1357b4b362
This patch adds a support of VIRTIO_NET_F_SPEED_DUPLEX feature for virtio driver. There are two ways to specify speed of the link: 'speed' devarg negotiate speed from qemu via VIRTIO_NET_F_SPEED_DUPLEX The highest priority is devarg. If devarg is not specified, drivers tries to negotiate it from qemu. Signed-off-by: Ivan Dyukov <i.dyukov@samsung.com> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2593 lines
68 KiB
C
2593 lines
68 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2016 Intel Corporation
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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_driver.h>
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#include <rte_ethdev_pci.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_branch_prediction.h>
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#include <rte_pci.h>
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#include <rte_bus_pci.h>
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#include <rte_ether.h>
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#include <rte_ip.h>
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#include <rte_arp.h>
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#include <rte_common.h>
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#include <rte_errno.h>
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#include <rte_cpuflags.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 <rte_cycles.h>
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#include <rte_kvargs.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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#include "virtio_user/virtio_user_dev.h"
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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 int virtio_dev_promiscuous_enable(struct rte_eth_dev *dev);
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static int virtio_dev_promiscuous_disable(struct rte_eth_dev *dev);
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static int virtio_dev_allmulticast_enable(struct rte_eth_dev *dev);
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static int virtio_dev_allmulticast_disable(struct rte_eth_dev *dev);
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static uint32_t virtio_dev_speed_capa_get(uint32_t speed);
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static int virtio_dev_devargs_parse(struct rte_devargs *devargs,
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int *vdpa,
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uint32_t *speed);
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static int 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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int wait_to_complete);
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static int virtio_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
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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 int 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_xstat *xstats, unsigned n);
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static int virtio_dev_xstats_get_names(struct rte_eth_dev *dev,
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struct rte_eth_xstat_name *xstats_names,
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unsigned limit);
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static int 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 int virtio_mac_addr_add(struct rte_eth_dev *dev,
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struct rte_ether_addr *mac_addr,
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uint32_t index, uint32_t vmdq);
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static void virtio_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index);
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static int virtio_mac_addr_set(struct rte_eth_dev *dev,
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struct rte_ether_addr *mac_addr);
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static int virtio_intr_disable(struct rte_eth_dev *dev);
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static int virtio_dev_queue_stats_mapping_set(
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struct rte_eth_dev *eth_dev,
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uint16_t queue_id,
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uint8_t stat_idx,
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uint8_t is_rx);
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int virtio_logtype_init;
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int virtio_logtype_driver;
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static void virtio_notify_peers(struct rte_eth_dev *dev);
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static void virtio_ack_link_announce(struct rte_eth_dev *dev);
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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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{ RTE_PCI_DEVICE(VIRTIO_PCI_VENDORID, VIRTIO_PCI_LEGACY_DEVICEID_NET) },
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{ RTE_PCI_DEVICE(VIRTIO_PCI_VENDORID, VIRTIO_PCI_MODERN_DEVICEID_NET) },
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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_rxq_stat_strings[] = {
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{"good_packets", offsetof(struct virtnet_rx, stats.packets)},
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{"good_bytes", offsetof(struct virtnet_rx, stats.bytes)},
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{"errors", offsetof(struct virtnet_rx, stats.errors)},
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{"multicast_packets", offsetof(struct virtnet_rx, stats.multicast)},
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{"broadcast_packets", offsetof(struct virtnet_rx, stats.broadcast)},
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{"undersize_packets", offsetof(struct virtnet_rx, stats.size_bins[0])},
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{"size_64_packets", offsetof(struct virtnet_rx, stats.size_bins[1])},
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{"size_65_127_packets", offsetof(struct virtnet_rx, stats.size_bins[2])},
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{"size_128_255_packets", offsetof(struct virtnet_rx, stats.size_bins[3])},
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{"size_256_511_packets", offsetof(struct virtnet_rx, stats.size_bins[4])},
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{"size_512_1023_packets", offsetof(struct virtnet_rx, stats.size_bins[5])},
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{"size_1024_1518_packets", offsetof(struct virtnet_rx, stats.size_bins[6])},
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{"size_1519_max_packets", offsetof(struct virtnet_rx, stats.size_bins[7])},
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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_txq_stat_strings[] = {
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{"good_packets", offsetof(struct virtnet_tx, stats.packets)},
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{"good_bytes", offsetof(struct virtnet_tx, stats.bytes)},
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{"multicast_packets", offsetof(struct virtnet_tx, stats.multicast)},
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{"broadcast_packets", offsetof(struct virtnet_tx, stats.broadcast)},
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{"undersize_packets", offsetof(struct virtnet_tx, stats.size_bins[0])},
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{"size_64_packets", offsetof(struct virtnet_tx, stats.size_bins[1])},
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{"size_65_127_packets", offsetof(struct virtnet_tx, stats.size_bins[2])},
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{"size_128_255_packets", offsetof(struct virtnet_tx, stats.size_bins[3])},
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{"size_256_511_packets", offsetof(struct virtnet_tx, stats.size_bins[4])},
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{"size_512_1023_packets", offsetof(struct virtnet_tx, stats.size_bins[5])},
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{"size_1024_1518_packets", offsetof(struct virtnet_tx, stats.size_bins[6])},
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{"size_1519_max_packets", offsetof(struct virtnet_tx, stats.size_bins[7])},
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};
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#define VIRTIO_NB_RXQ_XSTATS (sizeof(rte_virtio_rxq_stat_strings) / \
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sizeof(rte_virtio_rxq_stat_strings[0]))
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#define VIRTIO_NB_TXQ_XSTATS (sizeof(rte_virtio_txq_stat_strings) / \
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sizeof(rte_virtio_txq_stat_strings[0]))
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struct virtio_hw_internal virtio_hw_internal[RTE_MAX_ETHPORTS];
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static struct virtio_pmd_ctrl *
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virtio_send_command_packed(struct virtnet_ctl *cvq,
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struct virtio_pmd_ctrl *ctrl,
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int *dlen, int pkt_num)
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{
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struct virtqueue *vq = cvq->vq;
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int head;
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struct vring_packed_desc *desc = vq->vq_packed.ring.desc;
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struct virtio_pmd_ctrl *result;
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uint16_t flags;
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int sum = 0;
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int nb_descs = 0;
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int k;
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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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head = vq->vq_avail_idx;
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flags = vq->vq_packed.cached_flags;
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desc[head].addr = cvq->virtio_net_hdr_mem;
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desc[head].len = sizeof(struct virtio_net_ctrl_hdr);
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vq->vq_free_cnt--;
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nb_descs++;
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if (++vq->vq_avail_idx >= vq->vq_nentries) {
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vq->vq_avail_idx -= vq->vq_nentries;
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vq->vq_packed.cached_flags ^= VRING_PACKED_DESC_F_AVAIL_USED;
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}
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for (k = 0; k < pkt_num; k++) {
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desc[vq->vq_avail_idx].addr = cvq->virtio_net_hdr_mem
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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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desc[vq->vq_avail_idx].len = dlen[k];
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desc[vq->vq_avail_idx].flags = VRING_DESC_F_NEXT |
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vq->vq_packed.cached_flags;
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sum += dlen[k];
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vq->vq_free_cnt--;
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nb_descs++;
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if (++vq->vq_avail_idx >= vq->vq_nentries) {
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vq->vq_avail_idx -= vq->vq_nentries;
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vq->vq_packed.cached_flags ^=
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VRING_PACKED_DESC_F_AVAIL_USED;
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}
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}
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desc[vq->vq_avail_idx].addr = cvq->virtio_net_hdr_mem
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+ sizeof(struct virtio_net_ctrl_hdr);
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desc[vq->vq_avail_idx].len = sizeof(ctrl->status);
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desc[vq->vq_avail_idx].flags = VRING_DESC_F_WRITE |
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vq->vq_packed.cached_flags;
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vq->vq_free_cnt--;
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nb_descs++;
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if (++vq->vq_avail_idx >= vq->vq_nentries) {
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vq->vq_avail_idx -= vq->vq_nentries;
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vq->vq_packed.cached_flags ^= VRING_PACKED_DESC_F_AVAIL_USED;
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}
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virtio_wmb(vq->hw->weak_barriers);
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desc[head].flags = VRING_DESC_F_NEXT | flags;
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virtio_wmb(vq->hw->weak_barriers);
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virtqueue_notify(vq);
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/* wait for used descriptors in virtqueue */
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while (!desc_is_used(&desc[head], vq))
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usleep(100);
