1e3cf00d0SUpinder Malhi /* 2e3cf00d0SUpinder Malhi * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. 3e3cf00d0SUpinder Malhi * 43805eadeSJeff Squyres * This software is available to you under a choice of one of two 53805eadeSJeff Squyres * licenses. You may choose to be licensed under the terms of the GNU 63805eadeSJeff Squyres * General Public License (GPL) Version 2, available from the file 73805eadeSJeff Squyres * COPYING in the main directory of this source tree, or the 83805eadeSJeff Squyres * BSD license below: 93805eadeSJeff Squyres * 103805eadeSJeff Squyres * Redistribution and use in source and binary forms, with or 113805eadeSJeff Squyres * without modification, are permitted provided that the following 123805eadeSJeff Squyres * conditions are met: 133805eadeSJeff Squyres * 143805eadeSJeff Squyres * - Redistributions of source code must retain the above 153805eadeSJeff Squyres * copyright notice, this list of conditions and the following 163805eadeSJeff Squyres * disclaimer. 173805eadeSJeff Squyres * 183805eadeSJeff Squyres * - Redistributions in binary form must reproduce the above 193805eadeSJeff Squyres * copyright notice, this list of conditions and the following 203805eadeSJeff Squyres * disclaimer in the documentation and/or other materials 213805eadeSJeff Squyres * provided with the distribution. 22e3cf00d0SUpinder Malhi * 23e3cf00d0SUpinder Malhi * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24e3cf00d0SUpinder Malhi * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25e3cf00d0SUpinder Malhi * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26e3cf00d0SUpinder Malhi * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27e3cf00d0SUpinder Malhi * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28e3cf00d0SUpinder Malhi * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29e3cf00d0SUpinder Malhi * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30e3cf00d0SUpinder Malhi * SOFTWARE. 31e3cf00d0SUpinder Malhi * 32e3cf00d0SUpinder Malhi */ 33e3cf00d0SUpinder Malhi #include <linux/module.h> 34e3cf00d0SUpinder Malhi #include <linux/init.h> 35e3cf00d0SUpinder Malhi #include <linux/slab.h> 36e3cf00d0SUpinder Malhi #include <linux/errno.h> 37e3cf00d0SUpinder Malhi 38e3cf00d0SUpinder Malhi #include <rdma/ib_user_verbs.h> 39e3cf00d0SUpinder Malhi #include <rdma/ib_addr.h> 40e3cf00d0SUpinder Malhi 41e3cf00d0SUpinder Malhi #include "usnic_abi.h" 42e3cf00d0SUpinder Malhi #include "usnic_ib.h" 43e3cf00d0SUpinder Malhi #include "usnic_common_util.h" 44e3cf00d0SUpinder Malhi #include "usnic_ib_qp_grp.h" 45e3cf00d0SUpinder Malhi #include "usnic_fwd.h" 46e3cf00d0SUpinder Malhi #include "usnic_log.h" 47e3cf00d0SUpinder Malhi #include "usnic_uiom.h" 48e3cf00d0SUpinder Malhi #include "usnic_transport.h" 49f5029e75SLeon Romanovsky #include "usnic_ib_verbs.h" 50e3cf00d0SUpinder Malhi 51e3cf00d0SUpinder Malhi #define USNIC_DEFAULT_TRANSPORT USNIC_TRANSPORT_ROCE_CUSTOM 52e3cf00d0SUpinder Malhi 53e3cf00d0SUpinder Malhi static void usnic_ib_fw_string_to_u64(char *fw_ver_str, u64 *fw_ver) 54e3cf00d0SUpinder Malhi { 553ea72861SNelson Escobar *fw_ver = *((u64 *)fw_ver_str); 56e3cf00d0SUpinder Malhi } 57e3cf00d0SUpinder Malhi 58e3cf00d0SUpinder Malhi static int usnic_ib_fill_create_qp_resp(struct usnic_ib_qp_grp *qp_grp, 59e3cf00d0SUpinder Malhi struct ib_udata *udata) 60e3cf00d0SUpinder Malhi { 61e3cf00d0SUpinder Malhi struct usnic_ib_dev *us_ibdev; 62e3cf00d0SUpinder Malhi struct usnic_ib_create_qp_resp resp; 63e3cf00d0SUpinder Malhi struct pci_dev *pdev; 64e3cf00d0SUpinder Malhi struct vnic_dev_bar *bar; 65e3cf00d0SUpinder Malhi struct usnic_vnic_res_chunk *chunk; 668af94ac6SUpinder Malhi struct usnic_ib_qp_grp_flow *default_flow; 67e3cf00d0SUpinder Malhi int i, err; 68e3cf00d0SUpinder Malhi 69e3cf00d0SUpinder Malhi memset(&resp, 0, sizeof(resp)); 70e3cf00d0SUpinder Malhi 71e3cf00d0SUpinder Malhi us_ibdev = qp_grp->vf->pf; 72e3cf00d0SUpinder Malhi pdev = usnic_vnic_get_pdev(qp_grp->vf->vnic); 73e3cf00d0SUpinder Malhi if (!pdev) { 74e3cf00d0SUpinder Malhi usnic_err("Failed to get pdev of qp_grp %d\n", 75e3cf00d0SUpinder Malhi qp_grp->grp_id); 76e3cf00d0SUpinder Malhi return -EFAULT; 77e3cf00d0SUpinder Malhi } 78e3cf00d0SUpinder Malhi 79e3cf00d0SUpinder Malhi bar = usnic_vnic_get_bar(qp_grp->vf->vnic, 0); 80e3cf00d0SUpinder Malhi if (!bar) { 81e3cf00d0SUpinder Malhi usnic_err("Failed to get bar0 of qp_grp %d vf %s", 82e3cf00d0SUpinder Malhi qp_grp->grp_id, pci_name(pdev)); 83e3cf00d0SUpinder Malhi return -EFAULT; 84e3cf00d0SUpinder Malhi } 85e3cf00d0SUpinder Malhi 86e3cf00d0SUpinder Malhi resp.vfid = usnic_vnic_get_index(qp_grp->vf->vnic); 87e3cf00d0SUpinder Malhi resp.bar_bus_addr = bar->bus_addr; 88e3cf00d0SUpinder Malhi resp.bar_len = bar->len; 89e3cf00d0SUpinder Malhi 90e3cf00d0SUpinder Malhi chunk = usnic_ib_qp_grp_get_chunk(qp_grp, USNIC_VNIC_RES_TYPE_RQ); 