*
*/
+#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/blkdev.h>
#include <linux/spinlock.h>
#include <linux/libata.h>
#include <linux/hdreg.h>
#include <linux/uaccess.h>
+#include <linux/suspend.h>
+#include <asm/unaligned.h>
#include "libata.h"
-#define SECTOR_SIZE 512
+#define SECTOR_SIZE 512
+#define ATA_SCSI_RBUF_SIZE 4096
+
+static DEFINE_SPINLOCK(ata_scsi_rbuf_lock);
+static u8 ata_scsi_rbuf[ATA_SCSI_RBUF_SIZE];
typedef unsigned int (*ata_xlat_func_t)(struct ata_queued_cmd *qc);
return NULL;
}
-static ssize_t ata_scsi_lpm_put(struct class_device *class_dev,
- const char *buf, size_t count)
+static ssize_t ata_scsi_lpm_put(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
- struct Scsi_Host *shost = class_to_shost(class_dev);
+ struct Scsi_Host *shost = class_to_shost(dev);
struct ata_port *ap = ata_shost_to_port(shost);
enum link_pm policy = 0;
int i;
*/
for (i = 1; i < ARRAY_SIZE(link_pm_policy); i++) {
const int len = strlen(link_pm_policy[i].name);
- if (strncmp(link_pm_policy[i].name, buf, len) == 0 &&
- buf[len] == '\n') {
+ if (strncmp(link_pm_policy[i].name, buf, len) == 0) {
policy = link_pm_policy[i].value;
break;
}
}
static ssize_t
-ata_scsi_lpm_show(struct class_device *class_dev, char *buf)
+ata_scsi_lpm_show(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct Scsi_Host *shost = class_to_shost(class_dev);
+ struct Scsi_Host *shost = class_to_shost(dev);
struct ata_port *ap = ata_shost_to_port(shost);
const char *policy =
ata_scsi_lpm_get(ap->pm_policy);
return snprintf(buf, 23, "%s\n", policy);
}
-CLASS_DEVICE_ATTR(link_power_management_policy, S_IRUGO | S_IWUSR,
+DEVICE_ATTR(link_power_management_policy, S_IRUGO | S_IWUSR,
ata_scsi_lpm_show, ata_scsi_lpm_put);
-EXPORT_SYMBOL_GPL(class_device_attr_link_power_management_policy);
+EXPORT_SYMBOL_GPL(dev_attr_link_power_management_policy);
+
+static ssize_t ata_scsi_park_show(struct device *device,
+ struct device_attribute *attr, char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(device);
+ struct ata_port *ap;
+ struct ata_link *link;
+ struct ata_device *dev;
+ unsigned long flags, now;
+ unsigned int uninitialized_var(msecs);
+ int rc = 0;
+
+ ap = ata_shost_to_port(sdev->host);
+
+ spin_lock_irqsave(ap->lock, flags);
+ dev = ata_scsi_find_dev(ap, sdev);
+ if (!dev) {
+ rc = -ENODEV;
+ goto unlock;
+ }
+ if (dev->flags & ATA_DFLAG_NO_UNLOAD) {
+ rc = -EOPNOTSUPP;
+ goto unlock;
+ }
+
+ link = dev->link;
+ now = jiffies;
+ if (ap->pflags & ATA_PFLAG_EH_IN_PROGRESS &&
+ link->eh_context.unloaded_mask & (1 << dev->devno) &&
+ time_after(dev->unpark_deadline, now))
+ msecs = jiffies_to_msecs(dev->unpark_deadline - now);
+ else
+ msecs = 0;
+
+unlock:
+ spin_unlock_irq(ap->lock);
+
+ return rc ? rc : snprintf(buf, 20, "%u\n", msecs);
+}
+
+static ssize_t ata_scsi_park_store(struct device *device,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct scsi_device *sdev = to_scsi_device(device);
+ struct ata_port *ap;
+ struct ata_device *dev;
+ long int input;
+ unsigned long flags;
+ int rc;
+
+ rc = strict_strtol(buf, 10, &input);
+ if (rc || input < -2)
+ return -EINVAL;
+ if (input > ATA_TMOUT_MAX_PARK) {
+ rc = -EOVERFLOW;
+ input = ATA_TMOUT_MAX_PARK;
+ }
+
+ ap = ata_shost_to_port(sdev->host);
+
+ spin_lock_irqsave(ap->lock, flags);
+ dev = ata_scsi_find_dev(ap, sdev);
+ if (unlikely(!dev)) {
+ rc = -ENODEV;
+ goto unlock;
+ }
+ if (dev->class != ATA_DEV_ATA) {
+ rc = -EOPNOTSUPP;
+ goto unlock;
+ }
+
+ if (input >= 0) {
+ if (dev->flags & ATA_DFLAG_NO_UNLOAD) {
+ rc = -EOPNOTSUPP;
+ goto unlock;
+ }
+
+ dev->unpark_deadline = ata_deadline(jiffies, input);
+ dev->link->eh_info.dev_action[dev->devno] |= ATA_EH_PARK;
+ ata_port_schedule_eh(ap);
+ complete(&ap->park_req_pending);
+ } else {
+ switch (input) {
+ case -1:
+ dev->flags &= ~ATA_DFLAG_NO_UNLOAD;
+ break;
+ case -2:
+ dev->flags |= ATA_DFLAG_NO_UNLOAD;
+ break;
+ }
+ }
+unlock:
+ spin_unlock_irqrestore(ap->lock, flags);
+
+ return rc ? rc : len;
+}
+DEVICE_ATTR(unload_heads, S_IRUGO | S_IWUSR,
+ ata_scsi_park_show, ata_scsi_park_store);
+EXPORT_SYMBOL_GPL(dev_attr_unload_heads);
+
+static void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq)
+{
+ cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
+
+ scsi_build_sense_buffer(0, cmd->sense_buffer, sk, asc, ascq);
+}
+
+static ssize_t
+ata_scsi_em_message_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct ata_port *ap = ata_shost_to_port(shost);
+ if (ap->ops->em_store && (ap->flags & ATA_FLAG_EM))
+ return ap->ops->em_store(ap, buf, count);
+ return -EINVAL;
+}
+
+static ssize_t
+ata_scsi_em_message_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct ata_port *ap = ata_shost_to_port(shost);
+
+ if (ap->ops->em_show && (ap->flags & ATA_FLAG_EM))
+ return ap->ops->em_show(ap, buf);
+ return -EINVAL;
+}
+DEVICE_ATTR(em_message, S_IRUGO | S_IWUSR,
+ ata_scsi_em_message_show, ata_scsi_em_message_store);
+EXPORT_SYMBOL_GPL(dev_attr_em_message);
+
+static ssize_t
+ata_scsi_em_message_type_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct ata_port *ap = ata_shost_to_port(shost);
+
+ return snprintf(buf, 23, "%d\n", ap->em_message_type);
+}
+DEVICE_ATTR(em_message_type, S_IRUGO,
+ ata_scsi_em_message_type_show, NULL);
+EXPORT_SYMBOL_GPL(dev_attr_em_message_type);
+
+static ssize_t
+ata_scsi_activity_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ struct ata_port *ap = ata_shost_to_port(sdev->host);
+ struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);
+
+ if (ap->ops->sw_activity_show && (ap->flags & ATA_FLAG_SW_ACTIVITY))
+ return ap->ops->sw_activity_show(atadev, buf);
+ return -EINVAL;
+}
+
+static ssize_t
+ata_scsi_activity_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ struct ata_port *ap = ata_shost_to_port(sdev->host);
+ struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);
+ enum sw_activity val;
+ int rc;
+
+ if (ap->ops->sw_activity_store && (ap->flags & ATA_FLAG_SW_ACTIVITY)) {
+ val = simple_strtoul(buf, NULL, 0);
+ switch (val) {
+ case OFF: case BLINK_ON: case BLINK_OFF:
+ rc = ap->ops->sw_activity_store(atadev, val);
+ if (!rc)
+ return count;
+ else
+ return rc;
+ }
+ }
+ return -EINVAL;
+}
+DEVICE_ATTR(sw_activity, S_IWUSR | S_IRUGO, ata_scsi_activity_show,
+ ata_scsi_activity_store);
+EXPORT_SYMBOL_GPL(dev_attr_sw_activity);
+
+struct device_attribute *ata_common_sdev_attrs[] = {
+ &dev_attr_unload_heads,
+ NULL
+};
+EXPORT_SYMBOL_GPL(ata_common_sdev_attrs);
static void ata_scsi_invalid_field(struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *))
/**
* ata_get_identity - Handler for HDIO_GET_IDENTITY ioctl
+ * @ap: target port
* @sdev: SCSI device to get identify data for
* @arg: User buffer area for identify data
*
* RETURNS:
* Zero on success, negative errno on error.
*/
-static int ata_get_identity(struct scsi_device *sdev, void __user *arg)
+static int ata_get_identity(struct ata_port *ap, struct scsi_device *sdev,
+ void __user *arg)
{
- struct ata_port *ap = ata_shost_to_port(sdev->host);
struct ata_device *dev = ata_scsi_find_dev(ap, sdev);
u16 __user *dst = arg;
char buf[40];
scsi_cmd[0] = ATA_16;
scsi_cmd[4] = args[2];
- if (args[0] == WIN_SMART) { /* hack -- ide driver does this too... */
+ if (args[0] == ATA_CMD_SMART) { /* hack -- ide driver does this too */
scsi_cmd[6] = args[3];
scsi_cmd[8] = args[1];
scsi_cmd[10] = 0x4f;
/* Good values for timeout and retries? Values below
from scsi_ioctl_send_command() for default case... */
cmd_result = scsi_execute(scsidev, scsi_cmd, data_dir, argbuf, argsize,
- sensebuf, (10*HZ), 5, 0);
+ sensebuf, (10*HZ), 5, 0, NULL);
if (driver_byte(cmd_result) == DRIVER_SENSE) {/* sense data available */
u8 *desc = sensebuf + 8;
/* Good values for timeout and retries? Values below
from scsi_ioctl_send_command() for default case... */
cmd_result = scsi_execute(scsidev, scsi_cmd, DMA_NONE, NULL, 0,
- sensebuf, (10*HZ), 5, 0);
+ sensebuf, (10*HZ), 5, 0, NULL);
if (driver_byte(cmd_result) == DRIVER_SENSE) {/* sense data available */
u8 *desc = sensebuf + 8;
return rc;
}
-int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg)
+static int ata_ioc32(struct ata_port *ap)
+{
+ if (ap->flags & ATA_FLAG_PIO_DMA)
+ return 1;
+ if (ap->pflags & ATA_PFLAG_PIO32)
+ return 1;
+ return 0;
+}
+
+int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev,
+ int cmd, void __user *arg)
{
int val = -EINVAL, rc = -EINVAL;
+ unsigned long flags;
switch (cmd) {
case ATA_IOC_GET_IO32:
- val = 0;
+ spin_lock_irqsave(ap->lock, flags);
+ val = ata_ioc32(ap);
+ spin_unlock_irqrestore(ap->lock, flags);
if (copy_to_user(arg, &val, 1))
return -EFAULT;
return 0;
case ATA_IOC_SET_IO32:
val = (unsigned long) arg;
- if (val != 0)
- return -EINVAL;
- return 0;
+ rc = 0;
+ spin_lock_irqsave(ap->lock, flags);
+ if (ap->pflags & ATA_PFLAG_PIO32CHANGE) {
+ if (val)
+ ap->pflags |= ATA_PFLAG_PIO32;
+ else
+ ap->pflags &= ~ATA_PFLAG_PIO32;
+ } else {
+ if (val != ata_ioc32(ap))
+ rc = -EINVAL;
+ }
+ spin_unlock_irqrestore(ap->lock, flags);
+ return rc;
case HDIO_GET_IDENTITY:
- return ata_get_identity(scsidev, arg);
+ return ata_get_identity(ap, scsidev, arg);
case HDIO_DRIVE_CMD:
if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
return rc;
}
+EXPORT_SYMBOL_GPL(ata_sas_scsi_ioctl);
+
+int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg)
+{
+ return ata_sas_scsi_ioctl(ata_shost_to_port(scsidev->host),
+ scsidev, cmd, arg);
+}
+EXPORT_SYMBOL_GPL(ata_scsi_ioctl);
/**
* ata_scsi_qc_new - acquire new ata_queued_cmd reference
qc->scsicmd = cmd;
qc->scsidone = done;
- qc->__sg = scsi_sglist(cmd);
+ qc->sg = scsi_sglist(cmd);
qc->n_elem = scsi_sg_count(cmd);
} else {
cmd->result = (DID_OK << 16) | (QUEUE_FULL << 1);
return qc;
}
+static void ata_qc_set_pc_nbytes(struct ata_queued_cmd *qc)
+{
+ struct scsi_cmnd *scmd = qc->scsicmd;
+
+ qc->extrabytes = scmd->request->extra_len;
+ qc->nbytes = scsi_bufflen(scmd) + qc->extrabytes;
+}
+
/**
* ata_dump_status - user friendly display of error info
* @id: id of the port in question
sdev->max_device_blocked = 1;
}
-static void ata_scsi_dev_config(struct scsi_device *sdev,
- struct ata_device *dev)
+/**
+ * atapi_drain_needed - Check whether data transfer may overflow
+ * @rq: request to be checked
+ *
+ * ATAPI commands which transfer variable length data to host
+ * might overflow due to application error or hardare bug. This
+ * function checks whether overflow should be drained and ignored
+ * for @request.
+ *
+ * LOCKING:
+ * None.
+ *
+ * RETURNS:
+ * 1 if ; otherwise, 0.
+ */
+static int atapi_drain_needed(struct request *rq)
{
+ if (likely(!blk_pc_request(rq)))
+ return 0;
+
+ if (!blk_rq_bytes(rq) || (rq->cmd_flags & REQ_RW))
+ return 0;
+
+ return atapi_cmd_type(rq->cmd[0]) == ATAPI_MISC;
+}
+
+static int ata_scsi_dev_config(struct scsi_device *sdev,
+ struct ata_device *dev)
+{
+ if (!ata_id_has_unload(dev->id))
+ dev->flags |= ATA_DFLAG_NO_UNLOAD;
+
/* configure max sectors */
- blk_queue_max_sectors(sdev->request_queue, dev->max_sectors);
+ blk_queue_max_hw_sectors(sdev->request_queue, dev->max_sectors);
- /* 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.
- */
if (dev->class == ATA_DEV_ATAPI) {
struct request_queue *q = sdev->request_queue;
- blk_queue_max_hw_segments(q, q->max_hw_segments - 1);
- }
+ void *buf;
+
+ /* set the min alignment and padding */
+ blk_queue_update_dma_alignment(sdev->request_queue,
+ ATA_DMA_PAD_SZ - 1);
+ blk_queue_update_dma_pad(sdev->request_queue,
+ ATA_DMA_PAD_SZ - 1);
+
+ /* configure draining */
+ buf = kmalloc(ATAPI_MAX_DRAIN, q->bounce_gfp | GFP_KERNEL);
+ if (!buf) {
+ ata_dev_printk(dev, KERN_ERR,
+ "drain buffer allocation failed\n");
+ return -ENOMEM;
+ }
- if (dev->class == ATA_DEV_ATA)
+ blk_queue_dma_drain(q, atapi_drain_needed, buf, ATAPI_MAX_DRAIN);
+ } else {
+ /* ATA devices must be sector aligned */
+ blk_queue_update_dma_alignment(sdev->request_queue,
+ ATA_SECT_SIZE - 1);
sdev->manage_start_stop = 1;
+ }
if (dev->flags & ATA_DFLAG_AN)
set_bit(SDEV_EVT_MEDIA_CHANGE, sdev->supported_events);
depth = min(ATA_MAX_QUEUE - 1, depth);
scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, depth);
}
+
+ return 0;
}
/**
{
struct ata_port *ap = ata_shost_to_port(sdev->host);
struct ata_device *dev = __ata_scsi_find_dev(ap, sdev);
+ int rc = 0;
ata_scsi_sdev_config(sdev);
if (dev)
- ata_scsi_dev_config(sdev, dev);
+ rc = ata_scsi_dev_config(sdev, dev);
- return 0; /* scsi layer doesn't check return value, sigh */
+ return rc;
}
/**
void ata_scsi_slave_destroy(struct scsi_device *sdev)
{
struct ata_port *ap = ata_shost_to_port(sdev->host);
+ struct request_queue *q = sdev->request_queue;
unsigned long flags;
struct ata_device *dev;
ata_port_schedule_eh(ap);
}
spin_unlock_irqrestore(ap->lock, flags);
+
+ kfree(q->dma_drain_buffer);
+ q->dma_drain_buffer = NULL;
+ q->dma_drain_size = 0;
}
/**
* ata_scsi_change_queue_depth - SCSI callback for queue depth config
* @sdev: SCSI device to configure queue depth for
* @queue_depth: new queue depth
+ * @reason: calling context
*
* This is libata standard hostt->change_queue_depth callback.
* SCSI will call into this callback when user tries to set queue
* RETURNS:
* Newly configured queue depth.
*/
-int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth)
+int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth,
+ int reason)
{
struct ata_port *ap = ata_shost_to_port(sdev->host);
struct ata_device *dev;
unsigned long flags;
+ if (reason != SCSI_QDEPTH_DEFAULT)
+ return -EOPNOTSUPP;
+
if (queue_depth < 1 || queue_depth == sdev->queue_depth)
return sdev->queue_depth;
return queue_depth;
}
-/* XXX: for spindown warning */
-static void ata_delayed_done_timerfn(unsigned long arg)
-{
- struct scsi_cmnd *scmd = (void *)arg;
-
- scmd->scsi_done(scmd);
-}
-
-/* XXX: for spindown warning */
-static void ata_delayed_done(struct scsi_cmnd *scmd)
-{
- static struct timer_list timer;
-
- setup_timer(&timer, ata_delayed_done_timerfn, (unsigned long)scmd);
- mod_timer(&timer, jiffies + 5 * HZ);
-}
-
/**
* ata_scsi_start_stop_xlat - Translate SCSI START STOP UNIT command
* @qc: Storage for translated ATA taskfile
if (((cdb[4] >> 4) & 0xf) != 0)
goto invalid_fld; /* power conditions not supported */
- if (qc->dev->horkage & ATA_HORKAGE_SKIP_PM) {
- /* the device lacks PM support, finish without doing anything */
- scmd->result = SAM_STAT_GOOD;
- return 1;
- }
-
if (cdb[4] & 0x1) {
tf->nsect = 1; /* 1 sector, lba=0 */
tf->command = ATA_CMD_VERIFY; /* READ VERIFY */
} else {
- /* XXX: This is for backward compatibility, will be
- * removed. Read Documentation/feature-removal-schedule.txt
- * for more info.
+ /* Some odd clown BIOSen issue spindown on power off (ACPI S4
+ * or S5) causing some drives to spin up and down again.
*/
- if ((qc->dev->flags & ATA_DFLAG_SPUNDOWN) &&
- (system_state == SYSTEM_HALT ||
- system_state == SYSTEM_POWER_OFF)) {
- static unsigned long warned;
-
- if (!test_and_set_bit(0, &warned)) {
- ata_dev_printk(qc->dev, KERN_WARNING,
- "DISK MIGHT NOT BE SPUN DOWN PROPERLY. "
- "UPDATE SHUTDOWN UTILITY\n");
- ata_dev_printk(qc->dev, KERN_WARNING,
- "For more info, visit "
- "http://linux-ata.org/shutdown.html\n");
-
- /* ->scsi_done is not used, use it for
- * delayed completion.
- */
- scmd->scsi_done = qc->scsidone;
- qc->scsidone = ata_delayed_done;
- }
- scmd->result = SAM_STAT_GOOD;
- return 1;
- }
+ if ((qc->ap->flags & ATA_FLAG_NO_POWEROFF_SPINDOWN) &&
+ system_state == SYSTEM_POWER_OFF)
+ goto skip;
+
+ if ((qc->ap->flags & ATA_FLAG_NO_HIBERNATE_SPINDOWN) &&
+ system_entering_hibernation())
+ goto skip;
/* Issue ATA STANDBY IMMEDIATE command */
tf->command = ATA_CMD_STANDBYNOW1;
return 0;
-invalid_fld:
+ invalid_fld:
ata_scsi_set_sense(scmd, ILLEGAL_REQUEST, 0x24, 0x0);
/* "Invalid field in cbd" */
return 1;
+ skip:
+ scmd->result = SAM_STAT_GOOD;
+ return 1;
}
}
}
- /* XXX: track spindown state for spindown skipping and warning */
- if (unlikely(qc->tf.command == ATA_CMD_STANDBY ||
- qc->tf.command == ATA_CMD_STANDBYNOW1))
- qc->dev->flags |= ATA_DFLAG_SPUNDOWN;
- else if (likely(system_state != SYSTEM_HALT &&
- system_state != SYSTEM_POWER_OFF))
- qc->dev->flags &= ~ATA_DFLAG_SPUNDOWN;
-
if (need_sense && !ap->ops->error_handler)
ata_dump_status(ap->print_id, &qc->result_tf);
/**
* ata_scsi_rbuf_get - Map response buffer.
* @cmd: SCSI command containing buffer to be mapped.
- * @buf_out: Pointer to mapped area.
+ * @flags: unsigned long variable to store irq enable status
+ * @copy_in: copy in from user buffer
*
- * Maps buffer contained within SCSI command @cmd.
+ * Prepare buffer for simulated SCSI commands.
*
* LOCKING:
- * spin_lock_irqsave(host lock)
+ * spin_lock_irqsave(ata_scsi_rbuf_lock) on success
*
* RETURNS:
- * Length of response buffer.
+ * Pointer to response buffer.
*/
-
-static unsigned int ata_scsi_rbuf_get(struct scsi_cmnd *cmd, u8 **buf_out)
+static void *ata_scsi_rbuf_get(struct scsi_cmnd *cmd, bool copy_in,
+ unsigned long *flags)
{
- u8 *buf;
- unsigned int buflen;
-
- struct scatterlist *sg = scsi_sglist(cmd);
+ spin_lock_irqsave(&ata_scsi_rbuf_lock, *flags);
- if (sg) {
- buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
- buflen = sg->length;
- } else {
- buf = NULL;
- buflen = 0;
- }
-
- *buf_out = buf;
- return buflen;
+ memset(ata_scsi_rbuf, 0, ATA_SCSI_RBUF_SIZE);
+ if (copy_in)
+ sg_copy_to_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),
+ ata_scsi_rbuf, ATA_SCSI_RBUF_SIZE);
+ return ata_scsi_rbuf;
}
/**
* ata_scsi_rbuf_put - Unmap response buffer.
* @cmd: SCSI command containing buffer to be unmapped.
- * @buf: buffer to unmap
+ * @copy_out: copy out result
+ * @flags: @flags passed to ata_scsi_rbuf_get()
*
- * Unmaps response buffer contained within @cmd.
+ * Returns rbuf buffer. The result is copied to @cmd's buffer if
+ * @copy_back is true.
*
* LOCKING:
- * spin_lock_irqsave(host lock)
+ * Unlocks ata_scsi_rbuf_lock.
*/
-
-static inline void ata_scsi_rbuf_put(struct scsi_cmnd *cmd, u8 *buf)
+static inline void ata_scsi_rbuf_put(struct scsi_cmnd *cmd, bool copy_out,
+ unsigned long *flags)
{
- struct scatterlist *sg = scsi_sglist(cmd);
- if (sg)
- kunmap_atomic(buf - sg->offset, KM_IRQ0);
+ if (copy_out)
+ sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),
+ ata_scsi_rbuf, ATA_SCSI_RBUF_SIZE);
+ spin_unlock_irqrestore(&ata_scsi_rbuf_lock, *flags);
}
/**
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
-void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
- unsigned int (*actor) (struct ata_scsi_args *args,
- u8 *rbuf, unsigned int buflen))
+static void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
+ unsigned int (*actor)(struct ata_scsi_args *args, u8 *rbuf))
{
u8 *rbuf;
- unsigned int buflen, rc;
+ unsigned int rc;
struct scsi_cmnd *cmd = args->cmd;
+ unsigned long flags;
- buflen = ata_scsi_rbuf_get(cmd, &rbuf);
- memset(rbuf, 0, buflen);
- rc = actor(args, rbuf, buflen);
- ata_scsi_rbuf_put(cmd, rbuf);
+ rbuf = ata_scsi_rbuf_get(cmd, false, &flags);
+ rc = actor(args, rbuf);
+ ata_scsi_rbuf_put(cmd, rc == 0, &flags);
if (rc == 0)
cmd->result = SAM_STAT_GOOD;
}
/**
- * 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.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
- * @buflen: Response buffer length.
*
* Returns standard device identification data associated
* with non-VPD INQUIRY command output.
