-#endif
- return mlx5_glue->cq_ex_to_cq(mlx5_glue->dv_create_cq(priv->sh->ctx,
- &cq_attr.ibv,
- &cq_attr.mlx5));
-}
-
-/**
- * Create a WQ Verbs object.
- *
- * @param dev
- * Pointer to Ethernet device.
- * @param priv
- * Pointer to device private data.
- * @param rxq_data
- * Pointer to Rx queue data.
- * @param idx
- * Queue index in DPDK Rx queue array
- * @param wqe_n
- * Number of WQEs in WQ.
- * @param rxq_obj
- * Pointer to Rx queue object data.
- *
- * @return
- * The Verbs object initialised, NULL otherwise and rte_errno is set.
- */
-static struct ibv_wq *
-mlx5_ibv_wq_new(struct rte_eth_dev *dev, struct mlx5_priv *priv,
- struct mlx5_rxq_data *rxq_data, uint16_t idx,
- unsigned int wqe_n, struct mlx5_rxq_obj *rxq_obj)
-{
- struct {
- struct ibv_wq_init_attr ibv;
-#ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
- struct mlx5dv_wq_init_attr mlx5;
-#endif
- } wq_attr;
-
- wq_attr.ibv = (struct ibv_wq_init_attr){
- .wq_context = NULL, /* Could be useful in the future. */
- .wq_type = IBV_WQT_RQ,
- /* Max number of outstanding WRs. */
- .max_wr = wqe_n >> rxq_data->sges_n,
- /* Max number of scatter/gather elements in a WR. */
- .max_sge = 1 << rxq_data->sges_n,
- .pd = priv->sh->pd,
- .cq = rxq_obj->cq,
- .comp_mask = IBV_WQ_FLAGS_CVLAN_STRIPPING | 0,
- .create_flags = (rxq_data->vlan_strip ?
- IBV_WQ_FLAGS_CVLAN_STRIPPING : 0),
- };
- /* By default, FCS (CRC) is stripped by hardware. */
- if (rxq_data->crc_present) {
- wq_attr.ibv.create_flags |= IBV_WQ_FLAGS_SCATTER_FCS;
- wq_attr.ibv.comp_mask |= IBV_WQ_INIT_ATTR_FLAGS;
- }
- if (priv->config.hw_padding) {
-#if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
- wq_attr.ibv.create_flags |= IBV_WQ_FLAG_RX_END_PADDING;
- wq_attr.ibv.comp_mask |= IBV_WQ_INIT_ATTR_FLAGS;
-#elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
- wq_attr.ibv.create_flags |= IBV_WQ_FLAGS_PCI_WRITE_END_PADDING;
- wq_attr.ibv.comp_mask |= IBV_WQ_INIT_ATTR_FLAGS;
-#endif
- }
-#ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
- wq_attr.mlx5 = (struct mlx5dv_wq_init_attr){
- .comp_mask = 0,
- };
- if (mlx5_rxq_mprq_enabled(rxq_data)) {
- struct mlx5dv_striding_rq_init_attr *mprq_attr =
- &wq_attr.mlx5.striding_rq_attrs;
-
- wq_attr.mlx5.comp_mask |= MLX5DV_WQ_INIT_ATTR_MASK_STRIDING_RQ;
- *mprq_attr = (struct mlx5dv_striding_rq_init_attr){
- .single_stride_log_num_of_bytes = rxq_data->strd_sz_n,
- .single_wqe_log_num_of_strides = rxq_data->strd_num_n,
- .two_byte_shift_en = MLX5_MPRQ_TWO_BYTE_SHIFT,
- };
- }
- rxq_obj->wq = mlx5_glue->dv_create_wq(priv->sh->ctx, &wq_attr.ibv,
- &wq_attr.mlx5);
-#else
- rxq_obj->wq = mlx5_glue->create_wq(priv->sh->ctx, &wq_attr.ibv);
-#endif
- if (rxq_obj->wq) {
- /*
- * Make sure number of WRs*SGEs match expectations since a queue
- * cannot allocate more than "desc" buffers.
- */
- if (wq_attr.ibv.max_wr != (wqe_n >> rxq_data->sges_n) ||
- wq_attr.ibv.max_sge != (1u << rxq_data->sges_n)) {
- DRV_LOG(ERR,
- "port %u Rx queue %u requested %u*%u but got"
- " %u*%u WRs*SGEs",
- dev->data->port_id, idx,
- wqe_n >> rxq_data->sges_n,
- (1 << rxq_data->sges_n),
- wq_attr.ibv.max_wr, wq_attr.ibv.max_sge);
- claim_zero(mlx5_glue->destroy_wq(rxq_obj->wq));
- rxq_obj->wq = NULL;
- rte_errno = EINVAL;
- }
- }
- return rxq_obj->wq;
-}
-
-/**
- * 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.cqe_pad ?
- MLX5_WQ_END_PAD_MODE_ALIGN :
- MLX5_WQ_END_PAD_MODE_NONE;
- wq_attr->pd = priv->sh->pdn;
- wq_attr->dbr_addr = rxq_ctrl->dbr_offset;
- wq_attr->dbr_umem_id = rxq_ctrl->dbr_umem_id;
- wq_attr->dbr_umem_valid = 1;
- wq_attr->wq_umem_id = rxq_ctrl->wq_umem->umem_id;
- 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
- * @param cqn
- * CQ number to use with this RQ.
- *
- * @return
- * The DevX object initialised, NULL otherwise and rte_errno is set.
- */
-static struct mlx5_devx_obj *
-mlx5_devx_rq_new(struct rte_eth_dev *dev, uint16_t idx, uint32_t cqn)
-{
- 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;
- uint32_t wqe_n = 1 << (rxq_data->elts_n - rxq_data->sges_n);
- uint32_t wq_size = 0;
- uint32_t wqe_size = 0;
- uint32_t log_wqe_size = 0;
- void *buf = NULL;
- struct mlx5_devx_obj *rq;
-
- memset(&rq_attr, 0, sizeof(rq_attr));
- /* 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;
- buf = rte_calloc_socket(__func__, 1, wq_size, MLX5_WQE_BUF_ALIGNMENT,
- rxq_ctrl->socket);
- if (!buf)
- return NULL;
- rxq_data->wqes = buf;
- rxq_ctrl->wq_umem = mlx5_glue->devx_umem_reg(priv->sh->ctx,
- buf, wq_size, 0);
- if (!rxq_ctrl->wq_umem) {
- rte_free(buf);
- return NULL;
- }
- 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)
- rxq_release_rq_resources(rxq_ctrl);
- return rq;
-}
-
-/**
- * Create the Rx hairpin queue object.
- *
- * @param dev
- * Pointer to Ethernet device.
- * @param idx
- * Queue index in DPDK Rx queue array
- *
- * @return
- * The hairpin DevX object initialised, NULL otherwise and rte_errno is set.
- */
-static struct mlx5_rxq_obj *
-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 = NULL;
- int ret = 0;
-
- assert(rxq_data);
- assert(!rxq_ctrl->obj);
- tmpl = rte_calloc_socket(__func__, 1, sizeof(*tmpl), 0,
- rxq_ctrl->socket);
- if (!tmpl) {
- DRV_LOG(ERR,
- "port %u Rx queue %u cannot allocate verbs resources",
- dev->data->port_id, rxq_data->idx);
- rte_errno = ENOMEM;
- goto error;
- }
- tmpl->type = MLX5_RXQ_OBJ_TYPE_DEVX_HAIRPIN;
- tmpl->rxq_ctrl = rxq_ctrl;
- attr.hairpin = 1;
- /* Workaround for hairpin startup */
- attr.wq_attr.log_hairpin_num_packets = log2above(32);
- /* Workaround for packets larger than 1KB */
- attr.wq_attr.log_hairpin_data_sz =
- priv->config.hca_attr.log_max_hairpin_wq_data_sz;
- 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;
- goto error;
- }
- DRV_LOG(DEBUG, "port %u rxq %u updated with %p", dev->data->port_id,
- idx, (void *)&tmpl);
- rte_atomic32_inc(&tmpl->refcnt);
- LIST_INSERT_HEAD(&priv->rxqsobj, tmpl, next);
- priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_NONE;
- return tmpl;
-error:
- ret = rte_errno; /* Save rte_errno before cleanup. */
- if (tmpl->rq)
- mlx5_devx_cmd_destroy(tmpl->rq);
- rte_errno = ret; /* Restore rte_errno. */
- return NULL;
-}
-
-/**
- * Create the Rx queue Verbs/DevX object.
