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; 59d4186194SYuval Shaia int rc = -EINVAL; 608700e3e7SMoni Shoua 618700e3e7SMoni Shoua if (unlikely(port_num != 1)) { 628700e3e7SMoni Shoua pr_warn("invalid port_number %d\n", port_num); 63d4186194SYuval Shaia goto out; 648700e3e7SMoni Shoua } 658700e3e7SMoni Shoua 668700e3e7SMoni Shoua port = &rxe->port; 678700e3e7SMoni Shoua 68c4550c63SOr Gerlitz /* *attr being zeroed by the caller, avoid zeroing it here */ 698700e3e7SMoni Shoua *attr = port->attr; 708700e3e7SMoni Shoua 718700e3e7SMoni Shoua mutex_lock(&rxe->usdev_lock); 72d4186194SYuval Shaia rc = ib_get_eth_speed(dev, port_num, &attr->active_speed, 73e404f945SParav Pandit &attr->active_width); 748700e3e7SMoni Shoua mutex_unlock(&rxe->usdev_lock); 758700e3e7SMoni Shoua 76d4186194SYuval Shaia out: 77d4186194SYuval Shaia return rc; 788700e3e7SMoni Shoua } 798700e3e7SMoni Shoua 808700e3e7SMoni Shoua static struct net_device *rxe_get_netdev(struct ib_device *device, 818700e3e7SMoni Shoua u8 port_num) 828700e3e7SMoni Shoua { 838700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(device); 848700e3e7SMoni Shoua 858700e3e7SMoni Shoua if (rxe->ndev) { 868700e3e7SMoni Shoua dev_hold(rxe->ndev); 878700e3e7SMoni Shoua return rxe->ndev; 888700e3e7SMoni Shoua } 898700e3e7SMoni Shoua 908700e3e7SMoni Shoua return NULL; 918700e3e7SMoni Shoua } 928700e3e7SMoni Shoua 938700e3e7SMoni Shoua static int rxe_query_pkey(struct ib_device *device, 948700e3e7SMoni Shoua u8 port_num, u16 index, u16 *pkey) 958700e3e7SMoni Shoua { 968700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(device); 978700e3e7SMoni Shoua struct rxe_port *port; 988700e3e7SMoni Shoua 998700e3e7SMoni Shoua if (unlikely(port_num != 1)) { 10085e9f1dbSBart Van Assche dev_warn(device->dev.parent, "invalid port_num = %d\n", 1018700e3e7SMoni Shoua port_num); 1028700e3e7SMoni Shoua goto err1; 1038700e3e7SMoni Shoua } 1048700e3e7SMoni Shoua 1058700e3e7SMoni Shoua port = &rxe->port; 1068700e3e7SMoni Shoua 1078700e3e7SMoni Shoua if (unlikely(index >= port->attr.pkey_tbl_len)) { 10885e9f1dbSBart Van Assche dev_warn(device->dev.parent, "invalid index = %d\n", 1098700e3e7SMoni Shoua index); 1108700e3e7SMoni Shoua goto err1; 1118700e3e7SMoni Shoua } 1128700e3e7SMoni Shoua 1138700e3e7SMoni Shoua *pkey = port->pkey_tbl[index]; 1148700e3e7SMoni Shoua return 0; 1158700e3e7SMoni Shoua 1168700e3e7SMoni Shoua err1: 1178700e3e7SMoni Shoua return -EINVAL; 1188700e3e7SMoni Shoua } 1198700e3e7SMoni Shoua 1208700e3e7SMoni Shoua static int rxe_modify_device(struct ib_device *dev, 1218700e3e7SMoni Shoua int mask, struct ib_device_modify *attr) 1228700e3e7SMoni Shoua { 1238700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1248700e3e7SMoni Shoua 1258700e3e7SMoni Shoua if (mask & IB_DEVICE_MODIFY_SYS_IMAGE_GUID) 1268700e3e7SMoni Shoua rxe->attr.sys_image_guid = cpu_to_be64(attr->sys_image_guid); 1278700e3e7SMoni Shoua 1288700e3e7SMoni Shoua if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 1298700e3e7SMoni Shoua memcpy(rxe->ib_dev.node_desc, 1308700e3e7SMoni Shoua attr->node_desc, sizeof(rxe->ib_dev.node_desc)); 1318700e3e7SMoni Shoua } 1328700e3e7SMoni Shoua 1338700e3e7SMoni Shoua return 0; 1348700e3e7SMoni Shoua } 1358700e3e7SMoni Shoua 1368700e3e7SMoni Shoua static int rxe_modify_port(struct ib_device *dev, 1378700e3e7SMoni Shoua u8 port_num, int mask, struct ib_port_modify *attr) 1388700e3e7SMoni Shoua { 1398700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1408700e3e7SMoni Shoua struct rxe_port *port; 1418700e3e7SMoni Shoua 1428700e3e7SMoni Shoua if (unlikely(port_num != 1)) { 1438700e3e7SMoni Shoua pr_warn("invalid port_num = %d\n", port_num); 1448700e3e7SMoni Shoua goto err1; 1458700e3e7SMoni Shoua } 1468700e3e7SMoni Shoua 1478700e3e7SMoni Shoua port = &rxe->port; 1488700e3e7SMoni Shoua 1498700e3e7SMoni Shoua port->attr.port_cap_flags |= attr->set_port_cap_mask; 1508700e3e7SMoni Shoua port->attr.port_cap_flags &= ~attr->clr_port_cap_mask; 1518700e3e7SMoni Shoua 1528700e3e7SMoni Shoua if (mask & IB_PORT_RESET_QKEY_CNTR) 1538700e3e7SMoni Shoua port->attr.qkey_viol_cntr = 0; 1548700e3e7SMoni Shoua 1558700e3e7SMoni Shoua return 0; 1568700e3e7SMoni Shoua 1578700e3e7SMoni Shoua err1: 1588700e3e7SMoni Shoua return -EINVAL; 1598700e3e7SMoni Shoua } 1608700e3e7SMoni Shoua 1618700e3e7SMoni Shoua static enum rdma_link_layer rxe_get_link_layer(struct ib_device *dev, 1628700e3e7SMoni Shoua u8 port_num) 1638700e3e7SMoni Shoua { 1648700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1658700e3e7SMoni Shoua 166839f5ac0SBart Van Assche return rxe_link_layer(rxe, port_num); 1678700e3e7SMoni Shoua } 1688700e3e7SMoni Shoua 1698700e3e7SMoni Shoua static struct ib_ucontext *rxe_alloc_ucontext(struct ib_device *dev, 1708700e3e7SMoni Shoua struct ib_udata *udata) 1718700e3e7SMoni Shoua { 1728700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 1738700e3e7SMoni Shoua struct rxe_ucontext *uc; 1748700e3e7SMoni Shoua 1758700e3e7SMoni Shoua uc = rxe_alloc(&rxe->uc_pool); 1768700e3e7SMoni Shoua return uc ? &uc->ibuc : ERR_PTR(-ENOMEM); 1778700e3e7SMoni Shoua } 1788700e3e7SMoni Shoua 1798700e3e7SMoni Shoua static int rxe_dealloc_ucontext(struct ib_ucontext *ibuc) 1808700e3e7SMoni Shoua { 1818700e3e7SMoni Shoua struct rxe_ucontext *uc = to_ruc(ibuc); 1828700e3e7SMoni Shoua 1838700e3e7SMoni Shoua rxe_drop_ref(uc); 1848700e3e7SMoni Shoua return 0; 1858700e3e7SMoni Shoua } 1868700e3e7SMoni Shoua 1878700e3e7SMoni Shoua static int rxe_port_immutable(struct ib_device *dev, u8 port_num, 1888700e3e7SMoni Shoua struct ib_port_immutable *immutable) 1898700e3e7SMoni Shoua { 1908700e3e7SMoni Shoua int err; 1918700e3e7SMoni Shoua struct ib_port_attr attr; 1928700e3e7SMoni Shoua 193c4550c63SOr Gerlitz immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; 194c4550c63SOr Gerlitz 195c4550c63SOr Gerlitz err = ib_query_port(dev, port_num, &attr); 1968700e3e7SMoni Shoua if (err) 1978700e3e7SMoni Shoua return err; 1988700e3e7SMoni Shoua 1998700e3e7SMoni Shoua immutable->pkey_tbl_len = attr.pkey_tbl_len; 2008700e3e7SMoni Shoua immutable->gid_tbl_len = attr.gid_tbl_len; 2018700e3e7SMoni Shoua immutable->max_mad_size = IB_MGMT_MAD_SIZE; 2028700e3e7SMoni Shoua 2038700e3e7SMoni Shoua return 0; 2048700e3e7SMoni Shoua } 2058700e3e7SMoni Shoua 2068700e3e7SMoni Shoua static struct ib_pd *rxe_alloc_pd(struct ib_device *dev, 2078700e3e7SMoni Shoua struct ib_ucontext *context, 2088700e3e7SMoni Shoua struct ib_udata *udata) 2098700e3e7SMoni Shoua { 2108700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 2118700e3e7SMoni Shoua struct rxe_pd *pd; 2128700e3e7SMoni Shoua 2138700e3e7SMoni Shoua pd = rxe_alloc(&rxe->pd_pool); 2148700e3e7SMoni Shoua return pd ? &pd->ibpd : ERR_PTR(-ENOMEM); 2158700e3e7SMoni Shoua } 2168700e3e7SMoni Shoua 2178700e3e7SMoni Shoua static int rxe_dealloc_pd(struct ib_pd *ibpd) 2188700e3e7SMoni Shoua { 2198700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 2208700e3e7SMoni Shoua 2218700e3e7SMoni Shoua rxe_drop_ref(pd); 2228700e3e7SMoni Shoua return 0; 2238700e3e7SMoni Shoua } 2248700e3e7SMoni Shoua 22547ec3866SParav Pandit static void rxe_init_av(struct rxe_dev *rxe, struct rdma_ah_attr *attr, 2268700e3e7SMoni Shoua struct rxe_av *av) 2278700e3e7SMoni Shoua { 228ca3d9feeSZhu Yanjun rxe_av_from_attr(rdma_ah_get_port_num(attr), av, attr); 22947ec3866SParav Pandit rxe_av_fill_ip_info(av, attr); 2308700e3e7SMoni Shoua } 2318700e3e7SMoni Shoua 23290898850SDasaratharaman Chandramouli static struct ib_ah *rxe_create_ah(struct ib_pd *ibpd, 23390898850SDasaratharaman Chandramouli struct rdma_ah_attr *attr, 234477864c8SMoni Shoua struct ib_udata *udata) 235477864c8SMoni Shoua 2368700e3e7SMoni Shoua { 2378700e3e7SMoni Shoua int err; 2388700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 2398700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 2408700e3e7SMoni Shoua struct rxe_ah *ah; 2418700e3e7SMoni Shoua 2428700e3e7SMoni Shoua err = rxe_av_chk_attr(rxe, attr); 2438700e3e7SMoni Shoua if (err) 2442f229bcfSBart Van Assche return ERR_PTR(err); 2458700e3e7SMoni Shoua 2468700e3e7SMoni Shoua ah = rxe_alloc(&rxe->ah_pool); 2472f229bcfSBart Van Assche if (!ah) 2482f229bcfSBart Van Assche return ERR_PTR(-ENOMEM); 2498700e3e7SMoni Shoua 2508700e3e7SMoni Shoua rxe_add_ref(pd); 2518700e3e7SMoni Shoua ah->pd = pd; 2528700e3e7SMoni Shoua 25347ec3866SParav Pandit rxe_init_av(rxe, attr, &ah->av); 2548700e3e7SMoni Shoua return &ah->ibah; 2558700e3e7SMoni Shoua } 2568700e3e7SMoni Shoua 25790898850SDasaratharaman Chandramouli static int rxe_modify_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr) 2588700e3e7SMoni Shoua { 2598700e3e7SMoni Shoua int err; 2608700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibah->device); 2618700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2628700e3e7SMoni Shoua 2638700e3e7SMoni Shoua err = rxe_av_chk_attr(rxe, attr); 2648700e3e7SMoni Shoua if (err) 2658700e3e7SMoni Shoua return err; 2668700e3e7SMoni Shoua 26747ec3866SParav Pandit rxe_init_av(rxe, attr, &ah->av); 2688700e3e7SMoni Shoua return 0; 2698700e3e7SMoni Shoua } 2708700e3e7SMoni Shoua 27190898850SDasaratharaman Chandramouli static int rxe_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *attr) 2728700e3e7SMoni Shoua { 2738700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2748700e3e7SMoni Shoua 275eca7ddf9SDasaratharaman Chandramouli memset(attr, 0, sizeof(*attr)); 27644c58487SDasaratharaman Chandramouli attr->type = ibah->type; 2779c96f3d4SZhu Yanjun rxe_av_to_attr(&ah->av, attr); 2788700e3e7SMoni Shoua return 0; 2798700e3e7SMoni Shoua } 2808700e3e7SMoni Shoua 2818700e3e7SMoni Shoua static int rxe_destroy_ah(struct ib_ah *ibah) 2828700e3e7SMoni Shoua { 2838700e3e7SMoni Shoua struct rxe_ah *ah = to_rah(ibah); 2848700e3e7SMoni Shoua 2858700e3e7SMoni Shoua rxe_drop_ref(ah->pd); 2868700e3e7SMoni Shoua rxe_drop_ref(ah); 2878700e3e7SMoni Shoua return 0; 2888700e3e7SMoni Shoua } 2898700e3e7SMoni Shoua 290d34ac5cdSBart Van Assche static int post_one_recv(struct rxe_rq *rq, const struct ib_recv_wr *ibwr) 2918700e3e7SMoni Shoua { 2928700e3e7SMoni Shoua int err; 2938700e3e7SMoni Shoua int i; 2948700e3e7SMoni Shoua u32 length; 2958700e3e7SMoni Shoua struct rxe_recv_wqe *recv_wqe; 2968700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 2978700e3e7SMoni Shoua 2988700e3e7SMoni Shoua if (unlikely(queue_full(rq->queue))) { 2998700e3e7SMoni Shoua err = -ENOMEM; 3008700e3e7SMoni Shoua goto err1; 3018700e3e7SMoni Shoua } 3028700e3e7SMoni Shoua 3038700e3e7SMoni Shoua if (unlikely(num_sge > rq->max_sge)) { 3048700e3e7SMoni Shoua err = -EINVAL; 3058700e3e7SMoni Shoua goto err1; 3068700e3e7SMoni Shoua } 3078700e3e7SMoni Shoua 3088700e3e7SMoni Shoua length = 0; 3098700e3e7SMoni Shoua for (i = 0; i < num_sge; i++) 3108700e3e7SMoni Shoua length += ibwr->sg_list[i].length; 3118700e3e7SMoni Shoua 3128700e3e7SMoni Shoua recv_wqe = producer_addr(rq->queue); 3138700e3e7SMoni Shoua recv_wqe->wr_id = ibwr->wr_id; 3148700e3e7SMoni Shoua recv_wqe->num_sge = num_sge; 3158700e3e7SMoni Shoua 3168700e3e7SMoni Shoua memcpy(recv_wqe->dma.sge, ibwr->sg_list, 3178700e3e7SMoni Shoua num_sge * sizeof(struct ib_sge)); 3188700e3e7SMoni Shoua 3198700e3e7SMoni Shoua recv_wqe->dma.length = length; 3208700e3e7SMoni Shoua recv_wqe->dma.resid = length; 3218700e3e7SMoni Shoua recv_wqe->dma.num_sge = num_sge; 3228700e3e7SMoni Shoua recv_wqe->dma.cur_sge = 0; 3238700e3e7SMoni Shoua recv_wqe->dma.sge_offset = 0; 3248700e3e7SMoni Shoua 3258700e3e7SMoni Shoua /* make sure all changes to the work queue are written before we 3268700e3e7SMoni Shoua * update the producer pointer 3278700e3e7SMoni Shoua */ 3288700e3e7SMoni Shoua smp_wmb(); 3298700e3e7SMoni Shoua 3308700e3e7SMoni Shoua advance_producer(rq->queue); 3318700e3e7SMoni Shoua return 0; 3328700e3e7SMoni Shoua 3338700e3e7SMoni Shoua err1: 3348700e3e7SMoni Shoua return err; 3358700e3e7SMoni Shoua } 3368700e3e7SMoni Shoua 3378700e3e7SMoni Shoua static struct ib_srq *rxe_create_srq(struct ib_pd *ibpd, 3388700e3e7SMoni Shoua struct ib_srq_init_attr *init, 3398700e3e7SMoni Shoua struct ib_udata *udata) 3408700e3e7SMoni Shoua { 3418700e3e7SMoni Shoua int err; 3428700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 3438700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 3448700e3e7SMoni Shoua struct rxe_srq *srq; 3458700e3e7SMoni Shoua struct ib_ucontext *context = udata ? ibpd->uobject->context : NULL; 3460c43ab37SJason Gunthorpe struct rxe_create_srq_resp __user *uresp = NULL; 3470c43ab37SJason Gunthorpe 3480c43ab37SJason Gunthorpe if (udata) { 3490c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 3500c43ab37SJason Gunthorpe return ERR_PTR(-EINVAL); 3510c43ab37SJason Gunthorpe uresp = udata->outbuf; 3520c43ab37SJason Gunthorpe } 3538700e3e7SMoni Shoua 3548700e3e7SMoni Shoua err = rxe_srq_chk_attr(rxe, NULL, &init->attr, IB_SRQ_INIT_MASK); 3558700e3e7SMoni Shoua if (err) 3568700e3e7SMoni Shoua goto err1; 3578700e3e7SMoni Shoua 3588700e3e7SMoni Shoua srq = rxe_alloc(&rxe->srq_pool); 3598700e3e7SMoni Shoua if (!srq) { 3608700e3e7SMoni Shoua err = -ENOMEM; 3618700e3e7SMoni Shoua goto err1; 3628700e3e7SMoni Shoua } 3638700e3e7SMoni Shoua 3648700e3e7SMoni Shoua rxe_add_index(srq); 3658700e3e7SMoni Shoua rxe_add_ref(pd); 3668700e3e7SMoni Shoua srq->pd = pd; 3678700e3e7SMoni Shoua 3680c43ab37SJason Gunthorpe err = rxe_srq_from_init(rxe, srq, init, context, uresp); 3698700e3e7SMoni Shoua if (err) 3708700e3e7SMoni Shoua goto err2; 3718700e3e7SMoni Shoua 3728700e3e7SMoni Shoua return &srq->ibsrq; 3738700e3e7SMoni Shoua 