Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Adit Ranadive | 2390 | 92.49% | 5 | 19.23% |
Leon Romanovsky | 77 | 2.98% | 5 | 19.23% |
Dasaratharaman Chandramouli | 38 | 1.47% | 2 | 7.69% |
Bryan Tan | 15 | 0.58% | 1 | 3.85% |
shamir rabinovitch | 15 | 0.58% | 3 | 11.54% |
Steve Wise | 12 | 0.46% | 1 | 3.85% |
Maor Gottlieb | 11 | 0.43% | 1 | 3.85% |
Mark Bloch | 6 | 0.23% | 1 | 3.85% |
Jason Gunthorpe | 6 | 0.23% | 1 | 3.85% |
Suren Baghdasaryan | 4 | 0.15% | 1 | 3.85% |
Gal Pressman | 4 | 0.15% | 2 | 7.69% |
Ariel Levkovich | 3 | 0.12% | 1 | 3.85% |
Or Gerlitz | 2 | 0.08% | 1 | 3.85% |
Kamal Heib | 1 | 0.04% | 1 | 3.85% |
Total | 2584 | 26 |
/* * Copyright (c) 2012-2016 VMware, Inc. All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of EITHER the GNU General Public License * version 2 as published by the Free Software Foundation or the BSD * 2-Clause License. This program is distributed in the hope that it * will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License version 2 for more details at * http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html. * * You should have received a copy of the GNU General Public License * along with this program available in the file COPYING in the main * directory of this source tree. * * The BSD 2-Clause License * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <asm/page.h> #include <linux/inet.h> #include <linux/io.h> #include <rdma/ib_addr.h> #include <rdma/ib_smi.h> #include <rdma/ib_user_verbs.h> #include <rdma/vmw_pvrdma-abi.h> #include <rdma/uverbs_ioctl.h> #include "pvrdma.h" /** * pvrdma_query_device - query device * @ibdev: the device to query * @props: the device properties * @uhw: user data * * @return: 0 on success, otherwise negative errno */ int pvrdma_query_device(struct ib_device *ibdev, struct ib_device_attr *props, struct ib_udata *uhw) { struct pvrdma_dev *dev = to_vdev(ibdev); if (uhw->inlen || uhw->outlen) return -EINVAL; props->fw_ver = dev->dsr->caps.fw_ver; props->sys_image_guid = dev->dsr->caps.sys_image_guid; props->max_mr_size = dev->dsr->caps.max_mr_size; props->page_size_cap = dev->dsr->caps.page_size_cap; props->vendor_id = dev->dsr->caps.vendor_id; props->vendor_part_id = dev->pdev->device; props->hw_ver = dev->dsr->caps.hw_ver; props->max_qp = dev->dsr->caps.max_qp; props->max_qp_wr = dev->dsr->caps.max_qp_wr; props->device_cap_flags = dev->dsr->caps.device_cap_flags; props->max_send_sge = dev->dsr->caps.max_sge; props->max_recv_sge = dev->dsr->caps.max_sge; props->max_sge_rd = PVRDMA_GET_CAP(dev, dev->dsr->caps.max_sge, dev->dsr->caps.max_sge_rd); props->max_srq = dev->dsr->caps.max_srq; props->max_srq_wr = dev->dsr->caps.max_srq_wr; props->max_srq_sge = dev->dsr->caps.max_srq_sge; props->max_cq = dev->dsr->caps.max_cq; props->max_cqe = dev->dsr->caps.max_cqe; props->max_mr = dev->dsr->caps.max_mr; props->max_pd = dev->dsr->caps.max_pd; props->max_qp_rd_atom = dev->dsr->caps.max_qp_rd_atom; props->max_qp_init_rd_atom = dev->dsr->caps.max_qp_init_rd_atom; props->atomic_cap = dev->dsr->caps.atomic_ops & (PVRDMA_ATOMIC_OP_COMP_SWAP | PVRDMA_ATOMIC_OP_FETCH_ADD) ? IB_ATOMIC_HCA : IB_ATOMIC_NONE; props->masked_atomic_cap = props->atomic_cap; props->max_ah = dev->dsr->caps.max_ah; props->max_pkeys = dev->dsr->caps.max_pkeys; props->local_ca_ack_delay = dev->dsr->caps.local_ca_ack_delay; if ((dev->dsr->caps.bmme_flags & PVRDMA_BMME_FLAG_LOCAL_INV) && (dev->dsr->caps.bmme_flags & PVRDMA_BMME_FLAG_REMOTE_INV) && (dev->dsr->caps.bmme_flags & PVRDMA_BMME_FLAG_FAST_REG_WR)) { props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; props->max_fast_reg_page_list_len = PVRDMA_GET_CAP(dev, PVRDMA_MAX_FAST_REG_PAGES, dev->dsr->caps.max_fast_reg_page_list_len); } props->device_cap_flags |= IB_DEVICE_PORT_ACTIVE_EVENT | IB_DEVICE_RC_RNR_NAK_GEN; return 0; } /** * pvrdma_query_port - query device port attributes * @ibdev: the device to query * @port: the port number * @props: the device properties * * @return: 0 on success, otherwise negative errno */ int pvrdma_query_port(struct ib_device *ibdev, u32 port, struct ib_port_attr *props) { struct pvrdma_dev *dev = to_vdev(ibdev); union pvrdma_cmd_req req; union pvrdma_cmd_resp rsp; struct pvrdma_cmd_query_port *cmd = &req.query_port; struct pvrdma_cmd_query_port_resp *resp = &rsp.query_port_resp; int err; memset(cmd, 0, sizeof(*cmd)); cmd->hdr.cmd = PVRDMA_CMD_QUERY_PORT; cmd->port_num = port; err = pvrdma_cmd_post(dev, &req, &rsp, PVRDMA_CMD_QUERY_PORT_RESP); if (err < 0) { dev_warn(&dev->pdev->dev, "could not query port, error: %d\n", err); return err; } /* props being zeroed by the caller, avoid zeroing it here */ props->state = pvrdma_port_state_to_ib(resp->attrs.state); props->max_mtu = pvrdma_mtu_to_ib(resp->attrs.max_mtu); props->active_mtu = pvrdma_mtu_to_ib(resp->attrs.active_mtu); props->gid_tbl_len = resp->attrs.gid_tbl_len; props->port_cap_flags = pvrdma_port_cap_flags_to_ib(resp->attrs.port_cap_flags); props->port_cap_flags |= IB_PORT_CM_SUP; props->ip_gids = true; props->max_msg_sz = resp->attrs.max_msg_sz; props->bad_pkey_cntr = resp->attrs.bad_pkey_cntr; props->qkey_viol_cntr = resp->attrs.qkey_viol_cntr; props->pkey_tbl_len = resp->attrs.pkey_tbl_len; props->lid = resp->attrs.lid; props->sm_lid = resp->attrs.sm_lid; props->lmc = resp->attrs.lmc; props->max_vl_num = resp->attrs.max_vl_num; props->sm_sl = resp->attrs.sm_sl; props->subnet_timeout = resp->attrs.subnet_timeout; props->init_type_reply = resp->attrs.init_type_reply; props->active_width = pvrdma_port_width_to_ib(resp->attrs.active_width); props->active_speed = pvrdma_port_speed_to_ib(resp->attrs.active_speed); props->phys_state = resp->attrs.phys_state; return 0; } /** * pvrdma_query_gid - query device gid * @ibdev: the device to query * @port: the port number * @index: the index * @gid: the device gid value * * @return: 0 on success, otherwise negative errno */ int pvrdma_query_gid(struct ib_device *ibdev, u32 port, int index, union ib_gid *gid) { struct pvrdma_dev *dev = to_vdev(ibdev); if (index >= dev->dsr->caps.gid_tbl_len) return -EINVAL; memcpy(gid, &dev->sgid_tbl[index], sizeof(union ib_gid)); return 0; } /** * pvrdma_query_pkey - query device port's P_Key table * @ibdev: the device to query * @port: the port number * @index: the index * @pkey: the device P_Key value * * @return: 0 on success, otherwise negative errno */ int pvrdma_query_pkey(struct ib_device *ibdev, u32 port, u16 index, u16 *pkey) { int err = 0; union pvrdma_cmd_req req; union pvrdma_cmd_resp rsp; struct pvrdma_cmd_query_pkey *cmd = &req.query_pkey; memset(cmd, 0, sizeof(*cmd)); cmd->hdr.cmd = PVRDMA_CMD_QUERY_PKEY; cmd->port_num = port; cmd->index = index; err = pvrdma_cmd_post(to_vdev(ibdev), &req, &rsp, PVRDMA_CMD_QUERY_PKEY_RESP); if (err < 0) { dev_warn(&to_vdev(ibdev)->pdev->dev, "could not query pkey, error: %d\n", err); return err; } *pkey = rsp.query_pkey_resp.pkey; return 0; } enum rdma_link_layer pvrdma_port_link_layer(struct ib_device *ibdev, u32 port) { return IB_LINK_LAYER_ETHERNET; } int pvrdma_modify_device(struct ib_device *ibdev, int mask, struct ib_device_modify *props) { unsigned long flags; if (mask & ~(IB_DEVICE_MODIFY_SYS_IMAGE_GUID | IB_DEVICE_MODIFY_NODE_DESC)) { dev_warn(&to_vdev(ibdev)->pdev->dev, "unsupported device modify mask %#x\n", mask); return -EOPNOTSUPP; } if (mask & IB_DEVICE_MODIFY_NODE_DESC) { spin_lock_irqsave(&to_vdev(ibdev)->desc_lock, flags); memcpy(ibdev->node_desc, props->node_desc, 64); spin_unlock_irqrestore(&to_vdev(ibdev)->desc_lock, flags); } if (mask & IB_DEVICE_MODIFY_SYS_IMAGE_GUID) { mutex_lock(&to_vdev(ibdev)->port_mutex); to_vdev(ibdev)->sys_image_guid = cpu_to_be64(props->sys_image_guid); mutex_unlock(&to_vdev(ibdev)->port_mutex); } return 0; } /** * pvrdma_modify_port - modify device port attributes * @ibdev: the device to modify * @port: the port number * @mask: attributes to modify * @props: the device properties * * @return: 0 on success, otherwise negative errno */ int pvrdma_modify_port(struct ib_device *ibdev, u32 port, int mask, struct ib_port_modify *props) { struct ib_port_attr attr; struct pvrdma_dev *vdev = to_vdev(ibdev); int ret; if (mask & ~IB_PORT_SHUTDOWN) { dev_warn(&vdev->pdev->dev, "unsupported port modify mask %#x\n", mask); return -EOPNOTSUPP; } mutex_lock(&vdev->port_mutex); ret = ib_query_port(ibdev, port, &attr); if (ret) goto out; vdev->port_cap_mask |= props->set_port_cap_mask; vdev->port_cap_mask &= ~props->clr_port_cap_mask; if (mask & IB_PORT_SHUTDOWN) vdev->ib_active = false; out: mutex_unlock(&vdev->port_mutex); return ret; } /** * pvrdma_alloc_ucontext - allocate ucontext * @uctx: the uverbs countext * @udata: user data * * @return: zero on success, otherwise errno. */ int pvrdma_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata) { struct ib_device *ibdev = uctx->device; struct pvrdma_dev *vdev = to_vdev(ibdev); struct pvrdma_ucontext *context = to_vucontext(uctx); union pvrdma_cmd_req req = {}; union pvrdma_cmd_resp rsp = {}; struct pvrdma_cmd_create_uc *cmd = &req.create_uc; struct pvrdma_cmd_create_uc_resp *resp = &rsp.create_uc_resp; struct pvrdma_alloc_ucontext_resp uresp = {}; int ret; if (!vdev->ib_active) return -EAGAIN; context->dev = vdev; ret = pvrdma_uar_alloc(vdev, &context->uar); if (ret) return -ENOMEM; /* get ctx_handle from host */ if (vdev->dsr_version < PVRDMA_PPN64_VERSION) cmd->pfn = context->uar.pfn; else cmd->pfn64 = context->uar.pfn; cmd->hdr.cmd = PVRDMA_CMD_CREATE_UC; ret = pvrdma_cmd_post(vdev, &req, &rsp, PVRDMA_CMD_CREATE_UC_RESP); if (ret < 0) { dev_warn(&vdev->pdev->dev, "could not create ucontext, error: %d\n", ret); goto err; } context->ctx_handle = resp->ctx_handle; /* copy back to user */ uresp.qp_tab_size = vdev->dsr->caps.max_qp; ret = ib_copy_to_udata(udata, &uresp, sizeof(uresp)); if (ret) { pvrdma_uar_free(vdev, &context->uar); pvrdma_dealloc_ucontext(&context->ibucontext); return -EFAULT; } return 0; err: pvrdma_uar_free(vdev, &context->uar); return ret; } /** * pvrdma_dealloc_ucontext - deallocate ucontext * @ibcontext: the ucontext */ void pvrdma_dealloc_ucontext(struct ib_ucontext *ibcontext) { struct pvrdma_ucontext *context = to_vucontext(ibcontext); union pvrdma_cmd_req req = {}; struct pvrdma_cmd_destroy_uc *cmd = &req.destroy_uc; int ret; cmd->hdr.cmd = PVRDMA_CMD_DESTROY_UC; cmd->ctx_handle = context->ctx_handle; ret = pvrdma_cmd_post(context->dev, &req, NULL, 0); if (ret < 0) dev_warn(&context->dev->pdev->dev, "destroy ucontext failed, error: %d\n", ret); /* Free the UAR even if the device command failed */ pvrdma_uar_free(to_vdev(ibcontext->device), &context->uar); } /** * pvrdma_mmap - create mmap region * @ibcontext: the user context * @vma: the VMA * * @return: 0 on success, otherwise errno. */ int pvrdma_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) { struct pvrdma_ucontext *context = to_vucontext(ibcontext); unsigned long start = vma->vm_start; unsigned long size = vma->vm_end - vma->vm_start; unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; dev_dbg(&context->dev->pdev->dev, "create mmap region\n"); if ((size != PAGE_SIZE) || (offset & ~PAGE_MASK)) { dev_warn(&context->dev->pdev->dev, "invalid params for mmap region\n"); return -EINVAL; } /* Map UAR to kernel space, VM_LOCKED? */ vm_flags_set(vma, VM_DONTCOPY | VM_DONTEXPAND); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); if (io_remap_pfn_range(vma, start, context->uar.pfn, size, vma->vm_page_prot)) return -EAGAIN; return 0; } /** * pvrdma_alloc_pd - allocate protection domain * @ibpd: PD pointer * @udata: user data * * @return: the ib_pd protection domain pointer on success, otherwise errno. */ int pvrdma_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) { struct ib_device *ibdev = ibpd->device; struct pvrdma_pd *pd = to_vpd(ibpd); struct pvrdma_dev *dev = to_vdev(ibdev); union pvrdma_cmd_req req = {}; union pvrdma_cmd_resp rsp = {}; struct pvrdma_cmd_create_pd *cmd = &req.create_pd; struct pvrdma_cmd_create_pd_resp *resp = &rsp.create_pd_resp; struct pvrdma_alloc_pd_resp pd_resp = {0}; int ret; struct pvrdma_ucontext *context = rdma_udata_to_drv_context( udata, struct