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* dcbnl: Aggregated CEE GET operationShmulik Ravid2011-07-051-2/+21
| | | | | | | | | | | | | | | | | | | The following couple of patches add dcbnl an unsolicited notification of the the DCB configuration for the CEE flavor of the DCBX protocol. This is useful when the user-mode DCB client is not responsible for conducting and resolving the DCBX negotiation (either because the DCBX stack is embedded in the HW or the negotiation is handled by another agent in the host), but still needs to get the negotiated parameters. This functionality already exists for the IEEE flavor of the DCBX protocol and these patches add it to the older CEE flavor. The first patch extends the CEE attribute GET operation to include not only the peer information, but also all the pertinent local configuration (negotiated parameters). The second patch adds and export a CEE specific notification routine. Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dcb: Add ieee_dcb_delapp() and dcb op to delete app entryJohn Fastabend2011-06-211-0/+2
| | | | | | | | | | | | Now that we allow multiple IEEE App entries we need a way to remove specific entries. To do this add the ieee_dcb_delapp() routine. Additionaly drivers may need to remove the APP entry from their firmware tables. Add dcb ops routine to handle this. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dcbnl: Add IEEE app selector value definitionsMark Rustad2011-03-141-0/+5
| | | | | | | | | This adds defines for the app selector values currently defined in the IEEE 802.1Qaz specification. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dcbnl: Fix misspellingsMark Rustad2011-03-141-3/+3
| | | | | | | | Fix a few spelling errors in dcbnl.h. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dcbnl: Update copyright datesMark Rustad2011-03-141-1/+1
| | | | | | Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dcbnl: add support for retrieving peer configuration - ceeShmulik Ravid2011-03-021-0/+71
| | | | | | | | | This patch adds the support for retrieving the remote or peer DCBX configuration via dcbnl for embedded DCBX stacks supporting the CEE DCBX standard. Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dcbnl: add support for retrieving peer configuration - ieeeShmulik Ravid2011-03-021-0/+28
| | | | | | | | | | | | These 2 patches add the support for retrieving the remote or peer DCBX configuration via dcbnl for embedded DCBX stacks. The peer configuration is part of the DCBX MIB and is useful for debugging and diagnostics of the overall DCB configuration. The first patch add this support for IEEE 802.1Qaz standard the second patch add the same support for the older CEE standard. Diff for v2 - the peer-app-info is CEE specific. Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2011-02-191-1/+1
|\ | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: Documentation/feature-removal-schedule.txt drivers/net/e1000e/netdev.c net/xfrm/xfrm_policy.c
| * net: dcb: match dcb_app protocol field with 802.1Qaz specJohn Fastabend2011-02-191-1/+1
| | | | | | | | | | | | | | | | | | | | 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 <shmulikr@broadcom.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ixgbe: DCB, implement 802.1Qaz routinesJohn Fastabend2011-02-111-0/+5
|/ | | | | | | | | | Implements 802.1Qaz support for ixgbe driver. Additionally, this adds IEEE_8021QAZ_TSA_{} defines to dcbnl.h this is to avoid having to use cryptic numeric codes for the TSA type. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* dcbnl: adding DCBX feature flags get-setShmulik Ravid2010-12-311-0/+33
| | | | | | | | | | | | | | | | 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 <shmulikr@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dcbnl: adding DCBX engine capabilityShmulik Ravid2010-12-311-0/+43
| | | | | | | | | | | | | | | | 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 <shmulikr@broadcom.com> Acked-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dcbnl: add appliction tlv handlersJohn Fastabend2010-12-311-1/+3
| | | | | | | | | | | | | | | 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 <john.r.fastabend@intel.com> Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dcbnl: add support for ieee8021Qaz attributesJohn Fastabend2010-12-311-0/+106
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* remove DCB_PROTO_VERSION as we don't do netlink versioningScott Feldman2010-04-221-2/+0
| | | | | | | remove DCB_PROTO_VERSION as we don't do netlink versioning Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dcbnl: Add support for setapp/getapp commands to dcbnlYi Zou2009-09-011-0/+18
| | | | | | | | | | | | | | | | | | | | | | | 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 <yi.zou@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net headers: cleanup dcbnl.hChris Leech2009-03-011-1/+3
| | | | | | | | | | 1) add an include for <linux/types.h> 2) change dcbmsg.dcb_family from unsigned char to __u8 to be more consistent with use of kernel types Signed-off-by: Chris Leech <christopher.leech@intel.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: add DCNA attribute to the BCN interface for DCBDon Skidmore2008-12-211-0/+2
| | | | | | | | | | | | 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 <donald.c.skidmore@intel.com> Signed-off-by: Eric W Multanen <eric.w.multanen@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* DCB: Add support for DCB BCNAlexander Duyck2008-11-201-1/+43
| | | | | | | | | | | | 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 <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* DCB: Add interface to query the state of PFC feature.Alexander Duyck2008-11-201-0/+2
| | | | | | | | | | | | Adds a netlink interface for Data Center Bridging (DCB) to get and set the enable state of the Priority Flow Control (PFC) feature. Primarily, this is a way to turn off PFC in the driver while DCB remains enabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* DCB: Add interface to query # of TCs supported by deviceAlexander Duyck2008-11-201-0/+27
| | | | | | | | | | | | Adds interface for Data Center Bridging (DCB) to query (and set if supported) the number of traffic classes currently supported by the device for the two (DCB) features: priority groups (PG) and priority flow control (PFC). Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* DCB: Add interface to query for the DCB capabilities of an device.Alexander Duyck2008-11-201-0/+37
| | | | | | | | | | Adds to the netlink interface for Data Center Bridging (DCB), allowing the DCB capabilities supported by a device to be queried. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ixgbe: this patch adds support for DCB to the kernel and ixgbe driverAlexander Duyck2008-11-201-0/+230
This adds support for Data Center Bridging (DCB) features in the ixgbe driver and adds an rtnetlink interface for configuring DCB to the kernel. The DCB feature support included are Priority Grouping (PG) - which allows bandwidth guarantees to be allocated to groups to traffic based on the 802.1q priority, and Priority Based Flow Control (PFC) - which introduces a new MAC control PAUSE frame which works at granularity of the 802.1p priority instead of the link (IEEE 802.3x). Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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