X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=examples%2Fskeleton%2Fbasicfwd.c;h=72ba85fa1fe5c5bb5fe6483a1b479bd4866a5a10;hb=ddcd7640ca48a13ac211f356495ec894651b87b4;hp=ae606bf45a6415a203d8c6ef227ef9a2813b09c0;hpb=ea0c20ea95fd5d71a10757e6598ac66233ea1495;p=dpdk.git diff --git a/examples/skeleton/basicfwd.c b/examples/skeleton/basicfwd.c index ae606bf45a..72ba85fa1f 100644 --- a/examples/skeleton/basicfwd.c +++ b/examples/skeleton/basicfwd.c @@ -1,34 +1,5 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2015 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. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2015 Intel Corporation */ #include @@ -39,16 +10,17 @@ #include #include -#define RX_RING_SIZE 128 -#define TX_RING_SIZE 512 +#define RX_RING_SIZE 1024 +#define TX_RING_SIZE 1024 #define NUM_MBUFS 8191 -#define MBUF_DATA_SIZE (1600 + RTE_PKTMBUF_HEADROOM) #define MBUF_CACHE_SIZE 250 #define BURST_SIZE 32 static const struct rte_eth_conf port_conf_default = { - .rxmode = { .max_rx_pkt_len = ETHER_MAX_LEN } + .rxmode = { + .max_rx_pkt_len = RTE_ETHER_MAX_LEN, + }, }; /* basicfwd.c: Basic DPDK skeleton forwarding example. */ @@ -58,33 +30,54 @@ static const struct rte_eth_conf port_conf_default = { * coming from the mbuf_pool passed as a parameter. */ static inline int -port_init(uint8_t port, struct rte_mempool *mbuf_pool) +port_init(uint16_t port, struct rte_mempool *mbuf_pool) { struct rte_eth_conf port_conf = port_conf_default; const uint16_t rx_rings = 1, tx_rings = 1; + uint16_t nb_rxd = RX_RING_SIZE; + uint16_t nb_txd = TX_RING_SIZE; int retval; uint16_t q; + struct rte_eth_dev_info dev_info; + struct rte_eth_txconf txconf; - if (port >= rte_eth_dev_count()) + if (!rte_eth_dev_is_valid_port(port)) return -1; + retval = rte_eth_dev_info_get(port, &dev_info); + if (retval != 0) { + printf("Error during getting device (port %u) info: %s\n", + port, strerror(-retval)); + return retval; + } + + if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) + port_conf.txmode.offloads |= + DEV_TX_OFFLOAD_MBUF_FAST_FREE; + /* Configure the Ethernet device. */ retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf); if (retval != 0) return retval; + retval = rte_eth_dev_adjust_nb_rx_tx_desc(port, &nb_rxd, &nb_txd); + if (retval != 0) + return retval; + /* Allocate and set up 1 RX queue per Ethernet port. */ for (q = 0; q < rx_rings; q++) { - retval = rte_eth_rx_queue_setup(port, q, RX_RING_SIZE, + retval = rte_eth_rx_queue_setup(port, q, nb_rxd, rte_eth_dev_socket_id(port), NULL, mbuf_pool); if (retval < 0) return retval; } + txconf = dev_info.default_txconf; + txconf.offloads = port_conf.txmode.offloads; /* Allocate and set up 1 TX queue per Ethernet port. */ for (q = 0; q < tx_rings; q++) { - retval = rte_eth_tx_queue_setup(port, q, TX_RING_SIZE, - rte_eth_dev_socket_id(port), NULL); + retval = rte_eth_tx_queue_setup(port, q, nb_txd, + rte_eth_dev_socket_id(port), &txconf); if (retval < 0) return retval; } @@ -95,17 +88,22 @@ port_init(uint8_t port, struct rte_mempool *mbuf_pool) return retval; /* Display the port MAC address. */ - struct ether_addr addr; - rte_eth_macaddr_get(port, &addr); + struct rte_ether_addr addr; + retval = rte_eth_macaddr_get(port, &addr); + if (retval != 0) + return retval; + printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n", - (unsigned)port, + port, addr.addr_bytes[0], addr.addr_bytes[1], addr.addr_bytes[2], addr.addr_bytes[3], addr.addr_bytes[4], addr.addr_bytes[5]); /* Enable RX in promiscuous mode for the Ethernet device. */ - rte_eth_promiscuous_enable(port); + retval = rte_eth_promiscuous_enable(port); + if (retval != 0) + return retval; return 0; } @@ -114,17 +112,16 @@ port_init(uint8_t port, struct rte_mempool *mbuf_pool) * The lcore main. This is the main thread that does the work, reading from * an input port and writing to an output port. */ -static __attribute__((noreturn)) void +static __rte_noreturn void lcore_main(void) { - const uint8_t nb_ports = rte_eth_dev_count(); - uint8_t port; + uint16_t port; /* * Check that the port is on the same NUMA node as the polling thread * for best performance. */ - for (port = 0; port < nb_ports; port++) + RTE_ETH_FOREACH_DEV(port) if (rte_eth_dev_socket_id(port) > 0 && rte_eth_dev_socket_id(port) != (int)rte_socket_id()) @@ -141,7 +138,7 @@ lcore_main(void) * Receive packets on a port and forward them on the paired * port. The mapping is 0 -> 1, 1 -> 0, 2 -> 3, 3 -> 2, etc. */ - for (port = 0; port < nb_ports; port++) { + RTE_ETH_FOREACH_DEV(port) { /* Get burst of RX packets, from first port of pair. */ struct rte_mbuf *bufs[BURST_SIZE]; @@ -174,7 +171,7 @@ main(int argc, char *argv[]) { struct rte_mempool *mbuf_pool; unsigned nb_ports; - uint8_t portid; + uint16_t portid; /* Initialize the Environment Abstraction Layer (EAL). */ int ret = rte_eal_init(argc, argv); @@ -185,21 +182,21 @@ main(int argc, char *argv[]) argv += ret; /* Check that there is an even number of ports to send/receive on. */ - nb_ports = rte_eth_dev_count(); + nb_ports = rte_eth_dev_count_avail(); if (nb_ports < 2 || (nb_ports & 1)) rte_exit(EXIT_FAILURE, "Error: number of ports must be even\n"); /* Creates a new mempool in memory to hold the mbufs. */ mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", NUM_MBUFS * nb_ports, - MBUF_CACHE_SIZE, 0, MBUF_DATA_SIZE, rte_socket_id()); + MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); if (mbuf_pool == NULL) rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n"); /* Initialize all ports. */ - for (portid = 0; portid < nb_ports; portid++) + RTE_ETH_FOREACH_DEV(portid) if (port_init(portid, mbuf_pool) != 0) - rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu8 "\n", + rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu16 "\n", portid); if (rte_lcore_count() > 1)