/*-
 * SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
 *
 * Copyright (c) 2015 - 2026 Intel Corporation
 *
 * 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
 * OpenFabrics.org BSD license below:
 *
 *   Redistribution and use in source and binary forms, with or
 *   without modification, are permitted provided that the following
 *   conditions are met:
 *
 *    - Redistributions of source code must retain the above
 *      copyright notice, this list of conditions and the following
 *      disclaimer.
 *
 *    - Redistributions in binary form must reproduce the above
 *      copyright notice, this list of conditions and the following
 *      disclaimer in the documentation and/or other materials
 *      provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include "irdma_main.h"

static struct irdma_rsrc_limits rsrc_limits_table[] = {
        [0] = {
                .qplimit = SZ_128,
        },
        [1] = {
                .qplimit = SZ_1K,
        },
        [2] = {
                .qplimit = SZ_2K,
        },
        [3] = {
                .qplimit = SZ_4K,
        },
        [4] = {
                .qplimit = SZ_16K,
        },
        [5] = {
                .qplimit = SZ_64K,
        },
        [6] = {
                .qplimit = SZ_128K,
        },
        [7] = {
                .qplimit = SZ_256K,
        },
};

/* types of hmc objects */
static enum irdma_hmc_rsrc_type iw_hmc_obj_types[] = {
        IRDMA_HMC_IW_QP,
        IRDMA_HMC_IW_CQ,
        IRDMA_HMC_IW_HTE,
        IRDMA_HMC_IW_ARP,
        IRDMA_HMC_IW_APBVT_ENTRY,
        IRDMA_HMC_IW_MR,
        IRDMA_HMC_IW_XF,
        IRDMA_HMC_IW_XFFL,
        IRDMA_HMC_IW_Q1,
        IRDMA_HMC_IW_Q1FL,
        IRDMA_HMC_IW_PBLE,
        IRDMA_HMC_IW_TIMER,
        IRDMA_HMC_IW_FSIMC,
        IRDMA_HMC_IW_FSIAV,
        IRDMA_HMC_IW_RRF,
        IRDMA_HMC_IW_RRFFL,
        IRDMA_HMC_IW_HDR,
        IRDMA_HMC_IW_MD,
        IRDMA_HMC_IW_OOISC,
        IRDMA_HMC_IW_OOISCFFL,
};

/**
 * irdma_iwarp_ce_handler - handle iwarp completions
 * @iwcq: iwarp cq receiving event
 */
static void
irdma_iwarp_ce_handler(struct irdma_sc_cq *iwcq)
{
        struct irdma_cq *cq = iwcq->back_cq;

        if (!cq->user_mode)
                atomic_set(&cq->armed, 0);
        if (cq->ibcq.comp_handler)
                cq->ibcq.comp_handler(&cq->ibcq, cq->ibcq.cq_context);
}

/**
 * irdma_puda_ce_handler - handle puda completion events
 * @rf: RDMA PCI function
 * @cq: puda completion q for event
 */
static void
irdma_puda_ce_handler(struct irdma_pci_f *rf,
                      struct irdma_sc_cq *cq)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        u32 compl_error;
        int status;

        do {
                status = irdma_puda_poll_cmpl(dev, cq, &compl_error);
                if (status == -ENOENT)
                        break;
                if (status) {
                        irdma_debug(dev, IRDMA_DEBUG_ERR, "puda status = %d\n", status);
                        break;
                }
                if (compl_error) {
                        irdma_debug(dev, IRDMA_DEBUG_ERR,
                                    "puda compl_err = 0x%x\n", compl_error);
                        break;
                }
        } while (1);

        irdma_sc_ccq_arm(cq);
}

/**
 * irdma_process_ceq - handle ceq for completions
 * @rf: RDMA PCI function
 * @ceq: ceq having cq for completion
 */
static void
irdma_process_ceq(struct irdma_pci_f *rf, struct irdma_ceq *ceq)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_sc_ceq *sc_ceq;
        struct irdma_sc_cq *cq;
        unsigned long flags;

        sc_ceq = &ceq->sc_ceq;
        do {
                spin_lock_irqsave(&ceq->ce_lock, flags);

                cq = irdma_sc_process_ceq(dev, sc_ceq);
                if (!cq || rf->reset) {
                        spin_unlock_irqrestore(&ceq->ce_lock, flags);
                        break;
                }

                if (cq->cq_type == IRDMA_CQ_TYPE_IWARP)
                        irdma_iwarp_ce_handler(cq);

                spin_unlock_irqrestore(&ceq->ce_lock, flags);

                if (cq->cq_type == IRDMA_CQ_TYPE_CQP)
                        queue_work(rf->cqp_cmpl_wq, &rf->cqp_cmpl_work);
                else if (cq->cq_type == IRDMA_CQ_TYPE_ILQ ||
                         cq->cq_type == IRDMA_CQ_TYPE_IEQ)
                        irdma_puda_ce_handler(rf, cq);
        } while (1);
}

static void
irdma_set_flush_fields(struct irdma_sc_qp *qp,
                       struct irdma_aeqe_info *info)
{
        struct qp_err_code qp_err;

        qp->sq_flush_code = info->sq;
        qp->rq_flush_code = info->rq;
        qp_err = irdma_ae_to_qp_err_code(info->ae_id);

        qp->flush_code = qp_err.flush_code;
        qp->event_type = qp_err.event_type;
}

/**
 * irdma_complete_cqp_request - perform post-completion cleanup
 * @cqp: device CQP
 * @cqp_request: CQP request
 *
 * Mark CQP request as done, wake up waiting thread or invoke
 * callback function and release/free CQP request.
 */
static void
irdma_complete_cqp_request(struct irdma_cqp *cqp,
                           struct irdma_cqp_request *cqp_request)
{
        WRITE_ONCE(cqp_request->request_done, true);
        if (cqp_request->waiting)
                wake_up(&cqp_request->waitq);
        else if (cqp_request->callback_fcn)
                cqp_request->callback_fcn(cqp_request);
        irdma_put_cqp_request(cqp, cqp_request);
}

/**
 * irdma_process_aeq - handle aeq events
 * @rf: RDMA PCI function
 *
 * Return: True if an AE was processed.
 */
static bool
irdma_process_aeq(struct irdma_pci_f *rf)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_aeq *aeq = &rf->aeq;
        struct irdma_sc_aeq *sc_aeq = &aeq->sc_aeq;
        struct irdma_aeqe_info aeinfo;
        struct irdma_aeqe_info *info = &aeinfo;
        int ret;
        struct irdma_qp *iwqp = NULL;
        struct irdma_cq *iwcq = NULL;
        struct irdma_sc_qp *qp = NULL;
        struct irdma_device *iwdev = rf->iwdev;
        struct irdma_qp_host_ctx_info *ctx_info = NULL;
        unsigned long flags;
        u32 aeqcnt = 0;

        if (!sc_aeq->size)
                return false;

        do {
                memset(info, 0, sizeof(*info));
                ret = irdma_sc_get_next_aeqe(sc_aeq, info);
                if (ret)
                        break;

                if (info->aeqe_overflow) {
                        irdma_dev_err(&iwdev->ibdev, "AEQ has overflowed\n");
                        rf->reset = true;
                        rf->gen_ops.request_reset(rf);
                        return (aeqcnt > 0);
                }

                aeqcnt++;
                atomic_inc(&iwdev->ae_info.ae_cnt);

                irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_AEQ,
                            "ae_id = 0x%x (%s), is_qp = %d, qp_id = %d, tcp_state = %d, iwarp_state = %d, ae_src = %d\n",
                            info->ae_id, irdma_get_ae_desc(info->ae_id),
                            info->qp, info->qp_cq_id, info->tcp_state,
                            info->iwarp_state, info->ae_src);

                if (info->qp) {
                        spin_lock_irqsave(&rf->qptable_lock, flags);
                        iwqp = rf->qp_table[info->qp_cq_id];
                        if (!iwqp) {
                                spin_unlock_irqrestore(&rf->qptable_lock,
                                                       flags);
                                if (info->ae_id == IRDMA_AE_QP_SUSPEND_COMPLETE) {
                                        struct irdma_device *iwdev = rf->iwdev;

                                        if (!iwdev->vsi.tc_change_pending)
                                                continue;

                                        atomic_dec(&iwdev->vsi.qp_suspend_reqs);
                                        wake_up(&iwdev->suspend_wq);
                                        continue;
                                }
                                irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_AEQ,
                                            "qp_id %d is already freed\n",
                                            info->qp_cq_id);
                                continue;
                        }
                        irdma_qp_add_ref(&iwqp->ibqp);
                        spin_unlock_irqrestore(&rf->qptable_lock, flags);
                        qp = &iwqp->sc_qp;
                        spin_lock_irqsave(&iwqp->lock, flags);
                        iwqp->hw_tcp_state = info->tcp_state;
                        iwqp->hw_iwarp_state = info->iwarp_state;

                        if (info->ae_id != IRDMA_AE_QP_SUSPEND_COMPLETE) {
                                iwqp->last_aeq = info->ae_id;
                                iwqp->ae_src = info->ae_src;
                        }

                        spin_unlock_irqrestore(&iwqp->lock, flags);
                        ctx_info = &iwqp->ctx_info;
                } else {
                        if (info->ae_id != IRDMA_AE_CQ_OPERATION_ERROR)
                                continue;
                }

                switch (info->ae_id) {
                        struct irdma_cm_node *cm_node;

                case IRDMA_AE_LLP_CONNECTION_ESTABLISHED:
                        cm_node = iwqp->cm_node;
                        if (cm_node->accept_pend) {
                                atomic_dec(&cm_node->listener->pend_accepts_cnt);
                                cm_node->accept_pend = 0;
                        }
                        iwqp->rts_ae_rcvd = 1;
                        wake_up_interruptible(&iwqp->waitq);
                        break;
                case IRDMA_AE_LLP_FIN_RECEIVED:
                        if (qp->term_flags)
                                break;
                        if (atomic_inc_return(&iwqp->close_timer_started) == 1) {
                                iwqp->hw_tcp_state = IRDMA_TCP_STATE_CLOSE_WAIT;
                                if (iwqp->ibqp_state == IB_QPS_RTS) {
                                        irdma_next_iw_state(iwqp,
                                                            IRDMA_QP_STATE_CLOSING,
                                                            0, 0, 0);
                                        irdma_cm_disconn(iwqp);
                                }
                                irdma_schedule_cm_timer(iwqp->cm_node,
                                                        (struct irdma_puda_buf *)iwqp,
                                                        IRDMA_TIMER_TYPE_CLOSE,
                                                        1, 0);
                        }
                        break;
                case IRDMA_AE_LLP_CLOSE_COMPLETE:
                        if (qp->term_flags)
                                irdma_terminate_done(qp, 0);
                        else
                                irdma_cm_disconn(iwqp);
                        break;
                case IRDMA_AE_BAD_CLOSE:
                case IRDMA_AE_RESET_SENT:
                        irdma_next_iw_state(iwqp, IRDMA_QP_STATE_ERROR, 1, 0,
                                            0);
                        irdma_cm_disconn(iwqp);
                        break;
                case IRDMA_AE_LLP_CONNECTION_RESET:
                        if (atomic_read(&iwqp->close_timer_started))
                                break;
                        irdma_cm_disconn(iwqp);
                        break;
                case IRDMA_AE_QP_SUSPEND_COMPLETE:
                        if (iwqp->iwdev->vsi.tc_change_pending) {
                                if (!atomic_dec_return(&iwqp->sc_qp.vsi->qp_suspend_reqs))
                                        wake_up(&iwqp->iwdev->suspend_wq);
                        }
                        if (iwqp->suspend_pending) {
                                iwqp->suspend_pending = false;
                                wake_up(&iwqp->iwdev->suspend_wq);
                        }
                        break;
                case IRDMA_AE_TERMINATE_SENT:
                        irdma_terminate_send_fin(qp);
                        break;
                case IRDMA_AE_LLP_TERMINATE_RECEIVED:
                        irdma_terminate_received(qp, info);
                        break;
                case IRDMA_AE_LCE_CQ_CATASTROPHIC:
                case IRDMA_AE_CQ_OPERATION_ERROR:
                        irdma_dev_err(&iwdev->ibdev,
                                      "Processing CQ[0x%x] op error, AE 0x%04X\n",
                                      info->qp_cq_id, info->ae_id);
                        spin_lock_irqsave(&rf->cqtable_lock, flags);
                        iwcq = rf->cq_table[info->qp_cq_id];
                        if (!iwcq) {
                                spin_unlock_irqrestore(&rf->cqtable_lock,
                                                       flags);
                                irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_AEQ,
                                            "cq_id %d is already freed\n",
                                            info->qp_cq_id);
                                continue;
                        }
                        irdma_cq_add_ref(&iwcq->ibcq);
                        spin_unlock_irqrestore(&rf->cqtable_lock, flags);
                        if (iwcq->ibcq.event_handler) {
                                struct ib_event ibevent;

                                ibevent.device = iwcq->ibcq.device;
                                ibevent.event = IB_EVENT_CQ_ERR;
                                ibevent.element.cq = &iwcq->ibcq;
                                iwcq->ibcq.event_handler(&ibevent,
                                                         iwcq->ibcq.cq_context);
                        }
                        irdma_cq_rem_ref(&iwcq->ibcq);
                        break;
                case IRDMA_AE_RESET_NOT_SENT:
                case IRDMA_AE_LLP_DOUBT_REACHABILITY:
                        break;
                case IRDMA_AE_RESOURCE_EXHAUSTION:
                        irdma_dev_err(&iwdev->ibdev,
                                      "Resource exhaustion reason: q1 = %d xmit or rreq = %d\n",
                                      info->ae_src == IRDMA_AE_SOURCE_RSRC_EXHT_Q1,
                                      info->ae_src == IRDMA_AE_SOURCE_RSRC_EXHT_XT_RR);
                        break;
                case IRDMA_AE_PRIV_OPERATION_DENIED:
                case IRDMA_AE_RDMAP_ROE_BAD_LLP_CLOSE:
                case IRDMA_AE_STAG_ZERO_INVALID:
                case IRDMA_AE_IB_RREQ_AND_Q1_FULL:
                case IRDMA_AE_DDP_UBE_INVALID_DDP_VERSION:
                case IRDMA_AE_DDP_UBE_INVALID_MO:
                case IRDMA_AE_DDP_UBE_INVALID_QN:
                case IRDMA_AE_DDP_NO_L_BIT:
                case IRDMA_AE_RDMAP_ROE_INVALID_RDMAP_VERSION:
                case IRDMA_AE_RDMAP_ROE_UNEXPECTED_OPCODE:
                case IRDMA_AE_ROE_INVALID_RDMA_READ_REQUEST:
                case IRDMA_AE_ROE_INVALID_RDMA_WRITE_OR_READ_RESP:
                case IRDMA_AE_INVALID_ARP_ENTRY:
                case IRDMA_AE_INVALID_TCP_OPTION_RCVD:
                case IRDMA_AE_STALE_ARP_ENTRY:
                case IRDMA_AE_LLP_RECEIVED_MPA_CRC_ERROR:
                case IRDMA_AE_LLP_SEGMENT_TOO_SMALL:
                case IRDMA_AE_LLP_SYN_RECEIVED:
                case IRDMA_AE_LLP_TOO_MANY_RETRIES:
                case IRDMA_AE_LCE_QP_CATASTROPHIC:
                case IRDMA_AE_LCE_FUNCTION_CATASTROPHIC:
                case IRDMA_AE_LLP_TOO_MANY_RNRS:
                case IRDMA_AE_UDA_XMIT_DGRAM_TOO_LONG:
                default:
                        if (rdma_protocol_roce(&iwqp->iwdev->ibdev, 1)) {
                                ctx_info->roce_info->err_rq_idx_valid = info->err_rq_idx_valid;
                                if (info->rq) {
                                        ctx_info->roce_info->err_rq_idx = info->wqe_idx;
                                        irdma_sc_qp_setctx_roce(&iwqp->sc_qp, iwqp->host_ctx.va,
                                                                ctx_info);
                                }
                                irdma_set_flush_fields(qp, info);
                                irdma_cm_disconn(iwqp);
                                break;
                        }
                        ctx_info->iwarp_info->err_rq_idx_valid = info->err_rq_idx_valid;
                        if (info->rq) {
                                ctx_info->iwarp_info->err_rq_idx = info->wqe_idx;
                                ctx_info->tcp_info_valid = false;
                                ctx_info->iwarp_info_valid = true;
                                irdma_sc_qp_setctx(&iwqp->sc_qp, iwqp->host_ctx.va,
                                                   ctx_info);
                        }
                        if (iwqp->hw_iwarp_state != IRDMA_QP_STATE_RTS &&
                            iwqp->hw_iwarp_state != IRDMA_QP_STATE_TERMINATE) {
                                irdma_next_iw_state(iwqp, IRDMA_QP_STATE_ERROR, 1, 0, 0);
                                irdma_cm_disconn(iwqp);
                        } else {
                                irdma_terminate_connection(qp, info);
                        }
                        break;
                }
                if (info->qp)
                        irdma_qp_rem_ref(&iwqp->ibqp);
        } while (1);

        if (aeqcnt)
                irdma_sc_repost_aeq_entries(dev, aeqcnt);

        return (aeqcnt > 0);
}

/**
 * irdma_ena_intr - set up device interrupts
 * @dev: hardware control device structure
 * @msix_id: id of the interrupt to be enabled
 */
static void
irdma_ena_intr(struct irdma_sc_dev *dev, u32 msix_id)
{
        dev->irq_ops->irdma_en_irq(dev, msix_id);
}

/**
 * irdma_aeq_ceq0_tasklet_cb - tasklet for aeq and ceq 0
 * @t: tasklet_struct ptr
 */
static void
irdma_aeq_ceq0_tasklet_cb(unsigned long t)
{
        struct irdma_pci_f *rf = from_tasklet(rf, (struct tasklet_struct *)t,
                                              dpc_tasklet);

        if (rf->msix_shared)
                irdma_process_ceq(rf, rf->ceqlist);
        irdma_process_aeq(rf);
        irdma_ena_intr(&rf->sc_dev, rf->iw_msixtbl[0].idx);
}

/**
 * irdma_ceq_tasklet_cb - tasklet handler for CEQ
 * @t: tasklet_struct ptr
 */
static void
irdma_ceq_tasklet_cb(unsigned long t)
{
        struct irdma_ceq *iwceq = from_tasklet(iwceq, (struct tasklet_struct *)t,
                                               dpc_tasklet);
        struct irdma_pci_f *rf = iwceq->rf;

        irdma_process_ceq(rf, iwceq);
        irdma_ena_intr(&rf->sc_dev, iwceq->msix_idx);
}

/**
 * irdma_save_msix_info - copy msix vector information to iwarp device
 * @rf: RDMA PCI function
 *
 * Allocate iwdev msix table and copy the msix info to the table
 * Return 0 if successful, otherwise return error
 */
static int
irdma_save_msix_info(struct irdma_pci_f *rf)
{
        struct irdma_qvlist_info *iw_qvlist;
        struct irdma_qv_info *iw_qvinfo;
        u16 ceq_idx;
        u32 i;
        u32 size;

        if (!rf->msix_count) {
                irdma_dev_err(to_ibdev(&rf->sc_dev), "No MSI-X vectors reserved for RDMA.\n");
                return -EINVAL;
        }

        size = sizeof(struct irdma_msix_vector) * rf->msix_count;
        size += sizeof(*iw_qvlist);
        size += sizeof(*iw_qvinfo) * (rf->msix_count - 1);
        rf->iw_msixtbl = kzalloc(size, GFP_KERNEL);
        if (!rf->iw_msixtbl)
                return -ENOMEM;

        rf->iw_qvlist = (struct irdma_qvlist_info *)
            (&rf->iw_msixtbl[rf->msix_count]);
        iw_qvlist = rf->iw_qvlist;
        iw_qvinfo = iw_qvlist->qv_info;
        iw_qvlist->num_vectors = rf->msix_count;
        if (rf->msix_count <= num_online_cpus())
                rf->msix_shared = true;
        else if (rf->msix_count > num_online_cpus() + 1)
                rf->msix_count = num_online_cpus() + 1;

        for (i = 0, ceq_idx = 0; i < rf->msix_count; i++, iw_qvinfo++) {
                rf->iw_msixtbl[i].idx = rf->msix_info.entry + i;
                rf->iw_msixtbl[i].cpu_affinity = ceq_idx;
                if (!i) {
                        iw_qvinfo->aeq_idx = 0;
                        if (rf->msix_shared)
                                iw_qvinfo->ceq_idx = ceq_idx++;
                        else
                                iw_qvinfo->ceq_idx = IRDMA_Q_INVALID_IDX;
                } else {
                        iw_qvinfo->aeq_idx = IRDMA_Q_INVALID_IDX;
                        iw_qvinfo->ceq_idx = ceq_idx++;
                }
                iw_qvinfo->itr_idx = IRDMA_IDX_NOITR;
                iw_qvinfo->v_idx = rf->iw_msixtbl[i].idx;
        }

        return 0;
}

/**
 * irdma_aeq_ceq0_irq_handler - interrupt handler for aeq and ceq0
 * @data: RDMA PCI function
 */
static void
irdma_aeq_ceq0_irq_handler(void *data)
{
        struct irdma_pci_f *rf = data;

        tasklet_schedule(&rf->dpc_tasklet);
}

/**
 * irdma_ceq_irq_handler - interrupt handler for ceq
 * @data: ceq pointer
 */
static void
irdma_ceq_irq_handler(void *data)
{
        struct irdma_ceq *iwceq = data;

        tasklet_schedule(&iwceq->dpc_tasklet);
}

/**
 * irdma_free_irq - free device interrupts in FreeBSD manner
 * @rf: RDMA PCI function
 * @msix_vec: msix vector to disable irq
 *
 * The function is called when destroying irq. It tearsdown
 * the interrupt and release resources.
 */
static void
irdma_free_irq(struct irdma_pci_f *rf, struct irdma_msix_vector *msix_vec)
{
        if (msix_vec->tag) {
                bus_teardown_intr(rf->dev_ctx.dev, msix_vec->res,
                                  msix_vec->tag);
                msix_vec->tag = NULL;
        }
        if (msix_vec->res) {
                bus_release_resource(rf->dev_ctx.dev, SYS_RES_IRQ,
                                     msix_vec->idx + 1,
                                     msix_vec->res);
                msix_vec->res = NULL;
        }
}

/**
 * irdma_destroy_irq - destroy device interrupts
 * @rf: RDMA PCI function
 * @msix_vec: msix vector to disable irq
 * @dev_id: parameter to pass to free_irq (used during irq setup)
 *
 * The function is called when destroying aeq/ceq
 */
static void
irdma_destroy_irq(struct irdma_pci_f *rf,
                  struct irdma_msix_vector *msix_vec, void *dev_id)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;

        dev->irq_ops->irdma_dis_irq(dev, msix_vec->idx);
        irdma_free_irq(rf, msix_vec);
        if (rf == dev_id) {
                tasklet_kill(&rf->dpc_tasklet);
        } else {
                struct irdma_ceq *iwceq = (struct irdma_ceq *)dev_id;

                tasklet_kill(&iwceq->dpc_tasklet);
        }
}

/**
 * irdma_destroy_cqp  - destroy control qp
 * @rf: RDMA PCI function
 * @free_hwcqp: 1 if hw cqp should be freed
 *
 * Issue destroy cqp request and
 * free the resources associated with the cqp
 */
static void
irdma_destroy_cqp(struct irdma_pci_f *rf, bool free_hwcqp)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_cqp *cqp = &rf->cqp;
        int status = 0;

        status = irdma_sc_cqp_destroy(dev->cqp, free_hwcqp);
        if (status)
                irdma_debug(dev, IRDMA_DEBUG_ERR, "Destroy CQP failed %d\n", status);

        irdma_cleanup_pending_cqp_op(rf);
        irdma_free_dma_mem(dev->hw, &cqp->sq);
        kfree(cqp->scratch_array);
        cqp->scratch_array = NULL;
        kfree(cqp->cqp_requests);
        cqp->cqp_requests = NULL;
}

static void
irdma_destroy_virt_aeq(struct irdma_pci_f *rf)
{
        struct irdma_aeq *aeq = &rf->aeq;
        u32 pg_cnt = DIV_ROUND_UP(aeq->mem.size, PAGE_SIZE);
        dma_addr_t *pg_arr = (dma_addr_t *) aeq->palloc.level1.addr;

        irdma_unmap_vm_page_list(&rf->hw, pg_arr, pg_cnt);
        irdma_free_pble(rf->pble_rsrc, &aeq->palloc);
        vfree(aeq->mem.va);
}

/**
 * irdma_destroy_aeq - destroy aeq
 * @rf: RDMA PCI function
 *
 * Issue a destroy aeq request and
 * free the resources associated with the aeq
 * The function is called during driver unload
 */
static void
irdma_destroy_aeq(struct irdma_pci_f *rf)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_aeq *aeq = &rf->aeq;
        int status = -EBUSY;

        if (!rf->msix_shared) {
                rf->sc_dev.irq_ops->irdma_cfg_aeq(&rf->sc_dev, rf->iw_msixtbl->idx, false);
                irdma_destroy_irq(rf, rf->iw_msixtbl, rf);
        }
        if (rf->reset)
                goto exit;

        aeq->sc_aeq.size = 0;
        status = irdma_cqp_aeq_cmd(dev, &aeq->sc_aeq, IRDMA_OP_AEQ_DESTROY);
        if (status)
                irdma_debug(dev, IRDMA_DEBUG_ERR, "Destroy AEQ failed %d\n", status);

exit:
        if (aeq->virtual_map)
                irdma_destroy_virt_aeq(rf);
        else
                irdma_free_dma_mem(dev->hw, &aeq->mem);
}

/**
 * irdma_destroy_ceq - destroy ceq
 * @rf: RDMA PCI function
 * @iwceq: ceq to be destroyed
 *
 * Issue a destroy ceq request and
 * free the resources associated with the ceq
 */
static void
irdma_destroy_ceq(struct irdma_pci_f *rf, struct irdma_ceq *iwceq)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        int status;

        if (rf->reset)
                goto exit;

        status = irdma_sc_ceq_destroy(&iwceq->sc_ceq, 0, 1);
        if (status) {
                irdma_debug(dev, IRDMA_DEBUG_ERR, "CEQ destroy command failed %d\n", status);
                goto exit;
        }

        status = irdma_sc_cceq_destroy_done(&iwceq->sc_ceq);
        if (status)
                irdma_debug(dev, IRDMA_DEBUG_ERR,
                            "CEQ destroy completion failed %d\n", status);
exit:
        spin_lock_destroy(&iwceq->ce_lock);
        spin_lock_destroy(&iwceq->sc_ceq.req_cq_lock);
        kfree(iwceq->sc_ceq.reg_cq);
        irdma_free_dma_mem(dev->hw, &iwceq->mem);
}

/**
 * irdma_del_ceq_0 - destroy ceq 0
 * @rf: RDMA PCI function
 *
 * Disable the ceq 0 interrupt and destroy the ceq 0
 */
static void
irdma_del_ceq_0(struct irdma_pci_f *rf)
{
        struct irdma_ceq *iwceq = rf->ceqlist;
        struct irdma_msix_vector *msix_vec;

        if (rf->msix_shared) {
                msix_vec = &rf->iw_msixtbl[0];
                rf->sc_dev.irq_ops->irdma_cfg_ceq(&rf->sc_dev,
                                                  msix_vec->ceq_id,
                                                  msix_vec->idx, false);
                irdma_destroy_irq(rf, msix_vec, rf);
        } else {
                msix_vec = &rf->iw_msixtbl[1];
                irdma_destroy_irq(rf, msix_vec, iwceq);
        }

        irdma_destroy_ceq(rf, iwceq);
        rf->sc_dev.ceq_valid = false;
        rf->ceqs_count = 0;
}

/**
 * irdma_del_ceqs - destroy all ceq's except CEQ 0
 * @rf: RDMA PCI function
 *
 * Go through all of the device ceq's, except 0, and for each
 * ceq disable the ceq interrupt and destroy the ceq
 */
static void
irdma_del_ceqs(struct irdma_pci_f *rf)
{
        struct irdma_ceq *iwceq = &rf->ceqlist[1];
        struct irdma_msix_vector *msix_vec;
        u32 i = 0;

        if (rf->msix_shared)
                msix_vec = &rf->iw_msixtbl[1];
        else
                msix_vec = &rf->iw_msixtbl[2];

        for (i = 1; i < rf->ceqs_count; i++, msix_vec++, iwceq++) {
                rf->sc_dev.irq_ops->irdma_cfg_ceq(&rf->sc_dev, msix_vec->ceq_id,
                                                  msix_vec->idx, false);
                irdma_destroy_irq(rf, msix_vec, iwceq);
                irdma_cqp_ceq_cmd(&rf->sc_dev, &iwceq->sc_ceq,
                                  IRDMA_OP_CEQ_DESTROY);
                spin_lock_destroy(&iwceq->ce_lock);
                spin_lock_destroy(&iwceq->sc_ceq.req_cq_lock);
                kfree(iwceq->sc_ceq.reg_cq);
                irdma_free_dma_mem(rf->sc_dev.hw, &iwceq->mem);
        }
        rf->ceqs_count = 1;
}

/**
 * irdma_destroy_ccq - destroy control cq
 * @rf: RDMA PCI function
 *
 * Issue destroy ccq request and
 * free the resources associated with the ccq
 */
static void
irdma_destroy_ccq(struct irdma_pci_f *rf)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_ccq *ccq = &rf->ccq;
        int status = 0;

        if (rf->cqp_cmpl_wq)
                destroy_workqueue(rf->cqp_cmpl_wq);
        if (!rf->reset)
                status = irdma_sc_ccq_destroy(dev->ccq, 0, true);
        if (status)
                irdma_debug(dev, IRDMA_DEBUG_ERR, "CCQ destroy failed %d\n", status);
        irdma_free_dma_mem(dev->hw, &ccq->mem_cq);
}

/**
 * irdma_close_hmc_objects_type - delete hmc objects of a given type
 * @dev: iwarp device
 * @obj_type: the hmc object type to be deleted
 * @hmc_info: host memory info struct
 * @privileged: permission to close HMC objects
 * @reset: true if called before reset
 */
static void
irdma_close_hmc_objects_type(struct irdma_sc_dev *dev,
                             enum irdma_hmc_rsrc_type obj_type,
                             struct irdma_hmc_info *hmc_info,
                             bool privileged, bool reset)
{
        struct irdma_hmc_del_obj_info info = {0};

        info.hmc_info = hmc_info;
        info.rsrc_type = obj_type;
        info.count = hmc_info->hmc_obj[obj_type].cnt;
        info.privileged = privileged;
        if (irdma_sc_del_hmc_obj(dev, &info, reset))
                irdma_debug(dev, IRDMA_DEBUG_ERR,
                            "del HMC obj of type %d failed\n", obj_type);
}

/**
 * irdma_del_hmc_objects - remove all device hmc objects
 * @dev: iwarp device
 * @hmc_info: hmc_info to free
 * @privileged: permission to delete HMC objects
 * @reset: true if called before reset
 * @vers: hardware version
 */
void
irdma_del_hmc_objects(struct irdma_sc_dev *dev,
                      struct irdma_hmc_info *hmc_info, bool privileged,
                      bool reset, enum irdma_vers vers)
{
        unsigned int i;

        for (i = 0; i < IW_HMC_OBJ_TYPE_NUM; i++) {
                if (dev->hmc_info->hmc_obj[iw_hmc_obj_types[i]].cnt)
                        irdma_close_hmc_objects_type(dev, iw_hmc_obj_types[i],
                                                     hmc_info, privileged, reset);
                if (vers == IRDMA_GEN_1 && i == IRDMA_HMC_IW_TIMER)
                        break;
        }
}

/**
 * irdma_create_hmc_obj_type - create hmc object of a given type
 * @dev: hardware control device structure
 * @info: information for the hmc object to create
 */
static int
irdma_create_hmc_obj_type(struct irdma_sc_dev *dev,
                          struct irdma_hmc_create_obj_info *info)
{
        return irdma_sc_create_hmc_obj(dev, info);
}

/**
 * irdma_create_hmc_objs - create all hmc objects for the device
 * @rf: RDMA PCI function
 * @privileged: permission to create HMC objects
 * @vers: HW version
 *
 * Create the device hmc objects and allocate hmc pages
 * Return 0 if successful, otherwise clean up and return error
 */
static int
irdma_create_hmc_objs(struct irdma_pci_f *rf, bool privileged,
                      enum irdma_vers vers)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_hmc_create_obj_info info = {0};
        int i, status = 0;

        info.hmc_info = dev->hmc_info;
        info.privileged = privileged;
        info.entry_type = rf->sd_type;

        for (i = 0; i < IW_HMC_OBJ_TYPE_NUM; i++) {
                if (iw_hmc_obj_types[i] == IRDMA_HMC_IW_PBLE)
                        continue;
                if (dev->hmc_info->hmc_obj[iw_hmc_obj_types[i]].cnt) {
                        info.rsrc_type = iw_hmc_obj_types[i];
                        info.count = dev->hmc_info->hmc_obj[info.rsrc_type].cnt;
                        info.add_sd_cnt = 0;
                        status = irdma_create_hmc_obj_type(dev, &info);
                        if (status) {
                                irdma_debug(dev, IRDMA_DEBUG_ERR,
                                            "create obj type %d status = %d\n",
                                            iw_hmc_obj_types[i], status);
                                break;
                        }
                }
                if (vers == IRDMA_GEN_1 && i == IRDMA_HMC_IW_TIMER)
                        break;
        }

        if (!status)
                return irdma_sc_static_hmc_pages_allocated(dev->cqp, 0, dev->hmc_fn_id,
                                                           true, true);

        while (i) {
                i--;
                /* destroy the hmc objects of a given type */
                if (dev->hmc_info->hmc_obj[iw_hmc_obj_types[i]].cnt)
                        irdma_close_hmc_objects_type(dev, iw_hmc_obj_types[i],
                                                     dev->hmc_info, privileged,
                                                     false);
        }

        return status;
}

/**
 * irdma_obj_aligned_mem - get aligned memory from device allocated memory
 * @rf: RDMA PCI function
 * @memptr: points to the memory addresses
 * @size: size of memory needed
 * @mask: mask for the aligned memory
 *
 * Get aligned memory of the requested size and
 * update the memptr to point to the new aligned memory
 * Return 0 if successful, otherwise return no memory error
 */
static int
irdma_obj_aligned_mem(struct irdma_pci_f *rf,
                      struct irdma_dma_mem *memptr, u32 size,
                      u32 mask)
{
        unsigned long va, newva;
        unsigned long extra;

        va = (unsigned long)rf->obj_next.va;
        newva = va;
        if (mask)
                newva = ALIGN(va, (unsigned long)mask + 1ULL);
        extra = newva - va;
        memptr->va = (u8 *)va + extra;
        memptr->pa = rf->obj_next.pa + extra;
        memptr->size = size;
        if (((u8 *)memptr->va + size) > ((u8 *)rf->obj_mem.va + rf->obj_mem.size))
                return -ENOMEM;

        rf->obj_next.va = (u8 *)memptr->va + size;
        rf->obj_next.pa = memptr->pa + size;

        return 0;
}

/**
 * irdma_create_cqp - create control qp
 * @rf: RDMA PCI function
 *
 * Return 0, if the cqp and all the resources associated with it
 * are successfully created, otherwise return error
 */
static int
irdma_create_cqp(struct irdma_pci_f *rf)
{
        u32 sqsize = IRDMA_CQP_SW_SQSIZE_MAX;
        struct irdma_dma_mem mem;
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_cqp_init_info cqp_init_info = {0};
        struct irdma_cqp *cqp = &rf->cqp;
        u16 maj_err, min_err;
        int i, status;

        cqp->cqp_requests = kcalloc(sqsize, sizeof(*cqp->cqp_requests),
                                    GFP_KERNEL);
        if (!cqp->cqp_requests)
                return -ENOMEM;

        cqp->scratch_array = kcalloc(sqsize, sizeof(*cqp->scratch_array),
                                     GFP_KERNEL);
        if (!cqp->scratch_array) {
                status = -ENOMEM;
                goto err_scratch;
        }

        dev->cqp = &cqp->sc_cqp;
        dev->cqp->dev = dev;
        cqp->sq.size = sizeof(struct irdma_cqp_sq_wqe) * sqsize;
        cqp->sq.va = irdma_allocate_dma_mem(dev->hw, &cqp->sq, cqp->sq.size,
                                            IRDMA_CQP_ALIGNMENT);
        if (!cqp->sq.va) {
                status = -ENOMEM;
                goto err_sq;
        }

        status = irdma_obj_aligned_mem(rf, &mem, sizeof(struct irdma_cqp_ctx),
                                       IRDMA_HOST_CTX_ALIGNMENT_M);
        if (status)
                goto err_ctx;

        dev->cqp->host_ctx_pa = mem.pa;
        dev->cqp->host_ctx = mem.va;
        /* populate the cqp init info */
        cqp_init_info.dev = dev;
        cqp_init_info.sq_size = sqsize;
        cqp_init_info.sq = cqp->sq.va;
        cqp_init_info.sq_pa = cqp->sq.pa;
        cqp_init_info.host_ctx_pa = mem.pa;
        cqp_init_info.host_ctx = mem.va;
        cqp_init_info.hmc_profile = rf->rsrc_profile;
        cqp_init_info.scratch_array = cqp->scratch_array;
        cqp_init_info.protocol_used = rf->protocol_used;
        cqp_init_info.en_rem_endpoint_trk = rf->en_rem_endpoint_trk;
        cqp_init_info.timer_slots = rf->timer_slots;
        memcpy(&cqp_init_info.dcqcn_params, &rf->dcqcn_params,
               sizeof(cqp_init_info.dcqcn_params));

        switch (rf->rdma_ver) {
        case IRDMA_GEN_1:
                cqp_init_info.hw_maj_ver = IRDMA_CQPHC_HW_MAJVER_GEN_1;
                break;
        case IRDMA_GEN_2:
                cqp_init_info.hw_maj_ver = IRDMA_CQPHC_HW_MAJVER_GEN_2;
                break;
        }
        status = irdma_sc_cqp_init(dev->cqp, &cqp_init_info);
        if (status) {
                irdma_debug(dev, IRDMA_DEBUG_ERR, "cqp init status %d\n", status);
                goto err_ctx;
        }

        spin_lock_init(&cqp->req_lock);
        spin_lock_init(&cqp->compl_lock);

        status = irdma_sc_cqp_create(dev->cqp, &maj_err, &min_err);
        if (status) {
                irdma_debug(dev, IRDMA_DEBUG_ERR,
                            "cqp create failed - status %d maj_err %d min_err %d\n",
                            status, maj_err, min_err);
                goto err_ctx;
        }

        INIT_LIST_HEAD(&cqp->cqp_avail_reqs);
        INIT_LIST_HEAD(&cqp->cqp_pending_reqs);

        /* init the waitqueue of the cqp_requests and add them to the list */
        for (i = 0; i < sqsize; i++) {
                init_waitqueue_head(&cqp->cqp_requests[i].waitq);
                list_add_tail(&cqp->cqp_requests[i].list, &cqp->cqp_avail_reqs);
        }
        init_waitqueue_head(&cqp->remove_wq);
        return 0;

err_ctx:
        irdma_free_dma_mem(dev->hw, &cqp->sq);
err_sq:
        kfree(cqp->scratch_array);
        cqp->scratch_array = NULL;
err_scratch:
        kfree(cqp->cqp_requests);
        cqp->cqp_requests = NULL;

        return status;
}

/**
 * irdma_create_ccq - create control cq
 * @rf: RDMA PCI function
 *
 * Return 0, if the ccq and the resources associated with it
 * are successfully created, otherwise return error
 */
static int
irdma_create_ccq(struct irdma_pci_f *rf)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_ccq_init_info info = {0};
        struct irdma_ccq *ccq = &rf->ccq;
        int status;
        int ccq_size = IW_CCQ_SIZE;

        dev->ccq = &ccq->sc_cq;
        dev->ccq->dev = dev;
        info.dev = dev;
        ccq->shadow_area.size = sizeof(struct irdma_cq_shadow_area);
        ccq->mem_cq.size = sizeof(struct irdma_cqe) * ccq_size;
        ccq->mem_cq.va = irdma_allocate_dma_mem(dev->hw, &ccq->mem_cq,
                                                ccq->mem_cq.size,
                                                IRDMA_CQ0_ALIGNMENT);
        if (!ccq->mem_cq.va)
                return -ENOMEM;

        status = irdma_obj_aligned_mem(rf, &ccq->shadow_area,
                                       ccq->shadow_area.size,
                                       IRDMA_SHADOWAREA_M);
        if (status)
                goto exit;

        ccq->sc_cq.back_cq = ccq;
        /* populate the ccq init info */
        info.cq_base = ccq->mem_cq.va;
        info.cq_pa = ccq->mem_cq.pa;
        info.num_elem = ccq_size;
        info.shadow_area = ccq->shadow_area.va;
        info.shadow_area_pa = ccq->shadow_area.pa;
        info.ceqe_mask = false;
        info.ceq_id_valid = true;
        info.shadow_read_threshold = 16;
        info.vsi = &rf->default_vsi;
        status = irdma_sc_ccq_init(dev->ccq, &info);
        if (!status)
                status = irdma_sc_ccq_create(dev->ccq, 0, true, true);
exit:
        if (status)
                irdma_free_dma_mem(dev->hw, &ccq->mem_cq);

        return status;
}

/**
 * irdma_alloc_set_mac - set up a mac address table entry
 * @iwdev: irdma device
 *
 * Allocate a mac ip entry and add it to the hw table Return 0
 * if successful, otherwise return error
 */
static int
irdma_alloc_set_mac(struct irdma_device *iwdev)
{
        int status;

        status = irdma_alloc_local_mac_entry(iwdev->rf,
                                             &iwdev->mac_ip_table_idx);
        if (!status) {
                status = irdma_add_local_mac_entry(iwdev->rf,
                                                   (const u8 *)if_getlladdr(iwdev->netdev),
                                                   (u8)iwdev->mac_ip_table_idx);
                if (status)
                        irdma_del_local_mac_entry(iwdev->rf,
                                                  (u8)iwdev->mac_ip_table_idx);
        }
        return status;
}

/**
 * irdma_irq_request - set up the msix interrupt vector
 * @rf: RDMA PCI function
 * @msix_vec: interrupt vector information
 * @handler: function pointer to associate with interrupt
 * @argument: argument passed to the handler
 *
 * Allocate interrupt resources and setup interrupt
 * Return 0 if successful, otherwise return error
 * Note that after this function bus_describe_intr shall
 * be called.
 */
static int
irdma_irq_request(struct irdma_pci_f *rf,
                  struct irdma_msix_vector *msix_vec,
                  driver_intr_t handler, void *argument)
{
        device_t dev = rf->dev_ctx.dev;
        int rid = msix_vec->idx + 1;
        int err, status;

        msix_vec->res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_SHAREABLE | RF_ACTIVE);
        if (!msix_vec->res) {
                irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR,
                            "Unable to allocate bus resource int[%d]\n", rid);
                return -EINVAL;
        }
        err = bus_setup_intr(dev, msix_vec->res, INTR_TYPE_NET | INTR_MPSAFE,
                             NULL, handler, argument, &msix_vec->tag);
        if (err) {
                irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR,
                            "Unable to register handler with %x status\n", err);
                status = -EINVAL;
                goto fail_intr;
        }
        return 0;

fail_intr:
        bus_release_resource(dev, SYS_RES_IRQ, rid, msix_vec->res);
        msix_vec->res = NULL;

        return status;
}

/**
 * irdma_cfg_ceq_vector - set up the msix interrupt vector for
 * ceq
 * @rf: RDMA PCI function
 * @iwceq: ceq associated with the vector
 * @ceq_id: the id number of the iwceq
 * @msix_vec: interrupt vector information
 *
 * Allocate interrupt resources and enable irq handling
 * Return 0 if successful, otherwise return error
 */
static int
irdma_cfg_ceq_vector(struct irdma_pci_f *rf, struct irdma_ceq *iwceq,
                     u16 ceq_id, struct irdma_msix_vector *msix_vec)
{
        int status;

        if (rf->msix_shared && !ceq_id) {
                snprintf(msix_vec->name, sizeof(msix_vec->name) - 1,
                         "irdma-%s-AEQCEQ-0", dev_name(&rf->pcidev->dev));
                tasklet_setup(&rf->dpc_tasklet, irdma_aeq_ceq0_tasklet_cb);
                status = irdma_irq_request(rf, msix_vec, irdma_aeq_ceq0_irq_handler, rf);
                if (status)
                        return status;
                bus_describe_intr(rf->dev_ctx.dev, msix_vec->res, msix_vec->tag, "%s", msix_vec->name);
        } else {
                snprintf(msix_vec->name, sizeof(msix_vec->name) - 1,
                         "irdma-%s-CEQ-%d",
                         dev_name(&rf->pcidev->dev), ceq_id);
                tasklet_setup(&iwceq->dpc_tasklet, irdma_ceq_tasklet_cb);

                status = irdma_irq_request(rf, msix_vec, irdma_ceq_irq_handler, iwceq);
                if (status)
                        return status;
                bus_describe_intr(rf->dev_ctx.dev, msix_vec->res, msix_vec->tag, "%s", msix_vec->name);
        }
        msix_vec->ceq_id = ceq_id;
        rf->sc_dev.irq_ops->irdma_cfg_ceq(&rf->sc_dev, ceq_id, msix_vec->idx, true);

        return 0;
}

/**
 * irdma_cfg_aeq_vector - set up the msix vector for aeq
 * @rf: RDMA PCI function
 *
 * Allocate interrupt resources and enable irq handling
 * Return 0 if successful, otherwise return error
 */
static int
irdma_cfg_aeq_vector(struct irdma_pci_f *rf)
{
        struct irdma_msix_vector *msix_vec = rf->iw_msixtbl;
        int status = 0;

        if (!rf->msix_shared) {
                snprintf(msix_vec->name, sizeof(msix_vec->name) - 1,
                         "irdma-%s-AEQ", dev_name(&rf->pcidev->dev));
                tasklet_setup(&rf->dpc_tasklet, irdma_aeq_ceq0_tasklet_cb);
                status = irdma_irq_request(rf, msix_vec, irdma_aeq_ceq0_irq_handler, rf);
                if (status)
                        return status;
                bus_describe_intr(rf->dev_ctx.dev, msix_vec->res, msix_vec->tag, "%s", msix_vec->name);
        }

        if (status) {
                irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR, "aeq irq config fail\n");
                return status;
        }

        rf->sc_dev.irq_ops->irdma_cfg_aeq(&rf->sc_dev, msix_vec->idx, true);

        return 0;
}

/**
 * irdma_create_ceq - create completion event queue
 * @rf: RDMA PCI function
 * @iwceq: pointer to the ceq resources to be created
 * @ceq_id: the id number of the iwceq
 * @vsi: SC vsi struct
 *
 * Return 0, if the ceq and the resources associated with it
 * are successfully created, otherwise return error
 */
static int
irdma_create_ceq(struct irdma_pci_f *rf, struct irdma_ceq *iwceq,
                 u16 ceq_id, struct irdma_sc_vsi *vsi)
{
        int status;
        struct irdma_ceq_init_info info = {0};
        struct irdma_sc_dev *dev = &rf->sc_dev;
        u32 ceq_size;

        info.ceq_id = ceq_id;
        iwceq->rf = rf;
        ceq_size = min(rf->sc_dev.hmc_info->hmc_obj[IRDMA_HMC_IW_CQ].cnt,
                       dev->hw_attrs.max_hw_ceq_size);
        iwceq->mem.size = sizeof(struct irdma_ceqe) * ceq_size;
        iwceq->mem.va = irdma_allocate_dma_mem(dev->hw, &iwceq->mem,
                                               iwceq->mem.size,
                                               IRDMA_CEQ_ALIGNMENT);
        if (!iwceq->mem.va)
                return -ENOMEM;

        info.ceq_id = ceq_id;
        info.ceqe_base = iwceq->mem.va;
        info.ceqe_pa = iwceq->mem.pa;
        info.elem_cnt = ceq_size;
        info.reg_cq = kzalloc(sizeof(struct irdma_sc_cq *) * info.elem_cnt, GFP_KERNEL);

        iwceq->sc_ceq.ceq_id = ceq_id;
        info.dev = dev;
        info.vsi = vsi;
        status = irdma_sc_ceq_init(&iwceq->sc_ceq, &info);
        if (!status) {
                if (dev->ceq_valid)
                        status = irdma_cqp_ceq_cmd(&rf->sc_dev, &iwceq->sc_ceq,
                                                   IRDMA_OP_CEQ_CREATE);
                else
                        status = irdma_sc_cceq_create(&iwceq->sc_ceq);
        }

        if (status) {
                kfree(info.reg_cq);
                irdma_free_dma_mem(dev->hw, &iwceq->mem);
        }

        return status;
}

/**
 * irdma_setup_ceq_0 - create CEQ 0 and it's interrupt resource
 * @rf: RDMA PCI function
 *
 * Allocate a list for all device completion event queues
 * Create the ceq 0 and configure it's msix interrupt vector
 * Return 0, if successfully set up, otherwise return error
 */
static int
irdma_setup_ceq_0(struct irdma_pci_f *rf)
{
        struct irdma_ceq *iwceq;
        struct irdma_msix_vector *msix_vec;
        u32 i;
        int status = 0;
        u32 num_ceqs;

        num_ceqs = min(rf->msix_count, rf->sc_dev.hmc_fpm_misc.max_ceqs);
        rf->ceqlist = kcalloc(num_ceqs, sizeof(*rf->ceqlist), GFP_KERNEL);
        memset(rf->ceqlist, 0, num_ceqs * sizeof(*rf->ceqlist));
        if (!rf->ceqlist) {
                status = -ENOMEM;
                goto exit;
        }

        iwceq = &rf->ceqlist[0];
        status = irdma_create_ceq(rf, iwceq, 0, &rf->default_vsi);
        if (status) {
                irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR,
                            "create ceq status = %d\n", status);
                goto exit;
        }

        spin_lock_init(&iwceq->ce_lock);
        i = rf->msix_shared ? 0 : 1;
        msix_vec = &rf->iw_msixtbl[i];
        iwceq->irq = msix_vec->irq;
        iwceq->msix_idx = msix_vec->idx;
        status = irdma_cfg_ceq_vector(rf, iwceq, 0, msix_vec);
        if (status) {
                irdma_destroy_ceq(rf, iwceq);
                goto exit;
        }

        irdma_ena_intr(&rf->sc_dev, msix_vec->idx);
        rf->ceqs_count++;

exit:
        if (status && !rf->ceqs_count) {
                kfree(rf->ceqlist);
                rf->ceqlist = NULL;
                return status;
        }
        rf->sc_dev.ceq_valid = true;

        return 0;
}

/**
 * irdma_setup_ceqs - manage the device ceq's and their interrupt resources
 * @rf: RDMA PCI function
 * @vsi: VSI structure for this CEQ
 *
 * Allocate a list for all device completion event queues
 * Create the ceq's and configure their msix interrupt vectors
 * Return 0, if ceqs are successfully set up, otherwise return error
 */
static int
irdma_setup_ceqs(struct irdma_pci_f *rf, struct irdma_sc_vsi *vsi)
{
        u32 i;
        u16 ceq_id;
        struct irdma_ceq *iwceq;
        struct irdma_msix_vector *msix_vec;
        int status;
        u32 num_ceqs;

        num_ceqs = min(rf->msix_count, rf->sc_dev.hmc_fpm_misc.max_ceqs);
        i = (rf->msix_shared) ? 1 : 2;
        for (ceq_id = 1; i < num_ceqs; i++, ceq_id++) {
                iwceq = &rf->ceqlist[ceq_id];
                status = irdma_create_ceq(rf, iwceq, ceq_id, vsi);
                if (status) {
                        irdma_debug(&rf->sc_dev, IRDMA_DEBUG_ERR,
                                    "create ceq status = %d\n", status);
                        goto del_ceqs;
                }
                spin_lock_init(&iwceq->ce_lock);
                msix_vec = &rf->iw_msixtbl[i];
                iwceq->irq = msix_vec->irq;
                iwceq->msix_idx = msix_vec->idx;
                status = irdma_cfg_ceq_vector(rf, iwceq, ceq_id, msix_vec);
                if (status) {
                        irdma_destroy_ceq(rf, iwceq);
                        goto del_ceqs;
                }
                irdma_ena_intr(&rf->sc_dev, msix_vec->idx);
                rf->ceqs_count++;
        }

        return 0;

del_ceqs:
        irdma_del_ceqs(rf);

        return status;
}

static int
irdma_create_virt_aeq(struct irdma_pci_f *rf, u32 size)
{
        struct irdma_aeq *aeq = &rf->aeq;
        dma_addr_t *pg_arr;
        u32 pg_cnt;
        int status;

        if (rf->rdma_ver < IRDMA_GEN_2)
                return -EOPNOTSUPP;

        aeq->mem.size = sizeof(struct irdma_sc_aeqe) * size;
        aeq->mem.va = vzalloc(aeq->mem.size);

        if (!aeq->mem.va)
                return -ENOMEM;

        pg_cnt = DIV_ROUND_UP(aeq->mem.size, PAGE_SIZE);
        status = irdma_get_pble(rf->pble_rsrc, &aeq->palloc, pg_cnt, true);
        if (status) {
                vfree(aeq->mem.va);
                return status;
        }

        pg_arr = (dma_addr_t *) aeq->palloc.level1.addr;
        status = irdma_map_vm_page_list(&rf->hw, aeq->mem.va, pg_arr, pg_cnt);
        if (status) {
                irdma_free_pble(rf->pble_rsrc, &aeq->palloc);
                vfree(aeq->mem.va);
                return status;
        }

        return 0;
}

/**
 * irdma_create_aeq - create async event queue
 * @rf: RDMA PCI function
 *
 * Return 0, if the aeq and the resources associated with it
 * are successfully created, otherwise return error
 */
static int
irdma_create_aeq(struct irdma_pci_f *rf)
{
        struct irdma_aeq_init_info info = {0};
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_aeq *aeq = &rf->aeq;
        struct irdma_hmc_info *hmc_info = rf->sc_dev.hmc_info;
        u32 aeq_size;
        u8 multiplier = (rf->protocol_used == IRDMA_IWARP_PROTOCOL_ONLY) ? 2 : 1;
        int status;

        aeq_size = multiplier * hmc_info->hmc_obj[IRDMA_HMC_IW_QP].cnt +
            hmc_info->hmc_obj[IRDMA_HMC_IW_CQ].cnt;
        aeq_size = min(aeq_size, dev->hw_attrs.max_hw_aeq_size);

        aeq->mem.size = sizeof(struct irdma_sc_aeqe) * aeq_size;
        aeq->mem.va = irdma_allocate_dma_mem(dev->hw, &aeq->mem, aeq->mem.size,
                                             IRDMA_AEQ_ALIGNMENT);
        if (aeq->mem.va)
                goto skip_virt_aeq;

