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net: ethtool: Allow write mechanism of LPL and both LPL and EPL

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CMIS 5.2 standard section 9.4.2 defines four types of firmware update
supported mechanism: None, only LPL, only EPL, both LPL and EPL.

Currently, only LPL (Local Payload) type of write firmware block is
supported. However, if the module supports both LPL and EPL the flashing
process wrongly fails for no supporting LPL.

Fix that, by allowing the write mechanism to be LPL or both LPL and
EPL.

Fixes: c4f78134d4 ("ethtool: cmis_fw_update: add a layer for supporting firmware update using CDB")
Reported-by: Vladyslav Mykhaliuk <vmykhaliuk@nvidia.com>
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/20240812140824.3718826-1-danieller@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Danielle Ratson 2024-08-12 17:08:24 +03:00 committed by Paolo Abeni
parent 69139d2919
commit fde25c20f5
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
net/ethtool/cmis_fw_update.c
View File

@ -35,7 +35,10 @@ struct cmis_cdb_fw_mng_features_rpl {
__be16 resv7;
};
#define CMIS_CDB_FW_WRITE_MECHANISM_LPL 0x01
enum cmis_cdb_fw_write_mechanism {
CMIS_CDB_FW_WRITE_MECHANISM_LPL = 0x01,
CMIS_CDB_FW_WRITE_MECHANISM_BOTH = 0x11,
};
static int
cmis_fw_update_fw_mng_features_get(struct ethtool_cmis_cdb *cdb,
@ -64,7 +67,8 @@ cmis_fw_update_fw_mng_features_get(struct ethtool_cmis_cdb *cdb,
}
rpl = (struct cmis_cdb_fw_mng_features_rpl *)args.req.payload;
if (!(rpl->write_mechanism == CMIS_CDB_FW_WRITE_MECHANISM_LPL)) {
if (!(rpl->write_mechanism == CMIS_CDB_FW_WRITE_MECHANISM_LPL ||
rpl->write_mechanism == CMIS_CDB_FW_WRITE_MECHANISM_BOTH)) {
ethnl_module_fw_flash_ntf_err(dev, ntf_params,
"Write LPL is not supported",
NULL);