Merge tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
 "Core:

   - Introduce a config option to tweak MAX_SKB_FRAGS. Increasing the
     default value allows for better BIG TCP performances

   - Reduce compound page head access for zero-copy data transfers

   - RPS/RFS improvements, avoiding unneeded NET_RX_SOFTIRQ when
     possible

   - Threaded NAPI improvements, adding defer skb free support and
     unneeded softirq avoidance

   - Address dst_entry reference count scalability issues, via false
     sharing avoidance and optimize refcount tracking

   - Add lockless accesses annotation to sk_err[_soft]

   - Optimize again the skb struct layout

   - Extends the skb drop reasons to make it usable by multiple
     subsystems

   - Better const qualifier awareness for socket casts

  BPF:

   - Add skb and XDP typed dynptrs which allow BPF programs for more
     ergonomic and less brittle iteration through data and
     variable-sized accesses

   - Add a new BPF netfilter program type and minimal support to hook
     BPF programs to netfilter hooks such as prerouting or forward

   - Add more precise memory usage reporting for all BPF map types

   - Adds support for using {FOU,GUE} encap with an ipip device
     operating in collect_md mode and add a set of BPF kfuncs for
     controlling encap params

   - Allow BPF programs to detect at load time whether a particular
     kfunc exists or not, and also add support for this in light
     skeleton

   - Bigger batch of BPF verifier improvements to prepare for upcoming
     BPF open-coded iterators allowing for less restrictive looping
     capabilities

   - Rework RCU enforcement in the verifier, add kptr_rcu and enforce
     BPF programs to NULL-check before passing such pointers into kfunc

   - Add support for kptrs in percpu hashmaps, percpu LRU hashmaps and
     in local storage maps

   - Enable RCU semantics for task BPF kptrs and allow referenced kptr
     tasks to be stored in BPF maps

   - Add support for refcounted local kptrs to the verifier for allowing
     shared ownership, useful for adding a node to both the BPF list and
     rbtree

   - Add BPF verifier support for ST instructions in
     convert_ctx_access() which will help new -mcpu=v4 clang flag to
     start emitting them

   - Add ARM32 USDT support to libbpf

   - Improve bpftool's visual program dump which produces the control
     flow graph in a DOT format by adding C source inline annotations

  Protocols:

   - IPv4: Allow adding to IPv4 address a 'protocol' tag. Such value
     indicates the provenance of the IP address

   - IPv6: optimize route lookup, dropping unneeded R/W lock acquisition

   - Add the handshake upcall mechanism, allowing the user-space to
     implement generic TLS handshake on kernel's behalf

   - Bridge: support per-{Port, VLAN} neighbor suppression, increasing
     resilience to nodes failures

   - SCTP: add support for Fair Capacity and Weighted Fair Queueing
     schedulers

   - MPTCP: delay first subflow allocation up to its first usage. This
     will allow for later better LSM interaction

   - xfrm: Remove inner/outer modes from input/output path. These are
     not needed anymore

   - WiFi:
      - reduced neighbor report (RNR) handling for AP mode
      - HW timestamping support
      - support for randomized auth/deauth TA for PASN privacy
      - per-link debugfs for multi-link
      - TC offload support for mac80211 drivers
      - mac80211 mesh fast-xmit and fast-rx support
      - enable Wi-Fi 7 (EHT) mesh support

  Netfilter:

   - Add nf_tables 'brouting' support, to force a packet to be routed
     instead of being bridged

   - Update bridge netfilter and ovs conntrack helpers to handle IPv6
     Jumbo packets properly, i.e. fetch the packet length from
     hop-by-hop extension header. This is needed for BIT TCP support

   - The iptables 32bit compat interface isn't compiled in by default
     anymore

   - Move ip(6)tables builtin icmp matches to the udptcp one. This has
     the advantage that icmp/icmpv6 match doesn't load the
     iptables/ip6tables modules anymore when iptables-nft is used

