From: Tomasz Kulasek Date: Thu, 10 Mar 2016 17:19:35 +0000 (+0100) Subject: examples: use buffered Tx X-Git-Tag: spdx-start~7470 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=e2366e74e029;p=dpdk.git examples: use buffered Tx The internal buffering of packets for TX in sample apps is no longer needed, so this patchset also replaces this code with calls to the new rte_eth_tx_buffer* APIs in: * l2fwd-jobstats * l2fwd-keepalive * l2fwd * l3fwd-acl * l3fwd-power * link_status_interrupt * client_server_mp * l2fwd_fork * packet_ordering * qos_meter Signed-off-by: Tomasz Kulasek Acked-by: Konstantin Ananyev --- diff --git a/examples/l2fwd-jobstats/main.c b/examples/l2fwd-jobstats/main.c index 6da60e09dc..d1e9bf7cea 100644 --- a/examples/l2fwd-jobstats/main.c +++ b/examples/l2fwd-jobstats/main.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2015 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -41,6 +41,7 @@ #include #include #include +#include #include #include #include @@ -97,18 +98,12 @@ static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS]; static unsigned int l2fwd_rx_queue_per_lcore = 1; -struct mbuf_table { - uint64_t next_flush_time; - unsigned len; - struct rte_mbuf *mbufs[MAX_PKT_BURST]; -}; - #define MAX_RX_QUEUE_PER_LCORE 16 #define MAX_TX_QUEUE_PER_PORT 16 struct lcore_queue_conf { unsigned n_rx_port; unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; - struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS]; + uint64_t next_flush_time[RTE_MAX_ETHPORTS]; struct rte_timer rx_timers[MAX_RX_QUEUE_PER_LCORE]; struct rte_jobstats port_fwd_jobs[MAX_RX_QUEUE_PER_LCORE]; @@ -123,6 +118,8 @@ struct lcore_queue_conf { } __rte_cache_aligned; struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; +struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; + static const struct rte_eth_conf port_conf = { .rxmode = { .split_hdr_size = 0, @@ -373,59 +370,14 @@ show_stats_cb(__rte_unused void *param) rte_eal_alarm_set(timer_period * US_PER_S, show_stats_cb, NULL); } -/* Send the burst of packets on an output interface */ -static void -l2fwd_send_burst(struct lcore_queue_conf *qconf, uint8_t port) -{ - struct mbuf_table *m_table; - uint16_t ret; - uint16_t queueid = 0; - uint16_t n; - - m_table = &qconf->tx_mbufs[port]; - n = m_table->len; - - m_table->next_flush_time = rte_get_timer_cycles() + drain_tsc; - m_table->len = 0; - - ret = rte_eth_tx_burst(port, queueid, m_table->mbufs, n); - - port_statistics[port].tx += ret; - if (unlikely(ret < n)) { - port_statistics[port].dropped += (n - ret); - do { - rte_pktmbuf_free(m_table->mbufs[ret]); - } while (++ret < n); - } -} - -/* Enqueue packets for TX and prepare them to be sent */ -static int -l2fwd_send_packet(struct rte_mbuf *m, uint8_t port) -{ - const unsigned lcore_id = rte_lcore_id(); - struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id]; - struct mbuf_table *m_table = &qconf->tx_mbufs[port]; - uint16_t len = qconf->tx_mbufs[port].len; - - m_table->mbufs[len] = m; - - len++; - m_table->len = len; - - /* Enough pkts to be sent. */ - if (unlikely(len == MAX_PKT_BURST)) - l2fwd_send_burst(qconf, port); - - return 0; -} - static void l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) { struct ether_hdr *eth; void *tmp; + int sent; unsigned dst_port; + struct rte_eth_dev_tx_buffer *buffer; dst_port = l2fwd_dst_ports[portid]; eth = rte_pktmbuf_mtod(m, struct ether_hdr *); @@ -437,7 +389,10 @@ l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) /* src addr */ ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->s_addr); - l2fwd_send_packet(m, (uint8_t) dst_port); + buffer = tx_buffer[dst_port]; + sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); + if (sent) + port_statistics[dst_port].tx += sent; } static void @@ -511,8 +466,10 @@ l2fwd_flush_job(__rte_unused struct rte_timer *timer, __rte_unused void *arg) uint64_t now; unsigned lcore_id; struct lcore_queue_conf *qconf; - struct mbuf_table *m_table; uint8_t portid; + unsigned i; + uint32_t sent; + struct rte_eth_dev_tx_buffer *buffer; lcore_id = rte_lcore_id(); qconf = &lcore_queue_conf[lcore_id]; @@ -522,14 +479,20 @@ l2fwd_flush_job(__rte_unused struct rte_timer *timer, __rte_unused void *arg) now = rte_get_timer_cycles(); lcore_id = rte_lcore_id(); qconf = &lcore_queue_conf[lcore_id]; - for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { - m_table = &qconf->tx_mbufs[portid]; - if (m_table->len == 0 || m_table->next_flush_time <= now) + + for (i = 0; i < qconf->n_rx_port; i++) { + portid = l2fwd_dst_ports[qconf->rx_port_list[i]]; + + if (qconf->next_flush_time[portid] <= now) continue; - l2fwd_send_burst(qconf, portid); - } + buffer = tx_buffer[portid]; + sent = rte_eth_tx_buffer_flush(portid, 0, buffer); + if (sent) + port_statistics[portid].tx += sent; + qconf->next_flush_time[portid] = rte_get_timer_cycles() + drain_tsc; + } /* Pass target to indicate that this job is happy of time interwal * in which it was called. */ @@ -945,6 +908,23 @@ main(int argc, char **argv) rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", ret, (unsigned) portid); + /* Initialize TX buffers */ + tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, + rte_eth_dev_socket_id(portid)); + if (tx_buffer[portid] == NULL) + rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", + (unsigned) portid); + + rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); + + ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], + rte_eth_tx_buffer_count_callback, + &port_statistics[portid].dropped); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot set error callback for " + "tx buffer on port %u\n", (unsigned) portid); + /* Start device */ ret = rte_eth_dev_start(portid); if (ret < 0) diff --git a/examples/l2fwd-keepalive/main.c b/examples/l2fwd-keepalive/main.c index f4d52f2daf..94b867799a 100644 --- a/examples/l2fwd-keepalive/main.c +++ b/examples/l2fwd-keepalive/main.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2015 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -47,6 +47,7 @@ #include #include +#include #include #include #include @@ -97,21 +98,16 @@ static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS]; static unsigned int l2fwd_rx_queue_per_lcore = 1; -struct mbuf_table { - unsigned len; - struct rte_mbuf *m_table[MAX_PKT_BURST]; -}; - #define MAX_RX_QUEUE_PER_LCORE 16 #define MAX_TX_QUEUE_PER_PORT 16 struct lcore_queue_conf { unsigned n_rx_port; unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; - struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS]; - } __rte_cache_aligned; struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; +struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; + static const struct rte_eth_conf port_conf = { .rxmode = { .split_hdr_size = 0, @@ -192,58 +188,14 @@ print_stats(__attribute__((unused)) struct rte_timer *ptr_timer, printf("\n====================================================\n"); } -/* Send the burst of packets on an output interface */ -static int -l2fwd_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port) -{ - struct rte_mbuf **m_table; - unsigned ret; - unsigned queueid = 0; - - m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table; - - ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n); - port_statistics[port].tx += ret; - if (unlikely(ret < n)) { - port_statistics[port].dropped += (n - ret); - do { - rte_pktmbuf_free(m_table[ret]); - } while (++ret < n); - } - - return 0; -} - -/* Enqueue packets for TX and prepare them to be sent */ -static int -l2fwd_send_packet(struct rte_mbuf *m, uint8_t port) -{ - unsigned lcore_id, len; - struct lcore_queue_conf *qconf; - - lcore_id = rte_lcore_id(); - - qconf = &lcore_queue_conf[lcore_id]; - len = qconf->tx_mbufs[port].len; - qconf->tx_mbufs[port].m_table[len] = m; - len++; - - /* enough pkts to be sent */ - if (unlikely(len == MAX_PKT_BURST)) { - l2fwd_send_burst(qconf, MAX_PKT_BURST, port); - len = 0; - } - - qconf->tx_mbufs[port].len = len; - return 0; -} - static void l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) { struct ether_hdr *eth; void *tmp; + int sent; unsigned dst_port; + struct rte_eth_dev_tx_buffer *buffer; dst_port = l2fwd_dst_ports[portid]; eth = rte_pktmbuf_mtod(m, struct ether_hdr *); @@ -255,7 +207,10 @@ l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) /* src addr */ ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->s_addr); - l2fwd_send_packet(m, (uint8_t) dst_port); + buffer = tx_buffer[dst_port]; + sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); + if (sent) + port_statistics[dst_port].tx += sent; } /* main processing loop */ @@ -264,12 +219,14 @@ l2fwd_main_loop(void) { struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; struct rte_mbuf *m; + int sent; unsigned lcore_id; uint64_t prev_tsc, diff_tsc, cur_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; + struct rte_eth_dev_tx_buffer *buffer; prev_tsc = 0; @@ -312,13 +269,15 @@ l2fwd_main_loop(void) diff_tsc = cur_tsc - prev_tsc; if (unlikely(diff_tsc > drain_tsc)) { - for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { - if (qconf->tx_mbufs[portid].len == 0) - continue; - l2fwd_send_burst(&lcore_queue_conf[lcore_id], - qconf->tx_mbufs[portid].len, - (uint8_t) portid); - qconf->tx_mbufs[portid].len = 0; + for (i = 0; i < qconf->n_rx_port; i++) { + + portid = l2fwd_dst_ports[qconf->rx_port_list[i]]; + buffer = tx_buffer[portid]; + + sent = rte_eth_tx_buffer_flush(portid, 0, buffer); + if (sent) + port_statistics[portid].tx += sent; + } prev_tsc = cur_tsc; @@ -713,6 +672,23 @@ main(int argc, char **argv) "rte_eth_tx_queue_setup:err=%d, port=%u\n", ret, (unsigned) portid); + /* Initialize TX buffers */ + tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, + rte_eth_dev_socket_id(portid)); + if (tx_buffer[portid] == NULL) + rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", + (unsigned) portid); + + rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); + + ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], + rte_eth_tx_buffer_count_callback, + &port_statistics[portid].dropped); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot set error callback for " + "tx buffer on port %u\n", (unsigned) portid); + /* Start device */ ret = rte_eth_dev_start(portid); if (ret < 0) diff --git a/examples/l2fwd/main.c b/examples/l2fwd/main.c index f35d8a1a07..e175681944 100644 --- a/examples/l2fwd/main.c +++ b/examples/l2fwd/main.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -49,6 +49,7 @@ #include #include +#include #include #include #include @@ -99,21 +100,16 @@ static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS]; static unsigned int l2fwd_rx_queue_per_lcore = 1; -struct mbuf_table { - unsigned len; - struct rte_mbuf *m_table[MAX_PKT_BURST]; -}; - #define MAX_RX_QUEUE_PER_LCORE 16 #define MAX_TX_QUEUE_PER_PORT 16 struct lcore_queue_conf { unsigned n_rx_port; unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; - struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS]; - } __rte_cache_aligned; struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; +static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; + static const struct rte_eth_conf port_conf = { .rxmode = { .split_hdr_size = 0, @@ -189,58 +185,14 @@ print_stats(void) printf("\n====================================================\n"); } -/* Send the burst of packets on an output interface */ -static int -l2fwd_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port) -{ - struct rte_mbuf **m_table; - unsigned ret; - unsigned queueid =0; - - m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table; - - ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n); - port_statistics[port].tx += ret; - if (unlikely(ret < n)) { - port_statistics[port].dropped += (n - ret); - do { - rte_pktmbuf_free(m_table[ret]); - } while (++ret < n); - } - - return 0; -} - -/* Enqueue packets for TX and prepare them to be sent */ -static int -l2fwd_send_packet(struct rte_mbuf *m, uint8_t port) -{ - unsigned lcore_id, len; - struct lcore_queue_conf *qconf; - - lcore_id = rte_lcore_id(); - - qconf = &lcore_queue_conf[lcore_id]; - len = qconf->tx_mbufs[port].len; - qconf->tx_mbufs[port].m_table[len] = m; - len++; - - /* enough pkts to be sent */ - if (unlikely(len == MAX_PKT_BURST)) { - l2fwd_send_burst(qconf, MAX_PKT_BURST, port); - len = 0; - } - - qconf->tx_mbufs[port].len = len; - return 0; -} - static void l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) { struct ether_hdr *eth; void *tmp; unsigned dst_port; + int sent; + struct rte_eth_dev_tx_buffer *buffer; dst_port = l2fwd_dst_ports[portid]; eth = rte_pktmbuf_mtod(m, struct ether_hdr *); @@ -252,7 +204,10 @@ l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) /* src addr */ ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->s_addr); - l2fwd_send_packet(m, (uint8_t) dst_port); + buffer = tx_buffer[dst_port]; + sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); + if (sent) + port_statistics[dst_port].tx += sent; } /* main processing loop */ @@ -261,11 +216,14 @@ l2fwd_main_loop(void) { struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; struct rte_mbuf *m; + int sent; unsigned lcore_id; 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; + const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * + BURST_TX_DRAIN_US; + struct rte_eth_dev_tx_buffer *buffer; prev_tsc = 0; timer_tsc = 0; @@ -285,6 +243,7 @@ l2fwd_main_loop(void) portid = qconf->rx_port_list[i]; RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id, portid); + } while (!force_quit) { @@ -297,13 +256,15 @@ l2fwd_main_loop(void) diff_tsc = cur_tsc - prev_tsc; if (unlikely(diff_tsc > drain_tsc)) { - for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { - if (qconf->tx_mbufs[portid].len == 0) - continue; - l2fwd_send_burst(&lcore_queue_conf[lcore_id], - qconf->tx_mbufs[portid].len, - (uint8_t) portid); - qconf->tx_mbufs[portid].len = 0; + for (i = 0; i < qconf->n_rx_port; i++) { + + portid = l2fwd_dst_ports[qconf->rx_port_list[i]]; + buffer = tx_buffer[portid]; + + sent = rte_eth_tx_buffer_flush(portid, 0, buffer); + if (sent) + port_statistics[portid].tx += sent; + } /* if timer is enabled */ @@ -688,6 +649,23 @@ main(int argc, char **argv) rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", ret, (unsigned) portid); + /* Initialize TX buffers */ + tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, + rte_eth_dev_socket_id(portid)); + if (tx_buffer[portid] == NULL) + rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", + (unsigned) portid); + + rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); + + ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], + rte_eth_tx_buffer_count_callback, + &port_statistics[portid].dropped); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot set error callback for " + "tx buffer on port %u\n", (unsigned) portid); + /* Start device */ ret = rte_eth_dev_start(portid); if (ret < 0) diff --git a/examples/l3fwd-acl/main.c b/examples/l3fwd-acl/main.c index f676d146c7..3a895b708c 100644 --- a/examples/l3fwd-acl/main.c +++ b/examples/l3fwd-acl/main.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -119,11 +119,6 @@ static uint32_t enabled_port_mask; static int promiscuous_on; /**< Ports set in promiscuous mode off by default. */ static int numa_on = 1; /**< NUMA is enabled by default. */ -struct mbuf_table { - uint16_t len; - struct rte_mbuf *m_table[MAX_PKT_BURST]; -}; - struct lcore_rx_queue { uint8_t port_id; uint8_t queue_id; @@ -187,7 +182,7 @@ static struct rte_mempool *pktmbuf_pool[NB_SOCKETS]; static inline int is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len); #endif -static inline int +static inline void send_single_packet(struct rte_mbuf *m, uint8_t port); #define MAX_ACL_RULE_NUM 100000 @@ -1291,56 +1286,26 @@ app_acl_init(void) struct lcore_conf { uint16_t n_rx_queue; struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE]; + uint16_t n_tx_port; + uint16_t tx_port_id[RTE_MAX_ETHPORTS]; uint16_t tx_queue_id[RTE_MAX_ETHPORTS]; - struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS]; + struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; } __rte_cache_aligned; static struct lcore_conf lcore_conf[RTE_MAX_LCORE]; -/* Send burst of packets on an output interface */ -static inline int -send_burst(struct lcore_conf *qconf, uint16_t n, uint8_t port) -{ - struct rte_mbuf **m_table; - int ret; - uint16_t queueid; - - queueid = qconf->tx_queue_id[port]; - m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table; - - ret = rte_eth_tx_burst(port, queueid, m_table, n); - if (unlikely(ret < n)) { - do { - rte_pktmbuf_free(m_table[ret]); - } while (++ret < n); - } - - return 0; -} - /* Enqueue a single packet, and send burst if queue is filled */ -static inline int +static inline void send_single_packet(struct rte_mbuf *m, uint8_t port) { uint32_t lcore_id; - uint16_t len; struct lcore_conf *qconf; lcore_id = rte_lcore_id(); qconf = &lcore_conf[lcore_id]; - len = qconf->tx_mbufs[port].len; - qconf->tx_mbufs[port].m_table[len] = m; - len++; - - /* enough