static int read_eraseblock_by_2pages(int ebnum) { 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 = mtdtest_read(mtd, addr, sz, buf); if (err) return err; addr += sz; buf += sz; } if (pgcnt % 2) err = mtdtest_read(mtd, addr, pgsize, buf); return err; }
static int verify_eraseblock(int ebnum) { uint32_t j; int err = 0, i; loff_t addr0, addrn; loff_t addr = (loff_t)ebnum * mtd->erasesize; addr0 = 0; for (i = 0; i < ebcnt && bbt[i]; ++i) addr0 += mtd->erasesize; addrn = mtd->size; for (i = 0; i < ebcnt && bbt[ebcnt - i - 1]; ++i) addrn -= mtd->erasesize; 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 = mtdtest_read(mtd, addr0, bufsize, twopages); if (err) return err; err = mtdtest_read(mtd, addrn - bufsize, bufsize, twopages); if (err) return err; memset(twopages, 0, bufsize); err = mtdtest_read(mtd, addr, bufsize, twopages); if (err) break; if (memcmp(twopages, writebuf + (j * pgsize), bufsize)) { pr_err("error: verify failed at %#llx\n", (long long)addr); errcnt += 1; } } /* Check boundary between eraseblocks */ if (addr <= addrn - pgsize - pgsize && !bbt[ebnum + 1]) { struct rnd_state old_state = rnd_state; /* Do a read to set the internal dataRAMs to different data */ err = mtdtest_read(mtd, addr0, bufsize, twopages); if (err) return err; err = mtdtest_read(mtd, addrn - bufsize, bufsize, twopages); if (err) return err; memset(twopages, 0, bufsize); err = mtdtest_read(mtd, addr, bufsize, twopages); if (err) return err; memcpy(boundary, writebuf + mtd->erasesize - pgsize, pgsize); prandom_bytes_state(&rnd_state, boundary + pgsize, pgsize); if (memcmp(twopages, boundary, bufsize)) { pr_err("error: verify failed at %#llx\n", (long long)addr); errcnt += 1; } rnd_state = old_state; } return err; }
static int erasetest(void) { int err = 0, i, ebnum, ok = 1; loff_t addr0; pr_info("erasetest\n"); ebnum = 0; addr0 = 0; for (i = 0; i < ebcnt && bbt[i]; ++i) { addr0 += mtd->erasesize; ebnum += 1; } pr_info("erasing block %d\n", 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 = mtdtest_write(mtd, addr0, pgsize, writebuf); if (err) return err; pr_info("erasing block %d\n", ebnum); err = mtdtest_erase_eraseblock(mtd, ebnum); if (err) return err; pr_info("reading 1st page of block %d\n", ebnum); err = mtdtest_read(mtd, addr0, pgsize, twopages); if (err) return err; pr_info("verifying 1st page of block %d is all 0xff\n", ebnum); for (i = 0; i < pgsize; ++i) if (twopages[i] != 0xff) { pr_err("verifying all 0xff failed at %d\n", i); errcnt += 1; ok = 0; break; } if (ok && !err) pr_info("erasetest ok\n"); return err; }
static int read_eraseblock_by_page(int ebnum) { int i, err = 0; loff_t addr = ebnum * mtd->erasesize; void *buf = iobuf; for (i = 0; i < pgcnt; i++) { err = mtdtest_read(mtd, addr, pgsize, buf); if (err) break; addr += pgsize; buf += pgsize; } return err; }
static int do_read(void) { int eb = rand_eb(); int offs = rand_offs(); int len = rand_len(offs); loff_t addr; if (bbt[eb + 1]) { if (offs >= mtd->erasesize) offs -= mtd->erasesize; if (offs + len > mtd->erasesize) len = mtd->erasesize - offs; } addr = (loff_t)eb * mtd->erasesize + offs; return mtdtest_read(mtd, addr, len, readbuf); }
