d706306d49
supported in years. A number of changes have been made to the driver that likely wouldn't work on those older versions that aren't properly ifdef'd and it's project policy to GC such code once it is stale.
285 lines
6.7 KiB
C
285 lines
6.7 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (C) 2012-2013 Intel Corporation
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/bio.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/kthread.h>
|
|
#include <sys/module.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/syscallsubr.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/sysproto.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/unistd.h>
|
|
|
|
#include <geom/geom.h>
|
|
|
|
#include "nvme_private.h"
|
|
|
|
struct nvme_io_test_thread {
|
|
|
|
uint32_t idx;
|
|
struct nvme_namespace *ns;
|
|
enum nvme_nvm_opcode opc;
|
|
struct timeval start;
|
|
void *buf;
|
|
uint32_t size;
|
|
uint32_t time;
|
|
uint64_t io_completed;
|
|
};
|
|
|
|
struct nvme_io_test_internal {
|
|
|
|
struct nvme_namespace *ns;
|
|
enum nvme_nvm_opcode opc;
|
|
struct timeval start;
|
|
uint32_t time;
|
|
uint32_t size;
|
|
uint32_t td_active;
|
|
uint32_t td_idx;
|
|
uint32_t flags;
|
|
uint64_t io_completed[NVME_TEST_MAX_THREADS];
|
|
};
|
|
|
|
static void
|
|
nvme_ns_bio_test_cb(struct bio *bio)
|
|
{
|
|
struct mtx *mtx;
|
|
|
|
mtx = mtx_pool_find(mtxpool_sleep, bio);
|
|
mtx_lock(mtx);
|
|
wakeup(bio);
|
|
mtx_unlock(mtx);
|
|
}
|
|
|
|
static void
|
|
nvme_ns_bio_test(void *arg)
|
|
{
|
|
struct nvme_io_test_internal *io_test = arg;
|
|
struct cdevsw *csw;
|
|
struct mtx *mtx;
|
|
struct bio *bio;
|
|
struct cdev *dev;
|
|
void *buf;
|
|
struct timeval t;
|
|
uint64_t io_completed = 0, offset;
|
|
uint32_t idx;
|
|
int ref;
|
|
|
|
buf = malloc(io_test->size, M_NVME, M_WAITOK);
|
|
idx = atomic_fetchadd_int(&io_test->td_idx, 1);
|
|
dev = io_test->ns->cdev;
|
|
|
|
offset = idx * 2048 * nvme_ns_get_sector_size(io_test->ns);
|
|
|
|
while (1) {
|
|
|
|
bio = g_alloc_bio();
|
|
|
|
memset(bio, 0, sizeof(*bio));
|
|
bio->bio_cmd = (io_test->opc == NVME_OPC_READ) ?
|
|
BIO_READ : BIO_WRITE;
|
|
bio->bio_done = nvme_ns_bio_test_cb;
|
|
bio->bio_dev = dev;
|
|
bio->bio_offset = offset;
|
|
bio->bio_data = buf;
|
|
bio->bio_bcount = io_test->size;
|
|
|
|
if (io_test->flags & NVME_TEST_FLAG_REFTHREAD) {
|
|
csw = dev_refthread(dev, &ref);
|
|
} else
|
|
csw = dev->si_devsw;
|
|
|
|
mtx = mtx_pool_find(mtxpool_sleep, bio);
|
|
mtx_lock(mtx);
|
|
(*csw->d_strategy)(bio);
|
|
msleep(bio, mtx, PRIBIO, "biotestwait", 0);
|
|
mtx_unlock(mtx);
|
|
|
|
if (io_test->flags & NVME_TEST_FLAG_REFTHREAD) {
|
|
dev_relthread(dev, ref);
|
|
}
|
|
|
|
if ((bio->bio_flags & BIO_ERROR) || (bio->bio_resid > 0))
|
|
break;
|
|
|
|
g_destroy_bio(bio);
|
|
|
|
io_completed++;
|
|
|
|
getmicrouptime(&t);
|
|
timevalsub(&t, &io_test->start);
|
|
|
|
if (t.tv_sec >= io_test->time)
|
|
break;
|
|
|
|
offset += io_test->size;
|
|
if ((offset + io_test->size) > nvme_ns_get_size(io_test->ns))
|
|
offset = 0;
|
|
}
|
|
|
|
io_test->io_completed[idx] = io_completed;
|
|
wakeup_one(io_test);
|
|
|
|
free(buf, M_NVME);
|
|
|
|
atomic_subtract_int(&io_test->td_active, 1);
|
|
mb();
