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/rdma/hfi/hfi1_ioctl.h | 174 ++++++++++++++++++++++++ include/uapi/rdma/hfi/hfi1_user.h | 268 +++++++++++++++++++++++++++++++++++++ 2 files changed, 442 insertions(+) create mode 100644 include/uapi/rdma/hfi/hfi1_ioctl.h create mode 100644 include/uapi/rdma/hfi/hfi1_user.h (limited to 'include/uapi/rdma/hfi') diff --git a/include/uapi/rdma/hfi/hfi1_ioctl.h b/include/uapi/rdma/hfi/hfi1_ioctl.h new file mode 100644 index 000000000..8f3d9fe7b --- /dev/null +++ b/include/uapi/rdma/hfi/hfi1_ioctl.h @@ -0,0 +1,174 @@ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ +/* + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2015 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * BSD LICENSE + * + * Copyright(c) 2015 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * - Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef _LINUX__HFI1_IOCTL_H +#define _LINUX__HFI1_IOCTL_H +#include + +/* + * This structure is passed to the driver to tell it where + * user code buffers are, sizes, etc. The offsets and sizes of the + * fields must remain unchanged, for binary compatibility. It can + * be extended, if userversion is changed so user code can tell, if needed + */ +struct hfi1_user_info { + /* + * version of user software, to detect compatibility issues. + * Should be set to HFI1_USER_SWVERSION. + */ + __u32 userversion; + __u32 pad; + /* + * If two or more processes wish to share a context, each process + * must set the subcontext_cnt and subcontext_id to the same + * values. The only restriction on the subcontext_id is that + * it be unique for a given node. + */ + __u16 subctxt_cnt; + __u16 subctxt_id; + /* 128bit UUID passed in by PSM. */ + __u8 uuid[16]; +}; + +struct hfi1_ctxt_info { + __aligned_u64 runtime_flags; /* chip/drv runtime flags (HFI1_CAP_*) */ + __u32 rcvegr_size; /* size of each eager buffer */ + __u16 num_active; /* number of active units */ + __u16 unit; /* unit (chip) assigned to caller */ + __u16 ctxt; /* ctxt on unit assigned to caller */ + __u16 subctxt; /* subctxt on unit assigned to caller */ + __u16 rcvtids; /* number of Rcv TIDs for this context */ + __u16 credits; /* number of PIO credits for this context */ + __u16 numa_node; /* NUMA node of the assigned device */ + __u16 rec_cpu; /* cpu # for affinity (0xffff if none) */ + __u16 send_ctxt; /* send context in use by this user context */ + __u16 egrtids; /* number of RcvArray entries for Eager Rcvs */ + __u16 rcvhdrq_cnt; /* number of RcvHdrQ entries */ + __u16 rcvhdrq_entsize; /* size (in bytes) for each RcvHdrQ entry */ + __u16 sdma_ring_size; /* number of entries in SDMA request ring */ +}; + +struct hfi1_tid_info { + /* virtual address of first page in transfer */ + __aligned_u64 vaddr; + /* pointer to tid array. this array is big enough */ + __aligned_u64 tidlist; + /* number of tids programmed by this request */ + __u32 tidcnt; + /* length of transfer buffer programmed by this request */ + __u32 length; +}; + +/* + * This structure is returned by the driver immediately after + * open to get implementation-specific info, and info specific to this + * instance. + * + * This struct must have explicit pad fields where type sizes + * may result in different alignments between 32 and 64 bit + * programs, since the 64 bit * bit kernel requires the user code + * to have matching offsets + */ +struct hfi1_base_info { + /* version of hardware, for feature checking. */ + __u32 hw_version; + /* version of software, for feature checking. */ + __u32 sw_version; + /* Job key */ + __u16 jkey; + __u16 padding1; + /* + * The special QP (queue pair) value that identifies PSM + * protocol packet from standard IB packets. + */ + __u32 bthqp; + /* PIO credit return address, */ + __aligned_u64 sc_credits_addr; + /* + * Base address of write-only pio buffers for this process. + * Each buffer has sendpio_credits*64 bytes. + */ + __aligned_u64 pio_bufbase_sop; + /* + * Base address of write-only pio buffers for this process. + * Each buffer has sendpio_credits*64 bytes. + */ + __aligned_u64 pio_bufbase; + /* address where receive buffer queue is mapped into */ + __aligned_u64 rcvhdr_bufbase; + /* base address