diff options
Diffstat (limited to 'src/spdk/dpdk/drivers/net/ring')
| -rw-r--r-- | src/spdk/dpdk/drivers/net/ring/Makefile | 29 | ||||
| -rw-r--r-- | src/spdk/dpdk/drivers/net/ring/meson.build | 5 | ||||
| -rw-r--r-- | src/spdk/dpdk/drivers/net/ring/rte_eth_ring.c | 711 | ||||
| -rw-r--r-- | src/spdk/dpdk/drivers/net/ring/rte_eth_ring.h | 57 | ||||
| -rw-r--r-- | src/spdk/dpdk/drivers/net/ring/rte_pmd_ring_version.map | 8 |
5 files changed, 810 insertions, 0 deletions
diff --git a/src/spdk/dpdk/drivers/net/ring/Makefile b/src/spdk/dpdk/drivers/net/ring/Makefile new file mode 100644 index 000000000..d6a3dec35 --- /dev/null +++ b/src/spdk/dpdk/drivers/net/ring/Makefile @@ -0,0 +1,29 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2010-2014 Intel Corporation + +include $(RTE_SDK)/mk/rte.vars.mk + +# +# library name +# +LIB = librte_pmd_ring.a + +CFLAGS += -O3 +CFLAGS += $(WERROR_FLAGS) +LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring +LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs +LDLIBS += -lrte_bus_vdev + +EXPORT_MAP := rte_pmd_ring_version.map + +# +# all source are stored in SRCS-y +# +SRCS-$(CONFIG_RTE_LIBRTE_PMD_RING) += rte_eth_ring.c + +# +# Export include files +# +SYMLINK-y-include += rte_eth_ring.h + +include $(RTE_SDK)/mk/rte.lib.mk diff --git a/src/spdk/dpdk/drivers/net/ring/meson.build b/src/spdk/dpdk/drivers/net/ring/meson.build new file mode 100644 index 000000000..e877a4b4b --- /dev/null +++ b/src/spdk/dpdk/drivers/net/ring/meson.build @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2017 Intel Corporation + +sources = files('rte_eth_ring.c') +install_headers('rte_eth_ring.h') diff --git a/src/spdk/dpdk/drivers/net/ring/rte_eth_ring.c b/src/spdk/dpdk/drivers/net/ring/rte_eth_ring.c new file mode 100644 index 000000000..f0fafa0c0 --- /dev/null +++ b/src/spdk/dpdk/drivers/net/ring/rte_eth_ring.c @@ -0,0 +1,711 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2015 Intel Corporation + */ + +#include "rte_eth_ring.h" +#include <rte_mbuf.h> +#include <rte_ethdev_driver.h> +#include <rte_malloc.h> +#include <rte_memcpy.h> +#include <rte_string_fns.h> +#include <rte_bus_vdev.h> +#include <rte_kvargs.h> +#include <rte_errno.h> + +#define ETH_RING_NUMA_NODE_ACTION_ARG "nodeaction" +#define ETH_RING_ACTION_CREATE "CREATE" +#define ETH_RING_ACTION_ATTACH "ATTACH" +#define ETH_RING_INTERNAL_ARG "internal" + +static const char *valid_arguments[] = { + ETH_RING_NUMA_NODE_ACTION_ARG, + ETH_RING_INTERNAL_ARG, + NULL +}; + +struct ring_internal_args { + struct rte_ring * const *rx_queues; + const unsigned int nb_rx_queues; + struct rte_ring * const *tx_queues; + const unsigned int nb_tx_queues; + const unsigned int numa_node; + void *addr; /* self addr for sanity check */ +}; + +enum dev_action { + DEV_CREATE, + DEV_ATTACH +}; + +struct ring_queue { + struct rte_ring *rng; + rte_atomic64_t rx_pkts; + rte_atomic64_t tx_pkts; +}; + +struct pmd_internals { + unsigned int max_rx_queues; + unsigned int max_tx_queues; + + struct ring_queue rx_ring_queues[RTE_PMD_RING_MAX_RX_RINGS]; + struct ring_queue tx_ring_queues[RTE_PMD_RING_MAX_TX_RINGS]; + + struct rte_ether_addr address; + enum dev_action action; +}; + +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_FIXED, +}; + +static int eth_ring_logtype; + +#define PMD_LOG(level, fmt, args...) \ + rte_log(RTE_LOG_ ## level, eth_ring_logtype, \ + "%s(): " fmt "\n", __func__, ##args) + +static uint16_t +eth_ring_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) +{ + void **ptrs = (void *)&bufs[0]; + struct ring_queue *r = q; + const uint16_t nb_rx = (uint16_t)rte_ring_dequeue_burst(r->rng, + ptrs, nb_bufs, NULL); + if (r->rng->flags & RING_F_SC_DEQ) + r->rx_pkts.cnt += nb_rx; + else + rte_atomic64_add(&(r->rx_pkts), nb_rx); + return nb_rx; +} + +static uint16_t +eth_ring_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) +{ + void **ptrs = (void *)&bufs[0]; + struct ring_queue *r = q; + const uint16_t nb_tx = (uint16_t)rte_ring_enqueue_burst(r->rng, + ptrs, nb_bufs, NULL); + if (r->rng->flags & RING_F_SP_ENQ) + r->tx_pkts.cnt += nb_tx; + else + rte_atomic64_add(&(r->tx_pkts), nb_tx); + return nb_tx; +} + +static int +eth_dev_configure(struct rte_eth_dev *dev __rte_unused) { return 0; } + +static int +eth_dev_start(struct rte_eth_dev *dev) +{ + dev->data->dev_link.link_status = ETH_LINK_UP; + return 0; +} + +static void +eth_dev_stop(struct rte_eth_dev *dev) +{ + dev->data->dev_link.link_status = ETH_LINK_DOWN; +} + +static int +eth_dev_set_link_down(struct rte_eth_dev *dev) +{ + dev->data->dev_link.link_status = ETH_LINK_DOWN; + return 0; +} + +static int +eth_dev_set_link_up(struct rte_eth_dev *dev) +{ + dev->data->dev_link.link_status = ETH_LINK_UP; + return 0; +} + +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 __rte_unused) +{ + struct pmd_internals *internals = dev->data->dev_private; + + dev->data->rx_queues[rx_queue_id] = &internals->rx_ring_queues[rx_queue_id]; + 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) +{ + struct pmd_internals *internals = dev->data->dev_private; + + dev->data->tx_queues[tx_queue_id] = &internals->tx_ring_queues[tx_queue_id]; + return 0; +} + + +static int +eth_dev_info(struct rte_eth_dev *dev, + struct rte_eth_dev_info *dev_info) +{ + struct pmd_internals *internals = dev->data->dev_private; + + dev_info->max_mac_addrs = 1; + dev_info->max_rx_pktlen = (uint32_t)-1; + dev_info->max_rx_queues = (uint16_t)internals->max_rx_queues; + dev_info->max_tx_queues = (uint16_t)internals->max_tx_queues; + dev_info->min_rx_bufsize = 0; + + return 0; +} + +static int +eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) +{ + unsigned int i; + unsigned long rx_total = 0, tx_total = 0; + const struct pmd_internals *internal = dev->data->dev_private; + + for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && + i < dev->data->nb_rx_queues; i++) { + stats->q_ipackets[i] = internal->rx_ring_queues[i].rx_pkts.cnt; + rx_total += stats->q_ipackets[i]; + } + + for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && + i < dev->data->nb_tx_queues; i++) { + stats->q_opackets[i] = internal->tx_ring_queues[i].tx_pkts.cnt; + tx_total += stats->q_opackets[i]; + } + + stats->ipackets = rx_total; + stats->opackets = tx_total; + + return 0; +} + +static int +eth_stats_reset(struct rte_eth_dev *dev) +{ + unsigned int i; + struct pmd_internals *internal = dev->data->dev_private; + + for (i = 0; i < dev->data->nb_rx_queues; i++) + internal->rx_ring_queues[i].rx_pkts.cnt = 0; + for (i = 0; i < dev->data->nb_tx_queues; i++) + internal->tx_ring_queues[i].tx_pkts.cnt = 0; + + return 0; +} + +static void +eth_mac_addr_remove(struct rte_eth_dev *dev __rte_unused, + uint32_t index __rte_unused) +{ +} + +static int +eth_mac_addr_add(struct rte_eth_dev *dev __rte_unused, + struct rte_ether_addr *mac_addr __rte_unused, + uint32_t index __rte_unused, + uint32_t vmdq __rte_unused) +{ + return 0; +} + +static void +eth_queue_release(void *q __rte_unused) { ; } +static int +eth_link_update(struct rte_eth_dev *dev __rte_unused, + int wait_to_complete __rte_unused) { return 0; } + +static const struct eth_dev_ops ops = { + .dev_start = eth_dev_start, + .dev_stop = eth_dev_stop, + .dev_set_link_up = eth_dev_set_link_up, + .dev_set_link_down = eth_dev_set_link_down, + .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, + .mac_addr_remove = eth_mac_addr_remove, + .mac_addr_add = eth_mac_addr_add, +}; + +static int +do_eth_dev_ring_create(const char *name, + struct rte_vdev_device *vdev, + struct rte_ring * const rx_queues[], + const unsigned int nb_rx_queues, + struct rte_ring *const tx_queues[], + const unsigned int nb_tx_queues, + const unsigned int numa_node, enum dev_action action, + struct rte_eth_dev **eth_dev_p) +{ + struct rte_eth_dev_data *data = NULL; + struct pmd_internals *internals = NULL; + struct rte_eth_dev *eth_dev = NULL; + void **rx_queues_local = NULL; + void **tx_queues_local = NULL; + unsigned int i; + + PMD_LOG(INFO, "Creating rings-backed ethdev on numa socket %u", + numa_node); + + rx_queues_local = rte_calloc_socket(name, nb_rx_queues, + sizeof(void *), 0, numa_node); + if (rx_queues_local == NULL) { + rte_errno = ENOMEM; + goto error; + } + + tx_queues_local = rte_calloc_socket(name, nb_tx_queues, + sizeof(void *), 0, numa_node); + if (tx_queues_local == NULL) { + rte_errno = ENOMEM; + goto error; + } + + internals = rte_zmalloc_socket(name, sizeof(*internals), 0, numa_node); + if (internals == NULL) { + rte_errno = ENOMEM; + goto error; + } + + /* reserve an ethdev entry */ + eth_dev = rte_eth_dev_allocate(name); + if (eth_dev == NULL) { + rte_errno = ENOSPC; + goto error; + } + + /* now put it all together + * - store EAL device in eth_dev, + * - store queue data in internals, + * - store numa_node info in eth_dev_data + * - point eth_dev_data to internals + * - and point eth_dev structure to new eth_dev_data structure + */ + + eth_dev->device = &vdev->device; + + data = eth_dev->data; + data->rx_queues = rx_queues_local; + data->tx_queues = tx_queues_local; + + internals->action = action; + internals->max_rx_queues = nb_rx_queues; + internals->max_tx_queues = nb_tx_queues; + for (i = 0; i < nb_rx_queues; i++) { + internals->rx_ring_queues[i].rng = rx_queues[i]; + data->rx_queues[i] = &internals->rx_ring_queues[i]; + } + for (i = 0; i < nb_tx_queues; i++) { + internals->tx_ring_queues[i].rng = tx_queues[i]; + data->tx_queues[i] = &internals->tx_ring_queues[i]; + } + + data->dev_private = internals; + 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 = &internals->address; + data->promiscuous = 1; + data->all_multicast = 1; + + eth_dev->dev_ops = &ops; + data->kdrv = RTE_KDRV_NONE; + data->numa_node = numa_node; + + /* finally assign rx and tx ops */ + eth_dev->rx_pkt_burst = eth_ring_rx; + eth_dev->tx_pkt_burst = eth_ring_tx; + + rte_eth_dev_probing_finish(eth_dev); + *eth_dev_p = eth_dev; + + return data->port_id; + +error: + rte_free(rx_queues_local); + rte_free(tx_queues_local); + rte_free(internals); + + return -1; +} + +int +rte_eth_from_rings(const char *name, struct rte_ring *const rx_queues[], + const unsigned int nb_rx_queues, + struct rte_ring *const tx_queues[], + const unsigned int nb_tx_queues, + const unsigned int numa_node) +{ + struct ring_internal_args args = { + .rx_queues = rx_queues, + .nb_rx_queues = nb_rx_queues, + .tx_queues = tx_queues, + .nb_tx_queues = nb_tx_queues, + .numa_node = numa_node, + .addr = &args, + }; + char args_str[32]; + char ring_name[RTE_RING_NAMESIZE]; + uint16_t port_id = RTE_MAX_ETHPORTS; + int ret; + + /* do some parameter checking */ + if (rx_queues == NULL && nb_rx_queues > 0) { + rte_errno = EINVAL; + return -1; + } + if (tx_queues == NULL && nb_tx_queues > 0) { + rte_errno = EINVAL; + return -1; + } + if (nb_rx_queues > RTE_PMD_RING_MAX_RX_RINGS) { + rte_errno = EINVAL; + return -1; + } + + snprintf(args_str, sizeof(args_str), "%s=%p", + ETH_RING_INTERNAL_ARG, &args); + + ret = snprintf(ring_name, sizeof(ring_name), "net_ring_%s", name); + if (ret >= (int)sizeof(ring_name)) { + rte_errno = ENAMETOOLONG; + return -1; + } + + ret = rte_vdev_init(ring_name, args_str); + if (ret) { + rte_errno = EINVAL; + return -1; + } + + ret = rte_eth_dev_get_port_by_name(ring_name, &port_id); + if (ret) { + rte_errno = ENODEV; + return -1; + } + + return port_id; +} + +int +rte_eth_from_ring(struct rte_ring *r) +{ + return rte_eth_from_rings(r->name, &r, 1, &r, 1, + r->memzone ? r->memzone->socket_id : SOCKET_ID_ANY); +} + +static int +eth_dev_ring_create(const char *name, + struct rte_vdev_device *vdev, + const unsigned int numa_node, + enum dev_action action, struct rte_eth_dev **eth_dev) +{ + /* rx and tx are so-called from point of view of first port. + * They are inverted from the point of view of second port + */ + struct rte_ring *rxtx[RTE_PMD_RING_MAX_RX_RINGS]; + unsigned int i; + char rng_name[RTE_RING_NAMESIZE]; + unsigned int num_rings = RTE_MIN(RTE_PMD_RING_MAX_RX_RINGS, + RTE_PMD_RING_MAX_TX_RINGS); + + for (i = 0; i < num_rings; i++) { + int cc; + + cc = snprintf(rng_name, sizeof(rng_name), + "ETH_RXTX%u_%s", i, name); + if (cc >= (int)sizeof(rng_name)) { + rte_errno = ENAMETOOLONG; + return -1; + } + + rxtx[i] = (action == DEV_CREATE) ? + rte_ring_create(rng_name, 1024, numa_node, + RING_F_SP_ENQ|RING_F_SC_DEQ) : + rte_ring_lookup(rng_name); + if (rxtx[i] == NULL) + return -1; + } + + if (do_eth_dev_ring_create(name, vdev, rxtx, num_rings, rxtx, num_rings, + numa_node, action, eth_dev) < 0) + return -1; + + return 0; +} + +struct node_action_pair { + char name[PATH_MAX]; + unsigned int node; + enum dev_action action; +}; + +struct node_action_list { + unsigned int total; + unsigned int count; + struct node_action_pair *list; +}; + +static int parse_kvlist(const char *key __rte_unused, + const char *value, void *data) +{ + struct node_action_list *info = data; + int ret; + char *name; + char *action; + char *node; + char *end; + + name = strdup(value); + + ret = -EINVAL; + + if (!name) { + PMD_LOG(WARNING, "command line parameter is empty for ring pmd!"); + goto out; + } + + node = strchr(name, ':'); + if (!node) { + PMD_LOG(WARNING, "could not parse node value from %s", + name); + goto out; + } + + *node = '\0'; + node++; + + action = strchr(node, ':'); + if (!action) { + PMD_LOG(WARNING, "could not parse action value from %s", + node); + goto out; + } + + *action = '\0'; + action++; + + /* + * Need to do some sanity checking here + */ + + if (strcmp(action, ETH_RING_ACTION_ATTACH) == 0) + info->list[info->count].action = DEV_ATTACH; + else if (strcmp(action, ETH_RING_ACTION_CREATE) == 0) + info->list[info->count].action = DEV_CREATE; + else + goto out; + + errno = 0; + info->list[info->count].node = strtol(node, &end, 10); + + if ((errno != 0) || (*end != '\0')) { + PMD_LOG(WARNING, + "node value %s is unparseable as a number", node); + goto out; + } + + strlcpy(info->list[info->count].name, name, + sizeof(info->list[info->count].name)); + + info->count++; + + ret = 0; +out: + free(name); + return ret; +} + +static int +parse_internal_args(const char *key __rte_unused, const char *value, + void *data) +{ + struct ring_internal_args **internal_args = data; + void *args; + + sscanf(value, "%p", &args); + + *internal_args = args; + + if ((*internal_args)->addr != args) + return -1; + + return 0; +} + +static int +rte_pmd_ring_probe(struct rte_vdev_device *dev) +{ + const char *name, *params; + struct rte_kvargs *kvlist = NULL; + int ret = 0; + struct node_action_list *info = NULL; + struct rte_eth_dev *eth_dev = NULL; + struct ring_internal_args *internal_args; + + name = rte_vdev_device_name(dev); + params = rte_vdev_device_args(dev); + + PMD_LOG(INFO, "Initializing pmd_ring for %s", name); + + if (params == NULL || params[0] == '\0') { + ret = eth_dev_ring_create(name, dev, rte_socket_id(), DEV_CREATE, + ð_dev); + if (ret == -1) { + PMD_LOG(INFO, + "Attach to pmd_ring for %s", name); + ret = eth_dev_ring_create(name, dev, rte_socket_id(), + DEV_ATTACH, ð_dev); + } + } else { + kvlist = rte_kvargs_parse(params, valid_arguments); + + if (!kvlist) { + PMD_LOG(INFO, + "Ignoring unsupported parameters when creatingrings-backed ethernet device"); + ret = eth_dev_ring_create(name, dev, rte_socket_id(), + DEV_CREATE, ð_dev); + if (ret == -1) { + PMD_LOG(INFO, + "Attach to pmd_ring for %s", + name); + ret = eth_dev_ring_create(name, dev, rte_socket_id(), + DEV_ATTACH, ð_dev); + } + + return ret; + } + + if (rte_kvargs_count(kvlist, ETH_RING_INTERNAL_ARG) == 1) { + ret = rte_kvargs_process(kvlist, ETH_RING_INTERNAL_ARG, + parse_internal_args, + &internal_args); + if (ret < 0) + goto out_free; + + ret = do_eth_dev_ring_create(name, dev, + internal_args->rx_queues, + internal_args->nb_rx_queues, + internal_args->tx_queues, + internal_args->nb_tx_queues, + internal_args->numa_node, + DEV_ATTACH, + ð_dev); + if (ret >= 0) + ret = 0; + } else { + ret = rte_kvargs_count(kvlist, ETH_RING_NUMA_NODE_ACTION_ARG); + info = rte_zmalloc("struct node_action_list", + sizeof(struct node_action_list) + + (sizeof(struct node_action_pair) * ret), + 0); + if (!info) + goto out_free; + + info->total = ret; + info->list = (struct node_action_pair *)(info + 1); + + ret = rte_kvargs_process(kvlist, ETH_RING_NUMA_NODE_ACTION_ARG, + parse_kvlist, info); + + if (ret < 0) + goto out_free; + + for (info->count = 0; info->count < info->total; info->count++) { + ret = eth_dev_ring_create(info->list[info->count].name, + dev, + info->list[info->count].node, + info->list[info->count].action, + ð_dev); + if ((ret == -1) && + (info->list[info->count].action == DEV_CREATE)) { + PMD_LOG(INFO, + "Attach to pmd_ring for %s", + name); + ret = eth_dev_ring_create(name, dev, + info->list[info->count].node, + DEV_ATTACH, + ð_dev); + } + } + } + } + +out_free: + rte_kvargs_free(kvlist); + rte_free(info); + return