bkops level should be rechecked upon receiving an exception. Currently the
level is being cached and never updated.
Update bkops each time the level is checked. Also do not use the cached
bkops level value if it is disabled and then enabled.
Fixes: afdfff59a0 (scsi: ufs: handle non spec compliant bkops behaviour by device)
Link: https://lore.kernel.org/r/1574751214-8321-2-git-send-email-cang@qti.qualcomm.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Manage TMF tags with blk_{get,put}_request() instead of
ufshcd_get_tm_free_slot() / ufshcd_put_tm_slot(). Store a per-request
completion pointer in request.end_io_data instead of using a waitqueue to
report TMF completion.
Cc: Can Guo <cang@codeaurora.org>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20191209181309.196233-3-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Instead of tracking which tags are in use in the ufs_hba.lrb_in_use
bitmask, rely on the block layer tag allocation mechanism. This patch
removes the following busy-waiting loop if ufshcd_issue_devman_upiu_cmd()
and the block layer accidentally allocate the same tag for a SCSI request:
* ufshcd_queuecommand() returns SCSI_MLQUEUE_HOST_BUSY.
* The SCSI core requeues the SCSI command.
Cc: Can Guo <cang@codeaurora.org>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20191209181309.196233-2-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The FSC (NCR53CF9x-2 / SYM53CF9x-2) has a different family code than QLogic
or Emulex parts. This caused it to be detected as a FAS100A.
Unforunately, this meant the configuration of the CONFIG3 register was
incorrect. This causes data transfer issues with FAST-SCSI targets.
The FSC also has the CONFIG4 register. It can be used to enable a feature
called Active Negation which should always be enabled according to the data
manual.
Link: https://lore.kernel.org/r/20191119202021.28720-3-jongk@linux-m68k.org
Reviewed-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Kars de Jong <jongk@linux-m68k.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The order of the definitions in the esp_rev enum is important. The values
are used in comparisons for chip features.
Add a comment to the enum explaining this.
Also, the actual values for the enum fields are irrelevant, so remove the
explicit values (suggested by Geert Uytterhoeven). This makes adding a new
field in the middle of the enum easier.
Finally, move the PCSCSI definition to the right place in the enum. In its
previous location, at the end of the enum, the wrong values are written to
the CONFIG3 register when used with FAST-SCSI targets.
Link: https://lore.kernel.org/r/20191119202021.28720-2-jongk@linux-m68k.org
Signed-off-by: Kars de Jong <jongk@linux-m68k.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If cxgb4i_ddp_init() fails then cdev->cdev2ppm will be NULL, so add a check
for NULL pointer before dereferencing it.
Link: https://lore.kernel.org/r/1576676731-3068-1-git-send-email-varun@chelsio.com
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There are spelling mistakes of asynchronous in a lpfc_printf_log message
and comments. Fix these.
Link: https://lore.kernel.org/r/20191218084301.627555-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A recent change appears to have moved an #endif by accident:
drivers/scsi/lpfc/lpfc_debugfs.c:5393:18: error: 'lpfc_debugfs_dumpHBASlim_open' undeclared here (not in a function); did you mean 'lpfc_debugfs_op_dumpHBASlim'?
drivers/scsi/lpfc/lpfc_debugfs.c:5394:18: error: 'lpfc_debugfs_lseek' undeclared here (not in a function); did you mean 'lpfc_debugfs_nvme_trc'?
drivers/scsi/lpfc/lpfc_debugfs.c:5395:18: error: 'lpfc_debugfs_read' undeclared here (not in a function); did you mean 'lpfc_debug_dump_q'?
drivers/scsi/lpfc/lpfc_debugfs.c:5396:18: error: 'lpfc_debugfs_release' undeclared here (not in a function); did you mean 'lpfc_debugfs_terminate'?
drivers/scsi/lpfc/lpfc_debugfs.c:5402:18: error: 'lpfc_debugfs_dumpHostSlim_open' undeclared here (not in a function); did you mean 'lpfc_debugfs_op_dumpHostSlim'?
Move it back to where it was previously.
Fixes: 95bfc6d8ad ("scsi: lpfc: Make FW logging dynamically configurable")
Link: https://lore.kernel.org/r/20191216131701.3125077-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
24 fixes, all in drivers. The lion's share (16) are qla2xxx and the
rest are iscsi (3), ufs (2), smarpqi, lpfc and libsas.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"24 fixes, all in drivers. The lion's share (16) are qla2xxx and the
rest are iscsi (3), ufs (2), smarpqi, lpfc and libsas"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (24 commits)
scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
scsi: iscsi: Fix a potential deadlock in the timeout handler
scsi: smartpqi: Update attribute name to `driver_version`
scsi: libsas: stop discovering if oob mode is disconnected
scsi: ufs: Disable autohibern8 feature in Cadence UFS
scsi: iscsi: qla4xxx: fix double free in probe
scsi: ufs: Give an unique ID to each ufs-bsg
scsi: qla2xxx: Add debug dump of LOGO payload and ELS IOCB
scsi: qla2xxx: Ignore PORT UPDATE after N2N PLOGI
scsi: qla2xxx: Don't defer relogin unconditonally
scsi: qla2xxx: Send Notify ACK after N2N PLOGI
scsi: qla2xxx: Configure local loop for N2N target
scsi: qla2xxx: Fix PLOGI payload and ELS IOCB dump length
scsi: qla2xxx: Don't call qlt_async_event twice
scsi: qla2xxx: Allow PLOGI in target mode
scsi: qla2xxx: Change discovery state before PLOGI
scsi: qla2xxx: Drop superfluous INIT_WORK of del_work
scsi: qla2xxx: Initialize free_work before flushing it
scsi: qla2xxx: Use explicit LOGO in target mode
scsi: qla2xxx: Ignore NULL pointer in tcm_qla2xxx_free_mcmd
...
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Merge tag 'for-linus-20191212' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- stable fix for the bi_size overflow. Not a corruption issue, but a
case wher we could merge but disallowed (Andreas)
- NVMe pull request via Keith, with various fixes.
- MD pull request from Song.
- Merge window regression fix for the rq passthrough stats (Logan)
- Remove unused blkcg_drain_queue() function (Guoqing)
* tag 'for-linus-20191212' of git://git.kernel.dk/linux-block:
blk-cgroup: remove blkcg_drain_queue
block: fix NULL pointer dereference in account statistics with IDE
md: make sure desc_nr less than MD_SB_DISKS
md: raid1: check rdev before reference in raid1_sync_request func
raid5: need to set STRIPE_HANDLE for batch head
block: fix "check bi_size overflow before merge"
nvme/pci: Fix read queue count
nvme/pci Limit write queue sizes to possible cpus
nvme/pci: Fix write and poll queue types
nvme/pci: Remove last_cq_head
nvme: Namepace identification descriptor list is optional
nvme-fc: fix double-free scenarios on hw queues
nvme: else following return is not needed
nvme: add error message on mismatching controller ids
nvme_fc: add module to ops template to allow module references
nvmet-loop: Avoid preallocating big SGL for data
nvme-fc: Avoid preallocating big SGL for data
nvme-rdma: Avoid preallocating big SGL for data
Some time ago the block layer was modified such that timeout handlers are
called from thread context instead of interrupt context. Make it safe to
run the iSCSI timeout handler in thread context. This patch fixes the
following lockdep complaint:
================================
WARNING: inconsistent lock state
5.5.1-dbg+ #11 Not tainted
--------------------------------
inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
kworker/7:1H/206 [HC0[0]:SC0[0]:HE1:SE1] takes:
ffff88802d9827e8 (&(&session->frwd_lock)->rlock){+.?.}, at: iscsi_eh_cmd_timed_out+0xa6/0x6d0 [libiscsi]
{IN-SOFTIRQ-W} state was registered at:
lock_acquire+0x106/0x240
_raw_spin_lock+0x38/0x50
iscsi_check_transport_timeouts+0x3e/0x210 [libiscsi]
call_timer_fn+0x132/0x470
__run_timers.part.0+0x39f/0x5b0
run_timer_softirq+0x63/0xc0
__do_softirq+0x12d/0x5fd
irq_exit+0xb3/0x110
smp_apic_timer_interrupt+0x131/0x3d0
apic_timer_interrupt+0xf/0x20
default_idle+0x31/0x230
arch_cpu_idle+0x13/0x20
default_idle_call+0x53/0x60
do_idle+0x38a/0x3f0
cpu_startup_entry+0x24/0x30
start_secondary+0x222/0x290
secondary_startup_64+0xa4/0xb0
irq event stamp: 1383705
hardirqs last enabled at (1383705): [<ffffffff81aace5c>] _raw_spin_unlock_irq+0x2c/0x50
hardirqs last disabled at (1383704): [<ffffffff81aacb98>] _raw_spin_lock_irq+0x18/0x50
softirqs last enabled at (1383690): [<ffffffffa0e2efea>] iscsi_queuecommand+0x76a/0xa20 [libiscsi]
softirqs last disabled at (1383682): [<ffffffffa0e2e998>] iscsi_queuecommand+0x118/0xa20 [libiscsi]
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&(&session->frwd_lock)->rlock);
<Interrupt>
lock(&(&session->frwd_lock)->rlock);
*** DEADLOCK ***
2 locks held by kworker/7:1H/206:
#0: ffff8880d57bf928 ((wq_completion)kblockd){+.+.}, at: process_one_work+0x472/0xab0
#1: ffff88802b9c7de8 ((work_completion)(&q->timeout_work)){+.+.}, at: process_one_work+0x476/0xab0
stack backtrace:
CPU: 7 PID: 206 Comm: kworker/7:1H Not tainted 5.5.1-dbg+ #11
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Workqueue: kblockd blk_mq_timeout_work
Call Trace:
dump_stack+0xa5/0xe6
print_usage_bug.cold+0x232/0x23b
mark_lock+0x8dc/0xa70
__lock_acquire+0xcea/0x2af0
lock_acquire+0x106/0x240
_raw_spin_lock+0x38/0x50
iscsi_eh_cmd_timed_out+0xa6/0x6d0 [libiscsi]
scsi_times_out+0xf4/0x440 [scsi_mod]
scsi_timeout+0x1d/0x20 [scsi_mod]
blk_mq_check_expired+0x365/0x3a0
bt_iter+0xd6/0xf0
blk_mq_queue_tag_busy_iter+0x3de/0x650
blk_mq_timeout_work+0x1af/0x380
process_one_work+0x56d/0xab0
worker_thread+0x7a/0x5d0
kthread+0x1bc/0x210
ret_from_fork+0x24/0x30
Fixes: 287922eb0b ("block: defer timeouts to a workqueue")
Cc: Christoph Hellwig <hch@lst.de>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Lee Duncan <lduncan@suse.com>
Cc: Chris Leech <cleech@redhat.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191209173457.187370-1-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch disables autohibern8 feature in Cadence UFS. The autohibern8
feature has issues due to which unexpected interrupt trigger is happening.
After the interrupt issue is sorted out, autohibern8 feature will be
re-enabled
Link: https://lore.kernel.org/r/1575367635-22662-1-git-send-email-sheebab@cadence.com
Cc: <stable@vger.kernel.org>
Signed-off-by: sheebab <sheebab@cadence.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
On this error path we call qla4xxx_mem_free() and then the caller also
calls qla4xxx_free_adapter() which calls qla4xxx_mem_free(). It leads to a
couple double frees:
drivers/scsi/qla4xxx/ql4_os.c:8856 qla4xxx_probe_adapter() warn: 'ha->chap_dma_pool' double freed
drivers/scsi/qla4xxx/ql4_os.c:8856 qla4xxx_probe_adapter() warn: 'ha->fw_ddb_dma_pool' double freed
Fixes: afaf5a2d34 ("[SCSI] Initial Commit of qla4xxx")
Link: https://lore.kernel.org/r/20191203094421.hw7ex7qr3j2rbsmx@kili.mountain
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Considering there can be multiple UFS hosts in SoC, give each ufs-bsg an
unique ID by appending the scsi host number to its device name.
Link: https://lore.kernel.org/r/0101016eca8dc9d7-d24468d3-04d2-4ef3-a906-abe8b8cbcd3d-000000@us-west-2.amazonses.com
Fixes: df032bf27a ("scsi: ufs: Add a bsg endpoint that supports UPIUs")
Signed-off-by: Can Guo <cang@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The change adds a way to debug LOGO ELS, likewise PLOGI.
Link: https://lore.kernel.org/r/20191125165702.1013-14-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Acked-by: Quinn Tran <qutran@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
PORT UPDATE asynchronous event is generated on the host that issues PLOGI
ELS (in the case of higher WWPN). In that case, the event shouldn't be
handled as it sets unwanted DPC flags (i.e. LOOP_RESYNC_NEEDED) that
trigger link flap.
Ignore the event if the host has higher WWPN, but handle otherwise.
Cc: Quinn Tran <qutran@marvell.com>
Link: https://lore.kernel.org/r/20191125165702.1013-13-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
qla2x00_configure_local_loop sets RELOGIN_NEEDED bit and calls
qla24xx_fcport_handle_login to perform the login. This bit triggers a wake
up of DPC later after a successful login.
The deferred call is not needed if login succeeds, and it's set in
qla24xx_fcport_handle_login in case of errors, hence it should be safe to
drop.
Link: https://lore.kernel.org/r/20191125165702.1013-12-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Acked-by: Quinn Tran <qutran@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
qlt_handle_login schedules session for deletion even if a login is in
progress. That causes login bouncing, i.e. a few logins are made before it
settles down.
Complete the first login by sending Notify Acknowledge IOCB via
qlt_plogi_ack_unref if the session is pending login completion.
