linux.git/net/ethernet, branch v2.6.31

net: remove COMPAT_NET_DEV_OPS

2009-05-25T08:53:53+00:00

All drivers are already converted to new net_device_ops API
and nobody uses old API anymore.

Signed-off-by: Alexander Beregalov 
Signed-off-by: David S. Miller

eth: Declare an optimized compare_ether_addr_64bits() function

2008-11-24T07:24:32+00:00

Linus mentioned we could try to perform long word operations, even
on potentially unaligned addresses, on x86 at least. David mentioned
the HAVE_EFFICIENT_UNALIGNED_ACCESS test to handle this on all
arches that have efficient unailgned accesses.

I tried this idea and got nice assembly on 32 bits:

158:   33 82 38 01 00 00       xor    0x138(%edx),%eax
15e:   33 8a 34 01 00 00       xor    0x134(%edx),%ecx
164:   c1 e0 10                shl    $0x10,%eax
167:   09 c1                   or     %eax,%ecx
169:   74 0b                   je     176 

And very nice assembly on 64 bits of course (one xor, one shl)

Nice oprofile improvement in eth_type_trans(), 0.17 % instead of 0.41 %,
expected since we remove 8 instructions on a fast path.

This patch implements a compare_ether_addr_64bits() function, that
uses the CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS ifdef to efficiently
perform the 6 bytes comparison on all capable arches.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

netdev: expose ethernet address primitives

2008-11-20T06:42:31+00:00

When ethernet devices are converted, the function pointer setup
by eth_setup() need to be done during intialization.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

dsa: add support for Trailer tagging format

2008-10-09T00:24:16+00:00

This adds support for the Trailer switch tagging format.  This is
another tagging that doesn't explicitly mark tagged packets with a
distinct ethertype, so that we need to add a similar hack in the
receive path as for the Original DSA tagging format.

Signed-off-by: Lennert Buytenhek 
Tested-by: Byron Bradley 
Tested-by: Tim Ellis 
Signed-off-by: David S. Miller

dsa: add support for original DSA tagging format

2008-10-09T00:19:56+00:00

Most of the DSA switches currently in the field do not support the
Ethertype DSA tagging format that one of the previous patches added
support for, but only the original DSA tagging format.

The original DSA tagging format carries the same information as the
Ethertype DSA tagging format, but with the difference that it does not
have an ethertype field.  In other words, when receiving a packet that
is tagged with an original DSA tag, there is no way of telling in
eth_type_trans() that this packet is in fact a DSA-tagged packet.

This patch adds a hook into eth_type_trans() which is only compiled in
if support for a switch chip that doesn't support Ethertype DSA is
selected, and which checks whether there is a DSA switch driver
instance attached to this network device which uses the old tag format.
If so, it sets the protocol field to ETH_P_DSA without looking at the
packet, so that the packet ends up in the right place.

Signed-off-by: Lennert Buytenhek 
Tested-by: Nicolas Pitre 
Tested-by: Peter van Valderen 
Tested-by: Dirk Teurlings 
Signed-off-by: David S. Miller

net: Use hton[sl]() instead of __constant_hton[sl]() where applicable

2008-09-21T05:20:49+00:00

Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[NET]: Return more appropriate error from eth_validate_addr().

2008-04-14T05:45:40+00:00

Paul Bolle wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=9923 would have been much easier to
> track down if eth_validate_addr() would somehow complain aloud if an address 
> is invalid. Shouldn't it make at least some noise?

I guess it should return -EADDRNOTAVAIL similar to eth_mac_addr()
when validation fails.

Signed-off-by: Patrick McHardy 
Signed-off-by: David S. Miller

[ETH]: Combine format_addr() with print_mac().

2008-01-28T23:00:05+00:00

print_mac() used many most net drivers and format_addr() used by
net-sysfs.c are very similar and they can be intergrated.

format_addr() is also identically redefined in the qla4xxx iscsi
driver.

Export a new function sysfs_format_mac() to be used by net-sysfs,
qla4xxx and others in the future.  Both print_mac() and
sysfs_format_mac() call _format_mac_addr() to do the formatting.

Changed print_mac() to use unsigned char * to be consistent with
net_device struct's dev_addr.  Added buffer length overrun checking
as suggested by Joe Perches.

Signed-off-by: Michael Chan 
Signed-off-by: David S. Miller

[NET]: Validate device addr prior to interface-up

2007-10-24T04:27:50+00:00

Signed-off-by: Jeff Garzik 
Signed-off-by: David S. Miller

[NET]: Move hardware header operations out of netdevice.

2007-10-10T23:52:52+00:00

Since hardware header operations are part of the protocol class
not the device instance, make them into a separate object and
save memory.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller