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

Pull networking updates from David Miller:

 1) Support ipv6 checksum offload in sunvnet driver, from Shannon
    Nelson.

 2) Move to RB-tree instead of custom AVL code in inetpeer, from Eric
    Dumazet.

 3) Allow generic XDP to work on virtual devices, from John Fastabend.

 4) Add bpf device maps and XDP_REDIRECT, which can be used to build
    arbitrary switching frameworks using XDP. From John Fastabend.

 5) Remove UFO offloads from the tree, gave us little other than bugs.

 6) Remove the IPSEC flow cache, from Florian Westphal.

 7) Support ipv6 route offload in mlxsw driver.

 8) Support VF representors in bnxt_en, from Sathya Perla.

 9) Add support for forward error correction modes to ethtool, from
    Vidya Sagar Ravipati.

10) Add time filter for packet scheduler action dumping, from Jamal Hadi
    Salim.

11) Extend the zerocopy sendmsg() used by virtio and tap to regular
    sockets via MSG_ZEROCOPY. From Willem de Bruijn.

12) Significantly rework value tracking in the BPF verifier, from Edward
    Cree.

13) Add new jump instructions to eBPF, from Daniel Borkmann.

14) Rework rtnetlink plumbing so that operations can be run without
    taking the RTNL semaphore. From Florian Westphal.

15) Support XDP in tap driver, from Jason Wang.

16) Add 32-bit eBPF JIT for ARM, from Shubham Bansal.

17) Add Huawei hinic ethernet driver.

18) Allow to report MD5 keys in TCP inet_diag dumps, from Ivan
    Delalande.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1780 commits)
  i40e: point wb_desc at the nvm_wb_desc during i40e_read_nvm_aq
  i40e: avoid NVM acquire deadlock during NVM update
  drivers: net: xgene: Remove return statement from void function
  drivers: net: xgene: Configure tx/rx delay for ACPI
  drivers: net: xgene: Read tx/rx delay for ACPI
  rocker: fix kcalloc parameter order
  rds: Fix non-atomic operation on shared flag variable
  net: sched: don't use GFP_KERNEL under spin lock
  vhost_net: correctly check tx avail during rx busy polling
  net: mdio-mux: add mdio_mux parameter to mdio_mux_init()
  rxrpc: Make service connection lookup always check for retry
  net: stmmac: Delete dead code for MDIO registration
  gianfar: Fix Tx flow control deactivation
  cxgb4: Ignore MPS_TX_INT_CAUSE[Bubble] for T6
  cxgb4: Fix pause frame count in t4_get_port_stats
  cxgb4: fix memory leak
  tun: rename generic_xdp to skb_xdp
  tun: reserve extra headroom only when XDP is set
  net: dsa: bcm_sf2: Configure IMP port TC2QOS mapping
  net: dsa: bcm_sf2: Advertise number of egress queues
  ...

1 files changed, 85 insertions, 26 deletions

diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index c28fa5a..a6572b5 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -32,13 +32,13 @@
 #define BCM_SYSPORT_IO_MACRO(name, offset) \
 static inline u32 name##_readl(struct bcm_sysport_priv *priv, u32 off)	\
 {									\
-	u32 reg = __raw_readl(priv->base + offset + off);		\
+	u32 reg = readl_relaxed(priv->base + offset + off);		\
 	return reg;							\
 }									\
 static inline void name##_writel(struct bcm_sysport_priv *priv,		\
 				  u32 val, u32 off)			\
 {									\
-	__raw_writel(val, priv->base + offset + off);			\
+	writel_relaxed(val, priv->base + offset + off);			\
 }									\
 
 BCM_SYSPORT_IO_MACRO(intrl2_0, SYS_PORT_INTRL2_0_OFFSET);
@@ -59,14 +59,14 @@ static inline u32 rdma_readl(struct bcm_sysport_priv *priv, u32 off)
 {
 	if (priv->is_lite && off >= RDMA_STATUS)
 		off += 4;
-	return __raw_readl(priv->base + SYS_PORT_RDMA_OFFSET + off);
+	return readl_relaxed(priv->base + SYS_PORT_RDMA_OFFSET + off);
 }
 
 static inline void rdma_writel(struct bcm_sysport_priv *priv, u32 val, u32 off)
 {
 	if (priv->is_lite && off >= RDMA_STATUS)
 		off += 4;
-	__raw_writel(val, priv->base + SYS_PORT_RDMA_OFFSET + off);
+	writel_relaxed(val, priv->base + SYS_PORT_RDMA_OFFSET + off);
 }
 
 static inline u32 tdma_control_bit(struct bcm_sysport_priv *priv, u32 bit)
@@ -110,10 +110,10 @@ static inline void dma_desc_set_addr(struct bcm_sysport_priv *priv,
 				     dma_addr_t addr)
 {
 #ifdef CONFIG_PHYS_ADDR_T_64BIT
-	__raw_writel(upper_32_bits(addr) & DESC_ADDR_HI_MASK,
+	writel_relaxed(upper_32_bits(addr) & DESC_ADDR_HI_MASK,
 		     d + DESC_ADDR_HI_STATUS_LEN);
 #endif
-	__raw_writel(lower_32_bits(addr), d + DESC_ADDR_LO);
+	writel_relaxed(lower_32_bits(addr), d + DESC_ADDR_LO);
 }
 
 static inline void tdma_port_write_desc_addr(struct bcm_sysport_priv *priv,
@@ -201,10 +201,10 @@ static int bcm_sysport_set_features(struct net_device *dev,
  */
 static const struct bcm_sysport_stats bcm_sysport_gstrings_stats[] = {
 	/* general stats */
-	STAT_NETDEV(rx_packets),
-	STAT_NETDEV(tx_packets),
-	STAT_NETDEV(rx_bytes),
-	STAT_NETDEV(tx_bytes),
+	STAT_NETDEV64(rx_packets),
+	STAT_NETDEV64(tx_packets),
+	STAT_NETDEV64(rx_bytes),
+	STAT_NETDEV64(tx_bytes),
 	STAT_NETDEV(rx_errors),
 	STAT_NETDEV(tx_errors),
 	STAT_NETDEV(rx_dropped),
@@ -316,6 +316,7 @@ static inline bool bcm_sysport_lite_stat_valid(enum bcm_sysport_stat_type type)
 {
 	switch (type) {
 	case BCM_SYSPORT_STAT_NETDEV:
+	case BCM_SYSPORT_STAT_NETDEV64:
 	case BCM_SYSPORT_STAT_RXCHK:
 	case BCM_SYSPORT_STAT_RBUF:
 	case BCM_SYSPORT_STAT_SOFT:
@@ -398,6 +399,7 @@ static void bcm_sysport_update_mib_counters(struct bcm_sysport_priv *priv)
 		s = &bcm_sysport_gstrings_stats[i];
 		switch (s->type) {
 		case BCM_SYSPORT_STAT_NETDEV:
+		case BCM_SYSPORT_STAT_NETDEV64:
 		case BCM_SYSPORT_STAT_SOFT:
 			continue;
 		case BCM_SYSPORT_STAT_MIB_RX:
@@ -434,7 +436,10 @@ static void bcm_sysport_get_stats(struct net_device *dev,
 				  struct ethtool_stats *stats, u64 *data)
 {
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
+	struct bcm_sysport_stats64 *stats64 = &priv->stats64;
+	struct u64_stats_sync *syncp = &priv->syncp;
 	struct bcm_sysport_tx_ring *ring;
+	unsigned int start;
 	int i, j;
 
 	if (netif_running(dev))
@@ -447,14 +452,22 @@ static void bcm_sysport_get_stats(struct net_device *dev,
 		s = &bcm_sysport_gstrings_stats[i];
 		if (s->type == BCM_SYSPORT_STAT_NETDEV)
 			p = (char *)&dev->stats;
+		else if (s->type == BCM_SYSPORT_STAT_NETDEV64)
+			p = (char *)stats64;
 		else
 			p = (char *)priv;
 
 		if (priv->is_lite && !bcm_sysport_lite_stat_valid(s->type))
 			continue;
-
 		p += s->stat_offset;
-		data[j] = *(unsigned long *)p;
+
+		if (s->stat_sizeof == sizeof(u64))
+			do {
+				start = u64_stats_fetch_begin_irq(syncp);
+				data[i] = *(u64 *)p;
+			} while (u64_stats_fetch_retry_irq(syncp, start));
+		else
+			data[i] = *(u32 *)p;
 		j++;
 	}
 
@@ -666,6 +679,7 @@ static int bcm_sysport_alloc_rx_bufs(struct bcm_sysport_priv *priv)
 static unsigned int bcm_sysport_desc_rx(struct bcm_sysport_priv *priv,
 					unsigned int budget)
 {
+	struct bcm_sysport_stats64 *stats64 = &priv->stats64;
 	struct net_device *ndev = priv->netdev;
 	unsigned int processed = 0, to_process;
 	struct bcm_sysport_cb *cb;
@@ -769,6 +783,10 @@ static unsigned int bcm_sysport_desc_rx(struct bcm_sysport_priv *priv,
 		skb->protocol = eth_type_trans(skb, ndev);
 		ndev->stats.rx_packets++;
 		ndev->stats.rx_bytes += len;
+		u64_stats_update_begin(&priv->syncp);
+		stats64->rx_packets++;
+		stats64->rx_bytes += len;
+		u64_stats_update_end(&priv->syncp);
 
 		napi_gro_receive(&priv->napi, skb);
 next:
@@ -791,17 +809,15 @@ static void bcm_sysport_tx_reclaim_one(struct bcm_sysport_tx_ring *ring,
 	struct device *kdev = &priv->pdev->dev;
 
 	if (cb->skb) {
-		ring->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);
-		ring->packets++;
 		(*pkts_compl)++;
 		bcm_sysport_free_cb(cb);
 	/* SKB fragment */
 	} else if (dma_unmap_addr(cb, dma_addr)) {
-		ring->bytes += dma_unmap_len(cb, dma_len);
+		*bytes_compl += 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_addr_set(cb, dma_addr, 0);
@@ -812,9 +828,9 @@ static void bcm_sysport_tx_reclaim_one(struct bcm_sysport_tx_ring *ring,
 static unsigned int __bcm_sysport_tx_reclaim(struct bcm_sysport_priv *priv,
 					     struct bcm_sysport_tx_ring *ring)
 {
-	struct net_device *ndev = priv->netdev;
 	unsigned int c_index, last_c_index, last_tx_cn, num_tx_cbs;
 	unsigned int pkts_compl = 0, bytes_compl = 0;
+	struct net_device *ndev = priv->netdev;
 	struct bcm_sysport_cb *cb;
 	u32 hw_ind;
 
@@ -853,6 +869,11 @@ static unsigned int __bcm_sysport_tx_reclaim(struct bcm_sysport_priv *priv,
 		last_c_index &= (num_tx_cbs - 1);
 	}
 
+	u64_stats_update_begin(&priv->syncp);
+	ring->packets += pkts_compl;
+	ring->bytes += bytes_compl;
+	u64_stats_update_end(&priv->syncp);
+
 	ring->c_index = c_index;
 
 	netif_dbg(priv, tx_done, ndev,
@@ -1371,6 +1392,19 @@ static int bcm_sysport_init_tx_ring(struct bcm_sysport_priv *priv,
 	tdma_writel(priv, RING_IGNORE_STATUS, TDMA_DESC_RING_MAPPING(index));
 	tdma_writel(priv, 0, TDMA_DESC_RING_PCP_DEI_VID(index));
 
