From patchwork Tue Feb 12 21:43:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiraz Saleem X-Patchwork-Id: 10808791 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 055F213B4 for ; Tue, 12 Feb 2019 21:45:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D73EF2C1D2 for ; Tue, 12 Feb 2019 21:45:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D2F622C1D8; Tue, 12 Feb 2019 21:45:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B706C2C1F4 for ; Tue, 12 Feb 2019 21:45:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731352AbfBLVpo (ORCPT ); Tue, 12 Feb 2019 16:45:44 -0500 Received: from mga09.intel.com ([134.134.136.24]:17169 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732310AbfBLVo7 (ORCPT ); Tue, 12 Feb 2019 16:44:59 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Feb 2019 13:44:48 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,362,1544515200"; d="scan'208";a="319838997" Received: from ssaleem-mobl4.amr.corp.intel.com ([10.122.129.109]) by fmsmga005.fm.intel.com with ESMTP; 12 Feb 2019 13:44:45 -0800 From: Shiraz Saleem To: dledford@redhat.com, jgg@ziepe.ca, davem@davemloft.net Cc: linux-rdma@vger.kernel.org, netdev@vger.kernel.org, mustafa.ismail@intel.com, jeffrey.t.kirsher@intel.com, Shiraz Saleem Subject: [RFC 12/19] RDMA/irdma: Implement device supported verb APIs Date: Tue, 12 Feb 2019 15:43:55 -0600 Message-Id: <20190212214402.23284-13-shiraz.saleem@intel.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20190212214402.23284-1-shiraz.saleem@intel.com> References: <20190212214402.23284-1-shiraz.saleem@intel.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Mustafa Ismail Implement device supported verb APIs. The supported APIs vary based on the underlying transport the ibdev is registered as (i.e. iWARP or RoCEv2). Signed-off-by: Mustafa Ismail Signed-off-by: Shiraz Saleem --- drivers/infiniband/hw/irdma/verbs.c | 4267 ++++++++++++++++++++++++++++++ drivers/infiniband/hw/irdma/verbs.h | 191 ++ include/uapi/rdma/rdma_user_ioctl_cmds.h | 1 + 3 files changed, 4459 insertions(+) create mode 100644 drivers/infiniband/hw/irdma/verbs.c create mode 100644 drivers/infiniband/hw/irdma/verbs.h diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c new file mode 100644 index 0000000..af843b9 --- /dev/null +++ b/drivers/infiniband/hw/irdma/verbs.c @@ -0,0 +1,4267 @@ +// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB +/* Copyright (c) 2019, Intel Corporation. */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "main.h" + +/** + * irdma_query_device - get device attributes + * @ibdev: device pointer from stack + * @props: returning device attributes + * @udata: user data + */ +static int irdma_query_device(struct ib_device *ibdev, + struct ib_device_attr *props, + struct ib_udata *udata) +{ + struct irdma_device *iwdev = to_iwdev(ibdev); + struct irdma_pci_f *rf = iwdev->rf; + struct pci_dev *pdev = iwdev->rf->pdev; + + if (udata->inlen || udata->outlen) + return -EINVAL; + + memset(props, 0, sizeof(*props)); + ether_addr_copy((u8 *)&props->sys_image_guid, iwdev->netdev->dev_addr); + props->fw_ver = (u64)FW_MAJOR_VER(&rf->sc_dev) << 32 | + FW_MINOR_VER(&rf->sc_dev) << 16; + props->device_cap_flags = iwdev->device_cap_flags; + props->vendor_id = pdev->vendor; + props->vendor_part_id = pdev->device; + props->hw_ver = (u32)rf->sc_dev.pci_rev; + props->max_mr_size = rf->sc_dev.hw_attrs.max_hw_outbound_msg_size; + props->max_qp = rf->max_qp - rf->used_qps; + props->max_qp_wr = rf->sc_dev.hw_attrs.max_qp_wr; + props->max_send_sge = rf->sc_dev.hw_attrs.max_hw_wq_frags; + props->max_recv_sge = rf->sc_dev.hw_attrs.max_hw_wq_frags; + props->max_cq = rf->max_cq - rf->used_cqs; + props->max_cqe = rf->max_cqe; + props->max_mr = rf->max_mr - rf->used_mrs; + props->max_mw = props->max_mr; + props->max_pd = rf->max_pd - rf->used_pds; + props->max_sge_rd = rf->sc_dev.hw_attrs.max_hw_read_sges; + props->max_qp_rd_atom = rf->sc_dev.hw_attrs.max_hw_ird; + props->max_qp_init_rd_atom = props->max_qp_rd_atom; + props->atomic_cap = IB_ATOMIC_NONE; + props->max_map_per_fmr = 1; + props->max_ah = rf->max_ah; + props->max_mcast_grp = rf->max_mcg; + props->max_mcast_qp_attach = IRDMA_MAX_MGS_PER_CTX; + props->max_total_mcast_qp_attach = rf->max_qp * IRDMA_MAX_MGS_PER_CTX; + props->max_fast_reg_page_list_len = IRDMA_MAX_PAGES_PER_FMR; + + return 0; +} + +/** + * irdma_get_eth_speed_and_width - Get IB port speed and width from netdev speed + * @link speed: netdev phy link speed + * @active_speed: IB port speed + * @active width: IB port width + */ +static void irdma_get_eth_speed_and_width(u32 link_speed, + u8 *active_speed, + u8 *active_width) +{ + if (link_speed <= SPEED_1000) { + *active_width = IB_WIDTH_1X; + *active_speed = IB_SPEED_SDR; + } else if (link_speed <= SPEED_10000) { + *active_width = IB_WIDTH_1X; + *active_speed = IB_SPEED_FDR10; + } else if (link_speed <= SPEED_20000) { + *active_width = IB_WIDTH_4X; + *active_speed = IB_SPEED_DDR; + } else if (link_speed <= SPEED_25000) { + *active_width = IB_WIDTH_1X; + *active_speed = IB_SPEED_EDR; + } else if (link_speed <= SPEED_40000) { + *active_width = IB_WIDTH_4X; + *active_speed = IB_SPEED_FDR10; + } else { + *active_width = IB_WIDTH_4X; + *active_speed = IB_SPEED_EDR; + } +} + +/** + * irdma_query_port - get port attributes + * @ibdev: device pointer from stack + * @port: port number for query + * @props: returning device attributes + */ +static int irdma_query_port(struct ib_device *ibdev, + u8 port, + struct ib_port_attr *props) +{ + struct irdma_device *iwdev = to_iwdev(ibdev); + struct net_device *netdev = iwdev->netdev; + + memset(props, 0, sizeof(*props)); + props->max_mtu = IB_MTU_4096; + props->active_mtu = ib_mtu_int_to_enum(netdev->mtu); + + props->lid = 1; + props->lmc = 0; + props->sm_lid = 0; + props->sm_sl = 0; + if (netif_carrier_ok(netdev) && netif_running(netdev)) { + props->state = IB_PORT_ACTIVE; + props->phys_state = 5; + } else { + props->state = IB_PORT_DOWN; + props->phys_state = 3; + } + irdma_get_eth_speed_and_width(SPEED_100000, &props->active_speed, + &props->active_width); + + if (rdma_protocol_roce(ibdev, 1)) { + props->gid_tbl_len = 32; + props->ip_gids = true; + } else { + props->gid_tbl_len = 1; + } + props->pkey_tbl_len = 1; + props->qkey_viol_cntr = 0; + props->port_cap_flags |= IB_PORT_CM_SUP | IB_PORT_REINIT_SUP; + props->max_msg_sz = iwdev->rf->sc_dev.hw_attrs.max_hw_outbound_msg_size; + + return 0; +} + +/** + * irdma_alloc_ucontext - Allocate the user context data structure + * @ibdev: device pointer from stack + * @udata: user data + * + * This keeps track of all objects associated with a particular + * user-mode client. + */ +static struct ib_ucontext *irdma_alloc_ucontext(struct ib_device *ibdev, + struct ib_udata *udata) +{ + struct irdma_device *iwdev = to_iwdev(ibdev); + struct irdma_alloc_ucontext_req req; + struct irdma_alloc_ucontext_resp uresp = {}; + struct i40iw_alloc_ucontext_resp uresp_gen1 = {}; + struct irdma_ucontext *ucontext; + int err; + + if (ib_copy_from_udata(&req, udata, sizeof(req))) + return ERR_PTR(-EINVAL); + + if (req.userspace_ver > IRDMA_ABI_VER) { + err = -EINVAL; + goto ver_error; + } + + ucontext = kzalloc(sizeof(*ucontext), GFP_KERNEL); + if (!ucontext) + return ERR_PTR(-ENOMEM); + + ucontext->iwdev = iwdev; + ucontext->abi_ver = req.userspace_ver; + + if (iwdev->rf->sc_dev.hw_attrs.hw_rev == IRDMA_GEN_1) { + uresp_gen1.max_qps = iwdev->rf->max_qp; + uresp_gen1.max_pds = iwdev->rf->sc_dev.hw_attrs.max_hw_pds; + uresp_gen1.wq_size = iwdev->rf->sc_dev.hw_attrs.max_qp_wr * 2; + uresp_gen1.kernel_ver = req.userspace_ver; + if (ib_copy_to_udata(udata, &uresp_gen1, sizeof(uresp_gen1))) { + kfree(ucontext); + return ERR_PTR(-EFAULT); + } + } else { + if (req.userspace_ver < IRDMA_ABI_VER) { + err = -EINVAL; + goto ver_error; + } + uresp.kernel_ver = req.userspace_ver; + uresp.hw_attrs = iwdev->rf->sc_dev.hw_attrs; + if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) { + kfree(ucontext); + return ERR_PTR(-EFAULT); + } + } + + INIT_LIST_HEAD(&ucontext->cq_reg_mem_list); + spin_lock_init(&ucontext->cq_reg_mem_list_lock); + INIT_LIST_HEAD(&ucontext->qp_reg_mem_list); + spin_lock_init(&ucontext->qp_reg_mem_list_lock); + INIT_LIST_HEAD(&ucontext->vma_list); + mutex_init(&ucontext->vma_list_mutex); + + return &ucontext->ibucontext; + +ver_error: + irdma_dev_err(&iwdev->rf->sc_dev, + "Invalid userspace driver version detected. Detected version %d, should be %d\n", + req.userspace_ver, IRDMA_ABI_VER); + uresp.kernel_ver = IRDMA_ABI_VER; + return ERR_PTR(-EINVAL); +} + +/** + * irdma_dealloc_ucontext - deallocate the user context data structure + * @context: user context created during alloc + */ +static int irdma_dealloc_ucontext(struct ib_ucontext *context) +{ + struct irdma_ucontext *ucontext = to_ucontext(context); + unsigned long flags; + + spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); + if (!list_empty(&ucontext->cq_reg_mem_list)) { + spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); + return -EBUSY; + } + spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); + + spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); + if (!list_empty(&ucontext->qp_reg_mem_list)) { + spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); + return -EBUSY; + } + spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); + kfree(ucontext); + + return 0; +} + +/** + * irdma_vma_open - + * @vma: User VMA + */ +static void irdma_vma_open(struct vm_area_struct *vma) +{ + vma->vm_ops = NULL; +} + +/** + * irdma_vma_close - Remove vma data from vma list + * @vma: User VMA + */ +static void irdma_vma_close(struct vm_area_struct *vma) +{ + struct irdma_vma_data *vma_data; + + vma_data = (struct irdma_vma_data *)vma->vm_private_data; + vma->vm_private_data = NULL; + vma_data->vma = NULL; + mutex_lock(vma_data->vma_list_mutex); + list_del(&vma_data->list); + mutex_unlock(vma_data->vma_list_mutex); + kfree(vma_data); +} + +static const struct vm_operations_struct irdma_vm_ops = { + .open = irdma_vma_open, + .close = irdma_vma_close +}; + +/** + * irdma_set_vma_data - Save vma data in context list + * @vma: User VMA + * @context: ib user context + */ +static int irdma_set_vma_data(struct vm_area_struct *vma, + struct irdma_ucontext *context) +{ + struct list_head *vma_head = &context->vma_list; + struct irdma_vma_data *vma_entry; + + vma_entry = kzalloc(sizeof(*vma_entry), GFP_KERNEL); + if (!vma_entry) + return -ENOMEM; + + vma->vm_private_data = vma_entry; + vma->vm_ops = &irdma_vm_ops; + + vma_entry->vma = vma; + vma_entry->vma_list_mutex = &context->vma_list_mutex; + + mutex_lock(&context->vma_list_mutex); + list_add(&vma_entry->list, vma_head); + mutex_unlock(&context->vma_list_mutex); + + return 0; +} + +/** + * irdma_disassociate_ucontext - Disassociate user context + * @context: ib user context + */ +static void irdma_disassociate_ucontext(struct ib_ucontext *context) +{ + struct irdma_ucontext *ucontext = to_ucontext(context); + + struct irdma_vma_data *vma_data, *n; + struct vm_area_struct *vma; + + irdma_dev_info(&ucontext->iwdev->rf->sc_dev, "called\n"); + mutex_lock(&ucontext->vma_list_mutex); + list_for_each_entry_safe(vma_data, n, &ucontext->vma_list, list) { + vma = vma_data->vma; + zap_vma_ptes(vma, vma->vm_start, PAGE_SIZE); + + vma->vm_flags &= ~(VM_SHARED | VM_MAYSHARE); + vma->vm_ops = NULL; + list_del(&vma_data->list); + kfree(vma_data); + } + mutex_unlock(&ucontext->vma_list_mutex); +} + +/** + * irdma_mmap - user memory map + * @context: context created during alloc + * @vma: kernel info for user memory map + */ +static int irdma_mmap(struct ib_ucontext *context, + struct vm_area_struct *vma) +{ + struct irdma_ucontext *ucontext; + u64 db_addr_offset; + u64 push_offset; + + ucontext = to_ucontext(context); + db_addr_offset = ucontext->iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET]; + if (ucontext->iwdev->rf->sc_dev.is_pf) { + push_offset = IRDMA_PUSH_OFFSET; + if (vma->vm_pgoff) + vma->vm_pgoff += IRDMA_PF_FIRST_PUSH_PAGE_INDEX - 1; + } else { + push_offset = IRDMA_VF_PUSH_OFFSET; + if (vma->vm_pgoff) + vma->vm_pgoff += IRDMA_VF_FIRST_PUSH_PAGE_INDEX - 1; + } + + vma->vm_pgoff += db_addr_offset >> PAGE_SHIFT; + if (vma->vm_pgoff == (db_addr_offset >> PAGE_SHIFT)) { + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + vma->vm_private_data = ucontext; + } else { + if ((vma->vm_pgoff - (push_offset >> PAGE_SHIFT)) % 2) + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + else + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); + } + + if (io_remap_pfn_range(vma, + vma->vm_start, + vma->vm_pgoff + (pci_resource_start(ucontext->iwdev->rf->pdev, 0) + >> PAGE_SHIFT), + PAGE_SIZE, + vma->vm_page_prot)) + return -EAGAIN; + + return irdma_set_vma_data(vma, ucontext); +} + +/** + * irdma_alloc_push_page - allocate a push page for qp + * @rf: RDMA PCI function + * @qp: hardware control qp + */ +static void irdma_alloc_push_page(struct irdma_pci_f *rf, + struct irdma_sc_qp *qp) +{ + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + enum irdma_status_code status; + + if (qp->push_idx != IRDMA_INVALID_PUSH_PAGE_INDEX) + return; + + cqp_request = irdma_get_cqp_request(&rf->cqp, true); + if (!cqp_request) + return; + + atomic_inc(&cqp_request->refcount); + cqp_info = &cqp_request->info; + cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE; + cqp_info->post_sq = 1; + cqp_info->in.u.manage_push_page.info.qs_handle = qp->qs_handle; + cqp_info->in.u.manage_push_page.info.free_page = 0; + cqp_info->in.u.manage_push_page.cqp = &rf->cqp.sc_cqp; + cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request; + + status = irdma_handle_cqp_op(rf, cqp_request); + if (!status) + qp->push_idx = cqp_request->compl_info.op_ret_val; + else + irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR, "CQP-OP Push page fail"); + + irdma_put_cqp_request(&rf->cqp, cqp_request); +} + +/** + * irdma_alloc_pd - allocate protection domain + * @ibdev: device pointer from stack + * @context: user context created during alloc + * @udata: user data + */ +static struct ib_pd *irdma_alloc_pd(struct ib_device *ibdev, + struct ib_ucontext *context, + struct ib_udata *udata) +{ + struct irdma_pd *iwpd; + struct irdma_device *iwdev = to_iwdev(ibdev); + struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; + struct irdma_pci_f *rf = iwdev->rf; + struct irdma_alloc_pd_resp uresp = {}; + struct irdma_sc_pd *sc_pd; + struct irdma_ucontext *ucontext; + u32 pd_id = 0; + int err; + + if (iwdev->closing) + return ERR_PTR(-ENODEV); + + err = irdma_alloc_rsrc(rf, rf->allocated_pds, rf->max_pd, &pd_id, + &rf->next_pd); + if (err) + return ERR_PTR(err); + + iwpd = kzalloc(sizeof(*iwpd), GFP_KERNEL); + if (!iwpd) { + err = -ENOMEM; + goto free_res; + } + + sc_pd = &iwpd->sc_pd; + if (context) { + ucontext = to_ucontext(context); + dev->iw_pd_ops->pd_init(dev, sc_pd, pd_id, ucontext->abi_ver); + uresp.pd_id = pd_id; + if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) { + err = -EFAULT; + goto error; + } + } else { + dev->iw_pd_ops->pd_init(dev, sc_pd, pd_id, -1); + } + + irdma_add_pdusecount(iwpd); + return &iwpd->ibpd; + +error: + kfree(iwpd); +free_res: + irdma_free_rsrc(rf, rf->allocated_pds, pd_id); + + return ERR_PTR(err); +} + +/** + * irdma_dealloc_pd - deallocate pd + * @ibpd: ptr of pd to be deallocated + */ +static int irdma_dealloc_pd(struct ib_pd *ibpd) +{ + struct irdma_pd *iwpd = to_iwpd(ibpd); + struct irdma_device *iwdev = to_iwdev(ibpd->device); + + irdma_rem_pdusecount(iwpd, iwdev); + + return 0; +} + +/** + * irdma_get_pbl - Retrieve pbl from a list given a virtual + * address + * @va: user virtual address + * @pbl_list: pbl list to search in (QP's or CQ's) + */ +static struct irdma_pbl *irdma_get_pbl(unsigned long va, + struct list_head *pbl_list) +{ + struct irdma_pbl *iwpbl; + + list_for_each_entry(iwpbl, pbl_list, list) { + if (iwpbl->user_base == va) { + list_del(&iwpbl->list); + iwpbl->on_list = false; + return iwpbl; + } + } + + return NULL; +} + +/** + * irdma_clean_cqes - clean cq entries for qp + * @iwqp: qp ptr (user or kernel) + * @iwcq: cq ptr + */ +static void irdma_clean_cqes(struct irdma_qp *iwqp, + struct irdma_cq *iwcq) +{ + struct irdma_cq_uk *ukcq = &iwcq->sc_cq.cq_uk; + + ukcq->ops.iw_cq_clean(&iwqp->sc_qp.qp_uk, ukcq); +} + +/** + * irdma_destroy_qp - destroy qp + * @ibqp: qp's ib pointer also to get to device's qp address + */ +static int irdma_destroy_qp(struct ib_qp *ibqp) +{ + struct irdma_qp *iwqp = to_iwqp(ibqp); + + if (atomic_read(&iwqp->mcast_ref_cnt)) + return -EBUSY; + + iwqp->destroyed = 1; + if (iwqp->ibqp_state >= IB_QPS_INIT && iwqp->ibqp_state < IB_QPS_RTS) + irdma_next_iw_state(iwqp, IRDMA_QP_STATE_ERROR, 0, 0, 0); + + if (!iwqp->user_mode) { + if (iwqp->iwscq) { + irdma_clean_cqes(iwqp, iwqp->iwscq); + if (iwqp->iwrcq != iwqp->iwscq) + irdma_clean_cqes(iwqp, iwqp->iwrcq); + } + } + + irdma_rem_ref(&iwqp->ibqp); + + return 0; +} + +/** + * irdma_setup_virt_qp - setup for allocation of virtual qp + * @dev: iwarp device + * @qp: qp ptr + * @init_info: initialize info to return + */ +static int irdma_setup_virt_qp(struct irdma_device *iwdev, + struct irdma_qp *iwqp, + struct irdma_qp_init_info *init_info) +{ + struct irdma_pbl *iwpbl = iwqp->iwpbl; + struct irdma_qp_mr *qpmr = &iwpbl->qp_mr; + + iwqp->page = qpmr->sq_page; + init_info->shadow_area_pa = qpmr->shadow; + if (iwpbl->pbl_allocated) { + init_info->virtual_map = true; + init_info->sq_pa = qpmr->sq_pbl.idx; + init_info->rq_pa = qpmr->rq_pbl.idx; + } else { + init_info->sq_pa = qpmr->sq_pbl.addr; + init_info->rq_pa = qpmr->rq_pbl.addr; + } + + return 0; +} + +/** + * irdma_setup_kmode_qp - setup initialization for kernel mode qp + * @iwdev: iwarp device + * @iwqp: qp ptr (user or kernel) + * @info: initialize info to return + */ +static int irdma_setup_kmode_qp(struct irdma_device *iwdev, + struct irdma_qp *iwqp, + struct irdma_qp_init_info *info) +{ + struct irdma_dma_mem *mem = &iwqp->kqp.dma_mem; + u32 sqdepth, rqdepth; + u8 sqshift, rqshift; + u32 size; + enum irdma_status_code status; + struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info; + + irdma_get_wqe_shift(&iwdev->rf->sc_dev.hw_attrs, + ukinfo->max_sq_frag_cnt + 1, + ukinfo->max_inline_data, + &sqshift); + status = irdma_get_sqdepth(&iwdev->rf->sc_dev.hw_attrs, + ukinfo->sq_size, + sqshift, + &sqdepth); + if (status) + return -ENOMEM; + + irdma_get_wqe_shift(&iwdev->rf->sc_dev.hw_attrs, + ukinfo->max_rq_frag_cnt, + 0, + &rqshift); + status = irdma_get_rqdepth(&iwdev->rf->sc_dev.hw_attrs, + ukinfo->rq_size, + rqshift, + &rqdepth); + if (status) + return -ENOMEM; + + size = sqdepth * sizeof(struct irdma_sq_uk_wr_trk_info) + + (rqdepth << 3); + iwqp->kqp.wrid_mem = kzalloc(size, GFP_KERNEL); + ukinfo->sq_wrtrk_array = (struct irdma_sq_uk_wr_trk_info *) + iwqp->kqp.wrid_mem; + if (!ukinfo->sq_wrtrk_array) + return -ENOMEM; + + ukinfo->rq_wrid_array = (u64 *)&ukinfo->sq_wrtrk_array[sqdepth]; + size = (sqdepth + rqdepth) * IRDMA_QP_WQE_MIN_SIZE; + size += (IRDMA_SHADOW_AREA_SIZE << 3); + + status = irdma_allocate_dma_mem(iwdev->rf->sc_dev.hw, mem, size, 256); + if (status) { + kfree(ukinfo->sq_wrtrk_array); + ukinfo->sq_wrtrk_array = NULL; + return -ENOMEM; + } + + ukinfo->sq = mem->va; + info->sq_pa = mem->pa; + ukinfo->rq = &ukinfo->sq[sqdepth]; + info->rq_pa = info->sq_pa + (sqdepth * IRDMA_QP_WQE_MIN_SIZE); + ukinfo->shadow_area = ukinfo->rq[rqdepth].elem; + info->shadow_area_pa = info->rq_pa + (rqdepth * IRDMA_QP_WQE_MIN_SIZE); + ukinfo->sq_size = sqdepth >> sqshift; + ukinfo->rq_size = rqdepth >> rqshift; + ukinfo->qp_id = iwqp->ibqp.qp_num; + + return 0; +} + +/** + * irdma_roce_mtu - set MTU to supported path MTU values + * @mtu: MTU + */ +static u32 irdma_roce_mtu(u32 mtu) +{ + if (mtu > 4096) + return 4096; + else if (mtu > 2048) + return 2048; + else if (mtu > 1024) + return 1024; + else if (mtu > 512) + return 512; + else + return 256; +} + +/** + * irdma_create_qp - create qp + * @ibpd: ptr of pd + * @init_attr: attributes for qp + * @udata: user data for create qp + */ +static struct ib_qp *irdma_create_qp(struct ib_pd *ibpd, + struct ib_qp_init_attr *init_attr, + struct ib_udata *udata) +{ + struct irdma_pd *iwpd = to_iwpd(ibpd); + struct irdma_device *iwdev = to_iwdev(ibpd->device); + struct irdma_pci_f *rf = iwdev->rf; + struct irdma_cqp *iwcqp = &rf->cqp; + struct irdma_qp *iwqp; + struct irdma_ucontext *ucontext; + struct irdma_create_qp_req req; + struct irdma_create_qp_resp uresp = {}; + struct i40iw_create_qp_resp uresp_gen1 = {}; + u32 qp_num = 0; + void *mem; + enum irdma_status_code ret; + int err_code = 0; + int sq_size; + int rq_size; + struct irdma_sc_qp *qp; + struct irdma_sc_dev *dev = &rf->sc_dev; + struct irdma_qp_init_info init_info = {}; + struct irdma_create_qp_info *qp_info; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_qp_host_ctx_info *ctx_info; + struct irdma_iwarp_offload_info *iwarp_info; + struct irdma_roce_offload_info *roce_info; + struct irdma_udp_offload_info *udp_info; + unsigned long flags; + + if (iwdev->closing) + return ERR_PTR(-ENODEV); + + if (init_attr->create_flags) + return ERR_PTR(-EINVAL); + + if (init_attr->cap.max_inline_data > dev->hw_attrs.max_hw_inline) + init_attr->cap.max_inline_data = dev->hw_attrs.max_hw_inline; + + if (init_attr->cap.max_send_sge > dev->hw_attrs.max_hw_wq_frags) + init_attr->cap.max_send_sge = dev->hw_attrs.max_hw_wq_frags; + + if (init_attr->cap.max_recv_sge > dev->hw_attrs.max_hw_wq_frags) + init_attr->cap.max_recv_sge = dev->hw_attrs.max_hw_wq_frags; + + sq_size = init_attr->cap.max_send_wr; + rq_size = init_attr->cap.max_recv_wr; + + init_info.vsi = &iwdev->vsi; + init_info.qp_uk_init_info.hw_attrs = &dev->hw_attrs; + init_info.qp_uk_init_info.sq_size = sq_size; + init_info.qp_uk_init_info.rq_size = rq_size; + init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge; + init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge; + init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data; + + mem = kzalloc(sizeof(*iwqp), GFP_KERNEL); + if (!mem) + return ERR_PTR(-ENOMEM); + + iwqp = (struct irdma_qp *)mem; + iwqp->allocated_buf = mem; + qp = &iwqp->sc_qp; + qp->back_qp = (void *)iwqp; + qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX; + + if (irdma_allocate_dma_mem(dev->hw, + &iwqp->q2_ctx_mem, + IRDMA_Q2_BUF_SIZE + IRDMA_QP_CTX_SIZE, + 256)) { + err_code = -ENOMEM; + goto error; + } + + init_info.q2 = iwqp->q2_ctx_mem.va; + init_info.q2_pa = iwqp->q2_ctx_mem.pa; + init_info.host_ctx = (void *)init_info.q2 + IRDMA_Q2_BUF_SIZE; + init_info.host_ctx_pa = init_info.q2_pa + IRDMA_Q2_BUF_SIZE; + + if (init_attr->qp_type == IB_QPT_GSI && rf->sc_dev.is_pf) + qp_num = 1; + else + err_code = irdma_alloc_rsrc(rf, rf->allocated_qps, rf->max_qp, + &qp_num, &rf->next_qp); + if (err_code) + goto error; + + iwqp->iwdev = iwdev; + iwqp->iwpd = iwpd; + if (init_attr->qp_type == IB_QPT_GSI && !rf->sc_dev.is_pf) + iwqp->ibqp.qp_num = 1; + else + iwqp->ibqp.qp_num = qp_num; + + qp = &iwqp->sc_qp; + iwqp->iwscq = to_iwcq(init_attr->send_cq); + iwqp->iwrcq = to_iwcq(init_attr->recv_cq); + iwqp->host_ctx.va = init_info.host_ctx; + iwqp->host_ctx.pa = init_info.host_ctx_pa; + iwqp->host_ctx.size = IRDMA_QP_CTX_SIZE; + + init_info.pd = &iwpd->sc_pd; + init_info.qp_uk_init_info.qp_id = iwqp->ibqp.qp_num; + if (!rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) + init_info.qp_uk_init_info.first_sq_wq = 1; + iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp; + init_waitqueue_head(&iwqp->waitq); + init_waitqueue_head(&iwqp->mod_qp_waitq); + + if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) { + if (init_attr->qp_type != IB_QPT_RC && + init_attr->qp_type != IB_QPT_UD && + init_attr->qp_type != IB_QPT_GSI) { + err_code = -EINVAL; + goto error; + } + } else { + if (init_attr->qp_type != IB_QPT_RC) { + err_code = -EINVAL; + goto error; + } + } + + if (iwdev->push_mode) + irdma_alloc_push_page(rf, qp); + + if (udata) { + err_code = ib_copy_from_udata(&req, udata, sizeof(req)); + if (err_code) { + irdma_debug(dev, IRDMA_DEBUG_ERR, + "ib_copy_from_data fail\n"); + goto error; + } + + iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx; + iwqp->user_mode = 1; + ucontext = to_ucontext(ibpd->uobject->context); + if (req.user_wqe_bufs) { + spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); + iwqp->iwpbl = irdma_get_pbl((unsigned long)req.user_wqe_bufs, + &ucontext->qp_reg_mem_list); + spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); + + if (!iwqp->iwpbl) { + err_code = -ENODATA; + irdma_debug(dev, IRDMA_DEBUG_ERR, + "no pbl info\n"); + goto error; + } + } + err_code = irdma_setup_virt_qp(iwdev, iwqp, &init_info); + } else { + err_code = irdma_setup_kmode_qp(iwdev, iwqp, &init_info); + } + + if (err_code) { + irdma_debug(dev, IRDMA_DEBUG_ERR, "setup qp failed\n"); + goto error; + } + + if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) { + if (init_attr->qp_type == IB_QPT_RC) { + init_info.type = IRDMA_QP_TYPE_ROCE_RC; + init_info.qp_uk_init_info.qp_caps = + IRDMA_SEND_WITH_IMM | IRDMA_WRITE_WITH_IMM | IRDMA_ROCE; + } else { + init_info.type = IRDMA_QP_TYPE_ROCE_UD; + init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM | IRDMA_ROCE; + } + } else { + init_info.type = IRDMA_QP_TYPE_IWARP; + init_info.qp_uk_init_info.qp_caps = IRDMA_WRITE_WITH_IMM; + } + + ret = dev->iw_priv_qp_ops->qp_init(qp, &init_info); + if (ret) { + err_code = -EPROTO; + irdma_debug(dev, IRDMA_DEBUG_ERR, "qp_init fail\n"); + goto error; + } + + ctx_info = &iwqp->ctx_info; + if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) { + iwqp->ctx_info.roce_info = &iwqp->roce_info; + iwqp->ctx_info.udp_info = &iwqp->udp_info; + udp_info = &iwqp->udp_info; + udp_info->snd_mss = irdma_roce_mtu(iwdev->vsi.mtu); + udp_info->cwnd = 0x400; + udp_info->src_port = 0xc000; + udp_info->dst_port = ROCE_V2_UDP_DPORT; + roce_info = &iwqp->roce_info; + ether_addr_copy(roce_info->mac_addr, iwdev->netdev->dev_addr); + + if (init_attr->qp_type == IB_QPT_GSI && !rf->sc_dev.is_pf) + roce_info->is_qp1 = true; + roce_info->rd_en = true; + roce_info->wr_rdresp_en = true; + roce_info->dctcp_en = iwdev->dctcp_en; + roce_info->ecn_en = iwdev->ecn_en; + roce_info->dcqcn_en = iwdev->roce_dcqcn_en; + roce_info->timely_en = iwdev->roce_timely_en; + + roce_info->ack_credits = 0x1E; + roce_info->ird_size = IRDMA_MAX_ENCODED_IRD_SIZE; + roce_info->ord_size = dev->hw_attrs.max_hw_ord; + + if (!iwqp->user_mode) { + roce_info->priv_mode_en = true; + roce_info->fast_reg_en = true; + roce_info->udprivcq_en = true; + } + roce_info->roce_tver = 0; + } else { + iwqp->ctx_info.iwarp_info = &iwqp->iwarp_info; + iwarp_info = &iwqp->iwarp_info; + ether_addr_copy(iwarp_info->mac_addr, iwdev->netdev->dev_addr); + iwarp_info->rd_en = true; + iwarp_info->wr_rdresp_en = true; + iwarp_info->ib_rd_en = true; + if (!iwqp->user_mode) { + iwarp_info->priv_mode_en = true; + iwarp_info->fast_reg_en = true; + } + iwarp_info->ddp_ver = 1; + iwarp_info->rdmap_ver = 1; + ctx_info->iwarp_info_valid = true; + } + + ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id; + ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id; + if (qp->push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX) { + ctx_info->push_mode_en = false; + } else { + ctx_info->push_mode_en = true; + ctx_info->push_idx = qp->push_idx; + } + + if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) { + ret = + dev->iw_priv_qp_ops->qp_setctx_roce(&iwqp->sc_qp, + iwqp->host_ctx.va, + ctx_info); + } else { + ret = dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp, + iwqp->host_ctx.va, + ctx_info); + ctx_info->iwarp_info_valid = false; + } + + cqp_request = irdma_get_cqp_request(iwcqp, true); + if (!cqp_request) { + err_code = -ENOMEM; + goto error; + } + + cqp_info = &cqp_request->info; + qp_info = &cqp_request->info.in.u.qp_create.info; + memset(qp_info, 0, sizeof(*qp_info)); + qp_info->mac_valid = true; + qp_info->cq_num_valid = true; + qp_info->next_iwarp_state = IRDMA_QP_STATE_IDLE; + + cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE; + cqp_info->post_sq = 1; + cqp_info->in.u.qp_create.qp = qp; + cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request; + ret = irdma_handle_cqp_op(rf, cqp_request); + if (ret) { + irdma_debug(dev, IRDMA_DEBUG_ERR, "CQP-OP QP create fail"); + err_code = -ENOMEM; + goto error; + } + + irdma_add_ref(&iwqp->ibqp); + spin_lock_init(&iwqp->lock); + spin_lock_init(&iwqp->sc_qp.pfpdu.lock); + iwqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) ? 