brintos / linux-shallow public Read only

1// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB2/* Copyright (c) 2015 - 2021 Intel Corporation */3#include "main.h"4 5/**6 * irdma_query_device - get device attributes7 * @ibdev: device pointer from stack8 * @props: returning device attributes9 * @udata: user data10 */11static int irdma_query_device(struct ib_device *ibdev,12			      struct ib_device_attr *props,13			      struct ib_udata *udata)14{15	struct irdma_device *iwdev = to_iwdev(ibdev);16	struct irdma_pci_f *rf = iwdev->rf;17	struct pci_dev *pcidev = iwdev->rf->pcidev;18	struct irdma_hw_attrs *hw_attrs = &rf->sc_dev.hw_attrs;19 20	if (udata->inlen || udata->outlen)21		return -EINVAL;22 23	memset(props, 0, sizeof(*props));24	addrconf_addr_eui48((u8 *)&props->sys_image_guid,25			    iwdev->netdev->dev_addr);26	props->fw_ver = (u64)irdma_fw_major_ver(&rf->sc_dev) << 32 |27			irdma_fw_minor_ver(&rf->sc_dev);28	props->device_cap_flags = IB_DEVICE_MEM_WINDOW |29				  IB_DEVICE_MEM_MGT_EXTENSIONS;30	props->kernel_cap_flags = IBK_LOCAL_DMA_LKEY;31	props->vendor_id = pcidev->vendor;32	props->vendor_part_id = pcidev->device;33 34	props->hw_ver = rf->pcidev->revision;35	props->page_size_cap = hw_attrs->page_size_cap;36	props->max_mr_size = hw_attrs->max_mr_size;37	props->max_qp = rf->max_qp - rf->used_qps;38	props->max_qp_wr = hw_attrs->max_qp_wr;39	props->max_send_sge = hw_attrs->uk_attrs.max_hw_wq_frags;40	props->max_recv_sge = hw_attrs->uk_attrs.max_hw_wq_frags;41	props->max_cq = rf->max_cq - rf->used_cqs;42	props->max_cqe = rf->max_cqe - 1;43	props->max_mr = rf->max_mr - rf->used_mrs;44	props->max_mw = props->max_mr;45	props->max_pd = rf->max_pd - rf->used_pds;46	props->max_sge_rd = hw_attrs->uk_attrs.max_hw_read_sges;47	props->max_qp_rd_atom = hw_attrs->max_hw_ird;48	props->max_qp_init_rd_atom = hw_attrs->max_hw_ord;49	if (rdma_protocol_roce(ibdev, 1)) {50		props->device_cap_flags |= IB_DEVICE_RC_RNR_NAK_GEN;51		props->max_pkeys = IRDMA_PKEY_TBL_SZ;52	}53 54	props->max_ah = rf->max_ah;55	props->max_mcast_grp = rf->max_mcg;56	props->max_mcast_qp_attach = IRDMA_MAX_MGS_PER_CTX;57	props->max_total_mcast_qp_attach = rf->max_qp * IRDMA_MAX_MGS_PER_CTX;58	props->max_fast_reg_page_list_len = IRDMA_MAX_PAGES_PER_FMR;59#define HCA_CLOCK_TIMESTAMP_MASK 0x1ffff60	if (hw_attrs->uk_attrs.hw_rev >= IRDMA_GEN_2)61		props->timestamp_mask = HCA_CLOCK_TIMESTAMP_MASK;62 63	return 0;64}65 66/**67 * irdma_query_port - get port attributes68 * @ibdev: device pointer from stack69 * @port: port number for query70 * @props: returning device attributes71 */72static int irdma_query_port(struct ib_device *ibdev, u32 port,73			    struct ib_port_attr *props)74{75	struct irdma_device *iwdev = to_iwdev(ibdev);76	struct net_device *netdev = iwdev->netdev;77 78	/* no need to zero out pros here. done by caller */79 80	props->max_mtu = IB_MTU_4096;81	props->active_mtu = ib_mtu_int_to_enum(netdev->mtu);82	props->lid = 1;83	props->lmc = 0;84	props->sm_lid = 0;85	props->sm_sl = 0;86	if (netif_carrier_ok(netdev) && netif_running(netdev)) {87		props->state = IB_PORT_ACTIVE;88		props->phys_state = IB_PORT_PHYS_STATE_LINK_UP;89	} else {90		props->state = IB_PORT_DOWN;91		props->phys_state = IB_PORT_PHYS_STATE_DISABLED;92	}93 94	ib_get_eth_speed(ibdev, port, &props->active_speed,95			 &props->active_width);96 97	if (rdma_protocol_roce(ibdev, 1)) {98		props->gid_tbl_len = 32;99		props->ip_gids = true;100		props->pkey_tbl_len = IRDMA_PKEY_TBL_SZ;101	} else {102		props->gid_tbl_len = 1;103	}104	props->qkey_viol_cntr = 0;105	props->port_cap_flags |= IB_PORT_CM_SUP | IB_PORT_REINIT_SUP;106	props->max_msg_sz = iwdev->rf->sc_dev.hw_attrs.max_hw_outbound_msg_size;107 108	return 0;109}110 111/**112 * irdma_disassociate_ucontext - Disassociate user context113 * @context: ib user context114 */115static void irdma_disassociate_ucontext(struct ib_ucontext *context)116{117}118 119static int irdma_mmap_legacy(struct irdma_ucontext *ucontext,120			     struct vm_area_struct *vma)121{122	u64 pfn;123 124	if (vma->vm_pgoff || vma->vm_end - vma->vm_start != PAGE_SIZE)125		return -EINVAL;126 127	vma->vm_private_data = ucontext;128	pfn = ((uintptr_t)ucontext->iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET] +129	       pci_resource_start(ucontext->iwdev->rf->pcidev, 0)) >> PAGE_SHIFT;130 131	return rdma_user_mmap_io(&ucontext->ibucontext, vma, pfn, PAGE_SIZE,132				 pgprot_noncached(vma->vm_page_prot), NULL);133}134 135static void irdma_mmap_free(struct rdma_user_mmap_entry *rdma_entry)136{137	struct irdma_user_mmap_entry *entry = to_irdma_mmap_entry(rdma_entry);138 139	kfree(entry);140}141 142static struct rdma_user_mmap_entry*143irdma_user_mmap_entry_insert(struct irdma_ucontext *ucontext, u64 bar_offset,144			     enum irdma_mmap_flag mmap_flag, u64 *mmap_offset)145{146	struct irdma_user_mmap_entry *entry = kzalloc(sizeof(*entry), GFP_KERNEL);147	int ret;148 149	if (!entry)150		return NULL;151 152	entry->bar_offset = bar_offset;153	entry->mmap_flag = mmap_flag;154 155	ret = rdma_user_mmap_entry_insert(&ucontext->ibucontext,156					  &entry->rdma_entry, PAGE_SIZE);157	if (ret) {158		kfree(entry);159		return NULL;160	}161	*mmap_offset = rdma_user_mmap_get_offset(&entry->rdma_entry);162 163	return &entry->rdma_entry;164}165 166/**167 * irdma_mmap - user memory map168 * @context: context created during alloc169 * @vma: kernel info for user memory map170 */171static int irdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)172{173	struct rdma_user_mmap_entry *rdma_entry;174	struct irdma_user_mmap_entry *entry;175	struct irdma_ucontext *ucontext;176	u64 pfn;177	int ret;178 179	ucontext = to_ucontext(context);180 181	/* Legacy support for libi40iw with hard-coded mmap key */182	if (ucontext->legacy_mode)183		return irdma_mmap_legacy(ucontext, vma);184 185	rdma_entry = rdma_user_mmap_entry_get(&ucontext->ibucontext, vma);186	if (!rdma_entry) {187		ibdev_dbg(&ucontext->iwdev->ibdev,188			  "VERBS: pgoff[0x%lx] does not have valid entry\n",189			  vma->vm_pgoff);190		return -EINVAL;191	}192 193	entry = to_irdma_mmap_entry(rdma_entry);194	ibdev_dbg(&ucontext->iwdev->ibdev,195		  "VERBS: bar_offset [0x%llx] mmap_flag [%d]\n",196		  entry->bar_offset, entry->mmap_flag);197 198	pfn = (entry->bar_offset +199	      pci_resource_start(ucontext->iwdev->rf->pcidev, 0)) >> PAGE_SHIFT;200 201	switch (entry->mmap_flag) {202	case IRDMA_MMAP_IO_NC:203		ret = rdma_user_mmap_io(context, vma, pfn, PAGE_SIZE,204					pgprot_noncached(vma->vm_page_prot),205					rdma_entry);206		break;207	case IRDMA_MMAP_IO_WC:208		ret = rdma_user_mmap_io(context, vma, pfn, PAGE_SIZE,209					pgprot_writecombine(vma->vm_page_prot),210					rdma_entry);211		break;212	default:213		ret = -EINVAL;214	}215 216	if (ret)217		ibdev_dbg(&ucontext->iwdev->ibdev,218			  "VERBS: bar_offset [0x%llx] mmap_flag[%d] err[%d]\n",219			  entry->bar_offset, entry->mmap_flag, ret);220	rdma_user_mmap_entry_put(rdma_entry);221 222	return ret;223}224 225/**226 * irdma_alloc_push_page - allocate a push page for qp227 * @iwqp: qp pointer228 */229static void irdma_alloc_push_page(struct irdma_qp *iwqp)230{231	struct irdma_cqp_request *cqp_request;232	struct cqp_cmds_info *cqp_info;233	struct irdma_device *iwdev = iwqp->iwdev;234	struct irdma_sc_qp *qp = &iwqp->sc_qp;235	int status;236 237	cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);238	if (!cqp_request)239		return;240 241	cqp_info = &cqp_request->info;242	cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE;243	cqp_info->post_sq = 1;244	cqp_info->in.u.manage_push_page.info.push_idx = 0;245	cqp_info->in.u.manage_push_page.info.qs_handle =246		qp->vsi->qos[qp->user_pri].qs_handle;247	cqp_info->in.u.manage_push_page.info.free_page = 0;248	cqp_info->in.u.manage_push_page.info.push_page_type = 0;249	cqp_info->in.u.manage_push_page.cqp = &iwdev->rf->cqp.sc_cqp;250	cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;251 252	status = irdma_handle_cqp_op(iwdev->rf, cqp_request);253	if (!status && cqp_request->compl_info.op_ret_val <254	    iwdev->rf->sc_dev.hw_attrs.max_hw_device_pages) {255		qp->push_idx = cqp_request->compl_info.op_ret_val;256		qp->push_offset = 0;257	}258 259	irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);260}261 262/**263 * irdma_alloc_ucontext - Allocate the user context data structure264 * @uctx: uverbs context pointer265 * @udata: user data266 *267 * This keeps track of all objects associated with a particular268 * user-mode client.269 */270static int irdma_alloc_ucontext(struct ib_ucontext *uctx,271				struct ib_udata *udata)272{273#define IRDMA_ALLOC_UCTX_MIN_REQ_LEN offsetofend(struct irdma_alloc_ucontext_req, rsvd8)274#define IRDMA_ALLOC_UCTX_MIN_RESP_LEN offsetofend(struct irdma_alloc_ucontext_resp, rsvd)275	struct ib_device *ibdev = uctx->device;276	struct irdma_device *iwdev = to_iwdev(ibdev);277	struct irdma_alloc_ucontext_req req = {};278	struct irdma_alloc_ucontext_resp uresp = {};279	struct irdma_ucontext *ucontext = to_ucontext(uctx);280	struct irdma_uk_attrs *uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs;281 282	if (udata->inlen < IRDMA_ALLOC_UCTX_MIN_REQ_LEN ||283	    udata->outlen < IRDMA_ALLOC_UCTX_MIN_RESP_LEN)284		return -EINVAL;285 286	if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen)))287		return -EINVAL;288 289	if (req.userspace_ver < 4 || req.userspace_ver > IRDMA_ABI_VER)290		goto ver_error;291 292	ucontext->iwdev = iwdev;293	ucontext->abi_ver = req.userspace_ver;294 295	if (req.comp_mask & IRDMA_ALLOC_UCTX_USE_RAW_ATTR)296		ucontext->use_raw_attrs = true;297 298	/* GEN_1 legacy support with libi40iw */299	if (udata->outlen == IRDMA_ALLOC_UCTX_MIN_RESP_LEN) {300		if (uk_attrs->hw_rev != IRDMA_GEN_1)301			return -EOPNOTSUPP;302 303		ucontext->legacy_mode = true;304		uresp.max_qps = iwdev->rf->max_qp;305		uresp.max_pds = iwdev->rf->sc_dev.hw_attrs.max_hw_pds;306		uresp.wq_size = iwdev->rf->sc_dev.hw_attrs.max_qp_wr * 2;307		uresp.kernel_ver = req.userspace_ver;308		if (ib_copy_to_udata(udata, &uresp,309				     min(sizeof(uresp), udata->outlen)))310			return -EFAULT;311	} else {312		u64 bar_off = (uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET];313 314		ucontext->db_mmap_entry =315			irdma_user_mmap_entry_insert(ucontext, bar_off,316						     IRDMA_MMAP_IO_NC,317						     &uresp.db_mmap_key);318		if (!ucontext->db_mmap_entry)319			return -ENOMEM;320 321		uresp.kernel_ver = IRDMA_ABI_VER;322		uresp.feature_flags = uk_attrs->feature_flags;323		uresp.max_hw_wq_frags = uk_attrs->max_hw_wq_frags;324		uresp.max_hw_read_sges = uk_attrs->max_hw_read_sges;325		uresp.max_hw_inline = uk_attrs->max_hw_inline;326		uresp.max_hw_rq_quanta = uk_attrs->max_hw_rq_quanta;327		uresp.max_hw_wq_quanta = uk_attrs->max_hw_wq_quanta;328		uresp.max_hw_sq_chunk = uk_attrs->max_hw_sq_chunk;329		uresp.max_hw_cq_size = uk_attrs->max_hw_cq_size;330		uresp.min_hw_cq_size = uk_attrs->min_hw_cq_size;331		uresp.hw_rev = uk_attrs->hw_rev;332		uresp.comp_mask |= IRDMA_ALLOC_UCTX_USE_RAW_ATTR;333		uresp.min_hw_wq_size = uk_attrs->min_hw_wq_size;334		uresp.comp_mask |= IRDMA_ALLOC_UCTX_MIN_HW_WQ_SIZE;335		if (ib_copy_to_udata(udata, &uresp,336				     min(sizeof(uresp), udata->outlen))) {337			rdma_user_mmap_entry_remove(ucontext->db_mmap_entry);338			return -EFAULT;339		}340	}341 342	INIT_LIST_HEAD(&ucontext->cq_reg_mem_list);343	spin_lock_init(&ucontext->cq_reg_mem_list_lock);344	INIT_LIST_HEAD(&ucontext->qp_reg_mem_list);345	spin_lock_init(&ucontext->qp_reg_mem_list_lock);346 347	return 0;348 349ver_error:350	ibdev_err(&iwdev->ibdev,351		  "Invalid userspace driver version detected. Detected version %d, should be %d\n",352		  req.userspace_ver, IRDMA_ABI_VER);353	return -EINVAL;354}355 356/**357 * irdma_dealloc_ucontext - deallocate the user context data structure358 * @context: user context created during alloc359 */360static void irdma_dealloc_ucontext(struct ib_ucontext *context)361{362	struct irdma_ucontext *ucontext = to_ucontext(context);363 364	rdma_user_mmap_entry_remove(ucontext->db_mmap_entry);365}366 367/**368 * irdma_alloc_pd - allocate protection domain369 * @pd: PD pointer370 * @udata: user data371 */372static int irdma_alloc_pd(struct ib_pd *pd, struct ib_udata *udata)373{374#define IRDMA_ALLOC_PD_MIN_RESP_LEN offsetofend(struct irdma_alloc_pd_resp, rsvd)375	struct irdma_pd *iwpd = to_iwpd(pd);376	struct irdma_device *iwdev = to_iwdev(pd->device);377	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;378	struct irdma_pci_f *rf = iwdev->rf;379	struct irdma_alloc_pd_resp uresp = {};380	struct irdma_sc_pd *sc_pd;381	u32 pd_id = 0;382	int err;383 384	if (udata && udata->outlen < IRDMA_ALLOC_PD_MIN_RESP_LEN)385		return -EINVAL;386 387	err = irdma_alloc_rsrc(rf, rf->allocated_pds, rf->max_pd, &pd_id,388			       &rf->next_pd);389	if (err)390		return err;391 392	sc_pd = &iwpd->sc_pd;393	if (udata) {394		struct irdma_ucontext *ucontext =395			rdma_udata_to_drv_context(udata, struct irdma_ucontext,396						  ibucontext);397		irdma_sc_pd_init(dev, sc_pd, pd_id, ucontext->abi_ver);398		uresp.pd_id = pd_id;399		if (ib_copy_to_udata(udata, &uresp,400				     min(sizeof(uresp), udata->outlen))) {401			err = -EFAULT;402			goto error;403		}404	} else {405		irdma_sc_pd_init(dev, sc_pd, pd_id, IRDMA_ABI_VER);406	}407 408	return 0;409error:410	irdma_free_rsrc(rf, rf->allocated_pds, pd_id);411 412	return err;413}414 415/**416 * irdma_dealloc_pd - deallocate pd417 * @ibpd: ptr of pd to be deallocated418 * @udata: user data419 */420static int irdma_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)421{422	struct irdma_pd *iwpd = to_iwpd(ibpd);423	struct irdma_device *iwdev = to_iwdev(ibpd->device);424 425	irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_pds, iwpd->sc_pd.pd_id);426 427	return 0;428}429 430/**431 * irdma_get_pbl - Retrieve pbl from a list given a virtual432 * address433 * @va: user virtual address434 * @pbl_list: pbl list to search in (QP's or CQ's)435 */436static struct irdma_pbl *irdma_get_pbl(unsigned long va,437				       struct list_head *pbl_list)438{439	struct irdma_pbl *iwpbl;440 441	list_for_each_entry (iwpbl, pbl_list, list) {442		if (iwpbl->user_base == va) {443			list_del(&iwpbl->list);444			iwpbl->on_list = false;445			return iwpbl;446		}447	}448 449	return NULL;450}451 452/**453 * irdma_clean_cqes - clean cq entries for qp454 * @iwqp: qp ptr (user or kernel)455 * @iwcq: cq ptr456 */457static void irdma_clean_cqes(struct irdma_qp *iwqp, struct irdma_cq *iwcq)458{459	struct irdma_cq_uk *ukcq = &iwcq->sc_cq.cq_uk;460	unsigned long flags;461 462	spin_lock_irqsave(&iwcq->lock, flags);463	irdma_uk_clean_cq(&iwqp->sc_qp.qp_uk, ukcq);464	spin_unlock_irqrestore(&iwcq->lock, flags);465}466 467static void irdma_remove_push_mmap_entries(struct irdma_qp *iwqp)468{469	if (iwqp->push_db_mmap_entry) {470		rdma_user_mmap_entry_remove(iwqp->push_db_mmap_entry);471		iwqp->push_db_mmap_entry = NULL;472	}473	if (iwqp->push_wqe_mmap_entry) {474		rdma_user_mmap_entry_remove(iwqp->push_wqe_mmap_entry);475		iwqp->push_wqe_mmap_entry = NULL;476	}477}478 479static int irdma_setup_push_mmap_entries(struct irdma_ucontext *ucontext,480					 struct irdma_qp *iwqp,481					 u64 *push_wqe_mmap_key,482					 u64 *push_db_mmap_key)483{484	struct irdma_device *iwdev = ucontext->iwdev;485	u64 rsvd, bar_off;486 487	rsvd = IRDMA_PF_BAR_RSVD;488	bar_off = (uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET];489	/* skip over db page */490	bar_off += IRDMA_HW_PAGE_SIZE;491	/* push wqe page */492	bar_off += rsvd + iwqp->sc_qp.push_idx * IRDMA_HW_PAGE_SIZE;493	iwqp->push_wqe_mmap_entry = irdma_user_mmap_entry_insert(ucontext,494					bar_off, IRDMA_MMAP_IO_WC,495					push_wqe_mmap_key);496	if (!iwqp->push_wqe_mmap_entry)497		return -ENOMEM;498 499	/* push doorbell page */500	bar_off += IRDMA_HW_PAGE_SIZE;501	iwqp->push_db_mmap_entry = irdma_user_mmap_entry_insert(ucontext,502					bar_off, IRDMA_MMAP_IO_NC,503					push_db_mmap_key);504	if (!iwqp->push_db_mmap_entry) {505		rdma_user_mmap_entry_remove(iwqp->push_wqe_mmap_entry);506		return -ENOMEM;507	}508 509	return 0;510}511 512/**513 * irdma_destroy_qp - destroy qp514 * @ibqp: qp's ib pointer also to get to device's qp address515 * @udata: user data516 */517static int irdma_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata)518{519	struct irdma_qp *iwqp = to_iwqp(ibqp);520	struct irdma_device *iwdev = iwqp->iwdev;521 522	iwqp->sc_qp.qp_uk.destroy_pending = true;523 524	if (iwqp->iwarp_state == IRDMA_QP_STATE_RTS)525		irdma_modify_qp_to_err(&iwqp->sc_qp);526 527	if (!iwqp->user_mode)528		cancel_delayed_work_sync(&iwqp->dwork_flush);529 530	if (!iwqp->user_mode) {531		if (iwqp->iwscq) {532			irdma_clean_cqes(iwqp, iwqp->iwscq);533			if (iwqp->iwrcq != iwqp->iwscq)534				irdma_clean_cqes(iwqp, iwqp->iwrcq);535		}536	}537 538	irdma_qp_rem_ref(&iwqp->ibqp);539	wait_for_completion(&iwqp->free_qp);540	irdma_free_lsmm_rsrc(iwqp);541	irdma_cqp_qp_destroy_cmd(&iwdev->rf->sc_dev, &iwqp->sc_qp);542 543	irdma_remove_push_mmap_entries(iwqp);544	irdma_free_qp_rsrc(iwqp);545 546	return 0;547}548 549/**550 * irdma_setup_virt_qp - setup for allocation of virtual qp551 * @iwdev: irdma device552 * @iwqp: qp ptr553 * @init_info: initialize info to return554 */555static void irdma_setup_virt_qp(struct irdma_device *iwdev,556			       struct irdma_qp *iwqp,557			       struct irdma_qp_init_info *init_info)558{559	struct irdma_pbl *iwpbl = iwqp->iwpbl;560	struct irdma_qp_mr *qpmr = &iwpbl->qp_mr;561 562	iwqp->page = qpmr->sq_page;563	init_info->shadow_area_pa = qpmr->shadow;564	if (iwpbl->pbl_allocated) {565		init_info->virtual_map = true;566		init_info->sq_pa = qpmr->sq_pbl.idx;567		init_info->rq_pa = qpmr->rq_pbl.idx;568	} else {569		init_info->sq_pa = qpmr->sq_pbl.addr;570		init_info->rq_pa = qpmr->rq_pbl.addr;571	}572}573 574/**575 * irdma_setup_umode_qp - setup sq and rq size in user mode qp576 * @udata: udata577 * @iwdev: iwarp device578 * @iwqp: qp ptr (user or kernel)579 * @info: initialize info to return580 * @init_attr: Initial QP create attributes581 */582static int irdma_setup_umode_qp(struct ib_udata *udata,583				struct irdma_device *iwdev,584				struct irdma_qp *iwqp,585				struct irdma_qp_init_info *info,586				struct ib_qp_init_attr *init_attr)587{588	struct irdma_ucontext *ucontext = rdma_udata_to_drv_context(udata,589				struct irdma_ucontext, ibucontext);590	struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info;591	struct irdma_create_qp_req req;592	unsigned long flags;593	int ret;594 595	ret = ib_copy_from_udata(&req, udata,596				 min(sizeof(req), udata->inlen));597	if (ret) {598		ibdev_dbg(&iwdev->ibdev, "VERBS: ib_copy_from_data fail\n");599		return ret;600	}601 602	iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx;603	iwqp->user_mode = 1;604	if (req.user_wqe_bufs) {605		info->qp_uk_init_info.legacy_mode = ucontext->legacy_mode;606		spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);607		iwqp->iwpbl = irdma_get_pbl((unsigned long)req.user_wqe_bufs,608					    &ucontext->qp_reg_mem_list);609		spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);610 611		if (!iwqp->iwpbl) {612			ret = -ENODATA;613			ibdev_dbg(&iwdev->ibdev, "VERBS: no pbl info\n");614			return ret;615		}616	}617 618	if (!ucontext->use_raw_attrs) {619		/**620		 * Maintain backward compat with older ABI which passes sq and621		 * rq depth in quanta in cap.max_send_wr and cap.max_recv_wr.622		 * There is no way to compute the correct value of623		 * iwqp->max_send_wr/max_recv_wr in the kernel.624		 */625		iwqp->max_send_wr = init_attr->cap.max_send_wr;626		iwqp->max_recv_wr = init_attr->cap.max_recv_wr;627		ukinfo->sq_size = init_attr->cap.max_send_wr;628		ukinfo->rq_size = init_attr->cap.max_recv_wr;629		irdma_uk_calc_shift_wq(ukinfo, &ukinfo->sq_shift,630				       &ukinfo->rq_shift);631	} else {632		ret = irdma_uk_calc_depth_shift_sq(ukinfo, &ukinfo->sq_depth,633						   &ukinfo->sq_shift);634		if (ret)635			return ret;636 637		ret = irdma_uk_calc_depth_shift_rq(ukinfo, &ukinfo->rq_depth,638						   &ukinfo->rq_shift);639		if (ret)640			return ret;641 642		iwqp->max_send_wr =643			(ukinfo->sq_depth - IRDMA_SQ_RSVD) >> ukinfo->sq_shift;644		iwqp->max_recv_wr =645			(ukinfo->rq_depth - IRDMA_RQ_RSVD) >> ukinfo->rq_shift;646		ukinfo->sq_size = ukinfo->sq_depth >> ukinfo->sq_shift;647		ukinfo->rq_size = ukinfo->rq_depth >> ukinfo->rq_shift;648	}649 650	irdma_setup_virt_qp(iwdev, iwqp, info);651 652	return 0;653}654 655/**656 * irdma_setup_kmode_qp - setup initialization for kernel mode qp657 * @iwdev: iwarp device658 * @iwqp: qp ptr (user or kernel)659 * @info: initialize info to return660 * @init_attr: Initial QP create attributes661 */662static int irdma_setup_kmode_qp(struct irdma_device *iwdev,663				struct irdma_qp *iwqp,664				struct irdma_qp_init_info *info,665				struct ib_qp_init_attr *init_attr)666{667	struct irdma_dma_mem *mem = &iwqp->kqp.dma_mem;668	u32 size;669	int status;670	struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info;671 672	status = irdma_uk_calc_depth_shift_sq(ukinfo, &ukinfo->sq_depth,673					      &ukinfo->sq_shift);674	if (status)675		return status;676 677	status = irdma_uk_calc_depth_shift_rq(ukinfo, &ukinfo->rq_depth,678					      &ukinfo->rq_shift);679	if (status)680		return status;681 682	iwqp->kqp.sq_wrid_mem =683		kcalloc(ukinfo->sq_depth, sizeof(*iwqp->kqp.sq_wrid_mem), GFP_KERNEL);684	if (!iwqp->kqp.sq_wrid_mem)685		return -ENOMEM;686 687	iwqp->kqp.rq_wrid_mem =688		kcalloc(ukinfo->rq_depth, sizeof(*iwqp->kqp.rq_wrid_mem), GFP_KERNEL);689 690	if (!iwqp->kqp.rq_wrid_mem) {691		kfree(iwqp->kqp.sq_wrid_mem);692		iwqp->kqp.sq_wrid_mem = NULL;693		return -ENOMEM;694	}695 696	ukinfo->sq_wrtrk_array = iwqp->kqp.sq_wrid_mem;697	ukinfo->rq_wrid_array = iwqp->kqp.rq_wrid_mem;698 699	size = (ukinfo->sq_depth + ukinfo->rq_depth) * IRDMA_QP_WQE_MIN_SIZE;700	size += (IRDMA_SHADOW_AREA_SIZE << 3);701 702	mem->size = ALIGN(size, 256);703	mem->va = dma_alloc_coherent(iwdev->rf->hw.device, mem->size,704				     &mem->pa, GFP_KERNEL);705	if (!mem->va) {706		kfree(iwqp->kqp.sq_wrid_mem);707		iwqp->kqp.sq_wrid_mem = NULL;708		kfree(iwqp->kqp.rq_wrid_mem);709		iwqp->kqp.rq_wrid_mem = NULL;710		return -ENOMEM;711	}712 713	ukinfo->sq = mem->va;714	info->sq_pa = mem->pa;715	ukinfo->rq = &ukinfo->sq[ukinfo->sq_depth];716	info->rq_pa = info->sq_pa + (ukinfo->sq_depth * IRDMA_QP_WQE_MIN_SIZE);717	ukinfo->shadow_area = ukinfo->rq[ukinfo->rq_depth].elem;718	info->shadow_area_pa =719		info->rq_pa + (ukinfo->rq_depth * IRDMA_QP_WQE_MIN_SIZE);720	ukinfo->sq_size = ukinfo->sq_depth >> ukinfo->sq_shift;721	ukinfo->rq_size = ukinfo->rq_depth >> ukinfo->rq_shift;722 723	iwqp->max_send_wr = (ukinfo->sq_depth - IRDMA_SQ_RSVD) >> ukinfo->sq_shift;724	iwqp->max_recv_wr = (ukinfo->rq_depth - IRDMA_RQ_RSVD) >> ukinfo->rq_shift;725	init_attr->cap.max_send_wr = iwqp->max_send_wr;726	init_attr->cap.max_recv_wr = iwqp->max_recv_wr;727 728	return 0;729}730 731static int irdma_cqp_create_qp_cmd(struct irdma_qp *iwqp)732{733	struct irdma_pci_f *rf = iwqp->iwdev->rf;734	struct irdma_cqp_request *cqp_request;735	struct cqp_cmds_info *cqp_info;736	struct irdma_create_qp_info *qp_info;737	int status;738 739	cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);740	if (!cqp_request)741		return -ENOMEM;742 743	cqp_info = &cqp_request->info;744	qp_info = &cqp_request->info.in.u.qp_create.info;745	memset(qp_info, 0, sizeof(*qp_info));746	qp_info->mac_valid = true;747	qp_info->cq_num_valid = true;748	qp_info->next_iwarp_state = IRDMA_QP_STATE_IDLE;749 750	cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE;751	cqp_info->post_sq = 1;752	cqp_info->in.u.qp_create.qp = &iwqp->sc_qp;753	cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request;754	status = irdma_handle_cqp_op(rf, cqp_request);755	irdma_put_cqp_request(&rf->cqp, cqp_request);756 757	return status;758}759 760static void irdma_roce_fill_and_set_qpctx_info(struct irdma_qp *iwqp,761					       struct irdma_qp_host_ctx_info *ctx_info)762{763	struct irdma_device *iwdev = iwqp->iwdev;764	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;765	struct irdma_roce_offload_info *roce_info;766	struct irdma_udp_offload_info *udp_info;767 768	udp_info = &iwqp->udp_info;769	udp_info->snd_mss = ib_mtu_enum_to_int(ib_mtu_int_to_enum(iwdev->vsi.mtu));770	udp_info->cwnd = iwdev->roce_cwnd;771	udp_info->rexmit_thresh = 2;772	udp_info->rnr_nak_thresh = 2;773	udp_info->src_port = 0xc000;774	udp_info->dst_port = ROCE_V2_UDP_DPORT;775	roce_info = &iwqp->roce_info;776	ether_addr_copy(roce_info->mac_addr, iwdev->netdev->dev_addr);777 778	roce_info->rd_en = true;779	roce_info->wr_rdresp_en = true;780	roce_info->bind_en = true;781	roce_info->dcqcn_en = false;782	roce_info->rtomin = 5;783 784	roce_info->ack_credits = iwdev->roce_ackcreds;785	roce_info->ird_size = dev->hw_attrs.max_hw_ird;786	roce_info->ord_size = dev->hw_attrs.max_hw_ord;787 788	if (!iwqp->user_mode) {789		roce_info->priv_mode_en = true;790		roce_info->fast_reg_en = true;791		roce_info->udprivcq_en = true;792	}793	roce_info->roce_tver = 0;794 795	ctx_info->roce_info = &iwqp->roce_info;796	ctx_info->udp_info = &iwqp->udp_info;797	irdma_sc_qp_setctx_roce(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info);798}799 800static void irdma_iw_fill_and_set_qpctx_info(struct irdma_qp *iwqp,801					     struct irdma_qp_host_ctx_info *ctx_info)802{803	struct irdma_device *iwdev = iwqp->iwdev;804	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;805	struct irdma_iwarp_offload_info *iwarp_info;806 807	iwarp_info = &iwqp->iwarp_info;808	ether_addr_copy(iwarp_info->mac_addr, iwdev->netdev->dev_addr);809	iwarp_info->rd_en = true;810	iwarp_info->wr_rdresp_en = true;811	iwarp_info->bind_en = true;812	iwarp_info->ecn_en = true;813	iwarp_info->rtomin = 5;814 815	if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)816		iwarp_info->ib_rd_en = true;817	if (!iwqp->user_mode) {818		iwarp_info->priv_mode_en = true;819		iwarp_info->fast_reg_en = true;820	}821	iwarp_info->ddp_ver = 1;822	iwarp_info->rdmap_ver = 1;823 824	ctx_info->iwarp_info = &iwqp->iwarp_info;825	ctx_info->iwarp_info_valid = true;826	irdma_sc_qp_setctx(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info);827	ctx_info->iwarp_info_valid = false;828}829 830static int irdma_validate_qp_attrs(struct ib_qp_init_attr *init_attr,831				   struct irdma_device *iwdev)832{833	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;834	struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs;835 836	if (init_attr->create_flags)837		return -EOPNOTSUPP;838 839	if (init_attr->cap.max_inline_data > uk_attrs->max_hw_inline ||840	    init_attr->cap.max_send_sge > uk_attrs->max_hw_wq_frags ||841	    init_attr->cap.max_recv_sge > uk_attrs->max_hw_wq_frags ||842	    init_attr->cap.max_send_wr > uk_attrs->max_hw_wq_quanta ||843	    init_attr->cap.max_recv_wr > uk_attrs->max_hw_rq_quanta)844		return -EINVAL;845 846	if (rdma_protocol_roce(&iwdev->ibdev, 1)) {847		if (init_attr->qp_type != IB_QPT_RC &&848		    init_attr->qp_type != IB_QPT_UD &&849		    init_attr->qp_type != IB_QPT_GSI)850			return -EOPNOTSUPP;851	} else {852		if (init_attr->qp_type != IB_QPT_RC)853			return -EOPNOTSUPP;854	}855 856	return 0;857}858 859static void irdma_flush_worker(struct work_struct *work)860{861	struct delayed_work *dwork = to_delayed_work(work);862	struct irdma_qp *iwqp = container_of(dwork, struct irdma_qp, dwork_flush);863 864	irdma_generate_flush_completions(iwqp);865}866 867/**868 * irdma_create_qp - create qp869 * @ibqp: ptr of qp870 * @init_attr: attributes for qp871 * @udata: user data for create qp872 */873static int irdma_create_qp(struct ib_qp *ibqp,874			   struct ib_qp_init_attr *init_attr,875			   struct ib_udata *udata)876{877#define IRDMA_CREATE_QP_MIN_REQ_LEN offsetofend(struct irdma_create_qp_req, user_compl_ctx)878#define IRDMA_CREATE_QP_MIN_RESP_LEN offsetofend(struct irdma_create_qp_resp, rsvd)879	struct ib_pd *ibpd = ibqp->pd;880	struct irdma_pd *iwpd = to_iwpd(ibpd);881	struct irdma_device *iwdev = to_iwdev(ibpd->device);882	struct irdma_pci_f *rf = iwdev->rf;883	struct irdma_qp *iwqp = to_iwqp(ibqp);884	struct irdma_create_qp_resp uresp = {};885	u32 qp_num = 0;886	int err_code;887	struct irdma_sc_qp *qp;888	struct irdma_sc_dev *dev = &rf->sc_dev;889	struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs;890	struct irdma_qp_init_info init_info = {};891	struct irdma_qp_host_ctx_info *ctx_info;892 893	err_code = irdma_validate_qp_attrs(init_attr, iwdev);894	if (err_code)895		return err_code;896 897	if (udata && (udata->inlen < IRDMA_CREATE_QP_MIN_REQ_LEN ||898		      udata->outlen < IRDMA_CREATE_QP_MIN_RESP_LEN))899		return -EINVAL;900 901	init_info.vsi = &iwdev->vsi;902	init_info.qp_uk_init_info.uk_attrs = uk_attrs;903	init_info.qp_uk_init_info.sq_size = init_attr->cap.max_send_wr;904	init_info.qp_uk_init_info.rq_size = init_attr->cap.max_recv_wr;905	init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge;906	init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge;907	init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data;908 909	qp = &iwqp->sc_qp;910	qp->qp_uk.back_qp = iwqp;911	qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX;912 913	iwqp->iwdev = iwdev;914	iwqp->q2_ctx_mem.size = ALIGN(IRDMA_Q2_BUF_SIZE + IRDMA_QP_CTX_SIZE,915				      256);916	iwqp->q2_ctx_mem.va = dma_alloc_coherent(dev->hw->device,917						 iwqp->q2_ctx_mem.size,918						 &iwqp->q2_ctx_mem.pa,919						 GFP_KERNEL);920	if (!iwqp->q2_ctx_mem.va)921		return -ENOMEM;922 923	init_info.q2 = iwqp->q2_ctx_mem.va;924	init_info.q2_pa = iwqp->q2_ctx_mem.pa;925	init_info.host_ctx = (__le64 *)(init_info.q2 + IRDMA_Q2_BUF_SIZE);926	init_info.host_ctx_pa = init_info.q2_pa + IRDMA_Q2_BUF_SIZE;927 928	if (init_attr->qp_type == IB_QPT_GSI)929		qp_num = 1;930	else931		err_code = irdma_alloc_rsrc(rf, rf->allocated_qps, rf->max_qp,932					    &qp_num, &rf->next_qp);933	if (err_code)934		goto error;935 936	iwqp->iwpd = iwpd;937	iwqp->ibqp.qp_num = qp_num;938	qp = &iwqp->sc_qp;939	iwqp->iwscq = to_iwcq(init_attr->send_cq);940	iwqp->iwrcq = to_iwcq(init_attr->recv_cq);941	iwqp->host_ctx.va = init_info.host_ctx;942	iwqp->host_ctx.pa = init_info.host_ctx_pa;943	iwqp->host_ctx.size = IRDMA_QP_CTX_SIZE;944 945	init_info.pd = &iwpd->sc_pd;946	init_info.qp_uk_init_info.qp_id = qp_num;947	if (!rdma_protocol_roce(&iwdev->ibdev, 1))948		init_info.qp_uk_init_info.first_sq_wq = 1;949	iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp;950	init_waitqueue_head(&iwqp->waitq);951	init_waitqueue_head(&iwqp->mod_qp_waitq);952 953	if (udata) {954		init_info.qp_uk_init_info.abi_ver = iwpd->sc_pd.abi_ver;955		err_code = irdma_setup_umode_qp(udata, iwdev, iwqp, &init_info,956						init_attr);957	} else {958		INIT_DELAYED_WORK(&iwqp->dwork_flush, irdma_flush_worker);959		init_info.qp_uk_init_info.abi_ver = IRDMA_ABI_VER;960		err_code = irdma_setup_kmode_qp(iwdev, iwqp, &init_info, init_attr);961	}962 963	if (err_code) {964		ibdev_dbg(&iwdev->ibdev, "VERBS: setup qp failed\n");965		goto error;966	}967 968	if (rdma_protocol_roce(&iwdev->ibdev, 1)) {969		if (init_attr->qp_type == IB_QPT_RC) {970			init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_RC;971			init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM |972							    IRDMA_WRITE_WITH_IMM |973							    IRDMA_ROCE;974		} else {975			init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_UD;976			init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM |977							    IRDMA_ROCE;978		}979	} else {980		init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_IWARP;981		init_info.qp_uk_init_info.qp_caps = IRDMA_WRITE_WITH_IMM;982	}983 984	if (dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1)985		init_info.qp_uk_init_info.qp_caps |= IRDMA_PUSH_MODE;986 987	err_code = irdma_sc_qp_init(qp, &init_info);988	if (err_code) {989		ibdev_dbg(&iwdev->ibdev, "VERBS: qp_init fail\n");990		goto error;991	}992 993	ctx_info = &iwqp->ctx_info;994	ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;995	ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;996 997	if (rdma_protocol_roce(&iwdev->ibdev, 1))998		irdma_roce_fill_and_set_qpctx_info(iwqp, ctx_info);999	else1000		irdma_iw_fill_and_set_qpctx_info(iwqp, ctx_info);1001 1002	err_code = irdma_cqp_create_qp_cmd(iwqp);1003	if (err_code)1004		goto error;1005 1006	refcount_set(&iwqp->refcnt, 1);1007	spin_lock_init(&iwqp->lock);1008	spin_lock_init(&iwqp->sc_qp.pfpdu.lock);1009	iwqp->sig_all = init_attr->sq_sig_type == IB_SIGNAL_ALL_WR;1010	rf->qp_table[qp_num] = iwqp;1011 1012	if (rdma_protocol_roce(&iwdev->ibdev, 1)) {1013		if (dev->ws_add(&iwdev->vsi, 0)) {1014			irdma_cqp_qp_destroy_cmd(&rf->sc_dev, &iwqp->sc_qp);1015			err_code = -EINVAL;1016			goto error;1017		}1018 1019		irdma_qp_add_qos(&iwqp->sc_qp);1020	}1021 1022	if (udata) {1023		/* GEN_1 legacy support with libi40iw does not have expanded uresp struct */1024		if (udata->outlen < sizeof(uresp)) {1025			uresp.lsmm = 1;1026			uresp.push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX_GEN_1;1027		} else {1028			if (rdma_protocol_iwarp(&iwdev->ibdev, 1))1029				uresp.lsmm = 1;1030		}1031		uresp.actual_sq_size = init_info.qp_uk_init_info.sq_size;1032		uresp.actual_rq_size = init_info.qp_uk_init_info.rq_size;1033		uresp.qp_id = qp_num;1034		uresp.qp_caps = qp->qp_uk.qp_caps;1035 1036		err_code = ib_copy_to_udata(udata, &uresp,1037					    min(sizeof(uresp), udata->outlen));1038		if (err_code) {1039			ibdev_dbg(&iwdev->ibdev, "VERBS: copy_to_udata failed\n");1040			irdma_destroy_qp(&iwqp->ibqp, udata);1041			return err_code;1042		}1043	}1044 1045	init_completion(&iwqp->free_qp);1046	return 0;1047 1048error:1049	irdma_free_qp_rsrc(iwqp);1050	return err_code;1051}1052 1053static int irdma_get_ib_acc_flags(struct irdma_qp *iwqp)1054{1055	int acc_flags = 0;1056 1057	if (rdma_protocol_roce(iwqp->ibqp.device, 1)) {1058		if (iwqp->roce_info.wr_rdresp_en) {1059			acc_flags |= IB_ACCESS_LOCAL_WRITE;1060			acc_flags |= IB_ACCESS_REMOTE_WRITE;1061		}1062		if (iwqp->roce_info.rd_en)1063			acc_flags |= IB_ACCESS_REMOTE_READ;1064		if (iwqp->roce_info.bind_en)1065			acc_flags |= IB_ACCESS_MW_BIND;1066	} else {1067		if (iwqp->iwarp_info.wr_rdresp_en) {1068			acc_flags |= IB_ACCESS_LOCAL_WRITE;1069			acc_flags |= IB_ACCESS_REMOTE_WRITE;1070		}1071		if (iwqp->iwarp_info.rd_en)1072			acc_flags |= IB_ACCESS_REMOTE_READ;1073		if (iwqp->iwarp_info.bind_en)1074			acc_flags |= IB_ACCESS_MW_BIND;1075	}1076	return acc_flags;1077}1078 1079/**1080 * irdma_query_qp - query qp attributes1081 * @ibqp: qp pointer1082 * @attr: attributes pointer1083 * @attr_mask: Not used1084 * @init_attr: qp attributes to return1085 */1086static int irdma_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,1087			  int attr_mask, struct ib_qp_init_attr *init_attr)1088{1089	struct irdma_qp *iwqp = to_iwqp(ibqp);1090	struct irdma_sc_qp *qp = &iwqp->sc_qp;1091 1092	memset(attr, 0, sizeof(*attr));1093	memset(init_attr, 0, sizeof(*init_attr));1094 1095	attr->qp_state = iwqp->ibqp_state;1096	attr->cur_qp_state = iwqp->ibqp_state;1097	attr->cap.max_send_wr = iwqp->max_send_wr;1098	attr->cap.max_recv_wr = iwqp->max_recv_wr;1099	attr->cap.max_inline_data = qp->qp_uk.max_inline_data;1100	attr->cap.max_send_sge = qp->qp_uk.max_sq_frag_cnt;1101	attr->cap.max_recv_sge = qp->qp_uk.max_rq_frag_cnt;1102	attr->qp_access_flags = irdma_get_ib_acc_flags(iwqp);1103	attr->port_num = 1;1104	if (rdma_protocol_roce(ibqp->device, 1)) {1105		attr->path_mtu = ib_mtu_int_to_enum(iwqp->udp_info.snd_mss);1106		attr->qkey = iwqp->roce_info.qkey;1107		attr->rq_psn = iwqp->udp_info.epsn;1108		attr->sq_psn = iwqp->udp_info.psn_nxt;1109		attr->dest_qp_num = iwqp->roce_info.dest_qp;1110		attr->pkey_index = iwqp->roce_info.p_key;1111		attr->retry_cnt = iwqp->udp_info.rexmit_thresh;1112		attr->rnr_retry = iwqp->udp_info.rnr_nak_thresh;1113		attr->max_rd_atomic = iwqp->roce_info.ord_size;1114		attr->max_dest_rd_atomic = iwqp->roce_info.ird_size;1115	}1116 1117	init_attr->event_handler = iwqp->ibqp.event_handler;1118	init_attr->qp_context = iwqp->ibqp.qp_context;1119	init_attr->send_cq = iwqp->ibqp.send_cq;1120	init_attr->recv_cq = iwqp->ibqp.recv_cq;1121	init_attr->cap = attr->cap;1122 1123	return 0;1124}1125 1126/**1127 * irdma_query_pkey - Query partition key1128 * @ibdev: device pointer from stack1129 * @port: port number1130 * @index: index of pkey1131 * @pkey: pointer to store the pkey1132 */1133static int irdma_query_pkey(struct ib_device *ibdev, u32 port, u16 index,1134			    u16 *pkey)1135{1136	if (index >= IRDMA_PKEY_TBL_SZ)1137		return -EINVAL;1138 1139	*pkey = IRDMA_DEFAULT_PKEY;1140	return 0;1141}1142 1143static u8 irdma_roce_get_vlan_prio(const struct ib_gid_attr *attr, u8 prio)1144{1145	struct net_device *ndev;1146 1147	rcu_read_lock();1148	ndev = rcu_dereference(attr->ndev);1149	if (!ndev)1150		goto exit;1151	if (is_vlan_dev(ndev)) {1152		u16 vlan_qos = vlan_dev_get_egress_qos_mask(ndev, prio);1153 1154		prio = (vlan_qos & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;1155	}1156exit:1157	rcu_read_unlock();1158	return prio;1159}1160 1161static int irdma_wait_for_suspend(struct irdma_qp *iwqp)1162{1163	if (!wait_event_timeout(iwqp->iwdev->suspend_wq,1164				!iwqp->suspend_pending,1165				msecs_to_jiffies(IRDMA_EVENT_TIMEOUT_MS))) {1166		iwqp->suspend_pending = false;1167		ibdev_warn(&iwqp->iwdev->ibdev,1168			   "modify_qp timed out waiting for suspend. qp_id = %d, last_ae = 0x%x\n",1169			   iwqp->ibqp.qp_num, iwqp->last_aeq);1170		return -EBUSY;1171	}1172 1173	return 0;1174}1175 1176/**1177 * irdma_modify_qp_roce - modify qp request1178 * @ibqp: qp's pointer for modify1179 * @attr: access attributes1180 * @attr_mask: state mask1181 * @udata: user data1182 */1183int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr,1184			 int attr_mask, struct ib_udata *udata)1185{1186#define IRDMA_MODIFY_QP_MIN_REQ_LEN