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, 241 insertions, 0 deletions

diff --git a/net/ethtool/eeprom.c b/net/ethtool/eeprom.c
new file mode 100644
index 000000000..49c0a2a77
--- /dev/null
+++ b/net/ethtool/eeprom.c
@@ -0,0 +1,241 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/ethtool.h>
+#include <linux/sfp.h>
+#include "netlink.h"
+#include "common.h"
+
+struct eeprom_req_info {
+	struct ethnl_req_info	base;
+	u32			offset;
+	u32			length;
+	u8			page;
+	u8			bank;
+	u8			i2c_address;
+};
+
+struct eeprom_reply_data {
+	struct ethnl_reply_data base;
+	u32			length;
+	u8			*data;
+};
+
+#define MODULE_EEPROM_REQINFO(__req_base) \
+	container_of(__req_base, struct eeprom_req_info, base)
+
+#define MODULE_EEPROM_REPDATA(__reply_base) \
+	container_of(__reply_base, struct eeprom_reply_data, base)
+
+static int fallback_set_params(struct eeprom_req_info *request,
+			       struct ethtool_modinfo *modinfo,
+			       struct ethtool_eeprom *eeprom)
+{
+	u32 offset = request->offset;
+	u32 length = request->length;
+
+	if (request->page)
+		offset = request->page * ETH_MODULE_EEPROM_PAGE_LEN + offset;
+
+	if (modinfo->type == ETH_MODULE_SFF_8472 &&
+	    request->i2c_address == 0x51)
+		offset += ETH_MODULE_EEPROM_PAGE_LEN * 2;
+
+	if (offset >= modinfo->eeprom_len)
+		return -EINVAL;
+
+	eeprom->cmd = ETHTOOL_GMODULEEEPROM;
+	eeprom->len = length;
+	eeprom->offset = offset;
+
+	return 0;
+}
+
+static int eeprom_fallback(struct eeprom_req_info *request,
+			   struct eeprom_reply_data *reply,
+			   struct genl_info *info)
+{
+	struct net_device *dev = reply->base.dev;
+	struct ethtool_modinfo modinfo = {0};
+	struct ethtool_eeprom eeprom = {0};
+	u8 *data;
+	int err;
+
+	modinfo.cmd = ETHTOOL_GMODULEINFO;
+	err = ethtool_get_module_info_call(dev, &modinfo);
+	if (err < 0)
+		return err;
+
+	err = fallback_set_params(request, &modinfo, &eeprom);
+	if (err < 0)
+		return err;
+
+	data = kmalloc(eeprom.len, GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+	err = ethtool_get_module_eeprom_call(dev, &eeprom, data);
+	if (err < 0)
+		goto err_out;
+
+	reply->data = data;
+	reply->length = eeprom.len;
+
+	return 0;
+
+err_out:
+	kfree(data);
+	return err;
+}
+
+static int get_module_eeprom_by_page(struct net_device *dev,
+				     struct ethtool_module_eeprom *page_data,
+				     struct netlink_ext_ack *extack)
+{
+	const struct ethtool_ops *ops = dev->ethtool_ops;
+
+	if (dev->sfp_bus)
+		return sfp_get_module_eeprom_by_page(dev->sfp_bus, page_data, extack);
+
+	if (ops->get_module_eeprom_by_page)
+		return ops->get_module_eeprom_by_page(dev, page_data, extack);
+
+	return -EOPNOTSUPP;
+}
+
+static int eeprom_prepare_data(const struct ethnl_req_info *req_base,
+			       struct ethnl_reply_data *reply_base,
+			       struct genl_info *info)
+{
+	struct eeprom_reply_data *reply = MODULE_EEPROM_REPDATA(reply_base);
+	struct eeprom_req_info *request = MODULE_EEPROM_REQINFO(req_base);
+	struct ethtool_module_eeprom page_data = {0};
+	struct net_device *dev = reply_base->dev;
+	int ret;
+
+	page_data.offset = request->offset;
+	page_data.length = request->length;
+	page_data.i2c_address = request->i2c_address;
+	page_data.page = request->page;
+	page_data.bank = request->bank;
+	page_data.data = kmalloc(page_data.length, GFP_KERNEL);
+	if (!page_data.data)
+		return -ENOMEM;
+
+	ret = ethnl_ops_begin(dev);
+	if (ret)
+		goto err_free;
+
+	ret = get_module_eeprom_by_page(dev, &page_data, info ? info->extack : NULL);
+	if (ret < 0)
+		goto err_ops;
+
+	reply->length = ret;
+	reply->data = page_data.data;
+
+	ethnl_ops_complete(dev);
+	return 0;
+
+err_ops:
+	ethnl_ops_complete(dev);
+err_free:
+	kfree(page_data.data);
+
+	if (ret == -EOPNOTSUPP)
+		return eeprom_fallback(request, reply, info);
+	return ret;
+}
+
+static int eeprom_parse_request(struct ethnl_req_info *req_info, struct nlattr **tb,
+				struct netlink_ext_ack *extack)
+{
+	struct eeprom_req_info *request = MODULE_EEPROM_REQINFO(req_info);
+
+	if (!tb[ETHTOOL_A_MODULE_EEPROM_OFFSET] ||
+	    !tb[ETHTOOL_A_MODULE_EEPROM_LENGTH] ||
+	    !tb[ETHTOOL_A_MODULE_EEPROM_PAGE] ||
+	    !tb[ETHTOOL_A_MODULE_EEPROM_I2C_ADDRESS])
+		return -EINVAL;
+
+	request->i2c_address = nla_get_u8(tb[ETHTOOL_A_MODULE_EEPROM_I2C_ADDRESS]);
+	request->offset = nla_get_u32(tb[ETHTOOL_A_MODULE_EEPROM_OFFSET]);
+	request->length = nla_get_u32(tb[ETHTOOL_A_MODULE_EEPROM_LENGTH]);
+
+	/* The following set of conditions limit the API to only dump 1/2
+	 * EEPROM page without crossing low page boundary located at offset 128.
