#define rxrpc_queue_delayed_work(WS,D) \
queue_delayed_work(rxrpc_workqueue, (WS), (D))
-#define rxrpc_queue_call(CALL) rxrpc_queue_work(&(CALL)->processor)
-
struct rxrpc_connection;
+/*
+ * Mark applied to socket buffers.
+ */
+enum rxrpc_skb_mark {
+ RXRPC_SKB_MARK_DATA, /* data message */
+ RXRPC_SKB_MARK_FINAL_ACK, /* final ACK received message */
+ RXRPC_SKB_MARK_BUSY, /* server busy message */
+ RXRPC_SKB_MARK_REMOTE_ABORT, /* remote abort message */
+ RXRPC_SKB_MARK_LOCAL_ABORT, /* local abort message */
+ RXRPC_SKB_MARK_NET_ERROR, /* network error message */
+ RXRPC_SKB_MARK_LOCAL_ERROR, /* local error message */
+ RXRPC_SKB_MARK_NEW_CALL, /* local error message */
+};
+
/*
* sk_state for RxRPC sockets
*/
RXRPC_CLOSE, /* socket is being closed */
};
+/*
+ * Service backlog preallocation.
+ *
+ * This contains circular buffers of preallocated peers, connections and calls
+ * for incoming service calls and their head and tail pointers. This allows
+ * calls to be set up in the data_ready handler, thereby avoiding the need to
+ * shuffle packets around so much.
+ */
+struct rxrpc_backlog {
+ unsigned short peer_backlog_head;
+ unsigned short peer_backlog_tail;
+ unsigned short conn_backlog_head;
+ unsigned short conn_backlog_tail;
+ unsigned short call_backlog_head;
+ unsigned short call_backlog_tail;
+#define RXRPC_BACKLOG_MAX 32
+ struct rxrpc_peer *peer_backlog[RXRPC_BACKLOG_MAX];
+ struct rxrpc_connection *conn_backlog[RXRPC_BACKLOG_MAX];
+ struct rxrpc_call *call_backlog[RXRPC_BACKLOG_MAX];
+};
+
/*
* RxRPC socket definition
*/
struct rxrpc_sock {
/* WARNING: sk has to be the first member */
struct sock sk;
- rxrpc_interceptor_t interceptor; /* kernel service Rx interceptor function */
+ rxrpc_notify_new_call_t notify_new_call; /* Func to notify of new call */
+ rxrpc_discard_new_call_t discard_new_call; /* Func to discard a new call */
struct rxrpc_local *local; /* local endpoint */
- struct list_head listen_link; /* link in the local endpoint's listen list */
- struct list_head secureq; /* calls awaiting connection security clearance */
- struct list_head acceptq; /* calls awaiting acceptance */
+ struct rxrpc_backlog *backlog; /* Preallocation for services */
+ spinlock_t incoming_lock; /* Incoming call vs service shutdown lock */
+ struct list_head sock_calls; /* List of calls owned by this socket */
+ struct list_head to_be_accepted; /* calls awaiting acceptance */
+ struct list_head recvmsg_q; /* Calls awaiting recvmsg's attention */
+ rwlock_t recvmsg_lock; /* Lock for recvmsg_q */
struct key *key; /* security for this socket */
struct key *securities; /* list of server security descriptors */
- struct rb_root calls; /* outstanding calls on this socket */
+ struct rb_root calls; /* User ID -> call mapping */
unsigned long flags;
#define RXRPC_SOCK_CONNECTED 0 /* connect_srx is set */
rwlock_t call_lock; /* lock for calls */
* - max 48 bytes (struct sk_buff::cb)
*/
struct rxrpc_skb_priv {
- struct rxrpc_call *call; /* call with which associated */
- unsigned long resend_at; /* time in jiffies at which to resend */
union {
- unsigned int offset; /* offset into buffer of next read */
+ u8 nr_jumbo; /* Number of jumbo subpackets */
+ };
+ union {
int remain; /* amount of space remaining for next write */
- u32 error; /* network error code */
- bool need_resend; /* T if needs resending */
};
struct rxrpc_host_header hdr; /* RxRPC packet header from this packet */
#define rxrpc_skb(__skb) ((struct rxrpc_skb_priv *) &(__skb)->cb)
-enum rxrpc_command {
- RXRPC_CMD_SEND_DATA, /* send data message */
- RXRPC_CMD_SEND_ABORT, /* request abort generation */
- RXRPC_CMD_ACCEPT, /* [server] accept incoming call */
- RXRPC_CMD_REJECT_BUSY, /* [server] reject a call as busy */
-};
-
/*
* RxRPC security module interface
*/
void *);
/* verify the security on a received packet */
- int (*verify_packet)(struct rxrpc_call *, struct sk_buff *, u32 *);
+ int (*verify_packet)(struct rxrpc_call *, struct sk_buff *,
+ unsigned int, unsigned int, rxrpc_seq_t, u16);
+
+ /* Locate the data in a received packet that has been verified. */
+ void (*locate_data)(struct rxrpc_call *, struct sk_buff *,
+ unsigned int *, unsigned int *);
/* issue a challenge */
int (*issue_challenge)(struct rxrpc_connection *);
struct list_head link;
struct socket *socket; /* my UDP socket */
struct work_struct processor;
- struct list_head services; /* services listening on this endpoint */
+ struct rxrpc_sock __rcu *service; /* Service(s) listening on this endpoint */
struct rw_semaphore defrag_sem; /* control re-enablement of IP DF bit */
- struct sk_buff_head accept_queue; /* incoming calls awaiting acceptance */
struct sk_buff_head reject_queue; /* packets awaiting rejection */
struct sk_buff_head event_queue; /* endpoint event packets awaiting processing */
struct rb_root client_conns; /* Client connections by socket params */
/* 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 */
+ ktime_t rtt_last_req; /* Time of last RTT request */
+ 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_HAS_IDR, /* Has a client conn ID assigned */
RXRPC_CONN_IN_SERVICE_CONNS, /* Conn is in peer->service_conns */
RXRPC_CONN_IN_CLIENT_CONNS, /* Conn is in local->client_conns */
+ RXRPC_CONN_EXPOSED, /* Conn has extra ref for exposure */
+ RXRPC_CONN_DONT_REUSE, /* Don't reuse this connection */
+ RXRPC_CONN_COUNTED, /* Counted by rxrpc_nr_client_conns */
};
/*
RXRPC_CONN_EV_CHALLENGE, /* Send challenge packet */
};
+/*
+ * The connection cache state.
