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

Pull networking updates from David Miller:
 "Highlights:

   1) Support SPI based w5100 devices, from Akinobu Mita.

   2) Partial Segmentation Offload, from Alexander Duyck.

   3) Add GMAC4 support to stmmac driver, from Alexandre TORGUE.

   4) Allow cls_flower stats offload, from Amir Vadai.

   5) Implement bpf blinding, from Daniel Borkmann.

   6) Optimize _ASYNC_ bit twiddling on sockets, unless the socket is
      actually using FASYNC these atomics are superfluous.  From Eric
      Dumazet.

   7) Run TCP more preemptibly, also from Eric Dumazet.

   8) Support LED blinking, EEPROM dumps, and rxvlan offloading in mlx5e
      driver, from Gal Pressman.

   9) Allow creating ppp devices via rtnetlink, from Guillaume Nault.

  10) Improve BPF usage documentation, from Jesper Dangaard Brouer.

  11) Support tunneling offloads in qed, from Manish Chopra.

  12) aRFS offloading in mlx5e, from Maor Gottlieb.

  13) Add RFS and RPS support to SCTP protocol, from Marcelo Ricardo
      Leitner.

  14) Add MSG_EOR support to TCP, this allows controlling packet
      coalescing on application record boundaries for more accurate
      socket timestamp sampling.  From Martin KaFai Lau.

  15) Fix alignment of 64-bit netlink attributes across the board, from
      Nicolas Dichtel.

  16) Per-vlan stats in bridging, from Nikolay Aleksandrov.

  17) Several conversions of drivers to ethtool ksettings, from Philippe
      Reynes.

  18) Checksum neutral ILA in ipv6, from Tom Herbert.

  19) Factorize all of the various marvell dsa drivers into one, from
      Vivien Didelot

  20) Add VF support to qed driver, from Yuval Mintz"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1649 commits)
  Revert "phy dp83867: Fix compilation with CONFIG_OF_MDIO=m"
  Revert "phy dp83867: Make rgmii parameters optional"
  r8169: default to 64-bit DMA on recent PCIe chips
  phy dp83867: Make rgmii parameters optional
  phy dp83867: Fix compilation with CONFIG_OF_MDIO=m
  bpf: arm64: remove callee-save registers use for tmp registers
  asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
  switchdev: pass pointer to fib_info instead of copy
  net_sched: close another race condition in tcf_mirred_release()
  tipc: fix nametable publication field in nl compat
  drivers: net: Don't print unpopulated net_device name
  qed: add support for dcbx.
  ravb: Add missing free_irq() calls to ravb_close()
  qed: Remove a stray tab
  net: ethernet: fec-mpc52xx: use phy_ethtool_{get|set}_link_ksettings
  net: ethernet: fec-mpc52xx: use phydev from struct net_device
  bpf, doc: fix typo on bpf_asm descriptions
  stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set
  net: ethernet: fs-enet: use phy_ethtool_{get|set}_link_ksettings
  net: ethernet: fs-enet: use phydev from struct net_device
  ...

1 files changed, 49 insertions, 42 deletions

diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index c7d1adca30d8..16737cd8dae8 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -90,7 +90,8 @@ static void hsr_check_announce(struct net_device *hsr_dev,
 
 	hsr = netdev_priv(hsr_dev);
 
-	if ((hsr_dev->operstate == IF_OPER_UP) && (old_operstate != IF_OPER_UP)) {
+	if ((hsr_dev->operstate == IF_OPER_UP)
+			&& (old_operstate != IF_OPER_UP)) {
 		/* Went up */
 		hsr->announce_count = 0;
 		hsr->announce_timer.expires = jiffies +
@@ -250,31 +251,22 @@ static const struct header_ops hsr_header_ops = {
 	.parse	 = eth_header_parse,
 };
 
-
-/* HSR:2010 supervision frames should be padded so that the whole frame,
- * including headers and FCS, is 64 bytes (without VLAN).
- */
-static int hsr_pad(int size)
-{
-	const int min_size = ETH_ZLEN - HSR_HLEN - ETH_HLEN;
-
-	if (size >= min_size)
-		return size;
-	return min_size;
-}
-
-static void send_hsr_supervision_frame(struct hsr_port *master, u8 type)
+static void send_hsr_supervision_frame(struct hsr_port *master,
+		u8 type, u8 hsrVer)
 {
 	struct sk_buff *skb;
 	int hlen, tlen;
+	struct hsr_tag *hsr_tag;
 	struct hsr_sup_tag *hsr_stag;
 	struct hsr_sup_payload *hsr_sp;
 	unsigned long irqflags;
 
 	hlen = LL_RESERVED_SPACE(master->dev);
 	tlen = master->dev->needed_tailroom;
-	skb = alloc_skb(hsr_pad(sizeof(struct hsr_sup_payload)) + hlen + tlen,
-			GFP_ATOMIC);
+	skb = dev_alloc_skb(
+			sizeof(struct hsr_tag) +
+			sizeof(struct hsr_sup_tag) +
+			sizeof(struct hsr_sup_payload) + hlen + tlen);
 
 	if (skb == NULL)
 		return;
@@ -282,32 +274,48 @@ static void send_hsr_supervision_frame(struct hsr_port *master, u8 type)
 	skb_reserve(skb, hlen);
 
 	skb->dev = master->dev;
-	skb->protocol = htons(ETH_P_PRP);
+	skb->protocol = htons(hsrVer ? ETH_P_HSR : ETH_P_PRP);
 	skb->priority = TC_PRIO_CONTROL;
 
-	if (dev_hard_header(skb, skb->dev, ETH_P_PRP,
+	if (dev_hard_header(skb, skb->dev, (hsrVer ? ETH_P_HSR : ETH_P_PRP),
 			    master->hsr->sup_multicast_addr,
 			    skb->dev->dev_addr, skb->len) <= 0)
 		goto out;
 	skb_reset_mac_header(skb);
 