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
-unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf,
- unsigned int buflen)
+static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
{
+ const u8 versions[] = {
+ 0x60, /* SAM-3 (no version claimed) */
+
+ 0x03,
+ 0x20, /* SBC-2 (no version claimed) */
+
+ 0x02,
+ 0x60 /* SPC-3 (no version claimed) */
+ };
u8 hdr[] = {
TYPE_DISK,
0,
95 - 4
};
+ VPRINTK("ENTER\n");
+
/* set scsi removeable (RMB) bit per ata bit */
if (ata_id_removeable(args->id))
hdr[1] |= (1 << 7);
- VPRINTK("ENTER\n");
-
memcpy(rbuf, hdr, sizeof(hdr));
+ memcpy(&rbuf[8], "ATA ", 8);
+ ata_id_string(args->id, &rbuf[16], ATA_ID_PROD, 16);
+ ata_id_string(args->id, &rbuf[32], ATA_ID_FW_REV, 4);
- if (buflen > 35) {
- memcpy(&rbuf[8], "ATA ", 8);
- ata_id_string(args->id, &rbuf[16], ATA_ID_PROD, 16);
- ata_id_string(args->id, &rbuf[32], ATA_ID_FW_REV, 4);
- if (rbuf[32] == 0 || rbuf[32] == ' ')
- memcpy(&rbuf[32], "n/a ", 4);
- }
-
- if (buflen > 63) {
- const u8 versions[] = {
- 0x60, /* SAM-3 (no version claimed) */
-
- 0x03,
- 0x20, /* SBC-2 (no version claimed) */
+ if (rbuf[32] == 0 || rbuf[32] == ' ')
+ memcpy(&rbuf[32], "n/a ", 4);
- 0x02,
- 0x60 /* SPC-3 (no version claimed) */
- };
-
- memcpy(rbuf + 59, versions, sizeof(versions));
- }
+ memcpy(rbuf + 59, versions, sizeof(versions));
return 0;
}
* ata_scsiop_inq_00 - Simulate INQUIRY VPD page 0, list of pages
* @args: device IDENTIFY data / SCSI command of interest.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
- * @buflen: Response buffer length.
*
* Returns list of inquiry VPD pages available.
*
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
-unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf,
- unsigned int buflen)
+static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf)
{
const u8 pages[] = {
0x00, /* page 0x00, this page */
0x80, /* page 0x80, unit serial no page */
- 0x83 /* page 0x83, device ident page */
+ 0x83, /* page 0x83, device ident page */
+ 0x89, /* page 0x89, ata info page */
+ 0xb0, /* page 0xb0, block limits page */
+ 0xb1, /* page 0xb1, block device characteristics page */
};
- rbuf[3] = sizeof(pages); /* number of supported VPD pages */
-
- if (buflen > 6)
- memcpy(rbuf + 4, pages, sizeof(pages));
+ rbuf[3] = sizeof(pages); /* number of supported VPD pages */
+ memcpy(rbuf + 4, pages, sizeof(pages));
return 0;
}
* ata_scsiop_inq_80 - Simulate INQUIRY VPD page 80, device serial number
* @args: device IDENTIFY data / SCSI command of interest.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
- * @buflen: Response buffer length.
*
* Returns ATA device serial number.
*
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
-unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf,
- unsigned int buflen)
+static unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf)
{
const u8 hdr[] = {
0,
0,
ATA_ID_SERNO_LEN, /* page len */
};
- memcpy(rbuf, hdr, sizeof(hdr));
-
- if (buflen > (ATA_ID_SERNO_LEN + 4 - 1))
- ata_id_string(args->id, (unsigned char *) &rbuf[4],
- ATA_ID_SERNO, ATA_ID_SERNO_LEN);
+ memcpy(rbuf, hdr, sizeof(hdr));
+ ata_id_string(args->id, (unsigned char *) &rbuf[4],
+ ATA_ID_SERNO, ATA_ID_SERNO_LEN);
return 0;
}
* ata_scsiop_inq_83 - Simulate INQUIRY VPD page 83, device identity
* @args: device IDENTIFY data / SCSI command of interest.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
- * @buflen: Response buffer length.
*
* Yields two logical unit device identification designators:
* - vendor specific ASCII containing the ATA serial number
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
-unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
- unsigned int buflen)
+static unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf)
{
- int num;
const int sat_model_serial_desc_len = 68;
+ int num;
rbuf[1] = 0x83; /* this page code */
num = 4;
- if (buflen > (ATA_ID_SERNO_LEN + num + 3)) {
- /* piv=0, assoc=lu, code_set=ACSII, designator=vendor */
- rbuf[num + 0] = 2;
- rbuf[num + 3] = ATA_ID_SERNO_LEN;
- num += 4;
- ata_id_string(args->id, (unsigned char *) rbuf + num,
- ATA_ID_SERNO, ATA_ID_SERNO_LEN);
- num += ATA_ID_SERNO_LEN;
- }
- if (buflen > (sat_model_serial_desc_len + num + 3)) {
- /* SAT defined lu model and serial numbers descriptor */
- /* piv=0, assoc=lu, code_set=ACSII, designator=t10 vendor id */
- rbuf[num + 0] = 2;
- rbuf[num + 1] = 1;
- rbuf[num + 3] = sat_model_serial_desc_len;
- num += 4;
- memcpy(rbuf + num, "ATA ", 8);
- num += 8;
- ata_id_string(args->id, (unsigned char *) rbuf + num,
- ATA_ID_PROD, ATA_ID_PROD_LEN);
- num += ATA_ID_PROD_LEN;
- ata_id_string(args->id, (unsigned char *) rbuf + num,
- ATA_ID_SERNO, ATA_ID_SERNO_LEN);
- num += ATA_ID_SERNO_LEN;
- }
+ /* piv=0, assoc=lu, code_set=ACSII, designator=vendor */
+ rbuf[num + 0] = 2;
+ rbuf[num + 3] = ATA_ID_SERNO_LEN;
+ num += 4;
+ ata_id_string(args->id, (unsigned char *) rbuf + num,
+ ATA_ID_SERNO, ATA_ID_SERNO_LEN);
+ num += ATA_ID_SERNO_LEN;
+
+ /* SAT defined lu model and serial numbers descriptor */
+ /* piv=0, assoc=lu, code_set=ACSII, designator=t10 vendor id */
+ rbuf[num + 0] = 2;
+ rbuf[num + 1] = 1;
+ rbuf[num + 3] = sat_model_serial_desc_len;
+ num += 4;
+ memcpy(rbuf + num, "ATA ", 8);
+ num += 8;
+ ata_id_string(args->id, (unsigned char *) rbuf + num, ATA_ID_PROD,
+ ATA_ID_PROD_LEN);
+ num += ATA_ID_PROD_LEN;
+ ata_id_string(args->id, (unsigned char *) rbuf + num, ATA_ID_SERNO,
+ ATA_ID_SERNO_LEN);
+ num += ATA_ID_SERNO_LEN;
+
rbuf[3] = num - 4; /* page len (assume less than 256 bytes) */
return 0;
}
* ata_scsiop_inq_89 - Simulate INQUIRY VPD page 89, ATA info
* @args: device IDENTIFY data / SCSI command of interest.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
- * @buflen: Response buffer length.
*
* Yields SAT-specified ATA VPD page.
*
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
-unsigned int ata_scsiop_inq_89(struct ata_scsi_args *args, u8 *rbuf,
- unsigned int buflen)
+static unsigned int ata_scsiop_inq_89(struct ata_scsi_args *args, u8 *rbuf)
{
- u8 pbuf[60];
struct ata_taskfile tf;
- unsigned int i;
-
- if (!buflen)
- return 0;
- memset(&pbuf, 0, sizeof(pbuf));
memset(&tf, 0, sizeof(tf));
- pbuf[1] = 0x89; /* our page code */
- pbuf[2] = (0x238 >> 8); /* page size fixed at 238h */
- pbuf[3] = (0x238 & 0xff);
+ rbuf[1] = 0x89; /* our page code */
+ rbuf[2] = (0x238 >> 8); /* page size fixed at 238h */
+ rbuf[3] = (0x238 & 0xff);
- memcpy(&pbuf[8], "linux ", 8);
- memcpy(&pbuf[16], "libata ", 16);
- memcpy(&pbuf[32], DRV_VERSION, 4);
- ata_id_string(args->id, &pbuf[32], ATA_ID_FW_REV, 4);
+ memcpy(&rbuf[8], "linux ", 8);
+ memcpy(&rbuf[16], "libata ", 16);
+ memcpy(&rbuf[32], DRV_VERSION, 4);
+ ata_id_string(args->id, &rbuf[32], ATA_ID_FW_REV, 4);
/* we don't store the ATA device signature, so we fake it */
tf.lbal = 0x1;
tf.nsect = 0x1;
- ata_tf_to_fis(&tf, 0, 1, &pbuf[36]); /* TODO: PMP? */
- pbuf[36] = 0x34; /* force D2H Reg FIS (34h) */
+ ata_tf_to_fis(&tf, 0, 1, &rbuf[36]); /* TODO: PMP? */
+ rbuf[36] = 0x34; /* force D2H Reg FIS (34h) */
- pbuf[56] = ATA_CMD_ID_ATA;
+ rbuf[56] = ATA_CMD_ID_ATA;
- i = min(buflen, 60U);
- memcpy(rbuf, &pbuf[0], i);
- buflen -= i;
+ memcpy(&rbuf[60], &args->id[0], 512);
+ return 0;
+}
- if (!buflen)
- return 0;
+static unsigned int ata_scsiop_inq_b0(struct ata_scsi_args *args, u8 *rbuf)
+{
+ u32 min_io_sectors;
+
+ rbuf[1] = 0xb0;
+ rbuf[3] = 0x3c; /* required VPD size with unmap support */
+
+ /*
+ * Optimal transfer length granularity.
