From d830f80364a33f81c4b534eca902ac7600cbfc05 Mon Sep 17 00:00:00 2001 From: Michal Mazur Date: Fri, 11 Aug 2017 21:18:05 +0200 Subject: Create worker threads using ODP API (direct in/out mode) This patch allows VPP to run multiple worker threads compatible with ODP. By default a single thread is assigned to each interface but this can be changed using "set interface rx-placement" command. Only Direct input/output mode without RSS is supported. Change-Id: Ia6af7e5af4950159eb28b7d56bc9c8d34b80f8d4 Signed-off-by: Michal Mazur --- src/plugins/odp/thread.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 src/plugins/odp/thread.c (limited to 'src/plugins/odp/thread.c') diff --git a/src/plugins/odp/thread.c b/src/plugins/odp/thread.c new file mode 100644 index 00000000..3a5482b5 --- /dev/null +++ b/src/plugins/odp/thread.c @@ -0,0 +1,76 @@ +/* + * Copyright (c) 2017 Cisco and/or its affiliates. + * 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. + */ + +#include +#include +#include +#include +#include + +static clib_error_t * +odp_launch_thread (void *fp, vlib_worker_thread_t * w, unsigned lcore_id) +{ + odp_packet_main_t *om = odp_packet_main; + odp_cpumask_t thd_mask; + odph_odpthread_params_t thr_params; + + if (om->thread_cnt == MAX_WORKERS) + return clib_error_return (0, "Failed to launch thread %u", lcore_id); + + memset (&thr_params, 0, sizeof (thr_params)); + thr_params.start = fp; + thr_params.arg = w; + thr_params.thr_type = ODP_THREAD_WORKER; + thr_params.instance = om->instance; + odp_cpumask_zero (&thd_mask); + odp_cpumask_set (&thd_mask, lcore_id); + + odph_odpthreads_create (&om->thread_tbl[om->thread_cnt], &thd_mask, + &thr_params); + + om->thread_cnt++; + + return 0; +} + +static clib_error_t * +odp_thread_set_lcore (u32 thread, u16 lcore) +{ + + return 0; +} + +static vlib_thread_callbacks_t odp_callbacks = { + .vlib_launch_thread_cb = &odp_launch_thread, + .vlib_thread_set_lcore_cb = &odp_thread_set_lcore, +}; + +static clib_error_t * +odp_thread_init (vlib_main_t * vm) +{ + vlib_thread_cb_register (vm, &odp_callbacks); + return 0; +} + +VLIB_INIT_FUNCTION (odp_thread_init); + +/** @endcond */ +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg