X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx5%2Fmlx5_txq.c;h=0f30a5d529167b87d394c04aac9ff8228437ff81;hb=1be514fbcea9e8964296b46c91dbb56715503ae7;hp=fc730fae82e8483b9b9feb54b1dc7c0ddd563792;hpb=95b0e40b10d9e88f568b082140bf032cffeec9d9;p=dpdk.git diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c index fc730fae82..0f30a5d529 100644 --- a/drivers/net/mlx5/mlx5_txq.c +++ b/drivers/net/mlx5/mlx5_txq.c @@ -16,11 +16,8 @@ #include #include -#include -#include #include #include -#include #include #include "mlx5_defs.h" @@ -183,37 +180,10 @@ mlx5_tx_queue_stop_primary(struct rte_eth_dev *dev, uint16_t idx) MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); /* Move QP to RESET state. */ - if (txq_ctrl->obj->type == MLX5_TXQ_OBJ_TYPE_DEVX_SQ) { - struct mlx5_devx_modify_sq_attr msq_attr = { 0 }; - - /* Change queue state to reset with DevX. */ - msq_attr.sq_state = MLX5_SQC_STATE_RDY; - msq_attr.state = MLX5_SQC_STATE_RST; - ret = mlx5_devx_cmd_modify_sq(txq_ctrl->obj->sq_devx, - &msq_attr); - if (ret) { - DRV_LOG(ERR, "Cannot change the " - "Tx QP state to RESET %s", - strerror(errno)); - rte_errno = errno; - return ret; - } - } else { - struct ibv_qp_attr mod = { - .qp_state = IBV_QPS_RESET, - .port_num = (uint8_t)priv->dev_port, - }; - struct ibv_qp *qp = txq_ctrl->obj->qp; - - /* Change queue state to reset with Verbs. */ - ret = mlx5_glue->modify_qp(qp, &mod, IBV_QP_STATE); - if (ret) { - DRV_LOG(ERR, "Cannot change the Tx QP state to RESET " - "%s", strerror(errno)); - rte_errno = errno; - return ret; - } - } + ret = priv->obj_ops.txq_obj_modify(txq_ctrl->obj, MLX5_TXQ_MOD_RDY2RST, + (uint8_t)priv->dev_port); + if (ret) + return ret; /* Handle all send completions. */ txq_sync_cq(txq); /* Free elts stored in the SQ. */ @@ -282,70 +252,11 @@ mlx5_tx_queue_start_primary(struct rte_eth_dev *dev, uint16_t idx) int ret; MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); - if (txq_ctrl->obj->type == MLX5_TXQ_OBJ_TYPE_DEVX_SQ) { - struct mlx5_devx_modify_sq_attr msq_attr = { 0 }; - struct mlx5_txq_obj *obj = txq_ctrl->obj; - - 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) { - rte_errno = errno; - DRV_LOG(ERR, - "Cannot change the Tx QP state to RESET " - "%s", strerror(errno)); - return ret; - } - 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) { - rte_errno = errno; - DRV_LOG(ERR, - "Cannot change the Tx QP state to READY " - "%s", strerror(errno)); - return ret; - } - } else { - struct ibv_qp_attr mod = { - .qp_state = IBV_QPS_RESET, - .port_num = (uint8_t)priv->dev_port, - }; - struct ibv_qp *qp = txq_ctrl->obj->qp; - - ret = mlx5_glue->modify_qp(qp, &mod, IBV_QP_STATE); - if (ret) { - DRV_LOG(ERR, "Cannot change the Tx QP state to RESET " - "%s", strerror(errno)); - rte_errno = errno; - return ret; - } - mod.qp_state = IBV_QPS_INIT; - ret = mlx5_glue->modify_qp(qp, &mod, - (IBV_QP_STATE | IBV_QP_PORT)); - if (ret) { - DRV_LOG(ERR, "Cannot change Tx QP state to INIT %s", - strerror(errno)); - rte_errno = errno; - return ret; - } - mod.qp_state = IBV_QPS_RTR; - ret = mlx5_glue->modify_qp(qp, &mod, IBV_QP_STATE); - if (ret) { - DRV_LOG(ERR, "Cannot change Tx QP state to