diff options
| author | Tejun Heo <htejun@gmail.com> | 2007-08-06 18:36:23 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-12 14:55:31 -0400 |
| commit | 8989805d6d176aa32c0e9a68a536aa4c8ef5231c (patch) | |
| tree | 9111bf6a881ab6c90aac9953b678ab62bb6c2d3b /drivers/ata | |
| parent | dbd826168d6267a26cf20cd233f6730f8d8047d6 (diff) | |
libata-link: add PMP links
Add link->pmp, ap->nr_pmp_links, ap->pmp_link[], and implement/update
link helpers.
printk helpers are updated such that port and link are identifed as
'ataP:' if no PMP is attached, while device is identified as
'ataP.DD:'. If PMP is attached, they become 'ataP:', 'ataP.LL:' and
'ataP.LL' - ie. link and device are identified their PMP number.
If PPM is attached (ap->nr_pmp_links != 0), ata_for_each_link()
iterates over PMP links, while __ata_for_each_link() iterates over the
host link + PMP links. If PMP is not attached (ap->nr_pmp_links ==
0), both iterate over only the host link.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-core.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index dcae590cc9b..af9c0ab600d 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6064,13 +6064,14 @@ void ata_dev_init(struct ata_device *dev) * ata_link_init - Initialize an ata_link structure * @ap: ATA port link is attached to * @link: Link structure to initialize + * @pmp: Port multiplier port number * * Initialize @link. * * LOCKING: * Kernel thread context (may sleep) */ -static void ata_link_init(struct ata_port *ap, struct ata_link *link) +static void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp) { int i; @@ -6078,6 +6079,7 @@ static void ata_link_init(struct ata_port *ap, struct ata_link *link) memset(link, 0, offsetof(struct ata_link, device[0])); link->ap = ap; + link->pmp = pmp; link->active_tag = ATA_TAG_POISON; link->hw_sata_spd_limit = UINT_MAX; @@ -6173,7 +6175,7 @@ struct ata_port *ata_port_alloc(struct ata_host *host) ap->cbl = ATA_CBL_NONE; - ata_link_init(ap, &ap->link); + ata_link_init(ap, &ap->link, 0); #ifdef ATA_IRQ_TRAP ap->stats.unhandled_irq = 1; |