937 строки
27 KiB
C
937 строки
27 KiB
C
/*
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* Copyright (c) 2006, 2007, 2008 QLogic Corporation. All rights reserved.
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* Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef IPATH_VERBS_H
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#define IPATH_VERBS_H
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/kernel.h>
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#include <linux/interrupt.h>
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#include <linux/kref.h>
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#include <rdma/ib_pack.h>
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#include <rdma/ib_user_verbs.h>
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#include "ipath_kernel.h"
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#define IPATH_MAX_RDMA_ATOMIC 4
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#define QPN_MAX (1 << 24)
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#define QPNMAP_ENTRIES (QPN_MAX / PAGE_SIZE / BITS_PER_BYTE)
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/*
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* Increment this value if any changes that break userspace ABI
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* compatibility are made.
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*/
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#define IPATH_UVERBS_ABI_VERSION 2
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/*
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* Define an ib_cq_notify value that is not valid so we know when CQ
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* notifications are armed.
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*/
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#define IB_CQ_NONE (IB_CQ_NEXT_COMP + 1)
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/* AETH NAK opcode values */
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#define IB_RNR_NAK 0x20
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#define IB_NAK_PSN_ERROR 0x60
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#define IB_NAK_INVALID_REQUEST 0x61
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#define IB_NAK_REMOTE_ACCESS_ERROR 0x62
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#define IB_NAK_REMOTE_OPERATIONAL_ERROR 0x63
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#define IB_NAK_INVALID_RD_REQUEST 0x64
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/* Flags for checking QP state (see ib_ipath_state_ops[]) */
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#define IPATH_POST_SEND_OK 0x01
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#define IPATH_POST_RECV_OK 0x02
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#define IPATH_PROCESS_RECV_OK 0x04
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#define IPATH_PROCESS_SEND_OK 0x08
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#define IPATH_PROCESS_NEXT_SEND_OK 0x10
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#define IPATH_FLUSH_SEND 0x20
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#define IPATH_FLUSH_RECV 0x40
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#define IPATH_PROCESS_OR_FLUSH_SEND \
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(IPATH_PROCESS_SEND_OK | IPATH_FLUSH_SEND)
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/* IB Performance Manager status values */
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#define IB_PMA_SAMPLE_STATUS_DONE 0x00
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#define IB_PMA_SAMPLE_STATUS_STARTED 0x01
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#define IB_PMA_SAMPLE_STATUS_RUNNING 0x02
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/* Mandatory IB performance counter select values. */
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#define IB_PMA_PORT_XMIT_DATA cpu_to_be16(0x0001)
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#define IB_PMA_PORT_RCV_DATA cpu_to_be16(0x0002)
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#define IB_PMA_PORT_XMIT_PKTS cpu_to_be16(0x0003)
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#define IB_PMA_PORT_RCV_PKTS cpu_to_be16(0x0004)
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#define IB_PMA_PORT_XMIT_WAIT cpu_to_be16(0x0005)
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struct ib_reth {
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__be64 vaddr;
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__be32 rkey;
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__be32 length;
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} __attribute__ ((packed));
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struct ib_atomic_eth {
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__be32 vaddr[2]; /* unaligned so access as 2 32-bit words */
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__be32 rkey;
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__be64 swap_data;
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__be64 compare_data;
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} __attribute__ ((packed));
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struct ipath_other_headers {
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__be32 bth[3];
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union {
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struct {
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__be32 deth[2];
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__be32 imm_data;
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} ud;
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struct {
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struct ib_reth reth;
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__be32 imm_data;
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} rc;
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struct {
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__be32 aeth;
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__be32 atomic_ack_eth[2];
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} at;
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__be32 imm_data;
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__be32 aeth;
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struct ib_atomic_eth atomic_eth;
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} u;
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} __attribute__ ((packed));
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/*
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* Note that UD packets with a GRH header are 8+40+12+8 = 68 bytes
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* long (72 w/ imm_data). Only the first 56 bytes of the IB header
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* will be in the eager header buffer. The remaining 12 or 16 bytes
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* are in the data buffer.
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*/
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struct ipath_ib_header {
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__be16 lrh[4];
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union {
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struct {
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struct ib_grh grh;
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struct ipath_other_headers oth;
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} l;
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struct ipath_other_headers oth;
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} u;
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} __attribute__ ((packed));
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struct ipath_pio_header {
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__le32 pbc[2];
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struct ipath_ib_header hdr;
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} __attribute__ ((packed));
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/*
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* There is one struct ipath_mcast for each multicast GID.
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* All attached QPs are then stored as a list of
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* struct ipath_mcast_qp.