RTR %s", - strerror(errno)); - rte_errno = errno; - return ret; - } - mod.qp_state = IBV_QPS_RTS; - ret = mlx5_glue->modify_qp(qp, &mod, IBV_QP_STATE); - if (ret) { - DRV_LOG(ERR, "Cannot change Tx QP state to RTS %s", - strerror(errno)); - rte_errno = errno; - return ret; - } - } + ret = priv->obj_ops.txq_obj_modify(txq_ctrl->obj, + MLX5_TXQ_MOD_RST2RDY, + (uint8_t)priv->dev_port); + if (ret) + return ret; txq_ctrl->txq.wqe_ci = 0; txq_ctrl->txq.wqe_pi = 0; txq_ctrl->txq.elts_comp = 0; @@ -437,6 +348,7 @@ mlx5_tx_queue_pre_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t *desc) mlx5_txq_release(dev, idx); return 0; } + /** * DPDK callback to configure a TX queue. * @@ -509,15 +421,35 @@ mlx5_tx_hairpin_queue_setup(struct rte_eth_dev *dev, uint16_t idx, res = mlx5_tx_queue_pre_setup(dev, idx, &desc); if (res) return res; - if (hairpin_conf->peer_count != 1 || - hairpin_conf->peers[0].port != dev->data->port_id || - hairpin_conf->peers[0].queue >= priv->rxqs_n) { - DRV_LOG(ERR, "port %u unable to setup hairpin queue index %u " - " invalid hairpind configuration", dev->data->port_id, - idx); + if (hairpin_conf->peer_count != 1) { rte_errno = EINVAL; + DRV_LOG(ERR, "port %u unable to setup Tx hairpin queue index %u" + " peer count is %u", dev->data->port_id, + idx, hairpin_conf->peer_count); return -rte_errno; } + if (hairpin_conf->peers[0].port == dev->data->port_id) { + if (hairpin_conf->peers[0].queue >= priv->rxqs_n) { + rte_errno = EINVAL; + DRV_LOG(ERR, "port %u unable to setup Tx hairpin queue" + " index %u, Rx %u is larger than %u", + dev->data->port_id, idx, + hairpin_conf->peers[0].queue, priv->txqs_n); + return -rte_errno; + } + } else { + if (hairpin_conf->manual_bind == 0 || + hairpin_conf->tx_explicit == 0) { + rte_errno = EINVAL; + DRV_LOG(ERR, "port %u unable to setup Tx hairpin queue" + " index %u peer port %u with attributes %u %u", + dev->data->port_id, idx, + hairpin_conf->peers[0].port, + hairpin_conf->manual_bind, + hairpin_conf->tx_explicit); + return -rte_errno; + } + } txq_ctrl = mlx5_txq_hairpin_new(dev, idx, desc, hairpin_conf); if (!txq_ctrl) { DRV_LOG(ERR, "port %u unable to allocate queue index %u", @@ -588,7 +520,7 @@ txq_uar_ncattr_init(struct mlx5_txq_ctrl *txq_ctrl, size_t page_size) * @param txq_ctrl * Pointer to Tx queue control structure. */ -static void +void txq_uar_init(struct mlx5_txq_ctrl *txq_ctrl) { struct mlx5_priv *priv = txq_ctrl->priv; @@ -763,704 +695,6 @@ error: return -rte_errno; } -/** - * Create the Tx hairpin queue object. - * - * @param dev - * Pointer to Ethernet device. - * @param idx - * Queue index in DPDK Tx queue array - * - * @return - * The hairpin DevX object initialised, NULL otherwise and rte_errno is set. - */ -static struct mlx5_txq_obj * -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 = NULL; - uint32_t max_wq_data; - - MLX5_ASSERT(txq_data); - MLX5_ASSERT(!txq_ctrl->obj); - tmpl = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, sizeof(*tmpl), 0, - txq_ctrl->socket); - if (!tmpl) { - DRV_LOG(ERR, - "port %u Tx queue %u cannot allocate memory resources", - dev->data->port_id, txq_data->idx); - rte_errno = ENOMEM; - return