+ */
+enum rxrpc_conn_cache_state {
+ RXRPC_CONN_CLIENT_INACTIVE, /* Conn is not yet listed */
+ RXRPC_CONN_CLIENT_WAITING, /* Conn is on wait list, waiting for capacity */
+ 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
+};
+
/*
* The connection protocol state.
*/
enum rxrpc_conn_proto_state {
RXRPC_CONN_UNUSED, /* Connection not yet attempted */
RXRPC_CONN_CLIENT, /* Client connection */
+ RXRPC_CONN_SERVICE_PREALLOC, /* Service connection preallocation */
RXRPC_CONN_SERVICE_UNSECURED, /* Service unsecured connection */
RXRPC_CONN_SERVICE_CHALLENGING, /* Service challenging for security */
RXRPC_CONN_SERVICE, /* Service secured connection */
RXRPC_CONN_REMOTELY_ABORTED, /* Conn aborted by peer */
RXRPC_CONN_LOCALLY_ABORTED, /* Conn aborted locally */
- RXRPC_CONN_NETWORK_ERROR, /* Conn terminated by network error */
RXRPC_CONN__NR_STATES
};
struct rxrpc_conn_proto proto;
struct rxrpc_conn_parameters params;
- spinlock_t channel_lock;
+ atomic_t usage;
+ struct rcu_head rcu;
+ struct list_head cache_link;
+ spinlock_t channel_lock;
+ unsigned char active_chans; /* Mask of active channels */
+#define RXRPC_ACTIVE_CHANS_MASK ((1 << RXRPC_MAXCALLS) - 1)
+ struct list_head waiting_calls; /* Calls waiting for channels */
struct rxrpc_channel {
struct rxrpc_call __rcu *call; /* Active call */
u32 call_id; /* ID of current call */
u32 call_counter; /* Call ID counter */
u32 last_call; /* ID of last call */
- u32 last_result; /* Result of last call (0/abort) */
+ u8 last_type; /* Type of last packet */
+ u16 last_service_id;
+ union {
+ u32 last_seq;
+ u32 last_abort;
+ };
} channels[RXRPC_MAXCALLS];
- wait_queue_head_t channel_wq; /* queue to wait for channel to become available */
- struct rcu_head rcu;
struct work_struct processor; /* connection event processor */
union {
struct rb_node client_node; /* Node in local->client_conns */
struct rb_node service_node; /* Node in peer->service_conns */
};
+ struct list_head proc_link; /* link in procfs list */
struct list_head link; /* link in master connection list */
struct sk_buff_head rx_queue; /* received conn-level packets */
const struct rxrpc_security *security; /* applied security module */
struct rxrpc_crypt csum_iv; /* packet checksum base */
unsigned long flags;
unsigned long events;
- unsigned long put_time; /* Time at which last put */
+ unsigned long idle_timestamp; /* Time at which last became idle */
spinlock_t state_lock; /* state-change lock */
- atomic_t usage;
- enum rxrpc_conn_proto_state state : 8; /* current state of connection */
+ enum rxrpc_conn_cache_state cache_state;
+ enum rxrpc_conn_proto_state state; /* current state of connection */
u32 local_abort; /* local abort code */
u32 remote_abort; /* remote abort code */
- int error; /* local error incurred */
int debug_id; /* debug ID for printks */
atomic_t serial; /* packet serial number counter */
- atomic_t hi_serial; /* highest serial number received */
- atomic_t avail_chans; /* number of channels available */
+ 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 */
};
*/
enum rxrpc_call_flag {
RXRPC_CALL_RELEASED, /* call has been released - no more message to userspace */
- RXRPC_CALL_TERMINAL_MSG, /* call has given the socket its final message */
- RXRPC_CALL_RCVD_LAST, /* all packets received */
- RXRPC_CALL_RUN_RTIMER, /* Tx resend timer started */
- RXRPC_CALL_TX_SOFT_ACK, /* sent some soft ACKs */
- RXRPC_CALL_PROC_BUSY, /* the processor is busy */
- RXRPC_CALL_INIT_ACCEPT, /* acceptance was initiated */
RXRPC_CALL_HAS_USERID, /* has a user ID attached */
- RXRPC_CALL_EXPECT_OOS, /* expect out of sequence packets */
+ RXRPC_CALL_IS_SERVICE, /* Call is service call */
+ RXRPC_CALL_EXPOSED, /* The call was exposed to the world */
+ RXRPC_CALL_RX_LAST, /* Received the last packet (at rxtx_top) */
+ RXRPC_CALL_TX_LAST, /* Last packet in Tx buffer (at rxtx_top) */
+ RXRPC_CALL_SEND_PING, /* A ping will need to be sent */
+ RXRPC_CALL_PINGING, /* Ping in process */
+ RXRPC_CALL_RETRANS_TIMEOUT, /* Retransmission due to timeout occurred */
};
/*
* Events that can be raised on a call.
