From patchwork Tue Jan 27 02:17:45 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Grover X-Patchwork-Id: 20375 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by ozlabs.org (Postfix) with ESMTP id 9CB1FDE11C for ; Tue, 27 Jan 2009 13:18:41 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753805AbZA0CSa (ORCPT ); Mon, 26 Jan 2009 21:18:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753730AbZA0CSa (ORCPT ); Mon, 26 Jan 2009 21:18:30 -0500 Received: from rcsinet12.oracle.com ([148.87.113.124]:19587 "EHLO rgminet12.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753544AbZA0CS1 (ORCPT ); Mon, 26 Jan 2009 21:18:27 -0500 Received: from acsinet13.oracle.com (acsinet13.oracle.com [141.146.126.235]) by rgminet12.oracle.com (Switch-3.3.1/Switch-3.3.1) with ESMTP id n0R2Hx7I025598 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 27 Jan 2009 02:18:01 GMT Received: from acsmt703.oracle.com (acsmt703.oracle.com [141.146.40.81]) by acsinet13.oracle.com (Switch-3.3.1/Switch-3.3.1) with ESMTP id n0R2ILWA018550; Tue, 27 Jan 2009 02:18:22 GMT Received: from localhost.localdomain (/139.185.48.5) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 27 Jan 2009 02:18:19 +0000 From: Andy Grover To: rdreier@cisco.com Cc: rds-devel@oss.oracle.com, general@lists.openfabrics.org, netdev@vger.kernel.org Subject: [PATCH 08/21] RDS: sysctls Date: Mon, 26 Jan 2009 18:17:45 -0800 Message-Id: <1233022678-9259-9-git-send-email-andy.grover@oracle.com> X-Mailer: git-send-email 1.5.6.3 In-Reply-To: <1233022678-9259-1-git-send-email-andy.grover@oracle.com> References: <1233022678-9259-1-git-send-email-andy.grover@oracle.com> X-Source-IP: acsmt703.oracle.com [141.146.40.81] X-Auth-Type: Internal IP X-CT-RefId: str=0001.0A01020A.497E6EED.00C0:SCFSTAT928724,ss=1,fgs=0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org In addition to some tunable parameters, we also make protocol # available here, since until accepted in upstream we do not have a fixed number assigned. This can be removed once upstream. Signed-off-by: Andy Grover --- drivers/infiniband/ulp/rds/sysctl.c | 164 +++++++++++++++++++++++++++++++++++ 1 files changed, 164 insertions(+), 0 deletions(-) create mode 100644 drivers/infiniband/ulp/rds/sysctl.c diff --git a/drivers/infiniband/ulp/rds/sysctl.c b/drivers/infiniband/ulp/rds/sysctl.c new file mode 100644 index 0000000..3337a3e --- /dev/null +++ b/drivers/infiniband/ulp/rds/sysctl.c @@ -0,0 +1,164 @@ +/* + * 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 +#include +#include + +#include "rds.h" + +static struct ctl_table_header *rds_sysctl_reg_table; + +static unsigned long rds_sysctl_reconnect_min = 1; +static unsigned long rds_sysctl_reconnect_max = ~0UL; + +unsigned long rds_sysctl_reconnect_min_jiffies; +unsigned long rds_sysctl_reconnect_max_jiffies = HZ; + +unsigned int rds_sysctl_max_unacked_packets = 8; +unsigned int rds_sysctl_max_unacked_bytes = (16 << 20); + +unsigned int rds_sysctl_ping_enable = 1; + +unsigned long rds_sysctl_trace_flags = 0; +unsigned int rds_sysctl_trace_level = 0; + +/* + * These can change over time until they're official. Until that time we'll + * give apps a way to figure out what the values are in a given machine. + */ +static int rds_sysctl_pf_rds = PF_RDS; +static int rds_sysctl_sol_rds = SOL_RDS; + +static ctl_table rds_sysctl_rds_table[] = { + { + .ctl_name = CTL_UNNUMBERED, + .procname = "reconnect_min_delay_ms", + .data = &rds_sysctl_reconnect_min_jiffies, + .maxlen = sizeof(unsigned long), + .mode = 0644, + .proc_handler = &proc_doulongvec_ms_jiffies_minmax, + .extra1 = &rds_sysctl_reconnect_min, + .extra2 = &rds_sysctl_reconnect_max_jiffies, + }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "reconnect_max_delay_ms", + .data = &rds_sysctl_reconnect_max_jiffies, + .maxlen = sizeof(unsigned long), + .mode = 0644, + .proc_handler = &proc_doulongvec_ms_jiffies_minmax, + .extra1 = &rds_sysctl_reconnect_min_jiffies, + .extra2 = &rds_sysctl_reconnect_max, + }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "pf_rds", + .data = &rds_sysctl_pf_rds, + .maxlen = sizeof(int), + .mode = 0444, + .proc_handler = &proc_dointvec, + }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "sol_rds", + .data = &rds_sysctl_sol_rds, + .maxlen = sizeof(int), + .mode = 0444, + .proc_handler = &proc_dointvec, + }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "max_unacked_packets", + .data = &rds_sysctl_max_unacked_packets, + .maxlen = sizeof(unsigned long), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "max_unacked_bytes", + .data = &rds_sysctl_max_unacked_bytes, + .maxlen = sizeof(unsigned long), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "ping_enable", + .data = &rds_sysctl_ping_enable, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "trace_flags", + .data = &rds_sysctl_trace_flags, + .maxlen = sizeof(unsigned long), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "trace_level", + .data = &rds_sysctl_trace_level, + .maxlen = sizeof(unsigned int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { .ctl_name = 0} +}; + +static struct ctl_path rds_sysctl_path[] = { + { .procname = "net", .ctl_name = CTL_NET, }, + { .procname = "rds", .ctl_name = CTL_UNNUMBERED, }, + { } +}; + + +void rds_sysctl_exit(void) +{ + if (rds_sysctl_reg_table) + unregister_sysctl_table(rds_sysctl_reg_table); +} + +int __init rds_sysctl_init(void) +{ + rds_sysctl_reconnect_min = msecs_to_jiffies(1); + rds_sysctl_reconnect_min_jiffies = rds_sysctl_reconnect_min; + + rds_sysctl_reg_table = register_sysctl_paths(rds_sysctl_path, rds_sysctl_rds_table); + if (rds_sysctl_reg_table == NULL) + return -ENOMEM; + return 0; +}