From: Pavan Nikhilesh Date: Tue, 28 Jan 2020 05:35:02 +0000 (+0530) Subject: examples/l3fwd: add event lpm main loop X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=99fc91d18082688533c008bc0f500f69522c8900;p=dpdk.git examples/l3fwd: add event lpm main loop Add lpm main loop for handling events based on capabilities of the event device. Signed-off-by: Pavan Nikhilesh Acked-by: Jerin Jacob --- diff --git a/examples/l3fwd/l3fwd.h b/examples/l3fwd/l3fwd.h index ed5ba5f3ba..b3cdcd4963 100644 --- a/examples/l3fwd/l3fwd.h +++ b/examples/l3fwd/l3fwd.h @@ -207,6 +207,15 @@ em_main_loop(__attribute__((unused)) void *dummy); int lpm_main_loop(__attribute__((unused)) void *dummy); +int +lpm_event_main_loop_tx_d(__attribute__((unused)) void *dummy); +int +lpm_event_main_loop_tx_d_burst(__attribute__((unused)) void *dummy); +int +lpm_event_main_loop_tx_q(__attribute__((unused)) void *dummy); +int +lpm_event_main_loop_tx_q_burst(__attribute__((unused)) void *dummy); + /* Return ipv4/ipv6 fwd lookup struct for LPM or EM. */ void * em_get_ipv4_l3fwd_lookup_struct(const int socketid); diff --git a/examples/l3fwd/l3fwd_event.c b/examples/l3fwd/l3fwd_event.c index 1ed42c3ab5..ebddd8f976 100644 --- a/examples/l3fwd/l3fwd_event.c +++ b/examples/l3fwd/l3fwd_event.c @@ -211,6 +211,12 @@ void l3fwd_event_resource_setup(struct rte_eth_conf *port_conf) { struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc(); + const event_loop_cb lpm_event_loop[2][2] = { + [0][0] = lpm_event_main_loop_tx_d, + [0][1] = lpm_event_main_loop_tx_d_burst, + [1][0] = lpm_event_main_loop_tx_q, + [1][1] = lpm_event_main_loop_tx_q_burst, + }; uint32_t event_queue_cfg; int ret; @@ -242,4 +248,7 @@ l3fwd_event_resource_setup(struct rte_eth_conf *port_conf) ret = rte_event_dev_start(evt_rsrc->event_d_id); if (ret < 0) rte_exit(EXIT_FAILURE, "Error in starting eventdev"); + + evt_rsrc->ops.lpm_event_loop = lpm_event_loop[evt_rsrc->tx_mode_q] + [evt_rsrc->has_burst]; } diff --git a/examples/l3fwd/l3fwd_event.h b/examples/l3fwd/l3fwd_event.h index b1ae970d4b..0e46164170 100644 --- a/examples/l3fwd/l3fwd_event.h +++ b/examples/l3fwd/l3fwd_event.h @@ -14,6 +14,11 @@ #include "l3fwd.h" +#define L3FWD_EVENT_SINGLE 0x1 +#define L3FWD_EVENT_BURST 0x2 +#define L3FWD_EVENT_TX_DIRECT 0x4 +#define L3FWD_EVENT_TX_ENQ 0x8 + typedef uint32_t (*event_device_setup_cb)(void); typedef void (*event_queue_setup_cb)(uint32_t event_queue_cfg); typedef void (*event_port_setup_cb)(void); diff --git a/examples/l3fwd/l3fwd_lpm.c b/examples/l3fwd/l3fwd_lpm.c index 349de2703c..058a60b1d8 100644 --- a/examples/l3fwd/l3fwd_lpm.c +++ b/examples/l3fwd/l3fwd_lpm.c @@ -28,6 +28,7 @@ #include #include "l3fwd.h" +#include "l3fwd_event.h" struct ipv4_l3fwd_lpm_route { uint32_t ip; @@ -254,6 +255,208 @@ lpm_main_loop(__attribute__((unused)) void *dummy) return 0; } +static __rte_always_inline uint16_t +lpm_process_event_pkt(const struct lcore_conf *lconf, struct rte_mbuf *mbuf) +{ + mbuf->port = lpm_get_dst_port(lconf, mbuf, mbuf->port); + +#if defined RTE_ARCH_X86 || defined RTE_MACHINE_CPUFLAG_NEON \ + || defined RTE_ARCH_PPC_64 + process_packet(mbuf, &mbuf->port); +#else + + struct rte_ether_hdr *eth_hdr = rte_pktmbuf_mtod(mbuf, + struct rte_ether_hdr *); +#ifdef DO_RFC_1812_CHECKS + struct rte_ipv4_hdr *ipv4_hdr; + if (RTE_ETH_IS_IPV4_HDR(mbuf->packet_type)) { + /* Handle IPv4 headers.*/ + ipv4_hdr = rte_pktmbuf_mtod_offset(mbuf, + struct rte_ipv4_hdr *, + sizeof(struct rte_ether_hdr)); + + if (is_valid_ipv4_pkt(ipv4_hdr, mbuf->pkt_len) + < 0) { + mbuf->port = BAD_PORT; + continue; + } + /* Update time to live and header checksum */ + --(ipv4_hdr->time_to_live); + ++(ipv4_hdr->hdr_checksum); + } +#endif + /* dst addr */ + *(uint64_t *)ð_hdr->d_addr = dest_eth_addr[mbuf->port]; + + /* src addr */ + rte_ether_addr_copy(&ports_eth_addr[mbuf->port], + ð_hdr->s_addr); +#endif + return mbuf->port; +} + +static __rte_always_inline void +lpm_event_loop_single(struct l3fwd_event_resources *evt_rsrc, + const uint8_t flags) +{ + const int event_p_id = l3fwd_get_free_event_port(evt_rsrc); + const uint8_t tx_q_id = evt_rsrc->evq.event_q_id[ + evt_rsrc->evq.nb_queues - 1]; + const uint8_t event_d_id = evt_rsrc->event_d_id; + struct lcore_conf *lconf; + unsigned int lcore_id; + struct rte_event ev; + + if (event_p_id < 0) + return; + + lcore_id = rte_lcore_id(); + lconf = &lcore_conf[lcore_id]; + + RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id); + while (!force_quit) { + if (!rte_event_dequeue_burst(event_d_id, event_p_id, &ev, 1, 0)) + continue; + + if (lpm_process_event_pkt(lconf, ev.mbuf) == BAD_PORT) { + rte_pktmbuf_free(ev.mbuf); + continue; + } + + if (flags & L3FWD_EVENT_TX_ENQ) { + ev.queue_id = tx_q_id; + ev.op = RTE_EVENT_OP_FORWARD; + while (rte_event_enqueue_burst(event_d_id, event_p_id, + &ev, 1) && !force_quit) + ; + } + + if (flags & L3FWD_EVENT_TX_DIRECT) { + rte_event_eth_tx_adapter_txq_set(ev.mbuf, 0); + while (!rte_event_eth_tx_adapter_enqueue(event_d_id, + event_p_id, &ev, 1, 0) && + !force_quit) + ; + } + } +} + +static __rte_always_inline void +lpm_event_loop_burst(struct l3fwd_event_resources *evt_rsrc, + const uint8_t flags) +{ + const int event_p_id = l3fwd_get_free_event_port(evt_rsrc); + const uint8_t tx_q_id = evt_rsrc->evq.event_q_id[ + evt_rsrc->evq.nb_queues - 1]; + const uint8_t event_d_id = evt_rsrc->event_d_id; + const uint16_t deq_len = evt_rsrc->deq_depth; + struct rte_event events[MAX_PKT_BURST]; + struct lcore_conf *lconf; + unsigned int lcore_id; + int i, nb_enq, nb_deq; + + if (event_p_id < 0) + return; + + lcore_id = rte_lcore_id(); + + lconf = &lcore_conf[lcore_id]; + + RTE_LOG(INFO, L3FWD, "entering %s on lcore %u\n", __func__, lcore_id); + + while (!force_quit) { + /* Read events from RX queues */ + nb_deq = rte_event_dequeue_burst(event_d_id, event_p_id, + events, deq_len, 0); + if (nb_deq == 0) { + rte_pause(); + continue; + } + + for (i = 0; i < nb_deq; i++) { + if (flags & L3FWD_EVENT_TX_ENQ) { + events[i].queue_id = tx_q_id; + events[i].op = RTE_EVENT_OP_FORWARD; + } + + if (flags & L3FWD_EVENT_TX_DIRECT) + rte_event_eth_tx_adapter_txq_set(events[i].mbuf, + 0); + + lpm_process_event_pkt(lconf, events[i].mbuf); + } + + if (flags & L3FWD_EVENT_TX_ENQ) { + nb_enq = rte_event_enqueue_burst(event_d_id, event_p_id, + events, nb_deq); + while (nb_enq < nb_deq && !force_quit) + nb_enq += rte_event_enqueue_burst(event_d_id, + event_p_id, events + nb_enq, + nb_deq - nb_enq); + } + + if (flags & L3FWD_EVENT_TX_DIRECT) { + nb_enq = rte_event_eth_tx_adapter_enqueue(event_d_id, + event_p_id, events, nb_deq, 0); + while (nb_enq < nb_deq && !force_quit) + nb_enq += rte_event_eth_tx_adapter_enqueue( + event_d_id, event_p_id, + events + nb_enq, + nb_deq - nb_enq, 0); + } + } +} + +static __rte_always_inline void +lpm_event_loop(struct l3fwd_event_resources *evt_rsrc, + const uint8_t flags) +{ + if (flags & L3FWD_EVENT_SINGLE) + lpm_event_loop_single(evt_rsrc, flags); + if (flags & L3FWD_EVENT_BURST) + lpm_event_loop_burst(evt_rsrc, flags); +} + +int __rte_noinline +lpm_event_main_loop_tx_d(__attribute__((unused)) void *dummy) +{ + struct l3fwd_event_resources *evt_rsrc = + l3fwd_get_eventdev_rsrc(); + + lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_DIRECT | L3FWD_EVENT_SINGLE); + return 0; +} + +int __rte_noinline +lpm_event_main_loop_tx_d_burst(__attribute__((unused)) void *dummy) +{ + struct l3fwd_event_resources *evt_rsrc = + l3fwd_get_eventdev_rsrc(); + + lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_DIRECT | L3FWD_EVENT_BURST); + return 0; +} + +int __rte_noinline +lpm_event_main_loop_tx_q(__attribute__((unused)) void *dummy) +{ + struct l3fwd_event_resources *evt_rsrc = + l3fwd_get_eventdev_rsrc(); + + lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_ENQ | L3FWD_EVENT_SINGLE); + return 0; +} + +int __rte_noinline +lpm_event_main_loop_tx_q_burst(__attribute__((unused)) void *dummy) +{ + struct l3fwd_event_resources *evt_rsrc = + l3fwd_get_eventdev_rsrc(); + + lpm_event_loop(evt_rsrc, L3FWD_EVENT_TX_ENQ | L3FWD_EVENT_BURST); + return 0; +} + void setup_lpm(const int socketid) { diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c index 4bb00a48ba..b8bd19b414 100644 --- a/examples/l3fwd/main.c +++ b/examples/l3fwd/main.c @@ -1226,6 +1226,7 @@ main(int argc, char **argv) /* Configure eventdev parameters if user has requested */ if (evt_rsrc->enabled) { l3fwd_event_resource_setup(&port_conf); + l3fwd_lkp.main_loop = evt_rsrc->ops.lpm_event_loop; l3fwd_event_service_setup(); } else l3fwd_poll_resource_setup();