linux.git/drivers/net/macb.c, branch v2.6.24

MACB: clear transmit buffers properly on transmit underrun

2007-12-23T04:26:51+00:00

Initially transmit buffer pointers were only reset. But buffer
descriptors were possibly still set as ready, and buffer in upper
layer was not freed. This caused driver hang under big load.  Now
reset clean properly the buffer descriptor and freed upper layer.

Signed-off-by: Gregory CLEMENT 
Signed-off-by: Haavard Skinnemoen 
Signed-off-by: Jeff Garzik

[NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()

2007-10-10T23:51:42+00:00

This is nicer than the MAC_FMT stuff.

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

[NET]: Nuke SET_MODULE_OWNER macro.

2007-10-10T23:51:13+00:00

It's been a useless no-op for long enough in 2.6 so I figured it's time to
remove it.  The number of people that could object because they're
maintaining unified 2.4 and 2.6 drivers is probably rather small.

[ Handled drivers added by netdev tree and some missed IRDA cases... -DaveM ]

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

[NET]: Make NAPI polling independent of struct net_device objects.

2007-10-10T23:47:45+00:00

Several devices have multiple independant RX queues per net
device, and some have a single interrupt doorbell for several
queues.

In either case, it's easier to support layouts like that if the
structure representing the poll is independant from the net
device itself.

The signature of the ->poll() call back goes from:

	int foo_poll(struct net_device *dev, int *budget)

to

	int foo_poll(struct napi_struct *napi, int budget)

The caller is returned the number of RX packets processed (or
the number of "NAPI credits" consumed if you want to get
abstract).  The callee no longer messes around bumping
dev->quota, *budget, etc. because that is all handled in the
caller upon return.

The napi_struct is to be embedded in the device driver private data
structures.

Furthermore, it is the driver's responsibility to disable all NAPI
instances in it's ->stop() device close handler.  Since the
napi_struct is privatized into the driver's private data structures,
only the driver knows how to get at all of the napi_struct instances
it may have per-device.

With lots of help and suggestions from Rusty Russell, Roland Dreier,
Michael Chan, Jeff Garzik, and Jamal Hadi Salim.

Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra,
Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan.

[ Ported to current tree and all drivers converted.  Integrated
  Stephen's follow-on kerneldoc additions, and restored poll_list
  handling to the old style to fix mutual exclusion issues.  -DaveM ]

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

macb: Add multicast capability

2007-07-16T22:28:04+00:00

Add multicast capability to Atmel ethernet macb driver.

Signed-off-by: Patrice Vilchez 
Signed-off-by: Haavard Skinnemoen 
Signed-off-by: Jeff Garzik

macb: Use generic PHY layer

2007-07-16T22:28:04+00:00

Convert the macb driver to use the generic PHY layer in
drivers/net/phy.

Signed-off-by: Frederic RODO 
Signed-off-by: Haavard Skinnemoen 
Signed-off-by: Jeff Garzik

[SK_BUFF]: Introduce skb_copy_to_linear_data{_offset}

2007-04-26T05:28:29+00:00

To clearly state the intent of copying to linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo

[SK_BUFF]: Convert skb->end to sk_buff_data_t

2007-04-26T05:26:29+00:00

Now to convert the last one, skb->data, that will allow many simplifications
and removal of some of the offset helpers.

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

[SK_BUFF]: Convert skb->tail to sk_buff_data_t

2007-04-26T05:26:28+00:00

So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes
on 64bit architectures, allowing us to combine the 4 bytes hole left by the
layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4
64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN...
:-)

Many calculations that previously required that skb->{transport,network,
mac}_header be first converted to a pointer now can be done directly, being
meaningful as offsets or pointers.

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

[ETH]: Make eth_type_trans set skb->dev like the other *_type_trans

2007-04-26T05:24:30+00:00

One less thing for drivers writers to worry about.

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