diff options
Diffstat (limited to 'drivers/net/avf/avf_rxtx.c')
| -rw-r--r-- | drivers/net/avf/avf_rxtx.c | 1959 |
1 files changed, 1959 insertions, 0 deletions
diff --git a/drivers/net/avf/avf_rxtx.c b/drivers/net/avf/avf_rxtx.c new file mode 100644 index 00000000..d276d975 --- /dev/null +++ b/drivers/net/avf/avf_rxtx.c @@ -0,0 +1,1959 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2017 Intel Corporation + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <stdint.h> +#include <stdarg.h> +#include <unistd.h> +#include <inttypes.h> +#include <sys/queue.h> + +#include <rte_string_fns.h> +#include <rte_memzone.h> +#include <rte_mbuf.h> +#include <rte_malloc.h> +#include <rte_ether.h> +#include <rte_ethdev_driver.h> +#include <rte_tcp.h> +#include <rte_sctp.h> +#include <rte_udp.h> +#include <rte_ip.h> +#include <rte_net.h> + +#include "avf_log.h" +#include "base/avf_prototype.h" +#include "base/avf_type.h" +#include "avf.h" +#include "avf_rxtx.h" + +static inline int +check_rx_thresh(uint16_t nb_desc, uint16_t thresh) +{ + /* The following constraints must be satisfied: + * thresh < rxq->nb_rx_desc + */ + if (thresh >= nb_desc) { + PMD_INIT_LOG(ERR, "rx_free_thresh (%u) must be less than %u", + thresh, nb_desc); + return -EINVAL; + } + return 0; +} + +static inline int +check_tx_thresh(uint16_t nb_desc, uint16_t tx_rs_thresh, + uint16_t tx_free_thresh) +{ + /* TX descriptors will have their RS bit set after tx_rs_thresh + * descriptors have been used. The TX descriptor ring will be cleaned + * after tx_free_thresh descriptors are used or if the number of + * descriptors required to transmit a packet is greater than the + * number of free TX descriptors. + * + * The following constraints must be satisfied: + * - tx_rs_thresh must be less than the size of the ring minus 2. + * - tx_free_thresh must be less than the size of the ring minus 3. + * - tx_rs_thresh must be less than or equal to tx_free_thresh. + * - tx_rs_thresh must be a divisor of the ring size. + * + * One descriptor in the TX ring is used as a sentinel to avoid a H/W + * race condition, hence the maximum threshold constraints. When set + * to zero use default values. + */ + if (tx_rs_thresh >= (nb_desc - 2)) { + PMD_INIT_LOG(ERR, "tx_rs_thresh (%u) must be less than the " + "number of TX descriptors (%u) minus 2", + tx_rs_thresh, nb_desc); + return -EINVAL; + } + if (tx_free_thresh >= (nb_desc - 3)) { + PMD_INIT_LOG(ERR, "tx_free_thresh (%u) must be less than the " + "number of TX descriptors (%u) minus 3.", + tx_free_thresh, nb_desc); + return -EINVAL; + } + if (tx_rs_thresh > tx_free_thresh) { + PMD_INIT_LOG(ERR, "tx_rs_thresh (%u) must be less than or " + "equal to tx_free_thresh (%u).", + tx_rs_thresh, tx_free_thresh); + return -EINVAL; + } + if ((nb_desc % tx_rs_thresh) != 0) { + PMD_INIT_LOG(ERR, "tx_rs_thresh (%u) must be a divisor of the " + "number of TX descriptors (%u).", + tx_rs_thresh, nb_desc); + return -EINVAL; + } + + return 0; +} + +#ifdef RTE_LIBRTE_AVF_INC_VECTOR +static inline bool +check_rx_vec_allow(struct avf_rx_queue *rxq) +{ + if (rxq->rx_free_thresh >= AVF_VPMD_RX_MAX_BURST && + rxq->nb_rx_desc % rxq->rx_free_thresh == 0) { + PMD_INIT_LOG(DEBUG, "Vector Rx can be enabled on this rxq."); + return TRUE; + } + + PMD_INIT_LOG(DEBUG, "Vector Rx cannot be enabled on this rxq."); + return FALSE; +} + +static inline bool +check_tx_vec_allow(struct avf_tx_queue *txq) +{ + if ((txq->txq_flags & AVF_SIMPLE_FLAGS) == AVF_SIMPLE_FLAGS && + txq->rs_thresh >= AVF_VPMD_TX_MAX_BURST && + txq->rs_thresh <= AVF_VPMD_TX_MAX_FREE_BUF) { + PMD_INIT_LOG(DEBUG, "Vector tx can be enabled on this txq."); + return TRUE; + } + PMD_INIT_LOG(DEBUG, "Vector Tx cannot be enabled on this txq."); + return FALSE; +} +#endif + +static inline bool +check_rx_bulk_allow(struct avf_rx_queue *rxq) +{ + int ret = TRUE; + + if (!(rxq->rx_free_thresh >= AVF_RX_MAX_BURST)) { + PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: " + "rxq->rx_free_thresh=%d, " + "AVF_RX_MAX_BURST=%d", + rxq->rx_free_thresh, AVF_RX_MAX_BURST); + ret = FALSE; + } else if (rxq->nb_rx_desc % rxq->rx_free_thresh != 0) { + PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: " + "rxq->nb_rx_desc=%d, " + "rxq->rx_free_thresh=%d", + rxq->nb_rx_desc, rxq->rx_free_thresh); + ret = FALSE; + } + return ret; +} + +static inline void +reset_rx_queue(struct avf_rx_queue *rxq) +{ + uint16_t len, i; + + if (!rxq) + return; + + len = rxq->nb_rx_desc + AVF_RX_MAX_BURST; + + for (i = 0; i < len * sizeof(union avf_rx_desc); i++) + ((volatile char *)rxq->rx_ring)[i] = 0; + + memset(&rxq->fake_mbuf, 0x0, sizeof(rxq->fake_mbuf)); + + for (i = 0; i < AVF_RX_MAX_BURST; i++) + rxq->sw_ring[rxq->nb_rx_desc + i] = &rxq->fake_mbuf; + + /* for rx bulk */ + rxq->rx_nb_avail = 0; + rxq->rx_next_avail = 0; + rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1); + + rxq->rx_tail = 0; + rxq->nb_rx_hold = 0; + rxq->pkt_first_seg = NULL; + rxq->pkt_last_seg = NULL; +} + +static inline void +reset_tx_queue(struct avf_tx_queue *txq) +{ + struct avf_tx_entry *txe; + uint16_t i, prev, size; + + if (!txq) { + PMD_DRV_LOG(DEBUG, "Pointer to txq is NULL"); + return; + } + + txe = txq->sw_ring; + size = sizeof(struct avf_tx_desc) * txq->nb_tx_desc; + for (i = 0; i < size; i++) + ((volatile char *)txq->tx_ring)[i] = 0; + + prev = (uint16_t)(txq->nb_tx_desc - 1); + for (i = 0; i < txq->nb_tx_desc; i++) { + txq->tx_ring[i].cmd_type_offset_bsz = + rte_cpu_to_le_64(AVF_TX_DESC_DTYPE_DESC_DONE); + txe[i].mbuf = NULL; + txe[i].last_id = i; + txe[prev].next_id = i; + prev = i; + } + + txq->tx_tail = 0; + txq->nb_used = 0; + + txq->last_desc_cleaned = txq->nb_tx_desc - 1; + txq->nb_free = txq->nb_tx_desc - 1; + + txq->next_dd = txq->rs_thresh - 1; + txq->next_rs = txq->rs_thresh - 1; +} + +static int +alloc_rxq_mbufs(struct avf_rx_queue *rxq) +{ + volatile union avf_rx_desc *rxd; + struct rte_mbuf *mbuf = NULL; + uint64_t dma_addr; + uint16_t i; + + for (i = 0; i < rxq->nb_rx_desc; i++) { + mbuf = rte_mbuf_raw_alloc(rxq->mp); + if (unlikely(!mbuf)) { + PMD_DRV_LOG(ERR, "Failed to allocate mbuf for RX"); + return -ENOMEM; + } + + rte_mbuf_refcnt_set(mbuf, 1); + mbuf->next = NULL; + mbuf->data_off = RTE_PKTMBUF_HEADROOM; + mbuf->nb_segs = 1; + mbuf->port = rxq->port_id; + + dma_addr = + rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf)); + + rxd = &rxq->rx_ring[i]; + rxd->read.pkt_addr = dma_addr; + rxd->read.hdr_addr = 0; +#ifndef RTE_LIBRTE_AVF_16BYTE_RX_DESC + rxd->read.rsvd1 = 0; + rxd->read.rsvd2 = 0; +#endif + + rxq->sw_ring[i] = mbuf; + } + + return 0; +} + +static inline void +release_rxq_mbufs(struct avf_rx_queue *rxq) +{ + struct rte_mbuf *mbuf; + uint16_t i; + + if (!rxq->sw_ring) + return; + + for (i = 0; i < rxq->nb_rx_desc; i++) { + if (rxq->sw_ring[i]) { + rte_pktmbuf_free_seg(rxq->sw_ring[i]); + rxq->sw_ring[i] = NULL; + } + } + + /* for rx bulk */ + if (rxq->rx_nb_avail == 0) + return; + for (i = 0; i < rxq->rx_nb_avail; i++) { + struct rte_mbuf *mbuf; + + mbuf = rxq->rx_stage[rxq->rx_next_avail + i]; + rte_pktmbuf_free_seg(mbuf); + } + rxq->rx_nb_avail = 0; +} + +static inline void +release_txq_mbufs(struct avf_tx_queue *txq) +{ + uint16_t i; + + if (!txq || !txq->sw_ring) { + PMD_DRV_LOG(DEBUG, "Pointer to rxq or sw_ring is NULL"); + return; + } + + for (i = 0; i < txq->nb_tx_desc; i++) { + if (txq->sw_ring[i].mbuf) { + rte_pktmbuf_free_seg(txq->sw_ring[i].mbuf); + txq->sw_ring[i].mbuf = NULL; + } + } +} + +static const struct avf_rxq_ops def_rxq_ops = { + .release_mbufs = release_rxq_mbufs, +}; + +static const struct avf_txq_ops def_txq_ops = { + .release_mbufs = release_txq_mbufs, +}; + +int +avf_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx, + uint16_t nb_desc, unsigned int socket_id, + const struct rte_eth_rxconf *rx_conf, + struct rte_mempool *mp) +{ + struct avf_hw *hw = AVF_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct avf_adapter *ad = + AVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); + struct avf_rx_queue *rxq; + const struct rte_memzone *mz; + uint32_t ring_size; + uint16_t len, i; + uint16_t rx_free_thresh; + uint16_t base, bsf, tc_mapping; + + PMD_INIT_FUNC_TRACE(); + + if (nb_desc % AVF_ALIGN_RING_DESC != 0 || + nb_desc > AVF_MAX_RING_DESC || + nb_desc < AVF_MIN_RING_DESC) { + PMD_INIT_LOG(ERR, "Number (%u) of receive descriptors is " + "invalid", nb_desc); + return -EINVAL; + } + + /* Check free threshold */ + rx_free_thresh = (rx_conf->rx_free_thresh == 0) ? + AVF_DEFAULT_RX_FREE_THRESH : + rx_conf->rx_free_thresh; + if (check_rx_thresh(nb_desc, rx_free_thresh) != 0) + return -EINVAL; + + /* Free memory if needed */ + if (dev->data->rx_queues[queue_idx]) { + avf_dev_rx_queue_release(dev->data->rx_queues[queue_idx]); + dev->data->rx_queues[queue_idx] = NULL; + } + + /* Allocate the rx queue data structure */ + rxq = rte_zmalloc_socket("avf rxq", + sizeof(struct avf_rx_queue), + RTE_CACHE_LINE_SIZE, + socket_id); + if (!rxq) { + PMD_INIT_LOG(ERR, "Failed to allocate memory for " + "rx queue data structure"); + return -ENOMEM; + } + + rxq->mp = mp; + rxq->nb_rx_desc = nb_desc; + rxq->rx_free_thresh = rx_free_thresh; + rxq->queue_id = queue_idx; + rxq->port_id = dev->data->port_id; + rxq->crc_len = 0; /* crc stripping by default */ + rxq->rx_deferred_start = rx_conf->rx_deferred_start; + rxq->rx_hdr_len = 0; + + len = rte_pktmbuf_data_room_size(rxq->mp) - RTE_PKTMBUF_HEADROOM; + rxq->rx_buf_len = RTE_ALIGN(len, (1 << AVF_RXQ_CTX_DBUFF_SHIFT)); + + /* Allocate the software ring. */ + len = nb_desc + AVF_RX_MAX_BURST; + rxq->sw_ring = + rte_zmalloc_socket("avf rx sw ring", + sizeof(struct rte_mbuf *) * len, + RTE_CACHE_LINE_SIZE, + socket_id); + if (!rxq->sw_ring) { + PMD_INIT_LOG(ERR, "Failed to allocate memory for SW ring"); + rte_free(rxq); + return -ENOMEM; + } + + /* Allocate the maximun number of RX ring hardware descriptor with + * a liitle more to support bulk allocate. + */ + len = AVF_MAX_RING_DESC + AVF_RX_MAX_BURST; + ring_size = RTE_ALIGN(len * sizeof(union avf_rx_desc), + AVF_DMA_MEM_ALIGN); + mz = rte_eth_dma_zone_reserve(dev, "rx_ring", queue_idx, + ring_size, AVF_RING_BASE_ALIGN, + socket_id); + if (!mz) { + PMD_INIT_LOG(ERR, "Failed to reserve DMA memory for RX"); + rte_free(rxq->sw_ring); + rte_free(rxq); + return -ENOMEM; + } + /* Zero all the descriptors in the ring. */ + memset(mz->addr, 0, ring_size); + rxq->rx_ring_phys_addr = mz->iova; + rxq->rx_ring = (union avf_rx_desc *)mz->addr; + + rxq->mz = mz; + reset_rx_queue(rxq); + rxq->q_set = TRUE; + dev->data->rx_queues[queue_idx] = rxq; + rxq->qrx_tail = hw->hw_addr + AVF_QRX_TAIL1(rxq->queue_id); + rxq->ops = &def_rxq_ops; + + if (check_rx_bulk_allow(rxq) == TRUE) { + PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are " + "satisfied. Rx Burst Bulk Alloc function will be " + "used on port=%d, queue=%d.", + rxq->port_id, rxq->queue_id); + } else { + PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are " + "not satisfied, Scattered Rx is requested " + "on port=%d, queue=%d.", + rxq->port_id, rxq->queue_id); + ad->rx_bulk_alloc_allowed = false; + } + +#ifdef RTE_LIBRTE_AVF_INC_VECTOR + if (check_rx_vec_allow(rxq) == FALSE) + ad->rx_vec_allowed = false; +#endif + return 0; +} + +int +avf_dev_tx_queue_setup(struct rte_eth_dev *dev, + uint16_t queue_idx, + uint16_t nb_desc, + unsigned int socket_id, + const struct rte_eth_txconf *tx_conf) +{ + struct avf_hw *hw = AVF_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct avf_adapter *ad = + AVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); + struct avf_tx_queue *txq; + const struct rte_memzone *mz; + uint32_t ring_size; + uint16_t tx_rs_thresh, tx_free_thresh; + uint16_t i, base, bsf, tc_mapping; + + PMD_INIT_FUNC_TRACE(); + + if (nb_desc % AVF_ALIGN_RING_DESC != 0 || + nb_desc > AVF_MAX_RING_DESC || + nb_desc < AVF_MIN_RING_DESC) { + PMD_INIT_LOG(ERR, "Number (%u) of transmit descriptors is " + "invalid", nb_desc); + return -EINVAL; + } + + tx_rs_thresh = (uint16_t)((tx_conf->tx_rs_thresh) ? + tx_conf->tx_rs_thresh : DEFAULT_TX_RS_THRESH); + tx_free_thresh = (uint16_t)((tx_conf->tx_free_thresh) ? + tx_conf->tx_free_thresh : DEFAULT_TX_FREE_THRESH); + check_tx_thresh(nb_desc, tx_rs_thresh, tx_rs_thresh); + + /* Free memory if needed. */ + if (dev->data->tx_queues[queue_idx]) { + avf_dev_tx_queue_release(dev->data->tx_queues[queue_idx]); + dev->data->tx_queues[queue_idx] = NULL; + } + + /* Allocate the TX queue data structure. */ + txq = rte_zmalloc_socket("avf txq", + sizeof(struct avf_tx_queue), + RTE_CACHE_LINE_SIZE, + socket_id); + if (!txq) { + PMD_INIT_LOG(ERR, "Failed to allocate memory for " + "tx queue structure"); + return -ENOMEM; + } + + txq->nb_tx_desc = nb_desc; + txq->rs_thresh = tx_rs_thresh; + txq->free_thresh = tx_free_thresh; + txq->queue_id = queue_idx; + txq->port_id = dev->data->port_id; + txq->txq_flags = tx_conf->txq_flags; + txq->tx_deferred_start = tx_conf->tx_deferred_start; + + /* Allocate software ring */ + txq->sw_ring = + rte_zmalloc_socket("avf tx sw ring", + sizeof(struct avf_tx_entry) * nb_desc, + RTE_CACHE_LINE_SIZE, + socket_id); + if (!txq->sw_ring) { + PMD_INIT_LOG(ERR, "Failed to allocate memory for SW TX ring"); + rte_free(txq); + return -ENOMEM; + } + + /* Allocate TX hardware ring descriptors. */ + ring_size = sizeof(struct avf_tx_desc) * AVF_MAX_RING_DESC; + ring_size = RTE_ALIGN(ring_size, AVF_DMA_MEM_ALIGN); + mz = rte_eth_dma_zone_reserve(dev, "tx_ring", queue_idx, + ring_size, AVF_RING_BASE_ALIGN, + socket_id); + if (!mz) { + PMD_INIT_LOG(ERR, "Failed to reserve DMA memory for TX"); + rte_free(txq->sw_ring); + rte_free(txq); + return -ENOMEM; + } + txq->tx_ring_phys_addr = mz->iova; + txq->tx_ring = (struct avf_tx_desc *)mz->addr; + + txq->mz = mz; + reset_tx_queue(txq); + txq->q_set = TRUE; + dev->data->tx_queues[queue_idx] = txq; + txq->qtx_tail = hw->hw_addr + AVF_QTX_TAIL1(queue_idx); + txq->ops = &def_txq_ops; + +#ifdef RTE_LIBRTE_AVF_INC_VECTOR + if (check_tx_vec_allow(txq) == FALSE) + ad->tx_vec_allowed = false; +#endif + + return 0; +} + +int +avf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id) +{ + struct avf_adapter *adapter = + AVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); + struct avf_hw *hw = AVF_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct avf_rx_queue *rxq; + int err = 0; + + PMD_DRV_FUNC_TRACE(); + + if (rx_queue_id >= dev->data->nb_rx_queues) + return -EINVAL; + + rxq = dev->data->rx_queues[rx_queue_id]; + + err = alloc_rxq_mbufs(rxq); + if (err) { + PMD_DRV_LOG(ERR, "Failed to allocate RX queue mbuf"); + return err; + } + + rte_wmb(); + + /* Init the RX tail register. */ + AVF_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1); + AVF_WRITE_FLUSH(hw); + + /* Ready to switch the queue on */ + err = avf_switch_queue(adapter, rx_queue_id, TRUE, TRUE); + if (err) + PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on", + rx_queue_id); + else + dev->data->rx_queue_state[rx_queue_id] = + RTE_ETH_QUEUE_STATE_STARTED; + + return err; +} + +int +avf_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id) +{ + struct avf_adapter *adapter = + AVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); + struct avf_hw *hw = AVF_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct avf_tx_queue *txq; + int err = 0; + + PMD_DRV_FUNC_TRACE(); + + if (tx_queue_id >= dev->data->nb_tx_queues) + return -EINVAL; + + txq = dev->data->tx_queues[tx_queue_id]; + + /* Init the RX tail register. */ + AVF_PCI_REG_WRITE(txq->qtx_tail, 0); + AVF_WRITE_FLUSH(hw); + + /* Ready to switch the queue on */ + err = avf_switch_queue(adapter, tx_queue_id, FALSE, TRUE); + + if (err) + PMD_DRV_LOG(ERR, "Failed to switch TX queue %u on", + tx_queue_id); + else + dev->data->tx_queue_state[tx_queue_id] = + RTE_ETH_QUEUE_STATE_STARTED; + + return err; +} + +int +avf_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id) +{ + struct avf_adapter *adapter = + AVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); + struct avf_rx_queue *rxq; + int err; + + PMD_DRV_FUNC_TRACE(); + + if (rx_queue_id >= dev->data->nb_rx_queues) + return -EINVAL; + + err = avf_switch_queue(adapter, rx_queue_id, TRUE, FALSE); + if (err) { + PMD_DRV_LOG(ERR, "Failed to switch RX queue %u off", + rx_queue_id); + return err; + } + + rxq = dev->data->rx_queues[rx_queue_id]; + rxq->ops->release_mbufs(rxq); + reset_rx_queue(rxq); + dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED; + + return 0; +} + +int +avf_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) +{ + struct avf_adapter *adapter = + AVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); + struct avf_tx_queue *txq; + int err; + + PMD_DRV_FUNC_TRACE(); + + if (tx_queue_id >= dev->data->nb_tx_queues) + return -EINVAL; + + err = avf_switch_queue(adapter, tx_queue_id, FALSE, FALSE); + if (err) { + PMD_DRV_LOG(ERR, "Failed to switch TX queue %u off", + tx_queue_id); + return err; + } + + txq = dev->data->tx_queues[tx_queue_id]; + txq->ops->release_mbufs(txq); + reset_tx_queue(txq); + dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED; + + return 0; +} + +void +avf_dev_rx_queue_release(void *rxq) +{ + struct avf_rx_queue *q = (struct avf_rx_queue *)rxq; + + if (!q) + return; + + q->ops->release_mbufs(q); + rte_free(q->sw_ring); + rte_memzone_free(q->mz); + rte_free(q); +} + +void +avf_dev_tx_queue_release(void *txq) +{ + struct avf_tx_queue *q = (struct avf_tx_queue *)txq; + + if (!q) + return; + + q->ops->release_mbufs(q); + rte_free(q->sw_ring); + rte_memzone_free(q->mz); + rte_free(q); +} + +void +avf_stop_queues(struct rte_eth_dev *dev) +{ + struct avf_adapter *adapter = + AVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); + struct avf_rx_queue *rxq; + struct avf_tx_queue *txq; + int ret, i; + + /* Stop All queues */ + ret = avf_disable_queues(adapter); + if (ret) + PMD_DRV_LOG(WARNING, "Fail to stop queues"); + + for (i = 0; i < dev->data->nb_tx_queues; i++) { + txq = dev->data->tx_queues[i]; + if (!txq) + continue; + txq->ops->release_mbufs(txq); + reset_tx_queue(txq); + dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED; + } + for (i = 0; i < dev->data->nb_rx_queues; i++) { + rxq = dev->data->rx_queues[i]; + if (!rxq) + continue; + rxq->ops->release_mbufs(rxq); + reset_rx_queue(rxq); + dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED; + } +} + +static inline void +avf_rxd_to_vlan_tci(struct rte_mbuf *mb, volatile union avf_rx_desc *rxdp) +{ + if (rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len) & + (1 << AVF_RX_DESC_STATUS_L2TAG1P_SHIFT)) { + mb->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED; + mb->vlan_tci = + rte_le_to_cpu_16(rxdp->wb.qword0.lo_dword.l2tag1); + } else { + mb->vlan_tci = 0; + } +} + +/* Translate the rx descriptor status and error fields to pkt flags */ +static inline uint64_t +avf_rxd_to_pkt_flags(uint64_t qword) +{ + uint64_t flags; + uint64_t error_bits = (qword >> AVF_RXD_QW1_ERROR_SHIFT); + +#define AVF_RX_ERR_BITS 0x3f + + /* Check if RSS_HASH */ + flags = (((qword >> AVF_RX_DESC_STATUS_FLTSTAT_SHIFT) & + AVF_RX_DESC_FLTSTAT_RSS_HASH) == + AVF_RX_DESC_FLTSTAT_RSS_HASH) ? PKT_RX_RSS_HASH : 0; + + if (likely((error_bits & AVF_RX_ERR_BITS) == 0)) { + flags |= (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD); + return flags; + } + + if (unlikely(error_bits & (1 << AVF_RX_DESC_ERROR_IPE_SHIFT))) + flags |= PKT_RX_IP_CKSUM_BAD; + else + flags |= PKT_RX_IP_CKSUM_GOOD; + + if (unlikely(error_bits & (1 << AVF_RX_DESC_ERROR_L4E_SHIFT))) + flags |= PKT_RX_L4_CKSUM_BAD; + else + flags |= PKT_RX_L4_CKSUM_GOOD; + + /* TODO: Oversize error bit is not processed here */ + + return flags; +} + +/* implement recv_pkts */ +uint16_t +avf_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts) +{ + volatile union avf_rx_desc *rx_ring; + volatile union avf_rx_desc *rxdp; + struct avf_rx_queue *rxq; + union avf_rx_desc rxd; + struct rte_mbuf *rxe; + struct rte_eth_dev *dev; + struct rte_mbuf *rxm; + struct rte_mbuf *nmb; + uint16_t nb_rx; + uint32_t rx_status; + uint64_t qword1; + uint16_t rx_packet_len; + uint16_t rx_id, nb_hold; + uint64_t dma_addr; + uint64_t pkt_flags; + static const uint32_t ptype_tbl[UINT8_MAX + 1] __rte_cache_aligned = { + /* [0] reserved */ + [1] = RTE_PTYPE_L2_ETHER, + /* [2] - [21] reserved */ + [22] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_FRAG, + [23] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_NONFRAG, + [24] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_UDP, + /* [25] reserved */ + [26] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_TCP, + [27] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_SCTP, + [28] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_ICMP, + /* All others reserved */ + }; + + nb_rx = 0; + nb_hold = 0; + rxq = rx_queue; + rx_id = rxq->rx_tail; + rx_ring = rxq->rx_ring; + + while (nb_rx < nb_pkts) { + rxdp = &rx_ring[rx_id]; + qword1 = rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len); + rx_status = (qword1 & AVF_RXD_QW1_STATUS_MASK) >> + AVF_RXD_QW1_STATUS_SHIFT; + + /* Check the DD bit first */ + if (!(rx_status & (1 << AVF_RX_DESC_STATUS_DD_SHIFT))) + break; + AVF_DUMP_RX_DESC(rxq, rxdp, rx_id); + + nmb = rte_mbuf_raw_alloc(rxq->mp); + if (unlikely(!nmb)) { + dev = &rte_eth_devices[rxq->port_id]; + dev->data->rx_mbuf_alloc_failed++; + PMD_RX_LOG(DEBUG, "RX mbuf alloc failed port_id=%u " + "queue_id=%u", rxq->port_id, rxq->queue_id); + break; + } + + rxd = *rxdp; + nb_hold++; + rxe = rxq->sw_ring[rx_id]; + rx_id++; + if (unlikely(rx_id == rxq->nb_rx_desc)) + rx_id = 0; + + /* Prefetch next mbuf */ + rte_prefetch0(rxq->sw_ring[rx_id]); + + /* When next RX descriptor is on a cache line boundary, + * prefetch the next 4 RX descriptors and next 8 pointers + * to mbufs. + */ + if ((rx_id & 0x3) == 0) { + rte_prefetch0(&rx_ring[rx_id]); + rte_prefetch0(rxq->sw_ring[rx_id]); + } + rxm = rxe; + rxe = nmb; + dma_addr = + rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb)); + rxdp->read.hdr_addr = 0; + rxdp->read.pkt_addr = dma_addr; + + rx_packet_len = ((qword1 & AVF_RXD_QW1_LENGTH_PBUF_MASK) >> + AVF_RXD_QW1_LENGTH_PBUF_SHIFT) - rxq->crc_len; + + rxm->data_off = RTE_PKTMBUF_HEADROOM; + rte_prefetch0(RTE_PTR_ADD(rxm->buf_addr, RTE_PKTMBUF_HEADROOM)); + rxm->nb_segs = 1; + rxm->next = NULL; + rxm->pkt_len = rx_packet_len; + rxm->data_len = rx_packet_len; + rxm->port = rxq->port_id; + rxm->ol_flags = 0; + avf_rxd_to_vlan_tci(rxm, &rxd); + pkt_flags = avf_rxd_to_pkt_flags(qword1); + rxm->packet_type = + ptype_tbl[(uint8_t)((qword1 & + AVF_RXD_QW1_PTYPE_MASK) >> AVF_RXD_QW1_PTYPE_SHIFT)]; + + if (pkt_flags & PKT_RX_RSS_HASH) + rxm->hash.rss = + rte_le_to_cpu_32(rxd.wb.qword0.hi_dword.rss); + + rxm->ol_flags |= pkt_flags; + + rx_pkts[nb_rx++] = rxm; + } + rxq->rx_tail = rx_id; + + /* If the number of free RX descriptors is greater than the RX free + * threshold of the queue, advance the receive tail register of queue. + * Update that register with the value of the last processed RX + * descriptor minus 1. + */ + nb_hold = (uint16_t)(nb_hold + rxq->nb_rx_hold); + if (nb_hold > rxq->rx_free_thresh) { + PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_tail=%u " + "nb_hold=%u nb_rx=%u", + rxq->port_id, rxq->queue_id, + rx_id, nb_hold, nb_rx); + rx_id = (uint16_t)((rx_id == 0) ? + (rxq->nb_rx_desc - 1) : (rx_id - 1)); + AVF_PCI_REG_WRITE(rxq->qrx_tail, rx_id); + nb_hold = 0; + } + rxq->nb_rx_hold = nb_hold; + + return nb_rx; +} + +/* implement recv_scattered_pkts */ +uint16_t +avf_recv_scattered_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, + uint16_t nb_pkts) +{ + struct avf_rx_queue *rxq = rx_queue; + union avf_rx_desc rxd; + struct rte_mbuf *rxe; + struct rte_mbuf *first_seg = rxq->pkt_first_seg; + struct rte_mbuf *last_seg = rxq->pkt_last_seg; + struct rte_mbuf *nmb, *rxm; + uint16_t rx_id = rxq->rx_tail; + uint16_t nb_rx = 0, nb_hold = 0, rx_packet_len; + struct rte_eth_dev *dev; + uint32_t rx_status; + uint64_t qword1; + uint64_t dma_addr; + uint64_t pkt_flags; + + volatile union avf_rx_desc *rx_ring = rxq->rx_ring; + volatile union avf_rx_desc *rxdp; + static const uint32_t ptype_tbl[UINT8_MAX + 1] __rte_cache_aligned = { + /* [0] reserved */ + [1] = RTE_PTYPE_L2_ETHER, + /* [2] - [21] reserved */ + [22] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_FRAG, + [23] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_NONFRAG, + [24] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_UDP, + /* [25] reserved */ + [26] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_TCP, + [27] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_SCTP, + [28] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_ICMP, + /* All others reserved */ + }; + + while (nb_rx < nb_pkts) { + rxdp = &rx_ring[rx_id]; + qword1 = rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len); + rx_status = (qword1 & AVF_RXD_QW1_STATUS_MASK) >> + AVF_RXD_QW1_STATUS_SHIFT; + + /* Check the DD bit */ + if (!