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

Pull networking updates from David Miller:
 "Highlights (1721 non-merge commits, this has to be a record of some
  sort):

   1) Add 'random' mode to team driver, from Jiri Pirko and Eric
      Dumazet.

   2) Make it so that any driver that supports configuration of multiple
      MAC addresses can provide the forwarding database add and del
      calls by providing a default implementation and hooking that up if
      the driver doesn't have an explicit set of handlers.  From Vlad
      Yasevich.

   3) Support GSO segmentation over tunnels and other encapsulating
      devices such as VXLAN, from Pravin B Shelar.

   4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton.

   5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita
      Dukkipati.

   6) In the PHY layer, allow supporting wake-on-lan in situations where
      the PHY registers have to be written for it to be configured.

      Use it to support wake-on-lan in mv643xx_eth.

      From Michael Stapelberg.

   7) Significantly improve firewire IPV6 support, from YOSHIFUJI
      Hideaki.

   8) Allow multiple packets to be sent in a single transmission using
      network coding in batman-adv, from Martin Hundebøll.

   9) Add support for T5 cxgb4 chips, from Santosh Rastapur.

  10) Generalize the VXLAN forwarding tables so that there is more
      flexibility in configurating various aspects of the endpoints.
      From David Stevens.

  11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver,
      from Dmitry Kravkov.

  12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo
      Neira Ayuso.

  13) Start adding networking selftests.

  14) In situations of overload on the same AF_PACKET fanout socket, or
      per-cpu packet receive queue, minimize drop by distributing the
      load to other cpus/fanouts.  From Willem de Bruijn and Eric
      Dumazet.

  15) Add support for new payload offset BPF instruction, from Daniel
      Borkmann.

  16) Convert several drivers over to mdoule_platform_driver(), from
      Sachin Kamat.

  17) Provide a minimal BPF JIT image disassembler userspace tool, from
      Daniel Borkmann.

  18) Rewrite F-RTO implementation in TCP to match the final
      specification of it in RFC4138 and RFC5682.  From Yuchung Cheng.

  19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear
      you like netlink, so I implemented netlink dumping of netlink
      sockets.") From Andrey Vagin.

  20) Remove ugly passing of rtnetlink attributes into rtnl_doit
      functions, from Thomas Graf.

  21) Allow userspace to be able to see if a configuration change occurs
      in the middle of an address or device list dump, from Nicolas
      Dichtel.

  22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes
      Frederic Sowa.

  23) Increase accuracy of packet length used by packet scheduler, from
      Jason Wang.

  24) Beginning set of changes to make ipv4/ipv6 fragment handling more
      scalable and less susceptible to overload and locking contention,
      from Jesper Dangaard Brouer.

  25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*()
      instead.  From Hong Zhiguo.

  26) Optimize route usage in IPVS by avoiding reference counting where
      possible, from Julian Anastasov.

  27) Convert IPVS schedulers to RCU, also from Julian Anastasov.

  28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger
      Eitzenberger.

  29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG,
      nfnetlink_log, and nfnetlink_queue.  From Gao feng.

  30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa.

  31) Support several new r8169 chips, from Hayes Wang.

  32) Support tokenized interface identifiers in ipv6, from Daniel
      Borkmann.

  33) Use usbnet_link_change() helper in USB net driver, from Ming Lei.

  34) Add 802.1ad vlan offload support, from Patrick McHardy.

  35) Support mmap() based netlink communication, also from Patrick
      McHardy.

  36) Support HW timestamping in mlx4 driver, from Amir Vadai.

  37) Rationalize AF_PACKET packet timestamping when transmitting, from
      Willem de Bruijn and Daniel Borkmann.

  38) Bring parity to what's provided by /proc/net/packet socket dumping
      and the info provided by netlink socket dumping of AF_PACKET
      sockets.  From Nicolas Dichtel.

  39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin
      Poirier"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  filter: fix va_list build error
  af_unix: fix a fatal race with bit fields
  bnx2x: Prevent memory leak when cnic is absent
  bnx2x: correct reading of speed capabilities
  net: sctp: attribute printl with __printf for gcc fmt checks
  netlink: kconfig: move mmap i/o into netlink kconfig
  netpoll: convert mutex into a semaphore
  netlink: Fix skb ref counting.
  net_sched: act_ipt forward compat with xtables
  mlx4_en: fix a build error on 32bit arches
  Revert "bnx2x: allow nvram test to run when device is down"
  bridge: avoid OOPS if root port not found
  drivers: net: cpsw: fix kernel warn on cpsw irq enable
  sh_eth: use random MAC address if no valid one supplied
  3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA)
  tg3: fix to append hardware time stamping flags
  unix/stream: fix peeking with an offset larger than data in queue
  unix/dgram: fix peeking with an offset larger than data in queue
  unix/dgram: peek beyond 0-sized skbs
  openvswitch: Remove unneeded ovs_netdev_get_ifindex()
  ...

1 files changed, 270 insertions, 98 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 57619dd4a92b..b8fbe266ab68 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -451,7 +451,8 @@ static void bnx2x_tpa_start(struct bnx2x_fastpath *fp, u16 queue,
  * Compute number of aggregated segments, and gso_type.
  */
 static void bnx2x_set_gro_params(struct sk_buff *skb, u16 parsing_flags,
-				 u16 len_on_bd, unsigned int pkt_len)
+				 u16 len_on_bd, unsigned int pkt_len,
+				 u16 num_of_coalesced_segs)
 {
 	/* TPA aggregation won't have either IP options or TCP options
 	 * other than timestamp or IPv6 extension headers.
@@ -480,8 +481,7 @@ static void bnx2x_set_gro_params(struct sk_buff *skb, u16 parsing_flags,
 	/* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count
 	 * to skb_shinfo(skb)->gso_segs
 	 */
-	NAPI_GRO_CB(skb)->count = DIV_ROUND_UP(pkt_len - hdrs_len,
-					       skb_shinfo(skb)->gso_size);
+	NAPI_GRO_CB(skb)->count = num_of_coalesced_segs;
 }
 
 static int bnx2x_alloc_rx_sge(struct bnx2x *bp,
@@ -537,7 +537,8 @@ static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 	/* This is needed in order to enable forwarding support */
 	if (frag_size)
 		bnx2x_set_gro_params(skb, tpa_info->parsing_flags, len_on_bd,
-				     le16_to_cpu(cqe->pkt_len));
+				     le16_to_cpu(cqe->pkt_len),
+				     le16_to_cpu(cqe->num_of_coalesced_segs));
 
 #ifdef BNX2X_STOP_ON_ERROR
 	if (pages > min_t(u32, 8, MAX_SKB_FRAGS) * SGE_PAGES) {
@@ -641,6 +642,14 @@ static void bnx2x_gro_ipv6_csum(struct bnx2x *bp, struct sk_buff *skb)
 	th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb),
 				  &iph->saddr, &iph->daddr, 0);
 }
+
+static void bnx2x_gro_csum(struct bnx2x *bp, struct sk_buff *skb,
+			    void (*gro_func)(struct bnx2x*, struct sk_buff*))
+{
+	skb_set_network_header(skb, 0);
+	gro_func(bp, skb);
+	tcp_gro_complete(skb);
+}
 #endif
 
 static void bnx2x_gro_receive(struct bnx2x *bp, struct bnx2x_fastpath *fp,
@@ -648,19 +657,17 @@ static void bnx2x_gro_receive(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 {
 #ifdef CONFIG_INET
 	if (skb_shinfo(skb)->gso_size) {
-		skb_set_network_header(skb, 0);
 		switch (be16_to_cpu(skb->protocol)) {
 		case ETH_P_IP:
-			bnx2x_gro_ip_csum(bp, skb);
+			bnx2x_gro_csum(bp, skb, bnx2x_gro_ip_csum);
 			break;
 		case ETH_P_IPV6:
-			bnx2x_gro_ipv6_csum(bp, skb);
+			bnx2x_gro_csum(bp, skb, bnx2x_gro_ipv6_csum);
 			break;
 		default:
-			BNX2X_ERR("FW GRO supports only IPv4/IPv6, not 0x%04x\n",
+			BNX2X_ERR("Error: FW GRO supports only IPv4/IPv6, not 0x%04x\n",
 				  be16_to_cpu(skb->protocol));
 		}
-		tcp_gro_complete(skb);
 	}
 #endif
 	napi_gro_receive(&fp->napi, skb);
@@ -718,7 +725,7 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 		if (!bnx2x_fill_frag_skb(bp, fp, tpa_info, pages,
 					 skb, cqe, cqe_idx)) {
 			if (tpa_info->parsing_flags & PARSING_FLAGS_VLAN)
-				__vlan_hwaccel_put_tag(skb, tpa_info->vlan_tag);
+				__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tpa_info->vlan_tag);
 			bnx2x_gro_receive(bp, fp, skb);
 		} else {
 			DP(NETIF_MSG_RX_STATUS,
@@ -993,7 +1000,7 @@ reuse_rx:
 
 		if (le16_to_cpu(cqe_fp->pars_flags.flags) &
 		    PARSING_FLAGS_VLAN)
-			__vlan_hwaccel_put_tag(skb,
+			__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
 					       le16_to_cpu(cqe_fp->vlan_tag));
 		napi_gro_receive(&fp->napi, skb);
 
