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tg3: Preserve DASH connectivity when WOL enabled

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DASH firmware runs on the APE side of the chip, but it requires a few MAC
to be programmed correctly.

When WOL is enabled and management firmware is disabled, incoming
packets are evaluated and discarded at the chip's rule processor.
When management firmware is enabled, the hardware must be informed that
there are agents further up the stack that still use the incoming
frames.  Normally management firmware will configure the MAC correctly
on its own, but there can be cases where the setting could get clobbered
by the driver.  The first hunk of this patch preserves this setting.

The second hunk of this patch wipes out the driver present signature of
the APE memory space.  By doing so, the DASH firmware can assume
driver absent behavior.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson
2008-11-03 16:51:11 -08:00
committed by David S. Miller
parent 63532394af
commit b2aee1545d
2 changed files with 15 additions and 1 deletions
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1
drivers/net/tg3.h
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@ -327,6 +327,7 @@
#define MAC_MODE_TDE_ENABLE 0x00200000
#define MAC_MODE_RDE_ENABLE 0x00400000
#define MAC_MODE_FHDE_ENABLE 0x00800000
#define MAC_MODE_KEEP_FRAME_IN_WOL 0x01000000
#define MAC_MODE_APE_RX_EN 0x08000000
#define MAC_MODE_APE_TX_EN 0x10000000
#define MAC_STATUS 0x00000404