sata_link_hardreset (9) Linux Manual Page
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.