-/*
+/*
* NFTL mount code with extensive checks
*
- * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
+ * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
* Copyright (C) 2000 Netgem S.A.
*
- * $Id: nftlmount.c,v 1.40 2004/11/22 14:38:29 kalev Exp $
+ * $Id: nftlmount.c,v 1.41 2005/11/07 11:14:21 gleixner Exp $
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#define SECTORSIZE 512
-char nftlmountrev[]="$Revision: 1.40 $";
+char nftlmountrev[]="$Revision: 1.41 $";
+
+extern int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
+ size_t *retlen, uint8_t *buf);
+extern int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
+ size_t *retlen, uint8_t *buf);
/* find_boot_record: Find the NFTL Media Header and its Spare copy which contains the
* various device information of the NFTL partition and Bad Unit Table. Update
size_t retlen;
u8 buf[SECTORSIZE];
struct NFTLMediaHeader *mh = &nftl->MediaHdr;
+ struct mtd_info *mtd = nftl->mbd.mtd;
unsigned int i;
- /* Assume logical EraseSize == physical erasesize for starting the scan.
+ /* Assume logical EraseSize == physical erasesize for starting the scan.
We'll sort it out later if we find a MediaHeader which says otherwise */
/* Actually, we won't. The new DiskOnChip driver has already scanned
the MediaHeader and adjusted the virtual erasesize it presents in
/* Check for ANAND header first. Then can whinge if it's found but later
checks fail */
- ret = MTD_READ(nftl->mbd.mtd, block * nftl->EraseSize, SECTORSIZE, &retlen, buf);
+ ret = mtd->read(mtd, block * nftl->EraseSize, SECTORSIZE,
+ &retlen, buf);
/* We ignore ret in case the ECC of the MediaHeader is invalid
(which is apparently acceptable) */
if (retlen != SECTORSIZE) {
if (retlen < 6 || memcmp(buf, "ANAND", 6)) {
/* ANAND\0 not found. Continue */
#if 0
- printk(KERN_DEBUG "ANAND header not found at 0x%x in mtd%d\n",
+ printk(KERN_DEBUG "ANAND header not found at 0x%x in mtd%d\n",
block * nftl->EraseSize, nftl->mbd.mtd->index);
-#endif
+#endif
continue;
}
/* To be safer with BIOS, also use erase mark as discriminant */
- if ((ret = MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + SECTORSIZE + 8,
- 8, &retlen, (char *)&h1) < 0)) {
+ if ((ret = nftl_read_oob(mtd, block * nftl->EraseSize +
+ SECTORSIZE + 8, 8, &retlen,
+ (char *)&h1) < 0)) {
printk(KERN_WARNING "ANAND header found at 0x%x in mtd%d, but OOB data read failed (err %d)\n",
block * nftl->EraseSize, nftl->mbd.mtd->index, ret);
continue;
*/
if (le16_to_cpu(h1.EraseMark | h1.EraseMark1) != ERASE_MARK) {
printk(KERN_NOTICE "ANAND header found at 0x%x in mtd%d, but erase mark not present (0x%04x,0x%04x instead)\n",
- block * nftl->EraseSize, nftl->mbd.mtd->index,
+ block * nftl->EraseSize, nftl->mbd.mtd->index,
le16_to_cpu(h1.EraseMark), le16_to_cpu(h1.EraseMark1));
continue;
}
/* Finally reread to check ECC */
- if ((ret = MTD_READECC(nftl->mbd.mtd, block * nftl->EraseSize, SECTORSIZE,
- &retlen, buf, (char *)&oob, NULL) < 0)) {
+ if ((ret = mtd->read(mtd, block * nftl->EraseSize, SECTORSIZE,
+ &retlen, buf) < 0)) {
