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2016-03-18lpfc: fix misleading indentationArnd Bergmann1-2/+3
gcc-6 complains about the indentation of the lpfc_destroy_vport_work_array() call in lpfc_online(), which clearly doesn't look right: drivers/scsi/lpfc/lpfc_init.c: In function 'lpfc_online': drivers/scsi/lpfc/lpfc_init.c:2880:3: warning: statement is indented as if it were guarded by... [-Wmisleading-indentation] lpfc_destroy_vport_work_array(phba, vports); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/scsi/lpfc/lpfc_init.c:2863:2: note: ...this 'if' clause, but it is not if (vports != NULL) ^~ Looking at the patch that introduced this code, it's clear that the behavior is correct and the indentation is wrong. This fixes the indentation and adds curly braces around the previous if() block for clarity, as that is most likely what caused the code to be misindented in the first place. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 549e55cd2a1b ("[SCSI] lpfc 8.2.2 : Fix locking around HBA's port_list") Reviewed-by: Sebastian Herbszt <herbszt@gmx.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23lpfc: fix missing zero termination in debugfsAlan1-2/+2
If you feed 32 bytes in then the kstrtoull() doesn't receive a terminated string so will run off the end. Signed-off-by: Alan Cox <alan@linux.intel.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23lpfc: Add lockdep assertionsJohannes Thumshirn2-0/+48
Several functions in lpfc have comments stating that the function must be called with the hbalock (or hostlock, or ringlock) held. Add lockdep_assert_held() annotations to these functions, so one can actually verify the locks are held. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23lpfc: Remove redundant code block in lpfc_scsi_cmd_iocb_cmplJohannes Thumshirn1-17/+0
This removes a redundant code block that will either be executed if the ENABLE_FCP_RING_POLLING flag is set in phba->cfg_poll or not. The code is just duplicated in both cases, hence we unify it again. This probably is a left over from some sort of refactoring. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Sebastian Herbszt <herbszt@gmx.de> Acked-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Update version to 11.0.0.10 for upstream patch setJames Smart1-1/+1
Update version to 11.0.0.10 for upstream patch set Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Use kzalloc instead of kmallocPunit Vara1-2/+1
This patch is to the lpfc_els.c which resolves following warning reported by coccicheck: WARNING: kzalloc should be used for rdp_context, instead of kmalloc/memset Signed-off-by: Punit Vara <punitvara@gmail.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Reviewed-by: Sebastian Herbszt <herbszt@gmx.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Delete unnecessary checks before the function call "mempool_destroy"Markus Elfring1-4/+2
The mempool_destroy() function tests whether its argument is NULL and then returns immediately. Thus the test around the calls is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Reviewed-by: Sebastian Herbszt <herbszt@gmx.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Add logging for misconfigured optics.James Smart3-32/+87
Add logging for misconfigured optics acqe reported by fw. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix external loopback failure.James Smart1-2/+13
Fix external loopback failure. Rx sequence reassembly was incorrect. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix mbox reuse in PLOGI completionJames Smart1-10/+21
Fix mbox reuse in PLOGI completion. Moved allocations so that buffer properly init'd. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Use new FDMI speed definitions for 10G, 25G and 40G FCoE.James Smart7-136/+150
Use new FDMI speed definitions for 10G, 25G and 40G FCoE. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Make write check error processing more resilientJames Smart1-6/+21
Make write check error processing more resilient. Checks to catch writes that fw reports weren't fully complete yet SCSI status indicated fine needed correction. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix RDP ACC being too long.James Smart1-0/+10
Fix RDP ACC being too long. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix RDP Speed reporting.James Smart1-10/+7
Fix RDP Speed reporting. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Modularize and cleanup FDMI code in driverJames Smart9-745/+1450