offsetofend(struct irdma_modify_qp_req, rq_flush)1187#define IRDMA_MODIFY_QP_MIN_RESP_LEN offsetofend(struct irdma_modify_qp_resp, push_valid)1188	struct irdma_pd *iwpd = to_iwpd(ibqp->pd);1189	struct irdma_qp *iwqp = to_iwqp(ibqp);1190	struct irdma_device *iwdev = iwqp->iwdev;1191	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;1192	struct irdma_qp_host_ctx_info *ctx_info;1193	struct irdma_roce_offload_info *roce_info;1194	struct irdma_udp_offload_info *udp_info;1195	struct irdma_modify_qp_info info = {};1196	struct irdma_modify_qp_resp uresp = {};1197	struct irdma_modify_qp_req ureq = {};1198	unsigned long flags;1199	u8 issue_modify_qp = 0;1200	int ret = 0;1201 1202	ctx_info = &iwqp->ctx_info;1203	roce_info = &iwqp->roce_info;1204	udp_info = &iwqp->udp_info;1205 1206	if (udata) {1207		/* udata inlen/outlen can be 0 when supporting legacy libi40iw */1208		if ((udata->inlen && udata->inlen < IRDMA_MODIFY_QP_MIN_REQ_LEN) ||1209		    (udata->outlen && udata->outlen < IRDMA_MODIFY_QP_MIN_RESP_LEN))1210			return -EINVAL;1211	}1212 1213	if (attr_mask & ~IB_QP_ATTR_STANDARD_BITS)1214		return -EOPNOTSUPP;1215 1216	if (attr_mask & IB_QP_DEST_QPN)1217		roce_info->dest_qp = attr->dest_qp_num;1218 1219	if (attr_mask & IB_QP_PKEY_INDEX) {1220		ret = irdma_query_pkey(ibqp->device, 0, attr->pkey_index,1221				       &roce_info->p_key);1222		if (ret)1223			return ret;1224	}1225 1226	if (attr_mask & IB_QP_QKEY)1227		roce_info->qkey = attr->qkey;1228 1229	if (attr_mask & IB_QP_PATH_MTU)1230		udp_info->snd_mss = ib_mtu_enum_to_int(attr->path_mtu);1231 1232	if (attr_mask & IB_QP_SQ_PSN) {1233		udp_info->psn_nxt = attr->sq_psn;1234		udp_info->lsn =  0xffff;1235		udp_info->psn_una = attr->sq_psn;1236		udp_info->psn_max = attr->sq_psn;1237	}1238 1239	if (attr_mask & IB_QP_RQ_PSN)1240		udp_info->epsn = attr->rq_psn;1241 1242	if (attr_mask & IB_QP_RNR_RETRY)1243		udp_info->rnr_nak_thresh = attr->rnr_retry;1244 1245	if (attr_mask & IB_QP_RETRY_CNT)1246		udp_info->rexmit_thresh = attr->retry_cnt;1247 1248	ctx_info->roce_info->pd_id = iwpd->sc_pd.pd_id;1249 1250	if (attr_mask & IB_QP_AV) {1251		struct irdma_av *av = &iwqp->roce_ah.av;1252		const struct ib_gid_attr *sgid_attr =1253				attr->ah_attr.grh.sgid_attr;1254		u16 vlan_id = VLAN_N_VID;1255		u32 local_ip[4];1256 1257		memset(&iwqp->roce_ah, 0, sizeof(iwqp->roce_ah));1258		if (attr->ah_attr.ah_flags & IB_AH_GRH) {1259			udp_info->ttl = attr->ah_attr.grh.hop_limit;1260			udp_info->flow_label = attr->ah_attr.grh.flow_label;1261			udp_info->tos = attr->ah_attr.grh.traffic_class;1262			udp_info->src_port =1263				rdma_get_udp_sport(udp_info->flow_label,1264						   ibqp->qp_num,1265						   roce_info->dest_qp);1266			irdma_qp_rem_qos(&iwqp->sc_qp);1267			dev->ws_remove(iwqp->sc_qp.vsi, ctx_info->user_pri);1268			if (iwqp->sc_qp.vsi->dscp_mode)1269				ctx_info->user_pri =1270				iwqp->sc_qp.vsi->dscp_map[irdma_tos2dscp(udp_info->tos)];1271			else1272				ctx_info->user_pri = rt_tos2priority(udp_info->tos);1273		}1274		ret = rdma_read_gid_l2_fields(sgid_attr, &vlan_id,1275					      ctx_info->roce_info->mac_addr);1276		if (ret)1277			return ret;1278		ctx_info->user_pri = irdma_roce_get_vlan_prio(sgid_attr,1279							      ctx_info->user_pri);1280		if (dev->ws_add(iwqp->sc_qp.vsi, ctx_info->user_pri))1281			return -ENOMEM;1282		iwqp->sc_qp.user_pri = ctx_info->user_pri;1283		irdma_qp_add_qos(&iwqp->sc_qp);1284 1285		if (vlan_id >= VLAN_N_VID && iwdev->dcb_vlan_mode)1286			vlan_id = 0;1287		if (vlan_id < VLAN_N_VID) {1288			udp_info->insert_vlan_tag = true;1289			udp_info->vlan_tag = vlan_id |1290				ctx_info->user_pri << VLAN_PRIO_SHIFT;1291		} else {1292			udp_info->insert_vlan_tag = false;1293		}1294 1295		av->attrs = attr->ah_attr;1296		rdma_gid2ip((struct sockaddr *)&av->sgid_addr, &sgid_attr->gid);1297		rdma_gid2ip((struct sockaddr *)&av->dgid_addr, &attr->ah_attr.grh.dgid);1298		av->net_type = rdma_gid_attr_network_type(sgid_attr);1299		if (av->net_type == RDMA_NETWORK_IPV6) {1300			__be32 *daddr =1301				av->dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32;1302			__be32 *saddr =1303				av->sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32;1304 1305			irdma_copy_ip_ntohl(&udp_info->dest_ip_addr[0], daddr);1306			irdma_copy_ip_ntohl(&udp_info->local_ipaddr[0], saddr);1307 1308			udp_info->ipv4 = false;1309			irdma_copy_ip_ntohl(local_ip, daddr);1310 1311		} else if (av->net_type == RDMA_NETWORK_IPV4) {1312			__be32 saddr = av->sgid_addr.saddr_in.sin_addr.s_addr;1313			__be32 daddr = av->dgid_addr.saddr_in.sin_addr.s_addr;1314 1315			local_ip[0] = ntohl(daddr);1316 1317			udp_info->ipv4 = true;1318			udp_info->dest_ip_addr[0] = 0;1319			udp_info->dest_ip_addr[1] = 0;1320			udp_info->dest_ip_addr[2] = 0;1321			udp_info->dest_ip_addr[3] = local_ip[0];1322 1323			udp_info->local_ipaddr[0] = 0;1324			udp_info->local_ipaddr[1] = 0;1325			udp_info->local_ipaddr[2] = 0;1326			udp_info->local_ipaddr[3] = ntohl(saddr);1327		}1328		udp_info->arp_idx =1329			irdma_add_arp(iwdev->rf, local_ip, udp_info->ipv4,1330				      attr->ah_attr.roce.dmac);1331	}1332 1333	if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {1334		if (attr->max_rd_atomic > dev->hw_attrs.max_hw_ord) {1335			ibdev_err(&iwdev->ibdev,1336				  "rd_atomic = %d, above max_hw_ord=%d\n",1337				  attr->max_rd_atomic,1338				  dev->hw_attrs.max_hw_ord);1339			return -EINVAL;1340		}1341		if (attr->max_rd_atomic)1342			roce_info->ord_size = attr->max_rd_atomic;1343		info.ord_valid = true;1344	}1345 1346	if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {1347		if (attr->max_dest_rd_atomic > dev->hw_attrs.max_hw_ird) {1348			ibdev_err(&iwdev->ibdev,1349				  "rd_atomic = %d, above max_hw_ird=%d\n",1350				   attr->max_dest_rd_atomic,1351				   dev->hw_attrs.max_hw_ird);1352			return -EINVAL;1353		}1354		if (attr->max_dest_rd_atomic)1355			roce_info->ird_size = attr->max_dest_rd_atomic;1356	}1357 1358	if (attr_mask & IB_QP_ACCESS_FLAGS) {1359		if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE)1360			roce_info->wr_rdresp_en = true;1361		if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)1362			roce_info->wr_rdresp_en = true;1363		if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ)1364			roce_info->rd_en = true;1365	}1366 1367	wait_event(iwqp->mod_qp_waitq, !atomic_read(&iwqp->hw_mod_qp_pend));1368 1369	ibdev_dbg(&iwdev->ibdev,1370		  "VERBS: caller: %pS qp_id=%d to_ibqpstate=%d ibqpstate=%d irdma_qpstate=%d attr_mask=0x%x\n",1371		  __builtin_return_address(0), ibqp->qp_num, attr->qp_state,1372		  iwqp->ibqp_state, iwqp->iwarp_state, attr_mask);1373 1374	spin_lock_irqsave(&iwqp->lock, flags);1375	if (attr_mask & IB_QP_STATE) {1376		if (!ib_modify_qp_is_ok(iwqp->ibqp_state, attr->qp_state,1377					iwqp->ibqp.qp_type, attr_mask)) {1378			ibdev_warn(&iwdev->ibdev, "modify_qp invalid for qp_id=%d, old_state=0x%x, new_state=0x%x\n",1379				   iwqp->ibqp.qp_num, iwqp->ibqp_state,1380				   attr->qp_state);1381			ret = -EINVAL;1382			goto exit;1383		}1384		info.curr_iwarp_state = iwqp->iwarp_state;1385 1386		switch (attr->qp_state) {1387		case IB_QPS_INIT:1388			if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) {1389				ret = -EINVAL;1390				goto exit;1391			}1392 1393			if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) {1394				info.next_iwarp_state = IRDMA_QP_STATE_IDLE;1395				issue_modify_qp = 1;1396			}1397			break;1398		case IB_QPS_RTR:1399			if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) {1400				ret = -EINVAL;1401				goto exit;1402			}1403			info.arp_cache_idx_valid = true;1404			info.cq_num_valid = true;1405			info.next_iwarp_state = IRDMA_QP_STATE_RTR;1406			issue_modify_qp = 1;1407			break;1408		case IB_QPS_RTS:1409			if (iwqp->ibqp_state < IB_QPS_RTR ||1410			    iwqp->ibqp_state == IB_QPS_ERR) {1411				ret = -EINVAL;1412				goto exit;1413			}1414 1415			info.arp_cache_idx_valid = true;1416			info.cq_num_valid = true;1417			info.ord_valid = true;1418			info.next_iwarp_state = IRDMA_QP_STATE_RTS;1419			issue_modify_qp = 1;1420			if (iwdev->push_mode && udata &&1421			    iwqp->sc_qp.push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX &&1422			    dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) {1423				spin_unlock_irqrestore(&iwqp->lock, flags);1424				irdma_alloc_push_page(iwqp);1425				spin_lock_irqsave(&iwqp->lock, flags);1426			}1427			break;1428		case IB_QPS_SQD:1429			if (iwqp->iwarp_state == IRDMA_QP_STATE_SQD)1430				goto exit;1431 1432			if (iwqp->iwarp_state != IRDMA_QP_STATE_RTS) {1433				ret = -EINVAL;1434				goto exit;1435			}1436 1437			info.next_iwarp_state = IRDMA_QP_STATE_SQD;1438			issue_modify_qp = 1;1439			iwqp->suspend_pending = true;1440			break;1441		case IB_QPS_SQE:1442		case IB_QPS_ERR:1443		case IB_QPS_RESET:1444			if (iwqp->iwarp_state == IRDMA_QP_STATE_ERROR) {1445				spin_unlock_irqrestore(&iwqp->lock, flags);1446				if (udata && udata->inlen) {1447					if (ib_copy_from_udata(&ureq, udata,1448					    min(sizeof(ureq), udata->inlen)))1449						return -EINVAL;1450 1451					irdma_flush_wqes(iwqp,1452					    (ureq.sq_flush ? IRDMA_FLUSH_SQ : 0) |1453					    (ureq.rq_flush ? IRDMA_FLUSH_RQ : 0) |1454					    IRDMA_REFLUSH);1455				}1456				return 0;1457			}1458 1459			info.next_iwarp_state = IRDMA_QP_STATE_ERROR;1460			issue_modify_qp = 1;1461			break;1462		default:1463			ret = -EINVAL;1464			goto exit;1465		}1466 1467		iwqp->ibqp_state = attr->qp_state;1468	}1469 1470	ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;1471	ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;1472	irdma_sc_qp_setctx_roce(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info);1473	spin_unlock_irqrestore(&iwqp->lock, flags);1474 1475	if (attr_mask & IB_QP_STATE) {1476		if (issue_modify_qp) {1477			ctx_info->rem_endpoint_idx = udp_info->arp_idx;1478			if (irdma_hw_modify_qp(iwdev, iwqp, &info, true))1479				return -EINVAL;1480			if (info.next_iwarp_state == IRDMA_QP_STATE_SQD) {1481				ret = irdma_wait_for_suspend(iwqp);1482				if (ret)1483					return ret;1484			}1485			spin_lock_irqsave(&iwqp->lock, flags);1486			if (iwqp->iwarp_state == info.curr_iwarp_state) {1487				iwqp->iwarp_state = info.next_iwarp_state;1488				iwqp->ibqp_state = attr->qp_state;1489			}1490			if (iwqp->ibqp_state > IB_QPS_RTS &&1491			    !iwqp->flush_issued) {1492				spin_unlock_irqrestore(&iwqp->lock, flags);1493				irdma_flush_wqes(iwqp, IRDMA_FLUSH_SQ |1494						       IRDMA_FLUSH_RQ |1495						       IRDMA_FLUSH_WAIT);1496				iwqp->flush_issued = 1;1497			} else {1498				spin_unlock_irqrestore(&iwqp->lock, flags);1499			}1500		} else {1501			iwqp->ibqp_state = attr->qp_state;1502		}1503		if (udata && udata->outlen && dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) {1504			struct irdma_ucontext *ucontext;1505 1506			ucontext = rdma_udata_to_drv_context(udata,1507					struct irdma_ucontext, ibucontext);1508			if (iwqp->sc_qp.push_idx != IRDMA_INVALID_PUSH_PAGE_INDEX &&1509			    !iwqp->push_wqe_mmap_entry &&1510			    !irdma_setup_push_mmap_entries(ucontext, iwqp,1511				&uresp.push_wqe_mmap_key, &uresp.push_db_mmap_key)) {1512				uresp.push_valid = 1;1513				uresp.push_offset = iwqp->sc_qp.push_offset;1514			}1515			ret = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp),1516					       udata->outlen));1517			if (ret) {1518				irdma_remove_push_mmap_entries(iwqp);1519				ibdev_dbg(&iwdev->ibdev,1520					  "VERBS: copy_to_udata failed\n");1521				return ret;1522			}1523		}1524	}1525 1526	return 0;1527exit:1528	spin_unlock_irqrestore(&iwqp->lock, flags);1529 1530	return ret;1531}1532 1533/**1534 * irdma_modify_qp - modify qp request1535 * @ibqp: qp's pointer for modify1536 * @attr: access attributes1537 * @attr_mask: state mask1538 * @udata: user data1539 */1540int irdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,1541		    struct ib_udata *udata)1542{1543#define IRDMA_MODIFY_QP_MIN_REQ_LEN offsetofend(struct irdma_modify_qp_req, rq_flush)1544#define IRDMA_MODIFY_QP_MIN_RESP_LEN offsetofend(struct irdma_modify_qp_resp, push_valid)1545	struct irdma_qp *iwqp = to_iwqp(ibqp);1546	struct irdma_device *iwdev = iwqp->iwdev;1547	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;1548	struct irdma_qp_host_ctx_info *ctx_info;1549	struct irdma_tcp_offload_info *tcp_info;1550	struct irdma_iwarp_offload_info *offload_info;1551	struct irdma_modify_qp_info info = {};1552	struct irdma_modify_qp_resp uresp = {};1553	struct irdma_modify_qp_req ureq = {};1554	u8 issue_modify_qp = 0;1555	u8 dont_wait = 0;1556	int err;1557	unsigned long flags;1558 1559	if (udata) {1560		/* udata inlen/outlen can be 0 when supporting legacy libi40iw */1561		if ((udata->inlen && udata->inlen < IRDMA_MODIFY_QP_MIN_REQ_LEN) ||1562		    (udata->outlen && udata->outlen < IRDMA_MODIFY_QP_MIN_RESP_LEN))1563			return -EINVAL;1564	}1565 1566	if (attr_mask & ~IB_QP_ATTR_STANDARD_BITS)1567		return -EOPNOTSUPP;1568 1569	ctx_info = &iwqp->ctx_info;1570	offload_info = &iwqp->iwarp_info;1571	tcp_info = &iwqp->tcp_info;1572	wait_event(iwqp->mod_qp_waitq, !atomic_read(&iwqp->hw_mod_qp_pend));1573	ibdev_dbg(&iwdev->ibdev,1574		  "VERBS: caller: %pS qp_id=%d to_ibqpstate=%d ibqpstate=%d irdma_qpstate=%d last_aeq=%d hw_tcp_state=%d hw_iwarp_state=%d attr_mask=0x%x\n",1575		  __builtin_return_address(0), ibqp->qp_num, attr->qp_state,1576		  iwqp->ibqp_state, iwqp->iwarp_state, iwqp->last_aeq,1577		  iwqp->hw_tcp_state, iwqp->hw_iwarp_state, attr_mask);1578 1579	spin_lock_irqsave(&iwqp->lock, flags);1580	if (attr_mask & IB_QP_STATE) {1581		info.curr_iwarp_state = iwqp->iwarp_state;1582		switch (attr->qp_state) {1583		case IB_QPS_INIT:1584		case IB_QPS_RTR:1585			if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) {1586				err = -EINVAL;1587				goto exit;1588			}1589 1590			if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) {1591				info.next_iwarp_state = IRDMA_QP_STATE_IDLE;1592				issue_modify_qp = 1;1593			}1594			if (iwdev->push_mode && udata &&1595			    iwqp->sc_qp.push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX &&1596			    dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) {1597				spin_unlock_irqrestore(&iwqp->lock, flags);1598				irdma_alloc_push_page(iwqp);1599				spin_lock_irqsave(&iwqp->lock, flags);1600			}1601			break;1602		case IB_QPS_RTS:1603			if (iwqp->iwarp_state > IRDMA_QP_STATE_RTS ||1604			    !iwqp->cm_id) {1605				err = -EINVAL;1606				goto exit;1607			}1608 1609			issue_modify_qp = 1;1610			iwqp->hw_tcp_state = IRDMA_TCP_STATE_ESTABLISHED;1611			iwqp->hte_added = 1;1612			info.next_iwarp_state = IRDMA_QP_STATE_RTS;1613			info.tcp_ctx_valid = true;1614			info.ord_valid = true;1615			info.arp_cache_idx_valid = true;1616			info.cq_num_valid = true;1617			break;1618		case IB_QPS_SQD:1619			if (iwqp->hw_iwarp_state > IRDMA_QP_STATE_RTS) {1620				err = 0;1621				goto exit;1622			}1623 1624			if (iwqp->iwarp_state == IRDMA_QP_STATE_CLOSING ||1625			    iwqp->iwarp_state < IRDMA_QP_STATE_RTS) {1626				err = 0;1627				goto exit;1628			}1629 1630			if (iwqp->iwarp_state > IRDMA_QP_STATE_CLOSING) {1631				err = -EINVAL;1632				goto exit;1633			}1634 1635			info.next_iwarp_state = IRDMA_QP_STATE_CLOSING;1636			issue_modify_qp = 1;1637			break;1638		case IB_QPS_SQE:1639			if (iwqp->iwarp_state >= IRDMA_QP_STATE_TERMINATE) {1640				err = -EINVAL;1641				goto exit;1642			}1643 1644			info.next_iwarp_state = IRDMA_QP_STATE_TERMINATE;1645			issue_modify_qp = 1;1646			break;1647		case IB_QPS_ERR:1648		case IB_QPS_RESET:1649			if (iwqp->iwarp_state == IRDMA_QP_STATE_ERROR) {1650				spin_unlock_irqrestore(&iwqp->lock, flags);1651				if (udata && udata->inlen) {1652					if (ib_copy_from_udata(&ureq, udata,1653					    min(sizeof(ureq), udata->inlen)))1654						return -EINVAL;1655 1656					irdma_flush_wqes(iwqp,1657					    (ureq.sq_flush ? IRDMA_FLUSH_SQ : 0) |1658					    (ureq.rq_flush ? IRDMA_FLUSH_RQ : 0) |1659					    IRDMA_REFLUSH);1660				}1661				return 0;1662			}1663 1664			if (iwqp->sc_qp.term_flags) {1665				spin_unlock_irqrestore(&iwqp->lock, flags);1666				irdma_terminate_del_timer(&iwqp->sc_qp);1667				spin_lock_irqsave(&iwqp->lock, flags);1668			}1669			info.next_iwarp_state = IRDMA_QP_STATE_ERROR;1670			if (iwqp->hw_tcp_state > IRDMA_TCP_STATE_CLOSED &&1671			    iwdev->iw_status &&1672			    iwqp->hw_tcp_state != IRDMA_TCP_STATE_TIME_WAIT)1673				info.reset_tcp_conn = true;1674			else1675				dont_wait = 1;1676 1677			issue_modify_qp = 1;1678			info.next_iwarp_state = IRDMA_QP_STATE_ERROR;1679			break;1680		default:1681			err = -EINVAL;1682			goto exit;1683		}1684 1685		iwqp->ibqp_state = attr->qp_state;1686	}1687	if (attr_mask & IB_QP_ACCESS_FLAGS) {1688		ctx_info->iwarp_info_valid = true;1689		if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE)1690			offload_info->wr_rdresp_en = true;1691		if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)1692			offload_info->wr_rdresp_en = true;1693		if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ)1694			offload_info->rd_en = true;1695	}1696 1697	if (ctx_info->iwarp_info_valid) {1698		ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;1699		ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;1700		irdma_sc_qp_setctx(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info);1701	}1702	spin_unlock_irqrestore(&iwqp->lock, flags);1703 1704	if (attr_mask & IB_QP_STATE) {1705		if (issue_modify_qp) {1706			ctx_info->rem_endpoint_idx = tcp_info->arp_idx;1707			if (irdma_hw_modify_qp(iwdev, iwqp, &info, true))1708				return -EINVAL;1709		}1710 1711		spin_lock_irqsave(&iwqp->lock, flags);1712		if (iwqp->iwarp_state == info.curr_iwarp_state) {1713			iwqp->iwarp_state = info.next_iwarp_state;1714			iwqp->ibqp_state = attr->qp_state;1715		}1716		spin_unlock_irqrestore(&iwqp->lock, flags);1717	}1718 1719	if (issue_modify_qp && iwqp->ibqp_state > IB_QPS_RTS) {1720		if (dont_wait) {1721			if (iwqp->hw_tcp_state) {1722				spin_lock_irqsave(&iwqp->lock, flags);1723				iwqp->hw_tcp_state = IRDMA_TCP_STATE_CLOSED;1724				iwqp->last_aeq = IRDMA_AE_RESET_SENT;1725				spin_unlock_irqrestore(&iwqp->lock, flags);1726			}1727			irdma_cm_disconn(iwqp);1728		} else {1729			int close_timer_started;1730 1731			spin_lock_irqsave(&iwdev->cm_core.ht_lock, flags);1732 1733			if (iwqp->cm_node) {1734				refcount_inc(&iwqp->cm_node->refcnt);1735				spin_unlock_irqrestore(&iwdev->cm_core.ht_lock, flags);1736				close_timer_started = atomic_inc_return(&iwqp->close_timer_started);1737				if (iwqp->cm_id && close_timer_started == 1)1738					irdma_schedule_cm_timer(iwqp->cm_node,1739						(struct irdma_puda_buf *)iwqp,1740						IRDMA_TIMER_TYPE_CLOSE, 1, 0);1741 1742				irdma_rem_ref_cm_node(iwqp->cm_node);1743			} else {1744				spin_unlock_irqrestore(&iwdev->cm_core.ht_lock, flags);1745			}1746		}1747	}1748	if (attr_mask & IB_QP_STATE && udata && udata->outlen &&1749	    dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) {1750		struct irdma_ucontext *ucontext;1751 