[RFC 12/20] RDMA/irdma: Implement device supported verb APIs

[Jeff Kirsher <jeffrey.t.kirsher@intel.com>]

From: Mustafa Ismail <mustafa.ismail@intel.com>

Implement device supported verb APIs. The supported APIs
vary based on the underlying transport the ibdev is
registered as (i.e. iWARP or RoCEv2).

Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
---
 drivers/infiniband/hw/irdma/verbs.c      | 4346 ++++++++++++++++++++++
 drivers/infiniband/hw/irdma/verbs.h      |  199 +
 include/uapi/rdma/rdma_user_ioctl_cmds.h |    1 +
 3 files changed, 4546 insertions(+)
 create mode 100644 drivers/infiniband/hw/irdma/verbs.c
 create mode 100644 drivers/infiniband/hw/irdma/verbs.h

diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c
new file mode 100644
index 000000000000..025c21c722e2
--- /dev/null
+++ b/drivers/infiniband/hw/irdma/verbs.c
@@ -0,0 +1,4346 @@
+// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
+/* Copyright (c) 2019, Intel Corporation. */
+
+#include <linux/random.h>
+#include <linux/highmem.h>
+#include <linux/time.h>
+#include <linux/irq.h>
+#include <asm/byteorder.h>
+#include <net/ip.h>
+#include <rdma/ib_verbs.h>
+#include <rdma/iw_cm.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_umem.h>
+#include <rdma/uverbs_ioctl.h>
+#include <rdma/ib_cache.h>
+#include "main.h"
+
+/**
+ * irdma_query_device - get device attributes
+ * @ibdev: device pointer from stack
+ * @props: returning device attributes
+ * @udata: user data
+ */
+static int irdma_query_device(struct ib_device *ibdev,
+			      struct ib_device_attr *props,
+			      struct ib_udata *udata)
+{
+	struct irdma_device *iwdev = to_iwdev(ibdev);
+	struct irdma_pci_f *rf = iwdev->rf;
+	struct pci_dev *pdev = iwdev->rf->pdev;
+	struct irdma_hw_attrs *hw_attrs = &rf->sc_dev.hw_attrs;
+
+	if (udata->inlen || udata->outlen)
+		return -EINVAL;
+
+	memset(props, 0, sizeof(*props));
+	ether_addr_copy((u8 *)&props->sys_image_guid, iwdev->netdev->dev_addr);
+	props->fw_ver = (u64)FW_MAJOR_VER(&rf->sc_dev) << 32 |
+			FW_MINOR_VER(&rf->sc_dev) << 16;
+	props->device_cap_flags = iwdev->device_cap_flags;
+	props->vendor_id = pdev->vendor;
+	props->vendor_part_id = pdev->device;
+	props->hw_ver = (u32)rf->sc_dev.pci_rev;
+	props->max_mr_size = hw_attrs->max_mr_size;
+	props->max_qp = rf->max_qp - rf->used_qps;
+	props->max_qp_wr = hw_attrs->max_qp_wr;
+	props->max_send_sge = hw_attrs->uk_attrs.max_hw_wq_frags;
+	props->max_recv_sge = hw_attrs->uk_attrs.max_hw_wq_frags;
+	props->max_cq = rf->max_cq - rf->used_cqs;
+	props->max_cqe = rf->max_cqe;
+	props->max_mr = rf->max_mr - rf->used_mrs;
+	props->max_mw = props->max_mr;
+	props->max_pd = rf->max_pd - rf->used_pds;
+	props->max_sge_rd = hw_attrs->uk_attrs.max_hw_read_sges;
+	props->max_qp_rd_atom = hw_attrs->max_hw_ird;
+	props->max_qp_init_rd_atom = props->max_qp_rd_atom;
+	props->atomic_cap = IB_ATOMIC_NONE;
+	props->max_map_per_fmr = 1;
+	props->max_ah = rf->max_ah;
+	props->max_mcast_grp = rf->max_mcg;
+	props->max_mcast_qp_attach = IRDMA_MAX_MGS_PER_CTX;
+	props->max_total_mcast_qp_attach = rf->max_qp * IRDMA_MAX_MGS_PER_CTX;
+	props->max_fast_reg_page_list_len = IRDMA_MAX_PAGES_PER_FMR;
+
+	return 0;
+}
+
+/**
+ * irdma_get_eth_speed_and_width - Get IB port speed and width from netdev speed
+ * @link_speed: netdev phy link speed
+ * @active_speed: IB port speed
+ * @active_width: IB port width
+ */
+static void irdma_get_eth_speed_and_width(u32 link_speed, u8 *active_speed,
+					  u8 *active_width)
+{
+	if (link_speed <= SPEED_1000) {
+		*active_width = IB_WIDTH_1X;
+		*active_speed = IB_SPEED_SDR;
+	} else if (link_speed <= SPEED_10000) {
+		*active_width = IB_WIDTH_1X;
+		*active_speed = IB_SPEED_FDR10;
+	} else if (link_speed <= SPEED_20000) {
+		*active_width = IB_WIDTH_4X;
+		*active_speed = IB_SPEED_DDR;
+	} else if (link_speed <= SPEED_25000) {
+		*active_width = IB_WIDTH_1X;
+		*active_speed = IB_SPEED_EDR;
+	} else if (link_speed <= SPEED_40000) {
+		*active_width = IB_WIDTH_4X;
+		*active_speed = IB_SPEED_FDR10;
+	} else {
+		*active_width = IB_WIDTH_4X;
+		*active_speed = IB_SPEED_EDR;
+	}
+}
+
+/**
+ * irdma_query_port - get port attributes
+ * @ibdev: device pointer from stack
+ * @port: port number for query
+ * @props: returning device attributes
+ */
+static int irdma_query_port(struct ib_device *ibdev, u8 port,
+			    struct ib_port_attr *props)
+{
+	struct irdma_device *iwdev = to_iwdev(ibdev);
+	struct net_device *netdev = iwdev->netdev;
+
+	/* no need to zero out pros here. done by caller */
+	props->max_mtu = IB_MTU_4096;
+	props->active_mtu = ib_mtu_int_to_enum(netdev->mtu);
+	props->lid = 1;
+	props->lmc = 0;
+	props->sm_lid = 0;
+	props->sm_sl = 0;
+	if (netif_carrier_ok(netdev) && netif_running(netdev)) {
+		props->state = IB_PORT_ACTIVE;
+		props->phys_state = 5;
+	} else {
+		props->state = IB_PORT_DOWN;
+		props->phys_state = 3;
+	}
+	irdma_get_eth_speed_and_width(SPEED_100000, &props->active_speed,
+				      &props->active_width);
+
+	if (rdma_protocol_roce(ibdev, 1)) {
+		props->gid_tbl_len = 32;
+		props->ip_gids = true;
+	} else {
+		props->gid_tbl_len = 1;
+	}
+	props->pkey_tbl_len = IRDMA_PKEY_TBL_SZ;
+	props->qkey_viol_cntr = 0;
+	props->port_cap_flags |= IB_PORT_CM_SUP | IB_PORT_REINIT_SUP;
+	props->max_msg_sz = iwdev->rf->sc_dev.hw_attrs.max_hw_outbound_msg_size;
+
+	return 0;
+}
+
+/**
+ * irdma_disassociate_ucontext - Disassociate user context
+ * @context: ib user context
+ */
+static void irdma_disassociate_ucontext(struct ib_ucontext *context)
+{
+}
+
+/**
+ * irdma_mmap - user memory map
+ * @context: context created during alloc
+ * @vma: kernel info for user memory map
+ */
+static int irdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
+{
+	struct irdma_ucontext *ucontext;
+	u64 db_addr_offset;
+	u64 push_offset;
+
+	ucontext = to_ucontext(context);
+	db_addr_offset = ucontext->iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET];
+	if (ucontext->iwdev->rf->sc_dev.is_pf) {
+		push_offset = IRDMA_PUSH_OFFSET;
+		if (vma->vm_pgoff)
+			vma->vm_pgoff += IRDMA_PF_FIRST_PUSH_PAGE_INDEX - 1;
+	} else {
+		push_offset = IRDMA_VF_PUSH_OFFSET;
+		if (vma->vm_pgoff)
+			vma->vm_pgoff += IRDMA_VF_FIRST_PUSH_PAGE_INDEX - 1;
+	}
+
+	vma->vm_pgoff += db_addr_offset >> PAGE_SHIFT;
+	if (vma->vm_pgoff == (db_addr_offset >> PAGE_SHIFT)) {
+		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+		vma->vm_private_data = ucontext;
+	} else {
+		if ((vma->vm_pgoff - (push_offset >> PAGE_SHIFT)) % 2)
+			vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+		else
+			vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+	}
+
+	return rdma_user_mmap_io(context, vma,
+				 vma->vm_pgoff + (pci_resource_start(ucontext->iwdev->rf->pdev, 0)
+						  >> PAGE_SHIFT),
+				 PAGE_SIZE, vma->vm_page_prot);
+}
+
+/**
+ * irdma_alloc_push_page - allocate a push page for qp
+ * @iwqp: qp pointer
+ */
+static void irdma_alloc_push_page(struct irdma_qp *iwqp)
+{
+	struct irdma_cqp_request *cqp_request;
+	struct cqp_cmds_info *cqp_info;
+	struct irdma_device *iwdev = iwqp->iwdev;
+	struct irdma_sc_qp *qp = &iwqp->sc_qp;
+	enum irdma_status_code status;
+
+	if (qp->push_idx != IRDMA_INVALID_PUSH_PAGE_INDEX)
+		return;
+
+	cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true);
+	if (!cqp_request)
+		return;
+
+	atomic_inc(&cqp_request->refcount);
+	cqp_info = &cqp_request->info;
+	cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE;
+	cqp_info->post_sq = 1;
+	cqp_info->in.u.manage_push_page.info.push_idx = 0;
+	cqp_info->in.u.manage_push_page.info.qs_handle =
+		qp->vsi->qos[qp->user_pri].qs_handle;
+	cqp_info->in.u.manage_push_page.info.free_page = 0;
+	cqp_info->in.u.manage_push_page.info.push_page_type = 0;
+	cqp_info->in.u.manage_push_page.cqp = &iwdev->rf->cqp.sc_cqp;
+	cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
+
+	status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
+	if (!status) {
+		qp->push_idx = cqp_request->compl_info.op_ret_val;
+		qp->push_offset = 0;
+	} else {
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: CQP-OP Push page fail");
+	}
+
+	irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);
+}
+
+/**
+ * irdma_alloc_ucontext - Allocate the user context data structure
+ * @uctx: uverbs context pointer
+ * @udata: user data
+ *
+ * This keeps track of all objects associated with a particular
+ * user-mode client.
+ */
+static int irdma_alloc_ucontext(struct ib_ucontext *uctx,
+				struct ib_udata *udata)
+{
+	struct ib_device *ibdev = uctx->device;
+	struct irdma_device *iwdev = to_iwdev(ibdev);
+	struct irdma_alloc_ucontext_req req;
+	struct irdma_alloc_ucontext_resp uresp = {};
+	struct i40iw_alloc_ucontext_resp uresp_gen1 = {};
+	struct irdma_ucontext *ucontext = to_ucontext(uctx);
+	struct irdma_uk_attrs *uk_attrs;
+
+	if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen)))
+		return -EINVAL;
+
+	if (req.userspace_ver > IRDMA_ABI_VER)
+		goto ver_error;
+
+	ucontext->iwdev = iwdev;
+	ucontext->abi_ver = req.userspace_ver;
+
+	uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs;
+	/* GEN_1 legacy support with libi40iw */
+	if (req.userspace_ver <= 5) {
+		if (uk_attrs->hw_rev != IRDMA_GEN_1)
+			goto ver_error;
+
+		uresp_gen1.max_qps = iwdev->rf->max_qp;
+		uresp_gen1.max_pds = iwdev->rf->sc_dev.hw_attrs.max_hw_pds;
+		uresp_gen1.wq_size = iwdev->rf->sc_dev.hw_attrs.max_qp_wr * 2;
+		uresp_gen1.kernel_ver = req.userspace_ver;
+		if (ib_copy_to_udata(udata, &uresp_gen1,
+				     min(sizeof(uresp_gen1), udata->outlen)))
+			return -EFAULT;
+	} else {
+		uresp.kernel_ver = req.userspace_ver;
+		uresp.feature_flags = uk_attrs->feature_flags;
+		uresp.max_hw_wq_frags = uk_attrs->max_hw_wq_frags;
+		uresp.max_hw_read_sges = uk_attrs->max_hw_read_sges;
+		uresp.max_hw_inline = uk_attrs->max_hw_inline;
+		uresp.max_hw_rq_quanta = uk_attrs->max_hw_rq_quanta;
+		uresp.max_hw_wq_quanta = uk_attrs->max_hw_wq_quanta;
+		uresp.max_hw_sq_chunk = uk_attrs->max_hw_sq_chunk;
+		uresp.max_hw_cq_size = uk_attrs->max_hw_cq_size;
+		uresp.min_hw_cq_size = uk_attrs->min_hw_cq_size;
+		uresp.hw_rev = uk_attrs->hw_rev;
+		if (ib_copy_to_udata(udata, &uresp,
+				     min(sizeof(uresp), udata->outlen)))
+			return -EFAULT;
+	}
+
+	INIT_LIST_HEAD(&ucontext->cq_reg_mem_list);
+	spin_lock_init(&ucontext->cq_reg_mem_list_lock);
+	INIT_LIST_HEAD(&ucontext->qp_reg_mem_list);
+	spin_lock_init(&ucontext->qp_reg_mem_list_lock);
+
+	return 0;
+
+ver_error:
+	dev_err(rfdev_to_dev(&iwdev->rf->sc_dev),
+		"Invalid userspace driver version detected. Detected version %d, should be %d\n",
+		req.userspace_ver, IRDMA_ABI_VER);
+	uresp.kernel_ver = IRDMA_ABI_VER;
+	return -EINVAL;
+}
+
+/**
+ * irdma_dealloc_ucontext - deallocate the user context data structure
+ * @context: user context created during alloc
+ */
+static void irdma_dealloc_ucontext(struct ib_ucontext *context)
+{
+}
+
+/**
+ * irdma_alloc_pd - allocate protection domain
+ * @pd: PD pointer
+ * @udata: user data
+ */
+static int irdma_alloc_pd(struct ib_pd *pd, struct ib_udata *udata)
+{
+	struct irdma_pd *iwpd = to_iwpd(pd);
+	struct irdma_device *iwdev = to_iwdev(pd->device);
+	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
+	struct irdma_pci_f *rf = iwdev->rf;
+	struct irdma_alloc_pd_resp uresp = {};
+	struct irdma_sc_pd *sc_pd;
+	u32 pd_id = 0;
+	int err;
+
+	err = irdma_alloc_rsrc(rf, rf->allocated_pds, rf->max_pd, &pd_id,
+			       &rf->next_pd);
+	if (err)
+		return err;
+
+	sc_pd = &iwpd->sc_pd;
+	if (udata) {
+		struct irdma_ucontext *ucontext =
+			rdma_udata_to_drv_context(udata, struct irdma_ucontext,
+						  ibucontext);
+		dev->iw_pd_ops->pd_init(dev, sc_pd, pd_id, ucontext->abi_ver);
+		uresp.pd_id = pd_id;
+		if (ib_copy_to_udata(udata, &uresp,
+				     min(sizeof(uresp), udata->outlen))) {
+			err = -EFAULT;
+			goto error;
+		}
+	} else {
+		dev->iw_pd_ops->pd_init(dev, sc_pd, pd_id, IRDMA_ABI_VER);
+	}
+
+	return 0;
+error:
+	irdma_free_rsrc(rf, rf->allocated_pds, pd_id);
+
+	return err;
+}
+
+/**
+ * irdma_dealloc_pd - deallocate pd
+ * @ibpd: ptr of pd to be deallocated
+ * @udata: user data
+ */
+static void irdma_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
+{
+	struct irdma_pd *iwpd = to_iwpd(ibpd);
+	struct irdma_device *iwdev = to_iwdev(ibpd->device);
+
+	irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_pds, iwpd->sc_pd.pd_id);
+}
+
+/**
+ * irdma_get_pbl - Retrieve pbl from a list given a virtual
+ * address
+ * @va: user virtual address
+ * @pbl_list: pbl list to search in (QP's or CQ's)
+ */
+static struct irdma_pbl *irdma_get_pbl(unsigned long va,
+				       struct list_head *pbl_list)
+{
+	struct irdma_pbl *iwpbl;
+
+	list_for_each_entry(iwpbl, pbl_list, list) {
+		if (iwpbl->user_base == va) {
+			list_del(&iwpbl->list);
+			iwpbl->on_list = false;
+			return iwpbl;
+		}
+	}
+
+	return NULL;
+}
+
+/**
+ * irdma_clean_cqes - clean cq entries for qp
+ * @iwqp: qp ptr (user or kernel)
+ * @iwcq: cq ptr
+ */
+static void irdma_clean_cqes(struct irdma_qp *iwqp, struct irdma_cq *iwcq)
+{
+	struct irdma_cq_uk *ukcq = &iwcq->sc_cq.cq_uk;
+	unsigned long flags;
+
+	spin_lock_irqsave(&iwcq->lock, flags);
+	ukcq->ops.iw_cq_clean(&iwqp->sc_qp.qp_uk, ukcq);
+	spin_unlock_irqrestore(&iwcq->lock, flags);
+}
+
+/**
+ * irdma_destroy_qp - destroy qp
+ * @ibqp: qp's ib pointer also to get to device's qp address
+ * @udata: user data
+ */
+static int irdma_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata)
+{
+	struct irdma_qp *iwqp = to_iwqp(ibqp);
+
+	iwqp->destroyed = 1;
+	if (iwqp->ibqp_state >= IB_QPS_INIT && iwqp->ibqp_state < IB_QPS_RTS)
+		irdma_next_iw_state(iwqp, IRDMA_QP_STATE_ERROR, 0, 0, 0);
+
+	if (!iwqp->user_mode) {
+		if (iwqp->iwscq) {
+			irdma_clean_cqes(iwqp, iwqp->iwscq);
+			if (iwqp->iwrcq != iwqp->iwscq)
+				irdma_clean_cqes(iwqp, iwqp->iwrcq);
+		}
+	}
+
+	irdma_rem_ref(&iwqp->ibqp);
+
+	return 0;
+}
+
+/**
+ * irdma_setup_virt_qp - setup for allocation of virtual qp
+ * @iwdev: iwarp device
+ * @iwqp: qp ptr
+ * @init_info: initialize info to return
+ */
+static int irdma_setup_virt_qp(struct irdma_device *iwdev,
+			       struct irdma_qp *iwqp,
+			       struct irdma_qp_init_info *init_info)
+{
+	struct irdma_pbl *iwpbl = iwqp->iwpbl;
+	struct irdma_qp_mr *qpmr = &iwpbl->qp_mr;
+
+	iwqp->page = qpmr->sq_page;
+	init_info->shadow_area_pa = qpmr->shadow;
+	if (iwpbl->pbl_allocated) {
+		init_info->virtual_map = true;
+		init_info->sq_pa = qpmr->sq_pbl.idx;
+		init_info->rq_pa = qpmr->rq_pbl.idx;
+	} else {
+		init_info->sq_pa = qpmr->sq_pbl.addr;
+		init_info->rq_pa = qpmr->rq_pbl.addr;
+	}
+
+	return 0;
+}
+
+/**
+ * irdma_setup_kmode_qp - setup initialization for kernel mode qp
+ * @iwdev: iwarp device
+ * @iwqp: qp ptr (user or kernel)
+ * @info: initialize info to return
+ */
+static int irdma_setup_kmode_qp(struct irdma_device *iwdev,
+				struct irdma_qp *iwqp,
+				struct irdma_qp_init_info *info)
+{
+	struct irdma_dma_mem *mem = &iwqp->kqp.dma_mem;
+	u32 sqdepth, rqdepth;
+	u8 sqshift, rqshift;
+	u32 size;
+	enum irdma_status_code status;
+	struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info;
+	struct irdma_uk_attrs *uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs;
+
+	irdma_get_wqe_shift(uk_attrs,
+		uk_attrs->hw_rev > IRDMA_GEN_1 ? ukinfo->max_sq_frag_cnt + 1 :
+						 ukinfo->max_sq_frag_cnt,
+		ukinfo->max_inline_data, &sqshift);
+	status = irdma_get_sqdepth(uk_attrs, ukinfo->sq_size, sqshift,
+				   &sqdepth);
+	if (status)
+		return -ENOMEM;
+
+	if (uk_attrs->hw_rev == IRDMA_GEN_1)
+		rqshift = IRDMA_MAX_RQ_WQE_SHIFT_GEN1;
+	else
+		irdma_get_wqe_shift(uk_attrs, ukinfo->max_rq_frag_cnt, 0,
+				    &rqshift);
+
+	status = irdma_get_rqdepth(uk_attrs, ukinfo->rq_size, rqshift,
+				   &rqdepth);
+	if (status)
+		return -ENOMEM;
+
+	size = sqdepth * sizeof(struct irdma_sq_uk_wr_trk_info) +
+	       (rqdepth << 3);
+	iwqp->kqp.wrid_mem = kzalloc(size, GFP_KERNEL);
+	if (!iwqp->kqp.wrid_mem)
+		return -ENOMEM;
+
+	ukinfo->sq_wrtrk_array = (struct irdma_sq_uk_wr_trk_info *)
+				 iwqp->kqp.wrid_mem;
+	if (!ukinfo->sq_wrtrk_array)
+		return -ENOMEM;
+
+	ukinfo->rq_wrid_array = (u64 *)&ukinfo->sq_wrtrk_array[sqdepth];
+	size = (sqdepth + rqdepth) * IRDMA_QP_WQE_MIN_SIZE;
+	size += (IRDMA_SHADOW_AREA_SIZE << 3);
+
+	mem->size = ALIGN(size, 256);
+	mem->va = dma_alloc_coherent(hw_to_dev(iwdev->rf->sc_dev.hw),
+				     mem->size, &mem->pa, GFP_KERNEL);
+	if (!mem->va) {
+		kfree(ukinfo->sq_wrtrk_array);
