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authorAndy Grover <andy.grover@oracle.com>2010-08-25 05:51:28 -0700
committerAndy Grover <andy.grover@oracle.com>2010-09-08 18:16:51 -0700
commit20c72bd5f5f902e5a8745d51573699605bf8d21c (patch)
tree6df337e07d423a0859ab92f25525570e134baba1 /net/rds/rds.h
parent59f740a6aeb2cde2f79fe0df38262d4c1ef35cd8 (diff)
downloadlinux-20c72bd5f5f902e5a8745d51573699605bf8d21c.tar.bz2
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>
Diffstat (limited to 'net/rds/rds.h')
-rw-r--r--net/rds/rds.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/net/rds/rds.h b/net/rds/rds.h
index aadaddba88a7..8103dcf8b976 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -316,8 +316,18 @@ struct rds_message {
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;