+ *
+ * This is always one physical block, but for disks with a smaller
+ * logical than physical sector size we need to figure out what the
+ * latter is.
+ */
+ if (ata_id_has_large_logical_sectors(args->id))
+ min_io_sectors = ata_id_logical_per_physical_sectors(args->id);
+ else
+ min_io_sectors = 1;
+ put_unaligned_be16(min_io_sectors, &rbuf[6]);
+
+ /*
+ * Optimal unmap granularity.
+ *
+ * The ATA spec doesn't even know about a granularity or alignment
+ * for the TRIM command. We can leave away most of the unmap related
+ * VPD page entries, but we have specifify a granularity to signal
+ * that we support some form of unmap - in thise case via WRITE SAME
+ * with the unmap bit set.
+ */
+ if (ata_id_has_trim(args->id)) {
+ put_unaligned_be32(65535 * 512 / 8, &rbuf[20]);
+ put_unaligned_be32(1, &rbuf[28]);
+ }
+
+ return 0;
+}
+
+static unsigned int ata_scsiop_inq_b1(struct ata_scsi_args *args, u8 *rbuf)
+{
+ int form_factor = ata_id_form_factor(args->id);
+ int media_rotation_rate = ata_id_rotation_rate(args->id);
+
+ rbuf[1] = 0xb1;
+ rbuf[3] = 0x3c;
+ rbuf[4] = media_rotation_rate >> 8;
+ rbuf[5] = media_rotation_rate;
+ rbuf[7] = form_factor;
- memcpy(&rbuf[60], &args->id[0], min(buflen, 512U));
return 0;
}
* ata_scsiop_noop - Command handler that simply returns success.
* @args: device IDENTIFY data / SCSI command of interest.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
- * @buflen: Response buffer length.
*
* No operation. Simply returns success to caller, to indicate
* that the caller should successfully complete this SCSI command.
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
-unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf,
- unsigned int buflen)
+static unsigned int ata_scsiop_noop(struct ata_scsi_args *args, u8 *rbuf)
{
VPRINTK("ENTER\n");
return 0;
}
/**
- * ata_msense_push - Push data onto MODE SENSE data output buffer
- * @ptr_io: (input/output) Location to store more output data
- * @last: End of output data buffer
- * @buf: Pointer to BLOB being added to output buffer
- * @buflen: Length of BLOB
- *
- * Store MODE SENSE data on an output buffer.
- *
- * LOCKING:
- * None.
- */
-
-static void ata_msense_push(u8 **ptr_io, const u8 *last,
- const u8 *buf, unsigned int buflen)
-{
- u8 *ptr = *ptr_io;
-
- if ((ptr + buflen - 1) > last)
- return;
-
- memcpy(ptr, buf, buflen);
-
- ptr += buflen;
-
- *ptr_io = ptr;
-}
-
-/**
* ata_msense_caching - Simulate MODE SENSE caching info page
* @id: device IDENTIFY data
- * @ptr_io: (input/output) Location to store more output data
- * @last: End of output data buffer
+ * @buf: output buffer
*
* Generate a caching info page, which conditionally indicates
* write caching to the SCSI layer, depending on device
* LOCKING:
* None.
*/
-
-static unsigned int ata_msense_caching(u16 *id, u8 **ptr_io,
- const u8 *last)
+static unsigned int ata_msense_caching(u16 *id, u8 *buf)
{
- u8 page[CACHE_MPAGE_LEN];
-
- memcpy(page, def_cache_mpage, sizeof(page));
+ memcpy(buf, def_cache_mpage, sizeof(def_cache_mpage));
if (ata_id_wcache_enabled(id))
- page[2] |= (1 << 2); /* write cache enable */
+ buf[2] |= (1 << 2); /* write cache enable */
if (!ata_id_rahead_enabled(id))
- page[12] |= (1 << 5); /* disable read ahead */
-
- ata_msense_push(ptr_io, last, page, sizeof(page));
- return sizeof(page);
+ buf[12] |= (1 << 5); /* disable read ahead */
+ return sizeof(def_cache_mpage);
}
/**
* ata_msense_ctl_mode - Simulate MODE SENSE control mode page
- * @dev: Device associated with this MODE SENSE command
- * @ptr_io: (input/output) Location to store more output data
- * @last: End of output data buffer
+ * @buf: output buffer
*
* Generate a generic MODE SENSE control mode page.
*
* LOCKING:
* None.
*/
-
-static unsigned int ata_msense_ctl_mode(u8 **ptr_io, const u8 *last)
+static unsigned int ata_msense_ctl_mode(u8 *buf)
{
- ata_msense_push(ptr_io, last, def_control_mpage,
- sizeof(def_control_mpage));
+ memcpy(buf, def_control_mpage, sizeof(def_control_mpage));
return sizeof(def_control_mpage);
}
/**
* ata_msense_rw_recovery - Simulate MODE SENSE r/w error recovery page
- * @dev: Device associated with this MODE SENSE command
- * @ptr_io: (input/output) Location to store more output data
- * @last: End of output data buffer
+ * @buf: output buffer
*
* Generate a generic MODE SENSE r/w error recovery page.
*
* LOCKING:
* None.
*/
-
-static unsigned int ata_msense_rw_recovery(u8 **ptr_io, const u8 *last)
+static unsigned int ata_msense_rw_recovery(u8 *buf)
{
-
- ata_msense_push(ptr_io, last, def_rw_recovery_mpage,
- sizeof(def_rw_recovery_mpage));
+ memcpy(buf, def_rw_recovery_mpage, sizeof(def_rw_recovery_mpage));
return sizeof(def_rw_recovery_mpage);
}
* ata_scsiop_mode_sense - Simulate MODE SENSE 6, 10 commands
* @args: device IDENTIFY data / SCSI command of interest.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
- * @buflen: Response buffer length.
*
* Simulate MODE SENSE commands. Assume this is invoked for direct
* access devices (e.g. disks) only. There should be no block
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
-unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf,
- unsigned int buflen)
+static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
{
struct ata_device *dev = args->dev;
- u8 *scsicmd = args->cmd->cmnd, *p, *last;
+ u8 *scsicmd = args->cmd->cmnd, *p = rbuf;
const u8 sat_blk_desc[] = {
0, 0, 0, 0, /* number of blocks: sat unspecified */
0,
0, 0x2, 0x0 /* block length: 512 bytes */
};
u8 pg, spg;
- unsigned int ebd, page_control, six_byte, output_len, alloc_len, minlen;
+ unsigned int ebd, page_control, six_byte;
u8 dpofua;
VPRINTK("ENTER\n");
goto invalid_fld;
}
- if (six_byte) {
- output_len = 4 + (ebd ? 8 : 0);
- alloc_len = scsicmd[4];
- } else {
- output_len = 8 + (ebd ? 8 : 0);
- alloc_len = (scsicmd[7] << 8) + scsicmd[8];
- }
- minlen = (alloc_len < buflen) ? alloc_len : buflen;
-
- p = rbuf + output_len;
- last = rbuf + minlen - 1;
+ if (six_byte)
+ p += 4 + (ebd ? 8 : 0);
+ else
+ p += 8 + (ebd ? 8 : 0);
pg = scsicmd[2] & 0x3f;
spg = scsicmd[3];
switch(pg) {
case RW_RECOVERY_MPAGE:
- output_len += ata_msense_rw_recovery(&p, last);
+ p += ata_msense_rw_recovery(p);
break;
case CACHE_MPAGE:
- output_len += ata_msense_caching(args->id, &p, last);
+ p += ata_msense_caching(args->id, p);
break;
- case CONTROL_MPAGE: {
- output_len += ata_msense_ctl_mode(&p, last);
+ case CONTROL_MPAGE:
+ p += ata_msense_ctl_mode(p);
break;
- }
case ALL_MPAGES:
- output_len += ata_msense_rw_recovery(&p, last);
- output_len += ata_msense_caching(args->id, &p, last);
- output_len += ata_msense_ctl_mode(&p, last);
+ p += ata_msense_rw_recovery(p);
+ p += ata_msense_caching(args->id, p);
+ p += ata_msense_ctl_mode(p);
break;
default: /* invalid page code */
goto invalid_fld;
}
- if (minlen < 1)
- return 0;
-
dpofua = 0;
if (ata_dev_supports_fua(args->id) && (dev->flags & ATA_DFLAG_LBA48) &&
(!(dev->flags & ATA_DFLAG_PIO) || dev->multi_count))
dpofua = 1 << 4;
if (six_byte) {
- output_len--;
- rbuf[0] = output_len;
- if (minlen > 2)
- rbuf[2] |= dpofua;
+ rbuf[0] = p - rbuf - 1;
+ rbuf[2] |= dpofua;
if (ebd) {
- if (minlen > 3)
- rbuf[3] = sizeof(sat_blk_desc);
- if (minlen > 11)
- memcpy(rbuf + 4, sat_blk_desc,
- sizeof(sat_blk_desc));
+ rbuf[3] = sizeof(sat_blk_desc);
+ memcpy(rbuf + 4, sat_blk_desc, sizeof(sat_blk_desc));
}
} else {
- output_len -= 2;
+ unsigned int output_len = p - rbuf - 2;
+
rbuf[0] = output_len >> 8;
- if (minlen > 1)
- rbuf[1] = output_len;
- if (minlen > 3)
- rbuf[3] |= dpofua;
+ rbuf[1] = output_len;
+ rbuf[3] |= dpofua;
if (ebd) {
- if (minlen > 7)
- rbuf[7] = sizeof(sat_blk_desc);
- if (minlen > 15)
- memcpy(rbuf + 8, sat_blk_desc,
- sizeof(sat_blk_desc));
+ rbuf[7] = sizeof(sat_blk_desc);
+ memcpy(rbuf + 8, sat_blk_desc, sizeof(sat_blk_desc));
}
}
return 0;
* ata_scsiop_read_cap - Simulate READ CAPACITY[ 16] commands
* @args: device IDENTIFY data / SCSI command of interest.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
- * @buflen: Response buffer length.
*
* Simulate READ CAPACITY commands.
*
* LOCKING:
* None.
*/
-unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
- unsigned int buflen)
+static unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf)
{
- u64 last_lba = args->dev->n_sectors - 1; /* LBA of the last block */
+ struct ata_device *dev = args->dev;
+ u64 last_lba = dev->n_sectors - 1; /* LBA of the last block */
+ u8 log_per_phys = 0;
+ u16 lowest_aligned = 0;
+ u16 word_106 = dev->id[106];
+ u16 word_209 = dev->id[209];
+
+ if ((word_106 & 0xc000) == 0x4000) {
+ /* Number and offset of logical sectors per physical sector */
+ if (word_106 & (1 << 13))
+ log_per_phys = word_106 & 0xf;
+ if ((word_209 & 0xc000) == 0x4000) {
+ u16 first = dev->id[209] & 0x3fff;
+ if (first > 0)
+ lowest_aligned = (1 << log_per_phys) - first;
+ }
+ }
VPRINTK("ENTER\n");
last_lba = 0xffffffff;
/* sector count, 32-bit */
- 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);
+ rbuf[0] = last_lba >> (8 * 3);
+ rbuf[1] = last_lba >> (8 * 2);
+ rbuf[2] = last_lba >> (8 * 1);
+ rbuf[3] = last_lba;
/* sector size */
- ATA_SCSI_RBUF_SET(6, ATA_SECT_SIZE >> 8);
- ATA_SCSI_RBUF_SET(7, ATA_SECT_SIZE);
+ rbuf[6] = ATA_SECT_SIZE >> 8;
+ rbuf[7] = ATA_SECT_SIZE & 0xff;
} else {
/* sector count, 64-bit */
- 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);
+ rbuf[0] = last_lba >> (8 * 7);
+ rbuf[1] = last_lba >> (8 * 6);
+ rbuf[2] = last_lba >> (8 * 5);
+ rbuf[3] = last_lba >> (8 * 4);
+ rbuf[4] = last_lba >> (8 * 3);
+ rbuf[5] = last_lba >> (8 * 2);
+ rbuf[6] = last_lba >> (8 * 1);
+ rbuf[7] = last_lba;
/* sector size */
- ATA_SCSI_RBUF_SET(10, ATA_SECT_SIZE >> 8);
- ATA_SCSI_RBUF_SET(11, ATA_SECT_SIZE);
+ rbuf[10] = ATA_SECT_SIZE >> 8;
+ rbuf[11] = ATA_SECT_SIZE & 0xff;
+
+ rbuf[12] = 0;
+ rbuf[13] = log_per_phys;
+ rbuf[14] = (lowest_aligned >> 8) & 0x3f;
+ rbuf[15] = lowest_aligned;
+
+ if (ata_id_has_trim(args->id)) {
+ rbuf[14] |= 0x80; /* TPE */
+
+ if (ata_id_has_zero_after_trim(args->id))
+ rbuf[14] |= 0x40; /* TPRZ */
+ }
}
return 0;
* ata_scsiop_report_luns - Simulate REPORT LUNS command
* @args: device IDENTIFY data / SCSI command of interest.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
- * @buflen: Response buffer length.
*
* Simulate REPORT LUNS command.
*
* LOCKING:
* spin_lock_irqsave(host lock)
*/
-
-unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf,
- unsigned int buflen)
+static unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf)
{
VPRINTK("ENTER\n");
rbuf[3] = 8; /* just one lun, LUN 0, size 8 bytes */
return 0;
}
-/**
- * ata_scsi_set_sense - Set SCSI sense data and status
- * @cmd: SCSI request to be handled
- * @sk: SCSI-defined sense key
- * @asc: SCSI-defined additional sense code
- * @ascq: SCSI-defined additional sense code qualifier
- *
- * Helper function that builds a valid fixed format, current
- * response code and the given sense key (sk), additional sense
- * code (asc) and additional sense code qualifier (ascq) with
- * a SCSI command status of %SAM_STAT_CHECK_CONDITION and
- * DRIVER_SENSE set in the upper bits of scsi_cmnd::result .
- *
- * LOCKING:
- * Not required
- */
-
-void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq)
-{
- cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
-
- cmd->sense_buffer[0] = 0x70; /* fixed format, current */
- cmd->sense_buffer[2] = sk;
- cmd->sense_buffer[7] = 18 - 8; /* additional sense length */
- cmd->sense_buffer[12] = asc;
- cmd->sense_buffer[13] = ascq;
-}
-
-/**
- * ata_scsi_badcmd - End a SCSI request with an error
- * @cmd: SCSI request to be handled
- * @done: SCSI command completion function
- * @asc: SCSI-defined additional sense code
- * @ascq: SCSI-defined additional sense code qualifier
- *
- * Helper function that completes a SCSI command with
- * %SAM_STAT_CHECK_CONDITION, with a sense key %ILLEGAL_REQUEST
- * and the specified additional sense codes.
