Commit fd0527ab authored by Jeff Skirvin's avatar Jeff Skirvin Committed by Dan Williams
Browse files

isci: Hard reset failure will link reset all phys in the port 



In the case where the hard reset process fails, each link in
the port is put through a link reset sequence.

Signed-off-by: default avatarJeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent fd536601

drivers/scsi/isci/port.c

+17 −5
Original line number Diff line number Diff line
@@ -1916,7 +1916,7 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor 
{

	unsigned long flags;

	enum sci_status status;

	int ret = TMF_RESP_FUNC_COMPLETE;

	int idx, ret = TMF_RESP_FUNC_COMPLETE;



	dev_dbg(&ihost->pdev->dev, "%s: iport = %p\n",

		__func__, iport);
@@ -1953,14 +1953,26 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor 
	 * the same as link failures on all phys in the port.

	 */

	if (ret != TMF_RESP_FUNC_COMPLETE) {



		dev_err(&ihost->pdev->dev,

			"%s: iport = %p; hard reset failed "

			"(0x%x) - sending link down to libsas for phy %p\n",

			__func__, iport, iport->hard_reset_status, iphy);

			"(0x%x) - driving explicit link fail for all phys\n",

			__func__, iport, iport->hard_reset_status);



		isci_port_link_down(ihost, iphy, iport);

	}

		/* Down all phys in the port. */

		spin_lock_irqsave(&ihost->scic_lock, flags);

		for (idx = 0; idx < SCI_MAX_PHYS; ++idx) {



			if (iport->sci.phy_table[idx] != NULL) {



				scic_sds_phy_stop(

					iport->sci.phy_table[idx]);

				scic_sds_phy_start(

					iport->sci.phy_table[idx]);

			}

		}

		spin_unlock_irqrestore(&ihost->scic_lock, flags);

	}

	return ret;

}