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Tue, 13 Sep 2022 22:20:01 +0000 From: Tom Talpey To: smfrench@gmail.com, linux-cifs@vger.kernel.org Cc: linkinjeon@kernel.org, senozhatsky@chromium.org, bmt@zurich.ibm.com, Tom Talpey Subject: [PATCH 4/6] Reduce server smbdirect max send/receive segment sizes Date: Tue, 13 Sep 2022 22:19:35 +0000 Message-Id: <27ad44f89fa239f69806241aa65869cd58a04d3d.1663103255.git.tom@talpey.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: X-ClientProxiedBy: BYAPR08CA0047.namprd08.prod.outlook.com (2603:10b6:a03:117::24) To SN6PR01MB4445.prod.exchangelabs.com (2603:10b6:805:e2::33) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN6PR01MB4445:EE_|BL0PR0102MB3378:EE_ X-MS-Office365-Filtering-Correlation-Id: 6c13c911-1a38-496f-b20f-08da95d619bb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 3MOO5DX8X74QYjHtXhIJCGB8k0d7CcHYa3b+w/E4OcDm6FfqH78BlJ/TU7Wfu2JWXcpMPynz7C1Hujiv54n/OMQWrFI3poLt/Kyu3Cyz0e93rTOhypOwVS+RdHKKtdeOLVFz9FnwXb69tjVsAAj4AwOPhxCh8iv7PKk+hnlBL/Cwzx1Ik0YwB29z4EnXFcQrOPDAJDLzhxtTCaaAnxhg+/5zhxF+fbjPMy2Of3ToUPHsBVzIm/NMoXbFZDVFFa/7h5axhezDvKLHC061yzORB2o1ksG/gahAd0gN7A51X/Lj3MUBTqQXNtfzzlaI/GXq8DTwbvQVdeSBlfX2OPECp2V+ry69blEz/g9B5z+oTey25u8hARIJHzkH7QogNYc7CbP+Fu6/QJqOsDe794LdSmg2xcIBWGy/Wxx6SbVhMRhEwZi2keM4OV4gJGU47BECA6CeKhmi8i5PskvqZFk1UI5d9RlEcv9IkMKJwr8J8TMht7cqqUcP5WWWUIcMDII9OXLN0jwWZI+jVxjxeCAbMS35A/zv1NstuH8mg/07n7QCcdjOUpQjg5sgx/t2hhBlLJkXD6reaZSdeYwZzpXfPj0EAERDGD3tpIcHUL/fY2BQAA1toWNvo+p5dm9vnphj4fbys6usirr0C+MMFPFMBxOh2CCXUg9jTWJCDzCzkp4j38ZMBwvalBFwDW6oT9FZW2jRbOkyZyjsrNH648AOcueJMOQjeeVTtlV6/K2Qylx1scbTHXjBhfyG9MWYsPqYGWdb1QGVI4V5QLZC9ezcAQ== X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SN6PR01MB4445.prod.exchangelabs.com;PTR:;CAT:NONE;SFS:(13230022)(136003)(376002)(396003)(346002)(39830400003)(366004)(451199015)(5660300002)(8936002)(2906002)(36756003)(4326008)(66476007)(66556008)(66946007)(316002)(52116002)(478600001)(41300700001)(6506007)(6486002)(6666004)(107886003)(26005)(38100700002)(86362001)(2616005)(186003)(8676002)(83380400001)(6512007)(38350700002);DIR:OUT;SFP:1101; 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Larger buffers are unnecessary and add significant memory overhead. Signed-off-by: Tom Talpey --- fs/ksmbd/transport_rdma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c index 494b8e5af4b3..0315bca3d53b 100644 --- a/fs/ksmbd/transport_rdma.c +++ b/fs/ksmbd/transport_rdma.c @@ -62,13 +62,13 @@ static int smb_direct_receive_credit_max = 255; static int smb_direct_send_credit_target = 255; /* The maximum single message size can be sent to remote peer */ -static int smb_direct_max_send_size = 8192; +static int smb_direct_max_send_size = 1364; /* The maximum fragmented upper-layer payload receive size supported */ static int smb_direct_max_fragmented_recv_size = 1024 * 1024; /* The maximum single-message size which can be received */ -static int smb_direct_max_receive_size = 8192; +static int smb_direct_max_receive_size = 1364; static int smb_direct_max_read_write_size = SMBD_DEFAULT_IOSIZE;