   - Extended netlink error report for netdevice in flowtables and
     netdev/chains. Allow for incrementally add/delete devices to netdev
     basechain. Allow to create netdev chain without device

  Driver API:

   - Remove redundant Device Control Error Reporting Enable, as PCI core
     has already error reporting enabled at enumeration time

   - Move Multicast DB netlink handlers to core, allowing devices other
     then bridge to use them

   - Allow the page_pool to directly recycle the pages from safely
     localized NAPI

   - Implement lockless TX queue stop/wake combo macros, allowing for
     further code de-duplication and sanitization

   - Add YNL support for user headers and struct attrs

   - Add partial YNL specification for devlink

   - Add partial YNL specification for ethtool

   - Add tc-mqprio and tc-taprio support for preemptible traffic classes

   - Add tx push buf len param to ethtool, specifies the maximum number
     of bytes of a transmitted packet a driver can push directly to the
     underlying device

   - Add basic LED support for switch/phy

   - Add NAPI documentation, stop relaying on external links

   - Convert dsa_master_ioctl() to netdev notifier. This is a
     preparatory work to make the hardware timestamping layer selectable
     by user space

   - Add transceiver support and improve the error messages for CAN-FD
     controllers

  New hardware / drivers:

   - Ethernet:
      - AMD/Pensando core device support
      - MediaTek MT7981 SoC
      - MediaTek MT7988 SoC
      - Broadcom BCM53134 embedded switch
      - Texas Instruments CPSW9G ethernet switch
      - Qualcomm EMAC3 DWMAC ethernet
      - StarFive JH7110 SoC
      - NXP CBTX ethernet PHY

   - WiFi:
      - Apple M1 Pro/Max devices
      - RealTek rtl8710bu/rtl8188gu
      - RealTek rtl8822bs, rtl8822cs and rtl8821cs SDIO chipset

   - Bluetooth:
      - Realtek RTL8821CS, RTL8851B, RTL8852BS
      - Mediatek MT7663, MT7922
      - NXP w8997
      - Actions Semi ATS2851
      - QTI WCN6855
      - Marvell 88W8997

   - Can:
      - STMicroelectronics bxcan stm32f429

  Drivers:

   - Ethernet NICs:
      - Intel (1G, icg):
         - add tracking and reporting of QBV config errors
         - add support for configuring max SDU for each Tx queue
      - Intel (100G, ice):
         - refactor mailbox overflow detection to support Scalable IOV
         - GNSS interface optimization
      - Intel (i40e):
         - support XDP multi-buffer
      - nVidia/Mellanox:
         - add the support for linux bridge multicast offload
         - enable TC offload for egress and engress MACVLAN over bond
         - add support for VxLAN GBP encap/decap flows offload
         - extend packet offload to fully support libreswan
         - support tunnel mode in mlx5 IPsec packet offload
         - extend XDP multi-buffer support
         - support MACsec VLAN offload
         - add support for dynamic msix vectors allocation
         - drop RX page_cache and fully use page_pool
         - implement thermal zone to report NIC temperature
      - Netronome/Corigine:
         - add support for multi-zone conntrack offload
      - Solarflare/Xilinx:
         - support offloading TC VLAN push/pop actions to the MAE
         - support TC decap rules
         - support unicast PTP

   - Other NICs:
      - Broadcom (bnxt): enforce software based freq adjustments only on
        shared PHC NIC
      - RealTek (r8169): refactor to addess ASPM issues during NAPI poll
      - Micrel (lan8841): add support for PTP_PF_PEROUT
      - Cadence (macb): enable PTP unicast
      - Engleder (tsnep): add XDP socket zero-copy support
      - virtio-net: implement exact header length guest feature
      - veth: add page_pool support for page recycling
      - vxlan: add MDB data path support
      - gve: add XDP support for GQI-QPL format
      - geneve: accept every ethertype
      - macvlan: allow some packets to bypass broadcast queue
      - mana: add support for jumbo frame

