Merge tag 'net-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
 "The most significant set of changes is the per netns RTNL. The new
  behavior is disabled by default, regression risk should be contained.

  Notably the new config knob PTP_1588_CLOCK_VMCLOCK will inherit its
  default value from PTP_1588_CLOCK_KVM, as the first is intended to be
  a more reliable replacement for the latter.

  Core:

   - Started a very large, in-progress, effort to make the RTNL lock
     scope per network-namespace, thus reducing the lock contention
     significantly in the containerized use-case, comprising:
       - RCU-ified some relevant slices of the FIB control path
       - introduce basic per netns locking helpers
       - namespacified the IPv4 address hash table
       - remove rtnl_register{,_module}() in favour of
         rtnl_register_many()
       - refactor rtnl_{new,del,set}link() moving as much validation as
         possible out of RTNL lock
       - convert all phonet doit() and dumpit() handlers to RCU
       - convert IPv4 addresses manipulation to per-netns RTNL
       - convert virtual interface creation to per-netns RTNL
     the per-netns lock infrastructure is guarded by the
     CONFIG_DEBUG_NET_SMALL_RTNL knob, disabled by default ad interim.

   - Introduce NAPI suspension, to efficiently switching between busy
     polling (NAPI processing suspended) and normal processing.

   - Migrate the IPv4 routing input, output and control path from direct
     ToS usage to DSCP macros. This is a work in progress to make ECN
     handling consistent and reliable.

   - Add drop reasons support to the IPv4 rotue input path, allowing
     better introspection in case of packets drop.

   - Make FIB seqnum lockless, dropping RTNL protection for read access.

   - Make inet{,v6} addresses hashing less predicable.

   - Allow providing timestamp OPT_ID via cmsg, to correlate TX packets
     and timestamps

  Things we sprinkled into general kernel code:

   - Add small file operations for debugfs, to reduce the struct ops
     size.

   - Refactoring and optimization for the implementation of page_frag
     API, This is a preparatory work to consolidate the page_frag
     implementation.

  Netfilter:

   - Optimize set element transactions to reduce memory consumption

   - Extended netlink error reporting for attribute parser failure.

   - Make legacy xtables configs user selectable, giving users the
     option to configure iptables without enabling any other config.

   - Address a lot of false-positive RCU issues, pointed by recent CI
     improvements.

  BPF:

   - Put xsk sockets on a struct diet and add various cleanups. Overall,
     this helps to bump performance by 12% for some workloads.

   - Extend BPF selftests to increase coverage of XDP features in
     combination with BPF cpumap.

   - Optimize and homogenize bpf_csum_diff helper for all archs and also
     add a batch of new BPF selftests for it.

   - Extend netkit with an option to delegate skb->{mark,priority}
     scrubbing to its BPF program.

   - Make the bpf_get_netns_cookie() helper available also to tc(x) BPF
     programs.

  Protocols:

   - Introduces 4-tuple hash for connected udp sockets, speeding-up
     significantly connected sockets lookup.

   - Add a fastpath for some TCP timers that usually expires after
     close, the socket lock contention.

   - Add inbound and outbound xfrm state caches to speed up state
     lookups.

   - Avoid sending MPTCP advertisements on stale subflows, reducing
     risks on loosing them.

   - Make neighbours table flushing more scalable, maintaining per
     device neigh lists.

  Driver API:

   - Introduce a unified interface to configure transmission H/W
     shaping, and expose it to user-space via generic-netlink.

   - Add support for per-NAPI config via netlink. This makes napi
     configuration persistent across queues removal and re-creation.
     Requires driver updates, currently supported drivers are:
     nVidia/Mellanox mlx4 and mlx5, Broadcom brcm and Intel ice.

   - Add ethtool support for writing SFP / PHY firmware blocks.

   - Track RSS context allocation from ethtool core.

   - Implement support for mirroring to DSA CPU port, via TC mirror
     offload.

   - Consolidate FDB updates notification, to avoid duplicates on
     device-specific entries.

   - Expose DPLL clock quality level to the user-space.

   - Support master-slave PHY config via device tree.

