24236 Commits

Author SHA1 Message Date
Nilesh Javali
b496953dd0 scsi: qla2xxx: Fix smatch warn for qla_init_iocb_limit()
Fix indentation for warning reported by smatch:

drivers/scsi/qla2xxx/qla_init.c:4199 qla_init_iocb_limit() warn: inconsistent indenting

Fixes: efa74a62aaa2 ("scsi: qla2xxx: Adjust IOCB resource on qpair create")
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230821130045.34850-8-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:45:15 -04:00
Manish Rangankar
e9105c4b7a scsi: qla2xxx: Remove unsupported ql2xenabledif option
User accidently passed module parameter ql2xenabledif=1 which is
unsupported. However, driver still initialized which lead to guard tag
errors during device discovery.

Remove unsupported ql2xenabledif=1 option and validate the user input.

Cc: stable@vger.kernel.org
Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230821130045.34850-7-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:45:15 -04:00
Quinn Tran
0ba0b018f9 scsi: qla2xxx: Error code did not return to upper layer
TMF was returned with an error code. The error code was not preserved to be
returned to upper layer. Instead, the error code from the Marker was
returned.

Preserve error code from TMF and return it to upper layer.

Cc: stable@vger.kernel.org
Fixes: da7c21b72aa8 ("scsi: qla2xxx: Fix command flush during TMF")
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230821130045.34850-6-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:45:14 -04:00
Bikash Hazarika
cd248a95f8 scsi: qla2xxx: Add logs for SFP temperature monitoring
Add logs for SFP Temperature Alert async event to check if laser is
enabled/disabled.

Signed-off-by: Bikash Hazarika <bhazarika@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230821130045.34850-5-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:45:14 -04:00
Quinn Tran
e370b64c7d scsi: qla2xxx: Fix firmware resource tracking
The storage was not draining I/Os and the work load was not spread out
across different CPUs evenly. This led to firmware resource counters
getting overrun on the busy CPU. This overrun prevented error recovery from
happening in a timely manner.

By switching the counter to atomic, it allows the count to be little more
accurate to prevent the overrun.

Cc: stable@vger.kernel.org
Fixes: da7c21b72aa8 ("scsi: qla2xxx: Fix command flush during TMF")
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230821130045.34850-4-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:45:14 -04:00
Quinn Tran
6d0b65569c scsi: qla2xxx: Flush mailbox commands on chip reset
Fix race condition between Interrupt thread and Chip reset thread in trying
to flush the same mailbox. With the race condition, the "ha->mbx_intr_comp"
will get an extra complete() call. The extra complete call create erroneous
mailbox timeout condition when the next mailbox is sent where the mailbox
call does not wait for interrupt to arrive. Instead, it advances without
waiting.

Add lock protection around the check for mailbox completion.

Cc: stable@vger.kernel.org
Fixes: b2000805a975 ("scsi: qla2xxx: Flush mailbox commands on chip reset")
Signed-off-by: Quinn Tran <quinn.tran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230821130045.34850-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:45:14 -04:00
Manish Rangankar
875386b988 scsi: qla2xxx: Add Unsolicited LS Request and Response Support for NVMe
Introduce infrastructure in the driver to support the processing of
unsolicited LS (Link Service) requests. This will involve the utilization
of a new pass-up of unsolicited FC-NVMe request IOCB interface. Unsolicited
requests will be submitted to the NVMe transport layer through
nvme_fc_rcv_ls_req(). Any received LS responses, which are sent using
xmt_ls_rsp(), will be forwarded to the firmware through the existing
Pass-Through IOCB interface, responsible for sending FC-NVMe Link Service
requests and responses.

Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230821130045.34850-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:45:14 -04:00
Quinn Tran
ae25f65a35 scsi: qla2xxx: Allow 32-byte CDBs
System crashes when a 32-byte CDB was sent to a non T10 PI disk:

[  177.143279]  ? qla2xxx_dif_start_scsi_mq+0xcd8/0xce0 [qla2xxx]
[  177.149165]  ? internal_add_timer+0x42/0x70
[  177.153372]  qla2xxx_mqueuecommand+0x207/0x2b0 [qla2xxx]
[  177.158730]  scsi_queue_rq+0x2b7/0xc00
[  177.162501]  blk_mq_dispatch_rq_list+0x3ea/0x7e0

Current code attempted to use CRC IOCB to send the command but failed.
Instead, type 6 IOCB should be used to send the I/O.

Clone existing type 6 IOCB code with addition of MQ support to allow
32-byte CDBs to go through.