@@ -1037,6 +1044,7 @@ static irqreturn_t bnx2x_msix_fp_int(int irq, void *fp_cookie)
 	DP(NETIF_MSG_INTR,
 	   "got an MSI-X interrupt on IDX:SB [fp %d fw_sd %d igusb %d]\n",
 	   fp->index, fp->fw_sb_id, fp->igu_sb_id);
+
 	bnx2x_ack_sb(bp, fp->igu_sb_id, USTORM_ID, 0, IGU_INT_DISABLE, 0);
 
 #ifdef BNX2X_STOP_ON_ERROR
@@ -1718,7 +1726,7 @@ static int bnx2x_req_irq(struct bnx2x *bp)
 	return request_irq(irq, bnx2x_interrupt, flags, bp->dev->name, bp->dev);
 }
 
-static int bnx2x_setup_irqs(struct bnx2x *bp)
+int bnx2x_setup_irqs(struct bnx2x *bp)
 {
 	int rc = 0;
 	if (bp->flags & USING_MSIX_FLAG &&
@@ -2009,7 +2017,7 @@ static int bnx2x_init_hw(struct bnx2x *bp, u32 load_code)
  * Cleans the object that have internal lists without sending
  * ramrods. Should be run when interrutps are disabled.
  */
-static void bnx2x_squeeze_objects(struct bnx2x *bp)
+void bnx2x_squeeze_objects(struct bnx2x *bp)
 {
 	int rc;
 	unsigned long ramrod_flags = 0, vlan_mac_flags = 0;
@@ -2574,6 +2582,8 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 		}
 	}
 
+	bnx2x_pre_irq_nic_init(bp);
+
 	/* Connect to IRQs */
 	rc = bnx2x_setup_irqs(bp);
 	if (rc) {
@@ -2583,11 +2593,11 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 		LOAD_ERROR_EXIT(bp, load_error2);
 	}
 
-	/* Setup NIC internals and enable interrupts */
-	bnx2x_nic_init(bp, load_code);
-
 	/* Init per-function objects */
 	if (IS_PF(bp)) {
+		/* Setup NIC internals and enable interrupts */
+		bnx2x_post_irq_nic_init(bp, load_code);
+
 		bnx2x_init_bp_objs(bp);
 		bnx2x_iov_nic_init(bp);
 
@@ -2657,7 +2667,8 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 	if (IS_PF(bp))
 		rc = bnx2x_set_eth_mac(bp, true);
 	else /* vf */
-		rc = bnx2x_vfpf_set_mac(bp);
+		rc = bnx2x_vfpf_config_mac(bp, bp->dev->dev_addr, bp->fp->index,
+					   true);
 	if (rc) {
 		BNX2X_ERR("Setting Ethernet MAC failed\n");
 		LOAD_ERROR_EXIT(bp, load_error3);
@@ -2777,7 +2788,7 @@ load_error0:
 #endif /* ! BNX2X_STOP_ON_ERROR */
 }
 
-static int bnx2x_drain_tx_queues(struct bnx2x *bp)
+int bnx2x_drain_tx_queues(struct bnx2x *bp)
 {
 	u8 rc = 0, cos, i;
 
@@ -2926,9 +2937,9 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
 		bnx2x_free_fp_mem_cnic(bp);
 
 	if (IS_PF(bp)) {
-		bnx2x_free_mem(bp);
 		if (CNIC_LOADED(bp))
 			bnx2x_free_mem_cnic(bp);
+		bnx2x_free_mem(bp);
 	}
 	bp->state = BNX2X_STATE_CLOSED;
 	bp->cnic_loaded = false;
@@ -3089,11 +3100,11 @@ int bnx2x_poll(struct napi_struct *napi, int budget)
  * to ease the pain of our fellow microcode engineers
  * we use one mapping for both BDs
  */
-static noinline u16 bnx2x_tx_split(struct bnx2x *bp,
-				   struct bnx2x_fp_txdata *txdata,
-				   struct sw_tx_bd *tx_buf,
-				   struct eth_tx_start_bd **tx_bd, u16 hlen,
-				   u16 bd_prod, int nbd)
+static u16 bnx2x_tx_split(struct bnx2x *bp,
+			  struct bnx2x_fp_txdata *txdata,
+			  struct sw_tx_bd *tx_buf,
+			  struct eth_tx_start_bd **tx_bd, u16 hlen,
+			  u16 bd_prod)
 {
 	struct eth_tx_start_bd *h_tx_bd = *tx_bd;
 	struct eth_tx_bd *d_tx_bd;
@@ -3101,11 +3112,10 @@ static noinline u16 bnx2x_tx_split(struct bnx2x *bp,
 	int old_len = le16_to_cpu(h_tx_bd->nbytes);
 