+		ukinfo->sq_wrtrk_array = NULL;
+		return -ENOMEM;
+	}
+
+	ukinfo->sq = mem->va;
+	info->sq_pa = mem->pa;
+	ukinfo->rq = &ukinfo->sq[sqdepth];
+	info->rq_pa = info->sq_pa + (sqdepth * IRDMA_QP_WQE_MIN_SIZE);
+	ukinfo->shadow_area = ukinfo->rq[rqdepth].elem;
+	info->shadow_area_pa = info->rq_pa + (rqdepth * IRDMA_QP_WQE_MIN_SIZE);
+	ukinfo->sq_size = sqdepth >> sqshift;
+	ukinfo->rq_size = rqdepth >> rqshift;
+	ukinfo->qp_id = iwqp->ibqp.qp_num;
+
+	return 0;
+}
+
+/**
+ * irdma_roce_mtu - set MTU to supported path MTU values
+ * @mtu: MTU
+ */
+static u32 irdma_roce_mtu(u32 mtu)
+{
+	if (mtu > 4096)
+		return 4096;
+	else if (mtu > 2048)
+		return 2048;
+	else if (mtu > 1024)
+		return 1024;
+	else if (mtu > 512)
+		return 512;
+	else
+		return 256;
+}
+
+/**
+ * irdma_create_qp - create qp
+ * @ibpd: ptr of pd
+ * @init_attr: attributes for qp
+ * @udata: user data for create qp
+ */
+static struct ib_qp *irdma_create_qp(struct ib_pd *ibpd,
+				     struct ib_qp_init_attr *init_attr,
+				     struct ib_udata *udata)
+{
+	struct irdma_pd *iwpd = to_iwpd(ibpd);
+	struct irdma_device *iwdev = to_iwdev(ibpd->device);
+	struct irdma_pci_f *rf = iwdev->rf;
+	struct irdma_cqp *iwcqp = &rf->cqp;
+	struct irdma_qp *iwqp;
+	struct irdma_create_qp_req req;
+	struct irdma_create_qp_resp uresp = {};
+	struct i40iw_create_qp_resp uresp_gen1 = {};
+	u32 qp_num = 0;
+	void *mem;
+	enum irdma_status_code ret;
+	int err_code = 0;
+	int sq_size;
+	int rq_size;
+	struct irdma_sc_qp *qp;
+	struct irdma_sc_dev *dev = &rf->sc_dev;
+	struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs;
+	struct irdma_qp_init_info init_info = {};
+	struct irdma_create_qp_info *qp_info;
+	struct irdma_cqp_request *cqp_request;
+	struct cqp_cmds_info *cqp_info;
+	struct irdma_qp_host_ctx_info *ctx_info;
+	struct irdma_iwarp_offload_info *iwarp_info;
+	struct irdma_roce_offload_info *roce_info;
+	struct irdma_udp_offload_info *udp_info;
+	unsigned long flags;
+
+	if (init_attr->create_flags ||
+	    init_attr->cap.max_inline_data > uk_attrs->max_hw_inline ||
+	    init_attr->cap.max_send_sge > uk_attrs->max_hw_wq_frags ||
+	    init_attr->cap.max_recv_sge > uk_attrs->max_hw_wq_frags)
+		return ERR_PTR(-EINVAL);
+
+	sq_size = init_attr->cap.max_send_wr;
+	rq_size = init_attr->cap.max_recv_wr;
+
+	init_info.vsi = &iwdev->vsi;
+	init_info.qp_uk_init_info.uk_attrs = uk_attrs;
+	init_info.qp_uk_init_info.sq_size = sq_size;
+	init_info.qp_uk_init_info.rq_size = rq_size;
+	init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge;
+	init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge;
+	init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data;
+
+	mem = kzalloc(sizeof(*iwqp), GFP_KERNEL);
+	if (!mem)
+		return ERR_PTR(-ENOMEM);
+
+	iwqp = mem;
+	qp = &iwqp->sc_qp;
+	qp->qp_uk.back_qp = (void *)iwqp;
+	qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX;
+
+	iwqp->q2_ctx_mem.size = ALIGN(IRDMA_Q2_BUF_SIZE + IRDMA_QP_CTX_SIZE,
+				      256);
+	iwqp->q2_ctx_mem.va = dma_alloc_coherent(hw_to_dev(dev->hw),
+						 iwqp->q2_ctx_mem.size,
+						 &iwqp->q2_ctx_mem.pa,
+						 GFP_KERNEL);
+	if (!iwqp->q2_ctx_mem.va) {
+		err_code = -ENOMEM;
+		goto error;
+	}
+
+	init_info.q2 = iwqp->q2_ctx_mem.va;
+	init_info.q2_pa = iwqp->q2_ctx_mem.pa;
+	init_info.host_ctx = (void *)init_info.q2 + IRDMA_Q2_BUF_SIZE;
+	init_info.host_ctx_pa = init_info.q2_pa + IRDMA_Q2_BUF_SIZE;
+
+	if (init_attr->qp_type == IB_QPT_GSI && rf->sc_dev.is_pf)
+		qp_num = 1;
+	else
+		err_code = irdma_alloc_rsrc(rf, rf->allocated_qps, rf->max_qp,
+					    &qp_num, &rf->next_qp);
+	if (err_code)
+		goto error;
+
+	iwqp->iwdev = iwdev;
+	iwqp->iwpd = iwpd;
+	if (init_attr->qp_type == IB_QPT_GSI && !rf->sc_dev.is_pf)
+		iwqp->ibqp.qp_num = 1;
+	else
+		iwqp->ibqp.qp_num = qp_num;
+
+	qp = &iwqp->sc_qp;
+	iwqp->iwscq = to_iwcq(init_attr->send_cq);
+	iwqp->iwrcq = to_iwcq(init_attr->recv_cq);
+	iwqp->host_ctx.va = init_info.host_ctx;
+	iwqp->host_ctx.pa = init_info.host_ctx_pa;
+	iwqp->host_ctx.size = IRDMA_QP_CTX_SIZE;
+
+	init_info.pd = &iwpd->sc_pd;
+	init_info.qp_uk_init_info.qp_id = iwqp->ibqp.qp_num;
+	if (!rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1))
+		init_info.qp_uk_init_info.first_sq_wq = 1;
+	iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp;
+	init_waitqueue_head(&iwqp->waitq);
+	init_waitqueue_head(&iwqp->mod_qp_waitq);
+
+	if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) {
+		if (init_attr->qp_type != IB_QPT_RC &&
+		    init_attr->qp_type != IB_QPT_UD &&
+		    init_attr->qp_type != IB_QPT_GSI) {
+			err_code = -EINVAL;
+			goto error;
+		}
+	} else {
+		if (init_attr->qp_type != IB_QPT_RC) {
+			err_code = -EINVAL;
+			goto error;
+		}
+	}
+	if (udata) {
+		err_code = ib_copy_from_udata(&req, udata,
+					      min(sizeof(req), udata->inlen));
+		if (err_code) {
+			ibdev_dbg(to_ibdev(iwdev),
+				  "VERBS: ib_copy_from_data fail\n");
+			goto error;
+		}
+
+		iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx;
+		iwqp->user_mode = 1;
+		if (req.user_wqe_bufs) {
+			struct irdma_ucontext *ucontext =
+				rdma_udata_to_drv_context(udata,
+							  struct irdma_ucontext,
+							  ibucontext);
+			spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
+			iwqp->iwpbl = irdma_get_pbl((unsigned long)req.user_wqe_bufs,
+						    &ucontext->qp_reg_mem_list);
+			spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
+
+			if (!iwqp->iwpbl) {
+				err_code = -ENODATA;
+				ibdev_dbg(to_ibdev(iwdev),
+					  "VERBS: no pbl info\n");
+				goto error;
+			}
+		}
+		init_info.qp_uk_init_info.abi_ver = iwpd->sc_pd.abi_ver;
+		err_code = irdma_setup_virt_qp(iwdev, iwqp, &init_info);
+	} else {
+		init_info.qp_uk_init_info.abi_ver = IRDMA_ABI_VER;
+		err_code = irdma_setup_kmode_qp(iwdev, iwqp, &init_info);
+	}
+
+	if (err_code) {
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: setup qp failed\n");
+		goto error;
+	}
+
+	if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) {
+		if (init_attr->qp_type == IB_QPT_RC) {
+			init_info.type = IRDMA_QP_TYPE_ROCE_RC;
+			init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM |
+							    IRDMA_WRITE_WITH_IMM |
+							    IRDMA_ROCE;
+		} else {
+			init_info.type = IRDMA_QP_TYPE_ROCE_UD;
+			init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM |
+							    IRDMA_ROCE;
+		}
+	} else {
+		init_info.type = IRDMA_QP_TYPE_IWARP;
+		init_info.qp_uk_init_info.qp_caps = IRDMA_WRITE_WITH_IMM;
+	}
+
+	ret = dev->iw_priv_qp_ops->qp_init(qp, &init_info);
+	if (ret) {
+		err_code = -EPROTO;
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: qp_init fail\n");
+		goto error;
+	}
+
+	ctx_info = &iwqp->ctx_info;
+	if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) {
+		iwqp->ctx_info.roce_info = &iwqp->roce_info;
+		iwqp->ctx_info.udp_info = &iwqp->udp_info;
+		udp_info = &iwqp->udp_info;
+		udp_info->snd_mss = irdma_roce_mtu(iwdev->vsi.mtu);
+		udp_info->cwnd = 0x400;
+		udp_info->src_port = 0xc000;
+		udp_info->dst_port = ROCE_V2_UDP_DPORT;
+		roce_info = &iwqp->roce_info;
+		ether_addr_copy(roce_info->mac_addr, iwdev->netdev->dev_addr);
+
+		if (init_attr->qp_type == IB_QPT_GSI && !rf->sc_dev.is_pf)
+			roce_info->is_qp1 = true;
+		roce_info->rd_en = true;
+		roce_info->wr_rdresp_en = true;
+
+		roce_info->ack_credits = 0x1E;
+		roce_info->ird_size = IRDMA_MAX_ENCODED_IRD_SIZE;
+		roce_info->ord_size = dev->hw_attrs.max_hw_ord;
+
+		if (!iwqp->user_mode) {
+			roce_info->priv_mode_en = true;
+			roce_info->fast_reg_en = true;
+			roce_info->udprivcq_en = true;
+		}
+		roce_info->roce_tver = 0;
+	} else {
+		iwqp->ctx_info.iwarp_info = &iwqp->iwarp_info;
+		iwarp_info = &iwqp->iwarp_info;
+		ether_addr_copy(iwarp_info->mac_addr, iwdev->netdev->dev_addr);
+		iwarp_info->rd_en = true;
+		iwarp_info->wr_rdresp_en = true;
+
+		if (dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1)
+			iwarp_info->ib_rd_en = true;
+		if (!iwqp->user_mode) {
+			iwarp_info->priv_mode_en = true;
+			iwarp_info->fast_reg_en = true;
+		}
+		iwarp_info->ddp_ver = 1;
+		iwarp_info->rdmap_ver = 1;
+		ctx_info->iwarp_info_valid = true;
+	}
+	ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
+	ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
+	if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1)) {
+		ret = dev->iw_priv_qp_ops->qp_setctx_roce(&iwqp->sc_qp,
+							  iwqp->host_ctx.va,
+							  ctx_info);
+	} else {
+		ret = dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp,
+						     iwqp->host_ctx.va,
+						     ctx_info);
+		ctx_info->iwarp_info_valid = false;
+	}
+
+	cqp_request = irdma_get_cqp_request(iwcqp, true);
+	if (!cqp_request) {
+		err_code = -ENOMEM;
+		goto error;
+	}
+
+	cqp_info = &cqp_request->info;
+	qp_info = &cqp_request->info.in.u.qp_create.info;
+	memset(qp_info, 0, sizeof(*qp_info));
+	qp_info->mac_valid = true;
+	qp_info->cq_num_valid = true;
+	qp_info->next_iwarp_state = IRDMA_QP_STATE_IDLE;
+
+	cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE;
+	cqp_info->post_sq = 1;
+	cqp_info->in.u.qp_create.qp = qp;
+	cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request;
+	ret = irdma_handle_cqp_op(rf, cqp_request);
+	if (ret) {
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: CQP-OP QP create fail");
+		err_code = -ENOMEM;
+		goto error;
+	}
+
+	irdma_add_ref(&iwqp->ibqp);
+	spin_lock_init(&iwqp->lock);
+	spin_lock_init(&iwqp->sc_qp.pfpdu.lock);
+	iwqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) ? 1 : 0;
+	rf->qp_table[qp_num] = iwqp;
+	iwqp->max_send_wr = sq_size;
+	iwqp->max_recv_wr = rq_size;
+	if (udata) {
+		/* GEN_1 legacy support with libi40iw */
+		if (iwpd->sc_pd.abi_ver <= 5) {
+			uresp_gen1.lsmm = 1;
+			uresp_gen1.actual_sq_size = sq_size;
+			uresp_gen1.actual_rq_size = rq_size;
+			uresp_gen1.qp_id = qp_num;
+			uresp_gen1.push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX;
+			uresp_gen1.lsmm = 1;
+			err_code = ib_copy_to_udata(udata, &uresp_gen1,
+						    min(sizeof(uresp_gen1), udata->outlen));
+		} else {
+			if (rdma_protocol_iwarp(&iwdev->iwibdev->ibdev, 1))
+				uresp.lsmm = 1;
+			uresp.actual_sq_size = sq_size;
+			uresp.actual_rq_size = rq_size;
+			uresp.qp_id = qp_num;
+			uresp.qp_caps = qp->qp_uk.qp_caps;
+
+			err_code = ib_copy_to_udata(udata, &uresp,
+						    min(sizeof(uresp), udata->outlen));
+		}
+		if (err_code) {
+			ibdev_dbg(to_ibdev(iwdev),
+				  "VERBS: copy_to_udata failed\n");
+			irdma_destroy_qp(&iwqp->ibqp, udata);
+			return ERR_PTR(err_code);
+		}
+	}
+	init_completion(&iwqp->sq_drained);
+	init_completion(&iwqp->rq_drained);
+	return &iwqp->ibqp;
+
+error:
+	irdma_free_qp_rsrc(iwdev, iwqp, qp_num);
+
+	return ERR_PTR(err_code);
+}
+
+/**
+ * irdma_query - query qp attributes
+ * @ibqp: qp pointer
+ * @attr: attributes pointer
+ * @attr_mask: Not used
+ * @init_attr: qp attributes to return
+ */
+static int irdma_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+			  int attr_mask, struct ib_qp_init_attr *init_attr)
+{
+	struct irdma_qp *iwqp = to_iwqp(ibqp);
+	struct irdma_sc_qp *qp = &iwqp->sc_qp;
+
+	attr->qp_state = iwqp->ibqp_state;
+	attr->cur_qp_state = iwqp->ibqp_state;
+	attr->qp_access_flags = 0;
+	attr->cap.max_send_wr = iwqp->max_send_wr;
+	attr->cap.max_recv_wr = iwqp->max_recv_wr;
+	attr->cap.max_inline_data = qp->qp_uk.max_inline_data;
+	attr->cap.max_send_sge = qp->qp_uk.max_sq_frag_cnt;
+	attr->cap.max_recv_sge = qp->qp_uk.max_rq_frag_cnt;
+	attr->qkey = iwqp->roce_info.qkey;
+
+	init_attr->event_handler = iwqp->ibqp.event_handler;
+	init_attr->qp_context = iwqp->ibqp.qp_context;
+	init_attr->send_cq = iwqp->ibqp.send_cq;
+	init_attr->recv_cq = iwqp->ibqp.recv_cq;
+	init_attr->srq = iwqp->ibqp.srq;
+	init_attr->cap = attr->cap;
+
+	return 0;
+}
+
+/**
+ * irdma_query_pkey - Query partition key
+ * @ibdev: device pointer from stack
+ * @port: port number
+ * @index: index of pkey
+ * @pkey: pointer to store the pkey
+ */
+static int irdma_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
+			    u16 *pkey)
+{
+	struct irdma_device *iwdev = to_iwdev(ibdev);
+
+	if (index >= IRDMA_PKEY_TBL_SZ)
+		return -EINVAL;
+
+	if (rdma_protocol_roce(&iwdev->iwibdev->ibdev, 1))
+		*pkey = IRDMA_DEFAULT_PKEY;
+	else
+		*pkey = 0;
+
+	return 0;
+}
+
+/**
+ * irdma_modify_qp_roce - modify qp request
+ * @ibqp: qp's pointer for modify
+ * @attr: access attributes
+ * @attr_mask: state mask
+ * @udata: user data
+ */
+int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+			 int attr_mask, struct ib_udata *udata)
+{
+	struct irdma_pd *iwpd = to_iwpd(ibqp->pd);
+	struct irdma_qp *iwqp = to_iwqp(ibqp);
+	struct irdma_device *iwdev = iwqp->iwdev;
+	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
+	struct irdma_qp_host_ctx_info *ctx_info;
+	struct irdma_roce_offload_info *roce_info;
+	struct irdma_udp_offload_info *udp_info;
+	struct irdma_modify_qp_info info = {};
+	struct irdma_modify_qp_resp uresp = {};
+	unsigned long flags;
+	u8 issue_modify_qp = 0;
+	int ret = 0;
+
+	ctx_info = &iwqp->ctx_info;
+	roce_info = &iwqp->roce_info;
+	udp_info = &iwqp->udp_info;
+
+	if (attr_mask & IB_QP_DEST_QPN)
+		roce_info->dest_qp = attr->dest_qp_num;
+
+	if (attr_mask & IB_QP_PKEY_INDEX) {
+		ret = irdma_query_pkey(ibqp->device, 0, attr->pkey_index,
+				       &roce_info->p_key);
+		if (ret)
+			return ret;
+	}
+
+	if (attr_mask & IB_QP_QKEY)
+		roce_info->qkey = attr->qkey;
+
+	if (attr_mask & IB_QP_PORT)
+		iwqp->roce_ah.av.attrs.port_num = attr->ah_attr.port_num;
+
+	if (attr_mask & IB_QP_PATH_MTU) {
+		const u16 path_mtu[] = {-1, 256, 512, 1024, 2048, 4096};
+
+		if (attr->path_mtu < IB_MTU_256 ||
+		    attr->path_mtu > IB_MTU_4096 ||
+		    iwdev->vsi.mtu <= path_mtu[attr->path_mtu]) {
+			dev_warn(rfdev_to_dev(dev), "Invalid MTU %d\n",
+				 attr->path_mtu);
+			return -EINVAL;
+		}
+
+		udp_info->snd_mss = path_mtu[attr->path_mtu];
+	}
+
+	if (attr_mask & IB_QP_SQ_PSN) {
+		udp_info->psn_nxt = attr->sq_psn;
+		udp_info->lsn =  0xffff;
+		udp_info->psn_una = attr->sq_psn;
+		udp_info->psn_max = attr->sq_psn;
+	}
+
+	if (attr_mask & IB_QP_RQ_PSN)
+		udp_info->epsn = attr->rq_psn;
+
+	if (attr_mask & IB_QP_RNR_RETRY)
+		udp_info->rnr_nak_thresh = attr->rnr_retry;
+
+	if (attr_mask & IB_QP_RETRY_CNT)
+		udp_info->rexmit_thresh = attr->retry_cnt;
+
+	ctx_info->roce_info->pd_id = iwpd->sc_pd.pd_id;
+
+	if (attr_mask & IB_QP_AV) {
+		struct irdma_av *av = &iwqp->roce_ah.av;
+		const struct ib_gid_attr *sgid_attr;
+		u16 vlan_id = VLAN_N_VID;
+		u32 local_ip[4];
+
+		memset(&iwqp->roce_ah, 0, sizeof(iwqp->roce_ah));
+		if (attr->ah_attr.ah_flags & IB_AH_GRH) {
+			udp_info->ttl = attr->ah_attr.grh.hop_limit;
+			udp_info->flow_label = attr->ah_attr.grh.flow_label;
+			udp_info->tos = attr->ah_attr.grh.traffic_class;
+			dev->ws_remove(iwqp->sc_qp.vsi, ctx_info->user_pri);
+			ctx_info->user_pri = rt_tos2priority(udp_info->tos);
+			iwqp->sc_qp.user_pri = ctx_info->user_pri;
+			if (dev->ws_add(iwqp->sc_qp.vsi, ctx_info->user_pri))
+				return -ENOMEM;
+			irdma_qp_add_qos(&iwqp->sc_qp);
+		}
+		sgid_attr = attr->ah_attr.grh.sgid_attr;
+		ret = rdma_read_gid_l2_fields(sgid_attr, &vlan_id,
+					      ctx_info->roce_info->mac_addr);
+		if (ret)
+			return ret;
+
+		if (vlan_id >= VLAN_N_VID && iwdev->dcb)
+			vlan_id = 0;
+		if (vlan_id < VLAN_N_VID) {
+			udp_info->insert_vlan_tag = true;
+			udp_info->vlan_tag = vlan_id |
+				ctx_info->user_pri << VLAN_PRIO_SHIFT;
+		} else {
+			udp_info->insert_vlan_tag = false;
+		}
+
+		av->attrs = attr->ah_attr;
+		av->attrs.port_num = attr->ah_attr.port_num;
+		rdma_gid2ip(&av->sgid_addr.saddr, &sgid_attr->gid);
+		rdma_gid2ip(&av->dgid_addr.saddr, &attr->ah_attr.grh.dgid);
+		roce_info->local_qp = ibqp->qp_num;
+		if (av->sgid_addr.saddr.sa_family == AF_INET6) {
+			__be32 *daddr =
+				av->dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32;
+			__be32 *saddr =
+				av->sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32;
+
+			irdma_copy_ip_ntohl(&udp_info->dest_ip_addr0, daddr);
+			irdma_copy_ip_ntohl(&udp_info->local_ipaddr0, saddr);
+
+			udp_info->ipv4 = false;
+			irdma_copy_ip_ntohl(local_ip, daddr);
+
+			udp_info->arp_idx = irdma_arp_table(iwdev->rf,
+							    &local_ip[0],
+							    false, NULL,
+							    IRDMA_ARP_RESOLVE);
+		} else {
+			__be32 saddr = av->sgid_addr.saddr_in.sin_addr.s_addr;
+			__be32 daddr = av->dgid_addr.saddr_in.sin_addr.s_addr;
+
+			local_ip[0] = ntohl(daddr);
+
+			udp_info->ipv4 = true;
+			udp_info->dest_ip_addr0 = 0;
