eth: fbnic: Add devlink firmware version info

This adds support to show firmware version information for both stored and
running firmware versions. The version and commit is displayed separately
to aid monitoring tools which only care about the version.

Example output:
  # devlink dev info
  pci/0000:01:00.0:
    driver fbnic
    serial_number 88-25-08-ff-ff-01-50-92
    versions:
        running:
          fw 24.07.15-017
          fw.commit h999784ae9df0
          fw.bootloader 24.07.10-000
          fw.bootloader.commit hfef3ac835ce7
        stored:
          fw 24.07.24-002
          fw.commit hc9d14a68b3f2
          fw.bootloader 24.07.22-000
          fw.bootloader.commit h922f8493eb96
          fw.undi 01.00.03-000

Signed-off-by: Lee Trager <lee@trager.us>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20240905233820.1713043-1-lee@trager.us
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

1 files changed, 75 insertions, 0 deletions

diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_devlink.c b/drivers/net/ethernet/meta/fbnic/fbnic_devlink.c
index e87049dfd223..ef05ae8f5039 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_devlink.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_devlink.c
@@ -10,6 +10,56 @@
 
 #define FBNIC_SN_STR_LEN	24
 
+static int fbnic_version_running_put(struct devlink_info_req *req,
+				     struct fbnic_fw_ver *fw_ver,
+				     char *ver_name)
+{
+	char running_ver[FBNIC_FW_VER_MAX_SIZE];
+	int err;
+
+	fbnic_mk_fw_ver_str(fw_ver->version, running_ver);
+	err = devlink_info_version_running_put(req, ver_name, running_ver);
+	if (err)
+		return err;
+
+	if (strlen(fw_ver->commit) > 0) {
+		char commit_name[FBNIC_SN_STR_LEN];
+
+		snprintf(commit_name, FBNIC_SN_STR_LEN, "%s.commit", ver_name);
+		err = devlink_info_version_running_put(req, commit_name,
+						       fw_ver->commit);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+static int fbnic_version_stored_put(struct devlink_info_req *req,
+				    struct fbnic_fw_ver *fw_ver,
+				    char *ver_name)
+{
+	char stored_ver[FBNIC_FW_VER_MAX_SIZE];
+	int err;
+
+	fbnic_mk_fw_ver_str(fw_ver->version, stored_ver);
+	err = devlink_info_version_stored_put(req, ver_name, stored_ver);
+	if (err)
+		return err;
+
+	if (strlen(fw_ver->commit) > 0) {
+		char commit_name[FBNIC_SN_STR_LEN];
+
+		snprintf(commit_name, FBNIC_SN_STR_LEN, "%s.commit", ver_name);
+		err = devlink_info_version_stored_put(req, commit_name,
+						      fw_ver->commit);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
 static int fbnic_devlink_info_get(struct devlink *devlink,
 				  struct devlink_info_req *req,
 				  struct netlink_ext_ack *extack)
@@ -17,6 +67,31 @@ static int fbnic_devlink_info_get(struct devlink *devlink,
 	struct fbnic_dev *fbd = devlink_priv(devlink);
 	int err;
 
+	err = fbnic_version_running_put(req, &fbd->fw_cap.running.mgmt,
+					DEVLINK_INFO_VERSION_GENERIC_FW);
+	if (err)
+		return err;
+
+	err = fbnic_version_running_put(req, &fbd->fw_cap.running.bootloader,
+					DEVLINK_INFO_VERSION_GENERIC_FW_BOOTLOADER);
+	if (err)
+		return err;
+
+	err = fbnic_version_stored_put(req, &fbd->fw_cap.stored.mgmt,
+				       DEVLINK_INFO_VERSION_GENERIC_FW);
+	if (err)
+		return err;
+
+	err = fbnic_version_stored_put(req, &fbd->fw_cap.stored.bootloader,
+				       DEVLINK_INFO_VERSION_GENERIC_FW_BOOTLOADER);
+	if (err)
+		return err;
+
+	err = fbnic_version_stored_put(req, &fbd->fw_cap.stored.undi,
+				       DEVLINK_INFO_VERSION_GENERIC_FW_UNDI);
+	if (err)
+		return err;
+
 	if (fbd->dsn) {
 		unsigned char serial[FBNIC_SN_STR_LEN];
 		u8 dsn[8];