of Eager receive buffers. */ + __aligned_u64 rcvegr_bufbase; + /* base address of SDMA completion ring */ + __aligned_u64 sdma_comp_bufbase; + /* + * User register base for init code, not to be used directly by + * protocol or applications. Always maps real chip register space. + * the register addresses are: + * ur_rcvhdrhead, ur_rcvhdrtail, ur_rcvegrhead, ur_rcvegrtail, + * ur_rcvtidflow + */ + __aligned_u64 user_regbase; + /* notification events */ + __aligned_u64 events_bufbase; + /* status page */ + __aligned_u64 status_bufbase; + /* rcvhdrtail update */ + __aligned_u64 rcvhdrtail_base; + /* + * shared memory pages for subctxts if ctxt is shared; these cover + * all the processes in the group sharing a single context. + * all have enough space for the num_subcontexts value on this job. + */ + __aligned_u64 subctxt_uregbase; + __aligned_u64 subctxt_rcvegrbuf; + __aligned_u64 subctxt_rcvhdrbuf; +}; +#endif /* _LINIUX__HFI1_IOCTL_H */ diff --git a/include/uapi/rdma/hfi/hfi1_user.h b/include/uapi/rdma/hfi/hfi1_user.h new file mode 100644 index 000000000..1106a7c90 --- /dev/null +++ b/include/uapi/rdma/hfi/hfi1_user.h @@ -0,0 +1,268 @@ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ +/* + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2015 - 2020 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * BSD LICENSE + * + * Copyright(c) 2015 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * - Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +/* + * This file contains defines, structures, etc. that are used + * to communicate between kernel and user code. + */ + +#ifndef _LINUX__HFI1_USER_H +#define _LINUX__HFI1_USER_H + +#include +#include + +/* + * This version number is given to the driver by the user code during + * initialization in the spu_userversion field of hfi1_user_info, so + * the driver can check for compatibility with user code. + * + * The major version changes when data structures change in an incompatible + * way. The driver must be the same for initialization to succeed. + */ +#define HFI1_USER_SWMAJOR 6 + +/* + * Minor version differences are always compatible + * a within a major version, however if user software is larger + * than driver software, some new features and/or structure fields + * may not be implemented; the user code must deal with this if it + * cares, or it must abort after initialization reports the difference. + */ +#define HFI1_USER_SWMINOR 3 + +/* + * We will encode the major/minor inside a single 32bit version number. + */ +#define HFI1_SWMAJOR_SHIFT 16 + +/* + * Set of HW and driver capability/feature bits. + * These bit values are used to configure enabled/disabled HW and + * driver features. The same set of bits are communicated to user + * space. + */ +#define HFI1_CAP_DMA_RTAIL (1UL << 0) /* Use DMA'ed RTail value */ +#define HFI1_CAP_SDMA (1UL << 1) /* Enable SDMA support */ +#define HFI1_CAP_SDMA_AHG (1UL << 2) /* Enable SDMA AHG support */ +#define HFI1_CAP_EXTENDED_PSN (1UL << 3) /* Enable Extended PSN support */ +#define HFI1_CAP_HDRSUPP (1UL << 4) /* Enable Header Suppression */ +#define HFI1_CAP_TID_RDMA (1UL << 5) /* Enable TID RDMA operations */ +#define HFI1_CAP_USE_SDMA_HEAD (1UL << 6) /* DMA Hdr Q tail vs. use CSR */ +#define HFI1_CAP_MULTI_PKT_EGR (1UL << 7) /* Enable multi-packet Egr buffs*/ +#define HFI1_CAP_NODROP_RHQ_FULL (1UL << 8) /* Don't drop on Hdr Q full */ +#define HFI1_CAP_NODROP_EGR_FULL (1UL << 9) /* Don't drop on EGR buffs full */ +#define HFI1_CAP_TID_UNMAP (1UL << 10) /* Disable Expected TID caching */ +#define HFI1_CAP_PRINT_UNIMPL (1UL << 11) /* Show for unimplemented feats */ +#define HFI1_CAP_ALLOW_PERM_JKEY (1UL << 12) /* Allow use of permissive JKEY */ +#define HFI1_CAP_NO_INTEGRITY (1UL << 13) /* Enable ctxt integrity checks */ +#define HFI1_CAP_PKEY_CHECK (1UL << 14) /* Enable ctxt PKey checking */ +#define HFI1_CAP_STATIC_RATE_CTRL (1UL << 15) /* Allow PBC.StaticRateControl */ +#define HFI1_CAP_OPFN (1UL << 16) /* Enable the OPFN protocol */ +#define HFI1_CAP_SDMA_HEAD_CHECK (1UL << 17) /* SDMA head checking */ +#define HFI1_CAP_EARLY_CREDIT_RETURN (1UL << 18) /* early credit return */ +#define HFI1_CAP_AIP (1UL << 19) /* Enable accelerated IP */ + +#define HFI1_RCVHDR_ENTSIZE_2 (1UL << 0) +#define HFI1_RCVHDR_ENTSIZE_16 (1UL << 1) +#define HFI1_RCVDHR_ENTSIZE_32 (1UL << 2) + +#define _HFI1_EVENT_FROZEN_BIT 0 +#define _HFI1_EVENT_LINKDOWN_BIT 1 +#define _HFI1_EVENT_LID_CHANGE_BIT 2 +#define _HFI1_EVENT_LMC_CHANGE_BIT 3 +#define _HFI1_EVENT_SL2VL_CHANGE_BIT 4 +#define _HFI1_EVENT_TID_MMU_NOTIFY_BIT 5 +#define _HFI1_MAX_EVENT_BIT _HFI1_EVENT_TID_MMU_NOTIFY_BIT + +#define HFI1_EVENT_FROZEN (1UL << _HFI1_EVENT_FROZEN_BIT) +#define HFI1_EVENT_LINKDOWN (1UL << _HFI1_EVENT_LINKDOWN_BIT) +#define HFI1_EVENT_LID_CHANGE (1UL << _HFI1_EVENT_LID_CHANGE_BIT) +#define HFI1_EVENT_LMC_CHANGE (1UL << _HFI1_EVENT_LMC_CHANGE_BIT) +#define HFI1_EVENT_SL2VL_CHANGE (1UL << _HFI1_EVENT_SL2VL_CHANGE_BIT) +#define HFI1_EVENT_TID_MMU_NOTIFY (1UL << _HFI1_EVENT_TID_MMU_NOTIFY_BIT) + +/* + * These are the status bits readable (in ASCII form, 64bit value) + * from the "status" sysfs file. For binary compatibility, values + * must remain as is; removed states can be reused for different + * purposes. + */ +#define HFI1_STATUS_INITTED 0x1 /* basic initialization done */ +/* Chip has been found and initialized */ +#define HFI1_STATUS_CHIP_PRESENT 0x20 +/* IB link is at ACTIVE, usable for data traffic */ +#define HFI1_STATUS_IB_READY 0x40 +/* link is configured, LID, MTU, etc. have been set */ +#define HFI1_STATUS_IB_CONF 0x80 +/* A Fatal hardware error has occurred. */ +#define HFI1_STATUS_HWERROR 0x200 + +/* + * Number of supported shared contexts. + * This is the maximum number of software contexts that can share + * a hardware send/receive context. + */ +#define HFI1_MAX_SHARED_CTXTS 8 + +/* + * Poll types + */ +#define HFI1_POLL_TYPE_ANYRCV 0x0 +#define HFI1_POLL_TYPE_URGENT 0x1 + +enum hfi1_sdma_comp_state { + FREE = 0, + QUEUED, + COMPLETE, + ERROR +}; + +/* + * SDMA completion ring entry + */ +struct hfi1_sdma_comp_entry { + __u32 status; + __u32 errcode; +}; + +/* + * Device status and notifications from driver to user-space. + */ +struct hfi1_status { + __aligned_u64 dev; /* device/hw status bits */ + __aligned_u64 port; /* port state and status bits */ + char freezemsg[]; +}; + +enum sdma_req_opcode { + EXPECTED = 0, + EAGER +}; + +#define HFI1_SDMA_REQ_VERSION_MASK 0xF +#define HFI1_SDMA_REQ_VERSION_SHIFT 0x0 +#define HFI1_SDMA_REQ_OPCODE_MASK 0xF +#define HFI1_SDMA_REQ_OPCODE_SHIFT 0x4 +#define HFI1_SDMA_REQ_IOVCNT_MASK 0xFF +#define HFI1_SDMA_REQ_IOVCNT_SHIFT 0x8 + +struct sdma_req_info { + /* + * bits 0-3 - version (currently unused) + * bits 4-7 - opcode (enum sdma_req_opcode) + * bits 8-15 - io vector count + */ + __u16 ctrl; + /* + * Number of fragments contained in this request. + * User-space has already computed how many + * fragment-sized packet the user buffer will be + * split into. + */ + __u16 npkts; + /* + * Size of each fragment the user buffer will be + * split into. + */ + __u16 fragsize; + /* + * Index of the slot in the SDMA completion ring + * this request should be using. User-space is + * in charge of managing its own ring. + */ + __u16 comp_idx; +} __attribute__((__packed__)); + +/* + * SW KDETH header. + * swdata is SW defined portion. + */ +struct hfi1_kdeth_header { + __le32 ver_tid_offset; + __le16 jkey; + __le16 hcrc; + __le32 swdata[7]; +} __attribute__((__packed__)); + +/* + * Structure describing the headers that User space uses. The + * structure above is a subset of this one. + */ +struct hfi1_pkt_header { + __le16 pbc[4]; + __be16 lrh[4]; + __be32 bth[3]; + struct hfi1_kdeth_header kdeth; +} __attribute__((__packed__)); + + +/* + * The list of usermode accessible registers. + */ +enum hfi1_ureg { + /* (RO) DMA RcvHdr to be used next. */ + ur_rcvhdrtail = 0, + /* (RW) RcvHdr entry to be processed next by host. */ + ur_rcvhdrhead = 1, + /* (RO) Index of next Eager index to use. */ + ur_rcvegrindextail = 2, + /* (RW) Eager TID to be processed next */ + ur_rcvegrindexhead = 3, + /* (RO) Receive Eager Offset Tail */ + ur_rcvegroffsettail = 4, + /* For internal use only; max register number. */ + ur_maxreg, + /* (RW) Receive TID flow table */ + ur_rcvtidflowtable = 256 +}; + +#endif /* _LINIUX__HFI1_USER_H */ -- cgit v1.2.3