+++ /dev/null
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <stdint.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <errno.h>
-#include <sys/user.h>
-#ifndef PAGE_SIZE
-#define PAGE_SIZE sysconf(_SC_PAGE_SIZE)
-#endif
-#include <linux/binfmts.h>
-#include <xen/xen-compat.h>
-#if __XEN_LATEST_INTERFACE_VERSION__ < 0x00040200
-#include <xs.h>
-#else
-#include <xenstore.h>
-#endif
-#include <linux/virtio_ring.h>
-
-#include <rte_mbuf.h>
-#include <rte_ethdev.h>
-#include <rte_malloc.h>
-#include <rte_memcpy.h>
-#include <rte_string_fns.h>
-#include <rte_vdev.h>
-#include <cmdline_parse.h>
-#include <cmdline_parse_etheraddr.h>
-
-#include "rte_xen_lib.h"
-#include "virtqueue.h"
-#include "rte_eth_xenvirt.h"
-
-#define VQ_DESC_NUM 256
-#define VIRTIO_MBUF_BURST_SZ 64
-
-/* virtio_idx is increased after new device is created.*/
-static int virtio_idx = 0;
-
-static struct rte_eth_link pmd_link = {
- .link_speed = ETH_SPEED_NUM_10G,
- .link_duplex = ETH_LINK_FULL_DUPLEX,
- .link_status = ETH_LINK_DOWN,
- .link_autoneg = ETH_LINK_SPEED_FIXED
-};
-
-static void
-eth_xenvirt_free_queues(struct rte_eth_dev *dev);
-
-static uint16_t
-eth_xenvirt_rx(void *q, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
-{
- struct virtqueue *rxvq = q;
- struct rte_mbuf *rxm, *new_mbuf;
- uint16_t nb_used, num;
- uint32_t len[VIRTIO_MBUF_BURST_SZ];
- uint32_t i;
- struct pmd_internals *pi = rxvq->internals;
-
- nb_used = VIRTQUEUE_NUSED(rxvq);
-
- rte_smp_rmb();
- num = (uint16_t)(likely(nb_used <= nb_pkts) ? nb_used : nb_pkts);
- num = (uint16_t)(likely(num <= VIRTIO_MBUF_BURST_SZ) ? num : VIRTIO_MBUF_BURST_SZ);
- if (unlikely(num == 0)) return 0;
-
- num = virtqueue_dequeue_burst(rxvq, rx_pkts, len, num);
- PMD_RX_LOG(DEBUG, "used:%d dequeue:%d\n", nb_used, num);
- for (i = 0; i < num ; i ++) {
- rxm = rx_pkts[i];
- PMD_RX_LOG(DEBUG, "packet len:%d\n", len[i]);
- rxm->next = NULL;
- rxm->data_off = RTE_PKTMBUF_HEADROOM;
- rxm->data_len = (uint16_t)(len[i] - sizeof(struct virtio_net_hdr));
- rxm->nb_segs = 1;
- rxm->port = pi->port_id;
- rxm->pkt_len = (uint32_t)(len[i] - sizeof(struct virtio_net_hdr));
- }
- /* allocate new mbuf for the used descriptor */
- while (likely(!virtqueue_full(rxvq))) {
- new_mbuf = rte_mbuf_raw_alloc(rxvq->mpool);
- if (unlikely(new_mbuf == NULL)) {
- break;
- }
- if (unlikely(virtqueue_enqueue_recv_refill(rxvq, new_mbuf))) {
- rte_pktmbuf_free_seg(new_mbuf);
- break;
- }
- }
- pi->eth_stats.ipackets += num;
- return num;
-}
-
-static uint16_t
-eth_xenvirt_tx(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
-{
- struct virtqueue *txvq = tx_queue;
- struct rte_mbuf *txm;
- uint16_t nb_used, nb_tx, num, i;
- int error;
- uint32_t len[VIRTIO_MBUF_BURST_SZ];
- struct rte_mbuf *snd_pkts[VIRTIO_MBUF_BURST_SZ];
- struct pmd_internals *pi = txvq->internals;
-
- nb_tx = 0;
-
- if (unlikely(nb_pkts == 0))
- return 0;
-
- PMD_TX_LOG(DEBUG, "%d packets to xmit", nb_pkts);
- nb_used = VIRTQUEUE_NUSED(txvq);
-
- rte_smp_rmb();
-
- num = (uint16_t)(likely(nb_used <= VIRTIO_MBUF_BURST_SZ) ? nb_used : VIRTIO_MBUF_BURST_SZ);
- num = virtqueue_dequeue_burst(txvq, snd_pkts, len, num);
-
- for (i = 0; i < num ; i ++) {
- /* mergable not supported, one segment only */
- rte_pktmbuf_free_seg(snd_pkts[i]);
- }
-
- while (nb_tx < nb_pkts) {
- if (likely(!virtqueue_full(txvq))) {
- /* TODO drop tx_pkts if it contains multiple segments */
- txm = tx_pkts[nb_tx];
- error = virtqueue_enqueue_xmit(txvq, txm);
- if (unlikely(error)) {
- if (error == ENOSPC)
- PMD_TX_LOG(ERR, "virtqueue_enqueue Free count = 0\n");
- else if (error == EMSGSIZE)
- PMD_TX_LOG(ERR, "virtqueue_enqueue Free count < 1\n");
- else
- PMD_TX_LOG(ERR, "virtqueue_enqueue error: %d\n", error);
- break;
- }
- nb_tx++;
- } else {
- PMD_TX_LOG(ERR, "No free tx descriptors to transmit\n");
- /* virtqueue_notify not needed in our para-virt solution */
- break;
- }
- }
- pi->eth_stats.opackets += nb_tx;
- return nb_tx;
-}
-
-static int
-eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
-{
- RTE_LOG(ERR, PMD, "%s\n", __func__);
- return 0;
-}
-
-/*
- * Create a shared page between guest and host.
- * Host monitors this page if it is cleared on unmap, and then
- * do necessary clean up.
- */
-static void
-gntalloc_vring_flag(int vtidx)
-{
- char key_str[PATH_MAX];
- char val_str[PATH_MAX];
- uint32_t gref_tmp;
- void *ptr;
-
- if (grefwatch_from_alloc(&gref_tmp, &ptr)) {
- RTE_LOG(ERR, PMD, "grefwatch_from_alloc error\n");
- exit(0);
- }
-
- *(uint8_t *)ptr = MAP_FLAG;
- snprintf(val_str, sizeof(val_str), "%u", gref_tmp);
- snprintf(key_str, sizeof(key_str),
- DPDK_XENSTORE_PATH"%d"VRING_FLAG_STR, vtidx);
- xenstore_write(key_str, val_str);
-}
-
-/*
- * Notify host this virtio device is started.
- * Host could start polling this device.
- */
-static void
-dev_start_notify(int vtidx)
-{
- char key_str[PATH_MAX];
- char val_str[PATH_MAX];
-
- RTE_LOG(INFO, PMD, "%s: virtio %d is started\n", __func__, vtidx);
- gntalloc_vring_flag(vtidx);
-
- snprintf(key_str, sizeof(key_str), "%s%s%d",
- DPDK_XENSTORE_PATH, EVENT_TYPE_START_STR,
- vtidx);
- snprintf(val_str, sizeof(val_str), "1");
- xenstore_write(key_str, val_str);
-}
-
-/*
- * Notify host this virtio device is stopped.
- * Host could stop polling this device.
