X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=examples%2Flink_status_interrupt%2Fmain.c;h=e6fb218573989823a9a7b6672a1b6bde5c29d13b;hb=ff708facfcbf42f3dcb3c62d82ecd93e7b8c2506;hp=3b853992a6e5acfe32bfdf2126d0762bff315988;hpb=1c17baf48620a075caa0a2e4c19a4097cf5d9302;p=dpdk.git diff --git a/examples/link_status_interrupt/main.c b/examples/link_status_interrupt/main.c index 3b853992a6..e6fb218573 100644 --- a/examples/link_status_interrupt/main.c +++ b/examples/link_status_interrupt/main.c @@ -1,35 +1,34 @@ /*- * BSD LICENSE - * - * Copyright(c) 2010-2013 Intel Corporation. All rights reserved. + * + * 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 + * + * 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 + * + * * 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 + * * 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 + * * 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 + * + * 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 @@ -52,7 +51,6 @@ #include #include #include -#include #include #include #include @@ -72,34 +70,13 @@ #include #include -#include "main.h" - #define RTE_LOGTYPE_LSI RTE_LOGTYPE_USER1 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM) #define NB_MBUF 8192 -/* - * RX and TX Prefetch, Host, and Write-back threshold values should be - * carefully set for optimal performance. Consult the network - * controller's datasheet and supporting DPDK documentation for guidance - * on how these parameters should be set. - */ -#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */ -#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */ -#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */ - -/* - * These default values are optimized for use with the Intel(R) 82599 10 GbE - * Controller and the DPDK ixgbe PMD. Consider using other values for other - * network controllers and/or network drivers. - */ -#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */ -#define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */ -#define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */ - #define MAX_PKT_BURST 32 -#define BURST_TX_DRAIN 200000ULL /* around 100us at 2 Ghz */ +#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ /* * Configurable number of RX/TX ring descriptors @@ -154,24 +131,6 @@ static const struct rte_eth_conf port_conf = { }, }; -static const struct rte_eth_rxconf rx_conf = { - .rx_thresh = { - .pthresh = RX_PTHRESH, - .hthresh = RX_HTHRESH, - .wthresh = RX_WTHRESH, - }, -}; - -static const struct rte_eth_txconf tx_conf = { - .tx_thresh = { - .pthresh = TX_PTHRESH, - .hthresh = TX_HTHRESH, - .wthresh = TX_WTHRESH, - }, - .tx_free_thresh = 0, /* Use PMD default values */ - .tx_rs_thresh = 0, /* Use PMD default values */ -}; - struct rte_mempool * lsi_pktmbuf_pool = NULL; /* Per-port statistics struct */ @@ -317,11 +276,12 @@ lsi_main_loop(void) struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; struct rte_mbuf *m; unsigned lcore_id; - uint64_t prev_tsc = 0; - uint64_t diff_tsc, cur_tsc, timer_tsc; + uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc; unsigned i, j, portid, nb_rx; struct lcore_queue_conf *qconf; + const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US; + prev_tsc = 0; timer_tsc = 0; lcore_id = rte_lcore_id(); @@ -329,7 +289,7 @@ lsi_main_loop(void) if (qconf->n_rx_port == 0) { RTE_LOG(INFO, LSI, "lcore %u has nothing to do\n", lcore_id); - while(1); + return; } RTE_LOG(INFO, LSI, "entering main loop on lcore %u\n", lcore_id); @@ -349,7 +309,7 @@ lsi_main_loop(void) * TX burst queue drain */ diff_tsc = cur_tsc - prev_tsc; - if (unlikely(diff_tsc > BURST_TX_DRAIN)) { + if (unlikely(diff_tsc > drain_tsc)) { /* this could be optimized (use queueid instead of * portid), but it is not called so often */ @@ -630,7 +590,7 @@ check_all_ports_link_status(uint8_t port_num, uint32_t port_mask) } int -MAIN(int argc, char **argv) +main(int argc, char **argv) { struct lcore_queue_conf *qconf; struct rte_eth_dev_info dev_info; @@ -663,13 +623,6 @@ MAIN(int argc, char **argv) if (lsi_pktmbuf_pool == NULL) rte_panic("Cannot init mbuf pool\n"); - /* init driver(s) */ - if (rte_pmd_init_all() < 0) - rte_panic("Cannot init pmd\n"); - - if (rte_eal_pci_probe() < 0) - rte_panic("Cannot probe PCI\n"); - nb_ports = rte_eth_dev_count(); if (nb_ports == 0) rte_panic("No Ethernet port - bye\n"); @@ -758,7 +711,8 @@ MAIN(int argc, char **argv) /* init one RX queue */ fflush(stdout); ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, - rte_eth_dev_socket_id(portid), &rx_conf, + rte_eth_dev_socket_id(portid), + NULL, lsi_pktmbuf_pool); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, port=%u\n", @@ -767,7 +721,8 @@ MAIN(int argc, char **argv) /* init one TX queue logical core on each port */ fflush(stdout); ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, - rte_eth_dev_socket_id(portid), &tx_conf); + rte_eth_dev_socket_id(portid), + NULL); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n", ret, (unsigned) portid);