X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest%2Fvirtual_pmd.c;fp=test%2Ftest%2Fvirtual_pmd.c;h=e9dd8ac30cf988179a5392fb0f12257f19eda704;hb=7595afa4d30097c1177b69257118d8ad89a539be;hp=0000000000000000000000000000000000000000;hpb=ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6;p=deb_dpdk.git diff --git a/test/test/virtual_pmd.c b/test/test/virtual_pmd.c new file mode 100644 index 00000000..e9dd8ac3 --- /dev/null +++ b/test/test/virtual_pmd.c @@ -0,0 +1,635 @@ +/*- + * 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 +#include +#include +#include +#include +#include + +#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; +} + +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, NULL); + + /* 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 = 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, NULL); + + /* 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 = 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, NULL); +} + +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, NULL); +} + +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 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; + + 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_dev->device = &pci_dev->device; + eth_dev->device->driver = &pci_drv->driver; + + eth_dev->data->nb_rx_queues = (uint16_t)1; + eth_dev->data->nb_tx_queues = (uint16_t)1; + + 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; + + pci_dev->device.driver = &pci_drv->driver; + eth_dev->device = &pci_dev->device; + + 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(id_table); + rte_free(dev_private); + + return -1; +}