Commit efa2afc3 authored by Xiao Yang's avatar Xiao Yang Committed by Jason Gunthorpe
Browse files

RDMA: Extend RDMA user ABI to support atomic write 

1) Define new atomic write request/completion in userspace.
2) Define new atomic write capability in userspace.

Link: https://lore.kernel.org/r/1669905432-14-2-git-send-email-yangx.jy@fujitsu.com


Signed-off-by: default avatarXiao Yang <yangx.jy@fujitsu.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 10aa7cd3

include/uapi/rdma/ib_user_verbs.h

+4 −0
Original line number Diff line number Diff line
@@ -466,6 +466,7 @@ enum ib_uverbs_wc_opcode { 
	IB_UVERBS_WC_BIND_MW = 5,

	IB_UVERBS_WC_LOCAL_INV = 6,

	IB_UVERBS_WC_TSO = 7,

	IB_UVERBS_WC_ATOMIC_WRITE = 9,

};



struct ib_uverbs_wc {
@@ -784,6 +785,7 @@ enum ib_uverbs_wr_opcode { 
	IB_UVERBS_WR_RDMA_READ_WITH_INV = 11,

	IB_UVERBS_WR_MASKED_ATOMIC_CMP_AND_SWP = 12,

	IB_UVERBS_WR_MASKED_ATOMIC_FETCH_AND_ADD = 13,

	IB_UVERBS_WR_ATOMIC_WRITE = 15,

	/* Review enum ib_wr_opcode before modifying this */

};
@@ -1331,6 +1333,8 @@ enum ib_uverbs_device_cap_flags { 
	/* Deprecated. Please use IB_UVERBS_RAW_PACKET_CAP_SCATTER_FCS. */

	IB_UVERBS_DEVICE_RAW_SCATTER_FCS = 1ULL << 34,

	IB_UVERBS_DEVICE_PCI_WRITE_END_PADDING = 1ULL << 36,

	/* Atomic write attributes */

	IB_UVERBS_DEVICE_ATOMIC_WRITE = 1ULL << 40,

};



enum ib_uverbs_raw_packet_caps {