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  bridge: Update outdated comment on promiscuous mode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, 401 insertions, 88 deletions

diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 5776e50..6f4e186 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -81,14 +81,14 @@ static inline void dma_desc_set_addr(struct bcm_sysport_priv *priv,
 {
 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 	__raw_writel(upper_32_bits(addr) & DESC_ADDR_HI_MASK,
-			d + DESC_ADDR_HI_STATUS_LEN);
+		     d + DESC_ADDR_HI_STATUS_LEN);
 #endif
 	__raw_writel(lower_32_bits(addr), d + DESC_ADDR_LO);
 }
 
 static inline void tdma_port_write_desc_addr(struct bcm_sysport_priv *priv,
-						struct dma_desc *desc,
-						unsigned int port)
+					     struct dma_desc *desc,
+					     unsigned int port)
 {
 	/* Ports are latched, so write upper address first */
 	tdma_writel(priv, desc->addr_status_len, TDMA_WRITE_PORT_HI(port));
@@ -108,7 +108,7 @@ static int bcm_sysport_set_settings(struct net_device *dev,
 }
 
 static int bcm_sysport_get_settings(struct net_device *dev,
-					struct ethtool_cmd *cmd)
+				    struct ethtool_cmd *cmd)
 {
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
 
@@ -119,14 +119,14 @@ static int bcm_sysport_get_settings(struct net_device *dev,
 }
 
 static int bcm_sysport_set_rx_csum(struct net_device *dev,
-					netdev_features_t wanted)
+				   netdev_features_t wanted)
 {
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
 	u32 reg;
 
-	priv->rx_csum_en = !!(wanted & NETIF_F_RXCSUM);
+	priv->rx_chk_en = !!(wanted & NETIF_F_RXCSUM);
 	reg = rxchk_readl(priv, RXCHK_CONTROL);
-	if (priv->rx_csum_en)
+	if (priv->rx_chk_en)
 		reg |= RXCHK_EN;
 	else
 		reg &= ~RXCHK_EN;
@@ -134,7 +134,7 @@ static int bcm_sysport_set_rx_csum(struct net_device *dev,
 	/* If UniMAC forwards CRC, we need to skip over it to get
 	 * a valid CHK bit to be set in the per-packet status word
 	 */
-	if (priv->rx_csum_en && priv->crc_fwd)
+	if (priv->rx_chk_en && priv->crc_fwd)
 		reg |= RXCHK_SKIP_FCS;
 	else
 		reg &= ~RXCHK_SKIP_FCS;
@@ -145,7 +145,7 @@ static int bcm_sysport_set_rx_csum(struct net_device *dev,
 }
 
 static int bcm_sysport_set_tx_csum(struct net_device *dev,
-					netdev_features_t wanted)
+				   netdev_features_t wanted)
 {
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
 	u32 reg;
@@ -165,7 +165,7 @@ static int bcm_sysport_set_tx_csum(struct net_device *dev,
 }
 
 static int bcm_sysport_set_features(struct net_device *dev,
-					netdev_features_t features)
+				    netdev_features_t features)
 {
 	netdev_features_t changed = features ^ dev->features;
 	netdev_features_t wanted = dev->wanted_features;
@@ -261,7 +261,7 @@ static const struct bcm_sysport_stats bcm_sysport_gstrings_stats[] = {
 	/* RXCHK misc statistics */
 	STAT_RXCHK("rxchk_bad_csum", mib.rxchk_bad_csum, RXCHK_BAD_CSUM_CNTR),
 	STAT_RXCHK("rxchk_other_pkt_disc", mib.rxchk_other_pkt_disc,
-			RXCHK_OTHER_DISC_CNTR),
+		   RXCHK_OTHER_DISC_CNTR),
 	/* RBUF misc statistics */
 	STAT_RBUF("rbuf_ovflow_cnt", mib.rbuf_ovflow_cnt, RBUF_OVFL_DISC_CNTR),
 	STAT_RBUF("rbuf_err_cnt", mib.rbuf_err_cnt, RBUF_ERR_PKT_CNTR),
@@ -270,7 +270,7 @@ static const struct bcm_sysport_stats bcm_sysport_gstrings_stats[] = {
 #define BCM_SYSPORT_STATS_LEN	ARRAY_SIZE(bcm_sysport_gstrings_stats)
 
 static void bcm_sysport_get_drvinfo(struct net_device *dev,
-					struct ethtool_drvinfo *info)
+				    struct ethtool_drvinfo *info)
 {
 	strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
 	strlcpy(info->version, "0.1", sizeof(info->version));
@@ -303,7 +303,7 @@ static int bcm_sysport_get_sset_count(struct net_device *dev, int string_set)
 }
 
 static void bcm_sysport_get_strings(struct net_device *dev,
-					u32 stringset, u8 *data)
+				    u32 stringset, u8 *data)
 {
 	int i;
 
