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> 368700e3e7SMoni Shoua #include "rxe.h" 378700e3e7SMoni Shoua #include "rxe_loc.h" 388700e3e7SMoni Shoua #include "rxe_queue.h" 390b1e5b99SYonatan Cohen #include "rxe_hw_counters.h" 408700e3e7SMoni Shoua 418700e3e7SMoni Shoua static int rxe_query_device(struct ib_device *dev, 428700e3e7SMoni Shoua struct ib_device_attr *attr, 438700e3e7SMoni Shoua struct ib_udata *uhw) 448700e3e7SMoni Shoua { 458700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 468700e3e7SMoni Shoua 478700e3e7SMoni Shoua if (uhw->inlen || uhw->outlen) 488700e3e7SMoni Shoua return -EINVAL; 498700e3e7SMoni Shoua 508700e3e7SMoni Shoua *attr = rxe->attr; 518700e3e7SMoni Shoua return 0; 528700e3e7SMoni Shoua } 538700e3e7SMoni Shoua 548700e3e7SMoni Shoua static int rxe_query_port(struct ib_device *dev, 558700e3e7SMoni Shoua u8 port_num, struct ib_port_attr *attr) 568700e3e7SMoni Shoua { 578700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 588700e3e7SMoni Shoua struct rxe_port *port; 5959590b8aSYuval Shaia int rc; 608700e3e7SMoni Shoua 618700e3e7SMoni Shoua port = &rxe->port; 628700e3e7SMoni Shoua 63c4550c63SOr Gerlitz /* *attr being zeroed by the caller, avoid zeroing it here */ 648700e3e7SMoni Shoua *attr = port->attr; 658700e3e7SMoni Shoua 668700e3e7SMoni Shoua mutex_lock(&rxe->usdev_lock); 67d4186194SYuval Shaia rc = ib_get_eth_speed(dev, port_num, &attr->active_speed, 68e404f945SParav Pandit &attr->active_width); 695736c7c4SAndrew Boyer 705736c7c4SAndrew Boyer if (attr->state == IB_PORT_ACTIVE) 715736c7c4SAndrew Boyer attr->phys_state = RDMA_LINK_PHYS_STATE_LINK_UP; 725736c7c4SAndrew Boyer else if (dev_get_flags(rxe->ndev) & IFF_UP) 735736c7c4SAndrew Boyer attr->phys_state = RDMA_LINK_PHYS_STATE_POLLING; 745736c7c4SAndrew Boyer else 755736c7c4SAndrew Boyer attr->phys_state = RDMA_LINK_PHYS_STATE_DISABLED; 765736c7c4SAndrew Boyer 778700e3e7SMoni Shoua mutex_unlock(&rxe->usdev_lock); 788700e3e7SMoni Shoua 79d4186194SYuval Shaia return rc; 808700e3e7SMoni Shoua } 818700e3e7SMoni Shoua 828700e3e7SMoni Shoua static struct net_device *rxe_get_netdev(struct ib_device *device, 838700e3e7SMoni Shoua u8 port_num) 848700e3e7SMoni Shoua { 858700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(device); 868700e3e7SMoni Shoua 878700e3e7SMoni Shoua if (rxe->ndev) { 888700e3e7SMoni Shoua dev_hold(rxe->ndev); 898700e3e7SMoni Shoua return rxe->ndev; 908700e3e7SMoni Shoua } 918700e3e7SMoni Shoua 928700e3e7SMoni Shoua return NULL; 938700e3e7SMoni Shoua } 948700e3e7SMoni Shoua 958700e3e7SMoni Shoua static int rxe_query_pkey(struct ib_device *device, 968700e3e7SMoni Shoua u8 port_num, u16 index, u16 *pkey) 978700e3e7SMoni Shoua { 988700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(device); 998700e3e7SMoni Shoua struct rxe_port *port; 1008700e3e7SMoni Shoua 1018700e3e7SMoni Shoua port = &rxe->port; 1028700e3e7SMoni Shoua 1038700e3e7SMoni Shoua if (unlikely(index >= port->attr.pkey_tbl_len)) { 10485e9f1dbSBart Van Assche dev_warn(device->dev.parent, "invalid index = %d\n", 1058700e3e7SMoni Shoua index); 1068700e3e7SMoni Shoua goto err1; 1078700e3e7SMoni Shoua } 1088700e3e7SMoni Shoua 1098700e3e7SMoni Shoua *pkey = port->pkey_tbl[index]; 1108700e3e7SMoni Shoua return 0; 1118700e3e7SMoni Shoua 1128700e3e7SMoni Shoua err1: 1138700e3e7SMoni Shoua return -EINVAL; 1148700e3e7SMoni Shoua } 1158700e3e7SMoni Shoua 1168700e3e7SMoni Shoua static int rxe_modify_device(struct ib_device *dev, 1178700e3e7SMoni Shoua int mask, struct ib_device_modify *attr) 1188700e3e7SMoni Shoua { 1198700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1208700e3e7SMoni Shoua 1218700e3e7SMoni Shoua if (mask & IB_DEVICE_MODIFY_SYS_IMAGE_GUID) 1228700e3e7SMoni Shoua rxe->attr.sys_image_guid = cpu_to_be64(attr->sys_image_guid); 1238700e3e7SMoni Shoua 1248700e3e7SMoni Shoua if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 1258700e3e7SMoni Shoua memcpy(rxe->ib_dev.node_desc, 1268700e3e7SMoni Shoua attr->node_desc, sizeof(rxe->ib_dev.node_desc)); 1278700e3e7SMoni Shoua } 1288700e3e7SMoni Shoua 1298700e3e7SMoni Shoua return 0; 1308700e3e7SMoni Shoua } 1318700e3e7SMoni Shoua 1328700e3e7SMoni Shoua static int rxe_modify_port(struct ib_device *dev, 1338700e3e7SMoni Shoua u8 port_num, int mask, struct ib_port_modify *attr) 1348700e3e7SMoni Shoua { 1358700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1368700e3e7SMoni Shoua struct rxe_port *port; 1378700e3e7SMoni Shoua 1388700e3e7SMoni Shoua port = &rxe->port; 1398700e3e7SMoni Shoua 1408700e3e7SMoni Shoua port->attr.port_cap_flags |= attr->set_port_cap_mask; 1418700e3e7SMoni Shoua port->attr.port_cap_flags &= ~attr->clr_port_cap_mask; 1428700e3e7SMoni Shoua 1438700e3e7SMoni Shoua if (mask & IB_PORT_RESET_QKEY_CNTR) 1448700e3e7SMoni Shoua port->attr.qkey_viol_cntr = 0; 1458700e3e7SMoni Shoua 1468700e3e7SMoni Shoua return 0; 1478700e3e7SMoni Shoua } 1488700e3e7SMoni Shoua 1498700e3e7SMoni Shoua static enum rdma_link_layer rxe_get_link_layer(struct ib_device *dev, 1508700e3e7SMoni Shoua u8 port_num) 1518700e3e7SMoni Shoua { 1528700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1538700e3e7SMoni Shoua 154839f5ac0SBart Van Assche return rxe_link_layer(rxe, port_num); 1558700e3e7SMoni Shoua } 1568700e3e7SMoni Shoua 1578700e3e7SMoni Shoua static struct ib_ucontext *rxe_alloc_ucontext(struct ib_device *dev, 1588700e3e7SMoni Shoua struct ib_udata *udata) 1598700e3e7SMoni Shoua { 1608700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1618700e3e7SMoni Shoua struct rxe_ucontext *uc; 1628700e3e7SMoni Shoua 1638700e3e7SMoni Shoua uc = rxe_alloc(&rxe->uc_pool); 1648700e3e7SMoni Shoua return uc ? &uc->ibuc : ERR_PTR(-ENOMEM); 1658700e3e7SMoni Shoua } 1668700e3e7SMoni Shoua 1678700e3e7SMoni Shoua static int rxe_dealloc_ucontext(struct ib_ucontext *ibuc) 1688700e3e7SMoni Shoua { 1698700e3e7SMoni Shoua struct rxe_ucontext *uc = to_ruc(ibuc); 1708700e3e7SMoni Shoua 1718700e3e7SMoni Shoua rxe_drop_ref(uc); 1728700e3e7SMoni Shoua return 0; 1738700e3e7SMoni Shoua } 1748700e3e7SMoni Shoua 1758700e3e7SMoni Shoua static int rxe_port_immutable(struct ib_device *dev, u8 port_num, 1768700e3e7SMoni Shoua struct ib_port_immutable *immutable) 1778700e3e7SMoni Shoua { 1788700e3e7SMoni Shoua int err; 1798700e3e7SMoni Shoua struct ib_port_attr attr; 1808700e3e7SMoni Shoua 181c4550c63SOr Gerlitz immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; 182c4550c63SOr Gerlitz 183c4550c63SOr Gerlitz err = ib_query_port(dev, port_num, &attr); 1848700e3e7SMoni Shoua if (err) 1858700e3e7SMoni Shoua return err; 1868700e3e7SMoni Shoua 1878700e3e7SMoni Shoua immutable->pkey_tbl_len = attr.pkey_tbl_len; 1888700e3e7SMoni Shoua immutable->gid_tbl_len = attr.gid_tbl_len; 1898700e3e7SMoni Shoua immutable->max_mad_size = IB_MGMT_MAD_SIZE; 1908700e3e7SMoni