3748700e3e7SMoni Shoua err2: 3758700e3e7SMoni Shoua rxe_drop_ref(pd); 3768700e3e7SMoni Shoua rxe_drop_index(srq); 3778700e3e7SMoni Shoua rxe_drop_ref(srq); 3788700e3e7SMoni Shoua err1: 3798700e3e7SMoni Shoua return ERR_PTR(err); 3808700e3e7SMoni Shoua } 3818700e3e7SMoni Shoua 3828700e3e7SMoni Shoua static int rxe_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, 3838700e3e7SMoni Shoua enum ib_srq_attr_mask mask, 3848700e3e7SMoni Shoua struct ib_udata *udata) 3858700e3e7SMoni Shoua { 3868700e3e7SMoni Shoua int err; 3878700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 3888700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibsrq->device); 3890c43ab37SJason Gunthorpe struct rxe_modify_srq_cmd ucmd = {}; 3900c43ab37SJason Gunthorpe 3910c43ab37SJason Gunthorpe if (udata) { 3920c43ab37SJason Gunthorpe if (udata->inlen < sizeof(ucmd)) 3930c43ab37SJason Gunthorpe return -EINVAL; 3940c43ab37SJason Gunthorpe 3950c43ab37SJason Gunthorpe err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd)); 3960c43ab37SJason Gunthorpe if (err) 3970c43ab37SJason Gunthorpe return err; 3980c43ab37SJason Gunthorpe } 3998700e3e7SMoni Shoua 4008700e3e7SMoni Shoua err = rxe_srq_chk_attr(rxe, srq, attr, mask); 4018700e3e7SMoni Shoua if (err) 4028700e3e7SMoni Shoua goto err1; 4038700e3e7SMoni Shoua 4040c43ab37SJason Gunthorpe err = rxe_srq_from_attr(rxe, srq, attr, mask, &ucmd); 4058700e3e7SMoni Shoua if (err) 4068700e3e7SMoni Shoua goto err1; 4078700e3e7SMoni Shoua 4088700e3e7SMoni Shoua return 0; 4098700e3e7SMoni Shoua 4108700e3e7SMoni Shoua err1: 4118700e3e7SMoni Shoua return err; 4128700e3e7SMoni Shoua } 4138700e3e7SMoni Shoua 4148700e3e7SMoni Shoua static int rxe_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr) 4158700e3e7SMoni Shoua { 4168700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 4178700e3e7SMoni Shoua 4188700e3e7SMoni Shoua if (srq->error) 4198700e3e7SMoni Shoua return -EINVAL; 4208700e3e7SMoni Shoua 4218700e3e7SMoni Shoua attr->max_wr = srq->rq.queue->buf->index_mask; 4228700e3e7SMoni Shoua attr->max_sge = srq->rq.max_sge; 4238700e3e7SMoni Shoua attr->srq_limit = srq->limit; 4248700e3e7SMoni Shoua return 0; 4258700e3e7SMoni Shoua } 4268700e3e7SMoni Shoua 4278700e3e7SMoni Shoua static int rxe_destroy_srq(struct ib_srq *ibsrq) 4288700e3e7SMoni Shoua { 4298700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 4308700e3e7SMoni Shoua 4318700e3e7SMoni Shoua if (srq->rq.queue) 4328700e3e7SMoni Shoua rxe_queue_cleanup(srq->rq.queue); 4338700e3e7SMoni Shoua 4348700e3e7SMoni Shoua rxe_drop_ref(srq->pd); 4358700e3e7SMoni Shoua rxe_drop_index(srq); 4368700e3e7SMoni Shoua rxe_drop_ref(srq); 4378700e3e7SMoni Shoua 4388700e3e7SMoni Shoua return 0; 4398700e3e7SMoni Shoua } 4408700e3e7SMoni Shoua 441d34ac5cdSBart Van Assche static int rxe_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr, 442d34ac5cdSBart Van Assche const struct ib_recv_wr **bad_wr) 4438700e3e7SMoni Shoua { 4448700e3e7SMoni Shoua int err = 0; 4458700e3e7SMoni Shoua unsigned long flags; 4468700e3e7SMoni Shoua struct rxe_srq *srq = to_rsrq(ibsrq); 4478700e3e7SMoni Shoua 4488700e3e7SMoni Shoua spin_lock_irqsave(&srq->rq.producer_lock, flags); 4498700e3e7SMoni Shoua 4508700e3e7SMoni Shoua while (wr) { 4518700e3e7SMoni Shoua err = post_one_recv(&srq->rq, wr); 4528700e3e7SMoni Shoua if (unlikely(err)) 4538700e3e7SMoni Shoua break; 4548700e3e7SMoni Shoua wr = wr->next; 4558700e3e7SMoni Shoua } 4568700e3e7SMoni Shoua 4578700e3e7SMoni Shoua spin_unlock_irqrestore(&srq->rq.producer_lock, flags); 4588700e3e7SMoni Shoua 4598700e3e7SMoni Shoua if (err) 4608700e3e7SMoni Shoua *bad_wr = wr; 4618700e3e7SMoni Shoua 4628700e3e7SMoni Shoua return err; 4638700e3e7SMoni Shoua } 4648700e3e7SMoni Shoua 4658700e3e7SMoni Shoua static struct ib_qp *rxe_create_qp(struct ib_pd *ibpd, 4668700e3e7SMoni Shoua struct ib_qp_init_attr *init, 4678700e3e7SMoni Shoua struct ib_udata *udata) 4688700e3e7SMoni Shoua { 4698700e3e7SMoni Shoua int err; 4708700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 4718700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 4728700e3e7SMoni Shoua struct rxe_qp *qp; 4730c43ab37SJason Gunthorpe struct rxe_create_qp_resp __user *uresp = NULL; 4740c43ab37SJason Gunthorpe 4750c43ab37SJason Gunthorpe if (udata) { 4760c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 4770c43ab37SJason Gunthorpe return ERR_PTR(-EINVAL); 4780c43ab37SJason Gunthorpe uresp = udata->outbuf; 4790c43ab37SJason Gunthorpe } 4808700e3e7SMoni Shoua 4818700e3e7SMoni Shoua err = rxe_qp_chk_init(rxe, init); 4828700e3e7SMoni Shoua if (err) 4838700e3e7SMoni Shoua goto err1; 4848700e3e7SMoni Shoua 4858700e3e7SMoni Shoua qp = rxe_alloc(&rxe->qp_pool); 4868700e3e7SMoni Shoua if (!qp) { 4878700e3e7SMoni Shoua err = -ENOMEM; 4888700e3e7SMoni Shoua goto err1; 4898700e3e7SMoni Shoua } 4908700e3e7SMoni Shoua 4918700e3e7SMoni Shoua if (udata) { 4928700e3e7SMoni Shoua if (udata->inlen) { 4938700e3e7SMoni Shoua err = -EINVAL; 4945b9ea16cSAndrew Boyer goto err2; 4958700e3e7SMoni Shoua } 4968700e3e7SMoni Shoua qp->is_user = 1; 4978700e3e7SMoni Shoua } 4988700e3e7SMoni Shoua 4998700e3e7SMoni Shoua rxe_add_index(qp); 5008700e3e7SMoni Shoua 5010c43ab37SJason Gunthorpe err = rxe_qp_from_init(rxe, qp, pd, init, uresp, ibpd); 5028700e3e7SMoni Shoua if (err) 5035b9ea16cSAndrew Boyer goto err3; 5048700e3e7SMoni Shoua 5058700e3e7SMoni Shoua return &qp->ibqp; 5068700e3e7SMoni Shoua 5075b9ea16cSAndrew Boyer err3: 5088700e3e7SMoni Shoua rxe_drop_index(qp); 5095b9ea16cSAndrew Boyer err2: 5108700e3e7SMoni Shoua rxe_drop_ref(qp); 5118700e3e7SMoni Shoua err1: 5128700e3e7SMoni Shoua return ERR_PTR(err); 5138700e3e7SMoni Shoua } 5148700e3e7SMoni Shoua 5158700e3e7SMoni Shoua static int rxe_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 5168700e3e7SMoni Shoua int mask, struct ib_udata *udata) 5178700e3e7SMoni Shoua { 5188700e3e7SMoni Shoua int err; 5198700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 5208700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 5218700e3e7SMoni Shoua 5228700e3e7SMoni Shoua err = rxe_qp_chk_attr(rxe, qp, attr, mask); 5238700e3e7SMoni Shoua if (err) 5248700e3e7SMoni Shoua goto err1; 5258700e3e7SMoni Shoua 5268700e3e7SMoni Shoua err = rxe_qp_from_attr(qp, attr, mask, udata); 5278700e3e7SMoni Shoua if (err) 5288700e3e7SMoni Shoua goto err1; 5298700e3e7SMoni Shoua 5308700e3e7SMoni Shoua return 0; 5318700e3e7SMoni Shoua 5328700e3e7SMoni Shoua err1: 5338700e3e7SMoni Shoua return err; 5348700e3e7SMoni Shoua } 5358700e3e7SMoni Shoua 5368700e3e7SMoni Shoua static int rxe_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 5378700e3e7SMoni Shoua int mask, struct ib_qp_init_attr *init) 5388700e3e7SMoni Shoua { 5398700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 5408700e3e7SMoni Shoua 5418700e3e7SMoni Shoua rxe_qp_to_init(qp, init); 5428700e3e7SMoni Shoua rxe_qp_to_attr(qp, attr, mask); 5438700e3e7SMoni Shoua 5448700e3e7SMoni Shoua return 0; 5458700e3e7SMoni Shoua } 5468700e3e7SMoni Shoua 5478700e3e7SMoni Shoua static int rxe_destroy_qp(struct ib_qp *ibqp) 5488700e3e7SMoni Shoua { 5498700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 5508700e3e7SMoni Shoua 5518700e3e7SMoni Shoua rxe_qp_destroy(qp); 5528700e3e7SMoni Shoua rxe_drop_index(qp); 5538700e3e7SMoni Shoua rxe_drop_ref(qp); 5548700e3e7SMoni Shoua return 0; 5558700e3e7SMoni Shoua } 5568700e3e7SMoni Shoua 557f696bf6dSBart Van Assche static int validate_send_wr(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 5588700e3e7SMoni Shoua unsigned int mask, unsigned int length) 5598700e3e7SMoni Shoua { 5608700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 5618700e3e7SMoni Shoua struct rxe_sq *sq = &qp->sq; 5628700e3e7SMoni Shoua 5638700e3e7SMoni Shoua if (unlikely(num_sge > sq->max_sge)) 5648700e3e7SMoni Shoua goto err1; 5658700e3e7SMoni Shoua 5668700e3e7SMoni Shoua if (unlikely(mask & WR_ATOMIC_MASK)) { 5678700e3e7SMoni Shoua if (length < 8) 5688700e3e7SMoni Shoua goto err1; 5698700e3e7SMoni Shoua 5708700e3e7SMoni Shoua if (atomic_wr(ibwr)->remote_addr & 0x7) 5718700e3e7SMoni Shoua goto err1; 5728700e3e7SMoni Shoua } 5738700e3e7SMoni Shoua 5748700e3e7SMoni Shoua if (unlikely((ibwr->send_flags & IB_SEND_INLINE) && 5758700e3e7SMoni Shoua (length > sq->max_inline))) 5768700e3e7SMoni Shoua goto err1; 5778700e3e7SMoni Shoua 5788700e3e7SMoni Shoua return 0; 5798700e3e7SMoni Shoua 5808700e3e7SMoni Shoua err1: 5818700e3e7SMoni Shoua return -EINVAL; 5828700e3e7SMoni Shoua } 5838700e3e7SMoni Shoua 5848700e3e7SMoni Shoua static void init_send_wr(struct rxe_qp *qp, struct rxe_send_wr *wr, 585f696bf6dSBart Van Assche const struct ib_send_wr *ibwr) 5868700e3e7SMoni Shoua { 5878700e3e7SMoni Shoua wr->wr_id = ibwr->wr_id; 5888700e3e7SMoni Shoua wr->num_sge = ibwr->num_sge; 5898700e3e7SMoni Shoua wr->opcode = ibwr->opcode; 5908700e3e7SMoni Shoua wr->send_flags = ibwr->send_flags; 5918700e3e7SMoni Shoua 5928700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_UD || 5938700e3e7SMoni Shoua qp_type(qp) == IB_QPT_SMI || 5948700e3e7SMoni Shoua qp_type(qp) == IB_QPT_GSI) { 5958700e3e7SMoni Shoua wr->wr.ud.remote_qpn = ud_wr(ibwr)->remote_qpn; 5968700e3e7SMoni Shoua wr->wr.ud.remote_qkey = ud_wr(ibwr)->remote_qkey; 5978700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_GSI) 5988700e3e7SMoni Shoua wr->wr.ud.pkey_index = ud_wr(ibwr)->pkey_index; 5998700e3e7SMoni Shoua if (wr->opcode == IB_WR_SEND_WITH_IMM) 6008700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 6018700e3e7SMoni Shoua } else { 6028700e3e7SMoni Shoua switch (wr->opcode) { 6038700e3e7SMoni Shoua case IB_WR_RDMA_WRITE_WITH_IMM: 6048700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 605ea6ee93bSBart Van Assche /* fall through */ 6068700e3e7SMoni Shoua case IB_WR_RDMA_READ: 6078700e3e7SMoni Shoua case IB_WR_RDMA_WRITE: 6088700e3e7SMoni Shoua wr->wr.rdma.remote_addr = rdma_wr(ibwr)->remote_addr; 6098700e3e7SMoni Shoua wr->wr.rdma.rkey = rdma_wr(ibwr)->rkey; 6108700e3e7SMoni Shoua break; 6118700e3e7SMoni Shoua case IB_WR_SEND_WITH_IMM: 6128700e3e7SMoni Shoua wr->ex.imm_data = ibwr->ex.imm_data; 6138700e3e7SMoni Shoua break; 6148700e3e7SMoni Shoua case IB_WR_SEND_WITH_INV: 6158700e3e7SMoni Shoua wr->ex.invalidate_rkey = ibwr->ex.invalidate_rkey; 6168700e3e7SMoni Shoua break; 6178700e3e7SMoni Shoua case IB_WR_ATOMIC_CMP_AND_SWP: 6188700e3e7SMoni Shoua case IB_WR_ATOMIC_FETCH_AND_ADD: 6198700e3e7SMoni Shoua wr->wr.atomic.remote_addr = 6208700e3e7SMoni Shoua atomic_wr(ibwr)->remote_addr; 6218700e3e7SMoni Shoua wr->wr.atomic.compare_add = 6228700e3e7SMoni Shoua atomic_wr(ibwr)->compare_add; 6238700e3e7SMoni Shoua wr->wr.atomic.swap = atomic_wr(ibwr)->swap; 6248700e3e7SMoni Shoua wr->wr.atomic.rkey = atomic_wr(ibwr)->rkey; 6258700e3e7SMoni Shoua break; 6268700e3e7SMoni Shoua case IB_WR_LOCAL_INV: 6278700e3e7SMoni Shoua wr->ex.invalidate_rkey = ibwr->ex.invalidate_rkey; 6288700e3e7SMoni Shoua break; 6298700e3e7SMoni Shoua case IB_WR_REG_MR: 6308700e3e7SMoni Shoua wr->wr.reg.mr = reg_wr(ibwr)->mr; 6318700e3e7SMoni Shoua wr->wr.reg.key = reg_wr(ibwr)->key; 6328700e3e7SMoni Shoua wr->wr.reg.access = reg_wr(ibwr)->access; 6338700e3e7SMoni Shoua break; 6348700e3e7SMoni Shoua default: 6358700e3e7SMoni Shoua break; 6368700e3e7SMoni Shoua } 6378700e3e7SMoni Shoua } 6388700e3e7SMoni Shoua } 6398700e3e7SMoni Shoua 640f696bf6dSBart Van Assche static int init_send_wqe(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 6418700e3e7SMoni Shoua unsigned int mask, unsigned int length, 6428700e3e7SMoni Shoua struct rxe_send_wqe *wqe) 6438700e3e7SMoni Shoua { 6448700e3e7SMoni Shoua int num_sge = ibwr->num_sge; 6458700e3e7SMoni Shoua struct ib_sge *sge; 6468700e3e7SMoni Shoua int i; 6478700e3e7SMoni Shoua u8 *p; 6488700e3e7SMoni Shoua 6498700e3e7SMoni Shoua init_send_wr(qp, &wqe->wr, ibwr); 6508700e3e7SMoni Shoua 6518700e3e7SMoni Shoua if (qp_type(qp) == IB_QPT_UD || 6528700e3e7SMoni Shoua qp_type(qp) == IB_QPT_SMI || 6538700e3e7SMoni Shoua qp_type(qp) == IB_QPT_GSI) 6548700e3e7SMoni Shoua memcpy(&wqe->av, &to_rah(ud_wr(ibwr)->ah)->av, sizeof(wqe->av)); 6558700e3e7SMoni Shoua 6568700e3e7SMoni Shoua if (unlikely(ibwr->send_flags & IB_SEND_INLINE)) { 6578700e3e7SMoni Shoua p = wqe->dma.inline_data; 6588700e3e7SMoni Shoua 6598700e3e7SMoni Shoua sge = ibwr->sg_list; 6608700e3e7SMoni Shoua for (i = 0; i < num_sge; i++, sge++) { 6618700e3e7SMoni Shoua memcpy(p, (void *)(uintptr_t)sge->addr, 6628700e3e7SMoni Shoua sge->length); 6638700e3e7SMoni Shoua 6648700e3e7SMoni Shoua p += sge->length; 6658700e3e7SMoni Shoua } 6668700e3e7SMoni Shoua } else if (mask & WR_REG_MASK) { 6678700e3e7SMoni Shoua wqe->mask = mask; 6688700e3e7SMoni Shoua wqe->state = wqe_state_posted; 6698700e3e7SMoni Shoua return 0; 6708700e3e7SMoni Shoua } else 6718700e3e7SMoni Shoua memcpy(wqe->dma.sge, ibwr->sg_list, 6728700e3e7SMoni Shoua num_sge * sizeof(struct ib_sge)); 6738700e3e7SMoni Shoua 674a6544a62SBart Van Assche wqe->iova = mask & WR_ATOMIC_MASK ? atomic_wr(ibwr)->remote_addr : 675a6544a62SBart Van Assche mask & WR_READ_OR_WRITE_MASK ? rdma_wr(ibwr)->remote_addr : 0; 6768700e3e7SMoni Shoua wqe->mask = mask; 6778700e3e7SMoni Shoua wqe->dma.length = length; 6788700e3e7SMoni Shoua wqe->dma.resid = length; 6798700e3e7SMoni Shoua wqe->dma.num_sge = num_sge; 6808700e3e7SMoni Shoua wqe->dma.cur_sge = 0; 6818700e3e7SMoni Shoua wqe->dma.sge_offset = 0; 6828700e3e7SMoni Shoua wqe->state = wqe_state_posted; 6838700e3e7SMoni Shoua wqe->ssn = atomic_add_return(1, &qp->ssn); 6848700e3e7SMoni Shoua 6858700e3e7SMoni Shoua return 0; 6868700e3e7SMoni Shoua } 6878700e3e7SMoni Shoua 688f696bf6dSBart Van Assche static int post_one_send(struct rxe_qp *qp, const struct ib_send_wr *ibwr, 689e404f945SParav Pandit unsigned int mask, u32 length) 6908700e3e7SMoni Shoua { 6918700e3e7SMoni Shoua int err; 6928700e3e7SMoni Shoua struct rxe_sq *sq = &qp->sq; 6938700e3e7SMoni Shoua struct rxe_send_wqe *send_wqe; 6948700e3e7SMoni Shoua unsigned long flags; 6958700e3e7SMoni Shoua 6968700e3e7SMoni Shoua err = validate_send_wr(qp, ibwr, mask, length); 6978700e3e7SMoni Shoua if (err) 6988700e3e7SMoni Shoua return err; 6998700e3e7SMoni Shoua 7008700e3e7SMoni Shoua spin_lock_irqsave(&qp->sq.sq_lock, flags); 7018700e3e7SMoni Shoua 7028700e3e7SMoni Shoua if (unlikely(queue_full(sq->queue))) { 7038700e3e7SMoni Shoua err = -ENOMEM; 7048700e3e7SMoni Shoua goto err1; 7058700e3e7SMoni Shoua } 7068700e3e7SMoni Shoua 7078700e3e7SMoni Shoua send_wqe = producer_addr(sq->queue); 7088700e3e7SMoni Shoua 7098700e3e7SMoni Shoua err = init_send_wqe(qp, ibwr, mask, length, send_wqe); 7108700e3e7SMoni Shoua if (unlikely(err)) 7118700e3e7SMoni Shoua goto err1; 7128700e3e7SMoni Shoua 7138700e3e7SMoni Shoua /* 7148700e3e7SMoni Shoua * make sure all changes to the work queue are 7158700e3e7SMoni Shoua * written before we update the producer pointer 7168700e3e7SMoni Shoua */ 7178700e3e7SMoni Shoua smp_wmb(); 7188700e3e7SMoni Shoua 7198700e3e7SMoni Shoua advance_producer(sq->queue); 7208700e3e7SMoni Shoua spin_unlock_irqrestore(&qp->sq.sq_lock, flags); 7218700e3e7SMoni Shoua 7228700e3e7SMoni Shoua return 0; 7238700e3e7SMoni Shoua 7248700e3e7SMoni Shoua err1: 7258700e3e7SMoni Shoua spin_unlock_irqrestore(&qp->sq.sq_lock, flags); 7268700e3e7SMoni Shoua return err; 7278700e3e7SMoni Shoua } 7288700e3e7SMoni Shoua 729d34ac5cdSBart Van Assche static int rxe_post_send_kernel(struct rxe_qp *qp, const struct ib_send_wr *wr, 730d34ac5cdSBart Van Assche const struct ib_send_wr **bad_wr) 7318700e3e7SMoni Shoua { 7328700e3e7SMoni Shoua int err = 0; 7338700e3e7SMoni Shoua unsigned int mask; 7348700e3e7SMoni Shoua unsigned int length = 0; 7358700e3e7SMoni Shoua int i; 7368700e3e7SMoni Shoua 7378700e3e7SMoni Shoua while (wr) { 7388700e3e7SMoni Shoua mask = wr_opcode_mask(wr->opcode, qp); 7398700e3e7SMoni Shoua if (unlikely(!mask)) { 7408700e3e7SMoni Shoua err = -EINVAL; 7418700e3e7SMoni Shoua *bad_wr = wr; 7428700e3e7SMoni Shoua break; 7438700e3e7SMoni Shoua } 7448700e3e7SMoni Shoua 7458700e3e7SMoni Shoua if (unlikely((wr->send_flags & IB_SEND_INLINE) && 7468700e3e7SMoni Shoua !(mask & WR_INLINE_MASK))) { 7478700e3e7SMoni Shoua err = -EINVAL; 7488700e3e7SMoni Shoua *bad_wr = wr; 7498700e3e7SMoni Shoua break; 7508700e3e7SMoni Shoua } 7518700e3e7SMoni Shoua 7528700e3e7SMoni Shoua length = 0; 7538700e3e7SMoni Shoua for (i = 0; i < wr->num_sge; i++) 7548700e3e7SMoni Shoua length += wr->sg_list[i].length; 7558700e3e7SMoni Shoua 7568700e3e7SMoni Shoua err = post_one_send(qp, wr, mask, length); 7578700e3e7SMoni Shoua 7588700e3e7SMoni Shoua if (err) { 7598700e3e7SMoni Shoua *bad_wr = wr; 7608700e3e7SMoni Shoua break; 7618700e3e7SMoni Shoua } 7628700e3e7SMoni Shoua wr = wr->next; 7638700e3e7SMoni Shoua } 7648700e3e7SMoni Shoua 7651661d3b0SAlexandru Moise rxe_run_task(&qp->req.task, 1); 7666f301e06SBart Van Assche if (unlikely(qp->req.state == QP_STATE_ERROR)) 7676f301e06SBart Van Assche rxe_run_task(&qp->comp.task, 1); 7688700e3e7SMoni Shoua 7698700e3e7SMoni Shoua return err; 7708700e3e7SMoni Shoua } 7718700e3e7SMoni Shoua 772d34ac5cdSBart Van Assche static int rxe_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, 773d34ac5cdSBart Van Assche const struct ib_send_wr **bad_wr) 774063af595SParav Pandit { 775063af595SParav Pandit struct rxe_qp *qp = to_rqp(ibqp); 776063af595SParav Pandit 777063af595SParav Pandit if (unlikely(!qp->valid)) { 778063af595SParav Pandit *bad_wr = wr; 779063af595SParav Pandit return -EINVAL; 780063af595SParav Pandit } 781063af595SParav Pandit 782063af595SParav Pandit if (unlikely(qp->req.state < QP_STATE_READY)) { 783063af595SParav Pandit *bad_wr = wr; 784063af595SParav Pandit return -EINVAL; 785063af595SParav Pandit } 786063af595SParav Pandit 787063af595SParav Pandit if (qp->is_user) { 788063af595SParav Pandit /* Utilize process context to do protocol processing */ 789063af595SParav Pandit rxe_run_task(&qp->req.task, 0); 790063af595SParav Pandit return 0; 791063af595SParav Pandit } else 792063af595SParav Pandit return rxe_post_send_kernel(qp, wr, bad_wr); 793063af595SParav Pandit } 794063af595SParav Pandit 795d34ac5cdSBart Van Assche static int rxe_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr, 796d34ac5cdSBart Van Assche const struct ib_recv_wr **bad_wr) 7978700e3e7SMoni Shoua { 7988700e3e7SMoni Shoua int err = 0; 7998700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 8008700e3e7SMoni Shoua struct rxe_rq *rq = &qp->rq; 8018700e3e7SMoni Shoua unsigned long flags; 8028700e3e7SMoni Shoua 8038700e3e7SMoni Shoua if (unlikely((qp_state(qp) < IB_QPS_INIT) || !qp->valid)) { 8048700e3e7SMoni Shoua *bad_wr = wr; 8058700e3e7SMoni Shoua err = -EINVAL; 8068700e3e7SMoni Shoua goto err1; 8078700e3e7SMoni Shoua } 8088700e3e7SMoni Shoua 8098700e3e7SMoni Shoua if (unlikely(qp->srq)) { 8108700e3e7SMoni Shoua *bad_wr = wr; 8118700e3e7SMoni Shoua err = -EINVAL; 8128700e3e7SMoni Shoua goto err1; 8138700e3e7SMoni Shoua } 8148700e3e7SMoni Shoua 8158700e3e7SMoni Shoua spin_lock_irqsave(&rq->producer_lock, flags); 8168700e3e7SMoni Shoua 8178700e3e7SMoni Shoua while (wr) { 8188700e3e7SMoni Shoua err = post_one_recv(rq, wr); 8198700e3e7SMoni Shoua if (unlikely(err)) { 8208700e3e7SMoni Shoua *bad_wr = wr; 8218700e3e7SMoni Shoua break; 8228700e3e7SMoni Shoua } 8238700e3e7SMoni Shoua wr = wr->next; 8248700e3e7SMoni Shoua } 8258700e3e7SMoni Shoua 8268700e3e7SMoni Shoua spin_unlock_irqrestore(&rq->producer_lock, flags); 8278700e3e7SMoni Shoua 82812171971SVijay Immanuel if (qp->resp.state == QP_STATE_ERROR) 82912171971SVijay Immanuel rxe_run_task(&qp->resp.task, 1); 83012171971SVijay Immanuel 8318700e3e7SMoni Shoua err1: 8328700e3e7SMoni Shoua return err; 8338700e3e7SMoni Shoua } 8348700e3e7SMoni Shoua 8358700e3e7SMoni Shoua static struct ib_cq *rxe_create_cq(struct ib_device *dev, 8368700e3e7SMoni Shoua const struct ib_cq_init_attr *attr, 8378700e3e7SMoni Shoua struct ib_ucontext *context, 8388700e3e7SMoni Shoua struct ib_udata *udata) 8398700e3e7SMoni Shoua { 8408700e3e7SMoni Shoua int err; 8418700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(dev); 8428700e3e7SMoni Shoua struct rxe_cq *cq; 8430c43ab37SJason Gunthorpe struct rxe_create_cq_resp __user *uresp = NULL; 8440c43ab37SJason Gunthorpe 8450c43ab37SJason Gunthorpe if (udata) { 8460c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 8470c43ab37SJason Gunthorpe