@@ -311,8 +311,8 @@ static void bcm_sysport_get_strings(struct net_device *dev,
 	case ETH_SS_STATS:
 		for (i = 0; i < BCM_SYSPORT_STATS_LEN; i++) {
 			memcpy(data + i * ETH_GSTRING_LEN,
-				bcm_sysport_gstrings_stats[i].stat_string,
-				ETH_GSTRING_LEN);
+			       bcm_sysport_gstrings_stats[i].stat_string,
+			       ETH_GSTRING_LEN);
 		}
 		break;
 	default:
@@ -362,7 +362,7 @@ static void bcm_sysport_update_mib_counters(struct bcm_sysport_priv *priv)
 }
 
 static void bcm_sysport_get_stats(struct net_device *dev,
-					struct ethtool_stats *stats, u64 *data)
+				  struct ethtool_stats *stats, u64 *data)
 {
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
 	int i;
@@ -384,6 +384,64 @@ static void bcm_sysport_get_stats(struct net_device *dev,
 	}
 }
 
+static void bcm_sysport_get_wol(struct net_device *dev,
+				struct ethtool_wolinfo *wol)
+{
+	struct bcm_sysport_priv *priv = netdev_priv(dev);
+	u32 reg;
+
+	wol->supported = WAKE_MAGIC | WAKE_MAGICSECURE;
+	wol->wolopts = priv->wolopts;
+
+	if (!(priv->wolopts & WAKE_MAGICSECURE))
+		return;
+
+	/* Return the programmed SecureOn password */
+	reg = umac_readl(priv, UMAC_PSW_MS);
+	put_unaligned_be16(reg, &wol->sopass[0]);
+	reg = umac_readl(priv, UMAC_PSW_LS);
+	put_unaligned_be32(reg, &wol->sopass[2]);
+}
+
+static int bcm_sysport_set_wol(struct net_device *dev,
+			       struct ethtool_wolinfo *wol)
+{
+	struct bcm_sysport_priv *priv = netdev_priv(dev);
+	struct device *kdev = &priv->pdev->dev;
+	u32 supported = WAKE_MAGIC | WAKE_MAGICSECURE;
+
+	if (!device_can_wakeup(kdev))
+		return -ENOTSUPP;
+
+	if (wol->wolopts & ~supported)
+		return -EINVAL;
+
+	/* Program the SecureOn password */
+	if (wol->wolopts & WAKE_MAGICSECURE) {
+		umac_writel(priv, get_unaligned_be16(&wol->sopass[0]),
+			    UMAC_PSW_MS);
+		umac_writel(priv, get_unaligned_be32(&wol->sopass[2]),
+			    UMAC_PSW_LS);
+	}
+
+	/* Flag the device and relevant IRQ as wakeup capable */
+	if (wol->wolopts) {
+		device_set_wakeup_enable(kdev, 1);
+		enable_irq_wake(priv->wol_irq);
+		priv->wol_irq_disabled = 0;
+	} else {
+		device_set_wakeup_enable(kdev, 0);
+		/* Avoid unbalanced disable_irq_wake calls */
+		if (!priv->wol_irq_disabled)
+			disable_irq_wake(priv->wol_irq);
+		priv->wol_irq_disabled = 1;
+	}
+
+	priv->wolopts = wol->wolopts;
+
+	return 0;
+}
+
 static void bcm_sysport_free_cb(struct bcm_sysport_cb *cb)
 {
 	dev_kfree_skb_any(cb->skb);
@@ -406,7 +464,7 @@ static int bcm_sysport_rx_refill(struct bcm_sysport_priv *priv,
 	}
 
 	mapping = dma_map_single(kdev, cb->skb->data,
-				RX_BUF_LENGTH, DMA_FROM_DEVICE);
+				 RX_BUF_LENGTH, DMA_FROM_DEVICE);
 	ret = dma_mapping_error(kdev, mapping);
 	if (ret) {
 		bcm_sysport_free_cb(cb);
@@ -470,22 +528,20 @@ static unsigned int bcm_sysport_desc_rx(struct bcm_sysport_priv *priv,
 		to_process = p_index - priv->rx_c_index;
 
 	netif_dbg(priv, rx_status, ndev,
-			"p_index=%d rx_c_index=%d to_process=%d\n",
-			p_index, priv->rx_c_index, to_process);
-
-	while ((processed < to_process) &&
-		(processed < budget)) {
+		  "p_index=%d rx_c_index=%d to_process=%d\n",
+		  p_index, priv->rx_c_index, to_process);
 
+	while ((processed < to_process) && (processed < budget)) {
 		cb = &priv->rx_cbs[priv->rx_read_ptr];
 		skb = cb->skb;
 		dma_unmap_single(kdev, dma_unmap_addr(cb, dma_addr),
-				RX_BUF_LENGTH, DMA_FROM_DEVICE);
+				 RX_BUF_LENGTH, DMA_FROM_DEVICE);
 
 		/* Extract the Receive Status Block prepended */
 		rsb = (struct bcm_rsb *)skb->data;
 		len = (rsb->rx_status_len >> DESC_LEN_SHIFT) & DESC_LEN_MASK;
 		status = (rsb->rx_status_len >> DESC_STATUS_SHIFT) &
-			DESC_STATUS_MASK;
+			  DESC_STATUS_MASK;
 
 		processed++;
 		priv->rx_read_ptr++;
@@ -493,9 +549,9 @@ static unsigned int bcm_sysport_desc_rx(struct bcm_sysport_priv *priv,
 			priv->rx_read_ptr = 0;
 
 		netif_dbg(priv, rx_status, ndev,
-				"p=%d, c=%d, rd_ptr=%d, len=%d, flag=0x%04x\n",
-				p_index, priv->rx_c_index, priv->rx_read_ptr,
-				len, status);
+			  "p=%d, c=%d, rd_ptr=%d, len=%d, flag=0x%04x\n",
+			  p_index, priv->rx_c_index, priv->rx_read_ptr,
+			  len, status);
 
 		if (unlikely(!skb)) {
 			netif_err(priv, rx_err, ndev, "out of memory!\n");
@@ -554,9 +610,9 @@ refill:
 }
 
 static void bcm_sysport_tx_reclaim_one(struct bcm_sysport_priv *priv,
-					struct bcm_sysport_cb *cb,
-					unsigned int *bytes_compl,
-					unsigned int *pkts_compl)
+				       struct bcm_sysport_cb *cb,
+				       unsigned int *bytes_compl,
+				       unsigned int *pkts_compl)
 {
 	struct device *kdev = &priv->pdev->dev;
 	struct net_device *ndev = priv->netdev;
@@ -565,8 +621,8 @@ static void bcm_sysport_tx_reclaim_one(struct bcm_sysport_priv *priv,
 		ndev->stats.tx_bytes += cb->skb->len;
 		*bytes_compl += cb->skb->len;
 		dma_unmap_single(kdev, dma_unmap_addr(cb, dma_addr),
-				dma_unmap_len(cb, dma_len),
-				DMA_TO_DEVICE);
+				 dma_unmap_len(cb, dma_len),
+				 DMA_TO_DEVICE);
 		ndev->stats.tx_packets++;
 		(*pkts_compl)++;
 		bcm_sysport_free_cb(cb);
@@ -574,7 +630,7 @@ static void bcm_sysport_tx_reclaim_one(struct bcm_sysport_priv *priv,
 	} else if (dma_unmap_addr(cb, dma_addr)) {
 		ndev->stats.tx_bytes += dma_unmap_len(cb, dma_len);
 		dma_unmap_page(kdev, dma_unmap_addr(cb, dma_addr),
-				dma_unmap_len(cb, dma_len), DMA_TO_DEVICE);
+			       dma_unmap_len(cb, dma_len), DMA_TO_DEVICE);
 		dma_unmap_addr_set(cb, dma_addr, 0);
 	}
 }
@@ -608,8 +664,8 @@ static unsigned int __bcm_sysport_tx_reclaim(struct bcm_sysport_priv *priv,
 		last_tx_cn = num_tx_cbs - last_c_index + c_index;
 
 	netif_dbg(priv, tx_done, ndev,
-			"ring=%d c_index=%d last_tx_cn=%d last_c_index=%d\n",
-			ring->index, c_index, last_tx_cn, last_c_index);
+		  "ring=%d c_index=%d last_tx_cn=%d last_c_index=%d\n",
+		  ring->index, c_index, last_tx_cn, last_c_index);
 
 	while (last_tx_cn-- > 0) {
 		cb = ring->cbs + last_c_index;
@@ -626,8 +682,8 @@ static unsigned int __bcm_sysport_tx_reclaim(struct bcm_sysport_priv *priv,
 		netif_tx_wake_queue(txq);
 
 	netif_dbg(priv, tx_done, ndev,
-			"ring=%d c_index=%d pkts_compl=%d, bytes_compl=%d\n",
-			ring->index, ring->c_index, pkts_compl, bytes_compl);
+		  "ring=%d c_index=%d pkts_compl=%d, bytes_compl=%d\n",
+		  ring->index, ring->c_index, pkts_compl, bytes_compl);
 
 	return pkts_compl;
 }
@@ -692,6 +748,20 @@ static int bcm_sysport_poll(struct napi_struct *napi, int budget)
 	return work_done;
 }
 
