diff options
| author | Jochen Friedrich <jochen@scram.de> | 2005-11-14 21:57:15 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-11-14 21:57:15 -0800 |
| commit | 59c6196e59a4b85d9c994e70ff20a460cdbaa003 (patch) | |
| tree | 574e979829d3363c16c8c6d1fe624b206d8ce4f9 | |
| parent | cb422c464bdaeeb3b9ad4539010e357bf1bd1745 (diff) | |
[LLC]: Fix TX window scaling
Signed-off-by: Jochen Friedrich <jochen@scram.de>
Acked-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/llc/llc_c_ac.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c index b0bcfb1f12d..91fb6bc1b11 100644 --- a/net/llc/llc_c_ac.c +++ b/net/llc/llc_c_ac.c @@ -866,7 +866,8 @@ int llc_conn_ac_send_ack_if_needed(struct sock *sk, struct sk_buff *skb) llc->ack_must_be_send = 1; llc->ack_pf = pf_bit & 1; } - if (((llc->vR - llc->first_pdu_Ns + 129) % 128) >= llc->npta) { + if (((llc->vR - llc->first_pdu_Ns + 1 + LLC_2_SEQ_NBR_MODULO) + % LLC_2_SEQ_NBR_MODULO) >= llc->npta) { llc_conn_ac_send_rr_rsp_f_set_ackpf(sk, skb); llc->ack_must_be_send = 0; llc->ack_pf = 0; @@ -994,8 +995,8 @@ static int llc_conn_ac_inc_npta_value(struct sock *sk, struct sk_buff *skb) llc->dec_step = 0; llc->dec_cntr = llc->inc_cntr = 2; ++llc->npta; - if (llc->npta > 127) - llc->npta = 127 ; + if (llc->npta > ~LLC_2_SEQ_NBR_MODULO) + llc->npta = ~LLC_2_SEQ_NBR_MODULO ; } else --llc->inc_cntr; return 0; @@ -1065,9 +1066,10 @@ int llc_conn_ac_dec_tx_win_size(struct sock *sk, struct sk_buff *skb) struct llc_sock *llc = llc_sk(sk); u8 unacked_pdu = skb_queue_len(&llc->pdu_unack_q); - llc->k -= unacked_pdu; - if (llc->k < 2) - llc->k = 2; + if (llc->k - unacked_pdu < 1) + llc->k = 1; + else + llc->k -= unacked_pdu; return 0; } @@ -1084,8 +1086,8 @@ int llc_conn_ac_inc_tx_win_size(struct sock *sk, struct sk_buff *skb) struct llc_sock *llc = llc_sk(sk); llc->k += 1; - if (llc->k > 128) - llc->k = 128 ; + if (llc->k > ~LLC_2_SEQ_NBR_MODULO) + llc->k = ~LLC_2_SEQ_NBR_MODULO ; return 0; } @@ -1309,7 +1311,7 @@ int llc_conn_ac_set_vs_nr(struct sock *sk, struct sk_buff *skb) static int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb) { - llc_sk(sk)->vS = (llc_sk(sk)->vS + 1) % 128; + llc_sk(sk)->vS = (llc_sk(sk)->vS + 1) % LLC_2_SEQ_NBR_MODULO; return 0; } |