tree 833ff3c4b33f83d4ca64ed322c2d8efa21529d71
parent 1c69fc2a9012e160c8d459f63df74a6b01db8322
author Jack Morgenstein <jackm@dev.mellanox.co.il> 1201509651 +0200
committer Roland Dreier <rolandd@cisco.com> 1202361465 -0800

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

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>