+static void bcm_sysport_resume_from_wol(struct bcm_sysport_priv *priv)
+{
+	u32 reg;
+
+	/* Stop monitoring MPD interrupt */
+	intrl2_0_mask_set(priv, INTRL2_0_MPD);
+
+	/* Clear the MagicPacket detection logic */
+	reg = umac_readl(priv, UMAC_MPD_CTRL);
+	reg &= ~MPD_EN;
+	umac_writel(priv, reg, UMAC_MPD_CTRL);
+
+	netif_dbg(priv, wol, priv->netdev, "resumed from WOL\n");
+}
 
 /* RX and misc interrupt routine */
 static irqreturn_t bcm_sysport_rx_isr(int irq, void *dev_id)
@@ -722,6 +792,11 @@ static irqreturn_t bcm_sysport_rx_isr(int irq, void *dev_id)
 	if (priv->irq0_stat & INTRL2_0_TX_RING_FULL)
 		bcm_sysport_tx_reclaim_all(priv);
 
+	if (priv->irq0_stat & INTRL2_0_MPD) {
+		netdev_info(priv->netdev, "Wake-on-LAN interrupt!\n");
+		bcm_sysport_resume_from_wol(priv);
+	}
+
 	return IRQ_HANDLED;
 }
 
@@ -757,6 +832,15 @@ static irqreturn_t bcm_sysport_tx_isr(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t bcm_sysport_wol_isr(int irq, void *dev_id)
+{
+	struct bcm_sysport_priv *priv = dev_id;
+
+	pm_wakeup_event(&priv->pdev->dev, 0);
+
+	return IRQ_HANDLED;
+}
+
 static int bcm_sysport_insert_tsb(struct sk_buff *skb, struct net_device *dev)
 {
 	struct sk_buff *nskb;
@@ -804,8 +888,9 @@ static int bcm_sysport_insert_tsb(struct sk_buff *skb, struct net_device *dev)
 			csum_info |= L4_LENGTH_VALID;
 			if (ip_proto == IPPROTO_UDP && ip_ver == ETH_P_IP)
 				csum_info |= L4_UDP;
-		} else
+		} else {
 			csum_info = 0;
+		}
 
 		tsb->l4_ptr_dest_map = csum_info;
 	}
@@ -869,7 +954,7 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb,
 	mapping = dma_map_single(kdev, skb->data, skb_len, DMA_TO_DEVICE);
 	if (dma_mapping_error(kdev, mapping)) {
 		netif_err(priv, tx_err, dev, "DMA map failed at %p (len=%d)\n",
-				skb->data, skb_len);
+			  skb->data, skb_len);
 		ret = NETDEV_TX_OK;
 		goto out;
 	}
@@ -887,7 +972,7 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb,
 	len_status = upper_32_bits(mapping) & DESC_ADDR_HI_MASK;
 	len_status |= (skb_len << DESC_LEN_SHIFT);
 	len_status |= (DESC_SOP | DESC_EOP | TX_STATUS_APP_CRC) <<
-			DESC_STATUS_SHIFT;
+		       DESC_STATUS_SHIFT;
 	if (skb->ip_summed == CHECKSUM_PARTIAL)
 		len_status |= (DESC_L4_CSUM << DESC_STATUS_SHIFT);
 
@@ -912,7 +997,7 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb,
 		netif_tx_stop_queue(txq);
 
 	netif_dbg(priv, tx_queued, dev, "ring=%d desc_count=%d, curr_desc=%d\n",
-			ring->index, ring->desc_count, ring->curr_desc);
+		  ring->index, ring->desc_count, ring->curr_desc);
 
 	ret = NETDEV_TX_OK;
 out:
@@ -1010,7 +1095,7 @@ static int bcm_sysport_init_tx_ring(struct bcm_sysport_priv *priv,
 		return -ENOMEM;
 	}
 
-	ring->cbs = kzalloc(sizeof(struct bcm_sysport_cb) * size, GFP_KERNEL);
+	ring->cbs = kcalloc(size, sizeof(struct bcm_sysport_cb), GFP_KERNEL);
 	if (!ring->cbs) {
 		netif_err(priv, hw, priv->netdev, "CB allocation failed\n");
 		return -ENOMEM;
@@ -1050,14 +1135,14 @@ static int bcm_sysport_init_tx_ring(struct bcm_sysport_priv *priv,
 	napi_enable(&ring->napi);
 
 	netif_dbg(priv, hw, priv->netdev,
-			"TDMA cfg, size=%d, desc_cpu=%p\n",
-			ring->size, ring->desc_cpu);
+		  "TDMA cfg, size=%d, desc_cpu=%p\n",
+		  ring->size, ring->desc_cpu);
 
 	return 0;
 }
 
 static void bcm_sysport_fini_tx_ring(struct bcm_sysport_priv *priv,
-					unsigned int index)
+				     unsigned int index)
 {
 	struct bcm_sysport_tx_ring *ring = &priv->tx_rings[index];
 	struct device *kdev = &priv->pdev->dev;
@@ -1088,7 +1173,7 @@ static void bcm_sysport_fini_tx_ring(struct bcm_sysport_priv *priv,
 