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virtio_rmb(vq->hw->weak_barriers);
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/* now get used descriptors */
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vq->vq_free_cnt += nb_descs;
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vq->vq_used_cons_idx += nb_descs;
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if (vq->vq_used_cons_idx >= vq->vq_nentries) {
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vq->vq_used_cons_idx -= vq->vq_nentries;
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vq->vq_packed.used_wrap_counter ^= 1;
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}
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PMD_INIT_LOG(DEBUG, "vq->vq_free_cnt=%d\n"
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"vq->vq_avail_idx=%d\n"
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"vq->vq_used_cons_idx=%d\n"
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"vq->vq_packed.cached_flags=0x%x\n"
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"vq->vq_packed.used_wrap_counter=%d\n",
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vq->vq_free_cnt,
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vq->vq_avail_idx,
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vq->vq_used_cons_idx,
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vq->vq_packed.cached_flags,
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vq->vq_packed.used_wrap_counter);
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result = cvq->virtio_net_hdr_mz->addr;
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return result;
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}
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static struct virtio_pmd_ctrl *
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virtio_send_command_split(struct virtnet_ctl *cvq,
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struct virtio_pmd_ctrl *ctrl,
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int *dlen, int pkt_num)
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{
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struct virtio_pmd_ctrl *result;
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struct virtqueue *vq = cvq->vq;
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uint32_t head, i;
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int k, sum = 0;
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head = vq->vq_desc_head_idx;
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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_split.ring.desc[head].flags = VRING_DESC_F_NEXT;
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vq->vq_split.ring.desc[head].addr = cvq->virtio_net_hdr_mem;
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vq->vq_split.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_split.ring.desc[head].next;
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for (k = 0; k < pkt_num; k++) {
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vq->vq_split.ring.desc[i].flags = VRING_DESC_F_NEXT;
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vq->vq_split.ring.desc[i].addr = cvq->virtio_net_hdr_mem
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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_split.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_split.ring.desc[i].next;
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}
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vq->vq_split.ring.desc[i].flags = VRING_DESC_F_WRITE;
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vq->vq_split.ring.desc[i].addr = cvq->virtio_net_hdr_mem
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+ sizeof(struct virtio_net_ctrl_hdr);
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vq->vq_split.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_split.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 (VIRTQUEUE_NUSED(vq) == 0) {
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rte_rmb();
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usleep(100);
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}
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while (VIRTQUEUE_NUSED(vq)) {
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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_split.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_split.ring.desc[desc_idx].flags &
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VRING_DESC_F_NEXT) {
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desc_idx = vq->vq_split.ring.desc[desc_idx].next;
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vq->vq_free_cnt++;
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}
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vq->vq_split.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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result = cvq->virtio_net_hdr_mz->addr;
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return result;
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}
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static int
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virtio_send_command(struct virtnet_ctl *cvq, struct virtio_pmd_ctrl *ctrl,
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int *dlen, int pkt_num)
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{
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virtio_net_ctrl_ack status = ~0;
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struct virtio_pmd_ctrl *result;
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struct virtqueue *vq;
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ctrl->status = status;
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if (!cvq || !cvq->vq) {
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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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rte_spinlock_lock(&cvq->lock);
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vq = cvq->vq;
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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 < pkt_num + 2 || pkt_num < 1) {
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rte_spinlock_unlock(&cvq->lock);
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return -1;
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}
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memcpy(cvq->virtio_net_hdr_mz->addr, ctrl,
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sizeof(struct virtio_pmd_ctrl));
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if (vtpci_packed_queue(vq->hw))
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result = virtio_send_command_packed(cvq, ctrl, dlen, pkt_num);
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else
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result = virtio_send_command_split(cvq, ctrl, dlen, pkt_num);
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rte_spinlock_unlock(&cvq->lock);
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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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static void
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virtio_dev_queue_release(void *queue __rte_unused)
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{
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/* do nothing */
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}
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static uint16_t
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virtio_get_nr_vq(struct virtio_hw *hw)
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{
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uint16_t nr_vq = hw->max_queue_pairs * 2;
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if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VQ))
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nr_vq += 1;
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return nr_vq;
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}
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static void
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virtio_init_vring(struct virtqueue *vq)
|
|
{
|
|
int size = vq->vq_nentries;
|
|
uint8_t *ring_mem = vq->vq_ring_virt_mem;
|
|
|
|
PMD_INIT_FUNC_TRACE();
|
|
|
|
memset(ring_mem, 0, vq->vq_ring_size);
|
|
|
|
vq->vq_used_cons_idx = 0;
|
|
vq->vq_desc_head_idx = 0;
|
|
vq->vq_avail_idx = 0;
|
|
vq->vq_desc_tail_idx = (uint16_t)(vq->vq_nentries - 1);
|
|
vq->vq_free_cnt = vq->vq_nentries;
|
|
memset(vq->vq_descx, 0, sizeof(struct vq_desc_extra) * vq->vq_nentries);
|
|
if (vtpci_packed_queue(vq->hw)) {
|
|
vring_init_packed(&vq->vq_packed.ring, ring_mem,
|
|
VIRTIO_PCI_VRING_ALIGN, size);
|
|
vring_desc_init_packed(vq, size);
|
|
} else {
|
|
struct vring *vr = &vq->vq_split.ring;
|
|
|
|
vring_init_split(vr, ring_mem, VIRTIO_PCI_VRING_ALIGN, size);
|
|
vring_desc_init_split(vr->desc, size);
|
|
}
|
|
/*
|
|
* Disable device(host) interrupting guest
|
|
*/
|
|
virtqueue_disable_intr(vq);
|
|
}
|
|
|
|
static int
|
|
virtio_init_queue(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx)
|
|
{
|
|
char vq_name[VIRTQUEUE_MAX_NAME_SZ];
|
|
char vq_hdr_name[VIRTQUEUE_MAX_NAME_SZ];
|
|
const struct rte_memzone *mz = NULL, *hdr_mz = NULL;
|
|
unsigned int vq_size, size;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct virtnet_rx *rxvq = NULL;
|
|
struct virtnet_tx *txvq = NULL;
|
|
struct virtnet_ctl *cvq = NULL;
|
|
struct virtqueue *vq;
|
|
size_t sz_hdr_mz = 0;
|
|
void *sw_ring = NULL;
|
|
int queue_type = virtio_get_queue_type(hw, vtpci_queue_idx);
|
|
int ret;
|
|
int numa_node = dev->device->numa_node;
|
|
|
|
PMD_INIT_LOG(INFO, "setting up queue: %u on NUMA node %d",
|
|
vtpci_queue_idx, numa_node);
|
|
|
|
/*
|
|
* Read the virtqueue size from the Queue Size field
|
|
* Always power of 2 and if 0 virtqueue does not exist
|
|
*/
|
|
vq_size = VTPCI_OPS(hw)->get_queue_num(hw, vtpci_queue_idx);
|
|
PMD_INIT_LOG(DEBUG, "vq_size: %u", vq_size);
|
|
if (vq_size == 0) {
|
|
PMD_INIT_LOG(ERR, "virtqueue does not exist");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!vtpci_packed_queue(hw) && !rte_is_power_of_2(vq_size)) {
|
|
PMD_INIT_LOG(ERR, "split virtqueue size is not power of 2");
|
|
return -EINVAL;
|
|
}
|
|
|
|
snprintf(vq_name, sizeof(vq_name), "port%d_vq%d",
|
|
dev->data->port_id, vtpci_queue_idx);
|
|
|
|
size = RTE_ALIGN_CEIL(sizeof(*vq) +
|
|
vq_size * sizeof(struct vq_desc_extra),
|
|
RTE_CACHE_LINE_SIZE);
|
|
if (queue_type == VTNET_TQ) {
|
|
/*
|
|
* For each xmit packet, allocate a virtio_net_hdr
|
|
* and indirect ring elements
|
|
*/
|
|
sz_hdr_mz = vq_size * sizeof(struct virtio_tx_region);
|
|
} else if (queue_type == VTNET_CQ) {
|
|
/* Allocate a page for control vq command, data and status */
|
|
sz_hdr_mz = PAGE_SIZE;
|
|
}
|
|
|
|
vq = rte_zmalloc_socket(vq_name, size, RTE_CACHE_LINE_SIZE,
|
|
numa_node);
|
|
if (vq == NULL) {
|
|
PMD_INIT_LOG(ERR, "can not allocate vq");
|
|
return -ENOMEM;
|
|
}
|
|
hw->vqs[vtpci_queue_idx] = vq;
|
|
|
|
vq->hw = hw;
|
|
vq->vq_queue_index = vtpci_queue_idx;
|
|
vq->vq_nentries = vq_size;
|
|
if (vtpci_packed_queue(hw)) {
|
|
vq->vq_packed.used_wrap_counter = 1;
|
|
vq->vq_packed.cached_flags = VRING_PACKED_DESC_F_AVAIL;
|
|
vq->vq_packed.event_flags_shadow = 0;
|
|
if (queue_type == VTNET_RQ)
|
|
vq->vq_packed.cached_flags |= VRING_DESC_F_WRITE;
|
|
}
|
|
|
|
/*
|
|
* Reserve a memzone for vring elements
|
|
*/
|
|
size = vring_size(hw, vq_size, VIRTIO_PCI_VRING_ALIGN);
|
|
vq->vq_ring_size = RTE_ALIGN_CEIL(size, VIRTIO_PCI_VRING_ALIGN);
|
|
PMD_INIT_LOG(DEBUG, "vring_size: %d, rounded_vring_size: %d",
|
|
size, vq->vq_ring_size);
|
|
|
|
mz = rte_memzone_reserve_aligned(vq_name, vq->vq_ring_size,
|
|
numa_node, RTE_MEMZONE_IOVA_CONTIG,
|
|
VIRTIO_PCI_VRING_ALIGN);
|
|
if (mz == NULL) {
|
|
if (rte_errno == EEXIST)
|
|
mz = rte_memzone_lookup(vq_name);
|
|
if (mz == NULL) {
|
|
ret = -ENOMEM;
|
|
goto fail_q_alloc;
|
|
}
|
|
}
|
|
|
|
memset(mz->addr, 0, mz->len);
|
|
|
|
vq->vq_ring_mem = mz->iova;
|
|
vq->vq_ring_virt_mem = mz->addr;
|
|
PMD_INIT_LOG(DEBUG, "vq->vq_ring_mem: 0x%" PRIx64,
|
|
(uint64_t)mz->iova);
|
|
PMD_INIT_LOG(DEBUG, "vq->vq_ring_virt_mem: 0x%" PRIx64,
|
|
(uint64_t)(uintptr_t)mz->addr);
|
|
|
|
virtio_init_vring(vq);
|
|
|
|
if (sz_hdr_mz) {
|
|
snprintf(vq_hdr_name, sizeof(vq_hdr_name), "port%d_vq%d_hdr",
|
|
dev->data->port_id, vtpci_queue_idx);
|
|
hdr_mz = rte_memzone_reserve_aligned(vq_hdr_name, sz_hdr_mz,
|
|
numa_node, RTE_MEMZONE_IOVA_CONTIG,
|
|
RTE_CACHE_LINE_SIZE);
|
|
if (hdr_mz == NULL) {
|
|
if (rte_errno == EEXIST)
|
|
hdr_mz = rte_memzone_lookup(vq_hdr_name);
|
|
if (hdr_mz == NULL) {
|
|
ret = -ENOMEM;
|
|
goto fail_q_alloc;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (queue_type == VTNET_RQ) {
|
|
size_t sz_sw = (RTE_PMD_VIRTIO_RX_MAX_BURST + vq_size) *
|
|
sizeof(vq->sw_ring[0]);
|
|
|
|
sw_ring = rte_zmalloc_socket("sw_ring", sz_sw,
|
|
RTE_CACHE_LINE_SIZE, numa_node);
|
|
if (!sw_ring) {
|
|
PMD_INIT_LOG(ERR, "can not allocate RX soft ring");
|
|
ret = -ENOMEM;
|
|
goto fail_q_alloc;
|
|
}
|
|
|
|
vq->sw_ring = sw_ring;
|
|
rxvq = &vq->rxq;
|
|
rxvq->vq = vq;
|
|
rxvq->port_id = dev->data->port_id;
|
|
rxvq->mz = mz;
|
|
} else if (queue_type == VTNET_TQ) {
|
|
txvq = &vq->txq;
|
|
txvq->vq = vq;
|
|
txvq->port_id = dev->data->port_id;
|
|
txvq->mz = mz;
|
|
txvq->virtio_net_hdr_mz = hdr_mz;
|
|
txvq->virtio_net_hdr_mem = hdr_mz->iova;
|
|
} else if (queue_type == VTNET_CQ) {
|
|
cvq = &vq->cq;
|
|
cvq->vq = vq;
|
|
cvq->mz = mz;
|
|
cvq->virtio_net_hdr_mz = hdr_mz;
|
|
cvq->virtio_net_hdr_mem = hdr_mz->iova;
|
|
memset(cvq->virtio_net_hdr_mz->addr, 0, PAGE_SIZE);
|
|
|
|
hw->cvq = cvq;
|
|
}
|
|
|
|
/* For virtio_user case (that is when hw->virtio_user_dev is not NULL),
|
|
* we use virtual address. And we need properly set _offset_, please see
|
|
* VIRTIO_MBUF_DATA_DMA_ADDR in virtqueue.h for more information.
