[TG3]: Call netif_carrier_off() during phy reset

Add netif_carrier_off() call during tg3_phy_reset(). This is needed
to properly track the netif_carrier state in cases where we do a
PHY reset with interrupts disabled. The SerDes code will not run
properly if the netif_carrier state is wrong.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 73e271e59c6a..a28accbfcdf7 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -974,6 +974,8 @@ static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
         return err;
 }
 
+static void tg3_link_report(struct tg3 *);
+
 /* This will reset the tigon3 PHY if there is no valid
  * link unless the FORCE argument is non-zero.
  */
@@ -987,6 +989,11 @@ static int tg3_phy_reset(struct tg3 *tp)
         if (err != 0)
                 return -EBUSY;
 
+        if (netif_running(tp->dev) && netif_carrier_ok(tp->dev)) {
+                netif_carrier_off(tp->dev);
+                tg3_link_report(tp);
+        }
+
         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {