kernel/linux.git/drivers/nvme/host/fc.c, branch v5.16

Merge tag 'for-5.16/drivers-2021-10-29' of git://git.kernel.dk/linux-block

2021-11-01T16:27:38+00:00

Pull block driver updates from Jens Axboe: - paride driver cleanups (Christoph) - Remove cryptoloop support (Christoph) - null_blk poll support (me) - Now that add_disk() supports proper error handling, add it to various drivers (Luis) - Make ataflop actually work again (Michael) - s390 dasd fixes (Stefan, Heiko) - nbd fixes (Yu, Ye) - Remove redundant wq flush in mtip32xx (Christophe) - NVMe updates - fix a multipath partition scanning deadlock (Hannes Reinecke) - generate uevent once a multipath namespace is operational again (Hannes Reinecke) - support unique discovery controller NQNs (Hannes Reinecke) - fix use-after-free when a port is removed (Israel Rukshin) - clear shadow doorbell memory on resets (Keith Busch) - use struct_size (Len Baker) - add error handling support for add_disk (Luis Chamberlain) - limit the maximal queue size for RDMA controllers (Max Gurtovoy) - use a few more symbolic names (Max Gurtovoy) - fix error code in nvme_rdma_setup_ctrl (Max Gurtovoy) - add support for ->map_queues on FC (Saurav Kashyap) - support the current discovery subsystem entry (Hannes Reinecke) - use flex_array_size and struct_size (Len Baker) - bcache fixes (Christoph, Coly, Chao, Lin, Qing) - MD updates (Christoph, Guoqing, Xiao) - Misc fixes (Dan, Ding, Jiapeng, Shin'ichiro, Ye) * tag 'for-5.16/drivers-2021-10-29' of git://git.kernel.dk/linux-block: (117 commits) null_blk: Fix handling of submit_queues and poll_queues attributes block: ataflop: Fix warning comparing pointer to 0 bcache: replace snprintf in show functions with sysfs_emit bcache: move uapi header bcache.h to bcache code directory nvmet: use flex_array_size and struct_size nvmet: register discovery subsystem as 'current' nvmet: switch check for subsystem type nvme: add new discovery log page entry definitions block: ataflop: more blk-mq refactoring fixes block: remove support for cryptoloop and the xor transfer mtd: add add_disk() error handling rnbd: add error handling support for add_disk() um/drivers/ubd_kern: add error handling support for add_disk() m68k/emu/nfblock: add error handling support for add_disk() xen-blkfront: add error handling support for add_disk() bcache: add error handling support for add_disk() dm: add add_disk() error handling block: aoe: fixup coccinelle warnings nvmet: use struct_size over open coded arithmetic nvme: drop scan_lock and always kick requeue list when removing namespaces ...

nvme: display correct subsystem NQN

2021-10-20T17:16:02+00:00

With discovery controllers supporting unique subsystem NQNs the actual subsystem NQN might be different from that one passed in via the connect args. So add a helper to display the resulting subsystem NQN. Signed-off-by: Hannes Reinecke Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig

nvme-fc: add support for ->map_queues

2021-10-20T17:16:00+00:00

NVMe FC don't have support for map queues, unlike the PCI, RDMA and TCP transports. Add a ->map_queues callout for the LLDDs to provide such functionality. Signed-off-by: Saurav Kashyap Signed-off-by: Nilesh Javali Signed-off-by: Christoph Hellwig

nvme: apply nvme API to quiesce/unquiesce admin queue

2021-10-20T00:27:58+00:00

Apply the added two APIs to quiesce/unquiesce admin queue. Signed-off-by: Ming Lei Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20211014081710.1871747-3-ming.lei@redhat.com Signed-off-by: Jens Axboe

nvme-fc: remove freeze/unfreeze around update_nr_hw_queues

2021-09-21T07:17:12+00:00

Remove the freeze/unfreeze around changes to the number of hardware queues. Study and retest has indicated there are no ios that can be active at this point so there is nothing to freeze. nvme-fc is draining the queues in the shutdown and error recovery path in __nvme_fc_abort_outstanding_ios. This patch primarily reverts 88e837ed0f1f "nvme-fc: wait for queues to freeze before calling update_hr_hw_queues". It's not an exact revert as it leaves the adjusting of hw queues only if the count changes. Signed-off-by: James Smart [dwagner: added explanation why no IO is pending] Signed-off-by: Daniel Wagner Reviewed-by: Ming Lei Reviewed-by: Himanshu Madhani Reviewed-by: Hannes Reinecke Signed-off-by: Christoph Hellwig

nvme-fc: avoid race between time out and tear down

2021-09-21T07:17:12+00:00

To avoid race between time out and tear down, in tear down process, first we quiesce the queue, and then delete the timer and cancel the time out work for the queue. This patch merges the admin and io sync ops into the queue teardown logic as shown in the RDMA patch 3017013dcc "nvme-rdma: avoid race between time out and tear down". There is no teardown_lock in nvme-fc. Signed-off-by: James Smart Tested-by: Daniel Wagner Reviewed-by: Himanshu Madhani Reviewed-by: Hannes Reinecke Reviewed-by: Daniel Wagner Signed-off-by: Christoph Hellwig

