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2015-05-31scsi: Do not set cmd_per_lun to 1 in the host templateHannes Reinecke1-1/+0
'0' is now used as the default cmd_per_lun value, so there's no need to explicitly set it to '1' in the host template. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-17mvsas: fix panic on expander attached SATA devicesJames Bottomley1-4/+1
mvsas is giving a General protection fault when it encounters an expander attached ATA device. Analysis of mvs_task_prep_ata() shows that the driver is assuming all ATA devices are locally attached and obtaining the phy mask by indexing the local phy table (in the HBA structure) with the phy id. Since expanders have many more phys than the HBA, this is causing the index into the HBA phy table to overflow and returning rubbish as the pointer. mvs_task_prep_ssp() instead does the phy mask using the port properties. Mirror this in mvs_task_prep_ata() to fix the panic. Reported-by: Adam Talbot <ajtalbot1@gmail.com> Tested-by: Adam Talbot <ajtalbot1@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2014-12-18Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linusJames Bottomley1-1/+0
2014-12-11Merge branch 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libataLinus Torvalds1-2/+2
Pull libata changes from Tejun Heo: "The only interesting piece is the support for shingled drives. The changes in libata layer are minimal. All it does is identifying the new class of device and report upwards accordingly" * 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: libata: Remove FIXME comment in atapi_request_sense() sata_rcar: Document deprecated "renesas,rcar-sata" sata_rcar: Add clocks to sata_rcar bindings ahci_sunxi: Make AHCI_HFLAG_NO_PMP flag configurable with a module option libata-scsi: Update SATL for ZAC drives libata: Implement ATA_DEV_ZAC libsas: use ata_dev_classify()
2014-12-04scsi: remove ->change_queue_type methodChristoph Hellwig1-1/+0
Since we got rid of ordered tag support in 2010 the prime use case of switching on and off ordered tags has been obsolete. The other function of enabling/disabling tagging entirely has only been correctly implemented by the 53c700 driver and isn't generally useful. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-27libsas: remove task_collector modeChristoph Hellwig3-136/+5
The task_collector mode (or "latency_injector", (C) Dan Willians) is an optional I/O path in libsas that queues up scsi commands instead of directly sending it to the hardware. It generall increases latencies to in the optiomal case slightly reduce mmio traffic to the hardware. Only the obsolete aic94xx driver and the mvsas driver allowed to use it without recompiling the kernel, and most drivers didn't support it at all. Remove the giant blob of code to allow better optimizations for scsi-mq in the future. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Acked-by: Dan Williams <dan.j.williams@intel.com>
2014-11-24scsi: avoid ->change_queue_depth indirection for queue full trackingChristoph Hellwig1-0/+1
All drivers use the implementation for ramping the queue up and down, so instead of overloading the change_queue_depth method call the implementation diretly if the driver opts into it by setting the track_queue_depth flag in the host template. Note that a few drivers validated the new queue depth in their change_queue_depth method, but as we never go over the queue depth set during slave_configure or the sysfs file this isn't nessecary and can safely be removed. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Venkatesh Srinivas <venkateshs@google.com>
2014-11-12scsi: always assign block layer tags if enabledChristoph Hellwig1-0/+1
Allow a driver to ask for block layer tags by setting .use_blk_tags in the host template, in which case it will always see a valid value in request->tag, similar to the behavior when using blk-mq. This means even SCSI "untagged" commands will now have a tag, which is especially useful when using a host-wide tag map. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de>
2014-11-05libsas: use ata_dev_classify()Hannes Reinecke1-2/+2
Use the ata device class from libata in libsas instead of checking the supported command set and switch to using ata_dev_classify() instead of our own method. Cc: Tejun Heo <tj@kernel.org> Cc: Dan Williams <dan.j.williams@intel.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2014-08-06Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivialLinus Torvalds1-10/+14
Pull trivial tree changes from Jiri Kosina: "Summer edition of trivial tree updates" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits) doc: fix two typos in watchdog-api.txt irq-gic: remove file name from heading comment MAINTAINERS: Add miscdevice.h to file list for char/misc drivers. scsi: mvsas: mv_sas.c: Fix for possible null pointer dereference doc: replace "practise" with "practice" in Documentation befs: remove check for CONFIG_BEFS_RW scsi: doc: fix 'SCSI_NCR_SETUP_MASTER_PARITY' drivers/usb/phy/phy.c: remove a leading space mfd: fix comment cpuidle: fix comment doc: hpfall.c: fix missing null-terminate after strncpy call usb: doc: hotplug.txt code typos kbuild: fix comment in Makefile.modinst SH: add proper prompt to SH_MAGIC_PANEL_R2_VERSION ARM: msm: Remove MSM_SCM crypto: Remove MPILIB_EXTRA doc: CN: remove dead link, kerneltrap.org no longer works media: update reference, kerneltrap.org no longer works hexagon: update reference, kerneltrap.org no longer works doc: LSM: update reference, kerneltrap.org no longer works ...