   - Ethernet high-speed switches:
      - Microchip (sparx5): Add support for TC flower templates

   - Ethernet embedded switches:
      - Broadcom (b54):
         - configure 6318 and 63268 RGMII ports
      - Marvell (mv88e6xxx):
         - faster C45 bus scan
      - Microchip:
         - lan966x:
            - add support for IS1 VCAP
            - better TX/RX from/to CPU performances
         - ksz9477: add ETS Qdisc support
         - ksz8: enhance static MAC table operations and error handling
         - sama7g5: add PTP capability
      - NXP (ocelot):
         - add support for external ports
         - add support for preemptible traffic classes
      - Texas Instruments:
         - add CPSWxG SGMII support for J7200 and J721E

   - Intel WiFi (iwlwifi):
      - preparation for Wi-Fi 7 EHT and multi-link support
      - EHT (Wi-Fi 7) sniffer support
      - hardware timestamping support for some devices/firwmares
      - TX beacon protection on newer hardware

   - Qualcomm 802.11ax WiFi (ath11k):
      - MU-MIMO parameters support
      - ack signal support for management packets

   - RealTek WiFi (rtw88):
      - SDIO bus support
      - better support for some SDIO devices (e.g. MAC address from
        efuse)

   - RealTek WiFi (rtw89):
      - HW scan support for 8852b
      - better support for 6 GHz scanning
      - support for various newer firmware APIs
      - framework firmware backwards compatibility

   - MediaTek WiFi (mt76):
      - P2P support
      - mesh A-MSDU support
      - EHT (Wi-Fi 7) support
      - coredump support"

* tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2078 commits)
  net: phy: hide the PHYLIB_LEDS knob
  net: phy: marvell-88x2222: remove unnecessary (void*) conversions
  tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp.
  net: amd: Fix link leak when verifying config failed
  net: phy: marvell: Fix inconsistent indenting in led_blink_set
  lan966x: Don't use xdp_frame when action is XDP_TX
  tsnep: Add XDP socket zero-copy TX support
  tsnep: Add XDP socket zero-copy RX support
  tsnep: Move skb receive action to separate function
  tsnep: Add functions for queue enable/disable
  tsnep: Rework TX/RX queue initialization
  tsnep: Replace modulo operation with mask
  net: phy: dp83867: Add led_brightness_set support
  net: phy: Fix reading LED reg property
  drivers: nfc: nfcsim: remove return value check of `dev_dir`
  net: phy: dp83867: Remove unnecessary (void*) conversions
  net: ethtool: coalesce: try to make user settings stick twice
  net: mana: Check if netdev/napi_alloc_frag returns single page
  net: mana: Rename mana_refill_rxoob and remove some empty lines
  net: veth: add page_pool stats
  ...

1 files changed, 43 insertions, 24 deletions

diff --git a/tools/testing/selftests/bpf/xdp_features.c b/tools/testing/selftests/bpf/xdp_features.c
index fce12165213b..b449788fbd39 100644
--- a/tools/testing/selftests/bpf/xdp_features.c
+++ b/tools/testing/selftests/bpf/xdp_features.c
@@ -25,6 +25,7 @@
 