- */
-static void
-dev_stop_notify(int vtidx)
-{
- RTE_SET_USED(vtidx);
-}
-
-
-static int
-update_mac_address(struct ether_addr *mac_addrs, int vtidx)
-{
- char key_str[PATH_MAX];
- char val_str[PATH_MAX];
- int rv;
-
- if (mac_addrs == NULL) {
- RTE_LOG(ERR, PMD, "%s: NULL pointer mac specified\n", __func__);
- return -1;
- }
- rv = snprintf(key_str, sizeof(key_str),
- DPDK_XENSTORE_PATH"%d_ether_addr", vtidx);
- if (rv == -1)
- return rv;
- rv = snprintf(val_str, sizeof(val_str), "%02x:%02x:%02x:%02x:%02x:%02x",
- mac_addrs->addr_bytes[0],
- mac_addrs->addr_bytes[1],
- mac_addrs->addr_bytes[2],
- mac_addrs->addr_bytes[3],
- mac_addrs->addr_bytes[4],
- mac_addrs->addr_bytes[5]);
- if (rv == -1)
- return rv;
- if (xenstore_write(key_str, val_str))
- return rv;
- return 0;
-}
-
-
-static int
-eth_dev_start(struct rte_eth_dev *dev)
-{
- struct virtqueue *rxvq = dev->data->rx_queues[0];
- struct virtqueue *txvq = dev->data->tx_queues[0];
- struct rte_mbuf *m;
- struct pmd_internals *pi = (struct pmd_internals *)dev->data->dev_private;
- int rv;
-
- dev->data->dev_link.link_status = ETH_LINK_UP;
- while (!virtqueue_full(rxvq)) {
- m = rte_mbuf_raw_alloc(rxvq->mpool);
- if (m == NULL)
- break;
- /* Enqueue allocated buffers. */
- if (virtqueue_enqueue_recv_refill(rxvq, m)) {
- rte_pktmbuf_free_seg(m);
- break;
- }
- }
-
- rxvq->internals = pi;
- txvq->internals = pi;
-
- rv = update_mac_address(dev->data->mac_addrs, pi->virtio_idx);
- if (rv)
- return -1;
- dev_start_notify(pi->virtio_idx);
-
- return 0;
-}
-
-static void
-eth_dev_stop(struct rte_eth_dev *dev)
-{
- struct pmd_internals *pi = (struct pmd_internals *)dev->data->dev_private;
-
- dev->data->dev_link.link_status = ETH_LINK_DOWN;
- dev_stop_notify(pi->virtio_idx);
-}
-
-/*
- * Notify host this virtio device is closed.
- * Host could do necessary clean up to this device.
- */
-static void
-eth_dev_close(struct rte_eth_dev *dev)
-{
- eth_xenvirt_free_queues(dev);
-}
-
-static void
-eth_dev_info(struct rte_eth_dev *dev,
- struct rte_eth_dev_info *dev_info)
-{
- struct pmd_internals *internals = dev->data->dev_private;
-
- RTE_SET_USED(internals);
- dev_info->max_mac_addrs = 1;
- dev_info->max_rx_pktlen = (uint32_t)2048;
- dev_info->max_rx_queues = (uint16_t)1;
- dev_info->max_tx_queues = (uint16_t)1;
- dev_info->min_rx_bufsize = 0;
-}
-
-static void
-eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
-{
- struct pmd_internals *internals = dev->data->dev_private;
- if(stats)
- rte_memcpy(stats, &internals->eth_stats, sizeof(*stats));
-}
-
-static void
-eth_stats_reset(struct rte_eth_dev *dev)
-{
- struct pmd_internals *internals = dev->data->dev_private;
- /* Reset software totals */
- memset(&internals->eth_stats, 0, sizeof(internals->eth_stats));
-}
-
-static void
-eth_queue_release(void *q)
-{
- rte_free(q);
-}
-
-static int
-eth_link_update(struct rte_eth_dev *dev __rte_unused,
- int wait_to_complete __rte_unused)
-{
- return 0;
-}
-
-/*
- * Create shared vring between guest and host.
- * Memory is allocated through grant alloc driver, so it is not physical continuous.
- */
-static void *
-gntalloc_vring_create(int queue_type, uint32_t size, int vtidx)
-{
