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, 301 insertions, 0 deletions

diff --git a/drivers/net/ethernet/cisco/enic/enic.h b/drivers/net/ethernet/cisco/enic/enic.h
new file mode 100644
index 000000000..300ad05ee
--- /dev/null
+++ b/drivers/net/ethernet/cisco/enic/enic.h
@@ -0,0 +1,301 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
+ */
+
+#ifndef _ENIC_H_
+#define _ENIC_H_
+
+#include "vnic_enet.h"
+#include "vnic_dev.h"
+#include "vnic_wq.h"
+#include "vnic_rq.h"
+#include "vnic_cq.h"
+#include "vnic_intr.h"
+#include "vnic_stats.h"
+#include "vnic_nic.h"
+#include "vnic_rss.h"
+#include <linux/irq.h>
+
+#define DRV_NAME		"enic"
+#define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Driver"
+
+#define ENIC_BARS_MAX		6
+
+#define ENIC_WQ_MAX		8
+#define ENIC_RQ_MAX		8
+#define ENIC_CQ_MAX		(ENIC_WQ_MAX + ENIC_RQ_MAX)
+#define ENIC_INTR_MAX		(ENIC_CQ_MAX + 2)
+
+#define ENIC_WQ_NAPI_BUDGET	256
+
+#define ENIC_AIC_LARGE_PKT_DIFF	3
+
+struct enic_msix_entry {
+	int requested;
+	char devname[IFNAMSIZ + 8];
+	irqreturn_t (*isr)(int, void *);
+	void *devid;
+	cpumask_var_t affinity_mask;
+};
+
+/* Store only the lower range.  Higher range is given by fw. */
+struct enic_intr_mod_range {
+	u32 small_pkt_range_start;
+	u32 large_pkt_range_start;
+};
+
+struct enic_intr_mod_table {
+	u32 rx_rate;
+	u32 range_percent;
+};
+
+#define ENIC_MAX_LINK_SPEEDS		3
+#define ENIC_LINK_SPEED_10G		10000
+#define ENIC_LINK_SPEED_4G		4000
+#define ENIC_LINK_40G_INDEX		2
+#define ENIC_LINK_10G_INDEX		1
+#define ENIC_LINK_4G_INDEX		0
+#define ENIC_RX_COALESCE_RANGE_END	125
+#define ENIC_AIC_TS_BREAK		100
+
+struct enic_rx_coal {
+	u32 small_pkt_range_start;
+	u32 large_pkt_range_start;
+	u32 range_end;
+	u32 use_adaptive_rx_coalesce;
+};
+
+/* priv_flags */
+#define ENIC_SRIOV_ENABLED		(1 << 0)
+
+/* enic port profile set flags */
+#define ENIC_PORT_REQUEST_APPLIED	(1 << 0)
+#define ENIC_SET_REQUEST		(1 << 1)
+#define ENIC_SET_NAME			(1 << 2)
+#define ENIC_SET_INSTANCE		(1 << 3)
+#define ENIC_SET_HOST			(1 << 4)
+
+struct enic_port_profile {
+	u32 set;
+	u8 request;
+	char name[PORT_PROFILE_MAX];
+	u8 instance_uuid[PORT_UUID_MAX];
+	u8 host_uuid[PORT_UUID_MAX];
+	u8 vf_mac[ETH_ALEN];
+	u8 mac_addr[ETH_ALEN];
+};
+
+/* enic_rfs_fltr_node - rfs filter node in hash table
+ *	@@keys: IPv4 5 tuple
+ *	@flow_id: flow_id of clsf filter provided by kernel
+ *	@fltr_id: filter id of clsf filter returned by adaptor
+ *	@rq_id: desired rq index
+ *	@node: hlist_node
+ */
+struct enic_rfs_fltr_node {
+	struct flow_keys keys;
+	u32 flow_id;
+	u16 fltr_id;
+	u16 rq_id;
+	struct hlist_node node;
+};
+
+/* enic_rfs_flw_tbl - rfs flow table
+ *	@max: Maximum number of filters vNIC supports
+ *	@free: Number of free filters available
+ *	@toclean: hash table index to clean next
+ *	@ht_head: hash table list head
+ *	@lock: spin lock
+ *	@rfs_may_expire: timer function for enic_rps_may_expire_flow
+ */
+struct enic_rfs_flw_tbl {
+	u16 max;
+	int free;
+
+#define ENIC_RFS_FLW_BITSHIFT	(10)
+#define ENIC_RFS_FLW_MASK	((1 << ENIC_RFS_FLW_BITSHIFT) - 1)
+	u16 toclean:ENIC_RFS_FLW_BITSHIFT;
+	struct hlist_head ht_head[1 << ENIC_RFS_FLW_BITSHIFT];
+	spinlock_t lock;
+	struct timer_list rfs_may_expire;
+};
+
+struct vxlan_offload {
+	u16 vxlan_udp_port_number;
+	u8 patch_level;
+	u8 flags;
+};
+
+/* Per-instance private data structure */
+struct enic {
+	struct net_device *netdev;
+	struct pci_dev *pdev;
+	struct vnic_enet_config config;
+	struct vnic_dev_bar bar[ENIC_BARS_MAX];
+	struct vnic_dev *vdev;
+	struct timer_list notify_timer;
+	struct work_struct reset;
+	struct work_struct tx_hang_reset;
+	struct work_struct change_mtu_work;
+	struct msix_entry msix_entry[ENIC_INTR_MAX];
+	struct enic_msix_entry msix[ENIC_INTR_MAX];
+	u32 msg_enable;
+	spinlock_t devcmd_lock;
+	u8 mac_addr[ETH_ALEN];
+	unsigned int flags;
+	unsigned int priv_flags;
+	unsigned int mc_count;
+	unsigned int uc_count;
+	u32 port_mtu;
+	struct enic_rx_coal rx_coalesce_setting;
+	u32 rx_coalesce_usecs;
+	u32 tx_coalesce_usecs;
+#ifdef CONFIG_PCI_IOV
+	u16 num_vfs;
+#endif
+	spinlock_t enic_api_lock;
+	bool enic_api_busy;
+	struct enic_port_profile *pp;
+
+	/* work queue cache line section */
+	____cacheline_aligned struct vnic_wq wq[ENIC_WQ_MAX];
+	spinlock_t wq_lock[ENIC_WQ_MAX];
+	unsigned int wq_count;
+	u16 loop_enable;
+	u16 loop_tag;
+
+	/* receive queue cache line section */
+	____cacheline_aligned struct vnic_rq rq[ENIC_RQ_MAX];
+	unsigned int rq_count;
+	struct vxlan_offload vxlan;
+	u64 rq_truncated_pkts;
+	u64 rq_bad_fcs;
+	struct napi_struct napi[ENIC_RQ_MAX + ENIC_WQ_MAX];
+
+	/* interrupt resource cache line section */
+	____cacheline_aligned struct vnic_intr intr[ENIC_INTR_MAX];
+	unsigned int intr_count;
+	u32 __iomem *legacy_pba;		/* memory-mapped */
+
+	/* completion queue cache line section */
+	____cacheline_aligned struct vnic_cq cq[ENIC_CQ_MAX];
+	unsigned int cq_count;
+	struct enic_rfs_flw_tbl rfs_h;
+	u32 rx_copybreak;
+	u8 rss_key[ENIC_RSS_LEN];
+	struct vnic_gen_stats gen_stats;
+};
+
+static inline struct net_device *vnic_get_netdev(struct vnic_dev *vdev)
+{
+	struct enic *enic = vdev->priv;
+
+	return enic->netdev;
+}
+
+/* wrappers function for kernel log
+ */
+#define vdev_err(vdev, fmt, ...)					\
+	dev_err(&(vdev)->pdev->dev, fmt, ##__VA_ARGS__)
+#define vdev_warn(vdev, fmt, ...)					\
