Author: marius
Date: Sat Feb 26 17:28:09 2011
New Revision: 219060
URL: http://svn.freebsd.org/changeset/base/219060
Log:
- Allocate the DMA memory shared between the host and the controller as
coherent.
- Update a comment to no longer reference Alpha.
Modified:
head/sys/dev/fxp/if_fxp.c
Modified: head/sys/dev/fxp/if_fxp.c
==============================================================================
--- head/sys/dev/fxp/if_fxp.c Sat Feb 26 17:22:11 2011 (r219059)
+++ head/sys/dev/fxp/if_fxp.c Sat Feb 26 17:28:09 2011 (r219060)
@@ -87,7 +87,7 @@ MODULE_DEPEND(fxp, miibus, 1, 1, 1);
#include "miibus_if.h"
/*
- * NOTE! On the Alpha, we have an alignment constraint. The
+ * NOTE! On !x86 we typically have an alignment constraint. The
* card DMAs the packet immediately following the RFA. However,
* the first thing in the packet is a 14-byte Ethernet header.
* This means that the packet is misaligned. To compensate,
@@ -675,7 +675,7 @@ fxp_attach(device_t dev)
}
error = bus_dmamem_alloc(sc->fxp_stag, (void **)&sc->fxp_stats,
- BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->fxp_smap);
+ BUS_DMA_NOWAIT | BUS_DMA_COHERENT | BUS_DMA_ZERO, &sc->fxp_smap);
if (error) {
device_printf(dev, "could not allocate stats DMA memory\n");
goto fail;
@@ -697,7 +697,7 @@ fxp_attach(device_t dev)
}
error = bus_dmamem_alloc(sc->cbl_tag, (void **)&sc->fxp_desc.cbl_list,
- BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->cbl_map);
+ BUS_DMA_NOWAIT | BUS_DMA_COHERENT | BUS_DMA_ZERO, &sc->cbl_map);
if (error) {
device_printf(dev, "could not allocate TxCB DMA memory\n");
goto fail;
@@ -722,7 +722,7 @@ fxp_attach(device_t dev)
}
error = bus_dmamem_alloc(sc->mcs_tag, (void **)&sc->mcsp,
- BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->mcs_map);
+ BUS_DMA_NOWAIT | BUS_DMA_COHERENT | BUS_DMA_ZERO, &sc->mcs_map);
if (error) {
device_printf(dev,
"could not allocate multicast setup DMA memory\n");
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