc_lport *)lport, NULL);
}
/**
- * fcoe_netdev_config() - Set up netdev for SW FCoE
- * @lp : ptr to the fc_lport
- * @netdev : ptr to the associated netdevice struct
+ * fcoe_netdev_config() - Set up net devive for SW FCoE
+ * @lport: The local port that is associated with the net device
+ * @netdev: The associated net device
*
- * Must be called after fcoe_lport_config() as it will use lport mutex
+ * Must be called after fcoe_lport_config() as it will use local port mutex
*
- * Returns : 0 for success
+ * Returns: 0 for success
*/
-static int fcoe_netdev_config(struct fc_lport *lp, struct net_device *netdev)
+static int fcoe_netdev_config(struct fc_lport *lport, struct net_device *netdev)
{
u32 mfs;
u64 wwnn, wwpn;
struct fcoe_interface *fcoe;
struct fcoe_port *port;
+ int vid = 0;
/* Setup lport private data to point to fcoe softc */
- port = lport_priv(lp);
+ port = lport_priv(lport);
fcoe = port->fcoe;
/*
@@ -439,86 +570,112 @@ static int fcoe_netdev_config(struct fc_lport *lp, struct net_device *netdev)
* user-configured limit. If the MFS is too low, fcoe_link_ok()
* will return 0, so do this first.
*/
- mfs = netdev->mtu - (sizeof(struct fcoe_hdr) +
- sizeof(struct fcoe_crc_eof));
- if (fc_set_mfs(lp, mfs))
+ mfs = netdev->mtu;
+ if (netdev->features & NETIF_F_FCOE_MTU) {
+ mfs = FCOE_MTU;
+ FCOE_NETDEV_DBG(netdev, "Supports FCOE_MTU of %d bytes\n", mfs);
+ }
+ mfs -= (sizeof(struct fcoe_hdr) + sizeof(struct fcoe_crc_eof));
+ if (fc_set_mfs(lport, mfs))
return -EINVAL;
/* offload features support */
if (netdev->features & NETIF_F_SG)
- lp->sg_supp = 1;
+ lport->sg_supp = 1;
if (netdev->features & NETIF_F_FCOE_CRC) {
- lp->crc_offload = 1;
+ lport->crc_offload = 1;
FCOE_NETDEV_DBG(netdev, "Supports FCCRC offload\n");
}
if (netdev->features & NETIF_F_FSO) {
- lp->seq_offload = 1;
- lp->lso_max = netdev->gso_max_size;
+ lport->seq_offload = 1;
+ lport->lso_max = netdev->gso_max_size;
FCOE_NETDEV_DBG(netdev, "Supports LSO for max len 0x%x\n",
- lp->lso_max);
+ lport->lso_max);
}
if (netdev->fcoe_ddp_xid) {
- lp->lro_enabled = 1;
- lp->lro_xid = netdev->fcoe_ddp_xid;
+ lport->lro_enabled = 1;
+ lport->lro_xid = netdev->fcoe_ddp_xid;
FCOE_NETDEV_DBG(netdev, "Supports LRO for max xid 0x%x\n",
- lp->lro_xid);
+ lport->lro_xid);
}
skb_queue_head_init(&port->fcoe_pending_queue);
port->fcoe_pending_queue_active = 0;
- setup_timer(&port->timer, fcoe_queue_timer, (unsigned long)lp);
+ setup_timer(&port->timer, fcoe_queue_timer, (unsigned long)lport);
- wwnn = fcoe_wwn_from_mac(netdev->dev_addr, 1, 0);
- fc_set_wwnn(lp, wwnn);
- /* XXX - 3rd arg needs to be vlan id */
- wwpn = fcoe_wwn_from_mac(netdev->dev_addr, 2, 0);
- fc_set_wwpn(lp, wwpn);
+ if (!lport->vport) {
+ /*
+ * Use NAA 1&2 (FC-FS Rev. 2.0, Sec. 15) to generate WWNN/WWPN:
+ * For WWNN, we use NAA 1 w/ bit 27-16 of word 0 as 0.
+ * For WWPN, we use NAA 2 w/ bit 27-16 of word 0 from VLAN ID
+ */
+ if (netdev->priv_flags & IFF_802_1Q_VLAN)
+ vid = vlan_dev_vlan_id(netdev);
+ wwnn = fcoe_wwn_from_mac(fcoe->ctlr.ctl_src_addr, 1, 0);
+ fc_set_wwnn(lport, wwnn);
+ wwpn = fcoe_wwn_from_mac(fcoe->ctlr.ctl_src_addr, 2, vid);
+ fc_set_wwpn(lport, wwpn);
+ }
return 0;
}
/**
- * fcoe_shost_config() - Sets up fc_lport->host
- * @lp : ptr to the fc_lport
- * @shost : ptr to the associated scsi host
- * @dev : device associated to scsi host
+ * fcoe_shost_config() - Set up the SCSI host associated with a local port
+ * @lport: The local port
+ * @shost: The SCSI host to associate with the local port
+ * @dev: The device associated with the SCSI host
*
* Must be called after fcoe_lport_config() and fcoe_netdev_config()
*
- * Returns : 0 for success
+ * Returns: 0 for success
*/
-static int fcoe_shost_config(struct fc_lport *lp, struct Scsi_Host *shost,
- struct device *dev)
+static int fcoe_shost_config(struct fc_lport *lport, struct Scsi_Host *shost,
+ struct device *dev)
{
int rc = 0;
/* lport scsi host config */
- lp->host = shost;
-
- lp->host->max_lun = FCOE_MAX_LUN;
- lp->host->max_id = FCOE_MAX_FCP_TARGET;
- lp->host->max_channel = 0;
- lp->host->transportt = scsi_transport_fcoe_sw;
+ lport->host->max_lun = FCOE_MAX_LUN;
+ lport->host->max_id = FCOE_MAX_FCP_TARGET;
+ lport->host->max_channel = 0;
+ if (lport->vport)
+ lport->host->transportt = fcoe_vport_transport_template;
+ else
+ lport->host->transportt = fcoe_transport_template;
/* add the new host to the SCSI-ml */
- rc = scsi_add_host(lp->host, dev);
+ rc = scsi_add_host(lport->host, dev);
if (rc) {
- FCOE_NETDEV_DBG(fcoe_netdev(lp), "fcoe_shost_config: "
+ FCOE_NETDEV_DBG(fcoe_netdev(lport), "fcoe_shost_config: "
"error on scsi_add_host\n");
return rc;
}
- sprintf(fc_host_symbolic_name(lp->host), "%s v%s over %s",
- FCOE_NAME, FCOE_VERSION,
- fcoe_netdev(lp)->name);
+
+ if (!lport->vport)
+ fc_host_max_npiv_vports(lport->host) = USHORT_MAX;
+
+ snprintf(fc_host_symbolic_name(lport->host), FC_SYMBOLIC_NAME_SIZE,
+ "%s v%s over %s", FCOE_NAME, FCOE_VERSION,
+ fcoe_netdev(lport)->name);
return 0;
}
-/*
- * fcoe_oem_match() - match for read types IO
- * @fp: the fc_frame for new IO.
+/**
+ * fcoe_oem_match() - The match routine for the offloaded exchange manager
+ * @fp: The I/O frame
+ *
+ * This routine will be associated with an exchange manager (EM). When
+ * the libfc exchange handling code is looking for an EM to use it will
+ * call this routine and pass it the frame that it wishes to send. This
+ * routine will return True if the associated EM is to be used and False
+ * if the echange code should continue looking for an EM.
*
- * Returns : true for read types IO, otherwise returns false.
+ * The offload EM that this routine is associated with will handle any
+ * packets that are for SCSI read requests.
+ *
+ * Returns: True for read types I/O, otherwise returns false.
*/
bool fcoe_oem_match(struct fc_frame *fp)
{
@@ -527,14 +684,14 @@ bool fcoe_oem_match(struct fc_frame *fp)
}
/**
- * fcoe_em_config() - allocates em for this lport
- * @lp: the fcoe that em is to allocated for
+ * fcoe_em_config() - Allocate and configure an exchange manager
+ * @lport: The local port that the new EM will be associated with
*
- * Returns : 0 on success
+ * Returns: 0 on success
*/
-static inline int fcoe_em_config(struct fc_lport *lp)
+static inline int fcoe_em_config(struct fc_lport *lport)
{
- struct fcoe_port *port = lport_priv(lp);
+ struct fcoe_port *port = lport_priv(lport);
struct fcoe_interface *fcoe = port->fcoe;
struct fcoe_interface *oldfcoe = NULL;
struct net_device *old_real_dev, *cur_real_dev;
@@ -545,8 +702,9 @@ static inline int fcoe_em_config(struct fc_lport *lp)
* Check if need to allocate an em instance for
* offload exchange ids to be shared across all VN_PORTs/lport.
