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From: Andrew Lunn <andrew@lunn.ch>
To: Alexandra Winter <wintera@linux.ibm.com>
Cc: David Miller <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	netdev@vger.kernel.org, linux-s390@vger.kernel.org,
	Heiko Carstens <hca@linux.ibm.com>,
	Thorsten Winkler <twinkler@linux.ibm.com>
Subject: Re: [PATCH net 1/2] s390/qeth: update cached link_info for ethtool
Date: Wed, 3 Aug 2022 17:19:12 +0200	[thread overview]
Message-ID: <YuqR8HGEe2vWsxNz@lunn.ch> (raw)
In-Reply-To: <20220803144015.52946-2-wintera@linux.ibm.com>

On Wed, Aug 03, 2022 at 04:40:14PM +0200, Alexandra Winter wrote:
> Speed, duplex, port type and link mode can change, after the physical link
> goes down (STOPLAN) or the card goes offline

If the link is down, speed, and duplex are meaningless. They should be
set to DUPLEX_UNKNOWN, SPEED_UNKNOWN. There is no PORT_UNKNOWN, but
generally, it does not change on link up, so you could set this
depending on the hardware type.

	Andrew

  reply	other threads:[~2022-08-03 15:19 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-03 14:40 [PATCH net 0/2] s390/qeth: cache link_info for ethtool Alexandra Winter
2022-08-03 14:40 ` [PATCH net 1/2] s390/qeth: update cached " Alexandra Winter
2022-08-03 15:19   ` Andrew Lunn [this message]
2022-08-04  8:53     ` Alexandra Winter
2022-08-04 13:08       ` Andrew Lunn
2022-08-04 13:44         ` Alexandra Winter
2022-08-04 20:27         ` Jakub Kicinski
2022-08-05  7:05           ` Alexandra Winter
2022-08-05 21:29             ` Jakub Kicinski
2022-08-03 14:40 ` [PATCH net 2/2] s390/qeth: use " Alexandra Winter

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