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*/
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struct ipath_mcast_qp {
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struct list_head list;
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struct ipath_qp *qp;
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};
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struct ipath_mcast {
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struct rb_node rb_node;
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union ib_gid mgid;
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struct list_head qp_list;
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wait_queue_head_t wait;
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atomic_t refcount;
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int n_attached;
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};
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/* Protection domain */
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struct ipath_pd {
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struct ib_pd ibpd;
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int user; /* non-zero if created from user space */
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};
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/* Address Handle */
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struct ipath_ah {
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struct ib_ah ibah;
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struct ib_ah_attr attr;
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};
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/*
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* This structure is used by ipath_mmap() to validate an offset
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* when an mmap() request is made. The vm_area_struct then uses
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* this as its vm_private_data.
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*/
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struct ipath_mmap_info {
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struct list_head pending_mmaps;
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struct ib_ucontext *context;
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void *obj;
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__u64 offset;
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struct kref ref;
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unsigned size;
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};
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/*
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* This structure is used to contain the head pointer, tail pointer,
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* and completion queue entries as a single memory allocation so
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* it can be mmap'ed into user space.
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*/
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struct ipath_cq_wc {
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u32 head; /* index of next entry to fill */
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u32 tail; /* index of next ib_poll_cq() entry */
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union {
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/* these are actually size ibcq.cqe + 1 */
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struct ib_uverbs_wc uqueue[0];
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struct ib_wc kqueue[0];
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};
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};
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/*
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* The completion queue structure.
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*/
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struct ipath_cq {
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struct ib_cq ibcq;
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struct tasklet_struct comptask;
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spinlock_t lock;
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u8 notify;
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u8 triggered;
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struct ipath_cq_wc *queue;
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struct ipath_mmap_info *ip;
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};
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/*
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* A segment is a linear region of low physical memory.
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* XXX Maybe we should use phys addr here and kmap()/kunmap().
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* Used by the verbs layer.
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*/
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struct ipath_seg {
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void *vaddr;
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size_t length;
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};
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/* The number of ipath_segs that fit in a page. */
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#define IPATH_SEGSZ (PAGE_SIZE / sizeof (struct ipath_seg))
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struct ipath_segarray {
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struct ipath_seg segs[IPATH_SEGSZ];
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};
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struct ipath_mregion {
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struct ib_pd *pd; /* shares refcnt of ibmr.pd */
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u64 user_base; /* User's address for this region */
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u64 iova; /* IB start address of this region */
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size_t length;
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u32 lkey;
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u32 offset; /* offset (bytes) to start of region */
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int access_flags;
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u32 max_segs; /* number of ipath_segs in all the arrays */
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u32 mapsz; /* size of the map array */
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struct ipath_segarray *map[0]; /* the segments */
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};
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/*
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* These keep track of the copy progress within a memory region.
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* Used by the verbs layer.
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*/
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struct ipath_sge {
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struct ipath_mregion *mr;
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void *vaddr; /* kernel virtual address of segment */
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u32 sge_length; /* length of the SGE */
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u32 length; /* remaining length of the segment */
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u16 m; /* current index: mr->map[m] */
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u16 n; /* current index: mr->map[m]->segs[n] */
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};
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/* Memory region */
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struct ipath_mr {
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struct ib_mr ibmr;
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struct ib_umem *umem;
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struct ipath_mregion mr; /* must be last */
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};
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/*
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* Send work request queue entry.
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* The size of the sg_list is determined when the QP is created and stored
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* in qp->s_max_sge.
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*/
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struct ipath_swqe {
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struct ib_send_wr wr; /* don't use wr.sg_list */
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u32 psn; /* first packet sequence number */
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u32 lpsn; /* last packet sequence number */
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u32 ssn; /* send sequence number */
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u32 length; /* total length of data in sg_list */
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struct ipath_sge sg_list[0];
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};
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/*
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* Receive work request queue entry.
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* The size of the sg_list is determined when the QP (or SRQ) is created
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* and stored in qp->r_rq.max_sge (or srq->rq.max_sge).
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*/
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struct ipath_rwqe {
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u64 wr_id;
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u8 num_sge;
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struct ib_sge sg_list[0];
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};
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/*
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* This structure is used to contain the head pointer, tail pointer,
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* and receive work queue entries as a single memory allocation so
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* it can be mmap'ed into user space.
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* Note that the wq array elements are variable size so you can't
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* just index into the array to get the N'th element;
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* use get_rwqe_ptr() instead.