pkts to be sent */ - if (unlikely(len == MAX_PKT_BURST)) { - send_burst(qconf, MAX_PKT_BURST, port); - len = 0; - } - - qconf->tx_mbufs[port].len = len; - return 0; + rte_eth_tx_buffer(port, qconf->tx_queue_id[port], + qconf->tx_buffer[port], m); } #ifdef DO_RFC_1812_CHECKS @@ -1428,20 +1393,12 @@ main_loop(__attribute__((unused)) void *dummy) */ diff_tsc = cur_tsc - prev_tsc; if (unlikely(diff_tsc > drain_tsc)) { - - /* - * This could be optimized (use queueid instead of - * portid), but it is not called so often - */ - for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { - if (qconf->tx_mbufs[portid].len == 0) - continue; - send_burst(&lcore_conf[lcore_id], - qconf->tx_mbufs[portid].len, - portid); - qconf->tx_mbufs[portid].len = 0; + for (i = 0; i < qconf->n_tx_port; ++i) { + portid = qconf->tx_port_id[i]; + rte_eth_tx_buffer_flush(portid, + qconf->tx_queue_id[portid], + qconf->tx_buffer[portid]); } - prev_tsc = cur_tsc; } @@ -1936,6 +1893,7 @@ main(int argc, char **argv) unsigned lcore_id; uint32_t n_tx_queue, nb_lcores; uint8_t portid, nb_rx_queue, queue, socketid; + uint8_t nb_tx_port; /* init EAL */ ret = rte_eal_init(argc, argv); @@ -1968,6 +1926,7 @@ main(int argc, char **argv) rte_exit(EXIT_FAILURE, "app_acl_init failed\n"); nb_lcores = rte_lcore_count(); + nb_tx_port = 0; /* initialize all ports */ for (portid = 0; portid < nb_ports; portid++) { @@ -2003,6 +1962,22 @@ main(int argc, char **argv) if (ret < 0) rte_exit(EXIT_FAILURE, "init_mem failed\n"); + for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { + if (rte_lcore_is_enabled(lcore_id) == 0) + continue; + + /* Initialize TX buffers */ + qconf = &lcore_conf[lcore_id]; + qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, + rte_eth_dev_socket_id(portid)); + if (qconf->tx_buffer[portid] == NULL) + rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n", + (unsigned) portid); + + rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST); + } + /* init one TX queue per couple (lcore,port) */ queueid = 0; for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { @@ -2032,8 +2007,13 @@ main(int argc, char **argv) qconf = &lcore_conf[lcore_id]; qconf->tx_queue_id[portid] = queueid; queueid++; + + qconf->n_tx_port = nb_tx_port; + qconf->tx_port_id[qconf->n_tx_port] = portid; } printf("\n"); + + nb_tx_port++; } for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c index f8a2f1bf71..d4bb7a3638 100644 --- a/examples/l3fwd-power/main.c +++ b/examples/l3fwd-power/main.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -47,6 +47,7 @@ #include #include #include +#include #include #include #include @@ -173,11 +174,6 @@ enum freq_scale_hint_t FREQ_HIGHEST = 2 }; -struct mbuf_table { - uint16_t len; - struct rte_mbuf *m_table[MAX_PKT_BURST]; -}; - struct lcore_rx_queue { uint8_t port_id; uint8_t queue_id; @@ -347,8 +343,10 @@ static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS]; struct lcore_conf { uint16_t n_rx_queue; struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE]; + uint16_t n_tx_port; + uint16_t tx_port_id[RTE_MAX_ETHPORTS]; uint16_t tx_queue_id[RTE_MAX_ETHPORTS]; - struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS]; + struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; lookup_struct_t * ipv4_lookup_struct; lookup_struct_t * ipv6_lookup_struct; } __rte_cache_aligned; @@ -442,49 +440,19 @@ power_timer_cb(__attribute__((unused)) struct rte_timer *tim, stats[lcore_id].sleep_time = 0; } -/* Send burst of packets on an output interface */ -static inline int -send_burst(struct lcore_conf *qconf, uint16_t n, uint8_t port) -{ - struct rte_mbuf **m_table; - int ret; - uint16_t queueid; - - queueid = qconf->tx_queue_id[port]; - m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table; - - ret = rte_eth_tx_burst(port, queueid, m_table, n); - if (unlikely(ret < n)) { - do { - rte_pktmbuf_free(m_table[ret]); - } while (++ret < n); - } - - return 0; -} - /* Enqueue a single packet, and send burst if queue is filled */ static inline int send_single_packet(struct rte_mbuf *m, uint8_t port) { uint32_t lcore_id; - uint16_t len; struct lcore_conf *qconf; lcore_id = rte_lcore_id(); - qconf = &lcore_conf[lcore_id]; - len = qconf->tx_mbufs[port].len; - qconf->tx_mbufs[port].m_table[len] = m; - len++; - - /* enough pkts to be sent */ - if (unlikely(len == MAX_PKT_BURST)) { - send_burst(qconf, MAX_PKT_BURST, port); - len = 0; - } - qconf->tx_mbufs[port].len = len; + rte_eth_tx_buffer(port, qconf->tx_queue_id[port], + qconf->tx_buffer[port], m); + return 0; } @@ -905,20 +873,12 @@ main_loop(__attribute__((unused)) void *dummy) */ diff_tsc = cur_tsc - prev_tsc; if (unlikely(diff_tsc > drain_tsc)) { - - /* - * This could be optimized (use queueid instead of - * portid), but it is not called so often - */ - for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { - if (qconf->tx_mbufs[portid].len == 0) - continue; - send_burst(&lcore_conf[lcore_id], - qconf->tx_mbufs[portid].len, - portid); - qconf->tx_mbufs[portid].len = 0; + for (i = 0; i < qconf->n_tx_port; ++i) { + portid = qconf->tx_port_id[i]; + rte_eth_tx_buffer_flush(portid, + qconf->tx_queue_id[portid], + qconf->tx_buffer[portid]); } - prev_tsc = cur_tsc; } @@ -1585,6 +1545,7 @@ main(int argc, char **argv) uint32_t n_tx_queue, nb_lcores; uint32_t dev_rxq_num, dev_txq_num; uint8_t portid, nb_rx_queue, queue, socketid; + uint8_t nb_tx_port; /* catch SIGINT and restore cpufreq governor to ondemand */ signal(SIGINT, signal_exit_now); @@ -1620,6 +1581,7 @@ main(int argc, char **argv) rte_exit(EXIT_FAILURE, "check_port_config failed\n"); nb_lcores = rte_lcore_count(); + nb_tx_port = 0; /* initialize all