verbs.c revision 7ce5eacb45a7c819a6bec6ed486f27db9aab6ab6
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 * $Id: verbs.c 1349 2004-12-16 21:09:43Z roland $ 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/err.h> 438c65b4a60450590e79a28e9717ceffa9e4debb3fTim Schmielau#include <linux/string.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 8207ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tuckerenum rdma_transport_type 8307ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tuckerrdma_node_get_transport(enum rdma_node_type node_type) 8407ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker{ 8507ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker switch (node_type) { 8607ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_IB_CA: 8707ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_IB_SWITCH: 8807ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_IB_ROUTER: 8907ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker return RDMA_TRANSPORT_IB; 9007ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_RNIC: 9107ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker return RDMA_TRANSPORT_IWARP; 9207ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker default: 9307ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker BUG(); 9407ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker return 0; 9507ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker } 9607ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker} 9707ebafbaaa72aa6a35472879008f5a1d1d469a0cTom TuckerEXPORT_SYMBOL(rdma_node_get_transport); 9807ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Protection domains */ 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_pd *ib_alloc_pd(struct ib_device *device) 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 105b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier pd = device->alloc_pd(device, NULL, NULL); 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(pd)) { 108b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier pd->device = device; 109b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier pd->uobject = NULL; 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&pd->usecnt, 0); 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return pd; 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_pd); 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_pd(struct ib_pd *pd) 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&pd->usecnt)) 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return pd->device->dealloc_pd(pd); 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_pd); 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Address handles */ 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_ah *ah; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ah = pd->device->create_ah(pd, ah_attr); 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(ah)) { 135b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier ah->device = pd->device; 136b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier ah->pd = pd; 137b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier ah->uobject = NULL; 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ah; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_ah); 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1454e00d69454a8747798de11dc4eeef1edeee5ce98Sean Heftyint ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc, 1464e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty struct ib_grh *grh, struct ib_ah_attr *ah_attr) 147513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock{ 148513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock u32 flow_class; 149513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock u16 gid_index; 150513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock int ret; 151513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 1524e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty memset(ah_attr, 0, sizeof *ah_attr); 1534e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->dlid = wc->slid; 1544e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->sl = wc->sl; 1554e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->src_path_bits = wc->dlid_path_bits; 1564e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->port_num = port_num; 157513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 158513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock if (wc->wc_flags & IB_WC_GRH) { 1594e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->ah_flags = IB_AH_GRH; 1604e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.dgid = grh->sgid; 161513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 1624e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ret = ib_find_cached_gid(device, &grh->dgid, &port_num, 163513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock &gid_index); 164513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock if (ret) 1654e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty return ret; 166513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 1674e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.sgid_index = (u8) gid_index; 168497677ab940e637a41351dca6610bc4320abc8f1Hal Rosenstock flow_class = be32_to_cpu(grh->version_tclass_flow); 1694e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.flow_label = flow_class & 0xFFFFF; 17047645d8d25387c08bb3ccd84e1405c3776f21d24Sean Hefty ah_attr->grh.hop_limit = 0xFF; 1714e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.traffic_class = (flow_class >> 20) & 0xFF; 172513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock } 1734e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty return 0; 1744e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty} 1754e00d69454a8747798de11dc4eeef1edeee5ce98Sean HeftyEXPORT_SYMBOL(ib_init_ah_from_wc); 1764e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty 1774e00d69454a8747798de11dc4eeef1edeee5ce98Sean Heftystruct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc, 1784e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty struct ib_grh *grh, u8 port_num) 1794e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty{ 1804e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty struct ib_ah_attr ah_attr; 1814e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty int ret; 1824e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty 1834e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ret = ib_init_ah_from_wc(pd->device, port_num, wc, grh, &ah_attr); 1844e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty if (ret) 1854e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty return ERR_PTR(ret); 186513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 187513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock return ib_create_ah(pd, &ah_attr); 188513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock} 189513789ed995fb2ba72ba2a5bee53ea11d1170580Hal RosenstockEXPORT_SYMBOL(ib_create_ah_from_wc); 190513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr) 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ah->device->modify_ah ? 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ah->device->modify_ah(ah, ah_attr) : 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds -ENOSYS; 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_modify_ah); 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr) 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ah->device->query_ah ? 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ah->device->query_ah(ah, ah_attr) : 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds -ENOSYS; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_ah); 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_ah(struct ib_ah *ah) 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = ah->pd; 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = ah->device->destroy_ah(ah); 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_ah); 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 221d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier/* Shared receive queues */ 222d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 223d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierstruct ib_srq *ib_create_srq(struct ib_pd *pd, 224d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq_init_attr *srq_init_attr) 225d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 226d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq *srq; 227d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 228d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (!pd->device->create_srq) 229d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return ERR_PTR(-ENOSYS); 230d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 231d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq = pd->device->create_srq(pd, srq_init_attr, NULL); 232d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 233d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (!IS_ERR(srq)) { 234d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->device = pd->device; 235d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->pd = pd; 236d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->uobject = NULL; 237d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->event_handler = srq_init_attr->event_handler; 238d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->srq_context = srq_init_attr->srq_context; 239d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier atomic_inc(&pd->usecnt); 240d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier atomic_set(&srq->usecnt, 0); 241d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier } 242d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 243d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return srq; 244d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 245d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_create_srq); 246d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 247d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierint ib_modify_srq(struct ib_srq *srq, 248d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq_attr *srq_attr, 249d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier enum ib_srq_attr_mask srq_attr_mask) 250d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 2517ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak return srq->device->modify_srq ? 