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Increase initial Tx drain threshold to 512 bytes.

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My macppc complains about transmit FIFO underrun every time.
This commit is contained in:
tsutsui 2000-10-28 08:36:57 +00:00
parent 14a62d1878
commit d214b09b47
1 changed files with 3 additions and 3 deletions
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6
sys/dev/pci/if_sip.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_sip.c,v 1.18 2000/10/15 20:02:31 thorpej Exp $ */
/* $NetBSD: if_sip.c,v 1.19 2000/10/28 08:36:57 tsutsui Exp $ */
/*-
* Copyright (c) 1999 Network Computer, Inc.
@ -1415,7 +1415,7 @@ sip_init(ifp)
}
if (sc->sc_tx_drain_thresh == 0) {
/*
* Start at a drain threshold of 128 bytes. We will
* Start at a drain threshold of 512 bytes. We will
* increase it if a DMA underrun occurs.
*
* XXX The minimum value of this variable should be
@ -1424,7 +1424,7 @@ sip_init(ifp)
* may trash the first few outgoing packets if the
* PCI bus is saturated.
*/
sc->sc_tx_drain_thresh = 4;
sc->sc_tx_drain_thresh = 512 / 32;
}
/*