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From: Roland Dreier <rdreier@cisco.com>
To: David Miller <davem@davemloft.net>
Cc: mst@mellanox.co.il, shemminger@osdl.org,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	openib-general@openib.org, rolandd@cisco.com
Subject: Re: Dropping NETIF_F_SG since no checksum feature.
Date: Tue, 10 Oct 2006 20:49:09 -0700	[thread overview]
Message-ID: <adafydvbjgq.fsf@cisco.com> (raw)
In-Reply-To: <20061010.204528.90823856.davem@davemloft.net> (David Miller's message of "Tue, 10 Oct 2006 20:45:28 -0700 (PDT)")

    David> non-sendfile() paths will generate big packets just fine,
    David> as long as the application is providing that much data.

OK, cool.  Will the big packets be non-linear skbs?

Because then it would make sense for a device with a huge MTU to want
to accept them without linearizing them, even if it had to copy them
to checksum the data.  Otherwise with fragmented memory it would be
impossible to handle such big packets at all.

 - R.

  reply	other threads:[~2006-10-11  3:49 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-09 17:47 Dropping NETIF_F_SG since no checksum feature Michael S. Tsirkin
2006-10-09 16:50 ` Stephen Hemminger
2006-10-10 14:43   ` Michael S. Tsirkin
2006-10-10 17:43     ` Stephen Hemminger
2006-10-11  0:13       ` Michael S. Tsirkin
2006-10-11  0:15         ` Roland Dreier
2006-10-11  0:26           ` Michael S. Tsirkin
2006-10-11  3:33             ` Roland Dreier
2006-10-11  3:36               ` David Miller
2006-10-11  3:42                 ` Roland Dreier
2006-10-11  3:45                   ` David Miller
2006-10-11  3:49                     ` Roland Dreier [this message]
2006-10-11  3:50                       ` David Miller
2006-10-11  2:15         ` David Miller
2006-10-11  9:05           ` Michael S. Tsirkin
2006-10-11  9:09             ` Steven Whitehouse
2006-10-11 15:01               ` Michael S. Tsirkin
2006-10-11 20:11                 ` Steven Whitehouse
2006-10-11 20:52                   ` Michael S. Tsirkin
2006-10-11 20:57                   ` Stephen Hemminger
2006-10-11 21:23                     ` Michael S. Tsirkin
2006-10-11 21:29                       ` Stephen Hemminger
2006-10-11 21:42                         ` Michael S. Tsirkin
2006-10-11 21:41                       ` David Miller
2006-10-12 19:12                         ` Michael S. Tsirkin
2006-10-13  4:22                           ` David Miller
2006-10-13  6:17                             ` Michael S. Tsirkin
2006-10-11 20:52                 ` David Miller
2006-10-11 21:11                   ` Michael S. Tsirkin
2006-10-11  9:20             ` David Miller
2006-10-11  9:46               ` Michael S. Tsirkin
2006-10-11 18:21                 ` [openib-general] " Michael Krause
2006-10-11 13:11               ` [RFC] Question about potential problem in net/ipv4/route.c Eric Dumazet
2006-10-12  5:05                 ` David Miller
2006-10-12  5:31                   ` Patrick McHardy
2006-10-12  5:54                     ` David Miller
2006-10-12  5:48                   ` Eric Dumazet
2006-10-12  6:02                     ` David Miller
2006-10-12  6:10                       ` Patrick McHardy
2006-10-12  6:25                         ` David Miller
2006-10-12  6:35                       ` Eric Dumazet
2006-10-12  7:48                         ` David Miller
2006-10-16  9:00                 ` [PATCH] NET : Suspicious locking in reqsk_queue_hash_req() Eric Dumazet
2006-10-16  9:07                   ` Eric Dumazet
2006-10-16 16:16                     ` Arnaldo Carvalho de Melo
2006-10-16 16:56                       ` Eric Dumazet
2006-10-16 17:39                         ` Eric Dumazet
2006-10-16 20:41                   ` David Miller

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