- 01 Jul, 2017 1 commit
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Johannes Thumshirn authored
In qla2xx_start_scsi_mq() and qla2xx_dif_start_scsi_mq() we grab the qpair->qp_lock but do access members of the qpair before having the lock. Re-order the locking sequence to have all read and write access to qpair members under the qpair->qp_lock. Signed-off-by:
Johannes Thumshirn <jthumshirn@suse.de> Acked-by:
Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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- 28 Jun, 2017 35 commits
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Johan Hovold authored
Make sure to drop the reference to the dma device taken by of_find_device_by_node() on probe errors and on driver unbind. Fixes: 334ae614 ("sparc: Kill SBUS DVMA layer.") Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
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Satish Kharat authored
Currently the queue command returns DID_NO_CONNECT anytime the rport is not in RPORT_ST_READY state. Changing it to return DID_NO_CONNECT only when the rport is in RPORT_ST_DELETE state. When the rport is in one of the init states retruning DID_IMM_RETRY. Signed-off-by:
Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by:
Satish Kharat <satishkh@cisco.com> Signed-off-by:
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Satish Kharat authored
Setting speed based on the vinc device parameter read during linkup. Also adding support to display 25,40 and 100G Signed-off-by:
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Satish Kharat authored
Added the timestamps for 1. current timestamp 2. last fnic stats read timestamp 3. last fnic stats reset timestamp and the deltas since last stats read and last reset in fnic stats. fnic stats uses debugfs Signed-off-by:
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Satish Kharat authored
io_cmpl_skip keep track of number of completions to skip when stats are reset. If a fw_reset happens immediately after stats reset it could put it out of sync so need to reset io_cmpl_skip when fw reset is completed. Signed-off-by:
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Chad Dupuis authored
Signed-off-by:
Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by:
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Chad Dupuis authored
Do not call the stock libfc terminate rport i/o handler so we won't reset the libfc exchange manager and kill any outstanding discovery requests. Signed-off-by:
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Chad Dupuis authored
In eh_abort, driver is calling scsi->done() for a IO for which cleanup is pending. As the IO is outstanding with the firmware, it may do DMA associated with the IO. This may lead to heap corruption. Do not complete the IO for which cleanup is still pending. Return failure from eh_abort and let the SCSI-ml retry the IO. Signed-off-by:
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Chad Dupuis authored
Some vports addresses stored in NVRAM may have zero for the WWNN. Adjust the WWNN that we'll use to be the same as the WWPN. Signed-off-by:
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Chad Dupuis authored
Signed-off-by:
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Chad Dupuis authored
If the connection is not offloaded then the backpointers from the tgt pointer are undefined. Signed-off-by:
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Chad Dupuis authored
Add the following filters to bnx2fc_recv_frame(): 1. Filter out invalid packets - eth->dest_mac[3] matches FC frame's D_ID 2. Filter out packets that are not from our connected target - In FIP_ST_ENABLED mode - eth->src_mac matches fcoe_ctlr->dest_addr 3. Filter out packets where if d_id of the packet doesn't belong to the device when one is already assigned a port_id, only then this packet is dropped Signed-off-by: -
Christoph Hellwig authored
Remove the SCSI_MQ_DEFAULT config option and default to the blk-mq I/O path now that we had plenty of testing, and have I/O schedulers for blk-mq. The module option to disable the blk-mq path is kept around for now. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Johannes Thumshirn authored
libsas uses scsi_queue_work() to queue its internal event notifications. scsi_queue_work() can return -EINVAL if the work queue doesn't exist and it does call queue_work() which can return false if the work is already queued. Make the SAS event code capable of returning errors up to the caller, which is handy when changing to dynamically allocated work in libsas as well, as discussed here: https://lkml.org/lkml/2017/6/14/121. [mkp: fixed typo] Signed-off-by:
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Himanshu Madhani authored
Signed-off-by:
James Smart <james.smart@broadcom.com> Reviewed-by:
Hannes Reinecke <hare@suse.com> Signed-off-by:
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Duane Grigsby authored
[mkp: fixed typo] Signed-off-by:
Duane Grigsby <duane.grigsby@cavium.com> Signed-off-by:
Darren Trapp <darren.trapp@cavium.com> Signed-off-by:
Anil Gurumurthy <anil.gurumurhty@cavium.com> Signed-off-by:
Giridhar Malavali <giridhar.malavali@cavium.com> Signed-off-by:
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Duane Grigsby authored
This patch adds switch command support for FC-4 type of FC-NVMe (0x28) for resgistering HBA port to the management server. RFT_ID command is used to register FC-4 type of 0x28 and RFF_ID is used to register FC-4 features bits for FC-NVMe port. Signed-off-by:
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Duane Grigsby authored
This code provides the interfaces to register remote and local ports of FC4 type 0x28 with the FC-NVMe transport and transports the requests (FC-NVMe FC link services and FC-NVMe commands IUs) to the fabric. It also provides the support for allocating h/w queues and aborting FC-NVMe FC requests. Signed-off-by:
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Duane Grigsby authored
This patch adds logic to handle the completion of FC-NVMe commands and creates a sub-command in the SRB command structure to manage NVMe commands. Signed-off-by:
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Duane Grigsby authored
Added logic to change the login process into an optional PRIL step for FC-NVMe ports as a separate operation, such that we can change type to 0x28 (NVMe). Currently, the driver performs the PLOGI/PRLI together as one operation, but if the discovered port is an NVMe port then we first issue the PLOGI and then we issue the PRLI. Also, the fabric discovery logic was changed to mark each discovered FC NVMe port, so that we can register them with the FC-NVMe transport later. Signed-off-by:
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himanshu.madhani@cavium.com authored
Signed-off-by:
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Quinn Tran authored
Add missing memory dump of Exchange Offload and Extended login into FW dump. Signed-off-by:
Quinn Tran <quinn.tran@cavium.com> Signed-off-by:
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Quinn Tran authored
Move counters to qpair to reduce cache miss. Signed-off-by:
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Quinn Tran authored
These fields only hold one set of value. Replace it with macros to reduce cache thrash. Signed-off-by:
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Quinn Tran authored
By default this flag is forced to true. Remove this flag and unneccessary check for this flag. Signed-off-by:
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Quinn Tran authored
For target main path io routines that uses qpair, create new logging & debugging routines to use qpair instead of reaching for scsi_qla_host to reduce cache thrash. Signed-off-by:
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Quinn Tran authored
Add call back to door bell for qpair. This help reduce access to qla_hw_data structure, in order to reduce cach thrash. Signed-off-by:
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Quinn Tran authored
For ISP27XX, use shadow register to read FW provided REQQ's consumer index. The shadow register is dma'ed by firmware. Signed-off-by:
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Quinn Tran authored
- Move chip_reset, enable_class_2 fields from qla_hw_data to qla_qpair to reduce cache thrash for target MQ. - Optimizations to reduce unnecessary memory load for good path io. Signed-off-by:
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Quinn Tran authored
Add fw_started flag to qpair to reduce cache thrash. This reduce access to qla_hw_data structure by each qpair. Signed-off-by:
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Quinn Tran authored
For Target mode, user can control the work load by placing qla2xxx's irq vector on certain CPU via the smp_affinity knob. This patch allows user to control the number of QPair's irq to be active. The irqs are allocated at driver load time until unload. The work itself is placed on the QPair based on user setting. Usage: modprobe qla2xxx qlini_mode=disabled ql2xuctrlirq=1 mount -t debugfs none /sys/kernel/debug echo 2 > /sys/kernel/debug/qla2xxx/qla2xxx_[host num]/naqp echo [cpu id] > /proc/irq/[irq id]/smp_affinity_list Signed-off-by:
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Sawan Chandak authored
In target mode driver, queue pairs are not created during driver load time, instead they are created at the configuration time after chip reset. If a user tries to load/unload driver after queue pairs are created, then there would be mailbox failure, while deleting queue pairs. Flag is added to check if queue pairs are created or not. Queue pairs will be deleted only If they were created during target configuration. Signed-off-by:
Sawan Chandak <sawan.chandak@cavium.com> Signed-off-by:
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Quinn Tran authored
Enable Multi Queue for Target mode. At Initiator LUN scan time, each LUN is assign to a QPair. Each QPair is affinitize to certain CPU. When new cmd arrives from the wire, the lunid is used to search for qpair. The qpair's affinitized cpuid will be used to queue up the work element. Signed-off-by:
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Quinn Tran authored
In Current code, Req Q 0, RespQ 0 & hardware_lock are the main resources for sending and process completion of Target IO. These resources are now referenced behind a new qpair/"struct qla_qpair base_qpair". Main path IO handle will access those resources via the qpair pointer in preparation for Target MQ. Signed-off-by:
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Quinn Tran authored
Merge active/outstanding cmd arrays from target side and initiator side together in prepration for Target Multi Queue support. Signed-off-by:
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- 26 Jun, 2017 4 commits
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Matthew R. Ochs authored
Currently, the SCSI command presented to the device reset handler is used to send TMFs to the AFU for a device reset. This behavior is incorrect as the command presented is an actual command and not a special notification. As such, it should only be used for reference and not be acted upon. Additionally, the existing TMF transmission routine does not account for actual errors from the hardware, only reflecting failure when a timeout occurs. This can lead to a condition where the device reset handler is presented with a false 'success'. Update send_tmf() to dynamically allocate a private command for sending the TMF command and properly reflect failure when the completed command indicates an error or was aborted. Detect TMF commands during response processing and avoid scsi_done() for these types of commands. Lastly, update comments in the TMF processing paths to describe the new behavior. Signed-off-by:
Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by:
Uma Krishnan <ukrishn@linux.vnet.ibm.com> Signed-off-by:
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Matthew R. Ochs authored
The SCSI core now zeroes the per-command private data area prior to calling into the LLD. Replace the clearing operation that takes place when the private command data reference is obtained with a routine that performs common initializations. The zeroing that takes place in the device reset path remains intact as the private command data associated with the specified SCSI command is not guaranteed to be cleared. Signed-off-by:
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Matthew R. Ochs authored
The cxlflash driver supports performing a write-same16 to scrub virtual luns when they are released by a user. To date, AFUs for adapters that are supported by cxlflash do not have the capability to unmap as part of the WS operation. This can lead to fragmented flash devices which results in performance degradation. Future AFUs can optionally support unmap write-same commands and reflects this support via the context control register. This provides userspace applications with direct visibility such that they need not depend on a host API. Detect unmap support during cxlflash initialization by reading the context control register associated with the primary hardware queue. Update the existing write_same16() routine to set the unmap bit in the CDB when unmap is supported by the host. Signed-off-by:
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Matthew R. Ochs authored
Adopt the SISLite AFU debug capability to allow future CXL Flash adapters the ability to better debug AFU issues. Update the SISLite header with the changes necessary to support AFU debug operations and create a host ioctl interface for user debug software. Also update the cxlflash documentation to describe this new host ioctl. Signed-off-by:
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