11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2004 Infinicon Corporation. All rights reserved. 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2004 Intel Corporation. All rights reserved. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2004 Topspin Corporation. All rights reserved. 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2004 Voltaire Corporation. All rights reserved. 72a1d9b7f09aaaacf235656cb32a40ba2c79590b3Roland Dreier * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 833b9b3ee9709b19c4f02ab91571d53540d05c3d1Roland Dreier * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This software is available to you under a choice of one of two 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * licenses. You may choose to be licensed under the terms of the GNU 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * General Public License (GPL) Version 2, available from the file 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * COPYING in the main directory of this source tree, or the 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * OpenIB.org BSD license below: 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Redistribution and use in source and binary forms, with or 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * without modification, are permitted provided that the following 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * conditions are met: 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - Redistributions of source code must retain the above 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * copyright notice, this list of conditions and the following 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * disclaimer. 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - Redistributions in binary form must reproduce the above 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * copyright notice, this list of conditions and the following 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * disclaimer in the documentation and/or other materials 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * provided with the distribution. 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * SOFTWARE. 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/err.h> 41b108d9764cff25262bf764542ed1998d3e568962Paul Gortmaker#include <linux/export.h> 428c65b4a60450590e79a28e9717ceffa9e4debb3fTim Schmielau#include <linux/string.h> 430e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty#include <linux/slab.h> 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 45a4d61e84804f3b14cc35c5e2af768a07c0f64ef6Roland Dreier#include <rdma/ib_verbs.h> 46a4d61e84804f3b14cc35c5e2af768a07c0f64ef6Roland Dreier#include <rdma/ib_cache.h> 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 48bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgensteinint ib_rate_to_mult(enum ib_rate rate) 49bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein{ 50bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein switch (rate) { 51bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_2_5_GBPS: return 1; 52bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_5_GBPS: return 2; 53bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_10_GBPS: return 4; 54bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_20_GBPS: return 8; 55bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_30_GBPS: return 12; 56bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_40_GBPS: return 16; 57bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_60_GBPS: return 24; 58bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_80_GBPS: return 32; 59bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_120_GBPS: return 48; 60bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein default: return -1; 61bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein } 62bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein} 63bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack MorgensteinEXPORT_SYMBOL(ib_rate_to_mult); 64bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein 65bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgensteinenum ib_rate mult_to_ib_rate(int mult) 66bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein{ 67bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein switch (mult) { 68bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 1: return IB_RATE_2_5_GBPS; 69bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 2: return IB_RATE_5_GBPS; 70bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 4: return IB_RATE_10_GBPS; 71bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 8: return IB_RATE_20_GBPS; 72bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 12: return IB_RATE_30_GBPS; 73bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 16: return IB_RATE_40_GBPS; 74bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 24: return IB_RATE_60_GBPS; 75bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 32: return IB_RATE_80_GBPS; 76bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 48: return IB_RATE_120_GBPS; 77bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein default: return IB_RATE_PORT_CURRENT; 78bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein } 79bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein} 80bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack MorgensteinEXPORT_SYMBOL(mult_to_ib_rate); 81bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein 8271eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaumint ib_rate_to_mbps(enum ib_rate rate) 8371eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum{ 8471eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum switch (rate) { 8571eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_2_5_GBPS: return 2500; 8671eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_5_GBPS: return 5000; 8771eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_10_GBPS: return 10000; 8871eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_20_GBPS: return 20000; 8971eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_30_GBPS: return 30000; 9071eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_40_GBPS: return 40000; 9171eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_60_GBPS: return 60000; 9271eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_80_GBPS: return 80000; 9371eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_120_GBPS: return 120000; 9471eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_14_GBPS: return 14062; 9571eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_56_GBPS: return 56250; 9671eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_112_GBPS: return 112500; 9771eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_168_GBPS: return 168750; 9871eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_25_GBPS: return 25781; 9971eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_100_GBPS: return 103125; 10071eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_200_GBPS: return 206250; 10171eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum case IB_RATE_300_GBPS: return 309375; 10271eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum default: return -1; 10371eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum } 10471eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum} 10571eeba161d7611238ecb6f525a82325aa35339f0Marcel ApfelbaumEXPORT_SYMBOL(ib_rate_to_mbps); 10671eeba161d7611238ecb6f525a82325aa35339f0Marcel Apfelbaum 10707ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tuckerenum rdma_transport_type 10807ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tuckerrdma_node_get_transport(enum rdma_node_type node_type) 10907ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker{ 11007ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker switch (node_type) { 11107ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_IB_CA: 11207ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_IB_SWITCH: 11307ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_IB_ROUTER: 11407ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker return RDMA_TRANSPORT_IB; 11507ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_RNIC: 11607ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker return RDMA_TRANSPORT_IWARP; 11707ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker default: 11807ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker BUG(); 11907ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker return 0; 12007ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker } 12107ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker} 12207ebafbaaa72aa6a35472879008f5a1d1d469a0cTom TuckerEXPORT_SYMBOL(rdma_node_get_transport); 12307ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker 124a3f5adaf491490089215f863a61b9422fae902f8Eli Cohenenum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_num) 125a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen{ 126a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen if (device->get_link_layer) 127a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen return device->get_link_layer(device, port_num); 128a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen 129a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen switch (rdma_node_get_transport(device->node_type)) { 130a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen case RDMA_TRANSPORT_IB: 131a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen return IB_LINK_LAYER_INFINIBAND; 132a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen case RDMA_TRANSPORT_IWARP: 133a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen return IB_LINK_LAYER_ETHERNET; 134a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen default: 135a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen return IB_LINK_LAYER_UNSPECIFIED; 136a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen } 137a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen} 138a3f5adaf491490089215f863a61b9422fae902f8Eli CohenEXPORT_SYMBOL(rdma_port_get_link_layer); 139a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Protection domains */ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_pd *ib_alloc_pd(struct ib_device *device) 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 146b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier pd = device->alloc_pd(device, NULL, NULL); 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(pd)) { 149b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier pd->device = device; 150b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier pd->uobject = NULL; 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&pd->usecnt, 0); 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return pd; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_pd); 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_pd(struct ib_pd *pd) 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&pd->usecnt)) 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return pd->device->dealloc_pd(pd); 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_pd); 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Address handles */ 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_ah *ah; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ah = pd->device->create_ah(pd, ah_attr); 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(ah)) { 176b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier ah->device = pd->device; 177b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier ah->pd = pd; 178b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier ah->uobject = NULL; 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ah; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_ah); 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1864e00d69454a8747798de11dc4eeef1edeee5ce98Sean Heftyint ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc, 1874e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty struct ib_grh *grh, struct ib_ah_attr *ah_attr) 188513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock{ 189513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock u32 flow_class; 190513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock u16 gid_index; 191513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock int ret; 192513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 1934e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty memset(ah_attr, 0, sizeof *ah_attr); 1944e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->dlid = wc->slid; 1954e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->sl = wc->sl; 1964e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->src_path_bits = wc->dlid_path_bits; 1974e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->port_num = port_num; 198513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 199513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock if (wc->wc_flags & IB_WC_GRH) { 2004e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->ah_flags = IB_AH_GRH; 2014e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.dgid = grh->sgid; 202513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 2034e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ret = ib_find_cached_gid(device, &grh->dgid, &port_num, 204513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock &gid_index); 205513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock if (ret) 2064e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty return ret; 207513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 2084e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.sgid_index = (u8) gid_index; 209497677ab940e637a41351dca6610bc4320abc8f1Hal Rosenstock flow_class = be32_to_cpu(grh->version_tclass_flow); 2104e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.flow_label = flow_class & 0xFFFFF; 21147645d8d25387c08bb3ccd84e1405c3776f21d24Sean Hefty ah_attr->grh.hop_limit = 0xFF; 2124e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.traffic_class = (flow_class >> 20) & 0xFF; 213513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock } 2144e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty return 0; 2154e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty} 2164e00d69454a8747798de11dc4eeef1edeee5ce98Sean HeftyEXPORT_SYMBOL(ib_init_ah_from_wc); 2174e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty 2184e00d69454a8747798de11dc4eeef1edeee5ce98Sean Heftystruct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc, 2194e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty struct ib_grh *grh, u8 port_num) 2204e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty{ 2214e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty struct ib_ah_attr ah_attr; 2224e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty int ret; 2234e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty 2244e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ret = ib_init_ah_from_wc(pd->device, port_num, wc, grh, &ah_attr); 2254e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty if (ret) 2264e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty return ERR_PTR(ret); 227513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 228513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock return ib_create_ah(pd, &ah_attr); 229513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock} 230513789ed995fb2ba72ba2a5bee53ea11d1170580Hal RosenstockEXPORT_SYMBOL(ib_create_ah_from_wc); 231513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr) 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ah->device->modify_ah ? 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ah->device->modify_ah(ah, ah_attr) : 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds -ENOSYS; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_modify_ah); 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr) 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ah->device->query_ah ? 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ah->device->query_ah(ah, ah_attr) : 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds -ENOSYS; 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_ah); 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_ah(struct ib_ah *ah) 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = ah->pd; 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = ah->device->destroy_ah(ah); 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_ah); 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 262d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier/* Shared receive queues */ 263d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 264d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierstruct ib_srq *ib_create_srq(struct ib_pd *pd, 265d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq_init_attr *srq_init_attr) 266d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 267d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq *srq; 268d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 269d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (!pd->device->create_srq) 270d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return ERR_PTR(-ENOSYS); 271d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 272d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq = pd->device->create_srq(pd, srq_init_attr, NULL); 273d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 274d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (!IS_ERR(srq)) { 275d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->device = pd->device; 276d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->pd = pd; 277d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->uobject = NULL; 278d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->event_handler = srq_init_attr->event_handler; 279d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->srq_context = srq_init_attr->srq_context; 28096104eda01695a26da2c8f7423ec0ba3509c8c97Sean Hefty srq->srq_type = srq_init_attr->srq_type; 281418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty if (srq->srq_type == IB_SRQT_XRC) { 282418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty srq->ext.xrc.xrcd = srq_init_attr->ext.xrc.xrcd; 283418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty srq->ext.xrc.cq = srq_init_attr->ext.xrc.cq; 284418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty atomic_inc(&srq->ext.xrc.xrcd->usecnt); 285418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty atomic_inc(&srq->ext.xrc.cq->usecnt); 286418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty } 287d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier atomic_inc(&pd->usecnt); 288d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier atomic_set(&srq->usecnt, 0); 289d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier } 290d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 291d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return srq; 292d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 293d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_create_srq); 294d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 295d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierint ib_modify_srq(struct ib_srq *srq, 296d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq_attr *srq_attr, 297d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier enum ib_srq_attr_mask srq_attr_mask) 298d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 2997ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak return srq->device->modify_srq ? 3007ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL) : 3017ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak -ENOSYS; 302d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 303d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_modify_srq); 304d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 305d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierint ib_query_srq(struct ib_srq *srq, 306d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq_attr *srq_attr) 307d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 308d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return srq->device->query_srq ? 309d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->device->query_srq(srq, srq_attr) : -ENOSYS; 310d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 311d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_query_srq); 312d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 313d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierint ib_destroy_srq(struct ib_srq *srq) 314d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 315d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_pd *pd; 316418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty enum ib_srq_type srq_type; 317418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty struct ib_xrcd *uninitialized_var(xrcd); 318418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty struct ib_cq *uninitialized_var(cq); 319d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier int ret; 320d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 321d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (atomic_read(&srq->usecnt)) 322d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return -EBUSY; 323d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 324d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier pd = srq->pd; 325418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty srq_type = srq->srq_type; 326418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty if (srq_type == IB_SRQT_XRC) { 327418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty xrcd = srq->ext.xrc.xrcd; 328418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty cq = srq->ext.xrc.cq; 329418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty } 330d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 331d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier ret = srq->device->destroy_srq(srq); 332418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty if (!ret) { 333d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier atomic_dec(&pd->usecnt); 334418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty if (srq_type == IB_SRQT_XRC) { 335418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty atomic_dec(&xrcd->usecnt); 336418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty atomic_dec(&cq->usecnt); 337418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty } 338418d51307d102e72e745031adb4f5ba0ddb646e2Sean Hefty } 339d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 340d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return ret; 341d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 342d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_destroy_srq); 343d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Queue pairs */ 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3460e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Heftystatic void __ib_shared_qp_event_handler(struct ib_event *event, void *context) 3470e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty{ 3480e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *qp = context; 3490e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3500e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty list_for_each_entry(event->element.qp, &qp->open_list, open_list) 3510e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty event->element.qp->event_handler(event, event->element.qp->qp_context); 3520e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty} 3530e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 354d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Heftystatic void __ib_insert_xrcd_qp(struct ib_xrcd *xrcd, struct ib_qp *qp) 355d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty{ 356d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty mutex_lock(&xrcd->tgt_qp_mutex); 357d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty list_add(&qp->xrcd_list, &xrcd->tgt_qp_list); 358d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty mutex_unlock(&xrcd->tgt_qp_mutex); 359d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty} 360d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty 3610e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Heftystatic struct ib_qp *__ib_open_qp(struct ib_qp *real_qp, 3620e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty void (*event_handler)(struct ib_event *, void *), 3630e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty void *qp_context) 364d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty{ 3650e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *qp; 3660e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty unsigned long flags; 3670e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3680e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp = kzalloc(sizeof *qp, GFP_KERNEL); 3690e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (!qp) 3700e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return ERR_PTR(-ENOMEM); 3710e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3720e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->real_qp = real_qp; 3730e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty atomic_inc(&real_qp->usecnt); 3740e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->device = real_qp->device; 3750e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->event_handler = event_handler; 3760e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_context = qp_context; 3770e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_num = real_qp->qp_num; 3780e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_type = real_qp->qp_type; 3790e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3800e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty spin_lock_irqsave(&real_qp->device->event_handler_lock, flags); 3810e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty list_add(&qp->open_list, &real_qp->open_list); 3820e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags); 3830e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3840e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return qp; 3850e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty} 3860e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3870e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Heftystruct ib_qp *ib_open_qp(struct ib_xrcd *xrcd, 3880e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp_open_attr *qp_open_attr) 3890e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty{ 3900e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *qp, *real_qp; 3910e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3920e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (qp_open_attr->qp_type != IB_QPT_XRC_TGT) 3930e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return ERR_PTR(-EINVAL); 3940e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3950e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp = ERR_PTR(-EINVAL); 396d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty mutex_lock(&xrcd->tgt_qp_mutex); 3970e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty list_for_each_entry(real_qp, &xrcd->tgt_qp_list, xrcd_list) { 3980e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (real_qp->qp_num == qp_open_attr->qp_num) { 3990e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp = __ib_open_qp(real_qp, qp_open_attr->event_handler, 4000e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp_open_attr->qp_context); 4010e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty break; 4020e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty } 4030e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty } 404d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty mutex_unlock(&xrcd->tgt_qp_mutex); 4050e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return qp; 406d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty} 4070e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean HeftyEXPORT_SYMBOL(ib_open_qp); 408d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_qp *ib_create_qp(struct ib_pd *pd, 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_init_attr *qp_init_attr) 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4120e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *qp, *real_qp; 413b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty struct ib_device *device; 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 