/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * * Copyright (C) 2006 Cluster File Systems, Inc. * Author: Eric Barton * * This file is part of Lustre, http://www.lustre.org. * * Lustre is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. * * Lustre is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Lustre; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include "o2iblnd.h" static int service = 987; CFS_MODULE_PARM(service, "i", int, 0444, "service number (within RDMA_PS_TCP)"); static int cksum = 0; CFS_MODULE_PARM(cksum, "i", int, 0644, "set non-zero to enable message (not RDMA) checksums"); static int timeout = 50; CFS_MODULE_PARM(timeout, "i", int, 0644, "timeout (seconds)"); static int ntx = 256; CFS_MODULE_PARM(ntx, "i", int, 0444, "# of message descriptors"); static int credits = 64; CFS_MODULE_PARM(credits, "i", int, 0444, "# concurrent sends"); static int peer_credits = 8; CFS_MODULE_PARM(peer_credits, "i", int, 0444, "# concurrent sends to 1 peer"); static char *ipif_name = "ib0"; CFS_MODULE_PARM(ipif_name, "s", charp, 0444, "IPoIB interface name"); static int retry_count = 5; CFS_MODULE_PARM(retry_count, "i", int, 0644, "Retransmissions when no ACK received"); static int rnr_retry_count = 6; CFS_MODULE_PARM(rnr_retry_count, "i", int, 0644, "RNR retransmissions"); static int keepalive = 100; CFS_MODULE_PARM(keepalive, "i", int, 0644, "Idle time in seconds before sending a keepalive"); static int ib_mtu = 0; CFS_MODULE_PARM(ib_mtu, "i", int, 0444, "IB MTU 256/512/1024/2048/4096"); #if IBLND_MAP_ON_DEMAND static int concurrent_sends = IBLND_RX_MSGS; #else static int concurrent_sends = IBLND_MSG_QUEUE_SIZE; #endif CFS_MODULE_PARM(concurrent_sends, "i", int, 0444, "send work-queue sizing"); #if IBLND_MAP_ON_DEMAND static int fmr_pool_size = 512; CFS_MODULE_PARM(fmr_pool_size, "i", int, 0444, "size of the fmr pool (>= ntx)"); static int fmr_flush_trigger = 384; CFS_MODULE_PARM(fmr_flush_trigger, "i", int, 0444, "# dirty FMRs that triggers pool flush"); static int fmr_cache = 1; CFS_MODULE_PARM(fmr_cache, "i", int, 0444, "non-zero to enable FMR caching"); #endif kib_tunables_t kiblnd_tunables = { .kib_service = &service, .kib_cksum = &cksum, .kib_timeout = &timeout, .kib_keepalive = &keepalive, .kib_ntx = &ntx, .kib_credits = &credits, .kib_peercredits = &peer_credits, .kib_default_ipif = &ipif_name, .kib_retry_count = &retry_count, .kib_rnr_retry_count = &rnr_retry_count, .kib_concurrent_sends = &concurrent_sends, .kib_ib_mtu = &ib_mtu, #if IBLND_MAP_ON_DEMAND .kib_fmr_pool_size = &fmr_pool_size, .kib_fmr_flush_trigger = &fmr_flush_trigger, .kib_fmr_cache = &fmr_cache, #endif }; #if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM static char ipif_basename_space[32]; static cfs_sysctl_table_t kiblnd_ctl_table[] = { { .ctl_name = 1, .procname = "service", .data = &service, .maxlen = sizeof(int), .mode = 0444, .proc_handler = &proc_dointvec }, { .ctl_name = 2, .procname = "cksum", .data = &cksum, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec }, { .ctl_name = 3, .procname = "timeout", .data = &timeout, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec }, { .ctl_name = 4, .procname = "ntx", .data = &ntx, .maxlen = sizeof(int), .mode = 0444, .proc_handler = &proc_dointvec }, { .ctl_name = 5, .procname = "credits", .data = &credits, .maxlen = sizeof(int), .mode = 0444, .proc_handler = &proc_dointvec }, { .ctl_name = 6, .procname = "peer_credits", .data = &peer_credits, .maxlen = sizeof(int), .mode = 0444, .proc_handler = &proc_dointvec }, { .ctl_name = 7, .procname = "ipif_name", .data = ipif_basename_space, .maxlen = sizeof(ipif_basename_space), .mode = 0444, .proc_handler = &proc_dostring }, { .ctl_name = 8, .procname = "retry_count", .data = &retry_count, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec }, { .ctl_name = 9, .procname = "rnr_retry_count", .data = &rnr_retry_count, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec }, { .ctl_name = 10, .procname = "keepalive", .data = &keepalive, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec }, { .ctl_name = 11, .procname = "concurrent_sends", .data = &concurrent_sends, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec }, { .ctl_name = 12, .procname = "ib_mtu", .data = &ib_mtu, .maxlen = sizeof(int), .mode = 0444, .proc_handler = &proc_dointvec }, #if IBLND_MAP_ON_DEMAND { .ctl_name = 13, .procname = "fmr_pool_size", .data = &fmr_pool_size, .maxlen = sizeof(int), .mode = 0444, .proc_handler = &proc_dointvec }, { .ctl_name = 14, .procname = "fmr_flush_trigger", .data = &fmr_flush_trigger, .maxlen = sizeof(int), .mode = 0444, .proc_handler = &proc_dointvec }, { .ctl_name = 15, .procname = "fmr_cache", .data = &fmr_cache, .maxlen = sizeof(int), .mode = 0444, .proc_handler = &proc_dointvec }, #endif {0} }; static cfs_sysctl_table_t kiblnd_top_ctl_table[] = { { .ctl_name = 203, .procname = "o2iblnd", .data = NULL, .maxlen = 0, .mode = 0555, .child = kiblnd_ctl_table }, {0} }; void kiblnd_initstrtunable(char *space, char *str, int size) { strncpy(space, str, size); space[size-1] = 0; } void kiblnd_sysctl_init (void) { kiblnd_initstrtunable(ipif_basename_space, ipif_name, sizeof(ipif_basename_space)); kiblnd_tunables.kib_sysctl = cfs_register_sysctl_table(kiblnd_top_ctl_table, 0); if (kiblnd_tunables.kib_sysctl == NULL) CWARN("Can't setup /proc tunables\n"); } void kiblnd_sysctl_fini (void) { if (kiblnd_tunables.kib_sysctl != NULL) cfs_unregister_sysctl_table(kiblnd_tunables.kib_sysctl); } #else void kiblnd_sysctl_init (void) { } void kiblnd_sysctl_fini (void) { } #endif int kiblnd_tunables_init (void) { kiblnd_sysctl_init(); if (*kiblnd_tunables.kib_concurrent_sends > IBLND_RX_MSGS) *kiblnd_tunables.kib_concurrent_sends = IBLND_RX_MSGS; if (*kiblnd_tunables.kib_concurrent_sends < IBLND_MSG_QUEUE_SIZE) *kiblnd_tunables.kib_concurrent_sends = IBLND_MSG_QUEUE_SIZE; return 0; } void kiblnd_tunables_fini (void) { kiblnd_sysctl_fini(); }