netdev - set mtu size broken for dwmac-sun8i

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 for Android: free password hash cracker in your pocket

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

Message-ID: <CAAfyv37z0ny=JGsRrVwkzoOd3RNb_j-rQii65a0e2+KMt-YM3A@mail.gmail.com>
Date:   Wed, 17 Mar 2021 10:19:26 +0100
From:   Belisko Marek <marek.belisko@...il.com>
To:     netdev <netdev@...r.kernel.org>
Subject: set mtu size broken for dwmac-sun8i

Hi,

I'm hunting an issue when setting mtu failed for dwmac-sun8i driver.
Basically adding more debug shows that in stmmac_change_mtu
tx_fifo_size is 0 and in this case EINVAL is reported. Isaw there was
fix for similar driver dwmac-sunxi driver by:
806fd188ce2a4f8b587e83e73c478e6484fbfa55

IIRC dwmac-sun8i should get tx and rx fifo size from dma but seems
it's not the case. I'm using 5.4 kernel LTS release. Any ideas?

Thanks and BR,

marek

-- 
as simple and primitive as possible
-------------------------------------------------
Marek Belisko - OPEN-NANDRA
Freelance Developer

Ruska Nova Ves 219 | Presov, 08005 Slovak Republic
Tel: +421 915 052 184
skype: marekwhite
twitter: #opennandra
web: http://open-nandra.com