*/
enum rxrpc_call_event {
- RXRPC_CALL_EV_RCVD_ACKALL, /* ACKALL or reply received */
- RXRPC_CALL_EV_RCVD_BUSY, /* busy packet received */
- RXRPC_CALL_EV_RCVD_ABORT, /* abort packet received */
- RXRPC_CALL_EV_RCVD_ERROR, /* network error received */
- RXRPC_CALL_EV_ACK_FINAL, /* need to generate final ACK (and release call) */
RXRPC_CALL_EV_ACK, /* need to generate ACK */
- RXRPC_CALL_EV_REJECT_BUSY, /* need to generate busy message */
RXRPC_CALL_EV_ABORT, /* need to generate abort */
- RXRPC_CALL_EV_CONN_ABORT, /* local connection abort generated */
- RXRPC_CALL_EV_RESEND_TIMER, /* Tx resend timer expired */
+ RXRPC_CALL_EV_TIMER, /* Timer expired */
RXRPC_CALL_EV_RESEND, /* Tx resend required */
- RXRPC_CALL_EV_DRAIN_RX_OOS, /* drain the Rx out of sequence queue */
- RXRPC_CALL_EV_LIFE_TIMER, /* call's lifetimer ran out */
- RXRPC_CALL_EV_ACCEPTED, /* incoming call accepted by userspace app */
- RXRPC_CALL_EV_SECURED, /* incoming call's connection is now secure */
- RXRPC_CALL_EV_POST_ACCEPT, /* need to post an "accept?" message to the app */
- RXRPC_CALL_EV_RELEASE, /* need to release the call's resources */
+ RXRPC_CALL_EV_PING, /* Ping send required */
};
/*
RXRPC_CALL_CLIENT_SEND_REQUEST, /* - client sending request phase */
RXRPC_CALL_CLIENT_AWAIT_REPLY, /* - client awaiting reply */
RXRPC_CALL_CLIENT_RECV_REPLY, /* - client receiving reply phase */
- RXRPC_CALL_CLIENT_FINAL_ACK, /* - client sending final ACK phase */
+ RXRPC_CALL_SERVER_PREALLOC, /* - service preallocation */
RXRPC_CALL_SERVER_SECURING, /* - server securing request connection */
RXRPC_CALL_SERVER_ACCEPTING, /* - server accepting request */
RXRPC_CALL_SERVER_RECV_REQUEST, /* - server receiving request */
RXRPC_CALL_SERVER_ACK_REQUEST, /* - server pending ACK of request */
RXRPC_CALL_SERVER_SEND_REPLY, /* - server sending reply */
RXRPC_CALL_SERVER_AWAIT_ACK, /* - server awaiting final ACK */
- RXRPC_CALL_COMPLETE, /* - call completed */
- RXRPC_CALL_SERVER_BUSY, /* - call rejected by busy server */
+ RXRPC_CALL_COMPLETE, /* - call complete */
+ NR__RXRPC_CALL_STATES
+};
+
+/*
+ * Call completion condition (state == RXRPC_CALL_COMPLETE).
+ */
+enum rxrpc_call_completion {
+ RXRPC_CALL_SUCCEEDED, /* - Normal termination */
RXRPC_CALL_REMOTELY_ABORTED, /* - call aborted by peer */
RXRPC_CALL_LOCALLY_ABORTED, /* - call aborted locally on error or close */
+ RXRPC_CALL_LOCAL_ERROR, /* - call failed due to local error */
RXRPC_CALL_NETWORK_ERROR, /* - call terminated by network error */
- RXRPC_CALL_DEAD, /* - call is dead */
- NR__RXRPC_CALL_STATES
+ NR__RXRPC_CALL_COMPLETIONS
+};
+
+/*
+ * Call Tx congestion management modes.
+ */
+enum rxrpc_congest_mode {
+ RXRPC_CALL_SLOW_START,
+ RXRPC_CALL_CONGEST_AVOIDANCE,
+ RXRPC_CALL_PACKET_LOSS,
+ RXRPC_CALL_FAST_RETRANSMIT,
+ NR__RXRPC_CONGEST_MODES
};
/*
struct rxrpc_call {
struct rcu_head rcu;
struct rxrpc_connection *conn; /* connection carrying call */
- struct rxrpc_sock *socket; /* socket responsible */
- struct timer_list lifetimer; /* lifetime remaining on call */
- struct timer_list deadspan; /* reap timer for re-ACK'ing, etc */
- struct timer_list ack_timer; /* ACK generation timer */
- struct timer_list resend_timer; /* Tx resend timer */
- struct work_struct destroyer; /* call destroyer */
- struct work_struct processor; /* packet processor and ACK generator */
+ struct rxrpc_peer *peer; /* Peer record for remote address */
+ struct rxrpc_sock __rcu *socket; /* socket responsible */
+ ktime_t ack_at; /* When deferred ACK needs to happen */
+ ktime_t resend_at; /* When next resend needs to happen */
+ ktime_t ping_at; /* When next to send a ping */
+ ktime_t expire_at; /* When the call times out */
+ struct timer_list timer; /* Combined event timer */
+ struct work_struct processor; /* Event processor */
+ rxrpc_notify_rx_t notify_rx; /* kernel service Rx notification function */
struct list_head link; /* link in master call list */
+ struct list_head chan_wait_link; /* Link in conn->waiting_calls */
struct hlist_node error_link; /* link in error distribution list */
- struct list_head accept_link; /* calls awaiting acceptance */
- struct rb_node sock_node; /* node in socket call tree */
- struct sk_buff_head rx_queue; /* received packets */
- struct sk_buff_head rx_oos_queue; /* packets received out of sequence */
+ struct list_head accept_link; /* Link in rx->acceptq */
+ struct list_head recvmsg_link; /* Link in rx->recvmsg_q */
+ struct list_head sock_link; /* Link in rx->sock_calls */
+ struct rb_node sock_node; /* Node in rx->calls */
struct sk_buff *tx_pending; /* Tx socket buffer being filled */
- wait_queue_head_t tx_waitq; /* wait for Tx window space to become available */
+ wait_queue_head_t waitq; /* Wait queue for channel or Tx */
__be32 crypto_buf[2]; /* Temporary packet crypto buffer */
unsigned long user_call_ID; /* user-defined call ID */
- unsigned long creation_jif; /* time of call creation */
unsigned long flags;
unsigned long events;
spinlock_t lock;
rwlock_t state_lock; /* lock for state transition */
- atomic_t usage;
- atomic_t skb_count; /* Outstanding packets on this call */
- atomic_t sequence; /* Tx data packet sequence counter */
- u32 local_abort; /* local abort code */
- u32 remote_abort; /* remote abort code */
- int error_report; /* Network error (ICMP/local transport) */
+ u32 abort_code; /* Local/remote abort code */
int error; /* Local error incurred */
- enum rxrpc_call_state state : 8; /* current state of call */
+ enum rxrpc_call_state state; /* current state of call */
+ enum rxrpc_call_completion completion; /* Call completion condition */
+ atomic_t usage;
+ u16 service_id; /* service ID */
+ u8 security_ix; /* Security type */
+ u32 call_id; /* call ID on connection */
+ u32 cid; /* connection ID plus channel index */
int debug_id; /* debug ID for printks */
- u8 channel; /* connection channel occupied by this call */
-
- /* transmission-phase ACK management */
- u8 acks_head; /* offset into window of first entry */
- u8 acks_tail; /* offset into window of last entry */
- u8 acks_winsz; /* size of un-ACK'd window */
- u8 acks_unacked; /* lowest unacked packet in last ACK received */
- int acks_latest; /* serial number of latest ACK received */
- rxrpc_seq_t acks_hard; /* highest definitively ACK'd msg seq */
- unsigned long *acks_window; /* sent packet window
- * - elements are pointers with LSB set if ACK'd
+ unsigned short rx_pkt_offset; /* Current recvmsg packet offset */
+ unsigned short rx_pkt_len; /* Current recvmsg packet len */
+
+ /* Rx/Tx circular buffer, depending on phase.
+ *
+ * In the Rx phase, packets are annotated with 0 or the number of the
+ * segment of a jumbo packet each buffer refers to. There can be up to
+ * 47 segments in a maximum-size UDP packet.
+ *
+ * In the Tx phase, packets are annotated with which buffers have been
+ * acked.
+ */
+#define RXRPC_RXTX_BUFF_SIZE 64
+#define RXRPC_RXTX_BUFF_MASK (RXRPC_RXTX_BUFF_SIZE - 1)
+#define RXRPC_INIT_RX_WINDOW_SIZE 32
+ struct sk_buff **rxtx_buffer;
+ u8 *rxtx_annotations;
+#define RXRPC_TX_ANNO_ACK 0
+#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_LAST 0x04
+#define RXRPC_TX_ANNO_RESENT 0x08
+
+#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 tx_hard_ack; /* Dead slot in buffer; the first transmitted but
+ * not hard-ACK'd packet follows this.
+ */
+ rxrpc_seq_t tx_top; /* Highest Tx slot allocated. */
+
+ /* TCP-style slow-start congestion control [RFC5681]. Since the SMSS
+ * is fixed, we keep these numbers in terms of segments (ie. DATA
+ * packets) rather than bytes.
+ */
+#define RXRPC_TX_SMSS RXRPC_JUMBO_DATALEN
+ u8 cong_cwnd; /* Congestion window size */
+ u8 cong_extra; /* Extra to send for congestion management */
+ u8 cong_ssthresh; /* Slow-start threshold */
+ enum rxrpc_congest_mode cong_mode:8; /* Congestion management mode */
+ u8 cong_dup_acks; /* Count of ACKs showing missing packets */
+ u8 cong_cumul_acks; /* Cumulative ACK count */
+ ktime_t cong_tstamp; /* Last time cwnd was changed */
+
+ rxrpc_seq_t rx_hard_ack; /* Dead slot in buffer; the first received but not
+ * consumed packet follows this.
