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/uapi/scsi/cxlflash_ioctl.h | 276 +++++++++++++++++++++++++++++++++++++ 1 file changed, 276 insertions(+) create mode 100644 include/uapi/scsi/cxlflash_ioctl.h (limited to 'include/uapi/scsi/cxlflash_ioctl.h') diff --git a/include/uapi/scsi/cxlflash_ioctl.h b/include/uapi/scsi/cxlflash_ioctl.h new file mode 100644 index 000000000..513da47aa --- /dev/null +++ b/include/uapi/scsi/cxlflash_ioctl.h @@ -0,0 +1,276 @@ +/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar , IBM Corporation + * Matthew R. Ochs , IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _CXLFLASH_IOCTL_H +#define _CXLFLASH_IOCTL_H + +#include + +/* + * Structure and definitions for all CXL Flash ioctls + */ +#define CXLFLASH_WWID_LEN 16 + +/* + * Structure and flag definitions CXL Flash superpipe ioctls + */ + +#define DK_CXLFLASH_VERSION_0 0 + +struct dk_cxlflash_hdr { + __u16 version; /* Version data */ + __u16 rsvd[3]; /* Reserved for future use */ + __u64 flags; /* Input flags */ + __u64 return_flags; /* Returned flags */ +}; + +/* + * Return flag definitions available to all superpipe ioctls + * + * Similar to the input flags, these are grown from the bottom-up with the + * intention that ioctl-specific return flag definitions would grow from the + * top-down, allowing the two sets to co-exist. While not required/enforced + * at this time, this provides future flexibility. + */ +#define DK_CXLFLASH_ALL_PORTS_ACTIVE 0x0000000000000001ULL +#define DK_CXLFLASH_APP_CLOSE_ADAP_FD 0x0000000000000002ULL +#define DK_CXLFLASH_CONTEXT_SQ_CMD_MODE 0x0000000000000004ULL + +/* + * General Notes: + * ------------- + * The 'context_id' field of all ioctl structures contains the context + * identifier for a context in the lower 32-bits (upper 32-bits are not + * to be used when identifying a context to the AFU). That said, the value + * in its entirety (all 64-bits) is to be treated as an opaque cookie and + * should be presented as such when issuing ioctls. + */ + +/* + * DK_CXLFLASH_ATTACH Notes: + * ------------------------ + * Read/write access permissions are specified via the O_RDONLY, O_WRONLY, + * and O_RDWR flags defined in the fcntl.h header file. + * + * A valid adapter file descriptor (fd >= 0) is only returned on the initial + * attach (successful) of a context. When a context is shared(reused), the user + * is expected to already 'know' the adapter file descriptor associated with the + * context. + */ +#define DK_CXLFLASH_ATTACH_REUSE_CONTEXT 0x8000000000000000ULL + +struct dk_cxlflash_attach { + struct dk_cxlflash_hdr hdr; /* Common fields */ + __u64 num_interrupts; /* Requested number of interrupts */ + __u64 context_id; /* Returned context */ + __u64 mmio_size; /* Returned size of MMIO area */ + __u64 block_size; /* Returned block size, in bytes */ + __u64 adap_fd; /* Returned adapter file descriptor */ + __u64 last_lba; /* Returned last LBA on the device */ + __u64 max_xfer; /* Returned max transfer size, blocks */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +struct dk_cxlflash_detach { + struct dk_cxlflash_hdr hdr; /* Common fields */ + __u64 context_id; /* Context to detach */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +struct dk_cxlflash_udirect { + struct dk_cxlflash_hdr hdr; /* Common fields */ + __u64 context_id; /* Context to own physical resources */ + __u64 rsrc_handle; /* Returned resource handle */ + __u64 last_lba; /* Returned last LBA on the device */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +#define DK_CXLFLASH_UVIRTUAL_NEED_WRITE_SAME 0x8000000000000000ULL + +struct dk_cxlflash_uvirtual { + struct dk_cxlflash_hdr hdr; /* Common fields */ + __u64 context_id; /* Context to own virtual resources */ + __u64 lun_size; /* Requested size, in 4K blocks */ + __u64 rsrc_handle; /* Returned resource handle */ + __u64 last_lba; /* Returned last LBA of LUN */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +struct dk_cxlflash_release { + struct dk_cxlflash_hdr hdr; /* Common fields */ + __u64 context_id; /* Context owning resources */ + __u64 rsrc_handle; /* Resource handle to release */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +struct dk_cxlflash_resize { + struct dk_cxlflash_hdr hdr; /* Common fields */ + __u64 context_id; /* Context owning resources */ + __u64 rsrc_handle; /* Resource handle of LUN to resize */ + __u64 req_size; /* New requested size, in 4K blocks */ + __u64 last_lba; /* Returned last LBA of LUN */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +struct dk_cxlflash_clone { + struct dk_cxlflash_hdr hdr; /* Common fields */ + __u64 context_id_src; /* Context to clone from */ + __u64 context_id_dst; /* Context to clone to */ + __u64 adap_fd_src; /* Source context adapter fd */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +#define DK_CXLFLASH_VERIFY_SENSE_LEN 18 +#define DK_CXLFLASH_VERIFY_HINT_SENSE 0x8000000000000000ULL + +struct dk_cxlflash_verify { + struct dk_cxlflash_hdr hdr; /* Common fields */ + __u64 context_id; /* Context owning resources to verify */ + __u64 rsrc_handle; /* Resource handle of LUN */ + __u64 hint; /* Reasons for verify */ + __u64 last_lba; /* Returned last LBA of device */ + __u8 sense_data[DK_CXLFLASH_VERIFY_SENSE_LEN]; /* SCSI sense data */ + __u8 pad[6]; /* Pad to next 8-byte boundary */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +#define DK_CXLFLASH_RECOVER_AFU_CONTEXT_RESET 0x8000000000000000ULL + +struct dk_cxlflash_recover_afu { + struct dk_cxlflash_hdr hdr; /* Common fields */ + __u64 reason; /* Reason for recovery request */ + __u64 context_id; /* Context to recover / updated ID */ + __u64 mmio_size; /* Returned size of MMIO area */ + __u64 adap_fd; /* Returned adapter file descriptor */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +#define DK_CXLFLASH_MANAGE_LUN_WWID_LEN CXLFLASH_WWID_LEN +#define DK_CXLFLASH_MANAGE_LUN_ENABLE_SUPERPIPE 0x8000000000000000ULL +#define DK_CXLFLASH_MANAGE_LUN_DISABLE_SUPERPIPE 0x4000000000000000ULL +#define DK_CXLFLASH_MANAGE_LUN_ALL_PORTS_ACCESSIBLE 0x2000000000000000ULL + +struct dk_cxlflash_manage_lun { + struct dk_cxlflash_hdr hdr; /* Common fields */ + __u8 wwid[DK_CXLFLASH_MANAGE_LUN_WWID_LEN]; /* Page83 WWID, NAA-6 */ + __u64 reserved[8]; /* Rsvd, future use */ +}; + +union cxlflash_ioctls { + struct dk_cxlflash_attach attach; + struct dk_cxlflash_detach detach; + struct dk_cxlflash_udirect udirect; + struct dk_cxlflash_uvirtual uvirtual; + struct dk_cxlflash_release release; + struct dk_cxlflash_resize resize; + struct dk_cxlflash_clone clone; + struct dk_cxlflash_verify verify; + struct dk_cxlflash_recover_afu recover_afu; + struct dk_cxlflash_manage_lun manage_lun; +}; + +#define MAX_CXLFLASH_IOCTL_SZ (sizeof(union cxlflash_ioctls)) + +#define CXL_MAGIC 0xCA +#define CXL_IOWR(_n, _s) _IOWR(CXL_MAGIC, _n, struct _s) + +/* + * CXL Flash superpipe ioctls start at base of the reserved CXL_MAGIC + * region (0x80) and grow upwards. + */ +#define DK_CXLFLASH_ATTACH CXL_IOWR(0x80, dk_cxlflash_attach) +#define DK_CXLFLASH_USER_DIRECT CXL_IOWR(0x81, dk_cxlflash_udirect) +#define DK_CXLFLASH_RELEASE CXL_IOWR(0x82, dk_cxlflash_release) +#define DK_CXLFLASH_DETACH CXL_IOWR(0x83, dk_cxlflash_detach) +#define DK_CXLFLASH_VERIFY CXL_IOWR(0x84, dk_cxlflash_verify) +#define DK_CXLFLASH_RECOVER_AFU CXL_IOWR(0x85, dk_cxlflash_recover_afu) +#define DK_CXLFLASH_MANAGE_LUN CXL_IOWR(0x86, dk_cxlflash_manage_lun) +#define DK_CXLFLASH_USER_VIRTUAL CXL_IOWR(0x87, dk_cxlflash_uvirtual) +#define DK_CXLFLASH_VLUN_RESIZE CXL_IOWR(0x88, dk_cxlflash_resize) +#define DK_CXLFLASH_VLUN_CLONE CXL_IOWR(0x89, dk_cxlflash_clone) + +/* + * Structure and flag definitions CXL Flash host ioctls + */ + +#define HT_CXLFLASH_VERSION_0 0 + +struct ht_cxlflash_hdr { + __u16 version; /* Version data */ + __u16 subcmd; /* Sub-command */ + __u16 rsvd[2]; /* Reserved for future use */ + __u64 flags; /* Input flags */ + __u64 return_flags; /* Returned flags */ +}; + +/* + * Input flag definitions available to all host ioctls + * + * These are grown from the bottom-up with the intention that ioctl-specific + * input flag definitions would grow from the top-down, allowing the two sets + * to co-exist. While not required/enforced at this time, this provides future + * flexibility. + */ +#define HT_CXLFLASH_HOST_READ 0x0000000000000000ULL +#define HT_CXLFLASH_HOST_WRITE 0x0000000000000001ULL + +#define HT_CXLFLASH_LUN_PROVISION_SUBCMD_CREATE_LUN 0x0001 +#define HT_CXLFLASH_LUN_PROVISION_SUBCMD_DELETE_LUN 0x0002 +#define HT_CXLFLASH_LUN_PROVISION_SUBCMD_QUERY_PORT 0x0003 + +struct ht_cxlflash_lun_provision { + struct ht_cxlflash_hdr hdr; /* Common fields */ + __u16 port; /* Target port for provision request */ + __u16 reserved16[3]; /* Reserved for future use */ + __u64 size; /* Size of LUN (4K blocks) */ + __u64 lun_id; /* SCSI LUN ID */ + __u8 wwid[CXLFLASH_WWID_LEN];/* Page83 WWID, NAA-6 */ + __u64 max_num_luns; /* Maximum number of LUNs provisioned */ + __u64 cur_num_luns; /* Current number of LUNs provisioned */ + __u64 max_cap_port; /* Total capacity for port (4K blocks) */ + __u64 cur_cap_port; /* Current capacity for port (4K blocks) */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +#define HT_CXLFLASH_AFU_DEBUG_MAX_DATA_LEN 262144 /* 256K */ +#define HT_CXLFLASH_AFU_DEBUG_SUBCMD_LEN 12 +struct ht_cxlflash_afu_debug { + struct ht_cxlflash_hdr hdr; /* Common fields */ + __u8 reserved8[4]; /* Reserved for future use */ + __u8 afu_subcmd[HT_CXLFLASH_AFU_DEBUG_SUBCMD_LEN]; /* AFU subcommand, + * (pass through) + */ + __u64 data_ea; /* Data buffer effective address */ + __u32 data_len; /* Data buffer length */ + __u32 reserved32; /* Reserved for future use */ + __u64 reserved[8]; /* Reserved for future use */ +}; + +union cxlflash_ht_ioctls { + struct ht_cxlflash_lun_provision lun_provision; + struct ht_cxlflash_afu_debug afu_debug; +}; + +#define MAX_HT_CXLFLASH_IOCTL_SZ (sizeof(union cxlflash_ht_ioctls)) + +/* + * CXL Flash host ioctls start at the top of the reserved CXL_MAGIC + * region (0xBF) and grow downwards. + */ +#define HT_CXLFLASH_LUN_PROVISION CXL_IOWR(0xBF, ht_cxlflash_lun_provision) +#define HT_CXLFLASH_AFU_DEBUG CXL_IOWR(0xBE, ht_cxlflash_afu_debug) + + +#endif /* ifndef _CXLFLASH_IOCTL_H */ -- cgit v1.2.3