Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 467 insertions, 0 deletions

diff --git a/tools/usb/usbip/libsrc/vhci_driver.c b/tools/usb/usbip/libsrc/vhci_driver.c
new file mode 100644
index 000000000..8159fd986
--- /dev/null
+++ b/tools/usb/usbip/libsrc/vhci_driver.c
@@ -0,0 +1,467 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2007 Takahiro Hirofuchi
+ */
+
+#include "usbip_common.h"
+#include "vhci_driver.h"
+#include <limits.h>
+#include <netdb.h>
+#include <libudev.h>
+#include <dirent.h>
+#include "sysfs_utils.h"
+
+#undef  PROGNAME
+#define PROGNAME "libusbip"
+
+struct usbip_vhci_driver *vhci_driver;
+struct udev *udev_context;
+
+static struct usbip_imported_device *
+imported_device_init(struct usbip_imported_device *idev, char *busid)
+{
+	struct udev_device *sudev;
+
+	sudev = udev_device_new_from_subsystem_sysname(udev_context,
+						       "usb", busid);
+	if (!sudev) {
+		dbg("udev_device_new_from_subsystem_sysname failed: %s", busid);
+		goto err;
+	}
+	read_usb_device(sudev, &idev->udev);
+	udev_device_unref(sudev);
+
+	return idev;
+
+err:
+	return NULL;
+}
+
+static int parse_status(const char *value)
+{
+	int ret = 0;
+	char *c;
+
+	/* skip a header line */
+	c = strchr(value, '\n');
+	if (!c)
+		return -1;
+	c++;
+
+	while (*c != '\0') {
+		int port, status, speed, devid;
+		int sockfd;
+		char lbusid[SYSFS_BUS_ID_SIZE];
+		struct usbip_imported_device *idev;
+		char hub[3];
+
+		ret = sscanf(c, "%2s  %d %d %d %x %u %31s\n",
+				hub, &port, &status, &speed,
+				&devid, &sockfd, lbusid);
+
+		if (ret < 5) {
+			dbg("sscanf failed: %d", ret);
+			BUG();
+		}
+
+		dbg("hub %s port %d status %d speed %d devid %x",
+				hub, port, status, speed, devid);
+		dbg("sockfd %u lbusid %s", sockfd, lbusid);
+
+		/* if a device is connected, look at it */
+		idev = &vhci_driver->idev[port];
+		memset(idev, 0, sizeof(*idev));
+
+		if (strncmp("hs", hub, 2) == 0)
+			idev->hub = HUB_SPEED_HIGH;
+		else /* strncmp("ss", hub, 2) == 0 */
+			idev->hub = HUB_SPEED_SUPER;
+
+		idev->port	= port;
+		idev->status	= status;
+
+		idev->devid	= devid;
+
+		idev->busnum	= (devid >> 16);
+		idev->devnum	= (devid & 0x0000ffff);
+
+		if (idev->status != VDEV_ST_NULL
+		    && idev->status != VDEV_ST_NOTASSIGNED) {
+			idev = imported_device_init(idev, lbusid);
+			if (!idev) {
+				dbg("imported_device_init failed");
+				return -1;
+			}
+		}
+
+		/* go to the next line */
+		c = strchr(c, '\n');
+		if (!c)
+			break;
+		c++;
+	}
+
+	dbg("exit");
+
+	return 0;
+}
+
+#define MAX_STATUS_NAME 18
+
+static int refresh_imported_device_list(void)
+{
+	const char *attr_status;
+	char status[MAX_STATUS_NAME+1] = "status";
+	int i, ret;
+
+	for (i = 0; i < vhci_driver->ncontrollers; i++) {
+		if (i > 0)
+			snprintf(status, sizeof(status), "status.%d", i);
+
+		attr_status = udev_device_get_sysattr_value(vhci_driver->hc_device,
+							    status);
+		if (!attr_status) {
+			err("udev_device_get_sysattr_value failed");
+			return -1;
+		}
+
+		dbg("controller %d", i);
+
+		ret = parse_status(attr_status);
+		if (ret != 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int get_nports(struct udev_device *hc_device)
+{
+	const char *attr_nports;
+
+	attr_nports = udev_device_get_sysattr_value(hc_device, "nports");
+	if (!attr_nports) {
+		err("udev_device_get_sysattr_value nports failed");
+		return -1;
+	}
+
+	return (int)strtoul(attr_nports, NULL, 10);
+}
+
+static int vhci_hcd_filter(const struct dirent *dirent)
+{
+	return !strncmp(dirent->d_name, "vhci_hcd.", 9);
+}
+
+static int get_ncontrollers(void)
+{
+	struct dirent **namelist;
+	struct udev_device *platform;
+	int n;
+
+	platform = udev_device_get_parent(vhci_driver->hc_device);
+	if (platform == NULL)
+		return -1;
+
+	n = scandir(udev_device_get_syspath(platform), &namelist, vhci_hcd_filter, NULL);
+	if (n < 0)
+		err("scandir failed");
+	else {
+		for (int i = 0; i < n; i++)
+			free(namelist[i]);
+		free(namelist);
+	}
+
+	return n;
+}
+
+/*
+ * Read the given port's record.
+ *
+ * To avoid buffer overflow we will read the entire line and
+ * validate each part's size. The initial buffer is padded by 4 to
+ * accommodate the 2 spaces, 1 newline and an additional character
+ * which is needed to properly validate the 3rd part without it being
+ * truncated to an acceptable length.
+ */
+static int read_record(int rhport, char *host, unsigned long host_len,
+		char *port, unsigned long port_len, char *busid)
+{
+	int part;
+	FILE *file;
+	char path[PATH_MAX+1];
+	char *buffer, *start, *end;
+	char delim[] = {' ', ' ', '\n'};
+	int max_len[] = {(int)host_len, (int)port_len, SYSFS_BUS_ID_SIZE};
+	size_t buffer_len = host_len + port_len + SYSFS_BUS_ID_SIZE + 4;
+
+	buffer = malloc(buffer_len);
+	if (!buffer)
+		return -1;
+
+	snprintf(path, PATH_MAX, VHCI_STATE_PATH"/port%d", rhport);
+
+	file = fopen(path, "r");
+	if (!file) {
+		err("fopen");
+		free(buffer);
+		return -1;
+	}
+
+	if (fgets(buffer, buffer_len, file) == NULL) {
+		err("fgets");
+		free(buffer);
+		fclose(file);
+		return -1;
+	}
+	fclose(file);
+
+	/* validate the length of each of the 3 parts */
+	start = buffer;
+	for (part = 0; part < 3; part++) {
+		end = strchr(start, delim[part]);
+		if (end == NULL || (end - start) > max_len[part]) {
+			free(buffer);
+			return -1;
+		}
+		start = end + 1;
+	}
+
+	if (sscanf(buffer, "%s %s %s\n", host, port, busid) != 3) {
+		err("sscanf");
+		free(buffer);
+		return -1;
+	}
+
+	free(buffer);
+
+	return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int usbip_vhci_driver_open(void)
+{
+	int nports;
+	struct udev_device *hc_device;
+
+	udev_context = udev_new();
+	if (!udev_context) {
+		err("udev_new failed");
+		return -1;
+	}
+
+	/* will be freed in usbip_driver_close() */
+	hc_device =
+		udev_device_new_from_subsystem_sysname(udev_context,
+						       USBIP_VHCI_BUS_TYPE,
+						       USBIP_VHCI_DEVICE_NAME);
+	if (!hc_device) {
+		err("udev_device_new_from_subsystem_sysname failed");
+		goto err;
+	}
+
+	nports = get_nports(hc_device);
+	if (nports <= 0) {
+		err("no available ports");
+		goto err;
+	}
+	dbg("available ports: %d", nports);
+
+	vhci_driver = calloc(1, sizeof(struct usbip_vhci_driver) +
+			nports * sizeof(struct usbip_imported_device));
+	if (!vhci_driver) {
+		err("vhci_driver allocation failed");
+		goto err;
+	}
+
+	vhci_driver->nports = nports;
+	vhci_driver->hc_device = hc_device;
+	vhci_driver->ncontrollers = get_ncontrollers();
+	dbg("available controllers: %d", vhci_driver->ncontrollers);
+
+	if (vhci_driver->ncontrollers <=0) {
+		err("no available usb controllers");
+		goto err;
+	}
+
+	if (refresh_imported_device_list())
+		goto err;
+
+	return 0;
+
+err:
+	udev_device_unref(hc_device);
+
+	if (vhci_driver)
+		free(vhci_driver);
+
+	vhci_driver = NULL;
+
+	udev_unref(udev_context);
+
+	return -1;
+}
+
+
+void usbip_vhci_driver_close(void)
+{
+	if (!vhci_driver)
+		return;
+
+	udev_device_unref(vhci_driver->hc_device);
+
+	free(vhci_driver);
+
+	vhci_driver = NULL;
+
+	udev_unref(udev_context);
+}
+
+
+int usbip_vhci_refresh_device_list(void)
+{
+
+	if (refresh_imported_device_list())
+		goto err;
+
+	return 0;
+err:
+	dbg("failed to refresh device list");
+	return -1;
+}
+
+
+int usbip_vhci_get_free_port(uint32_t speed)
+{
+	for (int i = 0; i < vhci_driver->nports; i++) {
+
+		switch (speed) {