Fixes: 9cd883f07a ("scsi: qla2xxx: Fix session cleanup for N2N")
Cc: Krishna Kant <krishna.kant@purestorage.com>
Cc: Alexei Potashnik <alexei@purestorage.com>
Link: https://lore.kernel.org/r/20191125165702.1013-11-r.bolshakov@yadro.com
Acked-by: Quinn Tran <qutran@marvell.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
qla2x00_configure_local_loop initializes PLOGI payload for PLOGI ELS using
Get Parameters mailbox command.
In the case when the driver is running in target mode, the topology is N2N
and the target port has higher WWPN, LOCAL_LOOP_UPDATE bit is cleared too
early and PLOGI payload is not initialized by the Get Parameters
command. That causes a failure of ELS IOCB carrying the PLOGI with 0x15 aka
Data Underrun error.
LOCAL_LOOP_UPDATE has to be set to initialize PLOGI payload.
Fixes: 48acad0990 ("scsi: qla2xxx: Fix N2N link re-connect")
Link: https://lore.kernel.org/r/20191125165702.1013-10-r.bolshakov@yadro.com
Acked-by: Quinn Tran <qutran@marvell.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The size of the buffer is hardcoded as 0x70 or 112 bytes, while the size of
ELS IOCB is 0x40 and the size of PLOGI payload returned by Get Parameters
command is 0x74.
Cc: Quinn Tran <qutran@marvell.com>
Link: https://lore.kernel.org/r/20191125165702.1013-9-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
MBA_PORT_UPDATE generates duplicate log lines in target mode because
qlt_async_event is called twice. Drop the calls within the case as the
function will be called right after the switch statement.
Cc: Quinn Tran <qutran@marvell.com>
Link: https://lore.kernel.org/r/20191125165702.1013-8-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvel.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
According to FC-LS-3 (Fibre Channel Link Services) 6.3.2.4
"N_Port Login - No Fabric present", if both parties in the point-to-point
connection know N_Port_Names of each other, Nx_Port with the highest
N_Port_name shall transmit PLOGI. The specification sets no restrictions on
the port role that should send PLOGI.
However, FCP-4 (Fibre Channel Protocol for SCSI, Fourth Version) 6.2
"Overview of Process Login and Process Logout", instructs that in
point-to-point topology, initiator shall send explicit PRLI ELS.
The change fixes stuck P2P login, when target WWPN is higher than initiator
WWPN.
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <hmadhani@marvell.com>
Link: https://lore.kernel.org/r/20191125165702.1013-7-r.bolshakov@yadro.com
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When a port sends PLOGI, discovery state should be changed to login
pending, otherwise RELOGIN_NEEDED bit is set in
qla24xx_handle_plogi_done_event(). RELOGIN_NEEDED triggers another PLOGI,
and it never goes out of the loop until login timer expires.
Fixes: 8777e4314d ("scsi: qla2xxx: Migrate NVME N2N handling into state machine")
Fixes: 8b5292bcfc ("scsi: qla2xxx: Fix Relogin to prevent modifying scan_state flag")
Cc: Quinn Tran <qutran@marvell.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191125165702.1013-6-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
del_work is already initialized inside qla2x00_alloc_fcport, there's no
need to overwrite it. Indeed, it might prevent complete traversal of
workqueue list.
Fixes: a01c77d2cb ("scsi: qla2xxx: Move session delete to driver work queue")
Cc: Quinn Tran <qutran@marvell.com>
Link: https://lore.kernel.org/r/20191125165702.1013-5-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Target makes implicit LOGO on session teardown. LOGO ELS is not send on the
wire and initiator is not aware that target no longer wants talking to
it. Initiator keeps sending I/O requests, target responds with BA_RJT, they
time out and then initiator sends ABORT TASK (ABTS-LS).
Current behaviour incurs unneeded I/O timeout and can be fixed for some
initiators by making explicit LOGO on session deletion.
Link: https://lore.kernel.org/r/20191125165702.1013-3-r.bolshakov@yadro.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If ABTS cannot be completed in target mode, the driver attempts to free
related management command and crashes:
NIP [d000000019181ee8] tcm_qla2xxx_free_mcmd+0x40/0x80 [tcm_qla2xxx]
LR [d00000001dc1e6f8] qlt_response_pkt+0x190/0xa10 [qla2xxx]
Call Trace:
[c000003fff27bb50] [c000003fff27bc10] 0xc000003fff27bc10 (unreliable)
[c000003fff27bb70] [d00000001dc1e6f8] qlt_response_pkt+0x190/0xa10 [qla2xxx]
[c000003fff27bc10] [d00000001dbc2be0] qla24xx_process_response_queue+0x5d8/0xbd0 [qla2xxx]
[c000003fff27bd50] [d00000001dbc632c] qla24xx_msix_rsp_q+0x64/0x150 [qla2xxx]
[c000003fff27bde0] [c000000000187200] __handle_irq_event_percpu+0x90/0x310
[c000003fff27bea0] [c0000000001874b8] handle_irq_event_percpu+0x38/0x90
[c000003fff27bee0] [c000000000187574] handle_irq_event+0x64/0xb0
[c000003fff27bf10] [c00000000018cd38] handle_fasteoi_irq+0xe8/0x280
[c000003fff27bf40] [c000000000185ccc] generic_handle_irq+0x4c/0x70
[c000003fff27bf60] [c000000000016cec] __do_irq+0x7c/0x1d0
[c000003fff27bf90] [c00000000002a530] call_do_irq+0x14/0x24
[c00000207d2cba90] [c000000000016edc] do_IRQ+0x9c/0x130
[c00000207d2cbae0] [c000000000008bf4] hardware_interrupt_common+0x114/0x120
--- interrupt: 501 at arch_local_irq_restore+0x74/0x90
LR = arch_local_irq_restore+0x74/0x90
[c00000207d2cbdd0] [c0000000001c64fc] tick_broadcast_oneshot_control+0x4c/0x60 (unreliable)
[c00000207d2cbdf0] [c0000000007ac840] cpuidle_enter_state+0xf0/0x450
[c00000207d2cbe50] [c00000000016b81c] call_cpuidle+0x4c/0x90
[c00000207d2cbe70] [c00000000016bc30] do_idle+0x2b0/0x330
[c00000207d2cbec0] [c00000000016beec] cpu_startup_entry+0x3c/0x50
[c00000207d2cbef0] [c00000000004a06c] start_secondary+0x63c/0x670
[c00000207d2cbf90] [c00000000000aa6c] start_secondary_prolog+0x10/0x14
The crash can be triggered by ACL deletion when there's active I/O.
During ACL deletion, qla2xxx performs implicit LOGO that's invisible for
the initiator. Only the driver and firmware are aware of the logout.
Therefore the initiator continues to send SCSI commands and the target
always responds with SAM STATUS BUSY as it can't find the session.
The command times out after a while and initiator invokes ABORT TASK TMF
for the command. The TMF is mapped to ABTS-LS in FCP. The target can't find
session for S_ID originating ABTS-LS so it never allocates mcmd. And since
N_Port handle was deleted after LOGO, it is no longer valid and ABTS
Response IOCB is returned from firmware with status 31. Then free_mcmd is
invoked on NULL pointer and the kernel crashes.
[ 7734.578642] qla2xxx [0000:00:0c.0]-e837:6: ABTS_RECV_24XX: instance 0
[ 7734.578644] qla2xxx [0000:00:0c.0]-f811:6: qla_target(0): task abort (s_id=1:2:0, tag=1209504, param=0)
[ 7734.578645] find_sess_by_s_id: 0x010200
[ 7734.578645] Unable to locate s_id: 0x010200
[ 7734.578646] qla2xxx [0000:00:0c.0]-f812:6: qla_target(0): task abort for non-existent session
[ 7734.578648] qla2xxx [0000:00:0c.0]-e806:6: Sending task mgmt ABTS response (ha=c0000000d5819000, atio=c0000000d3fd4700, status=4
[ 7734.578730] qla2xxx [0000:00:0c.0]-e838:6: ABTS_RESP_24XX: compl_status 31
[ 7734.578732] qla2xxx [0000:00:0c.0]-e863:6: qla_target(0): ABTS_RESP_24XX failed 31 (subcode 19:a)
[ 7734.578740] Unable to handle kernel paging request for data at address 0x00000200
Fixes: 6b0431d6fa ("scsi: qla2xxx: Fix out of order Termination and ABTS response")
Cc: Quinn Tran <qutran@marvell.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Thomas Abraham <tabraham@suse.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191125165702.1013-2-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When phba->mbox_ext_buf_ctx.seqNum != phba->mbox_ext_buf_ctx.numBuf,
dd_data should be freed before return SLI_CONFIG_HANDLED.
When lpfc_sli_issue_mbox func return fails, pmboxq should be also freed in
job_error tag.
Link: https://lore.kernel.org/r/EDBAAA0BBBA2AC4E9C8B6B81DEEE1D6915E7A966@DGGEML525-MBS.china.huawei.com
Signed-off-by: Bo Wu <wubo40@huawei.com>
Reviewed-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
SFUB length should be in DWORDs when passed to FW.
Fixes: 3f006ac342 ("scsi: qla2xxx: Secure flash update support for ISP28XX")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191203223657.22109-4-hmadhani@marvell.com
Signed-off-by: Michael Hernandez <mhernandez@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch adds support for MPI/PEP region updates which is required with
secure flash updates for ISP28XX.
Fixes: 3f006ac342 ("scsi: qla2xxx: Secure flash update support for ISP28XX")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191203223657.22109-3-hmadhani@marvell.com
Signed-off-by: Michael Hernandez <mhernandez@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Replace all the occurrences of FIELD_SIZEOF() with sizeof_field() except
at places where these are defined. Later patches will remove the unused
definition of FIELD_SIZEOF().
This patch is generated using following script:
EXCLUDE_FILES="include/linux/stddef.h|include/linux/kernel.h"
git grep -l -e "\bFIELD_SIZEOF\b" | while read file;
do
if [[ "$file" =~ $EXCLUDE_FILES ]]; then
continue
fi
sed -i -e 's/\bFIELD_SIZEOF\b/sizeof_field/g' $file;
done
Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Link: https://lore.kernel.org/r/20190924105839.110713-3-pankaj.laxminarayan.bharadiya@intel.com
Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: David Miller <davem@davemloft.net> # for net
11 patches, all in drivers (no core changes) that are either minor
cleanups or small fixes. They were late arriving, but still safe for
-rc1.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"Eleven patches, all in drivers (no core changes) that are either minor
cleanups or small fixes.
They were late arriving, but still safe for -rc1"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: MAINTAINERS: Add the linux-scsi mailing list to the ISCSI entry
scsi: megaraid_sas: Make poll_aen_lock static
scsi: sd_zbc: Improve report zones error printout
scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI
scsi: qla2xxx: unregister ports after GPN_FT failure
scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan
scsi: pm80xx: Remove unused include of linux/version.h
scsi: pm80xx: fix logic to break out of loop when register value is 2 or 3
scsi: scsi_transport_sas: Fix memory leak when removing devices
scsi: lpfc: size cpu map by last cpu id set
scsi: ibmvscsi_tgt: Remove unneeded variable rc
Pull NVMe fixes from Keith
* 'nvme/for-5.5' of git://git.infradead.org/nvme:
nvme/pci: Fix read queue count
nvme/pci Limit write queue sizes to possible cpus
nvme/pci: Fix write and poll queue types
nvme/pci: Remove last_cq_head
nvme: Namepace identification descriptor list is optional
nvme-fc: fix double-free scenarios on hw queues
nvme: else following return is not needed
nvme: add error message on mismatching controller ids
nvme_fc: add module to ops template to allow module references
nvmet-loop: Avoid preallocating big SGL for data
nvme-fc: Avoid preallocating big SGL for data
nvme-rdma: Avoid preallocating big SGL for data
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Merge tag 'for-linus-20191205' of git://git.kernel.dk/linux-block
Pull more block and io_uring updates from Jens Axboe:
"I wasn't expecting this to be so big, and if I was, I would have used
separate branches for this. Going forward I'll be doing separate
branches for the current tree, just like for the next kernel version
tree. In any case, this contains:
- Series from Christoph that fixes an inherent race condition with
zoned devices and revalidation.
- null_blk zone size fix (Damien)
- Fix for a regression in this merge window that caused busy spins by
sending empty disk uevents (Eric)
- Fix for a regression in this merge window for bfq stats (Hou)
- Fix for io_uring creds allocation failure handling (me)
- io_uring -ERESTARTSYS send/recvmsg fix (me)
- Series that fixes the need for applications to retain state across
async request punts for io_uring. This one is a bit larger than I
would have hoped, but I think it's important we get this fixed for
5.5.
- connect(2) improvement for io_uring, handling EINPROGRESS instead
of having applications needing to poll for it (me)
- Have io_uring use a hash for poll requests instead of an rbtree.
This turned out to work much better in practice, so I think we
should make the switch now. For some workloads, even with a fair
amount of cancellations, the insertion sort is just too expensive.
