RDS: Implement masked atomic operations
Add two CMSGs for masked versions of cswp and fadd. args
struct modified to use a union for different atomic op type's
arguments. Change IB to do masked atomic ops. Atomic op type
in rds_message similarly unionized.
Signed-off-by: Andy Grover <andy.grover@oracle.com>
diff --git a/net/rds/rds.h b/net/rds/rds.h
index aadaddb..8103dcf 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -316,8 +316,18 @@
struct {
struct rm_atomic_op {
int op_type;
- uint64_t op_swap_add;
- uint64_t op_compare;
+ union {
+ struct {
+ uint64_t compare;
+ uint64_t swap;
+ uint64_t compare_mask;
+ uint64_t swap_mask;
+ } op_m_cswp;
+ struct {
+ uint64_t add;
+ uint64_t nocarry_mask;
+ } op_m_fadd;
+ };
u32 op_rkey;
u64 op_remote_addr;