1 : 0; + rf->qp_table[qp_num] = iwqp; + irdma_add_pdusecount(iwqp->iwpd); + irdma_add_devusecount(iwdev); + if (udata) { + if (iwdev->rf->sc_dev.hw_attrs.hw_rev == IRDMA_GEN_1) { + uresp_gen1.lsmm = 1; + uresp_gen1.actual_sq_size = sq_size; + uresp_gen1.actual_rq_size = rq_size; + uresp_gen1.qp_id = qp_num; + uresp_gen1.push_idx = qp->push_idx; + uresp_gen1.lsmm = 1; + err_code = ib_copy_to_udata(udata, &uresp_gen1, sizeof(uresp_gen1)); + } else { + if (rdma_protocol_iwarp(&iwdev->iwibdev->ibdev, 1)) + uresp.lsmm = 1; + uresp.actual_sq_size = sq_size; + uresp.actual_rq_size = rq_size; + uresp.qp_id = qp_num; + uresp.push_idx = qp->push_idx; + uresp.qp_caps = qp->qp_uk.qp_caps; + + err_code = ib_copy_to_udata(udata, &uresp, sizeof(uresp)); + } + if (err_code) { + irdma_debug(dev, IRDMA_DEBUG_ERR, "copy_to_udata failed\n"); + irdma_destroy_qp(&iwqp->ibqp); + return ERR_PTR(err_code); + } + } + init_completion(&iwqp->sq_drained); + init_completion(&iwqp->rq_drained); + return &iwqp->ibqp; + +error: + irdma_free_qp_rsrc(iwdev, iwqp, qp_num); + + return ERR_PTR(err_code); +} + +/** + * irdma_query - query qp attributes + * @ibqp: qp pointer + * @attr: attributes pointer + * @attr_mask: Not used + * @init_attr: qp attributes to return + */ +static int irdma_query_qp(struct ib_qp *ibqp, + struct ib_qp_attr *attr, + int attr_mask, + struct ib_qp_init_attr *init_attr) +{ + struct irdma_qp *iwqp = to_iwqp(ibqp); + struct irdma_sc_qp *qp = &iwqp->sc_qp; + + attr->qp_state = iwqp->ibqp_state; + attr->cur_qp_state = iwqp->ibqp_state; + attr->qp_access_flags = 0; + attr->cap.max_send_wr = qp->qp_uk.sq_size - 1; + attr->cap.max_recv_wr = qp->qp_uk.rq_size - 1; + attr->cap.max_inline_data = qp->qp_uk.max_inline_data; + attr->cap.max_send_sge = qp->qp_uk.max_sq_frag_cnt; + attr->cap.max_recv_sge = qp->qp_uk.max_rq_frag_cnt; + attr->qkey = iwqp->roce_info.qkey; + + init_attr->event_handler = iwqp->ibqp.event_handler; + init_attr->qp_context = iwqp->ibqp.qp_context; + init_attr->send_cq = iwqp->ibqp.send_cq; + init_attr->recv_cq = iwqp->ibqp.recv_cq; + init_attr->srq = iwqp->ibqp.srq; + init_attr->cap = attr->cap; + + return 0; +} + +/** + * irdma_query_pkey - Query partition key + * @ibdev: device pointer from stack + * @port: port number + * @index: index of pkey + * @pkey: pointer to store the pkey + */ +static int irdma_query_pkey(struct ib_device *ibdev, + u8 port, + u16 index, + u16 *pkey) +{ + struct irdma_device *iwdev = to_iwdev(ibdev); + + if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) + *pkey = 0xFFFF; + else + *pkey = 0; + + return 0; +} + +/** + * irdma_modify_qp_roce - modify qp request + * @ibqp: qp's pointer for modify + * @attr: access attributes + * @attr_mask: state mask + * @udata: user data + */ +int irdma_modify_qp_roce(struct ib_qp *ibqp, + struct ib_qp_attr *attr, + int attr_mask, + struct ib_udata *udata) +{ + struct irdma_pd *iwpd = to_iwpd(ibqp->pd); + struct irdma_qp *iwqp = to_iwqp(ibqp); + struct irdma_device *iwdev = iwqp->iwdev; + struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; + struct irdma_qp_host_ctx_info *ctx_info; + struct irdma_roce_offload_info *roce_info; + struct irdma_udp_offload_info *udp_info; + struct irdma_modify_qp_info info = {}; + unsigned long flags; + u8 issue_modify_qp = 0; + int ret = 0; + + ctx_info = &iwqp->ctx_info; + roce_info = &iwqp->roce_info; + udp_info = &iwqp->udp_info; + + if (attr_mask & IB_QP_DEST_QPN) + roce_info->dest_qp = attr->dest_qp_num; + + if (attr_mask & IB_QP_PKEY_INDEX) { + irdma_query_pkey(ibqp->device, 0, attr->pkey_index, + &roce_info->p_key); + } + + if (attr_mask & IB_QP_QKEY) + roce_info->qkey = attr->qkey; + + if (attr_mask & IB_QP_PORT) + iwqp->roce_ah.av.attrs.port_num = attr->ah_attr.port_num; + + if (attr_mask & IB_QP_PATH_MTU) { + const u16 path_mtu[] = {-1, 256, 512, 1024, 2048, 4096}; + + if (attr->path_mtu < IB_MTU_256 || + attr->path_mtu > IB_MTU_4096 || + iwdev->vsi.mtu <= path_mtu[attr->path_mtu]) { + irdma_dev_warn(dev, "Invalid MTU %d\n", attr->path_mtu); + return -EINVAL; + } + + udp_info->snd_mss = path_mtu[attr->path_mtu]; + } + + if (attr_mask & IB_QP_SQ_PSN) { + udp_info->psn_nxt = attr->sq_psn; + udp_info->lsn = 0xffff; + udp_info->psn_una = attr->sq_psn; + udp_info->psn_max = attr->sq_psn; + } + + if (attr_mask & IB_QP_RQ_PSN) + udp_info->epsn = attr->rq_psn; + + if (attr_mask & IB_QP_RNR_RETRY) + udp_info->rnr_nak_thresh = attr->rnr_retry; + + if (attr_mask & IB_QP_RETRY_CNT) + udp_info->rexmit_thresh = attr->retry_cnt; + + ctx_info->roce_info->pd_id = iwpd->sc_pd.pd_id; + + if (attr_mask & IB_QP_AV) { + struct irdma_av *av = &iwqp->roce_ah.av; + const struct ib_gid_attr *sgid_attr; + u16 vlan_id = IRDMA_NO_VLAN; + u32 local_ip[4]; + + memset(&iwqp->roce_ah, 0, sizeof(iwqp->roce_ah)); + if (attr->ah_attr.ah_flags & IB_AH_GRH) { + udp_info->ttl = attr->ah_attr.grh.hop_limit; + udp_info->flow_label = attr->ah_attr.grh.flow_label; + dev->ws_remove(iwqp->sc_qp.vsi, ctx_info->user_pri); + ctx_info->user_pri = attr->ah_attr.grh.traffic_class; + if (dev->ws_add(iwqp->sc_qp.vsi, ctx_info->user_pri)) + return -ENOMEM; + irdma_qp_add_qos(&iwqp->sc_qp); + } + sgid_attr = attr->ah_attr.grh.sgid_attr; + if (sgid_attr->ndev) { + vlan_id = rdma_vlan_dev_vlan_id(sgid_attr->ndev); + ether_addr_copy(ctx_info->roce_info->mac_addr, + sgid_attr->ndev->dev_addr); + } + udp_info->vlan_tag = vlan_id; + if (udp_info->vlan_tag != IRDMA_NO_VLAN) + udp_info->insert_vlan_tag = true; + else + udp_info->insert_vlan_tag = false; + av->attrs = attr->ah_attr; + av->attrs.port_num = attr->ah_attr.port_num; + rdma_gid2ip(&av->sgid_addr.saddr, &sgid_attr->gid); + rdma_gid2ip(&av->dgid_addr.saddr, &attr->ah_attr.grh.dgid); + roce_info->local_qp = ibqp->qp_num; + if (av->sgid_addr.saddr.sa_family == AF_INET6) { + __be32 *daddr = + av->dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32; + __be32 *saddr = + av->sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32; + + irdma_copy_ip_ntohl(&udp_info->dest_ip_addr0, daddr); + irdma_copy_ip_ntohl(&udp_info->local_ipaddr0, saddr); + + udp_info->ipv4 = false; + irdma_copy_ip_ntohl(local_ip, daddr); + + udp_info->arp_idx = irdma_arp_table(iwdev->rf, + &local_ip[0], + false, NULL, + IRDMA_ARP_RESOLVE); + } else { + __be32 saddr = av->sgid_addr.saddr_in.sin_addr.s_addr; + __be32 daddr = av->dgid_addr.saddr_in.sin_addr.s_addr; + + local_ip[0] = ntohl(daddr); + + udp_info->ipv4 = true; + udp_info->dest_ip_addr0 = 0; + udp_info->dest_ip_addr1 = 0; + udp_info->dest_ip_addr2 = 0; + udp_info->dest_ip_addr3 = local_ip[0]; + + udp_info->local_ipaddr0 = 0; + udp_info->local_ipaddr1 = 0; + udp_info->local_ipaddr2 = 0; + udp_info->local_ipaddr3 = ntohl(saddr); + } + udp_info->arp_idx = + irdma_add_arp(iwdev->rf, local_ip, udp_info->ipv4, + attr->ah_attr.roce.dmac); + } + + if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { + if (attr->max_rd_atomic > dev->hw_attrs.max_hw_ord) { + irdma_dev_err(dev, + "rd_atomic = %d, above max_hw_ord=%d\n", + attr->max_rd_atomic, + dev->hw_attrs.max_hw_ord); + return -EINVAL; + } + if (attr->max_rd_atomic) + roce_info->ord_size = attr->max_rd_atomic; + info.ord_valid = true; + } + + if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { + if (attr->max_dest_rd_atomic > dev->hw_attrs.max_hw_ird) { + irdma_dev_err(dev, + "rd_atomic = %d, above max_hw_ird=%d\n", + attr->max_rd_atomic, + dev->hw_attrs.max_hw_ird); + return -EINVAL; + } + if (attr->max_dest_rd_atomic) + roce_info->ird_size = irdma_derive_hw_ird_setting(attr->max_dest_rd_atomic); + } + + if (attr_mask & IB_QP_ACCESS_FLAGS) { + if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE) + roce_info->wr_rdresp_en = true; + if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE) + roce_info->wr_rdresp_en = true; + if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ) + roce_info->rd_en = true; + if (attr->qp_access_flags & IB_ACCESS_MW_BIND) + roce_info->bind_en = true; + + if (iwqp->user_mode) { + roce_info->rd_en = true; + roce_info->wr_rdresp_en = true; + roce_info->priv_mode_en = false; + } + } + + spin_lock_irqsave(&iwqp->lock, flags); + if (attr_mask & IB_QP_STATE) { + if (!ib_modify_qp_is_ok(iwqp->ibqp_state, attr->qp_state, + iwqp->ibqp.qp_type, attr_mask)) { + irdma_dev_warn(dev, "modify_qp invalid for qp_id=%d, old_state=0x%x, new_state=0x%x\n", + iwqp->ibqp.qp_num, iwqp->ibqp_state, attr->qp_state); + return -EINVAL; + } + if (iwdev->closing && attr->qp_state != IB_QPS_ERR) { + ret = -EINVAL; + goto exit; + } + info.curr_iwarp_state = iwqp->iwarp_state; + + switch (attr->qp_state) { + case IB_QPS_INIT: + if (iwqp->iwarp_state > (u32)IRDMA_QP_STATE_IDLE) { + ret = -EINVAL; + goto exit; + } + + if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) { + info.next_iwarp_state = IRDMA_QP_STATE_IDLE; + issue_modify_qp = 1; + } + break; + case IB_QPS_RTR: + if (iwqp->iwarp_state > (u32)IRDMA_QP_STATE_IDLE) { + ret = -EINVAL; + goto exit; + } + info.arp_cache_idx_valid = true; + info.cq_num_valid = true; + info.next_iwarp_state = IRDMA_QP_STATE_RTR; + issue_modify_qp = 1; + break; + case IB_QPS_RTS: + if (iwqp->ibqp_state < IB_QPS_RTR || + iwqp->ibqp_state == IB_QPS_ERR) { + ret = -EINVAL; + goto exit; + } + + info.arp_cache_idx_valid = true; + info.cq_num_valid = true; + info.next_iwarp_state = IRDMA_QP_STATE_RTS; + issue_modify_qp = 1; + break; + case IB_QPS_SQD: + if (iwqp->hw_iwarp_state > (u32)IRDMA_QP_STATE_RTS) + goto exit; + + if (iwqp->iwarp_state == (u32)IRDMA_QP_STATE_CLOSING || + iwqp->iwarp_state < (u32)IRDMA_QP_STATE_RTS) + goto exit; + + if (iwqp->iwarp_state > (u32)IRDMA_QP_STATE_CLOSING) { + ret = -EINVAL; + goto exit; + } + + info.next_iwarp_state = IRDMA_QP_STATE_ERROR; + issue_modify_qp = 1; + break; + + case IB_QPS_SQE: + case IB_QPS_ERR: + case IB_QPS_RESET: + if (iwqp->ibqp_state == IB_QPS_SQD) + break; + + if (iwqp->iwarp_state == (u32)IRDMA_QP_STATE_ERROR) { + ret = -EINVAL; + goto exit; + } + + info.next_iwarp_state = IRDMA_QP_STATE_ERROR; + issue_modify_qp = 1; + break; + default: + ret = -EINVAL; + goto exit; + } + + iwqp->ibqp_state = attr->qp_state; + } + + ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id; + ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id; + ret = dev->iw_priv_qp_ops->qp_setctx_roce(&iwqp->sc_qp, + iwqp->host_ctx.va, + ctx_info); + spin_unlock_irqrestore(&iwqp->lock, flags); + + if (ret) { + irdma_debug(dev, IRDMA_DEBUG_ERR, "setctx_roce\n"); + return -EINVAL; + } + + if (attr_mask & IB_QP_STATE) { + if (issue_modify_qp) { + if (irdma_hw_modify_qp(iwdev, iwqp, &info, true)) + return -EINVAL; + spin_lock_irqsave(&iwqp->lock, flags); + if (iwqp->iwarp_state == info.curr_iwarp_state) { + iwqp->iwarp_state = info.next_iwarp_state; + iwqp->ibqp_state = attr->qp_state; + } + if (iwqp->ibqp_state > IB_QPS_RTS && !iwqp->flush_issued) { + iwqp->flush_issued = 1; + spin_unlock_irqrestore(&iwqp->lock, flags); + irdma_flush_wqes(iwdev->rf, iwqp); + } else { + spin_unlock_irqrestore(&iwqp->lock, flags); + } + } else { + iwqp->ibqp_state = attr->qp_state; + } + } + + return 0; +exit: + spin_unlock_irqrestore(&iwqp->lock, flags); + + return ret; +} + +/** + * irdma_modify_qp - modify qp request + * @ibqp: qp's pointer for modify + * @attr: access attributes + * @attr_mask: state mask + * @udata: user data + */ +int irdma_modify_qp(struct ib_qp *ibqp, + struct ib_qp_attr *attr, + int attr_mask, + struct ib_udata *udata) +{ + struct irdma_qp *iwqp = to_iwqp(ibqp); + struct irdma_device *iwdev = iwqp->iwdev; + struct irdma_qp_host_ctx_info *ctx_info; + struct irdma_iwarp_offload_info *offload_info; + struct irdma_modify_qp_info info = {}; + u8 issue_modify_qp = 0; + u8 dont_wait = 0; + u32 err; + unsigned long flags; + + ctx_info = &iwqp->ctx_info; + offload_info = &iwqp->iwarp_info; + + spin_lock_irqsave(&iwqp->lock, flags); + if (attr_mask & IB_QP_STATE) { + if (iwdev->closing && attr->qp_state != IB_QPS_ERR) { + err = -EINVAL; + goto exit; + } + + info.curr_iwarp_state = iwqp->iwarp_state; + switch (attr->qp_state) { + case IB_QPS_INIT: + case IB_QPS_RTR: + if (iwqp->iwarp_state > (u32)IRDMA_QP_STATE_IDLE) { + err = -EINVAL; + goto exit; + } + + if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) { + info.next_iwarp_state = IRDMA_QP_STATE_IDLE; + issue_modify_qp = 1; + } + break; + case IB_QPS_RTS: + if (iwqp->iwarp_state > (u32)IRDMA_QP_STATE_RTS || + !iwqp->cm_id) { + err = -EINVAL; + goto exit; + } + + issue_modify_qp = 1; + iwqp->hw_tcp_state = IRDMA_TCP_STATE_ESTABLISHED; + iwqp->hte_added = 1; + info.next_iwarp_state = IRDMA_QP_STATE_RTS; + info.tcp_ctx_valid = true; + info.ord_valid = true; + info.arp_cache_idx_valid = true; + info.cq_num_valid = true; + break; + case IB_QPS_SQD: + if (iwqp->hw_iwarp_state > (u32)IRDMA_QP_STATE_RTS) { + err = 0; + goto exit; + } + + if (iwqp->iwarp_state == (u32)IRDMA_QP_STATE_CLOSING || + iwqp->iwarp_state < (u32)IRDMA_QP_STATE_RTS) { + err = 0; + goto exit; + } + + if (iwqp->iwarp_state > (u32)IRDMA_QP_STATE_CLOSING) { + err = -EINVAL; + goto exit; + } + + info.next_iwarp_state = IRDMA_QP_STATE_CLOSING; + issue_modify_qp = 1; + break; + case IB_QPS_SQE: + if (iwqp->iwarp_state >= (u32)IRDMA_QP_STATE_TERMINATE) { + err = -EINVAL; + goto exit; + } + + info.next_iwarp_state = IRDMA_QP_STATE_TERMINATE; + issue_modify_qp = 1; + break; + case IB_QPS_ERR: + case IB_QPS_RESET: + if (iwqp->iwarp_state == (u32)IRDMA_QP_STATE_ERROR) { + err = -EINVAL; + goto exit; + } + + if (iwqp->sc_qp.term_flags) + irdma_terminate_del_timer(&iwqp->sc_qp); + info.next_iwarp_state = IRDMA_QP_STATE_ERROR; + if (iwqp->hw_tcp_state > IRDMA_TCP_STATE_CLOSED && + iwdev->iw_status && + iwqp->hw_tcp_state != IRDMA_TCP_STATE_TIME_WAIT) + info.reset_tcp_conn = true; + else + dont_wait = 1; + + issue_modify_qp = 1; + info.next_iwarp_state = IRDMA_QP_STATE_ERROR; + break; + default: + err = -EINVAL; + goto exit; + } + + iwqp->ibqp_state = attr->qp_state; + } + if (attr_mask & IB_QP_ACCESS_FLAGS) { + ctx_info->iwarp_info_valid = true; + if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE) + offload_info->wr_rdresp_en = true; + if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE) + offload_info->wr_rdresp_en = true; + if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ) + offload_info->rd_en = true; + if (attr->qp_access_flags & IB_ACCESS_MW_BIND) + offload_info->bind_en = true; + + if (iwqp->user_mode) { + offload_info->rd_en = true; + offload_info->wr_rdresp_en = true; + offload_info->priv_mode_en = false; + } + } + + if (ctx_info->iwarp_info_valid) { + struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; + int ret; + + ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id; + ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id; + ret = dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp, + iwqp->host_ctx.va, + ctx_info); + if (ret) { + irdma_debug(dev, IRDMA_DEBUG_ERR, "setting QP context\n"); + err = -EINVAL; + goto exit; + } + } + spin_unlock_irqrestore(&iwqp->lock, flags); + + if (attr_mask & IB_QP_STATE) { + if (issue_modify_qp) { + if (irdma_hw_modify_qp(iwdev, iwqp, &info, true)) + return -EINVAL; + } + + spin_lock_irqsave(&iwqp->lock, flags); + if (iwqp->iwarp_state == info.curr_iwarp_state) { + iwqp->iwarp_state = info.next_iwarp_state; + iwqp->ibqp_state = attr->qp_state; + } + spin_unlock_irqrestore(&iwqp->lock, flags); + } + + if (issue_modify_qp && iwqp->ibqp_state > IB_QPS_RTS) { + if (dont_wait) { + if (iwqp->cm_id && iwqp->hw_tcp_state) { + spin_lock_irqsave(&iwqp->lock, flags); + iwqp->hw_tcp_state = IRDMA_TCP_STATE_CLOSED; + iwqp->last_aeq = IRDMA_AE_RESET_SENT; + spin_unlock_irqrestore(&iwqp->lock, flags); + irdma_cm_disconn(iwqp); + } + } else { + spin_lock_irqsave(&iwqp->lock, flags); + if (iwqp->cm_id) { + if (atomic_inc_return(&iwqp->close_timer_started) == 1) { + iwqp->cm_id->add_ref(iwqp->cm_id); + irdma_schedule_cm_timer(iwqp->cm_node, + (struct irdma_puda_buf *)iwqp, + IRDMA_TIMER_TYPE_CLOSE, + 1, + 0); + } + } + spin_unlock_irqrestore(&iwqp->lock, flags); + } + } + + return 0; +exit: + spin_unlock_irqrestore(&iwqp->lock, flags); + + return err; +} + +/** + * cq_free_resources - free up recources for cq + * @rf: RDMA PCI function + * @iwcq: cq ptr + */ +static void cq_free_rsrc(struct irdma_pci_f *rf, struct irdma_cq *iwcq) +{ + struct irdma_sc_cq *cq = &iwcq->sc_cq; + + if (!iwcq->user_mode) + irdma_free_dma_mem(rf->sc_dev.hw, &iwcq->kmem); + irdma_free_rsrc(rf, rf->allocated_cqs, cq->cq_uk.cq_id); +} + +/** + * irdma_destroy_cq - destroy cq + * @ib_cq: cq pointer + */ +static int irdma_destroy_cq(struct ib_cq *ib_cq) +{ + struct irdma_cq *iwcq; + struct irdma_device *iwdev; + struct irdma_sc_cq *cq; + + if (!ib_cq) { + irdma_pr_err("ib_cq == NULL\n"); + return 0; + } + + iwcq = to_iwcq(ib_cq); + iwdev = to_iwdev(ib_cq->device); + cq = &iwcq->sc_cq; + irdma_cq_wq_destroy(iwdev->rf, cq); + cq_free_rsrc(iwdev->rf, iwcq); + kfree(iwcq); + irdma_rem_devusecount(iwdev); + + return 0; +} + +/** + * irdma_create_cq - create cq + * @ibdev: device pointer from stack + * @attr: attributes for cq + * @context: user context created during alloc + * @udata: user data + */ +static struct ib_cq *irdma_create_cq(struct ib_device *ibdev, + const struct ib_cq_init_attr *attr, + struct ib_ucontext *context, + struct ib_udata *udata) +{ + struct irdma_device *iwdev = to_iwdev(ibdev); + struct irdma_pci_f *rf = iwdev->rf; + struct irdma_cq *iwcq; + struct irdma_pbl *iwpbl; + u32 cq_num = 0; + struct irdma_sc_cq *cq; + struct irdma_sc_dev *dev = &rf->sc_dev; + struct irdma_cq_init_info info = {}; + enum irdma_status_code status; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_cq_uk_init_info *ukinfo = &info.cq_uk_init_info; + unsigned long flags; + int err_code; + int entries = attr->cqe; + + if (iwdev->closing) + return ERR_PTR(-ENODEV); + + if (entries > rf->max_cqe) + return ERR_PTR(-EINVAL); + + iwcq = kzalloc(sizeof(*iwcq), GFP_KERNEL); + if (!iwcq) + return ERR_PTR(-ENOMEM); + + err_code = irdma_alloc_rsrc(rf, rf->allocated_cqs, + rf->max_cq, &cq_num, + &rf->next_cq); + if (err_code) + goto error; + + cq = &iwcq->sc_cq; + cq->back_cq = (void *)iwcq; + spin_lock_init(&iwcq->lock); + info.dev = dev; + ukinfo->cq_size = max(entries, 4); + ukinfo->cq_id = cq_num; + iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size; + if (attr->comp_vector < rf->ceqs_count) + info.ceq_id = attr->comp_vector; + info.ceq_id_valid = true; + info.ceqe_mask = 1; + info.type = IRDMA_CQ_TYPE_IWARP; + info.vsi = &iwdev->vsi; + + if (context) { + struct irdma_ucontext *ucontext; + struct irdma_create_cq_req req = {}; + struct irdma_cq_mr *cqmr; + + iwcq->user_mode = true; + ucontext = to_ucontext(context); + if (ib_copy_from_udata(&req, udata, + sizeof(struct irdma_create_cq_req))) + goto cq_free_rsrc; + + spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); + iwpbl = irdma_get_pbl((unsigned long)req.user_cq_buf, + &ucontext->cq_reg_mem_list); + spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); + if (!iwpbl) { + err_code = -EPROTO; + goto cq_free_rsrc; + } + + iwcq->iwpbl = iwpbl; + iwcq->cq_mem_size = 0; + cqmr = &iwpbl->cq_mr; + info.shadow_area_pa = cqmr->shadow; + if (iwpbl->pbl_allocated) { + info.virtual_map = true; + info.pbl_chunk_size = 1; + info.first_pm_pbl_idx = cqmr->cq_pbl.idx; + } else { + info.cq_base_pa = cqmr->cq_pbl.addr; + } + } else { + /* Kmode allocations */ + int rsize; + int shadow; + + rsize = info.cq_uk_init_info.cq_size * sizeof(struct irdma_cqe); + rsize = round_up(rsize, 256); + shadow = IRDMA_SHADOW_AREA_SIZE << 3; + status = irdma_allocate_dma_mem(dev->hw, &iwcq->kmem, + rsize + shadow, 256); + if (status) { + err_code = -ENOMEM; + goto cq_free_rsrc; + } + + ukinfo->cq_base = iwcq->kmem.va; + info.cq_base_pa = iwcq->kmem.pa; + info.shadow_area_pa = info.cq_base_pa + rsize; + ukinfo->shadow_area = iwcq->kmem.va + rsize; + } + + if (dev->iw_priv_cq_ops->cq_init(cq, &info)) { + irdma_debug(dev, IRDMA_DEBUG_ERR, "init cq fail\n"); + err_code = -EPROTO; + goto cq_free_rsrc; + } + + cqp_request = irdma_get_cqp_request(&rf->cqp, true); + if (!cqp_request) { + err_code = -ENOMEM; + goto cq_free_rsrc; + } + + cqp_info = &cqp_request->info; + cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE; + cqp_info->post_sq = 1; + cqp_info->in.u.cq_create.cq = cq; + cqp_info->in.u.cq_create.check_overflow = true; + cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request; + cqp_info->in.u.cq_create.check_overflow = true; + status = irdma_handle_cqp_op(rf, cqp_request); + if (status) { + irdma_debug(dev, IRDMA_DEBUG_ERR, "CQP-OP Create CQ fail"); + err_code = -ENOMEM; + goto cq_free_rsrc; + } + + if (context) { + struct irdma_create_cq_resp resp = {}; + + resp.cq_id = info.cq_uk_init_info.cq_id; + resp.cq_size = info.cq_uk_init_info.cq_size; + if (ib_copy_to_udata(udata, &resp, sizeof(resp))) { + irdma_debug(dev, IRDMA_DEBUG_ERR, "copy to user data\n"); + err_code = -EPROTO; + goto cq_destroy; + } + } + + irdma_add_devusecount(iwdev); + + return (struct ib_cq *)iwcq; + +cq_destroy: + irdma_cq_wq_destroy(rf, cq); +cq_free_rsrc: + cq_free_rsrc(rf, iwcq); +error: + kfree(iwcq); + + return ERR_PTR(err_code); +} + +/** + * irdma_get_user_access - get hw access from IB access + * @acc: IB access to return hw access + */ +static inline u16 irdma_get_user_access(int acc) +{ + u16 access = 0; + + access |= (acc & IB_ACCESS_LOCAL_WRITE) ? + IRDMA_ACCESS_FLAGS_LOCALWRITE : 0; + access |= (acc & IB_ACCESS_REMOTE_WRITE) ? + IRDMA_ACCESS_FLAGS_REMOTEWRITE : 0; + access |= (acc & IB_ACCESS_REMOTE_READ) ? + IRDMA_ACCESS_FLAGS_REMOTEREAD : 0; + access |= (acc & IB_ACCESS_MW_BIND) ? + IRDMA_ACCESS_FLAGS_BIND_WINDOW : 0; + + return access; +} + +/** + * irdma_free_stag - free stag resource + * @iwdev: iwarp device + * @stag: stag to free + */ +static void irdma_free_stag(struct irdma_device *iwdev, u32 stag) +{ + u32 stag_idx; + + stag_idx = (stag & iwdev->rf->mr_stagmask) >> IRDMA_CQPSQ_STAG_IDX_S; + irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_mrs, stag_idx); + irdma_rem_devusecount(iwdev); +} + +/** + * irdma_create_stag - create random stag + * @iwdev: iwarp device + */ +static u32 irdma_create_stag(struct irdma_device *iwdev) +{ + u32 stag = 0; + u32 stag_index = 0; + u32 next_stag_index; + u32 driver_key; + u32 random; + u8 consumer_key; + int ret; + + get_random_bytes(&random, sizeof(random)); + consumer_key = (u8)random; + + driver_key = random & ~iwdev->rf->mr_stagmask; + next_stag_index = (random & iwdev->rf->mr_stagmask) >> 8; + next_stag_index %= iwdev->rf->max_mr; + + ret = irdma_alloc_rsrc(iwdev->rf, + iwdev->rf->allocated_mrs, iwdev->rf->max_mr, + &stag_index, &next_stag_index); + if (!ret) { + stag = stag_index << IRDMA_CQPSQ_STAG_IDX_S; + stag |= driver_key; + stag += (u32)consumer_key; + irdma_add_devusecount(iwdev); + } + return stag; +} + +/** + * irdma_next_pbl_addr - Get next pbl address + * @pbl: pointer to a pble + * @pinfo: info pointer + * @idx: index + */ +static inline u64 *irdma_next_pbl_addr(u64 *pbl, + struct irdma_pble_info **pinfo, + u32 *idx) +{ + *idx += 1; + if ((!(*pinfo)) || (*idx != (*pinfo)->cnt)) + return ++pbl; + *idx = 0; + (*pinfo)++; + + return (u64 *)(*pinfo)->addr; +} + +/** + * irdma_copy_user_pgaddrs - copy user page address to pble's os locally + * @iwmr: iwmr for IB's user page addresses + * @pbl: ple pointer to save 1 level or 0 level pble + * @level: indicated level 0, 1 or 2 + */ +static void irdma_copy_user_pgaddrs(struct irdma_mr *iwmr, + u64 *pbl, + enum irdma_pble_level level) +{ + struct ib_umem *region = iwmr->region; + struct irdma_pbl *iwpbl = &iwmr->iwpbl; + int chunk_pages, entry, i; + struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; + struct irdma_pble_info *pinfo; + struct scatterlist *sg; + u64 pg_addr = 0; + u32 idx = 0; + + pinfo = (level == PBLE_LEVEL_1) ? NULL : palloc->level2.leaf; + + for_each_sg(region->sg_head.sgl, sg, region->nmap, entry) { + chunk_pages = DIV_ROUND_UP(sg_dma_len(sg), iwmr->page_size); + if (iwmr->type == IW_MEMREG_TYPE_QP && + !iwpbl->qp_mr.sq_page) + iwpbl->qp_mr.sq_page = sg_page(sg); + for (i = 0; i < chunk_pages; i++) { + pg_addr = sg_dma_address(sg) + (i * iwmr->page_size); + if ((entry + i) == 0) + *pbl = pg_addr & iwmr->page_msk; + else if (!(pg_addr & ~iwmr->page_msk)) + *pbl = pg_addr; + else + continue; + pbl = irdma_next_pbl_addr(pbl, &pinfo, &idx); + } + } +} + +/** + * irdma_check_mem_contiguous - check if pbls stored in arr are contiguous + * @arr: lvl1 pbl array + * @npages: page count + * pg_size: page size + * + */ +static bool irdma_check_mem_contiguous(u64 *arr, u32 npages, u32 pg_size) +{ + u32 pg_idx; + + for (pg_idx = 0; pg_idx < npages; pg_idx++) { + if ((*arr + (pg_size * pg_idx)) != arr[pg_idx]) + return false; + } + + return true; +} + +/** + * irdma_check_mr_contiguous - check if MR is physically contiguous + * @palloc: pbl allocation struct + * pg_size: page size + */ +static bool irdma_check_mr_contiguous(struct irdma_pble_alloc *palloc, + u32 pg_size) +{ + struct irdma_pble_level2 *lvl2 = &palloc->level2; + struct irdma_pble_info *leaf = lvl2->leaf; + u64 *arr = NULL; + u64 *start_addr = NULL; + int i; + bool ret; + + if (palloc->level == PBLE_LEVEL_1) { + arr = (u64 *)palloc->level1.addr; + ret = irdma_check_mem_contiguous(arr, palloc->total_cnt, + pg_size); + return ret; + } + + start_addr = (u64 *)leaf->addr; + + for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) { + arr = (u64 *)leaf->addr; + if ((*start_addr + (i * pg_size * PBLE_PER_PAGE)) != *arr) + return false; + ret = irdma_check_mem_contiguous(arr, leaf->cnt, pg_size); + if (!ret) + return false; + } + + return true; +} + +/** + * irdma_setup_pbles - copy user pg address to pble's + * @rf: RDMA PCI function + * @iwmr: mr pointer for this memory registration + * @use_pbles: flag if to use pble's + */ +static int irdma_setup_pbles(struct irdma_pci_f *rf, + struct irdma_mr *iwmr, + bool use_pbles) +{ + struct irdma_pbl *iwpbl = &iwmr->iwpbl; + struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; + struct irdma_pble_info *pinfo; + u64 *pbl; + enum irdma_status_code status; + enum irdma_pble_level level = PBLE_LEVEL_1; + + if (use_pbles) { + status = irdma_get_pble(rf->pble_rsrc, palloc, iwmr->page_cnt, + false); + if (status) + return -ENOMEM; + + iwpbl->pbl_allocated = true; + level = palloc->level; + pinfo = (level == PBLE_LEVEL_1) ? + &palloc->level1 : palloc->level2.leaf; + pbl = (u64 *)pinfo->addr; + } else { + pbl = iwmr->pgaddrmem; + } + + irdma_copy_user_pgaddrs(iwmr, pbl, level); + + if (use_pbles) + iwmr->pgaddrmem[0] = *pbl; + + return 0; +} + +/** + * irdma_handle_q_mem - handle memory for qp and cq + * @iwdev: iwarp device + * @req: information for q memory management + * @iwpbl: pble struct + * @use_pbles: flag to use pble + */ +static int irdma_handle_q_mem(struct irdma_device *iwdev, + struct irdma_mem_reg_req *req, + struct irdma_pbl *iwpbl, + bool use_pbles) +{ + struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; + struct irdma_mr *iwmr = iwpbl->iwmr; + struct irdma_qp_mr *qpmr = &iwpbl->qp_mr; + struct irdma_cq_mr *cqmr = &iwpbl->cq_mr; + struct irdma_hmc_pble *hmc_p; + u64 *arr = iwmr->pgaddrmem; + u32 pg_size; + int err; + int total; + bool ret = true; + + total = req->sq_pages + req->rq_pages + req->cq_pages; + pg_size = iwmr->page_size; + err = irdma_setup_pbles(iwdev->rf, iwmr, use_pbles); + if (err) + return err; + + if (use_pbles && palloc->level != PBLE_LEVEL_1) { + irdma_free_pble(iwdev->rf->pble_rsrc, palloc); + iwpbl->pbl_allocated = false; + return -ENOMEM; + } + + if (use_pbles) + arr = (u64 *)palloc->level1.addr; + + if (iwmr->type == IW_MEMREG_TYPE_QP) { + hmc_p = &qpmr->sq_pbl; + qpmr->shadow = (dma_addr_t)arr[total]; + + if (use_pbles) { + ret = irdma_check_mem_contiguous(arr, + req->sq_pages, + pg_size); + if (ret) + ret = irdma_check_mem_contiguous(&arr[req->sq_pages], + req->rq_pages, + pg_size); + } + + if (!ret) { + hmc_p->idx = palloc->level1.idx; + hmc_p = &qpmr->rq_pbl; + hmc_p->idx = palloc->level1.idx + req->sq_pages; + } else { + hmc_p->addr = arr[0]; + hmc_p = &qpmr->rq_pbl; + hmc_p->addr = arr[req->sq_pages]; + } + } else { /* CQ */ + hmc_p = &cqmr->cq_pbl; + cqmr->shadow = (dma_addr_t)arr[total]; + + if (use_pbles) + ret = irdma_check_mem_contiguous(arr, + req->cq_pages, + pg_size); + + if (!ret) + hmc_p->idx = palloc->level1.idx; + else + hmc_p->addr = arr[0]; + } + + if (use_pbles && ret) { + irdma_free_pble(iwdev->rf->pble_rsrc, palloc); + iwpbl->pbl_allocated = false; + } + + return err; +} + +/** + * irdma_hw_alloc_mw - create the hw memory window + * @rf: RDMA PCI function + * @iwmr: pointer to memory window info + */ +static int irdma_hw_alloc_mw(struct irdma_pci_f *rf, + struct irdma_mr *iwmr) +{ + struct irdma_mw_alloc_info *info; + struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd); + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + + cqp_request = irdma_get_cqp_request(&rf->cqp, true); + if (!cqp_request) + return -ENOMEM; + + cqp_info = &cqp_request->info; + info = &cqp_info->in.u.mw_alloc.info; + memset(info, 0, sizeof(*info)); + if (iwmr->ibmw.type == IB_MW_TYPE_1) + info->mw_wide = true; + + info->page_size = PAGE_SIZE; + info->mw_stag_index = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S; + info->pd_id = iwpd->sc_pd.pd_id; + info->remote_access = true; + cqp_info->cqp_cmd = IRDMA_OP_MW_ALLOC; + cqp_info->post_sq = 1; + cqp_info->in.u.mw_alloc.dev = &rf->sc_dev; + cqp_info->in.u.mw_alloc.scratch = (uintptr_t)cqp_request; + if (irdma_handle_cqp_op(rf, cqp_request)) { + irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR, "CQP-OP MR Reg fail"); + return -ENOMEM; + } + + return 0; +} + +/** + * irdma_alloc_mw + * @pd: Protection domain + * @type: Window type + * @udata: user data pointer + */ +static struct ib_mw *irdma_alloc_mw(struct ib_pd *pd, + enum ib_mw_type type, + struct ib_udata *udata) +{ + struct irdma_pd *iwpd = to_iwpd(pd); + struct irdma_device *iwdev = to_iwdev(pd->device); + struct irdma_mr *iwmr; + int err_code; + u32 stag; + + iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); + if (!iwmr) + return ERR_PTR(-ENOMEM); + + stag = irdma_create_stag(iwdev); + if (!stag) { + err_code = -ENOMEM; + goto err; + } + + iwmr->stag = stag; + iwmr->ibmw.rkey = stag; + iwmr->ibmw.pd = pd; + iwmr->ibmw.type = type; + iwmr->ibmw.device = pd->device; + iwmr->type = IW_MEMREG_TYPE_MW; + + err_code = irdma_hw_alloc_mw(iwdev->rf, iwmr); + if (err_code) + goto err1; + + irdma_add_pdusecount(iwpd); + + return &iwmr->ibmw; + +err1: + irdma_free_stag(iwdev, stag); +err: + kfree(iwmr); + + return ERR_PTR(err_code); +} + +/** + * irdma_dealloc_mw + */ +static int irdma_dealloc_mw(struct ib_mw *ibmw) +{ + struct ib_pd *ibpd = ibmw->pd; + struct irdma_pd *iwpd = to_iwpd(ibpd); + struct irdma_mr *iwmr = to_iwmr((struct ib_mr *)ibmw); + struct irdma_device *iwdev = to_iwdev(ibmw->device); + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + struct irdma_dealloc_stag_info *info; + + cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true); + if (!cqp_request) + return -ENOMEM; + + cqp_info = &cqp_request->info; + info = &cqp_info->in.u.dealloc_stag.info; + memset(info, 0, sizeof(*info)); + info->pd_id = iwpd->sc_pd.pd_id & 0x00007fff; + info->stag_idx = RS_64_1(ibmw->rkey, IRDMA_CQPSQ_STAG_IDX_S); + info->mr = false; + cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG; + cqp_info->post_sq = 1; + cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev; + cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request; + if (irdma_handle_cqp_op(iwdev->rf, cqp_request)) + irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_ERR, + "CQP-OP dealloc MW failed for stag_idx = 0x%x\n", + info->stag_idx); + irdma_rem_pdusecount(iwpd, iwdev); + irdma_free_stag(iwdev, iwmr->stag); + kfree(iwmr); + + return 0; +} + +/** + * irdma_hw_alloc_stag - cqp command to allocate stag + * @iwdev: iwarp device + * @iwmr: iwarp mr pointer + */ +static int irdma_hw_alloc_stag(struct irdma_device *iwdev, + struct irdma_mr *iwmr) +{ + struct irdma_allocate_stag_info *info; + struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd); + enum irdma_status_code status; + int err = 0; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + + cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true); + if (!cqp_request) + return -ENOMEM; + + cqp_info = &cqp_request->info; + info = &cqp_info->in.u.alloc_stag.info; + memset(info, 0, sizeof(*info)); + info->page_size = PAGE_SIZE; + info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S; + info->pd_id = iwpd->sc_pd.pd_id; + info->total_len = iwmr->len; + info->remote_access = true; + cqp_info->cqp_cmd = IRDMA_OP_ALLOC_STAG; + cqp_info->post_sq = 1; + cqp_info->in.u.alloc_stag.dev = &iwdev->rf->sc_dev; + cqp_info->in.u.alloc_stag.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(iwdev->rf, cqp_request); + if (status) { + err = -ENOMEM; + irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_ERR, + "CQP-OP MR Reg fail"); + } + + return err; +} + +/** + * irdma_alloc_mr - register stag for fast memory registration + * @pd: ibpd pointer + * @mr_type: memory for stag registrion + * @max_num_sg: man number of pages + */ +static struct ib_mr *irdma_alloc_mr(struct ib_pd *pd, + enum ib_mr_type mr_type, + u32 max_num_sg) +{ + struct irdma_pd *iwpd = to_iwpd(pd); + struct irdma_device *iwdev = to_iwdev(pd->device); + struct irdma_pble_alloc *palloc; + struct irdma_pbl *iwpbl; + struct irdma_mr *iwmr; + enum irdma_status_code status; + u32 stag; + int err_code = -ENOMEM; + + iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); + if (!iwmr) + return ERR_PTR(-ENOMEM); + + stag = irdma_create_stag(iwdev); + if (!stag) { + err_code = -ENOMEM; + goto err; + } + + iwmr->stag = stag; + iwmr->ibmr.rkey = stag; + iwmr->ibmr.lkey = stag; + iwmr->ibmr.pd = pd; + iwmr->ibmr.device = pd->device; + iwpbl = &iwmr->iwpbl; + iwpbl->iwmr = iwmr; + iwmr->type = IW_MEMREG_TYPE_MEM; + palloc = &iwpbl->pble_alloc; + iwmr->page_cnt = max_num_sg; + status = irdma_get_pble(iwdev->rf->pble_rsrc, palloc, iwmr->page_cnt, + true); + if (status) + goto err1; + + err_code = irdma_hw_alloc_stag(iwdev, iwmr); + if (err_code) + goto err2; + + iwpbl->pbl_allocated = true; + irdma_add_pdusecount(iwpd); + + return &iwmr->ibmr; +err2: + irdma_free_pble(iwdev->rf->pble_rsrc, palloc); +err1: + irdma_free_stag(iwdev, stag); +err: + kfree(iwmr); + + return ERR_PTR(err_code); +} + +/** + * irdma_set_page - populate pbl list for fmr + * @ibmr: ib mem to access iwarp mr pointer + * @addr: page dma address fro pbl list + */ +static int irdma_set_page(struct ib_mr *ibmr, + u64 addr) +{ + struct irdma_mr *iwmr = to_iwmr(ibmr); + struct irdma_pbl *iwpbl = &iwmr->iwpbl; + struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; + u64 *pbl; + + if (unlikely(iwmr->npages == iwmr->page_cnt)) + return -ENOMEM; + + pbl = (u64 *)palloc->level1.addr; + pbl[iwmr->npages++] = addr; + + return 0; +} + +/** + * irdma_map_mr_sg - map of sg list for fmr + * @ibmr: ib mem to access iwarp mr pointer + * @sg: scatter gather list for fmr + * @sg_nents: number of sg pages + */ +static int irdma_map_mr_sg(struct ib_mr *ibmr, + struct scatterlist *sg, + int sg_nents, + unsigned int *sg_offset) +{ + struct irdma_mr *iwmr = to_iwmr(ibmr); + + iwmr->npages = 0; + + return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, irdma_set_page); +} + +/** + * irdma_drain_sq - drain the send queue + * @ibqp: ib qp pointer + */ +static void irdma_drain_sq(struct ib_qp *ibqp) +{ + struct irdma_qp *iwqp = to_iwqp(ibqp); + struct irdma_sc_qp *qp = &iwqp->sc_qp; + + if (IRDMA_RING_MORE_WORK(qp->qp_uk.sq_ring)) + wait_for_completion(&iwqp->sq_drained); +} + +/** + * irdma_drain_rq - drain the receive queue + * @ibqp: ib qp pointer + */ +static void irdma_drain_rq(struct ib_qp *ibqp) +{ + struct irdma_qp *iwqp = to_iwqp(ibqp); + struct irdma_sc_qp *qp = &iwqp->sc_qp; + + if (IRDMA_RING_MORE_WORK(qp->qp_uk.rq_ring)) + wait_for_completion(&iwqp->rq_drained); +} + +/** + * irdma_hwreg_mr - send cqp command for memory registration + * @iwdev: iwarp device + * @iwmr: iwarp mr pointer + * @access: access for MR + */ +static int irdma_hwreg_mr(struct irdma_device *iwdev, + struct irdma_mr *iwmr, + u16 access) +{ + struct irdma_pbl *iwpbl = &iwmr->iwpbl; + struct irdma_reg_ns_stag_info *stag_info; + struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd); + struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; + enum irdma_status_code status; + int err = 0; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + + cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true); + if (!cqp_request) + return -ENOMEM; + + cqp_info = &cqp_request->info; + stag_info = &cqp_info->in.u.mr_reg_non_shared.info; + memset(stag_info, 0, sizeof(*stag_info)); + stag_info->va = (void *)(unsigned long)iwpbl->user_base; + stag_info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S; + stag_info->stag_key = (u8)iwmr->stag; + stag_info->total_len = iwmr->len; + stag_info->access_rights = access; + stag_info->pd_id = iwpd->sc_pd.pd_id; + stag_info->addr_type = IRDMA_ADDR_TYPE_VA_BASED; + stag_info->page_size = iwmr->page_size; + + if (iwpbl->pbl_allocated) { + if (palloc->level == PBLE_LEVEL_1) { + stag_info->first_pm_pbl_index = palloc->level1.idx; + stag_info->chunk_size = 1; + } else { + stag_info->first_pm_pbl_index = palloc->level2.root.idx; + stag_info->chunk_size = 3; + } + } else { + stag_info->reg_addr_pa = iwmr->pgaddrmem[0]; + } + + cqp_info->cqp_cmd = IRDMA_OP_MR_REG_NON_SHARED; + cqp_info->post_sq = 1; + cqp_info->in.u.mr_reg_non_shared.dev = &iwdev->rf->sc_dev; + cqp_info->in.u.mr_reg_non_shared.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(iwdev->rf, cqp_request); + if (status) { + err = -ENOMEM; + irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_ERR, + "CQP-OP MR Reg fail"); + } + + return err; +} + +/** + * irdma_reg_user_mr - Register a user memory region + * @pd: ptr of pd + * @start: virtual start address + * @length: length of mr + * @virt: virtual address + * @acc: access of mr + * @udata: user data + */ +static struct ib_mr *irdma_reg_user_mr(struct ib_pd *pd, + u64 start, + u64 len, + u64 virt, + int acc, + struct ib_udata *udata) +{ + struct irdma_pd *iwpd = to_iwpd(pd); + struct irdma_device *iwdev = to_iwdev(pd->device); + struct irdma_ucontext *ucontext; + struct irdma_pble_alloc *palloc; + struct irdma_pbl *iwpbl; + struct irdma_mr *iwmr; + struct ib_umem *region; + struct irdma_mem_reg_req req; + u64 pbl_depth = 0; + u32 stag = 0; + u16 access; + u64 region_len; + bool use_pbles = false; + unsigned long flags; + int err = -ENOSYS; + int ret, pg_shift; + + if (iwdev->closing) + return ERR_PTR(-ENODEV); + + if (len > IRDMA_MAX_MR_SIZE) + return ERR_PTR(-EINVAL); + + region = ib_umem_get(udata, start, len, acc, 0); + if (IS_ERR(region)) + return (struct ib_mr *)region; + + if (ib_copy_from_udata(&req, udata, sizeof(req))) { + ib_umem_release(region); + return ERR_PTR(-EFAULT); + } + + iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); + if (!iwmr) { + ib_umem_release(region); + return ERR_PTR(-ENOMEM); + } + + iwpbl = &iwmr->iwpbl; + iwpbl->iwmr = iwmr; + iwmr->region = region; + iwmr->ibmr.pd = pd; + iwmr->ibmr.device = pd->device; + ucontext = to_ucontext(pd->uobject->context); + iwmr->page_size = PAGE_SIZE; + iwmr->page_msk = PAGE_MASK; + + region_len = region->length + (start & (iwmr->page_size - 1)); + pg_shift = ffs(iwmr->page_size) - 1; + pbl_depth = region_len >> pg_shift; + pbl_depth += (region_len & (iwmr->page_size - 1)) ? 1 : 0; + iwmr->len = region->length; + iwpbl->user_base = virt; + palloc = &iwpbl->pble_alloc; + iwmr->type = req.reg_type; + iwmr->page_cnt = (u32)pbl_depth; + + switch (req.reg_type) { + case IW_MEMREG_TYPE_QP: + use_pbles = ((req.sq_pages + req.rq_pages) > 2); + err = irdma_handle_q_mem(iwdev, &req, iwpbl, use_pbles); + if (err) + goto error; + + spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); + list_add_tail(&iwpbl->list, &ucontext->qp_reg_mem_list); + iwpbl->on_list = true; + spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); + break; + case IW_MEMREG_TYPE_CQ: + use_pbles = (req.cq_pages > 1); + err = irdma_handle_q_mem(iwdev, &req, iwpbl, use_pbles); + if (err) + goto error; + + spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); + list_add_tail(&iwpbl->list, &ucontext->cq_reg_mem_list); + iwpbl->on_list = true; + spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); + break; + case IW_MEMREG_TYPE_MEM: + use_pbles = (iwmr->page_cnt != 1); + access = IRDMA_ACCESS_FLAGS_LOCALREAD; + + err = irdma_setup_pbles(iwdev->rf, iwmr, use_pbles); + if (err) + goto error; + + if (use_pbles) { + ret = irdma_check_mr_contiguous(palloc, + iwmr->page_size); + if (ret) { + irdma_free_pble(iwdev->rf->pble_rsrc, palloc); + iwpbl->pbl_allocated = false; + } + } + + access |= irdma_get_user_access(acc); + stag = irdma_create_stag(iwdev); + if (!stag) { + err = -ENOMEM; + goto error; + } + + iwmr->stag = stag; + iwmr->ibmr.rkey = stag; + iwmr->ibmr.lkey = stag; + err = irdma_hwreg_mr(iwdev, iwmr, access); + if (err) { + irdma_free_stag(iwdev, stag); + goto error; + } + + break; + default: + goto error; + } + + iwmr->type = req.reg_type; + if (req.reg_type == IW_MEMREG_TYPE_MEM) + irdma_add_pdusecount(iwpd); + + return &iwmr->ibmr; + +error: + if (palloc->level != PBLE_LEVEL_0 && iwpbl->pbl_allocated) + irdma_free_pble(iwdev->rf->pble_rsrc, palloc); + ib_umem_release(region); + kfree(iwmr); + + return ERR_PTR(err); +} + +/** + * irdma_reg_phys_mr - register kernel physical memory + * @pd: ibpd pointer + * @addr: physical address of memory to register + * @size: size of memory to register + * @acc: Access rights + * @iova_start: start of virtual address for physical buffers + */ +struct ib_mr *irdma_reg_phys_mr(struct ib_pd *pd, + u64 addr, + u64 size, + int acc, + u64 *iova_start) +{ + struct irdma_pd *iwpd = to_iwpd(pd); + struct irdma_device *iwdev = to_iwdev(pd->device); + struct irdma_pbl *iwpbl; + struct irdma_mr *iwmr; + enum irdma_status_code status; + u32 stag; + u16 access = IRDMA_ACCESS_FLAGS_LOCALREAD; + int ret; + + iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); + if (!iwmr) + return ERR_PTR(-ENOMEM); + + iwmr->ibmr.pd = pd; + iwmr->ibmr.device = pd->device; + iwpbl = &iwmr->iwpbl; + iwpbl->iwmr = iwmr; + iwmr->type = IW_MEMREG_TYPE_MEM; + iwpbl->user_base = *iova_start; + stag = irdma_create_stag(iwdev); + if (!stag) { + ret = -ENOMEM; + goto err; + } + + access |= irdma_get_user_access(acc); + iwmr->stag = stag; + iwmr->ibmr.rkey = stag; + iwmr->ibmr.lkey = stag; + iwmr->page_cnt = 1; + iwmr->pgaddrmem[0] = addr; + iwmr->len = size; + status = irdma_hwreg_mr(iwdev, iwmr, access); + if (status) { + irdma_free_stag(iwdev, stag); + ret = -ENOMEM; + goto err; + } + + irdma_add_pdusecount(iwpd); + return &iwmr->ibmr; + + err: + kfree(iwmr); + + return ERR_PTR(ret); +} + +/** + * irdma_get_dma_mr - register physical mem + * @pd: ptr of pd + * @acc: access for memory + */ +static struct ib_mr *irdma_get_dma_mr(struct ib_pd *pd, int acc) +{ + u64 kva = 0; + + return irdma_reg_phys_mr(pd, 0, 0, acc, &kva); +} + +/** + * irdma_del_mem_list - Deleting pbl list entries for CQ/QP + * @iwmr: iwmr for IB's user page addresses + * @ucontext: ptr to user context + */ +static void irdma_del_memlist(struct irdma_mr *iwmr, + struct irdma_ucontext *ucontext) +{ + struct irdma_pbl *iwpbl = &iwmr->iwpbl; + unsigned long flags; + + switch (iwmr->type) { + case IW_MEMREG_TYPE_CQ: + spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); + if (iwpbl->on_list) { + iwpbl->on_list = false; + list_del(&iwpbl->list); + } + spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); + break; + case IW_MEMREG_TYPE_QP: + spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); + if (iwpbl->on_list) { + iwpbl->on_list = false; + list_del(&iwpbl->list); + } + spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); + break; + default: + break; + } +} + +/** + * irdma_dereg_mr - deregister mr + * @ib_mr: mr ptr for dereg + */ +static int irdma_dereg_mr(struct ib_mr *ib_mr) +{ + struct ib_pd *ibpd = ib_mr->pd; + struct irdma_pd *iwpd = to_iwpd(ibpd); + struct irdma_mr *iwmr = to_iwmr(ib_mr); + struct irdma_device *iwdev = to_iwdev(ib_mr->device); + enum irdma_status_code status; + struct irdma_dealloc_stag_info *info; + struct irdma_pbl *iwpbl = &iwmr->iwpbl; + struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + u32 stag_idx; + + if (iwmr->type != IW_MEMREG_TYPE_MEM) { + if (iwmr->region) { + struct irdma_ucontext *ucontext; + + ucontext = to_ucontext(ibpd->uobject->context); + irdma_del_memlist(iwmr, ucontext); + } + goto done; + } + + cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true); + if (!cqp_request) + return -ENOMEM; + + cqp_info = &cqp_request->info; + info = &cqp_info->in.u.dealloc_stag.info; + memset(info, 0, sizeof(*info)); + info->pd_id = iwpd->sc_pd.pd_id & 0x00007fff; + info->stag_idx = RS_64_1(ib_mr->rkey, IRDMA_CQPSQ_STAG_IDX_S); + stag_idx = info->stag_idx; + info->mr = true; + if (iwpbl->pbl_allocated) + info->dealloc_pbl = true; + + cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG; + cqp_info->post_sq = 1; + cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev; + cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request; + status = irdma_handle_cqp_op(iwdev->rf, cqp_request); + if (status) + irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_ERR, + "CQP-OP dealloc failed for stag_idx = 0x%x\n", + stag_idx); + irdma_rem_pdusecount(iwpd, iwdev); + irdma_free_stag(iwdev, iwmr->stag); +done: + if (iwpbl->pbl_allocated) + irdma_free_pble(iwdev->rf->pble_rsrc, palloc); + if (iwmr->region) + ib_umem_release(iwmr->region); + kfree(iwmr); + + return 0; +} + +/** + * hw_rev_show + */ +static ssize_t hw_rev_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct irdma_ib_device *iwibdev = container_of(dev, + struct irdma_ib_device, + ibdev.dev); + u32 hw_rev = iwibdev->iwdev->rf->sc_dev.pci_rev; + + return sprintf(buf, "%x\n", hw_rev); +} + +/** + * hca_type_show + */ +static ssize_t hca_type_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "IRDMA\n"); +} + +/** + * board_id_show + */ +static ssize_t board_id_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%.*s\n", 32, "IRDMA Board ID"); +} + +static DEVICE_ATTR_RO(hw_rev); +static DEVICE_ATTR_RO(hca_type); +static DEVICE_ATTR_RO(board_id); + +static struct attribute *irdma_dev_attributes[] = { + &dev_attr_hw_rev.attr, + &dev_attr_hca_type.attr, + &dev_attr_board_id.attr, + NULL +}; + +static const struct attribute_group irdma_attr_group = { + .attrs = irdma_dev_attributes, +}; + +/** + * irdma_copy_sg_list - copy sg list for qp + * @sg_list: copied into sg_list + * @sgl: copy from sgl + * @num_sges: count of sg entries + */ +static void irdma_copy_sg_list(struct irdma_sge *sg_list, + struct ib_sge *sgl, + int num_sges) +{ + unsigned int i; + + for (i = 0; (i < num_sges) && (i < IRDMA_MAX_WQ_FRAGMENT_COUNT); i++) { + sg_list[i].tag_off = sgl[i].addr; + sg_list[i].len = sgl[i].length; + sg_list[i].stag = sgl[i].lkey; + } +} + +/** + * irdma_post_send - kernel application wr + * @ibqp: qp ptr for wr + * @ib_wr: work request ptr + * @bad_wr: return of bad wr if err + */ +static int irdma_post_send(struct ib_qp *ibqp, + const struct ib_send_wr *ib_wr, + const struct ib_send_wr **bad_wr) +{ + struct irdma_qp *iwqp; + struct irdma_qp_uk *ukqp; + struct irdma_sc_dev *dev; + struct irdma_post_sq_info info; + enum irdma_status_code ret; + int err = 0; + unsigned long flags; + bool inv_stag; + struct irdma_ah *ah; + bool reflush = false; + + iwqp = (struct irdma_qp *)ibqp; + ukqp = &iwqp->sc_qp.qp_uk; + dev = &iwqp->iwdev->rf->sc_dev; + + spin_lock_irqsave(&iwqp->lock, flags); + if (iwqp->flush_issued && ukqp->sq_flush_complete) + reflush = true; + + while (ib_wr) { + memset(&info, 0, sizeof(info)); + inv_stag = false; + info.wr_id = (u64)(ib_wr->wr_id); + if ((ib_wr->send_flags & IB_SEND_SIGNALED) || iwqp->sig_all) + info.signaled = true; + if (ib_wr->send_flags & IB_SEND_FENCE) + info.read_fence = true; + switch (ib_wr->opcode) { + case IB_WR_SEND_WITH_IMM: + if (ukqp->qp_caps & IRDMA_SEND_WITH_IMM) { + info.imm_data_valid = true; + info.imm_data = ntohl(ib_wr->ex.imm_data); + } else { + err = -EINVAL; + break; + } + /* fall-through */ + case IB_WR_SEND: + /* fall-through */ + case IB_WR_SEND_WITH_INV: + if (ib_wr->opcode == IB_WR_SEND || + ib_wr->opcode == IB_WR_SEND_WITH_IMM) { + if (ib_wr->send_flags & IB_SEND_SOLICITED) + info.op_type = IRDMA_OP_TYPE_SEND_SOL; + else + info.op_type = IRDMA_OP_TYPE_SEND; + } else { + if (ib_wr->send_flags & IB_SEND_SOLICITED) + info.op_type = IRDMA_OP_TYPE_SEND_SOL_INV; + else + info.op_type = IRDMA_OP_TYPE_SEND_INV; + info.stag_to_inv = ib_wr->ex.invalidate_rkey; + } + + if (ib_wr->send_flags & IB_SEND_INLINE) { + info.op.inline_send.data = (void *)(unsigned long) + ib_wr->sg_list[0].addr; + info.op.inline_send.len = ib_wr->sg_list[0].length; + if (iwqp->ibqp.qp_type == IB_QPT_UD || + iwqp->ibqp.qp_type == IB_QPT_GSI) { + ah = to_iwah(ud_wr(ib_wr)->ah); + info.op.inline_send.ah_id = ah->sc_ah.ah_info.ah_idx; + info.op.inline_send.qkey = ud_wr(ib_wr)->remote_qkey; + info.op.inline_send.dest_qp = ud_wr(ib_wr)->remote_qpn; + } + ret = ukqp->qp_ops.iw_inline_send(ukqp, &info, false); + } else { + info.op.send.num_sges = ib_wr->num_sge; + info.op.send.sg_list = (struct irdma_sge *) + ib_wr->sg_list; + if (iwqp->ibqp.qp_type == IB_QPT_UD || + iwqp->ibqp.qp_type == IB_QPT_GSI) { + ah = to_iwah(ud_wr(ib_wr)->ah); + info.op.send.ah_id = ah->sc_ah.ah_info.ah_idx; + info.op.send.qkey = ud_wr(ib_wr)->remote_qkey; + info.op.send.dest_qp = ud_wr(ib_wr)->remote_qpn; + } + ret = ukqp->qp_ops.iw_send(ukqp, &info, false); + } + + if (ret) { + if (ret == IRDMA_ERR_QP_TOOMANY_WRS_POSTED) + err = -ENOMEM; + else + err = -EINVAL; + } + break; + case IB_WR_RDMA_WRITE_WITH_IMM: + if (ukqp->qp_caps & IRDMA_WRITE_WITH_IMM) { + info.imm_data_valid = true; + info.imm_data = ntohl(ib_wr->ex.imm_data); + } else { + err = -EINVAL; + break; + } + /* fall-through */ + case IB_WR_RDMA_WRITE: + if (ib_wr->send_flags & IB_SEND_SOLICITED) + info.op_type = IRDMA_OP_TYPE_RDMA_WRITE_SOL; + else + info.op_type = IRDMA_OP_TYPE_RDMA_WRITE; + + if (ib_wr->send_flags & IB_SEND_INLINE) { + info.op.inline_rdma_write.data = (void *)ib_wr->sg_list[0].addr; + info.op.inline_rdma_write.len = ib_wr->sg_list[0].length; + info.op.inline_rdma_write.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr; + info.op.inline_rdma_write.rem_addr.stag = rdma_wr(ib_wr)->rkey; + ret = ukqp->qp_ops.iw_inline_rdma_write(ukqp, &info, false); + } else { + info.op.rdma_write.lo_sg_list = (void *)ib_wr->sg_list; + info.op.rdma_write.num_lo_sges = ib_wr->num_sge; + info.op.rdma_write.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr; + info.op.rdma_write.rem_addr.stag = rdma_wr(ib_wr)->rkey; + ret = ukqp->qp_ops.iw_rdma_write(ukqp, &info, false); + } + + if (ret) { + if (ret == IRDMA_ERR_QP_TOOMANY_WRS_POSTED) + err = -ENOMEM; + else + err = -EINVAL; + } + break; + case IB_WR_RDMA_READ_WITH_INV: + inv_stag = true; + /* fall-through*/ + case IB_WR_RDMA_READ: + if (ib_wr->num_sge > dev->hw_attrs.max_hw_read_sges) { + err = -EINVAL; + break; + } + info.op_type = IRDMA_OP_TYPE_RDMA_READ; + info.op.rdma_read.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr; + info.op.rdma_read.rem_addr.stag = rdma_wr(ib_wr)->rkey; + info.op.rdma_read.lo_sg_list = (void *)ib_wr->sg_list; + info.op.rdma_read.num_lo_sges = ib_wr->num_sge; + + ret = ukqp->qp_ops.iw_rdma_read(ukqp, &info, inv_stag, + false); + if (ret) { + if (ret == IRDMA_ERR_QP_TOOMANY_WRS_POSTED) + err = -ENOMEM; + else + err = -EINVAL; + } + break; + case IB_WR_LOCAL_INV: + info.op_type = IRDMA_OP_TYPE_INV_STAG; + info.op.inv_local_stag.target_stag = ib_wr->ex.invalidate_rkey; + ret = ukqp->qp_ops.iw_stag_local_invalidate(ukqp, &info, true); + if (ret) + err = -ENOMEM; + break; + case IB_WR_REG_MR: + { + struct irdma_mr *iwmr = to_iwmr(reg_wr(ib_wr)->mr); + int flags = reg_wr(ib_wr)->access; + struct irdma_pble_alloc *palloc = &iwmr->iwpbl.pble_alloc; + struct irdma_fast_reg_stag_info info = {}; + + info.access_rights = IRDMA_ACCESS_FLAGS_LOCALREAD; + info.access_rights |= irdma_get_user_access(flags); + info.stag_key = reg_wr(ib_wr)->key & 0xff; + info.stag_idx = reg_wr(ib_wr)->key >> 8; + info.page_size = reg_wr(ib_wr)->mr->page_size; + info.wr_id = ib_wr->wr_id; + info.addr_type = IRDMA_ADDR_TYPE_VA_BASED; + info.va = (void *)(uintptr_t)iwmr->ibmr.iova; + info.total_len = iwmr->ibmr.length; + info.reg_addr_pa = *(u64 *)palloc->level1.addr; + info.first_pm_pbl_index = palloc->level1.idx; + info.local_fence = ib_wr->send_flags & IB_SEND_FENCE; + info.signaled = ib_wr->send_flags & IB_SEND_SIGNALED; + if (iwmr->npages > IRDMA_MIN_PAGES_PER_FMR) + info.chunk_size = 1; + ret = dev->iw_priv_qp_ops->iw_mr_fast_register(&iwqp->sc_qp, + &info, + true); + if (ret) + err = -ENOMEM; + break; + } + default: + err = -EINVAL; + irdma_debug(dev, IRDMA_DEBUG_ERR, + " upost_send bad opcode = 0x%x\n", + ib_wr->opcode); + break; + } + + if (err) + break; + ib_wr = ib_wr->next; + } + + if (!iwqp->flush_issued && + iwqp->hw_iwarp_state <= (u32)IRDMA_QP_STATE_RTS) { + ukqp->qp_ops.iw_qp_post_wr(ukqp); + spin_unlock_irqrestore(&iwqp->lock, flags); + } else if (reflush) { + struct irdma_qp_flush_info flush_info = {}; + struct irdma_pci_f *rf = iwqp->iwdev->rf; + + iwqp->sc_qp.flush_sq = false; + iwqp->sc_qp.term_flags = 0; + spin_unlock_irqrestore(&iwqp->lock, flags); + ukqp->sq_flush_complete = false; + flush_info.sq = true; + flush_info.sq_major_code = IRDMA_FLUSH_MAJOR_ERR; + flush_info.sq_minor_code = IRDMA_FLUSH_MAJOR_ERR; + irdma_hw_flush_wqes(rf, &iwqp->sc_qp, &flush_info, false); + } else { + spin_unlock_irqrestore(&iwqp->lock, flags); + } + if (err) + *bad_wr = ib_wr; + + return err; +} + +/** + * irdma_post_recv - post receive wr for kernel application + * @ibqp: ib qp pointer + * @ib_wr: work request for receive + * @bad_wr: bad wr caused an error + */ +static int irdma_post_recv(struct ib_qp *ibqp, + const struct ib_recv_wr *ib_wr, + const struct ib_recv_wr **bad_wr) +{ + struct irdma_qp *iwqp; + struct irdma_qp_uk *ukqp; + struct irdma_post_rq_info post_recv = {}; + struct irdma_sge sg_list[IRDMA_MAX_WQ_FRAGMENT_COUNT]; + enum irdma_status_code ret = 0; + unsigned long flags; + int err = 0; + bool reflush = false; + + iwqp = (struct irdma_qp *)ibqp; + ukqp = &iwqp->sc_qp.qp_uk; + + spin_lock_irqsave(&iwqp->lock, flags); + if (iwqp->flush_issued && ukqp->rq_flush_complete) + reflush = true; + + while (ib_wr) { + post_recv.num_sges = ib_wr->num_sge; + post_recv.wr_id = ib_wr->wr_id; + irdma_copy_sg_list(sg_list, ib_wr->sg_list, ib_wr->num_sge); + post_recv.sg_list = sg_list; + ret = ukqp->qp_ops.iw_post_receive(ukqp, &post_recv); + if (ret) { + irdma_debug(&iwqp->iwdev->rf->sc_dev, IRDMA_DEBUG_ERR, + "post_recv err %d\n", ret); + if (ret == IRDMA_ERR_QP_TOOMANY_WRS_POSTED) + err = -ENOMEM; + else + err = -EINVAL; + goto out; + } + + ib_wr = ib_wr->next; + } + +out: + if (reflush) { + struct irdma_qp_flush_info flush_info = { }; + struct irdma_pci_f *rf = iwqp->iwdev->rf; + + iwqp->sc_qp.flush_rq = false; + spin_unlock_irqrestore(&iwqp->lock, flags); + ukqp->rq_flush_complete = false; + flush_info.rq = true; + irdma_hw_flush_wqes(rf, &iwqp->sc_qp, &flush_info, false); + } else { + spin_unlock_irqrestore(&iwqp->lock, flags); + } + + if (err) + *bad_wr = ib_wr; + + return err; +} + +/** + * irdma_poll_cq - poll cq for completion (kernel apps) + * @ibcq: cq to poll + * @num_entries: number of entries to poll + * @entry: wr of entry completed + */ +static int irdma_poll_cq(struct ib_cq *ibcq, + int num_entries, + struct ib_wc *entry) +{ + struct irdma_cq *iwcq; + int cqe_count = 0; + struct irdma_cq_poll_info cq_poll_info; + enum irdma_status_code ret; + struct irdma_cq_uk *ukcq; + struct irdma_sc_qp *qp; + struct irdma_qp *iwqp; + unsigned long flags; + + iwcq = (struct irdma_cq *)ibcq; + ukcq = &iwcq->sc_cq.cq_uk; + + spin_lock_irqsave(&iwcq->lock, flags); + while (cqe_count < num_entries) { + ret = ukcq->ops.iw_cq_poll_cmpl(ukcq, &cq_poll_info); + if (ret == IRDMA_ERR_Q_EMPTY) { + break; + } else if (ret == IRDMA_ERR_Q_DESTROYED) { + continue; + } else if (ret) { + if (!cqe_count) + cqe_count = -1; + break; + } + + entry->wc_flags = 0; + entry->wr_id = cq_poll_info.wr_id; + if (cq_poll_info.error) { + if (cq_poll_info.comp_status == IRDMA_COMPL_STATUS_FLUSHED) + entry->status = IB_WC_WR_FLUSH_ERR; + else if (cq_poll_info.comp_status == IRDMA_COMPL_STATUS_INVALID_LEN) + entry->status = IB_WC_LOC_LEN_ERR; + else + entry->status = IB_WC_GENERAL_ERR; + entry->vendor_err = cq_poll_info.major_err << 16 | + cq_poll_info.minor_err; + } else { + entry->status = IB_WC_SUCCESS; + if (cq_poll_info.imm_valid) { + entry->ex.imm_data = + htonl(cq_poll_info.imm_data); + entry->wc_flags |= IB_WC_WITH_IMM; + } + if (cq_poll_info.ud_smac_valid) { + ether_addr_copy(entry->smac, cq_poll_info.ud_smac); + entry->wc_flags |= IB_WC_WITH_SMAC; + } + + if (cq_poll_info.ud_vlan_valid) { + entry->vlan_id = cq_poll_info.ud_vlan; + entry->wc_flags |= IB_WC_WITH_VLAN; + entry->sl = (cq_poll_info.ud_vlan >> 13) & 0x07; + } + } + + switch (cq_poll_info.op_type) { + case IRDMA_OP_TYPE_RDMA_WRITE: + entry->opcode = IB_WC_RDMA_WRITE; + break; + case IRDMA_OP_TYPE_RDMA_READ_INV_STAG: + case IRDMA_OP_TYPE_RDMA_READ: + entry->opcode = IB_WC_RDMA_READ; + break; + case IRDMA_OP_TYPE_SEND_INV: + case IRDMA_OP_TYPE_SEND_SOL: + case IRDMA_OP_TYPE_SEND_SOL_INV: + case IRDMA_OP_TYPE_SEND: + entry->opcode = IB_WC_SEND; + if (cq_poll_info.stag_invalid_set) + entry->ex.invalidate_rkey = cq_poll_info.inv_stag; + break; + case IRDMA_OP_TYPE_REC: + entry->opcode = IB_WC_RECV; + break; + case IRDMA_OP_TYPE_REC_IMM: + entry->opcode = IB_WC_RECV_RDMA_WITH_IMM; + break; + default: + entry->opcode = IB_WC_RECV; + break; + } + + qp = (struct irdma_sc_qp *)cq_poll_info.qp_handle; + entry->qp = (struct ib_qp *)qp->back_qp; + if (qp->qp_type == IRDMA_QP_TYPE_ROCE_UD) { + entry->src_qp = cq_poll_info.ud_src_qpn; + entry->wc_flags |= + (IB_WC_GRH | IB_WC_WITH_NETWORK_HDR_TYPE); + entry->network_hdr_type = + cq_poll_info.ipv4 ? + RDMA_NETWORK_IPV4 : RDMA_NETWORK_IPV6; + } else { + entry->src_qp = cq_poll_info.qp_id; + } + iwqp = (struct irdma_qp *)qp->back_qp; + if (iwqp->iwarp_state > IRDMA_QP_STATE_RTS) { + if (!IRDMA_RING_MORE_WORK(qp->qp_uk.sq_ring)) + complete(&iwqp->sq_drained); + if (!IRDMA_RING_MORE_WORK(qp->qp_uk.rq_ring)) + complete(&iwqp->rq_drained); + } + entry->byte_len = cq_poll_info.bytes_xfered; + entry++; + cqe_count++; + } + spin_unlock_irqrestore(&iwcq->lock, flags); + + return cqe_count; +} + +/** + * irdma_req_notify_cq - arm cq kernel application + * @ibcq: cq to arm + * @notify_flags: notofication flags + */ +static int irdma_req_notify_cq(struct ib_cq *ibcq, + enum ib_cq_notify_flags notify_flags) +{ + struct irdma_cq *iwcq; + struct irdma_cq_uk *ukcq; + unsigned long flags; + enum irdma_cmpl_notify cq_notify = IRDMA_CQ_COMPL_EVENT; + + iwcq = (struct irdma_cq *)ibcq; + ukcq = &iwcq->sc_cq.cq_uk; + if (notify_flags == IB_CQ_SOLICITED) + cq_notify = IRDMA_CQ_COMPL_SOLICITED; + spin_lock_irqsave(&iwcq->lock, flags); + ukcq->ops.iw_cq_request_notification(ukcq, cq_notify); + spin_unlock_irqrestore(&iwcq->lock, flags); + + return 0; +} + +/** + * irdma_port_immutable - return port's immutable data + * @ibdev: ib dev struct + * @port_num: port number + * @immutable: immutable data for the port return + */ +static int irdma_port_immutable(struct ib_device *ibdev, + u8 port_num, + struct ib_port_immutable *immutable) +{ + struct ib_port_attr attr; + int err; + struct irdma_device *iwdev = to_iwdev(ibdev); + + if (iwdev->roce_mode) { + immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; + immutable->max_mad_size = IB_MGMT_MAD_SIZE; + } else { + immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; + } + err = irdma_query_port(ibdev, port_num, &attr); + if (err) + return err; + + immutable->pkey_tbl_len = attr.pkey_tbl_len; + immutable->gid_tbl_len = attr.gid_tbl_len; + + return 0; +} + +static const char * const irdma_hw_stat_names[] = { + /* 32bit names */ + [IRDMA_HW_STAT_INDEX_RXVLANERR] = "rxVlanErrors", + [IRDMA_HW_STAT_INDEX_IP4RXDISCARD] = "ip4InDiscards", + [IRDMA_HW_STAT_INDEX_IP4RXTRUNC] = "ip4InTruncatedPkts", + [IRDMA_HW_STAT_INDEX_IP4TXNOROUTE] = "ip4OutNoRoutes", + [IRDMA_HW_STAT_INDEX_IP6RXDISCARD] = "ip6InDiscards", + [IRDMA_HW_STAT_INDEX_IP6RXTRUNC] = "ip6InTruncatedPkts", + [IRDMA_HW_STAT_INDEX_IP6TXNOROUTE] = "ip6OutNoRoutes", + [IRDMA_HW_STAT_INDEX_TCPRTXSEG] = "tcpRetransSegs", + [IRDMA_HW_STAT_INDEX_TCPRXOPTERR] = "tcpInOptErrors", + [IRDMA_HW_STAT_INDEX_TCPRXPROTOERR] = "tcpInProtoErrors", + [IRDMA_HW_STAT_INDEX_RXRPCNPHANDLED] = "cnpHandled", + [IRDMA_HW_STAT_INDEX_RXRPCNPIGNORED] = "cnpIgnored", + [IRDMA_HW_STAT_INDEX_TXNPCNPSENT] = "cnpSent", + + /* 64bit names */ + [IRDMA_HW_STAT_INDEX_IP4RXOCTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip4InOctets", + [IRDMA_HW_STAT_INDEX_IP4RXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip4InPkts", + [IRDMA_HW_STAT_INDEX_IP4RXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip4InReasmRqd", + [IRDMA_HW_STAT_INDEX_IP4RXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip4InMcastOctets", + [IRDMA_HW_STAT_INDEX_IP4RXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip4InMcastPkts", + [IRDMA_HW_STAT_INDEX_IP4TXOCTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip4OutOctets", + [IRDMA_HW_STAT_INDEX_IP4TXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip4OutPkts", + [IRDMA_HW_STAT_INDEX_IP4TXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip4OutSegRqd", + [IRDMA_HW_STAT_INDEX_IP4TXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip4OutMcastOctets", + [IRDMA_HW_STAT_INDEX_IP4TXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip4OutMcastPkts", + [IRDMA_HW_STAT_INDEX_IP6RXOCTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip6InOctets", + [IRDMA_HW_STAT_INDEX_IP6RXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip6InPkts", + [IRDMA_HW_STAT_INDEX_IP6RXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip6InReasmRqd", + [IRDMA_HW_STAT_INDEX_IP6RXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip6InMcastOctets", + [IRDMA_HW_STAT_INDEX_IP6RXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip6InMcastPkts", + [IRDMA_HW_STAT_INDEX_IP6TXOCTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip6OutOctets", + [IRDMA_HW_STAT_INDEX_IP6TXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip6OutPkts", + [IRDMA_HW_STAT_INDEX_IP6TXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip6OutSegRqd", + [IRDMA_HW_STAT_INDEX_IP6TXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip6OutMcastOctets", + [IRDMA_HW_STAT_INDEX_IP6TXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "ip6OutMcastPkts", + [IRDMA_HW_STAT_INDEX_TCPRXSEGS + IRDMA_HW_STAT_INDEX_MAX_32] = + "tcpInSegs", + [IRDMA_HW_STAT_INDEX_TCPTXSEG + IRDMA_HW_STAT_INDEX_MAX_32] = + "tcpOutSegs", + [IRDMA_HW_STAT_INDEX_RDMARXRDS + IRDMA_HW_STAT_INDEX_MAX_32] = + "iwInRdmaReads", + [IRDMA_HW_STAT_INDEX_RDMARXSNDS + IRDMA_HW_STAT_INDEX_MAX_32] = + "iwInRdmaSends", + [IRDMA_HW_STAT_INDEX_RDMARXWRS + IRDMA_HW_STAT_INDEX_MAX_32] = + "iwInRdmaWrites", + [IRDMA_HW_STAT_INDEX_RDMATXRDS + IRDMA_HW_STAT_INDEX_MAX_32] = + "iwOutRdmaReads", + [IRDMA_HW_STAT_INDEX_RDMATXSNDS + IRDMA_HW_STAT_INDEX_MAX_32] = + "iwOutRdmaSends", + [IRDMA_HW_STAT_INDEX_RDMATXWRS + IRDMA_HW_STAT_INDEX_MAX_32] = + "iwOutRdmaWrites", + [IRDMA_HW_STAT_INDEX_RDMAVBND + IRDMA_HW_STAT_INDEX_MAX_32] = + "iwRdmaBnd", + [IRDMA_HW_STAT_INDEX_RDMAVINV + IRDMA_HW_STAT_INDEX_MAX_32] = + "iwRdmaInv", + [IRDMA_HW_STAT_INDEX_UDPRXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "RxUDP", + [IRDMA_HW_STAT_INDEX_UDPTXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "TxUDP", + [IRDMA_HW_STAT_INDEX_RXNPECNMARKEDPKTS + IRDMA_HW_STAT_INDEX_MAX_32] = + "RxECNMrkd", +}; + +static void irdma_get_dev_fw_str(struct ib_device *dev, + char *str) +{ + struct irdma_device *iwdev = to_iwdev(dev); + + snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u", + FW_MAJOR_VER(&iwdev->rf->sc_dev), + FW_MINOR_VER(&iwdev->rf->sc_dev)); +} + +/** + * irdma_alloc_hw_stats - Allocate a hw stats structure + * @ibdev: device pointer from stack + * @port_num: port number + */ +static struct rdma_hw_stats *irdma_alloc_hw_stats(struct ib_device *ibdev, + u8 port_num) +{ + struct irdma_device *iwdev = to_iwdev(ibdev); + struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; + int num_counters = IRDMA_HW_STAT_INDEX_MAX_32 + + IRDMA_HW_STAT_INDEX_MAX_64; + unsigned long lifespan = RDMA_HW_STATS_DEFAULT_LIFESPAN; + + BUILD_BUG_ON(ARRAY_SIZE(irdma_hw_stat_names) != (IRDMA_HW_STAT_INDEX_MAX_32 + + IRDMA_HW_STAT_INDEX_MAX_64)); + + /* + * PFs get the default update lifespan, but VFs only update once + * per second + */ + if (!dev->is_pf) + lifespan = 1000; + + return rdma_alloc_hw_stats_struct(irdma_hw_stat_names, num_counters, + lifespan); +} + +/** + * irdma_get_hw_stats - Populates the rdma_hw_stats structure + * @ibdev: device pointer from stack + * @stats: stats pointer from stack + * @port_num: port number + * @index: which hw counter the stack is requesting we update + */ +static int irdma_get_hw_stats(struct ib_device *ibdev, + struct rdma_hw_stats *stats, + u8 port_num, + int index) +{ + struct irdma_device *iwdev = to_iwdev(ibdev); + struct irdma_dev_hw_stats *hw_stats = &iwdev->vsi.pestat->hw_stats; + + irdma_cqp_gather_stats_cmd(&iwdev->rf->sc_dev, + iwdev->vsi.pestat, true); + memcpy(&stats->value[0], hw_stats, sizeof(*hw_stats)); + + return stats->num_counters; +} + +/** + * irdma_query_gid - Query port GID + * @ibdev: device pointer from stack + * @port: port number + * @index: Entry index + * @gid: Global ID + */ +static int irdma_query_gid(struct ib_device *ibdev, + u8 port, + int index, + union ib_gid *gid) +{ + struct irdma_device *iwdev = to_iwdev(ibdev); + + memset(gid->raw, 0, sizeof(gid->raw)); + ether_addr_copy(gid->raw, iwdev->netdev->dev_addr); + + return 0; +} + +/** + * irdma_modify_port Modify port properties + * @ibdev: device pointer from stack + * @port: port number + * @port_modify_mask: mask for port modifications + * @props: port properties + */ +static int irdma_modify_port(struct ib_device *ibdev, + u8 port, + int port_modify_mask, + struct ib_port_modify *props) +{ + return 0; +} + +/** + * irdma_query_gid_roce - Query port GID for Roce + * @ibdev: device pointer from stack + * @port: port number + * @index: Entry index + * @gid: Global ID + */ +static int irdma_query_gid_roce(struct ib_device *ibdev, + u8 port, + int index, + union ib_gid *gid) +{ + int ret; + + ret = rdma_query_gid(ibdev, port, index, gid); + if (ret == -EAGAIN) { + memcpy(gid, &zgid, sizeof(*gid)); + return 0; + } + + return ret; +} + +/** + * mcast_list_add - Add a new mcast item to list + * @rf: RDMA PCI function + * @new_elem: pointer to element to add + */ +static void mcast_list_add(struct irdma_pci_f *rf, + struct mc_table_list *new_elem) +{ + list_add(&new_elem->list, &rf->mc_qht_list.list); +} + +/** + * mcast_list_del - Remove an mcast item from list + * @ip_mcast: pointer to mcast IP address + */ +static void mcast_list_del(struct mc_table_list *mc_qht_elem) +{ + if (mc_qht_elem) + list_del(&mc_qht_elem->list); +} + +/** + * irdma_mcast_list_lookup_ip - Search mcast list for address + * @rf: RDMA PCI function + * @ip_mcast: pointer to mcast IP address + */ +static struct mc_table_list *mcast_list_lookup_ip(struct irdma_pci_f *rf, + u32 *ip_mcast) +{ + struct mc_table_list *mc_qht_el; + struct list_head *pos, *q; + + list_for_each_safe(pos, q, &rf->mc_qht_list.list) { + mc_qht_el = list_entry(pos, struct mc_table_list, list); + if (!memcmp(mc_qht_el->mc_info.dest_ip, + ip_mcast, + sizeof(mc_qht_el->mc_info.dest_ip))) { + return mc_qht_el; + } + } + + return NULL; +} + +/** + * irdma_mcast_cqp_op - perform a mcast cqp operation + * @iwdev: device + * @mc_grp_ctx: mcast group info + * @op: operation + * + * returns error status + */ +static int irdma_mcast_cqp_op(struct irdma_device *iwdev, + struct irdma_mcast_grp_info *mc_grp_ctx, + u8 op) +{ + struct cqp_cmds_info *cqp_info; + struct irdma_cqp_request *cqp_request; + enum irdma_status_code status; + + cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true); + if (!cqp_request) + return -ENOMEM; + + cqp_request->info.in.u.mc_create.info = *mc_grp_ctx; + cqp_info = &cqp_request->info; + cqp_info->cqp_cmd = op; + cqp_info->post_sq = 1; + cqp_info->in.u.mc_create.scratch = (uintptr_t)cqp_request; + cqp_info->in.u.mc_create.cqp = &iwdev->rf->cqp.sc_cqp; + status = irdma_handle_cqp_op(iwdev->rf, cqp_request); + if (status) { + irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_ERR, + "CQP-OP_%s failed\n", + (op == IRDMA_OP_MC_MODIFY) ? "MODIFY" : "CREATE"); + return -ENOMEM; + } + + return 0; +} + +/** + * irdma_mcast_mac - Get the multicast MAC for an IP address + * @ipaddress: IPv4 or IPv6 address + * @mac: pointer to result MAC address + * @ipv4: flag indicating IPv4 or IPv6 + * + */ +void irdma_mcast_mac(u32 *ip_addr, u8 *mac, bool ipv4) +{ + u8 *ip = (u8 *)ip_addr; + + if (ipv4) { + unsigned char mac4[ETH_ALEN] = {0x01, 0x00, 0x5E, 0x00, + 0x00, 0x00}; + + mac4[3] = ip[2] & 0x7F; + mac4[4] = ip[1]; + mac4[5] = ip[0]; + ether_addr_copy(mac, mac4); + } else { + unsigned char mac6[ETH_ALEN] = {0x33, 0x33, 0x00, 0x00, + 0x00, 0x00}; + + mac6[2] = ip[3]; + mac6[3] = ip[2]; + mac6[4] = ip[1]; + mac6[5] = ip[0]; + ether_addr_copy(mac, mac6); + } +} + +/** + * irdma_attach_mcast - attach a qp to a multicast group + * @ibqp: ptr to qp + * @ibgid: pointer to global ID + * @lid: local ID + * + * returns error status + */ +static int irdma_attach_mcast(struct ib_qp *ibqp, + union ib_gid *ibgid, + u16 lid) +{ + struct irdma_qp *iwqp = to_iwqp(ibqp); + struct irdma_device *iwdev = iwqp->iwdev; + struct irdma_pci_f *rf = iwdev->rf; + struct mc_table_list *mc_qht_elem; + struct irdma_mcast_grp_ctx_entry_info mcg_info = {}; + enum irdma_status_code status; + bool allocated_mgn = false; + unsigned long flags; + u32 ip_addr[4] = {}; + u32 mgn; + u32 no_mgs; + int ret = 0; + bool ipv4; + u16 vlan_id; + union { + struct sockaddr saddr; + struct sockaddr_in saddr_in; + struct sockaddr_in6 saddr_in6; + } sgid_addr; + unsigned char dmac[ETH_ALEN]; + + rdma_gid2ip(&sgid_addr.saddr, ibgid); + if (rdma_gid_attr_network_type(ibqp->av_sgid_attr) == RDMA_NETWORK_IPV6) { + irdma_copy_ip_ntohl(ip_addr, + sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32); + irdma_netdev_vlan_ipv6(ip_addr, &vlan_id, NULL); + ipv4 = false; + irdma_dev_info(&rf->sc_dev, + "qp_id=%d, IP6address=%pI6\n", + ibqp->qp_num, ip_addr); + irdma_mcast_mac(ip_addr, dmac, false); + } else { + ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr); + ipv4 = true; + vlan_id = irdma_get_vlan_ipv4(ip_addr); + irdma_mcast_mac(ip_addr, dmac, true); + irdma_dev_info(&rf->sc_dev, + "qp_id=%d, IP4address=%pI4, MAC=%pM\n", + ibqp->qp_num, ip_addr, dmac); + } + + spin_lock_irqsave(&rf->qh_list_lock, flags); + mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr); + if (!mc_qht_elem) { + spin_unlock_irqrestore(&rf->qh_list_lock, flags); + mc_qht_elem = kzalloc(sizeof(*mc_qht_elem), GFP_KERNEL); + if (!mc_qht_elem) + return -ENOMEM; + + mc_qht_elem->mc_info.ipv4_valid = ipv4; + memcpy(mc_qht_elem->mc_info.dest_ip, ip_addr, + sizeof(mc_qht_elem->mc_info.dest_ip)); + ret = irdma_alloc_rsrc(rf, rf->allocated_mcgs, + rf->max_mcg, + &mgn, &rf->next_mcg); + if (ret) { + kfree(mc_qht_elem); + return -ENOMEM; + } + + allocated_mgn = true; + mc_qht_elem->mc_info.mgn = mgn; + status = irdma_allocate_dma_mem(&rf->hw, + &mc_qht_elem->mc_grp_ctx.dma_mem_mc, + sizeof(u64) * IRDMA_MAX_MGS_PER_CTX, + 4096); + if (status) { + irdma_free_rsrc(rf, rf->allocated_mcgs, mgn); + kfree(mc_qht_elem); + return -ENOMEM; + } + + mc_qht_elem->mc_grp_ctx.mg_id = (u16)mgn; + memcpy(mc_qht_elem->mc_grp_ctx.dest_ip_addr, ip_addr, + sizeof(mc_qht_elem->mc_grp_ctx.dest_ip_addr)); + mc_qht_elem->mc_grp_ctx.ipv4_valid = ipv4; + mc_qht_elem->mc_grp_ctx.vlan_id = vlan_id; + if (vlan_id != IRDMA_NO_VLAN) + mc_qht_elem->mc_grp_ctx.vlan_valid = true; + mc_qht_elem->mc_grp_ctx.hmc_fcn_id = iwdev->vsi.fcn_id; + ether_addr_copy(mc_qht_elem->mc_grp_ctx.dest_mac_addr, dmac); + + spin_lock_irqsave(&rf->qh_list_lock, flags); + mcast_list_add(rf, mc_qht_elem); + } else { + if (mc_qht_elem->mc_grp_ctx.no_of_mgs == IRDMA_MAX_MGS_PER_CTX) { + spin_unlock_irqrestore(&rf->qh_list_lock, flags); + return -ENOMEM; + } + } + + mcg_info.qp_id = iwqp->ibqp.qp_num; + no_mgs = mc_qht_elem->mc_grp_ctx.no_of_mgs; + rf->sc_dev.iw_uda_ops->mcast_grp_add(&mc_qht_elem->mc_grp_ctx, + &mcg_info); + spin_unlock_irqrestore(&rf->qh_list_lock, flags); + + /* Only if there is a change do we need to modify or create */ + if (!no_mgs) { + ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, + IRDMA_OP_MC_CREATE); + } else if (no_mgs != mc_qht_elem->mc_grp_ctx.no_of_mgs) { + ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, + IRDMA_OP_MC_MODIFY); + } else { + return 0; + } + + if (ret) + goto error; + + atomic_inc(&iwqp->mcast_ref_cnt); + return 0; + +error: + rf->sc_dev.iw_uda_ops->mcast_grp_del(&mc_qht_elem->mc_grp_ctx, + &mcg_info); + if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) { + mcast_list_del(mc_qht_elem); + irdma_free_dma_mem(&rf->hw, + &mc_qht_elem->mc_grp_ctx.dma_mem_mc); + irdma_free_rsrc(rf, rf->allocated_mcgs, + mc_qht_elem->mc_grp_ctx.mg_id); + kfree(mc_qht_elem); + } + + return ret; +} + +/** + * irdma_detach_mcast - detach a qp from a multicast group + * @ibqp: ptr to qp + * @ibgid: pointer to global ID + * @lid: local ID + * + * returns error status + */ +static int irdma_detach_mcast(struct ib_qp *ibqp, + union ib_gid *ibgid, + u16 lid) +{ + struct irdma_qp *iwqp = to_iwqp(ibqp); + struct irdma_device *iwdev = iwqp->iwdev; + struct irdma_pci_f *rf = iwdev->rf; + u32 ip_addr[4] = {}; + struct mc_table_list *mc_qht_elem; + struct irdma_mcast_grp_ctx_entry_info mcg_info = {}; + int ret; + unsigned long flags; + union { + struct sockaddr saddr; + struct sockaddr_in saddr_in; + struct sockaddr_in6 saddr_in6; + } sgid_addr; + + rdma_gid2ip(&sgid_addr.saddr, ibgid); + if (rdma_gid_attr_network_type(ibqp->av_sgid_attr) == RDMA_NETWORK_IPV6) { + irdma_copy_ip_ntohl(ip_addr, + sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32); + irdma_dev_info(&rf->sc_dev, + "qp_id=%d, IP6address=%pI6\n", + ibqp->qp_num, ip_addr); + } else { + ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr); + irdma_dev_info(&rf->sc_dev, + "qp_id=%d, IP4address=%pI4\n", + ibqp->qp_num, ip_addr); + } + + spin_lock_irqsave(&rf->qh_list_lock, flags); + mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr); + if (!mc_qht_elem) { + spin_unlock_irqrestore(&rf->qh_list_lock, flags); + irdma_pr_info("address not found MCG\n"); + return 0; /* OK to remove group already removed */ + } + + mcg_info.qp_id = iwqp->ibqp.qp_num; + rf->sc_dev.iw_uda_ops->mcast_grp_del(&mc_qht_elem->mc_grp_ctx, + &mcg_info); + if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) { + mcast_list_del(mc_qht_elem); + spin_unlock_irqrestore(&rf->qh_list_lock, flags); + ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, + IRDMA_OP_MC_DESTROY); + if (ret) { + irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR, + "failed MC_DESTROY MCG\n"); + spin_lock_irqsave(&rf->qh_list_lock, flags); + mcast_list_add(rf, mc_qht_elem); + spin_unlock_irqrestore(&rf->qh_list_lock, flags); + return -EAGAIN; + } + + irdma_free_dma_mem(&rf->hw, + &mc_qht_elem->mc_grp_ctx.dma_mem_mc); + irdma_free_rsrc(rf, rf->allocated_mcgs, + mc_qht_elem->mc_grp_ctx.mg_id); + kfree(mc_qht_elem); + } else { + spin_unlock_irqrestore(&rf->qh_list_lock, flags); + ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, + IRDMA_OP_MC_MODIFY); + if (ret) { + irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR, + "failed Modify MCG\n"); + return ret; + } + } + atomic_dec(&iwqp->mcast_ref_cnt); + + return 0; +} + +/** + * irdma_create_ah - create address handle + * @ibpd: ptr to protection domain + * @ah_attr: address handle attributes + * + * returns a pointer to an address handle + */ +static struct ib_ah *irdma_create_ah(struct ib_pd *ibpd, + struct rdma_ah_attr *attr, + u32 flags, + struct ib_udata *udata) +{ + struct irdma_pd *pd = to_iwpd(ibpd); + struct irdma_ah *ah; + const struct ib_gid_attr *sgid_attr; + struct irdma_device *iwdev = to_iwdev(ibpd->device); + struct irdma_pci_f *rf = iwdev->rf; + struct irdma_sc_ah *sc_ah; + u32 ah_id = 0; + struct irdma_ah_info *ah_info; + struct irdma_create_ah_resp uresp; + union { + struct sockaddr saddr; + struct sockaddr_in saddr_in; + struct sockaddr_in6 saddr_in6; + } sgid_addr, dgid_addr; + int err; + u8 dmac[ETH_ALEN]; + + err = irdma_alloc_rsrc(rf, rf->allocated_ahs, + rf->max_ah, &ah_id, &rf->next_ah); + if (err) + return ERR_PTR(err); + + ah = kzalloc(sizeof(*ah), GFP_ATOMIC); + if (!ah) { + irdma_free_rsrc(rf, rf->allocated_ahs, ah_id); + return ERR_PTR(-ENOMEM); + } + + ah->pd = pd; + sc_ah = &ah->sc_ah; + sc_ah->ah_info.ah_idx = ah_id; + sc_ah->ah_info.vsi = &iwdev->vsi; + iwdev->rf->sc_dev.iw_uda_ops->init_ah(&rf->sc_dev, sc_ah); + ah->sgid_index = attr->grh.sgid_index; + sgid_attr = attr->grh.sgid_attr; + memcpy(&ah->dgid, &attr->grh.dgid, sizeof(ah->dgid)); + rdma_gid2ip(&sgid_addr.saddr, &sgid_attr->gid); + rdma_gid2ip(&dgid_addr.saddr, &attr->grh.dgid); + ah->av.attrs = *attr; + ah->av.net_type = rdma_gid_attr_network_type(sgid_attr); + ah->av.sgid_addr.saddr = sgid_addr.saddr; + ah->av.dgid_addr.saddr = dgid_addr.saddr; + ah_info = &sc_ah->ah_info; + ah_info->ah = sc_ah; + ah_info->ah_idx = ah_id; + ah_info->pd_idx = pd->sc_pd.pd_id; + ether_addr_copy(ah_info->mac_addr, iwdev->netdev->dev_addr); + if (attr->ah_flags & IB_AH_GRH) { + ah_info->flow_label = attr->grh.flow_label; + ah_info->hop_ttl = attr->grh.hop_limit; + ah_info->tc_tos = attr->grh.traffic_class; + } + + ether_addr_copy(dmac, attr->roce.dmac); + if (rdma_gid_attr_network_type(sgid_attr) == RDMA_NETWORK_IPV4) { + ah_info->ipv4_valid = true; + ah_info->dest_ip_addr[0] = + ntohl(dgid_addr.saddr_in.sin_addr.s_addr); + ah_info->src_ip_addr[0] = + ntohl(sgid_addr.saddr_in.sin_addr.s_addr); + ah_info->do_lpbk = irdma_ipv4_is_lpb(ah_info->src_ip_addr[0], + ah_info->dest_ip_addr[0]); + if (ipv4_is_multicast(dgid_addr.saddr_in.sin_addr.s_addr)) + irdma_mcast_mac(ah_info->dest_ip_addr, dmac, true); + } else { + irdma_copy_ip_ntohl(ah_info->dest_ip_addr, + dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32); + irdma_copy_ip_ntohl(ah_info->src_ip_addr, + sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32); + ah_info->do_lpbk = irdma_ipv6_is_lpb(ah_info->src_ip_addr, + ah_info->dest_ip_addr); + if (rdma_is_multicast_addr(&dgid_addr.saddr_in6.sin6_addr)) + irdma_mcast_mac(ah_info->dest_ip_addr, dmac, false); + } + if (sgid_attr->ndev && is_vlan_dev(sgid_attr->ndev)) + ah_info->vlan_tag = vlan_dev_vlan_id(sgid_attr->ndev); + else + ah_info->vlan_tag = IRDMA_NO_VLAN; + + ah_info->dst_arpindex = irdma_add_arp(iwdev->rf, ah_info->dest_ip_addr, + ah_info->ipv4_valid, dmac); + + if (ah_info->dst_arpindex == -1) { + err = -EINVAL; + goto error; + } + + if (ah_info->vlan_tag != 0xFFFF) + ah_info->insert_vlan_tag = true; + + err = irdma_ah_cqp_op(iwdev->rf, sc_ah, IRDMA_OP_AH_CREATE, + flags & RDMA_CREATE_AH_SLEEPABLE, + irdma_gsi_ud_qp_ah_cb, sc_ah); + if (err) { + irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR, + "CQP-OP Create AH fail"); + goto error; + } + + if (!