2014-06-20drivers: scsi: mvsas: fix compiling issue by adding 'MVS_' for "enum pci_interrupt_cause"Chen Gang2-34/+34
The direct cause is IRQ_SPI is already defined as a macro in unicore32 architecture (also, blackfin and mips architectures define it). The related error (unicore32 with allmodconfig) CC [M] drivers/scsi/mvsas/mv_94xx.o In file included from drivers/scsi/mvsas/mv_94xx.c:27: drivers/scsi/mvsas/mv_94xx.h:176: error: expected identifier before numeric constant And IRQ_SAS_A and IRQ_SAS_B are used as 'u32' (although "enum pci_interrupt_cause" is not used directly, now). All together, need add 'MVS_' for "enum pci_interrupt_cause". Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Xuetao Guan <gxt@mprc.pku.edu.cn> Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
2014-06-19scsi: mvsas: mv_sas.c: Fix for possible null pointer dereferenceRickard Strandqvist1-10/+14
There is otherwise a risk of a possible null pointer dereference. Was largely found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-06-02mvsas: Recognise device/subsystem 9485/9485 as 88SE9485Ben Hutchings1-0/+9
Matt Taggart reported that mvsas didn't bind to the Marvell SAS controller on a Supermicro AOC-SAS2LP-MV8 board. lspci reports it as: 01:00.0 RAID bus controller [0104]: Marvell Technology Group Ltd. Device [1b4b:9485] (rev 03) Subsystem: Marvell Technology Group Ltd. Device [1b4b:9485] [...] Add it to the device table as chip_9485. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Reported-by: Matt Taggart <taggart@debian.org> Tested-by: Matt Taggart <taggart@debian.org> Acked-By: Jan "Yenya" Kasprzak <kas@fi.muni.cz> Signed-off-by: Christoph Hellwig <hch@lst.de>
2013-10-14SCSI: remove unnecessary pci_set_drvdata()Jingoo Han1-1/+0
Since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound), the driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: James Bottomley <JBottomley@parallels.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-10-14treewide: Fix typo in printkMasanari Iida1-1/+1
Correct spelling typo within various part of the kernel Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-07-23[SCSI] mvsas: Fix kernel panic on tile due to unaligned data accessJames Bottomley2-3/+9
slot->response is a 64 bit quantity (and accessed as such), but its alignment is only 32 bits. This doesn't cause a problem on x86, but apparently causes a kernel panic on Tile: Stack dump complete Kernel panic - not syncing: Kernel unalign fault running the idle task! Starting stack dump of tid 0, pid 0 (swapper) on cpu 1 at cycle 341586172541 frame 0: 0xfffffff700140ee0 dump_stack+0x0/0x20 (sp 0xfffffe43ffedf420) frame 1: 0xfffffff700283270 panic+0x150/0x3a0 (sp 0xfffffe43ffedf420) frame 2: 0xfffffff70012bff8 jit_bundle_gen+0xfd8/0x27e0 (sp 0xfffffe43ffedf4c8) frame 3: 0xfffffff7003b5b68 do_unaligned+0xc0/0x5a0 (sp 0xfffffe43ffedf710) frame 4: 0xfffffff70044ca78 handle_interrupt+0x270/0x278 (sp 0xfffffe43ffedf840) <interrupt 17 while in kernel mode> frame 5: 0xfffffff7002ac370 mvs_slot_complete+0x5f0/0x12a0 (sp 0xfffffe43ffedfa90) frame 6: 0xfffffff7002abec0 mvs_slot_complete+0x140/0x12a0 (sp 0xfffffe43ffedfa90) frame 7: 0xfffffff7005cc840 mvs_int_rx+0x140/0x2a0 (sp 0xfffffe43ffedfb00) frame 8: 0xfffffff7005bbaf0 mvs_94xx_isr+0xd8/0x2b8 (sp 0xfffffe43ffedfb68) frame 9: 0xfffffff700658ba0 