SATA_LINK_HARDRESET(9) libata Library SATA_LINK_HARDRESET(9)NAME
sata_link_hardreset - reset link via SATA phy reset
SYNOPSIS
int sata_link_hardreset(struct ata_link * link,
const unsigned long * timing,
unsigned long deadline, bool * online,
int (*check_ready) (struct ata_link *));
ARGUMENTS
link
link to reset
timing
timing parameters { interval, duratinon, timeout } in msec
deadline
deadline jiffies for the operation
online
optional out parameter indicating link onlineness
check_ready
optional callback to check link readiness
DESCRIPTION
SATA phy-reset link using DET bits of SControl register. After
hardreset, link readiness is waited upon using ata_wait_ready if
check_ready is specified. LLDs are allowed to not specify check_ready
and wait itself after this function returns. Device classification is
LLDĀ“s responsibility.
*online is set to one iff reset succeeded and link is online after
reset.
LOCKING
Kernel thread context (may sleep)
RETURNS
0 on success, -errno otherwise.
AUTHOR
Jeff Garzik
Author.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 SATA_LINK_HARDRESET(9)