+	dev_warn(&(vdev)->pdev->dev, fmt, ##__VA_ARGS__)
+#define vdev_info(vdev, fmt, ...)					\
+	dev_info(&(vdev)->pdev->dev, fmt, ##__VA_ARGS__)
+
+#define vdev_neterr(vdev, fmt, ...)					\
+	netdev_err(vnic_get_netdev(vdev), fmt, ##__VA_ARGS__)
+#define vdev_netwarn(vdev, fmt, ...)					\
+	netdev_warn(vnic_get_netdev(vdev), fmt, ##__VA_ARGS__)
+#define vdev_netinfo(vdev, fmt, ...)					\
+	netdev_info(vnic_get_netdev(vdev), fmt, ##__VA_ARGS__)
+
+static inline struct device *enic_get_dev(struct enic *enic)
+{
+	return &(enic->pdev->dev);
+}
+
+static inline unsigned int enic_cq_rq(struct enic *enic, unsigned int rq)
+{
+	return rq;
+}
+
+static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
+{
+	return enic->rq_count + wq;
+}
+
+static inline unsigned int enic_msix_rq_intr(struct enic *enic,
+	unsigned int rq)
+{
+	return enic->cq[enic_cq_rq(enic, rq)].interrupt_offset;
+}
+
+static inline unsigned int enic_msix_wq_intr(struct enic *enic,
+	unsigned int wq)
+{
+	return enic->cq[enic_cq_wq(enic, wq)].interrupt_offset;
+}
+
+static inline unsigned int enic_msix_err_intr(struct enic *enic)
+{
+	return enic->rq_count + enic->wq_count;
+}
+
+#define ENIC_LEGACY_IO_INTR	0
+#define ENIC_LEGACY_ERR_INTR	1
+#define ENIC_LEGACY_NOTIFY_INTR	2
+
+static inline unsigned int enic_msix_notify_intr(struct enic *enic)
+{
+	return enic->rq_count + enic->wq_count + 1;
+}
+
+static inline bool enic_is_err_intr(struct enic *enic, int intr)
+{
+	switch (vnic_dev_get_intr_mode(enic->vdev)) {
+	case VNIC_DEV_INTR_MODE_INTX:
+		return intr == ENIC_LEGACY_ERR_INTR;
+	case VNIC_DEV_INTR_MODE_MSIX:
+		return intr == enic_msix_err_intr(enic);
+	case VNIC_DEV_INTR_MODE_MSI:
+	default:
+		return false;
+	}
+}
+
+static inline bool enic_is_notify_intr(struct enic *enic, int intr)
+{
+	switch (vnic_dev_get_intr_mode(enic->vdev)) {
+	case VNIC_DEV_INTR_MODE_INTX:
+		return intr == ENIC_LEGACY_NOTIFY_INTR;
+	case VNIC_DEV_INTR_MODE_MSIX:
+		return intr == enic_msix_notify_intr(enic);
+	case VNIC_DEV_INTR_MODE_MSI:
+	default:
+		return false;
+	}
+}
+
+static inline int enic_dma_map_check(struct enic *enic, dma_addr_t dma_addr)
+{
+	if (unlikely(dma_mapping_error(&enic->pdev->dev, dma_addr))) {
+		net_warn_ratelimited("%s: PCI dma mapping failed!\n",
+				     enic->netdev->name);
+		enic->gen_stats.dma_map_error++;
+
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+void enic_reset_addr_lists(struct enic *enic);
+int enic_sriov_enabled(struct enic *enic);
+int enic_is_valid_vf(struct enic *enic, int vf);
+int enic_is_dynamic(struct enic *enic);
+void enic_set_ethtool_ops(struct net_device *netdev);
+int __enic_set_rsskey(struct enic *enic);
+
+#endif /* _ENIC_H_ */