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C/C++ Source or Header  |  2009-10-16  |  12KB  |  343 lines
  1. /*
  2.  * Copyright (c) 2008, Intel Corporation.
  3.  *
  4.  * This program is free software; you can redistribute it and/or modify it
  5.  * under the terms and conditions of the GNU General Public License,
  6.  * version 2, as published by the Free Software Foundation.
  7.  *
  8.  * This program is distributed in the hope it will be useful, but WITHOUT
  9.  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10.  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11.  * more details.
  12.  *
  13.  * You should have received a copy of the GNU General Public License along with
  14.  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  15.  * Place - Suite 330, Boston, MA 02111-1307 USA.
  16.  *
  17.  * Author: Lucy Liu <lucy.liu@intel.com>
  18.  */
  19.  
  20. #ifndef __LINUX_DCBNL_H__
  21. #define __LINUX_DCBNL_H__
  22.  
  23. #include <linux/types.h>
  24.  
  25. #define DCB_PROTO_VERSION 1
  26.  
  27. struct dcbmsg {
  28.     __u8               dcb_family;
  29.     __u8               cmd;
  30.     __u16              dcb_pad;
  31. };
  32.  
  33. /**
  34.  * enum dcbnl_commands - supported DCB commands
  35.  *
  36.  * @DCB_CMD_UNDEFINED: unspecified command to catch errors
  37.  * @DCB_CMD_GSTATE: request the state of DCB in the device
  38.  * @DCB_CMD_SSTATE: set the state of DCB in the device
  39.  * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
  40.  * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
  41.  * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
  42.  * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
  43.  * @DCB_CMD_PFC_GCFG: request the priority flow control configuration
  44.  * @DCB_CMD_PFC_SCFG: set the priority flow control configuration
  45.  * @DCB_CMD_SET_ALL: apply all changes to the underlying device
  46.  * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
  47.  *                        device.  Only useful when using bonding.
  48.  * @DCB_CMD_GCAP: request the DCB capabilities of the device
  49.  * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
  50.  * @DCB_CMD_SNUMTCS: set the number of traffic classes
  51.  * @DCB_CMD_GBCN: set backward congestion notification configuration
  52.  * @DCB_CMD_SBCN: get backward congestion notification configration.
  53.  */
  54. enum dcbnl_commands {
  55.     DCB_CMD_UNDEFINED,
  56.  
  57.     DCB_CMD_GSTATE,
  58.     DCB_CMD_SSTATE,
  59.  
  60.     DCB_CMD_PGTX_GCFG,
  61.     DCB_CMD_PGTX_SCFG,
  62.     DCB_CMD_PGRX_GCFG,
  63.     DCB_CMD_PGRX_SCFG,
  64.  
  65.     DCB_CMD_PFC_GCFG,
  66.     DCB_CMD_PFC_SCFG,
  67.  
  68.     DCB_CMD_SET_ALL,
  69.  
  70.     DCB_CMD_GPERM_HWADDR,
  71.  
  72.     DCB_CMD_GCAP,
  73.  
  74.     DCB_CMD_GNUMTCS,
  75.     DCB_CMD_SNUMTCS,
  76.  
  77.     DCB_CMD_PFC_GSTATE,
  78.     DCB_CMD_PFC_SSTATE,
  79.  
  80.     DCB_CMD_BCN_GCFG,
  81.     DCB_CMD_BCN_SCFG,
  82.  
  83.     __DCB_CMD_ENUM_MAX,
  84.     DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
  85. };
  86.  
  87. /**
  88.  * enum dcbnl_attrs - DCB top-level netlink attributes
  89.  *
  90.  * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
  91.  * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
  92.  * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
  93.  * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
  94.  * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
  95.  * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
  96.  * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
  97.  * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
  98.  * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
  99.  * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
  100.  * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
  101.  * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
  102.  */
  103. enum dcbnl_attrs {
  104.     DCB_ATTR_UNDEFINED,
  105.  
  106.     DCB_ATTR_IFNAME,
  107.     DCB_ATTR_STATE,
  108.     DCB_ATTR_PFC_STATE,
  109.     DCB_ATTR_PFC_CFG,
  110.     DCB_ATTR_NUM_TC,
  111.     DCB_ATTR_PG_CFG,
  112.     DCB_ATTR_SET_ALL,
  113.     DCB_ATTR_PERM_HWADDR,
  114.     DCB_ATTR_CAP,
  115.     DCB_ATTR_NUMTCS,
  116.     DCB_ATTR_BCN,
  117.  