2527ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL) : 2537ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak -ENOSYS; 254d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 255d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_modify_srq); 256d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 257d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierint ib_query_srq(struct ib_srq *srq, 258d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq_attr *srq_attr) 259d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 260d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return srq->device->query_srq ? 261d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->device->query_srq(srq, srq_attr) : -ENOSYS; 262d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 263d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_query_srq); 264d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 265d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierint ib_destroy_srq(struct ib_srq *srq) 266d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 267d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_pd *pd; 268d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier int ret; 269d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 270d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (atomic_read(&srq->usecnt)) 271d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return -EBUSY; 272d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 273d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier pd = srq->pd; 274d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 275d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier ret = srq->device->destroy_srq(srq); 276d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (!ret) 277d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier atomic_dec(&pd->usecnt); 278d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 279d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return ret; 280d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 281d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_destroy_srq); 282d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Queue pairs */ 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_qp *ib_create_qp(struct ib_pd *pd, 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_init_attr *qp_init_attr) 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp *qp; 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 290b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier qp = pd->device->create_qp(pd, qp_init_attr, NULL); 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(qp)) { 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->device = pd->device; 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->pd = pd; 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->send_cq = qp_init_attr->send_cq; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->recv_cq = qp_init_attr->recv_cq; 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->srq = qp_init_attr->srq; 298b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier qp->uobject = NULL; 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->event_handler = qp_init_attr->event_handler; 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->qp_context = qp_init_attr->qp_context; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->qp_type = qp_init_attr->qp_type; 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&qp_init_attr->send_cq->usecnt); 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&qp_init_attr->recv_cq->usecnt); 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (qp_init_attr->srq) 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&qp_init_attr->srq->usecnt); 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return qp; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_qp); 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3138a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreierstatic const struct { 3148a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier int valid; 3158a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier enum ib_qp_attr_mask req_param[IB_QPT_RAW_ETY + 1]; 3168a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier enum ib_qp_attr_mask opt_param[IB_QPT_RAW_ETY + 1]; 3178a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier} qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = { 3188a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { 3198a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 3208a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 3218a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 3228a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 3238a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 3248a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 3258a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3268a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3278a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_PKEY_INDEX | 3288a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3298a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 3308a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PKEY_INDEX | 3318a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3328a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 3338a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 3348a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3358a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 3368a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3378a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 3388a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 3398a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 3408a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 3418a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 3428a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 3438a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 3448a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 3458a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 3468a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 3478a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3488a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3498a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_PKEY_INDEX | 3508a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3518a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 3528a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PKEY_INDEX | 3538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 3558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 3568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 3588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 3608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 3618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTR] = { 3628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 3638a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 3648a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_AV | 3658a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MTU | 3668a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_DEST_QPN | 3678a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RQ_PSN), 3688a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_AV | 3698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MTU | 3708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_DEST_QPN | 3718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RQ_PSN | 3728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_DEST_RD_ATOMIC | 3738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER), 3748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 3758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 3768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 3778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_ALT_PATH | 3798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 3808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX), 3818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_ALT_PATH | 3828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 3838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX), 3848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 3858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 3878a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3888a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 3898a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 3908a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 3918a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTR] = { 3928a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 3938a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 3948a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 3958a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 3968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 3978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = IB_QP_SQ_PSN, 3988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = IB_QP_SQ_PSN, 3998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_TIMEOUT | 4008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RETRY_CNT | 4018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RNR_RETRY | 4028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_SQ_PSN | 4038a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_QP_RD_ATOMIC), 4048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = IB_QP_SQ_PSN, 4058a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = IB_QP_SQ_PSN, 4068a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4078a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 4088a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 4098a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4108a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 4118a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4128a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 4138a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4148a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_CUR_STATE | 4158a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4168a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 