diff options
author | Akinobu Mita <akinobu.mita@gmail.com> | 2013-08-03 09:52:12 (GMT) |
---|---|---|
committer | David Woodhouse <David.Woodhouse@intel.com> | 2013-08-30 20:34:19 (GMT) |
commit | 59b0816d7c7de3c14d6dd59da3baa3deffb973da (patch) | |
tree | 8a6c50fd8d9c316604bf25e52c780a79909f399f | |
parent | bf9c223664e6f5fdf538919c715c45c26dbb4268 (diff) | |
download | linux-59b0816d7c7de3c14d6dd59da3baa3deffb973da.tar.xz |
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>
-rw-r--r-- | drivers/mtd/tests/speedtest.c | 180 |
1 files changed, 36 insertions, 144 deletions
diff --git a/drivers/mtd/tests/speedtest.c b/drivers/mtd/tests/speedtest.c index 20b63d1..457c45c 100644 --- a/drivers/mtd/tests/speedtest.c +++ b/drivers/mtd/tests/speedtest.c @@ -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); |