^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2015-2018 Oracle. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2005-2006 Network Appliance, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * This software is available to you under a choice of one of two
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * licenses. You may choose to be licensed under the terms of the GNU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * General Public License (GPL) Version 2, available from the file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * COPYING in the main directory of this source tree, or the BSD-type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * license below:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Redistribution and use in source and binary forms, with or without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * modification, are permitted provided that the following conditions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * are met:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * Redistributions of source code must retain the above copyright
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * notice, this list of conditions and the following disclaimer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * Redistributions in binary form must reproduce the above
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * copyright notice, this list of conditions and the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * disclaimer in the documentation and/or other materials provided
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * with the distribution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * Neither the name of the Network Appliance, Inc. nor the names of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * its contributors may be used to endorse or promote products
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * derived from this software without specific prior written
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * permission.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * Author: Tom Tucker <tom@opengridcomputing.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #include <linux/sysctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #include <linux/sunrpc/clnt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #include <linux/sunrpc/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #include <linux/sunrpc/svc_rdma.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define RPCDBG_FACILITY RPCDBG_SVCXPRT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) /* RPC/RDMA parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) unsigned int svcrdma_ord = 16; /* historical default */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static unsigned int min_ord = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static unsigned int max_ord = 255;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) unsigned int svcrdma_max_requests = RPCRDMA_MAX_REQUESTS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) unsigned int svcrdma_max_bc_requests = RPCRDMA_MAX_BC_REQUESTS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static unsigned int min_max_requests = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) static unsigned int max_max_requests = 16384;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) unsigned int svcrdma_max_req_size = RPCRDMA_DEF_INLINE_THRESH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static unsigned int min_max_inline = RPCRDMA_DEF_INLINE_THRESH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static unsigned int max_max_inline = RPCRDMA_MAX_INLINE_THRESH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) atomic_t rdma_stat_recv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) atomic_t rdma_stat_read;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) atomic_t rdma_stat_write;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) atomic_t rdma_stat_sq_starve;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) atomic_t rdma_stat_rq_starve;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) atomic_t rdma_stat_rq_poll;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) atomic_t rdma_stat_rq_prod;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) atomic_t rdma_stat_sq_poll;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) atomic_t rdma_stat_sq_prod;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * This function implements reading and resetting an atomic_t stat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * variable through read/write to a proc file. Any write to the file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * resets the associated statistic to zero. Any read returns it's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * current value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static int read_reset_stat(struct ctl_table *table, int write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) void *buffer, size_t *lenp, loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) atomic_t *stat = (atomic_t *)table->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) if (!stat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) if (write)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) atomic_set(stat, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) char str_buf[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) int len = snprintf(str_buf, 32, "%d\n", atomic_read(stat));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if (len >= 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) len = strlen(str_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (*ppos > len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) *lenp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) len -= *ppos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (len > *lenp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) len = *lenp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) if (len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) memcpy(buffer, str_buf, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) *lenp = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) *ppos += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static struct ctl_table_header *svcrdma_table_header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) static struct ctl_table svcrdma_parm_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) .procname = "max_requests",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .data = &svcrdma_max_requests,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .maxlen = sizeof(unsigned int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .extra1 = &min_max_requests,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .extra2 = &max_max_requests
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .procname = "max_req_size",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) .data = &svcrdma_max_req_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .maxlen = sizeof(unsigned int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) .extra1 = &min_max_inline,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .extra2 = &max_max_inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .procname = "max_outbound_read_requests",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .data = &svcrdma_ord,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) .maxlen = sizeof(unsigned int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) .extra1 = &min_ord,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .extra2 = &max_ord,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) .procname = "rdma_stat_read",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) .data = &rdma_stat_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) .maxlen = sizeof(atomic_t),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) .proc_handler = read_reset_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .procname = "rdma_stat_recv",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) .data = &rdma_stat_recv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) .maxlen = sizeof(atomic_t),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .proc_handler = read_reset_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .procname = "rdma_stat_write",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .data = &rdma_stat_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .maxlen = sizeof(atomic_t),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) .proc_handler = read_reset_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) .procname = "rdma_stat_sq_starve",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) .data = &rdma_stat_sq_starve,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) .maxlen = sizeof(atomic_t),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) .proc_handler = read_reset_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) .procname = "rdma_stat_rq_starve",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) .data = &rdma_stat_rq_starve,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) .maxlen = sizeof(atomic_t),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) .proc_handler = read_reset_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) .procname = "rdma_stat_rq_poll",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) .data = &rdma_stat_rq_poll,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) .maxlen = sizeof(atomic_t),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) .proc_handler = read_reset_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .procname = "rdma_stat_rq_prod",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) .data = &rdma_stat_rq_prod,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) .maxlen = sizeof(atomic_t),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) .proc_handler = read_reset_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) .procname = "rdma_stat_sq_poll",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) .data = &rdma_stat_sq_poll,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) .maxlen = sizeof(atomic_t),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) .proc_handler = read_reset_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) .procname = "rdma_stat_sq_prod",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) .data = &rdma_stat_sq_prod,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) .maxlen = sizeof(atomic_t),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) .proc_handler = read_reset_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) static struct ctl_table svcrdma_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) .procname = "svc_rdma",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) .mode = 0555,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) .child = svcrdma_parm_table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) static struct ctl_table svcrdma_root_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) .procname = "sunrpc",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) .mode = 0555,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) .child = svcrdma_table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) void svc_rdma_cleanup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) dprintk("SVCRDMA Module Removed, deregister RPC RDMA transport\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (svcrdma_table_header) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) unregister_sysctl_table(svcrdma_table_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) svcrdma_table_header = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) svc_unreg_xprt_class(&svc_rdma_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) int svc_rdma_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) dprintk("SVCRDMA Module Init, register RPC RDMA transport\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) dprintk("\tsvcrdma_ord : %d\n", svcrdma_ord);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) dprintk("\tmax_requests : %u\n", svcrdma_max_requests);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) dprintk("\tmax_bc_requests : %u\n", svcrdma_max_bc_requests);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) dprintk("\tmax_inline : %d\n", svcrdma_max_req_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) if (!svcrdma_table_header)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) svcrdma_table_header =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) register_sysctl_table(svcrdma_root_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) /* Register RDMA with the SVC transport switch */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) svc_reg_xprt_class(&svc_rdma_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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