diff options
author | Ido Barnea <ibarnea@cisco.com> | 2015-12-09 05:07:44 +0200 |
---|---|---|
committer | Ido Barnea <ibarnea@cisco.com> | 2015-12-27 08:50:12 +0200 |
commit | 509648b87434b9032d38b8ca5ad470ba3edcc036 (patch) | |
tree | 920548ce9e2e5aeed4c88c1b288290505e7d7987 /src/dpdk_lib18/librte_eal/linuxapp/eal/eal_alarm.c | |
parent | b161dc672544a913f7f1ddf3a086dd75f2f1134a (diff) |
Adding dpdk 2.2 instead of dpdk 1.8 and making changes to make compilation work.
40G and 10G filters do not work yet.
Diffstat (limited to 'src/dpdk_lib18/librte_eal/linuxapp/eal/eal_alarm.c')
-rwxr-xr-x | src/dpdk_lib18/librte_eal/linuxapp/eal/eal_alarm.c | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/src/dpdk_lib18/librte_eal/linuxapp/eal/eal_alarm.c b/src/dpdk_lib18/librte_eal/linuxapp/eal/eal_alarm.c deleted file mode 100755 index e8da32fc..00000000 --- a/src/dpdk_lib18/librte_eal/linuxapp/eal/eal_alarm.c +++ /dev/null @@ -1,268 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -#include <stdio.h> -#include <stdint.h> -#include <signal.h> -#include <errno.h> -#include <string.h> -#include <sys/queue.h> -#include <sys/time.h> -#include <sys/timerfd.h> - -#include <rte_memory.h> -#include <rte_memzone.h> -#include <rte_interrupts.h> -#include <rte_alarm.h> -#include <rte_common.h> -#include <rte_per_lcore.h> -#include <rte_tailq.h> -#include <rte_eal.h> -#include <rte_launch.h> -#include <rte_lcore.h> -#include <rte_errno.h> -#include <rte_malloc.h> -#include <rte_spinlock.h> -#include <eal_private.h> - -#ifndef TFD_NONBLOCK -#include <fcntl.h> -#define TFD_NONBLOCK O_NONBLOCK -#endif - -#define NS_PER_US 1000 -#define US_PER_MS 1000 -#define MS_PER_S 1000 -#define US_PER_S (US_PER_MS * MS_PER_S) - -struct alarm_entry { - LIST_ENTRY(alarm_entry) next; - struct timeval time; - rte_eal_alarm_callback cb_fn; - void *cb_arg; - volatile uint8_t executing; - volatile pthread_t executing_id; -}; - -static LIST_HEAD(alarm_list, alarm_entry) alarm_list = LIST_HEAD_INITIALIZER(); -static rte_spinlock_t alarm_list_lk = RTE_SPINLOCK_INITIALIZER; - -static struct rte_intr_handle intr_handle = {.fd = -1 }; -static int handler_registered = 0; -static void eal_alarm_callback(struct rte_intr_handle *hdl, void *arg); - -int -rte_eal_alarm_init(void) -{ - intr_handle.type = RTE_INTR_HANDLE_ALARM; - /* create a timerfd file descriptor */ - intr_handle.fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK); - if (intr_handle.fd == -1) - goto error; - - return 0; - -error: - rte_errno = errno; - return -1; -} - -static void -eal_alarm_callback(struct rte_intr_handle *hdl __rte_unused, - void *arg __rte_unused) -{ - struct timeval now; - struct alarm_entry *ap; - - rte_spinlock_lock(&alarm_list_lk); - while ((ap = LIST_FIRST(&alarm_list)) !=NULL && - gettimeofday(&now, NULL) == 0 && - (ap->time.tv_sec < now.tv_sec || (ap->time.tv_sec == now.tv_sec && - ap->time.tv_usec <= now.tv_usec))){ - ap->executing = 1; - ap->executing_id = pthread_self(); - rte_spinlock_unlock(&alarm_list_lk); - - ap->cb_fn(ap->cb_arg); - - rte_spinlock_lock(&alarm_list_lk); - - LIST_REMOVE(ap, next); - rte_free(ap); - } - - if (!LIST_EMPTY(&alarm_list)) { - struct itimerspec atime = { .it_interval = { 0, 0 } }; - - ap = LIST_FIRST(&alarm_list); - atime.it_value.tv_sec = ap->time.tv_sec; - atime.it_value.tv_nsec = ap->time.tv_usec * NS_PER_US; - /* perform borrow for subtraction if necessary */ - if (now.tv_usec > ap->time.tv_usec) - atime.it_value.tv_sec--, atime.it_value.tv_nsec += US_PER_S * NS_PER_US; - - atime.it_value.tv_sec -= now.tv_sec; - atime.it_value.tv_nsec -= now.tv_usec * NS_PER_US; - timerfd_settime(intr_handle.fd, 0, &atime, NULL); - } - rte_spinlock_unlock(&alarm_list_lk); -} - -int -rte_eal_alarm_set(uint64_t us, rte_eal_alarm_callback cb_fn, void *cb_arg) -{ - struct timeval now; - int ret = 0; - struct alarm_entry *ap, *new_alarm; - - /* Check parameters, including that us won't cause a uint64_t overflow */ - if (us < 1 || us > (UINT64_MAX - US_PER_S) || cb_fn == NULL) - return -EINVAL; - - new_alarm = rte_zmalloc(NULL, sizeof(*new_alarm), 0); - if (new_alarm == NULL) - return -ENOMEM; - - /* use current time to calculate absolute time of alarm */ - gettimeofday(&now, NULL); - - new_alarm->cb_fn = cb_fn; - new_alarm->cb_arg = cb_arg; - new_alarm->time.tv_usec = (now.tv_usec + us) % US_PER_S; - new_alarm->time.tv_sec = now.tv_sec + ((now.tv_usec + us) / US_PER_S); - - rte_spinlock_lock(&alarm_list_lk); - if (!handler_registered) { - ret |= rte_intr_callback_register(&intr_handle, - eal_alarm_callback, NULL); - handler_registered = (ret == 0) ? 1 : 0; - } - - if (LIST_EMPTY(&alarm_list)) - LIST_INSERT_HEAD(&alarm_list, new_alarm, next); - else { - LIST_FOREACH(ap, &alarm_list, next) { - if (ap->time.tv_sec > new_alarm->time.tv_sec || - (ap->time.tv_sec == new_alarm->time.tv_sec && - ap->time.tv_usec > new_alarm->time.tv_usec)){ - LIST_INSERT_BEFORE(ap, new_alarm, next); - break; - } - if (LIST_NEXT(ap, next) == NULL) { - LIST_INSERT_AFTER(ap, new_alarm, next); - break; - } - } - } - - if (LIST_FIRST(&alarm_list) == new_alarm) { - struct itimerspec alarm_time = { - .it_interval = {0, 0}, - .it_value = { - .tv_sec = us / US_PER_S, - .tv_nsec = (us % US_PER_S) * NS_PER_US, - }, - }; - ret |= timerfd_settime(intr_handle.fd, 0, &alarm_time, NULL); - } - rte_spinlock_unlock(&alarm_list_lk); - - return ret; -} - -int -rte_eal_alarm_cancel(rte_eal_alarm_callback cb_fn, void *cb_arg) -{ - struct alarm_entry *ap, *ap_prev; - int count = 0; - int err = 0; - int executing; - - if (!cb_fn) { - rte_errno = EINVAL; - return -1; - } - - do { - executing = 0; - rte_spinlock_lock(&alarm_list_lk); - /* remove any matches at the start of the list */ - while ((ap = LIST_FIRST(&alarm_list)) != NULL && - cb_fn == ap->cb_fn && - (cb_arg == (void *)-1 || cb_arg == ap->cb_arg)) { - - if (ap->executing == 0) { - LIST_REMOVE(ap, next); - rte_free(ap); - count++; - } else { - /* If calling from other context, mark that alarm is executing - * so loop can spin till it finish. Otherwise we are trying to - * cancel our self - mark it by EINPROGRESS */ - if (pthread_equal(ap->executing_id, pthread_self()) == 0) - executing++; - else - err = EINPROGRESS; - - break; - } - } - ap_prev = ap; - - /* now go through list, removing entries not at start */ - LIST_FOREACH(ap, &alarm_list, next) { - /* this won't be true first time through */ - if (cb_fn == ap->cb_fn && - (cb_arg == (void *)-1 || cb_arg == ap->cb_arg)) { - - if (ap->executing == 0) { - LIST_REMOVE(ap, next); - rte_free(ap); - count++; - ap = ap_prev; - } else if (pthread_equal(ap->executing_id, pthread_self()) == 0) - executing++; - else - err = EINPROGRESS; - } - ap_prev = ap; - } - rte_spinlock_unlock(&alarm_list_lk); - } while (executing != 0); - - if (count == 0 && err == 0) - rte_errno = ENOENT; - else if (err) - rte_errno = err; - - return count; -} |