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10 commits

Author SHA1 Message Date
Lijun Ou
c7bcb13442 RDMA/hns: Add SRQ support for hip08 kernel mode
This patch implements the SRQ(Share Receive Queue) verbs
and update the poll cq verbs to deal with SRQ complentions.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-05 07:59:13 -07:00
Yixian Liu
0425e3e6e0 RDMA/hns: Support flush cqe for hip08 in kernel space
According to IB protocol, there are some cases that work requests must
return the flush error completion status through the completion queue. Due
to hardware limitation, the driver needs to assist the flush process.

This patch adds the support of flush cqe for hip08 in the cases that
needed, such as poll cqe, post send, post recv and aeqe handle.

The patch also considered the compatibility between kernel and user space.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-08-02 20:03:25 -06:00
Jason Gunthorpe
d50e14abe2 uapi: Fix SPDX tags for files referring to the 'OpenIB.org' license
Based on discussion with Kate Stewart this license is not a
BSD-2-Clause, but is now formally identified as Linux-OpenIB
by SPDX.

The key difference between the licenses is in the 'warranty'
paragraph.

if_infiniband.h refers to the 'OpenIB.org' license, but
does not include the text, instead it links to an obsolete
web site that contains a license that matches the BSD-2-Clause
SPX. There is no 'three clause' version of the OpenIB.org
license.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-04-23 11:10:33 -04:00
Jason Gunthorpe
26b9906612 RDMA: Change all uapi headers to use __aligned_u64 instead of __u64
The new auditing standard for the subsystem will be to only use
__aligned_64 in uapi headers to try and prevent 32/64 compat bugs
from existing in the future.

Changing all existing usage will help ensure new developers copy the
right idea.

The before/after of this patch was tested using pahole on 32 and 64
bit compiles to confirm it has no change in the structure layout, so
this patch is a NOP.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-27 14:25:09 -06:00
Jason Gunthorpe
633fb4d9fd RDMA/hns: Use structs to describe the uABI instead of opencoding
Open coding a loose value is not acceptable for describing the uABI in
RDMA. Provide the missing struct.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-15 15:58:04 -06:00
Yixian Liu
7b48221cf4 RDMA/hns: Fix cqn type and init resp
This patch changes the type of cqn from u32 to u64 to keep
userspace and kernel consistent, initializes resp both for
cq and qp to zeros, and also changes the condition judgment
of outlen considering future caps extension.

Suggested-by: Jason Gunthorpe <jgg@mellanox.com>
Fixes: e088a685ea (hns: Support rq record doorbell for the user space)
Fixes: 9b44703d0a (hns: Support cq record doorbell for the user space)
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-15 15:34:26 -06:00
Yixian Liu
9b44703d0a RDMA/hns: Support cq record doorbell for the user space
This patch updates to support cq record doorbell for
the user space.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-13 16:40:15 -04:00
Yixian Liu
e088a685ea RDMA/hns: Support rq record doorbell for the user space
This patch adds interfaces and definitions to support the rq record
doorbell for the user space.

Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-03-13 16:40:15 -04:00
Greg Kroah-Hartman
e2be04c7f9 License cleanup: add SPDX license identifier to uapi header files with a license
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be.  This makes it hard for
compliance tools to determine the correct license.

Update these files with an SPDX license identifier.  The identifier was
chosen based on the license information in the file.

GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:

   NOTE! This copyright does *not* cover user programs that use kernel
   services by normal system calls - this is merely considered normal use
   of the kernel, and does *not* fall under the heading of "derived work".

This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.

Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier.  The format
is:
        ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)

SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text.  The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.  See the previous patch in this series for the
methodology of how this patch was researched.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:20:11 +01:00
Leon Romanovsky
4d4099584c IB/hns: Move HNS RoCE user vendor structures
This patch moves HNS vendor's specific structures to
common UAPI folder which will be visible to all consumers.

Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-03 14:23:14 -05:00
Renamed from drivers/infiniband/hw/hns/hns_roce_user.h (Browse further)