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Emeel Hakim d10457f85d net/mlx5e: IPsec: Fix a misuse of the software parser's fields
IPsec crypto offload current Software Parser (SWP) fields settings in
the ethernet segment (eseg) are not aligned with PRM/HW expectations.
Among others in case of IP|ESP|TCP packet, current driver sets the
offsets for inner_l3 and inner_l4 although there is no inner l3/l4
headers relative to ESP header in such packets.

SWP provides the offsets for HW ,so it can be used to find csum fields
to offload the checksum, however these are not necessarily used by HW
and are used as fallback in case HW fails to parse the packet, e.g
when performing IPSec Transport Aware (IP | ESP | TCP) there is no
need to add SW parse on inner packet. So in some cases packets csum
was calculated correctly , whereas in other cases it failed. The later
faced csum errors (caused by wrong packet length calculations) which
led to lots of packet drops hence the low throughput.

Fix by setting the SWP fields as expected in a IP|ESP|TCP packet.

the following describe the expected SWP offsets:
* Tunnel Mode:
* SWP:      OutL3       InL3  InL4
* Pkt: MAC  IP     ESP  IP    L4
*
* Transport Mode:
* SWP:      OutL3       OutL4
* Pkt: MAC  IP     ESP  L4
*
* Tunnel(VXLAN TCP/UDP) over Transport Mode
* SWP:      OutL3                   InL3  InL4
* Pkt: MAC  IP     ESP  UDP  VXLAN  IP    L4

Fixes: f1267798c9 ("net/mlx5: Fix checksum issue of VXLAN and IPsec crypto offload")
Signed-off-by: Emeel Hakim <ehakim@nvidia.com>
Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-10-20 10:42:50 -07:00
arch Networking fixes for 5.15-rc6. 2021-10-14 18:21:39 -04:00
block block-5.15-2021-10-09 2021-10-09 14:51:59 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-08-30 12:57:10 -07:00
Documentation mctp: unify sockaddr_mctp types 2021-10-18 13:47:09 +01:00
drivers net/mlx5e: IPsec: Fix a misuse of the software parser's fields 2021-10-20 10:42:50 -07:00
fs for-5.15-rc5-tag 2021-10-11 16:48:19 -07:00
include net/mlx5: Lag, change multipath and bonding to be mutually exclusive 2021-10-20 10:42:49 -07:00
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ipc ipc: remove memcg accounting for sops objects in do_semtimedop() 2021-09-14 10:22:11 -07:00
kernel Modules fix for v5.15-rc6 2021-10-13 07:42:07 -07:00
lib linux-kselftest-kunit-fixes-5.15-rc6 2021-10-11 17:25:08 -07:00
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mm mm: fix uninitialized use in overcommit_policy_handler 2021-09-24 16:13:35 -07:00
net net: dsa: Fix an error handling path in 'dsa_switch_parse_ports_of()' 2021-10-19 15:41:16 -07:00
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scripts linux-kselftest-kunit-fixes-5.15-rc6 2021-10-11 17:25:08 -07:00
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sound ALSA: usb-audio: Add quirk for VF0770 2021-10-12 22:13:11 +02:00
tools selftests/tls: add SM4 algorithm dependency for tls selftests 2021-10-18 13:52:11 +01:00
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Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
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MAINTAINERS Networking fixes for 5.15-rc6. 2021-10-14 18:21:39 -04:00
Makefile Linux 5.15-rc5 2021-10-10 17:01:59 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.