linux-kernel - [PATCH 7/7] cifs, ksmbd: Fix MAX

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Date:   Wed, 25 May 2022 15:26:59 +0100
From:   David Howells <dhowells@...hat.com>
To:     Steve French <smfrench@...il.com>
Cc:     dhowells@...hat.com, Shyam Prasad N <nspmangalore@...il.com>,
        Rohith Surabattula <rohiths.msft@...il.com>,
        Jeff Layton <jlayton@...nel.org>,
        Al Viro <viro@...iv.linux.org.uk>, linux-cifs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 7/7] cifs, ksmbd: Fix MAX_SGE count for softiwarp

From: Namjae Jeon <linkinjeon@...nel.org>


---

 fs/cifs/smbdirect.h       |    2 +-
 fs/ksmbd/transport_rdma.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/smbdirect.h b/fs/cifs/smbdirect.h
index 3a0d39e148e8..12a92054324a 100644
--- a/fs/cifs/smbdirect.h
+++ b/fs/cifs/smbdirect.h
@@ -226,7 +226,7 @@ struct smbd_buffer_descriptor_v1 {
 } __packed;
 
 /* Default maximum number of SGEs in a RDMA send/recv */
-#define SMBDIRECT_MAX_SGE	16
+#define SMBDIRECT_MAX_SGE	6
 /* The context for a SMBD request */
 struct smbd_request {
 	struct smbd_connection *info;
diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c
index e646d79554b8..70662b3bd590 100644
--- a/fs/ksmbd/transport_rdma.c
+++ b/fs/ksmbd/transport_rdma.c
@@ -42,7 +42,7 @@
 /* SMB_DIRECT negotiation timeout in seconds */
 #define SMB_DIRECT_NEGOTIATE_TIMEOUT		120
 
-#define SMB_DIRECT_MAX_SEND_SGES		8
+#define SMB_DIRECT_MAX_SEND_SGES		6
 #define SMB_DIRECT_MAX_RECV_SGES		1
 
 /*