diff options
Diffstat (limited to 'drivers/infiniband/hw/irdma/hw.c')
| -rw-r--r-- | drivers/infiniband/hw/irdma/hw.c | 2734 |
1 files changed, 2734 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/irdma/hw.c b/drivers/infiniband/hw/irdma/hw.c new file mode 100644 index 000000000..311a1138e --- /dev/null +++ b/drivers/infiniband/hw/irdma/hw.c @@ -0,0 +1,2734 @@ +// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB +/* Copyright (c) 2015 - 2021 Intel Corporation */ +#include "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) { + ibdev_dbg(to_ibdev(dev), "ERR: puda status = %d\n", status); + break; + } + if (compl_error) { + ibdev_dbg(to_ibdev(dev), "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) { + 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) +{ + qp->sq_flush_code = info->sq; + qp->rq_flush_code = info->rq; + qp->event_type = IRDMA_QP_EVENT_CATASTROPHIC; + + switch (info->ae_id) { + case IRDMA_AE_AMP_BOUNDS_VIOLATION: + case IRDMA_AE_AMP_INVALID_STAG: + case IRDMA_AE_AMP_RIGHTS_VIOLATION: + case IRDMA_AE_AMP_UNALLOCATED_STAG: + case IRDMA_AE_AMP_BAD_PD: + case IRDMA_AE_AMP_BAD_QP: + case IRDMA_AE_AMP_BAD_STAG_KEY: + case IRDMA_AE_AMP_BAD_STAG_INDEX: + case IRDMA_AE_AMP_TO_WRAP: + case IRDMA_AE_PRIV_OPERATION_DENIED: + qp->flush_code = FLUSH_PROT_ERR; + qp->event_type = IRDMA_QP_EVENT_ACCESS_ERR; + break; + case IRDMA_AE_UDA_XMIT_BAD_PD: + case IRDMA_AE_WQE_UNEXPECTED_OPCODE: + qp->flush_code = FLUSH_LOC_QP_OP_ERR; + qp->event_type = IRDMA_QP_EVENT_CATASTROPHIC; + break; + case IRDMA_AE_UDA_XMIT_DGRAM_TOO_LONG: + case IRDMA_AE_UDA_XMIT_DGRAM_TOO_SHORT: + case IRDMA_AE_UDA_L4LEN_INVALID: + case IRDMA_AE_DDP_UBE_INVALID_MO: + case IRDMA_AE_DDP_UBE_DDP_MESSAGE_TOO_LONG_FOR_AVAILABLE_BUFFER: + qp->flush_code = FLUSH_LOC_LEN_ERR; + qp->event_type = IRDMA_QP_EVENT_CATASTROPHIC; + break; + case IRDMA_AE_AMP_INVALIDATE_NO_REMOTE_ACCESS_RIGHTS: + case IRDMA_AE_IB_REMOTE_ACCESS_ERROR: + qp->flush_code = FLUSH_REM_ACCESS_ERR; + qp->event_type = IRDMA_QP_EVENT_ACCESS_ERR; + break; + case IRDMA_AE_LLP_SEGMENT_TOO_SMALL: + case IRDMA_AE_LLP_RECEIVED_MPA_CRC_ERROR: + case IRDMA_AE_ROCE_RSP_LENGTH_ERROR: + case IRDMA_AE_IB_REMOTE_OP_ERROR: + qp->flush_code = FLUSH_REM_OP_ERR; + qp->event_type = IRDMA_QP_EVENT_CATASTROPHIC; + break; + case IRDMA_AE_LCE_QP_CATASTROPHIC: + qp->flush_code = FLUSH_FATAL_ERR; + qp->event_type = IRDMA_QP_EVENT_CATASTROPHIC; + break; + case IRDMA_AE_IB_RREQ_AND_Q1_FULL: + qp->flush_code = FLUSH_GENERAL_ERR; + break; + case IRDMA_AE_LLP_TOO_MANY_RETRIES: + qp->flush_code = FLUSH_RETRY_EXC_ERR; + qp->event_type = IRDMA_QP_EVENT_CATASTROPHIC; + break; + case IRDMA_AE_AMP_MWBIND_INVALID_RIGHTS: + case IRDMA_AE_AMP_MWBIND_BIND_DISABLED: + case IRDMA_AE_AMP_MWBIND_INVALID_BOUNDS: + case IRDMA_AE_AMP_MWBIND_VALID_STAG: + qp->flush_code = FLUSH_MW_BIND_ERR; + qp->event_type = IRDMA_QP_EVENT_ACCESS_ERR; + break; + case IRDMA_AE_IB_INVALID_REQUEST: + qp->flush_code = FLUSH_REM_INV_REQ_ERR; + qp->event_type = IRDMA_QP_EVENT_REQ_ERR; + break; + default: + qp->flush_code = FLUSH_GENERAL_ERR; + qp->event_type = IRDMA_QP_EVENT_CATASTROPHIC; + break; + } +} + +/** + * irdma_process_aeq - handle aeq events + * @rf: RDMA PCI function + */ +static void 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_sc_cq *cq = NULL; + struct irdma_cq *iwcq = NULL; + struct irdma_sc_qp *qp = NULL; + struct irdma_qp_host_ctx_info *ctx_info = NULL; + struct irdma_device *iwdev = rf->iwdev; + unsigned long flags; + + u32 aeqcnt = 0; + + if (!sc_aeq->size) + return; + + do { + memset(info, 0, sizeof(*info)); + ret = irdma_sc_get_next_aeqe(sc_aeq, info); + if (ret) + break; + + aeqcnt++; + ibdev_dbg(&iwdev->ibdev, + "AEQ: ae_id = 0x%x bool qp=%d qp_id = %d tcp_state=%d iwarp_state=%d ae_src=%d\n", + 