return ERR_PTR(-EINVAL); 8480c43ab37SJason Gunthorpe uresp = udata->outbuf; 8490c43ab37SJason Gunthorpe } 8508700e3e7SMoni Shoua 8518700e3e7SMoni Shoua if (attr->flags) 8528700e3e7SMoni Shoua return ERR_PTR(-EINVAL); 8538700e3e7SMoni Shoua 854b92ec0feSJason Gunthorpe err = rxe_cq_chk_attr(rxe, NULL, attr->cqe, attr->comp_vector); 8558700e3e7SMoni Shoua if (err) 8568700e3e7SMoni Shoua goto err1; 8578700e3e7SMoni Shoua 8588700e3e7SMoni Shoua cq = rxe_alloc(&rxe->cq_pool); 8598700e3e7SMoni Shoua if (!cq) { 8608700e3e7SMoni Shoua err = -ENOMEM; 8618700e3e7SMoni Shoua goto err1; 8628700e3e7SMoni Shoua } 8638700e3e7SMoni Shoua 8648700e3e7SMoni Shoua err = rxe_cq_from_init(rxe, cq, attr->cqe, attr->comp_vector, 8650c43ab37SJason Gunthorpe context, uresp); 8668700e3e7SMoni Shoua if (err) 8678700e3e7SMoni Shoua goto err2; 8688700e3e7SMoni Shoua 8698700e3e7SMoni Shoua return &cq->ibcq; 8708700e3e7SMoni Shoua 8718700e3e7SMoni Shoua err2: 8728700e3e7SMoni Shoua rxe_drop_ref(cq); 8738700e3e7SMoni Shoua err1: 8748700e3e7SMoni Shoua return ERR_PTR(err); 8758700e3e7SMoni Shoua } 8768700e3e7SMoni Shoua 8778700e3e7SMoni Shoua static int rxe_destroy_cq(struct ib_cq *ibcq) 8788700e3e7SMoni Shoua { 8798700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8808700e3e7SMoni Shoua 881bfc3ae05SAndrew Boyer rxe_cq_disable(cq); 882bfc3ae05SAndrew Boyer 8838700e3e7SMoni Shoua rxe_drop_ref(cq); 8848700e3e7SMoni Shoua return 0; 8858700e3e7SMoni Shoua } 8868700e3e7SMoni Shoua 8878700e3e7SMoni Shoua static int rxe_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) 8888700e3e7SMoni Shoua { 8898700e3e7SMoni Shoua int err; 8908700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 8918700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibcq->device); 8920c43ab37SJason Gunthorpe struct rxe_resize_cq_resp __user *uresp = NULL; 8930c43ab37SJason Gunthorpe 8940c43ab37SJason Gunthorpe if (udata) { 8950c43ab37SJason Gunthorpe if (udata->outlen < sizeof(*uresp)) 8960c43ab37SJason Gunthorpe return -EINVAL; 8970c43ab37SJason Gunthorpe uresp = udata->outbuf; 8980c43ab37SJason Gunthorpe } 8998700e3e7SMoni Shoua 900b92ec0feSJason Gunthorpe err = rxe_cq_chk_attr(rxe, cq, cqe, 0); 9018700e3e7SMoni Shoua if (err) 9028700e3e7SMoni Shoua goto err1; 9038700e3e7SMoni Shoua 9040c43ab37SJason Gunthorpe err = rxe_cq_resize_queue(cq, cqe, uresp); 9058700e3e7SMoni Shoua if (err) 9068700e3e7SMoni Shoua goto err1; 9078700e3e7SMoni Shoua 9088700e3e7SMoni Shoua return 0; 9098700e3e7SMoni Shoua 9108700e3e7SMoni Shoua err1: 9118700e3e7SMoni Shoua return err; 9128700e3e7SMoni Shoua } 9138700e3e7SMoni Shoua 9148700e3e7SMoni Shoua static int rxe_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) 9158700e3e7SMoni Shoua { 9168700e3e7SMoni Shoua int i; 9178700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 9188700e3e7SMoni Shoua struct rxe_cqe *cqe; 9198700e3e7SMoni Shoua unsigned long flags; 9208700e3e7SMoni Shoua 9218700e3e7SMoni Shoua spin_lock_irqsave(&cq->cq_lock, flags); 9228700e3e7SMoni Shoua for (i = 0; i < num_entries; i++) { 9238700e3e7SMoni Shoua cqe = queue_head(cq->queue); 9248700e3e7SMoni Shoua if (!cqe) 9258700e3e7SMoni Shoua break; 9268700e3e7SMoni Shoua 9278700e3e7SMoni Shoua memcpy(wc++, &cqe->ibwc, sizeof(*wc)); 9288700e3e7SMoni Shoua advance_consumer(cq->queue); 9298700e3e7SMoni Shoua } 9308700e3e7SMoni Shoua spin_unlock_irqrestore(&cq->cq_lock, flags); 9318700e3e7SMoni Shoua 9328700e3e7SMoni Shoua return i; 9338700e3e7SMoni Shoua } 9348700e3e7SMoni Shoua 9358700e3e7SMoni Shoua static int rxe_peek_cq(struct ib_cq *ibcq, int wc_cnt) 9368700e3e7SMoni Shoua { 9378700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 9388700e3e7SMoni Shoua int count = queue_count(cq->queue); 9398700e3e7SMoni Shoua 9408700e3e7SMoni Shoua return (count > wc_cnt) ? wc_cnt : count; 9418700e3e7SMoni Shoua } 9428700e3e7SMoni Shoua 9438700e3e7SMoni Shoua static int rxe_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) 9448700e3e7SMoni Shoua { 9458700e3e7SMoni Shoua struct rxe_cq *cq = to_rcq(ibcq); 946accacb8fSAndrew Boyer unsigned long irq_flags; 947accacb8fSAndrew Boyer int ret = 0; 9488700e3e7SMoni Shoua 949accacb8fSAndrew Boyer spin_lock_irqsave(&cq->cq_lock, irq_flags); 9508700e3e7SMoni Shoua if (cq->notify != IB_CQ_NEXT_COMP) 9518700e3e7SMoni Shoua cq->notify = flags & IB_CQ_SOLICITED_MASK; 9528700e3e7SMoni Shoua 953accacb8fSAndrew Boyer if ((flags & IB_CQ_REPORT_MISSED_EVENTS) && !queue_empty(cq->queue)) 954accacb8fSAndrew Boyer ret = 1; 955accacb8fSAndrew Boyer 956accacb8fSAndrew Boyer spin_unlock_irqrestore(&cq->cq_lock, irq_flags); 957accacb8fSAndrew Boyer 958accacb8fSAndrew Boyer return ret; 9598700e3e7SMoni Shoua } 9608700e3e7SMoni Shoua 9618700e3e7SMoni Shoua static struct ib_mr *rxe_get_dma_mr(struct ib_pd *ibpd, int access) 9628700e3e7SMoni Shoua { 9638700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 9648700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 9658700e3e7SMoni Shoua struct rxe_mem *mr; 9668700e3e7SMoni Shoua int err; 9678700e3e7SMoni Shoua 9688700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 9698700e3e7SMoni Shoua if (!mr) { 9708700e3e7SMoni Shoua err = -ENOMEM; 9718700e3e7SMoni Shoua goto err1; 9728700e3e7SMoni Shoua } 9738700e3e7SMoni Shoua 9748700e3e7SMoni Shoua rxe_add_index(mr); 9758700e3e7SMoni Shoua 9768700e3e7SMoni Shoua rxe_add_ref(pd); 9778700e3e7SMoni Shoua 978e12ee8ceSZhu Yanjun err = rxe_mem_init_dma(pd, access, mr); 9798700e3e7SMoni Shoua if (err) 9808700e3e7SMoni Shoua goto err2; 9818700e3e7SMoni Shoua 9828700e3e7SMoni Shoua return &mr->ibmr; 9838700e3e7SMoni Shoua 9848700e3e7SMoni Shoua err2: 9858700e3e7SMoni Shoua rxe_drop_ref(pd); 9868700e3e7SMoni Shoua rxe_drop_index(mr); 9878700e3e7SMoni Shoua rxe_drop_ref(mr); 9888700e3e7SMoni Shoua err1: 9898700e3e7SMoni Shoua return ERR_PTR(err); 9908700e3e7SMoni Shoua } 9918700e3e7SMoni Shoua 9928700e3e7SMoni Shoua static struct ib_mr *rxe_reg_user_mr(struct ib_pd *ibpd, 9938700e3e7SMoni Shoua u64 start, 9948700e3e7SMoni Shoua u64 length, 9958700e3e7SMoni Shoua u64 iova, 9968700e3e7SMoni Shoua int access, struct ib_udata *udata) 9978700e3e7SMoni Shoua { 9988700e3e7SMoni Shoua int err; 9998700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 10008700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 10018700e3e7SMoni Shoua struct rxe_mem *mr; 10028700e3e7SMoni Shoua 10038700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 10048700e3e7SMoni Shoua if (!mr) { 10058700e3e7SMoni Shoua err = -ENOMEM; 10068700e3e7SMoni Shoua goto err2; 10078700e3e7SMoni Shoua } 10088700e3e7SMoni Shoua 10098700e3e7SMoni Shoua rxe_add_index(mr); 10108700e3e7SMoni Shoua 10118700e3e7SMoni Shoua rxe_add_ref(pd); 10128700e3e7SMoni Shoua 1013e12ee8ceSZhu Yanjun err = rxe_mem_init_user(pd, start, length, iova, 