verbs.c revision 319a441d1361ea703b091caf92418f8121eadfc5
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) 351eec9e29fc5e9b417649830ab76a3aa10b90d2e9fShlomo Pongratz if (event->element.qp->event_handler) 352eec9e29fc5e9b417649830ab76a3aa10b90d2e9fShlomo Pongratz event->element.qp->event_handler(event, event->element.qp->qp_context); 3530e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty} 3540e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 355d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Heftystatic void __ib_insert_xrcd_qp(struct ib_xrcd *xrcd, struct ib_qp *qp) 356d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty{ 357d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty mutex_lock(&xrcd->tgt_qp_mutex); 358d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty list_add(&qp->xrcd_list, &xrcd->tgt_qp_list); 359d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty mutex_unlock(&xrcd->tgt_qp_mutex); 360d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty} 361d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty 3620e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Heftystatic struct ib_qp *__ib_open_qp(struct ib_qp *real_qp, 3630e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty void (*event_handler)(struct ib_event *, void *), 3640e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty void *qp_context) 365d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty{ 3660e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *qp; 3670e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty unsigned long flags; 3680e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3690e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp = kzalloc(sizeof *qp, GFP_KERNEL); 3700e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (!qp) 3710e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return ERR_PTR(-ENOMEM); 3720e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3730e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->real_qp = real_qp; 3740e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty atomic_inc(&real_qp->usecnt); 3750e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->device = real_qp->device; 3760e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->event_handler = event_handler; 3770e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_context = qp_context; 3780e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_num = real_qp->qp_num; 3790e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_type = real_qp->qp_type; 3800e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3810e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty spin_lock_irqsave(&real_qp->device->event_handler_lock, flags); 3820e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty list_add(&qp->open_list, &real_qp->open_list); 3830e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags); 3840e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3850e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return qp; 3860e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty} 3870e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3880e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Heftystruct ib_qp *ib_open_qp(struct ib_xrcd *xrcd, 3890e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp_open_attr *qp_open_attr) 3900e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty{ 3910e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *qp, *real_qp; 3920e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3930e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (qp_open_attr->qp_type != IB_QPT_XRC_TGT) 3940e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return ERR_PTR(-EINVAL); 3950e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 3960e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp = ERR_PTR(-EINVAL); 397d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty mutex_lock(&xrcd->tgt_qp_mutex); 3980e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty list_for_each_entry(real_qp, &xrcd->tgt_qp_list, xrcd_list) { 3990e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (real_qp->qp_num == qp_open_attr->qp_num) { 4000e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp = __ib_open_qp(real_qp, qp_open_attr->event_handler, 4010e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp_open_attr->qp_context); 4020e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty break; 4030e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty } 4040e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty } 405d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty mutex_unlock(&xrcd->tgt_qp_mutex); 4060e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return qp; 407d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty} 4080e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean HeftyEXPORT_SYMBOL(ib_open_qp); 409d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_qp *ib_create_qp(struct ib_pd *pd, 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_init_attr *qp_init_attr) 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4130e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *qp, *real_qp; 414b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty struct ib_device *device; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 416b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty device = pd ? pd->device : qp_init_attr->xrcd->device; 417b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp = device->create_qp(pd, qp_init_attr, NULL); 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(qp)) { 4200e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->device = device; 4210e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->real_qp = qp; 4220e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->uobject = NULL; 4230e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_type = qp_init_attr->qp_type; 424b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty 425e47e321a35c741ee41b67976f8c6a3a7a42bc5c0Bernd Schubert atomic_set(&qp->usecnt, 0); 426b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (qp_init_attr->qp_type == IB_QPT_XRC_TGT) { 4270e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->event_handler = __ib_shared_qp_event_handler; 4280e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_context = qp; 429b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->pd = NULL; 430b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->send_cq = qp->recv_cq = NULL; 431b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->srq = NULL; 432b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->xrcd = qp_init_attr->xrcd; 433b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_inc(&qp_init_attr->xrcd->usecnt); 4340e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty INIT_LIST_HEAD(&qp->open_list); 4350e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 4360e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty real_qp = qp; 4370e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp = __ib_open_qp(real_qp, qp_init_attr->event_handler, 4380e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp_init_attr->qp_context); 4390e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (!IS_ERR(qp)) 4400e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty __ib_insert_xrcd_qp(qp_init_attr->xrcd, real_qp); 4410e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty else 4420e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty real_qp->device->destroy_qp(real_qp); 443b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty } else { 4440e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->event_handler = qp_init_attr->event_handler; 4450e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->qp_context = qp_init_attr->qp_context; 446b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (qp_init_attr->qp_type == IB_QPT_XRC_INI) { 447b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->recv_cq = NULL; 448b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->srq = NULL; 449b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty } else { 450b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->recv_cq = qp_init_attr->recv_cq; 451b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_inc(&qp_init_attr->recv_cq->usecnt); 452b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->srq = qp_init_attr->srq; 453b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (qp->srq) 454b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_inc(&qp_init_attr->srq->usecnt); 455b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty } 456b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty 457b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->pd = pd; 458b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->send_cq = qp_init_attr->send_cq; 459b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty qp->xrcd = NULL; 460b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty 461b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_inc(&pd->usecnt); 462b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_inc(&qp_init_attr->send_cq->usecnt); 463b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty } 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return qp; 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_qp); 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreierstatic const struct { 4718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier int valid; 472b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty enum ib_qp_attr_mask req_param[IB_QPT_MAX]; 473b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty enum ib_qp_attr_mask opt_param[IB_QPT_MAX]; 4748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier} qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = { 4758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { 4768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 4778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 4788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 4808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 4818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 4828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 483c938a616aadb621b8e26b0ac09ac13d053c7ed1cOr Gerlitz [IB_QPT_RAW_PACKET] = IB_QP_PORT, 4848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_PKEY_INDEX | 4858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 4868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 4878a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PKEY_INDEX | 4888a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 4898a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 490b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_PKEY_INDEX | 491b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PORT | 492b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS), 493b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_PKEY_INDEX | 494b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PORT | 495b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS), 4968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 4978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 4998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5038a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 5048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 5058a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 5068a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 5078a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 5088a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 5098a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 5108a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 5118a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5128a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_PKEY_INDEX | 5138a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 5148a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 5158a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PKEY_INDEX | 5168a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 5178a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 518b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_PKEY_INDEX | 519b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PORT | 520b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS), 521b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_PKEY_INDEX | 522b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PORT | 523b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS), 5248a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 5258a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5268a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 5278a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5288a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5298a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5308a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTR] = { 5318a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 5328a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 5338a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_AV | 5348a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MTU | 5358a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_DEST_QPN | 5368a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RQ_PSN), 5378a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_AV | 5388a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MTU | 5398a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_DEST_QPN | 5408a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RQ_PSN | 5418a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_DEST_RD_ATOMIC | 5428a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER), 543b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_AV | 544b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MTU | 545b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_DEST_QPN | 546b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RQ_PSN), 547b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_AV | 548b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MTU | 549b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_DEST_QPN | 550b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RQ_PSN | 551b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MAX_DEST_RD_ATOMIC | 552b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MIN_RNR_TIMER), 5538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 5558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 5568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_ALT_PATH | 5588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 5598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX), 5608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_ALT_PATH | 5618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 5628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX), 563b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_ALT_PATH | 564b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 565b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PKEY_INDEX), 566b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_ALT_PATH | 567b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 568b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PKEY_INDEX), 5698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 5708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 5728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTR] = { 5778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 5788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 5798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 5808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 5818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 5828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = IB_QP_SQ_PSN, 5838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = IB_QP_SQ_PSN, 5848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_TIMEOUT | 5858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RETRY_CNT | 5868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RNR_RETRY | 5878a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_SQ_PSN | 5888a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_QP_RD_ATOMIC), 589b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_TIMEOUT | 590b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RETRY_CNT | 591b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RNR_RETRY | 592b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_SQ_PSN | 593b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MAX_QP_RD_ATOMIC), 594b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_TIMEOUT | 595b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_SQ_PSN), 5968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = IB_QP_SQ_PSN, 5978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = IB_QP_SQ_PSN, 5988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 6008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 6018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 6038a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 6058a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 6068a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_CUR_STATE | 6078a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6088a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 6098a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 6108a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 611b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE | 612b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 613b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 614b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 615b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE | 616b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 617b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 618b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MIN_RNR_TIMER | 619b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 6208a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 6218a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6228a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 6238a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6248a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 6258a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 6268a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 6278a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 6288a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 6298a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 6308a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 6318a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 6328a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 6338a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 6348a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6354546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak [IB_QPT_UC] = (IB_QP_CUR_STATE | 6364546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak IB_QP_ACCESS_FLAGS | 6378a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6388a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 6394546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak [IB_QPT_RC] = (IB_QP_CUR_STATE | 6404546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak IB_QP_ACCESS_FLAGS | 6418a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6428a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE | 6438a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER), 644b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE | 645b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 646b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 647b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 648b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE | 649b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 650b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 651b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE | 652b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MIN_RNR_TIMER), 6538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 6548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 6568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 6588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 6598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 6608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 6618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 6628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = IB_QP_EN_SQD_ASYNC_NOTIFY, 6638a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = IB_QP_EN_SQD_ASYNC_NOTIFY, 6648a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = IB_QP_EN_SQD_ASYNC_NOTIFY, 665b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = IB_QP_EN_SQD_ASYNC_NOTIFY, 666b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = IB_QP_EN_SQD_ASYNC_NOTIFY, /* ??? */ 6678a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = IB_QP_EN_SQD_ASYNC_NOTIFY, 6688a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = IB_QP_EN_SQD_ASYNC_NOTIFY 6698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 6708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 6718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 6728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 6738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 6748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 6758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 6768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 6778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 6788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 6798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 6808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 6818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 6838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 6848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_CUR_STATE | 6858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 6868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 6878a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 6888a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 689b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE | 690b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 691b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 692b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 693b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_CUR_STATE | 694b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 695b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 696b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MIN_RNR_TIMER | 697b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 6988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 6998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 7018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7038a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 7048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 7058a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 7068a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 7078a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 7088a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7098a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_AV | 7108a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 7118a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 7128a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX | 7138a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 7148a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PORT | 7158a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_AV | 7168a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_TIMEOUT | 7178a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RETRY_CNT | 7188a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RNR_RETRY | 7198a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_QP_RD_ATOMIC | 7208a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_DEST_RD_ATOMIC | 7218a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 7228a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 7238a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX | 7248a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 7258a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 726b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_INI] = (IB_QP_PORT | 727b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_AV | 728b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_TIMEOUT | 729b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RETRY_CNT | 730b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_RNR_RETRY | 731b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MAX_QP_RD_ATOMIC | 732b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 733b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 734b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PKEY_INDEX | 735b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 736b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty [IB_QPT_XRC_TGT] = (IB_QP_PORT | 737b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_AV | 738b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_TIMEOUT | 739b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MAX_DEST_RD_ATOMIC | 740b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ALT_PATH | 741b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_ACCESS_FLAGS | 742b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PKEY_INDEX | 743b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_MIN_RNR_TIMER | 744b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty IB_QP_PATH_MIG_STATE), 7458a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 7468a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7478a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 7488a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7498a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7508a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7518a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 7528a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQE] = { 7538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 7548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 7558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 7568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 7578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 7588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 7598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 7618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 7628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 7638a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7648a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 7658a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 7668a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7678a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7688a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 7698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { 7708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 7718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 } 7728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 7738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier}; 7748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreierint ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, 7768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier enum ib_qp_type type, enum ib_qp_attr_mask mask) 7778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier{ 7788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier enum ib_qp_attr_mask req_param, opt_param; 7798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (cur_state < 0 || cur_state > IB_QPS_ERR || 7818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier next_state < 0 || next_state > IB_QPS_ERR) 7828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 7838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (mask & IB_QP_CUR_STATE && 7858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier cur_state != IB_QPS_RTR && cur_state != IB_QPS_RTS && 7868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier cur_state != IB_QPS_SQD && cur_state != IB_QPS_SQE) 7878a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 7888a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7898a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (!qp_state_table[cur_state][next_state].valid) 7908a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 7918a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7928a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier req_param = qp_state_table[cur_state][next_state].req_param[type]; 7938a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier opt_param = qp_state_table[cur_state][next_state].opt_param[type]; 7948a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7958a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if ((mask & req_param) != req_param) 7968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 7978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 7988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (mask & ~(req_param | opt_param | IB_QP_STATE)) 7998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 8008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 8018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 1; 8028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier} 8038a51866f08103ba04894ce0f65eef567ddc3ed40Roland DreierEXPORT_SYMBOL(ib_modify_qp_is_ok); 8048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_modify_qp(struct ib_qp *qp, 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_attr *qp_attr, 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int qp_attr_mask) 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8090e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return qp->device->modify_qp(qp->real_qp, qp_attr, qp_attr_mask, NULL); 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_modify_qp); 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_qp(struct ib_qp *qp, 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_attr *qp_attr, 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int qp_attr_mask, 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_init_attr *qp_init_attr) 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return qp->device->query_qp ? 8190e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty qp->device->query_qp(qp->real_qp, qp_attr, qp_attr_mask, qp_init_attr) : 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds -ENOSYS; 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_qp); 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8240e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Heftyint ib_close_qp(struct ib_qp *qp) 8250e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty{ 8260e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *real_qp; 8270e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty unsigned long flags; 8280e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8290e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty real_qp = qp->real_qp; 8300e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (real_qp == qp) 8310e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return -EINVAL; 8320e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8330e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty spin_lock_irqsave(&real_qp->device->event_handler_lock, flags); 8340e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty list_del(&qp->open_list); 8350e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags); 8360e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8370e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty atomic_dec(&real_qp->usecnt); 8380e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty kfree(qp); 8390e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8400e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return 0; 8410e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty} 8420e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean HeftyEXPORT_SYMBOL(ib_close_qp); 8430e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8440e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Heftystatic int __ib_destroy_shared_qp(struct ib_qp *qp) 8450e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty{ 8460e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_xrcd *xrcd; 8470e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty struct ib_qp *real_qp; 8480e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty int ret; 8490e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8500e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty real_qp = qp->real_qp; 8510e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty xrcd = real_qp->xrcd; 8520e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8530e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty mutex_lock(&xrcd->tgt_qp_mutex); 8540e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty ib_close_qp(qp); 8550e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (atomic_read(&real_qp->usecnt) == 0) 8560e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty list_del(&real_qp->xrcd_list); 8570e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty else 8580e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty real_qp = NULL; 8590e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty mutex_unlock(&xrcd->tgt_qp_mutex); 8600e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8610e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (real_qp) { 8620e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty ret = ib_destroy_qp(real_qp); 8630e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (!ret) 8640e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty atomic_dec(&xrcd->usecnt); 8650e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty else 8660e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty __ib_insert_xrcd_qp(xrcd, real_qp); 8670e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty } 8680e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8690e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return 0; 8700e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty} 8710e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_qp(struct ib_qp *qp) 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_cq *scq, *rcq; 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_srq *srq; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8790e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (atomic_read(&qp->usecnt)) 8800e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return -EBUSY; 8810e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 8820e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty if (qp->real_qp != qp) 8830e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty return __ib_destroy_shared_qp(qp); 8840e0ec7e0638ef48e0c661873dfcc8caccab984c6Sean Hefty 885b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty pd = qp->pd; 886b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty scq = qp->send_cq; 887b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty rcq = qp->recv_cq; 888b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty srq = qp->srq; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = qp->device->destroy_qp(qp); 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) { 892b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (pd) 893b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_dec(&pd->usecnt); 894b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (scq) 895b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_dec(&scq->usecnt); 896b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty if (rcq) 897b42b63cf0dde2af6eec462b2d6cca7d938702a28Sean Hefty atomic_dec(&rcq->usecnt); 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (srq) 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&srq->usecnt); 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_qp); 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Completion queues */ 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_cq *ib_create_cq(struct ib_device *device, 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ib_comp_handler comp_handler, 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void (*event_handler)(struct ib_event *, void *), 911f4fd0b224d60044d2da5ca02f8f2b5150c1d8731Michael S. Tsirkin void *cq_context, int cqe, int comp_vector) 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_cq *cq; 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 915f4fd0b224d60044d2da5ca02f8f2b5150c1d8731Michael S. Tsirkin cq = device->create_cq(device, cqe, comp_vector, NULL, NULL); 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(cq)) { 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->device = device; 919b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier cq->uobject = NULL; 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->comp_handler = comp_handler; 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->event_handler = event_handler; 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->cq_context = cq_context; 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&cq->usecnt, 0); 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cq; 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_cq); 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9302dd5716227878d5950988514a2cbabf72f7fc888Eli Cohenint ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period) 9312dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen{ 9322dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen return cq->device->modify_cq ? 9332dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen cq->device->modify_cq(cq, cq_count, cq_period) : -ENOSYS; 9342dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen} 9352dd5716227878d5950988514a2cbabf72f7fc888Eli CohenEXPORT_SYMBOL(ib_modify_cq); 9362dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_cq(struct ib_cq *cq) 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&cq->usecnt)) 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cq->device->destroy_cq(cq); 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_cq); 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 946a74cd4af0bfa9578594acbb711a958104c93b772Roland Dreierint ib_resize_cq(struct ib_cq *cq, int cqe) 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 94840de2e548c225e3ef859e3c60de9785e37e1b5b1Roland Dreier return cq->device->resize_cq ? 94933b9b3ee9709b19c4f02ab91571d53540d05c3d1Roland Dreier cq->device->resize_cq(cq, cqe, NULL) : -ENOSYS; 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_resize_cq); 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Memory regions */ 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags) 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mr *mr; 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr = pd->device->get_dma_mr(pd, mr_access_flags); 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mr)) { 962b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->device = pd->device; 963b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->pd = pd; 964b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->uobject = NULL; 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&mr->usecnt, 0); 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr; 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_get_dma_mr); 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_phys_buf *phys_buf_array, 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num_phys_buf, 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 *iova_start) 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mr *mr; 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9817ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak if (!pd->device->reg_phys_mr) 9827ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak return ERR_PTR(-ENOSYS); 9837ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr = pd->device->reg_phys_mr(pd, phys_buf_array, num_phys_buf, 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr_access_flags, iova_start); 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mr)) { 988b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->device = pd->device; 989b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->pd = pd; 990b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->uobject = NULL; 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&mr->usecnt, 0); 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr; 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_reg_phys_mr); 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_rereg_phys_mr(struct ib_mr *mr, 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_rereg_mask, 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd, 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_phys_buf *phys_buf_array, 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num_phys_buf, 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 *iova_start) 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *old_pd; 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mr->device->rereg_phys_mr) 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOSYS; 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&mr->usecnt)) 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds old_pd = mr->pd; 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mr->device->rereg_phys_mr(mr, mr_rereg_mask, pd, 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds phys_buf_array, num_phys_buf, 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr_access_flags, iova_start); 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret && (mr_rereg_mask & IB_MR_REREG_PD)) { 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&old_pd->usecnt); 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_rereg_phys_mr); 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr->device->query_mr ? 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr->device->query_mr(mr, mr_attr) : -ENOSYS; 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_mr); 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dereg_mr(struct ib_mr *mr) 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&mr->usecnt)) 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = mr->pd; 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mr->device->dereg_mr(mr); 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dereg_mr); 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 105500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wisestruct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len) 105600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise{ 105700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise struct ib_mr *mr; 105800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 105900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!pd->device->alloc_fast_reg_mr) 106000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return ERR_PTR(-ENOSYS); 106100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 106200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr = pd->device->alloc_fast_reg_mr(pd, max_page_list_len); 106300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 106400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!IS_ERR(mr)) { 106500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr->device = pd->device; 106600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr->pd = pd; 106700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr->uobject = NULL; 106800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise atomic_inc(&pd->usecnt); 106900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise atomic_set(&mr->usecnt, 0); 107000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise } 107100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 107200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return mr; 107300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise} 107400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve WiseEXPORT_SYMBOL(ib_alloc_fast_reg_mr); 107500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 107600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wisestruct ib_fast_reg_page_list *ib_alloc_fast_reg_page_list(struct ib_device *device, 107700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise int max_page_list_len) 107800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise{ 107900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise struct ib_fast_reg_page_list *page_list; 108000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 108100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!device->alloc_fast_reg_page_list) 108200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return ERR_PTR(-ENOSYS); 108300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 108400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list = device->alloc_fast_reg_page_list(device, max_page_list_len); 108500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 108600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!IS_ERR(page_list)) { 108700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list->device = device; 108800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list->max_page_list_len = max_page_list_len; 108900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise } 109000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 109100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return page_list; 109200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise} 109300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve WiseEXPORT_SYMBOL(ib_alloc_fast_reg_page_list); 109400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 109500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wisevoid ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list) 109600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise{ 109700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list->device->free_fast_reg_page_list(page_list); 109800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise} 109900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve WiseEXPORT_SYMBOL(ib_free_fast_reg_page_list); 110000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Memory windows */ 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11037083e42ee2ff43a11481e0e7211ec4f9ac68cb79Shani Michaelistruct ib_mw *ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type) 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mw *mw; 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!pd->device->alloc_mw) 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ERR_PTR(-ENOSYS); 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11107083e42ee2ff43a11481e0e7211ec4f9ac68cb79Shani Michaeli mw = pd->device->alloc_mw(pd, type); 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mw)) { 1112b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->device = pd->device; 1113b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->pd = pd; 1114b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->uobject = NULL; 11157083e42ee2ff43a11481e0e7211ec4f9ac68cb79Shani Michaeli mw->type = type; 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mw; 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_mw); 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_mw(struct ib_mw *mw) 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = mw->pd; 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mw->device->dealloc_mw(mw); 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_mw); 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* "Fast" memory regions */ 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr_attr *fmr_attr) 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr *fmr; 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!pd->device->alloc_fmr) 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ERR_PTR(-ENOSYS); 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr = pd->device->alloc_fmr(pd, mr_access_flags, fmr_attr); 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(fmr)) { 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr->device = pd->device; 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr->pd = pd; 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fmr; 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_fmr); 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_unmap_fmr(struct list_head *fmr_list) 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr *fmr; 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (list_empty(fmr_list)) 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr = list_entry(fmr_list->next, struct ib_fmr, list); 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fmr->device->unmap_fmr(fmr_list); 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_unmap_fmr); 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_fmr(struct ib_fmr *fmr) 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = fmr->pd; 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = fmr->device->dealloc_fmr(fmr); 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_fmr); 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Multicast groups */ 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1189c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz int ret; 1190c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz 11910c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (!qp->device->attach_mcast) 11920c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -ENOSYS; 11930c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) 11940c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -EINVAL; 11950c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein 1196c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz ret = qp->device->attach_mcast(qp, gid, lid); 1197c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz if (!ret) 1198c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz atomic_inc(&qp->usecnt); 1199c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz return ret; 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_attach_mcast); 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1205c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz int ret; 1206c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz 12070c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (!qp->device->detach_mcast) 12080c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -ENOSYS; 12090c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) 12100c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -EINVAL; 12110c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein 1212c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz ret = qp->device->detach_mcast(qp, gid, lid); 1213c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz if (!ret) 1214c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz atomic_dec(&qp->usecnt); 1215c3bccbfbb71f5e8a77129c7a069f5c5648cc9cf1Or Gerlitz return ret; 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_detach_mcast); 121859991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 121959991f94eb32e954aa767f659eb642461e9e8b37Sean Heftystruct ib_xrcd *ib_alloc_xrcd(struct ib_device *device) 122059991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty{ 122159991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty struct ib_xrcd *xrcd; 122259991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 122359991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty if (!device->alloc_xrcd) 122459991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty return ERR_PTR(-ENOSYS); 122559991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 122659991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty xrcd = device->alloc_xrcd(device, NULL, NULL); 122759991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty if (!IS_ERR(xrcd)) { 122859991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty xrcd->device = device; 122953d0bd1e7ff2fc626321f337c609fb76ae5d12c9Sean Hefty xrcd->inode = NULL; 123059991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty atomic_set(&xrcd->usecnt, 0); 1231d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty mutex_init(&xrcd->tgt_qp_mutex); 1232d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty INIT_LIST_HEAD(&xrcd->tgt_qp_list); 123359991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty } 123459991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 123559991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty return xrcd; 123659991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty} 123759991f94eb32e954aa767f659eb642461e9e8b37Sean HeftyEXPORT_SYMBOL(ib_alloc_xrcd); 123859991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 123959991f94eb32e954aa767f659eb642461e9e8b37Sean Heftyint ib_dealloc_xrcd(struct ib_xrcd *xrcd) 124059991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty{ 1241d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty struct ib_qp *qp; 1242d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty int ret; 1243d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty 124459991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty if (atomic_read(&xrcd->usecnt)) 124559991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty return -EBUSY; 124659991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty 1247d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty while (!list_empty(&xrcd->tgt_qp_list)) { 1248d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty qp = list_entry(xrcd->tgt_qp_list.next, struct ib_qp, xrcd_list); 1249d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty ret = ib_destroy_qp(qp); 1250d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty if (ret) 1251d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty return ret; 1252d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty } 1253d3d72d909e783d048ee39046aa7b4fa798a4dda8Sean Hefty 125459991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty return xrcd->device->dealloc_xrcd(xrcd); 125559991f94eb32e954aa767f659eb642461e9e8b37Sean Hefty} 125659991f94eb32e954aa767f659eb642461e9e8b37Sean HeftyEXPORT_SYMBOL(ib_dealloc_xrcd); 1257319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion 1258319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zionstruct ib_flow *ib_create_flow(struct ib_qp *qp, 1259319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion struct ib_flow_attr *flow_attr, 1260319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion int domain) 1261319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion{ 1262319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion struct ib_flow *flow_id; 1263319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion if (!qp->device->create_flow) 1264319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion return ERR_PTR(-ENOSYS); 1265319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion 1266319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion flow_id = qp->device->create_flow(qp, flow_attr, domain); 1267319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion if (!IS_ERR(flow_id)) 1268319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion atomic_inc(&qp->usecnt); 1269319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion return flow_id; 1270319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion} 1271319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen ZionEXPORT_SYMBOL(ib_create_flow); 1272319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion 1273319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zionint ib_destroy_flow(struct ib_flow *flow_id) 1274319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion{ 1275319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion int err; 1276319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion struct ib_qp *qp = flow_id->qp; 1277319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion 1278319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion err = qp->device->destroy_flow(flow_id); 1279319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion if (!err) 1280319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion atomic_dec(&qp->usecnt); 1281319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion return err; 1282319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen Zion} 1283319a441d1361ea703b091caf92418f8121eadfc5Hadar Hen ZionEXPORT_SYMBOL(ib_destroy_flow); 1284