+			udp_info->dest_ip_addr1 = 0;
+			udp_info->dest_ip_addr2 = 0;
+			udp_info->dest_ip_addr3 = local_ip[0];
+
+			udp_info->local_ipaddr0 = 0;
+			udp_info->local_ipaddr1 = 0;
+			udp_info->local_ipaddr2 = 0;
+			udp_info->local_ipaddr3 = ntohl(saddr);
+		}
+		udp_info->arp_idx =
+			irdma_add_arp(iwdev->rf, local_ip, udp_info->ipv4,
+				      attr->ah_attr.roce.dmac);
+	}
+
+	if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {
+		if (attr->max_rd_atomic > dev->hw_attrs.max_hw_ord) {
+			dev_err(rfdev_to_dev(dev),
+				"rd_atomic = %d, above max_hw_ord=%d\n",
+				attr->max_rd_atomic, dev->hw_attrs.max_hw_ord);
+			return -EINVAL;
+		}
+		if (attr->max_rd_atomic)
+			roce_info->ord_size = attr->max_rd_atomic;
+		info.ord_valid = true;
+	}
+
+	if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
+		if (attr->max_dest_rd_atomic > dev->hw_attrs.max_hw_ird) {
+			dev_err(rfdev_to_dev(dev),
+				"rd_atomic = %d, above max_hw_ird=%d\n",
+				attr->max_rd_atomic, dev->hw_attrs.max_hw_ird);
+			return -EINVAL;
+		}
+		if (attr->max_dest_rd_atomic)
+			roce_info->ird_size = irdma_derive_hw_ird_setting(attr->max_dest_rd_atomic);
+	}
+
+	if (attr_mask & IB_QP_ACCESS_FLAGS) {
+		if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE)
+			roce_info->wr_rdresp_en = true;
+		if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)
+			roce_info->wr_rdresp_en = true;
+		if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ)
+			roce_info->rd_en = true;
+		if (attr->qp_access_flags & IB_ACCESS_MW_BIND)
+			roce_info->bind_en = true;
+
+		if (iwqp->user_mode) {
+			roce_info->rd_en = true;
+			roce_info->wr_rdresp_en = true;
+			roce_info->priv_mode_en = false;
+		}
+	}
+
+	wait_event(iwqp->mod_qp_waitq, !atomic_read(&iwqp->hw_mod_qp_pend));
+
+	spin_lock_irqsave(&iwqp->lock, flags);
+	if (attr_mask & IB_QP_STATE) {
+		if (!ib_modify_qp_is_ok(iwqp->ibqp_state, attr->qp_state,
+					iwqp->ibqp.qp_type, attr_mask)) {
+			dev_warn(rfdev_to_dev(dev),
+				 "modify_qp invalid for qp_id=%d, old_state=0x%x, new_state=0x%x\n",
+				 iwqp->ibqp.qp_num, iwqp->ibqp_state,
+				 attr->qp_state);
+			ret = -EINVAL;
+			goto exit;
+		}
+		info.curr_iwarp_state = iwqp->iwarp_state;
+
+		switch (attr->qp_state) {
+		case IB_QPS_INIT:
+			if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) {
+				ret = -EINVAL;
+				goto exit;
+			}
+
+			if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) {
+				info.next_iwarp_state = IRDMA_QP_STATE_IDLE;
+				issue_modify_qp = 1;
+			}
+			break;
+		case IB_QPS_RTR:
+			if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) {
+				ret = -EINVAL;
+				goto exit;
+			}
+			info.arp_cache_idx_valid = true;
+			info.cq_num_valid = true;
+			info.next_iwarp_state = IRDMA_QP_STATE_RTR;
+			issue_modify_qp = 1;
+			break;
+		case IB_QPS_RTS:
+			if (iwqp->ibqp_state < IB_QPS_RTR ||
+			    iwqp->ibqp_state == IB_QPS_ERR) {
+				ret = -EINVAL;
+				goto exit;
+			}
+
+			info.arp_cache_idx_valid = true;
+			info.cq_num_valid = true;
+			info.next_iwarp_state = IRDMA_QP_STATE_RTS;
+			issue_modify_qp = 1;
+			if (iwdev->push_mode && udata &&
+			    dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1)
+				irdma_alloc_push_page(iwqp);
+			break;
+		case IB_QPS_SQD:
+			if (iwqp->hw_iwarp_state > IRDMA_QP_STATE_RTS)
+				goto exit;
+
+			if (iwqp->iwarp_state == IRDMA_QP_STATE_CLOSING ||
+			    iwqp->iwarp_state < IRDMA_QP_STATE_RTS)
+				goto exit;
+
+			if (iwqp->iwarp_state > IRDMA_QP_STATE_CLOSING) {
+				ret = -EINVAL;
+				goto exit;
+			}
+
+			info.next_iwarp_state = IRDMA_QP_STATE_ERROR;
+			issue_modify_qp = 1;
+			break;
+		case IB_QPS_SQE:
+		case IB_QPS_ERR:
+		case IB_QPS_RESET:
+			if (iwqp->ibqp_state == IB_QPS_SQD)
+				break;
+
+			if (iwqp->iwarp_state == IRDMA_QP_STATE_ERROR) {
+				ret = -EINVAL;
+				goto exit;
+			}
+
+			info.next_iwarp_state = IRDMA_QP_STATE_ERROR;
+			issue_modify_qp = 1;
+			break;
+		default:
+			ret = -EINVAL;
+			goto exit;
+		}
+
+		iwqp->ibqp_state = attr->qp_state;
+	}
+
+	ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
+	ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
+	ret = dev->iw_priv_qp_ops->qp_setctx_roce(&iwqp->sc_qp,
+						  iwqp->host_ctx.va, ctx_info);
+	spin_unlock_irqrestore(&iwqp->lock, flags);
+
+	if (ret) {
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: setctx_roce\n");
+		return -EINVAL;
+	}
+
+	if (attr_mask & IB_QP_STATE) {
+		if (issue_modify_qp) {
+			ctx_info->rem_endpoint_idx = udp_info->arp_idx;
+			if (irdma_hw_modify_qp(iwdev, iwqp, &info, true))
+				return -EINVAL;
+			spin_lock_irqsave(&iwqp->lock, flags);
+			if (iwqp->iwarp_state == info.curr_iwarp_state) {
+				iwqp->iwarp_state = info.next_iwarp_state;
+				iwqp->ibqp_state = attr->qp_state;
+			}
+			if (iwqp->ibqp_state > IB_QPS_RTS &&
+			    !iwqp->flush_issued) {
+				iwqp->flush_issued = 1;
+				spin_unlock_irqrestore(&iwqp->lock, flags);
+				irdma_flush_wqes(iwdev->rf, iwqp);
+			} else {
+				spin_unlock_irqrestore(&iwqp->lock, flags);
+			}
+		} else {
+			iwqp->ibqp_state = attr->qp_state;
+		}
+		if (udata && dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1) {
+			uresp.push_idx = iwqp->sc_qp.push_idx;
+			uresp.push_offset = iwqp->sc_qp.push_offset;
+			ret = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen));
+			if (ret) {
+				ibdev_dbg(to_ibdev(iwdev),
+					  "VERBS: copy_to_udata failed\n");
+				return ret;
+			}
+		}
+	}
+
+	return 0;
+exit:
+	spin_unlock_irqrestore(&iwqp->lock, flags);
+
+	return ret;
+}
+
+/**
+ * irdma_modify_qp - modify qp request
+ * @ibqp: qp's pointer for modify
+ * @attr: access attributes
+ * @attr_mask: state mask
+ * @udata: user data
+ */
+int irdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
+		    struct ib_udata *udata)
+{
+	struct irdma_qp *iwqp = to_iwqp(ibqp);
+	struct irdma_device *iwdev = iwqp->iwdev;
+	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
+	struct irdma_qp_host_ctx_info *ctx_info;
+	struct irdma_tcp_offload_info *tcp_info;
+	struct irdma_iwarp_offload_info *offload_info;
+	struct irdma_modify_qp_info info = {};
+	struct irdma_modify_qp_resp uresp = {};
+	u8 issue_modify_qp = 0;
+	u8 dont_wait = 0;
+	int err;
+	unsigned long flags;
+
+	ctx_info = &iwqp->ctx_info;
+	offload_info = &iwqp->iwarp_info;
+	tcp_info = &iwqp->tcp_info;
+
+	wait_event(iwqp->mod_qp_waitq, !atomic_read(&iwqp->hw_mod_qp_pend));
+
+	spin_lock_irqsave(&iwqp->lock, flags);
+	if (attr_mask & IB_QP_STATE) {
+		info.curr_iwarp_state = iwqp->iwarp_state;
+		switch (attr->qp_state) {
+		case IB_QPS_INIT:
+		case IB_QPS_RTR:
+			if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) {
+				err = -EINVAL;
+				goto exit;
+			}
+
+			if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) {
+				info.next_iwarp_state = IRDMA_QP_STATE_IDLE;
+				issue_modify_qp = 1;
+			}
+			break;
+		case IB_QPS_RTS:
+			if (iwqp->iwarp_state > IRDMA_QP_STATE_RTS ||
+			    !iwqp->cm_id) {
+				err = -EINVAL;
+				goto exit;
+			}
+
+			issue_modify_qp = 1;
+			iwqp->hw_tcp_state = IRDMA_TCP_STATE_ESTABLISHED;
+			iwqp->hte_added = 1;
+			info.next_iwarp_state = IRDMA_QP_STATE_RTS;
+			info.tcp_ctx_valid = true;
+			info.ord_valid = true;
+			info.arp_cache_idx_valid = true;
+			info.cq_num_valid = true;
+			if (iwdev->push_mode && udata &&
+			    dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1)
+				irdma_alloc_push_page(iwqp);
+			break;
+		case IB_QPS_SQD:
+			if (iwqp->hw_iwarp_state > IRDMA_QP_STATE_RTS) {
+				err = 0;
+				goto exit;
+			}
+
+			if (iwqp->iwarp_state == IRDMA_QP_STATE_CLOSING ||
+			    iwqp->iwarp_state < IRDMA_QP_STATE_RTS) {
+				err = 0;
+				goto exit;
+			}
+
+			if (iwqp->iwarp_state > IRDMA_QP_STATE_CLOSING) {
+				err = -EINVAL;
+				goto exit;
+			}
+
+			info.next_iwarp_state = IRDMA_QP_STATE_CLOSING;
+			issue_modify_qp = 1;
+			break;
+		case IB_QPS_SQE:
+			if (iwqp->iwarp_state >= IRDMA_QP_STATE_TERMINATE) {
+				err = -EINVAL;
+				goto exit;
+			}
+
+			/* fall-through */
+		case IB_QPS_ERR:
+		case IB_QPS_RESET:
+			if (iwqp->iwarp_state == IRDMA_QP_STATE_ERROR) {
+				err = -EINVAL;
+				goto exit;
+			}
+
+			if (iwqp->sc_qp.term_flags) {
+				spin_unlock_irqrestore(&iwqp->lock, flags);
+				irdma_terminate_del_timer(&iwqp->sc_qp);
+				spin_lock_irqsave(&iwqp->lock, flags);
+			}
+			info.next_iwarp_state = IRDMA_QP_STATE_ERROR;
+			if (iwqp->hw_tcp_state > IRDMA_TCP_STATE_CLOSED &&
+			    iwdev->iw_status &&
+			    iwqp->hw_tcp_state != IRDMA_TCP_STATE_TIME_WAIT)
+				info.reset_tcp_conn = true;
+			else
+				dont_wait = 1;
+
+			issue_modify_qp = 1;
+			info.next_iwarp_state = IRDMA_QP_STATE_ERROR;
+			break;
+		default:
+			err = -EINVAL;
+			goto exit;
+		}
+
+		iwqp->ibqp_state = attr->qp_state;
+	}
+	if (attr_mask & IB_QP_ACCESS_FLAGS) {
+		ctx_info->iwarp_info_valid = true;
+		if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE)
+			offload_info->wr_rdresp_en = true;
+		if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)
+			offload_info->wr_rdresp_en = true;
+		if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ)
+			offload_info->rd_en = true;
+		if (attr->qp_access_flags & IB_ACCESS_MW_BIND)
+			offload_info->bind_en = true;
+
+		if (iwqp->user_mode) {
+			offload_info->rd_en = true;
+			offload_info->wr_rdresp_en = true;
+			offload_info->priv_mode_en = false;
+		}
+	}
+
+	if (ctx_info->iwarp_info_valid) {
+		struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
+		int ret;
+
+		ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
+		ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
+		ret = dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp,
+						     iwqp->host_ctx.va,
+						     ctx_info);
+		if (ret) {
+			ibdev_dbg(to_ibdev(iwdev),
+				  "VERBS: setting QP context\n");
+			err = -EINVAL;
+			goto exit;
+		}
+	}
+	spin_unlock_irqrestore(&iwqp->lock, flags);
+
+	if (attr_mask & IB_QP_STATE) {
+		if (issue_modify_qp) {
+			ctx_info->rem_endpoint_idx = tcp_info->arp_idx;
+			if (irdma_hw_modify_qp(iwdev, iwqp, &info, true))
+				return -EINVAL;
+		}
+
+		spin_lock_irqsave(&iwqp->lock, flags);
+		if (iwqp->iwarp_state == info.curr_iwarp_state) {
+			iwqp->iwarp_state = info.next_iwarp_state;
+			iwqp->ibqp_state = attr->qp_state;
+		}
+		spin_unlock_irqrestore(&iwqp->lock, flags);
+	}
+
+	if (issue_modify_qp && iwqp->ibqp_state > IB_QPS_RTS) {
+		if (dont_wait) {
+			if (iwqp->cm_id && iwqp->hw_tcp_state) {
+				spin_lock_irqsave(&iwqp->lock, flags);
+				iwqp->hw_tcp_state = IRDMA_TCP_STATE_CLOSED;
+				iwqp->last_aeq = IRDMA_AE_RESET_SENT;
+				spin_unlock_irqrestore(&iwqp->lock, flags);
+				irdma_cm_disconn(iwqp);
+			}
+		} else {
+			int close_timer_started;
+
+			spin_lock_irqsave(&iwqp->lock, flags);
+			close_timer_started = atomic_inc_return(&iwqp->close_timer_started);
+			if (iwqp->cm_id && close_timer_started == 1) {
+				iwqp->cm_id->add_ref(iwqp->cm_id);
+				spin_unlock_irqrestore(&iwqp->lock, flags);
+				irdma_schedule_cm_timer(iwqp->cm_node,
+							(struct irdma_puda_buf *)iwqp,
+							IRDMA_TIMER_TYPE_CLOSE,
+							1,
+							0);
+			} else {
+				spin_unlock_irqrestore(&iwqp->lock, flags);
+			}
+		}
+	}
+	if (attr_mask & IB_QP_STATE && udata &&
+	    dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1) {
+		uresp.push_idx = iwqp->sc_qp.push_idx;
+		uresp.push_offset = iwqp->sc_qp.push_offset;
+		err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen));
+		if (err) {
+			ibdev_dbg(to_ibdev(iwdev),
+				  "VERBS: copy_to_udata failed\n");
+			return err;
+		}
+	}
+
+	return 0;
+exit:
+	spin_unlock_irqrestore(&iwqp->lock, flags);
+
+	return err;
+}
+
+/**
+ * irdma_cq_free_rsrc - free up resources for cq
+ * @rf: RDMA PCI function
+ * @iwcq: cq ptr
+ */
+static void irdma_cq_free_rsrc(struct irdma_pci_f *rf, struct irdma_cq *iwcq)
+{
+	struct irdma_sc_cq *cq = &iwcq->sc_cq;
+
+	if (!iwcq->user_mode) {
+		dma_free_coherent(hw_to_dev(rf->sc_dev.hw), iwcq->kmem.size,
+				  iwcq->kmem.va, iwcq->kmem.pa);
+		iwcq->kmem.va = NULL;
+		dma_free_coherent(hw_to_dev(rf->sc_dev.hw),
+				  iwcq->kmem_shadow.size,
+				  iwcq->kmem_shadow.va, iwcq->kmem_shadow.pa);
+		iwcq->kmem_shadow.va = NULL;
+	}
+
+	irdma_free_rsrc(rf, rf->allocated_cqs, cq->cq_uk.cq_id);
+}
+
+/**
+ * irdma_free_cqbuf - free a cq buffer
+ * @work: provides access to the cq buffer to free
+ */
+static void irdma_free_cqbuf(struct work_struct *work)
+{
+	struct irdma_cq_buf *cq_buf = container_of(work, struct irdma_cq_buf, work);
+
+	dma_free_coherent(hw_to_dev(cq_buf->hw), cq_buf->kmem_buf.size,
+			  cq_buf->kmem_buf.va, cq_buf->kmem_buf.pa);
+	cq_buf->kmem_buf.va = NULL;
+	kfree(cq_buf);
+}
+
+/**
+ * irdma_process_resize_list - remove resized cq buffers from the resize_list
+ * @iwcq: cq which owns the resize_list
+ * @iwdev: irdma device
+ * @lcqe_buf: the buffer where the last cqe is received
+ */
+static int irdma_process_resize_list(struct irdma_cq *iwcq,
+				     struct irdma_device *iwdev,
+				     struct irdma_cq_buf *lcqe_buf)
+{
+	struct list_head *tmp_node, *list_node;
+	struct irdma_cq_buf *cq_buf;
+	int cnt = 0;
+
+	list_for_each_safe(list_node, tmp_node, &iwcq->resize_list) {
+		cq_buf = list_entry(list_node, struct irdma_cq_buf, list);
+		if (cq_buf == lcqe_buf)
+			return cnt;
+
+		list_del(&cq_buf->list);
+		queue_work(iwdev->rf->free_cqbuf_wq, &cq_buf->work);
+		cnt++;
+	}
+
+	return cnt;
+}
+
+/**
+ * irdma_destroy_cq - destroy cq
+ * @ib_cq: cq pointer
+ * @udata: user data
+ */
+static void irdma_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)
+{
+	struct irdma_cq *iwcq;
+	struct irdma_device *iwdev;
+	struct irdma_sc_cq *cq;
+	unsigned long flags;
+
+	iwcq = to_iwcq(ib_cq);
+	iwdev = to_iwdev(ib_cq->device);
+
+	if (!list_empty(&iwcq->resize_list)) {
+		spin_lock_irqsave(&iwcq->lock, flags);
+		irdma_process_resize_list(iwcq, iwdev, NULL);
+		spin_unlock_irqrestore(&iwcq->lock, flags);
+	}
+	cq = &iwcq->sc_cq;
+	irdma_cq_wq_destroy(iwdev->rf, cq);
+	irdma_cq_free_rsrc(iwdev->rf, iwcq);
+}
+
+/**
+ * irdma_resize_cq - resize cq
+ * @ibcq: cq to be resized
+ * @entries: desired cq size
+ * @udata: user data
+ */
+static int irdma_resize_cq(struct ib_cq *ibcq, int entries,
+			   struct ib_udata *udata)
+{
+	struct irdma_cq *iwcq = to_iwcq(ibcq);
+	struct irdma_sc_dev *dev = iwcq->sc_cq.dev;
+	struct irdma_cqp_request *cqp_request;
+	struct cqp_cmds_info *cqp_info;
+	struct irdma_modify_cq_info *m_info;
+	struct irdma_modify_cq_info info = {};
+	struct irdma_dma_mem kmem_buf;
+	struct irdma_cq_mr *cqmr_buf;
+	struct irdma_pbl *iwpbl_buf;
+	struct irdma_device *iwdev;
+	struct irdma_pci_f *rf;
+	struct irdma_cq_buf *cq_buf = NULL;
+	enum irdma_status_code status = 0;
+	unsigned long flags;
+
+	iwdev = to_iwdev(ibcq->device);
+	rf = iwdev->rf;
+
+	if (!(rf->sc_dev.hw_attrs.uk_attrs.feature_flags &
+	    IRDMA_FEATURE_CQ_RESIZE))
+		return -ENOTSUPP;
+
+	if (entries > rf->max_cqe)
+		return -EINVAL;
+
+	if (!iwcq->user_mode) {
+		entries++;
+		if (rf->sc_dev.hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1)
+			entries *= 2;
+	}
+
+	info.cq_size = max(entries, 4);
+
+	if (info.cq_size == iwcq->sc_cq.cq_uk.cq_size - 1)
+		return 0;
+
+	if (udata) {
+		struct irdma_resize_cq_req req = {};
+		struct irdma_ucontext *ucontext =
+			rdma_udata_to_drv_context(udata, struct irdma_ucontext,
+						  ibucontext);
+
+		/* CQ resize not supported with legacy GEN_1 libi40iw */
+		if (ucontext->abi_ver <= 5)
+			return -ENOTSUPP;
+
+		if (ib_copy_from_udata(&req, udata,
+				       min(sizeof(req), udata->inlen)))
+			return -EINVAL;
+
+		spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
+		iwpbl_buf = irdma_get_pbl((unsigned long)req.user_cq_buffer,
+					  &ucontext->cq_reg_mem_list);
+		spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
+
+		if (!iwpbl_buf)
+			return -ENOMEM;
+
+		cqmr_buf = &iwpbl_buf->cq_mr;
+		if (iwpbl_buf->pbl_allocated) {
+			info.virtual_map = true;
+			info.pbl_chunk_size = 1;
+			info.first_pm_pbl_idx = cqmr_buf->cq_pbl.idx;
+		} else {
+			info.cq_pa = cqmr_buf->cq_pbl.addr;
+		}
+	} else {
+		/* Kmode CQ resize */
+		int rsize;
+
+		rsize = info.cq_size * sizeof(struct irdma_cqe);
+		kmem_buf.size = ALIGN(round_up(rsize, 256), 256);
+		kmem_buf.va = dma_alloc_coherent(hw_to_dev(dev->hw),
+						 kmem_buf.size, &kmem_buf.pa,
+						 GFP_KERNEL);
+		if (!kmem_buf.va)
+			return -ENOMEM;
+
+		info.cq_base = kmem_buf.va;
+		info.cq_pa = kmem_buf.pa;
+		cq_buf = kzalloc(sizeof(*cq_buf), GFP_KERNEL);
