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/scsi_transport_spi.h | 149 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 149 insertions(+) create mode 100644 include/scsi/scsi_transport_spi.h (limited to 'include/scsi/scsi_transport_spi.h') diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h new file mode 100644 index 000000000..78324502b --- /dev/null +++ b/include/scsi/scsi_transport_spi.h @@ -0,0 +1,149 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Parallel SCSI (SPI) transport specific attributes exported to sysfs. + * + * Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved. + */ +#ifndef SCSI_TRANSPORT_SPI_H +#define SCSI_TRANSPORT_SPI_H + +#include +#include + +struct scsi_transport_template; +struct scsi_target; +struct scsi_device; +struct Scsi_Host; + +struct spi_transport_attrs { + int period; /* value in the PPR/SDTR command */ + int min_period; + int offset; + int max_offset; + unsigned int width:1; /* 0 - narrow, 1 - wide */ + unsigned int max_width:1; + unsigned int iu:1; /* Information Units enabled */ + unsigned int max_iu:1; + unsigned int dt:1; /* DT clocking enabled */ + unsigned int qas:1; /* Quick Arbitration and Selection enabled */ + unsigned int max_qas:1; + unsigned int wr_flow:1; /* Write Flow control enabled */ + unsigned int rd_strm:1; /* Read streaming enabled */ + unsigned int rti:1; /* Retain Training Information */ + unsigned int pcomp_en:1;/* Precompensation enabled */ + unsigned int hold_mcs:1;/* Hold Margin Control Settings */ + unsigned int initial_dv:1; /* DV done to this target yet */ + unsigned long flags; /* flags field for drivers to use */ + /* Device Properties fields */ + unsigned int support_sync:1; /* synchronous support */ + unsigned int support_wide:1; /* wide support */ + unsigned int support_dt:1; /* allows DT phases */ + unsigned int support_dt_only; /* disallows ST phases */ + unsigned int support_ius; /* support Information Units */ + unsigned int support_qas; /* supports quick arbitration and selection */ + /* Private Fields */ + unsigned int dv_pending:1; /* Internal flag: DV Requested */ + unsigned int dv_in_progress:1; /* Internal: DV started */ + struct mutex dv_mutex; /* semaphore to serialise dv */ +}; + +enum spi_signal_type { + SPI_SIGNAL_UNKNOWN = 1, + SPI_SIGNAL_SE, + SPI_SIGNAL_LVD, + SPI_SIGNAL_HVD, +}; + +struct spi_host_attrs { + enum spi_signal_type signalling; +}; + +/* accessor functions */ +#define spi_period(x) (((struct spi_transport_attrs *)&(x)->starget_data)->period) +#define spi_min_period(x) (((struct spi_transport_attrs *)&(x)->starget_data)->min_period) +#define spi_offset(x) (((struct spi_transport_attrs *)&(x)->starget_data)->offset) +#define spi_max_offset(x) (((struct spi_transport_attrs *)&(x)->starget_data)->max_offset) +#define spi_width(x) (((struct spi_transport_attrs *)&(x)->starget_data)->width) +#define spi_max_width(x) (((struct spi_transport_attrs *)&(x)->starget_data)->max_width) +#define spi_iu(x) (((struct spi_transport_attrs *)&(x)->starget_data)->iu) +#define spi_max_iu(x) (((struct spi_transport_attrs *)&(x)->starget_data)->max_iu) +#define spi_dt(x) (((struct spi_transport_attrs *)&(x)->starget_data)->dt) +#define spi_qas(x) (((struct spi_transport_attrs *)&(x)->starget_data)->qas) +#define spi_max_qas(x) (((struct spi_transport_attrs *)&(x)->starget_data)->max_qas) +#define spi_wr_flow(x) (((struct spi_transport_attrs *)&(x)->starget_data)->wr_flow) +#define spi_rd_strm(x) (((struct spi_transport_attrs *)&(x)->starget_data)->rd_strm) +#define spi_rti(x) (((struct spi_transport_attrs *)&(x)->starget_data)->rti) +#define