mvs_tasklet+0x128/0x1f8 (sp 0xfffffe43ffedfba8) frame 10: 0xfffffff7003e8230 tasklet_action+0x178/0x2c8 (sp 0xfffffe43ffedfbe0) frame 11: 0xfffffff700103850 __do_softirq+0x210/0x398 (sp 0xfffffe43ffedfc40) frame 12: 0xfffffff700180308 do_softirq+0xc8/0x140 (sp 0xfffffe43ffedfcd8) frame 13: 0xfffffff7000bd7f0 irq_exit+0xb0/0x158 (sp 0xfffffe43ffedfcf0) frame 14: 0xfffffff70013fa58 tile_dev_intr+0x1d8/0x2f0 (sp 0xfffffe43ffedfd00) frame 15: 0xfffffff70044ca78 handle_interrupt+0x270/0x278 (sp 0xfffffe43ffedfd40) <interrupt 30 while in kernel mode> frame 16: 0xfffffff700143e68 _cpu_idle_nap+0x0/0x18 (sp 0xfffffe43ffedffb0) frame 17: 0xfffffff700482480 cpu_idle+0x310/0x428 (sp 0xfffffe43ffedffb0) Since the check is just for non-zero, split it to be two 32 bit accesses (preserving speed in the fast path) and do a get_unaligned() in the slow path. This is a modification of a wholly get_unaligned patch submitted by Paul Guo Reported-by: Paul Guo <ggang@tilera.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-04[SCSI] libsas: implement > 16 byte CDB supportJames Bottomley1-1/+2
Remove the arbitrary expectation in libsas that all SCSI commands are 16 bytes or less. Instead do all copies via cmd->cmd_len (and use a pointer to this in the libsas task instead of a copy). Note that this still doesn't enable > 16 byte CDB support in the underlying drivers because their internal format has to be fixed and the wire format of > 16 byte CDBs according to the SAS spec is different. the libsas drivers (isci, aic94xx, mvsas and pm8xxx are all updated for this change. Cc: Lukasz Dorau <lukasz.dorau@intel.com> Cc: Maciej Patelczyk <maciej.patelczyk@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Jack Wang <xjtuwjp@gmail.com> Cc: Lindar Liu <lindar_liu@usish.com> Cc: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-10[SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_typeJames Bottomley3-11/+11
These enums have been separate since the dawn of SAS, mainly because the latter is a procotol only enum and the former includes additional state for libsas. The dichotomy causes endless confusion about which one you should use where and leads to pointless warnings like this: drivers/scsi/mvsas/mv_sas.c: In function 'mvs_update_phyinfo': drivers/scsi/mvsas/mv_sas.c:1162:34: warning: comparison between 'enum sas_device_type' and 'enum sas_dev_type' [-Wenum-compare] Fix by eliminating one of them. The one kept is effectively the sas.h one, but call it sas_device_type and make sure the enums are all properly namespaced with the SAS_ prefix. Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-04-15[SCSI] mvsas: Use PCI_VENDOR_ID_MARVELL_EXT for 0x1b4bMyron Stowe1-3/+3
With the 0x1b4b vendor ID #define in place, convert hard-coded ID values. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: James Bottomley <James.Bottomley@hansenpartnership.com>
2013-02-22[SCSI] mvsas: fixed timeout issue when removing moduleXiangliang Yu2-2/+9
Root cause is libsas will clear asd_sas_port phy_mask value in sas_port_deform after triggering destruct workqueue, but the workqueue will send sync cmd and still need phy_mask value. Now, mvsas using asd_sas_phy setting instead of asd_sas_port setting. Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-01-03Drivers: scsi: remove __dev* attributes.Greg Kroah-Hartman6-23/+21