1752		ucontext = rdma_udata_to_drv_context(udata,1753					struct irdma_ucontext, ibucontext);1754		if (iwqp->sc_qp.push_idx != IRDMA_INVALID_PUSH_PAGE_INDEX &&1755		    !iwqp->push_wqe_mmap_entry &&1756		    !irdma_setup_push_mmap_entries(ucontext, iwqp,1757			&uresp.push_wqe_mmap_key, &uresp.push_db_mmap_key)) {1758			uresp.push_valid = 1;1759			uresp.push_offset = iwqp->sc_qp.push_offset;1760		}1761 1762		err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp),1763				       udata->outlen));1764		if (err) {1765			irdma_remove_push_mmap_entries(iwqp);1766			ibdev_dbg(&iwdev->ibdev,1767				  "VERBS: copy_to_udata failed\n");1768			return err;1769		}1770	}1771 1772	return 0;1773exit:1774	spin_unlock_irqrestore(&iwqp->lock, flags);1775 1776	return err;1777}1778 1779/**1780 * irdma_cq_free_rsrc - free up resources for cq1781 * @rf: RDMA PCI function1782 * @iwcq: cq ptr1783 */1784static void irdma_cq_free_rsrc(struct irdma_pci_f *rf, struct irdma_cq *iwcq)1785{1786	struct irdma_sc_cq *cq = &iwcq->sc_cq;1787 1788	if (!iwcq->user_mode) {1789		dma_free_coherent(rf->sc_dev.hw->device, iwcq->kmem.size,1790				  iwcq->kmem.va, iwcq->kmem.pa);1791		iwcq->kmem.va = NULL;1792		dma_free_coherent(rf->sc_dev.hw->device,1793				  iwcq->kmem_shadow.size,1794				  iwcq->kmem_shadow.va, iwcq->kmem_shadow.pa);1795		iwcq->kmem_shadow.va = NULL;1796	}1797 1798	irdma_free_rsrc(rf, rf->allocated_cqs, cq->cq_uk.cq_id);1799}1800 1801/**1802 * irdma_free_cqbuf - worker to free a cq buffer1803 * @work: provides access to the cq buffer to free1804 */1805static void irdma_free_cqbuf(struct work_struct *work)1806{1807	struct irdma_cq_buf *cq_buf = container_of(work, struct irdma_cq_buf, work);1808 1809	dma_free_coherent(cq_buf->hw->device, cq_buf->kmem_buf.size,1810			  cq_buf->kmem_buf.va, cq_buf->kmem_buf.pa);1811	cq_buf->kmem_buf.va = NULL;1812	kfree(cq_buf);1813}1814 1815/**1816 * irdma_process_resize_list - remove resized cq buffers from the resize_list1817 * @iwcq: cq which owns the resize_list1818 * @iwdev: irdma device1819 * @lcqe_buf: the buffer where the last cqe is received1820 */1821static int irdma_process_resize_list(struct irdma_cq *iwcq,1822				     struct irdma_device *iwdev,1823				     struct irdma_cq_buf *lcqe_buf)1824{1825	struct list_head *tmp_node, *list_node;1826	struct irdma_cq_buf *cq_buf;1827	int cnt = 0;1828 1829	list_for_each_safe(list_node, tmp_node, &iwcq->resize_list) {1830		cq_buf = list_entry(list_node, struct irdma_cq_buf, list);1831		if (cq_buf == lcqe_buf)1832			return cnt;1833 1834		list_del(&cq_buf->list);1835		queue_work(iwdev->cleanup_wq, &cq_buf->work);1836		cnt++;1837	}1838 1839	return cnt;1840}1841 1842/**1843 * irdma_destroy_cq - destroy cq1844 * @ib_cq: cq pointer1845 * @udata: user data1846 */1847static int irdma_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)1848{1849	struct irdma_device *iwdev = to_iwdev(ib_cq->device);1850	struct irdma_cq *iwcq = to_iwcq(ib_cq);1851	struct irdma_sc_cq *cq = &iwcq->sc_cq;1852	struct irdma_sc_dev *dev = cq->dev;1853	struct irdma_sc_ceq *ceq = dev->ceq[cq->ceq_id];1854	struct irdma_ceq *iwceq = container_of(ceq, struct irdma_ceq, sc_ceq);1855	unsigned long flags;1856 1857	spin_lock_irqsave(&iwcq->lock, flags);1858	if (!list_empty(&iwcq->cmpl_generated))1859		irdma_remove_cmpls_list(iwcq);1860	if (!list_empty(&iwcq->resize_list))1861		irdma_process_resize_list(iwcq, iwdev, NULL);1862	spin_unlock_irqrestore(&iwcq->lock, flags);1863 1864	irdma_cq_rem_ref(ib_cq);1865	wait_for_completion(&iwcq->free_cq);1866 1867	irdma_cq_wq_destroy(iwdev->rf, cq);1868 1869	spin_lock_irqsave(&iwceq->ce_lock, flags);1870	irdma_sc_cleanup_ceqes(cq, ceq);1871	spin_unlock_irqrestore(&iwceq->ce_lock, flags);1872	irdma_cq_free_rsrc(iwdev->rf, iwcq);1873 1874	return 0;1875}1876 1877/**1878 * irdma_resize_cq - resize cq1879 * @ibcq: cq to be resized1880 * @entries: desired cq size1881 * @udata: user data1882 */1883static int irdma_resize_cq(struct ib_cq *ibcq, int entries,1884			   struct ib_udata *udata)1885{1886#define IRDMA_RESIZE_CQ_MIN_REQ_LEN offsetofend(struct irdma_resize_cq_req, user_cq_buffer)1887	struct irdma_cq *iwcq = to_iwcq(ibcq);1888	struct irdma_sc_dev *dev = iwcq->sc_cq.dev;1889	struct irdma_cqp_request *cqp_request;1890	struct cqp_cmds_info *cqp_info;1891	struct irdma_modify_cq_info *m_info;1892	struct irdma_modify_cq_info info = {};1893	struct irdma_dma_mem kmem_buf;1894	struct irdma_cq_mr *cqmr_buf;1895	struct irdma_pbl *iwpbl_buf;1896	struct irdma_device *iwdev;1897	struct irdma_pci_f *rf;1898	struct irdma_cq_buf *cq_buf = NULL;1899	unsigned long flags;1900	int ret;1901 1902	iwdev = to_iwdev(ibcq->device);1903	rf = iwdev->rf;1904 1905	if (!(rf->sc_dev.hw_attrs.uk_attrs.feature_flags &1906	    IRDMA_FEATURE_CQ_RESIZE))1907		return -EOPNOTSUPP;1908 1909	if (udata && udata->inlen < IRDMA_RESIZE_CQ_MIN_REQ_LEN)1910		return -EINVAL;1911 1912	if (entries > rf->max_cqe)1913		return -EINVAL;1914 1915	if (!iwcq->user_mode) {1916		entries++;1917		if (rf->sc_dev.hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)1918			entries *= 2;1919	}1920 1921	info.cq_size = max(entries, 4);1922 1923	if (info.cq_size == iwcq->sc_cq.cq_uk.cq_size - 1)1924		return 0;1925 1926	if (udata) {1927		struct irdma_resize_cq_req req = {};1928		struct irdma_ucontext *ucontext =1929			rdma_udata_to_drv_context(udata, struct irdma_ucontext,1930						  ibucontext);1931 1932		/* CQ resize not supported with legacy GEN_1 libi40iw */1933		if (ucontext->legacy_mode)1934			return -EOPNOTSUPP;1935 1936		if (ib_copy_from_udata(&req, udata,1937				       min(sizeof(req), udata->inlen)))1938			return -EINVAL;1939 1940		spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);1941		iwpbl_buf = irdma_get_pbl((unsigned long)req.user_cq_buffer,1942					  &ucontext->cq_reg_mem_list);1943		spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);1944 1945		if (!iwpbl_buf)1946			return -ENOMEM;1947 1948		cqmr_buf = &iwpbl_buf->cq_mr;1949		if (iwpbl_buf->pbl_allocated) {1950			info.virtual_map = true;1951			info.pbl_chunk_size = 1;1952			info.first_pm_pbl_idx = cqmr_buf->cq_pbl.idx;1953		} else {1954			info.cq_pa = cqmr_buf->cq_pbl.addr;1955		}1956	} else {1957		/* Kmode CQ resize */1958		int rsize;1959 1960		rsize = info.cq_size * sizeof(struct irdma_cqe);1961		kmem_buf.size = ALIGN(round_up(rsize, 256), 256);1962		kmem_buf.va = dma_alloc_coherent(dev->hw->device,1963						 kmem_buf.size, &kmem_buf.pa,1964						 GFP_KERNEL);1965		if (!kmem_buf.va)1966			return -ENOMEM;1967 1968		info.cq_base = kmem_buf.va;1969		info.cq_pa = kmem_buf.pa;1970		cq_buf = kzalloc(sizeof(*cq_buf), GFP_KERNEL);1971		if (!cq_buf) {1972			ret = -ENOMEM;1973			goto error;1974		}1975	}1976 1977	cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);1978	if (!cqp_request) {1979		ret = -ENOMEM;1980		goto error;1981	}1982 1983	info.shadow_read_threshold = iwcq->sc_cq.shadow_read_threshold;1984	info.cq_resize = true;1985 1986	cqp_info = &cqp_request->info;1987	m_info = &cqp_info->in.u.cq_modify.info;1988	memcpy(m_info, &info, sizeof(*m_info));1989 1990	cqp_info->cqp_cmd = IRDMA_OP_CQ_MODIFY;1991	cqp_info->in.u.cq_modify.cq = &iwcq->sc_cq;1992	cqp_info->in.u.cq_modify.scratch = (uintptr_t)cqp_request;1993	cqp_info->post_sq = 1;1994	ret = irdma_handle_cqp_op(rf, cqp_request);1995	irdma_put_cqp_request(&rf->cqp, cqp_request);1996	if (ret)1997		goto error;1998 1999	spin_lock_irqsave(&iwcq->lock, flags);2000	if (cq_buf) {2001		cq_buf->kmem_buf = iwcq->kmem;2002		cq_buf->hw = dev->hw;2003		memcpy(&cq_buf->cq_uk, &iwcq->sc_cq.cq_uk, sizeof(cq_buf->cq_uk));2004		INIT_WORK(&cq_buf->work, irdma_free_cqbuf);2005		list_add_tail(&cq_buf->list, &iwcq->resize_list);2006		iwcq->kmem = kmem_buf;2007	}2008 2009	irdma_sc_cq_resize(&iwcq->sc_cq, &info);2010	ibcq->cqe = info.cq_size - 1;2011	spin_unlock_irqrestore(&iwcq->lock, flags);2012 2013	return 0;2014error:2015	if (!udata) {2016		dma_free_coherent(dev->hw->device, kmem_buf.size, kmem_buf.va,2017				  kmem_buf.pa);2018		kmem_buf.va = NULL;2019	}2020	kfree(cq_buf);2021 2022	return ret;2023}2024 2025static inline int cq_validate_flags(u32 flags, u8 hw_rev)2026{2027	/* GEN1 does not support CQ create flags */2028	if (hw_rev == IRDMA_GEN_1)2029		return flags ? -EOPNOTSUPP : 0;2030 2031	return flags & ~IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION ? -EOPNOTSUPP : 0;2032}2033 2034/**2035 * irdma_create_cq - create cq2036 * @ibcq: CQ allocated2037 * @attr: attributes for cq2038 * @attrs: uverbs attribute bundle2039 */2040static int irdma_create_cq(struct ib_cq *ibcq,2041			   const struct ib_cq_init_attr *attr,2042			   struct uverbs_attr_bundle *attrs)2043{2044#define IRDMA_CREATE_CQ_MIN_REQ_LEN offsetofend(struct irdma_create_cq_req, user_cq_buf)2045#define IRDMA_CREATE_CQ_MIN_RESP_LEN offsetofend(struct irdma_create_cq_resp, cq_size)2046	struct ib_udata *udata = &attrs->driver_udata;2047	struct ib_device *ibdev = ibcq->device;2048	struct irdma_device *iwdev = to_iwdev(ibdev);2049	struct irdma_pci_f *rf = iwdev->rf;2050	struct irdma_cq *iwcq = to_iwcq(ibcq);2051	u32 cq_num = 0;2052	struct irdma_sc_cq *cq;2053	struct irdma_sc_dev *dev = &rf->sc_dev;2054	struct irdma_cq_init_info info = {};2055	struct irdma_cqp_request *cqp_request;2056	struct cqp_cmds_info *cqp_info;2057	struct irdma_cq_uk_init_info *ukinfo = &info.cq_uk_init_info;2058	unsigned long flags;2059	int err_code;2060	int entries = attr->cqe;2061 2062	err_code = cq_validate_flags(attr->flags, dev->hw_attrs.uk_attrs.hw_rev);2063	if (err_code)2064		return err_code;2065 2066	if (udata && (udata->inlen < IRDMA_CREATE_CQ_MIN_REQ_LEN ||2067		      udata->outlen < IRDMA_CREATE_CQ_MIN_RESP_LEN))2068		return -EINVAL;2069 2070	err_code = irdma_alloc_rsrc(rf, rf->allocated_cqs, rf->max_cq, &cq_num,2071				    &rf->next_cq);2072	if (err_code)2073		return err_code;2074 2075	cq = &iwcq->sc_cq;2076	cq->back_cq = iwcq;2077	refcount_set(&iwcq->refcnt, 1);2078	spin_lock_init(&iwcq->lock);2079	INIT_LIST_HEAD(&iwcq->resize_list);2080	INIT_LIST_HEAD(&iwcq->cmpl_generated);2081	info.dev = dev;2082	ukinfo->cq_size = max(entries, 4);2083	ukinfo->cq_id = cq_num;2084	iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size;2085	if (attr->comp_vector < rf->ceqs_count)2086		info.ceq_id = attr->comp_vector;2087	info.ceq_id_valid = true;2088	info.ceqe_mask = 1;2089	info.type = IRDMA_CQ_TYPE_IWARP;2090	info.vsi = &iwdev->vsi;2091 2092	if (udata) {2093		struct irdma_ucontext *ucontext;2094		struct irdma_create_cq_req req = {};2095		struct irdma_cq_mr *cqmr;2096		struct irdma_pbl *iwpbl;2097		struct irdma_pbl *iwpbl_shadow;2098		struct irdma_cq_mr *cqmr_shadow;2099 2100		iwcq->user_mode = true;2101		ucontext =2102			rdma_udata_to_drv_context(udata, struct irdma_ucontext,2103						  ibucontext);2104		if (ib_copy_from_udata(&req, udata,2105				       min(sizeof(req), udata->inlen))) {2106			err_code = -EFAULT;2107			goto cq_free_rsrc;2108		}2109 2110		spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);2111		iwpbl = irdma_get_pbl((unsigned long)req.user_cq_buf,2112				      &ucontext->cq_reg_mem_list);2113		spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);2114		if (!iwpbl) {2115			err_code = -EPROTO;2116			goto cq_free_rsrc;2117		}2118 2119		iwcq->iwpbl = iwpbl;2120		iwcq->cq_mem_size = 0;2121		cqmr = &iwpbl->cq_mr;2122 2123		if (rf->sc_dev.hw_attrs.uk_attrs.feature_flags &2124		    IRDMA_FEATURE_CQ_RESIZE && !ucontext->legacy_mode) {2125			spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);2126			iwpbl_shadow = irdma_get_pbl(2127					(unsigned long)req.user_shadow_area,2128					&ucontext->cq_reg_mem_list);2129			spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);2130 2131			if (!iwpbl_shadow) {2132				err_code = -EPROTO;2133				goto cq_free_rsrc;2134			}2135			iwcq->iwpbl_shadow = iwpbl_shadow;2136			cqmr_shadow = &iwpbl_shadow->cq_mr;2137			info.shadow_area_pa = cqmr_shadow->cq_pbl.addr;2138			cqmr->split = true;2139		} else {2140			info.shadow_area_pa = cqmr->shadow;2141		}2142		if (iwpbl->pbl_allocated) {2143			info.virtual_map = true;2144			info.pbl_chunk_size = 1;2145			info.first_pm_pbl_idx = cqmr->cq_pbl.idx;2146		} else {2147			info.cq_base_pa = cqmr->cq_pbl.addr;2148		}2149	} else {2150		/* Kmode allocations */2151		int rsize;2152 2153		if (entries < 1 || entries > rf->max_cqe) {2154			err_code = -EINVAL;2155			goto cq_free_rsrc;2156		}2157 2158		entries++;2159		if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)2160			entries *= 2;2161		ukinfo->cq_size = entries;2162 2163		rsize = info.cq_uk_init_info.cq_size * sizeof(struct irdma_cqe);2164		iwcq->kmem.size = ALIGN(round_up(rsize, 256), 256);2165		iwcq->kmem.va = dma_alloc_coherent(dev->hw->device,2166						   iwcq->kmem.size,2167						   &iwcq->kmem.pa, GFP_KERNEL);2168		if (!iwcq->kmem.va) {2169			err_code = -ENOMEM;2170			goto cq_free_rsrc;2171		}2172 2173		iwcq->kmem_shadow.size = ALIGN(IRDMA_SHADOW_AREA_SIZE << 3,2174					       64);2175		iwcq->kmem_shadow.va = dma_alloc_coherent(dev->hw->device,2176							  iwcq->kmem_shadow.size,2177							  &iwcq->kmem_shadow.pa,2178							  GFP_KERNEL);2179		if (!iwcq->kmem_shadow.va) {2180			err_code = -ENOMEM;2181			goto cq_free_rsrc;2182		}2183		info.shadow_area_pa = iwcq->kmem_shadow.pa;2184		ukinfo->shadow_area = iwcq->kmem_shadow.va;2185		ukinfo->cq_base = iwcq->kmem.va;2186		info.cq_base_pa = iwcq->kmem.pa;2187	}2188 2189	info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2,2190					 (u32)IRDMA_MAX_CQ_READ_THRESH);2191 2192	if (irdma_sc_cq_init(cq, &info)) {2193		ibdev_dbg(&iwdev->ibdev, "VERBS: init cq fail\n");2194		err_code = -EPROTO;2195		goto cq_free_rsrc;2196	}2197 2198	cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);2199	if (!cqp_request) {2200		err_code = -ENOMEM;2201		goto cq_free_rsrc;2202	}2203 2204	cqp_info = &cqp_request->info;2205	cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE;2206	cqp_info->post_sq = 1;2207	cqp_info->in.u.cq_create.cq = cq;2208	cqp_info->in.u.cq_create.check_overflow = true;2209	cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request;2210	err_code = irdma_handle_cqp_op(rf, cqp_request);2211	irdma_put_cqp_request(&rf->cqp, cqp_request);2212	if (err_code)2213		goto cq_free_rsrc;2214 2215	if (udata) {2216		struct irdma_create_cq_resp resp = {};2217 2218		resp.cq_id = info.cq_uk_init_info.cq_id;2219		resp.cq_size = info.cq_uk_init_info.cq_size;2220		if (ib_copy_to_udata(udata, &resp,2221				     min(sizeof(resp), udata->outlen))) {2222			ibdev_dbg(&iwdev->ibdev,2223				  "VERBS: copy to user data\n");2224			err_code = -EPROTO;2225			goto cq_destroy;2226		}2227	}2228	rf->cq_table[cq_num] = iwcq;2229	init_completion(&iwcq->free_cq);2230 2231	return 0;2232cq_destroy:2233	irdma_cq_wq_destroy(rf, cq);2234cq_free_rsrc:2235	irdma_cq_free_rsrc(rf, iwcq);2236 2237	return err_code;2238}2239 2240/**2241 * irdma_get_mr_access - get hw MR access permissions from IB access flags2242 * @access: IB access flags2243 */2244static inline u16 irdma_get_mr_access(int access)2245{2246	u16 hw_access = 0;2247 2248	hw_access |= (access & IB_ACCESS_LOCAL_WRITE) ?2249		     IRDMA_ACCESS_FLAGS_LOCALWRITE : 0;2250	hw_access |= (access & IB_ACCESS_REMOTE_WRITE) ?2251		     IRDMA_ACCESS_FLAGS_REMOTEWRITE : 0;2252	hw_access |= (access & IB_ACCESS_REMOTE_READ) ?2253		     IRDMA_ACCESS_FLAGS_REMOTEREAD : 0;2254	hw_access |= (access & IB_ACCESS_MW_BIND) ?2255		     IRDMA_ACCESS_FLAGS_BIND_WINDOW : 0;2256	hw_access |= (access & IB_ZERO_BASED) ?2257		     IRDMA_ACCESS_FLAGS_ZERO_BASED : 0;2258	hw_access |= IRDMA_ACCESS_FLAGS_LOCALREAD;2259 2260	return hw_access;2261}2262 2263/**2264 * irdma_free_stag - free stag resource2265 * @iwdev: irdma device2266 * @stag: stag to free2267 */2268static void irdma_free_stag(struct irdma_device *iwdev, u32 stag)2269{2270	u32 stag_idx;2271 2272	stag_idx = (stag & iwdev->rf->mr_stagmask) >> IRDMA_CQPSQ_STAG_IDX_S;2273	irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_mrs, stag_idx);2274}2275 2276/**2277 * irdma_create_stag - create random stag2278 * @iwdev: irdma device2279 */2280static u32 irdma_create_stag(struct irdma_device *iwdev)2281{2282	u32 stag = 0;2283	u32 stag_index = 0;2284	u32 next_stag_index;2285	u32 driver_key;2286	u32 random;2287	u8 consumer_key;2288	int ret;2289 2290	get_random_bytes(&random, sizeof(random));2291	consumer_key = (u8)random;2292 2293	driver_key = random & ~iwdev->rf->mr_stagmask;2294	next_stag_index = (random & iwdev->rf->mr_stagmask) >> 8;2295	next_stag_index %= iwdev->rf->max_mr;2296 2297	ret = irdma_alloc_rsrc(iwdev->rf, iwdev->rf->allocated_mrs,2298			       iwdev->rf->max_mr, &stag_index,2299			       &next_stag_index);2300	if (ret)2301		return stag;2302	stag = stag_index << IRDMA_CQPSQ_STAG_IDX_S;2303	stag |= driver_key;2304	stag += (u32)consumer_key;2305 2306	return stag;2307}2308 2309/**2310 * irdma_next_pbl_addr - Get next pbl address2311 * @pbl: pointer to a pble2312 * @pinfo: info pointer2313 * @idx: index2314 */2315static inline u64 *irdma_next_pbl_addr(u64 *pbl, struct irdma_pble_info **pinfo,2316				       u32 *idx)2317{2318	*idx += 1;2319	if (!(*pinfo) || *idx != (*pinfo)->cnt)2320		return ++pbl;2321	*idx = 0;2322	(*pinfo)++;2323 2324	return (*pinfo)->addr;2325}2326 2327/**2328 * irdma_copy_user_pgaddrs - copy user page address to pble's os locally2329 * @iwmr: iwmr for IB's user page addresses2330 * @pbl: ple pointer to save 1 level or 0 level pble2331 * @level: indicated level 0, 1 or 22332 */2333static void irdma_copy_user_pgaddrs(struct irdma_mr *iwmr, u64 *pbl,2334				    enum irdma_pble_level level)2335{2336	struct ib_umem *region = iwmr->region;2337	struct irdma_pbl *iwpbl = &iwmr->iwpbl;2338	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;2339	struct irdma_pble_info *pinfo;2340	struct ib_block_iter biter;2341	u32 idx = 0;2342	u32 pbl_cnt = 0;2343 2344	pinfo = (level == PBLE_LEVEL_1) ? NULL : palloc->level2.leaf;2345 2346	if (iwmr->type == IRDMA_MEMREG_TYPE_QP)2347		iwpbl->qp_mr.sq_page = sg_page(region->sgt_append.sgt.sgl);2348 2349	rdma_umem_for_each_dma_block(region, &biter, iwmr->page_size) {2350		*pbl = rdma_block_iter_dma_address(&biter);2351		if (++pbl_cnt == palloc->total_cnt)2352			break;2353		pbl = irdma_next_pbl_addr(pbl, &pinfo, &idx);2354	}2355}2356 2357/**2358 * irdma_check_mem_contiguous - check if pbls stored in arr are contiguous2359 * @arr: lvl1 pbl array2360 * @npages: page count2361 * @pg_size: page size2362 *2363 */2364static bool irdma_check_mem_contiguous(u64 *arr, u32 npages, u32 pg_size)2365{2366	u32 pg_idx;2367 2368	for (pg_idx = 0; pg_idx < npages; pg_idx++) {2369		if ((*arr + (pg_size * pg_idx)) != arr[pg_idx])2370			return false;2371	}2372 2373	return true;2374}2375 2376/**2377 * irdma_check_mr_contiguous - check if MR is physically contiguous2378 * @palloc: pbl allocation struct2379 * @pg_size: page size2380 */2381static bool irdma_check_mr_contiguous(struct irdma_pble_alloc *palloc,2382				      u32 pg_size)2383{2384	struct irdma_pble_level2 *lvl2 = &palloc->level2;2385	struct irdma_pble_info *leaf = lvl2->leaf;2386	u64 *arr = NULL;2387	u64 *start_addr = NULL;2388	int i;2389	bool ret;2390 2391	if (palloc->level == PBLE_LEVEL_1) {2392		arr = palloc->level1.addr;2393		ret = irdma_check_mem_contiguous(arr, palloc->total_cnt,2394						 pg_size);2395		return ret;2396	}2397 2398	start_addr = leaf->addr;2399 2400	for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) {2401		arr = leaf->addr;2402		if ((*start_addr + (i * pg_size * PBLE_PER_PAGE)) != *arr)2403			return false;2404		ret = irdma_check_mem_contiguous(arr, leaf->cnt, pg_size);2405		if (!ret)2406			return false;2407	}2408 2409	return true;2410}2411 2412/**2413 * irdma_setup_pbles - copy user pg address to pble's2414 * @rf: RDMA PCI function2415 * @iwmr: mr pointer for this memory registration2416 * @lvl: requested pble levels2417 */2418static int irdma_setup_pbles(struct irdma_pci_f *rf, struct irdma_mr *iwmr,2419			     u8 lvl)2420{2421	struct irdma_pbl *iwpbl = &iwmr->iwpbl;2422	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;2423	struct irdma_pble_info *pinfo;2424	u64 *pbl;2425	int status;2426	enum irdma_pble_level level = PBLE_LEVEL_1;2427 2428	if (lvl) {2429		status = irdma_get_pble(rf->pble_rsrc, palloc, iwmr->page_cnt,2430					lvl);2431		if (status)2432			return status;2433 2434		iwpbl->pbl_allocated = true;2435		level = palloc->level;2436		pinfo = (level == PBLE_LEVEL_1) ? &palloc->level1 :2437						  palloc->level2.leaf;2438		pbl = pinfo->addr;2439	} else {2440		pbl = iwmr->pgaddrmem;2441	}2442 2443	irdma_copy_user_pgaddrs(iwmr, pbl, level);2444 2445	if (lvl)2446		iwmr->pgaddrmem[0] = *pbl;2447 2448	return 0;2449}2450 2451/**2452 * irdma_handle_q_mem - handle memory for qp and cq2453 * @iwdev: irdma device2454 * @req: information for q memory management2455 * @iwpbl: pble struct2456 * @lvl: pble level mask2457 */2458static int irdma_handle_q_mem(struct irdma_device *iwdev,2459			      struct irdma_mem_reg_req *req,2460			      struct irdma_pbl *iwpbl, u8 lvl)2461{2462	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;2463	struct irdma_mr *iwmr = iwpbl->iwmr;2464	struct irdma_qp_mr *qpmr = &iwpbl->qp_mr;2465	struct irdma_cq_mr *cqmr = &iwpbl->cq_mr;2466	struct irdma_hmc_pble *hmc_p;2467	u64 *arr = iwmr->pgaddrmem;2468	u32 pg_size, total;2469	int err = 0;2470	bool ret = true;2471 2472	pg_size = iwmr->page_size;2473	err = irdma_setup_pbles(iwdev->rf, iwmr, lvl);2474	if (err)2475		return err;2476 2477	if (lvl)2478		arr = palloc->level1.addr;2479 2480	switch (iwmr->type) {2481	case IRDMA_MEMREG_TYPE_QP:2482		total = req->sq_pages + req->rq_pages;2483		hmc_p = &qpmr->sq_pbl;2484		qpmr->shadow = (dma_addr_t)arr[total];2485 2486		if (lvl) {2487			ret = irdma_check_mem_contiguous(arr, req->sq_pages,2488							 pg_size);2489			if (ret)2490				ret = irdma_check_mem_contiguous(&arr[req->sq_pages],2491								 req->rq_pages,2492								 pg_size);2493		}2494 2495		if (!ret) {2496			hmc_p->idx = palloc->level1.idx;2497			hmc_p = &qpmr->rq_pbl;2498			hmc_p->idx = palloc->level1.idx + req->sq_pages;2499		} else {2500			hmc_p->addr = arr[0];2501			hmc_p = &qpmr->rq_pbl;2502			hmc_p->addr = arr[req->sq_pages];2503		}2504		break;2505	case IRDMA_MEMREG_TYPE_CQ:2506		hmc_p = &cqmr->cq_pbl;2507 2508		if (!cqmr->split)2509			cqmr->shadow = (dma_addr_t)arr[req->cq_pages];2510 2511		if (lvl)2512			ret = irdma_check_mem_contiguous(arr, req->cq_pages,2513							 pg_size);2514 2515		if (!ret)2516			hmc_p->idx = palloc->level1.idx;2517		else2518			hmc_p->addr = arr[0];2519	break;2520	default:2521		ibdev_dbg(&iwdev->ibdev, "VERBS: MR type error\n");2522		err = -EINVAL;2523	}2524 2525	if (lvl && ret) {2526		irdma_free_pble(iwdev->rf->pble_rsrc, palloc);2527		iwpbl->pbl_allocated = false;2528	}2529 2530	return err;2531}2532 2533/**2534 * irdma_hw_alloc_mw - create the hw memory window2535 * @iwdev: irdma device2536 * @iwmr: pointer to memory window info2537 */2538static int irdma_hw_alloc_mw(struct irdma_device *iwdev, struct irdma_mr *iwmr)2539{2540	struct irdma_mw_alloc_info *info;2541	struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd);2542	struct irdma_cqp_request *cqp_request;2543	struct cqp_cmds_info *cqp_info;2544	int status;2545 2546	cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);2547	if (!cqp_request)2548		return -ENOMEM;2549 2550	cqp_info = &cqp_request->info;2551	info = &cqp_info->in.u.mw_alloc.info;2552	memset(info, 0, sizeof(*info));2553	if (iwmr->ibmw.type == IB_MW_TYPE_1)2554		info->mw_wide = true;2555 2556	info->page_size = PAGE_SIZE;2557	info->mw_stag_index = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S;2558	info->pd_id = iwpd->sc_pd.pd_id;2559	info->remote_access = true;2560	cqp_info->cqp_cmd = IRDMA_OP_MW_ALLOC;2561	cqp_info->post_sq = 1;2562	cqp_info->in.u.mw_alloc.dev = &iwdev->rf->sc_dev;2563	cqp_info->in.u.mw_alloc.scratch = (uintptr_t)cqp_request;2564	status = irdma_handle_cqp_op(iwdev->rf, cqp_request);2565	irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);2566 2567	return status;2568}2569 2570/**2571 * irdma_alloc_mw - Allocate memory window2572 * @ibmw: Memory Window2573 * @udata: user data pointer2574 */2575static int irdma_alloc_mw(struct ib_mw *ibmw, struct ib_udata *udata)2576{2577	struct irdma_device *iwdev = to_iwdev(ibmw->device);2578	struct irdma_mr *iwmr = to_iwmw(ibmw);2579	int err_code;2580	u32 stag;2581 2582	stag = irdma_create_stag(iwdev);2583	if (!stag)2584		return -ENOMEM;2585 2586	iwmr->stag = stag;2587	ibmw->rkey = stag;2588 2589	err_code = irdma_hw_alloc_mw(iwdev, iwmr);2590	if (err_code) {2591		irdma_free_stag(iwdev, stag);2592		return err_code;2593	}2594 2595	return 0;2596}2597 2598/**2599 * irdma_dealloc_mw - Dealloc memory window2600 * @ibmw: memory window structure.2601 */2602static int irdma_dealloc_mw(struct ib_mw *ibmw)2603{2604	struct ib_pd *ibpd = ibmw->pd;2605	struct irdma_pd *iwpd = to_iwpd(ibpd);2606	struct irdma_mr *iwmr = to_iwmr((struct ib_mr *)ibmw);2607	struct irdma_device *iwdev = to_iwdev(ibmw->device);2608	struct irdma_cqp_request *cqp_request;2609	struct cqp_cmds_info *cqp_info;2610	struct irdma_dealloc_stag_info *info;2611 2612	cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);2613	if (!cqp_request)2614		return -ENOMEM;2615 2616	cqp_info = &cqp_request->info;2617	info = &cqp_info->in.u.dealloc_stag.info;2618	memset(info, 0, sizeof(*info));2619	info->pd_id = iwpd->sc_pd.pd_id;2620	info->stag_idx = ibmw->rkey >> IRDMA_CQPSQ_STAG_IDX_S;2621	info->mr = false;2622	cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG;2623	cqp_info->post_sq = 1;2624	cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev;2625	cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request;2626	irdma_handle_cqp_op(iwdev->rf, cqp_request);2627	irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);2628	irdma_free_stag(iwdev, iwmr->stag);2629 2630	return 0;2631}2632 2633/**2634 * irdma_hw_alloc_stag - cqp command to allocate stag2635 * @iwdev: irdma device2636 * @iwmr: irdma mr pointer2637 */2638static int irdma_hw_alloc_stag(struct irdma_device *iwdev,2639			       struct irdma_mr *iwmr)2640{2641	struct irdma_allocate_stag_info *info;2642	struct ib_pd *pd = iwmr->ibmr.pd;2643	struct irdma_pd *iwpd = to_iwpd(pd);2644	int status;2645	struct irdma_cqp_request *cqp_request;2646	struct cqp_cmds_info *cqp_info;2647 2648	cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);2649	if (!cqp_request)2650		return -ENOMEM;2651 2652	cqp_info = &cqp_request->info;2653	info = &cqp_info->in.u.alloc_stag.info;2654	memset(info, 0, sizeof(*info));2655	info->page_size = PAGE_SIZE;2656	info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S;2657	info->pd_id = iwpd->sc_pd.pd_id;2658	info->total_len = iwmr->len;2659	info->all_memory = pd->flags & IB_PD_UNSAFE_GLOBAL_RKEY;2660	info->remote_access = true;2661	cqp_info->cqp_cmd = IRDMA_OP_ALLOC_STAG;2662	cqp_info->post_sq = 1;2663	cqp_info->in.u.alloc_stag.dev = &iwdev->rf->sc_dev;2664	cqp_info->in.u.alloc_stag.scratch = (uintptr_t)cqp_request;2665	status = irdma_handle_cqp_op(iwdev->rf, cqp_request);2666	irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);2667	if (status)2668		return status;2669 2670	iwmr->is_hwreg = 1;2671	return 0;2672}2673 2674/**2675 * irdma_alloc_mr - register stag for fast memory registration2676 * @pd: ibpd pointer2677 * @mr_type: memory for stag registrion2678 * @max_num_sg: man number of pages2679 */2680static struct ib_mr *irdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,2681				    u32 max_num_sg)2682{2683	struct irdma_device *iwdev = to_iwdev(pd->device);2684	struct irdma_pble_alloc *palloc;2685	struct irdma_pbl *iwpbl;2686	struct irdma_mr *iwmr;2687	u32 stag;2688	int err_code;2689 2690	iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);2691	if (!iwmr)2692		return ERR_PTR(-ENOMEM);2693 2694	stag = irdma_create_stag(iwdev);2695	if (!stag) {2696		err_code = -ENOMEM;2697		goto err;2698	}2699 2700	iwmr->stag = stag;2701	iwmr->ibmr.rkey = stag;2702	iwmr->ibmr.lkey = stag;2703	iwmr->ibmr.pd = pd;2704	iwmr->ibmr.device = pd->device;2705	iwpbl = &iwmr->iwpbl;2706	iwpbl->iwmr = iwmr;2707	iwmr->type = IRDMA_MEMREG_TYPE_MEM;2708	palloc = &iwpbl->pble_alloc;2709	iwmr->page_cnt = max_num_sg;2710	/* Use system PAGE_SIZE as the sg page sizes are unknown at this point */2711	iwmr->len = max_num_sg * PAGE_SIZE;2712	err_code = irdma_get_pble(iwdev->rf->pble_rsrc, palloc, iwmr->page_cnt,2713				  false);2714	if (err_code)2715		goto err_get_pble;2716 2717	err_code = irdma_hw_alloc_stag(iwdev, iwmr);2718	if (err_code)2719		goto err_alloc_stag;2720 2721	iwpbl->pbl_allocated = true;2722 2723	return &iwmr->ibmr;2724err_alloc_stag:2725	irdma_free_pble(iwdev->rf->pble_rsrc, palloc);2726err_get_pble:2727	irdma_free_stag(iwdev, stag);2728err:2729	kfree(iwmr);2730 2731	return ERR_PTR(err_code);2732}2733 2734/**2735 * irdma_set_page - populate pbl list for fmr2736 * @ibmr: ib mem to access iwarp mr pointer2737 * @addr: page dma address fro pbl list2738 */2739static int irdma_set_page(struct ib_mr *ibmr, u64 addr)2740{2741	struct irdma_mr *iwmr = to_iwmr(ibmr);2742	struct irdma_pbl *iwpbl = &iwmr->iwpbl;2743	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;2744	u64 *pbl;2745 2746	if (unlikely(iwmr->npages == iwmr->page_cnt))2747		return -ENOMEM;2748 2749	if (palloc->level == PBLE_LEVEL_2) {2750		struct irdma_pble_info *palloc_info =2751			palloc->level2.leaf + (iwmr->npages >> PBLE_512_SHIFT);2752 2753		palloc_info->addr[iwmr->npages & (PBLE_PER_PAGE - 1)] = addr;2754	} else {2755		pbl = palloc->level1.addr;2756		pbl[iwmr->npages] = addr;2757	}2758	iwmr->npages++;2759 2760	return 0;2761}2762 2763/**2764 * irdma_map_mr_sg - map of sg list for fmr2765 * @ibmr: ib mem to access iwarp mr pointer2766 * @sg: scatter gather list2767 * @sg_nents: number of sg pages2768 * @sg_offset: scatter gather list for fmr2769 */2770static int irdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,2771			   int sg_nents, unsigned int *sg_offset)2772{2773	struct irdma_mr *iwmr = to_iwmr(ibmr);2774 2775	iwmr->npages = 0;2776 2777	return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, irdma_set_page);2778}2779 2780/**2781 * irdma_hwreg_mr - send cqp command for memory registration2782 * @iwdev: irdma device2783 * @iwmr: irdma mr pointer2784 * @access: access for MR2785 */2786static int irdma_hwreg_mr(struct irdma_device *iwdev, struct irdma_mr *iwmr,2787			  u16 access)2788{2789	struct irdma_pbl *iwpbl = &iwmr->iwpbl;2790	struct irdma_reg_ns_stag_info *stag_info;2791	struct ib_pd *pd = iwmr->ibmr.pd;2792	struct irdma_pd *iwpd = to_iwpd(pd);2793	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;2794	struct irdma_cqp_request *cqp_request;2795	struct cqp_cmds_info *cqp_info;2796	int ret;2797 2798	cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);2799	if (!cqp_request)2800		return -ENOMEM;2801 2802	cqp_info = &cqp_request->info;2803	stag_info = &cqp_info->in.u.mr_reg_non_shared.info;2804	memset(stag_info, 0, sizeof(*stag_info));2805	stag_info->va = iwpbl->user_base;2806	stag_info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S;2807	stag_info->stag_key = (u8)iwmr->stag;2808	stag_info->total_len = iwmr->len;2809	stag_info->access_rights = irdma_get_mr_access(access);2810	stag_info->pd_id = iwpd->sc_pd.pd_id;2811	stag_info->all_memory = pd->flags & IB_PD_UNSAFE_GLOBAL_RKEY;2812	if (stag_info->access_rights & IRDMA_ACCESS_FLAGS_ZERO_BASED)2813		stag_info->addr_type = IRDMA_ADDR_TYPE_ZERO_BASED;2814	else2815		stag_info->addr_type = IRDMA_ADDR_TYPE_VA_BASED;2816	stag_info->page_size = iwmr->page_size;2817 2818	if (iwpbl->pbl_allocated) {2819		if (palloc->level == PBLE_LEVEL_1) {2820			stag_info->first_pm_pbl_index = palloc->level1.idx;2821			stag_info->chunk_size = 1;2822		} else {2823			stag_info->first_pm_pbl_index = palloc->level2.root.idx;2824			stag_info->chunk_size = 3;2825		}2826	} else {2827		stag_info->reg_addr_pa = iwmr->pgaddrmem[0];2828	}2829 2830	cqp_info->cqp_cmd = IRDMA_OP_MR_REG_NON_SHARED;2831	cqp_info->post_sq = 1;2832	cqp_info->in.u.mr_reg_non_shared.dev = &iwdev->rf->sc_dev;2833	cqp_info->in.u.mr_reg_non_shared.scratch = (uintptr_t)cqp_request;2834	ret = irdma_handle_cqp_op(iwdev->rf, cqp_request);2835	irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);2836 2837	if (!ret)2838		iwmr->is_hwreg = 1;2839 2840	return ret;2841}2842 2843static int irdma_reg_user_mr_type_mem(struct irdma_mr *iwmr, int access,2844				      bool create_stag)2845{2846	struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device);2847	struct irdma_pbl *iwpbl = &iwmr->iwpbl;2848	u32 stag = 0;2849	u8 lvl;2850	int err;2851 2852	lvl = iwmr->page_cnt != 1 ? PBLE_LEVEL_1 | PBLE_LEVEL_2 : PBLE_LEVEL_0;2853 2854	err = irdma_setup_pbles(iwdev->rf, iwmr, lvl);2855	if (err)2856		return err;2857 2858	if (lvl) {2859		err = irdma_check_mr_contiguous(&iwpbl->pble_alloc,2860						iwmr->page_size);2861		if (err) {2862			irdma_free_pble(iwdev->rf->pble_rsrc, &iwpbl->pble_alloc);2863			iwpbl->pbl_allocated = false;2864		}2865	}2866 2867	if (create_stag) {2868		stag = irdma_create_stag(iwdev);2869		if (!stag) {2870			err = -ENOMEM;2871			goto free_pble;2872		}2873 2874		iwmr->stag = stag;2875		iwmr->ibmr.rkey = stag;2876		iwmr->ibmr.lkey = stag;2877	}2878 2879	err = irdma_hwreg_mr(iwdev, iwmr, access);2880	if (err)2881		goto err_hwreg;2882 2883	return 0;2884 2885err_hwreg:2886	if (stag)2887		irdma_free_stag(iwdev, stag);2888 2889free_pble:2890	if (iwpbl->pble_alloc.level != PBLE_LEVEL_0 && iwpbl->pbl_allocated)2891		irdma_free_pble(iwdev->rf->pble_rsrc, &iwpbl->pble_alloc);2892 2893	return err;2894}2895 2896static struct irdma_mr *irdma_alloc_iwmr(struct ib_umem *region,2897					 struct ib_pd *pd, u64 virt,2898					 enum irdma_memreg_type reg_type)2899{2900	struct irdma_device *iwdev = to_iwdev(pd->device);2901	struct irdma_pbl *iwpbl;2902	struct irdma_mr *iwmr;2903	unsigned long pgsz_bitmap;2904 2905	iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);2906	if (!iwmr)2907		return ERR_PTR(-ENOMEM);2908 2909	iwpbl = &iwmr->iwpbl;2910	iwpbl->iwmr = iwmr;2911	iwmr->region = region;2912	iwmr->ibmr.pd = pd;2913	iwmr->ibmr.device = pd->device;2914	iwmr->ibmr.iova = virt;2915	iwmr->type = reg_type;2916 2917	pgsz_bitmap = (reg_type == IRDMA_MEMREG_TYPE_MEM) ?2918		iwdev->rf->sc_dev.hw_attrs.page_size_cap : SZ_4K;2919 2920	iwmr->page_size = ib_umem_find_best_pgsz(region, pgsz_bitmap, virt);2921	if (unlikely(!iwmr->page_size)) {2922		kfree(iwmr);2923		return ERR_PTR(-EOPNOTSUPP);2924	}2925 2926	iwmr->len = region->length;2927	iwpbl->user_base = virt;2928	iwmr->page_cnt = ib_umem_num_dma_blocks(region, iwmr->page_size);2929 2930	return iwmr;2931}2932 2933static void irdma_free_iwmr(struct irdma_mr *iwmr)2934{2935	kfree(iwmr);2936}2937 2938static int irdma_reg_user_mr_type_qp(struct irdma_mem_reg_req req,2939				     struct ib_udata *udata,2940				     struct irdma_mr *iwmr)2941{2942	struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device);2943	struct irdma_pbl *iwpbl = &iwmr->iwpbl;2944	struct irdma_ucontext *ucontext = NULL;2945	unsigned long flags;2946	u32 total;2947	int err;2948	u8 lvl;2949 2950	/* iWarp: Catch page not starting on OS page boundary */2951	if (!rdma_protocol_roce(&iwdev->ibdev, 1) &&2952	    ib_umem_offset(iwmr->region))2953		return -EINVAL;2954 2955	total = req.sq_pages + req.rq_pages + 1;2956	if (total > iwmr->page_cnt)2957		return -EINVAL;2958 2959	total = req.sq_pages + req.rq_pages;2960	lvl = total > 2 ? PBLE_LEVEL_1 : PBLE_LEVEL_0;2961	err = irdma_handle_q_mem(iwdev, &req, iwpbl, lvl);2962	if (err)2963		return err;2964 2965	ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext,2966					     ibucontext);2967	spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);2968	list_add_tail(&iwpbl->list, &ucontext->qp_reg_mem_list);2969	iwpbl->on_list = true;2970	spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);2971 2972	return 0;2973}2974 2975static int irdma_reg_user_mr_type_cq(struct irdma_mem_reg_req req,2976				     struct ib_udata *udata,2977				     struct irdma_mr *iwmr)2978{2979	struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device);2980	struct irdma_pbl *iwpbl = &iwmr->iwpbl;2981	struct irdma_ucontext *ucontext = NULL;2982	u8 shadow_pgcnt = 1;2983	unsigned long flags;2984	u32 total;2985	int err;2986	u8 lvl;2987 2988	if (iwdev->rf->sc_dev.hw_attrs.uk_attrs.feature_flags & IRDMA_FEATURE_CQ_RESIZE)2989		shadow_pgcnt = 0;2990	total = req.cq_pages + shadow_pgcnt;2991	if (total > iwmr->page_cnt)2992		return -EINVAL;2993 2994	lvl = req.cq_pages > 1 ? PBLE_LEVEL_1 : PBLE_LEVEL_0;2995	err = irdma_handle_q_mem(iwdev, &req, iwpbl, lvl);2996	if (err)2997		return err;2998 2999	ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext,3000					     ibucontext);3001	spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);3002	list_add_tail(&iwpbl->list, &ucontext->cq_reg_mem_list);3003	iwpbl->on_list = true;3004	spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);3005 3006	return 0;3007}3008 3009/**3010 * irdma_reg_user_mr - Register a user memory region3011 * @pd: ptr of pd3012 * @start: virtual start address3013 * @len: length of mr3014 * @virt: virtual address3015 * @access: access of mr3016 * @udata: user data3017 */3018static struct ib_mr *irdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 len,3019				       u64 virt, int access,3020				       struct ib_udata *udata)3021{3022#define IRDMA_MEM_REG_MIN_REQ_LEN offsetofend(struct irdma_mem_reg_req, sq_pages)3023	struct irdma_device *iwdev = to_iwdev(pd->device);3024	struct irdma_mem_reg_req req = {};3025	struct ib_umem *region = NULL;3026	struct irdma_mr *iwmr = NULL;3027	int err;3028 3029	if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size)3030		return ERR_PTR(-EINVAL);3031 3032	if (udata->inlen < IRDMA_MEM_REG_MIN_REQ_LEN)3033		return ERR_PTR(-EINVAL);3034 3035	region = ib_umem_get(pd->device, start, len, access);3036 3037	if (IS_ERR(region)) {3038		