bnxt_en: Log unknown link speed appropriately.

[ Upstream commit 8eddb3e7ce124dd6375d3664f1aae13873318b0f ]

If the VF virtual link is set to always enabled, the speed may be
unknown when the physical link is down.  The driver currently logs
the link speed as 4294967295 Mbps which is SPEED_UNKNOWN.  Modify
the link up log message as "speed unknown" which makes more sense.

Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/1602493854-29283-7-git-send-email-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 7b5d5219248721ea10387b3f15e5dd40fe50fbf7..b8d534b719d4fe145c39cf8897db9e1f7366b49c 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -8735,6 +8735,11 @@ static void bnxt_report_link(struct bnxt *bp)
                u16 fec;
 
                netif_carrier_on(bp->dev);
+               speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
+               if (speed == SPEED_UNKNOWN) {
+                       netdev_info(bp->dev, "NIC Link is Up, speed unknown\n");
+                       return;
+               }
                if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL)
                        duplex = "full";
                else
@@ -8747,7 +8752,6 @@ static void bnxt_report_link(struct bnxt *bp)
                        flow_ctrl = "ON - receive";
                else
                        flow_ctrl = "none";
-               speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
                netdev_info(bp->dev, "NIC Link is Up, %u Mbps %s duplex, Flow control: %s\n",
                            speed, duplex, flow_ctrl);
                if (bp->flags & BNXT_FLAG_EEE_CAP)