- 25 Aug, 2017 40 commits
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Hannes Reinecke authored
The bus reset handler is just calling target reset on all targets, which is exactly what SCSI EH will be doing anyway. So move the bus reset function to target reset and drop the loop. 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>
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Hannes Reinecke authored
The bus reset handler is calling I_T Nexus reset, which logically is a target reset as it need to specify both the initiator and the target. So move it to target reset. Signed-off-by:
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Hannes Reinecke authored
The bus_reset handler is really a device reset, so move it to eh_device_reset_handler(). Signed-off-by:
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Hannes Reinecke authored
Command abort already returns FAILED, which will then be escalated to a host reset. So no need to call host_reset directly. Signed-off-by:
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Hannes Reinecke authored
When calling host reset we're resetting all ports anyway, so there is no point in waiting for the ports to become unblocked. Signed-off-by:
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Hannes Reinecke authored
When we're resetting the host any remote port states will be reset anyway, so it's pointless to wait for dev_loss_tmo during host reset. Signed-off-by:
Hannes Reinecke <hare@suse.de> Reviewed-by:
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Hannes Reinecke authored
When we're resetting the host any remote port states will be reset anyway, so it's pointless to wait for dev_loss_tmo during host reset. Signed-off-by:
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Hannes Reinecke authored
The function returns '0' if successful; with the original comment the function doesn't have a way to indicate success ... Signed-off-by:
Bart van Assche <bvanassche@wdc.com> Reviewed-by:
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Bart Van Assche authored
This patch avoids that gcc reports the following warning when building with W=1: drivers/scsi/iscsi_tcp.c:166:24: warning: variable ?session? set but not used [-Wunused-but-set-variable] Signed-off-by:
Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by:
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Bart Van Assche authored
This patch avoids that gcc reports the following warning when building with W=1: drivers/scsi/scsi_debug.c:2264:15: warning: variable ?pcontrol? set but not used [-Wunused-but-set-variable] Signed-off-by:
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Bart Van Assche authored
Avoid that the following compiler warning is reported when building with W=1: drivers/scsi/scsi_transport_srp.c:92:19: warning: comparison is always false due to limited range of data type [-Wtype-limits] Signed-off-by:
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Bart Van Assche authored
Check whether memory allocation succeeded before dereferencing the pointer to the allocated memory. Signed-off-by:
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Bart Van Assche authored
Signed-off-by:
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Bart Van Assche authored
This was detected by building with W=1. Signed-off-by:
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Bart Van Assche authored
This patch avoids that smatch reports the following: drivers/scsi/libiscsi.c:1081: iscsi_handle_reject() warn: inconsistent indenting Signed-off-by:
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Bart Van Assche authored
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:
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Bart Van Assche authored
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:
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Bart Van Assche authored
This patch avoids that smatch reports the following: drivers/scsi/sd.c:3540: sd_suspend_common() warn: inconsistent indenting Signed-off-by:
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Bart Van Assche authored
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:
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Bart Van Assche authored
Since commit e9c787e6 ("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:
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Bart Van Assche authored
Rename several functions to make it easy to see which queue type a function is intended for. Signed-off-by:
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Bart Van Assche authored
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:
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Bart Van Assche authored
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 bd664f6b ("disable new gcc-7.1.1 warnings for now") Signed-off-by:
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Bart Van Assche authored
This patch avoids that smatch reports the following: drivers/scsi/scsi_sysfs.c:506 scsi_bus_uevent() warn: argument 3 to %02x specifier has type 'char' drivers/scsi/scsi_sysfs.c:872 sdev_show_modalias() warn: argument 4 to %02x specifier has type 'char' Signed-off-by:
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Bart Van Assche authored
Commit e9c787e6 ("scsi: allocate scsi_cmnd structures as part of struct request") removed the scsi_get_command() function. Hence also remove the declaration of that function. Signed-off-by:
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Zang Leigang authored
Signed-off-by:
Zang Leigang <zangleigang@hisilicon.com> Signed-off-by:
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Dick Kennedy authored
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:
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Maurizio Lombardi authored
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:
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James Smart authored
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:
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James Smart authored
Change hw queue binding messages to info - not error. Signed-off-by:
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Dick Kennedy authored
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:
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Dick Kennedy authored
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:
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Dick Kennedy authored
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:
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Dick Kennedy authored
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:
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Dick Kennedy authored
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:
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Dick Kennedy authored
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:
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Dick Kennedy authored
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:
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Dick Kennedy authored
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:
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Dick Kennedy authored
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:
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Dick Kennedy authored
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:
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