Ivan Vecera
ba67b51003
tg3: update rx_jumbo_pending ring param only when jumbo frames are enabled
...
The patch fixes a problem with dropped jumbo frames after usage of
'ethtool -G ... rx'.
Scenario:
1. ip link set eth0 up
2. ethtool -G eth0 rx N # <- This zeroes rx-jumbo
3. ip link set mtu 9000 dev eth0
The ethtool command set rx_jumbo_pending to zero so any received jumbo
packets are dropped and you need to use 'ethtool -G eth0 rx-jumbo N'
to workaround the issue.
The patch changes the logic so rx_jumbo_pending value is changed only if
jumbo frames are enabled (MTU > 1500).
Signed-off-by: Ivan Vecera <ivecera@redhat.com >
Acked-by: Michael Chan <mchan@broadcom.com >
Signed-off-by: David S. Miller <davem@davemloft.net >
2014-04-18 18:01:13 -04:00
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