void ata_dev_disable(struct ata_device *dev)
{
- if (ata_dev_enabled(dev) && ata_msg_drv(dev->ap)) {
- ata_dev_printk(dev, KERN_WARNING, "disabled\n");
+ if (ata_dev_enabled(dev)) {
+ if (ata_msg_drv(dev->ap))
+ ata_dev_printk(dev, KERN_WARNING, "disabled\n");
ata_down_xfermask_limit(dev, ATA_DNXFER_FORCE_PIO0 |
ATA_DNXFER_QUIET);
dev->class++;
else
hpa_sectors = ata_read_native_max_address(dev);
- /* if no hpa, both should be equal */
- ata_dev_printk(dev, KERN_INFO, "%s 1: sectors = %lld, "
- "hpa_sectors = %lld\n",
- __FUNCTION__, (long long)sectors, (long long)hpa_sectors);
-
if (hpa_sectors > sectors) {
ata_dev_printk(dev, KERN_INFO,
"Host Protected Area detected:\n"
return hpa_sectors;
}
}
- }
+ } else if (hpa_sectors < sectors)
+ ata_dev_printk(dev, KERN_WARNING, "%s 1: hpa sectors (%lld) "
+ "is smaller than sectors (%lld)\n", __FUNCTION__,
+ (long long)hpa_sectors, (long long)sectors);
+
return sectors;
}
/* sanity check */
rc = -EINVAL;
- reason = "device reports illegal type";
+ reason = "device reports invalid type";
if (class == ATA_DEV_ATA) {
if (!ata_id_is_ata(id) && !ata_id_is_cfa(id))
if (ata_msg_probe(ap))
ata_dump_id(id);
+ /* SCSI only uses 4-char revisions, dump full 8 chars from ATA */
+ ata_id_c_string(dev->id, fwrevbuf, ATA_ID_FW_REV,
+ sizeof(fwrevbuf));
+
+ ata_id_c_string(dev->id, modelbuf, ATA_ID_PROD,
+ sizeof(modelbuf));
+
/* ATA-specific feature tests */
if (dev->class == ATA_DEV_ATA) {
if (ata_id_is_cfa(id)) {
dev->n_sectors = ata_id_n_sectors(id);
- /* SCSI only uses 4-char revisions, dump full 8 chars from ATA */
- ata_id_c_string(dev->id, fwrevbuf, ATA_ID_FW_REV,
- sizeof(fwrevbuf));
-
- ata_id_c_string(dev->id, modelbuf, ATA_ID_PROD,
- sizeof(modelbuf));
-
if (dev->id[59] & 0x100)
dev->multi_count = dev->id[59] & 0xff;
/* print device info to dmesg */
if (ata_msg_drv(ap) && print_info)
- ata_dev_printk(dev, KERN_INFO, "ATAPI, max %s%s\n",
+ ata_dev_printk(dev, KERN_INFO,
+ "ATAPI: %s, %s, max %s%s\n",
+ modelbuf, fwrevbuf,
ata_mode_string(xfer_mask),
cdb_intr_string);
}
}
}
- /* if device 1 was found in ata_devchk, wait for
- * register access, then wait for BSY to clear
+ /* if device 1 was found in ata_devchk, wait for register
+ * access briefly, then wait for BSY to clear.
*/
- while (dev1) {
- u8 nsect, lbal;
+ if (dev1) {
+ int i;
ap->ops->dev_select(ap, 1);
- nsect = ioread8(ioaddr->nsect_addr);
- lbal = ioread8(ioaddr->lbal_addr);
- if ((nsect == 1) && (lbal == 1))
- break;
- if (time_after(jiffies, deadline))
- return -EBUSY;
- msleep(50); /* give drive a breather */
- }
- if (dev1) {
+
+ /* Wait for register access. Some ATAPI devices fail
+ * to set nsect/lbal after reset, so don't waste too
+ * much time on it. We're gonna wait for !BSY anyway.