ibdev_dbg(&iwdev->ibdev,3039			  "VERBS: Failed to create ib_umem region\n");3040		return (struct ib_mr *)region;3041	}3042 3043	if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen))) {3044		ib_umem_release(region);3045		return ERR_PTR(-EFAULT);3046	}3047 3048	iwmr = irdma_alloc_iwmr(region, pd, virt, req.reg_type);3049	if (IS_ERR(iwmr)) {3050		ib_umem_release(region);3051		return (struct ib_mr *)iwmr;3052	}3053 3054	switch (req.reg_type) {3055	case IRDMA_MEMREG_TYPE_QP:3056		err = irdma_reg_user_mr_type_qp(req, udata, iwmr);3057		if (err)3058			goto error;3059 3060		break;3061	case IRDMA_MEMREG_TYPE_CQ:3062		err = irdma_reg_user_mr_type_cq(req, udata, iwmr);3063		if (err)3064			goto error;3065		break;3066	case IRDMA_MEMREG_TYPE_MEM:3067		err = irdma_reg_user_mr_type_mem(iwmr, access, true);3068		if (err)3069			goto error;3070 3071		break;3072	default:3073		err = -EINVAL;3074		goto error;3075	}3076 3077	return &iwmr->ibmr;3078error:3079	ib_umem_release(region);3080	irdma_free_iwmr(iwmr);3081 3082	return ERR_PTR(err);3083}3084 3085static struct ib_mr *irdma_reg_user_mr_dmabuf(struct ib_pd *pd, u64 start,3086					      u64 len, u64 virt,3087					      int fd, int access,3088					      struct uverbs_attr_bundle *attrs)3089{3090	struct irdma_device *iwdev = to_iwdev(pd->device);3091	struct ib_umem_dmabuf *umem_dmabuf;3092	struct irdma_mr *iwmr;3093	int err;3094 3095	if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size)3096		return ERR_PTR(-EINVAL);3097 3098	umem_dmabuf = ib_umem_dmabuf_get_pinned(pd->device, start, len, fd, access);3099	if (IS_ERR(umem_dmabuf)) {3100		err = PTR_ERR(umem_dmabuf);3101		ibdev_dbg(&iwdev->ibdev, "Failed to get dmabuf umem[%d]\n", err);3102		return ERR_PTR(err);3103	}3104 3105	iwmr = irdma_alloc_iwmr(&umem_dmabuf->umem, pd, virt, IRDMA_MEMREG_TYPE_MEM);3106	if (IS_ERR(iwmr)) {3107		err = PTR_ERR(iwmr);3108		goto err_release;3109	}3110 3111	err = irdma_reg_user_mr_type_mem(iwmr, access, true);3112	if (err)3113		goto err_iwmr;3114 3115	return &iwmr->ibmr;3116 3117err_iwmr:3118	irdma_free_iwmr(iwmr);3119 3120err_release:3121	ib_umem_release(&umem_dmabuf->umem);3122 3123	return ERR_PTR(err);3124}3125 3126static int irdma_hwdereg_mr(struct ib_mr *ib_mr)3127{3128	struct irdma_device *iwdev = to_iwdev(ib_mr->device);3129	struct irdma_mr *iwmr = to_iwmr(ib_mr);3130	struct irdma_pd *iwpd = to_iwpd(ib_mr->pd);3131	struct irdma_dealloc_stag_info *info;3132	struct irdma_pbl *iwpbl = &iwmr->iwpbl;3133	struct irdma_cqp_request *cqp_request;3134	struct cqp_cmds_info *cqp_info;3135	int status;3136 3137	/* Skip HW MR de-register when it is already de-registered3138	 * during an MR re-reregister and the re-registration fails3139	 */3140	if (!iwmr->is_hwreg)3141		return 0;3142 3143	cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);3144	if (!cqp_request)3145		return -ENOMEM;3146 3147	cqp_info = &cqp_request->info;3148	info = &cqp_info->in.u.dealloc_stag.info;3149	memset(info, 0, sizeof(*info));3150	info->pd_id = iwpd->sc_pd.pd_id;3151	info->stag_idx = ib_mr->rkey >> IRDMA_CQPSQ_STAG_IDX_S;3152	info->mr = true;3153	if (iwpbl->pbl_allocated)3154		info->dealloc_pbl = true;3155 3156	cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG;3157	cqp_info->post_sq = 1;3158	cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev;3159	cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request;3160	status = irdma_handle_cqp_op(iwdev->rf, cqp_request);3161	irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);3162	if (status)3163		return status;3164 3165	iwmr->is_hwreg = 0;3166	return 0;3167}3168 3169/*3170 * irdma_rereg_mr_trans - Re-register a user MR for a change translation.3171 * @iwmr: ptr of iwmr3172 * @start: virtual start address3173 * @len: length of mr3174 * @virt: virtual address3175 *3176 * Re-register a user memory region when a change translation is requested.3177 * Re-register a new region while reusing the stag from the original registration.3178 */3179static int irdma_rereg_mr_trans(struct irdma_mr *iwmr, u64 start, u64 len,3180				u64 virt)3181{3182	struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device);3183	struct irdma_pbl *iwpbl = &iwmr->iwpbl;3184	struct ib_pd *pd = iwmr->ibmr.pd;3185	struct ib_umem *region;3186	int err;3187 3188	region = ib_umem_get(pd->device, start, len, iwmr->access);3189	if (IS_ERR(region))3190		return PTR_ERR(region);3191 3192	iwmr->region = region;3193	iwmr->ibmr.iova = virt;3194	iwmr->ibmr.pd = pd;3195	iwmr->page_size = ib_umem_find_best_pgsz(region,3196				iwdev->rf->sc_dev.hw_attrs.page_size_cap,3197				virt);3198	if (unlikely(!iwmr->page_size)) {3199		err = -EOPNOTSUPP;3200		goto err;3201	}3202 3203	iwmr->len = region->length;3204	iwpbl->user_base = virt;3205	iwmr->page_cnt = ib_umem_num_dma_blocks(region, iwmr->page_size);3206 3207	err = irdma_reg_user_mr_type_mem(iwmr, iwmr->access, false);3208	if (err)3209		goto err;3210 3211	return 0;3212 3213err:3214	ib_umem_release(region);3215	return err;3216}3217 3218/*3219 *  irdma_rereg_user_mr - Re-Register a user memory region(MR)3220 *  @ibmr: ib mem to access iwarp mr pointer3221 *  @flags: bit mask to indicate which of the attr's of MR modified3222 *  @start: virtual start address3223 *  @len: length of mr3224 *  @virt: virtual address3225 *  @new_access: bit mask of access flags3226 *  @new_pd: ptr of pd3227 *  @udata: user data3228 *3229 *  Return:3230 *  NULL - Success, existing MR updated3231 *  ERR_PTR - error occurred3232 */3233static struct ib_mr *irdma_rereg_user_mr(struct ib_mr *ib_mr, int flags,3234					 u64 start, u64 len, u64 virt,3235					 int new_access, struct ib_pd *new_pd,3236					 struct ib_udata *udata)3237{3238	struct irdma_device *iwdev = to_iwdev(ib_mr->device);3239	struct irdma_mr *iwmr = to_iwmr(ib_mr);3240	struct irdma_pbl *iwpbl = &iwmr->iwpbl;3241	int ret;3242 3243	if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size)3244		return ERR_PTR(-EINVAL);3245 3246	if (flags & ~(IB_MR_REREG_TRANS | IB_MR_REREG_PD | IB_MR_REREG_ACCESS))3247		return ERR_PTR(-EOPNOTSUPP);3248 3249	ret = irdma_hwdereg_mr(ib_mr);3250	if (ret)3251		return ERR_PTR(ret);3252 3253	if (flags & IB_MR_REREG_ACCESS)3254		iwmr->access = new_access;3255 3256	if (flags & IB_MR_REREG_PD) {3257		iwmr->ibmr.pd = new_pd;3258		iwmr->ibmr.device = new_pd->device;3259	}3260 3261	if (flags & IB_MR_REREG_TRANS) {3262		if (iwpbl->pbl_allocated) {3263			irdma_free_pble(iwdev->rf->pble_rsrc,3264					&iwpbl->pble_alloc);3265			iwpbl->pbl_allocated = false;3266		}3267		if (iwmr->region) {3268			ib_umem_release(iwmr->region);3269			iwmr->region = NULL;3270		}3271 3272		ret = irdma_rereg_mr_trans(iwmr, start, len, virt);3273	} else3274		ret = irdma_hwreg_mr(iwdev, iwmr, iwmr->access);3275	if (ret)3276		return ERR_PTR(ret);3277 3278	return NULL;3279}3280 3281/**3282 * irdma_reg_phys_mr - register kernel physical memory3283 * @pd: ibpd pointer3284 * @addr: physical address of memory to register3285 * @size: size of memory to register3286 * @access: Access rights3287 * @iova_start: start of virtual address for physical buffers3288 */3289struct ib_mr *irdma_reg_phys_mr(struct ib_pd *pd, u64 addr, u64 size, int access,3290				u64 *iova_start)3291{3292	struct irdma_device *iwdev = to_iwdev(pd->device);3293	struct irdma_pbl *iwpbl;3294	struct irdma_mr *iwmr;3295	u32 stag;3296	int ret;3297 3298	iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);3299	if (!iwmr)3300		return ERR_PTR(-ENOMEM);3301 3302	iwmr->ibmr.pd = pd;3303	iwmr->ibmr.device = pd->device;3304	iwpbl = &iwmr->iwpbl;3305	iwpbl->iwmr = iwmr;3306	iwmr->type = IRDMA_MEMREG_TYPE_MEM;3307	iwpbl->user_base = *iova_start;3308	stag = irdma_create_stag(iwdev);3309	if (!stag) {3310		ret = -ENOMEM;3311		goto err;3312	}3313 3314	iwmr->stag = stag;3315	iwmr->ibmr.iova = *iova_start;3316	iwmr->ibmr.rkey = stag;3317	iwmr->ibmr.lkey = stag;3318	iwmr->page_cnt = 1;3319	iwmr->pgaddrmem[0] = addr;3320	iwmr->len = size;3321	iwmr->page_size = SZ_4K;3322	ret = irdma_hwreg_mr(iwdev, iwmr, access);3323	if (ret) {3324		irdma_free_stag(iwdev, stag);3325		goto err;3326	}3327 3328	return &iwmr->ibmr;3329 3330err:3331	kfree(iwmr);3332 3333	return ERR_PTR(ret);3334}3335 3336/**3337 * irdma_get_dma_mr - register physical mem3338 * @pd: ptr of pd3339 * @acc: access for memory3340 */3341static struct ib_mr *irdma_get_dma_mr(struct ib_pd *pd, int acc)3342{3343	u64 kva = 0;3344 3345	return irdma_reg_phys_mr(pd, 0, 0, acc, &kva);3346}3347 3348/**3349 * irdma_del_memlist - Deleting pbl list entries for CQ/QP3350 * @iwmr: iwmr for IB's user page addresses3351 * @ucontext: ptr to user context3352 */3353static void irdma_del_memlist(struct irdma_mr *iwmr,3354			      struct irdma_ucontext *ucontext)3355{3356	struct irdma_pbl *iwpbl = &iwmr->iwpbl;3357	unsigned long flags;3358 3359	switch (iwmr->type) {3360	case IRDMA_MEMREG_TYPE_CQ:3361		spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);3362		if (iwpbl->on_list) {3363			iwpbl->on_list = false;3364			list_del(&iwpbl->list);3365		}3366		spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);3367		break;3368	case IRDMA_MEMREG_TYPE_QP:3369		spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);3370		if (iwpbl->on_list) {3371			iwpbl->on_list = false;3372			list_del(&iwpbl->list);3373		}3374		spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);3375		break;3376	default:3377		break;3378	}3379}3380 3381/**3382 * irdma_dereg_mr - deregister mr3383 * @ib_mr: mr ptr for dereg3384 * @udata: user data3385 */3386static int irdma_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata)3387{3388	struct irdma_mr *iwmr = to_iwmr(ib_mr);3389	struct irdma_device *iwdev = to_iwdev(ib_mr->device);3390	struct irdma_pbl *iwpbl = &iwmr->iwpbl;3391	int ret;3392 3393	if (iwmr->type != IRDMA_MEMREG_TYPE_MEM) {3394		if (iwmr->region) {3395			struct irdma_ucontext *ucontext;3396 3397			ucontext = rdma_udata_to_drv_context(udata,3398						struct irdma_ucontext,3399						ibucontext);3400			irdma_del_memlist(iwmr, ucontext);3401		}3402		goto done;3403	}3404 3405	ret = irdma_hwdereg_mr(ib_mr);3406	if (ret)3407		return ret;3408 3409	irdma_free_stag(iwdev, iwmr->stag);3410done:3411	if (iwpbl->pbl_allocated)3412		irdma_free_pble(iwdev->rf->pble_rsrc, &iwpbl->pble_alloc);3413 3414	if (iwmr->region)3415		ib_umem_release(iwmr->region);3416 3417	kfree(iwmr);3418 3419	return 0;3420}3421 3422/**3423 * irdma_post_send -  kernel application wr3424 * @ibqp: qp ptr for wr3425 * @ib_wr: work request ptr3426 * @bad_wr: return of bad wr if err3427 */3428static int irdma_post_send(struct ib_qp *ibqp,3429			   const struct ib_send_wr *ib_wr,3430			   const struct ib_send_wr **bad_wr)3431{3432	struct irdma_qp *iwqp;3433	struct irdma_qp_uk *ukqp;3434	struct irdma_sc_dev *dev;3435	struct irdma_post_sq_info info;3436	int err = 0;3437	unsigned long flags;3438	bool inv_stag;3439	struct irdma_ah *ah;3440 3441	iwqp = to_iwqp(ibqp);3442	ukqp = &iwqp->sc_qp.qp_uk;3443	dev = &iwqp->iwdev->rf->sc_dev;3444 3445	spin_lock_irqsave(&iwqp->lock, flags);3446	while (ib_wr) {3447		memset(&info, 0, sizeof(info));3448		inv_stag = false;3449		info.wr_id = (ib_wr->wr_id);3450		if ((ib_wr->send_flags & IB_SEND_SIGNALED) || iwqp->sig_all)3451			info.signaled = true;3452		if (ib_wr->send_flags & IB_SEND_FENCE)3453			info.read_fence = true;3454		switch (ib_wr->opcode) {3455		case IB_WR_SEND_WITH_IMM:3456			if (ukqp->qp_caps & IRDMA_SEND_WITH_IMM) {3457				info.imm_data_valid = true;3458				info.imm_data = ntohl(ib_wr->ex.imm_data);3459			} else {3460				err = -EINVAL;3461				break;3462			}3463			fallthrough;3464		case IB_WR_SEND:3465		case IB_WR_SEND_WITH_INV:3466			if (ib_wr->opcode == IB_WR_SEND ||3467			    ib_wr->opcode == IB_WR_SEND_WITH_IMM) {3468				if (ib_wr->send_flags & IB_SEND_SOLICITED)3469					info.op_type = IRDMA_OP_TYPE_SEND_SOL;3470				else3471					info.op_type = IRDMA_OP_TYPE_SEND;3472			} else {3473				if (ib_wr->send_flags & IB_SEND_SOLICITED)3474					info.op_type = IRDMA_OP_TYPE_SEND_SOL_INV;3475				else3476					info.op_type = IRDMA_OP_TYPE_SEND_INV;3477				info.stag_to_inv = ib_wr->ex.invalidate_rkey;3478			}3479 3480			info.op.send.num_sges = ib_wr->num_sge;3481			info.op.send.sg_list = ib_wr->sg_list;3482			if (iwqp->ibqp.qp_type == IB_QPT_UD ||3483			    iwqp->ibqp.qp_type == IB_QPT_GSI) {3484				ah = to_iwah(ud_wr(ib_wr)->ah);3485				info.op.send.ah_id = ah->sc_ah.ah_info.ah_idx;3486				info.op.send.qkey = ud_wr(ib_wr)->remote_qkey;3487				info.op.send.dest_qp = ud_wr(ib_wr)->remote_qpn;3488			}3489 3490			if (ib_wr->send_flags & IB_SEND_INLINE)3491				err = irdma_uk_inline_send(ukqp, &info, false);3492			else3493				err = irdma_uk_send(ukqp, &info, false);3494			break;3495		case IB_WR_RDMA_WRITE_WITH_IMM:3496			if (ukqp->qp_caps & IRDMA_WRITE_WITH_IMM) {3497				info.imm_data_valid = true;3498				info.imm_data = ntohl(ib_wr->ex.imm_data);3499			} else {3500				err = -EINVAL;3501				break;3502			}3503			fallthrough;3504		case IB_WR_RDMA_WRITE:3505			if (ib_wr->send_flags & IB_SEND_SOLICITED)3506				info.op_type = IRDMA_OP_TYPE_RDMA_WRITE_SOL;3507			else3508				info.op_type = IRDMA_OP_TYPE_RDMA_WRITE;3509 3510			info.op.rdma_write.num_lo_sges = ib_wr->num_sge;3511			info.op.rdma_write.lo_sg_list = ib_wr->sg_list;3512			info.op.rdma_write.rem_addr.addr =3513				rdma_wr(ib_wr)->remote_addr;3514			info.op.rdma_write.rem_addr.lkey = rdma_wr(ib_wr)->rkey;3515			if (ib_wr->send_flags & IB_SEND_INLINE)3516				err = irdma_uk_inline_rdma_write(ukqp, &info, false);3517			else3518				err = irdma_uk_rdma_write(ukqp, &info, false);3519			break;3520		case IB_WR_RDMA_READ_WITH_INV:3521			inv_stag = true;3522			fallthrough;3523		case IB_WR_RDMA_READ:3524			if (ib_wr->num_sge >3525			    dev->hw_attrs.uk_attrs.max_hw_read_sges) {3526				err = -EINVAL;3527				break;3528			}3529			info.op_type = IRDMA_OP_TYPE_RDMA_READ;3530			info.op.rdma_read.rem_addr.addr = rdma_wr(ib_wr)->remote_addr;3531			info.op.rdma_read.rem_addr.lkey = rdma_wr(ib_wr)->rkey;3532			info.op.rdma_read.lo_sg_list = (void *)ib_wr->sg_list;3533			info.op.rdma_read.num_lo_sges = ib_wr->num_sge;3534			err = irdma_uk_rdma_read(ukqp, &info, inv_stag, false);3535			break;3536		case IB_WR_LOCAL_INV:3537			info.op_type = IRDMA_OP_TYPE_INV_STAG;3538			info.local_fence = info.read_fence;3539			info.op.inv_local_stag.target_stag = ib_wr->ex.invalidate_rkey;3540			err = irdma_uk_stag_local_invalidate(ukqp, &info, true);3541			break;3542		case IB_WR_REG_MR: {3543			struct irdma_mr *iwmr = to_iwmr(reg_wr(ib_wr)->mr);3544			struct irdma_pble_alloc *palloc = &iwmr->iwpbl.pble_alloc;3545			struct irdma_fast_reg_stag_info stag_info = {};3546 3547			stag_info.signaled = info.signaled;3548			stag_info.read_fence = info.read_fence;3549			stag_info.access_rights = irdma_get_mr_access(reg_wr(ib_wr)->access);3550			stag_info.stag_key = reg_wr(ib_wr)->key & 0xff;3551			stag_info.stag_idx = reg_wr(ib_wr)->key >> 8;3552			stag_info.page_size = reg_wr(ib_wr)->mr->page_size;3553			stag_info.wr_id = ib_wr->wr_id;3554			stag_info.addr_type = IRDMA_ADDR_TYPE_VA_BASED;3555			stag_info.va = (void *)(uintptr_t)iwmr->ibmr.iova;3556			stag_info.total_len = iwmr->ibmr.length;3557			stag_info.reg_addr_pa = *palloc->level1.addr;3558			stag_info.first_pm_pbl_index = palloc->level1.idx;3559			stag_info.local_fence = ib_wr->send_flags & IB_SEND_FENCE;3560			if (iwmr->npages > IRDMA_MIN_PAGES_PER_FMR)3561				stag_info.chunk_size = 1;3562			err = irdma_sc_mr_fast_register(&iwqp->sc_qp, &stag_info,3563							true);3564			break;3565		}3566		default:3567			err = -EINVAL;3568			ibdev_dbg(&iwqp->iwdev->ibdev,3569				  "VERBS: upost_send bad opcode = 0x%x\n",3570				  ib_wr->opcode);3571			break;3572		}3573 3574		if (err)3575			break;3576		ib_wr = ib_wr->next;3577	}3578 3579	if (!iwqp->flush_issued) {3580		if (iwqp->hw_iwarp_state <= IRDMA_QP_STATE_RTS)3581			irdma_uk_qp_post_wr(ukqp);3582		spin_unlock_irqrestore(&iwqp->lock, flags);3583	} else {3584		spin_unlock_irqrestore(&iwqp->lock, flags);3585		mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,3586				 msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));3587	}3588	if (err)3589		*bad_wr = ib_wr;3590 3591	return err;3592}3593 3594/**3595 * irdma_post_recv - post receive wr for kernel application3596 * @ibqp: ib qp pointer3597 * @ib_wr: work request for receive3598 * @bad_wr: bad wr caused an error3599 */3600static int irdma_post_recv(struct ib_qp *ibqp,3601			   const struct ib_recv_wr *ib_wr,3602			   const struct ib_recv_wr **bad_wr)3603{3604	struct irdma_qp *iwqp;3605	struct irdma_qp_uk *ukqp;3606	struct irdma_post_rq_info post_recv = {};3607	unsigned long flags;3608	int err = 0;3609 3610	iwqp = to_iwqp(ibqp);3611	ukqp = &iwqp->sc_qp.qp_uk;3612 3613	spin_lock_irqsave(&iwqp->lock, flags);3614	while (ib_wr) {3615		post_recv.num_sges = ib_wr->num_sge;3616		post_recv.wr_id = ib_wr->wr_id;3617		post_recv.sg_list = ib_wr->sg_list;3618		err = irdma_uk_post_receive(ukqp, &post_recv);3619		if (err) {3620			ibdev_dbg(&iwqp->iwdev->ibdev,3621				  "VERBS: post_recv err %d\n", err);3622			goto out;3623		}3624 3625		ib_wr = ib_wr->next;3626	}3627 3628out:3629	spin_unlock_irqrestore(&iwqp->lock, flags);3630	if (iwqp->flush_issued)3631		mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,3632				 msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));3633 3634	if (err)3635		*bad_wr = ib_wr;3636 3637	return err;3638}3639 3640/**3641 * irdma_flush_err_to_ib_wc_status - return change flush error code to IB status3642 * @opcode: iwarp flush code3643 */3644static enum ib_wc_status irdma_flush_err_to_ib_wc_status(enum irdma_flush_opcode opcode)3645{3646	switch (opcode) {3647	case FLUSH_PROT_ERR:3648		return IB_WC_LOC_PROT_ERR;3649	case FLUSH_REM_ACCESS_ERR:3650		return IB_WC_REM_ACCESS_ERR;3651	case FLUSH_LOC_QP_OP_ERR:3652		return IB_WC_LOC_QP_OP_ERR;3653	case FLUSH_REM_OP_ERR:3654		return IB_WC_REM_OP_ERR;3655	case FLUSH_LOC_LEN_ERR:3656		return IB_WC_LOC_LEN_ERR;3657	case FLUSH_GENERAL_ERR:3658		return IB_WC_WR_FLUSH_ERR;3659	case FLUSH_RETRY_EXC_ERR:3660		return IB_WC_RETRY_EXC_ERR;3661	case FLUSH_MW_BIND_ERR:3662		return IB_WC_MW_BIND_ERR;3663	case FLUSH_REM_INV_REQ_ERR:3664		return IB_WC_REM_INV_REQ_ERR;3665	case FLUSH_FATAL_ERR:3666	default:3667		return IB_WC_FATAL_ERR;3668	}3669}3670 3671/**3672 * irdma_process_cqe - process cqe info3673 * @entry: processed cqe3674 * @cq_poll_info: cqe info3675 */3676static void irdma_process_cqe(struct ib_wc *entry,3677			      struct irdma_cq_poll_info *cq_poll_info)3678{3679	struct irdma_sc_qp *qp;3680 3681	entry->wc_flags = 0;3682	entry->pkey_index = 0;3683	entry->wr_id = cq_poll_info->wr_id;3684 3685	qp = cq_poll_info->qp_handle;3686	entry->qp = qp->qp_uk.back_qp;3687 3688	if (cq_poll_info->error) {3689		entry->status = (cq_poll_info->comp_status == IRDMA_COMPL_STATUS_FLUSHED) ?3690				irdma_flush_err_to_ib_wc_status(cq_poll_info->minor_err) : IB_WC_GENERAL_ERR;3691 3692		entry->vendor_err = cq_poll_info->major_err << 16 |3693				    