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Adam Radford <linuxraid@lsi.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-30[SCSI] mvsas: fix undefined bit shiftXi Wang2-13/+3
The macro bit(n) is defined as ((u32)1 << n), and thus it doesn't work with n >= 32, such as in mvs_94xx_assign_reg_set(): if (i >= 32) { mvi->sata_reg_set |= bit(i); ... } The shift ((u32)1 << n) with n >= 32 also leads to undefined behavior. The result varies depending on the architecture. This patch changes bit(n) to do a 64-bit shift. It also simplifies mv_ffc64() using __ffs64(), since invoking ffz() with ~0 is undefined. Signed-off-by: Xi Wang <xi.wang@gmail.com> Acked-by: Xiangliang Yu <yuxiangl@marvell.com> Cc: stable@vger.kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-14[SCSI] mvsas: Fix oops when ata commond timeout.Jianpeng Ma1-1/+1
Kernel message follows: [ 511.712011] sd 11:0:0:0: [sdf] command ffff8800a4e81400 timed out [ 511.712022] sas: Enter sas_scsi_recover_host busy: 1 failed: 1 [ 511.712024] sas: trying to find task 0xffff8800a4d24c80 [ 511.712026] sas: sas_scsi_find_task: aborting task 0xffff8800a4d24c80 [ 511.712029] drivers/scsi/mvsas/mv_sas.c 1631:mvs_abort_task() mvi=ffff8800b5300000 task=ffff8800a4d24c80 slot=ffff8800b5325038 slot_idx=x0 [ 511.712035] BUG: unable to handle kernel NULL pointer dereference at 0000000000000058 [ 511.712040] IP: [<ffffffff815f8c0c>] _raw_spin_lock_irqsave+0xc/0x30 [ 511.712047] PGD 0 [ 511.712049] Oops: 0002 [#1] SMP [ 511.712052] Modules linked in: mvsas libsas scsi_transport_sas raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq async_tx [last unloaded: mvsas] [ 511.712062] CPU 3 [ 511.712066] Pid: 7322, comm: scsi_eh_11 Not tainted 3.5.0+ #106 To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M. [ 511.712068] RIP: 0010:[<ffffffff815f8c0c>] [<ffffffff815f8c0c>] _raw_spin_lock_irqsave+0xc/0x30 [ 511.712073] RSP: 0018:ffff880098d3bcb0 EFLAGS: 00010086 [ 511.712074] RAX: 0000000000000286 RBX: 0000000000000058 RCX: 00000000000000c3 [ 511.712076] RDX: 0000000000000100 RSI: 0000000000000046 RDI: 0000000000000058 [ 511.712078] RBP: ffff880098d3bcb0 R08: 000000000000000a R09: 0000000000000000 [ 511.712080] R10: 00000000000004e8 R11: 00000000000004e7 R12: ffff8800a4d24c80 [ 511.712082] R13: 0000000000000050 R14: ffff8800b5325038 R15: ffff8800a4eafe00 [ 511.712084] FS: 0000000000000000(0000) GS:ffff8800bdb80000(0000) knlGS:0000000000000000 [ 511.712086] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 511.712088] CR2: 0000000000000058 CR3: 00000000a4ce6000 CR4: 00000000000407e0 [ 511.712090] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 511.712091] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 511.712093] Process scsi_eh_11 (pid: 7322, threadinfo ffff880098d3a000, task ffff8800a61dde40) [ 511.712095] Stack: [ 511.712096] ffff880098d3bce0 ffffffff81060683 ffff880000000000 0000000000000000 [ 511.712099] ffff8800a4d24c80 ffff8800b5300000 ffff880098d3bcf0 ffffffffa0076a88 [ 511.712102] ffff880098d3bd50 ffffffffa0079bb5 ffff880000000000 ffff880000000018 [ 511.712106] Call Trace: [ 511.712110] [<ffffffff81060683>] complete+0x23/0x60 [ 511.712115] [<ffffffffa0076a88>] mvs_tmf_timedout+0x18/0x20 [mvsas] [ 511.712119] [<ffffffffa0079bb5>] mvs_slot_complete+0x765/0x7d0 [mvsas] [ 