Commit Graph

268 Commits

Author SHA1 Message Date
Linus Torvalds
f290cbacb6 SCSI for-linus on 20161222
This is mostly stuff which missed the initial pull.  There's a new
 driver: qedi, some ufs, ibmvscsis and ncr5380 updates plus some
 assorted driver fixes and also a fix for the bug where if a device
 goes into a blocked state between configuration and sysfs device add
 (which can be a long time under async probing) it would become
 permanently blocked.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull late SCSI updates from James Bottomley:
 "This is mostly stuff which missed the initial pull.

  There's a new driver: qedi, and some ufs, ibmvscsis and ncr5380
  updates plus some assorted driver fixes and also a fix for the bug
  where if a device goes into a blocked state between configuration and
  sysfs device add (which can be a long time under async probing) it
  would become permanently blocked"

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (30 commits)
  scsi: avoid a permanent stop of the scsi device's request queue
  scsi: mpt3sas: Recognize and act on iopriority info
  scsi: qla2xxx: Fix Target mode handling with Multiqueue changes.
  scsi: qla2xxx: Add Block Multi Queue functionality.
  scsi: qla2xxx: Add multiple queue pair functionality.
  scsi: qla2xxx: Utilize pci_alloc_irq_vectors/pci_free_irq_vectors calls.
  scsi: qla2xxx: Only allow operational MBX to proceed during RESET.
  scsi: hpsa: remove memory allocate failure message
  scsi: Update 3ware driver email addresses
  scsi: zfcp: fix rport unblock race with LUN recovery
  scsi: zfcp: do not trace pure benign residual HBA responses at default level
  scsi: zfcp: fix use-after-"free" in FC ingress path after TMF
  scsi: libcxgbi: return error if interface is not up
  scsi: cxgb4i: libcxgbi: add missing module_put()
  scsi: cxgb4i: libcxgbi: cxgb4: add T6 iSCSI completion feature
  scsi: cxgb4i: libcxgbi: add active open cmd for T6 adapters
  scsi: cxgb4i: use cxgb4_tp_smt_idx() to get smt_idx
  scsi: qedi: Add QLogic FastLinQ offload iSCSI driver framework.
  scsi: aacraid: remove wildcard for series 9 controllers
  scsi: ibmvscsi: add write memory barrier to CRQ processing
  ...
2016-12-23 10:36:19 -08:00
Linus Torvalds
d5db84a871 Merge branch 'scsi-target-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bvanassche/linux
Pull scsi target cleanups from Bart Van Assche:
 "The changes here are:

   - a few small bug fixes for the iSCSI and user space target drivers.

   - minimize the target build time by about 30% by rearranging #include
     directives

   - fix the second argument passed to percpu_ida_alloc()

   - reduce the number of false positive warnings reported by sparse

  These patches pass Wu Fengguang's build bot tests and also the
  linux-next tests"

* 'scsi-target-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bvanassche/linux:
  iscsi-target: Return error if unable to add network portal
  target: Fix spelling mistake and unwrap multi-line text
  target/iscsi: Fix double free in lio_target_tiqn_addtpg()
  target/user: Fix use-after-free of tcmu_cmds if they are expired
  target: Minimize #include directives
  target/user: Add an #include directive
  cxgbit: Add an #include directive
  ibmvscsi_tgt: Add two #include directives
  sbp-target: Add an #include directive
  qla2xxx: Add an #include directive
  configfs: Minimize #include directives
  usb: gadget: Fix second argument of percpu_ida_alloc()
  sbp-target: Fix second argument of percpu_ida_alloc()
  target/user: Fix a data type in tcmu_queue_cmd()
  target: Use NULL instead of 0 to represent a pointer
2016-12-21 10:16:05 -08:00
Quinn Tran
093df73771 scsi: qla2xxx: Fix Target mode handling with Multiqueue changes.
- Fix race condition between dpc_thread accessing Multiqueue resources
  and qla2x00_remove_one thread trying to free resource.
- Fix out of order free for Multiqueue resources. Also, Multiqueue
  interrupts needs a workqueue. Interrupt needed to stop before
  the wq can be destroyed.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-12-14 15:37:59 -05:00
Michael Hernandez
d74595278f scsi: qla2xxx: Add multiple queue pair functionality.
Replaced existing multiple queue functionality with framework
that allows for the creation of pairs of request and response queues,
either at start of day or dynamically.

