Commit Graph

15471 Commits

Author SHA1 Message Date
Bart Van Assche e656f0d07a scsi: libsas: Annotate fall-through in a switch statement
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:08 -04:00
Bart Van Assche bcba3c22b5 scsi: libsas: Remove a set-but-not-used variable
This was detected by building with W=1.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:08 -04:00
Bart Van Assche 4dec6a8fc5 scsi: libiscsi: Fix indentation
This patch avoids that smatch reports the following:

drivers/scsi/libiscsi.c:1081: iscsi_handle_reject() warn: inconsistent indenting

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:08 -04:00
Bart Van Assche 7475c8ae1b scsi: sg: Fix type of last blk_trace_setup() argument
Avoid that sparse reports the following:

drivers/scsi/sg.c:1114:41: warning: incorrect type in argument 5 (different address spaces)
drivers/scsi/sg.c:1114:41:    expected char [noderef] <asn:1>*arg
drivers/scsi/sg.c:1114:41:    got char *<noident>

This patch does not change any functionality.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:08 -04:00
Bart Van Assche 830cc351bc scsi: sd: Remove a useless comparison
This patch avoids that gcc reports the following warning when
building with W=1:

drivers/scsi/sd.c:315:10: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
  if (val >= 0 && val <= T10_PI_TYPE3_PROTECTION)

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:08 -04:00
Bart Van Assche ed91f7ed38 scsi: sd: Fix indentation
This patch avoids that smatch reports the following:

drivers/scsi/sd.c:3540: sd_suspend_common() warn: inconsistent indenting

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:08 -04:00
Bart Van Assche 0624cbb1e2 scsi: sd: sr: Convert two assignments into warning statements
Before scsi_prep_fn() calls the ULP .init_command() callback
function it stores the SCSI command pointer in request.special.
This means that the SCpnt = rq->special assignments in the sd
and sr drivers assign a pointer to itself. Hence convert these
two assignment statements into warning statements.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:08 -04:00
Bart Van Assche bed2213d01 scsi: Use blk_mq_rq_to_pdu() to convert a request to a SCSI command pointer
Since commit e9c787e65c ("scsi: allocate scsi_cmnd structures as
part of struct request") struct request and struct scsi_cmnd are
adjacent. This means that there is now an alternative to reading
req->special to convert a pointer to a prepared request into a
SCSI command pointer, namely by using blk_mq_rq_to_pdu(). Make
this change where appropriate. Although this patch does not
change any functionality, it slightly improves performance and
slightly improves readability.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:07 -04:00
Bart Van Assche e7008ff5c6 scsi: Document which queue type a function is intended for
Rename several functions to make it easy to see which queue type a
function is intended for.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:07 -04:00
Bart Van Assche 3991e4605d scsi: Convert a strncmp() call into a strcmp() call
This patch avoids that smatch reports the following warning:

drivers/scsi/scsi_sysfs.c:117: check_set() error: strncmp() '"-"' too small (2 vs 20)

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:07 -04:00
Bart Van Assche 3bf2ff6749 scsi: Suppress gcc 7 fall-through warnings reported with W=1
The conclusion of a recent discussion about the new warnings
reported by gcc 7 is that the new warnings reported when building
with W=1 should be suppressed. However, gcc 7 still warns about
fall-through in switch statements when building with W=1. Suppress
these warnings by annotating the SCSI core properly.

See also Linus Torvalds, Lots of new warnings with gcc-7.1.1, 11
July 2017 (https://www.mail-archive.com/linux-media@vger.kernel.org/msg115428.html).

References: commit bd664f6b3e ("disable new gcc-7.1.1 warnings for now")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:08:07 -04:00
Zang Leigang e002e65188 scsi: ufs: reqs and tasks were put in the wrong order
Signed-off-by: Zang Leigang <zangleigang@hisilicon.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:45 -04:00
Dick Kennedy 610448367c scsi: lpfc: lpfc version bump 11.4.0.3
Update driver version to 11.4.0.3

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:44 -04:00
Maurizio Lombardi 286871a666 scsi: lpfc: fix "integer constant too large" error on 32bit archs
cc1: warnings being treated as errors
drivers/scsi/lpfc/lpfc_init.c: In function 'lpfc_get_wwpn':
drivers/scsi/lpfc/lpfc_init.c:3253: error: integer constant is too large for 'long' type

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:44 -04:00
James Smart 44fd7fe3dd scsi: lpfc: Add Buffer to Buffer credit recovery support
Add Buffer to buffer credit recovery support to the driver.  This is a
negotiated feature with the peer that allows for both sides to detect
dropped RRDY's and FC Frames and recover credit.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:43 -04:00
James Smart d58734f05f scsi: lpfc: remove console log clutter
Change hw queue binding messages to info - not error.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:43 -04:00
Dick Kennedy 6b486ce9ee scsi: lpfc: Fix bad sgl reposting after 2nd adapter reset
Port issue was fixed, the hbacmd reset would take more than 8 minutes to
complete.

There were conflicting NVME SGL posting/reposting responsibilities
between lpfc_online()/lpfc_sli4_hba_setup() and
lpfc_nvme_create_localport().  The lpfc_online() causes a REPOST on
existing NVME SGLs which is not released during the fc port reset.
However, lpfc_nvme_create_localport() wants to allocate new NVME buffers
and post them. Both cancelled out each other which had a side effect of
hosing the mailbox handling that was used to remove the sgl lists -
causing multiple 60s mbx timeouts.

Fix by preserving all SGL lists over the fc port reset.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:42 -04:00
Dick Kennedy a145fda381 scsi: lpfc: Fix nvme target failure after 2nd adapter reset
The nonrecovery occurred because the lpfc nvme initiator function did
not reestablish its localport creation with the nvme host transport in
lpfc_oneline.  Because of that, an NVME rport binding could not take
place.

Corrected by recreating the localport in the adapter reset recovery
routine.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:42 -04:00
Dick Kennedy c6e0c92506 scsi: lpfc: Fix relative offset error on large nvmet target ios
If the nvmet_fc transport breaks an io into multiple sequences, the
driver will improperly set the relative offset on the 2nd through N
sequences.

Correct by properly formatting the hw cmd so the relative offset is
picked up from the hw cmd.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:41 -04:00
Dick Kennedy 66d7ce93a0 scsi: lpfc: Fix MRQ > 1 context list handling
Various oops including cpu LOCKUPs were seen.

For asynchronously received ius where the driver must assign exchange
resources, the resources were on a single get (free) list and put list
(finished, waiting to be put on get list). As all cpus are sharing the
lists, an interrupt for a receive frame may have to wait for all the
other cpus to place their done work onto the put list before it can
acquire the lock to pull from the list.

Fix by breaking the resource lists into per-cpu lists or at least more
than 1 list with cpu's sharing the lists). A cpu would allocate from the
free list for its own cpu, and put its done work on the its own put list
- avoiding the contention. As cpu load may vary, when empty, a cpu may
grab from another cpu, thereby changing resource distribution.  But
searching for a resource only occurs on 1 or a few cpus until a single
resource can be allocated. if the condition reoccurs, it starts looking
at a different cpu.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:41 -04:00
Dick Kennedy e3e2863def scsi: lpfc: Limit amount of work processed in IRQ
Various oops being seen on being in the ISR too long and cpu lockups,
when under heavy load.

The amount of work being posted off of completion queues kept the ISR
running almost all the time

Correct the issue by limiting the amount of work per iteration.

[mkp: typo]

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:40 -04:00
Dick Kennedy 176de5bb20 scsi: lpfc: Correct issues with FAWWN and FDISCs
When using fabric-assigned WWNs, the switch doesn't like copy of the
FLOGI payload, which includes valid VVL bits, to be used as the FDISC
payload.

Rather than wait for corrected switch firmware, ensure the VVL bits are
marked invalid on FDISCs.

[mkp: typo]

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:39 -04:00
Dick Kennedy 991f0c0e33 scsi: lpfc: Fix NVME PRLI handling during RSCN
A race condition was found whereby the initiator would receive the RSCN
for a new NVME device before it had a chance to register its FC4 support
with the fabric. Thus, when queried by the initiator, it would see that
the target supported FC-NVME.

Corrected by making the assumption that the target always supports
FC-NVME thus a PRLI is sent. It's ok for the target to reject it.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:39 -04:00
Dick Kennedy 4b40d02b8b scsi: lpfc: Fix crash in lpfc nvmet when fc port is reset
In adapter reset tests, an oops was seen with a NULL pointer in
lpfc_free_rq_buffer+0x20/0x60

The driver is failing to properly repost the nvmet sgl list when
recovering from the reset. Thus the driver eventually trys to walk an
errant buffer list.

Corrected the sgl buffer recovery as well as strengthening the
initialization of the bufferlist.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:38 -04:00
Dick Kennedy 4adc041b4d scsi: lpfc: Fix duplicate NVME rport entries and namespaces.
After lip, the driver sometimes would have two rports for the same
device, allowing the namespaces to be duplicated by nvme.

In lpfc_plogi_confirm_nport() the driver was not swapping the nrport
maintained by the ndlp's undergoing address swapping. This allowed the
2nd rport to sneak in as it was considered a separate device.

This patch adds the fixes to Swap the nrport in each ndlp and take care
of the reference counts on the ndlps similar to FCP rports.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:38 -04:00
Dick Kennedy 8db1c2b3e7 scsi: lpfc: Fix handling of FCP and NVME FC4 types in Pt2Pt topology
After link bounce in a NVME Pt2Pt config, the driver managed to map the
same nport twice, resulting in multiple device nodes for the same
namespace.

In Pt2Pt, the driver must send PRLI's for both (scsi) FCP and NVME
rather than using fabric aids. The driver was inconsistent on handling
various PRLI completions, especially rejects, which had reject codes
cross the different protocol PRLI completions.

Fixed to perform the following: if nvmet mode (fc port can only be a
nvme target) - rejects all unsolicitly FCP PRLI's. Never issues a FCP
PRLI.

The multiple protocol PRLI's are sent simultaneously. However, driver
will now only state transition after both PRLI's are complete. New flags
were added to aid tracking the responses from the different PRLI's.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:37 -04:00
Dick Kennedy cd22d6057c scsi: lpfc: Correct return error codes to align with nvme_fc transport
Modify driver return error codes to align with host nvme transport.

Driver isn't returning Exxx error codes to properly reflect out of
resource or connectivity conditions (-EBUSY), yet there were hard error
conditions returning -EBUSY.

Ensure the following situations return the proper return code:

 - Temporary failures or temporary resource availability: -EBUSY

 - Connectivity issues: -ENODEV

All others are treated as hard errors and return an -Exxx value that
indicates the type of error.

Also, lpfc_sli4_issue_wqe() was modified to not translate error from
-Exxx to WQE state.  This allows lpfc_nvme_fcp_io_submit() routine to
just return whatever -E value was returned from other routines.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:37 -04:00
Dick Kennedy ffb70cd6b6 scsi: lpfc: convert info messages to standard messages
Transitioned some informational discovery messages to now always be
displayed when log_verbose is set.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:36 -04:00
Dick Kennedy bb6a8a2c24 scsi: lpfc: Fix oops when NVME Target is discovered in a nonNVME environment
lpfc oops when it discovers a NVME target but is configured for SCSI
only operation. Oops is in lpfc_nvme_register_port+0x33/0x300.

The localport is not valid so it should not have been referenced.

Added validity check for localport

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:36 -04:00
Dick Kennedy d2aa48761e scsi: lpfc: Fix rediscovery on switch blade pull
When the switch blade is pulled out then plugged back in, the driver
does not issue a PLOGI to the target

When the switch blade is pulled out, it does not reset the link. The
driver ends up issuing a LOGO to the target, and finally sees devloss.
Since the driver believes that a LOGO is outstanding, it does not issue
a PLOGI to the target upon link up

Correct by placing the ndlp in UNUSED state When devloss happens in
LOGO_ISSUE state.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:35 -04:00
Dick Kennedy 2877cbffb7 scsi: lpfc: Fix loop mode target discovery
The driver does not discover targets when in loop mode.

The NLP type is correctly getting set when a fabric connection is
detected but, not for loop. The unknown NLP type means that the driver
does not issue a PRLI when in loop topology. Thus target discovery
fails.

Fix by checking the topology during discovery.  If it is loop, set the
NLP FC4 type to FCP.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:35 -04:00
Dick Kennedy 1fe68477d2 scsi: lpfc: Fix plogi collision that causes illegal state transition
Message "0271 Illegal State Transition: node" seen in logs, all luns are
unuseable for that target.

A window exists in the rcv_plogi path where if the state is plogi issue
but the driver has not issued a plogi, then two reglogins will be sent
for the same RPI. The first one to complete will advance the state to
prli issue the second one will be detected as an illegal state, and
leave the node in an unusable state.

Correct the completion routine for the PLOGI ACC that detects the state
change when the driver starts discovery on the node again and drop the
REGLOGIN mailbox command.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:34 -04:00
himanshu.madhani@cavium.com 38c980454a scsi: qla2xxx: Update driver version to 10.00.00.01-k
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:34 -04:00
Sawan Chandak d61cca60aa scsi: qla2xxx: Do not call abort handler function during chip reset
If there are IO's running and host reset or chip reset is triggered,
IO's can fail due to rport time out. During chip reset recovery process,
driver notifies the transport layer that remote port no longer exist, by
calling fc_remote_port_delete(). When this function is called, it
actually delays deletion by "blocking" it. It sets the remote port state
to "FC_PORTSTATE_BLOCKED" and sets FC_RPORT_DEVLOSS_PENDING.  When
driver tries to abort the command by calling its abort handler function,
abort handler will wait until remote port state is blocked state or wait
for dev_loss_tmo time. Due to this blocking, rport times out and results
in an IO failure. This patch adds a check for any active reset process
before calling abort handler function.

[mkp: typo]

Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:33 -04:00
Giridhar Malavali ce0779c7d7 scsi: qla2xxx: Ability to process multiple SGEs in Command SGL for CT passthrough commands.
Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:32 -04:00
Joe Carnuccio 998722d183 scsi: qla2xxx: Skip zero queue count entry during FW dump capture
If queue count is zero while reading FW dump template, for entry
T263/T274, skip capturing those entries during FW dump capture.

Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:32 -04:00
Quinn Tran a07fc0a42e scsi: qla2xxx: Recheck session state after RSCN
When RSCN is delivered for specific remote port. Use ADISC to verify the
session is still valid or not.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:31 -04:00
Michael Hernandez d213a4b7a5 scsi: qla2xxx: Increase ql2xmaxqdepth to 64
ql2xmaxqdepth is the module parameter that seeds the per target
queue depth in the Scsi midlayer (sdev->queue_depth). Performance
testing revealed that increasing this value would improve IOPS
numbers under certain workloads.

Signed-off-by: Michael Hernandez <michael.hernandez@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:31 -04:00
himanshu.madhani@cavium.com 043dc1d7e8 scsi: qla2xxx: Enable Async TMF processing
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:30 -04:00
Quinn Tran bdbe24de28 scsi: qla2xxx: Cleanup NPIV host in target mode during config teardown
When we tear down the NPIV host configuration in target mode, the
qla_tgt struct was left dangling on the global list. This patch cleans
up link list and frees memory.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:30 -04:00
Joe Carnuccio 1f4c7c380b scsi: qla2xxx: Add LR distance support from nvram bit
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:29 -04:00
Sawan Chandak 92d4408e34 scsi: qla2xxx: Add support for minimum link speed
Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:29 -04:00
Joe Carnuccio 343f7def32 scsi: qla2xxx: Remove potential macro parameter side-effect in ql_dump_regs()
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:28 -04:00
Joe Carnuccio 050dc76afb scsi: qla2xxx: Print correct mailbox registers in failed summary
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:28 -04:00
Quinn Tran 72fcd4eb3c scsi: qla2xxx: Fix task mgmt handling for NPIV
Fix task management response for NPIV Target mode.
Current code uses the wrong vp index.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:27 -04:00
Joe Carnuccio a14c771125 scsi: qla2xxx: Allow SNS fabric login to be retried
If SNS fabric login fails, set loop resync flag to retry via dpc.

Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:27 -04:00
Joe Carnuccio b85e0957b8 scsi: qla2xxx: Add timeout ability to wait_for_sess_deletion().
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:26 -04:00
Joe Carnuccio fed0f68aa1 scsi: qla2xxx: Move logging default mask to execute once only.
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:25 -04:00
Joe Carnuccio f3caa9905d scsi: qla2xxx: Use sp->free instead of hard coded call.
Calling sp->free() ensures the context-correct free routine is called.

Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:25 -04:00
Joe Carnuccio e0824e69bd scsi: qla2xxx: Prevent sp->free null/uninitialized pointer dereference.
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:24 -04:00
Quinn Tran e4e3a2ce95 scsi: qla2xxx: Add ability to autodetect SFP type
SFP can come in 2 formats: short range/SR and long range/LR.  For LR,
user the can increase the number of Buffer to Buffer credits between end
points via Cavium's command line tool.  By default, FW uses a lower BB
Credit value optimized for SR.  This patch will read the SFP for each
link up event and during chip reset sequence. If the SFP type and
setting are mismatch, then the chip is reset 1 time to use the
appropriate setting.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:24 -04:00
Quinn Tran b2e8ae3f0e scsi: qla2xxx: Use fabric name for Get Port Speed command
The Get Port Speed switch command needs the fabric port name of the
remote device.  Current code uses the registered WWPN.

Fixes: 726b854870 ("qla2xxx: Add framework for async fabric discovery")
Cc: <stable@vger.kernel.org> # 4.10+
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:23 -04:00
Quinn Tran 18ada18e5e scsi: qla2xxx: Change ha->wq max_active value to default
Update ha->wq max_active from 1 to default. MQ interrupts are queued up
via this work queue. This allows interrupts to be process in parrallel,
instead of serialized by the work queue.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:23 -04:00
Quinn Tran dc62c3bea8 scsi: qla2xxx: Remove extra register read
Remove extra register read for each interrupt for performance
improvement.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:22 -04:00
Quinn Tran 1608cc4abf scsi: qla2xxx: Fix NPIV host enable after chip reset
For NPIV ports, call configure_hba() so that NPIV ports can proceed to
loop initialization.

Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:21 -04:00
Sawan Chandak fcc5b5cd72 scsi: qla2xxx: Use BIT_6 to acquire FAWWPN from switch
If FA-WWPN feature disabled on the switch side and enabled for the
adapter, then driver would update the port name with switch port name.

This patch fixes issue by checking correct BIT flag to validate.

Fixes: 41dc529a46 ("qla2xxx: Improve RSCN handling in driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:21 -04:00
Duane Grigsby a17305954d scsi: qla2xxx: Fix system panic due to pointer access problem
[ 1013.772926] BUG: unable to handle kernel paging request at 0000000300000020
[ 1013.772950] IP: qla24xx_els_ct_entry.isra.17+0x78/0x2a0 [qla2xxx]
[ 1013.772951] PGD 0
[ 1013.772952] P4D 0
[ 1013.772952]
[ 1013.772953] Oops: 0000 [#1] SMP
[ 1013.772955] Modules linked in: qla2xxx(+) scsi_transport_fc nvme_fc
nvme_fabrics nvme_core netconsole configfs af_packet iscsi_ibft
iscsi_boot_sysfs xfs intel_rapl sb_edac libcrc32c x86_pkg_temp_thermal
intel_powerclamp coretemp mgag200 kvm_intel ttm kvm drm_kms_helper
ipmi_ssif irqbypass tg3 drm fb_sys_fops crct10dif_pclmul syscopyarea
crc32_pclmul ghash_clmulni_intel ptp pcbc sysfillrect pps_core
aesni_intel joydev aes_x86_64 sysimgblt crypto_simd iTCO_wdt libphy
iTCO_vendor_support i2c_algo_bit glue_helper ipmi_si lpc_ich hpwdt
ioatdma cryptd ipmi_devintf pcspkr mfd_core pcc_cpufreq ipmi_msghandler
hpilo thermal dca button shpchp btrfs xor raid6_pq hid_generic usbhid
sr_mod cdrom sd_mod ata_generic crc32c_intel serio_raw ata_piix ahci
libahci uhci_hcd ehci_pci ehci_hcd libata usbcore hpsa scsi_transport_sas
[ 1013.772994]  sg scsi_mod autofs4
[ 1013.772998] CPU: 0 PID: 374 Comm: systemd-journal Not tainted 4.13.0-rc1-2-default #2
[ 1013.772999] Hardware name: HP ProLiant DL380p Gen8, BIOS P70 07/15/2012
[ 1013.773000] task: ffff88082c188380 task.stack: ffffc90004d7c000
[ 1013.773011] RIP: 0010:qla24xx_els_ct_entry.isra.17+0x78/0x2a0 [qla2xxx]
[ 1013.773012] RSP: 0000:ffff88042f603d90 EFLAGS: 00010082
[ 1013.773013] RAX: ffff88039f723ac8 RBX: ffff88039f723ac8 RCX: ffff8803a2e18010
[ 1013.773014] RDX: ffff88039f723ac0 RSI: ffff88042f603dc4 RDI: ffff88041b6787c0
[ 1013.773015] RBP: ffff88042f603e00 R08: 0000000000000002 R09: 000000000000000d
[ 1013.773016] R10: 0000000000000002 R11: 0000000000000000 R12: ffff8803a2e80080
[ 1013.773016] R13: ffff88041b6787c0 R14: 0000000300000000 R15: 0000000000000102
[ 1013.773018] FS:  00007fa2e0a73880(0000) GS:ffff88042f600000(0000) knlGS:0000000000000000
[ 1013.773019] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1013.773020] CR2: 0000000300000020 CR3: 000000042cd7e000 CR4: 00000000000406f0
[ 1013.773021] Call Trace:
[ 1013.773022]  <IRQ>
[ 1013.773026]  ? consume_skb+0x34/0xa0
[ 1013.773040]  qla24xx_process_response_queue+0x319/0x700 [qla2xxx]
[ 1013.773050]  qla24xx_msix_rsp_q+0x7b/0xd0 [qla2xxx]
[ 1013.773054]  __handle_irq_event_percpu+0x3c/0x1b0
[ 1013.773056]  handle_irq_event_percpu+0x23/0x60
[ 1013.773057]  handle_irq_event+0x42/0x70
[ 1013.773059]  handle_edge_irq+0x8f/0x190
[ 1013.773062]  handle_irq+0x1d/0x30
[ 1013.773065]  do_IRQ+0x48/0xd0
[ 1013.773067]  common_interrupt+0x93/0x93
[ 1013.773068] RIP: 0033:0xed622c6e42
[ 1013.773069] RSP: 002b:00007ffee8b5c820 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff17
[ 1013.773071] RAX: 000000ed6316a3f0 RBX: 000000ed6316a840 RCX: 00000000000c4e33
[ 1013.773071] RDX: 000000ed6316a878 RSI: 000000ed6316a840 RDI: 000000ed631682d0
[ 1013.773072] RBP: 0000000000000001 R08: 0000000000000001 R09: 000000ed63179b70
[ 1013.773073] R10: 000000000005f6f8 R11: 0000000000000202 R12: 0000000000000001
[ 1013.773074] R13: 00007ffee8b5c85c R14: 000000ed6316a840 R15: 00007ffee8b5c850
[ 1013.773074]  </IRQ>
[ 1013.773076] Code: a9 8a 9a e0 48 8d 75 c4 48 89 da 4c 89 e1 4c 89 ef
e8 54 6e fb ff 48 85 c0 48 89 c3 0f 84 0e 02 00 00 44 0f b7 48 36 4c 8b
70 58 <4d> 8b 7e 20 41 8d 41 fd 66 83 f8 0c 77 6c 0f b7 c0 ff 24 c5 88
[ 1013.773102] RIP: qla24xx_els_ct_entry.isra.17+0x78/0x2a0 [qla2xxx] RSP: ffff88042f603d90
[ 1013.773102] CR2: 0000000300000020
[ 1013.773129] ---[ end trace 532363559924f426 ]---
[ 1013.773131] Kernel panic - not syncing: Fatal exception in interrupt
[ 1013.777719] Kernel Offset: disabled
[ 1013.827528] ---[ end Kernel panic - not syncing: Fatal exception in interrupt

Signed-off-by: Duane Grigsby <Duane.Grigsby@cavium.com>
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:20 -04:00
Sawan Chandak efdb57607f scsi: qla2xxx: Handle PCIe error for driver
Driver will perform following

- Set PFLG_DRIVER_REMOVING flag and do not disable PCIe error reporting
  during adapter shutdown.
- If PCIe device count is already zero, return correct error type from
  PCI error interface.
- When device is offline, return correct error type from PCIe error
  path.
- If there is board disable thread active during shutdown and PCIe
  device count is zero then cancel scheduling board disable thread
  during shutdown and return.

Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:20 -04:00
Darren Trap d7936a96e4 scsi: qla2xxx: Fix WWPN/WWNN in debug message
Signed-off-by: Darren Trap <darren.trap@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:19 -04:00
Duane Grigsby cf19c45dba scsi: qla2xxx: Add command completion for error path
The driver held spinlocks during callbacks for NVME errors which
resulted in a deadlock because recovery LS cmds needed the same lock.

Signed-off-by: Duane Grigsby <duane.grigsby@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:19 -04:00
himanshu.madhani@cavium.com e6373f33a6 scsi: qla2xxx: Update fw_started flags at qpair creation.
Fixes: 4b60c82736 ("scsi: qla2xxx: Add fw_started flags to qpair")
Cc: <stable@vger.kernel.org>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:18 -04:00
Michael Hernandez b7edfa235e scsi: qla2xxx: Fix target multiqueue configuration
Following error will be logged in to message file while trying to
configure target with multiqueue.

"Cmd 0x1f aborted with timeout since ISP Abort is pending"
"qla25xx_init_queues Rsp que: 1 init failed."

Fixes: 82de802ad4 ("scsi: qla2xxx: Preparation for Target MQ.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Michael Hernandez <michael.hernandez@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:18 -04:00
Joe Carnuccio 6e98095f8f scsi: qla2xxx: Correction to vha->vref_count timeout
Fix incorrect second argument for wait_event_timeout()

Fixes: c4a9b538ab ("qla2xxx: Allow vref count to timeout on vport delete.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:17 -04:00
Shivasharan S 6ac385df94 scsi: megaraid_sas: driver version upgrade
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:17 -04:00
Shivasharan S 5dd977e3bd scsi: megaraid_sas: call megasas_dump_frame with correct IO frame size
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:16 -04:00
Shivasharan S 2d2c233167 scsi: megaraid_sas: modified few prints in OCR and IOC INIT path
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:16 -04:00
Shivasharan S ba1477aa70 scsi: megaraid_sas: replace internal FALSE/TRUE definitions with false/true
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:15 -04:00
Shivasharan S eb3fe263a4 scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead
After a kill adapter, since the cmd_status is not set, the IOCTLs will
be hung in driver resulting in application hang.  Set cmd_status
MFI_STAT_WRONG_STATE when completing pended IOCTLs.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: stable@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:14 -04:00
Shivasharan S def3e8dfe9 scsi: megaraid_sas: use vmalloc for crash dump buffers and driver's local RAID map
Driver's local RAID map is accessed frequently. We will first try to get
memory from __get_free_pages. If this fails, fall back to using vmalloc.
For crash dump buffers always prefer vmalloc.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:14 -04:00
Shivasharan S 28661c885c scsi: megaraid_sas: Use SMID for Task abort case only
In TM code, smid_task is valid only in case of task aborts.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:13 -04:00
Shivasharan S 91b3d9f006 scsi: megaraid_sas: Check valid aen class range to avoid kernel panic
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: stable@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:13 -04:00
Shivasharan S 8823abeddb scsi: megaraid_sas: Fix endianness issues in DCMD handling
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:12 -04:00
Shivasharan S 690e9c3885 scsi: megaraid_sas: Do not re-fire shutdown DCMD after OCR
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:12 -04:00
Shivasharan S 14298cf320 scsi: megaraid_sas: Call megasas_complete_cmd_dpc_fusion every 1 second while there are pending commands
megasas_wait_for_outstanding_fusion checks for pending commands every 1
second. But megasas_complete_cmd_dpc_fusion is only called every 5
seconds.  If the commands are already completed by firmware, there is an
additional delay of 5 seconds before driver will process completion for
these commands.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:11 -04:00
Shivasharan S bdb5c55fff scsi: megaraid_sas: Use synchronize_irq in target reset case
Similar to task abort case, use synchronize_irq API in target reset
case.  Also, remove redundant call to megasas_complete_cmd_dpc_fusion
after calling megasas_sync_irqs in task abort case.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:11 -04:00
Shivasharan S e636a7a430 scsi: megaraid_sas: set minimum value of resetwaittime to be 1 secs
Setting resetwaittime to 0 during a FW fault will result in driver not
calling the OCR.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: stable@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:10 -04:00
Shivasharan S ed2983f458 scsi: megaraid_sas: mismatch of allocated MFI frame size and length exposed in MFI MPT pass through command
Driver allocated 256 byte MFI frames bytes but while sending MFI frame
(embedded inside chain frame of MPT frame) to firmware, driver sets the
length as 4k. This results in DMA read error messages during boot.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: stable@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:10 -04:00
Gustavo A. R. Silva 44ed33e6c5 scsi: lpfc: remove useless code in lpfc_sli4_bsg_link_diag_test
Remove variable assignments. The value stored in local variable _rc_ is
overwritten at line 2448:rc = lpfc_sli4_bsg_set_link_diag_state(phba,
0); before it can be used.

Addresses-Coverity-ID: 1226935
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:09 -04:00
Todd Poynor 6a8dadcca8 scsi: sg: protect against races between mmap() and SG_SET_RESERVED_SIZE
Take f_mutex around mmap() processing to protect against races with the
SG_SET_RESERVED_SIZE ioctl.  Ensure the reserve buffer length remains
consistent during the mapping operation, and set the "mmap called" flag
to prevent further changes to the reserved buffer size as an atomic
operation with the mapping.

[mkp: fixed whitespace]

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:09 -04:00
Todd Poynor 8d26f49111 scsi: sg: recheck MMAP_IO request length with lock held
Commit 1bc0eb0446 ("scsi: sg: protect accesses to 'reserved' page
array") adds needed concurrency protection for the "reserve" buffer.
Some checks that are initially made outside the lock are replicated once
the lock is taken to ensure the checks and resulting decisions are made
using consistent state.

The check that a request with flag SG_FLAG_MMAP_IO set fits in the
reserve buffer also needs to be performed again under the lock to ensure
the reserve buffer length compared against matches the value in effect
when the request is linked to the reserve buffer.  An -ENOMEM should be
returned in this case, instead of switching over to an indirect buffer
as for non-MMAP_IO requests.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:08 -04:00
Dan Carpenter 55e1f9f088 scsi: hpsa: fix the device_id in hpsa_update_device_info()
The parentheses are in the wrong place so we specify the length as
"sizeof(this_device->device_id) < 0" which is zero.

Fixes: 988b87edd231 ("scsi: hpsa: Ignore errors for unsupported LV_DEVICE_ID VPD page")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:08 -04:00
Arvind Yadav 78453a31d5 scsi: aha1542: constify pnp_device_id
pnp_device_id are not supposed to change at runtime. All functions
working with pnp_device_id provided by <linux/pnp.h> work with const
pnp_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:07 -04:00
weiping zhang 92227b8d3d scsi: scsi-sysfs: Adjust error returned for adapter reset request
If scsi_host_template->host_reset is NULL and the user requests an
adapter reset through

	echo adapter > /sys/class/scsi_host/hostx/host_reset

-EINVAL will be returned even though the "adapter" argument is perfectly
valid.

Change this so that we only return -EINVAL if the provided string is
invalid.  If the host does not implement a ->host_reset function we'll
return -EOPNOTSUPP.

[mkp: tweaked patch description]

Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:06 -04:00
Hannes Reinecke 085e56766f scsi: ch: add refcounting
struct scsi_changer needs refcounting as the device might be removed
while the fd is still open.

[mkp: whitespace]

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:06 -04:00
Gustavo A. R. Silva db269932b9 scsi: pmcraid: fix duplicated code for different branches
Refactor code in order to avoid identical code for different branches.

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:05 -04:00
Arvind Yadav 60747936bd scsi: ncr5380: constify pnp_device_id
pnp_device_id are not supposed to change at runtime. All functions
working with pnp_device_id provided by <linux/pnp.h> work with const
pnp_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:05 -04:00
Chad Dupuis b7fa2cbda5 scsi: qedf: Update driver version to 8.20.5.0.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:04 -04:00
Chad Dupuis 0516abdf2d scsi: qedf: Fix up modinfo parameter name for 'debug' in modinfo output.
Because we were passing 'qedf_debug' instead of 'debug' to the
MODULE_PARM_DESC() macro, modinfo listed the parameter name as 'qedf_debug'
instead of it's proper name 'debug'.  Correct the parameter name.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:04 -04:00
Chad Dupuis 428ca6423e scsi: qedf: Covert single-threaded workqueues to regular workqueues.
There is no ordering required for the various workqueues the driver uses
so they can be converted to regular workqueues.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:03 -04:00
Chad Dupuis cf29116375 scsi: qedf: Corrent VLAN tag insertion in fallback VLAN case.
Currently in the driver the qedf_ctx attribute vlan_hw_insert is used to
which whether to insert a VLAN tag in FIP frames (except for FIP VLAN
request which is explicitly sent out untagged at least from the driver's
point of view).

When we receive a FIP VLAN response, we set qedf->vlan_hw_insert to 0 which
makes the qedf_fip_send function insert the VLAN.  However when we exhaust
our FIP VLAN retries, we do not set qedf->vlan_hw_insert to 0 which means
that the driver will not tag the FIP frame with the correct VLAN ID.  The
result that was observed on the wire is that some entity either in the LL2
or L2 firmware is adding a NULL VLAN tag which can cause FIP solicitation
to fail.

