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, 220 insertions, 0 deletions

diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
new file mode 100644
index 000000000..ec093594b
--- /dev/null
+++ b/include/scsi/scsi.h
@@ -0,0 +1,220 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header file contains public constants and structures used by
+ * the SCSI initiator code.
+ */
+#ifndef _SCSI_SCSI_H
+#define _SCSI_SCSI_H
+
+#include <linux/types.h>
+#include <linux/scatterlist.h>
+#include <linux/kernel.h>
+#include <scsi/scsi_common.h>
+#include <scsi/scsi_proto.h>
+#include <scsi/scsi_status.h>
+
+struct scsi_cmnd;
+
+enum scsi_timeouts {
+	SCSI_DEFAULT_EH_TIMEOUT		= 10 * HZ,
+};
+
+/*
+ * DIX-capable adapters effectively support infinite chaining for the
+ * protection information scatterlist
+ */
+#define SCSI_MAX_PROT_SG_SEGMENTS	0xFFFF
+
+/*
+ * Special value for scanning to specify scanning or rescanning of all
+ * possible channels, (target) ids, or luns on a given shost.
+ */
+#define SCAN_WILD_CARD	~0
+
+/*
+ * standard mode-select header prepended to all mode-select commands
+ */
+
+struct ccs_modesel_head {
+	__u8 _r1;			/* reserved */
+	__u8 medium;		/* device-specific medium type */
+	__u8 _r2;			/* reserved */
+	__u8 block_desc_length;	/* block descriptor length */
+	__u8 density;		/* device-specific density code */
+	__u8 number_blocks_hi;	/* number of blocks in this block desc */
+	__u8 number_blocks_med;
+	__u8 number_blocks_lo;
+	__u8 _r3;
+	__u8 block_length_hi;	/* block length for blocks in this desc */
+	__u8 block_length_med;
+	__u8 block_length_lo;
+};
+
+/*
+ * The Well Known LUNS (SAM-3) in our int representation of a LUN
+ */
+#define SCSI_W_LUN_BASE 0xc100
+#define SCSI_W_LUN_REPORT_LUNS (SCSI_W_LUN_BASE + 1)
+#define SCSI_W_LUN_ACCESS_CONTROL (SCSI_W_LUN_BASE + 2)
+#define SCSI_W_LUN_TARGET_LOG_PAGE (SCSI_W_LUN_BASE + 3)
+
+static inline int scsi_is_wlun(u64 lun)
+{
+	return (lun & 0xff00) == SCSI_W_LUN_BASE;
+}
+
+/**
+ * scsi_status_is_check_condition - check the status return.
+ *
+ * @status: the status passed up from the driver (including host and
+ *          driver components)
+ *
+ * This returns true if the status code is SAM_STAT_CHECK_CONDITION.
+ */
+static inline int scsi_status_is_check_condition(int status)
+{
+	if (status < 0)
+		return false;
+	status &= 0xfe;
+	return status == SAM_STAT_CHECK_CONDITION;
+}
+
+/*
+ *  Extended message codes.
+ */
+#define     EXTENDED_MODIFY_DATA_POINTER    0x00
+#define     EXTENDED_SDTR                   0x01
+#define     EXTENDED_EXTENDED_IDENTIFY      0x02    /* SCSI-I only */
+#define     EXTENDED_WDTR                   0x03
+#define     EXTENDED_PPR                    0x04
+#define     EXTENDED_MODIFY_BIDI_DATA_PTR   0x05
+
+/*
+ * Internal return values.
+ */
+enum scsi_disposition {
+	NEEDS_RETRY		= 0x2001,
+	SUCCESS			= 0x2002,
+	FAILED			= 0x2003,
+	QUEUED			= 0x2004,
+	SOFT_ERROR		= 0x2005,
+	ADD_TO_MLQUEUE		= 0x2006,
+	TIMEOUT_ERROR		= 0x2007,
+	SCSI_RETURN_NOT_HANDLED	= 0x2008,
+	FAST_IO_FAIL		= 0x2009,
+};
+
+/*
+ * Midlevel queue return values.
