[PATCH v4 net-next 2/6] bnxt_en: Add fw.mgmt.api version to devlink info_get cb.

Vasundhara Volam
2020-03-27T09:37:05Z

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>
---
v1->v2: Display the minimum version of fw spec supported between fw and
driver, instead of version implemented by driver.
---
v3->v4: Rename "fw.api" to "fw.mgmt.api"
---
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(-)

diff --git a/Documentation/networking/devlink/bnxt.rst b/Documentation/networking/devlink/bnxt.rst
index 82ef9ec..7ab34c9 100644
--- a/Documentation/networking/devlink/bnxt.rst
+++ b/Documentation/networking/devlink/bnxt.rst
@@ -66,6 +66,9 @@ The ``bnxt_en`` driver reports the following versions
* - ``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
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 1ea8028..3861dff 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -7223,7 +7223,7 @@ static int __bnxt_hwrm_ver_get(struct bnxt *bp, bool silent)
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;
@@ -7243,6 +7243,19 @@ static int bnxt_hwrm_ver_get(struct bnxt *bp)
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);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index eaf20e3..a1e9d33 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1730,6 +1730,7 @@ 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;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index d3c93cc..39c2ac4 100644
--- 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 devlink *dl, struct devlink_info_req *req,
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);
--
1.8.3.1