Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:

 - Add redirect_neigh() BPF packet redirect helper, allowing to limit
   stack traversal in common container configs and improving TCP
   back-pressure.

   Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain.

 - Expand netlink policy support and improve policy export to user
   space. (Ge)netlink core performs request validation according to
   declared policies. Expand the expressiveness of those policies
   (min/max length and bitmasks). Allow dumping policies for particular
   commands. This is used for feature discovery by user space (instead
   of kernel version parsing or trial and error).

 - Support IGMPv3/MLDv2 multicast listener discovery protocols in
   bridge.

 - Allow more than 255 IPv4 multicast interfaces.

 - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK
   packets of TCPv6.

 - In Multi-patch TCP (MPTCP) support concurrent transmission of data on
   multiple subflows in a load balancing scenario. Enhance advertising
   addresses via the RM_ADDR/ADD_ADDR options.

 - Support SMC-Dv2 version of SMC, which enables multi-subnet
   deployments.

 - Allow more calls to same peer in RxRPC.

 - Support two new Controller Area Network (CAN) protocols - CAN-FD and
   ISO 15765-2:2016.

 - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit
   kernel problem.

 - Add TC actions for implementing MPLS L2 VPNs.

 - Improve nexthop code - e.g. handle various corner cases when nexthop
   objects are removed from groups better, skip unnecessary
   notifications and make it easier to offload nexthops into HW by
   converting to a blocking notifier.

 - Support adding and consuming TCP header options by BPF programs,
   opening the doors for easy experimental and deployment-specific TCP
   option use.

 - Reorganize TCP congestion control (CC) initialization to simplify
   life of TCP CC implemented in BPF.

 - Add support for shipping BPF programs with the kernel and loading
   them early on boot via the User Mode Driver mechanism, hence reusing
   all the user space infra we have.

 - Support sleepable BPF programs, initially targeting LSM and tracing.

 - Add bpf_d_path() helper for returning full path for given 'struct
   path'.

 - Make bpf_tail_call compatible with bpf-to-bpf calls.

 - Allow BPF programs to call map_update_elem on sockmaps.

 - Add BPF Type Format (BTF) support for type and enum discovery, as
   well as support for using BTF within the kernel itself (current use
   is for pretty printing structures).

 - Support listing and getting information about bpf_links via the bpf
   syscall.

 - Enhance kernel interfaces around NIC firmware update. Allow
   specifying overwrite mask to control if settings etc. are reset
   during update; report expected max time operation may take to users;
   support firmware activation without machine reboot incl. limits of
   how much impact reset may have (e.g. dropping link or not).

 - Extend ethtool configuration interface to report IEEE-standard
   counters, to limit the need for per-vendor logic in user space.

 - Adopt or extend devlink use for debug, monitoring, fw update in many
   drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx,
   dpaa2-eth).

 - In mlxsw expose critical and emergency SFP module temperature alarms.
   Refactor port buffer handling to make the defaults more suitable and
   support setting these values explicitly via the DCBNL interface.

 - Add XDP support for Intel's igb driver.

 - Support offloading TC flower classification and filtering rules to
   mscc_ocelot switches.

 - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as
   fixed interval period pulse generator and one-step timestamping in
   dpaa-eth.

 - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3)
   offload.

 - Add Lynx PHY/PCS MDIO module, and convert various drivers which have
   this HW to use it. Convert mvpp2 to split PCS.

 - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as
   7-port Mediatek MT7531 IP.

 - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver,
   and wcn3680 support in wcn36xx.

 - Improve performance for packets which don't require much offloads on
   recent Mellanox NICs by 20% by making multiple packets share a
   descriptor entry.

 - Move chelsio inline crypto drivers (for TLS and IPsec) from the
   crypto subtree to drivers/net. Move MDIO drivers out of the phy
   directory.

 - Clean up a lot of W=1 warnings, reportedly the actively developed
   subsections of networking drivers should now build W=1 warning free.

 - Make sure drivers don't use in_interrupt() to dynamically adapt their
   code. Convert tasklets to use new tasklet_setup API (sadly this
   conversion is not yet complete).

* tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits)
  Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"
  net, sockmap: Don't call bpf_prog_put() on NULL pointer
  bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo
  bpf, sockmap: Add locking annotations to iterator
  netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements
  net: fix pos incrementment in ipv6_route_seq_next
  net/smc: fix invalid return code in smcd_new_buf_create()
  net/smc: fix valid DMBE buffer sizes
  net/smc: fix use-after-free of delayed events
  bpfilter: Fix build error with CONFIG_BPFILTER_UMH
  cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr
  net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info
  bpf: Fix register equivalence tracking.
  rxrpc: Fix loss of final ack on shutdown
  rxrpc: Fix bundle counting for exclusive connections
  netfilter: restore NF_INET_NUMHOOKS
  ibmveth: Identify ingress large send packets.
  ibmveth: Switch order of ibmveth_helper calls.
  cxgb4: handle 4-tuple PEDIT to NAT mode translation
  selftests: Add VRF route leaking tests
  ...