  Tests and tooling:

   - forwarding: introduce deferred commands, to simplify the cleanup
     phase

  Drivers:

   - Updated several drivers - Amazon vNic, Google vNic, Microsoft vNic,
     Intel e1000e and Broadcom Tigon3 - to use netdev-genl to link the
     IRQs and queues to NAPI IDs, allowing busy polling and better
     introspection.

   - Ethernet high-speed NICs:
      - nVidia/Mellanox:
         - mlx5:
           - a large refactor to implement support for cross E-Switch
             scheduling
           - refactor H/W conter management to let it scale better
           - H/W GRO cleanups
      - Intel (100G, ice)::
         - add support for ethtool reset
         - implement support for per TX queue H/W shaping
      - AMD/Solarflare:
         - implement per device queue stats support
      - Broadcom (bnxt):
         - improve wildcard l4proto on IPv4/IPv6 ntuple rules
      - Marvell Octeon:
         - Add representor support for each Resource Virtualization Unit
           (RVU) device.
      - Hisilicon:
         - add support for the BMC Gigabit Ethernet
      - IBM (EMAC):
         - driver cleanup and modernization
      - Cisco (VIC):
         - raise the queues number limit to 256

   - Ethernet virtual:
      - Google vNIC:
         - implement page pool support
      - macsec:
         - inherit lower device's features and TSO limits when
           offloading
      - virtio_net:
         - enable premapped mode by default
         - support for XDP socket(AF_XDP) zerocopy TX
      - wireguard:
         - set the TSO max size to be GSO_MAX_SIZE, to aggregate larger
           packets.

   - Ethernet NICs embedded and virtual:
      - Broadcom ASP:
         - enable software timestamping
      - Freescale:
         - add enetc4 PF driver
      - MediaTek: Airoha SoC:
         - implement BQL support
      - RealTek r8169:
         - enable TSO by default on r8168/r8125
         - implement extended ethtool stats
      - Renesas AVB:
         - enable TX checksum offload
      - Synopsys (stmmac):
         - support header splitting for vlan tagged packets
         - move common code for DWMAC4 and DWXGMAC into a separate FPE
           module.
         - add dwmac driver support for T-HEAD TH1520 SoC
      - Synopsys (xpcs):
         - driver refactor and cleanup
      - TI:
         - icssg_prueth: add VLAN offload support
      - Xilinx emaclite:
         - add clock support

   - Ethernet switches:
      - Microchip:
         - implement support for the lan969x Ethernet switch family
         - add LAN9646 switch support to KSZ DSA driver

   - Ethernet PHYs:
      - Marvel: 88q2x: enable auto negotiation
      - Microchip: add support for LAN865X Rev B1 and LAN867X Rev C1/C2

   - PTP:
      - Add support for the Amazon virtual clock device
      - Add PtP driver for s390 clocks

   - WiFi:
      - mac80211
         - EHT 1024 aggregation size for transmissions
         - new operation to indicate that a new interface is to be added
         - support radio separation of multi-band devices
         - move wireless extension spy implementation to libiw
      - Broadcom:
         - brcmfmac: optional LPO clock support
      - Microchip:
         - add support for Atmel WILC3000
      - Qualcomm (ath12k):
         - firmware coredump collection support
         - add debugfs support for a multitude of statistics
      - Qualcomm (ath5k):
         -  Arcadyan ARV45XX AR2417 & Gigaset SX76[23] AR241[34]A support
      - Realtek:
         - rtw88: 8821au and 8812au USB adapters support
         - rtw89: add thermal protection
         - rtw89: fine tune BT-coexsitence to improve user experience
         - rtw89: firmware secure boot for WiFi 6 chip

   - Bluetooth
      - add Qualcomm WCN785x support for ids Foxconn 0xe0fc/0xe0f3 and
        0x13d3:0x3623
      - add Realtek RTL8852BE support for id Foxconn 0xe123
      - add MediaTek MT7920 support for wireless module ids
      - btintel_pcie: add handshake between driver and firmware
      - btintel_pcie: add recovery mechanism
      - btnxpuart: add GPIO support to power save feature"

