@@ -160,6 +160,130 @@ int pldm_file_io_read_file(uint32_t file_handle, uint32_t file_length,
return read_file_req(file_handle, file_length, buf, offset, size);
}
+/*
+ * Send/receive a PLDM WriteFile request message.
+ */
+static int write_file_req(uint32_t file_handle, const void *buf,
+ uint32_t offset, uint64_t size)
+{
+ void *response_msg, *current_ptr, *payload_data;
+ uint32_t total_write, resp_length, request_length;
+ size_t response_len, payload_len;
+ uint8_t completion_code;
+ int num_transfers;
+ char *request_msg;
+ int rc, i;
+
+ struct pldm_write_file_req file_req = {
+ .file_handle = file_handle,
+ .offset = offset,
+ .length = size
+ };
+
+ if (!size)
+ return OPAL_PARAMETER;
+
+ if ((offset) && (offset > size))
+ return OPAL_PARAMETER;
+
+ request_length = sizeof(struct pldm_msg_hdr) +
+ sizeof(struct pldm_write_file_req) +
+ size;
+ request_msg = malloc(request_length);
+
+ payload_data = ((struct pldm_msg *)request_msg)->payload
+ + sizeof(file_req.file_handle)
+ + sizeof(file_req.offset)
+ + sizeof(file_req.length);
+ memcpy(payload_data, buf, size);
+ current_ptr = payload_data;
+ num_transfers = 1;
+ total_write = 0;
+
+ if (size > MAX_TRANSFER_SIZE_BYTES) {
+ num_transfers = (size + MAX_TRANSFER_SIZE_BYTES - 1) /
+ MAX_TRANSFER_SIZE_BYTES;
+ file_req.length = MAX_TRANSFER_SIZE_BYTES;
+ }
+
+ prlog(PR_TRACE, "%s - file_handle: %d, offset: 0x%x, size: 0x%x, num_transfers: %d\n",
+ __func__, file_handle, file_req.offset,
+ file_req.length, num_transfers);
+
+ for (i = 0; i < num_transfers; i++) {
+ file_req.offset = offset + (i * MAX_TRANSFER_SIZE_BYTES);
+
+ /* Encode the file request */
+ rc = encode_write_file_req(
+ DEFAULT_INSTANCE_ID,
+ file_req.file_handle,
+ file_req.offset,
+ file_req.length,
+ (struct pldm_msg *)request_msg);
+ if (rc != PLDM_SUCCESS) {
+ prlog(PR_ERR, "Encode WriteFileReq Error (rc: %d)\n",
+ rc);
+ free(request_msg);
+ return OPAL_PARAMETER;
+ }
+
+ /* Send and get the response message bytes */
+ rc = pldm_do_request(BMC_EID, request_msg,
+ request_length - 1,
+ &response_msg, &response_len);
+ if (rc) {
+ prlog(PR_ERR, "PLDM: Communication Error (req:"
+ "WriteFileReq, rc: %d)\n", rc);
+ free(request_msg);
+ return OPAL_PARAMETER;
+ }
+
+ /* Decode the message */
+ payload_len = response_len - sizeof(struct pldm_msg_hdr);
+ rc = decode_write_file_resp(
+ response_msg,
+ payload_len,
+ &completion_code,
+ &resp_length);
+ if (rc != PLDM_SUCCESS || completion_code != PLDM_SUCCESS) {
+ prlog(PR_ERR, "Decode WriteFileResp Error (rc: %d, cc: %d)\n",
+ rc, completion_code);
+ free(request_msg);
+ return OPAL_PARAMETER;
+ }
+
+ if (resp_length == 0) {
+ free(response_msg);
+ break;
+ }
+
+ total_write += resp_length;
+ current_ptr += resp_length;
+ free(response_msg);
+
+ if (total_write == size)
+ break;
+ else if (resp_length != file_req.length) {
+ /* end of file */
+ break;
+ } else if (MAX_TRANSFER_SIZE_BYTES > (size - total_write))
+ file_req.length = size - total_write;
+ }
+
+ free(request_msg);
+
+ return OPAL_SUCCESS;
+}
+
+int pldm_file_io_write_file(uint32_t file_handle, const void *buf,
+ uint32_t offset, uint64_t size)
+{
+ if (!file_io_ready)
+ return OPAL_PARAMETER;
+
+ return write_file_req(file_handle, buf, offset, size);
+}
+
/*
* Send/receive a PLDM GetFileTable request message.
* The file table contains the list of files available and
@@ -51,6 +51,8 @@ int pldm_mctp_responder_init(void);
/* Requester support */
int pldm_file_io_read_file(uint32_t file_handle, uint32_t file_length,
void *buf, uint32_t offset, uint64_t size);
+int pldm_file_io_write_file(uint32_t file_handle, const void *buf,
+ uint32_t offset, uint64_t size);
int pldm_file_io_init(void);
int pldm_fru_get_record_by_option(uint16_t fru_table_handle,
Send/receive a PLDM WriteFile request message. Due to maximum transfer size for PLDM protocol, we have to send several write requests, if necessary. Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> --- core/pldm/pldm-file-io-requests.c | 124 ++++++++++++++++++++++++++++++ core/pldm/pldm.h | 2 + 2 files changed, 126 insertions(+)