linux-stable.git/include/linux/netdevice.h, branch v3.12.2

netif_set_xps_queue: make cpu mask const

2013-10-07T16:29:26+00:00

virtio wants to pass in cpumask_of(cpu), make parameter
const to avoid build warnings.

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

vxlan: Fix sparse warnings

2013-09-16T02:18:13+00:00

This patch fixes sparse warnings when incorrectly handling the port number
and using int instead of unsigned int iterating through &vn->sock_list[].
Keeping the port as __be16 also makes things clearer wrt endianess.
Also, it was pointed out that vxlan_get_rx_port() had unnecessary checks
which got removed.

Signed-off-by: Joseph Gasparakis 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

net: add documentation for BQL helpers

2013-09-06T18:43:49+00:00

Provide a kernel-doc comment documentation for the BQL helpers:
- netdev_sent_queue
- netdev_completed_queue
- netdev_reset_queue

Similarly to how it is done for the other functions, the documentation
only covers the function operating on struct net_device and not struct
netdev_queue.

Signed-off-by: Florian Fainelli 
Acked-by: Eric Dumazet 
Signed-off-by: David S. Miller

vxlan: Notify drivers for listening UDP port changes

2013-09-05T16:44:30+00:00

This patch adds two more ndo ops: ndo_add_rx_vxlan_port() and
ndo_del_rx_vxlan_port().

Drivers can get notifications through the above functions about changes
of the UDP listening port of VXLAN. Also, when physical ports come up,
now they can call vxlan_get_rx_port() in order to obtain the port number(s)
of the existing VXLAN interface in case they already up before them.

This information about the listening UDP port would be used for VXLAN
related offloads.

A big thank you to John Fastabend (john.r.fastabend@intel.com) for his
input and his suggestions on this patch set.

CC: John Fastabend 
CC: Stephen Hemminger 
Signed-off-by: Joseph Gasparakis 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

net: add netdev_for_each_upper_dev_rcu()

2013-08-29T20:19:42+00:00

The new macro netdev_for_each_upper_dev_rcu(dev, upper, iter) iterates
through the dev->upper_dev_list starting from the first element, using
the netdev_upper_get_next_dev_rcu(dev, &iter).

Must be called under RCU read lock.

CC: "David S. Miller" 
CC: Eric Dumazet 
CC: Jiri Pirko 
CC: Alexander Duyck 
CC: Cong Wang 
Signed-off-by: Veaceslav Falico 
Signed-off-by: David S. Miller

net: add lower_dev_list to net_device and make a full mesh

2013-08-29T20:19:42+00:00

This patch adds lower_dev_list list_head to net_device, which is the same
as upper_dev_list, only for lower devices, and begins to use it in the same
way as the upper list.

It also changes the way the whole adjacent device lists work - now they
contain *all* of upper/lower devices, not only the first level. The first
level devices are distinguished by the bool neighbour field in
netdev_adjacent, also added by this patch.

There are cases when a device can be added several times to the adjacent
list, the simplest would be:

     /---- eth0.10 ---\
eth0-		       --- bond0
     \---- eth0.20 ---/

where both bond0 and eth0 'see' each other in the adjacent lists two times.
To avoid duplication of netdev_adjacent structures ref_nr is being kept as
the number of times the device was added to the list.

The 'full view' is achieved by adding, on link creation, all of the
upper_dev's upper_dev_list devices as upper devices to all of the
lower_dev's lower_dev_list devices (and to the lower_dev itself), and vice
versa. On unlink they are removed using the same logic.

I've tested it with thousands vlans/bonds/bridges, everything works ok and
no observable lags even on a huge number of interfaces.

Memory footprint for 128 devices interconnected with each other via both
upper and lower (which is impossible, but for the comparison) lists would be:

128*128*2*sizeof(netdev_adjacent) = 1.5MB

but in the real world we usualy have at most several devices with slaves
and a lot of vlans, so the footprint will be much lower.

CC: "David S. Miller" 
CC: Eric Dumazet 
CC: Jiri Pirko 
CC: Alexander Duyck 
CC: Cong Wang 
Signed-off-by: Veaceslav Falico 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2013-08-04T04:36:46+00:00

Merge net into net-next to setup some infrastructure Eric
Dumazet needs for usbnet changes.

Signed-off-by: David S. Miller

net: rename CONFIG_NET_LL_RX_POLL to CONFIG_NET_RX_BUSY_POLL

2013-08-01T22:11:17+00:00

Eliezer renames several *ll_poll to *busy_poll, but forgets
CONFIG_NET_LL_RX_POLL, so in case of confusion, rename it too.

Cc: Eliezer Tamir 
Cc: David S. Miller 
Signed-off-by: Cong Wang 
Signed-off-by: David S. Miller

net: add ndo to get id of physical port of the device

2013-07-31T00:31:24+00:00

This patch adds a ndo for getting physical port of the device. Driver
which is aware of being virtual function of some physical port should
implement this ndo. This is applicable not only for IOV, but for other
solutions (NPAR, multichannel) as well. Basically if there is possible
to have multiple netdevs on the single hw port.

Signed-off-by: Jiri Pirko 
Acked-by: Ben Hutchings 
Signed-off-by: David S. Miller

net: Make devnet_rename_seq static

2013-07-25T00:57:26+00:00

No users outside net/core/dev.c.

Signed-off-by: Thomas Gleixner 
Acked-by: Eric Dumazet 
Signed-off-by: David S. Miller