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From: Xiao Yang <yangx.jy@fujitsu.com>
To: <linux-rdma@vger.kernel.org>
Cc: <yanjun.zhu@linux.dev>, <rpearsonhpe@gmail.com>, <jgg@nvidia.com>,
	<y-goto@fujitsu.com>, <lizhijian@fujitsu.com>,
	<tomasz.gromadzki@intel.com>, <ira.weiny@intel.com>,
	Xiao Yang <yangx.jy@fujitsu.com>
Subject: [PATCH v4 3/3] RDMA/rxe: Add RDMA Atomic Write attribute for rxe device
Date: Mon, 18 Apr 2022 14:12:44 +0800	[thread overview]
Message-ID: <20220418061244.89025-4-yangx.jy@fujitsu.com> (raw)
In-Reply-To: <20220418061244.89025-1-yangx.jy@fujitsu.com>

The attribute shows that rxe device supports RDMA Atomic Write operation.

Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
---
 drivers/infiniband/sw/rxe/rxe_param.h | 5 +++++
 include/rdma/ib_verbs.h               | 1 +
 include/uapi/rdma/ib_user_verbs.h     | 2 ++
 3 files changed, 8 insertions(+)

diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h
index 568a7cbd13d4..05796f4007cb 100644
--- a/drivers/infiniband/sw/rxe/rxe_param.h
+++ b/drivers/infiniband/sw/rxe/rxe_param.h
@@ -51,7 +51,12 @@ enum rxe_device_param {
 					| IB_DEVICE_SRQ_RESIZE
 					| IB_DEVICE_MEM_MGT_EXTENSIONS
 					| IB_DEVICE_MEM_WINDOW
+#ifdef CONFIG_64BIT
+					| IB_DEVICE_MEM_WINDOW_TYPE_2B
+					| IB_DEVICE_ATOMIC_WRITE,
+#else
 					| IB_DEVICE_MEM_WINDOW_TYPE_2B,
+#endif /* CONFIG_64BIT */
 	RXE_MAX_SGE			= 32,
 	RXE_MAX_WQE_SIZE		= sizeof(struct rxe_send_wqe) +
 					  sizeof(struct ib_sge) * RXE_MAX_SGE,
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 18d706892e97..f5f81e5d1179 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 {
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 175ade79e358..4a7dbabf1792 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -1333,6 +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 {
-- 
2.34.1




  parent reply	other threads:[~2022-04-18  6:12 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-18  6:12 [PATCH v4 0/3] RDMA/rxe: Add RDMA Atomic Write operation Xiao Yang
2022-04-18  6:12 ` [PATCH v4 1/3] RDMA/rxe: Rename send_atomic_ack() and atomic member of struct resp_res Xiao Yang
2022-04-18  6:12 ` [PATCH v4 2/3] RDMA/rxe: Support RDMA Atomic Write operation Xiao Yang
2022-04-18  6:12 ` Xiao Yang [this message]
2022-04-20  6:54 ` [PATCH v4 0/3] RDMA/rxe: Add " Leon Romanovsky
2022-04-20  7:08   ` yangx.jy
2022-04-27  7:46     ` yangx.jy
2022-05-13  3:46 ` yangx.jy
2022-05-13 11:46   ` Jason Gunthorpe
2022-05-13 15:45     ` Bob Pearson
2022-07-04 13:45 ` Jason Gunthorpe
2022-07-05  1:50   ` yangx.jy

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