Signed-off-by: Quinn Tran <qutran@marvell.com>
Cc: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230817063132.21900-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:37:42 -04:00
Quinn Tran
efeda3bf91 scsi: qla2xxx: Move resource to allow code reuse
dsd_list contains a list of dsd buffer resources allocated during traffic
time. It resides in the qla_hw_data location where some of the code is not
reusable.

Move this list to qpair to allow reuse by either single queue or multi
queue adapter / code.

Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230817063132.21900-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:37:42 -04:00
Andy Shevchenko
19d7102a95 scsi: lpfc: Do not abuse UUID APIs and LPFC_COMPRESS_VMID_SIZE
The lpfc_vmid_host_uuid is not defined as uuid_t and its usage is not the
same as for uuid_t operations (like exporting or importing).  Hence replace
call to uuid_is_null() by respective memchr_inv() without abusing casting.

With that, replace LPFC_COMPRESS_VMID_SIZE with plain number and respective
sizeof() to make code robust to changes in the future, if any.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230818155452.875781-1-andriy.shevchenko@linux.intel.com
Reviewed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:13:57 -04:00
Yue Haibing
04aff456af scsi: pm8001: Remove unused declarations
Commit 4fcf812ca392 ("[SCSI] libsas: export sas_alloc_task()") removed
these implementations but not the declarations.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20230818124700.49724-1-yuehaibing@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:13:57 -04:00
Chengfeng Ye
1a19755519 scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock
There is a long call chain that &fip->ctlr_lock is acquired by isr
fnic_isr_msix_wq_copy() under hard IRQ context. Thus other process context
code acquiring the lock should disable IRQ, otherwise deadlock could happen
if the IRQ preempts the execution while the lock is held in process context
on the same CPU.

[ISR]
fnic_isr_msix_wq_copy()
 -> fnic_wq_copy_cmpl_handler()
 -> fnic_fcpio_cmpl_handler()
 -> fnic_fcpio_flogi_reg_cmpl_handler()
 -> fnic_flush_tx()
 -> fnic_send_frame()
 -> fcoe_ctlr_els_send()
 -> spin_lock_bh(&fip->ctlr_lock)

[Process Context]
1. fcoe_ctlr_timer_work()
 -> fcoe_ctlr_flogi_send()
 -> spin_lock_bh(&fip->ctlr_lock)

2. fcoe_ctlr_recv_work()
 -> fcoe_ctlr_recv_handler()
 -> fcoe_ctlr_recv_els()
 -> fcoe_ctlr_announce()
 -> spin_lock_bh(&fip->ctlr_lock)

3. fcoe_ctlr_recv_work()
 -> fcoe_ctlr_recv_handler()
 -> fcoe_ctlr_recv_els()
 -> fcoe_ctlr_flogi_retry()
 -> spin_lock_bh(&fip->ctlr_lock)

4. -> fcoe_xmit()
 -> fcoe_ctlr_els_send()
 -> spin_lock_bh(&fip->ctlr_lock)

spin_lock_bh() is not enough since fnic_isr_msix_wq_copy() is a
hardirq.

These flaws were found by an experimental static analysis tool I am
developing for irq-related deadlock.

The patch fix the potential deadlocks by spin_lock_irqsave() to disable
hard irq.

Fixes: 794d98e77f59 ("[SCSI] libfcoe: retry rejected FLOGI to another FCF if possible")
Signed-off-by: Chengfeng Ye <dg573847474@gmail.com>
Link: https://lore.kernel.org/r/20230817074708.7509-1-dg573847474@gmail.com
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:13:56 -04:00
Rajeshwar R Shinde
2d6f70fe17 scsi: elx: sli4: Remove code duplication
In the function sli_xmit_bls_rsp64_wqe(), the 'if' and 'else' conditions
evaluates the same expression and give the same output. Also, params->s_id
shall not be equal to U32_MAX. Remove the unused code.

This fixes coccinelle warning such as:
drivers/scsi/elx/libefc_sli/sli4.c:2320:2-4: WARNING: possible
condition with no effect (if == else)

Signed-off-by: Rajeshwar R Shinde <coolrrsh@gmail.com>
Link: https://lore.kernel.org/r/20230817114301.17601-1-coolrrsh@gmail.com
Reviewed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:13:56 -04:00
Gustavo A. R. Silva
56a4d69a26 scsi: bfa: Replace one-element array with flexible-array member in struct fc_rscn_pl_s
One-element and zero-length arrays are deprecated. So, replace one-element
array in struct fc_rscn_pl_s with flexible-array member.

This results in no differences in binary output.

Link: https://github.com/KSPP/linux/issues/339
Signed-off-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/ZN0VTpDBOSVHGayb@work
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:13:56 -04:00
Yue Haibing
1e4474c845 scsi: qla2xxx: Remove unused declarations
These declarations are not used anymore, remove them.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20230816130842.16684-1-yuehaibing@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:13:56 -04:00
Zheng Zengkai
5d344c5eb4 scsi: pmcraid: Use pci_dev_id() to simplify the code
PCI core API pci_dev_id() can be used to get the BDF number for a PCI
device. We don't need to compose it manually. Use pci_dev_id() to simplify
the code a little bit.

Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Link: https://lore.kernel.org/r/20230811111310.32364-1-zhengzengkai@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:13:56 -04:00
Igor Pylypiv
5454329595 scsi: pm80xx: Set RETFIS when requested by libsas
By default PM80xx HBAs return FIS only when a drive reports an error.
The RETFIS bit forces the controller to populate FIS even when a drive
reports no error.

Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Link: https://lore.kernel.org/r/20230819213040.1101044-3-ipylypiv@google.com
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:11:41 -04:00
Igor Pylypiv
72875018f6 scsi: libsas: Add return_fis_on_success to sas_ata_task
Set return_fis_on_success when libata requests result taskfile.

For Command Duration Limits policy 0xD (command completes without
an error) libata needs FIS in order to detect the ATA_SENSE bit and
read the Sense Data for Successful NCQ Commands log (0Fh).

Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Link: https://lore.kernel.org/r/20230819213040.1101044-2-ipylypiv@google.com
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 17:11:41 -04:00
Jialin Zhang
bb1459cb84 scsi: megaraid: Use pci_dev_id() to simplify the code
PCI core API pci_dev_id() can be used to get the BDF number for a PCI
device. We don't need to compose it manually. Use pci_dev_id() to simplify
the code a little bit.

Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Link: https://lore.kernel.org/r/20230815025419.3523236-4-zhangjialin11@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:47:44 -04:00
Jialin Zhang
a46421fdf7 scsi: megaraid_sas: Use pci_dev_id() to simplify the code
PCI core API pci_dev_id() can be used to get the BDF number for a PCI
device. We don't need to compose it manually. Use pci_dev_id() to simplify
the code a little bit.

Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Link: https://lore.kernel.org/r/20230815025419.3523236-3-zhangjialin11@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:47:44 -04:00
Jialin Zhang
48e590218d scsi: mvumi: Use pci_dev_id() to simplify the code
PCI core API pci_dev_id() can be used to get the BDF number for a PCI
device. We don't need to compose it mannally. Use pci_dev_id() to simplify
the code a little bit.

Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Link: https://lore.kernel.org/r/20230815025419.3523236-2-zhangjialin11@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:47:44 -04:00
Tony Battersby
62ec209209 scsi: core: Use 32-bit hostnum in scsi_host_lookup()
Change scsi_host_lookup() hostnum argument type from unsigned short to
unsigned int to match the type used everywhere else.

Fixes: 6d49f63b415c ("[SCSI] Make host_no an unsigned int")
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Link: https://lore.kernel.org/r/a02497e7-c12b-ef15-47fc-3f0a0b00ffce@cybernetics.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:42:03 -04:00
Artem Chernyshev
9a23ed57ab scsi: isci: Return result of sas_register_ha()
To properly manage possible failure of sas_register_ha() in
isci_register_sas_ha(), return its result instead of zero

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Link: https://lore.kernel.org/r/20230813202336.240874-1-artem.chernyshev@red-soft.ru
Reviewed-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:39:30 -04:00
Arnd Bergmann
bfaa4a0ce1 scsi: gvp11: Remove unused gvp11_setup() function
This function has no declaration, which causes a warning:

drivers/scsi/gvp11.c:53:6: error: no previous prototype for 'gvp11_setup' [-Werror=missing-prototypes]

