nvme: remove handling of multiple AEN requests
The driver can handle tracking only one AEN request, so this patch
removes handling for multiple ones.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 315087d..dedbf12 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2670,15 +2670,7 @@ static void nvme_async_event_work(struct work_struct *work)
struct nvme_ctrl *ctrl =
container_of(work, struct nvme_ctrl, async_event_work);
- spin_lock_irq(&ctrl->lock);
- while (ctrl->state == NVME_CTRL_LIVE && ctrl->event_limit > 0) {
- int aer_idx = --ctrl->event_limit;
-
- spin_unlock_irq(&ctrl->lock);
- ctrl->ops->submit_async_event(ctrl, aer_idx);
- spin_lock_irq(&ctrl->lock);
- }
- spin_unlock_irq(&ctrl->lock);
+ ctrl->ops->submit_async_event(ctrl);
}
static bool nvme_ctrl_pp_status(struct nvme_ctrl *ctrl)
@@ -2745,22 +2737,8 @@ void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status,
union nvme_result *res)
{
u32 result = le32_to_cpu(res->u32);
- bool done = true;
- switch (le16_to_cpu(status) >> 1) {
- case NVME_SC_SUCCESS:
- done = false;
- /*FALLTHRU*/
- case NVME_SC_ABORT_REQ:
- ++ctrl->event_limit;
- if (ctrl->state == NVME_CTRL_LIVE)
- queue_work(nvme_wq, &ctrl->async_event_work);
- break;
- default:
- break;
- }
-
- if (done)
+ if (le16_to_cpu(status) >> 1 != NVME_SC_SUCCESS)
return;
switch (result & 0xff07) {
@@ -2774,12 +2752,12 @@ void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status,
default:
dev_warn(ctrl->device, "async event result %08x\n", result);
}
+ queue_work(nvme_wq, &ctrl->async_event_work);
}
EXPORT_SYMBOL_GPL(nvme_complete_async_event);
void nvme_queue_async_events(struct nvme_ctrl *ctrl)
{
- ctrl->event_limit = NVME_NR_AEN_COMMANDS;
queue_work(nvme_wq, &ctrl->async_event_work);
}
EXPORT_SYMBOL_GPL(nvme_queue_async_events);