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