@@ -625,6 +625,89 @@ static struct pldm_cmd pldm_platform_event_message = {
.handler = platform_event_message,
};
+/*
+ * GetStateSensorReadings (0x21)
+ * The GetStateSensorReadings command can return readings for multiple
+ * state sensors (a PLDM State Sensor that returns more than one set of
+ * state information is called a composite state sensor).
+ */
+static int platform_get_state_sensor_readings(const struct pldm_rx_data *rx)
+{
+ bitfield8_t sensor_rearm;
+ struct pldm_tx_data *tx;
+ uint16_t sensor_id;
+ uint8_t reserved;
+ size_t data_size;
+ int rc;
+
+ get_sensor_state_field sensor_state = {
+ .sensor_op_state = PLDM_SENSOR_UNKNOWN,
+ .present_state = 0,
+ .previous_state = 0,
+ .event_state = 0
+ };
+
+ /* decode GetStateSensorReadings request data */
+ rc = decode_get_state_sensor_readings_req(
+ rx->msg,
+ PLDM_GET_STATE_SENSOR_READINGS_REQ_BYTES,
+ &sensor_id,
+ &sensor_rearm,
+ &reserved);
+ if (rc) {
+ prlog(PR_ERR, "Failed to decode GetStateSensorReadings request, rc = %d\n", rc);
+ cc_resp(rx, rx->hdrinf.pldm_type,
+ rx->hdrinf.command, PLDM_ERROR);
+ return OPAL_INTERNAL_ERROR;
+ }
+
+ prlog(PR_DEBUG, "%s - sensor_id: %d, sensor_rearm: %x\n",
+ __func__, sensor_id, sensor_rearm.byte);
+
+ /* send state sensor reading response */
+ data_size = sizeof(struct pldm_msg_hdr) +
+ sizeof(struct pldm_get_state_sensor_readings_resp) +
+ (sizeof(get_sensor_state_field) * 1);
+
+ tx = zalloc(sizeof(struct pldm_tx_data) + data_size);
+ if (!tx)
+ return OPAL_NO_MEM;
+ tx->data_size = data_size;
+ tx->tag_owner = true;
+ tx->msg_tag = rx->msg_tag;
+
+ rc = encode_get_state_sensor_readings_resp(
+ rx->hdrinf.instance,
+ PLDM_SUCCESS,
+ 1, /* sensor count of 1 */
+ &sensor_state,
+ (struct pldm_msg *)tx->data);
+ if (rc != PLDM_SUCCESS) {
+ prlog(PR_ERR, "Encode GetStateSensorReadings response Error, rc: %d\n", rc);
+ cc_resp(rx, rx->hdrinf.pldm_type,
+ rx->hdrinf.command, PLDM_ERROR);
+ free(tx);
+ return OPAL_PARAMETER;
+ }
+
+ /* send PLDM message over MCTP */
+ rc = pldm_mctp_message_tx(tx);
+ if (rc) {
+ prlog(PR_ERR, "Failed to send GetStateSensorReadings response, rc = %d\n", rc);
+ free(tx);
+ return OPAL_HARDWARE;
+ }
+
+ free(tx);
+ return OPAL_SUCCESS;
+}
+
+static struct pldm_cmd pldm_platform_get_state_sensor_readings = {
+ .name = "PLDM_GET_STATE_SENSOR_READINGS",
+ .pldm_cmd_id = PLDM_GET_STATE_SENSOR_READINGS,
+ .handler = platform_get_state_sensor_readings,
+};
+
int pldm_responder_handle_request(struct pldm_rx_data *rx)
{
const struct pldm_type *type;
@@ -669,6 +752,7 @@ int pldm_responder_init(void)
add_type(&pldm_platform_type);
add_cmd(&pldm_platform_type, &pldm_platform_set_event_receiver);
add_cmd(&pldm_platform_type, &pldm_platform_event_message);
+ add_cmd(&pldm_platform_type, &pldm_platform_get_state_sensor_readings);
return OPAL_SUCCESS;
}
The GetStateSensorReadings command can return readings for multiple state sensors (a PLDM State Sensor that returns more than one set of state information is called a composite state sensor). The Event Receiver acknowledges receiving the PLDM Event Message in the response to this command. Signed-off-by: Christophe Lombard <clombard@linux.ibm.com> --- core/pldm/pldm-responder.c | 84 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+)