lnet/include/lnet/socklnd.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * <lnet/socklnd.h>
   5  *
   6  * #defines shared between socknal implementation and utilities
   7  */
   8 #ifndef __LNET_LNET_SOCKLND_H__
   9 #define __LNET_LNET_SOCKLND_H__
  10
  11 #include <lnet/types.h>
  12 #include <lnet/lib-types.h>
  13
  14 #define SOCKLND_CONN_NONE     (-1)
  15 #define SOCKLND_CONN_ANY        0
  16 #define SOCKLND_CONN_CONTROL    1
  17 #define SOCKLND_CONN_BULK_IN    2
  18 #define SOCKLND_CONN_BULK_OUT   3
  19 #define SOCKLND_CONN_NTYPES     4
  20
  21 typedef struct {
  22         __u32                   kshm_magic;     /* magic number of socklnd message */
  23         __u32                   kshm_version;   /* version of socklnd message */
  24         lnet_nid_t              kshm_src_nid;   /* sender's nid */
  25         lnet_nid_t              kshm_dst_nid;   /* destination nid */
  26         lnet_pid_t              kshm_src_pid;   /* sender's pid */
  27         lnet_pid_t              kshm_dst_pid;   /* destination pid */
  28         __u64                   kshm_src_incarnation; /* sender's incarnation */
  29         __u64                   kshm_dst_incarnation; /* destination's incarnation */
  30         __u32                   kshm_ctype;     /* connection type */
  31         __u32                   kshm_nips;      /* # IP addrs */
  32         __u32                   kshm_ips[0];    /* IP addrs */
  33 } WIRE_ATTR ksock_hello_msg_t;
  34
  35 typedef struct {
  36         lnet_hdr_t              ksnm_hdr;       /* lnet hdr */
  37         char                    ksnm_payload[0];/* lnet payload */
  38 } WIRE_ATTR ksock_lnet_msg_t;
  39
  40 typedef struct {
  41         __u32                   ksm_type;       /* type of socklnd message */
  42         __u32                   ksm_csum;       /* checksum if != 0 */
  43         __u64                   ksm_zc_req_cookie; /* ack required if != 0 */
  44         __u64                   ksm_zc_ack_cookie; /* ack if != 0 */
  45         union {
  46                 ksock_lnet_msg_t lnetmsg;       /* lnet message, it's empty if it's NOOP */
  47         } WIRE_ATTR ksm_u;
  48 } WIRE_ATTR ksock_msg_t;
  49
  50 #define KSOCK_MSG_NOOP          0xc0            /* ksm_u empty */
  51 #define KSOCK_MSG_LNET          0xc1            /* lnet msg */
  52
  53 /* We need to know this number to parse hello msg from ksocklnd in
  54  * other LND (usocklnd, for example) */
  55 #define KSOCK_PROTO_V2          2
  56
  57 #endif