Modularize, cleanup, add comments - for FDMI code in driver Note: I don't like the comments with leading # - but as we have a lot if present, I'm deferring to handle it in one big fix later. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix crash in fcp command completion path.James Smart1-2/+2
Fix crash in fcp command completion path. Missed null check. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix driver crash when module parameter lpfc_fcp_io_channel set to 16James Smart1-3/+6
Fix driver crash when module parameter lpfc_fcp_io_channel set to 16 Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix RegLogin failed error seen on Lancer FC during port bounceJames Smart3-9/+16
Fix RegLogin failed error seen on Lancer FC during port bounce Fix the statemachine and ref counting. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix the FLOGI discovery logic to comply with T11 standardsJames Smart4-239/+240
Fix the FLOGI discovery logic to comply with T11 standards We weren't properly setting fabric parameters, such as R_A_TOV and E_D_TOV, when we registered the vfi object in default configs and pt2pt configs. Revise to now pass service params with the values to the firmware and ensure they are reset on link bounce. Required reworking the call sequence in the discovery threads. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix FCF Infinite loop in lpfc_sli4_fcf_rr_next_index_get.James Smart1-2/+6
Fix FCF Infinite loop in lpfc_sli4_fcf_rr_next_index_get. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-11-09scsi: use host wide tags by defaultChristoph Hellwig1-3/+0
This patch changes the !blk-mq path to the same defaults as the blk-mq I/O path by always enabling block tagging, and always using host wide tags. We've had blk-mq available for a few releases so bugs with this mode should have been ironed out, and this ensures we get better coverage of over tagging setup over different configs. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-11-09lpfc: fix memory leak and NULL dereferenceSudip Mukherjee1-1/+7
kmalloc() can return NULL and without checking we were dereferencing it. Moreover if kmalloc succeeds but the function fails in other parts then we were returning the error code but we missed freeing lcb_context. While at it fixed one related checkpatch warning. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Reviewed-by: James Smart <james.smart@avagotech.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: Update version to 11.0.0.0 for upstream patch setJames Smart1-1/+1
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: Fix default RA_TOV and ED_TOV in the FC/FCoE driver for all topologiesJames Smart2-2/+15
Initial link up defaults were not properly being tracked relative to initial FLOGI or pt2pt PLOGI. Add code to initialize them. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: The linux driver does not reinitiate discovery after a failed FLOGIJames Smart1-2/+7
Forgot to clear FCF Discovery in-progress flag upon FLOGI failures. Thus we didn't restart FLOGI. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: Fix for discovery failure in PT2PT when FLOGI's ELS ACC response gets abortedJames Smart1-14/+17
Fix for discovery failure in PT2PT when FLOGI's ELS ACC response gets aborted Change login state machine to: - Restart FLOGI if prior is ABTS'd - Reject incoming FLOGIs if we have one pending The above ensures that we always finish FLOGI processing, regardless of who initated FLOGI, before processing PLOGI's. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: Add support for Lancer G6 and 32G FC linksJames Smart8-9/+58
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27fix: lpfc_send_rscn_event sends bigger buffer sizeAles Novak1-1/+1
lpfc_send_rscn_event() allocates data for sizeof(struct lpfc_rscn_event_header) + payload_len, but claims that the data has size of sizeof(struct lpfc_els_event_header) + payload_len. That leads to buffer overruns. Signed-off-by: Ales Novak <alnovak@suse.cz> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Sebastian Herbszt <herbszt@gmx.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: remove set but not used variablesSebastian Herbszt10-126/+8
Remove set but not used variables. Signed-off-by: Sebastian Herbszt <herbszt@gmx.de> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc:Make the function lpfc_sli4_mbox_completions_pending static in order to comply with function prototypeNicholas Krause1-1/+1
