X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fnull%2Frte_eth_null.c;h=0ce073fa4b08419687670506494f0c786df47d21;hb=858797bbcd9c6e36fb9d283a88edcd0bb89d5d67;hp=ab440f3b1decbace9206ee8fb1020739c109300b;hpb=5cf864186355048ee3f929602928c84af06e94b8;p=dpdk.git diff --git a/drivers/net/null/rte_eth_null.c b/drivers/net/null/rte_eth_null.c index ab440f3b1d..0ce073fa4b 100644 --- a/drivers/net/null/rte_eth_null.c +++ b/drivers/net/null/rte_eth_null.c @@ -1,55 +1,29 @@ -/*- - * BSD LICENSE - * - * Copyright (C) IGEL Co.,Ltd. - * 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 IGEL Co.,Ltd. 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. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright (C) IGEL Co.,Ltd. + * All rights reserved. */ #include -#include +#include +#include #include #include -#include +#include #include #include -#include "rte_eth_null.h" - #define ETH_NULL_PACKET_SIZE_ARG "size" #define ETH_NULL_PACKET_COPY_ARG "copy" +#define ETH_NULL_PACKET_NO_RX_ARG "no-rx" -static unsigned default_packet_size = 64; -static unsigned default_packet_copy; +static unsigned int default_packet_size = 64; +static unsigned int default_packet_copy; +static unsigned int default_no_rx; static const char *valid_arguments[] = { ETH_NULL_PACKET_SIZE_ARG, ETH_NULL_PACKET_COPY_ARG, + ETH_NULL_PACKET_NO_RX_ARG, NULL }; @@ -63,17 +37,24 @@ struct null_queue { rte_atomic64_t rx_pkts; rte_atomic64_t tx_pkts; - rte_atomic64_t err_pkts; +}; + +struct pmd_options { + unsigned int packet_copy; + unsigned int packet_size; + unsigned int no_rx; }; struct pmd_internals { - unsigned packet_size; - unsigned packet_copy; - uint8_t port_id; + unsigned int packet_size; + unsigned int packet_copy; + unsigned int no_rx; + uint16_t port_id; struct null_queue rx_null_queues[RTE_MAX_QUEUES_PER_PORT]; struct null_queue tx_null_queues[RTE_MAX_QUEUES_PER_PORT]; + struct rte_ether_addr eth_addr; /** Bit mask of RSS offloads, the bit offset also means flow type */ uint64_t flow_type_rss_offloads; @@ -85,36 +66,36 @@ struct pmd_internals { uint8_t rss_key[40]; /**< 40-byte hash key. */ }; - - -static struct ether_addr eth_addr = { .addr_bytes = {0} }; -static const char *drivername = "Null PMD"; 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_AUTONEG, + .link_autoneg = ETH_LINK_FIXED, }; +RTE_LOG_REGISTER(eth_null_logtype, pmd.net.null, NOTICE); + +#define PMD_LOG(level, fmt, args...) \ + rte_log(RTE_LOG_ ## level, eth_null_logtype, \ + "%s(): " fmt "\n", __func__, ##args) + static uint16_t eth_null_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) { int i; struct null_queue *h = q; - unsigned packet_size; + unsigned int packet_size; if ((q == NULL) || (bufs == NULL)) return 0; packet_size = h->internals->packet_size; + if (rte_pktmbuf_alloc_bulk(h->mb_pool, bufs, nb_bufs) != 0) + return 0; + for (i = 0; i < nb_bufs; i++) { - bufs[i] = rte_pktmbuf_alloc(h->mb_pool); - if (!bufs[i]) - break; bufs[i]->data_len = (uint16_t)packet_size; bufs[i]->pkt_len = packet_size; - bufs[i]->nb_segs = 1; - bufs[i]->next = NULL; bufs[i]->port = h->internals->port_id; } @@ -128,22 +109,20 @@ eth_null_copy_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) { int i; struct null_queue *h = q; - unsigned packet_size; + unsigned int packet_size; if ((q == NULL) || (bufs == NULL)) return 0; packet_size = h->internals->packet_size; + if (rte_pktmbuf_alloc_bulk(h->mb_pool, bufs, nb_bufs) != 0) + return 0; + for (i = 0; i < nb_bufs; i++) { - bufs[i] = rte_pktmbuf_alloc(h->mb_pool); - if (!bufs[i]) - break; rte_memcpy(rte_pktmbuf_mtod(bufs[i], void *), h->dummy_packet, packet_size); bufs[i]->data_len = (uint16_t)packet_size; bufs[i]->pkt_len = packet_size; - bufs[i]->nb_segs = 1; - bufs[i]->next = NULL; bufs[i]->port = h->internals->port_id; } @@ -152,6 +131,13 @@ eth_null_copy_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) return i; } +static uint16_t +eth_null_no_rx(void *q __rte_unused, struct rte_mbuf **bufs __rte_unused, + uint16_t nb_bufs __rte_unused) +{ + return 0; +} + static uint16_t eth_null_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) { @@ -174,7 +160,7 @@ eth_null_copy_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) { int i; struct null_queue *h = q; - unsigned packet_size; + unsigned int packet_size; if ((q == NULL) || (bufs == NULL)) return 0; @@ -225,7 +211,7 @@ eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id, { struct rte_mbuf *dummy_packet; struct pmd_internals *internals; - unsigned packet_size; + unsigned int packet_size; if ((dev == NULL) || (mb_pool == NULL)) return -EINVAL; @@ -259,7 +245,7 @@ eth_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id, { struct rte_mbuf *dummy_packet; struct pmd_internals *internals; - unsigned packet_size; + unsigned int packet_size; if (dev == NULL) return -EINVAL; @@ -284,40 +270,45 @@ eth_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id, return 0; } +static int +eth_mtu_set(struct rte_eth_dev *dev __rte_unused, uint16_t mtu __rte_unused) +{ + return 0; +} -static void +static int eth_dev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) { struct pmd_internals *internals; if ((dev == NULL) || (dev_info == NULL)) - return; + return -EINVAL; internals = dev->data->dev_private; - dev_info->driver_name = drivername; dev_info->max_mac_addrs = 1; dev_info->max_rx_pktlen = (uint32_t)-1; dev_info->max_rx_queues = RTE_DIM(internals->rx_null_queues); dev_info->max_tx_queues = RTE_DIM(internals->tx_null_queues); dev_info->min_rx_bufsize = 0; - dev_info->pci_dev = NULL; dev_info->reta_size = internals->reta_size; dev_info->flow_type_rss_offloads = internals->flow_type_rss_offloads; + + return 0; } -static void +static int eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *igb_stats) { - unsigned i, num_stats; - unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0; + unsigned int i, num_stats; + unsigned long rx_total = 0, tx_total = 0; const struct pmd_internals *internal; if ((dev == NULL) || (igb_stats == NULL)) - return; + return -EINVAL; internal = dev->data->dev_private; - num_stats = RTE_MIN((unsigned)RTE_ETHDEV_QUEUE_STAT_CNTRS, + num_stats = RTE_MIN((unsigned int)RTE_ETHDEV_QUEUE_STAT_CNTRS, RTE_MIN(dev->data->nb_rx_queues, RTE_DIM(internal->rx_null_queues))); for (i = 0; i < num_stats; i++) { @@ -326,39 +317,37 @@ eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *igb_stats) rx_total += igb_stats->q_ipackets[i]; } - num_stats = RTE_MIN((unsigned)RTE_ETHDEV_QUEUE_STAT_CNTRS, + num_stats = RTE_MIN((unsigned int)RTE_ETHDEV_QUEUE_STAT_CNTRS, RTE_MIN(dev->data->nb_tx_queues, RTE_DIM(internal->tx_null_queues))); for (i = 0; i < num_stats; i++) { igb_stats->q_opackets[i] = internal->tx_null_queues[i].tx_pkts.cnt; - igb_stats->q_errors[i] = - internal->tx_null_queues[i].err_pkts.cnt; tx_total += igb_stats->q_opackets[i]; - tx_err_total += igb_stats->q_errors[i]; } igb_stats->ipackets = rx_total; igb_stats->opackets = tx_total; - igb_stats->oerrors = tx_err_total; + + return 0; } -static void +static int eth_stats_reset(struct rte_eth_dev *dev) { - unsigned i; + unsigned int i; struct pmd_internals *internal; if (dev == NULL) - return; + return -EINVAL; internal = dev->data->dev_private; for (i = 0; i < RTE_DIM(internal->rx_null_queues); i++) internal->rx_null_queues[i].rx_pkts.cnt = 0; - for (i = 0; i < RTE_DIM(internal->tx_null_queues); i++) { + for (i = 0; i < RTE_DIM(internal->tx_null_queues); i++) internal->tx_null_queues[i].tx_pkts.cnt = 0; - internal->tx_null_queues[i].err_pkts.cnt = 0; - } + + return 0; } static void @@ -462,6 +451,13 @@ eth_rss_hash_conf_get(struct rte_eth_dev *dev, return 0; } +static int +eth_mac_address_set(__rte_unused struct rte_eth_dev *dev, + __rte_unused struct rte_ether_addr *addr) +{ + return 0; +} + static const struct eth_dev_ops ops = { .dev_start = eth_dev_start, .dev_stop = eth_dev_stop, @@ -471,7 +467,9 @@ static const struct eth_dev_ops ops = { .tx_queue_setup = eth_tx_queue_setup, .rx_queue_release = eth_queue_release, .tx_queue_release = eth_queue_release, + .mtu_set = eth_mtu_set, .link_update = eth_link_update, + .mac_addr_set = eth_mac_address_set, .stats_get = eth_stats_get, .stats_reset = eth_stats_reset, .reta_update = eth_rss_reta_update, @@ -480,15 +478,12 @@ static const struct eth_dev_ops ops = { .rss_hash_conf_get = eth_rss_hash_conf_get }; -int -eth_dev_null_create(const char *name, - const unsigned numa_node, - unsigned packet_size, - unsigned packet_copy) +static int +eth_dev_null_create(struct rte_vdev_device *dev, struct pmd_options *args) { - const unsigned nb_rx_queues = 1; - const unsigned nb_tx_queues = 1; - struct rte_eth_dev_data *data = NULL; + const unsigned int nb_rx_queues = 1; + const unsigned int nb_tx_queues = 1; + struct rte_eth_dev_data *data; struct pmd_internals *internals = NULL; struct rte_eth_dev *eth_dev = NULL; @@ -499,27 +494,15 @@ eth_dev_null_create(const char *name, 0xBE, 0xAC, 0x01, 0xFA }; - if (name == NULL) - return -EINVAL; - - RTE_LOG(INFO, PMD, "Creating null ethdev on numa socket %u\n", - numa_node); - - /* 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 error; + if (dev->device.numa_node == SOCKET_ID_ANY) + dev->device.numa_node = rte_socket_id(); - internals = rte_zmalloc_socket(name, sizeof(*internals), 0, numa_node); - if (internals == NULL) - goto error; + PMD_LOG(INFO, "Creating null ethdev on numa socket %u", + dev->device.numa_node); - /* reserve an ethdev entry */ - eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_VIRTUAL); - if (eth_dev == NULL) - goto error; + eth_dev = rte_eth_vdev_allocate(dev, sizeof(*internals)); + if (!eth_dev) + return -ENOMEM; /* now put it all together * - store queue data in internals, @@ -530,50 +513,42 @@ eth_dev_null_create(const char *name, /* NOTE: we'll replace the data element, of originally allocated eth_dev * so the nulls are local per-process */ - internals->packet_size = packet_size; - internals->packet_copy = packet_copy; + internals = eth_dev->data->dev_private; + internals->packet_size = args->packet_size; + internals->packet_copy = args->packet_copy; + internals->no_rx = args->no_rx; internals->port_id = eth_dev->data->port_id; + rte_eth_random_addr(internals->eth_addr.addr_bytes); internals->flow_type_rss_offloads = ETH_RSS_PROTO_MASK; internals->reta_size = RTE_DIM(internals->reta_conf) * RTE_RETA_GROUP_SIZE; rte_memcpy(internals->rss_key, default_rss_key, 40); - data->dev_private = internals; - data->port_id = eth_dev->data->port_id; + data = eth_dev->data; data->nb_rx_queues = (uint16_t)nb_rx_queues; data->nb_tx_queues = (uint16_t)nb_tx_queues; data->dev_link = pmd_link; - data->mac_addrs = ð_addr; - strncpy(data->name, eth_dev->data->name, strlen(eth_dev->data->name)); + data->mac_addrs = &internals->eth_addr; + data->promiscuous = 1; + data->all_multicast = 1; - eth_dev->data = data; eth_dev->dev_ops = &ops; - TAILQ_INIT(ð_dev->link_intr_cbs); - - eth_dev->driver = NULL; - data->dev_flags = RTE_ETH_DEV_DETACHABLE; - data->kdrv = RTE_KDRV_NONE; - data->drv_name = drivername; - data->numa_node = numa_node; - /* finally assign rx and tx ops */ - if (packet_copy) { + if (internals->packet_copy) { eth_dev->rx_pkt_burst = eth_null_copy_rx; eth_dev->tx_pkt_burst = eth_null_copy_tx; + } else if (internals->no_rx) { + eth_dev->rx_pkt_burst = eth_null_no_rx; + eth_dev->tx_pkt_burst = eth_null_tx; } else { eth_dev->rx_pkt_burst = eth_null_rx; eth_dev->tx_pkt_burst = eth_null_tx; } + rte_eth_dev_probing_finish(eth_dev); return 0; - -error: - rte_free(data); - rte_free(internals); - - return -1; } static inline int @@ -581,12 +556,12 @@ get_packet_size_arg(const char *key __rte_unused, const char *value, void *extra_args) { const char *a = value; - unsigned *packet_size = extra_args; + unsigned int *packet_size = extra_args; if ((value == NULL) || (extra_args == NULL)) return -EINVAL; - *packet_size = (unsigned)strtoul(a, NULL, 0); + *packet_size = (unsigned int)strtoul(a, NULL, 0); if (*packet_size == UINT_MAX) return -1; @@ -598,12 +573,12 @@ get_packet_copy_arg(const char *key __rte_unused, const char *value, void *extra_args) { const char *a = value; - unsigned *packet_copy = extra_args; + unsigned int *packet_copy = extra_args; if ((value == NULL) || (extra_args == NULL)) return -EINVAL; - *packet_copy = (unsigned)strtoul(a, NULL, 0); + *packet_copy = (unsigned int)strtoul(a, NULL, 0); if (*packet_copy == UINT_MAX) return -1; @@ -611,50 +586,106 @@ get_packet_copy_arg(const char *key __rte_unused, } static int -rte_pmd_null_devinit(const char *name, const char *params) +get_packet_no_rx_arg(const char *key __rte_unused, + const char *value, void *extra_args) { - unsigned numa_node; - unsigned packet_size = default_packet_size; - unsigned packet_copy = default_packet_copy; + const char *a = value; + unsigned int no_rx; + + if (value == NULL || extra_args == NULL) + return -EINVAL; + + no_rx = (unsigned int)strtoul(a, NULL, 0); + if (no_rx != 0 && no_rx != 1) + return -1; + + *(unsigned int *)extra_args = no_rx; + return 0; +} + +static int +rte_pmd_null_probe(struct rte_vdev_device *dev) +{ + const char *name, *params; + struct pmd_options args = { + .packet_copy = default_packet_copy, + .packet_size = default_packet_size, + .no_rx = default_no_rx, + }; struct rte_kvargs *kvlist = NULL; + struct rte_eth_dev *eth_dev; int ret; - if (name == NULL) + if (!dev) return -EINVAL; - RTE_LOG(INFO, PMD, "Initializing pmd_null for %s\n", name); + name = rte_vdev_device_name(dev); + params = rte_vdev_device_args(dev); + PMD_LOG(INFO, "Initializing pmd_null for %s", name); - numa_node = rte_socket_id(); + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { + struct pmd_internals *internals; + eth_dev = rte_eth_dev_attach_secondary(name); + if (!eth_dev) { + PMD_LOG(ERR, "Failed to probe %s", name); + return -1; + } + /* TODO: request info from primary to set up Rx and Tx */ + eth_dev->dev_ops = &ops; + eth_dev->device = &dev->device; + internals = eth_dev->data->dev_private; + if (internals->packet_copy) { + eth_dev->rx_pkt_burst = eth_null_copy_rx; + eth_dev->tx_pkt_burst = eth_null_copy_tx; + } else if (internals->no_rx) { + eth_dev->rx_pkt_burst = eth_null_no_rx; + eth_dev->tx_pkt_burst = eth_null_tx; + } else { + eth_dev->rx_pkt_burst = eth_null_rx; + eth_dev->tx_pkt_burst = eth_null_tx; + } + rte_eth_dev_probing_finish(eth_dev); + return 0; + } if (params != NULL) { kvlist = rte_kvargs_parse(params, valid_arguments); if (kvlist == NULL) return -1; - if (rte_kvargs_count(kvlist, ETH_NULL_PACKET_SIZE_ARG) == 1) { - - ret = rte_kvargs_process(kvlist, - ETH_NULL_PACKET_SIZE_ARG, - &get_packet_size_arg, &packet_size); - if (ret < 0) - goto free_kvlist; - } - - if (rte_kvargs_count(kvlist, ETH_NULL_PACKET_COPY_ARG) == 1) { - - ret = rte_kvargs_process(kvlist, - ETH_NULL_PACKET_COPY_ARG, - &get_packet_copy_arg, &packet_copy); - if (ret < 0) - goto free_kvlist; + ret = rte_kvargs_process(kvlist, + ETH_NULL_PACKET_SIZE_ARG, + &get_packet_size_arg, &args.packet_size); + if (ret < 0) + goto free_kvlist; + + + ret = rte_kvargs_process(kvlist, + ETH_NULL_PACKET_COPY_ARG, + &get_packet_copy_arg, &args.packet_copy); + if (ret < 0) + goto free_kvlist; + + ret = rte_kvargs_process(kvlist, + ETH_NULL_PACKET_NO_RX_ARG, + &get_packet_no_rx_arg, &args.no_rx); + if (ret < 0) + goto free_kvlist; + + if (args.no_rx && args.packet_copy) { + PMD_LOG(ERR, + "Both %s and %s arguments at the same time not supported", + ETH_NULL_PACKET_COPY_ARG, + ETH_NULL_PACKET_NO_RX_ARG); + goto free_kvlist; } } - RTE_LOG(INFO, PMD, "Configure pmd_null: packet size is %d, " - "packet copy is %s\n", packet_size, - packet_copy ? "enabled" : "disabled"); + PMD_LOG(INFO, "Configure pmd_null: packet size is %d, " + "packet copy is %s", args.packet_size, + args.packet_copy ? "enabled" : "disabled"); - ret = eth_dev_null_create(name, numa_node, packet_size, packet_copy); + ret = eth_dev_null_create(dev, &args); free_kvlist: if (kvlist) @@ -663,34 +694,38 @@ free_kvlist: } static int -rte_pmd_null_devuninit(const char *name) +rte_pmd_null_remove(struct rte_vdev_device *dev) { struct rte_eth_dev *eth_dev = NULL; - if (name == NULL) + if (!dev) return -EINVAL; - RTE_LOG(INFO, PMD, "Closing null ethdev on numa socket %u\n", + PMD_LOG(INFO, "Closing null ethdev on numa socket %u", rte_socket_id()); /* find the ethdev entry */ - eth_dev = rte_eth_dev_allocated(name); + eth_dev = rte_eth_dev_allocated(rte_vdev_device_name(dev)); if (eth_dev == NULL) return -1; - rte_free(eth_dev->data->dev_private); - rte_free(eth_dev->data); + if (rte_eal_process_type() == RTE_PROC_PRIMARY) + /* mac_addrs must not be freed alone because part of dev_private */ + eth_dev->data->mac_addrs = NULL; rte_eth_dev_release_port(eth_dev); return 0; } -static struct rte_driver pmd_null_drv = { - .name = "eth_null", - .type = PMD_VDEV, - .init = rte_pmd_null_devinit, - .uninit = rte_pmd_null_devuninit, +static struct rte_vdev_driver pmd_null_drv = { + .probe = rte_pmd_null_probe, + .remove = rte_pmd_null_remove, }; -PMD_REGISTER_DRIVER(pmd_null_drv); +RTE_PMD_REGISTER_VDEV(net_null, pmd_null_drv); +RTE_PMD_REGISTER_ALIAS(net_null, eth_null); +RTE_PMD_REGISTER_PARAM_STRING(net_null, + "size= " + "copy= " + ETH_NULL_PACKET_NO_RX_ARG "=0|1");