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) ...@@ -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) static void b44_set_flow_ctrl(struct b44 *bp, u32 local, u32 remote)
{ {
u32 pause_enab = bp->flags & (B44_FLAG_TX_PAUSE | u32 pause_enab = 0;
B44_FLAG_RX_PAUSE);
/* The driver supports only rx pause by default because
if (local & ADVERTISE_PAUSE_CAP) { the b44 mac tx pause mechanism generates excessive
if (local & ADVERTISE_PAUSE_ASYM) { pause frames.
if (remote & LPA_PAUSE_CAP) Use ethtool to turn on b44 tx pause if necessary.
pause_enab |= (B44_FLAG_TX_PAUSE | */
B44_FLAG_RX_PAUSE); if ((local & ADVERTISE_PAUSE_CAP) &&
else if (remote & LPA_PAUSE_ASYM) (local & ADVERTISE_PAUSE_ASYM)){
pause_enab |= B44_FLAG_RX_PAUSE; if ((remote & LPA_PAUSE_ASYM) &&
} else { !(remote & LPA_PAUSE_CAP))
if (remote & LPA_PAUSE_CAP) pause_enab |= B44_FLAG_RX_PAUSE;
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;
} }
__b44_set_flow_ctrl(bp, pause_enab); __b44_set_flow_ctrl(bp, pause_enab);
......
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