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) { + atomic_dec(&iwdev->vsi.qp_suspend_reqs); + wake_up(&iwdev->suspend_wq); + continue; + } + ibdev_dbg(&iwdev->ibdev, "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; + 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: + case IRDMA_AE_RDMAP_ROE_BAD_LLP_CLOSE: + 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->hw_tcp_state == IRDMA_TCP_STATE_CLOSE_WAIT && + 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(&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_CQ_OPERATION_ERROR: + ibdev_err(&iwdev->ibdev, + "Processing an iWARP related AE for CQ misc = 0x%04X\n", + info->ae_id); + cq = (struct irdma_sc_cq *)(unsigned long) + info->compl_ctx; + + iwcq = cq->back_cq; + + 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); + } + break; + case IRDMA_AE_RESET_NOT_SENT: + case IRDMA_AE_LLP_DOUBT_REACHABILITY: + case IRDMA_AE_RESOURCE_EXHAUSTION: + break; + case IRDMA_AE_PRIV_OPERATION_DENIED: + 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_LCE_CQ_CATASTROPHIC: + case IRDMA_AE_UDA_XMIT_DGRAM_TOO_LONG: + default: + ibdev_err(&iwdev->ibdev, "abnormal ae_id = 0x%x bool qp=%d qp_id = %d, ae_src=%d\n", + info->ae_id, info->qp, info->qp_cq_id, info->ae_src); + if (rdma_protocol_roce(&iwdev->ibdev, 1)) { + ctx_info->roce_info->err_rq_idx_valid = info->rq; + 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->rq; + 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); +} + +/** + * 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_dpc - tasklet for aeq and ceq 0 + * @t: tasklet_struct ptr + */ +static void irdma_dpc(struct tasklet_struct *t) +{ + struct irdma_pci_f *rf = from_tasklet(rf, 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_dpc - dpc handler for CEQ + * @t: tasklet_struct ptr + */ +static void irdma_ceq_dpc(struct tasklet_struct *t) +{ + struct irdma_ceq *iwceq = from_tasklet(iwceq, 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; + struct msix_entry *pmsix; + u32 ceq_idx; + u32 i; + size_t size; + + if (!rf->msix_count) + return -EINVAL; + + size = sizeof(struct irdma_msix_vector) * rf->msix_count; + size += struct_size(iw_qvlist, qv_info, rf->msix_count); + 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; + + pmsix = rf->msix_entries; + for (i = 0, ceq_idx = 0; i < rf->msix_count; i++, iw_qvinfo++) { + rf->iw_msixtbl[i].idx = pmsix->entry; + rf->iw_msixtbl[i].irq = pmsix->vector; + 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 = 3; + iw_qvinfo->v_idx = rf->iw_msixtbl[i].idx; + pmsix++; + } + + return 0; +} + +/** + * irdma_irq_handler - interrupt handler for aeq and ceq0 + * @irq: Interrupt request number + * @data: RDMA PCI function + */ +static irqreturn_t irdma_irq_handler(int irq, void *data) +{ + struct irdma_pci_f *rf = data; + + tasklet_schedule(&rf->dpc_tasklet); + + return IRQ_HANDLED; +} + +/** + * irdma_ceq_handler - interrupt handler for ceq + * @irq: interrupt request number + * @data: ceq pointer + */ +static irqreturn_t irdma_ceq_handler(int irq, void *data) +{ + struct irdma_ceq *iwceq = data; + + if (iwceq->irq != irq) + ibdev_err(to_ibdev(&iwceq->rf->sc_dev), "expected irq = %d received irq = %d\n", + iwceq->irq, irq); + tasklet_schedule(&iwceq->dpc_tasklet); + + return IRQ_HANDLED; +} + +/** + * 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); + irq_update_affinity_hint(msix_vec->irq, NULL); + free_irq(msix_vec->irq, dev_id); +} + +/** + * 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) +{ + struct irdma_sc_dev *dev = &rf->sc_dev; + struct irdma_cqp *cqp = &rf->cqp; + int status = 0; + + status = irdma_sc_cqp_destroy(dev->cqp); + if (status) + ibdev_dbg(to_ibdev(dev), "ERR: Destroy CQP failed %d\n", status); + + irdma_cleanup_pending_cqp_op(rf); + dma_free_coherent(dev->hw->device, cqp->sq.size, cqp->sq.va, + cqp->sq.pa); + cqp->sq.va = NULL; + 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) + ibdev_dbg(to_ibdev(dev), "ERR: Destroy AEQ failed %d\n", status); + +exit: + if (aeq->virtual_map) { + irdma_destroy_virt_aeq(rf); + } else { + dma_free_coherent(dev->hw->device, aeq->mem.size, aeq->mem.va, + aeq->mem.pa); + aeq->mem.va = NULL; + } +} + +/** + * 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) { + ibdev_dbg(to_ibdev(dev), "ERR: CEQ destroy command failed %d\n", status); + goto exit; + } + + status = irdma_sc_cceq_destroy_done(&iwceq->sc_ceq); + if (status) + ibdev_dbg(to_ibdev(dev), "ERR: CEQ destroy completion failed %d\n", + status); +exit: + dma_free_coherent(dev->hw->device, iwceq->mem.size, iwceq->mem.va, + iwceq->mem.pa); + iwceq->mem.va = NULL; +} + +/** + * 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); + dma_free_coherent(rf->sc_dev.hw->device, iwceq->mem.size, + iwceq->mem.va, iwceq->mem.pa); + iwceq->mem.va = NULL; + } + 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) + ibdev_dbg(to_ibdev(dev), "ERR: CCQ destroy failed %d\n", status); + dma_free_coherent(dev->hw->device, ccq->mem_cq.size, ccq->mem_cq.va, + ccq->mem_cq.pa); + ccq->mem_cq.va = NULL; +} + +/** + * 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 = {}; + + 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)) + ibdev_dbg(to_ibdev(dev), "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 + */ +static 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 = {}; + 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) { + ibdev_dbg(to_ibdev(dev), + "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_2048; + struct irdma_dma_mem mem; + struct irdma_sc_dev *dev = &rf->sc_dev; + struct irdma_cqp_init_info cqp_init_info = {}; + 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 = ALIGN(sizeof(struct irdma_cqp_sq_wqe) * sqsize, + IRDMA_CQP_ALIGNMENT); + cqp->sq.va = dma_alloc_coherent(dev->hw->device, cqp->sq.size, + &cqp->sq.pa, GFP_KERNEL); + 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; + + 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) { + ibdev_dbg(to_ibdev(dev), "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) { + ibdev_dbg(to_ibdev(dev), + "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: + dma_free_coherent(dev->hw->device, cqp->sq.size, + cqp->sq.va, cqp->sq.pa); + cqp->sq.va = NULL; +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 = {}; + struct irdma_ccq *ccq = &rf->ccq; + int status; + + 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 = ALIGN(sizeof(struct irdma_cqe) * IW_CCQ_SIZE, + IRDMA_CQ0_ALIGNMENT); + ccq->mem_cq.va = dma_alloc_coherent(dev->hw->device, ccq->mem_cq.size, + &ccq->mem_cq.pa, GFP_KERNEL); + 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 = IW_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) { + dma_free_coherent(dev->hw->device, ccq->mem_cq.size, + ccq->mem_cq.va, ccq->mem_cq.pa); + ccq->mem_cq.va = NULL; + } + + 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 *)iwdev->netdev->dev_addr, + (u8)iwdev->mac_ip_table_idx); + if (status) + irdma_del_local_mac_entry(iwdev->rf, + (u8)iwdev->mac_ip_table_idx); + } + 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, + u32 ceq_id, struct irdma_msix_vector *msix_vec) +{ + int status; + + if (rf->msix_shared && !ceq_id) { + tasklet_setup(&rf->dpc_tasklet, irdma_dpc); + status = request_irq(msix_vec->irq, irdma_irq_handler, 0, + "AEQCEQ", rf); + } else { + tasklet_setup(&iwceq->dpc_tasklet, irdma_ceq_dpc); + + status = request_irq(msix_vec->irq, irdma_ceq_handler, 0, + "CEQ", iwceq); + } + cpumask_clear(&msix_vec->mask); + cpumask_set_cpu(msix_vec->cpu_affinity, &msix_vec->mask); + irq_update_affinity_hint(msix_vec->irq, &msix_vec->mask); + if (status) { + ibdev_dbg(&rf->iwdev->ibdev, "ERR: ceq irq config fail\n"); + return status; + } + + 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; + u32 ret = 0; + + if (!rf->msix_shared) { + tasklet_setup(&rf->dpc_tasklet, irdma_dpc); + ret = request_irq(msix_vec->irq, irdma_irq_handler, 0, + "irdma", rf); + } + if (ret) { + ibdev_dbg(&rf->iwdev->ibdev, "ERR: aeq irq config fail\n"); + return -EINVAL; + } + + 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, + u32 ceq_id, struct irdma_sc_vsi *vsi) +{ + int status; + struct irdma_ceq_init_info info = {}; + 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 = ALIGN(sizeof(struct irdma_ceqe) * ceq_size, + IRDMA_CEQ_ALIGNMENT); + iwceq->mem.va = dma_alloc_coherent(dev->hw->device, iwceq->mem.size, + &iwceq->mem.pa, GFP_KERNEL); + 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; + 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, 0); + } + + if (status) { + dma_free_coherent(dev->hw->device, iwceq->mem.size, + iwceq->mem.va, iwceq->mem.pa); + iwceq->mem.va = NULL; + } + + 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); + if (!rf->ceqlist) { + status = -ENOMEM; + goto exit; + } + + iwceq = &rf->ceqlist[0]; + status = irdma_create_ceq(rf, iwceq, 0, &rf->default_vsi); + if (status) { + ibdev_dbg(&rf->iwdev->ibdev, "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; + u32 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) { + ibdev_dbg(&rf->iwdev->ibdev, + "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 = {}; + 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 = ALIGN(sizeof(struct irdma_sc_aeqe) * aeq_size, + IRDMA_AEQ_ALIGNMENT); + aeq->mem.va = dma_alloc_coherent(dev->hw->device, aeq->mem.size, + &aeq->mem.pa, + GFP_KERNEL | __GFP_NOWARN); + 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 { + dma_free_coherent(dev->hw->device, aeq->mem.size, aeq->mem.va, + aeq->mem.pa); + aeq->mem.va = NULL; + } + + 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 = {}; + 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_free_sqbuf; + status = irdma_puda_create_rsrc(&iwdev->vsi, &info); + if (status) + ibdev_dbg(&iwdev->ibdev, "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 = {}; + 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) + ibdev_dbg(&iwdev->ibdev, "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) +{ + int status; + u32 qpcnt; + + qpcnt = rsrc_limits_table[rf->limits_sel].qplimit; + + rf->sd_type = IRDMA_SD_TYPE_DIRECT; + status = irdma_cfg_fpm_val(&rf->sc_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; + kfree(rf->mem_rsrc); + rf->mem_rsrc = NULL; + dma_free_coherent(rf->hw.device, rf->obj_mem.size, rf->obj_mem.va, + rf->obj_mem.pa); + rf->obj_mem.va = NULL; + if (rf->rdma_ver != IRDMA_GEN_1) { + bitmap_free(rf->allocated_ws_nodes); + rf->allocated_ws_nodes = NULL; + } + 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 = {}; + 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->pf_id; + info.hw = &rf->hw; + status = irdma_sc_dev_init(rf->rdma_ver, &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) +{ + ibdev_dbg(&iwdev->ibdev, "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 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: + ibdev_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->hw.device = &rf->pcidev->dev; + rf->obj_mem.size = ALIGN(8192, IRDMA_HW_PAGE_SIZE); + rf->obj_mem.va = dma_alloc_coherent(rf->hw.device, rf->obj_mem.size, + &rf->obj_mem.pa, GFP_KERNEL); + 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; + + return 0; + +clean_obj_mem: + dma_free_coherent(rf->hw.device, rf->obj_mem.size, rf->obj_mem.va, + rf->obj_mem.pa); + rf->obj_mem.va = NULL; +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); + fallthrough; + case INITIAL_STATE: + irdma_del_init_mem(rf); + break; + case INVALID_STATE: + default: + ibdev_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_vsi_init_info vsi_info = {}; + struct irdma_vsi_stats_info stats_info = {}; + 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 (!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; + + 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; + + 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_setup_ceq_0(rf); + if (status) + break; + rf->init_state = CEQ0_CREATED; + /* Handles processing of CQP completions */ + rf->cqp_cmpl_wq = alloc_ordered_workqueue("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); + + dev_err(&rf->pcidev->dev, "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)]); + + spin_lock_init(&rf->rsrc_lock); + spin_lock_init(&rf->arp_lock); + spin_lock_init(&rf->qptable_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; + + 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 = bitmap_zalloc(IRDMA_MAX_WS_NODES, + 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 = kzalloc(rsrc_size, GFP_KERNEL); + if (!rf->mem_rsrc) { + ret = -ENOMEM; + goto mem_rsrc_kzalloc_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(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_kzalloc_fail: + bitmap_free(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 *) + (unsigned long)info.scratch; + if (info.error && irdma_cqp_crit_err(dev, cqp_request->info.cqp_cmd, + info.maj_err_code, + info.min_err_code)) + ibdev_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; + + if (cqp_request->waiting) { + WRITE_ONCE(cqp_request->request_done, true); + wake_up(&cqp_request->waitq); + irdma_put_cqp_request(&rf->cqp, cqp_request); + } else { + if (cqp_request->callback_fcn) + cqp_request->callback_fcn(cqp_request); + irdma_put_cqp_request(&rf->cqp, cqp_request); + } + } + + cqe_count++; + } while (1); + + if (cqe_count) { + irdma_process_bh(dev); + irdma_sc_ccq_arm(cq); + } +} + +/** + * 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 = {}; + + 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; + + 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; + 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; + memset(info, 0, sizeof(*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; + ibdev_dbg(&iwdev->ibdev, "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(&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); +} + +/** + * irdma_manage_arp_cache - manage hw arp cache + * @rf: RDMA PCI function + * @mac_addr: mac address ptr + * @ip_addr: ip addr for arp cache + * @ipv4: flag inicating IPv4 + * @action: add, delete or modify + */ +void irdma_manage_arp_cache(struct irdma_pci_f *rf, + const unsigned char *mac_addr, + u32 *ip_addr, bool ipv4, u32 action) +{ + struct irdma_add_arp_cache_entry_info *info; + struct irdma_cqp_request *cqp_request; + struct cqp_cmds_info *cqp_info; + int arp_index; + + arp_index = irdma_arp_table(rf, ip_addr, ipv4, mac_addr, action); + if (arp_index == -1) + return; + + 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) { + cqp_info->cqp_cmd = IRDMA_OP_ADD_ARP_CACHE_ENTRY; + info = &cqp_info->in.u.add_arp_cache_entry.info; + memset(info, 0, sizeof(*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_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_cm_node(cm_node); +} + +/** + * 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; + memset(info, 0, sizeof(*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, iwdev->netdev->dev_addr); + 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]; + } + if (cmnode) { + cqp_request->callback_fcn = irdma_send_syn_cqp_callback; + cqp_request->param = cmnode; + if (!wait) + refcount_inc(&cm_node->refcnt); + } + if (info->ipv4_valid) + ibdev_dbg(&iwdev->ibdev, + "CM: %s caller: %pS loc_port=0x%04x rem_port=0x%04x loc_addr=%pI4 rem_addr=%pI4 mac=%pM, vlan_id=%d cm_node=%p\n", + (!mtype) ? "DELETE" : "ADD", + __builtin_return_address(0), info->dest_port, + info->src_port, info->dest_ip, info->src_ip, + info->mac_addr, cminfo->vlan_id, + cmnode ? cmnode : NULL); + else + ibdev_dbg(&iwdev->ibdev, + "CM: %s caller: %pS loc_port=0x%04x rem_port=0x%04x loc_addr=%pI6 rem_addr=%pI6 mac=%pM, vlan_id=%d cm_node=%p\n", + (!mtype) ? "DELETE" : "ADD", + __builtin_return_address(0), info->dest_port, + info->src_port, info->dest_ip, info->src_ip, + info->mac_addr, 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; + cqp_info->cqp_cmd = IRDMA_OP_MANAGE_QHASH_TABLE_ENTRY; + cqp_info->post_sq = 1; + status = irdma_handle_cqp_op(iwdev->rf, cqp_request); + if (status && cm_node && !wait) + irdma_rem_ref_cm_node(cm_node); + + irdma_put_cqp_request(iwcqp, cqp_request); + + return status; +} + +/** + * irdma_hw_flush_wqes_callback - Check return code after flush + * @cqp_request: qhash cqp completion + */ +static void irdma_hw_flush_wqes_callback(struct irdma_cqp_request *cqp_request) +{ + struct irdma_qp_flush_info *hw_info; + struct irdma_sc_qp *qp; + struct irdma_qp *iwqp; + struct cqp_cmds_info *cqp_info; + + cqp_info = &cqp_request->info; + hw_info = &cqp_info->in.u.qp_flush_wqes.info; + qp = cqp_info->in.u.qp_flush_wqes.qp; + iwqp = qp->qp_uk.back_qp; + + if (cqp_request->compl_info.maj_err_code) + return; + + if (hw_info->rq && + (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 (hw_info->sq && + (cqp_request->compl_info.min_err_code == IRDMA_CQP_COMPL_RQ_WQE_FLUSHED || + cqp_request->compl_info.min_err_code == 0)) { + if (IRDMA_RING_MORE_WORK(qp->qp_uk.sq_ring)) { + ibdev_err(&iwqp->iwdev->ibdev, "Flush QP[%d] failed, SQ has more work", + qp->qp_uk.qp_id); + irdma_ib_qp_event(iwqp, IRDMA_QP_EVENT_CATASTROPHIC); + } + qp->qp_uk.sq_flush_complete = true; + } +} + +/** + * 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; + if (!wait) + cqp_request->callback_fcn = irdma_hw_flush_wqes_callback; + 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) { + /* + * Handling case where WQE is posted to empty SQ when + * flush has not completed + */ + if (IRDMA_RING_MORE_WORK(qp->qp_uk.sq_ring)) { + struct irdma_cqp_request *new_req; + + if (!qp->qp_uk.sq_flush_complete) + goto put_cqp; + qp->qp_uk.sq_flush_complete = false; + qp->flush_sq = false; + + info->rq = false; + info->sq = true; + new_req = irdma_alloc_and_get_cqp_request(&rf->cqp, true); + if (!new_req) { + status = -ENOMEM; + goto put_cqp; + } + cqp_info = &new_req->info; + hw_info = &new_req->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)new_req; + + status = irdma_handle_cqp_op(rf, new_req); + if (new_req->compl_info.maj_err_code || + new_req->compl_info.min_err_code != IRDMA_CQP_COMPL_SQ_WQE_FLUSHED || + status) { + ibdev_err(&iwqp->iwdev->ibdev, "fatal QP event: SQ in error but not flushed, qp: %d", + iwqp->ibqp.qp_num); + qp->qp_uk.sq_flush_complete = false; + irdma_ib_qp_event(iwqp, IRDMA_QP_EVENT_CATASTROPHIC); + } + irdma_put_cqp_request(&rf->cqp, new_req); + } else { + /* SQ WQE flush was requested but did not happen */ + qp->qp_uk.sq_flush_complete = true; + } + } else { + if (!IRDMA_RING_MORE_WORK(qp->qp_uk.sq_ring)) + qp->qp_uk.sq_flush_complete = true; + } + } + + ibdev_dbg(&rf->iwdev->ibdev, + "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 = {}; + 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; + + /* 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 (!iwqp->user_mode) + queue_delayed_work(iwqp->iwdev->cleanup_wq, + &iwqp->dwork_flush, + msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS)); + } + + /* Issue flush */ + (void)irdma_hw_flush_wqes(rf, &iwqp->sc_qp, &info, + flush_mask & IRDMA_FLUSH_WAIT); + iwqp->flush_issued = true; +} |