NULL; - } - tmpl->type = MLX5_TXQ_OBJ_TYPE_DEVX_HAIRPIN; - 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); - mlx5_free(tmpl); - rte_errno = ERANGE; - return NULL; - } - 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); - mlx5_free(tmpl); - rte_errno = errno; - return NULL; - } - DRV_LOG(DEBUG, "port %u sxq %u updated with %p", dev->data->port_id, - idx, (void *)&tmpl); - rte_atomic32_inc(&tmpl->refcnt); - LIST_INSERT_HEAD(&priv->txqsobj, tmpl, next); - return tmpl; -} - -/** - * Destroy the Tx queue DevX object. - * - * @param txq_obj - * Txq object to destroy - */ -static void -txq_release_sq_resources(struct mlx5_txq_obj *txq_obj) -{ - MLX5_ASSERT(txq_obj->type == MLX5_TXQ_OBJ_TYPE_DEVX_SQ); - - if (txq_obj->sq_devx) - claim_zero(mlx5_devx_cmd_destroy(txq_obj->sq_devx)); - 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)); - if (txq_obj->sq_umem) - claim_zero(mlx5_glue->devx_umem_dereg(txq_obj->sq_umem)); - if (txq_obj->sq_buf) - mlx5_free(txq_obj->sq_buf); - if (txq_obj->cq_devx) - claim_zero(mlx5_devx_cmd_destroy(txq_obj->cq_devx)); - 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)); - if (txq_obj->cq_umem) - claim_zero(mlx5_glue->devx_umem_dereg(txq_obj->cq_umem)); - if (txq_obj->cq_buf) - mlx5_free(txq_obj->cq_buf); -} - -/** - * Create the Tx queue DevX object. - * - * @param dev - * Pointer to Ethernet device. - * @param idx - * Queue index in DPDK Tx queue array - * - * @return - * The DevX object initialised, NULL otherwise and rte_errno is set. - */ -static struct mlx5_txq_obj * -mlx5_txq_obj_devx_new(struct rte_eth_dev *dev, uint16_t 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 NULL; -#else - struct mlx5_priv *priv = dev->data->dev_private; - struct mlx5_dev_ctx_shared *sh = priv->sh; - 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 sq_attr = { 0 }; - struct mlx5_devx_modify_sq_attr msq_attr = { 0 }; - struct mlx5_devx_cq_attr cq_attr = { 0 }; - struct mlx5_txq_obj *txq_obj = NULL; - size_t page_size; - struct mlx5_cqe *cqe; - uint32_t i, nqe; - void *reg_addr; - size_t alignment = (size_t)-1; - int ret = 0; - - MLX5_ASSERT(txq_data); - MLX5_ASSERT(!txq_ctrl->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 NULL; - } - txq_obj = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, - sizeof(struct mlx5_txq_obj), 0, - txq_ctrl->socket); - if (!txq_obj) { - DRV_LOG(ERR, - "port %u Tx queue %u cannot allocate memory resources", - dev->data->port_id, txq_data->idx); - rte_errno = ENOMEM; - return NULL; - } - txq_obj->type = MLX5_TXQ_OBJ_TYPE_DEVX_SQ; - txq_obj->txq_ctrl = txq_ctrl; - txq_obj->dev = dev; - /* Create the Completion Queue. */ - nqe = (1UL << txq_data->elts_n) / MLX5_TX_COMP_THRESH + - 1 + MLX5_TX_COMP_THRESH_INLINE_DIV; - nqe = 1UL << log2above(nqe); - if (nqe > UINT16_MAX) { - DRV_LOG(ERR, - "port %u Tx queue %u requests to many CQEs %u", - dev->data->port_id, txq_data->idx, nqe); - rte_errno = EINVAL; - goto error; - } - /* Allocate memory buffer for CQEs. */ - alignment = MLX5_CQE_BUF_ALIGNMENT; - if (alignment == (size_t)-1) { - DRV_LOG(ERR, "Failed to get mem page size"); - rte_errno = ENOMEM; - goto error; - } - txq_obj->cq_buf = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, - nqe * sizeof(struct mlx5_cqe), - alignment, - 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; - goto error; - } - txq_data->cqe_n = log2above(nqe); - 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; - /* Register allocated buffer in user space with DevX. */ - txq_obj->cq_umem = mlx5_glue->devx_umem_reg - (sh->ctx, - (void *)txq_obj->cq_buf, - nqe * 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(sh->ctx, - &priv->dbrpgs, - &txq_obj->cq_dbrec_page); - if (txq_obj->cq_dbrec_offset < 0) - goto error; - txq_data->cq_db = (volatile uint32_t *)(txq_obj->cq_dbrec_page->dbrs + - txq_obj->cq_dbrec_offset); - *txq_data->cq_db = 0; - /* Create completion queue object with DevX. */ - 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(sh->tx_uar); - cq_attr.eqn = sh->txpp.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(nqe); - cq_attr.log_page_size = rte_log2_u32(page_size); - txq_obj->cq_devx = mlx5_devx_cmd_create_cq(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 < txq_data->cqe_s; i++) { - cqe->op_own = (MLX5_CQE_INVALID << 4) | MLX5_CQE_OWNER_MASK; - ++cqe; - } - /* Create the Work Queue. */ - nqe = RTE_MIN(1UL << txq_data->elts_n, - (uint32_t)sh->device_attr.max_qp_wr); - txq_obj->sq_buf = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, - nqe * sizeof(struct mlx5_wqe), - page_size, 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; - } - txq_data->wqe_n = log2above(nqe); - 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; - /* Register allocated buffer in user space with DevX. */ - txq_obj->sq_umem = mlx5_glue->devx_umem_reg - (sh->ctx, - (void *)txq_obj->sq_buf, - nqe * 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(sh->ctx, - &priv->dbrpgs, - &txq_obj->sq_dbrec_page); - if (txq_obj->sq_dbrec_offset < 0) - goto error; - 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; - /* Create Send Queue object with DevX. */ - sq_attr.tis_lst_sz = 1; - sq_attr.tis_num = 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(sh->tx_uar); - sq_attr.wq_attr.wq_type = MLX5_WQ_TYPE_CYCLIC; - sq_attr.wq_attr.pd = sh->pdn; - sq_attr.wq_attr.log_wq_stride = rte_log2_u32(MLX5_WQE_SIZE); - sq_attr.wq_attr.log_wq_sz = txq_data->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; - txq_obj->sq_devx = mlx5_devx_cmd_create_sq(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; - } - txq_data->qp_num_8s = txq_obj->sq_devx->id << 8; - /* Change Send Queue state to Ready-to-Send. */ - msq_attr.sq_state = MLX5_SQC_STATE_RST; - msq_attr.state = MLX5_SQC_STATE_RDY; - ret = mlx5_devx_cmd_modify_sq(txq_obj->sq_devx, &msq_attr); - if (ret) { - rte_errno = errno; - DRV_LOG(ERR, - "port %u Tx queue %u SP state to SQC_STATE_RDY failed", - dev->data->port_id, idx); - goto error; - } - txq_data->fcqs = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, - txq_data->cqe_s * sizeof(*txq_data->fcqs), - RTE_CACHE_LINE_SIZE, - txq_ctrl->socket); - if (!txq_data->fcqs) { - DRV_LOG(ERR, "port %u Tx queue %u cannot allocate memory (FCQ)", - dev->data->port_id, idx); - rte_errno = ENOMEM; - 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->config.devx && !