511.712125] [<ffffffffa005a17d>] sas_scsi_recover_host+0x55d/0xdb0 [libsas] [ 511.712128] [<ffffffff8106d600>] ? idle_balance+0xe0/0x130 [ 511.712133] [<ffffffff813b150c>] scsi_error_handler+0xcc/0x470 [ 511.712136] [<ffffffff815f7ad0>] ? __schedule+0x370/0x730 [ 511.712139] [<ffffffff8105f728>] ? __wake_up_common+0x58/0x90 [ 511.712142] [<ffffffff813b1440>] ? scsi_eh_get_sense+0x110/0x110 [ 511.712146] [<ffffffff810571be>] kthread+0x8e/0xa0 [ 511.712150] [<ffffffff816015f4>] kernel_thread_helper+0x4/0x10 [ 511.712153] [<ffffffff81057130>] ? flush_kthread_work+0x120/0x120 [ 511.712156] [<ffffffff816015f0>] ? gs_change+0xb/0xb [ 511.712157] Code: 8a 00 01 00 00 89 d0 f0 66 0f b1 0f 66 39 d0 0f 94 c0 0f b6 c0 5d c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 9c 58 fa ba 00 01 00 00 <f0> 66 0f c1 17 0f b6 ce 38 d1 74 11 0f 1f 84 00 00 00 00 00 f3 [ 511.712191] RIP [<ffffffff815f8c0c>] _raw_spin_lock_irqsave+0xc/0x30 [ 511.712194] RSP <ffff880098d3bcb0> [ 511.712196] CR2: 0000000000000058 [ 511.712198] ---[ end trace a781c7b1e65db92c ]--- Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20[SCSI] mvsas: remove unused variable in mvs_task_exec()Dan Carpenter1-1/+0
We don't use "dev" any more after 07ec747a5f ("libsas: remove ata_port.lock management duties from lldds") and it causes a compile warning. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20[SCSI] libsas: trim sas_task of slow path infrastructureDan Williams1-10/+10
The timer and the completion are only used for slow path tasks (smp, and lldd tmfs), yet we incur the allocation space and cpu setup time for every fast path task. Cc: Xiangliang Yu <yuxiangl@marvell.com> Acked-by: Jack Wang <jack_wang@usish.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-22Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2-10/+3
SCSI updates from James Bottomley: "The update includes the usual assortment of driver updates (lpfc, qla2xxx, qla4xxx, bfa, bnx2fc, bnx2i, isci, fcoe, hpsa) plus a huge amount of infrastructure work in the SAS library and transport class as well as an iSCSI update. There's also a new SCSI based virtio driver." * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (177 commits) [SCSI] qla4xxx: Update driver version to 5.02.00-k15 [SCSI] qla4xxx: trivial cleanup [SCSI] qla4xxx: Fix sparse warning [SCSI] qla4xxx: Add support for multiple session per host. [SCSI] qla4xxx: Export CHAP index as sysfs attribute [SCSI] scsi_transport: Export CHAP index as sysfs attribute [SCSI] qla4xxx: Add support to display CHAP list and delete CHAP entry [SCSI] iscsi_transport: Add support to display CHAP list and delete CHAP entry [SCSI] pm8001: fix endian issue with code optimization. [SCSI] pm8001: Fix possible racing condition. [SCSI] pm8001: Fix bogus interrupt state flag issue. [SCSI] ipr: update PCI ID definitions for new adapters [SCSI] qla2xxx: handle default case in qla2x00_request_firmware() [SCSI] isci: improvements in driver unloading routine [SCSI] isci: improve phy event warnings [SCSI] isci: debug, provide state-enum-to-string conversions [SCSI] scsi_transport_sas: 'enable' phys on reset [SCSI] libsas: don't recover end devices attached to disabled phys [SCSI] libsas: fixup target_port_protocols for expanders that don't report sata [SCSI] libsas: set attached device type and target protocols for local phys ...
2012-03-20scsi: remove the second argument of k[un]map_atomic()Cong Wang1-2/+2
Signed-off-by: Cong Wang <amwang@redhat.com>
2012-02-29[SCSI] libsas: async ata scanningDan Williams1-1/+0
libsas ata error handling is already async but this does not help the scan case. Move initial link recovery out from under host->scan_mutex, and delay synchronization with eh until after all port probe/recovery work has been queued. Device ordering is maintained with scan order by still calling sas_rphy_add() in order of domain discovery. Since we now scan the domain list when invoking libata-eh we need to be careful to check for fully initialized ata ports. Acked-by: Jack Wang <jack_wang@usish.com> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-29[SCSI] libsas: fix sas_find_local_phy(), take phy referencesDan Williams1-1/+2
In the direct-attached case this routine returns the phy on which this device was first discovered. Which is broken if we want to support wide-targets, as this phy reference can become stale even though the port is still active. In the expander-attached case this routine tries to lookup the phy by scanning the attached sas addresses of the parent expander, and BUG_ONs if it can't find it. However since eh and the libsas workqueue run independently we can still be attempting device recovery via eh after libsas has recorded the device as detached. This is even easier to hit now that eh is blocked while device domain rediscovery takes place, and that libata is fed more timed out commands increasing the chances that it will try to recover the ata device. Arrange for dev->phy to always point to a last known good phy, it may be stale after the port is torn down, but it will catch up for wide port reconfigurations, and never be NULL. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-19[SCSI] libsas: remove ata_port.lock management duties from llddsDan Williams1-6/+0
Each libsas driver (mvsas, pm8001, and isci) has invented a different method for managing the ap->lock. The lock is held by the ata ->queuecommand() path. mvsas drops it prior to acquiring any internal locks which allows it to hold its internal lock across calls to task->task_done(). This capability is important as it is the only way the driver can flush task->task_done() instances to guarantee that it no longer has any in-flight references to a domain_device at ->lldd_dev_gone() time. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-19[SCSI] libsas: introduce sas_drain_work()Dan Williams1-1/+1
When an lldd invokes ->notify_port_event() it can trigger a chain of libsas events to: 1/ form the port and find the direct attached device 2/ if the attached device is an expander perform domain discovery A call to flush_workqueue() will only flush the initial port formation work. Currently libsas users need to call scsi_flush_work() up to the max depth of chain (which will grow from 2 to 3 when ata discovery is moved to its own discovery event). Instead of open coding multiple calls switch to use drain_workqueue() to flush sas work. drain_workqueue() does not handle new work submitted during the drain so libsas needs a bit of infrastructure to hold off unchained work submissions while a drain is in flight. A lldd ->notify() event is considered 'unchained' while a sas_discover_event() is 'chained'. As Tejun notes: "For now, I think it would be best to add private wrapper in libsas to support deferring unchained work items while draining." Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-19[SCSI] libsas: kill sas_slave_destroyDan Williams1-1/+0
Per commit 3e4ec344 "libata: kill ATA_FLAG_DISABLED" needing to set ATA_DEV_NONE is a holdover from before libsas converted to the "new-style" ata-eh. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-31[SCSI] mv_sas: OCZ RevoDrive3 & zDrive R4 supportRobin H. Johnson1-0/+10
In the OCZ RevoDrive3/zDrive R4 series, the "OCZ SuperScale Storage Controller" with "Virtualized Controller Architecture 2.0" really seems to be a Marvell 88SE9485 part, with OCZ firmware/BIOS. Developed and tested on OCZ RevoDrive3 120GB [PCI 1b85:1021] Should work on: - OCZ RevoDrive3 (2x SandForce 2281) - OCZ RevoDrive3 X2 (4x SandForce 2281) - OCZ zDrive R4 CM84 (4x SandForce 2281) - OCZ zDrive R4 CM88 (8x SandForce 2281) - OCZ zDrive R4 RM84 (4x SandForce 2582) - OCZ zDrive R4 RM88 (8x SandForce 2582) All of this because a friend recently bought a OCZ RevoDrive3 and was bitten by the lack of Linux support. Notes from testing: ------------------- - SMART works. - VPD Device Identification is "OCZ-REVODRIVE3" - Thin provisioning/TRIM seems to be implemented as WRITE SAME UNMAP, with deterministic (non-zero) read after TRIM, but I'm not sure if it works 100% in my testing. - Some of the tuning in the firmware seems to ensure much better performance when in a RAID0 setup than using the two devices seperately. I have not tested booting from the SSD, because all of this was developed and tested remotely from the actual hardware. Signed-off-by: Robin H. Johnson <robbat2@gentoo.org> Thanks-To: Gordon Pritchard <gordp@sfu.ca> Acked-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds5-65/+68
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (204 commits) [SCSI] qla4xxx: export address/port of connection (fix udev disk names) [SCSI] ipr: Fix BUG on adapter dump timeout [SCSI] megaraid_sas: Fix instance access in megasas_reset_timer [SCSI] hpsa: change confusing message to be more clear [SCSI] iscsi class: fix vlan configuration [SCSI] qla4xxx: fix data alignment and use nl helpers [SCSI] iscsi class: fix link local mispelling [SCSI] iscsi class: Replace iscsi_get_next_target_id with IDA [SCSI] aacraid: use lower snprintf() limit [SCSI] lpfc 8.3.27: Change driver version to 8.3.27 [SCSI] lpfc 8.3.27: T10 additions for SLI4 [SCSI] lpfc 8.3.27: Fix queue allocation failure recovery [SCSI] lpfc 8.3.27: Change algorithm for getting physical port name [SCSI] lpfc 8.3.27: Changed worst case mailbox timeout [SCSI] lpfc 8.3.27: Miscellanous logic and interface fixes [SCSI] megaraid_sas: Changelog and version update [SCSI] megaraid_sas: Add driver workaround for PERC5/1068 kdump kernel panic [SCSI] megaraid_sas: Add multiple MSI-X vector/multiple reply queue support [SCSI] megaraid_sas: Add support for MegaRAID 9360/9380 12GB/s controllers [SCSI] megaraid_sas: Clear FUSION_IN_RESET before enabling interrupts ...
