diff options
| -rw-r--r-- | core/pldm/pldm-fru-requests.c | 58 | ||||
| -rw-r--r-- | core/pldm/pldm-responder.c | 96 | ||||
| -rw-r--r-- | core/pldm/pldm.h | 3 |
3 files changed, 157 insertions, 0 deletions
diff --git a/core/pldm/pldm-fru-requests.c b/core/pldm/pldm-fru-requests.c index ab517e9..fa4764b 100644 --- a/core/pldm/pldm-fru-requests.c +++ b/core/pldm/pldm-fru-requests.c @@ -14,6 +14,9 @@ static void *fru_record_table; static size_t fru_record_length; +static void *local_fru_record_table; +static size_t local_fru_table_length; + static bool fru_ready; static char *bmc_version; @@ -211,6 +214,61 @@ out: return rc; } +#define RECORD_SET_ID 100 + +void pldm_fru_set_local_table(uint32_t *table_length, + uint16_t *total_record_set_identifiers, + uint16_t *total_table_records) +{ + struct pldm_fru_record_data_format *record; + struct pldm_fru_record_tlv *fru_tlv; + size_t fru_table_size, record_size; + char fru_product[] = "IBM, skiboot"; + + if (local_fru_record_table) { + *table_length = local_fru_table_length; + *total_record_set_identifiers = 1; + *total_table_records = 1; + return; + } + + /* allocate fru table */ + fru_table_size = sizeof(struct pldm_fru_record_data_format) + + sizeof(struct pldm_fru_record_tlv) + + strlen(fru_product); + local_fru_record_table = zalloc(fru_table_size); + if (!local_fru_record_table) { + prlog(PR_ERR, "%s: failed to allocate fru record table\n", + __func__); + return; + } + + /* fill fru record data */ + record = (struct pldm_fru_record_data_format *)local_fru_record_table; + record->record_set_id = htole16(RECORD_SET_ID); + record->record_type = PLDM_FRU_RECORD_TYPE_GENERAL; + record->num_fru_fields = 1; + record->encoding_type = PLDM_FRU_ENCODING_ASCII; + + /* to start, set the size as the start of the TLV structs */ + record_size = offsetof(struct pldm_fru_record_data_format, tlvs); + + /* TLVs data */ + fru_tlv = (struct pldm_fru_record_tlv *)(local_fru_record_table + record_size); + fru_tlv->type = PLDM_FRU_FIELD_TYPE_OTHER; + fru_tlv->length = strlen(fru_product); + memcpy(fru_tlv->value, fru_product, fru_tlv->length); + + /* increment record_size by total size of this TLV */ + record_size += (offsetof(struct pldm_fru_record_tlv, value) + fru_tlv->length); + + *table_length = record_size; + *total_record_set_identifiers = 1; + *total_table_records = 1; + + local_fru_table_length = *table_length; +} + int pldm_fru_init(void) { int rc; diff --git a/core/pldm/pldm-responder.c b/core/pldm/pldm-responder.c index 3eba2e9..3ab813f 100644 --- a/core/pldm/pldm-responder.c +++ b/core/pldm/pldm-responder.c @@ -10,6 +10,7 @@ #include <stdio.h> #include <string.h> #include <debug_descriptor.h> +#include <libpldm/fru.h> #include <libpldm/platform.h> #include <libpldm/platform_oem_ibm.h> #include <libpldm/state_set.h> @@ -946,6 +947,97 @@ static struct pldm_cmd pldm_platform_get_pdr = { .handler = platform_get_pdr_handle, }; +/* + * PLDM Fru commands support + */ +static struct pldm_type pldm_fru_type = { + .name = "fru", + .pldm_type_id = PLDM_FRU, +}; + +/* currently we support version 1.0 of fru table */ +#define SUPPORTED_FRU_VERSION_MAJOR 1 +#define SUPPORTED_FRU_VERSION_MINOR 0 + +/* Used by the metadata request handler for the value of + * FRUTableMaximumSize + * 0 means SetFRURecordTable command is not supported (see DSP 0257 + * v1.0.0 Table 9) + */ +#define FRU_TABLE_MAX_SIZE_UNSUPPORTED 0 + +/* + * GetFRURecordTableMetadata (0X01) + * The GetFRURecordTableMetadata command is used to get the FRU Record + * Table metadata information that includes the FRU Record major + * version, the FRU Record minor version, the size of the largest FRU + * Record data, total length of the FRU Record Table, total number of + * FRU Record Data structures, and the integrity checksum on the FRU + * Record Table data. + */ +static int fru_get_record_table_metadata_handler(const struct pldm_rx_data *rx) +{ + size_t data_size = PLDM_MSG_SIZE(struct pldm_get_fru_record_table_metadata_resp); + uint16_t total_record_set_identifiers, total_table_records; + uint32_t fru_table_length; + struct pldm_tx_data *tx; + int rc; + + /* + * GetFRURecordTableMetadata requests + * don't have any payload, so no need to decode them + */ + + /* add specific fru record */ + pldm_fru_set_local_table(&fru_table_length, + &total_record_set_identifiers, + &total_table_records); + + /* create a PLDM response message for GetFRURecordTableMetadata */ + 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_fru_record_table_metadata_resp( + rx->hdrinf.instance, + PLDM_SUCCESS, + SUPPORTED_FRU_VERSION_MAJOR, + SUPPORTED_FRU_VERSION_MINOR, + FRU_TABLE_MAX_SIZE_UNSUPPORTED, + fru_table_length, + total_record_set_identifiers, + total_table_records, + 0, // checksum, not calculated + (struct pldm_msg *)tx->data); + if (rc != PLDM_SUCCESS) { + prlog(PR_ERR, "Encode GetFRURecordTableMetadata 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 GetFRURecordTableMetadata response, rc = %d\n", rc); + free(tx); + return OPAL_HARDWARE; + } + + free(tx); + return OPAL_SUCCESS; +} + +static struct pldm_cmd pldm_fru_get_record_table_metadata = { + .name = "PLDM_GET_FRU_RECORD_TABLE_METADATA", + .pldm_cmd_id = PLDM_GET_FRU_RECORD_TABLE_METADATA, + .handler = fru_get_record_table_metadata_handler, +}; + int pldm_responder_handle_request(struct pldm_rx_data *rx) { const struct pldm_type *type; @@ -994,5 +1086,9 @@ int pldm_responder_init(void) add_cmd(&pldm_platform_type, &pldm_platform_set_state_effecter_states); add_cmd(&pldm_platform_type, &pldm_platform_get_pdr); + /* Register fru commands we'll respond to - DSP0257 */ + add_type(&pldm_fru_type); + add_cmd(&pldm_fru_type, &pldm_fru_get_record_table_metadata); + return OPAL_SUCCESS; } diff --git a/core/pldm/pldm.h b/core/pldm/pldm.h index df38ce5..bc87824 100644 --- a/core/pldm/pldm.h +++ b/core/pldm/pldm.h @@ -80,6 +80,9 @@ int pldm_file_io_write_file(uint32_t file_handle, uint32_t pos, int pldm_file_io_init(void); int pldm_fru_get_bmc_version(void *bv, int len); +void pldm_fru_set_local_table(uint32_t *table_length, + uint16_t *total_record_set_identifiers, + uint16_t *total_table_records); int pldm_fru_init(void); int pldm_bios_find_lid_by_attr_name(const char *name, char **lid); |