Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Pull networking changes from David Miller:

 1) Multiply in netfilter IPVS can overflow when calculating destination
    weight.  From Simon Kirby.

 2) Use after free fixes in IPVS from Julian Anastasov.

 3) SFC driver bug fixes from Daniel Pieczko.

 4) Memory leak in pcan_usb_core failure paths, from Alexey Khoroshilov.

 5) Locking and encapsulation fixes to serial line CAN driver, from
    Andrew Naujoks.

 6) Duplex and VF handling fixes to bnx2x driver from Yaniv Rosner,
    Eilon Greenstein, and Ariel Elior.

 7) In lapb, if no other packets are outstanding, T1 timeouts actually
    stall things and no packet gets sent.  Fix from Josselin Costanzi.

 8) ICMP redirects should not make it to the socket error queues, from
    Duan Jiong.

 9) Fix bugs in skge DMA mapping error handling, from Nikulas Patocka.

10) Fix setting of VLAN priority field on via-rhine driver, from Roget
    Luethi.

11) Fix TX stalls and VLAN promisc programming in be2net driver from
    Ajit Khaparde.

12) Packet padding doesn't get handled correctly in new usbnet SG
    support code, from Ming Lei.

13) Fix races in netdevice teardown wrt.  network namespace closing.
    From Eric W.  Biederman.

14) Fix potential missed initialization of net_secret if not TCP
    connections are openned.  From Eric Dumazet.

15) Cinterion PLXX product ID in qmi_wwan driver is wrong, from
    Aleksander Morgado.

16) skb_cow_head() can change skb->data and thus packet header pointers,
    don't use stale ip_hdr reference in ip_tunnel code.

17) Backend state transition handling fixes in xen-netback, from Paul
    Durrant.

18) Packet offset for AH protocol is handled wrong in flow dissector,
    from Eric Dumazet.

19) Taking down an fq packet scheduler instance can leave stale packets
    in the queues, fix from Eric Dumazet.

20) Fix performance regressions introduced by TCP Small Queues.  From
    Eric Dumazet.

21) IPV6 GRE tunneling code calculates max_headroom incorrectly, from
    Hannes Frederic Sowa.

22) Multicast timer handlers in ipv4 and ipv6 can be the last and final
    reference to the ipv4/ipv6 specific network device state, so use the
    reference put that will check and release the object if the
    reference hits zero.  From Salam Noureddine.

23) Fix memory corruption in ip_tunnel driver, and use skb_push()
    instead of __skb_push() so that similar bugs are less hard to find.
    From Steffen Klassert.

24) Add forgotten hookup of rtnl_ops in SIT and ip6tnl drivers, from
    Nicolas Dichtel.

25) fq scheduler doesn't accurately rate limit in certain circumstances,
    from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (103 commits)
  pkt_sched: fq: rate limiting improvements
  ip6tnl: allow to use rtnl ops on fb tunnel
  sit: allow to use rtnl ops on fb tunnel
  ip_tunnel: Remove double unregister of the fallback device
  ip_tunnel_core: Change __skb_push back to skb_push
  ip_tunnel: Add fallback tunnels to the hash lists
  ip_tunnel: Fix a memory corruption in ip_tunnel_xmit
  qlcnic: Fix SR-IOV configuration
  ll_temac: Reset dma descriptors indexes on ndo_open
  skbuff: size of hole is wrong in a comment
  ipv6 mcast: use in6_dev_put in timer handlers instead of __in6_dev_put
  ipv4 igmp: use in_dev_put in timer handlers instead of __in_dev_put
  ethernet: moxa: fix incorrect placement of __initdata tag
  ipv6: gre: correct calculation of max_headroom
  powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file
  Revert "powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file"
  bonding: Fix broken promiscuity reference counting issue
  tcp: TSQ can use a dynamic limit
  dm9601: fix IFF_ALLMULTI handling
  pkt_sched: fq: qdisc dismantle fixes
  ...

1 files changed, 99 insertions, 90 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index d60a2ea3da1..51468227bf3 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -175,6 +175,7 @@ typedef int (*read_sfp_module_eeprom_func_p)(struct bnx2x_phy *phy,
 #define EDC_MODE_LINEAR				0x0022
 #define EDC_MODE_LIMITING				0x0044
 #define EDC_MODE_PASSIVE_DAC			0x0055
+#define EDC_MODE_ACTIVE_DAC			0x0066
 
 /* ETS defines*/
 #define DCBX_INVALID_COS					(0xFF)
@@ -3684,6 +3685,41 @@ static void bnx2x_warpcore_enable_AN_KR2(struct bnx2x_phy *phy,
 	bnx2x_update_link_attr(params, vars->link_attr_sync);
 }
 
+static void bnx2x_disable_kr2(struct link_params *params,
+			      struct link_vars *vars,
+			      struct bnx2x_phy *phy)
+{
+	struct bnx2x *bp = params->bp;
+	int i;
+	static struct bnx2x_reg_set reg_set[] = {
+		/* Step 1 - Program the TX/RX alignment markers */
+		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0x7690},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xe647},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0xc4f0},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0x7690},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xe647},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0xc4f0},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000c},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6000},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0000},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0002},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x0000},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x0af7},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x0af7},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0002},
+		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0000}
+	};
+	DP(NETIF_MSG_LINK, "Disabling 20G-KR2\n");
+
+	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
+		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
+				 reg_set[i].val);
+	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;
+}
+
 static void bnx2x_warpcore_set_lpi_passthrough(struct bnx2x_phy *phy,
 					       struct link_params *params)
 {
@@ -3715,7 +3751,6 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy,
 					struct link_params *params,
 					struct link_vars *vars) {
 	u16 lane, i, cl72_ctrl, an_adv = 0;
-	u16 ucode_ver;
 	struct bnx2x *bp = params->bp;
 	static struct bnx2x_reg_set reg_set[] = {
 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7},
@@ -3806,15 +3841,7 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy,
 
 	/* Advertise pause */
 	bnx2x_ext_phy_set_pause(params, phy, vars);
-	/* Set KR Autoneg Work-Around flag for Warpcore version older than D108
-	 */
-	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
-			MDIO_WC_REG_UC_INFO_B1_VERSION, &ucode_ver);
-	if (ucode_ver < 0xd108) {
-		DP(NETIF_MSG_LINK, "Enable AN KR work-around. WC ver:0x%x\n",
-			       ucode_ver);
-		vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
-	}
+	vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
 				 MDIO_WC_REG_DIGITAL5_MISC7, 0x100);
 
@@ -3838,6 +3865,8 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy,
 		bnx2x_set_aer_mmd(params, phy);
 
 		bnx2x_warpcore_enable_AN_KR2(phy, params, vars);
+	} else {
+		bnx2x_disable_kr2(params, vars, phy);
 	}
 
 	/* Enable Autoneg: only on the main lane */
@@ -4347,20 +4376,14 @@ static void bnx2x_warpcore_config_runtime(struct bnx2x_phy *phy,
 	struct bnx2x *bp = params->bp;
 	u32 serdes_net_if;
 	u16 gp_status1 = 0, lnkup = 0, lnkup_kr = 0;
-	u16 lane = bnx2x_get_warpcore_lane(phy, params);
 
 	vars->turn_to_run_wc_rt = vars->turn_to_run_wc_rt ? 0 : 1;
 
 	if (!vars->turn_to_run_wc_rt)
 		return;
 
-	/* Return if there is no link partner */
-	if (!(bnx2x_warpcore_get_sigdet(phy, params))) {
-		DP(NETIF_MSG_LINK, "bnx2x_warpcore_get_sigdet false\n");
-		return;
-	}
-
 	if (vars->rx_tx_asic_rst) {
+		u16 lane = bnx2x_get_warpcore_lane(phy, params);
 		serdes_net_if = (REG_RD(bp, params->shmem_base +
 				offsetof(struct shmem_region, dev_info.
 				port_hw_config[params->port].default_cfg)) &
@@ -4375,14 +4398,8 @@ static void bnx2x_warpcore_config_runtime(struct bnx2x_phy *phy,
 				/*10G KR*/
 			lnkup_kr = (gp_status1 >> (12+lane)) & 0x1;
 
