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Luoyouming 8eaa6f7d56 RDMA/hns: Fix ext_sge num error when post send 
In the HNS ROCE driver, The sge is divided into standard sge and extended
sge.  There are 2 standard sge in RC/XRC, and the UD standard sge is 0.
In the scenario of RC SQ inline, if the data does not exceed 32bytes, the
standard sge will be used. If it exceeds, only the extended sge will be
used to fill the data.

Currently, when filling the extended sge, max_gs is directly used as the
number of the extended sge, which did not subtract the number of standard
sge.  There is a logical error. The new algorithm subtracts the number of
standard sge from max_gs to get the actual number of extended sge.

Fixes: 30b707886a ("RDMA/hns: Support inline data in extented sge space for RC")
Link: https://lore.kernel.org/r/20221108133847.2304539-2-xuhaoyue1@hisilicon.com
Signed-off-by: Luoyouming <luoyouming@huawei.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-11-18 20:19:48 -04:00
arch - Rename a perf memory level event define to denote it is of CXL type 2022-10-30 09:49:18 -07:00
block block-6.1-2022-10-28 2022-10-29 18:06:52 -07:00
certs
crypto
Documentation 23 hotfixes. 2022-10-29 17:49:33 -07:00
drivers RDMA/hns: Fix ext_sge num error when post send 2022-11-18 20:19:48 -04:00
fs 3 cifs/smb3 fixes (also for stable) 2022-10-30 09:40:04 -07:00
include RDMA/mana: Remove redefinition of basic u64 type 2022-11-14 10:16:46 +02:00
init
io_uring
ipc ipc/msg.c: fix percpu_counter use after free 2022-10-28 13:37:22 -07:00
kernel - Rename a perf memory level event define to denote it is of CXL type 2022-10-30 09:49:18 -07:00
lib 23 hotfixes. 2022-10-29 17:49:33 -07:00
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mm mmap: fix remap_file_pages() regression 2022-10-28 13:37:23 -07:00
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tools Char/Misc fixes for 6.1-rc3 2022-10-30 11:22:33 -07:00
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MAINTAINERS RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter 2022-11-11 11:40:09 +02:00
Makefile Linux 6.1-rc3 2022-10-30 15:19:28 -07:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.