Commit Graph

18774 Commits

Author SHA1 Message Date
Asutosh Das 3c9edf5581 scsi: ufs: Recheck bkops level if bkops is disabled
commit 24366c2afb upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11 04:35:44 -08:00
Nathan Chancellor 5f8c02d322 scsi: qla4xxx: Adjust indentation in qla4xxx_mem_free
commit aa8679736a upstream.

Clang warns:

../drivers/scsi/qla4xxx/ql4_os.c:4148:3: warning: misleading
indentation; statement is not part of the previous 'if'
[-Wmisleading-indentation]
         if (ha->fw_dump)
         ^
../drivers/scsi/qla4xxx/ql4_os.c:4144:2: note: previous statement is
here
        if (ha->queues)
        ^
1 warning generated.

This warning occurs because there is a space after the tab on this
line.  Remove it so that the indentation is consistent with the Linux
kernel coding style and clang no longer warns.

Fixes: 068237c87c ("[SCSI] qla4xxx: Capture minidump for ISP82XX on firmware failure")
Link: https://github.com/ClangBuiltLinux/linux/issues/819
Link: https://lore.kernel.org/r/20191218015252.20890-1-natechancellor@gmail.com
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11 04:35:44 -08:00
Nathan Chancellor bdc7651e61 scsi: csiostor: Adjust indentation in csio_device_reset
commit a808a04c86 upstream.

Clang warns:

../drivers/scsi/csiostor/csio_scsi.c:1386:3: warning: misleading
indentation; statement is not part of the previous 'if'
[-Wmisleading-indentation]
         csio_lnodes_exit(hw, 1);
         ^
../drivers/scsi/csiostor/csio_scsi.c:1382:2: note: previous statement is
here
        if (*buf != '1')
        ^
1 warning generated.

This warning occurs because there is a space after the tab on this
line.  Remove it so that the indentation is consistent with the Linux
kernel coding style and clang no longer warns.

Fixes: a3667aaed5 ("[SCSI] csiostor: Chelsio FCoE offload driver")
Link: https://github.com/ClangBuiltLinux/linux/issues/818
Link: https://lore.kernel.org/r/20191218014726.8455-1-natechancellor@gmail.com
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11 04:35:44 -08:00
Bart Van Assche 454db8d616 scsi: qla2xxx: Fix the endianness of the qla82xx_get_fw_size() return type
commit 3f5f7335e5 upstream.

Since qla82xx_get_fw_size() returns a number in CPU-endian format, change
its return type from __le32 into u32. This patch does not change any
functionality.

Fixes: 9c2b297572 ("[SCSI] qla2xxx: Support for loading Unified ROM Image (URI) format firmware file.")
Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Daniel Wagner <dwagner@suse.de>
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
Link: https://lore.kernel.org/r/20191219004905.39586-1-bvanassche@acm.org
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11 04:35:44 -08:00
Arun Easi 8d313c04b4 scsi: qla2xxx: Fix unbound NVME response length
commit 00fe717ee1 upstream.

On certain cases when response length is less than 32, NVME response data
is supplied inline in IOCB. This is indicated by some combination of state
flags. There was an instance when a high, and incorrect, response length
was indicated causing driver to overrun buffers. Fix this by checking and
limiting the response payload length.

Fixes: 7401bc18d1 ("scsi: qla2xxx: Add FC-NVMe command handling")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200124045014.23554-1-hmadhani@marvell.com
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11 04:35:32 -08:00
Quinn Tran 0b84591fdd scsi: qla2xxx: Fix stuck login session using prli_pend_timer
[ Upstream commit 8aaac2d7da ]

Session is stuck if driver sees FW has received a PRLI. Driver allows FW to
finish with processing of PRLI by checking back with FW at a later time to
see if the PRLI has finished. Instead, driver failed to push forward after
re-checking PRLI completion.

Fixes: ce0ba496dc ("scsi: qla2xxx: Fix stuck login session")
Cc: stable@vger.kernel.org # 5.3
Link: https://lore.kernel.org/r/20191217220617.28084-9-hmadhani@marvell.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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-11 04:35:27 -08:00
Quinn Tran 2b27acfde9 scsi: qla2xxx: Fix mtcp dump collection failure
commit 641e0efddc upstream.

MTCP dump failed due to MB Reg 10 was picking garbage data from stack
memory.

