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(). ... --- drivers/infiniband/sw/siw/iwarp.h | 367 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 367 insertions(+) create mode 100644 drivers/infiniband/sw/siw/iwarp.h (limited to 'drivers/infiniband/sw/siw/iwarp.h') diff --git a/drivers/infiniband/sw/siw/iwarp.h b/drivers/infiniband/sw/siw/iwarp.h new file mode 100644 index 000000000..3f1dedb50 --- /dev/null +++ b/drivers/infiniband/sw/siw/iwarp.h @@ -0,0 +1,367 @@ +/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */ + +/* Authors: Bernard Metzler */ +/* Copyright (c) 2008-2019, IBM Corporation */ + +#ifndef _IWARP_H +#define _IWARP_H + +#include /* RDMA_MAX_PRIVATE_DATA */ +#include +#include + +#define RDMAP_VERSION 1 +#define DDP_VERSION 1 +#define MPA_REVISION_1 1 +#define MPA_REVISION_2 2 +#define MPA_MAX_PRIVDATA RDMA_MAX_PRIVATE_DATA +#define MPA_KEY_REQ "MPA ID Req Frame" +#define MPA_KEY_REP "MPA ID Rep Frame" +#define MPA_IRD_ORD_MASK 0x3fff + +struct mpa_rr_params { + __be16 bits; + __be16 pd_len; +}; + +/* + * MPA request/response header bits & fields + */ +enum { + MPA_RR_FLAG_MARKERS = cpu_to_be16(0x8000), + MPA_RR_FLAG_CRC = cpu_to_be16(0x4000), + MPA_RR_FLAG_REJECT = cpu_to_be16(0x2000), + MPA_RR_FLAG_ENHANCED = cpu_to_be16(0x1000), + MPA_RR_FLAG_GSO_EXP = cpu_to_be16(0x0800), + MPA_RR_MASK_REVISION = cpu_to_be16(0x00ff) +}; + +/* + * MPA request/reply header + */ +struct mpa_rr { + __u8 key[16]; + struct mpa_rr_params params; +}; + +static inline void __mpa_rr_set_revision(__be16 *bits, u8 rev) +{ + *bits = (*bits & ~MPA_RR_MASK_REVISION) | + (cpu_to_be16(rev) & MPA_RR_MASK_REVISION); +} + +static inline u8 __mpa_rr_revision(__be16 mpa_rr_bits) +{ + __be16 rev = mpa_rr_bits & MPA_RR_MASK_REVISION; + + return be16_to_cpu(rev); +} + +enum mpa_v2_ctrl { + MPA_V2_PEER_TO_PEER = cpu_to_be16(0x8000), + MPA_V2_ZERO_LENGTH_RTR = cpu_to_be16(0x4000), + MPA_V2_RDMA_WRITE_RTR = cpu_to_be16(0x8000), + MPA_V2_RDMA_READ_RTR = cpu_to_be16(0x4000), + MPA_V2_RDMA_NO_RTR = cpu_to_be16(0x0000), + MPA_V2_MASK_IRD_ORD = cpu_to_be16(0x3fff) +}; + +struct mpa_v2_data { + __be16 ird; + __be16 ord; +}; + +struct mpa_marker { + __be16 rsvd; + __be16 fpdu_hmd; /* FPDU header-marker distance (= MPA's FPDUPTR) */ +}; + +/* + * maximum MPA trailer + */ +struct mpa_trailer { + __u8 pad[4]; + __be32 crc; +}; + +#define MPA_HDR_SIZE 2 +#define MPA_CRC_SIZE 4 + +/* + * Common portion of iWARP headers (MPA, DDP, RDMAP) + * for any FPDU + */ +struct iwarp_ctrl { + __be16 mpa_len; + __be16 ddp_rdmap_ctrl; +}; + +/* + * DDP/RDMAP Hdr bits & fields + */ +enum { + DDP_FLAG_TAGGED = cpu_to_be16(0x8000), + DDP_FLAG_LAST = cpu_to_be16(0x4000), + DDP_MASK_RESERVED = cpu_to_be16(0x3C00), + DDP_MASK_VERSION = cpu_to_be16(0x0300), + RDMAP_MASK_VERSION = cpu_to_be16(0x00C0), + RDMAP_MASK_RESERVED = cpu_to_be16(0x0030), + RDMAP_MASK_OPCODE = cpu_to_be16(0x000f) +}; + +static inline u8 __ddp_get_version(struct iwarp_ctrl *ctrl) +{ + return be16_to_cpu(ctrl->ddp_rdmap_ctrl & DDP_MASK_VERSION) >> 8; +} + +static inline u8 __rdmap_get_version(struct iwarp_ctrl *ctrl) +{ + __be16 ver = ctrl->ddp_rdmap_ctrl & RDMAP_MASK_VERSION; + + return be16_to_cpu(ver) >> 6; +} + +static inline u8 __rdmap_get_opcode(struct iwarp_ctrl *ctrl) +{ + return be16_to_cpu(ctrl->ddp_rdmap_ctrl & RDMAP_MASK_OPCODE); +} + +static inline void __rdmap_set_opcode(struct iwarp_ctrl *ctrl, u8 opcode) +{ + ctrl->ddp_rdmap_ctrl = (ctrl->ddp_rdmap_ctrl & ~RDMAP_MASK_OPCODE) | + (cpu_to_be16(opcode) & RDMAP_MASK_OPCODE); +} + +struct iwarp_rdma_write { + struct iwarp_ctrl ctrl; + __be32 sink_stag; + __be64 sink_to; +}; + +struct iwarp_rdma_rreq { + struct iwarp_ctrl ctrl; + __be32 rsvd; + __be32 ddp_qn; + __be32 ddp_msn; + __be32 ddp_mo; + __be32 sink_stag; + __be64 sink_to; + __be32 read_size; + __be32 source_stag; + __be64 source_to; +}; + +struct iwarp_rdma_rresp { + struct iwarp_ctrl ctrl; + __be32 sink_stag; + __be64 sink_to; +}; + +struct iwarp_send { + struct iwarp_ctrl ctrl; + __be32 rsvd; + __be32 ddp_qn; + __be32 ddp_msn; + __be32 ddp_mo; +}; + +struct iwarp_send_inv { + struct iwarp_ctrl ctrl; + __be32 inval_stag; + __be32 ddp_qn; + __be32 ddp_msn; + __be32 ddp_mo; +}; + +struct iwarp_terminate { + struct iwarp_ctrl ctrl; + __be32 rsvd; + __be32 ddp_qn; + __be32 ddp_msn; + __be32 ddp_mo; +#if defined(__LITTLE_ENDIAN_BITFIELD) + __be32 layer : 4; + __be32 etype : 4; + __be32 ecode : 8; + __be32 flag_m : 1; + __be32 flag_d : 1; + __be32 flag_r : 1; + __be32 reserved : 13; +#elif defined(__BIG_ENDIAN_BITFIELD) + __be32 reserved : 13; + __be32 flag_r : 1; + __be32 flag_d : 1; + __be32 flag_m : 1; + __be32 ecode : 8; + __be32 etype : 4; + __be32 layer : 4; +#else +#error "undefined byte order" +#endif +}; + +/* + * Terminate Hdr bits & fields + */ +enum { + TERM_MASK_LAYER = cpu_to_be32(0xf0000000), + TERM_MASK_ETYPE = cpu_to_be32(0x0f000000), + TERM_MASK_ECODE = cpu_to_be32(0x00ff0000), + TERM_FLAG_M = cpu_to_be32(0x00008000), + TERM_FLAG_D = cpu_to_be32(0x00004000), + TERM_FLAG_R = cpu_to_be32(0x00002000), + TERM_MASK_RESVD = cpu_to_be32(0x00001fff) +}; + +static inline u8 __rdmap_term_layer(struct iwarp_terminate *term) +{ + return term->layer; +} + +static inline void __rdmap_term_set_layer(struct iwarp_terminate *term, + u8 layer) +{ + term->layer = layer & 0xf; +} + +static inline u8 __rdmap_term_etype(struct iwarp_terminate *term) +{ + return term->etype; +} + +static inline void __rdmap_term_set_etype(struct iwarp_terminate *term, + u8 etype) +{ + term->etype = etype & 0xf; +} + +static inline u8 __rdmap_term_ecode(struct iwarp_terminate *term) +{ + return term->ecode; +} + +static inline void __rdmap_term_set_ecode(struct iwarp_terminate *term, + u8 ecode) +{ + term->ecode = ecode; +} + +/* + * Common portion of iWARP headers (MPA, DDP, RDMAP) + * for an FPDU