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*/
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struct ipath_rwq {
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u32 head; /* new work requests posted to the head */
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u32 tail; /* receives pull requests from here. */
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struct ipath_rwqe wq[0];
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};
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struct ipath_rq {
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struct ipath_rwq *wq;
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spinlock_t lock;
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u32 size; /* size of RWQE array */
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u8 max_sge;
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};
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struct ipath_srq {
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struct ib_srq ibsrq;
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struct ipath_rq rq;
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struct ipath_mmap_info *ip;
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/* send signal when number of RWQEs < limit */
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u32 limit;
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};
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struct ipath_sge_state {
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struct ipath_sge *sg_list; /* next SGE to be used if any */
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struct ipath_sge sge; /* progress state for the current SGE */
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u8 num_sge;
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u8 static_rate;
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};
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/*
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* This structure holds the information that the send tasklet needs
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* to send a RDMA read response or atomic operation.
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*/
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struct ipath_ack_entry {
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u8 opcode;
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u8 sent;
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u32 psn;
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union {
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struct ipath_sge_state rdma_sge;
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u64 atomic_data;
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};
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};
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/*
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* Variables prefixed with s_ are for the requester (sender).
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* Variables prefixed with r_ are for the responder (receiver).
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* Variables prefixed with ack_ are for responder replies.
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*
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* Common variables are protected by both r_rq.lock and s_lock in that order
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* which only happens in modify_qp() or changing the QP 'state'.
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*/
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struct ipath_qp {
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struct ib_qp ibqp;
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struct ipath_qp *next; /* link list for QPN hash table */
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struct ipath_qp *timer_next; /* link list for ipath_ib_timer() */
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struct ipath_qp *pio_next; /* link for ipath_ib_piobufavail() */
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struct list_head piowait; /* link for wait PIO buf */
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struct list_head timerwait; /* link for waiting for timeouts */
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struct ib_ah_attr remote_ah_attr;
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struct ipath_ib_header s_hdr; /* next packet header to send */
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atomic_t refcount;
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wait_queue_head_t wait;
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wait_queue_head_t wait_dma;
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struct tasklet_struct s_task;
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struct ipath_mmap_info *ip;
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struct ipath_sge_state *s_cur_sge;
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struct ipath_verbs_txreq *s_tx;
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struct ipath_sge_state s_sge; /* current send request data */
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struct ipath_ack_entry s_ack_queue[IPATH_MAX_RDMA_ATOMIC + 1];
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struct ipath_sge_state s_ack_rdma_sge;
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struct ipath_sge_state s_rdma_read_sge;
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struct ipath_sge_state r_sge; /* current receive data */
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spinlock_t s_lock;
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atomic_t s_dma_busy;
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u16 s_pkt_delay;
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u16 s_hdrwords; /* size of s_hdr in 32 bit words */
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u32 s_cur_size; /* size of send packet in bytes */
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u32 s_len; /* total length of s_sge */
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u32 s_rdma_read_len; /* total length of s_rdma_read_sge */
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u32 s_next_psn; /* PSN for next request */
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u32 s_last_psn; /* last response PSN processed */
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u32 s_psn; /* current packet sequence number */
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u32 s_ack_rdma_psn; /* PSN for sending RDMA read responses */
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u32 s_ack_psn; /* PSN for acking sends and RDMA writes */
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u32 s_rnr_timeout; /* number of milliseconds for RNR timeout */
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u32 r_ack_psn; /* PSN for next ACK or atomic ACK */
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u64 r_wr_id; /* ID for current receive WQE */
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unsigned long r_aflags;
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u32 r_len; /* total length of r_sge */
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u32 r_rcv_len; /* receive data len processed */
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u32 r_psn; /* expected rcv packet sequence number */
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u32 r_msn; /* message sequence number */
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u8 state; /* QP state */
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u8 s_state; /* opcode of last packet sent */
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u8 s_ack_state; /* opcode of packet to ACK */
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u8 s_nak_state; /* non-zero if NAK is pending */
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u8 r_state; /* opcode of last packet received */
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u8 r_nak_state; /* non-zero if NAK is pending */
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u8 r_min_rnr_timer; /* retry timeout value for RNR NAKs */
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u8 r_flags;
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u8 r_max_rd_atomic; /* max number of RDMA read/atomic to receive */
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u8 r_head_ack_queue; /* index into s_ack_queue[] */
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u8 qp_access_flags;
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u8 s_max_sge; /* size of s_wq->sg_list */
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u8 s_retry_cnt; /* number of times to retry */
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u8 s_rnr_retry_cnt;
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u8 s_retry; /* requester retry counter */
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u8 s_rnr_retry; /* requester RNR retry counter */
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u8 s_pkey_index; /* PKEY index to use */
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u8 s_max_rd_atomic; /* max number of RDMA read/atomic to send */
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u8 s_num_rd_atomic; /* number of RDMA read/atomic pending */
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u8 s_tail_ack_queue; /* index into s_ack_queue[] */
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u8 s_flags;
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u8 s_dmult;
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u8 s_draining;
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u8 timeout; /* Timeout for this QP */
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enum ib_mtu path_mtu;
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u32 remote_qpn;
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u32 qkey; /* QKEY for this QP (for UD or RD) */
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u32 s_size; /* send work queue size */
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u32 s_head; /* new entries added here */
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u32 s_tail; /* next entry to process */
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u32 s_cur; /* current work queue entry */
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u32 s_last; /* last un-ACK'ed entry */
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u32 s_ssn; /* SSN of tail entry */
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u32 s_lsn; /* limit sequence number (credit) */
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struct ipath_swqe *s_wq; /* send work queue */
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struct ipath_swqe *s_wqe;
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struct ipath_sge *r_ud_sg_list;
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struct ipath_rq r_rq; /* receive work queue */
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struct ipath_sge r_sg_list[0]; /* verified SGEs */
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};
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/*
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* Atomic bit definitions for r_aflags.
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*/
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#define IPATH_R_WRID_VALID 0
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/*
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* Bit definitions for r_flags.
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*/
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#define IPATH_R_REUSE_SGE 0x01
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#define IPATH_R_RDMAR_SEQ 0x02
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/*
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* Bit definitions for s_flags.
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*
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* IPATH_S_FENCE_PENDING - waiting for all prior RDMA read or atomic SWQEs
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* before processing the next SWQE
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* IPATH_S_RDMAR_PENDING - waiting for any RDMA read or atomic SWQEs
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* before processing the next SWQE
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* IPATH_S_WAITING - waiting for RNR timeout or send buffer available.
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* IPATH_S_WAIT_SSN_CREDIT - waiting for RC credits to process next SWQE
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* IPATH_S_WAIT_DMA - waiting for send DMA queue to drain before generating
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* next send completion entry not via send DMA.
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*/
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#define IPATH_S_SIGNAL_REQ_WR 0x01
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#define IPATH_S_FENCE_PENDING 0x02
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#define IPATH_S_RDMAR_PENDING 0x04
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#define IPATH_S_ACK_PENDING 0x08
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#define IPATH_S_BUSY 0x10
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#define IPATH_S_WAITING 0x20
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#define IPATH_S_WAIT_SSN_CREDIT 0x40
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#define IPATH_S_WAIT_DMA 0x80
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#define IPATH_S_ANY_WAIT (IPATH_S_FENCE_PENDING | IPATH_S_RDMAR_PENDING | \
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IPATH_S_WAITING | IPATH_S_WAIT_SSN_CREDIT | IPATH_S_WAIT_DMA)
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#define IPATH_PSN_CREDIT 512
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|
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/*
|
|
* Since struct ipath_swqe is not a fixed size, we can't simply index into
|
|
* struct ipath_qp.s_wq. This function does the array index computation.
|
|
*/
|
|
static inline struct ipath_swqe *get_swqe_ptr(struct ipath_qp *qp,
|
|
unsigned n)
|
|
{
|
|
return (struct ipath_swqe *)((char *)qp->s_wq +
|
|
(sizeof(struct ipath_swqe) +
|
|
qp->s_max_sge *
|
|
sizeof(struct ipath_sge)) * n);
|
|
}
|
|
|
|
/*
|
|
* Since struct ipath_rwqe is not a fixed size, we can't simply index into
|
|
* struct ipath_rwq.wq. This function does the array index computation.
|
|
*/
|
|
static inline struct ipath_rwqe *get_rwqe_ptr(struct ipath_rq *rq,
|
|
unsigned n)
|
|
{
|
|
return (struct ipath_rwqe *)
|
|
((char *) rq->wq->wq +
|
|
(sizeof(struct ipath_rwqe) +
|
|
rq->max_sge * sizeof(struct ib_sge)) * n);
|
|
}
|
|
|
|
/*
|
|
* QPN-map pages start out as NULL, they get allocated upon
|
|
* first use and are never deallocated. This way,
|
|
* large bitmaps are not allocated unless large numbers of QPs are used.