4178a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 4188a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4198a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 4208a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4218a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 4228a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4238a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4248a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4258a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4268a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 4278a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 4288a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 4298a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 4308a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4318a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 4328a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 4338a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4344546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak [IB_QPT_UC] = (IB_QP_CUR_STATE | 4354546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak IB_QP_ACCESS_FLAGS | 4368a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4378a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4384546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak [IB_QPT_RC] = (IB_QP_CUR_STATE | 4394546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak IB_QP_ACCESS_FLAGS | 4408a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4418a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE | 4428a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER), 4438a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 4448a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4458a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 4468a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4478a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4488a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4498a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 4508a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4518a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 4528a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = IB_QP_EN_SQD_ASYNC_NOTIFY, 4538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = IB_QP_EN_SQD_ASYNC_NOTIFY, 4548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = IB_QP_EN_SQD_ASYNC_NOTIFY, 4558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = IB_QP_EN_SQD_ASYNC_NOTIFY, 4568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = IB_QP_EN_SQD_ASYNC_NOTIFY 4578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 4618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 4628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 4638a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 4648a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4658a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 4668a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 4678a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4688a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 4698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 4718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_CUR_STATE | 4738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 4758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 4768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 4788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 4808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 4848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 4868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 4878a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4888a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_AV | 4898a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4908a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 4918a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX | 4928a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4938a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PORT | 4948a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_AV | 4958a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_TIMEOUT | 4968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RETRY_CNT | 4978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RNR_RETRY | 4988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_QP_RD_ATOMIC | 4998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_DEST_RD_ATOMIC | 5008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 5018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 5028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX | 5038a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 5048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 5058a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 5068a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5078a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 5088a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5098a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5108a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5118a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5128a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQE] = { 5138a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 5148a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 5158a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 5168a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 5178a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 5188a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 5198a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5208a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 5218a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 5228a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 5238a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5248a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 5258a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5268a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5278a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5288a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5298a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { 5308a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 5318a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 } 5328a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5338a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier}; 5348a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5358a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreierint ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, 5368a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier enum ib_qp_type type, enum ib_qp_attr_mask mask) 5378a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier{ 5388a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier enum ib_qp_attr_mask req_param, opt_param; 5398a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5408a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (cur_state < 0 || cur_state > IB_QPS_ERR || 5418a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier next_state < 0 || next_state > IB_QPS_ERR) 5428a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 5438a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5448a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (mask & IB_QP_CUR_STATE && 5458a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier cur_state != IB_QPS_RTR && cur_state != IB_QPS_RTS && 5468a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier cur_state != IB_QPS_SQD && cur_state != IB_QPS_SQE) 5478a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 5488a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5498a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (!qp_state_table[cur_state][next_state].valid) 5508a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 5518a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5528a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier req_param = qp_state_table[cur_state][next_state].req_param[type]; 5538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier opt_param = qp_state_table[cur_state][next_state].opt_param[type]; 5548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if ((mask & req_param) != req_param) 5568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 5578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (mask & ~(req_param | opt_param | IB_QP_STATE)) 5598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 5608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 1; 5628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier} 5638a51866f08103ba04894ce0f65eef567ddc3ed40Roland DreierEXPORT_SYMBOL(ib_modify_qp_is_ok); 5648a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_modify_qp(struct ib_qp *qp, 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_attr *qp_attr, 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int qp_attr_mask) 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5699bc57e2d19db4da81c1150120658cc3658a99ed4Ralph Campbell return qp->device->modify_qp(qp, qp_attr, qp_attr_mask, NULL); 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_modify_qp); 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_qp(struct ib_qp *qp, 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_attr *qp_attr, 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int qp_attr_mask, 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_init_attr *qp_init_attr) 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return qp->device->query_qp ? 