Author: yongari
Date: Wed Oct 26 18:19:50 2011
New Revision: 226805
URL: http://svn.freebsd.org/changeset/base/226805
Log:
It is known that all Broadcom controllers have 4GB boundary DMA
bug. Apply workaround to all controllers.
Modified:
head/sys/dev/bge/if_bge.c
Modified: head/sys/dev/bge/if_bge.c
==============================================================================
--- head/sys/dev/bge/if_bge.c Wed Oct 26 18:05:46 2011 (r226804)
+++ head/sys/dev/bge/if_bge.c Wed Oct 26 18:19:50 2011 (r226805)
@@ -2918,15 +2918,13 @@ bge_attach(device_t dev)
sc->bge_mi_mode |= BGE_MIMODE_AUTOPOLL;
/*
- * All controllers that are not 5755 or higher have 4GB
- * boundary DMA bug.
+ * All Broadcom controllers have 4GB boundary DMA bug.
* Whenever an address crosses a multiple of the 4GB boundary
* (including 4GB, 8Gb, 12Gb, etc.) and makes the transition
* from 0xX_FFFF_FFFF to 0x(X+1)_0000_0000 an internal DMA
* state machine will lockup and cause the device to hang.
*/
- if (BGE_IS_5755_PLUS(sc) == 0)
- sc->bge_flags |= BGE_FLAG_4G_BNDRY_BUG;
+ sc->bge_flags |= BGE_FLAG_4G_BNDRY_BUG;
misccfg = CSR_READ_4(sc, BGE_MISC_CFG) & BGE_MISCCFG_BOARD_ID;
if (sc->bge_asicrev == BGE_ASICREV_BCM5705) {
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