From: David Miller <davem@redhat.com>
To: cmetcalf@tilera.com
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH 09/12] tile: support TSO for IPv6 in tilegx network driver
Date: Wed, 31 Jul 2013 12:25:34 -0700 (PDT) [thread overview]
Message-ID: <20130731.122534.774117327230299927.davem@redhat.com> (raw)
In-Reply-To: <799eca39dc7f85ba12e1d8c5b072f8b6740fda1c.1375283106.git.cmetcalf@tilera.com>
From: Chris Metcalf <cmetcalf@tilera.com>
Date: Wed, 31 Jul 2013 11:05:04 -0400
> @@ -1950,6 +1963,7 @@ static void tile_net_setup(struct net_device *dev)
> dev->features |= NETIF_F_HW_CSUM;
> dev->features |= NETIF_F_SG;
> dev->features |= NETIF_F_TSO;
> + dev->features |= NETIF_F_TSO6;
> dev->mtu = 1500;
This driver is severely out of date wrt. how to properly advertise
device features, and you really need to fix this _before_ adding
support for new capabilities.
dev->hw_features specifies what the device is capable of, whereas
dev->features specifies what features are currently enabled.
Using these two values we determine what feature bits the user
can configure on and off using generic code which checks
dev->hw_features when the user makes a request.
You'll also want to have a look at netdev_ops->ndo_fix_features
and netdev_ops->ndo_set_features which allow a driver to handle
attempts to install illegal combinations of features.
You can look at other well maintained drivers to see how this
works.
Thanks.
next prev parent reply other threads:[~2013-07-31 19:25 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-23 20:05 [PATCH 00/13] update tile network drivers Chris Metcalf
2013-07-23 20:05 ` [PATCH 04/13] tile: remove dead is_dup_ack() function from tilepro net driver Chris Metcalf
2013-07-23 20:05 ` [PATCH 03/13] tile: avoid bug in tilepro net driver built with old hypervisor Chris Metcalf
2013-07-23 20:05 ` [PATCH 11/13] tile: support TSO for IPv6 in tilegx network driver Chris Metcalf
2013-07-23 20:05 ` [PATCH 02/13] tile: support rx_dropped/rx_errors in tilepro net driver Chris Metcalf
2013-07-23 20:05 ` [PATCH 08/13] tile: fix panic bug in napi support for tilegx network driver Chris Metcalf
2013-07-23 20:05 ` [PATCH 01/13] tile: handle 64-bit statistics in tilepro " Chris Metcalf
2013-07-24 9:31 ` David Miller
2013-07-25 16:41 ` [PATCH v2] " Chris Metcalf
2013-07-30 23:16 ` David Miller
2013-07-31 0:34 ` Chris Metcalf
2013-07-31 0:36 ` David Miller
2013-07-23 20:05 ` [PATCH 07/13] tile: update dev->stats directly in tilegx " Chris Metcalf
2013-07-23 20:05 ` [PATCH 05/13] tile: support PTP using the tilegx mPIPE (IEEE 1588) Chris Metcalf
2013-07-24 6:25 ` Richard Cochran
2013-07-24 6:29 ` Richard Cochran
2013-07-24 16:17 ` Chris Metcalf
2013-07-25 15:19 ` [PATCH v2] " Chris Metcalf
2013-07-25 17:55 ` Richard Cochran
2013-07-23 20:05 ` [PATCH 09/13] tile: enable GRO in the tilegx network driver Chris Metcalf
2013-07-23 21:19 ` Eric Dumazet
2013-07-23 22:26 ` Chris Metcalf
2013-07-23 20:05 ` [PATCH 12/13] tile: make "tile_net.custom" a proper bool module parameter Chris Metcalf
2013-07-23 20:05 ` [PATCH 10/13] tile: support multiple mPIPE shims in tilegx network driver Chris Metcalf
2013-07-23 20:05 ` [PATCH 13/13] tile: remove deprecated NETIF_F_LLTX flag from tile drivers Chris Metcalf
2013-07-23 20:05 ` [PATCH 06/13] tile: support jumbo frames in the tilegx network driver Chris Metcalf
2013-07-31 15:05 ` [PATCH v2 00/12] update tile network drivers Chris Metcalf
2013-07-31 15:05 ` [PATCH 03/12] tile: remove dead is_dup_ack() function from tilepro net driver Chris Metcalf
2013-07-31 15:05 ` [PATCH 04/12] tile: support jumbo frames in the tilegx network driver Chris Metcalf
2013-07-31 15:05 ` [PATCH 06/12] tile: fix panic bug in napi support for " Chris Metcalf
2013-07-31 15:05 ` [PATCH 01/12] tile: support rx_dropped/rx_errors in tilepro net driver Chris Metcalf
2013-07-31 15:05 ` [PATCH 11/12] tile: remove deprecated NETIF_F_LLTX flag from tile drivers Chris Metcalf
2013-07-31 15:05 ` [PATCH 12/12] tile: support PTP using the tilegx mPIPE (IEEE 1588) Chris Metcalf
2013-07-31 15:05 ` [PATCH 10/12] tile: make "tile_net.custom" a proper bool module parameter Chris Metcalf
2013-07-31 15:05 ` [PATCH 07/12] tile: enable GRO in the tilegx network driver Chris Metcalf
2013-07-31 15:05 ` [PATCH 09/12] tile: support TSO for IPv6 in " Chris Metcalf
2013-07-31 19:25 ` David Miller [this message]
2013-08-01 15:36 ` [PATCH v2 13/12] tile: set hw_features and vlan_features in setup Chris Metcalf
2013-08-01 18:31 ` David Miller
2013-08-01 19:25 ` [PATCH v3 00/13] update tile network drivers Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 02/13] tile: support rx_dropped/rx_errors in tilepro net driver Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 06/13] tile: update dev->stats directly in tilegx network driver Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 08/13] tile: enable GRO in the " Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 09/13] tile: support multiple mPIPE shims in " Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 05/13] tile: support jumbo frames in the " Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 04/13] tile: remove dead is_dup_ack() function from tilepro net driver Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 03/13] tile: avoid bug in tilepro net driver built with old hypervisor Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 13/13] tile: support PTP using the tilegx mPIPE (IEEE 1588) Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 10/13] tile: support TSO for IPv6 in tilegx network driver Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 12/13] tile: remove deprecated NETIF_F_LLTX flag from tile drivers Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 01/13] tile: set hw_features and vlan_features in setup Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 07/13] tile: fix panic bug in napi support for tilegx network driver Chris Metcalf
2013-08-01 15:36 ` [PATCH v3 11/13] tile: make "tile_net.custom" a proper bool module parameter Chris Metcalf
2013-08-01 21:42 ` [PATCH v3 00/13] update tile network drivers David Miller
2013-07-31 15:05 ` [PATCH 08/12] tile: support multiple mPIPE shims in tilegx network driver Chris Metcalf
2013-07-31 15:05 ` [PATCH 02/12] tile: avoid bug in tilepro net driver built with old hypervisor Chris Metcalf
2013-07-31 15:05 ` [PATCH 05/12] tile: update dev->stats directly in tilegx network driver Chris Metcalf
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