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IB/ipath: Enable 4KB MTU

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Enable use of 4KB MTU.  Since the driver uses more pinned memory for
receive buffers when the 4KB MTU is enabled, whether or not the fabric
supports that MTU, add a "mtu4096" module parameter that can be used to
limit the MTU to 2KB when it is known that 4KB MTUs can't be used
anyway.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Dave Olson 2008-04-16 21:01:12 -07:00 • committed by Roland Dreier
commit 826d801009
8 changed files with 45 additions and 65 deletions
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