(rx_status & (1 << AVF_RX_DESC_STATUS_DD_SHIFT))) + break; + AVF_DUMP_RX_DESC(rxq, rxdp, rx_id); + + nmb = rte_mbuf_raw_alloc(rxq->mp); + if (unlikely(!nmb)) { + PMD_RX_LOG(DEBUG, "RX mbuf alloc failed port_id=%u " + "queue_id=%u", rxq->port_id, rxq->queue_id); + dev = &rte_eth_devices[rxq->port_id]; + dev->data->rx_mbuf_alloc_failed++; + break; + } + + rxd = *rxdp; + nb_hold++; + rxe = rxq->sw_ring[rx_id]; + rx_id++; + if (rx_id == rxq->nb_rx_desc) + rx_id = 0; + + /* Prefetch next mbuf */ + rte_prefetch0(rxq->sw_ring[rx_id]); + + /* When next RX descriptor is on a cache line boundary, + * prefetch the next 4 RX descriptors and next 8 pointers + * to mbufs. + */ + if ((rx_id & 0x3) == 0) { + rte_prefetch0(&rx_ring[rx_id]); + rte_prefetch0(rxq->sw_ring[rx_id]); + } + + rxm = rxe; + rxe = nmb; + dma_addr = + rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb)); + + /* Set data buffer address and data length of the mbuf */ + rxdp->read.hdr_addr = 0; + rxdp->read.pkt_addr = dma_addr; + rx_packet_len = (qword1 & AVF_RXD_QW1_LENGTH_PBUF_MASK) >> + AVF_RXD_QW1_LENGTH_PBUF_SHIFT; + rxm->data_len = rx_packet_len; + rxm->data_off = RTE_PKTMBUF_HEADROOM; + + /* If this is the first buffer of the received packet, set the + * pointer to the first mbuf of the packet and initialize its + * context. Otherwise, update the total length and the number + * of segments of the current scattered packet, and update the + * pointer to the last mbuf of the current packet. + */ + if (!first_seg) { + first_seg = rxm; + first_seg->nb_segs = 1; + first_seg->pkt_len = rx_packet_len; + } else { + first_seg->pkt_len = + (uint16_t)(first_seg->pkt_len + + rx_packet_len); + first_seg->nb_segs++; + last_seg->next = rxm; + } + + /* If this is not the last buffer of the received packet, + * update the pointer to the last mbuf of the current scattered + * packet and continue to parse the RX ring. + */ + if (!(rx_status & (1 << AVF_RX_DESC_STATUS_EOF_SHIFT))) { + last_seg = rxm; + continue; + } + + /* This is the last buffer of the received packet. If the CRC + * is not stripped by the hardware: + * - Subtract the CRC length from the total packet length. + * - If the last buffer only contains the whole CRC or a part + * of it, free the mbuf associated to the last buffer. If part + * of the CRC is also contained in the previous mbuf, subtract + * the length of that CRC part from the data length of the + * previous mbuf. + */ + rxm->next = NULL; + if (unlikely(rxq->crc_len > 0)) { + first_seg->pkt_len -= ETHER_CRC_LEN; + if (rx_packet_len <= ETHER_CRC_LEN) { + rte_pktmbuf_free_seg(rxm); + first_seg->nb_segs--; + last_seg->data_len = + (uint16_t)(last_seg->data_len - + (ETHER_CRC_LEN - rx_packet_len)); + last_seg->next = NULL; + } else + rxm->data_len = (uint16_t)(rx_packet_len - + ETHER_CRC_LEN); + } + + first_seg->port = rxq->port_id; + first_seg->ol_flags = 0; + avf_rxd_to_vlan_tci(first_seg, &rxd); + pkt_flags = avf_rxd_to_pkt_flags(qword1); + first_seg->packet_type = + ptype_tbl[(uint8_t)((qword1 & + AVF_RXD_QW1_PTYPE_MASK) >> AVF_RXD_QW1_PTYPE_SHIFT)]; + + if (pkt_flags & PKT_RX_RSS_HASH) + first_seg->hash.rss = + rte_le_to_cpu_32(rxd.wb.qword0.hi_dword.rss); + + first_seg->ol_flags |= pkt_flags; + + /* Prefetch data of first segment, if configured to do so. */ + rte_prefetch0(RTE_PTR_ADD(first_seg->buf_addr, + first_seg->data_off)); + rx_pkts[nb_rx++] = first_seg; + first_seg = NULL; + } + + /* Record index of the next RX descriptor to probe. */ + rxq->rx_tail = rx_id; + rxq->pkt_first_seg = first_seg; + rxq->pkt_last_seg = last_seg; + + /* If the number of free RX descriptors is greater than the RX free + * threshold of the queue, advance the Receive Descriptor Tail (RDT) + * register. Update the RDT with the value of the last processed RX + * descriptor minus 1, to guarantee that the RDT register is never + * equal to the RDH register, which creates a "full" ring situtation + * from the hardware point of view. + */ + nb_hold = (uint16_t)(nb_hold + rxq->nb_rx_hold); + if (nb_hold > rxq->rx_free_thresh) { + PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_tail=%u " + "nb_hold=%u nb_rx=%u", + rxq->port_id, rxq->queue_id, + rx_id, nb_hold, nb_rx); + rx_id = (uint16_t)(rx_id == 0 ? + (rxq->nb_rx_desc - 1) : (rx_id - 1)); + AVF_PCI_REG_WRITE(rxq->qrx_tail, rx_id); + nb_hold = 0; + } + rxq->nb_rx_hold = nb_hold; + + return nb_rx; +} + +#define AVF_LOOK_AHEAD 8 +static inline int +avf_rx_scan_hw_ring(struct avf_rx_queue *rxq) +{ + volatile union avf_rx_desc *rxdp; + struct rte_mbuf **rxep; + struct rte_mbuf *mb; + uint16_t pkt_len; + uint64_t qword1; + uint32_t rx_status; + int32_t s[AVF_LOOK_AHEAD], nb_dd; + int32_t i, j, nb_rx = 0; + uint64_t pkt_flags; + static const uint32_t ptype_tbl[UINT8_MAX + 1] __rte_cache_aligned = { + /* [0] reserved */ + [1] = RTE_PTYPE_L2_ETHER, + /* [2] - [21] reserved */ + [22] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_FRAG, + [23] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_NONFRAG, + [24] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_UDP, + /* [25] reserved */ + [26] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_TCP, + [27] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_SCTP, + [28] = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | + RTE_PTYPE_L4_ICMP, + /* All others reserved */ + }; + + rxdp = &rxq->rx_ring[rxq->rx_tail]; + rxep = &rxq->sw_ring[rxq->rx_tail]; + + qword1 = rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len); + rx_status = (qword1 & AVF_RXD_QW1_STATUS_MASK) >> + AVF_RXD_QW1_STATUS_SHIFT; + + /* Make sure there is at least 1 packet to receive */ + if (!(rx_status & (1 << AVF_RX_DESC_STATUS_DD_SHIFT))) + return 0; + + /* Scan LOOK_AHEAD descriptors at a time to determine which + * descriptors reference packets that are ready to be received. + */ + for (i = 0; i < AVF_RX_MAX_BURST; i += AVF_LOOK_AHEAD, + rxdp += AVF_LOOK_AHEAD, rxep += AVF_LOOK_AHEAD) { + /* Read desc statuses backwards to avoid race condition */ + for (j = AVF_LOOK_AHEAD - 1; j >= 0; j--) { + qword1 = rte_le_to_cpu_64( + rxdp[j].wb.qword1.status_error_len); + s[j] = (qword1 & AVF_RXD_QW1_STATUS_MASK) >> + AVF_RXD_QW1_STATUS_SHIFT; + } + + rte_smp_rmb(); + + /* Compute how many status bits were set */ + for (j = 0, nb_dd = 0; j < AVF_LOOK_AHEAD; j++) + nb_dd += s[j] & (1 << AVF_RX_DESC_STATUS_DD_SHIFT); + + nb_rx += nb_dd; + + /* Translate descriptor info to mbuf parameters */ + for (j = 0; j < nb_dd; j++) { + AVF_DUMP_RX_DESC(rxq, &rxdp[j], + rxq->rx_tail + i * AVF_LOOK_AHEAD + j); + + mb = rxep[j]; + qword1 = rte_le_to_cpu_64 + (rxdp[j].wb.qword1.status_error_len); + pkt_len = ((qword1 & AVF_RXD_QW1_LENGTH_PBUF_MASK) >> + AVF_RXD_QW1_LENGTH_PBUF_SHIFT) - rxq->crc_len; + mb->data_len = pkt_len; + mb->pkt_len = pkt_len; + mb->ol_flags = 0; + avf_rxd_to_vlan_tci(mb, &rxdp[j]); + pkt_flags = avf_rxd_to_pkt_flags(qword1); + mb->packet_type = + ptype_tbl[(uint8_t)((qword1 & + AVF_RXD_QW1_PTYPE_MASK) >> + AVF_RXD_QW1_PTYPE_SHIFT)]; + + if (pkt_flags & PKT_RX_RSS_HASH) + mb->hash.rss = rte_le_to_cpu_32( + rxdp[j].wb.qword0.hi_dword.rss); + + mb->ol_flags |= pkt_flags; + } + + for (j = 0; j < AVF_LOOK_AHEAD; j++) + rxq->rx_stage[i + j] = rxep[j]; + + if (nb_dd != AVF_LOOK_AHEAD) + break; + } + + /* Clear software ring entries */ + for (i = 0; i < nb_rx; i++) + rxq->sw_ring[rxq->rx_tail + i] = NULL; + + return nb_rx; +} + +static inline uint16_t +avf_rx_fill_from_stage(struct avf_rx_queue *rxq, + struct rte_mbuf **rx_pkts, + uint16_t nb_pkts) +{ + uint16_t i; + struct rte_mbuf **stage = &rxq->rx_stage[rxq->rx_next_avail]; + + nb_pkts = (uint16_t)RTE_MIN(nb_pkts, rxq->rx_nb_avail); + + for (i = 0; i < nb_pkts; i++) + rx_pkts[i] = stage[i]; + + rxq->rx_nb_avail = (uint16_t)(rxq->rx_nb_avail - nb_pkts); + rxq->rx_next_avail = (uint16_t)(rxq->rx_next_avail + nb_pkts); + + return nb_pkts; +} + +static inline int +avf_rx_alloc_bufs(struct avf_rx_queue *rxq) +{ + volatile union avf_rx_desc *rxdp; + struct rte_mbuf **rxep; + struct rte_mbuf *mb; + uint16_t alloc_idx, i; + uint64_t dma_addr; + int diag; + + /* Allocate buffers in bulk */ + alloc_idx = (uint16_t)(rxq->rx_free_trigger - + (rxq->rx_free_thresh - 1)); + rxep = &rxq->sw_ring[alloc_idx]; + diag = rte_mempool_get_bulk(rxq->mp, (void *)rxep, + rxq->rx_free_thresh); + if (unlikely(diag != 0)) { + PMD_RX_LOG(ERR, "Failed to get mbufs in bulk"); + return -ENOMEM; + } + + rxdp = &rxq->rx_ring[alloc_idx]; + for (i = 0; i < rxq->rx_free_thresh; i++) { + if (likely(i < (rxq->rx_free_thresh - 1))) + /* Prefetch next mbuf */ + rte_prefetch0(rxep[i + 1]); + + mb = rxep[i]; + rte_mbuf_refcnt_set(mb, 1); + mb->next = NULL; + mb->data_off = RTE_PKTMBUF_HEADROOM; + mb->nb_segs = 1; + mb->port = rxq->port_id; + dma_addr = rte_cpu_to_le_64(rte_mbuf_data_iova_default(mb)); + rxdp[i].read.hdr_addr = 0; + rxdp[i].read.pkt_addr = dma_addr; + } + + /* Update rx tail register */ + rte_wmb(); + AVF_PCI_REG_WRITE_RELAXED(rxq->qrx_tail, rxq->rx_free_trigger); + + rxq->rx_free_trigger = + (uint16_t)(rxq->rx_free_trigger + rxq->rx_free_thresh); + if (rxq->rx_free_trigger >= rxq->nb_rx_desc) + rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1); + + return 0; +} + +static inline uint16_t +rx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts) +{ + struct avf_rx_queue *rxq = (struct avf_rx_queue *)rx_queue; + struct rte_eth_dev *dev; + uint16_t nb_rx = 0; + + if (!nb_pkts) + return 0; + + if (rxq->rx_nb_avail) + return avf_rx_fill_from_stage(rxq, rx_pkts, nb_pkts); + + nb_rx = (uint16_t)avf_rx_scan_hw_ring(rxq); + rxq->rx_next_avail = 0; + rxq->rx_nb_avail = nb_rx; + rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_rx); + + if (rxq->rx_tail > rxq->rx_free_trigger) { + if (avf_rx_alloc_bufs(rxq) != 0) { + uint16_t i, j; + + /* TODO: count rx_mbuf_alloc_failed here */ + + rxq->rx_nb_avail = 0; + rxq->rx_tail = (uint16_t)(rxq->rx_tail - nb_rx); + for (i = 0, j = rxq->rx_tail; i < nb_rx; i++, j++) + rxq->sw_ring[j] = rxq->rx_stage[i]; + + return 0; + } + } + + if (rxq->rx_tail >= rxq->nb_rx_desc) + rxq->rx_tail = 0; + + PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_tail=%u, nb_rx=%u", + rxq->port_id, rxq->queue_id, + rxq->rx_tail, nb_rx); + + if (rxq->rx_nb_avail) + return avf_rx_fill_from_stage(rxq, rx_pkts, nb_pkts); + + return 0; +} + +static uint16_t +avf_recv_pkts_bulk_alloc(void *rx_queue, + struct rte_mbuf **rx_pkts, + uint16_t nb_pkts) +{ + uint16_t nb_rx = 0, n, count; + + if (unlikely(nb_pkts == 0)) + return 0; + + if (likely(nb_pkts <= AVF_RX_MAX_BURST)) + return rx_recv_pkts(rx_queue, rx_pkts, nb_pkts); + + while (nb_pkts) { + n = RTE_MIN(nb_pkts, AVF_RX_MAX_BURST); + count = rx_recv_pkts(rx_queue, &rx_pkts[nb_rx], n); + nb_rx = (uint16_t)(nb_rx + count); + nb_pkts = (uint16_t)(nb_pkts - count); + if (count < n) + break; + } + + return nb_rx; +} + +static inline int +avf_xmit_cleanup(struct avf_tx_queue *txq) +{ + struct avf_tx_entry *sw_ring = txq->sw_ring; + uint16_t last_desc_cleaned = txq->last_desc_cleaned; + uint16_t nb_tx_desc = txq->nb_tx_desc; + uint16_t desc_to_clean_to; + uint16_t nb_tx_to_clean; + + volatile struct avf_tx_desc *txd = txq->tx_ring; + + desc_to_clean_to = (uint16_t)(last_desc_cleaned + txq->rs_thresh); + if (desc_to_clean_to >= nb_tx_desc) + desc_to_clean_to = (uint16_t)(desc_to_clean_to - nb_tx_desc); + + desc_to_clean_to = sw_ring[desc_to_clean_to].last_id; + if ((txd[desc_to_clean_to].cmd_type_offset_bsz & + rte_cpu_to_le_64(AVF_TXD_QW1_DTYPE_MASK)) != + rte_cpu_to_le_64(AVF_TX_DESC_DTYPE_DESC_DONE)) { + PMD_TX_FREE_LOG(DEBUG, "TX descriptor %4u is not done " + "(port=%d queue=%d)", desc_to_clean_to, + txq->port_id, txq->queue_id); + return -1; + } + + if (last_desc_cleaned > desc_to_clean_to) + nb_tx_to_clean = (uint16_t)((nb_tx_desc - last_desc_cleaned) + + desc_to_clean_to); + else + nb_tx_to_clean = (uint16_t)(desc_to_clean_to - + last_desc_cleaned); + + txd[desc_to_clean_to].cmd_type_offset_bsz = 0; + + txq->last_desc_cleaned = desc_to_clean_to; + txq->nb_free = (uint16_t)(txq->nb_free + nb_tx_to_clean); + + return 0; +} + +/* Check if the context descriptor is needed for TX offloading */ +static inline uint16_t +avf_calc_context_desc(uint64_t flags) +{ + static uint64_t mask = PKT_TX_TCP_SEG; + + return (flags & mask) ? 1 : 0; +} + +static inline void +avf_txd_enable_checksum(uint64_t ol_flags, + uint32_t *td_cmd, + uint32_t *td_offset, + union avf_tx_offload tx_offload) +{ + /* Set MACLEN */ + *td_offset |= (tx_offload.l2_len >> 1) << + AVF_TX_DESC_LENGTH_MACLEN_SHIFT; + + /* Enable L3 checksum offloads */ + if (ol_flags & PKT_TX_IP_CKSUM) { + *td_cmd |= AVF_TX_DESC_CMD_IIPT_IPV4_CSUM; + *td_offset |= (tx_offload.l3_len >> 2) << + AVF_TX_DESC_LENGTH_IPLEN_SHIFT; + } else if (ol_flags & PKT_TX_IPV4) { + *td_cmd |= AVF_TX_DESC_CMD_IIPT_IPV4; + *td_offset |= (tx_offload.l3_len >> 2) << + AVF_TX_DESC_LENGTH_IPLEN_SHIFT; + } else if (ol_flags & PKT_TX_IPV6) { + *td_cmd |= AVF_TX_DESC_CMD_IIPT_IPV6; + *td_offset |= (tx_offload.l3_len >> 2) << + AVF_TX_DESC_LENGTH_IPLEN_SHIFT; + } + + if (ol_flags & PKT_TX_TCP_SEG) { + *td_cmd |= AVF_TX_DESC_CMD_L4T_EOFT_TCP; + *td_offset |= (tx_offload.l4_len >> 2) << + AVF_TX_DESC_LENGTH_L4_FC_LEN_SHIFT; + return; + } + + /* Enable L4 checksum offloads */ + switch (ol_flags & PKT_TX_L4_MASK) { + case PKT_TX_TCP_CKSUM: + *td_cmd |= AVF_TX_DESC_CMD_L4T_EOFT_TCP; + *td_offset |= (sizeof(struct tcp_hdr) >> 2) << + AVF_TX_DESC_LENGTH_L4_FC_LEN_SHIFT; + break; + case PKT_TX_SCTP_CKSUM: + *td_cmd |= AVF_TX_DESC_CMD_L4T_EOFT_SCTP; + *td_offset |= (sizeof(struct sctp_hdr) >> 2) << + AVF_TX_DESC_LENGTH_L4_FC_LEN_SHIFT; + break; + case PKT_TX_UDP_CKSUM: + *td_cmd |= AVF_TX_DESC_CMD_L4T_EOFT_UDP; + *td_offset |= (sizeof(struct udp_hdr) >> 2) << + AVF_TX_DESC_LENGTH_L4_FC_LEN_SHIFT; + break; + default: + break; + } +} + +/* set