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Use the full 8bits range for loss

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Signed-off-by: Adrien Gallouët <adrien@gallouet.fr>
This commit is contained in:
Adrien Gallouët
2019-12-26 16:56:59 +00:00
parent a6acb8736c
commit 9e3e2b358b
1 changed files with 5 additions and 7 deletions
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12
mud.c
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@@ -86,9 +86,7 @@
#define MUD_TIME_TOLERANCE ( 10 * MUD_ONE_MIN) #define MUD_TIME_TOLERANCE ( 10 * MUD_ONE_MIN)
#define MUD_TC (192) // CS6 #define MUD_TC (192) // CS6
#define MUD_LOSS_LIMIT (25)
#define MUD_LOSS_LIMIT (20)
#define MUD_LOSS_COUNT (1000)
#define MUD_CTRL_SIZE (CMSG_SPACE(MUD_PKTINFO_SIZE) + \ #define MUD_CTRL_SIZE (CMSG_SPACE(MUD_PKTINFO_SIZE) + \
CMSG_SPACE(sizeof(struct in6_pktinfo)) + \ CMSG_SPACE(sizeof(struct in6_pktinfo)) + \
@@ -747,12 +745,12 @@ mud_set_tc(struct mud *mud, int tc)
int int
mud_set_loss_limit(struct mud *mud, unsigned loss) mud_set_loss_limit(struct mud *mud, unsigned loss)
{ {
if (loss > 100) { if (loss > 100U) {
errno = EINVAL; errno = EINVAL;
return -1; return -1;
} }
mud->loss_limit = loss; mud->loss_limit = loss * 255U / 100U;
return 0; return 0;
} }
@@ -1215,9 +1213,9 @@ mud_update_window(struct mud *mud, struct mud_path *path, uint64_t now,
uint64_t tx_acc = path->msg.tx.acc + tx_pkt; uint64_t tx_acc = path->msg.tx.acc + tx_pkt;
uint64_t rx_acc = path->msg.rx.acc + rx_pkt; uint64_t rx_acc = path->msg.rx.acc + rx_pkt;
if (tx_acc > MUD_LOSS_COUNT) { if (tx_acc > 10 * MUD_LOSS_LIMIT) {
if (tx_acc >= rx_acc) { if (tx_acc >= rx_acc) {
uint64_t loss = (tx_acc - rx_acc) * 100 / tx_acc; uint64_t loss = (tx_acc - rx_acc) * 255U / tx_acc;
path->tx.loss = (6 * path->tx.loss + 2 * loss) / 8; path->tx.loss = (6 * path->tx.loss + 2 * loss) / 8;
} }
path->msg.tx.acc = 0; path->msg.tx.acc = 0;