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, 353 insertions, 0 deletions

diff --git a/drivers/net/ethernet/cisco/enic/enic_pp.c b/drivers/net/ethernet/cisco/enic/enic_pp.c
new file mode 100644
index 000000000..4720a9527
--- /dev/null
+++ b/drivers/net/ethernet/cisco/enic/enic_pp.c
@@ -0,0 +1,353 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright 2011 Cisco Systems, Inc.  All rights reserved.
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
+#include <net/ip.h>
+
+#include "vnic_vic.h"
+#include "enic_res.h"
+#include "enic.h"
+#include "enic_dev.h"
+#include "enic_pp.h"
+
+/*
+ * Checks validity of vf index that came in
+ * port profile request
+ */
+int enic_is_valid_pp_vf(struct enic *enic, int vf, int *err)
+{
+	if (vf != PORT_SELF_VF) {
+#ifdef CONFIG_PCI_IOV
+		if (enic_sriov_enabled(enic)) {
+			if (vf < 0 || vf >= enic->num_vfs) {
+				*err = -EINVAL;
+				goto err_out;
+			}
+		} else {
+			*err = -EOPNOTSUPP;
+			goto err_out;
+		}
+#else
+		*err = -EOPNOTSUPP;
+		goto err_out;
+#endif
+	}
+
+	if (vf == PORT_SELF_VF && !enic_is_dynamic(enic)) {
+		*err = -EOPNOTSUPP;
+		goto err_out;
+	}
+
+	*err = 0;
+	return 1;
+
+err_out:
+	return 0;
+}
+
+static int enic_set_port_profile(struct enic *enic, int vf)
+{
+	struct net_device *netdev = enic->netdev;
+	struct enic_port_profile *pp;
+	struct vic_provinfo *vp;
+	const u8 oui[3] = VIC_PROVINFO_CISCO_OUI;
+	const __be16 os_type = htons(VIC_GENERIC_PROV_OS_TYPE_LINUX);
+	const u8 *client_mac;
+	char uuid_str[38];
+	char client_mac_str[18];
+	int err;
+
+	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
+	if (err)
+		return err;
+
+	if (!(pp->set & ENIC_SET_NAME) || !strlen(pp->name))
+		return -EINVAL;
+
+	vp = vic_provinfo_alloc(GFP_KERNEL, oui,
+		VIC_PROVINFO_GENERIC_TYPE);
+	if (!vp)
+		return -ENOMEM;
+
+	VIC_PROVINFO_ADD_TLV(vp,
+		VIC_GENERIC_PROV_TLV_PORT_PROFILE_NAME_STR,
+		strlen(pp->name) + 1, pp->name);
+
+	if (!is_zero_ether_addr(pp->mac_addr)) {
+		client_mac = pp->mac_addr;
+	} else if (vf == PORT_SELF_VF) {
+		client_mac = netdev->dev_addr;
+	} else {
+		netdev_err(netdev, "Cannot find pp mac address "
+			"for VF %d\n", vf);
+		err = -EINVAL;
+		goto add_tlv_failure;
+	}
+
+	VIC_PROVINFO_ADD_TLV(vp,
+		VIC_GENERIC_PROV_TLV_CLIENT_MAC_ADDR,
+		ETH_ALEN, client_mac);
+
+	snprintf(client_mac_str, sizeof(client_mac_str), "%pM", client_mac);
+	VIC_PROVINFO_ADD_TLV(vp,
+		VIC_GENERIC_PROV_TLV_CLUSTER_PORT_UUID_STR,
+		sizeof(client_mac_str), client_mac_str);
+
+	if (pp->set & ENIC_SET_INSTANCE) {
+		sprintf(uuid_str, "%pUB", pp->instance_uuid);
+		VIC_PROVINFO_ADD_TLV(vp,
+			VIC_GENERIC_PROV_TLV_CLIENT_UUID_STR,
+			sizeof(uuid_str), uuid_str);
+	}
+
+	if (pp->set & ENIC_SET_HOST) {
+		sprintf(uuid_str, "%pUB", pp->host_uuid);
+		VIC_PROVINFO_ADD_TLV(vp,
+			VIC_GENERIC_PROV_TLV_HOST_UUID_STR,
+			sizeof(uuid_str), uuid_str);
+	}
+
+	VIC_PROVINFO_ADD_TLV(vp,
+		VIC_GENERIC_PROV_TLV_OS_TYPE,
