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* scsi: lpfc: make several unions static, fix non-ANSI prototypeColin Ian King2018-03-142-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | There are several unions that are local to the source and do not need to be in global scope, so make them static. Also add in a missing void parameter to functions lpfc_nvme_cmd_template and lpfc_nvmet_cmd_template to clean up non-ANSI warning. Cleans up sparse warnings: drivers/scsi/lpfc/lpfc_nvme.c:68:19: warning: symbol 'lpfc_iread_cmd_template' was not declared. Should it be static? drivers/scsi/lpfc/lpfc_nvme.c:69:19: warning: symbol 'lpfc_iwrite_cmd_template' was not declared. Should it be static? drivers/scsi/lpfc/lpfc_nvme.c:70:19: warning: symbol 'lpfc_icmnd_cmd_template' was not declared. Should it be static? drivers/scsi/lpfc/lpfc_nvme.c:74:24: warning: non-ANSI function 'lpfc_tsend_cmd_template' was not declared. Should it be static? drivers/scsi/lpfc/lpfc_nvmet.c:78:19: warning: symbol 'lpfc_treceive_cmd_template' was not declared. Should it be static? drivers/scsi/lpfc/lpfc_nvmet.c:79:19: warning: symbol 'lpfc_trsp_cmd_template' was not declared. Should it be static? drivers/scsi/lpfc/lpfc_nvmet.c:83:25: warning: non-ANSI function declaration of function 'lpfc_nvmet_cmd_template' Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Change Copyright of 12.0.0.1 modified files to 2018James Smart2018-03-122-2/+2
| | | | | | | | Updated Copyright in files updated as part of 12.0.0.1 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>
* scsi: lpfc: update driver version to 12.0.0.1James Smart2018-03-121-1/+1
| | | | | | | | Update the driver version to 12.0.0.1 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>
* scsi: lpfc: Memory allocation error during driver start-up on power8James Smart2018-03-124-11/+21
| | | | | | | | | | | | | | | | | | The driver fails to allocate command buffers in the routine lpfc_new_scsi_buf_s4 There is an inconsistency between lpfc_mem_alloc(), where the phba->lpfc_sg_dma_buf_pool is created, and lpfc_new_scsi_buf_s4(), when we allocate a buffer from the pool and check the alignment. The alignment should be on a page boundary, based on LPFC_SLI3_BG_ENABLED in sli3_options, for both cases. Fix by explicitly tracking sli4 vs sli3 and BG options. The result is that phba->cfg_sg_dma_buf_size is now set correctly for SLI-4. 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>
* scsi: lpfc: Fix mailbox wait for POST_SGL mbox commandJames Smart2018-03-122-22/+13
| | | | | | | | | | | | | | | POST_SGL_PAGES mailbox command failed with status (timeout). wait_event_interruptible_timeout when called from mailbox wait interface, gets interrupted, and will randomly fail. Behavior seems very specific to 1 particular server type. Fix by changing from wait_event_interruptible_timeout to wait_for_completion_timeout. 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>
* scsi: lpfc: Fix SCSI lun discovery when port configured for both SCSI and NVMEJames Smart2018-03-123-1/+6
| | | | | | | | | | | | | | | | | | When a port is configured for NVME and SCSI Initiator support and it probes a target supporting both SCSI and NVME, NVME devices are discovered, but SCSI devices are not. The nlp_fc4_type for all NPorts should be cleared on Link Up or just before GID_FTs get issued, as opposed to just during GID_FT cmpl. RSCN activity as well as Link Up can trigger GID_FT. One GID_FT may complete before the next one is issued. Fix by clearng nlp_fc4_type on link up and just before both GID_FTs are issued. During port swapping, copy nlp_fc4_type to the new ndlp 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>
* scsi: lpfc: Streamline NVME Targe6t WQE setupJames Smart2018-03-123-104/+191
| | | | | | | | | | | | | | To reduce latency when initializing WQE content, created templates for the most common wqes. This reduces the number of operations taken to set the content. It's not a lot of speed up, but every bit helps. This patch updates the NVME target path. [mkp: fixed 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>
* scsi: lpfc: Streamline NVME Initiator WQE setupJames Smart2018-03-124-127/+203
| | | | | | | | | | | | | | To reduce latency when initializing WQE content, create templates for the most common wqes. This reduces the number of operations taken to set the content. It's not a lot of speed up, but every bit helps. This patch updates the NVME initiator path. [mkp: fixed 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>
* scsi: lpfc: Code cleanup for 128byte wqe data typeJames Smart2018-03-125-66/+61
