/* calculated RTT cache */
#define RXRPC_RTT_CACHE_SIZE 32
- suseconds_t rtt; /* current RTT estimate (in uS) */
- unsigned int rtt_point; /* next entry at which to insert */
- unsigned int rtt_usage; /* amount of cache actually used */
- suseconds_t rtt_cache[RXRPC_RTT_CACHE_SIZE]; /* calculated RTT cache */
+ u64 rtt; /* Current RTT estimate (in nS) */
+ u64 rtt_sum; /* Sum of cache contents */
+ u64 rtt_cache[RXRPC_RTT_CACHE_SIZE]; /* Determined RTT cache */
+ u8 rtt_cursor; /* next entry at which to insert */
+ u8 rtt_usage; /* amount of cache actually used */
};
/*
RXRPC_CONN_CLIENT_ACTIVE, /* Conn is on active list, doing calls */
RXRPC_CONN_CLIENT_CULLED, /* Conn is culled and delisted, doing calls */
RXRPC_CONN_CLIENT_IDLE, /* Conn is on idle list, doing mostly nothing */
+ RXRPC_CONN__NR_CACHE_STATES
};
/*
int debug_id; /* debug ID for printks */
atomic_t serial; /* packet serial number counter */
unsigned int hi_serial; /* highest serial number received */
+ u32 security_nonce; /* response re-use preventer */
u8 size_align; /* data size alignment (for security) */
- u8 header_size; /* rxrpc + security header size */
u8 security_size; /* security header size */
- u32 security_nonce; /* response re-use preventer */
u8 security_ix; /* security type */
u8 out_clientflag; /* RXRPC_CLIENT_INITIATED if we are client */
};
#define RXRPC_TX_ANNO_UNACK 1
#define RXRPC_TX_ANNO_NAK 2
#define RXRPC_TX_ANNO_RETRANS 3
+#define RXRPC_TX_ANNO_MASK 0x03
+#define RXRPC_TX_ANNO_RESENT 0x04
#define RXRPC_RX_ANNO_JUMBO 0x3f /* Jumbo subpacket number + 1 if not zero */
#define RXRPC_RX_ANNO_JLAST 0x40 /* Set if last element of a jumbo packet */
#define RXRPC_RX_ANNO_VERIFIED 0x80 /* Set if verified and decrypted */
rxrpc_seq_t rx_expect_next; /* Expected next packet sequence number */
u8 rx_winsize; /* Size of Rx window */
u8 tx_winsize; /* Maximum size of Tx window */
+ bool tx_phase; /* T if transmission phase, F if receive phase */
u8 nr_jumbo_bad; /* Number of jumbo dups/exceeds-windows */
/* receive-phase ACK management */
rxrpc_serial_t acks_latest; /* serial number of latest ACK received */
};
+enum rxrpc_skb_trace {
+ rxrpc_skb_rx_cleaned,
+ rxrpc_skb_rx_freed,
+ rxrpc_skb_rx_got,
+ rxrpc_skb_rx_lost,
+ rxrpc_skb_rx_received,
+ rxrpc_skb_rx_rotated,
+ rxrpc_skb_rx_purged,
+ rxrpc_skb_rx_seen,
+ rxrpc_skb_tx_cleaned,
+ rxrpc_skb_tx_freed,
+ rxrpc_skb_tx_got,
+ rxrpc_skb_tx_lost,
+ rxrpc_skb_tx_new,
+ rxrpc_skb_tx_rotated,
+ rxrpc_skb_tx_seen,
+ rxrpc_skb__nr_trace
+};
+
+extern const char rxrpc_skb_traces[rxrpc_skb__nr_trace][7];
+
+enum rxrpc_conn_trace {
+ rxrpc_conn_new_client,
+ rxrpc_conn_new_service,
+ rxrpc_conn_queued,
+ rxrpc_conn_seen,
+ rxrpc_conn_got,
+ rxrpc_conn_put_client,
+ rxrpc_conn_put_service,
+ rxrpc_conn__nr_trace
+};
+
+extern const char rxrpc_conn_traces[rxrpc_conn__nr_trace][4];
+
+enum rxrpc_client_trace {
+ rxrpc_client_activate_chans,
+ rxrpc_client_alloc,
+ rxrpc_client_chan_activate,
+ rxrpc_client_chan_disconnect,
+ rxrpc_client_chan_pass,
+ rxrpc_client_chan_unstarted,
+ rxrpc_client_cleanup,
+ rxrpc_client_count,
+ rxrpc_client_discard,
+ rxrpc_client_duplicate,
+ rxrpc_client_exposed,
+ rxrpc_client_replace,
+ rxrpc_client_to_active,
+ rxrpc_client_to_culled,
+ rxrpc_client_to_idle,
+ rxrpc_client_to_inactive,
+ rxrpc_client_to_waiting,
+ rxrpc_client_uncount,
+ rxrpc_client__nr_trace
+};
+
+extern const char rxrpc_client_traces[rxrpc_client__nr_trace][7];
+extern const char rxrpc_conn_cache_states[RXRPC_CONN__NR_CACHE_STATES][5];
+
enum rxrpc_call_trace {
rxrpc_call_new_client,
rxrpc_call_new_service,
rxrpc_call_queued,
rxrpc_call_queued_ref,
rxrpc_call_seen,
+ rxrpc_call_connected,
+ rxrpc_call_release,
rxrpc_call_got,
rxrpc_call_got_userid,
rxrpc_call_got_kernel,
rxrpc_call_put_userid,
rxrpc_call_put_kernel,
rxrpc_call_put_noqueue,
+ rxrpc_call_error,
rxrpc_call__nr_trace
};
extern const char rxrpc_call_traces[rxrpc_call__nr_trace][4];
+enum rxrpc_transmit_trace {
+ rxrpc_transmit_wait,
+ rxrpc_transmit_queue,
+ rxrpc_transmit_queue_reqack,
+ rxrpc_transmit_queue_last,
+ rxrpc_transmit_rotate,
+ rxrpc_transmit_end,
+ rxrpc_transmit__nr_trace
+};
+
+extern const char rxrpc_transmit_traces[rxrpc_transmit__nr_trace][4];
+
+enum rxrpc_receive_trace {
+ rxrpc_receive_incoming,
+ rxrpc_receive_queue,
+ rxrpc_receive_queue_last,
+ rxrpc_receive_front,
+ rxrpc_receive_rotate,
+ rxrpc_receive_end,
+ rxrpc_receive__nr_trace
+};
+
+extern const char rxrpc_receive_traces[rxrpc_receive__nr_trace][4];
+
+enum rxrpc_recvmsg_trace {
+ rxrpc_recvmsg_enter,
+ rxrpc_recvmsg_wait,
+ rxrpc_recvmsg_dequeue,
+ rxrpc_recvmsg_hole,
+ rxrpc_recvmsg_next,
+ rxrpc_recvmsg_cont,
+ rxrpc_recvmsg_full,
+ rxrpc_recvmsg_data_return,
+ rxrpc_recvmsg_terminal,
+ rxrpc_recvmsg_to_be_accepted,
+ rxrpc_recvmsg_return,
+ rxrpc_recvmsg__nr_trace
+};
+
+extern const char rxrpc_recvmsg_traces[rxrpc_recvmsg__nr_trace][5];
+
+enum rxrpc_rtt_tx_trace {
+ rxrpc_rtt_tx_ping,
+ rxrpc_rtt_tx__nr_trace
+};
+
+extern const char rxrpc_rtt_tx_traces[rxrpc_rtt_tx__nr_trace][5];
+
+enum rxrpc_rtt_rx_trace {
+ rxrpc_rtt_rx_ping_response,
+ rxrpc_rtt_rx__nr_trace
+};
+
+extern const char rxrpc_rtt_rx_traces[rxrpc_rtt_rx__nr_trace][5];
+
extern const char *const rxrpc_pkts[];
extern const char *rxrpc_acks(u8 reason);
/*
* af_rxrpc.c
*/
-extern atomic_t rxrpc_n_skbs;
+extern atomic_t rxrpc_n_tx_skbs, rxrpc_n_rx_skbs;
extern u32 rxrpc_epoch;
extern atomic_t rxrpc_debug_id;
extern struct workqueue_struct *rxrpc_workqueue;
void __rxrpc_disconnect_call(struct rxrpc_connection *, struct rxrpc_call *);
void rxrpc_disconnect_call(struct rxrpc_call *);
void rxrpc_kill_connection(struct rxrpc_connection *);
-void __rxrpc_put_connection(struct rxrpc_connection *);
+bool rxrpc_queue_conn(struct rxrpc_connection *);
+void rxrpc_see_connection(struct rxrpc_connection *);
+void rxrpc_get_connection(struct rxrpc_connection *);
+struct rxrpc_connection *rxrpc_get_connection_maybe(struct rxrpc_connection *);
+void rxrpc_put_service_conn(struct rxrpc_connection *);
void __exit rxrpc_destroy_all_connections(void);
static inline bool rxrpc_conn_is_client(const struct rxrpc_connection *conn)
return !rxrpc_conn_is_client(conn);
}
-static inline void rxrpc_get_connection(struct rxrpc_connection *conn)
-{
- atomic_inc(&conn->usage);
-}
-
-static inline
-struct rxrpc_connection *rxrpc_get_connection_maybe(struct rxrpc_connection *conn)
-{
- return atomic_inc_not_zero(&conn->usage) ? conn : NULL;
-}
-
static inline void rxrpc_put_connection(struct rxrpc_connection *conn)
{
if (!conn)
return;
- if (rxrpc_conn_is_client(conn)) {
- if (atomic_dec_and_test(&conn->usage))
- rxrpc_put_client_conn(conn);
- } else {
- if (atomic_dec_return(&conn->usage) == 1)
- __rxrpc_put_connection(conn);
- }
-}
-
-static inline bool rxrpc_queue_conn(struct rxrpc_connection *conn)
-{
- if (!rxrpc_get_connection_maybe(conn))
- return false;
- if (!rxrpc_queue_work(&conn->processor))
- rxrpc_put_connection(conn);
- return true;
+ if (rxrpc_conn_is_client(conn))
+ rxrpc_put_client_conn(conn);
+ else
+ rxrpc_put_service_conn(conn);
}
/*
* output.c
*/
int rxrpc_send_call_packet(struct rxrpc_call *, u8);
-int rxrpc_send_data_packet(struct rxrpc_connection *, struct sk_buff *);
+int rxrpc_send_data_packet(struct rxrpc_call *, struct sk_buff *);
void rxrpc_reject_packets(struct rxrpc_local *);
/*
*/
void rxrpc_error_report(struct sock *);
void rxrpc_peer_error_distributor(struct work_struct *);
+void rxrpc_peer_add_rtt(struct rxrpc_call *, enum rxrpc_rtt_rx_trace,
+ rxrpc_serial_t, rxrpc_serial_t, ktime_t, ktime_t);
/*
* peer_object.c
*/
void rxrpc_kernel_data_consumed(struct rxrpc_call *, struct sk_buff *);
void rxrpc_packet_destructor(struct sk_buff *);
-void rxrpc_new_skb(struct sk_buff *);
-void rxrpc_see_skb(struct sk_buff *);
-void rxrpc_get_skb(struct sk_buff *);
-void rxrpc_free_skb(struct sk_buff *);
+void rxrpc_new_skb(struct sk_buff *, enum rxrpc_skb_trace);
+void rxrpc_see_skb(struct sk_buff *, enum rxrpc_skb_trace);
+void rxrpc_get_skb(struct sk_buff *, enum rxrpc_skb_trace);
+void rxrpc_free_skb(struct sk_buff *, enum rxrpc_skb_trace);
+void rxrpc_lose_skb(struct sk_buff *, enum rxrpc_skb_trace);
void rxrpc_purge_queue(struct sk_buff_head *);
/*
projects / mirror_ubuntu-bionic-kernel.git / blobdiff