netdev - Re: Gentoo Linux 5.x

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Date:   Tue, 1 Oct 2019 11:17:44 -0700
From:   Michael Chan <michael.chan@...adcom.com>
To:     Rudolf Spring <rudolf.spring@...il.com>
Cc:     Siva Reddy Kallam <siva.kallam@...adcom.com>,
        Netdev <netdev@...r.kernel.org>
Subject: Re: Gentoo Linux 5.x - Tigon3

On Tue, Oct 1, 2019 at 7:31 AM Rudolf Spring <rudolf.spring@...il.com> wrote:
>
> Hello - Since Kernel Version 5.0 (5.0.x/5.1.x/5.2.x and now 5.3.x) my BCM57765 refuses to work correctly. The same system configuration works without problems on the latest stable Gentoo 4.19.72 Kernel. So the changes from 4.19 to 5.0 include some code that is responsible for the hick-up.

These are all the tg3 changes between 4.19 and 5.0:

750afb08ca71 cross-tree: phase out dma_zalloc_coherent()
cddaf02bcb73 tg3: optionally use eth_platform_get_mac_address() to get
mac address
3c1bcc8614db net: ethernet: Convert phydev advertize and supported
from u32 to link mode
6fe42e228dc2 tg3: extend PTP gettime function to read system clock
310fc0513ea9 tg3: Fix fall-through annotations
22b7d29926b5 net: ethernet: Add helper to determine if pause
configuration is supported
70814e819c11 net: ethernet: Add helper for set_pauseparam for Asym Pause
af8d9bb2f2f4 net: ethernet: Add helper for MACs which support asym pause
04b7d41d8046 net: ethernet: Fix up drivers masking pause support
58056c1e1b0e net: ethernet: Use phy_set_max_speed() to limit advertised speed

Most of the changes are related to PHY settings.  I suggest that you
check the link settings, including speed, pause, asym pause, etc
between the working kernel and the non-working kernel to see if there
are differences in the settings.