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 { 868700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(device); 878700e3e7SMoni Shoua struct rxe_port *port; 888700e3e7SMoni Shoua 898700e3e7SMoni Shoua port = &rxe->port; 908700e3e7SMoni Shoua 918700e3e7SMoni Shoua if (unlikely(index >= port->attr.pkey_tbl_len)) { 9285e9f1dbSBart Van Assche dev_warn(device->dev.parent, "invalid index = %d\n", 938700e3e7SMoni Shoua index); 948700e3e7SMoni Shoua goto err1; 958700e3e7SMoni Shoua } 968700e3e7SMoni Shoua 978700e3e7SMoni Shoua *pkey = port->pkey_tbl[index]; 988700e3e7SMoni Shoua return 0; 998700e3e7SMoni Shoua 1008700e3e7SMoni Shoua err1: 1018700e3e7SMoni Shoua return -EINVAL; 1028700e3e7SMoni Shoua } 1038700e3e7SMoni Shoua 1048700e3e7SMoni Shoua static int rxe_modify_device(struct ib_device *dev, 1058700e3e7SMoni Shoua int mask, struct ib_device_modify *attr) 1068700e3e7SMoni Shoua { 1078700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1088700e3e7SMoni Shoua 109f3fceba5SKamal Heib if (mask & ~(IB_DEVICE_MODIFY_SYS_IMAGE_GUID | 110f3fceba5SKamal Heib IB_DEVICE_MODIFY_NODE_DESC)) 111f3fceba5SKamal Heib return -EOPNOTSUPP; 112f3fceba5SKamal Heib 1138700e3e7SMoni Shoua if (mask & IB_DEVICE_MODIFY_SYS_IMAGE_GUID) 1148700e3e7SMoni Shoua rxe->attr.sys_image_guid = cpu_to_be64(attr->sys_image_guid); 1158700e3e7SMoni Shoua 1168700e3e7SMoni Shoua if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 1178700e3e7SMoni Shoua memcpy(rxe->ib_dev.node_desc, 1188700e3e7SMoni Shoua attr->node_desc, sizeof(rxe->ib_dev.node_desc)); 1198700e3e7SMoni Shoua } 1208700e3e7SMoni Shoua 1218700e3e7SMoni Shoua return 0; 1228700e3e7SMoni Shoua } 1238700e3e7SMoni Shoua 1248700e3e7SMoni Shoua static int rxe_modify_port(struct ib_device *dev, 1258700e3e7SMoni Shoua u8 port_num, int mask, struct ib_port_modify *attr) 1268700e3e7SMoni Shoua { 1278700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1288700e3e7SMoni Shoua struct rxe_port *port; 1298700e3e7SMoni Shoua 1308700e3e7SMoni Shoua port = &rxe->port; 1318700e3e7SMoni Shoua 1328700e3e7SMoni Shoua port->attr.port_cap_flags |= attr->set_port_cap_mask; 1338700e3e7SMoni Shoua port->attr.port_cap_flags &= ~attr->clr_port_cap_mask; 1348700e3e7SMoni Shoua 1358700e3e7SMoni Shoua if (mask & IB_PORT_RESET_QKEY_CNTR) 1368700e3e7SMoni Shoua port->attr.qkey_viol_cntr = 0; 1378700e3e7SMoni Shoua 1388700e3e7SMoni Shoua return 0; 1398700e3e7SMoni Shoua } 1408700e3e7SMoni Shoua 1418700e3e7SMoni Shoua static enum rdma_link_layer rxe_get_link_layer(struct ib_device *dev, 1428700e3e7SMoni Shoua u8 port_num) 1438700e3e7SMoni Shoua { 1448700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1458700e3e7SMoni Shoua 146839f5ac0SBart Van Assche return rxe_link_layer(rxe, port_num); 1478700e3e7SMoni Shoua } 1488700e3e7SMoni Shoua 149a2a074efSLeon Romanovsky static int rxe_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata) 1508700e3e7SMoni Shoua { 151a2a074efSLeon Romanovsky struct rxe_dev *rxe = to_rdev(uctx->device); 152a2a074efSLeon Romanovsky struct rxe_ucontext *uc = to_ruc(uctx); 1538700e3e7SMoni Shoua 154a2a074efSLeon Romanovsky return rxe_add_to_pool(&rxe->uc_pool, &uc->pelem); 1558700e3e7SMoni Shoua } 1568700e3e7SMoni Shoua 157a2a074efSLeon Romanovsky static void rxe_dealloc_ucontext(struct ib_ucontext *ibuc) 1588700e3e7SMoni Shoua { 1598700e3e7SMoni Shoua struct rxe_ucontext *uc = to_ruc(ibuc); 1608700e3e7SMoni Shoua 1618700e3e7SMoni Shoua rxe_drop_ref(uc); 1628700e3e7SMoni Shoua } 1638700e3e7SMoni Shoua 1648700e3e7SMoni Shoua static int rxe_port_immutable(struct ib_device *dev, u8 port_num, 1658700e3e7SMoni Shoua struct ib_port_immutable *immutable) 1668700e3e7SMoni Shoua { 1678700e3e7SMoni Shoua int err; 1688700e3e7SMoni Shoua struct ib_port_attr attr; 1698700e3e7SMoni Shoua 170c4550c63SOr Gerlitz immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; 171c4550c63SOr Gerlitz 172c4550c63SOr Gerlitz err = ib_query_port(dev, port_num, &attr); 1738700e3e7SMoni Shoua if (err) 1748700e3e7SMoni Shoua return err; 1758700e3e7SMoni Shoua 1768700e3e7SMoni Shoua immutable->pkey_tbl_len = attr.pkey_tbl_len; 1778700e3e7SMoni Shoua immutable->gid_tbl_len = attr.gid_tbl_len; 1788700e3e7SMoni Shoua immutable->max_mad_size = IB_MGMT_MAD_SIZE; 1798700e3e7SMoni Shoua 1808700e3e7SMoni Shoua return 0; 1818700e3e7SMoni Shoua } 1828700e3e7SMoni Shoua 183ff23dfa1SShamir Rabinovitch static int rxe_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) 1848700e3e7SMoni Shoua { 18521a428a0SLeon Romanovsky struct rxe_dev *rxe = to_rdev(ibpd->device); 18621a428a0SLeon Romanovsky struct rxe_pd *pd = to_rpd(ibpd); 1878700e3e7SMoni Shoua 18821a428a0SLeon Romanovsky return rxe_add_to_pool(&rxe->pd_pool, &pd->pelem); 1898700e3e7SMoni Shoua } 1908700e3e7SMoni Shoua 191c4367a26SShamir Rabinovitch static void rxe_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) 1928700e3e7SMoni Shoua { 1938700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 1948700e3e7SMoni Shoua 1958700e3e7SMoni Shoua rxe_drop_ref(pd); 1968700e3e7SMoni Shoua } 1978700e3e7SMoni Shoua 198d3456914SLeon Romanovsky static int rxe_create_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr, 199d3456914SLeon Romanovsky u32 flags, struct ib_udata *udata) 200477864c8SMoni Shoua 2018700e3e7SMoni Shoua { 2028700e3e7SMoni Shoua int err; 203d3456914SLeon Romanovsky struct rxe_dev *rxe = to_rdev(ibah->device); 204d3456914SLeon Romanovsky struct rxe_ah *ah = to_rah(ibah); 2058700e3e7SMoni Shoua 2068700e3e7SMoni Shoua err = rxe_av_chk_attr(rxe, attr); 2078700e3e7SMoni Shoua if (err) 208d3456914SLeon Romanovsky return err; 2098700e3e7SMoni Shoua 210d3456914SLeon Romanovsky err = rxe_add_to_pool(&rxe->ah_pool, &ah->pelem); 211d3456914SLeon Romanovsky if (err) 212d3456914SLeon Romanovsky return err; 2138700e3e7SMoni Shoua 214fa407188SKamal Heib rxe_init_av(attr, &ah->av); 215d3456914SLeon Romanovsky return 0; 2168700e3e7SMoni Shoua } 2178700e3e7SMoni Shoua 21890898850SDasaratharaman Chandramouli static int rxe_modify_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr) 2198700e3e7SMoni Shoua { 2208700e3e7SMoni Shoua int err; 2218700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibah->device); 2228700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2238700e3e7SMoni Shoua 2248700e3e7SMoni Shoua err = rxe_av_chk_attr(rxe, attr); 2258700e3e7SMoni Shoua if (err) 2268700e3e7SMoni Shoua return err; 2278700e3e7SMoni Shoua 228fa407188SKamal Heib rxe_init_av(attr, &ah->av); 2298700e3e7SMoni Shoua return 0; 2308700e3e7SMoni Shoua } 2318700e3e7SMoni Shoua 23290898850SDasaratharaman Chandramouli static int rxe_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr) 2338700e3e7SMoni Shoua { 2348700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2358700e3e7SMoni Shoua 236eca7ddf9SDasaratharaman Chandramouli memset(attr, 0, sizeof(*attr)); 23744c58487SDasaratharaman Chandramouli attr->type = ibah->type; 2389c96f3d4SZhu Yanjun rxe_av_to_attr(&ah->av, attr); 2398700e3e7SMoni Shoua return 0; 2408700e3e7SMoni Shoua } 2418700e3e7SMoni Shoua 242d3456914SLeon Romanovsky static void rxe_destroy_ah(struct ib_ah *ibah, u32 flags) 2438700e3e7SMoni Shoua { 2448700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2458700e3e7SMoni Shoua 2468700e3e7SMoni Shoua rxe_drop_ref(ah); 2478700e3e7SMoni Shoua } 2488700e3e7SMoni Shoua 249d34ac5cdSBart Van Assche static int post_one_recv(struct rxe_rq *rq, const struct ib_recv_wr *ibwr) 2508700e3e7SMoni Shoua { 2518700e3e7SMoni Shoua int err; 2528700e3e7SMoni Shoua int i; 2538700e3e7SMoni Shoua u32 length; 2548700e3e7SMoni Shoua struct rxe_recv_wqe *recv_wqe; 2558700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 2568700e3e7SMoni Shoua 2578700e3e7SMoni Shoua if (unlikely(queue_full(rq->queue))) { 2588700e3e7SMoni Shoua err = -ENOMEM; 2598700e3e7SMoni Shoua goto err1; 2608700e3e7SMoni Shoua } 2618700e3e7SMoni Shoua 2628700e3e7SMoni Shoua if (unlikely(num_sge > rq->max_sge)) { 2638700e3e7SMoni Shoua err = -EINVAL; 2648700e3e7SMoni Shoua goto err1; 2658700e3e7SMoni Shoua } 2668700e3e7SMoni Shoua 2678700e3e7SMoni Shoua length = 0; 2688700e3e7SMoni Shoua for (i = 0; i < num_sge; i++) 2698700e3e7SMoni Shoua length += ibwr->sg_list[i].length; 2708700e3e7SMoni Shoua 2718700e3e7SMoni Shoua recv_wqe = producer_addr(rq->queue); 2728700e3e7SMoni Shoua recv_wqe->wr_id = ibwr->wr_id; 2738700e3e7SMoni Shoua recv_wqe->num_sge = num_sge; 2748700e3e7SMoni Shoua 2758700e3e7SMoni Shoua memcpy(recv_wqe->dma.sge, ibwr->sg_list, 2768700e3e7SMoni Shoua num_sge * sizeof(struct ib_sge)); 2778700e3e7SMoni Shoua 2788700e3e7SMoni Shoua recv_wqe->dma.length = length; 2798700e3e7SMoni Shoua recv_wqe->dma.resid = length; 2808700e3e7SMoni Shoua recv_wqe->dma.num_sge = num_sge; 2818700e3e7SMoni Shoua recv_wqe->dma.cur_sge = 0; 2828700e3e7SMoni Shoua recv_wqe->dma.sge_offset = 0; 2838700e3e7SMoni Shoua 2848700e3e7SMoni Shoua /* make sure all changes to the work queue are written before we 2858700e3e7SMoni Shoua * update the producer pointer 2868700e3e7SMoni Shoua */ 2878700e3e7SMoni Shoua smp_wmb(); 2888700e3e7SMoni Shoua 2898700e3e7SMoni Shoua advance_producer(rq->queue); 2908700e3e7SMoni Shoua return 0; 2918700e3e7SMoni Shoua 2928700e3e7SMoni Shoua err1: 2938700e3e7SMoni Shoua return err; 2948700e3e7SMoni Shoua } 2958700e3e7SMoni Shoua 29668e326deSLeon Romanovsky static int rxe_create_srq(struct ib_srq *ibsrq, struct ib_srq_init_attr *init, 2978700e3e7SMoni Shoua struct ib_udata *udata) 2988700e3e7SMoni Shoua { 2998700e3e7SMoni Shoua int err; 30068e326deSLeon Romanovsky struct rxe_dev *rxe = to_rdev(ibsrq->device); 30168e326deSLeon Romanovsky struct rxe_pd *pd = to_rpd(ibsrq->pd); 30268e326deSLeon Romanovsky struct rxe_srq *srq = to_rsrq(ibsrq); 3030c43ab37SJason Gunthorpe struct rxe_create_srq_resp __user *uresp = NULL; 3040c43ab37SJason Gunthorpe 3050c43ab37SJason Gunthorpe if (udata) { 3060c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 30768e326deSLeon Romanovsky return -EINVAL; 3080c43ab37SJason Gunthorpe uresp = udata->outbuf; 3090c43ab37SJason Gunthorpe } 3108700e3e7SMoni Shoua 3118700e3e7SMoni Shoua err = rxe_srq_chk_attr(rxe, NULL, &init->attr, IB_SRQ_INIT_MASK); 3128700e3e7SMoni Shoua if (err) 3138700e3e7SMoni Shoua goto err1; 3148700e3e7SMoni Shoua 31568e326deSLeon Romanovsky err = rxe_add_to_pool(&rxe->srq_pool, &srq->pelem); 31668e326deSLeon Romanovsky if (err) 3178700e3e7SMoni Shoua goto err1; 3188700e3e7SMoni Shoua 3198700e3e7SMoni Shoua rxe_add_ref(pd); 3208700e3e7SMoni Shoua srq->pd = pd; 3218700e3e7SMoni Shoua 322ff23dfa1SShamir Rabinovitch err = rxe_srq_from_init(rxe, srq, init, udata, uresp); 3238700e3e7SMoni Shoua if (err) 3248700e3e7SMoni Shoua goto err2; 3258700e3e7SMoni Shoua 32668e326deSLeon Romanovsky return 0; 3278700e3e7SMoni Shoua 3288700e3e7SMoni Shoua err2: 3298700e3e7SMoni Shoua rxe_drop_ref(pd); 3308700e3e7SMoni Shoua rxe_drop_ref(srq); 3318700e3e7SMoni Shoua err1: 33268e326deSLeon Romanovsky return err; 3338700e3e7SMoni Shoua } 3348700e3e7SMoni Shoua 3358700e3e7SMoni Shoua static int rxe_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, 3368700e3e7SMoni Shoua enum ib_srq_attr_mask mask, 3378700e3e7SMoni Shoua struct ib_udata *udata) 3388700e3e7SMoni Shoua { 3398700e3e7SMoni Shoua int err; 3408700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3418700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibsrq->device); 3420c43ab37SJason Gunthorpe struct rxe_modify_srq_cmd ucmd = {}; 3430c43ab37SJason Gunthorpe 3440c43ab37SJason Gunthorpe if (udata) { 3450c43ab37SJason Gunthorpe if (udata->inlen < sizeof(ucmd)) 3460c43ab37SJason Gunthorpe return -EINVAL; 3470c43ab37SJason Gunthorpe 3480c43ab37SJason Gunthorpe err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)); 3490c43ab37SJason Gunthorpe if (err) 3500c43ab37SJason Gunthorpe return err; 3510c43ab37SJason Gunthorpe } 3528700e3e7SMoni Shoua 3538700e3e7SMoni Shoua err = rxe_srq_chk_attr(rxe, srq, attr, mask); 3548700e3e7SMoni Shoua if (err) 3558700e3e7SMoni Shoua goto err1; 3568700e3e7SMoni Shoua 357ff23dfa1SShamir Rabinovitch err = rxe_srq_from_attr(rxe, srq, attr, mask, &ucmd, udata); 3588700e3e7SMoni Shoua if (err) 3598700e3e7SMoni Shoua goto err1; 3608700e3e7SMoni Shoua 3618700e3e7SMoni Shoua return 0; 3628700e3e7SMoni Shoua 3638700e3e7SMoni Shoua err1: 3648700e3e7SMoni Shoua return err; 3658700e3e7SMoni Shoua } 3668700e3e7SMoni Shoua 3678700e3e7SMoni Shoua static int rxe_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr) 3688700e3e7SMoni Shoua { 3698700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3708700e3e7SMoni Shoua 3718700e3e7SMoni Shoua if (srq->error) 3728700e3e7SMoni Shoua return -EINVAL; 3738700e3e7SMoni Shoua 3748700e3e7SMoni Shoua attr->max_wr = srq->rq.queue->buf->index_mask; 3758700e3e7SMoni Shoua attr->max_sge = srq->rq.max_sge; 3768700e3e7SMoni Shoua attr->srq_limit = srq->limit; 3778700e3e7SMoni Shoua return 0; 3788700e3e7SMoni Shoua } 3798700e3e7SMoni Shoua 38068e326deSLeon Romanovsky static void rxe_destroy_srq(struct ib_srq *ibsrq, struct ib_udata *udata) 3818700e3e7SMoni Shoua { 3828700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3838700e3e7SMoni Shoua 3848700e3e7SMoni Shoua if (srq->rq.queue) 3858700e3e7SMoni Shoua rxe_queue_cleanup(srq->rq.queue); 3868700e3e7SMoni Shoua 3878700e3e7SMoni Shoua rxe_drop_ref(srq->pd); 3888700e3e7SMoni Shoua rxe_drop_ref(srq); 3898700e3e7SMoni Shoua } 3908700e3e7SMoni Shoua 391d34ac5cdSBart Van Assche static int rxe_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr, 392d34ac5cdSBart Van Assche const struct ib_recv_wr **bad_wr) 3938700e3e7SMoni Shoua { 3948700e3e7SMoni Shoua int err = 0; 3958700e3e7SMoni Shoua unsigned long flags; 3968700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3978700e3e7SMoni Shoua 3988700e3e7SMoni Shoua spin_lock_irqsave(&srq->rq.producer_lock, flags); 3998700e3e7SMoni Shoua 4008700e3e7SMoni Shoua while (wr) { 4018700e3e7SMoni Shoua err = post_one_recv(&srq->rq, wr); 4028700e3e7SMoni Shoua if (unlikely(err)) 4038700e3e7SMoni Shoua break; 4048700e3e7SMoni Shoua wr = wr->next; 4058700e3e7SMoni Shoua } 4068700e3e7SMoni Shoua 4078700e3e7SMoni Shoua spin_unlock_irqrestore(&srq->rq.producer_lock, flags); 4088700e3e7SMoni Shoua 4098700e3e7SMoni Shoua if (err) 4108700e3e7SMoni Shoua *bad_wr = wr; 4118700e3e7SMoni Shoua 4128700e3e7SMoni Shoua return err; 4138700e3e7SMoni Shoua } 4148700e3e7SMoni Shoua 4158700e3e7SMoni Shoua static struct ib_qp *rxe_create_qp(struct ib_pd *ibpd, 4168700e3e7SMoni Shoua struct ib_qp_init_attr *init, 4178700e3e7SMoni Shoua struct ib_udata *udata) 4188700e3e7SMoni Shoua { 4198700e3e7SMoni Shoua int err; 4208700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 4218700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 4228700e3e7SMoni Shoua struct rxe_qp *qp; 4230c43ab37SJason Gunthorpe struct rxe_create_qp_resp __user *uresp = NULL; 4240c43ab37SJason Gunthorpe 4250c43ab37SJason Gunthorpe if (udata) { 4260c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 4270c43ab37SJason Gunthorpe return ERR_PTR(-EINVAL); 4280c43ab37SJason Gunthorpe uresp = udata->outbuf; 4290c43ab37SJason Gunthorpe } 4308700e3e7SMoni Shoua 4318700e3e7SMoni Shoua err = rxe_qp_chk_init(rxe, init); 4328700e3e7SMoni Shoua if (err) 4338700e3e7SMoni Shoua goto err1; 4348700e3e7SMoni Shoua 4358700e3e7SMoni Shoua qp = rxe_alloc(&rxe->qp_pool); 4368700e3e7SMoni Shoua if (!qp) { 4378700e3e7SMoni Shoua err = -ENOMEM; 4388700e3e7SMoni Shoua goto err1; 4398700e3e7SMoni Shoua } 4408700e3e7SMoni Shoua 4418700e3e7SMoni Shoua if (udata) { 4428700e3e7SMoni Shoua if (udata->inlen) { 4438700e3e7SMoni Shoua err = -EINVAL; 4445b9ea16cSAndrew Boyer goto err2; 4458700e3e7SMoni Shoua } 4468700e3e7SMoni Shoua qp->is_user = 1; 4478700e3e7SMoni Shoua } 4488700e3e7SMoni Shoua 4498700e3e7SMoni Shoua rxe_add_index(qp); 4508700e3e7SMoni Shoua 451e00b64f7SShamir Rabinovitch err = rxe_qp_from_init(rxe, qp, pd, init, uresp, ibpd, udata); 4528700e3e7SMoni Shoua if (err) 4535b9ea16cSAndrew Boyer goto err3; 4548700e3e7SMoni Shoua 4558700e3e7SMoni Shoua return &qp->ibqp; 4568700e3e7SMoni Shoua 4575b9ea16cSAndrew Boyer err3: 4588700e3e7SMoni Shoua rxe_drop_index(qp); 4595b9ea16cSAndrew Boyer err2: 4608700e3e7SMoni Shoua rxe_drop_ref(qp); 4618700e3e7SMoni Shoua err1: 4628700e3e7SMoni Shoua return ERR_PTR(err); 4638700e3e7SMoni Shoua } 4648700e3e7SMoni Shoua 4658700e3e7SMoni Shoua static int rxe_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 4668700e3e7SMoni Shoua int mask, struct ib_udata *udata) 4678700e3e7SMoni Shoua { 4688700e3e7SMoni Shoua int err; 4698700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 4708700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 4718700e3e7SMoni Shoua 4728700e3e7SMoni Shoua err = rxe_qp_chk_attr(rxe, qp, attr, mask); 4738700e3e7SMoni Shoua if (err) 4748700e3e7SMoni Shoua goto err1; 4758700e3e7SMoni Shoua 4768700e3e7SMoni Shoua err = rxe_qp_from_attr(qp, attr, mask, udata); 4778700e3e7SMoni Shoua if (err) 4788700e3e7SMoni Shoua goto err1; 4798700e3e7SMoni Shoua 4808700e3e7SMoni Shoua return 0; 4818700e3e7SMoni Shoua 4828700e3e7SMoni Shoua err1: 4838700e3e7SMoni Shoua return err; 4848700e3e7SMoni Shoua } 4858700e3e7SMoni Shoua 4868700e3e7SMoni Shoua static int rxe_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 4878700e3e7SMoni Shoua int mask, struct ib_qp_init_attr *init) 4888700e3e7SMoni Shoua { 4898700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 4908700e3e7SMoni Shoua 4918700e3e7SMoni Shoua rxe_qp_to_init(qp, init); 4928700e3e7SMoni Shoua rxe_qp_to_attr(qp, attr, mask); 4938700e3e7SMoni Shoua 4948700e3e7SMoni Shoua return 0; 4958700e3e7SMoni Shoua } 4968700e3e7SMoni Shoua 497c4367a26SShamir Rabinovitch static int rxe_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata) 4988700e3e7SMoni Shoua { 4998700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 5008700e3e7SMoni Shoua 5018700e3e7SMoni Shoua rxe_qp_destroy(qp); 5028700e3e7SMoni Shoua rxe_drop_index(qp); 5038700e3e7SMoni Shoua rxe_drop_ref(qp); 5048700e3e7SMoni Shoua return 0; 5058700e3e7SMoni Shoua } 5068700e3e7SMoni Shoua 507f696bf6dSBart Van Assche static int validate_send_wr(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 5088700e3e7SMoni Shoua unsigned int mask, unsigned int length) 5098700e3e7SMoni Shoua { 5108700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 5118700e3e7SMoni Shoua struct rxe_sq *sq = &qp->sq; 5128700e3e7SMoni Shoua 5138700e3e7SMoni Shoua if (unlikely(num_sge > sq->max_sge)) 5148700e3e7SMoni Shoua goto err1; 5158700e3e7SMoni Shoua 5168700e3e7SMoni Shoua if (unlikely(mask & WR_ATOMIC_MASK)) { 5178700e3e7SMoni Shoua if (length < 8) 5188700e3e7SMoni Shoua goto err1; 5198700e3e7SMoni Shoua 5208700e3e7SMoni Shoua if (atomic_wr(ibwr)->remote_addr & 0x7) 5218700e3e7SMoni Shoua goto err1; 5228700e3e7SMoni Shoua } 5238700e3e7SMoni Shoua 5248700e3e7SMoni Shoua if (unlikely((ibwr->send_flags & IB_SEND_INLINE) && 5258700e3e7SMoni Shoua (length > sq->max_inline))) 5268700e3e7SMoni Shoua goto err1; 5278700e3e7SMoni Shoua 5288700e3e7SMoni Shoua return 0; 5298700e3e7SMoni Shoua 5308700e3e7SMoni Shoua err1: 5318700e3e7SMoni Shoua return -EINVAL; 5328700e3e7SMoni Shoua } 5338700e3e7SMoni Shoua 5348700e3e7SMoni Shoua static void init_send_wr(struct rxe_qp *qp, struct rxe_send_wr *wr, 535f696bf6dSBart Van Assche const struct ib_send_wr *ibwr) 5368700e3e7SMoni Shoua { 5378700e3e7SMoni Shoua wr->wr_id = ibwr->wr_id; 5388700e3e7SMoni Shoua wr->num_sge = ibwr->num_sge; 5398700e3e7SMoni Shoua wr->opcode = ibwr->opcode; 5408700e3e7SMoni Shoua wr->send_flags = ibwr->send_flags; 5418700e3e7SMoni Shoua 5428700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_UD || 5438700e3e7SMoni Shoua qp_type(qp) == IB_QPT_SMI || 5448700e3e7SMoni Shoua qp_type(qp) == IB_QPT_GSI) { 5458700e3e7SMoni Shoua wr->wr.ud.remote_qpn = ud_wr(ibwr)->remote_qpn; 5468700e3e7SMoni Shoua wr->wr.ud.remote_qkey = ud_wr(ibwr)->remote_qkey; 5478700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_GSI) 5488700e3e7SMoni Shoua wr->wr.ud.pkey_index = ud_wr(ibwr)->pkey_index; 5498700e3e7SMoni Shoua if (wr->opcode == IB_WR_SEND_WITH_IMM) 5508700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 5518700e3e7SMoni Shoua } else { 5528700e3e7SMoni Shoua switch (wr->opcode) { 5538700e3e7SMoni Shoua case IB_WR_RDMA_WRITE_WITH_IMM: 5548700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 555ea6ee93bSBart Van Assche /* fall through */ 5568700e3e7SMoni Shoua case IB_WR_RDMA_READ: 5578700e3e7SMoni Shoua case IB_WR_RDMA_WRITE: 5588700e3e7SMoni Shoua wr->wr.rdma.remote_addr = rdma_wr(ibwr)->remote_addr; 5598700e3e7SMoni Shoua wr->wr.rdma.rkey = rdma_wr(ibwr)->rkey; 5608700e3e7SMoni Shoua break; 5618700e3e7SMoni Shoua case IB_WR_SEND_WITH_IMM: 5628700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 5638700e3e7SMoni Shoua break; 5648700e3e7SMoni Shoua case IB_WR_SEND_WITH_INV: 5658700e3e7SMoni Shoua wr->ex.invalidate_rkey = ibwr->ex.invalidate_rkey; 5668700e3e7SMoni Shoua break; 5678700e3e7SMoni Shoua case IB_WR_ATOMIC_CMP_AND_SWP: 5688700e3e7SMoni Shoua case IB_WR_ATOMIC_FETCH_AND_ADD: 5698700e3e7SMoni Shoua wr->wr.atomic.remote_addr = 5708700e3e7SMoni Shoua atomic_wr(ibwr)->remote_addr; 5718700e3e7SMoni Shoua wr->wr.atomic.compare_add = 5728700e3e7SMoni Shoua atomic_wr(ibwr)->compare_add; 5738700e3e7SMoni Shoua wr->wr.atomic.swap = atomic_wr(ibwr)->swap; 5748700e3e7SMoni Shoua wr->wr.atomic.rkey = atomic_wr(ibwr)->rkey; 5758700e3e7SMoni Shoua break; 5768700e3e7SMoni Shoua case IB_WR_LOCAL_INV: 5778700e3e7SMoni Shoua wr->ex.invalidate_rkey = ibwr->ex.invalidate_rkey; 5788700e3e7SMoni Shoua break; 5798700e3e7SMoni Shoua case IB_WR_REG_MR: 5808700e3e7SMoni Shoua wr->wr.reg.mr = reg_wr(ibwr)->mr; 5818700e3e7SMoni Shoua wr->wr.reg.key = reg_wr(ibwr)->key; 5828700e3e7SMoni Shoua wr->wr.reg.access = reg_wr(ibwr)->access; 5838700e3e7SMoni Shoua break; 5848700e3e7SMoni Shoua default: 5858700e3e7SMoni Shoua break; 5868700e3e7SMoni Shoua } 5878700e3e7SMoni Shoua } 5888700e3e7SMoni Shoua } 5898700e3e7SMoni Shoua 590f696bf6dSBart Van Assche static int init_send_wqe(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 5918700e3e7SMoni Shoua unsigned int mask, unsigned int length, 5928700e3e7SMoni Shoua struct rxe_send_wqe *wqe) 5938700e3e7SMoni Shoua { 5948700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 5958700e3e7SMoni Shoua struct ib_sge *sge; 5968700e3e7SMoni Shoua int i; 5978700e3e7SMoni Shoua u8 *p; 5988700e3e7SMoni Shoua 5998700e3e7SMoni Shoua init_send_wr(qp, &wqe->wr, ibwr); 6008700e3e7SMoni Shoua 6018700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_UD || 6028700e3e7SMoni Shoua qp_type(qp) == IB_QPT_SMI || 6038700e3e7SMoni Shoua qp_type(qp) == IB_QPT_GSI) 6048700e3e7SMoni Shoua memcpy(&wqe->av, &to_rah(ud_wr(ibwr)->ah)->av, sizeof(wqe->av)); 6058700e3e7SMoni Shoua 6068700e3e7SMoni Shoua if (unlikely(ibwr->send_flags & IB_SEND_INLINE)) { 6078700e3e7SMoni Shoua p = wqe->dma.inline_data; 6088700e3e7SMoni Shoua 6098700e3e7SMoni Shoua sge = ibwr->sg_list; 6108700e3e7SMoni Shoua for (i = 0; i < num_sge; i++, sge++) { 6118700e3e7SMoni Shoua memcpy(p, (void *)(uintptr_t)sge->addr, 6128700e3e7SMoni Shoua sge->length); 6138700e3e7SMoni Shoua 6148700e3e7SMoni Shoua p += sge->length; 6158700e3e7SMoni Shoua } 6168700e3e7SMoni Shoua } else if (mask & WR_REG_MASK) { 6178700e3e7SMoni Shoua wqe->mask = mask; 6188700e3e7SMoni Shoua wqe->state = wqe_state_posted; 6198700e3e7SMoni Shoua return 0; 6208700e3e7SMoni Shoua } else 6218700e3e7SMoni Shoua memcpy(wqe->dma.sge, ibwr->sg_list, 6228700e3e7SMoni Shoua num_sge * sizeof(struct ib_sge)); 6238700e3e7SMoni Shoua 624a6544a62SBart Van Assche wqe->iova = mask & WR_ATOMIC_MASK ? atomic_wr(ibwr)->remote_addr : 625a6544a62SBart Van Assche mask & WR_READ_OR_WRITE_MASK ? rdma_wr(ibwr)->remote_addr : 0; 6268700e3e7SMoni Shoua wqe->mask = mask; 6278700e3e7SMoni Shoua wqe->dma.length = length; 6288700e3e7SMoni Shoua wqe->dma.resid = length; 6298700e3e7SMoni Shoua wqe->dma.num_sge = num_sge; 6308700e3e7SMoni Shoua wqe->dma.cur_sge = 0; 6318700e3e7SMoni Shoua wqe->dma.sge_offset = 0; 6328700e3e7SMoni Shoua wqe->state = wqe_state_posted; 6338700e3e7SMoni Shoua wqe->ssn = atomic_add_return(1, &qp->ssn); 6348700e3e7SMoni Shoua 6358700e3e7SMoni Shoua return 0; 6368700e3e7SMoni Shoua } 6378700e3e7SMoni Shoua 638f696bf6dSBart Van Assche static int post_one_send(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 639e404f945SParav Pandit unsigned int mask, u32 length) 6408700e3e7SMoni Shoua { 6418700e3e7SMoni Shoua int err; 6428700e3e7SMoni Shoua struct rxe_sq *sq = &qp->sq; 6438700e3e7SMoni Shoua struct rxe_send_wqe *send_wqe; 6448700e3e7SMoni Shoua unsigned long flags; 6458700e3e7SMoni Shoua 6468700e3e7SMoni Shoua err = validate_send_wr(qp, ibwr, mask, length); 6478700e3e7SMoni Shoua if (err) 6488700e3e7SMoni Shoua return err; 6498700e3e7SMoni Shoua 6508700e3e7SMoni Shoua spin_lock_irqsave(&qp->sq.sq_lock, flags); 6518700e3e7SMoni Shoua 6528700e3e7SMoni Shoua if (unlikely(queue_full(sq->queue))) { 6538700e3e7SMoni Shoua err = -ENOMEM; 6548700e3e7SMoni Shoua goto err1; 6558700e3e7SMoni Shoua } 6568700e3e7SMoni Shoua 6578700e3e7SMoni Shoua send_wqe = producer_addr(sq->queue); 6588700e3e7SMoni Shoua 6598700e3e7SMoni Shoua err = init_send_wqe(qp, ibwr, mask, length, send_wqe); 6608700e3e7SMoni Shoua if (unlikely(err)) 6618700e3e7SMoni Shoua goto err1; 6628700e3e7SMoni Shoua 6638700e3e7SMoni Shoua /* 6648700e3e7SMoni Shoua * make sure all changes to the work queue are 6658700e3e7SMoni Shoua * written before we update the producer pointer 6668700e3e7SMoni Shoua */ 6678700e3e7SMoni Shoua smp_wmb(); 6688700e3e7SMoni Shoua 6698700e3e7SMoni Shoua advance_producer(sq->queue); 6708700e3e7SMoni Shoua spin_unlock_irqrestore(&qp->sq.sq_lock, flags); 6718700e3e7SMoni Shoua 6728700e3e7SMoni Shoua return 0; 6738700e3e7SMoni Shoua 6748700e3e7SMoni Shoua err1: 6758700e3e7SMoni Shoua spin_unlock_irqrestore(&qp->sq.sq_lock, flags); 6768700e3e7SMoni Shoua return err; 6778700e3e7SMoni Shoua } 6788700e3e7SMoni Shoua 679d34ac5cdSBart Van Assche static int rxe_post_send_kernel(struct rxe_qp *qp, const struct ib_send_wr *wr, 680d34ac5cdSBart Van Assche const struct ib_send_wr **bad_wr) 6818700e3e7SMoni Shoua { 6828700e3e7SMoni Shoua int err = 0; 6838700e3e7SMoni Shoua unsigned int mask; 6848700e3e7SMoni Shoua unsigned int length = 0; 6858700e3e7SMoni Shoua int i; 6868700e3e7SMoni Shoua 6878700e3e7SMoni Shoua while (wr) { 6888700e3e7SMoni Shoua mask = wr_opcode_mask(wr->opcode, qp); 6898700e3e7SMoni Shoua if (unlikely(!mask)) { 6908700e3e7SMoni Shoua err = -EINVAL; 6918700e3e7SMoni Shoua *bad_wr = wr; 6928700e3e7SMoni Shoua break; 6938700e3e7SMoni Shoua } 6948700e3e7SMoni Shoua 6958700e3e7SMoni Shoua if (unlikely((wr->send_flags & IB_SEND_INLINE) && 6968700e3e7SMoni Shoua !(mask & WR_INLINE_MASK))) { 6978700e3e7SMoni Shoua err = -EINVAL; 6988700e3e7SMoni Shoua *bad_wr = wr; 6998700e3e7SMoni Shoua break; 7008700e3e7SMoni Shoua } 7018700e3e7SMoni Shoua 7028700e3e7SMoni Shoua length = 0; 7038700e3e7SMoni Shoua for (i = 0; i < wr->num_sge; i++) 7048700e3e7SMoni Shoua length += wr->sg_list[i].length; 7058700e3e7SMoni Shoua 7068700e3e7SMoni Shoua err = post_one_send(qp, wr, mask, length); 7078700e3e7SMoni Shoua 7088700e3e7SMoni Shoua if (err) { 7098700e3e7SMoni Shoua *bad_wr = wr; 7108700e3e7SMoni Shoua break; 7118700e3e7SMoni Shoua } 7128700e3e7SMoni Shoua wr = wr->next; 7138700e3e7SMoni Shoua } 7148700e3e7SMoni Shoua 7151661d3b0SAlexandru Moise rxe_run_task(&qp->req.task, 1); 7166f301e06SBart Van Assche if (unlikely(qp->req.state == QP_STATE_ERROR)) 7176f301e06SBart Van Assche rxe_run_task(&qp->comp.task, 1); 7188700e3e7SMoni Shoua 7198700e3e7SMoni Shoua return err; 7208700e3e7SMoni Shoua } 7218700e3e7SMoni Shoua 722d34ac5cdSBart Van Assche static int rxe_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, 723d34ac5cdSBart Van Assche const struct ib_send_wr **bad_wr) 724063af595SParav Pandit { 725063af595SParav Pandit struct rxe_qp *qp = to_rqp(ibqp); 726063af595SParav Pandit 727063af595SParav Pandit if (unlikely(!qp->valid)) { 728063af595SParav Pandit *bad_wr = wr; 729063af595SParav Pandit return -EINVAL; 730063af595SParav Pandit } 731063af595SParav Pandit 732063af595SParav Pandit if (unlikely(qp->req.state < QP_STATE_READY)) { 733063af595SParav Pandit *bad_wr = wr; 734063af595SParav Pandit return -EINVAL; 735063af595SParav Pandit } 736063af595SParav Pandit 737063af595SParav Pandit if (qp->is_user) { 738063af595SParav Pandit /* Utilize process context to do protocol processing */ 739063af595SParav Pandit rxe_run_task(&qp->req.task, 0); 740063af595SParav Pandit return 0; 741063af595SParav Pandit } else 742063af595SParav Pandit return rxe_post_send_kernel(qp, wr, bad_wr); 743063af595SParav Pandit } 744063af595SParav Pandit 745d34ac5cdSBart Van Assche static int rxe_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr, 746d34ac5cdSBart Van Assche const struct ib_recv_wr **bad_wr) 7478700e3e7SMoni Shoua { 7488700e3e7SMoni Shoua int err = 0; 7498700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 7508700e3e7SMoni Shoua struct rxe_rq *rq = &qp->rq; 7518700e3e7SMoni Shoua unsigned long flags; 7528700e3e7SMoni Shoua 7538700e3e7SMoni Shoua if (unlikely((qp_state(qp) < IB_QPS_INIT) || !qp->valid)) { 7548700e3e7SMoni Shoua *bad_wr = wr; 7558700e3e7SMoni Shoua err = -EINVAL; 7568700e3e7SMoni Shoua goto err1; 7578700e3e7SMoni Shoua } 7588700e3e7SMoni Shoua 7598700e3e7SMoni Shoua if (unlikely(qp->srq)) { 7608700e3e7SMoni Shoua *bad_wr = wr; 7618700e3e7SMoni Shoua err = -EINVAL; 7628700e3e7SMoni Shoua goto err1; 7638700e3e7SMoni Shoua } 7648700e3e7SMoni Shoua 7658700e3e7SMoni Shoua spin_lock_irqsave(&rq->producer_lock, flags); 7668700e3e7SMoni Shoua 7678700e3e7SMoni Shoua while (wr) { 7688700e3e7SMoni Shoua err = post_one_recv(rq, wr); 7698700e3e7SMoni Shoua if (unlikely(err)) { 7708700e3e7SMoni Shoua *bad_wr = wr; 7718700e3e7SMoni Shoua break; 7728700e3e7SMoni Shoua } 7738700e3e7SMoni Shoua wr = wr->next; 7748700e3e7SMoni Shoua } 7758700e3e7SMoni Shoua 7768700e3e7SMoni Shoua spin_unlock_irqrestore(&rq->producer_lock, flags); 7778700e3e7SMoni Shoua 77812171971SVijay Immanuel if (qp->resp.state == QP_STATE_ERROR) 77912171971SVijay Immanuel rxe_run_task(&qp->resp.task, 1); 78012171971SVijay Immanuel 7818700e3e7SMoni Shoua err1: 7828700e3e7SMoni Shoua return err; 7838700e3e7SMoni Shoua } 7848700e3e7SMoni Shoua 785e39afe3dSLeon Romanovsky static int rxe_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, 7868700e3e7SMoni Shoua struct ib_udata *udata) 7878700e3e7SMoni Shoua { 7888700e3e7SMoni Shoua int err; 789e39afe3dSLeon Romanovsky struct ib_device *dev = ibcq->device; 7908700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 791e39afe3dSLeon Romanovsky struct rxe_cq *cq = to_rcq(ibcq); 7920c43ab37SJason Gunthorpe struct rxe_create_cq_resp __user *uresp = NULL; 7930c43ab37SJason Gunthorpe 7940c43ab37SJason Gunthorpe if (udata) { 7950c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 796e39afe3dSLeon Romanovsky return -EINVAL; 7970c43ab37SJason Gunthorpe uresp = udata->outbuf; 7980c43ab37SJason Gunthorpe } 7998700e3e7SMoni Shoua 8008700e3e7SMoni Shoua if (attr->flags) 801e39afe3dSLeon Romanovsky return -EINVAL; 8028700e3e7SMoni Shoua 803b92ec0feSJason Gunthorpe err = rxe_cq_chk_attr(rxe, NULL, attr->cqe, attr->comp_vector); 8048700e3e7SMoni Shoua if (err) 805e39afe3dSLeon Romanovsky return err; 8068700e3e7SMoni Shoua 807ff23dfa1SShamir Rabinovitch err = rxe_cq_from_init(rxe, cq, attr->cqe, attr->comp_vector, udata, 808ff23dfa1SShamir Rabinovitch uresp); 8098700e3e7SMoni Shoua if (err) 810e39afe3dSLeon Romanovsky return err; 8118700e3e7SMoni Shoua 812e39afe3dSLeon Romanovsky return rxe_add_to_pool(&rxe->cq_pool, &cq->pelem); 8138700e3e7SMoni Shoua } 8148700e3e7SMoni Shoua 815a52c8e24SLeon Romanovsky static void rxe_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata) 8168700e3e7SMoni Shoua { 8178700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8188700e3e7SMoni Shoua 819bfc3ae05SAndrew Boyer rxe_cq_disable(cq); 820bfc3ae05SAndrew Boyer 8218700e3e7SMoni Shoua rxe_drop_ref(cq); 8228700e3e7SMoni Shoua } 8238700e3e7SMoni Shoua 8248700e3e7SMoni Shoua static int rxe_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) 8258700e3e7SMoni Shoua { 8268700e3e7SMoni Shoua int err; 8278700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8288700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibcq->device); 8290c43ab37SJason Gunthorpe struct rxe_resize_cq_resp __user *uresp = NULL; 8300c43ab37SJason Gunthorpe 8310c43ab37SJason Gunthorpe if (udata) { 8320c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 8330c43ab37SJason Gunthorpe return -EINVAL; 8340c43ab37SJason Gunthorpe uresp = udata->outbuf; 8350c43ab37SJason Gunthorpe } 8368700e3e7SMoni Shoua 837b92ec0feSJason Gunthorpe err = rxe_cq_chk_attr(rxe, cq, cqe, 0); 8388700e3e7SMoni Shoua if (err) 8398700e3e7SMoni Shoua goto err1; 8408700e3e7SMoni Shoua 841ff23dfa1SShamir Rabinovitch err = rxe_cq_resize_queue(cq, cqe, uresp, udata); 8428700e3e7SMoni Shoua if (err) 8438700e3e7SMoni Shoua goto err1; 8448700e3e7SMoni Shoua 8458700e3e7SMoni Shoua return 0; 8468700e3e7SMoni Shoua 8478700e3e7SMoni Shoua err1: 8488700e3e7SMoni Shoua return err; 8498700e3e7SMoni Shoua } 8508700e3e7SMoni Shoua 8518700e3e7SMoni Shoua static int rxe_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) 8528700e3e7SMoni Shoua { 8538700e3e7SMoni Shoua int i; 8548700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8558700e3e7SMoni Shoua struct rxe_cqe *cqe; 8568700e3e7SMoni Shoua unsigned long flags; 8578700e3e7SMoni Shoua 8588700e3e7SMoni Shoua spin_lock_irqsave(&cq->cq_lock, flags); 8598700e3e7SMoni Shoua for (i = 0; i < num_entries; i++) { 8608700e3e7SMoni Shoua cqe = queue_head(cq->queue); 8618700e3e7SMoni Shoua if (!cqe) 8628700e3e7SMoni Shoua break; 8638700e3e7SMoni Shoua 8648700e3e7SMoni Shoua memcpy(wc++, &cqe->ibwc, sizeof(*wc)); 8658700e3e7SMoni Shoua advance_consumer(cq->queue); 8668700e3e7SMoni Shoua } 8678700e3e7SMoni Shoua spin_unlock_irqrestore(&cq->cq_lock, flags); 8688700e3e7SMoni Shoua 8698700e3e7SMoni Shoua return i; 8708700e3e7SMoni Shoua } 8718700e3e7SMoni Shoua 8728700e3e7SMoni Shoua static int rxe_peek_cq(struct ib_cq *ibcq, int wc_cnt) 8738700e3e7SMoni Shoua { 8748700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8758700e3e7SMoni Shoua int count = queue_count(cq->queue); 8768700e3e7SMoni Shoua 8778700e3e7SMoni Shoua return (count > wc_cnt) ? wc_cnt : count; 8788700e3e7SMoni Shoua } 8798700e3e7SMoni Shoua 8808700e3e7SMoni Shoua static int rxe_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) 8818700e3e7SMoni Shoua { 8828700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 883accacb8fSAndrew Boyer unsigned long irq_flags; 884accacb8fSAndrew Boyer int ret = 0; 8858700e3e7SMoni Shoua 886accacb8fSAndrew Boyer spin_lock_irqsave(&cq->cq_lock, irq_flags); 8878700e3e7SMoni Shoua if (cq->notify != IB_CQ_NEXT_COMP) 8888700e3e7SMoni Shoua cq->notify = flags & IB_CQ_SOLICITED_MASK; 8898700e3e7SMoni Shoua 890accacb8fSAndrew Boyer if ((flags & IB_CQ_REPORT_MISSED_EVENTS) && !queue_empty(cq->queue)) 891accacb8fSAndrew Boyer ret = 1; 892accacb8fSAndrew Boyer 893accacb8fSAndrew Boyer spin_unlock_irqrestore(&cq->cq_lock, irq_flags); 894accacb8fSAndrew Boyer 895accacb8fSAndrew Boyer return ret; 8968700e3e7SMoni Shoua } 8978700e3e7SMoni Shoua 8988700e3e7SMoni Shoua static struct ib_mr *rxe_get_dma_mr(struct ib_pd *ibpd, int access) 8998700e3e7SMoni Shoua { 9008700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 9018700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 9028700e3e7SMoni Shoua struct rxe_mem *mr; 9038700e3e7SMoni Shoua int err; 9048700e3e7SMoni Shoua 9058700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 9068700e3e7SMoni Shoua if (!mr) { 9078700e3e7SMoni Shoua err = -ENOMEM; 9088700e3e7SMoni Shoua goto err1; 9098700e3e7SMoni Shoua } 9108700e3e7SMoni Shoua 9118700e3e7SMoni Shoua rxe_add_index(mr); 9128700e3e7SMoni Shoua 9138700e3e7SMoni Shoua rxe_add_ref(pd); 9148700e3e7SMoni Shoua 915e12ee8ceSZhu Yanjun err = rxe_mem_init_dma(pd, access, mr); 9168700e3e7SMoni Shoua if (err) 9178700e3e7SMoni Shoua goto err2; 9188700e3e7SMoni Shoua 9198700e3e7SMoni Shoua return &mr->ibmr; 9208700e3e7SMoni Shoua 9218700e3e7SMoni Shoua err2: 9228700e3e7SMoni Shoua rxe_drop_ref(pd); 9238700e3e7SMoni Shoua rxe_drop_index(mr); 9248700e3e7SMoni Shoua rxe_drop_ref(mr); 9258700e3e7SMoni Shoua err1: 9268700e3e7SMoni Shoua return ERR_PTR(err); 9278700e3e7SMoni Shoua } 9288700e3e7SMoni Shoua 9298700e3e7SMoni Shoua static struct ib_mr *rxe_reg_user_mr(struct ib_pd *ibpd, 9308700e3e7SMoni Shoua u64 start, 9318700e3e7SMoni Shoua u64 length, 9328700e3e7SMoni Shoua u64 iova, 9338700e3e7SMoni Shoua int access, struct ib_udata *udata) 9348700e3e7SMoni Shoua { 9358700e3e7SMoni Shoua int err; 9368700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 9378700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 9388700e3e7SMoni Shoua struct rxe_mem *mr; 9398700e3e7SMoni Shoua 9408700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 9418700e3e7SMoni Shoua if (!mr) { 9428700e3e7SMoni Shoua err = -ENOMEM; 9438700e3e7SMoni Shoua goto err2; 9448700e3e7SMoni Shoua } 9458700e3e7SMoni Shoua 9468700e3e7SMoni Shoua rxe_add_index(mr); 9478700e3e7SMoni Shoua 9488700e3e7SMoni Shoua rxe_add_ref(pd); 9498700e3e7SMoni Shoua 950e12ee8ceSZhu Yanjun err = rxe_mem_init_user(pd, start, length, iova, 9518700e3e7SMoni Shoua access, udata, mr); 9528700e3e7SMoni Shoua if (err) 9538700e3e7SMoni Shoua goto err3; 9548700e3e7SMoni Shoua 9558700e3e7SMoni Shoua return &mr->ibmr; 9568700e3e7SMoni Shoua 9578700e3e7SMoni Shoua err3: 9588700e3e7SMoni Shoua rxe_drop_ref(pd); 9598700e3e7SMoni Shoua rxe_drop_index(mr); 9608700e3e7SMoni Shoua rxe_drop_ref(mr); 9618700e3e7SMoni Shoua err2: 9628700e3e7SMoni Shoua return ERR_PTR(err); 9638700e3e7SMoni Shoua } 9648700e3e7SMoni Shoua 965c4367a26SShamir Rabinovitch static int rxe_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata) 9668700e3e7SMoni Shoua { 9678700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 9688700e3e7SMoni Shoua 9698700e3e7SMoni Shoua mr->state = RXE_MEM_STATE_ZOMBIE; 9708700e3e7SMoni Shoua rxe_drop_ref(mr->pd); 9718700e3e7SMoni Shoua rxe_drop_index(mr); 9728700e3e7SMoni Shoua rxe_drop_ref(mr); 9738700e3e7SMoni Shoua return 0; 9748700e3e7SMoni Shoua } 9758700e3e7SMoni Shoua 976c4367a26SShamir Rabinovitch static struct ib_mr *rxe_alloc_mr(struct ib_pd *ibpd, enum ib_mr_type mr_type, 977c4367a26SShamir Rabinovitch u32 max_num_sg, struct ib_udata *udata) 9788700e3e7SMoni Shoua { 9798700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 9808700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 9818700e3e7SMoni Shoua struct rxe_mem *mr; 9828700e3e7SMoni Shoua int err; 9838700e3e7SMoni Shoua 9848700e3e7SMoni Shoua if (mr_type != IB_MR_TYPE_MEM_REG) 9858700e3e7SMoni Shoua return ERR_PTR(-EINVAL); 9868700e3e7SMoni Shoua 9878700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 9888700e3e7SMoni Shoua if (!mr) { 9898700e3e7SMoni Shoua err = -ENOMEM; 9908700e3e7SMoni Shoua goto err1; 9918700e3e7SMoni Shoua } 9928700e3e7SMoni Shoua 9938700e3e7SMoni Shoua rxe_add_index(mr); 9948700e3e7SMoni Shoua 9958700e3e7SMoni Shoua rxe_add_ref(pd); 9968700e3e7SMoni Shoua 997e12ee8ceSZhu Yanjun err = rxe_mem_init_fast(pd, max_num_sg, mr); 9988700e3e7SMoni Shoua if (err) 9998700e3e7SMoni Shoua goto err2; 10008700e3e7SMoni Shoua 10018700e3e7SMoni Shoua return &mr->ibmr; 10028700e3e7SMoni Shoua 10038700e3e7SMoni Shoua err2: 10048700e3e7SMoni Shoua rxe_drop_ref(pd); 10058700e3e7SMoni Shoua rxe_drop_index(mr); 10068700e3e7SMoni Shoua rxe_drop_ref(mr); 10078700e3e7SMoni Shoua err1: 10088700e3e7SMoni Shoua return ERR_PTR(err); 10098700e3e7SMoni Shoua } 10108700e3e7SMoni Shoua 10118700e3e7SMoni Shoua static int rxe_set_page(struct ib_mr *ibmr, u64 addr) 10128700e3e7SMoni Shoua { 10138700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 10148700e3e7SMoni Shoua struct rxe_map *map; 10158700e3e7SMoni Shoua struct rxe_phys_buf *buf; 10168700e3e7SMoni Shoua 10178700e3e7SMoni Shoua if (unlikely(mr->nbuf == mr->num_buf)) 10188700e3e7SMoni Shoua return -ENOMEM; 10198700e3e7SMoni Shoua 10208700e3e7SMoni Shoua map = mr->map[mr->nbuf / RXE_BUF_PER_MAP]; 10218700e3e7SMoni Shoua buf = &map->buf[mr->nbuf % RXE_BUF_PER_MAP]; 10228700e3e7SMoni Shoua 10238700e3e7SMoni Shoua buf->addr = addr; 10248700e3e7SMoni Shoua buf->size = ibmr->page_size; 10258700e3e7SMoni Shoua mr->nbuf++; 10268700e3e7SMoni Shoua 10278700e3e7SMoni Shoua return 0; 10288700e3e7SMoni Shoua } 10298700e3e7SMoni Shoua 1030e404f945SParav Pandit static int rxe_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, 1031e404f945SParav Pandit int sg_nents, unsigned int *sg_offset) 10328700e3e7SMoni Shoua { 10338700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 10348700e3e7SMoni Shoua int n; 10358700e3e7SMoni Shoua 10368700e3e7SMoni Shoua mr->nbuf = 0; 10378700e3e7SMoni Shoua 10388700e3e7SMoni Shoua n = ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, rxe_set_page); 10398700e3e7SMoni Shoua 10408700e3e7SMoni Shoua mr->va = ibmr->iova; 10418700e3e7SMoni Shoua mr->iova = ibmr->iova; 10428700e3e7SMoni Shoua mr->length = ibmr->length; 10438700e3e7SMoni Shoua mr->page_shift = ilog2(ibmr->page_size); 10448700e3e7SMoni Shoua mr->page_mask = ibmr->page_size - 1; 10458700e3e7SMoni Shoua mr->offset = mr->iova & mr->page_mask; 10468700e3e7SMoni Shoua 10478700e3e7SMoni Shoua return n; 10488700e3e7SMoni Shoua } 10498700e3e7SMoni Shoua 10508700e3e7SMoni Shoua static int rxe_attach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid) 10518700e3e7SMoni Shoua { 10528700e3e7SMoni Shoua int err; 10538700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 10548700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 10558700e3e7SMoni Shoua struct rxe_mc_grp *grp; 10568700e3e7SMoni Shoua 10578700e3e7SMoni Shoua /* takes a ref on grp if successful */ 10588700e3e7SMoni Shoua err = rxe_mcast_get_grp(rxe, mgid, &grp); 10598700e3e7SMoni Shoua if (err) 10608700e3e7SMoni Shoua return err; 10618700e3e7SMoni Shoua 10628700e3e7SMoni Shoua err = rxe_mcast_add_grp_elem(rxe, qp, grp); 10638700e3e7SMoni Shoua 10648700e3e7SMoni Shoua rxe_drop_ref(grp); 10658700e3e7SMoni Shoua return err; 10668700e3e7SMoni Shoua } 10678700e3e7SMoni Shoua 10688700e3e7SMoni Shoua static int rxe_detach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid) 10698700e3e7SMoni Shoua { 10708700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 10718700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 10728700e3e7SMoni Shoua 10738700e3e7SMoni Shoua return rxe_mcast_drop_grp_elem(rxe, qp, mgid); 10748700e3e7SMoni Shoua } 10758700e3e7SMoni Shoua 1076c05d2664SKamal Heib static ssize_t parent_show(struct device *device, 10778700e3e7SMoni Shoua struct device_attribute *attr, char *buf) 10788700e3e7SMoni Shoua { 107954747231SParav Pandit struct rxe_dev *rxe = 108054747231SParav Pandit rdma_device_to_drv_device(device, struct rxe_dev, ib_dev); 10818700e3e7SMoni Shoua 1082839f5ac0SBart Van Assche return snprintf(buf, 16, "%s\n", rxe_parent_name(rxe, 1)); 10838700e3e7SMoni Shoua } 10848700e3e7SMoni Shoua 1085c05d2664SKamal Heib static DEVICE_ATTR_RO(parent); 10868700e3e7SMoni Shoua 1087508a523fSParav Pandit static struct attribute *rxe_dev_attributes[] = { 1088508a523fSParav Pandit &dev_attr_parent.attr, 1089508a523fSParav Pandit NULL 1090508a523fSParav Pandit }; 1091508a523fSParav Pandit 1092508a523fSParav Pandit static const struct attribute_group rxe_attr_group = { 1093508a523fSParav Pandit .attrs = rxe_dev_attributes, 10948700e3e7SMoni Shoua }; 10958700e3e7SMoni Shoua 1096ca22354bSJason Gunthorpe static int rxe_enable_driver(struct ib_device *ib_dev) 1097ca22354bSJason Gunthorpe { 1098ca22354bSJason Gunthorpe struct rxe_dev *rxe = container_of(ib_dev, struct rxe_dev, ib_dev); 1099ca22354bSJason Gunthorpe 1100ca22354bSJason Gunthorpe rxe_set_port_state(rxe); 1101ca22354bSJason Gunthorpe dev_info(&rxe->ib_dev.dev, "added %s\n", netdev_name(rxe->ndev)); 1102ca22354bSJason Gunthorpe return 0; 1103ca22354bSJason Gunthorpe } 1104ca22354bSJason Gunthorpe 1105573efc4bSKamal Heib static const struct ib_device_ops rxe_dev_ops = { 11067a154142SJason Gunthorpe .owner = THIS_MODULE, 1107b9560a41SJason Gunthorpe .driver_id = RDMA_DRIVER_RXE, 110872c6ec18SJason Gunthorpe .uverbs_abi_ver = RXE_UVERBS_ABI_VERSION, 1109b9560a41SJason Gunthorpe 1110573efc4bSKamal Heib .alloc_hw_stats = rxe_ib_alloc_hw_stats, 1111573efc4bSKamal Heib .alloc_mr = rxe_alloc_mr, 1112573efc4bSKamal Heib .alloc_pd = rxe_alloc_pd, 1113573efc4bSKamal Heib .alloc_ucontext = rxe_alloc_ucontext, 1114573efc4bSKamal Heib .attach_mcast = rxe_attach_mcast, 1115573efc4bSKamal Heib .create_ah = rxe_create_ah, 1116573efc4bSKamal Heib .create_cq = rxe_create_cq, 1117573efc4bSKamal Heib .create_qp = rxe_create_qp, 1118573efc4bSKamal Heib .create_srq = rxe_create_srq, 1119c367074bSJason Gunthorpe .dealloc_driver = rxe_dealloc, 1120573efc4bSKamal Heib .dealloc_pd = rxe_dealloc_pd, 1121573efc4bSKamal Heib .dealloc_ucontext = rxe_dealloc_ucontext, 1122573efc4bSKamal Heib .dereg_mr = rxe_dereg_mr, 1123573efc4bSKamal Heib .destroy_ah = rxe_destroy_ah, 1124573efc4bSKamal Heib .destroy_cq = rxe_destroy_cq, 1125573efc4bSKamal Heib .destroy_qp = rxe_destroy_qp, 1126573efc4bSKamal Heib .destroy_srq = rxe_destroy_srq, 1127573efc4bSKamal Heib .detach_mcast = rxe_detach_mcast, 1128ca22354bSJason Gunthorpe .enable_driver = rxe_enable_driver, 1129573efc4bSKamal