 static struct env {
 	bool verbosity;
+	char ifname[IF_NAMESIZE];
 	int ifindex;
 	bool is_tester;
 	struct {
@@ -151,20 +152,26 @@ static error_t parse_arg(int key, char *arg, struct argp_state *state)
 	case 'D':
 		if (make_sockaddr(AF_INET6, arg, DUT_ECHO_PORT,
 				  &env.dut_addr, NULL)) {
-			fprintf(stderr, "Invalid DUT address: %s\n", arg);
+			fprintf(stderr,
+				"Invalid address assigned to the Device Under Test: %s\n",
+				arg);
 			return ARGP_ERR_UNKNOWN;
 		}
 		break;
 	case 'C':
 		if (make_sockaddr(AF_INET6, arg, DUT_CTRL_PORT,
 				  &env.dut_ctrl_addr, NULL)) {
-			fprintf(stderr, "Invalid DUT CTRL address: %s\n", arg);
+			fprintf(stderr,
+				"Invalid address assigned to the Device Under Test: %s\n",
+				arg);
 			return ARGP_ERR_UNKNOWN;
 		}
 		break;
 	case 'T':
 		if (make_sockaddr(AF_INET6, arg, 0, &env.tester_addr, NULL)) {
-			fprintf(stderr, "Invalid Tester address: %s\n", arg);
+			fprintf(stderr,
+				"Invalid address assigned to the Tester device: %s\n",
+				arg);
 			return ARGP_ERR_UNKNOWN;
 		}
 		break;
@@ -179,7 +186,7 @@ static error_t parse_arg(int key, char *arg, struct argp_state *state)
 		env.ifindex = if_nametoindex(arg);
 		if (!env.ifindex)
 			env.ifindex = strtoul(arg, NULL, 0);
-		if (!env.ifindex) {
+		if (!env.ifindex || !if_indextoname(env.ifindex, env.ifname)) {
 			fprintf(stderr,
 				"Bad interface index or name (%d): %s\n",
 				errno, strerror(errno));
@@ -205,6 +212,7 @@ static void set_env_default(void)
 	env.feature.drv_feature = NETDEV_XDP_ACT_NDO_XMIT;
 	env.feature.action = -EINVAL;
 	env.ifindex = -ENODEV;
+	strcpy(env.ifname, "unknown");
 	make_sockaddr(AF_INET6, "::ffff:127.0.0.1", DUT_CTRL_PORT,
 		      &env.dut_ctrl_addr, NULL);
 	make_sockaddr(AF_INET6, "::ffff:127.0.0.1", DUT_ECHO_PORT,
@@ -248,15 +256,18 @@ static int dut_run_echo_thread(pthread_t *t, int *sockfd)
 	sockfd = start_reuseport_server(AF_INET6, SOCK_DGRAM, NULL,
 					DUT_ECHO_PORT, 0, 1);
 	if (!sockfd) {
-		fprintf(stderr, "Failed to create echo socket\n");
+		fprintf(stderr,
+			"Failed creating data UDP socket on device %s\n",
+			env.ifname);
 		return -errno;
 	}
 
 	/* start echo channel */
 	err = pthread_create(t, NULL, dut_echo_thread, sockfd);
 	if (err) {
-		fprintf(stderr, "Failed creating dut_echo thread: %s\n",
-			strerror(-err));
+		fprintf(stderr,
+			"Failed creating data UDP thread on device %s: %s\n",
+			env.ifname, strerror(-err));
 		free_fds(sockfd, 1);
 		return -EINVAL;
 	}
@@ -320,9 +331,8 @@ static int dut_attach_xdp_prog(struct xdp_features *skel, int flags)
 
 	err = bpf_xdp_attach(env.ifindex, bpf_program__fd(prog), flags, NULL);
 	if (err)
-		fprintf(stderr,
-			"Failed to attach XDP program to ifindex %d\n",
-			env.ifindex);
+		fprintf(stderr, "Failed attaching XDP program to device %s\n",
+			env.ifname);
 	return err;
 }
 
@@ -358,13 +368,16 @@ static int dut_run(struct xdp_features *skel)
 	sockfd = start_reuseport_server(AF_INET6, SOCK_STREAM, NULL,
 					DUT_CTRL_PORT, 0, 1);
 	if (!sockfd) {
-		fprintf(stderr, "Failed to create DUT socket\n");
+		fprintf(stderr,
+			"Failed creating control socket on device %s\n", env.ifname);
 		return -errno;
 	}
 
 	ctrl_sockfd = accept(*sockfd, (struct sockaddr *)&ctrl_addr, &addrlen);
 	if (ctrl_sockfd < 0) {
-		fprintf(stderr, "Failed to accept connection on DUT socket\n");
+		fprintf(stderr,
+			"Failed accepting connections on device %s control socket\n",
+			env.ifname);
 		free_fds(sockfd, 1);
 		return -errno;
 	}
@@ -422,8 +435,8 @@ static int dut_run(struct xdp_features *skel)
 					    &opts);
 			if (err) {
 				fprintf(stderr,
-					"Failed to query XDP cap for ifindex %d\n",
-					env.ifindex);
+					"Failed querying XDP cap for device %s\n",
+					env.ifname);
 				goto end_thread;
 			}
 