ret; +} + +static int +rte_pmd_ring_remove(struct rte_vdev_device *dev) +{ + const char *name = rte_vdev_device_name(dev); + struct rte_eth_dev *eth_dev = NULL; + struct pmd_internals *internals = NULL; + struct ring_queue *r = NULL; + uint16_t i; + + PMD_LOG(INFO, "Un-Initializing pmd_ring for %s", name); + + if (name == NULL) + return -EINVAL; + + /* find an ethdev entry */ + eth_dev = rte_eth_dev_allocated(name); + if (eth_dev == NULL) + return -ENODEV; + + eth_dev_stop(eth_dev); + + internals = eth_dev->data->dev_private; + if (internals->action == DEV_CREATE) { + /* + * it is only necessary to delete the rings in rx_queues because + * they are the same used in tx_queues + */ + for (i = 0; i < eth_dev->data->nb_rx_queues; i++) { + r = eth_dev->data->rx_queues[i]; + rte_ring_free(r->rng); + } + } + + /* 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_vdev_driver pmd_ring_drv = { + .probe = rte_pmd_ring_probe, + .remove = rte_pmd_ring_remove, +}; + +RTE_PMD_REGISTER_VDEV(net_ring, pmd_ring_drv); +RTE_PMD_REGISTER_ALIAS(net_ring, eth_ring); +RTE_PMD_REGISTER_PARAM_STRING(net_ring, + ETH_RING_NUMA_NODE_ACTION_ARG "=name:node:action(ATTACH|CREATE)"); + +RTE_INIT(eth_ring_init_log) +{ + eth_ring_logtype = rte_log_register("pmd.net.ring"); + if (eth_ring_logtype >= 0) + rte_log_set_level(eth_ring_logtype, RTE_LOG_NOTICE); +} diff --git a/src/spdk/dpdk/drivers/net/ring/rte_eth_ring.h b/src/spdk/dpdk/drivers/net/ring/rte_eth_ring.h new file mode 100644 index 000000000..59e074d0a --- /dev/null +++ b/src/spdk/dpdk/drivers/net/ring/rte_eth_ring.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +#ifndef _RTE_ETH_RING_H_ +#define _RTE_ETH_RING_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include <rte_ring.h> + +/** + * Create a new ethdev port from a set of rings + * + * @param name + * name to be given to the new ethdev port + * @param rx_queues + * pointer to array of rte_rings to be used as RX queues + * @param nb_rx_queues + * number of elements in the rx_queues array + * @param tx_queues + * pointer to array of rte_rings to be used as TX queues + * @param nb_tx_queues + * number of elements in the tx_queues array + * @param numa_node + * the numa node on which the memory for this port is to be allocated + * @return + * the port number of the newly created the ethdev or -1 on error. + */ +int rte_eth_from_rings(const char *name, + struct rte_ring * const rx_queues[], + const unsigned nb_rx_queues, + struct rte_ring *const tx_queues[], + const unsigned nb_tx_queues, + const unsigned numa_node); + +/** + * Create a new ethdev port from a ring + * + * This function is a shortcut call for rte_eth_from_rings for the + * case where one wants to take a single rte_ring and use it as though + * it were an ethdev + * + * @param ring + * the ring to be used as an ethdev + * @return + * the port number of the newly created ethdev, or -1 on error + */ +int rte_eth_from_ring(struct rte_ring *r); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/src/spdk/dpdk/drivers/net/ring/rte_pmd_ring_version.map b/src/spdk/dpdk/drivers/net/ring/rte_pmd_ring_version.map new file mode 100644 index 000000000..ebb6be273 --- /dev/null +++ b/src/spdk/dpdk/drivers/net/ring/rte_pmd_ring_version.map @@ -0,0 +1,8 @@ +DPDK_20.0 { + global: + + rte_eth_from_ring; + rte_eth_from_rings; + + local: *; +}; |