440 lines
15 KiB
C
440 lines
15 KiB
C
|
/*
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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 <linux/types.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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 2
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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 */
|
||
|
|
/* 1UL << 5 unused */
|
||
|
|
#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 */
|
||
|
|
/* 1UL << 16 unused */
|
||
|
|
#define HFI1_CAP_SDMA_HEAD_CHECK (1UL << 17) /* SDMA head checking */
|
||
|
|
#define HFI1_CAP_EARLY_CREDIT_RETURN (1UL << 18) /* early credit return */
|
||
|
|
|
||
|
|
#define HFI1_RCVHDR_ENTSIZE_2 (1UL << 0)
|
||
|
|
#define HFI1_RCVHDR_ENTSIZE_16 (1UL << 1)
|
||
|
|
#define HFI1_RCVDHR_ENTSIZE_32 (1UL << 2)
|
||
|
|
|
||
|
|
/* User commands. */
|
||
|
|
#define HFI1_CMD_ASSIGN_CTXT 1 /* allocate HFI and context */
|
||
|
|
#define HFI1_CMD_CTXT_INFO 2 /* find out what resources we got */
|
||
|
|
#define HFI1_CMD_USER_INFO 3 /* set up userspace */
|
||
|
|
#define HFI1_CMD_TID_UPDATE 4 /* update expected TID entries */
|
||
|
|
#define HFI1_CMD_TID_FREE 5 /* free expected TID entries */
|
||
|
|
#define HFI1_CMD_CREDIT_UPD 6 /* force an update of PIO credit */
|
||
|
|
|
||
|
|
#define HFI1_CMD_RECV_CTRL 8 /* control receipt of packets */
|
||
|
|
#define HFI1_CMD_POLL_TYPE 9 /* set the kind of polling we want */
|
||
|
|
#define HFI1_CMD_ACK_EVENT 10 /* ack & clear user status bits */
|
||
|
|
#define HFI1_CMD_SET_PKEY 11 /* set context's pkey */
|
||
|
|
#define HFI1_CMD_CTXT_RESET 12 /* reset context's HW send context */
|
||
|
|
#define HFI1_CMD_TID_INVAL_READ 13 /* read TID cache invalidations */
|
||
|
|
#define HFI1_CMD_GET_VERS 14 /* get the version of the user cdev */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* User IOCTLs can not go above 128 if they do then see common.h and change the
|
||
|
|
* base for the snoop ioctl
|
||
|
|
*/
|
||
|
|
#define IB_IOCTL_MAGIC 0x1b /* See Documentation/ioctl/ioctl-number.txt */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Make the ioctls occupy the last 0xf0-0xff portion of the IB range
|
||
|
|
*/
|
||
|
|
#define __NUM(cmd) (HFI1_CMD_##cmd + 0xe0)
|
||
|
|
|
||
|
|
struct hfi1_cmd;
|
||
|
|
#define HFI1_IOCTL_ASSIGN_CTXT \
|
||
|
|
_IOWR(IB_IOCTL_MAGIC, __NUM(ASSIGN_CTXT), struct hfi1_user_info)
|
||
|
|
#define HFI1_IOCTL_CTXT_INFO \
|
||
|
|
_IOW(IB_IOCTL_MAGIC, __NUM(CTXT_INFO), struct hfi1_ctxt_info)
|
||
|
|
#define HFI1_IOCTL_USER_INFO \
|
||
|
|
_IOW(IB_IOCTL_MAGIC, __NUM(USER_INFO), struct hfi1_base_info)
|
||
|
|
#define HFI1_IOCTL_TID_UPDATE \
|
||
|
|
_IOWR(IB_IOCTL_MAGIC, __NUM(TID_UPDATE), struct hfi1_tid_info)
|
||
|
|
#define HFI1_IOCTL_TID_FREE \
|
||
|
|
_IOWR(IB_IOCTL_MAGIC, __NUM(TID_FREE), struct hfi1_tid_info)
|
||
|
|
#define HFI1_IOCTL_CREDIT_UPD \
|
||
|
|
_IO(IB_IOCTL_MAGIC, __NUM(CREDIT_UPD))
|
||
|
|
#define HFI1_IOCTL_RECV_CTRL \
|
||
|
|
_IOW(IB_IOCTL_MAGIC, __NUM(RECV_CTRL), int)
|
||
|
|
#define HFI1_IOCTL_POLL_TYPE \
|
||
|
|
_IOW(IB_IOCTL_MAGIC, __NUM(POLL_TYPE), int)
|
||
|
|
#define HFI1_IOCTL_ACK_EVENT \
|
||
|
|
_IOW(IB_IOCTL_MAGIC, __NUM(ACK_EVENT), unsigned long)
|
||
|
|
#define HFI1_IOCTL_SET_PKEY \
|
||
|
|
_IOW(IB_IOCTL_MAGIC, __NUM(SET_PKEY), __u16)
|
||
|
|
#define HFI1_IOCTL_CTXT_RESET \
|
||
|
|
_IO(IB_IOCTL_MAGIC, __NUM(CTXT_RESET))
|
||
|
|
#define HFI1_IOCTL_TID_INVAL_READ \
|
||
|
|
_IOWR(IB_IOCTL_MAGIC, __NUM(TID_INVAL_READ), struct hfi1_tid_info)
|
||
|
|
#define HFI1_IOCTL_GET_VERS \
|
||
|
|
_IOR(IB_IOCTL_MAGIC, __NUM(GET_VERS), int)
|
||
|
|
|
||
|
|
#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
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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 {
|
||
|
|
__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 */
|
||
|
|
__u64 vaddr;
|
||
|
|
/* pointer to tid array. this array is big enough */
|
||
|
|
__u64 tidlist;
|
||
|
|
/* number of tids programmed by this request */
|
||
|
|
__u32 tidcnt;
|
||
|
|
/* length of transfer buffer programmed by this request */
|
||
|
|
__u32 length;
|
||
|
|
};
|
||
|
|
|
||
|
|
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 {
|
||
|
|
__u64 dev; /* device/hw status bits */
|
||
|
|
__u64 port; /* port state and status bits */
|
||
|
|
char freezemsg[0];
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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, */
|
||
|
|
__u64 sc_credits_addr;
|
||
|
|
/*
|
||
|
|
* Base address of write-only pio buffers for this process.
|
||
|
|
* Each buffer has sendpio_credits*64 bytes.
|
||
|
|
*/
|
||
|
|
__u64 pio_bufbase_sop;
|
||
|
|
/*
|
||
|
|
* Base address of write-only pio buffers for this process.
|
||
|
|
* Each buffer has sendpio_credits*64 bytes.
|
||
|
|
*/
|
||
|
|
__u64 pio_bufbase;
|
||
|
|
/* address where receive buffer queue is mapped into */
|
||
|
|
__u64 rcvhdr_bufbase;
|
||
|
|
/* base address of Eager receive buffers. */
|
||
|
|
__u64 rcvegr_bufbase;
|
||
|
|
/* base address of SDMA completion ring */
|
||
|
|
__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
|
||
|
|
*/
|
||
|
|
__u64 user_regbase;
|
||
|
|
/* notification events */
|
||
|
|
__u64 events_bufbase;
|
||
|
|
/* status page */
|
||
|
|
__u64 status_bufbase;
|
||
|
|
/* rcvhdrtail update */
|
||
|
|
__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.
|
||
|
|
*/
|
||
|
|
__u64 subctxt_uregbase;
|
||
|
|
__u64 subctxt_rcvegrbuf;
|
||
|
|
__u64 subctxt_rcvhdrbuf;
|
||
|
|
};
|
||
|
|
|
||
|
|
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;
|
||
|
|
} __packed;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* SW KDETH header.
|
||
|
|
* swdata is SW defined portion.
|
||
|
|
*/
|
||
|
|
struct hfi1_kdeth_header {
|
||
|
|
__le32 ver_tid_offset;
|
||
|
|
__le16 jkey;
|
||
|
|
__le16 hcrc;
|
||
|
|
__le32 swdata[7];
|
||
|
|
} __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;
|
||
|
|
} __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 */
|