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path: root/drivers/scsi/ahci.c
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Diffstat (limited to 'drivers/scsi/ahci.c')
-rw-r--r--drivers/scsi/ahci.c78
1 files changed, 44 insertions, 34 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index c2c8fa828e24..e2a5657d5fdb 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -41,6 +41,7 @@
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/dma-mapping.h>
+#include <linux/device.h>
#include "scsi.h"
#include <scsi/scsi_host.h>
#include <linux/libata.h>
@@ -192,7 +193,6 @@ static void ahci_port_stop(struct ata_port *ap);
static void ahci_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
static void ahci_qc_prep(struct ata_queued_cmd *qc);
static u8 ahci_check_status(struct ata_port *ap);
-static u8 ahci_check_err(struct ata_port *ap);
static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
static void ahci_remove_one (struct pci_dev *pdev);
@@ -216,12 +216,11 @@ static Scsi_Host_Template ahci_sht = {
.ordered_flush = 1,
};
-static struct ata_port_operations ahci_ops = {
+static const struct ata_port_operations ahci_ops = {
.port_disable = ata_port_disable,
.check_status = ahci_check_status,
.check_altstatus = ahci_check_status,
- .check_err = ahci_check_err,
.dev_select = ata_noop_dev_select,
.tf_read = ahci_tf_read,
@@ -407,7 +406,7 @@ static u32 ahci_scr_read (struct ata_port *ap, unsigned int sc_reg_in)
return 0xffffffffU;
}
- return readl((void *) ap->ioaddr.scr_addr + (sc_reg * 4));
+ return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
}
@@ -425,7 +424,7 @@ static void ahci_scr_write (struct ata_port *ap, unsigned int sc_reg_in,
return;
}
- writel(val, (void *) ap->ioaddr.scr_addr + (sc_reg * 4));
+ writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
}
static void ahci_phy_reset(struct ata_port *ap)
@@ -453,18 +452,11 @@ static void ahci_phy_reset(struct ata_port *ap)
static u8 ahci_check_status(struct ata_port *ap)
{
- void *mmio = (void *) ap->ioaddr.cmd_addr;
+ void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr;
return readl(mmio + PORT_TFDATA) & 0xFF;
}
-static u8 ahci_check_err(struct ata_port *ap)
-{
- void *mmio = (void *) ap->ioaddr.cmd_addr;
-
- return (readl(mmio + PORT_TFDATA) >> 8) & 0xFF;
-}
-
static void ahci_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
{
struct ahci_port_priv *pp = ap->private_data;
@@ -609,7 +601,7 @@ static void ahci_eng_timeout(struct ata_port *ap)
* not being called from the SCSI EH.
*/
qc->scsidone = scsi_finish_command;
- ata_qc_complete(qc, ATA_ERR);
+ ata_qc_complete(qc, AC_ERR_OTHER);
}
spin_unlock_irqrestore(&host_set->lock, flags);
@@ -638,7 +630,7 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
if (status & PORT_IRQ_FATAL) {
ahci_intr_error(ap, status);
if (qc)
- ata_qc_complete(qc, ATA_ERR);
+ ata_qc_complete(qc, AC_ERR_OTHER);
}
return 1;
@@ -672,17 +664,35 @@ static irqreturn_t ahci_interrupt (int irq, void *dev_instance, struct pt_regs *
for (i = 0; i < host_set->n_ports; i++) {
struct ata_port *ap;
- u32 tmp;
- VPRINTK("port %u\n", i);
+ if (!(irq_stat & (1 << i)))
+ continue;
+
ap = host_set->ports[i];
- tmp = irq_stat & (1 << i);
- if (tmp && ap) {
+ if (ap) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
- if (ahci_host_intr(ap, qc))
- irq_ack |= (1 << i);
+ if (!ahci_host_intr(ap, qc))
+ if (ata_ratelimit()) {
+ struct pci_dev *pdev =
+ to_pci_dev(ap->host_set->dev);
+ dev_printk(KERN_WARNING, &pdev->dev,
+ "unhandled interrupt on port %u\n",
+ i);
+ }
+
+ VPRINTK("port %u\n", i);
+ } else {
+ VPRINTK("port %u (no irq)\n", i);
+ if (ata_ratelimit()) {
+ struct pci_dev *pdev =
+ to_pci_dev(ap->host_set->dev);
+ dev_printk(KERN_WARNING, &pdev->dev,
+ "interrupt on disabled port %u\n", i);
+ }
}
+
+ irq_ack |= (1 << i);
}
if (irq_ack) {
@@ -750,8 +760,8 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent)
tmp = readl(mmio + HOST_CTL);
if (tmp & HOST_RESET) {
- printk(KERN_ERR DRV_NAME "(%s): controller reset failed (0x%x)\n",
- pci_name(pdev), tmp);
+ dev_printk(KERN_ERR, &pdev->dev,
+ "controller reset failed (0x%x)\n", tmp);
return -EIO;
}
@@ -779,22 +789,22 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent)
if (rc) {
rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
if (rc) {
- printk(KERN_ERR DRV_NAME "(%s): 64-bit DMA enable failed\n",
- pci_name(pdev));
+ dev_printk(KERN_ERR, &pdev->dev,
+ "64-bit DMA enable failed\n");
return rc;
}
}
} else {
rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
if (rc) {
- printk(KERN_ERR DRV_NAME "(%s): 32-bit DMA enable failed\n",
- pci_name(pdev));
+ dev_printk(KERN_ERR, &pdev->dev,
+ "32-bit DMA enable failed\n");
return rc;
}
rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
if (rc) {
- printk(KERN_ERR DRV_NAME "(%s): 32-bit consistent DMA enable failed\n",
- pci_name(pdev));
+ dev_printk(KERN_ERR, &pdev->dev,
+ "32-bit consistent DMA enable failed\n");
return rc;
}
}
@@ -897,10 +907,10 @@ static void ahci_print_info(struct ata_probe_ent *probe_ent)
else
scc_s = "unknown";
- printk(KERN_INFO DRV_NAME "(%s) AHCI %02x%02x.%02x%02x "
+ dev_printk(KERN_INFO, &pdev->dev,
+ "AHCI %02x%02x.%02x%02x "
"%u slots %u ports %s Gbps 0x%x impl %s mode\n"
,
- pci_name(pdev),
(vers >> 24) & 0xff,
(vers >> 16) & 0xff,
@@ -913,11 +923,11 @@ static void ahci_print_info(struct ata_probe_ent *probe_ent)
impl,
scc_s);
- printk(KERN_INFO DRV_NAME "(%s) flags: "
+ dev_printk(KERN_INFO, &pdev->dev,
+ "flags: "
"%s%s%s%s%s%s"
"%s%s%s%s%s%s%s\n"
,
- pci_name(pdev),
cap & (1 << 31) ? "64bit " : "",
cap & (1 << 30) ? "ncq " : "",
@@ -950,7 +960,7 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
VPRINTK("ENTER\n");
if (!printed_version++)
- printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+ dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
rc = pci_enable_device(pdev);
if (rc)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 18:05:36 +0000