915f4c7e4eSJulia Lawall if (IS_ERR(chunk)) { 92e3cf00d0SUpinder Malhi usnic_err("Failed to get chunk %s for qp_grp %d with err %ld\n", 93e3cf00d0SUpinder Malhi usnic_vnic_res_type_to_str(USNIC_VNIC_RES_TYPE_RQ), 94e3cf00d0SUpinder Malhi qp_grp->grp_id, 95e3cf00d0SUpinder Malhi PTR_ERR(chunk)); 965f4c7e4eSJulia Lawall return PTR_ERR(chunk); 97e3cf00d0SUpinder Malhi } 98e3cf00d0SUpinder Malhi 99e3cf00d0SUpinder Malhi WARN_ON(chunk->type != USNIC_VNIC_RES_TYPE_RQ); 100e3cf00d0SUpinder Malhi resp.rq_cnt = chunk->cnt; 101e3cf00d0SUpinder Malhi for (i = 0; i < chunk->cnt; i++) 102e3cf00d0SUpinder Malhi resp.rq_idx[i] = chunk->res[i]->vnic_idx; 103e3cf00d0SUpinder Malhi 104e3cf00d0SUpinder Malhi chunk = usnic_ib_qp_grp_get_chunk(qp_grp, USNIC_VNIC_RES_TYPE_WQ); 1055f4c7e4eSJulia Lawall if (IS_ERR(chunk)) { 106e3cf00d0SUpinder Malhi usnic_err("Failed to get chunk %s for qp_grp %d with err %ld\n", 107e3cf00d0SUpinder Malhi usnic_vnic_res_type_to_str(USNIC_VNIC_RES_TYPE_WQ), 108e3cf00d0SUpinder Malhi qp_grp->grp_id, 109e3cf00d0SUpinder Malhi PTR_ERR(chunk)); 1105f4c7e4eSJulia Lawall return PTR_ERR(chunk); 111e3cf00d0SUpinder Malhi } 112e3cf00d0SUpinder Malhi 113e3cf00d0SUpinder Malhi WARN_ON(chunk->type != USNIC_VNIC_RES_TYPE_WQ); 114e3cf00d0SUpinder Malhi resp.wq_cnt = chunk->cnt; 115e3cf00d0SUpinder Malhi for (i = 0; i < chunk->cnt; i++) 116e3cf00d0SUpinder Malhi resp.wq_idx[i] = chunk->res[i]->vnic_idx; 117e3cf00d0SUpinder Malhi 118e3cf00d0SUpinder Malhi chunk = usnic_ib_qp_grp_get_chunk(qp_grp, USNIC_VNIC_RES_TYPE_CQ); 1195f4c7e4eSJulia Lawall if (IS_ERR(chunk)) { 120e3cf00d0SUpinder Malhi usnic_err("Failed to get chunk %s for qp_grp %d with err %ld\n", 121e3cf00d0SUpinder Malhi usnic_vnic_res_type_to_str(USNIC_VNIC_RES_TYPE_CQ), 122e3cf00d0SUpinder Malhi qp_grp->grp_id, 123e3cf00d0SUpinder Malhi PTR_ERR(chunk)); 1245f4c7e4eSJulia Lawall return PTR_ERR(chunk); 125e3cf00d0SUpinder Malhi } 126e3cf00d0SUpinder Malhi 127e3cf00d0SUpinder Malhi WARN_ON(chunk->type != USNIC_VNIC_RES_TYPE_CQ); 128e3cf00d0SUpinder Malhi resp.cq_cnt = chunk->cnt; 129e3cf00d0SUpinder Malhi for (i = 0; i < chunk->cnt; i++) 130e3cf00d0SUpinder Malhi resp.cq_idx[i] = chunk->res[i]->vnic_idx; 131e3cf00d0SUpinder Malhi 1328af94ac6SUpinder Malhi default_flow = list_first_entry(&qp_grp->flows_lst, 1338af94ac6SUpinder Malhi struct usnic_ib_qp_grp_flow, link); 1348af94ac6SUpinder Malhi resp.transport = default_flow->trans_type; 1358af94ac6SUpinder Malhi 136e3cf00d0SUpinder Malhi err = ib_copy_to_udata(udata, &resp, sizeof(resp)); 137e3cf00d0SUpinder Malhi if (err) { 138e3cf00d0SUpinder Malhi usnic_err("Failed to copy udata for %s", us_ibdev->ib_dev.name); 139e3cf00d0SUpinder Malhi return err; 140e3cf00d0SUpinder Malhi } 141e3cf00d0SUpinder Malhi 142e3cf00d0SUpinder Malhi return 0; 143e3cf00d0SUpinder Malhi } 144e3cf00d0SUpinder Malhi 145e3cf00d0SUpinder Malhi static struct usnic_ib_qp_grp* 146e3cf00d0SUpinder Malhi find_free_vf_and_create_qp_grp(struct usnic_ib_dev *us_ibdev, 147e3cf00d0SUpinder Malhi struct usnic_ib_pd *pd, 1488af94ac6SUpinder Malhi struct usnic_transport_spec *trans_spec, 149e3cf00d0SUpinder Malhi struct usnic_vnic_res_spec *res_spec) 150e3cf00d0SUpinder Malhi { 151e3cf00d0SUpinder Malhi struct usnic_ib_vf *vf; 152e3cf00d0SUpinder Malhi struct usnic_vnic *vnic; 153e3cf00d0SUpinder Malhi struct usnic_ib_qp_grp *qp_grp; 154e3cf00d0SUpinder Malhi struct device *dev, **dev_list; 155313e16d5SLeon Romanovsky int i; 156e3cf00d0SUpinder Malhi 157e3cf00d0SUpinder Malhi BUG_ON(!mutex_is_locked(&us_ibdev->usdev_lock)); 158e3cf00d0SUpinder Malhi 159e3cf00d0SUpinder Malhi if (list_empty(&us_ibdev->vf_dev_list)) { 160e3cf00d0SUpinder Malhi usnic_info("No vfs to allocate\n"); 161e3cf00d0SUpinder Malhi return NULL; 162e3cf00d0SUpinder Malhi } 163e3cf00d0SUpinder Malhi 164e3cf00d0SUpinder Malhi if (usnic_ib_share_vf) { 165e3cf00d0SUpinder Malhi /* Try to find resouces on a used vf which is in pd */ 166e3cf00d0SUpinder Malhi dev_list = usnic_uiom_get_dev_list(pd->umem_pd); 167d518a44dSDan Carpenter if (IS_ERR(dev_list)) 168d518a44dSDan Carpenter return ERR_CAST(dev_list); 169e3cf00d0SUpinder Malhi for (i = 0; dev_list[i]; i++) { 170e3cf00d0SUpinder Malhi dev = dev_list[i]; 171e3cf00d0SUpinder Malhi vf = pci_get_drvdata(to_pci_dev(dev)); 172e3cf00d0SUpinder Malhi spin_lock(&vf->lock); 173e3cf00d0SUpinder Malhi vnic = vf->vnic; 174e3cf00d0SUpinder Malhi if (!usnic_vnic_check_room(vnic, res_spec)) { 175e3cf00d0SUpinder Malhi usnic_dbg("Found used vnic %s from %s\n", 176e3cf00d0SUpinder Malhi us_ibdev->ib_dev.name, 177e3cf00d0SUpinder Malhi pci_name(usnic_vnic_get_pdev( 178e3cf00d0SUpinder Malhi vnic))); 179313e16d5SLeon Romanovsky qp_grp = usnic_ib_qp_grp_create(us_ibdev->ufdev, 180313e16d5SLeon Romanovsky vf, pd, 181313e16d5SLeon Romanovsky res_spec, 182313e16d5SLeon Romanovsky trans_spec); 183313e16d5SLeon Romanovsky 184313e16d5SLeon