 /* RDMA helper */
 static inline int rdma_enable_set(struct bcm_sysport_priv *priv,
-					unsigned int enable)
+				  unsigned int enable)
 {
 	unsigned int timeout = 1000;
 	u32 reg;
@@ -1115,7 +1200,7 @@ static inline int rdma_enable_set(struct bcm_sysport_priv *priv,
 
 /* TDMA helper */
 static inline int tdma_enable_set(struct bcm_sysport_priv *priv,
-					unsigned int enable)
+				  unsigned int enable)
 {
 	unsigned int timeout = 1000;
 	u32 reg;
@@ -1153,8 +1238,8 @@ static int bcm_sysport_init_rx_ring(struct bcm_sysport_priv *priv)
 	priv->rx_bd_assign_index = 0;
 	priv->rx_c_index = 0;
 	priv->rx_read_ptr = 0;
-	priv->rx_cbs = kzalloc(priv->num_rx_bds *
-				sizeof(struct bcm_sysport_cb), GFP_KERNEL);
+	priv->rx_cbs = kcalloc(priv->num_rx_bds, sizeof(struct bcm_sysport_cb),
+				GFP_KERNEL);
 	if (!priv->rx_cbs) {
 		netif_err(priv, hw, priv->netdev, "CB allocation failed\n");
 		return -ENOMEM;
@@ -1186,8 +1271,8 @@ static int bcm_sysport_init_rx_ring(struct bcm_sysport_priv *priv)
 	rdma_writel(priv, 1, RDMA_MBDONE_INTR);
 
 	netif_dbg(priv, hw, priv->netdev,
-			"RDMA cfg, num_rx_bds=%d, rx_bds=%p\n",
-			priv->num_rx_bds, priv->rx_bds);
+		  "RDMA cfg, num_rx_bds=%d, rx_bds=%p\n",
+		  priv->num_rx_bds, priv->rx_bds);
 
 	return 0;
 }
@@ -1207,8 +1292,8 @@ static void bcm_sysport_fini_rx_ring(struct bcm_sysport_priv *priv)
 		cb = &priv->rx_cbs[i];
 		if (dma_unmap_addr(cb, dma_addr))
 			dma_unmap_single(&priv->pdev->dev,
-					dma_unmap_addr(cb, dma_addr),
-					RX_BUF_LENGTH, DMA_FROM_DEVICE);
+					 dma_unmap_addr(cb, dma_addr),
+					 RX_BUF_LENGTH, DMA_FROM_DEVICE);
 		bcm_sysport_free_cb(cb);
 	}
 
@@ -1236,15 +1321,15 @@ static void bcm_sysport_set_rx_mode(struct net_device *dev)
 }
 
 static inline void umac_enable_set(struct bcm_sysport_priv *priv,
-					unsigned int enable)
+				   u32 mask, unsigned int enable)
 {
 	u32 reg;
 
 	reg = umac_readl(priv, UMAC_CMD);
 	if (enable)
-		reg |= CMD_RX_EN | CMD_TX_EN;
+		reg |= mask;
 	else
-		reg &= ~(CMD_RX_EN | CMD_TX_EN);
+		reg &= ~mask;
 	umac_writel(priv, reg, UMAC_CMD);
 
 	/* UniMAC stops on a packet boundary, wait for a full-sized packet
@@ -1268,7 +1353,7 @@ static inline void umac_reset(struct bcm_sysport_priv *priv)
 }
 
 static void umac_set_hw_addr(struct bcm_sysport_priv *priv,
-				unsigned char *addr)
+			     unsigned char *addr)
 {
 	umac_writel(priv, (addr[0] << 24) | (addr[1] << 16) |
 			(addr[2] << 8) | addr[3], UMAC_MAC0);
@@ -1284,11 +1369,35 @@ static void topctrl_flush(struct bcm_sysport_priv *priv)
 	topctrl_writel(priv, 0, TX_FLUSH_CNTL);
 }
 
+static void bcm_sysport_netif_start(struct net_device *dev)
+{
+	struct bcm_sysport_priv *priv = netdev_priv(dev);
+
+	/* Enable NAPI */
+	napi_enable(&priv->napi);
+
+	phy_start(priv->phydev);
+
+	/* Enable TX interrupts for the 32 TXQs */
+	intrl2_1_mask_clear(priv, 0xffffffff);
+
+	/* Last call before we start the real business */
+	netif_tx_start_all_queues(dev);
+}
+
+static void rbuf_init(struct bcm_sysport_priv *priv)
+{
+	u32 reg;
+
+	reg = rbuf_readl(priv, RBUF_CONTROL);
+	reg |= RBUF_4B_ALGN | RBUF_RSB_EN;
+	rbuf_writel(priv, reg, RBUF_CONTROL);
+}
+
 static int bcm_sysport_open(struct net_device *dev)
 {
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
 	unsigned int i;
-	u32 reg;
 	int ret;
 