        /* physically mapped aeq failed. setup virtual aeq */
        status = irdma_create_virt_aeq(rf, aeq_size);
        if (status)
                return status;

        info.virtual_map = true;
        aeq->virtual_map = info.virtual_map;
        info.pbl_chunk_size = 1;
        info.first_pm_pbl_idx = aeq->palloc.level1.idx;

skip_virt_aeq:
        info.aeqe_base = aeq->mem.va;
        info.aeq_elem_pa = aeq->mem.pa;
        info.elem_cnt = aeq_size;
        info.dev = dev;
        info.msix_idx = rf->iw_msixtbl->idx;
        status = irdma_sc_aeq_init(&aeq->sc_aeq, &info);
        if (status)
                goto err;

        status = irdma_cqp_aeq_cmd(dev, &aeq->sc_aeq, IRDMA_OP_AEQ_CREATE);
        if (status)
                goto err;

        return 0;

err:
        if (aeq->virtual_map)
                irdma_destroy_virt_aeq(rf);
        else
                irdma_free_dma_mem(dev->hw, &aeq->mem);

        return status;
}

/**
 * irdma_setup_aeq - set up the device aeq
 * @rf: RDMA PCI function
 *
 * Create the aeq and configure its msix interrupt vector
 * Return 0 if successful, otherwise return error
 */
static int
irdma_setup_aeq(struct irdma_pci_f *rf)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        int status;

        status = irdma_create_aeq(rf);
        if (status)
                return status;

        status = irdma_cfg_aeq_vector(rf);
        if (status) {
                irdma_destroy_aeq(rf);
                return status;
        }

        if (!rf->msix_shared)
                irdma_ena_intr(dev, rf->iw_msixtbl[0].idx);

        return 0;
}

/**
 * irdma_initialize_ilq - create iwarp local queue for cm
 * @iwdev: irdma device
 *
 * Return 0 if successful, otherwise return error
 */
static int
irdma_initialize_ilq(struct irdma_device *iwdev)
{
        struct irdma_puda_rsrc_info info = {0};
        int status;

        info.type = IRDMA_PUDA_RSRC_TYPE_ILQ;
        info.cq_id = 1;
        info.qp_id = 1;
        info.count = 1;
        info.pd_id = 1;
        info.abi_ver = IRDMA_ABI_VER;
        info.sq_size = min(iwdev->rf->max_qp / 2, (u32)32768);
        info.rq_size = info.sq_size;
        info.buf_size = 1024;
        info.tx_buf_cnt = 2 * info.sq_size;
        info.receive = irdma_receive_ilq;
        info.xmit_complete = irdma_cm_ilq_cmpl_handler;
        status = irdma_puda_create_rsrc(&iwdev->vsi, &info);
        if (status)
                irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_ERR, "ilq create fail\n");

        return status;
}

/**
 * irdma_initialize_ieq - create iwarp exception queue
 * @iwdev: irdma device
 *
 * Return 0 if successful, otherwise return error
 */
static int
irdma_initialize_ieq(struct irdma_device *iwdev)
{
        struct irdma_puda_rsrc_info info = {0};
        int status;

        info.type = IRDMA_PUDA_RSRC_TYPE_IEQ;
        info.cq_id = 2;
        info.qp_id = iwdev->vsi.exception_lan_q;
        info.count = 1;
        info.pd_id = 2;
        info.abi_ver = IRDMA_ABI_VER;
        info.sq_size = min(iwdev->rf->max_qp / 2, (u32)32768);
        info.rq_size = info.sq_size;
        info.buf_size = iwdev->vsi.mtu + IRDMA_IPV4_PAD;
        info.tx_buf_cnt = 4096;
        status = irdma_puda_create_rsrc(&iwdev->vsi, &info);
        if (status)
                irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_ERR, "ieq create fail\n");

        return status;
}

/**
 * irdma_reinitialize_ieq - destroy and re-create ieq
 * @vsi: VSI structure
 */
void
irdma_reinitialize_ieq(struct irdma_sc_vsi *vsi)
{
        struct irdma_device *iwdev = vsi->back_vsi;
        struct irdma_pci_f *rf = iwdev->rf;

        irdma_puda_dele_rsrc(vsi, IRDMA_PUDA_RSRC_TYPE_IEQ, false);
        if (irdma_initialize_ieq(iwdev)) {
                iwdev->rf->reset = true;
                rf->gen_ops.request_reset(rf);
        }
}

/**
 * irdma_hmc_setup - create hmc objects for the device
 * @rf: RDMA PCI function
 *
 * Set up the device private memory space for the number and size of
 * the hmc objects and create the objects
 * Return 0 if successful, otherwise return error
 */
static int
irdma_hmc_setup(struct irdma_pci_f *rf)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        int status;
        u32 qpcnt;

        qpcnt = rsrc_limits_table[rf->limits_sel].qplimit;

        rf->sd_type = IRDMA_SD_TYPE_DIRECT;
        status = irdma_cfg_fpm_val(dev, qpcnt);
        if (status)
                return status;

        status = irdma_create_hmc_objs(rf, true, rf->rdma_ver);

        return status;
}

/**
 * irdma_del_init_mem - deallocate memory resources
 * @rf: RDMA PCI function
 */
static void
irdma_del_init_mem(struct irdma_pci_f *rf)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;

        kfree(dev->hmc_info->sd_table.sd_entry);
        dev->hmc_info->sd_table.sd_entry = NULL;
        vfree(rf->mem_rsrc);
        rf->mem_rsrc = NULL;
        irdma_free_dma_mem(&rf->hw, &rf->obj_mem);
        if (rf->rdma_ver != IRDMA_GEN_1) {
                kfree(rf->allocated_ws_nodes);
                rf->allocated_ws_nodes = NULL;
        }
        mutex_destroy(&dev->ws_mutex);
        kfree(rf->ceqlist);
        rf->ceqlist = NULL;
        kfree(rf->iw_msixtbl);
        rf->iw_msixtbl = NULL;
        kfree(rf->hmc_info_mem);
        rf->hmc_info_mem = NULL;
}
/**
 * irdma_initialize_dev - initialize device
 * @rf: RDMA PCI function
 *
 * Allocate memory for the hmc objects and initialize iwdev
 * Return 0 if successful, otherwise clean up the resources
 * and return error
 */
static int
irdma_initialize_dev(struct irdma_pci_f *rf)
{
        int status;
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_device_init_info info = {0};
        struct irdma_dma_mem mem;
        u32 size;

        size = sizeof(struct irdma_hmc_pble_rsrc) +
            sizeof(struct irdma_hmc_info) +
            (sizeof(struct irdma_hmc_obj_info) * IRDMA_HMC_IW_MAX);

        rf->hmc_info_mem = kzalloc(size, GFP_KERNEL);
        if (!rf->hmc_info_mem)
                return -ENOMEM;

        rf->pble_rsrc = (struct irdma_hmc_pble_rsrc *)rf->hmc_info_mem;
        dev->hmc_info = &rf->hw.hmc;
        dev->hmc_info->hmc_obj = (struct irdma_hmc_obj_info *)
            (rf->pble_rsrc + 1);

        status = irdma_obj_aligned_mem(rf, &mem, IRDMA_QUERY_FPM_BUF_SIZE,
                                       IRDMA_FPM_QUERY_BUF_ALIGNMENT_M);
        if (status)
                goto error;

        info.fpm_query_buf_pa = mem.pa;
        info.fpm_query_buf = mem.va;

        status = irdma_obj_aligned_mem(rf, &mem, IRDMA_COMMIT_FPM_BUF_SIZE,
                                       IRDMA_FPM_COMMIT_BUF_ALIGNMENT_M);
        if (status)
                goto error;

        info.fpm_commit_buf_pa = mem.pa;
        info.fpm_commit_buf = mem.va;

        info.bar0 = rf->hw.hw_addr;
        info.hmc_fn_id = rf->peer_info->pf_id;
        /*
         * the debug_mask is already assigned at this point through sysctl and so the value shouldn't be overwritten
         */
        info.debug_mask = rf->sc_dev.debug_mask;
        info.hw = &rf->hw;
        status = irdma_sc_dev_init(&rf->sc_dev, &info);
        if (status)
                goto error;

        return status;
error:
        kfree(rf->hmc_info_mem);
        rf->hmc_info_mem = NULL;

        return status;
}

/**
 * irdma_rt_deinit_hw - clean up the irdma device resources
 * @iwdev: irdma device
 *
 * remove the mac ip entry and ipv4/ipv6 addresses, destroy the
 * device queues and free the pble and the hmc objects
 */
void
irdma_rt_deinit_hw(struct irdma_device *iwdev)
{
        struct irdma_sc_qp qp = {{0}};

        irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_INIT, "state = %d\n", iwdev->init_state);

        switch (iwdev->init_state) {
        case IP_ADDR_REGISTERED:
                if (iwdev->rf->sc_dev.hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
                        irdma_del_local_mac_entry(iwdev->rf,
                                                  (u8)iwdev->mac_ip_table_idx);
                /* fallthrough */
        case AEQ_CREATED:
        case PBLE_CHUNK_MEM:
        case CEQS_CREATED:
        case REM_ENDPOINT_TRK_CREATED:
                if (iwdev->rf->en_rem_endpoint_trk) {
                        qp.dev = &iwdev->rf->sc_dev;
                        qp.qp_uk.qp_id = IRDMA_REM_ENDPOINT_TRK_QPID;
                        qp.qp_uk.qp_type = IRDMA_QP_TYPE_IWARP;
                        irdma_cqp_qp_destroy_cmd(qp.dev, &qp);
                }
                /* fallthrough */
        case IEQ_CREATED:
                if (!iwdev->roce_mode)
                        irdma_puda_dele_rsrc(&iwdev->vsi, IRDMA_PUDA_RSRC_TYPE_IEQ,
                                             iwdev->rf->reset);
                /* fallthrough */
        case ILQ_CREATED:
                if (!iwdev->roce_mode)
                        irdma_puda_dele_rsrc(&iwdev->vsi,
                                             IRDMA_PUDA_RSRC_TYPE_ILQ,
                                             iwdev->rf->reset);
                break;
        default:
                irdma_dev_warn(&iwdev->ibdev, "bad init_state = %d\n", iwdev->init_state);
                break;
        }

        irdma_cleanup_cm_core(&iwdev->cm_core);
        if (iwdev->vsi.pestat) {
                irdma_vsi_stats_free(&iwdev->vsi);
                kfree(iwdev->vsi.pestat);
        }
        if (iwdev->cleanup_wq)
                destroy_workqueue(iwdev->cleanup_wq);
}

static int
irdma_setup_init_state(struct irdma_pci_f *rf)
{
        int status;

        status = irdma_save_msix_info(rf);
        if (status)
                return status;

        rf->obj_mem.size = 8192;
        rf->obj_mem.va = irdma_allocate_dma_mem(&rf->hw, &rf->obj_mem,
                                                rf->obj_mem.size,
                                                IRDMA_HW_PAGE_SIZE);
        if (!rf->obj_mem.va) {
                status = -ENOMEM;
                goto clean_msixtbl;
        }

        rf->obj_next = rf->obj_mem;
        status = irdma_initialize_dev(rf);
        if (status)
                goto clean_obj_mem;

        /*
         * Apply sysctl settings to max_hw_ird/ord
         */
        rf->sc_dev.hw_attrs.max_hw_ird = irdma_sysctl_max_ird;
        rf->sc_dev.hw_attrs.max_hw_ord = irdma_sysctl_max_ord;
        irdma_debug(&rf->sc_dev, IRDMA_DEBUG_INIT,
                    "using max_hw_ird = %d and max_hw_ord = %d\n",
                    rf->sc_dev.hw_attrs.max_hw_ird,
                    rf->sc_dev.hw_attrs.max_hw_ord);

        return 0;

clean_obj_mem:
        irdma_free_dma_mem(&rf->hw, &rf->obj_mem);
clean_msixtbl:
        kfree(rf->iw_msixtbl);
        rf->iw_msixtbl = NULL;
        return status;
}

/**
 * irdma_get_used_rsrc - determine resources used internally
 * @iwdev: irdma device
 *
 * Called at the end of open to get all internal allocations
 */
static void
irdma_get_used_rsrc(struct irdma_device *iwdev)
{
        iwdev->rf->used_pds = find_first_zero_bit(iwdev->rf->allocated_pds,
                                                  iwdev->rf->max_pd);
        iwdev->rf->used_qps = find_first_zero_bit(iwdev->rf->allocated_qps,
                                                  iwdev->rf->max_qp);
        iwdev->rf->used_cqs = find_first_zero_bit(iwdev->rf->allocated_cqs,
                                                  iwdev->rf->max_cq);
        iwdev->rf->used_mrs = find_first_zero_bit(iwdev->rf->allocated_mrs,
                                                  iwdev->rf->max_mr);
}

void
irdma_ctrl_deinit_hw(struct irdma_pci_f *rf)
{
        enum init_completion_state state = rf->init_state;

        rf->init_state = INVALID_STATE;
        if (rf->rsrc_created) {
                irdma_destroy_aeq(rf);
                irdma_destroy_pble_prm(rf->pble_rsrc);
                irdma_del_ceqs(rf);
                rf->rsrc_created = false;
        }

        switch (state) {
        case CEQ0_CREATED:
                irdma_del_ceq_0(rf);
                /* fallthrough */
        case CCQ_CREATED:
                irdma_destroy_ccq(rf);
                /* fallthrough */
        case HW_RSRC_INITIALIZED:
        case HMC_OBJS_CREATED:
                irdma_del_hmc_objects(&rf->sc_dev, rf->sc_dev.hmc_info, true,
                                      rf->reset, rf->rdma_ver);
                /* fallthrough */
        case CQP_CREATED:
                irdma_destroy_cqp(rf, !rf->reset);
                /* fallthrough */
        case INITIAL_STATE:
                irdma_del_init_mem(rf);
                break;
        case INVALID_STATE:
        default:
                irdma_dev_warn(&rf->iwdev->ibdev, "bad init_state = %d\n", rf->init_state);
                break;
        }
}

/**
 * irdma_rt_init_hw - Initializes runtime portion of HW
 * @iwdev: irdma device
 * @l2params: qos, tc, mtu info from netdev driver
 *
 * Create device queues ILQ, IEQ, CEQs and PBLEs. Setup irdma
 * device resource objects.
 */
int
irdma_rt_init_hw(struct irdma_device *iwdev,
                 struct irdma_l2params *l2params)
{
        struct irdma_pci_f *rf = iwdev->rf;
        struct irdma_sc_dev *dev = &rf->sc_dev;
        struct irdma_sc_qp qp = {{0}};
        struct irdma_vsi_init_info vsi_info = {0};
        struct irdma_vsi_stats_info stats_info = {0};
        int status;

        vsi_info.dev = dev;
        vsi_info.back_vsi = iwdev;
        vsi_info.params = l2params;
        vsi_info.pf_data_vsi_num = iwdev->vsi_num;
        vsi_info.register_qset = rf->gen_ops.register_qset;
        vsi_info.unregister_qset = rf->gen_ops.unregister_qset;
        vsi_info.exception_lan_q = 2;
        irdma_sc_vsi_init(&iwdev->vsi, &vsi_info);

        status = irdma_setup_cm_core(iwdev, rf->rdma_ver);
        if (status)
                return status;

        stats_info.pestat = kzalloc(sizeof(*stats_info.pestat), GFP_KERNEL);
        if (!stats_info.pestat) {
                irdma_cleanup_cm_core(&iwdev->cm_core);
                return -ENOMEM;
        }
        stats_info.fcn_id = dev->hmc_fn_id;
        status = irdma_vsi_stats_init(&iwdev->vsi, &stats_info);
        if (status) {
                irdma_cleanup_cm_core(&iwdev->cm_core);
                kfree(stats_info.pestat);
                return status;
        }

        do {
                if (!iwdev->roce_mode) {
                        status = irdma_initialize_ilq(iwdev);
                        if (status)
                                break;
                        iwdev->init_state = ILQ_CREATED;
                        status = irdma_initialize_ieq(iwdev);
                        if (status)
                                break;
                        iwdev->init_state = IEQ_CREATED;
                }
                if (iwdev->rf->en_rem_endpoint_trk) {
                        qp.dev = dev;
                        qp.qp_uk.qp_id = IRDMA_REM_ENDPOINT_TRK_QPID;
                        qp.qp_uk.qp_type = IRDMA_QP_TYPE_IWARP;
                        status = irdma_cqp_qp_create_cmd(dev, &qp);
                        if (status)
                                break;
                        iwdev->init_state = REM_ENDPOINT_TRK_CREATED;
                }
                if (!rf->rsrc_created) {
                        status = irdma_setup_ceqs(rf, &iwdev->vsi);
                        if (status)
                                break;

                        iwdev->init_state = CEQS_CREATED;

                        status = irdma_hmc_init_pble(&rf->sc_dev,
                                                     rf->pble_rsrc);
                        if (status) {
                                irdma_del_ceqs(rf);
                                break;
                        }

                        iwdev->init_state = PBLE_CHUNK_MEM;

                        status = irdma_setup_aeq(rf);
                        if (status) {
                                irdma_destroy_pble_prm(rf->pble_rsrc);
                                irdma_del_ceqs(rf);
                                break;
                        }
                        iwdev->init_state = AEQ_CREATED;
                        rf->rsrc_created = true;
                }

                if (iwdev->rf->sc_dev.hw_attrs.uk_attrs.hw_rev == IRDMA_GEN_1)
                        irdma_alloc_set_mac(iwdev);
                irdma_add_ip(iwdev);
                iwdev->init_state = IP_ADDR_REGISTERED;

                /*
                 * handles asynch cleanup tasks - disconnect CM , free qp, free cq bufs
                 */
                iwdev->cleanup_wq = alloc_workqueue("irdma-cleanup-wq",
                                                    WQ_UNBOUND, WQ_UNBOUND_MAX_ACTIVE);
                if (!iwdev->cleanup_wq)
                        return -ENOMEM;
                irdma_get_used_rsrc(iwdev);
                init_waitqueue_head(&iwdev->suspend_wq);

                return 0;
        } while (0);

        dev_err(&rf->pcidev->dev, "HW runtime init FAIL status = %d last cmpl = %d\n",
                status, iwdev->init_state);
        irdma_rt_deinit_hw(iwdev);

        return status;
}

/**
 * irdma_ctrl_init_hw - Initializes control portion of HW
 * @rf: RDMA PCI function
 *
 * Create admin queues, HMC obejcts and RF resource objects
 */
int
irdma_ctrl_init_hw(struct irdma_pci_f *rf)
{
        struct irdma_sc_dev *dev = &rf->sc_dev;
        int status;

        do {
                status = irdma_setup_init_state(rf);
                if (status)
                        break;
                rf->init_state = INITIAL_STATE;

                status = irdma_create_cqp(rf);
                if (status)
                        break;
                rf->init_state = CQP_CREATED;

                dev->feature_info[IRDMA_FEATURE_FW_INFO] = IRDMA_FW_VER_DEFAULT;
                if (rf->rdma_ver != IRDMA_GEN_1) {
                        status = irdma_get_rdma_features(dev);
                        if (status)
                                break;
                }

                status = irdma_hmc_setup(rf);
                if (status)
                        break;
                rf->init_state = HMC_OBJS_CREATED;

                status = irdma_initialize_hw_rsrc(rf);
                if (status)
                        break;
                rf->init_state = HW_RSRC_INITIALIZED;

                status = irdma_create_ccq(rf);
                if (status)
                        break;
                rf->init_state = CCQ_CREATED;

                status = irdma_setup_ceq_0(rf);
                if (status)
                        break;
                rf->init_state = CEQ0_CREATED;
                /* Handles processing of CQP completions */
                rf->cqp_cmpl_wq = alloc_ordered_workqueue("irdma-cqp_cmpl_wq",
                                                          WQ_HIGHPRI | WQ_UNBOUND);
                if (!rf->cqp_cmpl_wq) {
                        status = -ENOMEM;
                        break;
                }
                INIT_WORK(&rf->cqp_cmpl_work, cqp_compl_worker);
                irdma_sc_ccq_arm(dev->ccq);
                return 0;
        } while (0);

        pr_err("IRDMA hardware initialization FAILED init_state=%d status=%d\n",
               rf->init_state, status);
        irdma_ctrl_deinit_hw(rf);
        return status;
}

/**
 * irdma_set_hw_rsrc - set hw memory resources.
 * @rf: RDMA PCI function
 */
static void
irdma_set_hw_rsrc(struct irdma_pci_f *rf)
{
        rf->allocated_qps = (void *)(rf->mem_rsrc +
                                     (sizeof(struct irdma_arp_entry) * rf->arp_table_size));
        rf->allocated_cqs = &rf->allocated_qps[BITS_TO_LONGS(rf->max_qp)];
        rf->allocated_mrs = &rf->allocated_cqs[BITS_TO_LONGS(rf->max_cq)];
        rf->allocated_pds = &rf->allocated_mrs[BITS_TO_LONGS(rf->max_mr)];
        rf->allocated_ahs = &rf->allocated_pds[BITS_TO_LONGS(rf->max_pd)];
        rf->allocated_mcgs = &rf->allocated_ahs[BITS_TO_LONGS(rf->max_ah)];
        rf->allocated_arps = &rf->allocated_mcgs[BITS_TO_LONGS(rf->max_mcg)];

        rf->qp_table = (struct irdma_qp **)
            (&rf->allocated_arps[BITS_TO_LONGS(rf->arp_table_size)]);
        rf->cq_table = (struct irdma_cq **)(&rf->qp_table[rf->max_qp]);

        spin_lock_init(&rf->rsrc_lock);
        spin_lock_init(&rf->arp_lock);
        spin_lock_init(&rf->qptable_lock);
        spin_lock_init(&rf->cqtable_lock);
        spin_lock_init(&rf->qh_list_lock);
}

/**
 * irdma_calc_mem_rsrc_size - calculate memory resources size.
 * @rf: RDMA PCI function
 */
static u32 irdma_calc_mem_rsrc_size(struct irdma_pci_f *rf){
        u32 rsrc_size;

        rsrc_size = sizeof(struct irdma_arp_entry) * rf->arp_table_size;
        rsrc_size += sizeof(unsigned long) * BITS_TO_LONGS(rf->max_qp);
        rsrc_size += sizeof(unsigned long) * BITS_TO_LONGS(rf->max_mr);
        rsrc_size += sizeof(unsigned long) * BITS_TO_LONGS(rf->max_cq);
        rsrc_size += sizeof(unsigned long) * BITS_TO_LONGS(rf->max_pd);
        rsrc_size += sizeof(unsigned long) * BITS_TO_LONGS(rf->arp_table_size);
        rsrc_size += sizeof(unsigned long) * BITS_TO_LONGS(rf->max_ah);
        rsrc_size += sizeof(unsigned long) * BITS_TO_LONGS(rf->max_mcg);
        rsrc_size += sizeof(struct irdma_qp **) * rf->max_qp;
        rsrc_size += sizeof(struct irdma_cq **) * rf->max_cq;

        return rsrc_size;
}

/**
 * irdma_initialize_hw_rsrc - initialize hw resource tracking array
 * @rf: RDMA PCI function
 */
u32
irdma_initialize_hw_rsrc(struct irdma_pci_f *rf)
{
        u32 rsrc_size;
        u32 mrdrvbits;
        u32 ret;

        if (rf->rdma_ver != IRDMA_GEN_1) {
                rf->allocated_ws_nodes =
                    kcalloc(BITS_TO_LONGS(IRDMA_MAX_WS_NODES),
                            sizeof(unsigned long), GFP_KERNEL);
                if (!rf->allocated_ws_nodes)
                        return -ENOMEM;

                set_bit(0, rf->allocated_ws_nodes);
                rf->max_ws_node_id = IRDMA_MAX_WS_NODES;
        }
        rf->max_cqe = rf->sc_dev.hw_attrs.uk_attrs.max_hw_cq_size;
        rf->max_qp = rf->sc_dev.hmc_info->hmc_obj[IRDMA_HMC_IW_QP].cnt;
        rf->max_mr = rf->sc_dev.hmc_info->hmc_obj[IRDMA_HMC_IW_MR].cnt;
        rf->max_cq = rf->sc_dev.hmc_info->hmc_obj[IRDMA_HMC_IW_CQ].cnt;
        rf->max_pd = rf->sc_dev.hw_attrs.max_hw_pds;
        rf->arp_table_size = rf->sc_dev.hmc_info->hmc_obj[IRDMA_HMC_IW_ARP].cnt;
        rf->max_ah = rf->sc_dev.hmc_info->hmc_obj[IRDMA_HMC_IW_FSIAV].cnt;
        rf->max_mcg = rf->max_qp;

        rsrc_size = irdma_calc_mem_rsrc_size(rf);
        rf->mem_rsrc = vzalloc(rsrc_size);
        if (!rf->mem_rsrc) {
                ret = -ENOMEM;
                goto mem_rsrc_vmalloc_fail;
        }

        rf->arp_table = (struct irdma_arp_entry *)rf->mem_rsrc;

        irdma_set_hw_rsrc(rf);

        set_bit(0, rf->allocated_mrs);
        set_bit(0, rf->allocated_qps);
        set_bit(0, rf->allocated_cqs);
        set_bit(0, rf->allocated_pds);
        set_bit(0, rf->allocated_arps);
        set_bit(0, rf->allocated_ahs);
        set_bit(0, rf->allocated_mcgs);
        set_bit(2, rf->allocated_qps);  /* qp 2 IEQ */
        set_bit(1, rf->allocated_qps);  /* qp 1 ILQ */
        set_bit(IRDMA_REM_ENDPOINT_TRK_QPID, rf->allocated_qps);        /* qp 3 Remote Endpt trk */
        set_bit(1, rf->allocated_cqs);
        set_bit(1, rf->allocated_pds);
        set_bit(2, rf->allocated_cqs);
        set_bit(2, rf->allocated_pds);

        INIT_LIST_HEAD(&rf->mc_qht_list.list);
        /* stag index mask has a minimum of 14 bits */
        mrdrvbits = 24 - max(get_count_order(rf->max_mr), 14);
        rf->mr_stagmask = ~(((1 << mrdrvbits) - 1) << (32 - mrdrvbits));

        return 0;

mem_rsrc_vmalloc_fail:
        kfree(rf->allocated_ws_nodes);
        rf->allocated_ws_nodes = NULL;

        return ret;
}

/**
 * irdma_cqp_ce_handler - handle cqp completions
 * @rf: RDMA PCI function
 * @cq: cq for cqp completions
 */
void
irdma_cqp_ce_handler(struct irdma_pci_f *rf, struct irdma_sc_cq *cq)
{
        struct irdma_cqp_request *cqp_request;
        struct irdma_sc_dev *dev = &rf->sc_dev;
        u32 cqe_count = 0;
        struct irdma_ccq_cqe_info info;
        unsigned long flags;
        int ret;

        do {
                memset(&info, 0, sizeof(info));
                spin_lock_irqsave(&rf->cqp.compl_lock, flags);
                ret = irdma_sc_ccq_get_cqe_info(cq, &info);
                spin_unlock_irqrestore(&rf->cqp.compl_lock, flags);
                if (ret)
                        break;

                cqp_request = (struct irdma_cqp_request *)
                    (uintptr_t)info.scratch;
                if (info.error && irdma_cqp_crit_err(dev,
                                                     cqp_request->info.cqp_cmd,
                                                     info.maj_err_code,
                                                     info.min_err_code))
                        irdma_dev_err(&rf->iwdev->ibdev,
                                      "cqp opcode = 0x%x maj_err_code = 0x%x min_err_code = 0x%x\n",
                                      info.op_code, info.maj_err_code,
                                      info.min_err_code);
                if (cqp_request) {
                        cqp_request->compl_info.maj_err_code =
                            info.maj_err_code;
                        cqp_request->compl_info.min_err_code =
                            info.min_err_code;
                        cqp_request->compl_info.op_ret_val = info.op_ret_val;
                        cqp_request->compl_info.error = info.error;
                        irdma_complete_cqp_request(&rf->cqp, cqp_request);
                }

                cqe_count++;
        } while (1);

        if (cqe_count) {
                irdma_process_bh(dev);
                irdma_sc_ccq_arm(dev->ccq);
        }
}

/**
 * cqp_compl_worker - Handle cqp completions
 * @work: Pointer to work structure
 */
void
cqp_compl_worker(struct work_struct *work)
{
        struct irdma_pci_f *rf = container_of(work, struct irdma_pci_f,
                                              cqp_cmpl_work);
        struct irdma_sc_cq *cq = &rf->ccq.sc_cq;

        irdma_cqp_ce_handler(rf, cq);
}

/**
 * irdma_lookup_apbvt_entry - lookup hash table for an existing apbvt entry corresponding to port
 * @cm_core: cm's core
 * @port: port to identify apbvt entry
 */
static struct irdma_apbvt_entry *
irdma_lookup_apbvt_entry(struct irdma_cm_core *cm_core,
                         u16 port)
{
        struct irdma_apbvt_entry *entry;

        HASH_FOR_EACH_POSSIBLE(cm_core->apbvt_hash_tbl, entry, hlist, port) {
                if (entry->port == port) {
                        entry->use_cnt++;
                        return entry;
                }
        }

        return NULL;
}

/**
 * irdma_next_iw_state - modify qp state
 * @iwqp: iwarp qp to modify
 * @state: next state for qp
 * @del_hash: del hash
 * @term: term message
 * @termlen: length of term message
 */
void
irdma_next_iw_state(struct irdma_qp *iwqp, u8 state, u8 del_hash, u8 term,
                    u8 termlen)
{
        struct irdma_modify_qp_info info = {0};

        info.next_iwarp_state = state;
        info.remove_hash_idx = del_hash;
        info.cq_num_valid = true;
        info.arp_cache_idx_valid = true;
        info.dont_send_term = true;
        info.dont_send_fin = true;
        info.termlen = termlen;

        if (term & IRDMAQP_TERM_SEND_TERM_ONLY)
                info.dont_send_term = false;
        if (term & IRDMAQP_TERM_SEND_FIN_ONLY)
                info.dont_send_fin = false;
        if (iwqp->sc_qp.term_flags && state == IRDMA_QP_STATE_ERROR)
                info.reset_tcp_conn = true;
        iwqp->hw_iwarp_state = state;
        irdma_hw_modify_qp(iwqp->iwdev, iwqp, &info, 0);
        iwqp->iwarp_state = info.next_iwarp_state;
}

/**
 * irdma_del_local_mac_entry - remove a mac entry from the hw
 * table
 * @rf: RDMA PCI function
 * @idx: the index of the mac ip address to delete
 */
void
irdma_del_local_mac_entry(struct irdma_pci_f *rf, u16 idx)
{
        struct irdma_cqp *iwcqp = &rf->cqp;
        struct irdma_cqp_request *cqp_request;
        struct cqp_cmds_info *cqp_info;

        cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
        if (!cqp_request)
                return;

        cqp_info = &cqp_request->info;
        cqp_info->cqp_cmd = IRDMA_OP_DELETE_LOCAL_MAC_ENTRY;
        cqp_info->post_sq = 1;
        cqp_info->in.u.del_local_mac_entry.cqp = &iwcqp->sc_cqp;
        cqp_info->in.u.del_local_mac_entry.scratch = (uintptr_t)cqp_request;
        cqp_info->in.u.del_local_mac_entry.entry_idx = idx;
        cqp_info->in.u.del_local_mac_entry.ignore_ref_count = 0;

        irdma_handle_cqp_op(rf, cqp_request);
        irdma_put_cqp_request(iwcqp, cqp_request);
}

/**
 * irdma_add_local_mac_entry - add a mac ip address entry to the
 * hw table
 * @rf: RDMA PCI function
 * @mac_addr: pointer to mac address
 * @idx: the index of the mac ip address to add
 */
int
irdma_add_local_mac_entry(struct irdma_pci_f *rf, const u8 *mac_addr, u16 idx)
{
        struct irdma_local_mac_entry_info *info;
        struct irdma_cqp *iwcqp = &rf->cqp;
        struct irdma_cqp_request *cqp_request;
        struct cqp_cmds_info *cqp_info;
        int status;

        cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
        if (!cqp_request)
                return -ENOMEM;

        cqp_info = &cqp_request->info;
        cqp_info->post_sq = 1;
        info = &cqp_info->in.u.add_local_mac_entry.info;
        ether_addr_copy(info->mac_addr, mac_addr);
        info->entry_idx = idx;
        cqp_info->in.u.add_local_mac_entry.scratch = (uintptr_t)cqp_request;
        cqp_info->cqp_cmd = IRDMA_OP_ADD_LOCAL_MAC_ENTRY;
        cqp_info->in.u.add_local_mac_entry.cqp = &iwcqp->sc_cqp;
        cqp_info->in.u.add_local_mac_entry.scratch = (uintptr_t)cqp_request;
        cqp_info->create = true;

        status = irdma_handle_cqp_op(rf, cqp_request);
        irdma_put_cqp_request(iwcqp, cqp_request);

        return status;
}

/**
 * irdma_alloc_local_mac_entry - allocate a mac entry
 * @rf: RDMA PCI function
 * @mac_tbl_idx: the index of the new mac address
 *
 * Allocate a mac address entry and update the mac_tbl_idx
 * to hold the index of the newly created mac address
 * Return 0 if successful, otherwise return error
 */
int
irdma_alloc_local_mac_entry(struct irdma_pci_f *rf, u16 *mac_tbl_idx)
{
        struct irdma_cqp *iwcqp = &rf->cqp;
        struct irdma_cqp_request *cqp_request;
        struct cqp_cmds_info *cqp_info;
        int status = 0;

        cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, true);
        if (!cqp_request)
                return -ENOMEM;

        cqp_info = &cqp_request->info;
        cqp_info->cqp_cmd = IRDMA_OP_ALLOC_LOCAL_MAC_ENTRY;
        cqp_info->post_sq = 1;
        cqp_info->in.u.alloc_local_mac_entry.cqp = &iwcqp->sc_cqp;
        cqp_info->in.u.alloc_local_mac_entry.scratch = (uintptr_t)cqp_request;
        cqp_info->create = true;

        status = irdma_handle_cqp_op(rf, cqp_request);
        if (!status)
                *mac_tbl_idx = (u16)cqp_request->compl_info.op_ret_val;

        irdma_put_cqp_request(iwcqp, cqp_request);

        return status;
}

/**
 * irdma_cqp_manage_apbvt_cmd - send cqp command manage apbvt
 * @iwdev: irdma device
 * @accel_local_port: port for apbvt
 * @add_port: add ordelete port
 */
static int
irdma_cqp_manage_apbvt_cmd(struct irdma_device *iwdev,
                           u16 accel_local_port, bool add_port)
{
        struct irdma_apbvt_info *info;
        struct irdma_cqp_request *cqp_request;
        struct cqp_cmds_info *cqp_info;
        int status;

        cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, add_port);
        if (!cqp_request)
                return -ENOMEM;

        cqp_info = &cqp_request->info;
        info = &cqp_info->in.u.manage_apbvt_entry.info;
        info->add = add_port;
        info->port = accel_local_port;
        cqp_info->cqp_cmd = IRDMA_OP_MANAGE_APBVT_ENTRY;
        cqp_info->post_sq = 1;
        cqp_info->in.u.manage_apbvt_entry.cqp = &iwdev->rf->cqp.sc_cqp;
        cqp_info->in.u.manage_apbvt_entry.scratch = (uintptr_t)cqp_request;
        irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_DEV,
                    "%s: port=0x%04x\n", (!add_port) ? "DELETE" : "ADD",
                    accel_local_port);

        status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
        irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);

        return status;
}

/**
 * irdma_add_apbvt - add tcp port to HW apbvt table
 * @iwdev: irdma device
 * @port: port for apbvt
 */
struct irdma_apbvt_entry *
irdma_add_apbvt(struct irdma_device *iwdev, u16 port)
{
        struct irdma_cm_core *cm_core = &iwdev->cm_core;
        struct irdma_apbvt_entry *entry;
        unsigned long flags;

        spin_lock_irqsave(&cm_core->apbvt_lock, flags);
        entry = irdma_lookup_apbvt_entry(cm_core, port);
        if (entry) {
                spin_unlock_irqrestore(&cm_core->apbvt_lock, flags);
                return entry;
        }

        entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
        if (!entry) {
                spin_unlock_irqrestore(&cm_core->apbvt_lock, flags);
                return NULL;
        }

        entry->port = port;
        entry->use_cnt = 1;
        HASH_ADD(cm_core->apbvt_hash_tbl, &entry->hlist, entry->port);
        spin_unlock_irqrestore(&cm_core->apbvt_lock, flags);

        if (irdma_cqp_manage_apbvt_cmd(iwdev, port, true)) {
                kfree(entry);
                return NULL;
        }

        return entry;
}

/**
 * irdma_del_apbvt - delete tcp port from HW apbvt table
 * @iwdev: irdma device
 * @entry: apbvt entry object
 */
void
irdma_del_apbvt(struct irdma_device *iwdev,
                struct irdma_apbvt_entry *entry)
{
        struct irdma_cm_core *cm_core = &iwdev->cm_core;
        unsigned long flags;

        spin_lock_irqsave(&cm_core->apbvt_lock, flags);
        if (--entry->use_cnt) {
                spin_unlock_irqrestore(&cm_core->apbvt_lock, flags);
                return;
        }

        HASH_DEL(cm_core->apbvt_hash_tbl, &entry->hlist);
        /*
         * apbvt_lock is held across CQP delete APBVT OP (non-waiting) to protect against race where add APBVT CQP can
         * race ahead of the delete APBVT for same port.
         */
        irdma_cqp_manage_apbvt_cmd(iwdev, entry->port, false);
        kfree(entry);
        spin_unlock_irqrestore(&cm_core->apbvt_lock, flags);
}

void
irdma_arp_cqp_op(struct irdma_pci_f *rf, u16 arp_index,
                 const unsigned char *mac_addr, u32 action)
{
        struct irdma_add_arp_cache_entry_info *info;
        struct irdma_cqp_request *cqp_request;
        struct cqp_cmds_info *cqp_info;

        cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, false);
        if (!cqp_request)
                return;

        cqp_info = &cqp_request->info;
        if (action == IRDMA_ARP_ADD_UPDATE) {
                cqp_info->cqp_cmd = IRDMA_OP_ADD_ARP_CACHE_ENTRY;
                info = &cqp_info->in.u.add_arp_cache_entry.info;
                info->arp_index = (u16)arp_index;
                info->permanent = true;
                ether_addr_copy(info->mac_addr, mac_addr);
                cqp_info->in.u.add_arp_cache_entry.scratch =
                    (uintptr_t)cqp_request;
                cqp_info->in.u.add_arp_cache_entry.cqp = &rf->cqp.sc_cqp;
        } else {
                cqp_info->cqp_cmd = IRDMA_OP_DELETE_ARP_CACHE_ENTRY;
                cqp_info->in.u.del_arp_cache_entry.scratch =
                    (uintptr_t)cqp_request;
                cqp_info->in.u.del_arp_cache_entry.cqp = &rf->cqp.sc_cqp;
                cqp_info->in.u.del_arp_cache_entry.arp_index = arp_index;
        }

        cqp_info->post_sq = 1;
        irdma_handle_cqp_op(rf, cqp_request);
        irdma_put_cqp_request(&rf->cqp, cqp_request);
}

/**
 * irdma_manage_arp_cache - manage hw arp cache
 * @rf: RDMA PCI function
 * @mac_addr: mac address ptr
 * @ip_addr: ip addr for arp cache
 * @action: add, delete or modify
 */
void
irdma_manage_arp_cache(struct irdma_pci_f *rf, const unsigned char *mac_addr,
                       u32 *ip_addr, u32 action)
{
        int arp_index;

        arp_index = irdma_arp_table(rf, ip_addr, mac_addr, action);
        if (arp_index == -1)
                return;

        irdma_arp_cqp_op(rf, (u16)arp_index, mac_addr, action);
}

/**
 * irdma_send_syn_cqp_callback - do syn/ack after qhash
 * @cqp_request: qhash cqp completion
 */
static void
irdma_send_syn_cqp_callback(struct irdma_cqp_request *cqp_request)
{
        struct irdma_cm_node *cm_node = cqp_request->param;

        irdma_send_syn(cm_node, 1);
        irdma_rem_ref_cmnode(cm_node);
}

/**
 * irdma_qhash_info_prepare - fill info for qhash op
 * @iwdev: irdma device
 * @cqp_info: cqp info
 * @cminfo: cm info for qhash
 * @etype: type (syn or quad)
 * @mtype: type of qhash
 */
static void
irdma_qhash_info_prepare(struct irdma_device *iwdev,
                         struct cqp_cmds_info *cqp_info,
                         struct irdma_cm_info *cminfo,
                         enum irdma_quad_entry_type etype,
                         enum irdma_quad_hash_manage_type mtype)
{
        struct irdma_qhash_table_info *info;

        info = &cqp_info->in.u.manage_qhash_table_entry.info;
        info->vsi = &iwdev->vsi;
        info->manage = mtype;
        info->entry_type = etype;
        if (cminfo->vlan_id < VLAN_N_VID) {
                info->vlan_valid = true;
                info->vlan_id = cminfo->vlan_id;
        } else {
                info->vlan_valid = false;
        }
        info->ipv4_valid = cminfo->ipv4;
        info->user_pri = cminfo->user_pri;
        ether_addr_copy(info->mac_addr, if_getlladdr(iwdev->netdev));
        info->qp_num = cminfo->qh_qpid;
        info->dest_port = cminfo->loc_port;
        info->dest_ip[0] = cminfo->loc_addr[0];
        info->dest_ip[1] = cminfo->loc_addr[1];
        info->dest_ip[2] = cminfo->loc_addr[2];
        info->dest_ip[3] = cminfo->loc_addr[3];
        if (etype == IRDMA_QHASH_TYPE_TCP_ESTABLISHED ||
            etype == IRDMA_QHASH_TYPE_UDP_UNICAST ||
            etype == IRDMA_QHASH_TYPE_UDP_MCAST ||
            etype == IRDMA_QHASH_TYPE_ROCE_MCAST ||
            etype == IRDMA_QHASH_TYPE_ROCEV2_HW) {
                info->src_port = cminfo->rem_port;
                info->src_ip[0] = cminfo->rem_addr[0];
                info->src_ip[1] = cminfo->rem_addr[1];
                info->src_ip[2] = cminfo->rem_addr[2];
                info->src_ip[3] = cminfo->rem_addr[3];
        }
        cqp_info->cqp_cmd = IRDMA_OP_MANAGE_QHASH_TABLE_ENTRY;
        cqp_info->post_sq = 1;
}

