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libata-link: linkify reset

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Make reset methods and related functions deal with ata_link instead of
ata_port.

* ata_do_reset()
* ata_eh_reset()
* all prereset/reset/postreset methods and related functions

This patch introduces no behavior change.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo
2007-08-06 18:36:23 +09:00
committed by Jeff Garzik
parent 955e57dfde
commit cc0680a580
31 changed files with 203 additions and 171 deletions
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34
drivers/ata/ahci.c
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@@ -1042,9 +1042,10 @@ static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
return 0;
}
static int ahci_do_softreset(struct ata_port *ap, unsigned int *class,
static int ahci_do_softreset(struct ata_link *link, unsigned int *class,
int pmp, unsigned long deadline)
{
struct ata_port *ap = link->ap;
const char *reason = NULL;
unsigned long now, msecs;
struct ata_taskfile tf;
@@ -1052,7 +1053,7 @@ static int ahci_do_softreset(struct ata_port *ap, unsigned int *class,
DPRINTK("ENTER\n");
if (ata_link_offline(&ap->link)) {
if (ata_link_offline(link)) {
DPRINTK("PHY reports no device\n");
*class = ATA_DEV_NONE;
return 0;
@@ -1061,10 +1062,10 @@ static int ahci_do_softreset(struct ata_port *ap, unsigned int *class,
/* prepare for SRST (AHCI-1.1 10.4.1) */
rc = ahci_kick_engine(ap, 1);
if (rc)
ata_port_printk(ap, KERN_WARNING,
ata_link_printk(link, KERN_WARNING,
"failed to reset engine (errno=%d)", rc);
ata_tf_init(ap->link.device, &tf);
ata_tf_init(link->device, &tf);
/* issue the first D2H Register FIS */
msecs = 0;
@@ -1109,19 +1110,20 @@ static int ahci_do_softreset(struct ata_port *ap, unsigned int *class,
return 0;
fail:
ata_port_printk(ap, KERN_ERR, "softreset failed (%s)\n", reason);
ata_link_printk(link, KERN_ERR, "softreset failed (%s)\n", reason);
return rc;
}
static int ahci_softreset(struct ata_port *ap, unsigned int *class,
static int ahci_softreset(struct ata_link *link, unsigned int *class,
unsigned long deadline)
{
return ahci_do_softreset(ap, class, 0, deadline);
return ahci_do_softreset(link, class, 0, deadline);
}
static int ahci_hardreset(struct ata_port *ap, unsigned int *class,
static int ahci_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline)
{
struct ata_port *ap = link->ap;
struct ahci_port_priv *pp = ap->private_data;
u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;
struct ata_taskfile tf;
@@ -1132,15 +1134,15 @@ static int ahci_hardreset(struct ata_port *ap, unsigned int *class,
ahci_stop_engine(ap);
/* clear D2H reception area to properly wait for D2H FIS */
ata_tf_init(ap->link.device, &tf);
ata_tf_init(link->device, &tf);
tf.command = 0x80;
ata_tf_to_fis(&tf, 0, 0, d2h_fis);
rc = sata_std_hardreset(ap, class, deadline);
rc = sata_std_hardreset(link, class, deadline);
ahci_start_engine(ap);
if (rc == 0 && ata_link_online(&ap->link))
if (rc == 0 && ata_link_online(link))
*class = ahci_dev_classify(ap);
if (*class == ATA_DEV_UNKNOWN)
*class = ATA_DEV_NONE;
@@ -1149,9 +1151,10 @@ static int ahci_hardreset(struct ata_port *ap, unsigned int *class,
return rc;
}
static int ahci_vt8251_hardreset(struct ata_port *ap, unsigned int *class,
static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline)
{
struct ata_port *ap = link->ap;
u32 serror;
int rc;
@@ -1159,7 +1162,7 @@ static int ahci_vt8251_hardreset(struct ata_port *ap, unsigned int *class,
ahci_stop_engine(ap);
rc = sata_port_hardreset(ap, sata_ehc_deb_timing(&ap->link.eh_context),
rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
deadline);
/* vt8251 needs SError cleared for the port to operate */
@@ -1176,12 +1179,13 @@ static int ahci_vt8251_hardreset(struct ata_port *ap, unsigned int *class,
return rc ?: -EAGAIN;
}
static void ahci_postreset(struct ata_port *ap, unsigned int *class)
static void ahci_postreset(struct ata_link *link, unsigned int *class)
{
struct ata_port *ap = link->ap;
void __iomem *port_mmio = ahci_port_base(ap);
u32 new_tmp, tmp;
ata_std_postreset(ap, class);
ata_std_postreset(link, class);
/* Make sure port's ATAPI bit is set appropriately */
new_tmp = tmp = readl(port_mmio + PORT_CMD);