From ceee1953f9239b699d80c5ef366712c3fd865cc2 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 20 Sep 2022 17:21:17 +0200 Subject: [PATCH] nvme-loop: use the tagset alloc/free helpers 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 --- drivers/nvme/target/loop.c | 83 +++++++++++----------------------------------- 1 file changed, 19 insertions(+), 64 deletions(-) diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index 54578cc..b45fe3a 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -266,9 +266,7 @@ static void nvme_loop_destroy_admin_queue(struct nvme_loop_ctrl *ctrl) if (!test_and_clear_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[0].flags)) return; nvmet_sq_destroy(&ctrl->queues[0].nvme_sq); - blk_mq_destroy_queue(ctrl->ctrl.admin_q); - blk_mq_destroy_queue(ctrl->ctrl.fabrics_q); - blk_mq_free_tag_set(&ctrl->admin_tag_set); + nvme_remove_admin_tag_set(&ctrl->ctrl); } static void nvme_loop_free_ctrl(struct nvme_ctrl *nctrl) @@ -282,10 +280,8 @@ static void nvme_loop_free_ctrl(struct nvme_ctrl *nctrl) list_del(&ctrl->list); mutex_unlock(&nvme_loop_ctrl_mutex); - if (nctrl->tagset) { - blk_mq_destroy_queue(ctrl->ctrl.connect_q); - blk_mq_free_tag_set(&ctrl->tag_set); - } + if (nctrl->tagset) + nvme_remove_io_tag_set(nctrl); kfree(ctrl->queues); nvmf_free_options(nctrl->opts); free_ctrl: @@ -350,52 +346,31 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl) { int error; - memset(&ctrl->admin_tag_set, 0, sizeof(ctrl->admin_tag_set)); - ctrl->admin_tag_set.ops = &nvme_loop_admin_mq_ops; - ctrl->admin_tag_set.queue_depth = NVME_AQ_MQ_TAG_DEPTH; - ctrl->admin_tag_set.reserved_tags = NVMF_RESERVED_TAGS; - ctrl->admin_tag_set.numa_node = ctrl->ctrl.numa_node; - ctrl->admin_tag_set.cmd_size = sizeof(struct nvme_loop_iod) + - NVME_INLINE_SG_CNT * sizeof(struct scatterlist); - ctrl->admin_tag_set.driver_data = &ctrl->ctrl; - ctrl->admin_tag_set.nr_hw_queues = 1; - ctrl->admin_tag_set.timeout = NVME_ADMIN_TIMEOUT; - ctrl->admin_tag_set.flags = BLK_MQ_F_NO_SCHED; - ctrl->queues[0].ctrl = ctrl; error = nvmet_sq_init(&ctrl->queues[0].nvme_sq); if (error) return error; ctrl->ctrl.queue_count = 1; - error = blk_mq_alloc_tag_set(&ctrl->admin_tag_set); + error = nvme_alloc_admin_tag_set(&ctrl->ctrl, &ctrl->admin_tag_set, + &nvme_loop_admin_mq_ops, BLK_MQ_F_NO_SCHED, + sizeof(struct nvme_loop_iod) + + NVME_INLINE_SG_CNT * sizeof(struct scatterlist)); if (error) goto out_free_sq; - ctrl->ctrl.admin_tagset = &ctrl->admin_tag_set; - - ctrl->ctrl.fabrics_q = blk_mq_init_queue(&ctrl->admin_tag_set); - if (IS_ERR(ctrl->ctrl.fabrics_q)) { - error = PTR_ERR(ctrl->ctrl.fabrics_q); - goto out_free_tagset; - } - ctrl->ctrl.admin_q = blk_mq_init_queue(&ctrl->admin_tag_set); - if (IS_ERR(ctrl->ctrl.admin_q)) { - error = PTR_ERR(ctrl->ctrl.admin_q); - goto out_cleanup_fabrics_q; - } /* reset stopped state for the fresh admin queue */ clear_bit(NVME_CTRL_ADMIN_Q_STOPPED, &ctrl->ctrl.flags); error = nvmf_connect_admin_queue(&ctrl->ctrl); if (error) - goto out_cleanup_queue; + goto out_cleanup_tagset; set_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[0].flags); error = nvme_enable_ctrl(&ctrl->ctrl); if (error) - goto out_cleanup_queue; + goto out_cleanup_tagset; ctrl->ctrl.max_hw_sectors = (NVME_LOOP_MAX_SEGMENTS - 1) << (PAGE_SHIFT - 9); @@ -404,17 +379,13 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl) error = nvme_init_ctrl_finish(&ctrl->ctrl); if (error) - goto out_cleanup_queue; + goto out_cleanup_tagset; return 0; -out_cleanup_queue: +out_cleanup_tagset: clear_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[0].flags); - blk_mq_destroy_queue(ctrl->ctrl.admin_q); -out_cleanup_fabrics_q: - blk_mq_destroy_queue(ctrl->ctrl.fabrics_q); -out_free_tagset: - blk_mq_free_tag_set(&ctrl->admin_tag_set); + nvme_remove_admin_tag_set(&ctrl->ctrl); out_free_sq: nvmet_sq_destroy(&ctrl->queues[0].nvme_sq); return error; @@ -522,37 +493,21 @@ static int nvme_loop_create_io_queues(struct nvme_loop_ctrl *ctrl) if (ret) return ret; - memset(&ctrl->tag_set, 0, sizeof(ctrl->tag_set)); - ctrl->tag_set.ops = &nvme_loop_mq_ops; - ctrl->tag_set.queue_depth = ctrl->ctrl.opts->queue_size; - ctrl->tag_set.reserved_tags = NVMF_RESERVED_TAGS; - ctrl->tag_set.numa_node = ctrl->ctrl.numa_node; - ctrl->tag_set.flags = BLK_MQ_F_SHOULD_MERGE; - ctrl->tag_set.cmd_size = sizeof(struct nvme_loop_iod) + - NVME_INLINE_SG_CNT * sizeof(struct scatterlist); - ctrl->tag_set.driver_data = &ctrl->ctrl; - ctrl->tag_set.nr_hw_queues = ctrl->ctrl.queue_count - 1; - ctrl->tag_set.timeout = NVME_IO_TIMEOUT; - ctrl->ctrl.tagset = &ctrl->tag_set; - - ret = blk_mq_alloc_tag_set(&ctrl->tag_set); + ret = nvme_alloc_io_tag_set(&ctrl->ctrl, &ctrl->tag_set, + &nvme_loop_mq_ops, BLK_MQ_F_SHOULD_MERGE, + sizeof(struct nvme_loop_iod) + + NVME_INLINE_SG_CNT * sizeof(struct scatterlist)); if (ret) goto out_destroy_queues; - ret = nvme_ctrl_init_connect_q(&(ctrl->ctrl)); - if (ret) - goto out_free_tagset; - ret = nvme_loop_connect_io_queues(ctrl); if (ret) - goto out_cleanup_connect_q; + goto out_cleanup_tagset; return 0; -out_cleanup_connect_q: - blk_mq_destroy_queue(ctrl->ctrl.connect_q); -out_free_tagset: - blk_mq_free_tag_set(&ctrl->tag_set); +out_cleanup_tagset: + nvme_remove_io_tag_set(&ctrl->ctrl); out_destroy_queues: nvme_loop_destroy_io_queues(ctrl); return ret; -- 2.7.4