Added support for Firmware debuging
---
Signed-off-by: Kashyap Desai <kadesai@xxxxxxx>
---
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 55d9a7e..ea3aafb 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -107,6 +107,14 @@ module_param_call(mpt_debug_level, mpt_set_debug_level, param_get_int,
MODULE_PARM_DESC(mpt_debug_level, " debug level - refer to mptdebug.h \
- (default=0)");
+int mpt_fwfault_debug;
+EXPORT_SYMBOL(mpt_fwfault_debug);
+module_param_call(mpt_fwfault_debug, param_set_int, param_get_int,
+ &mpt_fwfault_debug, 0600);
+MODULE_PARM_DESC(mpt_fwfault_debug, "Enable detection of Firmware fault"
+ " and halt Firmware on fault - (default=0)");
+
+
#ifdef MFCNT
static int mfcounter = 0;
@@ -6337,6 +6345,33 @@ mpt_print_ioc_summary(MPT_ADAPTER *ioc, char *buffer, int *size, int len, int sh
*size = y;
}
+
+/**
+ * mpt_halt_firmware - Halts the firmware if it is operational and panic
+ * the kernel
+ * @ioc: Pointer to MPT_ADAPTER structure
+ *
+ **/
+void
+mpt_halt_firmware(MPT_ADAPTER *ioc)
+{
+ u32 ioc_raw_state;
+
+ ioc_raw_state = mpt_GetIocState(ioc, 0);
+
+ if ((ioc_raw_state & MPI_IOC_STATE_MASK) == MPI_IOC_STATE_FAULT) {
+ printk(MYIOC_s_ERR_FMT "IOC is in FAULT state (%04xh)!!!\n",
+ ioc->name, ioc_raw_state & MPI_DOORBELL_DATA_MASK);
+ panic("%s: IOC Fault (%04xh)!!!\n", ioc->name,
+ ioc_raw_state & MPI_DOORBELL_DATA_MASK);
+ } else {
+ CHIPREG_WRITE32(&ioc->chip->Doorbell, 0xC0FFEE00);
+ panic("%s: Firmware is halted due to command timeout\n",
+ ioc->name);
+ }
+}
+EXPORT_SYMBOL(mpt_halt_firmware);
+
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* Reset Handling
@@ -6369,6 +6404,8 @@ mpt_HardResetHandler(MPT_ADAPTER *ioc, int sleepFlag)
printk(MYIOC_s_INFO_FMT "HardResetHandler Entered!\n", ioc->name);
printk("MF count 0x%x !\n", ioc->mfcnt);
#endif
+ if (mpt_fwfault_debug)
+ mpt_halt_firmware(ioc);
/* Reset the adapter. Prevent more than 1 call to
* mpt_do_ioc_recovery at any instant in time.
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index dff048c..b3e981d 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -922,11 +922,14 @@ extern void mpt_free_fw_memory(MPT_ADAPTER *ioc);
extern int mpt_findImVolumes(MPT_ADAPTER *ioc);
extern int mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode);
extern int mpt_raid_phys_disk_pg0(MPT_ADAPTER *ioc, u8 phys_disk_num, pRaidPhysDiskPage0_t phys_disk);
+extern void mpt_halt_firmware(MPT_ADAPTER *ioc);
+
/*
* Public data decl's...
*/
extern struct list_head ioc_list;
+extern int mpt_fwfault_debug;
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
#endif /* } __KERNEL__ */
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index ee09041..e62c6bc 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -1846,6 +1846,9 @@ mptscsih_abort(struct scsi_cmnd * SCpnt)
if (hd->timeouts < -1)
hd->timeouts++;
+ if (mpt_fwfault_debug)
+ mpt_halt_firmware(ioc);
+
/* Most important! Set TaskMsgContext to SCpnt's MsgContext!
* (the IO to be ABORT'd)
*
--
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