Commit Graph

2276 Commits

Author SHA1 Message Date
Himanshu Madhani
248a445adf scsi: qla2xxx: Silence fwdump template message
Print if fwdt template is present or not, only when
ql2xextended_error_logging is enabled.

Link: https://lore.kernel.org/r/20190912180918.6436-2-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-23 23:09:42 -04:00
Himanshu Madhani
fd807dc471 scsi: qla2xxx: Update driver version to 10.01.00.19-k
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-7-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-07 15:38:55 -04:00
Quinn Tran
2037ce49d3 scsi: qla2xxx: Fix stale session
On fast cable pull, where driver is unable to detect device has disappeared
and came back based on switch info, qla2xxx would not re-login while remote
port has already invalidated the session.  This causes IO timeout.  This
patch would relogin to remote device for RSCN affected port.

Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-6-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-07 15:38:55 -04:00
Quinn Tran
ce0ba496dc scsi: qla2xxx: Fix stuck login session
Login session was stucked on cable pull. When FW is in the middle PRLI
PENDING + driver is in Initiator mode, driver fails to check back with FW to
see if the PRLI has completed. This patch would re-check with FW again to
make sure PRLI would complete before pushing forward with relogin.

Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-5-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-07 15:38:55 -04:00
Himanshu Madhani
32a13df216 scsi: qla2xxx: Fix driver reload for ISP82xx
HINT_MBX_INT_PENDING is not guaranteed to be cleared by firmware. Remove
check that prevent driver load with ISP82XX.

Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-4-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-07 15:38:55 -04:00
Quinn Tran
cb92cb1657 scsi: qla2xxx: Fix flash read for Qlogic ISPs
Use adapter specific callback to read flash instead of ISP adapter
specific.

Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-3-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-07 15:38:55 -04:00
Himanshu Madhani
da48b82425 scsi: qla2xxx: Fix message indicating vectors used by driver
This patch updates log message which indicates number of vectors used by
the driver instead of displaying failure to get maximum requested
vectors. Driver will always request maximum vectors during
initialization. In the event driver is not able to get maximum requested
vectors, it will adjust the allocated vectors. This is normal and does not
imply failure in driver.

Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Link: https://lore.kernel.org/r/20190830222402.23688-2-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-07 15:38:54 -04:00
Colin Ian King
401fe8e99c scsi: qla2xxx: fix spelling mistake "initializatin" -> "initialization"
There is a spelling mistake in a ql_log message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:03:05 -04:00
Bart Van Assche
dd93b14370 scsi: qla2xxx: Fix a recently introduced kernel warning
According to the firmware documentation a status type 0 IOCB can be
followed by one or more status continuation type 0 IOCBs. Hence do not
complain if the completion function is not called from inside the status
type 0 IOCB handler.

WARNING: CPU: 10 PID: 425 at drivers/scsi/qla2xxx/qla_isr.c:2784
qla2x00_status_entry.isra.7+0x484/0x17b0 [qla2xxx]
CPU: 10 PID: 425 Comm: kworker/10:1 Tainted: G            E     5.3.0-rc4-next-20190813-autotest-autotest #1
Workqueue: qla2xxx_wq qla25xx_free_rsp_que [qla2xxx]
Call Trace:
 qla2x00_status_entry.isra.7+0x1484/0x17b0 [qla2xxx] (unreliable)
 qla24xx_process_response_queue+0x7d8/0xbd0 [qla2xxx]
 qla25xx_free_rsp_que+0x1a0/0x220 [qla2xxx]
 process_one_work+0x25c/0x520
 worker_thread+0x8c/0x5e0
 kthread+0x154/0x1a0
 ret_from_kernel_thread+0x5c/0x7c

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 17:52:39 -04:00
Martin Wilck
3cf92f4bfc scsi: qla2xxx: cleanup trace buffer initialization
Avoid code duplication between qla2x00_alloc_offload_mem() and
qla2x00_alloc_fw_dump() by moving the FCE and EFT buffer allocation and
initialization to separate functions. Cleanly track failure and success by
making sure that the ha->eft, ha->fce and respective eft_dma, fce_dma
members are set if and only if the buffers are properly allocated and
initialized. Avoid pointless buffer reallocation.  Eliminate some goto
statements. Make sure the fce_enabled flag is cleared when the FCE buffer
is freed.

Fixes: ad0a0b01f0 ("scsi: qla2xxx: Fix Firmware dump size for Extended login and Exchange Offload")
Fixes: a28d9e4ef9 ("scsi: qla2xxx: Add support for multiple fwdump templates/segments")
Cc: Joe Carnuccio <joe.carnuccio@cavium.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-19 21:51:00 -04:00
Martin Wilck
edbd56472a scsi: qla2xxx: qla2x00_alloc_fw_dump: set ha->eft
In qla2x00_alloc_fw_dump(), an existing EFT buffer (e.g. from previous
invocation of qla2x00_alloc_offload_mem()) is freed.  The buffer is then
re-allocated, but without setting the eft and eft_dma fields to the new
values.

Fixes: a28d9e4ef9 ("scsi: qla2xxx: Add support for multiple fwdump templates/segments")
Cc: Joe Carnuccio <joe.carnuccio@cavium.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-19 21:50:56 -04:00
Bart Van Assche
d1436e456b scsi: qla2xxx: Fix a NULL pointer dereference
BUG: KASAN: null-ptr-deref in qla24xx_handle_plogi_done_event+0x134/0x9f0 [qla2xxx]
Read of size 4 at addr 00000000000000a0 by task swapper/2/0

CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.2.0-dbg+ #1
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Call Trace:
 <IRQ>
 dump_stack+0x8a/0xd6
 __kasan_report.cold+0x5/0x41
 kasan_report+0x16/0x20
 __asan_load4+0x7e/0x80
 qla24xx_handle_plogi_done_event+0x134/0x9f0 [qla2xxx]
 qla2x00_els_dcmd2_sp_done+0x15f/0x230 [qla2xxx]
 qla24xx_els_ct_entry+0x3b3/0x610 [qla2xxx]
 qla24xx_process_response_queue+0x514/0x10e0 [qla2xxx]
 qla24xx_msix_rsp_q+0x80/0x100 [qla2xxx]
 __handle_irq_event_percpu+0x72/0x450
 handle_irq_event_percpu+0x74/0xf0
 handle_irq_event+0x5e/0x8f
 handle_edge_irq+0x13a/0x320
 handle_irq+0x30/0x40
 do_IRQ+0x91/0x190
 common_interrupt+0xf/0xf
 </IRQ>
RIP: 0010:default_idle+0x31/0x230

Fixes: 8777e4314d ("scsi: qla2xxx: Migrate NVME N2N handling into state machine") # v4.19.
Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:39:46 -04:00
Bart Van Assche
fe6b52c9ad scsi: qla2xxx: Simplify qla24xx_async_abort_cmd()
Make the code easier to read by converting 'goto' statements into
'return' statements.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:09 -04:00
Bart Van Assche
1778a0e7bf scsi: qla2xxx: Remove two superfluous if-tests
This patch fixes the following Coverity complaint:

Null-checking sp->u.iocb_cmd.u.ctarg.rsp suggests that it may be null, but
it has already been dereferenced on all paths leading to the check.

See also commit e374f9f592 ("scsi: qla2xxx: Migrate switch registration commands away from mailbox interface") # v4.16.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:09 -04:00
Bart Van Assche
c6e58160a2 scsi: qla2xxx: Introduce qla2x00_els_dcmd2_free()
This patch reduces code duplication.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:09 -04:00
Bart Van Assche
897def2004 scsi: qla2xxx: Inline the qla2x00_fcport_event_handler() function
Instead of calling qla2x00_fcport_event_handler() and letting the switch
statement inside that function decide which other function to call, call
the latter function directly. Remove the event member from the event_arg
structure because it is no longer needed. Remove the
qla_handle_els_plogi_done() function because it is never called.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:09 -04:00
Bart Van Assche
724361921f scsi: qla2xxx: Report invalid mailbox status codes
It is easy to mix up the QLA_* and the MBS_* status codes. Complain loudly
if that happens.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:09 -04:00
Bart Van Assche
1a20719e07 scsi: qla2xxx: Remove superfluous sts_entry_* casts
The C language supports implicit casting of void pointers to non-void
pointers. Remove explicit sts_entry_* casts that are not necessary.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:09 -04:00
Bart Van Assche
5ec9f9040f scsi: qla2xxx: Let the compiler check the type of the SCSI command context pointer
Split srb_cmd.ctx into two pointers such that the compiler can check the
type of that pointer.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:09 -04:00
Bart Van Assche
88263208dd scsi: qla2xxx: Complain if sp->done() is not called from the completion path
Not calling sp->done() from the command completion path is a severe bug.
Hence complain loudly if that happens.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:09 -04:00
Bart Van Assche
0dcec41acb scsi: qla2xxx: Make sure that aborted commands are freed
The LIO core requires that the target driver callback functions
.queue_data_in() and .queue_status() call target_put_sess_cmd() or
transport_generic_free_cmd(). These calls may happen synchronously or
asynchronously. Make sure that one of these LIO functions is called in case
a command has been aborted. This patch avoids that the code for removing a
session hangs due to commands that do not make progress.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Fixes: 694833ee00 ("scsi: tcm_qla2xxx: Do not allow aborted cmd to advance.") # v4.13.
Fixes: a07100e00a ("qla2xxx: Fix TMR ABORT interaction issue between qla2xxx and TCM") # v4.5.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
bcc8565743 scsi: qla2xxx: Introduce qla2xxx_get_next_handle()
This patch reduces code duplication.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
3cb5f3aeaf scsi: qla2xxx: Modify NVMe include directives
Since struct sg_table is used in nvme-fc-driver.h, include
<linux/scatterlist.h> from that header file.

Since no definitions or declarations from <linux/blk-mq.h> are used in the
qla_nvme.h header file, do not include <linux/blk-mq.h> from that header
file.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
e752a04e1b scsi: qla2xxx: Make qlt_handle_abts_completion() more robust
Avoid that this function crashes if mcmd == NULL.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
85cffefa09 scsi: qla2xxx: Fix a race condition between aborting and completing a SCSI command
Instead of allocating a struct srb dynamically from inside .queuecommand(),
set qla2xxx_driver_template.cmd_size such that struct scsi_cmnd and struct
srb are contiguous. Do not call QLA_QPAIR_MARK_BUSY() /
QLA_QPAIR_MARK_NOT_BUSY() for SRBs associated with SCSI commands. That is
safe because scsi_remove_host() is called before queue pairs are deleted
and scsi_remove_host() waits for all outstanding SCSI commands to finish.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
bdb61b9b94 scsi: qla2xxx: Introduce the function qla2xxx_init_sp()
This patch does not change any functionality but makes the next patch
easier to read.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
6c18a43e3c scsi: qla2xxx: Enable type checking for the SRB free and done callback functions
Since all pointers passed to the srb_t.done() and srb_t.free() functions
have type srb_t, change the type of the first argument of these functions
from void * into struct srb *. This allows the compiler to verify the
argument types for these functions. This patch does not change any
functionality.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
aa20e38bf5 scsi: qla2xxx: Rework key encoding in qlt_find_host_by_d_id()
Use the same approach for encoding the destination ID as the approach used
by qlt_update_vp_map().

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
0f8243e646 scsi: qla2xxx: Set the responder mode if appropriate for ELS pass-through IOCBs
According to the firmware documentation responder mode must be set for ELS
pass-through IOCBs if a response is expected.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
9933c050fe scsi: qla2xxx: Make it explicit that ELS pass-through IOCBs use little endian
According to the firmware documentation the firmware expects all ELS
pass-through IOCB parameters in little endian format. Make this explicit.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
0597fe601a scsi: qla2xxx: Check secondary image if reading the primary image fails
This patch fixes several Coverity complaints about reading data that has
not been initialized.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:08 -04:00
Bart Van Assche
c43e7832ee scsi: qla2xxx: Change the return type of qla24xx_read_flash_data()
This change makes it easier to detect qla24xx_read_flash_data() failures
and also to handle such failures. This change does not modify the behavior
of the driver since all callers ignore the qla24xx_read_flash_data()
return value.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:07 -04:00
Bart Van Assche
df95f39ae7 scsi: qla2xxx: Introduce the be_id_t and le_id_t data types for FC src/dst IDs
Introduce the be_id_t and le_id_t data types for Fibre Channel source and
destination ID formats supported by the firmware instead of using an
uint8_t[3] array. Introduce functions for converting from and to the
port_id_t data types. This patch does not change the behavior of the
qla2xxx driver but improves source code readability and also allows the
compiler to verify the endianness of Fibre Channel IDs.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:07 -04:00
Bart Van Assche
fb3250974a scsi: qla2xxx: Complain if a soft reset fails
Failure of a soft reset is a severe failure. Hence report such failures.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:07 -04:00
Bart Van Assche
527e9b704c scsi: qla2xxx: Use memcpy() and strlcpy() instead of strcpy() and strncpy()
This patch makes the string manipulation code easier to verify.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:07 -04:00
Bart Van Assche
dc6d6d34e1 scsi: qla2xxx: Check the PCI info string output buffer size
Pass the output buffer size to the code that generates a PCI info string
and check the output buffer size while generating a PCI info string.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:07 -04:00
Bart Van Assche
fcef08932d scsi: qla2xxx: Complain if waiting for pending commands times out
Such a timeout is a severe issue. Hence complain if waiting for pending
commands times out. This patch fixes a small bug: it modifies
qla82xx_chip_reset_cleanup() such that the "Done waiting" message is
reported if qla82xx_chip_reset_cleanup() succeeded instead of if that
function failed.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:07 -04:00
Bart Van Assche
bc97c9484b scsi: qla2xxx: Declare fourth qla2x00_set_model_info() argument const
Make it clear to humans and also to the compiler that the string passed
as fourth argument is not modified.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:07 -04:00
Bart Van Assche
e6803efae5 scsi: qla2xxx: Always check the qla2x00_wait_for_hba_online() return value
This patch fixes several Coverity complaints about not always checking
the qla2x00_wait_for_hba_online() return value.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:07 -04:00
Bart Van Assche
c4707fccb3 scsi: qla2xxx: Suppress multiple Coverity complaint about out-of-bounds accesses
This patch does not change any functionality.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:07 -04:00
Bart Van Assche
f91ff36a57 scsi: qla2xxx: Suppress a Coveritiy complaint about integer overflow
This patch fixes the following Coverity complaint:

Unintentional integer overflow (OVERFLOW_BEFORE_WIDEN)
overflow_before_widen: Potentially overflowing expression dma_eng_num *
65536U with type unsigned int (32 bits, unsigned) is evaluated using 32-bit
arithmetic, and then used in a context that expects an expression of type
uint64_t (64 bits, unsigned).

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:07 -04:00
Bart Van Assche
3a392b4f38 scsi: qla2xxx: Remove unreachable code from qla83xx_idc_lock()
This was detected by Coverity.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:06 -04:00
Bart Van Assche
c29282c65d scsi: qla2xxx: Fix qla24xx_process_bidir_cmd()
Set the r??_data_len variables before using these instead of after.

This patch fixes the following Coverity complaint:

const: At condition req_data_len != rsp_data_len, the value of req_data_len
must be equal to 0.
const: At condition req_data_len != rsp_data_len, the value of rsp_data_len
must be equal to 0.
dead_error_condition: The condition req_data_len != rsp_data_len cannot be
true.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Fixes: a9b6f722f6 ("[SCSI] qla2xxx: Implementation of bidirectional.") # v3.7.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:06 -04:00
Bart Van Assche
282d10565e scsi: qla2xxx: Simplify a debug statement
Read the FC port state once instead of twice. This patch fixes the
following Coverity complaint:

Unchecked return value (CHECKED_RETURN)
check_return: Calling atomic_read without checking return value (as is
done elsewhere 80 out of 92 times).

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:06 -04:00
Bart Van Assche
258f0752ef scsi: qla2xxx: Remove dead code
Since sess == NULL before 'goto out_term2' is executed, the code under 'if
(sess)' cannot be reached. Hence remove that code. This was detected by
Coverity.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:06 -04:00
Bart Van Assche
6f153bcf12 scsi: qla2xxx: Complain if parsing the version string fails
This patch fixes a Coverity complaint about not checking the sscanf()
return value.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:06 -04:00
Bart Van Assche
58e060e11b scsi: qla2xxx: Complain if a mailbox command times out
This patch fixes the following Coverity complaint:

Unchecked return value (CHECKED_RETURN)
check_return: Calling wait_for_completion_timeout without checking return
value (as is done elsewhere 14 out of 17 times).

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:06 -04:00
Bart Van Assche
cc74049f35 scsi: qla2xxx: Use strlcpy() instead of strncpy()
This patch fixes several gcc complaints about string truncation.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:06 -04:00
Bart Van Assche
1df627b4f7 scsi: qla2xxx: Do not corrupt vha->plogi_ack_list
Delete the PLOGIN ACK data structure from the vha->plogi_ack_list before
freeing that data structure to avoid that that list gets corrupted.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:06 -04:00
Bart Van Assche
b3e9772d9e scsi: qla2xxx: Report the firmware status code if a mailbox command fails
It is helpful when debugging this driver to have the firmware status code
available if a mailbox command fails. Hence report that firmware status
code.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-12 21:34:06 -04:00