bnx2x: prevent timeouts when using PFC

Prevent updating the xmac PFC configuration when using a link speed
slower than 10G -the umac block is responsible for 1G or slower connections,
therefore it is possible the xmac block is reset when connection is slower.

Signed-off-by: Yaniv Rosner <yaniv.rosner@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index f4beb46..40a7b8d 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -2667,9 +2667,11 @@ int bnx2x_update_pfc(struct link_params *params,
                return bnx2x_status;
 
        DP(NETIF_MSG_LINK, "About to update PFC in BMAC\n");
-       if (CHIP_IS_E3(bp))
-               bnx2x_update_pfc_xmac(params, vars, 0);
-       else {
+
+       if (CHIP_IS_E3(bp)) {
+               if (vars->mac_type == MAC_TYPE_XMAC)
+                       bnx2x_update_pfc_xmac(params, vars, 0);
+       } else {
                val = REG_RD(bp, MISC_REG_RESET_REG_2);
                if ((val &
                     (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port))