- char key_str[PATH_MAX] = {0};
- char val_str[PATH_MAX] = {0};
- void *va = NULL;
- int pg_size;
- uint32_t pg_num;
- uint32_t *gref_arr = NULL;
- phys_addr_t *pa_arr = NULL;
- uint64_t start_index;
- int rv;
-
- pg_size = getpagesize();
- size = RTE_ALIGN_CEIL(size, pg_size);
- pg_num = size / pg_size;
-
- gref_arr = calloc(pg_num, sizeof(gref_arr[0]));
- pa_arr = calloc(pg_num, sizeof(pa_arr[0]));
-
- if (gref_arr == NULL || pa_arr == NULL) {
- RTE_LOG(ERR, PMD, "%s: calloc failed\n", __func__);
- goto out;
- }
-
- va = gntalloc(size, gref_arr, &start_index);
- if (va == NULL) {
- RTE_LOG(ERR, PMD, "%s: gntalloc failed\n", __func__);
- goto out;
- }
-
- if (get_phys_map(va, pa_arr, pg_num, pg_size))
- goto out;
-
- /* write in xenstore gref and pfn for each page of vring */
- if (grant_node_create(pg_num, gref_arr, pa_arr, val_str, sizeof(val_str))) {
- gntfree(va, size, start_index);
- va = NULL;
- goto out;
- }
-
- if (queue_type == VTNET_RQ)
- rv = snprintf(key_str, sizeof(key_str), DPDK_XENSTORE_PATH"%d"RXVRING_XENSTORE_STR, vtidx);
- else
- rv = snprintf(key_str, sizeof(key_str), DPDK_XENSTORE_PATH"%d"TXVRING_XENSTORE_STR, vtidx);
- if (rv == -1 || xenstore_write(key_str, val_str) == -1) {
- gntfree(va, size, start_index);
- va = NULL;
- }
-out:
- free(pa_arr);
- free(gref_arr);
-
- return va;
-}
-
-
-
-static struct virtqueue *
-virtio_queue_setup(struct rte_eth_dev *dev, int queue_type)
-{
- struct virtqueue *vq = NULL;
- uint16_t vq_size = VQ_DESC_NUM;
- int i = 0;
- char vq_name[VIRTQUEUE_MAX_NAME_SZ];
- size_t size;
- struct vring *vr;
-
- /* Allocate memory for virtqueue. */
- if (queue_type == VTNET_RQ) {
- snprintf(vq_name, sizeof(vq_name), "port%d_rvq",
- dev->data->port_id);
- vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) +
- vq_size * sizeof(struct vq_desc_extra), RTE_CACHE_LINE_SIZE);
- if (vq == NULL) {
- RTE_LOG(ERR, PMD, "%s: unabled to allocate virtqueue\n", __func__);
- return NULL;
- }
- memcpy(vq->vq_name, vq_name, sizeof(vq->vq_name));
- } else if(queue_type == VTNET_TQ) {
- snprintf(vq_name, sizeof(vq_name), "port%d_tvq",
- dev->data->port_id);
- vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) +
- vq_size * sizeof(struct vq_desc_extra), RTE_CACHE_LINE_SIZE);
- if (vq == NULL) {
- RTE_LOG(ERR, PMD, "%s: unabled to allocate virtqueue\n", __func__);
- return NULL;
- }
- memcpy(vq->vq_name, vq_name, sizeof(vq->vq_name));
- }
-
- memcpy(vq->vq_name, vq_name, sizeof(vq->vq_name));
-
- vq->vq_alignment = VIRTIO_PCI_VRING_ALIGN;
- vq->vq_nentries = vq_size;
- vq->vq_free_cnt = vq_size;
- /* Calcuate vring size according to virtio spec */
- size = vring_size(vq_size, VIRTIO_PCI_VRING_ALIGN);
- vq->vq_ring_size = RTE_ALIGN_CEIL(size, VIRTIO_PCI_VRING_ALIGN);
- /* Allocate memory for virtio vring through gntalloc driver*/
- vq->vq_ring_virt_mem = gntalloc_vring_create(queue_type, vq->vq_ring_size,
- ((struct pmd_internals *)dev->data->dev_private)->virtio_idx);
- memset(vq->vq_ring_virt_mem, 0, vq->vq_ring_size);
- vr = &vq->vq_ring;
- vring_init(vr, vq_size, vq->vq_ring_virt_mem, vq->vq_alignment);
- /*
- * Locally maintained last consumed index, this idex trails
- * vq_ring.used->idx.