Fixes: 81178772b6 ("[SCSI] qla2xxx: Implemetation of mctp.")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191217220617.28084-14-hmadhani@marvell.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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11 04:35:23 -08:00
Anand Lodnoor edd15b1546 scsi: megaraid_sas: Do not initiate OCR if controller is not in ready state
commit 6d7537270e upstream.

Driver initiates OCR if a DCMD command times out. But there is a deadlock
if the driver attempts to invoke another OCR before the mutex lock
(reset_mutex) is released from the previous session of OCR.

This patch takes care of the above scenario using new flag
MEGASAS_FUSION_OCR_NOT_POSSIBLE to indicate if OCR is possible.

Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1579000882-20246-9-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11 04:35:23 -08:00
Hannes Reinecke edb6590b1b scsi: fnic: do not queue commands during fwreset
[ Upstream commit 0e2209629f ]

When a link is going down the driver will be calling fnic_cleanup_io(),
which will traverse all commands and calling 'done' for each found command.
While the traversal is handled under the host_lock, calling 'done' happens
after the host_lock is being dropped.

As fnic_queuecommand_lck() is being called with the host_lock held, it
might well be that it will pick the command being selected for abortion
from the above routine and enqueue it for sending, but then 'done' is being
called on that very command from the above routine.

Which of course confuses the hell out of the scsi midlayer.

So fix this by not queueing commands when fnic_cleanup_io is active.

Link: https://lore.kernel.org/r/20200116102053.62755-1-hare@suse.de
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-05 21:22:49 +00:00
Bean Huo 7c3327816d scsi: ufs: delete redundant function ufshcd_def_desc_sizes()
[ Upstream commit 059efd847a ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-26 10:01:05 +01:00
James Smart b1b105a633 scsi: lpfc: use hdwq assigned cpu for allocation
[ Upstream commit 4583a4f66b ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-23 08:23:01 +01:00
Bart Van Assche 0ec3e3ba47 scsi: lpfc: Fix a kernel warning triggered by lpfc_get_sgl_per_hdwq()
commit 765ab6cdac upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:59 +01:00
James Smart 51a2104cc4 scsi: lpfc: Fix hdwq sgl locks and irq handling
commit a4c21acca2 upstream.

Many of the sgl-per-hdwq paths are locking with spin_lock_irq() and
spin_unlock_irq() and may unwittingly raising irq when it shouldn't. Hard
deadlocks were seen around lpfc_scsi_prep_cmnd().

Fix by converting the locks to irqsave/irqrestore.

Fixes: d79c9e9d4b ("scsi: lpfc: Support dynamic unbounded SGL lists on G7 hardware.")
Link: https://lore.kernel.org/r/20190922035906.10977-16-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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:59 +01:00
James Smart 287a465e12 scsi: lpfc: Fix list corruption detected in lpfc_put_sgl_per_hdwq
commit 35a635af54 upstream.

In lpfc_release_io_buf, an lpfc_io_buf is returned to the 'available' pool
before any associated sgl or cmd and rsp buffers are returned via their
respective 'put' routines.  If xri rebalancing occurs and an lpfc_io_buf
structure is reused quickly, there may be a race condition between release
of old and association of new resources.

Re-ordered lpfc_release_io_buf to release sgl and cmd/rsp
buffer lists before releasing the lpfc_io_buf structure for re-use.

Fixes: d79c9e9d4b ("scsi: lpfc: Support dynamic unbounded SGL lists on G7 hardware.")
Link: https://lore.kernel.org/r/20190922035906.10977-17-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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:59 +01:00
Bart Van Assche 240333d7b1 scsi: core: scsi_trace: Use get_unaligned_be*()
commit b1335f5b04 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:59 +01:00
Martin Wilck 6acefee17a scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan
commit d341e9a8f2 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:59 +01:00
Huacai Chen fdad431431 scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI
commit 45dc8f2d9c upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:59 +01:00
John Garry c98dc7e9a0 scsi: scsi_transport_sas: Fix memory leak when removing devices
commit 82ea3e0e12 upstream.

Removing a non-host rphy causes a memory leak:

root@(none)$ echo 0 > /sys/devices/platform/HISI0162:01/host0/port-0:0/expander-0:0/port-0:0:10/phy-0:0:10/sas_phy/phy-0:0:10/enable
[   79.857888] hisi_sas_v2_hw HISI0162:01: dev[7:1] is gone
root@(none)$ echo scan > /sys/kernel/debug/kmemleak
[  131.656603] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
root@(none)$ more /sys/kernel/debug/kmemleak
unreferenced object 0xffff041da5c66000 (size 256):
  comm "kworker/u128:1", pid 549, jiffies 4294898543 (age 113.728s)
  hex dump (first 32 bytes):
    00 5e c6 a5 1d 04 ff ff 01 00 00 00 00 00 00 00  .^..............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<(____ptrval____)>] kmem_cache_alloc+0x188/0x260
    [<(____ptrval____)>] bsg_setup_queue+0x48/0x1a8
    [<(____ptrval____)>] sas_rphy_add+0x108/0x2d0
    [<(____ptrval____)>] sas_probe_devices+0x168/0x208
    [<(____ptrval____)>] sas_discover_domain+0x660/0x9c8
    [<(____ptrval____)>] process_one_work+0x3f8/0x690
    [<(____ptrval____)>] worker_thread+0x70/0x6a0
    [<(____ptrval____)>] kthread+0x1b8/0x1c0
    [<(____ptrval____)>] ret_from_fork+0x10/0x18
unreferenced object 0xffff041d8c075400 (size 128):
  comm "kworker/u128:1", pid 549, jiffies 4294898543 (age 113.728s)
  hex dump (first 32 bytes):
    00 40 25 97 1d 00 ff ff 00 00 00 00 00 00 00 00  .@%.............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<(____ptrval____)>] __kmalloc_node+0x1a8/0x2c8
    [<(____ptrval____)>] blk_mq_realloc_tag_set_tags.part.70+0x48/0xd8
    [<(____ptrval____)>] blk_mq_alloc_tag_set+0x1dc/0x530
    [<(____ptrval____)>] bsg_setup_queue+0xe8/0x1a8
    [<(____ptrval____)>] sas_rphy_add+0x108/0x2d0
    [<(____ptrval____)>] sas_probe_devices+0x168/0x208
    [<(____ptrval____)>] sas_discover_domain+0x660/0x9c8
    [<(____ptrval____)>] process_one_work+0x3f8/0x690
    [<(____ptrval____)>] worker_thread+0x70/0x6a0
    [<(____ptrval____)>] kthread+0x1b8/0x1c0
    [<(____ptrval____)>] ret_from_fork+0x10/0x18
unreferenced object 0xffff041da5c65e00 (size 256):
  comm "kworker/u128:1", pid 549, jiffies 4294898543 (age 113.728s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<(____ptrval____)>] __kmalloc_node+0x1a8/0x2c8
    [<(____ptrval____)>] blk_mq_alloc_tag_set+0x254/0x530
    [<(____ptrval____)>] bsg_setup_queue+0xe8/0x1a8
    [<(____ptrval____)>] sas_rphy_add+0x108/0x2d0
    [<(____ptrval____)>] sas_probe_devices+0x168/0x208
    [<(____ptrval____)>] sas_discover_domain+0x660/0x9c8
    [<(____ptrval____)>] process_one_work+0x3f8/0x690
    [<(____ptrval____)>] worker_thread+0x70/0x6a0
    [<(____ptrval____)>] kthread+0x1b8/0x1c0
    [<(____ptrval____)>] ret_from_fork+0x10/0x18
root@(none)$

It turns out that we don't clean up the request queue fully for bsg
devices, as the blk mq tags for the request queue are not freed.

Fix by doing the queue removal in one place - in sas_rphy_remove() -
instead of unregistering the queue in sas_rphy_remove() and finally
cleaning up the queue in calling blk_cleanup_queue() from
sas_end_device_release() or sas_expander_release().

Function bsg_remove_queue() can handle a NULL pointer q, so remove the
precheck in sas_rphy_remove().

Fixes: 651a013649 ("scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough")
Link: https://lore.kernel.org/r/1574242755-94156-1-git-send-email-john.garry@huawei.com
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:58 +01:00
Xiang Chen 83d2e42a2d scsi: hisi_sas: Return directly if init hardware failed
commit 547fde8b5a upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:58 +01:00
James Smart e9866d5ed2 scsi: lpfc: fix: Coverity: lpfc_get_scsi_buf_s3(): Null pointer dereferences
commit 6f23f8c5c9 upstream.

Coverity reported the following:
2020-01-23 08:22:58 +01:00
Pan Bian be4e660bca scsi: bnx2i: fix potential use after free
commit 29d28f2b8d upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:58 +01:00
Pan Bian 43c5bca0c4 scsi: qla4xxx: fix double free bug
commit 3fe3d2428b upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:58 +01:00
Xiang Chen 1331942cbc scsi: hisi_sas: Set the BIST init value before enabling BIST
commit 65a3b8bd56 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:58 +01:00
Xiang Chen 1397d34930 scsi: hisi_sas: Don't create debugfs dump folder twice
commit 35160421b6 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:58 +01:00
Dan Carpenter 37a15afafb scsi: esas2r: unlock on error in esas2r_nvram_read_direct()
commit 906ca6353a upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:58 +01:00
Long Li f6e4244f8b scsi: storvsc: Correctly set number of hardware queues for IDE disk
commit 7b571c19d4 upstream.

Commit 0ed8810276 ("scsi: storvsc: setup 1:1 mapping between hardware
queue and CPU queue") introduced a regression for disks attached to
IDE. For these disks the host VSP only offers one VMBUS channel. Setting
multiple queues can overload the VMBUS channel and result in performance
drop for high queue depth workload on system with large number of CPUs.

Fix it by leaving the number of hardware queues to 1 (default value) for
IDE disks.

Fixes: 0ed8810276 ("scsi: storvsc: setup 1:1 mapping between hardware queue and CPU queue")
Link: https://lore.kernel.org/r/1578960516-108228-1-git-send-email-longli@linuxonhyperv.com
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:38 +01:00
Arnd Bergmann 86ee2a91cb scsi: fnic: fix invalid stack access
commit 42ec15ceae upstream.

gcc -O3 warns that some local variables are not properly initialized:

