linux-kernel - [RFC PATCH v2 7/9] RDMA/rxe: Implement flush completion

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20220125085041.49175-8-lizhijian@cn.fujitsu.com>
Date:   Tue, 25 Jan 2022 16:50:39 +0800
From:   Li Zhijian <lizhijian@...fujitsu.com>
To:     <linux-rdma@...r.kernel.org>, <zyjzyj2000@...il.com>,
        <jgg@...pe.ca>, <aharonl@...dia.com>, <leon@...nel.org>,
        <tom@...pey.com>, <tomasz.gromadzki@...el.com>
CC:     <linux-kernel@...r.kernel.org>, <mbloch@...dia.com>,
        <liangwenpeng@...wei.com>, <yangx.jy@...itsu.com>,
        <y-goto@...itsu.com>, <rpearsonhpe@...il.com>,
        <dan.j.williams@...el.com>, Li Zhijian <lizhijian@...fujitsu.com>
Subject: [RFC PATCH v2 7/9] RDMA/rxe: Implement flush completion

Introduce a new IB_UVERBS_WC_FLUSH code to tell userspace a FLUSH
completion.

Signed-off-by: Li Zhijian <lizhijian@...fujitsu.com>
---
 drivers/infiniband/sw/rxe/rxe_comp.c | 4 +++-
 include/rdma/ib_verbs.h              | 1 +
 include/uapi/rdma/ib_user_verbs.h    | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_comp.c b/drivers/infiniband/sw/rxe/rxe_comp.c
index f363fe3fa414..e5b9d07eba93 100644
--- a/drivers/infiniband/sw/rxe/rxe_comp.c
+++ b/drivers/infiniband/sw/rxe/rxe_comp.c
@@ -104,6 +104,7 @@ static enum ib_wc_opcode wr_to_wc_opcode(enum ib_wr_opcode opcode)
 	case IB_WR_LOCAL_INV:			return IB_WC_LOCAL_INV;
 	case IB_WR_REG_MR:			return IB_WC_REG_MR;
 	case IB_WR_BIND_MW:			return IB_WC_BIND_MW;
+	case IB_WR_RDMA_FLUSH:			return IB_WC_RDMA_FLUSH;
 
 	default:
 		return 0xff;
@@ -261,7 +262,8 @@ static inline enum comp_state check_ack(struct rxe_qp *qp,
 		 */
 	case IB_OPCODE_RC_RDMA_READ_RESPONSE_MIDDLE:
 		if (wqe->wr.opcode != IB_WR_RDMA_READ &&
-		    wqe->wr.opcode != IB_WR_RDMA_READ_WITH_INV) {
+		    wqe->wr.opcode != IB_WR_RDMA_READ_WITH_INV &&
+		    wqe->wr.opcode != IB_WR_RDMA_FLUSH) {
 			wqe->status = IB_WC_FATAL_ERR;
 			return COMPST_ERROR;
 		}
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index d8555b6e4eba..5242acb73004 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -965,6 +965,7 @@ const char *__attribute_const__ ib_wc_status_msg(enum ib_wc_status status);
 enum ib_wc_opcode {
 	IB_WC_SEND = IB_UVERBS_WC_SEND,
 	IB_WC_RDMA_WRITE = IB_UVERBS_WC_RDMA_WRITE,
+	IB_WC_RDMA_FLUSH = IB_UVERBS_WC_FLUSH,
 	IB_WC_RDMA_READ = IB_UVERBS_WC_RDMA_READ,
 	IB_WC_COMP_SWAP = IB_UVERBS_WC_COMP_SWAP,
 	IB_WC_FETCH_ADD = IB_UVERBS_WC_FETCH_ADD,
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index be1f9dca08a8..d43671fef93e 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -476,6 +476,7 @@ enum ib_uverbs_wc_opcode {
 	IB_UVERBS_WC_BIND_MW = 5,
 	IB_UVERBS_WC_LOCAL_INV = 6,
 	IB_UVERBS_WC_TSO = 7,
+	IB_UVERBS_WC_FLUSH = 8,
 };
 
 struct ib_uverbs_wc {
-- 
2.31.1