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Message-Id: <20210330021651.30906-1-grundler@chromium.org>
Date: Mon, 29 Mar 2021 19:16:47 -0700
From: Grant Grundler <grundler@...omium.org>
To: Oliver Neukum <oneukum@...e.com>, Jakub Kicinski <kuba@...nel.org>
Cc: Roland Dreier <roland@...nel.org>, nic_swsd <nic_swsd@...ltek.com>,
netdev <netdev@...r.kernel.org>,
"David S . Miller" <davem@...emloft.net>,
LKML <linux-kernel@...r.kernel.org>,
Andrew Lunn <andrew@...n.ch>,
Grant Grundler <grundler@...omium.org>
Subject: [PATCHv4 0/4] usbnet: speed reporting for devices without MDIO
This series introduces support for USB network devices that report
speed as a part of their protocol, not emulating an MII to be accessed
over MDIO.
v2: rebased on recent upstream changes
v3: incorporated hints on naming and comments
v4: fix misplaced hunks; reword some commit messages;
add same change for cdc_ether
I'm reposting Oliver Neukum's <oneukum@...e.com> patch series with
fix ups for "misplaced hunks" (landed in the wrong patches).
Please fixup the "author" if "git am" fails to attribute the
patches 1-3 (of 4) to Oliver.
I've tested v4 series with "5.12-rc3+" kernel on Intel NUC6i5SYB
and + Sabrent NT-S25G. Google Pixelbook Go (chromeos-4.4 kernel)
+ Alpha Network AUE2500C were connected directly to the NT-S25G
to get 2.5Gbps link rate:
# ethtool enx002427880815
Settings for enx002427880815:
Supported ports: [ ]
Supported link modes: Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: 2500Mb/s
Duplex: Half
Auto-negotiation: off
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
MDI-X: Unknown
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
"Duplex" is a lie since we get no information about it.
I expect "Auto-Negotiation" is always true for cdc_ncm and
cdc_ether devices and perhaps someone knows offhand how
to have ethtool report "true" instead.
But this is good step in the right direction.
base-commit: 1c273e10bc0cc7efb933e0ca10e260cdfc9f0b8c
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