diff options
| author | Xiao Yang <yangx.jy@fujitsu.com> | 2022-12-01 14:37:06 +0000 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-01 19:51:09 -0400 |
| commit | 3ff81e827b8d5cea36ff374a11c200b4306f45d2 (patch) | |
| tree | 6dcc40071bac07fada89b2c9c4f536d48d24168f /include/rdma | |
| parent | efa2afc3969e166702fd2ae3cfb1a7a195ef3533 (diff) | |
RDMA: Extend RDMA kernel ABI to support atomic write
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>
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/ib_pack.h | 2 | ||||
| -rw-r--r-- | include/rdma/ib_verbs.h | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/include/rdma/ib_pack.h b/include/rdma/ib_pack.h index a9162f25beaf..f932d164af63 100644 --- a/include/rdma/ib_pack.h +++ b/include/rdma/ib_pack.h @@ -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), diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 77dd9148815b..df6bb26ba0be 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -270,6 +270,7 @@ enum ib_device_cap_flags { /* The device supports padding incoming writes to cacheline. */ IB_DEVICE_PCI_WRITE_END_PADDING = IB_UVERBS_DEVICE_PCI_WRITE_END_PADDING, + IB_DEVICE_ATOMIC_WRITE = IB_UVERBS_DEVICE_ATOMIC_WRITE, }; enum ib_kernel_cap_flags { @@ -982,6 +983,7 @@ enum ib_wc_opcode { IB_WC_BIND_MW = IB_UVERBS_WC_BIND_MW, IB_WC_LOCAL_INV = IB_UVERBS_WC_LOCAL_INV, IB_WC_LSO = IB_UVERBS_WC_TSO, + IB_WC_ATOMIC_WRITE = IB_UVERBS_WC_ATOMIC_WRITE, IB_WC_REG_MR, IB_WC_MASKED_COMP_SWAP, IB_WC_MASKED_FETCH_ADD, @@ -1325,6 +1327,7 @@ enum ib_wr_opcode { IB_UVERBS_WR_MASKED_ATOMIC_CMP_AND_SWP, IB_WR_MASKED_ATOMIC_FETCH_AND_ADD = IB_UVERBS_WR_MASKED_ATOMIC_FETCH_AND_ADD, + IB_WR_ATOMIC_WRITE = IB_UVERBS_WR_ATOMIC_WRITE, /* These are kernel only and can not be issued by userspace */ IB_WR_REG_MR = 0x20, |