verbs.c revision a3f5adaf491490089215f863a61b9422fae902f8
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> 418c65b4a60450590e79a28e9717ceffa9e4debb3fTim Schmielau#include <linux/string.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 43a4d61e84804f3b14cc35c5e2af768a07c0f64ef6Roland Dreier#include <rdma/ib_verbs.h> 44a4d61e84804f3b14cc35c5e2af768a07c0f64ef6Roland Dreier#include <rdma/ib_cache.h> 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 46bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgensteinint ib_rate_to_mult(enum ib_rate rate) 47bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein{ 48bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein switch (rate) { 49bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_2_5_GBPS: return 1; 50bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_5_GBPS: return 2; 51bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_10_GBPS: return 4; 52bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_20_GBPS: return 8; 53bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_30_GBPS: return 12; 54bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_40_GBPS: return 16; 55bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_60_GBPS: return 24; 56bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_80_GBPS: return 32; 57bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case IB_RATE_120_GBPS: return 48; 58bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein default: return -1; 59bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein } 60bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein} 61bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack MorgensteinEXPORT_SYMBOL(ib_rate_to_mult); 62bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein 63bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgensteinenum ib_rate mult_to_ib_rate(int mult) 64bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein{ 65bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein switch (mult) { 66bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 1: return IB_RATE_2_5_GBPS; 67bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 2: return IB_RATE_5_GBPS; 68bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 4: return IB_RATE_10_GBPS; 69bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 8: return IB_RATE_20_GBPS; 70bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 12: return IB_RATE_30_GBPS; 71bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 16: return IB_RATE_40_GBPS; 72bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 24: return IB_RATE_60_GBPS; 73bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 32: return IB_RATE_80_GBPS; 74bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein case 48: return IB_RATE_120_GBPS; 75bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein default: return IB_RATE_PORT_CURRENT; 76bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein } 77bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein} 78bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack MorgensteinEXPORT_SYMBOL(mult_to_ib_rate); 79bf6a9e31cfa768ce0a8e18474b3ca808641d9243Jack Morgenstein 8007ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tuckerenum rdma_transport_type 8107ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tuckerrdma_node_get_transport(enum rdma_node_type node_type) 8207ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker{ 8307ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker switch (node_type) { 8407ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_IB_CA: 8507ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_IB_SWITCH: 8607ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_IB_ROUTER: 8707ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker return RDMA_TRANSPORT_IB; 8807ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker case RDMA_NODE_RNIC: 8907ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker return RDMA_TRANSPORT_IWARP; 9007ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker default: 9107ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker BUG(); 9207ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker return 0; 9307ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker } 9407ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker} 9507ebafbaaa72aa6a35472879008f5a1d1d469a0cTom TuckerEXPORT_SYMBOL(rdma_node_get_transport); 9607ebafbaaa72aa6a35472879008f5a1d1d469a0cTom Tucker 97a3f5adaf491490089215f863a61b9422fae902f8Eli Cohenenum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_num) 98a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen{ 99a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen if (device->get_link_layer) 100a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen return device->get_link_layer(device, port_num); 101a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen 102a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen switch (rdma_node_get_transport(device->node_type)) { 103a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen case RDMA_TRANSPORT_IB: 104a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen return IB_LINK_LAYER_INFINIBAND; 105a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen case RDMA_TRANSPORT_IWARP: 106a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen return IB_LINK_LAYER_ETHERNET; 107a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen default: 108a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen return IB_LINK_LAYER_UNSPECIFIED; 109a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen } 110a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen} 111a3f5adaf491490089215f863a61b9422fae902f8Eli CohenEXPORT_SYMBOL(rdma_port_get_link_layer); 112a3f5adaf491490089215f863a61b9422fae902f8Eli Cohen 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Protection domains */ 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_pd *ib_alloc_pd(struct ib_device *device) 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 119b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier pd = device->alloc_pd(device, NULL, NULL); 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(pd)) { 122b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier pd->device = device; 123b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier pd->uobject = NULL; 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&pd->usecnt, 0); 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return pd; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_pd); 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_pd(struct ib_pd *pd) 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&pd->usecnt)) 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return pd->device->dealloc_pd(pd); 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_pd); 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Address handles */ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_ah *ah; 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ah = pd->device->create_ah(pd, ah_attr); 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(ah)) { 149b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier ah->device = pd->device; 150b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier ah->pd = pd; 151b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier ah->uobject = NULL; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ah; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_ah); 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1594e00d69454a8747798de11dc4eeef1edeee5ce98Sean Heftyint ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc, 1604e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty struct ib_grh *grh, struct ib_ah_attr *ah_attr) 161513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock{ 162513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock u32 flow_class; 163513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock u16 gid_index; 164513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock int ret; 165513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 1664e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty memset(ah_attr, 0, sizeof *ah_attr); 1674e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->dlid = wc->slid; 1684e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->sl = wc->sl; 1694e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->src_path_bits = wc->dlid_path_bits; 1704e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->port_num = port_num; 171513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 