*/
+ rxrpc_seq_t rx_top; /* Highest Rx slot allocated. */
+ 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_seq_t rx_data_expect; /* next data seq ID expected to be received */
- rxrpc_seq_t rx_data_post; /* next data seq ID expected to be posted */
- rxrpc_seq_t rx_data_recv; /* last data seq ID encountered by recvmsg */
- rxrpc_seq_t rx_data_eaten; /* last data seq ID consumed by recvmsg */
- rxrpc_seq_t rx_first_oos; /* first packet in rx_oos_queue (or 0) */
- rxrpc_seq_t ackr_win_top; /* top of ACK window (rx_data_eaten is bottom) */
- rxrpc_seq_t ackr_prev_seq; /* previous sequence number received */
u8 ackr_reason; /* reason to ACK */
+ u16 ackr_skew; /* skew on packet being ACK'd */
rxrpc_serial_t ackr_serial; /* serial of packet being ACK'd */
- atomic_t ackr_not_idle; /* number of packets in Rx queue */
+ rxrpc_seq_t ackr_prev_seq; /* previous sequence number received */
+ rxrpc_seq_t ackr_consumed; /* Highest packet shown consumed */
+ rxrpc_seq_t ackr_seen; /* Highest packet shown seen */
- /* received packet records, 1 bit per record */
-#define RXRPC_ACKR_WINDOW_ASZ DIV_ROUND_UP(RXRPC_MAXACKS, BITS_PER_LONG)
- unsigned long ackr_window[RXRPC_ACKR_WINDOW_ASZ + 1];
+ /* ping management */
+ rxrpc_serial_t ping_serial; /* Last ping sent */
+ ktime_t ping_time; /* Time last ping sent */
- u8 in_clientflag; /* Copy of conn->in_clientflag */
- struct rxrpc_local *local; /* Local endpoint. */
- u32 call_id; /* call ID on connection */
- u32 cid; /* connection ID plus channel index */
- u32 epoch; /* epoch of this connection */
- u16 service_id; /* service ID */
+ /* transmission-phase ACK management */
+ ktime_t acks_latest_ts; /* Timestamp of latest ACK received */
+ rxrpc_serial_t acks_latest; /* serial number of latest ACK received */
+ rxrpc_seq_t acks_lowest_nak; /* Lowest NACK in the buffer (or ==tx_hard_ack) */
};
/*
- * locally abort an RxRPC call
+ * Summary of a new ACK and the changes it made to the Tx buffer packet states.
*/
-static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code)
-{
- write_lock_bh(&call->state_lock);
- if (call->state < RXRPC_CALL_COMPLETE) {
- call->local_abort = abort_code;
- call->state = RXRPC_CALL_LOCALLY_ABORTED;
- set_bit(RXRPC_CALL_EV_ABORT, &call->events);
- }
- write_unlock_bh(&call->state_lock);
-}
+struct rxrpc_ack_summary {
+ u8 ack_reason;
+ u8 nr_acks; /* Number of ACKs in packet */
+ u8 nr_nacks; /* Number of NACKs in packet */
+ u8 nr_new_acks; /* Number of new ACKs in packet */
+ u8 nr_new_nacks; /* Number of new NACKs in packet */
+ u8 nr_rot_new_acks; /* Number of rotated new ACKs */
+ bool new_low_nack; /* T if new low NACK found */
+ bool retrans_timeo; /* T if reTx due to timeout happened */
+ u8 flight_size; /* Number of unreceived transmissions */
+ /* Place to stash values for tracing */
+ enum rxrpc_congest_mode mode:8;
+ u8 cwnd;
+ u8 ssthresh;
+ u8 dup_acks;
+ u8 cumulative_acks;
+};
+
+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_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,
+ 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_last,
+ rxrpc_transmit_rotate,
+ rxrpc_transmit_rotate_last,
+ rxrpc_transmit_await_reply,
+ 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_data,
+ 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_requested_ack,
+ rxrpc_rtt_rx__nr_trace
+};
+
+extern const char rxrpc_rtt_rx_traces[rxrpc_rtt_rx__nr_trace][5];
+
+enum rxrpc_timer_trace {
+ rxrpc_timer_begin,
+ rxrpc_timer_init_for_reply,
+ rxrpc_timer_init_for_send_reply,
+ rxrpc_timer_expired,
+ rxrpc_timer_set_for_ack,
+ rxrpc_timer_set_for_ping,
+ rxrpc_timer_set_for_resend,
+ rxrpc_timer_set_for_send,
+ rxrpc_timer__nr_trace
+};
+
+extern const char rxrpc_timer_traces[rxrpc_timer__nr_trace][8];
+
+enum rxrpc_propose_ack_trace {
+ rxrpc_propose_ack_client_tx_end,
+ rxrpc_propose_ack_input_data,
+ rxrpc_propose_ack_ping_for_lost_ack,
+ rxrpc_propose_ack_ping_for_lost_reply,
+ rxrpc_propose_ack_ping_for_params,
+ rxrpc_propose_ack_processing_op,
+ rxrpc_propose_ack_respond_to_ack,
+ rxrpc_propose_ack_respond_to_ping,
+ rxrpc_propose_ack_retry_tx,
+ rxrpc_propose_ack_rotate_rx,
+ rxrpc_propose_ack_terminal_ack,
+ rxrpc_propose_ack__nr_trace
+};
+
+enum rxrpc_propose_ack_outcome {
+ rxrpc_propose_ack_use,
