1131900006
Some duplex values are replaced from 0 to half-duplex when link is down. Some drivers are still using their own constants for duplex modes. Signed-off-by: Marc Sune <marcdevel@gmail.com>
1462 lines
40 KiB
C
1462 lines
40 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include <unistd.h>
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#include <rte_ethdev.h>
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#include <rte_memcpy.h>
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#include <rte_string_fns.h>
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#include <rte_memzone.h>
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#include <rte_malloc.h>
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#include <rte_atomic.h>
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#include <rte_branch_prediction.h>
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#include <rte_pci.h>
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#include <rte_ether.h>
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#include <rte_common.h>
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#include <rte_errno.h>
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#include <rte_memory.h>
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#include <rte_eal.h>
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#include <rte_dev.h>
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#include "virtio_ethdev.h"
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#include "virtio_pci.h"
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#include "virtio_logs.h"
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#include "virtqueue.h"
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#include "virtio_rxtx.h"
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static int eth_virtio_dev_init(struct rte_eth_dev *eth_dev);
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static int eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev);
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static int virtio_dev_configure(struct rte_eth_dev *dev);
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static int virtio_dev_start(struct rte_eth_dev *dev);
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static void virtio_dev_stop(struct rte_eth_dev *dev);
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static void virtio_dev_promiscuous_enable(struct rte_eth_dev *dev);
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static void virtio_dev_promiscuous_disable(struct rte_eth_dev *dev);
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static void virtio_dev_allmulticast_enable(struct rte_eth_dev *dev);
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static void virtio_dev_allmulticast_disable(struct rte_eth_dev *dev);
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static void virtio_dev_info_get(struct rte_eth_dev *dev,
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struct rte_eth_dev_info *dev_info);
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static int virtio_dev_link_update(struct rte_eth_dev *dev,
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__rte_unused int wait_to_complete);
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static void virtio_set_hwaddr(struct virtio_hw *hw);
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static void virtio_get_hwaddr(struct virtio_hw *hw);
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static void virtio_dev_stats_get(struct rte_eth_dev *dev,
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struct rte_eth_stats *stats);
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static int virtio_dev_xstats_get(struct rte_eth_dev *dev,
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struct rte_eth_xstats *xstats, unsigned n);
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static void virtio_dev_stats_reset(struct rte_eth_dev *dev);
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static void virtio_dev_free_mbufs(struct rte_eth_dev *dev);
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static int virtio_vlan_filter_set(struct rte_eth_dev *dev,
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uint16_t vlan_id, int on);
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static void virtio_mac_addr_add(struct rte_eth_dev *dev,
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struct ether_addr *mac_addr,
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uint32_t index, uint32_t vmdq __rte_unused);
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static void virtio_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index);
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static void virtio_mac_addr_set(struct rte_eth_dev *dev,
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struct ether_addr *mac_addr);
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static int virtio_dev_queue_stats_mapping_set(
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__rte_unused struct rte_eth_dev *eth_dev,
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__rte_unused uint16_t queue_id,
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__rte_unused uint8_t stat_idx,
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__rte_unused uint8_t is_rx);
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/*
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* The set of PCI devices this driver supports
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*/
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static const struct rte_pci_id pci_id_virtio_map[] = {
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#define RTE_PCI_DEV_ID_DECL_VIRTIO(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
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#include "rte_pci_dev_ids.h"
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{ .vendor_id = 0, /* sentinel */ },
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};
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struct rte_virtio_xstats_name_off {
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char name[RTE_ETH_XSTATS_NAME_SIZE];
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unsigned offset;
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};
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/* [rt]x_qX_ is prepended to the name string here */
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static const struct rte_virtio_xstats_name_off rte_virtio_q_stat_strings[] = {
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{"good_packets", offsetof(struct virtqueue, packets)},
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{"good_bytes", offsetof(struct virtqueue, bytes)},
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{"errors", offsetof(struct virtqueue, errors)},
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{"multicast_packets", offsetof(struct virtqueue, multicast)},
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{"broadcast_packets", offsetof(struct virtqueue, broadcast)},
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{"undersize_packets", offsetof(struct virtqueue, size_bins[0])},
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{"size_64_packets", offsetof(struct virtqueue, size_bins[1])},
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{"size_65_127_packets", offsetof(struct virtqueue, size_bins[2])},
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{"size_128_255_packets", offsetof(struct virtqueue, size_bins[3])},
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{"size_256_511_packets", offsetof(struct virtqueue, size_bins[4])},
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{"size_512_1023_packets", offsetof(struct virtqueue, size_bins[5])},
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{"size_1024_1517_packets", offsetof(struct virtqueue, size_bins[6])},
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{"size_1518_max_packets", offsetof(struct virtqueue, size_bins[7])},
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};
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#define VIRTIO_NB_Q_XSTATS (sizeof(rte_virtio_q_stat_strings) / \
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sizeof(rte_virtio_q_stat_strings[0]))
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static int
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virtio_send_command(struct virtqueue *vq, struct virtio_pmd_ctrl *ctrl,
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int *dlen, int pkt_num)
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{
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uint32_t head, i;
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int k, sum = 0;
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virtio_net_ctrl_ack status = ~0;
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struct virtio_pmd_ctrl result;
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ctrl->status = status;
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if (!(vq && vq->hw->cvq)) {
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PMD_INIT_LOG(ERR, "Control queue is not supported.");
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return -1;
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}
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head = vq->vq_desc_head_idx;
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PMD_INIT_LOG(DEBUG, "vq->vq_desc_head_idx = %d, status = %d, "
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"vq->hw->cvq = %p vq = %p",
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vq->vq_desc_head_idx, status, vq->hw->cvq, vq);
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if ((vq->vq_free_cnt < ((uint32_t)pkt_num + 2)) || (pkt_num < 1))
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return -1;
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memcpy(vq->virtio_net_hdr_mz->addr, ctrl,
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sizeof(struct virtio_pmd_ctrl));
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/*
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* Format is enforced in qemu code:
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* One TX packet for header;
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* At least one TX packet per argument;
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* One RX packet for ACK.
