CNIC depends on MMU, but since 'select' does not follow any dependency
chains, SCSI_BNX2X_FCOE also needs to depend on MMU, so that erroneous
configs are not generated, which cause build errors in cnic.
WARNING: unmet direct dependencies detected for CNIC
Depends on [n]: NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_BROADCOM [=y] && PCI [=y] && (IPV6 [=n] || IPV6 [=n]=n) && MMU [=n]
Selected by [y]:
- SCSI_BNX2X_FCOE [=y] && SCSI_LOWLEVEL [=y] && SCSI [=y] && PCI [=y] && (IPV6 [=n] || IPV6 [=n]=n) && LIBFC [=y] && LIBFCOE [=y]
riscv64-linux-ld: drivers/net/ethernet/broadcom/cnic.o: in function `.L154':
cnic.c:(.text+0x1094): undefined reference to `uio_event_notify'
riscv64-linux-ld: cnic.c:(.text+0x10bc): undefined reference to `uio_event_notify'
riscv64-linux-ld: drivers/net/ethernet/broadcom/cnic.o: in function `.L1442':
cnic.c:(.text+0x96a8): undefined reference to `__uio_register_device'
riscv64-linux-ld: drivers/net/ethernet/broadcom/cnic.o: in function `.L0 ':
cnic.c:(.text.unlikely+0x68): undefined reference to `uio_unregister_device'
Link: https://lore.kernel.org/r/20210213192428.22537-1-rdunlap@infradead.org
Fixes: 853e2bd210 ("[SCSI] bnx2fc: Broadcom FCoE offload driver")
Cc: Saurav Kashyap <skashyap@marvell.com>
Cc: Javed Hasan <jhasan@marvell.com>
Cc: GR-QLogic-Storage-Upstream@marvell.com
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fixes: 2b2bfc8aa5 ("scsi: ufs: Introduce a quirk to allow only page-aligned sg entries")
Link: https://lore.kernel.org/r/20210211104638.292499-1-avri.altman@wdc.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
TCM buffer length doesn't necessarily equal 8 + ADDITIONAL LENGTH which
might be considered an underflow in case of Data-In size being greater than
8 + ADDITIONAL LENGTH. So truncate buffer length to prevent underflow.
Link: https://lore.kernel.org/r/20210209072202.41154-3-a.miloserdov@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Bodo Stroesser <bostroesser@gmail.com>
Signed-off-by: Aleksandr Miloserdov <a.miloserdov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
TCM doesn't properly handle underflow case for service actions. One way to
prevent it is to always complete command with
target_complete_cmd_with_length(), however it requires access to data_sg,
which is not always available.
This change introduces target_set_cmd_data_length() function which allows
to set command data length before completing it.
Link: https://lore.kernel.org/r/20210209072202.41154-2-a.miloserdov@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Bodo Stroesser <bostroesser@gmail.com>
Signed-off-by: Aleksandr Miloserdov <a.miloserdov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The session lock in iscsi_session_chkready() is not needed because when we
transition from logged into to another state we will block and/or remove
the devices under the session, so no new I/O will be sent to the drivers
after the block/remove. I/O that races with the block/removal is cleaned up
by the drivers when it handles all outstanding I/O, so this just added an
extra lock in the main I/O path. This patch removes the lock like other
transport classes.
Link: https://lore.kernel.org/r/20210207044608.27585-10-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
__qla4xxx_is_chap_active() just wants to know if a session is online and
does not care about why it's not, so this has it use
iscsi_is_session_online().
This is not a bug now, but the next patch changes the behavior of
iscsi_session_chkready() so this patch just prepares the driver for that
change.
Link: https://lore.kernel.org/r/20210207044608.27585-9-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If we lose the session then relogin, but the new cmdsn window has shrunk
(due to something like an admin changing a setting) we will have the old
exp/max_cmdsn values and will never be able to update them. For example,
max_cmdsn would be 64, but if on the target the user set the window to be
smaller then the target could try to return the max_cmdsn as 32. We will
see that new max_cmdsn in the rsp but because it's lower than the old
max_cmdsn when the window was larger we will not update it.