This makes the function lpfc_sli4_mbox_completion's definition static now in order to comply with its prototype being also declared as static too. Signed-off-by: Nicholas Krause <xerofoify@gmail.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Sebastian Herbszt <herbszt@gmx.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27Fix kmalloc overflow in LPFC driver at large core countIan Mitchell2-6/+1
This patch allows the LPFC to start up without a fatal kernel bug based on an exceeded KMALLOC_MAX_SIZE and a too large NR_CPU-based maskbits field. The bug was based on the number of CPU cores in a system. Using the get_cpu_mask() function declared in kernel/cpu.c allows the driver to load on the community kernel 4.2 RC1. Below is the kernel bug reproduced: 8<-------------------------------------------------------------------- 2199382.828437 ( 0.005216)| lpfc 0003:02:00.0: enabling device (0140 -> 0142) 2199382.999272 ( 0.170835)| ------------[ cut here ]------------ 2199382.999337 ( 0.000065)| WARNING: CPU: 84 PID: 404 at mm/slab_common.c:653 kmalloc_slab+0x2f/0x89() 2199383.004534 ( 0.005197)| Modules linked in: lpfc(+) usbcore(+) mptctl scsi_transport_fc sg lpc_ich i2c_i801 usb_common tpm_tis mfd_core tpm acpi_cpufreq button scsi_dh_alua scsi_dh_rdacusbcore: registered new device driver usb 2199383.020568 ( 0.016034)| 2199383.020581 ( 0.000013)| scsi_dh_hp_sw scsi_dh_emc scsi_dh gru thermal sata_nv processor piix fan thermal_sysehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver 2199383.035288 ( 0.014707)| 2199383.035306 ( 0.000018)| hwmon ata_piix 2199383.035336 ( 0.000030)| CPU: 84 PID: 404 Comm: kworker/84:0 Not tainted 3.18.0-rc2-gat-00106-ga7ca10f-dirty #178 2199383.047077 ( 0.011741)| ehci-pci: EHCI PCI platform driver 2199383.047134 ( 0.000057)| Hardware name: SGI UV2000/ROMLEY, BIOS SGI UV 2000/3000 series BIOS 01/15/2013 2199383.056245 ( 0.009111)| Workqueue: events work_for_cpu_fn 2199383.066174 ( 0.009929)| 000000000000028d ffff88eef827bbe8 ffffffff815a542f 000000000000028d 2199383.069545 ( 0.003371)| ffffffff810ea142 ffff88eef827bc28 ffffffff8104365c ffff88eefe4006c8 2199383.076214 ( 0.006669)| 0000000000000000 00000000000080d0 0000000000000000 0000000000000004 2199383.079213 ( 0.002999)| Call Trace: 2199383.084084 ( 0.004871)| [<ffffffff815a542f>] dump_stack+0x49/0x62 2199383.087283 ( 0.003199)| [<ffffffff810ea142>] ? kmalloc_slab+0x2f/0x89 2199383.091415 ( 0.004132)| [<ffffffff8104365c>] warn_slowpath_common+0x77/0x92 2199383.095197 ( 0.003782)| [<ffffffff8104368c>] warn_slowpath_null+0x15/0x17 2199383.103336 ( 0.008139)| [<ffffffff810ea142>] kmalloc_slab+0x2f/0x89 2199383.107082 ( 0.003746)| [<ffffffff8110fd9e>] __kmalloc+0x13/0x16a 2199383.112531 ( 0.005449)| [<ffffffffa01a8ed9>] lpfc_pci_probe_one_s4+0x105b/0x1644 [lpfc] 2199383.115316 ( 0.002785)| [<ffffffff81302b92>] ? pci_bus_read_config_dword+0x75/0x87 2199383.123431 ( 0.008115)| [<ffffffffa01a951f>] lpfc_pci_probe_one+0x5d/0xcb5 [lpfc] 2199383.127364 ( 0.003933)| [<ffffffff81497119>] ? dbs_check_cpu+0x168/0x177 2199383.136438 ( 0.009074)| [<ffffffff81496fa5>] ? gov_queue_work+0xb4/0xc0 2199383.140407 ( 0.003969)| [<ffffffff8130b2a1>] local_pci_probe+0x1e/0x52 2199383.143105 ( 0.002698)| [<ffffffff81052c47>] work_for_cpu_fn+0x13/0x1b 2199383.147315 ( 0.004210)| [<ffffffff81054965>] process_one_work+0x222/0x35e 2199383.151379 ( 0.004064)| [<ffffffff81054e76>] worker_thread+0x3d5/0x46e 2199383.159402 ( 0.008023)| [<ffffffff81054aa1>] ? process_one_work+0x35e/0x35e 2199383.163097 ( 0.003695)| [<ffffffff810599c6>] kthread+0xc8/0xd2 2199383.167476 ( 0.004379)| [<ffffffff810598fe>] ? kthread_freezable_should_stop+0x5b/0x5b 2199383.176434 ( 0.008958)| [<ffffffff815a8cac>] ret_from_fork+0x7c/0xb0 2199383.180086 ( 0.003652)| [<ffffffff810598fe>] ? kthread_freezable_should_stop+0x5b/0x5b 2199383.192333 ( 0.012247)| ehci-pci 0000:00:1a.0: EHCI Host Controller -------------------------------------------------------------------->8 The proposed solution was approved by James Smart at Emulex and tested on a UV2 machine with 6144 cores. With the fix, the LPFC module loads with no unwanted effects on the system. Signed-off-by: Ian Mitchell <imitchell@sgi.com> Signed-off-by: Alex Thorlton <athorlton@sgi.com> Suggested-by: Robert Elliot <elliott@hp.com> [james.smart: resolve unused variable warning] Signed-off-by: James Smart <james.smart@avagotech.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: Destroy lpfc_hba_index IDR on module exitJohannes Thumshirn1-0/+1
