libata-link: linkify config/EH related functions

Make the following functions deal with ata_link instead of ata_port.

* ata_set_mode()
* ata_eh_autopsy() and related functions
* ata_eh_report() and related functions
* suspend/resume related functions
* ata_eh_recover() and related functions
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/ata_generic.c

@@ -34,7 +34,7 @@
 
 /**
  *	generic_set_mode	-	mode setting
- *	@ap: interface to set up
+ *	@link: link to set up
  *	@unused: returned device on error
  *
  *	Use a non standard set_mode function. We don't want to be tuned.
@@ -43,8 +43,9 @@
  *	and respect them.
  */
 
-static int generic_set_mode(struct ata_port *ap, struct ata_device **unused)
+static int generic_set_mode(struct ata_link *link, struct ata_device **unused)
 {
+	struct ata_port *ap = link->ap;
 	int dma_enabled = 0;
 	struct ata_device *dev;
 
@@ -52,7 +53,7 @@ static int generic_set_mode(struct ata_port *ap, struct ata_device **unused)
 	if (ap->ioaddr.bmdma_addr)
 		dma_enabled = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
 
-	ata_link_for_each_dev(dev, &ap->link) {
+	ata_link_for_each_dev(dev, link) {
 		if (ata_dev_enabled(dev)) {
 			/* We don't really care */
 			dev->pio_mode = XFER_PIO_0;

drivers/ata/libata-core.c

@@ -2171,7 +2171,7 @@ int ata_bus_probe(struct ata_port *ap)
 	}
 
 	/* configure transfer mode */
-	rc = ata_set_mode(ap, &dev);
+	rc = ata_set_mode(&ap->link, &dev);
 	if (rc)
 		goto fail;
 
@@ -2782,7 +2782,7 @@ static int ata_dev_set_mode(struct ata_device *dev)
 
 /**
  *	ata_do_set_mode - Program timings and issue SET FEATURES - XFER
- *	@ap: port on which timings will be programmed
+ *	@link: link on which timings will be programmed
  *	@r_failed_dev: out paramter for failed device
  *
  *	Standard implementation of the function used to tune and set
@@ -2797,9 +2797,9 @@ static int ata_dev_set_mode(struct ata_device *dev)
  *	0 on success, negative errno otherwise
  */
 
-int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
+int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
 {
-	struct ata_link *link = &ap->link;
+	struct ata_port *ap = link->ap;
 	struct ata_device *dev;
 	int rc = 0, used_dma = 0, found = 0;
 
@@ -2877,7 +2877,7 @@ int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
 
 /**
  *	ata_set_mode - Program timings and issue SET FEATURES - XFER
- *	@ap: port on which timings will be programmed
+ *	@link: link on which timings will be programmed
  *	@r_failed_dev: out paramter for failed device
  *
  *	Set ATA device disk transfer mode (PIO3, UDMA6, etc.).  If
@@ -2890,12 +2890,14 @@ int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
  *	RETURNS:
  *	0 on success, negative errno otherwise
  */
-int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
+int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
 {
+	struct ata_port *ap = link->ap;
+
 	/* has private set_mode? */
 	if (ap->ops->set_mode)
-		return ap->ops->set_mode(ap, r_failed_dev);
-	return ata_do_set_mode(ap, r_failed_dev);
+		return ap->ops->set_mode(link, r_failed_dev);
+	return ata_do_set_mode(link, r_failed_dev);
 }
 
 /**

drivers/ata/libata.h

@@ -81,7 +81,7 @@ extern int ata_dev_configure(struct ata_device *dev);
 extern int sata_down_spd_limit(struct ata_link *link);
 extern int sata_set_spd_needed(struct ata_link *link);
 extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel);
-extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev);
+extern int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
 extern void ata_sg_clean(struct ata_queued_cmd *qc);
 extern void ata_qc_free(struct ata_queued_cmd *qc);
 extern void ata_qc_issue(struct ata_queued_cmd *qc);

drivers/ata/pata_it821x.c

@@ -450,7 +450,7 @@ static unsigned int it821x_passthru_qc_issue_prot(struct ata_queued_cmd *qc)
 