Romanovsky spin_unlock(&vf->lock); 185313e16d5SLeon Romanovsky goto qp_grp_check; 186e3cf00d0SUpinder Malhi } 187e3cf00d0SUpinder Malhi spin_unlock(&vf->lock); 188e3cf00d0SUpinder Malhi 189e3cf00d0SUpinder Malhi } 190e3cf00d0SUpinder Malhi usnic_uiom_free_dev_list(dev_list); 191e3cf00d0SUpinder Malhi } 192e3cf00d0SUpinder Malhi 193e3cf00d0SUpinder Malhi /* Try to find resources on an unused vf */ 194e3cf00d0SUpinder Malhi list_for_each_entry(vf, &us_ibdev->vf_dev_list, link) { 195e3cf00d0SUpinder Malhi spin_lock(&vf->lock); 196e3cf00d0SUpinder Malhi vnic = vf->vnic; 197e3cf00d0SUpinder Malhi if (vf->qp_grp_ref_cnt == 0 && 198e3cf00d0SUpinder Malhi usnic_vnic_check_room(vnic, res_spec) == 0) { 199313e16d5SLeon Romanovsky qp_grp = usnic_ib_qp_grp_create(us_ibdev->ufdev, vf, 200313e16d5SLeon Romanovsky pd, res_spec, 2018af94ac6SUpinder Malhi trans_spec); 202313e16d5SLeon Romanovsky 203e3cf00d0SUpinder Malhi spin_unlock(&vf->lock); 204313e16d5SLeon Romanovsky goto qp_grp_check; 205313e16d5SLeon Romanovsky } 206313e16d5SLeon Romanovsky spin_unlock(&vf->lock); 207313e16d5SLeon Romanovsky } 208313e16d5SLeon Romanovsky 209313e16d5SLeon Romanovsky usnic_info("No free qp grp found on %s\n", us_ibdev->ib_dev.name); 210313e16d5SLeon Romanovsky return ERR_PTR(-ENOMEM); 211313e16d5SLeon Romanovsky 212313e16d5SLeon Romanovsky qp_grp_check: 213e3cf00d0SUpinder Malhi if (IS_ERR_OR_NULL(qp_grp)) { 214e3cf00d0SUpinder Malhi usnic_err("Failed to allocate qp_grp\n"); 215e3cf00d0SUpinder Malhi return ERR_PTR(qp_grp ? PTR_ERR(qp_grp) : -ENOMEM); 216e3cf00d0SUpinder Malhi } 217e3cf00d0SUpinder Malhi return qp_grp; 218e3cf00d0SUpinder Malhi } 219e3cf00d0SUpinder Malhi 220e3cf00d0SUpinder Malhi static void qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp) 221e3cf00d0SUpinder Malhi { 222e3cf00d0SUpinder Malhi struct usnic_ib_vf *vf = qp_grp->vf; 223e3cf00d0SUpinder Malhi 224e3cf00d0SUpinder Malhi WARN_ON(qp_grp->state != IB_QPS_RESET); 225e3cf00d0SUpinder Malhi 226e3cf00d0SUpinder Malhi spin_lock(&vf->lock); 227e3cf00d0SUpinder Malhi usnic_ib_qp_grp_destroy(qp_grp); 228e3cf00d0SUpinder Malhi spin_unlock(&vf->lock); 229e3cf00d0SUpinder Malhi } 230e3cf00d0SUpinder Malhi 231c7845bcaSUpinder Malhi static int create_qp_validate_user_data(struct usnic_ib_create_qp_cmd cmd) 232c7845bcaSUpinder Malhi { 233c7845bcaSUpinder Malhi if (cmd.spec.trans_type <= USNIC_TRANSPORT_UNKNOWN || 234c7845bcaSUpinder Malhi cmd.spec.trans_type >= USNIC_TRANSPORT_MAX) 235c7845bcaSUpinder Malhi return -EINVAL; 236c7845bcaSUpinder Malhi 237c7845bcaSUpinder Malhi return 0; 238c7845bcaSUpinder Malhi } 239c7845bcaSUpinder Malhi 240e3cf00d0SUpinder Malhi /* Start of ib callback functions */ 241e3cf00d0SUpinder Malhi 242e3cf00d0SUpinder Malhi enum rdma_link_layer usnic_ib_port_link_layer(struct ib_device *device, 243e3cf00d0SUpinder Malhi u8 port_num) 244e3cf00d0SUpinder Malhi { 245e3cf00d0SUpinder Malhi return IB_LINK_LAYER_ETHERNET; 246e3cf00d0SUpinder Malhi } 247e3cf00d0SUpinder Malhi 248e3cf00d0SUpinder Malhi int usnic_ib_query_device(struct ib_device *ibdev, 2492528e33eSMatan Barak struct ib_device_attr *props, 2502528e33eSMatan Barak struct ib_udata *uhw) 251e3cf00d0SUpinder Malhi { 252e3cf00d0SUpinder Malhi struct usnic_ib_dev *us_ibdev = to_usdev(ibdev); 253e3cf00d0SUpinder Malhi union ib_gid gid; 254e3cf00d0SUpinder Malhi struct ethtool_drvinfo info; 255e3cf00d0SUpinder Malhi int qp_per_vf; 256e3cf00d0SUpinder Malhi 257e3cf00d0SUpinder Malhi usnic_dbg("\n"); 2582528e33eSMatan Barak if (uhw->inlen || uhw->outlen) 2592528e33eSMatan Barak return -EINVAL; 2602528e33eSMatan Barak 261e3cf00d0SUpinder Malhi mutex_lock(&us_ibdev->usdev_lock); 262e3cf00d0SUpinder Malhi us_ibdev->netdev->ethtool_ops->get_drvinfo(us_ibdev->netdev, &info); 263e3cf00d0SUpinder Malhi memset(props, 0, sizeof(*props)); 264c7845bcaSUpinder Malhi usnic_mac_ip_to_gid(us_ibdev->ufdev->mac, us_ibdev->ufdev->inaddr, 265c7845bcaSUpinder Malhi &gid.raw[0]); 266e3cf00d0SUpinder Malhi memcpy(&props->sys_image_guid, &gid.global.interface_id, 267e3cf00d0SUpinder Malhi sizeof(gid.global.interface_id)); 268e3cf00d0SUpinder Malhi usnic_ib_fw_string_to_u64(&info.fw_version[0], &props->fw_ver); 269e3cf00d0SUpinder Malhi props->max_mr_size = USNIC_UIOM_MAX_MR_SIZE; 270e3cf00d0SUpinder Malhi props->page_size_cap = USNIC_UIOM_PAGE_SIZE; 271e3cf00d0SUpinder Malhi props->vendor_id = PCI_VENDOR_ID_CISCO; 272e3cf00d0SUpinder Malhi props->vendor_part_id = PCI_DEVICE_ID_CISCO_VIC_USPACE_NIC; 273e3cf00d0SUpinder Malhi props->hw_ver = us_ibdev->pdev->subsystem_device; 274e3cf00d0SUpinder Malhi qp_per_vf = max(us_ibdev->vf_res_cnt[USNIC_VNIC_RES_TYPE_WQ], 275e3cf00d0SUpinder Malhi us_ibdev->vf_res_cnt[USNIC_VNIC_RES_TYPE_RQ]); 276e3cf00d0SUpinder Malhi props->max_qp = qp_per_vf * 2772c935bc5SPeter Zijlstra kref_read(&us_ibdev->vf_cnt); 278e3cf00d0SUpinder Malhi props->device_cap_flags = IB_DEVICE_PORT_ACTIVE_EVENT | 279e3cf00d0SUpinder Malhi IB_DEVICE_SYS_IMAGE_GUID | IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; 280e3cf00d0SUpinder Malhi props->max_cq = us_ibdev->vf_res_cnt[USNIC_VNIC_RES_TYPE_CQ] * 2812c935bc5SPeter Zijlstra kref_read(&us_ibdev->vf_cnt); 282e3cf00d0SUpinder Malhi props->max_pd = USNIC_UIOM_MAX_PD_CNT; 283e3cf00d0SUpinder Malhi props->max_mr = USNIC_UIOM_MAX_MR_CNT; 284e3cf00d0SUpinder Malhi props->local_ca_ack_delay = 0; 285e3cf00d0SUpinder Malhi props->max_pkeys = 0; 286e3cf00d0SUpinder Malhi props->atomic_cap = IB_ATOMIC_NONE; 287e3cf00d0SUpinder Malhi props->masked_atomic_cap = props->atomic_cap; 288e3cf00d0SUpinder Malhi props->max_qp_rd_atom = 0; 289e3cf00d0SUpinder Malhi props->max_qp_init_rd_atom = 0; 290e3cf00d0SUpinder Malhi props->max_res_rd_atom = 0; 291e3cf00d0SUpinder Malhi props->max_srq = 0; 292e3cf00d0SUpinder Malhi props->max_srq_wr = 0; 293e3cf00d0SUpinder Malhi props->max_srq_sge = 0; 294e3cf00d0SUpinder Malhi props->max_fast_reg_page_list_len = 0; 295e3cf00d0SUpinder Malhi props->max_mcast_grp = 0; 296e3cf00d0SUpinder Malhi props->max_mcast_qp_attach = 0; 297e3cf00d0SUpinder Malhi props->max_total_mcast_qp_attach = 0; 298e3cf00d0SUpinder Malhi props->max_map_per_fmr = 0; 299e3cf00d0SUpinder Malhi /* Owned by Userspace 300e3cf00d0SUpinder Malhi * max_qp_wr, max_sge, max_sge_rd, max_cqe */ 301e3cf00d0SUpinder Malhi mutex_unlock(&us_ibdev->usdev_lock); 302e3cf00d0SUpinder Malhi 303e3cf00d0SUpinder Malhi return 0; 304e3cf00d0SUpinder Malhi } 305e3cf00d0SUpinder Malhi 306e3cf00d0SUpinder Malhi int usnic_ib_query_port(struct ib_device *ibdev, u8 port, 307e3cf00d0SUpinder Malhi struct ib_port_attr *props) 308e3cf00d0SUpinder Malhi { 309e3cf00d0SUpinder Malhi struct usnic_ib_dev *us_ibdev = to_usdev(ibdev); 310e3cf00d0SUpinder Malhi 311e3cf00d0SUpinder Malhi usnic_dbg("\n"); 312e3cf00d0SUpinder Malhi 313e3cf00d0SUpinder Malhi mutex_lock(&us_ibdev->usdev_lock); 3147be05753SSelvin Xavier if (ib_get_eth_speed(ibdev, port, &props->active_speed, 315d4186194SYuval Shaia &props->active_width)) { 316d4186194SYuval Shaia mutex_unlock(&us_ibdev->usdev_lock); 317d4186194SYuval Shaia return -EINVAL; 318d4186194SYuval Shaia } 319d4186194SYuval Shaia 320c4550c63SOr Gerlitz /* props being zeroed by the caller, avoid zeroing it here */ 321e3cf00d0SUpinder Malhi 322e3cf00d0SUpinder Malhi props->lid = 0; 323e3cf00d0SUpinder Malhi props->lmc = 1; 324e3cf00d0SUpinder Malhi props->sm_lid = 0; 325e3cf00d0SUpinder Malhi props->sm_sl = 0; 326e3cf00d0SUpinder Malhi 327c7845bcaSUpinder Malhi if (!us_ibdev->ufdev->link_up) { 328e3cf00d0SUpinder Malhi props->state = IB_PORT_DOWN; 329e3cf00d0SUpinder Malhi props->phys_state = 3; 330c7845bcaSUpinder Malhi } else if (!us_ibdev->ufdev->inaddr) { 331c7845bcaSUpinder Malhi props->state = IB_PORT_INIT; 332c7845bcaSUpinder Malhi props->phys_state = 4; 333c7845bcaSUpinder Malhi } else { 334c7845bcaSUpinder Malhi props->state = IB_PORT_ACTIVE; 335c7845bcaSUpinder Malhi props->phys_state = 5; 336e3cf00d0SUpinder Malhi } 337e3cf00d0SUpinder Malhi 338e3cf00d0SUpinder Malhi props->port_cap_flags = 0; 339e3cf00d0SUpinder Malhi props->gid_tbl_len = 1; 340e3cf00d0SUpinder Malhi props->pkey_tbl_len = 1; 341e3cf00d0SUpinder Malhi props->bad_pkey_cntr = 0; 342e3cf00d0SUpinder Malhi props->qkey_viol_cntr = 0; 343e3cf00d0SUpinder Malhi props->max_mtu = IB_MTU_4096; 3448af94ac6SUpinder Malhi props->active_mtu = iboe_get_mtu(us_ibdev->ufdev->mtu); 345e3cf00d0SUpinder Malhi /* Userspace will adjust for hdrs */ 3468af94ac6SUpinder Malhi props->max_msg_sz = us_ibdev->ufdev->mtu; 347e3cf00d0SUpinder Malhi props->max_vl_num = 1; 348e3cf00d0SUpinder Malhi mutex_unlock(&us_ibdev->usdev_lock); 349e3cf00d0SUpinder Malhi 350e3cf00d0SUpinder Malhi return 0; 351e3cf00d0SUpinder Malhi } 352e3cf00d0SUpinder Malhi 353e3cf00d0SUpinder Malhi int usnic_ib_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr, 354e3cf00d0SUpinder Malhi int qp_attr_mask, 355e3cf00d0SUpinder Malhi struct ib_qp_init_attr *qp_init_attr) 356e3cf00d0SUpinder Malhi { 357e3cf00d0SUpinder Malhi struct usnic_ib_qp_grp *qp_grp; 358e3cf00d0SUpinder Malhi struct usnic_ib_vf *vf; 359e3cf00d0SUpinder Malhi int err; 360e3cf00d0SUpinder Malhi 361e3cf00d0SUpinder Malhi usnic_dbg("\n"); 362e3cf00d0SUpinder Malhi 363e3cf00d0SUpinder Malhi memset(qp_attr, 0, sizeof(*qp_attr)); 364e3cf00d0SUpinder Malhi memset(qp_init_attr, 0, sizeof(*qp_init_attr)); 365e3cf00d0SUpinder Malhi 366e3cf00d0SUpinder Malhi qp_grp = to_uqp_grp(qp); 367e3cf00d0SUpinder Malhi vf = qp_grp->vf; 368e3cf00d0SUpinder Malhi mutex_lock(&vf->pf->usdev_lock); 369e3cf00d0SUpinder Malhi usnic_dbg("\n"); 370e3cf00d0SUpinder Malhi qp_attr->qp_state = qp_grp->state; 371e3cf00d0SUpinder Malhi qp_attr->cur_qp_state = qp_grp->state; 372e3cf00d0SUpinder Malhi 373e3cf00d0SUpinder Malhi switch (qp_grp->ibqp.qp_type) { 374e3cf00d0SUpinder Malhi case IB_QPT_UD: 375e3cf00d0SUpinder Malhi qp_attr->qkey = 0; 376e3cf00d0SUpinder Malhi break; 377e3cf00d0SUpinder Malhi default: 378e3cf00d0SUpinder Malhi usnic_err("Unexpected qp_type %d\n", qp_grp->ibqp.qp_type); 379e3cf00d0SUpinder Malhi err = -EINVAL; 380e3cf00d0SUpinder Malhi goto err_out; 381e3cf00d0SUpinder Malhi } 382e3cf00d0SUpinder Malhi 383e3cf00d0SUpinder Malhi mutex_unlock(&vf->pf->usdev_lock); 384e3cf00d0SUpinder Malhi return 0; 385e3cf00d0SUpinder Malhi 386e3cf00d0SUpinder Malhi err_out: 387e3cf00d0SUpinder Malhi mutex_unlock(&vf->pf->usdev_lock); 388e3cf00d0SUpinder Malhi return err; 389e3cf00d0SUpinder Malhi } 390e3cf00d0SUpinder Malhi 391e3cf00d0SUpinder Malhi int usnic_ib_query_gid(struct ib_device *ibdev, u8 port, int index, 392e3cf00d0SUpinder Malhi union ib_gid *gid) 393e3cf00d0SUpinder Malhi { 394e3cf00d0SUpinder Malhi 395e3cf00d0SUpinder Malhi struct usnic_ib_dev *us_ibdev = to_usdev(ibdev); 396e3cf00d0SUpinder Malhi usnic_dbg("\n"); 397e3cf00d0SUpinder Malhi 398e3cf00d0SUpinder Malhi if (index > 1) 399e3cf00d0SUpinder Malhi return -EINVAL; 400e3cf00d0SUpinder Malhi 401e3cf00d0SUpinder Malhi mutex_lock(&us_ibdev->usdev_lock); 402e3cf00d0SUpinder Malhi memset(&(gid->raw[0]), 0, sizeof(gid->raw)); 403c7845bcaSUpinder Malhi usnic_mac_ip_to_gid(us_ibdev->ufdev->mac, us_ibdev->ufdev->inaddr, 404c7845bcaSUpinder Malhi &gid->raw[0]); 405e3cf00d0SUpinder Malhi mutex_unlock(&us_ibdev->usdev_lock); 406e3cf00d0SUpinder Malhi 407e3cf00d0SUpinder Malhi return 0; 408e3cf00d0SUpinder Malhi } 409e3cf00d0SUpinder Malhi 41044b0b745SYuval Shaia struct net_device *usnic_get_netdev(struct ib_device *device, u8 port_num) 41144b0b745SYuval Shaia { 41244b0b745SYuval Shaia struct usnic_ib_dev *us_ibdev = to_usdev(device); 41344b0b745SYuval Shaia 41444b0b745SYuval Shaia if (us_ibdev->netdev) 41544b0b745SYuval Shaia dev_hold(us_ibdev->netdev); 41644b0b745SYuval Shaia 41744b0b745SYuval Shaia return us_ibdev->netdev; 41844b0b745SYuval Shaia } 41944b0b745SYuval Shaia 420e3cf00d0SUpinder Malhi int usnic_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, 421e3cf00d0SUpinder Malhi u16 *pkey) 422e3cf00d0SUpinder Malhi { 423e3cf00d0SUpinder Malhi if (index > 1) 424e3cf00d0SUpinder Malhi return -EINVAL; 425e3cf00d0SUpinder Malhi 426e3cf00d0SUpinder Malhi *pkey = 0xffff; 427e3cf00d0SUpinder Malhi return 0; 428e3cf00d0SUpinder Malhi } 429e3cf00d0SUpinder Malhi 430e3cf00d0SUpinder Malhi struct ib_pd *usnic_ib_alloc_pd(struct ib_device *ibdev, 431e3cf00d0SUpinder Malhi struct ib_ucontext *context, 432e3cf00d0SUpinder Malhi struct ib_udata *udata) 433e3cf00d0SUpinder Malhi { 434e3cf00d0SUpinder Malhi struct usnic_ib_pd *pd; 435e3cf00d0SUpinder Malhi void *umem_pd; 436e3cf00d0SUpinder Malhi 437e3cf00d0SUpinder Malhi usnic_dbg("\n"); 438e3cf00d0SUpinder Malhi 439e3cf00d0SUpinder Malhi pd = kzalloc(sizeof(*pd), GFP_KERNEL); 440e3cf00d0SUpinder Malhi if (!pd) 441e3cf00d0SUpinder Malhi return ERR_PTR(-ENOMEM); 442e3cf00d0SUpinder Malhi 443e3cf00d0SUpinder Malhi umem_pd = pd->umem_pd = usnic_uiom_alloc_pd(); 444e3cf00d0SUpinder Malhi if (IS_ERR_OR_NULL(umem_pd)) { 445e3cf00d0SUpinder Malhi kfree(pd); 446e3cf00d0SUpinder Malhi return ERR_PTR(umem_pd ? PTR_ERR(umem_pd) : -ENOMEM); 447e3cf00d0SUpinder Malhi } 448e3cf00d0SUpinder Malhi 449e3cf00d0SUpinder Malhi usnic_info("domain 0x%p allocated for context 0x%p and device %s\n", 450e3cf00d0SUpinder Malhi pd, context, ibdev->name); 451e3cf00d0SUpinder Malhi return &pd->ibpd; 452e3cf00d0SUpinder Malhi } 453e3cf00d0SUpinder Malhi 454e3cf00d0SUpinder Malhi int usnic_ib_dealloc_pd(struct ib_pd *pd) 455e3cf00d0SUpinder Malhi { 456e3cf00d0SUpinder Malhi usnic_info("freeing domain 0x%p\n", pd); 457e3cf00d0SUpinder Malhi 458e3cf00d0SUpinder Malhi usnic_uiom_dealloc_pd((to_upd(pd))->umem_pd); 459e3cf00d0SUpinder Malhi kfree(pd); 460e3cf00d0SUpinder Malhi return 0; 461e3cf00d0SUpinder Malhi } 462e3cf00d0SUpinder Malhi 463e3cf00d0SUpinder Malhi struct ib_qp *usnic_ib_create_qp(struct ib_pd *pd, 464e3cf00d0SUpinder Malhi struct ib_qp_init_attr *init_attr, 465e3cf00d0SUpinder Malhi struct ib_udata *udata) 466e3cf00d0SUpinder Malhi { 467e3cf00d0SUpinder Malhi int err; 468e3cf00d0SUpinder Malhi struct usnic_ib_dev *us_ibdev; 469e3cf00d0SUpinder Malhi struct usnic_ib_qp_grp *qp_grp; 470e3cf00d0SUpinder Malhi struct usnic_ib_ucontext *ucontext; 471e3cf00d0SUpinder Malhi int cq_cnt; 472e3cf00d0SUpinder Malhi struct usnic_vnic_res_spec res_spec; 473c7845bcaSUpinder Malhi struct usnic_ib_create_qp_cmd cmd; 4748af94ac6SUpinder Malhi struct usnic_transport_spec trans_spec; 475e3cf00d0SUpinder Malhi 476e3cf00d0SUpinder Malhi usnic_dbg("\n"); 477e3cf00d0SUpinder Malhi 478e3cf00d0SUpinder Malhi ucontext = to_uucontext(pd->uobject->context); 479e3cf00d0SUpinder Malhi us_ibdev = to_usdev(pd->device); 480e3cf00d0SUpinder Malhi 48160093dc0SOr Gerlitz if (init_attr->create_flags) 48260093dc0SOr Gerlitz return ERR_PTR(-EINVAL); 48360093dc0SOr Gerlitz 484c7845bcaSUpinder Malhi err = ib_copy_from_udata(&cmd, udata, sizeof(cmd)); 485c7845bcaSUpinder Malhi if (err) { 486c7845bcaSUpinder Malhi usnic_err("%s: cannot copy udata for create_qp\n", 487c7845bcaSUpinder Malhi us_ibdev->ib_dev.name); 488c7845bcaSUpinder Malhi return ERR_PTR(-EINVAL); 489c7845bcaSUpinder Malhi } 490c7845bcaSUpinder Malhi 491c7845bcaSUpinder Malhi err = create_qp_validate_user_data(cmd); 492c7845bcaSUpinder Malhi if (err) { 493c7845bcaSUpinder Malhi usnic_err("%s: Failed to validate user data\n", 494c7845bcaSUpinder Malhi us_ibdev->ib_dev.name); 495c7845bcaSUpinder Malhi return ERR_PTR(-EINVAL); 496c7845bcaSUpinder Malhi } 497c7845bcaSUpinder Malhi 498e3cf00d0SUpinder Malhi if (init_attr->qp_type != IB_QPT_UD) { 499e3cf00d0SUpinder Malhi usnic_err("%s asked to make a non-UD QP: %d\n", 500e3cf00d0SUpinder Malhi us_ibdev->ib_dev.name, init_attr->qp_type); 501e3cf00d0SUpinder Malhi return ERR_PTR(-EINVAL); 502e3cf00d0SUpinder Malhi } 503e3cf00d0SUpinder Malhi 504c7845bcaSUpinder Malhi trans_spec = cmd.spec; 505e3cf00d0SUpinder Malhi mutex_lock(&us_ibdev->usdev_lock); 5068af94ac6SUpinder Malhi cq_cnt = (init_attr->send_cq == init_attr->recv_cq) ? 1 : 2; 5078af94ac6SUpinder Malhi res_spec = min_transport_spec[trans_spec.trans_type]; 508e3cf00d0SUpinder Malhi usnic_vnic_res_spec_update(&res_spec, USNIC_VNIC_RES_TYPE_CQ, cq_cnt); 509e3cf00d0SUpinder Malhi qp_grp = find_free_vf_and_create_qp_grp(us_ibdev, to_upd(pd), 5108af94ac6SUpinder Malhi &trans_spec, 511e3cf00d0SUpinder Malhi &res_spec); 512e3cf00d0SUpinder Malhi if (IS_ERR_OR_NULL(qp_grp)) { 5136a54d9f9SUpinder Malhi err = qp_grp ? PTR_ERR(qp_grp) : -ENOMEM; 514e3cf00d0SUpinder Malhi goto out_release_mutex; 515e3cf00d0SUpinder Malhi } 516e3cf00d0SUpinder Malhi 517e3cf00d0SUpinder Malhi err = usnic_ib_fill_create_qp_resp(qp_grp, udata); 518e3cf00d0SUpinder Malhi if (err) { 519e3cf00d0SUpinder Malhi err = -EBUSY; 520e3cf00d0SUpinder Malhi goto out_release_qp_grp; 521e3cf00d0SUpinder Malhi } 522e3cf00d0SUpinder Malhi 523e3cf00d0SUpinder Malhi qp_grp->ctx = ucontext; 524e3cf00d0SUpinder Malhi list_add_tail(&qp_grp->link, &ucontext->qp_grp_list); 525e3cf00d0SUpinder Malhi usnic_ib_log_vf(qp_grp->vf); 526e3cf00d0SUpinder Malhi mutex_unlock(&us_ibdev->usdev_lock); 527e3cf00d0SUpinder Malhi return &qp_grp->ibqp; 528e3cf00d0SUpinder Malhi 529e3cf00d0SUpinder Malhi out_release_qp_grp: 530e3cf00d0SUpinder Malhi qp_grp_destroy(qp_grp); 531e3cf00d0SUpinder Malhi out_release_mutex: 532e3cf00d0SUpinder Malhi mutex_unlock(&us_ibdev->usdev_lock); 533e3cf00d0SUpinder Malhi return ERR_PTR(err); 534e3cf00d0SUpinder Malhi } 535e3cf00d0SUpinder Malhi 536e3cf00d0SUpinder Malhi int usnic_ib_destroy_qp(struct ib_qp *qp) 537e3cf00d0SUpinder Malhi { 538e3cf00d0SUpinder Malhi struct usnic_ib_qp_grp *qp_grp; 539e3cf00d0SUpinder Malhi struct usnic_ib_vf *vf; 540e3cf00d0SUpinder Malhi 541e3cf00d0SUpinder Malhi usnic_dbg("\n"); 542e3cf00d0SUpinder Malhi 543e3cf00d0SUpinder Malhi qp_grp = to_uqp_grp(qp); 544e3cf00d0SUpinder Malhi vf = qp_grp->vf; 545e3cf00d0SUpinder Malhi mutex_lock(&vf->pf->usdev_lock); 546e3cf00d0SUpinder Malhi if (usnic_ib_qp_grp_modify(qp_grp, IB_QPS_RESET, NULL)) { 547e3cf00d0SUpinder Malhi usnic_err("Failed to move qp grp %u to reset\n", 548e3cf00d0SUpinder Malhi qp_grp->grp_id); 549e3cf00d0SUpinder Malhi } 550e3cf00d0SUpinder Malhi 551e3cf00d0SUpinder Malhi list_del(&qp_grp->link); 552e3cf00d0SUpinder Malhi qp_grp_destroy(qp_grp); 553e3cf00d0SUpinder Malhi mutex_unlock(&vf->pf->usdev_lock); 554e3cf00d0SUpinder Malhi 555e3cf00d0SUpinder Malhi return 0; 556e3cf00d0SUpinder Malhi } 557e3cf00d0SUpinder Malhi 558e3cf00d0SUpinder Malhi int usnic_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 559e3cf00d0SUpinder Malhi int attr_mask, struct ib_udata *udata) 560e3cf00d0SUpinder Malhi { 561e3cf00d0SUpinder Malhi struct usnic_ib_qp_grp *qp_grp; 562e3cf00d0SUpinder Malhi int status; 563e3cf00d0SUpinder Malhi usnic_dbg("\n"); 564e3cf00d0SUpinder Malhi 565e3cf00d0SUpinder Malhi qp_grp = to_uqp_grp(ibqp); 566e3cf00d0SUpinder Malhi 567e3cf00d0SUpinder Malhi mutex_lock(&qp_grp->vf->pf->usdev_lock); 56889e5323cSNelson Escobar if ((attr_mask & IB_QP_PORT) && attr->port_num != 1) { 56989e5323cSNelson Escobar /* usnic devices only have one port */ 57089e5323cSNelson Escobar status = -EINVAL; 57189e5323cSNelson Escobar goto out_unlock; 57289e5323cSNelson Escobar } 57389e5323cSNelson Escobar if (attr_mask & IB_QP_STATE) { 57489e5323cSNelson Escobar status = usnic_ib_qp_grp_modify(qp_grp, attr->qp_state, NULL); 575e3cf00d0SUpinder Malhi } else { 57689e5323cSNelson Escobar usnic_err("Unhandled request, attr_mask=0x%x\n", attr_mask); 577e3cf00d0SUpinder Malhi status = -EINVAL; 578e3cf00d0SUpinder Malhi } 579e3cf00d0SUpinder Malhi 58089e5323cSNelson Escobar