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

Pull networking updates from David Miller:

 1) BPF debugger and asm tool by Daniel Borkmann.

 2) Speed up create/bind in AF_PACKET, also from Daniel Borkmann.

 3) Correct reciprocal_divide and update users, from Hannes Frederic
    Sowa and Daniel Borkmann.

 4) Currently we only have a "set" operation for the hw timestamp socket
    ioctl, add a "get" operation to match.  From Ben Hutchings.

 5) Add better trace events for debugging driver datapath problems, also
    from Ben Hutchings.

 6) Implement auto corking in TCP, from Eric Dumazet.  Basically, if we
    have a small send and a previous packet is already in the qdisc or
    device queue, defer until TX completion or we get more data.

 7) Allow userspace to manage ipv6 temporary addresses, from Jiri Pirko.

 8) Add a qdisc bypass option for AF_PACKET sockets, from Daniel
    Borkmann.

 9) Share IP header compression code between Bluetooth and IEEE802154
    layers, from Jukka Rissanen.

10) Fix ipv6 router reachability probing, from Jiri Benc.

11) Allow packets to be captured on macvtap devices, from Vlad Yasevich.

12) Support tunneling in GRO layer, from Jerry Chu.

13) Allow bonding to be configured fully using netlink, from Scott
    Feldman.

14) Allow AF_PACKET users to obtain the VLAN TPID, just like they can
    already get the TCI.  From Atzm Watanabe.

15) New "Heavy Hitter" qdisc, from Terry Lam.

16) Significantly improve the IPSEC support in pktgen, from Fan Du.

17) Allow ipv4 tunnels to cache routes, just like sockets.  From Tom
    Herbert.

18) Add Proportional Integral Enhanced packet scheduler, from Vijay
    Subramanian.

19) Allow openvswitch to mmap'd netlink, from Thomas Graf.

20) Key TCP metrics blobs also by source address, not just destination
    address.  From Christoph Paasch.

21) Support 10G in generic phylib.  From Andy Fleming.

22) Try to short-circuit GRO flow compares using device provided RX
    hash, if provided.  From Tom Herbert.

The wireless and netfilter folks have been busy little bees too.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2064 commits)
  net/cxgb4: Fix referencing freed adapter
  ipv6: reallocate addrconf router for ipv6 address when lo device up
  fib_frontend: fix possible NULL pointer dereference
  rtnetlink: remove IFLA_BOND_SLAVE definition
  rtnetlink: remove check for fill_slave_info in rtnl_have_link_slave_info
  qlcnic: update version to 5.3.55
  qlcnic: Enhance logic to calculate msix vectors.
  qlcnic: Refactor interrupt coalescing code for all adapters.
  qlcnic: Update poll controller code path
  qlcnic: Interrupt code cleanup
  qlcnic: Enhance Tx timeout debugging.
  qlcnic: Use bool for rx_mac_learn.
  bonding: fix u64 division
  rtnetlink: add missing IFLA_BOND_AD_INFO_UNSPEC
  sfc: Use the correct maximum TX DMA ring size for SFC9100
  Add Shradha Shah as the sfc driver maintainer.
  net/vxlan: Share RX skb de-marking and checksum checks with ovs
  tulip: cleanup by using ARRAY_SIZE()
  ip_tunnel: clear IPCB in ip_tunnel_xmit() in case dst_link_failure() is called
  net/cxgb4: Don't retrieve stats during recovery
  ...

1 files changed, 129 insertions, 52 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index e7845e5be1c7..aec5ef2ed7ce 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -166,6 +166,7 @@ enum bnx2x_vfop_qteardown_state {
 	   BNX2X_VFOP_QTEARDOWN_RXMODE,
 	   BNX2X_VFOP_QTEARDOWN_CLR_VLAN,
 	   BNX2X_VFOP_QTEARDOWN_CLR_MAC,
+	   BNX2X_VFOP_QTEARDOWN_CLR_MCAST,
 	   BNX2X_VFOP_QTEARDOWN_QDTOR,
 	   BNX2X_VFOP_QTEARDOWN_DONE
 };
@@ -617,7 +618,7 @@ static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf)
 					   &vlan_mac->user_req.vlan_mac_flags,
 					   &vlan_mac->ramrod_flags);
 
-		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
+		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 
 	case BNX2X_VFOP_VLAN_MAC_CONFIG_SINGLE:
 		/* next state */
@@ -628,7 +629,7 @@ static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf)
 		if (vfop->rc == -EEXIST)
 			vfop->rc = 0;
 
-		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
+		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 
 	case BNX2X_VFOP_VLAN_MAC_CHK_DONE:
 		vfop->rc = !!obj->raw.check_pending(&obj->raw);
@@ -645,7 +646,7 @@ static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf)
 
 		set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
 		vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
-		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
+		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 
 	case BNX2X_VFOP_VLAN_CONFIG_LIST:
 		/* next state */
@@ -657,7 +658,7 @@ static void bnx2x_vfop_vlan_mac(struct bnx2x *bp, struct bnx2x_virtf *vf)
 			set_bit(RAMROD_CONT, &vlan_mac->ramrod_flags);
 			vfop->rc = bnx2x_config_vlan_mac(bp, vlan_mac);
 		}
-		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
+		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 
 	default:
 		bnx2x_vfop_default(state);
@@ -798,10 +799,10 @@ int bnx2x_vfop_mac_list_cmd(struct bnx2x *bp,
 	return -ENOMEM;
 }
 
-int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp,
-			    struct bnx2x_virtf *vf,
-			    struct bnx2x_vfop_cmd *cmd,
-			    int qid, u16 vid, bool add)
+static int bnx2x_vfop_vlan_set_cmd(struct bnx2x *bp,
+				   struct bnx2x_virtf *vf,
+				   struct bnx2x_vfop_cmd *cmd,
+				   int qid, u16 vid, bool add)
 {
 	struct bnx2x_vfop *vfop = bnx2x_vfop_add(bp, vf);
 	int rc;
@@ -1023,25 +1024,35 @@ static void bnx2x_vfop_qflr(struct bnx2x *bp, struct bnx2x_virtf *vf)
 	case BNX2X_VFOP_QFLR_CLR_VLAN:
 		/* vlan-clear-all: driver-only, don't consume credit */
 		vfop->state = BNX2X_VFOP_QFLR_CLR_MAC;
-		if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj)))
-			vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd, qid,
-							      true);
-		if (vfop->rc)
-			goto op_err;
-		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
+
+		if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, vlan_obj))) {
+			/* the vlan_mac vfop will re-schedule us */
+			vfop->rc = bnx2x_vfop_vlan_delall_cmd(bp, vf, &cmd,
+							      qid, true);
+			if (vfop->rc)
+				goto op_err;
+			return;
+
+		} else {
+			/* need to reschedule ourselves */
+			bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
+		}
 
 	case BNX2X_VFOP_QFLR_CLR_MAC:
 		/* mac-clear-all: driver only consume credit */
 		vfop->state = BNX2X_VFOP_QFLR_TERMINATE;
-		if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj)))
-			vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid,
-							     true);
-		DP(BNX2X_MSG_IOV,
-		   "VF[%d] vfop->rc after bnx2x_vfop_mac_delall_cmd was %d",
-		   vf->abs_vfid, vfop->rc);
-		if (vfop->rc)
-			goto op_err;
-		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
+		if (!validate_vlan_mac(bp, &bnx2x_vfq(vf, qid, mac_obj))) {
+			/* the vlan_mac vfop will re-schedule us */
+			vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd,
+							     qid, true);
+			if (vfop->rc)
+				goto op_err;
+			return;
+
+		} else {
+			/* need to reschedule ourselves */
+			bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
+		}
 
 	case BNX2X_VFOP_QFLR_TERMINATE:
 		qstate = &vfop->op_p->qctor.qstate;
@@ -1112,7 +1123,10 @@ static void bnx2x_vfop_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf)
 	switch (state) {
 	case BNX2X_VFOP_MCAST_DEL:
 		/* clear existing mcasts */
-		vfop->state = BNX2X_VFOP_MCAST_ADD;
+		vfop->state = (args->mc_num) ? BNX2X_VFOP_MCAST_ADD
+					     : BNX2X_VFOP_MCAST_CHK_DONE;
+		mcast->mcast_list_len = vf->mcast_list_len;
+		vf->mcast_list_len = args->mc_num;
 		vfop->rc = bnx2x_config_mcast(bp, mcast, BNX2X_MCAST_CMD_DEL);
 		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 
@@ -1120,17 +1134,17 @@ static void bnx2x_vfop_mcast(struct bnx2x *bp, struct bnx2x_virtf *vf)
 		if (raw->check_pending(raw))
 			goto op_pending;
 
