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| author | Allan Stephens <allan.stephens@windriver.com> | 2008-06-04 17:47:30 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-06-04 17:47:30 -0700 |
| commit | bd7845337b105e090dd18912d511139945fa7586 (patch) | |
| tree | 2187b514c144ae70e6c36845c50dab2674770bb2 /net/tipc | |
| parent | 307fdf5e7defcacf84db21cda18770b2bf5f5196 (diff) | |
| download | linux-bd7845337b105e090dd18912d511139945fa7586.tar.gz linux-bd7845337b105e090dd18912d511139945fa7586.tar.bz2 linux-bd7845337b105e090dd18912d511139945fa7586.zip | |
tipc: Expand link sequence gap field to 13 bits
This patch increases the "sequence gap" field of the LINK_PROTOCOL
message header from 8 bits to 13 bits (utilizing 5 previously
unused 0 bits). This ensures that the field is big enough to
indicate the loss of up to 8191 consecutive messages on the link,
thereby accommodating the current worst-case scenario of 4000
lost messages.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
| -rw-r--r-- | net/tipc/msg.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/tipc/msg.h b/net/tipc/msg.h index 3418ffa72c94..b23619fab968 100644 --- a/net/tipc/msg.h +++ b/net/tipc/msg.h @@ -2,7 +2,7 @@ * net/tipc/msg.h: Include file for TIPC message header routines * * Copyright (c) 2000-2007, Ericsson AB - * Copyright (c) 2005-2007, Wind River Systems + * Copyright (c) 2005-2008, Wind River Systems * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -325,7 +325,7 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m) +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ w0:|vers |msg usr|hdr sz |n|resrv| packet size | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - w1:|m typ|rsv=0| sequence gap | broadcast ack no | + w1:|m typ| sequence gap | broadcast ack no | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ w2:| link level ack no/bc_gap_from | seq no / bcast_gap_to | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ @@ -388,12 +388,12 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m) static inline u32 msg_seq_gap(struct tipc_msg *m) { - return msg_bits(m, 1, 16, 0xff); + return msg_bits(m, 1, 16, 0x1fff); } static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n) { - msg_set_bits(m, 1, 16, 0xff, n); + msg_set_bits(m, 1, 16, 0x1fff, n); } static inline u32 msg_req_links(struct tipc_msg *m) |