X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx5%2Fmlx5_txq.c;h=0f30a5d529167b87d394c04aac9ff8228437ff81;hb=1be514fbcea9e8964296b46c91dbb56715503ae7;hp=a6e25638aedcae2c6866fd60dc07634b346c1dc5;hpb=894c4a8e5af6fc609c2401b01a99d94de390ba53;p=dpdk.git diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c index a6e25638ae..0f30a5d529 100644 --- a/drivers/net/mlx5/mlx5_txq.c +++ b/drivers/net/mlx5/mlx5_txq.c @@ -4,35 +4,27 @@ */ #include -#include #include #include #include #include -#include #include -/* Verbs header. */ -/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */ -#ifdef PEDANTIC -#pragma GCC diagnostic ignored "-Wpedantic" -#endif -#include -#ifdef PEDANTIC -#pragma GCC diagnostic error "-Wpedantic" -#endif - #include #include #include #include +#include + +#include +#include +#include -#include "mlx5_utils.h" #include "mlx5_defs.h" +#include "mlx5_utils.h" #include "mlx5.h" #include "mlx5_rxtx.h" #include "mlx5_autoconf.h" -#include "mlx5_glue.h" /** * Allocate TX queue elements. @@ -61,7 +53,7 @@ txq_alloc_elts(struct mlx5_txq_ctrl *txq_ctrl) * @param txq_ctrl * Pointer to TX queue structure. */ -static void +void txq_free_elts(struct mlx5_txq_ctrl *txq_ctrl) { const uint16_t elts_n = 1 << txq_ctrl->txq.elts_n; @@ -79,9 +71,9 @@ txq_free_elts(struct mlx5_txq_ctrl *txq_ctrl) while (elts_tail != elts_head) { struct rte_mbuf *elt = (*elts)[elts_tail & elts_m]; - assert(elt != NULL); + MLX5_ASSERT(elt != NULL); rte_pktmbuf_free_seg(elt); -#ifndef NDEBUG +#ifdef RTE_LIBRTE_MLX5_DEBUG /* Poisoning. */ memset(&(*elts)[elts_tail & elts_m], 0x77, @@ -114,6 +106,8 @@ mlx5_get_tx_port_offloads(struct rte_eth_dev *dev) DEV_TX_OFFLOAD_TCP_CKSUM); if (config->tso) offloads |= DEV_TX_OFFLOAD_TCP_TSO; + if (config->tx_pp) + offloads |= DEV_TX_OFFLOAD_SEND_ON_TIMESTAMP; if (config->swp) { if (config->hw_csum) offloads |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM; @@ -126,58 +120,219 @@ mlx5_get_tx_port_offloads(struct rte_eth_dev *dev) offloads |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM; if (config->tso) offloads |= (DEV_TX_OFFLOAD_VXLAN_TNL_TSO | - DEV_TX_OFFLOAD_GRE_TNL_TSO); + DEV_TX_OFFLOAD_GRE_TNL_TSO | + DEV_TX_OFFLOAD_GENEVE_TNL_TSO); } -#ifdef HAVE_IBV_FLOW_DV_SUPPORT - if (config->dv_flow_en) - offloads |= DEV_TX_OFFLOAD_MATCH_METADATA; -#endif return offloads; } +/* Fetches and drops all SW-owned and error CQEs to synchronize CQ. */ +static void +txq_sync_cq(struct mlx5_txq_data *txq) +{ + volatile struct mlx5_cqe *cqe; + int ret, i; + + i = txq->cqe_s; + do { + cqe = &txq->cqes[txq->cq_ci & txq->cqe_m]; + ret = check_cqe(cqe, txq->cqe_s, txq->cq_ci); + if (unlikely(ret != MLX5_CQE_STATUS_SW_OWN)) { + if (likely(ret != MLX5_CQE_STATUS_ERR)) { + /* No new CQEs in completion queue. */ + MLX5_ASSERT(ret == MLX5_CQE_STATUS_HW_OWN); + break; + } + } + ++txq->cq_ci; + } while (--i); + /* Move all CQEs to HW ownership. */ + for (i = 0; i < txq->cqe_s; i++) { + cqe = &txq->cqes[i]; + cqe->op_own = MLX5_CQE_INVALIDATE; + } + /* Resync CQE and WQE (WQ in reset state). */ + rte_io_wmb(); + *txq->cq_db = rte_cpu_to_be_32(txq->cq_ci); + rte_io_wmb(); +} + /** - * DPDK callback to configure a TX queue. + * Tx queue stop. Device queue goes to the idle state, + * all involved mbufs are freed from elts/WQ. * * @param dev * Pointer to Ethernet device structure. * @param idx - * TX queue index. - * @param desc - * Number of descriptors to configure in queue. - * @param socket - * NUMA socket on which memory must be allocated. - * @param[in] conf - * Thresholds parameters. + * Tx queue index. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int -mlx5_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, - unsigned int socket, const struct rte_eth_txconf *conf) +mlx5_tx_queue_stop_primary(struct rte_eth_dev *dev, uint16_t idx) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_txq_data *txq = (*priv->txqs)[idx]; struct mlx5_txq_ctrl *txq_ctrl = - container_of(txq, struct mlx5_txq_ctrl, txq); + container_of(txq, struct mlx5_txq_ctrl, txq); + int ret; + + MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); + /* Move QP to RESET state. */ + 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. */ + txq_free_elts(txq_ctrl); + /* Prevent writing new pkts to SQ by setting no free WQE.*/ + txq->wqe_ci = txq->wqe_s; + txq->wqe_pi = 0; + txq->elts_comp = 0; + /* Set the actual queue state. */ + dev->data->tx_queue_state[idx] = RTE_ETH_QUEUE_STATE_STOPPED; + return 0; +} + +/** + * Tx queue stop. Device queue goes to the idle state, + * all involved mbufs are freed from elts/WQ. + * + * @param dev + * Pointer to Ethernet device structure. + * @param idx + * Tx queue index. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +int +mlx5_tx_queue_stop(struct rte_eth_dev *dev, uint16_t idx) +{ + int ret; + + if (rte_eth_dev_is_tx_hairpin_queue(dev, idx)) { + DRV_LOG(ERR, "Hairpin queue can't be stopped"); + rte_errno = EINVAL; + return -EINVAL; + } + if (dev->data->tx_queue_state[idx] == RTE_ETH_QUEUE_STATE_STOPPED) + return 0; + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { + ret = mlx5_mp_os_req_queue_control(dev, idx, + MLX5_MP_REQ_QUEUE_TX_STOP); + } else { + ret = mlx5_tx_queue_stop_primary(dev, idx); + } + return ret; +} + +/** + * Rx queue start. Device queue goes to the ready state, + * all required mbufs are allocated and WQ is replenished. + * + * @param dev + * Pointer to Ethernet device structure. + * @param idx + * RX queue index. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +int +mlx5_tx_queue_start_primary(struct rte_eth_dev *dev, uint16_t idx) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_txq_data *txq = (*priv->txqs)[idx]; + struct mlx5_txq_ctrl *txq_ctrl = + container_of(txq, struct mlx5_txq_ctrl, txq); + int ret; + + MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); + 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; + /* Set the actual queue state. */ + dev->data->tx_queue_state[idx] = RTE_ETH_QUEUE_STATE_STARTED; + return 0; +} + +/** + * Rx queue start. Device queue goes to the ready state, + * all required mbufs are allocated and WQ is replenished. + * + * @param dev + * Pointer to Ethernet device structure. + * @param idx + * RX queue index. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +int +mlx5_tx_queue_start(struct rte_eth_dev *dev, uint16_t idx) +{ + int ret; + + if (rte_eth_dev_is_tx_hairpin_queue(dev, idx)) { + DRV_LOG(ERR, "Hairpin queue can't be started"); + rte_errno = EINVAL; + return -EINVAL; + } + if (dev->data->tx_queue_state[idx] == RTE_ETH_QUEUE_STATE_STARTED) + return 0; + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { + ret = mlx5_mp_os_req_queue_control(dev, idx, + MLX5_MP_REQ_QUEUE_TX_START); + } else { + ret = mlx5_tx_queue_start_primary(dev, idx); + } + return ret; +} + +/** + * Tx queue presetup checks. + * + * @param dev + * Pointer to Ethernet device structure. + * @param idx + * Tx queue index. + * @param desc + * Number of descriptors to configure in queue. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +static int +mlx5_tx_queue_pre_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t *desc) +{ + struct mlx5_priv *priv = dev->data->dev_private; - if (desc <= MLX5_TX_COMP_THRESH) { + if (*desc <= MLX5_TX_COMP_THRESH) { DRV_LOG(WARNING, "port %u number of descriptors requested for Tx queue" " %u must be higher than MLX5_TX_COMP_THRESH, using %u" - " instead of %u", - dev->data->port_id, idx, MLX5_TX_COMP_THRESH + 1, desc); - desc = MLX5_TX_COMP_THRESH + 1; + " instead of %u", dev->data->port_id, idx, + MLX5_TX_COMP_THRESH + 1, *desc); + *desc = MLX5_TX_COMP_THRESH + 1; } - if (!rte_is_power_of_2(desc)) { - desc = 1 << log2above(desc); + if (!rte_is_power_of_2(*desc)) { + *desc = 1 << log2above(*desc); DRV_LOG(WARNING, "port %u increased number of descriptors in Tx queue" " %u to the next power of two (%d)", - dev->data->port_id, idx, desc); + dev->data->port_id, idx, *desc); } DRV_LOG(DEBUG, "port %u configuring queue %u for %u descriptors", - dev->data->port_id, idx, desc); + dev->data->port_id, idx, *desc); if (idx >= priv->txqs_n) { DRV_LOG(ERR, "port %u Tx queue index out of range (%u >= %u)", dev->data->port_id, idx, priv->txqs_n); @@ -191,6 +346,39 @@ mlx5_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, return -rte_errno; } mlx5_txq_release(dev, idx); + return 0; +} + +/** + * DPDK callback to configure a TX queue. + * + * @param dev + * Pointer to Ethernet device structure. + * @param idx + * TX queue index. + * @param desc + * Number of descriptors to configure in queue. + * @param socket + * NUMA socket on which memory must be allocated. + * @param[in] conf + * Thresholds parameters. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +int +mlx5_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, + unsigned int socket, const struct rte_eth_txconf *conf) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_txq_data *txq = (*priv->txqs)[idx]; + struct mlx5_txq_ctrl *txq_ctrl = + container_of(txq, struct mlx5_txq_ctrl, txq); + int res; + + res = mlx5_tx_queue_pre_setup(dev, idx, &desc); + if (res) + return res; txq_ctrl = mlx5_txq_new(dev, idx, desc, socket, conf); if (!txq_ctrl) { DRV_LOG(ERR, "port %u unable to allocate queue index %u", @@ -200,6 +388,78 @@ mlx5_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, DRV_LOG(DEBUG, "port %u adding Tx queue %u to list", dev->data->port_id, idx); (*priv->txqs)[idx] = &txq_ctrl->txq; + dev->data->tx_queue_state[idx] = RTE_ETH_QUEUE_STATE_STARTED; + return 0; +} + +/** + * DPDK callback to configure a TX hairpin queue. + * + * @param dev + * Pointer to Ethernet device structure. + * @param idx + * TX queue index. + * @param desc + * Number of descriptors to configure in queue. + * @param[in] hairpin_conf + * The hairpin binding configuration. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +int +mlx5_tx_hairpin_queue_setup(struct rte_eth_dev *dev, uint16_t idx, + uint16_t desc, + const struct rte_eth_hairpin_conf *hairpin_conf) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_txq_data *txq = (*priv->txqs)[idx]; + struct mlx5_txq_ctrl *txq_ctrl = + container_of(txq, struct mlx5_txq_ctrl, txq); + int res; + + res = mlx5_tx_queue_pre_setup(dev, idx, &desc); + if (res) + return res; + 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", + dev->data->port_id, idx); + return -rte_errno; + } + DRV_LOG(DEBUG, "port %u adding Tx queue %u to list", + dev->data->port_id, idx); + (*priv->txqs)[idx] = &txq_ctrl->txq; + dev->data->tx_queue_state[idx] = RTE_ETH_QUEUE_STATE_HAIRPIN; return 