2011-10-02[SCSI] isci: export phy events via ->lldd_control_phy()Dan Williams1-1/+1
Allow the sas-transport-class to update events for local phys via a new PHY_FUNC_GET_EVENTS command to ->lldd_control_phy(). Fixup drivers that are not prepared for new enum phy_func values, and unify ->lldd_control_phy() error codes. These are the SAS defined phy events that are reported in a smp-report-phy-error-log command: * /sys/class/sas_phy/<phyX>/invalid_dword_count * /sys/class/sas_phy/<phyX>/running_disparity_error_count * /sys/class/sas_phy/<phyX>/loss_of_dword_sync_count * /sys/class/sas_phy/<phyX>/phy_reset_problem_count Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02[SCSI] mvsas: update driver versionXiangliang Yu1-1/+1
This will synchronize the version string with internal driver. Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02[SCSI] mvsas: fixed SMP request watchdog timeout issue.Xiangliang Yu2-0/+5
set SMP link timeout value to maximum. Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02[SCSI] mvsas: expander write performance enhancementXiangliang Yu2-0/+10
with 1 expander, connect 8 HDD, the write performance will be improved by 80%. Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02[SCSI] mvsas: change SL mode0 register valueXiangliang Yu1-0/+8
-- change connection behavior -- set bit8 to 1 for performance tuning -- set bit0 to 0 to enable retry for no_dest reject case. Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02[SCSI] mvsas: fixed wrong destination when hiting NAK for command frameXiangliang Yu1-0/+10
disable non data frame retry Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02[SCSI] mvsas: fixed some disk spin up issueXiangliang Yu2-0/+16
spin up issue: some direct attached SAS device can't spin up Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02[SCSI] mvsas: add support for 9480 device idXiangliang Yu1-0/+9
Add support for Marvell 88SE9480 SAS/SATA HBA Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02[SCSI] mvsas: fix expander link errorXiangliang Yu1-3/+3
Expanders fail to link when the phy rates are mismatched. Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-02[SCSI] mvsas: remove mvs_slave_{alloc|configure}Dan Williams3-34/+2
libsas now handles: 1/ limiting ata scanning to lun0 2/ maximizing the queue_depth of sas devices (up to 256, mvsas only supports 64) 3/ changes to /sys/block/<sdX>/device/queue_depth for ata devices Acked-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-09-15Merge branch 'master' into for-nextJiri Kosina9-484/+975
Fast-forward merge with Linus to be able to merge patches based on more recent version of the tree.
2011-09-15Remove unneeded version.h includes from drivers/scsi/Jesper Juhl1-1/+0
It was pointed out by 'make versioncheck' that some includes of linux/version.h are not needed in drivers/scsi/. This patch removes them. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-27[SCSI] libsas: export sas_alloc_task()Dan Williams1-26/+3
Now that isci has added a 3rd open coded user of this functionality just share the libsas version. Acked-by: Jack Wang <jack_wang@usish.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-26[SCSI] mvsas: Add support for interrupt taskletXiangliang Yu5-26/+40
Add support for interrupt tasklet, which will improve performance. Correct spelling of "20011" [jejb: simplified ifdefs and fixed unused variable problem] Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-26[SCSI] mvsas: update commentsXiangliang Yu7-55/+24
Remove obsolete comments and add new comments Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-26[SCSI] mvsas: misc improvementsXiangliang Yu7-113/+127
Change code to match HBA datasheet. Change code to make it readable. Add support big endian for mvs_prd_imt. Add cpu_to_le32 and cpu_to_le64 to use on addr. Add scan_finished for structure mvs_prv_info. Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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