#include <linux/blkdev.h>
#include <linux/spinlock.h>
#include <scsi/scsi.h>
-#include "scsi.h"
#include <scsi/scsi_host.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_request.h>
#include <linux/libata.h>
#include <linux/hdreg.h>
#include <asm/uaccess.h>
/**
* ata_cmd_ioctl - Handler for HDIO_DRIVE_CMD ioctl
- * @dev: Device to whom we are issuing command
+ * @scsidev: Device to which we are issuing command
* @arg: User provided data for issuing command
*
* LOCKING:
u8 scsi_cmd[MAX_COMMAND_SIZE];
u8 args[4], *argbuf = NULL;
int argsize = 0;
- struct scsi_request *sreq;
+ struct scsi_sense_hdr sshdr;
+ enum dma_data_direction data_dir;
if (NULL == (void *)arg)
return -EINVAL;
if (copy_from_user(args, arg, sizeof(args)))
return -EFAULT;
- sreq = scsi_allocate_request(scsidev, GFP_KERNEL);
- if (!sreq)
- return -EINTR;
-
memset(scsi_cmd, 0, sizeof(scsi_cmd));
if (args[3]) {
scsi_cmd[1] = (4 << 1); /* PIO Data-in */
scsi_cmd[2] = 0x0e; /* no off.line or cc, read from dev,
block count in sector count field */
- sreq->sr_data_direction = DMA_FROM_DEVICE;
+ data_dir = DMA_FROM_DEVICE;
} else {
scsi_cmd[1] = (3 << 1); /* Non-data */
/* scsi_cmd[2] is already 0 -- no off.line, cc, or data xfer */
- sreq->sr_data_direction = DMA_NONE;
+ data_dir = DMA_NONE;
}
scsi_cmd[0] = ATA_16;
/* Good values for timeout and retries? Values below
from scsi_ioctl_send_command() for default case... */
- scsi_wait_req(sreq, scsi_cmd, argbuf, argsize, (10*HZ), 5);
-
- if (sreq->sr_result) {
+ if (scsi_execute_req(scsidev, scsi_cmd, data_dir, argbuf, argsize,
+ &sshdr, (10*HZ), 5)) {
rc = -EIO;
goto error;
}
&& copy_to_user((void *)(arg + sizeof(args)), argbuf, argsize))
rc = -EFAULT;
error:
- scsi_release_request(sreq);
-
if (argbuf)
kfree(argbuf);
/**
* ata_task_ioctl - Handler for HDIO_DRIVE_TASK ioctl
- * @dev: Device to whom we are issuing command
+ * @scsidev: Device to which we are issuing command
* @arg: User provided data for issuing command
*
* LOCKING:
int rc = 0;
u8 scsi_cmd[MAX_COMMAND_SIZE];
u8 args[7];
- struct scsi_request *sreq;
+ struct scsi_sense_hdr sshdr;
if (NULL == (void *)arg)
return -EINVAL;
scsi_cmd[12] = args[5];
scsi_cmd[14] = args[0];
- sreq = scsi_allocate_request(scsidev, GFP_KERNEL);
- if (!sreq) {
- rc = -EINTR;
- goto error;
- }
-
- sreq->sr_data_direction = DMA_NONE;
/* Good values for timeout and retries? Values below
- from scsi_ioctl_send_command() for default case... */
- scsi_wait_req(sreq, scsi_cmd, NULL, 0, (10*HZ), 5);
-
- if (sreq->sr_result) {
+ from scsi_ioctl_send_command() for default case... */
+ if (scsi_execute_req(scsidev, scsi_cmd, DMA_NONE, NULL, 0, &sshdr,
+ (10*HZ), 5))
rc = -EIO;
- goto error;
- }
/* Need code to retrieve data from check condition? */
-
-error:
- scsi_release_request(sreq);
return rc;
}
/**
* ata_to_sense_error - convert ATA error to SCSI error
+ * @id: ATA device number
* @drv_stat: value contained in ATA status register
* @drv_err: value contained in ATA error register
* @sk: the sense key we'll fill out
if (dev->flags & ATA_DFLAG_LBA) {
tf->flags |= ATA_TFLAG_LBA;
- if (dev->flags & ATA_DFLAG_LBA48) {
- if (n_block > (64 * 1024))
- goto invalid_fld;
+ if (lba_28_ok(block, n_block)) {
+ /* use LBA28 */
+ tf->command = ATA_CMD_VERIFY;
+ 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_lbah = (block >> 40) & 0xff;
tf->hob_lbam = (block >> 32) & 0xff;
tf->hob_lbal = (block >> 24) & 0xff;
- } else {
- if (n_block > 256)
- goto invalid_fld;
-
- /* use LBA28 */
- tf->command = ATA_CMD_VERIFY;
-
- tf->device |= (block >> 24) & 0xf;
- }
+ } else
+ /* request too large even for LBA48 */
+ goto out_of_range;
tf->nsect = n_block & 0xff;
/* CHS */
u32 sect, head, cyl, track;
- if (n_block > 256)
- goto invalid_fld;
+ if (!lba_28_ok(block, n_block))
+ goto out_of_range;
/* Convert LBA to CHS */
track = (u32)block / dev->sectors;
* length 0 means transfer 0 block of data.
* However, for ATA R/W commands, sector count 0 means
* 256 or 65536 sectors, not 0 sectors as in SCSI.
+ *
+ * WARNING: one or two older ATA drives treat 0 as 0...
*/
goto nothing_to_do;
if (dev->flags & ATA_DFLAG_LBA) {
tf->flags |= ATA_TFLAG_LBA;
- if (dev->flags & ATA_DFLAG_LBA48) {
- /* The request -may- be too large for LBA48. */
- if ((block >> 48) || (n_block > 65536))
+ 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->hob_lbah = (block >> 40) & 0xff;
tf->hob_lbam = (block >> 32) & 0xff;
tf->hob_lbal = (block >> 24) & 0xff;
- } else {
- /* use LBA28 */
-
- /* The request -may- be too large for LBA28. */
- if ((block >> 28) || (n_block > 256))
- goto out_of_range;
-
- tf->device |= (block >> 24) & 0xf;
- }
+ } else
+ /* request too large even for LBA48 */
+ goto out_of_range;
ata_rwcmd_protocol(qc);
u32 sect, head, cyl, track;
/* The request -may- be too large for CHS addressing. */
- if ((block >> 28) || (n_block > 256))
+ if (!lba_28_ok(block, n_block))
goto out_of_range;
ata_rwcmd_protocol(qc);
done(cmd);
}
-void atapi_request_sense(struct ata_port *ap, struct ata_device *dev,
- struct scsi_cmnd *cmd)
+static int atapi_sense_complete(struct ata_queued_cmd *qc,unsigned int err_mask)
{
- DECLARE_COMPLETION(wait);
- struct ata_queued_cmd *qc;
- unsigned long flags;
- int rc;
+ if (err_mask && ((err_mask & AC_ERR_DEV) == 0))
+ /* FIXME: not quite right; we don't want the
+ * translation of taskfile registers into
+ * a sense descriptors, since that's only
+ * correct for ATA, not ATAPI
+ */
+ ata_gen_ata_desc_sense(qc);
- DPRINTK("ATAPI request sense\n");
+ qc->scsidone(qc->scsicmd);
+ return 0;
+}
- qc = ata_qc_new_init(ap, dev);
- BUG_ON(qc == NULL);
+/* is it pointless to prefer PIO for "safety reasons"? */
+static inline int ata_pio_use_silly(struct ata_port *ap)
+{
+ return (ap->flags & ATA_FLAG_PIO_DMA);
+}
+
+static void atapi_request_sense(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct scsi_cmnd *cmd = qc->scsicmd;
+
+ DPRINTK("ATAPI request sense\n");
/* FIXME: is this needed? */
memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+ ap->ops->tf_read(ap, &qc->tf);
+
+ /* fill these in, for the case where they are -not- overwritten */
+ cmd->sense_buffer[0] = 0x70;
+ cmd->sense_buffer[2] = qc->tf.feature >> 4;
+
+ ata_qc_reinit(qc);
+
ata_sg_init_one(qc, cmd->sense_buffer, sizeof(cmd->sense_buffer));
qc->dma_dir = DMA_FROM_DEVICE;
qc->tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
qc->tf.command = ATA_CMD_PACKET;
- qc->tf.protocol = ATA_PROT_ATAPI;
- qc->tf.lbam = (8 * 1024) & 0xff;
- qc->tf.lbah = (8 * 1024) >> 8;
+ if (ata_pio_use_silly(ap)) {
+ qc->tf.protocol = ATA_PROT_ATAPI_DMA;
+ qc->tf.feature |= ATAPI_PKT_DMA;
+ } else {
+ qc->tf.protocol = ATA_PROT_ATAPI;
+ qc->tf.lbam = (8 * 1024) & 0xff;
+ qc->tf.lbah = (8 * 1024) >> 8;
+ }
qc->nbytes = SCSI_SENSE_BUFFERSIZE;
- qc->waiting = &wait;
- qc->complete_fn = ata_qc_complete_noop;
+ qc->complete_fn = atapi_sense_complete;
- spin_lock_irqsave(&ap->host_set->lock, flags);
- rc = ata_qc_issue(qc);
- spin_unlock_irqrestore(&ap->host_set->lock, flags);
-
- if (rc)
- ata_port_disable(ap);
- else
- wait_for_completion(&wait);
+ if (ata_qc_issue(qc))
+ ata_qc_complete(qc, AC_ERR_OTHER);
DPRINTK("EXIT\n");
}
VPRINTK("ENTER, err_mask 0x%X\n", err_mask);
if (unlikely(err_mask & AC_ERR_DEV)) {
- DPRINTK("request check condition\n");
-
- /* FIXME: command completion with check condition
- * but no sense causes the error handler to run,
- * which then issues REQUEST SENSE, fills in the sense
- * buffer, and completes the command (for the second
- * time). We need to issue REQUEST SENSE some other
- * way, to avoid completing the command twice.
- */
cmd->result = SAM_STAT_CHECK_CONDITION;
-
- qc->scsidone(cmd);
-
+ atapi_request_sense(qc);
return 1;
}
/**
* ata_scsi_pass_thru - convert ATA pass-thru CDB to taskfile
* @qc: command structure to be initialized
- * @cmd: SCSI command to convert
+ * @scsicmd: SCSI command to convert
*
* Handles either 12 or 16-byte versions of the CDB.
*
tf->device = scsicmd[8];
tf->command = scsicmd[9];
}
+ /*
+ * If slave is possible, enforce correct master/slave bit
+ */
+ if (qc->ap->flags & ATA_FLAG_SLAVE_POSS)
+ tf->device = qc->dev->devno ?
+ tf->device | ATA_DEV1 : tf->device & ~ATA_DEV1;
/*
* Filter SET_FEATURES - XFER MODE command -- otherwise,
struct ata_port *ap;
struct ata_device *dev;
struct scsi_device *scsidev = cmd->device;
+ struct Scsi_Host *shost = scsidev->host;
- ap = (struct ata_port *) &scsidev->host->hostdata[0];
+ ap = (struct ata_port *) &shost->hostdata[0];
+
+ spin_unlock(shost->host_lock);
+ spin_lock(&ap->host_set->lock);
ata_scsi_dump_cdb(ap, cmd);
ata_scsi_translate(ap, dev, cmd, done, atapi_xlat);
out_unlock:
+ spin_unlock(&ap->host_set->lock);
+ spin_lock(shost->host_lock);
return 0;
}
git.openpandora.org / pandora-kernel.git / blobdiff