18700e3e7SMoni Shoua /* 28700e3e7SMoni Shoua * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. 38700e3e7SMoni Shoua * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved. 48700e3e7SMoni Shoua * 58700e3e7SMoni Shoua * This software is available to you under a choice of one of two 68700e3e7SMoni Shoua * licenses. You may choose to be licensed under the terms of the GNU 78700e3e7SMoni Shoua * General Public License (GPL) Version 2, available from the file 88700e3e7SMoni Shoua * COPYING in the main directory of this source tree, or the 98700e3e7SMoni Shoua * OpenIB.org BSD license below: 108700e3e7SMoni Shoua * 118700e3e7SMoni Shoua * Redistribution and use in source and binary forms, with or 128700e3e7SMoni Shoua * without modification, are permitted provided that the following 138700e3e7SMoni Shoua * conditions are met: 148700e3e7SMoni Shoua * 158700e3e7SMoni Shoua * - Redistributions of source code must retain the above 168700e3e7SMoni Shoua * copyright notice, this list of conditions and the following 178700e3e7SMoni Shoua * disclaimer. 188700e3e7SMoni Shoua * 198700e3e7SMoni Shoua * - Redistributions in binary form must reproduce the above 208700e3e7SMoni Shoua * copyright notice, this list of conditions and the following 218700e3e7SMoni Shoua * disclaimer in the documentation and/or other materials 228700e3e7SMoni Shoua * provided with the distribution. 238700e3e7SMoni Shoua * 248700e3e7SMoni Shoua * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 258700e3e7SMoni Shoua * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 268700e3e7SMoni Shoua * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 278700e3e7SMoni Shoua * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 288700e3e7SMoni Shoua * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 298700e3e7SMoni Shoua * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 308700e3e7SMoni Shoua * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 318700e3e7SMoni Shoua * SOFTWARE. 328700e3e7SMoni Shoua */ 338700e3e7SMoni Shoua 340bbb3b74SBart Van Assche #include <linux/dma-mapping.h> 354d6f2859SYuval Shaia #include <net/addrconf.h> 3689944450SShamir Rabinovitch #include <rdma/uverbs_ioctl.h> 378700e3e7SMoni Shoua #include "rxe.h" 388700e3e7SMoni Shoua #include "rxe_loc.h" 398700e3e7SMoni Shoua #include "rxe_queue.h" 400b1e5b99SYonatan Cohen #include "rxe_hw_counters.h" 418700e3e7SMoni Shoua 428700e3e7SMoni Shoua static int rxe_query_device(struct ib_device *dev, 438700e3e7SMoni Shoua struct ib_device_attr *attr, 448700e3e7SMoni Shoua struct ib_udata *uhw) 458700e3e7SMoni Shoua { 468700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 478700e3e7SMoni Shoua 488700e3e7SMoni Shoua if (uhw->inlen || uhw->outlen) 498700e3e7SMoni Shoua return -EINVAL; 508700e3e7SMoni Shoua 518700e3e7SMoni Shoua *attr = rxe->attr; 528700e3e7SMoni Shoua return 0; 538700e3e7SMoni Shoua } 548700e3e7SMoni Shoua 558700e3e7SMoni Shoua static int rxe_query_port(struct ib_device *dev, 568700e3e7SMoni Shoua u8 port_num, struct ib_port_attr *attr) 578700e3e7SMoni Shoua { 588700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 598700e3e7SMoni Shoua struct rxe_port *port; 6059590b8aSYuval Shaia int rc; 618700e3e7SMoni Shoua 628700e3e7SMoni Shoua port = &rxe->port; 638700e3e7SMoni Shoua 64c4550c63SOr Gerlitz /* *attr being zeroed by the caller, avoid zeroing it here */ 658700e3e7SMoni Shoua *attr = port->attr; 668700e3e7SMoni Shoua 678700e3e7SMoni Shoua mutex_lock(&rxe->usdev_lock); 68d4186194SYuval Shaia rc = ib_get_eth_speed(dev, port_num, &attr->active_speed, 69e404f945SParav Pandit &attr->active_width); 705736c7c4SAndrew Boyer 715736c7c4SAndrew Boyer if (attr->state == IB_PORT_ACTIVE) 7272a7720fSKamal Heib attr->phys_state = IB_PORT_PHYS_STATE_LINK_UP; 735736c7c4SAndrew Boyer else if (dev_get_flags(rxe->ndev) & IFF_UP) 7472a7720fSKamal Heib attr->phys_state = IB_PORT_PHYS_STATE_POLLING; 755736c7c4SAndrew Boyer else 7672a7720fSKamal Heib attr->phys_state = IB_PORT_PHYS_STATE_DISABLED; 775736c7c4SAndrew Boyer 788700e3e7SMoni Shoua mutex_unlock(&rxe->usdev_lock); 798700e3e7SMoni Shoua 80d4186194SYuval Shaia return rc; 818700e3e7SMoni Shoua } 828700e3e7SMoni Shoua 838700e3e7SMoni Shoua static int rxe_query_pkey(struct ib_device *device, 848700e3e7SMoni Shoua u8 port_num, u16 index, u16 *pkey) 858700e3e7SMoni Shoua { 8676251e15SKamal Heib if (index > 0) 878700e3e7SMoni Shoua return -EINVAL; 8876251e15SKamal Heib 8976251e15SKamal Heib *pkey = IB_DEFAULT_PKEY_FULL; 9076251e15SKamal Heib return 0; 918700e3e7SMoni Shoua } 928700e3e7SMoni Shoua 938700e3e7SMoni Shoua static int rxe_modify_device(struct ib_device *dev, 948700e3e7SMoni Shoua int mask, struct ib_device_modify *attr) 958700e3e7SMoni Shoua { 968700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 978700e3e7SMoni Shoua 98f3fceba5SKamal Heib if (mask & ~(IB_DEVICE_MODIFY_SYS_IMAGE_GUID | 99f3fceba5SKamal Heib IB_DEVICE_MODIFY_NODE_DESC)) 100f3fceba5SKamal Heib return -EOPNOTSUPP; 101f3fceba5SKamal Heib 1028700e3e7SMoni Shoua if (mask & IB_DEVICE_MODIFY_SYS_IMAGE_GUID) 1038700e3e7SMoni Shoua rxe->attr.sys_image_guid = cpu_to_be64(attr->sys_image_guid); 1048700e3e7SMoni Shoua 1058700e3e7SMoni Shoua if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 1068700e3e7SMoni Shoua memcpy(rxe->ib_dev.node_desc, 1078700e3e7SMoni Shoua attr->node_desc, sizeof(rxe->ib_dev.node_desc)); 1088700e3e7SMoni Shoua } 1098700e3e7SMoni Shoua 1108700e3e7SMoni Shoua return 0; 1118700e3e7SMoni Shoua } 1128700e3e7SMoni Shoua 1138700e3e7SMoni Shoua static int rxe_modify_port(struct ib_device *dev, 1148700e3e7SMoni Shoua u8 port_num, int mask, struct ib_port_modify *attr) 1158700e3e7SMoni Shoua { 1168700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1178700e3e7SMoni Shoua struct rxe_port *port; 1188700e3e7SMoni Shoua 1198700e3e7SMoni Shoua port = &rxe->port; 1208700e3e7SMoni Shoua 1218700e3e7SMoni Shoua port->attr.port_cap_flags |= attr->set_port_cap_mask; 1228700e3e7SMoni Shoua port->attr.port_cap_flags &= ~attr->clr_port_cap_mask; 1238700e3e7SMoni Shoua 1248700e3e7SMoni Shoua if (mask & IB_PORT_RESET_QKEY_CNTR) 1258700e3e7SMoni Shoua port->attr.qkey_viol_cntr = 0; 1268700e3e7SMoni Shoua 1278700e3e7SMoni Shoua return 0; 1288700e3e7SMoni Shoua } 1298700e3e7SMoni Shoua 1308700e3e7SMoni Shoua static enum rdma_link_layer rxe_get_link_layer(struct ib_device *dev, 1318700e3e7SMoni Shoua u8 port_num) 1328700e3e7SMoni Shoua { 133420bd9e2SKamal Heib return IB_LINK_LAYER_ETHERNET; 1348700e3e7SMoni Shoua } 1358700e3e7SMoni Shoua 136a2a074efSLeon Romanovsky static int rxe_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata) 1378700e3e7SMoni Shoua { 138a2a074efSLeon Romanovsky struct rxe_dev *rxe = to_rdev(uctx->device); 139a2a074efSLeon Romanovsky struct rxe_ucontext *uc = to_ruc(uctx); 1408700e3e7SMoni Shoua 141a2a074efSLeon Romanovsky return rxe_add_to_pool(&rxe->uc_pool, &uc->pelem); 1428700e3e7SMoni Shoua } 