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nvmet: mask pending AENs

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Per section 5.2 of the NVMe 1.3 spec:

  "When the controller posts a completion queue entry for an outstanding
  Asynchronous Event Request command and thus reports an asynchronous
  event, subsequent events of that event type are automatically masked by
  the controller until the host clears that event. An event is cleared by
  reading the log page associated with that event using the Get Log Page
  command (see section 5.14)."

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
This commit is contained in:
Christoph Hellwig
2018-05-30 15:05:09 +02:00
parent c86b8f7b41
commit 55fdd6b613
3 changed files with 10 additions and 1 deletions
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1
drivers/nvme/target/admin-cmd.c
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@@ -144,6 +144,7 @@ static void nvmet_execute_get_log_changed_ns(struct nvmet_req *req)
if (!status)
status = nvmet_zero_sgl(req, len, req->data_len - len);
ctrl->nr_changed_ns = 0;
clear_bit(NVME_AEN_CFG_NS_ATTR, &ctrl->aen_masked);
mutex_unlock(&ctrl->lock);
out:
nvmet_req_complete(req, status);