diff options
| -rw-r--r-- | core/pldm/pldm-responder.c | 60 | ||||
| -rw-r--r-- | include/ast.h | 8 |
2 files changed, 68 insertions, 0 deletions
diff --git a/core/pldm/pldm-responder.c b/core/pldm/pldm-responder.c index 74376f1..061b5c3 100644 --- a/core/pldm/pldm-responder.c +++ b/core/pldm/pldm-responder.c @@ -105,6 +105,17 @@ static void add_type(struct pldm_type *new_type) new_type->name, new_type->pldm_type_id); } +static void add_cmd(struct pldm_type *type, struct pldm_cmd *new_cmd) +{ + assert(new_cmd->pldm_cmd_id < 256); /* limited by GetPLDMCommands */ + assert(new_cmd->handler); + assert(!find_cmd(type, new_cmd->pldm_cmd_id)); + + list_add_tail(&type->commands, &new_cmd->link); + prlog(PR_DEBUG, "Registered command %s (%d) under %s\n", + new_cmd->name, new_cmd->pldm_cmd_id, type->name); +} + /* * PLDM Base commands support */ @@ -114,6 +125,54 @@ static struct pldm_type pldm_base_type = { .version = { 0xF1, 0xF0, 0xF0, 0x00 }, }; +/* + * GetTID command (0x02) + * The GetTID command is used to retrieve the present Terminus ID (TID) + * setting for a PLDM Terminus. + */ +static int base_get_tid_handler(const struct pldm_rx_data *rx) +{ + size_t data_size = PLDM_MSG_SIZE(struct pldm_get_tid_resp); + struct pldm_tx_data *tx; + int rc; + + /* create a PLDM response message for GetTID */ + 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_tid_resp(rx->hdrinf.instance, + PLDM_SUCCESS, + HOST_TID, + (struct pldm_msg *)tx->data); + if (rc != PLDM_SUCCESS) { + prlog(PR_ERR, "Encode GetTID Error, rc: %d\n", rc); + cc_resp(rx, rx->hdrinf.pldm_type, + rx->hdrinf.command, PLDM_ERROR); + free(tx); + return OPAL_PARAMETER; + } + + rc = pldm_mctp_message_tx(tx); + if (rc) { + prlog(PR_ERR, "Failed to send GetTID response, rc = %d\n", rc); + free(tx); + return OPAL_HARDWARE; + } + + free(tx); + return OPAL_SUCCESS; +} + +static struct pldm_cmd pldm_base_get_tid = { + .name = "PLDM_GET_TID", + .pldm_cmd_id = PLDM_GET_TID, + .handler = base_get_tid_handler, +}; + int pldm_responder_handle_request(struct pldm_rx_data *rx) { const struct pldm_type *type; @@ -149,6 +208,7 @@ int pldm_responder_init(void) { /* Register mandatory commands we'll respond to - DSP0240 */ add_type(&pldm_base_type); + add_cmd(&pldm_base_type, &pldm_base_get_tid); return OPAL_SUCCESS; } diff --git a/include/ast.h b/include/ast.h index 79efe4f..71237fb 100644 --- a/include/ast.h +++ b/include/ast.h @@ -101,6 +101,14 @@ void ast_setup_sio_mbox(uint16_t io_base, uint8_t irq); #define BMC_EID 8 #define HOST_EID 9 +/* + * Skiboot's PLDM Terminus ID. + * BMC TID is 1, HB is 2, Skiboot is 3. + */ +#define BMC_TID 1 +#define HB_TID 2 +#define HOST_TID 3 + enum mctp_msg_type { MCTP_MSG_TYPE_CONTROL = 0x00, MCTP_MSG_TYPE_PLDM = 0x01, |