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*/
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vq->vq_ring.desc[head].flags = VRING_DESC_F_NEXT;
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vq->vq_ring.desc[head].addr = vq->virtio_net_hdr_mz->phys_addr;
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vq->vq_ring.desc[head].len = sizeof(struct virtio_net_ctrl_hdr);
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vq->vq_free_cnt--;
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i = vq->vq_ring.desc[head].next;
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for (k = 0; k < pkt_num; k++) {
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vq->vq_ring.desc[i].flags = VRING_DESC_F_NEXT;
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vq->vq_ring.desc[i].addr = vq->virtio_net_hdr_mz->phys_addr
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+ sizeof(struct virtio_net_ctrl_hdr)
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+ sizeof(ctrl->status) + sizeof(uint8_t)*sum;
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vq->vq_ring.desc[i].len = dlen[k];
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sum += dlen[k];
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vq->vq_free_cnt--;
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i = vq->vq_ring.desc[i].next;
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}
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vq->vq_ring.desc[i].flags = VRING_DESC_F_WRITE;
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vq->vq_ring.desc[i].addr = vq->virtio_net_hdr_mz->phys_addr
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+ sizeof(struct virtio_net_ctrl_hdr);
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vq->vq_ring.desc[i].len = sizeof(ctrl->status);
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vq->vq_free_cnt--;
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vq->vq_desc_head_idx = vq->vq_ring.desc[i].next;
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vq_update_avail_ring(vq, head);
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vq_update_avail_idx(vq);
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PMD_INIT_LOG(DEBUG, "vq->vq_queue_index = %d", vq->vq_queue_index);
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virtqueue_notify(vq);
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rte_rmb();
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while (vq->vq_used_cons_idx == vq->vq_ring.used->idx) {
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rte_rmb();
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usleep(100);
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}
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while (vq->vq_used_cons_idx != vq->vq_ring.used->idx) {
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uint32_t idx, desc_idx, used_idx;
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struct vring_used_elem *uep;
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used_idx = (uint32_t)(vq->vq_used_cons_idx
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& (vq->vq_nentries - 1));
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uep = &vq->vq_ring.used->ring[used_idx];
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idx = (uint32_t) uep->id;
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desc_idx = idx;
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while (vq->vq_ring.desc[desc_idx].flags & VRING_DESC_F_NEXT) {
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desc_idx = vq->vq_ring.desc[desc_idx].next;
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vq->vq_free_cnt++;
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}
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vq->vq_ring.desc[desc_idx].next = vq->vq_desc_head_idx;
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vq->vq_desc_head_idx = idx;
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vq->vq_used_cons_idx++;
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vq->vq_free_cnt++;
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}
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PMD_INIT_LOG(DEBUG, "vq->vq_free_cnt=%d\nvq->vq_desc_head_idx=%d",
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vq->vq_free_cnt, vq->vq_desc_head_idx);
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memcpy(&result, vq->virtio_net_hdr_mz->addr,
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sizeof(struct virtio_pmd_ctrl));
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return result.status;
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}
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static int
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virtio_set_multiple_queues(struct rte_eth_dev *dev, uint16_t nb_queues)
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{
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struct virtio_hw *hw = dev->data->dev_private;
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struct virtio_pmd_ctrl ctrl;
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int dlen[1];
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int ret;
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ctrl.hdr.class = VIRTIO_NET_CTRL_MQ;
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ctrl.hdr.cmd = VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET;
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memcpy(ctrl.data, &nb_queues, sizeof(uint16_t));
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dlen[0] = sizeof(uint16_t);
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ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
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if (ret) {
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PMD_INIT_LOG(ERR, "Multiqueue configured but send command "
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"failed, this is too late now...");
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return -EINVAL;
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}
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return 0;
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}
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void
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virtio_dev_queue_release(struct virtqueue *vq) {
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struct virtio_hw *hw;
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if (vq) {
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hw = vq->hw;
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hw->vtpci_ops->del_queue(hw, vq);
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rte_free(vq->sw_ring);
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rte_free(vq);
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}
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}
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int virtio_dev_queue_setup(struct rte_eth_dev *dev,
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int queue_type,
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uint16_t queue_idx,
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uint16_t vtpci_queue_idx,
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uint16_t nb_desc,
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unsigned int socket_id,
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struct virtqueue **pvq)
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{
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char vq_name[VIRTQUEUE_MAX_NAME_SZ];
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const struct rte_memzone *mz;
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unsigned int vq_size, size;
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struct virtio_hw *hw = dev->data->dev_private;
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struct virtqueue *vq = NULL;
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PMD_INIT_LOG(DEBUG, "setting up queue: %u", vtpci_queue_idx);
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/*
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* Read the virtqueue size from the Queue Size field
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* Always power of 2 and if 0 virtqueue does not exist
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*/
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vq_size = hw->vtpci_ops->get_queue_num(hw, vtpci_queue_idx);
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PMD_INIT_LOG(DEBUG, "vq_size: %u nb_desc:%u", vq_size, nb_desc);
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if (vq_size == 0) {
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PMD_INIT_LOG(ERR, "virtqueue does not exist");
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return -EINVAL;
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}
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if (!rte_is_power_of_2(vq_size)) {
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PMD_INIT_LOG(ERR, "virtqueue size is not powerof 2");
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return -EINVAL;
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}
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if (queue_type == VTNET_RQ) {
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snprintf(vq_name, sizeof(vq_name), "port%d_rvq%d",
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dev->data->port_id, queue_idx);
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vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) +
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vq_size * sizeof(struct vq_desc_extra), RTE_CACHE_LINE_SIZE);
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vq->sw_ring = rte_zmalloc_socket("rxq->sw_ring",
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(RTE_PMD_VIRTIO_RX_MAX_BURST + vq_size) *
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sizeof(vq->sw_ring[0]), RTE_CACHE_LINE_SIZE, socket_id);
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} else if (queue_type == VTNET_TQ) {
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snprintf(vq_name, sizeof(vq_name), "port%d_tvq%d",
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dev->data->port_id, queue_idx);
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vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) +
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vq_size * sizeof(struct vq_desc_extra), RTE_CACHE_LINE_SIZE);
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} else if (queue_type == VTNET_CQ) {
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snprintf(vq_name, sizeof(vq_name), "port%d_cvq",
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dev->data->port_id);
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vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) +
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vq_size * sizeof(struct vq_desc_extra),
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RTE_CACHE_LINE_SIZE);
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}
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if (vq == NULL) {
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PMD_INIT_LOG(ERR, "Can not allocate virtqueue");
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return -ENOMEM;
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}
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if (queue_type == VTNET_RQ && vq->sw_ring == NULL) {
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PMD_INIT_LOG(ERR, "Can not allocate RX soft ring");
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rte_free(vq);
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return -ENOMEM;
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}
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vq->hw = hw;
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vq->port_id = dev->data->port_id;
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vq->queue_id = queue_idx;
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vq->vq_queue_index = vtpci_queue_idx;
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vq->vq_nentries = vq_size;
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if (nb_desc == 0 || nb_desc > vq_size)
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nb_desc = vq_size;
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vq->vq_free_cnt = nb_desc;
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/*
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* Reserve a memzone for vring elements
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*/
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size = vring_size(vq_size, VIRTIO_PCI_VRING_ALIGN);
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vq->vq_ring_size = RTE_ALIGN_CEIL(size, VIRTIO_PCI_VRING_ALIGN);
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PMD_INIT_LOG(DEBUG, "vring_size: %d, rounded_vring_size: %d", size, vq->vq_ring_size);
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mz = rte_memzone_reserve_aligned(vq_name, vq->vq_ring_size,
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socket_id, 0, VIRTIO_PCI_VRING_ALIGN);
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if (mz == NULL) {
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if (rte_errno == EEXIST)
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mz = rte_memzone_lookup(vq_name);
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if (mz == NULL) {
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rte_free(vq);
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return -ENOMEM;
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}
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}
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|
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/*
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* Virtio PCI device VIRTIO_PCI_QUEUE_PF register is 32bit,
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* and only accepts 32 bit page frame number.