static int read_eraseblock_by_page(int ebnum) { int i, ret, err = 0; loff_t addr = (loff_t)ebnum * mtd->erasesize; void *buf = iobuf; void *oobbuf = iobuf1; for (i = 0; i < pgcnt; i++) { memset(buf, 0 , pgsize); ret = mtdtest_read(mtd, addr, pgsize, buf); if (ret) { if (!err) err = ret; } if (mtd->oobsize) { struct mtd_oob_ops ops; ops.mode = MTD_OPS_PLACE_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = mtd->oobsize; ops.oobretlen = 0; ops.ooboffs = 0; ops.datbuf = NULL; ops.oobbuf = oobbuf; ret = mtd_read_oob(mtd, addr, &ops); if ((ret && !mtd_is_bitflip(ret)) || ops.oobretlen != mtd->oobsize) { pr_err("error: read oob failed at " "%#llx\n", (long long)addr); if (!err) err = ret; if (!err) err = -EINVAL; } oobbuf += mtd->oobsize; } addr += pgsize; buf += pgsize; } return err; }
static int read_eraseblock(int ebnum) { loff_t addr = ebnum * mtd->erasesize; return mtdtest_read(mtd, addr, mtd->erasesize, iobuf); }
static int erasecrosstest(void) { int err = 0, i, ebnum, ebnum2; loff_t addr0; char *readbuf = twopages; pr_info("erasecrosstest\n"); ebnum = 0; addr0 = 0; for (i = 0; i < ebcnt && bbt[i]; ++i) { addr0 += mtd->erasesize; ebnum += 1; } ebnum2 = ebcnt - 1; while (ebnum2 && bbt[ebnum2]) ebnum2 -= 1; pr_info("erasing block %d\n", 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 = mtdtest_write(mtd, addr0, pgsize, writebuf); if (err) return err; pr_info("reading 1st page of block %d\n", ebnum); memset(readbuf, 0, pgsize); err = mtdtest_read(mtd, addr0, pgsize, readbuf); if (err) return err; pr_info("verifying 1st page of block %d\n", ebnum); if (memcmp(writebuf, readbuf, pgsize)) { pr_err("verify failed!\n"); errcnt += 1; return -1; } pr_info("erasing block %d\n", 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 = mtdtest_write(mtd, addr0, pgsize, writebuf); if (err) return err; pr_info("erasing block %d\n", 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 = mtdtest_read(mtd, addr0, pgsize, readbuf); if (err) return err; pr_info("verifying 1st page of block %d\n", ebnum); if (memcmp(writebuf, readbuf, pgsize)) { pr_err("verify failed!\n"); errcnt += 1; return -1; } if (!err) pr_info("erasecrosstest ok\n"); return err; }
static int crosstest(void) { int err = 0, i; loff_t addr, addr0, addrn; unsigned char *pp1, *pp2, *pp3, *pp4; pr_info("crosstest\n"); pp1 = kmalloc(pgsize * 4, GFP_KERNEL); if (!pp1) return -ENOMEM; pp2 = pp1 + pgsize; pp3 = pp2 + pgsize; pp4 = pp3 + pgsize; memset(pp1, 0, pgsize * 4); addr0 = 0; for (i = 0; i < ebcnt && bbt[i]; ++i) addr0 += mtd->erasesize; addrn = mtd->size; for (i = 0; i < ebcnt && bbt[ebcnt - i - 1]; ++i) addrn -= mtd->erasesize; /* Read 2nd-to-last page to pp1 */ addr = addrn - pgsize - pgsize; err = mtdtest_read(mtd, addr, pgsize, pp1); if (err) { kfree(pp1); return err; } /* Read 3rd-to-last page to pp1 */ addr = addrn - pgsize - pgsize - pgsize; err = mtdtest_read(mtd, addr, pgsize, pp1); if (err) { kfree(pp1); return err; } /* Read first page to pp2 */ addr = addr0; pr_info("reading page at %#llx\n", (long long)addr); err = mtdtest_read(mtd, addr, pgsize, pp2); if (err) { kfree(pp1); return err; } /* Read last page to pp3 */ addr = addrn - pgsize; pr_info("reading page at %#llx\n", (long long)addr); err = mtdtest_read(mtd, addr, pgsize, pp3); if (err) { kfree(pp1); return err; } /* Read first page again to pp4 */ addr = addr0; pr_info("reading page at %#llx\n", (long long)addr); err = mtdtest_read(mtd, addr, pgsize, pp4); if (err) { kfree(pp1); return err; } /* pp2 and pp4 should be the same */ pr_info("verifying pages read at %#llx match\n", (long long)addr0); if (memcmp(pp2, pp4, pgsize)) { pr_err("verify failed!\n"); errcnt += 1; } else if (!err) pr_info("crosstest ok\n"); kfree(pp1); return err; }