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, 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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                    SATA_LINK_HARDRESET(9)