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firewire: fw-ohci: log regAccessFail events 

While trying to debug this piece of crap JMicron PCI-e controller in my
possession, one thought was that perhaps I was encountering register access
failures. I'm not, but logging them would be good, so we can see if they
are a real problem we should be taking into account anywhere in the code.

Signed-off-by: Jarod Wilson <jwilson@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (added list contact)
This commit is contained in:
Jarod Wilson 2008-04-03 17:18:23 -04:00 committed by Stefan Richter
parent 022147242f
commit 75f7832e3b
2 changed files with 11 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/firewire/fw-ohci.c
View File

@ -257,7 +257,7 @@ static void log_irqs(u32 evt)
if (likely(!(param_debug & OHCI_PARAM_DEBUG_IRQS)))
return;
printk(KERN_DEBUG KBUILD_MODNAME ": IRQ %08x%s%s%s%s%s%s%s%s%s%s%s\n",
printk(KERN_DEBUG KBUILD_MODNAME ": IRQ %08x%s%s%s%s%s%s%s%s%s%s%s%s\n",
evt,
evt & OHCI1394_selfIDComplete ? " selfID" : "",
evt & OHCI1394_RQPkt ? " AR_req" : "",
@ -269,11 +269,13 @@ static void log_irqs(u32 evt)
evt & OHCI1394_postedWriteErr ? " postedWriteErr" : "",
evt & OHCI1394_cycleTooLong ? " cycleTooLong" : "",
evt & OHCI1394_cycle64Seconds ? " cycle64Seconds" : "",
evt & OHCI1394_regAccessFail ? " regAccessFail" : "",
evt & ~(OHCI1394_selfIDComplete | OHCI1394_RQPkt |
OHCI1394_RSPkt | OHCI1394_reqTxComplete |
OHCI1394_respTxComplete | OHCI1394_isochRx |
OHCI1394_isochTx | OHCI1394_postedWriteErr |
OHCI1394_cycleTooLong | OHCI1394_cycle64Seconds)
OHCI1394_cycleTooLong | OHCI1394_cycle64Seconds |
OHCI1394_regAccessFail)
? " ?" : "");
}
@ -1351,6 +1353,10 @@ static irqreturn_t irq_handler(int irq, void *data)
iso_event &= ~(1 << i);
}
if (unlikely(event & OHCI1394_regAccessFail))
fw_error("Register access failure - "
"please notify linux1394-devel@lists.sf.net\n");
if (unlikely(event & OHCI1394_postedWriteErr))
fw_error("PCI posted write error\n");
@ -1448,7 +1454,8 @@ static int ohci_enable(struct fw_card *card, u32 *config_rom, size_t length)
OHCI1394_reqTxComplete | OHCI1394_respTxComplete |
OHCI1394_isochRx | OHCI1394_isochTx |
OHCI1394_postedWriteErr | OHCI1394_cycleTooLong |
OHCI1394_cycle64Seconds | OHCI1394_masterIntEnable);
OHCI1394_cycle64Seconds | OHCI1394_regAccessFail |
OHCI1394_masterIntEnable);
/* Activate link_on bit and contender bit in our self ID packets.*/
if (ohci_update_phy_reg(card, 4, 0,

1
drivers/firewire/fw-ohci.h
View File

@ -125,6 +125,7 @@
#define OHCI1394_lockRespErr 0x00000200
#define OHCI1394_selfIDComplete 0x00010000
#define OHCI1394_busReset 0x00020000
#define OHCI1394_regAccessFail 0x00040000
#define OHCI1394_phy 0x00080000
#define OHCI1394_cycleSynch 0x00100000
#define OHCI1394_cycle64Seconds 0x00200000