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CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(36860700013)(7416014)(376014)(82310400026)(1800799024); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Oct 2024 05:46:33.3105 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f99bca00-d5dd-4598-a0fb-08dcf8a6360c X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000044F5.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB9466 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Enhance example code to allow topology based lcores API, while retaining default behaviour. - helloworld: allow lcoes to send hello to lcores in selected topology. - l2fwd: allow use of IO lcores topology. - skeleton: choose the lcore from IO topology which has more ports. v3 changes: - fix typo from SE_NO_TOPOLOGY to USE_NO_TOPOLOGY Signed-off-by: Vipin Varghese --- examples/helloworld/main.c | 142 ++++++++++++++++++++++++++++++++++- examples/l2fwd/main.c | 56 ++++++++++++-- examples/skeleton/basicfwd.c | 22 ++++++ 3 files changed, 210 insertions(+), 10 deletions(-) diff --git a/examples/helloworld/main.c b/examples/helloworld/main.c index af509138da..9845c3775c 100644 --- a/examples/helloworld/main.c +++ b/examples/helloworld/main.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include @@ -14,6 +15,14 @@ #include #include #include +#include + +#define RTE_LOGTYPE_HELLOWORLD RTE_LOGTYPE_USER1 +#define USE_NO_TOPOLOGY 0xffff + +static uint16_t topo_sel = USE_NO_TOPOLOGY; +/* lcore selector based on Topology */ +static const char short_options[] = "T:"; /* Launch a function on lcore. 8< */ static int @@ -21,11 +30,109 @@ lcore_hello(__rte_unused void *arg) { unsigned lcore_id; lcore_id = rte_lcore_id(); + printf("hello from core %u\n", lcore_id); return 0; } + +static int +send_lcore_hello(__rte_unused void *arg) +{ + unsigned int lcore_id; + uint16_t send_lcore_id; + uint16_t send_count = 0; + + lcore_id = rte_lcore_id(); + + send_lcore_id = rte_get_next_lcore_from_domain(lcore_id, false, true, topo_sel); + + while ((send_lcore_id != RTE_MAX_LCORE) && (lcore_id != send_lcore_id)) { + printf("hello from core %u to core %u\n", lcore_id, send_lcore_id); + send_lcore_id = rte_get_next_lcore_from_domain(send_lcore_id, + false, true, topo_sel); + send_count += 1; + } + + if (send_count == 0) + RTE_LOG(INFO, HELLOWORLD, "for lcoe %u; no lcores in same domain!!!\n", lcore_id); + + return 0; +} /* >8 End of launching function on lcore. */ +/* display usage. 8< */ +static void +helloworld_usage(const char *prgname) +{ + printf("%s [EAL options] -- [-T TOPO]\n" + " -T TOPO: choose topology to send hello to\n" + " - 0: send cores sharing L1 (SMT)\n" + " - 1: send cores sharing L2\n" + " - 2: send cores sharing L3\n" + " - 3: send cores sharing IO\n\n", + prgname); +} + +static unsigned int +parse_topology(const char *q_arg) +{ + char *end = NULL; + unsigned long n; + + /* parse the topology option */ + n = strtoul(q_arg, &end, 10); + + if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) + return 0; + + if (n > 3) + return USE_NO_TOPOLOGY; + + n = (n == 0) ? RTE_LCORE_DOMAIN_L1 : + (n == 1) ? RTE_LCORE_DOMAIN_L2 : + (n == 2) ? RTE_LCORE_DOMAIN_L3 : + RTE_LCORE_DOMAIN_IO; + + return n; +} + +/* Parse the argument given in the command line of the application */ +static int +helloworld_parse_args(int argc, char **argv) +{ + int opt, ret; + char **argvopt = argv; + int option_index; + char *prgname = argv[0]; + while ((opt = getopt_long(argc, argvopt, short_options, + NULL, &option_index)) != EOF) { + switch (opt) { + /* Topology selection */ + case 'T': + topo_sel = parse_topology(optarg); + if (topo_sel == USE_NO_TOPOLOGY) { + helloworld_usage(prgname); + rte_exit(EXIT_FAILURE, "Invalid Topology selection\n"); + } + + RTE_LOG(DEBUG, HELLOWORLD, "USR selects (%s) domain cores!\n", + (topo_sel == RTE_LCORE_DOMAIN_L1) ? "L1" : + (topo_sel == RTE_LCORE_DOMAIN_L2) ? "L2" : + (topo_sel == RTE_LCORE_DOMAIN_L3) ? "L3" : "IO"); + ret = 0; + break; + default: + helloworld_usage(prgname); + return -1; + } + } + if (optind >= 0) + argv[optind-1] = prgname; + ret = optind-1; + optind = 1; /* reset getopt lib */ + return ret; +} + /* Initialization of Environment Abstraction Layer (EAL). 8< */ int main(int argc, char **argv) @@ -38,15 +145,46 @@ main(int argc, char **argv) rte_panic("Cannot init EAL\n"); /* >8 End of initialization of Environment Abstraction Layer */ + argc -= ret; + argv += ret; + + ret = helloworld_parse_args(argc, argv); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Invalid arguments\n"); + + if (topo_sel != USE_NO_TOPOLOGY) { + uint16_t domain_count = rte_get_domain_count(topo_sel); + RTE_LOG(DEBUG, HELLOWORLD, "selected Domain (%s)\n", + (topo_sel == RTE_LCORE_DOMAIN_L1) ? "L1" : + (topo_sel == RTE_LCORE_DOMAIN_L2) ? "L2" : + (topo_sel == RTE_LCORE_DOMAIN_L3) ? "L3" : "IO"); + + for (int i = 0; i < domain_count; i++) { + uint16_t domain_lcore_count = rte_lcore_count_from_domain(topo_sel, i); + uint16_t domain_lcore = rte_get_lcore_in_domain(topo_sel, i, 0); + + if (domain_lcore_count) + RTE_LOG(DEBUG, HELLOWORLD, "at index (%u), %u cores, lcore (%u) at index 0\n", + i, + domain_lcore_count, + domain_lcore); + } + } + /* Launches the function on each lcore. 8< */ RTE_LCORE_FOREACH_WORKER(lcore_id) { /* Simpler equivalent. 8< */ - rte_eal_remote_launch(lcore_hello, NULL, lcore_id); + rte_eal_remote_launch((topo_sel == USE_NO_TOPOLOGY) ? + lcore_hello : send_lcore_hello, NULL, lcore_id); /* >8 End of simpler equivalent. */ } /* call it on main lcore too */ - lcore_hello(NULL); + if (topo_sel == USE_NO_TOPOLOGY) + lcore_hello(NULL); + else + send_lcore_hello(NULL); + /* >8 End of launching the function on each lcore. */ rte_eal_mp_wait_lcore(); diff --git a/examples/l2fwd/main.c b/examples/l2fwd/main.c index c6fafdd019..398dd15502 100644 --- a/examples/l2fwd/main.c +++ b/examples/l2fwd/main.c @@ -46,6 +46,9 @@ static int mac_updating = 1; /* Ports set in promiscuous mode off by default. */ static int promiscuous_on; +/* select lcores based on ports numa (RTE_LCORE_DOMAIN_IO). */ +static bool select_port_from_io_domain; + #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1 #define MAX_PKT_BURST 32 @@ -314,6 +317,7 @@ l2fwd_usage(const char *prgname) " -P : Enable promiscuous mode\n" " -q NQ: number of queue (=ports) per lcore (default is 1)\n" " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n" + " -t : Enable IO domain lcores mapping to Ports\n" " --no-mac-updating: Disable MAC addresses updating (enabled by default)\n" " When enabled:\n" " - The source MAC address is replaced by the TX port MAC address\n" @@ -431,6 +435,7 @@ static const char short_options[] = "P" /* promiscuous */ "q:" /* number of queues */ "T:" /* timer period */ + "t" /* lcore from port io numa */ ; #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating" @@ -502,6 +507,11 @@ l2fwd_parse_args(int argc, char **argv) timer_period = timer_secs; break; + /* lcores from port io numa */ + case 't': + select_port_from_io_domain = true; + break; + /* long options */ case CMD_LINE_OPT_PORTMAP_NUM: ret = l2fwd_parse_port_pair_config(optarg); @@ -654,7 +664,7 @@ main(int argc, char **argv) uint16_t nb_ports; uint16_t nb_ports_available = 0; uint16_t portid, last_port; - unsigned lcore_id, rx_lcore_id; + uint16_t lcore_id, rx_lcore_id; unsigned nb_ports_in_mask = 0; unsigned int nb_lcores = 0; unsigned int nb_mbufs; @@ -738,18 +748,48 @@ main(int argc, char **argv) qconf = NULL; /* Initialize the port/queue configuration of each logical core */ + if (rte_get_domain_count(RTE_LCORE_DOMAIN_IO) == 0) + rte_exit(EXIT_FAILURE, "we do not have enough cores in IO numa!\n"); + + uint16_t coreindx_io_domain[RTE_MAX_ETHPORTS] = {0}; + uint16_t lcore_io_domain[RTE_MAX_ETHPORTS] = {RTE_MAX_LCORE}; + uint16_t l3_domain_count = rte_get_domain_count(RTE_LCORE_DOMAIN_IO); + + for (int i = 0; i < l3_domain_count; i++) + lcore_io_domain[i] = rte_get_lcore_in_domain(RTE_LCORE_DOMAIN_IO, i, 0); + RTE_ETH_FOREACH_DEV(portid) { /* skip ports that are not enabled */ if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) continue; - /* get the lcore_id for this port */ - while (rte_lcore_is_enabled(rx_lcore_id) == 0 || - lcore_queue_conf[rx_lcore_id].n_rx_port == - l2fwd_rx_queue_per_lcore) { - rx_lcore_id++; - if (rx_lcore_id >= RTE_MAX_LCORE) - rte_exit(EXIT_FAILURE, "Not enough cores\n"); + /* get IO NUMA for the port */ + int port_socket = rte_eth_dev_socket_id(portid); + + if (select_port_from_io_domain == false) { + /* get the lcore_id for this port */ + while ((rte_lcore_is_enabled(rx_lcore_id) == 0) || + (lcore_queue_conf[rx_lcore_id].n_rx_port == + l2fwd_rx_queue_per_lcore)) { + rx_lcore_id++; + if (rx_lcore_id >= RTE_MAX_LCORE) + rte_exit(EXIT_FAILURE, "Not enough cores\n"); + } + } else { + /* get lcore from IO numa for this port */ + rx_lcore_id = lcore_io_domain[port_socket]; + + if (lcore_queue_conf[rx_lcore_id].n_rx_port == l2fwd_rx_queue_per_lcore) { + coreindx_io_domain[port_socket] += 1; + rx_lcore_id = rte_get_lcore_in_domain(RTE_LCORE_DOMAIN_IO, + port_socket, coreindx_io_domain[port_socket]); + } + + if (rx_lcore_id == RTE_MAX_LCORE) + rte_exit(EXIT_FAILURE, "unable find IO (%u) numa lcore for port (%u)\n", + port_socket, portid); + + lcore_io_domain[port_socket] = rx_lcore_id; } if (qconf != &lcore_queue_conf[rx_lcore_id]) { diff --git a/examples/skeleton/basicfwd.c b/examples/skeleton/basicfwd.c index 133293cf15..6d3786b33f 100644 --- a/examples/skeleton/basicfwd.c +++ b/examples/skeleton/basicfwd.c @@ -176,6 +176,11 @@ main(int argc, char *argv[]) unsigned nb_ports; uint16_t portid; + uint16_t ports_socket_domain[RTE_MAX_ETHPORTS] = {0}; + uint16_t sel_io_socket = 0; + uint16_t sel_io_indx = 0; + uint16_t core_count_from_io = 0; + /* Initializion the Environment Abstraction Layer (EAL). 8< */ int ret = rte_eal_init(argc, argv); if (ret < 0) @@ -190,6 +195,20 @@ main(int argc, char *argv[]) if (nb_ports < 2 || (nb_ports & 1)) rte_exit(EXIT_FAILURE, "Error: number of ports must be even\n"); + /* get the socekt of each port */ + RTE_ETH_FOREACH_DEV(portid) { + ports_socket_domain[rte_eth_dev_socket_id(portid)] += 1; + + if (ports_socket_domain[rte_eth_dev_socket_id(portid)] > sel_io_socket) { + sel_io_socket = ports_socket_domain[rte_eth_dev_socket_id(portid)]; + sel_io_indx = rte_eth_dev_socket_id(portid); + } + } + + core_count_from_io = rte_lcore_count_from_domain(RTE_LCORE_DOMAIN_IO, sel_io_indx); + if (core_count_from_io == 0) + printf("\nWARNING: select main_lcore from IO domain (%u)\n", sel_io_indx); + /* Creates a new mempool in memory to hold the mbufs. */ /* Allocates mempool to hold the mbufs. 8< */ @@ -210,6 +229,9 @@ main(int argc, char *argv[]) if (rte_lcore_count() > 1) printf("\nWARNING: Too many lcores enabled. Only 1 used.\n"); + if (rte_lcore_to_socket_id(rte_lcore_id()) != sel_io_indx) + printf("\nWARNING: please use lcore from IO domain %u.\n", sel_io_indx); + /* Call lcore_main on the main core only. Called on single lcore. 8< */ lcore_main(); /* >8 End of called on single lcore. */ -- 2.34.1