From: Matan Azrad Date: Wed, 20 Jan 2021 11:29:29 +0000 (+0000) Subject: compress/mlx5: support queue pair operations X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=8619fcd5161b2fffc7fdf2a78ff5fa7bcdc0c4a5;p=dpdk.git compress/mlx5: support queue pair operations Add support for the next operations: - queue_pair_setup - queue_pair_release Create and initialize DevX SQ and CQ for each compress API queue-pair. Signed-off-by: Matan Azrad Acked-by: Viacheslav Ovsiienko --- diff --git a/drivers/compress/mlx5/mlx5_compress.c b/drivers/compress/mlx5/mlx5_compress.c index efb77d0dca..a2507c2ed7 100644 --- a/drivers/compress/mlx5/mlx5_compress.c +++ b/drivers/compress/mlx5/mlx5_compress.c @@ -15,6 +15,8 @@ #include #include #include +#include +#include #include #include "mlx5_compress_utils.h" @@ -36,6 +38,20 @@ struct mlx5_compress_priv { struct rte_compressdev_config dev_config; }; +struct mlx5_compress_qp { + uint16_t qp_id; + uint16_t entries_n; + uint16_t pi; + uint16_t ci; + volatile uint64_t *uar_addr; + int socket_id; + struct mlx5_devx_cq cq; + struct mlx5_devx_sq sq; + struct mlx5_pmd_mr opaque_mr; + struct rte_comp_op **ops; + struct mlx5_compress_priv *priv; +}; + TAILQ_HEAD(mlx5_compress_privs, mlx5_compress_priv) mlx5_compress_priv_list = TAILQ_HEAD_INITIALIZER(mlx5_compress_priv_list); static pthread_mutex_t priv_list_lock = PTHREAD_MUTEX_INITIALIZER; @@ -77,6 +93,134 @@ mlx5_compress_dev_close(struct rte_compressdev *dev) return 0; } +static int +mlx5_compress_qp_release(struct rte_compressdev *dev, uint16_t qp_id) +{ + struct mlx5_compress_qp *qp = dev->data->queue_pairs[qp_id]; + + if (qp->sq.sq != NULL) + mlx5_devx_sq_destroy(&qp->sq); + if (qp->cq.cq != NULL) + mlx5_devx_cq_destroy(&qp->cq); + if (qp->opaque_mr.obj != NULL) { + void *opaq = qp->opaque_mr.addr; + + mlx5_common_verbs_dereg_mr(&qp->opaque_mr); + if (opaq != NULL) + rte_free(opaq); + } + rte_free(qp); + dev->data->queue_pairs[qp_id] = NULL; + return 0; +} + +static void +mlx5_compress_init_sq(struct mlx5_compress_qp *qp) +{ + volatile struct mlx5_gga_wqe *restrict wqe = + (volatile struct mlx5_gga_wqe *)qp->sq.wqes; + volatile struct mlx5_gga_compress_opaque *opaq = qp->opaque_mr.addr; + const uint32_t sq_ds = rte_cpu_to_be_32((qp->sq.sq->id << 8) | 4u); + const uint32_t flags = RTE_BE32(MLX5_COMP_ALWAYS << + MLX5_COMP_MODE_OFFSET); + const uint32_t opaq_lkey = rte_cpu_to_be_32(qp->opaque_mr.lkey); + int i; + + /* All the next fields state should stay constant. */ + for (i = 0; i < qp->entries_n; ++i, ++wqe) { + wqe->sq_ds = sq_ds; + wqe->flags = flags; + wqe->opaque_lkey = opaq_lkey; + wqe->opaque_vaddr = rte_cpu_to_be_64 + ((uint64_t)(uintptr_t)&opaq[i]); + } +} + +static int +mlx5_compress_qp_setup(struct rte_compressdev *dev, uint16_t qp_id, + uint32_t max_inflight_ops, int socket_id) +{ + struct mlx5_compress_priv *priv = dev->data->dev_private; + struct