+++ /dev/null
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 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 <rte_mbuf.h>
-#include <rte_ethdev.h>
-#include <rte_malloc.h>
-#include <rte_memcpy.h>
-#include <rte_memory.h>
-#include <rte_ring.h>
-
-#include "virtual_pmd.h"
-
-#define MAX_PKT_BURST 512
-
-static const char *virtual_ethdev_driver_name = "Virtual PMD";
-
-struct virtual_ethdev_private {
- struct eth_dev_ops dev_ops;
- struct rte_eth_stats eth_stats;
-
- struct rte_ring *rx_queue;
- struct rte_ring *tx_queue;
-
- int tx_burst_fail_count;
-};
-
-struct virtual_ethdev_queue {
- int port_id;
- int queue_id;
-};
-
-static int
-virtual_ethdev_start_success(struct rte_eth_dev *eth_dev __rte_unused)
-{
- eth_dev->data->dev_started = 1;
-
- return 0;
-}
-
-static int
-virtual_ethdev_start_fail(struct rte_eth_dev *eth_dev __rte_unused)
-{
- eth_dev->data->dev_started = 0;
-
- return -1;
-}
-static void virtual_ethdev_stop(struct rte_eth_dev *eth_dev __rte_unused)
-{
- void *pkt = NULL;
- struct virtual_ethdev_private *prv = eth_dev->data->dev_private;
-
- eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
- eth_dev->data->dev_started = 0;
- while (rte_ring_dequeue(prv->rx_queue, &pkt) != -ENOENT)
- rte_pktmbuf_free(pkt);
-
- while (rte_ring_dequeue(prv->tx_queue, &pkt) != -ENOENT)
- rte_pktmbuf_free(pkt);
-}
-
-static void
-virtual_ethdev_close(struct rte_eth_dev *dev __rte_unused)
-{}
-
-static int
-virtual_ethdev_configure_success(struct rte_eth_dev *dev __rte_unused)
-{
- return 0;
-}
-
-static int
-virtual_ethdev_configure_fail(struct rte_eth_dev *dev __rte_unused)
-{
- return -1;
-}
-
-static void
-virtual_ethdev_info_get(struct rte_eth_dev *dev __rte_unused,
- struct rte_eth_dev_info *dev_info)
-{
- dev_info->driver_name = virtual_ethdev_driver_name;
- dev_info->max_mac_addrs = 1;
-
- dev_info->max_rx_pktlen = (uint32_t)2048;
-
- dev_info->max_rx_queues = (uint16_t)128;
- dev_info->max_tx_queues = (uint16_t)512;
-
- dev_info->min_rx_bufsize = 0;
- dev_info->pci_dev = NULL;
-}
-
-static int
-virtual_ethdev_rx_queue_setup_success(struct rte_eth_dev *dev,
- uint16_t rx_queue_id, uint16_t nb_rx_desc __rte_unused,
- unsigned int socket_id,
- const struct rte_eth_rxconf *rx_conf __rte_unused,
- struct rte_mempool *mb_pool __rte_unused)
-{
- struct virtual_ethdev_queue *rx_q;
-
- rx_q = (struct virtual_ethdev_queue *)rte_zmalloc_socket(NULL,
- sizeof(struct virtual_ethdev_queue), 0, socket_id);
-
- if (rx_q == NULL)
- return -1;
-
- rx_q->port_id = dev->data->port_id;
- rx_q->queue_id = rx_queue_id;
-
- dev->data->rx_queues[rx_queue_id] = rx_q;
-
- return 0;
-}
-
-static int
-virtual_ethdev_rx_queue_setup_fail(struct rte_eth_dev *dev __rte_unused,
- uint16_t rx_queue_id __rte_unused, 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 __rte_unused)
-{
- return -1;
-}
-
-static int
-virtual_ethdev_tx_queue_setup_success(struct rte_eth_dev *dev,
- uint16_t tx_queue_id, uint16_t nb_tx_desc __rte_unused,
- unsigned int socket_id,
- const struct rte_eth_txconf *tx_conf __rte_unused)
-{
- struct virtual_ethdev_queue *tx_q;
-
- tx_q = (struct virtual_ethdev_queue *)rte_zmalloc_socket(NULL,
- sizeof(struct virtual_ethdev_queue), 0, socket_id);
-
- if (tx_q == NULL)
- return -1;
-
- tx_q->port_id = dev->data->port_id;
- tx_q->queue_id = tx_queue_id;
-
- dev->data->tx_queues[tx_queue_id] = tx_q;
-
- return 0;
-}
-
-static int
-virtual_ethdev_tx_queue_setup_fail(struct rte_eth_dev *dev __rte_unused,
- uint16_t tx_queue_id __rte_unused, uint16_t nb_tx_desc __rte_unused,
- unsigned int socket_id __rte_unused,
- const struct rte_eth_txconf *tx_conf __rte_unused)
-{
- return -1;
-}
-
-static void
-virtual_ethdev_rx_queue_release(void *q __rte_unused)
-{
-}
-
-static void
-virtual_ethdev_tx_queue_release(void *q __rte_unused)
-{
-}
-
-static int
-virtual_ethdev_link_update_success(struct rte_eth_dev *bonded_eth_dev,
- int wait_to_complete __rte_unused)
-{
- if (!bonded_eth_dev->data->dev_started)
- bonded_eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
-
- return 0;
-}
-
-static int
-virtual_ethdev_link_update_fail(struct rte_eth_dev *bonded_eth_dev __rte_unused,
- int wait_to_complete __rte_unused)
-{
- return -1;
-}
-
-static void
-virtual_ethdev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
-{
- struct virtual_ethdev_private *dev_private = dev->data->dev_private;
-
- if (stats)
- rte_memcpy(stats, &dev_private->eth_stats, sizeof(*stats));
-}
-
-static void
-virtual_ethdev_stats_reset(struct rte_eth_dev *dev)
-{
- struct virtual_ethdev_private *dev_private = dev->data->dev_private;
- void *pkt = NULL;
-
- while (rte_ring_dequeue(dev_private->tx_queue, &pkt) == -ENOBUFS)
- rte_pktmbuf_free(pkt);
-
- /* Reset internal statistics */
- memset(&dev_private->eth_stats, 0, sizeof(dev_private->eth_stats));
-}
-
-static void
-virtual_ethdev_promiscuous_mode_enable(struct rte_eth_dev *dev __rte_unused)
-{}
-
-static void
-virtual_ethdev_promiscuous_mode_disable(struct rte_eth_dev *dev __rte_unused)
-{}
-
-
-static const struct eth_dev_ops virtual_ethdev_default_dev_ops = {
- .dev_configure = virtual_ethdev_configure_success,
- .dev_start = virtual_ethdev_start_success,
- .dev_stop = virtual_ethdev_stop,
- .dev_close = virtual_ethdev_close,
- .dev_infos_get = virtual_ethdev_info_get,
- .rx_queue_setup = virtual_ethdev_rx_queue_setup_success,
- .tx_queue_setup = virtual_ethdev_tx_queue_setup_success,
- .rx_queue_release = virtual_ethdev_rx_queue_release,
- .tx_queue_release = virtual_ethdev_tx_queue_release,
- .link_update = virtual_ethdev_link_update_success,
- .stats_get = virtual_ethdev_stats_get,
- .stats_reset = virtual_ethdev_stats_reset,
- .promiscuous_enable = virtual_ethdev_promiscuous_mode_enable,
- .promiscuous_disable = virtual_ethdev_promiscuous_mode_disable
-};
-
-
-void
-virtual_ethdev_start_fn_set_success(uint8_t port_id, uint8_t success)
-{
- struct rte_eth_dev *dev = &rte_eth_devices[port_id];
- struct virtual_ethdev_private *dev_private = dev->data->dev_private;
- struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
-
- if (success)
- dev_ops->dev_start = virtual_ethdev_start_success;
- else
- dev_ops->dev_start = virtual_ethdev_start_fail;
-
-}
-
-void
-virtual_ethdev_configure_fn_set_success(uint8_t port_id, uint8_t success)
-{
- struct rte_eth_dev *dev = &rte_eth_devices[port_id];
- struct virtual_ethdev_private *dev_private = dev->data->dev_private;
- struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
-
- if (success)
- dev_ops->dev_configure = virtual_ethdev_configure_success;
- else
- dev_ops->dev_configure = virtual_ethdev_configure_fail;
-}
-
-void
-virtual_ethdev_rx_queue_setup_fn_set_success(uint8_t port_id, uint8_t success)
-{
- struct rte_eth_dev *dev = &rte_eth_devices[port_id];
- struct virtual_ethdev_private *dev_private = dev->data->dev_private;
- struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
-
- if (success)
- dev_ops->rx_queue_setup = virtual_ethdev_rx_queue_setup_success;
- else
- dev_ops->rx_queue_setup = virtual_ethdev_rx_queue_setup_fail;
-}
-
-void
-virtual_ethdev_tx_queue_setup_fn_set_success(uint8_t port_id, uint8_t success)
-{
- struct rte_eth_dev *dev = &rte_eth_devices[port_id];
- struct virtual_ethdev_private *dev_private = dev->data->dev_private;
- struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
-
- if (success)
- dev_ops->tx_queue_setup = virtual_ethdev_tx_queue_setup_success;
- else
- dev_ops->tx_queue_setup = virtual_ethdev_tx_queue_setup_fail;
-}
-
-void
-virtual_ethdev_link_update_fn_set_success(uint8_t port_id, uint8_t success)
-{
- struct rte_eth_dev *dev = &rte_eth_devices[port_id];
- struct virtual_ethdev_private *dev_private = dev->data->dev_private;
- struct eth_dev_ops *dev_ops = &dev_private->dev_ops;
-
- if (success)
- dev_ops->link_update = virtual_ethdev_link_update_success;
- else
- dev_ops->link_update = virtual_ethdev_link_update_fail;
-}
-
-
-static uint16_t
-virtual_ethdev_rx_burst_success(void *queue __rte_unused,
- struct rte_mbuf **bufs,
- uint16_t nb_pkts)
-{
- struct rte_eth_dev *vrtl_eth_dev;
- struct virtual_ethdev_queue *pq_map;
- struct virtual_ethdev_private *dev_private;
-
- int rx_count, i;
-
- pq_map = (struct virtual_ethdev_queue *)queue;
- vrtl_eth_dev = &rte_eth_devices[pq_map->port_id];
- dev_private = vrtl_eth_dev->data->dev_private;
-
- rx_count = rte_ring_dequeue_burst(dev_private->rx_queue, (void **) bufs,
- nb_pkts);
-
- /* increments ipackets count */
- dev_private->eth_stats.ipackets += rx_count;
-
- /* increments ibytes count */
- for (i = 0; i < rx_count; i++)
- dev_private->eth_stats.ibytes += rte_pktmbuf_pkt_len(bufs[i]);
-
- return rx_count;
-}
-
-static uint16_t
-virtual_ethdev_rx_burst_fail(void *queue __rte_unused,
- struct rte_mbuf **bufs __rte_unused,
- uint16_t nb_pkts __rte_unused)
-{
- return 0;
-}
-
-static uint16_t
-virtual_ethdev_tx_burst_success(void *queue, struct rte_mbuf **bufs,
- uint16_t nb_pkts)
-{
- struct virtual_ethdev_queue *tx_q = (struct virtual_ethdev_queue *)queue;
-
- struct rte_eth_dev *vrtl_eth_dev;
- struct virtual_ethdev_private *dev_private;
-
- int i;
-
- vrtl_eth_dev = &rte_eth_devices[tx_q->port_id];
- dev_private = vrtl_eth_dev->data->dev_private;
-
- if (!vrtl_eth_dev->data->dev_link.link_status)
- nb_pkts = 0;
- else
- nb_pkts = rte_ring_enqueue_burst(dev_private->tx_queue, (void **)bufs,
- nb_pkts);
-
- /* increment opacket count */
- dev_private->eth_stats.opackets += nb_pkts;
-
- /* increment obytes count */
- for (i = 0; i < nb_pkts; i++)
- dev_private->eth_stats.obytes += rte_pktmbuf_pkt_len(bufs[i]);
-
- return nb_pkts;
-}
-
-static uint16_t
-virtual_ethdev_tx_burst_fail(void *queue, struct rte_mbuf **bufs,
- uint16_t nb_pkts)
-{
- struct rte_eth_dev *vrtl_eth_dev = NULL;
- struct virtual_ethdev_queue *tx_q = NULL;
- struct virtual_ethdev_private *dev_private = NULL;
-
- int i;