Shoua 1918700e3e7SMoni Shoua return 0; 1928700e3e7SMoni Shoua } 1938700e3e7SMoni Shoua 19421a428a0SLeon Romanovsky static int rxe_alloc_pd(struct ib_pd *ibpd, struct ib_ucontext *context, 1958700e3e7SMoni Shoua struct ib_udata *udata) 1968700e3e7SMoni Shoua { 19721a428a0SLeon Romanovsky struct rxe_dev *rxe = to_rdev(ibpd->device); 19821a428a0SLeon Romanovsky struct rxe_pd *pd = to_rpd(ibpd); 1998700e3e7SMoni Shoua 20021a428a0SLeon Romanovsky return rxe_add_to_pool(&rxe->pd_pool, &pd->pelem); 2018700e3e7SMoni Shoua } 2028700e3e7SMoni Shoua 20321a428a0SLeon Romanovsky static void rxe_dealloc_pd(struct ib_pd *ibpd) 2048700e3e7SMoni Shoua { 2058700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 2068700e3e7SMoni Shoua 2078700e3e7SMoni Shoua rxe_drop_ref(pd); 2088700e3e7SMoni Shoua } 2098700e3e7SMoni Shoua 21090898850SDasaratharaman Chandramouli static struct ib_ah *rxe_create_ah(struct ib_pd *ibpd, 21190898850SDasaratharaman Chandramouli struct rdma_ah_attr *attr, 212b090c4e3SGal Pressman u32 flags, 213477864c8SMoni Shoua struct ib_udata *udata) 214477864c8SMoni Shoua 2158700e3e7SMoni Shoua { 2168700e3e7SMoni Shoua int err; 2178700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 2188700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 2198700e3e7SMoni Shoua struct rxe_ah *ah; 2208700e3e7SMoni Shoua 2218700e3e7SMoni Shoua err = rxe_av_chk_attr(rxe, attr); 2228700e3e7SMoni Shoua if (err) 2232f229bcfSBart Van Assche return ERR_PTR(err); 2248700e3e7SMoni Shoua 2258700e3e7SMoni Shoua ah = rxe_alloc(&rxe->ah_pool); 2262f229bcfSBart Van Assche if (!ah) 2272f229bcfSBart Van Assche return ERR_PTR(-ENOMEM); 2288700e3e7SMoni Shoua 2298700e3e7SMoni Shoua rxe_add_ref(pd); 2308700e3e7SMoni Shoua ah->pd = pd; 2318700e3e7SMoni Shoua 232fa407188SKamal Heib rxe_init_av(attr, &ah->av); 2338700e3e7SMoni Shoua return &ah->ibah; 2348700e3e7SMoni Shoua } 2358700e3e7SMoni Shoua 23690898850SDasaratharaman Chandramouli static int rxe_modify_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr) 2378700e3e7SMoni Shoua { 2388700e3e7SMoni Shoua int err; 2398700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibah->device); 2408700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2418700e3e7SMoni Shoua 2428700e3e7SMoni Shoua err = rxe_av_chk_attr(rxe, attr); 2438700e3e7SMoni Shoua if (err) 2448700e3e7SMoni Shoua return err; 2458700e3e7SMoni Shoua 246fa407188SKamal Heib rxe_init_av(attr, &ah->av); 2478700e3e7SMoni Shoua return 0; 2488700e3e7SMoni Shoua } 2498700e3e7SMoni Shoua 25090898850SDasaratharaman Chandramouli static int rxe_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr) 2518700e3e7SMoni Shoua { 2528700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2538700e3e7SMoni Shoua 254eca7ddf9SDasaratharaman Chandramouli memset(attr, 0, sizeof(*attr)); 25544c58487SDasaratharaman Chandramouli attr->type = ibah->type; 2569c96f3d4SZhu Yanjun rxe_av_to_attr(&ah->av, attr); 2578700e3e7SMoni Shoua return 0; 2588700e3e7SMoni Shoua } 2598700e3e7SMoni Shoua 2602553ba21SGal Pressman static int rxe_destroy_ah(struct ib_ah *ibah, u32 flags) 2618700e3e7SMoni Shoua { 2628700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2638700e3e7SMoni Shoua 2648700e3e7SMoni Shoua rxe_drop_ref(ah->pd); 2658700e3e7SMoni Shoua rxe_drop_ref(ah); 2668700e3e7SMoni Shoua return 0; 2678700e3e7SMoni Shoua } 2688700e3e7SMoni Shoua 269d34ac5cdSBart Van Assche static int post_one_recv(struct rxe_rq *rq, const struct ib_recv_wr *ibwr) 2708700e3e7SMoni Shoua { 2718700e3e7SMoni Shoua int err; 2728700e3e7SMoni Shoua int i; 2738700e3e7SMoni Shoua u32 length; 2748700e3e7SMoni Shoua struct rxe_recv_wqe *recv_wqe; 2758700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 2768700e3e7SMoni Shoua 2778700e3e7SMoni Shoua if (unlikely(queue_full(rq->queue))) { 2788700e3e7SMoni Shoua err = -ENOMEM; 2798700e3e7SMoni Shoua goto err1; 2808700e3e7SMoni Shoua } 2818700e3e7SMoni Shoua 2828700e3e7SMoni Shoua if (unlikely(num_sge > rq->max_sge)) { 2838700e3e7SMoni Shoua err = -EINVAL; 2848700e3e7SMoni Shoua goto err1; 2858700e3e7SMoni Shoua } 2868700e3e7SMoni Shoua 2878700e3e7SMoni Shoua length = 0; 2888700e3e7SMoni Shoua for (i = 0; i < num_sge; i++) 2898700e3e7SMoni Shoua length += ibwr->sg_list[i].length; 2908700e3e7SMoni Shoua 2918700e3e7SMoni Shoua recv_wqe = producer_addr(rq->queue); 2928700e3e7SMoni Shoua recv_wqe->wr_id = ibwr->wr_id; 2938700e3e7SMoni Shoua recv_wqe->num_sge = num_sge; 2948700e3e7SMoni Shoua 2958700e3e7SMoni Shoua memcpy(recv_wqe->dma.sge, ibwr->sg_list, 2968700e3e7SMoni Shoua num_sge * sizeof(struct ib_sge)); 2978700e3e7SMoni Shoua 2988700e3e7SMoni Shoua recv_wqe->dma.length = length; 2998700e3e7SMoni Shoua recv_wqe->dma.resid = length; 3008700e3e7SMoni Shoua recv_wqe->dma.num_sge = num_sge; 3018700e3e7SMoni Shoua recv_wqe->dma.cur_sge = 0; 3028700e3e7SMoni Shoua recv_wqe->dma.sge_offset = 0; 3038700e3e7SMoni Shoua 3048700e3e7SMoni Shoua /* make sure all changes to the work queue are written before we 3058700e3e7SMoni Shoua * update the producer pointer 3068700e3e7SMoni Shoua */ 3078700e3e7SMoni Shoua smp_wmb(); 3088700e3e7SMoni Shoua 3098700e3e7SMoni Shoua advance_producer(rq->queue); 3108700e3e7SMoni Shoua return 0; 3118700e3e7SMoni Shoua 3128700e3e7SMoni Shoua err1: 3138700e3e7SMoni Shoua return err; 3148700e3e7SMoni Shoua } 3158700e3e7SMoni Shoua 3168700e3e7SMoni Shoua static struct ib_srq *rxe_create_srq(struct ib_pd *ibpd, 3178700e3e7SMoni Shoua struct ib_srq_init_attr *init, 3188700e3e7SMoni Shoua struct ib_udata *udata) 3198700e3e7SMoni Shoua { 3208700e3e7SMoni Shoua int err; 3218700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 3228700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 3238700e3e7SMoni Shoua struct rxe_srq *srq; 3248700e3e7SMoni Shoua struct ib_ucontext *context = udata ? ibpd->uobject->context : NULL; 3250c43ab37SJason Gunthorpe struct rxe_create_srq_resp __user *uresp = NULL; 3260c43ab37SJason Gunthorpe 3270c43ab37SJason Gunthorpe if (udata) { 3280c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 3290c43ab37SJason Gunthorpe return ERR_PTR(-EINVAL); 3300c43ab37SJason Gunthorpe uresp = udata->outbuf; 3310c43ab37SJason Gunthorpe } 3328700e3e7SMoni Shoua 3338700e3e7SMoni Shoua err = rxe_srq_chk_attr(rxe, NULL, &init->attr, IB_SRQ_INIT_MASK); 3348700e3e7SMoni Shoua if (err) 3358700e3e7SMoni Shoua goto err1; 3368700e3e7SMoni Shoua 3378700e3e7SMoni Shoua srq = rxe_alloc(&rxe->srq_pool); 3388700e3e7SMoni Shoua if (!srq) { 3398700e3e7SMoni Shoua err = -ENOMEM; 3408700e3e7SMoni Shoua goto err1; 3418700e3e7SMoni Shoua } 3428700e3e7SMoni Shoua 3438700e3e7SMoni Shoua rxe_add_index(srq); 3448700e3e7SMoni Shoua rxe_add_ref(pd); 3458700e3e7SMoni Shoua srq->pd = pd; 3468700e3e7SMoni Shoua 3470c43ab37SJason Gunthorpe err = rxe_srq_from_init(rxe, srq, init, context, uresp); 3488700e3e7SMoni Shoua if (err) 3498700e3e7SMoni Shoua goto err2; 3508700e3e7SMoni Shoua 3518700e3e7SMoni Shoua return &srq->ibsrq; 3528700e3e7SMoni Shoua 3538700e3e7SMoni Shoua err2: 3548700e3e7SMoni Shoua rxe_drop_ref(pd); 3558700e3e7SMoni Shoua rxe_drop_index(srq); 3568700e3e7SMoni Shoua rxe_drop_ref(srq); 3578700e3e7SMoni Shoua err1: 3588700e3e7SMoni Shoua return ERR_PTR(err); 3598700e3e7SMoni Shoua } 3608700e3e7SMoni Shoua 3618700e3e7SMoni Shoua static int rxe_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, 3628700e3e7SMoni Shoua enum ib_srq_attr_mask mask, 3638700e3e7SMoni Shoua struct ib_udata *udata) 3648700e3e7SMoni Shoua { 3658700e3e7SMoni Shoua int err; 3668700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3678700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibsrq->device); 3680c43ab37SJason Gunthorpe struct rxe_modify_srq_cmd ucmd = {}; 3690c43ab37SJason Gunthorpe 3700c43ab37SJason Gunthorpe if (udata) { 3710c43ab37SJason Gunthorpe if (udata->inlen < sizeof(ucmd)) 3720c43ab37SJason Gunthorpe return -EINVAL; 3730c43ab37SJason Gunthorpe 3740c43ab37SJason Gunthorpe err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)); 3750c43ab37SJason Gunthorpe if (err) 3760c43ab37SJason Gunthorpe return err; 3770c43ab37SJason Gunthorpe } 3788700e3e7SMoni Shoua 3798700e3e7SMoni Shoua err = rxe_srq_chk_attr(rxe, srq, attr, mask); 3808700e3e7SMoni Shoua if (err) 3818700e3e7SMoni Shoua goto err1; 3828700e3e7SMoni Shoua 3830c43ab37SJason Gunthorpe err = rxe_srq_from_attr(rxe, srq, attr, mask, &ucmd); 3848700e3e7SMoni Shoua if (err) 3858700e3e7SMoni Shoua goto err1; 3868700e3e7SMoni Shoua 3878700e3e7SMoni Shoua return 0; 3888700e3e7SMoni Shoua 3898700e3e7SMoni Shoua err1: 3908700e3e7SMoni Shoua return err; 3918700e3e7SMoni Shoua } 3928700e3e7SMoni Shoua 3938700e3e7SMoni Shoua static int rxe_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr) 3948700e3e7SMoni Shoua { 3958700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3968700e3e7SMoni Shoua 3978700e3e7SMoni Shoua if (srq->error) 3988700e3e7SMoni Shoua return -EINVAL; 3998700e3e7SMoni Shoua 4008700e3e7SMoni Shoua attr->max_wr = srq->rq.queue->buf->index_mask; 4018700e3e7SMoni Shoua attr->max_sge = srq->rq.max_sge; 4028700e3e7SMoni Shoua attr->srq_limit = srq->limit; 4038700e3e7SMoni Shoua return 0; 4048700e3e7SMoni Shoua } 4058700e3e7SMoni Shoua 4068700e3e7SMoni Shoua static int rxe_destroy_srq(struct ib_srq *ibsrq) 4078700e3e7SMoni Shoua { 4088700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 4098700e3e7SMoni Shoua 4108700e3e7SMoni Shoua if (srq->rq.queue) 4118700e3e7SMoni Shoua rxe_queue_cleanup(srq->rq.queue); 4128700e3e7SMoni Shoua 4138700e3e7SMoni Shoua rxe_drop_ref(srq->pd); 4148700e3e7SMoni Shoua rxe_drop_index(srq); 4158700e3e7SMoni Shoua rxe_drop_ref(srq); 4168700e3e7SMoni Shoua 4178700e3e7SMoni Shoua return 0; 4188700e3e7SMoni Shoua } 4198700e3e7SMoni Shoua 420d34ac5cdSBart Van Assche static int rxe_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr, 421d34ac5cdSBart Van Assche const struct ib_recv_wr **bad_wr) 4228700e3e7SMoni Shoua { 4238700e3e7SMoni Shoua int err = 0; 4248700e3e7SMoni Shoua unsigned long flags; 4258700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 4268700e3e7SMoni Shoua 4278700e3e7SMoni Shoua spin_lock_irqsave(&srq->rq.producer_lock, flags); 4288700e3e7SMoni Shoua 4298700e3e7SMoni Shoua while (wr) { 4308700e3e7SMoni Shoua err = post_one_recv(&srq->rq, wr); 4318700e3e7SMoni Shoua if (unlikely(err)) 4328700e3e7SMoni Shoua break; 4338700e3e7SMoni Shoua wr = wr->next; 4348700e3e7SMoni Shoua } 4358700e3e7SMoni Shoua 4368700e3e7SMoni Shoua spin_unlock_irqrestore(&srq->rq.producer_lock, flags); 4378700e3e7SMoni Shoua 4388700e3e7SMoni Shoua if (err) 4398700e3e7SMoni Shoua *bad_wr = wr; 4408700e3e7SMoni Shoua 4418700e3e7SMoni Shoua return err; 4428700e3e7SMoni Shoua } 4438700e3e7SMoni Shoua 4448700e3e7SMoni Shoua static struct ib_qp *rxe_create_qp(struct ib_pd *ibpd, 4458700e3e7SMoni Shoua struct ib_qp_init_attr *init, 4468700e3e7SMoni Shoua struct ib_udata *udata) 4478700e3e7SMoni Shoua { 4488700e3e7SMoni Shoua int err; 4498700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 4508700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 4518700e3e7SMoni Shoua struct rxe_qp *qp; 4520c43ab37SJason Gunthorpe struct rxe_create_qp_resp __user *uresp = NULL; 4530c43ab37SJason Gunthorpe 4540c43ab37SJason Gunthorpe if (udata) { 4550c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 4560c43ab37SJason Gunthorpe return ERR_PTR(-EINVAL); 4570c43ab37SJason Gunthorpe uresp = udata->outbuf; 4580c43ab37SJason Gunthorpe } 4598700e3e7SMoni Shoua 4608700e3e7SMoni Shoua err = rxe_qp_chk_init(rxe, init); 4618700e3e7SMoni Shoua if (err) 4628700e3e7SMoni Shoua goto err1; 4638700e3e7SMoni Shoua 4648700e3e7SMoni Shoua qp = rxe_alloc(&rxe->qp_pool); 4658700e3e7SMoni Shoua if (!qp) { 4668700e3e7SMoni Shoua err = -ENOMEM; 4678700e3e7SMoni Shoua goto err1; 4688700e3e7SMoni Shoua } 4698700e3e7SMoni Shoua 4708700e3e7SMoni Shoua if (udata) { 4718700e3e7SMoni Shoua if (udata->inlen) { 4728700e3e7SMoni Shoua err = -EINVAL; 4735b9ea16cSAndrew Boyer goto err2; 4748700e3e7SMoni Shoua } 4758700e3e7SMoni Shoua qp->is_user = 1; 4768700e3e7SMoni Shoua } 4778700e3e7SMoni Shoua 4788700e3e7SMoni Shoua rxe_add_index(qp); 4798700e3e7SMoni Shoua 480e00b64f7SShamir Rabinovitch err = rxe_qp_from_init(rxe, qp, pd, init, uresp, ibpd, udata); 4818700e3e7SMoni Shoua if (err) 4825b9ea16cSAndrew Boyer goto err3; 4838700e3e7SMoni Shoua 4848700e3e7SMoni Shoua return &qp->ibqp; 4858700e3e7SMoni Shoua 4865b9ea16cSAndrew Boyer err3: 4878700e3e7SMoni Shoua rxe_drop_index(qp); 4885b9ea16cSAndrew Boyer err2: 4898700e3e7SMoni Shoua rxe_drop_ref(qp); 4908700e3e7SMoni Shoua err1: 4918700e3e7SMoni Shoua return ERR_PTR(err); 4928700e3e7SMoni Shoua } 4938700e3e7SMoni Shoua 4948700e3e7SMoni Shoua static int rxe_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 4958700e3e7SMoni Shoua int mask, struct ib_udata *udata) 4968700e3e7SMoni Shoua { 4978700e3e7SMoni Shoua int err; 4988700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 4998700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 5008700e3e7SMoni Shoua 5018700e3e7SMoni Shoua err = rxe_qp_chk_attr(rxe, qp, attr, mask); 5028700e3e7SMoni Shoua if (err) 5038700e3e7SMoni Shoua goto err1; 5048700e3e7SMoni Shoua 5058700e3e7SMoni Shoua err = rxe_qp_from_attr(qp, attr, mask, udata); 5068700e3e7SMoni Shoua if (err) 5078700e3e7SMoni Shoua goto err1; 5088700e3e7SMoni Shoua 5098700e3e7SMoni Shoua return 0; 5108700e3e7SMoni Shoua 5118700e3e7SMoni Shoua err1: 5128700e3e7SMoni Shoua return err; 5138700e3e7SMoni Shoua } 5148700e3e7SMoni Shoua 5158700e3e7SMoni Shoua static int rxe_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 5168700e3e7SMoni Shoua int mask, struct ib_qp_init_attr *init) 5178700e3e7SMoni Shoua { 5188700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 5198700e3e7SMoni Shoua 5208700e3e7SMoni Shoua rxe_qp_to_init(qp, init); 5218700e3e7SMoni Shoua rxe_qp_to_attr(qp, attr, mask); 5228700e3e7SMoni Shoua 5238700e3e7SMoni Shoua return 0; 5248700e3e7SMoni Shoua } 5258700e3e7SMoni Shoua 5268700e3e7SMoni Shoua static int rxe_destroy_qp(struct ib_qp *ibqp) 5278700e3e7SMoni Shoua { 5288700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 5298700e3e7SMoni Shoua 5308700e3e7SMoni Shoua rxe_qp_destroy(qp); 5318700e3e7SMoni Shoua rxe_drop_index(qp); 5328700e3e7SMoni Shoua rxe_drop_ref(qp); 5338700e3e7SMoni Shoua return 0; 5348700e3e7SMoni Shoua } 5358700e3e7SMoni Shoua 536f696bf6dSBart Van Assche static int validate_send_wr(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 5378700e3e7SMoni Shoua unsigned int mask, unsigned int length) 5388700e3e7SMoni Shoua { 5398700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 5408700e3e7SMoni Shoua struct rxe_sq *sq = &qp->sq; 5418700e3e7SMoni Shoua 5428700e3e7SMoni Shoua if (unlikely(num_sge > sq->max_sge)) 5438700e3e7SMoni Shoua goto err1; 5448700e3e7SMoni Shoua 5458700e3e7SMoni Shoua if (unlikely(mask & WR_ATOMIC_MASK)) { 5468700e3e7SMoni Shoua if (length < 8) 5478700e3e7SMoni Shoua goto err1; 5488700e3e7SMoni Shoua 5498700e3e7SMoni Shoua if (atomic_wr(ibwr)->remote_addr & 0x7) 5508700e3e7SMoni Shoua goto err1; 5518700e3e7SMoni Shoua } 5528700e3e7SMoni Shoua 5538700e3e7SMoni Shoua if (unlikely((ibwr->send_flags & IB_SEND_INLINE) && 5548700e3e7SMoni Shoua (length > sq->max_inline))) 5558700e3e7SMoni Shoua goto err1; 5568700e3e7SMoni Shoua 5578700e3e7SMoni Shoua return 0; 5588700e3e7SMoni Shoua 5598700e3e7SMoni Shoua err1: 5608700e3e7SMoni Shoua return -EINVAL; 5618700e3e7SMoni Shoua } 5628700e3e7SMoni Shoua 5638700e3e7SMoni Shoua static void init_send_wr(struct rxe_qp *qp, struct rxe_send_wr *wr, 564f696bf6dSBart Van Assche const struct ib_send_wr *ibwr) 5658700e3e7SMoni Shoua { 5668700e3e7SMoni Shoua wr->wr_id = ibwr->wr_id; 5678700e3e7SMoni Shoua wr->num_sge = ibwr->num_sge; 5688700e3e7SMoni Shoua wr->opcode = ibwr->opcode; 5698700e3e7SMoni Shoua wr->send_flags = ibwr->send_flags; 5708700e3e7SMoni Shoua 5718700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_UD || 5728700e3e7SMoni Shoua qp_type(qp) == IB_QPT_SMI || 5738700e3e7SMoni Shoua qp_type(qp) == IB_QPT_GSI) { 5748700e3e7SMoni Shoua wr->wr.ud.remote_qpn = ud_wr(ibwr)->remote_qpn; 5758700e3e7SMoni Shoua wr->wr.ud.remote_qkey = ud_wr(ibwr)->remote_qkey; 5768700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_GSI) 5778700e3e7SMoni Shoua wr->wr.ud.pkey_index = ud_wr(ibwr)->pkey_index; 5788700e3e7SMoni Shoua if (wr->opcode == IB_WR_SEND_WITH_IMM) 5798700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 5808700e3e7SMoni Shoua } else { 5818700e3e7SMoni Shoua switch (wr->opcode) { 5828700e3e7SMoni Shoua case IB_WR_RDMA_WRITE_WITH_IMM: 5838700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 584ea6ee93bSBart Van Assche /* fall through */ 5858700e3e7SMoni Shoua case IB_WR_RDMA_READ: 5868700e3e7SMoni Shoua case IB_WR_RDMA_WRITE: 5878700e3e7SMoni Shoua wr->wr.rdma.remote_addr = rdma_wr(ibwr)->remote_addr; 5888700e3e7SMoni Shoua wr->wr.rdma.rkey = rdma_wr(ibwr)->rkey; 5898700e3e7SMoni Shoua break; 5908700e3e7SMoni Shoua case IB_WR_SEND_WITH_IMM: 5918700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 5928700e3e7SMoni Shoua break; 5938700e3e7SMoni Shoua case IB_WR_SEND_WITH_INV: 5948700e3e7SMoni Shoua wr->ex.invalidate_rkey = ibwr->ex.invalidate_rkey; 5958700e3e7SMoni Shoua break; 5968700e3e7SMoni Shoua case IB_WR_ATOMIC_CMP_AND_SWP: 5978700e3e7SMoni Shoua case IB_WR_ATOMIC_FETCH_AND_ADD: 5988700e3e7SMoni Shoua wr->wr.atomic.remote_addr = 5998700e3e7SMoni Shoua atomic_wr(ibwr)->remote_addr; 6008700e3e7SMoni Shoua wr->wr.atomic.compare_add = 6018700e3e7SMoni Shoua atomic_wr(ibwr)->compare_add; 6028700e3e7SMoni Shoua wr->wr.atomic.swap = atomic_wr(ibwr)->swap; 6038700e3e7SMoni Shoua wr->wr.atomic.rkey = atomic_wr(ibwr)->rkey; 6048700e3e7SMoni Shoua break; 6058700e3e7SMoni Shoua case IB_WR_LOCAL_INV: 6068700e3e7SMoni Shoua wr->ex.invalidate_rkey = ibwr->ex.invalidate_rkey; 6078700e3e7SMoni Shoua break; 6088700e3e7SMoni Shoua case IB_WR_REG_MR: 6098700e3e7SMoni Shoua wr->wr.reg.mr = reg_wr(ibwr)->mr; 6108700e3e7SMoni Shoua wr->wr.reg.key = reg_wr(ibwr)->key; 6118700e3e7SMoni Shoua wr->wr.reg.access = reg_wr(ibwr)->access; 6128700e3e7SMoni Shoua break; 6138700e3e7SMoni Shoua default: 6148700e3e7SMoni Shoua break; 6158700e3e7SMoni Shoua } 6168700e3e7SMoni Shoua } 6178700e3e7SMoni Shoua } 6188700e3e7SMoni Shoua 619f696bf6dSBart Van Assche static int init_send_wqe(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 6208700e3e7SMoni Shoua unsigned int mask, unsigned int length, 6218700e3e7SMoni Shoua struct rxe_send_wqe *wqe) 6228700e3e7SMoni Shoua { 6238700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 6248700e3e7SMoni Shoua struct ib_sge *sge; 6258700e3e7SMoni Shoua int i; 6268700e3e7SMoni Shoua u8 *p; 6278700e3e7SMoni Shoua 6288700e3e7SMoni Shoua init_send_wr(qp, &wqe->wr, ibwr); 6298700e3e7SMoni Shoua 6308700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_UD || 6318700e3e7SMoni Shoua qp_type(qp) == IB_QPT_SMI || 6328700e3e7SMoni Shoua qp_type(qp) == IB_QPT_GSI) 6338700e3e7SMoni Shoua memcpy(&wqe->av, &to_rah(ud_wr(ibwr)->ah)->av, sizeof(wqe->av)); 6348700e3e7SMoni Shoua 6358700e3e7SMoni Shoua if (unlikely(ibwr->send_flags & IB_SEND_INLINE)) { 6368700e3e7SMoni Shoua p = wqe->dma.inline_data; 6378700e3e7SMoni Shoua 6388700e3e7SMoni Shoua sge = ibwr->sg_list; 6398700e3e7SMoni Shoua for (i = 0; i < num_sge; i++, sge++) { 6408700e3e7SMoni Shoua memcpy(p, (void *)(uintptr_t)sge->addr, 6418700e3e7SMoni Shoua sge->length); 6428700e3e7SMoni Shoua 6438700e3e7SMoni Shoua p += sge->length; 6448700e3e7SMoni Shoua } 6458700e3e7SMoni Shoua } else if (mask & WR_REG_MASK) { 6468700e3e7SMoni Shoua wqe->mask = mask; 6478700e3e7SMoni Shoua wqe->state = wqe_state_posted; 6488700e3e7SMoni Shoua return 0; 6498700e3e7SMoni Shoua } else 6508700e3e7SMoni Shoua memcpy(wqe->dma.sge, ibwr->sg_list, 6518700e3e7SMoni Shoua num_sge * sizeof(struct ib_sge)); 6528700e3e7SMoni Shoua 653a6544a62SBart Van Assche wqe->iova = mask & WR_ATOMIC_MASK ? atomic_wr(ibwr)->remote_addr : 654a6544a62SBart Van Assche mask & WR_READ_OR_WRITE_MASK ? rdma_wr(ibwr)->remote_addr : 0; 6558700e3e7SMoni Shoua wqe->mask = mask; 6568700e3e7SMoni Shoua wqe->dma.length = length; 6578700e3e7SMoni Shoua wqe->dma.resid = length; 6588700e3e7SMoni Shoua wqe->dma.num_sge = num_sge; 6598700e3e7SMoni Shoua wqe->dma.cur_sge = 0; 6608700e3e7SMoni Shoua wqe->dma.sge_offset = 0; 6618700e3e7SMoni Shoua wqe->state = wqe_state_posted; 6628700e3e7SMoni Shoua wqe->ssn = atomic_add_return(1, &qp->ssn); 6638700e3e7SMoni Shoua 6648700e3e7SMoni Shoua return 0; 6658700e3e7SMoni Shoua } 6668700e3e7SMoni Shoua 667f696bf6dSBart Van Assche static int post_one_send(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 668e404f945SParav Pandit unsigned int mask, u32 length) 6698700e3e7SMoni Shoua { 6708700e3e7SMoni Shoua int err; 6718700e3e7SMoni Shoua struct rxe_sq *sq = &qp->sq; 6728700e3e7SMoni Shoua struct rxe_send_wqe *send_wqe; 6738700e3e7SMoni Shoua unsigned long flags; 6748700e3e7SMoni Shoua 6758700e3e7SMoni Shoua err = validate_send_wr(qp, ibwr, mask, length); 6768700e3e7SMoni Shoua if (err) 6778700e3e7SMoni Shoua return err; 6788700e3e7SMoni Shoua 6798700e3e7SMoni Shoua spin_lock_irqsave(&qp->sq.sq_lock, flags); 6808700e3e7SMoni Shoua 6818700e3e7SMoni Shoua if (unlikely(queue_full(sq->queue))) { 6828700e3e7SMoni Shoua err = -ENOMEM; 6838700e3e7SMoni Shoua goto err1; 6848700e3e7SMoni Shoua } 6858700e3e7SMoni Shoua 6868700e3e7SMoni Shoua send_wqe = producer_addr(sq->queue); 6878700e3e7SMoni Shoua 6888700e3e7SMoni Shoua err = init_send_wqe(qp, ibwr, mask, length, send_wqe); 6898700e3e7SMoni Shoua if (unlikely(err)) 6908700e3e7SMoni Shoua goto err1; 6918700e3e7SMoni Shoua 6928700e3e7SMoni Shoua /* 6938700e3e7SMoni Shoua * make sure all changes to the work queue are 6948700e3e7SMoni Shoua * written before we update the producer pointer 6958700e3e7SMoni Shoua */ 6968700e3e7SMoni Shoua smp_wmb(); 6978700e3e7SMoni Shoua 6988700e3e7SMoni Shoua advance_producer(sq->queue); 6998700e3e7SMoni Shoua spin_unlock_irqrestore(&qp->sq.sq_lock, flags); 7008700e3e7SMoni Shoua 7018700e3e7SMoni Shoua return 0; 7028700e3e7SMoni Shoua 7038700e3e7SMoni Shoua err1: 7048700e3e7SMoni Shoua spin_unlock_irqrestore(&qp->sq.sq_lock, flags); 7058700e3e7SMoni Shoua return err; 7068700e3e7SMoni Shoua } 7078700e3e7SMoni Shoua 708d34ac5cdSBart Van Assche static int rxe_post_send_kernel(struct rxe_qp *qp, const struct ib_send_wr *wr, 709d34ac5cdSBart Van Assche const struct ib_send_wr **bad_wr) 7108700e3e7SMoni Shoua { 7118700e3e7SMoni Shoua int err = 0; 7128700e3e7SMoni Shoua unsigned int mask; 7138700e3e7SMoni Shoua unsigned int length = 0; 7148700e3e7SMoni Shoua int i; 7158700e3e7SMoni Shoua 7168700e3e7SMoni Shoua while (wr) { 7178700e3e7SMoni Shoua mask = wr_opcode_mask(wr->opcode, qp); 7188700e3e7SMoni Shoua if (unlikely(!mask)) { 7198700e3e7SMoni Shoua err = -EINVAL; 7208700e3e7SMoni Shoua *bad_wr = wr; 7218700e3e7SMoni Shoua break; 7228700e3e7SMoni Shoua } 7238700e3e7SMoni Shoua 7248700e3e7SMoni Shoua if (unlikely((wr->send_flags & IB_SEND_INLINE) && 7258700e3e7SMoni Shoua !(mask & WR_INLINE_MASK))) { 7268700e3e7SMoni Shoua err = -EINVAL; 7278700e3e7SMoni Shoua *bad_wr = wr; 7288700e3e7SMoni Shoua break; 7298700e3e7SMoni Shoua } 7308700e3e7SMoni Shoua 7318700e3e7SMoni Shoua length = 0; 7328700e3e7SMoni Shoua for (i = 0; i < wr->num_sge; i++) 7338700e3e7SMoni Shoua length += wr->sg_list[i].length; 7348700e3e7SMoni Shoua 7358700e3e7SMoni Shoua err = post_one_send(qp, wr, mask, length); 7368700e3e7SMoni Shoua 7378700e3e7SMoni Shoua if (err) { 7388700e3e7SMoni Shoua *bad_wr = wr; 7398700e3e7SMoni Shoua break; 7408700e3e7SMoni Shoua } 7418700e3e7SMoni Shoua wr = wr->next; 7428700e3e7SMoni Shoua } 7438700e3e7SMoni Shoua 7441661d3b0SAlexandru Moise rxe_run_task(&qp->req.task, 1); 7456f301e06SBart Van Assche if (unlikely(qp->req.state == QP_STATE_ERROR)) 7466f301e06SBart Van Assche rxe_run_task(&qp->comp.task, 1); 7478700e3e7SMoni Shoua 7488700e3e7SMoni Shoua return err; 7498700e3e7SMoni Shoua } 7508700e3e7SMoni Shoua 751d34ac5cdSBart Van Assche static int rxe_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, 752d34ac5cdSBart Van Assche const struct ib_send_wr **bad_wr) 753063af595SParav Pandit { 754063af595SParav Pandit struct rxe_qp *qp = to_rqp(ibqp); 755063af595SParav Pandit 756063af595SParav Pandit if (unlikely(!qp->valid)) { 757063af595SParav Pandit *bad_wr = wr; 758063af595SParav Pandit return -EINVAL; 759063af595SParav Pandit } 760063af595SParav Pandit 761063af595SParav Pandit if (unlikely(qp->req.state < QP_STATE_READY)) { 762063af595SParav Pandit *bad_wr = wr; 763063af595SParav Pandit return -EINVAL; 764063af595SParav Pandit } 765063af595SParav Pandit 766063af595SParav Pandit if (qp->is_user) { 767063af595SParav Pandit /* Utilize process context to do protocol processing */ 768063af595SParav Pandit rxe_run_task(&qp->req.task, 0); 769063af595SParav Pandit return 0; 770063af595SParav Pandit } else 771063af595SParav Pandit return rxe_post_send_kernel(qp, wr, bad_wr); 772063af595SParav Pandit } 773063af595SParav Pandit 774d34ac5cdSBart Van Assche static int rxe_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr, 775d34ac5cdSBart Van Assche const struct ib_recv_wr **bad_wr) 7768700e3e7SMoni Shoua { 7778700e3e7SMoni Shoua int err = 0; 7788700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 7798700e3e7SMoni Shoua struct rxe_rq *rq = &qp->rq; 7808700e3e7SMoni Shoua unsigned long flags; 7818700e3e7SMoni Shoua 7828700e3e7SMoni Shoua if (unlikely((qp_state(qp) < IB_QPS_INIT) || !qp->valid)) { 7838700e3e7SMoni Shoua *bad_wr = wr; 7848700e3e7SMoni Shoua err = -EINVAL; 7858700e3e7SMoni Shoua goto err1; 7868700e3e7SMoni Shoua } 7878700e3e7SMoni Shoua 7888700e3e7SMoni Shoua if (unlikely(qp->srq)) { 7898700e3e7SMoni Shoua *bad_wr = wr; 7908700e3e7SMoni Shoua err = -EINVAL; 7918700e3e7SMoni Shoua goto err1; 7928700e3e7SMoni Shoua } 7938700e3e7SMoni Shoua 7948700e3e7SMoni Shoua spin_lock_irqsave(&rq->producer_lock, flags); 7958700e3e7SMoni Shoua 7968700e3e7SMoni Shoua while (wr) { 7978700e3e7SMoni Shoua err = post_one_recv(rq, wr); 7988700e3e7SMoni Shoua if (unlikely(err)) { 7998700e3e7SMoni Shoua *bad_wr = wr; 8008700e3e7SMoni Shoua break; 8018700e3e7SMoni Shoua } 8028700e3e7SMoni Shoua wr = wr->next; 8038700e3e7SMoni Shoua } 8048700e3e7SMoni Shoua 8058700e3e7SMoni Shoua spin_unlock_irqrestore(&rq->producer_lock, flags); 8068700e3e7SMoni Shoua 80712171971SVijay Immanuel if (qp->resp.state == QP_STATE_ERROR) 80812171971SVijay Immanuel rxe_run_task(&qp->resp.task, 1); 80912171971SVijay Immanuel 8108700e3e7SMoni Shoua err1: 8118700e3e7SMoni Shoua return err; 8128700e3e7SMoni Shoua } 8138700e3e7SMoni Shoua 8148700e3e7SMoni Shoua static struct ib_cq *rxe_create_cq(struct ib_device *dev, 8158700e3e7SMoni Shoua const struct ib_cq_init_attr *attr, 8168700e3e7SMoni Shoua struct ib_ucontext *context, 8178700e3e7SMoni Shoua struct ib_udata *udata) 8188700e3e7SMoni Shoua { 8198700e3e7SMoni Shoua int err; 8208700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 8218700e3e7SMoni Shoua struct rxe_cq *cq; 8220c43ab37SJason Gunthorpe struct rxe_create_cq_resp __user *uresp = NULL; 8230c43ab37SJason Gunthorpe 8240c43ab37SJason