- *
- * LOCKING:
- * spin_lock_irqsave(host lock)
- */
-
-void ata_scsi_badcmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), u8 asc, u8 ascq)
-{
- DPRINTK("ENTER\n");
- ata_scsi_set_sense(cmd, ILLEGAL_REQUEST, asc, ascq);
-
- done(cmd);
-}
-
static void atapi_sense_complete(struct ata_queued_cmd *qc)
{
if (qc->err_mask && ((qc->err_mask & AC_ERR_DEV) == 0)) {
DPRINTK("ATAPI request sense\n");
/* FIXME: is this needed? */
- memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+ memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
- ap->ops->tf_read(ap, &qc->tf);
+#ifdef CONFIG_ATA_SFF
+ if (ap->ops->sff_tf_read)
+ ap->ops->sff_tf_read(ap, &qc->tf);
+#endif
/* fill these in, for the case where they are -not- overwritten */
cmd->sense_buffer[0] = 0x70;
ata_qc_reinit(qc);
- ata_sg_init_one(qc, cmd->sense_buffer, sizeof(cmd->sense_buffer));
+ /* setup sg table and init transfer direction */
+ sg_init_one(&qc->sgent, cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE);
+ ata_sg_init(qc, &qc->sgent, 1);
qc->dma_dir = DMA_FROM_DEVICE;
memset(&qc->cdb, 0, qc->dev->cdb_len);
qc->tf.command = ATA_CMD_PACKET;
if (ata_pio_use_silly(ap)) {
- qc->tf.protocol = ATA_PROT_ATAPI_DMA;
+ qc->tf.protocol = ATAPI_PROT_DMA;
qc->tf.feature |= ATAPI_PKT_DMA;
} else {
- qc->tf.protocol = ATA_PROT_ATAPI;
+ qc->tf.protocol = ATAPI_PROT_PIO;
qc->tf.lbam = SCSI_SENSE_BUFFERSIZE;
qc->tf.lbah = 0;
}
u8 *scsicmd = cmd->cmnd;
if ((scsicmd[0] == INQUIRY) && ((scsicmd[1] & 0x03) == 0)) {
- u8 *buf = NULL;
- unsigned int buflen;
+ unsigned long flags;
+ u8 *buf;
- buflen = ata_scsi_rbuf_get(cmd, &buf);
+ buf = ata_scsi_rbuf_get(cmd, true, &flags);
/* ATAPI devices typically report zero for their SCSI version,
* and sometimes deviate from the spec WRT response data
buf[3] = 0x32;
}
- ata_scsi_rbuf_put(cmd, buf);
+ ata_scsi_rbuf_put(cmd, true, &flags);
}
cmd->result = SAM_STAT_GOOD;
{
struct scsi_cmnd *scmd = qc->scsicmd;
struct ata_device *dev = qc->dev;
- int using_pio = (dev->flags & ATA_DFLAG_PIO);
int nodata = (scmd->sc_data_direction == DMA_NONE);
+ int using_pio = !nodata && (dev->flags & ATA_DFLAG_PIO);
unsigned int nbytes;
memset(qc->cdb, 0, dev->cdb_len);
}
qc->tf.command = ATA_CMD_PACKET;
- qc->nbytes = scsi_bufflen(scmd);
+ ata_qc_set_pc_nbytes(qc);
/* check whether ATAPI DMA is safe */
- if (!using_pio && ata_check_atapi_dma(qc))
+ if (!nodata && !using_pio && atapi_check_dma(qc))
using_pio = 1;
/* Some controller variants snoop this value for Packet
* want to set it properly, and for DMA where it is
* effectively meaningless.
*/
- nbytes = min(qc->nbytes, (unsigned int)63 * 1024);
+ nbytes = min(ata_qc_raw_nbytes(qc), (unsigned int)63 * 1024);
/* Most ATAPI devices which honor transfer chunk size don't
* behave according to the spec when odd chunk size which
qc->tf.lbam = (nbytes & 0xFF);
qc->tf.lbah = (nbytes >> 8);
- if (using_pio || nodata) {
- /* no data, or PIO data xfer */
- if (nodata)
- qc->tf.protocol = ATA_PROT_ATAPI_NODATA;
- else
- qc->tf.protocol = ATA_PROT_ATAPI;
- } else {
+ if (nodata)
+ qc->tf.protocol = ATAPI_PROT_NODATA;
+ else if (using_pio)
+ qc->tf.protocol = ATAPI_PROT_PIO;
+ else {
/* DMA data xfer */
- qc->tf.protocol = ATA_PROT_ATAPI_DMA;
+ qc->tf.protocol = ATAPI_PROT_DMA;
qc->tf.feature |= ATAPI_PKT_DMA;
- if (atapi_dmadir && (scmd->sc_data_direction != DMA_TO_DEVICE))
+ if ((dev->flags & ATA_DFLAG_DMADIR) &&
+ (scmd->sc_data_direction != DMA_TO_DEVICE))
/* some SATA bridges need us to indicate data xfer direction */
qc->tf.feature |= ATAPI_DMADIR;
}
static struct ata_device *ata_find_dev(struct ata_port *ap, int devno)
{
- if (ap->nr_pmp_links == 0) {
+ if (!sata_pmp_attached(ap)) {
if (likely(devno < ata_link_max_devices(&ap->link)))
return &ap->link.device[devno];
} else {
int devno;
/* skip commands not addressed to targets we simulate */
- if (ap->nr_pmp_links == 0) {
+ if (!sata_pmp_attached(ap)) {
if (unlikely(scsidev->channel || scsidev->lun))
return NULL;
devno = scsidev->id;
}
/**
- * ata_scsi_dev_enabled - determine if device is enabled
- * @dev: ATA device
- *
- * Determine if commands should be sent to the specified device.
- *
- * LOCKING:
- * spin_lock_irqsave(host lock)
- *
- * RETURNS:
- * 0 if commands are not allowed / 1 if commands are allowed
- */
-
-static int ata_scsi_dev_enabled(struct ata_device *dev)
-{
- if (unlikely(!ata_dev_enabled(dev)))
- return 0;
-
- if (!atapi_enabled || (dev->link->ap->flags & ATA_FLAG_NO_ATAPI)) {
- if (unlikely(dev->class == ATA_DEV_ATAPI)) {
- ata_dev_printk(dev, KERN_WARNING,
- "WARNING: ATAPI is %s, device ignored.\n",
- atapi_enabled ? "not supported with this driver" : "disabled");
- return 0;
- }
- }
-
- return 1;
-}
-
-/**
* ata_scsi_find_dev - lookup ata_device from scsi_cmnd
* @ap: ATA port to which the device is attached
* @scsidev: SCSI device from which we derive the ATA device
{
struct ata_device *dev = __ata_scsi_find_dev(ap, scsidev);
- if (unlikely(!dev || !ata_scsi_dev_enabled(dev)))
+ if (unlikely(!dev || !ata_dev_enabled(dev)))
return NULL;
return dev;
goto invalid_fld;
/*
- * Filter TPM commands by default. These provide an
- * essentially uncontrolled encrypted "back door" between
- * applications and the disk. Set libata.allow_tpm=1 if you
- * have a real reason for wanting to use them. This ensures
- * that installed software cannot easily mess stuff up without
- * user intent. DVR type users will probably ship with this enabled
- * for movie content management.
- *
- * Note that for ATA8 we can issue a DCS change and DCS freeze lock
- * for this and should do in future but that it is not sufficient as
- * DCS is an optional feature set. Thus we also do the software filter
- * so that we comply with the TC consortium stated goal that the user
- * can turn off TC features of their system.
- */
- if (tf->command >= 0x5C && tf->command <= 0x5F && !libata_allow_tpm)
- goto invalid_fld;
-
- /* We may not issue DMA commands if no DMA mode is set */
- if (tf->protocol == ATA_PROT_DMA && dev->dma_mode == 0)
- goto invalid_fld;
-
- /*
* 12 and 16 byte CDBs use different offsets to
* provide the various register values.
*/
tf->device = dev->devno ?
tf->device | ATA_DEV1 : tf->device & ~ATA_DEV1;
+ /* READ/WRITE LONG use a non-standard sect_size */
+ qc->sect_size = ATA_SECT_SIZE;
+ switch (tf->command) {
+ case ATA_CMD_READ_LONG:
+ case ATA_CMD_READ_LONG_ONCE:
+ case ATA_CMD_WRITE_LONG:
+ case ATA_CMD_WRITE_LONG_ONCE:
+ if (tf->protocol != ATA_PROT_PIO || tf->nsect != 1)
+ goto invalid_fld;
+ qc->sect_size = scsi_bufflen(scmd);
+ }
+
+ /*
+ * Set flags so that all registers will be written, pass on
+ * write indication (used for PIO/DMA setup), result TF is
+ * copied back and we don't whine too much about its failure.
+ */
+ tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+ if (scmd->sc_data_direction == DMA_TO_DEVICE)
+ tf->flags |= ATA_TFLAG_WRITE;
+
+ qc->flags |= ATA_QCFLAG_RESULT_TF | ATA_QCFLAG_QUIET;
+
+ /*
+ * Set transfer length.
+ *
+ * TODO: find out if we need to do more here to
+ * cover scatter/gather case.
