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[113.145.60.135]) by mx.google.com with ESMTPSA id bg3sm62887200pbb.44.2013.07.26.19.15.03 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Fri, 26 Jul 2013 19:15:05 -0700 (PDT) From: Akinobu Mita To: linux-mtd@lists.infradead.org Subject: [PATCH -next 3/7] mtd: mtd_pagetest: use mtd_test module Date: Sat, 27 Jul 2013 11:14:12 +0900 Message-Id: <1374891256-20248-4-git-send-email-akinobu.mita@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1374891256-20248-1-git-send-email-akinobu.mita@gmail.com> References: <1374891256-20248-1-git-send-email-akinobu.mita@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130726_221528_210751_56041CC0 X-CRM114-Status: GOOD ( 18.46 ) X-Spam-Score: -2.0 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (akinobu.mita[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature Cc: Artem Bityutskiy , David Woodhouse , Akinobu Mita , Adrian Hunter X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Use mtdtest_write(), mtdtest_read(), mtdtest_erase_eraseblock(), mtdtest_scan_for_bad_eraseblocks(), and mtdtest_erase_whole_device() in mtd_test module. Signed-off-by: Akinobu Mita Cc: Adrian Hunter Cc: Artem Bityutskiy Cc: David Woodhouse Cc: linux-mtd@lists.infradead.org --- drivers/mtd/tests/mtd_pagetest.c | 199 +++++++++++---------------------------- 1 file changed, 55 insertions(+), 144 deletions(-) diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/mtd_pagetest.c index acd991f..87a8ee9 100644 --- a/drivers/mtd/tests/mtd_pagetest.c +++ b/drivers/mtd/tests/mtd_pagetest.c @@ -31,6 +31,8 @@ #include #include +#include "mtd_test.h" + static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -48,42 +50,15 @@ static int pgcnt; static int errcnt; static struct rnd_state rnd_state; -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 write_eraseblock(int ebnum) { - int err = 0; - size_t written; + int err; loff_t addr = ebnum * mtd->erasesize; prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize); cond_resched(); - err = mtd_write(mtd, addr, mtd->erasesize, &written, writebuf); - if (err || written != mtd->erasesize) + err = mtdtest_write(mtd, addr, mtd->erasesize, writebuf); + if (err) pr_err("error: write failed at %#llx\n", (long long)addr); @@ -93,7 +68,6 @@ static int write_eraseblock(int ebnum) static int verify_eraseblock(int ebnum) { uint32_t j; - size_t read; int err = 0, i; loff_t addr0, addrn; loff_t addr = ebnum * mtd->erasesize; @@ -109,27 +83,21 @@ static int verify_eraseblock(int ebnum) prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize); for (j = 0; j < pgcnt - 1; ++j, addr += pgsize) { /* Do a read to set the internal dataRAMs to different data */ - err = mtd_read(mtd, addr0, bufsize, &read, twopages); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != bufsize) { + err = mtdtest_read(mtd, addr0, bufsize, twopages); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr0); return err; } - err = mtd_read(mtd, addrn - bufsize, bufsize, &read, twopages); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != bufsize) { + err = mtdtest_read(mtd, addrn - bufsize, bufsize, twopages); + if (err) { pr_err("error: read failed at %#llx\n", (long long)(addrn - bufsize)); return err; } memset(twopages, 0, bufsize); - err = mtd_read(mtd, addr, bufsize, &read, twopages); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != bufsize) { + err = mtdtest_read(mtd, addr, bufsize, twopages); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr); break; @@ -145,27 +113,21 @@ static int verify_eraseblock(int ebnum) struct rnd_state old_state = rnd_state; /* Do a read to set the internal dataRAMs to different data */ - err = mtd_read(mtd, addr0, bufsize, &read, twopages); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != bufsize) { + err = mtdtest_read(mtd, addr0, bufsize, twopages); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr0); return err; } - err = mtd_read(mtd, addrn - bufsize, bufsize, &read, twopages); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != bufsize) { + err = mtdtest_read(mtd, addrn - bufsize, bufsize, twopages); + if (err) { pr_err("error: read failed at %#llx\n", (long long)(addrn - bufsize)); return err; } memset(twopages, 0, bufsize); - err = mtd_read(mtd, addr, bufsize, &read, twopages); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != bufsize) { + err = mtdtest_read(mtd, addr, bufsize, twopages); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr); return err; @@ -184,7 +146,6 @@ static int verify_eraseblock(int ebnum) static int crosstest(void) { - size_t read; int err = 0, i; loff_t addr, addr0, addrn; unsigned char *pp1, *pp2, *pp3, *pp4; @@ -208,10 +169,8 @@ static int crosstest(void) /* Read 2nd-to-last page to pp1 */ addr = addrn - pgsize - pgsize; - err = mtd_read(mtd, addr, pgsize, &read, pp1); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != pgsize) { + err = mtdtest_read(mtd, addr, pgsize, pp1); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr); kfree(pp1); @@ -220,10 +179,8 @@ static int crosstest(void) /* Read 3rd-to-last page to pp1 */ addr = addrn - pgsize - pgsize - pgsize; - err = mtd_read(mtd, addr, pgsize, &read, pp1); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != pgsize) { + err = mtdtest_read(mtd, addr, pgsize, pp1); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr); kfree(pp1); @@ -233,10 +190,8 @@ static int crosstest(void) /* Read first page to pp2 */ addr = addr0; pr_info("reading page at %#llx\n", (long long)addr); - err = mtd_read(mtd, addr, pgsize, &read, pp2); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != pgsize) { + err = mtdtest_read(mtd, addr, pgsize, pp2); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr); kfree(pp1); @@ -246,10 +201,8 @@ static int crosstest(void) /* Read last page to pp3 */ addr = addrn - pgsize; pr_info("reading page at %#llx\n", (long long)addr); - err = mtd_read(mtd, addr, pgsize, &read, pp3); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != pgsize) { + err = mtdtest_read(mtd, addr, pgsize, pp3); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr); kfree(pp1); @@ -259,10 +212,8 @@ static int crosstest(void) /* Read first page again to pp4 */ addr = addr0; pr_info("reading page at %#llx\n", (long long)addr); - err = mtd_read(mtd, addr, pgsize, &read, pp4); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != pgsize) { + err = mtdtest_read(mtd, addr, pgsize, pp4); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr); kfree(pp1); @@ -283,7 +234,6 @@ static int crosstest(void) static int erasecrosstest(void) { - size_t read, written; int err = 0, i, ebnum, ebnum2; loff_t addr0; char *readbuf = twopages; @@ -302,26 +252,24 @@ static int erasecrosstest(void) ebnum2 -= 1; pr_info("erasing block %d\n", ebnum); - err = erase_eraseblock(ebnum); + err = mtdtest_erase_eraseblock(mtd, ebnum); if (err) return err; pr_info("writing 1st page of block %d\n", ebnum); prandom_bytes_state(&rnd_state, writebuf, pgsize); strcpy(writebuf, "There is no data like this!"); - err = mtd_write(mtd, addr0, pgsize, &written, writebuf); - if (err || written != pgsize) { + err = mtdtest_write(mtd, addr0, pgsize, writebuf); + if (err) { pr_info("error: write failed at %#llx\n", (long long)addr0); - return err ? err : -1; + return err; } pr_info("reading 1st page of block %d\n", ebnum); memset(readbuf, 0, pgsize); - err = mtd_read(mtd, addr0, pgsize, &read, readbuf); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != pgsize) { + err = mtdtest_read(mtd, addr0, pgsize, readbuf); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr0); return err ? err : -1; @@ -335,31 +283,29 @@ static int erasecrosstest(void) } pr_info("erasing block %d\n", ebnum); - err = erase_eraseblock(ebnum); + err = mtdtest_erase_eraseblock(mtd, ebnum); if (err) return err; pr_info("writing 1st page of block %d\n", ebnum); prandom_bytes_state(&rnd_state, writebuf, pgsize); strcpy(writebuf, "There is no data like this!"); - err = mtd_write(mtd, addr0, pgsize, &written, writebuf); - if (err || written != pgsize) { + err = mtdtest_write(mtd, addr0, pgsize, writebuf); + if (err) { pr_err("error: write failed at %#llx\n", (long long)addr0); - return err ? err : -1; + return err; } pr_info("erasing block %d\n", ebnum2); - err = erase_eraseblock(ebnum2); + err = mtdtest_erase_eraseblock(mtd, ebnum2); if (err) return err; pr_info("reading 1st page of block %d\n", ebnum); memset(readbuf, 0, pgsize); - err = mtd_read(mtd, addr0, pgsize, &read, readbuf); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != pgsize) { + err = mtdtest_read(mtd, addr0, pgsize, readbuf); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr0); return err ? err : -1; @@ -379,7 +325,6 @@ static int erasecrosstest(void) static int erasetest(void) { - size_t read, written; int err = 0, i, ebnum, ok = 1; loff_t addr0; @@ -393,29 +338,27 @@ static int erasetest(void) } pr_info("erasing block %d\n", ebnum); - err = erase_eraseblock(ebnum); + err = mtdtest_erase_eraseblock(mtd, ebnum); if (err) return err; pr_info("writing 1st page of block %d\n", ebnum); prandom_bytes_state(&rnd_state, writebuf, pgsize); - err = mtd_write(mtd, addr0, pgsize, &written, writebuf); - if (err || written != pgsize) { + err = mtdtest_write(mtd, addr0, pgsize, writebuf); + if (err) { pr_err("error: write failed at %#llx\n", (long long)addr0); - return err ? err : -1; + return err; } pr_info("erasing block %d\n", ebnum); - err = erase_eraseblock(ebnum); + err = mtdtest_erase_eraseblock(mtd, ebnum); if (err) return err; pr_info("reading 1st page of block %d\n", ebnum); - err = mtd_read(mtd, addr0, pgsize, &read, twopages); - if (mtd_is_bitflip(err)) - err = 0; - if (err || read != pgsize) { + err = mtdtest_read(mtd, addr0, pgsize, twopages); + if (err) { pr_err("error: read failed at %#llx\n", (long long)addr0); return err ? err : -1; @@ -438,36 +381,6 @@ static int erasetest(void) 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 int scan_for_bad_eraseblocks(void) -{ - int i, bad = 0; - - bbt = kzalloc(ebcnt, GFP_KERNEL); - if (!bbt) - return -ENOMEM; - - 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); - return 0; -} - static int __init mtd_pagetest_init(void) { int err = 0; @@ -521,21 +434,19 @@ static int __init mtd_pagetest_init(void) if (!boundary) goto out; - err = scan_for_bad_eraseblocks(); + bbt = kzalloc(ebcnt, GFP_KERNEL); + if (!bbt) + goto out; + err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, ebcnt); if (err) goto out; /* Erase all eraseblocks */ pr_info("erasing whole device\n"); - for (i = 0; i < ebcnt; ++i) { - if (bbt[i]) - continue; - err = erase_eraseblock(i); - if (err) - goto out; - cond_resched(); - } - pr_info("erased %u eraseblocks\n", i); + err = mtdtest_erase_whole_device(mtd, bbt, ebcnt); + if (err) + goto out; + pr_info("erased %u eraseblocks\n", ebcnt); /* Write all eraseblocks */ prandom_seed_state(&rnd_state, 1);