lnet/include/uapi/linux/lnet/lnet-nl.h

   1 // SPDX-License-Identifier: LGPL-2.0
   2
   3 /* Copyright (c) 2021,  UT-Battelle, LLC
   4  *
   5  * Author: James Simmons <jsimmons@infradead.org>
   6  */
   7
   8 #ifndef __UAPI_LNET_NL_H__
   9 #define __UAPI_LNET_NL_H__
  10
  11 #include <linux/types.h>
  12
  13 enum lnet_nl_key_format {
  14         /* Is it FLOW or BLOCK */
  15         LNKF_FLOW               = 1,
  16         /* Is it SEQUENCE or MAPPING */
  17         LNKF_MAPPING            = 2,
  18         LNKF_SEQUENCE           = 4,
  19 };
  20
  21 /**
  22  * enum lnet_nl_scalar_attrs            - scalar LNet netlink attributes used
  23  *                                        to compose messages for sending or
  24  *                                        receiving.
  25  *
  26  * @LN_SCALAR_ATTR_UNSPEC:              unspecified attribute to catch errors
  27  * @LN_SCALAR_ATTR_PAD:                 padding for 64-bit attributes, ignore
  28  *
  29  * @LN_SCALAR_ATTR_LIST:                List of scalar attributes (NLA_NESTED)
  30  * @LN_SCALAR_ATTR_LIST_SIZE:           Number of items in scalar list (NLA_U16)
  31  * @LN_SCALAR_ATTR_INDEX:               True Netlink attr value (NLA_U16)
  32  * @LN_SCALAR_ATTR_NLA_TYPE:            Data format for value part of the pair
  33  *                                      (NLA_U16)
  34  * @LN_SCALAR_ATTR_VALUE:               String value of key part of the pair.
  35  *                                      (NLA_NUL_STRING)
  36  * @LN_SCALAR_ATTR_INT_VALUE:           Numeric value of key part of the pair.
  37  *                                      (NLA_S64)
  38  * @LN_SCALAR_ATTR_KEY_FORMAT:          LNKF_* format of the key value pair.
  39  */
  40 enum lnet_nl_scalar_attrs {
  41         LN_SCALAR_ATTR_UNSPEC = 0,
  42         LN_SCALAR_ATTR_PAD = LN_SCALAR_ATTR_UNSPEC,
  43
  44         LN_SCALAR_ATTR_LIST,
  45         LN_SCALAR_ATTR_LIST_SIZE,
  46         LN_SCALAR_ATTR_INDEX,
  47         LN_SCALAR_ATTR_NLA_TYPE,
  48         LN_SCALAR_ATTR_VALUE,
  49         LN_SCALAR_ATTR_INT_VALUE,
  50         LN_SCALAR_ATTR_KEY_FORMAT,
  51
  52         __LN_SCALAR_ATTR_MAX_PLUS_ONE,
  53 };
  54
  55 #define LN_SCALAR_MAX (__LN_SCALAR_ATTR_MAX_PLUS_ONE - 1)
  56
  57 struct ln_key_props {
  58         char                    *lkp_value;
  59         __u16                   lkp_key_format;
  60         __u16                   lkp_data_type;
  61 };
  62
  63 struct ln_key_list {
  64         __u16                   lkl_maxattr;
  65         struct ln_key_props     lkl_list[];
  66 };
  67
  68 #endif /* __UAPI_LNET_NL_H__ */