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78 lines
2.5 KiB
C
78 lines
2.5 KiB
C
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/*
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* Copyright (C) 2017, Microsoft Corporation.
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*
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* Author(s): Long Li <longli@microsoft.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*/
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#include "smbdirect.h"
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/* SMBD version number */
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#define SMBD_V1 0x0100
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/* Port numbers for SMBD transport */
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#define SMB_PORT 445
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#define SMBD_PORT 5445
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/* Address lookup and resolve timeout in ms */
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#define RDMA_RESOLVE_TIMEOUT 5000
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/* SMBD negotiation timeout in seconds */
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#define SMBD_NEGOTIATE_TIMEOUT 120
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/* SMBD minimum receive size and fragmented sized defined in [MS-SMBD] */
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#define SMBD_MIN_RECEIVE_SIZE 128
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#define SMBD_MIN_FRAGMENTED_SIZE 131072
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/*
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* Default maximum number of RDMA read/write outstanding on this connection
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* This value is possibly decreased during QP creation on hardware limit
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*/
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#define SMBD_CM_RESPONDER_RESOURCES 32
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/* Maximum number of retries on data transfer operations */
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#define SMBD_CM_RETRY 6
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/* No need to retry on Receiver Not Ready since SMBD manages credits */
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#define SMBD_CM_RNR_RETRY 0
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/*
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* User configurable initial values per SMBD transport connection
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* as defined in [MS-SMBD] 3.1.1.1
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* Those may change after a SMBD negotiation
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*/
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/* The local peer's maximum number of credits to grant to the peer */
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int smbd_receive_credit_max = 255;
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/* The remote peer's credit request of local peer */
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int smbd_send_credit_target = 255;
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/* The maximum single message size can be sent to remote peer */
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int smbd_max_send_size = 1364;
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/* The maximum fragmented upper-layer payload receive size supported */
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int smbd_max_fragmented_recv_size = 1024 * 1024;
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/* The maximum single-message size which can be received */
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int smbd_max_receive_size = 8192;
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/* The timeout to initiate send of a keepalive message on idle */
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int smbd_keep_alive_interval = 120;
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/*
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* User configurable initial values for RDMA transport
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* The actual values used may be lower and are limited to hardware capabilities
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*/
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/* Default maximum number of SGEs in a RDMA write/read */
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int smbd_max_frmr_depth = 2048;
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/* If payload is less than this byte, use RDMA send/recv not read/write */
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int rdma_readwrite_threshold = 4096;
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