Queue pair creation depend on module parameter "ql2xmqsupport",
which need to be enabled to create queue pair.

Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Michael Hernandez <michael.hernandez@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-12-14 15:37:58 -05:00
Michael Hernandez
4fa1834559 scsi: qla2xxx: Utilize pci_alloc_irq_vectors/pci_free_irq_vectors calls.
Replaces the old pci_enable_msi[x]* and pci_disable_msi[x] calls.

Signed-off-by: Michael Hernandez <michael.hernandez@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-12-14 15:37:58 -05:00
Bart Van Assche
09ce66aee7 qla2xxx: Add an #include directive
The following statement in qla_isr.c needs the size of struct
t10_pi_tuple:

    spt += j;

Hence include the <linux/t10-pi.h> header file.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
2016-12-09 10:20:09 -08:00
Johannes Thumshirn
75cc8cfc6e scsi: change FC drivers to use 'struct bsg_job'
Change FC drivers to use 'struct bsg_job' from bsg-lib.h instead of
'struct fc_bsg_job' from scsi_transport_fc.h and remove 'struct
fc_bsg_job'.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-17 20:15:25 -05:00
Johannes Thumshirn
01e0e15c8b scsi: don't use fc_bsg_job::request and fc_bsg_job::reply directly
Don't use fc_bsg_job::request and fc_bsg_job::reply directly, but use
helper variables bsg_request and bsg_reply. This will be helpful when
transitioning to bsg-lib.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-17 20:15:24 -05:00
Christoph Hellwig
27c0e83b27 scsi: qla2xxx: Use struct t10_pi_tuple
Instead of defining a local version of it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-15 09:41:56 -04:00
Sawan Chandak
75d560e095 qla2xxx: Fix duplicate message id.
Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-07-15 15:35:51 -04:00
Joe Carnuccio
ef55e5133c qla2xxx: Correction to function qla26xx_dport_diagnostics().
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-07-15 15:35:49 -04:00
Joe Carnuccio
41233cd3a4 qla2xxx: Add support to handle Loop Init error Asynchronus event.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-07-15 15:35:49 -04:00
Joe Carnuccio
ec89146215 qla2xxx: Add bsg interface to support D_Port Diagnostics.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-07-15 15:31:31 -04:00
Joe Carnuccio
a29b3dd7aa qla2xxx: Shutdown board on thermal shutdown aen.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-07-15 15:31:31 -04:00
Johannes Thumshirn
ef8d1d51aa qla2xxx: setup data needed in ISR before setting up the ISR
qla2xxx first calls request_irq() and then does the setup of the queue
entry data needed in the interrupt handlers in when using MSI-X. This
could lead to a NULL pointer dereference when an IRQ fires between the
request_irq() call and the assignment of the qentry data structure to
the rsp->msix field. A possible case for such a race would be in the
kdump case when the HBA's IRQs are still enabled but the driver is
undergoing a new initialisation and thus is not aware of already
activated IRQs in the HBA.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-07-15 14:59:03 -04:00
Bruno Prémont
262e2bfd7d qla2xxx: Fix NULL pointer deref in QLA interrupt
In qla24xx_process_response_queue() rsp->msix->cpuid may trigger NULL
pointer dereference when rsp->msix is NULL:

[    5.622457] NULL pointer dereference at 0000000000000050
[    5.622457] IP: [<ffffffff8155e614>] qla24xx_process_response_queue+0x44/0x4b0
[    5.622457] PGD 0
[    5.622457] Oops: 0000 [#1] SMP
[    5.622457] Modules linked in:
[    5.622457] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.6.3-x86_64 #1
[    5.622457] Hardware name: HP ProLiant DL360 G5, BIOS P58 05/02/2011
[    5.622457] task: ffff8801a88f3740 ti: ffff8801a8954000 task.ti: ffff8801a8954000
[    5.622457] RIP: 0010:[<ffffffff8155e614>]  [<ffffffff8155e614>] qla24xx_process_response_queue+0x44/0x4b0
[    5.622457] RSP: 0000:ffff8801afb03de8  EFLAGS: 00010002
[    5.622457] RAX: 0000000000000000 RBX: 0000000000000032 RCX: 00000000ffffffff
[    5.622457] RDX: 0000000000000002 RSI: ffff8801a79bf8c8 RDI: ffff8800c8f7e7c0
[    5.622457] RBP: ffff8801afb03e68 R08: 0000000000000000 R09: 0000000000000000
[    5.622457] R10: 00000000ffff8c47 R11: 0000000000000002 R12: ffff8801a79bf8c8
[    5.622457] R13: ffff8800c8f7e7c0 R14: ffff8800c8f60000 R15: 0000000000018013
[    5.622457] FS:  0000000000000000(0000) GS:ffff8801afb00000(0000) knlGS:0000000000000000
[    5.622457] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.622457] CR2: 0000000000000050 CR3: 0000000001e07000 CR4: 00000000000006e0
[    5.622457] Stack:
[    5.622457]  ffff8801afb03e30 ffffffff810c0f2d 0000000000000086 0000000000000002
[    5.622457]  ffff8801afb03e28 ffffffff816570e1 ffff8800c8994628 0000000000000002
[    5.622457]  ffff8801afb03e60 ffffffff816772d4 b47c472ad6955e68 0000000000000032
[    5.622457] Call Trace:
[    5.622457]  <IRQ>
[    5.622457]  [<ffffffff810c0f2d>] ? __wake_up_common+0x4d/0x80
[    5.622457]  [<ffffffff816570e1>] ? usb_hcd_resume_root_hub+0x51/0x60
[    5.622457]  [<ffffffff816772d4>] ? uhci_hub_status_data+0x64/0x240
[    5.622457]  [<ffffffff81560d00>] qla24xx_intr_handler+0xf0/0x2e0
[    5.622457]  [<ffffffff810d569e>] ? get_next_timer_interrupt+0xce/0x200
[    5.622457]  [<ffffffff810c89b4>] handle_irq_event_percpu+0x64/0x100
[    5.622457]  [<ffffffff810c8a77>] handle_irq_event+0x27/0x50
[    5.622457]  [<ffffffff810cb965>] handle_edge_irq+0x65/0x140
[    5.622457]  [<ffffffff8101a498>] handle_irq+0x18/0x30
[    5.622457]  [<ffffffff8101a276>] do_IRQ+0x46/0xd0
[    5.622457]  [<ffffffff817f8fff>] common_interrupt+0x7f/0x7f
[    5.622457]  <EOI>
[    5.622457]  [<ffffffff81020d38>] ? mwait_idle+0x68/0x80
[    5.622457]  [<ffffffff8102114a>] arch_cpu_idle+0xa/0x10
[    5.622457]  [<ffffffff810c1b97>] default_idle_call+0x27/0x30
[    5.622457]  [<ffffffff810c1d3b>] cpu_startup_entry+0x19b/0x230
[    5.622457]  [<ffffffff810324c6>] start_secondary+0x136/0x140
[    5.622457] Code: 00 00 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 8b 47 58 a8 02 0f 84 c5 00 00 00 48 8b 46 50 49 89 f4 65 8b 15 34 bb aa 7e <39> 50 50 74 11 89 50 50 48 8b 46 50 8b 40 50 41 89 86 60 8b 00
[    5.622457] RIP  [<ffffffff8155e614>] qla24xx_process_response_queue+0x44/0x4b0
[    5.622457]  RSP <ffff8801afb03de8>
[    5.622457] CR2: 0000000000000050
[    5.622457] ---[ end trace fa2b19c25106d42b ]---
[    5.622457] Kernel panic - not syncing: Fatal exception in interrupt

The affected code was introduced by commit cdb898c52d
(qla2xxx: Add irq affinity notification).

Only dereference rsp->msix when it has been set so the machine can boot
fine. Possibly rsp->msix is unset because:
[    3.479679] qla2xxx [0000:00:00.0]-0005: : QLogic Fibre Channel HBA Driver: 8.07.00.33-k.
[    3.481839] qla2xxx [0000:13:00.0]-001d: : Found an ISP2432 irq 17 iobase 0xffffc90000038000.
[    3.484081] qla2xxx [0000:13:00.0]-0035:0: MSI-X; Unsupported ISP2432 (0x2, 0x3).
[    3.485804] qla2xxx [0000:13:00.0]-0037:0: Falling back-to MSI mode -258.
[    3.890145] scsi host0: qla2xxx
[    3.891956] qla2xxx [0000:13:00.0]-00fb:0: QLogic QLE2460 - PCI-Express Single Channel 4Gb Fibre Channel HBA.
[    3.894207] qla2xxx [0000:13:00.0]-00fc:0: ISP2432: PCIe (2.5GT/s x4) @ 0000:13:00.0 hdma+ host#=0 fw=7.03.00 (9496).
[    5.714774] qla2xxx [0000:13:00.0]-500a:0: LOOP UP detected (4 Gbps).

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Quinn Tran <quinn.tran@qlogic.com>
CC: <stable@vger.kernel.org>  # 4.5+
Fixes: cdb898c52d
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
2016-07-05 12:42:54 -07:00
Chad Dupuis
0a583e4531 qla2xxx: Remove unneeded link offline message.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-02-23 21:27:02 -05:00
Quinn Tran
cb43285ff7 qla2xxx: Fix stale pointer access.
[ Upstream Commit 84e32a06f4 ]

Commit 84e32a0 ("qla2xxx: Use pci_enable_msix_range() instead of
pci_enable_msix()") introduced a regression when target mode is enabled.
In qla24xx_enable_msix(), ha->max_rsp_queues was incorrectly set
to a value higher than the number of response queues allocated causing
an invalid dereference. Specifically here in qla2x00_init_rings():
    *rsp->in_ptr = 0;

Add additional check to make sure the pointer is valid. following
call stack will be seen

---- 8< ----
RIP: 0010:[<ffffffffa02ccadc>]  [<ffffffffa02ccadc>] qla2x00_init_rings+0xdc/0x320 [qla2xxx]
RSP: 0018:ffff880429447dd8  EFLAGS: 00010082
....
Call Trace:
[<ffffffffa02ceb40>] qla2x00_abort_isp+0x170/0x6b0 [qla2xxx]
[<ffffffffa02c6f77>] qla2x00_do_dpc+0x357/0x7f0 [qla2xxx]
[<ffffffffa02c6c20>] ? qla2x00_relogin+0x260/0x260 [qla2xxx]
[<ffffffff8107d2c9>] kthread+0xc9/0xe0
[<ffffffff8107d200>] ? flush_kthread_worker+0x90/0x90
[<ffffffff8172cc6f>] ret_from_fork+0x3f/0x70
[<ffffffff8107d200>] ? flush_kthread_worker+0x90/0x90
---- 8< ----

Cc: <stable@vger.kernel.org>
Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-02-06 19:44:30 -08:00
Quinn Tran
2f424b9b36 qla2xxx: Move atioq to a different lock to reduce lock contention
99% of the time the ATIOQ has SCSI command.  The other 1% of time
is something else.  Most of the time this interrupt does not need
to hold the hardware_lock.  We're moving the ATIO interrupt thread
to a different lock to reduce lock contention.

Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-01-07 13:57:48 -08:00
Quinn Tran
fb3269baf4 qla2xxx: Add selective command queuing
queue work element to specific process lessen cache miss

Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-01-07 13:57:47 -08:00
Quinn Tran
cdb898c52d qla2xxx: Add irq affinity notification
Register to receive notification of when irq setting change
occured.

Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-01-07 13:57:46 -08:00
Himanshu Madhani
6eb54715b5 qla2xxx: Added interface to send explicit LOGO.
This patch adds interface to send explicit LOGO
explicit LOGO using using ELS commands from driver.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-01-07 13:57:43 -08:00
Chad Dupuis
fd49a540ea qla2xxx: Do not reset ISP for error entry with an out of range handle.
Instead of resetting the adapter wait for the login to timeout
and retry. Resetting the adapter can cause extended path recovery
times.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:46:05 -07:00
Chad Dupuis
c7bc4cae0d qla2xxx: Do not reset adapter if SRB handle is in range.
If an SRB is NULL but the handle is in range just drop the
command instead of also resetting the adapter. If the handle
is in range then the command was valid at some point and may
have been aborted. Resetting the adapter can lead to extended
recovery times in this case.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:45:27 -07:00
Joe Carnuccio
17cac3a175 qla2xxx: Handle AEN8014 incoming port logout.
When we get logged out, mark the port lost and set dpc flag for relogin.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:39:16 -07:00
Bart Van Assche
ad950360ee qla2xxx: Remove __constant_ prefix
Whether htonl() or __constant_htonl() is used, if the argument
is a constant the conversion happens at compile time. Hence leave
out the __constant_ prefix for this and other endianness
conversion functions. This improves source code readability.