Since there is also no caller, just remove the function.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230810141947.1236730-12-arnd@kernel.org
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com> # RISC-V
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:37:11 -04:00
Arnd Bergmann
71cc486335 scsi: qlogicpti: Mark qlogicpti_info() static
The qlogicpti_info() function is only used in this file and should be
static to avoid a warning:

drivers/scsi/qlogicpti.c:846:13: error: no previous prototype for 'qlogicpti_info' [-Werror=missing-prototypes]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230810141947.1236730-8-arnd@kernel.org
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com> # RISC-V
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:37:11 -04:00
Alex Henrie
68a4f84a17 scsi: ppa: Add a module parameter for the transfer mode
I have an Iomega Z100P2 zip drive, but it does not work with my StarTech
PEX1P2 AX99100 PCIe parallel port, which evidently does not support 16-bit
or 32-bit EPP. Currently the only way to tell the PPA driver to use 8-bit
EPP is to write 'mode=3' to /proc/scsi/ppa/*, but the driver doesn't
actually distinguish between the three EPP modes and still tries to use
16-bit or 32-bit EPP. And even if writing to that file did make the driver
use 8-bit EPP, it still wouldn't do me any good because by the time that
file exists, the drive has already failed to initialize.

Add a new parameter /sys/module/ppa/mode to set the transfer mode before
initializing the drive. This parameter replaces the use of
CONFIG_SCSI_IZIP_EPP16 in the PPA driver.

At the same time, default to 8-bit EPP. 16-bit and 32-bit EPP are not
necessary for the drive to function, nor are they part of the IEEE 1284
standard, so the driver should not assume that they are available.

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Link: https://lore.kernel.org/r/20230807155856.362864-2-alexhenrie24@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:32:40 -04:00
Alex Henrie
b68442ebda scsi: ppa: Fix compilation with PPA_DEBUG=1
Fix a regression introduced in February 2003 in Linux 2.5.61 by a patch
from Alan Cox titled "fix ppa for new scsi".[1]

Link: https://lore.kernel.org/lkml/E18jn1B-0005gQ-00@the-village.bc.nu/
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Link: https://lore.kernel.org/r/20230807155856.362864-1-alexhenrie24@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:32:40 -04:00
Xiang Yang
e9b525b6cc scsi: arcmsr: Add __init and __exit for arcmsr_module_{init,exit}()
Add __init and __exit for arcmsr_module_{init,exit}().

Signed-off-by: Xiang Yang <xiangyang3@huawei.com>
Link: https://lore.kernel.org/r/20230804022913.1917023-1-xiangyang3@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:27:10 -04:00
Yue Haibing
a905b5cddc scsi: core: Remove unused extern declarations
These functions have never been implemented since the beginning of git
history.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20230809142107.42756-1-yuehaibing@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:23:41 -04:00
Yue Haibing
2fcd1e2b64 scsi: libsas: Remove unused declarations
Commit 042ebd293b86 ("scsi: libsas: kill useless ha_event and do some
cleanup") removed sas_hae_reset() but not its declaration.  Commit
2908d778ab3e ("[SCSI] aic94xx: new driver") declared but never implemented
other functions.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20230809132249.37948-1-yuehaibing@huawei.com
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-21 16:22:09 -04:00
Linus Torvalds
7308e92756 SCSI fixes on 20230813
Eleven small fixes, ten in drivers.  Of the two fixes marked core, one
 is in the raid helper class (used by some raid device drivers) and the
 other one is the /proc/scsi/scsi parsing fix for potential reads
 beyond the end of the buffer.
 
 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:
 "Eleven small fixes, ten in drivers.

  Of the two fixes marked core, one is in the raid helper class (used by
  some raid device drivers) and the other one is the /proc/scsi/scsi
  parsing fix for potential reads beyond the end of the buffer"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qedf: Fix firmware halt over suspend and resume
  scsi: qedi: Fix firmware halt over suspend and resume
  scsi: qedi: Fix potential deadlock on &qedi_percpu->p_work_lock
  scsi: lpfc: Remove reftag check in DIF paths
  scsi: ufs: renesas: Fix private allocation
  scsi: snic: Fix possible memory leak if device_add() fails
  scsi: core: Fix possible memory leak if device_add() fails
  scsi: core: Fix legacy /proc parsing buffer overflow
  scsi: 53c700: Check that command slot is not NULL
  scsi: fnic: Replace return codes in fnic_clean_pending_aborts()
  scsi: storvsc: Fix handling of virtual Fibre Channel timeouts
2023-08-13 08:43:26 -07:00
Martin K. Petersen
9640d57d15 Merge patch series "mpi3mr: Few Enhancements and minor fixes"
Ranjan Kumar <ranjan.kumar@broadcom.com> says:

Few Enhancements and minor fixes of mpi3mr driver.