 	/* first fix first BD */
-	h_tx_bd->nbd = cpu_to_le16(nbd);
 	h_tx_bd->nbytes = cpu_to_le16(hlen);
 
-	DP(NETIF_MSG_TX_QUEUED,	"TSO split header size is %d (%x:%x) nbd %d\n",
-	   h_tx_bd->nbytes, h_tx_bd->addr_hi, h_tx_bd->addr_lo, h_tx_bd->nbd);
+	DP(NETIF_MSG_TX_QUEUED,	"TSO split header size is %d (%x:%x)\n",
+	   h_tx_bd->nbytes, h_tx_bd->addr_hi, h_tx_bd->addr_lo);
 
 	/* now get a new data BD
 	 * (after the pbd) and fill it */
@@ -3134,7 +3144,7 @@ static noinline u16 bnx2x_tx_split(struct bnx2x *bp,
 
 #define bswab32(b32) ((__force __le32) swab32((__force __u32) (b32)))
 #define bswab16(b16) ((__force __le16) swab16((__force __u16) (b16)))
-static inline __le16 bnx2x_csum_fix(unsigned char *t_header, u16 csum, s8 fix)
+static __le16 bnx2x_csum_fix(unsigned char *t_header, u16 csum, s8 fix)
 {
 	__sum16 tsum = (__force __sum16) csum;
 
@@ -3149,30 +3159,47 @@ static inline __le16 bnx2x_csum_fix(unsigned char *t_header, u16 csum, s8 fix)
 	return bswab16(tsum);
 }
 
-static inline u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb)
+static u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb)
 {
 	u32 rc;
+	__u8 prot = 0;
+	__be16 protocol;
 
 	if (skb->ip_summed != CHECKSUM_PARTIAL)
-		rc = XMIT_PLAIN;
+		return XMIT_PLAIN;
 
-	else {
-		if (vlan_get_protocol(skb) == htons(ETH_P_IPV6)) {
-			rc = XMIT_CSUM_V6;
-			if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
-				rc |= XMIT_CSUM_TCP;
+	protocol = vlan_get_protocol(skb);
+	if (protocol == htons(ETH_P_IPV6)) {
+		rc = XMIT_CSUM_V6;
+		prot = ipv6_hdr(skb)->nexthdr;
+	} else {
+		rc = XMIT_CSUM_V4;
+		prot = ip_hdr(skb)->protocol;
+	}
 
+	if (!CHIP_IS_E1x(bp) && skb->encapsulation) {
+		if (inner_ip_hdr(skb)->version == 6) {
+			rc |= XMIT_CSUM_ENC_V6;
+			if (inner_ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
+				rc |= XMIT_CSUM_TCP;
 		} else {
-			rc = XMIT_CSUM_V4;
-			if (ip_hdr(skb)->protocol == IPPROTO_TCP)
+			rc |= XMIT_CSUM_ENC_V4;
+			if (inner_ip_hdr(skb)->protocol == IPPROTO_TCP)
 				rc |= XMIT_CSUM_TCP;
 		}
 	}
+	if (prot == IPPROTO_TCP)
+		rc |= XMIT_CSUM_TCP;
 
-	if (skb_is_gso_v6(skb))
-		rc |= XMIT_GSO_V6 | XMIT_CSUM_TCP | XMIT_CSUM_V6;
-	else if (skb_is_gso(skb))
-		rc |= XMIT_GSO_V4 | XMIT_CSUM_V4 | XMIT_CSUM_TCP;
+	if (skb_is_gso_v6(skb)) {
+		rc |= (XMIT_GSO_V6 | XMIT_CSUM_TCP | XMIT_CSUM_V6);
+		if (rc & XMIT_CSUM_ENC)
+			rc |= XMIT_GSO_ENC_V6;
+	} else if (skb_is_gso(skb)) {
+		rc |= (XMIT_GSO_V4 | XMIT_CSUM_V4 | XMIT_CSUM_TCP);
+		if (rc & XMIT_CSUM_ENC)
+			rc |= XMIT_GSO_ENC_V4;
+	}
 
