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

Pull networking updates from David Miller:
 "Highlights:

   1) Fix the iwlwifi regression, from Johannes Berg.

   2) Support BSS coloring and 802.11 encapsulation offloading in
      hardware, from John Crispin.

   3) Fix some potential Spectre issues in qtnfmac, from Sergey
      Matyukevich.

   4) Add TTL decrement action to openvswitch, from Matteo Croce.

   5) Allow paralleization through flow_action setup by not taking the
      RTNL mutex, from Vlad Buslov.

   6) A lot of zero-length array to flexible-array conversions, from
      Gustavo A. R. Silva.

   7) Align XDP statistics names across several drivers for consistency,
      from Lorenzo Bianconi.

   8) Add various pieces of infrastructure for offloading conntrack, and
      make use of it in mlx5 driver, from Paul Blakey.

   9) Allow using listening sockets in BPF sockmap, from Jakub Sitnicki.

  10) Lots of parallelization improvements during configuration changes
      in mlxsw driver, from Ido Schimmel.

  11) Add support to devlink for generic packet traps, which report
      packets dropped during ACL processing. And use them in mlxsw
      driver. From Jiri Pirko.

  12) Support bcmgenet on ACPI, from Jeremy Linton.

  13) Make BPF compatible with RT, from Thomas Gleixnet, Alexei
      Starovoitov, and your's truly.

  14) Support XDP meta-data in virtio_net, from Yuya Kusakabe.

  15) Fix sysfs permissions when network devices change namespaces, from
      Christian Brauner.

  16) Add a flags element to ethtool_ops so that drivers can more simply
      indicate which coalescing parameters they actually support, and
      therefore the generic layer can validate the user's ethtool
      request. Use this in all drivers, from Jakub Kicinski.

  17) Offload FIFO qdisc in mlxsw, from Petr Machata.

  18) Support UDP sockets in sockmap, from Lorenz Bauer.

  19) Fix stretch ACK bugs in several TCP congestion control modules,
      from Pengcheng Yang.

  20) Support virtual functiosn in octeontx2 driver, from Tomasz
      Duszynski.

  21) Add region operations for devlink and use it in ice driver to dump
      NVM contents, from Jacob Keller.

  22) Add support for hw offload of MACSEC, from Antoine Tenart.

  23) Add support for BPF programs that can be attached to LSM hooks,
      from KP Singh.

  24) Support for multiple paths, path managers, and counters in MPTCP.
      From Peter Krystad, Paolo Abeni, Florian Westphal, Davide Caratti,
      and others.

  25) More progress on adding the netlink interface to ethtool, from
      Michal Kubecek"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2121 commits)
  net: ipv6: rpl_iptunnel: Fix potential memory leak in rpl_do_srh_inline
  cxgb4/chcr: nic-tls stats in ethtool
  net: dsa: fix oops while probing Marvell DSA switches
  net/bpfilter: remove superfluous testing message
  net: macb: Fix handling of fixed-link node
  net: dsa: ksz: Select KSZ protocol tag
  netdevsim: dev: Fix memory leak in nsim_dev_take_snapshot_write
  net: stmmac: add EHL 2.5Gbps PCI info and PCI ID
  net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID
  net: stmmac: create dwmac-intel.c to contain all Intel platform
  net: dsa: bcm_sf2: Support specifying VLAN tag egress rule
  net: dsa: bcm_sf2: Add support for matching VLAN TCI
  net: dsa: bcm_sf2: Move writing of CFP_DATA(5) into slicing functions
  net: dsa: bcm_sf2: Check earlier for FLOW_EXT and FLOW_MAC_EXT
  net: dsa: bcm_sf2: Disable learning for ASP port
  net: dsa: b53: Deny enslaving port 7 for 7278 into a bridge
  net: dsa: b53: Prevent tagged VLAN on port 7 for 7278
  net: dsa: b53: Restore VLAN entries upon (re)configuration
  net: dsa: bcm_sf2: Fix overflow checks
  hv_netvsc: Remove unnecessary round_up for recv_completion_cnt
  ...

1 files changed, 98 insertions, 41 deletions

diff --git a/drivers/net/dsa/bcm_sf2_cfp.c b/drivers/net/dsa/bcm_sf2_cfp.c
index 1962c8330daa..f707edc641cf 100644
--- a/drivers/net/dsa/bcm_sf2_cfp.c
+++ b/drivers/net/dsa/bcm_sf2_cfp.c
@@ -13,6 +13,8 @@
 #include <net/dsa.h>
 #include <linux/bitmap.h>
 #include <net/flow_offload.h>
+#include <net/switchdev.h>
+#include <uapi/linux/if_bridge.h>
 
 #include "bcm_sf2.h"
 #include "bcm_sf2_regs.h"
@@ -261,16 +263,27 @@ static int bcm_sf2_cfp_act_pol_set(struct bcm_sf2_priv *priv,
 static void bcm_sf2_cfp_slice_ipv4(struct bcm_sf2_priv *priv,
 				   struct flow_dissector_key_ipv4_addrs *addrs,
 				   struct flow_dissector_key_ports *ports,
-				   unsigned int slice_num,
+				   const __be16 vlan_tci,
+				   unsigned int slice_num, u8 num_udf,
 				   bool mask)
 {
 	u32 reg, offset;
 
+	/* UDF_Valid[7:0]	[31:24]
+	 * S-Tag		[23:8]
+	 * C-Tag		[7:0]
+	 */
+	reg = udf_lower_bits(num_udf) << 24 | be16_to_cpu(vlan_tci) >> 8;
+	if (mask)
+		core_writel(priv, reg, CORE_CFP_MASK_PORT(5));
+	else
+		core_writel(priv, reg, CORE_CFP_DATA_PORT(5));
+
 	/* C-Tag		[31:24]
 	 * UDF_n_A8		[23:8]
 	 * UDF_n_A7		[7:0]
 	 */
-	reg = 0;
+	reg = (u32)(be16_to_cpu(vlan_tci) & 0xff) << 24;
 	if (mask)
 		offset = CORE_CFP_MASK_PORT(4);
 	else
@@ -336,6 +349,7 @@ static int bcm_sf2_cfp_ipv4_rule_set(struct bcm_sf2_priv *priv, int port,
 				     struct ethtool_rx_flow_spec *fs)
 {
 	struct ethtool_rx_flow_spec_input input = {};
+	__be16 vlan_tci = 0 , vlan_m_tci = 0xffff;
 	const struct cfp_udf_layout *layout;
 	unsigned int slice_num, rule_index;
 	struct ethtool_rx_flow_rule *flow;
@@ -360,6 +374,12 @@ static int bcm_sf2_cfp_ipv4_rule_set(struct bcm_sf2_priv *priv, int port,
 
 	ip_frag = !!(be32_to_cpu(fs->h_ext.data[0]) & 1);
 
+	/* Extract VLAN TCI */
+	if (fs->flow_type & FLOW_EXT) {
+		vlan_tci = fs->h_ext.vlan_tci;
+		vlan_m_tci = fs->m_ext.vlan_tci;
+	}
+
 	/* Locate the first rule available */
 	if (fs->location == RX_CLS_LOC_ANY)
 		rule_index = find_first_zero_bit(priv->cfp.used,
@@ -421,18 +441,11 @@ static int bcm_sf2_cfp_ipv4_rule_set(struct bcm_sf2_priv *priv, int port,
 	core_writel(priv, layout->udfs[slice_num].mask_value |
 		    udf_upper_bits(num_udf), CORE_CFP_MASK_PORT(6));
 
-	/* UDF_Valid[7:0]	[31:24]
-	 * S-Tag		[23:8]
-	 * C-Tag		[7:0]
-	 */
-	core_writel(priv, udf_lower_bits(num_udf) << 24, CORE_CFP_DATA_PORT(5));
-
-	/* Mask all but valid UDFs */
-	core_writel(priv, udf_lower_bits(num_udf) << 24, CORE_CFP_MASK_PORT(5));
-
 	/* Program the match and the mask */
-	bcm_sf2_cfp_slice_ipv4(priv, ipv4.key, ports.key, slice_num, false);
-	bcm_sf2_cfp_slice_ipv4(priv, ipv4.mask, ports.mask, SLICE_NUM_MASK, true);
+	bcm_sf2_cfp_slice_ipv4(priv, ipv4.key, ports.key, vlan_tci,
+			       slice_num, num_udf, false);
+	bcm_sf2_cfp_slice_ipv4(priv, ipv4.mask, ports.mask, vlan_m_tci,
+			       SLICE_NUM_MASK, num_udf, true);
 
 	/* Insert into TCAM now */
 	bcm_sf2_cfp_rule_addr_set(priv, rule_index);
@@ -468,17 +481,29 @@ out_err_flow_rule:
 
 static void bcm_sf2_cfp_slice_ipv6(struct bcm_sf2_priv *priv,
 				   const __be32 *ip6_addr, const __be16 port,
-				   unsigned int slice_num,
+				   const __be16 vlan_tci,
+				   unsigned int slice_num, u32 udf_bits,
 				   bool mask)
 {
 	u32 reg, tmp, val, offset;
 
+	/* UDF_Valid[7:0]	[31:24]
+	 * S-Tag		[23:8]
+	 * C-Tag		[7:0]
+	 */
+	reg = udf_bits << 24 | be16_to_cpu(vlan_tci) >> 8;
+	if (mask)
+		core_writel(priv, reg, CORE_CFP_MASK_PORT(5));
+	else
+		core_writel(priv, reg, CORE_CFP_DATA_PORT(5));
+
 	/* C-Tag		[31:24]
 	 * UDF_n_B8		[23:8]	(port)
 	 * UDF_n_B7 (upper)	[7:0]	(addr[15:8])
 	 */
 	reg = be32_to_cpu(ip6_addr[3]);
 	val = (u32)be16_to_cpu(port) << 8 | ((reg >> 8) & 0xff);
+	val |= (u32)(be16_to_cpu(vlan_tci) & 0xff) << 24;
 	if (mask)
 		offset = CORE_CFP_MASK_PORT(4);
 	else
@@ -587,6 +612,11 @@ static int bcm_sf2_cfp_rule_cmp(struct bcm_sf2_priv *priv, int port,
 
 		ret = memcmp(&rule->fs.h_u, &fs->h_u, fs_size);
 		ret |= memcmp(&rule->fs.m_u, &fs->m_u, fs_size);
+		/* Compare VLAN TCI values as well */
+		if (rule->fs.flow_type & FLOW_EXT) {
+			ret |= rule->fs.h_ext.vlan_tci != fs->h_ext.vlan_tci;
+			ret |= rule->fs.m_ext.vlan_tci != fs->m_ext.vlan_tci;
+		}
 		if (ret == 0)
 			break;
 	}
@@ -600,6 +630,7 @@ static int bcm_sf2_cfp_ipv6_rule_set(struct bcm_sf2_priv *priv, int port,
 				     struct ethtool_rx_flow_spec *fs)
 {
 	struct ethtool_rx_flow_spec_input input = {};
+	__be16 vlan_tci = 0, vlan_m_tci = 0xffff;
 	unsigned int slice_num, rule_index[2];
 	const struct cfp_udf_layout *layout;
 	struct ethtool_rx_flow_rule *flow;
@@ -623,6 +654,12 @@ static int bcm_sf2_cfp_ipv6_rule_set(struct bcm_sf2_priv *priv, int port,
 
 	ip_frag = !!(be32_to_cpu(fs->h_ext.data[0]) & 1);
 
+	/* Extract VLAN TCI */
+	if (fs->flow_type & FLOW_EXT) {
+		vlan_tci = fs->h_ext.vlan_tci;
+		vlan_m_tci = fs->m_ext.vlan_tci;
+	}
+
 	layout = &udf_tcpip6_layout;
 	slice_num = bcm_sf2_get_slice_number(layout, 0);
 	if (slice_num == UDF_NUM_SLICES)
@@ -704,20 +741,13 @@ static int bcm_sf2_cfp_ipv6_rule_set(struct bcm_sf2_priv *priv, int port,
 	reg = layout->udfs[slice_num].mask_value | udf_upper_bits(num_udf);
 	core_writel(priv, reg, CORE_CFP_MASK_PORT(6));
 
-	/* UDF_Valid[7:0]	[31:24]
-	 * S-Tag		[23:8]
-	 * C-Tag		[7:0]
-	 */
-	core_writel(priv, udf_lower_bits(num_udf) << 24, CORE_CFP_DATA_PORT(5));
-
-	/* Mask all but valid UDFs */
-	core_writel(priv, udf_lower_bits(num_udf) << 24, CORE_CFP_MASK_PORT(5));
-
 	/* Slice the IPv6 source address and port */
 	bcm_sf2_cfp_slice_ipv6(priv, ipv6.key->src.in6_u.u6_addr32,
-			       ports.key->src, slice_num, false);
+			       ports.key->src, vlan_tci, slice_num,
+			       udf_lower_bits(num_udf), false);
 	bcm_sf2_cfp_slice_ipv6(priv, ipv6.mask->src.in6_u.u6_addr32,
-			       ports.mask->src, SLICE_NUM_MASK, true);
+			       ports.mask->src, vlan_m_tci, SLICE_NUM_MASK,
+			       udf_lower_bits(num_udf), true);
 
 	/* Insert into TCAM now because we need to insert a second rule */
 	bcm_sf2_cfp_rule_addr_set(priv, rule_index[0]);
@@ -768,16 +798,12 @@ static int bcm_sf2_cfp_ipv6_rule_set(struct bcm_sf2_priv *priv, int port,
 		udf_lower_bits(num_udf) << 8;
 	core_writel(priv, reg, CORE_CFP_MASK_PORT(6));
 
