5 files changed, 35 insertions, 12 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index a923bc4d5a1f..4046f97378c2 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2760,6 +2760,7 @@ load_error2:
 	bp->port.pmf = 0;
 load_error1:
 	bnx2x_napi_disable(bp);
+	bnx2x_del_all_napi(bp);
 
 	/* clear pf_load status, as it was already set */
 	if (IS_PF(bp))
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index 31c5787970db..77ebae0ac64a 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -8647,7 +8647,9 @@ void bnx2x_handle_module_detect_int(struct link_params *params)
 						MDIO_WC_DEVAD,
 						MDIO_WC_REG_DIGITAL5_MISC6,
 						&rx_tx_in_reset);
-				if (!rx_tx_in_reset) {
+				if ((!rx_tx_in_reset) &&
+				    (params->link_flags &
+				     PHY_INITIALIZED)) {
 					bnx2x_warpcore_reset_lane(bp, phy, 1);
 					bnx2x_warpcore_config_sfi(phy, params);
 					bnx2x_warpcore_reset_lane(bp, phy, 0);
@@ -12527,6 +12529,8 @@ int bnx2x_phy_init(struct link_params *params, struct link_vars *vars)
 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
 	vars->mac_type = MAC_TYPE_NONE;
 	vars->phy_flags = 0;
+	vars->check_kr2_recovery_cnt = 0;
+	params->link_flags = PHY_INITIALIZED;
 	/* Driver opens NIG-BRB filters */
 	bnx2x_set_rx_filter(params, 1);
 	/* Check if link flap can be avoided */
@@ -12691,6 +12695,7 @@ int bnx2x_lfa_reset(struct link_params *params,
 	struct bnx2x *bp = params->bp;
 	vars->link_up = 0;
 	vars->phy_flags = 0;
+	params->link_flags &= ~PHY_INITIALIZED;
 	if (!params->lfa_base)
 		return bnx2x_link_reset(params, vars, 1);
 	/*
@@ -13411,6 +13416,7 @@ static void bnx2x_disable_kr2(struct link_params *params,
 	vars->link_attr_sync &= ~LINK_ATTR_SYNC_KR2_ENABLE;
 	bnx2x_update_link_attr(params, vars->link_attr_sync);
 
+	vars->check_kr2_recovery_cnt = CHECK_KR2_RECOVERY_CNT;
 	/* Restart AN on leading lane */
 	bnx2x_warpcore_restart_AN_KR(phy, params);
 }
@@ -13439,6 +13445,15 @@ static void bnx2x_check_kr2_wa(struct link_params *params,
 		return;
 	}
 
+	/* Once KR2 was disabled, wait 5 seconds before checking KR2 recovery
+	 * since some switches tend to reinit the AN process and clear the
+	 * advertised BP/NP after ~2 seconds causing the KR2 to be disabled
+	 * and recovered many times
+	 */
+	if (vars->check_kr2_recovery_cnt > 0) {
+		vars->check_kr2_recovery_cnt--;
+		return;
+	}
 	lane = bnx2x_get_warpcore_lane(phy, params);
 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
 			  MDIO_AER_BLOCK_AER_REG, lane);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
index be5c195d03dd..56c2aae4e2c8 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
@@ -309,6 +309,7 @@ struct link_params {
 				req_flow_ctrl is set to AUTO */
 	u16 link_flags;
 #define LINK_FLAGS_INT_DISABLED		(1<<0)
+#define PHY_INITIALIZED		(1<<1)
 	u32 lfa_base;
 };
 
@@ -342,7 +343,8 @@ struct link_vars {
 	u32 link_status;
 	u32 eee_status;
 	u8 fault_detected;
-	u8 rsrv1;
+	u8 check_kr2_recovery_cnt;
+#define CHECK_KR2_RECOVERY_CNT	5
 	u16 periodic_flags;
 #define PERIODIC_FLAGS_LINK_EVENT	0x0001
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
index 364e37ecbc5c..198f6f1c9ad5 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
@@ -459,8 +459,9 @@ struct bnx2x_fw_port_stats_old {
 
 #define UPDATE_QSTAT(s, t) \
 	do { \
-		qstats->t##_hi = qstats_old->t##_hi + le32_to_cpu(s.hi); \
 		qstats->t##_lo = qstats_old->t##_lo + le32_to_cpu(s.lo); \
+		qstats->t##_hi = qstats_old->t##_hi + le32_to_cpu(s.hi) \
+			+ ((qstats->t##_lo < qstats_old->t##_lo) ? 1 : 0); \
 	} while (0)
 
 #define UPDATE_QSTAT_OLD(f) \
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index fdb9b5655414..67d2663b3974 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -1869,6 +1869,8 @@ static void tg3_link_report(struct tg3 *tp)
 
 		tg3_ump_link_report(tp);
 	}
+
+	tp->link_up = netif_carrier_ok(tp->dev);
 }
 
 static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
@@ -2522,12 +2524,6 @@ static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
 	return err;
 }
 
-static void tg3_carrier_on(struct tg3 *tp)
-{
-	netif_carrier_on(tp->dev);
-	tp->link_up = true;
-}
-
 static void tg3_carrier_off(struct tg3 *tp)
 {
 	netif_carrier_off(tp->dev);
@@ -2553,7 +2549,7 @@ static int tg3_phy_reset(struct tg3 *tp)
 		return -EBUSY;
 
 	if (netif_running(tp->dev) && tp->link_up) {
-		tg3_carrier_off(tp);
+		netif_carrier_off(tp->dev);
 		tg3_link_report(tp);
 	}
 
@@ -4134,6 +4130,14 @@ static void tg3_phy_copper_begin(struct tg3 *tp)
 		tp->link_config.active_speed = tp->link_config.speed;
 		tp->link_config.active_duplex = tp->link_config.duplex;
 
+		if (tg3_asic_rev(tp) == ASIC_REV_5714) {
+			/* With autoneg disabled, 5715 only links up when the
+			 * advertisement register has the configured speed
+			 * enabled.
+			 */
+			tg3_writephy(tp, MII_ADVERTISE, ADVERTISE_ALL);
+		}
+
 		bmcr = 0;
 		switch (tp->link_config.speed) {
 		default:
@@ -4262,9 +4266,9 @@ static bool tg3_test_and_report_link_chg(struct tg3 *tp, int curr_link_up)
 {
 	if (curr_link_up != tp->link_up) {
 		if (curr_link_up) {
-			tg3_carrier_on(tp);
+			netif_carrier_on(tp->dev);
 		} else {
-			tg3_carrier_off(tp);
+			netif_carrier_off(tp->dev);
 			if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
 				tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
 		}