ConnectX-3 RSS Implementation

Hi Doug,

This patch set adds to ConnectX-3 devices the ability to use RSS feature, which was initially implemented in mlx5-based devices [1].

The backport of RSS feature to ConnectX-3 hardware was a challenge task due to differences in architectures between mlx4 and mlx5 based devices.

It caused to a limited number of usage limitations, mentioned in the relevant commit messages where it applies.

This series supports all RSS related verbs.

Thanks.

[1] https://www.spinics.net/lists/linux-rdma/msg36526.html

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We based this series on our previous mlx4 submissions to reduce merge conflicts. For your convenience, I prepared the branch with the following merge sequence:
"topic/no-io" -> "topic/mlx4-resource-utilization" -> "topic/mlx4-receive-inline"

Available in the "topic/mlx4-rss" topic branch of this git repo:
git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git

Or for browsing:
https://git.kernel.org/cgit/linux/kernel/git/leon/linux-rdma.git/log/?h=topic/mlx4-rss

Thanks

Guy Levi (4):
IB/mlx4: Add support for WQ related verbs IB/mlx4: Add support for WQ indirection table related verbs IB/mlx4: Add support for RSS QP
IB/mlx4: Expose RSS capabilities

 drivers/infiniband/hw/mlx4/main.c    |  51 ++
 drivers/infiniband/hw/mlx4/mlx4_ib.h |  32 +-
 drivers/infiniband/hw/mlx4/qp.c      | 907 ++++++++++++++++++++++++++++++++---
 include/uapi/rdma/mlx4-abi.h         |  49 ++
 4 files changed, 975 insertions(+), 64 deletions(-)

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2.13.1

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