+		case	USB_SPEED_SUPER:
+			if (vhci_driver->idev[i].hub != HUB_SPEED_SUPER)
+				continue;
+		break;
+		default:
+			if (vhci_driver->idev[i].hub != HUB_SPEED_HIGH)
+				continue;
+		break;
+		}
+
+		if (vhci_driver->idev[i].status == VDEV_ST_NULL)
+			return vhci_driver->idev[i].port;
+	}
+
+	return -1;
+}
+
+int usbip_vhci_attach_device2(uint8_t port, int sockfd, uint32_t devid,
+		uint32_t speed) {
+	char buff[200]; /* what size should be ? */
+	char attach_attr_path[SYSFS_PATH_MAX];
+	char attr_attach[] = "attach";
+	const char *path;
+	int ret;
+
+	snprintf(buff, sizeof(buff), "%u %d %u %u",
+			port, sockfd, devid, speed);
+	dbg("writing: %s", buff);
+
+	path = udev_device_get_syspath(vhci_driver->hc_device);
+	snprintf(attach_attr_path, sizeof(attach_attr_path), "%s/%s",
+		 path, attr_attach);
+	dbg("attach attribute path: %s", attach_attr_path);
+
+	ret = write_sysfs_attribute(attach_attr_path, buff, strlen(buff));
+	if (ret < 0) {
+		dbg("write_sysfs_attribute failed");
+		return -1;
+	}
+
+	dbg("attached port: %d", port);
+
+	return 0;
+}
+
+static unsigned long get_devid(uint8_t busnum, uint8_t devnum)
+{
+	return (busnum << 16) | devnum;
+}
+
+/* will be removed */
+int usbip_vhci_attach_device(uint8_t port, int sockfd, uint8_t busnum,
+		uint8_t devnum, uint32_t speed)
+{
+	int devid = get_devid(busnum, devnum);
+
+	return usbip_vhci_attach_device2(port, sockfd, devid, speed);
+}
+
+int usbip_vhci_detach_device(uint8_t port)
+{
+	char detach_attr_path[SYSFS_PATH_MAX];
+	char attr_detach[] = "detach";
+	char buff[200]; /* what size should be ? */
+	const char *path;
+	int ret;
+
+	snprintf(buff, sizeof(buff), "%u", port);
+	dbg("writing: %s", buff);
+
+	path = udev_device_get_syspath(vhci_driver->hc_device);
+	snprintf(detach_attr_path, sizeof(detach_attr_path), "%s/%s",
+		 path, attr_detach);
+	dbg("detach attribute path: %s", detach_attr_path);
+
+	ret = write_sysfs_attribute(detach_attr_path, buff, strlen(buff));
+	if (ret < 0) {
+		dbg("write_sysfs_attribute failed");
+		return -1;
+	}
+
+	dbg("detached port: %d", port);
+
+	return 0;
+}
+
+int usbip_vhci_imported_device_dump(struct usbip_imported_device *idev)
+{
+	char product_name[100];
+	char host[NI_MAXHOST] = "unknown host";
+	char serv[NI_MAXSERV] = "unknown port";
+	char remote_busid[SYSFS_BUS_ID_SIZE];
+	int ret;
+	int read_record_error = 0;
+
+	if (idev->status == VDEV_ST_NULL || idev->status == VDEV_ST_NOTASSIGNED)
+		return 0;
+
+	ret = read_record(idev->port, host, sizeof(host), serv, sizeof(serv),
+			  remote_busid);
+	if (ret) {
+		err("read_record");
+		read_record_error = 1;
+	}
+
+	printf("Port %02d: <%s> at %s\n", idev->port,
+	       usbip_status_string(idev->status),
+	       usbip_speed_string(idev->udev.speed));
+
+	usbip_names_get_product(product_name, sizeof(product_name),
+				idev->udev.idVendor, idev->udev.idProduct);
+
+	printf("       %s\n",  product_name);
+
+	if (!read_record_error) {
+		printf("%10s -> usbip://%s:%s/%s\n", idev->udev.busid,
+		       host, serv, remote_busid);
+		printf("%10s -> remote bus/dev %03d/%03d\n", " ",
+		       idev->busnum, idev->devnum);
+	} else {
+		printf("%10s -> unknown host, remote port and remote busid\n",
+		       idev->udev.busid);
+		printf("%10s -> remote bus/dev %03d/%03d\n", " ",
+		       idev->busnum, idev->devnum);
+	}
+
+	return 0;
+}