#ifndef _RTE_ETH_FAILSAFE_PRIVATE_H_
#define _RTE_ETH_FAILSAFE_PRIVATE_H_
+#include <sys/queue.h>
+
+#include <rte_atomic.h>
#include <rte_dev.h>
#include <rte_ethdev.h>
#include <rte_devargs.h>
uint8_t last_polled;
unsigned int socket_id;
struct rte_eth_rxq_info info;
+ rte_atomic64_t refcnt[];
};
struct txq {
uint16_t qid;
unsigned int socket_id;
struct rte_eth_txq_info info;
+ rte_atomic64_t refcnt[];
+};
+
+struct rte_flow {
+ TAILQ_ENTRY(rte_flow) next;
+ /* sub_flows */
+ struct rte_flow *flows[FAILSAFE_MAX_ETHPORTS];
+ /* flow description for synchronization */
+ struct rte_flow_desc *fd;
};
enum dev_state {
struct rte_bus *bus;
struct rte_device *dev;
struct rte_eth_dev *edev;
+ uint8_t sid;
/* Device state machine */
enum dev_state state;
/* Some device are defined as a command line */
char *cmdline;
+ /* fail-safe device backreference */
+ struct rte_eth_dev *fs_dev;
+ /* flag calling for recollection */
+ volatile unsigned int remove:1;
+ /* flow isolation state */
+ int flow_isolated:1;
};
struct fs_priv {
uint8_t subs_tail; /* first invalid */
uint8_t subs_tx; /* current emitting device */
uint8_t current_probed;
+ /* flow mapping */
+ TAILQ_HEAD(sub_flows, rte_flow) flow_list;
/* current number of mac_addr slots allocated. */
uint32_t nb_mac_addr;
struct ether_addr mac_addrs[FAILSAFE_MAX_ETHADDR];
*/
enum dev_state state;
unsigned int pending_alarm:1; /* An alarm is pending */
+ /* flow isolation state */
+ int flow_isolated:1;
};
/* MISC */
/* RX / TX */
+void 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);
uint16_t failsafe_tx_burst(void *txq,
struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
+uint16_t failsafe_rx_burst_fast(void *rxq,
+ struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
+uint16_t failsafe_tx_burst_fast(void *txq,
+ struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
+
/* ARGS */
int failsafe_args_parse(struct rte_eth_dev *dev, const char *params);
/* ETH_DEV */
int failsafe_eth_dev_state_sync(struct rte_eth_dev *dev);
+void failsafe_dev_remove(struct rte_eth_dev *dev);
+int failsafe_eth_rmv_event_callback(uint8_t port_id,
+ enum rte_eth_event_type type,
+ void *arg, void *out);
+int failsafe_eth_lsc_event_callback(uint8_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;
#define PORT_ID(sdev) \
(ETH(sdev)->data->port_id)
+/* sdev: (struct sub_device *) */
+#define SUB_ID(sdev) \
+ ((sdev)->sid)
+
/**
* Stateful iterator construct over fail-safe sub-devices:
* s: (struct sub_device *), iterator
#define SUBOPS(s, ops) \
(ETH(s)->dev_ops->ops)
+/**
+ * Atomic guard
+ */
+
+/**
+ * a: (rte_atomic64_t)
+ */
+#define FS_ATOMIC_P(a) \
+ rte_atomic64_add(&(a), 1)
+
+/**
+ * a: (rte_atomic64_t)
+ */
+#define FS_ATOMIC_V(a) \
+ rte_atomic64_sub(&(a), 1)
+
+/**
+ * s: (struct sub_device *)
+ * i: uint16_t qid
+ */
+#define FS_ATOMIC_RX(s, i) \
+ rte_atomic64_read( \
+ &((struct rxq *)((s)->fs_dev->data->rx_queues[i]))->refcnt[(s)->sid] \
+ )
+/**
+ * s: (struct sub_device *)
+ * i: uint16_t qid
+ */
+#define FS_ATOMIC_TX(s, i) \
+ rte_atomic64_read( \
+ &((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__)
#define LOG_(level, ...) LOG__(level, __VA_ARGS__, '\n')
return sid;
}
+/*
+ * Switch emitting device.
+ * If banned is set, banned must not be considered for
+ * the role of emitting device.
+ */
static inline void
-fs_switch_dev(struct rte_eth_dev *dev)
+fs_switch_dev(struct rte_eth_dev *dev,
+ struct sub_device *banned)
{
+ struct sub_device *txd;
enum dev_state req_state;
req_state = PRIV(dev)->state;
- if (PREFERRED_SUBDEV(dev)->state >= req_state) {
- if (TX_SUBDEV(dev) != PREFERRED_SUBDEV(dev) &&
- (TX_SUBDEV(dev) == NULL ||
+ txd = TX_SUBDEV(dev);
+ if (PREFERRED_SUBDEV(dev)->state >= req_state &&
+ PREFERRED_SUBDEV(dev) != banned) {
+ if (txd != PREFERRED_SUBDEV(dev) &&
+ (txd == NULL ||
(req_state == DEV_STARTED) ||
- (TX_SUBDEV(dev) && TX_SUBDEV(dev)->state < DEV_STARTED))) {
+ (txd && txd->state < DEV_STARTED))) {
DEBUG("Switching tx_dev to preferred sub_device");
PRIV(dev)->subs_tx = 0;
}
- } else if ((TX_SUBDEV(dev) && TX_SUBDEV(dev)->state < req_state) ||
- TX_SUBDEV(dev) == NULL) {
+ } else if ((txd && txd->state < req_state) ||
+ txd == NULL ||
+ txd == banned) {
struct sub_device *sdev;
uint8_t i;
/* Using acceptable device */
FOREACH_SUBDEV_STATE(sdev, i, dev, req_state) {
+ if (sdev == banned)
+ continue;
DEBUG("Switching tx_dev to sub_device %d",
i);
PRIV(dev)->subs_tx = i;
break;
}
- } else if (TX_SUBDEV(dev) && TX_SUBDEV(dev)->state < req_state) {
+ } else if (txd && txd->state < req_state) {
DEBUG("No device ready, deactivating tx_dev");
PRIV(dev)->subs_tx = PRIV(dev)->subs_tail;
} else {
return;
}
+ set_burst_fn(dev, 0);
rte_wmb();
}
git.droids-corp.org / dpdk.git / blobdiff