aboutsummaryrefslogtreecommitdiff
path: root/drivers/ata/libata-core.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ata/libata-core.c')
-rw-r--r--drivers/ata/libata-core.c67
1 files changed, 56 insertions, 11 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index dc362fa01ca..0abd72d0dec 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -93,8 +93,8 @@ static int ata_probe_timeout = ATA_TMOUT_INTERNAL / HZ;
module_param(ata_probe_timeout, int, 0444);
MODULE_PARM_DESC(ata_probe_timeout, "Set ATA probing timeout (seconds)");
-int noacpi;
-module_param(noacpi, int, 0444);
+int libata_noacpi = 1;
+module_param_named(noacpi, libata_noacpi, int, 0444);
MODULE_PARM_DESC(noacpi, "Disables the use of ACPI in suspend/resume when set");
MODULE_AUTHOR("Jeff Garzik");
@@ -826,7 +826,7 @@ static u64 ata_id_n_sectors(const u16 *id)
/**
* ata_id_to_dma_mode - Identify DMA mode from id block
* @dev: device to identify
- * @mode: mode to assume if we cannot tell
+ * @unknown: mode to assume if we cannot tell
*
* Set up the timing values for the device based upon the identify
* reported values for the DMA mode. This function is used by drivers
@@ -1784,6 +1784,13 @@ int ata_dev_configure(struct ata_device *dev)
dev->max_sectors = ATA_MAX_SECTORS;
}
+ if (ata_device_blacklisted(dev) & ATA_HORKAGE_MAX_SEC_128)
+ dev->max_sectors = min(ATA_MAX_SECTORS_128, dev->max_sectors);
+
+ /* limit ATAPI DMA to R/W commands only */
+ if (ata_device_blacklisted(dev) & ATA_HORKAGE_DMA_RW_ONLY)
+ dev->horkage |= ATA_HORKAGE_DMA_RW_ONLY;
+
if (ap->ops->dev_config)
ap->ops->dev_config(ap, dev);
@@ -3352,6 +3359,10 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "_NEC DV5800A", NULL, ATA_HORKAGE_NODMA },
{ "SAMSUNG CD-ROM SN-124","N001", ATA_HORKAGE_NODMA },
+ /* Weird ATAPI devices */
+ { "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 |
+ ATA_HORKAGE_DMA_RW_ONLY },
+
/* Devices we expect to fail diagnostics */
/* Devices where NCQ should be avoided */
@@ -3359,6 +3370,15 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "WDC WD740ADFD-00", NULL, ATA_HORKAGE_NONCQ },
/* http://thread.gmane.org/gmane.linux.ide/14907 */
{ "FUJITSU MHT2060BH", NULL, ATA_HORKAGE_NONCQ },
+ /* NCQ is broken */
+ { "Maxtor 6L250S0", "BANC1G10", 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
+ Windows driver .inf file - also several Linux problem reports */
+ { "HTS541060G9SA00", "MB3OC60D", ATA_HORKAGE_NONCQ, },
+ { "HTS541080G9SA00", "MB4OC60D", ATA_HORKAGE_NONCQ, },
+ { "HTS541010G9SA00", "MBZOC60D", ATA_HORKAGE_NONCQ, },
/* Devices with NCQ limits */
@@ -3455,7 +3475,8 @@ static void ata_dev_xfermask(struct ata_device *dev)
"device is on DMA blacklist, disabling DMA\n");
}
- if ((host->flags & ATA_HOST_SIMPLEX) && host->simplex_claimed != ap) {
+ if ((host->flags & ATA_HOST_SIMPLEX) &&
+ host->simplex_claimed && host->simplex_claimed != ap) {
xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
ata_dev_printk(dev, KERN_WARNING, "simplex DMA is claimed by "
"other device, disabling DMA\n");
@@ -3669,6 +3690,26 @@ 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;
+ }
+ }
+
if (ap->ops->check_atapi_dma)
rc = ap->ops->check_atapi_dma(qc);
@@ -4712,8 +4753,8 @@ static void fill_result_tf(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
- ap->ops->tf_read(ap, &qc->result_tf);
qc->result_tf.flags = qc->tf.flags;
+ ap->ops->tf_read(ap, &qc->result_tf);
}
/**
@@ -5684,18 +5725,22 @@ static void ata_host_release(struct device *gendev, void *res)
for (i = 0; i < host->n_ports; i++) {
struct ata_port *ap = host->ports[i];
- if (!ap)
- continue;
-
- if (ap->ops->port_stop)
+ if (ap && ap->ops->port_stop)
ap->ops->port_stop(ap);
-
- scsi_host_put(ap->scsi_host);
}
if (host->ops->host_stop)
host->ops->host_stop(host);
+ for (i = 0; i < host->n_ports; i++) {
+ struct ata_port *ap = host->ports[i];
+
+ if (ap)
+ scsi_host_put(ap->scsi_host);
+
+ host->ports[i] = NULL;
+ }
+
dev_set_drvdata(gendev, NULL);
}