-
- tx_q = (struct virtual_ethdev_queue *)queue;
- vrtl_eth_dev = &rte_eth_devices[tx_q->port_id];
- dev_private = vrtl_eth_dev->data->dev_private;
-
- if (dev_private->tx_burst_fail_count < nb_pkts) {
- int successfully_txd = nb_pkts - dev_private->tx_burst_fail_count;
-
- /* increment opacket count */
- dev_private->eth_stats.opackets += successfully_txd;
-
- /* free packets in burst */
- for (i = 0; i < successfully_txd; i++) {
- /* free packets in burst */
- if (bufs[i] != NULL)
- rte_pktmbuf_free(bufs[i]);
-
- bufs[i] = NULL;
- }
-
- return successfully_txd;
- }
-
- return 0;
-}
-
-
-void
-virtual_ethdev_rx_burst_fn_set_success(uint8_t port_id, uint8_t success)
-{
- struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
-
- if (success)
- vrtl_eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_success;
- else
- vrtl_eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_fail;
-}
-
-
-void
-virtual_ethdev_tx_burst_fn_set_success(uint8_t port_id, uint8_t success)
-{
- struct virtual_ethdev_private *dev_private = NULL;
- struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
-
- dev_private = vrtl_eth_dev->data->dev_private;
-
- if (success)
- vrtl_eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_success;
- else
- vrtl_eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_fail;
-
- dev_private->tx_burst_fail_count = 0;
-}
-
-void
-virtual_ethdev_tx_burst_fn_set_tx_pkt_fail_count(uint8_t port_id,
- uint8_t packet_fail_count)
-{
- struct virtual_ethdev_private *dev_private = NULL;
- struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
-
-
- dev_private = vrtl_eth_dev->data->dev_private;
- dev_private->tx_burst_fail_count = packet_fail_count;
-}
-
-void
-virtual_ethdev_set_link_status(uint8_t port_id, uint8_t link_status)
-{
- struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
-
- vrtl_eth_dev->data->dev_link.link_status = link_status;
-}
-
-void
-virtual_ethdev_simulate_link_status_interrupt(uint8_t port_id,
- uint8_t link_status)
-{
- struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
-
- vrtl_eth_dev->data->dev_link.link_status = link_status;
-
- _rte_eth_dev_callback_process(vrtl_eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
-}
-
-int
-virtual_ethdev_add_mbufs_to_rx_queue(uint8_t port_id,
- struct rte_mbuf **pkt_burst, int burst_length)
-{
- struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
- struct virtual_ethdev_private *dev_private =
- vrtl_eth_dev->data->dev_private;
-
- return rte_ring_enqueue_burst(dev_private->rx_queue, (void **)pkt_burst,
- burst_length);
-}
-
-int
-virtual_ethdev_get_mbufs_from_tx_queue(uint8_t port_id,
- struct rte_mbuf **pkt_burst, int burst_length)
-{
- struct virtual_ethdev_private *dev_private;
- struct rte_eth_dev *vrtl_eth_dev = &rte_eth_devices[port_id];
-
- dev_private = vrtl_eth_dev->data->dev_private;
- return rte_ring_dequeue_burst(dev_private->tx_queue, (void **)pkt_burst,
- burst_length);
-}
-
-static uint8_t
-get_number_of_sockets(void)
-{
- int sockets = 0;
- int i;
- const struct rte_memseg *ms = rte_eal_get_physmem_layout();
-
- for (i = 0; i < RTE_MAX_MEMSEG && ms[i].addr != NULL; i++) {
- if (sockets < ms[i].socket_id)
- sockets = ms[i].socket_id;
- }
- /* Number of sockets = maximum socket_id + 1 */
- return ++sockets;