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* Check if the allocated physical memory exceeds 16TB.
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*/
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if ((mz->phys_addr + vq->vq_ring_size - 1) >> (VIRTIO_PCI_QUEUE_ADDR_SHIFT + 32)) {
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PMD_INIT_LOG(ERR, "vring address shouldn't be above 16TB!");
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rte_free(vq);
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return -ENOMEM;
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}
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memset(mz->addr, 0, sizeof(mz->len));
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vq->mz = mz;
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vq->vq_ring_mem = mz->phys_addr;
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vq->vq_ring_virt_mem = mz->addr;
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PMD_INIT_LOG(DEBUG, "vq->vq_ring_mem: 0x%"PRIx64, (uint64_t)mz->phys_addr);
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PMD_INIT_LOG(DEBUG, "vq->vq_ring_virt_mem: 0x%"PRIx64, (uint64_t)(uintptr_t)mz->addr);
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vq->virtio_net_hdr_mz = NULL;
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vq->virtio_net_hdr_mem = 0;
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if (queue_type == VTNET_TQ) {
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const struct rte_memzone *hdr_mz;
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struct virtio_tx_region *txr;
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unsigned int i;
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/*
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* For each xmit packet, allocate a virtio_net_hdr
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* and indirect ring elements
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*/
|
|
snprintf(vq_name, sizeof(vq_name), "port%d_tvq%d_hdrzone",
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dev->data->port_id, queue_idx);
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hdr_mz = rte_memzone_reserve_aligned(vq_name,
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vq_size * sizeof(*txr),
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socket_id, 0,
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RTE_CACHE_LINE_SIZE);
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if (hdr_mz == NULL) {
|
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if (rte_errno == EEXIST)
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hdr_mz = rte_memzone_lookup(vq_name);
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if (hdr_mz == NULL) {
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rte_free(vq);
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return -ENOMEM;
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}
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}
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vq->virtio_net_hdr_mz = hdr_mz;
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vq->virtio_net_hdr_mem = hdr_mz->phys_addr;
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txr = hdr_mz->addr;
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memset(txr, 0, vq_size * sizeof(*txr));
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for (i = 0; i < vq_size; i++) {
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struct vring_desc *start_dp = txr[i].tx_indir;
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|
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vring_desc_init(start_dp, RTE_DIM(txr[i].tx_indir));
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|
|
|
/* first indirect descriptor is always the tx header */
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|
start_dp->addr = vq->virtio_net_hdr_mem
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+ i * sizeof(*txr)
|
|
+ offsetof(struct virtio_tx_region, tx_hdr);
|
|
|
|
start_dp->len = vq->hw->vtnet_hdr_size;
|
|
start_dp->flags = VRING_DESC_F_NEXT;
|
|
}
|
|
|
|
} else if (queue_type == VTNET_CQ) {
|
|
/* Allocate a page for control vq command, data and status */
|
|
snprintf(vq_name, sizeof(vq_name), "port%d_cvq_hdrzone",
|
|
dev->data->port_id);
|
|
vq->virtio_net_hdr_mz = rte_memzone_reserve_aligned(vq_name,
|
|
PAGE_SIZE, socket_id, 0, RTE_CACHE_LINE_SIZE);
|
|
if (vq->virtio_net_hdr_mz == NULL) {
|
|
if (rte_errno == EEXIST)
|
|
vq->virtio_net_hdr_mz =
|
|
rte_memzone_lookup(vq_name);
|
|
if (vq->virtio_net_hdr_mz == NULL) {
|
|
rte_free(vq);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
vq->virtio_net_hdr_mem =
|
|
vq->virtio_net_hdr_mz->phys_addr;
|
|
memset(vq->virtio_net_hdr_mz->addr, 0, PAGE_SIZE);
|
|
}
|
|
|
|
hw->vtpci_ops->setup_queue(hw, vq);
|
|
|
|
*pvq = vq;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
virtio_dev_cq_queue_setup(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx,
|
|
uint32_t socket_id)
|
|
{
|
|
struct virtqueue *vq;
|
|
int ret;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
PMD_INIT_FUNC_TRACE();
|
|
ret = virtio_dev_queue_setup(dev, VTNET_CQ, VTNET_SQ_CQ_QUEUE_IDX,
|
|
vtpci_queue_idx, 0, socket_id, &vq);
|
|
if (ret < 0) {
|
|
PMD_INIT_LOG(ERR, "control vq initialization failed");
|
|
return ret;
|
|
}
|
|
|
|
hw->cvq = vq;
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
virtio_free_queues(struct rte_eth_dev *dev)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++)
|
|
virtio_dev_rx_queue_release(dev->data->rx_queues[i]);
|
|
|
|
dev->data->nb_rx_queues = 0;
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++)
|
|
virtio_dev_tx_queue_release(dev->data->tx_queues[i]);
|
|
|
|
dev->data->nb_tx_queues = 0;
|
|
}
|
|
|
|
static void
|
|
virtio_dev_close(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct rte_pci_device *pci_dev = dev->pci_dev;
|
|
|
|
PMD_INIT_LOG(DEBUG, "virtio_dev_close");
|
|
|
|
if (hw->started == 1)
|
|
virtio_dev_stop(dev);
|
|
|
|
/* reset the NIC */
|
|
if (pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC)
|
|
vtpci_irq_config(hw, VIRTIO_MSI_NO_VECTOR);
|
|
vtpci_reset(hw);
|
|
virtio_dev_free_mbufs(dev);
|
|
virtio_free_queues(dev);
|
|
}
|
|
|
|
static void
|
|
