-/******************************************************************************\r
-*\r
-* Copyright (c) 2019 Intel.\r
-*\r
-* Licensed under the Apache License, Version 2.0 (the "License");\r
-* you may not use this file except in compliance with the License.\r
-* You may obtain a copy of the License at\r
-*\r
-* http://www.apache.org/licenses/LICENSE-2.0\r
-*\r
-* Unless required by applicable law or agreed to in writing, software\r
-* distributed under the License is distributed on an "AS IS" BASIS,\r
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
-* See the License for the specific language governing permissions and\r
-* limitations under the License.\r
-*\r
-*******************************************************************************/\r
-\r
-/**\r
- * @brief This file has all definitions for the Ethernet Data Interface Layer\r
- * @file ethdi.c\r
- * @ingroup group_lte_source_auxlib\r
- * @author Intel Corporation\r
- **/\r
-\r
-#define _GNU_SOURCE\r
-#include <stdio.h>\r
-#include <string.h>\r
-#include <stdint.h>\r
-#include <errno.h>\r
-#include <sys/queue.h>\r
-#include <err.h>\r
-#include <assert.h>\r
-#include <linux/limits.h>\r
-#include <sys/types.h>\r
-#include <stdlib.h>\r
-#include <sys/time.h>\r
-#include <time.h>\r
-#include <unistd.h>\r
-\r
-#include <rte_config.h>\r
-#include <rte_common.h>\r
-#include <rte_log.h>\r
-#include <rte_memory.h>\r
-#include <rte_memcpy.h>\r
-#include <rte_memzone.h>\r
-#include <rte_eal.h>\r
-#include <rte_per_lcore.h>\r
-#include <rte_launch.h>\r
-#include <rte_atomic.h>\r
-#include <rte_cycles.h>\r
-#include <rte_prefetch.h>\r
-#include <rte_lcore.h>\r
-#include <rte_per_lcore.h>\r
-#include <rte_branch_prediction.h>\r
-#include <rte_interrupts.h>\r
-#include <rte_pci.h>\r
-#include <rte_debug.h>\r
-#include <rte_ethdev.h>\r
-#include <rte_ring.h>\r
-#include <rte_mbuf.h>\r
-#include <rte_timer.h>\r
-\r
-#include "ethernet.h"\r
-#include "ethdi.h"\r
-#include "xran_fh_o_du.h"\r
-#include "xran_mlog_lnx.h"\r
-#include "xran_printf.h"\r
-\r
-#include "../src/xran_lib_mlog_tasks_id.h"\r
-\r
-#define BURST_RX_IO_SIZE 48\r
-\r
-struct xran_ethdi_ctx g_ethdi_ctx = { 0 };\r
-enum xran_if_state xran_if_current_state = XRAN_STOPPED;\r
-\r
-struct rte_mbuf *xran_ethdi_mbuf_alloc(void)\r
-{\r
- return rte_pktmbuf_alloc(_eth_mbuf_pool);\r
-}\r
-\r
-int xran_ethdi_mbuf_send(struct rte_mbuf *mb, uint16_t ethertype)\r
-{\r
- struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();\r
- int res = 0;\r
-\r
- mb->port = ctx->io_cfg.port[ETHDI_UP_VF];\r
- xran_add_eth_hdr_vlan(&ctx->entities[ID_RU], ethertype, mb, ctx->up_vtag);\r
-\r
- res = xran_enqueue_mbuf(mb, ctx->tx_ring[ETHDI_UP_VF]);\r
- return res;\r
-}\r
-\r
-int xran_ethdi_mbuf_send_cp(struct rte_mbuf *mb, uint16_t ethertype)\r
-{\r
- struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();\r
- int res = 0;\r
-\r
- mb->port = ctx->io_cfg.port[ETHDI_CP_VF];\r
- xran_add_eth_hdr_vlan(&ctx->entities[ID_RU], ethertype, mb, ctx->cp_vtag);\r
-\r
- res = xran_enqueue_mbuf(mb, ctx->tx_ring[ETHDI_CP_VF]);\r
- return res;\r
-}\r
-#if 0\r
-void xran_ethdi_stop_tx()\r
-{\r
- struct xran_ethdi_ctx *const ctx = xran_ethdi_get_ctx();\r
- rte_timer_stop_sync(&ctx->timer_tx);\r
-}\r
-#endif\r
-\r
-struct {\r
- uint16_t ethertype;\r
- ethertype_handler fn;\r
-} xran_ethertype_handlers[] = {\r
- { ETHER_TYPE_ETHDI, NULL },\r
- { ETHER_TYPE_ECPRI, NULL },\r
- { ETHER_TYPE_START_TX, NULL }\r
-};\r
-\r
-\r
-\r
-int xran_register_ethertype_handler(uint16_t ethertype, ethertype_handler callback)\r
-{\r
- int i;\r
-\r
- for (i = 0; i < RTE_DIM(xran_ethertype_handlers); ++i)\r
- if (xran_ethertype_handlers[i].ethertype == ethertype) {\r
- xran_ethertype_handlers[i].fn = callback;\r
-\r
- return 1;\r
- }\r
-\r
- elog("support for ethertype %u not found", ethertype);\r
-\r
- return 0;\r
-}\r
-\r
-int xran_handle_ether(uint16_t ethertype, struct rte_mbuf *pkt, uint64_t rx_time)\r
-{\r
- int i;\r
-\r
- for (i = 0; i < RTE_DIM(xran_ethertype_handlers); ++i)\r