out_unlock: 581e3cf00d0SUpinder Malhi mutex_unlock(&qp_grp->vf->pf->usdev_lock); 582e3cf00d0SUpinder Malhi return status; 583e3cf00d0SUpinder Malhi } 584e3cf00d0SUpinder Malhi 585bcf4c1eaSMatan Barak struct ib_cq *usnic_ib_create_cq(struct ib_device *ibdev, 586bcf4c1eaSMatan Barak const struct ib_cq_init_attr *attr, 587bcf4c1eaSMatan Barak struct ib_ucontext *context, 588e3cf00d0SUpinder Malhi struct ib_udata *udata) 589e3cf00d0SUpinder Malhi { 590e3cf00d0SUpinder Malhi struct ib_cq *cq; 591e3cf00d0SUpinder Malhi 592e3cf00d0SUpinder Malhi usnic_dbg("\n"); 593bcf4c1eaSMatan Barak if (attr->flags) 594bcf4c1eaSMatan Barak return ERR_PTR(-EINVAL); 595bcf4c1eaSMatan Barak 596e3cf00d0SUpinder Malhi cq = kzalloc(sizeof(*cq), GFP_KERNEL); 597e3cf00d0SUpinder Malhi if (!cq) 598e3cf00d0SUpinder Malhi return ERR_PTR(-EBUSY); 599e3cf00d0SUpinder Malhi 600e3cf00d0SUpinder Malhi return cq; 601e3cf00d0SUpinder Malhi } 602e3cf00d0SUpinder Malhi 603e3cf00d0SUpinder Malhi int usnic_ib_destroy_cq(struct ib_cq *cq) 604e3cf00d0SUpinder Malhi { 605e3cf00d0SUpinder Malhi usnic_dbg("\n"); 606e3cf00d0SUpinder Malhi kfree(cq); 607e3cf00d0SUpinder Malhi return 0; 608e3cf00d0SUpinder Malhi } 609e3cf00d0SUpinder Malhi 610e3cf00d0SUpinder Malhi struct ib_mr *usnic_ib_reg_mr(struct ib_pd *pd, u64 start, u64 length, 611e3cf00d0SUpinder Malhi u64 virt_addr, int access_flags, 612e3cf00d0SUpinder Malhi struct ib_udata *udata) 613e3cf00d0SUpinder Malhi { 614e3cf00d0SUpinder Malhi struct usnic_ib_mr *mr; 615e3cf00d0SUpinder Malhi int err; 616e3cf00d0SUpinder Malhi 617e3cf00d0SUpinder Malhi usnic_dbg("start 0x%llx va 0x%llx length 0x%llx\n", start, 618e3cf00d0SUpinder Malhi virt_addr, length); 619e3cf00d0SUpinder Malhi 620e3cf00d0SUpinder Malhi mr = kzalloc(sizeof(*mr), GFP_KERNEL); 62159f65f49SJulia Lawall if (!mr) 62259f65f49SJulia Lawall return ERR_PTR(-ENOMEM); 623e3cf00d0SUpinder Malhi 624e3cf00d0SUpinder Malhi mr->umem = usnic_uiom_reg_get(to_upd(pd)->umem_pd, start, length, 625e3cf00d0SUpinder Malhi access_flags, 0); 626e3cf00d0SUpinder Malhi if (IS_ERR_OR_NULL(mr->umem)) { 6276a54d9f9SUpinder Malhi err = mr->umem ? PTR_ERR(mr->umem) : -EFAULT; 628e3cf00d0SUpinder Malhi goto err_free; 629e3cf00d0SUpinder Malhi } 630e3cf00d0SUpinder Malhi 631e3cf00d0SUpinder Malhi mr->ibmr.lkey = mr->ibmr.rkey = 0; 632e3cf00d0SUpinder Malhi return &mr->ibmr; 633e3cf00d0SUpinder Malhi 634e3cf00d0SUpinder Malhi err_free: 635e3cf00d0SUpinder Malhi kfree(mr); 636e3cf00d0SUpinder Malhi return ERR_PTR(err); 637e3cf00d0SUpinder Malhi } 638e3cf00d0SUpinder Malhi 639e3cf00d0SUpinder Malhi int usnic_ib_dereg_mr(struct ib_mr *ibmr) 640e3cf00d0SUpinder Malhi { 641e3cf00d0SUpinder Malhi struct usnic_ib_mr *mr = to_umr(ibmr); 642e3cf00d0SUpinder Malhi 643e3cf00d0SUpinder Malhi usnic_dbg("va 0x%lx length 0x%zx\n", mr->umem->va, mr->umem->length); 644e3cf00d0SUpinder Malhi 645e3cf00d0SUpinder Malhi usnic_uiom_reg_release(mr->umem, ibmr->pd->uobject->context->closing); 646e3cf00d0SUpinder Malhi kfree(mr); 647e3cf00d0SUpinder Malhi return 0; 648e3cf00d0SUpinder Malhi } 649e3cf00d0SUpinder Malhi 650e3cf00d0SUpinder Malhi struct ib_ucontext *usnic_ib_alloc_ucontext(struct ib_device *ibdev, 651e3cf00d0SUpinder Malhi struct ib_udata *udata) 652e3cf00d0SUpinder Malhi { 653e3cf00d0SUpinder Malhi struct usnic_ib_ucontext *context; 654e3cf00d0SUpinder Malhi struct usnic_ib_dev *us_ibdev = to_usdev(ibdev); 655e3cf00d0SUpinder Malhi usnic_dbg("\n"); 656e3cf00d0SUpinder Malhi 657e3cf00d0SUpinder Malhi context = kmalloc(sizeof(*context), GFP_KERNEL); 658e3cf00d0SUpinder Malhi if (!context) 659e3cf00d0SUpinder Malhi return ERR_PTR(-ENOMEM); 660e3cf00d0SUpinder Malhi 661e3cf00d0SUpinder Malhi INIT_LIST_HEAD(&context->qp_grp_list); 662e3cf00d0SUpinder Malhi mutex_lock(&us_ibdev->usdev_lock); 663e3cf00d0SUpinder Malhi list_add_tail(&context->link, &us_ibdev->ctx_list); 664e3cf00d0SUpinder Malhi mutex_unlock(&us_ibdev->usdev_lock); 665e3cf00d0SUpinder Malhi 666e3cf00d0SUpinder Malhi return &context->ibucontext; 667e3cf00d0SUpinder Malhi } 668e3cf00d0SUpinder Malhi 669e3cf00d0SUpinder Malhi int usnic_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) 670e3cf00d0SUpinder Malhi { 671e3cf00d0SUpinder Malhi struct usnic_ib_ucontext *context = to_uucontext(ibcontext); 672e3cf00d0SUpinder Malhi struct usnic_ib_dev *us_ibdev = to_usdev(ibcontext->device); 673e3cf00d0SUpinder Malhi usnic_dbg("\n"); 674e3cf00d0SUpinder Malhi 675e3cf00d0SUpinder Malhi mutex_lock(&us_ibdev->usdev_lock); 676e3cf00d0SUpinder Malhi BUG_ON(!list_empty(&context->qp_grp_list)); 677e3cf00d0SUpinder Malhi list_del(&context->link); 678e3cf00d0SUpinder Malhi mutex_unlock(&us_ibdev->usdev_lock); 679e3cf00d0SUpinder Malhi kfree(context); 680e3cf00d0SUpinder Malhi return 0; 681e3cf00d0SUpinder Malhi } 682e3cf00d0SUpinder Malhi 683e3cf00d0SUpinder Malhi int usnic_ib_mmap(struct ib_ucontext *context, 