[jejb: checkpatch fixes]
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 10:40:32 -07:00
Bart Van Assche
52c82823cc qla2xxx: Remove set-but-not-used variables
Detected these variables by building with W=1.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 10:34:49 -07:00
Thadeu Lima de Souza Cascardo
a30c2a3bf8 qla2xxx: prevent board_disable from running during EEH
Commit f3ddac1918 ("[SCSI] qla2xxx:
Disable adapter when we encounter a PCI disconnect.") has introduced a
code that disables the board, releasing some resources, when reading
0xffffffff.

In case this happens when there is an EEH, this read will trigger EEH
detection and set PCI channel offline. EEH will be able to recover the
card from this state by doing a reset, so it's a better option than
simply disabling the card.

Since eeh_check_failure will mark the channel as offline before
returning the read value, in case there really was an EEH, we can simply
check for pci_channel_offline, preventing the board_disable code from
running if it's true.

Without this patch, EEH code will try to access those same resources
that board_disable will try to free. This race can cause EEH recovery to
fail.

[  504.370577] EEH: Notify device driver to resume
[  504.370580] qla2xxx [0001:07:00.0]-9002:2: The device failed to resume I/O from slot/link_reset.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-12 11:17:22 -07:00
Bart Van Assche
8d2b21db49 qla2xxx: Fix indentation
Detected by smatch.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-13 08:51:39 -07:00
Sawan Chandak
718abbdca7 qla2xxx: Restore physical port WWPN only, when port down detected for FA-WWPN port.
For FA-WWPN is enabled port, if NPIV created on that port and,
if port link is brought down, then WWPN was restored from flash for both
physical and NPIV port. This will result in NPIV port and physical port
sharing same WWPN. Any application refreshing ports information  will
not be able to scan NPIV port because of this behavior. So while restoring WWPN,
only restore physical port WWPN.

Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-10 08:43:07 -07:00
Sawan Chandak
ded6411fd8 qla2xxx: Fix virtual port configuration, when switch port is disabled/enabled.
On some vendor switches, when switch port is toggled (down /up),
then in some condition driver tries to configure virtual port,
before FW is actually in ready state to process any commands on wire.
At this time, configuring virtual port can fail. Add fix in driver
to make driver wait, for FW to be ready state before

Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-10 08:42:58 -07:00
Chad Dupuis
ef86cb2059 qla2xxx: Mark port lost when we receive an RSCN for it.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-25 14:25:05 +02:00
Himanshu Madhani
2486c62765 qla2xxx: Restore WWPN in case of Loop Dead.
For FA-WWPN capable device, ISP2031 and ISP27XX, when loop
dead is detected by a driver, restore WWPN from NVRAM.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-25 14:25:05 +02:00
Chad Dupuis
e05fe29248 qla2xxx: Honor FCP_RSP retry delay timer field.
Parse the retry delay timer field from the FCP response data and if:

- It is not zero
- The SCSI status is busy or queue full

return SCSI_MLQUEUE_TARGET_BUSY for the number of milliseconds specified
in the retry delay timer field.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-25 14:25:04 +02:00
Joe Carnuccio
b5a340dd85 qla2xxx: Add diagnostic port functionality.
Add support for the D-port (diagnostic port) fabric switch feature.

(Fabric Switch initiates loopback style port testing)

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-25 14:25:03 +02:00
Joe Carnuccio
4bb2efc45f qla2xxx: ISPFX00 avoid writing semaphore register in request_irqs().
Semaphore register does not exist for ISPFx00.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-25 14:25:02 +02:00
Joe Lawrence
6b3839790b qla2xxx: Prevent probe and board_disable race
The PCI register read checking introduced in commit fe1b806f4f
("qla2xxx: Disable adapter when we encounter a PCI disconnect") is
active during driver probe. Hold off scheduling any board removal until
the driver probe has completed. This ensures that the the board_disable
work structure is initialized and more importantly, avoids racing
qla2x00_probe_one.

