Move the interupt handler to a driver_intr_t type function as it was trying
to do way to much for a lightweight filter interrupt function.
Introduce much more locking around fc->mtx. Tested this for lock reversals
and other such lockups. Locking seems to be working better, but there
is much more to do with regard to locking. The most significant lock is
in the BUS RESET handler. It was possible, before this checkin, to set
a bus reset via "fwcontrol -r" and have the BUS RESET handler fire before
the code responsible for asserting BUS RESET was complete. This locking
fixes that issue.
Move some of the memory allocations in the fc struct to the attach function
in firewire.c
Rework the businfo.generation indicator to be merely a on/off bit now.
It's purpose according to spec is to notify the bus that the config ROM
has changed. That's it.
Catch and squash a possible panic in SBP where in the SBP_LOCK was held
during a possible error case. The error handling code would definitely
panic as it would try to acquire the SBP_LOCK on entrance.
Catch and squash a camcontrol/device lockup when firewire drives go away.
When a firewire device was powered off or disconnected from the firewire
bus, a "camcontrol rescan all" would hang trying to poll removed devices
as they were not properly detached. Don't do that.
Approved by: scottl
MFC after: 2 weeks
- lock its own locks and drop Giant.
- create its own taskqueue thread.
- split interrupt routine
- use interrupt filter as a fast interrupt.
- run watchdog timer in taskqueue so that it should be
serialized with the bottom half.
- add extra sanity check for transaction labels.
disable ad-hoc workaround for unknown tlabels.
- add sleep/wakeup synchronization primitives
- don't reset OHCI in fwohci_stop()
* all
- s/__FUNCTION__/__func__/.
Submitted by: Stefan Farfeleder <stefan@fafoe.narf.at>
- Compatibility for RELENG_4 and DragonFly.
* firewire
- Timestamp just before queuing.
- Retry bus probe if it fails.
- Use device_printf() for debug message.
- Invalidiate CROM while update.
- Don't process minimum/invalid CROM.
* sbp
- Add ORB_SHORTAGE flag.
- Add sbp.tags tunable.
- Revive doorbell support. It's not enabled by default.
Many internal structure changes for the FireWire driver.
- Compute CRC in CROM parsing.
- Add support for configuration ROM build.
- Simplify dummy buffer handling.
- busdma conversion
- Use swi_taskqueue_giant for -current. Mark the interrupt routine as MPSAFE.
- AR buffer handling.
Don't reallocate AR buffer but just recycle it.
Don't malloc and copy per packet in fwohci_arcv().
Pass packet to fw_rcv() using iovec.
Application must prepare receiving buffer in advance.
- Change fw_bind API so that application should pre-allocate xfer structure.
- Add fw_xfer_unload() for recycling struct fw_xfer.
- Add post_busreset hook
- Remove unused 'sub' and 'act_type' in struct fw_xfer.
- Remove npacket from struct fw_bulkxfer.
- Don't call back handlers in fwochi_arcv() if the packet has
not drained in AT queue
- Make firewire works on big endian platform.
- Use native endian for packet header and remove unnecessary ntohX/htonX.
- Remove FWXFERQ_PACKET mode. We don't use it anymore.
- Remove unnecessary restriction of FWSTMAXCHUNK.
- Don't set root node for phy config packet if the root node is
not cycle master capable but set myself for root node.
We should be the root node after next bus reset.
Spotted by: Yoshihiro Tabira <tabira@scd.mei.co.jp>
- Improve self id handling
Tested on: i386, sparc64 and i386 with forced bounce buffer
- Restore pci config registers after resume.
- Reinitialize and start rx buffers after resume.
- Don't reallocate memory in fwohci_db_init() if the dbch is
already initialized.
- Fix typo.
- Some clean up.
- Fix permission of device node.
fwochi.c, fwohcireg.h
- Detect phy access failure correct way.
- Set root hold-off bit before initiating bus reset.
This should fix the problem with VIA6306.
fwohcivar.h
- Fix over-allocation of array. (fwohcivar.h)
sbp.c
- Return CAM_DEV_NOT_THERE rather than CAM_TID_INVALID to prevent retry.
