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, 223 insertions, 0 deletions

diff --git a/drivers/misc/sgi-gru/grukdump.c b/drivers/misc/sgi-gru/grukdump.c
new file mode 100644
index 000000000..9869f4f2f
--- /dev/null
+++ b/drivers/misc/sgi-gru/grukdump.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * SN Platform GRU Driver
+ *
+ *            Dump GRU State
+ *
+ *  Copyright (c) 2008 Silicon Graphics, Inc.  All Rights Reserved.
+ */
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/spinlock.h>
+#include <linux/uaccess.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <asm/uv/uv_hub.h>
+
+#include <linux/nospec.h>
+
+#include "gru.h"
+#include "grutables.h"
+#include "gruhandles.h"
+#include "grulib.h"
+
+#define CCH_LOCK_ATTEMPTS	10
+
+static int gru_user_copy_handle(void __user **dp, void *s)
+{
+	if (copy_to_user(*dp, s, GRU_HANDLE_BYTES))
+		return -1;
+	*dp += GRU_HANDLE_BYTES;
+	return 0;
+}
+
+static int gru_dump_context_data(void *grubase,
+			struct gru_context_configuration_handle *cch,
+			void __user *ubuf, int ctxnum, int dsrcnt,
+			int flush_cbrs)
+{
+	void *cb, *cbe, *tfh, *gseg;
+	int i, scr;
+
+	gseg = grubase + ctxnum * GRU_GSEG_STRIDE;
+	cb = gseg + GRU_CB_BASE;
+	cbe = grubase + GRU_CBE_BASE;
+	tfh = grubase + GRU_TFH_BASE;
+
+	for_each_cbr_in_allocation_map(i, &cch->cbr_allocation_map, scr) {
+		if (flush_cbrs)
+			gru_flush_cache(cb);
+		if (gru_user_copy_handle(&ubuf, cb))
+			goto fail;
+		if (gru_user_copy_handle(&ubuf, tfh + i * GRU_HANDLE_STRIDE))
+			goto fail;
+		if (gru_user_copy_handle(&ubuf, cbe + i * GRU_HANDLE_STRIDE))
+			goto fail;
+		cb += GRU_HANDLE_STRIDE;
+	}
+	if (dsrcnt)
+		memcpy(ubuf, gseg + GRU_DS_BASE, dsrcnt * GRU_HANDLE_STRIDE);
+	return 0;
+
+fail:
+	return -EFAULT;
+}
+
+static int gru_dump_tfm(struct gru_state *gru,
+		void __user *ubuf, void __user *ubufend)
+{
+	struct gru_tlb_fault_map *tfm;
+	int i;
+
+	if (GRU_NUM_TFM * GRU_CACHE_LINE_BYTES > ubufend - ubuf)
+		return -EFBIG;
+
+	for (i = 0; i < GRU_NUM_TFM; i++) {
+		tfm = get_tfm(gru->gs_gru_base_vaddr, i);
+		if (gru_user_copy_handle(&ubuf, tfm))
+			goto fail;
+	}
+	return GRU_NUM_TFM * GRU_CACHE_LINE_BYTES;
+
+fail:
+	return -EFAULT;
+}
+
+static int gru_dump_tgh(struct gru_state *gru,
+		void __user *ubuf, void __user *ubufend)
+{
+	struct gru_tlb_global_handle *tgh;
+	int i;
+
+	if (GRU_NUM_TGH * GRU_CACHE_LINE_BYTES > ubufend - ubuf)
+		return -EFBIG;
+
+	for (i = 0; i < GRU_NUM_TGH; i++) {
+		tgh = get_tgh(gru->gs_gru_base_vaddr, i);
+		if (gru_user_copy_handle(&ubuf, tgh))
+			goto fail;
+	}
+	return GRU_NUM_TGH * GRU_CACHE_LINE_BYTES;
+
+fail:
+	return -EFAULT;
+}
+
+static int gru_dump_context(struct gru_state *gru, int ctxnum,
+		void __user *ubuf, void __user *ubufend, char data_opt,
+		char lock_cch, char flush_cbrs)
+{
+	struct gru_dump_context_header hdr;
+	struct gru_dump_context_header __user *uhdr = ubuf;
+	struct gru_context_configuration_handle *cch, *ubufcch;
+	struct gru_thread_state *gts;
+	int try, cch_locked, cbrcnt = 0, dsrcnt = 0, bytes = 0, ret = 0;
+	void *grubase;
+
+	memset(&hdr, 0, sizeof(hdr));
+	grubase = gru->gs_gru_base_vaddr;
+	cch = get_cch(grubase, ctxnum);
+	for (try = 0; try < CCH_LOCK_ATTEMPTS; try++) {
+		cch_locked =  trylock_cch_handle(cch);
+		if (cch_locked)
+			break;
+		msleep(1);
+	}
+
+	ubuf += sizeof(hdr);
+	ubufcch = ubuf;
+	if (gru_user_copy_handle(&ubuf, cch)) {
+		if (cch_locked)
+			unlock_cch_handle(cch);
+		return -EFAULT;
+	}
+	if (cch_locked)
+		ubufcch->delresp = 0;
+	bytes = sizeof(hdr) + GRU_CACHE_LINE_BYTES;
+
+	if (cch_locked || !lock_cch) {
+		gts = gru->gs_gts[ctxnum];
+		if (gts && gts->ts_vma) {
+			hdr.pid = gts->ts_tgid_owner;
+			hdr.vaddr = gts->ts_vma->vm_start;
+		}
+		if (cch->state != CCHSTATE_INACTIVE) {
+			cbrcnt = hweight64(cch->cbr_allocation_map) *
+						GRU_CBR_AU_SIZE;
+			dsrcnt = data_opt ? hweight32(cch->dsr_allocation_map) *
+						GRU_DSR_AU_CL : 0;
+		}
+		bytes += (3 * cbrcnt + dsrcnt) * GRU_CACHE_LINE_BYTES;
+		if (bytes > ubufend - ubuf)
+			ret = -EFBIG;
+		else
+			ret = gru_dump_context_data(grubase, cch, ubuf, ctxnum,
+							dsrcnt, flush_cbrs);
+	}
+	if (cch_locked)
+		unlock_cch_handle(cch);
+	if (ret)
+		return ret;
+
+	hdr.magic = GRU_DUMP_MAGIC;
+	hdr.gid = gru->gs_gid;
+	hdr.ctxnum = ctxnum;
+	hdr.cbrcnt = cbrcnt;
+	hdr.dsrcnt = dsrcnt;
+	hdr.cch_locked = cch_locked;
+	if (copy_to_user(uhdr, &hdr, sizeof(hdr)))
+		return -EFAULT;
+
+	return bytes;
+}
+
+int gru_dump_chiplet_request(unsigned long arg)
+{
+	struct gru_state *gru;
+	struct gru_dump_chiplet_state_req req;
+	void __user *ubuf;
+	void __user *ubufend;
+	int ctxnum, ret, cnt = 0;
+
+	if (copy_from_user(&req, (void __user *)arg, sizeof(req)))
+		return -EFAULT;
+
+	/* Currently, only dump by gid is implemented */
+	if (req.gid >= gru_max_gids)
+		return -EINVAL;
+	req.gid = array_index_nospec(req.gid, gru_max_gids);
+
+	gru = GID_TO_GRU(req.gid);
+	ubuf = req.buf;
+	ubufend = req.buf + req.buflen;
+
+	ret = gru_dump_tfm(gru, ubuf, ubufend);
+	if (ret < 0)
+		goto fail;
+	ubuf += ret;
+
+	ret = gru_dump_tgh(gru, ubuf, ubufend);
+	if (ret < 0)
+		goto fail;
+	ubuf += ret;
+
+	for (ctxnum = 0; ctxnum < GRU_NUM_CCH; ctxnum++) {
+		if (req.ctxnum == ctxnum || req.ctxnum < 0) {
+			ret = gru_dump_context(gru, ctxnum, ubuf, ubufend,
+						req.data_opt, req.lock_cch,
+						req.flush_cbrs);
+			if (ret < 0)
+				goto fail;
+			ubuf += ret;
+			cnt++;
+		}
+	}
+
+	if (copy_to_user((void __user *)arg, &req, sizeof(req)))
+		return -EFAULT;
+	return cnt;
+
+fail:
+	return ret;
+}