|
|
*/
|
|
struct qpn_map {
|
|
atomic_t n_free;
|
|
void *page;
|
|
};
|
|
|
|
struct ipath_qp_table {
|
|
spinlock_t lock;
|
|
u32 last; /* last QP number allocated */
|
|
u32 max; /* size of the hash table */
|
|
u32 nmaps; /* size of the map table */
|
|
struct ipath_qp **table;
|
|
/* bit map of free numbers */
|
|
struct qpn_map map[QPNMAP_ENTRIES];
|
|
};
|
|
|
|
struct ipath_lkey_table {
|
|
spinlock_t lock;
|
|
u32 next; /* next unused index (speeds search) */
|
|
u32 gen; /* generation count */
|
|
u32 max; /* size of the table */
|
|
struct ipath_mregion **table;
|
|
};
|
|
|
|
struct ipath_opcode_stats {
|
|
u64 n_packets; /* number of packets */
|
|
u64 n_bytes; /* total number of bytes */
|
|
};
|
|
|
|
struct ipath_ibdev {
|
|
struct ib_device ibdev;
|
|
struct ipath_devdata *dd;
|
|
struct list_head pending_mmaps;
|
|
spinlock_t mmap_offset_lock;
|
|
u32 mmap_offset;
|
|
int ib_unit; /* This is the device number */
|
|
u16 sm_lid; /* in host order */
|
|
u8 sm_sl;
|
|
u8 mkeyprot;
|
|
/* non-zero when timer is set */
|
|
unsigned long mkey_lease_timeout;
|
|
|
|
/* The following fields are really per port. */
|
|
struct ipath_qp_table qp_table;
|
|
struct ipath_lkey_table lk_table;
|
|
struct list_head pending[3]; /* FIFO of QPs waiting for ACKs */
|
|
struct list_head piowait; /* list for wait PIO buf */
|
|
struct list_head txreq_free;
|
|
void *txreq_bufs;
|
|
/* list of QPs waiting for RNR timer */
|
|
struct list_head rnrwait;
|
|
spinlock_t pending_lock;
|
|
__be64 sys_image_guid; /* in network order */
|
|
__be64 gid_prefix; /* in network order */
|
|
__be64 mkey;
|
|
|
|
u32 n_pds_allocated; /* number of PDs allocated for device */
|
|
spinlock_t n_pds_lock;
|
|
u32 n_ahs_allocated; /* number of AHs allocated for device */
|
|
spinlock_t n_ahs_lock;
|
|
u32 n_cqs_allocated; /* number of CQs allocated for device */
|
|
spinlock_t n_cqs_lock;
|
|
u32 n_qps_allocated; /* number of QPs allocated for device */
|
|
spinlock_t n_qps_lock;
|
|
u32 n_srqs_allocated; /* number of SRQs allocated for device */
|
|
spinlock_t n_srqs_lock;
|
|
u32 n_mcast_grps_allocated; /* number of mcast groups allocated */
|
|
spinlock_t n_mcast_grps_lock;
|
|
|
|
u64 ipath_sword; /* total dwords sent (sample result) */
|
|
u64 ipath_rword; /* total dwords received (sample result) */
|
|
u64 ipath_spkts; /* total packets sent (sample result) */
|
|
u64 ipath_rpkts; /* total packets received (sample result) */
|
|
/* # of ticks no data sent (sample result) */
|
|
u64 ipath_xmit_wait;
|
|
u64 rcv_errors; /* # of packets with SW detected rcv errs */
|
|
u64 n_unicast_xmit; /* total unicast packets sent */
|
|
u64 n_unicast_rcv; /* total unicast packets received */
|
|
u64 n_multicast_xmit; /* total multicast packets sent */
|
|
u64 n_multicast_rcv; /* total multicast packets received */
|
|
u64 z_symbol_error_counter; /* starting count for PMA */
|
|
u64 z_link_error_recovery_counter; /* starting count for PMA */
|
|
u64 z_link_downed_counter; /* starting count for PMA */
|
|
u64 z_port_rcv_errors; /* starting count for PMA */
|
|
u64 z_port_rcv_remphys_errors; /* starting count for PMA */
|
|
u64 z_port_xmit_discards; /* starting count for PMA */
|
|
u64 z_port_xmit_data; /* starting count for PMA */
|
|
u64 z_port_rcv_data; /* starting count for PMA */
|
|
u64 z_port_xmit_packets; /* starting count for PMA */
|
|
u64 z_port_rcv_packets; /* starting count for PMA */
|
|
u32 z_pkey_violations; /* starting count for PMA */
|
|
u32 z_local_link_integrity_errors; /* starting count for PMA */
|
|
u32 z_excessive_buffer_overrun_errors; /* starting count for PMA */
|
|
u32 z_vl15_dropped; /* starting count for PMA */
|
|
u32 n_rc_resends;
|
|
u32 n_rc_acks;
|
|
u32 n_rc_qacks;
|
|
u32 n_seq_naks;
|
|
u32 n_rdma_seq;
|
|
u32 n_rnr_naks;
|
|
u32 n_other_naks;
|
|
u32 n_timeouts;
|
|
u32 n_pkt_drops;
|
|
u32 n_vl15_dropped;
|
|
u32 n_wqe_errs;
|
|
u32 n_rdma_dup_busy;
|
|
u32 n_piowait;
|
|
u32 n_unaligned;
|
|
u32 port_cap_flags;
|
|
u32 pma_sample_start;
|
|
u32 pma_sample_interval;
|
|
__be16 pma_counter_select[5];
|
|
u16 pma_tag;
|
|
u16 qkey_violations;
|
|
u16 mkey_violations;
|
|
u16 mkey_lease_period;
|
|
u16 pending_index; /* which pending queue is active */
|
|
u8 pma_sample_status;
|
|
u8 subnet_timeout;
|
|
u8 vl_high_limit;
|
|
struct ipath_opcode_stats opstats[128];
|
|
};
|
|
|
|
struct ipath_verbs_counters {
|
|
u64 symbol_error_counter;
|
|
u64 link_error_recovery_counter;
|
|
u64 link_downed_counter;
|
|
u64 port_rcv_errors;
|
|
u64 port_rcv_remphys_errors;
|
|
u64 port_xmit_discards;
|
|
u64 port_xmit_data;
|
|
u64 port_rcv_data;
|
|
u64 port_xmit_packets;
|
|
u64 port_rcv_packets;
|
|
u32 local_link_integrity_errors;
|
|
u32 excessive_buffer_overrun_errors;
|
|
u32 vl15_dropped;
|
|
};
|
|
|
|
struct ipath_verbs_txreq {
|
|
struct ipath_qp *qp;
|
|
struct ipath_swqe *wqe;
|
|
u32 map_len;
|
|
u32 len;
|
|
struct ipath_sge_state *ss;
|
|
struct ipath_pio_header hdr;
|
|
struct ipath_sdma_txreq txreq;
|
|
};
|
|
|
|
static inline struct ipath_mr *to_imr(struct ib_mr *ibmr)
|
|
{
|
|
return container_of(ibmr, struct ipath_mr, ibmr);
|
|
}
|
|
|
|
static inline struct ipath_pd *to_ipd(struct ib_pd *ibpd)
|
|
{
|
|
return container_of(ibpd, struct ipath_pd, ibpd);
|
|
}
|
|
|
|
static inline struct ipath_ah *to_iah(struct ib_ah *ibah)
|
|
{
|
|
return container_of(ibah, struct ipath_ah, ibah);
|
|
}
|
|
|
|
static inline struct ipath_cq *to_icq(struct ib_cq *ibcq)
|
|
{
|
|
return container_of(ibcq, struct ipath_cq, ibcq);
|
|
}
|
|
|
|
static inline struct ipath_srq *to_isrq(struct ib_srq *ibsrq)
|
|
{
|
|
return container_of(ibsrq, struct ipath_srq, ibsrq);
|
|
}
|
|
|
|
static inline struct ipath_qp *to_iqp(struct ib_qp *ibqp)
|
|
{
|
|
return container_of(ibqp, struct ipath_qp, ibqp);
|
|
}
|
|
|
|
static inline struct ipath_ibdev *to_idev(struct ib_device *ibdev)
|
|
{
|
|
return container_of(ibdev, struct ipath_ibdev, ibdev);
|
|
}
|
|
|
|
/*
|
|
* This must be called with s_lock held.
|
|
*/
|
|
static inline void ipath_schedule_send(struct ipath_qp *qp)
|
|
{
|
|
if (qp->s_flags & IPATH_S_ANY_WAIT)
|
|
qp->s_flags &= ~IPATH_S_ANY_WAIT;
|
|
if (!(qp->s_flags & IPATH_S_BUSY))
|
|
tasklet_hi_schedule(&qp->s_task);
|
|
}
|
|
|
|
int ipath_process_mad(struct ib_device *ibdev,
|
|
int mad_flags,
|
|
u8 port_num,
|
|
struct ib_wc *in_wc,
|
|
struct ib_grh *in_grh,
|
|
struct ib_mad *in_mad, struct ib_mad *out_mad);
|
|
|
|
/*
|
|
* Compare the lower 24 bits of the two values.
|
|
* Returns an integer <, ==, or > than zero.
|
|
*/
|
|
static inline int ipath_cmp24(u32 a, u32 b)
|
|
{
|
|
return (((int) a) - ((int) b)) << 8;
|
|
}
|
|
|
|
struct ipath_mcast *ipath_mcast_find(union ib_gid *mgid);
|
|
|
|
int ipath_snapshot_counters(struct ipath_devdata *dd, u64 *swords,
|
|
u64 *rwords, u64 *spkts, u64 *rpkts,
|
|
u64 *xmit_wait);
|
|
|
|
int ipath_get_counters(struct ipath_devdata *dd,
|
|
struct ipath_verbs_counters *cntrs);
|
|
|
|
int ipath_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
|
|
|
|
int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
|
|
|
|
int ipath_mcast_tree_empty(void);
|
|
|
|
__be32 ipath_compute_aeth(struct ipath_qp *qp);
|
|
|
|
struct ipath_qp *ipath_lookup_qpn(struct ipath_qp_table *qpt, u32 qpn);
|
|
|
|
struct ib_qp *ipath_create_qp(struct ib_pd *ibpd,
|
|
struct ib_qp_init_attr *init_attr,
|
|
struct ib_udata *udata);
|
|
|
|
int ipath_destroy_qp(struct ib_qp *ibqp);
|
|
|
|
int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err);
|
|
|
|
int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
|
|
int attr_mask, struct ib_udata *udata);
|
|
|
|
int ipath_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
|
|
int attr_mask, struct ib_qp_init_attr *init_attr);
|
|
|
|
unsigned ipath_free_all_qps(struct ipath_qp_table *qpt);
|
|
|
|
int ipath_init_qp_table(struct ipath_ibdev *idev, int size);
|
|
|
|
void ipath_get_credit(struct ipath_qp *qp, u32 aeth);
|
|
|
|
unsigned ipath_ib_rate_to_mult(enum ib_rate rate);
|
|
|
|
int ipath_verbs_send(struct ipath_qp *qp, struct ipath_ib_header *hdr,
|
|
u32 hdrwords, struct ipath_sge_state *ss, u32 len);
|
|
|
|
void ipath_copy_sge(struct ipath_sge_state *ss, void *data, u32 length);
|
|
|
|
void ipath_skip_sge(struct ipath_sge_state *ss, u32 length);
|
|
|
|
void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
|
|
int has_grh, void *data, u32 tlen, struct ipath_qp *qp);
|
|
|
|
void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
|
|
int has_grh, void *data, u32 tlen, struct ipath_qp *qp);
|
|
|
|
void ipath_restart_rc(struct ipath_qp *qp, u32 psn);
|
|
|
|
void ipath_rc_error(struct ipath_qp *qp, enum ib_wc_status err);
|
|
|
|
int ipath_post_ud_send(struct ipath_qp *qp, struct ib_send_wr *wr);
|
|
|
|
void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
|
|
int has_grh, void *data, u32 tlen, struct ipath_qp *qp);
|
|
|
|
int ipath_alloc_lkey(struct ipath_lkey_table *rkt,
|
|
struct ipath_mregion *mr);
|
|
|
|
void ipath_free_lkey(struct ipath_lkey_table *rkt, u32 lkey);
|
|
|
|
int ipath_lkey_ok(struct ipath_qp *qp, struct ipath_sge *isge,
|
|
struct ib_sge *sge, int acc);
|
|
|
|
int ipath_rkey_ok(struct ipath_qp *qp, struct ipath_sge_state *ss,
|
|
u32 len, u64 vaddr, u32 rkey, int acc);
|
|
|
|
int ipath_post_srq_receive(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
|
|
struct ib_recv_wr **bad_wr);
|
|
|
|
struct ib_srq *ipath_create_srq(struct ib_pd *ibpd,
|
|
struct ib_srq_init_attr *srq_init_attr,
|
|
struct ib_udata *udata);
|
|
|
|
int ipath_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
|
|
enum ib_srq_attr_mask attr_mask,
|
|
struct ib_udata *udata);
|
|
|
|
int ipath_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr);
|
|
|
|
int ipath_destroy_srq(struct ib_srq *ibsrq);
|
|
|
|
void ipath_cq_enter(struct ipath_cq *cq, struct ib_wc *entry, int sig);
|
|
|
|
int ipath_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry);
|
|
|
|
struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, int comp_vector,
|
|
struct ib_ucontext *context,
|
|
struct ib_udata *udata);
|
|
|
|
int ipath_destroy_cq(struct ib_cq *ibcq);
|
|
|
|
int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags);
|
|
|
|
int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata);
|
|
|
|
