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eth: fbnic: Accept minimum anti-rollback version from firmware

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fbnic supports applying firmware which may not be rolled back. This is
implemented in firmware however it is useful for the driver to know the
minimum supported firmware version. This will enable the driver validate
new firmware before it is sent to the NIC. If it is too old the driver can
provide a clear message that the version is too old.

Signed-off-by: Lee Trager <lee@trager.us>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250512190109.2475614-3-lee@trager.us
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Lee Trager
2025-05-12 11:53:58 -07:00
committed by Paolo Abeni
parent e505e14073
commit bb7e124e30
2 changed files with 6 additions and 0 deletions
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4
drivers/net/ethernet/meta/fbnic/fbnic_fw.c
View File

@@ -464,6 +464,7 @@ static const struct fbnic_tlv_index fbnic_fw_cap_resp_index[] = {
FBNIC_TLV_ATTR_U32(FBNIC_FW_CAP_RESP_UEFI_VERSION),
FBNIC_TLV_ATTR_STRING(FBNIC_FW_CAP_RESP_UEFI_COMMIT_STR,
FBNIC_FW_CAP_RESP_COMMIT_MAX_SIZE),
FBNIC_TLV_ATTR_U32(FBNIC_FW_CAP_RESP_ANTI_ROLLBACK_VERSION),
FBNIC_TLV_ATTR_LAST
};
@@ -586,6 +587,9 @@ static int fbnic_fw_parse_cap_resp(void *opaque, struct fbnic_tlv_msg **results)
if (results[FBNIC_FW_CAP_RESP_BMC_ALL_MULTI] || !bmc_present)
fbd->fw_cap.all_multi = all_multi;
fbd->fw_cap.anti_rollback_version =
fta_get_uint(results, FBNIC_FW_CAP_RESP_ANTI_ROLLBACK_VERSION);
return 0;
}

2
drivers/net/ethernet/meta/fbnic/fbnic_fw.h
View File

@@ -42,6 +42,7 @@ struct fbnic_fw_cap {
u8 all_multi : 1;
u8 link_speed;
u8 link_fec;
u32 anti_rollback_version;
};
struct fbnic_fw_completion {
@@ -122,6 +123,7 @@ enum {
FBNIC_FW_CAP_RESP_STORED_CMRT_COMMIT_STR = 0x10,
FBNIC_FW_CAP_RESP_UEFI_VERSION = 0x11,
FBNIC_FW_CAP_RESP_UEFI_COMMIT_STR = 0x12,
FBNIC_FW_CAP_RESP_ANTI_ROLLBACK_VERSION = 0x15,
FBNIC_FW_CAP_RESP_MSG_MAX
};