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0f6f290259
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>
361 lines
12 KiB
C
361 lines
12 KiB
C
/*
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* Copyright (c) 2008, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*
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* Author: Lucy Liu <lucy.liu@intel.com>
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*/
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#ifndef __LINUX_DCBNL_H__
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#define __LINUX_DCBNL_H__
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#include <linux/types.h>
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#define DCB_PROTO_VERSION 1
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struct dcbmsg {
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__u8 dcb_family;
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__u8 cmd;
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__u16 dcb_pad;
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};
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/**
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* enum dcbnl_commands - supported DCB commands
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*
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* @DCB_CMD_UNDEFINED: unspecified command to catch errors
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* @DCB_CMD_GSTATE: request the state of DCB in the device
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* @DCB_CMD_SSTATE: set the state of DCB in the device
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* @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
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* @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
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* @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
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* @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
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* @DCB_CMD_PFC_GCFG: request the priority flow control configuration
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* @DCB_CMD_PFC_SCFG: set the priority flow control configuration
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* @DCB_CMD_SET_ALL: apply all changes to the underlying device
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* @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
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* device. Only useful when using bonding.
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* @DCB_CMD_GCAP: request the DCB capabilities of the device
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* @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
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* @DCB_CMD_SNUMTCS: set the number of traffic classes
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* @DCB_CMD_GBCN: set backward congestion notification configuration
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* @DCB_CMD_SBCN: get backward congestion notification configration.
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* @DCB_CMD_GAPP: get application protocol configuration
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* @DCB_CMD_SAPP: set application protocol configuration
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*/
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enum dcbnl_commands {
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DCB_CMD_UNDEFINED,
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DCB_CMD_GSTATE,
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DCB_CMD_SSTATE,
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DCB_CMD_PGTX_GCFG,
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DCB_CMD_PGTX_SCFG,
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DCB_CMD_PGRX_GCFG,
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DCB_CMD_PGRX_SCFG,
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DCB_CMD_PFC_GCFG,
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DCB_CMD_PFC_SCFG,
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DCB_CMD_SET_ALL,
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DCB_CMD_GPERM_HWADDR,
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DCB_CMD_GCAP,
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DCB_CMD_GNUMTCS,
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DCB_CMD_SNUMTCS,
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DCB_CMD_PFC_GSTATE,
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DCB_CMD_PFC_SSTATE,
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DCB_CMD_BCN_GCFG,
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DCB_CMD_BCN_SCFG,
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DCB_CMD_GAPP,
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DCB_CMD_SAPP,
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__DCB_CMD_ENUM_MAX,
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DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
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};
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/**
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* enum dcbnl_attrs - DCB top-level netlink attributes
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*
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* @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
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* @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
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* @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
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* @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
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* @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
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* @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
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* @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
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* @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
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* @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
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* @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
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* @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
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* @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
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*/
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enum dcbnl_attrs {
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DCB_ATTR_UNDEFINED,
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DCB_ATTR_IFNAME,
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DCB_ATTR_STATE,
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DCB_ATTR_PFC_STATE,
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DCB_ATTR_PFC_CFG,
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DCB_ATTR_NUM_TC,
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DCB_ATTR_PG_CFG,
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DCB_ATTR_SET_ALL,
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DCB_ATTR_PERM_HWADDR,
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DCB_ATTR_CAP,
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DCB_ATTR_NUMTCS,
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DCB_ATTR_BCN,
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DCB_ATTR_APP,
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__DCB_ATTR_ENUM_MAX,
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DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
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};
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/**
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* enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
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*
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* @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
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* @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
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* @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
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* @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
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* @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
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* @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
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* @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
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* @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
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* @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
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* @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
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* @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
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*
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*/
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enum dcbnl_pfc_up_attrs {
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DCB_PFC_UP_ATTR_UNDEFINED,
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DCB_PFC_UP_ATTR_0,
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DCB_PFC_UP_ATTR_1,
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DCB_PFC_UP_ATTR_2,
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DCB_PFC_UP_ATTR_3,
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DCB_PFC_UP_ATTR_4,
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DCB_PFC_UP_ATTR_5,
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DCB_PFC_UP_ATTR_6,
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DCB_PFC_UP_ATTR_7,
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DCB_PFC_UP_ATTR_ALL,
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__DCB_PFC_UP_ATTR_ENUM_MAX,
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DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
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};
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/**
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* enum dcbnl_pg_attrs - DCB Priority Group attributes
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*
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* @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
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* @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
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* @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
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* @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
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* @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
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* @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
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* @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
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*
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*/
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enum dcbnl_pg_attrs {
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DCB_PG_ATTR_UNDEFINED,
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DCB_PG_ATTR_TC_0,
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DCB_PG_ATTR_TC_1,
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DCB_PG_ATTR_TC_2,
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DCB_PG_ATTR_TC_3,
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DCB_PG_ATTR_TC_4,
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DCB_PG_ATTR_TC_5,
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DCB_PG_ATTR_TC_6,
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DCB_PG_ATTR_TC_7,
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DCB_PG_ATTR_TC_MAX,
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DCB_PG_ATTR_TC_ALL,
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DCB_PG_ATTR_BW_ID_0,
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DCB_PG_ATTR_BW_ID_1,
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DCB_PG_ATTR_BW_ID_2,
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DCB_PG_ATTR_BW_ID_3,
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DCB_PG_ATTR_BW_ID_4,
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DCB_PG_ATTR_BW_ID_5,
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DCB_PG_ATTR_BW_ID_6,
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DCB_PG_ATTR_BW_ID_7,
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DCB_PG_ATTR_BW_ID_MAX,
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DCB_PG_ATTR_BW_ID_ALL,
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__DCB_PG_ATTR_ENUM_MAX,
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DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
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};
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/**
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* enum dcbnl_tc_attrs - DCB Traffic Class attributes
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*
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* @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
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* @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
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* Valid values are: 0-7
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* @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
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* Some devices may not support changing the
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* user priority map of a TC.
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* @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
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* 0 - none
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* 1 - group strict
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* 2 - link strict
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* @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
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* not configured to use link strict priority,
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* this is the percentage of bandwidth of the
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* priority group this traffic class belongs to
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* @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
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*
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*/
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enum dcbnl_tc_attrs {
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DCB_TC_ATTR_PARAM_UNDEFINED,
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DCB_TC_ATTR_PARAM_PGID,
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DCB_TC_ATTR_PARAM_UP_MAPPING,
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DCB_TC_ATTR_PARAM_STRICT_PRIO,
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DCB_TC_ATTR_PARAM_BW_PCT,
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DCB_TC_ATTR_PARAM_ALL,
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__DCB_TC_ATTR_PARAM_ENUM_MAX,
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DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
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};
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/**
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* enum dcbnl_cap_attrs - DCB Capability attributes
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*
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* @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
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* @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
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* @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
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* @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
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* @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
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* traffic class mapping
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* @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
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* number of traffic classes the device
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* can be configured to use for Priority Groups
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* @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
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* number of traffic classes the device can be
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* configured to use for Priority Flow Control
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* @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
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* @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
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* Notification
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*/
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enum dcbnl_cap_attrs {
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DCB_CAP_ATTR_UNDEFINED,
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DCB_CAP_ATTR_ALL,
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DCB_CAP_ATTR_PG,
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DCB_CAP_ATTR_PFC,
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DCB_CAP_ATTR_UP2TC,
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DCB_CAP_ATTR_PG_TCS,
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DCB_CAP_ATTR_PFC_TCS,
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DCB_CAP_ATTR_GSP,
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DCB_CAP_ATTR_BCN,
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__DCB_CAP_ATTR_ENUM_MAX,
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DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
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};
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/**
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* enum dcbnl_numtcs_attrs - number of traffic classes
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*
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* @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
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* @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
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* @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
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* priority groups
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* @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
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* support priority flow control
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*/
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enum dcbnl_numtcs_attrs {
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DCB_NUMTCS_ATTR_UNDEFINED,
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DCB_NUMTCS_ATTR_ALL,
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DCB_NUMTCS_ATTR_PG,
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DCB_NUMTCS_ATTR_PFC,
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__DCB_NUMTCS_ATTR_ENUM_MAX,
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DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
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};
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enum dcbnl_bcn_attrs{
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DCB_BCN_ATTR_UNDEFINED = 0,
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DCB_BCN_ATTR_RP_0,
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DCB_BCN_ATTR_RP_1,
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DCB_BCN_ATTR_RP_2,
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DCB_BCN_ATTR_RP_3,
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DCB_BCN_ATTR_RP_4,
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DCB_BCN_ATTR_RP_5,
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DCB_BCN_ATTR_RP_6,
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DCB_BCN_ATTR_RP_7,
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DCB_BCN_ATTR_RP_ALL,
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DCB_BCN_ATTR_BCNA_0,
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DCB_BCN_ATTR_BCNA_1,
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DCB_BCN_ATTR_ALPHA,
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DCB_BCN_ATTR_BETA,
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DCB_BCN_ATTR_GD,
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DCB_BCN_ATTR_GI,
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DCB_BCN_ATTR_TMAX,
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DCB_BCN_ATTR_TD,
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DCB_BCN_ATTR_RMIN,
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DCB_BCN_ATTR_W,
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DCB_BCN_ATTR_RD,
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DCB_BCN_ATTR_RU,
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DCB_BCN_ATTR_WRTT,
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DCB_BCN_ATTR_RI,
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DCB_BCN_ATTR_C,
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DCB_BCN_ATTR_ALL,
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__DCB_BCN_ATTR_ENUM_MAX,
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DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
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};
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/**
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* enum dcb_general_attr_values - general DCB attribute values
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*
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* @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
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*
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*/
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enum dcb_general_attr_values {
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DCB_ATTR_VALUE_UNDEFINED = 0xff
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};
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#define DCB_APP_IDTYPE_ETHTYPE 0x00
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#define DCB_APP_IDTYPE_PORTNUM 0x01
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enum dcbnl_app_attrs {
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DCB_APP_ATTR_UNDEFINED,
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DCB_APP_ATTR_IDTYPE,
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DCB_APP_ATTR_ID,
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DCB_APP_ATTR_PRIORITY,
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__DCB_APP_ATTR_ENUM_MAX,
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DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
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};
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#endif /* __LINUX_DCBNL_H__ */
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