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[TFRC]: CCID3 (and CCID4) needs to access these inlines

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This moves two inlines back to packet_history.h: these are not private
to packet_history.c, but are needed by CCID3/4 to detect whether a new
loss is indicated, or whether a loss is already pending.

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>
This commit is contained in:
Gerrit Renker 2007-12-12 14:03:01 -02:00 committed by David S. Miller
parent db64196038
commit de0d411cb8
2 changed files with 31 additions and 30 deletions
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26
net/dccp/ccids/lib/packet_history.c
View File

@ -191,32 +191,6 @@ int tfrc_rx_hist_duplicate(struct tfrc_rx_hist *h, struct sk_buff *skb)
} }
EXPORT_SYMBOL_GPL(tfrc_rx_hist_duplicate); EXPORT_SYMBOL_GPL(tfrc_rx_hist_duplicate);
/* initialise loss detection and disable RTT sampling */
static inline void tfrc_rx_hist_loss_indicated(struct tfrc_rx_hist *h)
{
h->loss_count = 1;
}
/* indicate whether previously a packet was detected missing */
static inline int tfrc_rx_hist_loss_pending(const struct tfrc_rx_hist *h)
{
return h->loss_count;
}
/* any data packets missing between last reception and skb ? */
int tfrc_rx_hist_new_loss_indicated(struct tfrc_rx_hist *h,
const struct sk_buff *skb, u32 ndp)
{
int delta = dccp_delta_seqno(tfrc_rx_hist_last_rcv(h)->tfrchrx_seqno,
DCCP_SKB_CB(skb)->dccpd_seq);
if (delta > 1 && ndp < delta)
tfrc_rx_hist_loss_indicated(h);
return tfrc_rx_hist_loss_pending(h);
}
EXPORT_SYMBOL_GPL(tfrc_rx_hist_new_loss_indicated);
static void tfrc_rx_hist_swap(struct tfrc_rx_hist *h, const u8 a, const u8 b) static void tfrc_rx_hist_swap(struct tfrc_rx_hist *h, const u8 a, const u8 b)
{ {
const u8 idx_a = tfrc_rx_hist_index(h, a), const u8 idx_a = tfrc_rx_hist_index(h, a),

35
net/dccp/ccids/lib/packet_history.h
View File

@ -118,16 +118,43 @@ static inline struct tfrc_rx_hist_entry *
return h->ring[h->loss_start]; return h->ring[h->loss_start];
} }
/* initialise loss detection and disable RTT sampling */
static inline void tfrc_rx_hist_loss_indicated(struct tfrc_rx_hist *h)
{
h->loss_count = 1;
}
/* indicate whether previously a packet was detected missing */
static inline int tfrc_rx_hist_loss_pending(const struct tfrc_rx_hist *h)
{
return h->loss_count;
}
/* any data packets missing between last reception and skb ? */
static inline int tfrc_rx_hist_new_loss_indicated(struct tfrc_rx_hist *h,
const struct sk_buff *skb,
u32 ndp)
{
int delta = dccp_delta_seqno(tfrc_rx_hist_last_rcv(h)->tfrchrx_seqno,
DCCP_SKB_CB(skb)->dccpd_seq);
if (delta > 1 && ndp < delta)
tfrc_rx_hist_loss_indicated(h);
return tfrc_rx_hist_loss_pending(h);
}
extern void tfrc_rx_hist_add_packet(struct tfrc_rx_hist *h, extern void tfrc_rx_hist_add_packet(struct tfrc_rx_hist *h,
const struct sk_buff *skb, const u32 ndp); const struct sk_buff *skb, const u32 ndp);
extern int tfrc_rx_hist_duplicate(struct tfrc_rx_hist *h, struct sk_buff *skb); extern int tfrc_rx_hist_duplicate(struct tfrc_rx_hist *h, struct sk_buff *skb);
extern int tfrc_rx_hist_new_loss_indicated(struct tfrc_rx_hist *h,
const struct sk_buff *skb, u32 ndp);
struct tfrc_loss_hist; struct tfrc_loss_hist;
extern int tfrc_rx_handle_loss(struct tfrc_rx_hist *, struct tfrc_loss_hist *, extern int tfrc_rx_handle_loss(struct tfrc_rx_hist *h,
struct tfrc_loss_hist *lh,
struct sk_buff *skb, u32 ndp, struct sk_buff *skb, u32 ndp,
u32 (*first_li)(struct sock *), struct sock *); u32 (*first_li)(struct sock *sk),
struct sock *sk);
extern u32 tfrc_rx_hist_sample_rtt(struct tfrc_rx_hist *h, extern u32 tfrc_rx_hist_sample_rtt(struct tfrc_rx_hist *h,
const struct sk_buff *skb); const struct sk_buff *skb);
extern int tfrc_rx_hist_alloc(struct tfrc_rx_hist *h); extern int tfrc_rx_hist_alloc(struct tfrc_rx_hist *h);