+ */
+#define SCSI_MLQUEUE_HOST_BUSY   0x1055
+#define SCSI_MLQUEUE_DEVICE_BUSY 0x1056
+#define SCSI_MLQUEUE_EH_RETRY    0x1057
+#define SCSI_MLQUEUE_TARGET_BUSY 0x1058
+
+/*
+ *  Use these to separate status msg and our bytes
+ *
+ *  These are set by:
+ *
+ *      status byte = set from target device
+ *      msg_byte    (unused)
+ *      host_byte   = set by low-level driver to indicate status.
+ */
+#define status_byte(result) (result & 0xff)
+#define host_byte(result)   (((result) >> 16) & 0xff)
+
+#define sense_class(sense)  (((sense) >> 4) & 0x7)
+#define sense_error(sense)  ((sense) & 0xf)
+#define sense_valid(sense)  ((sense) & 0x80)
+
+/*
+ * default timeouts
+*/
+#define FORMAT_UNIT_TIMEOUT		(2 * 60 * 60 * HZ)
+#define START_STOP_TIMEOUT		(60 * HZ)
+#define MOVE_MEDIUM_TIMEOUT		(5 * 60 * HZ)
+#define READ_ELEMENT_STATUS_TIMEOUT	(5 * 60 * HZ)
+#define READ_DEFECT_DATA_TIMEOUT	(60 * HZ )
+
+
+#define IDENTIFY_BASE       0x80
+#define IDENTIFY(can_disconnect, lun)   (IDENTIFY_BASE |\
+		     ((can_disconnect) ?  0x40 : 0) |\
+		     ((lun) & 0x07))
+
+/*
+ *  struct scsi_device::scsi_level values. For SCSI devices other than those
+ *  prior to SCSI-2 (i.e. over 12 years old) this value is (resp[2] + 1)
+ *  where "resp" is a byte array of the response to an INQUIRY. The scsi_level
+ *  variable is visible to the user via sysfs.
+ */
+
+#define SCSI_UNKNOWN    0
+#define SCSI_1          1
+#define SCSI_1_CCS      2
+#define SCSI_2          3
+#define SCSI_3          4        /* SPC */
+#define SCSI_SPC_2      5
+#define SCSI_SPC_3      6
+
+/*
+ * INQ PERIPHERAL QUALIFIERS
+ */
+#define SCSI_INQ_PQ_CON         0x00
+#define SCSI_INQ_PQ_NOT_CON     0x01
+#define SCSI_INQ_PQ_NOT_CAP     0x03
+
+
+/*
+ * Here are some scsi specific ioctl commands which are sometimes useful.
+ *
+ * Note that include/linux/cdrom.h also defines IOCTL 0x5300 - 0x5395
+ */
+
+/* Used to obtain PUN and LUN info.  Conflicts with CDROMAUDIOBUFSIZ */
+#define SCSI_IOCTL_GET_IDLUN		0x5382
+
+/* 0x5383 and 0x5384 were used for SCSI_IOCTL_TAGGED_{ENABLE,DISABLE} */
+
+/* Used to obtain the host number of a device. */
+#define SCSI_IOCTL_PROBE_HOST		0x5385
+
+/* Used to obtain the bus number for a device */
+#define SCSI_IOCTL_GET_BUS_NUMBER	0x5386
+
+/* Used to obtain the PCI location of a device */
+#define SCSI_IOCTL_GET_PCI		0x5387
+
+/** scsi_status_is_good - check the status return.
+ *
+ * @status: the status passed up from the driver (including host and
+ *          driver components)
+ *
+ * This returns true for known good conditions that may be treated as
+ * command completed normally
+ */
+static inline bool scsi_status_is_good(int status)
+{
+	if (status < 0)
+		return false;
+
+	if (host_byte(status) == DID_NO_CONNECT)
+		return false;
+
+	/*
+	 * FIXME: bit0 is listed as reserved in SCSI-2, but is
+	 * significant in SCSI-3.  For now, we follow the SCSI-2
+	 * behaviour and ignore reserved bits.
+	 */
+	status &= 0xfe;
+	return ((status == SAM_STAT_GOOD) ||
+		(status == SAM_STAT_CONDITION_MET) ||
+		/* Next two "intermediate" statuses are obsolete in SAM-4 */
+		(status == SAM_STAT_INTERMEDIATE) ||
+		(status == SAM_STAT_INTERMEDIATE_CONDITION_MET) ||
+		/* FIXME: this is obsolete in SAM-3 */
+		(status == SAM_STAT_COMMAND_TERMINATED));
+}
+
+#endif /* _SCSI_SCSI_H */