172513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock if (wc->wc_flags & IB_WC_GRH) { 1734e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->ah_flags = IB_AH_GRH; 1744e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.dgid = grh->sgid; 175513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 1764e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ret = ib_find_cached_gid(device, &grh->dgid, &port_num, 177513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock &gid_index); 178513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock if (ret) 1794e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty return ret; 180513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 1814e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.sgid_index = (u8) gid_index; 182497677ab940e637a41351dca6610bc4320abc8f1Hal Rosenstock flow_class = be32_to_cpu(grh->version_tclass_flow); 1834e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.flow_label = flow_class & 0xFFFFF; 18447645d8d25387c08bb3ccd84e1405c3776f21d24Sean Hefty ah_attr->grh.hop_limit = 0xFF; 1854e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ah_attr->grh.traffic_class = (flow_class >> 20) & 0xFF; 186513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock } 1874e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty return 0; 1884e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty} 1894e00d69454a8747798de11dc4eeef1edeee5ce98Sean HeftyEXPORT_SYMBOL(ib_init_ah_from_wc); 1904e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty 1914e00d69454a8747798de11dc4eeef1edeee5ce98Sean Heftystruct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc, 1924e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty struct ib_grh *grh, u8 port_num) 1934e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty{ 1944e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty struct ib_ah_attr ah_attr; 1954e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty int ret; 1964e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty 1974e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty ret = ib_init_ah_from_wc(pd->device, port_num, wc, grh, &ah_attr); 1984e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty if (ret) 1994e00d69454a8747798de11dc4eeef1edeee5ce98Sean Hefty return ERR_PTR(ret); 200513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 201513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock return ib_create_ah(pd, &ah_attr); 202513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock} 203513789ed995fb2ba72ba2a5bee53ea11d1170580Hal RosenstockEXPORT_SYMBOL(ib_create_ah_from_wc); 204513789ed995fb2ba72ba2a5bee53ea11d1170580Hal Rosenstock 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr) 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ah->device->modify_ah ? 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ah->device->modify_ah(ah, ah_attr) : 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds -ENOSYS; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_modify_ah); 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr) 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ah->device->query_ah ? 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ah->device->query_ah(ah, ah_attr) : 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds -ENOSYS; 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_ah); 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_ah(struct ib_ah *ah) 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = ah->pd; 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = ah->device->destroy_ah(ah); 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_ah); 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 235d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier/* Shared receive queues */ 236d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 237d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierstruct ib_srq *ib_create_srq(struct ib_pd *pd, 238d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq_init_attr *srq_init_attr) 239d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 240d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq *srq; 241d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 242d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (!pd->device->create_srq) 243d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return ERR_PTR(-ENOSYS); 244d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 245d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq = pd->device->create_srq(pd, srq_init_attr, NULL); 246d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 247d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (!IS_ERR(srq)) { 248d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->device = pd->device; 249d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->pd = pd; 250d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->uobject = NULL; 251d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->event_handler = srq_init_attr->event_handler; 252d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->srq_context = srq_init_attr->srq_context; 253d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier atomic_inc(&pd->usecnt); 254d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier atomic_set(&srq->usecnt, 0); 255d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier } 256d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 257d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return srq; 258d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 259d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_create_srq); 260d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 261d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierint ib_modify_srq(struct ib_srq *srq, 262d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq_attr *srq_attr, 263d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier enum ib_srq_attr_mask srq_attr_mask) 264d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 2657ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak return srq->device->modify_srq ? 2667ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL) : 2677ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak -ENOSYS; 268d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 269d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_modify_srq); 270d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 271d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierint ib_query_srq(struct ib_srq *srq, 272d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_srq_attr *srq_attr) 273d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 274d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return srq->device->query_srq ? 275d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier srq->device->query_srq(srq, srq_attr) : -ENOSYS; 276d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 277d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_query_srq); 278d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 279d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreierint ib_destroy_srq(struct ib_srq *srq) 280d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier{ 281d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier struct ib_pd *pd; 282d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier int ret; 283d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 284d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (atomic_read(&srq->usecnt)) 285d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return -EBUSY; 286d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 287d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier pd = srq->pd; 288d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 289d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier ret = srq->device->destroy_srq(srq); 290d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier if (!ret) 291d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier atomic_dec(&pd->usecnt); 292d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 293d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier return ret; 294d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier} 295d41fcc6705eddd04f7218c985b6da35435ed73ccRoland DreierEXPORT_SYMBOL(ib_destroy_srq); 296d41fcc6705eddd04f7218c985b6da35435ed73ccRoland Dreier 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Queue pairs */ 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_qp *ib_create_qp(struct ib_pd *pd, 