// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* * Copyright (c) 2015-2018 Oracle. All rights reserved. * Copyright (c) 2005-2006 Network Appliance, Inc. 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 BSD-type * 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. * * Neither the name of the Network Appliance, Inc. nor the names of * its contributors may be used to endorse or promote products * derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Author: Tom Tucker <[email protected]> */ #include <linux/slab.h> #include <linux/fs.h> #include <linux/sysctl.h> #include <linux/workqueue.h> #include <linux/sunrpc/clnt.h> #include <linux/sunrpc/sched.h> #include <linux/sunrpc/svc_rdma.h> #define RPCDBG_FACILITY … /* RPC/RDMA parameters */ unsigned int svcrdma_ord = …; /* historical default */ static unsigned int min_ord = …; static unsigned int max_ord = …; unsigned int svcrdma_max_requests = …; unsigned int svcrdma_max_bc_requests = …; static unsigned int min_max_requests = …; static unsigned int max_max_requests = …; unsigned int svcrdma_max_req_size = …; static unsigned int min_max_inline = …; static unsigned int max_max_inline = …; static unsigned int svcrdma_stat_unused; static unsigned int zero; struct percpu_counter svcrdma_stat_read; struct percpu_counter svcrdma_stat_recv; struct percpu_counter svcrdma_stat_sq_starve; struct percpu_counter svcrdma_stat_write; enum { … }; static int svcrdma_counter_handler(const struct ctl_table *table, int write, void *buffer, size_t *lenp, loff_t *ppos) { … } static struct ctl_table_header *svcrdma_table_header; static struct ctl_table svcrdma_parm_table[] = …; static void svc_rdma_proc_cleanup(void) { … } static int svc_rdma_proc_init(void) { … } struct workqueue_struct *svcrdma_wq; void svc_rdma_cleanup(void) { … } int svc_rdma_init(void) { … }
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