From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- include/scsi/viosrp.h | 217 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 217 insertions(+) create mode 100644 include/scsi/viosrp.h (limited to 'include/scsi/viosrp.h') diff --git a/include/scsi/viosrp.h b/include/scsi/viosrp.h new file mode 100644 index 000000000..6c5559d2b --- /dev/null +++ b/include/scsi/viosrp.h @@ -0,0 +1,217 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/*****************************************************************************/ +/* srp.h -- SCSI RDMA Protocol definitions */ +/* */ +/* Written By: Colin Devilbis, IBM Corporation */ +/* */ +/* Copyright (C) 2003 IBM Corporation */ +/* */ +/* */ +/* This file contains structures and definitions for IBM RPA (RS/6000 */ +/* platform architecture) implementation of the SRP (SCSI RDMA Protocol) */ +/* standard. SRP is used on IBM iSeries and pSeries platforms to send SCSI */ +/* commands between logical partitions. */ +/* */ +/* SRP Information Units (IUs) are sent on a "Command/Response Queue" (CRQ) */ +/* between partitions. The definitions in this file are architected, */ +/* and cannot be changed without breaking compatibility with other versions */ +/* of Linux and other operating systems (AIX, OS/400) that talk this protocol*/ +/* between logical partitions */ +/*****************************************************************************/ +#ifndef VIOSRP_H +#define VIOSRP_H +#include + +#define SRP_VERSION "16.a" +#define SRP_MAX_IU_LEN 256 +#define SRP_MAX_LOC_LEN 32 + +union srp_iu { + struct srp_login_req login_req; + struct srp_login_rsp login_rsp; + struct srp_login_rej login_rej; + struct srp_i_logout i_logout; + struct srp_t_logout t_logout; + struct srp_tsk_mgmt tsk_mgmt; + struct srp_cmd cmd; + struct srp_rsp rsp; + u8 reserved[SRP_MAX_IU_LEN]; +}; + +enum viosrp_crq_headers { + VIOSRP_CRQ_FREE = 0x00, + VIOSRP_CRQ_CMD_RSP = 0x80, + VIOSRP_CRQ_INIT_RSP = 0xC0, + VIOSRP_CRQ_XPORT_EVENT = 0xFF +}; + +enum viosrp_crq_init_formats { + VIOSRP_CRQ_INIT = 0x01, + VIOSRP_CRQ_INIT_COMPLETE = 0x02 +}; + +enum viosrp_crq_formats { + VIOSRP_SRP_FORMAT = 0x01, + VIOSRP_MAD_FORMAT = 0x02, + VIOSRP_OS400_FORMAT = 0x03, + VIOSRP_AIX_FORMAT = 0x04, + VIOSRP_LINUX_FORMAT = 0x05, + VIOSRP_INLINE_FORMAT = 0x06 +}; + +enum viosrp_crq_status { + VIOSRP_OK = 0x0, + VIOSRP_NONRECOVERABLE_ERR = 0x1, + VIOSRP_VIOLATES_MAX_XFER = 0x2, + VIOSRP_PARTNER_PANIC = 0x3, + VIOSRP_DEVICE_BUSY = 0x8, + VIOSRP_ADAPTER_FAIL = 0x10, + VIOSRP_OK2 = 0x99, +}; + +struct viosrp_crq { + union { + __be64 high; /* High 64 bits */ + struct { + u8 valid; /* used by RPA */ + u8 format; /* SCSI vs out-of-band */ + u8 reserved; + u8 status; /* non-scsi failure? (e.g. DMA failure) */ + __be16 timeout; /* in seconds */ + __be16 IU_length; /* in bytes */ + }; + }; + __be64 IU_data_ptr; /* the TCE for transferring data */ +}; + +/* MADs are Management requests above and beyond the IUs defined in the SRP + * standard. + */ +enum viosrp_mad_types { + VIOSRP_EMPTY_IU_TYPE = 0x01, + VIOSRP_ERROR_LOG_TYPE = 0x02, + VIOSRP_ADAPTER_INFO_TYPE = 0x03, + VIOSRP_CAPABILITIES_TYPE = 0x05, + VIOSRP_ENABLE_FAST_FAIL = 0x08, +}; + +enum viosrp_mad_status { + VIOSRP_MAD_SUCCESS = 0x00, + VIOSRP_MAD_NOT_SUPPORTED = 0xF1, + VIOSRP_MAD_FAILED = 0xF7, +}; + +enum viosrp_capability_type { + MIGRATION_CAPABILITIES = 0x01, + RESERVATION_CAPABILITIES = 0x02, +}; + +enum viosrp_capability_support { + SERVER_DOES_NOT_SUPPORTS_CAP = 0x0, + SERVER_SUPPORTS_CAP = 0x01, + SERVER_CAP_DATA = 0x02, +}; + +enum viosrp_reserve_type { + CLIENT_RESERVE_SCSI_2 = 0x01, +}; + +enum viosrp_capability_flag { + CLIENT_MIGRATED = 0x01, + CLIENT_RECONNECT = 0x02, + CAP_LIST_SUPPORTED = 0x04, + CAP_LIST_DATA = 0x08, +}; + +/* + * Common MAD header + */ +struct mad_common { + __be32 type; + __be16 status; + __be16 length; + __be64 tag; +}; + +/* + * All SRP (and MAD) requests normally flow from the + * client to the server. There is no way for the server to send + * an asynchronous message back to the client. The Empty IU is used + * to hang out a meaningless request to the server so that it can respond + * asynchrouously with something like a SCSI AER + */ +struct viosrp_empty_iu { + struct mad_common common; + __be64 buffer; + __be32 port; +}; + +struct viosrp_error_log { + struct mad_common common; + __be64 buffer; +}; + +struct viosrp_adapter_info { + struct mad_common common; + __be64 buffer; +}; + +struct viosrp_fast_fail { + struct mad_common common; +}; + +struct viosrp_capabilities { + struct mad_common common; + __be64 buffer; +}; + +struct mad_capability_common { + __be32 cap_type; + __be16 length; + __be16 server_support; +}; + +struct mad_reserve_cap { + struct mad_capability_common common; + __be32 type; +}; + +struct mad_migration_cap { + struct mad_capability_common common; + __be32 ecl; +}; + +struct capabilities { + __be32 flags; + char name[SRP_MAX_LOC_LEN]; + char loc[SRP_MAX_LOC_LEN]; + struct mad_migration_cap migration; + struct mad_reserve_cap reserve; +}; + +union mad_iu { + struct viosrp_empty_iu empty_iu; + struct viosrp_error_log error_log; + struct viosrp_adapter_info adapter_info; + struct viosrp_fast_fail fast_fail; + struct viosrp_capabilities capabilities; +}; + +union viosrp_iu { + union srp_iu srp; + union mad_iu mad; +}; + +struct mad_adapter_info_data { + char srp_version[8]; + char partition_name[96]; + __be32 partition_number; +#define SRP_MAD_VERSION_1 1 + __be32 mad_version; +#define SRP_MAD_OS_LINUX 2 +#define SRP_MAD_OS_AIX 3 + __be32 os_type; + __be32 port_max_txu[8]; /* per-port maximum transfer */ +}; + +#endif -- cgit v1.2.3