drivers/scsi/fnic/vnic_dev.c: In function 'fnic_dev_hang_notify':
drivers/scsi/fnic/vnic_dev.c:511:16: error: 'a0' is used uninitialized in this function [-Werror=uninitialized]
  vdev->args[0] = *a0;
  ~~~~~~~~~~~~~~^~~~~
drivers/scsi/fnic/vnic_dev.c:691:6: note: 'a0' was declared here
  u64 a0, a1;
      ^~
drivers/scsi/fnic/vnic_dev.c:512:16: error: 'a1' is used uninitialized in this function [-Werror=uninitialized]
  vdev->args[1] = *a1;
  ~~~~~~~~~~~~~~^~~~~
drivers/scsi/fnic/vnic_dev.c:691:10: note: 'a1' was declared here
  u64 a0, a1;
          ^~
drivers/scsi/fnic/vnic_dev.c: In function 'fnic_dev_mac_addr':
drivers/scsi/fnic/vnic_dev.c:512:16: error: 'a1' is used uninitialized in this function [-Werror=uninitialized]
  vdev->args[1] = *a1;
  ~~~~~~~~~~~~~~^~~~~
drivers/scsi/fnic/vnic_dev.c:698:10: note: 'a1' was declared here
  u64 a0, a1;
          ^~

Apparently the code relies on the local variables occupying adjacent memory
locations in the same order, but this is of course not guaranteed.

Use an array of two u64 variables where needed to make it work correctly.

I suspect there is also an endianness bug here, but have not digged in deep
enough to be sure.

Fixes: 5df6d737dd ("[SCSI] fnic: Add new Cisco PCI-Express FCoE HBA")
Fixes: mmtom ("init/Kconfig: enable -O3 for all arches")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200107201602.4096790-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:35 +01:00
Varun Prakash 2921fd9b30 scsi: libcxgbi: fix NULL pointer dereference in cxgbi_device_destroy()
[ Upstream commit 71482fde70 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-17 19:49:03 +01:00
Arnd Bergmann bdd308d667 scsi: sd: enable compat ioctls for sed-opal
commit 142b2ac82e upstream.

The sed_ioctl() function is written to be compatible between
32-bit and 64-bit processes, however compat mode is only
wired up for nvme, not for sd.

Add the missing call to sed_ioctl() in sd_compat_ioctl().

Fixes: d80210f25f ("sd: add support for TCG OPAL self encrypting disks")
Cc: linux-scsi@vger.kernel.org
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-17 19:48:51 +01:00
Can Guo 7d261f5fda scsi: ufs: Give an unique ID to each ufs-bsg
commit 8c850a0296 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-17 19:48:45 +01:00
Xiang Chen 63154ee1cd scsi: sd: Clear sdkp->protection_type if disk is reformatted without PI
commit 465f4edaec upstream.

If an attached disk with protection information enabled is reformatted
to Type 0 the revalidation code does not clear the original protection
type and subsequent accesses will keep setting RDPROTECT/WRPROTECT.

Set the protection type to 0 if the disk reports PROT_EN=0 in READ
CAPACITY(16).

[mkp: commit desc]

Fixes: fe542396da ("[SCSI] sd: Ensure we correctly disable devices with unknown protection type")
Link: https://lore.kernel.org/r/1578532344-101668-1-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-17 19:48:42 +01:00
Dan Carpenter eba97de9f8 scsi: mpt3sas: Fix double free in attach error handling
commit ee560e7bba upstream.

The caller also calls _base_release_memory_pools() on error so it leads to
a number of double frees:

drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->chain_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->hpr_lookup' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->internal_lookup' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->pcie_sgl_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_free_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_post_free_array_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_post_free_dma_pool' double freed
drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->sense_dma_pool' double freed

Fixes: 74522a92bb ("scsi: mpt3sas: Optimize I/O memory consumption in driver.")
Link: https://lore.kernel.org/r/20191203093652.gyntgvnkw2udatyc@kili.mountain
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-17 19:48:21 +01:00
Navid Emamdoost 448fe0b67c scsi: bfa: release allocated memory in case of error
commit 0e62395da2 upstream.

In bfad_im_get_stats if bfa_port_get_stats fails, allocated memory needs to
be released.

Link: https://lore.kernel.org/r/20190910234417.22151-1-navid.emamdoost@gmail.com
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-14 20:08:37 +01:00
James Smart 858f090696 scsi: lpfc: Fix rpi release when deleting vport
commit 97acd0019d upstream.

A prior use-after-free mailbox fix solved it's problem by null'ing a ndlp
pointer.  However, further testing has shown that this change causes a