+ */
+ for (i = 0; i < 2; i++) {
+ u8 nsect, lbal;
+
+ nsect = ioread8(ioaddr->nsect_addr);
+ lbal = ioread8(ioaddr->lbal_addr);
+ if ((nsect == 1) && (lbal == 1))
+ break;
+ msleep(50); /* give drive a breather */
+ }
+
rc = ata_wait_ready(ap, deadline);
if (rc) {
if (rc != -ENODEV)
/**
* ata_dev_reread_id - Re-read IDENTIFY data
- * @adev: target ATA device
+ * @dev: target ATA device
* @readid_flags: read ID flags
*
* Re-read IDENTIFY page and make sure @dev is still attached to
{ "_NEC DV5800A", NULL, ATA_HORKAGE_NODMA },
{ "SAMSUNG CD-ROM SN-124","N001", ATA_HORKAGE_NODMA },
{ "Seagate STT20000A", NULL, ATA_HORKAGE_NODMA },
+ { "IOMEGA ZIP 250 ATAPI", NULL, ATA_HORKAGE_NODMA }, /* temporary fix */
/* Weird ATAPI devices */
{ "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 |
{ "FUJITSU MHT2060BH", NULL, ATA_HORKAGE_NONCQ },
/* NCQ is broken */
{ "Maxtor 6L250S0", "BANC1G10", ATA_HORKAGE_NONCQ },
+ { "Maxtor 6B200M0", "BANC1B10", ATA_HORKAGE_NONCQ },
/* NCQ hard hangs device under heavier load, needs hard power cycle */
{ "Maxtor 6B250S0", "BANC1B70", ATA_HORKAGE_NONCQ },
/* Blacklist entries taken from Silicon Image 3124/3132
{ "HTS541060G9SA00", "MB3OC60D", ATA_HORKAGE_NONCQ, },
{ "HTS541080G9SA00", "MB4OC60D", ATA_HORKAGE_NONCQ, },
{ "HTS541010G9SA00", "MBZOC60D", ATA_HORKAGE_NONCQ, },
+ /* Drives which do spurious command completion */
+ { "HTS541680J9SA00", "SB2IC7EP", ATA_HORKAGE_NONCQ, },
+ { "HTS541612J9SA00", "SBDIC7JP", ATA_HORKAGE_NONCQ, },
+ { "WDC WD740ADFD-00NLR1", NULL, ATA_HORKAGE_NONCQ, },
/* Devices with NCQ limits */
/* set up set-features taskfile */
DPRINTK("set features - xfer mode\n");
+ /* Some controllers and ATAPI devices show flaky interrupt
+ * behavior after setting xfer mode. Use polling instead.
+ */
ata_tf_init(dev, &tf);
tf.command = ATA_CMD_SET_FEATURES;
tf.feature = SETFEATURES_XFER;
- tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+ tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_POLLING;
tf.protocol = ATA_PROT_NODATA;
tf.nsect = dev->xfer_mode;
if (idx)
ap->prd[idx - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT);
}
+
/**
* ata_check_atapi_dma - Check whether ATAPI DMA can be supported
* @qc: Metadata associated with taskfile to check
int ata_check_atapi_dma(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
- int rc = 0; /* Assume ATAPI DMA is OK by default */
-
- /* some drives can only do ATAPI DMA on read/write */
- if (unlikely(qc->dev->horkage & ATA_HORKAGE_DMA_RW_ONLY)) {
- struct scsi_cmnd *cmd = qc->scsicmd;
- u8 *scsicmd = cmd->cmnd;
-
- switch (scsicmd[0]) {
- case READ_10:
- case WRITE_10:
- case READ_12:
- case WRITE_12:
- case READ_6:
- case WRITE_6:
- /* atapi dma maybe ok */
- break;
- default:
- /* turn off atapi dma */
- return 1;
- }
- }
+
+ /* Don't allow DMA if it isn't multiple of 16 bytes. Quite a
+ * few ATAPI devices choke on such DMA requests.
+ */
+ if (unlikely(qc->nbytes & 15))
+ return 1;
if (ap->ops->check_atapi_dma)
- rc = ap->ops->check_atapi_dma(qc);
+ return ap->ops->check_atapi_dma(qc);
- return rc;
+ return 0;
}
+
/**
* ata_qc_prep - Prepare taskfile for submission
* @qc: Metadata associated with taskfile to be prepared
}
}
- /* Some controllers show flaky interrupt behavior after
- * setting xfer mode. Use polling instead.
- */
- if (unlikely(qc->tf.command == ATA_CMD_SET_FEATURES &&
- qc->tf.feature == SETFEATURES_XFER) &&
- (ap->flags & ATA_FLAG_SETXFER_POLLING))
- qc->tf.flags |= ATA_TFLAG_POLLING;
-
/* select the device */
ata_dev_select(ap, qc->dev->devno, 1, 0);
/* init sata_spd_limit to the current value */
if (sata_scr_read(ap, SCR_CONTROL, &scontrol) == 0) {
int spd = (scontrol >> 4) & 0xf;
- ap->hw_sata_spd_limit &= (1 << spd) - 1;
+ if (spd)
+ ap->hw_sata_spd_limit &= (1 << spd) - 1;
}
ap->sata_spd_limit = ap->hw_sata_spd_limit;
if (rc)
devm_free_irq(host->dev, irq, host);
+ /* Used to print device info at probe */
+ host->irq = irq;
+
return rc;
}
EXPORT_SYMBOL_GPL(ata_altstatus);
EXPORT_SYMBOL_GPL(ata_exec_command);
EXPORT_SYMBOL_GPL(ata_port_start);
+EXPORT_SYMBOL_GPL(ata_sff_port_start);
EXPORT_SYMBOL_GPL(ata_interrupt);
EXPORT_SYMBOL_GPL(ata_do_set_mode);
EXPORT_SYMBOL_GPL(ata_data_xfer);
git.samba.org / sfrench / cifs-2.6.git / blobdiff