printk(KERN_NOTICE "ANAND header found at 0x%x in mtd%d, but ECC read failed (err %d)\n",
block * nftl->EraseSize, nftl->mbd.mtd->index, ret);
continue;
nftl->nb_boot_blocks = le16_to_cpu(mh->FirstPhysicalEUN);
if ((nftl->nb_boot_blocks + 2) >= nftl->nb_blocks) {
printk(KERN_NOTICE "NFTL Media Header sanity check failed:\n");
- printk(KERN_NOTICE "nb_boot_blocks (%d) + 2 > nb_blocks (%d)\n",
+ printk(KERN_NOTICE "nb_boot_blocks (%d) + 2 > nb_blocks (%d)\n",
nftl->nb_boot_blocks, nftl->nb_blocks);
return -1;
}
nftl->numvunits, nftl->nb_blocks, nftl->nb_boot_blocks);
return -1;
}
-
+
nftl->mbd.size = nftl->numvunits * (nftl->EraseSize / SECTORSIZE);
/* If we're not using the last sectors in the device for some reason,
printk(KERN_NOTICE "NFTL: allocation of ReplUnitTable failed\n");
return -ENOMEM;
}
-
+
/* mark the bios blocks (blocks before NFTL MediaHeader) as reserved */
for (i = 0; i < nftl->nb_boot_blocks; i++)
nftl->ReplUnitTable[i] = BLOCK_RESERVED;
/* mark all remaining blocks as potentially containing data */
- for (; i < nftl->nb_blocks; i++) {
+ for (; i < nftl->nb_blocks; i++) {
nftl->ReplUnitTable[i] = BLOCK_NOTEXPLORED;
}
The new DiskOnChip driver already scanned the bad block table. Just query it.
if ((i & (SECTORSIZE - 1)) == 0) {
/* read one sector for every SECTORSIZE of blocks */
- if ((ret = MTD_READECC(nftl->mbd.mtd, block * nftl->EraseSize +
- i + SECTORSIZE, SECTORSIZE, &retlen, buf,
- (char *)&oob, NULL)) < 0) {
+ if ((ret = mtd->read(nftl->mbd.mtd, block * nftl->EraseSize +
+ i + SECTORSIZE, SECTORSIZE, &retlen,
+ buf)) < 0) {
printk(KERN_NOTICE "Read of bad sector table failed (err %d)\n",
ret);
kfree(nftl->ReplUnitTable);
if (nftl->mbd.mtd->block_isbad(nftl->mbd.mtd, i * nftl->EraseSize))
nftl->ReplUnitTable[i] = BLOCK_RESERVED;
}
-
+
nftl->MediaUnit = block;
boot_record_count++;
-
+
} /* foreach (block) */
-
+
return boot_record_count?0:-1;
}
}
/* check_free_sector: check if a free sector is actually FREE, i.e. All 0xff in data and oob area */
-static int check_free_sectors(struct NFTLrecord *nftl, unsigned int address, int len,
+static int check_free_sectors(struct NFTLrecord *nftl, unsigned int address, int len,
int check_oob)
{
- int i;
- size_t retlen;
u8 buf[SECTORSIZE + nftl->mbd.mtd->oobsize];
+ struct mtd_info *mtd = nftl->mbd.mtd;
+ size_t retlen;
+ int i;
for (i = 0; i < len; i += SECTORSIZE) {
- if (MTD_READECC(nftl->mbd.mtd, address, SECTORSIZE, &retlen, buf, &buf[SECTORSIZE], &nftl->oobinfo) < 0)
+ if (mtd->read(mtd, address, SECTORSIZE, &retlen, buf))
return -1;
if (memcmpb(buf, 0xff, SECTORSIZE) != 0)
return -1;
if (check_oob) {
- if (memcmpb(buf + SECTORSIZE, 0xff, nftl->mbd.mtd->oobsize) != 0)
+ if(nftl_read_oob(mtd, address, mtd->oobsize,
+ &retlen, &buf[SECTORSIZE]) < 0)
+ return -1;
+ if (memcmpb(buf + SECTORSIZE, 0xff, mtd->oobsize) != 0)
return -1;
}
address += SECTORSIZE;
*
* Return: 0 when succeed, -1 on error.
*
- * ToDo: 1. Is it neceressary to check_free_sector after erasing ??
+ * ToDo: 1. Is it neceressary to check_free_sector after erasing ??
*/
int NFTL_formatblock(struct NFTLrecord *nftl, int block)
{
unsigned int nb_erases, erase_mark;
struct nftl_uci1 uci;
struct erase_info *instr = &nftl->instr;
+ struct mtd_info *mtd = nftl->mbd.mtd;
/* Read the Unit Control Information #1 for Wear-Leveling */
- if (MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + SECTORSIZE + 8,
- 8, &retlen, (char *)&uci) < 0)
+ if (nftl_read_oob(mtd, block * nftl->EraseSize + SECTORSIZE + 8,
+ 8, &retlen, (char *)&uci) < 0)
goto default_uci1;
erase_mark = le16_to_cpu ((uci.EraseMark | uci.EraseMark1));
instr->mtd = nftl->mbd.mtd;
instr->addr = block * nftl->EraseSize;
instr->len = nftl->EraseSize;
- MTD_ERASE(nftl->mbd.mtd, instr);
+ mtd->erase(mtd, instr);
if (instr->state == MTD_ERASE_FAILED) {
printk("Error while formatting block %d\n", block);
goto fail;
uci.WearInfo = le32_to_cpu(nb_erases);
- if (MTD_WRITEOOB(nftl->mbd.mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,
- &retlen, (char *)&uci) < 0)
+ if (nftl_write_oob(mtd, block * nftl->EraseSize + SECTORSIZE +
+ 8, 8, &retlen, (char *)&uci) < 0)
goto fail;
return 0;
fail:
* case. */
static void check_sectors_in_chain(struct NFTLrecord *nftl, unsigned int first_block)
{
+ struct mtd_info *mtd = nftl->mbd.mtd;
unsigned int block, i, status;
struct nftl_bci bci;
int sectors_per_block;
block = first_block;
for (;;) {
for (i = 0; i < sectors_per_block; i++) {
- if (MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + i * SECTORSIZE,
- 8, &retlen, (char *)&bci) < 0)
+ if (nftl_read_oob(mtd,
+ block * nftl->EraseSize + i * SECTORSIZE,
+ 8, &retlen, (char *)&bci) < 0)
status = SECTOR_IGNORE;
else
status = bci.Status | bci.Status1;
/* verify that the sector is really free. If not, mark
as ignore */
if (memcmpb(&bci, 0xff, 8) != 0 ||
- check_free_sectors(nftl, block * nftl->EraseSize + i * SECTORSIZE,
+ check_free_sectors(nftl, block * nftl->EraseSize + i * SECTORSIZE,
SECTORSIZE, 0) != 0) {
printk("Incorrect free sector %d in block %d: "
"marking it as ignored\n",
/* sector not free actually : mark it as SECTOR_IGNORE */
bci.Status = SECTOR_IGNORE;
bci.Status1 = SECTOR_IGNORE;
- MTD_WRITEOOB(nftl->mbd.mtd,
- block * nftl->EraseSize + i * SECTORSIZE,
- 8, &retlen, (char *)&bci);
+ nftl_write_oob(mtd, block *
+ nftl->EraseSize +
+ i * SECTORSIZE, 8,
+ &retlen, (char *)&bci);
}
break;
default:
* 1. */
static int check_and_mark_free_block(struct NFTLrecord *nftl, int block)
{
+ struct mtd_info *mtd = nftl->mbd.mtd;
struct nftl_uci1 h1;
unsigned int erase_mark;
size_t retlen;
/* check erase mark. */
- if (MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,
- &retlen, (char *)&h1) < 0)
+ if (nftl_read_oob(mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,
+ &retlen, (char *)&h1) < 0)
return -1;
erase_mark = le16_to_cpu ((h1.EraseMark | h1.EraseMark1));
h1.EraseMark = cpu_to_le16(ERASE_MARK);
h1.EraseMark1 = cpu_to_le16(ERASE_MARK);
h1.WearInfo = cpu_to_le32(0);
- if (MTD_WRITEOOB(nftl->mbd.mtd, block * nftl->EraseSize + SECTORSIZE + 8, 8,
- &retlen, (char *)&h1) < 0)
+ if (nftl_write_oob(mtd,
