Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / drivers / infiniband / hw / ipath / ipath_eeprom.c

diff --git a/drivers/infiniband/hw/ipath/ipath_eeprom.c b/drivers/infiniband/hw/ipath/ipath_eeprom.c
index a2f1cea..3313356 100644 (file)
--- a/drivers/infiniband/hw/ipath/ipath_eeprom.c
+++ b/drivers/infiniband/hw/ipath/ipath_eeprom.c
@@ -1,4 +1,5 @@
 /*
+ * Copyright (c) 2006 QLogic, Inc. All rights reserved.
  * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
  *
  * This software is available to you under a choice of one of two
@@ -600,8 +601,31 @@ void ipath_get_eeprom_info(struct ipath_devdata *dd)
                guid = *(__be64 *) ifp->if_guid;
        dd->ipath_guid = guid;
        dd->ipath_nguid = ifp->if_numguid;
-       memcpy(dd->ipath_serial, ifp->if_serial,
-              sizeof(ifp->if_serial));
+       /*
+        * Things are slightly complicated by the desire to transparently
+        * support both the Pathscale 10-digit serial number and the QLogic
+        * 13-character version.
+        */
+       if ((ifp->if_fversion > 1) && ifp->if_sprefix[0]
+               && ((u8 *)ifp->if_sprefix)[0] != 0xFF) {
+               /* This board has a Serial-prefix, which is stored
+                * elsewhere for backward-compatibility.
+                */
+               char *snp = dd->ipath_serial;
+               int len;
+               memcpy(snp, ifp->if_sprefix, sizeof ifp->if_sprefix);
+               snp[sizeof ifp->if_sprefix] = '\0';
+               len = strlen(snp);
+               snp += len;
+               len = (sizeof dd->ipath_serial) - len;
+               if (len > sizeof ifp->if_serial) {
+                       len = sizeof ifp->if_serial;
+               }
+               memcpy(snp, ifp->if_serial, len);
+       } else
+               memcpy(dd->ipath_serial, ifp->if_serial,
+                      sizeof ifp->if_serial);
+
        ipath_cdbg(VERBOSE, "Initted GUID to %llx from eeprom\n",
                   (unsigned long long) be64_to_cpu(dd->ipath_guid));