 	/* Reset UniMAC */
@@ -1298,12 +1407,10 @@ static int bcm_sysport_open(struct net_device *dev)
 	topctrl_flush(priv);
 
 	/* Disable the UniMAC RX/TX */
-	umac_enable_set(priv, 0);
+	umac_enable_set(priv, CMD_RX_EN | CMD_TX_EN, 0);
 
 	/* Enable RBUF 2bytes alignment and Receive Status Block */
-	reg = rbuf_readl(priv, RBUF_CONTROL);
-	reg |= RBUF_4B_ALGN | RBUF_RSB_EN;
-	rbuf_writel(priv, reg, RBUF_CONTROL);
+	rbuf_init(priv);
 
 	/* Set maximum frame length */
 	umac_writel(priv, UMAC_MAX_MTU_SIZE, UMAC_MAX_FRAME_LEN);
@@ -1351,7 +1458,7 @@ static int bcm_sysport_open(struct net_device *dev)
 		ret = bcm_sysport_init_tx_ring(priv, i);
 		if (ret) {
 			netdev_err(dev, "failed to initialize TX ring %d\n",
-					i);
+				   i);
 			goto out_free_tx_ring;
 		}
 	}
@@ -1379,19 +1486,10 @@ static int bcm_sysport_open(struct net_device *dev)
 	if (ret)
 		goto out_clear_rx_int;
 
-	/* Enable NAPI */
-	napi_enable(&priv->napi);
-
 	/* Turn on UniMAC TX/RX */
-	umac_enable_set(priv, 1);
+	umac_enable_set(priv, CMD_RX_EN | CMD_TX_EN, 1);
 
-	phy_start(priv->phydev);
-
-	/* Enable TX interrupts for the 32 TXQs */
-	intrl2_1_mask_clear(priv, 0xffffffff);
-
-	/* Last call before we start the real business */
-	netif_tx_start_all_queues(dev);
+	bcm_sysport_netif_start(dev);
 
 	return 0;
 
@@ -1410,12 +1508,9 @@ out_phy_disconnect:
 	return ret;
 }
 
-static int bcm_sysport_stop(struct net_device *dev)
+static void bcm_sysport_netif_stop(struct net_device *dev)
 {
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
-	unsigned int i;
-	u32 reg;
-	int ret;
 
 	/* stop all software from updating hardware */
 	netif_tx_stop_all_queues(dev);
@@ -1427,11 +1522,18 @@ static int bcm_sysport_stop(struct net_device *dev)
 	intrl2_0_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
 	intrl2_1_mask_set(priv, 0xffffffff);
 	intrl2_1_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
+}
+
+static int bcm_sysport_stop(struct net_device *dev)
+{
+	struct bcm_sysport_priv *priv = netdev_priv(dev);
+	unsigned int i;
+	int ret;
+
+	bcm_sysport_netif_stop(dev);
 
 	/* Disable UniMAC RX */
-	reg = umac_readl(priv, UMAC_CMD);
-	reg &= ~CMD_RX_EN;
-	umac_writel(priv, reg, UMAC_CMD);
+	umac_enable_set(priv, CMD_RX_EN, 0);
 
 	ret = tdma_enable_set(priv, 0);
 	if (ret) {
@@ -1449,9 +1551,7 @@ static int bcm_sysport_stop(struct net_device *dev)
 	}
 
 	/* Disable UniMAC TX */
-	reg = umac_readl(priv, UMAC_CMD);
-	reg &= ~CMD_TX_EN;
-	umac_writel(priv, reg, UMAC_CMD);
+	umac_enable_set(priv, CMD_TX_EN, 0);
 
 	/* Free RX/TX rings SW structures */
 	for (i = 0; i < dev->num_tx_queues; i++)
@@ -1477,6 +1577,8 @@ static struct ethtool_ops bcm_sysport_ethtool_ops = {
 	.get_strings		= bcm_sysport_get_strings,
 	.get_ethtool_stats	= bcm_sysport_get_stats,
 	.get_sset_count		= bcm_sysport_get_sset_count,
+	.get_wol		= bcm_sysport_get_wol,
+	.set_wol		= bcm_sysport_set_wol,
 };
 
 static const struct net_device_ops bcm_sysport_netdev_ops = {
@@ -1518,6 +1620,7 @@ static int bcm_sysport_probe(struct platform_device *pdev)
 
 	priv->irq0 = platform_get_irq(pdev, 0);
 	priv->irq1 = platform_get_irq(pdev, 1);
+	priv->wol_irq = platform_get_irq(pdev, 2);
 	if (priv->irq0 <= 0 || priv->irq1 <= 0) {
 		dev_err(&pdev->dev, "invalid interrupts\n");
 		ret = -EINVAL;
@@ -1570,6 +1673,13 @@ static int bcm_sysport_probe(struct platform_device *pdev)
 	dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_HIGHDMA |
 				NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
 
+	/* Request the WOL interrupt and advertise suspend if available */
+	priv->wol_irq_disabled = 1;
+	ret = devm_request_irq(&pdev->dev, priv->wol_irq,
+			       bcm_sysport_wol_isr, 0, dev->name, priv);
+	if (!ret)
+		device_set_wakeup_capable(&pdev->dev, 1);
+
 	/* Set the needed headroom once and for all */
 	BUILD_BUG_ON(sizeof(struct bcm_tsb) != 8);
 	dev->needed_headroom += sizeof(struct bcm_tsb);
@@ -1585,10 +1695,10 @@ static int bcm_sysport_probe(struct platform_device *pdev)
 
 	priv->rev = topctrl_readl(priv, REV_CNTL) & REV_MASK;
 	dev_info(&pdev->dev,
-		"Broadcom SYSTEMPORT" REV_FMT
-		" at 0x%p (irqs: %d, %d, TXQs: %d, RXQs: %d)\n",
-		(priv->rev >> 8) & 0xff, priv->rev & 0xff,
-		priv->base, priv->irq0, priv->irq1, txq, rxq);
+		 "Broadcom SYSTEMPORT" REV_FMT
+		 " at 0x%p (irqs: %d, %d, TXQs: %d, RXQs: %d)\n",
+		 (priv->rev >> 8) & 0xff, priv->rev & 0xff,
+		 priv->base, priv->irq0, priv->irq1, txq, rxq);
 