TSO context descriptor + * support IP -> L4 and IP -> IP -> L4 + */ +static inline uint64_t +avf_set_tso_ctx(struct rte_mbuf *mbuf, union avf_tx_offload tx_offload) +{ + uint64_t ctx_desc = 0; + uint32_t cd_cmd, hdr_len, cd_tso_len; + + if (!tx_offload.l4_len) { + PMD_TX_LOG(DEBUG, "L4 length set to 0"); + return ctx_desc; + } + + /* in case of non tunneling packet, the outer_l2_len and + * outer_l3_len must be 0. + */ + hdr_len = tx_offload.l2_len + + tx_offload.l3_len + + tx_offload.l4_len; + + cd_cmd = AVF_TX_CTX_DESC_TSO; + cd_tso_len = mbuf->pkt_len - hdr_len; + ctx_desc |= ((uint64_t)cd_cmd << AVF_TXD_CTX_QW1_CMD_SHIFT) | + ((uint64_t)cd_tso_len << AVF_TXD_CTX_QW1_TSO_LEN_SHIFT) | + ((uint64_t)mbuf->tso_segsz << AVF_TXD_CTX_QW1_MSS_SHIFT); + + return ctx_desc; +} + +/* Construct the tx flags */ +static inline uint64_t +avf_build_ctob(uint32_t td_cmd, uint32_t td_offset, unsigned int size, + uint32_t td_tag) +{ + return rte_cpu_to_le_64(AVF_TX_DESC_DTYPE_DATA | + ((uint64_t)td_cmd << AVF_TXD_QW1_CMD_SHIFT) | + ((uint64_t)td_offset << + AVF_TXD_QW1_OFFSET_SHIFT) | + ((uint64_t)size << + AVF_TXD_QW1_TX_BUF_SZ_SHIFT) | + ((uint64_t)td_tag << + AVF_TXD_QW1_L2TAG1_SHIFT)); +} + +/* TX function */ +uint16_t +avf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) +{ + volatile struct avf_tx_desc *txd; + volatile struct avf_tx_desc *txr; + struct avf_tx_queue *txq; + struct avf_tx_entry *sw_ring; + struct avf_tx_entry *txe, *txn; + struct rte_mbuf *tx_pkt; + struct rte_mbuf *m_seg; + uint16_t tx_id; + uint16_t nb_tx; + uint32_t td_cmd; + uint32_t td_offset; + uint32_t td_tag; + uint64_t ol_flags; + uint16_t nb_used; + uint16_t nb_ctx; + uint16_t tx_last; + uint16_t slen; + uint64_t buf_dma_addr; + union avf_tx_offload tx_offload = {0}; + + txq = tx_queue; + sw_ring = txq->sw_ring; + txr = txq->tx_ring; + tx_id = txq->tx_tail; + txe = &sw_ring[tx_id]; + + /* Check if the descriptor ring needs to be cleaned. */ + if (txq->nb_free < txq->free_thresh) + avf_xmit_cleanup(txq); + + for (nb_tx = 0; nb_tx < nb_pkts; nb_tx++) { + td_cmd = 0; + td_tag = 0; + td_offset = 0; + + tx_pkt = *tx_pkts++; + RTE_MBUF_PREFETCH_TO_FREE(txe->mbuf); + + ol_flags = tx_pkt->ol_flags; + tx_offload.l2_len = tx_pkt->l2_len; + tx_offload.l3_len = tx_pkt->l3_len; + tx_offload.l4_len = tx_pkt->l4_len; + tx_offload.tso_segsz = tx_pkt->tso_segsz; + + /* Calculate the number of context descriptors needed. */ + nb_ctx = avf_calc_context_desc(ol_flags); + + /* The number of descriptors that must be allocated for + * a packet equals to the number of the segments of that + * packet plus 1 context descriptor if needed. + */ + nb_used = (uint16_t)(tx_pkt->nb_segs + nb_ctx); + tx_last = (uint16_t)(tx_id + nb_used - 1); + + /* Circular ring */ + if (tx_last >= txq->nb_tx_desc) + tx_last = (uint16_t)(tx_last - txq->nb_tx_desc); + + PMD_TX_LOG(DEBUG, "port_id=%u queue_id=%u" + " tx_first=%u tx_last=%u", + txq->port_id, txq->queue_id, tx_id, tx_last); + + if (nb_used > txq->nb_free) { + if (avf_xmit_cleanup(txq)) { + if (nb_tx == 0) + return 0; + goto end_of_tx; + } + if (unlikely(nb_used > txq->rs_thresh)) { + while (nb_used > txq->nb_free) { + if (avf_xmit_cleanup(txq)) { + if (nb_tx == 0) + return 0; + goto end_of_tx; + } + } + } + } + + /* Descriptor based VLAN insertion */ + if (ol_flags & PKT_TX_VLAN_PKT) { + td_cmd |= AVF_TX_DESC_CMD_IL2TAG1; + td_tag = tx_pkt->vlan_tci; + } + + /* According to datasheet, the bit2 is reserved and must be + * set to 1. + */ + td_cmd |= 0x04; + + /* Enable checksum offloading */ + if (ol_flags & AVF_TX_CKSUM_OFFLOAD_MASK) + avf_txd_enable_checksum(ol_flags, &td_cmd, + &td_offset, tx_offload); + + if (nb_ctx) { + /* Setup TX context descriptor if required */ + volatile struct avf_tx_context_desc *ctx_txd = + (volatile struct avf_tx_context_desc *) + &txr[tx_id]; + uint16_t cd_l2tag2 = 0; + uint64_t cd_type_cmd_tso_mss = + AVF_TX_DESC_DTYPE_CONTEXT; + + txn = &sw_ring[txe->next_id]; + RTE_MBUF_PREFETCH_TO_FREE(txn->mbuf); + if (txe->mbuf) { + rte_pktmbuf_free_seg(txe->mbuf); + txe->mbuf = NULL; + } + + /* TSO enabled */ + if (ol_flags & PKT_TX_TCP_SEG) + cd_type_cmd_tso_mss |= + avf_set_tso_ctx(tx_pkt, tx_offload); + + AVF_DUMP_TX_DESC(txq, ctx_txd, tx_id); + txe->last_id = tx_last; + tx_id = txe->next_id; + txe = txn; + } + + m_seg = tx_pkt; + do { + txd = &txr[tx_id]; + txn = &sw_ring[txe->next_id]; + + if (txe->mbuf) + rte_pktmbuf_free_seg(txe->mbuf); + txe->mbuf = m_seg; + + /* Setup TX Descriptor */ + slen = m_seg->data_len; + buf_dma_addr = rte_mbuf_data_iova(m_seg); + txd->buffer_addr = rte_cpu_to_le_64(buf_dma_addr); + txd->cmd_type_offset_bsz = avf_build_ctob(td_cmd, + td_offset, + slen, + td_tag); + + AVF_DUMP_TX_DESC(txq, txd, tx_id); + txe->last_id = tx_last; + tx_id = txe->next_id; + txe = txn; + m_seg = m_seg->next; + } while (m_seg); + + /* The last packet data descriptor needs End Of Packet (EOP) */ + td_cmd |= AVF_TX_DESC_CMD_EOP; + txq->nb_used = (uint16_t)(txq->nb_used + nb_used); + txq->nb_free = (uint16_t)(txq->nb_free - nb_used); + + if (txq->nb_used >= txq->rs_thresh) { + PMD_TX_LOG(DEBUG, "Setting RS bit on TXD id=" + "%4u (port=%d queue=%d)", + tx_last, txq->port_id, txq->queue_id); + + td_cmd |= AVF_TX_DESC_CMD_RS; + + /* Update txq RS bit counters */ + txq->nb_used = 0; + } + + txd->cmd_type_offset_bsz |= + rte_cpu_to_le_64(((uint64_t)td_cmd) << + AVF_TXD_QW1_CMD_SHIFT); + AVF_DUMP_TX_DESC(txq, txd, tx_id); + } + +end_of_tx: + rte_wmb(); + + PMD_TX_LOG(DEBUG, "port_id=%u queue_id=%u tx_tail=%u nb_tx=%u", + txq->port_id, txq->queue_id, tx_id, nb_tx); + + AVF_PCI_REG_WRITE_RELAXED(txq->qtx_tail, tx_id); + txq->tx_tail = tx_id; + + return nb_tx; +} + +static uint16_t +avf_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) +{ + uint16_t nb_tx = 0; + struct avf_tx_queue *txq = (struct avf_tx_queue *)tx_queue; + + while (nb_pkts) { + uint16_t ret, num; + + num = (uint16_t)RTE_MIN(nb_pkts, txq->rs_thresh); + ret = avf_xmit_fixed_burst_vec(tx_queue, &tx_pkts[nb_tx], num); + nb_tx += ret; + nb_pkts -= ret; + if (ret < num) + break; + } + + return nb_tx; +} + +/* TX prep functions */ +uint16_t +avf_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) +{ + int i, ret; + uint64_t ol_flags; + struct rte_mbuf *m; + + for (i = 0; i < nb_pkts; i++) { + m = tx_pkts[i]; + ol_flags = m->ol_flags; + + /* Check condition for nb_segs > AVF_TX_MAX_MTU_SEG. */ + if (!(ol_flags & PKT_TX_TCP_SEG)) { + if (m->nb_segs > AVF_TX_MAX_MTU_SEG) { + rte_errno = -EINVAL; + return i; + } + } else if ((m->tso_segsz < AVF_MIN_TSO_MSS) || + (m->tso_segsz > AVF_MAX_TSO_MSS)) { + /* MSS outside the range are considered malicious */ + rte_errno = -EINVAL; + return i; + } + + if (ol_flags & AVF_TX_OFFLOAD_NOTSUP_MASK) { + rte_errno = -ENOTSUP; + return i; + } + +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + ret = rte_validate_tx_offload(m); + if (ret != 0) { + rte_errno = ret; + return i; + } +#endif + ret = rte_net_intel_cksum_prepare(m); + if (ret != 0) { + rte_errno = ret; + return i; + } + } + + return i; +} + +/* choose rx function*/ +void +avf_set_rx_function(struct rte_eth_dev *dev) +{ + struct avf_adapter *adapter = + AVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); + struct avf_rx_queue *rxq; + int i; + + if (adapter->rx_vec_allowed) { + if (dev->data->scattered_rx) { + PMD_DRV_LOG(DEBUG, "Using Vector Scattered Rx callback" + " (port=%d).", dev->data->port_id); + dev->rx_pkt_burst = avf_recv_scattered_pkts_vec; + } else { + PMD_DRV_LOG(DEBUG, "Using Vector Rx callback" + " (port=%d).", dev->data->port_id); + dev->rx_pkt_burst = avf_recv_pkts_vec; + } + for (i = 0; i < dev->data->nb_rx_queues; i++) { + rxq = dev->data->rx_queues[i]; + if (!rxq) + continue; + avf_rxq_vec_setup(rxq); + } + } else if (dev->data->scattered_rx) { + PMD_DRV_LOG(DEBUG, "Using a Scattered Rx callback (port=%d).", + dev->data->port_id); + dev->rx_pkt_burst = avf_recv_scattered_pkts; + } else if (adapter->rx_bulk_alloc_allowed) { + PMD_DRV_LOG(DEBUG, "Using bulk Rx callback (port=%d).", + dev->data->port_id); + dev->rx_pkt_burst = avf_recv_pkts_bulk_alloc; + } else { + PMD_DRV_LOG(DEBUG, "Using Basic Rx callback (port=%d).", + dev->data->port_id); + dev->rx_pkt_burst = avf_recv_pkts; + } +} + +/* choose tx function*/ +void +avf_set_tx_function(struct rte_eth_dev *dev) +{ + struct avf_adapter *adapter = + AVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); + struct avf_tx_queue *txq; + int i; + + if (adapter->tx_vec_allowed) { + PMD_DRV_LOG(DEBUG, "Using Vector Tx callback (port=%d).", + dev->data->port_id); + dev->tx_pkt_burst = avf_xmit_pkts_vec; + dev->tx_pkt_prepare = NULL; + for (i = 0; i < dev->data->nb_tx_queues; i++) { + txq = dev->data->tx_queues[i]; + if (!txq) + continue; + avf_txq_vec_setup(txq); + } + } else { + PMD_DRV_LOG(DEBUG, "Using Basic Tx callback (port=%d).", + dev->data->port_id); + dev->tx_pkt_burst = avf_xmit_pkts; + dev->tx_pkt_prepare = avf_prep_pkts; + } +} + +void +avf_dev_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id, + struct rte_eth_rxq_info *qinfo) +{ + struct avf_rx_queue *rxq; + + rxq = dev->data->rx_queues[queue_id]; + + qinfo->mp = rxq->mp; + qinfo->scattered_rx = dev->data->scattered_rx; + qinfo->nb_desc = rxq->nb_rx_desc; + + qinfo->conf.rx_free_thresh = rxq->rx_free_thresh; + qinfo->conf.rx_drop_en = TRUE; + qinfo->conf.rx_deferred_start = rxq->rx_deferred_start; +} + +void +avf_dev_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id, + struct rte_eth_txq_info *qinfo) +{ + struct avf_tx_queue *txq; + + txq = dev->data->tx_queues[queue_id]; + + qinfo->nb_desc = txq->nb_tx_desc; + + qinfo->conf.tx_free_thresh = txq->free_thresh; + qinfo->conf.tx_rs_thresh = txq->rs_thresh; + qinfo->conf.txq_flags = txq->txq_flags; + qinfo->conf.tx_deferred_start = txq->tx_deferred_start; +} + +/* Get the number of used descriptors of a rx queue */ +uint32_t +avf_dev_rxq_count(struct rte_eth_dev *dev, uint16_t queue_id) +{ +#define AVF_RXQ_SCAN_INTERVAL 4 + volatile union avf_rx_desc *rxdp; + struct avf_rx_queue *rxq; + uint16_t desc = 0; + + rxq = dev->data->rx_queues[queue_id]; + rxdp = &rxq->rx_ring[rxq->rx_tail]; + while ((desc < rxq->nb_rx_desc) && + ((rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len) & + AVF_RXD_QW1_STATUS_MASK) >> AVF_RXD_QW1_STATUS_SHIFT) & + (1 << AVF_RX_DESC_STATUS_DD_SHIFT)) { + /* Check the DD bit of a rx descriptor of each 4 in a group, + * to avoid checking too frequently and downgrading performance + * too much. + */ + desc += AVF_RXQ_SCAN_INTERVAL; + rxdp += AVF_RXQ_SCAN_INTERVAL; + if (rxq->rx_tail + desc >= rxq->nb_rx_desc) + rxdp = &(rxq->rx_ring[rxq->rx_tail + + desc - rxq->nb_rx_desc]); + } + + return desc; +} + +int +avf_dev_rx_desc_status(void *rx_queue, uint16_t offset) +{ + struct avf_rx_queue *rxq = rx_queue; + volatile uint64_t *status; + uint64_t mask; + uint32_t desc; + + if (unlikely(offset >= rxq->nb_rx_desc)) + return -EINVAL; + + if (offset >= rxq->nb_rx_desc - rxq->nb_rx_hold) + return RTE_ETH_RX_DESC_UNAVAIL; + + desc = rxq->rx_tail + offset; + if (desc >= rxq->nb_rx_desc) + desc -= rxq->nb_rx_desc; + + status = &rxq->rx_ring[desc].wb.qword1.status_error_len; + mask = rte_le_to_cpu_64((1ULL << AVF_RX_DESC_STATUS_DD_SHIFT) + << AVF_RXD_QW1_STATUS_SHIFT); + if (*status & mask) + return RTE_ETH_RX_DESC_DONE; + + return RTE_ETH_RX_DESC_AVAIL; +} + +int +avf_dev_tx_desc_status(void *tx_queue, uint16_t offset) +{ + struct avf_tx_queue *txq = tx_queue; + volatile uint64_t *status; + uint64_t mask, expect; + uint32_t desc; + + if (unlikely(offset >= txq->nb_tx_desc)) + return -EINVAL; + + desc = txq->tx_tail + offset; + /* go to next desc that has the RS bit */ + desc = ((desc + txq->rs_thresh - 1) / txq->rs_thresh) * + txq->rs_thresh; + if (desc >= txq->nb_tx_desc) { + desc -= txq->nb_tx_desc; + if (desc >= txq->nb_tx_desc) + desc -= txq->nb_tx_desc; + } + + status = &txq->tx_ring[desc].cmd_type_offset_bsz; + mask = rte_le_to_cpu_64(AVF_TXD_QW1_DTYPE_MASK); + expect = rte_cpu_to_le_64( + AVF_TX_DESC_DTYPE_DESC_DONE << AVF_TXD_QW1_DTYPE_SHIFT); + if ((*status & mask) == expect) + return RTE_ETH_TX_DESC_DONE; + + return RTE_ETH_TX_DESC_FULL; +} + +uint16_t __attribute__((weak)) +avf_recv_pkts_vec(__rte_unused void *rx_queue, + __rte_unused struct rte_mbuf **rx_pkts, + __rte_unused uint16_t nb_pkts) +{ + return 0; +} + +uint16_t __attribute__((weak)) +avf_recv_scattered_pkts_vec(__rte_unused void *rx_queue, + __rte_unused struct rte_mbuf **rx_pkts, + __rte_unused uint16_t nb_pkts) +{ + return 0; +} + +uint16_t __attribute__((weak)) +avf_xmit_fixed_burst_vec(__rte_unused void *tx_queue, + __rte_unused struct rte_mbuf **tx_pkts, + __rte_unused uint16_t nb_pkts) +{ + return 0; +} + +int __attribute__((weak)) +avf_rxq_vec_setup(__rte_unused struct avf_rx_queue *rxq) +{ + return -1; +} + +int __attribute__((weak)) +avf_txq_vec_setup(__rte_unused struct avf_tx_queue *txq) +{ + return -1; +} |