diff options
| -rw-r--r-- | drivers/nvme/host/core.c | 31 | ||||
| -rw-r--r-- | include/linux/nvme.h | 4 |
2 files changed, 33 insertions, 2 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 2533b88e66d5..92d90dc82a9b 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -4525,9 +4525,19 @@ static void nvme_fw_act_work(struct work_struct *work) nvme_get_fw_slot_info(ctrl); } +static u32 nvme_aer_type(u32 result) +{ + return result & 0x7; +} + +static u32 nvme_aer_subtype(u32 result) +{ + return (result & 0xff00) >> 8; +} + static void nvme_handle_aen_notice(struct nvme_ctrl *ctrl, u32 result) { - u32 aer_notice_type = (result & 0xff00) >> 8; + u32 aer_notice_type = nvme_aer_subtype(result); trace_nvme_async_event(ctrl, aer_notice_type); @@ -4560,11 +4570,19 @@ static void nvme_handle_aen_notice(struct nvme_ctrl *ctrl, u32 result) } } +static void nvme_handle_aer_persistent_error(struct nvme_ctrl *ctrl) +{ + trace_nvme_async_event(ctrl, NVME_AER_ERROR); + dev_warn(ctrl->device, "resetting controller due to AER\n"); + nvme_reset_ctrl(ctrl); +} + void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status, volatile union nvme_result *res) { u32 result = le32_to_cpu(res->u32); - u32 aer_type = result & 0x07; + u32 aer_type = nvme_aer_type(result); + u32 aer_subtype = nvme_aer_subtype(result); if (le16_to_cpu(status) >> 1 != NVME_SC_SUCCESS) return; @@ -4574,6 +4592,15 @@ void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status, nvme_handle_aen_notice(ctrl, result); break; case NVME_AER_ERROR: + /* + * For a persistent internal error, don't run async_event_work + * to submit a new AER. The controller reset will do it. + */ + if (aer_subtype == NVME_AER_ERROR_PERSIST_INT_ERR) { + nvme_handle_aer_persistent_error(ctrl); + return; + } + fallthrough; case NVME_AER_SMART: case NVME_AER_CSS: case NVME_AER_VS: diff --git a/include/linux/nvme.h b/include/linux/nvme.h index 07cfc922f8e4..3b8fc6c69529 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -712,6 +712,10 @@ enum { }; enum { + NVME_AER_ERROR_PERSIST_INT_ERR = 0x03, +}; + +enum { NVME_AER_NOTICE_NS_CHANGED = 0x00, NVME_AER_NOTICE_FW_ACT_STARTING = 0x01, NVME_AER_NOTICE_ANA = 0x03, |