So this patch has us reset the window values during session cleanup so they
can be updated after a new login.
Link: https://lore.kernel.org/r/20210207044608.27585-8-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We are setting the shost's can_queue after we add the host which is too
late, because the SCSI midlayer will have allocated the tag set based on
the can_queue value at that time. This patch has us use the
iscsi_host_get_max_scsi_cmds() helper to figure out the number of SCSI
cmds.
It also fixes up the template can_queue so it reflects the max SCSI cmds we
can support like how other drivers work.
Link: https://lore.kernel.org/r/20210207044608.27585-7-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch just breaks out the code that calculates the number of SCSI cmds
that will be used for a SCSI session. It also adds a check that we don't go
over the host's can_queue value.
Link: https://lore.kernel.org/r/20210207044608.27585-6-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We allocate the iSCSI host workq in iscsi_host_alloc() so iscsi_host_free()
should do the destruction. Drivers can then do their error/goto handling
and call iscsi_host_free() to clean up what has been allocated in
iscsi_host_alloc().
Link: https://lore.kernel.org/r/20210207044608.27585-5-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The following bug was reported and debugged by wubo40@huawei.com:
When testing kernel 4.18 version, NULL pointer dereference problem occurs
in iscsi_eh_cmd_timed_out() function.
I think this bug in the upstream is still exists.
The analysis reasons are as follows:
1) For some reason, I/O command did not complete within the timeout
period. The block layer timer works, call scsi_times_out() to handle I/O
timeout logic. At the same time the command just completes.
2) scsi_times_out() call iscsi_eh_cmd_timed_out() to process timeout logic.
Although there is an NULL judgment for the task, the task has not been
released yet now.
3) iscsi_complete_task() calls __iscsi_put_task(). The task reference count
reaches zero, the conditions for free task is met, then
iscsi_free_task() frees the task, and sets sc->SCp.ptr = NULL. After
iscsi_eh_cmd_timed_out() passes the task judgment check, there can still
be NULL dereference scenarios.
CPU0 CPU3
|- scsi_times_out() |-
iscsi_complete_task()
| |
|- iscsi_eh_cmd_timed_out() |-
__iscsi_put_task()
| |
|- task=sc->SCp.ptr, task is not NUL, check passed |-
iscsi_free_task(task)
| |
| |-> sc->SCp.ptr
= NULL
| |
|- task is NULL now, NULL pointer dereference |
| |
\|/ \|/
Calltrace:
[380751.840862] BUG: unable to handle kernel NULL pointer dereference at
0000000000000138
[380751.843709] PGD 0 P4D 0
[380751.844770] Oops: 0000 [#1] SMP PTI
[380751.846283] CPU: 0 PID: 403 Comm: kworker/0:1H Kdump: loaded
Tainted: G
[380751.851467] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
[380751.856521] Workqueue: kblockd blk_mq_timeout_work
[380751.858527] RIP: 0010:iscsi_eh_cmd_timed_out+0x15e/0x2e0 [libiscsi]
[380751.861129] Code: 83 ea 01 48 8d 74 d0 08 48 8b 10 48 8b 4a 50 48 85
c9 74 2c 48 39 d5 74
[380751.868811] RSP: 0018:ffffc1e280a5fd58 EFLAGS: 00010246
[380751.870978] RAX: ffff9fd1e84e15e0 RBX: ffff9fd1e84e6dd0 RCX:
0000000116acc580
[380751.873791] RDX: ffff9fd1f97a9400 RSI: ffff9fd1e84e1800 RDI:
ffff9fd1e4d6d420
[380751.876059] RBP: ffff9fd1e4d49000 R08: 0000000116acc580 R09:
0000000116acc580
[380751.878284] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff9fd1e6e931e8
[380751.880500] R13: ffff9fd1e84e6ee0 R14: 0000000000000010 R15:
0000000000000003
[380751.882687] FS: 0000000000000000(0000) GS:ffff9fd1fac00000(0000)