|
|
*/
|
|
if (!hw->virtio_user_dev)
|
|
vq->offset = offsetof(struct rte_mbuf, buf_iova);
|
|
else {
|
|
vq->vq_ring_mem = (uintptr_t)mz->addr;
|
|
vq->offset = offsetof(struct rte_mbuf, buf_addr);
|
|
if (queue_type == VTNET_TQ)
|
|
txvq->virtio_net_hdr_mem = (uintptr_t)hdr_mz->addr;
|
|
else if (queue_type == VTNET_CQ)
|
|
cvq->virtio_net_hdr_mem = (uintptr_t)hdr_mz->addr;
|
|
}
|
|
|
|
if (queue_type == VTNET_TQ) {
|
|
struct virtio_tx_region *txr;
|
|
unsigned int i;
|
|
|
|
txr = hdr_mz->addr;
|
|
memset(txr, 0, vq_size * sizeof(*txr));
|
|
for (i = 0; i < vq_size; i++) {
|
|
struct vring_desc *start_dp = txr[i].tx_indir;
|
|
|
|
/* first indirect descriptor is always the tx header */
|
|
if (!vtpci_packed_queue(hw)) {
|
|
vring_desc_init_split(start_dp,
|
|
RTE_DIM(txr[i].tx_indir));
|
|
start_dp->addr = txvq->virtio_net_hdr_mem
|
|
+ i * sizeof(*txr)
|
|
+ offsetof(struct virtio_tx_region,
|
|
tx_hdr);
|
|
start_dp->len = hw->vtnet_hdr_size;
|
|
start_dp->flags = VRING_DESC_F_NEXT;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (VTPCI_OPS(hw)->setup_queue(hw, vq) < 0) {
|
|
PMD_INIT_LOG(ERR, "setup_queue failed");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail_q_alloc:
|
|
rte_free(sw_ring);
|
|
rte_memzone_free(hdr_mz);
|
|
rte_memzone_free(mz);
|
|
rte_free(vq);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
virtio_free_queues(struct virtio_hw *hw)
|
|
{
|
|
uint16_t nr_vq = virtio_get_nr_vq(hw);
|
|
struct virtqueue *vq;
|
|
int queue_type;
|
|
uint16_t i;
|
|
|
|
if (hw->vqs == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < nr_vq; i++) {
|
|
vq = hw->vqs[i];
|
|
if (!vq)
|
|
continue;
|
|
|
|
queue_type = virtio_get_queue_type(hw, i);
|
|
if (queue_type == VTNET_RQ) {
|
|
rte_free(vq->sw_ring);
|
|
rte_memzone_free(vq->rxq.mz);
|
|
} else if (queue_type == VTNET_TQ) {
|
|
rte_memzone_free(vq->txq.mz);
|
|
rte_memzone_free(vq->txq.virtio_net_hdr_mz);
|
|
} else {
|
|
rte_memzone_free(vq->cq.mz);
|
|
rte_memzone_free(vq->cq.virtio_net_hdr_mz);
|
|
}
|
|
|
|
rte_free(vq);
|
|
hw->vqs[i] = NULL;
|
|
}
|
|
|
|
rte_free(hw->vqs);
|
|
hw->vqs = NULL;
|
|
}
|
|
|
|
static int
|
|
virtio_alloc_queues(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
uint16_t nr_vq = virtio_get_nr_vq(hw);
|
|
uint16_t i;
|
|
int ret;
|
|
|
|
hw->vqs = rte_zmalloc(NULL, sizeof(struct virtqueue *) * nr_vq, 0);
|
|
if (!hw->vqs) {
|
|
PMD_INIT_LOG(ERR, "failed to allocate vqs");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
for (i = 0; i < nr_vq; i++) {
|
|
ret = virtio_init_queue(dev, i);
|
|
if (ret < 0) {
|
|
virtio_free_queues(hw);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void virtio_queues_unbind_intr(struct rte_eth_dev *dev);
|
|
|
|
static void
|
|
virtio_dev_close(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct rte_intr_conf *intr_conf = &dev->data->dev_conf.intr_conf;
|
|
|
|
PMD_INIT_LOG(DEBUG, "virtio_dev_close");
|
|
|
|
if (!hw->opened)
|
|
return;
|
|
hw->opened = false;
|
|
|
|
/* reset the NIC */
|
|
if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
|
|
VTPCI_OPS(hw)->set_config_irq(hw, VIRTIO_MSI_NO_VECTOR);
|
|
if (intr_conf->rxq)
|
|
virtio_queues_unbind_intr(dev);
|
|
|
|
if (intr_conf->lsc || intr_conf->rxq) {
|
|
virtio_intr_disable(dev);
|
|
rte_intr_efd_disable(dev->intr_handle);
|
|
rte_free(dev->intr_handle->intr_vec);
|
|
dev->intr_handle->intr_vec = NULL;
|
|
}
|
|
|
|
vtpci_reset(hw);
|
|
virtio_dev_free_mbufs(dev);
|
|
virtio_free_queues(hw);
|
|
|
|
#ifdef RTE_VIRTIO_USER
|
|
if (hw->virtio_user_dev)
|
|
virtio_user_dev_uninit(hw->virtio_user_dev);
|
|
else
|
|
#endif
|
|
if (dev->device) {
|
|
rte_pci_unmap_device(RTE_ETH_DEV_TO_PCI(dev));
|
|
if (!hw->modern)
|
|
rte_pci_ioport_unmap(VTPCI_IO(hw));
|
|
}
|
|
}
|
|
|
|
static int
|
|
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");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
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");
|
|
return -EAGAIN;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
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");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
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");
|
|
return -EAGAIN;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
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");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
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");
|
|
return -EAGAIN;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
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");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
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");
|
|
return -EAGAIN;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define VLAN_TAG_LEN 4 /* 802.3ac tag (not DMA'd) */
|
|
static int
|
|
virtio_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
uint32_t ether_hdr_len = RTE_ETHER_HDR_LEN + VLAN_TAG_LEN +
|
|
hw->vtnet_hdr_size;
|
|
uint32_t frame_size = mtu + ether_hdr_len;
|
|
uint32_t max_frame_size = hw->max_mtu + ether_hdr_len;
|
|
|
|
max_frame_size = RTE_MIN(max_frame_size, VIRTIO_MAX_RX_PKTLEN);
|
|
|
|
if (mtu < RTE_ETHER_MIN_MTU || frame_size > max_frame_size) {
|
|
PMD_INIT_LOG(ERR, "MTU should be between %d and %d",
|
|
RTE_ETHER_MIN_MTU, max_frame_size - ether_hdr_len);
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
virtio_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct virtnet_rx *rxvq = dev->data->rx_queues[queue_id];
|
|
struct virtqueue *vq = rxvq->vq;
|
|
|
|
virtqueue_enable_intr(vq);
|
|
virtio_mb(hw->weak_barriers);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
virtio_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
|
|
{
|
|
struct virtnet_rx *rxvq = dev->data->rx_queues[queue_id];
|
|
struct virtqueue *vq = rxvq->vq;
|
|
|
|
virtqueue_disable_intr(vq);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* 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,
|
|
.mtu_set = virtio_mtu_set,
|
|
.dev_infos_get = virtio_dev_info_get,
|
|
.stats_get = virtio_dev_stats_get,
|
|
.xstats_get = virtio_dev_xstats_get,
|
|
.xstats_get_names = virtio_dev_xstats_get_names,
|
|
.stats_reset = virtio_dev_stats_reset,
|
|
.xstats_reset = virtio_dev_stats_reset,
|
|
.link_update = virtio_dev_link_update,
|
|
.vlan_offload_set = virtio_dev_vlan_offload_set,
|
|
.rx_queue_setup = virtio_dev_rx_queue_setup,
|
|
.rx_queue_intr_enable = virtio_dev_rx_queue_intr_enable,
|
|
.rx_queue_intr_disable = virtio_dev_rx_queue_intr_disable,
|
|
.rx_queue_release = virtio_dev_queue_release,
|
|
.rx_descriptor_done = virtio_dev_rx_queue_done,
|
|
.tx_queue_setup = virtio_dev_tx_queue_setup,
|
|
.tx_queue_release = virtio_dev_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,
|
|
};
|
|
|
|
/*
|
|
* dev_ops for virtio-user in secondary processes, as we just have
|
|
* some limited supports currently.
