Merge tag 'mvebu-dt-4.19-1' of git://git.infradead.org/linux-mvebu into next/dt

[linux-block.git] / drivers / nvme / host / rdma.c

diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index f9affb71ac85d1d5bd535fffe2a136786165eddc..518c5b09038c1e9041a89590a6d79101995650d4 100644 (file)
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -692,7 +692,7 @@ static struct blk_mq_tag_set *nvme_rdma_alloc_tagset(struct nvme_ctrl *nctrl,
                set = &ctrl->tag_set;
                memset(set, 0, sizeof(*set));
                set->ops = &nvme_rdma_mq_ops;
-               set->queue_depth = nctrl->opts->queue_size;
+               set->queue_depth = nctrl->sqsize + 1;
                set->reserved_tags = 1; /* fabric connect */
                set->numa_node = NUMA_NO_NODE;
                set->flags = BLK_MQ_F_SHOULD_MERGE;
@@ -728,13 +728,15 @@ out:
 static void nvme_rdma_destroy_admin_queue(struct nvme_rdma_ctrl *ctrl,
                bool remove)
 {
-       nvme_rdma_stop_queue(&ctrl->queues[0]);
        if (remove) {
                blk_cleanup_queue(ctrl->ctrl.admin_q);
                nvme_rdma_free_tagset(&ctrl->ctrl, ctrl->ctrl.admin_tagset);
        }
-       nvme_rdma_free_qe(ctrl->device->dev, &ctrl->async_event_sqe,
-               sizeof(struct nvme_command), DMA_TO_DEVICE);
+       if (ctrl->async_event_sqe.data) {
+               nvme_rdma_free_qe(ctrl->device->dev, &ctrl->async_event_sqe,
+                               sizeof(struct nvme_command), DMA_TO_DEVICE);
+               ctrl->async_event_sqe.data = NULL;
+       }
        nvme_rdma_free_queue(&ctrl->queues[0]);
 }
 
@@ -817,7 +819,6 @@ out_free_queue:
 static void nvme_rdma_destroy_io_queues(struct nvme_rdma_ctrl *ctrl,
                bool remove)
 {
-       nvme_rdma_stop_io_queues(ctrl);
        if (remove) {
                blk_cleanup_queue(ctrl->ctrl.connect_q);
                nvme_rdma_free_tagset(&ctrl->ctrl, ctrl->ctrl.tagset);
@@ -947,6 +948,7 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work)
        return;
 
 destroy_admin:
+       nvme_rdma_stop_queue(&ctrl->queues[0]);
        nvme_rdma_destroy_admin_queue(ctrl, false);
 requeue:
        dev_info(ctrl->ctrl.device, "Failed reconnect attempt %d\n",
@@ -963,12 +965,14 @@ static void nvme_rdma_error_recovery_work(struct work_struct *work)
 
        if (ctrl->ctrl.queue_count > 1) {
                nvme_stop_queues(&ctrl->ctrl);
+               nvme_rdma_stop_io_queues(ctrl);
                blk_mq_tagset_busy_iter(&ctrl->tag_set,
                                        nvme_cancel_request, &ctrl->ctrl);
                nvme_rdma_destroy_io_queues(ctrl, false);
        }
 
        blk_mq_quiesce_queue(ctrl->ctrl.admin_q);
+       nvme_rdma_stop_queue(&ctrl->queues[0]);
        blk_mq_tagset_busy_iter(&ctrl->admin_tag_set,
                                nvme_cancel_request, &ctrl->ctrl);
        nvme_rdma_destroy_admin_queue(ctrl, false);
@@ -1734,6 +1738,7 @@ static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_ctrl *ctrl, bool shutdown)
 {
        if (ctrl->ctrl.queue_count > 1) {
                nvme_stop_queues(&ctrl->ctrl);
+               nvme_rdma_stop_io_queues(ctrl);
                blk_mq_tagset_busy_iter(&ctrl->tag_set,
                                        nvme_cancel_request, &ctrl->ctrl);
                nvme_rdma_destroy_io_queues(ctrl, shutdown);
@@ -1745,6 +1750,7 @@ static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_ctrl *ctrl, bool shutdown)
                nvme_disable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap);
 
        blk_mq_quiesce_queue(ctrl->ctrl.admin_q);
+       nvme_rdma_stop_queue(&ctrl->queues[0]);
        blk_mq_tagset_busy_iter(&ctrl->admin_tag_set,
                                nvme_cancel_request, &ctrl->ctrl);
        blk_mq_unquiesce_queue(ctrl->ctrl.admin_q);
@@ -1972,20 +1978,19 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
                goto out_remove_admin_queue;
        }
 
-       if (opts->queue_size > ctrl->ctrl.maxcmd) {
-               /* warn if maxcmd is lower than queue_size */
-               dev_warn(ctrl->ctrl.device,
-                       "queue_size %zu > ctrl maxcmd %u, clamping down\n",
-                       opts->queue_size, ctrl->ctrl.maxcmd);
-               opts->queue_size = ctrl->ctrl.maxcmd;
-       }
-
+       /* only warn if argument is too large here, will clamp later */
        if (opts->queue_size > ctrl->ctrl.sqsize + 1) {
-               /* warn if sqsize is lower than queue_size */
                dev_warn(ctrl->ctrl.device,
                        "queue_size %zu > ctrl sqsize %u, clamping down\n",
                        opts->queue_size, ctrl->ctrl.sqsize + 1);
-               opts->queue_size = ctrl->ctrl.sqsize + 1;
+       }
+
+       /* warn if maxcmd is lower than sqsize+1 */
+       if (ctrl->ctrl.sqsize + 1 > ctrl->ctrl.maxcmd) {
+               dev_warn(ctrl->ctrl.device,
+                       "sqsize %u > ctrl maxcmd %u, clamping down\n",
+                       ctrl->ctrl.sqsize + 1, ctrl->ctrl.maxcmd);
+               ctrl->ctrl.sqsize = ctrl->ctrl.maxcmd - 1;
        }
 
        if (opts->nr_io_queues) {
@@ -2011,6 +2016,7 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
        return &ctrl->ctrl;
 
 out_remove_admin_queue:
+       nvme_rdma_stop_queue(&ctrl->queues[0]);
        nvme_rdma_destroy_admin_queue(ctrl, true);
 out_uninit_ctrl:
        nvme_uninit_ctrl(&ctrl->ctrl);