SATA_LINK_HARDRESET

Section: libata Library (9)
Updated: February 2011
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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 LLD'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.