Author: yongari
Date: Wed Oct 26 18:27:01 2011
New Revision: 226806
URL: http://svn.freebsd.org/changeset/base/226806
Log:
Broadcom says BCM5755 or higher and BCM5906 have short DMA bug.
Apply workaround to these 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 18:19:50 2011 (r226805)
+++ head/sys/dev/bge/if_bge.c Wed Oct 26 18:27:01 2011 (r226806)
@@ -2828,7 +2828,6 @@ bge_attach(device_t dev)
switch (sc->bge_asicrev) {
case BGE_ASICREV_BCM5717:
case BGE_ASICREV_BCM5719:
- sc->bge_flags |= BGE_FLAG_SHORT_DMA_BUG;
case BGE_ASICREV_BCM57765:
sc->bge_flags |= BGE_FLAG_5717_PLUS | BGE_FLAG_5755_PLUS |
BGE_FLAG_575X_PLUS | BGE_FLAG_5705_PLUS | BGE_FLAG_JUMBO |
@@ -2863,8 +2862,6 @@ bge_attach(device_t dev)
case BGE_ASICREV_BCM5752:
case BGE_ASICREV_BCM5906:
sc->bge_flags |= BGE_FLAG_575X_PLUS;
- if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
- sc->bge_flags |= BGE_FLAG_SHORT_DMA_BUG;
/* FALLTHROUGH */
case BGE_ASICREV_BCM5705:
sc->bge_flags |= BGE_FLAG_5705_PLUS;
@@ -2926,6 +2923,10 @@ bge_attach(device_t dev)
*/
sc->bge_flags |= BGE_FLAG_4G_BNDRY_BUG;
+ /* BCM5755 or higher and BCM5906 have short DMA bug. */
+ if (BGE_IS_5755_PLUS(sc) || sc->bge_asicrev == BGE_ASICREV_BCM5906)
+ sc->bge_flags |= BGE_FLAG_SHORT_DMA_BUG;
+
misccfg = CSR_READ_4(sc, BGE_MISC_CFG) & BGE_MISCCFG_BOARD_ID;
if (sc->bge_asicrev == BGE_ASICREV_BCM5705) {
if (misccfg == BGE_MISCCFG_BOARD_ID_5788 ||
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