spi_pcomp_en(x) (((struct spi_transport_attrs *)&(x)->starget_data)->pcomp_en) +#define spi_hold_mcs(x) (((struct spi_transport_attrs *)&(x)->starget_data)->hold_mcs) +#define spi_initial_dv(x) (((struct spi_transport_attrs *)&(x)->starget_data)->initial_dv) +#define spi_dv_pending(x) (((struct spi_transport_attrs *)&(x)->starget_data)->dv_pending) + +#define spi_support_sync(x) (((struct spi_transport_attrs *)&(x)->starget_data)->support_sync) +#define spi_support_wide(x) (((struct spi_transport_attrs *)&(x)->starget_data)->support_wide) +#define spi_support_dt(x) (((struct spi_transport_attrs *)&(x)->starget_data)->support_dt) +#define spi_support_dt_only(x) (((struct spi_transport_attrs *)&(x)->starget_data)->support_dt_only) +#define spi_support_ius(x) (((struct spi_transport_attrs *)&(x)->starget_data)->support_ius) +#define spi_support_qas(x) (((struct spi_transport_attrs *)&(x)->starget_data)->support_qas) + +#define spi_flags(x) (((struct spi_transport_attrs *)&(x)->starget_data)->flags) +#define spi_signalling(h) (((struct spi_host_attrs *)(h)->shost_data)->signalling) + + + +/* The functions by which the transport class and the driver communicate */ +struct spi_function_template { + void (*get_period)(struct scsi_target *); + void (*set_period)(struct scsi_target *, int); + void (*get_offset)(struct scsi_target *); + void (*set_offset)(struct scsi_target *, int); + void (*get_width)(struct scsi_target *); + void (*set_width)(struct scsi_target *, int); + void (*get_iu)(struct scsi_target *); + void (*set_iu)(struct scsi_target *, int); + void (*get_dt)(struct scsi_target *); + void (*set_dt)(struct scsi_target *, int); + void (*get_qas)(struct scsi_target *); + void (*set_qas)(struct scsi_target *, int); + void (*get_wr_flow)(struct scsi_target *); + void (*set_wr_flow)(struct scsi_target *, int); + void (*get_rd_strm)(struct scsi_target *); + void (*set_rd_strm)(struct scsi_target *, int); + void (*get_rti)(struct scsi_target *); + void (*set_rti)(struct scsi_target *, int); + void (*get_pcomp_en)(struct scsi_target *); + void (*set_pcomp_en)(struct scsi_target *, int); + void (*get_hold_mcs)(struct scsi_target *); + void (*set_hold_mcs)(struct scsi_target *, int); + void (*get_signalling)(struct Scsi_Host *); + void (*set_signalling)(struct Scsi_Host *, enum spi_signal_type); + int (*deny_binding)(struct scsi_target *); + /* The driver sets these to tell the transport class it + * wants the attributes displayed in sysfs. If the show_ flag + * is not set, the attribute will be private to the transport + * class */ + unsigned long show_period:1; + unsigned long show_offset:1; + unsigned long show_width:1; + unsigned long show_iu:1; + unsigned long show_dt:1; + unsigned long show_qas:1; + unsigned long show_wr_flow:1; + unsigned long show_rd_strm:1; + unsigned long show_rti:1; + unsigned long show_pcomp_en:1; + unsigned long show_hold_mcs:1; +}; + +struct scsi_transport_template *spi_attach_transport(struct spi_function_template *); +void spi_release_transport(struct scsi_transport_template *); +void spi_schedule_dv_device(struct scsi_device *); +void spi_dv_device(struct scsi_device *); +void spi_display_xfer_agreement(struct scsi_target *); +int spi_print_msg(const unsigned char *); +int spi_populate_width_msg(unsigned char *msg, int width); +int spi_populate_sync_msg(unsigned char *msg, int period, int offset); +int spi_populate_ppr_msg(unsigned char *msg, int period, int offset, int width, + int options); +int spi_populate_tag_msg(unsigned char *msg, struct scsi_cmnd *cmd); + +#endif /* SCSI_TRANSPORT_SPI_H */ -- cgit v1.2.3