RDMA/bnxt_re: Add bnxt_re RoCE driver

This patch introduces the RoCE driver for the Broadcom
NetXtreme-E 10/25/40/50G RoCE HCAs.

The RoCE driver is a two part driver that relies on the parent
bnxt_en NIC driver to operate.  The changes needed in the bnxt_en
driver have already been incorporated via Dave Miller's net tree
into the mainline kernel.

The vendor official git repository for this driver is available
on github as:
https://github.com/Broadcom/linux-rdma-nxt/

Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 2167 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
new file mode 100644
index 000000000000..43d08b5e9085
--- /dev/null
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
@@ -0,0 +1,2167 @@
+/*
+ * Broadcom NetXtreme-E RoCE driver.
+ *
+ * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
+ * Broadcom refers to Broadcom Limited and/or its subsidiaries.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Description: Fast Path Operators
+ */
+
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/prefetch.h>
+
+#include "roce_hsi.h"
+
+#include "qplib_res.h"
+#include "qplib_rcfw.h"
+#include "qplib_sp.h"
+#include "qplib_fp.h"
+
+static void bnxt_qplib_arm_cq_enable(struct bnxt_qplib_cq *cq);
+
+static void bnxt_qplib_free_qp_hdr_buf(struct bnxt_qplib_res *res,
+				       struct bnxt_qplib_qp *qp)
+{
+	struct bnxt_qplib_q *rq = &qp->rq;
+	struct bnxt_qplib_q *sq = &qp->sq;
+
+	if (qp->rq_hdr_buf)
+		dma_free_coherent(&res->pdev->dev,
+				  rq->hwq.max_elements * qp->rq_hdr_buf_size,
+				  qp->rq_hdr_buf, qp->rq_hdr_buf_map);
+	if (qp->sq_hdr_buf)
+		dma_free_coherent(&res->pdev->dev,
+				  sq->hwq.max_elements * qp->sq_hdr_buf_size,
+				  qp->sq_hdr_buf, qp->sq_hdr_buf_map);
+	qp->rq_hdr_buf = NULL;
+	qp->sq_hdr_buf = NULL;
+	qp->rq_hdr_buf_map = 0;
+	qp->sq_hdr_buf_map = 0;
+	qp->sq_hdr_buf_size = 0;
+	qp->rq_hdr_buf_size = 0;
+}
+
+static int bnxt_qplib_alloc_qp_hdr_buf(struct bnxt_qplib_res *res,
+				       struct bnxt_qplib_qp *qp)
+{
+	struct bnxt_qplib_q *rq = &qp->rq;
+	struct bnxt_qplib_q *sq = &qp->rq;
+	int rc = 0;
+
+	if (qp->sq_hdr_buf_size && sq->hwq.max_elements) {
+		qp->sq_hdr_buf = dma_alloc_coherent(&res->pdev->dev,
+					sq->hwq.max_elements *
+					qp->sq_hdr_buf_size,
+					&qp->sq_hdr_buf_map, GFP_KERNEL);
+		if (!qp->sq_hdr_buf) {
+			rc = -ENOMEM;
+			dev_err(&res->pdev->dev,
+				"QPLIB: Failed to create sq_hdr_buf");
+			goto fail;
+		}
+	}
+
+	if (qp->rq_hdr_buf_size && rq->hwq.max_elements) {
+		qp->rq_hdr_buf = dma_alloc_coherent(&res->pdev->dev,
+						    rq->hwq.max_elements *
+						    qp->rq_hdr_buf_size,
+						    &qp->rq_hdr_buf_map,
+						    GFP_KERNEL);
+		if (!qp->rq_hdr_buf) {
+			rc = -ENOMEM;
+			dev_err(&res->pdev->dev,
+				"QPLIB: Failed to create rq_hdr_buf");
+			goto fail;
+		}
+	}
+	return 0;
+
+fail:
+	bnxt_qplib_free_qp_hdr_buf(res, qp);
+	return rc;
+}
+
+static void bnxt_qplib_service_nq(unsigned long data)
+{
+	struct bnxt_qplib_nq *nq = (struct bnxt_qplib_nq *)data;
+	struct bnxt_qplib_hwq *hwq = &nq->hwq;
+	struct nq_base *nqe, **nq_ptr;
+	int num_cqne_processed = 0;
+	u32 sw_cons, raw_cons;
+	u16 type;
+	int budget = nq->budget;
+	u64 q_handle;
+
+	/* Service the NQ until empty */
+	raw_cons = hwq->cons;
+	while (budget--) {
+		sw_cons = HWQ_CMP(raw_cons, hwq);
+		nq_ptr = (struct nq_base **)hwq->pbl_ptr;
+		nqe = &nq_ptr[NQE_PG(sw_cons)][NQE_IDX(sw_cons)];
+		if (!NQE_CMP_VALID(nqe, raw_cons, hwq->max_elements))
+			break;
+
+		type = le16_to_cpu(nqe->info10_type) & NQ_BASE_TYPE_MASK;
+		switch (type) {
+		case NQ_BASE_TYPE_CQ_NOTIFICATION:
+		{
+			struct nq_cn *nqcne = (struct nq_cn *)nqe;
+
+			q_handle = le32_to_cpu(nqcne->cq_handle_low);
+			q_handle |= (u64)le32_to_cpu(nqcne->cq_handle_high)
+						     << 32;
+			bnxt_qplib_arm_cq_enable((struct bnxt_qplib_cq *)
+						 ((unsigned long)q_handle));
+			if (!nq->cqn_handler(nq, (struct bnxt_qplib_cq *)
+						 ((unsigned long)q_handle)))
+				num_cqne_processed++;
+			else
+				dev_warn(&nq->pdev->dev,
+					 "QPLIB: cqn - type 0x%x not handled",
+					 type);
+			break;
+		}
+		case NQ_BASE_TYPE_DBQ_EVENT:
+			break;
+		default:
+			dev_warn(&nq->pdev->dev,
+				 "QPLIB: nqe with type = 0x%x not handled",
+				 type);
+			break;
+		}
+		raw_cons++;
+	}
+	if (hwq->cons != raw_cons) {
+		hwq->cons = raw_cons;
+		NQ_DB_REARM(nq->bar_reg_iomem, hwq->cons, hwq->max_elements);
+	}
+}
+
+static irqreturn_t bnxt_qplib_nq_irq(int irq, void *dev_instance)
+{
+	struct bnxt_qplib_nq *nq = dev_instance;
+	struct bnxt_qplib_hwq *hwq = &nq->hwq;
+	struct nq_base **nq_ptr;
+	u32 sw_cons;
+
+	/* Prefetch the NQ element */
+	sw_cons = HWQ_CMP(hwq->cons, hwq);
+	nq_ptr = (struct nq_base **)nq->hwq.pbl_ptr;
+	prefetch(&nq_ptr[NQE_PG(sw_cons)][NQE_IDX(sw_cons)]);
+
+	/* Fan out to CPU affinitized kthreads? */
+	tasklet_schedule(&nq->worker);
+
+	return IRQ_HANDLED;
+}
+
+void bnxt_qplib_disable_nq(struct bnxt_qplib_nq *nq)
+{
+	/* Make sure the HW is stopped! */
+	synchronize_irq(nq->vector);
+	tasklet_disable(&nq->worker);
+	tasklet_kill(&nq->worker);
+
+	if (nq->requested) {
+		free_irq(nq->vector, nq);
+		nq->requested = false;
+	}
+	if (nq->bar_reg_iomem)
+		iounmap(nq->bar_reg_iomem);
+	nq->bar_reg_iomem = NULL;
+
+	nq->cqn_handler = NULL;
+	nq->srqn_handler = NULL;
+	nq->vector = 0;
+}
+
+int bnxt_qplib_enable_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq,
+			 int msix_vector, int bar_reg_offset,
+			 int (*cqn_handler)(struct bnxt_qplib_nq *nq,
+					    struct bnxt_qplib_cq *),
+			 int (*srqn_handler)(struct bnxt_qplib_nq *nq,
+					     void *, u8 event))
+{
+	resource_size_t nq_base;
+	int rc;
+
+	nq->pdev = pdev;
+	nq->vector = msix_vector;
+
+	nq->cqn_handler = cqn_handler;
+
+	nq->srqn_handler = srqn_handler;
+
+	tasklet_init(&nq->worker, bnxt_qplib_service_nq, (unsigned long)nq);
+
+	nq->requested = false;
+	rc = request_irq(nq->vector, bnxt_qplib_nq_irq, 0, "bnxt_qplib_nq", nq);
+	if (rc) {
+		dev_err(&nq->pdev->dev,
+			"Failed to request IRQ for NQ: %#x", rc);
+		bnxt_qplib_disable_nq(nq);
+		goto fail;
+	}
+	nq->requested = true;
+	nq->bar_reg = NQ_CONS_PCI_BAR_REGION;
+	nq->bar_reg_off = bar_reg_offset;
+	nq_base = pci_resource_start(pdev, nq->bar_reg);
+	if (!nq_base) {
+		rc = -ENOMEM;
+		goto fail;
+	}
+	nq->bar_reg_iomem = ioremap_nocache(nq_base + nq->bar_reg_off, 4);
+	if (!nq->bar_reg_iomem) {
+		rc = -ENOMEM;
+		goto fail;
+	}
+	NQ_DB_REARM(nq->bar_reg_iomem, nq->hwq.cons, nq->hwq.max_elements);
+
+	return 0;
+fail:
+	bnxt_qplib_disable_nq(nq);
+	return rc;
+}
+
+void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq)
+{
+	if (nq->hwq.max_elements)
+		bnxt_qplib_free_hwq(nq->pdev, &nq->hwq);
+}
+
+int bnxt_qplib_alloc_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq)
+{
+	nq->pdev = pdev;
+	if (!nq->hwq.max_elements ||
+	    nq->hwq.max_elements > BNXT_QPLIB_NQE_MAX_CNT)
+		nq->hwq.max_elements = BNXT_QPLIB_NQE_MAX_CNT;
+
+	if (bnxt_qplib_alloc_init_hwq(nq->pdev, &nq->hwq, NULL, 0,
+				      &nq->hwq.max_elements,
+				      BNXT_QPLIB_MAX_NQE_ENTRY_SIZE, 0,
+				      PAGE_SIZE, HWQ_TYPE_L2_CMPL))
+		return -ENOMEM;
+
+	nq->budget = 8;
+	return 0;
+}
+
+/* QP */
+int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
+{
+	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
+	struct cmdq_create_qp1 req;
+	struct creq_create_qp1_resp *resp;
+	struct bnxt_qplib_pbl *pbl;
+	struct bnxt_qplib_q *sq = &qp->sq;
+	struct bnxt_qplib_q *rq = &qp->rq;
+	int rc;
+	u16 cmd_flags = 0;
+	u32 qp_flags = 0;
+
+	RCFW_CMD_PREP(req, CREATE_QP1, cmd_flags);
+
+	/* General */
+	req.type = qp->type;
+	req.dpi = cpu_to_le32(qp->dpi->dpi);
+	req.qp_handle = cpu_to_le64(qp->qp_handle);
+
+	/* SQ */
+	sq->hwq.max_elements = sq->max_wqe;
+	rc = bnxt_qplib_alloc_init_hwq(res->pdev, &sq->hwq, NULL, 0,
+				       &sq->hwq.max_elements,
+				       BNXT_QPLIB_MAX_SQE_ENTRY_SIZE, 0,
+				       PAGE_SIZE, HWQ_TYPE_QUEUE);
+	if (rc)
+		goto exit;
+
+	sq->swq = kcalloc(sq->hwq.max_elements, sizeof(*sq->swq), GFP_KERNEL);
+	if (!sq->swq) {
+		rc = -ENOMEM;
+		goto fail_sq;
+	}
+	pbl = &sq->hwq.pbl[PBL_LVL_0];
+	req.sq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
+	req.sq_pg_size_sq_lvl =
+		((sq->hwq.level & CMDQ_CREATE_QP1_SQ_LVL_MASK)
+				<<  CMDQ_CREATE_QP1_SQ_LVL_SFT) |
+		(pbl->pg_size == ROCE_PG_SIZE_4K ?
+				CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_4K :
+		 pbl->pg_size == ROCE_PG_SIZE_8K ?
+				CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_8K :
+		 pbl->pg_size == ROCE_PG_SIZE_64K ?
+				CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_64K :
+		 pbl->pg_size == ROCE_PG_SIZE_2M ?
+				CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_2M :
+		 pbl->pg_size == ROCE_PG_SIZE_8M ?
+				CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_8M :
+		 pbl->pg_size == ROCE_PG_SIZE_1G ?
+				CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_1G :
+		 CMDQ_CREATE_QP1_SQ_PG_SIZE_PG_4K);
+
+	if (qp->scq)
+		req.scq_cid = cpu_to_le32(qp->scq->id);
+
+	qp_flags |= CMDQ_CREATE_QP1_QP_FLAGS_RESERVED_LKEY_ENABLE;
+
+	/* RQ */
+	if (rq->max_wqe) {
+		rq->hwq.max_elements = qp->rq.max_wqe;
+		rc = bnxt_qplib_alloc_init_hwq(res->pdev, &rq->hwq, NULL, 0,
+					       &rq->hwq.max_elements,
+					       BNXT_QPLIB_MAX_RQE_ENTRY_SIZE, 0,
+					       PAGE_SIZE, HWQ_TYPE_QUEUE);
+		if (rc)
+			goto fail_sq;
+
+		rq->swq = kcalloc(rq->hwq.max_elements, sizeof(*rq->swq),
+				  GFP_KERNEL);
+		if (!rq->swq) {
+			rc = -ENOMEM;
+			goto fail_rq;
+		}
+		pbl = &rq->hwq.pbl[PBL_LVL_0];
+		req.rq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
+		req.rq_pg_size_rq_lvl =
+			((rq->hwq.level & CMDQ_CREATE_QP1_RQ_LVL_MASK) <<
+			 CMDQ_CREATE_QP1_RQ_LVL_SFT) |
+				(pbl->pg_size == ROCE_PG_SIZE_4K ?
+					CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_4K :
+				 pbl->pg_size == ROCE_PG_SIZE_8K ?
+					CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_8K :
+				 pbl->pg_size == ROCE_PG_SIZE_64K ?
+					CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_64K :
+				 pbl->pg_size == ROCE_PG_SIZE_2M ?
+					CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_2M :
+				 pbl->pg_size == ROCE_PG_SIZE_8M ?
+					CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_8M :
+				 pbl->pg_size == ROCE_PG_SIZE_1G ?
+					CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_1G :
+				 CMDQ_CREATE_QP1_RQ_PG_SIZE_PG_4K);
+		if (qp->rcq)
+			req.rcq_cid = cpu_to_le32(qp->rcq->id);
+	}
+
+	/* Header buffer - allow hdr_buf pass in */
+	rc = bnxt_qplib_alloc_qp_hdr_buf(res, qp);
+	if (rc) {
+		rc = -ENOMEM;
+		goto fail;
+	}
+	req.qp_flags = cpu_to_le32(qp_flags);
+	req.sq_size = cpu_to_le32(sq->hwq.max_elements);
+	req.rq_size = cpu_to_le32(rq->hwq.max_elements);
+
+	req.sq_fwo_sq_sge =
+		cpu_to_le16((sq->max_sge & CMDQ_CREATE_QP1_SQ_SGE_MASK) <<
+			    CMDQ_CREATE_QP1_SQ_SGE_SFT);
+	req.rq_fwo_rq_sge =
+		cpu_to_le16((rq->max_sge & CMDQ_CREATE_QP1_RQ_SGE_MASK) <<
+			    CMDQ_CREATE_QP1_RQ_SGE_SFT);
+
+	req.pd_id = cpu_to_le32(qp->pd->id);
+
+	resp = (struct creq_create_qp1_resp *)
+			bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+						     NULL, 0);
+	if (!resp) {
+		dev_err(&res->pdev->dev, "QPLIB: FP: CREATE_QP1 send failed");
+		rc = -EINVAL;
+		goto fail;
+	}
+	if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
+		/* Cmd timed out */
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_QP1 timed out");
+		rc = -ETIMEDOUT;
+		goto fail;
+	}
+	if (resp->status ||
+	    le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_QP1 failed ");
+		dev_err(&rcfw->pdev->dev,
+			"QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
+			resp->status, le16_to_cpu(req.cookie),
+			le16_to_cpu(resp->cookie));
+		rc = -EINVAL;
+		goto fail;
+	}
+	qp->id = le32_to_cpu(resp->xid);
+	qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
+	sq->flush_in_progress = false;
+	rq->flush_in_progress = false;
+
+	return 0;
+
+fail:
+	bnxt_qplib_free_qp_hdr_buf(res, qp);
+fail_rq:
+	bnxt_qplib_free_hwq(res->pdev, &rq->hwq);
+	kfree(rq->swq);
+fail_sq:
+	bnxt_qplib_free_hwq(res->pdev, &sq->hwq);
+	kfree(sq->swq);
+exit:
+	return rc;
+}
+
+int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
+{
+	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
+	struct sq_send *hw_sq_send_hdr, **hw_sq_send_ptr;
+	struct cmdq_create_qp req;
+	struct creq_create_qp_resp *resp;
+	struct bnxt_qplib_pbl *pbl;
+	struct sq_psn_search **psn_search_ptr;
+	unsigned long int psn_search, poff = 0;
+	struct bnxt_qplib_q *sq = &qp->sq;
+	struct bnxt_qplib_q *rq = &qp->rq;
+	struct bnxt_qplib_hwq *xrrq;
+	int i, rc, req_size, psn_sz;
+	u16 cmd_flags = 0, max_ssge;
+	u32 sw_prod, qp_flags = 0;
+
+	RCFW_CMD_PREP(req, CREATE_QP, cmd_flags);
+
+	/* General */
+	req.type = qp->type;
+	req.dpi = cpu_to_le32(qp->dpi->dpi);
+	req.qp_handle = cpu_to_le64(qp->qp_handle);
+
+	/* SQ */
+	psn_sz = (qp->type == CMDQ_CREATE_QP_TYPE_RC) ?
+		 sizeof(struct sq_psn_search) : 0;
+	sq->hwq.max_elements = sq->max_wqe;
+	rc = bnxt_qplib_alloc_init_hwq(res->pdev, &sq->hwq, sq->sglist,
+				       sq->nmap, &sq->hwq.max_elements,
+				       BNXT_QPLIB_MAX_SQE_ENTRY_SIZE,
+				       psn_sz,
+				       PAGE_SIZE, HWQ_TYPE_QUEUE);
+	if (rc)
+		goto exit;
+
+	sq->swq = kcalloc(sq->hwq.max_elements, sizeof(*sq->swq), GFP_KERNEL);
+	if (!sq->swq) {
+		rc = -ENOMEM;
+		goto fail_sq;
+	}
+	hw_sq_send_ptr = (struct sq_send **)sq->hwq.pbl_ptr;
+	if (psn_sz) {
+		psn_search_ptr = (struct sq_psn_search **)
+				  &hw_sq_send_ptr[get_sqe_pg
+					(sq->hwq.max_elements)];
+		psn_search = (unsigned long int)
+			      &hw_sq_send_ptr[get_sqe_pg(sq->hwq.max_elements)]
+			      [get_sqe_idx(sq->hwq.max_elements)];
+		if (psn_search & ~PAGE_MASK) {
+			/* If the psn_search does not start on a page boundary,
+			 * then calculate the offset
+			 */
+			poff = (psn_search & ~PAGE_MASK) /
+				BNXT_QPLIB_MAX_PSNE_ENTRY_SIZE;
+		}
+		for (i = 0; i < sq->hwq.max_elements; i++)
+			sq->swq[i].psn_search =
+				&psn_search_ptr[get_psne_pg(i + poff)]
+					       [get_psne_idx(i + poff)];
+	}
+	pbl = &sq->hwq.pbl[PBL_LVL_0];
+	req.sq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
+	req.sq_pg_size_sq_lvl =
+		((sq->hwq.level & CMDQ_CREATE_QP_SQ_LVL_MASK)
+				 <<  CMDQ_CREATE_QP_SQ_LVL_SFT) |
+		(pbl->pg_size == ROCE_PG_SIZE_4K ?
+				CMDQ_CREATE_QP_SQ_PG_SIZE_PG_4K :
+		 pbl->pg_size == ROCE_PG_SIZE_8K ?
+				CMDQ_CREATE_QP_SQ_PG_SIZE_PG_8K :
+		 pbl->pg_size == ROCE_PG_SIZE_64K ?
+				CMDQ_CREATE_QP_SQ_PG_SIZE_PG_64K :
+		 pbl->pg_size == ROCE_PG_SIZE_2M ?
+				CMDQ_CREATE_QP_SQ_PG_SIZE_PG_2M :
+		 pbl->pg_size == ROCE_PG_SIZE_8M ?
+				CMDQ_CREATE_QP_SQ_PG_SIZE_PG_8M :
+		 pbl->pg_size == ROCE_PG_SIZE_1G ?
+				CMDQ_CREATE_QP_SQ_PG_SIZE_PG_1G :
+		 CMDQ_CREATE_QP_SQ_PG_SIZE_PG_4K);
+
+	/* initialize all SQ WQEs to LOCAL_INVALID (sq prep for hw fetch) */
+	hw_sq_send_ptr = (struct sq_send **)sq->hwq.pbl_ptr;
+	for (sw_prod = 0; sw_prod < sq->hwq.max_elements; sw_prod++) {
+		hw_sq_send_hdr = &hw_sq_send_ptr[get_sqe_pg(sw_prod)]
+						[get_sqe_idx(sw_prod)];
+		hw_sq_send_hdr->wqe_type = SQ_BASE_WQE_TYPE_LOCAL_INVALID;
+	}
+
+	if (qp->scq)
+		req.scq_cid = cpu_to_le32(qp->scq->id);
+
+	qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_RESERVED_LKEY_ENABLE;
+	qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_FR_PMR_ENABLED;
+	if (qp->sig_type)
+		qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_FORCE_COMPLETION;
+
+	/* RQ */
+	if (rq->max_wqe) {
+		rq->hwq.max_elements = rq->max_wqe;
+		rc = bnxt_qplib_alloc_init_hwq(res->pdev, &rq->hwq, rq->sglist,
+					       rq->nmap, &rq->hwq.max_elements,
+					       BNXT_QPLIB_MAX_RQE_ENTRY_SIZE, 0,
+					       PAGE_SIZE, HWQ_TYPE_QUEUE);
+		if (rc)
+			goto fail_sq;
+
+		rq->swq = kcalloc(rq->hwq.max_elements, sizeof(*rq->swq),
+				  GFP_KERNEL);
+		if (!rq->swq) {
+			rc = -ENOMEM;
+			goto fail_rq;
+		}
+		pbl = &rq->hwq.pbl[PBL_LVL_0];
+		req.rq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
+		req.rq_pg_size_rq_lvl =
+			((rq->hwq.level & CMDQ_CREATE_QP_RQ_LVL_MASK) <<
+			 CMDQ_CREATE_QP_RQ_LVL_SFT) |
+				(pbl->pg_size == ROCE_PG_SIZE_4K ?
+					CMDQ_CREATE_QP_RQ_PG_SIZE_PG_4K :
+				 pbl->pg_size == ROCE_PG_SIZE_8K ?
+					CMDQ_CREATE_QP_RQ_PG_SIZE_PG_8K :
+				 pbl->pg_size == ROCE_PG_SIZE_64K ?
+					CMDQ_CREATE_QP_RQ_PG_SIZE_PG_64K :
+				 pbl->pg_size == ROCE_PG_SIZE_2M ?
+					CMDQ_CREATE_QP_RQ_PG_SIZE_PG_2M :
+				 pbl->pg_size == ROCE_PG_SIZE_8M ?
+					CMDQ_CREATE_QP_RQ_PG_SIZE_PG_8M :
+				 pbl->pg_size == ROCE_PG_SIZE_1G ?
+					CMDQ_CREATE_QP_RQ_PG_SIZE_PG_1G :
+				 CMDQ_CREATE_QP_RQ_PG_SIZE_PG_4K);
+	}
+
+	if (qp->rcq)
+		req.rcq_cid = cpu_to_le32(qp->rcq->id);
+	req.qp_flags = cpu_to_le32(qp_flags);
+	req.sq_size = cpu_to_le32(sq->hwq.max_elements);
+	req.rq_size = cpu_to_le32(rq->hwq.max_elements);
+	qp->sq_hdr_buf = NULL;
+	qp->rq_hdr_buf = NULL;
+
+	rc = bnxt_qplib_alloc_qp_hdr_buf(res, qp);
+	if (rc)
+		goto fail_rq;
+
+	/* CTRL-22434: Irrespective of the requested SGE count on the SQ
+	 * always create the QP with max send sges possible if the requested
+	 * inline size is greater than 0.
+	 */
+	max_ssge = qp->max_inline_data ? 6 : sq->max_sge;
+	req.sq_fwo_sq_sge = cpu_to_le16(
+				((max_ssge & CMDQ_CREATE_QP_SQ_SGE_MASK)
+				 << CMDQ_CREATE_QP_SQ_SGE_SFT) | 0);
+	req.rq_fwo_rq_sge = cpu_to_le16(
+				((rq->max_sge & CMDQ_CREATE_QP_RQ_SGE_MASK)
+				 << CMDQ_CREATE_QP_RQ_SGE_SFT) | 0);
+	/* ORRQ and IRRQ */
+	if (psn_sz) {
+		xrrq = &qp->orrq;
+		xrrq->max_elements =
+			ORD_LIMIT_TO_ORRQ_SLOTS(qp->max_rd_atomic);
+		req_size = xrrq->max_elements *
+			   BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE + PAGE_SIZE - 1;
+		req_size &= ~(PAGE_SIZE - 1);
+		rc = bnxt_qplib_alloc_init_hwq(res->pdev, xrrq, NULL, 0,
+					       &xrrq->max_elements,
+					       BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE,
+					       0, req_size, HWQ_TYPE_CTX);
+		if (rc)
+			goto fail_buf_free;
+		pbl = &xrrq->pbl[PBL_LVL_0];
+		req.orrq_addr = cpu_to_le64(pbl->pg_map_arr[0]);
+
+		xrrq = &qp->irrq;
+		xrrq->max_elements = IRD_LIMIT_TO_IRRQ_SLOTS(
+						qp->max_dest_rd_atomic);
+		req_size = xrrq->max_elements *
+			   BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE + PAGE_SIZE - 1;
+		req_size &= ~(PAGE_SIZE - 1);
+
+		rc = bnxt_qplib_alloc_init_hwq(res->pdev, xrrq, NULL, 0,
+					       &xrrq->max_elements,
+					       BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE,
+					       0, req_size, HWQ_TYPE_CTX);
+		if (rc)
+			goto fail_orrq;
+
+		pbl = &xrrq->pbl[PBL_LVL_0];
+		req.irrq_addr = cpu_to_le64(pbl->pg_map_arr[0]);
+	}
+	req.pd_id = cpu_to_le32(qp->pd->id);
+
+	resp = (struct creq_create_qp_resp *)
+			bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+						     NULL, 0);
+	if (!resp) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_QP send failed");
+		rc = -EINVAL;
+		goto fail;
+	}
+	if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
+		/* Cmd timed out */
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_QP timed out");
+		rc = -ETIMEDOUT;
+		goto fail;
+	}
+	if (resp->status ||
+	    le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_QP failed ");
+		dev_err(&rcfw->pdev->dev,
+			"QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
+			resp->status, le16_to_cpu(req.cookie),
+			le16_to_cpu(resp->cookie));
+		rc = -EINVAL;
+		goto fail;
+	}
+	qp->id = le32_to_cpu(resp->xid);
+	qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
+	sq->flush_in_progress = false;
+	rq->flush_in_progress = false;
+
+	return 0;
+
+fail:
+	if (qp->irrq.max_elements)
+		bnxt_qplib_free_hwq(res->pdev, &qp->irrq);
+fail_orrq:
+	if (qp->orrq.max_elements)
+		bnxt_qplib_free_hwq(res->pdev, &qp->orrq);
+fail_buf_free:
+	bnxt_qplib_free_qp_hdr_buf(res, qp);
+fail_rq:
+	bnxt_qplib_free_hwq(res->pdev, &rq->hwq);
+	kfree(rq->swq);
+fail_sq:
+	bnxt_qplib_free_hwq(res->pdev, &sq->hwq);
+	kfree(sq->swq);
+exit:
+	return rc;
+}
+
+static void __modify_flags_from_init_state(struct bnxt_qplib_qp *qp)
+{
+	switch (qp->state) {
+	case CMDQ_MODIFY_QP_NEW_STATE_RTR:
+		/* INIT->RTR, configure the path_mtu to the default
+		 * 2048 if not being requested
+		 */
+		if (!(qp->modify_flags &
+		    CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU)) {
+			qp->modify_flags |=
+				CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU;
+			qp->path_mtu =
+				CMDQ_MODIFY_QP_PATH_MTU_MTU_2048;
+		}
+		qp->modify_flags &=
+			~CMDQ_MODIFY_QP_MODIFY_MASK_VLAN_ID;
+		/* Bono FW require the max_dest_rd_atomic to be >= 1 */
+		if (qp->max_dest_rd_atomic < 1)
+			qp->max_dest_rd_atomic = 1;
+		qp->modify_flags &= ~CMDQ_MODIFY_QP_MODIFY_MASK_SRC_MAC;
+		/* Bono FW 20.6.5 requires SGID_INDEX configuration */
+		if (!(qp->modify_flags &
+		    CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX)) {
+			qp->modify_flags |=
+				CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX;
+			qp->ah.sgid_index = 0;
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+static void __modify_flags_from_rtr_state(struct bnxt_qplib_qp *qp)
+{
+	switch (qp->state) {
+	case CMDQ_MODIFY_QP_NEW_STATE_RTS:
+		/* Bono FW requires the max_rd_atomic to be >= 1 */
+		if (qp->max_rd_atomic < 1)
+			qp->max_rd_atomic = 1;
+		/* Bono FW does not allow PKEY_INDEX,
+		 * DGID, FLOW_LABEL, SGID_INDEX, HOP_LIMIT,
+		 * TRAFFIC_CLASS, DEST_MAC, PATH_MTU, RQ_PSN,
+		 * MIN_RNR_TIMER, MAX_DEST_RD_ATOMIC, DEST_QP_ID
+		 * modification
+		 */
+		qp->modify_flags &=
+			~(CMDQ_MODIFY_QP_MODIFY_MASK_PKEY |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_DGID |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_FLOW_LABEL |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_HOP_LIMIT |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_TRAFFIC_CLASS |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_DEST_MAC |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_RQ_PSN |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_MIN_RNR_TIMER |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_MAX_DEST_RD_ATOMIC |
+			  CMDQ_MODIFY_QP_MODIFY_MASK_DEST_QP_ID);
+		break;
+	default:
+		break;
+	}
+}
+
+static void __filter_modify_flags(struct bnxt_qplib_qp *qp)
+{
+	switch (qp->cur_qp_state) {
+	case CMDQ_MODIFY_QP_NEW_STATE_RESET:
+		break;
+	case CMDQ_MODIFY_QP_NEW_STATE_INIT:
+		__modify_flags_from_init_state(qp);
+		break;
+	case CMDQ_MODIFY_QP_NEW_STATE_RTR:
+		__modify_flags_from_rtr_state(qp);
+		break;
+	case CMDQ_MODIFY_QP_NEW_STATE_RTS:
+		break;
+	case CMDQ_MODIFY_QP_NEW_STATE_SQD:
+		break;
+	case CMDQ_MODIFY_QP_NEW_STATE_SQE:
+		break;
+	case CMDQ_MODIFY_QP_NEW_STATE_ERR:
+		break;
+	default:
+		break;
+	}
+}
+
+int bnxt_qplib_modify_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
+{
+	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
+	struct cmdq_modify_qp req;
+	struct creq_modify_qp_resp *resp;
+	u16 cmd_flags = 0, pkey;
+	u32 temp32[4];
+	u32 bmask;
+
+	RCFW_CMD_PREP(req, MODIFY_QP, cmd_flags);
+
+	/* Filter out the qp_attr_mask based on the state->new transition */
+	__filter_modify_flags(qp);
+	bmask = qp->modify_flags;
+	req.modify_mask = cpu_to_le32(qp->modify_flags);
+	req.qp_cid = cpu_to_le32(qp->id);
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_STATE) {
+		req.network_type_en_sqd_async_notify_new_state =
+				(qp->state & CMDQ_MODIFY_QP_NEW_STATE_MASK) |
+				(qp->en_sqd_async_notify ?
+					CMDQ_MODIFY_QP_EN_SQD_ASYNC_NOTIFY : 0);
+	}
+	req.network_type_en_sqd_async_notify_new_state |= qp->nw_type;
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_ACCESS)
+		req.access = qp->access;
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_PKEY) {
+		if (!bnxt_qplib_get_pkey(res, &res->pkey_tbl,
+					 qp->pkey_index, &pkey))
+			req.pkey = cpu_to_le16(pkey);
+	}
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_QKEY)
+		req.qkey = cpu_to_le32(qp->qkey);
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DGID) {
+		memcpy(temp32, qp->ah.dgid.data, sizeof(struct bnxt_qplib_gid));
+		req.dgid[0] = cpu_to_le32(temp32[0]);
+		req.dgid[1] = cpu_to_le32(temp32[1]);
+		req.dgid[2] = cpu_to_le32(temp32[2]);
+		req.dgid[3] = cpu_to_le32(temp32[3]);
+	}
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_FLOW_LABEL)
+		req.flow_label = cpu_to_le32(qp->ah.flow_label);
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX)
+		req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id
+					     [qp->ah.sgid_index]);
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_HOP_LIMIT)
+		req.hop_limit = qp->ah.hop_limit;
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_TRAFFIC_CLASS)
+		req.traffic_class = qp->ah.traffic_class;
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DEST_MAC)
+		memcpy(req.dest_mac, qp->ah.dmac, 6);
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU)
+		req.path_mtu = qp->path_mtu;
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_TIMEOUT)
+		req.timeout = qp->timeout;
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RETRY_CNT)
+		req.retry_cnt = qp->retry_cnt;
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RNR_RETRY)
+		req.rnr_retry = qp->rnr_retry;
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MIN_RNR_TIMER)
+		req.min_rnr_timer = qp->min_rnr_timer;
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RQ_PSN)
+		req.rq_psn = cpu_to_le32(qp->rq.psn);
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_SQ_PSN)
+		req.sq_psn = cpu_to_le32(qp->sq.psn);
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MAX_RD_ATOMIC)
+		req.max_rd_atomic =
+			ORD_LIMIT_TO_ORRQ_SLOTS(qp->max_rd_atomic);
+
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MAX_DEST_RD_ATOMIC)
+		req.max_dest_rd_atomic =
+			IRD_LIMIT_TO_IRRQ_SLOTS(qp->max_dest_rd_atomic);
+
+	req.sq_size = cpu_to_le32(qp->sq.hwq.max_elements);
+	req.rq_size = cpu_to_le32(qp->rq.hwq.max_elements);
+	req.sq_sge = cpu_to_le16(qp->sq.max_sge);
+	req.rq_sge = cpu_to_le16(qp->rq.max_sge);
+	req.max_inline_data = cpu_to_le32(qp->max_inline_data);
+	if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DEST_QP_ID)
+		req.dest_qp_id = cpu_to_le32(qp->dest_qpn);
+
+	req.vlan_pcp_vlan_dei_vlan_id = cpu_to_le16(qp->vlan_id);
+
+	resp = (struct creq_modify_qp_resp *)
+			bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+						     NULL, 0);
+	if (!resp) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: MODIFY_QP send failed");
+		return -EINVAL;
+	}
+	if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
+		/* Cmd timed out */
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: MODIFY_QP timed out");
+		return -ETIMEDOUT;
+	}
+	if (resp->status ||
+	    le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: MODIFY_QP failed ");
+		dev_err(&rcfw->pdev->dev,
+			"QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
+			resp->status, le16_to_cpu(req.cookie),
+			le16_to_cpu(resp->cookie));
+		return -EINVAL;
+	}
+	qp->cur_qp_state = qp->state;
+	return 0;
+}
+
+int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
+{
+	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
+	struct cmdq_query_qp req;
+	struct creq_query_qp_resp *resp;
+	struct creq_query_qp_resp_sb *sb;
+	u16 cmd_flags = 0;
+	u32 temp32[4];
+	int i;
+
+	RCFW_CMD_PREP(req, QUERY_QP, cmd_flags);
+
+	req.qp_cid = cpu_to_le32(qp->id);
+	req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
+	resp = (struct creq_query_qp_resp *)
+			bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+						     (void **)&sb, 0);
+	if (!resp) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: QUERY_QP send failed");
+		return -EINVAL;
+	}
+	if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
+		/* Cmd timed out */
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: QUERY_QP timed out");
+		return -ETIMEDOUT;
+	}
+	if (resp->status ||
+	    le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: QUERY_QP failed ");
+		dev_err(&rcfw->pdev->dev,
+			"QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
+			resp->status, le16_to_cpu(req.cookie),
+			le16_to_cpu(resp->cookie));
+		return -EINVAL;
+	}
+	/* Extract the context from the side buffer */
+	qp->state = sb->en_sqd_async_notify_state &
+			CREQ_QUERY_QP_RESP_SB_STATE_MASK;
+	qp->en_sqd_async_notify = sb->en_sqd_async_notify_state &
+				  CREQ_QUERY_QP_RESP_SB_EN_SQD_ASYNC_NOTIFY ?
+				  true : false;
+	qp->access = sb->access;
+	qp->pkey_index = le16_to_cpu(sb->pkey);
+	qp->qkey = le32_to_cpu(sb->qkey);
+
+	temp32[0] = le32_to_cpu(sb->dgid[0]);
+	temp32[1] = le32_to_cpu(sb->dgid[1]);
+	temp32[2] = le32_to_cpu(sb->dgid[2]);
+	temp32[3] = le32_to_cpu(sb->dgid[3]);
+	memcpy(qp->ah.dgid.data, temp32, sizeof(qp->ah.dgid.data));
+
+	qp->ah.flow_label = le32_to_cpu(sb->flow_label);
+
+	qp->ah.sgid_index = 0;
+	for (i = 0; i < res->sgid_tbl.max; i++) {
+		if (res->sgid_tbl.hw_id[i] == le16_to_cpu(sb->sgid_index)) {
+			qp->ah.sgid_index = i;
+			break;
+		}
+	}
+	if (i == res->sgid_tbl.max)
+		dev_warn(&res->pdev->dev, "QPLIB: SGID not found??");
+
+	qp->ah.hop_limit = sb->hop_limit;
+	qp->ah.traffic_class = sb->traffic_class;
+	memcpy(qp->ah.dmac, sb->dest_mac, 6);
+	qp->ah.vlan_id = (le16_to_cpu(sb->path_mtu_dest_vlan_id) &
+				CREQ_QUERY_QP_RESP_SB_VLAN_ID_MASK) >>
+				CREQ_QUERY_QP_RESP_SB_VLAN_ID_SFT;
+	qp->path_mtu = (le16_to_cpu(sb->path_mtu_dest_vlan_id) &
+				    CREQ_QUERY_QP_RESP_SB_PATH_MTU_MASK) >>
+				    CREQ_QUERY_QP_RESP_SB_PATH_MTU_SFT;
+	qp->timeout = sb->timeout;
+	qp->retry_cnt = sb->retry_cnt;
+	qp->rnr_retry = sb->rnr_retry;
+	qp->min_rnr_timer = sb->min_rnr_timer;
+	qp->rq.psn = le32_to_cpu(sb->rq_psn);
+	qp->max_rd_atomic = ORRQ_SLOTS_TO_ORD_LIMIT(sb->max_rd_atomic);
+	qp->sq.psn = le32_to_cpu(sb->sq_psn);
+	qp->max_dest_rd_atomic =
+			IRRQ_SLOTS_TO_IRD_LIMIT(sb->max_dest_rd_atomic);
+	qp->sq.max_wqe = qp->sq.hwq.max_elements;
+	qp->rq.max_wqe = qp->rq.hwq.max_elements;
+	qp->sq.max_sge = le16_to_cpu(sb->sq_sge);
+	qp->rq.max_sge = le16_to_cpu(sb->rq_sge);
+	qp->max_inline_data = le32_to_cpu(sb->max_inline_data);
+	qp->dest_qpn = le32_to_cpu(sb->dest_qp_id);
+	memcpy(qp->smac, sb->src_mac, 6);
+	qp->vlan_id = le16_to_cpu(sb->vlan_pcp_vlan_dei_vlan_id);
+	return 0;
+}
+
+static void __clean_cq(struct bnxt_qplib_cq *cq, u64 qp)
+{
+	struct bnxt_qplib_hwq *cq_hwq = &cq->hwq;
+	struct cq_base *hw_cqe, **hw_cqe_ptr;
+	int i;
+
+	for (i = 0; i < cq_hwq->max_elements; i++) {
+		hw_cqe_ptr = (struct cq_base **)cq_hwq->pbl_ptr;
+		hw_cqe = &hw_cqe_ptr[CQE_PG(i)][CQE_IDX(i)];
+		if (!CQE_CMP_VALID(hw_cqe, i, cq_hwq->max_elements))
+			continue;
+		switch (hw_cqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK) {
+		case CQ_BASE_CQE_TYPE_REQ:
+		case CQ_BASE_CQE_TYPE_TERMINAL:
+		{
+			struct cq_req *cqe = (struct cq_req *)hw_cqe;
+
+			if (qp == le64_to_cpu(cqe->qp_handle))
+				cqe->qp_handle = 0;
+			break;
+		}
+		case CQ_BASE_CQE_TYPE_RES_RC:
+		case CQ_BASE_CQE_TYPE_RES_UD:
+		case CQ_BASE_CQE_TYPE_RES_RAWETH_QP1:
+		{
+			struct cq_res_rc *cqe = (struct cq_res_rc *)hw_cqe;
+
+			if (qp == le64_to_cpu(cqe->qp_handle))
+				cqe->qp_handle = 0;
+			break;
+		}
+		default:
+			break;
+		}
+	}
+}
+
+int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res,
+			  struct bnxt_qplib_qp *qp)
+{
+	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
+	struct cmdq_destroy_qp req;
+	struct creq_destroy_qp_resp *resp;
+	unsigned long flags;
+	u16 cmd_flags = 0;
+
+	RCFW_CMD_PREP(req, DESTROY_QP, cmd_flags);
+
+	req.qp_cid = cpu_to_le32(qp->id);
+	resp = (struct creq_destroy_qp_resp *)
+			bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+						     NULL, 0);
+	if (!resp) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_QP send failed");
