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, 225 insertions, 0 deletions

diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c
new file mode 100644
index 000000000..ce99ee245
--- /dev/null
+++ b/drivers/s390/cio/device_id.c
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  CCW device SENSE ID I/O handling.
+ *
+ *    Copyright IBM Corp. 2002, 2009
+ *    Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
+ *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *		 Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/ccwdev.h>
+#include <asm/setup.h>
+#include <asm/cio.h>
+#include <asm/diag.h>
+
+#include "cio.h"
+#include "cio_debug.h"
+#include "device.h"
+#include "io_sch.h"
+
+#define SENSE_ID_RETRIES	256
+#define SENSE_ID_TIMEOUT	(10 * HZ)
+#define SENSE_ID_MIN_LEN	4
+#define SENSE_ID_BASIC_LEN	7
+
+/**
+ * diag210_to_senseid - convert diag 0x210 data to sense id information
+ * @senseid: sense id
+ * @diag: diag 0x210 data
+ *
+ * Return 0 on success, non-zero otherwise.
+ */
+static int diag210_to_senseid(struct senseid *senseid, struct diag210 *diag)
+{
+	static struct {
+		int class, type, cu_type;
+	} vm_devices[] = {
+		{ 0x08, 0x01, 0x3480 },
+		{ 0x08, 0x02, 0x3430 },
+		{ 0x08, 0x10, 0x3420 },
+		{ 0x08, 0x42, 0x3424 },
+		{ 0x08, 0x44, 0x9348 },
+		{ 0x08, 0x81, 0x3490 },
+		{ 0x08, 0x82, 0x3422 },
+		{ 0x10, 0x41, 0x1403 },
+		{ 0x10, 0x42, 0x3211 },
+		{ 0x10, 0x43, 0x3203 },
+		{ 0x10, 0x45, 0x3800 },
+		{ 0x10, 0x47, 0x3262 },
+		{ 0x10, 0x48, 0x3820 },
+		{ 0x10, 0x49, 0x3800 },
+		{ 0x10, 0x4a, 0x4245 },
+		{ 0x10, 0x4b, 0x4248 },
+		{ 0x10, 0x4d, 0x3800 },
+		{ 0x10, 0x4e, 0x3820 },
+		{ 0x10, 0x4f, 0x3820 },
+		{ 0x10, 0x82, 0x2540 },
+		{ 0x10, 0x84, 0x3525 },
+		{ 0x20, 0x81, 0x2501 },
+		{ 0x20, 0x82, 0x2540 },
+		{ 0x20, 0x84, 0x3505 },
+		{ 0x40, 0x01, 0x3278 },
+		{ 0x40, 0x04, 0x3277 },
+		{ 0x40, 0x80, 0x2250 },
+		{ 0x40, 0xc0, 0x5080 },
+		{ 0x80, 0x00, 0x3215 },
+	};
+	int i;
+
+	/* Special case for osa devices. */
+	if (diag->vrdcvcla == 0x02 && diag->vrdcvtyp == 0x20) {
+		senseid->cu_type = 0x3088;
+		senseid->cu_model = 0x60;
+		senseid->reserved = 0xff;
+		return 0;
+	}
+	for (i = 0; i < ARRAY_SIZE(vm_devices); i++) {
+		if (diag->vrdcvcla == vm_devices[i].class &&
+		    diag->vrdcvtyp == vm_devices[i].type) {
+			senseid->cu_type = vm_devices[i].cu_type;
+			senseid->reserved = 0xff;
+			return 0;
+		}
+	}
+
+	return -ENODEV;
+}
+
+/**
+ * diag210_get_dev_info - retrieve device information via diag 0x210
+ * @cdev: ccw device
+ *
+ * Returns zero on success, non-zero otherwise.
+ */
+static int diag210_get_dev_info(struct ccw_device *cdev)
+{
+	struct ccw_dev_id *dev_id = &cdev->private->dev_id;
+	struct senseid *senseid = &cdev->private->dma_area->senseid;
+	struct diag210 diag_data;
+	int rc;
+
+	if (dev_id->ssid != 0)
+		return -ENODEV;
+	memset(&diag_data, 0, sizeof(diag_data));
+	diag_data.vrdcdvno	= dev_id->devno;
+	diag_data.vrdclen	= sizeof(diag_data);
+	rc = diag210(&diag_data);
+	CIO_TRACE_EVENT(4, "diag210");
+	CIO_HEX_EVENT(4, &rc, sizeof(rc));
+	CIO_HEX_EVENT(4, &diag_data, sizeof(diag_data));
+	if (rc != 0 && rc != 2)
+		goto err_failed;
+	if (diag210_to_senseid(senseid, &diag_data))
+		goto err_unknown;
+	return 0;
+
+err_unknown:
+	CIO_MSG_EVENT(0, "snsid: device 0.%x.%04x: unknown diag210 data\n",
+		      dev_id->ssid, dev_id->devno);
+	return -ENODEV;
+err_failed:
+	CIO_MSG_EVENT(0, "snsid: device 0.%x.%04x: diag210 failed (rc=%d)\n",
+		      dev_id->ssid, dev_id->devno, rc);
+	return -ENODEV;
+}
+
+/*
+ * Initialize SENSE ID data.