Gunthorpe if (udata) { 8250c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 8260c43ab37SJason Gunthorpe return ERR_PTR(-EINVAL); 8270c43ab37SJason Gunthorpe uresp = udata->outbuf; 8280c43ab37SJason Gunthorpe } 8298700e3e7SMoni Shoua 8308700e3e7SMoni Shoua if (attr->flags) 8318700e3e7SMoni Shoua return ERR_PTR(-EINVAL); 8328700e3e7SMoni Shoua 833b92ec0feSJason Gunthorpe err = rxe_cq_chk_attr(rxe, NULL, attr->cqe, attr->comp_vector); 8348700e3e7SMoni Shoua if (err) 8358700e3e7SMoni Shoua goto err1; 8368700e3e7SMoni Shoua 8378700e3e7SMoni Shoua cq = rxe_alloc(&rxe->cq_pool); 8388700e3e7SMoni Shoua if (!cq) { 8398700e3e7SMoni Shoua err = -ENOMEM; 8408700e3e7SMoni Shoua goto err1; 8418700e3e7SMoni Shoua } 8428700e3e7SMoni Shoua 8438700e3e7SMoni Shoua err = rxe_cq_from_init(rxe, cq, attr->cqe, attr->comp_vector, 8440c43ab37SJason Gunthorpe context, uresp); 8458700e3e7SMoni Shoua if (err) 8468700e3e7SMoni Shoua goto err2; 8478700e3e7SMoni Shoua 8488700e3e7SMoni Shoua return &cq->ibcq; 8498700e3e7SMoni Shoua 8508700e3e7SMoni Shoua err2: 8518700e3e7SMoni Shoua rxe_drop_ref(cq); 8528700e3e7SMoni Shoua err1: 8538700e3e7SMoni Shoua return ERR_PTR(err); 8548700e3e7SMoni Shoua } 8558700e3e7SMoni Shoua 8568700e3e7SMoni Shoua static int rxe_destroy_cq(struct ib_cq *ibcq) 8578700e3e7SMoni Shoua { 8588700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8598700e3e7SMoni Shoua 860bfc3ae05SAndrew Boyer rxe_cq_disable(cq); 861bfc3ae05SAndrew Boyer 8628700e3e7SMoni Shoua rxe_drop_ref(cq); 8638700e3e7SMoni Shoua return 0; 8648700e3e7SMoni Shoua } 8658700e3e7SMoni Shoua 8668700e3e7SMoni Shoua static int rxe_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) 8678700e3e7SMoni Shoua { 8688700e3e7SMoni Shoua int err; 8698700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8708700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibcq->device); 8710c43ab37SJason Gunthorpe struct rxe_resize_cq_resp __user *uresp = NULL; 8720c43ab37SJason Gunthorpe 8730c43ab37SJason Gunthorpe if (udata) { 8740c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 8750c43ab37SJason Gunthorpe return -EINVAL; 8760c43ab37SJason Gunthorpe uresp = udata->outbuf; 8770c43ab37SJason Gunthorpe } 8788700e3e7SMoni Shoua 879b92ec0feSJason Gunthorpe err = rxe_cq_chk_attr(rxe, cq, cqe, 0); 8808700e3e7SMoni Shoua if (err) 8818700e3e7SMoni Shoua goto err1; 8828700e3e7SMoni Shoua 8830c43ab37SJason Gunthorpe err = rxe_cq_resize_queue(cq, cqe, uresp); 8848700e3e7SMoni Shoua if (err) 8858700e3e7SMoni Shoua goto err1; 8868700e3e7SMoni Shoua 8878700e3e7SMoni Shoua return 0; 8888700e3e7SMoni Shoua 8898700e3e7SMoni Shoua err1: 8908700e3e7SMoni Shoua return err; 8918700e3e7SMoni Shoua } 8928700e3e7SMoni Shoua 8938700e3e7SMoni Shoua static int rxe_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) 8948700e3e7SMoni Shoua { 8958700e3e7SMoni Shoua int i; 8968700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8978700e3e7SMoni Shoua struct rxe_cqe *cqe; 8988700e3e7SMoni Shoua unsigned long flags; 8998700e3e7SMoni Shoua 9008700e3e7SMoni Shoua spin_lock_irqsave(&cq->cq_lock, flags); 9018700e3e7SMoni Shoua for (i = 0; i < num_entries; i++) { 9028700e3e7SMoni Shoua cqe = queue_head(cq->queue); 9038700e3e7SMoni Shoua if (!cqe) 9048700e3e7SMoni Shoua break; 9058700e3e7SMoni Shoua 9068700e3e7SMoni Shoua memcpy(wc++, &cqe->ibwc, sizeof(*wc)); 9078700e3e7SMoni Shoua advance_consumer(cq->queue); 9088700e3e7SMoni Shoua } 9098700e3e7SMoni Shoua spin_unlock_irqrestore(&cq->cq_lock, flags); 9108700e3e7SMoni Shoua 9118700e3e7SMoni Shoua return i; 9128700e3e7SMoni Shoua } 9138700e3e7SMoni Shoua 9148700e3e7SMoni Shoua static int rxe_peek_cq(struct ib_cq *ibcq, int wc_cnt) 9158700e3e7SMoni Shoua { 9168700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 9178700e3e7SMoni Shoua int count = queue_count(cq->queue); 9188700e3e7SMoni Shoua 9198700e3e7SMoni Shoua return (count > wc_cnt) ? wc_cnt : count; 9208700e3e7SMoni Shoua } 9218700e3e7SMoni Shoua 9228700e3e7SMoni Shoua static int rxe_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) 9238700e3e7SMoni Shoua { 9248700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 925accacb8fSAndrew Boyer unsigned long irq_flags; 926accacb8fSAndrew Boyer int ret = 0; 9278700e3e7SMoni Shoua 928accacb8fSAndrew Boyer spin_lock_irqsave(&cq->cq_lock, irq_flags); 9298700e3e7SMoni Shoua if (cq->notify != IB_CQ_NEXT_COMP) 9308700e3e7SMoni Shoua cq->notify = flags & IB_CQ_SOLICITED_MASK; 9318700e3e7SMoni Shoua 932accacb8fSAndrew Boyer if ((flags & IB_CQ_REPORT_MISSED_EVENTS) && !queue_empty(cq->queue)) 933accacb8fSAndrew Boyer ret = 1; 934accacb8fSAndrew Boyer 935accacb8fSAndrew Boyer spin_unlock_irqrestore(&cq->cq_lock, irq_flags); 936accacb8fSAndrew Boyer 937accacb8fSAndrew Boyer return ret; 9388700e3e7SMoni Shoua } 9398700e3e7SMoni Shoua 9408700e3e7SMoni Shoua static struct ib_mr *rxe_get_dma_mr(struct ib_pd *ibpd, int access) 9418700e3e7SMoni Shoua { 9428700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 9438700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 9448700e3e7SMoni Shoua struct rxe_mem *mr; 9458700e3e7SMoni Shoua int err; 9468700e3e7SMoni Shoua 9478700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 9488700e3e7SMoni Shoua if (!mr) { 9498700e3e7SMoni Shoua err = -ENOMEM; 9508700e3e7SMoni Shoua goto err1; 9518700e3e7SMoni Shoua } 9528700e3e7SMoni Shoua 9538700e3e7SMoni Shoua rxe_add_index(mr); 9548700e3e7SMoni Shoua 9558700e3e7SMoni Shoua rxe_add_ref(pd); 9568700e3e7SMoni Shoua 957e12ee8ceSZhu Yanjun err = rxe_mem_init_dma(pd, access, mr); 9588700e3e7SMoni Shoua if (err) 9598700e3e7SMoni Shoua goto err2; 9608700e3e7SMoni Shoua 9618700e3e7SMoni Shoua return &mr->ibmr; 9628700e3e7SMoni Shoua 9638700e3e7SMoni Shoua err2: 9648700e3e7SMoni Shoua rxe_drop_ref(pd); 9658700e3e7SMoni Shoua rxe_drop_index(mr); 9668700e3e7SMoni Shoua rxe_drop_ref(mr); 9678700e3e7SMoni Shoua err1: 9688700e3e7SMoni Shoua return ERR_PTR(err); 9698700e3e7SMoni Shoua } 9708700e3e7SMoni Shoua 9718700e3e7SMoni Shoua static struct ib_mr *rxe_reg_user_mr(struct ib_pd *ibpd, 9728700e3e7SMoni Shoua u64 start, 9738700e3e7SMoni Shoua u64 length, 9748700e3e7SMoni Shoua u64 iova, 9758700e3e7SMoni Shoua int access, struct ib_udata *udata) 9768700e3e7SMoni Shoua { 9778700e3e7SMoni Shoua int err; 9788700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 9798700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 9808700e3e7SMoni Shoua struct rxe_mem *mr; 9818700e3e7SMoni Shoua 9828700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 9838700e3e7SMoni Shoua if (!mr) { 9848700e3e7SMoni Shoua err = -ENOMEM; 9858700e3e7SMoni Shoua goto err2; 9868700e3e7SMoni Shoua } 9878700e3e7SMoni Shoua 9888700e3e7SMoni Shoua rxe_add_index(mr); 9898700e3e7SMoni Shoua 9908700e3e7SMoni Shoua rxe_add_ref(pd); 9918700e3e7SMoni Shoua 992e12ee8ceSZhu Yanjun err = rxe_mem_init_user(pd, start, length, iova, 9938700e3e7SMoni Shoua access, udata, mr); 9948700e3e7SMoni Shoua if (err) 9958700e3e7SMoni Shoua goto err3; 9968700e3e7SMoni Shoua 9978700e3e7SMoni Shoua return &mr->ibmr; 9988700e3e7SMoni Shoua 9998700e3e7SMoni Shoua err3: 10008700e3e7SMoni Shoua rxe_drop_ref(pd); 10018700e3e7SMoni Shoua rxe_drop_index(mr); 10028700e3e7SMoni Shoua rxe_drop_ref(mr); 10038700e3e7SMoni Shoua err2: 10048700e3e7SMoni Shoua return ERR_PTR(err); 10058700e3e7SMoni Shoua } 10068700e3e7SMoni Shoua 10078700e3e7SMoni Shoua static int rxe_dereg_mr(struct ib_mr *ibmr) 10088700e3e7SMoni Shoua { 10098700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 10108700e3e7SMoni Shoua 10118700e3e7SMoni Shoua mr->state = RXE_MEM_STATE_ZOMBIE; 10128700e3e7SMoni Shoua rxe_drop_ref(mr->pd); 10138700e3e7SMoni Shoua rxe_drop_index(mr); 10148700e3e7SMoni Shoua rxe_drop_ref(mr); 10158700e3e7SMoni Shoua return 0; 10168700e3e7SMoni Shoua } 10178700e3e7SMoni Shoua 10188700e3e7SMoni Shoua static struct ib_mr *rxe_alloc_mr(struct ib_pd *ibpd, 10198700e3e7SMoni Shoua enum ib_mr_type mr_type, 10208700e3e7SMoni Shoua u32 max_num_sg) 10218700e3e7SMoni Shoua { 10228700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 10238700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 10248700e3e7SMoni Shoua struct rxe_mem *mr; 10258700e3e7SMoni Shoua int err; 10268700e3e7SMoni Shoua 10278700e3e7SMoni Shoua if (mr_type != IB_MR_TYPE_MEM_REG) 10288700e3e7SMoni Shoua return ERR_PTR(-EINVAL); 10298700e3e7SMoni Shoua 10308700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 10318700e3e7SMoni Shoua if (!mr) { 10328700e3e7SMoni Shoua err = -ENOMEM; 10338700e3e7SMoni Shoua goto err1; 10348700e3e7SMoni Shoua } 10358700e3e7SMoni Shoua 10368700e3e7SMoni Shoua rxe_add_index(mr); 10378700e3e7SMoni Shoua 10388700e3e7SMoni Shoua rxe_add_ref(pd); 10398700e3e7SMoni Shoua 1040e12ee8ceSZhu Yanjun err = rxe_mem_init_fast(pd, max_num_sg, mr); 10418700e3e7SMoni Shoua if (err) 10428700e3e7SMoni Shoua goto err2; 10438700e3e7SMoni Shoua 10448700e3e7SMoni Shoua return &mr->ibmr; 10458700e3e7SMoni Shoua 10468700e3e7SMoni Shoua err2: 10478700e3e7SMoni Shoua rxe_drop_ref(pd); 10488700e3e7SMoni Shoua rxe_drop_index(mr); 10498700e3e7SMoni Shoua rxe_drop_ref(mr); 10508700e3e7SMoni Shoua err1: 10518700e3e7SMoni Shoua return ERR_PTR(err); 10528700e3e7SMoni Shoua } 10538700e3e7SMoni Shoua 10548700e3e7SMoni Shoua static int rxe_set_page(struct ib_mr *ibmr, u64 addr) 10558700e3e7SMoni Shoua { 10568700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 10578700e3e7SMoni Shoua struct rxe_map *map; 10588700e3e7SMoni Shoua struct rxe_phys_buf *buf; 10598700e3e7SMoni Shoua 10608700e3e7SMoni Shoua if (unlikely(mr->nbuf == mr->num_buf)) 10618700e3e7SMoni Shoua return -ENOMEM; 10628700e3e7SMoni Shoua 10638700e3e7SMoni Shoua map = mr->map[mr->nbuf / RXE_BUF_PER_MAP]; 10648700e3e7SMoni Shoua buf = &map->buf[mr->nbuf % RXE_BUF_PER_MAP]; 10658700e3e7SMoni Shoua 10668700e3e7SMoni Shoua buf->addr = addr; 10678700e3e7SMoni Shoua buf->size = ibmr->page_size; 10688700e3e7SMoni Shoua mr->nbuf++; 10698700e3e7SMoni Shoua 10708700e3e7SMoni Shoua return 0; 10718700e3e7SMoni Shoua } 10728700e3e7SMoni Shoua 1073e404f945SParav Pandit static int rxe_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, 1074e404f945SParav Pandit int sg_nents, unsigned int *sg_offset) 10758700e3e7SMoni Shoua { 10768700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 10778700e3e7SMoni Shoua int n; 10788700e3e7SMoni Shoua 10798700e3e7SMoni Shoua mr->nbuf = 0; 10808700e3e7SMoni Shoua 10818700e3e7SMoni Shoua n = ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, rxe_set_page); 10828700e3e7SMoni Shoua 10838700e3e7SMoni Shoua mr->va = ibmr->iova; 10848700e3e7SMoni Shoua mr->iova = ibmr->iova; 10858700e3e7SMoni Shoua mr->length = ibmr->length; 10868700e3e7SMoni Shoua mr->page_shift = ilog2(ibmr->page_size); 10878700e3e7SMoni Shoua mr->page_mask = ibmr->page_size - 1; 10888700e3e7SMoni Shoua mr->offset = mr->iova & mr->page_mask; 10898700e3e7SMoni Shoua 10908700e3e7SMoni Shoua return n; 10918700e3e7SMoni Shoua } 10928700e3e7SMoni Shoua 10938700e3e7SMoni Shoua static int rxe_attach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid) 10948700e3e7SMoni Shoua { 10958700e3e7SMoni Shoua int err; 10968700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 10978700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 10988700e3e7SMoni Shoua struct rxe_mc_grp *grp; 10998700e3e7SMoni Shoua 11008700e3e7SMoni Shoua /* takes a ref on grp if successful */ 11018700e3e7SMoni Shoua err = rxe_mcast_get_grp(rxe, mgid, &grp); 11028700e3e7SMoni Shoua if (err) 11038700e3e7SMoni Shoua return err; 11048700e3e7SMoni Shoua 11058700e3e7SMoni Shoua err = rxe_mcast_add_grp_elem(rxe, qp, grp); 11068700e3e7SMoni Shoua 11078700e3e7SMoni Shoua rxe_drop_ref(grp); 11088700e3e7SMoni Shoua return err; 11098700e3e7SMoni Shoua } 11108700e3e7SMoni Shoua 11118700e3e7SMoni Shoua static int rxe_detach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid) 11128700e3e7SMoni Shoua { 11138700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 11148700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 11158700e3e7SMoni Shoua 11168700e3e7SMoni Shoua return rxe_mcast_drop_grp_elem(rxe, qp, mgid); 11178700e3e7SMoni Shoua } 11188700e3e7SMoni Shoua 1119c05d2664SKamal Heib static ssize_t parent_show(struct device *device, 11208700e3e7SMoni Shoua struct device_attribute *attr, char *buf) 11218700e3e7SMoni Shoua { 112254747231SParav Pandit struct rxe_dev *rxe = 112354747231SParav Pandit rdma_device_to_drv_device(device, struct rxe_dev, ib_dev); 11248700e3e7SMoni Shoua 1125839f5ac0SBart Van Assche return snprintf(buf, 16, "%s\n", rxe_parent_name(rxe, 1)); 11268700e3e7SMoni Shoua } 11278700e3e7SMoni Shoua 1128c05d2664SKamal Heib static DEVICE_ATTR_RO(parent); 11298700e3e7SMoni Shoua 1130508a523fSParav Pandit static struct attribute *rxe_dev_attributes[] = { 1131508a523fSParav Pandit &dev_attr_parent.attr, 1132508a523fSParav Pandit NULL 1133508a523fSParav Pandit }; 1134508a523fSParav Pandit 1135508a523fSParav Pandit static const struct attribute_group rxe_attr_group = { 1136508a523fSParav Pandit .attrs = rxe_dev_attributes, 11378700e3e7SMoni Shoua }; 11388700e3e7SMoni Shoua 1139573efc4bSKamal Heib static const struct ib_device_ops rxe_dev_ops = { 1140573efc4bSKamal Heib .alloc_hw_stats = rxe_ib_alloc_hw_stats, 1141573efc4bSKamal Heib .alloc_mr = rxe_alloc_mr, 1142573efc4bSKamal Heib .alloc_pd = rxe_alloc_pd, 1143573efc4bSKamal Heib .alloc_ucontext = rxe_alloc_ucontext, 1144573efc4bSKamal Heib .attach_mcast = rxe_attach_mcast, 1145573efc4bSKamal Heib .create_ah = rxe_create_ah, 1146573efc4bSKamal Heib .create_cq = rxe_create_cq, 1147573efc4bSKamal