+		return -EINVAL;
+	}
+	if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
+		/* Cmd timed out */
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_QP timed out");
+		return -ETIMEDOUT;
+	}
+	if (resp->status ||
+	    le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_QP failed ");
+		dev_err(&rcfw->pdev->dev,
+			"QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
+			resp->status, le16_to_cpu(req.cookie),
+			le16_to_cpu(resp->cookie));
+		return -EINVAL;
+	}
+
+	/* Must walk the associated CQs to nullified the QP ptr */
+	spin_lock_irqsave(&qp->scq->hwq.lock, flags);
+
+	__clean_cq(qp->scq, (u64)(unsigned long)qp);
+
+	if (qp->rcq && qp->rcq != qp->scq) {
+		spin_lock(&qp->rcq->hwq.lock);
+		__clean_cq(qp->rcq, (u64)(unsigned long)qp);
+		spin_unlock(&qp->rcq->hwq.lock);
+	}
+
+	spin_unlock_irqrestore(&qp->scq->hwq.lock, flags);
+
+	bnxt_qplib_free_qp_hdr_buf(res, qp);
+	bnxt_qplib_free_hwq(res->pdev, &qp->sq.hwq);
+	kfree(qp->sq.swq);
+
+	bnxt_qplib_free_hwq(res->pdev, &qp->rq.hwq);
+	kfree(qp->rq.swq);
+
+	if (qp->irrq.max_elements)
+		bnxt_qplib_free_hwq(res->pdev, &qp->irrq);
+	if (qp->orrq.max_elements)
+		bnxt_qplib_free_hwq(res->pdev, &qp->orrq);
+
+	return 0;
+}
+
+void *bnxt_qplib_get_qp1_sq_buf(struct bnxt_qplib_qp *qp,
+				struct bnxt_qplib_sge *sge)
+{
+	struct bnxt_qplib_q *sq = &qp->sq;
+	u32 sw_prod;
+
+	memset(sge, 0, sizeof(*sge));
+
+	if (qp->sq_hdr_buf) {
+		sw_prod = HWQ_CMP(sq->hwq.prod, &sq->hwq);
+		sge->addr = (dma_addr_t)(qp->sq_hdr_buf_map +
+					 sw_prod * qp->sq_hdr_buf_size);
+		sge->lkey = 0xFFFFFFFF;
+		sge->size = qp->sq_hdr_buf_size;
+		return qp->sq_hdr_buf + sw_prod * sge->size;
+	}
+	return NULL;
+}
+
+u32 bnxt_qplib_get_rq_prod_index(struct bnxt_qplib_qp *qp)
+{
+	struct bnxt_qplib_q *rq = &qp->rq;
+
+	return HWQ_CMP(rq->hwq.prod, &rq->hwq);
+}
+
+dma_addr_t bnxt_qplib_get_qp_buf_from_index(struct bnxt_qplib_qp *qp, u32 index)
+{
+	return (qp->rq_hdr_buf_map + index * qp->rq_hdr_buf_size);
+}
+
+void *bnxt_qplib_get_qp1_rq_buf(struct bnxt_qplib_qp *qp,
+				struct bnxt_qplib_sge *sge)
+{
+	struct bnxt_qplib_q *rq = &qp->rq;
+	u32 sw_prod;
+
+	memset(sge, 0, sizeof(*sge));
+
+	if (qp->rq_hdr_buf) {
+		sw_prod = HWQ_CMP(rq->hwq.prod, &rq->hwq);
+		sge->addr = (dma_addr_t)(qp->rq_hdr_buf_map +
+					 sw_prod * qp->rq_hdr_buf_size);
+		sge->lkey = 0xFFFFFFFF;
+		sge->size = qp->rq_hdr_buf_size;
+		return qp->rq_hdr_buf + sw_prod * sge->size;
+	}
+	return NULL;
+}
+
+void bnxt_qplib_post_send_db(struct bnxt_qplib_qp *qp)
+{
+	struct bnxt_qplib_q *sq = &qp->sq;
+	struct dbr_dbr db_msg = { 0 };
+	u32 sw_prod;
+
+	sw_prod = HWQ_CMP(sq->hwq.prod, &sq->hwq);
+
+	db_msg.index = cpu_to_le32((sw_prod << DBR_DBR_INDEX_SFT) &
+				   DBR_DBR_INDEX_MASK);
+	db_msg.type_xid =
+		cpu_to_le32(((qp->id << DBR_DBR_XID_SFT) & DBR_DBR_XID_MASK) |
+			    DBR_DBR_TYPE_SQ);
+	/* Flush all the WQE writes to HW */
+	wmb();
+	__iowrite64_copy(qp->dpi->dbr, &db_msg, sizeof(db_msg) / sizeof(u64));
+}
+
+int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp,
+			 struct bnxt_qplib_swqe *wqe)
+{
+	struct bnxt_qplib_q *sq = &qp->sq;
+	struct bnxt_qplib_swq *swq;
+	struct sq_send *hw_sq_send_hdr, **hw_sq_send_ptr;
+	struct sq_sge *hw_sge;
+	u32 sw_prod;
+	u8 wqe_size16;
+	int i, rc = 0, data_len = 0, pkt_num = 0;
+	__le32 temp32;
+
+	if (qp->state != CMDQ_MODIFY_QP_NEW_STATE_RTS) {
+		rc = -EINVAL;
+		goto done;
+	}
+	if (HWQ_CMP((sq->hwq.prod + 1), &sq->hwq) ==
+	    HWQ_CMP(sq->hwq.cons, &sq->hwq)) {
+		rc = -ENOMEM;
+		goto done;
+	}
+	sw_prod = HWQ_CMP(sq->hwq.prod, &sq->hwq);
+	swq = &sq->swq[sw_prod];
+	swq->wr_id = wqe->wr_id;
+	swq->type = wqe->type;
+	swq->flags = wqe->flags;
+	if (qp->sig_type)
+		swq->flags |= SQ_SEND_FLAGS_SIGNAL_COMP;
+	swq->start_psn = sq->psn & BTH_PSN_MASK;
+
+	hw_sq_send_ptr = (struct sq_send **)sq->hwq.pbl_ptr;
+	hw_sq_send_hdr = &hw_sq_send_ptr[get_sqe_pg(sw_prod)]
+					[get_sqe_idx(sw_prod)];
+
+	memset(hw_sq_send_hdr, 0, BNXT_QPLIB_MAX_SQE_ENTRY_SIZE);
+
+	if (wqe->flags & BNXT_QPLIB_SWQE_FLAGS_INLINE) {
+		/* Copy the inline data */
+		if (wqe->inline_len > BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH) {
+			dev_warn(&sq->hwq.pdev->dev,
+				 "QPLIB: Inline data length > 96 detected");
+			data_len = BNXT_QPLIB_SWQE_MAX_INLINE_LENGTH;
+		} else {
+			data_len = wqe->inline_len;
+		}
+		memcpy(hw_sq_send_hdr->data, wqe->inline_data, data_len);
+		wqe_size16 = (data_len + 15) >> 4;
+	} else {
+		for (i = 0, hw_sge = (struct sq_sge *)hw_sq_send_hdr->data;
+		     i < wqe->num_sge; i++, hw_sge++) {
+			hw_sge->va_or_pa = cpu_to_le64(wqe->sg_list[i].addr);
+			hw_sge->l_key = cpu_to_le32(wqe->sg_list[i].lkey);
+			hw_sge->size = cpu_to_le32(wqe->sg_list[i].size);
+			data_len += wqe->sg_list[i].size;
+		}
+		/* Each SGE entry = 1 WQE size16 */
+		wqe_size16 = wqe->num_sge;
+	}
+
+	/* Specifics */
+	switch (wqe->type) {
+	case BNXT_QPLIB_SWQE_TYPE_SEND:
+		if (qp->type == CMDQ_CREATE_QP1_TYPE_GSI) {
+			/* Assemble info for Raw Ethertype QPs */
+			struct sq_send_raweth_qp1 *sqe =
+				(struct sq_send_raweth_qp1 *)hw_sq_send_hdr;
+
+			sqe->wqe_type = wqe->type;
+			sqe->flags = wqe->flags;
+			sqe->wqe_size = wqe_size16 +
+				((offsetof(typeof(*sqe), data) + 15) >> 4);
+			sqe->cfa_action = cpu_to_le16(wqe->rawqp1.cfa_action);
+			sqe->lflags = cpu_to_le16(wqe->rawqp1.lflags);
+			sqe->length = cpu_to_le32(data_len);
+			sqe->cfa_meta = cpu_to_le32((wqe->rawqp1.cfa_meta &
+				SQ_SEND_RAWETH_QP1_CFA_META_VLAN_VID_MASK) <<
+				SQ_SEND_RAWETH_QP1_CFA_META_VLAN_VID_SFT);
+
+			break;
+		}
+		/* else, just fall thru */
+	case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_IMM:
+	case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_INV:
+	{
+		struct sq_send *sqe = (struct sq_send *)hw_sq_send_hdr;
+
+		sqe->wqe_type = wqe->type;
+		sqe->flags = wqe->flags;
+		sqe->wqe_size = wqe_size16 +
+				((offsetof(typeof(*sqe), data) + 15) >> 4);
+		sqe->inv_key_or_imm_data = cpu_to_le32(
+						wqe->send.inv_key);
+		if (qp->type == CMDQ_CREATE_QP_TYPE_UD) {
+			sqe->q_key = cpu_to_le32(wqe->send.q_key);
+			sqe->dst_qp = cpu_to_le32(
+					wqe->send.dst_qp & SQ_SEND_DST_QP_MASK);
+			sqe->length = cpu_to_le32(data_len);
+			sqe->avid = cpu_to_le32(wqe->send.avid &
+						SQ_SEND_AVID_MASK);
+			sq->psn = (sq->psn + 1) & BTH_PSN_MASK;
+		} else {
+			sqe->length = cpu_to_le32(data_len);
+			sqe->dst_qp = 0;
+			sqe->avid = 0;
+			if (qp->mtu)
+				pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
+			if (!pkt_num)
+				pkt_num = 1;
+			sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
+		}
+		break;
+	}
+	case BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE:
+	case BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE_WITH_IMM:
+	case BNXT_QPLIB_SWQE_TYPE_RDMA_READ:
+	{
+		struct sq_rdma *sqe = (struct sq_rdma *)hw_sq_send_hdr;
+
+		sqe->wqe_type = wqe->type;
+		sqe->flags = wqe->flags;
+		sqe->wqe_size = wqe_size16 +
+				((offsetof(typeof(*sqe), data) + 15) >> 4);
+		sqe->imm_data = cpu_to_le32(wqe->rdma.inv_key);
+		sqe->length = cpu_to_le32((u32)data_len);
+		sqe->remote_va = cpu_to_le64(wqe->rdma.remote_va);
+		sqe->remote_key = cpu_to_le32(wqe->rdma.r_key);
+		if (qp->mtu)
+			pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
+		if (!pkt_num)
+			pkt_num = 1;
+		sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
+		break;
+	}
+	case BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP:
+	case BNXT_QPLIB_SWQE_TYPE_ATOMIC_FETCH_AND_ADD:
+	{
+		struct sq_atomic *sqe = (struct sq_atomic *)hw_sq_send_hdr;
+
+		sqe->wqe_type = wqe->type;
+		sqe->flags = wqe->flags;
+		sqe->remote_key = cpu_to_le32(wqe->atomic.r_key);
+		sqe->remote_va = cpu_to_le64(wqe->atomic.remote_va);
+		sqe->swap_data = cpu_to_le64(wqe->atomic.swap_data);
+		sqe->cmp_data = cpu_to_le64(wqe->atomic.cmp_data);
+		if (qp->mtu)
+			pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
+		if (!pkt_num)
+			pkt_num = 1;
+		sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
+		break;
+	}
+	case BNXT_QPLIB_SWQE_TYPE_LOCAL_INV:
+	{
+		struct sq_localinvalidate *sqe =
+				(struct sq_localinvalidate *)hw_sq_send_hdr;
+
+		sqe->wqe_type = wqe->type;
+		sqe->flags = wqe->flags;
+		sqe->inv_l_key = cpu_to_le32(wqe->local_inv.inv_l_key);
+
+		break;
+	}
+	case BNXT_QPLIB_SWQE_TYPE_FAST_REG_MR:
+	{
+		struct sq_fr_pmr *sqe = (struct sq_fr_pmr *)hw_sq_send_hdr;
+
+		sqe->wqe_type = wqe->type;
+		sqe->flags = wqe->flags;
+		sqe->access_cntl = wqe->frmr.access_cntl |
+				   SQ_FR_PMR_ACCESS_CNTL_LOCAL_WRITE;
+		sqe->zero_based_page_size_log =
+			(wqe->frmr.pg_sz_log & SQ_FR_PMR_PAGE_SIZE_LOG_MASK) <<
+			SQ_FR_PMR_PAGE_SIZE_LOG_SFT |
+			(wqe->frmr.zero_based ? SQ_FR_PMR_ZERO_BASED : 0);
+		sqe->l_key = cpu_to_le32(wqe->frmr.l_key);
+		temp32 = cpu_to_le32(wqe->frmr.length);
+		memcpy(sqe->length, &temp32, sizeof(wqe->frmr.length));
+		sqe->numlevels_pbl_page_size_log =
+			((wqe->frmr.pbl_pg_sz_log <<
+					SQ_FR_PMR_PBL_PAGE_SIZE_LOG_SFT) &
+					SQ_FR_PMR_PBL_PAGE_SIZE_LOG_MASK) |
+			((wqe->frmr.levels << SQ_FR_PMR_NUMLEVELS_SFT) &
+					SQ_FR_PMR_NUMLEVELS_MASK);
+
+		for (i = 0; i < wqe->frmr.page_list_len; i++)
+			wqe->frmr.pbl_ptr[i] = cpu_to_le64(
+						wqe->frmr.page_list[i] |
+						PTU_PTE_VALID);
+		sqe->pblptr = cpu_to_le64(wqe->frmr.pbl_dma_ptr);
+		sqe->va = cpu_to_le64(wqe->frmr.va);
+
+		break;
+	}
+	case BNXT_QPLIB_SWQE_TYPE_BIND_MW:
+	{
+		struct sq_bind *sqe = (struct sq_bind *)hw_sq_send_hdr;
+
+		sqe->wqe_type = wqe->type;
+		sqe->flags = wqe->flags;
+		sqe->access_cntl = wqe->bind.access_cntl;
+		sqe->mw_type_zero_based = wqe->bind.mw_type |
+			(wqe->bind.zero_based ? SQ_BIND_ZERO_BASED : 0);
+		sqe->parent_l_key = cpu_to_le32(wqe->bind.parent_l_key);
+		sqe->l_key = cpu_to_le32(wqe->bind.r_key);
+		sqe->va = cpu_to_le64(wqe->bind.va);
+		temp32 = cpu_to_le32(wqe->bind.length);
+		memcpy(&sqe->length, &temp32, sizeof(wqe->bind.length));
+		break;
+	}
+	default:
+		/* Bad wqe, return error */
+		rc = -EINVAL;
+		goto done;
+	}
+	swq->next_psn = sq->psn & BTH_PSN_MASK;
+	if (swq->psn_search) {
+		swq->psn_search->opcode_start_psn = cpu_to_le32(
+			((swq->start_psn << SQ_PSN_SEARCH_START_PSN_SFT) &
+			 SQ_PSN_SEARCH_START_PSN_MASK) |
+			((wqe->type << SQ_PSN_SEARCH_OPCODE_SFT) &
+			 SQ_PSN_SEARCH_OPCODE_MASK));
+		swq->psn_search->flags_next_psn = cpu_to_le32(
+			((swq->next_psn << SQ_PSN_SEARCH_NEXT_PSN_SFT) &
+			 SQ_PSN_SEARCH_NEXT_PSN_MASK));
+	}
+
+	sq->hwq.prod++;
+done:
+	return rc;
+}
+
+void bnxt_qplib_post_recv_db(struct bnxt_qplib_qp *qp)
+{
+	struct bnxt_qplib_q *rq = &qp->rq;
+	struct dbr_dbr db_msg = { 0 };
+	u32 sw_prod;
+
+	sw_prod = HWQ_CMP(rq->hwq.prod, &rq->hwq);
+	db_msg.index = cpu_to_le32((sw_prod << DBR_DBR_INDEX_SFT) &
+				   DBR_DBR_INDEX_MASK);
+	db_msg.type_xid =
+		cpu_to_le32(((qp->id << DBR_DBR_XID_SFT) & DBR_DBR_XID_MASK) |
+			    DBR_DBR_TYPE_RQ);
+
+	/* Flush the writes to HW Rx WQE before the ringing Rx DB */
+	wmb();
+	__iowrite64_copy(qp->dpi->dbr, &db_msg, sizeof(db_msg) / sizeof(u64));
+}
+
+int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp,
+			 struct bnxt_qplib_swqe *wqe)
+{
+	struct bnxt_qplib_q *rq = &qp->rq;
+	struct rq_wqe *rqe, **rqe_ptr;
+	struct sq_sge *hw_sge;
+	u32 sw_prod;
+	int i, rc = 0;
+
+	if (qp->state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
+		dev_err(&rq->hwq.pdev->dev,
+			"QPLIB: FP: QP (0x%x) is in the 0x%x state",
+			qp->id, qp->state);
+		rc = -EINVAL;
+		goto done;
+	}
+	if (HWQ_CMP((rq->hwq.prod + 1), &rq->hwq) ==
+	    HWQ_CMP(rq->hwq.cons, &rq->hwq)) {
+		dev_err(&rq->hwq.pdev->dev,
+			"QPLIB: FP: QP (0x%x) RQ is full!", qp->id);
+		rc = -EINVAL;
+		goto done;
+	}
+	sw_prod = HWQ_CMP(rq->hwq.prod, &rq->hwq);
+	rq->swq[sw_prod].wr_id = wqe->wr_id;
+
+	rqe_ptr = (struct rq_wqe **)rq->hwq.pbl_ptr;
+	rqe = &rqe_ptr[RQE_PG(sw_prod)][RQE_IDX(sw_prod)];
+
+	memset(rqe, 0, BNXT_QPLIB_MAX_RQE_ENTRY_SIZE);
+
+	/* Calculate wqe_size16 and data_len */
+	for (i = 0, hw_sge = (struct sq_sge *)rqe->data;
+	     i < wqe->num_sge; i++, hw_sge++) {
+		hw_sge->va_or_pa = cpu_to_le64(wqe->sg_list[i].addr);
+		hw_sge->l_key = cpu_to_le32(wqe->sg_list[i].lkey);
+		hw_sge->size = cpu_to_le32(wqe->sg_list[i].size);
+	}
+	rqe->wqe_type = wqe->type;
+	rqe->flags = wqe->flags;
+	rqe->wqe_size = wqe->num_sge +
+			((offsetof(typeof(*rqe), data) + 15) >> 4);
+
+	/* Supply the rqe->wr_id index to the wr_id_tbl for now */
+	rqe->wr_id[0] = cpu_to_le32(sw_prod);
+
+	rq->hwq.prod++;
+done:
+	return rc;
+}
+
+/* CQ */
+
+/* Spinlock must be held */
+static void bnxt_qplib_arm_cq_enable(struct bnxt_qplib_cq *cq)
+{
+	struct dbr_dbr db_msg = { 0 };
+
+	db_msg.type_xid =
+		cpu_to_le32(((cq->id << DBR_DBR_XID_SFT) & DBR_DBR_XID_MASK) |
+			    DBR_DBR_TYPE_CQ_ARMENA);
+	/* Flush memory writes before enabling the CQ */
+	wmb();
+	__iowrite64_copy(cq->dbr_base, &db_msg, sizeof(db_msg) / sizeof(u64));
+}
+
+static void bnxt_qplib_arm_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
+{
+	struct bnxt_qplib_hwq *cq_hwq = &cq->hwq;
+	struct dbr_dbr db_msg = { 0 };
+	u32 sw_cons;
+
+	/* Ring DB */
+	sw_cons = HWQ_CMP(cq_hwq->cons, cq_hwq);
+	db_msg.index = cpu_to_le32((sw_cons << DBR_DBR_INDEX_SFT) &
+				    DBR_DBR_INDEX_MASK);
+	db_msg.type_xid =
+		cpu_to_le32(((cq->id << DBR_DBR_XID_SFT) & DBR_DBR_XID_MASK) |
+			    arm_type);
+	/* flush memory writes before arming the CQ */
+	wmb();
+	__iowrite64_copy(cq->dpi->dbr, &db_msg, sizeof(db_msg) / sizeof(u64));
+}
+
+int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
+{
+	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
+	struct cmdq_create_cq req;
+	struct creq_create_cq_resp *resp;
+	struct bnxt_qplib_pbl *pbl;
+	u16 cmd_flags = 0;
+	int rc;
+
+	cq->hwq.max_elements = cq->max_wqe;
+	rc = bnxt_qplib_alloc_init_hwq(res->pdev, &cq->hwq, cq->sghead,
+				       cq->nmap, &cq->hwq.max_elements,
+				       BNXT_QPLIB_MAX_CQE_ENTRY_SIZE, 0,
+				       PAGE_SIZE, HWQ_TYPE_QUEUE);
+	if (rc)
+		goto exit;
+
+	RCFW_CMD_PREP(req, CREATE_CQ, cmd_flags);
+
+	if (!cq->dpi) {
+		dev_err(&rcfw->pdev->dev,
+			"QPLIB: FP: CREATE_CQ failed due to NULL DPI");
+		return -EINVAL;
+	}
+	req.dpi = cpu_to_le32(cq->dpi->dpi);
+	req.cq_handle = cpu_to_le64(cq->cq_handle);
+
+	req.cq_size = cpu_to_le32(cq->hwq.max_elements);
+	pbl = &cq->hwq.pbl[PBL_LVL_0];
+	req.pg_size_lvl = cpu_to_le32(
+	    ((cq->hwq.level & CMDQ_CREATE_CQ_LVL_MASK) <<
+						CMDQ_CREATE_CQ_LVL_SFT) |
+	    (pbl->pg_size == ROCE_PG_SIZE_4K ? CMDQ_CREATE_CQ_PG_SIZE_PG_4K :
+	     pbl->pg_size == ROCE_PG_SIZE_8K ? CMDQ_CREATE_CQ_PG_SIZE_PG_8K :
+	     pbl->pg_size == ROCE_PG_SIZE_64K ? CMDQ_CREATE_CQ_PG_SIZE_PG_64K :
+	     pbl->pg_size == ROCE_PG_SIZE_2M ? CMDQ_CREATE_CQ_PG_SIZE_PG_2M :
+	     pbl->pg_size == ROCE_PG_SIZE_8M ? CMDQ_CREATE_CQ_PG_SIZE_PG_8M :
+	     pbl->pg_size == ROCE_PG_SIZE_1G ? CMDQ_CREATE_CQ_PG_SIZE_PG_1G :
+	     CMDQ_CREATE_CQ_PG_SIZE_PG_4K));
+
+	req.pbl = cpu_to_le64(pbl->pg_map_arr[0]);
+
+	req.cq_fco_cnq_id = cpu_to_le32(
+			(cq->cnq_hw_ring_id & CMDQ_CREATE_CQ_CNQ_ID_MASK) <<
+			 CMDQ_CREATE_CQ_CNQ_ID_SFT);
+
+	resp = (struct creq_create_cq_resp *)
+			bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+						     NULL, 0);
+	if (!resp) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_CQ send failed");
+		return -EINVAL;
+	}
+	if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
+		/* Cmd timed out */
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_CQ timed out");
+		rc = -ETIMEDOUT;
+		goto fail;
+	}
+	if (resp->status ||
+	    le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: CREATE_CQ failed ");
+		dev_err(&rcfw->pdev->dev,
+			"QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
+			resp->status, le16_to_cpu(req.cookie),
+			le16_to_cpu(resp->cookie));
+		rc = -EINVAL;
+		goto fail;
+	}
+	cq->id = le32_to_cpu(resp->xid);
+	cq->dbr_base = res->dpi_tbl.dbr_bar_reg_iomem;
+	cq->period = BNXT_QPLIB_QUEUE_START_PERIOD;
+	init_waitqueue_head(&cq->waitq);
+
+	bnxt_qplib_arm_cq_enable(cq);
+	return 0;
+
+fail:
+	bnxt_qplib_free_hwq(res->pdev, &cq->hwq);
+exit:
+	return rc;
+}
+
+int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
+{
+	struct bnxt_qplib_rcfw *rcfw = res->rcfw;
+	struct cmdq_destroy_cq req;
+	struct creq_destroy_cq_resp *resp;
+	u16 cmd_flags = 0;
+
+	RCFW_CMD_PREP(req, DESTROY_CQ, cmd_flags);
+
+	req.cq_cid = cpu_to_le32(cq->id);
+	resp = (struct creq_destroy_cq_resp *)
+			bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