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->device->query_qp(qp, qp_attr, qp_attr_mask, qp_init_attr) : 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds -ENOSYS; 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_qp); 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_qp(struct ib_qp *qp) 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_cq *scq, *rcq; 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_srq *srq; 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = qp->pd; 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scq = qp->send_cq; 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rcq = qp->recv_cq; 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srq = qp->srq; 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = qp->device->destroy_qp(qp); 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) { 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&scq->usecnt); 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&rcq->usecnt); 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (srq) 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&srq->usecnt); 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_qp); 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Completion queues */ 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_cq *ib_create_cq(struct ib_device *device, 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ib_comp_handler comp_handler, 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void (*event_handler)(struct ib_event *, void *), 614f4fd0b224d60044d2da5ca02f8f2b5150c1d8731Michael S. Tsirkin void *cq_context, int cqe, int comp_vector) 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_cq *cq; 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 618f4fd0b224d60044d2da5ca02f8f2b5150c1d8731Michael S. Tsirkin cq = device->create_cq(device, cqe, comp_vector, NULL, NULL); 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(cq)) { 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->device = device; 622b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier cq->uobject = NULL; 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->comp_handler = comp_handler; 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->event_handler = event_handler; 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->cq_context = cq_context; 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&cq->usecnt, 0); 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cq; 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_cq); 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_cq(struct ib_cq *cq) 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&cq->usecnt)) 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cq->device->destroy_cq(cq); 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_cq); 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 642a74cd4af0bfa9578594acbb711a958104c93b772Roland Dreierint ib_resize_cq(struct ib_cq *cq, int cqe) 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 64440de2e548c225e3ef859e3c60de9785e37e1b5b1Roland Dreier return cq->device->resize_cq ? 64533b9b3ee9709b19c4f02ab91571d53540d05c3d1Roland Dreier cq->device->resize_cq(cq, cqe, NULL) : -ENOSYS; 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_resize_cq); 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Memory regions */ 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags) 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mr *mr; 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr = pd->device->get_dma_mr(pd, mr_access_flags); 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mr)) { 658b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->device = pd->device; 659b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->pd = pd; 660b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->uobject = NULL; 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&mr->usecnt, 0); 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr; 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_get_dma_mr); 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_phys_buf *phys_buf_array, 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num_phys_buf, 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 *iova_start) 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mr *mr; 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6777ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak if (!pd->device->reg_phys_mr) 6787ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak return ERR_PTR(-ENOSYS); 6797ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr = pd->device->reg_phys_mr(pd, phys_buf_array, num_phys_buf, 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr_access_flags, iova_start); 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mr)) { 684b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->device = pd->device; 685b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->pd = pd; 686b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->uobject = NULL; 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&mr->usecnt, 0); 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr; 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_reg_phys_mr); 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_rereg_phys_mr(struct ib_mr *mr, 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_rereg_mask, 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd, 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_phys_buf *phys_buf_array, 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num_phys_buf, 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 *iova_start) 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *old_pd; 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mr->device->rereg_phys_mr) 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOSYS; 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&mr->usecnt)) 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds old_pd = mr->pd; 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mr->device->rereg_phys_mr(mr, mr_rereg_mask, pd, 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds phys_buf_array, num_phys_buf, 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr_access_flags, iova_start); 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret && (mr_rereg_mask & IB_MR_REREG_PD)) { 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&old_pd->usecnt); 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_rereg_phys_mr); 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr->device->query_mr ? 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr->device->query_mr(mr, mr_attr) : -ENOSYS; 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_mr); 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dereg_mr(struct ib_mr *mr) 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&mr->usecnt)) 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = mr->pd; 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mr->device->dereg_mr(mr); 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dereg_mr); 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Memory windows */ 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mw *ib_alloc_mw(struct ib_pd *pd) 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mw *mw; 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!pd->device->alloc_mw) 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ERR_PTR(-ENOSYS); 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mw = pd->device->alloc_mw(pd); 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mw)) { 762b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->device = pd->device; 763b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->pd = pd; 764b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->uobject = NULL; 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mw; 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_mw); 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_mw(struct ib_mw *mw) 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = mw->pd; 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mw->device->dealloc_mw(mw); 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_mw); 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* "Fast" memory regions */ 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr_attr *fmr_attr) 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr *fmr; 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!pd->device->alloc_fmr) 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ERR_PTR(-ENOSYS); 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr = pd->device->alloc_fmr(pd, mr_access_flags, fmr_attr); 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(fmr)) { 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr->device = pd->device; 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr->pd = pd; 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fmr; 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_fmr); 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_unmap_fmr(struct list_head *fmr_list) 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr *fmr; 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (list_empty(fmr_list)) 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr = list_entry(fmr_list->next, struct ib_fmr, list); 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fmr->device->unmap_fmr(fmr_list); 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_unmap_fmr); 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_fmr(struct ib_fmr *fmr) 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = fmr->pd; 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = fmr->device->dealloc_fmr(fmr); 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_fmr); 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Multicast groups */ 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8380c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (!qp->device->attach_mcast) 8390c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -ENOSYS; 8400c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) 8410c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -EINVAL; 8420c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein 8430c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return qp->device->attach_mcast(qp, gid, lid); 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_attach_mcast); 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8490c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (!qp->device->detach_mcast) 8500c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -ENOSYS; 8510c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) 8520c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -EINVAL; 8530c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein 8540c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return qp->device->detach_mcast(qp, gid, lid); 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_detach_mcast); 857