Heib .get_dma_mr = rxe_get_dma_mr, 1130573efc4bSKamal Heib .get_hw_stats = rxe_ib_get_hw_stats, 1131573efc4bSKamal Heib .get_link_layer = rxe_get_link_layer, 1132573efc4bSKamal Heib .get_port_immutable = rxe_port_immutable, 1133573efc4bSKamal Heib .map_mr_sg = rxe_map_mr_sg, 1134573efc4bSKamal Heib .mmap = rxe_mmap, 1135573efc4bSKamal Heib .modify_ah = rxe_modify_ah, 1136573efc4bSKamal Heib .modify_device = rxe_modify_device, 1137573efc4bSKamal Heib .modify_port = rxe_modify_port, 1138573efc4bSKamal Heib .modify_qp = rxe_modify_qp, 1139573efc4bSKamal Heib .modify_srq = rxe_modify_srq, 1140573efc4bSKamal Heib .peek_cq = rxe_peek_cq, 1141573efc4bSKamal Heib .poll_cq = rxe_poll_cq, 1142573efc4bSKamal Heib .post_recv = rxe_post_recv, 1143573efc4bSKamal Heib .post_send = rxe_post_send, 1144573efc4bSKamal Heib .post_srq_recv = rxe_post_srq_recv, 1145573efc4bSKamal Heib .query_ah = rxe_query_ah, 1146573efc4bSKamal Heib .query_device = rxe_query_device, 1147573efc4bSKamal Heib .query_pkey = rxe_query_pkey, 1148573efc4bSKamal Heib .query_port = rxe_query_port, 1149573efc4bSKamal Heib .query_qp = rxe_query_qp, 1150573efc4bSKamal Heib .query_srq = rxe_query_srq, 1151573efc4bSKamal Heib .reg_user_mr = rxe_reg_user_mr, 1152573efc4bSKamal Heib .req_notify_cq = rxe_req_notify_cq, 1153573efc4bSKamal Heib .resize_cq = rxe_resize_cq, 1154d3456914SLeon Romanovsky 1155d3456914SLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_ah, rxe_ah, ibah), 1156e39afe3dSLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_cq, rxe_cq, ibcq), 115721a428a0SLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_pd, rxe_pd, ibpd), 115868e326deSLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_srq, rxe_srq, ibsrq), 1159a2a074efSLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_ucontext, rxe_ucontext, ibuc), 1160573efc4bSKamal Heib }; 1161573efc4bSKamal Heib 116266920e1bSSteve Wise int rxe_register_device(struct rxe_dev *rxe, const char *ibdev_name) 11638700e3e7SMoni Shoua { 11648700e3e7SMoni Shoua int err; 11658700e3e7SMoni Shoua struct ib_device *dev = &rxe->ib_dev; 11663192c53eSThomas Bogendoerfer struct crypto_shash *tfm; 11678700e3e7SMoni Shoua 11688700e3e7SMoni Shoua strlcpy(dev->node_desc, "rxe", sizeof(dev->node_desc)); 11698700e3e7SMoni Shoua 11708700e3e7SMoni Shoua dev->node_type = RDMA_NODE_IB_CA; 11718700e3e7SMoni Shoua dev->phys_port_cnt = 1; 117267cf3623SSagi Grimberg dev->num_comp_vectors = num_possible_cpus(); 117385e9f1dbSBart Van Assche dev->dev.parent = rxe_dma_device(rxe); 11748700e3e7SMoni Shoua dev->local_dma_lkey = 0; 11754d6f2859SYuval Shaia addrconf_addr_eui48((unsigned char *)&dev->node_guid, 11764d6f2859SYuval Shaia rxe->ndev->dev_addr); 11770bbb3b74SBart Van Assche dev->dev.dma_ops = &dma_virt_ops; 117897458fd5SBart Van Assche dev->dev.dma_parms = &rxe->dma_parms; 117997458fd5SBart Van Assche rxe->dma_parms = (struct device_dma_parameters) 118097458fd5SBart Van Assche { .max_segment_size = SZ_2G }; 118156012e1cSyonatanc dma_coerce_mask_and_coherent(&dev->dev, 1182efc365e7SMikhail Malygin dma_get_required_mask(&dev->dev)); 11838700e3e7SMoni Shoua 11848700e3e7SMoni Shoua dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT) 11858700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) 11868700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_DEVICE) 11878700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_PORT) 11888700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_ALLOC_PD) 11898700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DEALLOC_PD) 11908700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_SRQ) 11918700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_SRQ) 11928700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_SRQ) 11938700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_SRQ) 11948700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_SRQ_RECV) 11958700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_QP) 11968700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_QP) 11978700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_QP) 11988700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_QP) 11998700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_SEND) 12008700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_RECV) 12018700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_CQ) 12028700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_RESIZE_CQ) 12038700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_CQ) 12048700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POLL_CQ) 12058700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_PEEK_CQ) 12068700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) 12078700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_REG_MR) 12088700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DEREG_MR) 12098700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_AH) 12108700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_AH) 12118700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_AH) 12128700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_AH) 12138700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_ATTACH_MCAST) 12148700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DETACH_MCAST) 12158700e3e7SMoni Shoua ; 12168700e3e7SMoni Shoua 1217573efc4bSKamal Heib ib_set_device_ops(dev, &rxe_dev_ops); 12184c173f59SJason Gunthorpe err = ib_device_set_netdev(&rxe->ib_dev, rxe->ndev, 1); 12194c173f59SJason Gunthorpe if (err) 12204c173f59SJason Gunthorpe return err; 12218700e3e7SMoni Shoua 12223192c53eSThomas Bogendoerfer tfm = crypto_alloc_shash("crc32", 0, 0); 12233192c53eSThomas Bogendoerfer if (IS_ERR(tfm)) { 122427b0b832SColin Ian King pr_err("failed to allocate crc algorithm err:%ld\n", 12253192c53eSThomas Bogendoerfer PTR_ERR(tfm)); 12263192c53eSThomas Bogendoerfer return PTR_ERR(tfm); 1227cee2688eSyonatanc } 12283192c53eSThomas Bogendoerfer rxe->tfm = tfm; 1229cee2688eSyonatanc 1230508a523fSParav Pandit rdma_set_device_sysfs_group(dev, &rxe_attr_group); 123166920e1bSSteve Wise err = ib_register_device(dev, ibdev_name); 1232c367074bSJason Gunthorpe if (err) 123361013828SKamal Heib pr_warn("%s failed with error %d\n", __func__, err); 1234cee2688eSyonatanc 1235ca22354bSJason Gunthorpe /* 1236ca22354bSJason Gunthorpe * Note that rxe may be invalid at this point if another thread 1237ca22354bSJason Gunthorpe * unregistered it. 1238ca22354bSJason Gunthorpe */ 12398700e3e7SMoni Shoua return err; 12408700e3e7SMoni Shoua } 1241