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Re: e100 "Ferguson" release

To: "David S. Miller" <davem@xxxxxxxxxx>
Subject: Re: e100 "Ferguson" release
From: David Brownell <david-b@xxxxxxxxxxx>
Date: Mon, 04 Aug 2003 10:38:17 -0700
Cc: greearb@xxxxxxxxxxxxxxx, jgarzik@xxxxxxxxx, scott.feldman@xxxxxxxxx, netdev@xxxxxxxxxxx
In-reply-to: <20030803211333.12839f66.davem@redhat.com>
References: <C6F5CF431189FA4CBAEC9E7DD5441E010222927D@orsmsx402.jf.intel.com> <3F2CA65F.8060105@pobox.com> <3F2CBA71.2070503@candelatech.com> <20030803003239.4257ef24.davem@redhat.com> <3F2DCE56.6030601@pacbell.net> <20030803200851.7d46a605.davem@redhat.com> <3F2DD6BD.7070504@pacbell.net> <20030803204642.684c6075.davem@redhat.com> <3F2DDC3A.2040707@pacbell.net> <20030803211333.12839f66.davem@redhat.com>
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David S. Miller wrote:

For example, what do USB block device drivers do when -ENOMEM comes back? Do they just drop the request on the floor? No, rather they resubmit the request later without the scsi/block layer knowing anything about what happened, right?

I didn't notice any code to retry, but I did see some that morphed ENOMEM into a generic scsi "error". Scsi presumably does something more or less intelligent then.

The network layer on the other hand _does_ have hooks for retrying,
not that they're used much.

- Dave





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