| | | | | | | | | | | | | | | The driver is very sloppy about the WQE structure passed between routines. The base struct type is a 64byte wqe. But in many routines they typecast and access 128byte wqes. There were a couple of cases in the past (corrected already) where the typecasts were incorrectly done and the 64byte buffer was accessed as a 128 byte buffer. Clean this up by properly declaring wqe's as 128byte wqe's and removing the typecasts. 64byte wqes are considered a subset of the 128byte wqes. 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>
* scsi: lpfc: Fix NVME Initiator FirstBurstJames Smart2018-03-122-1/+16
| | | | | | | | | | First Burst support was not properly indicated in NVMe PRLI. Correct the bit position and the logic to check and set first burst support. 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>
* scsi: lpfc: Add missing unlock in WQ full logicJames Smart2018-03-121-0/+1
| | | | | | | | | | | | | Commit 6e8e1c14c61e ("scsi: lpfc: Add WQ Full Logic for NVME Target") fails the static checker. Checker correctly identified a missing unlock on a return path. Add the unlock. Fixes: 6e8e1c14c61e ("scsi: lpfc: Add WQ Full Logic for NVME Target") 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>
* scsi: lpfc: use __raw_writeX on DPP copiesJames Smart2018-03-061-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | Commit 1351e69fc6db ("scsi: lpfc: Add push-to-adapter support to sli4") fails compilation on some 32-bit systems as writeq() is not supported on all architectures. Additionally, it was pointed out that as writeX() does byteswapping if necessary for pci vs the cpu endianness, the code was broken on BE PPC. After discussions with Arnd Bergmann, we've resolved the issue to the following: Instead of writeX(), use __raw_writeX() - which writes to io space while preserving byte order. To use this, the code was changed to use a different buffer that lpfc prepped via sli_pcimem_bcopy() that was set to the bytestream to be written. On platforms with __raw_writeq support, use the routine, otherwise use __raw_writel() [mkp: checkpatch] Fixes: 1351e69fc6db ("scsi: lpfc: Add push-to-adapter support to sli4") Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Change Copyright of 12.0.0.0 modified files to 2018James Smart2018-02-226-6/+6
| | | | | | | | | Updated Copyright in files updated as part of 12.0.0.0 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>
* scsi: lpfc: update driver version to 12.0.0.0James Smart2018-02-221-1/+1
| | | | | | | | | Update the driver version to 12.0.0.0 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>
* scsi: lpfc: Work around NVME cmd iu SGL typeJames Smart2018-02-226-17/+69
| | | | | | | | | | | | | | | | | | | | | | | The hardware offload for NVME commands was created when the FC-NVME standard was setting SGL Descriptor Type to SGL Data Block Descriptor (0h) and SGL Descriptor Sub Type to Address (0h). A late change in NVMe-over-Fabrics obsoleted these values, creating a transport SGL descriptor type with new values to go into these fields. For initial hardware support, in order to be compliant to the spec, use host-supplied cmd IU buffers instead of the adapter generated values. Later hardware will correct this. Add a module parameter to override this offload disablement if looking for lowest latency. This is reasonable as nothing in FC-NVME uses the SQE SGL values. 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>
* scsi: lpfc: Fix nvme embedded io length on new hardwareJames Smart2018-02-221-1/+1
| | | | | | | | | | | | | Newer hardware more strictly enforces buffer lenghts, causing an mis-set value to be identified. Older hardware won't catch it. The difference is benign on old hardware. Set the right embedded buffer length for nvme ios. 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>
* scsi: lpfc: Add embedded data pointers for enhanced performanceJames Smart2018-02-227-6/+94
| | | | | | | | | | | | | | The current driver isn't taking advantage of a performance hint whereby the initial data buffer descriptor can be placed in the WQE as well as the SGL. Add the logic to detect support for the feature and to use it when supported. 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>
* scsi: lpfc: Enable fw download on if_type=6 devicesJames Smart2018-02-223-17/+33
| | | | | | | | | | | | | | Current code is very explicit in what it allows to be downloaded. The driver checking prevented G7 firmware download. The driver checking is unnecessary as the device will validate what it receives. Revise the firmware download interface checking. Added a little debug support in case there is still a failure. 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>
* scsi: lpfc: Add if_type=6 support for cycling valid bitsJames Smart2018-02-224-17/+92
| | | | | | | | | | | | | | | | Traditional SLI4 required the driver to clear Valid bits on EQEs and CQEs after consuming them. The new if_type=6 hardware will cycle the value for what is valid on each queue itteration. The driver no longer has to touch the valid bits. This also means all the cpu cache dirtying and perhaps flush/refill's done by the hardware in accessing the EQ/CQ elements is eliminated. 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>
* scsi: lpfc: Add 64G link speed supportJames Smart2018-02-229-30/+93
| | | | | | | | | | | | The G7 adapter supports 64G link speeds. Add support to the driver. In addition, a small cleanup to replace the odd bitmap logic with a switch case. 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>
* scsi: lpfc: Add PCI Ids for if_type=6 hardwareJames Smart2018-02-223-0/+6
| | | | | | | | | Add PCI ids for the new G7 adapter 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>
* scsi: lpfc: Add push-to-adapter support to sli4James Smart2018-02-226-87/+220
| | | | | | | | | | | | | | | | | | | | | | | New if_type=6 adapters support an additional BAR that provides apertures to allow direct WQE to adapter push support - termed Direct Packet Push (DPP). WQ creation differs slightly to ask for a WQ to be DPP-ized. When submitting a WQE to a DPP WQ, it is submitted to the host memory for the WQ normally, but is also written by the host cpu directly to a BAR aperture. Write buffer coalescing in hardware is (hopefully) turned on, enabling single pci write operation support. The doorbell is thing rung to indicate the WQE is available and was pushed to the aperture. This patch: - Updates the WQ Create commands for the DPP options - Adds the bar mapping for if_type=6 DPP bar - Adds the WQE pushing to the DDP aperture received from WQ create - Adds a new module parameter to disable DPP operation if desired. Default is enabled. 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>
* scsi: lpfc: Add SLI-4 if_type=6 support to the code baseJames Smart2018-02-225-26/+275
| | | | | | | | | | | | | | | | New hardware supports a SLI-4 interface, but with a new if_type variant of 6. If_type=6 has a different PCI BAR map, separate EQ/CQ doorbells, and some changes in doorbell formats. Add the changes for the if_type into headers, adapter initialization and control flows. Add new eq and cq handlers. 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>
* scsi: lpfc: Rework sli4 doorbell infrastructureJames Smart2018-02-225-19/+32
| | | | | | | | | | | | | | Up until now, all SLI-4 devices had the same doorbells at the same bar locations. With newer hardware, there are now independent EQ and CQ doorbells and the bar locations differ. Prepare the code for new hardware by separating the eq/cq doorbell into separate components. The components can be set based on if_type. 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>
* scsi: lpfc: Rework lpfc to allow different sli4 cq and eq handlersJames Smart2018-02-223-31/+44
| | | | | | | | | | | | | | Up until now, an SLI-4 device had no variance in the way it handled its EQs and CQs. With newer hardware, there are now differences in doorbells and some differences in how entries are valid. Prepare the code for new hardware by creating a sli4-based callout table that can be set based on if_type. 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>
* scsi: lpfc: Update 11.4.0.7 modified files for 2018 CopyrightJames Smart2018-02-1217-21/+20
| | | | | | | | Updated Copyright in files updated 11.4.0.7 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>
* scsi: lpfc: update driver version to 11.4.0.7James Smart2018-02-121-1/+1
| | | | | | | | | Update the driver version to 11.4.0.7 Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Fix nonrecovery of NVME controller after cable swap.James Smart2018-02-121-11/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In a test that is doing large numbers of cable swaps on the target, the nvme controllers wouldn't reconnect. During the cable swaps, the targets n_port_id would change. This information was passed to the nvme-fc transport, in the new remoteport registration. However, the nvme-fc transport didn't update the n_port_id value in the remoteport struct when it reused an existing structure. Later, when a new association was attempted on the remoteport, the driver's NVME LS routine would use the stale n_port_id from the remoteport struct to address the LS. As the device is no longer at that address, the LS would go into never never land. Separately, the nvme-fc transport will be corrected to update the n_port_id value on a re-registration. However, for now, there's no reason to use the transports values. The private pointer points to the drivers node structure and the node structure is up to date. Therefore, revise the LS routine to use the drivers data structures for the LS. Augmented the debug message for better debugging in the future. Also removed a duplicate if check that seems to have slipped in. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Treat SCSI Write operation Underruns as an errorJames Smart2018-02-121-5/+3
| | | | | | | | | | | | | | | | Currently, write underruns (mismatch of amount transferred vs scsi status and its residual) detected by the adapter are not being flagged as an error. Its expected the target controls the data transfer and would appropriately set the RSP values. Only read underruns are treated as errors. Revise the SCSI error handling to treat write underruns as an error as well. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Fix header inclusion in lpfc_nvmetJames Smart2018-02-121-1/+1
| | | | | | | | | | The driver was inappropriately pulling in the nvme host's nvme.h header. What it really needed was the standard <linux/nvme.h> header. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Validate adapter support for SRIU optionJames Smart2018-02-123-4/+19
| | | | | | | | | | | When using the special option to suppress the response iu, ensure the adapter fully supports the feature by checking feature flags from the adapter and validating the support when formatting the WQE. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Fix SCSI io host reset causing kernel crashJames Smart2018-02-122-1/+16
| | | | | | | | | | | | | | During SCSI error handling escalation to host reset, the SCSI io routines were moved off the txcmplq, but the individual io's ON_CMPLQ flag wasn't cleared. Thus, a background thread saw the io and attempted to access it as if on the txcmplq. Clear the flag upon removal. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Indicate CONF support in NVMe PRLIJames Smart2018-02-123-7/+5
| | | | | | | | | Revise the NVME PRLI to indicate CONF support. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Fix issue_lip if link is disabledJames Smart2018-02-121-0/+5
| | | | | | | | | | The driver ignored checks on whether the link should be kept administratively down after a link bounce. Correct the checks. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Fix soft lockup in lpfc worker thread during LIP testingJames Smart2018-02-121-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | During link bounce testing in a point-to-point topology, the host may enter a soft lockup on the lpfc_worker thread: Call Trace: lpfc_work_done+0x1f3/0x1390 [lpfc] lpfc_do_work+0x16f/0x180 [lpfc] kthread+0xc7/0xe0 ret_from_fork+0x3f/0x70 The driver was simultaneously setting a combination of flags that caused lpfc_do_work()to effectively spin between slow path work and new event data, causing the lockup. Ensure in the typical wq completions, that new event data flags are set if the slow path flag is running. The slow path will eventually reschedule the wq handling. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Allow set of maximum outstanding SCSI cmd limit for a targetJames Smart2018-02-122-13/+30
| | | | | | | | | | | | | Make the attribute writeable. Remove the ramp up to logic as its unnecessary, simply set depth. Add debug message if depth changed, possibly reducing limit, yet our outstanding count has yet to catch up with it. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Fix RQ empty firmware trapJames Smart2018-02-125-15/+51
| | | | | | | | | | | | | | | | | | When nvme target deferred receive logic waits for exchange resources, the corresponding receive buffer is not replenished with the hardware. This can result in a lack of asynchronous receive buffer resources in the hardware, resulting in a "2885 Port Status Event: ... error 1=0x52004a01 ..." message. Correct by replenishing the buffer whenenver the deferred logic kicks in. Update corresponding debug messages and statistics as well. [mkp: applied by hand] Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Fix IO failure during hba reset testing with nvme io.James Smart2018-02-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | A stress test repeatedly resetting the adapter while performing io would eventually report I/O failures and missing nvme namespaces. The driver was setting the nvmefc_fcp_req->private pointer to NULL during the IO completion routine before upcalling done(). If the transport was also running an abort for that IO, the driver would fail the abort with message 6140. Failing the abort is not allowed by the nvme-fc transport, as it mandates that the io must be returned back to the transport. As that does not happen, the transport controller delete has an outstanding reference and can't complete teardown. The NULL-ing of the private pointer should be done only when the io is considered complete. It's complete when the adapter returns the exchange with the "exchange busy" flag clear. Move the NULL'ing of the structure to the done case. This leaves the io contexts set while it is busy and until the subsequent XRI_ABORTED completion which returns the exchange is received. 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>
* scsi: lpfc: Fix PRLI handling when topology type changesJames Smart2018-02-121-3/+1
| | | | | | | | | | | | | | | | | | The lpfc driver does not discover a target when the topology changes from switched-fabric to direct-connect. The target rejects the PRLI from the initiator in direct-connect as the driver is using the old S_ID from the switched topology. The driver was inappropriately clearing the VP bit to register the VPI, which is what is associated with the S_ID. Fix by leaving the VP bit set (it was set earlier) and as the VFI is being re-registered, set the UPDT bit. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Add WQ Full Logic for NVME TargetJames Smart2018-02-125-1/+125
| | | | | | | | | | | | | | | | I/O conditions on the nvme target may have the driver submitting to a full hardware wq. The hardware wq is a shared resource among all nvme controllers. When the driver hit a full wq, it failed the io posting back to the nvme-fc transport, which then escalated it into errors. Correct by maintaining a sideband queue within the driver that is added to when the WQ full condition is hit, and drained from as soon as new WQ space opens up. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: correct debug counters for abortJames Smart2018-02-121-2/+2
| | | | | | | | | | Existing code was using the wrong field for the completion status when comparing whether to increment abort statistics Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: move placement of target destroy on driver detachJames Smart2018-02-121-7/+7
| | | | | | | | | | | Ensure nvme localports/targetports are torn down before dismantling the adapter sli interface on driver detachment. This aids leaving interfaces live while nvme may be making callbacks to abort it. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* scsi: lpfc: Increase CQ and WQ sizes for SCSIJames Smart2018-02-125-12/+36
| | | | | | | | | Increased CQ and WQ sizes for SCSI FCP, matching those used for NVMe development. 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>
* scsi: lpfc: Fix frequency of Release WQE CQEsJames Smart2018-02-121-0/+2
| | | | | | | | | | | | | | | | | | The driver controls when the hardware sends completions that communicate consumption of elements from the WQ. This is done by setting a WQEC bit on a WQE. The current driver sets it on every Nth WQE posting. However, the driver isn't clearing the bit if the WQE is reused. Thus, if the queue depth isn't evenly divisible by N, with enough time, it can be set on every element, creating a lot of overhead and risking CQ full conditions. Correct by clearing the bit when not setting it on an Nth element. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
* Merge tag 'driver-core-4.16-rc1' of ↵Linus Torvalds2018-02-011-41/+23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the set of "big" driver core patches for 4.16-rc1. The majority of the work here is in the firmware subsystem, with reworks to try to attempt to make the code easier to handle in the long run, but no functional change. There's also some tree-wide sysfs attribute fixups with lots of acks from the various subsystem maintainers, as well as a handful of other normal fixes and changes. And finally, some license cleanups for the driver core and sysfs code. All have been in linux-next for a while with no reported issues" * tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (48 commits) device property: Define type of PROPERTY_ENRTY_*() macros device property: Reuse property_entry_free_data() device property: Move property_entry_free_data() upper firmware: Fix up docs referring to FIRMWARE_IN_KERNEL firmware: Drop FIRMWARE_IN_KERNEL Kconfig option USB: serial: keyspan: Drop firmware Kconfig options sysfs: remove DEBUG defines sysfs: use SPDX identifiers drivers: base: add coredump driver ops sysfs: add attribute specification for /sysfs/devices/.../coredump test_firmware: fix missing unlock on error in config_num_requests_store() test_firmware: make local symbol test_fw_config static sysfs: turn WARN() into pr_warn() firmware: Fix a typo in fallback-mechanisms.rst treewide: Use DEVICE_ATTR_WO treewide: Use DEVICE_ATTR_RO treewide: Use DEVICE_ATTR_RW sysfs.h: Use octal permissions component: add debugfs support bus: simple-pm-bus: convert bool SIMPLE_PM_BUS to tristate ...
| * treewide: Use DEVICE_ATTR_WOJoe Perches2018-01-091-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | Convert DEVICE_ATTR uses to DEVICE_ATTR_WO where possible. Done with perl script: $ git grep -w --name-only DEVICE_ATTR | \ xargs perl -i -e 'local $/; while (<>) { s/\bDEVICE_ATTR\s*\(\s*(\w+)\s*,\s*\(?(?:\s*S_IWUSR\s*|\s*0200\s*)\)?\s*,\s*NULL\s*,\s*\s_store\s*\)/DEVICE_ATTR_WO(\1)/g; print;}' Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * treewide: Use DEVICE_ATTR_ROJoe Perches2018-01-091-10/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert DEVICE_ATTR uses to DEVICE_ATTR_RO where possible. Done with perl script: $ git grep -w --name-only DEVICE_ATTR | \ xargs perl -i -e 'local $/; while (<>) { s/\bDEVICE_ATTR\s*\(\s*(\w+)\s*,\s*\(?(?:\s*S_IRUGO\s*|\s*0444\s*)\)?\s*,\s*\1_show\s*,\s*NULL\s*\)/DEVICE_ATTR_RO(\1)/g; print;}' Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Sagi Grimberg <sagi@grimberg.me> Acked-by: Zhang Rui <rui.zhang@intel.com> Acked-by: Harald Freudenberger <freude@linux.vnet.ibm.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * treewide: Use DEVICE_ATTR_RWJoe Perches2018-01-091-29/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert DEVICE_ATTR uses to DEVICE_ATTR_RW where possible. Done with perl script: $ git grep -w --name-only DEVICE_ATTR | \ xargs perl -i -e 'local $/; while (<>) { s/\bDEVICE_ATTR\s*\(\s*(\w+)\s*,\s*\(?(\s*S_IRUGO\s*\|\s*S_IWUSR|\s*S_IWUSR\s*\|\s*S_IRUGO\s*|\s*0644\s*)\)?\s*,\s*\1_show\s*,\s*\1_store\s*\)/DEVICE_ATTR_RW(\1)/g; print;}' Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds2018-01-3118-386/+964
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull SCSI updates from James Bottomley: "This is mostly updates of the usual driver suspects: arcmsr, scsi_debug, mpt3sas, lpfc, cxlflash, qla2xxx, aacraid, megaraid_sas, hisi_sas. We also have a rework of the libsas hotplug handling to make it more robust, a slew of 32 bit time conversions and fixes, and a host of the usual minor updates and style changes. The biggest potential for regressions is the libsas hotplug changes, but so far they seem stable under testing" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (313 commits) scsi: qla2xxx: Fix logo flag for qlt_free_session_done() scsi: arcmsr: avoid do_gettimeofday scsi: core: Add VENDOR_SPECIFIC sense code definitions scsi: qedi: Drop cqe response during connection recovery scsi: fas216: fix sense buffer initialization scsi: ibmvfc: Remove unneeded semicolons scsi: hisi_sas: fix a bug in hisi_sas_dev_gone() scsi: hisi_sas: directly attached disk LED feature for v2 hw scsi: hisi_sas: devicetree: bindings: add LED feature for v2 hw scsi: megaraid_sas: NVMe passthrough command support scsi: megaraid: use ktime_get_real for firmware time scsi: fnic: use 64-bit timestamps scsi: qedf: Fix error return code in __qedf_probe() scsi: devinfo: fix format of the device list scsi: qla2xxx: Update driver version to 10.00.00.05-k scsi: qla2xxx: Add XCB counters to debugfs scsi: qla2xxx: Fix queue ID for async abort with Multiqueue scsi: qla2xxx: Fix warning for code intentation in __qla24xx_handle_gpdb_event() scsi: qla2xxx: Fix warning during port_name debug print scsi: qla2xxx: Fix warning in qla2x00_async_iocb_timeout() ...
| * scsi: lpfc: fix a couple of minor indentation issuesColin Ian King2018-01-031-4/+4
| | | | | | | | | | | | | | Several statements are indented too far, fix these Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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