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Filename Latest commit message Latest commit date
Simon Guinot 0d63785c6b net: mvneta: fix handling of the Tx descriptor counter
The mvneta controller provides a 8-bit register to update the pending
Tx descriptor counter. Then, a maximum of 255 Tx descriptors can be
added at once. In the current code the mvneta_txq_pend_desc_add function
assumes the caller takes care of this limit. But it is not the case. In
some situations (xmit_more flag), more than 255 descriptors are added.
When this happens, the Tx descriptor counter register is updated with a
wrong value, which breaks the whole Tx queue management.

This patch fixes the issue by allowing the mvneta_txq_pend_desc_add
function to process more than 255 Tx descriptors.

Fixes: 2a90f7e1d5 ("net: mvneta: add xmit_more support")
Cc: stable@vger.kernel.org # 4.11+
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-14 21:52:25 +09:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-12 09:17:05 +09:00
block
certs
crypto
Documentation net: Mention net-next status web page in netdev-FAQ.txt 2017-11-14 21:11:57 +09:00
drivers net: mvneta: fix handling of the Tx descriptor counter 2017-11-14 21:52:25 +09:00
firmware
fs
include netlink: remove unused NETLINK SKB flags 2017-11-14 21:51:14 +09:00
init
ipc
kernel bpf: change helper bpf_probe_read arg2 type to ARG_CONST_SIZE_OR_ZERO 2017-11-14 16:20:03 +09:00
lib net: netlink: Update attr validation to require exact length for some types 2017-11-11 15:14:38 +09:00
mm
net netlink: remove unnecessary forward declaration 2017-11-14 21:51:14 +09:00
samples bpf: Revert bpf_overrid_function() helper changes. 2017-11-11 18:24:55 +09:00
scripts
security
sound
tools bpf: fix and add test cases for ARG_CONST_SIZE_OR_ZERO semantics change 2017-11-14 16:20:03 +09:00
usr
virt
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild
Kconfig
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-12 09:17:05 +09:00
Makefile
README

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.