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

Pull networking changes from David Miller:

1) Allow to dump, monitor, and change the bridge multicast database
   using netlink.  From Cong Wang.

2) RFC 5961 TCP blind data injection attack mitigation, from Eric
   Dumazet.

3) Networking user namespace support from Eric W. Biederman.

4) tuntap/virtio-net multiqueue support by Jason Wang.

5) Support for checksum offload of encapsulated packets (basically,
   tunneled traffic can still be checksummed by HW).  From Joseph
   Gasparakis.

6) Allow BPF filter access to VLAN tags, from Eric Dumazet and
   Daniel Borkmann.

7) Bridge port parameters over netlink and BPDU blocking support
   from Stephen Hemminger.

8) Improve data access patterns during inet socket demux by rearranging
   socket layout, from Eric Dumazet.

9) TIPC protocol updates and cleanups from Ying Xue, Paul Gortmaker, and
   Jon Maloy.

10) Update TCP socket hash sizing to be more in line with current day
    realities.  The existing heurstics were choosen a decade ago.
    From Eric Dumazet.

11) Fix races, queue bloat, and excessive wakeups in ATM and
    associated drivers, from Krzysztof Mazur and David Woodhouse.

12) Support DOVE (Distributed Overlay Virtual Ethernet) extensions
    in VXLAN driver, from David Stevens.

13) Add "oops_only" mode to netconsole, from Amerigo Wang.

14) Support set and query of VEB/VEPA bridge mode via PF_BRIDGE, also
    allow DCB netlink to work on namespaces other than the initial
    namespace.  From John Fastabend.

15) Support PTP in the Tigon3 driver, from Matt Carlson.

16) tun/vhost zero copy fixes and improvements, plus turn it on
    by default, from Michael S. Tsirkin.

17) Support per-association statistics in SCTP, from Michele
    Baldessari.

And many, many, driver updates, cleanups, and improvements.  Too
numerous to mention individually.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  net/mlx4_en: Add support for destination MAC in steering rules
  net/mlx4_en: Use generic etherdevice.h functions.
  net: ethtool: Add destination MAC address to flow steering API
  bridge: add support of adding and deleting mdb entries
  bridge: notify mdb changes via netlink
  ndisc: Unexport ndisc_{build,send}_skb().
  uapi: add missing netconf.h to export list
  pkt_sched: avoid requeues if possible
  solos-pci: fix double-free of TX skb in DMA mode
  bnx2: Fix accidental reversions.
  bna: Driver Version Updated to 3.1.2.1
  bna: Firmware update
  bna: Add RX State
  bna: Rx Page Based Allocation
  bna: TX Intr Coalescing Fix
  bna: Tx and Rx Optimizations
  bna: Code Cleanup and Enhancements
  ath9k: check pdata variable before dereferencing it
  ath5k: RX timestamp is reported at end of frame
  ath9k_htc: RX timestamp is reported at end of frame
  ...

1 files changed, 31 insertions, 10 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index 2245c389540..10bc093d2ca 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -413,8 +413,11 @@ static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
 
 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
 {
+	int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
+			     GET_FLAGS(SHMEM2_RD(bp, drv_flags),
+				       1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
 	if (bp->dcbx_port_params.pfc.enabled &&
-	    !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
+	    (!(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) || mfw_configured))
 		/*
 		 * 1. Fills up common PFC structures if required
 		 * 2. Configure NIG, MAC and BRB via the elink
@@ -552,10 +555,13 @@ static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
 
 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
 {
+	int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
+			     GET_FLAGS(SHMEM2_RD(bp, drv_flags),
+				       1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
 	bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 
 	if (!bp->dcbx_port_params.ets.enabled ||
-	    (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
+	    ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured))
 		return;
 
 	if (CHIP_IS_E3B0(bp))
@@ -1802,11 +1808,14 @@ static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
 	u8 cos = 0, pri = 0;
 	struct priority_cos *tt2cos;
 	u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
+	int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
+			     GET_FLAGS(SHMEM2_RD(bp, drv_flags),
+				       1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
 
 	memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
 
 	/* to disable DCB - the structure must be zeroed */
-	if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)
+	if ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured)
 		return;
 
 	/*shortcut*/
@@ -1895,6 +1904,11 @@ static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
 	struct bnx2x *bp = netdev_priv(netdev);
 	DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
 
+	if (state && ((bp->dcbx_enabled == BNX2X_DCBX_ENABLED_OFF) ||
+		      (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_INVALID))) {
+		DP(BNX2X_MSG_DCB, "Can not set dcbx to enabled while it is disabled in nvm\n");
+		return 1;
+	}
 	bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
 	return 0;
 }
@@ -1908,10 +1922,10 @@ static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
 	/* first the HW mac address */
 	memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
 
-#ifdef BCM_CNIC
-	/* second SAN address */
-	memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len);
-#endif
+	if (CNIC_LOADED(bp))
+		/* second SAN address */
+		memcpy(perm_addr+netdev->addr_len, bp->fip_mac,
+		       netdev->addr_len);
 }
 
 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
@@ -2038,10 +2052,13 @@ static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
 	if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
 		return;
 
-	bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
 
-	if (setting)
+	if (setting) {
+		bp->dcbx_config_params.admin_pfc_bitmap |= (1 << prio);
 		bp->dcbx_config_params.admin_pfc_tx_enable = 1;
+	} else {
+		bp->dcbx_config_params.admin_pfc_bitmap &= ~(1 << prio);
+	}
 }
 
 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
@@ -2073,8 +2090,12 @@ static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
 			   "Handling parity error recovery. Try again later\n");
 		return 1;
 	}
-	if (netif_running(bp->dev))
+	if (netif_running(bp->dev)) {
+		bnx2x_update_drv_flags(bp,
+				       1 << DRV_FLAGS_DCB_MFW_CONFIGURED,
+				       1);
 		bnx2x_dcbx_init(bp, true);
+	}
 	DP(BNX2X_MSG_DCB, "set_dcbx_params done (%d)\n", rc);
 	if (rc)
 		return 1;