fix qwx_dp_shadow_start_timer()

We must count all Tx attempts in order to avoid the Tx shadow
timeout handler resetting Tx ring pointers when it shouldn't.

diff --git a/sys/dev/ic/qwx.c b/sys/dev/ic/qwx.c
index fe8b32a..d9f94e5 100644 (file)
--- a/sys/dev/ic/qwx.c
+++ b/sys/dev/ic/qwx.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: qwx.c,v 1.25 2024/02/08 14:31:53 stsp Exp $   */
+/*     $OpenBSD: qwx.c,v 1.26 2024/02/08 14:33:40 stsp Exp $   */
 
 /*
  * Copyright 2023 Stefan Sperling <stsp@openbsd.org>
@@ -9403,6 +9403,10 @@ qwx_dp_shadow_start_timer(struct qwx_softc *sc, struct hal_srng *srng,
        if (!sc->hw_params.supports_shadow_regs)
                return;
 
+       update_timer->tx_num++;
+       if (update_timer->started)
+               return;
+
        update_timer->started = 1;
        update_timer->timer_tx_num = update_timer->tx_num;