-		if (args->mc_num) {
-			/* update mcast list on the ramrod params */
-			INIT_LIST_HEAD(&mcast->mcast_list);
-			for (i = 0; i < args->mc_num; i++)
-				list_add_tail(&(args->mc[i].link),
-					      &mcast->mcast_list);
-			/* add new mcasts */
-			vfop->state = BNX2X_VFOP_MCAST_CHK_DONE;
-			vfop->rc = bnx2x_config_mcast(bp, mcast,
-						      BNX2X_MCAST_CMD_ADD);
-		}
+		/* update mcast list on the ramrod params */
+		INIT_LIST_HEAD(&mcast->mcast_list);
+		for (i = 0; i < args->mc_num; i++)
+			list_add_tail(&(args->mc[i].link),
+				      &mcast->mcast_list);
+		mcast->mcast_list_len = args->mc_num;
+
+		/* add new mcasts */
+		vfop->state = BNX2X_VFOP_MCAST_CHK_DONE;
+		vfop->rc = bnx2x_config_mcast(bp, mcast,
+					      BNX2X_MCAST_CMD_ADD);
 		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_DONE);
 
 	case BNX2X_VFOP_MCAST_CHK_DONE:
@@ -1312,12 +1326,19 @@ static void bnx2x_vfop_qdown(struct bnx2x *bp, struct bnx2x_virtf *vf)
 
 	case BNX2X_VFOP_QTEARDOWN_CLR_MAC:
 		/* mac-clear-all: consume credit */
-		vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR;
+		vfop->state = BNX2X_VFOP_QTEARDOWN_CLR_MCAST;
 		vfop->rc = bnx2x_vfop_mac_delall_cmd(bp, vf, &cmd, qid, false);
 		if (vfop->rc)
 			goto op_err;
 		return;
 
+	case BNX2X_VFOP_QTEARDOWN_CLR_MCAST:
+		vfop->state = BNX2X_VFOP_QTEARDOWN_QDTOR;
+		vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 0, false);
+		if (vfop->rc)
+			goto op_err;
+		return;
+
 	case BNX2X_VFOP_QTEARDOWN_QDTOR:
 		/* run the queue destruction flow */
 		DP(BNX2X_MSG_IOV, "case: BNX2X_VFOP_QTEARDOWN_QDTOR\n");
@@ -2197,6 +2218,7 @@ int bnx2x_iov_nic_init(struct bnx2x *bp)
 		 *  It needs to be initialized here so that it can be safely
 		 *  handled by a subsequent FLR flow.
 		 */
+		vf->mcast_list_len = 0;
 		bnx2x_init_mcast_obj(bp, &vf->mcast_obj, 0xFF,
 				     0xFF, 0xFF, 0xFF,
 				     bnx2x_vf_sp(bp, vf, mcast_rdata),
@@ -2372,8 +2394,9 @@ int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem)
 		goto get_vf;
 	case EVENT_RING_OPCODE_MALICIOUS_VF:
 		abs_vfid = elem->message.data.malicious_vf_event.vf_id;
-		DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d err_id=0x%x\n",
-		   abs_vfid, elem->message.data.malicious_vf_event.err_id);
+		BNX2X_ERR("Got VF MALICIOUS notification abs_vfid=%d err_id=0x%x\n",
+			  abs_vfid,
+			  elem->message.data.malicious_vf_event.err_id);
 		goto get_vf;
 	default:
 		return 1;
@@ -2425,15 +2448,9 @@ get_vf:
 		bnx2x_vf_handle_filters_eqe(bp, vf);
 		break;
 	case EVENT_RING_OPCODE_VF_FLR:
-		DP(BNX2X_MSG_IOV, "got VF [%d] FLR notification\n",
-		   vf->abs_vfid);
-		/* Do nothing for now */
-		break;
 	case EVENT_RING_OPCODE_MALICIOUS_VF:
-		DP(BNX2X_MSG_IOV, "Got VF MALICIOUS notification abs_vfid=%d error id %x\n",
-		   abs_vfid, elem->message.data.malicious_vf_event.err_id);
 		/* Do nothing for now */
-		break;
+		return 0;
 	}
 	/* SRIOV: reschedule any 'in_progress' operations */
 	bnx2x_iov_sp_event(bp, cid, false);
@@ -2857,13 +2874,9 @@ static void bnx2x_vfop_close(struct bnx2x *bp, struct bnx2x_virtf *vf)
 				goto op_err;
 			return;
 		}
-
-		/* remove multicasts */
 		vfop->state = BNX2X_VFOP_CLOSE_HW;
-		vfop->rc = bnx2x_vfop_mcast_cmd(bp, vf, &cmd, NULL, 0, false);
-		if (vfop->rc)
-			goto op_err;
-		return;
+		vfop->rc = 0;
+		bnx2x_vfop_finalize(vf, vfop->rc, VFOP_CONT);
 
 	case BNX2X_VFOP_CLOSE_HW:
 
