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

Pull networking changes from David Miller:

 1) GRE now works over ipv6, from Dmitry Kozlov.

 2) Make SCTP more network namespace aware, from Eric Biederman.

 3) TEAM driver now works with non-ethernet devices, from Jiri Pirko.

 4) Make openvswitch network namespace aware, from Pravin B Shelar.

 5) IPV6 NAT implementation, from Patrick McHardy.

 6) Server side support for TCP Fast Open, from Jerry Chu and others.

 7) Packet BPF filter supports MOD and XOR, from Eric Dumazet and Daniel
    Borkmann.

 8) Increate the loopback default MTU to 64K, from Eric Dumazet.

 9) Use a per-task rather than per-socket page fragment allocator for
    outgoing networking traffic.  This benefits processes that have very
    many mostly idle sockets, which is quite common.

    From Eric Dumazet.

10) Use up to 32K for page fragment allocations, with fallbacks to
    smaller sizes when higher order page allocations fail.  Benefits are
    a) less segments for driver to process b) less calls to page
    allocator c) less waste of space.

    From Eric Dumazet.

11) Allow GRO to be used on GRE tunnels, from Eric Dumazet.

12) VXLAN device driver, one way to handle VLAN issues such as the
    limitation of 4096 VLAN IDs yet still have some level of isolation.
    From Stephen Hemminger.

13) As usual there is a large boatload of driver changes, with the scale
    perhaps tilted towards the wireless side this time around.

Fix up various fairly trivial conflicts, mostly caused by the user
namespace changes.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1012 commits)
  hyperv: Add buffer for extended info after the RNDIS response message.
  hyperv: Report actual status in receive completion packet
  hyperv: Remove extra allocated space for recv_pkt_list elements
  hyperv: Fix page buffer handling in rndis_filter_send_request()
  hyperv: Fix the missing return value in rndis_filter_set_packet_filter()
  hyperv: Fix the max_xfer_size in RNDIS initialization
  vxlan: put UDP socket in correct namespace
  vxlan: Depend on CONFIG_INET
  sfc: Fix the reported priorities of different filter types
  sfc: Remove EFX_FILTER_FLAG_RX_OVERRIDE_IP
  sfc: Fix loopback self-test with separate_tx_channels=1
  sfc: Fix MCDI structure field lookup
  sfc: Add parentheses around use of bitfield macro arguments
  sfc: Fix null function pointer in efx_sriov_channel_type
  vxlan: virtual extensible lan
  igmp: export symbol ip_mc_leave_group
  netlink: add attributes to fdb interface
  tg3: unconditionally select HWMON support when tg3 is enabled.
  Revert "net: ti cpsw ethernet: allow reading phy interface mode from DT"
  gre: fix sparse warning
  ...

1 files changed, 108 insertions, 14 deletions

diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.c b/drivers/net/ethernet/intel/ixgbevf/vf.c
index ec89b86f7ca4..0c7447e6fcc8 100644
--- a/drivers/net/ethernet/intel/ixgbevf/vf.c
+++ b/drivers/net/ethernet/intel/ixgbevf/vf.c
@@ -79,6 +79,9 @@ static s32 ixgbevf_reset_hw_vf(struct ixgbe_hw *hw)
 	/* Call adapter stop to disable tx/rx and clear interrupts */
 	hw->mac.ops.stop_adapter(hw);
 
+	/* reset the api version */
+	hw->api_version = ixgbe_mbox_api_10;
+
 	IXGBE_WRITE_REG(hw, IXGBE_VFCTRL, IXGBE_CTRL_RST);
 	IXGBE_WRITE_FLUSH(hw);
 
@@ -97,7 +100,7 @@ static s32 ixgbevf_reset_hw_vf(struct ixgbe_hw *hw)
 	msgbuf[0] = IXGBE_VF_RESET;
 	mbx->ops.write_posted(hw, msgbuf, 1);
 
-	msleep(10);
+	mdelay(10);
 
 	/* set our "perm_addr" based on info provided by PF */
 	/* also set up the mc_filter_type which is piggy backed
@@ -346,16 +349,32 @@ static s32 ixgbevf_update_mc_addr_list_vf(struct ixgbe_hw *hw,
 static s32 ixgbevf_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 			       bool vlan_on)
 {
+	struct ixgbe_mbx_info *mbx = &hw->mbx;
 	u32 msgbuf[2];
+	s32 err;
 
 	msgbuf[0] = IXGBE_VF_SET_VLAN;
 	msgbuf[1] = vlan;
 	/* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
 	msgbuf[0] |= vlan_on << IXGBE_VT_MSGINFO_SHIFT;
 
