From: James Bottomley <James.Bottomley@steeleye.com>
Date: Wed, 12 Jul 2006 13:51:04 +0000 (-0400)
Subject: [SCSI] mptsas: add parent port backlink
X-Git-Tag: v2.6.19-rc1~1266^2~19^2~75
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c269e6d3c615403a6e0acbe6e88f1c0da9c2396;p=linux-2.6

[SCSI] mptsas: add parent port backlink

This takes advantage of the sas class backlink function to show which
port on an expander is used to communicate with the parent.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index f66f220314..dfdd1e4457 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1642,14 +1642,18 @@ static int mptsas_probe_one_phy(struct device *dev,
 
 			for (i = 0; i < port_info->num_phys; i++)
 				if (port_info->phy_info[i].identify.sas_address ==
-				    identify.sas_address)
+				    identify.sas_address) {
+					sas_port_mark_backlink(port);
 					goto out;
+				}
 
 		} else if (scsi_is_sas_rphy(parent)) {
 			struct sas_rphy *parent_rphy = dev_to_rphy(parent);
 			if (identify.sas_address ==
-			    parent_rphy->identify.sas_address)
+			    parent_rphy->identify.sas_address) {
+				sas_port_mark_backlink(port);
 				goto out;
+			}
 		}
 
 		switch (identify.device_type) {