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Date: Tue, 5 Apr 2011 17:44:05 -0700
From: Mahesh Bandewar <maheshb@...gle.com>
To: David Miller <davem@...emloft.net>
Cc: netdev <netdev@...r.kernel.org>,
Mahesh Bandewar <maheshb@...gle.com>
Subject: [PATCH 00/20] extending (hw_/wanted_/vlan_)features fields to a bitmap.
Extend "*features" from word to a BITMAP. This will eliminate the current upper
bound. Also making it a bitmap will allow us to use (set/test/clear)_bit()
macros/inline functions. So operation -
dev->features |= NETIF_F_SG
can be performed like-
set_bit(NETIF_F_SG_BIT, dev->feature);
Again it's not as easy as it looks since operations like -
bitmap = bitmap-a & bitmap-b
will be difficult but at the same time it would be imposible to use |=
operations for multi-word flags too. Bitmap will make it easier to manage
multi-word features but will need some macro / wrapper writing to achieve
complex bit manipulations.
Since the use of "features" is wide-spread, this can not be done in one shot.
So breaking the work into following 4 steps of which first two steps will be
achieved by this patch. Third step is the one which will take longer.
(1) convert hw_features and wanted_features to a bitmap but maintain the
backword compatibility with legacy_* option.
(2) Define fake macros for vlan_features and features until all the work of
converion is not complete.
(3) Complete the conversion.
(4) Define bitmaps for features and vlan_features.
We can add step (5) which is to convert the use of legacy_* stuff and use the
newer way only.
Mahesh Bandewar (20):
net-core: extending (hw_/wanted_/vlan_)features fields to a bitmap.
net-ipv4: extending (hw_/wanted_/vlan_)features fields to a bitmap.
net-ipv6: extending (hw_/wanted_/vlan_)features fields to a bitmap.
net-vlan: extending (hw_/wanted_/vlan_)features fields to a bitmap.
net-bridge: extending (hw_/wanted_/vlan_)features fields to a bitmap.
net-decnet: extending (hw_/wanted_/vlan_)features fields to a bitmap.
net-dsa: extending (hw_/wanted_/vlan_)features fields to a bitmap.
net-l2tp: extending (hw_/wanted_/vlan_)features fields to a bitmap.
net-phonet: extending (hw_/wanted_/vlan_)features fields to a bitmap.
net-sctp: extending (hw_/wanted_/vlan_)features fields to a bitmap.
net-wireless: extending (hw_/wanted_/vlan_)features fields to a
bitmap.
loopback: extending (hw_/wanted_/vlan_)features fields to a bitmap.
veth: extending (hw_/wanted_/vlan_)features fields to a bitmap.
jme: extending (hw_/wanted_/vlan_)features fields to a bitmap.
sungem: extending (hw_/wanted_/vlan_)features fields to a bitmap.
sunhme: extending (hw_/wanted_/vlan_)features fields to a bitmap.
usb-smsc75xx: extending (hw_/wanted_/vlan_)features fields to a
bitmap.
usb-smsc95xx: extending (hw_/wanted_/vlan_)features fields to a
bitmap.
virtio_net: extending (hw_/wanted_/vlan_)features fields to a bitmap.
xen: extending (hw_/wanted_/vlan_)features fields to a bitmap.
drivers/net/jme.c | 12 ++--
drivers/net/loopback.c | 4 +-
drivers/net/sungem.c | 7 +-
drivers/net/sunhme.c | 8 +-
drivers/net/usb/smsc75xx.c | 12 ++--
drivers/net/usb/smsc95xx.c | 12 ++--
drivers/net/veth.c | 6 +-
drivers/net/virtio_net.c | 21 ++++---
drivers/net/xen-netfront.c | 8 +-
include/linux/if_vlan.h | 4 +-
include/linux/netdevice.h | 110 +++++++++++++++++++++++++-----------
net/8021q/vlan.c | 12 ++--
net/8021q/vlan_dev.c | 9 ++-
net/bridge/br_device.c | 2 +-
net/bridge/br_if.c | 4 +-
net/core/dev.c | 51 +++++++++--------
net/core/ethtool.c | 97 ++++++++++++++++----------------
net/core/net-sysfs.c | 4 +-
net/core/sock.c | 2 +-
net/dccp/ipv6.c | 2 +-
net/decnet/af_decnet.c | 2 +-
net/decnet/dn_nsp_out.c | 2 +-
net/dsa/slave.c | 4 +-
net/ipv4/ip_gre.c | 6 +-
net/ipv4/ip_output.c | 12 ++--
net/ipv4/ipip.c | 4 +-
net/ipv4/ipmr.c | 2 +-
net/ipv4/netfilter/nf_nat_helper.c | 2 +-
net/ipv6/ip6_output.c | 6 +-
net/ipv6/ip6_tunnel.c | 2 +-
net/ipv6/ip6mr.c | 2 +-
net/ipv6/sit.c | 4 +-
net/l2tp/l2tp_core.c | 2 +-
net/phonet/pep-gprs.c | 2 +-
net/sctp/output.c | 4 +-
net/wireless/core.c | 10 ++--
36 files changed, 251 insertions(+), 202 deletions(-)
--
1.7.3.1
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