*/
- if (!lp->lro_enabled || !lp->lro_xid || (lp->lro_xid >= max_xid)) {
- lp->lro_xid = 0;
+ if (!lport->lro_enabled || !lport->lro_xid ||
+ (lport->lro_xid >= max_xid)) {
+ lport->lro_xid = 0;
goto skip_oem;
}
@@ -572,16 +730,16 @@ static inline int fcoe_em_config(struct fc_lport *lp)
}
if (fcoe->oem) {
- if (!fc_exch_mgr_add(lp, fcoe->oem, fcoe_oem_match)) {
+ if (!fc_exch_mgr_add(lport, fcoe->oem, fcoe_oem_match)) {
printk(KERN_ERR "fcoe_em_config: failed to add "
"offload em:%p on interface:%s\n",
fcoe->oem, fcoe->netdev->name);
return -ENOMEM;
}
} else {
- fcoe->oem = fc_exch_mgr_alloc(lp, FC_CLASS_3,
- FCOE_MIN_XID, lp->lro_xid,
- fcoe_oem_match);
+ fcoe->oem = fc_exch_mgr_alloc(lport, FC_CLASS_3,
+ FCOE_MIN_XID, lport->lro_xid,
+ fcoe_oem_match);
if (!fcoe->oem) {
printk(KERN_ERR "fcoe_em_config: failed to allocate "
"em for offload exches on interface:%s\n",
@@ -593,10 +751,10 @@ static inline int fcoe_em_config(struct fc_lport *lp)
/*
* Exclude offload EM xid range from next EM xid range.
*/
- min_xid += lp->lro_xid + 1;
+ min_xid += lport->lro_xid + 1;
skip_oem:
- if (!fc_exch_mgr_alloc(lp, FC_CLASS_3, min_xid, max_xid, NULL)) {
+ if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, min_xid, max_xid, NULL)) {
printk(KERN_ERR "fcoe_em_config: failed to "
"allocate em on interface %s\n", fcoe->netdev->name);
return -ENOMEM;
@@ -606,8 +764,8 @@ skip_oem:
}
/**
- * fcoe_if_destroy() - FCoE software HBA tear-down function
- * @lport: fc_lport to destroy
+ * fcoe_if_destroy() - Tear down a SW FCoE instance
+ * @lport: The local port to be destroyed
*/
static void fcoe_if_destroy(struct fc_lport *lport)
{
@@ -630,6 +788,11 @@ static void fcoe_if_destroy(struct fc_lport *lport)
/* Free existing transmit skbs */
fcoe_clean_pending_queue(lport);
+ rtnl_lock();
+ if (!is_zero_ether_addr(port->data_src_addr))
+ dev_unicast_delete(netdev, port->data_src_addr);
+ rtnl_unlock();
+
/* receives may not be stopped until after this */
fcoe_interface_put(fcoe);
@@ -650,82 +813,89 @@ static void fcoe_if_destroy(struct fc_lport *lport)
scsi_host_put(lport->host);
}
-/*
- * fcoe_ddp_setup - calls LLD's ddp_setup through net_device
- * @lp: the corresponding fc_lport
- * @xid: the exchange id for this ddp transfer
- * @sgl: the scatterlist describing this transfer
- * @sgc: number of sg items
+/**
+ * fcoe_ddp_setup() - Call a LLD's ddp_setup through the net device
+ * @lport: The local port to setup DDP for
+ * @xid: The exchange ID for this DDP transfer
+ * @sgl: The scatterlist describing this transfer
+ * @sgc: The number of sg items
*
- * Returns : 0 no ddp
+ * Returns: 0 if the DDP context was not configured
*/
-static int fcoe_ddp_setup(struct fc_lport *lp, u16 xid,
- struct scatterlist *sgl, unsigned int sgc)
+static int fcoe_ddp_setup(struct fc_lport *lport, u16 xid,
+ struct scatterlist *sgl, unsigned int sgc)
{
- struct net_device *n = fcoe_netdev(lp);
+ struct net_device *netdev = fcoe_netdev(lport);
- if (n->netdev_ops && n->netdev_ops->ndo_fcoe_ddp_setup)
- return n->netdev_ops->ndo_fcoe_ddp_setup(n, xid, sgl, sgc);
+ if (netdev->netdev_ops->ndo_fcoe_ddp_setup)
+ return netdev->netdev_ops->ndo_fcoe_ddp_setup(netdev,
+ xid, sgl,
+ sgc);
return 0;
}
-/*
- * fcoe_ddp_done - calls LLD's ddp_done through net_device
- * @lp: the corresponding fc_lport
- * @xid: the exchange id for this ddp transfer
+/**
+ * fcoe_ddp_done() - Call a LLD's ddp_done through the net device
+ * @lport: The local port to complete DDP on
+ * @xid: The exchange ID for this DDP transfer
*
- * Returns : the length of data that have been completed by ddp
+ * Returns: the length of data that have been completed by DDP
*/
-static int fcoe_ddp_done(struct fc_lport *lp, u16 xid)
+static int fcoe_ddp_done(struct fc_lport *lport, u16 xid)
{
- struct net_device *n = fcoe_netdev(lp);
+ struct net_device *netdev = fcoe_netdev(lport);
- if (n->netdev_ops && n->netdev_ops->ndo_fcoe_ddp_done)
- return n->netdev_ops->ndo_fcoe_ddp_done(n, xid);
+ if (netdev->netdev_ops->ndo_fcoe_ddp_done)
+ return netdev->netdev_ops->ndo_fcoe_ddp_done(netdev, xid);
return 0;
}
-static struct libfc_function_template fcoe_libfc_fcn_templ = {
- .frame_send = fcoe_xmit,
- .ddp_setup = fcoe_ddp_setup,
- .ddp_done = fcoe_ddp_done,
-};
-
/**
- * fcoe_if_create() - this function creates the fcoe port
- * @fcoe: fcoe_interface structure to create an fc_lport instance on
- * @parent: device pointer to be the parent in sysfs for the SCSI host
+ * fcoe_if_create() - Create a FCoE instance on an interface
+ * @fcoe: The FCoE interface to create a local port on
+ * @parent: The device pointer to be the parent in sysfs for the SCSI host
+ * @npiv: Indicates if the port is a vport or not
*
- * Creates fc_lport struct and scsi_host for lport, configures lport.
+ * Creates a fc_lport instance and a Scsi_Host instance and configure them.
*
- * Returns : The allocated fc_lport or an error pointer
+ * Returns: The allocated fc_lport or an error pointer
*/
static struct fc_lport *fcoe_if_create(struct fcoe_interface *fcoe,
- struct device *parent)
+ struct device *parent, int npiv)
{
- int rc;
+ struct net_device *netdev = fcoe->netdev;
struct fc_lport *lport = NULL;
struct fcoe_port *port;
struct Scsi_Host *shost;
- struct net_device *netdev = fcoe->netdev;
+ int rc;
+ /*
+ * parent is only a vport if npiv is 1,
+ * but we'll only use vport in that case so go ahead and set it
+ */
+ struct fc_vport *vport = dev_to_vport(parent);
FCOE_NETDEV_DBG(netdev, "Create Interface\n");
- shost = libfc_host_alloc(&fcoe_shost_template,
- sizeof(struct fcoe_port));
- if (!shost) {
+ if (!npiv) {
+ lport = libfc_host_alloc(&fcoe_shost_template,
+ sizeof(struct fcoe_port));
+ } else {
+ lport = libfc_vport_create(vport,
+ sizeof(struct fcoe_port));
+ }
+ if (!lport) {
FCOE_NETDEV_DBG(netdev, "Could not allocate host structure\n");
rc = -ENOMEM;
goto out;
}
- lport = shost_priv(shost);
+ shost = lport->host;
port = lport_priv(lport);
port->lport = lport;
port->fcoe = fcoe;
INIT_WORK(&port->destroy_work, fcoe_destroy_work);
- /* configure fc_lport, e.g., em */
+ /* configure a fc_lport including the exchange manager */
rc = fcoe_lport_config(lport);
if (rc) {
FCOE_NETDEV_DBG(netdev, "Could not configure lport for the "
@@ -733,6 +903,13 @@ static struct fc_lport *fcoe_if_create(struct fcoe_interface *fcoe,
goto out_host_put;
}
+ if (npiv) {
+ FCOE_NETDEV_DBG(netdev, "Setting vport names, 0x%llX 0x%llX\n",
+ vport->node_name, vport->port_name);
+ fc_set_wwnn(lport, vport->node_name);
+ fc_set_wwpn(lport, vport->port_name);
+ }
+
/* configure lport network properties */
rc = fcoe_netdev_config(lport, netdev);
if (rc) {
@@ -757,21 +934,24 @@ static struct fc_lport *fcoe_if_create(struct fcoe_interface *fcoe,
goto out_lp_destroy;
}
- /*
- * fcoe_em_alloc() and fcoe_hostlist_add() both
- * need to be atomic with respect to other changes to the hostlist
- * since fcoe_em_alloc() looks for an existing EM
- * instance on host list updated by fcoe_hostlist_add().
- *
- * This is currently handled through the fcoe_config_mutex begin held.
- */
+ if (!npiv) {
+ /*
+ * fcoe_em_alloc() and fcoe_hostlist_add() both
+ * need to be atomic with respect to other changes to the
+ * hostlist since fcoe_em_alloc() looks for an existing EM
+ * instance on host list updated by fcoe_hostlist_add().
