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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | /* sysctls for configuring RxRPC operating parameters * * Copyright (C) 2014 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public Licence * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. */ #include <linux/sysctl.h> #include <net/sock.h> #include <net/af_rxrpc.h> #include "ar-internal.h" static struct ctl_table_header *rxrpc_sysctl_reg_table; static const unsigned int zero = 0; static const unsigned int one = 1; static const unsigned int four = 4; static const unsigned int thirtytwo = 32; static const unsigned int n_65535 = 65535; static const unsigned int n_max_acks = RXRPC_RXTX_BUFF_SIZE - 1; /* * RxRPC operating parameters. * * See Documentation/networking/rxrpc.txt and the variable definitions for more * information on the individual parameters. */ static struct ctl_table rxrpc_sysctl_table[] = { /* Values measured in milliseconds */ { .procname = "req_ack_delay", .data = &rxrpc_requested_ack_delay, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, .extra1 = (void *)&zero, }, { .procname = "soft_ack_delay", .data = &rxrpc_soft_ack_delay, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, .extra1 = (void *)&one, }, { .procname = "idle_ack_delay", .data = &rxrpc_idle_ack_delay, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, .extra1 = (void *)&one, }, { .procname = "resend_timeout", .data = &rxrpc_resend_timeout, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, .extra1 = (void *)&one, }, { .procname = "idle_conn_expiry", .data = &rxrpc_conn_idle_client_expiry, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_ms_jiffies, .extra1 = (void *)&one, }, { .procname = "idle_conn_fast_expiry", .data = &rxrpc_conn_idle_client_fast_expiry, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_ms_jiffies, .extra1 = (void *)&one, }, /* Values measured in seconds but used in jiffies */ { .procname = "max_call_lifetime", .data = &rxrpc_max_call_lifetime, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, .extra1 = (void *)&one, }, /* Non-time values */ { .procname = "max_client_conns", .data = &rxrpc_max_client_connections, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *)&rxrpc_reap_client_connections, }, { .procname = "reap_client_conns", .data = &rxrpc_reap_client_connections, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *)&one, .extra2 = (void *)&rxrpc_max_client_connections, }, { .procname = "max_backlog", .data = &rxrpc_max_backlog, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *)&four, .extra2 = (void *)&thirtytwo, }, { .procname = "rx_window_size", .data = &rxrpc_rx_window_size, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *)&one, .extra2 = (void *)&n_max_acks, }, { .procname = "rx_mtu", .data = &rxrpc_rx_mtu, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *)&one, .extra2 = (void *)&n_65535, }, { .procname = "rx_jumbo_max", .data = &rxrpc_rx_jumbo_max, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *)&one, .extra2 = (void *)&four, }, { } }; int __init rxrpc_sysctl_init(void) { rxrpc_sysctl_reg_table = register_net_sysctl(&init_net, "net/rxrpc", rxrpc_sysctl_table); if (!rxrpc_sysctl_reg_table) return -ENOMEM; return 0; } void rxrpc_sysctl_exit(void) { if (rxrpc_sysctl_reg_table) unregister_net_sysctl_table(rxrpc_sysctl_reg_table); } |