diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/vnet.am | 1 | ||||
| -rw-r--r-- | src/vnet/devices/dpdk/main.c | 90 | ||||
| -rw-r--r-- | src/vpp/vnet/main.c | 62 |
3 files changed, 91 insertions, 62 deletions
diff --git a/src/vnet.am b/src/vnet.am index 76824fdb262..3b2a25e8654 100644 --- a/src/vnet.am +++ b/src/vnet.am @@ -772,6 +772,7 @@ libvnet_la_SOURCES += \ vnet/devices/dpdk/device.c \ vnet/devices/dpdk/format.c \ vnet/devices/dpdk/init.c \ + vnet/devices/dpdk/main.c \ vnet/devices/dpdk/node.c \ vnet/devices/dpdk/thread.c \ vnet/devices/dpdk/hqos.c \ diff --git a/src/vnet/devices/dpdk/main.c b/src/vnet/devices/dpdk/main.c new file mode 100644 index 00000000000..1e6ec2f892f --- /dev/null +++ b/src/vnet/devices/dpdk/main.c @@ -0,0 +1,90 @@ +/* + * 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 <vnet/vnet.h> +#include <vnet/devices/dpdk/dpdk.h> + + +/* + * Called by the dpdk driver's rte_delay_us() function. + * Return 0 to have the dpdk do a regular delay loop. + * Return 1 if to skip the delay loop because we are suspending + * the calling vlib process instead. + */ +int +rte_delay_us_override (unsigned us) +{ + vlib_main_t *vm; + + /* Don't bother intercepting for short delays */ + if (us < 10) + return 0; + + /* + * Only intercept if we are in a vlib process. + * If we are called from a vlib worker thread or the vlib main + * thread then do not intercept. (Must not be called from an + * independent pthread). + */ + if (os_get_cpu_number () == 0) + { + /* + * We're in the vlib main thread or a vlib process. Make sure + * the process is running and we're not still initializing. + */ + vm = vlib_get_main (); + if (vlib_in_process_context (vm)) + { + /* Only suspend for the admin_down_process */ + vlib_process_t *proc = vlib_get_current_process (vm); + if (!(proc->flags & VLIB_PROCESS_IS_RUNNING) || + (proc->node_runtime.function != admin_up_down_process)) + return 0; + + f64 delay = 1e-6 * us; + vlib_process_suspend (vm, delay); + return 1; + } + } + return 0; // no override +} + +#if RTE_VERSION >= RTE_VERSION_NUM(16, 11, 0, 0) +static void +rte_delay_us_override_cb (unsigned us) +{ + if (rte_delay_us_override (us) == 0) + rte_delay_us_block (us); +} +#endif + +static clib_error_t * dpdk_main_init (vlib_main_t * vm) +{ + clib_error_t * error = 0; + + if ((error = vlib_call_init_function (vm, dpdk_init))) + return error; + +#if DPDK +#if RTE_VERSION >= RTE_VERSION_NUM(16, 11, 0, 0) + /* register custom delay function */ + rte_delay_us_callback_register (rte_delay_us_override_cb); +#endif +#endif + return error; +} + +VLIB_INIT_FUNCTION (dpdk_main_init); + diff --git a/src/vpp/vnet/main.c b/src/vpp/vnet/main.c index e4695e1ea4c..a252b84663a 100644 --- a/src/vpp/vnet/main.c +++ b/src/vpp/vnet/main.c @@ -21,62 +21,6 @@ #include <vpp/api/vpe_msg_enum.h> -#if DPDK -#include <vnet/devices/dpdk/dpdk.h> - -/* - * Called by the dpdk driver's rte_delay_us() function. - * Return 0 to have the dpdk do a regular delay loop. - * Return 1 if to skip the delay loop because we are suspending - * the calling vlib process instead. - */ -int -rte_delay_us_override (unsigned us) -{ - vlib_main_t *vm; - - /* Don't bother intercepting for short delays */ - if (us < 10) - return 0; - - /* - * Only intercept if we are in a vlib process. - * If we are called from a vlib worker thread or the vlib main - * thread then do not intercept. (Must not be called from an - * independent pthread). - */ - if (os_get_cpu_number () == 0) - { - /* - * We're in the vlib main thread or a vlib process. Make sure - * the process is running and we're not still initializing. - */ - vm = vlib_get_main (); - if (vlib_in_process_context (vm)) - { - /* Only suspend for the admin_down_process */ - vlib_process_t *proc = vlib_get_current_process (vm); - if (!(proc->flags & VLIB_PROCESS_IS_RUNNING) || - (proc->node_runtime.function != admin_up_down_process)) - return 0; - - f64 delay = 1e-6 * us; - vlib_process_suspend (vm, delay); - return 1; - } - } - return 0; // no override -} - -#if RTE_VERSION >= RTE_VERSION_NUM(16, 11, 0, 0) -static void -rte_delay_us_override_cb (unsigned us) -{ - if (rte_delay_us_override (us) == 0) - rte_delay_us_block (us); -} -#endif -#endif static void vpe_main_init (vlib_main_t * vm) @@ -89,12 +33,6 @@ vpe_main_init (vlib_main_t * vm) /* Turn off network stack components which we don't want */ vlib_mark_init_function_complete (vm, srp_init); -#if DPDK -#if RTE_VERSION >= RTE_VERSION_NUM(16, 11, 0, 0) - /* register custom delay function */ - rte_delay_us_callback_register (rte_delay_us_override_cb); -#endif -#endif } /* |