+		sizeof(os_type), &os_type);
+
+	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_init_prov2, (u8 *)vp,
+		vic_provinfo_size(vp));
+	err = enic_dev_status_to_errno(err);
+
+add_tlv_failure:
+	vic_provinfo_free(vp);
+
+	return err;
+}
+
+static int enic_unset_port_profile(struct enic *enic, int vf)
+{
+	int err;
+
+	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_deinit);
+	if (err)
+		return enic_dev_status_to_errno(err);
+
+	if (vf == PORT_SELF_VF)
+		enic_reset_addr_lists(enic);
+
+	return 0;
+}
+
+static int enic_are_pp_different(struct enic_port_profile *pp1,
+		struct enic_port_profile *pp2)
+{
+	return strcmp(pp1->name, pp2->name) | !!memcmp(pp1->instance_uuid,
+		pp2->instance_uuid, PORT_UUID_MAX) |
+		!!memcmp(pp1->host_uuid, pp2->host_uuid, PORT_UUID_MAX) |
+		!ether_addr_equal(pp1->mac_addr, pp2->mac_addr);
+}
+
+static int enic_pp_preassociate(struct enic *enic, int vf,
+	struct enic_port_profile *prev_pp, int *restore_pp);
+static int enic_pp_disassociate(struct enic *enic, int vf,
+	struct enic_port_profile *prev_pp, int *restore_pp);
+static int enic_pp_preassociate_rr(struct enic *enic, int vf,
+	struct enic_port_profile *prev_pp, int *restore_pp);
+static int enic_pp_associate(struct enic *enic, int vf,
+	struct enic_port_profile *prev_pp, int *restore_pp);
+
+static int (*enic_pp_handlers[])(struct enic *enic, int vf,
+		struct enic_port_profile *prev_state,
+		int *restore_pp) = {
+	[PORT_REQUEST_PREASSOCIATE]	= enic_pp_preassociate,
+	[PORT_REQUEST_PREASSOCIATE_RR]	= enic_pp_preassociate_rr,
+	[PORT_REQUEST_ASSOCIATE]	= enic_pp_associate,
+	[PORT_REQUEST_DISASSOCIATE]	= enic_pp_disassociate,
+};
+
+static const int enic_pp_handlers_count =
+			ARRAY_SIZE(enic_pp_handlers);
+
+static int enic_pp_preassociate(struct enic *enic, int vf,
+	struct enic_port_profile *prev_pp, int *restore_pp)
+{
+	return -EOPNOTSUPP;
+}
+
+static int enic_pp_disassociate(struct enic *enic, int vf,
+	struct enic_port_profile *prev_pp, int *restore_pp)
+{
+	struct net_device *netdev = enic->netdev;
+	struct enic_port_profile *pp;
+	int err;
+
+	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
+	if (err)
+		return err;
+
+	/* Deregister mac addresses */
+	if (!is_zero_ether_addr(pp->mac_addr))
+		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_del_addr,
+			pp->mac_addr);
+	else if (vf == PORT_SELF_VF && !is_zero_ether_addr(netdev->dev_addr))
+		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_del_addr,
+			netdev->dev_addr);
+
+	return enic_unset_port_profile(enic, vf);
+}
+
+static int enic_pp_preassociate_rr(struct enic *enic, int vf,
+	struct enic_port_profile *prev_pp, int *restore_pp)
+{
+	struct enic_port_profile *pp;
+	int err;
+	int active = 0;
+
+	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
+	if (err)
+		return err;
+
+	if (pp->request != PORT_REQUEST_ASSOCIATE) {
+		/* If pre-associate is not part of an associate.
