/**
* ata_tf_to_fis - Convert ATA taskfile to SATA FIS structure
* @tf: Taskfile to convert
- * @fis: Buffer into which data will output
* @pmp: Port multiplier port
+ * @is_cmd: This FIS is for command
+ * @fis: Buffer into which data will output
*
* Converts a standard ATA taskfile to a Serial ATA
* FIS structure (Register - Host to Device).
* LOCKING:
* Inherited from caller.
*/
-
-void ata_tf_to_fis(const struct ata_taskfile *tf, u8 *fis, u8 pmp)
+void ata_tf_to_fis(const struct ata_taskfile *tf, u8 pmp, int is_cmd, u8 *fis)
{
- fis[0] = 0x27; /* Register - Host to Device FIS */
- fis[1] = (pmp & 0xf) | (1 << 7); /* Port multiplier number,
- bit 7 indicates Command FIS */
+ fis[0] = 0x27; /* Register - Host to Device FIS */
+ fis[1] = pmp & 0xf; /* Port multiplier number*/
+ if (is_cmd)
+ fis[1] |= (1 << 7); /* bit 7 indicates Command FIS */
+
fis[2] = tf->command;
fis[3] = tf->feature;
tf.protocol = ATA_PROT_NODATA;
tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0);
- if (err_mask) {
+ if (err_mask && id[2] != 0x738c) {
rc = -EIO;
reason = "SPINUP failed";
goto err_out;
dev->flags |= ATA_DFLAG_FLUSH_EXT;
}
- if (ata_id_hpa_enabled(dev->id))
- dev->n_sectors = ata_hpa_resize(dev);
+ if (!(dev->horkage & ATA_HORKAGE_BROKEN_HPA) &&
+ ata_id_hpa_enabled(dev->id))
+ dev->n_sectors = ata_hpa_resize(dev);
/* config NCQ */
ata_dev_config_ncq(dev, ncq_desc, sizeof(ncq_desc));
u32 sstatus, spd, mask;
int rc, highbit;
+ if (!sata_scr_valid(ap))
+ return -EOPNOTSUPP;
+
+ /* If SCR can be read, use it to determine the current SPD.
+ * If not, use cached value in ap->sata_spd.
+ */
rc = sata_scr_read(ap, SCR_STATUS, &sstatus);
- if (rc)
- return rc;
+ if (rc == 0)
+ spd = (sstatus >> 4) & 0xf;
+ else
+ spd = ap->sata_spd;
mask = ap->sata_spd_limit;
if (mask <= 1)
return -EINVAL;
+
+ /* unconditionally mask off the highest bit */
highbit = fls(mask) - 1;
mask &= ~(1 << highbit);
- spd = (sstatus >> 4) & 0xf;
- if (spd <= 1)
- return -EINVAL;
- spd--;
- mask &= (1 << spd) - 1;
+ /* Mask off all speeds higher than or equal to the current
+ * one. Force 1.5Gbps if current SPD is not available.
+ */
+ if (spd > 1)
+ mask &= (1 << (spd - 1)) - 1;
+ else
+ mask &= 1;
+
+ /* were we already at the bottom? */
if (!mask)
return -EINVAL;
last = cur;
last_jiffies = jiffies;
- /* check deadline */
+ /* Check deadline. If debouncing failed, return
+ * -EPIPE to tell upper layer to lower link speed.