+ */
+ ata_qc_set_pc_nbytes(qc);
+
+ /* We may not issue DMA commands if no DMA mode is set */
+ if (tf->protocol == ATA_PROT_DMA && dev->dma_mode == 0)
+ goto invalid_fld;
+
/* sanity check for pio multi commands */
if ((cdb[1] & 0xe0) && !is_multi_taskfile(tf))
goto invalid_fld;
multi_count);
}
- /* READ/WRITE LONG use a non-standard sect_size */
- qc->sect_size = ATA_SECT_SIZE;
- switch (tf->command) {
- case ATA_CMD_READ_LONG:
- case ATA_CMD_READ_LONG_ONCE:
- case ATA_CMD_WRITE_LONG:
- case ATA_CMD_WRITE_LONG_ONCE:
- if (tf->protocol != ATA_PROT_PIO || tf->nsect != 1)
- goto invalid_fld;
- qc->sect_size = scsi_bufflen(scmd);
- }
-
/*
* Filter SET_FEATURES - XFER MODE command -- otherwise,
* SET_FEATURES - XFER MODE must be preceded/succeeded
* controller (i.e. the reason for ->set_piomode(),
* ->set_dmamode(), and ->post_set_mode() hooks).
*/
- if ((tf->command == ATA_CMD_SET_FEATURES)
- && (tf->feature == SETFEATURES_XFER))
+ if (tf->command == ATA_CMD_SET_FEATURES &&
+ tf->feature == SETFEATURES_XFER)
goto invalid_fld;
/*
- * Set flags so that all registers will be written,
- * and pass on write indication (used for PIO/DMA
- * setup.)
+ * Filter TPM commands by default. These provide an
+ * essentially uncontrolled encrypted "back door" between
+ * applications and the disk. Set libata.allow_tpm=1 if you
+ * have a real reason for wanting to use them. This ensures
+ * that installed software cannot easily mess stuff up without
+ * user intent. DVR type users will probably ship with this enabled
+ * for movie content management.
+ *
+ * Note that for ATA8 we can issue a DCS change and DCS freeze lock
+ * for this and should do in future but that it is not sufficient as
+ * DCS is an optional feature set. Thus we also do the software filter
+ * so that we comply with the TC consortium stated goal that the user
+ * can turn off TC features of their system.
*/
- tf->flags |= (ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE);
+ if (tf->command >= 0x5C && tf->command <= 0x5F && !libata_allow_tpm)
+ goto invalid_fld;
- if (scmd->sc_data_direction == DMA_TO_DEVICE)
- tf->flags |= ATA_TFLAG_WRITE;
+ return 0;
+
+ invalid_fld:
+ ata_scsi_set_sense(scmd, ILLEGAL_REQUEST, 0x24, 0x00);
+ /* "Invalid field in cdb" */
+ return 1;
+}
+
+static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
+{
+ struct ata_taskfile *tf = &qc->tf;
+ struct scsi_cmnd *scmd = qc->scsicmd;
+ struct ata_device *dev = qc->dev;
+ const u8 *cdb = scmd->cmnd;
+ u64 block;
+ u32 n_block;
+ u32 size;
+ void *buf;
+
+ /* we may not issue DMA commands if no DMA mode is set */
+ if (unlikely(!dev->dma_mode))
+ goto invalid_fld;
+
+ if (unlikely(scmd->cmd_len < 16))
+ goto invalid_fld;
+ scsi_16_lba_len(cdb, &block, &n_block);
+
+ /* for now we only support WRITE SAME with the unmap bit set */
+ if (unlikely(!(cdb[1] & 0x8)))
+ goto invalid_fld;
/*
- * Set transfer length.
- *
- * TODO: find out if we need to do more here to
- * cover scatter/gather case.
+ * WRITE SAME always has a sector sized buffer as payload, this
+ * should never be a multiple entry S/G list.
*/
- qc->nbytes = scsi_bufflen(scmd);
+ if (!scsi_sg_count(scmd))
+ goto invalid_fld;
- /* request result TF and be quiet about device error */
- qc->flags |= ATA_QCFLAG_RESULT_TF | ATA_QCFLAG_QUIET;
+ buf = page_address(sg_page(scsi_sglist(scmd)));
+ size = ata_set_lba_range_entries(buf, 512, block, n_block);
+
+ tf->protocol = ATA_PROT_DMA;
+ tf->hob_feature = 0;
+ tf->feature = ATA_DSM_TRIM;
+ tf->hob_nsect = (size / 512) >> 8;
+ tf->nsect = size / 512;
+ tf->command = ATA_CMD_DSM;
+ tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_LBA48 |
+ ATA_TFLAG_WRITE;
+
+ ata_qc_set_pc_nbytes(qc);
return 0;
case WRITE_16:
return ata_scsi_rw_xlat;
+ case WRITE_SAME_16:
+ return ata_scsi_write_same_xlat;
+
case SYNCHRONIZE_CACHE:
if (ata_try_flush_cache(dev))
return ata_scsi_flush_xlat;
case 0x89:
ata_scsi_rbuf_fill(&args, ata_scsiop_inq_89);
break;
+ case 0xb0:
+ ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b0);
+ break;
+ case 0xb1:
+ ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b1);
+ break;
default:
ata_scsi_invalid_field(cmd, done);
break;
return;
repeat:
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ENABLED) {
struct scsi_device *sdev;
int channel = 0, id = 0;
- if (!ata_dev_enabled(dev) || dev->sdev)
+ if (dev->sdev)
continue;
if (ata_is_host_link(link))
* failure occurred, scan would have failed silently. Check
* whether all devices are attached.
*/
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link) {
- if (ata_dev_enabled(dev) && !dev->sdev)
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ENABLED) {
+ if (!dev->sdev)
goto exit_loop;
}
}
if (sdev) {
ata_dev_printk(dev, KERN_INFO, "detaching (SCSI %s)\n",
- sdev->sdev_gendev.bus_id);
+ dev_name(&sdev->sdev_gendev));
scsi_remove_device(sdev);
scsi_device_put(sdev);
struct ata_port *ap = link->ap;
struct ata_device *dev;
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_dev(dev, link, ALL) {
unsigned long flags;
if (!(dev->flags & ATA_DFLAG_DETACHED))
if (lun != SCAN_WILD_CARD && lun)
return -EINVAL;
- if (ap->nr_pmp_links == 0) {
+ if (!sata_pmp_attached(ap)) {
if (channel != SCAN_WILD_CARD && channel)
return -EINVAL;
devno = id;
if (devno == SCAN_WILD_CARD) {
struct ata_link *link;
- ata_port_for_each_link(link, ap) {
+ ata_for_each_link(link, ap, EDGE) {
struct ata_eh_info *ehi = &link->eh_info;
- ehi->probe_mask |= (1 << ata_link_max_devices(link)) - 1;
- ehi->action |= ATA_EH_SOFTRESET;
+ ehi->probe_mask |= ATA_ALL_DEVICES;
+ ehi->action |= ATA_EH_RESET;
}
} else {
struct ata_device *dev = ata_find_dev(ap, devno);
if (dev) {
struct ata_eh_info *ehi = &dev->link->eh_info;
ehi->probe_mask |= 1 << dev->devno;
- ehi->action |= ATA_EH_SOFTRESET;
- ehi->flags |= ATA_EHI_RESUME_LINK;
+ ehi->action |= ATA_EH_RESET;
} else
rc = -EINVAL;
}
spin_lock_irqsave(ap->lock, flags);
- ata_port_for_each_link(link, ap) {
- ata_link_for_each_dev(dev, link) {
+ ata_for_each_link(link, ap, EDGE) {
+ ata_for_each_dev(dev, link, ENABLED) {
struct scsi_device *sdev = dev->sdev;
- if (!ata_dev_enabled(dev) || !sdev)
+ if (!sdev)
continue;
if (scsi_device_get(sdev))
continue;
* @ap: Port to initialize
*
* Called just after data structures for each port are
- * initialized. Allocates DMA pad.
+ * initialized.
*
* May be used as the port_start() entry in ata_port_operations.
*
*/
int ata_sas_port_start(struct ata_port *ap)
{
- return ata_pad_alloc(ap, ap->dev);
+ return 0;
}
EXPORT_SYMBOL_GPL(ata_sas_port_start);
* ata_port_stop - Undo ata_sas_port_start()
* @ap: Port to shut down
*
- * Frees the DMA pad.
- *
* May be used as the port_stop() entry in ata_port_operations.
*
* LOCKING:
void ata_sas_port_stop(struct ata_port *ap)
{
- ata_pad_free(ap, ap->dev);
}
EXPORT_SYMBOL_GPL(ata_sas_port_stop);
ata_scsi_dump_cdb(ap, cmd);
- if (likely(ata_scsi_dev_enabled(ap->link.device)))
+ if (likely(ata_dev_enabled(ap->link.device)))
rc = __ata_scsi_queuecmd(cmd, done, ap->link.device);
else {
cmd->result = (DID_BAD_TARGET << 16);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff