-/*-
- * 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 <stdint.h>
#include <sys/queue.h>
+#include <pthread.h>
#include <rte_atomic.h>
#include <rte_dev.h>
#include <rte_ethdev_driver.h>
#include <rte_devargs.h>
+#include <rte_flow.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"
#define DEVARGS_MAXLEN 4096
+enum rxp_service_state {
+ SS_NO_SERVICE = 0,
+ SS_REGISTERED,
+ SS_READY,
+ SS_RUNNING,
+};
+
/* TYPES */
struct rx_proxy {
int efd;
/* event vector to be used by epoll */
struct rte_epoll_event *evec;
+ /* rte service id */
+ uint32_t sid;
+ /* service core id */
+ uint32_t scid;
+ enum rxp_service_state sstate;
};
struct rxq {
/* sub_flows */
struct rte_flow *flows[FAILSAFE_MAX_ETHPORTS];
/* flow description for synchronization */
- struct rte_flow_desc *fd;
+ struct rte_flow_conv_rule rule;
+ uint8_t rule_data[];
};
enum dev_state {
volatile unsigned int remove:1;
/* flow isolation state */
int flow_isolated:1;
+ /* RMV callback registration state */
+ unsigned int rmv_callback:1;
+ /* LSC callback registration state */
+ unsigned int lsc_callback:1;
};
struct fs_priv {
uint32_t nb_mac_addr;
struct ether_addr mac_addrs[FAILSAFE_MAX_ETHADDR];
uint32_t mac_addr_pool[FAILSAFE_MAX_ETHADDR];
+ uint32_t nb_mcast_addr;
+ struct ether_addr *mcast_addrs;
/* 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.
* Rx interrupts/events proxy.
* The PMD issues Rx events to the EAL on behalf of its subdevices,
* it does that by registering an event-fd for each of its queues with
- * the EAL.
+ * the EAL. A PMD service thread listens to all the Rx events from the
+ * subdevices, when an Rx event is issued by a subdevice it will be
+ * caught by this service with will trigger an Rx event in the
+ * 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;
/* RX / TX */
-void set_burst_fn(struct rte_eth_dev *dev, int force_safe);
+void failsafe_set_burst_fn(struct rte_eth_dev *dev, int force_safe);
uint16_t failsafe_rx_burst(void *rxq,
struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
/* ETH_DEV */
int failsafe_eth_dev_state_sync(struct rte_eth_dev *dev);
+void failsafe_eth_dev_unregister_callbacks(struct sub_device *sdev);
void failsafe_dev_remove(struct rte_eth_dev *dev);
void failsafe_stats_increment(struct rte_eth_stats *to,
struct rte_eth_stats *from);
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 */
extern const char pmd_failsafe_driver_name[];
extern const struct eth_dev_ops failsafe_ops;
extern const struct rte_flow_ops fs_flow_ops;
-extern uint64_t hotplug_poll;
-extern int mac_from_arg;
+extern uint64_t failsafe_hotplug_poll;
+extern int failsafe_mac_from_arg;
/* HELPERS */
&((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;
+ }
+ }
+ 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;
+
+ 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));
+}
+
/*
* Switch emitting device.
* If banned is set, banned must not be considered for
} else {
return;
}
- set_burst_fn(dev, 0);
+ failsafe_set_burst_fn(dev, 0);
rte_wmb();
}