+	/* Do not use tdma_control_bit() here because TSB_SWAP1 collides
+	 * with the original definition of ACB_ALGO
+	 */
+	reg = tdma_readl(priv, TDMA_CONTROL);
+	if (priv->is_lite)
+		reg &= ~BIT(TSB_SWAP1);
+	/* Set a correct TSB format based on host endian */
+	if (!IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
+		reg |= tdma_control_bit(priv, TSB_SWAP0);
+	else
+		reg &= ~tdma_control_bit(priv, TSB_SWAP0);
+	tdma_writel(priv, reg, TDMA_CONTROL);
+
 	/* Program the number of descriptors as MAX_THRESHOLD and half of
 	 * its size for the hysteresis trigger
 	 */
@@ -1677,22 +1711,41 @@ static int bcm_sysport_change_mac(struct net_device *dev, void *p)
 	return 0;
 }
 
-static struct net_device_stats *bcm_sysport_get_nstats(struct net_device *dev)
+static void bcm_sysport_get_stats64(struct net_device *dev,
+				    struct rtnl_link_stats64 *stats)
 {
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
-	unsigned long tx_bytes = 0, tx_packets = 0;
+	struct bcm_sysport_stats64 *stats64 = &priv->stats64;
 	struct bcm_sysport_tx_ring *ring;
+	u64 tx_packets = 0, tx_bytes = 0;
+	unsigned int start;
 	unsigned int q;
 
+	netdev_stats_to_stats64(stats, &dev->stats);
+
 	for (q = 0; q < dev->num_tx_queues; q++) {
 		ring = &priv->tx_rings[q];
-		tx_bytes += ring->bytes;
-		tx_packets += ring->packets;
+		do {
+			start = u64_stats_fetch_begin_irq(&priv->syncp);
+			tx_bytes = ring->bytes;
+			tx_packets = ring->packets;
+		} while (u64_stats_fetch_retry_irq(&priv->syncp, start));
+
+		stats->tx_bytes += tx_bytes;
+		stats->tx_packets += tx_packets;
 	}
 
-	dev->stats.tx_bytes = tx_bytes;
-	dev->stats.tx_packets = tx_packets;
-	return &dev->stats;
+	/* lockless update tx_bytes and tx_packets */
+	u64_stats_update_begin(&priv->syncp);
+	stats64->tx_bytes = stats->tx_bytes;
+	stats64->tx_packets = stats->tx_packets;
+	u64_stats_update_end(&priv->syncp);
+
+	do {
+		start = u64_stats_fetch_begin_irq(&priv->syncp);
+		stats->rx_packets = stats64->rx_packets;
+		stats->rx_bytes = stats64->rx_bytes;
+	} while (u64_stats_fetch_retry_irq(&priv->syncp, start));
 }
 
 static void bcm_sysport_netif_start(struct net_device *dev)
@@ -1724,10 +1777,14 @@ static void rbuf_init(struct bcm_sysport_priv *priv)
 	reg = rbuf_readl(priv, RBUF_CONTROL);
 	reg |= RBUF_4B_ALGN | RBUF_RSB_EN;
 	/* Set a correct RSB format on SYSTEMPORT Lite */
-	if (priv->is_lite) {
+	if (priv->is_lite)
 		reg &= ~RBUF_RSB_SWAP1;
+
+	/* Set a correct RSB format based on host endian */
+	if (!IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
 		reg |= RBUF_RSB_SWAP0;
-	}
+	else
+		reg &= ~RBUF_RSB_SWAP0;
 	rbuf_writel(priv, reg, RBUF_CONTROL);
 }
 
@@ -1956,7 +2013,7 @@ static const struct net_device_ops bcm_sysport_netdev_ops = {
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= bcm_sysport_poll_controller,
 #endif
-	.ndo_get_stats		= bcm_sysport_get_nstats,
+	.ndo_get_stats64	= bcm_sysport_get_stats64,
 };
 
 #define REV_FMT	"v%2x.%02x"
@@ -2104,6 +2161,8 @@ static int bcm_sysport_probe(struct platform_device *pdev)
 	/* libphy will adjust the link state accordingly */
 	netif_carrier_off(dev);
 
+	u64_stats_init(&priv->syncp);
+
 	ret = register_netdev(dev);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register net_device\n");