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:10:01 -07:00
Joe Lawrence
beb9e315e6 qla2xxx: Prevent removal and board_disable race
Introduce mutual exclusion between the qla2xxx_remove_one PCI driver
callback and qla2x00_disable_board_on_pci_error, which is scheduled as
board_disable work by qla2x00_check_reg{32,16}_for_disconnect:

* Leave the driver-specific data attached to the underlying PCI device
intact in qla2x00_disable_board_on_pci_error, so that qla2x00_remove_one
has enough breadcrumbs to determine that any board_disable work has been
completed.

* In qla2xxx_remove_one, set a bit to prevent any subsequent
board_disable work from scheduling, then cancel and wait until pending
work has completed.

* Reuse the PCI device enable count check in qla2x00_remove_one to
determine if board_disable has occured. The original purpose of this
check was unnecessary since the driver remove function wasn't called
when the probe fails.

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:10:01 -07:00
Joe Lawrence
232792b6b4 qla2xxx: Schedule board_disable only once
There are various callers of qla2x00_check_reg{32,16}_for_disconnect
that may schedule board removal on PCI-disconnect. Test-and-set a
dedicated flag before scheduling board_disable so it is invoked only
once.

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:10:00 -07:00
Joe Lawrence
c821e0d5b2 qla2xxx: Collect PCI register checks and board_disable scheduling
Add an uint16_t variant of qla2x00_check_reg_for_disconnect and use
these routines to check and schedule a PCI-disconnected board from a
centralized place.

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:09:59 -07:00
Chad Dupuis
8e5a9484ae qla2xxx: Remove restriction on starting remote device discovery on port update.
Limiting which port update events will allow the driver to kick off a
name server scan has been problematic in some corner cases so remove the
restriction and restore the previous semantic. Also move the link
up/down informational messages to the LOOP_UP and LOOP_DOWN events.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:09:44 -07:00
Alexander Gordeev
84e32a06f4 qla2xxx: Use pci_enable_msix_range() instead of pci_enable_msix()
As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Log message code 0x00c6 preserved, although it is reported
after successful call to pci_enable_msix_range(), not before
possibly unsuccessful call to pci_enable_msix(). Consumers
of the error code should not notice the difference.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: qla2xxx-upstream@qlogic.com
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:09:42 -07:00
Hannes Reinecke
9cb78c16f5 scsi: use 64-bit LUNs
The SCSI standard defines 64-bit values for LUNs, and large arrays
employing large or hierarchical LUN numbers become more and more
common.

So update the linux SCSI stack to use 64-bit LUN numbers.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-07-17 22:07:37 +02:00
Quinn Tran
f83adb617f qla2xxx: T10-Dif: add T10-PI support
Add support for T10-Dif for Target Mode to qla driver.
The driver will look for firmware attribute that support
this feature.  When the feature is present, the capabilities
will be report to TCM layer.

Add CTIO CRC2 iocb to build T10-Dif commands.
Add support routines to process good & error cases.

Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-05-19 13:31:05 +02:00
Armen Baloyan
bd21eaf92b qla2xxx: Change copyright year to 2014 in all the source files.
Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-05-19 13:31:02 +02:00
Chad Dupuis
acd3ce880c qla2xxx: Do not schedule reset when one is already active when receiving an invalid status handle.
If an adapter reset is already in progress, do not schedule another one when
we receive an invalid status handle.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-05-19 13:30:59 +02:00
Armen Baloyan
4440e46d5d [SCSI] qla2xxx: Add IOCB Abort command asynchronous handling.
Send aborts to the firmware via the request/response queue mechanism.

Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:18:53 -07:00
Armen Baloyan
faef62d134 [SCSI] qla2xxx: Fix Task Management command asynchronous handling
- Fix interpreting the wrong IOCB type for task management
functions in the response path.
- Merge the task management function handling for various adapters.

Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:18:52 -07:00
Chad Dupuis
f73cb695d3 [SCSI] qla2xxx: Add support for ISP2071.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:18:50 -07:00
Chad Dupuis
f324777ea8 [SCSI] qla2xxx: Fix multiqueue MSI-X registration.
This fixes requesting of the MSI-X vectors for the base response queue.
The iteration in the for loop in qla24xx_enable_msix() was incorrect.
We should only iterate of the first two MSI-X vectors and not the total
number of MSI-X vectors that have given to the driver for this device
from pci_enable_msix() in this function.

Cc: <stable@vger.kernel.org>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-10 12:33:21 +04:00