@@ -447,7 +460,8 @@ static int dut_run(struct xdp_features *skel)
 						   &key, sizeof(key),
 						   &val, sizeof(val), 0);
 			if (err) {
-				fprintf(stderr, "bpf_map_lookup_elem failed\n");
+				fprintf(stderr,
+					"bpf_map_lookup_elem failed (%d)\n", err);
 				goto end_thread;
 			}
 
@@ -489,7 +503,7 @@ static bool tester_collect_detected_cap(struct xdp_features *skel,
 	err = bpf_map__lookup_elem(skel->maps.stats, &key, sizeof(key),
 				   &val, sizeof(val), 0);
 	if (err) {
-		fprintf(stderr, "bpf_map_lookup_elem failed\n");
+		fprintf(stderr, "bpf_map_lookup_elem failed (%d)\n", err);
 		return false;
 	}
 
@@ -540,7 +554,9 @@ static int send_echo_msg(void)
 
 	sockfd = socket(AF_INET6, SOCK_DGRAM, 0);
 	if (sockfd < 0) {
-		fprintf(stderr, "Failed to create echo socket\n");
+		fprintf(stderr,
+			"Failed creating data UDP socket on device %s\n",
+			env.ifname);
 		return -errno;
 	}
 
@@ -565,7 +581,8 @@ static int tester_run(struct xdp_features *skel)
 
 	sockfd = socket(AF_INET6, SOCK_STREAM, 0);
 	if (sockfd < 0) {
-		fprintf(stderr, "Failed to create tester socket\n");
+		fprintf(stderr,
+			"Failed creating tester service control socket\n");
 		return -errno;
 	}
 
@@ -575,7 +592,8 @@ static int tester_run(struct xdp_features *skel)
 	err = connect(sockfd, (struct sockaddr *)&env.dut_ctrl_addr,
 		      sizeof(env.dut_ctrl_addr));
 	if (err) {
-		fprintf(stderr, "Failed to connect to the DUT\n");
+		fprintf(stderr,
+			"Failed connecting to the Device Under Test control socket\n");
 		return -errno;
 	}
 
@@ -596,8 +614,8 @@ static int tester_run(struct xdp_features *skel)
 
 	err = bpf_xdp_attach(env.ifindex, bpf_program__fd(prog), flags, NULL);
 	if (err) {
-		fprintf(stderr, "Failed to attach XDP program to ifindex %d\n",
-			env.ifindex);
+		fprintf(stderr, "Failed attaching XDP program to device %s\n",
+			env.ifname);
 		goto out;
 	}
 
@@ -653,7 +671,7 @@ int main(int argc, char **argv)
 		return err;
 
 	if (env.ifindex < 0) {
-		fprintf(stderr, "Invalid ifindex\n");
+		fprintf(stderr, "Invalid device name %s\n", env.ifname);
 		return -ENODEV;
 	}
 
@@ -684,11 +702,12 @@ int main(int argc, char **argv)
 
 	if (env.is_tester) {
 		/* Tester */
-		fprintf(stdout, "Starting tester on device %d\n", env.ifindex);
+		fprintf(stdout, "Starting tester service on device %s\n",
+			env.ifname);
 		err = tester_run(skel);
 	} else {
 		/* DUT */
-		fprintf(stdout, "Starting DUT on device %d\n", env.ifindex);
+		fprintf(stdout, "Starting test on device %s\n", env.ifname);
 		err = dut_run(skel);
 	}