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From Matt Thomas:

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"I screwed the initialization of the burstsize.  Right now it will default
to 0 (which can cause corruption problems on high latency PCI buses).  It
should be set to 8 longwords to avoid problems with certain PCI chipsets."

Submitted by:	Matt Thomas <matt@lkg.dec.com>
This commit is contained in:
David Greenman 1995-10-26 07:40:11 +00:00
parent 01fc1ee969
commit 0d9a79f8a6
2 changed files with 6 additions and 4 deletions
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5
sys/dev/de/if_de.c
View File

@ -21,7 +21,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: if_de.c,v 1.33 1995/10/07 20:34:30 davidg Exp $
* $Id: if_de.c,v 1.34 1995/10/13 19:48:03 wollman Exp $
*
*/
@ -919,7 +919,8 @@ tulip_reset(
TULIP_WRITE_CSR(sc, csr_txlist, vtophys(&sc->tulip_txinfo.ri_first[0]));
TULIP_WRITE_CSR(sc, csr_rxlist, vtophys(&sc->tulip_rxinfo.ri_first[0]));
TULIP_WRITE_CSR(sc, csr_busmode,
((1 << TULIP_BURSTSIZE(sc->tulip_unit)) << 8)|TULIP_BUSMODE_CACHE_ALIGN8
(1 << (TULIP_BURSTSIZE(sc->tulip_unit) + 8))
|TULIP_BUSMODE_CACHE_ALIGN8
|(BYTE_ORDER != LITTLE_ENDIAN ? TULIP_BUSMODE_BIGENDIAN : 0));
sc->tulip_txq.ifq_maxlen = TULIP_TXDESCS;

5
sys/pci/if_de.c
View File

@ -21,7 +21,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: if_de.c,v 1.33 1995/10/07 20:34:30 davidg Exp $
* $Id: if_de.c,v 1.34 1995/10/13 19:48:03 wollman Exp $
*
*/
@ -919,7 +919,8 @@ tulip_reset(
TULIP_WRITE_CSR(sc, csr_txlist, vtophys(&sc->tulip_txinfo.ri_first[0]));
TULIP_WRITE_CSR(sc, csr_rxlist, vtophys(&sc->tulip_rxinfo.ri_first[0]));
TULIP_WRITE_CSR(sc, csr_busmode,
((1 << TULIP_BURSTSIZE(sc->tulip_unit)) << 8)|TULIP_BUSMODE_CACHE_ALIGN8
(1 << (TULIP_BURSTSIZE(sc->tulip_unit) + 8))
|TULIP_BUSMODE_CACHE_ALIGN8
|(BYTE_ORDER != LITTLE_ENDIAN ? TULIP_BUSMODE_BIGENDIAN : 0));
sc->tulip_txq.ifq_maxlen = TULIP_TXDESCS;