knlGS:0000000000000000
[380751.885236] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[380751.887059] CR2: 0000000000000138 CR3: 000000011860a001 CR4:
00000000003606f0
[380751.889308] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[380751.891523] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[380751.893738] Call Trace:
[380751.894639] scsi_times_out+0x60/0x1c0
[380751.895861] blk_mq_check_expired+0x144/0x200
[380751.897302] ? __switch_to_asm+0x35/0x70
[380751.898551] blk_mq_queue_tag_busy_iter+0x195/0x2e0
[380751.900091] ? __blk_mq_requeue_request+0x100/0x100
[380751.901611] ? __switch_to_asm+0x41/0x70
[380751.902853] ? __blk_mq_requeue_request+0x100/0x100
[380751.904398] blk_mq_timeout_work+0x54/0x130
[380751.905740] process_one_work+0x195/0x390
[380751.907228] worker_thread+0x30/0x390
[380751.908713] ? process_one_work+0x390/0x390
[380751.910350] kthread+0x10d/0x130
[380751.911470] ? kthread_flush_work_fn+0x10/0x10
[380751.913007] ret_from_fork+0x35/0x40
crash> dis -l iscsi_eh_cmd_timed_out+0x15e
xxxxx/drivers/scsi/libiscsi.c: 2062
1970 enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd
*sc)
{
...
1984 spin_lock_bh(&session->frwd_lock);
1985 task = (struct iscsi_task *)sc->SCp.ptr;
1986 if (!task) {
1987 /*
1988 * Raced with completion. Blk layer has taken
ownership
1989 * so let timeout code complete it now.
1990 */
1991 rc = BLK_EH_DONE;
1992 goto done;
1993 }
...
2052 for (i = 0; i < conn->session->cmds_max; i++) {
2053 running_task = conn->session->cmds[i];
2054 if (!running_task->sc || running_task == task ||
2055 running_task->state != ISCSI_TASK_RUNNING)
2056 continue;
2057
2058 /*
2059 * Only check if cmds started before this one have
made
2060 * progress, or this could never fail
2061 */
2062 if (time_after(running_task->sc->jiffies_at_alloc,
2063 task->sc->jiffies_at_alloc)) <---
2064 continue;
2065
...
}
carsh> struct scsi_cmnd ffff9fd1e6e931e8
struct scsi_cmnd {
...
SCp = {
ptr = 0x0, <--- iscsi_task
this_residual = 0,
...
},
}
To prevent this, we take a ref to the cmd under the back (completion) lock
so if the completion side were to call iscsi_complete_task() on the task
while the timer/eh paths are not holding the back_lock it will not be freed
from under us.
Note that this requires the previous patch, "scsi: libiscsi: Drop
taskqueuelock" because bnx2i sleeps in its cleanup_task callout if the cmd
is aborted. If the EH/timer and completion path are racing we don't know
which path will do the last put. The previous patch moved the operations we
needed to do under the forward lock to cleanup_queued_task. Once that has
run we can drop the forward lock for the cmd and bnx2i no longer has to
worry about if the EH, timer or completion path did the ast put and if the
forward lock is held or not since it won't be.
Link: https://lore.kernel.org/r/20210207044608.27585-4-michael.christie@oracle.com
Reported-by: Wu Bo <wubo40@huawei.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The purpose of the taskqueuelock was to handle the issue where a bad target
decides to send a R2T and before its data has been sent decides to send a
cmd response to complete the cmd. The following patches fix up the
frwd/back locks so they are taken from the queue/xmit (frwd) and completion
(back) paths again. To get there this patch removes the taskqueuelock which
for iSCSI xmit wq based drivers was taken in the queue, xmit and completion
paths.
Instead of the lock, we just make sure we have a ref to the task when we
queue a R2T, and then we always remove the task from the requeue list in
the xmit path or the forced cleanup paths.
Link: https://lore.kernel.org/r/20210207044608.27585-3-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If iscsi_prep_scsi_cmd_pdu() fails we try to add it back to the cmdqueue,
but we leave it partially setup. We don't have functions that can undo the
pdu and init task setup. We only have cleanup_task which can clean up both
parts. So this has us just fail the cmd and go through the standard cleanup
routine and then have the SCSI midlayer retry it like is done when it fails
in the queuecommand path.
Link: https://lore.kernel.org/r/20210207044608.27585-2-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch removes unneeded return variables. It fixes the following
warning detected by coccinelle:
./drivers/scsi/isci/request.c:1483:17-23: Unneeded variable: "status".
Return "SCI_SUCCESS" on line 1503
./drivers/scsi/isci/request.c:2157:17-23: Unneeded variable: "status".
Return "SCI_SUCCESS" on line 2177
Link: https://lore.kernel.org/r/1612424915-106608-1-git-send-email-yang.lee@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Print event counter after dumping the event history.
Link: https://lore.kernel.org/r/20210203101443.28934-1-dh0421.hwang@samsung.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: DooHyun Hwang <dh0421.hwang@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following coccicheck warnings:
./drivers/scsi/qla2xxx/qla_target.c:984:12-14: WARNING !A || A && B is
equivalent to !A || B.
Link: https://lore.kernel.org/r/1612319190-111421-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Eliminate the following coccicheck warning:
./drivers/target/sbp/sbp_target.c:1009:2-3: Unneeded semicolon
Link: https://lore.kernel.org/r/1612316992-71443-1-git-send-email-yang.lee@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When a host trace buffer is released, applications never know for what
reason the buffer is released. Add a new IOCTL MPT3ADDNLDIAGQUERY to
provide the trigger information due to which the diag buffer is released.
Link: https://lore.kernel.org/r/20210204033724.1345-2-suganath-prabu.subramani@broadcom.com
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
MPT Fusion adapters can steer completions to individual queues and we now
have support for shared host-wide tags in the I/O stack. The addition of
the host-wide tags allows us to enable multiqueue support for MPT Fusion
adapters. Once host-wise tags are enabled, the CPU hotplug feature is also
supported.
Allow use of host-wide tags to be disabled through the "host_tagset_enable"
module parameter. Once we do not have any major performance regressions
using host-wide tags, we will drop the hand-crafted interrupt affinity
settings.
Performance is meeting expectations. About 3.1M IOPS using 24 Drive SSD on
Aero controllers.
Link: https://lore.kernel.org/r/20210202095832.23072-1-sreekanth.reddy@broadcom.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently the driver allocates memory for ReplyPostFree queues in chunks of
16. In resource constrained environments--such as VM with 1 GB RAM and 2
CPUs--memory allocation for ReplyPostFree pools may fail because the driver
tries to allocate a memory for 16 ReplyPostFree queues even though the
actual number needed is 2.
Change the driver to allocate memory for only the actual number of queues
needed if the ReplyPostFree queue count is less than 16.
Link: https://lore.kernel.org/r/20210201141522.25363-1-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Building with 'make W=1' enables -Wpacked-not-aligned, and this warns about
pmcraid because of incompatible alignment constraints for
pmcraid_passthrough_ioctl_buffer:
drivers/scsi/pmcraid.h:1044:1: warning: alignment 1 of 'struct pmcraid_passthrough_ioctl_buffer' is less than 32 [-Wpacked-not-aligned]
1044 | } __attribute__ ((packed));
| ^
drivers/scsi/pmcraid.h:1041:24: warning: 'ioarcb' offset 16 in 'struct pmcraid_passthrough_ioctl_buffer' isn't aligned to 32 [-Wpacked-not-aligned]
1041 | struct pmcraid_ioarcb ioarcb;
The inner structure is documented as having 32 byte alignment here, but is
starts at a 16 byte offset in the outer structure, so it's never actually
aligned, as the outer structure is also marked 'packed'.
Lee Jones point this out as one of the last files that need to be changed
before the warning can be enabled by default.
Change the annotations in a way that avoids the warning but leaves the
layout unchanged, by removing the packing on the inner structure and adding
it to the outer one. The one-byte request_buffer[] array should have been a
flexible array member here, which is how I change it to avoid extra padding
from the alignment attribute.
Link: https://lore.kernel.org/r/20210204163020.3286210-1-arnd@kernel.org
Cc: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In sd_probe(), print a warning if CONFIG_BLK_DEV_ZONED is disabled and a
TYPE_ZBC device is found. While at it, use IS_ENABLED() to test if
CONFIG_BLK_DEV_ZONED is enabled instead using of a #ifdef.
Link: https://lore.kernel.org/r/20210128055658.530133-1-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 0653c358d2 ("scsi: Drop gdth driver") fails to update MAINTAINERS.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains:
warning: no file matches F: drivers/scsi/gdt*
Remove the GDT SCSI DISK ARRAY CONTROLLER DRIVER section as well, as the
driver is removed now.
Link: https://lore.kernel.org/r/20210129052829.13642-1-lukas.bulwahn@gmail.com
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The initialization of clk_scaling.min_gear was removed by mistake. This
change adds it back, otherwise clock scaling down would fail.
Link: https://lore.kernel.org/r/1611802172-37802-1-git-send-email-cang@codeaurora.org
Fixes: 4543d9d782 ("scsi: ufs: Refactor ufshcd_init/exit_clk_scaling/gating()")
Reported-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.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 the following coccicheck warnings:
./drivers/scsi/qla2xxx/qla_nvme.c:288:24-26: WARNING !A || A && B is
equivalent to !A || B.
Link: https://lore.kernel.org/r/1611650554-33019-1-git-send-email-abaci-bugfix@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Jiapeng Zhong <abaci-bugfix@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
According to FCP-4 (9.4.2):
If the command requested that data beyond the length specified by the
FCP_DL field be transferred, then the device server shall set the
FCP_RESID_OVER bit (see 9.5.8) to one in the FCP_RSP IU and:
a) process the command normally except that data beyond the FCP_DL count
shall not be requested or transferred;
b) transfer no data and return CHECK CONDITION status with the sense key
set to ILLEGAL REQUEST and the additional sense code set to INVALID FIELD
IN COMMAND INFORMATION UNIT; or
c) may transfer data and return CHECK CONDITION status with the sense key
set to ABORTED COMMAND and the additional sense code set to INVALID FIELD
IN COMMAND INFORMATION UNIT.
TCM follows b) and transfers no data for residual writes but returns
INVALID FIELD IN CDB instead of INVALID FIELD IN COMMAND INFORMATION UNIT.
Change the ASCQ to INVALID FIELD IN COMMAND INFORMATION UNIT to meet the
standard.
Link: https://lore.kernel.org/r/20201203082035.54566-4-a.kovaleva@yadro.com
Signed-off-by: Anastasia Kovaleva <a.kovaleva@yadro.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
According to RFC 7143 11.4.5.2.:
If SPDTL > EDTL for a task, iSCSI Overflow MUST be signaled in the SCSI
Response PDU as specified in Section 11.4.5.1. The Residual Count MUST
be set to the numerical value of (SPDTL - EDTL).
If SPDTL < EDTL for a task, iSCSI Underflow MUST be signaled in the SCSI
Response PDU as specified in Section 11.4.5.1. The Residual Count MUST
be set to the numerical value of (EDTL - SPDTL).
libiscsi has residual write tests that check residual kind and residual
amount and all of them (Write10Residuals, Write12Residuals,
Write16Residuals) currently fail.
One of the reasons why they fail is because target completes write commands
with INVALID FIELD IN CDB before setting the Overflow/Underflow bit and
residual amount.
Set the Overflow/Underflow bit and the residual amount before failing a
write to comply with RFC 7143.
Link: https://lore.kernel.org/r/20201203082035.54566-3-a.kovaleva@yadro.com
Signed-off-by: Anastasia Kovaleva <a.kovaleva@yadro.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
TCM always fails SBC commands with residuals for 4Kn devices when the
command is processed by sbc_parse_cdb(). That prevents residual signalling
to the transport driver because residual kind and residual amount aren't
set. It also makes residual handling different from 512-byte formatted
devices - if there are residuals 512-byte LUN would proceed with command
execution while 4K-byte LUN would fail.
Link: https://lore.kernel.org/r/20201203082035.54566-2-a.kovaleva@yadro.com
Based-on: https://patchwork.kernel.org/project/target-devel/patch/20170523234854.21452-31-bart.vanassche@sandisk.com/
Based-on-patch-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Konstantin Vinogradov <k.vinogradov@yadro.com>
Signed-off-by: Anastasia Kovaleva <a.kovaleva@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The controller provides trace FIFO DFX tool to assist link fault debugging
and link optimization. This tool can be helpful when debugging link faults
without SAS analyzers. Each PHY has an independent trace FIFO interface.
The user can configure the trace FIFO tool of one PHY by using the
following six interfaces:
signal_sel: select signal group applies to different scenarios.
0x0: linkrate negotiation
0x1: Host 12G TX train
0x2: Disk 12G TX train
0x3: SAS PHY CTRL DFX 0
0x4: SAS PHY CTRL DFX 1
0x5: SAS PCS DFX
other: linkrate negotiation
dump_mask: The masked hardware status bit will not be updated.
dump_mode: determines how to dump data after trigger signal is generated.
0x0: dump forever
0x1: dump 32 data after trigger signal is generated
0x2: no more dump after trigger signal is generated
trigger_mode: determines the trigger mode, level or edge.
0x0: dump when trigger signal changed
0x1: dump when trigger signal's level equal to trigger_level
0x2: dump when trigger signal's level different from trigger_level
trigger_level: determines the trigger level.
trigger_msk: mask trigger signal
The user can get 32-byte values from hardware by reading the rd_data.
These values consitute the status record of the hardware at different time
points.
Link: https://lore.kernel.org/r/1611659068-131975-6-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>
If the controller reset occurs at the same time as driver removal, it may
be possible that the interrupts have been released prior to the host
softreset, and calling pci_irq_vector() there causes a WARN:
WARNING: CPU: 37 PID: 1542 /pci/msi.c:1275 pci_irq_vector+0xc0/0xd0
Call trace:
pci_irq_vector+0xc0/0xd0
disable_host_v3_hw+0x58/0x5b0 [hisi_sas_v3_hw]
soft_reset_v3_hw+0x40/0xc0 [hisi_sas_v3_hw]
hisi_sas_controller_reset+0x150/0x260 [hisi_sas_main]
hisi_sas_rst_work_handler+0x3c/0x58 [hisi_sas_main]
To fix, flush the driver workqueue prior to releasing the interrupts to
ensure any resets have been completed.
Link: https://lore.kernel.org/r/1611659068-131975-5-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>
Add a config option to enable debugfs support by default. And if debugfs
support is enabled by default, dump count default value is increased to 50
as generally users want something bigger than the current default in that
situation.
Link: https://lore.kernel.org/r/1611659068-131975-4-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>
Now that v2 and v3 hw expose their HW queues (and so shost.nr_hw_queues is
set), remove the conditional checks in hisi_sas_task_prep().
This change would affect v1 HW performance (as it does not expose HW
queues), but nobody uses it and support may be dropped soon.
Link: https://lore.kernel.org/r/1611659068-131975-3-git-send-email-john.garry@huawei.com
Reviewed-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>
The platform_get_irq() check for -EPROBE_DEFER was to ensure that all the
steps to add the SCSI host are not done and then only to realise that the
probe needs to be deferred.
However, since there is now an earlier check for this in
hisi_sas_interrupt_preinit(), this check is superfluous and may be removed.
Link: https://lore.kernel.org/r/1611659068-131975-2-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>
lpfc depends on irq_poll library, but it is not selected automatically.
When irq_poll is not selected, compiling it can run into following error
ERROR: modpost: "irq_poll_init" [drivers/scsi/lpfc/lpfc.ko] undefined!
ERROR: modpost: "irq_poll_sched" [drivers/scsi/lpfc/lpfc.ko] undefined!
ERROR: modpost: "irq_poll_complete" [drivers/scsi/lpfc/lpfc.ko] undefined!
Link: https://lore.kernel.org/r/20210126000554.309858-1-ztong0001@gmail.com
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The patch to switch using SAM status values had some typos; fix them up.
Link: https://lore.kernel.org/r/20210125085415.70574-1-hare@suse.de
Fixes: 491152c7c3 ("scsi: ncr53c8xx: Use SAM status values")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The "pmb" pointer is freed at the start of the function and then freed
again in the error handling code.
Link: https://lore.kernel.org/r/YA6E8rO51hE56SVw@mwanda
Fixes: 92d7f7b0cd ("[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This was supposed to be "data" instead of "&data". The current code will
corrupt the stack.
Link: https://lore.kernel.org/r/YA6E0geUlL9Hs04A@mwanda
Fixes: dbf1f53cfd ("scsi: qla2xxx: Implementation to get and manage host, target stats and initiator port")
Acked-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The UFS core has received a substantial rework this cycle. This in
turn has caused a merge conflict in linux-next. Merge 5.11/scsi-fixes
into 5.12/scsi-queue and resolve the conflict.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix below warnings reported by coccicheck:
./drivers/scsi/qla2xxx/qla_init.c:3371:2-7: WARNING: NULL check before
some freeing functions is not needed.
./drivers/scsi/qla2xxx/qla_init.c:7855:5-10: WARNING: NULL check before
some freeing functions is not needed.
./drivers/scsi/qla2xxx/qla_init.c:7916:2-7: WARNING: NULL check before
some freeing functions is not needed.
./drivers/scsi/qla2xxx/qla_init.c:8113:4-18: WARNING: NULL check before
some freeing functions is not needed.
./drivers/scsi/qla2xxx/qla_init.c:8174:2-7: WARNING: NULL check before
some freeing functions is not needed.
Link: https://lore.kernel.org/r/1611306174-92627-1-git-send-email-abaci-bugfix@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Yang Li <abaci-bugfix@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
NULL check before vfree is not needed.
Generated by: scripts/coccinelle/free/ifnullfree.cocci
Link: https://lore.kernel.org/r/alpine.DEB.2.22.394.2012111113060.2669@hadrien
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Since Linus Torvalds reinstated KERN_CONT in commit 4bcc595ccd ("printk:
reinstate KERN_CONT for printing continuation lines") in 2015, the qla1280
SCSI driver printed a rather ugly and screen real estate wasting multi-line
per device status glibberish during boot. Fix this by adding KERN_CONT as
needed.
Tested on my Sgi Octane: https://youtu.be/Lfqe1SYR2jk
Link: https://lore.kernel.org/r/20201210.223944.388095546873159172.rene@exactcode.com
Signed-off-by: René Rebe <rene@exactcode.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Delete ufshcd_wb_buf_flush_enable() and ufshcd_wb_buf_flush_disable(). Move
the implementation into ufshcd_wb_toggle_flush().
Link: https://lore.kernel.org/r/20210121185736.12471-1-huobean@gmail.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The list iterator can't be NULL so this check is not required. Removing
the check silences a Smatch warning about inconsistent NULL checking.
drivers/scsi/qla2xxx/qla_dfs.c:371 qla_dfs_tgt_counters_show()
error: we previously assumed 'fcport' could be null (see line 372)
Link: https://lore.kernel.org/r/YAkaaSrhn1mFqyHy@mwanda
Acked-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the following coccicheck warnings:
./drivers/scsi/qla2xxx/qla_isr.c:780:2-18: WARNING: Assignment
of 0/1 to bool variable.
Link: https://lore.kernel.org/r/1611127919-56551-1-git-send-email-abaci-bugfix@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Zhong <abaci-bugfix@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