-	/* Don't care */
-	core_writel(priv, 0, CORE_CFP_DATA_PORT(5));
-
-	/* Mask all */
-	core_writel(priv, 0, CORE_CFP_MASK_PORT(5));
-
 	bcm_sf2_cfp_slice_ipv6(priv, ipv6.key->dst.in6_u.u6_addr32,
-			       ports.key->dst, slice_num, false);
+			       ports.key->dst, 0, slice_num,
+			       0, false);
 	bcm_sf2_cfp_slice_ipv6(priv, ipv6.mask->dst.in6_u.u6_addr32,
-			       ports.key->dst, SLICE_NUM_MASK, true);
+			       ports.key->dst, 0, SLICE_NUM_MASK,
+			       0, true);
 
 	/* Insert into TCAM now */
 	bcm_sf2_cfp_rule_addr_set(priv, rule_index[1]);
@@ -823,7 +849,9 @@ static int bcm_sf2_cfp_rule_insert(struct dsa_switch *ds, int port,
 	struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
 	s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
 	__u64 ring_cookie = fs->ring_cookie;
+	struct switchdev_obj_port_vlan vlan;
 	unsigned int queue_num, port_num;
+	u16 vid;
 	int ret;
 
 	/* This rule is a Wake-on-LAN filter and we must specifically
@@ -843,6 +871,34 @@ static int bcm_sf2_cfp_rule_insert(struct dsa_switch *ds, int port,
 	      dsa_is_cpu_port(ds, port_num)) ||
 	    port_num >= priv->hw_params.num_ports)
 		return -EINVAL;
+
+	/* If the rule is matching a particular VLAN, make sure that we honor
+	 * the matching and have it tagged or untagged on the destination port,
+	 * we do this on egress with a VLAN entry. The egress tagging attribute
+	 * is expected to be provided in h_ext.data[1] bit 0. A 1 means untagged,
+	 * a 0 means tagged.
+	 */
+	if (fs->flow_type & FLOW_EXT) {
+		/* We cannot support matching multiple VLAN IDs yet */
+		if ((be16_to_cpu(fs->m_ext.vlan_tci) & VLAN_VID_MASK) !=
+		    VLAN_VID_MASK)
+			return -EINVAL;
+
+		vid = be16_to_cpu(fs->h_ext.vlan_tci) & VLAN_VID_MASK;
+		vlan.vid_begin = vid;
+		vlan.vid_end = vid;
+		if (cpu_to_be32(fs->h_ext.data[1]) & 1)
+			vlan.flags = BRIDGE_VLAN_INFO_UNTAGGED;
+		else
+			vlan.flags = 0;
+
+		ret = ds->ops->port_vlan_prepare(ds, port_num, &vlan);
+		if (ret)
+			return ret;
+
+		ds->ops->port_vlan_add(ds, port_num, &vlan);
+	}
+
 	/*
 	 * We have a small oddity where Port 6 just does not have a
 	 * valid bit here (so we substract by one).
@@ -878,21 +934,22 @@ static int bcm_sf2_cfp_rule_set(struct dsa_switch *ds, int port,
 	int ret = -EINVAL;
 
 	/* Check for unsupported extensions */
-	if ((fs->flow_type & FLOW_EXT) && (fs->m_ext.vlan_etype ||
-	     fs->m_ext.data[1]))
+	if (fs->flow_type & FLOW_MAC_EXT)
 		return -EINVAL;
 
-	if (fs->location != RX_CLS_LOC_ANY && fs->location >= CFP_NUM_RULES)
+	if (fs->location != RX_CLS_LOC_ANY &&
+	    fs->location > bcm_sf2_cfp_rule_size(priv))
 		return -EINVAL;
 
+	if ((fs->flow_type & FLOW_EXT) &&
+	    !(ds->ops->port_vlan_prepare || ds->ops->port_vlan_add ||
+	      ds->ops->port_vlan_del))
+		return -EOPNOTSUPP;
+
 	if (fs->location != RX_CLS_LOC_ANY &&
 	    test_bit(fs->location, priv->cfp.used))
 		return -EBUSY;
 
-	if (fs->location != RX_CLS_LOC_ANY &&
-	    fs->location > bcm_sf2_cfp_rule_size(priv))
-		return -EINVAL;
-
 	ret = bcm_sf2_cfp_rule_cmp(priv, port, fs);
 	if (ret == 0)
 		return -EEXIST;
@@ -973,7 +1030,7 @@ static int bcm_sf2_cfp_rule_del(struct bcm_sf2_priv *priv, int port, u32 loc)
 	struct cfp_rule *rule;
 	int ret;
 
-	if (loc >= CFP_NUM_RULES)
+	if (loc > bcm_sf2_cfp_rule_size(priv))
 		return -EINVAL;
 
 	/* Refuse deleting unused rules, and those that are not unique since