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Shyam Sundar S K 286fca3f30 net: amd-xgbe: Reset link when the link never comes back 
[ Upstream commit 84fe68eb67f9499309cffd97c1ba269de125ff14 ]

Normally, auto negotiation and reconnect should be automatically done by
the hardware. But there seems to be an issue where auto negotiation has
to be restarted manually. This happens because of link training and so
even though still connected to the partner the link never "comes back".
This needs an auto-negotiation restart.

Also, a change in xgbe-mdio is needed to get ethtool to recognize the
link down and get the link change message. This change is only
required in a backplane connection mode.

Fixes: abf0a1c2b2 ("amd-xgbe: Add support for SFP+ modules")
Co-developed-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04 11:37:35 +01:00
arch ARM: at91: use proper asm syntax in pm_suspend 2021-03-04 11:37:28 +01:00
block bfq: Avoid false bfq queue merging 2021-03-04 11:37:18 +01:00
certs
crypto crypto: xor - Fix divide error in do_xor_speed() 2021-01-27 11:54:52 +01:00
Documentation scsi: libsas: docs: Remove notify_ha_event() 2021-03-04 11:37:17 +01:00
drivers net: amd-xgbe: Reset link when the link never comes back 2021-03-04 11:37:35 +01:00
fs debugfs: do not attempt to create a new file before the filesystem is initalized 2021-03-04 11:37:17 +01:00
include tcp: fix SO_RCVLOWAT related hangs under mem pressure 2021-03-04 11:37:33 +01:00
init fgraph: Initialize tracing_graph_pause at task creation 2021-02-10 09:29:16 +01:00
ipc
kernel bpf: Clear subreg_def for global function return values 2021-03-04 11:37:34 +01:00
lib udp: fix skb_copy_and_csum_datagram with odd segment sizes 2021-02-17 11:02:28 +01:00
LICENSES
mm mm: provide a saner PTE walking API for modules 2021-02-26 10:13:01 +01:00
net bpf: Fix bpf_fib_lookup helper MTU check for SKB ctx 2021-03-04 11:37:33 +01:00
samples
scripts scripts/recordmcount.pl: support big endian for ARCH sh 2021-02-26 10:13:02 +01:00
security cap: fix conversions on getxattr 2021-02-17 11:02:22 +01:00
sound ALSA: pcm: Don't call sync_stop if it hasn't been stopped 2021-03-04 11:37:19 +01:00
tools selftests: mptcp: fix ACKRX debug message 2021-03-04 11:37:33 +01:00
usr
virt KVM: Use kvm_pfn_t for local PFN variable in hva_to_pfn_remapped() 2021-02-26 10:13:01 +01:00
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Makefile Linux 5.10.19 2021-02-26 10:14:35 +01:00
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.