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, 302 insertions, 0 deletions

diff --git a/drivers/crypto/cavium/nitrox/nitrox_dev.h b/drivers/crypto/cavium/nitrox/nitrox_dev.h
new file mode 100644
index 000000000..c2d0c23fb
--- /dev/null
+++ b/drivers/crypto/cavium/nitrox/nitrox_dev.h
@@ -0,0 +1,302 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NITROX_DEV_H
+#define __NITROX_DEV_H
+
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/if.h>
+
+#define VERSION_LEN 32
+/* Maximum queues in PF mode */
+#define MAX_PF_QUEUES	64
+/* Maximum device queues */
+#define MAX_DEV_QUEUES (MAX_PF_QUEUES)
+/* Maximum UCD Blocks */
+#define CNN55XX_MAX_UCD_BLOCKS	8
+
+/**
+ * struct nitrox_cmdq - NITROX command queue
+ * @cmd_qlock: command queue lock
+ * @resp_qlock: response queue lock
+ * @backlog_qlock: backlog queue lock
+ * @ndev: NITROX device
+ * @response_head: submitted request list
+ * @backlog_head: backlog queue
+ * @dbell_csr_addr: doorbell register address for this queue
+ * @compl_cnt_csr_addr: completion count register address of the slc port
+ * @base: command queue base address
+ * @dma: dma address of the base
+ * @pending_count: request pending at device
+ * @backlog_count: backlog request count
+ * @write_idx: next write index for the command
+ * @instr_size: command size
+ * @qno: command queue number
+ * @qsize: command queue size
+ * @unalign_base: unaligned base address
+ * @unalign_dma: unaligned dma address
+ */
+struct nitrox_cmdq {
+	spinlock_t cmd_qlock;
+	spinlock_t resp_qlock;
+	spinlock_t backlog_qlock;
+
+	struct nitrox_device *ndev;
+	struct list_head response_head;
+	struct list_head backlog_head;
+
+	u8 __iomem *dbell_csr_addr;
+	u8 __iomem *compl_cnt_csr_addr;
+	u8 *base;
+	dma_addr_t dma;
+
+	struct work_struct backlog_qflush;
+
+	atomic_t pending_count;
+	atomic_t backlog_count;
+
+	int write_idx;
+	u8 instr_size;
+	u8 qno;
+	u32 qsize;
+
+	u8 *unalign_base;
+	dma_addr_t unalign_dma;
+};
+
+/**
+ * struct nitrox_hw - NITROX hardware information
+ * @partname: partname ex: CNN55xxx-xxx
+ * @fw_name: firmware version
+ * @freq: NITROX frequency
+ * @vendor_id: vendor ID
+ * @device_id: device ID
+ * @revision_id: revision ID
+ * @se_cores: number of symmetric cores
+ * @ae_cores: number of asymmetric cores
+ * @zip_cores: number of zip cores
+ */
+struct nitrox_hw {
+	char partname[IFNAMSIZ * 2];
+	char fw_name[CNN55XX_MAX_UCD_BLOCKS][VERSION_LEN];
+
+	int freq;
+	u16 vendor_id;
+	u16 device_id;
+	u8 revision_id;
+
+	u8 se_cores;
+	u8 ae_cores;
+	u8 zip_cores;
+};
+
+struct nitrox_stats {
+	atomic64_t posted;
+	atomic64_t completed;
+	atomic64_t dropped;
+};
+
+#define IRQ_NAMESZ	32
+
+struct nitrox_q_vector {
+	char name[IRQ_NAMESZ];
+	bool valid;
+	int ring;
+	struct tasklet_struct resp_tasklet;
+	union {
+		struct nitrox_cmdq *cmdq;
+		struct nitrox_device *ndev;
+	};
+};
+
+enum mcode_type {
+	MCODE_TYPE_INVALID,
+	MCODE_TYPE_AE,
+	MCODE_TYPE_SE_SSL,
+	MCODE_TYPE_SE_IPSEC,
+};
+
+/**
+ * mbox_msg - Mailbox message data
+ * @type: message type
+ * @opcode: message opcode
+ * @data: message data
+ */
+union mbox_msg {
+	u64 value;
+	struct {
+		u64 type: 2;
+		u64 opcode: 6;
+		u64 data: 58;
+	};
+	struct {
+		u64 type: 2;
+		u64 opcode: 6;
+		u64 chipid: 8;
+		u64 vfid: 8;
+	} id;
+	struct {
+		u64 type: 2;
+		u64 opcode: 6;
+		u64 count: 4;
+		u64 info: 40;
+		u64 next_se_grp: 3;
+		u64 next_ae_grp: 3;
+	} mcode_info;
+};
+
+/**
+ * nitrox_vfdev - NITROX VF device instance in PF
+ * @state: VF device state
+ * @vfno: VF number