+						     NULL, 0);
+	if (!resp) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_CQ send failed");
+		return -EINVAL;
+	}
+	if (!bnxt_qplib_rcfw_wait_for_resp(rcfw, le16_to_cpu(req.cookie))) {
+		/* Cmd timed out */
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_CQ timed out");
+		return -ETIMEDOUT;
+	}
+	if (resp->status ||
+	    le16_to_cpu(resp->cookie) != le16_to_cpu(req.cookie)) {
+		dev_err(&rcfw->pdev->dev, "QPLIB: FP: DESTROY_CQ failed ");
+		dev_err(&rcfw->pdev->dev,
+			"QPLIB: with status 0x%x cmdq 0x%x resp 0x%x",
+			resp->status, le16_to_cpu(req.cookie),
+			le16_to_cpu(resp->cookie));
+		return -EINVAL;
+	}
+	bnxt_qplib_free_hwq(res->pdev, &cq->hwq);
+	return 0;
+}
+
+static int __flush_sq(struct bnxt_qplib_q *sq, struct bnxt_qplib_qp *qp,
+		      struct bnxt_qplib_cqe **pcqe, int *budget)
+{
+	u32 sw_prod, sw_cons;
+	struct bnxt_qplib_cqe *cqe;
+	int rc = 0;
+
+	/* Now complete all outstanding SQEs with FLUSHED_ERR */
+	sw_prod = HWQ_CMP(sq->hwq.prod, &sq->hwq);
+	cqe = *pcqe;
+	while (*budget) {
+		sw_cons = HWQ_CMP(sq->hwq.cons, &sq->hwq);
+		if (sw_cons == sw_prod) {
+			sq->flush_in_progress = false;
+			break;
+		}
+		memset(cqe, 0, sizeof(*cqe));
+		cqe->status = CQ_REQ_STATUS_WORK_REQUEST_FLUSHED_ERR;
+		cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
+		cqe->qp_handle = (u64)(unsigned long)qp;
+		cqe->wr_id = sq->swq[sw_cons].wr_id;
+		cqe->src_qp = qp->id;
+		cqe->type = sq->swq[sw_cons].type;
+		cqe++;
+		(*budget)--;
+		sq->hwq.cons++;
+	}
+	*pcqe = cqe;
+	if (!(*budget) && HWQ_CMP(sq->hwq.cons, &sq->hwq) != sw_prod)
+		/* Out of budget */
+		rc = -EAGAIN;
+
+	return rc;
+}
+
+static int __flush_rq(struct bnxt_qplib_q *rq, struct bnxt_qplib_qp *qp,
+		      int opcode, struct bnxt_qplib_cqe **pcqe, int *budget)
+{
+	struct bnxt_qplib_cqe *cqe;
+	u32 sw_prod, sw_cons;
+	int rc = 0;
+
+	/* Flush the rest of the RQ */
+	sw_prod = HWQ_CMP(rq->hwq.prod, &rq->hwq);
+	cqe = *pcqe;
+	while (*budget) {
+		sw_cons = HWQ_CMP(rq->hwq.cons, &rq->hwq);
+		if (sw_cons == sw_prod)
+			break;
+		memset(cqe, 0, sizeof(*cqe));
+		cqe->status =
+		    CQ_RES_RC_STATUS_WORK_REQUEST_FLUSHED_ERR;
+		cqe->opcode = opcode;
+		cqe->qp_handle = (unsigned long)qp;
+		cqe->wr_id = rq->swq[sw_cons].wr_id;
+		cqe++;
+		(*budget)--;
+		rq->hwq.cons++;
+	}
+	*pcqe = cqe;
+	if (!*budget && HWQ_CMP(rq->hwq.cons, &rq->hwq) != sw_prod)
+		/* Out of budget */
+		rc = -EAGAIN;
+
+	return rc;
+}
+
+static int bnxt_qplib_cq_process_req(struct bnxt_qplib_cq *cq,
+				     struct cq_req *hwcqe,
+				     struct bnxt_qplib_cqe **pcqe, int *budget)
+{
+	struct bnxt_qplib_qp *qp;
+	struct bnxt_qplib_q *sq;
+	struct bnxt_qplib_cqe *cqe;
+	u32 sw_cons, cqe_cons;
+	int rc = 0;
+
+	qp = (struct bnxt_qplib_qp *)((unsigned long)
+				      le64_to_cpu(hwcqe->qp_handle));
+	if (!qp) {
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: FP: Process Req qp is NULL");
+		return -EINVAL;
+	}
+	sq = &qp->sq;
+
+	cqe_cons = HWQ_CMP(le16_to_cpu(hwcqe->sq_cons_idx), &sq->hwq);
+	if (cqe_cons > sq->hwq.max_elements) {
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: FP: CQ Process req reported ");
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: sq_cons_idx 0x%x which exceeded max 0x%x",
+			cqe_cons, sq->hwq.max_elements);
+		return -EINVAL;
+	}
+	/* If we were in the middle of flushing the SQ, continue */
+	if (sq->flush_in_progress)
+		goto flush;
+
+	/* Require to walk the sq's swq to fabricate CQEs for all previously
+	 * signaled SWQEs due to CQE aggregation from the current sq cons
+	 * to the cqe_cons
+	 */
+	cqe = *pcqe;
+	while (*budget) {
+		sw_cons = HWQ_CMP(sq->hwq.cons, &sq->hwq);
+		if (sw_cons == cqe_cons)
+			break;
+		memset(cqe, 0, sizeof(*cqe));
+		cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
+		cqe->qp_handle = (u64)(unsigned long)qp;
+		cqe->src_qp = qp->id;
+		cqe->wr_id = sq->swq[sw_cons].wr_id;
+		cqe->type = sq->swq[sw_cons].type;
+
+		/* For the last CQE, check for status.  For errors, regardless
+		 * of the request being signaled or not, it must complete with
+		 * the hwcqe error status
+		 */
+		if (HWQ_CMP((sw_cons + 1), &sq->hwq) == cqe_cons &&
+		    hwcqe->status != CQ_REQ_STATUS_OK) {
+			cqe->status = hwcqe->status;
+			dev_err(&cq->hwq.pdev->dev,
+				"QPLIB: FP: CQ Processed Req ");
+			dev_err(&cq->hwq.pdev->dev,
+				"QPLIB: wr_id[%d] = 0x%llx with status 0x%x",
+				sw_cons, cqe->wr_id, cqe->status);
+			cqe++;
+			(*budget)--;
+			sq->flush_in_progress = true;
+			/* Must block new posting of SQ and RQ */
+			qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
+		} else {
+			if (sq->swq[sw_cons].flags &
+			    SQ_SEND_FLAGS_SIGNAL_COMP) {
+				cqe->status = CQ_REQ_STATUS_OK;
+				cqe++;
+				(*budget)--;
+			}
+		}
+		sq->hwq.cons++;
+	}
+	*pcqe = cqe;
+	if (!*budget && HWQ_CMP(sq->hwq.cons, &sq->hwq) != cqe_cons) {
+		/* Out of budget */
+		rc = -EAGAIN;
+		goto done;
+	}
+	if (!sq->flush_in_progress)
+		goto done;
+flush:
+	/* Require to walk the sq's swq to fabricate CQEs for all
+	 * previously posted SWQEs due to the error CQE received
+	 */
+	rc = __flush_sq(sq, qp, pcqe, budget);
+	if (!rc)
+		sq->flush_in_progress = false;
+done:
+	return rc;
+}
+
+static int bnxt_qplib_cq_process_res_rc(struct bnxt_qplib_cq *cq,
+					struct cq_res_rc *hwcqe,
+					struct bnxt_qplib_cqe **pcqe,
+					int *budget)
+{
+	struct bnxt_qplib_qp *qp;
+	struct bnxt_qplib_q *rq;
+	struct bnxt_qplib_cqe *cqe;
+	u32 wr_id_idx;
+	int rc = 0;
+
+	qp = (struct bnxt_qplib_qp *)((unsigned long)
+				      le64_to_cpu(hwcqe->qp_handle));
+	if (!qp) {
+		dev_err(&cq->hwq.pdev->dev, "QPLIB: process_cq RC qp is NULL");
+		return -EINVAL;
+	}
+	cqe = *pcqe;
+	cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
+	cqe->length = le32_to_cpu(hwcqe->length);
+	cqe->invrkey = le32_to_cpu(hwcqe->imm_data_or_inv_r_key);
+	cqe->mr_handle = le64_to_cpu(hwcqe->mr_handle);
+	cqe->flags = le16_to_cpu(hwcqe->flags);
+	cqe->status = hwcqe->status;
+	cqe->qp_handle = (u64)(unsigned long)qp;
+
+	wr_id_idx = le32_to_cpu(hwcqe->srq_or_rq_wr_id) &
+				CQ_RES_RC_SRQ_OR_RQ_WR_ID_MASK;
+	rq = &qp->rq;
+	if (wr_id_idx > rq->hwq.max_elements) {
+		dev_err(&cq->hwq.pdev->dev, "QPLIB: FP: CQ Process RC ");
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: wr_id idx 0x%x exceeded RQ max 0x%x",
+			wr_id_idx, rq->hwq.max_elements);
+		return -EINVAL;
+	}
+	if (rq->flush_in_progress)
+		goto flush_rq;
+
+	cqe->wr_id = rq->swq[wr_id_idx].wr_id;
+	cqe++;
+	(*budget)--;
+	rq->hwq.cons++;
+	*pcqe = cqe;
+
+	if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
+		rq->flush_in_progress = true;
+flush_rq:
+		rc = __flush_rq(rq, qp, CQ_BASE_CQE_TYPE_RES_RC, pcqe, budget);
+		if (!rc)
+			rq->flush_in_progress = false;
+	}
+	return rc;
+}
+
+static int bnxt_qplib_cq_process_res_ud(struct bnxt_qplib_cq *cq,
+					struct cq_res_ud *hwcqe,
+					struct bnxt_qplib_cqe **pcqe,
+					int *budget)
+{
+	struct bnxt_qplib_qp *qp;
+	struct bnxt_qplib_q *rq;
+	struct bnxt_qplib_cqe *cqe;
+	u32 wr_id_idx;
+	int rc = 0;
+
+	qp = (struct bnxt_qplib_qp *)((unsigned long)
+				      le64_to_cpu(hwcqe->qp_handle));
+	if (!qp) {
+		dev_err(&cq->hwq.pdev->dev, "QPLIB: process_cq UD qp is NULL");
+		return -EINVAL;
+	}
+	cqe = *pcqe;
+	cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
+	cqe->length = le32_to_cpu(hwcqe->length);
+	cqe->invrkey = le32_to_cpu(hwcqe->imm_data);
+	cqe->flags = le16_to_cpu(hwcqe->flags);
+	cqe->status = hwcqe->status;
+	cqe->qp_handle = (u64)(unsigned long)qp;
+	memcpy(cqe->smac, hwcqe->src_mac, 6);
+	wr_id_idx = le32_to_cpu(hwcqe->src_qp_high_srq_or_rq_wr_id)
+				& CQ_RES_UD_SRQ_OR_RQ_WR_ID_MASK;
+	cqe->src_qp = le16_to_cpu(hwcqe->src_qp_low) |
+				  ((le32_to_cpu(
+				  hwcqe->src_qp_high_srq_or_rq_wr_id) &
+				 CQ_RES_UD_SRC_QP_HIGH_MASK) >> 8);
+
+	rq = &qp->rq;
+	if (wr_id_idx > rq->hwq.max_elements) {
+		dev_err(&cq->hwq.pdev->dev, "QPLIB: FP: CQ Process UD ");
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: wr_id idx %#x exceeded RQ max %#x",
+			wr_id_idx, rq->hwq.max_elements);
+		return -EINVAL;
+	}
+	if (rq->flush_in_progress)
+		goto flush_rq;
+
+	cqe->wr_id = rq->swq[wr_id_idx].wr_id;
+	cqe++;
+	(*budget)--;
+	rq->hwq.cons++;
+	*pcqe = cqe;
