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, 153 insertions, 54 deletions

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index 06f953e1e9b2..e107e180e2c8 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -479,6 +479,50 @@ static bool xgbe_is_pfc_queue(struct xgbe_prv_data *pdata,
 	return false;
 }
 
+static void xgbe_set_vxlan_id(struct xgbe_prv_data *pdata)
+{
+	/* Program the VXLAN port */
+	XGMAC_IOWRITE_BITS(pdata, MAC_TIR, TNID, pdata->vxlan_port);
+
+	netif_dbg(pdata, drv, pdata->netdev, "VXLAN tunnel id set to %hx\n",
+		  pdata->vxlan_port);
+}
+
+static void xgbe_enable_vxlan(struct xgbe_prv_data *pdata)
+{
+	if (!pdata->hw_feat.vxn)
+		return;
+
+	/* Program the VXLAN port */
+	xgbe_set_vxlan_id(pdata);
+
+	/* Allow for IPv6/UDP zero-checksum VXLAN packets */
+	XGMAC_IOWRITE_BITS(pdata, MAC_PFR, VUCC, 1);
+
+	/* Enable VXLAN tunneling mode */
+	XGMAC_IOWRITE_BITS(pdata, MAC_TCR, VNM, 0);
+	XGMAC_IOWRITE_BITS(pdata, MAC_TCR, VNE, 1);
+
+	netif_dbg(pdata, drv, pdata->netdev, "VXLAN acceleration enabled\n");
+}
+
+static void xgbe_disable_vxlan(struct xgbe_prv_data *pdata)
+{
+	if (!pdata->hw_feat.vxn)
+		return;
+
+	/* Disable tunneling mode */
+	XGMAC_IOWRITE_BITS(pdata, MAC_TCR, VNE, 0);
+
+	/* Clear IPv6/UDP zero-checksum VXLAN packets setting */
+	XGMAC_IOWRITE_BITS(pdata, MAC_PFR, VUCC, 0);
+
+	/* Clear the VXLAN port */
+	XGMAC_IOWRITE_BITS(pdata, MAC_TIR, TNID, 0);
+
+	netif_dbg(pdata, drv, pdata->netdev, "VXLAN acceleration disabled\n");
+}
+
 static int xgbe_disable_tx_flow_control(struct xgbe_prv_data *pdata)
 {
 	unsigned int max_q_count, q_count;
@@ -605,32 +649,38 @@ static void xgbe_config_flow_control(struct xgbe_prv_data *pdata)
 static void xgbe_enable_dma_interrupts(struct xgbe_prv_data *pdata)
 {
 	struct xgbe_channel *channel;
-	unsigned int dma_ch_isr, dma_ch_ier;
-	unsigned int i;
+	unsigned int i, ver;
 
 	/* Set the interrupt mode if supported */
 	if (pdata->channel_irq_mode)
 		XGMAC_IOWRITE_BITS(pdata, DMA_MR, INTM,
 				   pdata->channel_irq_mode);
 
+	ver = XGMAC_GET_BITS(pdata->hw_feat.version, MAC_VR, SNPSVER);
+
 	for (i = 0; i < pdata->channel_count; i++) {
 		channel = pdata->channel[i];
 
 		/* Clear all the interrupts which are set */
-		dma_ch_isr = XGMAC_DMA_IOREAD(channel, DMA_CH_SR);
-		XGMAC_DMA_IOWRITE(channel, DMA_CH_SR, dma_ch_isr);
+		XGMAC_DMA_IOWRITE(channel, DMA_CH_SR,
+				  XGMAC_DMA_IOREAD(channel, DMA_CH_SR));
 
 		/* Clear all interrupt enable bits */
-		dma_ch_ier = 0;
+		channel->curr_ier = 0;
 
