/* * Copyright (c) 2006 Oracle. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. *
*/ #include <linux/kernel.h> #include <linux/sysctl.h> #include <linux/proc_fs.h>
#include"ib.h"
staticstruct ctl_table_header *rds_ib_sysctl_hdr;
unsignedlong rds_ib_sysctl_max_send_wr = RDS_IB_DEFAULT_SEND_WR; unsignedlong rds_ib_sysctl_max_recv_wr = RDS_IB_DEFAULT_RECV_WR; unsignedlong rds_ib_sysctl_max_recv_allocation = (128 * 1024 * 1024) / RDS_FRAG_SIZE; staticunsignedlong rds_ib_sysctl_max_wr_min = 1; /* hardware will fail CQ creation long before this */ staticunsignedlong rds_ib_sysctl_max_wr_max = (u32)~0;
/* * This sysctl does nothing. * * Backwards compatibility with RDS 3.0 wire protocol * disables initial FC credit exchange. * If it's ever possible to drop 3.0 support, * setting this to 1 and moving init/refill of send/recv * rings from ib_cm_connect_complete() back into ib_setup_qp() * will cause credits to be added before protocol negotiation.
*/ unsignedint rds_ib_sysctl_flow_control = 0;
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