|
|
*/
|
|
const struct eth_dev_ops virtio_user_secondary_eth_dev_ops = {
|
|
.dev_infos_get = virtio_dev_info_get,
|
|
.stats_get = virtio_dev_stats_get,
|
|
.xstats_get = virtio_dev_xstats_get,
|
|
.xstats_get_names = virtio_dev_xstats_get_names,
|
|
.stats_reset = virtio_dev_stats_reset,
|
|
.xstats_reset = virtio_dev_stats_reset,
|
|
/* collect stats per queue */
|
|
.queue_stats_mapping_set = virtio_dev_queue_stats_mapping_set,
|
|
};
|
|
|
|
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 virtnet_tx *txvq = dev->data->tx_queues[i];
|
|
if (txvq == NULL)
|
|
continue;
|
|
|
|
stats->opackets += txvq->stats.packets;
|
|
stats->obytes += txvq->stats.bytes;
|
|
|
|
if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
|
|
stats->q_opackets[i] = txvq->stats.packets;
|
|
stats->q_obytes[i] = txvq->stats.bytes;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++) {
|
|
const struct virtnet_rx *rxvq = dev->data->rx_queues[i];
|
|
if (rxvq == NULL)
|
|
continue;
|
|
|
|
stats->ipackets += rxvq->stats.packets;
|
|
stats->ibytes += rxvq->stats.bytes;
|
|
stats->ierrors += rxvq->stats.errors;
|
|
|
|
if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
|
|
stats->q_ipackets[i] = rxvq->stats.packets;
|
|
stats->q_ibytes[i] = rxvq->stats.bytes;
|
|
}
|
|
}
|
|
|
|
stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed;
|
|
}
|
|
|
|
static int virtio_dev_xstats_get_names(struct rte_eth_dev *dev,
|
|
struct rte_eth_xstat_name *xstats_names,
|
|
__rte_unused unsigned limit)
|
|
{
|
|
unsigned i;
|
|
unsigned count = 0;
|
|
unsigned t;
|
|
|
|
unsigned nstats = dev->data->nb_tx_queues * VIRTIO_NB_TXQ_XSTATS +
|
|
dev->data->nb_rx_queues * VIRTIO_NB_RXQ_XSTATS;
|
|
|
|
if (xstats_names != NULL) {
|
|
/* Note: limit checked in rte_eth_xstats_names() */
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++) {
|
|
struct virtnet_rx *rxvq = dev->data->rx_queues[i];
|
|
if (rxvq == NULL)
|
|
continue;
|
|
for (t = 0; t < VIRTIO_NB_RXQ_XSTATS; t++) {
|
|
snprintf(xstats_names[count].name,
|
|
sizeof(xstats_names[count].name),
|
|
"rx_q%u_%s", i,
|
|
rte_virtio_rxq_stat_strings[t].name);
|
|
count++;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++) {
|
|
struct virtnet_tx *txvq = dev->data->tx_queues[i];
|
|
if (txvq == NULL)
|
|
continue;
|
|
for (t = 0; t < VIRTIO_NB_TXQ_XSTATS; t++) {
|
|
snprintf(xstats_names[count].name,
|
|
sizeof(xstats_names[count].name),
|
|
"tx_q%u_%s", i,
|
|
rte_virtio_txq_stat_strings[t].name);
|
|
count++;
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
return nstats;
|
|
}
|
|
|
|
static int
|
|
virtio_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
|
|
unsigned n)
|
|
{
|
|
unsigned i;
|
|
unsigned count = 0;
|
|
|
|
unsigned nstats = dev->data->nb_tx_queues * VIRTIO_NB_TXQ_XSTATS +
|
|
dev->data->nb_rx_queues * VIRTIO_NB_RXQ_XSTATS;
|
|
|
|
if (n < nstats)
|
|
return nstats;
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++) {
|
|
struct virtnet_rx *rxvq = dev->data->rx_queues[i];
|
|
|
|
if (rxvq == NULL)
|
|
continue;
|
|
|
|
unsigned t;
|
|
|
|
for (t = 0; t < VIRTIO_NB_RXQ_XSTATS; t++) {
|
|
xstats[count].value = *(uint64_t *)(((char *)rxvq) +
|
|
rte_virtio_rxq_stat_strings[t].offset);
|
|
xstats[count].id = count;
|
|
count++;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++) {
|
|
struct virtnet_tx *txvq = dev->data->tx_queues[i];
|
|
|
|
if (txvq == NULL)
|
|
continue;
|
|
|
|
unsigned t;
|
|
|
|
for (t = 0; t < VIRTIO_NB_TXQ_XSTATS; t++) {
|
|
xstats[count].value = *(uint64_t *)(((char *)txvq) +
|
|
rte_virtio_txq_stat_strings[t].offset);
|
|
xstats[count].id = count;
|
|
count++;
|
|
}
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static int
|
|
virtio_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
|
|
{
|
|
virtio_update_stats(dev, stats);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
virtio_dev_stats_reset(struct rte_eth_dev *dev)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++) {
|
|
struct virtnet_tx *txvq = dev->data->tx_queues[i];
|
|
if (txvq == NULL)
|
|
continue;
|
|
|
|
txvq->stats.packets = 0;
|
|
txvq->stats.bytes = 0;
|
|
txvq->stats.multicast = 0;
|
|
txvq->stats.broadcast = 0;
|
|
memset(txvq->stats.size_bins, 0,
|
|
sizeof(txvq->stats.size_bins[0]) * 8);
|
|
}
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++) {
|
|
struct virtnet_rx *rxvq = dev->data->rx_queues[i];
|
|
if (rxvq == NULL)
|
|
continue;
|
|
|
|
rxvq->stats.packets = 0;
|
|
rxvq->stats.bytes = 0;
|
|
rxvq->stats.errors = 0;
|
|
rxvq->stats.multicast = 0;
|
|
rxvq->stats.broadcast = 0;
|
|
memset(rxvq->stats.size_bins, 0,
|
|
sizeof(rxvq->stats.size_bins[0]) * 8);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
virtio_set_hwaddr(struct virtio_hw *hw)
|
|
{
|
|
vtpci_write_dev_config(hw,
|
|
offsetof(struct virtio_net_config, mac),
|
|
&hw->mac_addr, RTE_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, RTE_ETHER_ADDR_LEN);
|
|
} else {
|
|
rte_eth_random_addr(&hw->mac_addr[0]);
|
|
virtio_set_hwaddr(hw);
|
|
}
|
|
}
|
|
|
|
static int
|
|
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");
|
|
return -1;
|
|
}
|
|
|
|
ctrl.hdr.class = VIRTIO_NET_CTRL_MAC;
|
|
ctrl.hdr.cmd = VIRTIO_NET_CTRL_MAC_TABLE_SET;
|
|
|
|
len[0] = uc->entries * RTE_ETHER_ADDR_LEN + sizeof(uc->entries);
|
|
memcpy(ctrl.data, uc, len[0]);
|
|
|
|
len[1] = mc->entries * RTE_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);
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
virtio_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
|
|
uint32_t index, uint32_t vmdq __rte_unused)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
const struct rte_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 -EINVAL;
|
|
}
|
|
|
|
uc = alloca(VIRTIO_MAX_MAC_ADDRS * RTE_ETHER_ADDR_LEN +
|
|
sizeof(uc->entries));
|
|
uc->entries = 0;
|
|
mc = alloca(VIRTIO_MAX_MAC_ADDRS * RTE_ETHER_ADDR_LEN +
|
|
sizeof(mc->entries));
|
|
mc->entries = 0;
|
|
|
|
for (i = 0; i < VIRTIO_MAX_MAC_ADDRS; i++) {
|
|
const struct rte_ether_addr *addr
|
|
= (i == index) ? mac_addr : addrs + i;
|
|
struct virtio_net_ctrl_mac *tbl
|
|
= rte_is_multicast_ether_addr(addr) ? mc : uc;
|
|
|
|
memcpy(&tbl->macs[tbl->entries++], addr, RTE_ETHER_ADDR_LEN);
|
|
}
|
|
|
|
return 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 rte_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 * RTE_ETHER_ADDR_LEN +
|
|
sizeof(uc->entries));
|
|
uc->entries = 0;
|
|
mc = alloca(VIRTIO_MAX_MAC_ADDRS * RTE_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 || rte_is_zero_ether_addr(addrs + i))
|
|
continue;
|
|
|
|
tbl = rte_is_multicast_ether_addr(addrs + i) ? mc : uc;
|
|
memcpy(&tbl->macs[tbl->entries++], addrs + i,
|
|
RTE_ETHER_ADDR_LEN);
|
|
}
|
|
|
|
virtio_mac_table_set(hw, uc, mc);
|
|
}
|
|
|
|
static int
|
|
virtio_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
memcpy(hw->mac_addr, mac_addr, RTE_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 = RTE_ETHER_ADDR_LEN;
|
|
|
|
ctrl.hdr.class = VIRTIO_NET_CTRL_MAC;
|
|
ctrl.hdr.cmd = VIRTIO_NET_CTRL_MAC_ADDR_SET;
|
|
|
|
memcpy(ctrl.data, mac_addr, RTE_ETHER_ADDR_LEN);
|
|
return virtio_send_command(hw->cvq, &ctrl, &len, 1);
|
|
}
|
|
|
|
if (!vtpci_with_feature(hw, VIRTIO_NET_F_MAC))
|
|
return -ENOTSUP;
|
|
|
|
virtio_set_hwaddr(hw);
|
|
return 0;
|
|
}
|
|
|
|
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_intr_unmask(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
if (rte_intr_ack(dev->intr_handle) < 0)
|
|
return -1;
|
|
|
|
if (!hw->virtio_user_dev)
|
|
hw->use_msix = vtpci_msix_detect(RTE_ETH_DEV_TO_PCI(dev));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
virtio_intr_enable(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
if (rte_intr_enable(dev->intr_handle) < 0)
|
|
return -1;
|
|
|
|
if (!hw->virtio_user_dev)
|
|
hw->use_msix = vtpci_msix_detect(RTE_ETH_DEV_TO_PCI(dev));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
virtio_intr_disable(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
if (rte_intr_disable(dev->intr_handle) < 0)
|
|
return -1;
|
|
|
|
if (!hw->virtio_user_dev)
|
|
hw->use_msix = vtpci_msix_detect(RTE_ETH_DEV_TO_PCI(dev));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
virtio_negotiate_features(struct virtio_hw *hw, uint64_t req_features)
|
|
{
|
|
uint64_t host_features;
|
|
|
|
/* Prepare guest_features: feature that driver wants to support */
|
|
PMD_INIT_LOG(DEBUG, "guest_features before negotiate = %" PRIx64,
|
|
req_features);
|
|
|
|
/* Read device(host) feature bits */
|
|
host_features = VTPCI_OPS(hw)->get_features(hw);
|
|
PMD_INIT_LOG(DEBUG, "host_features before negotiate = %" PRIx64,
|
|
host_features);
|
|
|
|
/* If supported, ensure MTU value is valid before acknowledging it. */
|
|
if (host_features & req_features & (1ULL << VIRTIO_NET_F_MTU)) {
|
|
struct virtio_net_config config;
|
|
|
|
vtpci_read_dev_config(hw,
|
|
offsetof(struct virtio_net_config, mtu),
|
|
&config.mtu, sizeof(config.mtu));
|
|
|
|
if (config.mtu < RTE_ETHER_MIN_MTU)
|
|
req_features &= ~(1ULL << VIRTIO_NET_F_MTU);
|
|
}
|
|
|
|
/*
|
|
* Negotiate features: Subset of device feature bits are written back
|
|
* guest feature bits.
