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, 263 insertions, 0 deletions

diff --git a/drivers/pcmcia/sa11xx_base.c b/drivers/pcmcia/sa11xx_base.c
new file mode 100644
index 000000000..48140ac73
--- /dev/null
+++ b/drivers/pcmcia/sa11xx_base.c
@@ -0,0 +1,263 @@
+/*======================================================================
+
+    Device driver for the PCMCIA control functionality of StrongARM
+    SA-1100 microprocessors.
+
+    The contents of this file are subject to the Mozilla Public
+    License Version 1.1 (the "License"); you may not use this file
+    except in compliance with the License. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+    Software distributed under the License is distributed on an "AS
+    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+    implied. See the License for the specific language governing
+    rights and limitations under the License.
+
+    The initial developer of the original code is John G. Dorsey
+    <john+@cs.cmu.edu>.  Portions created by John G. Dorsey are
+    Copyright (C) 1999 John G. Dorsey.  All Rights Reserved.
+
+    Alternatively, the contents of this file may be used under the
+    terms of the GNU Public License version 2 (the "GPL"), in which
+    case the provisions of the GPL are applicable instead of the
+    above.  If you wish to allow the use of your version of this file
+    only under the terms of the GPL and not to allow others to use
+    your version of this file under the MPL, indicate your decision
+    by deleting the provisions above and replace them with the notice
+    and other provisions required by the GPL.  If you do not delete
+    the provisions above, a recipient may use your version of this
+    file under either the MPL or the GPL.
+
+======================================================================*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/cpufreq.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+
+#include "soc_common.h"
+#include "sa11xx_base.h"
+
+
+/*
+ * sa1100_pcmcia_default_mecr_timing
+ * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ *
+ * Calculate MECR clock wait states for given CPU clock
+ * speed and command wait state. This function can be over-
+ * written by a board specific version.
+ *
+ * The default is to simply calculate the BS values as specified in
+ * the INTEL SA1100 development manual
+ * "Expansion Memory (PCMCIA) Configuration Register (MECR)"
+ * that's section 10.2.5 in _my_ version of the manual ;)
+ */
+static unsigned int
+sa1100_pcmcia_default_mecr_timing(struct soc_pcmcia_socket *skt,
+				  unsigned int cpu_speed,
+				  unsigned int cmd_time)
+{
+	return sa1100_pcmcia_mecr_bs(cmd_time, cpu_speed);
+}
+
+/* sa1100_pcmcia_set_mecr()
+ * ^^^^^^^^^^^^^^^^^^^^^^^^
+ *
+ * set MECR value for socket <sock> based on this sockets
+ * io, mem and attribute space access speed.
+ * Call board specific BS value calculation to allow boards
+ * to tweak the BS values.
+ */
+static int
+sa1100_pcmcia_set_mecr(struct soc_pcmcia_socket *skt, unsigned int cpu_clock)
+{
+	struct soc_pcmcia_timing timing;
+	u32 mecr, old_mecr;
+	unsigned long flags;
+	unsigned int bs_io, bs_mem, bs_attr;
+
+	soc_common_pcmcia_get_timing(skt, &timing);
+
+	bs_io = skt->ops->get_timing(skt, cpu_clock, timing.io);
+	bs_mem = skt->ops->get_timing(skt, cpu_clock, timing.mem);
+	bs_attr = skt->ops->get_timing(skt, cpu_clock, timing.attr);
+
+	local_irq_save(flags);
+
+	old_mecr = mecr = MECR;
+	MECR_FAST_SET(mecr, skt->nr, 0);
+	MECR_BSIO_SET(mecr, skt->nr, bs_io);
+	MECR_BSA_SET(mecr, skt->nr, bs_attr);
+	MECR_BSM_SET(mecr, skt->nr, bs_mem);
+	if (old_mecr != mecr)
+		MECR = mecr;
+
+	local_irq_restore(flags);
+
+	debug(skt, 2, "FAST %X  BSM %X  BSA %X  BSIO %X\n",
+	      MECR_FAST_GET(mecr, skt->nr),
+	      MECR_BSM_GET(mecr, skt->nr), MECR_BSA_GET(mecr, skt->nr),
+	      MECR_BSIO_GET(mecr, skt->nr));
+
+	return 0;
+}
+
+#ifdef CONFIG_CPU_FREQ
+static int
+sa1100_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
+			       unsigned long val,
+			       struct cpufreq_freqs *freqs)
+{
+	switch (val) {
+	case CPUFREQ_PRECHANGE:
+		if (freqs->new > freqs->old)
+			sa1100_pcmcia_set_mecr(skt, freqs->new);
+		break;
+
+	case CPUFREQ_POSTCHANGE:
+		if (freqs->new < freqs->old)
+			sa1100_pcmcia_set_mecr(skt, freqs->new);
+		break;
+	}
+
+	return 0;
+}
+
+#endif
+
+static int
+sa1100_pcmcia_set_timing(struct soc_pcmcia_socket *skt)
+{
+	unsigned long clk = clk_get_rate(skt->clk);
+
+	return sa1100_pcmcia_set_mecr(skt, clk / 1000);
+}
+
+static int
+sa1100_pcmcia_show_timing(struct soc_pcmcia_socket *skt, char *buf)
+{
+	struct soc_pcmcia_timing timing;
+	unsigned int clock = clk_get_rate(skt->clk) / 1000;
+	unsigned long mecr = MECR;
+	char *p = buf;
+
+	soc_common_pcmcia_get_timing(skt, &timing);
+
+	p+=sprintf(p, "I/O      : %uns (%uns)\n", timing.io,
+		   sa1100_pcmcia_cmd_time(clock, MECR_BSIO_GET(mecr, skt->nr)));
+
+	p+=sprintf(p, "attribute: %uns (%uns)\n", timing.attr,
+		   sa1100_pcmcia_cmd_time(clock, MECR_BSA_GET(mecr, skt->nr)));
+
+	p+=sprintf(p, "common   : %uns (%uns)\n", timing.mem,
+		   sa1100_pcmcia_cmd_time(clock, MECR_BSM_GET(mecr, skt->nr)));
+
+	return p - buf;
+}
+
+static const char *skt_names[] = {
+	"PCMCIA socket 0",
+	"PCMCIA socket 1",
+};
+
+#define SKT_DEV_INFO_SIZE(n) \
+	(sizeof(struct skt_dev_info) + (n)*sizeof(struct soc_pcmcia_socket))
+
+int sa11xx_drv_pcmcia_add_one(struct soc_pcmcia_socket *skt)
+{
+	skt->res_skt.start = _PCMCIA(skt->nr);
+	skt->res_skt.end = _PCMCIA(skt->nr) + PCMCIASp - 1;
+	skt->res_skt.name = skt_names[skt->nr];
+	skt->res_skt.flags = IORESOURCE_MEM;
+
+	skt->res_io.start = _PCMCIAIO(skt->nr);
+	skt->res_io.end = _PCMCIAIO(skt->nr) + PCMCIAIOSp - 1;
+	skt->res_io.name = "io";
+	skt->res_io.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+
+	skt->res_mem.start = _PCMCIAMem(skt->nr);
+	skt->res_mem.end = _PCMCIAMem(skt->nr) + PCMCIAMemSp - 1;
+	skt->res_mem.name = "memory";
+	skt->res_mem.flags = IORESOURCE_MEM;
+
+	skt->res_attr.start = _PCMCIAAttr(skt->nr);
+	skt->res_attr.end = _PCMCIAAttr(skt->nr) + PCMCIAAttrSp - 1;
+	skt->res_attr.name = "attribute";
+	skt->res_attr.flags = IORESOURCE_MEM;
+
+	return soc_pcmcia_add_one(skt);
+}
+EXPORT_SYMBOL(sa11xx_drv_pcmcia_add_one);
+
+void sa11xx_drv_pcmcia_ops(struct pcmcia_low_level *ops)
+{
+	/*
+	 * set default MECR calculation if the board specific
+	 * code did not specify one...
+	 */
+	if (!ops->get_timing)
+		ops->get_timing = sa1100_pcmcia_default_mecr_timing;
+
+	/* Provide our SA11x0 specific timing routines. */
+	ops->set_timing  = sa1100_pcmcia_set_timing;
+	ops->show_timing = sa1100_pcmcia_show_timing;
+#ifdef CONFIG_CPU_FREQ
+	ops->frequency_change = sa1100_pcmcia_frequency_change;
+#endif
+}
+EXPORT_SYMBOL(sa11xx_drv_pcmcia_ops);
+
+int sa11xx_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops,
+			    int first, int nr)
+{
+	struct skt_dev_info *sinfo;
+	struct soc_pcmcia_socket *skt;
+	int i, ret = 0;
+	struct clk *clk;
+
+	clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	sa11xx_drv_pcmcia_ops(ops);
+
+	sinfo = devm_kzalloc(dev, SKT_DEV_INFO_SIZE(nr), GFP_KERNEL);
+	if (!sinfo)
+		return -ENOMEM;
+
+	sinfo->nskt = nr;
+
+	/* Initialize processor specific parameters */
+	for (i = 0; i < nr; i++) {
+		skt = &sinfo->skt[i];
+
+		skt->nr = first + i;
+		skt->clk = clk;
+		soc_pcmcia_init_one(skt, ops, dev);
+
+		ret = sa11xx_drv_pcmcia_add_one(skt);
+		if (ret)
+			break;
+	}
+
+	if (ret) {
+		while (--i >= 0)
+			soc_pcmcia_remove_one(&sinfo->skt[i]);
+	} else {
+		dev_set_drvdata(dev, sinfo);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(sa11xx_drv_pcmcia_probe);
+
+MODULE_AUTHOR("John Dorsey <john+@cs.cmu.edu>");
+MODULE_DESCRIPTION("Linux PCMCIA Card Services: SA-11xx core socket driver");
+MODULE_LICENSE("Dual MPL/GPL");