diff options
Diffstat (limited to 'doc/rst/mi.rst')
| -rw-r--r-- | doc/rst/mi.rst | 1457 |
1 files changed, 1437 insertions, 20 deletions
diff --git a/doc/rst/mi.rst b/doc/rst/mi.rst index 0da53a5..3eaa20c 100644 --- a/doc/rst/mi.rst +++ b/doc/rst/mi.rst @@ -578,6 +578,28 @@ This is the generic response format with the three doublewords of completion queue data, plus optional response data. +.. c:function:: const char * nvme_mi_status_to_string (int status) + + return a string representation of the MI status. + +**Parameters** + +``int status`` + MI response status + +**Description** + +Gives a string description of **status**, as per section 4.1.2 of the NVMe-MI +spec. The status value should be of type NVME_STATUS_MI, and extracted +from the return value using nvme_status_get_value(). + +Returned string is const, and should not be free()ed. + +**Return** + +A string representing the status value + + .. c:function:: nvme_root_t nvme_mi_create_root (FILE *fp, int log_level) Create top-level MI (root) handle. @@ -949,7 +971,8 @@ See: :c:type:`nvme_mi_for_each_ctrl` **Return** -0 on success, non-zero on failure +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. .. c:function:: nvme_mi_ctrl_t nvme_mi_init_ctrl (nvme_mi_ep_t ep, __u16 ctrl_id) @@ -1027,7 +1050,8 @@ NVMe version information. See :c:type:`struct nvme_mi_read_nvm_ss_info <nvme_mi_ **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_read_mi_data_port (nvme_mi_ep_t ep, __u8 portid, struct nvme_mi_read_port_info *p) @@ -1055,7 +1079,8 @@ See :c:type:`struct nvme_mi_read_port_info <nvme_mi_read_port_info>`. **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_read_mi_data_ctrl_list (nvme_mi_ep_t ep, __u8 start_ctrlid, struct nvme_ctrl_list *list) @@ -1082,7 +1107,8 @@ See :c:type:`struct nvme_ctrl_list <nvme_ctrl_list>`. **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_read_mi_data_ctrl (nvme_mi_ep_t ep, __u16 ctrl_id, struct nvme_mi_read_ctrl_info *ctrl) @@ -1109,7 +1135,8 @@ See :c:type:`struct nvme_mi_read_ctrl_info <nvme_mi_read_ctrl_info>`. **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_subsystem_health_status_poll (nvme_mi_ep_t ep, bool clear, struct nvme_mi_nvm_ss_health_status *nshds) @@ -1137,7 +1164,8 @@ See :c:type:`struct nvme_mi_nvm_ss_health_status <nvme_mi_nvm_ss_health_status>` **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_config_get (nvme_mi_ep_t ep, __u32 dw0, __u32 dw1, __u32 *nmresp) @@ -1172,7 +1200,8 @@ See :c:type:`enum nvme_mi_config_id <nvme_mi_config_id>` for identifiers. **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_config_set (nvme_mi_ep_t ep, __u32 dw0, __u32 dw1) @@ -1200,7 +1229,8 @@ See :c:type:`enum nvme_mi_config_id <nvme_mi_config_id>` for identifiers. **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_config_get_smbus_freq (nvme_mi_ep_t ep, __u8 port, enum nvme_mi_config_smbus_freq *freq) @@ -1226,7 +1256,8 @@ frequency **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_config_set_smbus_freq (nvme_mi_ep_t ep, __u8 port, enum nvme_mi_config_smbus_freq freq) @@ -1254,7 +1285,8 @@ for the port. **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_config_set_health_status_change (nvme_mi_ep_t ep, __u32 mask) @@ -1281,7 +1313,8 @@ values in **mask**. **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_config_get_mctp_mtu (nvme_mi_ep_t ep, __u8 port, __u16 *mtu) @@ -1312,7 +1345,8 @@ may not accept MCTP messages larger than the configured MTU. **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_mi_config_set_mctp_mtu (nvme_mi_ep_t ep, __u8 port, __u16 mtu) @@ -1342,7 +1376,8 @@ interface(s) to match. **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_admin_xfer (nvme_mi_ctrl_t ctrl, struct nvme_mi_admin_req_hdr *admin_req, size_t req_data_size, struct nvme_mi_admin_resp_hdr *admin_resp, off_t resp_data_offset, size_t *resp_data_size) @@ -1388,7 +1423,8 @@ See: :c:type:`struct nvme_mi_admin_req_hdr <nvme_mi_admin_req_hdr>` and :c:type: **Return** -0 on success, non-zero on failure. +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise.. .. c:function:: int nvme_mi_admin_identify_partial (nvme_mi_ctrl_t ctrl, struct nvme_identify_args *args, off_t offset, size_t size) @@ -1429,7 +1465,8 @@ See: :c:type:`struct nvme_identify_args <nvme_identify_args>` **Return** -0 on success, non-zero on failure +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. .. c:function:: int nvme_mi_admin_identify (nvme_mi_ctrl_t ctrl, struct nvme_identify_args *args) @@ -1457,7 +1494,8 @@ See: :c:type:`struct nvme_identify_args <nvme_identify_args>` **Return** -0 on success, non-zero on failure +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. .. c:function:: int nvme_mi_admin_identify_cns_nsid (nvme_mi_ctrl_t ctrl, enum nvme_identify_cns cns, __u32 nsid, void *data) @@ -1491,7 +1529,86 @@ controller) is not a full :c:type:`NVME_IDENTIFY_DATA_SIZE`. **Return** -0 on success, non-zero on failure +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_identify_ns (nvme_mi_ctrl_t ctrl, __u32 nsid, struct nvme_id_ns *ns) + + Perform an Admin identify command for a namespace + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to process identify command + +``__u32 nsid`` + namespace ID + +``struct nvme_id_ns *ns`` + Namespace identification to populate + +**Description** + +Perform an Identify (namespace) command, setting the namespace id data +in **ns**. The namespace is expected to active and allocated. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_identify_ns_descs (nvme_mi_ctrl_t ctrl, __u32 nsid, struct nvme_ns_id_desc *descs) + + Perform an Admin identify Namespace Identification Descriptor list command for a namespace + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to process identify command + +``__u32 nsid`` + Namespace ID + +``struct nvme_ns_id_desc *descs`` + Namespace Identification Descriptor list to populate + +**Description** + +Perform an Identify namespace identification description list command, +setting the namespace identification description list in **descs** + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_identify_allocated_ns (nvme_mi_ctrl_t ctrl, __u32 nsid, struct nvme_id_ns *ns) + + Perform an Admin identify command for an allocated namespace + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to process identify command + +``__u32 nsid`` + namespace ID + +``struct nvme_id_ns *ns`` + Namespace identification to populate + +**Description** + +Perform an Identify (namespace) command, setting the namespace id data +in **ns**. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. .. c:function:: int nvme_mi_admin_identify_ctrl (nvme_mi_ctrl_t ctrl, struct nvme_id_ctrl *id) @@ -1519,7 +1636,8 @@ See: :c:type:`struct nvme_id_ctrl <nvme_id_ctrl>` **Return** -0 on success, non-zero on failure +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. .. c:function:: int nvme_mi_admin_identify_ctrl_list (nvme_mi_ctrl_t ctrl, __u16 cntid, struct nvme_ctrl_list *list) @@ -1550,6 +1668,174 @@ See: :c:type:`struct nvme_ctrl_list <nvme_ctrl_list>` **Return** +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_identify_nsid_ctrl_list (nvme_mi_ctrl_t ctrl, __u32 nsid, __u16 cntid, struct nvme_ctrl_list *list) + + Perform an Admin identify for a controller list with specific namespace ID + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to process identify command + +``__u32 nsid`` + Namespace identifier + +``__u16 cntid`` + Controller ID to specify list start + +``struct nvme_ctrl_list *list`` + List data to populate + +**Description** + +Perform an Identify command, for the controller list for **nsid**, starting +with IDs greater than or equal to **cntid**. + +Will return an error if the length of the response data (from the +controller) is not a full :c:type:`NVME_IDENTIFY_DATA_SIZE`, so **id** will be +fully populated on success. + +See: :c:type:`struct nvme_ctrl_list <nvme_ctrl_list>` + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_identify_allocated_ns_list (nvme_mi_ctrl_t ctrl, __u32 nsid, struct nvme_ns_list *list) + + Perform an Admin identify for an allocated namespace list + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to process identify command + +``__u32 nsid`` + Namespace ID to specify list start + +``struct nvme_ns_list *list`` + List data to populate + +**Description** + +Perform an Identify command, for the allocated namespace list starting with +IDs greater than or equal to **nsid**. Specify :c:type:`NVME_NSID_NONE` for the start +of the list. + +Will return an error if the length of the response data (from the +controller) is not a full :c:type:`NVME_IDENTIFY_DATA_SIZE`, so **list** will be +be fully populated on