ports */ for (portid = 0; portid < nb_ports; portid++) { @@ -1663,6 +1625,22 @@ main(int argc, char **argv) if (ret < 0) rte_exit(EXIT_FAILURE, "init_mem failed\n"); + for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { + if (rte_lcore_is_enabled(lcore_id) == 0) + continue; + + /* Initialize TX buffers */ + qconf = &lcore_conf[lcore_id]; + qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, + rte_eth_dev_socket_id(portid)); + if (qconf->tx_buffer[portid] == NULL) + rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n", + (unsigned) portid); + + rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST); + } + /* init one TX queue per couple (lcore,port) */ queueid = 0; for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { @@ -1695,8 +1673,13 @@ main(int argc, char **argv) qconf = &lcore_conf[lcore_id]; qconf->tx_queue_id[portid] = queueid; queueid++; + + qconf->n_tx_port = nb_tx_port; + qconf->tx_port_id[qconf->n_tx_port] = portid; } printf("\n"); + + nb_tx_port++; } for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { diff --git a/examples/link_status_interrupt/main.c b/examples/link_status_interrupt/main.c index c57a08a463..cbc29bc6c2 100644 --- a/examples/link_status_interrupt/main.c +++ b/examples/link_status_interrupt/main.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -48,6 +48,7 @@ #include #include +#include #include #include #include @@ -97,10 +98,6 @@ static unsigned int lsi_rx_queue_per_lcore = 1; static unsigned lsi_dst_ports[RTE_MAX_ETHPORTS] = {0}; #define MAX_PKT_BURST 32 -struct mbuf_table { - unsigned len; - struct rte_mbuf *m_table[MAX_PKT_BURST]; -}; #define MAX_RX_QUEUE_PER_LCORE 16 #define MAX_TX_QUEUE_PER_PORT 16 @@ -108,11 +105,11 @@ struct lcore_queue_conf { unsigned n_rx_port; unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; unsigned tx_queue_id; - struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS]; - } __rte_cache_aligned; struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; +struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; + static const struct rte_eth_conf port_conf = { .rxmode = { .split_hdr_size = 0, @@ -202,59 +199,14 @@ print_stats(void) printf("\n====================================================\n"); } -/* Send the packet on an output interface */ -static int -lsi_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port) -{ - struct rte_mbuf **m_table; - unsigned ret; - unsigned queueid; - - queueid = (uint16_t) qconf->tx_queue_id; - m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table; - - ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n); - port_statistics[port].tx += ret; - if (unlikely(ret < n)) { - port_statistics[port].dropped += (n - ret); - do { - rte_pktmbuf_free(m_table[ret]); - } while (++ret < n); - } - - return 0; -} - -/* Send the packet on an output interface */ -static int -lsi_send_packet(struct rte_mbuf *m, uint8_t port) -{ - unsigned lcore_id, len; - struct lcore_queue_conf *qconf; - - lcore_id = rte_lcore_id(); - - qconf = &lcore_queue_conf[lcore_id]; - len = qconf->tx_mbufs[port].len; - qconf->tx_mbufs[port].m_table[len] = m; - len++; - - /* enough pkts to be sent */ - if (unlikely(len == MAX_PKT_BURST)) { - lsi_send_burst(qconf, MAX_PKT_BURST, port); - len = 0; - } - - qconf->tx_mbufs[port].len = len; - return 0; -} - static void lsi_simple_forward(struct rte_mbuf *m, unsigned portid) { struct ether_hdr *eth; void *tmp; unsigned dst_port = lsi_dst_ports[portid]; + int sent; + struct rte_eth_dev_tx_buffer *buffer; eth = rte_pktmbuf_mtod(m, struct ether_hdr *); @@ -265,7 +217,10 @@ lsi_simple_forward(struct rte_mbuf *m, unsigned portid) /* src addr */ ether_addr_copy(&lsi_ports_eth_addr[dst_port], ð->s_addr); - lsi_send_packet(m, (uint8_t) dst_port); + buffer = tx_buffer[dst_port]; + sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); + if (sent) + port_statistics[dst_port].tx += sent; } /* main processing loop */ @@ -275,10 +230,13 @@ lsi_main_loop(void) struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; struct rte_mbuf *m; unsigned lcore_id; + unsigned sent; 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; + const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * + BURST_TX_DRAIN_US; + struct rte_eth_dev_tx_buffer *buffer; prev_tsc = 0; timer_tsc = 0; @@ -310,15 +268,15 @@ lsi_main_loop(void) diff_tsc = cur_tsc - prev_tsc; if (unlikely(diff_tsc > drain_tsc)) { - /* this could be optimized (use queueid instead of - * portid), but it is not called so often */ - for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { - if (qconf->tx_mbufs[portid].len == 0) - continue; - lsi_send_burst(&lcore_queue_conf[lcore_id], - qconf->tx_mbufs[portid].len, - (uint8_t) portid); - qconf->tx_mbufs[portid].len = 0; + for (i = 0; i < qconf->n_rx_port; i++) { + + portid = lsi_dst_ports[qconf->rx_port_list[i]]; + buffer = tx_buffer[portid]; + + sent = rte_eth_tx_buffer_flush(portid, 0, buffer); + if (sent) + port_statistics[portid].tx += sent; + } /* if timer is enabled */ @@ -722,6 +680,23 @@ main(int argc, char **argv) rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n", ret, (unsigned) portid); + /* Initialize TX buffers */ + tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, + rte_eth_dev_socket_id(portid)); + if (tx_buffer[portid] == NULL) + rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", + (unsigned) portid); + + rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); + + ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], + rte_eth_tx_buffer_count_callback, + &port_statistics[portid].dropped); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot set error callback for " + "tx buffer on port %u\n", (unsigned) portid); + /* Start device */ ret = rte_eth_dev_start(portid); if (ret < 0) @@ -729,6 +704,8 @@ main(int argc, char **argv) ret, (unsigned) portid); printf("done:\n"); + rte_eth_promiscuous_enable(portid); + printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", (unsigned) portid, lsi_ports_eth_addr[portid].addr_bytes[0], diff --git a/examples/multi_process/client_server_mp/mp_client/client.c b/examples/multi_process/client_server_mp/mp_client/client.c index bf049a4dea..d4f9ca37ae 100644 --- a/examples/multi_process/client_server_mp/mp_client/client.c +++ b/examples/multi_process/client_server_mp/mp_client/client.