+	 * This means user may only request dumps of length limited to 128 from
+	 * either low 128 bytes or high 128 bytes.
+	 * For pages higher than 0 only high 128 bytes are accessible.
+	 */
+	request->page = nla_get_u8(tb[ETHTOOL_A_MODULE_EEPROM_PAGE]);
+	if (request->page && request->offset < ETH_MODULE_EEPROM_PAGE_LEN) {
+		NL_SET_ERR_MSG_ATTR(extack, tb[ETHTOOL_A_MODULE_EEPROM_PAGE],
+				    "reading from lower half page is allowed for page 0 only");
+		return -EINVAL;
+	}
+
+	if (request->offset < ETH_MODULE_EEPROM_PAGE_LEN &&
+	    request->offset + request->length > ETH_MODULE_EEPROM_PAGE_LEN) {
+		NL_SET_ERR_MSG_ATTR(extack, tb[ETHTOOL_A_MODULE_EEPROM_LENGTH],
+				    "reading cross half page boundary is illegal");
+		return -EINVAL;
+	} else if (request->offset + request->length > ETH_MODULE_EEPROM_PAGE_LEN * 2) {
+		NL_SET_ERR_MSG_ATTR(extack, tb[ETHTOOL_A_MODULE_EEPROM_LENGTH],
+				    "reading cross page boundary is illegal");
+		return -EINVAL;
+	}
+
+	if (tb[ETHTOOL_A_MODULE_EEPROM_BANK])
+		request->bank = nla_get_u8(tb[ETHTOOL_A_MODULE_EEPROM_BANK]);
+
+	return 0;
+}
+
+static int eeprom_reply_size(const struct ethnl_req_info *req_base,
+			     const struct ethnl_reply_data *reply_base)
+{
+	const struct eeprom_req_info *request = MODULE_EEPROM_REQINFO(req_base);
+
+	return nla_total_size(sizeof(u8) * request->length); /* _EEPROM_DATA */
+}
+
+static int eeprom_fill_reply(struct sk_buff *skb,
+			     const struct ethnl_req_info *req_base,
+			     const struct ethnl_reply_data *reply_base)
+{
+	struct eeprom_reply_data *reply = MODULE_EEPROM_REPDATA(reply_base);
+
+	return nla_put(skb, ETHTOOL_A_MODULE_EEPROM_DATA, reply->length, reply->data);
+}
+
+static void eeprom_cleanup_data(struct ethnl_reply_data *reply_base)
+{
+	struct eeprom_reply_data *reply = MODULE_EEPROM_REPDATA(reply_base);
+
+	kfree(reply->data);
+}
+
+const struct ethnl_request_ops ethnl_module_eeprom_request_ops = {
+	.request_cmd		= ETHTOOL_MSG_MODULE_EEPROM_GET,
+	.reply_cmd		= ETHTOOL_MSG_MODULE_EEPROM_GET_REPLY,
+	.hdr_attr		= ETHTOOL_A_MODULE_EEPROM_HEADER,
+	.req_info_size		= sizeof(struct eeprom_req_info),
+	.reply_data_size	= sizeof(struct eeprom_reply_data),
+
+	.parse_request		= eeprom_parse_request,
+	.prepare_data		= eeprom_prepare_data,
+	.reply_size		= eeprom_reply_size,
+	.fill_reply		= eeprom_fill_reply,
+	.cleanup_data		= eeprom_cleanup_data,
+};
+
+const struct nla_policy ethnl_module_eeprom_get_policy[] = {
+	[ETHTOOL_A_MODULE_EEPROM_HEADER]	= NLA_POLICY_NESTED(ethnl_header_policy),
+	[ETHTOOL_A_MODULE_EEPROM_OFFSET]	=
+		NLA_POLICY_MAX(NLA_U32, ETH_MODULE_EEPROM_PAGE_LEN * 2 - 1),
+	[ETHTOOL_A_MODULE_EEPROM_LENGTH]	=
+		NLA_POLICY_RANGE(NLA_U32, 1, ETH_MODULE_EEPROM_PAGE_LEN),
+	[ETHTOOL_A_MODULE_EEPROM_PAGE]		= { .type = NLA_U8 },
+	[ETHTOOL_A_MODULE_EEPROM_BANK]		= { .type = NLA_U8 },
+	[ETHTOOL_A_MODULE_EEPROM_I2C_ADDRESS]	=
+		NLA_POLICY_RANGE(NLA_U8, 0, ETH_MODULE_MAX_I2C_ADDRESS),
+};
+