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); - rte_atomic32_set(&txq_obj->refcnt, 1); - txq_uar_init(txq_ctrl); - LIST_INSERT_HEAD(&priv->txqsobj, txq_obj, next); - return txq_obj; -error: - ret = rte_errno; /* Save rte_errno before cleanup. */ - txq_release_sq_resources(txq_obj); - if (txq_data->fcqs) { - mlx5_free(txq_data->fcqs); - txq_data->fcqs = NULL; - } - mlx5_free(txq_obj); - rte_errno = ret; /* Restore rte_errno. */ - return NULL; -#endif -} - -/** - * Create the Tx queue Verbs object. - * - * @param dev - * Pointer to Ethernet device. - * @param idx - * Queue index in DPDK Tx queue array. - * @param type - * Type of the Tx queue object to create. - * - * @return - * The Verbs object initialised, NULL otherwise and rte_errno is set. - */ -struct mlx5_txq_obj * -mlx5_txq_obj_new(struct rte_eth_dev *dev, uint16_t idx, - enum mlx5_txq_obj_type type) -{ - 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 tmpl; - struct mlx5_txq_obj *txq_obj = NULL; - union { - struct ibv_qp_init_attr_ex init; - struct ibv_cq_init_attr_ex cq; - struct ibv_qp_attr mod; - } attr; - unsigned int cqe_n; - struct mlx5dv_qp qp = { .comp_mask = MLX5DV_QP_MASK_UAR_MMAP_OFFSET }; - struct mlx5dv_cq cq_info; - struct mlx5dv_obj obj; - const int desc = 1 << txq_data->elts_n; - int ret = 0; - - if (type == MLX5_TXQ_OBJ_TYPE_DEVX_HAIRPIN) - return mlx5_txq_obj_hairpin_new(dev, idx); - if (type == MLX5_TXQ_OBJ_TYPE_DEVX_SQ) - return mlx5_txq_obj_devx_new(dev, idx); -#ifdef HAVE_IBV_FLOW_DV_SUPPORT - /* If using DevX, need additional mask to read tisn value. */ - if (priv->config.devx && !priv->sh->tdn) - qp.comp_mask |= MLX5DV_QP_MASK_RAW_QP_HANDLES; -#endif - MLX5_ASSERT(txq_data); - priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_TX_QUEUE; - priv->verbs_alloc_ctx.obj = txq_ctrl; - if (mlx5_getenv_int("MLX5_ENABLE_CQE_COMPRESSION")) { - DRV_LOG(ERR, - "port %u MLX5_ENABLE_CQE_COMPRESSION must never be set", - dev->data->port_id); - rte_errno = EINVAL; - return NULL; - } - memset(&tmpl, 0, sizeof(struct mlx5_txq_obj)); - attr.cq = (struct ibv_cq_init_attr_ex){ - .comp_mask = 0, - }; - cqe_n = desc / MLX5_TX_COMP_THRESH + - 1 + MLX5_TX_COMP_THRESH_INLINE_DIV; - tmpl.cq = mlx5_glue->create_cq(priv->sh->ctx, cqe_n, NULL, NULL, 0); - if (tmpl.cq == NULL) { - DRV_LOG(ERR, "port %u Tx queue %u CQ creation failure", - dev->data->port_id, idx); - rte_errno = errno; - goto error; - } - attr.init = (struct ibv_qp_init_attr_ex){ - /* CQ to be associated with the send queue. */ - .send_cq = tmpl.cq, - /* CQ to be associated with the receive queue. */ - .recv_cq = tmpl.cq, - .cap = { - /* Max number of outstanding WRs. */ - .max_send_wr = - ((priv->sh->device_attr.max_qp_wr < - desc) ? - priv->sh->device_attr.max_qp_wr : - desc), - /* - * Max number of scatter/gather elements in a WR, - * must be 1 to prevent libmlx5 from trying to affect - * too much memory. TX gather is not impacted by the - * device_attr.max_sge limit and will still work - * properly. - */ - .max_send_sge = 1, - }, - .qp_type = IBV_QPT_RAW_PACKET, - /* - * Do *NOT* enable this, completions events are managed per - * Tx burst. - */ - .sq_sig_all = 0, - .pd = priv->sh->pd, - .comp_mask = IBV_QP_INIT_ATTR_PD, - }; - if (txq_data->inlen_send) - attr.init.cap.max_inline_data = txq_ctrl->max_inline_data; - if (txq_data->tso_en) { - attr.init.max_tso_header = txq_ctrl->max_tso_header; - attr.init.comp_mask |= IBV_QP_INIT_ATTR_MAX_TSO_HEADER; - } - tmpl.qp = mlx5_glue->create_qp_ex(priv->sh->ctx, &attr.init); - if (tmpl.qp == NULL) { - DRV_LOG(ERR, "port %u Tx queue %u QP creation failure", - dev->data->port_id, idx); - rte_errno = errno; - goto error; - } - attr.mod = (struct ibv_qp_attr){ - /* Move the QP to this state. */ - .qp_state = IBV_QPS_INIT, - /* IB device port number. */ - .port_num = (uint8_t)priv->dev_port, - }; - ret = mlx5_glue->modify_qp(tmpl.qp, &attr.mod, - (IBV_QP_STATE | IBV_QP_PORT)); - if (ret) { - DRV_LOG(ERR, - "port %u Tx queue %u QP state to IBV_QPS_INIT failed", - dev->data->port_id, idx); - rte_errno = errno; - goto error; - } - attr.mod = (struct ibv_qp_attr){ - .qp_state = IBV_QPS_RTR - }; - ret = mlx5_glue->modify_qp(tmpl.qp, &attr.mod, IBV_QP_STATE); - if (ret) { - DRV_LOG(ERR, - "port %u Tx queue %u QP state to IBV_QPS_RTR failed", - dev->data->port_id, idx); - rte_errno = errno; - goto error; - } - attr.mod.qp_state = IBV_QPS_RTS; - ret = mlx5_glue->modify_qp(tmpl.qp, &attr.mod, IBV_QP_STATE); - if (ret) { - DRV_LOG(ERR, - "port %u Tx queue %u QP state to IBV_QPS_RTS failed", - dev->data->port_id, idx); - rte_errno = errno; - goto error; - } - txq_obj = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, - sizeof(struct mlx5_txq_obj), 0, - txq_ctrl->socket); - if (!txq_obj) { - DRV_LOG(ERR, "port %u Tx queue %u cannot allocate memory", - dev->data->port_id, idx); - rte_errno = ENOMEM; - goto error; - } - obj.cq.in = tmpl.cq; - obj.cq.out = &cq_info; - obj.qp.in = tmpl.qp; - obj.qp.out = &qp; - ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_CQ | MLX5DV_OBJ_QP); - if (ret != 0) { - rte_errno = errno; - goto error; - } - if (cq_info.cqe_size != RTE_CACHE_LINE_SIZE) { - DRV_LOG(ERR, - "port %u wrong MLX5_CQE_SIZE environment variable" - " value: it should be set to %u", - dev->data->port_id, RTE_CACHE_LINE_SIZE); - rte_errno = EINVAL; - goto error; - } - txq_data->cqe_n = log2above(cq_info.cqe_cnt); - txq_data->cqe_s = 1 << txq_data->cqe_n; - txq_data->cqe_m = txq_data->cqe_s - 1; - txq_data->qp_num_8s = ((struct ibv_qp *)tmpl.qp)->qp_num << 8; - txq_data->wqes = qp.sq.buf; - txq_data->wqe_n = log2above(qp.sq.wqe_cnt); - txq_data->wqe_s = 1 << txq_data->wqe_n; - txq_data->wqe_m = txq_data->wqe_s - 1; - txq_data->wqes_end = txq_data->wqes + txq_data->wqe_s; - txq_data->qp_db = &qp.dbrec[MLX5_SND_DBR]; - txq_data->cq_db = cq_info.dbrec; - txq_data->cqes = (volatile struct mlx5_cqe *)cq_info.buf; - txq_data->cq_ci = 0; - txq_data->cq_pi = 0; - 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->fcqs = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, - txq_data->cqe_s * sizeof(*txq_data->fcqs), - RTE_CACHE_LINE_SIZE, txq_ctrl->socket); - if (!txq_data->fcqs) { - DRV_LOG(ERR, "port %u Tx queue %u cannot allocate memory (FCQ)", - dev->data->port_id, idx); - rte_errno = ENOMEM; - 