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[SCSI] mpt fusion: Add Firmware debug support 

Signed-off-by: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Kashyap, Desai 2009-01-06 15:03:37 +05:30 committed by James Bottomley
parent e382968ba6
commit 2f4c782c2e
3 changed files with 43 additions and 0 deletions
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37
drivers/message/fusion/mptbase.c
View File

@ -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.

3
drivers/message/fusion/mptbase.h
View File

@ -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__ */

3
drivers/message/fusion/mptscsih.c
View File

@ -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)
*