We plan to buy a few Mellanox NICs that supports extended RDMA operations including masked atomic (IBV_EXP_WR_EXT_MASKED_ATOMIC_FETCH_AND_ADD). I mean the atomic operations on multiple fields described in Appendix B of RDMA aware programming user manual (http://www.mellanox.com/related-docs/prod_software/RDMA_Aware_Programming_user_manual.pdf ).
Would the following ones support this feature?
http://www.mellanox.com/page/products_dyn?product_family=201&mtag=connectx_4_vpi_card
http://www.mellanox.com/page/products_dyn?product_family=142&mtag=connect_ib