415b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty device = pd ? pd->device : qp_init_attr->xrcd->device; 416b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp = device->create_qp(pd, qp_init_attr, NULL); 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(qp)) { 4190e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->device = device; 4200e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->real_qp = qp; 4210e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->uobject = NULL; 4220e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_type = qp_init_attr->qp_type; 423b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty 424e47e321a35c741ee41b67976f8c6a3a7a42bc5c0Bernd Schubert atomic_set(&qp->usecnt, 0); 425b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (qp_init_attr->qp_type == IB_QPT_XRC_TGT) { 4260e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->event_handler = __ib_shared_qp_event_handler; 4270e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_context = qp; 428b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->pd = NULL; 429b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->send_cq = qp->recv_cq = NULL; 430b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->srq = NULL; 431b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->xrcd = qp_init_attr->xrcd; 432b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_inc(&qp_init_attr->xrcd->usecnt); 4330e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty INIT_LIST_HEAD(&qp->open_list); 4340e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 4350e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty real_qp = qp; 4360e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp = __ib_open_qp(real_qp, qp_init_attr->event_handler, 4370e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp_init_attr->qp_context); 4380e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (!IS_ERR(qp)) 4390e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty __ib_insert_xrcd_qp(qp_init_attr->xrcd, real_qp); 4400e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty else 4410e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty real_qp->device->destroy_qp(real_qp); 442b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty } else { 4430e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->event_handler = qp_init_attr->event_handler; 4440e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_context = qp_init_attr->qp_context; 445b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (qp_init_attr->qp_type == IB_QPT_XRC_INI) { 446b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->recv_cq = NULL; 447b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->srq = NULL; 448b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty } else { 449b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->recv_cq = qp_init_attr->recv_cq; 450b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_inc(&qp_init_attr->recv_cq->usecnt); 451b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->srq = qp_init_attr->srq; 452b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (qp->srq) 453b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_inc(&qp_init_attr->srq->usecnt); 454b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty } 455b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty 456b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->pd = pd; 457b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->send_cq = qp_init_attr->send_cq; 458b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->xrcd = NULL; 459b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty 460b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_inc(&pd->usecnt); 461b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_inc(&qp_init_attr->send_cq->usecnt); 462b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty } 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return qp; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_qp); 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreierstatic const struct { 4708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier int valid; 471b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty enum ib_qp_attr_mask req_param[IB_QPT_MAX]; 472b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty enum ib_qp_attr_mask opt_param[IB_QPT_MAX]; 4738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier} qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = { 4748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { 4758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 4768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 4778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 4798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 4808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 4818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_PKEY_INDEX | 4838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 4848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 4858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PKEY_INDEX | 4868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 4878a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 488b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_PKEY_INDEX | 489b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PORT | 490b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS), 491b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_PKEY_INDEX | 492b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PORT | 493b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS), 4948a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 4958a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 4978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 5028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 5038a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 5048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 5058a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 5068a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 5078a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 5088a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 5098a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5108a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_PKEY_INDEX | 5118a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 5128a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 5138a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PKEY_INDEX | 5148a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 5158a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 516b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_PKEY_INDEX | 517b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PORT | 518b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS), 519b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_PKEY_INDEX | 520b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PORT | 521b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS), 5228a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 5238a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5248a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 5258a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5268a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5278a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5288a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTR] = { 5298a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 5308a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 5318a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_AV | 5328a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MTU | 5338a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_DEST_QPN | 5348a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RQ_PSN), 5358a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_AV | 5368a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MTU | 5378a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_DEST_QPN | 5388a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RQ_PSN | 5398a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_DEST_RD_ATOMIC | 5408a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER), 541b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_AV | 542b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MTU | 543b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_DEST_QPN | 544b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RQ_PSN), 545b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_AV | 546b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MTU | 547b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_DEST_QPN | 548b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RQ_PSN | 549b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MAX_DEST_RD_ATOMIC | 550b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MIN_RNR_TIMER), 5518a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5528a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 5538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 5548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_ALT_PATH | 5568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 5578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX), 5588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_ALT_PATH | 5598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 5608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX), 561b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_ALT_PATH | 