- *
- * @param dev
- * Pointer to Ethernet device.
- * @param idx
- * Queue index in DPDK Rx queue array
- * @param type
- * Type of Rx queue object to create.
- *
- * @return
- * The Verbs/DevX object initialised, NULL otherwise and rte_errno is set.
- */
-struct mlx5_rxq_obj *
-mlx5_rxq_obj_new(struct rte_eth_dev *dev, uint16_t idx,
- enum mlx5_rxq_obj_type type)
-{
- 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 ibv_wq_attr mod;
- unsigned int cqe_n;
- unsigned int wqe_n = 1 << rxq_data->elts_n;
- struct mlx5_rxq_obj *tmpl = NULL;
- struct mlx5dv_cq cq_info;
- struct mlx5dv_rwq rwq;
- int ret = 0;
- struct mlx5dv_obj obj;
-
- assert(rxq_data);
- assert(!rxq_ctrl->obj);
- if (type == MLX5_RXQ_OBJ_TYPE_DEVX_HAIRPIN)
- return mlx5_rxq_obj_hairpin_new(dev, idx);
- priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_RX_QUEUE;
- priv->verbs_alloc_ctx.obj = rxq_ctrl;
- tmpl = rte_calloc_socket(__func__, 1, sizeof(*tmpl), 0,
- rxq_ctrl->socket);
- if (!tmpl) {
- DRV_LOG(ERR,
- "port %u Rx queue %u cannot allocate verbs resources",
- dev->data->port_id, rxq_data->idx);
- rte_errno = ENOMEM;
- goto error;
- }
- tmpl->type = type;
- tmpl->rxq_ctrl = rxq_ctrl;
- if (rxq_ctrl->irq) {
- tmpl->channel = mlx5_glue->create_comp_channel(priv->sh->ctx);
- if (!tmpl->channel) {
- DRV_LOG(ERR, "port %u: comp channel creation failure",
- dev->data->port_id);
- rte_errno = ENOMEM;
- goto error;
- }
- }
- if (mlx5_rxq_mprq_enabled(rxq_data))
- cqe_n = wqe_n * (1 << rxq_data->strd_num_n) - 1;
- else
- cqe_n = wqe_n - 1;
- tmpl->cq = mlx5_ibv_cq_new(dev, priv, rxq_data, cqe_n, tmpl);
- if (!tmpl->cq) {
- DRV_LOG(ERR, "port %u Rx queue %u CQ creation failure",
- dev->data->port_id, idx);
- rte_errno = ENOMEM;
- goto error;
- }
- obj.cq.in = tmpl->cq;
- obj.cq.out = &cq_info;
- ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_CQ);
- if (ret) {
- rte_errno = ret;
- 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;
- }
- DRV_LOG(DEBUG, "port %u device_attr.max_qp_wr is %d",
- dev->data->port_id, priv->sh->device_attr.orig_attr.max_qp_wr);
- DRV_LOG(DEBUG, "port %u device_attr.max_sge is %d",
- dev->data->port_id, priv->sh->device_attr.orig_attr.max_sge);
- /* Allocate door-bell for types created with DevX. */
- if (tmpl->type != MLX5_RXQ_OBJ_TYPE_IBV) {
- struct mlx5_devx_dbr_page *dbr_page;
- int64_t dbr_offset;
-
- dbr_offset = mlx5_get_dbr(dev, &dbr_page);
- if (dbr_offset < 0)
- goto error;
- rxq_ctrl->dbr_offset = dbr_offset;
- rxq_ctrl->dbr_umem_id = dbr_page->umem->umem_id;
- rxq_ctrl->dbr_umem_id_valid = 1;
- rxq_data->rq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs +
- (uintptr_t)rxq_ctrl->dbr_offset);
- }
- if (tmpl->type == MLX5_RXQ_OBJ_TYPE_IBV) {
- tmpl->wq = mlx5_ibv_wq_new(dev, priv, rxq_data, idx, wqe_n,
- tmpl);
- if (!tmpl->wq) {
- DRV_LOG(ERR, "port %u Rx queue %u WQ creation failure",
- dev->data->port_id, idx);
- rte_errno = ENOMEM;
- goto error;
- }
- /* Change queue state to ready. */
- mod = (struct ibv_wq_attr){
- .attr_mask = IBV_WQ_ATTR_STATE,
- .wq_state = IBV_WQS_RDY,
- };
- ret = mlx5_glue->modify_wq(tmpl->wq, &mod);
- if (ret) {
- DRV_LOG(ERR,
- "port %u Rx queue %u WQ state to IBV_WQS_RDY"
- " failed", dev->data->port_id, idx);
- rte_errno = ret;
- goto error;
- }
- obj.rwq.in = tmpl->wq;
- obj.rwq.out = &rwq;
- ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_RWQ);
- if (ret) {
- rte_errno = ret;
- goto error;
- }
- rxq_data->wqes = rwq.buf;
- rxq_data->rq_db = rwq.dbrec;
- } else if (tmpl->type == MLX5_RXQ_OBJ_TYPE_DEVX_RQ) {
- struct mlx5_devx_modify_rq_attr rq_attr;
-
- memset(&rq_attr, 0, sizeof(rq_attr));
- tmpl->rq = mlx5_devx_rq_new(dev, idx, cq_info.cqn);
- 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. */
- rq_attr.rq_state = MLX5_RQC_STATE_RST;
- rq_attr.state = MLX5_RQC_STATE_RDY;
- ret = mlx5_devx_cmd_modify_rq(tmpl->rq, &rq_attr);
- if (ret)
- goto error;
- }
- /* Fill the rings. */
- rxq_data->cqe_n = log2above(cq_info.cqe_cnt);
- rxq_data->cq_db = cq_info.dbrec;
- rxq_data->cqes = (volatile struct mlx5_cqe (*)[])(uintptr_t)cq_info.buf;
- rxq_data->cq_uar = cq_info.cq_uar;
- rxq_data->cqn = cq_info.cqn;
- rxq_data->cq_arm_sn = 0;
- mlx5_rxq_initialize(rxq_data);
- rxq_data->cq_ci = 0;
- DRV_LOG(DEBUG, "port %u rxq %u updated with %p", dev->data->port_id,
- idx, (void *)&tmpl);
- rte_atomic32_inc(&tmpl->refcnt);
- LIST_INSERT_HEAD(&priv->rxqsobj, tmpl, next);
- priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_NONE;
- return tmpl;
-error:
- if (tmpl) {
- ret = rte_errno; /* Save rte_errno before cleanup. */
- if (tmpl->type == MLX5_RXQ_OBJ_TYPE_IBV && tmpl->wq)
- claim_zero(mlx5_glue->destroy_wq(tmpl->wq));
- else if (tmpl->type == MLX5_RXQ_OBJ_TYPE_DEVX_RQ && tmpl->rq)
- claim_zero(mlx5_devx_cmd_destroy(tmpl->rq));
- if (tmpl->cq)
- claim_zero(mlx5_glue->destroy_cq(tmpl->cq));
- if (tmpl->channel)
- claim_zero(mlx5_glue->destroy_comp_channel
- (tmpl->channel));
- rte_free(tmpl);
- rte_errno = ret; /* Restore rte_errno. */
- }
- if (type == MLX5_RXQ_OBJ_TYPE_DEVX_RQ)
- rxq_release_rq_resources(rxq_ctrl);
- priv->verbs_alloc_ctx.type = MLX5_VERBS_ALLOC_TYPE_NONE;
- return NULL;
-}
-
-/**
- * Verify the Rx queue objects list is empty
- *
- * @param dev
- * Pointer to Ethernet device.
- *
- * @return
- * The number of objects not released.
- */
-int
-mlx5_rxq_obj_verify(struct rte_eth_dev *dev)
-{
- struct mlx5_priv *priv = dev->data->dev_private;
- int ret = 0;
- struct mlx5_rxq_obj *rxq_obj;
-
- LIST_FOREACH(rxq_obj, &priv->rxqsobj, next) {
- DRV_LOG(DEBUG, "port %u Rx queue %u still referenced",
- dev->data->port_id, rxq_obj->rxq_ctrl->rxq.idx);
- ++ret;
- }
- return ret;