 		/* Enable following interrupts
 		 *   NIE  - Normal Interrupt Summary Enable
 		 *   AIE  - Abnormal Interrupt Summary Enable
 		 *   FBEE - Fatal Bus Error Enable
 		 */
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, NIE, 1);
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, AIE, 1);
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, FBEE, 1);
+		if (ver < 0x21) {
+			XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, NIE20, 1);
+			XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, AIE20, 1);
+		} else {
+			XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, NIE, 1);
+			XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, AIE, 1);
+		}
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, FBEE, 1);
 
 		if (channel->tx_ring) {
 			/* Enable the following Tx interrupts
@@ -639,7 +689,8 @@ static void xgbe_enable_dma_interrupts(struct xgbe_prv_data *pdata)
 			 *          mode)
 			 */
 			if (!pdata->per_channel_irq || pdata->channel_irq_mode)
-				XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TIE, 1);
+				XGMAC_SET_BITS(channel->curr_ier,
+					       DMA_CH_IER, TIE, 1);
 		}
 		if (channel->rx_ring) {
 			/* Enable following Rx interrupts
@@ -648,12 +699,13 @@ static void xgbe_enable_dma_interrupts(struct xgbe_prv_data *pdata)
 			 *          per channel interrupts in edge triggered
 			 *          mode)
 			 */
-			XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RBUE, 1);
+			XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RBUE, 1);
 			if (!pdata->per_channel_irq || pdata->channel_irq_mode)
-				XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RIE, 1);
+				XGMAC_SET_BITS(channel->curr_ier,
+					       DMA_CH_IER, RIE, 1);
 		}
 
-		XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, dma_ch_ier);
+		XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, channel->curr_ier);
 	}
 }
 
@@ -1608,7 +1660,8 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
 	struct xgbe_ring_data *rdata;
 	struct xgbe_ring_desc *rdesc;
 	struct xgbe_packet_data *packet = &ring->packet_data;
-	unsigned int csum, tso, vlan;
+	unsigned int tx_packets, tx_bytes;
+	unsigned int csum, tso, vlan, vxlan;
 	unsigned int tso_context, vlan_context;
 	unsigned int tx_set_ic;
 	int start_index = ring->cur;
@@ -1617,12 +1670,17 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
 
 	DBGPR("-->xgbe_dev_xmit\n");
 
+	tx_packets = packet->tx_packets;
+	tx_bytes = packet->tx_bytes;
+
 	csum = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
 			      CSUM_ENABLE);
 	tso = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
 			     TSO_ENABLE);
 	vlan = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
 			      VLAN_CTAG);
+	vxlan = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
+			       VXLAN);
 
 	if (tso && (packet->mss != ring->tx.cur_mss))
 		tso_context = 1;
@@ -1644,13 +1702,12 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
 	 *     - Addition of Tx frame count to the frame count since the
 	 *       last interrupt was set does not exceed the frame count setting
 	 */
-	ring->coalesce_count += packet->tx_packets;
+	ring->coalesce_count += tx_packets;
 	if (!pdata->tx_frames)
 		tx_set_ic = 0;
-	else if (packet->tx_packets > pdata->tx_frames)
+	else if (tx_packets > pdata->tx_frames)
 		tx_set_ic = 1;
-	else if ((ring->coalesce_count % pdata->tx_frames) <
-		 packet->tx_packets)
+	else if ((ring->coalesce_count % pdata->tx_frames) < tx_packets)
 		tx_set_ic = 1;
 	else
 		tx_set_ic = 0;
@@ -1740,7 +1797,7 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
 		XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, TCPHDRLEN,
 				  packet->tcp_header_len / 4);
 
-		pdata->ext_stats.tx_tso_packets++;
+		pdata->ext_stats.tx_tso_packets += tx_packets;
 	} else {
 		/* Enable CRC and Pad Insertion */
 		XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CPC, 0);
@@ -1755,6 +1812,13 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
 				  packet->length);
 	}
 
