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由 Yi Zou 提交于
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: NYi Zou <yi.zou@intel.com> Acked-by: NPeter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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