562b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 563b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PKEY_INDEX), 564b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_ALT_PATH | 565b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 566b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PKEY_INDEX), 5678a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 5688a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 5708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTR] = { 5758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 5768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 5778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 5788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 5798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 5808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = IB_QP_SQ_PSN, 5818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = IB_QP_SQ_PSN, 5828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_TIMEOUT | 5838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RETRY_CNT | 5848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RNR_RETRY | 5858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_SQ_PSN | 5868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_QP_RD_ATOMIC), 587b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_TIMEOUT | 588b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RETRY_CNT | 589b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RNR_RETRY | 590b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_SQ_PSN | 591b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MAX_QP_RD_ATOMIC), 592b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_TIMEOUT | 593b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_SQ_PSN), 5948a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = IB_QP_SQ_PSN, 5958a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = IB_QP_SQ_PSN, 5968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 5988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 5998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 6018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 6038a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 6048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_CUR_STATE | 6058a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6068a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 6078a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 6088a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 609b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE | 610b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 611b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 612b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 613b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE | 614b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 615b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 616b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MIN_RNR_TIMER | 617b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 6188a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 6198a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6208a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 6218a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6228a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 6238a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 6248a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 6258a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 6268a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 6278a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 6288a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 6298a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 6308a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 6318a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 6328a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6334546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak [IB_QPT_UC] = (IB_QP_CUR_STATE | 6344546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak IB_QP_ACCESS_FLAGS | 6358a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6368a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 6374546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak [IB_QPT_RC] = (IB_QP_CUR_STATE | 6384546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak IB_QP_ACCESS_FLAGS | 6398a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6408a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE | 6418a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER), 642b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE | 643b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 644b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 645b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 646b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE | 647b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 648b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 649b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE | 650b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MIN_RNR_TIMER), 6518a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 6528a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 6548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 6568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 6578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 6588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 6598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 6608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = IB_QP_EN_SQD_ASYNC_NOTIFY, 6618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = IB_QP_EN_SQD_ASYNC_NOTIFY, 6628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = IB_QP_EN_SQD_ASYNC_NOTIFY, 663b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = IB_QP_EN_SQD_ASYNC_NOTIFY, 664b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = IB_QP_EN_SQD_ASYNC_NOTIFY, /* ??? */ 6658a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = IB_QP_EN_SQD_ASYNC_NOTIFY, 6668a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = IB_QP_EN_SQD_ASYNC_NOTIFY 6678a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 6688a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 6698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 6708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 6718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 6728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 6738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 6748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 6758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 6768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 6778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 6798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 6818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 6828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_CUR_STATE | 6838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 6858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 6868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 687b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE | 688b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 689b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 690b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 691b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE | 692b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 693b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 694b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MIN_RNR_TIMER | 695b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 6968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 6978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 6998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 7028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 7038a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 7048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 7058a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 7068a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7078a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_AV | 7088a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 7098a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 7108a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX | 7118a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 7128a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PORT | 7138a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_AV | 7148a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_TIMEOUT | 7158a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RETRY_CNT | 7168a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RNR_RETRY | 7178a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_QP_RD_ATOMIC | 7188a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_DEST_RD_ATOMIC | 7198a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 7208a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 7218a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX | 7228a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 7238a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 724b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_PORT | 725b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_AV | 726b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_TIMEOUT | 727b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RETRY_CNT | 728b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RNR_RETRY | 729b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MAX_QP_RD_ATOMIC | 730b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 731b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 732b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PKEY_INDEX | 733b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 734b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_PORT | 735b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_AV | 736b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_TIMEOUT | 737b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MAX_DEST_RD_ATOMIC | 738b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 739b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 740b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PKEY_INDEX | 741b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MIN_RNR_TIMER | 742b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 7438a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 7448a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7458a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 7468a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7478a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7488a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7498a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 7508a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQE] = { 7518a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 7528a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 7538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 7548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 7558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 7568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 7578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 7598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 7608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 7618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 7638a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7648a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7658a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7668a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 7678a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { 7688a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 7698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 } 7708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier}; 7728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreierint ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, 7748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier enum ib_qp_type type, enum ib_qp_attr_mask mask) 7758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier{ 7768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier enum ib_qp_attr_mask req_param, opt_param; 7778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (cur_state < 0 || cur_state > IB_QPS_ERR || 7798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier next_state < 0 || next_state > IB_QPS_ERR) 7808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 7818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (mask & IB_QP_CUR_STATE && 7838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier cur_state != IB_QPS_RTR && cur_state != IB_QPS_RTS && 7848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier cur_state != IB_QPS_SQD && cur_state != IB_QPS_SQE) 7858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 7868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7878a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (!qp_state_table[cur_state][next_state].valid) 7888a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 7898a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7908a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier req_param = qp_state_table[cur_state][next_state].req_param[type]; 7918a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier opt_param = qp_state_table[cur_state][next_state].opt_param[type]; 7928a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7938a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if ((mask & req_param) != req_param) 7948a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 7958a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (mask & ~(req_param | opt_param | IB_QP_STATE)) 7978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 7988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 1; 8008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier} 8018a51866f08103ba04894ce0f65eef567ddc3ed40Roland DreierEXPORT_SYMBOL(ib_modify_qp_is_ok); 8028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_modify_qp(struct ib_qp *qp, 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_attr *qp_attr, 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int qp_attr_mask) 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8070e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return qp->device->modify_qp(qp->real_qp, qp_attr, qp_attr_mask, NULL); 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_modify_qp); 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_qp(struct ib_qp *qp, 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_attr *qp_attr, 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int qp_attr_mask, 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_init_attr *qp_init_attr) 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return qp->device->query_qp ? 8170e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->device->query_qp(qp->real_qp, qp_attr, qp_attr_mask, qp_init_attr) : 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds -ENOSYS; 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_qp); 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8220e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Heftyint ib_close_qp(struct ib_qp *qp) 8230e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty{ 8240e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *real_qp; 8250e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty unsigned long flags; 8260e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8270e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty real_qp = qp->real_qp; 8280e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (real_qp == qp) 8290e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return -EINVAL; 8300e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8310e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty spin_lock_irqsave(&real_qp->device->event_handler_lock, flags); 8320e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty list_del(&qp->open_list); 8330e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags); 8340e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8350e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty atomic_dec(&real_qp->usecnt); 8360e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty kfree(qp); 8370e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8380e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return 0; 8390e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty} 8400e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean HeftyEXPORT_SYMBOL(ib_close_qp); 8410e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8420e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Heftystatic int __ib_destroy_shared_qp(struct ib_qp *qp) 8430e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty{ 8440e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_xrcd *xrcd; 8450e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *real_qp; 8460e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty int ret; 8470e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8480e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty real_qp = qp->real_qp; 8490e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty xrcd = real_qp->xrcd; 8500e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8510e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty mutex_lock(&xrcd->tgt_qp_mutex); 8520e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty ib_close_qp(qp); 8530e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (atomic_read(&real_qp->usecnt) == 0) 8540e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty list_del(&real_qp->xrcd_list); 8550e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty else 8560e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty real_qp = NULL; 8570e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty mutex_unlock(&xrcd->tgt_qp_mutex); 8580e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8590e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (real_qp) { 8600e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty ret = ib_destroy_qp(real_qp); 8610e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (!ret) 8620e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty atomic_dec(&xrcd->usecnt); 8630e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty else 8640e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty __ib_insert_xrcd_qp(xrcd, real_qp); 8650e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty } 8660e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8670e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return 0; 8680e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty} 8690e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_qp(struct ib_qp *qp) 