-/*-
- * BSD LICENSE
- *
- * Copyright 2017 6WIND S.A.
- * Copyright 2017 Mellanox.
- *
- * 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 6WIND S.A. 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2017 6WIND S.A.
+ * Copyright 2017 Mellanox Technologies, Ltd
*/
#ifndef _RTE_ETH_FAILSAFE_PRIVATE_H_
#define _RTE_ETH_FAILSAFE_PRIVATE_H_
#include <sys/queue.h>
+#include <pthread.h>
#include <rte_atomic.h>
#include <rte_dev.h>
#include <rte_interrupts.h>
#define FAILSAFE_DRIVER_NAME "Fail-safe PMD"
+#define FAILSAFE_OWNER_NAME "Fail-safe"
#define PMD_FAILSAFE_MAC_KVARG "mac"
#define PMD_FAILSAFE_HOTPLUG_POLL_KVARG "hotplug_poll"
uint32_t mac_addr_pool[FAILSAFE_MAX_ETHADDR];
/* current capabilities */
struct rte_eth_dev_info infos;
+ struct rte_eth_dev_owner my_owner; /* Unique owner. */
struct rte_intr_handle intr_handle; /* Port interrupt handle. */
/*
* Fail-safe state machine.
* appropriate failsafe Rx queue.
*/
struct rx_proxy rxp;
+ pthread_mutex_t hotplug_mutex;
+ /* Hot-plug mutex is locked by the alarm mechanism. */
+ volatile unsigned int alarm_lock:1;
unsigned int pending_alarm:1; /* An alarm is pending */
/* flow isolation state */
int flow_isolated:1;
int failsafe_eth_lsc_event_callback(uint16_t port_id,
enum rte_eth_event_type event,
void *cb_arg, void *out);
+int failsafe_eth_new_event_callback(uint16_t port_id,
+ enum rte_eth_event_type event,
+ void *cb_arg, void *out);
/* GLOBALS */
&((struct txq *)((s)->fs_dev->data->tx_queues[i]))->refcnt[(s)->sid] \
)
-#define LOG__(level, m, ...) \
- RTE_LOG(level, PMD, "net_failsafe: " m "%c", __VA_ARGS__)
+#ifdef RTE_EXEC_ENV_BSDAPP
+#define FS_THREADID_TYPE void*
+#define FS_THREADID_FMT "p"
+#else
+#define FS_THREADID_TYPE unsigned long
+#define FS_THREADID_FMT "lu"
+#endif
+
+extern int failsafe_logtype;
+
+#define LOG__(l, m, ...) \
+ rte_log(RTE_LOG_ ## l, failsafe_logtype, \
+ "net_failsafe: " m "%c", __VA_ARGS__)
+
#define LOG_(level, ...) LOG__(level, __VA_ARGS__, '\n')
#define DEBUG(...) LOG_(DEBUG, __VA_ARGS__)
#define INFO(...) LOG_(INFO, __VA_ARGS__)
return &subs[sid];
}
+/*
+ * Lock hot-plug mutex.
+ * is_alarm means that the caller is, for sure, the hot-plug alarm mechanism.
+ */
+static inline int
+fs_lock(struct rte_eth_dev *dev, unsigned int is_alarm)
+{
+ int ret;
+
+ if (is_alarm) {
+ ret = pthread_mutex_trylock(&PRIV(dev)->hotplug_mutex);
+ if (ret) {
+ DEBUG("Hot-plug mutex lock trying failed(%s), will try"
+ " again later...", strerror(ret));
+ return ret;
+ }
+ PRIV(dev)->alarm_lock = 1;
+ } else {
+ ret = pthread_mutex_lock(&PRIV(dev)->hotplug_mutex);
+ if (ret) {
+ ERROR("Cannot lock mutex(%s)", strerror(ret));
+ return ret;
+ }
+ }
+ DEBUG("Hot-plug mutex was locked by thread %" FS_THREADID_FMT "%s",
+ (FS_THREADID_TYPE)pthread_self(),
+ PRIV(dev)->alarm_lock ? " by the hot-plug alarm" : "");
+ return ret;
+}
+
+/*
+ * Unlock hot-plug mutex.
+ * is_alarm means that the caller is, for sure, the hot-plug alarm mechanism.
+ */
+static inline void
+fs_unlock(struct rte_eth_dev *dev, unsigned int is_alarm)
+{
+ int ret;
+ unsigned int prev_alarm_lock = PRIV(dev)->alarm_lock;
+
+ if (is_alarm) {
+ RTE_ASSERT(PRIV(dev)->alarm_lock == 1);
+ PRIV(dev)->alarm_lock = 0;
+ }
+ ret = pthread_mutex_unlock(&PRIV(dev)->hotplug_mutex);
+ if (ret)
+ ERROR("Cannot unlock hot-plug mutex(%s)", strerror(ret));
+ else
+ DEBUG("Hot-plug mutex was unlocked by thread %" FS_THREADID_FMT "%s",
+ (FS_THREADID_TYPE)pthread_self(),
+ prev_alarm_lock ? " by the hot-plug alarm" : "");
+}
+
/*
* Switch emitting device.
* If banned is set, banned must not be considered for