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

Pull networking updates from David Miller:
 "Highlights:

   1) Steady transitioning of the BPF instructure to a generic spot so
      all kernel subsystems can make use of it, from Alexei Starovoitov.

   2) SFC driver supports busy polling, from Alexandre Rames.

   3) Take advantage of hash table in UDP multicast delivery, from David
      Held.

   4) Lighten locking, in particular by getting rid of the LRU lists, in
      inet frag handling.  From Florian Westphal.

   5) Add support for various RFC6458 control messages in SCTP, from
      Geir Ola Vaagland.

   6) Allow to filter bridge forwarding database dumps by device, from
      Jamal Hadi Salim.

   7) virtio-net also now supports busy polling, from Jason Wang.

   8) Some low level optimization tweaks in pktgen from Jesper Dangaard
      Brouer.

   9) Add support for ipv6 address generation modes, so that userland
      can have some input into the process.  From Jiri Pirko.

  10) Consolidate common TCP connection request code in ipv4 and ipv6,
      from Octavian Purdila.

  11) New ARP packet logger in netfilter, from Pablo Neira Ayuso.

  12) Generic resizable RCU hash table, with intial users in netlink and
      nftables.  From Thomas Graf.

  13) Maintain a name assignment type so that userspace can see where a
      network device name came from (enumerated by kernel, assigned
      explicitly by userspace, etc.) From Tom Gundersen.

  14) Automatic flow label generation on transmit in ipv6, from Tom
      Herbert.

  15) New packet timestamping facilities from Willem de Bruijn, meant to
      assist in measuring latencies going into/out-of the packet
      scheduler, latency from TCP data transmission to ACK, etc"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits)
  cxgb4 : Disable recursive mailbox commands when enabling vi
  net: reduce USB network driver config options.
  tg3: Modify tg3_tso_bug() to handle multiple TX rings
  amd-xgbe: Perform phy connect/disconnect at dev open/stop
  amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask
  net: sun4i-emac: fix memory leak on bad packet
  sctp: fix possible seqlock seadlock in sctp_packet_transmit()
  Revert "net: phy: Set the driver when registering an MDIO bus device"
  cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
  team: Simplify return path of team_newlink
  bridge: Update outdated comment on promiscuous mode
  net-timestamp: ACK timestamp for bytestreams
  net-timestamp: TCP timestamping
  net-timestamp: SCHED timestamp on entering packet scheduler
  net-timestamp: add key to disambiguate concurrent datagrams
  net-timestamp: move timestamp flags out of sk_flags
  net-timestamp: extend SCM_TIMESTAMPING ancillary data struct
  cxgb4i : Move stray CPL definitions to cxgb4 driver
  tcp: reduce spurious retransmits due to transient SACK reneging
  qlcnic: Initialize dcbnl_ops before register_netdev
  ...

1 files changed, 30 insertions, 15 deletions

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index b988d16cd34e..999fb72688d2 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -884,14 +884,16 @@ static int cpsw_set_coalesce(struct net_device *ndev,
 	u32 addnl_dvdr = 1;
 	u32 coal_intvl = 0;
 
-	if (!coal->rx_coalesce_usecs)
-		return -EINVAL;
-
 	coal_intvl = coal->rx_coalesce_usecs;
 
 	int_ctrl =  readl(&priv->wr_regs->int_control);
 	prescale = priv->bus_freq_mhz * 4;
 
+	if (!coal->rx_coalesce_usecs) {
+		int_ctrl &= ~(CPSW_INTPRESCALE_MASK | CPSW_INTPACEEN);
+		goto update_return;
+	}
+
 	if (coal_intvl < CPSW_CMINTMIN_INTVL)
 		coal_intvl = CPSW_CMINTMIN_INTVL;
 
@@ -919,6 +921,8 @@ static int cpsw_set_coalesce(struct net_device *ndev,
 	int_ctrl |= CPSW_INTPACEEN;
 	int_ctrl &= (~CPSW_INTPRESCALE_MASK);
 	int_ctrl |= (prescale & CPSW_INTPRESCALE_MASK);
+
+update_return:
 	writel(int_ctrl, &priv->wr_regs->int_control);
 
 	cpsw_notice(priv, timer, "Set coalesce to %d usecs.\n", coal_intvl);
@@ -999,17 +1003,6 @@ static void cpsw_get_ethtool_stats(struct net_device *ndev,
 	}
 }
 
-static inline int __show_stat(char *buf, int maxlen, const char *name, u32 val)
-{
-	static char *leader = "........................................";
-
-	if (!val)
-		return 0;
-	else
-		return snprintf(buf, maxlen, "%s %s %10d\n", name,
-				leader + strlen(name), val);
-}
-
 static int cpsw_common_res_usage_state(struct cpsw_priv *priv)
 {
 	u32 i;
@@ -1671,14 +1664,34 @@ static const struct net_device_ops cpsw_netdev_ops = {
 	.ndo_vlan_rx_kill_vid	= cpsw_ndo_vlan_rx_kill_vid,
 };
 
+static int cpsw_get_regs_len(struct net_device *ndev)
+{
+	struct cpsw_priv *priv = netdev_priv(ndev);
+
+	return priv->data.ale_entries * ALE_ENTRY_WORDS * sizeof(u32);
+}
+
+static void cpsw_get_regs(struct net_device *ndev,
+			  struct ethtool_regs *regs, void *p)
+{
+	struct cpsw_priv *priv = netdev_priv(ndev);
+	u32 *reg = p;
+
+	/* update CPSW IP version */
+	regs->version = priv->version;
+
+	cpsw_ale_dump(priv->ale, reg);
+}
+
 static void cpsw_get_drvinfo(struct net_device *ndev,
 			     struct ethtool_drvinfo *info)
 {
 	struct cpsw_priv *priv = netdev_priv(ndev);
 
-	strlcpy(info->driver, "TI CPSW Driver v1.0", sizeof(info->driver));
+	strlcpy(info->driver, "cpsw", sizeof(info->driver));
 	strlcpy(info->version, "1.0", sizeof(info->version));
 	strlcpy(info->bus_info, priv->pdev->name, sizeof(info->bus_info));
+	info->regdump_len = cpsw_get_regs_len(ndev);
 }
 
 static u32 cpsw_get_msglevel(struct net_device *ndev)
@@ -1786,6 +1799,8 @@ static const struct ethtool_ops cpsw_ethtool_ops = {
 	.get_ethtool_stats	= cpsw_get_ethtool_stats,
 	.get_wol	= cpsw_get_wol,
 	.set_wol	= cpsw_set_wol,
+	.get_regs_len	= cpsw_get_regs_len,
+	.get_regs	= cpsw_get_regs,
 };
 
 static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv,