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

Pull networking updates from David Miller:
 "Another merge window, another set of networking changes.  I've heard
  rumblings that the lightweight tunnels infrastructure has been voted
  networking change of the year.  But what do I know?

   1) Add conntrack support to openvswitch, from Joe Stringer.

   2) Initial support for VRF (Virtual Routing and Forwarding), which
      allows the segmentation of routing paths without using multiple
      devices.  There are some semantic kinks to work out still, but
      this is a reasonably strong foundation.  From David Ahern.

   3) Remove spinlock fro act_bpf fast path, from Alexei Starovoitov.

   4) Ignore route nexthops with a link down state in ipv6, just like
      ipv4.  From Andy Gospodarek.

   5) Remove spinlock from fast path of act_gact and act_mirred, from
      Eric Dumazet.

   6) Document the DSA layer, from Florian Fainelli.

   7) Add netconsole support to bcmgenet, systemport, and DSA.  Also
      from Florian Fainelli.

   8) Add Mellanox Switch Driver and core infrastructure, from Jiri
      Pirko.

   9) Add support for "light weight tunnels", which allow for
      encapsulation and decapsulation without bearing the overhead of a
      full blown netdevice.  From Thomas Graf, Jiri Benc, and a cast of
      others.

  10) Add Identifier Locator Addressing support for ipv6, from Tom
      Herbert.

  11) Support fragmented SKBs in iwlwifi, from Johannes Berg.

  12) Allow perf PMUs to be accessed from eBPF programs, from Kaixu Xia.

  13) Add BQL support to 3c59x driver, from Loganaden Velvindron.

  14) Stop using a zero TX queue length to mean that a device shouldn't
      have a qdisc attached, use an explicit flag instead.  From Phil
      Sutter.

  15) Use generic geneve netdevice infrastructure in openvswitch, from
      Pravin B Shelar.

  16) Add infrastructure to avoid re-forwarding a packet in software
      that was already forwarded by a hardware switch.  From Scott
      Feldman.

  17) Allow AF_PACKET fanout function to be implemented in a bpf
      program, from Willem de Bruijn"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1458 commits)
  netfilter: nf_conntrack: make nf_ct_zone_dflt built-in
  netfilter: nf_dup{4, 6}: fix build error when nf_conntrack disabled
  net: fec: clear receive interrupts before processing a packet
  ipv6: fix exthdrs offload registration in out_rt path
  xen-netback: add support for multicast control
  bgmac: Update fixed_phy_register()
  sock, diag: fix panic in sock_diag_put_filterinfo
  flow_dissector: Use 'const' where possible.
  flow_dissector: Fix function argument ordering dependency
  ixgbe: Resolve "initialized field overwritten" warnings
  ixgbe: Remove bimodal SR-IOV disabling
  ixgbe: Add support for reporting 2.5G link speed
  ixgbe: fix bounds checking in ixgbe_setup_tc for 82598
  ixgbe: support for ethtool set_rxfh
  ixgbe: Avoid needless PHY access on copper phys
  ixgbe: cleanup to use cached mask value
  ixgbe: Remove second instance of lan_id variable
  ixgbe: use kzalloc for allocating one thing
  flow: Move __get_hash_from_flowi{4,6} into flow_dissector.c
  ixgbe: Remove unused PCI bus types
  ...

1 files changed, 73 insertions, 69 deletions

diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 918a8e4..3352d02 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1149,6 +1149,64 @@ static int enic_rq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
 	return 0;
 }
 