|
|
|
|
kthread_exit();
|
|
}
|
|
|
|
static void
|
|
nvme_ns_io_test_cb(void *arg, const struct nvme_completion *cpl)
|
|
{
|
|
struct nvme_io_test_thread *tth = arg;
|
|
struct timeval t;
|
|
|
|
tth->io_completed++;
|
|
|
|
if (nvme_completion_is_error(cpl)) {
|
|
printf("%s: error occurred\n", __func__);
|
|
wakeup_one(tth);
|
|
return;
|
|
}
|
|
|
|
getmicrouptime(&t);
|
|
timevalsub(&t, &tth->start);
|
|
|
|
if (t.tv_sec >= tth->time) {
|
|
wakeup_one(tth);
|
|
return;
|
|
}
|
|
|
|
switch (tth->opc) {
|
|
case NVME_OPC_WRITE:
|
|
nvme_ns_cmd_write(tth->ns, tth->buf, tth->idx * 2048,
|
|
tth->size/nvme_ns_get_sector_size(tth->ns),
|
|
nvme_ns_io_test_cb, tth);
|
|
break;
|
|
case NVME_OPC_READ:
|
|
nvme_ns_cmd_read(tth->ns, tth->buf, tth->idx * 2048,
|
|
tth->size/nvme_ns_get_sector_size(tth->ns),
|
|
nvme_ns_io_test_cb, tth);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
nvme_ns_io_test(void *arg)
|
|
{
|
|
struct nvme_io_test_internal *io_test = arg;
|
|
struct nvme_io_test_thread *tth;
|
|
struct nvme_completion cpl;
|
|
int error;
|
|
|
|
tth = malloc(sizeof(*tth), M_NVME, M_WAITOK | M_ZERO);
|
|
tth->ns = io_test->ns;
|
|
tth->opc = io_test->opc;
|
|
memcpy(&tth->start, &io_test->start, sizeof(tth->start));
|
|
tth->buf = malloc(io_test->size, M_NVME, M_WAITOK);
|
|
tth->size = io_test->size;
|
|
tth->time = io_test->time;
|
|
tth->idx = atomic_fetchadd_int(&io_test->td_idx, 1);
|
|
|
|
memset(&cpl, 0, sizeof(cpl));
|
|
|
|
nvme_ns_io_test_cb(tth, &cpl);
|
|
|
|
error = tsleep(tth, 0, "test_wait", tth->time*hz*2);
|
|
|
|
if (error)
|
|
printf("%s: error = %d\n", __func__, error);
|
|
|
|
io_test->io_completed[tth->idx] = tth->io_completed;
|
|
wakeup_one(io_test);
|
|
|
|
free(tth->buf, M_NVME);
|
|
free(tth, M_NVME);
|
|
|
|
atomic_subtract_int(&io_test->td_active, 1);
|
|
mb();
|
|
|
|
kthread_exit();
|
|
}
|
|
|
|
void
|
|
nvme_ns_test(struct nvme_namespace *ns, u_long cmd, caddr_t arg)
|
|
{
|
|
struct nvme_io_test *io_test;
|
|
struct nvme_io_test_internal *io_test_internal;
|
|
void (*fn)(void *);
|
|
int i;
|
|
|
|
io_test = (struct nvme_io_test *)arg;
|
|
|
|
if ((io_test->opc != NVME_OPC_READ) &&
|
|
(io_test->opc != NVME_OPC_WRITE))
|
|
return;
|
|
|
|
if (io_test->size % nvme_ns_get_sector_size(ns))
|
|
return;
|
|
|
|
io_test_internal = malloc(sizeof(*io_test_internal), M_NVME,
|
|
M_WAITOK | M_ZERO);
|
|
io_test_internal->opc = io_test->opc;
|
|
io_test_internal->ns = ns;
|
|
io_test_internal->td_active = io_test->num_threads;
|
|
io_test_internal->time = io_test->time;
|
|
io_test_internal->size = io_test->size;
|
|
io_test_internal->flags = io_test->flags;
|
|
|
|
if (cmd == NVME_IO_TEST)
|
|
fn = nvme_ns_io_test;
|
|
else
|
|
fn = nvme_ns_bio_test;
|
|
|
|
getmicrouptime(&io_test_internal->start);
|
|
|
|
for (i = 0; i < io_test->num_threads; i++)
|
|
kthread_add(fn, io_test_internal,
|
|
NULL, NULL, 0, 0, "nvme_io_test[%d]", i);
|
|
|
|
tsleep(io_test_internal, 0, "nvme_test", io_test->time * 2 * hz);
|
|
|
|
while (io_test_internal->td_active > 0)
|
|
DELAY(10);
|
|
|
|
memcpy(io_test->io_completed, io_test_internal->io_completed,
|
|
sizeof(io_test->io_completed));
|
|
|
|
free(io_test_internal, M_NVME);
|
|
}
|