Commit 2b474cf5 authored by Gary Zambrano's avatar Gary Zambrano Committed by Jeff Garzik

[PATCH] b44: disable default tx pause

Disable default tx pause frame support.
The b44 controller has a bug that generates excessive tx pause
frames.
Signed-off-by: default avatarGary Zambrano <zambrano@broadcom.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 4be5de25
......@@ -410,25 +410,18 @@ static void __b44_set_flow_ctrl(struct b44 *bp, u32 pause_flags)
static void b44_set_flow_ctrl(struct b44 *bp, u32 local, u32 remote)
{
u32 pause_enab = bp->flags & (B44_FLAG_TX_PAUSE |
B44_FLAG_RX_PAUSE);
if (local & ADVERTISE_PAUSE_CAP) {
if (local & ADVERTISE_PAUSE_ASYM) {
if (remote & LPA_PAUSE_CAP)
pause_enab |= (B44_FLAG_TX_PAUSE |
B44_FLAG_RX_PAUSE);
else if (remote & LPA_PAUSE_ASYM)
pause_enab |= B44_FLAG_RX_PAUSE;
} else {
if (remote & LPA_PAUSE_CAP)
pause_enab |= (B44_FLAG_TX_PAUSE |
B44_FLAG_RX_PAUSE);
}
} else if (local & ADVERTISE_PAUSE_ASYM) {
if ((remote & LPA_PAUSE_CAP) &&
(remote & LPA_PAUSE_ASYM))
pause_enab |= B44_FLAG_TX_PAUSE;
u32 pause_enab = 0;
/* The driver supports only rx pause by default because
the b44 mac tx pause mechanism generates excessive
pause frames.
Use ethtool to turn on b44 tx pause if necessary.
*/
if ((local & ADVERTISE_PAUSE_CAP) &&
(local & ADVERTISE_PAUSE_ASYM)){
if ((remote & LPA_PAUSE_ASYM) &&
!(remote & LPA_PAUSE_CAP))
pause_enab |= B44_FLAG_RX_PAUSE;
}
__b44_set_flow_ctrl(bp, pause_enab);
......
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