+static void enic_set_int_moderation(struct enic *enic, struct vnic_rq *rq)
+{
+	unsigned int intr = enic_msix_rq_intr(enic, rq->index);
+	struct vnic_cq *cq = &enic->cq[enic_cq_rq(enic, rq->index)];
+	u32 timer = cq->tobe_rx_coal_timeval;
+
+	if (cq->tobe_rx_coal_timeval != cq->cur_rx_coal_timeval) {
+		vnic_intr_coalescing_timer_set(&enic->intr[intr], timer);
+		cq->cur_rx_coal_timeval = cq->tobe_rx_coal_timeval;
+	}
+}
+
+static void enic_calc_int_moderation(struct enic *enic, struct vnic_rq *rq)
+{
+	struct enic_rx_coal *rx_coal = &enic->rx_coalesce_setting;
+	struct vnic_cq *cq = &enic->cq[enic_cq_rq(enic, rq->index)];
+	struct vnic_rx_bytes_counter *pkt_size_counter = &cq->pkt_size_counter;
+	int index;
+	u32 timer;
+	u32 range_start;
+	u32 traffic;
+	u64 delta;
+	ktime_t now = ktime_get();
+
+	delta = ktime_us_delta(now, cq->prev_ts);
+	if (delta < ENIC_AIC_TS_BREAK)
+		return;
+	cq->prev_ts = now;
+
+	traffic = pkt_size_counter->large_pkt_bytes_cnt +
+		  pkt_size_counter->small_pkt_bytes_cnt;
+	/* The table takes Mbps
+	 * traffic *= 8    => bits
+	 * traffic *= (10^6 / delta)    => bps
+	 * traffic /= 10^6     => Mbps
+	 *
+	 * Combining, traffic *= (8 / delta)
+	 */
+
+	traffic <<= 3;
+	traffic = delta > UINT_MAX ? 0 : traffic / (u32)delta;
+
+	for (index = 0; index < ENIC_MAX_COALESCE_TIMERS; index++)
+		if (traffic < mod_table[index].rx_rate)
+			break;
+	range_start = (pkt_size_counter->small_pkt_bytes_cnt >
+		       pkt_size_counter->large_pkt_bytes_cnt << 1) ?
+		      rx_coal->small_pkt_range_start :
+		      rx_coal->large_pkt_range_start;
+	timer = range_start + ((rx_coal->range_end - range_start) *
+			       mod_table[index].range_percent / 100);
+	/* Damping */
+	cq->tobe_rx_coal_timeval = (timer + cq->tobe_rx_coal_timeval) >> 1;
+
+	pkt_size_counter->large_pkt_bytes_cnt = 0;
+	pkt_size_counter->small_pkt_bytes_cnt = 0;
+}
+
 static int enic_poll(struct napi_struct *napi, int budget)
 {
 	struct net_device *netdev = napi->dev;
@@ -1199,6 +1257,11 @@ static int enic_poll(struct napi_struct *napi, int budget)
 
 	if (err)
 		rq_work_done = rq_work_to_do;
+	if (enic->rx_coalesce_setting.use_adaptive_rx_coalesce)
+		/* Call the function which refreshes the intr coalescing timer
+		 * value based on the traffic.
+		 */
+		enic_calc_int_moderation(enic, &enic->rq[0]);
 
 	if (rq_work_done < rq_work_to_do) {
 
@@ -1207,70 +1270,14 @@ static int enic_poll(struct napi_struct *napi, int budget)
 		 */
 
 		napi_complete(napi);
+		if (enic->rx_coalesce_setting.use_adaptive_rx_coalesce)
+			enic_set_int_moderation(enic, &enic->rq[0]);
 		vnic_intr_unmask(&enic->intr[intr]);
 	}
 