 	return rc;
 }
@@ -3257,14 +3284,23 @@ exit_lbl:
 }
 #endif
 
-static inline void bnx2x_set_pbd_gso_e2(struct sk_buff *skb, u32 *parsing_data,
-					u32 xmit_type)
+static void bnx2x_set_pbd_gso_e2(struct sk_buff *skb, u32 *parsing_data,
+				 u32 xmit_type)
 {
+	struct ipv6hdr *ipv6;
+
 	*parsing_data |= (skb_shinfo(skb)->gso_size <<
 			      ETH_TX_PARSE_BD_E2_LSO_MSS_SHIFT) &
 			      ETH_TX_PARSE_BD_E2_LSO_MSS;
-	if ((xmit_type & XMIT_GSO_V6) &&
-	    (ipv6_hdr(skb)->nexthdr == NEXTHDR_IPV6))
+
+	if (xmit_type & XMIT_GSO_ENC_V6)
+		ipv6 = inner_ipv6_hdr(skb);
+	else if (xmit_type & XMIT_GSO_V6)
+		ipv6 = ipv6_hdr(skb);
+	else
+		ipv6 = NULL;
+
+	if (ipv6 && ipv6->nexthdr == NEXTHDR_IPV6)
 		*parsing_data |= ETH_TX_PARSE_BD_E2_IPV6_WITH_EXT_HDR;
 }
 
@@ -3275,13 +3311,13 @@ static inline void bnx2x_set_pbd_gso_e2(struct sk_buff *skb, u32 *parsing_data,
  * @pbd:	parse BD
  * @xmit_type:	xmit flags
  */
-static inline void bnx2x_set_pbd_gso(struct sk_buff *skb,
-				     struct eth_tx_parse_bd_e1x *pbd,
-				     u32 xmit_type)
+static void bnx2x_set_pbd_gso(struct sk_buff *skb,
+			      struct eth_tx_parse_bd_e1x *pbd,
+			      u32 xmit_type)
 {
 	pbd->lso_mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
 	pbd->tcp_send_seq = bswab32(tcp_hdr(skb)->seq);
-	pbd->tcp_flags = pbd_tcp_flags(skb);
+	pbd->tcp_flags = pbd_tcp_flags(tcp_hdr(skb));
 
 	if (xmit_type & XMIT_GSO_V4) {
 		pbd->ip_id = bswab16(ip_hdr(skb)->id);
@@ -3301,6 +3337,40 @@ static inline void bnx2x_set_pbd_gso(struct sk_buff *skb,
 }
 
 /**
+ * bnx2x_set_pbd_csum_enc - update PBD with checksum and return header length
+ *
+ * @bp:			driver handle
+ * @skb:		packet skb
+ * @parsing_data:	data to be updated
+ * @xmit_type:		xmit flags
+ *
+ * 57712/578xx related, when skb has encapsulation
+ */
+static u8 bnx2x_set_pbd_csum_enc(struct bnx2x *bp, struct sk_buff *skb,
+				 u32 *parsing_data, u32 xmit_type)
+{
+	*parsing_data |=
+		((((u8 *)skb_inner_transport_header(skb) - skb->data) >> 1) <<
+		ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) &
+		ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W;
+
+	if (xmit_type & XMIT_CSUM_TCP) {
+		*parsing_data |= ((inner_tcp_hdrlen(skb) / 4) <<
+			ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW_SHIFT) &
+			ETH_TX_PARSE_BD_E2_TCP_HDR_LENGTH_DW;
+
+		return skb_inner_transport_header(skb) +
+			inner_tcp_hdrlen(skb) - skb->data;
+	}
+
+	/* We support checksum offload for TCP and UDP only.
+	 * No need to pass the UDP header length - it's a constant.
+	 */
+	return skb_inner_transport_header(skb) +
+		sizeof(struct udphdr) - skb->data;
+}
+
+/**
  * bnx2x_set_pbd_csum_e2 - update PBD with checksum and return header length
  *
  * @bp:			driver handle
@@ -3308,15 +3378,15 @@ static inline void bnx2x_set_pbd_gso(struct sk_buff *skb,
  * @parsing_data:	data to be updated
  * @xmit_type:		xmit flags
  *
- * 57712 related
+ * 57712/578xx related
  */
-static inline  u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb,
-					u32 *parsing_data, u32 xmit_type)
+static u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb,
+				u32 *parsing_data, u32 xmit_type)
 {
 	*parsing_data |=
 		((((u8 *)skb_transport_header(skb) - skb->data) >> 1) <<
-		ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W_SHIFT) &
-		ETH_TX_PARSE_BD_E2_TCP_HDR_START_OFFSET_W;
+		ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) &
+		ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W;
 
 	if (xmit_type & XMIT_CSUM_TCP) {
 		*parsing_data |= ((tcp_hdrlen(skb) / 4) <<
@@ -3331,17 +3401,15 @@ static inline  u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb,
 	return skb_transport_header(skb) + sizeof(struct udphdr) - skb->data;
 }
 
-static inline void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb,
-	struct eth_tx_start_bd *tx_start_bd, u32 xmit_type)
+/* set FW indication according to inner or outer protocols if tunneled */
+static void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb,
+			       struct eth_tx_start_bd *tx_start_bd,
+			       u32 xmit_type)
 {
 	tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_L4_CSUM;
 
-	if (xmit_type & XMIT_CSUM_V4)
-		tx_start_bd->bd_flags.as_bitfield |=
-					ETH_TX_BD_FLAGS_IP_CSUM;
-	else
-		tx_start_bd->bd_flags.as_bitfield |=
-					ETH_TX_BD_FLAGS_IPV6;
+	if (xmit_type & (XMIT_CSUM_ENC_V6 | XMIT_CSUM_V6))
+		tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IPV6;
 
 	if (!(xmit_type & XMIT_CSUM_TCP))
 		tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IS_UDP;
@@ -3355,9 +3423,9 @@ static inline void bnx2x_set_sbd_csum(struct bnx2x *bp, struct sk_buff *skb,
  * @pbd:	parse BD to be updated
  * @xmit_type:	xmit flags
  */
-static inline u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb,
-	struct eth_tx_parse_bd_e1x *pbd,
-	u32 xmit_type)
+static u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb,
+			     struct eth_tx_parse_bd_e1x *pbd,
+			     u32 xmit_type)
 {
 	u8 hlen = (skb_network_header(skb) - skb->data) >> 1;
 
@@ -3403,6 +3471,75 @@ static inline u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb,
 	return hlen;
 }
 
+static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb,
+				      struct eth_tx_parse_bd_e2 *pbd_e2,
+				      struct eth_tx_parse_2nd_bd *pbd2,
+				      u16 *global_data,
+				      u32 xmit_type)
+{
+	u16 hlen_w = 0;
+	u8 outerip_off, outerip_len = 0;
+	/* from outer IP to transport */
+	hlen_w = (skb_inner_transport_header(skb) -
+		  skb_network_header(skb)) >> 1;
+
+	/* transport len */
+	if (xmit_type & XMIT_CSUM_TCP)
+		hlen_w += inner_tcp_hdrlen(skb) >> 1;
+	else
+		hlen_w += sizeof(struct udphdr) >> 1;
+
+	pbd2->fw_ip_hdr_to_payload_w = hlen_w;
+
+	if (xmit_type & XMIT_CSUM_ENC_V4) {
+		struct iphdr *iph = ip_hdr(skb);
+		pbd2->fw_ip_csum_wo_len_flags_frag =
+			bswab16(csum_fold((~iph->check) -
+					  iph->tot_len - iph->frag_off));
+	} else {
+		pbd2->fw_ip_hdr_to_payload_w =
+			hlen_w - ((sizeof(struct ipv6hdr)) >> 1);
+	}
+
+	pbd2->tcp_send_seq = bswab32(inner_tcp_hdr(skb)->seq);
+
+	pbd2->tcp_flags = pbd_tcp_flags(inner_tcp_hdr(skb));
+
+	if (xmit_type & XMIT_GSO_V4) {
+		pbd2->hw_ip_id = bswab16(inner_ip_hdr(skb)->id);
+
+		pbd_e2->data.tunnel_data.pseudo_csum =
+			bswab16(~csum_tcpudp_magic(
+					inner_ip_hdr(skb)->saddr,
+					inner_ip_hdr(skb)->daddr,
+					0, IPPROTO_TCP, 0));
+
+		outerip_len = ip_hdr(skb)->ihl << 1;
+	} else {
+		pbd_e2->data.tunnel_data.pseudo_csum =
+			bswab16(~csum_ipv6_magic(
+					&inner_ipv6_hdr(skb)->saddr,
+					&inner_ipv6_hdr(skb)->daddr,
+					0, IPPROTO_TCP, 0));
+	}
+
+	outerip_off = (skb_network_header(skb) - skb->data) >> 1;
+
+	*global_data |=
+		outerip_off |
+		(!!(xmit_type & XMIT_CSUM_V6) <<
+			ETH_TX_PARSE_2ND_BD_IP_HDR_TYPE_OUTER_SHIFT) |
+		(outerip_len <<
+			ETH_TX_PARSE_2ND_BD_IP_HDR_LEN_OUTER_W_SHIFT) |
+		((skb->protocol == cpu_to_be16(ETH_P_8021Q)) <<
+			ETH_TX_PARSE_2ND_BD_LLC_SNAP_EN_SHIFT);
+
+	if (ip_hdr(skb)->protocol == IPPROTO_UDP) {
+		SET_FLAG(*global_data, ETH_TX_PARSE_2ND_BD_TUNNEL_UDP_EXIST, 1);
+		pbd2->tunnel_udp_hdr_start_w = skb_transport_offset(skb) >> 1;
+	}
+}
+
 /* called with netif_tx_lock
  * bnx2x_tx_int() runs without netif_tx_lock unless it needs to call
  * netif_wake_queue()
@@ -3418,6 +3555,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct eth_tx_bd *tx_data_bd, *total_pkt_bd = NULL;
 	struct eth_tx_parse_bd_e1x *pbd_e1x = NULL;
 	struct eth_tx_parse_bd_e2 *pbd_e2 = NULL;
+	struct eth_tx_parse_2nd_bd *pbd2 = NULL;
 	u32 pbd_e2_parsing_data = 0;
 	u16 pkt_prod, bd_prod;
 	int nbd, txq_index;
@@ -3485,7 +3623,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			mac_type = MULTICAST_ADDRESS;
 	}
 
-#if (MAX_SKB_FRAGS >= MAX_FETCH_BD - 3)
+#if (MAX_SKB_FRAGS >= MAX_FETCH_BD - BDS_PER_TX_PKT)
 	/* First, check if we need to linearize the skb (due to FW
 	   restrictions). No need to check fragmentation if page size > 8K
 	   (there will be no violation to FW restrictions) */
@@ -3533,12 +3671,9 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	first_bd = tx_start_bd;
 
 	tx_start_bd->bd_flags.as_bitfield = ETH_TX_BD_FLAGS_START_BD;
-	SET_FLAG(tx_start_bd->general_data,
-		 ETH_TX_START_BD_PARSE_NBDS,
-		 0);
 
-	/* header nbd */
-	SET_FLAG(tx_start_bd->general_data, ETH_TX_START_BD_HDR_NBDS, 1);
+	/* header nbd: indirectly zero other flags! */
+	tx_start_bd->general_data = 1 << ETH_TX_START_BD_HDR_NBDS_SHIFT;
 
 	/* remember the first BD of the packet */
 	tx_buf->first_bd = txdata->tx_bd_prod;
@@ -3558,19 +3693,16 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		/* when transmitting in a vf, start bd must hold the ethertype
 		 * for fw to enforce it
 		 */
-#ifndef BNX2X_STOP_ON_ERROR
-		if (IS_VF(bp)) {
-#endif
+		if (IS_VF(bp))
 			tx_start_bd->vlan_or_ethertype =
 				cpu_to_le16(ntohs(eth->h_proto));
-#ifndef BNX2X_STOP_ON_ERROR
-		} else {
+		else
 			/* used by FW for packet accounting */
 			tx_start_bd->vlan_or_ethertype = cpu_to_le16(pkt_prod);
-		}
-#endif
 	}
 
+	nbd = 2; /* start_bd + pbd + frags (updated when pages are mapped) */
+
 	/* turn on parsing and get a BD */
 	bd_prod = TX_BD(NEXT_TX_IDX(bd_prod));
 
@@ -3580,23 +3712,58 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (!CHIP_IS_E1x(bp)) {
 		pbd_e2 = &txdata->tx_desc_ring[bd_prod].parse_bd_e2;
 		memset(pbd_e2, 0, sizeof(struct eth_tx_parse_bd_e2));
-		/* Set PBD in checksum offload case */
-		if (xmit_type & XMIT_CSUM)
+
+		if (xmit_type & XMIT_CSUM_ENC) {
+			u16 global_data = 0;
+
+			/* Set PBD in enc checksum offload case */
+			hlen = bnx2x_set_pbd_csum_enc(bp, skb,
+						      &pbd_e2_parsing_data,
+						      xmit_type);
+
+			/* turn on 2nd parsing and get a BD */
+			bd_prod = TX_BD(NEXT_TX_IDX(bd_prod));
+
+			pbd2 = &txdata->tx_desc_ring[bd_prod].parse_2nd_bd;
+
+			memset(pbd2, 0, sizeof(*pbd2));
+
+			pbd_e2->data.tunnel_data.ip_hdr_start_inner_w =
+				(skb_inner_network_header(skb) -
+				 skb->data) >> 1;
+
+			if (xmit_type & XMIT_GSO_ENC)
+				bnx2x_update_pbds_gso_enc(skb, pbd_e2, pbd2,
+							  &global_data,
+							  xmit_type);
+
+			pbd2->global_data = cpu_to_le16(global_data);
+
+			/* add addition parse BD indication to start BD */
+			SET_FLAG(tx_start_bd->general_data,
+				 ETH_TX_START_BD_PARSE_NBDS, 1);
+			/* set encapsulation flag in start BD */
+			SET_FLAG(tx_start_bd->general_data,
+				 ETH_TX_START_BD_TUNNEL_EXIST, 1);
+			nbd++;
+		} else if (xmit_type & XMIT_CSUM) {
+			/* Set PBD in checksum offload case w/o encapsulation */
 			hlen = bnx2x_set_pbd_csum_e2(bp, skb,
 						     &pbd_e2_parsing_data,
 						     xmit_type);
+		}
 
