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, 153 insertions, 0 deletions

diff --git a/include/target/iscsi/iscsi_transport.h b/include/target/iscsi/iscsi_transport.h
new file mode 100644
index 000000000..42cfe02ea
--- /dev/null
+++ b/include/target/iscsi/iscsi_transport.h
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include "iscsi_target_core.h" /* struct iscsit_cmd */
+
+struct sockaddr_storage;
+
+struct iscsit_transport {
+#define ISCSIT_TRANSPORT_NAME	16
+	char name[ISCSIT_TRANSPORT_NAME];
+	int transport_type;
+	bool rdma_shutdown;
+	int priv_size;
+	struct module *owner;
+	struct list_head t_node;
+	int (*iscsit_setup_np)(struct iscsi_np *, struct sockaddr_storage *);
+	int (*iscsit_accept_np)(struct iscsi_np *, struct iscsit_conn *);
+	void (*iscsit_free_np)(struct iscsi_np *);
+	void (*iscsit_wait_conn)(struct iscsit_conn *);
+	void (*iscsit_free_conn)(struct iscsit_conn *);
+	int (*iscsit_get_login_rx)(struct iscsit_conn *, struct iscsi_login *);
+	int (*iscsit_put_login_tx)(struct iscsit_conn *, struct iscsi_login *, u32);
+	int (*iscsit_immediate_queue)(struct iscsit_conn *, struct iscsit_cmd *, int);
+	int (*iscsit_response_queue)(struct iscsit_conn *, struct iscsit_cmd *, int);
+	int (*iscsit_get_dataout)(struct iscsit_conn *, struct iscsit_cmd *, bool);
+	int (*iscsit_queue_data_in)(struct iscsit_conn *, struct iscsit_cmd *);
+	int (*iscsit_queue_status)(struct iscsit_conn *, struct iscsit_cmd *);
+	void (*iscsit_aborted_task)(struct iscsit_conn *, struct iscsit_cmd *);
+	int (*iscsit_xmit_pdu)(struct iscsit_conn *, struct iscsit_cmd *,
+			       struct iscsi_datain_req *, const void *, u32);
+	void (*iscsit_unmap_cmd)(struct iscsit_conn *, struct iscsit_cmd *);
+	void (*iscsit_get_rx_pdu)(struct iscsit_conn *);
+	int (*iscsit_validate_params)(struct iscsit_conn *);
+	void (*iscsit_get_r2t_ttt)(struct iscsit_conn *, struct iscsit_cmd *,
+				   struct iscsi_r2t *);
+	enum target_prot_op (*iscsit_get_sup_prot_ops)(struct iscsit_conn *);
+};
+
+static inline void *iscsit_priv_cmd(struct iscsit_cmd *cmd)
+{
+	return (void *)(cmd + 1);
+}
+
+/*
+ * From iscsi_target_transport.c
+ */
+
+extern void iscsit_register_transport(struct iscsit_transport *);
+extern void iscsit_unregister_transport(struct iscsit_transport *);
+extern struct iscsit_transport *iscsit_get_transport(int);
+extern void iscsit_put_transport(struct iscsit_transport *);
+
+/*
+ * From iscsi_target.c
+ */
+extern int iscsit_setup_scsi_cmd(struct iscsit_conn *, struct iscsit_cmd *,
+				unsigned char *);
+extern void iscsit_set_unsolicited_dataout(struct iscsit_cmd *);
+extern int iscsit_process_scsi_cmd(struct iscsit_conn *, struct iscsit_cmd *,
+				struct iscsi_scsi_req *);
+extern int
+__iscsit_check_dataout_hdr(struct iscsit_conn *, void *,
+			   struct iscsit_cmd *, u32, bool *);
+extern int
+iscsit_check_dataout_hdr(struct iscsit_conn *conn, void *buf,
+			 struct iscsit_cmd **out_cmd);
+extern int iscsit_check_dataout_payload(struct iscsit_cmd *, struct iscsi_data *,
+				bool);
+extern int iscsit_setup_nop_out(struct iscsit_conn *, struct iscsit_cmd *,
+				struct iscsi_nopout *);
+extern int iscsit_process_nop_out(struct iscsit_conn *, struct iscsit_cmd *,
+				struct iscsi_nopout *);
+extern int iscsit_handle_logout_cmd(struct iscsit_conn *, struct iscsit_cmd *,
+				unsigned char *);