Destroy lpfc_hba_index IDR on module exit, reclaiming the allocated memory. This was detected by the following semantic patch (written by Luis Rodriguez <mcgrof@suse.com>) <SmPL> @ defines_module_init @ declarer name module_init, module_exit; declarer name DEFINE_IDR; identifier init; @@ module_init(init); @ defines_module_exit @ identifier exit; @@ module_exit(exit); @ declares_idr depends on defines_module_init && defines_module_exit @ identifier idr; @@ DEFINE_IDR(idr); @ on_exit_calls_destroy depends on declares_idr && defines_module_exit @ identifier declares_idr.idr, defines_module_exit.exit; @@ exit(void) { ... idr_destroy(&idr); ... } @ missing_module_idr_destroy depends on declares_idr && defines_module_exit && !on_exit_calls_destroy @ identifier declares_idr.idr, defines_module_exit.exit; @@ exit(void) { ... +idr_destroy(&idr); } </SmPL> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: in sli3 use configured sg_seg_cnt for sg_tablesizeBodo Stroesser1-1/+1
Currently the module parameter lpfc_sg_seg_count does not have effect for sli3 devices. In lpfc_sli_driver_resource_setup(), which is used for sli3, the code writes the configured sg_seg_cnt into lpfc_template.sg_tablesize. But lpfc_template is the template used for sli4 only. Thus the value should correctly be written to lpfc_template_s3->sg_tablesize. This patch is for kernel 4.1-rc5, but is tested with lpfc 10.2.405.26 only. Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Sebastian Herbszt <herbszt@gmx.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: Remove unnessary castFiro Yang1-2/+1
kzalloc() returns a void pointer - no need to cast it in drivers/scsi/lpfc/lpfc_init.c::lpfc_sli_driver_resource_setup() Signed-off-by: Firo Yang <firogm@gmail.com> Signed-off-by: James Smart <james.smart@avagotech.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-10-27lpfc: fix model descriptionSebastian Herbszt1-1/+1
Remove trailing space from model description. Signed-off-by: Sebastian Herbszt <herbszt@gmx.de> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-09-06lpfc: Fix possible use-after-free and double free in lpfc_mbx_cmpl_rdp_page_a2()Johannes Thumshirn1-3/+4
If the bf_get() call in lpfc_mbx_cmpl_rdp_page_a2() does succeeds, execution continues normally and mp gets kfree()d. If the subsequent call to lpfc_sli_issue_mbox() fails execution jumps to the error label where lpfc_mbuf_free() is called with mp->virt and mp->phys as function arguments. This is the use after free. Following the use after free mp gets kfree()d again which is a double free. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: James Smart <james.smart@avagotech.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26lpfc: Use && instead of & for boolean expressionSebastian Herbszt1-1/+1
Use logical instead of bitwise AND. Signed-off-by: Sebastian Herbszt <herbszt@gmx.de> Reviewed-by: James Smart <james.smart@avagotech.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-23Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds16-199/+1530
Pull SCSI updates from James Bottomley: "This is the usual grab bag of driver updates (lpfc, hpsa, megaraid_sas, cxgbi, be2iscsi) plus an assortment of minor updates. There is also one new driver: the Cisco snic. The advansys driver has been rewritten to get rid of the warning about converting it to the DMA API, the tape statistics patch got in and finally, there's a resuffle of SCSI header files to separate more cleanly initiator from target mode (and better share the common definitions)" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (156 commits) snic: driver for Cisco SCSI HBA qla2xxx: Fix indentation qla2xxx: Comment out unreachable code fusion: remove dead MTRR code advansys: fix compilation errors and warnings when CONFIG_PCI is not set mptsas: fix depth param in scsi_track_queue_full megaraid: fix irq setup process regression lpfc: Update version to 10.7.0.0 for upstream patch set. lpfc: Fix to drop PLOGIs from fabric node till LOGO processing completes lpfc: Fix scsi task management error message. lpfc: Fix cq_id masking problem. lpfc: Fix scsi prep dma buf error. lpfc: Add support for using block multi-queue lpfc: Devices are not discovered during takeaway/giveback testing lpfc: Fix vport deletion failure. lpfc: Check for active portpeerbeacon. lpfc: Update driver version for upstream patch set 10.6.0.1. lpfc: Change buffer pool empty message to miscellaneous category lpfc: Fix incorrect log message reported for empty FCF record. lpfc: Fix rport leak. ...
