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Do as the Linux tg3 driver does and enable MSI support also

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for the BCM5714 revision A0 when in a multi-port configuration
and unconditionally for the remainder of the class of BCM575X
and beyond chips.
This was prodded by mav and is based on a suggestion and a
patch submitted by jhb.

Reviewed by:	jhb
MFC after:	2 months
This commit is contained in:
Marius Strobl 2008-10-27 22:10:01 +00:00
parent 25ea4c843f
commit a8376f70e7
1 changed files with 6 additions and 6 deletions
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10
sys/dev/bge/if_bge.c
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@ -2328,10 +2328,11 @@ bge_can_use_msi(struct bge_softc *sc)
int can_use_msi = 0;
switch (sc->bge_asicrev) {
case BGE_ASICREV_BCM5714_A0:
case BGE_ASICREV_BCM5714:
/*
* Apparently, MSI doesn't work when this chip is configured
* in single-port mode.
* Apparently, MSI doesn't work when these chips are
* configured in single-port mode.
*/
if (bge_has_multiple_ports(sc))
can_use_msi = 1;
@ -2341,10 +2342,9 @@ bge_can_use_msi(struct bge_softc *sc)
sc->bge_chiprev != BGE_CHIPREV_5750_BX)
can_use_msi = 1;
break;
case BGE_ASICREV_BCM5752:
case BGE_ASICREV_BCM5780:
default:
if (BGE_IS_575X_PLUS(sc))
can_use_msi = 1;
break;
}
return (can_use_msi);
}