 	return rq_work_done;
 }
 
-static void enic_set_int_moderation(struct enic *enic, struct vnic_rq *rq)
-{
-	unsigned int intr = enic_msix_rq_intr(enic, rq->index);
-	struct vnic_cq *cq = &enic->cq[enic_cq_rq(enic, rq->index)];
-	u32 timer = cq->tobe_rx_coal_timeval;
-
-	if (cq->tobe_rx_coal_timeval != cq->cur_rx_coal_timeval) {
-		vnic_intr_coalescing_timer_set(&enic->intr[intr], timer);
-		cq->cur_rx_coal_timeval = cq->tobe_rx_coal_timeval;
-	}
-}
-
-static void enic_calc_int_moderation(struct enic *enic, struct vnic_rq *rq)
-{
-	struct enic_rx_coal *rx_coal = &enic->rx_coalesce_setting;
-	struct vnic_cq *cq = &enic->cq[enic_cq_rq(enic, rq->index)];
-	struct vnic_rx_bytes_counter *pkt_size_counter = &cq->pkt_size_counter;
-	int index;
-	u32 timer;
-	u32 range_start;
-	u32 traffic;
-	u64 delta;
-	ktime_t now = ktime_get();
-
-	delta = ktime_us_delta(now, cq->prev_ts);
-	if (delta < ENIC_AIC_TS_BREAK)
-		return;
-	cq->prev_ts = now;
-
-	traffic = pkt_size_counter->large_pkt_bytes_cnt +
-		  pkt_size_counter->small_pkt_bytes_cnt;
-	/* The table takes Mbps
-	 * traffic *= 8    => bits
-	 * traffic *= (10^6 / delta)    => bps
-	 * traffic /= 10^6     => Mbps
-	 *
-	 * Combining, traffic *= (8 / delta)
-	 */
-
-	traffic <<= 3;
-	traffic = delta > UINT_MAX ? 0 : traffic / (u32)delta;
-
-	for (index = 0; index < ENIC_MAX_COALESCE_TIMERS; index++)
-		if (traffic < mod_table[index].rx_rate)
-			break;
-	range_start = (pkt_size_counter->small_pkt_bytes_cnt >
-		       pkt_size_counter->large_pkt_bytes_cnt << 1) ?
-		      rx_coal->small_pkt_range_start :
-		      rx_coal->large_pkt_range_start;
-	timer = range_start + ((rx_coal->range_end - range_start) *
-			       mod_table[index].range_percent / 100);
-	/* Damping */
-	cq->tobe_rx_coal_timeval = (timer + cq->tobe_rx_coal_timeval) >> 1;
-
-	pkt_size_counter->large_pkt_bytes_cnt = 0;
-	pkt_size_counter->small_pkt_bytes_cnt = 0;
-}
-
 #ifdef CONFIG_RFS_ACCEL
 static void enic_free_rx_cpu_rmap(struct enic *enic)
 {
@@ -1407,10 +1414,8 @@ static int enic_poll_msix_rq(struct napi_struct *napi, int budget)
 	if (err)
 		work_done = work_to_do;
 	if (enic->rx_coalesce_setting.use_adaptive_rx_coalesce)
-		/* Call the function which refreshes
-		 * the intr coalescing timer value based on
-		 * the traffic.  This is supported only in
-		 * the case of MSI-x mode
+		/* Call the function which refreshes the intr coalescing timer
+		 * value based on the traffic.
 		 */
 		enic_calc_int_moderation(enic, &enic->rq[rq]);
 
@@ -1569,12 +1574,6 @@ static void enic_set_rx_coal_setting(struct enic *enic)
 	int index = -1;
 	struct enic_rx_coal *rx_coal = &enic->rx_coalesce_setting;
 
-	/* If intr mode is not MSIX, do not do adaptive coalescing */
-	if (VNIC_DEV_INTR_MODE_MSIX != vnic_dev_get_intr_mode(enic->vdev)) {
-		netdev_info(enic->netdev, "INTR mode is not MSIX, Not initializing adaptive coalescing");
-		return;
-	}
-
 	/* 1. Read the link speed from fw
 	 * 2. Pick the default range for the speed
 	 * 3. Update it in enic->rx_coalesce_setting
@@ -2485,6 +2484,11 @@ static int enic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto err_out_iounmap;
 	}
 
+	err = vnic_devcmd_init(enic->vdev);
+
+	if (err)
+		goto err_out_vnic_unregister;
+
 #ifdef CONFIG_PCI_IOV
 	/* Get number of subvnics */
 	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
@@ -2659,8 +2663,8 @@ err_out_disable_sriov_pp:
 		pci_disable_sriov(pdev);
 		enic->priv_flags &= ~ENIC_SRIOV_ENABLED;
 	}
-err_out_vnic_unregister:
 #endif
+err_out_vnic_unregister:
 	vnic_dev_unregister(enic->vdev);
 err_out_iounmap:
 	enic_iounmap(enic);