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->config.devx && !priv->sh->tdn) { - ret = mlx5_devx_cmd_qp_query_tis_td(tmpl.qp, qp.tisn, - &priv->sh->tdn); - if (ret) { - DRV_LOG(ERR, "Fail to query port %u Tx queue %u QP TIS " - "transport domain", dev->data->port_id, idx); - rte_errno = EINVAL; - goto error; - } else { - DRV_LOG(DEBUG, "port %u Tx queue %u TIS number %d " - "transport domain %d", dev->data->port_id, - idx, qp.tisn, priv->sh->tdn); - } - } -#endif - txq_obj->qp = tmpl.qp; - txq_obj->cq = tmpl.cq; - rte_atomic32_inc(&txq_obj->refcnt); - txq_ctrl->bf_reg = qp.bf.reg; - if (qp.comp_mask & MLX5DV_QP_MASK_UAR_MMAP_OFFSET) { - txq_ctrl->uar_mmap_offset = qp.uar_mmap_offset; - DRV_LOG(DEBUG, "port %u: uar_mmap_offset 0x%"PRIx64, - dev->data->port_id, txq_ctrl->uar_mmap_offset); - } else { - DRV_LOG(ERR, - "port %u failed to retrieve UAR info, invalid" - " libmlx5.so", - dev->data->port_id); - rte_errno = EINVAL; - goto error; - } - txq_uar_init(txq_ctrl); - LIST_INSERT_HEAD(&priv->txqsobj, txq_obj, next); - txq_obj->txq_ctrl = txq_ctrl; - priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_NONE; - return txq_obj; -error: - ret = rte_errno; /* Save rte_errno before cleanup. */ - if (tmpl.cq) - claim_zero(mlx5_glue->destroy_cq(tmpl.cq)); - if (tmpl.qp) - claim_zero(mlx5_glue->destroy_qp(tmpl.qp)); - if (txq_data && txq_data->fcqs) { - mlx5_free(txq_data->fcqs); - txq_data->fcqs = NULL; - } - if (txq_obj) - mlx5_free(txq_obj); - priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_NONE; - rte_errno = ret; /* Restore rte_errno. */ - return NULL; -} - -/** - * Get an Tx queue Verbs object. - * - * @param dev - * Pointer to Ethernet device. - * @param idx - * Queue index in DPDK Tx queue array. - * - * @return - * The Verbs object if it exists. - */ -struct mlx5_txq_obj * -mlx5_txq_obj_get(struct rte_eth_dev *dev, uint16_t idx) -{ - struct mlx5_priv *priv = dev->data->dev_private; - struct mlx5_txq_ctrl *txq_ctrl; - - if (idx >= priv->txqs_n) - return NULL; - if (!(*priv->txqs)[idx]) - return NULL; - txq_ctrl = container_of((*priv->txqs)[idx], struct mlx5_txq_ctrl, txq); - if (txq_ctrl->obj) - rte_atomic32_inc(&txq_ctrl->obj->refcnt); - return txq_ctrl->obj; -} - -/** - * Release an Tx verbs queue object. - * - * @param txq_obj - * Verbs Tx queue object. - * - * @return - * 1 while a reference on it exists, 0 when freed. - */ -int -mlx5_txq_obj_release(struct mlx5_txq_obj *txq_obj) -{ - MLX5_ASSERT(txq_obj); - if (rte_atomic32_dec_and_test(&txq_obj->refcnt)) { - if (txq_obj->type == MLX5_TXQ_OBJ_TYPE_DEVX_HAIRPIN) { - if (txq_obj->tis) - claim_zero(mlx5_devx_cmd_destroy(txq_obj->tis)); - } else if (txq_obj->type == MLX5_TXQ_OBJ_TYPE_DEVX_SQ) { - txq_release_sq_resources(txq_obj); - } else { - claim_zero(mlx5_glue->destroy_qp(txq_obj->qp)); - claim_zero(mlx5_glue->destroy_cq(txq_obj->cq)); - } - if (txq_obj->txq_ctrl->txq.fcqs) { - mlx5_free(txq_obj->txq_ctrl->txq.fcqs); - txq_obj->txq_ctrl->txq.fcqs = NULL; - } - LIST_REMOVE(txq_obj, next); - mlx5_free(txq_obj); - return 0; - } - return 1; -} - /** * Verify the Verbs Tx queue list is empty * @@ -1907,7 +1141,7 @@ mlx5_txq_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, rte_errno = ENOMEM; goto error; } - rte_atomic32_inc(&tmpl->refcnt); + __atomic_fetch_add(&tmpl->refcnt, 1, __ATOMIC_RELAXED); tmpl->type = MLX5_TXQ_TYPE_STANDARD; LIST_INSERT_HEAD(&priv->txqsctrl, tmpl, next); return tmpl; @@ -1951,7 +1185,7 @@ mlx5_txq_hairpin_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, tmpl->txq.idx = idx; tmpl->hairpin_conf = *hairpin_conf; tmpl->type = MLX5_TXQ_TYPE_HAIRPIN; - rte_atomic32_inc(&tmpl->refcnt); + __atomic_fetch_add(&tmpl->refcnt, 1, __ATOMIC_RELAXED); LIST_INSERT_HEAD(&priv->txqsctrl, tmpl, next); return tmpl; } @@ -1971,13 +1205,12 @@ struct mlx5_txq_ctrl * mlx5_txq_get(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 *ctrl = NULL; - if ((*priv->txqs)[idx]) { - ctrl = container_of((*priv->txqs)[idx], struct mlx5_txq_ctrl, - txq); - mlx5_txq_obj_get(dev, idx); - rte_atomic32_inc(&ctrl->refcnt); + if (txq_data) { + ctrl = container_of(txq_data, struct mlx5_txq_ctrl, txq); + __atomic_fetch_add(&ctrl->refcnt, 1, __ATOMIC_RELAXED); } return ctrl; } @@ -1997,23 +1230,35 @@ int mlx5_txq_release(struct rte_eth_dev *dev, uint16_t idx) { struct mlx5_priv *priv = dev->data->dev_private; - struct mlx5_txq_ctrl *txq; + struct mlx5_txq_ctrl *txq_ctrl; if (!(*priv->txqs)[idx]) return 0; - txq = container_of((*priv->txqs)[idx], struct mlx5_txq_ctrl, txq); - if (txq->obj && !mlx5_txq_obj_release(txq->obj)) - txq->obj = NULL; - if (rte_atomic32_dec_and_test(&txq->refcnt)) { - txq_free_elts(txq); - mlx5_mr_btree_free(&txq->txq.mr_ctrl.cache_bh); - LIST_REMOVE(txq, next); - mlx5_free(txq); + txq_ctrl = container_of((*priv->txqs)[idx], struct mlx5_txq_ctrl, txq); + if (__atomic_sub_fetch(&txq_ctrl->refcnt, 1, __ATOMIC_RELAXED) != 0) + return 1; + if (txq_ctrl->obj) { + priv->obj_ops.txq_obj_release(txq_ctrl->obj); + LIST_REMOVE(txq_ctrl->obj, next); + mlx5_free(txq_ctrl->obj); + txq_ctrl->obj = NULL; + } + if (txq_ctrl->type == MLX5_TXQ_TYPE_STANDARD) { + if (txq_ctrl->txq.fcqs) { + mlx5_free(txq_ctrl->txq.fcqs); + txq_ctrl->txq.fcqs = NULL; + } + txq_free_elts(txq_ctrl); + } + dev->data->tx_queue_state[idx] = RTE_ETH_QUEUE_STATE_STOPPED; + if (!__atomic_load_n(&txq_ctrl->refcnt, __ATOMIC_RELAXED)) { + if (txq_ctrl->type == MLX5_TXQ_TYPE_STANDARD) + mlx5_mr_btree_free(&txq_ctrl->txq.mr_ctrl.cache_bh); + LIST_REMOVE(txq_ctrl, next); + mlx5_free(txq_ctrl); (*priv->txqs)[idx] = NULL; - dev->data->tx_queue_state[idx] = RTE_ETH_QUEUE_STATE_STOPPED; - return 0; } - return 1; + return 0; } /** @@ -2036,7 +1281,7 @@ mlx5_txq_releasable(struct rte_eth_dev *dev, uint16_t idx) if (!(*priv->txqs)[idx]) return -1; txq = container_of((*priv->txqs)[idx], struct mlx5_txq_ctrl, txq); - return (rte_atomic32_read(&txq->refcnt) == 1); + return (__atomic_load_n(&txq->refcnt, __ATOMIC_RELAXED) == 1); } /** @@ -2083,7 +1328,7 @@ mlx5_txq_dynf_timestamp_set(struct rte_eth_dev *dev) (RTE_MBUF_DYNFLAG_TX_TIMESTAMP_NAME, NULL); off = rte_mbuf_dynfield_lookup (RTE_MBUF_DYNFIELD_TIMESTAMP_NAME, NULL); - if (nbit > 0 && off >= 0 && sh->txpp.refcnt) + if (nbit >= 0 && off >= 0 && sh->txpp.refcnt) mask = 1ULL << nbit; for (i = 0; i != priv->txqs_n; ++i) { data = (*priv->txqs)[i];