10148700e3e7SMoni Shoua access, udata, mr); 10158700e3e7SMoni Shoua if (err) 10168700e3e7SMoni Shoua goto err3; 10178700e3e7SMoni Shoua 10188700e3e7SMoni Shoua return &mr->ibmr; 10198700e3e7SMoni Shoua 10208700e3e7SMoni Shoua err3: 10218700e3e7SMoni Shoua rxe_drop_ref(pd); 10228700e3e7SMoni Shoua rxe_drop_index(mr); 10238700e3e7SMoni Shoua rxe_drop_ref(mr); 10248700e3e7SMoni Shoua err2: 10258700e3e7SMoni Shoua return ERR_PTR(err); 10268700e3e7SMoni Shoua } 10278700e3e7SMoni Shoua 10288700e3e7SMoni Shoua static int rxe_dereg_mr(struct ib_mr *ibmr) 10298700e3e7SMoni Shoua { 10308700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 10318700e3e7SMoni Shoua 10328700e3e7SMoni Shoua mr->state = RXE_MEM_STATE_ZOMBIE; 10338700e3e7SMoni Shoua rxe_drop_ref(mr->pd); 10348700e3e7SMoni Shoua rxe_drop_index(mr); 10358700e3e7SMoni Shoua rxe_drop_ref(mr); 10368700e3e7SMoni Shoua return 0; 10378700e3e7SMoni Shoua } 10388700e3e7SMoni Shoua 10398700e3e7SMoni Shoua static struct ib_mr *rxe_alloc_mr(struct ib_pd *ibpd, 10408700e3e7SMoni Shoua enum ib_mr_type mr_type, 10418700e3e7SMoni Shoua u32 max_num_sg) 10428700e3e7SMoni Shoua { 10438700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibpd->device); 10448700e3e7SMoni Shoua struct rxe_pd *pd = to_rpd(ibpd); 10458700e3e7SMoni Shoua struct rxe_mem *mr; 10468700e3e7SMoni Shoua int err; 10478700e3e7SMoni Shoua 10488700e3e7SMoni Shoua if (mr_type != IB_MR_TYPE_MEM_REG) 10498700e3e7SMoni Shoua return ERR_PTR(-EINVAL); 10508700e3e7SMoni Shoua 10518700e3e7SMoni Shoua mr = rxe_alloc(&rxe->mr_pool); 10528700e3e7SMoni Shoua if (!mr) { 10538700e3e7SMoni Shoua err = -ENOMEM; 10548700e3e7SMoni Shoua goto err1; 10558700e3e7SMoni Shoua } 10568700e3e7SMoni Shoua 10578700e3e7SMoni Shoua rxe_add_index(mr); 10588700e3e7SMoni Shoua 10598700e3e7SMoni Shoua rxe_add_ref(pd); 10608700e3e7SMoni Shoua 1061e12ee8ceSZhu Yanjun err = rxe_mem_init_fast(pd, max_num_sg, mr); 10628700e3e7SMoni Shoua if (err) 10638700e3e7SMoni Shoua goto err2; 10648700e3e7SMoni Shoua 10658700e3e7SMoni Shoua return &mr->ibmr; 10668700e3e7SMoni Shoua 10678700e3e7SMoni Shoua err2: 10688700e3e7SMoni Shoua rxe_drop_ref(pd); 10698700e3e7SMoni Shoua rxe_drop_index(mr); 10708700e3e7SMoni Shoua rxe_drop_ref(mr); 10718700e3e7SMoni Shoua err1: 10728700e3e7SMoni Shoua return ERR_PTR(err); 10738700e3e7SMoni Shoua } 10748700e3e7SMoni Shoua 10758700e3e7SMoni Shoua static int rxe_set_page(struct ib_mr *ibmr, u64 addr) 10768700e3e7SMoni Shoua { 10778700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 10788700e3e7SMoni Shoua struct rxe_map *map; 10798700e3e7SMoni Shoua struct rxe_phys_buf *buf; 10808700e3e7SMoni Shoua 10818700e3e7SMoni Shoua if (unlikely(mr->nbuf == mr->num_buf)) 10828700e3e7SMoni Shoua return -ENOMEM; 10838700e3e7SMoni Shoua 10848700e3e7SMoni Shoua map = mr->map[mr->nbuf / RXE_BUF_PER_MAP]; 10858700e3e7SMoni Shoua buf = &map->buf[mr->nbuf % RXE_BUF_PER_MAP]; 10868700e3e7SMoni Shoua 10878700e3e7SMoni Shoua buf->addr = addr; 10888700e3e7SMoni Shoua buf->size = ibmr->page_size; 10898700e3e7SMoni Shoua mr->nbuf++; 10908700e3e7SMoni Shoua 10918700e3e7SMoni Shoua return 0; 10928700e3e7SMoni Shoua } 10938700e3e7SMoni Shoua 1094e404f945SParav Pandit static int rxe_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, 1095e404f945SParav Pandit int sg_nents, unsigned int *sg_offset) 10968700e3e7SMoni Shoua { 10978700e3e7SMoni Shoua struct rxe_mem *mr = to_rmr(ibmr); 10988700e3e7SMoni Shoua int n; 10998700e3e7SMoni Shoua 11008700e3e7SMoni Shoua mr->nbuf = 0; 11018700e3e7SMoni Shoua 11028700e3e7SMoni Shoua n = ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, rxe_set_page); 11038700e3e7SMoni Shoua 11048700e3e7SMoni Shoua mr->va = ibmr->iova; 11058700e3e7SMoni Shoua mr->iova = ibmr->iova; 11068700e3e7SMoni Shoua mr->length = ibmr->length; 11078700e3e7SMoni Shoua mr->page_shift = ilog2(ibmr->page_size); 11088700e3e7SMoni Shoua mr->page_mask = ibmr->page_size - 1; 11098700e3e7SMoni Shoua mr->offset = mr->iova & mr->page_mask; 11108700e3e7SMoni Shoua 11118700e3e7SMoni Shoua return n; 11128700e3e7SMoni Shoua } 11138700e3e7SMoni Shoua 11148700e3e7SMoni Shoua static int rxe_attach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid) 11158700e3e7SMoni Shoua { 11168700e3e7SMoni Shoua int err; 11178700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 11188700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 11198700e3e7SMoni Shoua struct rxe_mc_grp *grp; 11208700e3e7SMoni Shoua 11218700e3e7SMoni Shoua /* takes a ref on grp if successful */ 11228700e3e7SMoni Shoua err = rxe_mcast_get_grp(rxe, mgid, &grp); 11238700e3e7SMoni Shoua if (err) 11248700e3e7SMoni Shoua return err; 11258700e3e7SMoni Shoua 11268700e3e7SMoni Shoua err = rxe_mcast_add_grp_elem(rxe, qp, grp); 11278700e3e7SMoni Shoua 11288700e3e7SMoni Shoua rxe_drop_ref(grp); 11298700e3e7SMoni Shoua return err; 11308700e3e7SMoni Shoua } 11318700e3e7SMoni Shoua 11328700e3e7SMoni Shoua static int rxe_detach_mcast(struct ib_qp *ibqp, union ib_gid *mgid, u16 mlid) 11338700e3e7SMoni Shoua { 11348700e3e7SMoni Shoua struct rxe_dev *rxe = to_rdev(ibqp->device); 11358700e3e7SMoni Shoua struct rxe_qp *qp = to_rqp(ibqp); 11368700e3e7SMoni Shoua 11378700e3e7SMoni Shoua return rxe_mcast_drop_grp_elem(rxe, qp, mgid); 11388700e3e7SMoni Shoua } 11398700e3e7SMoni Shoua 1140c05d2664SKamal Heib static ssize_t parent_show(struct device *device, 11418700e3e7SMoni Shoua struct device_attribute *attr, char *buf) 11428700e3e7SMoni Shoua { 11438700e3e7SMoni Shoua struct rxe_dev *rxe = container_of(device, struct rxe_dev, 11448700e3e7SMoni Shoua ib_dev.dev); 11458700e3e7SMoni Shoua 1146839f5ac0SBart Van Assche return snprintf(buf, 16, "%s\n", rxe_parent_name(rxe, 1)); 11478700e3e7SMoni Shoua } 11488700e3e7SMoni Shoua 1149c05d2664SKamal Heib static DEVICE_ATTR_RO(parent); 11508700e3e7SMoni Shoua 1151508a523fSParav Pandit static struct attribute *rxe_dev_attributes[] = { 1152508a523fSParav Pandit &dev_attr_parent.attr, 1153508a523fSParav Pandit NULL 1154508a523fSParav Pandit }; 1155508a523fSParav Pandit 1156508a523fSParav Pandit static const struct attribute_group rxe_attr_group = { 1157508a523fSParav Pandit .attrs = rxe_dev_attributes, 11588700e3e7SMoni Shoua }; 11598700e3e7SMoni Shoua 11608700e3e7SMoni Shoua int rxe_register_device(struct rxe_dev *rxe) 11618700e3e7SMoni Shoua { 11628700e3e7SMoni Shoua int err; 11638700e3e7SMoni Shoua struct ib_device *dev = &rxe->ib_dev; 11643192c53eSThomas Bogendoerfer struct crypto_shash *tfm; 11658700e3e7SMoni Shoua 11668700e3e7SMoni Shoua strlcpy(dev->node_desc, "rxe", sizeof(dev->node_desc)); 11678700e3e7SMoni Shoua 11688700e3e7SMoni Shoua dev->owner = THIS_MODULE; 11698700e3e7SMoni Shoua dev->node_type = RDMA_NODE_IB_CA; 11708700e3e7SMoni Shoua