tree eadc6903f24a01af114b3379bc1f7efd6652f59b
parent d3c9bc2743dc95b273ed0e6a3394a71ca314813c
author Tariq Toukan <tariqt@mellanox.com> 1461178935 +0300
committer David S. Miller <davem@davemloft.net> 1461265745 -0400

net/mlx5e: Add fragmented memory support for RX multi packet WQE

If the allocation of a linear (physically continuous) MPWQE fails,
we allocate a fragmented MPWQE.

This is implemented via device's UMR (User Memory Registration)
which allows to register multiple memory fragments into ConnectX
hardware as a continuous buffer.
UMR registration is an asynchronous operation and is done via
ICO SQs.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>