(me)
- Various little io_uring fixes (me, Jackie, Pavel, LimingWu)
- Fix for brd unaligned IO, and a warning for the future (Ming)
- Fix for a bio integrity data leak (Justin)
- bvec_iter_advance() improvement (Pavel)
- Xen blkback page unmap fix (SeongJae)
The major items in here are all well tested, and on the liburing side
we continue to add regression and feature test cases. We're up to 50
topic cases now, each with anywhere from 1 to more than 10 cases in
each"
* tag 'for-linus-20191205' of git://git.kernel.dk/linux-block: (33 commits)
block: fix memleak of bio integrity data
io_uring: fix a typo in a comment
bfq-iosched: Ensure bio->bi_blkg is valid before using it
io_uring: hook all linked requests via link_list
io_uring: fix error handling in io_queue_link_head
io_uring: use hash table for poll command lookups
io-wq: clear node->next on list deletion
io_uring: ensure deferred timeouts copy necessary data
io_uring: allow IO_SQE_* flags on IORING_OP_TIMEOUT
null_blk: remove unused variable warning on !CONFIG_BLK_DEV_ZONED
brd: warn on un-aligned buffer
brd: remove max_hw_sectors queue limit
xen/blkback: Avoid unmapping unmapped grant pages
io_uring: handle connect -EINPROGRESS like -EAGAIN
block: set the zone size in blk_revalidate_disk_zones atomically
block: don't handle bio based drivers in blk_revalidate_disk_zones
block: allocate the zone bitmaps lazily
block: replace seq_zones_bitmap with conv_zones_bitmap
block: simplify blkdev_nr_zones
block: remove the empty line at the end of blk-zoned.c
...
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Merge tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Warn if a host bridge has no NUMA info (Yunsheng Lin)
- Add PCI_STD_NUM_BARS for the number of standard BARs (Denis
Efremov)
Resource management:
- Fix boot-time Embedded Controller GPE storm caused by incorrect
resource assignment after ACPI Bus Check Notification (Mika
Westerberg)
- Protect pci_reassign_bridge_resources() against concurrent
addition/removal (Benjamin Herrenschmidt)
- Fix bridge dma_ranges resource list cleanup (Rob Herring)
- Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control
the MMIO and prefetchable MMIO window sizes of hotplug bridges
independently (Nicholas Johnson)
- Fix MMIO/MMIO_PREF window assignment that assigned more space than
desired (Nicholas Johnson)
- Only enforce bus numbers from bridge EA if the bridge has EA
devices downstream (Subbaraya Sundeep)
- Consolidate DT "dma-ranges" parsing and convert all host drivers to
use shared parsing (Rob Herring)
Error reporting:
- Restore AER capability after resume (Mayurkumar Patel)
- Add PoisonTLPBlocked AER counter (Rajat Jain)
- Use for_each_set_bit() to simplify AER code (Andy Shevchenko)
- Fix AER kernel-doc (Andy Shevchenko)
- Add "pcie_ports=dpc-native" parameter to allow native use of DPC
even if platform didn't grant control over AER (Olof Johansson)
Hotplug:
- Avoid returning prematurely from sysfs requests to enable or
disable a PCIe hotplug slot (Lukas Wunner)
- Don't disable interrupts twice when suspending hotplug ports (Mika
Westerberg)
- Fix deadlocks when PCIe ports are hot-removed while suspended (Mika
Westerberg)
Power management:
- Remove unnecessary ASPM locking (Bjorn Helgaas)
- Add support for disabling L1 PM Substates (Heiner Kallweit)
- Allow re-enabling Clock PM after it has been disabled (Heiner
Kallweit)
- Add sysfs attributes for controlling ASPM link states (Heiner
Kallweit)
- Remove CONFIG_PCIEASPM_DEBUG, including "link_state" and "clk_ctl"
sysfs files (Heiner Kallweit)
- Avoid AMD FCH XHCI USB PME# from D0 defect that prevents wakeup on
USB 2.0 or 1.1 connect events (Kai-Heng Feng)
- Move power state check out of pci_msi_supported() (Bjorn Helgaas)
- Fix incorrect MSI-X masking on resume and revert related nvme quirk
for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan)
- Always return devices to D0 when thawing to fix hibernation with
drivers like mlx4 that used legacy power management (previously we
only did it for drivers with new power management ops) (Dexuan Cui)
- Clear PCIe PME Status even for legacy power management (Bjorn
Helgaas)
- Fix PCI PM documentation errors (Bjorn Helgaas)
- Use dev_printk() for more power management messages (Bjorn Helgaas)
- Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas)
- Convert xen-platform from legacy to generic power management (Bjorn
Helgaas)
- Removed unused .resume_early() and .suspend_late() legacy power
management hooks (Bjorn Helgaas)
- Rearrange power management code for clarity (Rafael J. Wysocki)
- Decode power states more clearly ("4" or "D4" really refers to
"D3cold") (Bjorn Helgaas)
- Notice when reading PM Control register returns an error (~0)
instead of interpreting it as being in D3hot (Bjorn Helgaas)
- Add missing link delays required by the PCIe spec (Mika Westerberg)
Virtualization:
- Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn
Helgaas)
- Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code
previously didn't recognize that) (Kuppuswamy Sathyanarayanan)
- Allow VFs to use PASID (the PF PASID capability is shared by the
VFs, but the code previously didn't recognize that) (Kuppuswamy
Sathyanarayanan)
- Disconnect PF and VF ATS enablement, since ATS in PFs and
associated VFs can be enabled independently (Kuppuswamy
Sathyanarayanan)
- Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan)
- Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas)
- Consolidate ATS declarations in linux/pci-ats.h (Krzysztof
Wilczynski)
- Remove unused PRI and PASID stubs (Bjorn Helgaas)
- Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID
interfaces that are only used by built-in IOMMU drivers (Bjorn
Helgaas)
- Hide PRI and PASID state restoration functions used only inside the
PCI core (Bjorn Helgaas)
- Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski)
- Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut)
- Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George
Cherian)
- Fix the UPDCR register address in the Intel ACS quirk (Steffen
Liebergeld)
- Unify ACS quirk implementations (Bjorn Helgaas)
Amlogic Meson host bridge driver:
- Fix meson PERST# GPIO polarity problem (Remi Pommarel)
- Add DT bindings for Amlogic Meson G12A (Neil Armstrong)
- Fix meson clock names to match DT bindings (Neil Armstrong)
- Add meson support for Amlogic G12A SoC with separate shared PHY
(Neil Armstrong)
- Add meson extended PCIe PHY functions for Amlogic G12A USB3+PCIe
combo PHY (Neil Armstrong)
- Add arm64 DT for Amlogic G12A PCIe controller node (Neil Armstrong)
- Add commented-out description of VIM3 USB3/PCIe mux in arm64 DT
(Neil Armstrong)
Broadcom iProc host bridge driver:
- Invalidate iProc PAXB address mapping before programming it
(Abhishek Shah)
- Fix iproc-msi and mvebu __iomem annotations (Ben Dooks)
Cadence host bridge driver:
- Refactor Cadence PCIe host controller to use as a library for both
host and endpoint (Tom Joseph)
Freescale Layerscape host bridge driver:
- Add layerscape LS1028a support (Xiaowei Bao)
Intel VMD host bridge driver:
- Add VMD bus 224-255 restriction decode (Jon Derrick)
- Add VMD 8086:9A0B device ID (Jon Derrick)
- Remove Keith from VMD maintainer list (Keith Busch)
Marvell ARMADA 3700 / Aardvark host bridge driver:
- Use LTSSM state to build link training flag since Aardvark doesn't
implement the Link Training bit (Remi Pommarel)
- Delay before training Aardvark link in case PERST# was asserted
before the driver probe (Remi Pommarel)
- Fix Aardvark issues with Root Control reads and writes (Remi
Pommarel)
- Don't rely on jiffies in Aardvark config access path since
interrupts may be disabled (Remi Pommarel)
- Fix Aardvark big-endian support (Grzegorz Jaszczyk)
Marvell ARMADA 370 / XP host bridge driver:
- Make mvebu_pci_bridge_emul_ops static (Ben Dooks)
Microsoft Hyper-V host bridge driver:
- Add hibernation support for Hyper-V virtual PCI devices (Dexuan
Cui)
- Track Hyper-V pci_protocol_version per-hbus, not globally (Dexuan
Cui)
- Avoid kmemleak false positive on hv hbus buffer (Dexuan Cui)
Mobiveil host bridge driver:
- Change mobiveil csr_read()/write() function names that conflict
with riscv arch functions (Kefeng Wang)
NVIDIA Tegra host bridge driver:
- Fix Tegra CLKREQ dependency programming (Vidya Sagar)
Renesas R-Car host bridge driver:
- Remove unnecessary header include from rcar (Andrew Murray)
- Tighten register index checking for rcar inbound range programming
(Marek Vasut)
- Fix rcar inbound range alignment calculation to improve packing of
multiple entries (Marek Vasut)
- Update rcar MACCTLR setting to match documentation (Yoshihiro
Shimoda)
- Clear bit 0 of MACCTLR before PCIETCTLR.CFINIT per manual
(Yoshihiro Shimoda)
- Add Marek Vasut and Yoshihiro Shimoda as R-Car maintainers (Simon
Horman)
Rockchip host bridge driver:
- Make rockchip 0V9 and 1V8 power regulators non-optional (Robin
Murphy)
Socionext UniPhier host bridge driver:
- Set uniphier to host (RC) mode always (Kunihiko Hayashi)
Endpoint drivers:
- Fix endpoint driver sign extension problem when shifting page
number to phys_addr_t (Alan Mikhak)
Misc:
- Add NumaChip SPDX header (Krzysztof Wilczynski)
- Replace EXTRA_CFLAGS with ccflags-y (Krzysztof Wilczynski)
- Remove unused includes (Krzysztof Wilczynski)
- Removed unused sysfs attribute groups (Ben Dooks)
- Remove PTM and ASPM dependencies on PCIEPORTBUS (Bjorn Helgaas)
- Add PCIe Link Control 2 register field definitions to replace magic
numbers in AMDGPU and Radeon CIK/SI (Bjorn Helgaas)
- Fix incorrect Link Control 2 Transmit Margin usage in AMDGPU and
Radeon CIK/SI PCIe Gen3 link training (Bjorn Helgaas)
- Use pcie_capability_read_word() instead of pci_read_config_word()
in AMDGPU and Radeon CIK/SI (Frederick Lawler)
- Remove unused pci_irq_get_node() Greg Kroah-Hartman)
- Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig
(Palmer Dabbelt, Michal Simek)
- Read all 64 bits of Switchtec part_event_bitmap (Logan Gunthorpe)
- Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn
Helgaas)
- Fix bridge emulation big-endian support (Grzegorz Jaszczyk)
- Fix dwc find_next_bit() usage (Niklas Cassel)
- Fix pcitest.c fd leak (Hewenliang)
- Fix typos and comments (Bjorn Helgaas)
- Fix Kconfig whitespace errors (Krzysztof Kozlowski)"
* tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (160 commits)
PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist
asm-generic: Make msi.h a mandatory include/asm header
Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T"
PCI/MSI: Fix incorrect MSI-X masking on resume
PCI/MSI: Move power state check out of pci_msi_supported()
PCI/MSI: Remove unused pci_irq_get_node()
PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer
PCI: hv: Change pci_protocol_version to per-hbus
PCI: hv: Add hibernation support
PCI: hv: Reorganize the code in preparation of hibernation
MAINTAINERS: Remove Keith from VMD maintainer
PCI/ASPM: Remove PCIEASPM_DEBUG Kconfig option and related code
PCI/ASPM: Add sysfs attributes for controlling ASPM link states
PCI: Fix indentation
drm/radeon: Prefer pcie_capability_read_word()
drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions
drm/radeon: Correct Transmit Margin masks
drm/amdgpu: Prefer pcie_capability_read_word()
PCI: uniphier: Set mode register to host mode
drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions
...
The current zone revalidation code has a major problem in that it
doesn't update the zone size and q->nr_zones atomically, leading
to a short window where an out of bounds access to the zone arrays
is possible.
To fix this move the setting of the zone size into the crticial
sections blk_revalidate_disk_zones so that it gets updated together
with the zone bitmaps and q->nr_zones. This also slightly simplifies
the caller as it deducts the zone size from the report_zones.
This change also allows to check for a power of two zone size in generic
code.
Reported-by: Hans Holmberg <hans@owltronix.com>
Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This is mostly update of the usual drivers: aacraid, ufs, zfcp,
NCR5380, lpfc, qla2xxx, smartpqi, hisi_sas, target, mpt3sas, pm80xx
plus a whole load of minor updates and fixes. The two major core
changes are Al Viro's reworking of sg's handling of copy to/from user,
Ming Lei's removal of the host busy counter to avoid contention in the
multiqueue case and Damien Le Moal's fixing of residual tracking
across error handling.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: aacraid, ufs, zfcp,
NCR5380, lpfc, qla2xxx, smartpqi, hisi_sas, target, mpt3sas, pm80xx
plus a whole load of minor updates and fixes.
The major core changes are Al Viro's reworking of sg's handling of
copy to/from user, Ming Lei's removal of the host busy counter to
avoid contention in the multiqueue case and Damien Le Moal's fixing of
residual tracking across error handling"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (251 commits)
scsi: bnx2fc: timeout calculation invalid for bnx2fc_eh_abort()
scsi: target: core: Fix a pr_debug() argument
scsi: iscsi: Don't send data to unbound connection
scsi: target: iscsi: Wait for all commands to finish before freeing a session
scsi: target: core: Release SPC-2 reservations when closing a session
scsi: target: core: Document target_cmd_size_check()
scsi: bnx2i: fix potential use after free
Revert "scsi: qla2xxx: Fix memory leak when sending I/O fails"
scsi: NCR5380: Add disconnect_mask module parameter
scsi: NCR5380: Unconditionally clear ICR after do_abort()
scsi: NCR5380: Call scsi_set_resid() on command completion
scsi: scsi_debug: num_tgts must be >= 0
scsi: lpfc: use hdwq assigned cpu for allocation
scsi: arcmsr: fix indentation issues
scsi: qla4xxx: fix double free bug
scsi: pm80xx: Modified the logic to collect fatal dump
scsi: pm80xx: Tie the interrupt name to the module instance
scsi: pm80xx: Controller fatal error through sysfs
scsi: pm80xx: Do not request 12G sas speeds
scsi: pm80xx: Cleanup command when a reset times out
...
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Merge tag 'for-linus-20191129' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"I wasn't going to send this one off so soon, but unfortunately one of
the fixes from the previous pull broke the build on some archs. So I'm
sending this sooner rather than later. This contains:
- Add highmem.h include for io_uring, because of the kmap() additions
from last round. For some reason the build bot didn't spot this
even though it sat for days.
- Three minor ';' removals
- Add support for the Beurer CD-on-a-chip device
- Make io_uring work on MMU-less archs"
* tag 'for-linus-20191129' of git://git.kernel.dk/linux-block:
io_uring: fix missing kmap() declaration on powerpc
ataflop: Remove unneeded semicolon
block: sunvdc: Remove unneeded semicolon
drbd: Remove unneeded semicolon
io_uring: add mapping support for NOMMU archs
sr_vendor: support Beurer GL50 evo CD-on-a-chip devices.
cdrom: respect device capabilities during opening action
As part of the cleanup of some remaining y2038 issues, I came to
fs/compat_ioctl.c, which still has a couple of commands that need support
for time64_t.
In completely unrelated work, I spent time on cleaning up parts of this
file in the past, moving things out into drivers instead.
After Al Viro reviewed an earlier version of this series and did a lot
more of that cleanup, I decided to try to completely eliminate the rest
of it and move it all into drivers.
This series incorporates some of Al's work and many patches of my own,
but in the end stops short of actually removing the last part, which is
the scsi ioctl handlers. I have patches for those as well, but they need
more testing or possibly a rewrite.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground
Pull removal of most of fs/compat_ioctl.c from Arnd Bergmann:
"As part of the cleanup of some remaining y2038 issues, I came to
fs/compat_ioctl.c, which still has a couple of commands that need
support for time64_t.
In completely unrelated work, I spent time on cleaning up parts of
this file in the past, moving things out into drivers instead.
After Al Viro reviewed an earlier version of this series and did a lot
more of that cleanup, I decided to try to completely eliminate the
rest of it and move it all into drivers.
This series incorporates some of Al's work and many patches of my own,
but in the end stops short of actually removing the last part, which
is the scsi ioctl handlers. I have patches for those as well, but they
need more testing or possibly a rewrite"
* tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (42 commits)
scsi: sd: enable compat ioctls for sed-opal
pktcdvd: add compat_ioctl handler
compat_ioctl: move SG_GET_REQUEST_TABLE handling
compat_ioctl: ppp: move simple commands into ppp_generic.c
compat_ioctl: handle PPPIOCGIDLE for 64-bit time_t
compat_ioctl: move PPPIOCSCOMPRESS to ppp_generic
compat_ioctl: unify copy-in of ppp filters
tty: handle compat PPP ioctls
compat_ioctl: move SIOCOUTQ out of compat_ioctl.c
compat_ioctl: handle SIOCOUTQNSD
af_unix: add compat_ioctl support
compat_ioctl: reimplement SG_IO handling
compat_ioctl: move WDIOC handling into wdt drivers
fs: compat_ioctl: move FITRIM emulation into file systems
gfs2: add compat_ioctl support
compat_ioctl: remove unused convert_in_user macro
compat_ioctl: remove last RAID handling code
compat_ioctl: remove /dev/raw ioctl translation
compat_ioctl: remove PCI ioctl translation
compat_ioctl: remove joystick ioctl translation
...
- Hibernation support (Dexuan Cui).
- Latency testing framework (Branden Bonaby).
- Decoupling Hyper-V page size from guest page size (Himadri Pandya).
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Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull Hyper-V updates from Sasha Levin:
- support for new VMBus protocols (Andrea Parri)
- hibernation support (Dexuan Cui)
- latency testing framework (Branden Bonaby)
- decoupling Hyper-V page size from guest page size (Himadri Pandya)
* tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (22 commits)
Drivers: hv: vmbus: Fix crash handler reset of Hyper-V synic
drivers/hv: Replace binary semaphore with mutex
drivers: iommu: hyperv: Make HYPERV_IOMMU only available on x86
HID: hyperv: Add the support of hibernation
hv_balloon: Add the support of hibernation
x86/hyperv: Implement hv_is_hibernation_supported()
Drivers: hv: balloon: Remove dependencies on guest page size
Drivers: hv: vmbus: Remove dependencies on guest page size
x86: hv: Add function to allocate zeroed page for Hyper-V
Drivers: hv: util: Specify ring buffer size using Hyper-V page size
Drivers: hv: Specify receive buffer size using Hyper-V page size
tools: hv: add vmbus testing tool
drivers: hv: vmbus: Introduce latency testing
video: hyperv: hyperv_fb: Support deferred IO for Hyper-V frame buffer driver
video: hyperv: hyperv_fb: Obtain screen resolution from Hyper-V host
hv_netvsc: Add the support of hibernation
hv_sock: Add the support of hibernation
video: hyperv_fb: Add the support of hibernation
scsi: storvsc: Add the support of hibernation
Drivers: hv: vmbus: Add module parameter to cap the VMBus version
...
- Protect pci_reassign_bridge_resources() against concurrent
addition/removal (Benjamin Herrenschmidt)
- Fix bridge dma_ranges resource list cleanup (Rob Herring)
- Add PCI_STD_NUM_BARS for the number of standard BARs (Denis Efremov)
- Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control the
MMIO and prefetchable MMIO window sizes of hotplug bridges
independently (Nicholas Johnson)
- Fix MMIO/MMIO_PREF window assignment that assigned more space than
desired (Nicholas Johnson)
- Only enforce bus numbers from bridge EA if the bridge has EA devices
downstream (Subbaraya Sundeep)
* pci/resource:
PCI: Do not use bus number zero from EA capability
PCI: Avoid double hpmemsize MMIO window assignment
PCI: Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters
PCI: Add PCI_STD_NUM_BARS for the number of standard BARs
PCI: Fix missing bridge dma_ranges resource list cleanup
PCI: Protect pci_reassign_bridge_resources() against concurrent addition/removal
Fix sparse warning:
drivers/scsi/megaraid/megaraid_sas_base.c:187:12:
warning: symbol 'poll_aen_lock' was not declared. Should it be static?
Link: https://lore.kernel.org/r/20191125144454.22680-1-yuehaibing@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In the case of a report zones command failure, instead of simply printing
the host_byte and driver_byte values returned, print a message that is more
human readable and useful, adding sense codes too.
To do so, use the already defined sd_print_sense_hdr() and
sd_print_result() functions by moving the declaration of these functions
into sd.h.
Link: https://lore.kernel.org/r/20191125070518.951717-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit 4fa1834559 ("scsi: qla2xxx: Utilize pci_alloc_irq_vectors/
pci_free_irq_vectors calls.") use pci_alloc_irq_vectors() to replace
pci_enable_msi() but it didn't handle the return value correctly. This bug
make qla2x00 always fail to setup MSI if MSI-X fail, so fix it.
BTW, improve the log message of return value in qla2x00_request_irqs() to
avoid confusion.
Fixes: 4fa1834559 ("scsi: qla2xxx: Utilize pci_alloc_irq_vectors/pci_free_irq_vectors calls.")
Cc: Michael Hernandez <michael.hernandez@cavium.com>
Link: https://lore.kernel.org/r/1574314847-14280-1-git-send-email-chenhc@lemote.com
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When ports are lost due to unzoning them, and the initiator port is
not part of any more zones, the GPN_FT command used for the fabric
scan may fail. In this case, the current code simply gives up after a
few retries. But if the zone is gone, all rports should actually be
marked as lost.
Fix this by jumping to the code that handles logout after GNN_FT after
scan retries are exhausted.
Fixes: f352eeb754 ("scsi: qla2xxx: Add ability to use GPNFT/GNNFT for RSCN handling")
Link: https://lore.kernel.org/r/20191122221912.20100-3-martin.wilck@suse.com
Tested-by: Jason Orendorf <orendorf@hpe.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In qla2x00_find_all_fabric_devs(), fcport->flags & FCF_LOGIN_NEEDED is a
necessary condition for logging into new rports, but not for dropping lost
ones.
Fixes: 726b854870 ("qla2xxx: Add framework for async fabric discovery")
Link: https://lore.kernel.org/r/20191122221912.20100-2-martin.wilck@suse.com
Tested-by: David Bond <dbond@suse.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Remove #include <linux/version.h>. Don't need it.
Link: https://lore.kernel.org/r/20191122020911.33269-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The condition (reg_val != 2) || (reg_val != 3) will always be true because
reg_val cannot be equal to two different values at the same time. Fix this
by replacing the || operator with && so that the loop will loop if reg_val
is not a 2 and not a 3 as was originally intended.
Fixes: 50dc2f221455 ("scsi: pm80xx: Modified the logic to collect fatal dump")
Link: https://lore.kernel.org/r/20191120135031.270708-1-colin.king@canonical.com
Addresses-Coverity: ("Constant expression result")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pull RCU updates from Ingo Molnar:
"The main changes in this cycle were:
- Dynamic tick (nohz) updates, perhaps most notably changes to force
the tick on when needed due to lengthy in-kernel execution on CPUs
on which RCU is waiting.
- Linux-kernel memory consistency model updates.
- Replace rcu_swap_protected() with rcu_prepace_pointer().
- Torture-test updates.
- Documentation updates.
- Miscellaneous fixes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer()
net/sched: Replace rcu_swap_protected() with rcu_replace_pointer()
net/netfilter: Replace rcu_swap_protected() with rcu_replace_pointer()
net/core: Replace rcu_swap_protected() with rcu_replace_pointer()
bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer()
fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer()
drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer()
drm/i915: Replace rcu_swap_protected() with rcu_replace_pointer()
x86/kvm/pmu: Replace rcu_swap_protected() with rcu_replace_pointer()
rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer()
rcu: Suppress levelspread uninitialized messages
rcu: Fix uninitialized variable in nocb_gp_wait()
rcu: Update descriptions for rcu_future_grace_period tracepoint
rcu: Update descriptions for rcu_nocb_wake tracepoint
rcu: Remove obsolete descriptions for rcu_barrier tracepoint
rcu: Ensure that ->rcu_urgent_qs is set before resched IPI
workqueue: Convert for_each_wq to use built-in list check
rcu: Several rcu_segcblist functions can be static
rcu: Remove unused function hlist_bl_del_init_rcu()
Documentation: Rename rcu_node_context_switch() to rcu_note_context_switch()
...
The Beurer GL50 evo uses a Cygnal-manufactured CD-on-a-chip that only
accepts a subset of SCSI commands, and supports neither audio commands
nor generic packet commands.
Actually sending those commands bring the device to an unrecoverable
state that causes the device to hang and reset.
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In nvme-fc: it's possible to have connected active controllers
and as no references are taken on the LLDD, the LLDD can be
unloaded. The controller would enter a reconnect state and as
long as the LLDD resumed within the reconnect timeout, the
controller would resume. But if a namespace on the controller
is the root device, allowing the driver to unload can be problematic.
To reload the driver, it may require new io to the boot device,
and as it's no longer connected we get into a catch-22 that
eventually fails, and the system locks up.
Fix this issue by taking a module reference for every connected
controller (which is what the core layer did to the transport
module). Reference is cleared when the controller is removed.
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
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Merge tag 'printk-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:
- Allow to print symbolic error names via new %pe modifier.
- Use pr_warn() instead of the remaining pr_warning() calls. Fix
formatting of the related lines.
- Add VSPRINTF entry to MAINTAINERS.
* tag 'printk-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: (32 commits)
checkpatch: don't warn about new vsprintf pointer extension '%pe'
MAINTAINERS: Add VSPRINTF
tools lib api: Renaming pr_warning to pr_warn
ASoC: samsung: Use pr_warn instead of pr_warning
lib: cpu_rmap: Use pr_warn instead of pr_warning
trace: Use pr_warn instead of pr_warning
dma-debug: Use pr_warn instead of pr_warning
vgacon: Use pr_warn instead of pr_warning
fs: afs: Use pr_warn instead of pr_warning
sh/intc: Use pr_warn instead of pr_warning
scsi: Use pr_warn instead of pr_warning
platform/x86: intel_oaktrail: Use pr_warn instead of pr_warning
platform/x86: asus-laptop: Use pr_warn instead of pr_warning
platform/x86: eeepc-laptop: Use pr_warn instead of pr_warning
oprofile: Use pr_warn instead of pr_warning
of: Use pr_warn instead of pr_warning
macintosh: Use pr_warn instead of pr_warning
idsn: Use pr_warn instead of pr_warning
ide: Use pr_warn instead of pr_warning
crypto: n2: Use pr_warn instead of pr_warning
...
Currently the lpfc driver sizes its cpu_map array based on
num_possible_cpus(). However, that can be a value that is less than the
highest cpu id bit that is set. As such, if a thread runs on a cpu with a
larger cpu id, or for_each_possible_cpu() is used, the driver could index
off the end of the array and return garbage or GPF.
The driver maintains its own internal copy of the "num_possible" cpu value
and sizes arrays by it.
Fix by setting the driver's value to the value of the last cpu id bit set
in the possible_mask - plus 1. Thus cpu_map will be sized to allow access
by any cpu id possible.
Link: https://lore.kernel.org/r/20191121175556.18953-1-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Variable rc is not modified in ibmvscsis_srp_i_logout function. So remove
unneeded variable rc.
Issue found using coccicheck tool.
Link: https://lore.kernel.org/r/20191101120407.GA9369@saurav
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Reviewed-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When we're in storvsc_suspend(), we're sure the SCSI layer has quiesced the
scsi device by scsi_bus_suspend() -> ... -> scsi_device_quiesce(), so the
low level SCSI adapter driver only needs to suspend/resume its own state.
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
In the bnx2fc_eh_abort() function there is a calculation for
wait_for_completion that uses a HZ multiplier. This is incorrect, it
scales the timeout by 1000 seconds instead of converting the ms value to
jiffies. Therefore change the calculation.
Link: https://lore.kernel.org/r/1574178394-16635-1-git-send-email-loberman@redhat.com
Reported-by: David Jeffery <djeffery@redhat.com>
Reviewed-by: John Pittman <jpittman@redhat.com>
Reviewed-by: Chad Dupuis <cdupuis1@gmail.com>
Signed-off-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The member hba->pcidev may be used after its reference is dropped. Move the
put function to where it is never used to avoid potential use after free
issues.
Fixes: a771718065 ("[SCSI] bnx2i: Removed the reference to the netdev->base_addr")
Link: https://lore.kernel.org/r/1573043541-19126-1-git-send-email-bianpan2016@163.com
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This reverts commit 2f856d4e8c.
This patch was found to introduce a double free regression. The issue
it originally attempted to address was fixed in patch
f45bca8c50 ("scsi: qla2xxx: Fix double scsi_done for abort path").
Link: https://lore.kernel.org/r/4BDE2B95-835F-43BE-A32C-2629D7E03E0A@marvell.com
Requested-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add a module parameter to inhibit disconnect/reselect for individual
targets. This gains compatibility with Aztec PowerMonster SCSI/SATA
adapters with buggy firmware. (No fix is available from the vendor.)
Apparently these adapters pass-through the product/vendor of the attached
SATA device. Since they can't be identified from the response to an INQUIRY
command, a device blacklist flag won't work.
Cc: Michael Schmitz <schmitzmic@gmail.com>
Link: https://lore.kernel.org/r/993b17545990f31f9fa5a98202b51102a68e7594.1573875417.git.fthain@telegraphics.com.au
Reviewed-and-tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When do_abort() succeeds, the target will go to BUS FREE phase and there
will be no connected command. Therefore, that function should clear the
Initiator Command Register before returning. It already does so in case of
NCR5380_poll_politely() failure; do the same for the other error case too,
that is, NCR5380_transfer_pio() failure.
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Ondrej Zary <linux@zary.sk>
Link: https://lore.kernel.org/r/4277b28ee2551f884aefa85965ef3c498344f301.1573875417.git.fthain@telegraphics.com.au
Reviewed-and-tested-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Ondrej Zary <linux@zary.sk>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Most NCR5380 drivers calculate the residual for every data transfer.
(A few drivers just set it to zero.) Pass this quantity back to the scsi
mid-layer on command completion.
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Ondrej Zary <linux@zary.sk>
Link: https://lore.kernel.org/r/1f26ead9dd0dc053fcd27979d69a7ca74b6589b4.1573875417.git.fthain@telegraphics.com.au
Reviewed-and-tested-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Ondrej Zary <linux@zary.sk>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Passing the parameter "num_tgts=-1" will start an infinite loop that
exhausts the system memory
Link: https://lore.kernel.org/r/20191115163727.24626-1-mlombard@redhat.com
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Looking at the recent conversion from smp_processor_id() to
raw_smp_processor_id(), realized that the allocation should be based on the
cpu the hdwq is bound to, not the executing cpu.
Revise to pull cpu number from the hdwq
Fixes: 765ab6cdac ("scsi: lpfc: Fix a kernel warning triggered by lpfc_get_sgl_per_hdwq()")
Link: https://lore.kernel.org/r/20191116003847.6141-1-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The variable init_fw_cb is released twice, resulting in a double free
bug. The call to the function dma_free_coherent() before goto is removed to
get rid of potential double free.
Fixes: 2a49a78ed3 ("[SCSI] qla4xxx: added IPv6 support.")
Link: https://lore.kernel.org/r/1572945927-27796-1-git-send-email-bianpan2016@163.com
Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added the correct method to collect the fatal dump.
Link: https://lore.kernel.org/r/20191114100910.6153-14-deepak.ukey@microchip.com
Reported-by: kbuild test robot <lkp@intel.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
With MSI-x enabled, the interrupt instances are <prefix><index> where the
prefix is fixed for all module instances, making it a little harder to
track down what's what.
Link: https://lore.kernel.org/r/20191114100910.6153-13-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Vikram Auradkar <auradkar@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added support to check controller fatal error through sysfs.
Link: https://lore.kernel.org/r/20191114100910.6153-12-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Occasionally, 6G capable drives fail to train at 6G on links that look good
from a signal-integrity perspective. PMC suggests configuring the port to
not even expect 12G.
Link: https://lore.kernel.org/r/20191114100910.6153-11-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added the fix so the if driver properly sent the abort it tries to remove
it from the firmware's list of outstanding commands regardless of the abort
status. This means that the task gets freed 'now' rather than possibly
getting freed later when the scsi layer thinks it's leaked but still valid.
Link: https://lore.kernel.org/r/20191114100910.6153-10-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The commands to the controller are sent in fixed sized chunks which are set
per-chip-generation and stashed in iomb_size. The driver fills in structs
matching the register layout and memcpy this to memory shared with the
controller. However, there are two problem cases:
1) Things like phy_start_req are too large because they share the
sas_identify_frame definition with libsas, and it includes the crc
word. This means that it's overwriting the start of the next
command block, that's ok except if it happens at the end of the
shared memory area.
2) Things like set_nvm_data_req which are shared between the HAL
layers. This means that it's sending 'random' data for things that
are in the reserved area. So far we haven't found a case where the
controller FW cares, but sending possible gibberish (for most of
the structures this is in the reserved area so previously zeroed)
is not recommended.
Link: https://lore.kernel.org/r/20191114100910.6153-9-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
sas_task structure should not be used after task_done is called. If the
device is gone or not attached, we call task_done on t and continue to use
in the sas_task in rest of the function. task_done is pointing to
sas_ata_task_done, may free the memory associated with the task before
returning.
Link: https://lore.kernel.org/r/20191114100910.6153-8-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Vikram Auradkar <auradkar@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The function mpi_uninit_check takes longer for inbound doorbell register to
be cleared. Increased the timeout substantially so that the driver does not
fail to load.
Link: https://lore.kernel.org/r/20191114100910.6153-7-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: ianyar <ianyar@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The default logging doesn't include the device name, so it's difficult to
determine which controller is being logged about in error scenarios. The
logging level was only settable via sysfs, which made it inconvenient for
actual debugging. This changes the default to only cover error handling.
Link: https://lore.kernel.org/r/20191114100910.6153-6-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For delays longer than 20ms [um]delay isn't recommended.
pm80xx_chip_soft_rst starts off with a 500ms delay before it even gets
around to checking for the results of the reset. As long as it's at least
500ms it doesn't matter what the scheduler is doing. The delay in the
pm8001_exec_internal_task_abort does nothing, and theory is this is a delay
to avoid a double-free.
Link: https://lore.kernel.org/r/20191114100910.6153-5-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Vikram Auradkar <auradkar@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In pm8001_task_exec(), if the PHY is down, then we return the current value
of 'rc'. We need to make sure it's initialized.
Link: https://lore.kernel.org/r/20191114100910.6153-4-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: John Sperbeck <jsperbeck@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After the completing the mpi_phy_start_resp, make phy enable completion as
NULL.
Link: https://lore.kernel.org/r/20191114100910.6153-3-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Driver was missing complete() call in mpi_sata_completion which result in
SATA abort error handling timing out. That causes the device to be left in
the in_recovery state so subsequent commands sent to the device fail and
the OS removes access to it.
Link: https://lore.kernel.org/r/20191114100910.6153-2-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During clock gating (ufshcd_gate_work()), we first put the link hibern8 by
calling ufshcd_uic_hibern8_enter() and if ufshcd_uic_hibern8_enter()
returns success (0) then we gate all the clocks. Now let’s zoom in to what
ufshcd_uic_hibern8_enter() does internally: It calls
__ufshcd_uic_hibern8_enter() and if failure is encountered, link recovery
shall put the link back to the highest HS gear and returns success (0) to
ufshcd_uic_hibern8_enter() which is the issue as link is still in active
state due to recovery! Now ufshcd_uic_hibern8_enter() returns success to
ufshcd_gate_work() and hence it goes ahead with gating the UFS clock while
link is still in active state hence I believe controller would raise UIC
error interrupts. But when we service the interrupt, clocks might have
already been disabled!
This change fixes for this by returning failure from
__ufshcd_uic_hibern8_enter() if recovery succeeds as link is still not in
hibern8, upon receiving the error ufshcd_hibern8_enter() would initiate
retry to put the link state back into hibern8.
Link: https://lore.kernel.org/r/1573798172-20534-8-git-send-email-cang@codeaurora.org
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This change attempts to abort gating of clocks if a request to turn-on
clocks is pending. This would in turn avoid turning OFF and back ON the
clocks.
Link: https://lore.kernel.org/r/1573798172-20534-7-git-send-email-cang@codeaurora.org
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Return IRQ_HANDLED only if the irq is really handled, this will help in
catching spurious interrupts that go unhandled.
Link: https://lore.kernel.org/r/1573798172-20534-6-git-send-email-cang@codeaurora.org
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
ufshcd_print_host_regs() can be called by interrupt handler, but it may
sleep due to ufshcd_dump_regs() allocates the dump buffer memory with flag
GFP_KERNEL. Fix it by changing GFP_KERNEL to GFP_ATMOIC.
Link: https://lore.kernel.org/r/1573798172-20534-5-git-send-email-cang@codeaurora.org
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix up possible unclocked register access to auto hibern8 register in
resume path and through sysfs entry. Meanwhile, enable auto hibern8 only
after device is fully initialized in probe path.
Link: https://lore.kernel.org/r/1573798172-20534-4-git-send-email-cang@codeaurora.org
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add reset control for host controller so that host controller can be reset
as required in its power up sequence.
Link: https://lore.kernel.org/r/1573798172-20534-3-git-send-email-cang@codeaurora.org
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In order to recover from hibern8 exit failure, perform a reset in link
recovery path before issuing link start-up.
Link: https://lore.kernel.org/r/1573798172-20534-2-git-send-email-cang@codeaurora.org
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/sd_zbc.c: In function 'sd_zbc_check_zones':
drivers/scsi/sd_zbc.c:341:9: warning:
variable 'buflen' set but not used [-Wunused-but-set-variable]
It is not used since commit d9dd73087a ("block: Enhance
blk_revalidate_disk_zones()")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Remove SG_NONE and a related misleading comment. Update documentation.
This patch does not affect behaviour as zero initialization is redundant.
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Viresh Kumar <vireshk@kernel.org>
Cc: Oliver Neukum <oneukum@suse.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: usb-storage@lists.one-eyed-alien.net
Link: https://lore.kernel.org/r/b4779b7a6563f6bd8d259ee457871c1c463c420e.1572656814.git.fthain@telegraphics.com.au
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For some reason this driver depends on !64BIT, but it can still be useful
to allow compile-testing on 64-bit machines.
Link: https://lore.kernel.org/r/20191105085609.2338-3-johan@kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The MODULE_LICENSE macro is unconditionally defined in module.h, no need to
ifdef its use.
Link: https://lore.kernel.org/r/20191105085609.2338-2-johan@kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
platform_get_irq() will call dev_err() itself on failure, so there is no
need for the driver to also do this. This is detected by coccinelle.
Link: https://lore.kernel.org/r/20191101140058.23212-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When using this driver on a Blizzard 1260, there were failures whenever DMA
transfers from the SCSI bus to memory of 65535 bytes were followed by a DMA
transfer of 1 byte. This caused the byte at offset 65535 to be overwritten
with 0xff. The Blizzard hardware can't handle single byte DMA transfers.
Besides this issue, limiting the DMA length to something that is not a
multiple of the page size is very inefficient on most file systems.
It seems this limit was chosen because the DMA transfer counter of the ESP
by default is 16 bits wide, thus limiting the length to 65535 bytes.
However, the value 0 means 65536 bytes, which is handled by the ESP and the
Blizzard just fine. It is also the default maximum used by esp_scsi when
drivers don't provide their own dma_length_limit() function.
The limit of 65536 bytes can be used by all boards except the Fastlane. The
old driver used a limit of 65532 bytes (0xfffc), which is reintroduced in
this patch.
Fixes: b7ded0e8b0 ("scsi: zorro_esp: Limit DMA transfers to 65535 bytes")
Link: https://lore.kernel.org/r/20191112175523.23145-1-jongk@linux-m68k.org
Signed-off-by: Kars de Jong <jongk@linux-m68k.org>
Reviewed-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/csiostor/csio_lnode.c: In function 'csio_ln_init':
drivers/scsi/csiostor/csio_lnode.c:1995:21: warning:
variable 'rln' set but not used [-Wunused-but-set-variable]
It is never used since introduction, so remove it.
Link: https://lore.kernel.org/r/20191029061530.98197-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In function __ufshcd_query_descriptor(), in the event of an error
happening, we directly goto out_unlock and forget to invaliate
hba->dev_cmd.query.descriptor pointer. This results in this pointer still
valid in ufshcd_copy_query_response() for other query requests which go
through ufshcd_exec_raw_upiu_cmd(). This will cause __memcpy() crash and
system hangs. Log as shown below:
Unable to handle kernel paging request at virtual address
ffff000012233c40
Mem abort info:
ESR = 0x96000047
Exception class = DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
Data abort info:
ISV = 0, ISS = 0x00000047
CM = 0, WnR = 1
swapper pgtable: 4k pages, 48-bit VAs, pgdp = 0000000028cc735c
[ffff000012233c40] pgd=00000000bffff003, pud=00000000bfffe003,
pmd=00000000ba8b8003, pte=0000000000000000
Internal error: Oops: 96000047 [#2] PREEMPT SMP
...
Call trace:
__memcpy+0x74/0x180
ufshcd_issue_devman_upiu_cmd+0x250/0x3c0
ufshcd_exec_raw_upiu_cmd+0xfc/0x1a8
ufs_bsg_request+0x178/0x3b0
bsg_queue_rq+0xc0/0x118
blk_mq_dispatch_rq_list+0xb0/0x538
blk_mq_sched_dispatch_requests+0x18c/0x1d8
__blk_mq_run_hw_queue+0xb4/0x118
blk_mq_run_work_fn+0x28/0x38
process_one_work+0x1ec/0x470
worker_thread+0x48/0x458
kthread+0x130/0x138
ret_from_fork+0x10/0x1c
Code: 540000ab a8c12027 a88120c7 a8c12027 (a88120c7)
---[ end trace 793e1eb5dff69f2d ]---
note: kworker/0:2H[2054] exited with preempt_count 1
This patch is to move "descriptor = NULL" down to below the label
"out_unlock".
Fixes: d44a5f98bb49b2(ufs: query descriptor API)
Link: https://lore.kernel.org/r/20191112223436.27449-3-huobean@gmail.com
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Print out returned response size and buffer size, while the front one is
bigger than the back one.
Link: https://lore.kernel.org/r/20191112223436.27449-2-huobean@gmail.com
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently we call function hisi_sas_debugfs_exit() to remove debugfs_dir
before freeing interrupt irqs and destroying workqueue in the driver remove
path.
If a dump is triggered before function hisi_sas_debugfs_exit() but
debugfs_work may be called after it, so it may refer to already removed
debugfs_dir which will cause NULL pointer dereference.
To avoid it, put function hisi_sas_debugfs_exit() after free_irqs and
destroy workqueue when removing hisi_sas driver.
Link: https://lore.kernel.org/r/1573551059-107873-4-git-send-email-john.garry@huawei.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Need to return directly if init hardware failed.
Fixes: 73a4925d15 ("scsi: hisi_sas: Update all the registers after suspend and resume")
Link: https://lore.kernel.org/r/1573551059-107873-3-git-send-email-john.garry@huawei.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update lpfc version to 12.6.0.2
Link: https://lore.kernel.org/r/20191111230401.12958-7-jsmart2021@gmail.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Driver is setting the initiator nvme template with a max hw queues value of
the present cpu count which is odd. It should be registering the number of
hdwq queues (queues created on the adapter).
Change to set nvme tempate, in all cases, to the number of hardware queues.
Link: https://lore.kernel.org/r/20191111230401.12958-6-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently, cpu_map[cpu#]->hdwq is left to equal LPFC_VECTOR_MAP_EMPTY for
not present CPUs. If a CPU is dynamically hot-added, it is possible we may
crash due to not assigning an allocated hdwq.
Correct by assigning a hdwq at initialization for all not-present CPUs.
Fixes: dcaa213679 ("scsi: lpfc: Change default IRQ model on AMD architectures")
Link: https://lore.kernel.org/r/20191111230401.12958-5-jsmart2021@gmail.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Compilation can fail due to having an inline function reference where the
function body is not present.
Fix by removing the inline tag.
Fixes: 93a4d6f401 ("scsi: lpfc: Add registration for CPU Offline/Online events")
Link: https://lore.kernel.org/r/20191111230401.12958-4-jsmart2021@gmail.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Coverity reported the following:
*** CID 101747: Null pointer dereferences (FORWARD_NULL)
/drivers/scsi/lpfc/lpfc_els.c: 4439 in lpfc_cmpl_els_rsp()
4433 kfree(mp);
4434 }
4435 mempool_free(mbox, phba->mbox_mem_pool);
4436 }
4437 out:
4438 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
vvv CID 101747: Null pointer dereferences (FORWARD_NULL)
vvv Dereferencing null pointer "shost".
4439 spin_lock_irq(shost->host_lock);
4440 ndlp->nlp_flag &= ~(NLP_ACC_REGLOGIN | NLP_RM_DFLT_RPI);
4441 spin_unlock_irq(shost->host_lock);
4442
4443 /* If the node is not being used by another discovery thread,
4444 * and we are sending a reject, we are done with it.
Fix by adding a check for non-null shost in line 4438.
The scenario when shost is set to null is when ndlp is null.
As such, the ndlp check present was sufficient. But better safe
than sorry so add the shost check.
Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 101747 ("Null pointer dereferences")
Fixes: 2e0fef85e0 ("[SCSI] lpfc: NPIV: split ports")
CC: James Bottomley <James.Bottomley@SteelEye.com>
CC: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
CC: linux-next@vger.kernel.org
Link: https://lore.kernel.org/r/20191111230401.12958-3-jsmart2021@gmail.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
TI's J721e SoC has a Cadence UFS IP with a TI specific wrapper. This is a
minimal driver to configure the wrapper. It releases the UFS slave device
out of reset and sets up registers to indicate PHY reference clock input
frequency before probing child Cadence UFS driver.
Link: https://lore.kernel.org/r/20191108164857.11466-3-vigneshr@ti.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Avoid the need to allocate a potentially large array of struct blk_zone
in the block layer by switching the ->report_zones method interface to
a callback model. Now the caller simply supplies a callback that is
executed on each reported zone, and private data for it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
There is no need to arbitrarily limit the size of a report zone to the
number of zones defined by SD_ZBC_REPORT_MAX_ZONES. Rather, simply
calculate the report buffer size needed for the requested number of
zones without exceeding the device total number of zones. This buffer
size limitation to the hardware maximum transfer size and page mapping
capabilities is kept unchanged. Starting with this initial buffer size,
the allocation is optimized by iterating over decreasing buffer size
until the allocation succeeds (each iteration is allowed to fail fast
using the __GFP_NORETRY flag). This ensures forward progress for zone
reports and avoids failures of zones revalidation under memory pressure.
While at it, also replace the hard coded 512 B sector size with the
SECTOR_SIZE macro.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
For ZBC and ZAC zoned devices, the scsi driver revalidation processing
implemented by sd_revalidate_disk() includes a call to
sd_zbc_read_zones() which executes a full disk zone report used to
check that all zones of the disk are the same size. This processing is
followed by a call to blk_revalidate_disk_zones(), used to initialize
the device request queue zone bitmaps (zone type and zone write lock
bitmaps). To do so, blk_revalidate_disk_zones() also executes a full
device zone report to obtain zone types. As a result, the entire
zoned block device revalidation process includes two full device zone
report.
By moving the zone size checks into blk_revalidate_disk_zones(), this
process can be optimized to a single full device zone report, leading to
shorter device scan and revalidation times. This patch implements this
optimization, reducing the original full device zone report implemented
in sd_zbc_check_zones() to a single, small, report zones command
execution to obtain the size of the first zone of the device. Checks
whether all zones of the device are the same size as the first zone
size are moved to the generic blk_check_zone() function called from
blk_revalidate_disk_zones().
This optimization also has the following benefits:
1) fewer memory allocations in the scsi layer during disk revalidation
as the potentailly large buffer for zone report execution is not
needed.
2) Implement zone checks in a generic manner, reducing the burden on
device driver which only need to obtain the zone size and check that
this size is a power of 2 number of LBAs. Any new type of zoned
block device will benefit from this.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
* for-5.5/drivers-post:
scsi: sd_zbc: add zone open, close, and finish support
scsi: core: Handle drivers which set sg_tablesize to zero
scsi: qla2xxx: fix NPIV tear down process
scsi: sd_zbc: Fix sd_zbc_complete()
scsi: qla2xxx: stop timer in shutdown path
scsi: sd: define variable dif as unsigned int instead of bool
scsi: target: cxgbit: Fix cxgbit_fw4_ack()
scsi: qla2xxx: Fix partial flash write of MBI
scsi: qla2xxx: Initialized mailbox to prevent driver load failure
scsi: lpfc: Honor module parameter lpfc_use_adisc
scsi: ufs-bsg: Wake the device before sending raw upiu commands
scsi: lpfc: Check queue pointer before use
scsi: qla2xxx: fixup incorrect usage of host_byte
struct scsi_cmnd cmd->req.resid_len which is returned and set respectively
by the helper functions scsi_get_resid() and scsi_set_resid() is an
unsigned int. Reflect this fact in the interface of these helper functions.
Also fix compilation errors due to min() and max() type mismatch introduced
by this change in scsi debug code, usb transport code and in the USB ENE
card reader driver.
Link: https://lore.kernel.org/r/20191030090847.25650-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following kernel warning:
cpumask_of_node(-1): (unsigned)node >= nr_node_ids(1)
Fixes: dcaa213679 ("scsi: lpfc: Change default IRQ model on AMD architectures")
Link: https://lore.kernel.org/r/20191108225947.1395-1-jsmart2021@gmail.com
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following kernel bug report:
BUG: using smp_processor_id() in preemptible [00000000] code: systemd-udevd/954
Fixes: d79c9e9d4b ("scsi: lpfc: Support dynamic unbounded SGL lists on G7 hardware.")
Link: https://lore.kernel.org/r/20191107052158.25788-2-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Avoid an uninitialized value (0) for ha->fc4_type_priority being falsely
interpreted as NVMe priority. Not strictly needed any more after the
previous patch, but makes the fc4_type_priority handling more explicit.
Link: https://lore.kernel.org/r/20191107224839.32417-3-martin.wilck@suse.com
Tested-by: David Bond <dbond@suse.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
ha->fc4_type_priority is currently initialized only in
qla81xx_nvram_config(). That makes it default to NVMe for other adapters.
Fix it.
Fixes: 84ed362ac4 ("scsi: qla2xxx: Dual FCP-NVMe target port support")
Link: https://lore.kernel.org/r/20191107224839.32417-2-martin.wilck@suse.com
Tested-by: David Bond <dbond@suse.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Since the code in qla_init.c is initiator code, remove the SCSI target core
include directive.
Cc: Himanshu Madhani <hmadhani@marvell.com>
Link: https://lore.kernel.org/r/20191106044226.5207-2-bvanassche@acm.org
Reviewed-by: Martin Wilck <mwilck@suse.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
P2P needs to take the alternate plogi route.
Link: https://lore.kernel.org/r/20191105150657.8092-8-hmadhani@marvell.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
On heavy loads, a memory leak of the srb_t structure is observed. This
would make the qla2xxx_srbs cache gobble up memory.
Fixes: 219d27d714 ("scsi: qla2xxx: Fix race conditions in the code for aborting SCSI commands")
Cc: stable@vger.kernel.org # 5.2
Link: https://lore.kernel.org/r/20191105150657.8092-7-hmadhani@marvell.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Current code assumes abort will remove the original command from the active
list where scsi_done will not be called. Instead, the eh_abort thread will
do the scsi_done. That is not the case. Instead, we have a double
scsi_done calls triggering use after free.
Abort will tell FW to release the command from FW possesion. The original
command will return to ULP with error in its normal fashion via scsi_done.
eh_abort path would wait for the original command completion before
returning. eh_abort path will not perform the scsi_done call.
Fixes: 219d27d714 ("scsi: qla2xxx: Fix race conditions in the code for aborting SCSI commands")
Cc: stable@vger.kernel.org # 5.2
Link: https://lore.kernel.org/r/20191105150657.8092-6-hmadhani@marvell.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
when GPSC/GPDB switch command fails, driver just returns without doing a
proper cleanup. This patch fixes this memory leak by calling sp->free() in
the error path.
Link: https://lore.kernel.org/r/20191105150657.8092-4-hmadhani@marvell.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
On switch, fabric and mgt command timeout, driver send Abort to tell FW to
return the original command. If abort is timeout, then return both Abort
and original command for cleanup.
Fixes: 219d27d714 ("scsi: qla2xxx: Fix race conditions in the code for aborting SCSI commands")
Cc: stable@vger.kernel.org # 5.2
Link: https://lore.kernel.org/r/20191105150657.8092-3-hmadhani@marvell.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Current code will send PRLI with FC-NVMe bit set for the targets which
support only FCP. This may result into issue with targets which do not
understand NVMe and will go into a strange state. This patch would restart
the login process by going back to PLOGI state. The PLOGI state will force
the target to respond to correct PRLI request.
Fixes: c76ae845ea ("scsi: qla2xxx: Add error handling for PLOGI ELS passthrough")
Cc: stable@vger.kernel.org # 5.4
Link: https://lore.kernel.org/r/20191105150657.8092-2-hmadhani@marvell.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Implement REQ_OP_ZONE_OPEN, REQ_OP_ZONE_CLOSE and REQ_OP_ZONE_FINISH
support to allow explicit control of zone states.
Contains contributions from Matias Bjorling, Hans Holmberg,
Keith Busch and Damien Le Moal.