+		if (!cq_buf)
+			return -ENOMEM;
+	}
+
+	cqp_request = irdma_get_cqp_request(&rf->cqp, true);
+	if (!cqp_request) {
+		kfree(cq_buf);
+		return -ENOMEM;
+	}
+
+	info.shadow_read_threshold = iwcq->sc_cq.shadow_read_threshold;
+	info.ceq_valid = false;
+	info.cq_resize = true;
+
+	cqp_info = &cqp_request->info;
+	m_info = &cqp_info->in.u.cq_modify.info;
+	memcpy(m_info, &info, sizeof(*m_info));
+
+	cqp_info->cqp_cmd = IRDMA_OP_CQ_MODIFY;
+	cqp_info->in.u.cq_modify.cq = &iwcq->sc_cq;
+	cqp_info->in.u.cq_modify.scratch = (uintptr_t)cqp_request;
+	cqp_info->post_sq = 1;
+	status = irdma_handle_cqp_op(rf, cqp_request);
+	if (status) {
+		kfree(cq_buf);
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: CQP-OP Resize CQ fail");
+		return -EPROTO;
+	}
+
+	spin_lock_irqsave(&iwcq->lock, flags);
+	if (cq_buf) {
+		cq_buf->kmem_buf = iwcq->kmem;
+		cq_buf->hw = dev->hw;
+		memcpy(&cq_buf->cq_uk, &iwcq->sc_cq.cq_uk, sizeof(cq_buf->cq_uk));
+		INIT_WORK(&cq_buf->work, irdma_free_cqbuf);
+		list_add_tail(&cq_buf->list, &iwcq->resize_list);
+		iwcq->kmem = kmem_buf;
+	}
+
+	dev->iw_priv_cq_ops->cq_resize(&iwcq->sc_cq, &info);
+	ibcq->cqe = info.cq_size - 1;
+	spin_unlock_irqrestore(&iwcq->lock, flags);
+
+	return 0;
+}
+
+/**
+ * irdma_create_cq - create cq
+ * @ibcq: CQ allocated
+ * @attr: attributes for cq
+ * @udata: user data
+ */
+static int irdma_create_cq(struct ib_cq *ibcq,
+			   const struct ib_cq_init_attr *attr,
+			   struct ib_udata *udata)
+{
+	struct ib_device *ibdev = ibcq->device;
+	struct irdma_device *iwdev = to_iwdev(ibdev);
+	struct irdma_pci_f *rf = iwdev->rf;
+	struct irdma_cq *iwcq = to_iwcq(ibcq);
+	u32 cq_num = 0;
+	struct irdma_sc_cq *cq;
+	struct irdma_sc_dev *dev = &rf->sc_dev;
+	struct irdma_cq_init_info info = {};
+	enum irdma_status_code status;
+	struct irdma_cqp_request *cqp_request;
+	struct cqp_cmds_info *cqp_info;
+	struct irdma_cq_uk_init_info *ukinfo = &info.cq_uk_init_info;
+	unsigned long flags;
+	int err_code;
+	int entries = attr->cqe;
+
+	err_code = irdma_alloc_rsrc(rf, rf->allocated_cqs, rf->max_cq, &cq_num,
+				    &rf->next_cq);
+	if (err_code)
+		return err_code;
+
+	cq = &iwcq->sc_cq;
+	cq->back_cq = (void *)iwcq;
+	spin_lock_init(&iwcq->lock);
+	INIT_LIST_HEAD(&iwcq->resize_list);
+	info.dev = dev;
+	ukinfo->cq_size = max(entries, 4);
+	ukinfo->cq_id = cq_num;
+	iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size;
+	if (attr->comp_vector < rf->ceqs_count)
+		info.ceq_id = attr->comp_vector;
+	info.ceq_id_valid = true;
+	info.ceqe_mask = 1;
+	info.type = IRDMA_CQ_TYPE_IWARP;
+	info.vsi = &iwdev->vsi;
+
+	if (udata) {
+		struct irdma_ucontext *ucontext;
+		struct irdma_create_cq_req req = {};
+		struct irdma_cq_mr *cqmr;
+		struct irdma_pbl *iwpbl;
+		struct irdma_pbl *iwpbl_shadow;
+		struct irdma_cq_mr *cqmr_shadow;
+
+		iwcq->user_mode = true;
+		ucontext =
+			rdma_udata_to_drv_context(udata, struct irdma_ucontext,
+						  ibucontext);
+		if (ib_copy_from_udata(&req, udata,
+				       min(sizeof(req), udata->inlen))) {
+			err_code = -EFAULT;
+			goto cq_free_rsrc;
+		}
+
+		spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
+		iwpbl = irdma_get_pbl((unsigned long)req.user_cq_buf,
+				      &ucontext->cq_reg_mem_list);
+		spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
+		if (!iwpbl) {
+			err_code = -EPROTO;
+			goto cq_free_rsrc;
+		}
+
+		iwcq->iwpbl = iwpbl;
+		iwcq->cq_mem_size = 0;
+		cqmr = &iwpbl->cq_mr;
+
+		if (rf->sc_dev.hw_attrs.uk_attrs.feature_flags &
+		    IRDMA_FEATURE_CQ_RESIZE &&
+		    ucontext->abi_ver > 5) {
+			spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
+			iwpbl_shadow = irdma_get_pbl(
+					(unsigned long)req.user_shadow_area,
+					&ucontext->cq_reg_mem_list);
+			spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
+
+			if (!iwpbl_shadow) {
+				err_code = -EPROTO;
+				goto cq_free_rsrc;
+			}
+			iwcq->iwpbl_shadow = iwpbl_shadow;
+			cqmr_shadow = &iwpbl_shadow->cq_mr;
+			info.shadow_area_pa = cqmr_shadow->cq_pbl.addr;
+			cqmr->split = true;
+		} else {
+			info.shadow_area_pa = cqmr->shadow;
+		}
+		if (iwpbl->pbl_allocated) {
+			info.virtual_map = true;
+			info.pbl_chunk_size = 1;
+			info.first_pm_pbl_idx = cqmr->cq_pbl.idx;
+		} else {
+			info.cq_base_pa = cqmr->cq_pbl.addr;
+		}
+	} else {
+		/* Kmode allocations */
+		int rsize;
+
+		if (entries > rf->max_cqe) {
+			err_code = -EINVAL;
+			goto cq_free_rsrc;
+		}
+
+		entries++;
+		if (dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1)
+			entries *= 2;
+		ukinfo->cq_size = entries;
+
+		rsize = info.cq_uk_init_info.cq_size * sizeof(struct irdma_cqe);
+		iwcq->kmem.size = ALIGN(round_up(rsize, 256), 256);
+		iwcq->kmem.va = dma_alloc_coherent(hw_to_dev(dev->hw),
+						   iwcq->kmem.size,
+						   &iwcq->kmem.pa, GFP_KERNEL);
+		if (!iwcq->kmem.va) {
+			err_code = -ENOMEM;
+			goto cq_free_rsrc;
+		}
+
+		iwcq->kmem_shadow.size = ALIGN(IRDMA_SHADOW_AREA_SIZE << 3,
+					       64);
+		iwcq->kmem_shadow.va = dma_alloc_coherent(hw_to_dev(dev->hw),
+							  iwcq->kmem_shadow.size,
+							  &iwcq->kmem_shadow.pa,
+							  GFP_KERNEL);
+		if (!iwcq->kmem_shadow.va) {
+			dma_free_coherent(hw_to_dev(rf->sc_dev.hw),
+					  iwcq->kmem.size, iwcq->kmem.va,
+					  iwcq->kmem.pa);
+			iwcq->kmem.va = NULL;
+			err_code = -ENOMEM;
+			goto cq_free_rsrc;
+		}
+		info.shadow_area_pa = iwcq->kmem_shadow.pa;
+		ukinfo->shadow_area = iwcq->kmem_shadow.va;
+		ukinfo->cq_base = iwcq->kmem.va;
+		info.cq_base_pa = iwcq->kmem.pa;
+	}
+
+	if (dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1)
+		info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2,
+						 (u32)IRDMA_MAX_CQ_READ_THRESH);
+	if (dev->iw_priv_cq_ops->cq_init(cq, &info)) {
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: init cq fail\n");
+		err_code = -EPROTO;
+		goto cq_free_rsrc;
+	}
+
+	cqp_request = irdma_get_cqp_request(&rf->cqp, true);
+	if (!cqp_request) {
+		err_code = -ENOMEM;
+		goto cq_free_rsrc;
+	}
+
+	cqp_info = &cqp_request->info;
+	cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE;
+	cqp_info->post_sq = 1;
+	cqp_info->in.u.cq_create.cq = cq;
+	cqp_info->in.u.cq_create.check_overflow = true;
+	cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request;
+	status = irdma_handle_cqp_op(rf, cqp_request);
+	if (status) {
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: CQP-OP Create CQ fail");
+		err_code = -ENOMEM;
+		goto cq_free_rsrc;
+	}
+
+	if (udata) {
+		struct irdma_create_cq_resp resp = {};
+
+		resp.cq_id = info.cq_uk_init_info.cq_id;
+		resp.cq_size = info.cq_uk_init_info.cq_size;
+		if (ib_copy_to_udata(udata, &resp,
+				     min(sizeof(resp), udata->outlen))) {
+			ibdev_dbg(to_ibdev(iwdev),
+				  "VERBS: copy to user data\n");
+			err_code = -EPROTO;
+			goto cq_destroy;
+		}
+	}
+	return 0;
+
+cq_destroy:
+	irdma_cq_wq_destroy(rf, cq);
+cq_free_rsrc:
+	irdma_cq_free_rsrc(rf, iwcq);
+
+	return err_code;
+}
+
+/**
+ * irdma_get_user_access - get hw access from IB access
+ * @acc: IB access to return hw access
+ */
+static inline u16 irdma_get_user_access(int acc)
+{
+	u16 access = 0;
+
+	access |= (acc & IB_ACCESS_LOCAL_WRITE) ?
+		  IRDMA_ACCESS_FLAGS_LOCALWRITE : 0;
+	access |= (acc & IB_ACCESS_REMOTE_WRITE) ?
+		  IRDMA_ACCESS_FLAGS_REMOTEWRITE : 0;
+	access |= (acc & IB_ACCESS_REMOTE_READ) ?
+		  IRDMA_ACCESS_FLAGS_REMOTEREAD : 0;
+	access |= (acc & IB_ACCESS_MW_BIND) ?
+		  IRDMA_ACCESS_FLAGS_BIND_WINDOW : 0;
+
+	return access;
+}
+
+/**
+ * irdma_free_stag - free stag resource
+ * @iwdev: iwarp device
+ * @stag: stag to free
+ */
+static void irdma_free_stag(struct irdma_device *iwdev, u32 stag)
+{
+	u32 stag_idx;
+
+	stag_idx = (stag & iwdev->rf->mr_stagmask) >> IRDMA_CQPSQ_STAG_IDX_S;
+	irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_mrs, stag_idx);
+}
+
+/**
+ * irdma_create_stag - create random stag
+ * @iwdev: iwarp device
+ */
+static u32 irdma_create_stag(struct irdma_device *iwdev)
+{
+	u32 stag = 0;
+	u32 stag_index = 0;
+	u32 next_stag_index;
+	u32 driver_key;
+	u32 random;
+	u8 consumer_key;
+	int ret;
+
+	get_random_bytes(&random, sizeof(random));
+	consumer_key = (u8)random;
+
+	driver_key = random & ~iwdev->rf->mr_stagmask;
+	next_stag_index = (random & iwdev->rf->mr_stagmask) >> 8;
+	next_stag_index %= iwdev->rf->max_mr;
+
+	ret = irdma_alloc_rsrc(iwdev->rf, iwdev->rf->allocated_mrs,
+			       iwdev->rf->max_mr, &stag_index,
+			       &next_stag_index);
+	if (ret)
+		return stag;
+	stag = stag_index << IRDMA_CQPSQ_STAG_IDX_S;
+	stag |= driver_key;
+	stag += (u32)consumer_key;
+
+	return stag;
+}
+
+/**
+ * irdma_next_pbl_addr - Get next pbl address
+ * @pbl: pointer to a pble
+ * @pinfo: info pointer
+ * @idx: index
+ */
+static inline u64 *irdma_next_pbl_addr(u64 *pbl, struct irdma_pble_info **pinfo,
+				       u32 *idx)
+{
+	*idx += 1;
+	if (!(*pinfo) || *idx != (*pinfo)->cnt)
+		return ++pbl;
+	*idx = 0;
+	(*pinfo)++;
+
+	return (u64 *)(uintptr_t)(*pinfo)->addr;
+}
+
+/**
+ * irdma_copy_user_pgaddrs - copy user page address to pble's os locally
+ * @iwmr: iwmr for IB's user page addresses
+ * @pbl: ple pointer to save 1 level or 0 level pble
+ * @level: indicated level 0, 1 or 2
+ */
+static void irdma_copy_user_pgaddrs(struct irdma_mr *iwmr, u64 *pbl,
+				    enum irdma_pble_level level)
+{
+	struct ib_umem *region = iwmr->region;
+	struct irdma_pbl *iwpbl = &iwmr->iwpbl;
+	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
+	struct irdma_pble_info *pinfo;
+	struct ib_block_iter biter;
+	u32 idx = 0;
+	u32 pbl_cnt = 0;
+
+	pinfo = (level == PBLE_LEVEL_1) ? NULL : palloc->level2.leaf;
+
+	if (iwmr->type == IW_MEMREG_TYPE_QP)
+		iwpbl->qp_mr.sq_page = sg_page(region->sg_head.sgl);
+
+	rdma_for_each_block(region->sg_head.sgl, &biter, region->nmap,
+			    iwmr->page_size) {
+		*pbl = rdma_block_iter_dma_address(&biter);
+		if (++pbl_cnt == palloc->total_cnt)
+			break;
+		pbl = irdma_next_pbl_addr(pbl, &pinfo, &idx);
+	}
+}
+
+/**
+ * irdma_check_mem_contiguous - check if pbls stored in arr are contiguous
+ * @arr: lvl1 pbl array
+ * @npages: page count
+ * @pg_size: page size
+ *
+ */
+static bool irdma_check_mem_contiguous(u64 *arr, u32 npages, u32 pg_size)
+{
+	u32 pg_idx;
+
+	for (pg_idx = 0; pg_idx < npages; pg_idx++) {
+		if ((*arr + (pg_size * pg_idx)) != arr[pg_idx])
+			return false;
+	}
+
+	return true;
+}
+
+/**
+ * irdma_check_mr_contiguous - check if MR is physically contiguous
+ * @palloc: pbl allocation struct
+ * @pg_size: page size
+ */
+static bool irdma_check_mr_contiguous(struct irdma_pble_alloc *palloc,
+				      u32 pg_size)
+{
+	struct irdma_pble_level2 *lvl2 = &palloc->level2;
+	struct irdma_pble_info *leaf = lvl2->leaf;
+	u64 *arr = NULL;
+	u64 *start_addr = NULL;
+	int i;
+	bool ret;
+
+	if (palloc->level == PBLE_LEVEL_1) {
+		arr = (u64 *)(uintptr_t)palloc->level1.addr;
+		ret = irdma_check_mem_contiguous(arr, palloc->total_cnt,
+						 pg_size);
+		return ret;
+	}
+
+	start_addr = (u64 *)(uintptr_t)leaf->addr;
+
+	for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) {
+		arr = (u64 *)(uintptr_t)leaf->addr;
+		if ((*start_addr + (i * pg_size * PBLE_PER_PAGE)) != *arr)
+			return false;
+		ret = irdma_check_mem_contiguous(arr, leaf->cnt, pg_size);
+		if (!ret)
+			return false;
+	}
+
+	return true;
+}
+
+/**
+ * irdma_setup_pbles - copy user pg address to pble's
+ * @rf: RDMA PCI function
+ * @iwmr: mr pointer for this memory registration
+ * @use_pbles: flag if to use pble's
+ */
+static int irdma_setup_pbles(struct irdma_pci_f *rf, struct irdma_mr *iwmr,
+			     bool use_pbles)
+{
+	struct irdma_pbl *iwpbl = &iwmr->iwpbl;
+	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
+	struct irdma_pble_info *pinfo;
+	u64 *pbl;
+	enum irdma_status_code status;
+	enum irdma_pble_level level = PBLE_LEVEL_1;
+
+	if (use_pbles) {
+		status = irdma_get_pble(rf->pble_rsrc, palloc, iwmr->page_cnt,
+					false);
+		if (status)
+			return -ENOMEM;
+
+		iwpbl->pbl_allocated = true;
+		level = palloc->level;
+		pinfo = (level == PBLE_LEVEL_1) ? &palloc->level1 :
+						  palloc->level2.leaf;
+		pbl = (u64 *)(uintptr_t)pinfo->addr;
+	} else {
+		pbl = iwmr->pgaddrmem;
+	}
+
+	irdma_copy_user_pgaddrs(iwmr, pbl, level);
+
+	if (use_pbles)
+		iwmr->pgaddrmem[0] = *pbl;
+
+	return 0;
+}
+
+/**
+ * irdma_handle_q_mem - handle memory for qp and cq
+ * @iwdev: iwarp device
+ * @req: information for q memory management
+ * @iwpbl: pble struct
+ * @use_pbles: flag to use pble
+ */
+static int irdma_handle_q_mem(struct irdma_device *iwdev,
+			      struct irdma_mem_reg_req *req,
+			      struct irdma_pbl *iwpbl, bool use_pbles)
+{
+	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
+	struct irdma_mr *iwmr = iwpbl->iwmr;
+	struct irdma_qp_mr *qpmr = &iwpbl->qp_mr;
+	struct irdma_cq_mr *cqmr = &iwpbl->cq_mr;
+	struct irdma_hmc_pble *hmc_p;
+	u64 *arr = iwmr->pgaddrmem;
+	u32 pg_size;
+	int err;
+	int total;
+	bool ret = true;
+
+	total = req->sq_pages + req->rq_pages + req->cq_pages;
+	pg_size = iwmr->page_size;
+	err = irdma_setup_pbles(iwdev->rf, iwmr, use_pbles);
+	if (err)
+		return err;
+
+	if (use_pbles && palloc->level != PBLE_LEVEL_1) {
+		irdma_free_pble(iwdev->rf->pble_rsrc, palloc);
+		iwpbl->pbl_allocated = false;
+		return -ENOMEM;
+	}
+
+	if (use_pbles)
+		arr = (u64 *)(uintptr_t)palloc->level1.addr;
+
+	if (iwmr->type == IW_MEMREG_TYPE_QP) {
+		hmc_p = &qpmr->sq_pbl;
+		qpmr->shadow = (dma_addr_t)arr[total];
+
+		if (use_pbles) {
+			ret = irdma_check_mem_contiguous(arr, req->sq_pages,
+							 pg_size);
+			if (ret)
+				ret = irdma_check_mem_contiguous(&arr[req->sq_pages],
+								 req->rq_pages,
+								 pg_size);
+		}
+
+		if (!ret) {
+			hmc_p->idx = palloc->level1.idx;
+			hmc_p = &qpmr->rq_pbl;
+			hmc_p->idx = palloc->level1.idx + req->sq_pages;
+		} else {
+			hmc_p->addr = arr[0];
+			hmc_p = &qpmr->rq_pbl;
+			hmc_p->addr = arr[req->sq_pages];
+		}
+	} else { /* CQ */
+		hmc_p = &cqmr->cq_pbl;
+
+		if (!cqmr->split)
+			cqmr->shadow = (dma_addr_t)arr[total];
+
+		if (use_pbles)
+			ret = irdma_check_mem_contiguous(arr, req->cq_pages,
+							 pg_size);
+
+		if (!ret)
+			hmc_p->idx = palloc->level1.idx;
+		else
+			hmc_p->addr = arr[0];
+	}
+
+	if (use_pbles && ret) {
+		irdma_free_pble(iwdev->rf->pble_rsrc, palloc);
+		iwpbl->pbl_allocated = false;
+	}
+
+	return err;
+}
+
+/**
+ * irdma_hw_alloc_mw - create the hw memory window
+ * @iwdev: iwarp device
+ * @iwmr: pointer to memory window info
+ */
+static int irdma_hw_alloc_mw(struct irdma_device *iwdev, struct irdma_mr *iwmr)
+{
+	struct irdma_mw_alloc_info *info;
+	struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd);
+	struct irdma_cqp_request *cqp_request;
+	struct cqp_cmds_info *cqp_info;
+
+	cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true);
+	if (!cqp_request)
+		return -ENOMEM;
+
+	cqp_info = &cqp_request->info;
+	info = &cqp_info->in.u.mw_alloc.info;
+	memset(info, 0, sizeof(*info));
+	if (iwmr->ibmw.type == IB_MW_TYPE_1)
+		info->mw_wide = true;
+
+	info->page_size = PAGE_SIZE;
+	info->mw_stag_index = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S;
+	info->pd_id = iwpd->sc_pd.pd_id;
+	info->remote_access = true;
+	cqp_info->cqp_cmd = IRDMA_OP_MW_ALLOC;
+	cqp_info->post_sq = 1;
+	cqp_info->in.u.mw_alloc.dev = &iwdev->rf->sc_dev;
+	cqp_info->in.u.mw_alloc.scratch = (uintptr_t)cqp_request;
+	if (irdma_handle_cqp_op(iwdev->rf, cqp_request)) {
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: CQP-OP allow MW failed\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+/**
+ * irdma_alloc_mw
+ * @pd: Protection domain
+ * @type: Window type
+ * @udata: user data pointer
+ */
+static struct ib_mw *irdma_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
+				    struct ib_udata *udata)
+{
+	struct irdma_device *iwdev = to_iwdev(pd->device);
+	struct irdma_mr *iwmr;
+	int err_code;
+	u32 stag;
+
+	iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
+	if (!iwmr)
+		return ERR_PTR(-ENOMEM);
+
+	stag = irdma_create_stag(iwdev);
+	if (!stag) {
+		err_code = -ENOMEM;
+		goto err;
+	}
+
+	iwmr->stag = stag;
+	iwmr->ibmw.rkey = stag;
+	iwmr->ibmw.pd = pd;
+	iwmr->ibmw.type = type;
+	iwmr->ibmw.device = pd->device;
+	iwmr->type = IW_MEMREG_TYPE_MW;
+
+	err_code = irdma_hw_alloc_mw(iwdev, iwmr);
+	if (err_code)
+		goto err1;
+
+	return &iwmr->ibmw;
+
+err1:
+	irdma_free_stag(iwdev, stag);
+err:
+	kfree(iwmr);
+
+	return ERR_PTR(err_code);
+}
+
+/**
+ * irdma_dealloc_mw
+ * @ibmw: memory window structure.
