mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
mtd: mtd_speedtest: use mtd_test helpers
Use mtdtest_write(), mtdtest_read(), mtdtest_scan_for_bad_eraseblocks(), mtdtest_erase_good_eraseblocks() in mtd_test helpers. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Vikram Narayanan <vikram186@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
parent
bf9c223664
commit
59b0816d7c
1 changed files with 36 additions and 144 deletions
|
@ -30,6 +30,8 @@
|
|||
#include <linux/sched.h>
|
||||
#include <linux/random.h>
|
||||
|
||||
#include "mtd_test.h"
|
||||
|
||||
static int dev = -EINVAL;
|
||||
module_param(dev, int, S_IRUGO);
|
||||
MODULE_PARM_DESC(dev, "MTD device number to use");
|
||||
|
@ -49,33 +51,6 @@ static int pgcnt;
|
|||
static int goodebcnt;
|
||||
static struct timeval start, finish;
|
||||
|
||||
|
||||
static int erase_eraseblock(int ebnum)
|
||||
{
|
||||
int err;
|
||||
struct erase_info ei;
|
||||
loff_t addr = ebnum * mtd->erasesize;
|
||||
|
||||
memset(&ei, 0, sizeof(struct erase_info));
|
||||
ei.mtd = mtd;
|
||||
ei.addr = addr;
|
||||
ei.len = mtd->erasesize;
|
||||
|
||||
err = mtd_erase(mtd, &ei);
|
||||
if (err) {
|
||||
pr_err("error %d while erasing EB %d\n", err, ebnum);
|
||||
return err;
|
||||
}
|
||||
|
||||
if (ei.state == MTD_ERASE_FAILED) {
|
||||
pr_err("some erase error occurred at EB %d\n",
|
||||
ebnum);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int multiblock_erase(int ebnum, int blocks)
|
||||
{
|
||||
int err;
|
||||
|
@ -103,52 +78,29 @@ static int multiblock_erase(int ebnum, int blocks)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int erase_whole_device(void)
|
||||
{
|
||||
int err;
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < ebcnt; ++i) {
|
||||
if (bbt[i])
|
||||
continue;
|
||||
err = erase_eraseblock(i);
|
||||
if (err)
|
||||
return err;
|
||||
cond_resched();
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int write_eraseblock(int ebnum)
|
||||
{
|
||||
size_t written;
|
||||
int err = 0;
|
||||
int err;
|
||||
loff_t addr = ebnum * mtd->erasesize;
|
||||
|
||||
err = mtd_write(mtd, addr, mtd->erasesize, &written, iobuf);
|
||||
if (err || written != mtd->erasesize) {
|
||||
err = mtdtest_write(mtd, addr, mtd->erasesize, iobuf);
|
||||
if (err)
|
||||
pr_err("error: write failed at %#llx\n", addr);
|
||||
if (!err)
|
||||
err = -EINVAL;
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int write_eraseblock_by_page(int ebnum)
|
||||
{
|
||||
size_t written;
|
||||
int i, err = 0;
|
||||
loff_t addr = ebnum * mtd->erasesize;
|
||||
void *buf = iobuf;
|
||||
|
||||
for (i = 0; i < pgcnt; i++) {
|
||||
err = mtd_write(mtd, addr, pgsize, &written, buf);
|
||||
if (err || written != pgsize) {
|
||||
err = mtdtest_write(mtd, addr, pgsize, buf);
|
||||
if (err) {
|
||||
pr_err("error: write failed at %#llx\n",
|
||||
addr);
|
||||
if (!err)
|
||||
err = -EINVAL;
|
||||
break;
|
||||
}
|
||||
addr += pgsize;
|
||||
|
@ -160,30 +112,26 @@ static int write_eraseblock_by_page(int ebnum)
|
|||
|
||||
static int write_eraseblock_by_2pages(int ebnum)
|
||||
{
|
||||
size_t written, sz = pgsize * 2;
|
||||
size_t sz = pgsize * 2;
|
||||
int i, n = pgcnt / 2, err = 0;
|
||||
loff_t addr = ebnum * mtd->erasesize;
|
||||
void *buf = iobuf;
|
||||
|
||||
for (i = 0; i < n; i++) {
|
||||
err = mtd_write(mtd, addr, sz, &written, buf);
|
||||
if (err || written != sz) {
|
||||
err = mtdtest_write(mtd, addr, sz, buf);
|
||||
if (err) {
|
||||
pr_err("error: write failed at %#llx\n",
|
||||
addr);
|
||||
if (!err)
|
||||
err = -EINVAL;
|
||||
return err;
|
||||
}
|
||||
addr += sz;
|
||||
buf += sz;
|
||||
}
|
||||
if (pgcnt % 2) {
|
||||
err = mtd_write(mtd, addr, pgsize, &written, buf);
|
||||
if (err || written != pgsize) {
|
||||
err = mtdtest_write(mtd, addr, pgsize, buf);
|
||||
if (err) {
|
||||
pr_err("error: write failed at %#llx\n",
|
||||
addr);
|
||||
if (!err)
|
||||
err = -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -192,40 +140,27 @@ static int write_eraseblock_by_2pages(int ebnum)
|
|||
|
||||
static int read_eraseblock(int ebnum)
|
||||
{
|
||||
size_t read;
|
||||
int err = 0;
|
||||
int err;
|
||||
loff_t addr = ebnum * mtd->erasesize;
|
||||
|
||||
err = mtd_read(mtd, addr, mtd->erasesize, &read, iobuf);
|
||||
/* Ignore corrected ECC errors */
|
||||
if (mtd_is_bitflip(err))
|
||||
err = 0;
|
||||
if (err || read != mtd->erasesize) {
|
||||
err = mtdtest_read(mtd, addr, mtd->erasesize, iobuf);
|
||||
if (err)
|
||||
pr_err("error: read failed at %#llx\n", addr);
|
||||
if (!err)
|
||||
err = -EINVAL;
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int read_eraseblock_by_page(int ebnum)
|
||||
{
|
||||
size_t read;
|
||||
int i, err = 0;
|
||||
loff_t addr = ebnum * mtd->erasesize;
|
||||
void *buf = iobuf;
|
||||
|
||||
for (i = 0; i < pgcnt; i++) {
|
||||
err = mtd_read(mtd, addr, pgsize, &read, buf);
|
||||
/* Ignore corrected ECC errors */
|
||||
if (mtd_is_bitflip(err))
|
||||
err = 0;
|
||||
if (err || read != pgsize) {
|
||||
err = mtdtest_read(mtd, addr, pgsize, buf);
|
||||
if (err) {
|
||||
pr_err("error: read failed at %#llx\n",
|
||||
addr);
|
||||
if (!err)
|
||||
err = -EINVAL;
|
||||
break;
|
||||
}
|
||||
addr += pgsize;
|
||||
|
@ -237,53 +172,32 @@ static int read_eraseblock_by_page(int ebnum)
|
|||
|
||||
static int read_eraseblock_by_2pages(int ebnum)
|
||||
{
|
||||
size_t read, sz = pgsize * 2;
|
||||
size_t sz = pgsize * 2;
|
||||
int i, n = pgcnt / 2, err = 0;
|
||||
loff_t addr = ebnum * mtd->erasesize;
|
||||
void *buf = iobuf;
|
||||
|
||||
for (i = 0; i < n; i++) {
|
||||
err = mtd_read(mtd, addr, sz, &read, buf);
|
||||
/* Ignore corrected ECC errors */
|
||||
if (mtd_is_bitflip(err))
|
||||
err = 0;
|
||||
if (err || read != sz) {
|
||||
err = mtdtest_read(mtd, addr, sz, buf);
|
||||
if (err) {
|
||||
pr_err("error: read failed at %#llx\n",
|
||||
addr);
|
||||
if (!err)
|
||||
err = -EINVAL;
|
||||
return err;
|
||||
}
|
||||
addr += sz;
|
||||
buf += sz;
|
||||
}
|
||||
if (pgcnt % 2) {
|
||||
err = mtd_read(mtd, addr, pgsize, &read, buf);
|
||||
/* Ignore corrected ECC errors */
|
||||
if (mtd_is_bitflip(err))
|
||||
err = 0;
|
||||
if (err || read != pgsize) {
|
||||
err = mtdtest_read(mtd, addr, pgsize, buf);
|
||||
if (err) {
|
||||
pr_err("error: read failed at %#llx\n",
|
||||
addr);
|
||||
if (!err)
|
||||
err = -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int is_block_bad(int ebnum)
|
||||
{
|
||||
loff_t addr = ebnum * mtd->erasesize;
|
||||
int ret;
|
||||
|
||||
ret = mtd_block_isbad(mtd, addr);
|
||||
if (ret)
|
||||
pr_info("block %d is bad\n", ebnum);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline void start_timing(void)
|
||||
{
|
||||
do_gettimeofday(&start);
|
||||
|
@ -308,30 +222,6 @@ static long calc_speed(void)
|
|||
return k;
|
||||
}
|
||||
|
||||
static int scan_for_bad_eraseblocks(void)
|
||||
{
|
||||
int i, bad = 0;
|
||||
|
||||
bbt = kzalloc(ebcnt, GFP_KERNEL);
|
||||
if (!bbt)
|
||||
return -ENOMEM;
|
||||
|
||||
if (!mtd_can_have_bb(mtd))
|
||||
goto out;
|
||||
|
||||
pr_info("scanning for bad eraseblocks\n");
|
||||
for (i = 0; i < ebcnt; ++i) {
|
||||
bbt[i] = is_block_bad(i) ? 1 : 0;
|
||||
if (bbt[i])
|
||||
bad += 1;
|
||||
cond_resched();
|
||||
}
|
||||
pr_info("scanned %d eraseblocks, %d are bad\n", i, bad);
|
||||
out:
|
||||
goodebcnt = ebcnt - bad;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __init mtd_speedtest_init(void)
|
||||
{
|
||||
int err, i, blocks, j, k;
|
||||
|
@ -387,11 +277,18 @@ static int __init mtd_speedtest_init(void)
|
|||
|
||||
prandom_bytes(iobuf, mtd->erasesize);
|
||||
|
||||
err = scan_for_bad_eraseblocks();
|
||||
bbt = kzalloc(ebcnt, GFP_KERNEL);
|
||||
if (!bbt)
|
||||
goto out;
|
||||
err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);
|
||||
if (err)
|
||||
goto out;
|
||||
for (i = 0; i < ebcnt; i++) {
|
||||
if (!bbt[i])
|
||||
goodebcnt++;
|
||||
}
|
||||
|
||||
err = erase_whole_device();
|
||||
err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
|
||||
if (err)
|
||||
goto out;
|
||||
|
||||
|
@ -425,7 +322,7 @@ static int __init mtd_speedtest_init(void)
|
|||
speed = calc_speed();
|
||||
pr_info("eraseblock read speed is %ld KiB/s\n", speed);
|
||||
|
||||
err = erase_whole_device();
|
||||
err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
|
||||
if (err)
|
||||
goto out;
|
||||
|
||||
|
@ -459,7 +356,7 @@ static int __init mtd_speedtest_init(void)
|
|||
speed = calc_speed();
|
||||
pr_info("page read speed is %ld KiB/s\n", speed);
|
||||
|
||||
err = erase_whole_device();
|
||||
err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
|
||||
if (err)
|
||||
goto out;
|
||||
|
||||
|
@ -496,14 +393,9 @@ static int __init mtd_speedtest_init(void)
|
|||
/* Erase all eraseblocks */
|
||||
pr_info("Testing erase speed\n");
|
||||
start_timing();
|
||||
for (i = 0; i < ebcnt; ++i) {
|
||||
if (bbt[i])
|
||||
continue;
|
||||
err = erase_eraseblock(i);
|
||||
if (err)
|
||||
goto out;
|
||||
cond_resched();
|
||||
}
|
||||
err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
|
||||
if (err)
|
||||
goto out;
|
||||
stop_timing();
|
||||
speed = calc_speed();
|
||||
pr_info("erase speed is %ld KiB/s\n", speed);
|
||||
|
|
Loading…
Reference in a new issue