cq_poll_info->minor_err;3694	} else {3695		entry->status = IB_WC_SUCCESS;3696		if (cq_poll_info->imm_valid) {3697			entry->ex.imm_data = htonl(cq_poll_info->imm_data);3698			entry->wc_flags |= IB_WC_WITH_IMM;3699		}3700		if (cq_poll_info->ud_smac_valid) {3701			ether_addr_copy(entry->smac, cq_poll_info->ud_smac);3702			entry->wc_flags |= IB_WC_WITH_SMAC;3703		}3704 3705		if (cq_poll_info->ud_vlan_valid) {3706			u16 vlan = cq_poll_info->ud_vlan & VLAN_VID_MASK;3707 3708			entry->sl = cq_poll_info->ud_vlan >> VLAN_PRIO_SHIFT;3709			if (vlan) {3710				entry->vlan_id = vlan;3711				entry->wc_flags |= IB_WC_WITH_VLAN;3712			}3713		} else {3714			entry->sl = 0;3715		}3716	}3717 3718	if (cq_poll_info->q_type == IRDMA_CQE_QTYPE_SQ) {3719		set_ib_wc_op_sq(cq_poll_info, entry);3720	} else {3721		set_ib_wc_op_rq(cq_poll_info, entry,3722				qp->qp_uk.qp_caps & IRDMA_SEND_WITH_IMM);3723		if (qp->qp_uk.qp_type != IRDMA_QP_TYPE_ROCE_UD &&3724		    cq_poll_info->stag_invalid_set) {3725			entry->ex.invalidate_rkey = cq_poll_info->inv_stag;3726			entry->wc_flags |= IB_WC_WITH_INVALIDATE;3727		}3728	}3729 3730	if (qp->qp_uk.qp_type == IRDMA_QP_TYPE_ROCE_UD) {3731		entry->src_qp = cq_poll_info->ud_src_qpn;3732		entry->slid = 0;3733		entry->wc_flags |=3734			(IB_WC_GRH | IB_WC_WITH_NETWORK_HDR_TYPE);3735		entry->network_hdr_type = cq_poll_info->ipv4 ?3736						  RDMA_NETWORK_IPV4 :3737						  RDMA_NETWORK_IPV6;3738	} else {3739		entry->src_qp = cq_poll_info->qp_id;3740	}3741 3742	entry->byte_len = cq_poll_info->bytes_xfered;3743}3744 3745/**3746 * irdma_poll_one - poll one entry of the CQ3747 * @ukcq: ukcq to poll3748 * @cur_cqe: current CQE info to be filled in3749 * @entry: ibv_wc object to be filled for non-extended CQ or NULL for extended CQ3750 *3751 * Returns the internal irdma device error code or 0 on success3752 */3753static inline int irdma_poll_one(struct irdma_cq_uk *ukcq,3754				 struct irdma_cq_poll_info *cur_cqe,3755				 struct ib_wc *entry)3756{3757	int ret = irdma_uk_cq_poll_cmpl(ukcq, cur_cqe);3758 3759	if (ret)3760		return ret;3761 3762	irdma_process_cqe(entry, cur_cqe);3763 3764	return 0;3765}3766 3767/**3768 * __irdma_poll_cq - poll cq for completion (kernel apps)3769 * @iwcq: cq to poll3770 * @num_entries: number of entries to poll3771 * @entry: wr of a completed entry3772 */3773static int __irdma_poll_cq(struct irdma_cq *iwcq, int num_entries, struct ib_wc *entry)3774{3775	struct list_head *tmp_node, *list_node;3776	struct irdma_cq_buf *last_buf = NULL;3777	struct irdma_cq_poll_info *cur_cqe = &iwcq->cur_cqe;3778	struct irdma_cq_buf *cq_buf;3779	int ret;3780	struct irdma_device *iwdev;3781	struct irdma_cq_uk *ukcq;3782	bool cq_new_cqe = false;3783	int resized_bufs = 0;3784	int npolled = 0;3785 3786	iwdev = to_iwdev(iwcq->ibcq.device);3787	ukcq = &iwcq->sc_cq.cq_uk;3788 3789	/* go through the list of previously resized CQ buffers */3790	list_for_each_safe(list_node, tmp_node, &iwcq->resize_list) {3791		cq_buf = container_of(list_node, struct irdma_cq_buf, list);3792		while (npolled < num_entries) {3793			ret = irdma_poll_one(&cq_buf->cq_uk, cur_cqe, entry + npolled);3794			if (!ret) {3795				++npolled;3796				cq_new_cqe = true;3797				continue;3798			}3799			if (ret == -ENOENT)3800				break;3801			 /* QP using the CQ is destroyed. Skip reporting this CQE */3802			if (ret == -EFAULT) {3803				cq_new_cqe = true;3804				continue;3805			}3806			goto error;3807		}3808 3809		/* save the resized CQ buffer which received the last cqe */3810		if (cq_new_cqe)3811			last_buf = cq_buf;3812		cq_new_cqe = false;3813	}3814 3815	/* check the current CQ for new cqes */3816	while (npolled < num_entries) {3817		ret = irdma_poll_one(ukcq, cur_cqe, entry + npolled);3818		if (ret == -ENOENT) {3819			ret = irdma_generated_cmpls(iwcq, cur_cqe);3820			if (!ret)3821				irdma_process_cqe(entry + npolled, cur_cqe);3822		}3823		if (!ret) {3824			++npolled;3825			cq_new_cqe = true;3826			continue;3827		}3828 3829		if (ret == -ENOENT)3830			break;3831		/* QP using the CQ is destroyed. Skip reporting this CQE */3832		if (ret == -EFAULT) {3833			cq_new_cqe = true;3834			continue;3835		}3836		goto error;3837	}3838 3839	if (cq_new_cqe)3840		/* all previous CQ resizes are complete */3841		resized_bufs = irdma_process_resize_list(iwcq, iwdev, NULL);3842	else if (last_buf)3843		/* only CQ resizes up to the last_buf are complete */3844		resized_bufs = irdma_process_resize_list(iwcq, iwdev, last_buf);3845	if (resized_bufs)3846		/* report to the HW the number of complete CQ resizes */3847		irdma_uk_cq_set_resized_cnt(ukcq, resized_bufs);3848 3849	return npolled;3850error:3851	ibdev_dbg(&iwdev->ibdev, "%s: Error polling CQ, irdma_err: %d\n",3852		  __func__, ret);3853 3854	return ret;3855}3856 3857/**3858 * irdma_poll_cq - poll cq for completion (kernel apps)3859 * @ibcq: cq to poll3860 * @num_entries: number of entries to poll3861 * @entry: wr of a completed entry3862 */3863static int irdma_poll_cq(struct ib_cq *ibcq, int num_entries,3864			 struct ib_wc *entry)3865{3866	struct irdma_cq *iwcq;3867	unsigned long flags;3868	int ret;3869 3870	iwcq = to_iwcq(ibcq);3871 3872	spin_lock_irqsave(&iwcq->lock, flags);3873	ret = __irdma_poll_cq(iwcq, num_entries, entry);3874	spin_unlock_irqrestore(&iwcq->lock, flags);3875 3876	return ret;3877}3878 3879/**3880 * irdma_req_notify_cq - arm cq kernel application3881 * @ibcq: cq to arm3882 * @notify_flags: notofication flags3883 */3884static int irdma_req_notify_cq(struct ib_cq *ibcq,3885			       enum ib_cq_notify_flags notify_flags)3886{3887	struct irdma_cq *iwcq;3888	struct irdma_cq_uk *ukcq;3889	unsigned long flags;3890	enum irdma_cmpl_notify cq_notify;3891	bool promo_event = false;3892	int ret = 0;3893 3894	cq_notify = notify_flags == IB_CQ_SOLICITED ?3895		    IRDMA_CQ_COMPL_SOLICITED : IRDMA_CQ_COMPL_EVENT;3896	iwcq = to_iwcq(ibcq);3897	ukcq = &iwcq->sc_cq.cq_uk;3898 3899	spin_lock_irqsave(&iwcq->lock, flags);3900	/* Only promote to arm the CQ for any event if the last arm event was solicited. */3901	if (iwcq->last_notify == IRDMA_CQ_COMPL_SOLICITED && notify_flags != IB_CQ_SOLICITED)3902		promo_event = true;3903 3904	if (!atomic_cmpxchg(&iwcq->armed, 0, 1) || promo_event) {3905		iwcq->last_notify = cq_notify;3906		irdma_uk_cq_request_notification(ukcq, cq_notify);3907	}3908 3909	if ((notify_flags & IB_CQ_REPORT_MISSED_EVENTS) &&3910	    (!irdma_cq_empty(iwcq) || !list_empty(&iwcq->cmpl_generated)))3911		ret = 1;3912	spin_unlock_irqrestore(&iwcq->lock, flags);3913 3914	return ret;3915}3916 3917static int irdma_roce_port_immutable(struct ib_device *ibdev, u32 port_num,3918				     struct ib_port_immutable *immutable)3919{3920	struct ib_port_attr attr;3921	int err;3922 3923	immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;3924	err = ib_query_port(ibdev, port_num, &attr);3925	if (err)3926		return err;3927 3928	immutable->max_mad_size = IB_MGMT_MAD_SIZE;3929	immutable->pkey_tbl_len = attr.pkey_tbl_len;3930	immutable->gid_tbl_len = attr.gid_tbl_len;3931 3932	return 0;3933}3934 3935static int irdma_iw_port_immutable(struct ib_device *ibdev, u32 port_num,3936				   struct ib_port_immutable *immutable)3937{3938	struct ib_port_attr attr;3939	int err;3940 3941	immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;3942	err = ib_query_port(ibdev, port_num, &attr);3943	if (err)3944		return err;3945	immutable->gid_tbl_len = attr.gid_tbl_len;3946 3947	return 0;3948}3949 3950static const struct rdma_stat_desc irdma_hw_stat_names[] = {3951	/* gen1 - 32-bit */3952	[IRDMA_HW_STAT_INDEX_IP4RXDISCARD].name		= "ip4InDiscards",3953	[IRDMA_HW_STAT_INDEX_IP4RXTRUNC].name		= "ip4InTruncatedPkts",3954	[IRDMA_HW_STAT_INDEX_IP4TXNOROUTE].name		= "ip4OutNoRoutes",3955	[IRDMA_HW_STAT_INDEX_IP6RXDISCARD].name		= "ip6InDiscards",3956	[IRDMA_HW_STAT_INDEX_IP6RXTRUNC].name		= "ip6InTruncatedPkts",3957	[IRDMA_HW_STAT_INDEX_IP6TXNOROUTE].name		= "ip6OutNoRoutes",3958	[IRDMA_HW_STAT_INDEX_TCPRTXSEG].name		= "tcpRetransSegs",3959	[IRDMA_HW_STAT_INDEX_TCPRXOPTERR].name		= "tcpInOptErrors",3960	[IRDMA_HW_STAT_INDEX_TCPRXPROTOERR].name	= "tcpInProtoErrors",3961	[IRDMA_HW_STAT_INDEX_RXVLANERR].name		= "rxVlanErrors",3962	/* gen1 - 64-bit */3963	[IRDMA_HW_STAT_INDEX_IP4RXOCTS].name		= "ip4InOctets",3964	[IRDMA_HW_STAT_INDEX_IP4RXPKTS].name		= "ip4InPkts",3965	[IRDMA_HW_STAT_INDEX_IP4RXFRAGS].name		= "ip4InReasmRqd",3966	[IRDMA_HW_STAT_INDEX_IP4RXMCPKTS].name		= "ip4InMcastPkts",3967	[IRDMA_HW_STAT_INDEX_IP4TXOCTS].name		= "ip4OutOctets",3968	[IRDMA_HW_STAT_INDEX_IP4TXPKTS].name		= "ip4OutPkts",3969	[IRDMA_HW_STAT_INDEX_IP4TXFRAGS].name		= "ip4OutSegRqd",3970	[IRDMA_HW_STAT_INDEX_IP4TXMCPKTS].name		= "ip4OutMcastPkts",3971	[IRDMA_HW_STAT_INDEX_IP6RXOCTS].name		= "ip6InOctets",3972	[IRDMA_HW_STAT_INDEX_IP6RXPKTS].name		= "ip6InPkts",3973	[IRDMA_HW_STAT_INDEX_IP6RXFRAGS].name		= "ip6InReasmRqd",3974	[IRDMA_HW_STAT_INDEX_IP6RXMCPKTS].name		= "ip6InMcastPkts",3975	[IRDMA_HW_STAT_INDEX_IP6TXOCTS].name		= "ip6OutOctets",3976	[IRDMA_HW_STAT_INDEX_IP6TXPKTS].name		= "ip6OutPkts",3977	[IRDMA_HW_STAT_INDEX_IP6TXFRAGS].name		= "ip6OutSegRqd",3978	[IRDMA_HW_STAT_INDEX_IP6TXMCPKTS].name		= "ip6OutMcastPkts",3979	[IRDMA_HW_STAT_INDEX_TCPRXSEGS].name		= "tcpInSegs",3980	[IRDMA_HW_STAT_INDEX_TCPTXSEG].name		= "tcpOutSegs",3981	[IRDMA_HW_STAT_INDEX_RDMARXRDS].name		= "iwInRdmaReads",3982	[IRDMA_HW_STAT_INDEX_RDMARXSNDS].name		= "iwInRdmaSends",3983	[IRDMA_HW_STAT_INDEX_RDMARXWRS].name		= "iwInRdmaWrites",3984	[IRDMA_HW_STAT_INDEX_RDMATXRDS].name		= "iwOutRdmaReads",3985	[IRDMA_HW_STAT_INDEX_RDMATXSNDS].name		= "iwOutRdmaSends",3986	[IRDMA_HW_STAT_INDEX_RDMATXWRS].name		= "iwOutRdmaWrites",3987	[IRDMA_HW_STAT_INDEX_RDMAVBND].name		= "iwRdmaBnd",3988	[IRDMA_HW_STAT_INDEX_RDMAVINV].name		= "iwRdmaInv",3989 3990	/* gen2 - 32-bit */3991	[IRDMA_HW_STAT_INDEX_RXRPCNPHANDLED].name	= "cnpHandled",3992	[IRDMA_HW_STAT_INDEX_RXRPCNPIGNORED].name	= "cnpIgnored",3993	[IRDMA_HW_STAT_INDEX_TXNPCNPSENT].name		= "cnpSent",3994	/* gen2 - 64-bit */3995	[IRDMA_HW_STAT_INDEX_IP4RXMCOCTS].name		= "ip4InMcastOctets",3996	[IRDMA_HW_STAT_INDEX_IP4TXMCOCTS].name		= "ip4OutMcastOctets",3997	[IRDMA_HW_STAT_INDEX_IP6RXMCOCTS].name		= "ip6InMcastOctets",3998	[IRDMA_HW_STAT_INDEX_IP6TXMCOCTS].name		= "ip6OutMcastOctets",3999	[IRDMA_HW_STAT_INDEX_UDPRXPKTS].name		= "RxUDP",4000	[IRDMA_HW_STAT_INDEX_UDPTXPKTS].name		= "TxUDP",4001	[IRDMA_HW_STAT_INDEX_RXNPECNMARKEDPKTS].name	= "RxECNMrkd",4002 4003};4004 4005static void irdma_get_dev_fw_str(struct ib_device *dev, char *str)4006{4007	struct irdma_device *iwdev = to_iwdev(dev);4008 4009	snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u",4010		 irdma_fw_major_ver(&iwdev->rf->sc_dev),4011		 irdma_fw_minor_ver(&iwdev->rf->sc_dev));4012}4013 4014/**4015 * irdma_alloc_hw_port_stats - Allocate a hw stats structure4016 * @ibdev: device pointer from stack4017 * @port_num: port number4018 */4019static struct rdma_hw_stats *irdma_alloc_hw_port_stats(struct ib_device *ibdev,4020						       u32 port_num)4021{4022	struct irdma_device *iwdev = to_iwdev(ibdev);4023	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;4024 4025	int num_counters = dev->hw_attrs.max_stat_idx;4026	unsigned long lifespan = RDMA_HW_STATS_DEFAULT_LIFESPAN;4027 4028	return rdma_alloc_hw_stats_struct(irdma_hw_stat_names, num_counters,4029					  lifespan);4030}4031 4032/**4033 * irdma_get_hw_stats - Populates the rdma_hw_stats structure4034 * @ibdev: device pointer from stack4035 * @stats: stats pointer from stack4036 * @port_num: port number4037 * @index: which hw counter the stack is requesting we update4038 */4039static int irdma_get_hw_stats(struct ib_device *ibdev,4040			      struct rdma_hw_stats *stats, u32 port_num,4041			      int index)4042{4043	struct irdma_device *iwdev = to_iwdev(ibdev);4044	struct irdma_dev_hw_stats *hw_stats = &iwdev->vsi.pestat->hw_stats;4045 4046	if (iwdev->rf->rdma_ver >= IRDMA_GEN_2)4047		irdma_cqp_gather_stats_cmd(&iwdev->rf->sc_dev, iwdev->vsi.pestat, true);4048	else4049		irdma_cqp_gather_stats_gen1(&iwdev->rf->sc_dev, iwdev->vsi.pestat);4050 4051	memcpy(&stats->value[0], hw_stats, sizeof(u64) * stats->num_counters);4052 4053	return stats->num_counters;4054}4055 4056/**4057 * irdma_query_gid - Query port GID4058 * @ibdev: device pointer from stack4059 * @port: port number4060 * @index: Entry index4061 * @gid: Global ID4062 */4063static int irdma_query_gid(struct ib_device *ibdev, u32 port, int index,4064			   union ib_gid *gid)4065{4066	struct irdma_device *iwdev = to_iwdev(ibdev);4067 4068	memset(gid->raw, 0, sizeof(gid->raw));4069	ether_addr_copy(gid->raw, iwdev->netdev->dev_addr);4070 4071	return 0;4072}4073 4074/**4075 * mcast_list_add -  Add a new mcast item to list4076 * @rf: RDMA PCI function4077 * @new_elem: pointer to element to add4078 */4079static void mcast_list_add(struct irdma_pci_f *rf,4080			   struct mc_table_list *new_elem)4081{4082	list_add(&new_elem->list, &rf->mc_qht_list.list);4083}4084 4085/**4086 * mcast_list_del - Remove an mcast item from list4087 * @mc_qht_elem: pointer to mcast table list element4088 */4089static void mcast_list_del(struct mc_table_list *mc_qht_elem)4090{4091	if (mc_qht_elem)4092		list_del(&mc_qht_elem->list);4093}4094 4095/**4096 * mcast_list_lookup_ip - Search mcast list for address4097 * @rf: RDMA PCI function4098 * @ip_mcast: pointer to mcast IP address4099 */4100static struct mc_table_list *mcast_list_lookup_ip(struct irdma_pci_f *rf,4101						  u32 *ip_mcast)4102{4103	struct mc_table_list *mc_qht_el;4104	struct list_head *pos, *q;4105 4106	list_for_each_safe (pos, q, &rf->mc_qht_list.list) {4107		mc_qht_el = list_entry(pos, struct mc_table_list, list);4108		if (!memcmp(mc_qht_el->mc_info.dest_ip, ip_mcast,4109			    sizeof(mc_qht_el->mc_info.dest_ip)))4110			return mc_qht_el;4111	}4112 4113	return NULL;4114}4115 4116/**4117 * irdma_mcast_cqp_op - perform a mcast cqp operation4118 * @iwdev: irdma device4119 * @mc_grp_ctx: mcast group info4120 * @op: operation4121 *4122 * returns error status4123 */4124static int irdma_mcast_cqp_op(struct irdma_device *iwdev,4125			      struct irdma_mcast_grp_info *mc_grp_ctx, u8 op)4126{4127	struct cqp_cmds_info *cqp_info;4128	struct irdma_cqp_request *cqp_request;4129	int status;4130 4131	cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);4132	if (!cqp_request)4133		return -ENOMEM;4134 4135	cqp_request->info.in.u.mc_create.info = *mc_grp_ctx;4136	cqp_info = &cqp_request->info;4137	cqp_info->cqp_cmd = op;4138	cqp_info->post_sq = 1;4139	cqp_info->in.u.mc_create.scratch = (uintptr_t)cqp_request;4140	cqp_info->in.u.mc_create.cqp = &iwdev->rf->cqp.sc_cqp;4141	status = irdma_handle_cqp_op(iwdev->rf, cqp_request);4142	irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);4143 4144	return status;4145}4146 4147/**4148 * irdma_mcast_mac - Get the multicast MAC for an IP address4149 * @ip_addr: IPv4 or IPv6 address4150 * @mac: pointer to result MAC address4151 * @ipv4: flag indicating IPv4 or IPv64152 *4153 */4154void irdma_mcast_mac(u32 *ip_addr, u8 *mac, bool ipv4)4155{4156	u8 *ip = (u8 *)ip_addr;4157 4158	if (ipv4) {4159		unsigned char mac4[ETH_ALEN] = {0x01, 0x00, 0x5E, 0x00,4160						0x00, 0x00};4161 4162		mac4[3] = ip[2] & 0x7F;4163		mac4[4] = ip[1];4164		mac4[5] = ip[0];4165		ether_addr_copy(mac, mac4);4166	} else {4167		unsigned char mac6[ETH_ALEN] = {0x33, 0x33, 0x00, 0x00,4168						0x00, 0x00};4169 4170		mac6[2] = ip[3];4171		mac6[3] = ip[2];4172		mac6[4] = ip[1];4173		mac6[5] = ip[0];4174		ether_addr_copy(mac, mac6);4175	}4176}4177 4178/**4179 * irdma_attach_mcast - attach a qp to a multicast group4180 * @ibqp: ptr to qp4181 * @ibgid: pointer to global ID4182 * @lid: local ID4183 *4184 * returns error status4185 */4186static int irdma_attach_mcast(struct ib_qp *ibqp, union ib_gid *ibgid, u16 lid)4187{4188	struct irdma_qp *iwqp = to_iwqp(ibqp);4189	struct irdma_device *iwdev = iwqp->iwdev;4190	struct irdma_pci_f *rf = iwdev->rf;4191	struct mc_table_list *mc_qht_elem;4192	struct irdma_mcast_grp_ctx_entry_info mcg_info = {};4193	unsigned long flags;4194	u32 ip_addr[4] = {};4195	u32 mgn;4196	u32 no_mgs;4197	int ret = 0;4198	bool ipv4;4199	u16 vlan_id;4200	union irdma_sockaddr sgid_addr;4201	unsigned char dmac[ETH_ALEN];4202 4203	rdma_gid2ip((struct sockaddr *)&sgid_addr, ibgid);4204 4205	if (!ipv6_addr_v4mapped((struct in6_addr *)ibgid)) {4206		irdma_copy_ip_ntohl(ip_addr,4207				    sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);4208		irdma_get_vlan_mac_ipv6(ip_addr, &vlan_id, NULL);4209		ipv4 = false;4210		ibdev_dbg(&iwdev->ibdev,4211			  "VERBS: qp_id=%d, IP6address=%pI6\n", ibqp->qp_num,4212			  ip_addr);4213		irdma_mcast_mac(ip_addr, dmac, false);4214	} else {4215		ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr);4216		ipv4 = true;4217		vlan_id = irdma_get_vlan_ipv4(ip_addr);4218		irdma_mcast_mac(ip_addr, dmac, true);4219		ibdev_dbg(&iwdev->ibdev,4220			  "VERBS: qp_id=%d, IP4address=%pI4, MAC=%pM\n",4221			  ibqp->qp_num, ip_addr, dmac);4222	}4223 4224	spin_lock_irqsave(&rf->qh_list_lock, flags);4225	mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr);4226	if (!mc_qht_elem) {4227		struct irdma_dma_mem *dma_mem_mc;4228 4229		spin_unlock_irqrestore(&rf->qh_list_lock, flags);4230		mc_qht_elem = kzalloc(sizeof(*mc_qht_elem), GFP_KERNEL);4231		if (!mc_qht_elem)4232			return -ENOMEM;4233 4234		mc_qht_elem->mc_info.ipv4_valid = ipv4;4235		memcpy(mc_qht_elem->mc_info.dest_ip, ip_addr,4236		       sizeof(mc_qht_elem->mc_info.dest_ip));4237		ret = irdma_alloc_rsrc(rf, rf->allocated_mcgs, rf->max_mcg,4238				       &mgn, &rf->next_mcg);4239		if (ret) {4240			kfree(mc_qht_elem);4241			return -ENOMEM;4242		}4243 4244		mc_qht_elem->mc_info.mgn = mgn;4245		dma_mem_mc = &mc_qht_elem->mc_grp_ctx.dma_mem_mc;4246		dma_mem_mc->size = ALIGN(sizeof(u64) * IRDMA_MAX_MGS_PER_CTX,4247					 IRDMA_HW_PAGE_SIZE);4248		dma_mem_mc->va = dma_alloc_coherent(rf->hw.device,4249						    dma_mem_mc->size,4250						    &dma_mem_mc->pa,4251						    GFP_KERNEL);4252		if (!dma_mem_mc->va) {4253			irdma_free_rsrc(rf, rf->allocated_mcgs, mgn);4254			kfree(mc_qht_elem);4255			return -ENOMEM;4256		}4257 4258		mc_qht_elem->mc_grp_ctx.mg_id = (u16)mgn;4259		memcpy(mc_qht_elem->mc_grp_ctx.dest_ip_addr, ip_addr,4260		       sizeof(mc_qht_elem->mc_grp_ctx.dest_ip_addr));4261		mc_qht_elem->mc_grp_ctx.ipv4_valid = ipv4;4262		mc_qht_elem->mc_grp_ctx.vlan_id = vlan_id;4263		if (vlan_id < VLAN_N_VID)4264			mc_qht_elem->mc_grp_ctx.vlan_valid = true;4265		mc_qht_elem->mc_grp_ctx.hmc_fcn_id = iwdev->rf->sc_dev.hmc_fn_id;4266		mc_qht_elem->mc_grp_ctx.qs_handle =4267			iwqp->sc_qp.vsi->qos[iwqp->sc_qp.user_pri].qs_handle;4268		ether_addr_copy(mc_qht_elem->mc_grp_ctx.dest_mac_addr, dmac);4269 4270		spin_lock_irqsave(&rf->qh_list_lock, flags);4271		mcast_list_add(rf, mc_qht_elem);4272	} else {4273		if (mc_qht_elem->mc_grp_ctx.no_of_mgs ==4274		    IRDMA_MAX_MGS_PER_CTX) {4275			spin_unlock_irqrestore(&rf->qh_list_lock, flags);4276			