virtio_dev_promiscuous_enable(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct virtio_pmd_ctrl ctrl;
|
|
int dlen[1];
|
|
int ret;
|
|
|
|
if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
|
|
PMD_INIT_LOG(INFO, "host does not support rx control\n");
|
|
return;
|
|
}
|
|
|
|
ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
|
|
ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC;
|
|
ctrl.data[0] = 1;
|
|
dlen[0] = 1;
|
|
|
|
ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
|
|
if (ret)
|
|
PMD_INIT_LOG(ERR, "Failed to enable promisc");
|
|
}
|
|
|
|
static void
|
|
virtio_dev_promiscuous_disable(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct virtio_pmd_ctrl ctrl;
|
|
int dlen[1];
|
|
int ret;
|
|
|
|
if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
|
|
PMD_INIT_LOG(INFO, "host does not support rx control\n");
|
|
return;
|
|
}
|
|
|
|
ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
|
|
ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC;
|
|
ctrl.data[0] = 0;
|
|
dlen[0] = 1;
|
|
|
|
ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
|
|
if (ret)
|
|
PMD_INIT_LOG(ERR, "Failed to disable promisc");
|
|
}
|
|
|
|
static void
|
|
virtio_dev_allmulticast_enable(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct virtio_pmd_ctrl ctrl;
|
|
int dlen[1];
|
|
int ret;
|
|
|
|
if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
|
|
PMD_INIT_LOG(INFO, "host does not support rx control\n");
|
|
return;
|
|
}
|
|
|
|
ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
|
|
ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI;
|
|
ctrl.data[0] = 1;
|
|
dlen[0] = 1;
|
|
|
|
ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
|
|
if (ret)
|
|
PMD_INIT_LOG(ERR, "Failed to enable allmulticast");
|
|
}
|
|
|
|
static void
|
|
virtio_dev_allmulticast_disable(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct virtio_pmd_ctrl ctrl;
|
|
int dlen[1];
|
|
int ret;
|
|
|
|
if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
|
|
PMD_INIT_LOG(INFO, "host does not support rx control\n");
|
|
return;
|
|
}
|
|
|
|
ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
|
|
ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI;
|
|
ctrl.data[0] = 0;
|
|
dlen[0] = 1;
|
|
|
|
ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
|
|
if (ret)
|
|
PMD_INIT_LOG(ERR, "Failed to disable allmulticast");
|
|
}
|
|
|
|
/*
|
|
* dev_ops for virtio, bare necessities for basic operation
|
|
*/
|
|
static const struct eth_dev_ops virtio_eth_dev_ops = {
|
|
.dev_configure = virtio_dev_configure,
|
|
.dev_start = virtio_dev_start,
|
|
.dev_stop = virtio_dev_stop,
|
|
.dev_close = virtio_dev_close,
|
|
.promiscuous_enable = virtio_dev_promiscuous_enable,
|
|
.promiscuous_disable = virtio_dev_promiscuous_disable,
|
|
.allmulticast_enable = virtio_dev_allmulticast_enable,
|
|
.allmulticast_disable = virtio_dev_allmulticast_disable,
|
|
|
|
.dev_infos_get = virtio_dev_info_get,
|
|
.stats_get = virtio_dev_stats_get,
|
|
.xstats_get = virtio_dev_xstats_get,
|
|
.stats_reset = virtio_dev_stats_reset,
|
|
.xstats_reset = virtio_dev_stats_reset,
|
|
.link_update = virtio_dev_link_update,
|
|
.rx_queue_setup = virtio_dev_rx_queue_setup,
|
|
.rx_queue_release = virtio_dev_rx_queue_release,
|
|
.tx_queue_setup = virtio_dev_tx_queue_setup,
|
|
.tx_queue_release = virtio_dev_tx_queue_release,
|
|
/* collect stats per queue */
|
|
.queue_stats_mapping_set = virtio_dev_queue_stats_mapping_set,
|
|
.vlan_filter_set = virtio_vlan_filter_set,
|
|
.mac_addr_add = virtio_mac_addr_add,
|
|
.mac_addr_remove = virtio_mac_addr_remove,
|
|
.mac_addr_set = virtio_mac_addr_set,
|
|
};
|
|
|
|
static inline int
|
|
virtio_dev_atomic_read_link_status(struct rte_eth_dev *dev,
|
|
struct rte_eth_link *link)
|
|
{
|
|
struct rte_eth_link *dst = link;
|
|
struct rte_eth_link *src = &(dev->data->dev_link);
|
|
|
|
if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
|
|
*(uint64_t *)src) == 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Atomically writes the link status information into global
|
|
* structure rte_eth_dev.
|
|
*
|
|
* @param dev
|
|
* - Pointer to the structure rte_eth_dev to read from.
|
|
* - Pointer to the buffer to be saved with the link status.
|
|
*
|
|
* @return
|
|
* - On success, zero.
|
|
* - On failure, negative value.
|
|
*/
|
|
static inline int
|
|
virtio_dev_atomic_write_link_status(struct rte_eth_dev *dev,
|
|
struct rte_eth_link *link)
|
|
{
|
|
struct rte_eth_link *dst = &(dev->data->dev_link);
|
|
struct rte_eth_link *src = link;
|
|
|
|
if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
|
|
*(uint64_t *)src) == 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
virtio_update_stats(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
|
|
{
|
|
unsigned i;
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++) {
|
|
const struct virtqueue *txvq = dev->data->tx_queues[i];
|
|
if (txvq == NULL)
|
|
continue;
|
|
|
|
stats->opackets += txvq->packets;
|
|
stats->obytes += txvq->bytes;
|
|
stats->oerrors += txvq->errors;
|
|
|
|
if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
|
|
stats->q_opackets[i] = txvq->packets;
|
|
stats->q_obytes[i] = txvq->bytes;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++) {
|
|
const struct virtqueue *rxvq = dev->data->rx_queues[i];
|
|
if (rxvq == NULL)
|
|
continue;
|
|
|
|
stats->ipackets += rxvq->packets;
|
|
stats->ibytes += rxvq->bytes;
|
|
stats->ierrors += rxvq->errors;
|
|
|
|
if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
|
|
stats->q_ipackets[i] = rxvq->packets;
|
|
stats->q_ibytes[i] = rxvq->bytes;
|
|
}
|
|
}
|
|
|
|
stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed;
|
|
}
|
|
|
|
static int
|
|
virtio_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstats *xstats,
|
|
unsigned n)
|
|
{
|
|
unsigned i;
|
|
unsigned count = 0;
|
|
|
|
unsigned nstats = dev->data->nb_tx_queues * VIRTIO_NB_Q_XSTATS +
|
|
dev->data->nb_rx_queues * VIRTIO_NB_Q_XSTATS;
|
|
|
|
if (n < nstats)
|
|
return nstats;
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++) {
|
|
struct virtqueue *rxvq = dev->data->rx_queues[i];
|
|
|
|
if (rxvq == NULL)
|
|
continue;
|
|
|
|
unsigned t;
|
|
|
|
for (t = 0; t < VIRTIO_NB_Q_XSTATS; t++) {
|
|
snprintf(xstats[count].name, sizeof(xstats[count].name),
|
|
"rx_q%u_%s", i,
|
|
rte_virtio_q_stat_strings[t].name);
|
|
xstats[count].value = *(uint64_t *)(((char *)rxvq) +
