Commit 2695e366 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
Browse files

libata-pmp: propagate timeout to host link 



Timeout on downstream command may indicate transmission problem on
host link.  Propagate timeouts to host link.

Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 8048307d

drivers/ata/libata-eh.c

+15 −5
Original line number Diff line number Diff line
@@ -1733,10 +1733,14 @@ static void ata_eh_link_autopsy(struct ata_link *link) 
		ehc->i.action &= ~ATA_EH_PERDEV_MASK;

	}



	/* consider speeding down */

	/* propagate timeout to host link */

	if ((all_err_mask & AC_ERR_TIMEOUT) && !ata_is_host_link(link))

		ap->link.eh_context.i.err_mask |= AC_ERR_TIMEOUT;



	/* record error and consider speeding down */

	dev = ehc->i.dev;

	if (!dev && ata_link_max_devices(link) == 1 &&

	    ata_dev_enabled(link->device))

	if (!dev && ((ata_link_max_devices(link) == 1 &&

		      ata_dev_enabled(link->device))))

	    dev = link->device;



	if (dev)
@@ -1759,8 +1763,14 @@ void ata_eh_autopsy(struct ata_port *ap) 
{

	struct ata_link *link;



	__ata_port_for_each_link(link, ap)

	ata_port_for_each_link(link, ap)

		ata_eh_link_autopsy(link);



	/* Autopsy of fanout ports can affect host link autopsy.

	 * Perform host link autopsy last.

	 */

	if (ap->nr_pmp_links)

		ata_eh_link_autopsy(&ap->link);

}



/**