@@ -2897,6 +2910,9 @@ op_done:
 
 	DP(BNX2X_MSG_IOV, "set state to acquired\n");
 	bnx2x_vfop_end(bp, vf, vfop);
+op_pending:
+	/* Not supported at the moment; Exists for macros only */
+	return;
 }
 
 int bnx2x_vfop_close_cmd(struct bnx2x *bp,
@@ -3119,6 +3135,60 @@ void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
 	   vf->abs_vfid, vf->op_current);
 }
 
+static int bnx2x_set_pf_tx_switching(struct bnx2x *bp, bool enable)
+{
+	struct bnx2x_queue_state_params q_params;
+	u32 prev_flags;
+	int i, rc;
+
+	/* Verify changes are needed and record current Tx switching state */
+	prev_flags = bp->flags;
+	if (enable)
+		bp->flags |= TX_SWITCHING;
+	else
+		bp->flags &= ~TX_SWITCHING;
+	if (prev_flags == bp->flags)
+		return 0;
+
+	/* Verify state enables the sending of queue ramrods */
+	if ((bp->state != BNX2X_STATE_OPEN) ||
+	    (bnx2x_get_q_logical_state(bp,
+				      &bnx2x_sp_obj(bp, &bp->fp[0]).q_obj) !=
+	     BNX2X_Q_LOGICAL_STATE_ACTIVE))
+		return 0;
+
+	/* send q. update ramrod to configure Tx switching */
+	memset(&q_params, 0, sizeof(q_params));
+	__set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
+	q_params.cmd = BNX2X_Q_CMD_UPDATE;
+	__set_bit(BNX2X_Q_UPDATE_TX_SWITCHING_CHNG,
+		  &q_params.params.update.update_flags);
+	if (enable)
+		__set_bit(BNX2X_Q_UPDATE_TX_SWITCHING,
+			  &q_params.params.update.update_flags);
+	else
+		__clear_bit(BNX2X_Q_UPDATE_TX_SWITCHING,
+			    &q_params.params.update.update_flags);
+
+	/* send the ramrod on all the queues of the PF */
+	for_each_eth_queue(bp, i) {
+		struct bnx2x_fastpath *fp = &bp->fp[i];
+
+		/* Set the appropriate Queue object */
+		q_params.q_obj = &bnx2x_sp_obj(bp, fp).q_obj;
+
+		/* Update the Queue state */
+		rc = bnx2x_queue_state_change(bp, &q_params);
+		if (rc) {
+			BNX2X_ERR("Failed to configure Tx switching\n");
+			return rc;
+		}
+	}
+
+	DP(BNX2X_MSG_IOV, "%s Tx Switching\n", enable ? "Enabled" : "Disabled");
+	return 0;
+}
+
 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
 {
 	struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev));
@@ -3146,12 +3216,14 @@ int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
 
 	bp->requested_nr_virtfn = num_vfs_param;
 	if (num_vfs_param == 0) {
+		bnx2x_set_pf_tx_switching(bp, false);
 		pci_disable_sriov(dev);
 		return 0;
 	} else {
 		return bnx2x_enable_sriov(bp);
 	}
 }
+
 #define IGU_ENTRY_SIZE 4
 
 int bnx2x_enable_sriov(struct bnx2x *bp)
@@ -3229,6 +3301,11 @@ int bnx2x_enable_sriov(struct bnx2x *bp)
 	 */
 	DP(BNX2X_MSG_IOV, "about to call enable sriov\n");
 	bnx2x_disable_sriov(bp);
+
+	rc = bnx2x_set_pf_tx_switching(bp, true);
+	if (rc)
+		return rc;
+
 	rc = pci_enable_sriov(bp->pdev, req_vfs);
 	if (rc) {
 		BNX2X_ERR("pci_enable_sriov failed with %d\n", rc);
@@ -3639,7 +3716,7 @@ enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
 
 	/* the mac address in bulletin board is valid and is new */
 	if (bulletin.valid_bitmap & 1 << MAC_ADDR_VALID &&
-	    memcmp(bulletin.mac, bp->old_bulletin.mac, ETH_ALEN)) {
+	    !ether_addr_equal(bulletin.mac, bp->old_bulletin.mac)) {
 		/* update new mac to net device */
 		memcpy(bp->dev->dev_addr, bulletin.mac, ETH_ALEN);
 	}