|
|
rte_virtio_q_stat_strings[t].offset);
|
|
count++;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++) {
|
|
struct virtqueue *txvq = dev->data->tx_queues[i];
|
|
|
|
if (txvq == NULL)
|
|
continue;
|
|
|
|
unsigned t;
|
|
|
|
for (t = 0; t < VIRTIO_NB_Q_XSTATS; t++) {
|
|
snprintf(xstats[count].name, sizeof(xstats[count].name),
|
|
"tx_q%u_%s", i,
|
|
rte_virtio_q_stat_strings[t].name);
|
|
xstats[count].value = *(uint64_t *)(((char *)txvq) +
|
|
rte_virtio_q_stat_strings[t].offset);
|
|
count++;
|
|
}
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static void
|
|
virtio_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
|
|
{
|
|
virtio_update_stats(dev, stats);
|
|
}
|
|
|
|
static void
|
|
virtio_dev_stats_reset(struct rte_eth_dev *dev)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++) {
|
|
struct virtqueue *txvq = dev->data->tx_queues[i];
|
|
if (txvq == NULL)
|
|
continue;
|
|
|
|
txvq->packets = 0;
|
|
txvq->bytes = 0;
|
|
txvq->errors = 0;
|
|
txvq->multicast = 0;
|
|
txvq->broadcast = 0;
|
|
memset(txvq->size_bins, 0, sizeof(txvq->size_bins[0]) * 8);
|
|
}
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++) {
|
|
struct virtqueue *rxvq = dev->data->rx_queues[i];
|
|
if (rxvq == NULL)
|
|
continue;
|
|
|
|
rxvq->packets = 0;
|
|
rxvq->bytes = 0;
|
|
rxvq->errors = 0;
|
|
rxvq->multicast = 0;
|
|
rxvq->broadcast = 0;
|
|
memset(rxvq->size_bins, 0, sizeof(rxvq->size_bins[0]) * 8);
|
|
}
|
|
}
|
|
|
|
static void
|
|
virtio_set_hwaddr(struct virtio_hw *hw)
|
|
{
|
|
vtpci_write_dev_config(hw,
|
|
offsetof(struct virtio_net_config, mac),
|
|
&hw->mac_addr, ETHER_ADDR_LEN);
|
|
}
|
|
|
|
static void
|
|
virtio_get_hwaddr(struct virtio_hw *hw)
|
|
{
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_MAC)) {
|
|
vtpci_read_dev_config(hw,
|
|
offsetof(struct virtio_net_config, mac),
|
|
&hw->mac_addr, ETHER_ADDR_LEN);
|
|
} else {
|
|
eth_random_addr(&hw->mac_addr[0]);
|
|
virtio_set_hwaddr(hw);
|
|
}
|
|
}
|
|
|
|
static void
|
|
virtio_mac_table_set(struct virtio_hw *hw,
|
|
const struct virtio_net_ctrl_mac *uc,
|
|
const struct virtio_net_ctrl_mac *mc)
|
|
{
|
|
struct virtio_pmd_ctrl ctrl;
|
|
int err, len[2];
|
|
|
|
if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_MAC_ADDR)) {
|
|
PMD_DRV_LOG(INFO, "host does not support mac table\n");
|
|
return;
|
|
}
|
|
|
|
ctrl.hdr.class = VIRTIO_NET_CTRL_MAC;
|
|
ctrl.hdr.cmd = VIRTIO_NET_CTRL_MAC_TABLE_SET;
|
|
|
|
len[0] = uc->entries * ETHER_ADDR_LEN + sizeof(uc->entries);
|
|
memcpy(ctrl.data, uc, len[0]);
|
|
|
|
len[1] = mc->entries * ETHER_ADDR_LEN + sizeof(mc->entries);
|
|
memcpy(ctrl.data + len[0], mc, len[1]);
|
|
|
|
err = virtio_send_command(hw->cvq, &ctrl, len, 2);
|
|
if (err != 0)
|
|
PMD_DRV_LOG(NOTICE, "mac table set failed: %d", err);
|
|
}
|
|
|
|
static void
|
|
virtio_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
|
|
uint32_t index, uint32_t vmdq __rte_unused)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
const struct ether_addr *addrs = dev->data->mac_addrs;
|
|
unsigned int i;
|
|
struct virtio_net_ctrl_mac *uc, *mc;
|
|
|
|
if (index >= VIRTIO_MAX_MAC_ADDRS) {
|
|
PMD_DRV_LOG(ERR, "mac address index %u out of range", index);
|
|
return;
|
|
}
|
|
|
|
uc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(uc->entries));
|
|
uc->entries = 0;
|
|
mc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(mc->entries));
|
|
mc->entries = 0;
|
|
|
|
for (i = 0; i < VIRTIO_MAX_MAC_ADDRS; i++) {
|
|
const struct ether_addr *addr
|
|
= (i == index) ? mac_addr : addrs + i;
|
|
struct virtio_net_ctrl_mac *tbl
|
|
= is_multicast_ether_addr(addr) ? mc : uc;
|
|
|
|
memcpy(&tbl->macs[tbl->entries++], addr, ETHER_ADDR_LEN);
|
|
}
|
|
|
|
virtio_mac_table_set(hw, uc, mc);
|
|
}
|
|
|
|
static void
|
|
virtio_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct ether_addr *addrs = dev->data->mac_addrs;
|
|
struct virtio_net_ctrl_mac *uc, *mc;
|
|
unsigned int i;
|
|
|
|
if (index >= VIRTIO_MAX_MAC_ADDRS) {
|
|
PMD_DRV_LOG(ERR, "mac address index %u out of range", index);
|
|
return;
|
|
}
|
|
|
|
uc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(uc->entries));
|
|
uc->entries = 0;
|
|
mc = alloca(VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN + sizeof(mc->entries));
|
|
mc->entries = 0;
|
|
|
|
for (i = 0; i < VIRTIO_MAX_MAC_ADDRS; i++) {
|
|
struct virtio_net_ctrl_mac *tbl;
|
|
|
|
if (i == index || is_zero_ether_addr(addrs + i))
|
|
continue;
|
|
|
|
tbl = is_multicast_ether_addr(addrs + i) ? mc : uc;
|
|
memcpy(&tbl->macs[tbl->entries++], addrs + i, ETHER_ADDR_LEN);
|
|
}
|
|
|
|
virtio_mac_table_set(hw, uc, mc);
|
|
}
|
|
|
|
static void
|
|
virtio_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
memcpy(hw->mac_addr, mac_addr, ETHER_ADDR_LEN);
|
|
|
|
/* Use atomic update if available */
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_MAC_ADDR)) {
|
|
struct virtio_pmd_ctrl ctrl;
|
|
int len = ETHER_ADDR_LEN;
|
|
|
|
ctrl.hdr.class = VIRTIO_NET_CTRL_MAC;
|
|
ctrl.hdr.cmd = VIRTIO_NET_CTRL_MAC_ADDR_SET;
|
|
|
|
memcpy(ctrl.data, mac_addr, ETHER_ADDR_LEN);
|
|
virtio_send_command(hw->cvq, &ctrl, &len, 1);
|
|
} else if (vtpci_with_feature(hw, VIRTIO_NET_F_MAC))
|
|
virtio_set_hwaddr(hw);
|
|
}
|
|
|
|
static int
|
|
virtio_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct virtio_pmd_ctrl ctrl;
|
|
int len;
|
|
|
|
if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VLAN))
|
|
return -ENOTSUP;
|
|
|
|
ctrl.hdr.class = VIRTIO_NET_CTRL_VLAN;
|
|
ctrl.hdr.cmd = on ? VIRTIO_NET_CTRL_VLAN_ADD : VIRTIO_NET_CTRL_VLAN_DEL;
|
|
memcpy(ctrl.data, &vlan_id, sizeof(vlan_id));
|
|
len = sizeof(vlan_id);
|
|
|
|
return virtio_send_command(hw->cvq, &ctrl, &len, 1);
|
|
}
|
|
|
|
static int
|
|
virtio_negotiate_features(struct virtio_hw *hw)
|
|
{
|
|
uint64_t host_features;
|
|
|
|
/* Prepare guest_features: feature that driver wants to support */
|
|
hw->guest_features = VIRTIO_PMD_GUEST_FEATURES;
|
|
PMD_INIT_LOG(DEBUG, "guest_features before negotiate = %" PRIx64,
|
|
hw->guest_features);
|
|
|
|
/* Read device(host) feature bits */
|
|
host_features = hw->vtpci_ops->get_features(hw);
|
|
PMD_INIT_LOG(DEBUG, "host_features before negotiate = %" PRIx64,
|
|
host_features);
|
|
|
|
/*
|
|
* Negotiate features: Subset of device feature bits are written back
|
|
* guest feature bits.