(flags & RDMA_CREATE_AH_SLEEPABLE)) { + int cnt = CQP_COMPL_WAIT_TIME_MS * CQP_TIMEOUT_THRESHOLD; + + do { + irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq); + mdelay(1); + } while (!sc_ah->ah_info.ah_valid && --cnt); + + if (!cnt) { + irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR, + "CQP create AH timed out"); + err = -ETIMEDOUT; + goto error; + } + } + + irdma_add_pdusecount(pd); + if (udata) { + uresp.ah_id = ah->sc_ah.ah_info.ah_idx; + err = ib_copy_to_udata(udata, &uresp, sizeof(uresp)); + } + return &ah->ibah; + +error: + kfree(ah); + irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, ah_id); + + return ERR_PTR(err); +} + +/** + * irdma_destroy_ah - Destroy address handle + * @ah: pointer to address handle + */ +static int irdma_destroy_ah(struct ib_ah *ibah, u32 flags) +{ + struct irdma_device *iwdev = to_iwdev(ibah->device); + struct irdma_ah *ah = to_iwah(ibah); + int err; + + if (!ah->sc_ah.ah_info.ah_valid) + return -EINVAL; + + err = irdma_ah_cqp_op(iwdev->rf, &ah->sc_ah, IRDMA_OP_AH_DESTROY, + flags & RDMA_DESTROY_AH_SLEEPABLE, + irdma_destroy_ah_cb, ah); + if (!err) + return 0; + + irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, + ah->sc_ah.ah_info.ah_idx); + irdma_rem_pdusecount(ah->pd, iwdev); + kfree(ah); + + return 0; +} + +/** + * irdma_query_ah - Query address handle + * @ib_ah: pointer to address handle + */ +static int irdma_query_ah(struct ib_ah *ibah, + struct rdma_ah_attr *ah_attr) +{ + struct irdma_ah *ah = to_iwah(ibah); + + memset(ah_attr, 0, sizeof(*ah_attr)); + if (ah->av.attrs.ah_flags & IB_AH_GRH) { + ah_attr->ah_flags = IB_AH_GRH; + ah_attr->grh.flow_label = ah->sc_ah.ah_info.flow_label; + ah_attr->grh.traffic_class = ah->sc_ah.ah_info.tc_tos; + ah_attr->grh.hop_limit = ah->sc_ah.ah_info.hop_ttl; + ah_attr->grh.sgid_index = ah->sgid_index; + ah_attr->grh.sgid_index = ah->sgid_index; + memcpy(&ah_attr->grh.dgid, &ah->dgid, sizeof(ah_attr->grh.dgid)); + } + + return 0; +} + +static enum rdma_link_layer irdma_get_link_layer(struct ib_device *ibdev, + u8 port_num) +{ + return IB_LINK_LAYER_ETHERNET; +} + +static __be64 irdma_mac_to_guid(struct net_device *ndev) +{ + unsigned char *mac = ndev->dev_addr; + __be64 guid; + unsigned char *dst = (unsigned char *)&guid; + + dst[0] = mac[0] ^ 2; + dst[1] = mac[1]; + dst[2] = mac[2]; + dst[3] = 0xff; + dst[4] = 0xfe; + dst[5] = mac[3]; + dst[6] = mac[4]; + dst[7] = mac[5]; + + return guid; +} + +static struct net_device *irdma_get_netdev(struct ib_device *ibdev, + u8 port_num) +{ + struct irdma_device *iwdev = to_iwdev(ibdev); + + if (iwdev->netdev) { + dev_hold(iwdev->netdev); + return iwdev->netdev; + } + + return NULL; +} + +static const struct ib_device_ops irdma_roce_dev_ops = { + .get_link_layer = irdma_get_link_layer, + .query_ah = irdma_query_ah, + .attach_mcast = irdma_attach_mcast, + .detach_mcast = irdma_detach_mcast, + .query_gid = irdma_query_gid_roce, + .modify_qp = irdma_modify_qp_roce, +}; + +static const struct ib_device_ops irdma_iw_dev_ops = { + .query_gid = irdma_query_gid, + .modify_qp = irdma_modify_qp, +}; + +static const struct ib_device_ops irdma_dev_ops = { + .get_port_immutable = irdma_port_immutable, + .get_netdev = irdma_get_netdev, + .query_port = irdma_query_port, + .modify_port = irdma_modify_port, + .query_pkey = irdma_query_pkey, + .alloc_ucontext = irdma_alloc_ucontext, + .dealloc_ucontext = irdma_dealloc_ucontext, + .mmap = irdma_mmap, + .alloc_pd = irdma_alloc_pd, + .dealloc_pd = irdma_dealloc_pd, + .create_qp = irdma_create_qp, + .query_qp = irdma_query_qp, + .destroy_qp = irdma_destroy_qp, + .create_cq = irdma_create_cq, + .destroy_cq = irdma_destroy_cq, + .get_dma_mr = irdma_get_dma_mr, + .reg_user_mr = irdma_reg_user_mr, + .dereg_mr = irdma_dereg_mr, + .alloc_mw = irdma_alloc_mw, + .dealloc_mw = irdma_dealloc_mw, + .alloc_hw_stats = irdma_alloc_hw_stats, + .get_hw_stats = irdma_get_hw_stats, + .query_device = irdma_query_device, + .create_ah = irdma_create_ah, + .destroy_ah = irdma_destroy_ah, + .drain_sq = irdma_drain_sq, + .drain_rq = irdma_drain_rq, + .alloc_mr = irdma_alloc_mr, + .map_mr_sg = irdma_map_mr_sg, + .get_dev_fw_str = irdma_get_dev_fw_str, + .poll_cq = irdma_poll_cq, + .req_notify_cq = irdma_req_notify_cq, + .post_send = irdma_post_send, + .post_recv = irdma_post_recv, + .disassociate_ucontext = irdma_disassociate_ucontext, +}; + +/** + * irdma_init_roce_device - initialization of roce rdma device + * @iwibdev: irdma ib device + */ +static void irdma_init_roce_device(struct irdma_ib_device *iwibdev) +{ + iwibdev->ibdev.uverbs_cmd_mask |= + (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | + (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); + + iwibdev->ibdev.node_type = RDMA_NODE_IB_CA; + iwibdev->ibdev.node_guid = irdma_mac_to_guid(iwibdev->iwdev->netdev); + iwibdev->ibdev.uverbs_abi_ver = 1; + ib_set_device_ops(&iwibdev->ibdev, &irdma_roce_dev_ops); +} + +/** + * irdma_init_roce_device - initialization of iwarp rdma device + * @iwibdev: irdma ib device + */ +static int irdma_init_iw_device(struct irdma_ib_device *iwibdev) +{ + struct net_device *netdev = iwibdev->iwdev->netdev; + + iwibdev->ibdev.node_type = RDMA_NODE_RNIC; + ether_addr_copy((u8 *)&iwibdev->ibdev.node_guid, netdev->dev_addr); + iwibdev->ibdev.iwcm = kzalloc(sizeof(*iwibdev->ibdev.iwcm), GFP_KERNEL); + if (!iwibdev->ibdev.iwcm) + return -ENOMEM; + + iwibdev->ibdev.iwcm->add_ref = irdma_add_ref; + iwibdev->ibdev.iwcm->rem_ref = irdma_rem_ref; + iwibdev->ibdev.iwcm->get_qp = irdma_get_qp; + iwibdev->ibdev.iwcm->connect = irdma_connect; + iwibdev->ibdev.iwcm->accept = irdma_accept; + iwibdev->ibdev.iwcm->reject = irdma_reject; + iwibdev->ibdev.iwcm->create_listen = irdma_create_listen; + iwibdev->ibdev.iwcm->destroy_listen = irdma_destroy_listen; + memcpy(iwibdev->ibdev.iwcm->ifname, netdev->name, + sizeof(iwibdev->ibdev.iwcm->ifname)); + ib_set_device_ops(&iwibdev->ibdev, &irdma_iw_dev_ops); + + return 0; +} + +/** + * irdma_init_rdma_device - initialization of rdma device + * @iwdev: irdma device + */ +static int irdma_init_rdma_device(struct irdma_device *iwdev) +{ + struct irdma_ib_device *iwibdev; + struct pci_dev *pcidev = (struct pci_dev *)iwdev->rf->hw.dev_context; + int ret; + + iwibdev = ib_alloc_device(irdma_ib_device, ibdev); + if (!iwibdev) + return -ENOMEM; + + iwibdev->ibdev.owner = THIS_MODULE; + iwdev->iwibdev = iwibdev; + iwibdev->iwdev = iwdev; + + iwibdev->ibdev.uverbs_abi_ver = IRDMA_ABI_VER; + iwibdev->ibdev.uverbs_cmd_mask = + (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | + (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | + (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | + (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | + (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | + (1ull << IB_USER_VERBS_CMD_REG_MR) | + (1ull << IB_USER_VERBS_CMD_DEREG_MR) | + (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | + (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | + (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | + (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | + (1ull << IB_USER_VERBS_CMD_CREATE_QP) | + (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | + (1ull << IB_USER_VERBS_CMD_QUERY_QP) | + (1ull << IB_USER_VERBS_CMD_POLL_CQ) | + (1ull << IB_USER_VERBS_CMD_CREATE_AH) | + (1ull << IB_USER_VERBS_CMD_DESTROY_AH) | + (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | + (1ull << IB_USER_VERBS_CMD_ALLOC_MW) | + (1ull << IB_USER_VERBS_CMD_BIND_MW) | + (1ull << IB_USER_VERBS_CMD_DEALLOC_MW) | + (1ull << IB_USER_VERBS_CMD_POST_RECV) | + (1ull << IB_USER_VERBS_CMD_POST_SEND); + + if (iwdev->roce_mode) { + irdma_init_roce_device(iwibdev); + } else { + ret = irdma_init_iw_device(iwibdev); + if (ret) { + ib_dealloc_device(&iwibdev->ibdev); + return ret; + } + } + iwibdev->ibdev.phys_port_cnt = 1; + iwibdev->ibdev.num_comp_vectors = iwdev->rf->ceqs_count; + iwibdev->ibdev.dev.parent = &pcidev->dev; + ib_set_device_ops(&iwibdev->ibdev, &irdma_dev_ops); + + return 0; +} + +/** + * irdma_port_ibevent - indicate port event + * @iwdev: iwarp device + */ +void irdma_port_ibevent(struct irdma_device *iwdev) +{ + struct irdma_ib_device *iwibdev = iwdev->iwibdev; + struct ib_event event; + + event.device = &iwibdev->ibdev; + event.element.port_num = 1; + event.event = iwdev->iw_status ? + IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; + ib_dispatch_event(&event); +} + +/** + * irdma_destroy_rdma_device - destroy rdma device and free resources + * @iwibdev: IB device ptr + */ +void irdma_destroy_rdma_device(struct irdma_ib_device *iwibdev) +{ + if (!iwibdev) + return; + + ib_unregister_device(&iwibdev->ibdev); + kfree(iwibdev->ibdev.iwcm); + iwibdev->ibdev.iwcm = NULL; + wait_event_timeout(iwibdev->iwdev->close_wq, + !atomic64_read(&iwibdev->iwdev->use_count), + IRDMA_EVENT_TIMEOUT); + + ib_dealloc_device(&iwibdev->ibdev); +} + +/** + * irdma_register_rdma_device - register iwarp device to IB + * @iwdev: iwarp device + */ +int irdma_register_rdma_device(struct irdma_device *iwdev) +{ + int ret; + struct irdma_ib_device *iwibdev; + + ret = irdma_init_rdma_device(iwdev); + if (ret) + return ret; + + iwibdev = iwdev->iwibdev; + rdma_set_device_sysfs_group(&iwibdev->ibdev, &irdma_attr_group); + if (iwdev->rf->sc_dev.hw_attrs.hw_rev == IRDMA_GEN_1) + /* backward compat with old user-space libi40iw */ + iwibdev->ibdev.driver_id = RDMA_DRIVER_I40IW; + else + iwibdev->ibdev.driver_id = RDMA_DRIVER_IRDMA; + + ret = ib_register_device(&iwibdev->ibdev, "irdma%d"); + if (ret) + goto error; + + return 0; + +error: + kfree(iwdev->iwibdev->ibdev.iwcm); + iwdev->iwibdev->ibdev.iwcm = NULL; + ib_dealloc_device(&iwdev->iwibdev->ibdev); + if (ret) + irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_ERR, + "Register RDMA device fail\n"); + + return ret; +} diff --git a/drivers/infiniband/hw/irdma/verbs.h b/drivers/infiniband/hw/irdma/verbs.h new file mode 100644 index 0000000..5a9534d --- /dev/null +++ b/drivers/infiniband/hw/irdma/verbs.h @@ -0,0 +1,191 @@ +/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */ +/* Copyright (c) 2019, Intel Corporation. */ + +#ifndef IRDMA_VERBS_H +#define IRDMA_VERBS_H + +#define IRDMA_MAX_SAVED_PHY_PGADDR 4 + +struct irdma_vma_data { + struct list_head list; + struct vm_area_struct *vma; + struct mutex *vma_list_mutex; /* protect the vma_list */ +}; + +struct irdma_ucontext { + struct ib_ucontext ibucontext; + struct irdma_device *iwdev; + struct list_head cq_reg_mem_list; + spinlock_t cq_reg_mem_list_lock; /* protect CQ memory list */ + struct list_head qp_reg_mem_list; + spinlock_t qp_reg_mem_list_lock; /* protect QP memory list */ + struct list_head vma_list; + struct mutex vma_list_mutex; /* protect the vma_list */ + int abi_ver; +}; + +struct irdma_pd { + struct ib_pd ibpd; + struct irdma_sc_pd sc_pd; + atomic_t usecount; +}; + +struct irdma_av { + u8 macaddr[16]; + struct rdma_ah_attr attrs; + union { + struct sockaddr saddr; + struct sockaddr_in saddr_in; + struct sockaddr_in6 saddr_in6; + } sgid_addr, dgid_addr; + u8 net_type; +}; + +struct irdma_ah { + struct ib_ah ibah; + struct irdma_sc_ah sc_ah; + atomic_t usecount; + struct irdma_pd *pd; + struct irdma_av av; + u8 sgid_index; + union ib_gid dgid; +}; + +struct irdma_hmc_pble { + union { + u32 idx; + dma_addr_t addr; + }; +}; + +struct irdma_cq_mr { + struct irdma_hmc_pble cq_pbl; + dma_addr_t shadow; +}; + +struct irdma_qp_mr { + struct irdma_hmc_pble sq_pbl; + struct irdma_hmc_pble rq_pbl; + dma_addr_t shadow; + struct page *sq_page; +}; + +struct irdma_pbl { + struct list_head list; + union { + struct irdma_qp_mr qp_mr; + struct irdma_cq_mr cq_mr; + }; + + bool pbl_allocated; + bool on_list; + u64 user_base; + struct irdma_pble_alloc pble_alloc; + struct irdma_mr *iwmr; +}; + +struct irdma_mr { + union { + struct ib_mr ibmr; + struct ib_mw ibmw; + struct ib_fmr ibfmr; + }; + struct ib_umem *region; + u16 type; + u32 page_cnt; + u32 page_size; + u64 page_msk; + u32 npages; + u32 stag; + u64 len; + u64 pgaddrmem[IRDMA_MAX_SAVED_PHY_PGADDR]; + struct irdma_pbl iwpbl; +}; + +struct irdma_cq { + struct ib_cq ibcq; + struct irdma_sc_cq sc_cq; + u16 cq_head; + u16 cq_size; + u16 cq_num; + bool user_mode; + u32 polled_cmpls; + u32 cq_mem_size; + struct irdma_dma_mem kmem; + spinlock_t lock; /* for poll cq */ + struct irdma_pbl *iwpbl; +}; + +struct disconn_work { + struct work_struct work; + struct irdma_qp *iwqp; +}; + +struct iw_cm_id; + +struct irdma_qp_kmode { + struct irdma_dma_mem dma_mem; + u64 *wrid_mem; +}; + +struct irdma_qp { + struct ib_qp ibqp; + struct irdma_sc_qp sc_qp; + struct irdma_device *iwdev; + struct irdma_cq *iwscq; + struct irdma_cq *iwrcq; + struct irdma_pd *iwpd; + struct irdma_qp_host_ctx_info ctx_info; + union { + struct irdma_iwarp_offload_info iwarp_info; + struct irdma_roce_offload_info roce_info; + }; + + struct irdma_udp_offload_info udp_info; + struct irdma_ah roce_ah; + struct list_head teardown_entry; + void *allocated_buf; + atomic_t refcount; + struct iw_cm_id *cm_id; + void *cm_node; + struct ib_mr *lsmm_mr; + struct work_struct work; + atomic_t hw_mod_qp_pend; + enum ib_qp_state ibqp_state; + u32 iwarp_state; + u32 qp_mem_size; + u32 last_aeq; + atomic_t close_timer_started; + spinlock_t lock; /* serialize posting WRs to SQ/RQ */ + struct irdma_qp_context *iwqp_context; + void *pbl_vbase; + dma_addr_t pbl_pbase; + struct page *page; + u8 active_conn:1; + u8 user_mode:1; + u8 hte_added:1; + u8 flush_issued:1; + u8 destroyed:1; + u8 sig_all:1; + u8 pau_mode:1; + u8 rsvd:1; + u16 term_sq_flush_code; + u16 term_rq_flush_code; + u8 hw_iwarp_state; + u8 hw_tcp_state; + struct irdma_qp_kmode kqp; + struct irdma_dma_mem host_ctx; + struct timer_list terminate_timer; + struct irdma_pbl *iwpbl; + struct irdma_dma_mem q2_ctx_mem; + struct irdma_dma_mem ietf_mem; + struct completion sq_drained; + struct completion rq_drained; + atomic_t mcast_ref_cnt; + wait_queue_head_t waitq; + wait_queue_head_t mod_qp_waitq; + u8 rts_ae_rcvd; +}; + +void irdma_mcast_mac(u32 *ip_addr, u8 *mac, bool ipv4); +#endif /* IRDMA_VERBS_H */ diff --git a/include/uapi/rdma/rdma_user_ioctl_cmds.h b/include/uapi/rdma/rdma_user_ioctl_cmds.h index 06c34d9..02bc8db 100644 --- a/include/uapi/rdma/rdma_user_ioctl_cmds.h +++ b/include/uapi/rdma/rdma_user_ioctl_cmds.h @@ -102,6 +102,7 @@ enum rdma_driver_id { RDMA_DRIVER_RXE, RDMA_DRIVER_HFI1, RDMA_DRIVER_QIB, + RDMA_DRIVER_IRDMA, }; #endif