+ block * nftl->EraseSize + SECTORSIZE + 8, 8,
+ &retlen, (char *)&h1) < 0)
return -1;
} else {
#if 0
SECTORSIZE, 0) != 0)
return -1;
- if (MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + i,
- 16, &retlen, buf) < 0)
+ if (nftl_read_oob(mtd, block * nftl->EraseSize + i,
+ 16, &retlen, buf) < 0)
return -1;
if (i == SECTORSIZE) {
/* skip erase mark */
*/
static int get_fold_mark(struct NFTLrecord *nftl, unsigned int block)
{
+ struct mtd_info *mtd = nftl->mbd.mtd;
struct nftl_uci2 uci;
size_t retlen;
- if (MTD_READOOB(nftl->mbd.mtd, block * nftl->EraseSize + 2 * SECTORSIZE + 8,
- 8, &retlen, (char *)&uci) < 0)
+ if (nftl_read_oob(mtd, block * nftl->EraseSize + 2 * SECTORSIZE + 8,
+ 8, &retlen, (char *)&uci) < 0)
return 0;
return le16_to_cpu((uci.FoldMark | uci.FoldMark1));
int chain_length, do_format_chain;
struct nftl_uci0 h0;
struct nftl_uci1 h1;
+ struct mtd_info *mtd = s->mbd.mtd;
size_t retlen;
/* search for NFTL MediaHeader and Spare NFTL Media Header */
for (;;) {
/* read the block header. If error, we format the chain */
- if (MTD_READOOB(s->mbd.mtd, block * s->EraseSize + 8, 8,
- &retlen, (char *)&h0) < 0 ||
- MTD_READOOB(s->mbd.mtd, block * s->EraseSize + SECTORSIZE + 8, 8,
- &retlen, (char *)&h1) < 0) {
+ if (nftl_read_oob(mtd,
+ block * s->EraseSize + 8, 8,
+ &retlen, (char *)&h0) < 0 ||
+ nftl_read_oob(mtd,
+ block * s->EraseSize +
+ SECTORSIZE + 8, 8,
+ &retlen, (char *)&h1) < 0) {
s->ReplUnitTable[block] = BLOCK_NIL;
do_format_chain = 1;
break;
first_logical_block = logical_block;
} else {
if (logical_block != first_logical_block) {
- printk("Block %d: incorrect logical block: %d expected: %d\n",
+ printk("Block %d: incorrect logical block: %d expected: %d\n",
block, logical_block, first_logical_block);
/* the chain is incorrect : we must format it,
but we need to read it completly */
s->ReplUnitTable[block] = BLOCK_NIL;
break;
} else if (rep_block >= s->nb_blocks) {
- printk("Block %d: referencing invalid block %d\n",
+ printk("Block %d: referencing invalid block %d\n",
block, rep_block);
do_format_chain = 1;
s->ReplUnitTable[block] = BLOCK_NIL;
s->ReplUnitTable[block] = rep_block;
s->EUNtable[first_logical_block] = BLOCK_NIL;
} else {
- printk("Block %d: referencing block %d already in another chain\n",
+ printk("Block %d: referencing block %d already in another chain\n",
block, rep_block);
/* XXX: should handle correctly fold in progress chains */
do_format_chain = 1;
} else {
unsigned int first_block1, chain_to_format, chain_length1;
int fold_mark;
-
+
/* valid chain : get foldmark */
fold_mark = get_fold_mark(s, first_block);
if (fold_mark == 0) {
if (first_block1 != BLOCK_NIL) {
/* XXX: what to do if same length ? */
chain_length1 = calc_chain_length(s, first_block1);
- printk("Two chains at blocks %d (len=%d) and %d (len=%d)\n",
+ printk("Two chains at blocks %d (len=%d) and %d (len=%d)\n",
first_block1, chain_length1, first_block, chain_length);
-
+
if (chain_length >= chain_length1) {
chain_to_format = first_block1;
s->EUNtable[first_logical_block] = first_block;
git://git.onelab.eu / linux-2.6.git / blobdiff