This adds some more debugging. Altered to take into account Gerrit's
comments.
Signed-off-by: Ian McDonald <ian.mcdonald@xxxxxxxxxxx>
Signed-off-by: Gerrit Renker <gerrit@xxxxxxxxxxxxxx>
---
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index 4401ab4..f1f9ebb 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -98,6 +98,11 @@ static inline void ccid3_update_send_time(struct ccid3_hc_tx_sock *hctx)
/* Calculate new delta by delta = min(t_ipi / 2, t_gran / 2) */
hctx->ccid3hctx_delta = min_t(u32, hctx->ccid3hctx_t_ipi / 2,
TFRC_OPSYS_HALF_TIME_GRAN);
+
+ ccid3_pr_debug("t_ipi=%u, delta=%u, s=%u, x=%llu\n",
+ hctx->ccid3hctx_t_ipi, hctx->ccid3hctx_delta,
+ hctx->ccid3hctx_s, hctx->ccid3hctx_x >> 6);
+
}
/*
* Update X by
@@ -140,8 +145,12 @@ static void ccid3_hc_tx_update_x(struct sock *sk, struct timeval *now)
hctx->ccid3hctx_t_ld = *now;
}
- if (hctx->ccid3hctx_x != old_x)
+ if (hctx->ccid3hctx_x != old_x) {
+ ccid3_pr_debug("X_prev=%llu, X_now=%llu, X_calc=%u, "
+ "X_recv=%llu\n", old_x, hctx->ccid3hctx_x,
+ hctx->ccid3hctx_x_calc, hctx->ccid3hctx_x_recv);
ccid3_update_send_time(hctx);
+ }
}
/*
@@ -338,6 +347,7 @@ static int ccid3_hc_tx_send_packet(struct sock *sk, struct sk_buff *skb)
case TFRC_SSTATE_NO_FBACK:
case TFRC_SSTATE_FBACK:
delay = timeval_delta(&hctx->ccid3hctx_t_nom, &now);
+ ccid3_pr_debug("delay=%ld\n", (long)delay);
/*
* Scheduling of packet transmissions [RFC 3448, 4.6]
*
-
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