Link: https://lore.kernel.org/r/20230804104248.118924-1-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:43:24 -04:00
Ranjan Kumar
9a9068b2af scsi: mpi3mr: Update driver version to 8.5.0.0.0
Update driver version to 8.5.0.0.0

Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20230804104248.118924-7-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:41:48 -04:00
Ranjan Kumar
d9a5ab0ea9 scsi: mpi3mr: Enhance handling of devices removed after controller reset
Mark all of the devices that are exposed to the OS prior to a controller
reset and not detected by the controller after the reset as removed devices
and the I/Os to those devices are unblocked (and returned with
DID_NO_CONNECT) prior to removing the devices one after the other.

Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20230804104248.118924-6-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:41:48 -04:00
Ranjan Kumar
e7a8648e1c scsi: mpi3mr: WRITE SAME implementation
Enhance driver to divert the WRITE SAME commands that are issued with
UNMAP=1 and NDOB=1 and with the transfer length greater than the max WRITE
SAME length specified by the firmware for the particular drive to the
controller firmware.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202307280034.DXU5pTVV-lkp@intel.com/
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20230804104248.118924-5-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:41:48 -04:00
Ranjan Kumar
d9adb81e67 scsi: mpi3mr: Add support for more than 1MB I/O
Enhance the driver to get the maximum data length per I/O request from IOC
Facts data and report that to the upper layers.  If the IOC facts data is
not reported then a default I/O size of 1MB is reported to the OS.

Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20230804104248.118924-4-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:41:48 -04:00
Ranjan Kumar
6f81b1cfdf scsi: mpi3mr: Update MPI Headers to version 3.00.28
Updated MPI Headers to version 3.00.28.

Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20230804104248.118924-3-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:41:48 -04:00
Ranjan Kumar
9134211f7b scsi: mpi3mr: Invoke soft reset upon TSU or event ack time out
When a timestamp update or an event acknowledgment command times out, the
driver invokes the soft reset handler to recover the controller while
holding a mutex lock. The soft reset handler also tries to acquire the same
mutex to send initialization commands to the controller which leads to a
deadlock scenario.

To resolve the issue the driver will check thestatus and if this indicates
the controller is operational, the driver will issue a diagnostic fault
reset and exit out of the command processing function. If the controller is
already faulted or asynchronously reset, then the driver will just exit the
command processing function.

Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20230804104248.118924-2-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:41:47 -04:00
Nilesh Javali
ef222f551e scsi: qedf: Fix firmware halt over suspend and resume
While performing certain power-off sequences, PCI drivers are called to
suspend and resume their underlying devices through PCI PM (power
management) interface. However the hardware does not support PCI PM
suspend/resume operations so system wide suspend/resume leads to bad MFW
(management firmware) state which causes various follow-up errors in driver
when communicating with the device/firmware.

To fix this driver implements PCI PM suspend handler to indicate
unsupported operation to the PCI subsystem explicitly, thus avoiding system
to go into suspended/standby mode.

Fixes: 61d8658b4a43 ("scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework.")
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230807093725.46829-1-njavali@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:34:08 -04:00
Nilesh Javali
1516ee035d scsi: qedi: Fix firmware halt over suspend and resume
While performing certain power-off sequences, PCI drivers are called to
suspend and resume their underlying devices through PCI PM (power
management) interface. However the hardware does not support PCI PM
suspend/resume operations so system wide suspend/resume leads to bad MFW
(management firmware) state which causes various follow-up errors in driver
when communicating with the device/firmware.

To fix this driver implements PCI PM suspend handler to indicate
unsupported operation to the PCI subsystem explicitly, thus avoiding system
to go into suspended/standby mode.

Fixes: ace7f46ba5fd ("scsi: qedi: Add QLogic FastLinQ offload iSCSI driver framework.")
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230807093725.46829-2-njavali@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:34:08 -04:00
Chengfeng Ye
dd64f80587 scsi: qedi: Fix potential deadlock on &qedi_percpu->p_work_lock
As &qedi_percpu->p_work_lock is acquired by hard IRQ qedi_msix_handler(),
other acquisitions of the same lock under process context should disable
IRQ, otherwise deadlock could happen if the IRQ preempts the execution
while the lock is held in process context on the same CPU.

qedi_cpu_offline() is one such function which acquires the lock in process
context.

[Deadlock Scenario]
qedi_cpu_offline()
    ->spin_lock(&p->p_work_lock)
        <irq>
        ->qedi_msix_handler()
        ->edi_process_completions()
        ->spin_lock_irqsave(&p->p_work_lock, flags); (deadlock here)

This flaw was found by an experimental static analysis tool I am developing
for IRQ-related deadlocks.

