diff options
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_eeprom.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_eeprom.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_eeprom.c b/drivers/infiniband/hw/ipath/ipath_eeprom.c index f086e336045..3313356ab93 100644 --- a/drivers/infiniband/hw/ipath/ipath_eeprom.c +++ b/drivers/infiniband/hw/ipath/ipath_eeprom.c @@ -601,8 +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)); |