|
|
*/
|
|
hw->guest_features = req_features;
|
|
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;
|
|
}
|
|
}
|
|
|
|
hw->req_guest_features = req_features;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
virtio_dev_pause(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
rte_spinlock_lock(&hw->state_lock);
|
|
|
|
if (hw->started == 0) {
|
|
/* Device is just stopped. */
|
|
rte_spinlock_unlock(&hw->state_lock);
|
|
return -1;
|
|
}
|
|
hw->started = 0;
|
|
/*
|
|
* Prevent the worker threads from touching queues to avoid contention,
|
|
* 1 ms should be enough for the ongoing Tx function to finish.
|
|
*/
|
|
rte_delay_ms(1);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Recover hw state to let the worker threads continue.
|
|
*/
|
|
void
|
|
virtio_dev_resume(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
hw->started = 1;
|
|
rte_spinlock_unlock(&hw->state_lock);
|
|
}
|
|
|
|
/*
|
|
* Should be called only after device is paused.
|
|
*/
|
|
int
|
|
virtio_inject_pkts(struct rte_eth_dev *dev, struct rte_mbuf **tx_pkts,
|
|
int nb_pkts)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct virtnet_tx *txvq = dev->data->tx_queues[0];
|
|
int ret;
|
|
|
|
hw->inject_pkts = tx_pkts;
|
|
ret = dev->tx_pkt_burst(txvq, tx_pkts, nb_pkts);
|
|
hw->inject_pkts = NULL;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
virtio_notify_peers(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct virtnet_rx *rxvq;
|
|
struct rte_mbuf *rarp_mbuf;
|
|
|
|
if (!dev->data->rx_queues)
|
|
return;
|
|
|
|
rxvq = dev->data->rx_queues[0];
|
|
if (!rxvq)
|
|
return;
|
|
|
|
rarp_mbuf = rte_net_make_rarp_packet(rxvq->mpool,
|
|
(struct rte_ether_addr *)hw->mac_addr);
|
|
if (rarp_mbuf == NULL) {
|
|
PMD_DRV_LOG(ERR, "failed to make RARP packet.");
|
|
return;
|
|
}
|
|
|
|
/* If virtio port just stopped, no need to send RARP */
|
|
if (virtio_dev_pause(dev) < 0) {
|
|
rte_pktmbuf_free(rarp_mbuf);
|
|
return;
|
|
}
|
|
|
|
virtio_inject_pkts(dev, &rarp_mbuf, 1);
|
|
virtio_dev_resume(dev);
|
|
}
|
|
|
|
static void
|
|
virtio_ack_link_announce(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct virtio_pmd_ctrl ctrl;
|
|
|
|
ctrl.hdr.class = VIRTIO_NET_CTRL_ANNOUNCE;
|
|
ctrl.hdr.cmd = VIRTIO_NET_CTRL_ANNOUNCE_ACK;
|
|
|
|
virtio_send_command(hw->cvq, &ctrl, NULL, 0);
|
|
}
|
|
|
|
/*
|
|
* Process virtio config changed interrupt. Call the callback
|
|
* if link state changed, generate gratuitous RARP packet if
|
|
* the status indicates an ANNOUNCE.
|
|
*/
|
|
void
|
|
virtio_interrupt_handler(void *param)
|
|
{
|
|
struct rte_eth_dev *dev = param;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
uint8_t isr;
|
|
uint16_t status;
|
|
|
|
/* Read interrupt status which clears interrupt */
|
|
isr = vtpci_isr(hw);
|
|
PMD_DRV_LOG(INFO, "interrupt status = %#x", isr);
|
|
|
|
if (virtio_intr_unmask(dev) < 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,
|
|
NULL);
|
|
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
|
|
vtpci_read_dev_config(hw,
|
|
offsetof(struct virtio_net_config, status),
|
|
&status, sizeof(status));
|
|
if (status & VIRTIO_NET_S_ANNOUNCE) {
|
|
virtio_notify_peers(dev);
|
|
if (hw->cvq)
|
|
virtio_ack_link_announce(dev);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* set rx and tx handlers according to what is supported */
|
|
static void
|
|
set_rxtx_funcs(struct rte_eth_dev *eth_dev)
|
|
{
|
|
struct virtio_hw *hw = eth_dev->data->dev_private;
|
|
|
|
eth_dev->tx_pkt_prepare = virtio_xmit_pkts_prepare;
|
|
if (vtpci_packed_queue(hw)) {
|
|
PMD_INIT_LOG(INFO,
|
|
"virtio: using packed ring %s Tx path on port %u",
|
|
hw->use_inorder_tx ? "inorder" : "standard",
|
|
eth_dev->data->port_id);
|
|
eth_dev->tx_pkt_burst = virtio_xmit_pkts_packed;
|
|
} else {
|
|
if (hw->use_inorder_tx) {
|
|
PMD_INIT_LOG(INFO, "virtio: using inorder Tx path on port %u",
|
|
eth_dev->data->port_id);
|
|
eth_dev->tx_pkt_burst = virtio_xmit_pkts_inorder;
|
|
} else {
|
|
PMD_INIT_LOG(INFO, "virtio: using standard Tx path on port %u",
|
|
eth_dev->data->port_id);
|
|
eth_dev->tx_pkt_burst = virtio_xmit_pkts;
|
|
}
|
|
}
|
|
|
|
if (vtpci_packed_queue(hw)) {
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {
|
|
PMD_INIT_LOG(INFO,
|
|
"virtio: using packed ring mergeable buffer Rx path on port %u",
|
|
eth_dev->data->port_id);
|
|
eth_dev->rx_pkt_burst =
|
|
&virtio_recv_mergeable_pkts_packed;
|
|
} else {
|
|
PMD_INIT_LOG(INFO,
|
|
"virtio: using packed ring standard Rx path on port %u",
|
|
eth_dev->data->port_id);
|
|
eth_dev->rx_pkt_burst = &virtio_recv_pkts_packed;
|
|
}
|
|
} else {
|
|
if (hw->use_simple_rx) {
|
|
PMD_INIT_LOG(INFO, "virtio: using simple Rx path on port %u",
|
|
eth_dev->data->port_id);
|
|
eth_dev->rx_pkt_burst = virtio_recv_pkts_vec;
|
|
} else if (hw->use_inorder_rx) {
|
|
PMD_INIT_LOG(INFO,
|
|
"virtio: using inorder Rx path on port %u",
|
|
eth_dev->data->port_id);
|
|
eth_dev->rx_pkt_burst = &virtio_recv_pkts_inorder;
|
|
} else if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {
|
|
PMD_INIT_LOG(INFO,
|
|
"virtio: using mergeable buffer Rx path on port %u",
|
|
eth_dev->data->port_id);
|
|
eth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts;
|
|
} else {
|
|
PMD_INIT_LOG(INFO, "virtio: using standard Rx path on port %u",
|
|
eth_dev->data->port_id);
|
|
eth_dev->rx_pkt_burst = &virtio_recv_pkts;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/* Only support 1:1 queue/interrupt mapping so far.
|
|
* TODO: support n:1 queue/interrupt mapping when there are limited number of
|
|
* interrupt vectors (<N+1).
|
|
*/
|
|
static int
|
|
virtio_queues_bind_intr(struct rte_eth_dev *dev)
|
|
{
|
|
uint32_t i;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
PMD_INIT_LOG(INFO, "queue/interrupt binding");
|
|
for (i = 0; i < dev->data->nb_rx_queues; ++i) {
|
|
dev->intr_handle->intr_vec[i] = i + 1;
|
|
if (VTPCI_OPS(hw)->set_queue_irq(hw, hw->vqs[i * 2], i + 1) ==
|
|
VIRTIO_MSI_NO_VECTOR) {
|
|
PMD_DRV_LOG(ERR, "failed to set queue vector");
|
|
return -EBUSY;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
virtio_queues_unbind_intr(struct rte_eth_dev *dev)
|
|
{
|
|
uint32_t i;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
PMD_INIT_LOG(INFO, "queue/interrupt unbinding");
|
|
for (i = 0; i < dev->data->nb_rx_queues; ++i)
|
|
VTPCI_OPS(hw)->set_queue_irq(hw,
|
|
hw->vqs[i * VTNET_CQ],
|
|
VIRTIO_MSI_NO_VECTOR);
|
|
}
|
|
|
|
static int
|
|
virtio_configure_intr(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
if (!rte_intr_cap_multiple(dev->intr_handle)) {
|
|
PMD_INIT_LOG(ERR, "Multiple intr vector not supported");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
if (rte_intr_efd_enable(dev->intr_handle, dev->data->nb_rx_queues)) {
|
|
PMD_INIT_LOG(ERR, "Fail to create eventfd");
|
|
return -1;
|
|
}
|
|
|
|
if (!dev->intr_handle->intr_vec) {
|
|
dev->intr_handle->intr_vec =
|
|
rte_zmalloc("intr_vec",
|
|
hw->max_queue_pairs * sizeof(int), 0);
|
|
if (!dev->intr_handle->intr_vec) {
|
|
PMD_INIT_LOG(ERR, "Failed to allocate %u rxq vectors",
|
|
hw->max_queue_pairs);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
/* Re-register callback to update max_intr */
|
|
rte_intr_callback_unregister(dev->intr_handle,
|
|
virtio_interrupt_handler,
|
|
dev);
|
|
rte_intr_callback_register(dev->intr_handle,
|
|
virtio_interrupt_handler,
|
|
dev);
|
|
|
|
/* DO NOT try to remove this! This function will enable msix, or QEMU
|
|
* will encounter SIGSEGV when DRIVER_OK is sent.
