From: David Miller <davem@davemloft.net>
To: haiyangz@microsoft.com
Cc: netdev@vger.kernel.org, kys@microsoft.com, olaf@aepfle.de,
jasowang@redhat.com, linux-kernel@vger.kernel.org,
driverdev-devel@linuxdriverproject.org
Subject: Re: [PATCH net-next] hyperv: Add processing of MTU reduced by the host
Date: Wed, 12 Nov 2014 15:04:23 -0500 (EST) [thread overview]
Message-ID: <20141112.150423.1660890641226643870.davem@davemloft.net> (raw)
In-Reply-To: <ecc2fd8e646147fabb30d3120c889431@DFM-DB3MBX15-06.exchange.corp.microsoft.com>
From: Haiyang Zhang <haiyangz@microsoft.com>
Date: Wed, 12 Nov 2014 20:02:11 +0000
> The Hyper-V host doesn't support MTU below 1500. If we try setting MTU to a
> value < 1500, the host will use 1500 automatically and return 1500 in the
> RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE query and guest will also use it. That's
> why I set the lower limit to ETH_DATA_LEN.
>
> Are you suggesting that we keep the 68 as the lower limit, and let the host
> auto-reset it to 1500 when we trying to set an MTU < 1500?
Then you need to add a comment, because without any information or
context that change looks wrong.
next prev parent reply other threads:[~2014-11-12 20:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-11 23:27 [PATCH net-next] hyperv: Add processing of MTU reduced by the host Haiyang Zhang
2014-11-12 19:46 ` David Miller
2014-11-12 20:02 ` Haiyang Zhang
2014-11-12 20:04 ` David Miller [this message]
2014-11-12 20:31 ` Haiyang Zhang
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