The offload FCoE frame function, qedf_xmit, does not use the vlan_hw_insert
attribute to decide whether to tag frames with the FIP/FCoE VLAN.  Instead
it unilaterially tags the offload frames with the VLAN ID stored in
qedf->vlan_id. This is the correct behavior so the driver can guarantee
that non-offload FIP frames go out with the correct VLAN ID.

Also use the Linux network layer helpers instead of doing the VLAN insert
manually.

Also fix setting the fallback VLAN so that it used the module parameter and
is not hardcoded to 1002 (though 1002 is the default).

[mkp: fixed typo]

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:03 -04:00
Chad Dupuis a3cd42a9d6 scsi: qedf: Use granted MAC from the FCF for the FCoE source address if it is available.
Currently in the driver we've been using the fc_fcoe_set_mac() function to
set the source MAC for FCoE traffic.  This works well in most cases as it
uses the spec. default FCF-MAC.  However, if the administrator changes the
FCF-MAC switch, then any FCoE traffic we send will be dropped by the
switch.

Instead we should check the granted MAC from the FLOGI payload and use that
address if it is present.  Otherwise, fall back to using the the default
FCF-MAC and the fabric ID of the port as the FCoE MAC address.

Once this address is known we need to set it when doing non-offload
traffic, offload traffic and setting the data_src_address libfcoe uses for
FIP keep alive messages.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:02 -04:00
Chad Dupuis 01fd76a765 scsi: qedf: Set WWNN and WWPN based on values from qed.
If dev_info.wwpn and dev_info.wwnn are set by qed use these values to set
the WWNs of the port. Otherwise fall back to the old method using
fcoe_wwn_from_mac().

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:02 -04:00
Colin Ian King b4a028a570 scsi: qla2xxx: fix spelling mistake of variable sfp_additonal_info
Trivial fix to variable name, sfp_additonal_info should be
sfp_additional_info (add in missing i).

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:01 -04:00
Dan Carpenter 59e3da5870 scsi: osst: silence underflow warning in osst_verify_frame()
The code looks like this:

	i = ntohl(aux->filemark_cnt);
	if (STp->header_cache != NULL && i < OS_FM_TAB_MAX && (i > STp->filemark_cnt ||
	    STp->first_frame_position - 1 != ntohl(STp->header_cache->dat_fm_tab.fm_tab_ent[i]))) {

If i is negative then it's less than OS_FM_TAB_MAX so we read before
the start of the STp->header_cache->dat_fm_tab.fm_tab_ent[] array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:01 -04:00
Colin Ian King 32690e0b56 scsi: osst: add missing indent on a for loop statement
The for loop is statement is missing an indent, add it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:00 -04:00
Colin Ian King bbaf61e2e9 scsi: mpt3sas: fix pr_info message continuation
An optional discovery status should be printed with a pr_cont and needs
a leading space to make it more readable. The final new line should also
be a pr_cont and the indentation is out by one, so fix that too.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:59 -04:00
Hannes Reinecke dc56ce12d5 scsi: ses: make page2 support optional
Simple subenclosures do not need to support SES page 2, so make it
optional.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:59 -04:00
Hannes Reinecke 81b59d7565 scsi: ses: Fixup error message 'failed to get diagnostic page 0xffffffea'
The printk was using the result as argument, leading to a slightly
confusing log message.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:58 -04:00
Hannes Reinecke acf8ab9a85 scsi: ses: check return code from ses_recv_diag()
We should be checking the return code from ses_recv_diag() to avoid
accessing invalid data.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:58 -04:00
Hannes Reinecke c8cd71f1f3 scsi: hpsa: Remove 'hpsa_allow_any' module option
As the cciss driver has been removed there are no overlapping
PCI IDs anymore, and the 'hpsa_allow_any' flag can be removed.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:57 -04:00
Hannes Reinecke 253d2464df scsi: cciss: Drop obsolete driver
The hpsa driver now has support for all boards the cciss driver
used to support, so this patch removes the cciss driver and
make hpsa an alias to cciss.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:57 -04:00
Hannes Reinecke 45f769b2f8 scsi: hpsa: do not print errors for unsupported report luns format
Legacy boards might not support the 'extended' report luns format,
but as this is to be expected we don't need to print out an error here.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:56 -04:00
Hannes Reinecke 65e8697ee6 scsi: hpsa: Ignore errors for unsupported LV_DEVICE_ID VPD page
Legacy boards might not support the LV_DEVICE_ID VPD page, so
we shouldn't print out an error message here.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:56 -04:00
Hannes Reinecke 4d17944a47 scsi: hpsa: disable volume status check for legacy boards
Legacy boards might not support volume status, so assume
the volume is online here.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:55 -04:00
Hannes Reinecke 135ae6edeb scsi: hpsa: add support for legacy boards
Add support for legacy boards, ensuring to enable the driver for
those boards only when 'hpsa_allow_any' is set.
The attribute 'legacy_board' is set to '1' if the device is
a legacy board, and '0' otherwise.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:55 -04:00
Christophe JAILLET 9ff870417e scsi: cxlflash: Fix an error handling path in 'cxlflash_disk_attach()'
'rc' is known to be 0 at this point.  If 'create_context()' fails,
returns -ENOMEM instead of 0 which means success.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:54 -04:00
Helge Deller c0e8ed04b3 scsi: sym53c8xx: Avoid undefined behaviour
On parisc I see this UBSAN warning with a sym53c896:

 UBSAN: Undefined behaviour in ./drivers/scsi/sym53c8xx_2/sym_hipd.c:762:24
 index -1903078336 is out of range for type 'u32 [7]'

Avoid this warning by switching to div64_ul().

[mkp: fix typo]

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:54 -04:00
Hannes Reinecke 8a97712e53 scsi: make 'state' device attribute pollable
While the 'state' attribute can (and will) change occasionally,
calling 'poll()' or 'select()' on it fails as sysfs is never
notified that the state has changed.
With this patch calling 'poll()' or 'select()' will work
properly.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:53 -04:00
Hannes Reinecke 8cd1ec78ca scsi: scsi_lib: rework scsi_internal_device_unblock_nowait()
Rework scsi_internal_device_unblock_nowait() into using a switch
statement. No functional changes.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:53 -04:00
Arvind Yadav fe083323bb scsi: esas2r: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with const
pci_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:52 -04:00
Richard W.M. Jones 582b0ab200 scsi: virtio: virtio_scsi: Set can_queue to the length of the virtqueue.
Since switching to blk-mq as the default in commit 5c279bd9e4
("scsi: default to scsi-mq"), virtio-scsi LUNs consume about 10x as
much kernel memory.

qemu currently allocates a fixed 128 entry virtqueue.  can_queue
currently is set to 1024.  But with indirect descriptors, each command
in the queue takes 1 virtqueue entry, so the number of commands which
can be queued is equal to the length of the virtqueue.

Note I intend to send a patch to qemu to allow the virtqueue size to be
configured from the qemu command line.

Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:51 -04:00
Manish Rangankar 42d7c10f23 scsi: qedi: Limit number for CQ queues.
[qed_sp_iscsi_func_start:189(host_7-0)]Cannot satisfy CQ amount. Queues
requested 8, CQs available 4. Aborting function start

Above condition will resolve as management firmware is capable of
telling us the number of CQs available for a given PF, qed will
communicate the same number to qedi, So that qedi will know how much CQs
are allowed.

Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:50 -04:00
John Garry 30b67de31b scsi: hisi_sas: remove driver versioning
The driver version is not updated with changes to the driver, so it has
no value, so just get rid of it.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:50 -04:00
John Garry 76aae5f60b scsi: hisi_sas: replace kfree with scsi_host_put
Instances of kfree(shost) should be replaced with scsi_host_put().

In addition, a missing scsi_host_put() is added for error path in
hisi_sas_shost_alloc_pci() and v3 driver removal.

Signed-off-by: Pan Bian <bianpan2016@163.com> # For main.c changes
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:49 -04:00
John Garry 5aec704f0d scsi: hisi_sas: remove phy_down_v3_hw() res variable
Variable res only holds value 0, so remove it.

This cleans up a coccicheck warning.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:49 -04:00
Xiang Chen 2400620c1f scsi: hisi_sas: add phy_set_linkrate_v3_hw()
Add function to set linkrate for v3 hw.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:48 -04:00
Xiang Chen 056e4cc66c scsi: hisi_sas: update some v3 register init settings
This patch updates some register setting according to recommendation
from HW designer and experiment.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:48 -04:00
Xiang Chen a25d0d3df2 scsi: hisi_sas: add reset handler for v3 hw
Use ACPI "_RST" method to reset the controller, since FLR is not
supported.

Function hisi_sas_stop_phys() is introduced to remove some code
duplication.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:28:47 -04:00
Christophe JAILLET 47c4ccd308 scsi: qedf: Fix a potential NULL pointer dereference
At the beginning of 'qedf_srr_compl()' and of 'qedf_rec_compl()', we
check if 'orig_io_req' is NULL. If this happens, a NULL pointer
dereference will occur in the error handling path.

Fix it by adding an additional label in the error handling path in order
to avoid this NULL pointer dereference.

[mkp: typo]

Fixes: 61d8658b4a ("scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework.")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-23 22:42:41 -04:00
Linus Torvalds 55652400fd SCSI fixes on 20170823
Six minor and error leg fixes, plus one major change: the reversion of
 scsi-mq as the default.  We're doing the latter temporarily (with a
 backport to stable) to give us time to fix all the issues that turned
 up with this default before trying again.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.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:
 "Six minor and error leg fixes, plus one major change: the reversion of
  scsi-mq as the default.

  We're doing the latter temporarily (with a backport to stable) to give
  us time to fix all the issues that turned up with this default before
  trying again"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: cxgb4i: call neigh_event_send() to update MAC address
  Revert "scsi: default to scsi-mq"
  scsi: sd_zbc: Write unlock zone from sd_uninit_cmnd()
  scsi: aacraid: Fix out of bounds in aac_get_name_resp
  scsi: csiostor: fail probe if fw does not support FCoE
  scsi: megaraid_sas: fix error handle in megasas_probe_one
2017-08-23 11:34:40 -07:00
Dan Carpenter bd46fc406b scsi: sg: off by one in sg_ioctl()
If "val" is SG_MAX_QUEUE then we are one element beyond the end of the
"rinfo" array so the > should be >=.

Fixes: 109bade9c6 ("scsi: sg: use standard lists for sg_requests")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-22 22:23:42 -04:00
Brian King 723cd772fd scsi: ipr: Set no_report_opcodes for RAID arrays
Since ipr RAID arrays do not support the MAINTENANCE_IN /
MI_REPORT_SUPPORTED_OPERATION_CODES, set no_report_opcodes to prevent it
from being sent.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-22 22:23:36 -04:00
Helge Deller 6ade2a0be9 parisc/scsi/lasi700: Fix section mismatches
Signed-off-by: Helge Deller <deller@gmx.de>
2017-08-22 16:34:36 +02:00
Helge Deller 5898aa13ab parisc/scsi/zalon: Fix section mismatches
Signed-off-by: Helge Deller <deller@gmx.de>
2017-08-22 16:34:36 +02:00
Linus Torvalds ac9a40905a SCSI fixes on 20170816
A couple of minor fixes (st, ses) and some bigger driver fixes for
 qla2xxx (crash triggered by fw dump) and ipr (lockdep problems with
 mq).
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.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:
 "A couple of minor fixes (st, ses) and some bigger driver fixes for
  qla2xxx (crash triggered by fw dump) and ipr (lockdep problems with
  mq)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ses: Fix wrong page error
  scsi: ipr: Fix scsi-mq lockdep issue
  scsi: st: fix blk_get_queue usage
  scsi: qla2xxx: Fix system crash while triggering FW dump
2017-08-16 17:21:20 -07:00
Varun Prakash 71eb2ac58a scsi: cxgb4i: call neigh_event_send() to update MAC address
If nud_state is not valid then call neigh_event_send() to update MAC
address.

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-16 20:12:31 -04:00
Christoph Hellwig cbe7dfa26e Revert "scsi: default to scsi-mq"
Defaulting to scsi-mq in 4.13-rc has shown various regressions
on setups that we didn't previously consider.  Fixes for them are
in progress, but too invasive to make it in this cycle.  So for
now revert the commit that defaults to blk-mq for SCSI.  For 4.14
we'll plan to try again with these fixes.

This reverts commit 5c279bd9e4.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-16 20:01:32 -04:00
Damien Le Moal 70e42fd02c scsi: sd_zbc: Write unlock zone from sd_uninit_cmnd()
Releasing a zone write lock only when the write commnand that acquired
the lock completes can cause deadlocks due to potential command
reordering if the lock owning request is requeued and not executed. This
problem exists only with the scsi-mq path as, unlike the legacy path,
requests are moved out of the dispatch queue before being prepared and
so before locking a zone for a write command.

Since sd_uninit_cmnd() is now always called when a request is requeued,
call sd_zbc_write_unlock_zone() from that function for write requests
that acquired a zone lock instead of from sd_done(). Acquisition of a zone
lock by a write command is indicated using the new command
flag SCMD_ZONE_WRITE_LOCK.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <Bart.VanAssche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-16 20:01:31 -04:00
Raghava Aditya Renukunta c802673249 scsi: aacraid: Fix out of bounds in aac_get_name_resp
We terminate the aac_get_name_resp on a byte that is outside the bounds
of the structure. Extend the return response by one byte to remove the
out of bounds reference.

Fixes: b836439faf ("aacraid: 4KB sector support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-16 20:01:31 -04:00
Varun Prakash 82f0fd06d4 scsi: csiostor: fail probe if fw does not support FCoE
Fail probe if FCoE capability is not enabled in the firmware.