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -42,6 +42,7 @@ #include #include +#include #include #include #include @@ -72,17 +73,13 @@ * queue to write to. */ static uint8_t client_id = 0; -struct mbuf_queue { #define MBQ_CAPACITY 32 - struct rte_mbuf *bufs[MBQ_CAPACITY]; - uint16_t top; -}; /* maps input ports to output ports for packets */ static uint8_t output_ports[RTE_MAX_ETHPORTS]; /* buffers up a set of packet that are ready to send */ -static struct mbuf_queue output_bufs[RTE_MAX_ETHPORTS]; +struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; /* shared data from server. We update statistics here */ static volatile struct tx_stats *tx_stats; @@ -148,12 +145,52 @@ parse_app_args(int argc, char *argv[]) return 0; } +/* + * Tx buffer error callback + */ +static void +flush_tx_error_callback(struct rte_mbuf **unsent, uint16_t count, + void *userdata) { + int i; + uint8_t port_id = (uintptr_t)userdata; + + tx_stats->tx_drop[port_id] += count; + + /* free the mbufs which failed from transmit */ + for (i = 0; i < count; i++) + rte_pktmbuf_free(unsent[i]); + +} + +static void +configure_tx_buffer(uint8_t port_id, uint16_t size) +{ + int ret; + + /* Initialize TX buffers */ + tx_buffer[port_id] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(size), 0, + rte_eth_dev_socket_id(port_id)); + if (tx_buffer[port_id] == NULL) + rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", + (unsigned) port_id); + + rte_eth_tx_buffer_init(tx_buffer[port_id], size); + + ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[port_id], + flush_tx_error_callback, (void *)(intptr_t)port_id); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot set error callback for " + "tx buffer on port %u\n", (unsigned) port_id); +} + /* * set up output ports so that all traffic on port gets sent out * its paired port. Index using actual port numbers since that is * what comes in the mbuf structure. */ -static void configure_output_ports(const struct port_info *ports) +static void +configure_output_ports(const struct port_info *ports) { int i; if (ports->num_ports > RTE_MAX_ETHPORTS) @@ -164,41 +201,11 @@ static void configure_output_ports(const struct port_info *ports) uint8_t p2 = ports->id[i+1]; output_ports[p1] = p2; output_ports[p2] = p1; - } -} + configure_tx_buffer(p1, MBQ_CAPACITY); + configure_tx_buffer(p2, MBQ_CAPACITY); -static inline void -send_packets(uint8_t port) -{ - uint16_t i, sent; - struct mbuf_queue *mbq = &output_bufs[port]; - - if (unlikely(mbq->top == 0)) - return; - - sent = rte_eth_tx_burst(port, client_id, mbq->bufs, mbq->top); - if (unlikely(sent < mbq->top)){ - for (i = sent; i < mbq->top; i++) - rte_pktmbuf_free(mbq->bufs[i]); - tx_stats->tx_drop[port] += (mbq->top - sent); } - tx_stats->tx[port] += sent; - mbq->top = 0; -} - -/* - * Enqueue a packet to be sent on a particular port, but - * don't send it yet. Only when the buffer is full. - */ -static inline void -enqueue_packet(struct rte_mbuf *buf, uint8_t port) -{ - struct mbuf_queue *mbq = &output_bufs[port]; - mbq->bufs[mbq->top++] = buf; - - if (mbq->top == MBQ_CAPACITY) - send_packets(port); } /* @@ -209,10 +216,15 @@ enqueue_packet(struct rte_mbuf *buf, uint8_t port) static void handle_packet(struct rte_mbuf *buf) { + int sent; const uint8_t in_port = buf->port; const uint8_t out_port = output_ports[in_port]; + struct rte_eth_dev_tx_buffer *buffer = tx_buffer[out_port]; + + sent = rte_eth_tx_buffer(out_port, client_id, buffer, buf); + if (sent) + tx_stats->tx[out_port] += sent; - enqueue_packet(buf, out_port); } /* @@ -229,6 +241,7 @@ main(int argc, char *argv[]) int need_flush = 0; /* indicates whether we have unsent packets */ int retval; void *pkts[PKT_READ_SIZE]; + uint16_t sent; if ((retval = rte_eal_init(argc, argv)) < 0) return -1; @@ -274,8 +287,12 @@ main(int argc, char *argv[]) if (unlikely(rx_pkts == 0)){ if (need_flush) - for (port = 0; port < ports->num_ports; port++) - send_packets(ports->id[port]); + for (port = 0; port < ports->num_ports; port++) { + sent = rte_eth_tx_buffer_flush(ports->id[port], client_id, + tx_buffer[port]); + if (unlikely(sent)) + tx_stats->tx[port] += sent; + } need_flush = 0; continue; } diff --git a/examples/multi_process/l2fwd_fork/main.c b/examples/multi_process/l2fwd_fork/main.c index f2d7eab345..aebf531999 100644 --- a/examples/multi_process/l2fwd_fork/main.c +++ b/examples/multi_process/l2fwd_fork/main.