1438700e3e7SMoni Shoua 144a2a074efSLeon Romanovsky static void rxe_dealloc_ucontext(struct ib_ucontext *ibuc) 1458700e3e7SMoni Shoua { 1468700e3e7SMoni Shoua struct rxe_ucontext *uc = to_ruc(ibuc); 1478700e3e7SMoni Shoua 1488700e3e7SMoni Shoua rxe_drop_ref(uc); 1498700e3e7SMoni Shoua } 1508700e3e7SMoni Shoua 1518700e3e7SMoni Shoua static int rxe_port_immutable(struct ib_device *dev, u8 port_num, 1528700e3e7SMoni Shoua struct ib_port_immutable *immutable) 1538700e3e7SMoni Shoua { 1548700e3e7SMoni Shoua int err; 1558700e3e7SMoni Shoua struct ib_port_attr attr; 1568700e3e7SMoni Shoua 157c4550c63SOr Gerlitz immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; 158c4550c63SOr Gerlitz 159c4550c63SOr Gerlitz err = ib_query_port(dev, port_num, &attr); 1608700e3e7SMoni Shoua if (err) 1618700e3e7SMoni Shoua return err; 1628700e3e7SMoni Shoua 1638700e3e7SMoni Shoua immutable->pkey_tbl_len = attr.pkey_tbl_len; 1648700e3e7SMoni Shoua immutable->gid_tbl_len = attr.gid_tbl_len; 1658700e3e7SMoni Shoua immutable->max_mad_size = IB_MGMT_MAD_SIZE; 1668700e3e7SMoni Shoua 1678700e3e7SMoni Shoua return 0; 1688700e3e7SMoni Shoua } 1698700e3e7SMoni Shoua 170ff23dfa1SShamir Rabinovitch static int rxe_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) 1718700e3e7SMoni Shoua { 17221a428a0SLeon Romanovsky struct rxe_dev *rxe = to_rdev(ibpd->device); 17321a428a0SLeon Romanovsky struct rxe_pd *pd = to_rpd(ibpd); 1748700e3e7SMoni Shoua 17521a428a0SLeon Romanovsky return rxe_add_to_pool(&rxe->pd_pool, &pd->pelem); 1768700e3e7SMoni Shoua } 1778700e3e7SMoni Shoua 178c4367a26SShamir Rabinovitch static void rxe_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) 1798700e3e7SMoni Shoua { 1808700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 1818700e3e7SMoni Shoua 1828700e3e7SMoni Shoua rxe_drop_ref(pd); 1838700e3e7SMoni Shoua } 1848700e3e7SMoni Shoua 185fa5d010cSMaor Gottlieb static int rxe_create_ah(struct ib_ah *ibah, 186fa5d010cSMaor Gottlieb struct rdma_ah_init_attr *init_attr, 187fa5d010cSMaor Gottlieb struct ib_udata *udata) 188477864c8SMoni Shoua 1898700e3e7SMoni Shoua { 1908700e3e7SMoni Shoua int err; 191d3456914SLeon Romanovsky struct rxe_dev *rxe = to_rdev(ibah->device); 192d3456914SLeon Romanovsky struct rxe_ah *ah = to_rah(ibah); 1938700e3e7SMoni Shoua 194fa5d010cSMaor Gottlieb err = rxe_av_chk_attr(rxe, init_attr->ah_attr); 1958700e3e7SMoni Shoua if (err) 196d3456914SLeon Romanovsky return err; 1978700e3e7SMoni Shoua 198d3456914SLeon Romanovsky err = rxe_add_to_pool(&rxe->ah_pool, &ah->pelem); 199d3456914SLeon Romanovsky if (err) 200d3456914SLeon Romanovsky return err; 2018700e3e7SMoni Shoua 202fa5d010cSMaor Gottlieb rxe_init_av(init_attr->ah_attr, &ah->av); 203d3456914SLeon Romanovsky return 0; 2048700e3e7SMoni Shoua } 2058700e3e7SMoni Shoua 20690898850SDasaratharaman Chandramouli static int rxe_modify_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr) 2078700e3e7SMoni Shoua { 2088700e3e7SMoni Shoua int err; 2098700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibah->device); 2108700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2118700e3e7SMoni Shoua 2128700e3e7SMoni Shoua err = rxe_av_chk_attr(rxe, attr); 2138700e3e7SMoni Shoua if (err) 2148700e3e7SMoni Shoua return err; 2158700e3e7SMoni Shoua 216fa407188SKamal Heib rxe_init_av(attr, &ah->av); 2178700e3e7SMoni Shoua return 0; 2188700e3e7SMoni Shoua } 2198700e3e7SMoni Shoua 22090898850SDasaratharaman Chandramouli static int rxe_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr) 2218700e3e7SMoni Shoua { 2228700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2238700e3e7SMoni Shoua 224eca7ddf9SDasaratharaman Chandramouli memset(attr, 0, sizeof(*attr)); 22544c58487SDasaratharaman Chandramouli attr->type = ibah->type; 2269c96f3d4SZhu Yanjun rxe_av_to_attr(&ah->av, attr); 2278700e3e7SMoni Shoua return 0; 2288700e3e7SMoni Shoua } 2298700e3e7SMoni Shoua 230d3456914SLeon Romanovsky static void rxe_destroy_ah(struct ib_ah *ibah, u32 flags) 2318700e3e7SMoni Shoua { 2328700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2338700e3e7SMoni Shoua 2348700e3e7SMoni Shoua rxe_drop_ref(ah); 2358700e3e7SMoni Shoua } 2368700e3e7SMoni Shoua 237d34ac5cdSBart Van Assche static int post_one_recv(struct rxe_rq *rq, const struct ib_recv_wr *ibwr) 2388700e3e7SMoni Shoua { 2398700e3e7SMoni Shoua int err; 2408700e3e7SMoni Shoua int i; 2418700e3e7SMoni Shoua u32 length; 2428700e3e7SMoni Shoua struct rxe_recv_wqe *recv_wqe; 2438700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 2448700e3e7SMoni Shoua 2458700e3e7SMoni Shoua if (unlikely(queue_full(rq->queue))) { 2468700e3e7SMoni Shoua err = -ENOMEM; 2478700e3e7SMoni Shoua goto err1; 2488700e3e7SMoni Shoua } 2498700e3e7SMoni Shoua 2508700e3e7SMoni Shoua if (unlikely(num_sge > rq->max_sge)) { 2518700e3e7SMoni Shoua err = -EINVAL; 2528700e3e7SMoni Shoua goto err1; 2538700e3e7SMoni Shoua } 2548700e3e7SMoni Shoua 2558700e3e7SMoni Shoua length = 0; 2568700e3e7SMoni Shoua for (i = 0; i < num_sge; i++) 2578700e3e7SMoni Shoua length += ibwr->sg_list[i].length; 2588700e3e7SMoni Shoua 2598700e3e7SMoni Shoua recv_wqe = producer_addr(rq->queue); 2608700e3e7SMoni Shoua recv_wqe->wr_id = ibwr->wr_id; 2618700e3e7SMoni Shoua recv_wqe->num_sge = num_sge; 2628700e3e7SMoni Shoua 2638700e3e7SMoni Shoua memcpy(recv_wqe->dma.sge, ibwr->sg_list, 2648700e3e7SMoni Shoua num_sge * sizeof(struct ib_sge)); 2658700e3e7SMoni Shoua 2668700e3e7SMoni Shoua recv_wqe->dma.length = length; 2678700e3e7SMoni Shoua recv_wqe->dma.resid = length; 2688700e3e7SMoni Shoua recv_wqe->dma.num_sge = num_sge; 2698700e3e7SMoni Shoua recv_wqe->dma.cur_sge = 0; 2708700e3e7SMoni Shoua recv_wqe->dma.sge_offset = 0; 2718700e3e7SMoni Shoua 2728700e3e7SMoni Shoua /* make sure all changes to the work queue are written before we 2738700e3e7SMoni Shoua * update the producer pointer 2748700e3e7SMoni Shoua */ 2758700e3e7SMoni Shoua smp_wmb(); 2768700e3e7SMoni Shoua 2778700e3e7SMoni Shoua advance_producer(rq->queue); 2788700e3e7SMoni Shoua return 0; 2798700e3e7SMoni Shoua 2808700e3e7SMoni Shoua err1: 2818700e3e7SMoni Shoua return err; 2828700e3e7SMoni Shoua } 2838700e3e7SMoni Shoua 28468e326deSLeon Romanovsky static int rxe_create_srq(struct ib_srq *ibsrq, struct ib_srq_init_attr *init, 2858700e3e7SMoni Shoua struct ib_udata *udata) 2868700e3e7SMoni Shoua { 2878700e3e7SMoni Shoua int err; 28868e326deSLeon Romanovsky struct rxe_dev *rxe = to_rdev(ibsrq->device); 28968e326deSLeon Romanovsky struct rxe_pd *pd = to_rpd(ibsrq->pd); 29068e326deSLeon Romanovsky struct rxe_srq *srq = to_rsrq(ibsrq); 2910c43ab37SJason Gunthorpe struct rxe_create_srq_resp __user *uresp = NULL; 2920c43ab37SJason Gunthorpe 2930c43ab37SJason Gunthorpe if (udata) { 2940c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 29568e326deSLeon Romanovsky return -EINVAL; 2960c43ab37SJason Gunthorpe uresp = udata->outbuf; 2970c43ab37SJason Gunthorpe } 2988700e3e7SMoni Shoua 2998700e3e7SMoni Shoua