later state change to occasionally be skipped, which results in a reference
count never being decremented thus the rpi is never released, which causes
a vport delete to never succeed.

Revise the fix in the prior patch to no longer null the ndlp. Instead the
RELEASE_RPI flag is set which will drive the release of the rpi.

Given the new code was added at a deep indentation level, refactor the code
block using a new routine that avoids the indentation issues.

Fixes: 	9b16406864 ("scsi: lpfc: Fix use-after-free mailbox cmd completion")
Link: https://lore.kernel.org/r/20190922035906.10977-6-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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-09 10:20:01 +01:00
Bo Wu d45a917138 scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
[ Upstream commit bba340c79b ]

In iscsi_if_rx func, after receiving one request through
iscsi_if_recv_msg func, iscsi_if_send_reply will be called to try to
reply to the request in a do-while loop.  If the iscsi_if_send_reply
function keeps returning -EAGAIN, a deadlock will occur.

For example, a client only send msg without calling recvmsg func, then
it will result in the watchdog soft lockup.  The details are given as
follows:

	sock_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ISCSI);
	retval = bind(sock_fd, (struct sock addr*) & src_addr, sizeof(src_addr);
	while (1) {
		state_msg = sendmsg(sock_fd, &msg, 0);
		//Note: recvmsg(sock_fd, &msg, 0) is not processed here.
	}
	close(sock_fd);

watchdog: BUG: soft lockup - CPU#7 stuck for 22s! [netlink_test:253305] Sample time: 4000897528 ns(HZ: 250) Sample stat:
curr: user: 675503481560, nice: 321724050, sys: 448689506750, idle: 4654054240530, iowait: 40885550700, irq: 14161174020, softirq: 8104324140, st: 0
deta: user: 0, nice: 0, sys: 3998210100, idle: 0, iowait: 0, irq: 1547170, softirq: 242870, st: 0 Sample softirq:
         TIMER:        992
         SCHED:          8
Sample irqstat:
         irq    2: delta       1003, curr:    3103802, arch_timer
CPU: 7 PID: 253305 Comm: netlink_test Kdump: loaded Tainted: G           OE
Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
pstate: 40400005 (nZcv daif +PAN -UAO)
pc : __alloc_skb+0x104/0x1b0
lr : __alloc_skb+0x9c/0x1b0
sp : ffff000033603a30
x29: ffff000033603a30 x28: 00000000000002dd
x27: ffff800b34ced810 x26: ffff800ba7569f00
x25: 00000000ffffffff x24: 0000000000000000
x23: ffff800f7c43f600 x22: 0000000000480020
x21: ffff0000091d9000 x20: ffff800b34eff200
x19: ffff800ba7569f00 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000
x15: 0000000000000000 x14: 0001000101000100
x13: 0000000101010000 x12: 0101000001010100
x11: 0001010101010001 x10: 00000000000002dd
x9 : ffff000033603d58 x8 : ffff800b34eff400
x7 : ffff800ba7569200 x6 : ffff800b34eff400
x5 : 0000000000000000 x4 : 00000000ffffffff
x3 : 0000000000000000 x2 : 0000000000000001
x1 : ffff800b34eff2c0 x0 : 0000000000000300 Call trace:
__alloc_skb+0x104/0x1b0
iscsi_if_rx+0x144/0x12bc [scsi_transport_iscsi]
netlink_unicast+0x1e0/0x258
netlink_sendmsg+0x310/0x378
sock_sendmsg+0x4c/0x70
sock_write_iter+0x90/0xf0
__vfs_write+0x11c/0x190
vfs_write+0xac/0x1c0
ksys_write+0x6c/0xd8
__arm64_sys_write+0x24/0x30
el0_svc_common+0x78/0x130
el0_svc_handler+0x38/0x78
el0_svc+0x8/0xc

Link: https://lore.kernel.org/r/EDBAAA0BBBA2AC4E9C8B6B81DEEE1D6915E3D4D2@dggeml505-mbx.china.huawei.com
Signed-off-by: Bo Wu <wubo40@huawei.com>
Reviewed-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:46 +01:00
Jason Yan 55c89290c7 scsi: libsas: stop discovering if oob mode is disconnected
[ Upstream commit f70267f379 ]

The discovering of sas port is driven by workqueue in libsas. When libsas
is processing port events or phy events in workqueue, new events may rise
up and change the state of some structures such as asd_sas_phy.  This may
cause some problems such as follows:

==>thread 1                       ==>thread 2

                                  ==>phy up
                                  ==>phy_up_v3_hw()
                                    ==>oob_mode = SATA_OOB_MODE;
                                  ==>phy down quickly
                                  ==>hisi_sas_phy_down()
                                    ==>sas_ha->notify_phy_event()
                                    ==>sas_phy_disconnected()
                                      ==>oob_mode = OOB_NOT_CONNECTED
==>workqueue wakeup
==>sas_form_port()
  ==>sas_discover_domain()
    ==>sas_get_port_device()
      ==>oob_mode is OOB_NOT_CONNECTED and device
