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e1000e: correct flow control thresholds
authorBruce Allan <bruce.w.allan@intel.com>
Tue, 2 Jun 2009 11:28:39 +0000 (11:28 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 3 Jun 2009 09:46:33 +0000 (02:46 -0700)
commit3ec2a2b80f3eb53851fe4cef9e65b5d33376ef89
treeaa95f81379ccc614232fdf127e9706b5d61cc7a8
parent918d7197aa18a562eb7dc37b80a87e9ff1d7f7d9
e1000e: correct flow control thresholds

The flow control thresholds, i.e. high and low watermarks of the Rx
FIFO for when the hardware should transmit PAUSE frames (XON and XOFF,
respectively), need to be tuned for more efficient use of the FIFO.
The logic to set the thresholds for parts that support early-receive
(ERT) was also wrong in that it should check whether jumbo frames are
in use.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/e1000e/defines.h
drivers/net/e1000e/netdev.c