  118.     __DCB_ATTR_ENUM_MAX,
  119.     DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
  120. };
  121.  
  122. /**
  123.  * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
  124.  *
  125.  * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
  126.  * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
  127.  * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
  128.  * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
  129.  * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
  130.  * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
  131.  * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
  132.  * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
  133.  * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
  134.  * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
  135.  * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
  136.  *
  137.  */
  138. enum dcbnl_pfc_up_attrs {
  139.     DCB_PFC_UP_ATTR_UNDEFINED,
  140.  
  141.     DCB_PFC_UP_ATTR_0,
  142.     DCB_PFC_UP_ATTR_1,
  143.     DCB_PFC_UP_ATTR_2,
  144.     DCB_PFC_UP_ATTR_3,
  145.     DCB_PFC_UP_ATTR_4,
  146.     DCB_PFC_UP_ATTR_5,
  147.     DCB_PFC_UP_ATTR_6,
  148.     DCB_PFC_UP_ATTR_7,
  149.     DCB_PFC_UP_ATTR_ALL,
  150.  
  151.     __DCB_PFC_UP_ATTR_ENUM_MAX,
  152.     DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
  153. };
  154.  
  155. /**
  156.  * enum dcbnl_pg_attrs - DCB Priority Group attributes
  157.  *
  158.  * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
  159.  * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
  160.  * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
  161.  * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
  162.  * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
  163.  * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
  164.  * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
  165.  * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
  166.  * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
  167.  * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
  168.  * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
  169.  * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
  170.  * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
  171.  * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
  172.  * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
  173.  * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
  174.  * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
  175.  * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
  176.  * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
  177.  * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
  178.  * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
  179.  *
  180.  */
  181. enum dcbnl_pg_attrs {
  182.     DCB_PG_ATTR_UNDEFINED,
  183.  
  184.     DCB_PG_ATTR_TC_0,
  185.     DCB_PG_ATTR_TC_1,
  186.     DCB_PG_ATTR_TC_2,
  187.     DCB_PG_ATTR_TC_3,
  188.     DCB_PG_ATTR_TC_4,
  189.     DCB_PG_ATTR_TC_5,
  190.     DCB_PG_ATTR_TC_6,
  191.     DCB_PG_ATTR_TC_7,
  192.     DCB_PG_ATTR_TC_MAX,
  193.     DCB_PG_ATTR_TC_ALL,
  194.  
  195.     DCB_PG_ATTR_BW_ID_0,
  196.     DCB_PG_ATTR_BW_ID_1,
  197.     DCB_PG_ATTR_BW_ID_2,
  198.     DCB_PG_ATTR_BW_ID_3,
  199.     DCB_PG_ATTR_BW_ID_4,
  200.     DCB_PG_ATTR_BW_ID_5,
  201.     DCB_PG_ATTR_BW_ID_6,
  202.     DCB_PG_ATTR_BW_ID_7,
  203.     DCB_PG_ATTR_BW_ID_MAX,
  204.     DCB_PG_ATTR_BW_ID_ALL,
  205.  
  206.     __DCB_PG_ATTR_ENUM_MAX,
  207.     DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
  208. };
  209.  
  210. /**
  211.  * enum dcbnl_tc_attrs - DCB Traffic Class attributes
  212.  *
  213.  * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
  214.  * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
  215.  *                          Valid values are:  0-7
  216.  * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
  217.  *                                Some devices may not support changing the
  218.  *                                user priority map of a TC.
  219.  * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
  220.  *                                 0 - none
  221.  *                                 1 - group strict
  222.  *                                 2 - link strict
  223.  * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
  224.  *                            not configured to use link strict priority,
  225.  *                            this is the percentage of bandwidth of the
  226.  *                            priority group this traffic class belongs to
  227.  * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
  228.  *
  229.  */
  230. enum dcbnl_tc_attrs {
  231.     DCB_TC_ATTR_PARAM_UNDEFINED,
  232.  
  233.     DCB_TC_ATTR_PARAM_PGID,
  234.     DCB_TC_ATTR_PARAM_UP_MAPPING,
  235.     DCB_TC_ATTR_PARAM_STRICT_PRIO,
  236.     DCB_TC_ATTR_PARAM_BW_PCT,
  237.     DCB_TC_ATTR_PARAM_ALL,
  238.  