684e3cf00d0SUpinder Malhi struct vm_area_struct *vma) 685e3cf00d0SUpinder Malhi { 686e3cf00d0SUpinder Malhi struct usnic_ib_ucontext *uctx = to_ucontext(context); 687e3cf00d0SUpinder Malhi struct usnic_ib_dev *us_ibdev; 688e3cf00d0SUpinder Malhi struct usnic_ib_qp_grp *qp_grp; 689e3cf00d0SUpinder Malhi struct usnic_ib_vf *vf; 690e3cf00d0SUpinder Malhi struct vnic_dev_bar *bar; 691e3cf00d0SUpinder Malhi dma_addr_t bus_addr; 692e3cf00d0SUpinder Malhi unsigned int len; 693e3cf00d0SUpinder Malhi unsigned int vfid; 694e3cf00d0SUpinder Malhi 695e3cf00d0SUpinder Malhi usnic_dbg("\n"); 696e3cf00d0SUpinder Malhi 697e3cf00d0SUpinder Malhi us_ibdev = to_usdev(context->device); 698e3cf00d0SUpinder Malhi vma->vm_flags |= VM_IO; 699e3cf00d0SUpinder Malhi vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 700e3cf00d0SUpinder Malhi vfid = vma->vm_pgoff; 701e3cf00d0SUpinder Malhi usnic_dbg("Page Offset %lu PAGE_SHIFT %u VFID %u\n", 702e3cf00d0SUpinder Malhi vma->vm_pgoff, PAGE_SHIFT, vfid); 703e3cf00d0SUpinder Malhi 704e3cf00d0SUpinder Malhi mutex_lock(&us_ibdev->usdev_lock); 705e3cf00d0SUpinder Malhi list_for_each_entry(qp_grp, &uctx->qp_grp_list, link) { 706e3cf00d0SUpinder Malhi vf = qp_grp->vf; 707e3cf00d0SUpinder Malhi if (usnic_vnic_get_index(vf->vnic) == vfid) { 708e3cf00d0SUpinder Malhi bar = usnic_vnic_get_bar(vf->vnic, 0); 709e3cf00d0SUpinder Malhi if ((vma->vm_end - vma->vm_start) != bar->len) { 710e3cf00d0SUpinder Malhi usnic_err("Bar0 Len %lu - Request map %lu\n", 711e3cf00d0SUpinder Malhi bar->len, 712e3cf00d0SUpinder Malhi vma->vm_end - vma->vm_start); 713e3cf00d0SUpinder Malhi mutex_unlock(&us_ibdev->usdev_lock); 714e3cf00d0SUpinder Malhi return -EINVAL; 715e3cf00d0SUpinder Malhi } 716e3cf00d0SUpinder Malhi bus_addr = bar->bus_addr; 717e3cf00d0SUpinder Malhi len = bar->len; 718e3cf00d0SUpinder Malhi usnic_dbg("bus: %pa vaddr: %p size: %ld\n", 719e3cf00d0SUpinder Malhi &bus_addr, bar->vaddr, bar->len); 720e3cf00d0SUpinder Malhi mutex_unlock(&us_ibdev->usdev_lock); 721e3cf00d0SUpinder Malhi 722e3cf00d0SUpinder Malhi return remap_pfn_range(vma, 723e3cf00d0SUpinder Malhi vma->vm_start, 724e3cf00d0SUpinder Malhi bus_addr >> PAGE_SHIFT, 725e3cf00d0SUpinder Malhi len, vma->vm_page_prot); 726e3cf00d0SUpinder Malhi } 727e3cf00d0SUpinder Malhi } 728e3cf00d0SUpinder Malhi 729e3cf00d0SUpinder Malhi mutex_unlock(&us_ibdev->usdev_lock); 730e3cf00d0SUpinder Malhi usnic_err("No VF %u found\n", vfid); 731e3cf00d0SUpinder Malhi return -EINVAL; 732e3cf00d0SUpinder Malhi } 733e3cf00d0SUpinder Malhi 734e3cf00d0SUpinder Malhi /* In ib callbacks section - Start of stub funcs */ 735e3cf00d0SUpinder Malhi struct ib_ah *usnic_ib_create_ah(struct ib_pd *pd, 73690898850SDasaratharaman Chandramouli struct rdma_ah_attr *ah_attr, 737477864c8SMoni Shoua struct ib_udata *udata) 738477864c8SMoni Shoua 739e3cf00d0SUpinder Malhi { 740e3cf00d0SUpinder Malhi usnic_dbg("\n"); 741e3cf00d0SUpinder Malhi return ERR_PTR(-EPERM); 742e3cf00d0SUpinder Malhi } 743e3cf00d0SUpinder Malhi 744e3cf00d0SUpinder Malhi int usnic_ib_destroy_ah(struct ib_ah *ah) 745e3cf00d0SUpinder Malhi { 746e3cf00d0SUpinder Malhi usnic_dbg("\n"); 747e3cf00d0SUpinder Malhi return -EINVAL; 748e3cf00d0SUpinder Malhi } 749e3cf00d0SUpinder Malhi 750e3cf00d0SUpinder Malhi int usnic_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 751e3cf00d0SUpinder Malhi struct ib_send_wr **bad_wr) 752e3cf00d0SUpinder Malhi { 753e3cf00d0SUpinder Malhi usnic_dbg("\n"); 754e3cf00d0SUpinder Malhi return -EINVAL; 755e3cf00d0SUpinder Malhi } 756e3cf00d0SUpinder Malhi 757e3cf00d0SUpinder Malhi int usnic_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, 758e3cf00d0SUpinder Malhi struct ib_recv_wr **bad_wr) 759e3cf00d0SUpinder Malhi { 760e3cf00d0SUpinder Malhi usnic_dbg("\n"); 761e3cf00d0SUpinder Malhi return -EINVAL; 762e3cf00d0SUpinder Malhi } 763e3cf00d0SUpinder Malhi 764e3cf00d0SUpinder Malhi int usnic_ib_poll_cq(struct ib_cq *ibcq, int num_entries, 765e3cf00d0SUpinder Malhi struct ib_wc *wc) 766e3cf00d0SUpinder Malhi { 767e3cf00d0SUpinder Malhi usnic_dbg("\n"); 768e3cf00d0SUpinder Malhi return -EINVAL; 769e3cf00d0SUpinder Malhi } 770e3cf00d0SUpinder Malhi 771e3cf00d0SUpinder Malhi int usnic_ib_req_notify_cq(struct ib_cq *cq, 772e3cf00d0SUpinder Malhi enum ib_cq_notify_flags flags) 773e3cf00d0SUpinder Malhi { 774e3cf00d0SUpinder Malhi usnic_dbg("\n"); 775e3cf00d0SUpinder Malhi return -EINVAL; 776e3cf00d0SUpinder Malhi } 777e3cf00d0SUpinder Malhi 778e3cf00d0SUpinder Malhi struct ib_mr *usnic_ib_get_dma_mr(struct ib_pd *pd, int acc) 779e3cf00d0SUpinder Malhi { 780e3cf00d0SUpinder Malhi usnic_dbg("\n"); 781e3cf00d0SUpinder Malhi return ERR_PTR(-ENOMEM); 782e3cf00d0SUpinder Malhi } 783e3cf00d0SUpinder Malhi 784e3cf00d0SUpinder Malhi 785e3cf00d0SUpinder Malhi /* In ib callbacks section - End of stub funcs */ 786e3cf00d0SUpinder Malhi /* End of ib callbacks section */ 787