|
|
*/
|
|
hw->guest_features = vtpci_negotiate_features(hw, host_features);
|
|
PMD_INIT_LOG(DEBUG, "features after negotiate = %" PRIx64,
|
|
hw->guest_features);
|
|
|
|
if (hw->modern) {
|
|
if (!vtpci_with_feature(hw, VIRTIO_F_VERSION_1)) {
|
|
PMD_INIT_LOG(ERR,
|
|
"VIRTIO_F_VERSION_1 features is not enabled.");
|
|
return -1;
|
|
}
|
|
vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_FEATURES_OK);
|
|
if (!(vtpci_get_status(hw) & VIRTIO_CONFIG_STATUS_FEATURES_OK)) {
|
|
PMD_INIT_LOG(ERR,
|
|
"failed to set FEATURES_OK status!");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Process Virtio Config changed interrupt and call the callback
|
|
* if link state changed.
|
|
*/
|
|
static void
|
|
virtio_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
|
|
void *param)
|
|
{
|
|
struct rte_eth_dev *dev = param;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
uint8_t isr;
|
|
|
|
/* Read interrupt status which clears interrupt */
|
|
isr = vtpci_isr(hw);
|
|
PMD_DRV_LOG(INFO, "interrupt status = %#x", isr);
|
|
|
|
if (rte_intr_enable(&dev->pci_dev->intr_handle) < 0)
|
|
PMD_DRV_LOG(ERR, "interrupt enable failed");
|
|
|
|
if (isr & VIRTIO_PCI_ISR_CONFIG) {
|
|
if (virtio_dev_link_update(dev, 0) == 0)
|
|
_rte_eth_dev_callback_process(dev,
|
|
RTE_ETH_EVENT_INTR_LSC);
|
|
}
|
|
|
|
}
|
|
|
|
static void
|
|
rx_func_get(struct rte_eth_dev *eth_dev)
|
|
{
|
|
struct virtio_hw *hw = eth_dev->data->dev_private;
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF))
|
|
eth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts;
|
|
else
|
|
eth_dev->rx_pkt_burst = &virtio_recv_pkts;
|
|
}
|
|
|
|
/*
|
|
* This function is based on probe() function in virtio_pci.c
|
|
* It returns 0 on success.
|
|
*/
|
|
static int
|
|
eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
|
|
{
|
|
struct virtio_hw *hw = eth_dev->data->dev_private;
|
|
struct virtio_net_config *config;
|
|
struct virtio_net_config local_config;
|
|
struct rte_pci_device *pci_dev;
|
|
int ret;
|
|
|
|
RTE_BUILD_BUG_ON(RTE_PKTMBUF_HEADROOM < sizeof(struct virtio_net_hdr));
|
|
|
|
eth_dev->dev_ops = &virtio_eth_dev_ops;
|
|
eth_dev->tx_pkt_burst = &virtio_xmit_pkts;
|
|
|
|
if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
|
|
rx_func_get(eth_dev);
|
|
return 0;
|
|
}
|
|
|
|
/* Allocate memory for storing MAC addresses */
|
|
eth_dev->data->mac_addrs = rte_zmalloc("virtio", VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN, 0);
|
|
if (eth_dev->data->mac_addrs == NULL) {
|
|
PMD_INIT_LOG(ERR,
|
|
"Failed to allocate %d bytes needed to store MAC addresses",
|
|
VIRTIO_MAX_MAC_ADDRS * ETHER_ADDR_LEN);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
pci_dev = eth_dev->pci_dev;
|
|
|
|
ret = vtpci_init(pci_dev, hw);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Reset the device although not necessary at startup */
|
|
vtpci_reset(hw);
|
|
|
|
/* Tell the host we've noticed this device. */
|
|
vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_ACK);
|
|
|
|
/* Tell the host we've known how to drive the device. */
|
|
vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_DRIVER);
|
|
if (virtio_negotiate_features(hw) < 0)
|
|
return -1;
|
|
|
|
/* If host does not support status then disable LSC */
|
|
if (!vtpci_with_feature(hw, VIRTIO_NET_F_STATUS))
|
|
pci_dev->driver->drv_flags &= ~RTE_PCI_DRV_INTR_LSC;
|
|
|
|
rte_eth_copy_pci_info(eth_dev, pci_dev);
|
|
|
|
rx_func_get(eth_dev);
|
|
|
|
/* Setting up rx_header size for the device */
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF) ||
|
|
vtpci_with_feature(hw, VIRTIO_F_VERSION_1))
|
|
hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr_mrg_rxbuf);
|
|
else
|
|
hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr);
|
|
|
|
/* Copy the permanent MAC address to: virtio_hw */
|
|
virtio_get_hwaddr(hw);
|
|
ether_addr_copy((struct ether_addr *) hw->mac_addr,
|
|
ð_dev->data->mac_addrs[0]);
|
|
PMD_INIT_LOG(DEBUG,
|
|
"PORT MAC: %02X:%02X:%02X:%02X:%02X:%02X",
|
|
hw->mac_addr[0], hw->mac_addr[1], hw->mac_addr[2],
|
|
hw->mac_addr[3], hw->mac_addr[4], hw->mac_addr[5]);
|
|
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VQ)) {
|
|
config = &local_config;
|
|
|
|
vtpci_read_dev_config(hw,
|
|
offsetof(struct virtio_net_config, mac),
|
|
&config->mac, sizeof(config->mac));
|
|
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
|
|
vtpci_read_dev_config(hw,
|
|
offsetof(struct virtio_net_config, status),
|
|
&config->status, sizeof(config->status));
|
|
} else {
|
|
PMD_INIT_LOG(DEBUG,
|
|
"VIRTIO_NET_F_STATUS is not supported");
|
|
config->status = 0;
|
|
}
|
|
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_MQ)) {
|
|
vtpci_read_dev_config(hw,
|
|
offsetof(struct virtio_net_config, max_virtqueue_pairs),
|
|
&config->max_virtqueue_pairs,
|
|
sizeof(config->max_virtqueue_pairs));
|
|
} else {
|
|
PMD_INIT_LOG(DEBUG,
|
|
"VIRTIO_NET_F_MQ is not supported");
|
|
config->max_virtqueue_pairs = 1;
|
|
}
|
|
|
|
hw->max_rx_queues =
|
|
(VIRTIO_MAX_RX_QUEUES < config->max_virtqueue_pairs) ?