mlx5_compress_qp *qp; + struct mlx5_devx_cq_attr cq_attr = { + .uar_page_id = mlx5_os_get_devx_uar_page_id(priv->uar), + }; + struct mlx5_devx_create_sq_attr sq_attr = { + .user_index = qp_id, + .wq_attr = (struct mlx5_devx_wq_attr){ + .pd = priv->pdn, + .uar_page = mlx5_os_get_devx_uar_page_id(priv->uar), + }, + }; + struct mlx5_devx_modify_sq_attr modify_attr = { + .state = MLX5_SQC_STATE_RDY, + }; + uint32_t log_ops_n = rte_log2_u32(max_inflight_ops); + uint32_t alloc_size = sizeof(*qp); + void *opaq_buf; + int ret; + + alloc_size = RTE_ALIGN(alloc_size, RTE_CACHE_LINE_SIZE); + alloc_size += sizeof(struct rte_comp_op *) * (1u << log_ops_n); + qp = rte_zmalloc_socket(__func__, alloc_size, RTE_CACHE_LINE_SIZE, + socket_id); + if (qp == NULL) { + DRV_LOG(ERR, "Failed to allocate qp memory."); + rte_errno = ENOMEM; + return -rte_errno; + } + dev->data->queue_pairs[qp_id] = qp; + opaq_buf = rte_calloc(__func__, 1u << log_ops_n, + sizeof(struct mlx5_gga_compress_opaque), + sizeof(struct mlx5_gga_compress_opaque)); + if (opaq_buf == NULL) { + DRV_LOG(ERR, "Failed to allocate opaque memory."); + rte_errno = ENOMEM; + goto err; + } + qp->entries_n = 1 << log_ops_n; + qp->socket_id = socket_id; + qp->qp_id = qp_id; + qp->priv = priv; + qp->ops = (struct rte_comp_op **)RTE_ALIGN((uintptr_t)(qp + 1), + RTE_CACHE_LINE_SIZE); + qp->uar_addr = mlx5_os_get_devx_uar_reg_addr(priv->uar); + MLX5_ASSERT(qp->uar_addr); + if (mlx5_common_verbs_reg_mr(priv->pd, opaq_buf, qp->entries_n * + sizeof(struct mlx5_gga_compress_opaque), + &qp->opaque_mr) != 0) { + rte_free(opaq_buf); + DRV_LOG(ERR, "Failed to register opaque MR."); + rte_errno = ENOMEM; + goto err; + } + ret = mlx5_devx_cq_create(priv->ctx, &qp->cq, log_ops_n, &cq_attr, + socket_id); + if (ret != 0) { + DRV_LOG(ERR, "Failed to create CQ."); + goto err; + } + sq_attr.cqn = qp->cq.cq->id; + ret = mlx5_devx_sq_create(priv->ctx, &qp->sq, log_ops_n, &sq_attr, + socket_id); + if (ret != 0) { + DRV_LOG(ERR, "Failed to create SQ."); + goto err; + } + mlx5_compress_init_sq(qp); + ret = mlx5_devx_cmd_modify_sq(qp->sq.sq, &modify_attr); + if (ret != 0) { + DRV_LOG(ERR, "Can't change SQ state to ready."); + goto err; + } + DRV_LOG(INFO, "QP %u: SQN=0x%X CQN=0x%X entries num = %u\n", + (uint32_t)qp_id, qp->sq.sq->id, qp->cq.cq->id, qp->entries_n); + return 0; +err: + mlx5_compress_qp_release(dev, qp_id); + return -1; +} + static struct rte_compressdev_ops mlx5_compress_ops = { .dev_configure = mlx5_compress_dev_configure, .dev_start = NULL, @@ -85,8 +229,8 @@ static struct rte_compressdev_ops mlx5_compress_ops = { .dev_infos_get = mlx5_compress_dev_info_get, .stats_get = NULL, .stats_reset = NULL, - .queue_pair_setup = NULL, - .queue_pair_release = NULL, + .queue_pair_setup = mlx5_compress_qp_setup, + .queue_pair_release = mlx5_compress_qp_release, .private_xform_create = NULL, .private_xform_free = NULL, .stream_create = NULL,