/* SPDX-License-Identifier: BSD-3-Clause * Copyright 2020 Mellanox Technologies, Ltd */ #include #include #include #include #include #include #include #include #include #include #include #include #include "mlx5.h" #include "mlx5_common_os.h" #include "mlx5_rxtx.h" #include "mlx5_utils.h" #include "mlx5_devx.h" #include "mlx5_flow.h" /** * Modify RQ vlan stripping offload * * @param rxq_obj * Rx queue object. * * @return * 0 on success, non-0 otherwise */ static int mlx5_rxq_obj_modify_rq_vlan_strip(struct mlx5_rxq_obj *rxq_obj, int on) { struct mlx5_devx_modify_rq_attr rq_attr; memset(&rq_attr, 0, sizeof(rq_attr)); rq_attr.rq_state = MLX5_RQC_STATE_RDY; rq_attr.state = MLX5_RQC_STATE_RDY; rq_attr.vsd = (on ? 0 : 1); rq_attr.modify_bitmask = MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_VSD; return mlx5_devx_cmd_modify_rq(rxq_obj->rq, &rq_attr); } /** * Modify RQ using DevX API. * * @param rxq_obj * DevX Rx queue object. * @param type * Type of change queue state. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_devx_modify_rq(struct mlx5_rxq_obj *rxq_obj, uint8_t type) { struct mlx5_devx_modify_rq_attr rq_attr; memset(&rq_attr, 0, sizeof(rq_attr)); switch (type) { case MLX5_RXQ_MOD_ERR2RST: rq_attr.rq_state = MLX5_RQC_STATE_ERR; rq_attr.state = MLX5_RQC_STATE_RST; break; case MLX5_RXQ_MOD_RST2RDY: rq_attr.rq_state = MLX5_RQC_STATE_RST; rq_attr.state = MLX5_RQC_STATE_RDY; break; case MLX5_RXQ_MOD_RDY2ERR: rq_attr.rq_state = MLX5_RQC_STATE_RDY; rq_attr.state = MLX5_RQC_STATE_ERR; break; case MLX5_RXQ_MOD_RDY2RST: rq_attr.rq_state = MLX5_RQC_STATE_RDY; rq_attr.state = MLX5_RQC_STATE_RST; break; default: break; } return mlx5_devx_cmd_modify_rq(rxq_obj->rq, &rq_attr); } /** * Modify SQ using DevX API. * * @param txq_obj * DevX Tx queue object. * @param type * Type of change queue state. * @param dev_port * Unnecessary. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_devx_modify_sq(struct mlx5_txq_obj *obj, enum mlx5_txq_modify_type type, uint8_t dev_port) { struct mlx5_devx_modify_sq_attr msq_attr = { 0 }; int ret; if (type != MLX5_TXQ_MOD_RST2RDY) { /* Change queue state to reset. */ if (type == MLX5_TXQ_MOD_ERR2RDY) msq_attr.sq_state = MLX5_SQC_STATE_ERR; else msq_attr.sq_state = MLX5_SQC_STATE_RDY; msq_attr.state = MLX5_SQC_STATE_RST; ret = mlx5_devx_cmd_modify_sq(obj->sq_devx, &msq_attr); if (ret) { DRV_LOG(ERR, "Cannot change the Tx SQ state to RESET" " %s", strerror(errno)); rte_errno = errno; return ret; } } if (type != MLX5_TXQ_MOD_RDY2RST) { /* Change queue state to ready. */ msq_attr.sq_state = MLX5_SQC_STATE_RST; msq_attr.state = MLX5_SQC_STATE_RDY; ret = mlx5_devx_cmd_modify_sq(obj->sq_devx, &msq_attr); if (ret) { DRV_LOG(ERR, "Cannot change the Tx SQ state to READY" " %s", strerror(errno)); rte_errno = errno; return ret; } } /* * The dev_port variable is relevant only in Verbs API, and there is a * pointer that points to this function and a parallel function in verbs * intermittently, so they should have the same parameters. */ (void)dev_port; return 0; } /** * Release the resources allocated for an RQ DevX object. * * @param rxq_ctrl * DevX Rx queue object. */ static void mlx5_rxq_release_devx_rq_resources(struct mlx5_rxq_ctrl *rxq_ctrl) { struct mlx5_devx_dbr_page *dbr_page = rxq_ctrl->rq_dbrec_page; if (rxq_ctrl->wq_umem) { mlx5_os_umem_dereg(rxq_ctrl->wq_umem); rxq_ctrl->wq_umem = NULL; } if (rxq_ctrl->rxq.wqes) { mlx5_free((void *)(uintptr_t)rxq_ctrl->rxq.wqes); rxq_ctrl->rxq.wqes = NULL; } if (dbr_page) { claim_zero(mlx5_release_dbr(&rxq_ctrl->priv->dbrpgs, mlx5_os_get_umem_id(dbr_page->umem), rxq_ctrl->rq_dbr_offset)); rxq_ctrl->rq_dbrec_page = NULL; } } /** * Release the resources allocated for the Rx CQ DevX object. * * @param rxq_ctrl * DevX Rx queue object. */ static void mlx5_rxq_release_devx_cq_resources(struct mlx5_rxq_ctrl *rxq_ctrl) { struct mlx5_devx_dbr_page *dbr_page = rxq_ctrl->cq_dbrec_page; if (rxq_ctrl->cq_umem) { mlx5_os_umem_dereg(rxq_ctrl->cq_umem); rxq_ctrl->cq_umem = NULL; } if (rxq_ctrl->rxq.cqes) { rte_free((void *)(uintptr_t)rxq_ctrl->rxq.cqes); rxq_ctrl->rxq.cqes = NULL; } if (dbr_page) { claim_zero(mlx5_release_dbr(&rxq_ctrl->priv->dbrpgs, mlx5_os_get_umem_id(dbr_page->umem), rxq_ctrl->cq_dbr_offset)); rxq_ctrl->cq_dbrec_page = NULL; } } /** * Release an Rx DevX queue object. * * @param rxq_obj * DevX Rx queue object. */ static void mlx5_rxq_devx_obj_release(struct mlx5_rxq_obj *rxq_obj) { MLX5_ASSERT(rxq_obj); MLX5_ASSERT(rxq_obj->rq); if (rxq_obj->rxq_ctrl->type == MLX5_RXQ_TYPE_HAIRPIN) { mlx5_devx_modify_rq(rxq_obj, MLX5_RXQ_MOD_RDY2RST); claim_zero(mlx5_devx_cmd_destroy(rxq_obj->rq)); } else { MLX5_ASSERT(rxq_obj->devx_cq); claim_zero(mlx5_devx_cmd_destroy(rxq_obj->rq)); claim_zero(mlx5_devx_cmd_destroy(rxq_obj->devx_cq)); if (rxq_obj->devx_channel) mlx5_os_devx_destroy_event_channel (rxq_obj->devx_channel); mlx5_rxq_release_devx_rq_resources(rxq_obj->rxq_ctrl); mlx5_rxq_release_devx_cq_resources(rxq_obj->rxq_ctrl); } } /** * Get event for an Rx DevX queue object. * * @param rxq_obj * DevX Rx queue object. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_rx_devx_get_event(struct mlx5_rxq_obj *rxq_obj) { #ifdef HAVE_IBV_DEVX_EVENT union { struct mlx5dv_devx_async_event_hdr event_resp; uint8_t buf[sizeof(struct mlx5dv_devx_async_event_hdr) + 128]; } out; int ret = mlx5_glue->devx_get_event(rxq_obj->devx_channel, &out.event_resp, sizeof(out.buf)); if (ret < 0) { rte_errno = errno; return -rte_errno; } if (out.event_resp.cookie != (uint64_t)(uintptr_t)rxq_obj->devx_cq) { rte_errno = EINVAL; return -rte_errno; } return 0; #else (void)rxq_obj; rte_errno = ENOTSUP; return -rte_errno; #endif /* HAVE_IBV_DEVX_EVENT */ } /** * Fill common fields of create RQ attributes structure. * * @param rxq_data * Pointer to Rx queue data. * @param cqn * CQ number to use with this RQ. * @param rq_attr * RQ attributes structure to fill.. */ static void mlx5_devx_create_rq_attr_fill(struct mlx5_rxq_data *rxq_data, uint32_t cqn, struct mlx5_devx_create_rq_attr *rq_attr) { rq_attr->state = MLX5_RQC_STATE_RST; rq_attr->vsd = (rxq_data->vlan_strip) ? 0 : 1; rq_attr->cqn = cqn; rq_attr->scatter_fcs = (rxq_data->crc_present) ? 1 : 0; } /** * Fill common fields of DevX WQ attributes structure. * * @param priv * Pointer to device private data. * @param rxq_ctrl * Pointer to Rx queue control structure. * @param wq_attr * WQ attributes structure to fill.. */ static void mlx5_devx_wq_attr_fill(struct mlx5_priv *priv, struct mlx5_rxq_ctrl *rxq_ctrl, struct mlx5_devx_wq_attr *wq_attr) { wq_attr->end_padding_mode = priv->config.hw_padding ? MLX5_WQ_END_PAD_MODE_ALIGN : MLX5_WQ_END_PAD_MODE_NONE; wq_attr->pd = priv->sh->pdn; wq_attr->dbr_addr = rxq_ctrl->rq_dbr_offset; wq_attr->dbr_umem_id = mlx5_os_get_umem_id(rxq_ctrl->rq_dbrec_page->umem); wq_attr->dbr_umem_valid = 1; wq_attr->wq_umem_id = mlx5_os_get_umem_id(rxq_ctrl->wq_umem); wq_attr->wq_umem_valid = 1; } /** * Create a RQ object using DevX. * * @param dev * Pointer to Ethernet device. * @param idx * Queue index in DPDK Rx queue array. * * @return * The DevX RQ object initialized, NULL otherwise and rte_errno is set. */ static struct mlx5_devx_obj * mlx5_rxq_create_devx_rq_resources(struct rte_eth_dev *dev, uint16_t idx) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_rxq_data *rxq_data = (*priv->rxqs)[idx]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq); struct mlx5_devx_create_rq_attr rq_attr = { 0 }; uint32_t wqe_n = 1 << (rxq_data->elts_n - rxq_data->sges_n); uint32_t cqn = rxq_ctrl->obj->devx_cq->id; struct mlx5_devx_dbr_page *dbr_page; int64_t dbr_offset; uint32_t wq_size = 0; uint32_t wqe_size = 0; uint32_t log_wqe_size = 0; void *buf = NULL; struct mlx5_devx_obj *rq; /* Fill RQ attributes. */ rq_attr.mem_rq_type = MLX5_RQC_MEM_RQ_TYPE_MEMORY_RQ_INLINE; rq_attr.flush_in_error_en = 1; mlx5_devx_create_rq_attr_fill(rxq_data, cqn, &rq_attr); /* Fill WQ attributes for this RQ. */ if (mlx5_rxq_mprq_enabled(rxq_data)) { rq_attr.wq_attr.wq_type = MLX5_WQ_TYPE_CYCLIC_STRIDING_RQ; /* * Number of strides in each WQE: * 512*2^single_wqe_log_num_of_strides. */ rq_attr.wq_attr.single_wqe_log_num_of_strides = rxq_data->strd_num_n - MLX5_MIN_SINGLE_WQE_LOG_NUM_STRIDES; /* Stride size = (2^single_stride_log_num_of_bytes)*64B. */ rq_attr.wq_attr.single_stride_log_num_of_bytes = rxq_data->strd_sz_n - MLX5_MIN_SINGLE_STRIDE_LOG_NUM_BYTES; wqe_size = sizeof(struct mlx5_wqe_mprq); } else { rq_attr.wq_attr.wq_type = MLX5_WQ_TYPE_CYCLIC; wqe_size = sizeof(struct mlx5_wqe_data_seg); } log_wqe_size = log2above(wqe_size) + rxq_data->sges_n; rq_attr.wq_attr.log_wq_stride = log_wqe_size; rq_attr.wq_attr.log_wq_sz = rxq_data->elts_n - rxq_data->sges_n; /* Calculate and allocate WQ memory space. */ wqe_size = 1 << log_wqe_size; /* round up power of two.*/ wq_size = wqe_n * wqe_size; size_t alignment = MLX5_WQE_BUF_ALIGNMENT; if (alignment == (size_t)-1) { DRV_LOG(ERR, "Failed to get mem page size"); rte_errno = ENOMEM; return NULL; } buf = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, wq_size, alignment, rxq_ctrl->socket); if (!buf) return NULL; rxq_data->wqes = buf; rxq_ctrl->wq_umem = mlx5_os_umem_reg(priv->sh->ctx, buf, wq_size, 0); if (!rxq_ctrl->wq_umem) goto error; /* Allocate RQ door-bell. */ dbr_offset = mlx5_get_dbr(priv->sh->ctx, &priv->dbrpgs, &dbr_page); if (dbr_offset < 0) { DRV_LOG(ERR, "Failed to allocate RQ door-bell."); goto error; } rxq_ctrl->rq_dbr_offset = dbr_offset; rxq_ctrl->rq_dbrec_page = dbr_page; rxq_data->rq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs + (uintptr_t)rxq_ctrl->rq_dbr_offset); /* Create RQ using DevX API. */ mlx5_devx_wq_attr_fill(priv, rxq_ctrl, &rq_attr.wq_attr); rq = mlx5_devx_cmd_create_rq(priv->sh->ctx, &rq_attr, rxq_ctrl->socket); if (!rq) goto error; return rq; error: mlx5_rxq_release_devx_rq_resources(rxq_ctrl); return NULL; } /** * Create a DevX CQ object for an Rx queue. * * @param dev * Pointer to Ethernet device. * @param idx * Queue index in DPDK Rx queue array. * * @return * The DevX CQ object initialized, NULL otherwise and rte_errno is set. */ static struct mlx5_devx_obj * mlx5_rxq_create_devx_cq_resources(struct rte_eth_dev *dev, uint16_t idx) { struct mlx5_devx_obj *cq_obj = 0; struct mlx5_devx_cq_attr cq_attr = { 0 }; struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_rxq_data *rxq_data = (*priv->rxqs)[idx]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq); size_t page_size = rte_mem_page_size(); unsigned int cqe_n = mlx5_rxq_cqe_num(rxq_data); struct mlx5_devx_dbr_page *dbr_page; int64_t dbr_offset; void *buf = NULL; uint16_t event_nums[1] = {0}; uint32_t log_cqe_n; uint32_t cq_size; int ret = 0; if (page_size == (size_t)-1) { DRV_LOG(ERR, "Failed to get page_size."); goto error; } if (priv->config.cqe_comp && !rxq_data->hw_timestamp && !rxq_data->lro) { cq_attr.cqe_comp_en = 1u; rxq_data->mcqe_format = priv->config.cqe_comp_fmt; rxq_data->byte_mask = UINT32_MAX; switch (priv->config.cqe_comp_fmt) { case MLX5_CQE_RESP_FORMAT_HASH: /* fallthrough */ case MLX5_CQE_RESP_FORMAT_CSUM: /* * Select CSUM miniCQE format only for non-vectorized * MPRQ Rx burst, use HASH miniCQE format for others. */ if (mlx5_rxq_check_vec_support(rxq_data) < 0 && mlx5_rxq_mprq_enabled(rxq_data)) cq_attr.mini_cqe_res_format = MLX5_CQE_RESP_FORMAT_CSUM_STRIDX; else cq_attr.mini_cqe_res_format = MLX5_CQE_RESP_FORMAT_HASH; rxq_data->mcqe_format = cq_attr.mini_cqe_res_format; break; case MLX5_CQE_RESP_FORMAT_FTAG_STRIDX: rxq_data->byte_mask = MLX5_LEN_WITH_MARK_MASK; /* fallthrough */ case MLX5_CQE_RESP_FORMAT_CSUM_STRIDX: cq_attr.mini_cqe_res_format = priv->config.cqe_comp_fmt; break; case MLX5_CQE_RESP_FORMAT_L34H_STRIDX: cq_attr.mini_cqe_res_format = 0; cq_attr.mini_cqe_res_format_ext = 1; break; } DRV_LOG(DEBUG, "Port %u Rx CQE compression is enabled, format %d.", dev->data->port_id, priv->config.cqe_comp_fmt); /* * For vectorized Rx, it must not be doubled in order to * make cq_ci and rq_ci aligned. */ if (mlx5_rxq_check_vec_support(rxq_data) < 0) cqe_n *= 2; } else if (priv->config.cqe_comp && rxq_data->hw_timestamp) { DRV_LOG(DEBUG, "Port %u Rx CQE compression is disabled for HW" " timestamp.", dev->data->port_id); } else if (priv->config.cqe_comp && rxq_data->lro) { DRV_LOG(DEBUG, "Port %u Rx CQE compression is disabled for LRO.", dev->data->port_id); } if (priv->config.cqe_pad) cq_attr.cqe_size = MLX5_CQE_SIZE_128B; log_cqe_n = log2above(cqe_n); cq_size = sizeof(struct mlx5_cqe) * (1 << log_cqe_n); buf = rte_calloc_socket(__func__, 1, cq_size, page_size, rxq_ctrl->socket); if (!buf) { DRV_LOG(ERR, "Failed to allocate memory for CQ."); goto error; } rxq_data->cqes = (volatile struct mlx5_cqe (*)[])(uintptr_t)buf; rxq_ctrl->cq_umem = mlx5_os_umem_reg(priv->sh->ctx, buf, cq_size, IBV_ACCESS_LOCAL_WRITE); if (!rxq_ctrl->cq_umem) { DRV_LOG(ERR, "Failed to register umem for CQ."); goto error; } /* Allocate CQ door-bell. */ dbr_offset = mlx5_get_dbr(priv->sh->ctx, &priv->dbrpgs, &dbr_page); if (dbr_offset < 0) { DRV_LOG(ERR, "Failed to allocate CQ door-bell."); goto error; } rxq_ctrl->cq_dbr_offset = dbr_offset; rxq_ctrl->cq_dbrec_page = dbr_page; rxq_data->cq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs + (uintptr_t)rxq_ctrl->cq_dbr_offset); rxq_data->cq_uar = mlx5_os_get_devx_uar_base_addr(priv->sh->devx_rx_uar); /* Create CQ using DevX API. */ cq_attr.eqn = priv->sh->eqn; cq_attr.uar_page_id = mlx5_os_get_devx_uar_page_id(priv->sh->devx_rx_uar); cq_attr.q_umem_id = mlx5_os_get_umem_id(rxq_ctrl->cq_umem); cq_attr.q_umem_valid = 1; cq_attr.log_cq_size = log_cqe_n; cq_attr.log_page_size = rte_log2_u32(page_size); cq_attr.db_umem_offset = rxq_ctrl->cq_dbr_offset; cq_attr.db_umem_id = mlx5_os_get_umem_id(dbr_page->umem); cq_attr.db_umem_valid = 1; cq_obj = mlx5_devx_cmd_create_cq(priv->sh->ctx, &cq_attr); if (!cq_obj) goto error; rxq_data->cqe_n = log_cqe_n; rxq_data->cqn = cq_obj->id; if (rxq_ctrl->obj->devx_channel) { ret = mlx5_os_devx_subscribe_devx_event (rxq_ctrl->obj->devx_channel, cq_obj->obj, sizeof(event_nums), event_nums, (uint64_t)(uintptr_t)cq_obj); if (ret) { DRV_LOG(ERR, "Fail to subscribe CQ to event channel."); rte_errno = errno; goto error; } } /* Initialise CQ to 1's to mark HW ownership for all CQEs. */ memset((void *)(uintptr_t)rxq_data->cqes, 0xFF, cq_size); return cq_obj; error: if (cq_obj) mlx5_devx_cmd_destroy(cq_obj); mlx5_rxq_release_devx_cq_resources(rxq_ctrl); return NULL; } /** * Create the Rx hairpin queue object. * * @param dev * Pointer to Ethernet device. * @param idx * Queue index in DPDK Rx queue array. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_rxq_obj_hairpin_new(struct rte_eth_dev *dev, uint16_t idx) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_rxq_data *rxq_data = (*priv->rxqs)[idx]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq); struct mlx5_devx_create_rq_attr attr = { 0 }; struct mlx5_rxq_obj *tmpl = rxq_ctrl->obj; uint32_t max_wq_data; MLX5_ASSERT(rxq_data); MLX5_ASSERT(tmpl); tmpl->rxq_ctrl = rxq_ctrl; attr.hairpin = 1; max_wq_data = priv->config.hca_attr.log_max_hairpin_wq_data_sz; /* Jumbo frames > 9KB should be supported, and more packets. */ if (priv->config.log_hp_size != (uint32_t)MLX5_ARG_UNSET) { if (priv->config.log_hp_size > max_wq_data) { DRV_LOG(ERR, "Total data size %u power of 2 is " "too large for hairpin.", priv->config.log_hp_size); rte_errno = ERANGE; return -rte_errno; } attr.wq_attr.log_hairpin_data_sz = priv->config.log_hp_size; } else { attr.wq_attr.log_hairpin_data_sz = (max_wq_data < MLX5_HAIRPIN_JUMBO_LOG_SIZE) ? max_wq_data : MLX5_HAIRPIN_JUMBO_LOG_SIZE; } /* Set the packets number to the maximum value for performance. */ attr.wq_attr.log_hairpin_num_packets = attr.wq_attr.log_hairpin_data_sz - MLX5_HAIRPIN_QUEUE_STRIDE; tmpl->rq = mlx5_devx_cmd_create_rq(priv->sh->ctx, &attr, rxq_ctrl->socket); if (!tmpl->rq) { DRV_LOG(ERR, "Port %u Rx hairpin queue %u can't create rq object.", dev->data->port_id, idx); rte_errno = errno; return -rte_errno; } dev->data->rx_queue_state[idx] = RTE_ETH_QUEUE_STATE_HAIRPIN; return 0; } /** * Create the Rx queue DevX object. * * @param dev * Pointer to Ethernet device. * @param idx * Queue index in DPDK Rx queue array. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_rxq_devx_obj_new(struct rte_eth_dev *dev, uint16_t idx) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_rxq_data *rxq_data = (*priv->rxqs)[idx]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq); struct mlx5_rxq_obj *tmpl = rxq_ctrl->obj; int ret = 0; MLX5_ASSERT(rxq_data); MLX5_ASSERT(tmpl); if (rxq_ctrl->type == MLX5_RXQ_TYPE_HAIRPIN) return mlx5_rxq_obj_hairpin_new(dev, idx); tmpl->rxq_ctrl = rxq_ctrl; if (rxq_ctrl->irq) { int devx_ev_flag = MLX5DV_DEVX_CREATE_EVENT_CHANNEL_FLAGS_OMIT_EV_DATA; tmpl->devx_channel = mlx5_os_devx_create_event_channel (priv->sh->ctx, devx_ev_flag); if (!tmpl->devx_channel) { rte_errno = errno; DRV_LOG(ERR, "Failed to create event channel %d.", rte_errno); goto error; } tmpl->fd = mlx5_os_get_devx_channel_fd(tmpl->devx_channel); } /* Create CQ using DevX API. */ tmpl->devx_cq = mlx5_rxq_create_devx_cq_resources(dev, idx); if (!tmpl->devx_cq) { DRV_LOG(ERR, "Failed to create CQ."); goto error; } /* Create RQ using DevX API. */ tmpl->rq = mlx5_rxq_create_devx_rq_resources(dev, idx); if (!tmpl->rq) { DRV_LOG(ERR, "Port %u Rx queue %u RQ creation failure.", dev->data->port_id, idx); rte_errno = ENOMEM; goto error; } /* Change queue state to ready. */ ret = mlx5_devx_modify_rq(tmpl, MLX5_RXQ_MOD_RST2RDY); if (ret) goto error; rxq_data->cq_arm_sn = 0; mlx5_rxq_initialize(rxq_data); rxq_data->cq_ci = 0; dev->data->rx_queue_state[idx] = RTE_ETH_QUEUE_STATE_STARTED; rxq_ctrl->wqn = tmpl->rq->id; return 0; error: ret = rte_errno; /* Save rte_errno before cleanup. */ if (tmpl->rq) claim_zero(mlx5_devx_cmd_destroy(tmpl->rq)); if (tmpl->devx_cq) claim_zero(mlx5_devx_cmd_destroy(tmpl->devx_cq)); if (tmpl->devx_channel) mlx5_os_devx_destroy_event_channel(tmpl->devx_channel); mlx5_rxq_release_devx_rq_resources(rxq_ctrl); mlx5_rxq_release_devx_cq_resources(rxq_ctrl); rte_errno = ret; /* Restore rte_errno. */ return -rte_errno; } /** * Prepare RQT attribute structure for DevX RQT API. * * @param dev * Pointer to Ethernet device. * @param log_n * Log of number of queues in the array. * @param ind_tbl * DevX indirection table object. * * @return * The RQT attr object initialized, NULL otherwise and rte_errno is set. */ static struct mlx5_devx_rqt_attr * mlx5_devx_ind_table_create_rqt_attr(struct rte_eth_dev *dev, const unsigned int log_n, const uint16_t *queues, const uint32_t queues_n) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_devx_rqt_attr *rqt_attr = NULL; const unsigned int rqt_n = 1 << log_n; unsigned int i, j; rqt_attr = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*rqt_attr) + rqt_n * sizeof(uint32_t), 0, SOCKET_ID_ANY); if (!rqt_attr) { DRV_LOG(ERR, "Port %u cannot allocate RQT resources.", dev->data->port_id); rte_errno = ENOMEM; return NULL; } rqt_attr->rqt_max_size = priv->config.ind_table_max_size; rqt_attr->rqt_actual_size = rqt_n; for (i = 0; i != queues_n; ++i) { struct mlx5_rxq_data *rxq = (*priv->rxqs)[queues[i]]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of(rxq, struct mlx5_rxq_ctrl, rxq); rqt_attr->rq_list[i] = rxq_ctrl->obj->rq->id; } MLX5_ASSERT(i > 0); for (j = 0; i != rqt_n; ++j, ++i) rqt_attr->rq_list[i] = rqt_attr->rq_list[j]; return rqt_attr; } /** * Create RQT using DevX API as a filed of indirection table. * * @param dev * Pointer to Ethernet device. * @param log_n * Log of number of queues in the array. * @param ind_tbl * DevX indirection table object. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_devx_ind_table_new(struct rte_eth_dev *dev, const unsigned int log_n, struct mlx5_ind_table_obj *ind_tbl) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_devx_rqt_attr *rqt_attr = NULL; MLX5_ASSERT(ind_tbl); rqt_attr = mlx5_devx_ind_table_create_rqt_attr(dev, log_n, ind_tbl->queues, ind_tbl->queues_n); if (!rqt_attr) return -rte_errno; ind_tbl->rqt = mlx5_devx_cmd_create_rqt(priv->sh->ctx, rqt_attr); mlx5_free(rqt_attr); if (!ind_tbl->rqt) { DRV_LOG(ERR, "Port %u cannot create DevX RQT.", dev->data->port_id); rte_errno = errno; return -rte_errno; } return 0; } /** * Modify RQT using DevX API as a filed of indirection table. * * @param dev * Pointer to Ethernet device. * @param log_n * Log of number of queues in the array. * @param ind_tbl * DevX indirection table object. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_devx_ind_table_modify(struct rte_eth_dev *dev, const unsigned int log_n, const uint16_t *queues, const uint32_t queues_n, struct mlx5_ind_table_obj *ind_tbl) { int ret = 0; struct mlx5_devx_rqt_attr *rqt_attr = NULL; MLX5_ASSERT(ind_tbl); rqt_attr = mlx5_devx_ind_table_create_rqt_attr(dev, log_n, queues, queues_n); if (!rqt_attr) return -rte_errno; ret = mlx5_devx_cmd_modify_rqt(ind_tbl->rqt, rqt_attr); mlx5_free(rqt_attr); if (ret) DRV_LOG(ERR, "Port %u cannot modify DevX RQT.", dev->data->port_id); return ret; } /** * Destroy the DevX RQT object. * * @param ind_table * Indirection table to release. */ static void mlx5_devx_ind_table_destroy(struct mlx5_ind_table_obj *ind_tbl) { claim_zero(mlx5_devx_cmd_destroy(ind_tbl->rqt)); } /** * Set TIR attribute struct with relevant input values. * * @param[in] dev * Pointer to Ethernet device. * @param[in] rss_key * RSS key for the Rx hash queue. * @param[in] hash_fields * Verbs protocol hash field to make the RSS on. * @param[in] ind_tbl * Indirection table for TIR. * @param[in] tunnel * Tunnel type. * @param[out] tir_attr * Parameters structure for TIR creation/modification. * * @return * The Verbs/DevX object initialised index, 0 otherwise and rte_errno is set. */ static void mlx5_devx_tir_attr_set(struct rte_eth_dev *dev, const uint8_t *rss_key, uint64_t hash_fields, const struct mlx5_ind_table_obj *ind_tbl, int tunnel, struct mlx5_devx_tir_attr *tir_attr) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_rxq_data *rxq_data = (*priv->rxqs)[ind_tbl->queues[0]]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq); enum mlx5_rxq_type rxq_obj_type = rxq_ctrl->type; bool lro = true; uint32_t i; /* Enable TIR LRO only if all the queues were configured for. */ for (i = 0; i < ind_tbl->queues_n; ++i) { if (!(*priv->rxqs)[ind_tbl->queues[i]]->lro) { lro = false; break; } } memset(tir_attr, 0, sizeof(*tir_attr)); tir_attr->disp_type = MLX5_TIRC_DISP_TYPE_INDIRECT; tir_attr->rx_hash_fn = MLX5_RX_HASH_FN_TOEPLITZ; tir_attr->tunneled_offload_en = !!tunnel; /* If needed, translate hash_fields bitmap to PRM format. */ if (hash_fields) { struct mlx5_rx_hash_field_select *rx_hash_field_select = #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT hash_fields & IBV_RX_HASH_INNER ? &tir_attr->rx_hash_field_selector_inner : #endif &tir_attr->rx_hash_field_selector_outer; /* 1 bit: 0: IPv4, 1: IPv6. */ rx_hash_field_select->l3_prot_type = !!(hash_fields & MLX5_IPV6_IBV_RX_HASH); /* 1 bit: 0: TCP, 1: UDP. */ rx_hash_field_select->l4_prot_type = !!(hash_fields & MLX5_UDP_IBV_RX_HASH); /* Bitmask which sets which fields to use in RX Hash. */ rx_hash_field_select->selected_fields = ((!!(hash_fields & MLX5_L3_SRC_IBV_RX_HASH)) << MLX5_RX_HASH_FIELD_SELECT_SELECTED_FIELDS_SRC_IP) | (!!(hash_fields & MLX5_L3_DST_IBV_RX_HASH)) << MLX5_RX_HASH_FIELD_SELECT_SELECTED_FIELDS_DST_IP | (!!(hash_fields & MLX5_L4_SRC_IBV_RX_HASH)) << MLX5_RX_HASH_FIELD_SELECT_SELECTED_FIELDS_L4_SPORT | (!!(hash_fields & MLX5_L4_DST_IBV_RX_HASH)) << MLX5_RX_HASH_FIELD_SELECT_SELECTED_FIELDS_L4_DPORT; } if (rxq_obj_type == MLX5_RXQ_TYPE_HAIRPIN) tir_attr->transport_domain = priv->sh->td->id; else tir_attr->transport_domain = priv->sh->tdn; memcpy(tir_attr->rx_hash_toeplitz_key, rss_key, MLX5_RSS_HASH_KEY_LEN); tir_attr->indirect_table = ind_tbl->rqt->id; if (dev->data->dev_conf.lpbk_mode) tir_attr->self_lb_block = MLX5_TIRC_SELF_LB_BLOCK_BLOCK_UNICAST; if (lro) { tir_attr->lro_timeout_period_usecs = priv->config.lro.timeout; tir_attr->lro_max_msg_sz = priv->max_lro_msg_size; tir_attr->lro_enable_mask = MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO | MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO; } } /** * Create an Rx Hash queue. * * @param dev * Pointer to Ethernet device. * @param hrxq * Pointer to Rx Hash queue. * @param tunnel * Tunnel type. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_devx_hrxq_new(struct rte_eth_dev *dev, struct mlx5_hrxq *hrxq, int tunnel __rte_unused) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_devx_tir_attr tir_attr = {0}; int err; mlx5_devx_tir_attr_set(dev, hrxq->rss_key, hrxq->hash_fields, hrxq->ind_table, tunnel, &tir_attr); hrxq->tir = mlx5_devx_cmd_create_tir(priv->sh->ctx, &tir_attr); if (!hrxq->tir) { DRV_LOG(ERR, "Port %u cannot create DevX TIR.", dev->data->port_id); rte_errno = errno; goto error; } #ifdef HAVE_IBV_FLOW_DV_SUPPORT hrxq->action = mlx5_glue->dv_create_flow_action_dest_devx_tir (hrxq->tir->obj); if (!hrxq->action) { rte_errno = errno; goto error; } #endif return 0; error: err = rte_errno; /* Save rte_errno before cleanup. */ if (hrxq->tir) claim_zero(mlx5_devx_cmd_destroy(hrxq->tir)); rte_errno = err; /* Restore rte_errno. */ return -rte_errno; } /** * Destroy a DevX TIR object. * * @param hrxq * Hash Rx queue to release its tir. */ static void mlx5_devx_tir_destroy(struct mlx5_hrxq *hrxq) { claim_zero(mlx5_devx_cmd_destroy(hrxq->tir)); } /** * Modify an Rx Hash queue configuration. * * @param dev * Pointer to Ethernet device. * @param hrxq * Hash Rx queue to modify. * @param rss_key * RSS key for the Rx hash queue. * @param hash_fields * Verbs protocol hash field to make the RSS on. * @param[in] ind_tbl * Indirection table for TIR. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_devx_hrxq_modify(struct rte_eth_dev *dev, struct mlx5_hrxq *hrxq, const uint8_t *rss_key, uint64_t hash_fields, const struct mlx5_ind_table_obj *ind_tbl) { struct mlx5_devx_modify_tir_attr modify_tir = {0}; /* * untested for modification fields: * - rx_hash_symmetric not set in hrxq_new(), * - rx_hash_fn set hard-coded in hrxq_new(), * - lro_xxx not set after rxq setup */ if (ind_tbl != hrxq->ind_table) modify_tir.modify_bitmask |= MLX5_MODIFY_TIR_IN_MODIFY_BITMASK_INDIRECT_TABLE; if (hash_fields != hrxq->hash_fields || memcmp(hrxq->rss_key, rss_key, MLX5_RSS_HASH_KEY_LEN)) modify_tir.modify_bitmask |= MLX5_MODIFY_TIR_IN_MODIFY_BITMASK_HASH; mlx5_devx_tir_attr_set(dev, rss_key, hash_fields, ind_tbl, 0, /* N/A - tunnel modification unsupported */ &modify_tir.tir); modify_tir.tirn = hrxq->tir->id; if (mlx5_devx_cmd_modify_tir(hrxq->tir, &modify_tir)) { DRV_LOG(ERR, "port %u cannot modify DevX TIR", dev->data->port_id); rte_errno = errno; return -rte_errno; } return 0; } /** * Create a DevX drop action for Rx Hash queue. * * @param dev * Pointer to Ethernet device. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_devx_drop_action_create(struct rte_eth_dev *dev) { (void)dev; DRV_LOG(ERR, "DevX drop action is not supported yet."); rte_errno = ENOTSUP; return -rte_errno; } /** * Release a drop hash Rx queue. * * @param dev * Pointer to Ethernet device. */ static void mlx5_devx_drop_action_destroy(struct rte_eth_dev *dev) { (void)dev; DRV_LOG(ERR, "DevX drop action is not supported yet."); rte_errno = ENOTSUP; } /** * Create the Tx hairpin queue object. * * @param dev * Pointer to Ethernet device. * @param idx * Queue index in DPDK Tx queue array. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_txq_obj_hairpin_new(struct rte_eth_dev *dev, uint16_t idx) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_txq_data *txq_data = (*priv->txqs)[idx]; struct mlx5_txq_ctrl *txq_ctrl = container_of(txq_data, struct mlx5_txq_ctrl, txq); struct mlx5_devx_create_sq_attr attr = { 0 }; struct mlx5_txq_obj *tmpl = txq_ctrl->obj; uint32_t max_wq_data; MLX5_ASSERT(txq_data); MLX5_ASSERT(tmpl); tmpl->txq_ctrl = txq_ctrl; attr.hairpin = 1; attr.tis_lst_sz = 1; max_wq_data = priv->config.hca_attr.log_max_hairpin_wq_data_sz; /* Jumbo frames > 9KB should be supported, and more packets. */ if (priv->config.log_hp_size != (uint32_t)MLX5_ARG_UNSET) { if (priv->config.log_hp_size > max_wq_data) { DRV_LOG(ERR, "Total data size %u power of 2 is " "too large for hairpin.", priv->config.log_hp_size); rte_errno = ERANGE; return -rte_errno; } attr.wq_attr.log_hairpin_data_sz = priv->config.log_hp_size; } else { attr.wq_attr.log_hairpin_data_sz = (max_wq_data < MLX5_HAIRPIN_JUMBO_LOG_SIZE) ? max_wq_data : MLX5_HAIRPIN_JUMBO_LOG_SIZE; } /* Set the packets number to the maximum value for performance. */ attr.wq_attr.log_hairpin_num_packets = attr.wq_attr.log_hairpin_data_sz - MLX5_HAIRPIN_QUEUE_STRIDE; attr.tis_num = priv->sh->tis->id; tmpl->sq = mlx5_devx_cmd_create_sq(priv->sh->ctx, &attr); if (!tmpl->sq) { DRV_LOG(ERR, "Port %u tx hairpin queue %u can't create SQ object.", dev->data->port_id, idx); rte_errno = errno; return -rte_errno; } return 0; } #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET /** * Release DevX SQ resources. * * @param txq_obj * DevX Tx queue object. */ static void mlx5_txq_release_devx_sq_resources(struct mlx5_txq_obj *txq_obj) { if (txq_obj->sq_devx) { claim_zero(mlx5_devx_cmd_destroy(txq_obj->sq_devx)); txq_obj->sq_devx = NULL; } if (txq_obj->sq_umem) { claim_zero(mlx5_os_umem_dereg(txq_obj->sq_umem)); txq_obj->sq_umem = NULL; } if (txq_obj->sq_buf) { mlx5_free(txq_obj->sq_buf); txq_obj->sq_buf = NULL; } if (txq_obj->sq_dbrec_page) { claim_zero(mlx5_release_dbr(&txq_obj->txq_ctrl->priv->dbrpgs, mlx5_os_get_umem_id (txq_obj->sq_dbrec_page->umem), txq_obj->sq_dbrec_offset)); txq_obj->sq_dbrec_page = NULL; } } /** * Release DevX Tx CQ resources. * * @param txq_obj * DevX Tx queue object. */ static void mlx5_txq_release_devx_cq_resources(struct mlx5_txq_obj *txq_obj) { if (txq_obj->cq_devx) claim_zero(mlx5_devx_cmd_destroy(txq_obj->cq_devx)); if (txq_obj->cq_umem) claim_zero(mlx5_os_umem_dereg(txq_obj->cq_umem)); if (txq_obj->cq_buf) mlx5_free(txq_obj->cq_buf); if (txq_obj->cq_dbrec_page) claim_zero(mlx5_release_dbr(&txq_obj->txq_ctrl->priv->dbrpgs, mlx5_os_get_umem_id (txq_obj->cq_dbrec_page->umem), txq_obj->cq_dbrec_offset)); } /** * Destroy the Tx queue DevX object. * * @param txq_obj * Txq object to destroy. */ static void mlx5_txq_release_devx_resources(struct mlx5_txq_obj *txq_obj) { mlx5_txq_release_devx_sq_resources(txq_obj); mlx5_txq_release_devx_cq_resources(txq_obj); } /** * Create a DevX CQ object and its resources for an Tx queue. * * @param dev * Pointer to Ethernet device. * @param idx * Queue index in DPDK Tx queue array. * * @return * Number of CQEs in CQ, 0 otherwise and rte_errno is set. */ static uint32_t mlx5_txq_create_devx_cq_resources(struct rte_eth_dev *dev, uint16_t idx) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_txq_data *txq_data = (*priv->txqs)[idx]; struct mlx5_txq_ctrl *txq_ctrl = container_of(txq_data, struct mlx5_txq_ctrl, txq); struct mlx5_txq_obj *txq_obj = txq_ctrl->obj; struct mlx5_devx_cq_attr cq_attr = { 0 }; struct mlx5_cqe *cqe; size_t page_size; size_t alignment; uint32_t cqe_n; uint32_t i; int ret; MLX5_ASSERT(txq_data); MLX5_ASSERT(txq_obj); page_size = rte_mem_page_size(); if (page_size == (size_t)-1) { DRV_LOG(ERR, "Failed to get mem page size."); rte_errno = ENOMEM; return 0; } /* Allocate memory buffer for CQEs. */ alignment = MLX5_CQE_BUF_ALIGNMENT; if (alignment == (size_t)-1) { DRV_LOG(ERR, "Failed to get CQE buf alignment."); rte_errno = ENOMEM; return 0; } /* Create the Completion Queue. */ cqe_n = (1UL << txq_data->elts_n) / MLX5_TX_COMP_THRESH + 1 + MLX5_TX_COMP_THRESH_INLINE_DIV; cqe_n = 1UL << log2above(cqe_n); if (cqe_n > UINT16_MAX) { DRV_LOG(ERR, "Port %u Tx queue %u requests to many CQEs %u.", dev->data->port_id, txq_data->idx, cqe_n); rte_errno = EINVAL; return 0; } txq_obj->cq_buf = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, cqe_n * sizeof(struct mlx5_cqe), alignment, priv->sh->numa_node); if (!txq_obj->cq_buf) { DRV_LOG(ERR, "Port %u Tx queue %u cannot allocate memory (CQ).", dev->data->port_id, txq_data->idx); rte_errno = ENOMEM; return 0; } /* Register allocated buffer in user space with DevX. */ txq_obj->cq_umem = mlx5_os_umem_reg(priv->sh->ctx, (void *)txq_obj->cq_buf, cqe_n * sizeof(struct mlx5_cqe), IBV_ACCESS_LOCAL_WRITE); if (!txq_obj->cq_umem) { rte_errno = errno; DRV_LOG(ERR, "Port %u Tx queue %u cannot register memory (CQ).", dev->data->port_id, txq_data->idx); goto error; } /* Allocate doorbell record for completion queue. */ txq_obj->cq_dbrec_offset = mlx5_get_dbr(priv->sh->ctx, &priv->dbrpgs, &txq_obj->cq_dbrec_page); if (txq_obj->cq_dbrec_offset < 0) { rte_errno = errno; DRV_LOG(ERR, "Failed to allocate CQ door-bell."); goto error; } cq_attr.cqe_size = (sizeof(struct mlx5_cqe) == 128) ? MLX5_CQE_SIZE_128B : MLX5_CQE_SIZE_64B; cq_attr.uar_page_id = mlx5_os_get_devx_uar_page_id(priv->sh->tx_uar); cq_attr.eqn = priv->sh->eqn; cq_attr.q_umem_valid = 1; cq_attr.q_umem_offset = (uintptr_t)txq_obj->cq_buf % page_size; cq_attr.q_umem_id = mlx5_os_get_umem_id(txq_obj->cq_umem); cq_attr.db_umem_valid = 1; cq_attr.db_umem_offset = txq_obj->cq_dbrec_offset; cq_attr.db_umem_id = mlx5_os_get_umem_id(txq_obj->cq_dbrec_page->umem); cq_attr.log_cq_size = rte_log2_u32(cqe_n); cq_attr.log_page_size = rte_log2_u32(page_size); /* Create completion queue object with DevX. */ txq_obj->cq_devx = mlx5_devx_cmd_create_cq(priv->sh->ctx, &cq_attr); if (!txq_obj->cq_devx) { rte_errno = errno; DRV_LOG(ERR, "Port %u Tx queue %u CQ creation failure.", dev->data->port_id, idx); goto error; } /* Initial fill CQ buffer with invalid CQE opcode. */ cqe = (struct mlx5_cqe *)txq_obj->cq_buf; for (i = 0; i < cqe_n; i++) { cqe->op_own = (MLX5_CQE_INVALID << 4) | MLX5_CQE_OWNER_MASK; ++cqe; } return cqe_n; error: ret = rte_errno; mlx5_txq_release_devx_cq_resources(txq_obj); rte_errno = ret; return 0; } /** * Create a SQ object and its resources using DevX. * * @param dev * Pointer to Ethernet device. * @param idx * Queue index in DPDK Tx queue array. * * @return * Number of WQEs in SQ, 0 otherwise and rte_errno is set. */ static uint32_t mlx5_txq_create_devx_sq_resources(struct rte_eth_dev *dev, uint16_t idx) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_txq_data *txq_data = (*priv->txqs)[idx]; struct mlx5_txq_ctrl *txq_ctrl = container_of(txq_data, struct mlx5_txq_ctrl, txq); struct mlx5_txq_obj *txq_obj = txq_ctrl->obj; struct mlx5_devx_create_sq_attr sq_attr = { 0 }; size_t page_size; uint32_t wqe_n; int ret; MLX5_ASSERT(txq_data); MLX5_ASSERT(txq_obj); page_size = rte_mem_page_size(); if (page_size == (size_t)-1) { DRV_LOG(ERR, "Failed to get mem page size."); rte_errno = ENOMEM; return 0; } wqe_n = RTE_MIN(1UL << txq_data->elts_n, (uint32_t)priv->sh->device_attr.max_qp_wr); txq_obj->sq_buf = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, wqe_n * sizeof(struct mlx5_wqe), page_size, priv->sh->numa_node); if (!txq_obj->sq_buf) { DRV_LOG(ERR, "Port %u Tx queue %u cannot allocate memory (SQ).", dev->data->port_id, txq_data->idx); rte_errno = ENOMEM; goto error; } /* Register allocated buffer in user space with DevX. */ txq_obj->sq_umem = mlx5_os_umem_reg (priv->sh->ctx, (void *)txq_obj->sq_buf, wqe_n * sizeof(struct mlx5_wqe), IBV_ACCESS_LOCAL_WRITE); if (!txq_obj->sq_umem) { rte_errno = errno; DRV_LOG(ERR, "Port %u Tx queue %u cannot register memory (SQ).", dev->data->port_id, txq_data->idx); goto error; } /* Allocate doorbell record for send queue. */ txq_obj->sq_dbrec_offset = mlx5_get_dbr(priv->sh->ctx, &priv->dbrpgs, &txq_obj->sq_dbrec_page); if (txq_obj->sq_dbrec_offset < 0) { rte_errno = errno; DRV_LOG(ERR, "Failed to allocate SQ door-bell."); goto error; } sq_attr.tis_lst_sz = 1; sq_attr.tis_num = priv->sh->tis->id; sq_attr.state = MLX5_SQC_STATE_RST; sq_attr.cqn = txq_obj->cq_devx->id; sq_attr.flush_in_error_en = 1; sq_attr.allow_multi_pkt_send_wqe = !!priv->config.mps; sq_attr.allow_swp = !!priv->config.swp; sq_attr.min_wqe_inline_mode = priv->config.hca_attr.vport_inline_mode; sq_attr.wq_attr.uar_page = mlx5_os_get_devx_uar_page_id(priv->sh->tx_uar); sq_attr.wq_attr.wq_type = MLX5_WQ_TYPE_CYCLIC; sq_attr.wq_attr.pd = priv->sh->pdn; sq_attr.wq_attr.log_wq_stride = rte_log2_u32(MLX5_WQE_SIZE); sq_attr.wq_attr.log_wq_sz = log2above(wqe_n); sq_attr.wq_attr.dbr_umem_valid = 1; sq_attr.wq_attr.dbr_addr = txq_obj->sq_dbrec_offset; sq_attr.wq_attr.dbr_umem_id = mlx5_os_get_umem_id(txq_obj->sq_dbrec_page->umem); sq_attr.wq_attr.wq_umem_valid = 1; sq_attr.wq_attr.wq_umem_id = mlx5_os_get_umem_id(txq_obj->sq_umem); sq_attr.wq_attr.wq_umem_offset = (uintptr_t)txq_obj->sq_buf % page_size; /* Create Send Queue object with DevX. */ txq_obj->sq_devx = mlx5_devx_cmd_create_sq(priv->sh->ctx, &sq_attr); if (!txq_obj->sq_devx) { rte_errno = errno; DRV_LOG(ERR, "Port %u Tx queue %u SQ creation failure.", dev->data->port_id, idx); goto error; } return wqe_n; error: ret = rte_errno; mlx5_txq_release_devx_sq_resources(txq_obj); rte_errno = ret; return 0; } #endif /** * Create the Tx queue DevX object. * * @param dev * Pointer to Ethernet device. * @param idx * Queue index in DPDK Tx queue array. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_txq_devx_obj_new(struct rte_eth_dev *dev, uint16_t idx) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_txq_data *txq_data = (*priv->txqs)[idx]; struct mlx5_txq_ctrl *txq_ctrl = container_of(txq_data, struct mlx5_txq_ctrl, txq); if (txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN) return mlx5_txq_obj_hairpin_new(dev, idx); #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET DRV_LOG(ERR, "Port %u Tx queue %u cannot create with DevX, no UAR.", dev->data->port_id, idx); rte_errno = ENOMEM; return -rte_errno; #else struct mlx5_dev_ctx_shared *sh = priv->sh; struct mlx5_txq_obj *txq_obj = txq_ctrl->obj; void *reg_addr; uint32_t cqe_n; uint32_t wqe_n; int ret = 0; MLX5_ASSERT(txq_data); MLX5_ASSERT(txq_obj); txq_obj->txq_ctrl = txq_ctrl; txq_obj->dev = dev; cqe_n = mlx5_txq_create_devx_cq_resources(dev, idx); if (!cqe_n) { rte_errno = errno; goto error; } txq_data->cqe_n = log2above(cqe_n); txq_data->cqe_s = 1 << txq_data->cqe_n; txq_data->cqe_m = txq_data->cqe_s - 1; txq_data->cqes = (volatile struct mlx5_cqe *)txq_obj->cq_buf; txq_data->cq_ci = 0; txq_data->cq_pi = 0; txq_data->cq_db = (volatile uint32_t *)(txq_obj->cq_dbrec_page->dbrs + txq_obj->cq_dbrec_offset); *txq_data->cq_db = 0; /* Create Send Queue object with DevX. */ wqe_n = mlx5_txq_create_devx_sq_resources(dev, idx); if (!wqe_n) { rte_errno = errno; goto error; } /* Create the Work Queue. */ txq_data->wqe_n = log2above(wqe_n); txq_data->wqe_s = 1 << txq_data->wqe_n; txq_data->wqe_m = txq_data->wqe_s - 1; txq_data->wqes = (struct mlx5_wqe *)txq_obj->sq_buf; txq_data->wqes_end = txq_data->wqes + txq_data->wqe_s; txq_data->wqe_ci = 0; txq_data->wqe_pi = 0; txq_data->wqe_comp = 0; txq_data->wqe_thres = txq_data->wqe_s / MLX5_TX_COMP_THRESH_INLINE_DIV; txq_data->qp_db = (volatile uint32_t *) (txq_obj->sq_dbrec_page->dbrs + txq_obj->sq_dbrec_offset + MLX5_SND_DBR * sizeof(uint32_t)); *txq_data->qp_db = 0; txq_data->qp_num_8s = txq_obj->sq_devx->id << 8; /* Change Send Queue state to Ready-to-Send. */ ret = mlx5_devx_modify_sq(txq_obj, MLX5_TXQ_MOD_RST2RDY, 0); if (ret) { rte_errno = errno; DRV_LOG(ERR, "Port %u Tx queue %u SQ state to SQC_STATE_RDY failed.", dev->data->port_id, idx); goto error; } #ifdef HAVE_IBV_FLOW_DV_SUPPORT /* * If using DevX need to query and store TIS transport domain value. * This is done once per port. * Will use this value on Rx, when creating matching TIR. */ if (!priv->sh->tdn) priv->sh->tdn = priv->sh->td->id; #endif MLX5_ASSERT(sh->tx_uar); reg_addr = mlx5_os_get_devx_uar_reg_addr(sh->tx_uar); MLX5_ASSERT(reg_addr); txq_ctrl->bf_reg = reg_addr; txq_ctrl->uar_mmap_offset = mlx5_os_get_devx_uar_mmap_offset(sh->tx_uar); txq_uar_init(txq_ctrl); dev->data->tx_queue_state[idx] = RTE_ETH_QUEUE_STATE_STARTED; return 0; error: ret = rte_errno; /* Save rte_errno before cleanup. */ mlx5_txq_release_devx_resources(txq_obj); rte_errno = ret; /* Restore rte_errno. */ return -rte_errno; #endif } /** * Release an Tx DevX queue object. * * @param txq_obj * DevX Tx queue object. */ void mlx5_txq_devx_obj_release(struct mlx5_txq_obj *txq_obj) { MLX5_ASSERT(txq_obj); if (txq_obj->txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN) { if (txq_obj->tis) claim_zero(mlx5_devx_cmd_destroy(txq_obj->tis)); #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET } else { mlx5_txq_release_devx_resources(txq_obj); #endif } } struct mlx5_obj_ops devx_obj_ops = { .rxq_obj_modify_vlan_strip = mlx5_rxq_obj_modify_rq_vlan_strip, .rxq_obj_new = mlx5_rxq_devx_obj_new, .rxq_event_get = mlx5_rx_devx_get_event, .rxq_obj_modify = mlx5_devx_modify_rq, .rxq_obj_release = mlx5_rxq_devx_obj_release, .ind_table_new = mlx5_devx_ind_table_new, .ind_table_modify = mlx5_devx_ind_table_modify, .ind_table_destroy = mlx5_devx_ind_table_destroy, .hrxq_new = mlx5_devx_hrxq_new, .hrxq_destroy = mlx5_devx_tir_destroy, .hrxq_modify = mlx5_devx_hrxq_modify, .drop_action_create = mlx5_devx_drop_action_create, .drop_action_destroy = mlx5_devx_drop_action_destroy, .txq_obj_new = mlx5_txq_devx_obj_new, .txq_obj_modify = mlx5_devx_modify_sq, .txq_obj_release = mlx5_txq_devx_obj_release, };