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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.

Xiao Yang committed 3 years ago

Commit efa2afc1 parent 10aa7cd1 file · +4 −0Browse files

Unified · Split

include/uapi/rdma/ib_user_verbs.h+4−0
@@ -466,6 +466,7 @@ enum ib_uverbs_wc_opcode { · 465 unmodified lines
466 IB_UVERBS_WC_BIND_MW = 5,466 IB_UVERBS_WC_BIND_MW = 5,
467 IB_UVERBS_WC_LOCAL_INV = 6,467 IB_UVERBS_WC_LOCAL_INV = 6,
468 IB_UVERBS_WC_TSO = 7,468 IB_UVERBS_WC_TSO = 7,
469 IB_UVERBS_WC_ATOMIC_WRITE = 9,
469};470};
470 471
471struct ib_uverbs_wc {472struct ib_uverbs_wc {
@@ -784,6 +785,7 @@ enum ib_uverbs_wr_opcode { · 312 unmodified lines
784 IB_UVERBS_WR_RDMA_READ_WITH_INV = 11,785 IB_UVERBS_WR_RDMA_READ_WITH_INV = 11,
785 IB_UVERBS_WR_MASKED_ATOMIC_CMP_AND_SWP = 12,786 IB_UVERBS_WR_MASKED_ATOMIC_CMP_AND_SWP = 12,
786 IB_UVERBS_WR_MASKED_ATOMIC_FETCH_AND_ADD = 13,787 IB_UVERBS_WR_MASKED_ATOMIC_FETCH_AND_ADD = 13,
788 IB_UVERBS_WR_ATOMIC_WRITE = 15,
787 /* Review enum ib_wr_opcode before modifying this */789 /* Review enum ib_wr_opcode before modifying this */
788};790};
789 791
@@ -1331,6 +1333,8 @@ enum ib_uverbs_device_cap_flags { · 541 unmodified lines
1331 /* Deprecated. Please use IB_UVERBS_RAW_PACKET_CAP_SCATTER_FCS. */1333 /* Deprecated. Please use IB_UVERBS_RAW_PACKET_CAP_SCATTER_FCS. */
1332 IB_UVERBS_DEVICE_RAW_SCATTER_FCS = 1ULL << 34,1334 IB_UVERBS_DEVICE_RAW_SCATTER_FCS = 1ULL << 34,
1333 IB_UVERBS_DEVICE_PCI_WRITE_END_PADDING = 1ULL << 36,1335 IB_UVERBS_DEVICE_PCI_WRITE_END_PADDING = 1ULL << 36,
1336 /* Atomic write attributes */
1337 IB_UVERBS_DEVICE_ATOMIC_WRITE = 1ULL << 40,
1334};1338};
1335 1339
1336enum ib_uverbs_raw_packet_caps {1340enum ib_uverbs_raw_packet_caps {