+		We always disassociate first */
+		err = enic_pp_handlers[PORT_REQUEST_DISASSOCIATE](enic, vf,
+			prev_pp, restore_pp);
+		if (err)
+			return err;
+
+		*restore_pp = 0;
+	}
+
+	*restore_pp = 0;
+
+	err = enic_set_port_profile(enic, vf);
+	if (err)
+		return err;
+
+	/* If pre-associate is not part of an associate. */
+	if (pp->request != PORT_REQUEST_ASSOCIATE) {
+		/* Enable device as standby */
+		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_enable2,
+			active);
+		err = enic_dev_status_to_errno(err);
+	}
+
+	return err;
+}
+
+static int enic_pp_associate(struct enic *enic, int vf,
+	struct enic_port_profile *prev_pp, int *restore_pp)
+{
+	struct net_device *netdev = enic->netdev;
+	struct enic_port_profile *pp;
+	int err;
+	int active = 1;
+
+	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
+	if (err)
+		return err;
+
+	/* Check if a pre-associate was called before */
+	if (prev_pp->request != PORT_REQUEST_PREASSOCIATE_RR ||
+		(prev_pp->request == PORT_REQUEST_PREASSOCIATE_RR &&
+			enic_are_pp_different(prev_pp, pp))) {
+		err = enic_pp_handlers[PORT_REQUEST_DISASSOCIATE](
+			enic, vf, prev_pp, restore_pp);
+		if (err)
+			return err;
+
+		*restore_pp = 0;
+	}
+
+	err = enic_pp_handlers[PORT_REQUEST_PREASSOCIATE_RR](
+			enic, vf, prev_pp, restore_pp);
+	if (err)
+		return err;
+
+	*restore_pp = 0;
+
+	/* Enable device as active */
+	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_enable2, active);
+	err = enic_dev_status_to_errno(err);
+	if (err)
+		return err;
+
+	/* Register mac address */
+	if (!is_zero_ether_addr(pp->mac_addr))
+		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_add_addr,
+			pp->mac_addr);
+	else if (vf == PORT_SELF_VF && !is_zero_ether_addr(netdev->dev_addr))
+		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_add_addr,
+			netdev->dev_addr);
+
+	return 0;
+}
+
+int enic_process_set_pp_request(struct enic *enic, int vf,
+	struct enic_port_profile *prev_pp, int *restore_pp)
+{
+	struct enic_port_profile *pp;
+	int err;
+
+	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
+	if (err)
+		return err;
+
+	if (pp->request >= enic_pp_handlers_count
+		|| !enic_pp_handlers[pp->request])
+		return -EOPNOTSUPP;
+
+	return enic_pp_handlers[pp->request](enic, vf, prev_pp, restore_pp);
+}
+
+int enic_process_get_pp_request(struct enic *enic, int vf,
+	int request, u16 *response)
+{
+	int err, status = ERR_SUCCESS;
+
+	switch (request) {
+
+	case PORT_REQUEST_PREASSOCIATE_RR:
+	case PORT_REQUEST_ASSOCIATE:
+		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic,
+			vnic_dev_enable2_done, &status);
+		break;
+
+	case PORT_REQUEST_DISASSOCIATE:
+		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic,
+			vnic_dev_deinit_done, &status);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	if (err)
+		status = err;
+
+	switch (status) {
+	case ERR_SUCCESS:
+		*response = PORT_PROFILE_RESPONSE_SUCCESS;
+		break;
+	case ERR_EINVAL:
+		*response = PORT_PROFILE_RESPONSE_INVALID;
+		break;
+	case ERR_EBADSTATE:
+		*response = PORT_PROFILE_RESPONSE_BADSTATE;
+		break;
+	case ERR_ENOMEM:
+		*response = PORT_PROFILE_RESPONSE_INSUFFICIENT_RESOURCES;
+		break;
+	case ERR_EINPROGRESS:
+		*response = PORT_PROFILE_RESPONSE_INPROGRESS;
+		break;
+	default:
+		*response = PORT_PROFILE_RESPONSE_ERROR;
+		break;
+	}
+
+	return 0;
+}