From: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Date: Fri, 27 Mar 2020 15:04:52 +0530
Subject: bnxt_en: Add fw.mgmt.api version to devlink info_get cb.
Patch-mainline: v5.7-rc1
Git-commit: b7a444f078592921fa6f83f44b42dd88c08955ee
References: jsc#SLE-15075

Display the minimum version of firmware interface spec supported
between driver and firmware. Also update bnxt.rst documentation file.

Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 Documentation/networking/devlink/bnxt.rst         |    3 +++
 drivers/net/ethernet/broadcom/bnxt/bnxt.c         |   15 ++++++++++++++-
 drivers/net/ethernet/broadcom/bnxt/bnxt.h         |    1 +
 drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c |    6 ++++++
 4 files changed, 24 insertions(+), 1 deletion(-)

--- a/Documentation/networking/devlink/bnxt.rst
+++ b/Documentation/networking/devlink/bnxt.rst
@@ -66,6 +66,9 @@ The ``bnxt_en`` driver reports the follo
    * - ``fw.app``
      - stored, running
      - Data path firmware version
+   * - ``fw.mgmt.api``
+     - running
+     - Minimum firmware interface spec version supported between driver and firmware
    * - ``fw.mgmt``
      - stored, running
      - Management firmware version
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -7227,7 +7227,7 @@ static int __bnxt_hwrm_ver_get(struct bn
 static int bnxt_hwrm_ver_get(struct bnxt *bp)
 {
 	struct hwrm_ver_get_output *resp = bp->hwrm_cmd_resp_addr;
-	u32 dev_caps_cfg;
+	u32 dev_caps_cfg, hwrm_ver;
 	int rc;
 
 	bp->hwrm_max_req_len = HWRM_MAX_REQ_LEN;
@@ -7247,6 +7247,19 @@ static int bnxt_hwrm_ver_get(struct bnxt
 			    resp->hwrm_intf_upd_8b);
 		netdev_warn(bp->dev, "Please update firmware with HWRM interface 1.0.0 or newer.\n");
 	}
+
+	hwrm_ver = HWRM_VERSION_MAJOR << 16 | HWRM_VERSION_MINOR << 8 |
+			HWRM_VERSION_UPDATE;
+
+	if (bp->hwrm_spec_code > hwrm_ver)
+		snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d",
+			 HWRM_VERSION_MAJOR, HWRM_VERSION_MINOR,
+			 HWRM_VERSION_UPDATE);
+	else
+		snprintf(bp->hwrm_ver_supp, FW_VER_STR_LEN, "%d.%d.%d",
+			 resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b,
+			 resp->hwrm_intf_upd_8b);
+
 	snprintf(bp->fw_ver_str, BC_HWRM_STR_LEN, "%d.%d.%d.%d",
 		 resp->hwrm_fw_maj_8b, resp->hwrm_fw_min_8b,
 		 resp->hwrm_fw_bld_8b, resp->hwrm_fw_rsvd_8b);
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1728,6 +1728,7 @@ struct bnxt {
 #define BC_HWRM_STR_LEN		21
 #define PHY_VER_STR_LEN         (FW_VER_STR_LEN - BC_HWRM_STR_LEN)
 	char			fw_ver_str[FW_VER_STR_LEN];
+	char			hwrm_ver_supp[FW_VER_STR_LEN];
 	__be16			vxlan_port;
 	u8			vxlan_port_cnt;
 	__le16			vxlan_fw_dst_port_id;
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -475,6 +475,12 @@ static int bnxt_dl_info_get(struct devli
 	if (rc)
 		return rc;
 
+	rc = devlink_info_version_running_put(req,
+				DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API,
+				bp->hwrm_ver_supp);
+	if (rc)
+		return rc;
+
 	if (!(bp->flags & BNXT_FLAG_CHIP_P5)) {
 		rc = devlink_info_version_running_put(req,
 			DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, mgmt_ver);