-	hsr_stag = (typeof(hsr_stag)) skb_put(skb, sizeof(*hsr_stag));
+	if (hsrVer > 0) {
+		hsr_tag = (typeof(hsr_tag)) skb_put(skb, sizeof(struct hsr_tag));
+		hsr_tag->encap_proto = htons(ETH_P_PRP);
+		set_hsr_tag_LSDU_size(hsr_tag, HSR_V1_SUP_LSDUSIZE);
+	}
 
-	set_hsr_stag_path(hsr_stag, 0xf);
-	set_hsr_stag_HSR_Ver(hsr_stag, 0);
+	hsr_stag = (typeof(hsr_stag)) skb_put(skb, sizeof(struct hsr_sup_tag));
+	set_hsr_stag_path(hsr_stag, (hsrVer ? 0x0 : 0xf));
+	set_hsr_stag_HSR_Ver(hsr_stag, hsrVer);
 
+	/* From HSRv1 on we have separate supervision sequence numbers. */
 	spin_lock_irqsave(&master->hsr->seqnr_lock, irqflags);
-	hsr_stag->sequence_nr = htons(master->hsr->sequence_nr);
-	master->hsr->sequence_nr++;
+	if (hsrVer > 0) {
+		hsr_stag->sequence_nr = htons(master->hsr->sup_sequence_nr);
+		hsr_tag->sequence_nr = htons(master->hsr->sequence_nr);
+		master->hsr->sup_sequence_nr++;
+		master->hsr->sequence_nr++;
+	} else {
+		hsr_stag->sequence_nr = htons(master->hsr->sequence_nr);
+		master->hsr->sequence_nr++;
+	}
 	spin_unlock_irqrestore(&master->hsr->seqnr_lock, irqflags);
 
 	hsr_stag->HSR_TLV_Type = type;
-	hsr_stag->HSR_TLV_Length = 12;
+	/* TODO: Why 12 in HSRv0? */
+	hsr_stag->HSR_TLV_Length = hsrVer ? sizeof(struct hsr_sup_payload) : 12;
 
 	/* Payload: MacAddressA */
-	hsr_sp = (typeof(hsr_sp)) skb_put(skb, sizeof(*hsr_sp));
+	hsr_sp = (typeof(hsr_sp)) skb_put(skb, sizeof(struct hsr_sup_payload));
 	ether_addr_copy(hsr_sp->MacAddressA, master->dev->dev_addr);
 
+	skb_put_padto(skb, ETH_ZLEN + HSR_HLEN);
+
 	hsr_forward_skb(skb, master);
 	return;
 
@@ -329,19 +337,20 @@ static void hsr_announce(unsigned long data)
 	rcu_read_lock();
 	master = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
 
-	if (hsr->announce_count < 3) {
-		send_hsr_supervision_frame(master, HSR_TLV_ANNOUNCE);
+	if (hsr->announce_count < 3 && hsr->protVersion == 0) {
+		send_hsr_supervision_frame(master, HSR_TLV_ANNOUNCE,
+				hsr->protVersion);
 		hsr->announce_count++;
-	} else {
-		send_hsr_supervision_frame(master, HSR_TLV_LIFE_CHECK);
-	}
 
-	if (hsr->announce_count < 3)
 		hsr->announce_timer.expires = jiffies +
 				msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL);
-	else
+	} else {
+		send_hsr_supervision_frame(master, HSR_TLV_LIFE_CHECK,
+				hsr->protVersion);
+
 		hsr->announce_timer.expires = jiffies +
 				msecs_to_jiffies(HSR_LIFE_CHECK_INTERVAL);
+	}
 
 	if (is_admin_up(master->dev))
 		add_timer(&hsr->announce_timer);
@@ -428,7 +437,7 @@ static const unsigned char def_multicast_addr[ETH_ALEN] __aligned(2) = {
 };
 
 int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
-		     unsigned char multicast_spec)
+		     unsigned char multicast_spec, u8 protocol_version)
 {
 	struct hsr_priv *hsr;
 	struct hsr_port *port;
@@ -450,18 +459,17 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
 	spin_lock_init(&hsr->seqnr_lock);
 	/* Overflow soon to find bugs easier: */
 	hsr->sequence_nr = HSR_SEQNR_START;
+	hsr->sup_sequence_nr = HSR_SUP_SEQNR_START;
 
-	init_timer(&hsr->announce_timer);
-	hsr->announce_timer.function = hsr_announce;
-	hsr->announce_timer.data = (unsigned long) hsr;
+	setup_timer(&hsr->announce_timer, hsr_announce, (unsigned long)hsr);
 
-	init_timer(&hsr->prune_timer);
-	hsr->prune_timer.function = hsr_prune_nodes;
-	hsr->prune_timer.data = (unsigned long) hsr;
+	setup_timer(&hsr->prune_timer, hsr_prune_nodes, (unsigned long)hsr);
 
 	ether_addr_copy(hsr->sup_multicast_addr, def_multicast_addr);
 	hsr->sup_multicast_addr[ETH_ALEN - 1] = multicast_spec;
 
+	hsr->protVersion = protocol_version;
+
 	/* FIXME: should I modify the value of these?
 	 *
 	 * - hsr_dev->flags - i.e.
@@ -490,8 +498,7 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
 	if (res)
 		goto fail;
 
-	hsr->prune_timer.expires = jiffies + msecs_to_jiffies(PRUNE_PERIOD);
-	add_timer(&hsr->prune_timer);
+	mod_timer(&hsr->prune_timer, jiffies + msecs_to_jiffies(PRUNE_PERIOD));
 
 	return 0;