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Sanjuán García, Jorge 64e47d8afb net: ethernet: ti: am65-cpsw: Fix max mtu to fit ethernet frames 
The value of AM65_CPSW_MAX_PACKET_SIZE represents the maximum length
of a received frame. This value is written to the register
AM65_CPSW_PORT_REG_RX_MAXLEN.

The maximum MTU configured on the network device should then leave
some room for the ethernet headers and frame check. Otherwise, if
the network interface is configured to its maximum mtu possible,
the frames will be larger than AM65_CPSW_MAX_PACKET_SIZE and will
get dropped as oversized.

The switch supports ethernet frame sizes between 64 and 2024 bytes
(including VLAN) as stated in the technical reference manual, so
define AM65_CPSW_MAX_PACKET_SIZE with that maximum size.

Fixes: 93a7653031 ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver")
Signed-off-by: Jorge Sanjuan Garcia <jorge.sanjuangarcia@duagon.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Link: https://lore.kernel.org/r/20240105085530.14070-2-jorge.sanjuangarcia@duagon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-11 16:54:45 -08:00
arch Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
block Many singleton patches against the MM code. The patch series which 2024-01-09 11:18:47 -08:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto crypto: scomp - fix req->dst buffer overflow 2023-12-29 11:25:56 +08:00
Documentation Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
drivers net: ethernet: ti: am65-cpsw: Fix max mtu to fit ethernet frames 2024-01-11 16:54:45 -08:00
fs Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
include Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
init header cleanups for 6.8 2024-01-10 16:43:55 -08:00
io_uring Many singleton patches against the MM code. The patch series which 2024-01-09 11:18:47 -08:00
ipc shm: Slim down dependencies 2023-12-20 19:26:31 -05:00
kernel Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
lib Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
net Revert "net: rtnetlink: Enslave device before bringing it up" 2024-01-11 16:47:40 -08:00
rust net: phy: add Rust Asix PHY driver 2023-12-15 09:35:50 +00:00
samples Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
scripts Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
security header cleanups for 6.8 2024-01-10 16:43:55 -08:00
sound linux_kselftest-kunit-6.8-rc1 2024-01-09 17:16:58 -08:00
tools selftests: rtnetlink: check enslaving iface in a bond 2024-01-11 16:47:40 -08:00
usr usr/Kconfig: fix typos of "its" 2023-12-20 15:02:58 -08:00
virt vfs-6.8.misc 2024-01-08 10:26:08 -08:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: generate kernel.spec in rpmbuild/SPECS/ 2023-10-03 20:49:09 +09:00
.mailmap Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: mark ax25 as Orphan 2024-01-11 16:25:04 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: ibmvnic: drop Dany from reviewers 2024-01-11 16:25:04 -08:00
Makefile Quite a lot of kexec work this time around. Many singleton patches in 2024-01-09 11:46:20 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.