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, 247 insertions, 0 deletions

diff --git a/drivers/soc/fsl/qbman/qman_test_api.c b/drivers/soc/fsl/qbman/qman_test_api.c
new file mode 100644
index 000000000..28fbddc3c
--- /dev/null
+++ b/drivers/soc/fsl/qbman/qman_test_api.c
@@ -0,0 +1,247 @@
+/* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *	 notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *	 notice, this list of conditions and the following disclaimer in the
+ *	 documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *	 names of its contributors may be used to endorse or promote products
+ *	 derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "qman_test.h"
+
+#define CGR_ID		27
+#define POOL_ID		2
+#define FQ_FLAGS	QMAN_FQ_FLAG_DYNAMIC_FQID
+#define NUM_ENQUEUES	10
+#define NUM_PARTIAL	4
+#define PORTAL_SDQCR	(QM_SDQCR_SOURCE_CHANNELS | \
+			QM_SDQCR_TYPE_PRIO_QOS | \
+			QM_SDQCR_TOKEN_SET(0x98) | \
+			QM_SDQCR_CHANNELS_DEDICATED | \
+			QM_SDQCR_CHANNELS_POOL(POOL_ID))
+#define PORTAL_OPAQUE	((void *)0xf00dbeef)
+#define VDQCR_FLAGS	(QMAN_VOLATILE_FLAG_WAIT | QMAN_VOLATILE_FLAG_FINISH)
+
+static enum qman_cb_dqrr_result cb_dqrr(struct qman_portal *,
+					struct qman_fq *,
+					const struct qm_dqrr_entry *,
+					bool sched_napi);
+static void cb_ern(struct qman_portal *, struct qman_fq *,
+		   const union qm_mr_entry *);
+static void cb_fqs(struct qman_portal *, struct qman_fq *,
+		   const union qm_mr_entry *);
+
+static struct qm_fd fd, fd_dq;
+static struct qman_fq fq_base = {
+	.cb.dqrr = cb_dqrr,
+	.cb.ern = cb_ern,
+	.cb.fqs = cb_fqs
+};
+static DECLARE_WAIT_QUEUE_HEAD(waitqueue);
+static int retire_complete, sdqcr_complete;
+
+/* Helpers for initialising and "incrementing" a frame descriptor */
+static void fd_init(struct qm_fd *fd)
+{
+	qm_fd_addr_set64(fd, 0xabdeadbeefLLU);
+	qm_fd_set_contig_big(fd, 0x0000ffff);
+	fd->cmd = cpu_to_be32(0xfeedf00d);
+}
+
+static void fd_inc(struct qm_fd *fd)
+{
+	u64 t = qm_fd_addr_get64(fd);
+	int z = t >> 40;
+	unsigned int len, off;
+	enum qm_fd_format fmt;
+
+	t <<= 1;
+	if (z)
+		t |= 1;
+	qm_fd_addr_set64(fd, t);
+
+	fmt = qm_fd_get_format(fd);
+	off = qm_fd_get_offset(fd);
+	len = qm_fd_get_length(fd);
+	len--;
+	qm_fd_set_param(fd, fmt, off, len);
+
+	be32_add_cpu(&fd->cmd, 1);
+}
+
+/* The only part of the 'fd' we can't memcmp() is the ppid */
+static bool fd_neq(const struct qm_fd *a, const struct qm_fd *b)
+{
+	bool neq = qm_fd_addr_get64(a) != qm_fd_addr_get64(b);
+
+	neq |= qm_fd_get_format(a) != qm_fd_get_format(b);
+	neq |= a->cfg != b->cfg;
+	neq |= a->cmd != b->cmd;
+
+	return neq;
+}
+
+/* test */
+static int do_enqueues(struct qman_fq *fq)
+{
+	unsigned int loop;
+	int err = 0;
+
+	for (loop = 0; loop < NUM_ENQUEUES; loop++) {
+		if (qman_enqueue(fq, &fd)) {
+			pr_crit("qman_enqueue() failed\n");
+			err = -EIO;
+		}
+		fd_inc(&fd);
+	}
+
+	return err;
+}
+
+int qman_test_api(void)
+{
+	unsigned int flags, frmcnt;
+	int err;
+	struct qman_fq *fq = &fq_base;
+
+	pr_info("%s(): Starting\n", __func__);
+	fd_init(&fd);
+	fd_init(&fd_dq);
+
+	/* Initialise (parked) FQ */
+	err = qman_create_fq(0, FQ_FLAGS, fq);
+	if (err) {
+		pr_crit("qman_create_fq() failed\n");
+		goto failed;
+	}
+	err = qman_init_fq(fq, QMAN_INITFQ_FLAG_LOCAL, NULL);
+	if (err) {
+		pr_crit("qman_init_fq() failed\n");
+		goto failed;
+	}
+	/* Do enqueues + VDQCR, twice. (Parked FQ) */
+	err = do_enqueues(fq);
+	if (err)
+		goto failed;
+	pr_info("VDQCR (till-empty);\n");
+	frmcnt = QM_VDQCR_NUMFRAMES_TILLEMPTY;
+	err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt);
+	if (err) {
+		pr_crit("qman_volatile_dequeue() failed\n");
+		goto failed;
+	}
+	err = do_enqueues(fq);
+	if (err)
+		goto failed;
+	pr_info("VDQCR (%d of %d);\n", NUM_PARTIAL, NUM_ENQUEUES);
+	frmcnt = QM_VDQCR_NUMFRAMES_SET(NUM_PARTIAL);
+	err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt);
+	if (err) {
+		pr_crit("qman_volatile_dequeue() failed\n");
+		goto failed;
+	}
+	pr_info("VDQCR (%d of %d);\n", NUM_ENQUEUES - NUM_PARTIAL,
+		NUM_ENQUEUES);
+	frmcnt = QM_VDQCR_NUMFRAMES_SET(NUM_ENQUEUES - NUM_PARTIAL);
+	err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt);
+	if (err) {
+		pr_err("qman_volatile_dequeue() failed\n");
+		goto failed;
+	}
+
+	err = do_enqueues(fq);
+	if (err)
+		goto failed;
+	pr_info("scheduled dequeue (till-empty)\n");
+	err = qman_schedule_fq(fq);
+	if (err) {
+		pr_crit("qman_schedule_fq() failed\n");
+		goto failed;
+	}
+	wait_event(waitqueue, sdqcr_complete);
+
+	/* Retire and OOS the FQ */
+	err = qman_retire_fq(fq, &flags);
+	if (err < 0) {
+		pr_crit("qman_retire_fq() failed\n");
+		goto failed;
+	}
+	wait_event(waitqueue, retire_complete);
+	if (flags & QMAN_FQ_STATE_BLOCKOOS) {
+		err = -EIO;
+		pr_crit("leaking frames\n");
+		goto failed;
+	}
+	err = qman_oos_fq(fq);
+	if (err) {
+		pr_crit("qman_oos_fq() failed\n");
+		goto failed;
+	}
+	qman_destroy_fq(fq);
+	pr_info("%s(): Finished\n", __func__);
+	return 0;
+
+failed:
+	WARN_ON(1);
+	return err;
+}
+
+static enum qman_cb_dqrr_result cb_dqrr(struct qman_portal *p,
+					struct qman_fq *fq,
+					const struct qm_dqrr_entry *dq,
+					bool sched_napi)
+{
+	if (WARN_ON(fd_neq(&fd_dq, &dq->fd))) {
+		pr_err("BADNESS: dequeued frame doesn't match;\n");
+		return qman_cb_dqrr_consume;
+	}
+	fd_inc(&fd_dq);
+	if (!(dq->stat & QM_DQRR_STAT_UNSCHEDULED) && !fd_neq(&fd_dq, &fd)) {
+		sdqcr_complete = 1;
+		wake_up(&waitqueue);
+	}
+	return qman_cb_dqrr_consume;
+}
+
+static void cb_ern(struct qman_portal *p, struct qman_fq *fq,
+		   const union qm_mr_entry *msg)
+{
+	pr_crit("cb_ern() unimplemented");
+	WARN_ON(1);
+}
+
+static void cb_fqs(struct qman_portal *p, struct qman_fq *fq,
+		   const union qm_mr_entry *msg)
+{
+	u8 verb = (msg->verb & QM_MR_VERB_TYPE_MASK);
+
+	if ((verb != QM_MR_VERB_FQRN) && (verb != QM_MR_VERB_FQRNI)) {
+		pr_crit("unexpected FQS message");
+		WARN_ON(1);
+		return;
+	}
+	pr_info("Retirement message received\n");
+	retire_complete = 1;
+	wake_up(&waitqueue);
+}