-		if (IS_MF_SI(bp) || IS_VF(bp)) {
-			/* fill in the MAC addresses in the PBD - for local
-			 * switching
-			 */
-			bnx2x_set_fw_mac_addr(&pbd_e2->src_mac_addr_hi,
-					      &pbd_e2->src_mac_addr_mid,
-					      &pbd_e2->src_mac_addr_lo,
+		/* Add the macs to the parsing BD this is a vf */
+		if (IS_VF(bp)) {
+			/* override GRE parameters in BD */
+			bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.src_hi,
+					      &pbd_e2->data.mac_addr.src_mid,
+					      &pbd_e2->data.mac_addr.src_lo,
 					      eth->h_source);
-			bnx2x_set_fw_mac_addr(&pbd_e2->dst_mac_addr_hi,
-					      &pbd_e2->dst_mac_addr_mid,
-					      &pbd_e2->dst_mac_addr_lo,
+
+			bnx2x_set_fw_mac_addr(&pbd_e2->data.mac_addr.dst_hi,
+					      &pbd_e2->data.mac_addr.dst_mid,
+					      &pbd_e2->data.mac_addr.dst_lo,
 					      eth->h_dest);
 		}
 
@@ -3618,14 +3785,13 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	/* Setup the data pointer of the first BD of the packet */
 	tx_start_bd->addr_hi = cpu_to_le32(U64_HI(mapping));
 	tx_start_bd->addr_lo = cpu_to_le32(U64_LO(mapping));
-	nbd = 2; /* start_bd + pbd + frags (updated when pages are mapped) */
 	tx_start_bd->nbytes = cpu_to_le16(skb_headlen(skb));
 	pkt_size = tx_start_bd->nbytes;
 
 	DP(NETIF_MSG_TX_QUEUED,
-	   "first bd @%p  addr (%x:%x)  nbd %d  nbytes %d  flags %x  vlan %x\n",
+	   "first bd @%p  addr (%x:%x)  nbytes %d  flags %x  vlan %x\n",
 	   tx_start_bd, tx_start_bd->addr_hi, tx_start_bd->addr_lo,
-	   le16_to_cpu(tx_start_bd->nbd), le16_to_cpu(tx_start_bd->nbytes),
+	   le16_to_cpu(tx_start_bd->nbytes),
 	   tx_start_bd->bd_flags.as_bitfield,
 	   le16_to_cpu(tx_start_bd->vlan_or_ethertype));
 
@@ -3638,10 +3804,12 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 		tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_SW_LSO;
 
-		if (unlikely(skb_headlen(skb) > hlen))
+		if (unlikely(skb_headlen(skb) > hlen)) {
+			nbd++;
 			bd_prod = bnx2x_tx_split(bp, txdata, tx_buf,
 						 &tx_start_bd, hlen,
-						 bd_prod, ++nbd);
+						 bd_prod);
+		}
 		if (!CHIP_IS_E1x(bp))
 			bnx2x_set_pbd_gso_e2(skb, &pbd_e2_parsing_data,
 					     xmit_type);
@@ -3731,9 +3899,13 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (pbd_e2)
 		DP(NETIF_MSG_TX_QUEUED,
 		   "PBD (E2) @%p  dst %x %x %x src %x %x %x parsing_data %x\n",
-		   pbd_e2, pbd_e2->dst_mac_addr_hi, pbd_e2->dst_mac_addr_mid,
-		   pbd_e2->dst_mac_addr_lo, pbd_e2->src_mac_addr_hi,
-		   pbd_e2->src_mac_addr_mid, pbd_e2->src_mac_addr_lo,
+		   pbd_e2,
+		   pbd_e2->data.mac_addr.dst_hi,
+		   pbd_e2->data.mac_addr.dst_mid,
+		   pbd_e2->data.mac_addr.dst_lo,
+		   pbd_e2->data.mac_addr.src_hi,
+		   pbd_e2->data.mac_addr.src_mid,
+		   pbd_e2->data.mac_addr.src_lo,
 		   pbd_e2->parsing_data);
 	DP(NETIF_MSG_TX_QUEUED, "doorbell: nbd %d  bd %u\n", nbd, bd_prod);