No description
  • C 98.2%
  • Assembly 1%
  • Makefile 0.3%
  • Shell 0.2%
  • Python 0.1%
Find a file
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Kaike Wan c2be3865a1 IB/hfi1: Calculate flow weight based on QP MTU for TID RDMA
For a TID RDMA WRITE request, a QP on the responder side could be put into
a queue when a hardware flow is not available. A RNR NAK will be returned
to the requester with a RNR timeout value based on the position of the QP
in the queue. The tid_rdma_flow_wt variable is used to calculate the
timeout value and is determined by using a MTU of 4096 at the module
loading time. This could reduce the timeout value by half from the desired
value, leading to excessive RNR retries.

This patch fixes the issue by calculating the flow weight with the real
MTU assigned to the QP.

Fixes: 07b923701e ("IB/hfi1: Add functions to receive TID RDMA WRITE request")
Link: https://lore.kernel.org/r/20191025195836.106825.77769.stgit@awfm-01.aw.intel.com
Cc: <stable@vger.kernel.org>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-11-06 13:15:36 -04:00
arch powerpc fixes for 5.4 #4 2019-11-02 11:08:19 -07:00
block iocost: don't nest spin_lock_irq in ioc_weight_write() 2019-10-31 11:40:57 -06:00
certs
crypto
Documentation Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-01 17:48:11 -07:00
drivers IB/hfi1: Calculate flow weight based on QP MTU for TID RDMA 2019-11-06 13:15:36 -04:00
fs a small smb3 memleak fix 2019-11-02 14:34:00 -07:00
include Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-01 17:48:11 -07:00
init
ipc
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-01 17:48:11 -07:00
lib lib/vdso: Make clock_getres() POSIX compliant again 2019-10-23 14:48:23 +02:00
LICENSES
mm mm/thp: allow dropping THP from page cache 2019-10-19 06:32:33 -04:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-01 17:48:11 -07:00
samples
scripts Modules fixes for v5.4-rc5 2019-10-25 16:11:55 -04:00
security efi/efi_test: Lock down /dev/efi_test and require CAP_SYS_ADMIN 2019-10-31 09:40:21 +01:00
sound ALSA: timer: Fix mutex deadlock at releasing card 2019-10-30 22:54:56 +01:00
tools USB fixes for 5.4-rc6 2019-11-03 08:25:25 -08:00
usr
virt kvm: call kvm_arch_destroy_vm if vm creation fails 2019-10-31 12:13:16 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap A few MIPS fixes: 2019-10-26 19:43:12 -04:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-01 17:48:11 -07:00
Makefile Linux 5.4-rc6 2019-11-03 14:07:26 -08:00
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.