1 // SPDX-License-Identifier: GPL-2.0-only
34 	if (fw->size < header_end)  in efx_reflash_parse_reflash_header()
37 	header = fw->data + header_offset;  in efx_reflash_parse_reflash_header()
53 	if (fw->size < trailer_end)  in efx_reflash_parse_reflash_header()
56 	trailer = fw->data + trailer_offset;  in efx_reflash_parse_reflash_header()
69 		*data = fw->data;  in efx_reflash_parse_reflash_header()
70 		*data_size = fw->size;  in efx_reflash_parse_reflash_header()
100 		rc = -EINVAL;  in efx_reflash_partition_type()
119 	    fw->size < header_end)  in efx_reflash_parse_snic_header()
122 	header = fw->data + header_offset;  in efx_reflash_parse_snic_header()
136 	    fw->size < payload_end)  in efx_reflash_parse_snic_header()
146 			header_len + payload_size - EFX_SNICIMAGE_HEADER_CRC_OFST -  in efx_reflash_parse_snic_header()
155 	*data = fw->data;  in efx_reflash_parse_snic_header()
156 	*data_size = fw->size;  in efx_reflash_parse_snic_header()
175 	if (fw->size < header_end)  in efx_reflash_parse_snic_bundle_header()
178 	header = fw->data + header_offset;  in efx_reflash_parse_snic_bundle_header()
202 	*data = fw->data;  in efx_reflash_parse_snic_bundle_header()
203 	*data_size = fw->size;  in efx_reflash_parse_snic_bundle_header()
221 	 * prepend a header for which finding the size is a non-trivial  in efx_reflash_parse_firmware_data()
235 	for (header_offset = 0; header_offset < fw->size; header_offset++) {  in efx_reflash_parse_firmware_data()
255 	return -EINVAL;  in efx_reflash_parse_firmware_data()
258 /* Limit the number of status updates during the erase or write phases */
264 /* Ideal erase chunk size.  This is a balance between minimising the number of
265  * MCDI requests to erase an entire partition whilst avoiding tripping the MCDI
279 	/* Partitions that cannot be erased or do not require erase before  in efx_reflash_erase_partition()
280 	 * write are advertised with a erase alignment/sector size of zero.  in efx_reflash_erase_partition()
287 		return -EINVAL;  in efx_reflash_erase_partition()
289 	/* Erase the entire NVRAM partition a chunk at a time to avoid  in efx_reflash_erase_partition()
305 		chunk = min_t(size_t, partition_size - offset, chunk);  in efx_reflash_erase_partition()
309 					       "Erase failed for NVRAM partition %#x at %#zx-%#zx",  in efx_reflash_erase_partition()
310 					       type, offset, offset + chunk - 1);  in efx_reflash_erase_partition()
331 		return -EINVAL;  in efx_reflash_write_partition()
337 	if (efx->type->mcdi_max_ver < 2)  in efx_reflash_write_partition()
356 					       "Write failed for NVRAM partition %#x at %#zx-%#zx",  in efx_reflash_write_partition()
357 					       type, offset, offset + chunk - 1);  in efx_reflash_write_partition()
364 		size_t remaining = data_size - offset;  in efx_reflash_write_partition()
375 			return -ENOMEM;  in efx_reflash_write_partition()
378 		memset(buf + remaining, 0xFF, chunk - remaining);  in efx_reflash_write_partition()
383 					       "Write failed for NVRAM partition %#x at %#zx-%#zx",  in efx_reflash_write_partition()
384 					       type, offset, offset + chunk - 1);  in efx_reflash_write_partition()
398 	size_t data_size, size, erase_align, write_align;  in efx_reflash_flash_firmware()  local
399 	struct devlink *devlink = efx->devlink;  in efx_reflash_flash_firmware()
407 		return -EOPNOTSUPP;  in efx_reflash_flash_firmware()
410 	mutex_lock(&efx->reflash_mutex);  in efx_reflash_flash_firmware()
414 	if (efx->type->flash_auto_partition) {  in efx_reflash_flash_firmware()
419 		data = fw->data;  in efx_reflash_flash_firmware()
420 		data_size = fw->size;  in efx_reflash_flash_firmware()
441 			rc = -EINVAL;  in efx_reflash_flash_firmware()
446 	rc = efx_mcdi_nvram_info(efx, type, &size, &erase_align, &write_align,  in efx_reflash_flash_firmware()
459 		rc = -EPERM;  in efx_reflash_flash_firmware()
467 		rc = -EACCES;  in efx_reflash_flash_firmware()
471 	if (erase_align != 0 && size % erase_align) {  in efx_reflash_flash_firmware()
473 				       "NVRAM partition %#x has a bad partition table entry, can't erase it",  in efx_reflash_flash_firmware()
475 		rc = -EACCES;  in efx_reflash_flash_firmware()
479 	if (data_size > size) {  in efx_reflash_flash_firmware()
483 		rc = -EFBIG;  in efx_reflash_flash_firmware()
497 	rc = efx_reflash_erase_partition(efx, extack, devlink, type, size,  in efx_reflash_flash_firmware()
517 	mutex_unlock(&efx->reflash_mutex);  in efx_reflash_flash_firmware()