libxscale is a user-space driver that provides RDMA
capabilities to user applications. The current patch
includes the following components:
1. basic compile framework
2. register/unregister user-space driver via verbs
3. query_port
4. query_device_ex

Signed-off-by: Tian Xin <tianx@yunsilicon.com>
Signed-off-by: Wei Honggang <weihg@yunsilicon.com>
Signed-off-by: Zhao Qianwei <zhaoqw@yunsilicon.com>
Signed-off-by: Li Qiang <liq@yunsilicon.com>
Signed-off-by: Yan Lei <jacky@yunsilicon.com>

This patch adds support for pd and mr operations including:
1. alloc_pd
2. dealloc_pd
3. reg_mr
4. dereg_mr

Signed-off-by: Tian Xin <tianx@yunsilicon.com>
Signed-off-by: Wei Honggang <weihg@yunsilicon.com>
Signed-off-by: Zhao Qianwei <zhaoqw@yunsilicon.com>
Signed-off-by: Li Qiang <liq@yunsilicon.com>
Signed-off-by: Yan Lei <jacky@yunsilicon.com>

This patch adds support for the following cq verbs:
1. create_cq
2. poll_cq
3. req_notify_cq
4. resize_cq
5. destroy_cq

Signed-off-by: Tian Xin <tianx@yunsilicon.com>
Signed-off-by: Wei Honggang <weihg@yunsilicon.com>
Signed-off-by: Zhao Qianwei <zhaoqw@yunsilicon.com>
Signed-off-by: Li Qiang <liq@yunsilicon.com>
Signed-off-by: Yan Lei <jacky@yunsilicon.com>

This patch adds support for following qp management verbs:
1. create_qp
2. query_qp
3. modify_qp
4. destroy_qp

Signed-off-by: Tian Xin <tianx@yunsilicon.com>
Signed-off-by: Wei Honggang <weihg@yunsilicon.com>
Signed-off-by: Zhao Qianwei <zhaoqw@yunsilicon.com>
Signed-off-by: Li Qiang <liq@yunsilicon.com>
Signed-off-by: Yan Lei <jacky@yunsilicon.com>

This patch adds support for post_send and post_recv routines.

Signed-off-by: Tian Xin <tianx@yunsilicon.com>
Signed-off-by: Wei Honggang <weihg@yunsilicon.com>
Signed-off-by: Zhao Qianwei <zhaoqw@yunsilicon.com>
Signed-off-by: Li Qiang <liq@yunsilicon.com>
Signed-off-by: Yan Lei <jacky@yunsilicon.com>

This patch adds xscale needed kernel abi headers into
the kernel-headers directory.

Signed-off-by: Tian Xin <tianx@yunsilicon.com>
Signed-off-by: Wei Honggang <weihg@yunsilicon.com>
Signed-off-by: Zhao Qianwei <zhaoqw@yunsilicon.com>
Signed-off-by: Li Qiang <liq@yunsilicon.com>
Signed-off-by: Yan Lei <jacky@yunsilicon.com>