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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Browse Source 
Conflicts:

	drivers/ata/libata-scsi.c
	include/linux/libata.h

Futher merge of Linus's head and compilation fixups.

Signed-Off-By: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2006-12-05 17:01:28 +00:00
committed by David Howells
parent 4c1ac1b491 e62438630c
commit 9db7372445
588 changed files with 32381 additions and 9380 deletions
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330
drivers/ata/libata-scsi.c
View File

@@ -671,7 +671,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc,
}
/*
* ata_gen_ata_desc_sense - Generate check condition sense block.
* ata_gen_passthru_sense - Generate check condition sense block.
* @qc: Command that completed.
*
* This function is specific to the ATA descriptor format sense
@@ -681,9 +681,9 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc,
* block. Clear sense key, ASC & ASCQ if there is no error.
*
* LOCKING:
* spin_lock_irqsave(host lock)
* None.
*/
void ata_gen_ata_desc_sense(struct ata_queued_cmd *qc)
static void ata_gen_passthru_sense(struct ata_queued_cmd *qc)
{
struct scsi_cmnd *cmd = qc->scsicmd;
struct ata_taskfile *tf = &qc->result_tf;
@@ -713,12 +713,9 @@ void ata_gen_ata_desc_sense(struct ata_queued_cmd *qc)
desc[0] = 0x09;
/*
* Set length of additional sense data.
* Since we only populate descriptor 0, the total
* length is the same (fixed) length as descriptor 0.
*/
desc[1] = sb[7] = 14;
/* set length of additional sense data */
sb[7] = 14;
desc[1] = 12;
/*
* Copy registers into sense buffer.
@@ -746,56 +743,56 @@ void ata_gen_ata_desc_sense(struct ata_queued_cmd *qc)
}
/**
* ata_gen_fixed_sense - generate a SCSI fixed sense block
* ata_gen_ata_sense - generate a SCSI fixed sense block
* @qc: Command that we are erroring out
*
* Leverage ata_to_sense_error() to give us the codes. Fit our
* LBA in here if there's room.
* Generate sense block for a failed ATA command @qc. Descriptor
* format is used to accomodate LBA48 block address.
*
* LOCKING:
* inherited from caller
* None.
*/
void ata_gen_fixed_sense(struct ata_queued_cmd *qc)
static void ata_gen_ata_sense(struct ata_queued_cmd *qc)
{
struct ata_device *dev = qc->dev;
struct scsi_cmnd *cmd = qc->scsicmd;
struct ata_taskfile *tf = &qc->result_tf;
unsigned char *sb = cmd->sense_buffer;
unsigned char *desc = sb + 8;
int verbose = qc->ap->ops->error_handler == NULL;
u64 block;
memset(sb, 0, SCSI_SENSE_BUFFERSIZE);
cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
/*
* Use ata_to_sense_error() to map status register bits
/* sense data is current and format is descriptor */
sb[0] = 0x72;
/* Use ata_to_sense_error() to map status register bits
* onto sense key, asc & ascq.
*/
if (qc->err_mask ||
tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
ata_to_sense_error(qc->ap->id, tf->command, tf->feature,
&sb[2], &sb[12], &sb[13], verbose);
sb[2] &= 0x0f;
&sb[1], &sb[2], &sb[3], verbose);
sb[1] &= 0x0f;
}
sb[0] = 0x70;
sb[7] = 0x0a;
block = ata_tf_read_block(&qc->result_tf, dev);
if (tf->flags & ATA_TFLAG_LBA48) {
/* TODO: find solution for LBA48 descriptors */
}
/* information sense data descriptor */
sb[7] = 12;
desc[0] = 0x00;
desc[1] = 10;
else if (tf->flags & ATA_TFLAG_LBA) {
/* A small (28b) LBA will fit in the 32b info field */
sb[0] |= 0x80; /* set valid bit */
sb[3] = tf->device & 0x0f;
sb[4] = tf->lbah;
sb[5] = tf->lbam;
sb[6] = tf->lbal;
}
else {
/* TODO: C/H/S */
}
desc[2] |= 0x80; /* valid */
desc[6] = block >> 40;
desc[7] = block >> 32;
desc[8] = block >> 24;
desc[9] = block >> 16;
desc[10] = block >> 8;
desc[11] = block;
}
static void ata_scsi_sdev_config(struct scsi_device *sdev)
@@ -807,23 +804,10 @@ static void ata_scsi_sdev_config(struct scsi_device *sdev)
static void ata_scsi_dev_config(struct scsi_device *sdev,
struct ata_device *dev)
{
unsigned int max_sectors;
/* configure max sectors */
blk_queue_max_sectors(sdev->request_queue, dev->max_sectors);
/* TODO: 2048 is an arbitrary number, not the
* hardware maximum. This should be increased to
* 65534 when Jens Axboe's patch for dynamically
* determining max_sectors is merged.
*/
max_sectors = ATA_MAX_SECTORS;
if (dev->flags & ATA_DFLAG_LBA48)
max_sectors = ATA_MAX_SECTORS_LBA48;
if (dev->max_sectors)
max_sectors = dev->max_sectors;
blk_queue_max_sectors(sdev->request_queue, max_sectors);
/*
* SATA DMA transfers must be multiples of 4 byte, so
/* SATA DMA transfers must be multiples of 4 byte, so
* we need to pad ATAPI transfers using an extra sg.
* Decrement max hw segments accordingly.
*/
@@ -1040,8 +1024,7 @@ static unsigned int ata_scsi_flush_xlat(struct ata_queued_cmd *qc, const u8 *scs
tf->flags |= ATA_TFLAG_DEVICE;
tf->protocol = ATA_PROT_NODATA;
if ((qc->dev->flags & ATA_DFLAG_LBA48) &&
(ata_id_has_flush_ext(qc->dev->id)))
if (qc->dev->flags & ATA_DFLAG_FLUSH_EXT)
tf->command = ATA_CMD_FLUSH_EXT;
else
tf->command = ATA_CMD_FLUSH;
@@ -1282,17 +1265,14 @@ nothing_to_do:
static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicmd)
{
struct ata_taskfile *tf = &qc->tf;
struct ata_device *dev = qc->dev;
unsigned int tf_flags = 0;
u64 block;
u32 n_block;
qc->flags |= ATA_QCFLAG_IO;
tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
int rc;
if (scsicmd[0] == WRITE_10 || scsicmd[0] == WRITE_6 ||
scsicmd[0] == WRITE_16)
tf->flags |= ATA_TFLAG_WRITE;
tf_flags |= ATA_TFLAG_WRITE;
/* Calculate the SCSI LBA, transfer length and FUA. */
switch (scsicmd[0]) {
@@ -1300,7 +1280,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
case WRITE_10:
scsi_10_lba_len(scsicmd, &block, &n_block);
if (unlikely(scsicmd[1] & (1 << 3)))
tf->flags |= ATA_TFLAG_FUA;
tf_flags |= ATA_TFLAG_FUA;
break;
case READ_6:
case WRITE_6:
@@ -1316,7 +1296,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
case WRITE_16:
scsi_16_lba_len(scsicmd, &block, &n_block);
if (unlikely(scsicmd[1] & (1 << 3)))
tf->flags |= ATA_TFLAG_FUA;
tf_flags |= ATA_TFLAG_FUA;
break;
default:
DPRINTK("no-byte command\n");
@@ -1334,106 +1314,17 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
*/
goto nothing_to_do;
if ((dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF |
ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ) {
/* yay, NCQ */
if (!lba_48_ok(block, n_block))
goto out_of_range;
qc->flags |= ATA_QCFLAG_IO;
qc->nsect = n_block;
tf->protocol = ATA_PROT_NCQ;
tf->flags |= ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
if (tf->flags & ATA_TFLAG_WRITE)
tf->command = ATA_CMD_FPDMA_WRITE;
else
tf->command = ATA_CMD_FPDMA_READ;
qc->nsect = n_block;
tf->nsect = qc->tag << 3;
tf->hob_feature = (n_block >> 8) & 0xff;
tf->feature = n_block & 0xff;
tf->hob_lbah = (block >> 40) & 0xff;
tf->hob_lbam = (block >> 32) & 0xff;
tf->hob_lbal = (block >> 24) & 0xff;
tf->lbah = (block >> 16) & 0xff;
tf->lbam = (block >> 8) & 0xff;
tf->lbal = block & 0xff;
tf->device = 1 << 6;
if (tf->flags & ATA_TFLAG_FUA)
tf->device |= 1 << 7;
} else if (dev->flags & ATA_DFLAG_LBA) {
tf->flags |= ATA_TFLAG_LBA;
if (lba_28_ok(block, n_block)) {
/* use LBA28 */
tf->device |= (block >> 24) & 0xf;
} else if (lba_48_ok(block, n_block)) {
if (!(dev->flags & ATA_DFLAG_LBA48))
goto out_of_range;
/* use LBA48 */
tf->flags |= ATA_TFLAG_LBA48;
tf->hob_nsect = (n_block >> 8) & 0xff;
tf->hob_lbah = (block >> 40) & 0xff;
tf->hob_lbam = (block >> 32) & 0xff;
tf->hob_lbal = (block >> 24) & 0xff;
} else
/* request too large even for LBA48 */
goto out_of_range;
if (unlikely(ata_rwcmd_protocol(qc) < 0))
goto invalid_fld;
qc->nsect = n_block;
tf->nsect = n_block & 0xff;
tf->lbah = (block >> 16) & 0xff;
tf->lbam = (block >> 8) & 0xff;
tf->lbal = block & 0xff;
tf->device |= ATA_LBA;
} else {
/* CHS */
u32 sect, head, cyl, track;
/* The request -may- be too large for CHS addressing. */
if (!lba_28_ok(block, n_block))
goto out_of_range;
if (unlikely(ata_rwcmd_protocol(qc) < 0))
goto invalid_fld;
/* Convert LBA to CHS */
track = (u32)block / dev->sectors;
cyl = track / dev->heads;
head = track % dev->heads;
sect = (u32)block % dev->sectors + 1;
DPRINTK("block %u track %u cyl %u head %u sect %u\n",
(u32)block, track, cyl, head, sect);
/* Check whether the converted CHS can fit.
Cylinder: 0-65535
Head: 0-15
Sector: 1-255*/
if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect))
goto out_of_range;
qc->nsect = n_block;
tf->nsect = n_block & 0xff; /* Sector count 0 means 256 sectors */
tf->lbal = sect;
tf->lbam = cyl;
tf->lbah = cyl >> 8;
tf->device |= head;
}
return 0;
rc = ata_build_rw_tf(&qc->tf, qc->dev, block, n_block, tf_flags,
qc->tag);
if (likely(rc == 0))
return 0;
if (rc == -ERANGE)
goto out_of_range;
/* treat all other errors as -EINVAL, fall through */
invalid_fld:
ata_scsi_set_sense(qc->scsicmd, ILLEGAL_REQUEST, 0x24, 0x0);
/* "Invalid field in cbd" */
@@ -1477,7 +1368,7 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
*/
if (((cdb[0] == ATA_16) || (cdb[0] == ATA_12)) &&
((cdb[2] & 0x20) || need_sense)) {
ata_gen_ata_desc_sense(qc);
ata_gen_passthru_sense(qc);
} else {
if (!need_sense) {
cmd->result = SAM_STAT_GOOD;
@@ -1488,7 +1379,7 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
* good for smaller LBA (and maybe CHS?)
* devices.
*/
ata_gen_fixed_sense(qc);
ata_gen_ata_sense(qc);
}
}
@@ -1714,6 +1605,22 @@ void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
args->done(cmd);
}
/**
* ATA_SCSI_RBUF_SET - helper to set values in SCSI response buffer
* @idx: byte index into SCSI response buffer
* @val: value to set
*
* To be used by SCSI command simulator functions. This macros
* expects two local variables, u8 *rbuf and unsigned int buflen,
* are in scope.
*
* LOCKING:
* None.
*/
#define ATA_SCSI_RBUF_SET(idx, val) do { \
if ((idx) < buflen) rbuf[(idx)] = (u8)(val); \
} while (0)
/**
* ata_scsiop_inq_std - Simulate INQUIRY command
* @args: device IDENTIFY data / SCSI command of interest.
@@ -2173,67 +2080,42 @@ saving_not_supp:
* Simulate READ CAPACITY commands.
*
* LOCKING:
* spin_lock_irqsave(host lock)
* None.
*/
unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
unsigned int buflen)
{
u64 n_sectors;
u32 tmp;
u64 last_lba = args->dev->n_sectors - 1; /* LBA of the last block */
VPRINTK("ENTER\n");
if (ata_id_has_lba(args->id)) {
if (ata_id_has_lba48(args->id))
n_sectors = ata_id_u64(args->id, 100);
else
n_sectors = ata_id_u32(args->id, 60);
} else {
/* CHS default translation */
n_sectors = args->id[1] * args->id[3] * args->id[6];
if (ata_id_current_chs_valid(args->id))
/* CHS current translation */
n_sectors = ata_id_u32(args->id, 57);
}
n_sectors--; /* ATA TotalUserSectors - 1 */
if (args->cmd->cmnd[0] == READ_CAPACITY) {
if( n_sectors >= 0xffffffffULL )
tmp = 0xffffffff ; /* Return max count on overflow */
else
tmp = n_sectors ;
if (last_lba >= 0xffffffffULL)
last_lba = 0xffffffff;
/* sector count, 32-bit */
rbuf[0] = tmp >> (8 * 3);
rbuf[1] = tmp >> (8 * 2);
rbuf[2] = tmp >> (8 * 1);
rbuf[3] = tmp;
ATA_SCSI_RBUF_SET(0, last_lba >> (8 * 3));
ATA_SCSI_RBUF_SET(1, last_lba >> (8 * 2));
ATA_SCSI_RBUF_SET(2, last_lba >> (8 * 1));
ATA_SCSI_RBUF_SET(3, last_lba);
/* sector size */
tmp = ATA_SECT_SIZE;
rbuf[6] = tmp >> 8;
rbuf[7] = tmp;
ATA_SCSI_RBUF_SET(6, ATA_SECT_SIZE >> 8);
ATA_SCSI_RBUF_SET(7, ATA_SECT_SIZE);
} else {
/* sector count, 64-bit */
tmp = n_sectors >> (8 * 4);
rbuf[2] = tmp >> (8 * 3);
rbuf[3] = tmp >> (8 * 2);
rbuf[4] = tmp >> (8 * 1);
rbuf[5] = tmp;
tmp = n_sectors;
rbuf[6] = tmp >> (8 * 3);
rbuf[7] = tmp >> (8 * 2);
rbuf[8] = tmp >> (8 * 1);
rbuf[9] = tmp;
ATA_SCSI_RBUF_SET(0, last_lba >> (8 * 7));
ATA_SCSI_RBUF_SET(1, last_lba >> (8 * 6));
ATA_SCSI_RBUF_SET(2, last_lba >> (8 * 5));
ATA_SCSI_RBUF_SET(3, last_lba >> (8 * 4));
ATA_SCSI_RBUF_SET(4, last_lba >> (8 * 3));
ATA_SCSI_RBUF_SET(5, last_lba >> (8 * 2));
ATA_SCSI_RBUF_SET(6, last_lba >> (8 * 1));
ATA_SCSI_RBUF_SET(7, last_lba);
/* sector size */
tmp = ATA_SECT_SIZE;
rbuf[12] = tmp >> 8;
rbuf[13] = tmp;
ATA_SCSI_RBUF_SET(10, ATA_SECT_SIZE >> 8);
ATA_SCSI_RBUF_SET(11, ATA_SECT_SIZE);
}
return 0;
@@ -2319,7 +2201,7 @@ static void atapi_sense_complete(struct ata_queued_cmd *qc)
* a sense descriptors, since that's only
* correct for ATA, not ATAPI
*/
ata_gen_ata_desc_sense(qc);
ata_gen_passthru_sense(qc);
}
qc->scsidone(qc->scsicmd);
@@ -2394,7 +2276,7 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
* sense descriptors, since that's only
* correct for ATA, not ATAPI
*/
ata_gen_ata_desc_sense(qc);
ata_gen_passthru_sense(qc);
}
/* SCSI EH automatically locks door if sdev->locked is
@@ -2427,7 +2309,7 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
* a sense descriptors, since that's only
* correct for ATA, not ATAPI
*/
ata_gen_ata_desc_sense(qc);
ata_gen_passthru_sense(qc);
} else {
u8 *scsicmd = cmd->cmnd;
@@ -3183,10 +3065,12 @@ static int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
rc = -EINVAL;
}
if (rc == 0)
if (rc == 0) {
ata_port_schedule_eh(ap);
spin_unlock_irqrestore(ap->lock, flags);
spin_unlock_irqrestore(ap->lock, flags);
ata_port_wait_eh(ap);
} else
spin_unlock_irqrestore(ap->lock, flags);
return rc;
}
@@ -3207,15 +3091,27 @@ void ata_scsi_dev_rescan(struct work_struct *work)
{
struct ata_port *ap =
container_of(work, struct ata_port, scsi_rescan_task);
struct ata_device *dev;
unsigned long flags;
unsigned int i;
for (i = 0; i < ATA_MAX_DEVICES; i++) {
dev = &ap->device[i];
spin_lock_irqsave(ap->lock, flags);
if (ata_dev_enabled(dev) && dev->sdev)
scsi_rescan_device(&(dev->sdev->sdev_gendev));
for (i = 0; i < ATA_MAX_DEVICES; i++) {
struct ata_device *dev = &ap->device[i];
struct scsi_device *sdev = dev->sdev;
if (!ata_dev_enabled(dev) || !sdev)
continue;
if (scsi_device_get(sdev))
continue;
spin_unlock_irqrestore(ap->lock, flags);
scsi_rescan_device(&(sdev->sdev_gendev));
scsi_device_put(sdev);
spin_lock_irqsave(ap->lock, flags);
}
spin_unlock_irqrestore(ap->lock, flags);
}
/**