mlx4_core: For 64-bit systems, vmap() kernel queue buffers

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Since kernel virtual memory is not a problem on 64-bit systems, there
is no reason to use our own 2-layer page mapping scheme for large
kernel queue buffers on such systems.  Instead, map the page list to a
single virtually contiguous buffer with vmap(), so that can we access
buffer memory via direct indexing.

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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Jack Morgenstein 2008-01-28 10:40:51 +02:00 • committed by Roland Dreier

parent 1c69fc2a90

commit 313abe55a8

2 changed files with 18 additions and 2 deletions

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16

drivers/net/mlx4/alloc.c

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4

include/linux/mlx4/device.h

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