diff options
Diffstat (limited to 'net/rxrpc/sendmsg.c')
| -rw-r--r-- | net/rxrpc/sendmsg.c | 83 |
1 files changed, 13 insertions, 70 deletions
diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c index 76b1e2e89c1e..11af37275d5b 100644 --- a/net/rxrpc/sendmsg.c +++ b/net/rxrpc/sendmsg.c @@ -22,30 +22,9 @@ */ static bool rxrpc_check_tx_space(struct rxrpc_call *call, rxrpc_seq_t *_tx_win) { - unsigned int win_size; - rxrpc_seq_t tx_win = smp_load_acquire(&call->acks_hard_ack); - - /* If we haven't transmitted anything for >1RTT, we should reset the - * congestion management state. - */ - if (ktime_before(ktime_add_us(call->tx_last_sent, - call->peer->srtt_us >> 3), - ktime_get_real())) { - if (RXRPC_TX_SMSS > 2190) - win_size = 2; - else if (RXRPC_TX_SMSS > 1095) - win_size = 3; - else - win_size = 4; - win_size += call->cong_extra; - } else { - win_size = min_t(unsigned int, call->tx_winsize, - call->cong_cwnd + call->cong_extra); - } - if (_tx_win) - *_tx_win = tx_win; - return call->tx_top - tx_win < win_size; + *_tx_win = call->tx_bottom; + return call->tx_prepared - call->tx_bottom < 256; } /* @@ -66,11 +45,6 @@ static int rxrpc_wait_for_tx_window_intr(struct rxrpc_sock *rx, if (signal_pending(current)) return sock_intr_errno(*timeo); - if (READ_ONCE(call->acks_hard_ack) != call->tx_bottom) { - rxrpc_shrink_call_tx_buffer(call); - continue; - } - trace_rxrpc_txqueue(call, rxrpc_txqueue_wait); *timeo = schedule_timeout(*timeo); } @@ -107,11 +81,6 @@ static int rxrpc_wait_for_tx_window_waitall(struct rxrpc_sock *rx, tx_win == tx_start && signal_pending(current)) return -EINTR; - if (READ_ONCE(call->acks_hard_ack) != call->tx_bottom) { - rxrpc_shrink_call_tx_buffer(call); - continue; - } - if (tx_win != tx_start) { timeout = rtt; tx_start = tx_win; @@ -137,11 +106,6 @@ static int rxrpc_wait_for_tx_window_nonintr(struct rxrpc_sock *rx, if (call->state >= RXRPC_CALL_COMPLETE) return call->error; - if (READ_ONCE(call->acks_hard_ack) != call->tx_bottom) { - rxrpc_shrink_call_tx_buffer(call); - continue; - } - trace_rxrpc_txqueue(call, rxrpc_txqueue_wait); *timeo = schedule_timeout(*timeo); } @@ -207,29 +171,27 @@ static void rxrpc_queue_packet(struct rxrpc_sock *rx, struct rxrpc_call *call, unsigned long now; rxrpc_seq_t seq = txb->seq; bool last = test_bit(RXRPC_TXBUF_LAST, &txb->flags); - int ret; rxrpc_inc_stat(call->rxnet, stat_tx_data); - ASSERTCMP(seq, ==, call->tx_top + 1); + ASSERTCMP(txb->seq, ==, call->tx_prepared + 1); /* We have to set the timestamp before queueing as the retransmit * algorithm can see the packet as soon as we queue it. */ txb->last_sent = ktime_get_real(); - /* Add the packet to the call's output buffer */ - rxrpc_get_txbuf(txb, rxrpc_txbuf_get_buffer); - spin_lock(&call->tx_lock); - list_add_tail(&txb->call_link, &call->tx_buffer); - call->tx_top = seq; - spin_unlock(&call->tx_lock); - if (last) trace_rxrpc_txqueue(call, rxrpc_txqueue_queue_last); else trace_rxrpc_txqueue(call, rxrpc_txqueue_queue); + /* Add the packet to the call's output buffer */ + spin_lock(&call->tx_lock); + list_add_tail(&txb->call_link, &call->tx_sendmsg); + call->tx_prepared = seq; + spin_unlock(&call->tx_lock); + if (last || call->state == RXRPC_CALL_SERVER_ACK_REQUEST) { _debug("________awaiting reply/ACK__________"); write_lock_bh(&call->state_lock); @@ -258,30 +220,11 @@ static void rxrpc_queue_packet(struct rxrpc_sock *rx, struct rxrpc_call *call, write_unlock_bh(&call->state_lock); } - if (seq == 1 && rxrpc_is_client_call(call)) - rxrpc_expose_client_call(call); - - ret = rxrpc_send_data_packet(call, txb); - if (ret < 0) { - switch (ret) { - case -ENETUNREACH: - case -EHOSTUNREACH: - case -ECONNREFUSED: - rxrpc_set_call_completion(call, RXRPC_CALL_LOCAL_ERROR, - 0, ret); - goto out; - } - } else { - unsigned long now = jiffies; - unsigned long resend_at = now + call->peer->rto_j; - WRITE_ONCE(call->resend_at, resend_at); - rxrpc_reduce_call_timer(call, resend_at, now, - rxrpc_timer_set_for_send); - } - -out: - rxrpc_put_txbuf(txb, rxrpc_txbuf_put_trans); + /* Stick the packet on the crypto queue or the transmission queue as + * appropriate. + */ + rxrpc_queue_call(call, rxrpc_call_queue_tx_data); } /* |