struct ib_mr *ipath_get_dma_mr(struct ib_pd *pd, int acc);
|
|
|
|
struct ib_mr *ipath_reg_phys_mr(struct ib_pd *pd,
|
|
struct ib_phys_buf *buffer_list,
|
|
int num_phys_buf, int acc, u64 *iova_start);
|
|
|
|
struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
|
|
u64 virt_addr, int mr_access_flags,
|
|
struct ib_udata *udata);
|
|
|
|
int ipath_dereg_mr(struct ib_mr *ibmr);
|
|
|
|
struct ib_fmr *ipath_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
|
|
struct ib_fmr_attr *fmr_attr);
|
|
|
|
int ipath_map_phys_fmr(struct ib_fmr *ibfmr, u64 * page_list,
|
|
int list_len, u64 iova);
|
|
|
|
int ipath_unmap_fmr(struct list_head *fmr_list);
|
|
|
|
int ipath_dealloc_fmr(struct ib_fmr *ibfmr);
|
|
|
|
void ipath_release_mmap_info(struct kref *ref);
|
|
|
|
struct ipath_mmap_info *ipath_create_mmap_info(struct ipath_ibdev *dev,
|
|
u32 size,
|
|
struct ib_ucontext *context,
|
|
void *obj);
|
|
|
|
void ipath_update_mmap_info(struct ipath_ibdev *dev,
|
|
struct ipath_mmap_info *ip,
|
|
u32 size, void *obj);
|
|
|
|
int ipath_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
|
|
|
|
void ipath_insert_rnr_queue(struct ipath_qp *qp);
|
|
|
|
int ipath_init_sge(struct ipath_qp *qp, struct ipath_rwqe *wqe,
|
|
u32 *lengthp, struct ipath_sge_state *ss);
|
|
|
|
int ipath_get_rwqe(struct ipath_qp *qp, int wr_id_only);
|
|
|
|
u32 ipath_make_grh(struct ipath_ibdev *dev, struct ib_grh *hdr,
|
|
struct ib_global_route *grh, u32 hwords, u32 nwords);
|
|
|
|
void ipath_make_ruc_header(struct ipath_ibdev *dev, struct ipath_qp *qp,
|
|
struct ipath_other_headers *ohdr,
|
|
u32 bth0, u32 bth2);
|
|
|
|
void ipath_do_send(unsigned long data);
|
|
|
|
void ipath_send_complete(struct ipath_qp *qp, struct ipath_swqe *wqe,
|
|
enum ib_wc_status status);
|
|
|
|
int ipath_make_rc_req(struct ipath_qp *qp);
|
|
|
|
int ipath_make_uc_req(struct ipath_qp *qp);
|
|
|
|
int ipath_make_ud_req(struct ipath_qp *qp);
|
|
|
|
int ipath_register_ib_device(struct ipath_devdata *);
|
|
|
|
void ipath_unregister_ib_device(struct ipath_ibdev *);
|
|
|
|
void ipath_ib_rcv(struct ipath_ibdev *, void *, void *, u32);
|
|
|
|
int ipath_ib_piobufavail(struct ipath_ibdev *);
|
|
|
|
unsigned ipath_get_npkeys(struct ipath_devdata *);
|
|
|
|
u32 ipath_get_cr_errpkey(struct ipath_devdata *);
|
|
|
|
unsigned ipath_get_pkey(struct ipath_devdata *, unsigned);
|
|
|
|
extern const enum ib_wc_opcode ib_ipath_wc_opcode[];
|
|
|
|
/*
|
|
* Below converts HCA-specific LinkTrainingState to IB PhysPortState
|
|
* values.
|
|
*/
|
|
extern const u8 ipath_cvt_physportstate[];
|
|
#define IB_PHYSPORTSTATE_SLEEP 1
|
|
#define IB_PHYSPORTSTATE_POLL 2
|
|
#define IB_PHYSPORTSTATE_DISABLED 3
|
|
#define IB_PHYSPORTSTATE_CFG_TRAIN 4
|
|
#define IB_PHYSPORTSTATE_LINKUP 5
|
|
#define IB_PHYSPORTSTATE_LINK_ERR_RECOVER 6
|
|
|
|
extern const int ib_ipath_state_ops[];
|
|
|
|
extern unsigned int ib_ipath_lkey_table_size;
|
|
|
|
extern unsigned int ib_ipath_max_cqes;
|
|
|
|
extern unsigned int ib_ipath_max_cqs;
|
|
|
|
extern unsigned int ib_ipath_max_qp_wrs;
|
|
|
|
extern unsigned int ib_ipath_max_qps;
|
|
|
|
extern unsigned int ib_ipath_max_sges;
|
|
|
|
extern unsigned int ib_ipath_max_mcast_grps;
|
|
|
|
extern unsigned int ib_ipath_max_mcast_qp_attached;
|
|
|
|
extern unsigned int ib_ipath_max_srqs;
|
|
|
|
extern unsigned int ib_ipath_max_srq_sges;
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extern unsigned int ib_ipath_max_srq_wrs;
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extern const u32 ib_ipath_rnr_table[];
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extern struct ib_dma_mapping_ops ipath_dma_mapping_ops;
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#endif /* IPATH_VERBS_H */
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