0; } @@ -223,37 +483,68 @@ mlx5_tx_queue_release(void *dpdk_txq) priv = txq_ctrl->priv; for (i = 0; (i != priv->txqs_n); ++i) if ((*priv->txqs)[i] == txq) { - mlx5_txq_release(ETH_DEV(priv), i); DRV_LOG(DEBUG, "port %u removing Tx queue %u from list", PORT_ID(priv), txq->idx); + mlx5_txq_release(ETH_DEV(priv), i); break; } } /** - * Initialize Tx UAR registers for primary process. + * Configure the doorbell register non-cached attribute. * * @param txq_ctrl * Pointer to Tx queue control structure. + * @param page_size + * Systme page size */ static void +txq_uar_ncattr_init(struct mlx5_txq_ctrl *txq_ctrl, size_t page_size) +{ + struct mlx5_priv *priv = txq_ctrl->priv; + off_t cmd; + + txq_ctrl->txq.db_heu = priv->config.dbnc == MLX5_TXDB_HEURISTIC; + txq_ctrl->txq.db_nc = 0; + /* Check the doorbell register mapping type. */ + cmd = txq_ctrl->uar_mmap_offset / page_size; + cmd >>= MLX5_UAR_MMAP_CMD_SHIFT; + cmd &= MLX5_UAR_MMAP_CMD_MASK; + if (cmd == MLX5_MMAP_GET_NC_PAGES_CMD) + txq_ctrl->txq.db_nc = 1; +} + +/** + * Initialize Tx UAR registers for primary process. + * + * @param txq_ctrl + * Pointer to Tx queue control structure. + */ +void txq_uar_init(struct mlx5_txq_ctrl *txq_ctrl) { struct mlx5_priv *priv = txq_ctrl->priv; struct mlx5_proc_priv *ppriv = MLX5_PROC_PRIV(PORT_ID(priv)); #ifndef RTE_ARCH_64 unsigned int lock_idx; - const size_t page_size = sysconf(_SC_PAGESIZE); #endif + const size_t page_size = rte_mem_page_size(); + if (page_size == (size_t)-1) { + DRV_LOG(ERR, "Failed to get mem page size"); + rte_errno = ENOMEM; + } - assert(rte_eal_process_type() == RTE_PROC_PRIMARY); - assert(ppriv); + if (txq_ctrl->type != MLX5_TXQ_TYPE_STANDARD) + return; + MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); + MLX5_ASSERT(ppriv); ppriv->uar_table[txq_ctrl->txq.idx] = txq_ctrl->bf_reg; + txq_uar_ncattr_init(txq_ctrl, page_size); #ifndef RTE_ARCH_64 /* Assign an UAR lock according to UAR page number */ lock_idx = (txq_ctrl->uar_mmap_offset / page_size) & MLX5_UAR_PAGE_NUM_MASK; - txq_ctrl->txq.uar_lock = &priv->uar_lock[lock_idx]; + txq_ctrl->txq.uar_lock = &priv->sh->uar_lock[lock_idx]; #endif } @@ -280,18 +571,25 @@ txq_uar_init_secondary(struct mlx5_txq_ctrl *txq_ctrl, int fd) void *addr; uintptr_t uar_va; uintptr_t offset; - const size_t page_size = sysconf(_SC_PAGESIZE); + const size_t 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 -rte_errno; + } - assert(ppriv); + if (txq_ctrl->type != MLX5_TXQ_TYPE_STANDARD) + return 0; + MLX5_ASSERT(ppriv); /* * As rdma-core, UARs are mapped in size of OS page * size. Ref to libmlx5 function: mlx5_init_context() */ uar_va = (uintptr_t)txq_ctrl->bf_reg; offset = uar_va & (page_size - 1); /* Offset in page. */ - addr = mmap(NULL, page_size, PROT_WRITE, MAP_SHARED, fd, - txq_ctrl->uar_mmap_offset); - if (addr == MAP_FAILED) { + addr = rte_mem_map(NULL, page_size, RTE_PROT_WRITE, RTE_MAP_SHARED, + fd, txq_ctrl->uar_mmap_offset); + if (!addr) { DRV_LOG(ERR, "port %u mmap failed for BF reg of txq %u", txq->port_id, txq->idx); @@ -300,6 +598,7 @@ txq_uar_init_secondary(struct mlx5_txq_ctrl *txq_ctrl, int fd) } addr = RTE_PTR_ADD(addr, offset); ppriv->uar_table[txq->idx] = addr; + txq_uar_ncattr_init(txq_ctrl, page_size); return 0; } @@ -313,11 +612,41 @@ static void txq_uar_uninit_secondary(struct mlx5_txq_ctrl *txq_ctrl) { struct mlx5_proc_priv *ppriv = MLX5_PROC_PRIV(PORT_ID(txq_ctrl->priv)); - const size_t page_size = sysconf(_SC_PAGESIZE); void *addr; + const size_t page_size = rte_mem_page_size(); + if (page_size == (size_t)-1) { + DRV_LOG(ERR, "Failed to get mem page size"); + rte_errno = ENOMEM; + } + if (txq_ctrl->type != MLX5_TXQ_TYPE_STANDARD) + return; addr = ppriv->uar_table[txq_ctrl->txq.idx]; - munmap(RTE_PTR_ALIGN_FLOOR(addr, page_size), page_size); + rte_mem_unmap(RTE_PTR_ALIGN_FLOOR(addr, page_size), page_size); +} + +/** + * Deinitialize Tx UAR registers for secondary process. + * + * @param dev + * Pointer to Ethernet device. + */ +void +mlx5_tx_uar_uninit_secondary(struct rte_eth_dev *dev) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_txq_data *txq; + struct mlx5_txq_ctrl *txq_ctrl; + unsigned int i; + + MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_SECONDARY); + for (i = 0; i != priv->txqs_n; ++i) { + if (!(*priv->txqs)[i]) + continue; + txq = (*priv->txqs)[i]; + txq_ctrl = container_of(txq, struct mlx5_txq_ctrl, txq); + txq_uar_uninit_secondary(txq_ctrl); + } } /** @@ -340,13 +669,15 @@ mlx5_tx_uar_init_secondary(struct rte_eth_dev *dev, int fd) unsigned int i; int ret; - assert(rte_eal_process_type() == RTE_PROC_SECONDARY); + MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_SECONDARY); for (i = 0; i != priv->txqs_n; ++i) { if (!(*priv->txqs)[i]) continue; txq = (*priv->txqs)[i]; txq_ctrl = container_of(txq, struct mlx5_txq_ctrl, txq); - assert(txq->idx == (uint16_t)i); + if (txq_ctrl->type != MLX5_TXQ_TYPE_STANDARD) + continue; + MLX5_ASSERT(txq->idx == (uint16_t)i); ret = txq_uar_init_secondary(txq_ctrl, fd); if (ret) goto error; @@ -364,294 +695,6 @@ error: return -rte_errno; } -/** - * Create the Tx queue Verbs object. - * - * @param dev - * Pointer to Ethernet device. - * @param idx - * Queue index in DPDK Tx queue array. - * - * @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) -{ - 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; - -#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 - 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.orig_attr.max_qp_wr < - desc) ? - priv->sh->device_attr.orig_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->ibv_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 = rte_calloc_socket(__func__, 1, 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 = 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; -#ifndef NDEBUG - txq_data->cq_pi = 0; -#endif - 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; -#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_obj) - rte_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) -{ - assert(txq_obj); - if (rte_atomic32_dec_and_test(&txq_obj->refcnt)) { - claim_zero(mlx5_glue->destroy_qp(txq_obj->qp)); - claim_zero(mlx5_glue->destroy_cq(txq_obj->cq)); - LIST_REMOVE(txq_obj, next); - rte_free(txq_obj); - return 0; - } - return 1; -} - /** * Verify the Verbs Tx queue list is empty * @@ -717,7 +760,7 @@ txq_calc_inline_max(struct mlx5_txq_ctrl *txq_ctrl) struct mlx5_priv *priv = txq_ctrl->priv; unsigned int wqe_size; - wqe_size = priv->sh->device_attr.orig_attr.max_qp_wr / desc; + wqe_size = priv->sh->device_attr.max_qp_wr / desc; if (!wqe_size) return 0; /* @@ -775,13 +818,13 @@ txq_set_params(struct mlx5_txq_ctrl *txq_ctrl) (unsigned int)config->txq_inline_mpw; inlen_mode = (config->txq_inline_min == MLX5_ARG_UNSET) ? 0 : (unsigned int)config->txq_inline_min; - if (config->mps != MLX5_MPW_ENHANCED) + if (config->mps != MLX5_MPW_ENHANCED && config->mps != MLX5_MPW) inlen_empw = 0; /* * If there is requested minimal amount of data to inline * we MUST enable inlining. This is a case for ConnectX-4 * which usually requires L2 inlined for correct operating - * and ConnectX-4LX which requires L2-L4 inlined to + * and ConnectX-4 Lx which requires L2-L4 inlined to * support E-Switch Flows. */ if (inlen_mode) { @@ -852,12 +895,12 @@ txq_set_params(struct mlx5_txq_ctrl *txq_ctrl) * beginning of inlining buffer in Ethernet * Segment. */ - assert(inlen_send >= MLX5_ESEG_MIN_INLINE_SIZE); - assert(inlen_send <= MLX5_WQE_SIZE_MAX + - MLX5_ESEG_MIN_INLINE_SIZE - - MLX5_WQE_CSEG_SIZE - - MLX5_WQE_ESEG_SIZE - - MLX5_WQE_DSEG_SIZE * 2); + MLX5_ASSERT(inlen_send >= MLX5_ESEG_MIN_INLINE_SIZE); + MLX5_ASSERT(inlen_send <= MLX5_WQE_SIZE_MAX + + MLX5_ESEG_MIN_INLINE_SIZE - + MLX5_WQE_CSEG_SIZE - + MLX5_WQE_ESEG_SIZE - + MLX5_WQE_DSEG_SIZE * 2); } else if (inlen_mode) { /* * If minimal inlining is requested we must @@ -907,12 +950,12 @@ txq_set_params(struct mlx5_txq_ctrl *txq_ctrl) PORT_ID(priv), inlen_empw, temp); inlen_empw = temp; } - assert(inlen_empw >= MLX5_ESEG_MIN_INLINE_SIZE); - assert(inlen_empw <= MLX5_WQE_SIZE_MAX + - MLX5_DSEG_MIN_INLINE_SIZE - - MLX5_WQE_CSEG_SIZE - - MLX5_WQE_ESEG_SIZE - - MLX5_WQE_DSEG_SIZE); + MLX5_ASSERT(inlen_empw >= MLX5_ESEG_MIN_INLINE_SIZE); + MLX5_ASSERT(inlen_empw <= MLX5_WQE_SIZE_MAX + + MLX5_DSEG_MIN_INLINE_SIZE - + MLX5_WQE_CSEG_SIZE - + MLX5_WQE_ESEG_SIZE - + MLX5_WQE_DSEG_SIZE); txq_ctrl->txq.inlen_empw = inlen_empw; } txq_ctrl->max_inline_data = RTE_MAX(inlen_send, inlen_empw); @@ -972,7 +1015,7 @@ txq_adjust_params(struct mlx5_txq_ctrl *txq_ctrl) " Tx queue size (%d)", txq_ctrl->txq.inlen_mode, max_inline, priv->dev_data->port_id, - priv->sh->device_attr.orig_attr.max_qp_wr); + priv->sh->device_attr.max_qp_wr); goto error; } if (txq_ctrl->txq.inlen_send > max_inline && @@ -984,7 +1027,7 @@ txq_adjust_params(struct mlx5_txq_ctrl *txq_ctrl) " Tx queue size (%d)", txq_ctrl->txq.inlen_send, max_inline, priv->dev_data->port_id, - priv->sh->device_attr.orig_attr.max_qp_wr); + priv->sh->device_attr.max_qp_wr); goto error; } if (txq_ctrl->txq.inlen_empw > max_inline && @@ -996,7 +1039,7 @@ txq_adjust_params(struct mlx5_txq_ctrl *txq_ctrl) " Tx queue size (%d)", txq_ctrl->txq.inlen_empw, max_inline, priv->dev_data->port_id, - priv->sh->device_attr.orig_attr.max_qp_wr); + priv->sh->device_attr.max_qp_wr); goto error; } if (txq_ctrl->txq.tso_en && max_inline < MLX5_MAX_TSO_HEADER) { @@ -1006,7 +1049,7 @@ txq_adjust_params(struct mlx5_txq_ctrl *txq_ctrl) " Tx queue size (%d)", MLX5_MAX_TSO_HEADER, max_inline, priv->dev_data->port_id, - priv->sh->device_attr.orig_attr.max_qp_wr); + priv->sh->device_attr.max_qp_wr); goto error; } if (txq_ctrl->txq.inlen_send > max_inline) { @@ -1027,10 +1070,11 @@ txq_adjust_params(struct mlx5_txq_ctrl *txq_ctrl) } txq_ctrl->max_inline_data = RTE_MAX(txq_ctrl->txq.inlen_send, txq_ctrl->txq.inlen_empw); - assert(txq_ctrl->max_inline_data <= max_inline); - assert(txq_ctrl->txq.inlen_mode <= max_inline); - assert(txq_ctrl->txq.inlen_mode <= txq_ctrl->txq.inlen_send); - assert(txq_ctrl->txq.inlen_mode <= txq_ctrl->txq.inlen_empw); + MLX5_ASSERT(txq_ctrl->max_inline_data <= max_inline); + MLX5_ASSERT(txq_ctrl->txq.inlen_mode <= max_inline); + MLX5_ASSERT(txq_ctrl->txq.inlen_mode <= txq_ctrl->txq.inlen_send); + MLX5_ASSERT(txq_ctrl->txq.inlen_mode <= txq_ctrl->txq.inlen_empw || + !txq_ctrl->txq.inlen_empw); return 0; error: rte_errno = ENOMEM; @@ -1061,10 +1105,8 @@ mlx5_txq_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_txq_ctrl *tmpl; - tmpl = rte_calloc_socket("TXQ", 1, - sizeof(*tmpl) + - desc * sizeof(struct rte_mbuf *), - 0, socket); + tmpl = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, sizeof(*tmpl) + + desc * sizeof(struct rte_mbuf *), 0, socket); if (!tmpl) { rte_errno = ENOMEM; return NULL; @@ -1075,8 +1117,8 @@ mlx5_txq_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, goto error; } /* Save pointer of global generation number to check memory event. */ - tmpl->txq.mr_ctrl.dev_gen_ptr = &priv->sh->mr.dev_gen; - assert(desc > MLX5_TX_COMP_THRESH); + tmpl->txq.mr_ctrl.dev_gen_ptr = &priv->sh->share_cache.dev_gen; + MLX5_ASSERT(desc > MLX5_TX_COMP_THRESH); tmpl->txq.offloads = conf->offloads | dev->data->dev_conf.txmode.offloads; tmpl->priv = priv; @@ -1090,23 +1132,64 @@ mlx5_txq_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, if (txq_adjust_params(tmpl)) goto error; if (txq_calc_wqebb_cnt(tmpl) > - priv->sh->device_attr.orig_attr.max_qp_wr) { + priv->sh->device_attr.max_qp_wr) { DRV_LOG(ERR, "port %u Tx WQEBB count (%d) exceeds the limit (%d)," " try smaller queue size", dev->data->port_id, txq_calc_wqebb_cnt(tmpl), - priv->sh->device_attr.orig_attr.max_qp_wr); + priv->sh->device_attr.max_qp_wr); 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; error: - rte_free(tmpl); + mlx5_free(tmpl); return NULL; } +/** + * Create a DPDK Tx hairpin queue. + * + * @param dev + * Pointer to Ethernet device. + * @param idx + * TX queue index. + * @param desc + * Number of descriptors to configure in queue. + * @param hairpin_conf + * The hairpin configuration. + * + * @return + * A DPDK queue object on success, NULL otherwise and rte_errno is set. + */ +struct mlx5_txq_ctrl * +mlx5_txq_hairpin_new(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, + const struct rte_eth_hairpin_conf *hairpin_conf) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_txq_ctrl *tmpl; + + tmpl = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, sizeof(*tmpl), 0, + SOCKET_ID_ANY); + if (!tmpl) { + rte_errno = ENOMEM; + return NULL; + } + tmpl->priv = priv; + tmpl->socket = SOCKET_ID_ANY; + tmpl->txq.elts_n = log2above(desc); + tmpl->txq.port_id = dev->data->port_id; + tmpl->txq.idx = idx; + tmpl->hairpin_conf = *hairpin_conf; + tmpl->type = MLX5_TXQ_TYPE_HAIRPIN; + __atomic_fetch_add(&tmpl->refcnt, 1, __ATOMIC_RELAXED); + LIST_INSERT_HEAD(&priv->txqsctrl, tmpl, next); + return tmpl; +} + /** * Get a Tx queue. * @@ -1122,13 +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; } @@ -1148,22 +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); - rte_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; - return 0; } - return 1; + return 0; } /** @@ -1186,7 +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); } /** @@ -1212,3 +1307,35 @@ mlx5_txq_verify(struct rte_eth_dev *dev) } return ret; } + +/** + * Set the Tx queue dynamic timestamp (mask and offset) + * + * @param[in] dev + * Pointer to the Ethernet device structure. + */ +void +mlx5_txq_dynf_timestamp_set(struct rte_eth_dev *dev) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_dev_ctx_shared *sh = priv->sh; + struct mlx5_txq_data *data; + int off, nbit; + unsigned int i; + uint64_t mask = 0; + + nbit = rte_mbuf_dynflag_lookup + (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) + mask = 1ULL << nbit; + for (i = 0; i != priv->txqs_n; ++i) { + data = (*priv->txqs)[i]; + if (!data) + continue; + data->sh = sh; + data->ts_mask = mask; + data->ts_offset = off; + } +}