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_init_attr *qp_init_attr) 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp *qp; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 304b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier qp = pd->device->create_qp(pd, qp_init_attr, NULL); 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(qp)) { 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->device = pd->device; 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->pd = pd; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->send_cq = qp_init_attr->send_cq; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->recv_cq = qp_init_attr->recv_cq; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->srq = qp_init_attr->srq; 312b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier qp->uobject = NULL; 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->event_handler = qp_init_attr->event_handler; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->qp_context = qp_init_attr->qp_context; 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->qp_type = qp_init_attr->qp_type; 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&qp_init_attr->send_cq->usecnt); 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&qp_init_attr->recv_cq->usecnt); 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (qp_init_attr->srq) 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&qp_init_attr->srq->usecnt); 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return qp; 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_qp); 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3278a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreierstatic const struct { 3288a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier int valid; 329a2ebf07ae53e65bd073f96877e4818f2e89271aeAleksey Senin enum ib_qp_attr_mask req_param[IB_QPT_RAW_ETHERTYPE + 1]; 330a2ebf07ae53e65bd073f96877e4818f2e89271aeAleksey Senin enum ib_qp_attr_mask opt_param[IB_QPT_RAW_ETHERTYPE + 1]; 3318a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier} qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = { 3328a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { 3338a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 3348a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 3358a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 3368a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 3378a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 3388a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3398a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3408a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_PKEY_INDEX | 3418a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3428a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 3438a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PKEY_INDEX | 3448a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3458a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 3468a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 3478a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3488a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 3498a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3508a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 3518a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 3528a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 3538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 3548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 3558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 3568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_INIT] = { 3578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 3588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 3598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 3608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_PKEY_INDEX | 3638a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3648a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 3658a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PKEY_INDEX | 3668a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PORT | 3678a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 3688a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 3698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 3718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 3738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 3748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTR] = { 3758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 3768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 3778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_AV | 3788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MTU | 3798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_DEST_QPN | 3808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RQ_PSN), 3818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_AV | 3828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MTU | 3838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_DEST_QPN | 3848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RQ_PSN | 3858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_DEST_RD_ATOMIC | 3868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER), 3878a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 3888a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 3898a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 3908a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3918a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_ALT_PATH | 3928a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 3938a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX), 3948a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_ALT_PATH | 3958a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 3968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX), 3978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 3988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 3998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 4008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4038a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTR] = { 4058a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 4068a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 4078a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 4088a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4098a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .req_param = { 4108a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = IB_QP_SQ_PSN, 4118a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = IB_QP_SQ_PSN, 4128a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_TIMEOUT | 4138a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RETRY_CNT | 4148a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RNR_RETRY | 4158a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_SQ_PSN | 4168a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_QP_RD_ATOMIC), 4178a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = IB_QP_SQ_PSN, 4188a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = IB_QP_SQ_PSN, 4198a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4208a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 4218a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 4228a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4238a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 4248a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4258a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 4268a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4278a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_CUR_STATE | 4288a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4298a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 4308a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 4318a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4328a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 4338a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4348a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 4358a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4368a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4378a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4388a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4398a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 4408a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 4418a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 4428a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 