netdev - Re: [PATCH net-next v2 3/3] selftests: drv-net: add a simple TSO test

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <67b0a9c6ae5bf_36e3442944f@willemb.c.googlers.com.notmuch>
Date: Sat, 15 Feb 2025 09:50:46 -0500
From: Willem de Bruijn <willemdebruijn.kernel@...il.com>
To: Jakub Kicinski <kuba@...nel.org>, 
 davem@...emloft.net
Cc: netdev@...r.kernel.org, 
 edumazet@...gle.com, 
 pabeni@...hat.com, 
 andrew+netdev@...n.ch, 
 horms@...nel.org, 
 willemdebruijn.kernel@...il.com, 
 petrm@...dia.com, 
 stfomichev@...il.com, 
 Jakub Kicinski <kuba@...nel.org>
Subject: Re: [PATCH net-next v2 3/3] selftests: drv-net: add a simple TSO test

Jakub Kicinski wrote:
> Add a simple test for TSO. Send a few MB of data and check device
> stats to verify that the device was performing segmentation.
> Do the same thing over a few tunnel types.
> 
> Injecting GSO packets directly would give us more ability to test
> corner cases, but perhaps starting simple is good enough?
> 
>   # ./ksft-net-drv/drivers/net/hw/tso.py
>   # Detected qstat for LSO wire-packets
>   KTAP version 1
>   1..14
>   ok 1 tso.ipv4 # SKIP Test requires IPv4 connectivity
>   ok 2 tso.vxlan4_ipv4 # SKIP Test requires IPv4 connectivity
>   ok 3 tso.vxlan6_ipv4 # SKIP Test requires IPv4 connectivity
>   ok 4 tso.vxlan_csum4_ipv4 # SKIP Test requires IPv4 connectivity
>   ok 5 tso.vxlan_csum6_ipv4 # SKIP Test requires IPv4 connectivity
>   ok 6 tso.gre4_ipv4 # SKIP Test requires IPv4 connectivity
>   ok 7 tso.gre6_ipv4 # SKIP Test requires IPv4 connectivity
>   ok 8 tso.ipv6
>   ok 9 tso.vxlan4_ipv6
>   ok 10 tso.vxlan6_ipv6
>   ok 11 tso.vxlan_csum4_ipv6
>   ok 12 tso.vxlan_csum6_ipv6
>   ok 13 tso.gre4_ipv6
>   ok 14 tso.gre6_ipv6
>   # Totals: pass:7 fail:0 xfail:0 xpass:0 skip:7 error:0
> 
> Note that the test currently depends on the driver reporting
> the LSO count via qstat, which appears to be relatively rare
> (virtio, cisco/enic, sfc/efc; but virtio needs host support).
> 
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>

Reviewed-by: Willem de Bruijn <willemb@...gle.com>