aboutsummaryrefslogtreecommitdiffstats
path: root/net/rds/rdma.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/rds/rdma.c')
-rw-r--r--net/rds/rdma.c33
1 files changed, 27 insertions, 6 deletions
diff --git a/net/rds/rdma.c b/net/rds/rdma.c
index 48781fe4431c..48064673fc76 100644
--- a/net/rds/rdma.c
+++ b/net/rds/rdma.c
@@ -738,13 +738,34 @@ int rds_cmsg_atomic(struct rds_sock *rs, struct rds_message *rm,
738 738
739 args = CMSG_DATA(cmsg); 739 args = CMSG_DATA(cmsg);
740 740
741 if (cmsg->cmsg_type == RDS_CMSG_ATOMIC_CSWP) { 741 /* Nonmasked & masked cmsg ops converted to masked hw ops */
742 rm->atomic.op_type = RDS_ATOMIC_TYPE_CSWP; 742 switch (cmsg->cmsg_type) {
743 rm->atomic.op_swap_add = args->cswp.swap; 743 case RDS_CMSG_ATOMIC_FADD:
744 rm->atomic.op_compare = args->cswp.compare; 744 rm->atomic.op_type = RDS_ATOMIC_TYPE_FADD;
745 } else { 745 rm->atomic.op_m_fadd.add = args->fadd.add;
746 rm->atomic.op_m_fadd.nocarry_mask = 0;
747 break;
748 case RDS_CMSG_MASKED_ATOMIC_FADD:
746 rm->atomic.op_type = RDS_ATOMIC_TYPE_FADD; 749 rm->atomic.op_type = RDS_ATOMIC_TYPE_FADD;
747 rm->atomic.op_swap_add = args->fadd.add; 750 rm->atomic.op_m_fadd.add = args->m_fadd.add;
751 rm->atomic.op_m_fadd.nocarry_mask = args->m_fadd.nocarry_mask;
752 break;
753 case RDS_CMSG_ATOMIC_CSWP:
754 rm->atomic.op_type = RDS_ATOMIC_TYPE_CSWP;
755 rm->atomic.op_m_cswp.compare = args->cswp.compare;
756 rm->atomic.op_m_cswp.swap = args->cswp.swap;
757 rm->atomic.op_m_cswp.compare_mask = ~0;
758 rm->atomic.op_m_cswp.swap_mask = ~0;
759 break;
760 case RDS_CMSG_MASKED_ATOMIC_CSWP:
761 rm->atomic.op_type = RDS_ATOMIC_TYPE_CSWP;
762 rm->atomic.op_m_cswp.compare = args->m_cswp.compare;
763 rm->atomic.op_m_cswp.swap = args->m_cswp.swap;
764 rm->atomic.op_m_cswp.compare_mask = args->m_cswp.compare_mask;
765 rm->atomic.op_m_cswp.swap_mask = args->m_cswp.swap_mask;
766 break;
767 default:
768 BUG(); /* should never happen */
748 } 769 }
749 770
750 rm->atomic.op_notify = !!(args->flags & RDS_RDMA_NOTIFY_ME); 771 rm->atomic.op_notify = !!(args->flags & RDS_RDMA_NOTIFY_ME);