/* -*- 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 CONFIG_SYSCTL && !CFS_SYSFS_MODULE_PARM static char ipif_basename_space[32]; static ctl_table kiblnd_ctl_table[] = { {1, "service", &service, sizeof(int), 0444, NULL, &proc_dointvec}, {2, "cksum", &cksum, sizeof(int), 0644, NULL, &proc_dointvec}, {3, "timeout", &timeout, sizeof(int), 0644, NULL, &proc_dointvec}, {4, "ntx", &ntx, sizeof(int), 0444, NULL, &proc_dointvec}, {5, "credits", &credits, sizeof(int), 0444, NULL, &proc_dointvec}, {6, "peer_credits", &peer_credits, sizeof(int), 0444, NULL, &proc_dointvec}, {7, "ipif_name", ipif_basename_space, sizeof(ipif_basename_space), 0444, NULL, &proc_dostring}, {8, "retry_count", &retry_count, sizeof(int), 0644, NULL, &proc_dointvec}, {9, "rnr_retry_count", &rnr_retry_count, sizeof(int), 0644, NULL, &proc_dointvec}, {10, "keepalive", &keepalive, sizeof(int), 0644, NULL, &proc_dointvec}, {11, "concurrent_sends", &concurrent_sends, sizeof(int), 0644, NULL, &proc_dointvec}, {12, "ib_mtu", &ib_mtu, sizeof(int), 0444, NULL, &proc_dointvec}, #if IBLND_MAP_ON_DEMAND {12, "fmr_pool_size", &fmr_pool_size, sizeof(int), 0444, NULL, &proc_dointvec}, {13, "fmr_flush_trigger", &fmr_flush_trigger, sizeof(int), 0444, NULL, &proc_dointvec}, {14, "fmr_cache", &fmr_cache, sizeof(int), 0444, NULL, &proc_dointvec}, #endif {0} }; static ctl_table kiblnd_top_ctl_table[] = { {203, "o2iblnd", NULL, 0, 0555, 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(); }