+ *
+ * This is currently handled through the fcoe_config_mutex
+ * begin held.
+ */
- /* lport exch manager allocation */
- rc = fcoe_em_config(lport);
- if (rc) {
- FCOE_NETDEV_DBG(netdev, "Could not configure the EM for the "
- "interface\n");
- goto out_lp_destroy;
+ /* lport exch manager allocation */
+ rc = fcoe_em_config(lport);
+ if (rc) {
+ FCOE_NETDEV_DBG(netdev, "Could not configure the EM "
+ "for the interface\n");
+ goto out_lp_destroy;
+ }
}
fcoe_interface_get(fcoe);
@@ -786,17 +966,20 @@ out:
}
/**
- * fcoe_if_init() - attach to scsi transport
+ * fcoe_if_init() - Initialization routine for fcoe.ko
+ *
+ * Attaches the SW FCoE transport to the FC transport
*
- * Returns : 0 on success
+ * Returns: 0 on success
*/
static int __init fcoe_if_init(void)
{
/* attach to scsi transport */
- scsi_transport_fcoe_sw =
- fc_attach_transport(&fcoe_transport_function);
+ fcoe_transport_template = fc_attach_transport(&fcoe_transport_function);
+ fcoe_vport_transport_template =
+ fc_attach_transport(&fcoe_vport_transport_function);
- if (!scsi_transport_fcoe_sw) {
+ if (!fcoe_transport_template) {
printk(KERN_ERR "fcoe: Failed to attach to the FC transport\n");
return -ENODEV;
}
@@ -805,20 +988,24 @@ static int __init fcoe_if_init(void)
}
/**
- * fcoe_if_exit() - detach from scsi transport
+ * fcoe_if_exit() - Tear down fcoe.ko
+ *
+ * Detaches the SW FCoE transport from the FC transport
*
- * Returns : 0 on success
+ * Returns: 0 on success
*/
int __exit fcoe_if_exit(void)
{
- fc_release_transport(scsi_transport_fcoe_sw);
- scsi_transport_fcoe_sw = NULL;
+ fc_release_transport(fcoe_transport_template);
+ fc_release_transport(fcoe_vport_transport_template);
+ fcoe_transport_template = NULL;
+ fcoe_vport_transport_template = NULL;
return 0;
}
/**
- * fcoe_percpu_thread_create() - Create a receive thread for an online cpu
- * @cpu: cpu index for the online cpu
+ * fcoe_percpu_thread_create() - Create a receive thread for an online CPU
+ * @cpu: The CPU index of the CPU to create a receive thread for
*/
static void fcoe_percpu_thread_create(unsigned int cpu)
{
@@ -841,8 +1028,8 @@ static void fcoe_percpu_thread_create(unsigned int cpu)
}
/**
- * fcoe_percpu_thread_destroy() - removes the rx thread for the given cpu
- * @cpu: cpu index the rx thread is to be removed
+ * fcoe_percpu_thread_destroy() - Remove the receive thread of a CPU
+ * @cpu: The CPU index of the CPU whose receive thread is to be destroyed
*
* Destroys a per-CPU Rx thread. Any pending skbs are moved to the
* current CPU's Rx thread. If the thread being destroyed is bound to
@@ -890,7 +1077,7 @@ static void fcoe_percpu_thread_destroy(unsigned int cpu)
} else {
/*
* The targeted CPU is not initialized and cannot accept
- * new skbs. Unlock the targeted CPU and drop the skbs
+ * new skbs. Unlock the targeted CPU and drop the skbs
* on the CPU that is going offline.
*/
while ((skb = __skb_dequeue(&p->fcoe_rx_list)) != NULL)
@@ -931,12 +1118,12 @@ static void fcoe_percpu_thread_destroy(unsigned int cpu)
}
/**
- * fcoe_cpu_callback() - fcoe cpu hotplug event callback
- * @nfb: callback data block
- * @action: event triggering the callback
- * @hcpu: index for the cpu of this event
+ * fcoe_cpu_callback() - Handler for CPU hotplug events
+ * @nfb: The callback data block
+ * @action: The event triggering the callback
+ * @hcpu: The index of the CPU that the event is for
*
- * This creates or destroys per cpu data for fcoe
+ * This creates or destroys per-CPU data for fcoe
*
* Returns NOTIFY_OK always.
*/
@@ -962,25 +1149,22 @@ static int fcoe_cpu_callback(struct notifier_block *nfb,
return NOTIFY_OK;
}
-static struct notifier_block fcoe_cpu_notifier = {
- .notifier_call = fcoe_cpu_callback,
-};
-
/**
- * fcoe_rcv() - this is the fcoe receive function called by NET_RX_SOFTIRQ
- * @skb: the receive skb
- * @dev: associated net device
- * @ptype: context
- * @olddev: last device
+ * fcoe_rcv() - Receive packets from a net device
+ * @skb: The received packet
+ * @netdev: The net device that the packet was received on
+ * @ptype: The packet type context
+ * @olddev: The last device net device
*
- * this function will receive the packet and build fc frame and pass it up
+ * This routine is called by NET_RX_SOFTIRQ. It receives a packet, builds a
+ * FC frame and passes the frame to libfc.
*
* Returns: 0 for success
*/
-int fcoe_rcv(struct sk_buff *skb, struct net_device *dev,
+int fcoe_rcv(struct sk_buff *skb, struct net_device *netdev,
struct packet_type *ptype, struct net_device *olddev)
{
- struct fc_lport *lp;
+ struct fc_lport *lport;
struct fcoe_rcv_info *fr;
struct fcoe_interface *fcoe;
struct fc_frame_header *fh;
@@ -988,15 +1172,15 @@ int fcoe_rcv(struct sk_buff *skb, struct net_device *dev,
unsigned int cpu;
fcoe = container_of(ptype, struct fcoe_interface, fcoe_packet_type);
- lp = fcoe->ctlr.lp;
- if (unlikely(lp == NULL)) {
- FCOE_NETDEV_DBG(dev, "Cannot find hba structure");
+ lport = fcoe->ctlr.lp;
+ if (unlikely(!lport)) {
+ FCOE_NETDEV_DBG(netdev, "Cannot find hba structure");
goto err2;
}
- if (!lp->link_up)
+ if (!lport->link_up)
goto err2;
- FCOE_NETDEV_DBG(dev, "skb_info: len:%d data_len:%d head:%p "
+ FCOE_NETDEV_DBG(netdev, "skb_info: len:%d data_len:%d head:%p "
"data:%p tail:%p end:%p sum:%d dev:%s",
skb->len, skb->data_len, skb->head, skb->data,
skb_tail_pointer(skb), skb_end_pointer(skb),
@@ -1004,7 +1188,7 @@ int fcoe_rcv(struct sk_buff *skb, struct net_device *dev,
/* check for FCOE packet type */
if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
- FCOE_NETDEV_DBG(dev, "Wrong FC type frame");
+ FCOE_NETDEV_DBG(netdev, "Wrong FC type frame");
goto err;
}
@@ -1013,14 +1197,14 @@ int fcoe_rcv(struct sk_buff *skb, struct net_device *dev,
* and FC headers are pulled into the linear data area.
*/
if (unlikely((skb->len < FCOE_MIN_FRAME) ||
- !pskb_may_pull(skb, FCOE_HEADER_LEN)))
+ !pskb_may_pull(skb, FCOE_HEADER_LEN)))
goto err;
skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
fh = (struct fc_frame_header *) skb_transport_header(skb);
fr = fcoe_dev_from_skb(skb);
- fr->fr_dev = lp;
+ fr->fr_dev = lport;
fr->ptype = ptype;
/*
@@ -1042,7 +1226,7 @@ int fcoe_rcv(struct sk_buff *skb, struct net_device *dev,
* the first CPU now. For non-SMP systems this
* will check the same CPU twice.
*/
- FCOE_NETDEV_DBG(dev, "CPU is online, but no receive thread "
+ FCOE_NETDEV_DBG(netdev, "CPU is online, but no receive thread "
"ready for incoming skb- using first online "
"CPU.\n");
@@ -1061,15 +1245,29 @@ int fcoe_rcv(struct sk_buff *skb, struct net_device *dev,
* this skb. We also have this receive thread locked,
* so we're free to queue skbs into it's queue.
*/
- __skb_queue_tail(&fps->fcoe_rx_list, skb);
- if (fps->fcoe_rx_list.qlen == 1)
- wake_up_process(fps->thread);
- spin_unlock_bh(&fps->fcoe_rx_list.lock);
+ /* If this is a SCSI-FCP frame, and this is already executing on the
+ * correct CPU, and the queue for this CPU is empty, then go ahead
+ * and process the frame directly in the softirq context.
+ * This lets us process completions without context switching from the
+ * NET_RX softirq, to our receive processing thread, and then back to
+ * BLOCK softirq context.
+ */
+ if (fh->fh_type == FC_TYPE_FCP &&
+ cpu == smp_processor_id() &&
+ skb_queue_empty(&fps->fcoe_rx_list)) {
+ spin_unlock_bh(&fps->fcoe_rx_list.lock);
+ fcoe_recv_frame(skb);
+ } else {
+ __skb_queue_tail(&fps->fcoe_rx_list, skb);
+ if (fps->fcoe_rx_list.qlen == 1)
+ wake_up_process(fps->thread);
+ spin_unlock_bh(&fps->fcoe_rx_list.lock);
+ }
return 0;
err:
- fc_lport_get_stats(lp)->ErrorFrames++;
+ fc_lport_get_stats(lport)->ErrorFrames++;
err2:
kfree_skb(skb);
@@ -1077,17 +1275,21 @@ err2:
}
/**
- * fcoe_start_io() - pass to netdev to start xmit for fcoe
- * @skb: the skb to be xmitted
+ * fcoe_start_io() - Start FCoE I/O
+ * @skb: The packet to be transmitted
+ *
+ * This routine is called from the net device to start transmitting
+ * FCoE packets.
*
* Returns: 0 for success
*/
static inline int fcoe_start_io(struct sk_buff *skb)
{
+ struct sk_buff *nskb;
int rc;
- skb_get(skb);
- rc = dev_queue_xmit(skb);
+ nskb = skb_clone(skb, GFP_ATOMIC);
+ rc = dev_queue_xmit(nskb);
if (rc != 0)
return rc;
kfree_skb(skb);
@@ -1095,9 +1297,15 @@ static inline int fcoe_start_io(struct sk_buff *skb)
}
/**
- * fcoe_get_paged_crc_eof() - in case we need to alloc a page for crc_eof
- * @skb: the skb to be xmitted
- * @tlen: total len
+ * fcoe_get_paged_crc_eof() - Allocate a page to be used for the trailer CRC
+ * @skb: The packet to be transmitted
+ * @tlen: The total length of the trailer
+ *
+ * This routine allocates a page for frame trailers. The page is re-used if
+ * there is enough room left on it for the current trailer. If there isn't
+ * enough buffer left a new page is allocated for the trailer. Reference to
+ * the page from this function as well as the skbs using the page fragments
+ * ensure that the page is freed at the appropriate time.
*
* Returns: 0 for success
*/
@@ -1136,11 +1344,12 @@ static int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen)
}
/**
- * fcoe_fc_crc() - calculates FC CRC in this fcoe skb
- * @fp: the fc_frame containing data to be checksummed
+ * fcoe_fc_crc() - Calculates the CRC for a given frame
+ * @fp: The frame to be checksumed
+ *
+ * This uses crc32() routine to calculate the CRC for a frame
*
- * This uses crc32() to calculate the crc for port frame
- * Return : 32 bit crc
+ * Return: The 32 bit CRC value
*/
u32 fcoe_fc_crc(struct fc_frame *fp)
{
@@ -1171,13 +1380,13 @@ u32 fcoe_fc_crc(struct fc_frame *fp)
}
/**
- * fcoe_xmit() - FCoE frame transmit function
- * @lp: the associated local fcoe
- * @fp: the fc_frame to be transmitted
+ * fcoe_xmit() - Transmit a FCoE frame
+ * @lport: The local port that the frame is to be transmitted for
+ * @fp: The frame to be transmitted
*
- * Return : 0 for success
+ * Return: 0 for success
*/
-int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
+int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp)
{
int wlen;
u32 crc;
@@ -1189,7 +1398,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
unsigned int hlen; /* header length implies the version */
unsigned int tlen; /* trailer length */
unsigned int elen; /* eth header, may include vlan */
- struct fcoe_port *port = lport_priv(lp);
+ struct fcoe_port *port = lport_priv(lport);
struct fcoe_interface *fcoe = port->fcoe;
u8 sof, eof;
struct fcoe_hdr *hp;
@@ -1200,13 +1409,13 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
skb = fp_skb(fp);
wlen = skb->len / FCOE_WORD_TO_BYTE;
- if (!lp->link_up) {
+ if (!lport->link_up) {
kfree_skb(skb);
return 0;
}
if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ) &&
- fcoe_ctlr_els_send(&fcoe->ctlr, skb))
+ fcoe_ctlr_els_send(&fcoe->ctlr, lport, skb))
return 0;
sof = fr_sof(fp);
@@ -1218,7 +1427,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
/* crc offload */
- if (likely(lp->crc_offload)) {
+ if (likely(lport->crc_offload)) {
skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum_start = skb_headroom(skb);
skb->csum_offset = skb->len;
@@ -1271,7 +1480,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
if (unlikely(fcoe->ctlr.flogi_oxid != FC_XID_UNKNOWN))
memcpy(eh->h_source, fcoe->ctlr.ctl_src_addr, ETH_ALEN);
else
- memcpy(eh->h_source, fcoe->ctlr.data_src_addr, ETH_ALEN);
+ memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
hp = (struct fcoe_hdr *)(eh + 1);
memset(hp, 0, sizeof(*hp));
@@ -1280,7 +1489,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
hp->fcoe_sof = sof;
/* fcoe lso, mss is in max_payload which is non-zero for FCP data */
- if (lp->seq_offload && fr_max_payload(fp)) {
+ if (lport->seq_offload && fr_max_payload(fp)) {
skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
skb_shinfo(skb)->gso_size = fr_max_payload(fp);
} else {
@@ -1288,23 +1497,23 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
skb_shinfo(skb)->gso_size = 0;
}
/* update tx stats: regardless if LLD fails */
- stats = fc_lport_get_stats(lp);
+ stats = fc_lport_get_stats(lport);
stats->TxFrames++;
stats->TxWords += wlen;
/* send down to lld */
- fr_dev(fp) = lp;
+ fr_dev(fp) = lport;
if (port->fcoe_pending_queue.qlen)
- fcoe_check_wait_queue(lp, skb);
+ fcoe_check_wait_queue(lport, skb);
else if (fcoe_start_io(skb))
- fcoe_check_wait_queue(lp, skb);
+ fcoe_check_wait_queue(lport, skb);
return 0;
}
/**
- * fcoe_percpu_flush_done() - Indicate percpu queue flush completion.
- * @skb: the skb being completed.
+ * fcoe_percpu_flush_done() - Indicate per-CPU queue flush completion
+ * @skb: The completed skb (argument required by destructor)
*/
static void fcoe_percpu_flush_done(struct sk_buff *skb)
{
@@ -1312,26 +1521,134 @@ static void fcoe_percpu_flush_done(struct sk_buff *skb)
}
/**
- * fcoe_percpu_receive_thread() - recv thread per cpu
- * @arg: ptr to the fcoe per cpu struct
- *
- * Return: 0 for success
+ * fcoe_recv_frame() - process a single received frame
+ * @skb: frame to process
*/
-int fcoe_percpu_receive_thread(void *arg)
+static void fcoe_recv_frame(struct sk_buff *skb)
{
- struct fcoe_percpu_s *p = arg;
u32 fr_len;
- struct fc_lport *lp;
+ struct fc_lport *lport;
struct fcoe_rcv_info *fr;
struct fcoe_dev_stats *stats;
struct fc_frame_header *fh;
- struct sk_buff *skb;
struct fcoe_crc_eof crc_eof;
struct fc_frame *fp;
u8 *mac = NULL;
struct fcoe_port *port;
struct fcoe_hdr *hp;
+ fr = fcoe_dev_from_skb(skb);
+ lport = fr->fr_dev;
+ if (unlikely(!lport)) {
+ if (skb->destructor != fcoe_percpu_flush_done)
+ FCOE_NETDEV_DBG(skb->dev, "NULL lport in skb");
+ kfree_skb(skb);
+ return;
+ }
+
+ FCOE_NETDEV_DBG(skb->dev, "skb_info: len:%d data_len:%d "
+ "head:%p data:%p tail:%p end:%p sum:%d dev:%s",
+ skb->len, skb->data_len,
+ skb->head, skb->data, skb_tail_pointer(skb),
+ skb_end_pointer(skb), skb->csum,
+ skb->dev ? skb->dev->name : "<NULL>");
+
+ /*
+ * Save source MAC address before discarding header.
+ */
+ port = lport_priv(lport);
+ if (skb_is_nonlinear(skb))
+ skb_linearize(skb); /* not ideal */
+ mac = eth_hdr(skb)->h_source;
+
+ /*
+ * Frame length checks and setting up the header pointers
+ * was done in fcoe_rcv already.