dev->phys_port_cnt = 1; 117167cf3623SSagi Grimberg dev->num_comp_vectors = num_possible_cpus(); 117285e9f1dbSBart Van Assche dev->dev.parent = rxe_dma_device(rxe); 11738700e3e7SMoni Shoua dev->local_dma_lkey = 0; 11744d6f2859SYuval Shaia addrconf_addr_eui48((unsigned char *)&dev->node_guid, 11754d6f2859SYuval Shaia rxe->ndev->dev_addr); 11760bbb3b74SBart Van Assche dev->dev.dma_ops = &dma_virt_ops; 117756012e1cSyonatanc dma_coerce_mask_and_coherent(&dev->dev, 1178efc365e7SMikhail Malygin dma_get_required_mask(&dev->dev)); 11798700e3e7SMoni Shoua 11808700e3e7SMoni Shoua dev->uverbs_abi_ver = RXE_UVERBS_ABI_VERSION; 11818700e3e7SMoni Shoua dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT) 11828700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) 11838700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_DEVICE) 11848700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_PORT) 11858700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_ALLOC_PD) 11868700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DEALLOC_PD) 11878700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_SRQ) 11888700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_SRQ) 11898700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_SRQ) 11908700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_SRQ) 11918700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_SRQ_RECV) 11928700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_QP) 11938700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_QP) 11948700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_QP) 11958700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_QP) 11968700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_SEND) 11978700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POST_RECV) 11988700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_CQ) 11998700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_RESIZE_CQ) 12008700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_CQ) 12018700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_POLL_CQ) 12028700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_PEEK_CQ) 12038700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) 12048700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_REG_MR) 12058700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DEREG_MR) 12068700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_CREATE_AH) 12078700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_MODIFY_AH) 12088700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_QUERY_AH) 12098700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DESTROY_AH) 12108700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_ATTACH_MCAST) 12118700e3e7SMoni Shoua | BIT_ULL(IB_USER_VERBS_CMD_DETACH_MCAST) 12128700e3e7SMoni Shoua ; 12138700e3e7SMoni Shoua 12148700e3e7SMoni Shoua dev->query_device = rxe_query_device; 12158700e3e7SMoni Shoua dev->modify_device = rxe_modify_device; 12168700e3e7SMoni Shoua dev->query_port = rxe_query_port; 12178700e3e7SMoni Shoua dev->modify_port = rxe_modify_port; 12188700e3e7SMoni Shoua dev->get_link_layer = rxe_get_link_layer; 12198700e3e7SMoni Shoua dev->get_netdev = rxe_get_netdev; 12208700e3e7SMoni Shoua dev->query_pkey = rxe_query_pkey; 12218700e3e7SMoni Shoua dev->alloc_ucontext = rxe_alloc_ucontext; 12228700e3e7SMoni Shoua dev->dealloc_ucontext = rxe_dealloc_ucontext; 12238700e3e7SMoni Shoua dev->mmap = rxe_mmap; 12248700e3e7SMoni Shoua dev->get_port_immutable = rxe_port_immutable; 12258700e3e7SMoni Shoua dev->alloc_pd = rxe_alloc_pd; 12268700e3e7SMoni Shoua dev->dealloc_pd = rxe_dealloc_pd; 12278700e3e7SMoni Shoua dev->create_ah = rxe_create_ah; 12288700e3e7SMoni Shoua dev->modify_ah = rxe_modify_ah; 12298700e3e7SMoni Shoua dev->query_ah = rxe_query_ah; 12308700e3e7SMoni Shoua dev->destroy_ah = rxe_destroy_ah; 12318700e3e7SMoni Shoua dev->create_srq = rxe_create_srq; 12328700e3e7SMoni Shoua dev->modify_srq = rxe_modify_srq; 12338700e3e7SMoni Shoua dev->query_srq = rxe_query_srq; 12348700e3e7SMoni Shoua dev->destroy_srq = rxe_destroy_srq; 12358700e3e7SMoni Shoua dev->post_srq_recv = rxe_post_srq_recv; 12368700e3e7SMoni Shoua dev->create_qp = rxe_create_qp; 12378700e3e7SMoni Shoua dev->modify_qp = rxe_modify_qp; 12388700e3e7SMoni Shoua dev->query_qp = rxe_query_qp; 12398700e3e7SMoni Shoua dev->destroy_qp = rxe_destroy_qp; 12408700e3e7SMoni Shoua dev->post_send = rxe_post_send; 12418700e3e7SMoni Shoua dev->post_recv = rxe_post_recv; 12428700e3e7SMoni Shoua dev->create_cq = rxe_create_cq; 12438700e3e7SMoni Shoua dev->destroy_cq = rxe_destroy_cq; 12448700e3e7SMoni Shoua dev->resize_cq = rxe_resize_cq; 12458700e3e7SMoni Shoua dev->poll_cq = rxe_poll_cq; 12468700e3e7SMoni Shoua dev->peek_cq = rxe_peek_cq; 12478700e3e7SMoni Shoua dev->req_notify_cq = rxe_req_notify_cq; 12488700e3e7SMoni Shoua dev->get_dma_mr = rxe_get_dma_mr; 12498700e3e7SMoni Shoua dev->reg_user_mr = rxe_reg_user_mr; 12508700e3e7SMoni Shoua dev->dereg_mr = rxe_dereg_mr; 12518700e3e7SMoni Shoua dev->alloc_mr = rxe_alloc_mr; 12528700e3e7SMoni Shoua dev->map_mr_sg = rxe_map_mr_sg; 12538700e3e7SMoni Shoua dev->attach_mcast = rxe_attach_mcast; 12548700e3e7SMoni Shoua dev->detach_mcast = rxe_detach_mcast; 12550b1e5b99SYonatan Cohen dev->get_hw_stats = rxe_ib_get_hw_stats; 12560b1e5b99SYonatan Cohen dev->alloc_hw_stats = rxe_ib_alloc_hw_stats; 12578700e3e7SMoni Shoua 12583192c53eSThomas Bogendoerfer tfm = crypto_alloc_shash("crc32", 0, 0); 12593192c53eSThomas Bogendoerfer if (IS_ERR(tfm)) { 126027b0b832SColin Ian King pr_err("failed to allocate crc algorithm err:%ld\n", 12613192c53eSThomas Bogendoerfer PTR_ERR(tfm)); 12623192c53eSThomas Bogendoerfer return PTR_ERR(tfm); 1263cee2688eSyonatanc } 12643192c53eSThomas Bogendoerfer rxe->tfm = tfm; 1265cee2688eSyonatanc 1266508a523fSParav Pandit rdma_set_device_sysfs_group(dev, &rxe_attr_group); 12670ede73bcSMatan Barak dev->driver_id = RDMA_DRIVER_RXE; 1268e349f858SJason Gunthorpe err = ib_register_device(dev, "rxe%d", NULL); 12698700e3e7SMoni Shoua if (err) { 127061013828SKamal Heib pr_warn("%s failed with error %d\n", __func__, err); 12718700e3e7SMoni Shoua goto err1; 12728700e3e7SMoni Shoua } 12738700e3e7SMoni Shoua 12748700e3e7SMoni Shoua return 0; 12758700e3e7SMoni Shoua 12768700e3e7SMoni Shoua err1: 1277cee2688eSyonatanc crypto_free_shash(rxe->tfm); 1278cee2688eSyonatanc 12798700e3e7SMoni Shoua return err; 12808700e3e7SMoni Shoua } 12818700e3e7SMoni Shoua 12828700e3e7SMoni Shoua int rxe_unregister_device(struct rxe_dev *rxe) 12838700e3e7SMoni Shoua { 12848700e3e7SMoni Shoua struct ib_device *dev = &rxe->ib_dev; 12858700e3e7SMoni Shoua 12868700e3e7SMoni Shoua ib_unregister_device(dev); 12878700e3e7SMoni Shoua 12888700e3e7SMoni Shoua return 0; 12898700e3e7SMoni Shoua } 1290