-}
-
-int
-virtual_ethdev_create(const char *name, struct ether_addr *mac_addr,
- uint8_t socket_id, uint8_t isr_support)
-{
- struct rte_pci_device *pci_dev = NULL;
- struct rte_eth_dev *eth_dev = NULL;
- struct eth_driver *eth_drv = NULL;
- struct rte_pci_driver *pci_drv = NULL;
- struct rte_pci_id *id_table = NULL;
- struct virtual_ethdev_private *dev_private = NULL;
- char name_buf[RTE_RING_NAMESIZE];
-
-
- /* now do all data allocation - for eth_dev structure, dummy pci driver
- * and internal (dev_private) data
- */
-
- if (socket_id >= get_number_of_sockets())
- goto err;
-
- pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, socket_id);
- if (pci_dev == NULL)
- goto err;
-
- eth_drv = rte_zmalloc_socket(name, sizeof(*eth_drv), 0, socket_id);
- if (eth_drv == NULL)
- goto err;
-
- pci_drv = rte_zmalloc_socket(name, sizeof(*pci_drv), 0, socket_id);
- if (pci_drv == NULL)
- goto err;
-
- id_table = rte_zmalloc_socket(name, sizeof(*id_table), 0, socket_id);
- if (id_table == NULL)
- goto err;
- id_table->device_id = 0xBEEF;
-
- dev_private = rte_zmalloc_socket(name, sizeof(*dev_private), 0, socket_id);
- if (dev_private == NULL)
- goto err;
-
- snprintf(name_buf, sizeof(name_buf), "%s_rxQ", name);
- dev_private->rx_queue = rte_ring_create(name_buf, MAX_PKT_BURST, socket_id,
- 0);
- if (dev_private->rx_queue == NULL)
- goto err;
-
- snprintf(name_buf, sizeof(name_buf), "%s_txQ", name);
- dev_private->tx_queue = rte_ring_create(name_buf, MAX_PKT_BURST, socket_id,
- 0);
- if (dev_private->tx_queue == NULL)
- goto err;
-
- /* reserve an ethdev entry */
- eth_dev = rte_eth_dev_allocate(name);
- if (eth_dev == NULL)
- goto err;
-
- pci_dev->device.numa_node = socket_id;
- pci_drv->driver.name = virtual_ethdev_driver_name;
- pci_drv->id_table = id_table;
-
- if (isr_support)
- pci_drv->drv_flags |= RTE_PCI_DRV_INTR_LSC;
- else
- pci_drv->drv_flags &= ~RTE_PCI_DRV_INTR_LSC;
-
-
- eth_drv->pci_drv = (struct rte_pci_driver)(*pci_drv);
- eth_dev->driver = eth_drv;
-
- eth_dev->data->nb_rx_queues = (uint16_t)1;
- eth_dev->data->nb_tx_queues = (uint16_t)1;
-
- TAILQ_INIT(&(eth_dev->link_intr_cbs));
-
- eth_dev->data->dev_link.link_status = ETH_LINK_DOWN;
- eth_dev->data->dev_link.link_speed = ETH_SPEED_NUM_10G;
- eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
-
- eth_dev->data->mac_addrs = rte_zmalloc(name, ETHER_ADDR_LEN, 0);
- if (eth_dev->data->mac_addrs == NULL)
- goto err;
-
- memcpy(eth_dev->data->mac_addrs, mac_addr,
- sizeof(*eth_dev->data->mac_addrs));
-
- eth_dev->data->dev_started = 0;
- eth_dev->data->promiscuous = 0;
- eth_dev->data->scattered_rx = 0;
- eth_dev->data->all_multicast = 0;
-
- eth_dev->data->dev_private = dev_private;
-
- /* Copy default device operation functions */
- dev_private->dev_ops = virtual_ethdev_default_dev_ops;
- eth_dev->dev_ops = &dev_private->dev_ops;
-
- eth_dev->pci_dev = pci_dev;
- eth_dev->pci_dev->device.driver = ð_drv->pci_drv.driver;
-
- eth_dev->rx_pkt_burst = virtual_ethdev_rx_burst_success;
- eth_dev->tx_pkt_burst = virtual_ethdev_tx_burst_success;
-
- return eth_dev->data->port_id;
-
-err:
- rte_free(pci_dev);
- rte_free(pci_drv);
- rte_free(eth_drv);
- rte_free(id_table);
- rte_free(dev_private);
-
- return -1;
-}
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