linux-toradex.git/include/linux/dcbnl.h, branch v2.6.38.6

net: dcb: match dcb_app protocol field with 802.1Qaz spec

2011-02-20T03:00:50+00:00

The dcb_app protocol field is a __u32 however the 802.1Qaz
specification defines it as a 16 bit field. This patch brings
the structure inline with the spec making it a __u16.

CC: Shmulik Ravid 
Signed-off-by: John Fastabend 
Signed-off-by: David S. Miller

dcbnl: adding DCBX feature flags get-set

2010-12-31T18:50:54+00:00

Adding a pair of set-get routines to dcbnl for setting the negotiation
flags of the various DCB features. Conforms to the CEE flavor of DCBX
The user sets these flags (enable, advertise, willing) for each feature
to be used by the DCBX engine. The 'get' routine returns which of the
features is enabled after the negotiation.

This patch is dependent on the following patches:
[net-next-2.6 PATCH 1/3] dcbnl: add support for ieee8021Qaz attributes
[net-next-2.6 PATCH 2/3] dcbnl: add appliction tlv handlers
[net-next-2.6 PATCH 3/3] net_dcb: add application notifiers

Signed-off-by: Shmulik Ravid 
Signed-off-by: David S. Miller

dcbnl: adding DCBX engine capability

2010-12-31T18:50:54+00:00

Adding an optional DCBX capability and a pair for get-set routines for
setting the device DCBX mode. The DCBX capability is a bit field of
supported attributes. The user is expected to set the DCBX mode with a
subset of the advertised attributes.

This patch is dependent on the following patches:
[net-next-2.6 PATCH 1/3] dcbnl: add support for ieee8021Qaz attributes
[net-next-2.6 PATCH 2/3] dcbnl: add appliction tlv handlers
[net-next-2.6 PATCH 3/3] net_dcb: add application notifiers

Signed-off-by: Shmulik Ravid 
Acked-by: John Fastabend 
Signed-off-by: David S. Miller

dcbnl: add appliction tlv handlers

2010-12-31T18:47:45+00:00

This patch adds application tlv handlers. Networking stacks
may use the application priority to set the skb priority of
their stack using the negoatiated dcbx priority.

This patch provides the dcb_{get|set}app() routines for the
stack to query these parameters. Notice lower layer drivers
can use the dcbnl_ops routines if additional handling is
needed. Perhaps in the firmware case for example

Signed-off-by: John Fastabend 
Signed-off-by: Shmulik Ravid 
Signed-off-by: David S. Miller

dcbnl: add support for ieee8021Qaz attributes

2010-12-31T18:47:45+00:00

The IEEE8021Qaz is the IEEE standard version of CEE. The
standard has had enough significant changes from the CEE
version that many of the CEE attributes have no meaning
in the new spec or do not easily map to IEEE standards.

Rather then attempt to create a complicated mapping
between CEE and IEEE standards this patch adds a nested
IEEE attribute to the list of DCB attributes. The policy
is,

	[DCB_ATTR_IFNAME]
	[DCB_ATTR_STATE]
	...
	[DCB_ATTR_IEEE]
		[DCB_ATTR_IEEE_ETS]
		[DCB_ATTR_IEEE_PFC]
		[DCB_ATTR_IEEE_APP_TABLE]
			[DCB_ATTR_IEEE_APP]
			...

The following dcbnl_rtnl_ops routines were added to handle
the IEEE standard,

	int (*ieee_getets) (struct net_device *, struct ieee_ets *);
	int (*ieee_setets) (struct net_device *, struct ieee_ets *);
	int (*ieee_getpfc) (struct net_device *, struct ieee_pfc *);
	int (*ieee_setpfc) (struct net_device *, struct ieee_pfc *);
	int (*ieee_getapp) (struct net_device *, struct dcb_app *);
	int (*ieee_setapp) (struct net_device *, struct dcb_app *);

Signed-off-by: John Fastabend 
Signed-off-by: David S. Miller

remove DCB_PROTO_VERSION as we don't do netlink versioning

2010-04-23T01:32:12+00:00

remove DCB_PROTO_VERSION as we don't do netlink versioning

Signed-off-by: Scott Feldman 
Signed-off-by: David S. Miller

dcbnl: Add support for setapp/getapp commands to dcbnl

2009-09-01T08:24:30+00:00

This patch adds dcbnl command definitions to support setapp/getapp
functionality from the IEEE 802.1Qaz Data Center Bridging Capability
Exchange protocol (DCBX) specification. Section 3.3 defines the
application protocol and its 802.1p user priority in DCBX, which is
implemented here as a pair of setapp/getapp commands in the kernel
dcbnl for setting and retrieving the user priority for an given
application protocol. The protocol is identified by the combination of
an id and an idtype. Currently, when idtype is 0, the corresponding
id gives the ether type of this protocol, e.g., for FCoE, it will be
0x8906; when idtype is 1, then the corresponding id gives the TCP or
UDP port number.

For more information regarding DCBX spec., please refer to the following:
http://www.ieee802.org/1/files/public/docs2008/
az-wadekar-dcbx-capability-exchange-discovery-protocol-1108-v1.01.pdf

Signed-off-by: Yi Zou 
Acked-by: Peter P Waskiewicz Jr 
Signed-off-by: Jeff Kirsher 
Signed-off-by: David S. Miller

net headers: cleanup dcbnl.h

2009-03-01T08:19:35+00:00

1) add an include for 
2) change dcbmsg.dcb_family from unsigned char to __u8 to be more
   consistent with use of kernel types

Signed-off-by: Chris Leech 
Acked-by: Sam Ravnborg 
Signed-off-by: David S. Miller

net: add DCNA attribute to the BCN interface for DCB

2008-12-22T04:10:29+00:00

Adds the Backward Congestion Notification Address (BCNA) attribute to the
Backward Congestion Notification (BCN) interface for Data Center Bridging
(DCB), which was missing.  Receive the BCNA attribute in the ixgbe driver.
The BCNA attribute is for a switch to inform the endstation about the physical
port identification in order to support BCN on aggregated links.

Signed-off-by: Don Skidmore 
Signed-off-by: Eric W Multanen 
Signed-off-by: Jeff Kirsher

DCB: Add support for DCB BCN

2008-11-21T05:10:23+00:00

Adds an interface to configure the Backward Congestion Notification
(BCN) feature.  In a BCN capabale network, congestion notifications
from congested points out in the network can cause the end station
limit the rate of a given traffic flow.

Signed-off-by: Alexander Duyck 
Signed-off-by: Jeff Kirsher 
Signed-off-by: Peter P Waskiewicz Jr 
Signed-off-by: David S. Miller