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.
Signed-off-by: Xiao Yang <yangx.jy@xxxxxxxxxxx>
---
include/rdma/ib_pack.h | 2 ++
include/rdma/ib_verbs.h | 3 +++
2 files changed, 5 insertions(+)
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 975d6e9efbcb..19bed1fb8e55 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 {
@@ -985,6 +986,7 @@ enum ib_wc_opcode {
IB_WC_REG_MR,
IB_WC_MASKED_COMP_SWAP,
IB_WC_MASKED_FETCH_ADD,
+ IB_WC_ATOMIC_WRITE = IB_UVERBS_WC_ATOMIC_WRITE,
/*
* Set value of IB_WC_RECV so consumers can test if a completion is a
* receive by testing (opcode & IB_WC_RECV).
@@ -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,
--
2.34.1
