diff options
author | Hanoh Haim <hhaim@cisco.com> | 2015-06-24 14:03:29 +0300 |
---|---|---|
committer | Hanoh Haim <hhaim@cisco.com> | 2015-06-24 14:03:29 +0300 |
commit | 8b52a31ed2c299b759f330c4f976b9c70f5765f4 (patch) | |
tree | 9d6da5438b5b56b1d2d57e6c13494b4e65d000e7 /src/dpdk_lib18/librte_pmd_ring |
first version
Diffstat (limited to 'src/dpdk_lib18/librte_pmd_ring')
-rwxr-xr-x | src/dpdk_lib18/librte_pmd_ring/Makefile | 57 | ||||
-rwxr-xr-x | src/dpdk_lib18/librte_pmd_ring/rte_eth_ring.c | 530 | ||||
-rwxr-xr-x | src/dpdk_lib18/librte_pmd_ring/rte_eth_ring.h | 63 |
3 files changed, 650 insertions, 0 deletions
diff --git a/src/dpdk_lib18/librte_pmd_ring/Makefile b/src/dpdk_lib18/librte_pmd_ring/Makefile new file mode 100755 index 00000000..b57e4210 --- /dev/null +++ b/src/dpdk_lib18/librte_pmd_ring/Makefile @@ -0,0 +1,57 @@ +# 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_SDK)/mk/rte.vars.mk + +# +# library name +# +LIB = librte_pmd_ring.a + +CFLAGS += -O3 +CFLAGS += $(WERROR_FLAGS) + +# +# all source are stored in SRCS-y +# +SRCS-$(CONFIG_RTE_LIBRTE_PMD_RING) += rte_eth_ring.c + +# +# Export include files +# +SYMLINK-y-include += rte_eth_ring.h + +# this lib depends upon: +DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += lib/librte_eal lib/librte_ring +DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += lib/librte_mbuf lib/librte_ether +DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += lib/librte_kvargs + +include $(RTE_SDK)/mk/rte.lib.mk diff --git a/src/dpdk_lib18/librte_pmd_ring/rte_eth_ring.c b/src/dpdk_lib18/librte_pmd_ring/rte_eth_ring.c new file mode 100755 index 00000000..4f1b6ed8 --- /dev/null +++ b/src/dpdk_lib18/librte_pmd_ring/rte_eth_ring.c @@ -0,0 +1,530 @@ +/*- + * 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_eth_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_dev.h> +#include <rte_kvargs.h> + +#define ETH_RING_NUMA_NODE_ACTION_ARG "nodeaction" +#define ETH_RING_ACTION_CREATE "CREATE" +#define ETH_RING_ACTION_ATTACH "ATTACH" + +static const char *valid_arguments[] = { + ETH_RING_NUMA_NODE_ACTION_ARG, + NULL +}; + +struct ring_queue { + struct rte_ring *rng; + rte_atomic64_t rx_pkts; + rte_atomic64_t tx_pkts; + rte_atomic64_t err_pkts; +}; + +struct pmd_internals { + unsigned nb_rx_queues; + unsigned nb_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]; +}; + + +static struct ether_addr eth_addr = { .addr_bytes = {0} }; +static const char *drivername = "Rings PMD"; +static struct rte_eth_link pmd_link = { + .link_speed = 10000, + .link_duplex = ETH_LINK_FULL_DUPLEX, + .link_status = 0 +}; + +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); + 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); + if (r->rng->flags & RING_F_SP_ENQ) { + r->tx_pkts.cnt += nb_tx; + r->err_pkts.cnt += nb_bufs - nb_tx; + } else { + rte_atomic64_add(&(r->tx_pkts), nb_tx); + rte_atomic64_add(&(r->err_pkts), nb_bufs - 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 = 1; + return 0; +} + +static void +eth_dev_stop(struct rte_eth_dev *dev) +{ + dev->data->dev_link.link_status = 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 void +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->driver_name = drivername; + dev_info->max_mac_addrs = 1; + dev_info->max_rx_pktlen = (uint32_t)-1; + dev_info->max_rx_queues = (uint16_t)internals->nb_rx_queues; + dev_info->max_tx_queues = (uint16_t)internals->nb_tx_queues; + dev_info->min_rx_bufsize = 0; + dev_info->pci_dev = NULL; +} + +static void +eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *igb_stats) +{ + unsigned i; + unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0; + const struct pmd_internals *internal = dev->data->dev_private; + + memset(igb_stats, 0, sizeof(*igb_stats)); + for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && + i < internal->nb_rx_queues; i++) { + igb_stats->q_ipackets[i] = internal->rx_ring_queues[i].rx_pkts.cnt; + rx_total += igb_stats->q_ipackets[i]; + } + + for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && + i < internal->nb_tx_queues; i++) { + igb_stats->q_opackets[i] = internal->tx_ring_queues[i].tx_pkts.cnt; + igb_stats->q_errors[i] = internal->tx_ring_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; +} + +static void +eth_stats_reset(struct rte_eth_dev *dev) +{ + unsigned i; + struct pmd_internals *internal = dev->data->dev_private; + for (i = 0; i < internal->nb_rx_queues; i++) + internal->rx_ring_queues[i].rx_pkts.cnt = 0; + for (i = 0; i < internal->nb_tx_queues; i++) { + internal->tx_ring_queues[i].tx_pkts.cnt = 0; + internal->tx_ring_queues[i].err_pkts.cnt = 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 struct eth_dev_ops ops = { + .dev_start = eth_dev_start, + .dev_stop = eth_dev_stop, + .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, +}; + +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) +{ + struct rte_eth_dev_data *data = NULL; + struct rte_pci_device *pci_dev = NULL; + struct pmd_internals *internals = NULL; + struct rte_eth_dev *eth_dev = NULL; + unsigned i; + + /* do some parameter checking */ + if (rx_queues == NULL && nb_rx_queues > 0) + goto error; + if (tx_queues == NULL && nb_tx_queues > 0) + goto error; + + RTE_LOG(INFO, PMD, "Creating rings-backed 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; + + pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, numa_node); + if (pci_dev == NULL) + goto error; + + internals = rte_zmalloc_socket(name, sizeof(*internals), 0, numa_node); + if (internals == NULL) + goto error; + + /* reserve an ethdev entry */ + eth_dev = rte_eth_dev_allocate(name); + if (eth_dev == NULL) + goto error; + + /* now put it all together + * - store queue data in internals, + * - store numa_node info in pci_driver + * - point eth_dev_data to internals and pci_driver + * - and point eth_dev structure to new eth_dev_data structure + */ + /* NOTE: we'll replace the data element, of originally allocated eth_dev + * so the rings are local per-process */ + + internals->nb_rx_queues = nb_rx_queues; + internals->nb_tx_queues = nb_tx_queues; + for (i = 0; i < nb_rx_queues; i++) { + internals->rx_ring_queues[i].rng = rx_queues[i]; + } + for (i = 0; i < nb_tx_queues; i++) { + internals->tx_ring_queues[i].rng = tx_queues[i]; + } + + pci_dev->numa_node = numa_node; + + data->dev_private = internals; + data->port_id = eth_dev->data->port_id; + 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; + + eth_dev ->data = data; + eth_dev ->dev_ops = &ops; + eth_dev ->pci_dev = pci_dev; + + /* finally assign rx and tx ops */ + eth_dev->rx_pkt_burst = eth_ring_rx; + eth_dev->tx_pkt_burst = eth_ring_tx; + + return 0; + +error: + if (data) + rte_free(data); + if (pci_dev) + rte_free(pci_dev); + if (internals) + rte_free(internals); + return -1; +} + +enum dev_action{ + DEV_CREATE, + DEV_ATTACH +}; + +static int +eth_dev_ring_create(const char *name, const unsigned numa_node, + enum dev_action action) +{ + /* 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 i; + char rng_name[RTE_RING_NAMESIZE]; + unsigned num_rings = RTE_MIN(RTE_PMD_RING_MAX_RX_RINGS, + RTE_PMD_RING_MAX_TX_RINGS); + + for (i = 0; i < num_rings; i++) { + snprintf(rng_name, sizeof(rng_name), "ETH_RXTX%u_%s", i, name); + 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 (rte_eth_from_rings(name, rxtx, num_rings, rxtx, num_rings, numa_node)) + return -1; + + return 0; +} + + +static int +eth_dev_ring_pair_create(const char *name, const unsigned numa_node, + enum dev_action action) +{ + /* 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 *rx[RTE_PMD_RING_MAX_RX_RINGS]; + struct rte_ring *tx[RTE_PMD_RING_MAX_TX_RINGS]; + unsigned i; + char rx_rng_name[RTE_RING_NAMESIZE]; + char tx_rng_name[RTE_RING_NAMESIZE]; + unsigned num_rings = RTE_MIN(RTE_PMD_RING_MAX_RX_RINGS, + RTE_PMD_RING_MAX_TX_RINGS); + + for (i = 0; i < num_rings; i++) { + snprintf(rx_rng_name, sizeof(rx_rng_name), "ETH_RX%u_%s", i, name); + rx[i] = (action == DEV_CREATE) ? + rte_ring_create(rx_rng_name, 1024, numa_node, + RING_F_SP_ENQ|RING_F_SC_DEQ) : + rte_ring_lookup(rx_rng_name); + if (rx[i] == NULL) + return -1; + snprintf(tx_rng_name, sizeof(tx_rng_name), "ETH_TX%u_%s", i, name); + tx[i] = (action == DEV_CREATE) ? + rte_ring_create(tx_rng_name, 1024, numa_node, + RING_F_SP_ENQ|RING_F_SC_DEQ): + rte_ring_lookup(tx_rng_name); + if (tx[i] == NULL) + return -1; + } + + if (rte_eth_from_rings(rx_rng_name, rx, num_rings, tx, num_rings, + numa_node) || rte_eth_from_rings(tx_rng_name, tx, num_rings, rx, + num_rings, numa_node)) + return -1; + + return 0; +} + +int +rte_eth_ring_pair_create(const char *name, const unsigned numa_node) +{ + RTE_LOG(WARNING, PMD, "rte_eth_ring_pair_create is deprecated\n"); + return eth_dev_ring_pair_create(name, numa_node, DEV_CREATE); +} + +int +rte_eth_ring_pair_attach(const char *name, const unsigned numa_node) +{ + RTE_LOG(WARNING, PMD, "rte_eth_ring_pair_attach is deprecated\n"); + return eth_dev_ring_pair_create(name, numa_node, DEV_ATTACH); +} + +struct node_action_pair { + char name[PATH_MAX]; + unsigned node; + enum dev_action action; +}; + +struct node_action_list { + unsigned total; + unsigned 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) { + RTE_LOG(WARNING, PMD, "command line paramter is empty for ring pmd!\n"); + goto out; + } + + node = strchr(name, ':'); + if (!node) { + RTE_LOG(WARNING, PMD, "could not parse node value from %s", name); + goto out; + } + + *node = '\0'; + node++; + + action = strchr(node, ':'); + if (!action) { + RTE_LOG(WARNING, PMD, "could not 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')) { + RTE_LOG(WARNING, PMD, "node value %s is unparseable as a number\n", node); + goto out; + } + + snprintf(info->list[info->count].name, sizeof(info->list[info->count].name), "%s", name); + + info->count++; + + ret = 0; +out: + free(name); + return ret; +} + +int +rte_pmd_ring_devinit(const char *name, const char *params) +{ + struct rte_kvargs *kvlist; + int ret = 0; + struct node_action_list *info = NULL; + + RTE_LOG(INFO, PMD, "Initializing pmd_ring for %s\n", name); + + if (params == NULL || params[0] == '\0') + eth_dev_ring_create(name, rte_socket_id(), DEV_CREATE); + else { + kvlist = rte_kvargs_parse(params, valid_arguments); + + if (!kvlist) { + RTE_LOG(INFO, PMD, "Ignoring unsupported parameters when creating" + " rings-backed ethernet device\n"); + eth_dev_ring_create(name, rte_socket_id(), DEV_CREATE); + return 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; + + 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++) { + eth_dev_ring_create(name, info->list[info->count].node, + info->list[info->count].action); + } + } + } + +out_free: + rte_free(info); +out: + return ret; +} + +static struct rte_driver pmd_ring_drv = { + .name = "eth_ring", + .type = PMD_VDEV, + .init = rte_pmd_ring_devinit, +}; + +PMD_REGISTER_DRIVER(pmd_ring_drv); diff --git a/src/dpdk_lib18/librte_pmd_ring/rte_eth_ring.h b/src/dpdk_lib18/librte_pmd_ring/rte_eth_ring.h new file mode 100755 index 00000000..e6ae19ed --- /dev/null +++ b/src/dpdk_lib18/librte_pmd_ring/rte_eth_ring.h @@ -0,0 +1,63 @@ +/*- + * 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. + */ + +#ifndef _RTE_ETH_RING_H_ +#define _RTE_ETH_RING_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include <rte_ring.h> + +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); + +int rte_eth_ring_pair_create(const char *name, const unsigned numa_node); +int rte_eth_ring_pair_attach(const char *name, const unsigned numa_node); + +/** + * For use by test apps only. Called as part of EAL init to set up any dummy NICs + * configured on command line. + */ +int rte_pmd_ring_devinit(const char *name, const char *params); + +#ifdef __cplusplus +} +#endif + +#endif |