lnet_libhandle_t me_lh;
lnet_process_id_t me_match_id;
unsigned int me_portal;
+ unsigned int me_pos; /* hash offset in mt_hash */
__u64 me_match_bits;
__u64 me_ignore_bits;
lnet_unlink_t me_unlink;
/* ME hash of RDMA portal */
#define LNET_MT_HASH_BITS 8
#define LNET_MT_HASH_SIZE (1 << LNET_MT_HASH_BITS)
+#define LNET_MT_HASH_MASK (LNET_MT_HASH_SIZE - 1)
+/* we allocate (LNET_MT_HASH_SIZE + 1) entries for lnet_match_table::mt_hash,
+ * the last entry is reserved for MEs with ignore-bits */
+#define LNET_MT_HASH_IGNORE LNET_MT_HASH_SIZE
+/* __u64 has 2^6 bits, so need 2^(LNET_MT_HASH_BITS - LNET_MT_BITS_U64) which
+ * is 4 __u64s as bit-map, and add an extra __u64 (only use one bit) for the
+ * ME-list with ignore-bits, which is mtable::mt_hash[LNET_MT_HASH_IGNORE] */
+#define LNET_MT_BITS_U64 6 /* 2^6 bits */
+#define LNET_MT_EXHAUSTED_BITS (LNET_MT_HASH_BITS - LNET_MT_BITS_U64)
+#define LNET_MT_EXHAUSTED_BMAP ((1 << LNET_MT_EXHAUSTED_BITS) + 1)
/* portal match table */
struct lnet_match_table {
unsigned int mt_cpt;
unsigned int mt_portal; /* portal index */
/* match table is set as "enabled" if there's non-exhausted MD
- * attached on mt_mlist, it's only valide for wildcard portal */
+ * attached on mt_mhash, it's only valide for wildcard portal */
unsigned int mt_enabled;
- cfs_list_t mt_mlist; /* matching list */
+ /* bitmap to flag whether MEs on mt_hash are exhausted or not */
+ __u64 mt_exhausted[LNET_MT_EXHAUSTED_BMAP];
cfs_list_t *mt_mhash; /* matching hash */
};