The tentative patch fix the potential deadlock by spin_lock_irqsave()
under process context.

Signed-off-by: Chengfeng Ye <dg573847474@gmail.com>
Link: https://lore.kernel.org/r/20230726125655.4197-1-dg573847474@gmail.com
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:34:08 -04:00
Justin Tee
8eebf0e84f scsi: lpfc: Remove reftag check in DIF paths
When preparing protection DIF I/O for DMA, the driver obtains reference
tags from scsi_prot_ref_tag().  Previously, there was a wrong assumption
that an all 0xffffffff value meant error and thus the driver failed the
I/O.  This patch removes the evaluation code and accepts whatever the upper
layer returns.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20230803211932.155745-1-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:34:08 -04:00
Zhu Wang
41320b18a0 scsi: snic: Fix possible memory leak if device_add() fails
If device_add() returns error, the name allocated by dev_set_name() needs
be freed. As the comment of device_add() says, put_device() should be used
to give up the reference in the error path. So fix this by calling
put_device(), then the name can be freed in kobject_cleanp().

Fixes: c8806b6c9e82 ("snic: driver for Cisco SCSI HBA")
Signed-off-by: Zhu Wang <wangzhu9@huawei.com>
Acked-by: Narsimhulu Musini <nmusini@cisco.com>
Link: https://lore.kernel.org/r/20230801111421.63651-1-wangzhu9@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:34:08 -04:00
Zhu Wang
04b5b5cb01 scsi: core: Fix possible memory leak if device_add() fails
If device_add() returns error, the name allocated by dev_set_name() needs
be freed. As the comment of device_add() says, put_device() should be used
to decrease the reference count in the error path. So fix this by calling
put_device(), then the name can be freed in kobject_cleanp().

Fixes: ee959b00c335 ("SCSI: convert struct class_device to struct device")
Signed-off-by: Zhu Wang <wangzhu9@huawei.com>
Link: https://lore.kernel.org/r/20230803020230.226903-1-wangzhu9@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:34:08 -04:00
Justin Tee
dded1dc31a scsi: lpfc: Modify when a node should be put in device recovery mode during RSCN
Only nodes whose state is at least past a PLOGI issue and strictly less
than a PRLI issue should be put into device recovery mode upon RSCN
receipt.  Previously, the allowance of LOGO and PRLI completion states did
not make sense because those nodes should be allowed to flow through and
marked as NPort dissappeared as is normally done.  A follow up RSCN GID_FT
would recover those nodes in such cases.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20230804195546.157839-1-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-08-07 21:25:47 -04:00
Linus Torvalds
fb0d91991c ata fixes for 6.5-rc5
- Prevent the scsi disk driver from issuing a START STOP UNIT command
    for ATA devices during system resume as this causes various issues
    reported by multiple users.
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Merge tag 'ata-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata

Pull ata fix from Damien Le Moal:

 - Prevent the scsi disk driver from issuing a START STOP UNIT command
   for ATA devices during system resume as this causes various issues
   reported by multiple users.

* tag 'ata-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata,scsi: do not issue START STOP UNIT on resume
2023-08-05 18:45:18 -07:00
Niklas Cassel
541528170a ata,scsi: remove ata_sas_port_init()
ata_sas_port_init() now only contains a single initialization.

Move this single initialization to ata_sas_port_alloc(), since:
1) ata_sas_port_alloc() already initializes some of the struct members.
2) ata_sas_port_alloc() is only used by libsas.

Suggested-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2023-08-02 17:45:30 +09:00
Hannes Reinecke
a76f1b637c ata,scsi: cleanup __ata_port_probe()
Rename __ata_port_probe() to ata_port_probe() and drop the wrapper
ata_sas_async_probe().

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2023-08-02 17:45:27 +09:00
Hannes Reinecke
6c2fe21e08 ata,scsi: remove ata_sas_port_destroy()
Is now a wrapper around kfree(), so call it directly.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2023-08-02 17:45:16 +09:00
Hannes Reinecke
43aa43351b ata,scsi: remove ata_sas_port_{start,stop} callbacks
Callbacks are empty now, so remove them.

Also, remove the call to ap->ops->port_start() in ata_sas_port_init(),
as this would otherwise cause a NULL pointer dereference, now when the
callback is gone.

Signed-off-by: Hannes Reinecke <hare@suse.de>
[niklas: remove the call to ap->ops->port_start() in ata_sas_port_init()]
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
2023-08-02 17:45:13 +09:00