[patch] fusion_mptbase.patch

fusion_mptbase.patch (text/plain), 950 bytes, created by Maarten Bressers (RETIRED) on 2007-07-27 20:28:47 UTC

--- drivers/message/fusion/mptbase.c.orig	2007-07-27 22:17:41.000000000 +0200
+++ drivers/message/fusion/mptbase.c	2007-07-27 22:24:54.000000000 +0200
@@ -2567,6 +2567,16 @@
 	pfacts->IOCStatus = le16_to_cpu(pfacts->IOCStatus);
 	pfacts->IOCLogInfo = le32_to_cpu(pfacts->IOCLogInfo);
 	pfacts->MaxDevices = le16_to_cpu(pfacts->MaxDevices);
+	/*
+	* VMware emulation is broken, its PortFact's MaxDevices reports value
+	* programmed by IOC Init, so if you program IOC Init to 256 (which is 0,
+	* as that field is only 8 bit), it reports back 0 in port facts, instead
+	* of 256... And unfortunately using 256 triggers another bug in the
+	* code (parallel SCSI can have only 16 devices).
+	*/
+	if (pfacts->MaxDevices == 0) {
+		pfacts->MaxDevices = 16;
+	}
 	pfacts->PortSCSIID = le16_to_cpu(pfacts->PortSCSIID);
 	pfacts->ProtocolFlags = le16_to_cpu(pfacts->ProtocolFlags);
 	pfacts->MaxPostedCmdBuffers = le16_to_cpu(pfacts->MaxPostedCmdBuffers);