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/*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
*/
/*
* This file contains code imported from the OFED rds source file ib_sysctl.c
* Oracle elects to have and use the contents of ib_sysctl.c under and governed
* by the OpenIB.org BSD license (see below for full license text). However,
* the following notice accompanied the original version of this file:
*/
/*
* 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 <sys/ib/clients/rdsv3/ib.h>
#include <sys/ib/clients/rdsv3/rdsv3_debug.h>
unsigned long rdsv3_ib_sysctl_max_send_wr = RDSV3_IB_DEFAULT_SEND_WR;
unsigned long rdsv3_ib_sysctl_max_recv_wr = RDSV3_IB_DEFAULT_RECV_WR;
unsigned long rdsv3_ib_sysctl_max_recv_allocation = RDSV3_IB_MAX_RECV_ALLOC;
/* hardware will fail CQ creation long before this */
unsigned long rdsv3_ib_sysctl_max_unsig_wrs = 16;
unsigned long rdsv3_ib_sysctl_max_unsig_bytes = (16 << 20);
unsigned long rdsv3_max_bcopy_size;
/*
* 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.
*/
unsigned int rdsv3_ib_sysctl_flow_control = 0;
void
rdsv3_ib_sysctl_exit(void)
{
}
int
rdsv3_ib_sysctl_init(void)
{
RDSV3_DPRINTF2("rdsv3_ib_sysctl_init",
"rdsv3_ib_sysctl_max_send_wr = 0x%lx "
"rdsv3_ib_sysctl_max_recv_wr = 0x%lx "
"rdsv3_ib_sysctl_max_recv_allocation = 0x%lx "
"rdsv3_ib_sysctl_max_unsig_wrs = 0x%lx "
"rdsv3_ib_sysctl_max_unsig_bytes = 0x%lx "
"rdsv3_ib_sysctl_flow_control = 0x%x",
rdsv3_ib_sysctl_max_send_wr,
rdsv3_ib_sysctl_max_recv_wr,
rdsv3_ib_sysctl_max_recv_allocation,
rdsv3_ib_sysctl_max_unsig_wrs,
rdsv3_ib_sysctl_max_unsig_bytes,
rdsv3_ib_sysctl_flow_control);
rdsv3_max_bcopy_size = rdsv3_ib_sysctl_max_send_wr * RDSV3_FRAG_SIZE;
return (0);
}
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