|
|
* And for legacy devices, this should be done before queue/vec binding
|
|
* to change the config size from 20 to 24, or VIRTIO_MSI_QUEUE_VECTOR
|
|
* (22) will be ignored.
|
|
*/
|
|
if (virtio_intr_enable(dev) < 0) {
|
|
PMD_DRV_LOG(ERR, "interrupt enable failed");
|
|
return -1;
|
|
}
|
|
|
|
if (virtio_queues_bind_intr(dev) < 0) {
|
|
PMD_INIT_LOG(ERR, "Failed to bind queue/interrupt");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#define SPEED_UNKNOWN 0xffffffff
|
|
#define DUPLEX_UNKNOWN 0xff
|
|
/* reset device and renegotiate features if needed */
|
|
static int
|
|
virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
|
|
{
|
|
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 = NULL;
|
|
int ret;
|
|
|
|
/* Reset the device although not necessary at startup */
|
|
vtpci_reset(hw);
|
|
|
|
if (hw->vqs) {
|
|
virtio_dev_free_mbufs(eth_dev);
|
|
virtio_free_queues(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, req_features) < 0)
|
|
return -1;
|
|
|
|
hw->weak_barriers = !vtpci_with_feature(hw, VIRTIO_F_ORDER_PLATFORM);
|
|
|
|
if (!hw->virtio_user_dev)
|
|
pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
|
|
|
|
/* If host does not support both status and MSI-X then disable LSC */
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS) &&
|
|
hw->use_msix != VIRTIO_MSIX_NONE)
|
|
eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
|
|
else
|
|
eth_dev->data->dev_flags &= ~RTE_ETH_DEV_INTR_LSC;
|
|
|
|
/* 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) ||
|
|
vtpci_with_feature(hw, VIRTIO_F_RING_PACKED))
|
|
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);
|
|
rte_ether_addr_copy((struct rte_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 (hw->speed == SPEED_UNKNOWN) {
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_SPEED_DUPLEX)) {
|
|
config = &local_config;
|
|
vtpci_read_dev_config(hw,
|
|
offsetof(struct virtio_net_config, speed),
|
|
&config->speed, sizeof(config->speed));
|
|
vtpci_read_dev_config(hw,
|
|
offsetof(struct virtio_net_config, duplex),
|
|
&config->duplex, sizeof(config->duplex));
|
|
hw->speed = config->speed;
|
|
hw->duplex = config->duplex;
|
|
}
|
|
}
|
|
if (hw->speed == SPEED_UNKNOWN)
|
|
hw->speed = ETH_SPEED_NUM_10G;
|
|
if (hw->duplex == DUPLEX_UNKNOWN)
|
|
hw->duplex = ETH_LINK_FULL_DUPLEX;
|
|
PMD_INIT_LOG(DEBUG, "link speed = %d, duplex = %d",
|
|
hw->speed, hw->duplex);
|
|
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_queue_pairs = config->max_virtqueue_pairs;
|
|
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_MTU)) {
|
|
vtpci_read_dev_config(hw,
|
|
offsetof(struct virtio_net_config, mtu),
|
|
&config->mtu,
|
|
sizeof(config->mtu));
|
|
|
|
/*
|
|
* MTU value has already been checked at negotiation
|
|
* time, but check again in case it has changed since
|
|
* then, which should not happen.
|
|
*/
|
|
if (config->mtu < RTE_ETHER_MIN_MTU) {
|
|
PMD_INIT_LOG(ERR, "invalid max MTU value (%u)",
|
|
config->mtu);
|
|
return -1;
|
|
}
|
|
|
|
hw->max_mtu = config->mtu;
|
|
/* Set initial MTU to maximum one supported by vhost */
|
|
eth_dev->data->mtu = config->mtu;
|
|
|
|
} else {
|
|
hw->max_mtu = VIRTIO_MAX_RX_PKTLEN - RTE_ETHER_HDR_LEN -
|
|
VLAN_TAG_LEN - hw->vtnet_hdr_size;
|
|
}
|
|
|
|
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 {
|
|
PMD_INIT_LOG(DEBUG, "config->max_virtqueue_pairs=1");
|
|
hw->max_queue_pairs = 1;
|
|
hw->max_mtu = VIRTIO_MAX_RX_PKTLEN - RTE_ETHER_HDR_LEN -
|
|
VLAN_TAG_LEN - hw->vtnet_hdr_size;
|
|
}
|
|
|
|
ret = virtio_alloc_queues(eth_dev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (eth_dev->data->dev_conf.intr_conf.rxq) {
|
|
if (virtio_configure_intr(eth_dev) < 0) {
|
|
PMD_INIT_LOG(ERR, "failed to configure interrupt");
|
|
virtio_free_queues(hw);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
vtpci_reinit_complete(hw);
|
|
|
|
if (pci_dev)
|
|
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);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Remap the PCI device again (IO port map for legacy device and
|
|
* memory map for modern device), so that the secondary process
|
|
* could have the PCI initiated correctly.
|
|
*/
|
|
static int
|
|
virtio_remap_pci(struct rte_pci_device *pci_dev, struct virtio_hw *hw)
|
|
{
|
|
if (hw->modern) {
|
|
/*
|
|
* We don't have to re-parse the PCI config space, since
|
|
* rte_pci_map_device() makes sure the mapped address
|
|
* in secondary process would equal to the one mapped in
|
|
* the primary process: error will be returned if that
|
|
* requirement is not met.
|
|
*
|
|
* That said, we could simply reuse all cap pointers
|
|
* (such as dev_cfg, common_cfg, etc.) parsed from the
|
|
* primary process, which is stored in shared memory.
|
|
*/
|
|
if (rte_pci_map_device(pci_dev)) {
|
|
PMD_INIT_LOG(DEBUG, "failed to map pci device!");
|
|
return -1;
|
|
}
|
|
} else {
|
|
if (rte_pci_ioport_map(pci_dev, 0, VTPCI_IO(hw)) < 0)
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
virtio_set_vtpci_ops(struct virtio_hw *hw)
|
|
{
|
|
#ifdef RTE_VIRTIO_USER
|
|
if (hw->virtio_user_dev)
|
|
VTPCI_OPS(hw) = &virtio_user_ops;
|
|
else
|
|
#endif
|
|
if (hw->modern)
|
|
VTPCI_OPS(hw) = &modern_ops;
|
|
else
|
|
VTPCI_OPS(hw) = &legacy_ops;
|
|
}
|
|
|
|
/*
|
|
* This function is based on probe() function in virtio_pci.c
|
|
* It returns 0 on success.
|
|
*/
|
|
int
|
|
eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
|
|
{
|
|
struct virtio_hw *hw = eth_dev->data->dev_private;
|
|
uint32_t speed = SPEED_UNKNOWN;
|
|
int ret;
|
|
|
|
if (sizeof(struct virtio_net_hdr_mrg_rxbuf) > RTE_PKTMBUF_HEADROOM) {
|
|
PMD_INIT_LOG(ERR,
|
|
"Not sufficient headroom required = %d, avail = %d",
|
|
(int)sizeof(struct virtio_net_hdr_mrg_rxbuf),
|
|
RTE_PKTMBUF_HEADROOM);
|
|
|
|
return -1;
|
|
}
|
|
|
|
eth_dev->dev_ops = &virtio_eth_dev_ops;
|
|
|
|
if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
|
|
if (!hw->virtio_user_dev) {
|
|
ret = virtio_remap_pci(RTE_ETH_DEV_TO_PCI(eth_dev), hw);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
virtio_set_vtpci_ops(hw);
|
|
set_rxtx_funcs(eth_dev);
|
|
|
|
return 0;
|
|
}
|
|
ret = virtio_dev_devargs_parse(eth_dev->device->devargs,
|
|
NULL, &speed);
|
|
if (ret < 0)
|
|
return ret;
|
|
hw->speed = speed;
|
|
/*
|
|
* Pass the information to the rte_eth_dev_close() that it should also
|
|
* release the private port resources.
|
|
*/
|
|
eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
|
|
|
|
/* Allocate memory for storing MAC addresses */
|
|
eth_dev->data->mac_addrs = rte_zmalloc("virtio",
|
|
VIRTIO_MAX_MAC_ADDRS * RTE_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 * RTE_ETHER_ADDR_LEN);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
hw->port_id = eth_dev->data->port_id;
|
|
/* For virtio_user case the hw->virtio_user_dev is populated by
|
|
* virtio_user_eth_dev_alloc() before eth_virtio_dev_init() is called.
|
|
*/
|
|
if (!hw->virtio_user_dev) {
|
|
ret = vtpci_init(RTE_ETH_DEV_TO_PCI(eth_dev), hw);
|
|
if (ret)
|
|
goto err_vtpci_init;
|
|
}
|
|
|
|
rte_spinlock_init(&hw->state_lock);
|
|
|
|
/* reset device and negotiate default features */
|
|
ret = virtio_init_device(eth_dev, VIRTIO_PMD_DEFAULT_GUEST_FEATURES);
|
|
if (ret < 0)
|
|
goto err_virtio_init;
|
|
|
|
hw->opened = true;
|
|
|
|
return 0;
|
|
|
|
err_virtio_init:
|
|
if (!hw->virtio_user_dev) {
|
|
rte_pci_unmap_device(RTE_ETH_DEV_TO_PCI(eth_dev));
|
|
if (!hw->modern)
|
|
rte_pci_ioport_unmap(VTPCI_IO(hw));
|
|
}
|
|
err_vtpci_init:
|
|
rte_free(eth_dev->data->mac_addrs);
|
|
eth_dev->data->mac_addrs = NULL;
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev)
|
|
{
|
|
PMD_INIT_FUNC_TRACE();
|
|
|
|
if (rte_eal_process_type() == RTE_PROC_SECONDARY)
|
|
return 0;
|
|
|
|
virtio_dev_stop(eth_dev);
|
|
virtio_dev_close(eth_dev);
|
|
|
|
eth_dev->dev_ops = NULL;
|
|
eth_dev->tx_pkt_burst = NULL;
|
|
eth_dev->rx_pkt_burst = NULL;
|
|
|
|
PMD_INIT_LOG(DEBUG, "dev_uninit completed");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int vdpa_check_handler(__rte_unused const char *key,
|
|
const char *value, void *ret_val)
|
|
{
|
|
if (strcmp(value, "1") == 0)
|
|
*(int *)ret_val = 1;
|
|
else
|
|
*(int *)ret_val = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static uint32_t
|
|
virtio_dev_speed_capa_get(uint32_t speed)
|
|
{
|
|
switch (speed) {
|
|
case ETH_SPEED_NUM_10G:
|
|
return ETH_LINK_SPEED_10G;
|
|
case ETH_SPEED_NUM_20G:
|
|
return ETH_LINK_SPEED_20G;
|
|
case ETH_SPEED_NUM_25G:
|
|
return ETH_LINK_SPEED_25G;
|
|
case ETH_SPEED_NUM_40G:
|
|
return ETH_LINK_SPEED_40G;
|
|
case ETH_SPEED_NUM_50G:
|
|
return ETH_LINK_SPEED_50G;
|
|
case ETH_SPEED_NUM_56G:
|
|
return ETH_LINK_SPEED_56G;
|
|
case ETH_SPEED_NUM_100G:
|
|
return ETH_LINK_SPEED_100G;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
#define VIRTIO_ARG_SPEED "speed"
|
|
#define VIRTIO_ARG_VDPA "vdpa"
|
|
|
|
|
|
static int
|
|
link_speed_handler(const char *key __rte_unused,
|
|
const char *value, void *ret_val)
|
|
{
|
|
uint32_t val;
|
|
if (!value || !ret_val)
|
|
return -EINVAL;
|
|
val = strtoul(value, NULL, 0);
|
|
/* validate input */
|
|
if (virtio_dev_speed_capa_get(val) == 0)
|
|
return -EINVAL;
|
|
*(uint32_t *)ret_val = val;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
virtio_dev_devargs_parse(struct rte_devargs *devargs, int *vdpa,
|
|
uint32_t *speed)
|
|
{
|
|
struct rte_kvargs *kvlist;
|
|
int ret = 0;
|
|
|
|
if (devargs == NULL)
|
|
return 0;
|
|
|
|
kvlist = rte_kvargs_parse(devargs->args, NULL);
|
|
if (kvlist == NULL) {
|
|
PMD_INIT_LOG(ERR, "error when parsing param");
|
|
return 0;
|
|
}
|
|
if (vdpa && rte_kvargs_count(kvlist, VIRTIO_ARG_VDPA) == 1) {
|
|
/* vdpa mode selected when there's a key-value pair:
|
|
* vdpa=1
|
|
*/
|
|
ret = rte_kvargs_process(kvlist, VIRTIO_ARG_VDPA,
|
|
vdpa_check_handler, vdpa);
|
|
if (ret < 0) {
|
|
PMD_INIT_LOG(ERR, "Failed to parse %s",
|
|
VIRTIO_ARG_VDPA);
|
|
goto exit;
|
|
}
|
|
}
|
|
if (speed && rte_kvargs_count(kvlist, VIRTIO_ARG_SPEED) == 1) {
|
|
ret = rte_kvargs_process(kvlist,
|
|
VIRTIO_ARG_SPEED,
|
|
link_speed_handler, speed);
|
|
if (ret < 0) {
|
|
PMD_INIT_LOG(ERR, "Failed to parse %s",
|
|
VIRTIO_ARG_SPEED);
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
exit:
|
|
rte_kvargs_free(kvlist);
|
|
return ret;
|
|
}
|
|
|
|
static int eth_virtio_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
|
|
struct rte_pci_device *pci_dev)
|
|
{
|
|
int vdpa = 0;
|
|
int ret = 0;
|
|
|
|
ret = virtio_dev_devargs_parse(pci_dev->device.devargs, &vdpa, NULL);
|
|
if (ret < 0) {
|
|
PMD_INIT_LOG(ERR, "devargs parsing is failed");
|
|
return ret;
|
|
}
|
|
/* virtio pmd skips probe if device needs to work in vdpa mode */
|
|
if (vdpa == 1)
|
|
return 1;
|
|
|
|
return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct virtio_hw),
|
|
eth_virtio_dev_init);
|
|
}
|
|
|
|
static int eth_virtio_pci_remove(struct rte_pci_device *pci_dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = rte_eth_dev_pci_generic_remove(pci_dev, eth_virtio_dev_uninit);
|
|
/* Port has already been released by close. */
|
|
if (ret == -ENODEV)
|
|
ret = 0;
|
|
return ret;
|
|
}
|
|
|
|
static struct rte_pci_driver rte_virtio_pmd = {
|
|
.driver = {
|
|
.name = "net_virtio",
|
|
},
|
|
.id_table = pci_id_virtio_map,
|
|
.drv_flags = 0,
|
|
.probe = eth_virtio_pci_probe,
|
|
.remove = eth_virtio_pci_remove,
|
|
};
|
|
|
|
RTE_INIT(rte_virtio_pmd_init)
|
|
{
|
|
rte_eal_iopl_init();
|
|
rte_pci_register(&rte_virtio_pmd);
|
|
}
|
|
|
|
static bool
|
|
rx_offload_enabled(struct virtio_hw *hw)
|
|
{
|
|
return vtpci_with_feature(hw, VIRTIO_NET_F_GUEST_CSUM) ||
|
|
vtpci_with_feature(hw, VIRTIO_NET_F_GUEST_TSO4) ||
|
|
vtpci_with_feature(hw, VIRTIO_NET_F_GUEST_TSO6);
|
|
}
|
|
|
|
static bool
|
|
tx_offload_enabled(struct virtio_hw *hw)
|
|
{
|
|
return vtpci_with_feature(hw, VIRTIO_NET_F_CSUM) ||
|
|
vtpci_with_feature(hw, VIRTIO_NET_F_HOST_TSO4) ||
|
|
vtpci_with_feature(hw, VIRTIO_NET_F_HOST_TSO6);
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
const struct rte_eth_txmode *txmode = &dev->data->dev_conf.txmode;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
uint32_t ether_hdr_len = RTE_ETHER_HDR_LEN + VLAN_TAG_LEN +
|
|
hw->vtnet_hdr_size;
|
|
uint64_t rx_offloads = rxmode->offloads;
|
|
uint64_t tx_offloads = txmode->offloads;
|
|
uint64_t req_features;
|
|
int ret;
|
|
|
|
PMD_INIT_LOG(DEBUG, "configure");
|
|
req_features = VIRTIO_PMD_DEFAULT_GUEST_FEATURES;
|
|
|
|
if (rxmode->mq_mode != ETH_MQ_RX_NONE) {
|
|
PMD_DRV_LOG(ERR,
|
|
"Unsupported Rx multi queue mode %d",
|
|
rxmode->mq_mode);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (txmode->mq_mode != ETH_MQ_TX_NONE) {
|
|
PMD_DRV_LOG(ERR,
|
|
"Unsupported Tx multi queue mode %d",
|
|
txmode->mq_mode);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (dev->data->dev_conf.intr_conf.rxq) {
|
|
ret = virtio_init_device(dev, hw->req_guest_features);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (rxmode->max_rx_pkt_len > hw->max_mtu + ether_hdr_len)
|
|
req_features &= ~(1ULL << VIRTIO_NET_F_MTU);
|
|
|
|
if (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM |
|
|
DEV_RX_OFFLOAD_TCP_CKSUM))
|
|
req_features |= (1ULL << VIRTIO_NET_F_GUEST_CSUM);
|
|
|
|
if (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO)
|
|
req_features |=
|
|
(1ULL << VIRTIO_NET_F_GUEST_TSO4) |
|
|
(1ULL << VIRTIO_NET_F_GUEST_TSO6);
|
|
|
|
if (tx_offloads & (DEV_TX_OFFLOAD_UDP_CKSUM |
|
|
DEV_TX_OFFLOAD_TCP_CKSUM))
|
|
req_features |= (1ULL << VIRTIO_NET_F_CSUM);
|
|
|
|
if (tx_offloads & DEV_TX_OFFLOAD_TCP_TSO)
|
|
req_features |=
|
|
(1ULL << VIRTIO_NET_F_HOST_TSO4) |
|
|
(1ULL << VIRTIO_NET_F_HOST_TSO6);
|
|
|
|
/* if request features changed, reinit the device */
|
|
if (req_features != hw->req_guest_features) {
|
|
ret = virtio_init_device(dev, req_features);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if ((rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM |
|
|
DEV_RX_OFFLOAD_TCP_CKSUM)) &&
|
|
!vtpci_with_feature(hw, VIRTIO_NET_F_GUEST_CSUM)) {
|
|
PMD_DRV_LOG(ERR,
|
|
"rx checksum not available on this host");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
if ((rx_offloads & DEV_RX_OFFLOAD_TCP_LRO) &&
|
|
(!vtpci_with_feature(hw, VIRTIO_NET_F_GUEST_TSO4) ||
|
|
!vtpci_with_feature(hw, VIRTIO_NET_F_GUEST_TSO6))) {
|
|
PMD_DRV_LOG(ERR,
|
|
"Large Receive Offload not available on this host");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
/* start control queue */
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VQ))
|
|
virtio_dev_cq_start(dev);
|
|
|
|
if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
|
|
hw->vlan_strip = 1;
|
|
|
|
if ((rx_offloads & DEV_RX_OFFLOAD_VLAN_FILTER)
|
|
&& !vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VLAN)) {
|
|
PMD_DRV_LOG(ERR,
|
|
"vlan filtering not available on this host");
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
hw->has_tx_offload = tx_offload_enabled(hw);
|
|
hw->has_rx_offload = rx_offload_enabled(hw);
|
|
|
|
if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
|
|
/* Enable vector (0) for Link State Intrerrupt */
|
|
if (VTPCI_OPS(hw)->set_config_irq(hw, 0) ==
|
|
VIRTIO_MSI_NO_VECTOR) {
|
|
PMD_DRV_LOG(ERR, "failed to set config vector");
|
|
return -EBUSY;
|
|
}
|
|
|
|
hw->use_simple_rx = 1;
|
|
|
|
if (vtpci_with_feature(hw, VIRTIO_F_IN_ORDER)) {
|
|
hw->use_inorder_tx = 1;
|
|
hw->use_inorder_rx = 1;
|
|
hw->use_simple_rx = 0;
|
|
}
|
|
|
|
if (vtpci_packed_queue(hw)) {
|
|
hw->use_simple_rx = 0;
|
|
hw->use_inorder_rx = 0;
|
|
}
|
|
|
|
#if defined RTE_ARCH_ARM64 || defined RTE_ARCH_ARM
|
|
if (!rte_cpu_get_flag_enabled(RTE_CPUFLAG_NEON)) {
|
|
hw->use_simple_rx = 0;
|
|
}
|
|
#endif
|
|
if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {
|
|
hw->use_simple_rx = 0;
|
|
}
|
|
|
|
if (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM |
|
|
DEV_RX_OFFLOAD_TCP_CKSUM |
|
|
DEV_RX_OFFLOAD_TCP_LRO |
|
|
DEV_RX_OFFLOAD_VLAN_STRIP))
|
|
hw->use_simple_rx = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
virtio_dev_start(struct rte_eth_dev *dev)
|
|
{
|
|
uint16_t nb_queues, i;
|
|
struct virtnet_rx *rxvq;
|
|
struct virtnet_tx *txvq __rte_unused;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
int ret;
|
|
|
|
/* Finish the initialization of the queues */
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++) {
|
|
ret = virtio_dev_rx_queue_setup_finish(dev, i);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++) {
|
|
ret = virtio_dev_tx_queue_setup_finish(dev, i);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
/* check if lsc interrupt feature is enabled */
|
|
if (dev->data->dev_conf.intr_conf.lsc) {
|
|
if (!(dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)) {
|
|
PMD_DRV_LOG(ERR, "link status not supported by host");
|
|
return -ENOTSUP;
|
|
}
|
|
}
|
|
|
|
/* Enable uio/vfio intr/eventfd mapping: althrough we already did that
|
|
* in device configure, but it could be unmapped when device is
|
|
* stopped.