/**
 * irdma_add_qhash_wait_no_lock - add qhash, blocking w/o lock
 * @iwdev: irdma device
 * @cminfo: cm info for qhash
 */
int
irdma_add_qhash_wait_no_lock(struct irdma_device *iwdev,
                             struct irdma_cm_info *cminfo)
{
        struct irdma_qhash_table_info *info;
        struct irdma_cqp *iwcqp = &iwdev->rf->cqp;
        struct irdma_cqp_request *cqp_request;
        struct cqp_cmds_info *cqp_info;
        int cnt = iwdev->rf->sc_dev.hw_attrs.max_cqp_compl_wait_time_ms * CQP_TIMEOUT_THRESHOLD;
        int status;
        int ret_val;

        cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, false);
        if (!cqp_request)
                return -ENOMEM;

        cqp_info = &cqp_request->info;
        info = &cqp_info->in.u.manage_qhash_table_entry.info;
        irdma_qhash_info_prepare(iwdev, cqp_info, cminfo, IRDMA_QHASH_TYPE_TCP_SYN,
                                 IRDMA_QHASH_MANAGE_TYPE_ADD);
        if (info->ipv4_valid)
                irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_CM,
                            "ADD caller: %pS loc_port=0x%04x rem_port=0x%04x loc_addr=%x rem_addr=%x mac=%x:%x:%x:%x:%x:%x, vlan_id=%d\n",
                            __builtin_return_address(0), info->src_port,
                            info->dest_port, info->src_ip[0], info->dest_ip[0],
                            info->mac_addr[0], info->mac_addr[1],
                            info->mac_addr[2], info->mac_addr[3],
                            info->mac_addr[4], info->mac_addr[5],
                            cminfo->vlan_id);
        else
                irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_CM,
                            "ADD caller: %pS loc_port=0x%04x rem_port=0x%04x loc_addr=%x:%x:%x:%x rem_addr=%x:%x:%x:%x mac=%x:%x:%x:%x:%x:%x, vlan_id=%d\n",
                            __builtin_return_address(0), info->src_port,
                            info->dest_port, IRDMA_PRINT_IP6(info->src_ip),
                            IRDMA_PRINT_IP6(info->dest_ip), info->mac_addr[0],
                            info->mac_addr[1], info->mac_addr[2],
                            info->mac_addr[3], info->mac_addr[4],
                            info->mac_addr[5], cminfo->vlan_id);

        cqp_info->in.u.manage_qhash_table_entry.cqp = &iwdev->rf->cqp.sc_cqp;
        cqp_info->in.u.manage_qhash_table_entry.scratch = (uintptr_t)cqp_request;
        status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
        if (status) {
                irdma_put_cqp_request(iwcqp, cqp_request);
                irdma_dev_warn(&iwdev->ibdev, "manage_qhash cqp op failure %d\n", status);
                return status;
        }

        do {
                irdma_cqp_ce_handler(iwdev->rf, &iwdev->rf->ccq.sc_cq);
                mdelay(1);
        } while (!READ_ONCE(cqp_request->request_done) && --cnt);

        ret_val = cqp_request->compl_info.op_ret_val;
        status = (cnt) ? ret_val : -ETIMEDOUT;

        irdma_put_cqp_request(iwcqp, cqp_request);

        return status;
}

/**
 * irdma_manage_qhash - add or modify qhash
 * @iwdev: irdma device
 * @cminfo: cm info for qhash
 * @etype: type (syn or quad)
 * @mtype: type of qhash
 * @cmnode: cmnode associated with connection
 * @wait: wait for completion
 */
int
irdma_manage_qhash(struct irdma_device *iwdev, struct irdma_cm_info *cminfo,
                   enum irdma_quad_entry_type etype,
                   enum irdma_quad_hash_manage_type mtype, void *cmnode,
                   bool wait)
{
        struct irdma_qhash_table_info *info;
        struct irdma_cqp *iwcqp = &iwdev->rf->cqp;
        struct irdma_cqp_request *cqp_request;
        struct cqp_cmds_info *cqp_info;
        struct irdma_cm_node *cm_node = cmnode;
        int status;

        cqp_request = irdma_alloc_and_get_cqp_request(iwcqp, wait);
        if (!cqp_request)
                return -ENOMEM;

        cqp_info = &cqp_request->info;
        info = &cqp_info->in.u.manage_qhash_table_entry.info;
        irdma_qhash_info_prepare(iwdev, cqp_info, cminfo, etype, mtype);
        if (cmnode) {
                cqp_request->callback_fcn = irdma_send_syn_cqp_callback;
                cqp_request->param = cmnode;
                if (!wait)
                        irdma_add_ref_cmnode(cm_node);
        }
        if (info->ipv4_valid)
                irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_CM,
                            "%s caller: %pS loc_port=0x%04x rem_port=0x%04x loc_addr=%x rem_addr=%x mac=%x:%x:%x:%x:%x:%x, vlan_id=%d cm_node=%p\n",
                            (!mtype) ? "DELETE" : "ADD",
                            __builtin_return_address(0), info->src_port,
                            info->dest_port, info->src_ip[0], info->dest_ip[0],
                            info->mac_addr[0], info->mac_addr[1],
                            info->mac_addr[2], info->mac_addr[3],
                            info->mac_addr[4], info->mac_addr[5],
                            cminfo->vlan_id, cmnode ? cmnode : NULL);
        else
                irdma_debug(&iwdev->rf->sc_dev, IRDMA_DEBUG_CM,
                            "%s caller: %pS loc_port=0x%04x rem_port=0x%04x loc_addr=%x:%x:%x:%x rem_addr=%x:%x:%x:%x mac=%x:%x:%x:%x:%x:%x, vlan_id=%d cm_node=%p\n",
                            (!mtype) ? "DELETE" : "ADD",
                            __builtin_return_address(0), info->src_port,
                            info->dest_port, IRDMA_PRINT_IP6(info->src_ip),
                            IRDMA_PRINT_IP6(info->dest_ip), info->mac_addr[0],
                            info->mac_addr[1], info->mac_addr[2],
                            info->mac_addr[3], info->mac_addr[4],
                            info->mac_addr[5], cminfo->vlan_id,
                            cmnode ? cmnode : NULL);

        cqp_info->in.u.manage_qhash_table_entry.cqp = &iwdev->rf->cqp.sc_cqp;
        cqp_info->in.u.manage_qhash_table_entry.scratch = (uintptr_t)cqp_request;
        status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
        if (status && cm_node && !wait)
                irdma_rem_ref_cmnode(cm_node);

        irdma_put_cqp_request(iwcqp, cqp_request);

        return status;
}

/**
 * irdma_hw_flush_wqes - flush qp's wqe
 * @rf: RDMA PCI function
 * @qp: hardware control qp
 * @info: info for flush
 * @wait: flag wait for completion
 */
int
irdma_hw_flush_wqes(struct irdma_pci_f *rf, struct irdma_sc_qp *qp,
                    struct irdma_qp_flush_info *info, bool wait)
{
        int status;
        struct irdma_qp_flush_info *hw_info;
        struct irdma_cqp_request *cqp_request;
        struct cqp_cmds_info *cqp_info;
        struct irdma_qp *iwqp = qp->qp_uk.back_qp;

        cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
        if (!cqp_request)
                return -ENOMEM;

        cqp_info = &cqp_request->info;
        hw_info = &cqp_request->info.in.u.qp_flush_wqes.info;
        memcpy(hw_info, info, sizeof(*hw_info));
        cqp_info->cqp_cmd = IRDMA_OP_QP_FLUSH_WQES;
        cqp_info->post_sq = 1;
        cqp_info->in.u.qp_flush_wqes.qp = qp;
        cqp_info->in.u.qp_flush_wqes.scratch = (uintptr_t)cqp_request;
        status = irdma_handle_cqp_op(rf, cqp_request);
        if (status) {
                qp->qp_uk.sq_flush_complete = true;
                qp->qp_uk.rq_flush_complete = true;
                irdma_put_cqp_request(&rf->cqp, cqp_request);
                return status;
        }

        if (!wait || cqp_request->compl_info.maj_err_code)
                goto put_cqp;

        if (info->rq) {
                if (cqp_request->compl_info.min_err_code == IRDMA_CQP_COMPL_SQ_WQE_FLUSHED ||
                    cqp_request->compl_info.min_err_code == 0) {
                        /* RQ WQE flush was requested but did not happen */
                        qp->qp_uk.rq_flush_complete = true;
                }
        }
        if (info->sq) {
                if (cqp_request->compl_info.min_err_code == IRDMA_CQP_COMPL_RQ_WQE_FLUSHED ||
                    cqp_request->compl_info.min_err_code == 0) {
                        /* SQ WQE flush was requested but did not happen */
                        qp->qp_uk.sq_flush_complete = true;
                }
        }

        irdma_debug(&rf->sc_dev, IRDMA_DEBUG_VERBS,
                    "qp_id=%d qp_type=%d qpstate=%d ibqpstate=%d last_aeq=%d hw_iw_state=%d maj_err_code=%d min_err_code=%d\n",
                    iwqp->ibqp.qp_num, rf->protocol_used, iwqp->iwarp_state,
                    iwqp->ibqp_state, iwqp->last_aeq, iwqp->hw_iwarp_state,
                    cqp_request->compl_info.maj_err_code,
                    cqp_request->compl_info.min_err_code);
put_cqp:
        irdma_put_cqp_request(&rf->cqp, cqp_request);

        return status;
}

/**
 * irdma_gen_ae - generate AE
 * @rf: RDMA PCI function
 * @qp: qp associated with AE
 * @info: info for ae
 * @wait: wait for completion
 */
void
irdma_gen_ae(struct irdma_pci_f *rf, struct irdma_sc_qp *qp,
             struct irdma_gen_ae_info *info, bool wait)
{
        struct irdma_gen_ae_info *ae_info;
        struct irdma_cqp_request *cqp_request;
        struct cqp_cmds_info *cqp_info;

        cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, wait);
        if (!cqp_request)
                return;

        cqp_info = &cqp_request->info;
        ae_info = &cqp_request->info.in.u.gen_ae.info;
        memcpy(ae_info, info, sizeof(*ae_info));
        cqp_info->cqp_cmd = IRDMA_OP_GEN_AE;
        cqp_info->post_sq = 1;
        cqp_info->in.u.gen_ae.qp = qp;
        cqp_info->in.u.gen_ae.scratch = (uintptr_t)cqp_request;

        irdma_handle_cqp_op(rf, cqp_request);
        irdma_put_cqp_request(&rf->cqp, cqp_request);
}

void
irdma_flush_wqes(struct irdma_qp *iwqp, u32 flush_mask)
{
        struct irdma_qp_flush_info info = {0};
        struct irdma_pci_f *rf = iwqp->iwdev->rf;
        u8 flush_code = iwqp->sc_qp.flush_code;

        if (!(flush_mask & IRDMA_FLUSH_SQ) && !(flush_mask & IRDMA_FLUSH_RQ))
                return;

        if (atomic_cmpxchg(&iwqp->flush_issued, 0, 1))
                return;

        /* Set flush info fields */
        info.sq = flush_mask & IRDMA_FLUSH_SQ;
        info.rq = flush_mask & IRDMA_FLUSH_RQ;

        /* Generate userflush errors in CQE */
        info.sq_major_code = IRDMA_FLUSH_MAJOR_ERR;
        info.sq_minor_code = FLUSH_GENERAL_ERR;
        info.rq_major_code = IRDMA_FLUSH_MAJOR_ERR;
        info.rq_minor_code = FLUSH_GENERAL_ERR;
        info.userflushcode = true;

        if (flush_mask & IRDMA_REFLUSH) {
                if (info.sq)
                        iwqp->sc_qp.flush_sq = false;
                if (info.rq)
                        iwqp->sc_qp.flush_rq = false;
        } else {
                if (flush_code) {
                        if (info.sq && iwqp->sc_qp.sq_flush_code)
                                info.sq_minor_code = flush_code;
                        if (info.rq && iwqp->sc_qp.rq_flush_code)
                                info.rq_minor_code = flush_code;
                }
                if (irdma_upload_context &&
                    irdma_upload_qp_context(rf, iwqp->sc_qp.qp_uk.qp_id,
                                            iwqp->sc_qp.qp_uk.qp_type, 0, 1))
                        irdma_dev_warn(&iwqp->iwdev->ibdev, "failed to upload QP context\n");
                if (!iwqp->user_mode)
                        irdma_sched_qp_flush_work(iwqp);
        }

        /* Issue flush */
        (void)irdma_hw_flush_wqes(rf, &iwqp->sc_qp, &info,
                                  flush_mask & IRDMA_FLUSH_WAIT);
}