4438a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4448a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 4458a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 4468a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4474546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak [IB_QPT_UC] = (IB_QP_CUR_STATE | 4484546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak IB_QP_ACCESS_FLAGS | 4498a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4508a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4514546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak [IB_QPT_RC] = (IB_QP_CUR_STATE | 4524546d31d84beafe74c56651173ac4fe197c7de8bDotan Barak IB_QP_ACCESS_FLAGS | 4538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE | 4558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER), 4568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 4578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 4598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 4638a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4648a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 4658a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = IB_QP_EN_SQD_ASYNC_NOTIFY, 4668a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = IB_QP_EN_SQD_ASYNC_NOTIFY, 4678a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = IB_QP_EN_SQD_ASYNC_NOTIFY, 4688a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = IB_QP_EN_SQD_ASYNC_NOTIFY, 4698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = IB_QP_EN_SQD_ASYNC_NOTIFY 4708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 4748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 4758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 4768a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 4778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4788a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 4798a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 4808a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4818a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 4828a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4838a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 4848a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4858a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_CUR_STATE | 4868a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 4878a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 4888a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 4898a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 4908a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 4918a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4928a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 4938a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 4948a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 4958a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 4968a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQD] = { 4978a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 4988a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 4998a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_PKEY_INDEX | 5008a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5018a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_AV | 5028a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 5038a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 5048a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX | 5058a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 5068a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_RC] = (IB_QP_PORT | 5078a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_AV | 5088a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_TIMEOUT | 5098a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RETRY_CNT | 5108a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_RNR_RETRY | 5118a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_QP_RD_ATOMIC | 5128a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MAX_DEST_RD_ATOMIC | 5138a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ALT_PATH | 5148a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS | 5158a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PKEY_INDEX | 5168a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_MIN_RNR_TIMER | 5178a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_PATH_MIG_STATE), 5188a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_PKEY_INDEX | 5198a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5208a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_PKEY_INDEX | 5218a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5228a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5238a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5248a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5258a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_SQE] = { 5268a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 5278a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 }, 5288a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RTS] = { 5298a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .valid = 1, 5308a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier .opt_param = { 5318a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UD] = (IB_QP_CUR_STATE | 5328a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5338a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_UC] = (IB_QP_CUR_STATE | 5348a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_ACCESS_FLAGS), 5358a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_SMI] = (IB_QP_CUR_STATE | 5368a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5378a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPT_GSI] = (IB_QP_CUR_STATE | 5388a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier IB_QP_QKEY), 5398a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5408a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5418a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier }, 5428a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { 5438a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_RESET] = { .valid = 1 }, 5448a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier [IB_QPS_ERR] = { .valid = 1 } 5458a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier } 5468a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier}; 5478a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5488a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreierint ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, 5498a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier enum ib_qp_type type, enum ib_qp_attr_mask mask) 5508a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier{ 5518a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier enum ib_qp_attr_mask req_param, opt_param; 5528a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5538a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (cur_state < 0 || cur_state > IB_QPS_ERR || 5548a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier next_state < 0 || next_state > IB_QPS_ERR) 5558a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 5568a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5578a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (mask & IB_QP_CUR_STATE && 5588a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier cur_state != IB_QPS_RTR && cur_state != IB_QPS_RTS && 5598a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier cur_state != IB_QPS_SQD && cur_state != IB_QPS_SQE) 5608a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 5618a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5628a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (!qp_state_table[cur_state][next_state].valid) 5638a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 5648a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5658a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier req_param = qp_state_table[cur_state][next_state].req_param[type]; 5668a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier opt_param = qp_state_table[cur_state][next_state].opt_param[type]; 5678a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5688a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if ((mask & req_param) != req_param) 5698a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 5708a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5718a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier if (mask & ~(req_param | opt_param | IB_QP_STATE)) 5728a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 0; 5738a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5748a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier return 1; 5758a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier} 5768a51866f08103ba04894ce0f65eef567ddc3ed40Roland DreierEXPORT_SYMBOL(ib_modify_qp_is_ok); 5778a51866f08103ba04894ce0f65eef567ddc3ed40Roland Dreier 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_modify_qp(struct ib_qp *qp, 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_attr *qp_attr, 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int qp_attr_mask) 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5829bc57e2d19db4da81c1150120658cc3658a99ed4Ralph Campbell return qp->device->modify_qp(qp, qp_attr, qp_attr_mask, NULL); 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_modify_qp); 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_qp(struct ib_qp *qp, 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_attr *qp_attr, 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int qp_attr_mask, 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_qp_init_attr *qp_init_attr) 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return qp->device->query_qp ? 