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RDMA: Extend RDMA kernel ABI to support atomic write

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1) Define new atomic write request/completion in kernel.
2) Define new atomic write capability in kernel.
3) Define new atomic write opcode for RC service in packet.

Link: https://lore.kernel.org/r/1669905432-14-3-git-send-email-yangx.jy@fujitsu.com
Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Xiao Yang
2022-12-01 14:37:06 +00:00
committed by Jason Gunthorpe
parent efa2afc396
commit 3ff81e827b
2 changed files with 5 additions and 0 deletions
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2
include/rdma/ib_pack.h
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@@ -84,6 +84,7 @@ enum {
/* opcode 0x15 is reserved */
IB_OPCODE_SEND_LAST_WITH_INVALIDATE = 0x16,
IB_OPCODE_SEND_ONLY_WITH_INVALIDATE = 0x17,
IB_OPCODE_ATOMIC_WRITE = 0x1D,
/* real constants follow -- see comment about above IB_OPCODE()
macro for more details */
@@ -112,6 +113,7 @@ enum {
IB_OPCODE(RC, FETCH_ADD),
IB_OPCODE(RC, SEND_LAST_WITH_INVALIDATE),
IB_OPCODE(RC, SEND_ONLY_WITH_INVALIDATE),
IB_OPCODE(RC, ATOMIC_WRITE),
/* UC */
IB_OPCODE(UC, SEND_FIRST),