Heib .create_qp = rxe_create_qp, 1148573efc4bSKamal Heib .create_srq = rxe_create_srq, 1149573efc4bSKamal Heib .dealloc_pd = rxe_dealloc_pd, 1150573efc4bSKamal Heib .dealloc_ucontext = rxe_dealloc_ucontext, 1151573efc4bSKamal Heib .dereg_mr = rxe_dereg_mr, 1152573efc4bSKamal Heib .destroy_ah = rxe_destroy_ah, 1153573efc4bSKamal Heib .destroy_cq = rxe_destroy_cq, 1154573efc4bSKamal Heib .destroy_qp = rxe_destroy_qp, 1155573efc4bSKamal Heib .destroy_srq = rxe_destroy_srq, 1156573efc4bSKamal Heib .detach_mcast = rxe_detach_mcast, 1157573efc4bSKamal Heib .get_dma_mr = rxe_get_dma_mr, 1158573efc4bSKamal Heib .get_hw_stats = rxe_ib_get_hw_stats, 1159573efc4bSKamal Heib .get_link_layer = rxe_get_link_layer, 1160573efc4bSKamal Heib .get_netdev = rxe_get_netdev, 1161573efc4bSKamal Heib .get_port_immutable = rxe_port_immutable, 1162573efc4bSKamal Heib .map_mr_sg = rxe_map_mr_sg, 1163573efc4bSKamal Heib .mmap = rxe_mmap, 1164573efc4bSKamal Heib .modify_ah = rxe_modify_ah, 1165573efc4bSKamal Heib .modify_device = rxe_modify_device, 1166573efc4bSKamal Heib .modify_port = rxe_modify_port, 1167573efc4bSKamal Heib .modify_qp = rxe_modify_qp, 1168573efc4bSKamal Heib .modify_srq = rxe_modify_srq, 1169573efc4bSKamal Heib .peek_cq = rxe_peek_cq, 1170573efc4bSKamal Heib .poll_cq = rxe_poll_cq, 1171573efc4bSKamal Heib .post_recv = rxe_post_recv, 1172573efc4bSKamal Heib .post_send = rxe_post_send, 1173573efc4bSKamal Heib .post_srq_recv = rxe_post_srq_recv, 1174573efc4bSKamal Heib .query_ah = rxe_query_ah, 1175573efc4bSKamal Heib .query_device = rxe_query_device, 1176573efc4bSKamal Heib .query_pkey = rxe_query_pkey, 1177573efc4bSKamal Heib .query_port = rxe_query_port, 1178573efc4bSKamal Heib .query_qp = rxe_query_qp, 1179573efc4bSKamal Heib .query_srq = rxe_query_srq, 1180573efc4bSKamal Heib .reg_user_mr = rxe_reg_user_mr, 1181573efc4bSKamal Heib .req_notify_cq = rxe_req_notify_cq, 1182573efc4bSKamal Heib .resize_cq = rxe_resize_cq, 118321a428a0SLeon Romanovsky INIT_RDMA_OBJ_SIZE(ib_pd, rxe_pd, ibpd), 1184573efc4bSKamal Heib }; 1185573efc4bSKamal Heib 11868700e3e7SMoni Shoua int rxe_register_device(struct rxe_dev *rxe) 11878700e3e7SMoni Shoua { 11888700e3e7SMoni Shoua int err; 11898700e3e7SMoni Shoua struct ib_device *dev = &rxe->ib_dev; 11903192c53eSThomas Bogendoerfer struct crypto_shash *tfm; 11918700e3e7SMoni Shoua 11928700e3e7SMoni Shoua strlcpy(dev->node_desc, "rxe", sizeof(dev->node_desc)); 11938700e3e7SMoni Shoua 11948700e3e7SMoni Shoua dev->owner = THIS_MODULE; 11958700e3e7SMoni Shoua dev->node_type = RDMA_NODE_IB_CA; 11968700e3e7SMoni Shoua dev->phys_port_cnt = 1; 119767cf3623SSagi Grimberg dev->num_comp_vectors = num_possible_cpus(); 119885e9f1dbSBart Van Assche dev->dev.parent = rxe_dma_device(rxe); 11998700e3e7SMoni Shoua dev->local_dma_lkey = 0; 12004d6f2859SYuval Shaia addrconf_addr_eui48((unsigned char *)&dev->node_guid, 12014d6f2859SYuval Shaia rxe->ndev->dev_addr); 12020bbb3b74SBart Van Assche dev->dev.dma_ops = &dma_virt_ops; 120356012e1cSyonatanc dma_coerce_mask_and_coherent(&dev->dev, 1204efc365e7SMikhail Malygin dma_get_required_mask(&dev->dev)); 12058700e3e7SMoni Shoua 12068700e3e7SMoni Shoua dev->uverbs_abi_ver = RXE_UVERBS_ABI_VERSION; 12078700e3e7SMoni Shoua dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT) 12088700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) 12098700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_DEVICE) 12108700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_PORT) 12118700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_ALLOC_PD) 12128700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DEALLOC_PD) 12138700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_SRQ) 12148700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_SRQ) 12158700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_SRQ) 12168700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_SRQ) 12178700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_SRQ_RECV) 12188700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_QP) 12198700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_QP) 12208700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_QP) 12218700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_QP) 12228700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_SEND) 12238700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_RECV) 12248700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_CQ) 12258700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_RESIZE_CQ) 12268700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_CQ) 12278700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POLL_CQ) 12288700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_PEEK_CQ) 12298700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) 12308700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_REG_MR) 12318700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DEREG_MR) 12328700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_AH) 12338700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_AH) 12348700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_AH) 12358700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_AH) 12368700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_ATTACH_MCAST) 12378700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DETACH_MCAST) 12388700e3e7SMoni Shoua ; 12398700e3e7SMoni Shoua 1240573efc4bSKamal Heib ib_set_device_ops(dev, &rxe_dev_ops); 12418700e3e7SMoni Shoua 12423192c53eSThomas Bogendoerfer tfm = crypto_alloc_shash("crc32", 0, 0); 12433192c53eSThomas Bogendoerfer if (IS_ERR(tfm)) { 124427b0b832SColin Ian King pr_err("failed to allocate crc algorithm err:%ld\n", 12453192c53eSThomas Bogendoerfer PTR_ERR(tfm)); 12463192c53eSThomas Bogendoerfer return PTR_ERR(tfm); 1247cee2688eSyonatanc } 12483192c53eSThomas Bogendoerfer rxe->tfm = tfm; 1249cee2688eSyonatanc 1250508a523fSParav Pandit rdma_set_device_sysfs_group(dev, &rxe_attr_group); 12510ede73bcSMatan Barak dev->driver_id = RDMA_DRIVER_RXE; 1252ea4baf7fSParav Pandit err = ib_register_device(dev, "rxe%d"); 12538700e3e7SMoni Shoua if (err) { 125461013828SKamal Heib pr_warn("%s failed with error %d\n", __func__, err); 12558700e3e7SMoni Shoua goto err1; 12568700e3e7SMoni Shoua } 12578700e3e7SMoni Shoua 12588700e3e7SMoni Shoua return 0; 12598700e3e7SMoni Shoua 12608700e3e7SMoni Shoua err1: 1261cee2688eSyonatanc crypto_free_shash(rxe->tfm); 1262cee2688eSyonatanc 12638700e3e7SMoni Shoua return err; 12648700e3e7SMoni Shoua } 12658700e3e7SMoni Shoua 12668c995968SZhu Yanjun void rxe_unregister_device(struct rxe_dev *rxe) 12678700e3e7SMoni Shoua { 12688700e3e7SMoni Shoua struct ib_device *dev = &rxe->ib_dev; 12698700e3e7SMoni Shoua 12708700e3e7SMoni Shoua ib_unregister_device(dev); 12718700e3e7SMoni Shoua } 1272