#include <uapi/linux/lnet/socklnd.h>
struct ksock_hello_msg {
- __u32 kshm_magic; /* magic number of socklnd message */
- __u32 kshm_version; /* version of socklnd message */
+ __u32 kshm_magic; /* LNET_PROTO_MAGIC */
+ __u32 kshm_version; /* KSOCK_PROTO_V* */
+ struct lnet_nid kshm_src_nid; /* sender's nid */
+ struct lnet_nid kshm_dst_nid; /* destination nid */
+ lnet_pid_t kshm_src_pid; /* sender's pid */
+ lnet_pid_t kshm_dst_pid; /* destination pid */
+ __u64 kshm_src_incarnation; /* sender's incarnation */
+ __u64 kshm_dst_incarnation; /* destination's incarnation */
+ __u32 kshm_ctype; /* SOCKLND_CONN_* */
+ __u32 kshm_nips; /* always sent as zero */
+ __u32 kshm_ips[0]; /* deprecated */
+} __packed;
+
+struct ksock_hello_msg_nid4 {
+ __u32 kshm_magic; /* LNET_PROTO_MAGIC */
+ __u32 kshm_version; /* KSOCK_PROTO_V* */
lnet_nid_t kshm_src_nid; /* sender's nid */
lnet_nid_t kshm_dst_nid; /* destination nid */
lnet_pid_t kshm_src_pid; /* sender's pid */
lnet_pid_t kshm_dst_pid; /* destination pid */
__u64 kshm_src_incarnation; /* sender's incarnation */
__u64 kshm_dst_incarnation; /* destination's incarnation */
- __u32 kshm_ctype; /* connection type */
- __u32 kshm_nips; /* # IP addrs */
- __u32 kshm_ips[0]; /* IP addrs */
+ __u32 kshm_ctype; /* SOCKLND_CONN_* */
+ __u32 kshm_nips; /* sent as zero */
+ __u32 kshm_ips[0]; /* deprecated */
} __packed;
-struct ksock_lnet_msg {
- struct lnet_hdr ksnm_hdr; /* lnet hdr */
-
- /*
- * ksnm_payload is removed because of winnt compiler's limitation:
- * zero-sized array can only be placed at the tail of [nested]
- * structure definitions. lnet payload will be stored just after
- * the body of structure struct ksock_lnet_msg
- */
+struct ksock_msg_hdr {
+ __u32 ksh_type; /* type of socklnd message */
+ __u32 ksh_csum; /* checksum if != 0 */
+ __u64 ksh_zc_cookies[2]; /* Zero-Copy request/ACK
+ * cookie
+ */
} __packed;
+#define KSOCK_MSG_NOOP 0xc0 /* empty */
+#define KSOCK_MSG_LNET 0xc1 /* lnet msg */
+
struct ksock_msg {
- __u32 ksm_type; /* type of socklnd message */
- __u32 ksm_csum; /* checksum if != 0 */
- __u64 ksm_zc_cookies[2]; /* Zero-Copy request/ACK cookie */
+ struct ksock_msg_hdr ksm_kh;
union {
- struct ksock_lnet_msg lnetmsg; /* lnet message, it's empty if it's NOOP */
+ /* case ksm_kh.ksh_type == KSOCK_MSG_NOOP */
+ /* - nothing */
+ /* case ksm_kh.ksh_type == KSOCK_MSG_LNET */
+ struct lnet_hdr_nid4 lnetmsg_nid4;
+ /* case ksm_kh.ksh_type == KSOCK_MSG_LNET &&
+ * kshm_version >= KSOCK_PROTO_V4
+ */
+ struct lnet_hdr_nid16 lnetmsg_nid16;
} __packed ksm_u;
} __packed;
-
-#define KSOCK_MSG_NOOP 0xc0 /* ksm_u empty */
-#define KSOCK_MSG_LNET 0xc1 /* lnet msg */
+#define ksm_type ksm_kh.ksh_type
+#define ksm_csum ksm_kh.ksh_csum
+#define ksm_zc_cookies ksm_kh.ksh_zc_cookies
/* We need to know this number to parse hello msg from ksocklnd in
* other LND (usocklnd, for example) */
#define KSOCK_PROTO_V2 2
#define KSOCK_PROTO_V3 3
+#define KSOCK_PROTO_V4 4
#endif