pvrdma_ucontext, ibucontext); /* Check allowed max pds */ if (!atomic_add_unless(&dev->num_pds, 1, dev->dsr->caps.max_pd)) return -ENOMEM; cmd->hdr.cmd = PVRDMA_CMD_CREATE_PD; cmd->ctx_handle = context ? context->ctx_handle : 0; ret = pvrdma_cmd_post(dev, &req, &rsp, PVRDMA_CMD_CREATE_PD_RESP); if (ret < 0) { dev_warn(&dev->pdev->dev, "failed to allocate protection domain, error: %d\n", ret); goto err; } pd->privileged = !udata; pd->pd_handle = resp->pd_handle; pd->pdn = resp->pd_handle; pd_resp.pdn = resp->pd_handle; if (udata) { if (ib_copy_to_udata(udata, &pd_resp, sizeof(pd_resp))) { dev_warn(&dev->pdev->dev, "failed to copy back protection domain\n"); pvrdma_dealloc_pd(&pd->ibpd, udata); return -EFAULT; } } /* u32 pd handle */ return 0; err: atomic_dec(&dev->num_pds); return ret; } /** * pvrdma_dealloc_pd - deallocate protection domain * @pd: the protection domain to be released * @udata: user data or null for kernel object * * @return: Always 0 */ int pvrdma_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata) { struct pvrdma_dev *dev = to_vdev(pd->device); union pvrdma_cmd_req req = {}; struct pvrdma_cmd_destroy_pd *cmd = &req.destroy_pd; int ret; cmd->hdr.cmd = PVRDMA_CMD_DESTROY_PD; cmd->pd_handle = to_vpd(pd)->pd_handle; ret = pvrdma_cmd_post(dev, &req, NULL, 0); if (ret) dev_warn(&dev->pdev->dev, "could not dealloc protection domain, error: %d\n", ret); atomic_dec(&dev->num_pds); return 0; } /** * pvrdma_create_ah - create an address handle * @ibah: the IB address handle * @init_attr: the attributes of the AH * @udata: pointer to user data * * @return: 0 on success, otherwise errno. */ int pvrdma_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr, struct ib_udata *udata) { struct rdma_ah_attr *ah_attr = init_attr->ah_attr; struct pvrdma_dev *dev = to_vdev(ibah->device); struct pvrdma_ah *ah = to_vah(ibah); const struct ib_global_route *grh; u32 port_num = rdma_ah_get_port_num(ah_attr); if (!(rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH)) return -EINVAL; grh = rdma_ah_read_grh(ah_attr); if ((ah_attr->type != RDMA_AH_ATTR_TYPE_ROCE) || rdma_is_multicast_addr((struct in6_addr *)grh->dgid.raw)) return -EINVAL; if (!atomic_add_unless(&dev->num_ahs, 1, dev->dsr->caps.max_ah)) return -ENOMEM; ah->av.port_pd = to_vpd(ibah->pd)->pd_handle | (port_num << 24); ah->av.src_path_bits = rdma_ah_get_path_bits(ah_attr); ah->av.src_path_bits |= 0x80; ah->av.gid_index = grh->sgid_index; ah->av.hop_limit = grh->hop_limit; ah->av.sl_tclass_flowlabel = (grh->traffic_class << 20) | grh->flow_label; memcpy(ah->av.dgid, grh->dgid.raw, 16); memcpy(ah->av.dmac, ah_attr->roce.dmac, ETH_ALEN); return 0; } /** * pvrdma_destroy_ah - destroy an address handle * @ah: the address handle to destroyed * @flags: destroy address handle flags (see enum rdma_destroy_ah_flags) * */ int pvrdma_destroy_ah(struct ib_ah *ah, u32 flags) { struct pvrdma_dev *dev = to_vdev(ah->device); atomic_dec(&dev->num_ahs); return 0; }
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