-	ixgbevf_write_msg_read_ack(hw, msgbuf, 2);
+	err = mbx->ops.write_posted(hw, msgbuf, 2);
+	if (err)
+		goto mbx_err;
 
-	return 0;
+	err = mbx->ops.read_posted(hw, msgbuf, 2);
+	if (err)
+		goto mbx_err;
+
+	/* remove extra bits from the message */
+	msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
+	msgbuf[0] &= ~(0xFF << IXGBE_VT_MSGINFO_SHIFT);
+
+	if (msgbuf[0] != (IXGBE_VF_SET_VLAN | IXGBE_VT_MSGTYPE_ACK))
+		err = IXGBE_ERR_INVALID_ARGUMENT;
+
+mbx_err:
+	return err;
 }
 
 /**
@@ -389,20 +408,23 @@ static s32 ixgbevf_check_mac_link_vf(struct ixgbe_hw *hw,
 				     bool *link_up,
 				     bool autoneg_wait_to_complete)
 {
+	struct ixgbe_mbx_info *mbx = &hw->mbx;
+	struct ixgbe_mac_info *mac = &hw->mac;
+	s32 ret_val = 0;
 	u32 links_reg;
+	u32 in_msg = 0;
 
-	if (!(hw->mbx.ops.check_for_rst(hw))) {
-		*link_up = false;
-		*speed = 0;
-		return -1;
-	}
+	/* If we were hit with a reset drop the link */
+	if (!mbx->ops.check_for_rst(hw) || !mbx->timeout)
+		mac->get_link_status = true;
 
-	links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
+	if (!mac->get_link_status)
+		goto out;
 
-	if (links_reg & IXGBE_LINKS_UP)
-		*link_up = true;
-	else
-		*link_up = false;
+	/* if link status is down no point in checking to see if pf is up */
+	links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
+	if (!(links_reg & IXGBE_LINKS_UP))
+		goto out;
 
 	switch (links_reg & IXGBE_LINKS_SPEED_82599) {
 	case IXGBE_LINKS_SPEED_10G_82599:
@@ -416,7 +438,79 @@ static s32 ixgbevf_check_mac_link_vf(struct ixgbe_hw *hw,
 		break;
 	}
 
-	return 0;
+	/* if the read failed it could just be a mailbox collision, best wait
+	 * until we are called again and don't report an error */
+	if (mbx->ops.read(hw, &in_msg, 1))
+		goto out;
+
+	if (!(in_msg & IXGBE_VT_MSGTYPE_CTS)) {
+		/* msg is not CTS and is NACK we must have lost CTS status */
+		if (in_msg & IXGBE_VT_MSGTYPE_NACK)
+			ret_val = -1;
+		goto out;
+	}
+
+	/* the pf is talking, if we timed out in the past we reinit */
+	if (!mbx->timeout) {
+		ret_val = -1;
+		goto out;
+	}
+
+	/* if we passed all the tests above then the link is up and we no
+	 * longer need to check for link */
+	mac->get_link_status = false;
+
+out:
+	*link_up = !mac->get_link_status;
+	return ret_val;
+}
+
+/**
+ *  ixgbevf_rlpml_set_vf - Set the maximum receive packet length
+ *  @hw: pointer to the HW structure
+ *  @max_size: value to assign to max frame size
+ **/
+void ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size)
+{
+	u32 msgbuf[2];
+
+	msgbuf[0] = IXGBE_VF_SET_LPE;
+	msgbuf[1] = max_size;
+	ixgbevf_write_msg_read_ack(hw, msgbuf, 2);
+}
+
+/**
+ *  ixgbevf_negotiate_api_version - Negotiate supported API version
+ *  @hw: pointer to the HW structure
+ *  @api: integer containing requested API version
+ **/
+int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api)
+{
+	int err;
+	u32 msg[3];
+
+	/* Negotiate the mailbox API version */
+	msg[0] = IXGBE_VF_API_NEGOTIATE;
+	msg[1] = api;
+	msg[2] = 0;
+	err = hw->mbx.ops.write_posted(hw, msg, 3);
+
+	if (!err)
+		err = hw->mbx.ops.read_posted(hw, msg, 3);
+
+	if (!err) {
+		msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
+
+		/* Store value and return 0 on success */
+		if (msg[0] == (IXGBE_VF_API_NEGOTIATE | IXGBE_VT_MSGTYPE_ACK)) {
+			hw->api_version = api;
+			return 0;
+		}
+
+		err = IXGBE_ERR_INVALID_ARGUMENT;
+	}
+
+	return err;
 }
 
 static const struct ixgbe_mac_operations ixgbevf_mac_ops = {