return -ENOMEM;4277		}4278	}4279 4280	mcg_info.qp_id = iwqp->ibqp.qp_num;4281	no_mgs = mc_qht_elem->mc_grp_ctx.no_of_mgs;4282	irdma_sc_add_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info);4283	spin_unlock_irqrestore(&rf->qh_list_lock, flags);4284 4285	/* Only if there is a change do we need to modify or create */4286	if (!no_mgs) {4287		ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,4288					 IRDMA_OP_MC_CREATE);4289	} else if (no_mgs != mc_qht_elem->mc_grp_ctx.no_of_mgs) {4290		ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,4291					 IRDMA_OP_MC_MODIFY);4292	} else {4293		return 0;4294	}4295 4296	if (ret)4297		goto error;4298 4299	return 0;4300 4301error:4302	irdma_sc_del_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info);4303	if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) {4304		mcast_list_del(mc_qht_elem);4305		dma_free_coherent(rf->hw.device,4306				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.size,4307				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.va,4308				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.pa);4309		mc_qht_elem->mc_grp_ctx.dma_mem_mc.va = NULL;4310		irdma_free_rsrc(rf, rf->allocated_mcgs,4311				mc_qht_elem->mc_grp_ctx.mg_id);4312		kfree(mc_qht_elem);4313	}4314 4315	return ret;4316}4317 4318/**4319 * irdma_detach_mcast - detach a qp from a multicast group4320 * @ibqp: ptr to qp4321 * @ibgid: pointer to global ID4322 * @lid: local ID4323 *4324 * returns error status4325 */4326static int irdma_detach_mcast(struct ib_qp *ibqp, union ib_gid *ibgid, u16 lid)4327{4328	struct irdma_qp *iwqp = to_iwqp(ibqp);4329	struct irdma_device *iwdev = iwqp->iwdev;4330	struct irdma_pci_f *rf = iwdev->rf;4331	u32 ip_addr[4] = {};4332	struct mc_table_list *mc_qht_elem;4333	struct irdma_mcast_grp_ctx_entry_info mcg_info = {};4334	int ret;4335	unsigned long flags;4336	union irdma_sockaddr sgid_addr;4337 4338	rdma_gid2ip((struct sockaddr *)&sgid_addr, ibgid);4339	if (!ipv6_addr_v4mapped((struct in6_addr *)ibgid))4340		irdma_copy_ip_ntohl(ip_addr,4341				    sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);4342	else4343		ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr);4344 4345	spin_lock_irqsave(&rf->qh_list_lock, flags);4346	mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr);4347	if (!mc_qht_elem) {4348		spin_unlock_irqrestore(&rf->qh_list_lock, flags);4349		ibdev_dbg(&iwdev->ibdev,4350			  "VERBS: address not found MCG\n");4351		return 0;4352	}4353 4354	mcg_info.qp_id = iwqp->ibqp.qp_num;4355	irdma_sc_del_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info);4356	if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) {4357		mcast_list_del(mc_qht_elem);4358		spin_unlock_irqrestore(&rf->qh_list_lock, flags);4359		ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,4360					 IRDMA_OP_MC_DESTROY);4361		if (ret) {4362			ibdev_dbg(&iwdev->ibdev,4363				  "VERBS: failed MC_DESTROY MCG\n");4364			spin_lock_irqsave(&rf->qh_list_lock, flags);4365			mcast_list_add(rf, mc_qht_elem);4366			spin_unlock_irqrestore(&rf->qh_list_lock, flags);4367			return -EAGAIN;4368		}4369 4370		dma_free_coherent(rf->hw.device,4371				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.size,4372				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.va,4373				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.pa);4374		mc_qht_elem->mc_grp_ctx.dma_mem_mc.va = NULL;4375		irdma_free_rsrc(rf, rf->allocated_mcgs,4376				mc_qht_elem->mc_grp_ctx.mg_id);4377		kfree(mc_qht_elem);4378	} else {4379		spin_unlock_irqrestore(&rf->qh_list_lock, flags);4380		ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,4381					 IRDMA_OP_MC_MODIFY);4382		if (ret) {4383			ibdev_dbg(&iwdev->ibdev,4384				  "VERBS: failed Modify MCG\n");4385			return ret;4386		}4387	}4388 4389	return 0;4390}4391 4392static int irdma_create_hw_ah(struct irdma_device *iwdev, struct irdma_ah *ah, bool sleep)4393{4394	struct irdma_pci_f *rf = iwdev->rf;4395	int err;4396 4397	err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah, &ah->sc_ah.ah_info.ah_idx,4398			       &rf->next_ah);4399	if (err)4400		return err;4401 4402	err = irdma_ah_cqp_op(rf, &ah->sc_ah, IRDMA_OP_AH_CREATE, sleep,4403			      irdma_gsi_ud_qp_ah_cb, &ah->sc_ah);4404 4405	if (err) {4406		ibdev_dbg(&iwdev->ibdev, "VERBS: CQP-OP Create AH fail");4407		goto err_ah_create;4408	}4409 4410	if (!sleep) {4411		int cnt = CQP_COMPL_WAIT_TIME_MS * CQP_TIMEOUT_THRESHOLD;4412 4413		do {4414			irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);4415			mdelay(1);4416		} while (!ah->sc_ah.ah_info.ah_valid && --cnt);4417 4418		if (!cnt) {4419			ibdev_dbg(&iwdev->ibdev, "VERBS: CQP create AH timed out");4420			err = -ETIMEDOUT;4421			goto err_ah_create;4422		}4423	}4424	return 0;4425 4426err_ah_create:4427	irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, ah->sc_ah.ah_info.ah_idx);4428 4429	return err;4430}4431 4432static int irdma_setup_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *attr)4433{4434	struct irdma_pd *pd = to_iwpd(ibah->pd);4435	struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah);4436	struct rdma_ah_attr *ah_attr = attr->ah_attr;4437	const struct ib_gid_attr *sgid_attr;4438	struct irdma_device *iwdev = to_iwdev(ibah->pd->device);4439	struct irdma_pci_f *rf = iwdev->rf;4440	struct irdma_sc_ah *sc_ah;4441	struct irdma_ah_info *ah_info;4442	union irdma_sockaddr sgid_addr, dgid_addr;4443	int err;4444	u8 dmac[ETH_ALEN];4445 4446	ah->pd = pd;4447	sc_ah = &ah->sc_ah;4448	sc_ah->ah_info.vsi = &iwdev->vsi;4449	irdma_sc_init_ah(&rf->sc_dev, sc_ah);4450	ah->sgid_index = ah_attr->grh.sgid_index;4451	sgid_attr = ah_attr->grh.sgid_attr;4452	memcpy(&ah->dgid, &ah_attr->grh.dgid, sizeof(ah->dgid));4453	rdma_gid2ip((struct sockaddr *)&sgid_addr, &sgid_attr->gid);4454	rdma_gid2ip((struct sockaddr *)&dgid_addr, &ah_attr->grh.dgid);4455	ah->av.attrs = *ah_attr;4456	ah->av.net_type = rdma_gid_attr_network_type(sgid_attr);4457	ah_info = &sc_ah->ah_info;4458	ah_info->pd_idx = pd->sc_pd.pd_id;4459	if (ah_attr->ah_flags & IB_AH_GRH) {4460		ah_info->flow_label = ah_attr->grh.flow_label;4461		ah_info->hop_ttl = ah_attr->grh.hop_limit;4462		ah_info->tc_tos = ah_attr->grh.traffic_class;4463	}4464 4465	ether_addr_copy(dmac, ah_attr->roce.dmac);4466	if (ah->av.net_type == RDMA_NETWORK_IPV4) {4467		ah_info->ipv4_valid = true;4468		ah_info->dest_ip_addr[0] =4469			ntohl(dgid_addr.saddr_in.sin_addr.s_addr);4470		ah_info->src_ip_addr[0] =4471			ntohl(sgid_addr.saddr_in.sin_addr.s_addr);4472		ah_info->do_lpbk = irdma_ipv4_is_lpb(ah_info->src_ip_addr[0],4473						     ah_info->dest_ip_addr[0]);4474		if (ipv4_is_multicast(dgid_addr.saddr_in.sin_addr.s_addr)) {4475			ah_info->do_lpbk = true;4476			irdma_mcast_mac(ah_info->dest_ip_addr, dmac, true);4477		}4478	} else {4479		irdma_copy_ip_ntohl(ah_info->dest_ip_addr,4480				    dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);4481		irdma_copy_ip_ntohl(ah_info->src_ip_addr,4482				    sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);4483		ah_info->do_lpbk = irdma_ipv6_is_lpb(ah_info->src_ip_addr,4484						     ah_info->dest_ip_addr);4485		if (rdma_is_multicast_addr(&dgid_addr.saddr_in6.sin6_addr)) {4486			ah_info->do_lpbk = true;4487			irdma_mcast_mac(ah_info->dest_ip_addr, dmac, false);4488		}4489	}4490 4491	err = rdma_read_gid_l2_fields(sgid_attr, &ah_info->vlan_tag,4492				      ah_info->mac_addr);4493	if (err)4494		return err;4495 4496	ah_info->dst_arpindex = irdma_add_arp(iwdev->rf, ah_info->dest_ip_addr,4497					      ah_info->ipv4_valid, dmac);4498 4499	if (ah_info->dst_arpindex == -1)4500		return -EINVAL;4501 4502	if (ah_info->vlan_tag >= VLAN_N_VID && iwdev->dcb_vlan_mode)4503		ah_info->vlan_tag = 0;4504 4505	if (ah_info->vlan_tag < VLAN_N_VID) {4506		u8 prio = rt_tos2priority(ah_info->tc_tos);4507 4508		prio = irdma_roce_get_vlan_prio(sgid_attr, prio);4509 4510		ah_info->vlan_tag |= (u16)prio << VLAN_PRIO_SHIFT;4511		ah_info->insert_vlan_tag = true;4512	}4513 4514	return 0;4515}4516 4517/**4518 * irdma_ah_exists - Check for existing identical AH4519 * @iwdev: irdma device4520 * @new_ah: AH to check for4521 *4522 * returns true if AH is found, false if not found.4523 */4524static bool irdma_ah_exists(struct irdma_device *iwdev,4525			    struct irdma_ah *new_ah)4526{4527	struct irdma_ah *ah;4528	u32 key = new_ah->sc_ah.ah_info.dest_ip_addr[0] ^4529		  new_ah->sc_ah.ah_info.dest_ip_addr[1] ^4530		  new_ah->sc_ah.ah_info.dest_ip_addr[2] ^4531		  new_ah->sc_ah.ah_info.dest_ip_addr[3];4532 4533	hash_for_each_possible(iwdev->ah_hash_tbl, ah, list, key) {4534		/* Set ah_valid and ah_id the same so memcmp can work */4535		new_ah->sc_ah.ah_info.ah_idx = ah->sc_ah.ah_info.ah_idx;4536		new_ah->sc_ah.ah_info.ah_valid = ah->sc_ah.ah_info.ah_valid;4537		if (!memcmp(&ah->sc_ah.ah_info, &new_ah->sc_ah.ah_info,4538			    sizeof(ah->sc_ah.ah_info))) {4539			refcount_inc(&ah->refcnt);4540			new_ah->parent_ah = ah;4541			return true;4542		}4543	}4544 4545	return false;4546}4547 4548/**4549 * irdma_destroy_ah - Destroy address handle4550 * @ibah: pointer to address handle4551 * @ah_flags: flags for sleepable4552 */4553static int irdma_destroy_ah(struct ib_ah *ibah, u32 ah_flags)4554{4555	struct irdma_device *iwdev = to_iwdev(ibah->device);4556	struct irdma_ah *ah = to_iwah(ibah);4557 4558	if ((ah_flags & RDMA_DESTROY_AH_SLEEPABLE) && ah->parent_ah) {4559		mutex_lock(&iwdev->ah_tbl_lock);4560		if (!refcount_dec_and_test(&ah->parent_ah->refcnt)) {4561			mutex_unlock(&iwdev->ah_tbl_lock);4562			return 0;4563		}4564		hash_del(&ah->parent_ah->list);4565		kfree(ah->parent_ah);4566		mutex_unlock(&iwdev->ah_tbl_lock);4567	}4568 4569	irdma_ah_cqp_op(iwdev->rf, &ah->sc_ah, IRDMA_OP_AH_DESTROY,4570			false, NULL, ah);4571 4572	irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs,4573			ah->sc_ah.ah_info.ah_idx);4574 4575	return 0;4576}4577 4578/**4579 * irdma_create_user_ah - create user address handle4580 * @ibah: address handle4581 * @attr: address handle attributes4582 * @udata: User data4583 *4584 * returns 0 on success, error otherwise4585 */4586static int irdma_create_user_ah(struct ib_ah *ibah,4587				struct rdma_ah_init_attr *attr,4588				struct ib_udata *udata)4589{4590#define IRDMA_CREATE_AH_MIN_RESP_LEN offsetofend(struct irdma_create_ah_resp, rsvd)4591	struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah);4592	struct irdma_device *iwdev = to_iwdev(ibah->pd->device);4593	struct irdma_create_ah_resp uresp;4594	struct irdma_ah *parent_ah;4595	int err;4596 4597	if (udata && udata->outlen < IRDMA_CREATE_AH_MIN_RESP_LEN)4598		return -EINVAL;4599 4600	err = irdma_setup_ah(ibah, attr);4601	if (err)4602		return err;4603	mutex_lock(&iwdev->ah_tbl_lock);4604	if (!irdma_ah_exists(iwdev, ah)) {4605		err = irdma_create_hw_ah(iwdev, ah, true);4606		if (err) {4607			mutex_unlock(&iwdev->ah_tbl_lock);4608			return err;4609		}4610		/* Add new AH to list */4611		parent_ah = kmemdup(ah, sizeof(*ah), GFP_KERNEL);4612		if (parent_ah) {4613			u32 key = parent_ah->sc_ah.ah_info.dest_ip_addr[0] ^4614				  parent_ah->sc_ah.ah_info.dest_ip_addr[1] ^4615				  parent_ah->sc_ah.ah_info.dest_ip_addr[2] ^4616				  parent_ah->sc_ah.ah_info.dest_ip_addr[3];4617 4618			ah->parent_ah = parent_ah;4619			hash_add(iwdev->ah_hash_tbl, &parent_ah->list, key);4620			refcount_set(&parent_ah->refcnt, 1);4621		}4622	}4623	mutex_unlock(&iwdev->ah_tbl_lock);4624 4625	uresp.ah_id = ah->sc_ah.ah_info.ah_idx;4626	err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen));4627	if (err)4628		irdma_destroy_ah(ibah, attr->flags);4629 4630	return err;4631}4632 4633/**4634 * irdma_create_ah - create address handle4635 * @ibah: address handle4636 * @attr: address handle attributes4637 * @udata: NULL4638 *4639 * returns 0 on success, error otherwise4640 */4641static int irdma_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *attr,4642			   struct ib_udata *udata)4643{4644	struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah);4645	struct irdma_device *iwdev = to_iwdev(ibah->pd->device);4646	int err;4647 4648	err = irdma_setup_ah(ibah, attr);4649	if (err)4650		return err;4651	err = irdma_create_hw_ah(iwdev, ah, attr->flags & RDMA_CREATE_AH_SLEEPABLE);4652 4653	return err;4654}4655 4656/**4657 * irdma_query_ah - Query address handle4658 * @ibah: pointer to address handle4659 * @ah_attr: address handle attributes4660 */4661static int irdma_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr)4662{4663	struct irdma_ah *ah = to_iwah(ibah);4664 4665	memset(ah_attr, 0, sizeof(*ah_attr));4666	if (ah->av.attrs.ah_flags & IB_AH_GRH) {4667		ah_attr->ah_flags = IB_AH_GRH;4668		ah_attr->grh.flow_label = ah->sc_ah.ah_info.flow_label;4669		ah_attr->grh.traffic_class = ah->sc_ah.ah_info.tc_tos;4670		ah_attr->grh.hop_limit = ah->sc_ah.ah_info.hop_ttl;4671		ah_attr->grh.sgid_index = ah->sgid_index;4672		memcpy(&ah_attr->grh.dgid, &ah->dgid,4673		       sizeof(ah_attr->grh.dgid));4674	}4675 4676	return 0;4677}4678 4679static enum rdma_link_layer irdma_get_link_layer(struct ib_device *ibdev,4680						 u32 port_num)4681{4682	return IB_LINK_LAYER_ETHERNET;4683}4684 4685static const struct ib_device_ops irdma_roce_dev_ops = {4686	.attach_mcast = irdma_attach_mcast,4687	.create_ah = irdma_create_ah,4688	.create_user_ah = irdma_create_user_ah,4689	.destroy_ah = irdma_destroy_ah,4690	.detach_mcast = irdma_detach_mcast,4691	.get_link_layer = irdma_get_link_layer,4692	.get_port_immutable = irdma_roce_port_immutable,4693	.modify_qp = irdma_modify_qp_roce,4694	.query_ah = irdma_query_ah,4695	.query_pkey = irdma_query_pkey,4696};4697 4698static const struct ib_device_ops irdma_iw_dev_ops = {4699	.get_port_immutable = irdma_iw_port_immutable,4700	.iw_accept = irdma_accept,4701	.iw_add_ref = irdma_qp_add_ref,4702	.iw_connect = irdma_connect,4703	.iw_create_listen = irdma_create_listen,4704	.iw_destroy_listen = irdma_destroy_listen,4705	.iw_get_qp = irdma_get_qp,4706	.iw_reject = irdma_reject,4707	.iw_rem_ref = irdma_qp_rem_ref,4708	.modify_qp = irdma_modify_qp,4709	.query_gid = irdma_query_gid,4710};4711 4712static const struct ib_device_ops irdma_dev_ops = {4713	.owner = THIS_MODULE,4714	.driver_id = RDMA_DRIVER_IRDMA,4715	.uverbs_abi_ver = IRDMA_ABI_VER,4716 4717	.alloc_hw_port_stats = irdma_alloc_hw_port_stats,4718	.alloc_mr = irdma_alloc_mr,4719	.alloc_mw = irdma_alloc_mw,4720	.alloc_pd = irdma_alloc_pd,4721	.alloc_ucontext = irdma_alloc_ucontext,4722	.create_cq = irdma_create_cq,4723	.create_qp = irdma_create_qp,4724	.dealloc_driver = irdma_ib_dealloc_device,4725	.dealloc_mw = irdma_dealloc_mw,4726	.dealloc_pd = irdma_dealloc_pd,4727	.dealloc_ucontext = irdma_dealloc_ucontext,4728	.dereg_mr = irdma_dereg_mr,4729	.destroy_cq = irdma_destroy_cq,4730	.destroy_qp = irdma_destroy_qp,4731	.disassociate_ucontext = irdma_disassociate_ucontext,4732	.get_dev_fw_str = irdma_get_dev_fw_str,4733	.get_dma_mr = irdma_get_dma_mr,4734	.get_hw_stats = irdma_get_hw_stats,4735	.map_mr_sg = irdma_map_mr_sg,4736	.mmap = irdma_mmap,4737	.mmap_free = irdma_mmap_free,4738	.poll_cq = irdma_poll_cq,4739	.post_recv = irdma_post_recv,4740	.post_send = irdma_post_send,4741	.query_device = irdma_query_device,4742	.query_port = irdma_query_port,4743	.query_qp = irdma_query_qp,4744	.reg_user_mr = irdma_reg_user_mr,4745	.reg_user_mr_dmabuf = irdma_reg_user_mr_dmabuf,4746	.rereg_user_mr = irdma_rereg_user_mr,4747	.req_notify_cq = irdma_req_notify_cq,4748	.resize_cq = irdma_resize_cq,4749	INIT_RDMA_OBJ_SIZE(ib_pd, irdma_pd, ibpd),4750	INIT_RDMA_OBJ_SIZE(ib_ucontext, irdma_ucontext, ibucontext),4751	INIT_RDMA_OBJ_SIZE(ib_ah, irdma_ah, ibah),4752	INIT_RDMA_OBJ_SIZE(ib_cq, irdma_cq, ibcq),4753	INIT_RDMA_OBJ_SIZE(ib_mw, irdma_mr, ibmw),4754	INIT_RDMA_OBJ_SIZE(ib_qp, irdma_qp, ibqp),4755};4756 4757/**4758 * irdma_init_roce_device - initialization of roce rdma device4759 * @iwdev: irdma device4760 */4761static void irdma_init_roce_device(struct irdma_device *iwdev)4762{4763	iwdev->ibdev.node_type = RDMA_NODE_IB_CA;4764	addrconf_addr_eui48((u8 *)&iwdev->ibdev.node_guid,4765			    iwdev->netdev->dev_addr);4766	ib_set_device_ops(&iwdev->ibdev, &irdma_roce_dev_ops);4767}4768 4769/**4770 * irdma_init_iw_device - initialization of iwarp rdma device4771 * @iwdev: irdma device4772 */4773static void irdma_init_iw_device(struct irdma_device *iwdev)4774{4775	struct net_device *netdev = iwdev->netdev;4776 4777	iwdev->ibdev.node_type = RDMA_NODE_RNIC;4778	addrconf_addr_eui48((u8 *)&iwdev->ibdev.node_guid,4779			    netdev->dev_addr);4780	memcpy(iwdev->ibdev.iw_ifname, netdev->name,4781	       sizeof(iwdev->ibdev.iw_ifname));4782	ib_set_device_ops(&iwdev->ibdev, &irdma_iw_dev_ops);4783}4784 4785/**4786 * irdma_init_rdma_device - initialization of rdma device4787 * @iwdev: irdma device4788 */4789static void irdma_init_rdma_device(struct irdma_device *iwdev)4790{4791	struct pci_dev *pcidev = iwdev->rf->pcidev;4792 4793	if (iwdev->roce_mode)4794		irdma_init_roce_device(iwdev);4795	else4796		irdma_init_iw_device(iwdev);4797 4798	iwdev->ibdev.phys_port_cnt = 1;4799	iwdev->ibdev.num_comp_vectors = iwdev->rf->ceqs_count;4800	iwdev->ibdev.dev.parent = &pcidev->dev;4801	ib_set_device_ops(&iwdev->ibdev, &irdma_dev_ops);4802}4803 4804/**4805 * irdma_port_ibevent - indicate port event4806 * @iwdev: irdma device4807 */4808void irdma_port_ibevent(struct irdma_device *iwdev)4809{4810	struct ib_event event;4811 4812	event.device = &iwdev->ibdev;4813	event.element.port_num = 1;4814	event.event =4815		iwdev->iw_status ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;4816	ib_dispatch_event(&event);4817}4818 4819/**4820 * irdma_ib_unregister_device - unregister rdma device from IB4821 * core4822 * @iwdev: irdma device4823 */4824void irdma_ib_unregister_device(struct irdma_device *iwdev)4825{4826	iwdev->iw_status = 0;4827	irdma_port_ibevent(iwdev);4828	ib_unregister_device(&iwdev->ibdev);4829}4830 4831/**4832 * irdma_ib_register_device - register irdma device to IB core4833 * @iwdev: irdma device4834 */4835int irdma_ib_register_device(struct irdma_device *iwdev)4836{4837	int ret;4838 4839	irdma_init_rdma_device(iwdev);4840 4841	ret = ib_device_set_netdev(&iwdev->ibdev, iwdev->netdev, 1);4842	if (ret)4843		goto error;4844	dma_set_max_seg_size(iwdev->rf->hw.device, UINT_MAX);4845	ret = ib_register_device(&iwdev->ibdev, "irdma%d", iwdev->rf->hw.device);4846	if (ret)4847		goto error;4848 4849	iwdev->iw_status = 1;4850	irdma_port_ibevent(iwdev);4851 4852	return 0;4853 4854error:4855	if (ret)4856		ibdev_dbg(&iwdev->ibdev, "VERBS: Register RDMA device fail\n");4857 4858	return ret;4859}4860 4861/**4862 * irdma_ib_dealloc_device4863 * @ibdev: ib device4864 *4865 * callback from ibdev dealloc_driver to deallocate resources4866 * unber irdma device4867 */4868void irdma_ib_dealloc_device(struct ib_device *ibdev)4869{4870	struct irdma_device *iwdev = to_iwdev(ibdev);4871 4872	irdma_rt_deinit_hw(iwdev);4873	irdma_ctrl_deinit_hw(iwdev->rf);4874	kfree(iwdev->rf);4875}4876