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, 37 insertions, 12 deletions

diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.c b/drivers/net/ethernet/intel/igb/e1000_phy.c
index 3404bc79f4ca..fe76004aca4e 100644
--- a/drivers/net/ethernet/intel/igb/e1000_phy.c
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.c
@@ -1207,20 +1207,25 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw)
 	u16 phy_data;
 	bool link;
 
-	/*
-	 * Clear Auto-Crossover to force MDI manually.  M88E1000 requires MDI
-	 * forced whenever speed and duplex are forced.
-	 */
-	ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
-	if (ret_val)
-		goto out;
+	/* I210 and I211 devices support Auto-Crossover in forced operation. */
+	if (phy->type != e1000_phy_i210) {
+		/*
+		 * Clear Auto-Crossover to force MDI manually.  M88E1000
+		 * requires MDI forced whenever speed and duplex are forced.
+		 */
+		ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL,
+					    &phy_data);
+		if (ret_val)
+			goto out;
 
-	phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
-	ret_val = phy->ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
-	if (ret_val)
-		goto out;
+		phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
+		ret_val = phy->ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL,
+					     phy_data);
+		if (ret_val)
+			goto out;
 
-	hw_dbg("M88E1000 PSCR: %X\n", phy_data);
+		hw_dbg("M88E1000 PSCR: %X\n", phy_data);
+	}
 
 	ret_val = phy->ops.read_reg(hw, PHY_CONTROL, &phy_data);
 	if (ret_val)
@@ -1710,6 +1715,26 @@ s32 igb_get_cable_length_m88_gen2(struct e1000_hw *hw)
 
 	switch (hw->phy.id) {
 	case I210_I_PHY_ID:
+		/* Get cable length from PHY Cable Diagnostics Control Reg */
+		ret_val = phy->ops.read_reg(hw, (0x7 << GS40G_PAGE_SHIFT) +
+					    (I347AT4_PCDL + phy->addr),
+					    &phy_data);
+		if (ret_val)
+			return ret_val;
+
+		/* Check if the unit of cable length is meters or cm */
+		ret_val = phy->ops.read_reg(hw, (0x7 << GS40G_PAGE_SHIFT) +
+					    I347AT4_PCDC, &phy_data2);
+		if (ret_val)
+			return ret_val;
+
+		is_cm = !(phy_data2 & I347AT4_PCDC_CABLE_LENGTH_UNIT);
+
+		/* Populate the phy structure with cable length in meters */
+		phy->min_cable_length = phy_data / (is_cm ? 100 : 1);
+		phy->max_cable_length = phy_data / (is_cm ? 100 : 1);
+		phy->cable_length = phy_data / (is_cm ? 100 : 1);
+		break;
 	case I347AT4_E_PHY_ID:
 		/* Remember the original page select and set it to 7 */
 		ret_val = phy->ops.read_reg(hw, I347AT4_PAGE_SELECT,