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author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2007-12-12 12:28:40 -0200 |
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committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:57:16 -0800 |
commit | 8995a238ef6869bc5c80240440bc58452c7af283 (patch) | |
tree | 40850acfd1042ecdf9bf3f745358871ef42772bb /net/dccp/ccids/lib/packet_history.h | |
parent | df8f83fdd6369e1ba85f089fd6fe26bb2ddcb36f (diff) | |
download | linux-8995a238ef6869bc5c80240440bc58452c7af283.tar.bz2 |
[TFRC]: Loss interval code needs the macros/inlines that were moved
This moves the inlines (which were previously declared as macros) back into
packet_history.h since the loss detection code needs to be able to read entries
from the RX history in order to create the relevant loss entries: it needs at
least tfrc_rx_hist_loss_prev() and tfrc_rx_hist_last_rcv(), which in turn
require the definition of the other inlines (macros).
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp/ccids/lib/packet_history.h')
-rw-r--r-- | net/dccp/ccids/lib/packet_history.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/net/dccp/ccids/lib/packet_history.h b/net/dccp/ccids/lib/packet_history.h index 3dfd182b0e64..e58b0fcdc6ae 100644 --- a/net/dccp/ccids/lib/packet_history.h +++ b/net/dccp/ccids/lib/packet_history.h @@ -84,6 +84,41 @@ struct tfrc_rx_hist { #define rtt_sample_prev loss_start }; +/** + * tfrc_rx_hist_index - index to reach n-th entry after loss_start + */ +static inline u8 tfrc_rx_hist_index(const struct tfrc_rx_hist *h, const u8 n) +{ + return (h->loss_start + n) & TFRC_NDUPACK; +} + +/** + * tfrc_rx_hist_last_rcv - entry with highest-received-seqno so far + */ +static inline struct tfrc_rx_hist_entry * + tfrc_rx_hist_last_rcv(const struct tfrc_rx_hist *h) +{ + return h->ring[tfrc_rx_hist_index(h, h->loss_count)]; +} + +/** + * tfrc_rx_hist_entry - return the n-th history entry after loss_start + */ +static inline struct tfrc_rx_hist_entry * + tfrc_rx_hist_entry(const struct tfrc_rx_hist *h, const u8 n) +{ + return h->ring[tfrc_rx_hist_index(h, n)]; +} + +/** + * tfrc_rx_hist_loss_prev - entry with highest-received-seqno before loss was detected + */ +static inline struct tfrc_rx_hist_entry * + tfrc_rx_hist_loss_prev(const struct tfrc_rx_hist *h) +{ + return h->ring[h->loss_start]; +} + extern void tfrc_rx_hist_add_packet(struct tfrc_rx_hist *h, const struct sk_buff *skb, const u32 ndp); |