-			DP(NETIF_MSG_LINK,
-				"gp_status1 0x%x\n", gp_status1);
-
 			if (lnkup_kr || lnkup) {
-					vars->rx_tx_asic_rst = 0;
-					DP(NETIF_MSG_LINK,
-					"link up, rx_tx_asic_rst 0x%x\n",
-					vars->rx_tx_asic_rst);
+				vars->rx_tx_asic_rst = 0;
 			} else {
 				/* Reset the lane to see if link comes up.*/
 				bnx2x_warpcore_reset_lane(bp, phy, 1);
@@ -4507,10 +4524,14 @@ static void bnx2x_warpcore_config_init(struct bnx2x_phy *phy,
 			 * enabled transmitter to avoid current leakage in case
 			 * no module is connected
 			 */
-			if (bnx2x_is_sfp_module_plugged(phy, params))
-				bnx2x_sfp_module_detection(phy, params);
-			else
-				bnx2x_sfp_e3_set_transmitter(params, phy, 1);
+			if ((params->loopback_mode == LOOPBACK_NONE) ||
+			    (params->loopback_mode == LOOPBACK_EXT)) {
+				if (bnx2x_is_sfp_module_plugged(phy, params))
+					bnx2x_sfp_module_detection(phy, params);
+				else
+					bnx2x_sfp_e3_set_transmitter(params,
+								     phy, 1);
+			}
 
 			bnx2x_warpcore_config_sfi(phy, params);
 			break;
@@ -5757,6 +5778,11 @@ static int bnx2x_warpcore_read_status(struct bnx2x_phy *phy,
 	rc = bnx2x_get_link_speed_duplex(phy, params, vars, link_up, gp_speed,
 					 duplex);
 
+	/* In case of KR link down, start up the recovering procedure */
+	if ((!link_up) && (phy->media_type == ETH_PHY_KR) &&
+	    (!(phy->flags & FLAGS_WC_DUAL_MODE)))
+		vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
+
 	DP(NETIF_MSG_LINK, "duplex %x  flow_ctrl 0x%x link_status 0x%x\n",
 		   vars->duplex, vars->flow_ctrl, vars->link_status);
 	return rc;
@@ -6507,6 +6533,11 @@ static int bnx2x_link_initialize(struct link_params *params,
 			params->phy[INT_PHY].config_init(phy, params, vars);
 	}
 
+	/* Re-read this value in case it was changed inside config_init due to
+	 * limitations of optic module
+	 */
+	vars->line_speed = params->phy[INT_PHY].req_line_speed;
+
 	/* Init external phy*/
 	if (non_ext_phy) {
 		if (params->phy[INT_PHY].supported &
@@ -8080,7 +8111,10 @@ static int bnx2x_get_edc_mode(struct bnx2x_phy *phy,
 		if (copper_module_type &
 		    SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE) {
 			DP(NETIF_MSG_LINK, "Active Copper cable detected\n");
-			check_limiting_mode = 1;
+			if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
+				*edc_mode = EDC_MODE_ACTIVE_DAC;
+			else
+				check_limiting_mode = 1;
 		} else if (copper_module_type &
 			SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE) {
 				DP(NETIF_MSG_LINK,
@@ -8555,6 +8589,7 @@ static void bnx2x_warpcore_set_limiting_mode(struct link_params *params,
 		mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
 		break;
 	case EDC_MODE_PASSIVE_DAC:
+	case EDC_MODE_ACTIVE_DAC:
 		mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_SFP_DAC;
 		break;
 	default:
@@ -9730,32 +9765,41 @@ static int bnx2x_848xx_cmn_config_init(struct bnx2x_phy *phy,
 			 MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
 			 an_1000_val);
 
-	/* set 100 speed advertisement */
-	if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
-	     (phy->speed_cap_mask &
-	      (PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL |
-	       PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF))) {
-		an_10_100_val |= (1<<7);
-		/* Enable autoneg and restart autoneg for legacy speeds */
-		autoneg_val |= (1<<9 | 1<<12);
-
-		if (phy->req_duplex == DUPLEX_FULL)
+	/* Set 10/100 speed advertisement */
+	if (phy->req_line_speed == SPEED_AUTO_NEG) {
+		if (phy->speed_cap_mask &
+		    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL) {
+			/* Enable autoneg and restart autoneg for legacy speeds
+			 */
+			autoneg_val |= (1<<9 | 1<<12);
 			an_10_100_val |= (1<<8);
-		DP(NETIF_MSG_LINK, "Advertising 100M\n");
-	}
-	/* set 10 speed advertisement */
-	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
-	     (phy->speed_cap_mask &
-	      (PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL |
-	       PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF)) &&
-	     (phy->supported &
-	      (SUPPORTED_10baseT_Half |
-	       SUPPORTED_10baseT_Full)))) {
-		an_10_100_val |= (1<<5);
-		autoneg_val |= (1<<9 | 1<<12);
-		if (phy->req_duplex == DUPLEX_FULL)
+			DP(NETIF_MSG_LINK, "Advertising 100M-FD\n");
+		}
+
+		if (phy->speed_cap_mask &
+		    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF) {
+			/* Enable autoneg and restart autoneg for legacy speeds
+			 */
+			autoneg_val |= (1<<9 | 1<<12);
+			an_10_100_val |= (1<<7);
+			DP(NETIF_MSG_LINK, "Advertising 100M-HD\n");
+		}
+
+		if ((phy->speed_cap_mask &
+		     PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) &&
+		    (phy->supported & SUPPORTED_10baseT_Full)) {
 			an_10_100_val |= (1<<6);
-		DP(NETIF_MSG_LINK, "Advertising 10M\n");
+			autoneg_val |= (1<<9 | 1<<12);
+			DP(NETIF_MSG_LINK, "Advertising 10M-FD\n");
+		}
+
+		if ((phy->speed_cap_mask &
+		     PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF) &&
+		    (phy->supported & SUPPORTED_10baseT_Half)) {
+			an_10_100_val |= (1<<5);
+			autoneg_val |= (1<<9 | 1<<12);
+			DP(NETIF_MSG_LINK, "Advertising 10M-HD\n");
+		}
 	}
 
 	/* Only 10/100 are allowed to work in FORCE mode */
@@ -13432,43 +13476,6 @@ static void bnx2x_sfp_tx_fault_detection(struct bnx2x_phy *phy,
 		}
 	}
 }
-static void bnx2x_disable_kr2(struct link_params *params,
-			      struct link_vars *vars,
-			      struct bnx2x_phy *phy)
-{
-	struct bnx2x *bp = params->bp;
-	int i;
-	static struct bnx2x_reg_set reg_set[] = {
-		/* Step 1 - Program the TX/RX alignment markers */
-		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0x7690},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xe647},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0xc4f0},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0x7690},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xe647},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0xc4f0},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000c},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6000},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0000},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0002},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x0000},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x0af7},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x0af7},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0002},
-		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0000}
-	};
-	DP(NETIF_MSG_LINK, "Disabling 20G-KR2\n");
-
-	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
-		bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
-				 reg_set[i].val);
-	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);
-}
-
 static void bnx2x_kr2_recovery(struct link_params *params,
 			       struct link_vars *vars,
 			       struct bnx2x_phy *phy)
@@ -13546,6 +13553,8 @@ static void bnx2x_check_kr2_wa(struct link_params *params,
 		/* Disable KR2 on both lanes */
 		DP(NETIF_MSG_LINK, "BP=0x%x, NP=0x%x\n", base_page, next_page);
 		bnx2x_disable_kr2(params, vars, phy);
+		/* Restart AN on leading lane */
+		bnx2x_warpcore_restart_AN_KR(phy, params);
 		return;
 	}
 }