+	if (vxlan) {
+		XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, VNP,
+				  TX_NORMAL_DESC3_VXLAN_PACKET);
+
+		pdata->ext_stats.tx_vxlan_packets += packet->tx_packets;
+	}
+
 	for (i = cur_index - start_index + 1; i < packet->rdesc_count; i++) {
 		cur_index++;
 		rdata = XGBE_GET_DESC_DATA(ring, cur_index);
@@ -1788,8 +1852,11 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
 		XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, IC, 1);
 
 	/* Save the Tx info to report back during cleanup */
-	rdata->tx.packets = packet->tx_packets;
-	rdata->tx.bytes = packet->tx_bytes;
+	rdata->tx.packets = tx_packets;
+	rdata->tx.bytes = tx_bytes;
+
+	pdata->ext_stats.txq_packets[channel->queue_index] += tx_packets;
+	pdata->ext_stats.txq_bytes[channel->queue_index] += tx_bytes;
 
 	/* In case the Tx DMA engine is running, make sure everything
 	 * is written to the descriptor(s) before setting the OWN bit
@@ -1913,9 +1980,28 @@ static int xgbe_dev_read(struct xgbe_channel *channel)
 	rdata->rx.len = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, PL);
 
 	/* Set checksum done indicator as appropriate */
-	if (netdev->features & NETIF_F_RXCSUM)
+	if (netdev->features & NETIF_F_RXCSUM) {
 		XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
 			       CSUM_DONE, 1);
+		XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+			       TNPCSUM_DONE, 1);
+	}
+
+	/* Set the tunneled packet indicator */
+	if (XGMAC_GET_BITS_LE(rdesc->desc2, RX_NORMAL_DESC2, TNP)) {
+		XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+			       TNP, 1);
+		pdata->ext_stats.rx_vxlan_packets++;
+
+		l34t = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, L34T);
+		switch (l34t) {
+		case RX_DESC3_L34T_IPV4_UNKNOWN:
+		case RX_DESC3_L34T_IPV6_UNKNOWN:
+			XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+				       TNPCSUM_DONE, 0);
+			break;
+		}
+	}
 
 	/* Check for errors (only valid in last descriptor) */
 	err = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, ES);
@@ -1935,14 +2021,30 @@ static int xgbe_dev_read(struct xgbe_channel *channel)
 				  packet->vlan_ctag);
 		}
 	} else {
-		if ((etlt == 0x05) || (etlt == 0x06))
+		unsigned int tnp = XGMAC_GET_BITS(packet->attributes,
+						  RX_PACKET_ATTRIBUTES, TNP);
+
+		if ((etlt == 0x05) || (etlt == 0x06)) {
 			XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
 				       CSUM_DONE, 0);
-		else
+			XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+				       TNPCSUM_DONE, 0);
+			pdata->ext_stats.rx_csum_errors++;
+		} else if (tnp && ((etlt == 0x09) || (etlt == 0x0a))) {
+			XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+				       CSUM_DONE, 0);
+			XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+				       TNPCSUM_DONE, 0);
+			pdata->ext_stats.rx_vxlan_csum_errors++;
+		} else {
 			XGMAC_SET_BITS(packet->errors, RX_PACKET_ERRORS,
 				       FRAME, 1);
+		}
 	}
 
+	pdata->ext_stats.rxq_packets[channel->queue_index]++;
+	pdata->ext_stats.rxq_bytes[channel->queue_index] += rdata->rx.len;
+
 	DBGPR("<--xgbe_dev_read: %s - descriptor=%u (cur=%d)\n", channel->name,
 	      ring->cur & (ring->rdesc_count - 1), ring->cur);
 
@@ -1964,44 +2066,40 @@ static int xgbe_is_last_desc(struct xgbe_ring_desc *rdesc)
 static int xgbe_enable_int(struct xgbe_channel *channel,
 			   enum xgbe_int int_id)
 {
-	unsigned int dma_ch_ier;
-
-	dma_ch_ier = XGMAC_DMA_IOREAD(channel, DMA_CH_IER);
-
 	switch (int_id) {
 	case XGMAC_INT_DMA_CH_SR_TI:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TIE, 1);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TIE, 1);
 		break;
 	case XGMAC_INT_DMA_CH_SR_TPS:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TXSE, 1);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TXSE, 1);
 		break;
 	case XGMAC_INT_DMA_CH_SR_TBU:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TBUE, 1);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TBUE, 1);
 		break;
 	case XGMAC_INT_DMA_CH_SR_RI:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RIE, 1);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RIE, 1);
 		break;
 	case XGMAC_INT_DMA_CH_SR_RBU:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RBUE, 1);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RBUE, 1);
 		break;
 	case XGMAC_INT_DMA_CH_SR_RPS:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RSE, 1);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RSE, 1);
 		break;
 	case XGMAC_INT_DMA_CH_SR_TI_RI:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TIE, 1);
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RIE, 1);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TIE, 1);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RIE, 1);
 		break;
 	case XGMAC_INT_DMA_CH_SR_FBE:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, FBEE, 1);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, FBEE, 1);
 		break;
 	case XGMAC_INT_DMA_ALL:
-		dma_ch_ier |= channel->saved_ier;
+		channel->curr_ier |= channel->saved_ier;
 		break;
 	default:
 		return -1;
 	}
 
-	XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, dma_ch_ier);
+	XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, channel->curr_ier);
 
 	return 0;
 }
@@ -2009,45 +2107,41 @@ static int xgbe_enable_int(struct xgbe_channel *channel,
 static int xgbe_disable_int(struct xgbe_channel *channel,
 			    enum xgbe_int int_id)
 {
-	unsigned int dma_ch_ier;
-
-	dma_ch_ier = XGMAC_DMA_IOREAD(channel, DMA_CH_IER);
-
 	switch (int_id) {
 	case XGMAC_INT_DMA_CH_SR_TI:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TIE, 0);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TIE, 0);
 		break;
 	case XGMAC_INT_DMA_CH_SR_TPS:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TXSE, 0);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TXSE, 0);
 		break;
 	case XGMAC_INT_DMA_CH_SR_TBU:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TBUE, 0);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TBUE, 0);
 		break;
 	case XGMAC_INT_DMA_CH_SR_RI:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RIE, 0);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RIE, 0);
 		break;
 	case XGMAC_INT_DMA_CH_SR_RBU:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RBUE, 0);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RBUE, 0);
 		break;
 	case XGMAC_INT_DMA_CH_SR_RPS:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RSE, 0);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RSE, 0);
 		break;
 	case XGMAC_INT_DMA_CH_SR_TI_RI:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TIE, 0);
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RIE, 0);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TIE, 0);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RIE, 0);
 		break;
 	case XGMAC_INT_DMA_CH_SR_FBE:
-		XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, FBEE, 0);
+		XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, FBEE, 0);
 		break;
 	case XGMAC_INT_DMA_ALL:
-		channel->saved_ier = dma_ch_ier & XGBE_DMA_INTERRUPT_MASK;
-		dma_ch_ier &= ~XGBE_DMA_INTERRUPT_MASK;
+		channel->saved_ier = channel->curr_ier;
+		channel->curr_ier = 0;
 		break;
 	default:
 		return -1;
 	}
 
-	XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, dma_ch_ier);
+	XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, channel->curr_ier);
 
 	return 0;
 }
@@ -3534,5 +3628,10 @@ void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *hw_if)
 	hw_if->disable_ecc_ded = xgbe_disable_ecc_ded;
 	hw_if->disable_ecc_sec = xgbe_disable_ecc_sec;
 
+	/* For VXLAN */
+	hw_if->enable_vxlan = xgbe_enable_vxlan;
+	hw_if->disable_vxlan = xgbe_disable_vxlan;
+	hw_if->set_vxlan_id = xgbe_set_vxlan_id;
+
 	DBGPR("<--xgbe_init_function_ptrs\n");
 }