err = rxe_srq_chk_attr(rxe, NULL, &init->attr, IB_SRQ_INIT_MASK); 3008700e3e7SMoni Shoua if (err) 3018700e3e7SMoni Shoua goto err1; 3028700e3e7SMoni Shoua 30368e326deSLeon Romanovsky err = rxe_add_to_pool(&rxe->srq_pool, &srq->pelem); 30468e326deSLeon Romanovsky if (err) 3058700e3e7SMoni Shoua goto err1; 3068700e3e7SMoni Shoua 3078700e3e7SMoni Shoua rxe_add_ref(pd); 3088700e3e7SMoni Shoua srq->pd = pd; 3098700e3e7SMoni Shoua 310ff23dfa1SShamir Rabinovitch err = rxe_srq_from_init(rxe, srq, init, udata, uresp); 3118700e3e7SMoni Shoua if (err) 3128700e3e7SMoni Shoua goto err2; 3138700e3e7SMoni Shoua 31468e326deSLeon Romanovsky return 0; 3158700e3e7SMoni Shoua 3168700e3e7SMoni Shoua err2: 3178700e3e7SMoni Shoua rxe_drop_ref(pd); 3188700e3e7SMoni Shoua rxe_drop_ref(srq); 3198700e3e7SMoni Shoua err1: 32068e326deSLeon Romanovsky return err; 3218700e3e7SMoni Shoua } 3228700e3e7SMoni Shoua 3238700e3e7SMoni Shoua static int rxe_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, 3248700e3e7SMoni Shoua enum ib_srq_attr_mask mask, 3258700e3e7SMoni Shoua struct ib_udata *udata) 3268700e3e7SMoni Shoua { 3278700e3e7SMoni Shoua int err; 3288700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3298700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibsrq->device); 3300c43ab37SJason Gunthorpe struct rxe_modify_srq_cmd ucmd = {}; 3310c43ab37SJason Gunthorpe 3320c43ab37SJason Gunthorpe if (udata) { 3330c43ab37SJason Gunthorpe if (udata->inlen < sizeof(ucmd)) 3340c43ab37SJason Gunthorpe return -EINVAL; 3350c43ab37SJason Gunthorpe 3360c43ab37SJason Gunthorpe err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)); 3370c43ab37SJason Gunthorpe if (err) 3380c43ab37SJason Gunthorpe return err; 3390c43ab37SJason Gunthorpe } 3408700e3e7SMoni Shoua 3418700e3e7SMoni Shoua err = rxe_srq_chk_attr(rxe, srq, attr, mask); 3428700e3e7SMoni Shoua if (err) 3438700e3e7SMoni Shoua goto err1; 3448700e3e7SMoni Shoua 345ff23dfa1SShamir Rabinovitch err = rxe_srq_from_attr(rxe, srq, attr, mask, &ucmd, udata); 3468700e3e7SMoni Shoua if (err) 3478700e3e7SMoni Shoua goto err1; 3488700e3e7SMoni Shoua 3498700e3e7SMoni Shoua return 0; 3508700e3e7SMoni Shoua 3518700e3e7SMoni Shoua err1: 3528700e3e7SMoni Shoua return err; 3538700e3e7SMoni Shoua } 3548700e3e7SMoni Shoua 3558700e3e7SMoni Shoua static int rxe_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr) 3568700e3e7SMoni Shoua { 3578700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3588700e3e7SMoni Shoua 3598700e3e7SMoni Shoua if (srq->error) 3608700e3e7SMoni Shoua return -EINVAL; 3618700e3e7SMoni Shoua 3628700e3e7SMoni Shoua attr->max_wr = srq->rq.queue->buf->index_mask; 3638700e3e7SMoni Shoua attr->max_sge = srq->rq.max_sge; 3648700e3e7SMoni Shoua attr->srq_limit = srq->limit; 3658700e3e7SMoni Shoua return 0; 3668700e3e7SMoni Shoua } 3678700e3e7SMoni Shoua 36868e326deSLeon Romanovsky static void rxe_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata) 3698700e3e7SMoni Shoua { 3708700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3718700e3e7SMoni Shoua 3728700e3e7SMoni Shoua if (srq->rq.queue) 3738700e3e7SMoni Shoua rxe_queue_cleanup(srq->rq.queue); 3748700e3e7SMoni Shoua 3758700e3e7SMoni Shoua rxe_drop_ref(srq->pd); 3768700e3e7SMoni Shoua rxe_drop_ref(srq); 3778700e3e7SMoni Shoua } 3788700e3e7SMoni Shoua 379d34ac5cdSBart Van Assche static int rxe_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr, 380d34ac5cdSBart Van Assche const struct ib_recv_wr **bad_wr) 3818700e3e7SMoni Shoua { 3828700e3e7SMoni Shoua int err = 0; 3838700e3e7SMoni Shoua unsigned long flags; 3848700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3858700e3e7SMoni Shoua 3868700e3e7SMoni Shoua spin_lock_irqsave(&srq->rq.producer_lock, flags); 3878700e3e7SMoni Shoua 3888700e3e7SMoni Shoua while (wr) { 3898700e3e7SMoni Shoua err = post_one_recv(&srq->rq, wr); 3908700e3e7SMoni Shoua if (unlikely(err)) 3918700e3e7SMoni Shoua break; 3928700e3e7SMoni Shoua wr = wr->next; 3938700e3e7SMoni Shoua } 3948700e3e7SMoni Shoua 3958700e3e7SMoni Shoua spin_unlock_irqrestore(&srq->rq.producer_lock, flags); 3968700e3e7SMoni Shoua 3978700e3e7SMoni Shoua if (err) 3988700e3e7SMoni Shoua *bad_wr = wr; 3998700e3e7SMoni Shoua 4008700e3e7SMoni Shoua return err; 4018700e3e7SMoni Shoua } 4028700e3e7SMoni Shoua 4038700e3e7SMoni Shoua static struct ib_qp *rxe_create_qp(struct ib_pd *ibpd, 4048700e3e7SMoni Shoua struct ib_qp_init_attr *init, 4058700e3e7SMoni Shoua struct ib_udata *udata) 4068700e3e7SMoni Shoua { 4078700e3e7SMoni Shoua int err; 4088700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 4098700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 4108700e3e7SMoni Shoua struct rxe_qp *qp; 4110c43ab37SJason Gunthorpe struct rxe_create_qp_resp __user *uresp = NULL; 4120c43ab37SJason Gunthorpe 4130c43ab37SJason Gunthorpe if (udata) { 4140c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 4150c43ab37SJason Gunthorpe return ERR_PTR(-EINVAL); 4160c43ab37SJason Gunthorpe uresp = udata->outbuf; 4170c43ab37SJason Gunthorpe } 4188700e3e7SMoni Shoua 4198700e3e7SMoni Shoua err = rxe_qp_chk_init(rxe, init); 4208700e3e7SMoni Shoua if (err) 4218700e3e7SMoni Shoua goto err1; 4228700e3e7SMoni Shoua 4238700e3e7SMoni Shoua qp = rxe_alloc(&rxe->qp_pool); 4248700e3e7SMoni Shoua if (!qp) { 4258700e3e7SMoni Shoua err = -ENOMEM; 4268700e3e7SMoni Shoua goto err1; 4278700e3e7SMoni Shoua } 4288700e3e7SMoni Shoua 4298700e3e7SMoni Shoua if (udata) { 4308700e3e7SMoni Shoua if (udata->inlen) { 4318700e3e7SMoni Shoua err = -EINVAL; 4325b9ea16cSAndrew Boyer goto err2; 4338700e3e7SMoni Shoua } 4348700e3e7SMoni Shoua qp->is_user = 1; 4358700e3e7SMoni Shoua } 4368700e3e7SMoni Shoua 4378700e3e7SMoni Shoua rxe_add_index(qp); 4388700e3e7SMoni Shoua 439e00b64f7SShamir Rabinovitch err = rxe_qp_from_init(rxe, qp, pd, init, uresp, ibpd, udata); 4408700e3e7SMoni Shoua if (err) 4415b9ea16cSAndrew Boyer goto err3; 4428700e3e7SMoni Shoua 4438700e3e7SMoni Shoua return &qp->ibqp; 4448700e3e7SMoni Shoua 4455b9ea16cSAndrew Boyer err3: 4468700e3e7SMoni Shoua rxe_drop_index(qp); 4475b9ea16cSAndrew Boyer err2: 4488700e3e7SMoni Shoua rxe_drop_ref(qp); 4498700e3e7SMoni Shoua err1: 4508700e3e7SMoni Shoua return ERR_PTR(err); 4518700e3e7SMoni Shoua } 4528700e3e7SMoni Shoua 4538700e3e7SMoni Shoua static int rxe_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 4548700e3e7SMoni Shoua int mask, struct ib_udata *udata) 4558700e3e7SMoni Shoua { 4568700e3e7SMoni Shoua int err; 4578700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 4588700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 4598700e3e7SMoni Shoua 4608700e3e7SMoni Shoua err = rxe_qp_chk_attr(rxe, qp, attr, mask); 4618700e3e7SMoni Shoua if (err) 4628700e3e7SMoni Shoua goto err1; 4638700e3e7SMoni Shoua 4648700e3e7SMoni Shoua err = rxe_qp_from_attr(qp, attr, mask, udata); 4658700e3e7SMoni Shoua if (err) 4668700e3e7SMoni Shoua goto err1; 4678700e3e7SMoni Shoua 4688700e3e7SMoni