+extern int iscsit_handle_task_mgt_cmd(struct iscsit_conn *, struct iscsit_cmd *,
+				unsigned char *);
+extern int iscsit_setup_text_cmd(struct iscsit_conn *, struct iscsit_cmd *,
+				 struct iscsi_text *);
+extern int iscsit_process_text_cmd(struct iscsit_conn *, struct iscsit_cmd *,
+				   struct iscsi_text *);
+extern void iscsit_build_rsp_pdu(struct iscsit_cmd *, struct iscsit_conn *,
+				bool, struct iscsi_scsi_rsp *);
+extern void iscsit_build_nopin_rsp(struct iscsit_cmd *, struct iscsit_conn *,
+				struct iscsi_nopin *, bool);
+extern void iscsit_build_task_mgt_rsp(struct iscsit_cmd *, struct iscsit_conn *,
+				struct iscsi_tm_rsp *);
+extern int iscsit_build_text_rsp(struct iscsit_cmd *, struct iscsit_conn *,
+				struct iscsi_text_rsp *,
+				enum iscsit_transport_type);
+extern void iscsit_build_reject(struct iscsit_cmd *, struct iscsit_conn *,
+				struct iscsi_reject *);
+extern int iscsit_build_logout_rsp(struct iscsit_cmd *, struct iscsit_conn *,
+				struct iscsi_logout_rsp *);
+extern int iscsit_logout_post_handler(struct iscsit_cmd *, struct iscsit_conn *);
+extern int iscsit_queue_rsp(struct iscsit_conn *, struct iscsit_cmd *);
+extern void iscsit_aborted_task(struct iscsit_conn *, struct iscsit_cmd *);
+extern int iscsit_add_reject(struct iscsit_conn *, u8, unsigned char *);
+extern int iscsit_reject_cmd(struct iscsit_cmd *, u8, unsigned char *);
+extern int iscsit_handle_snack(struct iscsit_conn *, unsigned char *);
+extern void iscsit_build_datain_pdu(struct iscsit_cmd *, struct iscsit_conn *,
+				    struct iscsi_datain *,
+				    struct iscsi_data_rsp *, bool);
+extern int iscsit_build_r2ts_for_cmd(struct iscsit_conn *, struct iscsit_cmd *,
+				     bool);
+extern int iscsit_immediate_queue(struct iscsit_conn *, struct iscsit_cmd *, int);
+extern int iscsit_response_queue(struct iscsit_conn *, struct iscsit_cmd *, int);
+/*
+ * From iscsi_target_device.c
+ */
+extern void iscsit_increment_maxcmdsn(struct iscsit_cmd *, struct iscsit_session *);
+/*
+ * From iscsi_target_erl0.c
+ */
+extern void iscsit_cause_connection_reinstatement(struct iscsit_conn *, int);
+/*
+ * From iscsi_target_erl1.c
+ */
+extern void iscsit_stop_dataout_timer(struct iscsit_cmd *);
+
+/*
+ * From iscsi_target_tmr.c
+ */
+extern int iscsit_tmr_post_handler(struct iscsit_cmd *, struct iscsit_conn *);
+
+/*
+ * From iscsi_target_util.c
+ */
+extern struct iscsit_cmd *iscsit_allocate_cmd(struct iscsit_conn *, int);
+extern int iscsit_sequence_cmd(struct iscsit_conn *, struct iscsit_cmd *,
+			       unsigned char *, __be32);
+extern void iscsit_release_cmd(struct iscsit_cmd *);
+extern void iscsit_free_cmd(struct iscsit_cmd *, bool);
+extern void iscsit_add_cmd_to_immediate_queue(struct iscsit_cmd *,
+					      struct iscsit_conn *, u8);
+extern struct iscsit_cmd *
+iscsit_find_cmd_from_itt_or_dump(struct iscsit_conn *conn,
+				 itt_t init_task_tag, u32 length);
+
+/*
+ * From iscsi_target_nego.c
+ */
+extern int iscsi_target_check_login_request(struct iscsit_conn *,
+					    struct iscsi_login *);
+
+/*
+ * From iscsi_target_login.c
+ */
+extern __printf(2, 3) int iscsi_change_param_sprintf(
+	struct iscsit_conn *, const char *, ...);
+
+/*
+ * From iscsi_target_parameters.c
+ */
+extern struct iscsi_param *iscsi_find_param_from_key(
+	char *, struct iscsi_param_list *);