From 2af83292b3e14b33d8587c711fe61a08fbe1652a Mon Sep 17 00:00:00 2001 From: Christophe Lombard Date: Tue, 29 Aug 2023 11:24:01 +0200 Subject: core/pldm: Encode PLDM PDR Repository Change eventData Encode the platform PDR repository change event message request that tells the BMC that a specific PDR entry has changed. Signed-off-by: Christophe Lombard Signed-off-by: Reza Arbab --- core/pldm/pldm-platform-requests.c | 124 +++++++++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+) diff --git a/core/pldm/pldm-platform-requests.c b/core/pldm/pldm-platform-requests.c index eeb2028..1338730 100644 --- a/core/pldm/pldm-platform-requests.c +++ b/core/pldm/pldm-platform-requests.c @@ -260,6 +260,130 @@ int pldm_platform_restart(void) return set_state_effecter_states_req(effecter_id, &field, true); } +static int send_repository_changed_event(uint32_t num_changed_pdrs, + uint32_t *record_handle) +{ + size_t actual_change_records_size = 0; + uint8_t number_of_change_entries[1]; + size_t max_change_records_size = 0; + size_t response_len, payload_len; + uint8_t event_data_operation[1]; + uint32_t *change_entries[1]; + uint8_t *event_data = NULL; + struct pldm_tx_data *tx; + void *response_msg; + size_t data_size; + int rc, i; + + struct pldm_platform_event_message_req event_message_req = { + .format_version = PLDM_PLATFORM_EVENT_MESSAGE_FORMAT_VERSION, + .tid = HOST_TID, + .event_class = PLDM_PDR_REPOSITORY_CHG_EVENT, + }; + + struct pldm_platform_event_message_resp response; + + prlog(PR_DEBUG, "%s - num_changed_pdrs: %d\n", __func__, num_changed_pdrs); + + if (num_changed_pdrs == 0) + return OPAL_PARAMETER; + + /* encode the platform change event data */ + event_data_operation[0] = PLDM_RECORDS_ADDED; + number_of_change_entries[0] = num_changed_pdrs; + change_entries[0] = record_handle; + + /* + * The first time around this loop, event_data is nullptr which + * instructs the encoder to not actually do the encoding, but + * rather fill out actual_change_records_size with the correct + * size, stop and return PLDM_SUCCESS. Then we allocate the + * proper amount of memory and call the encoder again, which + * will cause it to actually encode the message. + */ + for (i = 0; i < 2; i++) { + rc = encode_pldm_pdr_repository_chg_event_data( + FORMAT_IS_PDR_HANDLES, + 1, /* only one change record (RECORDS_ADDED) */ + event_data_operation, + number_of_change_entries, + (const uint32_t * const*)change_entries, + (struct pldm_pdr_repository_chg_event_data *)event_data, + &actual_change_records_size, + max_change_records_size); + if (rc) { + prlog(PR_ERR, "Encode PldmPdrRepositoryChgEventData Error, rc: %d\n", rc); + return OPAL_PARAMETER; + } + + if (event_data == NULL) { + max_change_records_size = actual_change_records_size; + event_data = zalloc(max_change_records_size); + if (!event_data) { + prlog(PR_ERR, "failed to allocate event data (size: 0x%lx)\n", max_change_records_size); + return OPAL_NO_MEM; + } + } + } + + /* Send the event request */ + payload_len = PLDM_PLATFORM_EVENT_MESSAGE_MIN_REQ_BYTES + max_change_records_size; + + data_size = sizeof(struct pldm_msg_hdr) + + sizeof(struct pldm_platform_event_message_req) + + max_change_records_size; + tx = zalloc(sizeof(struct pldm_tx_data) + data_size); + if (!tx) + return OPAL_NO_MEM; + tx->data_size = data_size - 1; + + /* Encode the platform event message request */ + rc = encode_platform_event_message_req( + DEFAULT_INSTANCE_ID, + event_message_req.format_version, + event_message_req.tid, + event_message_req.event_class, + (const uint8_t *)event_data, + max_change_records_size, + (struct pldm_msg *)tx->data, + payload_len); + if (rc != PLDM_SUCCESS) { + prlog(PR_ERR, "Encode PlatformEventMessage Error, rc: %d\n", rc); + free(event_data); + free(tx); + return OPAL_PARAMETER; + } + free(event_data); + + /* Send and get the response message bytes */ + rc = pldm_requester_queue_and_wait(tx, &response_msg, &response_len); + if (rc) { + prlog(PR_ERR, "Communication Error, req: PlatformEventMessage, rc: %d\n", rc); + free(tx); + return rc; + } + free(tx); + + /* Decode the message */ + payload_len = response_len - sizeof(struct pldm_msg_hdr); + rc = decode_platform_event_message_resp( + response_msg, + payload_len, + &response.completion_code, + &response.platform_event_status); + if (rc != PLDM_SUCCESS || response.completion_code != PLDM_SUCCESS) { + prlog(PR_ERR, "Decode PlatformEventMessage Error, rc: %d, cc: %d, pes: %d\n", + rc, response.completion_code, + response.platform_event_status); + free(response_msg); + return OPAL_PARAMETER; + } + + free(response_msg); + + return OPAL_SUCCESS; +} + struct get_pdr_response { uint8_t completion_code; uint32_t next_record_hndl; -- cgit v1.1