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, duration, 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)

RETURN

0 on success, -errno otherwise.

AUTHOR

Jeff Garzik
    Author.

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