From: Michael Brown <mcb30@ipxe.org>
To: Wasim Khan <wasim.khan@nxp.com>, Laszlo Ersek <lersek@redhat.com>,
Pankaj Bansal <pankaj.bansal@nxp.com>
Cc: "edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Subject: Re: Boot delay due to network devices
Date: Fri, 23 Mar 2018 12:22:19 +0000 [thread overview]
Message-ID: <e062c64e-3307-4bce-c06e-a996b093ad21@ipxe.org> (raw)
In-Reply-To: <HE1PR0401MB23467BC1183C8B0591BC464590A80@HE1PR0401MB2346.eurprd04.prod.outlook.com>
On 23/03/18 11:58, Wasim Khan wrote:
> Ex: if auto-neg timeout is 5 seconds and if we have 10 network interfaces (all are legal candidate for booting), and cable is connected to 3rd interface only then 45 seconds will be wasted (5 seconds each for 9 interfaces) in auto-neg of interfaces which are not connected via cable.
There is no need for drivers to block in the Start() method waiting for
link-up detection. Link detection can happen entirely asynchronously,
thereby reducing your wasted time from 45 seconds to zero.
Michael
next prev parent reply other threads:[~2018-03-23 12:15 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-06 9:23 Boot delay due to network devices Pankaj Bansal
2017-10-06 9:47 ` Laszlo Ersek
2017-10-06 11:07 ` Pankaj Bansal
2017-10-06 13:09 ` Laszlo Ersek
2018-03-23 11:58 ` Wasim Khan
2018-03-23 12:22 ` Michael Brown [this message]
2018-03-23 13:01 ` Wasim Khan
2018-03-23 14:28 ` Laszlo Ersek
2018-03-23 14:02 ` Laszlo Ersek
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