Shoua return 0; 4698700e3e7SMoni Shoua 4708700e3e7SMoni Shoua err1: 4718700e3e7SMoni Shoua return err; 4728700e3e7SMoni Shoua } 4738700e3e7SMoni Shoua 4748700e3e7SMoni Shoua static int rxe_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 4758700e3e7SMoni Shoua int mask, struct ib_qp_init_attr *init) 4768700e3e7SMoni Shoua { 4778700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 4788700e3e7SMoni Shoua 4798700e3e7SMoni Shoua rxe_qp_to_init(qp, init); 4808700e3e7SMoni Shoua rxe_qp_to_attr(qp, attr, mask); 4818700e3e7SMoni Shoua 4828700e3e7SMoni Shoua return 0; 4838700e3e7SMoni Shoua } 4848700e3e7SMoni Shoua 485c4367a26SShamir Rabinovitch static int rxe_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata) 4868700e3e7SMoni Shoua { 4878700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 4888700e3e7SMoni Shoua 4898700e3e7SMoni Shoua rxe_qp_destroy(qp); 4908700e3e7SMoni Shoua rxe_drop_index(qp); 4918700e3e7SMoni Shoua rxe_drop_ref(qp); 4928700e3e7SMoni Shoua return 0; 4938700e3e7SMoni Shoua } 4948700e3e7SMoni Shoua 495f696bf6dSBart Van Assche static int validate_send_wr(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 4968700e3e7SMoni Shoua unsigned int mask, unsigned int length) 4978700e3e7SMoni Shoua { 4988700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 4998700e3e7SMoni Shoua struct rxe_sq *sq = &qp->sq; 5008700e3e7SMoni Shoua 5018700e3e7SMoni Shoua if (unlikely(num_sge > sq->max_sge)) 5028700e3e7SMoni Shoua goto err1; 5038700e3e7SMoni Shoua 5048700e3e7SMoni Shoua if (unlikely(mask & WR_ATOMIC_MASK)) { 5058700e3e7SMoni Shoua if (length < 8) 5068700e3e7SMoni Shoua goto err1; 5078700e3e7SMoni Shoua 5088700e3e7SMoni Shoua if (atomic_wr(ibwr)->remote_addr & 0x7) 5098700e3e7SMoni Shoua goto err1; 5108700e3e7SMoni Shoua } 5118700e3e7SMoni Shoua 5128700e3e7SMoni Shoua if (unlikely((ibwr->send_flags & IB_SEND_INLINE) && 5138700e3e7SMoni Shoua (length > sq->max_inline))) 5148700e3e7SMoni Shoua goto err1; 5158700e3e7SMoni Shoua 5168700e3e7SMoni Shoua return 0; 5178700e3e7SMoni Shoua 5188700e3e7SMoni Shoua err1: 5198700e3e7SMoni Shoua return -EINVAL; 5208700e3e7SMoni Shoua } 5218700e3e7SMoni Shoua 5228700e3e7SMoni Shoua static void init_send_wr(struct rxe_qp *qp, struct rxe_send_wr *wr, 523f696bf6dSBart Van Assche const struct ib_send_wr *ibwr) 5248700e3e7SMoni Shoua { 5258700e3e7SMoni Shoua wr->wr_id = ibwr->wr_id; 5268700e3e7SMoni Shoua wr->num_sge = ibwr->num_sge; 5278700e3e7SMoni Shoua wr->opcode = ibwr->opcode; 5288700e3e7SMoni Shoua wr->send_flags = ibwr->send_flags; 5298700e3e7SMoni Shoua 5308700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_UD || 5318700e3e7SMoni Shoua qp_type(qp) == IB_QPT_SMI || 5328700e3e7SMoni Shoua qp_type(qp) == IB_QPT_GSI) { 5338700e3e7SMoni Shoua wr->wr.ud.remote_qpn = ud_wr(ibwr)->remote_qpn; 5348700e3e7SMoni Shoua wr->wr.ud.remote_qkey = ud_wr(ibwr)->remote_qkey; 5358700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_GSI) 5368700e3e7SMoni Shoua wr->wr.ud.pkey_index = ud_wr(ibwr)->pkey_index; 5378700e3e7SMoni Shoua if (wr->opcode == IB_WR_SEND_WITH_IMM) 5388700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 5398700e3e7SMoni Shoua } else { 5408700e3e7SMoni Shoua switch (wr->opcode) { 5418700e3e7SMoni Shoua case IB_WR_RDMA_WRITE_WITH_IMM: 5428700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 543df561f66SGustavo A. R. Silva fallthrough; 5448700e3e7SMoni Shoua case IB_WR_RDMA_READ: 5458700e3e7SMoni Shoua case IB_WR_RDMA_WRITE: 5468700e3e7SMoni Shoua wr->wr.rdma.remote_addr = rdma_wr(ibwr)->remote_addr; 5478700e3e7SMoni Shoua wr->wr.rdma.rkey = rdma_wr(ibwr)->rkey; 5488700e3e7SMoni Shoua break; 5498700e3e7SMoni Shoua case IB_WR_SEND_WITH_IMM: 5508700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 5518700e3e7SMoni Shoua break; 5528700e3e7SMoni Shoua case IB_WR_SEND_WITH_INV: 5538700e3e7SMoni Shoua wr->ex.invalidate_rkey = ibwr->ex.invalidate_rkey; 5548700e3e7SMoni Shoua break; 5558700e3e7SMoni Shoua case IB_WR_ATOMIC_CMP_AND_SWP: 5568700e3e7SMoni Shoua case IB_WR_ATOMIC_FETCH_AND_ADD: 5578700e3e7SMoni Shoua wr->wr.atomic.remote_addr = 5588700e3e7SMoni Shoua atomic_wr(ibwr)->remote_addr; 5598700e3e7SMoni Shoua wr->wr.atomic.compare_add = 5608700e3e7SMoni Shoua atomic_wr(ibwr)->compare_add; 5618700e3e7SMoni Shoua wr->wr.atomic.swap = atomic_wr(ibwr)->swap; 5628700e3e7SMoni Shoua wr->wr.atomic.rkey = atomic_wr(ibwr)->rkey; 5638700e3e7SMoni Shoua break; 5648700e3e7SMoni Shoua case IB_WR_LOCAL_INV: 5658700e3e7SMoni Shoua wr->ex.invalidate_rkey = ibwr->ex.invalidate_rkey; 5668700e3e7SMoni Shoua break; 5678700e3e7SMoni Shoua case IB_WR_REG_MR: 5688700e3e7SMoni Shoua wr->wr.reg.mr = reg_wr(ibwr)->mr; 5698700e3e7SMoni Shoua wr->wr.reg.key = reg_wr(ibwr)->key; 5708700e3e7SMoni Shoua wr->wr.reg.access = reg_wr(ibwr)->access; 5718700e3e7SMoni Shoua break; 5728700e3e7SMoni Shoua default: 5738700e3e7SMoni Shoua break; 5748700e3e7SMoni Shoua } 5758700e3e7SMoni Shoua } 5768700e3e7SMoni Shoua } 5778700e3e7SMoni Shoua 578f696bf6dSBart Van Assche static int init_send_wqe(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 5798700e3e7SMoni Shoua unsigned int mask, unsigned int length, 5808700e3e7SMoni Shoua struct rxe_send_wqe *wqe) 5818700e3e7SMoni Shoua { 5828700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 5838700e3e7SMoni Shoua struct ib_sge *sge; 5848700e3e7SMoni Shoua int i; 5858700e3e7SMoni Shoua u8 *p; 5868700e3e7SMoni Shoua 5878700e3e7SMoni Shoua init_send_wr(qp, &wqe->wr, ibwr); 5888700e3e7SMoni Shoua 5898700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_UD || 5908700e3e7SMoni Shoua qp_type(qp) == IB_QPT_SMI || 5918700e3e7SMoni Shoua qp_type(qp) == IB_QPT_GSI) 5928700e3e7SMoni Shoua memcpy(&wqe->av, &to_rah(ud_wr(ibwr)->ah)->av, sizeof(wqe->av)); 5938700e3e7SMoni Shoua 5948700e3e7SMoni Shoua if (unlikely(ibwr->send_flags & IB_SEND_INLINE)) { 5958700e3e7SMoni Shoua p = wqe->dma.inline_data; 5968700e3e7SMoni Shoua 5978700e3e7SMoni Shoua sge = ibwr->sg_list; 5988700e3e7SMoni Shoua for (i = 0; i < num_sge; i++, sge++) { 5998700e3e7SMoni Shoua memcpy(p, (void *)(uintptr_t)sge->addr, 6008700e3e7SMoni Shoua sge->length); 6018700e3e7SMoni Shoua 6028700e3e7SMoni Shoua p += sge->length; 6038700e3e7SMoni Shoua } 6048700e3e7SMoni Shoua } else if (mask & WR_REG_MASK) { 6058700e3e7SMoni Shoua wqe->mask = mask; 6068700e3e7SMoni Shoua wqe->state = wqe_state_posted; 6078700e3e7SMoni Shoua return 0; 6088700e3e7SMoni Shoua } else 6098700e3e7SMoni Shoua memcpy(wqe->dma.sge, ibwr->sg_list, 6108700e3e7SMoni Shoua num_sge * sizeof(struct ib_sge)); 6118700e3e7SMoni Shoua 612a6544a62SBart Van Assche wqe->iova = mask & WR_ATOMIC_MASK ? atomic_wr(ibwr)->remote_addr : 613a6544a62SBart Van Assche mask & WR_READ_OR_WRITE_MASK ? rdma_wr(ibwr)->remote_addr : 0; 6148700e3e7SMoni Shoua wqe->mask = mask; 6158700e3e7SMoni Shoua wqe->dma.length = length; 6168700e3e7SMoni Shoua wqe->dma.resid = length; 6178700e3e7SMoni Shoua wqe->dma.num_sge = num_sge; 6188700e3e7SMoni Shoua wqe->dma.cur_sge = 0; 6198700e3e7SMoni Shoua wqe->dma.sge_offset = 0; 6208700e3e7SMoni Shoua wqe->state = wqe_state_posted; 6218700e3e7SMoni Shoua wqe->ssn = atomic_add_return(1, &qp->ssn); 6228700e3e7SMoni Shoua 6238700e3e7SMoni Shoua return 0; 6248700e3e7SMoni Shoua } 6258700e3e7SMoni Shoua 626f696bf6dSBart Van Assche static int post_one_send(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 627e404f945SParav Pandit unsigned int mask, u32 length) 6288700e3e7SMoni Shoua { 6298700e3e7SMoni Shoua int err; 6308700e3e7SMoni Shoua struct rxe_sq *sq = &qp->sq; 6318700e3e7SMoni Shoua struct rxe_send_wqe *send_wqe; 6328700e3e7SMoni Shoua unsigned long flags; 6338700e3e7SMoni Shoua 6348700e3e7SMoni Shoua err = validate_send_wr(qp, ibwr, mask, length); 6358700e3e7SMoni Shoua if (err) 6368700e3e7SMoni Shoua return err; 6378700e3e7SMoni Shoua 6388700e3e7SMoni Shoua spin_lock_irqsave(&qp->sq.sq_lock, flags); 6398700e3e7SMoni Shoua 6408700e3e7SMoni Shoua if (unlikely(queue_full(sq->queue))) { 6418700e3e7SMoni Shoua err = -ENOMEM; 6428700e3e7SMoni Shoua goto err1; 6438700e3e7SMoni Shoua } 6448700e3e7SMoni Shoua 6458700e3e7SMoni Shoua send_wqe = producer_addr(sq->queue); 6468700e3e7SMoni Shoua 6478700e3e7SMoni Shoua err = init_send_wqe(qp, ibwr, mask, length, send_wqe); 6488700e3e7SMoni Shoua if (unlikely(err)) 6498700e3e7SMoni Shoua goto err1; 6508700e3e7SMoni Shoua 6518700e3e7SMoni Shoua /* 6528700e3e7SMoni Shoua * make sure all changes to the work queue are 6538700e3e7SMoni Shoua * written before we update the producer pointer 6548700e3e7SMoni Shoua */ 6558700e3e7SMoni Shoua smp_wmb(); 6568700e3e7SMoni Shoua 6578700e3e7SMoni Shoua advance_producer(sq->queue); 6588700e3e7SMoni Shoua spin_unlock_irqrestore(&qp->sq.sq_lock, flags); 6598700e3e7SMoni Shoua 6608700e3e7SMoni Shoua return 0; 6618700e3e7SMoni Shoua 6628700e3e7SMoni Shoua err1: 6638700e3e7SMoni Shoua spin_unlock_irqrestore(&qp->sq.sq_lock, flags); 6648700e3e7SMoni Shoua return err; 6658700e3e7SMoni Shoua } 6668700e3e7SMoni Shoua 667d34ac5cdSBart Van Assche static int rxe_post_send_kernel(struct rxe_qp *qp, const struct ib_send_wr *wr, 668d34ac5cdSBart Van Assche const struct ib_send_wr **bad_wr) 6698700e3e7SMoni Shoua { 6708700e3e7SMoni Shoua int err = 0; 6718700e3e7SMoni Shoua unsigned int mask; 6728700e3e7SMoni Shoua unsigned int length = 0; 6738700e3e7SMoni Shoua int i; 6745f0b2a60SMikhail Malygin struct ib_send_wr *next; 6758700e3e7SMoni Shoua 6768700e3e7SMoni Shoua while (wr) { 6778700e3e7SMoni Shoua mask = wr_opcode_mask(wr->opcode, qp); 6788700e3e7SMoni Shoua if (unlikely(!mask)) { 6798700e3e7SMoni Shoua err = -EINVAL; 6808700e3e7SMoni Shoua *bad_wr = wr; 6818700e3e7SMoni Shoua break; 6828700e3e7SMoni Shoua } 6838700e3e7SMoni Shoua 6848700e3e7SMoni Shoua if (unlikely((wr->send_flags & IB_SEND_INLINE) && 6858700e3e7SMoni Shoua !(mask & WR_INLINE_MASK))) { 6868700e3e7SMoni Shoua err = -EINVAL; 6878700e3e7SMoni Shoua *bad_wr = wr; 6888700e3e7SMoni Shoua break; 6898700e3e7SMoni Shoua } 6908700e3e7SMoni Shoua 6915f0b2a60SMikhail Malygin next = wr->next; 6925f0b2a60SMikhail Malygin 6938700e3e7SMoni Shoua length = 0; 6948700e3e7SMoni Shoua for (i = 0; i < wr->num_sge; i++) 6958700e3e7SMoni Shoua length += wr->sg_list[i].length; 6968700e3e7SMoni Shoua 6978700e3e7SMoni Shoua err = post_one_send(qp, wr, mask, length); 6988700e3e7SMoni Shoua 6998700e3e7SMoni Shoua if (err) { 7008700e3e7SMoni Shoua *bad_wr = wr; 7018700e3e7SMoni Shoua break; 7028700e3e7SMoni Shoua } 7035f0b2a60SMikhail Malygin wr = next; 7048700e3e7SMoni Shoua } 7058700e3e7SMoni Shoua 7061661d3b0SAlexandru Moise rxe_run_task(&qp->req.task, 1); 7076f301e06SBart Van Assche if (unlikely(qp->req.state == QP_STATE_ERROR)) 7086f301e06SBart Van Assche rxe_run_task(&qp->comp.task, 1); 7098700e3e7SMoni Shoua 7108700e3e7SMoni Shoua return err; 7118700e3e7SMoni Shoua } 7128700e3e7SMoni Shoua 713d34ac5cdSBart Van Assche static int rxe_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, 714d34ac5cdSBart Van Assche const struct ib_send_wr **bad_wr) 715063af595SParav Pandit { 716063af595SParav Pandit struct rxe_qp *qp = to_rqp(ibqp); 717063af595SParav Pandit 718063af595SParav Pandit if (unlikely(!qp->valid)) { 719063af595SParav Pandit *bad_wr = wr; 720063af595SParav Pandit return -EINVAL; 721063af595SParav Pandit } 722063af595SParav Pandit 723063af595SParav Pandit if (unlikely(qp->req.state < QP_STATE_READY)) { 724063af595SParav Pandit *bad_wr = wr; 725063af595SParav Pandit return -EINVAL; 726063af595SParav Pandit } 727063af595SParav Pandit 728063af595SParav Pandit if (qp->is_user) { 729063af595SParav Pandit /* Utilize process context to do protocol processing */ 730063af595SParav Pandit rxe_run_task(&qp->req.task, 0); 731063af595SParav Pandit return 0; 732063af595SParav Pandit } else 733063af595SParav Pandit return rxe_post_send_kernel(qp, wr, bad_wr); 734063af595SParav Pandit } 735063af595SParav Pandit 736d34ac5cdSBart Van Assche static int rxe_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr, 737d34ac5cdSBart Van Assche const struct ib_recv_wr **bad_wr) 7388700e3e7SMoni Shoua { 7398700e3e7SMoni Shoua int err = 0; 7408700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 7418700e3e7SMoni Shoua struct rxe_rq *rq = &qp->rq; 7428700e3e7SMoni Shoua unsigned long flags; 7438700e3e7SMoni Shoua 7448700e3e7SMoni Shoua if (unlikely((qp_state(qp) < IB_QPS_INIT) || !qp->valid)) { 7458700e3e7SMoni Shoua *bad_wr = wr; 7468700e3e7SMoni Shoua err = -EINVAL; 7478700e3e7SMoni Shoua goto err1; 7488700e3e7SMoni Shoua } 7498700e3e7SMoni Shoua 7508700e3e7SMoni Shoua if (unlikely(qp->srq)) { 7518700e3e7SMoni Shoua *bad_wr = wr; 7528700e3e7SMoni Shoua err = -EINVAL; 7538700e3e7SMoni Shoua goto err1; 7548700e3e7SMoni Shoua } 7558700e3e7SMoni Shoua 7568700e3e7SMoni Shoua spin_lock_irqsave(&rq->producer_lock, flags); 7578700e3e7SMoni Shoua 7588700e3e7SMoni Shoua while (wr) { 7598700e3e7SMoni Shoua err = post_one_recv(rq, wr); 7608700e3e7SMoni Shoua if (unlikely(err)) { 7618700e3e7SMoni Shoua *bad_wr = wr; 7628700e3e7SMoni Shoua break; 7638700e3e7SMoni Shoua } 7648700e3e7SMoni Shoua wr = wr->next; 7658700e3e7SMoni Shoua } 7668700e3e7SMoni Shoua 7678700e3e7SMoni Shoua spin_unlock_irqrestore(&rq->producer_lock, flags); 7688700e3e7SMoni Shoua 76912171971SVijay Immanuel if (qp->resp.state == QP_STATE_ERROR) 77012171971SVijay Immanuel rxe_run_task(&qp->resp.task, 1); 77112171971SVijay Immanuel 7728700e3e7SMoni Shoua err1: 7738700e3e7SMoni Shoua return err; 7748700e3e7SMoni Shoua } 7758700e3e7SMoni Shoua 776e39afe3dSLeon Romanovsky static int rxe_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, 7778700e3e7SMoni Shoua struct ib_udata *udata) 7788700e3e7SMoni Shoua { 7798700e3e7SMoni Shoua int err; 780e39afe3dSLeon Romanovsky struct ib_device *dev = ibcq->device; 7818700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 782e39afe3dSLeon Romanovsky struct rxe_cq *cq = to_rcq(ibcq); 7830c43ab37SJason Gunthorpe struct rxe_create_cq_resp __user *uresp = NULL; 7840c43ab37SJason Gunthorpe 7850c43ab37SJason Gunthorpe if (udata) { 7860c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 787e39afe3dSLeon Romanovsky return -EINVAL; 7880c43ab37SJason Gunthorpe uresp = udata->outbuf; 7890c43ab37SJason Gunthorpe } 7908700e3e7SMoni Shoua 7918700e3e7SMoni Shoua if (attr->flags) 792e39afe3dSLeon Romanovsky return -EINVAL; 7938700e3e7SMoni Shoua 794b92ec0feSJason Gunthorpe err = rxe_cq_chk_attr(rxe, NULL, attr->cqe, attr->comp_vector); 7958700e3e7SMoni Shoua if (err) 796e39afe3dSLeon Romanovsky return err; 7978700e3e7SMoni Shoua 798ff23dfa1SShamir Rabinovitch err = rxe_cq_from_init(rxe, cq, attr->cqe, attr->comp_vector, udata, 799ff23dfa1SShamir Rabinovitch uresp); 8008700e3e7SMoni Shoua if (err) 801e39afe3dSLeon Romanovsky return err; 8028700e3e7SMoni Shoua 803e39afe3dSLeon Romanovsky return rxe_add_to_pool(&rxe->cq_pool, &cq->pelem); 8048700e3e7SMoni Shoua } 8058700e3e7SMoni Shoua 806a52c8e24SLeon Romanovsky static void rxe_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata) 8078700e3e7SMoni Shoua { 8088700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8098700e3e7SMoni Shoua 810bfc3ae05SAndrew Boyer rxe_cq_disable(cq); 811bfc3ae05SAndrew Boyer 8128700e3e7SMoni Shoua rxe_drop_ref(cq); 8138700e3e7SMoni Shoua } 8148700e3e7SMoni Shoua 8158700e3e7SMoni Shoua static int rxe_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) 8168700e3e7SMoni Shoua { 8178700e3e7SMoni Shoua int err; 8188700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8198700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibcq->device); 8200c43ab37SJason Gunthorpe struct rxe_resize_cq_resp __user *uresp = NULL; 8210c43ab37SJason Gunthorpe 8220c43ab37SJason Gunthorpe if (udata) { 8230c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 8240c43ab37SJason Gunthorpe return -EINVAL; 8250c43ab37SJason Gunthorpe uresp = udata->outbuf; 8260c43ab37SJason Gunthorpe } 8278700e3e7SMoni Shoua 828b92ec0feSJason Gunthorpe err = rxe_cq_chk_attr(rxe, cq, cqe, 0); 8298700e3e7SMoni Shoua if (err) 8308700e3e7SMoni Shoua goto err1; 8318700e3e7SMoni Shoua 832ff23dfa1SShamir Rabinovitch err = rxe_cq_resize_queue(cq, cqe, uresp, udata); 8338700e3e7SMoni Shoua if (err) 8348700e3e7SMoni Shoua goto err1; 8358700e3e7SMoni Shoua 8368700e3e7SMoni Shoua return 0; 8378700e3e7SMoni Shoua 8388700e3e7SMoni Shoua err1: 8398700e3e7SMoni Shoua return err; 8408700e3e7SMoni Shoua } 8418700e3e7SMoni Shoua 8428700e3e7SMoni Shoua static int rxe_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) 8438700e3e7SMoni Shoua { 8448700e3e7SMoni Shoua int i; 8458700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8468700e3e7SMoni Shoua struct rxe_cqe *cqe; 8478700e3e7SMoni Shoua unsigned long flags; 8488700e3e7SMoni Shoua 8498700e3e7SMoni Shoua spin_lock_irqsave(&cq->cq_lock, flags); 8508700e3e7SMoni Shoua for (i = 0; i < num_entries; i++) { 8518700e3e7SMoni Shoua cqe = queue_head(cq->queue); 8528700e3e7SMoni Shoua if (!cqe) 8538700e3e7SMoni Shoua break; 8548700e3e7SMoni Shoua 8558700e3e7SMoni Shoua memcpy(wc++, &cqe->ibwc, sizeof(*wc)); 8568700e3e7SMoni Shoua advance_consumer(cq->queue); 8578700e3e7SMoni Shoua } 8588700e3e7SMoni Shoua spin_unlock_irqrestore(&cq->cq_lock, flags); 8598700e3e7SMoni Shoua 8608700e3e7SMoni Shoua return i; 8618700e3e7SMoni Shoua } 8628700e3e7SMoni Shoua 8638700e3e7SMoni Shoua static int rxe_peek_cq(struct ib_cq *ibcq, int wc_cnt) 8648700e3e7SMoni Shoua { 8658700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8668700e3e7SMoni Shoua int count = queue_count(cq->queue); 8678700e3e7SMoni Shoua 8688700e3e7SMoni Shoua return (count > wc_cnt) ? wc_cnt : count; 8698700e3e7SMoni Shoua } 8708700e3e7SMoni Shoua 8718700e3e7SMoni Shoua static int rxe_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) 8728700e3e7SMoni Shoua { 8738700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 874accacb8fSAndrew Boyer unsigned long irq_flags; 875accacb8fSAndrew Boyer int ret = 0; 8768700e3e7SMoni Shoua 877accacb8fSAndrew Boyer spin_lock_irqsave(&cq->cq_lock, irq_flags); 8788700e3e7SMoni Shoua if (cq->notify != IB_CQ_NEXT_COMP) 8798700e3e7SMoni Shoua cq->notify = flags & IB_CQ_SOLICITED_MASK; 8808700e3e7SMoni Shoua 881accacb8fSAndrew Boyer if ((flags & IB_CQ_REPORT_MISSED_EVENTS) && !queue_empty(cq->queue)) 882accacb8fSAndrew Boyer ret = 1; 883accacb8fSAndrew Boyer 884accacb8fSAndrew Boyer spin_unlock_irqrestore(&cq->cq_lock, irq_flags); 885accacb8fSAndrew Boyer 886accacb8fSAndrew Boyer return ret; 8878700e3e7SMoni Shoua } 8888700e3e7SMoni Shoua 8898700e3e7SMoni Shoua static struct ib_mr *rxe_get_dma_mr(struct ib_pd *ibpd, int access) 8908700e3e7SMoni Shoua { 8918700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 8928700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 8938700e3e7SMoni Shoua struct rxe_mem *mr; 8948700e3e7SMoni Shoua 8958700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 896293d8440SKamal Heib if (!mr) 897293d8440SKamal Heib return ERR_PTR(-ENOMEM); 8988700e3e7SMoni Shoua 8998700e3e7SMoni Shoua rxe_add_index(mr); 9008700e3e7SMoni Shoua rxe_add_ref(pd); 901293d8440SKamal Heib rxe_mem_init_dma(pd, access, mr); 9028700e3e7SMoni Shoua 9038700e3e7SMoni Shoua return &mr->ibmr; 9048700e3e7SMoni Shoua } 9058700e3e7SMoni Shoua 9068700e3e7SMoni Shoua static struct ib_mr *rxe_reg_user_mr(struct ib_pd *ibpd, 9078700e3e7SMoni Shoua u64 start, 9088700e3e7SMoni Shoua u64 length, 9098700e3e7SMoni Shoua u64 iova, 9108700e3e7SMoni Shoua int access, struct ib_udata *udata) 9118700e3e7SMoni Shoua { 9128700e3e7SMoni Shoua int err; 9138700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 9148700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 9158700e3e7SMoni Shoua struct rxe_mem *mr; 9168700e3e7SMoni Shoua 9178700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 9188700e3e7SMoni Shoua if (!mr) { 9198700e3e7SMoni Shoua err = -ENOMEM; 9208700e3e7SMoni Shoua goto err2; 9218700e3e7SMoni Shoua } 9228700e3e7SMoni Shoua 9238700e3e7SMoni Shoua rxe_add_index(mr); 9248700e3e7SMoni Shoua 9258700e3e7SMoni Shoua rxe_add_ref(pd); 9268700e3e7SMoni Shoua 927e12ee8ceSZhu Yanjun err = rxe_mem_init_user(pd, start, length, iova, 9288700e3e7SMoni Shoua access, udata, mr); 9298700e3e7SMoni Shoua if (err) 9308700e3e7SMoni Shoua goto err3; 9318700e3e7SMoni Shoua 9328700e3e7SMoni Shoua return &mr->ibmr; 9338700e3e7SMoni Shoua 9348700e3e7SMoni Shoua err3: 9358700e3e7SMoni Shoua rxe_drop_ref(pd); 9368700e3e7SMoni Shoua rxe_drop_index(mr); 9378700e3e7SMoni Shoua rxe_drop_ref(mr); 9388700e3e7SMoni Shoua err2: 9398700e3e7SMoni Shoua return ERR_PTR(err); 9408700e3e7SMoni Shoua } 9418700e3e7SMoni Shoua 942c4367a26SShamir Rabinovitch static int rxe_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata) 9438700e3e7SMoni Shoua { 9448700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 9458700e3e7SMoni Shoua 