aboutsummaryrefslogtreecommitdiff
path: root/drivers/ata
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/libata-core.c41
-rw-r--r--drivers/ata/pata_ali.c40
-rw-r--r--drivers/ata/pata_sil680.c2
-rw-r--r--drivers/ata/sata_fsl.c8
-rw-r--r--drivers/ata/sata_svw.c4
5 files changed, 84 insertions, 11 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 48519887f94..be95fdb6972 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -326,6 +326,44 @@ static void ata_force_horkage(struct ata_device *dev)
}
/**
+ * atapi_cmd_type - Determine ATAPI command type from SCSI opcode
+ * @opcode: SCSI opcode
+ *
+ * Determine ATAPI command type from @opcode.
+ *
+ * LOCKING:
+ * None.
+ *
+ * RETURNS:
+ * ATAPI_{READ|WRITE|READ_CD|PASS_THRU|MISC}
+ */
+int atapi_cmd_type(u8 opcode)
+{
+ switch (opcode) {
+ case GPCMD_READ_10:
+ case GPCMD_READ_12:
+ return ATAPI_READ;
+
+ case GPCMD_WRITE_10:
+ case GPCMD_WRITE_12:
+ case GPCMD_WRITE_AND_VERIFY_10:
+ return ATAPI_WRITE;
+
+ case GPCMD_READ_CD:
+ case GPCMD_READ_CD_MSF:
+ return ATAPI_READ_CD;
+
+ case ATA_16:
+ case ATA_12:
+ if (atapi_passthru16)
+ return ATAPI_PASS_THRU;
+ /* fall thru */
+ default:
+ return ATAPI_MISC;
+ }
+}
+
+/**
* ata_tf_to_fis - Convert ATA taskfile to SATA FIS structure
* @tf: Taskfile to convert
* @pmp: Port multiplier port
@@ -2660,7 +2698,7 @@ int ata_bus_probe(struct ata_port *ap)
specific sequence bass-ackwards so that PDIAG- is released by
the slave device */
- ata_link_for_each_dev(dev, &ap->link) {
+ ata_link_for_each_dev_reverse(dev, &ap->link) {
if (tries[dev->devno])
dev->class = classes[dev->devno];
@@ -7774,6 +7812,7 @@ EXPORT_SYMBOL_GPL(ata_tf_read);
EXPORT_SYMBOL_GPL(ata_noop_dev_select);
EXPORT_SYMBOL_GPL(ata_std_dev_select);
EXPORT_SYMBOL_GPL(sata_print_link_status);
+EXPORT_SYMBOL_GPL(atapi_cmd_type);
EXPORT_SYMBOL_GPL(ata_tf_to_fis);
EXPORT_SYMBOL_GPL(ata_tf_from_fis);
EXPORT_SYMBOL_GPL(ata_pack_xfermask);
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index 8786455c901..511a830b625 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -36,6 +36,10 @@
#define DRV_NAME "pata_ali"
#define DRV_VERSION "0.7.5"
+static int ali_atapi_dma = 0;
+module_param_named(atapi_dma, ali_atapi_dma, int, 0644);
+MODULE_PARM_DESC(atapi_dma, "Enable ATAPI DMA (0=disable, 1=enable)");
+
/*
* Cable special cases
*/
@@ -270,6 +274,27 @@ static void ali_set_dmamode(struct ata_port *ap, struct ata_device *adev)
}
/**
+ * ali_warn_atapi_dma - Warn about ATAPI DMA disablement
+ * @adev: Device
+ *
+ * Whine about ATAPI DMA disablement if @adev is an ATAPI device.
+ * Can be used as ->dev_config.
+ */
+
+static void ali_warn_atapi_dma(struct ata_device *adev)
+{
+ struct ata_eh_context *ehc = &adev->link->eh_context;
+ int print_info = ehc->i.flags & ATA_EHI_PRINTINFO;
+
+ if (print_info && adev->class == ATA_DEV_ATAPI && !ali_atapi_dma) {
+ ata_dev_printk(adev, KERN_WARNING,
+ "WARNING: ATAPI DMA disabled for reliablity issues. It can be enabled\n");
+ ata_dev_printk(adev, KERN_WARNING,
+ "WARNING: via pata_ali.atapi_dma modparam or corresponding sysfs node.\n");
+ }
+}
+
+/**
* ali_lock_sectors - Keep older devices to 255 sector mode
* @adev: Device
*
@@ -283,6 +308,7 @@ static void ali_set_dmamode(struct ata_port *ap, struct ata_device *adev)
static void ali_lock_sectors(struct ata_device *adev)
{
adev->max_sectors = 255;
+ ali_warn_atapi_dma(adev);
}
/**
@@ -294,6 +320,18 @@ static void ali_lock_sectors(struct ata_device *adev)
static int ali_check_atapi_dma(struct ata_queued_cmd *qc)
{
+ if (!ali_atapi_dma) {
+ /* FIXME: pata_ali can't do ATAPI DMA reliably but the
+ * IDE alim15x3 driver can. I tried lots of things
+ * but couldn't find what the actual difference was.
+ * If you got an idea, please write it to
+ * linux-ide@vger.kernel.org and cc htejun@gmail.com.
+ *
+ * Disable ATAPI DMA for now.
+ */
+ return -EOPNOTSUPP;
+ }
+
/* If its not a media command, its not worth it */
if (atapi_cmd_type(qc->cdb[0]) == ATAPI_MISC)
return -EOPNOTSUPP;
@@ -359,6 +397,7 @@ static struct ata_port_operations ali_20_port_ops = {
.tf_load = ata_tf_load,
.tf_read = ata_tf_read,
+ .check_atapi_dma = ali_check_atapi_dma,
.check_status = ata_check_status,
.exec_command = ata_exec_command,
.dev_select = ata_std_dev_select,
@@ -438,6 +477,7 @@ static struct ata_port_operations ali_c5_port_ops = {
.check_status = ata_check_status,
.exec_command = ata_exec_command,
.dev_select = ata_std_dev_select,
+ .dev_config = ali_warn_atapi_dma,
.freeze = ata_bmdma_freeze,
.thaw = ata_bmdma_thaw,
diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c
index 3988e44f493..7c5b2dd9a1a 100644
--- a/drivers/ata/pata_sil680.c
+++ b/drivers/ata/pata_sil680.c
@@ -270,7 +270,7 @@ static u8 sil680_init_chip(struct pci_dev *pdev, int *try_mmio)
tmpbyte & 1, tmpbyte & 0x30);
*try_mmio = 0;
-#ifdef CONFIG_PPC
+#ifdef CONFIG_PPC_MERGE
if (machine_is(cell))
*try_mmio = (tmpbyte & 1) || pci_resource_start(pdev, 5);
#endif
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 07791a7a48a..9d1e3cad4aa 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -1256,7 +1256,6 @@ static int sata_fsl_probe(struct of_device *ofdev,
void __iomem *ssr_base = NULL;
void __iomem *csr_base = NULL;
struct sata_fsl_host_priv *host_priv = NULL;
- struct resource *r;
int irq;
struct ata_host *host;
@@ -1266,8 +1265,6 @@ static int sata_fsl_probe(struct of_device *ofdev,
dev_printk(KERN_INFO, &ofdev->dev,
"Sata FSL Platform/CSB Driver init\n");
- r = kmalloc(sizeof(struct resource), GFP_KERNEL);
-
hcr_base = of_iomap(ofdev->node, 0);
if (!hcr_base)
goto error_exit_with_cleanup;
@@ -1348,10 +1345,7 @@ static int sata_fsl_remove(struct of_device *ofdev)
static struct of_device_id fsl_sata_match[] = {
{
- .compatible = "fsl,mpc8315-sata",
- },
- {
- .compatible = "fsl,mpc8379-sata",
+ .compatible = "fsl,pq-sata",
},
{},
};
diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c
index 840d1c4a785..019e367b59f 100644
--- a/drivers/ata/sata_svw.c
+++ b/drivers/ata/sata_svw.c
@@ -531,8 +531,8 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en
* */
static const struct pci_device_id k2_sata_pci_tbl[] = {
{ PCI_VDEVICE(SERVERWORKS, 0x0240), chip_svw4 },
- { PCI_VDEVICE(SERVERWORKS, 0x0241), chip_svw4 },
- { PCI_VDEVICE(SERVERWORKS, 0x0242), chip_svw8 },
+ { PCI_VDEVICE(SERVERWORKS, 0x0241), chip_svw8 },
+ { PCI_VDEVICE(SERVERWORKS, 0x0242), chip_svw4 },
{ PCI_VDEVICE(SERVERWORKS, 0x024a), chip_svw4 },
{ PCI_VDEVICE(SERVERWORKS, 0x024b), chip_svw4 },
{ PCI_VDEVICE(SERVERWORKS, 0x0410), chip_svw42 },
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 01:21:24 +0000