 /**
  *	it821x_smart_set_mode	-	mode setting
- *	@ap: interface to set up
+ *	@link: interface to set up
  *	@unused: device that failed (error only)
  *
  *	Use a non standard set_mode function. We don't want to be tuned.
@@ -459,11 +459,11 @@ static unsigned int it821x_passthru_qc_issue_prot(struct ata_queued_cmd *qc)
  *	and respect them.
  */
 
-static int it821x_smart_set_mode(struct ata_port *ap, struct ata_device **unused)
+static int it821x_smart_set_mode(struct ata_link *link, struct ata_device **unused)
 {
 	struct ata_device *dev;
 
-	ata_link_for_each_dev(dev, &ap->link) {
+	ata_link_for_each_dev(dev, link) {
 		if (ata_dev_enabled(dev)) {
 			/* We don't really care */
 			dev->pio_mode = XFER_PIO_0;

drivers/ata/pata_ixp4xx_cf.c

@@ -26,11 +26,11 @@
 #define DRV_NAME	"pata_ixp4xx_cf"
 #define DRV_VERSION	"0.2"
 
-static int ixp4xx_set_mode(struct ata_port *ap, struct ata_device **error)
+static int ixp4xx_set_mode(struct ata_link *link, struct ata_device **error)
 {
 	struct ata_device *dev;
 
-	ata_link_for_each_dev(dev, &ap->link) {
+	ata_link_for_each_dev(dev, link) {
 		if (ata_dev_enabled(dev)) {
 			ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
 			dev->pio_mode = XFER_PIO_0;

drivers/ata/pata_legacy.c

@@ -96,7 +96,7 @@ static int iordy_mask = 0xFFFFFFFF;	/* Use iordy if available */
 
 /**
  *	legacy_set_mode		-	mode setting
- *	@ap: IDE interface
+ *	@link: IDE link
  *	@unused: Device that failed when error is returned
  *
  *	Use a non standard set_mode function. We don't want to be tuned.
@@ -107,11 +107,11 @@ static int iordy_mask = 0xFFFFFFFF;	/* Use iordy if available */
  *	expand on this as per hdparm in the base kernel.
  */
 
-static int legacy_set_mode(struct ata_port *ap, struct ata_device **unused)
+static int legacy_set_mode(struct ata_link *link, struct ata_device **unused)
 {
 	struct ata_device *dev;
 
-	ata_link_for_each_dev(dev, &ap->link) {
+	ata_link_for_each_dev(dev, link) {
 		if (ata_dev_enabled(dev)) {
 			ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
 			dev->pio_mode = XFER_PIO_0;

drivers/ata/pata_optidma.c

@@ -324,25 +324,26 @@ static u8 optidma_make_bits43(struct ata_device *adev)
 
 /**
  *	optidma_set_mode	-	mode setup
- *	@ap: port to set up
+ *	@link: link to set up
  *
  *	Use the standard setup to tune the chipset and then finalise the
  *	configuration by writing the nibble of extra bits of data into
  *	the chip.
  */
 
-static int optidma_set_mode(struct ata_port *ap, struct ata_device **r_failed)
+static int optidma_set_mode(struct ata_link *link, struct ata_device **r_failed)
 {
+	struct ata_port *ap = link->ap;
 	u8 r;
 	int nybble = 4 * ap->port_no;
 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
-	int rc  = ata_do_set_mode(ap, r_failed);
+	int rc  = ata_do_set_mode(link, r_failed);
 	if (rc == 0) {
 		pci_read_config_byte(pdev, 0x43, &r);
 
 		r &= (0x0F << nybble);
-		r |= (optidma_make_bits43(&ap->link.device[0]) +
-		     (optidma_make_bits43(&ap->link.device[0]) << 2)) << nybble;
+		r |= (optidma_make_bits43(&link->device[0]) +
+		     (optidma_make_bits43(&link->device[0]) << 2)) << nybble;
 		pci_write_config_byte(pdev, 0x43, r);
 	}
 	return rc;

drivers/ata/pata_pcmcia.c

@@ -56,7 +56,7 @@ struct ata_pcmcia_info {
 
 /**
  *	pcmcia_set_mode	-	PCMCIA specific mode setup
- *	@ap: Port
+ *	@link: link
  *	@r_failed_dev: Return pointer for failed device
  *
  *	Perform the tuning and setup of the devices and timings, which
@@ -65,13 +65,13 @@ struct ata_pcmcia_info {
  *	decode, which alas is embarrassingly common in the PC world
  */
 
-static int pcmcia_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
+static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
 {
-	struct ata_device *master = &ap->link.device[0];
-	struct ata_device *slave = &ap->link.device[1];
+	struct ata_device *master = &link->device[0];
+	struct ata_device *slave = &link->device[1];
 
 	if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
-		return ata_do_set_mode(ap, r_failed_dev);
+		return ata_do_set_mode(link, r_failed_dev);
 
 	if (memcmp(master->id + ATA_ID_FW_REV,  slave->id + ATA_ID_FW_REV,
 			   ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0)
@@ -84,7 +84,7 @@ static int pcmcia_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev
 			ata_dev_disable(slave);
 		}
 	}
-	return ata_do_set_mode(ap, r_failed_dev);
+	return ata_do_set_mode(link, r_failed_dev);
 }
 
 static struct scsi_host_template pcmcia_sht = {

drivers/ata/pata_pdc2027x.c

@@ -69,7 +69,7 @@ static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev);
 static int pdc2027x_check_atapi_dma(struct ata_queued_cmd *qc);
 static unsigned long pdc2027x_mode_filter(struct ata_device *adev, unsigned long mask);
 static int pdc2027x_cable_detect(struct ata_port *ap);
-static int pdc2027x_set_mode(struct ata_port *ap, struct ata_device **r_failed);
+static int pdc2027x_set_mode(struct ata_link *link, struct ata_device **r_failed);
 
 /*
  * ATA Timing Tables based on 133MHz controller clock.
@@ -470,23 +470,24 @@ static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 
 /**
  *	pdc2027x_set_mode - Set the timing registers back to correct values.
- *	@ap: Port to configure
+ *	@link: link to configure
  *	@r_failed: Returned device for failure
  *
  *	The pdc2027x hardware will look at "SET FEATURES" and change the timing registers
  *	automatically. The values set by the hardware might be incorrect, under 133Mhz PLL.
  *	This function overwrites the possibly incorrect values set by the hardware to be correct.
  */
-static int pdc2027x_set_mode(struct ata_port *ap, struct ata_device **r_failed)
+static int pdc2027x_set_mode(struct ata_link *link, struct ata_device **r_failed)
 {
+	struct ata_port *ap = link->ap;
 	struct ata_device *dev;
 	int rc;
 
-	rc = ata_do_set_mode(ap, r_failed);
+	rc = ata_do_set_mode(link, r_failed);
 	if (rc < 0)
 		return rc;
 
-	ata_link_for_each_dev(dev, &ap->link) {
+	ata_link_for_each_dev(dev, link) {
 		if (ata_dev_enabled(dev)) {
 
 			pdc2027x_set_piomode(ap, dev);

drivers/ata/pata_platform.c

@@ -30,11 +30,11 @@ static int pio_mask = 1;
  * Provide our own set_mode() as we don't want to change anything that has
  * already been configured..
  */
-static int pata_platform_set_mode(struct ata_port *ap, struct ata_device **unused)
+static int pata_platform_set_mode(struct ata_link *link, struct ata_device **unused)
 {
 	struct ata_device *dev;
 
-	ata_link_for_each_dev(dev, &ap->link) {
+	ata_link_for_each_dev(dev, link) {
 		if (ata_dev_enabled(dev)) {
 			/* We don't really care */
 			dev->pio_mode = dev->xfer_mode = XFER_PIO_0;

drivers/ata/pata_rz1000.c

@@ -26,7 +26,7 @@
 
 /**
  *	rz1000_set_mode		-	mode setting function
- *	@ap: ATA interface
+ *	@link: ATA link
  *	@unused: returned device on set_mode failure
  *
  *	Use a non standard set_mode function. We don't want to be tuned. We
@@ -34,11 +34,11 @@
  *	whacked out.
  */
 