nvme-fc: update hardware queues before using them

2021-09-21T07:17:09+00:00

In case the number of hardware queues changes, we need to update the tagset and the mapping of ctx to hctx first. If we try to create and connect the I/O queues first, this operation will fail (target will reject the connect call due to the wrong number of queues) and hence we bail out of the recreate function. Then we will to try the very same operation again, thus we don't make any progress. Signed-off-by: Daniel Wagner Reviewed-by: Ming Lei Reviewed-by: Himanshu Madhani Reviewed-by: Hannes Reinecke Reviewed-by: James Smart Signed-off-by: Christoph Hellwig

Merge tag 'block-5.14-2021-07-08' of git://git.kernel.dk/linux-block

2021-07-09T19:05:33+00:00

Pull more block updates from Jens Axboe: "A combination of changes that ended up depending on both the driver and core branch (and/or the IDE removal), and a few late arriving fixes. In detail: - Fix io ticks wrap-around issue (Chunguang) - nvme-tcp sock locking fix (Maurizio) - s390-dasd fixes (Kees, Christoph) - blk_execute_rq polling support (Keith) - blk-cgroup RCU iteration fix (Yu) - nbd backend ID addition (Prasanna) - Partition deletion fix (Yufen) - Use blk_mq_alloc_disk for mmc, mtip32xx, ubd (Christoph) - Removal of now dead block request types due to IDE removal (Christoph) - Loop probing and control device cleanups (Christoph) - Device uevent fix (Christoph) - Misc cleanups/fixes (Tetsuo, Christoph)" * tag 'block-5.14-2021-07-08' of git://git.kernel.dk/linux-block: (34 commits) blk-cgroup: prevent rcu_sched detected stalls warnings while iterating blkgs block: fix the problem of io_ticks becoming smaller nvme-tcp: can't set sk_user_data without write_lock loop: remove unused variable in loop_set_status() block: remove the bdgrab in blk_drop_partitions block: grab a device refcount in disk_uevent s390/dasd: Avoid field over-reading memcpy() dasd: unexport dasd_set_target_state block: check disk exist before trying to add partition ubd: remove dead code in ubd_setup_common nvme: use return value from blk_execute_rq() block: return errors from blk_execute_rq() nvme: use blk_execute_rq() for passthrough commands block: support polling through blk_execute_rq block: remove REQ_OP_SCSI_{IN,OUT} block: mark blk_mq_init_queue_data static loop: rewrite loop_exit using idr_for_each_entry loop: split loop_lookup loop: don't allow deleting an unspecified loop device loop: move loop_ctl_mutex locking into loop_add ...

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2021-07-02T22:14:36+00:00

Pull SCSI updates from James Bottomley: "This series consists of the usual driver updates (ufs, ibmvfc, megaraid_sas, lpfc, elx, mpi3mr, qedi, iscsi, storvsc, mpt3sas) with elx and mpi3mr being new drivers. The major core change is a rework to drop the status byte handling macros and the old bit shifted definitions and the rest of the updates are minor fixes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (287 commits) scsi: aha1740: Avoid over-read of sense buffer scsi: arcmsr: Avoid over-read of sense buffer scsi: ips: Avoid over-read of sense buffer scsi: ufs: ufs-mediatek: Add missing of_node_put() in ufs_mtk_probe() scsi: elx: libefc: Fix IRQ restore in efc_domain_dispatch_frame() scsi: elx: libefc: Fix less than zero comparison of a unsigned int scsi: elx: efct: Fix pointer error checking in debugfs init scsi: elx: efct: Fix is_originator return code type scsi: elx: efct: Fix link error for _bad_cmpxchg scsi: elx: efct: Eliminate unnecessary boolean check in efct_hw_command_cancel() scsi: elx: efct: Do not use id uninitialized in efct_lio_setup_session() scsi: elx: efct: Fix error handling in efct_hw_init() scsi: elx: efct: Remove redundant initialization of variable lun scsi: elx: efct: Fix spelling mistake "Unexected" -> "Unexpected" scsi: lpfc: Fix build error in lpfc_scsi.c scsi: target: iscsi: Remove redundant continue statement scsi: qla4xxx: Remove redundant continue statement scsi: ppa: Switch to use module_parport_driver() scsi: imm: Switch to use module_parport_driver() scsi: mpt3sas: Fix error return value in _scsih_expander_add() ...

nvme: use blk_execute_rq() for passthrough commands

2021-06-30T21:35:38+00:00

The generic blk_execute_rq() knows how to handle polled completions. Use that instead of implementing an nvme specific handler. Signed-off-by: Keith Busch Reviewed-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Link: https://lore.kernel.org/r/20210610214437.641245-3-kbusch@kernel.org Signed-off-by: Jens Axboe