|
|
VIRTIO_MAX_RX_QUEUES : config->max_virtqueue_pairs;
|
|
hw->max_tx_queues =
|
|
(VIRTIO_MAX_TX_QUEUES < config->max_virtqueue_pairs) ?
|
|
VIRTIO_MAX_TX_QUEUES : config->max_virtqueue_pairs;
|
|
|
|
virtio_dev_cq_queue_setup(eth_dev,
|
|
config->max_virtqueue_pairs * 2,
|
|
SOCKET_ID_ANY);
|
|
|
|
PMD_INIT_LOG(DEBUG, "config->max_virtqueue_pairs=%d",
|
|
config->max_virtqueue_pairs);
|
|
PMD_INIT_LOG(DEBUG, "config->status=%d", config->status);
|
|
PMD_INIT_LOG(DEBUG,
|
|
"PORT MAC: %02X:%02X:%02X:%02X:%02X:%02X",
|
|
config->mac[0], config->mac[1],
|
|
config->mac[2], config->mac[3],
|
|
config->mac[4], config->mac[5]);
|
|
} else {
|
|
hw->max_rx_queues = 1;
|
|
hw->max_tx_queues = 1;
|
|
}
|
|
|
|
PMD_INIT_LOG(DEBUG, "hw->max_rx_queues=%d hw->max_tx_queues=%d",
|
|
hw->max_rx_queues, hw->max_tx_queues);
|
|
PMD_INIT_LOG(DEBUG, "port %d vendorID=0x%x deviceID=0x%x",
|
|
eth_dev->data->port_id, pci_dev->id.vendor_id,
|
|
pci_dev->id.device_id);
|
|
|
|
/* Setup interrupt callback */
|
|
if (pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC)
|
|
rte_intr_callback_register(&pci_dev->intr_handle,
|
|
virtio_interrupt_handler, eth_dev);
|
|
|
|
virtio_dev_cq_start(eth_dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev)
|
|
{
|
|
struct rte_pci_device *pci_dev;
|
|
struct virtio_hw *hw = eth_dev->data->dev_private;
|
|
|
|
PMD_INIT_FUNC_TRACE();
|
|
|
|
if (rte_eal_process_type() == RTE_PROC_SECONDARY)
|
|
return -EPERM;
|
|
|
|
/* Close it anyway since there's no way to know if closed */
|
|
virtio_dev_close(eth_dev);
|
|
|
|
pci_dev = eth_dev->pci_dev;
|
|
|
|
eth_dev->dev_ops = NULL;
|
|
eth_dev->tx_pkt_burst = NULL;
|
|
eth_dev->rx_pkt_burst = NULL;
|
|
|
|
virtio_dev_queue_release(hw->cvq);
|
|
|
|
rte_free(eth_dev->data->mac_addrs);
|
|
eth_dev->data->mac_addrs = NULL;
|
|
|
|
/* reset interrupt callback */
|
|
if (pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC)
|
|
rte_intr_callback_unregister(&pci_dev->intr_handle,
|
|
virtio_interrupt_handler,
|
|
eth_dev);
|
|
rte_eal_pci_unmap_device(pci_dev);
|
|
|
|
PMD_INIT_LOG(DEBUG, "dev_uninit completed");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct eth_driver rte_virtio_pmd = {
|
|
.pci_drv = {
|
|
.name = "rte_virtio_pmd",
|
|
.id_table = pci_id_virtio_map,
|
|
.drv_flags = RTE_PCI_DRV_DETACHABLE,
|
|
},
|
|
.eth_dev_init = eth_virtio_dev_init,
|
|
.eth_dev_uninit = eth_virtio_dev_uninit,
|
|
.dev_private_size = sizeof(struct virtio_hw),
|
|
};
|
|
|
|
/*
|
|
* Driver initialization routine.
|
|
* Invoked once at EAL init time.
|
|
* Register itself as the [Poll Mode] Driver of PCI virtio devices.
|
|
* Returns 0 on success.
|
|
*/
|
|
static int
|
|
rte_virtio_pmd_init(const char *name __rte_unused,
|
|
const char *param __rte_unused)
|
|
{
|
|
if (rte_eal_iopl_init() != 0) {
|
|
PMD_INIT_LOG(ERR, "IOPL call failed - cannot use virtio PMD");
|
|
return -1;
|
|
}
|
|
|
|
rte_eth_driver_register(&rte_virtio_pmd);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Configure virtio device
|
|
* It returns 0 on success.
|
|
*/
|
|
static int
|
|
virtio_dev_configure(struct rte_eth_dev *dev)
|
|
{
|
|
const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct rte_pci_device *pci_dev = dev->pci_dev;
|
|
|
|
PMD_INIT_LOG(DEBUG, "configure");
|
|
|
|
if (rxmode->hw_ip_checksum) {
|
|
PMD_DRV_LOG(ERR, "HW IP checksum not supported");
|
|
return -EINVAL;
|
|
}
|
|
|
|
hw->vlan_strip = rxmode->hw_vlan_strip;
|
|
|
|
if (rxmode->hw_vlan_filter
|
|
&& !vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VLAN)) {
|
|
PMD_DRV_LOG(NOTICE,
|
|
"vlan filtering not available on this host");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
if (pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC)
|
|
if (vtpci_irq_config(hw, 0) == VIRTIO_MSI_NO_VECTOR) {
|
|
PMD_DRV_LOG(ERR, "failed to set config vector");
|
|
return -EBUSY;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
virtio_dev_start(struct rte_eth_dev *dev)
|
|
{
|
|
uint16_t nb_queues, i;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct rte_pci_device *pci_dev = dev->pci_dev;
|
|
|
|
/* check if lsc interrupt feature is enabled */
|
|
if (dev->data->dev_conf.intr_conf.lsc) {
|
|
if (!(pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC)) {
|
|
PMD_DRV_LOG(ERR, "link status not supported by host");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
if (rte_intr_enable(&dev->pci_dev->intr_handle) < 0) {
|
|
PMD_DRV_LOG(ERR, "interrupt enable failed");
|
|
return -EIO;
|
|
}
|
|
}
|
|
|
|
/* Initialize Link state */
|
|
virtio_dev_link_update(dev, 0);
|
|
|
|
/* On restart after stop do not touch queues */
|
|
if (hw->started)
|
|
return 0;
|
|
|
|
/* Do final configuration before rx/tx engine starts */
|
|
virtio_dev_rxtx_start(dev);
|
|
vtpci_reinit_complete(hw);
|
|
|
|
hw->started = 1;
|
|
|
|
/*Notify the backend
|
|
*Otherwise the tap backend might already stop its queue due to fullness.
|
|
*vhost backend will have no chance to be waked up
|
|
*/
|
|
nb_queues = dev->data->nb_rx_queues;
|
|
if (nb_queues > 1) {
|
|
if (virtio_set_multiple_queues(dev, nb_queues) != 0)
|
|
return -EINVAL;
|
|
}
|
|
|
|
PMD_INIT_LOG(DEBUG, "nb_queues=%d", nb_queues);
|
|
|
|
for (i = 0; i < nb_queues; i++)
|
|
virtqueue_notify(dev->data->rx_queues[i]);
|
|
|
|
PMD_INIT_LOG(DEBUG, "Notified backend at initialization");
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++)
|
|
VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[i]);
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++)
|
|
VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[i]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void virtio_dev_free_mbufs(struct rte_eth_dev *dev)
|
|
{
|
|
struct rte_mbuf *buf;
|
|
int i, mbuf_num = 0;
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++) {
|
|
PMD_INIT_LOG(DEBUG,
|
|
"Before freeing rxq[%d] used and unused buf", i);
|
|
VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[i]);
|
|
|
|
PMD_INIT_LOG(DEBUG, "rx_queues[%d]=%p",
|
|
i, dev->data->rx_queues[i]);
|
|
while ((buf = (struct rte_mbuf *)virtqueue_detatch_unused(
|
|
dev->data->rx_queues[i])) != NULL) {
|
|
rte_pktmbuf_free(buf);
|
|
mbuf_num++;
|
|
}
|
|
|
|
PMD_INIT_LOG(DEBUG, "free %d mbufs", mbuf_num);
|
|
PMD_INIT_LOG(DEBUG,
|
|
"After freeing rxq[%d] used and unused buf", i);
|
|
VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[i]);
|
|
}
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++) {
|
|
PMD_INIT_LOG(DEBUG,
|
|
"Before freeing txq[%d] used and unused bufs",
|
|
i);
|
|
VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[i]);
|
|
|
|
mbuf_num = 0;
|
|
while ((buf = (struct rte_mbuf *)virtqueue_detatch_unused(
|
|
dev->data->tx_queues[i])) != NULL) {
|
|
rte_pktmbuf_free(buf);
|
|
|
|
mbuf_num++;
|
|
}
|
|
|
|
PMD_INIT_LOG(DEBUG, "free %d mbufs", mbuf_num);
|
|
PMD_INIT_LOG(DEBUG,
|
|
"After freeing txq[%d] used and unused buf", i);
|
|
VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[i]);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Stop device: disable interrupt and mark link down
|
|
*/
|
|
static void
|
|
virtio_dev_stop(struct rte_eth_dev *dev)
|
|
{
|
|
struct rte_eth_link link;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
PMD_INIT_LOG(DEBUG, "stop");
|
|
|
|
hw->started = 0;
|
|
|
|
if (dev->data->dev_conf.intr_conf.lsc)
|
|
rte_intr_disable(&dev->pci_dev->intr_handle);
|
|
|
|
memset(&link, 0, sizeof(link));
|
|
virtio_dev_atomic_write_link_status(dev, &link);
|
|
}
|
|
|
|
static int
|
|
virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complete)
|
|
{
|
|
struct rte_eth_link link, old;
|
|
uint16_t status;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
memset(&link, 0, sizeof(link));
|
|
virtio_dev_atomic_read_link_status(dev, &link);
|
|
old = link;
|
|
link.link_duplex = ETH_LINK_FULL_DUPLEX;
|
|
link.link_speed = SPEED_10G;
|
|
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
|
|
PMD_INIT_LOG(DEBUG, "Get link status from hw");
|
|
vtpci_read_dev_config(hw,
|
|
offsetof(struct virtio_net_config, status),
|
|
&status, sizeof(status));
|
|
if ((status & VIRTIO_NET_S_LINK_UP) == 0) {
|
|
link.link_status = ETH_LINK_DOWN;
|
|
PMD_INIT_LOG(DEBUG, "Port %d is down",
|
|
dev->data->port_id);
|
|
} else {
|
|
link.link_status = ETH_LINK_UP;
|
|
PMD_INIT_LOG(DEBUG, "Port %d is up",
|
|
dev->data->port_id);
|
|
}
|
|
} else {
|
|
link.link_status = ETH_LINK_UP;
|
|
}
|
|
virtio_dev_atomic_write_link_status(dev, &link);
|
|
|
|
return (old.link_status == link.link_status) ? -1 : 0;
|
|
}
|
|
|
|
static void
|
|
virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
dev_info->driver_name = dev->driver->pci_drv.name;
|
|
dev_info->max_rx_queues = (uint16_t)hw->max_rx_queues;
|
|
dev_info->max_tx_queues = (uint16_t)hw->max_tx_queues;
|
|
dev_info->min_rx_bufsize = VIRTIO_MIN_RX_BUFSIZE;
|
|
dev_info->max_rx_pktlen = VIRTIO_MAX_RX_PKTLEN;
|
|
dev_info->max_mac_addrs = VIRTIO_MAX_MAC_ADDRS;
|
|
dev_info->default_txconf = (struct rte_eth_txconf) {
|
|
.txq_flags = ETH_TXQ_FLAGS_NOOFFLOADS
|
|
};
|
|
}
|
|
|
|
/*
|
|
* It enables testpmd to collect per queue stats.
|
|
*/
|
|
static int
|
|
virtio_dev_queue_stats_mapping_set(__rte_unused struct rte_eth_dev *eth_dev,
|
|
__rte_unused uint16_t queue_id, __rte_unused uint8_t stat_idx,
|
|
__rte_unused uint8_t is_rx)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static struct rte_driver rte_virtio_driver = {
|
|
.type = PMD_PDEV,
|
|
.init = rte_virtio_pmd_init,
|
|
};
|
|
|
|
PMD_REGISTER_DRIVER(rte_virtio_driver);
|