kernel/linux.git/drivers/nvme/target/loop.c, branch v6.1.168

nvme: consolidate setting the tagset flags

2023-02-01T07:34:43+00:00

[ Upstream commit db45e1a5ddccc034eb60d62fc5352022d7963ae2 ] All nvme transports should be using the same flags for their tagsets, with the exception for the blocking flag that should only be set for transports that can block in ->queue_rq. Add a NVME_F_BLOCKING flag to nvme_ctrl_ops to control the blocking behavior and lift setting the flags into nvme_alloc_{admin,io}_tag_set. Signed-off-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni Stable-dep-of: 98e3528012cd ("nvme-fc: fix initialization order") Signed-off-by: Sasha Levin

nvme: pass nr_maps explicitly to nvme_alloc_io_tag_set

2022-12-31T12:32:25+00:00

[ Upstream commit dcef77274ae52136925287b6b59d5c6e6a4adfb9 ] Don't look at ctrl->ops as only RDMA and TCP actually support multiple maps. Fixes: 6dfba1c09c10 ("nvme-fc: use the tagset alloc/free helpers") Fixes: ceee1953f923 ("nvme-loop: use the tagset alloc/free helpers") Signed-off-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni Signed-off-by: Sasha Levin

nvme-loop: use the tagset alloc/free helpers

2022-09-27T12:44:17+00:00

Use the common helpers to allocate and free the tagsets. To make this work the generic nvme_ctrl now needs to be stored in the hctx private data instead of the nvme_loop_ctrl. Signed-off-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni

nvme-loop: store the generic nvme_ctrl in set->driver_data

2022-09-27T12:44:17+00:00

Point the private data to the generic controller structure in preparation of using the common tagset init/exit code. Signed-off-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni

nvme-loop: initialize sqsize later

2022-09-27T12:44:17+00:00

Defer initializing the sqsize field from the options until it has been capped by MAXCMD. Signed-off-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni

nvme-loop: use nvme core helpers to cancel all requests in a tagset

2022-08-02T23:14:47+00:00

A helper now exist, no need to open-code the same functionality. Signed-off-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: simplify disk shutdown

2022-06-28T12:30:26+00:00

Set the queue dying flag and call blk_mq_exit_queue from del_gendisk for all disks that do not have separately allocated queues, and thus remove the need to call blk_cleanup_queue for them. Rename blk_cleanup_disk to blk_mq_destroy_queue to make it clear that this function is intended only for separately allocated blk-mq queues. This saves an extra queue freeze for devices without a separately allocated queue. Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Link: https://lore.kernel.org/r/20220619060552.1850436-6-hch@lst.de Signed-off-by: Jens Axboe

nvmet: use a private workqueue instead of the system workqueue

2022-03-29T07:29:04+00:00

Any attempt to flush kernel-global WQs has possibility of deadlock so we should simply stop using them, instead introduce nvmet_wq which is the generic nvmet workqueue for work elements that don't explicitly require a dedicated workqueue (by the mere fact that they are using the system_wq). Changes were done using the following replaces: - s/schedule_work(/queue_work(nvmet_wq, /g - s/schedule_delayed_work(/queue_delayed_work(nvmet_wq, /g - s/flush_scheduled_work()/flush_workqueue(nvmet_wq)/g Reported-by: Tetsuo Handa Signed-off-by: Sagi Grimberg Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig

nvme: add a helper to initialize connect_q

2022-02-28T11:45:06+00:00

Add and use helper to remove duplicate code for fabrics connect_q initialization and error handling for all the transports. Signed-off-by: Chaitanya Kulkarni Signed-off-by: Christoph Hellwig

nvme: loop: clear NVME_CTRL_ADMIN_Q_STOPPED after admin queue is reallocated

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

The nvme-loop's admin queue may be freed and reallocated, and we have to reset the flag of NVME_CTRL_ADMIN_Q_STOPPED so that the flag can match with the quiesce state of the admin queue. nvme-loop is the only driver to reallocate request queue, and not see such usage in other nvme drivers. Signed-off-by: Ming Lei Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20211014081710.1871747-6-ming.lei@redhat.com Signed-off-by: Jens Axboe