* tag 'net-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1475 commits)
  mm: page_frag: fix a compile error when kernel is not compiled
  Documentation: tipc: fix formatting issue in tipc.rst
  selftests: nic_performance: Add selftest for performance of NIC driver
  selftests: nic_link_layer: Add selftest case for speed and duplex states
  selftests: nic_link_layer: Add link layer selftest for NIC driver
  bnxt_en: Add FW trace coredump segments to the coredump
  bnxt_en: Add a new ethtool -W dump flag
  bnxt_en: Add 2 parameters to bnxt_fill_coredump_seg_hdr()
  bnxt_en: Add functions to copy host context memory
  bnxt_en: Do not free FW log context memory
  bnxt_en: Manage the FW trace context memory
  bnxt_en: Allocate backing store memory for FW trace logs
  bnxt_en: Add a 'force' parameter to bnxt_free_ctx_mem()
  bnxt_en: Refactor bnxt_free_ctx_mem()
  bnxt_en: Add mem_valid bit to struct bnxt_ctx_mem_type
  bnxt_en: Update firmware interface spec to 1.10.3.85
  selftests/bpf: Add some tests with sockmap SK_PASS
  bpf: fix recursive lock when verdict program return SK_PASS
  wireguard: device: support big tcp GSO
  wireguard: selftests: load nf_conntrack if not present
  ...

1 files changed, 85 insertions, 9 deletions

diff --git a/tools/testing/selftests/bpf/prog_tests/tc_netkit.c b/tools/testing/selftests/bpf/prog_tests/tc_netkit.c
index b9135720024cc..151a4210028f8 100644
--- a/tools/testing/selftests/bpf/prog_tests/tc_netkit.c
+++ b/tools/testing/selftests/bpf/prog_tests/tc_netkit.c
@@ -14,7 +14,9 @@
 #include "netlink_helpers.h"
 #include "tc_helpers.h"
 
-#define ICMP_ECHO 8
+#define MARK		42
+#define PRIO		0xeb9f
+#define ICMP_ECHO	8
 
 struct icmphdr {
 	__u8		type;
@@ -33,7 +35,7 @@ struct iplink_req {
 };
 
 static int create_netkit(int mode, int policy, int peer_policy, int *ifindex,
-			 bool same_netns)
+			 bool same_netns, int scrub, int peer_scrub)
 {
 	struct rtnl_handle rth = { .fd = -1 };
 	struct iplink_req req = {};
@@ -58,6 +60,8 @@ static int create_netkit(int mode, int policy, int peer_policy, int *ifindex,
 	data = addattr_nest(&req.n, sizeof(req), IFLA_INFO_DATA);
 	addattr32(&req.n, sizeof(req), IFLA_NETKIT_POLICY, policy);
 	addattr32(&req.n, sizeof(req), IFLA_NETKIT_PEER_POLICY, peer_policy);
+	addattr32(&req.n, sizeof(req), IFLA_NETKIT_SCRUB, scrub);
+	addattr32(&req.n, sizeof(req), IFLA_NETKIT_PEER_SCRUB, peer_scrub);
 	addattr32(&req.n, sizeof(req), IFLA_NETKIT_MODE, mode);
 	addattr_nest_end(&req.n, data);
 	addattr_nest_end(&req.n, linkinfo);
@@ -118,9 +122,9 @@ static void destroy_netkit(void)
 
 static int __send_icmp(__u32 dest)
 {
+	int sock, ret, mark = MARK, prio = PRIO;
 	struct sockaddr_in addr;
 	struct icmphdr icmp;
-	int sock, ret;
 
 	ret = write_sysctl("/proc/sys/net/ipv4/ping_group_range", "0 0");
 	if (!ASSERT_OK(ret, "write_sysctl(net.ipv4.ping_group_range)"))
@@ -135,6 +139,15 @@ static int __send_icmp(__u32 dest)
 	if (!ASSERT_OK(ret, "setsockopt(SO_BINDTODEVICE)"))
 		goto out;
 