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -127,11 +127,11 @@ struct mbuf_table { struct lcore_queue_conf { unsigned n_rx_port; unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; - struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS]; - } __rte_cache_aligned; struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; +struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; + struct lcore_resource_struct { int enabled; /* Only set in case this lcore involved into packet forwarding */ int flags; /* Set only slave need to restart or recreate */ @@ -583,58 +583,14 @@ slave_exit_cb(unsigned slaveid, __attribute__((unused))int stat) rte_spinlock_unlock(&res_lock); } -/* Send the packet on an output interface */ -static int -l2fwd_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port) -{ - struct rte_mbuf **m_table; - unsigned ret; - unsigned queueid =0; - - m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table; - - ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n); - port_statistics[port].tx += ret; - if (unlikely(ret < n)) { - port_statistics[port].dropped += (n - ret); - do { - rte_pktmbuf_free(m_table[ret]); - } while (++ret < n); - } - - return 0; -} - -/* Send the packet on an output interface */ -static int -l2fwd_send_packet(struct rte_mbuf *m, uint8_t port) -{ - unsigned lcore_id, len; - struct lcore_queue_conf *qconf; - - lcore_id = rte_lcore_id(); - - qconf = &lcore_queue_conf[lcore_id]; - len = qconf->tx_mbufs[port].len; - qconf->tx_mbufs[port].m_table[len] = m; - len++; - - /* enough pkts to be sent */ - if (unlikely(len == MAX_PKT_BURST)) { - l2fwd_send_burst(qconf, MAX_PKT_BURST, port); - len = 0; - } - - qconf->tx_mbufs[port].len = len; - return 0; -} - static void l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) { struct ether_hdr *eth; void *tmp; unsigned dst_port; + int sent; + struct rte_eth_dev_tx_buffer *buffer; dst_port = l2fwd_dst_ports[portid]; eth = rte_pktmbuf_mtod(m, struct ether_hdr *); @@ -646,7 +602,10 @@ l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) /* src addr */ ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->s_addr); - l2fwd_send_packet(m, (uint8_t) dst_port); + buffer = tx_buffer[dst_port]; + sent = rte_eth_tx_buffer(dst_port, 0, buffer, m); + if (sent) + port_statistics[dst_port].tx += sent; } /* main processing loop */ @@ -655,11 +614,14 @@ l2fwd_main_loop(void) { struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; struct rte_mbuf *m; + int sent; unsigned lcore_id; uint64_t prev_tsc, diff_tsc, cur_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; + const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * + BURST_TX_DRAIN_US; + struct rte_eth_dev_tx_buffer *buffer; prev_tsc = 0; @@ -699,13 +661,15 @@ l2fwd_main_loop(void) diff_tsc = cur_tsc - prev_tsc; if (unlikely(diff_tsc > drain_tsc)) { - for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { - if (qconf->tx_mbufs[portid].len == 0) - continue; - l2fwd_send_burst(&lcore_queue_conf[lcore_id], - qconf->tx_mbufs[portid].len, - (uint8_t) portid); - qconf->tx_mbufs[portid].len = 0; + for (i = 0; i < qconf->n_rx_port; i++) { + + portid = l2fwd_dst_ports[qconf->rx_port_list[i]]; + buffer = tx_buffer[portid]; + + sent = rte_eth_tx_buffer_flush(portid, 0, buffer); + if (sent) + port_statistics[portid].tx += sent; + } } @@ -1144,6 +1108,23 @@ main(int argc, char **argv) rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", ret, (unsigned) portid); + /* Initialize TX buffers */ + tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, + rte_eth_dev_socket_id(portid)); + if (tx_buffer[portid] == NULL) + rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", + (unsigned) portid); + + rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST); + + ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid], + rte_eth_tx_buffer_count_callback, + &port_statistics[portid].dropped); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot set error callback for " + "tx buffer on port %u\n", (unsigned) portid); + /* Start device */ ret = rte_eth_dev_start(portid); if (ret < 0) diff --git a/examples/packet_ordering/main.c b/examples/packet_ordering/main.c index 1d9a86fc19..15bb900cab 100644 --- a/examples/packet_ordering/main.c +++ b/examples/packet_ordering/main.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -39,6 +39,7 @@ #include #include #include +#include #include #include #include @@ -54,7 +55,7 @@ #define RING_SIZE 16384 -/* uncommnet below line to enable debug logs */ +/* uncomment below line to enable debug logs */ /* #define DEBUG */ #ifdef DEBUG @@ -86,11 +87,6 @@ struct send_thread_args { struct rte_reorder_buffer *buffer; }; -struct output_buffer { - unsigned count; - struct rte_mbuf *mbufs[MAX_PKTS_BURST]; -}; - volatile struct app_stats { struct { uint64_t rx_pkts; @@ -235,6 +231,68 @@ parse_args(int argc, char **argv) return 0; } +/* + * Tx buffer error callback + */ +static void +flush_tx_error_callback(struct rte_mbuf **unsent, uint16_t count, + void *userdata __rte_unused) { + + /* free the mbufs which failed from transmit */ + app_stats.tx.ro_tx_failed_pkts += count; + LOG_DEBUG(REORDERAPP, "%s:Packet loss with tx_burst\n", __func__); + pktmbuf_free_bulk(unsent, count); + +} + +static inline int +free_tx_buffers(struct rte_eth_dev_tx_buffer *tx_buffer[]) { + const uint8_t nb_ports = rte_eth_dev_count(); + unsigned port_id; + + /* initialize buffers for all ports */ + for (port_id = 0; port_id < nb_ports; port_id++) { + /* skip ports that are not enabled */ + if ((portmask & (1 << port_id)) == 0) + continue; + + rte_free(tx_buffer[port_id]); + } + return 0; +} + +static inline int +configure_tx_buffers(struct rte_eth_dev_tx_buffer *tx_buffer[]) +{ + const uint8_t nb_ports = rte_eth_dev_count(); + unsigned port_id; + int ret; + + /* initialize buffers for all ports */ + for (port_id = 0; port_id < nb_ports; port_id++) { + /* skip ports that are not enabled */ + if ((portmask & (1 << port_id)) == 0) + continue; + + /* Initialize TX buffers */ + tx_buffer[port_id] = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(MAX_PKTS_BURST), 0, + rte_eth_dev_socket_id(port_id)); + if (tx_buffer[port_id] == NULL) + rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n", + (unsigned) port_id); + + rte_eth_tx_buffer_init(tx_buffer[port_id], MAX_PKTS_BURST); + + ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[port_id], + flush_tx_error_callback, NULL); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot set error callback for " + "tx buffer on port %u\n", (unsigned) port_id); + } + return 0; +} + static inline int configure_eth_port(uint8_t port_id) { @@ -438,22 +496,6 @@ worker_thread(void *args_ptr) return 0; } -static inline void -flush_one_port(struct output_buffer *outbuf, uint8_t outp) -{ - unsigned nb_tx = rte_eth_tx_burst(outp, 0, outbuf->mbufs, - outbuf->count); - app_stats.tx.ro_tx_pkts += nb_tx; - - if (unlikely(nb_tx < outbuf->count)) { - /* free the mbufs which failed from transmit */ - app_stats.tx.ro_tx_failed_pkts += (outbuf->count - nb_tx); - LOG_DEBUG(REORDERAPP, "%s:Packet loss with tx_burst\n", __func__); - pktmbuf_free_bulk(&outbuf->mbufs[nb_tx], outbuf->count - nb_tx); - } - outbuf->count = 0; -} - /** * Dequeue mbufs from the workers_to_tx ring and reorder them before * transmitting. @@ -465,12 +507,15 @@ send_thread(struct send_thread_args *args) unsigned int i, dret; uint16_t nb_dq_mbufs; uint8_t outp; - static struct output_buffer tx_buffers[RTE_MAX_ETHPORTS]; + unsigned sent; struct rte_mbuf *mbufs[MAX_PKTS_BURST]; struct rte_mbuf *rombufs[MAX_PKTS_BURST] = {NULL}; + static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, rte_lcore_id()); + configure_tx_buffers(tx_buffer); + while (!quit_signal) { /* deque the mbufs from workers_to_tx ring */ @@ -515,7 +560,7 @@ send_thread(struct send_thread_args *args) dret = rte_reorder_drain(args->buffer, rombufs, MAX_PKTS_BURST); for (i = 0; i < dret; i++) { - struct output_buffer *outbuf; + struct rte_eth_dev_tx_buffer *outbuf; uint8_t outp1; outp1 = rombufs[i]->port; @@ -525,12 +570,15 @@ send_thread(struct send_thread_args *args) continue; } - outbuf = &tx_buffers[outp1]; - outbuf->mbufs[outbuf->count++] = rombufs[i]; - if (outbuf->count == MAX_PKTS_BURST) - flush_one_port(outbuf, outp1); + outbuf = tx_buffer[outp1]; + sent = rte_eth_tx_buffer(outp1, 0, outbuf, rombufs[i]); + if (sent) + app_stats.tx.ro_tx_pkts += sent; } } + + free_tx_buffers(tx_buffer); + return 0; } @@ -542,12 +590,16 @@ tx_thread(struct rte_ring *ring_in) { uint32_t i, dqnum; uint8_t outp; - static struct output_buffer tx_buffers[RTE_MAX_ETHPORTS]; + unsigned sent; struct rte_mbuf *mbufs[MAX_PKTS_BURST]; - struct output_buffer *outbuf; + struct rte_eth_dev_tx_buffer *outbuf; + static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__, rte_lcore_id()); + + configure_tx_buffers(tx_buffer); + while (!quit_signal) { /* deque the mbufs from workers_to_tx ring */ @@ -567,10 +619,10 @@ tx_thread(struct rte_ring *ring_in) continue; } - outbuf = &tx_buffers[outp]; - outbuf->mbufs[outbuf->count++] = mbufs[i]; - if (outbuf->count == MAX_PKTS_BURST) - flush_one_port(outbuf, outp); + outbuf = tx_buffer[outp]; + sent = rte_eth_tx_buffer(outp, 0, outbuf, mbufs[i]); + if (sent) + app_stats.tx.ro_tx_pkts += sent; } } diff --git a/examples/qos_meter/main.c b/examples/qos_meter/main.c index 0de5e7fb55..b968b0012e 100644 --- a/examples/qos_meter/main.c +++ b/examples/qos_meter/main.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -36,6 +36,7 @@ #include #include +#include #include #include #include @@ -118,9 +119,7 @@ static struct rte_eth_conf port_conf = { static uint8_t port_rx; static uint8_t port_tx; static struct rte_mbuf *pkts_rx[PKT_RX_BURST_MAX]; -static struct rte_mbuf *pkts_tx[PKT_TX_BURST_MAX]; -static uint16_t pkts_tx_len = 0; - +struct rte_eth_dev_tx_buffer *tx_buffer; struct rte_meter_srtcm_params app_srtcm_params[] = { {.cir = 1000000 * 46, .cbs = 2048, .ebs = 2048}, @@ -188,27 +187,8 @@ main_loop(__attribute__((unused)) void *dummy) current_time = rte_rdtsc(); time_diff = current_time - last_time; if (unlikely(time_diff > TIME_TX_DRAIN)) { - int ret; - - if (pkts_tx_len == 0) { - last_time = current_time; - - continue; - } - - /* Write packet burst to NIC TX */ - ret = rte_eth_tx_burst(port_tx, NIC_TX_QUEUE, pkts_tx, pkts_tx_len); - - /* Free buffers for any packets not written successfully */ - if (unlikely(ret < pkts_tx_len)) { - for ( ; ret < pkts_tx_len; ret ++) { - rte_pktmbuf_free(pkts_tx[ret]); - } - } - - /* Empty the output buffer */ - pkts_tx_len = 0; - + /* Flush tx buffer */ + rte_eth_tx_buffer_flush(port_tx, NIC_TX_QUEUE, tx_buffer); last_time = current_time; } @@ -222,26 +202,8 @@ main_loop(__attribute__((unused)) void *dummy) /* Handle current packet */ if (app_pkt_handle(pkt, current_time) == DROP) rte_pktmbuf_free(pkt); - else { - pkts_tx[pkts_tx_len] = pkt; - pkts_tx_len ++; - } - - /* Write packets from output buffer to NIC TX when full burst is available */ - if (unlikely(pkts_tx_len == PKT_TX_BURST_MAX)) { - /* Write packet burst to NIC TX */ - int ret = rte_eth_tx_burst(port_tx, NIC_TX_QUEUE, pkts_tx, PKT_TX_BURST_MAX); - - /* Free buffers for any packets not written successfully */ - if (unlikely(ret < PKT_TX_BURST_MAX)) { - for ( ; ret < PKT_TX_BURST_MAX; ret ++) { - rte_pktmbuf_free(pkts_tx[ret]); - } - } - - /* Empty the output buffer */ - pkts_tx_len = 0; - } + else + rte_eth_tx_buffer(port_tx, NIC_TX_QUEUE, tx_buffer, pkt); } } } @@ -397,6 +359,15 @@ main(int argc, char **argv) if (ret < 0) rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_tx, ret); + tx_buffer = rte_zmalloc_socket("tx_buffer", + RTE_ETH_TX_BUFFER_SIZE(PKT_TX_BURST_MAX), 0, + rte_eth_dev_socket_id(port_tx)); + if (tx_buffer == NULL) + rte_exit(EXIT_FAILURE, "Port %d TX buffer allocation error\n", + port_tx); + + rte_eth_tx_buffer_init(tx_buffer, PKT_TX_BURST_MAX); + ret = rte_eth_dev_start(port_rx); if (ret < 0) rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_rx, ret);