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oasis-root

Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

nexthop.h (4066B)

    

  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. #ifndef _LINUX_NEXTHOP_H
  3. #define _LINUX_NEXTHOP_H
  5. #include <linux/types.h>
  7. struct nhmsg {
  8. 	unsigned char	nh_family;
  9. 	unsigned char	nh_scope;     /* return only */
  10. 	unsigned char	nh_protocol;  /* Routing protocol that installed nh */
  11. 	unsigned char	resvd;
  12. 	unsigned int	nh_flags;     /* RTNH_F flags */
  13. };
  15. /* entry in a nexthop group */
  16. struct nexthop_grp {
  17. 	__u32	id;	  /* nexthop id - must exist */
  18. 	__u8	weight;   /* weight of this nexthop */
  19. 	__u8	weight_high;	/* high order bits of weight */
  20. 	__u16	resvd2;
  21. };
  23. static __inline__ __u16 nexthop_grp_weight(const struct nexthop_grp *entry)
  24. {
  25. 	return ((entry->weight_high << 8) | entry->weight) + 1;
  26. }
  28. enum {
  29. 	NEXTHOP_GRP_TYPE_MPATH,  /* hash-threshold nexthop group
  30. 				  * default type if not specified
  31. 				  */
  32. 	NEXTHOP_GRP_TYPE_RES,    /* resilient nexthop group */
  33. 	__NEXTHOP_GRP_TYPE_MAX,
  34. };
  36. #define NEXTHOP_GRP_TYPE_MAX (__NEXTHOP_GRP_TYPE_MAX - 1)
  38. #define NHA_OP_FLAG_DUMP_STATS		BIT(0)
  39. #define NHA_OP_FLAG_DUMP_HW_STATS	BIT(1)
  41. /* Response OP_FLAGS. */
  42. #define NHA_OP_FLAG_RESP_GRP_RESVD_0	BIT(31)	/* Dump clears resvd fields. */
  44. enum {
  45. 	NHA_UNSPEC,
  46. 	NHA_ID,		/* u32; id for nexthop. id == 0 means auto-assign */
  48. 	NHA_GROUP,	/* array of nexthop_grp */
  49. 	NHA_GROUP_TYPE,	/* u16 one of NEXTHOP_GRP_TYPE */
  50. 	/* if NHA_GROUP attribute is added, no other attributes can be set */
  52. 	NHA_BLACKHOLE,	/* flag; nexthop used to blackhole packets */
  53. 	/* if NHA_BLACKHOLE is added, OIF, GATEWAY, ENCAP can not be set */
  55. 	NHA_OIF,	/* u32; nexthop device */
  56. 	NHA_GATEWAY,	/* be32 (IPv4) or in6_addr (IPv6) gw address */
  57. 	NHA_ENCAP_TYPE, /* u16; lwt encap type */
  58. 	NHA_ENCAP,	/* lwt encap data */
  60. 	/* NHA_OIF can be appended to dump request to return only
  61. 	 * nexthops using given device
  62. 	 */
  63. 	NHA_GROUPS,	/* flag; only return nexthop groups in dump */
  64. 	NHA_MASTER,	/* u32;  only return nexthops with given master dev */
  66. 	NHA_FDB,	/* flag; nexthop belongs to a bridge fdb */
  67. 	/* if NHA_FDB is added, OIF, BLACKHOLE, ENCAP cannot be set */
  69. 	/* nested; resilient nexthop group attributes */
  70. 	NHA_RES_GROUP,
  71. 	/* nested; nexthop bucket attributes */
  72. 	NHA_RES_BUCKET,
  74. 	/* u32; operation-specific flags */
  75. 	NHA_OP_FLAGS,
  77. 	/* nested; nexthop group stats */
  78. 	NHA_GROUP_STATS,
  80. 	/* u32; nexthop hardware stats enable */
  81. 	NHA_HW_STATS_ENABLE,
  83. 	/* u32; read-only; whether any driver collects HW stats */
  84. 	NHA_HW_STATS_USED,
  86. 	__NHA_MAX,
  87. };
  89. #define NHA_MAX	(__NHA_MAX - 1)
  91. enum {
  92. 	NHA_RES_GROUP_UNSPEC,
  93. 	/* Pad attribute for 64-bit alignment. */
  94. 	NHA_RES_GROUP_PAD = NHA_RES_GROUP_UNSPEC,
  96. 	/* u16; number of nexthop buckets in a resilient nexthop group */
  97. 	NHA_RES_GROUP_BUCKETS,
  98. 	/* clock_t as u32; nexthop bucket idle timer (per-group) */
  99. 	NHA_RES_GROUP_IDLE_TIMER,
  100. 	/* clock_t as u32; nexthop unbalanced timer */
  101. 	NHA_RES_GROUP_UNBALANCED_TIMER,
  102. 	/* clock_t as u64; nexthop unbalanced time */
  103. 	NHA_RES_GROUP_UNBALANCED_TIME,
  105. 	__NHA_RES_GROUP_MAX,
  106. };
  108. #define NHA_RES_GROUP_MAX	(__NHA_RES_GROUP_MAX - 1)
  110. enum {
  111. 	NHA_RES_BUCKET_UNSPEC,
  112. 	/* Pad attribute for 64-bit alignment. */
  113. 	NHA_RES_BUCKET_PAD = NHA_RES_BUCKET_UNSPEC,
  115. 	/* u16; nexthop bucket index */
  116. 	NHA_RES_BUCKET_INDEX,
  117. 	/* clock_t as u64; nexthop bucket idle time */
  118. 	NHA_RES_BUCKET_IDLE_TIME,
  119. 	/* u32; nexthop id assigned to the nexthop bucket */
  120. 	NHA_RES_BUCKET_NH_ID,
  122. 	__NHA_RES_BUCKET_MAX,
  123. };
  125. #define NHA_RES_BUCKET_MAX	(__NHA_RES_BUCKET_MAX - 1)
  127. enum {
  128. 	NHA_GROUP_STATS_UNSPEC,
  130. 	/* nested; nexthop group entry stats */
  131. 	NHA_GROUP_STATS_ENTRY,
  133. 	__NHA_GROUP_STATS_MAX,
  134. };
  136. #define NHA_GROUP_STATS_MAX	(__NHA_GROUP_STATS_MAX - 1)
  138. enum {
  139. 	NHA_GROUP_STATS_ENTRY_UNSPEC,
  141. 	/* u32; nexthop id of the nexthop group entry */
  142. 	NHA_GROUP_STATS_ENTRY_ID,
  144. 	/* uint; number of packets forwarded via the nexthop group entry */
  145. 	NHA_GROUP_STATS_ENTRY_PACKETS,
  147. 	/* uint; number of packets forwarded via the nexthop group entry in
  148. 	 * hardware
  149. 	 */
  150. 	NHA_GROUP_STATS_ENTRY_PACKETS_HW,
  152. 	__NHA_GROUP_STATS_ENTRY_MAX,
  153. };
  155. #define NHA_GROUP_STATS_ENTRY_MAX	(__NHA_GROUP_STATS_ENTRY_MAX - 1)
  157. #endif