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| author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2010-11-14 17:25:23 +0100 |
|---|---|---|
| committer | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2010-11-15 07:11:59 +0100 |
| commit | 3802408644515e29fb723d51a5317301b212cf3a (patch) | |
| tree | 834533b0cf43366747ea237b43f06e4462aed94e /net/dccp/ackvec.h | |
| parent | dccp ccid-2: Algorithm to update buffer state (diff) | |
| download | linux-3802408644515e29fb723d51a5317301b212cf3a.tar.xz linux-3802408644515e29fb723d51a5317301b212cf3a.zip | |
dccp ccid-2: Update code for the Ack Vector input/registration routine
This patch updates the code which registers new packets as received, using the
new circular buffer interface. It contributes a new algorithm which
* supports both tail/head pointers and buffer wrap-around and
* deals with overflow (head/tail move in lock-step).
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Diffstat (limited to 'net/dccp/ackvec.h')
| -rw-r--r-- | net/dccp/ackvec.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/dccp/ackvec.h b/net/dccp/ackvec.h index 3f7008187b8e..21c4212d1be0 100644 --- a/net/dccp/ackvec.h +++ b/net/dccp/ackvec.h @@ -29,6 +29,9 @@ /* Estimated minimum average Ack Vector length - used for updating MPS */ #define DCCPAV_MIN_OPTLEN 16 +/* Threshold for coping with large bursts of losses */ +#define DCCPAV_BURST_THRESH (DCCPAV_MAX_ACKVEC_LEN / 8) + enum dccp_ackvec_states { DCCPAV_RECEIVED = 0x00, DCCPAV_ECN_MARKED = 0x40, @@ -116,6 +119,7 @@ extern int dccp_ackvec_parse(struct sock *sk, const struct sk_buff *skb, u64 *ackno, const u8 opt, const u8 *value, const u8 len); +extern void dccp_ackvec_input(struct dccp_ackvec *av, struct sk_buff *skb); extern int dccp_ackvec_update_records(struct dccp_ackvec *av, u64 seq, u8 sum); extern void dccp_ackvec_clear_state(struct dccp_ackvec *av, const u64 ackno); extern u16 dccp_ackvec_buflen(const struct dccp_ackvec *av); |