- if (xran_ethertype_handlers[i].ethertype == ethertype)\r
- if (xran_ethertype_handlers[i].fn)\r
- return xran_ethertype_handlers[i].fn(pkt, rx_time);\r
-\r
- wlog("Packet with unrecognized ethertype '%.4X' dropped", ethertype);\r
-\r
- return 0;\r
-};\r
-\r
-\r
-/* Process vlan tag. Cut the ethernet header. Call the etherype handlers. */\r
-int xran_ethdi_filter_packet(struct rte_mbuf *pkt, uint64_t rx_time)\r
-{\r
- struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();\r
-\r
-#ifdef VLAN_SUPPORT\r
- if (rte_vlan_strip(pkt) == 0) {\r
- if (pkt->vlan_tci == ctx->cp_vtag) {\r
- dlog("VLAN tci matches %d", pkt->vlan_tci);\r
- } else {\r
- wlog("packet with wrong VLAN tag %d, dropping",\r
- pkt->vlan_tci);\r
- return 0;\r
- }\r
- } else\r
- dlog("Packet not vlan tagged");\r
-#endif\r
-\r
- const struct ether_hdr *eth_hdr = rte_pktmbuf_mtod(pkt, void *);\r
-\r
-#if defined(DPDKIO_DEBUG) && DPDKIO_DEBUG > 1\r
- nlog("*** processing RX'ed packet of size %d ***",\r
- rte_pktmbuf_data_len(pkt));\r
- /* TODO: just dump ethernet header in readable format? */\r
-#endif\r
-\r
-#if defined(DPDKIO_DEBUG) && DPDKIO_DEBUG > 1\r
- {\r
- char dst[ETHER_ADDR_FMT_SIZE] = "(empty)";\r
- char src[ETHER_ADDR_FMT_SIZE] = "(empty)";\r
-\r
- ether_format_addr(dst, sizeof(dst), ð_hdr->d_addr);\r
- ether_format_addr(src, sizeof(src), ð_hdr->s_addr);\r
- nlog("src: %s dst: %s ethertype: %.4X", dst, src,\r
- rte_be_to_cpu_16(eth_hdr->ether_type));\r
- }\r
-#endif\r
-\r
- /* Cut out the ethernet header. It's not needed anymore. */\r
- if (rte_pktmbuf_adj(pkt, sizeof(*eth_hdr)) == NULL) {\r
- wlog("Packet too short, dropping");\r
- return 0;\r
- }\r
-\r
-\r
- return xran_handle_ether(rte_be_to_cpu_16(eth_hdr->ether_type), pkt, rx_time);\r
-}\r
-\r
-#if 0\r
-//-------------------------------------------------------------------------------------------\r
-/** @ingroup xran\r
- *\r
- * @param[in] port - DPDK ETH port id\r
- *\r
- * @return void\r
- *\r
- * @description\r
- * Prints statistics of usage of DPDK port\r
- *\r
-**/\r
-//-------------------------------------------------------------------------------------------\r
-void xran_ethdi_ports_stats(void)\r
-{\r
- struct rte_eth_stats stats;\r
- struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();\r
- int32_t i = 0;\r
-\r
- for(i = 0; i < ETHDI_VF_MAX; i++){\r
- /* Get stats (extended stats includes common stats) */\r
- rte_eth_stats_get(ctx->io_cfg.port[i], &stats);\r
- printf("DPDK stats:\n");\r
- printf("** Port %hhu **\n", ctx->io_cfg.port[i]);\r
- printf("ierrors:\t%lu\n", stats.ierrors);\r
- printf("oerrors:\t%lu\n", stats.oerrors);\r
- printf("ipackets:\t%lu\n", stats.ipackets);\r
- printf("opackets:\t%lu\n", stats.opackets);\r
- printf("imissed:\t%lu\n", stats.imissed);\r
- printf("rx_nombuf:\t%lu\n", stats.rx_nombuf);\r
- }\r
- return ;\r
-}\r
-#endif\r
-/* Check the link status of all ports in up to 9s, and print them finally */\r
-static void check_port_link_status(uint8_t portid)\r
-{\r
-#define CHECK_INTERVAL 100 /* 100ms */\r
-#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */\r
- uint8_t count, all_ports_up, print_flag = 0;\r
- struct rte_eth_link link;\r
-\r
- printf("\nChecking link status");\r
- fflush(stdout);\r
- for (count = 0; count <= MAX_CHECK_TIME; count++) {\r
- all_ports_up = 1;\r
- memset(&link, 0, sizeof(link));\r
- rte_eth_link_get_nowait(portid, &link);\r
-\r
- /* print link status if flag set */\r
- if (print_flag == 1) {\r
- if (link.link_status)\r
- printf("Port %d Link Up - speed %u "\r
- "Mbps - %s\n", (uint8_t)portid,\r
- (unsigned)link.link_speed,\r
- (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?\r
- ("full-duplex") : ("half-duplex\n"));\r
- else\r
- printf("Port %d Link Down\n",\r
- (uint8_t)portid);\r
- }\r
- /* clear all_ports_up flag if any link down */\r
- if (link.link_status == ETH_LINK_DOWN) {\r
- all_ports_up = 0;\r
- break;\r
- }\r
- /* after finally printing all link status, get out */\r
- if (print_flag == 1)\r
- break;\r
-\r
- if (all_ports_up == 0) {\r
- printf(".");\r
- fflush(stdout);\r
- rte_delay_ms(CHECK_INTERVAL);\r
- }\r
-\r
- /* set the print_flag if all ports up or timeout */\r
- if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {\r
- print_flag = 1;\r
- printf(" ... done\n");\r
- }\r
- }\r
-}\r
-\r
-\r
-int xran_ethdi_init_dpdk_io(char *name, const struct xran_io_loop_cfg *io_cfg,\r
- int *lcore_id, struct ether_addr *p_lls_cu_addr, struct ether_addr *p_ru_addr,\r
- uint16_t cp_vlan, uint16_t up_vlan)\r
-{\r
- uint16_t port[2] = {0xffff, 0xffff};\r
- struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();\r
- int i;\r
- char core_mask[64];\r
- long c_mask=0;\r
- char bbdev_wdev[32] = "";\r
- char bbdev_vdev[32] = "";\r
-\r
- char *argv[] = { name, /*"-c 0xFFFFF00000FFFFF"*/core_mask, "-n2", "--socket-mem=8192", "--proc-type=auto",\r
- "--file-prefix", name, "-w", "0000:00:00.0", bbdev_wdev, bbdev_vdev};\r
-\r
- if (io_cfg == NULL)\r
- return 0;\r
- if(io_cfg->bbdev_mode != XRAN_BBDEV_NOT_USED){\r
- printf("BBDEV_FEC_ACCL_NR5G\n");\r
- if (io_cfg->bbdev_mode == XRAN_BBDEV_MODE_HW_ON){\r
- // hw-accelerated bbdev\r
- printf("hw-accelerated bbdev %s\n", io_cfg->bbdev_dev[0]);\r
- snprintf(bbdev_wdev, sizeof(bbdev_wdev), "-w %s", io_cfg->bbdev_dev[0]);\r
- } else if (io_cfg->bbdev_mode == XRAN_BBDEV_MODE_HW_OFF){\r
- // hw-accelerated bbdev disable\r
- if(io_cfg->bbdev_dev[0]){\r
- printf("hw-accelerated bbdev disable %s\n", io_cfg->bbdev_dev[0]);\r
- snprintf(bbdev_wdev, sizeof(bbdev_wdev), "-b %s", io_cfg->bbdev_dev[0]);\r
- }\r
- snprintf(bbdev_wdev, sizeof(bbdev_wdev), "%s", "--vdev=baseband_turbo_sw");\r
- } else {\r
- rte_panic("Cannot init DPDK incorrect [bbdev_mode %d]\n", io_cfg->bbdev_mode);\r
- }\r
- }\r
-\r
- c_mask = (long)(1L << io_cfg->core) |\r
- (long)(1L << io_cfg->system_core) |\r
- (long)(1L << io_cfg->pkt_proc_core) |\r
- (long)(1L << io_cfg->pkt_aux_core) |\r
- (long)(1L << io_cfg->timing_core);\r
-\r
- printf("c_mask 0x%lx core %d system_core %d pkt_proc_core %d pkt_aux_core %d timing_core %d\n",\r
- c_mask, io_cfg->core, io_cfg->system_core, io_cfg->pkt_proc_core, io_cfg->pkt_aux_core, io_cfg->timing_core);\r
-\r
- snprintf(core_mask, sizeof(core_mask), "-c 0x%lx", c_mask);\r
-\r
- ctx->io_cfg = *io_cfg;\r
- ctx->ping_state = PING_IDLE;\r
- ctx->known_peers = 1;\r
- ctx->busy_poll_till = rte_rdtsc();\r
- ctx->cp_vtag = cp_vlan;\r
- ctx->up_vtag = up_vlan;\r
-\r
- for (i = 0; i <= ID_BROADCAST; i++) /* Initialize all as broadcast */\r
- memset(&ctx->entities[i], 0xFF, sizeof(ctx->entities[0]));\r
-\r
- printf("%s: Calling rte_eal_init:", __FUNCTION__);\r
- for (i = 0; i < RTE_DIM(argv); i++)\r
- {\r
- printf("%s ", argv[i]);\r
- }\r
- printf("\n");\r
-\r
-\r
- /* This will return on system_core, which is not necessarily the\r
- * one we're on right now. */\r
- if (rte_eal_init(RTE_DIM(argv), argv) < 0)\r
- rte_panic("Cannot init EAL: %s\n", rte_strerror(rte_errno));\r
-\r
- xran_init_mbuf_pool();\r
-\r
-#ifdef RTE_LIBRTE_PDUMP\r
- /* initialize packet capture framework */\r
- rte_pdump_init(NULL);\r
-#endif\r
-\r
- /* Timers. */\r
- rte_timer_subsystem_init();\r
- rte_timer_init(&ctx->timer_ping);\r
- rte_timer_init(&ctx->timer_sync);\r
- rte_timer_init(&ctx->timer_tx);\r
-\r
- *lcore_id = rte_get_next_lcore(rte_lcore_id(), 0, 0);\r
-\r
- PANIC_ON(*lcore_id == RTE_MAX_LCORE, "out of lcores for io_loop()");\r
-\r
- if (rte_eal_process_type() == RTE_PROC_PRIMARY) {\r
- for (i = 0; i < ETHDI_VF_MAX; i ++){\r
- if(io_cfg->dpdk_dev[i]){\r
- if (rte_eth_dev_attach(io_cfg->dpdk_dev[i], &port[i]) != 0 ||\r
- rte_eth_dev_count_avail() == 0)\r
- errx(1, "Network port doesn't exist.");\r
- xran_init_port(port[i], p_lls_cu_addr);\r
- } else {\r
- printf("no DPDK port provided\n");\r
- }\r
- if(i==0){\r
- ctx->tx_ring[i] = rte_ring_create("tx_ring_up", NUM_MBUFS,\r
- rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);\r
- ctx->rx_ring[i] = rte_ring_create("rx_ring_up", NUM_MBUFS,\r
- rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);\r
- ctx->pkt_dump_ring[i] = rte_ring_create("pkt_dump_ring_up", NUM_MBUFS,\r
- rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);\r
- }else {\r
- ctx->tx_ring[i] = rte_ring_create("tx_ring_cp", NUM_MBUFS,\r
- rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);\r
- ctx->rx_ring[i] = rte_ring_create("rx_ring_cp", NUM_MBUFS,\r
- rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);\r
- ctx->pkt_dump_ring[i] = rte_ring_create("pkt_dump_ring_cp", NUM_MBUFS,\r
- rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);\r
- }\r
- if(io_cfg->dpdk_dev[i])\r
- check_port_link_status(port[i]);\r
- }\r
- } else {\r
- rte_panic("ethdi_dpdk_io_loop() failed to start with RTE_PROC_SECONDARY\n");\r
- }\r
- PANIC_ON(ctx->tx_ring == NULL, "failed to allocate tx ring");\r
- PANIC_ON(ctx->rx_ring == NULL, "failed to allocate rx ring");\r
- PANIC_ON(ctx->pkt_dump_ring == NULL, "failed to allocate pkt dumping ring");\r
- for (i = 0; i < ETHDI_VF_MAX; i++){\r
- ctx->io_cfg.port[i] = port[i];\r
- print_dbg("port_id 0x%04x\n", ctx->io_cfg.port[i]);\r
- }\r
-\r
- if(io_cfg->dpdk_dev[ETHDI_UP_VF]){\r
- rte_eth_macaddr_get(port[ETHDI_UP_VF], &ctx->entities[io_cfg->id]);\r
- ether_addr_copy(p_ru_addr, &ctx->entities[ID_RU]);\r
- }\r
-\r
- return 1;\r
-}\r
-\r
-static inline uint16_t xran_tx_from_ring(int port, struct rte_ring *r)\r
-{\r
- struct rte_mbuf *mbufs[BURST_SIZE];\r
- uint16_t dequeued, sent = 0;\r
- uint32_t remaining;\r
- int i;\r
- long t1 = MLogTick();\r
-\r
- dequeued = rte_ring_dequeue_burst(r, (void **)mbufs, BURST_SIZE,\r
- &remaining);\r
- if (!dequeued)\r
- return 0; /* Nothing to send. */\r
-\r
- while (1) { /* When tx queue is full it is trying again till succeed */\r
- t1 = MLogTick();\r
- sent += rte_eth_tx_burst(port, 0, &mbufs[sent], dequeued - sent);\r
-\r
- MLogTask(PID_RADIO_ETH_TX_BURST, t1, MLogTick());\r
-\r
- if (sent == dequeued)\r
- return remaining;\r
- }\r
-}\r
-\r
-int32_t process_dpdk_io(void)\r
-{\r
- struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();\r
- const struct xran_io_loop_cfg *const cfg = &(xran_ethdi_get_ctx()->io_cfg);\r
- const int port[ETHDI_VF_MAX] = {cfg->port[ETHDI_UP_VF], cfg->port[ETHDI_CP_VF]};\r
- int port_id = 0;\r
-\r
- for (port_id = 0; port_id < ETHDI_VF_MAX; port_id++){\r
- struct rte_mbuf *mbufs[BURST_RX_IO_SIZE];\r
- if(port[port_id] == 0xFF)\r
- return 0;\r
- /* RX */\r
- const uint16_t rxed = rte_eth_rx_burst(port[port_id], 0, mbufs, BURST_RX_IO_SIZE);\r
- if (rxed != 0){\r
- unsigned enq_n = 0;\r
- long t1 = MLogTick();\r
- enq_n = rte_ring_enqueue_burst(ctx->rx_ring[port_id], (void*)mbufs, rxed, NULL);\r
- if(rxed - enq_n)\r
- rte_panic("error enq\n");\r
- MLogTask(PID_RADIO_RX_VALIDATE, t1, MLogTick());\r
- }\r
-\r
- /* TX */\r
- const uint16_t sent = xran_tx_from_ring(port[port_id], ctx->tx_ring[port_id]);\r
-\r
- if (XRAN_STOPPED == xran_if_current_state)\r
- return -1;\r
- }\r
-\r
- if (XRAN_STOPPED == xran_if_current_state)\r
- return -1;\r
-\r
- return 0;\r
-}\r
-\r
-#if 0\r
-static inline void xran_process_rx_burst(struct rte_mbuf *mbufs[], uint16_t n_mbufs,\r
- uint64_t rx_time)\r
-{\r
- int i;\r
-\r
- if (!n_mbufs)\r
- return;\r
-\r
- for (i = 0; i < n_mbufs; ++i)\r
- {\r
- if (xran_ethdi_filter_packet(mbufs[i], rx_time) == MBUF_FREE)\r
- rte_pktmbuf_free(mbufs[i]);\r
- }\r
-\r
-#ifdef DPDKIO_LATENCY_DEBUG\r
- struct timeval tv_now, tv_diff;\r
-\r
- gettimeofday(&tv_now, NULL);\r
- if (n_mbufs > 1)\r
- nlog("Warning - received %d mbufs in a row", n_mbufs);\r
-\r
- timersub(&tv_now, &rx_time, &tv_diff);\r
- nlog("rx processing took %d usec", tv_diff.tv_usec);\r
-#endif\r
-}\r
-\r
-/*\r
- * This is the main DPDK-IO loop.\r
- * This will sleep if there's no packets incoming and there's\r
- * no work enqueued, sleep lenth is defined in IDLE_SLEEP_MICROSECS\r
- */\r
-int xran_ethdi_dpdk_io_loop(void *io_loop_cfg)\r
-{\r
- struct sched_param sched_param;\r
- int res = 0;\r
- struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();\r
- const struct xran_io_loop_cfg *const cfg = &(xran_ethdi_get_ctx()->io_cfg);\r
- const int port[ETHDI_VF_MAX] = {cfg->port[ETHDI_UP_VF], cfg->port[ETHDI_CP_VF]};\r
-\r
- printf("%s [PORT: %d %d] [CPU %2d] [PID: %6d]\n", __FUNCTION__, port[ETHDI_UP_VF], port[ETHDI_CP_VF] , rte_lcore_id(), getpid());\r
-\r
- printf("%s [CPU %2d] [PID: %6d]\n", __FUNCTION__, rte_lcore_id(), getpid());\r
- sched_param.sched_priority = XRAN_THREAD_DEFAULT_PRIO;\r
- if ((res = pthread_setschedparam(pthread_self(), SCHED_FIFO, &sched_param))) {\r
- printf("priority is not changed: coreId = %d, result1 = %d\n",rte_lcore_id(), res);\r
- }\r
-\r
- for (;;){\r
- if(process_dpdk_io()!=0)\r
- break;\r
- }\r
-\r
- fflush(stderr);\r
- fflush(stdout);\r
- puts("IO loop finished");\r
-\r
- return 0;\r
-}\r
-#endif\r
-\r
+/******************************************************************************
+*
+* Copyright (c) 2019 Intel.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*
+*******************************************************************************/
+
+/**
+ * @brief This file has all definitions for the Ethernet Data Interface Layer
+ * @file ethdi.c
+ * @ingroup group_lte_source_auxlib
+ * @author Intel Corporation
+ **/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <errno.h>
+#include <sys/queue.h>
+#include <err.h>
+#include <assert.h>
+#include <linux/limits.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <rte_config.h>
+#include <rte_common.h>
+#include <rte_log.h>
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_launch.h>
+#include <rte_atomic.h>
+#include <rte_cycles.h>
+#include <rte_prefetch.h>
+#include <rte_lcore.h>
+#include <rte_per_lcore.h>
+#include <rte_branch_prediction.h>
+#include <rte_interrupts.h>
+#include <rte_pci.h>
+#include <rte_debug.h>
+#include <rte_ethdev.h>
+#include <rte_ring.h>
+#include <rte_mbuf.h>
+#include <rte_timer.h>
+
+#include "ethernet.h"
+#include "ethdi.h"
+#include "xran_fh_o_du.h"
+#include "xran_mlog_lnx.h"
+#include "xran_printf.h"
+
+#include "../src/xran_lib_mlog_tasks_id.h"
+
+#define BURST_RX_IO_SIZE 48
+
+struct xran_ethdi_ctx g_ethdi_ctx = { 0 };
+enum xran_if_state xran_if_current_state = XRAN_STOPPED;
+
+struct rte_mbuf *xran_ethdi_mbuf_alloc(void)
+{
+ return rte_pktmbuf_alloc(_eth_mbuf_pool);
+}
+
+int xran_ethdi_mbuf_send(struct rte_mbuf *mb, uint16_t ethertype)
+{
+ struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();
+ int res = 0;
+
+ mb->port = ctx->io_cfg.port[ETHDI_UP_VF];
+ xran_add_eth_hdr_vlan(&ctx->entities[ID_RU], ethertype, mb, ctx->up_vtag);
+
+ res = xran_enqueue_mbuf(mb, ctx->tx_ring[ETHDI_UP_VF]);
+ return res;
+}
+
+int xran_ethdi_mbuf_send_cp(struct rte_mbuf *mb, uint16_t ethertype)
+{
+ struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();
+ int res = 0;
+
+ mb->port = ctx->io_cfg.port[ETHDI_CP_VF];
+ xran_add_eth_hdr_vlan(&ctx->entities[ID_RU], ethertype, mb, ctx->cp_vtag);
+
+ res = xran_enqueue_mbuf(mb, ctx->tx_ring[ETHDI_CP_VF]);
+ return res;
+}
+#if 0
+void xran_ethdi_stop_tx()
+{
+ struct xran_ethdi_ctx *const ctx = xran_ethdi_get_ctx();
+ rte_timer_stop_sync(&ctx->timer_tx);
+}
+#endif
+
+struct {
+ uint16_t ethertype;
+ ethertype_handler fn;
+} xran_ethertype_handlers[] = {
+ { ETHER_TYPE_ETHDI, NULL },
+ { ETHER_TYPE_ECPRI, NULL },
+ { ETHER_TYPE_START_TX, NULL }
+};
+
+
+
+int xran_register_ethertype_handler(uint16_t ethertype, ethertype_handler callback)
+{
+ int i;
+
+ for (i = 0; i < RTE_DIM(xran_ethertype_handlers); ++i)
+ if (xran_ethertype_handlers[i].ethertype == ethertype) {
+ xran_ethertype_handlers[i].fn = callback;
+
+ return 1;
+ }
+
+ elog("support for ethertype %u not found", ethertype);
+
+ return 0;
+}
+
+int xran_handle_ether(uint16_t ethertype, struct rte_mbuf *pkt, uint64_t rx_time)
+{
+ int i;
+
+ for (i = 0; i < RTE_DIM(xran_ethertype_handlers); ++i)
+ if (xran_ethertype_handlers[i].ethertype == ethertype)
+ if (xran_ethertype_handlers[i].fn)
+ return xran_ethertype_handlers[i].fn(pkt, rx_time);
+
+ wlog("Packet with unrecognized ethertype '%.4X' dropped", ethertype);
+
+ return 0;
+};
+
+
+/* Process vlan tag. Cut the ethernet header. Call the etherype handlers. */
+int xran_ethdi_filter_packet(struct rte_mbuf *pkt, uint64_t rx_time)
+{
+ struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();
+
+#ifdef VLAN_SUPPORT
+ if (rte_vlan_strip(pkt) == 0) {
+ if (pkt->vlan_tci == ctx->cp_vtag) {
+ dlog("VLAN tci matches %d", pkt->vlan_tci);
+ } else {
+ wlog("packet with wrong VLAN tag %d, dropping",
+ pkt->vlan_tci);
+ return 0;
+ }
+ } else
+ dlog("Packet not vlan tagged");
+#endif
+
+ const struct ether_hdr *eth_hdr = rte_pktmbuf_mtod(pkt, void *);
+
+#if defined(DPDKIO_DEBUG) && DPDKIO_DEBUG > 1
+ nlog("*** processing RX'ed packet of size %d ***",
+ rte_pktmbuf_data_len(pkt));
+ /* TODO: just dump ethernet header in readable format? */
+#endif
+
+#if defined(DPDKIO_DEBUG) && DPDKIO_DEBUG > 1
+ {
+ char dst[ETHER_ADDR_FMT_SIZE] = "(empty)";
+ char src[ETHER_ADDR_FMT_SIZE] = "(empty)";
+
+ ether_format_addr(dst, sizeof(dst), ð_hdr->d_addr);
+ ether_format_addr(src, sizeof(src), ð_hdr->s_addr);
+ nlog("src: %s dst: %s ethertype: %.4X", dst, src,
+ rte_be_to_cpu_16(eth_hdr->ether_type));
+ }
+#endif
+
+ /* Cut out the ethernet header. It's not needed anymore. */
+ if (rte_pktmbuf_adj(pkt, sizeof(*eth_hdr)) == NULL) {
+ wlog("Packet too short, dropping");
+ return 0;
+ }
+
+
+ return xran_handle_ether(rte_be_to_cpu_16(eth_hdr->ether_type), pkt, rx_time);
+}
+
+#if 0
+//-------------------------------------------------------------------------------------------
+/** @ingroup xran
+ *
+ * @param[in] port - DPDK ETH port id
+ *
+ * @return void
+ *
+ * @description
+ * Prints statistics of usage of DPDK port
+ *
+**/
+//-------------------------------------------------------------------------------------------
+void xran_ethdi_ports_stats(void)
+{
+ struct rte_eth_stats stats;
+ struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();
+ int32_t i = 0;
+
+ for(i = 0; i < ETHDI_VF_MAX; i++){
+ /* Get stats (extended stats includes common stats) */
+ rte_eth_stats_get(ctx->io_cfg.port[i], &stats);
+ printf("DPDK stats:\n");
+ printf("** Port %hhu **\n", ctx->io_cfg.port[i]);
+ printf("ierrors:\t%lu\n", stats.ierrors);
+ printf("oerrors:\t%lu\n", stats.oerrors);
+ printf("ipackets:\t%lu\n", stats.ipackets);
+ printf("opackets:\t%lu\n", stats.opackets);
+ printf("imissed:\t%lu\n", stats.imissed);
+ printf("rx_nombuf:\t%lu\n", stats.rx_nombuf);
+ }
+ return ;
+}
+#endif
+/* Check the link status of all ports in up to 9s, and print them finally */
+static void check_port_link_status(uint8_t portid)
+{
+#define CHECK_INTERVAL 100 /* 100ms */
+#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
+ uint8_t count, all_ports_up, print_flag = 0;
+ struct rte_eth_link link;
+
+ printf("\nChecking link status");
+ fflush(stdout);
+ for (count = 0; count <= MAX_CHECK_TIME; count++) {
+ all_ports_up = 1;
+ memset(&link, 0, sizeof(link));
+ rte_eth_link_get_nowait(portid, &link);
+
+ /* print link status if flag set */
+ if (print_flag == 1) {
+ if (link.link_status)
+ printf("Port %d Link Up - speed %u "
+ "Mbps - %s\n", (uint8_t)portid,
+ (unsigned)link.link_speed,
+ (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
+ ("full-duplex") : ("half-duplex\n"));
+ else
+ printf("Port %d Link Down\n",
+ (uint8_t)portid);
+ }
+ /* clear all_ports_up flag if any link down */
+ if (link.link_status == ETH_LINK_DOWN) {
+ all_ports_up = 0;
+ break;
+ }
+ /* after finally printing all link status, get out */
+ if (print_flag == 1)
+ break;
+
+ if (all_ports_up == 0) {
+ printf(".");
+ fflush(stdout);
+ rte_delay_ms(CHECK_INTERVAL);
+ }
+
+ /* set the print_flag if all ports up or timeout */
+ if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
+ print_flag = 1;
+ printf(" ... done\n");
+ }
+ }
+}
+
+
+int xran_ethdi_init_dpdk_io(char *name, const struct xran_io_loop_cfg *io_cfg,
+ int *lcore_id, struct ether_addr *p_lls_cu_addr, struct ether_addr *p_ru_addr,
+ uint16_t cp_vlan, uint16_t up_vlan)
+{
+ uint16_t port[2] = {0xffff, 0xffff};
+ struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();
+ int i;
+ char core_mask[64];
+ long c_mask=0;
+ char bbdev_wdev[32] = "";
+ char bbdev_vdev[32] = "";
+
+ char *argv[] = { name, /*"-c 0xFFFFF00000FFFFF"*/core_mask, "-n2", "--socket-mem=8192", "--proc-type=auto",
+ "--file-prefix", name, "-w", "0000:00:00.0", bbdev_wdev, bbdev_vdev};
+
+ if (io_cfg == NULL)
+ return 0;
+ if(io_cfg->bbdev_mode != XRAN_BBDEV_NOT_USED){
+ printf("BBDEV_FEC_ACCL_NR5G\n");
+ if (io_cfg->bbdev_mode == XRAN_BBDEV_MODE_HW_ON){
+ // hw-accelerated bbdev
+ printf("hw-accelerated bbdev %s\n", io_cfg->bbdev_dev[0]);
+ snprintf(bbdev_wdev, sizeof(bbdev_wdev), "-w %s", io_cfg->bbdev_dev[0]);
+ } else if (io_cfg->bbdev_mode == XRAN_BBDEV_MODE_HW_OFF){
+ // hw-accelerated bbdev disable
+ if(io_cfg->bbdev_dev[0]){
+ printf("hw-accelerated bbdev disable %s\n", io_cfg->bbdev_dev[0]);
+ snprintf(bbdev_wdev, sizeof(bbdev_wdev), "-b %s", io_cfg->bbdev_dev[0]);
+ }
+ snprintf(bbdev_wdev, sizeof(bbdev_wdev), "%s", "--vdev=baseband_turbo_sw");
+ } else {
+ rte_panic("Cannot init DPDK incorrect [bbdev_mode %d]\n", io_cfg->bbdev_mode);
+ }
+ }
+
+ c_mask = (long)(1L << io_cfg->core) |
+ (long)(1L << io_cfg->system_core) |
+ (long)(1L << io_cfg->pkt_proc_core) |
+ (long)(1L << io_cfg->pkt_aux_core) |
+ (long)(1L << io_cfg->timing_core);
+
+ printf("c_mask 0x%lx core %d system_core %d pkt_proc_core %d pkt_aux_core %d timing_core %d\n",
+ c_mask, io_cfg->core, io_cfg->system_core, io_cfg->pkt_proc_core, io_cfg->pkt_aux_core, io_cfg->timing_core);
+
+ snprintf(core_mask, sizeof(core_mask), "-c 0x%lx", c_mask);
+
+ ctx->io_cfg = *io_cfg;
+ ctx->ping_state = PING_IDLE;
+ ctx->known_peers = 1;
+ ctx->busy_poll_till = rte_rdtsc();
+ ctx->cp_vtag = cp_vlan;
+ ctx->up_vtag = up_vlan;
+
+ for (i = 0; i <= ID_BROADCAST; i++) /* Initialize all as broadcast */
+ memset(&ctx->entities[i], 0xFF, sizeof(ctx->entities[0]));
+
+ printf("%s: Calling rte_eal_init:", __FUNCTION__);
+ for (i = 0; i < RTE_DIM(argv); i++)
+ {
+ printf("%s ", argv[i]);
+ }
+ printf("\n");
+
+
+ /* This will return on system_core, which is not necessarily the
+ * one we're on right now. */
+ if (rte_eal_init(RTE_DIM(argv), argv) < 0)
+ rte_panic("Cannot init EAL: %s\n", rte_strerror(rte_errno));
+
+ xran_init_mbuf_pool();
+
+#ifdef RTE_LIBRTE_PDUMP
+ /* initialize packet capture framework */
+ rte_pdump_init(NULL);
+#endif
+
+ /* Timers. */
+ rte_timer_subsystem_init();
+ rte_timer_init(&ctx->timer_ping);
+ rte_timer_init(&ctx->timer_sync);
+ rte_timer_init(&ctx->timer_tx);
+
+ *lcore_id = rte_get_next_lcore(rte_lcore_id(), 0, 0);
+
+ PANIC_ON(*lcore_id == RTE_MAX_LCORE, "out of lcores for io_loop()");
+
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ for (i = 0; i < ETHDI_VF_MAX; i ++){
+ if(io_cfg->dpdk_dev[i]){
+ if (rte_eth_dev_attach(io_cfg->dpdk_dev[i], &port[i]) != 0 ||
+ rte_eth_dev_count_avail() == 0)
+ errx(1, "Network port doesn't exist.");
+ xran_init_port(port[i], p_lls_cu_addr);
+ } else {
+ printf("no DPDK port provided\n");
+ }
+ if(i==0){
+ ctx->tx_ring[i] = rte_ring_create("tx_ring_up", NUM_MBUFS,
+ rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);
+ ctx->rx_ring[i] = rte_ring_create("rx_ring_up", NUM_MBUFS,
+ rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);
+ ctx->pkt_dump_ring[i] = rte_ring_create("pkt_dump_ring_up", NUM_MBUFS,
+ rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);
+ }else {
+ ctx->tx_ring[i] = rte_ring_create("tx_ring_cp", NUM_MBUFS,
+ rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);
+ ctx->rx_ring[i] = rte_ring_create("rx_ring_cp", NUM_MBUFS,
+ rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);
+ ctx->pkt_dump_ring[i] = rte_ring_create("pkt_dump_ring_cp", NUM_MBUFS,
+ rte_lcore_to_socket_id(*lcore_id), RING_F_SC_DEQ);
+ }
+ if(io_cfg->dpdk_dev[i])
+ check_port_link_status(port[i]);
+ }
+ } else {
+ rte_panic("ethdi_dpdk_io_loop() failed to start with RTE_PROC_SECONDARY\n");
+ }
+ PANIC_ON(ctx->tx_ring == NULL, "failed to allocate tx ring");
+ PANIC_ON(ctx->rx_ring == NULL, "failed to allocate rx ring");
+ PANIC_ON(ctx->pkt_dump_ring == NULL, "failed to allocate pkt dumping ring");
+ for (i = 0; i < ETHDI_VF_MAX; i++){
+ ctx->io_cfg.port[i] = port[i];
+ print_dbg("port_id 0x%04x\n", ctx->io_cfg.port[i]);
+ }
+
+ if(io_cfg->dpdk_dev[ETHDI_UP_VF]){
+ rte_eth_macaddr_get(port[ETHDI_UP_VF], &ctx->entities[io_cfg->id]);
+ ether_addr_copy(p_ru_addr, &ctx->entities[ID_RU]);
+ }
+
+ return 1;
+}
+
+static inline uint16_t xran_tx_from_ring(int port, struct rte_ring *r)
+{
+ struct rte_mbuf *mbufs[BURST_SIZE];
+ uint16_t dequeued, sent = 0;
+ uint32_t remaining;
+ int i;
+ long t1 = MLogTick();
+
+ dequeued = rte_ring_dequeue_burst(r, (void **)mbufs, BURST_SIZE,
+ &remaining);
+ if (!dequeued)
+ return 0; /* Nothing to send. */
+
+ while (1) { /* When tx queue is full it is trying again till succeed */
+ t1 = MLogTick();
+ sent += rte_eth_tx_burst(port, 0, &mbufs[sent], dequeued - sent);
+
+ MLogTask(PID_RADIO_ETH_TX_BURST, t1, MLogTick());
+
+ if (sent == dequeued)
+ return remaining;
+ }
+}
+
+int32_t process_dpdk_io(void)
+{
+ struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();
+ const struct xran_io_loop_cfg *const cfg = &(xran_ethdi_get_ctx()->io_cfg);
+ const int port[ETHDI_VF_MAX] = {cfg->port[ETHDI_UP_VF], cfg->port[ETHDI_CP_VF]};
+ int port_id = 0;
+
+ for (port_id = 0; port_id < ETHDI_VF_MAX; port_id++){
+ struct rte_mbuf *mbufs[BURST_RX_IO_SIZE];
+ if(port[port_id] == 0xFF)
+ return 0;
+ /* RX */
+ const uint16_t rxed = rte_eth_rx_burst(port[port_id], 0, mbufs, BURST_RX_IO_SIZE);
+ if (rxed != 0){
+ unsigned enq_n = 0;
+ long t1 = MLogTick();
+ enq_n = rte_ring_enqueue_burst(ctx->rx_ring[port_id], (void*)mbufs, rxed, NULL);
+ if(rxed - enq_n)
+ rte_panic("error enq\n");
+ MLogTask(PID_RADIO_RX_VALIDATE, t1, MLogTick());
+ }
+
+ /* TX */
+ const uint16_t sent = xran_tx_from_ring(port[port_id], ctx->tx_ring[port_id]);
+
+ if (XRAN_STOPPED == xran_if_current_state)
+ return -1;
+ }
+
+ if (XRAN_STOPPED == xran_if_current_state)
+ return -1;
+
+ return 0;
+}
+
+#if 0
+static inline void xran_process_rx_burst(struct rte_mbuf *mbufs[], uint16_t n_mbufs,
+ uint64_t rx_time)
+{
+ int i;
+
+ if (!n_mbufs)
+ return;
+
+ for (i = 0; i < n_mbufs; ++i)
+ {
+ if (xran_ethdi_filter_packet(mbufs[i], rx_time) == MBUF_FREE)
+ rte_pktmbuf_free(mbufs[i]);
+ }
+
+#ifdef DPDKIO_LATENCY_DEBUG
+ struct timeval tv_now, tv_diff;
+
+ gettimeofday(&tv_now, NULL);
+ if (n_mbufs > 1)
+ nlog("Warning - received %d mbufs in a row", n_mbufs);
+
+ timersub(&tv_now, &rx_time, &tv_diff);
+ nlog("rx processing took %d usec", tv_diff.tv_usec);
+#endif
+}
+
+/*
+ * This is the main DPDK-IO loop.
+ * This will sleep if there's no packets incoming and there's
+ * no work enqueued, sleep lenth is defined in IDLE_SLEEP_MICROSECS
+ */
+int xran_ethdi_dpdk_io_loop(void *io_loop_cfg)
+{
+ struct sched_param sched_param;
+ int res = 0;
+ struct xran_ethdi_ctx *ctx = xran_ethdi_get_ctx();
+ const struct xran_io_loop_cfg *const cfg = &(xran_ethdi_get_ctx()->io_cfg);
+ const int port[ETHDI_VF_MAX] = {cfg->port[ETHDI_UP_VF], cfg->port[ETHDI_CP_VF]};
+
+ printf("%s [PORT: %d %d] [CPU %2d] [PID: %6d]\n", __FUNCTION__, port[ETHDI_UP_VF], port[ETHDI_CP_VF] , rte_lcore_id(), getpid());
+
+ printf("%s [CPU %2d] [PID: %6d]\n", __FUNCTION__, rte_lcore_id(), getpid());
+ sched_param.sched_priority = XRAN_THREAD_DEFAULT_PRIO;
+ if ((res = pthread_setschedparam(pthread_self(), SCHED_FIFO, &sched_param))) {
+ printf("priority is not changed: coreId = %d, result1 = %d\n",rte_lcore_id(), res);
+ }
+
+ for (;;){
+ if(process_dpdk_io()!=0)
+ break;
+ }
+
+ fflush(stderr);
+ fflush(stdout);
+ puts("IO loop finished");
+
+ return 0;
+}
+#endif
+
Code Review / o-du / phy.git / blobdiff