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-16 20:01:30 -04:00
weiping zhang 61f0c3c7a0 scsi: megaraid_sas: fix error handle in megasas_probe_one
megasas_mgmt_info.max_index has increased by 1 before megasas_io_attach,
if megasas_io_attach return error, then goto fail_io_attach,
megasas_mgmt_info.instance has a wrong index here. So first reduce
max_index and then set that instance to NULL.

Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-16 20:01:30 -04:00
Linus Torvalds a99bcdce83 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 "The highlights include:

   - Fix iscsi-target payload memory leak during
     ISCSI_FLAG_TEXT_CONTINUE (Varun Prakash)

   - Fix tcm_qla2xxx incorrect use of tcm_qla2xxx_free_cmd during ABORT
     (Pascal de Bruijn + Himanshu Madhani + nab)

   - Fix iscsi-target long-standing issue with parallel delete of a
     single network portal across multiple target instances (Gary Guo +
     nab)

   - Fix target dynamic se_node GPF during uncached shutdown regression
     (Justin Maggard + nab)"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target: Fix node_acl demo-mode + uncached dynamic shutdown regression
  iscsi-target: Fix iscsi_np reset hung task during parallel delete
  qla2xxx: Fix incorrect tcm_qla2xxx_free_cmd use during TMR ABORT (v2)
  cxgbit: fix sg_nents calculation
  iscsi-target: fix invalid flags in text response
  iscsi-target: fix memory leak in iscsit_setup_text_cmd()
  cxgbit: add missing __kfree_skb()
  tcmu: free old string on reconfig
  tcmu: Fix possible to/from address overflow when doing the memcpy
2017-08-12 12:08:59 -07:00
Jens Axboe 4a8b53be64 Merge branch 'nvme-4.13' of git://git.infradead.org/nvme into for-linus
Pull NVMe fixes from Christoph:

"A few more small fixes - the fc/lpfc update is the biggest by far."
2017-08-11 08:07:19 -06:00
Xiang Chen d499669fac scsi: hisi_sas: kill tasklet when destroying irq in v3 hw
This patch adds calls to kill CQ takslets v3 hw during probe failure.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:02 -04:00
Xiang Chen 4f73575a79 scsi: hisi_sas: fix v3 hw channel interrupt processing
The channel interrupt is to process all the interrupts except PHY
UP/DOWN and broadcast interrupt. So we need to clear all the interrupts
except those 3 interrupts after processing channel interrupts.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:02 -04:00
Xiang Chen 8103673108 scsi: hisi_sas: Modify v3 hw STP_LINK_TIMER setting
Modify STP link timer from 10ms to 500ms. Also add the register address.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:02 -04:00
Xiang Chen 031da09c11 scsi: hisi_sas: add status and command buffer for internal abort
For v3 hw, internal abort function required status and command buffer to
be set, so add necessary code for this.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:02 -04:00
Xiaofei Tan c3fe8a2bbb scsi: hisi_sas: support zone management commands
Add two ATA commands, ATA_CMD_ZAC_MGMT_IN and ATA_CMD_ZAC_MGMT_OUT in
hisi_sas_get_ata_protocol(), to support SATA SMR disk.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:02 -04:00
Xiang Chen 640acc9a96 scsi: hisi_sas: service interrupt ITCT_CLR interrupt in v2 hw
This patch is a fix related to freeing a device in v2 hw driver.

Before, we polled to ITCT CLR interrupt to check if a device is free.

This was error prone, as if the interrupt doesn't occur in 10us, we miss
processing it.

To avoid this situation, service this interrupt and sync the event with
a completion.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:02 -04:00
Xiang Chen 8a253888bf scsi: hisi_sas: add irq and tasklet cleanup in v2 hw
This patch adds support to clean-up allocated IRQs and kill tasklets
when probe fails and for driver removal.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:02 -04:00
Xiang Chen cef4e1ab7a scsi: hisi_sas: remove repeated device config in v2 hw
This patch removes some repeated configurations:

(1) The device id of the device is already set in the alloc function, so
    we don't need to modify in free device function.

(2) Field dev_type and dev_status are configured in hisi_sas_dev_gone(),
    so there is no need for repeated config in free_device_v3_hw.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:02 -04:00
John Garry 2b3833510d scsi: hisi_sas: use array for v2 hw ECC errors
The code to print ECC errors in v2 hw driver is very repetitive.  This
patch condensed the code by looping an array of errors.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:02 -04:00
Xiaofei Tan c52108c61b scsi: hisi_sas: add v2 hw DFX feature
Add DFX feature for v2 hw. We are adding support for
the following errors:
- loss_of_dword_sync_count
- invalid_dword_count
- phy_reset_problem_count
- running_disparity_error_count

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:02 -04:00
Xiang Chen 01b361fc90 scsi: hisi_sas: fix v2 hw underflow residual value
The value dw0 is the residual bytes when UNDERFLOW error happens, but we
filled the residual with the value of dw3 before. So change the residual
from dw3 to dw0.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:01 -04:00
Xiang Chen c16db73665 scsi: hisi_sas: avoid potential v2 hw interrupt issue
When some interrupts happen together, we need to process every interrupt
one-by-one, and should not return immediately when one interrupt process
is finished being processed.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:01 -04:00
Xiaofei Tan 917d3bdaf8 scsi: hisi_sas: fix reset and port ID refresh issues
This patch provides fixes for the following issues:

1. Fix issue of controller reset required to send commands. For reset
   process, it may be required to send commands to the controller, but
   not during soft reset.  So add HISI_SAS_NOT_ACCEPT_CMD_BIT to prevent
   executing a task during this period.

2. Send a broadcast event in rescan topology to detect any topology
   changes during reset.

3. Previously it was not ensured that libsas has processed the PHY up
   and down events after reset. Potentially this could cause an issue
   that we still process the PHY event after reset. So resolve this by
   flushing shot workqueue in LLDD reset.

4. Port ID requires refresh after reset. The port ID generated after
   reset is not guaranteed to be the same as before reset, so it needs
   to be refreshed for each device's ITCT.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 20:15:01 -04:00
Kevin Barnett b98117caa0 scsi: smartpqi: change driver version to 1.1.2-125
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 19:58:26 -04:00
Kevin Barnett 557900640b scsi: smartpqi: add in new controller ids
Update the driver’s PCI IDs to match the latest Microsemi controllers

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 19:58:26 -04:00
Kevin Barnett b6d478119e scsi: smartpqi: update kexec and power down support
Add PQI reset to driver shutdown callback to work around controller bug.

During an 1.) OS shutdown or 2.) kexec outside of a kdump, the Linux
kernel will clear BME on our controller.

If BME is cleared during a controller/host PCIe transfer, the controller
will lock up.

So we perform a PQI reset in the driver's shutdown callback function to
eliminate the possibility of a controller/host PCIe transfer being
active when the kernel clears BME immediately after calling the driver's
shutdown callback.

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 19:58:26 -04:00
Kevin Barnett 4f078e2408 scsi: smartpqi: cleanup doorbell register usage.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-10 19:58:26 -04:00