  239.     __DCB_TC_ATTR_PARAM_ENUM_MAX,
  240.     DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
  241. };
  242.  
  243. /**
  244.  * enum dcbnl_cap_attrs - DCB Capability attributes
  245.  *
  246.  * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
  247.  * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
  248.  * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
  249.  * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
  250.  * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
  251.  *                               traffic class mapping
  252.  * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
  253.  *                                number of traffic classes the device
  254.  *                                can be configured to use for Priority Groups
  255.  * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
  256.  *                                 number of traffic classes the device can be
  257.  *                                 configured to use for Priority Flow Control
  258.  * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
  259.  * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
  260.  *                             Notification
  261.  */
  262. enum dcbnl_cap_attrs {
  263.     DCB_CAP_ATTR_UNDEFINED,
  264.     DCB_CAP_ATTR_ALL,
  265.     DCB_CAP_ATTR_PG,
  266.     DCB_CAP_ATTR_PFC,
  267.     DCB_CAP_ATTR_UP2TC,
  268.     DCB_CAP_ATTR_PG_TCS,
  269.     DCB_CAP_ATTR_PFC_TCS,
  270.     DCB_CAP_ATTR_GSP,
  271.     DCB_CAP_ATTR_BCN,
  272.  
  273.     __DCB_CAP_ATTR_ENUM_MAX,
  274.     DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
  275. };
  276.  
  277. /**
  278.  * enum dcbnl_numtcs_attrs - number of traffic classes
  279.  *
  280.  * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
  281.  * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
  282.  * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
  283.  *                               priority groups
  284.  * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
  285.  *                                support priority flow control
  286.  */
  287. enum dcbnl_numtcs_attrs {
  288.     DCB_NUMTCS_ATTR_UNDEFINED,
  289.     DCB_NUMTCS_ATTR_ALL,
  290.     DCB_NUMTCS_ATTR_PG,
  291.     DCB_NUMTCS_ATTR_PFC,
  292.  
  293.     __DCB_NUMTCS_ATTR_ENUM_MAX,
  294.     DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
  295. };
  296.  
  297. enum dcbnl_bcn_attrs{
  298.     DCB_BCN_ATTR_UNDEFINED = 0,
  299.  
  300.     DCB_BCN_ATTR_RP_0,
  301.     DCB_BCN_ATTR_RP_1,
  302.     DCB_BCN_ATTR_RP_2,
  303.     DCB_BCN_ATTR_RP_3,
  304.     DCB_BCN_ATTR_RP_4,
  305.     DCB_BCN_ATTR_RP_5,
  306.     DCB_BCN_ATTR_RP_6,
  307.     DCB_BCN_ATTR_RP_7,
  308.     DCB_BCN_ATTR_RP_ALL,
  309.  
  310.     DCB_BCN_ATTR_BCNA_0,
  311.     DCB_BCN_ATTR_BCNA_1,
  312.     DCB_BCN_ATTR_ALPHA,
  313.     DCB_BCN_ATTR_BETA,
  314.     DCB_BCN_ATTR_GD,
  315.     DCB_BCN_ATTR_GI,
  316.     DCB_BCN_ATTR_TMAX,
  317.     DCB_BCN_ATTR_TD,
  318.     DCB_BCN_ATTR_RMIN,
  319.     DCB_BCN_ATTR_W,
  320.     DCB_BCN_ATTR_RD,
  321.     DCB_BCN_ATTR_RU,
  322.     DCB_BCN_ATTR_WRTT,
  323.     DCB_BCN_ATTR_RI,
  324.     DCB_BCN_ATTR_C,
  325.     DCB_BCN_ATTR_ALL,
  326.  
  327.     __DCB_BCN_ATTR_ENUM_MAX,
  328.     DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
  329. };
  330.  
  331. /**
  332.  * enum dcb_general_attr_values - general DCB attribute values
  333.  *
  334.  * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
  335.  *
  336.  */
  337. enum dcb_general_attr_values {
  338.     DCB_ATTR_VALUE_UNDEFINED = 0xff
  339. };
  340.  
  341.  
  342. #endif /* __LINUX_DCBNL_H__ */
  343.