+ rxrpc_propose_ack_update,
+ rxrpc_propose_ack_subsume,
+ rxrpc_propose_ack__nr_outcomes
+};
+
+extern const char rxrpc_propose_ack_traces[rxrpc_propose_ack__nr_trace][8];
+extern const char *const rxrpc_propose_ack_outcomes[rxrpc_propose_ack__nr_outcomes];
+
+enum rxrpc_congest_change {
+ rxrpc_cong_begin_retransmission,
+ rxrpc_cong_cleared_nacks,
+ rxrpc_cong_new_low_nack,
+ rxrpc_cong_no_change,
+ rxrpc_cong_progress,
+ rxrpc_cong_retransmit_again,
+ rxrpc_cong_rtt_window_end,
+ rxrpc_cong_saw_nack,
+ rxrpc_congest__nr_change
+};
+
+extern const char rxrpc_congest_modes[NR__RXRPC_CONGEST_MODES][10];
+extern const char rxrpc_congest_changes[rxrpc_congest__nr_change][9];
+
+extern const char *const rxrpc_pkts[];
+extern const char rxrpc_ack_names[RXRPC_ACK__INVALID + 1][4];
+
+#include <trace/events/rxrpc.h>
/*
* 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;
/*
* call_accept.c
*/
+int rxrpc_service_prealloc(struct rxrpc_sock *, gfp_t);
+void rxrpc_discard_prealloc(struct rxrpc_sock *);
+struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *,
+ struct rxrpc_connection *,
+ struct sk_buff *);
void rxrpc_accept_incoming_calls(struct rxrpc_local *);
-struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *, unsigned long);
+struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *, unsigned long,
+ rxrpc_notify_rx_t);
int rxrpc_reject_call(struct rxrpc_sock *);
/*
* call_event.c
*/
-void __rxrpc_propose_ACK(struct rxrpc_call *, u8, u32, bool);
-void rxrpc_propose_ACK(struct rxrpc_call *, u8, u32, bool);
+void __rxrpc_set_timer(struct rxrpc_call *, enum rxrpc_timer_trace, ktime_t);
+void rxrpc_set_timer(struct rxrpc_call *, enum rxrpc_timer_trace, ktime_t);
+void rxrpc_propose_ACK(struct rxrpc_call *, u8, u16, u32, bool, bool,
+ enum rxrpc_propose_ack_trace);
void rxrpc_process_call(struct work_struct *);
/*
* call_object.c
*/
+extern const char *const rxrpc_call_states[];
+extern const char *const rxrpc_call_completions[];
extern unsigned int rxrpc_max_call_lifetime;
-extern unsigned int rxrpc_dead_call_expiry;
extern struct kmem_cache *rxrpc_call_jar;
extern struct list_head rxrpc_calls;
extern rwlock_t rxrpc_call_lock;
struct rxrpc_call *rxrpc_find_call_by_user_ID(struct rxrpc_sock *, unsigned long);
+struct rxrpc_call *rxrpc_alloc_call(gfp_t);
struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *,
struct rxrpc_conn_parameters *,
struct sockaddr_rxrpc *,
unsigned long, gfp_t);
-struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *,
- struct rxrpc_connection *,
- struct sk_buff *);
-void rxrpc_release_call(struct rxrpc_call *);
+void rxrpc_incoming_call(struct rxrpc_sock *, struct rxrpc_call *,
+ struct sk_buff *);
+void rxrpc_release_call(struct rxrpc_sock *, struct rxrpc_call *);
void rxrpc_release_calls_on_socket(struct rxrpc_sock *);
-void __rxrpc_put_call(struct rxrpc_call *);
+bool __rxrpc_queue_call(struct rxrpc_call *);
+bool rxrpc_queue_call(struct rxrpc_call *);
+void rxrpc_see_call(struct rxrpc_call *);
+void rxrpc_get_call(struct rxrpc_call *, enum rxrpc_call_trace);
+void rxrpc_put_call(struct rxrpc_call *, enum rxrpc_call_trace);
+void rxrpc_cleanup_call(struct rxrpc_call *);
void __exit rxrpc_destroy_all_calls(void);
+static inline bool rxrpc_is_service_call(const struct rxrpc_call *call)
+{
+ return test_bit(RXRPC_CALL_IS_SERVICE, &call->flags);
+}
+
+static inline bool rxrpc_is_client_call(const struct rxrpc_call *call)
+{
+ return !rxrpc_is_service_call(call);
+}
+
+/*
+ * Transition a call to the complete state.
+ */
+static inline bool __rxrpc_set_call_completion(struct rxrpc_call *call,
+ enum rxrpc_call_completion compl,
+ u32 abort_code,
+ int error)
+{
+ if (call->state < RXRPC_CALL_COMPLETE) {
+ call->abort_code = abort_code;
+ call->error = error;
+ call->completion = compl,
+ call->state = RXRPC_CALL_COMPLETE;
+ wake_up(&call->waitq);
+ return true;
+ }
+ return false;
+}
+
+static inline bool rxrpc_set_call_completion(struct rxrpc_call *call,
+ enum rxrpc_call_completion compl,
+ u32 abort_code,
+ int error)
+{
+ bool ret;
+
+ write_lock_bh(&call->state_lock);
+ ret = __rxrpc_set_call_completion(call, compl, abort_code, error);
+ write_unlock_bh(&call->state_lock);
+ return ret;
+}
+
+/*
+ * Record that a call successfully completed.