|
|
*/
|
|
if (dev->data->dev_conf.intr_conf.lsc ||
|
|
dev->data->dev_conf.intr_conf.rxq) {
|
|
virtio_intr_disable(dev);
|
|
|
|
/* Setup interrupt callback */
|
|
if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
|
|
rte_intr_callback_register(dev->intr_handle,
|
|
virtio_interrupt_handler,
|
|
dev);
|
|
|
|
if (virtio_intr_enable(dev) < 0) {
|
|
PMD_DRV_LOG(ERR, "interrupt enable failed");
|
|
return -EIO;
|
|
}
|
|
}
|
|
|
|
/*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 = RTE_MAX(dev->data->nb_rx_queues, dev->data->nb_tx_queues);
|
|
if (hw->max_queue_pairs > 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 < dev->data->nb_rx_queues; i++) {
|
|
rxvq = dev->data->rx_queues[i];
|
|
/* Flush the old packets */
|
|
virtqueue_rxvq_flush(rxvq->vq);
|
|
virtqueue_notify(rxvq->vq);
|
|
}
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++) {
|
|
txvq = dev->data->tx_queues[i];
|
|
virtqueue_notify(txvq->vq);
|
|
}
|
|
|
|
PMD_INIT_LOG(DEBUG, "Notified backend at initialization");
|
|
|
|
for (i = 0; i < dev->data->nb_rx_queues; i++) {
|
|
rxvq = dev->data->rx_queues[i];
|
|
VIRTQUEUE_DUMP(rxvq->vq);
|
|
}
|
|
|
|
for (i = 0; i < dev->data->nb_tx_queues; i++) {
|
|
txvq = dev->data->tx_queues[i];
|
|
VIRTQUEUE_DUMP(txvq->vq);
|
|
}
|
|
|
|
set_rxtx_funcs(dev);
|
|
hw->started = true;
|
|
|
|
/* Initialize Link state */
|
|
virtio_dev_link_update(dev, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void virtio_dev_free_mbufs(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
uint16_t nr_vq = virtio_get_nr_vq(hw);
|
|
const char *type __rte_unused;
|
|
unsigned int i, mbuf_num = 0;
|
|
struct virtqueue *vq;
|
|
struct rte_mbuf *buf;
|
|
int queue_type;
|
|
|
|
if (hw->vqs == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < nr_vq; i++) {
|
|
vq = hw->vqs[i];
|
|
if (!vq)
|
|
continue;
|
|
|
|
queue_type = virtio_get_queue_type(hw, i);
|
|
if (queue_type == VTNET_RQ)
|
|
type = "rxq";
|
|
else if (queue_type == VTNET_TQ)
|
|
type = "txq";
|
|
else
|
|
continue;
|
|
|
|
PMD_INIT_LOG(DEBUG,
|
|
"Before freeing %s[%d] used and unused buf",
|
|
type, i);
|
|
VIRTQUEUE_DUMP(vq);
|
|
|
|
while ((buf = virtqueue_detach_unused(vq)) != NULL) {
|
|
rte_pktmbuf_free(buf);
|
|
mbuf_num++;
|
|
}
|
|
|
|
PMD_INIT_LOG(DEBUG,
|
|
"After freeing %s[%d] used and unused buf",
|
|
type, i);
|
|
VIRTQUEUE_DUMP(vq);
|
|
}
|
|
|
|
PMD_INIT_LOG(DEBUG, "%d mbufs freed", mbuf_num);
|
|
}
|
|
|
|
/*
|
|
* Stop device: disable interrupt and mark link down
|
|
*/
|
|
static void
|
|
virtio_dev_stop(struct rte_eth_dev *dev)
|
|
{
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
struct rte_eth_link link;
|
|
struct rte_intr_conf *intr_conf = &dev->data->dev_conf.intr_conf;
|
|
|
|
PMD_INIT_LOG(DEBUG, "stop");
|
|
|
|
rte_spinlock_lock(&hw->state_lock);
|
|
if (!hw->started)
|
|
goto out_unlock;
|
|
hw->started = false;
|
|
|
|
if (intr_conf->lsc || intr_conf->rxq) {
|
|
virtio_intr_disable(dev);
|
|
|
|
/* Reset interrupt callback */
|
|
if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC) {
|
|
rte_intr_callback_unregister(dev->intr_handle,
|
|
virtio_interrupt_handler,
|
|
dev);
|
|
}
|
|
}
|
|
|
|
memset(&link, 0, sizeof(link));
|
|
rte_eth_linkstatus_set(dev, &link);
|
|
out_unlock:
|
|
rte_spinlock_unlock(&hw->state_lock);
|
|
}
|
|
|
|
static int
|
|
virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complete)
|
|
{
|
|
struct rte_eth_link link;
|
|
uint16_t status;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
|
|
memset(&link, 0, sizeof(link));
|
|
link.link_duplex = hw->duplex;
|
|
link.link_speed = hw->speed;
|
|
link.link_autoneg = ETH_LINK_AUTONEG;
|
|
|
|
if (!hw->started) {
|
|
link.link_status = ETH_LINK_DOWN;
|
|
} else 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;
|
|
}
|
|
|
|
return rte_eth_linkstatus_set(dev, &link);
|
|
}
|
|
|
|
static int
|
|
virtio_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
|
|
{
|
|
const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
uint64_t offloads = rxmode->offloads;
|
|
|
|
if (mask & ETH_VLAN_FILTER_MASK) {
|
|
if ((offloads & DEV_RX_OFFLOAD_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 (mask & ETH_VLAN_STRIP_MASK)
|
|
hw->vlan_strip = !!(offloads & DEV_RX_OFFLOAD_VLAN_STRIP);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
|
|
{
|
|
uint64_t tso_mask, host_features;
|
|
struct virtio_hw *hw = dev->data->dev_private;
|
|
dev_info->speed_capa = virtio_dev_speed_capa_get(hw->speed);
|
|
|
|
dev_info->max_rx_queues =
|
|
RTE_MIN(hw->max_queue_pairs, VIRTIO_MAX_RX_QUEUES);
|
|
dev_info->max_tx_queues =
|
|
RTE_MIN(hw->max_queue_pairs, VIRTIO_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;
|
|
|
|
host_features = VTPCI_OPS(hw)->get_features(hw);
|
|
dev_info->rx_offload_capa = DEV_RX_OFFLOAD_VLAN_STRIP;
|
|
dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_JUMBO_FRAME;
|
|
if (host_features & (1ULL << VIRTIO_NET_F_GUEST_CSUM)) {
|
|
dev_info->rx_offload_capa |=
|
|
DEV_RX_OFFLOAD_TCP_CKSUM |
|
|
DEV_RX_OFFLOAD_UDP_CKSUM;
|
|
}
|
|
if (host_features & (1ULL << VIRTIO_NET_F_CTRL_VLAN))
|
|
dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_VLAN_FILTER;
|
|
tso_mask = (1ULL << VIRTIO_NET_F_GUEST_TSO4) |
|
|
(1ULL << VIRTIO_NET_F_GUEST_TSO6);
|
|
if ((host_features & tso_mask) == tso_mask)
|
|
dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_TCP_LRO;
|
|
|
|
dev_info->tx_offload_capa = DEV_TX_OFFLOAD_MULTI_SEGS |
|
|
DEV_TX_OFFLOAD_VLAN_INSERT;
|
|
if (host_features & (1ULL << VIRTIO_NET_F_CSUM)) {
|
|
dev_info->tx_offload_capa |=
|
|
DEV_TX_OFFLOAD_UDP_CKSUM |
|
|
DEV_TX_OFFLOAD_TCP_CKSUM;
|
|
}
|
|
tso_mask = (1ULL << VIRTIO_NET_F_HOST_TSO4) |
|
|
(1ULL << VIRTIO_NET_F_HOST_TSO6);
|
|
if ((host_features & tso_mask) == tso_mask)
|
|
dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
|
|
RTE_PMD_EXPORT_NAME(net_virtio, __COUNTER__);
|
|
RTE_PMD_REGISTER_PCI_TABLE(net_virtio, pci_id_virtio_map);
|
|
RTE_PMD_REGISTER_KMOD_DEP(net_virtio, "* igb_uio | uio_pci_generic | vfio-pci");
|
|
|
|
RTE_INIT(virtio_init_log)
|
|
{
|
|
virtio_logtype_init = rte_log_register("pmd.net.virtio.init");
|
|
if (virtio_logtype_init >= 0)
|
|
rte_log_set_level(virtio_logtype_init, RTE_LOG_NOTICE);
|
|
virtio_logtype_driver = rte_log_register("pmd.net.virtio.driver");
|
|
if (virtio_logtype_driver >= 0)
|
|
rte_log_set_level(virtio_logtype_driver, RTE_LOG_NOTICE);
|
|
}
|