+
+	if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
+		rq->flush_in_progress = true;
+flush_rq:
+		rc = __flush_rq(rq, qp, CQ_BASE_CQE_TYPE_RES_UD, pcqe, budget);
+		if (!rc)
+			rq->flush_in_progress = false;
+	}
+	return rc;
+}
+
+static int bnxt_qplib_cq_process_res_raweth_qp1(struct bnxt_qplib_cq *cq,
+						struct cq_res_raweth_qp1 *hwcqe,
+						struct bnxt_qplib_cqe **pcqe,
+						int *budget)
+{
+	struct bnxt_qplib_qp *qp;
+	struct bnxt_qplib_q *rq;
+	struct bnxt_qplib_cqe *cqe;
+	u32 wr_id_idx;
+	int rc = 0;
+
+	qp = (struct bnxt_qplib_qp *)((unsigned long)
+				      le64_to_cpu(hwcqe->qp_handle));
+	if (!qp) {
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: process_cq Raw/QP1 qp is NULL");
+		return -EINVAL;
+	}
+	cqe = *pcqe;
+	cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
+	cqe->flags = le16_to_cpu(hwcqe->flags);
+	cqe->qp_handle = (u64)(unsigned long)qp;
+
+	wr_id_idx =
+		le32_to_cpu(hwcqe->raweth_qp1_payload_offset_srq_or_rq_wr_id)
+				& CQ_RES_RAWETH_QP1_SRQ_OR_RQ_WR_ID_MASK;
+	cqe->src_qp = qp->id;
+	if (qp->id == 1 && !cqe->length) {
+		/* Add workaround for the length misdetection */
+		cqe->length = 296;
+	} else {
+		cqe->length = le16_to_cpu(hwcqe->length);
+	}
+	cqe->pkey_index = qp->pkey_index;
+	memcpy(cqe->smac, qp->smac, 6);
+
+	cqe->raweth_qp1_flags = le16_to_cpu(hwcqe->raweth_qp1_flags);
+	cqe->raweth_qp1_flags2 = le32_to_cpu(hwcqe->raweth_qp1_flags2);
+
+	rq = &qp->rq;
+	if (wr_id_idx > rq->hwq.max_elements) {
+		dev_err(&cq->hwq.pdev->dev, "QPLIB: FP: CQ Process Raw/QP1 RQ wr_id ");
+		dev_err(&cq->hwq.pdev->dev, "QPLIB: ix 0x%x exceeded RQ max 0x%x",
+			wr_id_idx, rq->hwq.max_elements);
+		return -EINVAL;
+	}
+	if (rq->flush_in_progress)
+		goto flush_rq;
+
+	cqe->wr_id = rq->swq[wr_id_idx].wr_id;
+	cqe++;
+	(*budget)--;
+	rq->hwq.cons++;
+	*pcqe = cqe;
+
+	if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
+		rq->flush_in_progress = true;
+flush_rq:
+		rc = __flush_rq(rq, qp, CQ_BASE_CQE_TYPE_RES_RAWETH_QP1, pcqe,
+				budget);
+		if (!rc)
+			rq->flush_in_progress = false;
+	}
+	return rc;
+}
+
+static int bnxt_qplib_cq_process_terminal(struct bnxt_qplib_cq *cq,
+					  struct cq_terminal *hwcqe,
+					  struct bnxt_qplib_cqe **pcqe,
+					  int *budget)
+{
+	struct bnxt_qplib_qp *qp;
+	struct bnxt_qplib_q *sq, *rq;
+	struct bnxt_qplib_cqe *cqe;
+	u32 sw_cons = 0, cqe_cons;
+	int rc = 0;
+	u8 opcode = 0;
+
+	/* Check the Status */
+	if (hwcqe->status != CQ_TERMINAL_STATUS_OK)
+		dev_warn(&cq->hwq.pdev->dev,
+			 "QPLIB: FP: CQ Process Terminal Error status = 0x%x",
+			 hwcqe->status);
+
+	qp = (struct bnxt_qplib_qp *)((unsigned long)
+				      le64_to_cpu(hwcqe->qp_handle));
+	if (!qp) {
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: FP: CQ Process terminal qp is NULL");
+		return -EINVAL;
+	}
+	/* Must block new posting of SQ and RQ */
+	qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
+
+	sq = &qp->sq;
+	rq = &qp->rq;
+
+	cqe_cons = le16_to_cpu(hwcqe->sq_cons_idx);
+	if (cqe_cons == 0xFFFF)
+		goto do_rq;
+
+	if (cqe_cons > sq->hwq.max_elements) {
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: FP: CQ Process terminal reported ");
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: sq_cons_idx 0x%x which exceeded max 0x%x",
+			cqe_cons, sq->hwq.max_elements);
+		goto do_rq;
+	}
+	/* If we were in the middle of flushing, continue */
+	if (sq->flush_in_progress)
+		goto flush_sq;
+
+	/* Terminal CQE can also include aggregated successful CQEs prior.
+	 * So we must complete all CQEs from the current sq's cons to the
+	 * cq_cons with status OK
+	 */
+	cqe = *pcqe;
+	while (*budget) {
+		sw_cons = HWQ_CMP(sq->hwq.cons, &sq->hwq);
+		if (sw_cons == cqe_cons)
+			break;
+		if (sq->swq[sw_cons].flags & SQ_SEND_FLAGS_SIGNAL_COMP) {
+			memset(cqe, 0, sizeof(*cqe));
+			cqe->status = CQ_REQ_STATUS_OK;
+			cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
+			cqe->qp_handle = (u64)(unsigned long)qp;
+			cqe->src_qp = qp->id;
+			cqe->wr_id = sq->swq[sw_cons].wr_id;
+			cqe->type = sq->swq[sw_cons].type;
+			cqe++;
+			(*budget)--;
+		}
+		sq->hwq.cons++;
+	}
+	*pcqe = cqe;
+	if (!(*budget) && sw_cons != cqe_cons) {
+		/* Out of budget */
+		rc = -EAGAIN;
+		goto sq_done;
+	}
+	sq->flush_in_progress = true;
+flush_sq:
+	rc = __flush_sq(sq, qp, pcqe, budget);
+	if (!rc)
+		sq->flush_in_progress = false;
+sq_done:
+	if (rc)
+		return rc;
+do_rq:
+	cqe_cons = le16_to_cpu(hwcqe->rq_cons_idx);
+	if (cqe_cons == 0xFFFF) {
+		goto done;
+	} else if (cqe_cons > rq->hwq.max_elements) {
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: FP: CQ Processed terminal ");
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: reported rq_cons_idx 0x%x exceeds max 0x%x",
+			cqe_cons, rq->hwq.max_elements);
+		goto done;
+	}
+	/* Terminal CQE requires all posted RQEs to complete with FLUSHED_ERR
+	 * from the current rq->cons to the rq->prod regardless what the
+	 * rq->cons the terminal CQE indicates
+	 */
+	rq->flush_in_progress = true;
+	switch (qp->type) {
+	case CMDQ_CREATE_QP1_TYPE_GSI:
+		opcode = CQ_BASE_CQE_TYPE_RES_RAWETH_QP1;
+		break;
+	case CMDQ_CREATE_QP_TYPE_RC:
+		opcode = CQ_BASE_CQE_TYPE_RES_RC;
+		break;
+	case CMDQ_CREATE_QP_TYPE_UD:
+		opcode = CQ_BASE_CQE_TYPE_RES_UD;
+		break;
+	}
+
+	rc = __flush_rq(rq, qp, opcode, pcqe, budget);
+	if (!rc)
+		rq->flush_in_progress = false;
+done:
+	return rc;
+}
+
+static int bnxt_qplib_cq_process_cutoff(struct bnxt_qplib_cq *cq,
+					struct cq_cutoff *hwcqe)
+{
+	/* Check the Status */
+	if (hwcqe->status != CQ_CUTOFF_STATUS_OK) {
+		dev_err(&cq->hwq.pdev->dev,
+			"QPLIB: FP: CQ Process Cutoff Error status = 0x%x",
+			hwcqe->status);
+		return -EINVAL;
+	}
+	clear_bit(CQ_FLAGS_RESIZE_IN_PROG, &cq->flags);
+	wake_up_interruptible(&cq->waitq);
+
+	return 0;
+}
+
+int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
+		       int num_cqes)
+{
+	struct cq_base *hw_cqe, **hw_cqe_ptr;
+	unsigned long flags;
+	u32 sw_cons, raw_cons;
+	int budget, rc = 0;
+
+	spin_lock_irqsave(&cq->hwq.lock, flags);
+	raw_cons = cq->hwq.cons;
+	budget = num_cqes;
+
+	while (budget) {
+		sw_cons = HWQ_CMP(raw_cons, &cq->hwq);
+		hw_cqe_ptr = (struct cq_base **)cq->hwq.pbl_ptr;
+		hw_cqe = &hw_cqe_ptr[CQE_PG(sw_cons)][CQE_IDX(sw_cons)];
+
+		/* Check for Valid bit */
+		if (!CQE_CMP_VALID(hw_cqe, raw_cons, cq->hwq.max_elements))
+			break;
+
+		/* From the device's respective CQE format to qplib_wc*/
+		switch (hw_cqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK) {
+		case CQ_BASE_CQE_TYPE_REQ:
+			rc = bnxt_qplib_cq_process_req(cq,
+						       (struct cq_req *)hw_cqe,
+						       &cqe, &budget);
+			break;
+		case CQ_BASE_CQE_TYPE_RES_RC:
+			rc = bnxt_qplib_cq_process_res_rc(cq,
+							  (struct cq_res_rc *)
+							  hw_cqe, &cqe,
+							  &budget);
+			break;
+		case CQ_BASE_CQE_TYPE_RES_UD:
+			rc = bnxt_qplib_cq_process_res_ud
+					(cq, (struct cq_res_ud *)hw_cqe, &cqe,
+					 &budget);
+			break;
+		case CQ_BASE_CQE_TYPE_RES_RAWETH_QP1:
+			rc = bnxt_qplib_cq_process_res_raweth_qp1
+					(cq, (struct cq_res_raweth_qp1 *)
+					 hw_cqe, &cqe, &budget);
+			break;
+		case CQ_BASE_CQE_TYPE_TERMINAL:
+			rc = bnxt_qplib_cq_process_terminal
+					(cq, (struct cq_terminal *)hw_cqe,
+					 &cqe, &budget);
+			break;
+		case CQ_BASE_CQE_TYPE_CUT_OFF:
+			bnxt_qplib_cq_process_cutoff
+					(cq, (struct cq_cutoff *)hw_cqe);
+			/* Done processing this CQ */
+			goto exit;
+		default:
+			dev_err(&cq->hwq.pdev->dev,
+				"QPLIB: process_cq unknown type 0x%lx",
+				hw_cqe->cqe_type_toggle &
+				CQ_BASE_CQE_TYPE_MASK);
+			rc = -EINVAL;
+			break;
+		}
+		if (rc < 0) {
+			if (rc == -EAGAIN)
+				break;
+			/* Error while processing the CQE, just skip to the
+			 * next one
+			 */
+			dev_err(&cq->hwq.pdev->dev,
+				"QPLIB: process_cqe error rc = 0x%x", rc);
+		}
+		raw_cons++;
+	}
+	if (cq->hwq.cons != raw_cons) {
+		cq->hwq.cons = raw_cons;
+		bnxt_qplib_arm_cq(cq, DBR_DBR_TYPE_CQ);
+	}
+exit:
+	spin_unlock_irqrestore(&cq->hwq.lock, flags);
+	return num_cqes - budget;
+}
+
+void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&cq->hwq.lock, flags);
+	if (arm_type)
+		bnxt_qplib_arm_cq(cq, arm_type);
+
+	spin_unlock_irqrestore(&cq->hwq.lock, flags);
+}