+ * @nr_queues: number of queues enabled in VF
+ * @ring: ring to communicate with VF
+ * @msg: Mailbox message data from VF
+ * @mbx_resp: Mailbox counters
+ */
+struct nitrox_vfdev {
+	atomic_t state;
+	int vfno;
+	int nr_queues;
+	int ring;
+	union mbox_msg msg;
+	atomic64_t mbx_resp;
+};
+
+/**
+ * struct nitrox_iov - SR-IOV information
+ * @num_vfs: number of VF(s) enabled
+ * @max_vf_queues: Maximum number of queues allowed for VF
+ * @vfdev: VF(s) devices
+ * @pf2vf_wq: workqueue for PF2VF communication
+ * @msix: MSI-X entry for PF in SR-IOV case
+ */
+struct nitrox_iov {
+	int num_vfs;
+	int max_vf_queues;
+	struct nitrox_vfdev *vfdev;
+	struct workqueue_struct *pf2vf_wq;
+	struct msix_entry msix;
+};
+
+/*
+ * NITROX Device states
+ */
+enum ndev_state {
+	__NDEV_NOT_READY,
+	__NDEV_READY,
+	__NDEV_IN_RESET,
+};
+
+/* NITROX support modes for VF(s) */
+enum vf_mode {
+	__NDEV_MODE_PF,
+	__NDEV_MODE_VF16,
+	__NDEV_MODE_VF32,
+	__NDEV_MODE_VF64,
+	__NDEV_MODE_VF128,
+};
+
+#define __NDEV_SRIOV_BIT 0
+
+/* command queue size */
+#define DEFAULT_CMD_QLEN 2048
+/* command timeout in milliseconds */
+#define CMD_TIMEOUT 2000
+
+#define DEV(ndev) ((struct device *)(&(ndev)->pdev->dev))
+
+#define NITROX_CSR_ADDR(ndev, offset) \
+	((ndev)->bar_addr + (offset))
+
+/**
+ * struct nitrox_device - NITROX Device Information.
+ * @list: pointer to linked list of devices
+ * @bar_addr: iomap address
+ * @pdev: PCI device information
+ * @state: NITROX device state
+ * @flags: flags to indicate device the features
+ * @timeout: Request timeout in jiffies
+ * @refcnt: Device usage count
+ * @idx: device index (0..N)
+ * @node: NUMA node id attached
+ * @qlen: Command queue length
+ * @nr_queues: Number of command queues
+ * @mode: Device mode PF/VF
+ * @ctx_pool: DMA pool for crypto context
+ * @pkt_inq: Packet input rings
+ * @aqmq: AQM command queues
+ * @qvec: MSI-X queue vectors information
+ * @iov: SR-IOV informatin
+ * @num_vecs: number of MSI-X vectors
+ * @stats: request statistics
+ * @hw: hardware information
+ * @debugfs_dir: debugfs directory
+ */
+struct nitrox_device {
+	struct list_head list;
+
+	u8 __iomem *bar_addr;
+	struct pci_dev *pdev;
+
+	atomic_t state;
+	unsigned long flags;
+	unsigned long timeout;
+	refcount_t refcnt;
+
+	u8 idx;
+	int node;
+	u16 qlen;
+	u16 nr_queues;
+	enum vf_mode mode;
+
+	struct dma_pool *ctx_pool;
+	struct nitrox_cmdq *pkt_inq;
+	struct nitrox_cmdq *aqmq[MAX_DEV_QUEUES] ____cacheline_aligned_in_smp;
+
+	struct nitrox_q_vector *qvec;
+	struct nitrox_iov iov;
+	int num_vecs;
+
+	struct nitrox_stats stats;
+	struct nitrox_hw hw;
+#if IS_ENABLED(CONFIG_DEBUG_FS)
+	struct dentry *debugfs_dir;
+#endif
+};
+
+/**
+ * nitrox_read_csr - Read from device register
+ * @ndev: NITROX device
+ * @offset: offset of the register to read
+ *
+ * Returns: value read
+ */
+static inline u64 nitrox_read_csr(struct nitrox_device *ndev, u64 offset)
+{
+	return readq(ndev->bar_addr + offset);
+}
+
+/**
+ * nitrox_write_csr - Write to device register
+ * @ndev: NITROX device
+ * @offset: offset of the register to write
+ * @value: value to write
+ */
+static inline void nitrox_write_csr(struct nitrox_device *ndev, u64 offset,
+				    u64 value)
+{
+	writeq(value, (ndev->bar_addr + offset));
+}
+
+static inline bool nitrox_ready(struct nitrox_device *ndev)
+{
+	return atomic_read(&ndev->state) == __NDEV_READY;
+}
+
+static inline bool nitrox_vfdev_ready(struct nitrox_vfdev *vfdev)
+{
+	return atomic_read(&vfdev->state) == __NDEV_READY;
+}
+
+#endif /* __NITROX_DEV_H */