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds qp->device->query_qp(qp, qp_attr, qp_attr_mask, qp_init_attr) : 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds -ENOSYS; 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_qp); 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_qp(struct ib_qp *qp) 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_cq *scq, *rcq; 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_srq *srq; 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = qp->pd; 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scq = qp->send_cq; 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rcq = qp->recv_cq; 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds srq = qp->srq; 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = qp->device->destroy_qp(qp); 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) { 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&scq->usecnt); 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&rcq->usecnt); 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (srq) 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&srq->usecnt); 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_qp); 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Completion queues */ 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_cq *ib_create_cq(struct ib_device *device, 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ib_comp_handler comp_handler, 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void (*event_handler)(struct ib_event *, void *), 627f4fd0b224d60044d2da5ca02f8f2b5150c1d8731Michael S. Tsirkin void *cq_context, int cqe, int comp_vector) 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_cq *cq; 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 631f4fd0b224d60044d2da5ca02f8f2b5150c1d8731Michael S. Tsirkin cq = device->create_cq(device, cqe, comp_vector, NULL, NULL); 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(cq)) { 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->device = device; 635b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier cq->uobject = NULL; 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->comp_handler = comp_handler; 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->event_handler = event_handler; 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cq->cq_context = cq_context; 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&cq->usecnt, 0); 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cq; 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_create_cq); 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6462dd5716227878d5950988514a2cbabf72f7fc888Eli Cohenint ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period) 6472dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen{ 6482dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen return cq->device->modify_cq ? 6492dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen cq->device->modify_cq(cq, cq_count, cq_period) : -ENOSYS; 6502dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen} 6512dd5716227878d5950988514a2cbabf72f7fc888Eli CohenEXPORT_SYMBOL(ib_modify_cq); 6522dd5716227878d5950988514a2cbabf72f7fc888Eli Cohen 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_destroy_cq(struct ib_cq *cq) 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&cq->usecnt)) 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return cq->device->destroy_cq(cq); 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_destroy_cq); 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 662a74cd4af0bfa9578594acbb711a958104c93b772Roland Dreierint ib_resize_cq(struct ib_cq *cq, int cqe) 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 66440de2e548c225e3ef859e3c60de9785e37e1b5b1Roland Dreier return cq->device->resize_cq ? 66533b9b3ee9709b19c4f02ab91571d53540d05c3d1Roland Dreier cq->device->resize_cq(cq, cqe, NULL) : -ENOSYS; 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_resize_cq); 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Memory regions */ 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags) 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mr *mr; 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr = pd->device->get_dma_mr(pd, mr_access_flags); 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mr)) { 678b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->device = pd->device; 679b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->pd = pd; 680b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->uobject = NULL; 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&mr->usecnt, 0); 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr; 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_get_dma_mr); 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_phys_buf *phys_buf_array, 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num_phys_buf, 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 *iova_start) 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mr *mr; 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6977ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak if (!pd->device->reg_phys_mr) 6987ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak return ERR_PTR(-ENOSYS); 6997ce5eacb45a7c819a6bec6ed486f27db9aab6ab6Dotan Barak 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr = pd->device->reg_phys_mr(pd, phys_buf_array, num_phys_buf, 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr_access_flags, iova_start); 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mr)) { 704b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->device = pd->device; 705b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->pd = pd; 706b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mr->uobject = NULL; 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set(&mr->usecnt, 0); 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr; 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_reg_phys_mr); 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_rereg_phys_mr(struct ib_mr *mr, 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_rereg_mask, 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd, 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_phys_buf *phys_buf_array, 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int num_phys_buf, 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 *iova_start) 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *old_pd; 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!mr->device->rereg_phys_mr) 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOSYS; 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&mr->usecnt)) 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds old_pd = mr->pd; 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mr->device->rereg_phys_mr(mr, mr_rereg_mask, pd, 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds phys_buf_array, num_phys_buf, 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr_access_flags, iova_start); 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret && (mr_rereg_mask & IB_MR_REREG_PD)) { 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&old_pd->usecnt); 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_rereg_phys_mr); 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mr->device->query_mr ? 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mr->device->query_mr(mr, mr_attr) : -ENOSYS; 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_query_mr); 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dereg_mr(struct ib_mr *mr) 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (atomic_read(&mr->usecnt)) 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = mr->pd; 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mr->device->dereg_mr(mr); 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dereg_mr); 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 77100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wisestruct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len) 77200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise{ 77300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise struct ib_mr *mr; 77400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 77500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!pd->device->alloc_fast_reg_mr) 77600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return ERR_PTR(-ENOSYS); 77700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 77800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr = pd->device->alloc_fast_reg_mr(pd, max_page_list_len); 77900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 78000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!IS_ERR(mr)) { 78100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr->device = pd->device; 78200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr->pd = pd; 78300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise mr->uobject = NULL; 78400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise atomic_inc(&pd->usecnt); 78500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise atomic_set(&mr->usecnt, 0); 78600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise } 78700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 78800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return mr; 78900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise} 79000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve WiseEXPORT_SYMBOL(ib_alloc_fast_reg_mr); 79100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 79200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wisestruct ib_fast_reg_page_list *ib_alloc_fast_reg_page_list(struct ib_device *device, 79300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise int max_page_list_len) 79400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise{ 79500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise struct ib_fast_reg_page_list *page_list; 79600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 79700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!device->alloc_fast_reg_page_list) 79800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return ERR_PTR(-ENOSYS); 79900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 80000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list = device->alloc_fast_reg_page_list(device, max_page_list_len); 80100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 80200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise if (!IS_ERR(page_list)) { 80300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list->device = device; 80400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list->max_page_list_len = max_page_list_len; 80500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise } 80600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 80700f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise return page_list; 80800f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise} 80900f7ec36c9324928e4cd23f02e6d8550f30c32caSteve WiseEXPORT_SYMBOL(ib_alloc_fast_reg_page_list); 81000f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 81100f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wisevoid ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list) 81200f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise{ 81300f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise page_list->device->free_fast_reg_page_list(page_list); 81400f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise} 81500f7ec36c9324928e4cd23f02e6d8550f30c32caSteve WiseEXPORT_SYMBOL(ib_free_fast_reg_page_list); 81600f7ec36c9324928e4cd23f02e6d8550f30c32caSteve Wise 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Memory windows */ 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_mw *ib_alloc_mw(struct ib_pd *pd) 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_mw *mw; 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!pd->device->alloc_mw) 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ERR_PTR(-ENOSYS); 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mw = pd->device->alloc_mw(pd); 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(mw)) { 828b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->device = pd->device; 829b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->pd = pd; 830b5e81bf5e7084796d93167f438ec073e59aca9edRoland Dreier mw->uobject = NULL; 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return mw; 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_mw); 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_mw(struct ib_mw *mw) 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = mw->pd; 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = mw->device->dealloc_mw(mw); 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_mw); 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* "Fast" memory regions */ 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mr_access_flags, 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr_attr *fmr_attr) 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr *fmr; 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!pd->device->alloc_fmr) 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ERR_PTR(-ENOSYS); 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr = pd->device->alloc_fmr(pd, mr_access_flags, fmr_attr); 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!IS_ERR(fmr)) { 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr->device = pd->device; 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr->pd = pd; 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_inc(&pd->usecnt); 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fmr; 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_alloc_fmr); 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_unmap_fmr(struct list_head *fmr_list) 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_fmr *fmr; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (list_empty(fmr_list)) 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fmr = list_entry(fmr_list->next, struct ib_fmr, list); 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fmr->device->unmap_fmr(fmr_list); 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_unmap_fmr); 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_dealloc_fmr(struct ib_fmr *fmr) 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ib_pd *pd; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pd = fmr->pd; 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = fmr->device->dealloc_fmr(fmr); 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ret) 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_dec(&pd->usecnt); 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_dealloc_fmr); 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Multicast groups */ 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9040c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (!qp->device->attach_mcast) 9050c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -ENOSYS; 9060c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) 9070c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -EINVAL; 9080c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein 9090c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return qp->device->attach_mcast(qp, gid, lid); 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_attach_mcast); 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9150c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (!qp->device->detach_mcast) 9160c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -ENOSYS; 9170c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD) 9180c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return -EINVAL; 9190c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein 9200c33aeedb2cf99d877ad9adc7c3df07870f60293Jack Morgenstein return qp->device->detach_mcast(qp, gid, lid); 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ib_detach_mcast); 923