+ */
+static void snsid_init(struct ccw_device *cdev)
+{
+	cdev->private->flags.esid = 0;
+
+	memset(&cdev->private->dma_area->senseid, 0,
+	       sizeof(cdev->private->dma_area->senseid));
+	cdev->private->dma_area->senseid.cu_type = 0xffff;
+}
+
+/*
+ * Check for complete SENSE ID data.
+ */
+static int snsid_check(struct ccw_device *cdev, void *data)
+{
+	struct cmd_scsw *scsw = &cdev->private->dma_area->irb.scsw.cmd;
+	int len = sizeof(struct senseid) - scsw->count;
+
+	/* Check for incomplete SENSE ID data. */
+	if (len < SENSE_ID_MIN_LEN)
+		goto out_restart;
+	if (cdev->private->dma_area->senseid.cu_type == 0xffff)
+		goto out_restart;
+	/* Check for incompatible SENSE ID data. */
+	if (cdev->private->dma_area->senseid.reserved != 0xff)
+		return -EOPNOTSUPP;
+	/* Check for extended-identification information. */
+	if (len > SENSE_ID_BASIC_LEN)
+		cdev->private->flags.esid = 1;
+	return 0;
+
+out_restart:
+	snsid_init(cdev);
+	return -EAGAIN;
+}
+
+/*
+ * Process SENSE ID request result.
+ */
+static void snsid_callback(struct ccw_device *cdev, void *data, int rc)
+{
+	struct ccw_dev_id *id = &cdev->private->dev_id;
+	struct senseid *senseid = &cdev->private->dma_area->senseid;
+	int vm = 0;
+
+	if (rc && MACHINE_IS_VM) {
+		/* Try diag 0x210 fallback on z/VM. */
+		snsid_init(cdev);
+		if (diag210_get_dev_info(cdev) == 0) {
+			rc = 0;
+			vm = 1;
+		}
+	}
+	CIO_MSG_EVENT(2, "snsid: device 0.%x.%04x: rc=%d %04x/%02x "
+		      "%04x/%02x%s\n", id->ssid, id->devno, rc,
+		      senseid->cu_type, senseid->cu_model, senseid->dev_type,
+		      senseid->dev_model, vm ? " (diag210)" : "");
+	ccw_device_sense_id_done(cdev, rc);
+}
+
+/**
+ * ccw_device_sense_id_start - perform SENSE ID
+ * @cdev: ccw device
+ *
+ * Execute a SENSE ID channel program on @cdev to update its sense id
+ * information. When finished, call ccw_device_sense_id_done with a
+ * return code specifying the result.
+ */
+void ccw_device_sense_id_start(struct ccw_device *cdev)
+{
+	struct subchannel *sch = to_subchannel(cdev->dev.parent);
+	struct ccw_request *req = &cdev->private->req;
+	struct ccw1 *cp = cdev->private->dma_area->iccws;
+
+	CIO_TRACE_EVENT(4, "snsid");
+	CIO_HEX_EVENT(4, &cdev->private->dev_id, sizeof(cdev->private->dev_id));
+	/* Data setup. */
+	snsid_init(cdev);
+	/* Channel program setup. */
+	cp->cmd_code	= CCW_CMD_SENSE_ID;
+	cp->cda		= (u32)virt_to_phys(&cdev->private->dma_area->senseid);
+	cp->count	= sizeof(struct senseid);
+	cp->flags	= CCW_FLAG_SLI;
+	/* Request setup. */
+	memset(req, 0, sizeof(*req));
+	req->cp		= cp;
+	req->timeout	= SENSE_ID_TIMEOUT;
+	req->maxretries	= SENSE_ID_RETRIES;
+	req->lpm	= sch->schib.pmcw.pam & sch->opm;
+	req->check	= snsid_check;
+	req->callback	= snsid_callback;
+	ccw_request_start(cdev);
+}