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authorSagi Grimberg <sagi@grimberg.me>2019-08-22 11:25:46 -0700
committerSagi Grimberg <sagi@grimberg.me>2019-09-12 08:50:46 -0700
commit93da40239b1069ef96bbfe7c8d08edb347e8107a (patch)
tree7f587879301c53f4830064360dc4f95bd5a8f831 /drivers/nvme
parent2d352df57bcd7fee800fa1aa7257e68bfca64d2b (diff)
downloadlinux-93da40239b1069ef96bbfe7c8d08edb347e8107a.tar.bz2
nvme: enable aen regardless of the presence of I/O queues
AENs in general are not related to the presence of I/O queues, so enable them regardless. Note that the only exception is that discovery controller will not support any of the requested AENs and nvme_enable_aen will respect that and return, so it is still safe to enable regardless. Note it is safe to enable AENs even before the initial namespace scanning as we have the scan operation in a workqueue context. Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/core.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 55fc0728764e..573e72139331 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1200,6 +1200,8 @@ static void nvme_enable_aen(struct nvme_ctrl *ctrl)
if (status)
dev_warn(ctrl->device, "Failed to configure AEN (cfg %x)\n",
supported_aens);
+
+ queue_work(nvme_wq, &ctrl->async_event_work);
}
static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
@@ -3785,10 +3787,10 @@ void nvme_start_ctrl(struct nvme_ctrl *ctrl)
if (ctrl->kato)
nvme_start_keep_alive(ctrl);
+ nvme_enable_aen(ctrl);
+
if (ctrl->queue_count > 1) {
nvme_queue_scan(ctrl);
- nvme_enable_aen(ctrl);
- queue_work(nvme_wq, &ctrl->async_event_work);
nvme_start_queues(ctrl);
}
}