+ */
+ hp = (struct fcoe_hdr *) skb_network_header(skb);
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+
+ stats = fc_lport_get_stats(lport);
+ if (unlikely(FC_FCOE_DECAPS_VER(hp) != FC_FCOE_VER)) {
+ if (stats->ErrorFrames < 5)
+ printk(KERN_WARNING "fcoe: FCoE version "
+ "mismatch: The frame has "
+ "version %x, but the "
+ "initiator supports version "
+ "%x\n", FC_FCOE_DECAPS_VER(hp),
+ FC_FCOE_VER);
+ stats->ErrorFrames++;
+ kfree_skb(skb);
+ return;
+ }
+
+ skb_pull(skb, sizeof(struct fcoe_hdr));
+ fr_len = skb->len - sizeof(struct fcoe_crc_eof);
+
+ stats->RxFrames++;
+ stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
+
+ fp = (struct fc_frame *)skb;
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = hp->fcoe_sof;
+
+ /* Copy out the CRC and EOF trailer for access */
+ if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
+ kfree_skb(skb);
+ return;
+ }
+ fr_eof(fp) = crc_eof.fcoe_eof;
+ fr_crc(fp) = crc_eof.fcoe_crc32;
+ if (pskb_trim(skb, fr_len)) {
+ kfree_skb(skb);
+ return;
+ }
+
+ /*
+ * We only check CRC if no offload is available and if it is
+ * it's solicited data, in which case, the FCP layer would
+ * check it during the copy.
+ */
+ if (lport->crc_offload &&
+ skb->ip_summed == CHECKSUM_UNNECESSARY)
+ fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
+ else
+ fr_flags(fp) |= FCPHF_CRC_UNCHECKED;
+
+ fh = fc_frame_header_get(fp);
+ if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
+ fh->fh_type == FC_TYPE_FCP) {
+ fc_exch_recv(lport, fp);
+ return;
+ }
+ if (fr_flags(fp) & FCPHF_CRC_UNCHECKED) {
+ if (le32_to_cpu(fr_crc(fp)) !=
+ ~crc32(~0, skb->data, fr_len)) {
+ if (stats->InvalidCRCCount < 5)
+ printk(KERN_WARNING "fcoe: dropping "
+ "frame with CRC error\n");
+ stats->InvalidCRCCount++;
+ stats->ErrorFrames++;
+ fc_frame_free(fp);
+ return;
+ }
+ fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
+ }
+ fc_exch_recv(lport, fp);
+}
+
+/**
+ * fcoe_percpu_receive_thread() - The per-CPU packet receive thread
+ * @arg: The per-CPU context
+ *
+ * Return: 0 for success
+ */
+int fcoe_percpu_receive_thread(void *arg)
+{
+ struct fcoe_percpu_s *p = arg;
+ struct sk_buff *skb;
+
set_user_nice(current, -20);
while (!kthread_should_stop()) {
@@ -1347,129 +1664,27 @@ int fcoe_percpu_receive_thread(void *arg)
spin_lock_bh(&p->fcoe_rx_list.lock);
}
spin_unlock_bh(&p->fcoe_rx_list.lock);
- fr = fcoe_dev_from_skb(skb);
- lp = fr->fr_dev;
- if (unlikely(lp == NULL)) {
- if (skb->destructor != fcoe_percpu_flush_done)
- FCOE_NETDEV_DBG(skb->dev, "NULL lport in skb");
- kfree_skb(skb);
- continue;
- }
-
- FCOE_NETDEV_DBG(skb->dev, "skb_info: len:%d data_len:%d "
- "head:%p data:%p tail:%p end:%p sum:%d dev:%s",
- skb->len, skb->data_len,
- skb->head, skb->data, skb_tail_pointer(skb),
- skb_end_pointer(skb), skb->csum,
- skb->dev ? skb->dev->name : "<NULL>");
-
- /*
- * Save source MAC address before discarding header.
- */
- port = lport_priv(lp);
- if (skb_is_nonlinear(skb))
- skb_linearize(skb); /* not ideal */
- mac = eth_hdr(skb)->h_source;
-
- /*
- * Frame length checks and setting up the header pointers
- * was done in fcoe_rcv already.
- */
- hp = (struct fcoe_hdr *) skb_network_header(skb);
- fh = (struct fc_frame_header *) skb_transport_header(skb);
-
- stats = fc_lport_get_stats(lp);
- if (unlikely(FC_FCOE_DECAPS_VER(hp) != FC_FCOE_VER)) {
- if (stats->ErrorFrames < 5)
- printk(KERN_WARNING "fcoe: FCoE version "
- "mismatch: The frame has "
- "version %x, but the "
- "initiator supports version "
- "%x\n", FC_FCOE_DECAPS_VER(hp),
- FC_FCOE_VER);
- stats->ErrorFrames++;
- kfree_skb(skb);
- continue;
- }
-
- skb_pull(skb, sizeof(struct fcoe_hdr));
- fr_len = skb->len - sizeof(struct fcoe_crc_eof);
-
- stats->RxFrames++;
- stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
-
- fp = (struct fc_frame *)skb;
- fc_frame_init(fp);
- fr_dev(fp) = lp;
- fr_sof(fp) = hp->fcoe_sof;
-
- /* Copy out the CRC and EOF trailer for access */
- if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
- kfree_skb(skb);
- continue;
- }
- fr_eof(fp) = crc_eof.fcoe_eof;
- fr_crc(fp) = crc_eof.fcoe_crc32;
- if (pskb_trim(skb, fr_len)) {
- kfree_skb(skb);
- continue;
- }
-
- /*
- * We only check CRC if no offload is available and if it is
- * it's solicited data, in which case, the FCP layer would
- * check it during the copy.
- */
- if (lp->crc_offload && skb->ip_summed == CHECKSUM_UNNECESSARY)
- fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
- else
- fr_flags(fp) |= FCPHF_CRC_UNCHECKED;
-
- fh = fc_frame_header_get(fp);
- if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
- fh->fh_type == FC_TYPE_FCP) {
- fc_exch_recv(lp, fp);
- continue;
- }
- if (fr_flags(fp) & FCPHF_CRC_UNCHECKED) {
- if (le32_to_cpu(fr_crc(fp)) !=
- ~crc32(~0, skb->data, fr_len)) {
- if (stats->InvalidCRCCount < 5)
- printk(KERN_WARNING "fcoe: dropping "
- "frame with CRC error\n");
- stats->InvalidCRCCount++;
- stats->ErrorFrames++;
- fc_frame_free(fp);
- continue;
- }
- fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
- }
- if (unlikely(port->fcoe->ctlr.flogi_oxid != FC_XID_UNKNOWN) &&
- fcoe_ctlr_recv_flogi(&port->fcoe->ctlr, fp, mac)) {
- fc_frame_free(fp);
- continue;
- }
- fc_exch_recv(lp, fp);
+ fcoe_recv_frame(skb);
}
return 0;
}
/**
- * fcoe_check_wait_queue() - attempt to clear the transmit backlog
- * @lp: the fc_lport
+ * fcoe_check_wait_queue() - Attempt to clear the transmit backlog
+ * @lport: The local port whose backlog is to be cleared
*
- * This empties the wait_queue, dequeue the head of the wait_queue queue
- * and calls fcoe_start_io() for each packet, if all skb have been
- * transmitted, return qlen or -1 if a error occurs, then restore
- * wait_queue and try again later.
+ * This empties the wait_queue, dequeues the head of the wait_queue queue
+ * and calls fcoe_start_io() for each packet. If all skb have been
+ * transmitted it returns the qlen. If an error occurs it restores
+ * wait_queue (to try again later) and returns -1.
*
- * The wait_queue is used when the skb transmit fails. skb will go
- * in the wait_queue which will be emptied by the timer function or
+ * The wait_queue is used when the skb transmit fails. The failed skb
+ * will go in the wait_queue which will be emptied by the timer function or
* by the next skb transmit.
*/
-static void fcoe_check_wait_queue(struct fc_lport *lp, struct sk_buff *skb)
+static void fcoe_check_wait_queue(struct fc_lport *lport, struct sk_buff *skb)
{
- struct fcoe_port *port = lport_priv(lp);
+ struct fcoe_port *port = lport_priv(lport);
int rc;
spin_lock_bh(&port->fcoe_pending_queue.lock);
@@ -1501,19 +1716,19 @@ static void fcoe_check_wait_queue(struct fc_lport *lp, struct sk_buff *skb)
}
if (port->fcoe_pending_queue.qlen < FCOE_LOW_QUEUE_DEPTH)
- lp->qfull = 0;
+ lport->qfull = 0;
if (port->fcoe_pending_queue.qlen && !timer_pending(&port->timer))
mod_timer(&port->timer, jiffies + 2);
port->fcoe_pending_queue_active = 0;
out:
if (port->fcoe_pending_queue.qlen > FCOE_MAX_QUEUE_DEPTH)
- lp->qfull = 1;
+ lport->qfull = 1;
spin_unlock_bh(&port->fcoe_pending_queue.lock);
return;
}
/**
- * fcoe_dev_setup() - setup link change notification interface
+ * fcoe_dev_setup() - Setup the link change notification interface
*/
static void fcoe_dev_setup(void)
{
@@ -1521,7 +1736,7 @@ static void fcoe_dev_setup(void)
}
/**
- * fcoe_dev_cleanup() - cleanup link change notification interface
+ * fcoe_dev_cleanup() - Cleanup the link change notification interface
*/
static void fcoe_dev_cleanup(void)
{
@@ -1529,19 +1744,19 @@ static void fcoe_dev_cleanup(void)
}
/**
- * fcoe_device_notification() - netdev event notification callback
- * @notifier: context of the notification
- * @event: type of event
- * @ptr: fixed array for output parsed ifname
+ * fcoe_device_notification() - Handler for net device events
+ * @notifier: The context of the notification
+ * @event: The type of event
+ * @ptr: The net device that the event was on
*
- * This function is called by the ethernet driver in case of link change event
+ * This function is called by the Ethernet driver in case of link change event.
*
* Returns: 0 for success
*/
static int fcoe_device_notification(struct notifier_block *notifier,
ulong event, void *ptr)
{
- struct fc_lport *lp = NULL;
+ struct fc_lport *lport = NULL;
struct net_device *netdev = ptr;
struct fcoe_interface *fcoe;
struct fcoe_port *port;
@@ -1552,11 +1767,11 @@ static int fcoe_device_notification(struct notifier_block *notifier,
list_for_each_entry(fcoe, &fcoe_hostlist, list) {
if (fcoe->netdev == netdev) {
- lp = fcoe->ctlr.lp;
+ lport = fcoe->ctlr.lp;
break;
}
}
- if (lp == NULL) {
+ if (!lport) {
rc = NOTIFY_DONE;
goto out;
}
@@ -1570,10 +1785,12 @@ static int fcoe_device_notification(struct notifier_block *notifier,
case NETDEV_CHANGE:
break;
case NETDEV_CHANGEMTU:
+ if (netdev->features & NETIF_F_FCOE_MTU)
+ break;
mfs = netdev->mtu - (sizeof(struct fcoe_hdr) +
sizeof(struct fcoe_crc_eof));
if (mfs >= FC_MIN_MAX_FRAME)
- fc_set_mfs(lp, mfs);
+ fc_set_mfs(lport, mfs);
break;
case NETDEV_REGISTER:
break;
@@ -1588,22 +1805,22 @@ static int fcoe_device_notification(struct notifier_block *notifier,
FCOE_NETDEV_DBG(netdev, "Unknown event %ld "
"from netdev netlink\n", event);
}
- if (link_possible && !fcoe_link_ok(lp))
+ if (link_possible && !fcoe_link_ok(lport))
fcoe_ctlr_link_up(&fcoe->ctlr);
else if (fcoe_ctlr_link_down(&fcoe->ctlr)) {
- stats = fc_lport_get_stats(lp);
+ stats = fc_lport_get_stats(lport);
stats->LinkFailureCount++;
- fcoe_clean_pending_queue(lp);
+ fcoe_clean_pending_queue(lport);
}
out:
return rc;
}
/**
- * fcoe_if_to_netdev() - parse a name buffer to get netdev
- * @buffer: incoming buffer to be copied
+ * fcoe_if_to_netdev() - Parse a name buffer to get a net device
+ * @buffer: The name of the net device
*
- * Returns: NULL or ptr to net_device
+ * Returns: NULL or a ptr to net_device
*/
static struct net_device *fcoe_if_to_netdev(const char *buffer)
{
@@ -1621,9 +1838,11 @@ static struct net_device *fcoe_if_to_netdev(const char *buffer)
}
/**
- * fcoe_destroy() - handles the destroy from sysfs
- * @buffer: expected to be an eth if name
- * @kp: associated kernel param
+ * fcoe_destroy() - Destroy a FCoE interface
+ * @buffer: The name of the Ethernet interface to be destroyed
+ * @kp: The associated kernel parameter
+ *
+ * Called from sysfs.
*
* Returns: 0 for success
*/
@@ -1631,7 +1850,7 @@ static int fcoe_destroy(const char *buffer, struct kernel_param *kp)
{
struct fcoe_interface *fcoe;
struct net_device *netdev;
- int rc;
+ int rc = 0;
mutex_lock(&fcoe_config_mutex);
#ifdef CONFIG_FCOE_MODULE
@@ -1670,6 +1889,10 @@ out_nodev:
return rc;
}
+/**
+ * fcoe_destroy_work() - Destroy a FCoE port in a deferred work context
+ * @work: Handle to the FCoE port to be destroyed
+ */
static void fcoe_destroy_work(struct work_struct *work)
{
struct fcoe_port *port;
@@ -1681,9 +1904,11 @@ static void fcoe_destroy_work(struct work_struct *work)
}
/**
- * fcoe_create() - Handles the create call from sysfs
- * @buffer: expected to be an eth if name
- * @kp: associated kernel param
+ * fcoe_create() - Create a fcoe interface
+ * @buffer: The name of the Ethernet interface to create on
+ * @kp: The associated kernel param
+ *
+ * Called from sysfs.
*
* Returns: 0 for success
*/
@@ -1726,7 +1951,7 @@ static int fcoe_create(const char *buffer, struct kernel_param *kp)
goto out_putdev;
}
- lport = fcoe_if_create(fcoe, &netdev->dev);
+ lport = fcoe_if_create(fcoe, &netdev->dev, 0);
if (IS_ERR(lport)) {
printk(KERN_ERR "fcoe: Failed to create interface (%s)\n",
netdev->name);
@@ -1762,16 +1987,9 @@ out_nodev:
return rc;
}
-module_param_call(create, fcoe_create, NULL, NULL, S_IWUSR);
-__MODULE_PARM_TYPE(create, "string");
-MODULE_PARM_DESC(create, "Create fcoe fcoe using net device passed in.");
-module_param_call(destroy, fcoe_destroy, NULL, NULL, S_IWUSR);
-__MODULE_PARM_TYPE(destroy, "string");
-MODULE_PARM_DESC(destroy, "Destroy fcoe fcoe");
-
/**
- * fcoe_link_ok() - Check if link is ok for the fc_lport
- * @lp: ptr to the fc_lport
+ * fcoe_link_ok() - Check if the link is OK for a local port
+ * @lport: The local port to check link on
*
* Any permanently-disqualifying conditions have been previously checked.
* This also updates the speed setting, which may change with link for 100/1000.
@@ -1783,26 +2001,26 @@ MODULE_PARM_DESC(destroy, "Destroy fcoe fcoe");
* Returns: 0 if link is OK for use by FCoE.
*
*/
-int fcoe_link_ok(struct fc_lport *lp)
+int fcoe_link_ok(struct fc_lport *lport)
{
- struct fcoe_port *port = lport_priv(lp);
- struct net_device *dev = port->fcoe->netdev;
+ struct fcoe_port *port = lport_priv(lport);
+ struct net_device *netdev = port->fcoe->netdev;
struct ethtool_cmd ecmd = { ETHTOOL_GSET };
- if ((dev->flags & IFF_UP) && netif_carrier_ok(dev) &&
- (!dev_ethtool_get_settings(dev, &ecmd))) {
- lp->link_supported_speeds &=
+ if ((netdev->flags & IFF_UP) && netif_carrier_ok(netdev) &&
+ (!dev_ethtool_get_settings(netdev, &ecmd))) {
+ lport->link_supported_speeds &=
~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
if (ecmd.supported & (SUPPORTED_1000baseT_Half |
SUPPORTED_1000baseT_Full))
- lp->link_supported_speeds |= FC_PORTSPEED_1GBIT;
+ lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
if (ecmd.supported & SUPPORTED_10000baseT_Full)
- lp->link_supported_speeds |=
+ lport->link_supported_speeds |=
FC_PORTSPEED_10GBIT;
if (ecmd.speed == SPEED_1000)
- lp->link_speed = FC_PORTSPEED_1GBIT;
+ lport->link_speed = FC_PORTSPEED_1GBIT;
if (ecmd.speed == SPEED_10000)
- lp->link_speed = FC_PORTSPEED_10GBIT;
+ lport->link_speed = FC_PORTSPEED_10GBIT;
return 0;
}
@@ -1810,8 +2028,8 @@ int fcoe_link_ok(struct fc_lport *lp)
}
/**
- * fcoe_percpu_clean() - Clear the pending skbs for an lport
- * @lp: the fc_lport
+ * fcoe_percpu_clean() - Clear all pending skbs for an local port
+ * @lport: The local port whose skbs are to be cleared
*
* Must be called with fcoe_create_mutex held to single-thread completion.
*
@@ -1820,7 +2038,7 @@ int fcoe_link_ok(struct fc_lport *lp)
* there no packets that will be handled by the lport, but also that any
* threads already handling packet have returned.
*/
-void fcoe_percpu_clean(struct fc_lport *lp)
+void fcoe_percpu_clean(struct fc_lport *lport)
{
struct fcoe_percpu_s *pp;
struct fcoe_rcv_info *fr;
@@ -1838,7 +2056,7 @@ void fcoe_percpu_clean(struct fc_lport *lp)
skb = next) {
next = skb->next;
fr = fcoe_dev_from_skb(skb);
- if (fr->fr_dev == lp) {
+ if (fr->fr_dev == lport) {
__skb_unlink(skb, list);
kfree_skb(skb);
}
@@ -1867,13 +2085,11 @@ void fcoe_percpu_clean(struct fc_lport *lp)
/**
* fcoe_clean_pending_queue() - Dequeue a skb and free it
- * @lp: the corresponding fc_lport
- *
- * Returns: none
+ * @lport: The local port to dequeue a skb on
*/
-void fcoe_clean_pending_queue(struct fc_lport *lp)
+void fcoe_clean_pending_queue(struct fc_lport *lport)
{
- struct fcoe_port *port = lport_priv(lp);
+ struct fcoe_port *port = lport_priv(lport);
struct sk_buff *skb;
spin_lock_bh(&port->fcoe_pending_queue.lock);
@@ -1886,10 +2102,10 @@ void fcoe_clean_pending_queue(struct fc_lport *lp)
}
/**
- * fcoe_reset() - Resets the fcoe
- * @shost: shost the reset is from
+ * fcoe_reset() - Reset a local port
+ * @shost: The SCSI host associated with the local port to be reset
*
- * Returns: always 0
+ * Returns: Always 0 (return value required by FC transport template)
*/
int fcoe_reset(struct Scsi_Host *shost)
{
@@ -1899,30 +2115,33 @@ int fcoe_reset(struct Scsi_Host *shost)
}
/**
- * fcoe_hostlist_lookup_port() - find the corresponding lport by a given device
- * @dev: this is currently ptr to net_device
+ * fcoe_hostlist_lookup_port() - Find the FCoE interface associated with a net device
+ * @netdev: The net device used as a key
+ *
+ * Locking: Must be called with the RNL mutex held.
*
- * Returns: NULL or the located fcoe_port
- * Locking: must be called with the RNL mutex held
+ * Returns: NULL or the FCoE interface
*/
static struct fcoe_interface *
-fcoe_hostlist_lookup_port(const struct net_device *dev)
+fcoe_hostlist_lookup_port(const struct net_device *netdev)
{
struct fcoe_interface *fcoe;
list_for_each_entry(fcoe, &fcoe_hostlist, list) {
- if (fcoe->netdev == dev)
+ if (fcoe->netdev == netdev)
return fcoe;
}
return NULL;
}
/**
- * fcoe_hostlist_lookup() - Find the corresponding lport by netdev
- * @netdev: ptr to net_device
+ * fcoe_hostlist_lookup() - Find the local port associated with a
+ * given net device
+ * @netdev: The netdevice used as a key
*
- * Returns: 0 for success
- * Locking: must be called with the RTNL mutex held
+ * Locking: Must be called with the RTNL mutex held
+ *
+ * Returns: NULL or the local port
*/
static struct fc_lport *fcoe_hostlist_lookup(const struct net_device *netdev)
{
@@ -1933,11 +2152,13 @@ static struct fc_lport *fcoe_hostlist_lookup(const struct net_device *netdev)
}
/**
- * fcoe_hostlist_add() - Add a lport to lports list
- * @lp: ptr to the fc_lport to be added
+ * fcoe_hostlist_add() - Add the FCoE interface identified by a local
+ * port to the hostlist
+ * @lport: The local port that identifies the FCoE interface to be added
*
- * Returns: 0 for success
* Locking: must be called with the RTNL mutex held
+ *
+ * Returns: 0 for success
*/
static int fcoe_hostlist_add(const struct fc_lport *lport)
{
@@ -1954,15 +2175,15 @@ static int fcoe_hostlist_add(const struct fc_lport *lport)
}
/**
- * fcoe_init() - fcoe module loading initialization
+ * fcoe_init() - Initialize fcoe.ko
*
- * Returns 0 on success, negative on failure
+ * Returns: 0 on success, or a negative value on failure
*/
static int __init fcoe_init(void)
{
+ struct fcoe_percpu_s *p;
unsigned int cpu;
int rc = 0;
- struct fcoe_percpu_s *p;
mutex_lock(&fcoe_config_mutex);
@@ -1999,15 +2220,15 @@ out_free:
module_init(fcoe_init);
/**
- * fcoe_exit() - fcoe module unloading cleanup
+ * fcoe_exit() - Clean up fcoe.ko
*
- * Returns 0 on success, negative on failure
+ * Returns: 0 on success or a negative value on failure
*/
static void __exit fcoe_exit(void)
{
- unsigned int cpu;
struct fcoe_interface *fcoe, *tmp;
struct fcoe_port *port;
+ unsigned int cpu;
mutex_lock(&fcoe_config_mutex);
@@ -2033,9 +2254,238 @@ static void __exit fcoe_exit(void)
/* flush any asyncronous interface destroys,
* this should happen after the netdev notifier is unregistered */
flush_scheduled_work();
+ /* That will flush out all the N_Ports on the hostlist, but now we
+ * may have NPIV VN_Ports scheduled for destruction */
+ flush_scheduled_work();
/* detach from scsi transport
* must happen after all destroys are done, therefor after the flush */
fcoe_if_exit();
}
module_exit(fcoe_exit);
+
+/**
+ * fcoe_flogi_resp() - FCoE specific FLOGI and FDISC response handler
+ * @seq: active sequence in the FLOGI or FDISC exchange
+ * @fp: response frame, or error encoded in a pointer (timeout)
+ * @arg: pointer the the fcoe_ctlr structure
+ *
+ * This handles MAC address managment for FCoE, then passes control on to
+ * the libfc FLOGI response handler.
+ */
+static void fcoe_flogi_resp(struct fc_seq *seq, struct fc_frame *fp, void *arg)
+{
+ struct fcoe_ctlr *fip = arg;
+ struct fc_exch *exch = fc_seq_exch(seq);
+ struct fc_lport *lport = exch->lp;
+ u8 *mac;
+
+ if (IS_ERR(fp))
+ goto done;
+
+ mac = fr_cb(fp)->granted_mac;
+ if (is_zero_ether_addr(mac)) {
+ /* pre-FIP */
+ if (fcoe_ctlr_recv_flogi(fip, lport, fp)) {
+ fc_frame_free(fp);
+ return;
+ }
+ }
+ fcoe_update_src_mac(lport, mac);
+done:
+ fc_lport_flogi_resp(seq, fp, lport);
+}
+
+/**
+ * fcoe_logo_resp() - FCoE specific LOGO response handler
+ * @seq: active sequence in the LOGO exchange
+ * @fp: response frame, or error encoded in a pointer (timeout)
+ * @arg: pointer the the fcoe_ctlr structure
+ *
+ * This handles MAC address managment for FCoE, then passes control on to
+ * the libfc LOGO response handler.
+ */
+static void fcoe_logo_resp(struct fc_seq *seq, struct fc_frame *fp, void *arg)
+{
+ struct fc_lport *lport = arg;
+ static u8 zero_mac[ETH_ALEN] = { 0 };
+
+ if (!IS_ERR(fp))
+ fcoe_update_src_mac(lport, zero_mac);
+ fc_lport_logo_resp(seq, fp, lport);
+}
+
+/**
+ * fcoe_elsct_send - FCoE specific ELS handler
+ *
+ * This does special case handling of FIP encapsualted ELS exchanges for FCoE,
+ * using FCoE specific response handlers and passing the FIP controller as
+ * the argument (the lport is still available from the exchange).
+ *
+ * Most of the work here is just handed off to the libfc routine.
+ */
+static struct fc_seq *fcoe_elsct_send(struct fc_lport *lport, u32 did,
+ struct fc_frame *fp, unsigned int op,
+ void (*resp)(struct fc_seq *,
+ struct fc_frame *,
+ void *),
+ void *arg, u32 timeout)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct fcoe_interface *fcoe = port->fcoe;
+ struct fcoe_ctlr *fip = &fcoe->ctlr;
+ struct fc_frame_header *fh = fc_frame_header_get(fp);
+
+ switch (op) {
+ case ELS_FLOGI:
+ case ELS_FDISC:
+ return fc_elsct_send(lport, did, fp, op, fcoe_flogi_resp,
+ fip, timeout);
+ case ELS_LOGO:
+ /* only hook onto fabric logouts, not port logouts */
+ if (ntoh24(fh->fh_d_id) != FC_FID_FLOGI)
+ break;
+ return fc_elsct_send(lport, did, fp, op, fcoe_logo_resp,
+ lport, timeout);
+ }
+ return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
+}
+
+/**
+ * fcoe_vport_create() - create an fc_host/scsi_host for a vport
+ * @vport: fc_vport object to create a new fc_host for
+ * @disabled: start the new fc_host in a disabled state by default?
+ *
+ * Returns: 0 for success
+ */
+static int fcoe_vport_create(struct fc_vport *vport, bool disabled)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(n_port);
+ struct fcoe_interface *fcoe = port->fcoe;
+ struct net_device *netdev = fcoe->netdev;
+ struct fc_lport *vn_port;
+
+ mutex_lock(&fcoe_config_mutex);
+ vn_port = fcoe_if_create(fcoe, &vport->dev, 1);
+ mutex_unlock(&fcoe_config_mutex);
+
+ if (IS_ERR(vn_port)) {
+ printk(KERN_ERR "fcoe: fcoe_vport_create(%s) failed\n",
+ netdev->name);
+ return -EIO;
+ }
+
+ if (disabled) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ } else {
+ vn_port->boot_time = jiffies;
+ fc_fabric_login(vn_port);
+ fc_vport_setlink(vn_port);
+ }
+ return 0;
+}
+
+/**
+ * fcoe_vport_destroy() - destroy the fc_host/scsi_host for a vport
+ * @vport: fc_vport object that is being destroyed
+ *
+ * Returns: 0 for success
+ */
+static int fcoe_vport_destroy(struct fc_vport *vport)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fc_lport *vn_port = vport->dd_data;
+ struct fcoe_port *port = lport_priv(vn_port);
+
+ mutex_lock(&n_port->lp_mutex);
+ list_del(&vn_port->list);
+ mutex_unlock(&n_port->lp_mutex);
+ schedule_work(&port->destroy_work);
+ return 0;
+}
+
+/**
+ * fcoe_vport_disable() - change vport state
+ * @vport: vport to bring online/offline
+ * @disable: should the vport be disabled?
+ */
+static int fcoe_vport_disable(struct fc_vport *vport, bool disable)
+{
+ struct fc_lport *lport = vport->dd_data;
+
+ if (disable) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ fc_fabric_logoff(lport);
+ } else {
+ lport->boot_time = jiffies;
+ fc_fabric_login(lport);
+ fc_vport_setlink(lport);
+ }
+
+ return 0;
+}
+
+/**
+ * fcoe_vport_set_symbolic_name() - append vport string to symbolic name
+ * @vport: fc_vport with a new symbolic name string
+ *
+ * After generating a new symbolic name string, a new RSPN_ID request is
+ * sent to the name server. There is no response handler, so if it fails
+ * for some reason it will not be retried.
+ */
+static void fcoe_set_vport_symbolic_name(struct fc_vport *vport)
+{
+ struct fc_lport *lport = vport->dd_data;
+ struct fc_frame *fp;
+ size_t len;
+
+ snprintf(fc_host_symbolic_name(lport->host), FC_SYMBOLIC_NAME_SIZE,
+ "%s v%s over %s : %s", FCOE_NAME, FCOE_VERSION,
+ fcoe_netdev(lport)->name, vport->symbolic_name);
+
+ if (lport->state != LPORT_ST_READY)
+ return;
+
+ len = strnlen(fc_host_symbolic_name(lport->host), 255);
+ fp = fc_frame_alloc(lport,
+ sizeof(struct fc_ct_hdr) +
+ sizeof(struct fc_ns_rspn) + len);
+ if (!fp)
+ return;
+ lport->tt.elsct_send(lport, FC_FID_DIR_SERV, fp, FC_NS_RSPN_ID,
+ NULL, NULL, 3 * lport->r_a_tov);
+}
+
+/**
+ * fcoe_get_lesb() - Fill the FCoE Link Error Status Block
+ * @lport: the local port
+ * @fc_lesb: the link error status block
+ */
+static void fcoe_get_lesb(struct fc_lport *lport,
+ struct fc_els_lesb *fc_lesb)
+{
+ unsigned int cpu;
+ u32 lfc, vlfc, mdac;
+ struct fcoe_dev_stats *devst;
+ struct fcoe_fc_els_lesb *lesb;
+ struct net_device *netdev = fcoe_netdev(lport);
+
+ lfc = 0;
+ vlfc = 0;
+ mdac = 0;
+ lesb = (struct fcoe_fc_els_lesb *)fc_lesb;
+ memset(lesb, 0, sizeof(*lesb));
+ for_each_possible_cpu(cpu) {
+ devst = per_cpu_ptr(lport->dev_stats, cpu);
+ lfc += devst->LinkFailureCount;
+ vlfc += devst->VLinkFailureCount;
+ mdac += devst->MissDiscAdvCount;
+ }
+ lesb->lesb_link_fail = htonl(lfc);
+ lesb->lesb_vlink_fail = htonl(vlfc);
+ lesb->lesb_miss_fka = htonl(mdac);
+ lesb->lesb_fcs_error = htonl(dev_get_stats(netdev)->rx_crc_errors);
+}
diff --git a/drivers/scsi/fcoe/fcoe.h b/drivers/scsi/fcoe/fcoe.h
index ce7f60fb1bc0..c69b2c56c2d1 100644
--- a/drivers/scsi/fcoe/fcoe.h
+++ b/drivers/scsi/fcoe/fcoe.h
@@ -32,7 +32,7 @@
#define FCOE_NAME "fcoe"
#define FCOE_VENDOR "Open-FCoE.org"
-#define FCOE_MAX_LUN 255
+#define FCOE_MAX_LUN 0xFFFF
#define FCOE_MAX_FCP_TARGET 256
#define FCOE_MAX_OUTSTANDING_COMMANDS 1024
@@ -40,11 +40,17 @@
#define FCOE_MIN_XID 0x0000 /* the min xid supported by fcoe_sw */
#define FCOE_MAX_XID 0x0FFF /* the max xid supported by fcoe_sw */
+/*
+ * Max MTU for FCoE: 14 (FCoE header) + 24 (FC header) + 2112 (max FC payload)
+ * + 4 (FC CRC) + 4 (FCoE trailer) = 2158 bytes
+ */
+#define FCOE_MTU 2158
+
unsigned int fcoe_debug_logging;
module_param_named(debug_logging, fcoe_debug_logging, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
-#define FCOE_LOGGING 0x01 /* General logging, not categorized */
+#define FCOE_LOGGING 0x01 /* General logging, not categorized */
#define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */
#define FCOE_CHECK_LOGGING(LEVEL, CMD) \
@@ -64,8 +70,13 @@ do { \
printk(KERN_INFO "fcoe: %s: " fmt, \
netdev->name, ##args);)
-/*
- * this percpu struct for fcoe
+/**
+ * struct fcoe_percpu_s - The per-CPU context for FCoE receive threads
+ * @thread: The thread context
+ * @fcoe_rx_list: The queue of pending packets to process
+ * @page: The memory page for calculating frame trailer CRCs
+ * @crc_eof_offset: The offset into the CRC page pointing to available
+ * memory for a new trailer
*/
struct fcoe_percpu_s {
struct task_struct *thread;
@@ -74,37 +85,62 @@ struct fcoe_percpu_s {
int crc_eof_offset;
};
-/*
- * an FCoE interface, 1:1 with netdev
+/**
+ * struct fcoe_interface - A FCoE interface
+ * @list: Handle for a list of FCoE interfaces
+ * @netdev: The associated net device
+ * @fcoe_packet_type: FCoE packet type
+ * @fip_packet_type: FIP packet type
+ * @ctlr: The FCoE controller (for FIP)
+ * @oem: The offload exchange manager for all local port
+ * instances associated with this port
+ * @kref: The kernel reference
+ *
+ * This structure is 1:1 with a net devive.
*/
struct fcoe_interface {
- struct list_head list;
- struct net_device *netdev;
- struct packet_type fcoe_packet_type;
- struct packet_type fip_packet_type;
- struct fcoe_ctlr ctlr;
- struct fc_exch_mgr *oem; /* offload exchange manager */
- struct kref kref;
+ struct list_head list;
+ struct net_device *netdev;
+ struct packet_type fcoe_packet_type;
+ struct packet_type fip_packet_type;
+ struct fcoe_ctlr ctlr;
+ struct fc_exch_mgr *oem;
+ struct kref kref;
};
-/*
- * the FCoE private structure that's allocated along with the
- * Scsi_Host and libfc fc_lport structures
+/**
+ * struct fcoe_port - The FCoE private structure
+ * @fcoe: The associated fcoe interface
+ * @lport: The associated local port
+ * @fcoe_pending_queue: The pending Rx queue of skbs
+ * @fcoe_pending_queue_active: Indicates if the pending queue is active
+ * @timer: The queue timer
+ * @destroy_work: Handle for work context
+ * (to prevent RTNL deadlocks)
+ * @data_srt_addr: Source address for data
+ *
+ * An instance of this structure is to be allocated along with the
+ * Scsi_Host and libfc fc_lport structures.
*/
struct fcoe_port {
struct fcoe_interface *fcoe;
- struct fc_lport *lport;
- struct sk_buff_head fcoe_pending_queue;
- u8 fcoe_pending_queue_active;
- struct timer_list timer; /* queue timer */
- struct work_struct destroy_work; /* to prevent rtnl deadlocks */
+ struct fc_lport *lport;
+ struct sk_buff_head fcoe_pending_queue;
+ u8 fcoe_pending_queue_active;
+ struct timer_list timer;
+ struct work_struct destroy_work;
+ u8 data_src_addr[ETH_ALEN];
};
#define fcoe_from_ctlr(fip) container_of(fip, struct fcoe_interface, ctlr)
-static inline struct net_device *fcoe_netdev(const struct fc_lport *lp)
+/**
+ * fcoe_netdev() - Return the net device associated with a local port
+ * @lport: The local port to get the net device from
+ */
+static inline struct net_device *fcoe_netdev(const struct fc_lport *lport)
{
- return ((struct fcoe_port *)lport_priv(lp))->fcoe->netdev;
+ return ((struct fcoe_port *)lport_priv(lport))->fcoe->netdev;
}
#endif /* _FCOE_H_ */
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 11ae5c94608b..9823291395ad 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -59,26 +59,30 @@ unsigned int libfcoe_debug_logging;
module_param_named(debug_logging, libfcoe_debug_logging,