16e76cdd6e3cfaac7d91c3b0644ee1bc6cf52347agiri * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
16e76cdd6e3cfaac7d91c3b0644ee1bc6cf52347agiri * This file contains code imported from the OFED rds source file ib_sysctl.c
16e76cdd6e3cfaac7d91c3b0644ee1bc6cf52347agiri * Oracle elects to have and use the contents of ib_sysctl.c under and governed
16e76cdd6e3cfaac7d91c3b0644ee1bc6cf52347agiri * by the OpenIB.org BSD license (see below for full license text). However,
16e76cdd6e3cfaac7d91c3b0644ee1bc6cf52347agiri * the following notice accompanied the original version of this file:
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * Copyright (c) 2006 Oracle. All rights reserved.
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * This software is available to you under a choice of one of two
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * licenses. You may choose to be licensed under the terms of the GNU
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * General Public License (GPL) Version 2, available from the file
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * COPYING in the main directory of this source tree, or the
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * OpenIB.org BSD license below:
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * Redistribution and use in source and binary forms, with or
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * without modification, are permitted provided that the following
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * conditions are met:
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * - Redistributions of source code must retain the above
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * copyright notice, this list of conditions and the following
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * disclaimer.
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * - Redistributions in binary form must reproduce the above
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * copyright notice, this list of conditions and the following
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * disclaimer in the documentation and/or other materials
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * provided with the distribution.
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * SOFTWARE.
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Otaunsigned long rdsv3_ib_sysctl_max_send_wr = RDSV3_IB_DEFAULT_SEND_WR;
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Otaunsigned long rdsv3_ib_sysctl_max_recv_wr = RDSV3_IB_DEFAULT_RECV_WR;
5e12ddada2833f3aa285210603ce9aaeb8be35ccEiji Otaunsigned long rdsv3_ib_sysctl_max_recv_allocation = RDSV3_IB_MAX_RECV_ALLOC;
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota/* hardware will fail CQ creation long before this */
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Otaunsigned long rdsv3_ib_sysctl_max_unsig_bytes = (16 << 20);
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * This sysctl does nothing.
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * Backwards compatibility with RDS 3.0 wire protocol
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * disables initial FC credit exchange.
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * If it's ever possible to drop 3.0 support,
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * setting this to 1 and moving init/refill of send/recv
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * rings from ib_cm_connect_complete() back into ib_setup_qp()
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota * will cause credits to be added before protocol negotiation.
b27516f55237249607f754e6e42e865f12456675agiri "rdsv3_ib_sysctl_max_send_wr = 0x%lx "
b27516f55237249607f754e6e42e865f12456675agiri "rdsv3_ib_sysctl_max_recv_wr = 0x%lx "
b27516f55237249607f754e6e42e865f12456675agiri "rdsv3_ib_sysctl_max_recv_allocation = 0x%lx "
b27516f55237249607f754e6e42e865f12456675agiri "rdsv3_ib_sysctl_max_unsig_wrs = 0x%lx "
b27516f55237249607f754e6e42e865f12456675agiri "rdsv3_ib_sysctl_max_unsig_bytes = 0x%lx "
b27516f55237249607f754e6e42e865f12456675agiri "rdsv3_ib_sysctl_flow_control = 0x%x",
3f756f37bfdcab561a4d84fb80f41f1e1a15c135agiri rdsv3_max_bcopy_size = rdsv3_ib_sysctl_max_send_wr * RDSV3_FRAG_SIZE;
c0dd49bdd68c0d758a67d56f07826f3b45cfc664Eiji Ota return (0);