+ */
+static int irdma_dealloc_mw(struct ib_mw *ibmw)
+{
+	struct ib_pd *ibpd = ibmw->pd;
+	struct irdma_pd *iwpd = to_iwpd(ibpd);
+	struct irdma_mr *iwmr = to_iwmr((struct ib_mr *)ibmw);
+	struct irdma_device *iwdev = to_iwdev(ibmw->device);
+	struct irdma_cqp_request *cqp_request;
+	struct cqp_cmds_info *cqp_info;
+	struct irdma_dealloc_stag_info *info;
+
+	cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true);
+	if (!cqp_request)
+		return -ENOMEM;
+
+	cqp_info = &cqp_request->info;
+	info = &cqp_info->in.u.dealloc_stag.info;
+	memset(info, 0, sizeof(*info));
+	info->pd_id = iwpd->sc_pd.pd_id & 0x00007fff;
+	info->stag_idx = RS_64_1(ibmw->rkey, IRDMA_CQPSQ_STAG_IDX_S);
+	info->mr = false;
+	cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG;
+	cqp_info->post_sq = 1;
+	cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev;
+	cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request;
+	if (irdma_handle_cqp_op(iwdev->rf, cqp_request))
+		ibdev_dbg(to_ibdev(iwdev),
+			  "VERBS: CQP-OP dealloc MW failed for stag_idx = 0x%x\n",
+			  info->stag_idx);
+	irdma_free_stag(iwdev, iwmr->stag);
+	kfree(iwmr);
+
+	return 0;
+}
+
+/**
+ * irdma_hw_alloc_stag - cqp command to allocate stag
+ * @iwdev: iwarp device
+ * @iwmr: iwarp mr pointer
+ */
+static int irdma_hw_alloc_stag(struct irdma_device *iwdev,
+			       struct irdma_mr *iwmr)
+{
+	struct irdma_allocate_stag_info *info;
+	struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd);
+	enum irdma_status_code status;
+	int err = 0;
+	struct irdma_cqp_request *cqp_request;
+	struct cqp_cmds_info *cqp_info;
+
+	cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true);
+	if (!cqp_request)
+		return -ENOMEM;
+
+	cqp_info = &cqp_request->info;
+	info = &cqp_info->in.u.alloc_stag.info;
+	memset(info, 0, sizeof(*info));
+	info->page_size = PAGE_SIZE;
+	info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S;
+	info->pd_id = iwpd->sc_pd.pd_id;
+	info->total_len = iwmr->len;
+	info->remote_access = true;
+	cqp_info->cqp_cmd = IRDMA_OP_ALLOC_STAG;
+	cqp_info->post_sq = 1;
+	cqp_info->in.u.alloc_stag.dev = &iwdev->rf->sc_dev;
+	cqp_info->in.u.alloc_stag.scratch = (uintptr_t)cqp_request;
+	status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
+	if (status) {
+		err = -ENOMEM;
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: CQP-OP MR alloc stag fail");
+	}
+
+	return err;
+}
+
+/**
+ * irdma_alloc_mr - register stag for fast memory registration
+ * @pd: ibpd pointer
+ * @mr_type: memory for stag registrion
+ * @max_num_sg: man number of pages
+ * @udata: user data
+ */
+static struct ib_mr *irdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
+				    u32 max_num_sg, struct ib_udata *udata)
+{
+	struct irdma_device *iwdev = to_iwdev(pd->device);
+	struct irdma_pble_alloc *palloc;
+	struct irdma_pbl *iwpbl;
+	struct irdma_mr *iwmr;
+	enum irdma_status_code status;
+	u32 stag;
+	int err_code = -ENOMEM;
+
+	iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
+	if (!iwmr)
+		return ERR_PTR(-ENOMEM);
+
+	stag = irdma_create_stag(iwdev);
+	if (!stag) {
+		err_code = -ENOMEM;
+		goto err;
+	}
+
+	iwmr->stag = stag;
+	iwmr->ibmr.rkey = stag;
+	iwmr->ibmr.lkey = stag;
+	iwmr->ibmr.pd = pd;
+	iwmr->ibmr.device = pd->device;
+	iwpbl = &iwmr->iwpbl;
+	iwpbl->iwmr = iwmr;
+	iwmr->type = IW_MEMREG_TYPE_MEM;
+	palloc = &iwpbl->pble_alloc;
+	iwmr->page_cnt = max_num_sg;
+	status = irdma_get_pble(iwdev->rf->pble_rsrc, palloc, iwmr->page_cnt,
+				true);
+	if (status)
+		goto err1;
+
+	err_code = irdma_hw_alloc_stag(iwdev, iwmr);
+	if (err_code)
+		goto err2;
+
+	iwpbl->pbl_allocated = true;
+
+	return &iwmr->ibmr;
+err2:
+	irdma_free_pble(iwdev->rf->pble_rsrc, palloc);
+err1:
+	irdma_free_stag(iwdev, stag);
+err:
+	kfree(iwmr);
+
+	return ERR_PTR(err_code);
+}
+
+/**
+ * irdma_set_page - populate pbl list for fmr
+ * @ibmr: ib mem to access iwarp mr pointer
+ * @addr: page dma address fro pbl list
+ */
+static int irdma_set_page(struct ib_mr *ibmr, u64 addr)
+{
+	struct irdma_mr *iwmr = to_iwmr(ibmr);
+	struct irdma_pbl *iwpbl = &iwmr->iwpbl;
+	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
+	u64 *pbl;
+
+	if (unlikely(iwmr->npages == iwmr->page_cnt))
+		return -ENOMEM;
+
+	pbl = (u64 *)(uintptr_t)palloc->level1.addr;
+	pbl[iwmr->npages++] = addr;
+
+	return 0;
+}
+
+/**
+ * irdma_map_mr_sg - map of sg list for fmr
+ * @ibmr: ib mem to access iwarp mr pointer
+ * @sg: scatter gather list
+ * @sg_nents: number of sg pages
+ * @sg_offset: scatter gather list for fmr
+ */
+static int irdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
+			   int sg_nents, unsigned int *sg_offset)
+{
+	struct irdma_mr *iwmr = to_iwmr(ibmr);
+
+	iwmr->npages = 0;
+
+	return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, irdma_set_page);
+}
+
+/**
+ * irdma_drain_sq - drain the send queue
+ * @ibqp: ib qp pointer
+ */
+static void irdma_drain_sq(struct ib_qp *ibqp)
+{
+	struct irdma_qp *iwqp = to_iwqp(ibqp);
+	struct irdma_sc_qp *qp = &iwqp->sc_qp;
+
+	if (IRDMA_RING_MORE_WORK(qp->qp_uk.sq_ring))
+		wait_for_completion(&iwqp->sq_drained);
+}
+
+/**
+ * irdma_drain_rq - drain the receive queue
+ * @ibqp: ib qp pointer
+ */
+static void irdma_drain_rq(struct ib_qp *ibqp)
+{
+	struct irdma_qp *iwqp = to_iwqp(ibqp);
+	struct irdma_sc_qp *qp = &iwqp->sc_qp;
+
+	if (IRDMA_RING_MORE_WORK(qp->qp_uk.rq_ring))
+		wait_for_completion(&iwqp->rq_drained);
+}
+
+/**
+ * irdma_hwreg_mr - send cqp command for memory registration
+ * @iwdev: iwarp device
+ * @iwmr: iwarp mr pointer
+ * @access: access for MR
+ */
+static int irdma_hwreg_mr(struct irdma_device *iwdev, struct irdma_mr *iwmr,
+			  u16 access)
+{
+	struct irdma_pbl *iwpbl = &iwmr->iwpbl;
+	struct irdma_reg_ns_stag_info *stag_info;
+	struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd);
+	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
+	enum irdma_status_code status;
+	int err = 0;
+	struct irdma_cqp_request *cqp_request;
+	struct cqp_cmds_info *cqp_info;
+
+	cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true);
+	if (!cqp_request)
+		return -ENOMEM;
+
+	cqp_info = &cqp_request->info;
+	stag_info = &cqp_info->in.u.mr_reg_non_shared.info;
+	memset(stag_info, 0, sizeof(*stag_info));
+	stag_info->va = (void *)(unsigned long)iwpbl->user_base;
+	stag_info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S;
+	stag_info->stag_key = (u8)iwmr->stag;
+	stag_info->total_len = iwmr->len;
+	stag_info->access_rights = access;
+	stag_info->pd_id = iwpd->sc_pd.pd_id;
+	stag_info->addr_type = IRDMA_ADDR_TYPE_VA_BASED;
+	stag_info->page_size = iwmr->page_size;
+
+	if (iwpbl->pbl_allocated) {
+		if (palloc->level == PBLE_LEVEL_1) {
+			stag_info->first_pm_pbl_index = palloc->level1.idx;
+			stag_info->chunk_size = 1;
+		} else {
+			stag_info->first_pm_pbl_index = palloc->level2.root.idx;
+			stag_info->chunk_size = 3;
+		}
+	} else {
+		stag_info->reg_addr_pa = iwmr->pgaddrmem[0];
+	}
+
+	cqp_info->cqp_cmd = IRDMA_OP_MR_REG_NON_SHARED;
+	cqp_info->post_sq = 1;
+	cqp_info->in.u.mr_reg_non_shared.dev = &iwdev->rf->sc_dev;
+	cqp_info->in.u.mr_reg_non_shared.scratch = (uintptr_t)cqp_request;
+	status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
+	if (status) {
+		err = -ENOMEM;
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: CQP-OP MR Reg fail");
+	}
+
+	return err;
+}
+
+/**
+ * irdma_reg_user_mr - Register a user memory region
+ * @pd: ptr of pd
+ * @start: virtual start address
+ * @len: length of mr
+ * @virt: virtual address
+ * @acc: access of mr
+ * @udata: user data
+ */
+static struct ib_mr *irdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 len,
+				       u64 virt, int acc,
+				       struct ib_udata *udata)
+{
+	struct irdma_device *iwdev = to_iwdev(pd->device);
+	struct irdma_ucontext *ucontext =
+		rdma_udata_to_drv_context(udata, struct irdma_ucontext,
+					  ibucontext);
+	struct irdma_pble_alloc *palloc;
+	struct irdma_pbl *iwpbl;
+	struct irdma_mr *iwmr;
+	struct ib_umem *region;
+	struct irdma_mem_reg_req req;
+	u64 pbl_depth = 0;
+	u32 stag = 0;
+	u16 access;
+	u64 region_len;
+	bool use_pbles = false;
+	unsigned long flags;
+	int err = -ENOSYS;
+	int ret, pg_shift;
+
+	if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size)
+		return ERR_PTR(-EINVAL);
+
+	region = ib_umem_get(udata, start, len, acc, 0);
+	if (IS_ERR(region))
+		return (struct ib_mr *)region;
+
+	if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen))) {
+		ib_umem_release(region);
+		return ERR_PTR(-EFAULT);
+	}
+
+	iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
+	if (!iwmr) {
+		ib_umem_release(region);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	iwpbl = &iwmr->iwpbl;
+	iwpbl->iwmr = iwmr;
+	iwmr->region = region;
+	iwmr->ibmr.pd = pd;
+	iwmr->ibmr.device = pd->device;
+	iwmr->page_size = PAGE_SIZE;
+
+	if (req.reg_type == IW_MEMREG_TYPE_MEM)
+		iwmr->page_size = ib_umem_find_best_pgsz(region,
+							 SZ_4K | SZ_2M | SZ_1G,
+							 virt);
+	region_len = region->length + (start & (iwmr->page_size - 1));
+	pg_shift = ffs(iwmr->page_size) - 1;
+	pbl_depth = region_len >> pg_shift;
+	pbl_depth += (region_len & (iwmr->page_size - 1)) ? 1 : 0;
+	iwmr->len = region->length;
+	iwpbl->user_base = virt;
+	palloc = &iwpbl->pble_alloc;
+	iwmr->type = req.reg_type;
+	iwmr->page_cnt = (u32)pbl_depth;
+
+	switch (req.reg_type) {
+	case IW_MEMREG_TYPE_QP:
+		use_pbles = ((req.sq_pages + req.rq_pages) > 2);
+		err = irdma_handle_q_mem(iwdev, &req, iwpbl, use_pbles);
+		if (err)
+			goto error;
+
+		spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
+		list_add_tail(&iwpbl->list, &ucontext->qp_reg_mem_list);
+		iwpbl->on_list = true;
+		spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
+		break;
+	case IW_MEMREG_TYPE_CQ:
+		use_pbles = (req.cq_pages > 1);
+		err = irdma_handle_q_mem(iwdev, &req, iwpbl, use_pbles);
+		if (err)
+			goto error;
+
+		spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
+		list_add_tail(&iwpbl->list, &ucontext->cq_reg_mem_list);
+		iwpbl->on_list = true;
+		spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
+		break;
+	case IW_MEMREG_TYPE_MEM:
+		use_pbles = (iwmr->page_cnt != 1);
+		access = IRDMA_ACCESS_FLAGS_LOCALREAD;
+
+		err = irdma_setup_pbles(iwdev->rf, iwmr, use_pbles);
+		if (err)
+			goto error;
+
+		if (use_pbles) {
+			ret = irdma_check_mr_contiguous(palloc,
+							iwmr->page_size);
+			if (ret) {
+				irdma_free_pble(iwdev->rf->pble_rsrc, palloc);
+				iwpbl->pbl_allocated = false;
+			}
+		}
+
+		access |= irdma_get_user_access(acc);
+		stag = irdma_create_stag(iwdev);
+		if (!stag) {
+			err = -ENOMEM;
+			goto error;
+		}
+
+		iwmr->stag = stag;
+		iwmr->ibmr.rkey = stag;
+		iwmr->ibmr.lkey = stag;
+		err = irdma_hwreg_mr(iwdev, iwmr, access);
+		if (err) {
+			irdma_free_stag(iwdev, stag);
+			goto error;
+		}
+
+		break;
+	default:
+		goto error;
+	}
+
+	iwmr->type = req.reg_type;
+
+	return &iwmr->ibmr;
+
+error:
+	if (palloc->level != PBLE_LEVEL_0 && iwpbl->pbl_allocated)
+		irdma_free_pble(iwdev->rf->pble_rsrc, palloc);
+	ib_umem_release(region);
+	kfree(iwmr);
+
+	return ERR_PTR(err);
+}
+
+/**
+ * irdma_reg_phys_mr - register kernel physical memory
+ * @pd: ibpd pointer
+ * @addr: physical address of memory to register
+ * @size: size of memory to register
+ * @acc: Access rights
+ * @iova_start: start of virtual address for physical buffers
+ */
+struct ib_mr *irdma_reg_phys_mr(struct ib_pd *pd, u64 addr, u64 size, int acc,
+				u64 *iova_start)
+{
+	struct irdma_device *iwdev = to_iwdev(pd->device);
+	struct irdma_pbl *iwpbl;
+	struct irdma_mr *iwmr;
+	enum irdma_status_code status;
+	u32 stag;
+	u16 access = IRDMA_ACCESS_FLAGS_LOCALREAD;
+	int ret;
+
+	iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
+	if (!iwmr)
+		return ERR_PTR(-ENOMEM);
+
+	iwmr->ibmr.pd = pd;
+	iwmr->ibmr.device = pd->device;
+	iwpbl = &iwmr->iwpbl;
+	iwpbl->iwmr = iwmr;
+	iwmr->type = IW_MEMREG_TYPE_MEM;
+	iwpbl->user_base = *iova_start;
+	stag = irdma_create_stag(iwdev);
+	if (!stag) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	access |= irdma_get_user_access(acc);
+	iwmr->stag = stag;
+	iwmr->ibmr.rkey = stag;
+	iwmr->ibmr.lkey = stag;
+	iwmr->page_cnt = 1;
+	iwmr->pgaddrmem[0] = addr;
+	iwmr->len = size;
+	status = irdma_hwreg_mr(iwdev, iwmr, access);
+	if (status) {
+		irdma_free_stag(iwdev, stag);
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	return &iwmr->ibmr;
+
+err:
+	kfree(iwmr);
+
+	return ERR_PTR(ret);
+}
+
+/**
+ * irdma_get_dma_mr - register physical mem
+ * @pd: ptr of pd
+ * @acc: access for memory
+ */
+static struct ib_mr *irdma_get_dma_mr(struct ib_pd *pd, int acc)
+{
+	u64 kva = 0;
+
+	return irdma_reg_phys_mr(pd, 0, 0, acc, &kva);
+}
+
+/**
+ * irdma_del_mem_list - Deleting pbl list entries for CQ/QP
+ * @iwmr: iwmr for IB's user page addresses
+ * @ucontext: ptr to user context
+ */
+static void irdma_del_memlist(struct irdma_mr *iwmr,
+			      struct irdma_ucontext *ucontext)
+{
+	struct irdma_pbl *iwpbl = &iwmr->iwpbl;
+	unsigned long flags;
+
+	switch (iwmr->type) {
+	case IW_MEMREG_TYPE_CQ:
+		spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
+		if (iwpbl->on_list) {
+			iwpbl->on_list = false;
+			list_del(&iwpbl->list);
+		}
+		spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
+		break;
+	case IW_MEMREG_TYPE_QP:
+		spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
+		if (iwpbl->on_list) {
+			iwpbl->on_list = false;
+			list_del(&iwpbl->list);
+		}
+		spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
+		break;
+	default:
+		break;
+	}
+}
+
+/**
+ * irdma_dereg_mr - deregister mr
+ * @ib_mr: mr ptr for dereg
+ * @udata: user data
+ */
+static int irdma_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata)
+{
+	struct ib_pd *ibpd = ib_mr->pd;
+	struct irdma_pd *iwpd = to_iwpd(ibpd);
+	struct irdma_mr *iwmr = to_iwmr(ib_mr);
+	struct irdma_device *iwdev = to_iwdev(ib_mr->device);
+	enum irdma_status_code status;
+	struct irdma_dealloc_stag_info *info;
+	struct irdma_pbl *iwpbl = &iwmr->iwpbl;
+	struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
+	struct irdma_cqp_request *cqp_request;
+	struct cqp_cmds_info *cqp_info;
+	u32 stag_idx;
+
+	if (iwmr->type != IW_MEMREG_TYPE_MEM) {
+		if (iwmr->region) {
+			struct irdma_ucontext *ucontext;
+
+			ucontext = rdma_udata_to_drv_context(udata,
+						struct irdma_ucontext,
+						ibucontext);
+			irdma_del_memlist(iwmr, ucontext);
+		}
+		goto done;
+	}
+
+	cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true);
+	if (!cqp_request)
+		return -ENOMEM;
+
+	cqp_info = &cqp_request->info;
+	info = &cqp_info->in.u.dealloc_stag.info;
+	memset(info, 0, sizeof(*info));
+	info->pd_id = iwpd->sc_pd.pd_id & 0x00007fff;
+	info->stag_idx = RS_64_1(ib_mr->rkey, IRDMA_CQPSQ_STAG_IDX_S);
+	stag_idx = info->stag_idx;
+	info->mr = true;
+	if (iwpbl->pbl_allocated)
+		info->dealloc_pbl = true;
+
+	cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG;
+	cqp_info->post_sq = 1;
+	cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev;
+	cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request;
+	status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
+	if (status)
+		ibdev_dbg(to_ibdev(iwdev),
+			  "VERBS: CQP-OP dealloc failed for stag_idx = 0x%x\n",
+			  stag_idx);
+	irdma_free_stag(iwdev, iwmr->stag);
+done:
+	if (iwpbl->pbl_allocated)
+		irdma_free_pble(iwdev->rf->pble_rsrc, palloc);
+	ib_umem_release(iwmr->region);
+	kfree(iwmr);
+
+	return 0;
+}
+
+static ssize_t hw_rev_show(struct device *dev, struct device_attribute *attr,
+			   char *buf)
+{
+	struct irdma_ib_device *iwibdev =
+		rdma_device_to_drv_device(dev, struct irdma_ib_device, ibdev);
+	u32 hw_rev = iwibdev->iwdev->rf->sc_dev.pci_rev;
+
+	return sprintf(buf, "%x\n", hw_rev);
+}
+
+static ssize_t hca_type_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	return sprintf(buf, "IRDMA\n");
+}
+
+static DEVICE_ATTR_RO(hw_rev);
+static DEVICE_ATTR_RO(hca_type);
+
+static struct attribute *irdma_dev_attributes[] = { &dev_attr_hw_rev.attr,
+						    &dev_attr_hca_type.attr,
+						    NULL };
+
+static const struct attribute_group irdma_attr_group = {
+	.attrs = irdma_dev_attributes,
+};
+
+/**
+ * irdma_copy_sg_list - copy sg list for qp
+ * @sg_list: copied into sg_list
+ * @sgl: copy from sgl
+ * @num_sges: count of sg entries
+ */
+static void irdma_copy_sg_list(struct irdma_sge *sg_list, struct ib_sge *sgl,
+			       int num_sges)
+{
+	unsigned int i;
+
+	for (i = 0; (i < num_sges) && (i < IRDMA_MAX_WQ_FRAGMENT_COUNT); i++) {
+		sg_list[i].tag_off = sgl[i].addr;
+		sg_list[i].len = sgl[i].length;
+		sg_list[i].stag = sgl[i].lkey;
+	}
+}
+
+/**
+ * irdma_post_send -  kernel application wr
+ * @ibqp: qp ptr for wr
+ * @ib_wr: work request ptr
+ * @bad_wr: return of bad wr if err
+ */
+static int irdma_post_send(struct ib_qp *ibqp,
+			   const struct ib_send_wr *ib_wr,
+			   const struct ib_send_wr **bad_wr)
+{
+	struct irdma_qp *iwqp;
+	struct irdma_qp_uk *ukqp;
+	struct irdma_sc_dev *dev;
+	struct irdma_post_sq_info info;
+	enum irdma_status_code ret;
+	int err = 0;
+	unsigned long flags;
+	bool inv_stag;
+	struct irdma_ah *ah;
+	bool reflush = false;
+
+	iwqp = to_iwqp(ibqp);
+	ukqp = &iwqp->sc_qp.qp_uk;
+	dev = &iwqp->iwdev->rf->sc_dev;
+
+	spin_lock_irqsave(&iwqp->lock, flags);
+	if (iwqp->flush_issued && ukqp->sq_flush_complete)
+		reflush = true;
+
+	while (ib_wr) {
+		memset(&info, 0, sizeof(info));
+		inv_stag = false;
+		info.wr_id = (ib_wr->wr_id);
+		if ((ib_wr->send_flags & IB_SEND_SIGNALED) || iwqp->sig_all)
+			info.signaled = true;
+		if (ib_wr->send_flags & IB_SEND_FENCE)
+			info.read_fence = true;
+		switch (ib_wr->opcode) {
+		case IB_WR_SEND_WITH_IMM:
+			if (ukqp->qp_caps & IRDMA_SEND_WITH_IMM) {
+				info.imm_data_valid = true;
+				info.imm_data = ntohl(ib_wr->ex.imm_data);
+			} else {
+				err = -EINVAL;
+				break;
+			}
+			/* fall-through */
+		case IB_WR_SEND:
+			/* fall-through */
+		case IB_WR_SEND_WITH_INV:
+			if (ib_wr->opcode == IB_WR_SEND ||
+			    ib_wr->opcode == IB_WR_SEND_WITH_IMM) {
+				if (ib_wr->send_flags & IB_SEND_SOLICITED)
+					info.op_type = IRDMA_OP_TYPE_SEND_SOL;
+				else
+					info.op_type = IRDMA_OP_TYPE_SEND;
+			} else {
+				if (ib_wr->send_flags & IB_SEND_SOLICITED)
+					info.op_type = IRDMA_OP_TYPE_SEND_SOL_INV;
+				else
+					info.op_type = IRDMA_OP_TYPE_SEND_INV;
+				info.stag_to_inv = ib_wr->ex.invalidate_rkey;
+			}
+
+			if (ib_wr->send_flags & IB_SEND_INLINE) {
+				info.op.inline_send.data = (void *)(unsigned long)
+							   ib_wr->sg_list[0].addr;
+				info.op.inline_send.len = ib_wr->sg_list[0].length;
+				if (iwqp->ibqp.qp_type == IB_QPT_UD ||
+				    iwqp->ibqp.qp_type == IB_QPT_GSI) {
+					ah = to_iwah(ud_wr(ib_wr)->ah);
+					info.op.inline_send.ah_id = ah->sc_ah.ah_info.ah_idx;
+					info.op.inline_send.qkey = ud_wr(ib_wr)->remote_qkey;
+					info.op.inline_send.dest_qp = ud_wr(ib_wr)->remote_qpn;
+				}
+				ret = ukqp->qp_ops.iw_inline_send(ukqp, &info,
+								  false);
+			} else {
+				info.op.send.num_sges = ib_wr->num_sge;
+				info.op.send.sg_list = (struct irdma_sge *)
+						       ib_wr->sg_list;
+				if (iwqp->ibqp.qp_type == IB_QPT_UD ||
+				    iwqp->ibqp.qp_type == IB_QPT_GSI) {
+					ah = to_iwah(ud_wr(ib_wr)->ah);
+					info.op.send.ah_id = ah->sc_ah.ah_info.ah_idx;
+					info.op.send.qkey = ud_wr(ib_wr)->remote_qkey;
+					info.op.send.dest_qp = ud_wr(ib_wr)->remote_qpn;
+				}
+				ret = ukqp->qp_ops.iw_send(ukqp, &info, false);
+			}
+
+			if (ret) {
+				if (ret == IRDMA_ERR_QP_TOOMANY_WRS_POSTED)
+					err = -ENOMEM;
+				else
+					err = -EINVAL;
+			}
+			break;
+		case IB_WR_RDMA_WRITE_WITH_IMM:
+			if (ukqp->qp_caps & IRDMA_WRITE_WITH_IMM) {
+				info.imm_data_valid = true;
+				info.imm_data = ntohl(ib_wr->ex.imm_data);
+			} else {
+				err = -EINVAL;
+				break;
+			}
+			/* fall-through */
+		case IB_WR_RDMA_WRITE:
+			if (ib_wr->send_flags & IB_SEND_SOLICITED)
+				info.op_type = IRDMA_OP_TYPE_RDMA_WRITE_SOL;
+			else
+				info.op_type = IRDMA_OP_TYPE_RDMA_WRITE;
+
+			if (ib_wr->send_flags & IB_SEND_INLINE) {
+				info.op.inline_rdma_write.data = (void *)(uintptr_t)ib_wr->sg_list[0].addr;
+				info.op.inline_rdma_write.len = ib_wr->sg_list[0].length;
+				info.op.inline_rdma_write.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr;
+				info.op.inline_rdma_write.rem_addr.stag = rdma_wr(ib_wr)->rkey;
+				ret = ukqp->qp_ops.iw_inline_rdma_write(ukqp, &info, false);
+			} else {
+				info.op.rdma_write.lo_sg_list = (void *)ib_wr->sg_list;
+				info.op.rdma_write.num_lo_sges = ib_wr->num_sge;
+				info.op.rdma_write.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr;
+				info.op.rdma_write.rem_addr.stag = rdma_wr(ib_wr)->rkey;
+				ret = ukqp->qp_ops.iw_rdma_write(ukqp, &info, false);
+			}
+
+			if (ret) {
+				if (ret == IRDMA_ERR_QP_TOOMANY_WRS_POSTED)
+					err = -ENOMEM;
+				else
+					err = -EINVAL;
+			}
+			break;
+		case IB_WR_RDMA_READ_WITH_INV:
+			inv_stag = true;
+			/* fall-through*/
+		case IB_WR_RDMA_READ:
+			if (ib_wr->num_sge >
+			    dev->hw_attrs.uk_attrs.max_hw_read_sges) {
+				err = -EINVAL;
+				break;
+			}
+			info.op_type = IRDMA_OP_TYPE_RDMA_READ;
+			info.op.rdma_read.rem_addr.tag_off = rdma_wr(ib_wr)->remote_addr;
+			info.op.rdma_read.rem_addr.stag = rdma_wr(ib_wr)->rkey;
+			info.op.rdma_read.lo_sg_list = (void *)ib_wr->sg_list;
+			info.op.rdma_read.num_lo_sges = ib_wr->num_sge;
+
+			ret = ukqp->qp_ops.iw_rdma_read(ukqp, &info, inv_stag,
+							false);
+			if (ret) {
+				if (ret == IRDMA_ERR_QP_TOOMANY_WRS_POSTED)
+					err = -ENOMEM;
+				else
+					err = -EINVAL;
+			}
+			break;
+		case IB_WR_LOCAL_INV:
+			info.op_type = IRDMA_OP_TYPE_INV_STAG;
+			info.op.inv_local_stag.target_stag = ib_wr->ex.invalidate_rkey;
+			ret = ukqp->qp_ops.iw_stag_local_invalidate(ukqp, &info, true);
+			if (ret)
+				err = -ENOMEM;
+			break;
+		case IB_WR_REG_MR: {
+			struct irdma_mr *iwmr = to_iwmr(reg_wr(ib_wr)->mr);
+			int flags = reg_wr(ib_wr)->access;
+			struct irdma_pble_alloc *palloc = &iwmr->iwpbl.pble_alloc;
+			struct irdma_fast_reg_stag_info info = {};
+
+			info.access_rights = IRDMA_ACCESS_FLAGS_LOCALREAD;
+			info.access_rights |= irdma_get_user_access(flags);
+			info.stag_key = reg_wr(ib_wr)->key & 0xff;
+			info.stag_idx = reg_wr(ib_wr)->key >> 8;
+			info.page_size = reg_wr(ib_wr)->mr->page_size;
+			info.wr_id = ib_wr->wr_id;
+			info.addr_type = IRDMA_ADDR_TYPE_VA_BASED;
+			info.va = (void *)(uintptr_t)iwmr->ibmr.iova;
+			info.total_len = iwmr->ibmr.length;
+			info.reg_addr_pa = *((u64 *)(uintptr_t)palloc->level1.addr);
+			info.first_pm_pbl_index = palloc->level1.idx;
+			info.local_fence = ib_wr->send_flags & IB_SEND_FENCE;
+			info.signaled = ib_wr->send_flags & IB_SEND_SIGNALED;
+			if (iwmr->npages > IRDMA_MIN_PAGES_PER_FMR)
+				info.chunk_size = 1;
+			ret = dev->iw_priv_qp_ops->iw_mr_fast_register(&iwqp->sc_qp,
+								       &info,
+								       true);
+			if (ret)
+				err = -ENOMEM;
+			break;
+		}
+		default:
+			err = -EINVAL;
+			ibdev_dbg(to_ibdev(iwqp->iwdev),
+				  "VERBS: upost_send bad opcode = 0x%x\n",
+				  ib_wr->opcode);
+			break;
+		}
+
+		if (err)
+			break;
+		ib_wr = ib_wr->next;
+	}
+
+	if (!iwqp->flush_issued && iwqp->hw_iwarp_state <= IRDMA_QP_STATE_RTS) {
+		ukqp->qp_ops.iw_qp_post_wr(ukqp);
+		spin_unlock_irqrestore(&iwqp->lock, flags);
+	} else if (reflush) {
+		struct irdma_qp_flush_info flush_info = {};
+		struct irdma_pci_f *rf = iwqp->iwdev->rf;
+
+		iwqp->sc_qp.flush_sq = false;
+		iwqp->sc_qp.term_flags = 0;
+		spin_unlock_irqrestore(&iwqp->lock, flags);
+		ukqp->sq_flush_complete = false;
+		flush_info.sq = true;
+		flush_info.sq_major_code = IRDMA_FLUSH_MAJOR_ERR;
+		flush_info.sq_minor_code = IRDMA_FLUSH_MAJOR_ERR;
+		irdma_hw_flush_wqes(rf, &iwqp->sc_qp, &flush_info, false);
+	} else {
+		spin_unlock_irqrestore(&iwqp->lock, flags);
+	}
+	if (err)
+		*bad_wr = ib_wr;
+
+	return err;
+}
+
+/**
+ * irdma_post_recv - post receive wr for kernel application
+ * @ibqp: ib qp pointer
+ * @ib_wr: work request for receive
+ * @bad_wr: bad wr caused an error
+ */
+static int irdma_post_recv(struct ib_qp *ibqp,
+			   const struct ib_recv_wr *ib_wr,
+			   const struct ib_recv_wr **bad_wr)
+{
+	struct irdma_qp *iwqp;
+	struct irdma_qp_uk *ukqp;
+	struct irdma_post_rq_info post_recv = {};
+	struct irdma_sge sg_list[IRDMA_MAX_WQ_FRAGMENT_COUNT];
+	enum irdma_status_code ret = 0;
+	unsigned long flags;
+	int err = 0;
+	bool reflush = false;
+
+	iwqp = to_iwqp(ibqp);
+	ukqp = &iwqp->sc_qp.qp_uk;
+
+	spin_lock_irqsave(&iwqp->lock, flags);
+	if (iwqp->flush_issued && ukqp->rq_flush_complete)
+		reflush = true;
+
+	while (ib_wr) {
+		post_recv.num_sges = ib_wr->num_sge;
+		post_recv.wr_id = ib_wr->wr_id;
+		irdma_copy_sg_list(sg_list, ib_wr->sg_list, ib_wr->num_sge);
+		post_recv.sg_list = sg_list;
+		ret = ukqp->qp_ops.iw_post_receive(ukqp, &post_recv);
+		if (ret) {
+			ibdev_dbg(to_ibdev(iwqp->iwdev),
+				  "VERBS: post_recv err %d\n", ret);
+			if (ret == IRDMA_ERR_QP_TOOMANY_WRS_POSTED)
+				err = -ENOMEM;
+			else
+				err = -EINVAL;
+			goto out;
+		}
+
+		ib_wr = ib_wr->next;
+	}
+
+out:
+	if (reflush) {
+		struct irdma_qp_flush_info flush_info = {};
+		struct irdma_pci_f *rf = iwqp->iwdev->rf;
+
+		iwqp->sc_qp.flush_rq = false;
+		spin_unlock_irqrestore(&iwqp->lock, flags);
+		ukqp->rq_flush_complete = false;
+		flush_info.rq = true;
+		irdma_hw_flush_wqes(rf, &iwqp->sc_qp, &flush_info, false);
+	} else {
+		spin_unlock_irqrestore(&iwqp->lock, flags);
+	}
+
+	if (err)
+		*bad_wr = ib_wr;
+
+	return err;
+}
+
+/**
+ * irdma_process_cqe - process cqe info
+ * @entry: processed cqe
+ * @cq_poll_info: cqe info
+ */
+static void irdma_process_cqe(struct ib_wc *entry,
+			      struct irdma_cq_poll_info *cq_poll_info)
+{
+	struct irdma_qp *iwqp;
+	struct irdma_sc_qp *qp;
+
+	entry->wc_flags = 0;
+	entry->pkey_index = 0;
+	entry->wr_id = cq_poll_info->wr_id;
+
+	if (cq_poll_info->error) {
+		if (cq_poll_info->comp_status ==
+		    IRDMA_COMPL_STATUS_FLUSHED)
+			entry->status = IB_WC_WR_FLUSH_ERR;
+		else if (cq_poll_info->comp_status ==
+			 IRDMA_COMPL_STATUS_INVALID_LEN)
+			entry->status = IB_WC_LOC_LEN_ERR;
+		else
+			entry->status = IB_WC_GENERAL_ERR;
+		entry->vendor_err = cq_poll_info->major_err << 16 |
+				    cq_poll_info->minor_err;
+	} else {
+		entry->status = IB_WC_SUCCESS;
+		if (cq_poll_info->imm_valid) {
+			entry->ex.imm_data = htonl(cq_poll_info->imm_data);
+			entry->wc_flags |= IB_WC_WITH_IMM;
+		}
+		if (cq_poll_info->ud_smac_valid) {
+			ether_addr_copy(entry->smac, cq_poll_info->ud_smac);
+			entry->wc_flags |= IB_WC_WITH_SMAC;
+		}
+
+		if (cq_poll_info->ud_vlan_valid) {
+			entry->vlan_id = cq_poll_info->ud_vlan & VLAN_VID_MASK;
+			entry->wc_flags |= IB_WC_WITH_VLAN;
+			entry->sl = cq_poll_info->ud_vlan >> VLAN_PRIO_SHIFT;
+		}
+	}
+
+	switch (cq_poll_info->op_type) {
+	case IRDMA_OP_TYPE_RDMA_WRITE:
+		entry->opcode = IB_WC_RDMA_WRITE;
+		break;
+	case IRDMA_OP_TYPE_RDMA_READ_INV_STAG:
+	case IRDMA_OP_TYPE_RDMA_READ:
+		entry->opcode = IB_WC_RDMA_READ;
+		break;
+	case IRDMA_OP_TYPE_SEND_INV:
+	case IRDMA_OP_TYPE_SEND_SOL:
+	case IRDMA_OP_TYPE_SEND_SOL_INV:
+	case IRDMA_OP_TYPE_SEND:
+		entry->opcode = IB_WC_SEND;
+		if (cq_poll_info->stag_invalid_set)
+			entry->ex.invalidate_rkey = cq_poll_info->inv_stag;
+		break;
+	case IRDMA_OP_TYPE_REC:
+		entry->opcode = IB_WC_RECV;
+		break;
+	case IRDMA_OP_TYPE_REC_IMM:
+		entry->opcode = IB_WC_RECV_RDMA_WITH_IMM;
+		break;
+	default:
+		entry->opcode = IB_WC_RECV;
+		break;
+	}
+
+	qp = cq_poll_info->qp_handle;
+	entry->qp = qp->qp_uk.back_qp;
+
+	if (qp->qp_type == IRDMA_QP_TYPE_ROCE_UD) {
+		entry->src_qp = cq_poll_info->ud_src_qpn;
+		entry->wc_flags |=
+			(IB_WC_GRH | IB_WC_WITH_NETWORK_HDR_TYPE);
+		entry->network_hdr_type = cq_poll_info->ipv4 ?
+						  RDMA_NETWORK_IPV4 :
+						  RDMA_NETWORK_IPV6;
+	} else {
+		entry->src_qp = cq_poll_info->qp_id;
+	}
+	iwqp = qp->qp_uk.back_qp;
+	if (iwqp->iwarp_state > IRDMA_QP_STATE_RTS) {
+		if (!IRDMA_RING_MORE_WORK(qp->qp_uk.sq_ring))
+			complete(&iwqp->sq_drained);
+		if (!IRDMA_RING_MORE_WORK(qp->qp_uk.rq_ring))
+			complete(&iwqp->rq_drained);
+	}
+		entry->byte_len = cq_poll_info->bytes_xfered;
+}
+
+/**
+ * irdma_get_cqes - get cq entries
+ * @num_entries: requested number of entries
+ * @cqe_count: received number of entries
+ * @ukcq: cq to get completion entries from
+ * @new_cqe: true, if at least one completion
+ * @entry: wr of a completed entry
+ */
+static int irdma_get_cqes(struct irdma_cq_uk *ukcq,
+			  int num_entries,
+			  int *cqe_count,
+			  bool *new_cqe,
+			  struct ib_wc **entry)
+{
+	struct irdma_cq_poll_info cq_poll_info;
+	int ret = 0;
+
+	while (*cqe_count < num_entries) {
+		ret = ukcq->ops.iw_cq_poll_cmpl(ukcq, &cq_poll_info);
+		if (ret == IRDMA_ERR_Q_EMPTY) {
+			break;
+		} else if (ret == IRDMA_ERR_Q_DESTROYED) {
+			*new_cqe = true;
+			continue;
+		} else if (ret) {
+			if (!*cqe_count)
+				*cqe_count = -1;
+			return -EINVAL;
+		}
+		*new_cqe = true;
+		irdma_process_cqe(*entry, &cq_poll_info);
+		(*cqe_count)++;
+		(*entry)++;
+	}
+
+	return 0;
+}
+
+/**
+ * irdma_poll_cq - poll cq for completion (kernel apps)
+ * @ibcq: cq to poll
+ * @num_entries: number of entries to poll
+ * @entry: wr of a completed entry
+ */
+static int irdma_poll_cq(struct ib_cq *ibcq, int num_entries,
+			 struct ib_wc *entry)
+{
+	struct list_head *tmp_node, *list_node;
+	struct irdma_cq_buf *last_buf = NULL;
+	struct irdma_cq_buf *cq_buf;
+	enum irdma_status_code ret;
+	struct irdma_device *iwdev;
+	struct irdma_cq_uk *ukcq;
+	struct irdma_cq *iwcq;
+	bool new_cqe = false;
+	int resized_bufs = 0;
+	unsigned long flags;
+	int cqe_count = 0;
+
+	iwcq = to_iwcq(ibcq);
+	iwdev = to_iwdev(ibcq->device);
+	ukcq = &iwcq->sc_cq.cq_uk;
+
+	spin_lock_irqsave(&iwcq->lock, flags);
+	/* go through the list of previously resized CQ buffers */
+	list_for_each_safe(list_node, tmp_node, &iwcq->resize_list) {
+		bool last_cqe = false;
+
+		cq_buf = container_of(list_node, struct irdma_cq_buf, list);
+		ret = irdma_get_cqes(&cq_buf->cq_uk, num_entries, &cqe_count,
+				     &last_cqe, &entry);
+		if (ret)
+			goto exit;
+
+		/* save the resized CQ buffer which has received the last cqe */
+		if (last_cqe)
+			last_buf = cq_buf;
+	}
+
+	/* check the current CQ buffer for new cqes */
+	ret = irdma_get_cqes(ukcq, num_entries, &cqe_count, &new_cqe, &entry);
+	if (ret)
+		goto exit;
+
+	if (new_cqe)
+		/* all previous CQ resizes are complete */
+		resized_bufs = irdma_process_resize_list(iwcq, iwdev, NULL);
+	else if (last_buf)
+		/* only CQ resizes up to the last_buf are complete */
+		resized_bufs = irdma_process_resize_list(iwcq, iwdev, last_buf);
+	if (resized_bufs)
+		/* report to the HW the number of complete CQ resizes */
+		ukcq->ops.iw_cq_set_resized_cnt(ukcq, resized_bufs);
+
+exit:
+	spin_unlock_irqrestore(&iwcq->lock, flags);
+
+	return cqe_count;
+}
+
+/**
+ * irdma_req_notify_cq - arm cq kernel application
+ * @ibcq: cq to arm
+ * @notify_flags: notofication flags
+ */
+static int irdma_req_notify_cq(struct ib_cq *ibcq,
+			       enum ib_cq_notify_flags notify_flags)
+{
+	struct irdma_cq *iwcq;
+	struct irdma_cq_uk *ukcq;
+	unsigned long flags;
+	enum irdma_cmpl_notify cq_notify = IRDMA_CQ_COMPL_EVENT;
+
+	iwcq = to_iwcq(ibcq);
+	ukcq = &iwcq->sc_cq.cq_uk;
+	if (notify_flags == IB_CQ_SOLICITED)
+		cq_notify = IRDMA_CQ_COMPL_SOLICITED;
+	spin_lock_irqsave(&iwcq->lock, flags);
+	ukcq->ops.iw_cq_request_notification(ukcq, cq_notify);
+	spin_unlock_irqrestore(&iwcq->lock, flags);
+
+	return 0;
+}
+
+/**
+ * irdma_port_immutable - return port's immutable data
+ * @ibdev: ib dev struct
+ * @port_num: port number
+ * @immutable: immutable data for the port return
+ */
+static int irdma_port_immutable(struct ib_device *ibdev, u8 port_num,
+				struct ib_port_immutable *immutable)
+{
+	struct ib_port_attr attr;
+	int err;
+	struct irdma_device *iwdev = to_iwdev(ibdev);
+
+	if (iwdev->roce_mode) {
+		immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
+		immutable->max_mad_size = IB_MGMT_MAD_SIZE;
+	} else {
+		immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
+	}
+	err = ib_query_port(ibdev, port_num, &attr);
+	if (err)
+		return err;
+
+	immutable->pkey_tbl_len = attr.pkey_tbl_len;
+	immutable->gid_tbl_len = attr.gid_tbl_len;
+
+	return 0;
+}
+
+static const char *const irdma_hw_stat_names[] = {
+	/* 32bit names */
+	[IRDMA_HW_STAT_INDEX_RXVLANERR] = "rxVlanErrors",
+	[IRDMA_HW_STAT_INDEX_IP4RXDISCARD] = "ip4InDiscards",
+	[IRDMA_HW_STAT_INDEX_IP4RXTRUNC] = "ip4InTruncatedPkts",
+	[IRDMA_HW_STAT_INDEX_IP4TXNOROUTE] = "ip4OutNoRoutes",
+	[IRDMA_HW_STAT_INDEX_IP6RXDISCARD] = "ip6InDiscards",
+	[IRDMA_HW_STAT_INDEX_IP6RXTRUNC] = "ip6InTruncatedPkts",
+	[IRDMA_HW_STAT_INDEX_IP6TXNOROUTE] = "ip6OutNoRoutes",
+	[IRDMA_HW_STAT_INDEX_TCPRTXSEG] = "tcpRetransSegs",
+	[IRDMA_HW_STAT_INDEX_TCPRXOPTERR] = "tcpInOptErrors",
+	[IRDMA_HW_STAT_INDEX_TCPRXPROTOERR] = "tcpInProtoErrors",
+	[IRDMA_HW_STAT_INDEX_RXRPCNPHANDLED] = "cnpHandled",
+	[IRDMA_HW_STAT_INDEX_RXRPCNPIGNORED] = "cnpIgnored",
+	[IRDMA_HW_STAT_INDEX_TXNPCNPSENT] = "cnpSent",
+
+	/* 64bit names */
+	[IRDMA_HW_STAT_INDEX_IP4RXOCTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip4InOctets",
+	[IRDMA_HW_STAT_INDEX_IP4RXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip4InPkts",
+	[IRDMA_HW_STAT_INDEX_IP4RXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip4InReasmRqd",
+	[IRDMA_HW_STAT_INDEX_IP4RXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip4InMcastOctets",
+	[IRDMA_HW_STAT_INDEX_IP4RXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip4InMcastPkts",
+	[IRDMA_HW_STAT_INDEX_IP4TXOCTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip4OutOctets",
+	[IRDMA_HW_STAT_INDEX_IP4TXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip4OutPkts",
+	[IRDMA_HW_STAT_INDEX_IP4TXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip4OutSegRqd",
+	[IRDMA_HW_STAT_INDEX_IP4TXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip4OutMcastOctets",
+	[IRDMA_HW_STAT_INDEX_IP4TXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip4OutMcastPkts",
+	[IRDMA_HW_STAT_INDEX_IP6RXOCTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip6InOctets",
+	[IRDMA_HW_STAT_INDEX_IP6RXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip6InPkts",
+	[IRDMA_HW_STAT_INDEX_IP6RXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip6InReasmRqd",
+	[IRDMA_HW_STAT_INDEX_IP6RXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip6InMcastOctets",
+	[IRDMA_HW_STAT_INDEX_IP6RXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip6InMcastPkts",
+	[IRDMA_HW_STAT_INDEX_IP6TXOCTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip6OutOctets",
+	[IRDMA_HW_STAT_INDEX_IP6TXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip6OutPkts",
+	[IRDMA_HW_STAT_INDEX_IP6TXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip6OutSegRqd",
+	[IRDMA_HW_STAT_INDEX_IP6TXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip6OutMcastOctets",
+	[IRDMA_HW_STAT_INDEX_IP6TXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"ip6OutMcastPkts",
+	[IRDMA_HW_STAT_INDEX_TCPRXSEGS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"tcpInSegs",
+	[IRDMA_HW_STAT_INDEX_TCPTXSEG + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"tcpOutSegs",
+	[IRDMA_HW_STAT_INDEX_RDMARXRDS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"iwInRdmaReads",
+	[IRDMA_HW_STAT_INDEX_RDMARXSNDS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"iwInRdmaSends",
+	[IRDMA_HW_STAT_INDEX_RDMARXWRS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"iwInRdmaWrites",
+	[IRDMA_HW_STAT_INDEX_RDMATXRDS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"iwOutRdmaReads",
+	[IRDMA_HW_STAT_INDEX_RDMATXSNDS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"iwOutRdmaSends",
+	[IRDMA_HW_STAT_INDEX_RDMATXWRS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"iwOutRdmaWrites",
+	[IRDMA_HW_STAT_INDEX_RDMAVBND + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"iwRdmaBnd",
+	[IRDMA_HW_STAT_INDEX_RDMAVINV + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"iwRdmaInv",
+	[IRDMA_HW_STAT_INDEX_UDPRXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"RxUDP",
+	[IRDMA_HW_STAT_INDEX_UDPTXPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"TxUDP",
+	[IRDMA_HW_STAT_INDEX_RXNPECNMARKEDPKTS + IRDMA_HW_STAT_INDEX_MAX_32] =
+		"RxECNMrkd",
+};
+
+static void irdma_get_dev_fw_str(struct ib_device *dev, char *str)
+{
+	struct irdma_device *iwdev = to_iwdev(dev);
+
+	snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u",
+		 FW_MAJOR_VER(&iwdev->rf->sc_dev),
+		 FW_MINOR_VER(&iwdev->rf->sc_dev));
+}
+
+/**
+ * irdma_alloc_hw_stats - Allocate a hw stats structure
+ * @ibdev: device pointer from stack
+ * @port_num: port number
+ */
+static struct rdma_hw_stats *irdma_alloc_hw_stats(struct ib_device *ibdev,
+						  u8 port_num)
+{
+	struct irdma_device *iwdev = to_iwdev(ibdev);
+	struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
+	int num_counters = IRDMA_HW_STAT_INDEX_MAX_32 +
+			   IRDMA_HW_STAT_INDEX_MAX_64;
+	unsigned long lifespan = RDMA_HW_STATS_DEFAULT_LIFESPAN;
+
+	BUILD_BUG_ON(ARRAY_SIZE(irdma_hw_stat_names) !=
+		     (IRDMA_HW_STAT_INDEX_MAX_32 + IRDMA_HW_STAT_INDEX_MAX_64));
+
+	/*
+	 * PFs get the default update lifespan, but VFs only update once
+	 * per second
+	 */
+	if (!dev->is_pf)
+		lifespan = 1000;
+
+	return rdma_alloc_hw_stats_struct(irdma_hw_stat_names, num_counters,
+					  lifespan);
+}
+
+/**
+ * irdma_get_hw_stats - Populates the rdma_hw_stats structure
+ * @ibdev: device pointer from stack
+ * @stats: stats pointer from stack
+ * @port_num: port number
+ * @index: which hw counter the stack is requesting we update
+ */
+static int irdma_get_hw_stats(struct ib_device *ibdev,
+			      struct rdma_hw_stats *stats, u8 port_num,
+			      int index)
+{
+	struct irdma_device *iwdev = to_iwdev(ibdev);
+	struct irdma_dev_hw_stats *hw_stats = &iwdev->vsi.pestat->hw_stats;
+
+	if (iwdev->rf->rdma_ver > IRDMA_GEN_1)
+		irdma_cqp_gather_stats_cmd(&iwdev->rf->sc_dev, iwdev->vsi.pestat, true);
+
+	memcpy(&stats->value[0], hw_stats, sizeof(*hw_stats));
+
+	return stats->num_counters;
+}
+
+/**
+ * irdma_query_gid - Query port GID
+ * @ibdev: device pointer from stack
+ * @port: port number
+ * @index: Entry index
+ * @gid: Global ID
+ */
+static int irdma_query_gid(struct ib_device *ibdev, u8 port, int index,
+			   union ib_gid *gid)
+{
+	struct irdma_device *iwdev = to_iwdev(ibdev);
+
+	memset(gid->raw, 0, sizeof(gid->raw));
+	ether_addr_copy(gid->raw, iwdev->netdev->dev_addr);
+
+	return 0;
+}
+
+/**
+ * mcast_list_add -  Add a new mcast item to list
+ * @rf: RDMA PCI function
+ * @new_elem: pointer to element to add
+ */
+static void mcast_list_add(struct irdma_pci_f *rf,
+			   struct mc_table_list *new_elem)
+{
+	list_add(&new_elem->list, &rf->mc_qht_list.list);
+}
+
+/**
+ * mcast_list_del - Remove an mcast item from list
+ * @mc_qht_elem: pointer to mcast table list element
+ */
+static void mcast_list_del(struct mc_table_list *mc_qht_elem)
+{
+	if (mc_qht_elem)
+		list_del(&mc_qht_elem->list);
+}
+
+/**
+ * irdma_mcast_list_lookup_ip - Search mcast list for address
+ * @rf: RDMA PCI function
+ * @ip_mcast: pointer to mcast IP address
+ */
+static struct mc_table_list *mcast_list_lookup_ip(struct irdma_pci_f *rf,
+						  u32 *ip_mcast)
+{
+	struct mc_table_list *mc_qht_el;
+	struct list_head *pos, *q;
+
+	list_for_each_safe(pos, q, &rf->mc_qht_list.list) {
+		mc_qht_el = list_entry(pos, struct mc_table_list, list);
+		if (!memcmp(mc_qht_el->mc_info.dest_ip, ip_mcast,
+			    sizeof(mc_qht_el->mc_info.dest_ip)))
+			return mc_qht_el;
+	}
+
+	return NULL;
+}
+
+/**
+ * irdma_mcast_cqp_op - perform a mcast cqp operation
+ * @iwdev: device
+ * @mc_grp_ctx: mcast group info
+ * @op: operation
+ *
+ * returns error status
+ */
+static int irdma_mcast_cqp_op(struct irdma_device *iwdev,
+			      struct irdma_mcast_grp_info *mc_grp_ctx, u8 op)
+{
+	struct cqp_cmds_info *cqp_info;
+	struct irdma_cqp_request *cqp_request;
+	enum irdma_status_code status;
+
+	cqp_request = irdma_get_cqp_request(&iwdev->rf->cqp, true);
+	if (!cqp_request)
+		return -ENOMEM;
+
+	cqp_request->info.in.u.mc_create.info = *mc_grp_ctx;
+	cqp_info = &cqp_request->info;
+	cqp_info->cqp_cmd = op;
+	cqp_info->post_sq = 1;
+	cqp_info->in.u.mc_create.scratch = (uintptr_t)cqp_request;
+	cqp_info->in.u.mc_create.cqp = &iwdev->rf->cqp.sc_cqp;
+	status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
+	if (status) {
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: CQP-OP_%s failed\n",
+			  (op == IRDMA_OP_MC_MODIFY) ? "MODIFY" : "CREATE");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+/**
+ * irdma_mcast_mac - Get the multicast MAC for an IP address
+ * @ip_addr: IPv4 or IPv6 address
+ * @mac: pointer to result MAC address
+ * @ipv4: flag indicating IPv4 or IPv6
+ *
+ */
+void irdma_mcast_mac(u32 *ip_addr, u8 *mac, bool ipv4)
+{
+	u8 *ip = (u8 *)ip_addr;
+
+	if (ipv4) {
+		unsigned char mac4[ETH_ALEN] = {0x01, 0x00, 0x5E, 0x00,
+						0x00, 0x00};
+
+		mac4[3] = ip[2] & 0x7F;
+		mac4[4] = ip[1];
+		mac4[5] = ip[0];
+		ether_addr_copy(mac, mac4);
+	} else {
+		unsigned char mac6[ETH_ALEN] = {0x33, 0x33, 0x00, 0x00,
+						0x00, 0x00};
+
+		mac6[2] = ip[3];
+		mac6[3] = ip[2];
+		mac6[4] = ip[1];
+		mac6[5] = ip[0];
+		ether_addr_copy(mac, mac6);
+	}
+}
+
+/**
+ * irdma_attach_mcast - attach a qp to a multicast group
+ * @ibqp: ptr to qp
+ * @ibgid: pointer to global ID
+ * @lid: local ID
+ *
+ * returns error status
+ */
+static int irdma_attach_mcast(struct ib_qp *ibqp, union ib_gid *ibgid, u16 lid)
+{
+	struct irdma_qp *iwqp = to_iwqp(ibqp);
+	struct irdma_device *iwdev = iwqp->iwdev;
+	struct irdma_pci_f *rf = iwdev->rf;
+	struct mc_table_list *mc_qht_elem;
+	struct irdma_mcast_grp_ctx_entry_info mcg_info = {};
+	unsigned long flags;
+	u32 ip_addr[4] = {};
+	u32 mgn;
+	u32 no_mgs;
+	int ret = 0;
+	bool ipv4;
+	u16 vlan_id;
+	union {
+		struct sockaddr saddr;
+		struct sockaddr_in saddr_in;
+		struct sockaddr_in6 saddr_in6;
+	} sgid_addr;
+	unsigned char dmac[ETH_ALEN];
+
+	rdma_gid2ip(&sgid_addr.saddr, ibgid);
+	if (rdma_gid_attr_network_type(ibqp->av_sgid_attr) ==
+	    RDMA_NETWORK_IPV6) {
+		irdma_copy_ip_ntohl(ip_addr,
+				    sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);
+		irdma_netdev_vlan_ipv6(ip_addr, &vlan_id, NULL);
+		ipv4 = false;
+		dev_info(rfdev_to_dev(&rf->sc_dev),
+			 "qp_id=%d, IP6address=%pI6\n", ibqp->qp_num, ip_addr);
+		irdma_mcast_mac(ip_addr, dmac, false);
+	} else {
+		ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr);
+		ipv4 = true;
+		vlan_id = irdma_get_vlan_ipv4(ip_addr);
+		irdma_mcast_mac(ip_addr, dmac, true);
+		dev_info(rfdev_to_dev(&rf->sc_dev),
+			 "qp_id=%d, IP4address=%pI4, MAC=%pM\n", ibqp->qp_num,
+			 ip_addr, dmac);
+	}
+
+	spin_lock_irqsave(&rf->qh_list_lock, flags);
+	mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr);
+	if (!mc_qht_elem) {
+		struct irdma_dma_mem *dma_mem_mc;
+
+		spin_unlock_irqrestore(&rf->qh_list_lock, flags);
+		mc_qht_elem = kzalloc(sizeof(*mc_qht_elem), GFP_KERNEL);
+		if (!mc_qht_elem)
+			return -ENOMEM;
+
+		mc_qht_elem->mc_info.ipv4_valid = ipv4;
+		memcpy(mc_qht_elem->mc_info.dest_ip, ip_addr,
+		       sizeof(mc_qht_elem->mc_info.dest_ip));
+		ret = irdma_alloc_rsrc(rf, rf->allocated_mcgs, rf->max_mcg,
+				       &mgn, &rf->next_mcg);
+		if (ret) {
+			kfree(mc_qht_elem);
+			return -ENOMEM;
+		}
+
+		mc_qht_elem->mc_info.mgn = mgn;
+		dma_mem_mc = &mc_qht_elem->mc_grp_ctx.dma_mem_mc;
+		dma_mem_mc->size = ALIGN(sizeof(u64) * IRDMA_MAX_MGS_PER_CTX,
+					 IRDMA_HW_PAGE_SIZE);
+		dma_mem_mc->va = dma_alloc_coherent(hw_to_dev(&rf->hw),
+						    dma_mem_mc->size,
+						    &dma_mem_mc->pa,
+						    GFP_KERNEL);
+		if (!dma_mem_mc->va) {
+			irdma_free_rsrc(rf, rf->allocated_mcgs, mgn);
+			kfree(mc_qht_elem);
+			return -ENOMEM;
+		}
+
+		mc_qht_elem->mc_grp_ctx.mg_id = (u16)mgn;
+		memcpy(mc_qht_elem->mc_grp_ctx.dest_ip_addr, ip_addr,
+		       sizeof(mc_qht_elem->mc_grp_ctx.dest_ip_addr));
+		mc_qht_elem->mc_grp_ctx.ipv4_valid = ipv4;
+		mc_qht_elem->mc_grp_ctx.vlan_id = vlan_id;
+		if (vlan_id < VLAN_N_VID)
+			mc_qht_elem->mc_grp_ctx.vlan_valid = true;
+		mc_qht_elem->mc_grp_ctx.hmc_fcn_id = iwdev->vsi.fcn_id;
+		ether_addr_copy(mc_qht_elem->mc_grp_ctx.dest_mac_addr, dmac);
+
+		spin_lock_irqsave(&rf->qh_list_lock, flags);
+		mcast_list_add(rf, mc_qht_elem);
+	} else {
+		if (mc_qht_elem->mc_grp_ctx.no_of_mgs ==
+		    IRDMA_MAX_MGS_PER_CTX) {
+			spin_unlock_irqrestore(&rf->qh_list_lock, flags);
+			return -ENOMEM;
+		}
+	}
+
+	mcg_info.qp_id = iwqp->ibqp.qp_num;
+	no_mgs = mc_qht_elem->mc_grp_ctx.no_of_mgs;
+	rf->sc_dev.iw_uda_ops->mcast_grp_add(&mc_qht_elem->mc_grp_ctx,
+					     &mcg_info);
+	spin_unlock_irqrestore(&rf->qh_list_lock, flags);
+
+	/* Only if there is a change do we need to modify or create */
+	if (!no_mgs) {
+		ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,
+					 IRDMA_OP_MC_CREATE);
+	} else if (no_mgs != mc_qht_elem->mc_grp_ctx.no_of_mgs) {
+		ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,
+					 IRDMA_OP_MC_MODIFY);
+	} else {
+		return 0;
+	}
+
+	if (ret)
+		goto error;
+
+	return 0;
+
+error:
+	rf->sc_dev.iw_uda_ops->mcast_grp_del(&mc_qht_elem->mc_grp_ctx,
+					     &mcg_info);
+	if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) {
+		mcast_list_del(mc_qht_elem);
+		dma_free_coherent(hw_to_dev(&rf->hw),
+				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.size,
+				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.va,
+				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.pa);
+		mc_qht_elem->mc_grp_ctx.dma_mem_mc.va = NULL;
+		irdma_free_rsrc(rf, rf->allocated_mcgs,
+				mc_qht_elem->mc_grp_ctx.mg_id);
+		kfree(mc_qht_elem);
+	}
+
+	return ret;
+}
+
+/**
+ * irdma_detach_mcast - detach a qp from a multicast group
+ * @ibqp: ptr to qp
+ * @ibgid: pointer to global ID
+ * @lid: local ID
+ *
+ * returns error status
+ */
+static int irdma_detach_mcast(struct ib_qp *ibqp, union ib_gid *ibgid, u16 lid)
+{
+	struct irdma_qp *iwqp = to_iwqp(ibqp);
+	struct irdma_device *iwdev = iwqp->iwdev;
+	struct irdma_pci_f *rf = iwdev->rf;
+	u32 ip_addr[4] = {};
+	struct mc_table_list *mc_qht_elem;
+	struct irdma_mcast_grp_ctx_entry_info mcg_info = {};
+	int ret;
+	unsigned long flags;
+	union {
+		struct sockaddr saddr;
+		struct sockaddr_in saddr_in;
+		struct sockaddr_in6 saddr_in6;
+	} sgid_addr;
+
+	rdma_gid2ip(&sgid_addr.saddr, ibgid);
+	if (rdma_gid_attr_network_type(ibqp->av_sgid_attr) ==
+	    RDMA_NETWORK_IPV6) {
+		irdma_copy_ip_ntohl(ip_addr,
+				    sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);
+		dev_info(rfdev_to_dev(&rf->sc_dev),
+			 "qp_id=%d, IP6address=%pI6\n", ibqp->qp_num, ip_addr);
+	} else {
+		ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr);
+		dev_info(rfdev_to_dev(&rf->sc_dev),
+			 "qp_id=%d, IP4address=%pI4\n", ibqp->qp_num, ip_addr);
+	}
+
+	spin_lock_irqsave(&rf->qh_list_lock, flags);
+	mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr);
+	if (!mc_qht_elem) {
+		spin_unlock_irqrestore(&rf->qh_list_lock, flags);
+		pr_info("address not found MCG\n");
+		return 0; /* OK to remove group already removed */
+	}
+
+	mcg_info.qp_id = iwqp->ibqp.qp_num;
+	rf->sc_dev.iw_uda_ops->mcast_grp_del(&mc_qht_elem->mc_grp_ctx,
+					     &mcg_info);
+	if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) {
+		mcast_list_del(mc_qht_elem);
+		spin_unlock_irqrestore(&rf->qh_list_lock, flags);
+		ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,
+					 IRDMA_OP_MC_DESTROY);
+		if (ret) {
+			ibdev_dbg(to_ibdev(iwdev),
+				  "VERBS: failed MC_DESTROY MCG\n");
+			spin_lock_irqsave(&rf->qh_list_lock, flags);
+			mcast_list_add(rf, mc_qht_elem);
+			spin_unlock_irqrestore(&rf->qh_list_lock, flags);
+			return -EAGAIN;
+		}
+
+		dma_free_coherent(hw_to_dev(&rf->hw),
+				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.size,
+				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.va,
+				  mc_qht_elem->mc_grp_ctx.dma_mem_mc.pa);
+		mc_qht_elem->mc_grp_ctx.dma_mem_mc.va = NULL;
+		irdma_free_rsrc(rf, rf->allocated_mcgs,
+				mc_qht_elem->mc_grp_ctx.mg_id);
+		kfree(mc_qht_elem);
+	} else {
+		spin_unlock_irqrestore(&rf->qh_list_lock, flags);
+		ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,
+					 IRDMA_OP_MC_MODIFY);
+		if (ret) {
+			ibdev_dbg(to_ibdev(iwdev),
+				  "VERBS: failed Modify MCG\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * irdma_create_ah - create address handle
+ * @ib_ah: address handle
+ * @attr: address handle attributes
+ * @flags: flags for sleepable
+ * @udata: User data
+ *
+ * returns a pointer to an address handle
+ */
+static int irdma_create_ah(struct ib_ah *ib_ah,
+			   struct rdma_ah_attr *attr, u32 flags,
+			   struct ib_udata *udata)
+{
+	struct irdma_pd *pd = to_iwpd(ib_ah->pd);
+	struct irdma_ah *ah = container_of(ib_ah, struct irdma_ah, ibah);
+	const struct ib_gid_attr *sgid_attr;
+	struct irdma_device *iwdev = to_iwdev(ib_ah->pd->device);
+	struct irdma_pci_f *rf = iwdev->rf;
+	struct irdma_sc_ah *sc_ah;
+	u32 ah_id = 0;
+	struct irdma_ah_info *ah_info;
+	struct irdma_create_ah_resp uresp;
+	union {
+		struct sockaddr saddr;
+		struct sockaddr_in saddr_in;
+		struct sockaddr_in6 saddr_in6;
+	} sgid_addr, dgid_addr;
+	int err;
+	u8 dmac[ETH_ALEN];
+
+	err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah, &ah_id,
+			       &rf->next_ah);
+	if (err)
+		return err;
+
+	ah->pd = pd;
+	sc_ah = &ah->sc_ah;
+	sc_ah->ah_info.ah_idx = ah_id;
+	sc_ah->ah_info.vsi = &iwdev->vsi;