- */
- vq->vq_used_cons_idx = 0;
- vq->vq_desc_head_idx = 0;
- vq->vq_free_cnt = vq->vq_nentries;
- memset(vq->vq_descx, 0, sizeof(struct vq_desc_extra) * vq->vq_nentries);
-
- /* Chain all the descriptors in the ring with an END */
- for (i = 0; i < vq_size - 1; i++)
- vr->desc[i].next = (uint16_t)(i + 1);
- vr->desc[i].next = VQ_RING_DESC_CHAIN_END;
-
- return vq;
-}
-
-static int
-eth_rx_queue_setup(struct rte_eth_dev *dev,uint16_t rx_queue_id,
- uint16_t nb_rx_desc __rte_unused,
- unsigned int socket_id __rte_unused,
- const struct rte_eth_rxconf *rx_conf __rte_unused,
- struct rte_mempool *mb_pool)
-{
- struct virtqueue *vq;
- vq = dev->data->rx_queues[rx_queue_id] = virtio_queue_setup(dev, VTNET_RQ);
- vq->mpool = mb_pool;
- return 0;
-}
-
-static int
-eth_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
- uint16_t nb_tx_desc __rte_unused,
- unsigned int socket_id __rte_unused,
- const struct rte_eth_txconf *tx_conf __rte_unused)
-{
- dev->data->tx_queues[tx_queue_id] = virtio_queue_setup(dev, VTNET_TQ);
- return 0;
-}
-
-static void
-eth_xenvirt_free_queues(struct rte_eth_dev *dev)
-{
- int i;
-
- for (i = 0; i < dev->data->nb_rx_queues; i++) {
- eth_queue_release(dev->data->rx_queues[i]);
- dev->data->rx_queues[i] = NULL;
- }
- dev->data->nb_rx_queues = 0;
-
- for (i = 0; i < dev->data->nb_tx_queues; i++) {
- eth_queue_release(dev->data->tx_queues[i]);
- dev->data->tx_queues[i] = NULL;
- }
- dev->data->nb_tx_queues = 0;
-}
-
-static const struct eth_dev_ops ops = {
- .dev_start = eth_dev_start,
- .dev_stop = eth_dev_stop,
- .dev_close = eth_dev_close,
- .dev_configure = eth_dev_configure,
- .dev_infos_get = eth_dev_info,
- .rx_queue_setup = eth_rx_queue_setup,
- .tx_queue_setup = eth_tx_queue_setup,
- .rx_queue_release = eth_queue_release,
- .tx_queue_release = eth_queue_release,
- .link_update = eth_link_update,
- .stats_get = eth_stats_get,
- .stats_reset = eth_stats_reset,
-};
-
-
-static int
-rte_eth_xenvirt_parse_args(struct xenvirt_dict *dict,
- const char *name, const char *params)
-{
- int i;
- char *pairs[RTE_ETH_XENVIRT_MAX_ARGS];
- int num_of_pairs;
- char *pair[2];
- char *args;
- int ret = -1;
-
- if (params == NULL)
- return 0;
-
- args = rte_zmalloc(NULL, strlen(params) + 1, RTE_CACHE_LINE_SIZE);
- if (args == NULL) {
- RTE_LOG(ERR, PMD, "Couldn't parse %s device \n", name);
- return -1;
- }
- rte_memcpy(args, params, strlen(params));
-
- num_of_pairs = rte_strsplit(args, strnlen(args, MAX_ARG_STRLEN),
- pairs,
- RTE_ETH_XENVIRT_MAX_ARGS ,
- RTE_ETH_XENVIRT_PAIRS_DELIM);
-
- for (i = 0; i < num_of_pairs; i++) {
- pair[0] = NULL;
- pair[1] = NULL;
- rte_strsplit(pairs[i], strnlen(pairs[i], MAX_ARG_STRLEN),
- pair, 2,
- RTE_ETH_XENVIRT_KEY_VALUE_DELIM);
-
- if (pair[0] == NULL || pair[1] == NULL || pair[0][0] == 0
- || pair[1][0] == 0) {
- RTE_LOG(ERR, PMD,
- "Couldn't parse %s device,"
- "wrong key or value \n", name);
- goto err;
- }
-
- if (!strncmp(pair[0], RTE_ETH_XENVIRT_MAC_PARAM,
- sizeof(RTE_ETH_XENVIRT_MAC_PARAM))) {
- if (cmdline_parse_etheraddr(NULL,
- pair[1],
- &dict->addr,
- sizeof(dict->addr)) < 0) {
- RTE_LOG(ERR, PMD,
- "Invalid %s device ether address\n",
- name);
- goto err;
- }
-
- dict->addr_valid = 1;
- }
- }
-
- ret = 0;
-err:
- rte_free(args);
- return ret;
-}
-
-enum dev_action {
- DEV_CREATE,
- DEV_ATTACH
-};
-
-static struct rte_vdev_driver pmd_xenvirt_drv;
-
-static int
-eth_dev_xenvirt_create(const char *name, const char *params,
- const unsigned numa_node,
- enum dev_action action)
-{
- struct rte_eth_dev_data *data = NULL;
- struct pmd_internals *internals = NULL;
- struct rte_eth_dev *eth_dev = NULL;
- struct xenvirt_dict dict;
-
- memset(&dict, 0, sizeof(struct xenvirt_dict));
-
- RTE_LOG(INFO, PMD, "Creating virtio rings backed ethdev on numa socket %u\n",
- numa_node);
- RTE_SET_USED(action);
-
- if (rte_eth_xenvirt_parse_args(&dict, name, params) < 0) {
- RTE_LOG(ERR, PMD, "%s: Failed to parse ethdev parameters\n", __func__);
- return -1;
- }
-
- /* now do all data allocation - for eth_dev structure, dummy pci driver
- * and internal (private) data
- */
- data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
- if (data == NULL)
- goto err;
-
- internals = rte_zmalloc_socket(name, sizeof(*internals), 0, numa_node);
- if (internals == NULL)
- goto err;
-
- /* reserve an ethdev entry */
- eth_dev = rte_eth_dev_allocate(name);
- if (eth_dev == NULL)
- goto err;
-
- data->dev_private = internals;
- data->port_id = eth_dev->data->port_id;
- data->nb_rx_queues = (uint16_t)1;
- data->nb_tx_queues = (uint16_t)1;
- data->dev_link = pmd_link;
- data->mac_addrs = rte_zmalloc("xen_virtio", ETHER_ADDR_LEN, 0);
-
- if(dict.addr_valid)
- memcpy(&data->mac_addrs->addr_bytes, &dict.addr, sizeof(struct ether_addr));
- else
- eth_random_addr(&data->mac_addrs->addr_bytes[0]);
-
- eth_dev->data = data;
- eth_dev->dev_ops = &ops;
-
- eth_dev->data->dev_flags = RTE_ETH_DEV_DETACHABLE;
- eth_dev->data->kdrv = RTE_KDRV_NONE;
- eth_dev->data->numa_node = numa_node;
-
- eth_dev->rx_pkt_burst = eth_xenvirt_rx;
- eth_dev->tx_pkt_burst = eth_xenvirt_tx;
-
- internals->virtio_idx = virtio_idx++;
- internals->port_id = eth_dev->data->port_id;
-
- return 0;
-
-err:
- rte_free(data);
- rte_free(internals);
-
- return -1;
-}
-
-
-static int
-eth_dev_xenvirt_free(const char *name, const unsigned numa_node)
-{
- struct rte_eth_dev *eth_dev = NULL;
-
- RTE_LOG(DEBUG, PMD,
- "Free virtio rings backed ethdev on numa socket %u\n",
- numa_node);
-
- /* find an ethdev entry */
- eth_dev = rte_eth_dev_allocated(name);
- if (eth_dev == NULL)
- return -1;
-
- if (eth_dev->data->dev_started == 1) {
- eth_dev_stop(eth_dev);
- eth_dev_close(eth_dev);
- }
-
- eth_dev->rx_pkt_burst = NULL;
- eth_dev->tx_pkt_burst = NULL;
- eth_dev->dev_ops = NULL;
-
- rte_free(eth_dev->data);
- rte_free(eth_dev->data->dev_private);
- rte_free(eth_dev->data->mac_addrs);
-
- virtio_idx--;
-
- return 0;
-}
-
-/*TODO: Support multiple process model */
-static int
-rte_pmd_xenvirt_probe(struct rte_vdev_device *dev)
-{
- if (virtio_idx == 0) {
- if (xenstore_init() != 0) {
- RTE_LOG(ERR, PMD, "%s: xenstore init failed\n", __func__);
- return -1;
- }
- if (gntalloc_open() != 0) {
- RTE_LOG(ERR, PMD, "%s: grant init failed\n", __func__);
- return -1;
- }
- }
- eth_dev_xenvirt_create(rte_vdev_device_name(dev),
- rte_vdev_device_args(dev), rte_socket_id(), DEV_CREATE);
- return 0;
-}
-
-static int
-rte_pmd_xenvirt_remove(struct rte_vdev_device *dev)
-{
- eth_dev_xenvirt_free(rte_vdev_device_name(dev), rte_socket_id());
-
- if (virtio_idx == 0) {
- if (xenstore_uninit() != 0)
- RTE_LOG(ERR, PMD, "%s: xenstore uninit failed\n", __func__);
-
- gntalloc_close();
- }
- return 0;
-}
-
-static struct rte_vdev_driver pmd_xenvirt_drv = {
- .probe = rte_pmd_xenvirt_probe,
- .remove = rte_pmd_xenvirt_remove,
-};
-
-RTE_PMD_REGISTER_VDEV(net_xenvirt, pmd_xenvirt_drv);
-RTE_PMD_REGISTER_ALIAS(net_xenvirt, eth_xenvirt);
-RTE_PMD_REGISTER_PARAM_STRING(net_xenvirt,
- "mac=<mac addr>");
Code Review / deb_dpdk.git / blobdiff