 	return 0;
 err:
@@ -1610,6 +1720,208 @@ static int bcm_sysport_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int bcm_sysport_suspend_to_wol(struct bcm_sysport_priv *priv)
+{
+	struct net_device *ndev = priv->netdev;
+	unsigned int timeout = 1000;
+	u32 reg;
+
+	/* Password has already been programmed */
+	reg = umac_readl(priv, UMAC_MPD_CTRL);
+	reg |= MPD_EN;
+	reg &= ~PSW_EN;
+	if (priv->wolopts & WAKE_MAGICSECURE)
+		reg |= PSW_EN;
+	umac_writel(priv, reg, UMAC_MPD_CTRL);
+
+	/* Make sure RBUF entered WoL mode as result */
+	do {
+		reg = rbuf_readl(priv, RBUF_STATUS);
+		if (reg & RBUF_WOL_MODE)
+			break;
+
+		udelay(10);
+	} while (timeout-- > 0);
+
+	/* Do not leave the UniMAC RBUF matching only MPD packets */
+	if (!timeout) {
+		reg = umac_readl(priv, UMAC_MPD_CTRL);
+		reg &= ~MPD_EN;
+		umac_writel(priv, reg, UMAC_MPD_CTRL);
+		netif_err(priv, wol, ndev, "failed to enter WOL mode\n");
+		return -ETIMEDOUT;
+	}
+
+	/* UniMAC receive needs to be turned on */
+	umac_enable_set(priv, CMD_RX_EN, 1);
+
+	/* Enable the interrupt wake-up source */
+	intrl2_0_mask_clear(priv, INTRL2_0_MPD);
+
+	netif_dbg(priv, wol, ndev, "entered WOL mode\n");
+
+	return 0;
+}
+
+static int bcm_sysport_suspend(struct device *d)
+{
+	struct net_device *dev = dev_get_drvdata(d);
+	struct bcm_sysport_priv *priv = netdev_priv(dev);
+	unsigned int i;
+	int ret = 0;
+	u32 reg;
+
+	if (!netif_running(dev))
+		return 0;
+
+	bcm_sysport_netif_stop(dev);
+
+	phy_suspend(priv->phydev);
+
+	netif_device_detach(dev);
+
+	/* Disable UniMAC RX */
+	umac_enable_set(priv, CMD_RX_EN, 0);
+
+	ret = rdma_enable_set(priv, 0);
+	if (ret) {
+		netdev_err(dev, "RDMA timeout!\n");
+		return ret;
+	}
+
+	/* Disable RXCHK if enabled */
+	if (priv->rx_chk_en) {
+		reg = rxchk_readl(priv, RXCHK_CONTROL);
+		reg &= ~RXCHK_EN;
+		rxchk_writel(priv, reg, RXCHK_CONTROL);
+	}
+
+	/* Flush RX pipe */
+	if (!priv->wolopts)
+		topctrl_writel(priv, RX_FLUSH, RX_FLUSH_CNTL);
+
+	ret = tdma_enable_set(priv, 0);
+	if (ret) {
+		netdev_err(dev, "TDMA timeout!\n");
+		return ret;
+	}
+
+	/* Wait for a packet boundary */
+	usleep_range(2000, 3000);
+
+	umac_enable_set(priv, CMD_TX_EN, 0);
+
+	topctrl_writel(priv, TX_FLUSH, TX_FLUSH_CNTL);
+
+	/* Free RX/TX rings SW structures */
+	for (i = 0; i < dev->num_tx_queues; i++)
+		bcm_sysport_fini_tx_ring(priv, i);
+	bcm_sysport_fini_rx_ring(priv);
+
+	/* Get prepared for Wake-on-LAN */
+	if (device_may_wakeup(d) && priv->wolopts)
+		ret = bcm_sysport_suspend_to_wol(priv);
+
+	return ret;
+}
+
+static int bcm_sysport_resume(struct device *d)
+{
+	struct net_device *dev = dev_get_drvdata(d);
+	struct bcm_sysport_priv *priv = netdev_priv(dev);
+	unsigned int i;
+	u32 reg;
+	int ret;
+
+	if (!netif_running(dev))
+		return 0;
+
+	/* We may have been suspended and never received a WOL event that
+	 * would turn off MPD detection, take care of that now
+	 */
+	bcm_sysport_resume_from_wol(priv);
+
+	/* Initialize both hardware and software ring */
+	for (i = 0; i < dev->num_tx_queues; i++) {
+		ret = bcm_sysport_init_tx_ring(priv, i);
+		if (ret) {
+			netdev_err(dev, "failed to initialize TX ring %d\n",
+				   i);
+			goto out_free_tx_rings;
+		}
+	}
+
+	/* Initialize linked-list */
+	tdma_writel(priv, TDMA_LL_RAM_INIT_BUSY, TDMA_STATUS);
+
+	/* Initialize RX ring */
+	ret = bcm_sysport_init_rx_ring(priv);
+	if (ret) {
+		netdev_err(dev, "failed to initialize RX ring\n");
+		goto out_free_rx_ring;
+	}
+
+	netif_device_attach(dev);
+
+	/* Enable RX interrupt and TX ring full interrupt */
+	intrl2_0_mask_clear(priv, INTRL2_0_RDMA_MBDONE | INTRL2_0_TX_RING_FULL);
+
+	/* RX pipe enable */
+	topctrl_writel(priv, 0, RX_FLUSH_CNTL);
+
+	ret = rdma_enable_set(priv, 1);
+	if (ret) {
+		netdev_err(dev, "failed to enable RDMA\n");
+		goto out_free_rx_ring;
+	}
+
+	/* Enable rxhck */
+	if (priv->rx_chk_en) {
+		reg = rxchk_readl(priv, RXCHK_CONTROL);
+		reg |= RXCHK_EN;
+		rxchk_writel(priv, reg, RXCHK_CONTROL);
+	}
+
+	rbuf_init(priv);
+
+	/* Set maximum frame length */
+	umac_writel(priv, UMAC_MAX_MTU_SIZE, UMAC_MAX_FRAME_LEN);
+
+	/* Set MAC address */
+	umac_set_hw_addr(priv, dev->dev_addr);
+
+	umac_enable_set(priv, CMD_RX_EN, 1);
+
+	/* TX pipe enable */
+	topctrl_writel(priv, 0, TX_FLUSH_CNTL);
+
+	umac_enable_set(priv, CMD_TX_EN, 1);
+
+	ret = tdma_enable_set(priv, 1);
+	if (ret) {
+		netdev_err(dev, "TDMA timeout!\n");
+		goto out_free_rx_ring;
+	}
+
+	phy_resume(priv->phydev);
+
+	bcm_sysport_netif_start(dev);
+
+	return 0;
+
+out_free_rx_ring:
+	bcm_sysport_fini_rx_ring(priv);
+out_free_tx_rings:
+	for (i = 0; i < dev->num_tx_queues; i++)
+		bcm_sysport_fini_tx_ring(priv, i);
+	return ret;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(bcm_sysport_pm_ops,
+		bcm_sysport_suspend, bcm_sysport_resume);
+
 static const struct of_device_id bcm_sysport_of_match[] = {
 	{ .compatible = "brcm,systemport-v1.00" },
 	{ .compatible = "brcm,systemport" },
@@ -1623,6 +1935,7 @@ static struct platform_driver bcm_sysport_driver = {
 		.name = "brcm-systemport",
 		.owner = THIS_MODULE,
 		.of_match_table = bcm_sysport_of_match,
+		.pm = &bcm_sysport_pm_ops,
 	},
 };
 module_platform_driver(bcm_sysport_driver);