carrying an untagged DDP segment + */ +struct iwarp_ctrl_untagged { + struct iwarp_ctrl ctrl; + __be32 rsvd; + __be32 ddp_qn; + __be32 ddp_msn; + __be32 ddp_mo; +}; + +/* + * Common portion of iWARP headers (MPA, DDP, RDMAP) + * for an FPDU carrying a tagged DDP segment + */ +struct iwarp_ctrl_tagged { + struct iwarp_ctrl ctrl; + __be32 ddp_stag; + __be64 ddp_to; +}; + +union iwarp_hdr { + struct iwarp_ctrl ctrl; + struct iwarp_ctrl_untagged c_untagged; + struct iwarp_ctrl_tagged c_tagged; + struct iwarp_rdma_write rwrite; + struct iwarp_rdma_rreq rreq; + struct iwarp_rdma_rresp rresp; + struct iwarp_terminate terminate; + struct iwarp_send send; + struct iwarp_send_inv send_inv; +}; + +enum term_elayer { + TERM_ERROR_LAYER_RDMAP = 0x00, + TERM_ERROR_LAYER_DDP = 0x01, + TERM_ERROR_LAYER_LLP = 0x02 /* eg., MPA */ +}; + +enum ddp_etype { + DDP_ETYPE_CATASTROPHIC = 0x0, + DDP_ETYPE_TAGGED_BUF = 0x1, + DDP_ETYPE_UNTAGGED_BUF = 0x2, + DDP_ETYPE_RSVD = 0x3 +}; + +enum ddp_ecode { + /* unspecified, set to zero */ + DDP_ECODE_CATASTROPHIC = 0x00, + /* Tagged Buffer Errors */ + DDP_ECODE_T_INVALID_STAG = 0x00, + DDP_ECODE_T_BASE_BOUNDS = 0x01, + DDP_ECODE_T_STAG_NOT_ASSOC = 0x02, + DDP_ECODE_T_TO_WRAP = 0x03, + DDP_ECODE_T_VERSION = 0x04, + /* Untagged Buffer Errors */ + DDP_ECODE_UT_INVALID_QN = 0x01, + DDP_ECODE_UT_INVALID_MSN_NOBUF = 0x02, + DDP_ECODE_UT_INVALID_MSN_RANGE = 0x03, + DDP_ECODE_UT_INVALID_MO = 0x04, + DDP_ECODE_UT_MSG_TOOLONG = 0x05, + DDP_ECODE_UT_VERSION = 0x06 +}; + +enum rdmap_untagged_qn { + RDMAP_UNTAGGED_QN_SEND = 0, + RDMAP_UNTAGGED_QN_RDMA_READ = 1, + RDMAP_UNTAGGED_QN_TERMINATE = 2, + RDMAP_UNTAGGED_QN_COUNT = 3 +}; + +enum rdmap_etype { + RDMAP_ETYPE_CATASTROPHIC = 0x0, + RDMAP_ETYPE_REMOTE_PROTECTION = 0x1, + RDMAP_ETYPE_REMOTE_OPERATION = 0x2 +}; + +enum rdmap_ecode { + RDMAP_ECODE_INVALID_STAG = 0x00, + RDMAP_ECODE_BASE_BOUNDS = 0x01, + RDMAP_ECODE_ACCESS_RIGHTS = 0x02, + RDMAP_ECODE_STAG_NOT_ASSOC = 0x03, + RDMAP_ECODE_TO_WRAP = 0x04, + RDMAP_ECODE_VERSION = 0x05, + RDMAP_ECODE_OPCODE = 0x06, + RDMAP_ECODE_CATASTROPHIC_STREAM = 0x07, + RDMAP_ECODE_CATASTROPHIC_GLOBAL = 0x08, + RDMAP_ECODE_CANNOT_INVALIDATE = 0x09, + RDMAP_ECODE_UNSPECIFIED = 0xff +}; + +enum llp_ecode { + LLP_ECODE_TCP_STREAM_LOST = 0x01, /* How to transfer this ?? */ + LLP_ECODE_RECEIVED_CRC = 0x02, + LLP_ECODE_FPDU_START = 0x03, + LLP_ECODE_INVALID_REQ_RESP = 0x04, + + /* Errors for Enhanced Connection Establishment only */ + LLP_ECODE_LOCAL_CATASTROPHIC = 0x05, + LLP_ECODE_INSUFFICIENT_IRD = 0x06, + LLP_ECODE_NO_MATCHING_RTR = 0x07 +}; + +enum llp_etype { LLP_ETYPE_MPA = 0x00 }; + +enum rdma_opcode { + RDMAP_RDMA_WRITE = 0x0, + RDMAP_RDMA_READ_REQ = 0x1, + RDMAP_RDMA_READ_RESP = 0x2, + RDMAP_SEND = 0x3, + RDMAP_SEND_INVAL = 0x4, + RDMAP_SEND_SE = 0x5, + RDMAP_SEND_SE_INVAL = 0x6, + RDMAP_TERMINATE = 0x7, + RDMAP_NOT_SUPPORTED = RDMAP_TERMINATE + 1 +}; + +#endif -- cgit v1.2.3