2015-06-23Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivialLinus Torvalds1-6/+6
Pull trivial tree updates from Jiri Kosina: "As usual, mostly comment, kerneldoc and printk() fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: lpfc: Grammar s/an negative/a negative/ ARM: lib/lib1funcs.S: fix typo s/substractions/subtractions/ cx25821: cx25821-medusa-reg.h: fix 0x0x prefix lib: crc-itu-t.[ch] fix 0x0x prefix in integer constants rapidio: Fix kerneldoc and comment qla4xxx: Fix printk() in qla4_83xx_read_reset_template() and qla4_83xx_pre_loopback_config() treewide: Kconfig: fix wording / spelling usb/serial: fix grammar in Kconfig help text for FTDI_SIO megaraid_sas: fix kerneldoc netfilter: ebtables: fix comment grammar drm/radeon: fix comment isdn: fix grammar in comment ARM: KVM: fix comment
2015-06-13lpfc: Update version to 10.7.0.0 for upstream patch set.James Smart1-1/+1
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Fix to drop PLOGIs from fabric node till LOGO processing completesJames Smart4-15/+16
The domain controller PLOGI's concurrent with prior LOGO's/unreg_rpi's completing created a race condition where driver rpi ref count can inadvertantly hit 0 and the rpi attempted to be freed. This error sometimes resulted in Warning messages indicating kref.h via lfpc_nlp_get+0x128. Correct by dropping any new PLOGI until the prior nport state has settled. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Fix scsi task management error message.James Smart1-8/+10
TMF's were getting error messages on FCP_RSP errors (underrun). Underruns aren't meaningful in the scenario. Change the error message to filter out these response check errors, and don't unconditionally mark the cmd as in error. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Fix cq_id masking problem.James Smart1-1/+1
The driver inadvertainly constrained the id space to 8 bits, when its a full 16 bits from hw. This resulted in bad id's being written to the hardware. Resulted in symptoms such as incomplete initialization, no detection of link events, etc. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Fix scsi prep dma buf error.James Smart1-1/+1
Didn't check for less-than-or-equal zero. Means we may later call scsi_dma_unmap() even though we don't have valid mappings. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Add support for using block multi-queueJames Smart4-52/+72
With blk-mq support in the mid-layer, lpfc can do IO steering based on the information in the request tag. This patch allows lpfc to use blk-mq if enabled. If not enabled, we fall back into the emulex-internal affinity mappings. This feature can be turned on via CONFIG_SCSI_MQ_DEFAULT or passing scsi_mod.use_blk_mq=Y as a parameter to the kernel. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Devices are not discovered during takeaway/giveback testingJames Smart1-12/+10
When a remote nport changes it's DID, a new ndlp is used. However, we left the old ndlp state unchanged and still in a discovery state. The may stall discovery resulting in some devices not being discovered. Correct by swapping the state of the 2 ndlp's when a DID swap is detected. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Fix vport deletion failure.James Smart1-0/+2
If a vport was deleted while in the middle of discovery, we weren't clearing the nport discovery flag. Correct by clearing the flag and cancelling our discovery timeout timer. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13lpfc: Check for active portpeerbeacon.James Smart2-4/+21
LCB requests to set Beacon would fail if the beacon was already enabled internally as the mailbox command used to query the state failes with an already-set status. Correct by enhancing the check so we don't fail if if the already set status comes back. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-05lpfc: Update driver version for upstream patch set 10.6.0.1.James Smart1-1/+1
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-05lpfc: Change buffer pool empty message to miscellaneous categoryJames Smart1-1/+1
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>