+ */
if (time_after(jiffies, deadline))
- return -EBUSY;
+ return -EPIPE;
}
}
goto fail;
/* verify n_sectors hasn't changed */
- if (dev->class == ATA_DEV_ATA && dev->n_sectors != n_sectors) {
+ if (dev->class == ATA_DEV_ATA && n_sectors &&
+ dev->n_sectors != n_sectors) {
ata_dev_printk(dev, KERN_INFO, "n_sectors mismatch "
"%llu != %llu\n",
(unsigned long long)n_sectors,
(unsigned long long)dev->n_sectors);
+
+ /* restore original n_sectors */
+ dev->n_sectors = n_sectors;
+
rc = -ENODEV;
goto fail;
}
{ "Hitachi HTS541616J9SA00", "SB4OC70P", ATA_HORKAGE_NONCQ, },
{ "WDC WD740ADFD-00NLR1", NULL, ATA_HORKAGE_NONCQ, },
{ "FUJITSU MHV2080BH", "00840028", ATA_HORKAGE_NONCQ, },
+ { "ST9160821AS", "3.CLF", ATA_HORKAGE_NONCQ, },
+ { "SAMSUNG HD401LJ", "ZZ100-15", ATA_HORKAGE_NONCQ, },
- /* Devices with NCQ limits */
+ /* devices which puke on READ_NATIVE_MAX */
+ { "HDS724040KLSA80", "KFAOA20N", ATA_HORKAGE_BROKEN_HPA, },
+ { "WDC WD3200JD-00KLB0", "WD-WCAMR1130137", ATA_HORKAGE_BROKEN_HPA },
+ { "WDC WD2500JD-00HBB0", "WD-WMAL71490727", ATA_HORKAGE_BROKEN_HPA },
+ { "MAXTOR 6L080L4", "A93.0500", ATA_HORKAGE_BROKEN_HPA },
/* End Marker */
{ }
tf.device |= (heads - 1) & 0x0f; /* max head = num. of heads - 1 */
err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0);
+ /* A clean abort indicates an original or just out of spec drive
+ and we should continue as we issue the setup based on the
+ drive reported working geometry */
+ if (err_mask == AC_ERR_DEV && (tf.feature & ATA_ABORTED))
+ err_mask = 0;
DPRINTK("EXIT, err_mask=%x\n", err_mask);
return err_mask;
*/
int sata_scr_read(struct ata_port *ap, int reg, u32 *val)
{
- if (sata_scr_valid(ap)) {
- *val = ap->ops->scr_read(ap, reg);
- return 0;
- }
+ if (sata_scr_valid(ap))
+ return ap->ops->scr_read(ap, reg, val);
return -EOPNOTSUPP;
}
*/
int sata_scr_write(struct ata_port *ap, int reg, u32 val)
{
- if (sata_scr_valid(ap)) {
- ap->ops->scr_write(ap, reg, val);
- return 0;
- }
+ if (sata_scr_valid(ap))
+ return ap->ops->scr_write(ap, reg, val);
return -EOPNOTSUPP;
}
*/
int sata_scr_write_flush(struct ata_port *ap, int reg, u32 val)
{
+ int rc;
+
if (sata_scr_valid(ap)) {
- ap->ops->scr_write(ap, reg, val);
- ap->ops->scr_read(ap, reg);
- return 0;
+ rc = ap->ops->scr_write(ap, reg, val);
+ if (rc == 0)
+ rc = ap->ops->scr_read(ap, reg, &val);
+ return rc;
}
return -EOPNOTSUPP;
}
/* SATA spd limit is bound to the first device */
ap->sata_spd_limit = ap->hw_sata_spd_limit;
+ ap->sata_spd = 0;
/* High bits of dev->flags are used to record warm plug
* requests which occur asynchronously. Synchronize using
*/
spin_lock_irqsave(ap->lock, flags);
dev->flags &= ~ATA_DFLAG_INIT_MASK;
+ dev->horkage = 0;
spin_unlock_irqrestore(ap->lock, flags);
memset((void *)dev + ATA_DEVICE_CLEAR_OFFSET, 0,
INIT_WORK(&ap->scsi_rescan_task, ata_scsi_dev_rescan);
INIT_LIST_HEAD(&ap->eh_done_q);
init_waitqueue_head(&ap->eh_wait_q);
+ init_timer_deferrable(&ap->fastdrain_timer);
+ ap->fastdrain_timer.function = ata_eh_fastdrain_timerfn;
+ ap->fastdrain_timer.data = (unsigned long)ap;
ap->cbl = ATA_CBL_NONE;
for (i = 0; i < host->n_ports; i++) {
struct ata_port *ap = host->ports[i];
- ata_scsi_scan_host(ap);
+ ata_scsi_scan_host(ap, 1);
}
return 0;
EXPORT_SYMBOL_GPL(ata_pci_clear_simplex);
#endif /* CONFIG_PCI */
+EXPORT_SYMBOL_GPL(__ata_ehi_push_desc);
+EXPORT_SYMBOL_GPL(ata_ehi_push_desc);
+EXPORT_SYMBOL_GPL(ata_ehi_clear_desc);
EXPORT_SYMBOL_GPL(ata_eng_timeout);
EXPORT_SYMBOL_GPL(ata_port_schedule_eh);
EXPORT_SYMBOL_GPL(ata_port_abort);
projects / cascardo / linux.git / blobdiff