         is wrongly taken as expander

This at last lead to the panic when libsas trying to issue a command to
discover the device.

[183047.614035] Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000058
[183047.622896] Mem abort info:
[183047.625762]   ESR = 0x96000004
[183047.628893]   Exception class = DABT (current EL), IL = 32 bits
[183047.634888]   SET = 0, FnV = 0
[183047.638015]   EA = 0, S1PTW = 0
[183047.641232] Data abort info:
[183047.644189]   ISV = 0, ISS = 0x00000004
[183047.648100]   CM = 0, WnR = 0
[183047.651145] user pgtable: 4k pages, 48-bit VAs, pgdp =
00000000b7df67be
[183047.657834] [0000000000000058] pgd=0000000000000000
[183047.662789] Internal error: Oops: 96000004 [#1] SMP
[183047.667740] Process kworker/u16:2 (pid: 31291, stack limit =
0x00000000417c4974)
[183047.675208] CPU: 0 PID: 3291 Comm: kworker/u16:2 Tainted: G
W  OE 4.19.36-vhulk1907.1.0.h410.eulerosv2r8.aarch64 #1
[183047.687015] Hardware name: N/A N/A/Kunpeng Desktop Board D920S10,
BIOS 0.15 10/22/2019
[183047.695007] Workqueue: 0000:74:02.0_disco_q sas_discover_domain
[183047.700999] pstate: 20c00009 (nzCv daif +PAN +UAO)
[183047.705864] pc : prep_ata_v3_hw+0xf8/0x230 [hisi_sas_v3_hw]
[183047.711510] lr : prep_ata_v3_hw+0xb0/0x230 [hisi_sas_v3_hw]
[183047.717153] sp : ffff00000f28ba60
[183047.720541] x29: ffff00000f28ba60 x28: ffff8026852d7228
[183047.725925] x27: ffff8027dba3e0a8 x26: ffff8027c05fc200
[183047.731310] x25: 0000000000000000 x24: ffff8026bafa8dc0
[183047.736695] x23: ffff8027c05fc218 x22: ffff8026852d7228
[183047.742079] x21: ffff80007c2f2940 x20: ffff8027c05fc200
[183047.747464] x19: 0000000000f80800 x18: 0000000000000010
[183047.752848] x17: 0000000000000000 x16: 0000000000000000
[183047.758232] x15: ffff000089a5a4ff x14: 0000000000000005
[183047.763617] x13: ffff000009a5a50e x12: ffff8026bafa1e20
[183047.769001] x11: ffff0000087453b8 x10: ffff00000f28b870
[183047.774385] x9 : 0000000000000000 x8 : ffff80007e58f9b0
[183047.779770] x7 : 0000000000000000 x6 : 000000000000003f
[183047.785154] x5 : 0000000000000040 x4 : ffffffffffffffe0
[183047.790538] x3 : 00000000000000f8 x2 : 0000000002000007
[183047.795922] x1 : 0000000000000008 x0 : 0000000000000000
[183047.801307] Call trace:
[183047.803827]  prep_ata_v3_hw+0xf8/0x230 [hisi_sas_v3_hw]
[183047.809127]  hisi_sas_task_prep+0x750/0x888 [hisi_sas_main]
[183047.814773]  hisi_sas_task_exec.isra.7+0x88/0x1f0 [hisi_sas_main]
[183047.820939]  hisi_sas_queue_command+0x28/0x38 [hisi_sas_main]
[183047.826757]  smp_execute_task_sg+0xec/0x218
[183047.831013]  smp_execute_task+0x74/0xa0
[183047.834921]  sas_discover_expander.part.7+0x9c/0x5f8
[183047.839959]  sas_discover_root_expander+0x90/0x160
[183047.844822]  sas_discover_domain+0x1b8/0x1e8
[183047.849164]  process_one_work+0x1b4/0x3f8
[183047.853246]  worker_thread+0x54/0x470
[183047.856981]  kthread+0x134/0x138
[183047.860283]  ret_from_fork+0x10/0x18
[183047.863931] Code: f9407a80 528000e2 39409281 72a04002 (b9405800)
[183047.870097] kernel fault(0x1) notification starting on CPU 0
[183047.875828] kernel fault(0x1) notification finished on CPU 0
[183047.881559] Modules linked in: unibsp(OE) hns3(OE) hclge(OE)
hnae3(OE) mem_drv(OE) hisi_sas_v3_hw(OE) hisi_sas_main(OE)
[183047.892418] ---[ end trace 4cc26083fc11b783  ]---
[183047.897107] Kernel panic - not syncing: Fatal exception
[183047.902403] kernel fault(0x5) notification starting on CPU 0
[183047.908134] kernel fault(0x5) notification finished on CPU 0
[183047.913865] SMP: stopping secondary CPUs
[183047.917861] Kernel Offset: disabled
[183047.921422] CPU features: 0x2,a2a00a38
[183047.925243] Memory Limit: none
[183047.928372] kernel reboot(0x2) notification starting on CPU 0
[183047.934190] kernel reboot(0x2) notification finished on CPU 0
[183047.940008] ---[ end Kernel panic - not syncing: Fatal exception
]---

Fixes: 2908d778ab ("[SCSI] aic94xx: new driver")
Link: https://lore.kernel.org/r/20191206011118.46909-1-yanaijie@huawei.com
Reported-by: Gao Chuan <gaochuan4@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:46 +01:00
Dan Carpenter 505eead5e5 scsi: iscsi: qla4xxx: fix double free in probe
[ Upstream commit fee92f2577 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:46 +01:00
Roman Bolshakov 68204b46da scsi: qla2xxx: Ignore PORT UPDATE after N2N PLOGI
[ Upstream commit af22f0c7b0 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:46 +01:00
Roman Bolshakov 7497032b17 scsi: qla2xxx: Don't defer relogin unconditonally
[ Upstream commit dabc5ec915 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:45 +01:00
Roman Bolshakov 944e01086e scsi: qla2xxx: Send Notify ACK after N2N PLOGI
[ Upstream commit 5e6b01d84b ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:45 +01:00
Roman Bolshakov 610ab9d567 scsi: qla2xxx: Configure local loop for N2N target
[ Upstream commit fd1de5830a ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:45 +01:00
Roman Bolshakov 97345ea931 scsi: qla2xxx: Fix PLOGI payload and ELS IOCB dump length
[ Upstream commit 0334cdea1f ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:45 +01:00
Roman Bolshakov 7e56964da8 scsi: qla2xxx: Don't call qlt_async_event twice
[ Upstream commit 2c2f4bed9b ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:44 +01:00
Roman Bolshakov 8ad67d0ec1 scsi: qla2xxx: Drop superfluous INIT_WORK of del_work
[ Upstream commit 600954e6f2 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:44 +01:00
Quinn Tran 99a1bdf6ae scsi: qla2xxx: Use explicit LOGO in target mode
[ Upstream commit 86196a8fa8 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:44 +01:00
Bo Wu f327fb083c scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func
[ Upstream commit 9a1b0b9a6d ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:44 +01:00
James Smart 6b49a5a9eb nvme_fc: add module to ops template to allow module references
[ Upstream commit 863fbae929 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-09 10:19:41 +01:00
Anatol Pomazau 692b104e36 scsi: iscsi: Don't send data to unbound connection
[ Upstream commit 238191d65d ]

If a faulty initiator fails to bind the socket to the iSCSI connection
before emitting a command, for instance, a subsequent send_pdu, it will
crash the kernel due to a null pointer dereference in sock_sendmsg(), as
shown in the log below.  This patch makes sure the bind succeeded before
trying to use the socket.

BUG: kernel NULL pointer dereference, address: 0000000000000018
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.4.0-rc2.iscsi+ #13
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[   24.158246] Workqueue: iscsi_q_0 iscsi_xmitworker
[   24.158883] RIP: 0010:apparmor_socket_sendmsg+0x5/0x20
[...]
[   24.161739] RSP: 0018:ffffab6440043ca0 EFLAGS: 00010282
[   24.162400] RAX: ffffffff891c1c00 RBX: ffffffff89d53968 RCX: 0000000000000001
[   24.163253] RDX: 0000000000000030 RSI: ffffab6440043d00 RDI: 0000000000000000
[   24.164104] RBP: 0000000000000030 R08: 0000000000000030 R09: 0000000000000030
[   24.165166] R10: ffffffff893e66a0 R11: 0000000000000018 R12: ffffab6440043d00
[   24.166038] R13: 0000000000000000 R14: 0000000000000000 R15: ffff9d5575a62e90
[   24.166919] FS:  0000000000000000(0000) GS:ffff9d557db80000(0000) knlGS:0000000000000000
[   24.167890] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.168587] CR2: 0000000000000018 CR3: 000000007a838000 CR4: 00000000000006e0
[   24.169451] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.170320] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.171214] Call Trace:
[   24.171537]  security_socket_sendmsg+0x3a/0x50
[   24.172079]  sock_sendmsg+0x16/0x60
[   24.172506]  iscsi_sw_tcp_xmit_segment+0x77/0x120
[   24.173076]  iscsi_sw_tcp_pdu_xmit+0x58/0x170
[   24.173604]  ? iscsi_dbg_trace+0x63/0x80
[   24.174087]  iscsi_tcp_task_xmit+0x101/0x280
[   24.174666]  iscsi_xmit_task+0x83/0x110
[   24.175206]  iscsi_xmitworker+0x57/0x380
[   24.175757]  ? __schedule+0x2a2/0x700
[   24.176273]  process_one_work+0x1b5/0x360
[   24.176837]  worker_thread+0x50/0x3c0
[   24.177353]  kthread+0xf9/0x130
[   24.177799]  ? process_one_work+0x360/0x360
[   24.178401]  ? kthread_park+0x90/0x90
[   24.178915]  ret_from_fork+0x35/0x40
[   24.179421] Modules linked in:
[   24.179856] CR2: 0000000000000018
[   24.180327] ---[ end trace b4b7674b6df5f480 ]---

Signed-off-by: Anatol Pomazau <anatol@google.com>
Co-developed-by: Frank Mayhar <fmayhar@google.com>
Signed-off-by: Frank Mayhar <fmayhar@google.com>
Co-developed-by: Bharath Ravi <rbharath@google.com>
Signed-off-by: Bharath Ravi <rbharath@google.com>
Co-developed-by: Khazhimsel Kumykov <khazhy@google.com>
Signed-off-by: Khazhimsel Kumykov <khazhy@google.com>
Co-developed-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-04 19:18:17 +01:00
Can Guo affadd78b1 scsi: ufs: Fix up auto hibern8 enablement
[ Upstream commit 71d848b8d9 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-04 19:18:17 +01:00
Finn Thain 026401a594 scsi: NCR5380: Add disconnect_mask module parameter
[ Upstream commit 0b7a223552 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-04 19:18:16 +01:00