success. + +See: :c:type:`struct nvme_ns_list <nvme_ns_list>` + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_identify_active_ns_list (nvme_mi_ctrl_t ctrl, __u32 nsid, struct nvme_ns_list *list) + + Perform an Admin identify for an active namespace list + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to process identify command + +``__u32 nsid`` + Namespace ID to specify list start + +``struct nvme_ns_list *list`` + List data to populate + +**Description** + +Perform an Identify command, for the active namespace list starting with +IDs greater than or equal to **nsid**. Specify :c:type:`NVME_NSID_NONE` for the start +of the list. + +Will return an error if the length of the response data (from the +controller) is not a full :c:type:`NVME_IDENTIFY_DATA_SIZE`, so **list** will be +be fully populated on success. + +See: :c:type:`struct nvme_ns_list <nvme_ns_list>` + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_identify_primary_ctrl (nvme_mi_ctrl_t ctrl, __u16 cntid, struct nvme_primary_ctrl_cap *cap) + + Perform an Admin identify for primary controller capabilities data structure. + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to process identify command + +``__u16 cntid`` + Controller ID to specify + +``struct nvme_primary_ctrl_cap *cap`` + Primary Controller Capabilities data structure to populate + +**Description** + +Perform an Identify command to get the Primary Controller Capabilities data +for the controller specified by **cntid** + +Will return an error if the length of the response data (from the +controller) is not a full :c:type:`NVME_IDENTIFY_DATA_SIZE`, so **cap** will be +be fully populated on success. + +See: :c:type:`struct nvme_primary_ctrl_cap <nvme_primary_ctrl_cap>` + +**Return** + +0 on success, non-zero on failure + + +.. c:function:: int nvme_mi_admin_identify_secondary_ctrl_list (nvme_mi_ctrl_t ctrl, __u32 nsid, __u16 cntid, struct nvme_secondary_ctrl_list *list) + + Perform an Admin identify for a secondary controller list. + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to process identify command + +``__u32 nsid`` + Namespace ID to specify list start + +``__u16 cntid`` + Controller ID to specify list start + +``struct nvme_secondary_ctrl_list *list`` + List data to populate + +**Description** + +Perform an Identify command, for the secondary controllers associated with +the current primary controller. Only entries with IDs greater than or +equal to **cntid** are returned. + +Will return an error if the length of the response data (from the +controller) is not a full :c:type:`NVME_IDENTIFY_DATA_SIZE`, so **list** will be +be fully populated on success. + +See: :c:type:`struct nvme_secondary_ctrl_list <nvme_secondary_ctrl_list>` + +**Return** + 0 on success, non-zero on failure @@ -1579,7 +1865,782 @@ See: :c:type:`struct nvme_get_log_args <nvme_get_log_args>` **Return** -0 on success, non-zero on failure +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_nsid_log (nvme_mi_ctrl_t ctrl, bool rae, enum nvme_cmd_get_log_lid lid, __u32 nsid, __u32 len, void *log) + + Helper for Get Log Page functions + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain Asynchronous Events + +``enum nvme_cmd_get_log_lid lid`` + Log identifier + +``__u32 nsid`` + Namespace ID + +``__u32 len`` + length of log buffer + +``void *log`` + pointer for resulting log data + +**Description** + +Performs a Get Log Page Admin command for a specific log ID **lid** and +namespace ID **nsid**. Log data is expected to be **len** bytes, and is stored +in **log** on success. The **rae** flag is passed as-is to the Get Log Page +command, and is specific to the Log Page requested. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_simple (nvme_mi_ctrl_t ctrl, enum nvme_cmd_get_log_lid lid, __u32 len, void *log) + + Helper for Get Log Page functions with no NSID or RAE requirements + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``enum nvme_cmd_get_log_lid lid`` + Log identifier + +``__u32 len`` + length of log buffer + +``void *log`` + pointer for resulting log data + +**Description** + +Performs a Get Log Page Admin command for a specific log ID **lid**, using +NVME_NSID_ALL for the namespace identifier, and rae set to false. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_supported_log_pages (nvme_mi_ctrl_t ctrl, bool rae, struct nvme_supported_log_pages *log) + + Retrieve nmve supported log pages + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``struct nvme_supported_log_pages *log`` + Array of LID supported and Effects data structures + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_error (nvme_mi_ctrl_t ctrl, unsigned int nr_entries, bool rae, struct nvme_error_log_page *err_log) + + Retrieve nvme error log + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``unsigned int nr_entries`` + Number of error log entries allocated + +``bool rae`` + Retain asynchronous events + +``struct nvme_error_log_page *err_log`` + Array of error logs of size 'entries' + +**Description** + +This log page describes extended error information for a command that +completed with error, or may report an error that is not specific to a +particular command. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_smart (nvme_mi_ctrl_t ctrl, __u32 nsid, bool rae, struct nvme_smart_log *smart_log) + + Retrieve nvme smart log + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``__u32 nsid`` + Optional namespace identifier + +``bool rae`` + Retain asynchronous events + +``struct nvme_smart_log *smart_log`` + User address to store the smart log + +**Description** + +This log page provides SMART and general health information. The information +provided is over the life of the controller and is retained across power +cycles. To request the controller log page, the namespace identifier +specified is FFFFFFFFh. The controller may also support requesting the log +page on a per namespace basis, as indicated by bit 0 of the LPA field in the +Identify Controller data structure. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_fw_slot (nvme_mi_ctrl_t ctrl, bool rae, struct nvme_firmware_slot *fw_log) + + Retrieves the controller firmware log + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``struct nvme_firmware_slot *fw_log`` + User address to store the log page + +**Description** + +This log page describes the firmware revision stored in each firmware slot +supported. The firmware revision is indicated as an ASCII string. The log +page also indicates the active slot number. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_changed_ns_list (nvme_mi_ctrl_t ctrl, bool rae, struct nvme_ns_list *ns_log) + + Retrieve namespace changed list + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``struct nvme_ns_list *ns_log`` + User address to store the log page + +**Description** + +This log page describes namespaces attached to this controller that have +changed since the last time the namespace was identified, been added, or +deleted. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_cmd_effects (nvme_mi_ctrl_t ctrl, enum nvme_csi csi, struct nvme_cmd_effects_log *effects_log) + + Retrieve nvme command effects log + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``enum nvme_csi csi`` + Command Set Identifier + +``struct nvme_cmd_effects_log *effects_log`` + User address to store the effects log + +**Description** + +This log page describes the commands that the controller supports and the +effects of those commands on the state of the NVM subsystem. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_device_self_test (nvme_mi_ctrl_t ctrl, struct nvme_self_test_log *log) + + Retrieve the device self test log + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``struct nvme_self_test_log *log`` + Userspace address of the log payload + +**Description** + +The log page indicates the status of an in progress self test and the +percent complete of that operation, and the results of the previous 20 +self-test operations. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_create_telemetry_host (nvme_mi_ctrl_t ctrl, struct nvme_telemetry_log *log) + + Create host telemetry log + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``struct nvme_telemetry_log *log`` + Userspace address of the log payload + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_telemetry_host (nvme_mi_ctrl_t ctrl, __u64 offset, __u32 len, void *log) + + Get Telemetry Host-Initiated log page + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``__u64 offset`` + Offset into the telemetry data + +``__u32 len`` + Length of provided user buffer to hold the log data in bytes + +``void *log`` + User address for log page data + +**Description** + +Retrieves the Telemetry Host-Initiated log page at the requested offset +using the previously existing capture. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_telemetry_ctrl (nvme_mi_ctrl_t ctrl, bool rae, __u64 offset, __u32 len, void *log) + + Get Telemetry Controller-Initiated log page + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``__u64 offset`` + Offset into the telemetry data + +``__u32 len`` + Length of provided user buffer to hold the log data in bytes + +``void *log`` + User address for log page data + +**Description** + +Retrieves the Telemetry Controller-Initiated log page at the requested offset +using the previously existing capture. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_endurance_group (nvme_mi_ctrl_t ctrl, __u16 endgid, struct nvme_endurance_group_log *log) + + Get Endurance Group log + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``__u16 endgid`` + Starting group identifier to return in the list + +``struct nvme_endurance_group_log *log`` + User address to store the endurance log + +**Description** + +This log page indicates if an Endurance Group Event has occurred for a +particular Endurance Group. If an Endurance Group Event has occurred, the +details of the particular event are included in the Endurance Group +Information log page for that Endurance Group. An asynchronous event is +generated when an entry for an Endurance Group is newly added to this log +page. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_predictable_lat_nvmset (nvme_mi_ctrl_t ctrl, __u16 nvmsetid, struct nvme_nvmset_predictable_lat_log *log) + + Predictable Latency Per NVM Set + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``__u16 nvmsetid`` + NVM set id + +``struct nvme_nvmset_predictable_lat_log *log`` + User address to store the predictable latency log + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_predictable_lat_event (nvme_mi_ctrl_t ctrl, bool rae, __u32 offset, __u32 len, void *log) + + Retrieve Predictable Latency Event Aggregate Log Page + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``__u32 offset`` + Offset into the predictable latency event + +``__u32 len`` + Length of provided user buffer to hold the log data in bytes + +``void *log`` + User address for log page data + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_ana (nvme_mi_ctrl_t ctrl, enum nvme_log_ana_lsp lsp, bool rae, __u64 offset, __u32 len, void *log) + + Retrieve Asymmetric Namespace Access log page + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``enum nvme_log_ana_lsp lsp`` + Log specific, see :c:type:`enum nvme_get_log_ana_lsp <nvme_get_log_ana_lsp>` + +``bool rae`` + Retain asynchronous events + +``__u64 offset`` + Offset to the start of the log page + +``__u32 len`` + The allocated length of the log page + +``void *log`` + User address to store the ana log + +**Description** + +This log consists of a header describing the log and descriptors containing +the asymmetric namespace access information for ANA Groups that contain +namespaces that are attached to the controller processing the command. + +See :c:type:`struct nvme_ana_rsp_hdr <nvme_ana_rsp_hdr>` for the definition of the returned structure. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_ana_groups (nvme_mi_ctrl_t ctrl, bool rae, __u32 len, struct nvme_ana_group_desc *log) + + Retrieve Asymmetric Namespace Access groups only log page + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``__u32 len`` + The allocated length of the log page + +``struct nvme_ana_group_desc *log`` + User address to store the ana group log + +**Description** + +See :c:type:`struct nvme_ana_group_desc <nvme_ana_group_desc>` for the definition of the returned structure. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_lba_status (nvme_mi_ctrl_t ctrl, bool rae, __u64 offset, __u32 len, void *log) + + Retrieve LBA Status + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``__u64 offset`` + Offset to the start of the log page + +``__u32 len`` + The allocated length of the log page + +``void *log`` + User address to store the log page + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_endurance_grp_evt (nvme_mi_ctrl_t ctrl, bool rae, __u32 offset, __u32 len, void *log) + + Retrieve Rotational Media Information + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``__u32 offset`` + Offset to the start of the log page + +``__u32 len`` + The allocated length of the log page + +``void *log`` + User address to store the log page + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_fid_supported_effects (nvme_mi_ctrl_t ctrl, bool rae, struct nvme_fid_supported_effects_log *log) + + Retrieve Feature Identifiers Supported and Effects + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``struct nvme_fid_supported_effects_log *log`` + FID Supported and Effects data structure + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_mi_cmd_supported_effects (nvme_mi_ctrl_t ctrl, bool rae, struct nvme_mi_cmd_supported_effects_log *log) + + displays the MI Commands Supported by the controller + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``struct nvme_mi_cmd_supported_effects_log *log`` + MI Command Supported and Effects data structure + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_boot_partition (nvme_mi_ctrl_t ctrl, bool rae, __u8 lsp, __u32 len, struct nvme_boot_partition *part) + + Retrieve Boot Partition + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``__u8 lsp`` + The log specified field of LID + +``__u32 len`` + The allocated size, minimum + struct nvme_boot_partition + +``struct nvme_boot_partition *part`` + User address to store the log page + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_discovery (nvme_mi_ctrl_t ctrl, bool rae, __u32 offset, __u32 len, void *log) + + Retrieve Discovery log page + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``__u32 offset`` + Offset of this log to retrieve + +``__u32 len`` + The allocated size for this portion of the log + +``void *log`` + User address to store the discovery log + +**Description** + +Supported only by fabrics discovery controllers, returning discovery +records. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_media_unit_stat (nvme_mi_ctrl_t ctrl, __u16 domid, struct nvme_media_unit_stat_log *mus) + + Retrieve Media Unit Status + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``__u16 domid`` + Domain Identifier selection, if supported + +``struct nvme_media_unit_stat_log *mus`` + User address to store the Media Unit statistics log + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_support_cap_config_list (nvme_mi_ctrl_t ctrl, __u16 domid, struct nvme_supported_cap_config_list_log *cap) + + Retrieve Supported Capacity Configuration List + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``__u16 domid`` + Domain Identifier selection, if supported + +``struct nvme_supported_cap_config_list_log *cap`` + User address to store supported capabilities config list + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_reservation (nvme_mi_ctrl_t ctrl, bool rae, struct nvme_resv_notification_log *log) + + Retrieve Reservation Notification + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``struct nvme_resv_notification_log *log`` + User address to store the reservation log + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_sanitize (nvme_mi_ctrl_t ctrl, bool rae, struct nvme_sanitize_log_page *log) + + Retrieve Sanitize Status + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``bool rae`` + Retain asynchronous events + +``struct nvme_sanitize_log_page *log`` + User address to store the sanitize log + +**Description** + +The Sanitize Status log page reports sanitize operation time estimates and +information about the most recent sanitize operation. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_zns_changed_zones (nvme_mi_ctrl_t ctrl, __u32 nsid, bool rae, struct nvme_zns_changed_zone_log *log) + + Retrieve list of zones that have changed + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``__u32 nsid`` + Namespace ID + +``bool rae`` + Retain asynchronous events + +``struct nvme_zns_changed_zone_log *log`` + User address to store the changed zone log + +**Description** + +The list of zones that have changed state due to an exceptional event. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_log_persistent_event (nvme_mi_ctrl_t ctrl, enum nvme_pevent_log_action action, __u32 size, void *pevent_log) + + Retrieve Persistent Event Log + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to query + +``enum nvme_pevent_log_action action`` + Action the controller should take during processing this command + +``__u32 size`` + Size of **pevent_log** + +``void *pevent_log`` + User address to store the persistent event log + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. .. c:function:: int nvme_mi_admin_security_send (nvme_mi_ctrl_t ctrl, struct nvme_security_send_args *args) @@ -1608,7 +2669,8 @@ See: :c:type:`struct nvme_get_log_args <nvme_get_log_args>` **Return** -0 on success, non-zero on failure +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. .. c:function:: int nvme_mi_admin_security_recv (nvme_mi_ctrl_t ctrl, struct nvme_security_receive_args *args) @@ -1637,6 +2699,361 @@ See: :c:type:`struct nvme_get_log_args <nvme_get_log_args>` **Return** +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_features (nvme_mi_ctrl_t ctrl, struct nvme_get_features_args *args) + + Perform a Get Feature command on a controller + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``struct nvme_get_features_args *args`` + Get Features command arguments + +**Description** + +Performs a Get Features Admin command as specified by **args**. Returned +feature data will be stored in **args->result** and **args->data**, depending +on the specification of the feature itself; most features do not return +additional data. See section 5.27.1 of the NVMe spec (v2.0b) for +feature-specific information. + +On success, **args->data_len** will be updated with the actual data length +received. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_features_data (nvme_mi_ctrl_t ctrl, enum nvme_features_id fid, __u32 nsid, __u32 data_len, void *data, __u32 *result) + + Helper function for :c:type:`nvme_mi_admin_get_features`() + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``enum nvme_features_id fid`` + Feature identifier + +``__u32 nsid`` + Namespace ID, if applicable for **fid** + +``__u32 data_len`` + Length of feature data, if applicable for **fid**, in bytes + +``void *data`` + User address of feature data, if applicable + +``__u32 *result`` + The command completion result from CQE dword0 + +**Description** + +Helper for optionally features that optionally return data, using the +SEL_CURRENT selector value. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_get_features_simple (nvme_mi_ctrl_t ctrl, enum nvme_features_id fid, __u32 nsid, __u32 *result) + + Get a simple feature value with no data + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``enum nvme_features_id fid`` + Feature identifier + +``__u32 nsid`` + Namespace id, if required by **fid** + +``__u32 *result`` + output feature data + + +.. c:function:: int nvme_mi_admin_set_features (nvme_mi_ctrl_t ctrl, struct nvme_set_features_args *args) + + Perform a Set Features command on a controller + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``struct nvme_set_features_args *args`` + Set Features command arguments + +**Description** + +Performs a Set Features Admin command as specified by **args**. Result +data will be stored in **args->result**. +on the specification of the feature itself; most features do not return +additional data. See section 5.27.1 of the NVMe spec (v2.0b) for +feature-specific information. + +On success, **args->data_len** will be updated with the actual data length +received. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_ns_mgmt (nvme_mi_ctrl_t ctrl, struct nvme_ns_mgmt_args *args) + + Issue a Namespace Management command + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``struct nvme_ns_mgmt_args *args`` + Namespace management command arguments + +**Description** + +Issues a Namespace Management command to **ctrl**, with arguments specified +from **args**. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_ns_mgmt_create (nvme_mi_ctrl_t ctrl, struct nvme_id_ns *ns, __u8 csi, __u32 *nsid) + + Helper for Namespace Management Create command + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``struct nvme_id_ns *ns`` + New namespace parameters + +``__u8 csi`` + Command Set Identifier for new NS + +``__u32 *nsid`` + Set to new namespace ID on create + +**Description** + +Issues a Namespace Management (Create) command to **ctrl**, to create a +new namespace specified by **ns**, using command set **csi**. On success, +the new namespace ID will be written to **nsid**. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_ns_mgmt_delete (nvme_mi_ctrl_t ctrl, __u32 nsid) + + Helper for Namespace Management Delete command + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``__u32 nsid`` + Namespace ID to delete + +**Description** + +Issues a Namespace Management (Delete) command to **ctrl**, to delete the +namespace with id **nsid**. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_ns_attach (nvme_mi_ctrl_t ctrl, struct nvme_ns_attach_args *args) + + Attach or detach namespace to controller(s) + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``struct nvme_ns_attach_args *args`` + Namespace Attach command arguments + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_ns_attach_ctrls (nvme_mi_ctrl_t ctrl, __u32 nsid, struct nvme_ctrl_list *ctrlist) + + Attach namespace to controllers + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``__u32 nsid`` + Namespace ID to attach + +``struct nvme_ctrl_list *ctrlist`` + Controller list to modify attachment state of nsid + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_ns_detach_ctrls (nvme_mi_ctrl_t ctrl, __u32 nsid, struct nvme_ctrl_list *ctrlist) + + Detach namespace from controllers + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``__u32 nsid`` + Namespace ID to detach + +``struct nvme_ctrl_list *ctrlist`` + Controller list to modify attachment state of nsid + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_fw_download (nvme_mi_ctrl_t ctrl, struct nvme_fw_download_args *args) + + Download part or all of a firmware image to the controller + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send firmware data to + +``struct nvme_fw_download_args *args`` + :c:type:`struct nvme_fw_download_args <nvme_fw_download_args>` argument structure + +**Description** + +The Firmware Image Download command downloads all or a portion of an image +for a future update to the controller. The Firmware Image Download command +downloads a new image (in whole or in part) to the controller. + +The image may be constructed of multiple pieces that are individually +downloaded with separate Firmware Image Download commands. Each Firmware +Image Download command includes a Dword Offset and Number of Dwords that +specify a dword range. + +The new firmware image is not activated as part of the Firmware Image +Download command. Use the nvme_mi_admin_fw_commit() to activate a newly +downloaded image. + +**Return** + 0 on success, non-zero on failure +.. c:function:: int nvme_mi_admin_fw_commit (nvme_mi_ctrl_t ctrl, struct nvme_fw_commit_args *args) + + Commit firmware using the specified action + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send firmware data to + +``struct nvme_fw_commit_args *args`` + :c:type:`struct nvme_fw_download_args <nvme_fw_download_args>` argument structure + +**Description** + +The Firmware Commit command modifies the firmware image or Boot Partitions. + +**Return** + +0 on success, non-zero on failure + + +.. c:function:: int nvme_mi_admin_format_nvm (nvme_mi_ctrl_t ctrl, struct nvme_format_nvm_args *args) + + Format NVMe namespace + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``struct nvme_format_nvm_args *args`` + Format NVM command arguments + +**Description** + +Perform a low-level format to set the LBA data & metadata size. May destroy +data & metadata on the specified namespaces + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + +.. c:function:: int nvme_mi_admin_sanitize_nvm (nvme_mi_ctrl_t ctrl, struct nvme_sanitize_nvm_args *args) + + Start a subsystem Sanitize operation + +**Parameters** + +``nvme_mi_ctrl_t ctrl`` + Controller to send command to + +``struct nvme_sanitize_nvm_args *args`` + Sanitize command arguments + +**Description** + +A sanitize operation alters all user data in the NVM subsystem such that +recovery of any previous user data from any cache, the non-volatile media, +or any Controller Memory Buffer is not possible. + +The Sanitize command starts a sanitize operation or to recover from a +previously failed sanitize operation. The sanitize operation types that may +be supported are Block Erase, Crypto Erase, and Overwrite. All sanitize +operations are processed in the background, i.e., completion of the sanitize +command does not indicate completion of the sanitize operation. + +**Return** + +The nvme command status if a response was received (see +:c:type:`enum nvme_status_field <nvme_status_field>`) or -1 with errno set otherwise. + + |