+	iwdev->rf->sc_dev.iw_uda_ops->init_ah(&rf->sc_dev, sc_ah);
+	ah->sgid_index = attr->grh.sgid_index;
+	sgid_attr = attr->grh.sgid_attr;
+	memcpy(&ah->dgid, &attr->grh.dgid, sizeof(ah->dgid));
+	rdma_gid2ip(&sgid_addr.saddr, &sgid_attr->gid);
+	rdma_gid2ip(&dgid_addr.saddr, &attr->grh.dgid);
+	ah->av.attrs = *attr;
+	ah->av.net_type = rdma_gid_attr_network_type(sgid_attr);
+	ah->av.sgid_addr.saddr = sgid_addr.saddr;
+	ah->av.dgid_addr.saddr = dgid_addr.saddr;
+	ah_info = &sc_ah->ah_info;
+	ah_info->ah = sc_ah;
+	ah_info->ah_idx = ah_id;
+	ah_info->pd_idx = pd->sc_pd.pd_id;
+	if (attr->ah_flags & IB_AH_GRH) {
+		ah_info->flow_label = attr->grh.flow_label;
+		ah_info->hop_ttl = attr->grh.hop_limit;
+		ah_info->tc_tos = attr->grh.traffic_class;
+	}
+
+	ether_addr_copy(dmac, attr->roce.dmac);
+	if (rdma_gid_attr_network_type(sgid_attr) == RDMA_NETWORK_IPV4) {
+		ah_info->ipv4_valid = true;
+		ah_info->dest_ip_addr[0] =
+			ntohl(dgid_addr.saddr_in.sin_addr.s_addr);
+		ah_info->src_ip_addr[0] =
+			ntohl(sgid_addr.saddr_in.sin_addr.s_addr);
+		ah_info->do_lpbk = irdma_ipv4_is_lpb(ah_info->src_ip_addr[0],
+						     ah_info->dest_ip_addr[0]);
+		if (ipv4_is_multicast(dgid_addr.saddr_in.sin_addr.s_addr))
+			irdma_mcast_mac(ah_info->dest_ip_addr, dmac, true);
+	} else {
+		irdma_copy_ip_ntohl(ah_info->dest_ip_addr,
+				    dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);
+		irdma_copy_ip_ntohl(ah_info->src_ip_addr,
+				    sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);
+		ah_info->do_lpbk = irdma_ipv6_is_lpb(ah_info->src_ip_addr,
+						     ah_info->dest_ip_addr);
+		if (rdma_is_multicast_addr(&dgid_addr.saddr_in6.sin6_addr))
+			irdma_mcast_mac(ah_info->dest_ip_addr, dmac, false);
+	}
+
+	err = rdma_read_gid_l2_fields(sgid_attr, &ah_info->vlan_tag,
+				      ah_info->mac_addr);
+	if (err)
+		goto error;
+
+	ah_info->dst_arpindex = irdma_add_arp(iwdev->rf, ah_info->dest_ip_addr,
+					      ah_info->ipv4_valid, dmac);
+
+	if (ah_info->dst_arpindex == -1) {
+		err = -EINVAL;
+		goto error;
+	}
+
+	if (ah_info->vlan_tag >= VLAN_N_VID && iwdev->dcb)
+		ah_info->vlan_tag = 0;
+
+	if (ah_info->vlan_tag < VLAN_N_VID) {
+		ah_info->insert_vlan_tag = true;
+		ah_info->vlan_tag |=
+			rt_tos2priority(ah_info->tc_tos) << VLAN_PRIO_SHIFT;
+	}
+
+	err = irdma_ah_cqp_op(iwdev->rf, sc_ah, IRDMA_OP_AH_CREATE,
+			      flags & RDMA_CREATE_AH_SLEEPABLE,
+			      irdma_gsi_ud_qp_ah_cb, sc_ah);
+	if (err) {
+		ibdev_dbg(to_ibdev(iwdev), "VERBS: CQP-OP Create AH fail");
+		goto error;
+	}
+
+	if (!(flags & RDMA_CREATE_AH_SLEEPABLE)) {
+		int cnt = CQP_COMPL_WAIT_TIME_MS * CQP_TIMEOUT_THRESHOLD;
+
+		do {
+			irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);
+			mdelay(1);
+		} while (!sc_ah->ah_info.ah_valid && --cnt);
+
+		if (!cnt) {
+			ibdev_dbg(to_ibdev(iwdev),
+				  "VERBS: CQP create AH timed out");
+			err = -ETIMEDOUT;
+			goto error;
+		}
+	}
+
+	if (udata) {
+		uresp.ah_id = ah->sc_ah.ah_info.ah_idx;
+		err = ib_copy_to_udata(udata, &uresp,
+				       min(sizeof(uresp), udata->outlen));
+	}
+	return 0;
+
+error:
+	irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, ah_id);
+
+	return err;
+}
+
+/**
+ * irdma_destroy_ah - Destroy address handle
+ * @ibah: pointer to address handle
+ * @flags: flags for sleepable
+ */
+static void irdma_destroy_ah(struct ib_ah *ibah, u32 flags)
+{
+	struct irdma_device *iwdev = to_iwdev(ibah->device);
+	struct irdma_ah *ah = to_iwah(ibah);
+
+	irdma_ah_cqp_op(iwdev->rf, &ah->sc_ah, IRDMA_OP_AH_DESTROY,
+			false, NULL, ah);
+
+	irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs,
+			ah->sc_ah.ah_info.ah_idx);
+}
+
+/**
+ * irdma_query_ah - Query address handle
+ * @ibah: pointer to address handle
+ * @ah_attr: address handle attributes
+ */
+static int irdma_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr)
+{
+	struct irdma_ah *ah = to_iwah(ibah);
+
+	memset(ah_attr, 0, sizeof(*ah_attr));
+	if (ah->av.attrs.ah_flags & IB_AH_GRH) {
+		ah_attr->ah_flags = IB_AH_GRH;
+		ah_attr->grh.flow_label = ah->sc_ah.ah_info.flow_label;
+		ah_attr->grh.traffic_class = ah->sc_ah.ah_info.tc_tos;
+		ah_attr->grh.hop_limit = ah->sc_ah.ah_info.hop_ttl;
+		ah_attr->grh.sgid_index = ah->sgid_index;
+		ah_attr->grh.sgid_index = ah->sgid_index;
+		memcpy(&ah_attr->grh.dgid, &ah->dgid,
+		       sizeof(ah_attr->grh.dgid));
+	}
+
+	return 0;
+}
+
+static enum rdma_link_layer irdma_get_link_layer(struct ib_device *ibdev,
+						 u8 port_num)
+{
+	return IB_LINK_LAYER_ETHERNET;
+}
+
+static __be64 irdma_mac_to_guid(struct net_device *ndev)
+{
+	unsigned char *mac = ndev->dev_addr;
+	__be64 guid;
+	unsigned char *dst = (unsigned char *)&guid;
+
+	dst[0] = mac[0] ^ 2;
+	dst[1] = mac[1];
+	dst[2] = mac[2];
+	dst[3] = 0xff;
+	dst[4] = 0xfe;
+	dst[5] = mac[3];
+	dst[6] = mac[4];
+	dst[7] = mac[5];
+
+	return guid;
+}
+
+static const struct ib_device_ops irdma_roce_dev_ops = {
+	.attach_mcast = irdma_attach_mcast,
+	.detach_mcast = irdma_detach_mcast,
+	.get_link_layer = irdma_get_link_layer,
+	.modify_qp = irdma_modify_qp_roce,
+	.query_ah = irdma_query_ah,
+};
+
+static const struct ib_device_ops irdma_iw_dev_ops = {
+	.modify_qp = irdma_modify_qp,
+	.query_gid = irdma_query_gid,
+};
+
+static const struct ib_device_ops irdma_dev_ops = {
+	.owner = THIS_MODULE,
+	.driver_id = RDMA_DRIVER_IRDMA,
+	.uverbs_abi_ver = IRDMA_ABI_VER,
+
+	.alloc_hw_stats = irdma_alloc_hw_stats,
+	.alloc_mr = irdma_alloc_mr,
+	.alloc_mw = irdma_alloc_mw,
+	.alloc_pd = irdma_alloc_pd,
+	.alloc_ucontext = irdma_alloc_ucontext,
+	.create_ah = irdma_create_ah,
+	.create_cq = irdma_create_cq,
+	.create_qp = irdma_create_qp,
+	.dealloc_mw = irdma_dealloc_mw,
+	.dealloc_pd = irdma_dealloc_pd,
+	.dealloc_ucontext = irdma_dealloc_ucontext,
+	.dereg_mr = irdma_dereg_mr,
+	.destroy_ah = irdma_destroy_ah,
+	.destroy_cq = irdma_destroy_cq,
+	.destroy_qp = irdma_destroy_qp,
+	.disassociate_ucontext = irdma_disassociate_ucontext,
+	.drain_rq = irdma_drain_rq,
+	.drain_sq = irdma_drain_sq,
+	.get_dev_fw_str = irdma_get_dev_fw_str,
+	.get_dma_mr = irdma_get_dma_mr,
+	.get_hw_stats = irdma_get_hw_stats,
+	.get_port_immutable = irdma_port_immutable,
+	.map_mr_sg = irdma_map_mr_sg,
+	.mmap = irdma_mmap,
+	.poll_cq = irdma_poll_cq,
+	.post_recv = irdma_post_recv,
+	.post_send = irdma_post_send,
+	.query_device = irdma_query_device,
+	.query_pkey = irdma_query_pkey,
+	.query_port = irdma_query_port,
+	.query_qp = irdma_query_qp,
+	.reg_user_mr = irdma_reg_user_mr,
+	.req_notify_cq = irdma_req_notify_cq,
+	.resize_cq = irdma_resize_cq,
+	INIT_RDMA_OBJ_SIZE(ib_pd, irdma_pd, ibpd),
+	INIT_RDMA_OBJ_SIZE(ib_ucontext, irdma_ucontext, ibucontext),
+	INIT_RDMA_OBJ_SIZE(ib_ah, irdma_ah, ibah),
+	INIT_RDMA_OBJ_SIZE(ib_cq, irdma_cq, ibcq),
+};
+
+/**
+ * irdma_init_roce_device - initialization of roce rdma device
+ * @iwibdev: irdma ib device
+ */
+static void irdma_init_roce_device(struct irdma_ib_device *iwibdev)
+{
+	iwibdev->ibdev.uverbs_cmd_mask |=
+		(1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
+		(1ull << IB_USER_VERBS_CMD_DETACH_MCAST);
+
+	iwibdev->ibdev.node_type = RDMA_NODE_IB_CA;
+	iwibdev->ibdev.node_guid = irdma_mac_to_guid(iwibdev->iwdev->netdev);
+	ib_set_device_ops(&iwibdev->ibdev, &irdma_roce_dev_ops);
+}
+
+/**
+ * irdma_init_roce_device - initialization of iwarp rdma device
+ * @iwibdev: irdma ib device
+ */
+static int irdma_init_iw_device(struct irdma_ib_device *iwibdev)
+{
+	struct net_device *netdev = iwibdev->iwdev->netdev;
+
+	iwibdev->ibdev.node_type = RDMA_NODE_RNIC;
+	ether_addr_copy((u8 *)&iwibdev->ibdev.node_guid, netdev->dev_addr);
+	iwibdev->ibdev.ops.iw_add_ref = irdma_add_ref;
+	iwibdev->ibdev.ops.iw_rem_ref = irdma_rem_ref;
+	iwibdev->ibdev.ops.iw_get_qp = irdma_get_qp;
+	iwibdev->ibdev.ops.iw_connect = irdma_connect;
+	iwibdev->ibdev.ops.iw_accept = irdma_accept;
+	iwibdev->ibdev.ops.iw_reject = irdma_reject;
+	iwibdev->ibdev.ops.iw_create_listen = irdma_create_listen;
+	iwibdev->ibdev.ops.iw_destroy_listen = irdma_destroy_listen;
+	memcpy(iwibdev->ibdev.iw_ifname, netdev->name,
+	       sizeof(iwibdev->ibdev.iw_ifname));
+	ib_set_device_ops(&iwibdev->ibdev, &irdma_iw_dev_ops);
+
+	return 0;
+}
+
+/**
+ * irdma_init_rdma_device - initialization of rdma device
+ * @iwdev: irdma device
+ */
+static int irdma_init_rdma_device(struct irdma_device *iwdev)
+{
+	struct irdma_ib_device *iwibdev;
+	struct pci_dev *pcidev = iwdev->rf->hw.pdev;
+	int ret;
+
+	iwibdev = ib_alloc_device(irdma_ib_device, ibdev);
+	if (!iwibdev)
+		return -ENOMEM;
+
+	iwdev->iwibdev = iwibdev;
+	iwibdev->iwdev = iwdev;
+
+	iwibdev->ibdev.uverbs_cmd_mask =
+		(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
+		(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
+		(1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
+		(1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
+		(1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
+		(1ull << IB_USER_VERBS_CMD_REG_MR) |
+		(1ull << IB_USER_VERBS_CMD_DEREG_MR) |
+		(1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
+		(1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
+		(1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
+		(1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
+		(1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
+		(1ull << IB_USER_VERBS_CMD_CREATE_QP) |
+		(1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
+		(1ull << IB_USER_VERBS_CMD_QUERY_QP) |
+		(1ull << IB_USER_VERBS_CMD_POLL_CQ) |
+		(1ull << IB_USER_VERBS_CMD_CREATE_AH) |
+		(1ull << IB_USER_VERBS_CMD_DESTROY_AH) |
+		(1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
+		(1ull << IB_USER_VERBS_CMD_ALLOC_MW) |
+		(1ull << IB_USER_VERBS_CMD_BIND_MW) |
+		(1ull << IB_USER_VERBS_CMD_DEALLOC_MW) |
+		(1ull << IB_USER_VERBS_CMD_POST_RECV) |
+		(1ull << IB_USER_VERBS_CMD_POST_SEND);
+	iwibdev->ibdev.uverbs_ex_cmd_mask =
+		(1ull << IB_USER_VERBS_EX_CMD_MODIFY_QP);
+
+	if (iwdev->roce_mode) {
+		irdma_init_roce_device(iwibdev);
+	} else {
+		ret = irdma_init_iw_device(iwibdev);
+		if (ret) {
+			ib_dealloc_device(&iwibdev->ibdev);
+			return ret;
+		}
+	}
+	iwibdev->ibdev.phys_port_cnt = 1;
+	iwibdev->ibdev.num_comp_vectors = iwdev->rf->ceqs_count;
+	iwibdev->ibdev.dev.parent = &pcidev->dev;
+	ib_set_device_ops(&iwibdev->ibdev, &irdma_dev_ops);
+
+	return 0;
+}
+
+/**
+ * irdma_port_ibevent - indicate port event
+ * @iwdev: iwarp device
+ */
+void irdma_port_ibevent(struct irdma_device *iwdev)
+{
+	struct irdma_ib_device *iwibdev = iwdev->iwibdev;
+	struct ib_event event;
+
+	event.device = &iwibdev->ibdev;
+	event.element.port_num = 1;
+	event.event =
+		iwdev->iw_status ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
+	ib_dispatch_event(&event);
+}
+
+/**
+ * irdma_destroy_rdma_device - destroy rdma device and free resources
+ * @iwibdev: IB device ptr
+ */
+void irdma_destroy_rdma_device(struct irdma_ib_device *iwibdev)
+{
+	ib_unregister_device(&iwibdev->ibdev);
+	ib_dealloc_device(&iwibdev->ibdev);
+}
+
+/**
+ * irdma_register_rdma_device - register iwarp device to IB
+ * @iwdev: iwarp device
+ */
+int irdma_register_rdma_device(struct irdma_device *iwdev)
+{
+	int ret;
+	struct irdma_ib_device *iwibdev;
+
+	ret = irdma_init_rdma_device(iwdev);
+	if (ret)
+		return ret;
+
+	iwibdev = iwdev->iwibdev;
+	rdma_set_device_sysfs_group(&iwibdev->ibdev, &irdma_attr_group);
+	ret = ib_device_set_netdev(&iwibdev->ibdev, iwdev->netdev, 1);
+	if (ret)
+		goto error;
+	ret = ib_register_device(&iwibdev->ibdev, "irdma%d");
+	if (ret)
+		goto error;
+
+	return 0;
+
+error:
+	ib_dealloc_device(&iwdev->iwibdev->ibdev);
+	if (ret)
+		dev_dbg(rfdev_to_dev(&iwdev->rf->sc_dev),
+			"VERBS: Register RDMA device fail\n");
+
+	return ret;
+}
diff --git a/drivers/infiniband/hw/irdma/verbs.h b/drivers/infiniband/hw/irdma/verbs.h
new file mode 100644
index 000000000000..8e8f4a72e19b
--- /dev/null
+++ b/drivers/infiniband/hw/irdma/verbs.h
@@ -0,0 +1,199 @@
+/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */
+/* Copyright (c) 2019, Intel Corporation. */
+
+#ifndef IRDMA_VERBS_H
+#define IRDMA_VERBS_H
+
+#define IRDMA_MAX_SAVED_PHY_PGADDR	4
+
+#define IRDMA_PKEY_TBL_SZ		1
+#define IRDMA_DEFAULT_PKEY		0xFFFF
+
+struct irdma_ucontext {
+	struct ib_ucontext ibucontext;
+	struct irdma_device *iwdev;
+	struct list_head cq_reg_mem_list;
+	spinlock_t cq_reg_mem_list_lock; /* protect CQ memory list */
+	struct list_head qp_reg_mem_list;
+	spinlock_t qp_reg_mem_list_lock; /* protect QP memory list */
+	int abi_ver;
+};
+
+struct irdma_pd {
+	struct ib_pd ibpd;
+	struct irdma_sc_pd sc_pd;
+};
+
+struct irdma_av {
+	u8 macaddr[16];
+	struct rdma_ah_attr attrs;
+	union {
+		struct sockaddr saddr;
+		struct sockaddr_in saddr_in;
+		struct sockaddr_in6 saddr_in6;
+	} sgid_addr, dgid_addr;
+	u8 net_type;
+};
+
+struct irdma_ah {
+	struct ib_ah ibah;
+	struct irdma_sc_ah sc_ah;
+	struct irdma_pd *pd;
+	struct irdma_av av;
+	u8 sgid_index;
+	union ib_gid dgid;
+};
+
+struct irdma_hmc_pble {
+	union {
+		u32 idx;
+		dma_addr_t addr;
+	};
+};
+
+struct irdma_cq_mr {
+	struct irdma_hmc_pble cq_pbl;
+	dma_addr_t shadow;
+	bool split;
+};
+
+struct irdma_qp_mr {
+	struct irdma_hmc_pble sq_pbl;
+	struct irdma_hmc_pble rq_pbl;
+	dma_addr_t shadow;
+	struct page *sq_page;
+};
+
+struct irdma_cq_buf {
+	struct irdma_dma_mem kmem_buf;
+	struct irdma_cq_uk cq_uk;
+	struct irdma_hw *hw;
+	struct list_head list;
+	struct work_struct work;
+};
+
+struct irdma_pbl {
+	struct list_head list;
+	union {
+		struct irdma_qp_mr qp_mr;
+		struct irdma_cq_mr cq_mr;
+	};
+
+	bool pbl_allocated;
+	bool on_list;
+	u64 user_base;
+	struct irdma_pble_alloc pble_alloc;
+	struct irdma_mr *iwmr;
+};
+
+struct irdma_mr {
+	union {
+		struct ib_mr ibmr;
+		struct ib_mw ibmw;
+		struct ib_fmr ibfmr;
+	};
+	struct ib_umem *region;
+	u16 type;
+	u32 page_cnt;
+	u64 page_size;
+	u32 npages;
+	u32 stag;
+	u64 len;
+	u64 pgaddrmem[IRDMA_MAX_SAVED_PHY_PGADDR];
+	struct irdma_pbl iwpbl;
+};
+
+struct irdma_cq {
+	struct ib_cq ibcq;
+	struct irdma_sc_cq sc_cq;
+	u16 cq_head;
+	u16 cq_size;
+	u16 cq_num;
+	bool user_mode;
+	u32 polled_cmpls;
+	u32 cq_mem_size;
+	struct irdma_dma_mem kmem;
+	struct irdma_dma_mem kmem_shadow;
+	spinlock_t lock; /* for poll cq */
+	struct irdma_pbl *iwpbl;
+	struct irdma_pbl *iwpbl_shadow;
+	struct list_head resize_list;
+};
+
+struct disconn_work {
+	struct work_struct work;
+	struct irdma_qp *iwqp;
+};
+
+struct iw_cm_id;
+
+struct irdma_qp_kmode {
+	struct irdma_dma_mem dma_mem;
+	u64 *wrid_mem;
+};
+
+struct irdma_qp {
+	struct ib_qp ibqp;
+	struct irdma_sc_qp sc_qp;
+	struct irdma_device *iwdev;
+	struct irdma_cq *iwscq;
+	struct irdma_cq *iwrcq;
+	struct irdma_pd *iwpd;
+	struct irdma_qp_host_ctx_info ctx_info;
+	union {
+		struct irdma_iwarp_offload_info iwarp_info;
+		struct irdma_roce_offload_info roce_info;
+	};
+
+	union {
+		struct irdma_tcp_offload_info tcp_info;
+		struct irdma_udp_offload_info udp_info;
+	};
+
+	struct irdma_ah roce_ah;
+	struct list_head teardown_entry;
+	atomic_t refcount;
+	struct iw_cm_id *cm_id;
+	void *cm_node;
+	struct ib_mr *lsmm_mr;
+	struct work_struct work;
+	atomic_t hw_mod_qp_pend;
+	enum ib_qp_state ibqp_state;
+	u32 qp_mem_size;
+	u32 last_aeq;
+	int max_send_wr;
+	int max_recv_wr;
+	atomic_t close_timer_started;
+	spinlock_t lock; /* serialize posting WRs to SQ/RQ */
+	struct irdma_qp_context *iwqp_context;
+	void *pbl_vbase;
+	dma_addr_t pbl_pbase;
+	struct page *page;
+	u8 active_conn : 1;
+	u8 user_mode : 1;
+	u8 hte_added : 1;
+	u8 flush_issued : 1;
+	u8 destroyed : 1;
+	u8 sig_all : 1;
+	u8 pau_mode : 1;
+	u8 rsvd : 1;
+	u8 iwarp_state;
+	u16 term_sq_flush_code;
+	u16 term_rq_flush_code;
+	u8 hw_iwarp_state;
+	u8 hw_tcp_state;
+	struct irdma_qp_kmode kqp;
+	struct irdma_dma_mem host_ctx;
+	struct timer_list terminate_timer;
+	struct irdma_pbl *iwpbl;
+	struct irdma_dma_mem q2_ctx_mem;
+	struct irdma_dma_mem ietf_mem;
+	struct completion sq_drained;
+	struct completion rq_drained;
+	wait_queue_head_t waitq;
+	wait_queue_head_t mod_qp_waitq;
+	u8 rts_ae_rcvd;
+};
+
+void irdma_mcast_mac(u32 *ip_addr, u8 *mac, bool ipv4);
+#endif /* IRDMA_VERBS_H */
diff --git a/include/uapi/rdma/rdma_user_ioctl_cmds.h b/include/uapi/rdma/rdma_user_ioctl_cmds.h
index b8bb285f6b2a..cf6317ad05c4 100644
--- a/include/uapi/rdma/rdma_user_ioctl_cmds.h
+++ b/include/uapi/rdma/rdma_user_ioctl_cmds.h
@@ -95,6 +95,7 @@ enum rdma_driver_id {
 	RDMA_DRIVER_OCRDMA,
 	RDMA_DRIVER_NES,
 	RDMA_DRIVER_I40IW,
+	RDMA_DRIVER_IRDMA = RDMA_DRIVER_I40IW,
 	RDMA_DRIVER_VMW_PVRDMA,
 	RDMA_DRIVER_QEDR,
 	RDMA_DRIVER_HNS,
-- 
2.21.0