+	ret = setsockopt(sock, SOL_SOCKET, SO_MARK, &mark, sizeof(mark));
+	if (!ASSERT_OK(ret, "setsockopt(SO_MARK)"))
+		goto out;
+
+	ret = setsockopt(sock, SOL_SOCKET, SO_PRIORITY,
+			 &prio, sizeof(prio));
+	if (!ASSERT_OK(ret, "setsockopt(SO_PRIORITY)"))
+		goto out;
+
 	memset(&addr, 0, sizeof(addr));
 	addr.sin_family = AF_INET;
 	addr.sin_addr.s_addr = htonl(dest);
@@ -171,7 +184,8 @@ void serial_test_tc_netkit_basic(void)
 	int err, ifindex;
 
 	err = create_netkit(NETKIT_L2, NETKIT_PASS, NETKIT_PASS,
-			    &ifindex, false);
+			    &ifindex, false, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT);
 	if (err)
 		return;
 
@@ -285,7 +299,8 @@ static void serial_test_tc_netkit_multi_links_target(int mode, int target)
 	int err, ifindex;
 
 	err = create_netkit(mode, NETKIT_PASS, NETKIT_PASS,
-			    &ifindex, false);
+			    &ifindex, false, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT);
 	if (err)
 		return;
 
@@ -413,7 +428,8 @@ static void serial_test_tc_netkit_multi_opts_target(int mode, int target)
 	int err, ifindex;
 
 	err = create_netkit(mode, NETKIT_PASS, NETKIT_PASS,
-			    &ifindex, false);
+			    &ifindex, false, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT);
 	if (err)
 		return;
 
@@ -527,7 +543,8 @@ void serial_test_tc_netkit_device(void)
 	int err, ifindex, ifindex2;
 
 	err = create_netkit(NETKIT_L3, NETKIT_PASS, NETKIT_PASS,
-			    &ifindex, true);
+			    &ifindex, true, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT);
 	if (err)
 		return;
 
@@ -638,7 +655,8 @@ static void serial_test_tc_netkit_neigh_links_target(int mode, int target)
 	int err, ifindex;
 
 	err = create_netkit(mode, NETKIT_PASS, NETKIT_PASS,
-			    &ifindex, false);
+			    &ifindex, false, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT);
 	if (err)
 		return;
 
@@ -715,7 +733,8 @@ static void serial_test_tc_netkit_pkt_type_mode(int mode)
 	struct bpf_link *link;
 
 	err = create_netkit(mode, NETKIT_PASS, NETKIT_PASS,
-			    &ifindex, true);
+			    &ifindex, true, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT);
 	if (err)
 		return;
 
@@ -779,3 +798,60 @@ void serial_test_tc_netkit_pkt_type(void)
 	serial_test_tc_netkit_pkt_type_mode(NETKIT_L2);
 	serial_test_tc_netkit_pkt_type_mode(NETKIT_L3);
 }
+
+static void serial_test_tc_netkit_scrub_type(int scrub)
+{
+	LIBBPF_OPTS(bpf_netkit_opts, optl);
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err, ifindex;
+
+	err = create_netkit(NETKIT_L2, NETKIT_PASS, NETKIT_PASS,
+			    &ifindex, false, scrub, scrub);
+	if (err)
+		return;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc8,
+		  BPF_NETKIT_PRIMARY), 0, "tc8_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 0);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+
+	ASSERT_EQ(skel->bss->seen_tc8, false, "seen_tc8");
+
+	link = bpf_program__attach_netkit(skel->progs.tc8, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc8 = link;
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 1);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_EQ(send_icmp(), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc8, true, "seen_tc8");
+	ASSERT_EQ(skel->bss->mark, scrub == NETKIT_SCRUB_NONE ? MARK : 0, "mark");
+	ASSERT_EQ(skel->bss->prio, scrub == NETKIT_SCRUB_NONE ? PRIO : 0, "prio");
+cleanup:
+	test_tc_link__destroy(skel);
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 0);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+	destroy_netkit();
+}
+
+void serial_test_tc_netkit_scrub(void)
+{
+	serial_test_tc_netkit_scrub_type(NETKIT_SCRUB_DEFAULT);
+	serial_test_tc_netkit_scrub_type(NETKIT_SCRUB_NONE);
+}