+ */
+static inline bool __rxrpc_call_completed(struct rxrpc_call *call)
+{
+ return __rxrpc_set_call_completion(call, RXRPC_CALL_SUCCEEDED, 0, 0);
+}
+
+static inline bool rxrpc_call_completed(struct rxrpc_call *call)
+{
+ bool ret;
+
+ write_lock_bh(&call->state_lock);
+ ret = __rxrpc_call_completed(call);
+ write_unlock_bh(&call->state_lock);
+ return ret;
+}
+
+/*
+ * Record that a call is locally aborted.
+ */
+static inline bool __rxrpc_abort_call(const char *why, struct rxrpc_call *call,
+ rxrpc_seq_t seq,
+ u32 abort_code, int error)
+{
+ trace_rxrpc_abort(why, call->cid, call->call_id, seq,
+ abort_code, error);
+ return __rxrpc_set_call_completion(call, RXRPC_CALL_LOCALLY_ABORTED,
+ abort_code, error);
+}
+
+static inline bool rxrpc_abort_call(const char *why, struct rxrpc_call *call,
+ rxrpc_seq_t seq, u32 abort_code, int error)
+{
+ bool ret;
+
+ write_lock_bh(&call->state_lock);
+ ret = __rxrpc_abort_call(why, call, seq, abort_code, error);
+ write_unlock_bh(&call->state_lock);
+ return ret;
+}
+
/*
* conn_client.c
*/
+extern unsigned int rxrpc_max_client_connections;
+extern unsigned int rxrpc_reap_client_connections;
+extern unsigned int rxrpc_conn_idle_client_expiry;
+extern unsigned int rxrpc_conn_idle_client_fast_expiry;
extern struct idr rxrpc_client_conn_ids;
void rxrpc_destroy_client_conn_ids(void);
int rxrpc_connect_call(struct rxrpc_call *, struct rxrpc_conn_parameters *,
struct sockaddr_rxrpc *, gfp_t);
-void rxrpc_unpublish_client_conn(struct rxrpc_connection *);
+void rxrpc_expose_client_call(struct rxrpc_call *);
+void rxrpc_disconnect_client_call(struct rxrpc_call *);
+void rxrpc_put_client_conn(struct rxrpc_connection *);
+void __exit rxrpc_destroy_all_client_connections(void);
/*
* conn_event.c
*/
void rxrpc_process_connection(struct work_struct *);
-void rxrpc_reject_packet(struct rxrpc_local *, struct sk_buff *);
-void rxrpc_reject_packets(struct rxrpc_local *);
/*
* conn_object.c
*/
extern unsigned int rxrpc_connection_expiry;
extern struct list_head rxrpc_connections;
+extern struct list_head rxrpc_connection_proc_list;
extern rwlock_t rxrpc_connection_lock;
int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *, struct sk_buff *);
struct rxrpc_connection *rxrpc_alloc_connection(gfp_t);
struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *,
struct sk_buff *);
-void __rxrpc_disconnect_call(struct rxrpc_call *);
+void __rxrpc_disconnect_call(struct rxrpc_connection *, struct rxrpc_call *);
void rxrpc_disconnect_call(struct rxrpc_call *);
-void rxrpc_put_connection(struct rxrpc_connection *);
+void rxrpc_kill_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)
+static inline void rxrpc_put_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;
-}
+ if (!conn)
+ return;
-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);
}
/*
*/
struct rxrpc_connection *rxrpc_find_service_conn_rcu(struct rxrpc_peer *,
struct sk_buff *);
-struct rxrpc_connection *rxrpc_incoming_connection(struct rxrpc_local *,
- struct sockaddr_rxrpc *,
- struct sk_buff *);
+struct rxrpc_connection *rxrpc_prealloc_service_connection(gfp_t);
+void rxrpc_new_incoming_connection(struct rxrpc_connection *, struct sk_buff *);
void rxrpc_unpublish_service_conn(struct rxrpc_connection *);
/*
* input.c
*/
void rxrpc_data_ready(struct sock *);
-int rxrpc_queue_rcv_skb(struct rxrpc_call *, struct sk_buff *, bool, bool);
-void rxrpc_fast_process_packet(struct rxrpc_call *, struct sk_buff *);
/*
* insecure.c
extern unsigned int rxrpc_rx_window_size;
extern unsigned int rxrpc_rx_mtu;
extern unsigned int rxrpc_rx_jumbo_max;
+extern unsigned int rxrpc_resend_timeout;
-extern const char *const rxrpc_pkts[];
extern const s8 rxrpc_ack_priority[];
-extern const char *rxrpc_acks(u8 reason);
-
/*
* output.c
*/
-extern unsigned int rxrpc_resend_timeout;
-
-int rxrpc_send_data_packet(struct rxrpc_connection *, struct sk_buff *);
-int rxrpc_do_sendmsg(struct rxrpc_sock *, struct msghdr *, size_t);
+int rxrpc_send_ack_packet(struct rxrpc_call *, bool);
+int rxrpc_send_abort_packet(struct rxrpc_call *);
+int rxrpc_send_data_packet(struct rxrpc_call *, struct sk_buff *, bool);
+void rxrpc_reject_packets(struct rxrpc_local *);
/*
* peer_event.c
*/
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
struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *,
struct sockaddr_rxrpc *, gfp_t);
struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t);
+struct rxrpc_peer *rxrpc_lookup_incoming_peer(struct rxrpc_local *,
+ struct rxrpc_peer *);
-static inline void rxrpc_get_peer(struct rxrpc_peer *peer)
+static inline struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *peer)
{
atomic_inc(&peer->usage);
+ return peer;
}
static inline
/*
* proc.c
*/
-extern const char *const rxrpc_call_states[];
extern const struct file_operations rxrpc_call_seq_fops;
extern const struct file_operations rxrpc_connection_seq_fops;
/*
* recvmsg.c
*/
-void rxrpc_remove_user_ID(struct rxrpc_sock *, struct rxrpc_call *);
+void rxrpc_notify_socket(struct rxrpc_call *);
int rxrpc_recvmsg(struct socket *, struct msghdr *, size_t, int);
/*
int rxrpc_init_client_conn_security(struct rxrpc_connection *);
int rxrpc_init_server_conn_security(struct rxrpc_connection *);
+/*
+ * sendmsg.c
+ */
+int rxrpc_do_sendmsg(struct rxrpc_sock *, struct msghdr *, size_t);
+
/*
* skbuff.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 *, 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 *);
/*
* sysctl.c
*/
int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *, struct sk_buff *);
+static inline bool before(u32 seq1, u32 seq2)
+{
+ return (s32)(seq1 - seq2) < 0;
+}
+static inline bool before_eq(u32 seq1, u32 seq2)
+{
+ return (s32)(seq1 - seq2) <= 0;
+}
+static inline bool after(u32 seq1, u32 seq2)
+{
+ return (s32)(seq1 - seq2) > 0;
+}
+static inline bool after_eq(u32 seq1, u32 seq2)
+{
+ return (s32)(seq1 - seq2) >= 0;
+}
+
/*
* debug tracing
*/
#define ASSERTCMP(X, OP, Y) \
do { \
- unsigned long _x = (unsigned long)(X); \
- unsigned long _y = (unsigned long)(Y); \
+ __typeof__(X) _x = (X); \
+ __typeof__(Y) _y = (__typeof__(X))(Y); \
if (unlikely(!(_x OP _y))) { \
- pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \
- _x, _x, #OP, _y, _y); \
+ pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \
+ (unsigned long)_x, (unsigned long)_x, #OP, \
+ (unsigned long)_y, (unsigned long)_y); \
BUG(); \
} \
} while (0)
#define ASSERTIFCMP(C, X, OP, Y) \
do { \
- unsigned long _x = (unsigned long)(X); \
- unsigned long _y = (unsigned long)(Y); \
+ __typeof__(X) _x = (X); \
+ __typeof__(Y) _y = (__typeof__(X))(Y); \
if (unlikely((C) && !(_x OP _y))) { \
pr_err("Assertion failed - %lu(0x%lx) %s %lu(0x%lx) is false\n", \
- _x, _x, #OP, _y, _y); \
+ (unsigned long)_x, (unsigned long)_x, #OP, \
+ (unsigned long)_y, (unsigned long)_y); \
BUG(); \
} \
} while (0)
} while (0)
#endif /* __KDEBUGALL */
-
-/*
- * socket buffer accounting / leak finding
- */
-static inline void __rxrpc_new_skb(struct sk_buff *skb, const char *fn)
-{
- //_net("new skb %p %s [%d]", skb, fn, atomic_read(&rxrpc_n_skbs));
- //atomic_inc(&rxrpc_n_skbs);
-}
-
-#define rxrpc_new_skb(skb) __rxrpc_new_skb((skb), __func__)
-
-static inline void __rxrpc_kill_skb(struct sk_buff *skb, const char *fn)
-{
- //_net("kill skb %p %s [%d]", skb, fn, atomic_read(&rxrpc_n_skbs));
- //atomic_dec(&rxrpc_n_skbs);
-}
-
-#define rxrpc_kill_skb(skb) __rxrpc_kill_skb((skb), __func__)
-
-static inline void __rxrpc_free_skb(struct sk_buff *skb, const char *fn)
-{
- if (skb) {
- CHECK_SLAB_OKAY(&skb->users);
- //_net("free skb %p %s [%d]",
- // skb, fn, atomic_read(&rxrpc_n_skbs));
- //atomic_dec(&rxrpc_n_skbs);
- kfree_skb(skb);
- }
-}
-
-#define rxrpc_free_skb(skb) __rxrpc_free_skb((skb), __func__)
-
-static inline void rxrpc_purge_queue(struct sk_buff_head *list)
-{
- struct sk_buff *skb;
- while ((skb = skb_dequeue((list))) != NULL)
- rxrpc_free_skb(skb);
-}
-
-#define rxrpc_get_call(CALL) \
-do { \
- CHECK_SLAB_OKAY(&(CALL)->usage); \
- if (atomic_inc_return(&(CALL)->usage) == 1) \
- BUG(); \
-} while (0)
-
-#define rxrpc_put_call(CALL) \
-do { \
- __rxrpc_put_call(CALL); \
-} while (0)
projects / cascardo / linux.git / blobdiff