X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Ffailsafe%2Ffailsafe_private.h;h=5d328ffc744706aa110adb71385958f4c82574d9;hb=e940646b20fa;hp=d343ebf676d705c8e7b8d4e3dffa2fcc78dbb70a;hpb=f8244c6399d9fae6afab6770ae367aef38742ea5;p=dpdk.git

diff --git a/drivers/net/failsafe/failsafe_private.h b/drivers/net/failsafe/failsafe_private.h
index d343ebf676..5d328ffc74 100644
--- a/drivers/net/failsafe/failsafe_private.h
+++ b/drivers/net/failsafe/failsafe_private.h
@@ -38,8 +38,9 @@
 
 #include <rte_atomic.h>
 #include <rte_dev.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
 #include <rte_devargs.h>
+#include <rte_interrupts.h>
 
 #define FAILSAFE_DRIVER_NAME "Fail-safe PMD"
 
@@ -48,6 +49,7 @@
 #define PMD_FAILSAFE_PARAM_STRING	\
 	"dev(<ifc>),"			\
 	"exec(<shell command>),"	\
+	"fd(<fd number>),"		\
 	"mac=mac_addr,"			\
 	"hotplug_poll=u64"		\
 	""
@@ -57,14 +59,37 @@
 #define FAILSAFE_MAX_ETHPORTS 2
 #define FAILSAFE_MAX_ETHADDR 128
 
+#define DEVARGS_MAXLEN 4096
+
+enum rxp_service_state {
+	SS_NO_SERVICE = 0,
+	SS_REGISTERED,
+	SS_READY,
+	SS_RUNNING,
+};
+
 /* TYPES */
 
+struct rx_proxy {
+	/* epoll file descriptor */
+	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 {
 	struct fs_priv *priv;
 	uint16_t qid;
-	/* id of last sub_device polled */
-	uint8_t last_polled;
+	/* next sub_device to poll */
+	struct sub_device *sdev;
 	unsigned int socket_id;
+	int event_fd;
+	unsigned int enable_events:1;
 	struct rte_eth_rxq_info info;
 	rte_atomic64_t refcnt[];
 };
@@ -93,8 +118,14 @@ enum dev_state {
 	DEV_STARTED,
 };
 
+struct fs_stats {
+	struct rte_eth_stats stats;
+	uint64_t timestamp;
+};
+
 struct sub_device {
 	/* Exhaustive DPDK device description */
+	struct sub_device *next;
 	struct rte_devargs devargs;
 	struct rte_bus *bus;
 	struct rte_device *dev;
@@ -103,9 +134,11 @@ struct sub_device {
 	/* Device state machine */
 	enum dev_state state;
 	/* Last stats snapshot passed to user */
-	struct rte_eth_stats stats_snapshot;
+	struct fs_stats stats_snapshot;
 	/* Some device are defined as a command line */
 	char *cmdline;
+	/* Others are retrieved through a file descriptor */
+	char *fd_str;
 	/* fail-safe device backreference */
 	struct rte_eth_dev *fs_dev;
 	/* flag calling for recollection */
@@ -134,6 +167,7 @@ struct fs_priv {
 	uint32_t mac_addr_pool[FAILSAFE_MAX_ETHADDR];
 	/* current capabilities */
 	struct rte_eth_dev_info infos;
+	struct rte_intr_handle intr_handle; /* Port interrupt handle. */
 	/*
 	 * Fail-safe state machine.
 	 * This level will be tracking state of the EAL and eth
@@ -143,11 +177,28 @@ struct fs_priv {
 	 */
 	enum dev_state state;
 	struct rte_eth_stats stats_accumulator;
+	/*
+	 * 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. 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;
 	unsigned int pending_alarm:1; /* An alarm is pending */
 	/* flow isolation state */
 	int flow_isolated:1;
 };
 
+/* FAILSAFE_INTR */
+
+int failsafe_rx_intr_install(struct rte_eth_dev *dev);
+void failsafe_rx_intr_uninstall(struct rte_eth_dev *dev);
+int failsafe_rx_intr_install_subdevice(struct sub_device *sdev);
+void failsafe_rx_intr_uninstall_subdevice(struct sub_device *sdev);
+
 /* MISC */
 
 int failsafe_hotplug_alarm_install(struct rte_eth_dev *dev);
@@ -264,13 +315,13 @@ extern int mac_from_arg;
  * a: (rte_atomic64_t)
  */
 #define FS_ATOMIC_P(a) \
-	rte_atomic64_add(&(a), 1)
+	rte_atomic64_set(&(a), 1)
 
 /**
  * a: (rte_atomic64_t)
  */
 #define FS_ATOMIC_V(a) \
-	rte_atomic64_sub(&(a), 1)
+	rte_atomic64_set(&(a), 0)
 
 /**
  * s: (struct sub_device *)
@@ -370,4 +421,15 @@ fs_switch_dev(struct rte_eth_dev *dev,
 	rte_wmb();
 }
 
+/*
+ * Adjust error value and rte_errno to the fail-safe actual error value.
+ */
+static inline int
+fs_err(struct sub_device *sdev, int err)
+{
+	/* A device removal shouldn't be reported as an error. */
+	if (sdev->remove == 1 || err == -EIO)
+		return rte_errno = 0;
+	return err;
+}
 #endif /* _RTE_ETH_FAILSAFE_PRIVATE_H_ */