1 files changed, 57 insertions, 2 deletions

diff --git a/drivers/net/dsa/dsa_loop.c b/drivers/net/dsa/dsa_loop.c
index eb600b3dbf26..e38906ae8f23 100644
--- a/drivers/net/dsa/dsa_loop.c
+++ b/drivers/net/dsa/dsa_loop.c
@@ -28,6 +28,53 @@ static struct dsa_loop_mib_entry dsa_loop_mibs[] = {
 
 static struct phy_device *phydevs[PHY_MAX_ADDR];
 
+enum dsa_loop_devlink_resource_id {
+	DSA_LOOP_DEVLINK_PARAM_ID_VTU,
+};
+
+static u64 dsa_loop_devlink_vtu_get(void *priv)
+{
+	struct dsa_loop_priv *ps = priv;
+	unsigned int i, count = 0;
+	struct dsa_loop_vlan *vl;
+
+	for (i = 0; i < ARRAY_SIZE(ps->vlans); i++) {
+		vl = &ps->vlans[i];
+		if (vl->members)
+			count++;
+	}
+
+	return count;
+}
+
+static int dsa_loop_setup_devlink_resources(struct dsa_switch *ds)
+{
+	struct devlink_resource_size_params size_params;
+	struct dsa_loop_priv *ps = ds->priv;
+	int err;
+
+	devlink_resource_size_params_init(&size_params, ARRAY_SIZE(ps->vlans),
+					  ARRAY_SIZE(ps->vlans),
+					  1, DEVLINK_RESOURCE_UNIT_ENTRY);
+
+	err = dsa_devlink_resource_register(ds, "VTU", ARRAY_SIZE(ps->vlans),
+					    DSA_LOOP_DEVLINK_PARAM_ID_VTU,
+					    DEVLINK_RESOURCE_ID_PARENT_TOP,
+					    &size_params);
+	if (err)
+		goto out;
+
+	dsa_devlink_resource_occ_get_register(ds,
+					      DSA_LOOP_DEVLINK_PARAM_ID_VTU,
+					      dsa_loop_devlink_vtu_get, ps);
+
+	return 0;
+
+out:
+	dsa_devlink_resources_unregister(ds);
+	return err;
+}
+
 static enum dsa_tag_protocol dsa_loop_get_protocol(struct dsa_switch *ds,
 						   int port,
 						   enum dsa_tag_protocol mp)
@@ -48,7 +95,12 @@ static int dsa_loop_setup(struct dsa_switch *ds)
 
 	dev_dbg(ds->dev, "%s\n", __func__);
 
-	return 0;
+	return dsa_loop_setup_devlink_resources(ds);
+}
+
+static void dsa_loop_teardown(struct dsa_switch *ds)
+{
+	dsa_devlink_resources_unregister(ds);
 }
 
 static int dsa_loop_get_sset_count(struct dsa_switch *ds, int port, int sset)
@@ -138,7 +190,8 @@ static void dsa_loop_port_stp_state_set(struct dsa_switch *ds, int port,
 }
 
 static int dsa_loop_port_vlan_filtering(struct dsa_switch *ds, int port,
-					bool vlan_filtering)
+					bool vlan_filtering,
+					struct switchdev_trans *trans)
 {
 	dev_dbg(ds->dev, "%s: port: %d, vlan_filtering: %d\n",
 		__func__, port, vlan_filtering);
@@ -243,6 +296,7 @@ static int dsa_loop_port_max_mtu(struct dsa_switch *ds, int port)
 static const struct dsa_switch_ops dsa_loop_driver = {
 	.get_tag_protocol	= dsa_loop_get_protocol,
 	.setup			= dsa_loop_setup,
+	.teardown		= dsa_loop_teardown,
 	.get_strings		= dsa_loop_get_strings,
 	.get_ethtool_stats	= dsa_loop_get_ethtool_stats,
 	.get_sset_count		= dsa_loop_get_sset_count,
@@ -290,6 +344,7 @@ static int dsa_loop_drv_probe(struct mdio_device *mdiodev)
 	ds->dev = &mdiodev->dev;
 	ds->ops = &dsa_loop_driver;
 	ds->priv = ps;
+	ds->configure_vlan_while_not_filtering = true;
 	ps->bus = mdiodev->bus;
 
 	dev_set_drvdata(&mdiodev->dev, ds);