It might happen that we try to free an already freed pointer.
Reported-by: NMaurizio Lombardi <mlombard@redhat.com>
Signed-off-by: NTomas Henzl <thenzl@redhat.com>
Acked-by: NChaitra P B <chaitra.basappa@avagotech.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Adding a new method to display enclosure device information.
Reviewed-by: NJustin Lindley <justin.lindley@pmcs.com>
Reviewed-by: NKevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: NScott Teel <scott.teel@pmcs.com>
Reviewed-by: NHannes Reinecke <hare@suse.com>
Signed-off-by: NDon Brace <don.brace@pmcs.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

SAS transport places devices on bus 0 but driver was setting the bus to
3.
Reviewed-by: NJustin Lindley <justin.lindley@pmcs.com>
Reviewed-by: NKevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: NScott Teel <scott.teel@pmcs.com>
Reviewed-by: NMatthew R. Ochs <mrochs@linux.vnet.ibm.com>
Reviewed-by: NHannes Reinecke <hare@suse.com>
Signed-off-by: NDon Brace <don.brace@pmcs.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Left off some changes from Rasmus Villemoes where he changed snprintf to
scnprintf.
Suggested-by: NRasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: NJustin Lindley <justin.lindley@pmcs.com>
Reviewed-by: NKevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: NScott Teel <scott.teel@pmcs.com>
Reviewed-by: NRasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: NHannes Reinecke <hare@suse.com>
Signed-off-by: NDon Brace <don.brace@pmcs.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

The max outstanding commands is being printed with a 0x prefix to
suggest it is a hex value, when in fact the integer decimal %d format
specifier is being used and this is a bit confusing. Use %x instead to
match the proceeding 0x prefix.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

The OPTIMAL TRANSFER LENGTH reported by scsi_debug is 64 blocks which
translates to 32KB with the default logical block size. That's much
lower than what real storage devices typically report (256KB to 1MB).

Bump the optimal transfer length to 1024 blocks.
Acked-by: NDouglas Gilbert <dgilbert@interlog.com>
Reviewed-by: NEwan Milne <emilne@redhat.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Update version to 11.0.0.10 for upstream patch set
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

This patch is to the lpfc_els.c which resolves following warning
reported by coccicheck:

WARNING: kzalloc should be used for rdp_context, instead of
kmalloc/memset
Signed-off-by: NPunit Vara <punitvara@gmail.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Reviewed-by: NMatthew R. Ochs <mrochs@linux.vnet.ibm.com>
Reviewed-by: NSebastian Herbszt <herbszt@gmx.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

The mempool_destroy() function tests whether its argument is NULL
and then returns immediately. Thus the test around the calls is not needed.

This issue was detected by using the Coccinelle software.
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Reviewed-by: NSebastian Herbszt <herbszt@gmx.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Add logging for misconfigured optics acqe reported by fw.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix external loopback failure.

Rx sequence reassembly was incorrect.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix mbox reuse in PLOGI completion. Moved allocations so that buffer
properly init'd.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Use new FDMI speed definitions for 10G, 25G and 40G FCoE.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Make write check error processing more resilient.

Checks to catch writes that fw reports weren't fully complete yet SCSI
status indicated fine needed correction.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix RDP ACC being too long.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix RDP Speed reporting.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Modularize, cleanup, add comments - for FDMI code in driver

Note: I don't like the comments with leading # - but as we have a lot if
present, I'm deferring to handle it in one big fix later.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix crash in fcp command completion path.

Missed null check.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix driver crash when module parameter lpfc_fcp_io_channel set to 16
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix RegLogin failed error seen on Lancer FC during port bounce

Fix the statemachine and ref counting.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix the FLOGI discovery logic to comply with T11 standards

We weren't properly setting fabric parameters, such as R_A_TOV and E_D_TOV,
when we registered the vfi object in default configs and pt2pt configs.
Revise to now pass service params with the values to the firmware and
ensure they are reset on link bounce. Required reworking the call sequence
in the discovery threads.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix FCF Infinite loop in lpfc_sli4_fcf_rr_next_index_get.
Signed-off-by: NDick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: NJames Smart <james.smart@avagotech.com>
Reviewed-by: NHannes Reinicke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

It is preferred that drivers use platform_get_irq() instead of
irq_of_parse_and_map(), so replace.
Signed-off-by: NJohn Garry <john.garry@huawei.com>
Acked-by: NRob Herring <robh@kernel.org>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

There were a couple cases where the error codes weren't set and also I
changed the success return to "return 0;" which is the same as
"return rc;" but more explicit.

Fixes: 42e7a693 ('hisi_sas: Add ssp command functio')
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Tested-by: NJohn Garry <john.garry@huawei.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

If char is signed and one of these bytes happen to have a value outside
the ascii range, the corresponding output will consist of "ffffff"
followed by the two hex chars that were actually intended. One way to
fix it would be to change the casts to (u8*) aka
(unsigned char*), but it is much simpler (and generates smaller code)
to use the %ph extension which was created for such short hexdumps.
Signed-off-by: NRasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: NBoaz Harrosh <ooo@electrozaur.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Introduce a logging level for storvsc to log certain error/warning
messages. Those messages are helpful in some environments,
e.g. Microsoft Azure, for customer support and troubleshooting purposes.
Signed-off-by: NLong Li <longli@microsoft.com>
Acked-by: NK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

The driver is missing calls to pci_dma_mapping_error() after
performing the DMA mapping, which caused DMA-API warning to
show up in dmesg's output. Though that happens only when
DMA_API_DEBUG option is enabled. This change fixes the issue
and makes pvscsi_map_buffers() function more robust.
Signed-off-by: NArvind Kumar <arvindkumar@vmware.com>
Cc: Josh Boyer <jwboyer@fedoraproject.org>
Reviewed-by: NThomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: NJosh Boyer <jwboyer@fedoraproject.org>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

IS_ERR_OR_NULL already contain an unlikely compiler flag. Drop it.
Signed-off-by: NGeliang Tang <geliangtang@163.com>
Acked-by: NManoj Kumar <manoj@linux.vnet.ibm.com>
Acked-by: NMatthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

The "> MAX_CONTEXT" should be ">= MAX_CONTEXT".  Otherwise we go one
step beyond the end of the cfg->ctx_tbl[] array.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: NManoj Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Acked-by: NMatthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

With commit 83ea0e5e ("scsi_dh_alua: use scsi_vpd_tpg_id()") these
variables became obsolete, but weren't removed.

[mkp: Fixed checkpatch warning]
Signed-off-by: NHannes Reinecke <hare@suse.de>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Signed-off-by: NSudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: NAnil Gurumurthy <anil.gurumurthy@qlogic.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Signed-off-by: NSudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: NAnil Gurumurthy <anil.gurumurthy@qlogic.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix a very corner case when the port gets disconnected and the BFA and
FCS layers clean up references to the IT nexus.  During this window if a
task management command is issued by the SCSI-ML and ends up referencing
a NULL itnim, it could lead to a crash.
Signed-off-by: NSudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: NAnil Gurumurthy <anil.gurumurthy@qlogic.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Signed-off-by: NSudarsana Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: NAnil Gurumurthy <anil.gurumurthy@qlogic.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Use the common function 'scsi_vpd_tpg_id()' instead of open-coding
it in scsi_dh_alua.

[mkp: Applied by hand]
Signed-off-by: NHannes Reinecke <hare@suse.de>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Implement scsi_vpd_tpg_id() to extract the target
port group id and the relative port id from
SCSI VPD page 0x83.
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Use scsi_vpd_lun_id() to export the world-wide unique id (wwid) to
sysfs.  Note that this is the 'best' wwid according to the rules in
scsi_vpd_lun_id(), not every possible wwid presented by the drive.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Add a function scsi_vpd_lun_id() to return a unique device
identifcation based on the designation descriptors of
VPD page 0x83.

As devices might implement several descriptors the order
of preference is:
- NAA IEE Registered Extended
- EUI-64 based 16-byte
- EUI-64 based 12-byte
- NAA IEEE Registered
- NAA IEEE Extended
A SCSI name string descriptor is preferred to all of them
if the identification is longer than 16 bytes.

The returned unique device identification will be formatted
as a SCSI Name string to avoid clashes between different
designator types.

[mkp: Fixed up kernel doc comment from Johannes]
Signed-off-by: NHannes Reinecke <hare@suse.de>
Reviewed-by: NEwan Milne <emilne@redhat.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Most sense code is already handled in the generic
code, so we shouldn't be adding special cases here.
However, when doing so we need to check for
unit attention whenever we're sending an internal
command.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Reviewed-by: NEwan Milne <emilne@redhat.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Instead of returning an error code in alua_check_tpgs() we should
rather return the tpgs mode directly and have a cleaner syntax.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>