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ajay Joshi <ajay.joshi@wdc.com>
Signed-off-by: Matias Bjorling <matias.bjorling@wdc.com>
Signed-off-by: Hans Holmberg <hans.holmberg@wdc.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi:
scsi: core: Handle drivers which set sg_tablesize to zero
scsi: qla2xxx: fix NPIV tear down process
scsi: sd_zbc: Fix sd_zbc_complete()
Nine changes, eight in drivers [ufs, target, lpfc x 2, qla2xxx x 4]
and one core change in sd that fixes an I/O failure on DIF type 3
devices.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi into for-5.5/drivers-post
SCSI fixes on 20191101
Nine changes, eight in drivers [ufs, target, lpfc x 2, qla2xxx x 4]
and one core change in sd that fixes an I/O failure on DIF type 3
devices.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (23 commits)
scsi: qla2xxx: stop timer in shutdown path
scsi: sd: define variable dif as unsigned int instead of bool
scsi: target: cxgbit: Fix cxgbit_fw4_ack()
scsi: qla2xxx: Fix partial flash write of MBI
scsi: qla2xxx: Initialized mailbox to prevent driver load failure
scsi: lpfc: Honor module parameter lpfc_use_adisc
scsi: ufs-bsg: Wake the device before sending raw upiu commands
scsi: lpfc: Check queue pointer before use
scsi: qla2xxx: fixup incorrect usage of host_byte
scsi: lpfc: remove left-over BUILD_NVME defines
scsi: core: try to get module before removing device
scsi: hpsa: add missing hunks in reset-patch
scsi: target: core: Do not overwrite CDB byte 1
scsi: ch: Make it possible to open a ch device multiple times again
scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE
scsi: sni_53c710: fix compilation error
scsi: scsi_dh_alua: handle RTPG sense code correctly during state transitions
scsi: qla2xxx: fix a potential NULL pointer dereference
scsi: MAINTAINERS: Update qla2xxx driver
scsi: zfcp: fix reaction on bit error threshold notification
...
In scsi_mq_setup_tags(), cmd_size is calculated based on zero size for the
scatter-gather list in case the low level driver uses SG_NONE in its host
template.
cmd_size is passed on to the block layer for calculation of the request
size, and we've seen NULL pointer dereference errors from the block layer
in drivers where SG_NONE is used and a mq IO scheduler is active,
apparently as a consequence of this (see commit 68ab2d76e4 ("scsi:
cxlflash: Set sg_tablesize to 1 instead of SG_NONE"), and a recent patch by
Finn Thain converting the three m68k NFR5380 drivers to avoid setting
SG_NONE).
Try to avoid these errors by accounting for at least one sg list entry when
calculating cmd_size, regardless of whether the low level driver set a zero
sg_tablesize.
Tested on 030 m68k with the atari_scsi driver - setting sg_tablesize to
SG_NONE no longer results in a crash when loading this driver.
CC: Finn Thain <fthain@telegraphics.com.au>
Link: https://lore.kernel.org/r/1572922150-4358-1-git-send-email-schmitzmic@gmail.com
Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
According to SBC-2 a TRANSFER LENGTH field of zero means that 256 logical
blocks must be transferred. Make the SCSI tracing code follow SBC-2.
Fixes: bf81623542 ("[SCSI] add scsi trace core functions and put trace points")
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Link: https://lore.kernel.org/r/20191105215553.185018-1-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update lpfc version to 12.6.0.1
Link: https://lore.kernel.org/r/20191105005708.7399-12-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Some adapters support the ability to hold multiple adapter dumps on the
adapter flash. Some adapters default to enabling this feature while others
default to single-dump.
Make support uniform by enabling dual dump by default.
Link: https://lore.kernel.org/r/20191105005708.7399-11-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The current driver attempts to allocate an interrupt vector per cpu using
the systems managed IRQ allocator (flag PCI_IRQ_AFFINITY). The system IRQ
allocator will either provide the per-cpu vector, or return fewer
vectors. When fewer vectors, they are evenly spread between the numa nodes
on the system. When run on an AMD architecture, if interrupts occur to a
cpu that is not in the same numa node as the adapter generating the
interrupt, there are extreme costs and overheads in performance. Thus, if
1:1 vector allocation is used, or the "balanced" vectors in the other numa
nodes, performance can be hit significantly.
A much more performant model is to allocate interrupts only on the cpus
that are in the numa node where the adapter resides. I/O completion is
still performed by the cpu where the I/O was generated. Unfortunately,
there is no flag to request the managed IRQ subsystem allocate vectors only
for the CPUs in the numa node as the adapter.
On AMD architecture, revert the irq allocation to the normal style
(non-managed) and then use irq_set_affinity_hint() to set the cpu
affinity and disable user-space rebalancing.
Tie the support into CPU offline/online. If the cpu being offlined owns a
vector, the vector is re-affinitized to one of the other CPUs on the same
numa node. If there are no more CPUs on the numa node, the vector has all
affinity removed and lets the system determine where it's serviced.
Similarly, when the cpu that owned a vector comes online, the vector is
reaffinitized to the cpu.
Link: https://lore.kernel.org/r/20191105005708.7399-10-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The recent affinitization didn't address cpu offlining/onlining. If an
interrupt vector is shared and the low order cpu owning the vector is
offlined, as interrupts are managed, the vector is taken offline. This
causes the other CPUs sharing the vector will hang as they can't get io
completions.
Correct by registering callbacks with the system for Offline/Online
events. When a cpu is taken offline, its eq, which is tied to an interrupt
vector is found. If the cpu is the "owner" of the vector and if the
eq/vector is shared by other CPUs, the eq is placed into a polled mode.
Additionally, code paths that perform io submission on the "sharing CPUs"
will check the eq state and poll for completion after submission of new io
to a wq that uses the eq.
Similarly, when a cpu comes back online and owns an offlined vector, the eq
is taken out of polled mode and rearmed to start driving interrupts for eq.
Link: https://lore.kernel.org/r/20191105005708.7399-9-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Current message on FAWWN events is rather cryptic.
Expand the message to clarify its meaning.
Link: https://lore.kernel.org/r/20191105005708.7399-8-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Prior to the last FC-NVME-2 draft, SLER and CONF were independent. SLER
now requires CONF to be set.
Revise the NVME PRLI checking to look for both inorder to enable SLER.
Link: https://lore.kernel.org/r/20191105005708.7399-7-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The recently posted patch had a typo that incorrectly tested the receiving
function.
Fix the typo (change == to !=)
Fixes: 95bfc6d8ad ("scsi: lpfc: Make FW logging dynamically configurable")
Link: https://lore.kernel.org/r/20191105005708.7399-6-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During heavy RCN activity and log_verbose = 0 we see these messages:
2754 PRLI failure DID:521245 Status:x9/xb2c00, data: x0
0231 RSCN timeout Data: x0 x3
0230 Unexpected timeout, hba link state x5
This is due to delayed RSCN activity.
Correct by avoiding the timeout thus the messages by restarting the
discovery timeout whenever an rscn is received.
Filter PRLI responses such that severity depends on whether expected for
the configuration or not. For example, PRLI errors on a fabric will be
informational (they are expected), but Point-to-Point errors are not
necessarily expected so they are raised to an error level.
Link: https://lore.kernel.org/r/20191105005708.7399-5-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When reading sysfs nvme_info file while a remote port leaves and comes
back, a NULL pointer is encountered. The issue is due to ndlp list
corruption as the the nvme_info_show does not use the same lock as the rest
of the code.
Correct by removing the rcu_xxx_lock calls and replace by the host_lock and
phba->hbaLock spinlocks that are used by the rest of the driver. Given
we're called from sysfs, we are safe to use _irq rather than _irqsave.
Link: https://lore.kernel.org/r/20191105005708.7399-4-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver today is reading service parameters from the firmware and then
overwriting the firmware-provided values with values of its own. There are
some switch features that require preliminary FLOGI's that are
switch-specific and done prior to the actual fabric FLOGI for traffic. The
fw will perform those FLOGIs and will revise the service parameters for the
features configured. As the driver later overwrites those values with its
own values, it misconfigures things like BBSCN use by doing so.
Correct by eliminating the driver-overwrite of firmware values. The driver
correctly re-reads the service parameters after each link up to obtain the
latest values from firmware.
Link: https://lore.kernel.org/r/20191105005708.7399-3-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If the driver receives a login that is later then LOGO'd by the remote port
(aka ndlp), the driver, upon the completion of the LOGO ACC transmission,
will logout the node and unregister the rpi that is being used for the
node. As part of the unreg, the node's rpi value is replaced by the
LPFC_RPI_ALLOC_ERROR value. If the port is subsequently offlined, the
offline walks the nodes and ensures they are logged out, which possibly
entails unreg'ing their rpi values. This path does not validate the node's
rpi value, thus doesn't detect that it has been unreg'd already. The
replaced rpi value is then used when accessing the rpi bitmask array which
tracks active rpi values. As the LPFC_RPI_ALLOC_ERROR value is not a valid
index for the bitmask, it may fault the system.
Revise the rpi release code to detect when the rpi value is the replaced
RPI_ALLOC_ERROR value and ignore further release steps.
Link: https://lore.kernel.org/r/20191105005708.7399-2-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
simply not needed there - neither sg_new_read() nor sg_new_write() need
it.
Link: https://lore.kernel.org/r/20191017193925.25539-8-viro@ZenIV.linux.org.uk
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Just use plain copy_from_user() and get_user(). Note that while a
buf-derived pointer gets stored into ->dxferp, all places that actually use
the resulting value feed it either to import_iovec() or to
import_single_range(), and both will do validation.
Link: https://lore.kernel.org/r/20191017193925.25539-7-viro@ZenIV.linux.org.uk
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use copy_..._user() instead, both in sg_read() and in sg_read_oxfer(). And
don't open-code memdup_user()...
Link: https://lore.kernel.org/r/20191017193925.25539-6-viro@ZenIV.linux.org.uk
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
... just use copy_from_user(). We copy only SZ_SG_IO_HDR bytes, so that
would, strictly speaking, loosen the check. However, for call chains via
->write() the caller has actually checked the entire range and SG_IO passes
exactly SZ_SG_IO_HDR for count. So no visible behaviour changes happen if
we check only what we really need for copyin.
Link: https://lore.kernel.org/r/20191017193925.25539-5-viro@ZenIV.linux.org.uk
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We don't need to allocate a temporary buffer and read the entire structure
in it, only to fetch a single field and free what we'd allocated. Just use
get_user() and be done with it...
Link: https://lore.kernel.org/r/20191017193925.25539-4-viro@ZenIV.linux.org.uk
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
First of all, __put_user() can fail with access_ok() succeeding. And
access_ok() + __copy_to_user() is spelled copy_to_user()...
__put_user() *can* fail with access_ok() succeeding...
Link: https://lore.kernel.org/r/20191017193925.25539-1-viro@ZenIV.linux.org.uk
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The memory chunk io_req is released by mempool_free. Accessing
io_req->start_time will result in a use after free bug. The variable
start_time is a backup of the timestamp. So, use start_time here to
avoid use after free.
Link: https://lore.kernel.org/r/1572881182-37664-1-git-send-email-bianpan2016@163.com
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix two issues with commit f5187b7d1a ("scsi: qla2xxx: Optimize NPIV
tear down process"): a missing negation in a wait_event_timeout()
condition, and a missing loop end condition.
Fixes: f5187b7d1a ("scsi: qla2xxx: Optimize NPIV tear down process")
Link: https://lore.kernel.org/r/20191105145550.10268-1-martin.wilck@suse.com
Signed-off-by: Martin Wilck <mwilck@suse.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The ILLEGAL REQUEST/INVALID FIELD IN CDB error generated by an attempt to
reset a conventional zone does not apply to the reset write pointer command
with the ALL bit set, that is, to REQ_OP_ZONE_RESET_ALL requests. Fix
sd_zbc_complete() to be quiet only in the case of REQ_OP_ZONE_RESET,
excluding REQ_OP_ZONE_RESET_ALL.
Since REQ_OP_ZONE_RESET is the only request handled by sd_zbc_complete(),
also simplify the code using a simple if statement.
[mkp: applied by hand]
Fixes: d81e9d4943 ("scsi: implement REQ_OP_ZONE_RESET_ALL")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191027140549.26272-4-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Nine changes, eight in drivers [ufs, target, lpfc x 2, qla2xxx x 4]
and one core change in sd that fixes an I/O failure on DIF type 3
devices.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Nine changes, eight in drivers [ufs, target, lpfc x 2, qla2xxx x 4]
and one core change in sd that fixes an I/O failure on DIF type 3
devices"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: stop timer in shutdown path
scsi: sd: define variable dif as unsigned int instead of bool
scsi: target: cxgbit: Fix cxgbit_fw4_ack()
scsi: qla2xxx: Fix partial flash write of MBI
scsi: qla2xxx: Initialized mailbox to prevent driver load failure
scsi: lpfc: Honor module parameter lpfc_use_adisc
scsi: ufs-bsg: Wake the device before sending raw upiu commands
scsi: lpfc: Check queue pointer before use
scsi: qla2xxx: fixup incorrect usage of host_byte
This patch fixes an unintended sign extension on left shifts. From Colin
King: "Shifting a u8 left will cause the value to be promoted to an
integer. If the top bit of the u8 is set then the following conversion to
an u64 will sign extend the value causing the upper 32 bits to be set in
the result."
Fix this by using get_unaligned_be*() instead.
Fixes: bf81623542 ("[SCSI] add scsi trace core functions and put trace points")
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Link: https://lore.kernel.org/r/20191101211447.187151-1-bvanassche@acm.org
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Only csio_hw_free() calling csio_dfs_destroy() and it is not checking
return value. So remove the return from csio_dfs_destroy().
Link: https://lore.kernel.org/r/20191028194234.GA27848@saurav
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
debugfs_remove_recursive() has taken the null pointer into account. Remove
the null check before debugfs_remove_recursive().
