net/rds: Handle ODP mr registration/unregistration
On-Demand-Paging MRs are registered using ib_reg_user_mr and
unregistered with ib_dereg_mr.
Signed-off-by: Hans Westgaard Ry <hans.westgaard.ry@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 53e8691..e4a6035 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -40,7 +40,6 @@
#ifdef ATOMIC64_INIT
#define KERNEL_HAS_ATOMIC64
#endif
-
#ifdef RDS_DEBUG
#define rdsdebug(fmt, args...) pr_debug("%s(): " fmt, __func__ , ##args)
#else
@@ -478,6 +477,9 @@ struct rds_message {
struct rds_notifier *op_notifier;
struct rds_mr *op_rdma_mr;
+
+ u64 op_odp_addr;
+ struct rds_mr *op_odp_mr;
} rdma;
struct rm_data_op {
unsigned int op_active:1;
@@ -573,7 +575,8 @@ struct rds_transport {
void (*exit)(void);
void *(*get_mr)(struct scatterlist *sg, unsigned long nr_sg,
struct rds_sock *rs, u32 *key_ret,
- struct rds_connection *conn);
+ struct rds_connection *conn,
+ u64 start, u64 length, int need_odp);
void (*sync_mr)(void *trans_private, int direction);
void (*free_mr)(void *trans_private, int invalidate);
void (*flush_mrs)(void);
@@ -956,6 +959,12 @@ static inline bool rds_destroy_pending(struct rds_connection *conn)
(conn->c_trans->t_unloading && conn->c_trans->t_unloading(conn));
}
+enum {
+ ODP_NOT_NEEDED,
+ ODP_ZEROBASED,
+ ODP_VIRTUAL
+};
+
/* stats.c */
DECLARE_PER_CPU_SHARED_ALIGNED(struct rds_statistics, rds_stats);
#define rds_stats_inc_which(which, member) do { \