[SCSI] megaraid_sas: addded support for big endian architecture
This patch will add big endian architecture support to megaraid_sas
driver. The support added is for LSI MegaRAID all generation controllers-
(3Gb/s, 6Gb/s and 12 Gb/s controllers).
We have done basic sanity test @ppc64 arch and @x86_64. Additional
testing/observations are welcome.
[jejb: fix up rejections]
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index cb32df1..0c73ba4 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -492,21 +492,39 @@
* a bit in the following structure.
*/
struct {
- u32 copyBackDisabled : 1;
- u32 SMARTerEnabled : 1;
- u32 prCorrectUnconfiguredAreas : 1;
- u32 useFdeOnly : 1;
- u32 disableNCQ : 1;
- u32 SSDSMARTerEnabled : 1;
- u32 SSDPatrolReadEnabled : 1;
- u32 enableSpinDownUnconfigured : 1;
- u32 autoEnhancedImport : 1;
- u32 enableSecretKeyControl : 1;
- u32 disableOnlineCtrlReset : 1;
- u32 allowBootWithPinnedCache : 1;
- u32 disableSpinDownHS : 1;
- u32 enableJBOD : 1;
- u32 reserved :18;
+#if defined(__BIG_ENDIAN_BITFIELD)
+ u32 reserved:18;
+ u32 enableJBOD:1;
+ u32 disableSpinDownHS:1;
+ u32 allowBootWithPinnedCache:1;
+ u32 disableOnlineCtrlReset:1;
+ u32 enableSecretKeyControl:1;
+ u32 autoEnhancedImport:1;
+ u32 enableSpinDownUnconfigured:1;
+ u32 SSDPatrolReadEnabled:1;
+ u32 SSDSMARTerEnabled:1;
+ u32 disableNCQ:1;
+ u32 useFdeOnly:1;
+ u32 prCorrectUnconfiguredAreas:1;
+ u32 SMARTerEnabled:1;
+ u32 copyBackDisabled:1;
+#else
+ u32 copyBackDisabled:1;
+ u32 SMARTerEnabled:1;
+ u32 prCorrectUnconfiguredAreas:1;
+ u32 useFdeOnly:1;
+ u32 disableNCQ:1;
+ u32 SSDSMARTerEnabled:1;
+ u32 SSDPatrolReadEnabled:1;
+ u32 enableSpinDownUnconfigured:1;
+ u32 autoEnhancedImport:1;
+ u32 enableSecretKeyControl:1;
+ u32 disableOnlineCtrlReset:1;
+ u32 allowBootWithPinnedCache:1;
+ u32 disableSpinDownHS:1;
+ u32 enableJBOD:1;
+ u32 reserved:18;
+#endif
} OnOffProperties;
u8 autoSnapVDSpace;
u8 viewSpace;
@@ -820,6 +838,30 @@
u16 cacheMemorySize; /*7A2h */
struct { /*7A4h */
+#if defined(__BIG_ENDIAN_BITFIELD)
+ u32 reserved:11;
+ u32 supportUnevenSpans:1;
+ u32 dedicatedHotSparesLimited:1;
+ u32 headlessMode:1;
+ u32 supportEmulatedDrives:1;
+ u32 supportResetNow:1;
+ u32 realTimeScheduler:1;
+ u32 supportSSDPatrolRead:1;
+ u32 supportPerfTuning:1;
+ u32 disableOnlinePFKChange:1;
+ u32 supportJBOD:1;
+ u32 supportBootTimePFKChange:1;
+ u32 supportSetLinkSpeed:1;
+ u32 supportEmergencySpares:1;
+ u32 supportSuspendResumeBGops:1;
+ u32 blockSSDWriteCacheChange:1;
+ u32 supportShieldState:1;
+ u32 supportLdBBMInfo:1;
+ u32 supportLdPIType3:1;
+ u32 supportLdPIType2:1;
+ u32 supportLdPIType1:1;
+ u32 supportPIcontroller:1;
+#else
u32 supportPIcontroller:1;
u32 supportLdPIType1:1;
u32 supportLdPIType2:1;
@@ -845,6 +887,7 @@
u32 supportUnevenSpans:1;
u32 reserved:11;
+#endif
} adapterOperations2;
u8 driverVersion[32]; /*7A8h */
@@ -1069,9 +1112,15 @@
typedef union _MFI_CAPABILITIES {
struct {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ u32 reserved:30;
+ u32 support_additional_msix:1;
+ u32 support_fp_remote_lun:1;
+#else
u32 support_fp_remote_lun:1;
u32 support_additional_msix:1;
u32 reserved:30;
+#endif
} mfi_capabilities;
u32 reg;
} MFI_CAPABILITIES;