Author: loos
Date: Mon Jul 6 17:13:17 2015
New Revision: 285211
URL: https://svnweb.freebsd.org/changeset/base/285211
Log:
When initializing the (unused) TX descriptors it is not necessary set the
chain bit.
Obtained from: NetBSD
Modified:
head/sys/dev/dwc/if_dwc.c
Modified: head/sys/dev/dwc/if_dwc.c
==============================================================================
--- head/sys/dev/dwc/if_dwc.c Mon Jul 6 16:50:19 2015 (r285210)
+++ head/sys/dev/dwc/if_dwc.c Mon Jul 6 17:13:17 2015 (r285211)
@@ -898,10 +898,8 @@ setup_dma(struct dwc_softc *sc)
}
for (idx = 0; idx < TX_DESC_COUNT; idx++) {
- sc->txdesc_ring[idx].tdes0 = DDESC_TDES0_TXCHAIN;
- sc->txdesc_ring[idx].tdes1 = 0;
nidx = next_txidx(sc, idx);
- sc->txdesc_ring[idx].addr_next = sc->txdesc_ring_paddr + \
+ sc->txdesc_ring[idx].addr_next = sc->txdesc_ring_paddr +
(nidx * sizeof(struct dwc_hwdesc));
}
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