9468700e3e7SMoni Shoua mr->state = RXE_MEM_STATE_ZOMBIE; 9478700e3e7SMoni Shoua rxe_drop_ref(mr->pd); 9488700e3e7SMoni Shoua rxe_drop_index(mr); 9498700e3e7SMoni Shoua rxe_drop_ref(mr); 9508700e3e7SMoni Shoua return 0; 9518700e3e7SMoni Shoua } 9528700e3e7SMoni Shoua 953c4367a26SShamir Rabinovitch static struct ib_mr *rxe_alloc_mr(struct ib_pd *ibpd, enum ib_mr_type mr_type, 95442a3b153SGal Pressman u32 max_num_sg) 9558700e3e7SMoni Shoua { 9568700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 9578700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 9588700e3e7SMoni Shoua struct rxe_mem *mr; 9598700e3e7SMoni Shoua int err; 9608700e3e7SMoni Shoua 9618700e3e7SMoni Shoua if (mr_type != IB_MR_TYPE_MEM_REG) 9628700e3e7SMoni Shoua return ERR_PTR(-EINVAL); 9638700e3e7SMoni Shoua 9648700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 9658700e3e7SMoni Shoua if (!mr) { 9668700e3e7SMoni Shoua err = -ENOMEM; 9678700e3e7SMoni Shoua goto err1; 9688700e3e7SMoni Shoua } 9698700e3e7SMoni Shoua 9708700e3e7SMoni Shoua rxe_add_index(mr); 9718700e3e7SMoni Shoua 9728700e3e7SMoni Shoua rxe_add_ref(pd); 9738700e3e7SMoni Shoua 974e12ee8ceSZhu Yanjun err = rxe_mem_init_fast(pd, max_num_sg, mr); 9758700e3e7SMoni Shoua if (err) 9768700e3e7SMoni Shoua goto err2; 9778700e3e7SMoni Shoua 9788700e3e7SMoni Shoua return &mr->ibmr; 9798700e3e7SMoni Shoua 9808700e3e7SMoni Shoua err2: 9818700e3e7SMoni Shoua rxe_drop_ref(pd); 9828700e3e7SMoni Shoua rxe_drop_index(mr); 9838700e3e7SMoni Shoua rxe_drop_ref(mr); 9848700e3e7SMoni Shoua err1: 9858700e3e7SMoni Shoua return ERR_PTR(err); 9868700e3e7SMoni Shoua } 9878700e3e7SMoni Shoua 9888700e3e7SMoni Shoua static int rxe_set_page(struct ib_mr *ibmr, u64 addr) 9898700e3e7SMoni Shoua { 9908700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 9918700e3e7SMoni Shoua struct rxe_map *map; 9928700e3e7SMoni Shoua struct rxe_phys_buf *buf; 9938700e3e7SMoni Shoua 9948700e3e7SMoni Shoua if (unlikely(mr->nbuf == mr->num_buf)) 9958700e3e7SMoni Shoua return -ENOMEM; 9968700e3e7SMoni Shoua 9978700e3e7SMoni Shoua map = mr->map[mr->nbuf / RXE_BUF_PER_MAP]; 9988700e3e7SMoni Shoua buf = &map->buf[mr->nbuf % RXE_BUF_PER_MAP]; 9998700e3e7SMoni Shoua 10008700e3e7SMoni Shoua buf->addr = addr; 10018700e3e7SMoni Shoua buf->size = ibmr->page_size; 10028700e3e7SMoni Shoua mr->nbuf++; 10038700e3e7SMoni Shoua 10048700e3e7SMoni Shoua return 0; 10058700e3e7SMoni Shoua } 10068700e3e7SMoni Shoua 1007e404f945SParav Pandit static int rxe_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, 1008e404f945SParav Pandit int sg_nents, unsigned int *sg_offset) 10098700e3e7SMoni Shoua { 10108700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 10118700e3e7SMoni Shoua int n; 10128700e3e7SMoni Shoua 10138700e3e7SMoni Shoua mr->nbuf = 0; 10148700e3e7SMoni Shoua 10158700e3e7SMoni Shoua n = ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, rxe_set_page); 10168700e3e7SMoni Shoua 10178700e3e7SMoni Shoua mr->va = ibmr->iova; 10188700e3e7SMoni Shoua mr->iova = ibmr->iova; 10198700e3e7SMoni Shoua mr->length = ibmr->length; 10208700e3e7SMoni Shoua mr->page_shift = ilog2(ibmr->page_size); 10218700e3e7SMoni Shoua mr->page_mask = ibmr->page_size - 1; 10228700e3e7SMoni Shoua mr->offset = mr->iova & mr->page_mask; 10238700e3e7SMoni Shoua 10248700e3e7SMoni Shoua return n; 10258700e3e7SMoni Shoua } 10268700e3e7SMoni Shoua 10278700e3e7SMoni Shoua static int rxe_attach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid) 10288700e3e7SMoni Shoua { 10298700e3e7SMoni Shoua int err; 10308700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 10318700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 10328700e3e7SMoni Shoua struct rxe_mc_grp *grp; 10338700e3e7SMoni Shoua 10348700e3e7SMoni Shoua /* takes a ref on grp if successful */ 10358700e3e7SMoni Shoua err = rxe_mcast_get_grp(rxe, mgid, &grp); 10368700e3e7SMoni Shoua if (err) 10378700e3e7SMoni Shoua return err; 10388700e3e7SMoni Shoua 10398700e3e7SMoni Shoua err = rxe_mcast_add_grp_elem(rxe, qp, grp); 10408700e3e7SMoni Shoua 10418700e3e7SMoni Shoua rxe_drop_ref(grp); 10428700e3e7SMoni Shoua return err; 10438700e3e7SMoni Shoua } 10448700e3e7SMoni Shoua 10458700e3e7SMoni Shoua static int rxe_detach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid) 10468700e3e7SMoni Shoua { 10478700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 10488700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 10498700e3e7SMoni Shoua 10508700e3e7SMoni Shoua return rxe_mcast_drop_grp_elem(rxe, qp, mgid); 10518700e3e7SMoni Shoua } 10528700e3e7SMoni Shoua 1053c05d2664SKamal Heib static ssize_t parent_show(struct device *device, 10548700e3e7SMoni Shoua struct device_attribute *attr, char *buf) 10558700e3e7SMoni Shoua { 105654747231SParav Pandit struct rxe_dev *rxe = 105754747231SParav Pandit rdma_device_to_drv_device(device, struct rxe_dev, ib_dev); 10588700e3e7SMoni Shoua 1059839f5ac0SBart Van Assche return snprintf(buf, 16, "%s\n", rxe_parent_name(rxe, 1)); 10608700e3e7SMoni Shoua } 10618700e3e7SMoni Shoua 1062c05d2664SKamal Heib static DEVICE_ATTR_RO(parent); 10638700e3e7SMoni Shoua 1064508a523fSParav Pandit static struct attribute *rxe_dev_attributes[] = { 1065508a523fSParav Pandit &dev_attr_parent.attr, 1066508a523fSParav Pandit NULL 1067508a523fSParav Pandit }; 1068508a523fSParav Pandit 1069508a523fSParav Pandit static const struct attribute_group rxe_attr_group = { 1070508a523fSParav Pandit .attrs = rxe_dev_attributes, 10718700e3e7SMoni Shoua }; 10728700e3e7SMoni Shoua 1073ca22354bSJason Gunthorpe static int rxe_enable_driver(struct ib_device *ib_dev) 1074ca22354bSJason Gunthorpe { 1075ca22354bSJason Gunthorpe struct rxe_dev *rxe = container_of(ib_dev, struct rxe_dev, ib_dev); 1076ca22354bSJason Gunthorpe 1077ca22354bSJason Gunthorpe rxe_set_port_state(rxe); 1078ca22354bSJason Gunthorpe dev_info(&rxe->ib_dev.dev, "added %s\n", netdev_name(rxe->ndev)); 1079ca22354bSJason Gunthorpe return 0; 1080ca22354bSJason Gunthorpe } 1081ca22354bSJason Gunthorpe 1082573efc4bSKamal Heib static const struct ib_device_ops rxe_dev_ops = { 10837a154142SJason Gunthorpe .owner = THIS_MODULE, 1084b9560a41SJason Gunthorpe .driver_id = RDMA_DRIVER_RXE, 108572c6ec18SJason Gunthorpe .uverbs_abi_ver = RXE_UVERBS_ABI_VERSION, 1086b9560a41SJason Gunthorpe 1087573efc4bSKamal Heib .alloc_hw_stats = rxe_ib_alloc_hw_stats, 1088573efc4bSKamal Heib .alloc_mr = rxe_alloc_mr, 1089573efc4bSKamal Heib .alloc_pd = rxe_alloc_pd, 1090573efc4bSKamal Heib .alloc_ucontext = rxe_alloc_ucontext, 1091573efc4bSKamal Heib .attach_mcast = rxe_attach_mcast, 1092573efc4bSKamal Heib .create_ah = rxe_create_ah, 1093573efc4bSKamal Heib .create_cq = rxe_create_cq, 1094573efc4bSKamal Heib .create_qp = rxe_create_qp, 1095573efc4bSKamal Heib .create_srq = rxe_create_srq, 1096c367074bSJason Gunthorpe .dealloc_driver = rxe_dealloc, 1097573efc4bSKamal Heib .dealloc_pd = rxe_dealloc_pd, 1098573efc4bSKamal Heib .dealloc_ucontext = rxe_dealloc_ucontext, 1099573efc4bSKamal Heib .dereg_mr = rxe_dereg_mr, 1100573efc4bSKamal Heib .destroy_ah = rxe_destroy_ah, 1101573efc4bSKamal Heib .destroy_cq = rxe_destroy_cq, 1102573efc4bSKamal Heib .destroy_qp = rxe_destroy_qp, 1103573efc4bSKamal Heib .destroy_srq = rxe_destroy_srq, 1104573efc4bSKamal Heib .detach_mcast = rxe_detach_mcast, 1105ca22354bSJason Gunthorpe .enable_driver = rxe_enable_driver, 1106573efc4bSKamal Heib .get_dma_mr = rxe_get_dma_mr, 1107573efc4bSKamal Heib .get_hw_stats = rxe_ib_get_hw_stats, 1108573efc4bSKamal Heib .get_link_layer = rxe_get_link_layer, 1109573efc4bSKamal Heib .get_port_immutable = rxe_port_immutable, 1110573efc4bSKamal Heib .map_mr_sg = rxe_map_mr_sg, 1111573efc4bSKamal Heib .mmap = rxe_mmap, 1112573efc4bSKamal Heib .modify_ah = rxe_modify_ah, 1113573efc4bSKamal Heib .modify_device = rxe_modify_device, 1114573efc4bSKamal Heib .modify_port = rxe_modify_port, 1115573efc4bSKamal Heib .modify_qp = rxe_modify_qp, 1116573efc4bSKamal Heib .modify_srq = rxe_modify_srq, 1117573efc4bSKamal Heib .peek_cq = rxe_peek_cq, 1118573efc4bSKamal Heib .poll_cq = rxe_poll_cq, 1119573efc4bSKamal Heib .post_recv = rxe_post_recv, 1120573efc4bSKamal Heib .post_send = rxe_post_send, 1121573efc4bSKamal Heib .post_srq_recv = rxe_post_srq_recv, 1122573efc4bSKamal Heib .query_ah = rxe_query_ah, 1123573efc4bSKamal Heib .query_device = rxe_query_device, 1124573efc4bSKamal Heib .query_pkey = rxe_query_pkey, 1125573efc4bSKamal Heib .query_port = rxe_query_port, 1126573efc4bSKamal Heib .query_qp = rxe_query_qp, 1127573efc4bSKamal Heib .query_srq = rxe_query_srq, 1128573efc4bSKamal Heib .reg_user_mr = rxe_reg_user_mr, 1129573efc4bSKamal Heib .req_notify_cq = rxe_req_notify_cq, 1130573efc4bSKamal Heib .resize_cq = rxe_resize_cq, 1131d3456914SLeon Romanovsky 1132d3456914SLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_ah, rxe_ah, ibah), 1133e39afe3dSLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_cq, rxe_cq, ibcq), 113421a428a0SLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_pd, rxe_pd, ibpd), 113568e326deSLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_srq, rxe_srq, ibsrq), 1136a2a074efSLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_ucontext, rxe_ucontext, ibuc), 1137573efc4bSKamal Heib }; 1138573efc4bSKamal Heib 113966920e1bSSteve Wise int rxe_register_device(struct rxe_dev *rxe, const char *ibdev_name) 11408700e3e7SMoni Shoua { 11418700e3e7SMoni Shoua int err; 11428700e3e7SMoni Shoua struct ib_device *dev = &rxe->ib_dev; 11433192c53eSThomas Bogendoerfer struct crypto_shash *tfm; 11448700e3e7SMoni Shoua 11458700e3e7SMoni Shoua strlcpy(dev->node_desc, "rxe", sizeof(dev->node_desc)); 11468700e3e7SMoni Shoua 11478700e3e7SMoni Shoua dev->node_type = RDMA_NODE_IB_CA; 11488700e3e7SMoni Shoua dev->phys_port_cnt = 1; 114967cf3623SSagi Grimberg dev->num_comp_vectors = num_possible_cpus(); 115085e9f1dbSBart Van Assche dev->dev.parent = rxe_dma_device(rxe); 11518700e3e7SMoni Shoua dev->local_dma_lkey = 0; 11524d6f2859SYuval Shaia addrconf_addr_eui48((unsigned char *)&dev->node_guid, 11534d6f2859SYuval Shaia rxe->ndev->dev_addr); 11540bbb3b74SBart Van Assche dev->dev.dma_ops = &dma_virt_ops; 115597458fd5SBart Van Assche dev->dev.dma_parms = &rxe->dma_parms; 115697458fd5SBart Van Assche rxe->dma_parms = (struct device_dma_parameters) 115797458fd5SBart Van Assche { .max_segment_size = SZ_2G }; 115856012e1cSyonatanc dma_coerce_mask_and_coherent(&dev->dev, 1159efc365e7SMikhail Malygin dma_get_required_mask(&dev->dev)); 11608700e3e7SMoni Shoua 11618700e3e7SMoni Shoua dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT) 11628700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) 11638700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_DEVICE) 11648700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_PORT) 11658700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_ALLOC_PD) 11668700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DEALLOC_PD) 11678700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_SRQ) 11688700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_SRQ) 11698700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_SRQ) 11708700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_SRQ) 11718700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_SRQ_RECV) 11728700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_QP) 11738700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_QP) 11748700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_QP) 11758700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_QP) 11768700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_SEND) 11778700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_RECV) 11788700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_CQ) 11798700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_RESIZE_CQ) 11808700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_CQ) 11818700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POLL_CQ) 11828700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_PEEK_CQ) 11838700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) 11848700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_REG_MR) 11858700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DEREG_MR) 11868700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_AH) 11878700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_AH) 11888700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_AH) 11898700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_AH) 11908700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_ATTACH_MCAST) 11918700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DETACH_MCAST) 11928700e3e7SMoni Shoua ; 11938700e3e7SMoni Shoua 1194573efc4bSKamal Heib ib_set_device_ops(dev, &rxe_dev_ops); 11954c173f59SJason Gunthorpe err = ib_device_set_netdev(&rxe->ib_dev, rxe->ndev, 1); 11964c173f59SJason Gunthorpe if (err) 11974c173f59SJason Gunthorpe return err; 11988700e3e7SMoni Shoua 11993192c53eSThomas Bogendoerfer tfm = crypto_alloc_shash("crc32", 0, 0); 12003192c53eSThomas Bogendoerfer if (IS_ERR(tfm)) { 120127b0b832SColin Ian King pr_err("failed to allocate crc algorithm err:%ld\n", 12023192c53eSThomas Bogendoerfer PTR_ERR(tfm)); 12033192c53eSThomas Bogendoerfer return PTR_ERR(tfm); 1204cee2688eSyonatanc } 12053192c53eSThomas Bogendoerfer rxe->tfm = tfm; 1206cee2688eSyonatanc 1207508a523fSParav Pandit rdma_set_device_sysfs_group(dev, &rxe_attr_group); 120866920e1bSSteve Wise err = ib_register_device(dev, ibdev_name); 1209c367074bSJason Gunthorpe if (err) 121061013828SKamal Heib pr_warn("%s failed with error %d\n", __func__, err); 1211cee2688eSyonatanc 1212ca22354bSJason Gunthorpe /* 1213ca22354bSJason Gunthorpe * Note that rxe may be invalid at this point if another thread 1214ca22354bSJason Gunthorpe * unregistered it. 1215ca22354bSJason Gunthorpe */ 12168700e3e7SMoni Shoua return err; 12178700e3e7SMoni Shoua } 1218