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_cq *scq, *rcq; 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_srq *srq; 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8770e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (atomic_read(&qp->usecnt)) 8780e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return -EBUSY; 8790e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8800e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (qp->real_qp != qp) 8810e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return __ib_destroy_shared_qp(qp); 8820e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 883b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty pd = qp->pd; 884b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty scq = qp->send_cq; 885b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty rcq = qp->recv_cq; 886b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty srq = qp->srq; 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = qp->device->destroy_qp(qp); 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) { 890b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (pd) 891b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_dec(&pd->usecnt); 892b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (scq) 893b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_dec(&scq->usecnt); 894b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (rcq) 895b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_dec(&rcq->usecnt); 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (srq) 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&srq->usecnt); 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_qp); 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Completion queues */ 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_cq *ib_create_cq(struct ib_device *device, 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ib_comp_handler comp_handler, 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void (*event_handler)(struct ib_event *, void *), 909f4fd0b224d60044d2da5ca02f8f2b5150c1d8731Michael S. Tsirkin void *cq_context, int cqe, int comp_vector) 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_cq *cq; 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 913f4fd0b224d60044d2da5ca02f8f2b5150c1d8731Michael S. Tsirkin cq = device->create_cq(device, cqe, comp_vector, NULL, NULL); 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(cq)) { 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->device = device; 917b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier cq->uobject = NULL; 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->comp_handler = comp_handler; 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->event_handler = event_handler; 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->cq_context = cq_context; 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&cq->usecnt, 0); 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cq; 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_cq); 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9282dd5716227878d5950988514a2cbabf72f7fc888Eli Cohenint ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period) 9292dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen{ 9302dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen return cq->device->modify_cq ? 9312dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen cq->device->modify_cq(cq, cq_count, cq_period) : -ENOSYS; 9322dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen} 9332dd5716227878d5950988514a2cbabf72f7fc888Eli CohenEXPORT_SYMBOL(ib_modify_cq); 9342dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_cq(struct ib_cq *cq) 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&cq->usecnt)) 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cq->device->destroy_cq(cq); 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_cq); 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 944a74cd4af0bfa9578594acbb711a958104c93b772Roland Dreierint ib_resize_cq(struct ib_cq *cq, int cqe) 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 94640de2e548c225e3ef859e3c60de9785e37e1b5b1Roland Dreier return cq->device->resize_cq ? 94733b9b3ee9709b19c4f02ab91571d53540d05c3d1Roland Dreier cq->device->resize_cq(cq, cqe, NULL) : -ENOSYS; 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_resize_cq); 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Memory regions */ 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags) 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mr *mr; 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr = pd->device->get_dma_mr(pd, mr_access_flags); 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mr)) { 960b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->device = pd->device; 961b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->pd = pd; 962b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->uobject = NULL; 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&mr->usecnt, 0); 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr; 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_get_dma_mr); 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_phys_buf *phys_buf_array, 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num_phys_buf, 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 *iova_start) 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mr *mr; 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9797ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak if (!pd->device->reg_phys_mr) 9807ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak return ERR_PTR(-ENOSYS); 9817ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr = pd->device->reg_phys_mr(pd, phys_buf_array, num_phys_buf, 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr_access_flags, iova_start); 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mr)) { 986b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->device = pd->device; 987b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->pd = pd; 988b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->uobject = NULL; 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&mr->usecnt, 0); 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr; 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_reg_phys_mr); 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_rereg_phys_mr(struct ib_mr *mr, 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_rereg_mask, 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd, 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_phys_buf *phys_buf_array, 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num_phys_buf, 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 *iova_start) 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *old_pd; 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mr->device->rereg_phys_mr) 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOSYS; 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&mr->usecnt)) 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds old_pd = mr->pd; 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mr->device->rereg_phys_mr(mr, mr_rereg_mask, pd, 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds phys_buf_array, num_phys_buf, 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr_access_flags, iova_start); 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret && (mr_rereg_mask & IB_MR_REREG_PD)) { 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&old_pd->usecnt); 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_rereg_phys_mr); 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr->device->query_mr ? 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr->device->query_mr(mr, mr_attr) : -ENOSYS; 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_mr); 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dereg_mr(struct ib_mr *mr) 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&mr->usecnt)) 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = mr->pd; 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mr->device->dereg_mr(mr); 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dereg_mr); 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 105300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wisestruct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len) 105400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise{ 105500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise struct ib_mr *mr; 105600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 105700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!pd->device->alloc_fast_reg_mr) 105800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return ERR_PTR(-ENOSYS); 105900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 106000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr = pd->device->alloc_fast_reg_mr(pd, max_page_list_len); 106100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 106200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!IS_ERR(mr)) { 106300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr->device = pd->device; 106400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr->pd = pd; 106500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr->uobject = NULL; 106600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise atomic_inc(&pd->usecnt); 106700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise atomic_set(&mr->usecnt, 0); 106800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise } 106900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 107000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return mr; 107100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise} 107200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve WiseEXPORT_SYMBOL(ib_alloc_fast_reg_mr); 107300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 107400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wisestruct ib_fast_reg_page_list *ib_alloc_fast_reg_page_list(struct ib_device *device, 107500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise int max_page_list_len) 107600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise{ 107700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise struct ib_fast_reg_page_list *page_list; 107800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 107900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!device->alloc_fast_reg_page_list) 108000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return ERR_PTR(-ENOSYS); 108100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 108200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list = device->alloc_fast_reg_page_list(device, max_page_list_len); 108300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 108400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!IS_ERR(page_list)) { 108500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list->device = device; 108600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list->max_page_list_len = max_page_list_len; 108700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise } 108800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 108900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return page_list; 109000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise} 109100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve WiseEXPORT_SYMBOL(ib_alloc_fast_reg_page_list); 109200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 109300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wisevoid ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list) 109400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise{ 109500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list->device->free_fast_reg_page_list(page_list); 109600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise} 109700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve WiseEXPORT_SYMBOL(ib_free_fast_reg_page_list); 109800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Memory windows */ 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mw *ib_alloc_mw(struct ib_pd *pd) 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mw *mw; 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!pd->device->alloc_mw) 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ERR_PTR(-ENOSYS); 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mw = pd->device->alloc_mw(pd); 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mw)) { 1110b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->device = pd->device; 1111b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->pd = pd; 1112b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->uobject = NULL; 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mw; 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_mw); 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_mw(struct ib_mw *mw) 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = mw->pd; 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mw->device->dealloc_mw(mw); 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_mw); 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* "Fast" memory regions */ 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr_attr *fmr_attr) 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr *fmr; 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!pd->device->alloc_fmr) 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ERR_PTR(-ENOSYS); 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr = pd->device->alloc_fmr(pd, mr_access_flags, fmr_attr); 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(fmr)) { 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr->device = pd->device; 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr->pd = pd; 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fmr; 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_fmr); 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_unmap_fmr(struct list_head *fmr_list) 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr *fmr; 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (list_empty(fmr_list)) 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr = list_entry(fmr_list->next, struct ib_fmr, list); 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fmr->device->unmap_fmr(fmr_list); 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_unmap_fmr); 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_fmr(struct ib_fmr *fmr) 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = fmr->pd; 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = fmr->device->dealloc_fmr(fmr); 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_fmr); 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Multicast groups */ 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11860c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (!qp->device->attach_mcast) 11870c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -ENOSYS; 11880c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) 11890c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -EINVAL; 11900c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein 11910c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return qp->device->attach_mcast(qp, gid, lid); 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_attach_mcast); 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11970c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (!qp->device->detach_mcast) 11980c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -ENOSYS; 11990c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) 12000c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -EINVAL; 12010c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein 12020c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return qp->device->detach_mcast(qp, gid, lid); 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_detach_mcast); 120559991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 120659991f94eb32e954aa767f659eb642461e9e8b37Sean Heftystruct ib_xrcd *ib_alloc_xrcd(struct ib_device *device) 120759991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty{ 120859991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty struct ib_xrcd *xrcd; 120959991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 121059991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty if (!device->alloc_xrcd) 121159991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty return ERR_PTR(-ENOSYS); 121259991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 121359991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty xrcd = device->alloc_xrcd(device, NULL, NULL); 121459991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty if (!IS_ERR(xrcd)) { 121559991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty xrcd->device = device; 121653d0bd1e7ff2fc626321f337c609fb76ae5d12c9Sean Hefty xrcd->inode = NULL; 121759991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty atomic_set(&xrcd->usecnt, 0); 1218d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty mutex_init(&xrcd->tgt_qp_mutex); 1219d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty INIT_LIST_HEAD(&xrcd->tgt_qp_list); 122059991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty } 122159991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 122259991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty return xrcd; 122359991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty} 122459991f94eb32e954aa767f659eb642461e9e8b37Sean HeftyEXPORT_SYMBOL(ib_alloc_xrcd); 122559991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 122659991f94eb32e954aa767f659eb642461e9e8b37Sean Heftyint ib_dealloc_xrcd(struct ib_xrcd *xrcd) 122759991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty{ 1228d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty struct ib_qp *qp; 1229d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty int ret; 1230d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty 123159991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty if (atomic_read(&xrcd->usecnt)) 123259991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty return -EBUSY; 123359991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 1234d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty while (!list_empty(&xrcd->tgt_qp_list)) { 1235d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty qp = list_entry(xrcd->tgt_qp_list.next, struct ib_qp, xrcd_list); 1236d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty ret = ib_destroy_qp(qp); 1237d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty if (ret) 1238d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty return ret; 1239d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty } 1240d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty 124159991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty return xrcd->device->dealloc_xrcd(xrcd); 124259991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty} 124359991f94eb32e954aa767f659eb642461e9e8b37Sean HeftyEXPORT_SYMBOL(ib_dealloc_xrcd); 1244