Link: https://lore.kernel.org/r/20191026195625.GA22455@saurav
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Replace assignment of 0 to pointer with NULL assignment.
Link: https://lore.kernel.org/r/20191025135010.GA6191@saurav
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
It isn't necessary to check the host depth in scsi_queue_rq() any more
since it has been respected by blk-mq before calling scsi_queue_rq() via
getting driver tag.
Lots of LUNs may attach to same host and per-host IOPS may reach millions,
so we should avoid expensive atomic operations on the host-wide counter in
the IO path.
This patch implements scsi_host_busy() via blk_mq_tagset_busy_iter() with
one scsi command state for reading the count of busy IOs for scsi_mq.
It is observed that IOPS is increased by 15% in IO test on scsi_debug (32
LUNs, 32 submit queues, 1024 can_queue, libaio/dio) in a dual-socket
system.
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Ewan D. Milne <emilne@redhat.com>
Cc: Omar Sandoval <osandov@fb.com>,
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
Cc: James Bottomley <james.bottomley@hansenpartnership.com>,
Cc: Christoph Hellwig <hch@lst.de>,
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20191025065855.6309-1-ming.lei@redhat.com
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Declare all variables that hold dev_cmd_type values as an enum instead of
as an int.
Cc: Yaniv Gardi <ygardi@codeaurora.org>
Cc: Subhash Jadavani <subhashj@codeaurora.org>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20191029230710.211926-3-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following three kernel-doc warnings:
drivers/scsi/ufs/ufs_bsg.c:165: warning: Function parameter or member 'hba' not described in 'ufs_bsg_remove'
drivers/scsi/ufs/ufshcd.c:5789: warning: Function parameter or member 'cmd_type' not described in 'ufshcd_issue_devman_upiu_cmd'
drivers/scsi/ufs/ufshcd.c:5789: warning: Excess function parameter 'msgcode' description in 'ufshcd_issue_devman_upiu_cmd'
Cc: Yaniv Gardi <ygardi@codeaurora.org>
Cc: Subhash Jadavani <subhashj@codeaurora.org>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20191029230710.211926-2-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There is no need to call ufshcd_def_desc_sizes() in ufshcd_init(), since
descriptor lengths will be checked and initialized later in
ufshcd_init_desc_sizes().
Fixes: a4b0e8a4e92b1b(scsi: ufs: Factor out ufshcd_read_desc_param)
Link: https://lore.kernel.org/r/BN7PR08MB5684A3ACE214C3D4792CE729DB610@BN7PR08MB5684.namprd08.prod.outlook.com
Signed-off-by: Bean Huo <beanhuo@micron.com>
Acked-by: Avri Altman <avri.altman.wdc.com>
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pull RCU and LKMM changes from Paul E. McKenney:
- Documentation updates.
- Miscellaneous fixes.
- Dynamic tick (nohz) updates, perhaps most notably changes to
force the tick on when needed due to lengthy in-kernel execution
on CPUs on which RCU is waiting.
- Replace rcu_swap_protected() with rcu_prepace_pointer().
- Torture-test updates.
- Linux-kernel memory consistency model updates.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit replaces the use of rcu_swap_protected() with the more
intuitively appealing rcu_replace_pointer() as a step towards removing
rcu_swap_protected().
Link: https://lore.kernel.org/lkml/CAHk-=wiAsJLw1egFEE=Z7-GGtM6wcvtyytXZA1+BHqta4gg6Hw@mail.gmail.com/
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
[ paulmck: From rcu_replace() to rcu_replace_pointer() per Ingo Molnar. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: <linux-scsi@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Fix sparse warning:
drivers/scsi/lpfc/lpfc_debugfs.c:2083:1: warning:
symbol 'lpfc_debugfs_ras_log_data' was not declared. Should it be static?
Link: https://lore.kernel.org/r/20191028132556.16272-1-yuehaibing@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In shutdown/reboot paths, the timer is not stopped:
qla2x00_shutdown
pci_device_shutdown
device_shutdown
kernel_restart_prepare
kernel_restart
sys_reboot
This causes lockups (on powerpc) when firmware config space access calls
are interrupted by smp_send_stop later in reboot.
Fixes: e30d175648 ("[SCSI] qla2xxx: Addition of shutdown callback handler.")
Link: https://lore.kernel.org/r/20191024063804.14538-1-npiggin@gmail.com
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
mempool_destroy has taken null pointer check into account. Remove the
redundant check.
Link: https://lore.kernel.org/r/20191026194712.GA22249@saurav
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
convert MAGIC_NUMER_xxx to MAGIC_NUMBER_xxx
Link: https://lore.kernel.org/r/20191025184342.6623-1-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
lpfc_debufs.c was missing include of vmalloc.h when compiled on PPC.
Add missing header.
Link: https://lore.kernel.org/r/20191025182530.26653-1-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Nine changes, eight to drivers (qla2xxx, hpsa, lpfc, alua, ch,
53c710[x2], target) and one core change that tries to close a race
between sysfs delete and module removal.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Nine changes, eight to drivers (qla2xxx, hpsa, lpfc, alua, ch,
53c710[x2], target) and one core change that tries to close a race
between sysfs delete and module removal"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: lpfc: remove left-over BUILD_NVME defines
scsi: core: try to get module before removing device
scsi: hpsa: add missing hunks in reset-patch
scsi: target: core: Do not overwrite CDB byte 1
scsi: ch: Make it possible to open a ch device multiple times again
scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE
scsi: sni_53c710: fix compilation error
scsi: scsi_dh_alua: handle RTPG sense code correctly during state transitions
scsi: qla2xxx: fix a potential NULL pointer dereference
The number of phy down reflects the quality of the link between SAS
controller and disk. In order to allow the user to confirm the link quality
of the system, we record the number of phy down for each phy.
The user can check the current phy down count by reading the debugfs file
corresponding to the specific phy, or clear the phy down count by writing 0
to the debugfs file.
Link: https://lore.kernel.org/r/1571926105-74636-19-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Although if the debugfs initialization fails, we will delete the debugfs
folder of hisi_sas, but we did not consider the scenario where debugfs was
successfully initialized, but the probe failed for other reasons. We found
out that hisi_sas folder is still remain after the probe failed.
When probe fail, we should delete debugfs folder to avoid the above issue.
Link: https://lore.kernel.org/r/1571926105-74636-18-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We use the module parameter debugfs_dump_count to manage the upper limit of
the memory block for multiple dumps.
Link: https://lore.kernel.org/r/1571926105-74636-17-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We add multiple dumps for debugfs, but only allocate memory this time and
only dump #0.
Link: https://lore.kernel.org/r/1571926105-74636-15-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Create a file structure which was used to save the memory address for
ITCT cache at debugfs. This structure is bound to the corresponding debugfs
file, it can help callback function of debugfs file to get what it needs.
Link: https://lore.kernel.org/r/1571926105-74636-14-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Create a file structure which was used to save the memory address for IOST
cache at debugfs. This structure is bound to the corresponding debugfs
file, it can help callback function of debugfs file to get what it needs.
Link: https://lore.kernel.org/r/1571926105-74636-13-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Create a file structure which was used to save the memory address for ITCT
at debugfs. This structure is bound to the corresponding debugfs file, it
can help callback function of debugfs file to get what it needs.
Link: https://lore.kernel.org/r/1571926105-74636-12-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Create a file structure which was used to save the memory address for IOST
at debugfs. This structure is bound to the corresponding debugfs file, it
can help callback function of debugfs file to get what it needs.
Link: https://lore.kernel.org/r/1571926105-74636-11-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Create a file structure which was used to save the memory address and phy
pointer for port at debugfs. This structure is bound to the corresponding
debugfs file, it can help callback function of debugfs file to get what it
need.
Link: https://lore.kernel.org/r/1571926105-74636-10-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Create a file structure which was used to save the memory address and
hisi_hba pointer for REGS at debugfs. This structure is bound to the
corresponding debugfs file, it can help callback function of debugfs file
to get what it need.
Link: https://lore.kernel.org/r/1571926105-74636-9-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Create a file structure which was used to save the memory address and DQ
pointer for DQ at debugfs. This structure is bound to the corresponding
debugfs file, it can help callback function of debugfs file to get what it
need.
Link: https://lore.kernel.org/r/1571926105-74636-8-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Create a file structure which was used to save the memory address and CQ
pointer for CQ at debugfs. This structure is bound to the corresponding
debugfs file, it can help callback function of debugfs file to get what it
need.
Link: https://lore.kernel.org/r/1571926105-74636-7-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
It's useful to know when the dump occurred, so add a timestamp file for
this.
Link: https://lore.kernel.org/r/1571926105-74636-6-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For IOs from upper layer, preemption may be disabled as it may be called by
function __blk_mq_delay_run_hw_queue which will call get_cpu() (it disables
preemption). So if flags HISI_SAS_REJECT_CMD_BIT is set in function
hisi_sas_task_exec(), it may disable preempt twice after down() and up()
which will cause following call trace:
BUG: scheduling while atomic: fio/60373/0x00000002
Call trace:
dump_backtrace+0x0/0x150
show_stack+0x24/0x30
dump_stack+0xa0/0xc4
__schedule_bug+0x68/0x88
__schedule+0x4b8/0x548
schedule+0x40/0xd0
schedule_timeout+0x200/0x378
__down+0x78/0xc8
down+0x54/0x70
hisi_sas_task_exec.isra.10+0x598/0x8d8 [hisi_sas_main]
hisi_sas_queue_command+0x28/0x38 [hisi_sas_main]
sas_queuecommand+0x168/0x1b0 [libsas]
scsi_queue_rq+0x2ac/0x980
blk_mq_dispatch_rq_list+0xb0/0x550
blk_mq_do_dispatch_sched+0x6c/0x110
blk_mq_sched_dispatch_requests+0x114/0x1d8
__blk_mq_run_hw_queue+0xb8/0x130
__blk_mq_delay_run_hw_queue+0x1c0/0x220
blk_mq_run_hw_queue+0xb0/0x128
blk_mq_sched_insert_requests+0xdc/0x208
blk_mq_flush_plug_list+0x1b4/0x3a0
blk_flush_plug_list+0xdc/0x110
blk_finish_plug+0x3c/0x50
blkdev_direct_IO+0x404/0x550
generic_file_read_iter+0x9c/0x848
blkdev_read_iter+0x50/0x78
aio_read+0xc8/0x170
io_submit_one+0x1fc/0x8d8
__arm64_sys_io_submit+0xdc/0x280
el0_svc_common.constprop.0+0xe0/0x1e0
el0_svc_handler+0x34/0x90
el0_svc+0x10/0x14
...
To solve the issue, check preemptible() to avoid disabling preempt multiple
when flag HISI_SAS_REJECT_CMD_BIT is set.
Link: https://lore.kernel.org/r/1571926105-74636-5-git-send-email-john.garry@huawei.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When injecting 2bit ecc errors, it will cause confusion inside SAS
controller which needs host reset to recover it. If a device is gone at the
same times inject 2bit ecc errors, we may not receive the ITCT interrupt so
it will wait for completion in clear_itct_v3_hw() all the time. And host
reset will also not occur because it can't require hisi_hba->sem, so the
system will be suspended.
To solve the issue, use wait_for_completion_timeout() instead of
wait_for_completion(), and also don't mark the gone device as
SAS_PHY_UNUSED when device gone.
Link: https://lore.kernel.org/r/1571926105-74636-4-git-send-email-john.garry@huawei.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If set the BIST init value after enabling BIST, there may be still some few
error bits. According to the process, need to set the BIST init value
before enabling BIST.
Fixes: 97b151e758 ("scsi: hisi_sas: Add BIST support for phy loopback")
Link: https://lore.kernel.org/r/1571926105-74636-3-git-send-email-john.garry@huawei.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Due to a merge error, we attempt to create 2x debugfs dump folders, which
fails:
[ 861.101914] debugfs: Directory 'dump' with parent '0000:74:02.0'
already present!
This breaks the dump function.
To fix, remove the superfluous attempt to create the folder.
Fixes: 7ec7082c57 ("scsi: hisi_sas: Add hisi_sas_debugfs_alloc() to centralise allocation")
Link: https://lore.kernel.org/r/1571926105-74636-2-git-send-email-john.garry@huawei.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix misspellings of "disonnect", "reconnect", "connection", "connected",
and "disconnection".
Link: https://lore.kernel.org/r/20191024152633.30404-1-geert+renesas@glider.be
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
From an interrupt handler path memory may be allocated using
GFP_KERNEL, replace it with GFP_ATOMIC.
_base_interrupt->_scsih_io_done->_scsih_smart_predicted_fault
Link: https://lore.kernel.org/r/20191024152835.6177-1-thenzl@redhat.com
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This error path is missing an unlock.
Fixes: 26780d9e12 ("[SCSI] esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver")
Link: https://lore.kernel.org/r/20191022102324.GA27540@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2076:15:
warning: variable ppmax set but not used [-Wunused-but-set-variable]
drivers/target/iscsi/cxgbit/cxgbit_ddp.c:300:15:
warning: variable ppmax set but not used [-Wunused-but-set-variable]
It is not used since commit a248384e64 ("cxgb4/libcxgb/cxgb4i/cxgbit:
enable eDRAM page pods for iSCSI")
Link: https://lore.kernel.org/r/20191021142042.30964-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
These are called with IRQs disabled from csio_mgmt_tmo_handler() so we
can't call spin_unlock_irq() or it will enable IRQs prematurely.
Fixes: a3667aaed5 ("[SCSI] csiostor: Chelsio FCoE offload driver")
Link: https://lore.kernel.org/r/20191019085913.GA14245@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