-static int rz1000_set_mode(struct ata_port *ap, struct ata_device **unused)
+static int rz1000_set_mode(struct ata_link *link, struct ata_device **unused)
 {
 	struct ata_device *dev;
 
-	ata_link_for_each_dev(dev, &ap->link) {
+	ata_link_for_each_dev(dev, link) {
 		if (ata_dev_enabled(dev)) {
 			/* We don't really care */
 			dev->pio_mode = XFER_PIO_0;

drivers/ata/pdc_adma.c

@@ -297,15 +297,16 @@ static void adma_thaw(struct ata_port *ap)
 	adma_reinit_engine(ap);
 }
 
-static int adma_prereset(struct ata_port *ap, unsigned long deadline)
+static int adma_prereset(struct ata_link *link, unsigned long deadline)
 {
+	struct ata_port *ap = link->ap;
 	struct adma_port_priv *pp = ap->private_data;
 
 	if (pp->state != adma_state_idle) /* healthy paranoia */
 		pp->state = adma_state_mmio;
 	adma_reinit_engine(ap);
 
-	return ata_std_prereset(ap, deadline);
+	return ata_std_prereset(link, deadline);
 }
 
 static void adma_error_handler(struct ata_port *ap)

drivers/ata/sata_sil.c

@@ -117,7 +117,7 @@ static int sil_pci_device_resume(struct pci_dev *pdev);
 static void sil_dev_config(struct ata_device *dev);
 static int sil_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val);
 static int sil_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val);
-static int sil_set_mode (struct ata_port *ap, struct ata_device **r_failed);
+static int sil_set_mode(struct ata_link *link, struct ata_device **r_failed);
 static void sil_freeze(struct ata_port *ap);
 static void sil_thaw(struct ata_port *ap);
 
@@ -290,27 +290,27 @@ static unsigned char sil_get_device_cache_line(struct pci_dev *pdev)
 
 /**
  *	sil_set_mode		-	wrap set_mode functions
- *	@ap: port to set up
+ *	@link: link to set up
  *	@r_failed: returned device when we fail
  *
  *	Wrap the libata method for device setup as after the setup we need
  *	to inspect the results and do some configuration work
  */
 
-static int sil_set_mode (struct ata_port *ap, struct ata_device **r_failed)
+static int sil_set_mode(struct ata_link *link, struct ata_device **r_failed)
 {
-	struct ata_host *host = ap->host;
-	struct ata_device *dev;
-	void __iomem *mmio_base = host->iomap[SIL_MMIO_BAR];
+	struct ata_port *ap = link->ap;
+	void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
 	void __iomem *addr = mmio_base + sil_port[ap->port_no].xfer_mode;
+	struct ata_device *dev;
 	u32 tmp, dev_mode[2] = { };
 	int rc;
 
-	rc = ata_do_set_mode(ap, r_failed);
+	rc = ata_do_set_mode(link, r_failed);
 	if (rc)
 		return rc;
 
-	ata_link_for_each_dev(dev, &ap->link) {
+	ata_link_for_each_dev(dev, link) {
 		if (!ata_dev_enabled(dev))
 			dev_mode[dev->devno] = 0;	/* PIO0/1/2 */
 		else if (dev->flags & ATA_DFLAG_PIO)

include/linux/libata.h

@@ -607,7 +607,7 @@ struct ata_port_operations {
 	void (*dev_select)(struct ata_port *ap, unsigned int device);
 
 	void (*phy_reset) (struct ata_port *ap); /* obsolete */
-	int  (*set_mode) (struct ata_port *ap, struct ata_device **r_failed_dev);
+	int  (*set_mode) (struct ata_link *link, struct ata_device **r_failed_dev);
 
 	int (*cable_detect) (struct ata_port *ap);
 
@@ -838,7 +838,7 @@ extern void ata_scsi_slave_destroy(struct scsi_device *sdev);
 extern int ata_scsi_change_queue_depth(struct scsi_device *sdev,
 				       int queue_depth);
 extern struct ata_device *ata_dev_pair(struct ata_device *adev);
-extern int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev);
+extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
 extern u8 ata_irq_on(struct ata_port *ap);
 extern u8 ata_dummy_irq_on(struct ata_port *ap);
 extern u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq);