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* Fix undefined behavior: (1 << 31) is not defined as 1 is an int and thisEitan Adler2013-11-301-1/+1
| | | | | | | | | | | | | | | | shifts into the sign bit. Instead use (1U << 31) which gets the expected result. This fix is not ideal as it assumes a 32 bit int, but does fix the issue for most cases. A similar change was made in OpenBSD. Discussed with: -arch, rdivacky Reviewed by: cperciva Notes: svn path=/head/; revision=258780
* Run mvs SATA driver on Armada XP instead of old mv_sataZbigniew Bodek2013-10-281-0/+2
| | | | | | | | The mvs driver seems to be more functional than mv_sata and is not causing random interrupt storms during boot. Notes: svn path=/head/; revision=257240
* Merge CAM locking changes from the projects/camlock branch to radicallyAlexander Motin2013-10-211-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | reduce lock congestion and improve SMP scalability of the SCSI/ATA stack, preparing the ground for the coming next GEOM direct dispatch support. Replace big per-SIM locks with bunch of smaller ones: - per-LUN locks to protect device and peripheral drivers state; - per-target locks to protect list of LUNs on target; - per-bus locks to protect reference counting; - per-send queue locks to protect queue of CCBs to be sent; - per-done queue locks to protect queue of completed CCBs; - remaining per-SIM locks now protect only HBA driver internals. While holding LUN lock it is allowed (while not recommended for performance reasons) to take SIM lock. The opposite acquisition order is forbidden. All the other locks are leaf locks, that can be taken anywhere, but should not be cascaded. Many functions, such as: xpt_action(), xpt_done(), xpt_async(), xpt_create_path(), etc. are no longer require (but allow) SIM lock to be held. To keep compatibility and solve cases where SIM lock can't be dropped, all xpt_async() calls in addition to xpt_done() calls are queued to completion threads for async processing in clean environment without SIM lock held. Instead of single CAM SWI thread, used for commands completion processing before, use multiple (depending on number of CPUs) threads. Load balanced between them using "hash" of the device B:T:L address. HBA drivers that can drop SIM lock during completion processing and have sufficient number of completion threads to efficiently scale to multiple CPUs can use new function xpt_done_direct() to avoid extra context switch. Make ahci(4) driver to use this mechanism depending on hardware setup. Sponsored by: iXsystems, Inc. MFC after: 2 months Notes: svn path=/head/; revision=256843
* Replicate r242422 from ata(4) to mvs(4):Alexander Motin2013-06-121-3/+9
| | | | | | | | | | | Only four specific ATA PIO commands transfer several sectors per DRQ block (interrupt). All other ATA PIO commands transfer one sector or 512 bytes at one time. Hardcode these exceptions in mvs(4) with ATA_CAM option. This fixes timeout of READ LOG EXT command used by `smartctl -x /dev/adaX`. Also it fixes timeout of DOWNLOAD_MICROCODE on `camcontrol fwdownload`. Notes: svn path=/head/; revision=251661
* Make siis(4) and mvs(4) send bus_get_dma_tag() requests to parent busesAlexander Motin2013-04-182-1/+17
| | | | | | | | | passing real bus' child pointers instead of grandchilds. Requested by: kib Notes: svn path=/head/; revision=249622
* Reform the busdma API so that new types may be added without modifyingKonstantin Belousov2013-02-121-12/+2
| | | | | | | | | | | | | | | | | | | | | | | | every architecture's busdma_machdep.c. It is done by unifying the bus_dmamap_load_buffer() routines so that they may be called from MI code. The MD busdma is then given a chance to do any final processing in the complete() callback. The cam changes unify the bus_dmamap_load* handling in cam drivers. The arm and mips implementations are updated to track virtual addresses for sync(). Previously this was done in a type specific way. Now it is done in a generic way by recording the list of virtuals in the map. Submitted by: jeff (sponsored by EMC/Isilon) Reviewed by: kan (previous version), scottl, mjacob (isp(4), no objections for target mode changes) Discussed with: ian (arm changes) Tested by: marius (sparc64), mips (jmallet), isci(4) on x86 (jharris), amd64 (Fabian Keil <freebsd-listen@fabiankeil.de>) Notes: svn path=/head/; revision=246713
* Add support for Marvell 88F6282.Hiroki Sato2012-07-281-0/+1
| | | | | | | Sponsored by: Plat'Home, Co.,Ltd. Notes: svn path=/head/; revision=238873
* - Limit r214102 workaround to only x86. On arm it causes more problemsAlexander Motin2012-06-123-1/+47
| | | | | | | | | | | | then solves because of cache coherency issues. This fixes periodic error messages on console and command timeouts. - Patch SATA PHY configuration for 65nm SoCs to improve SNR same as Linux does. MFC after: 2 weeks Notes: svn path=/head/; revision=236952
* Partially revert r236666:Alexander Motin2012-06-101-1/+1
| | | | | | | | | | | | | | Return PROTO_ATA protocol in response to XPT_PATH_INQ. smartmontools uses it to identify ATA devices and I don't know any other place now where it is important. It could probably use XPT_GDEV_TYPE instead for more accurate protocol information, but let it live for now. Reported by: matthew MFC after: 3 days Notes: svn path=/head/; revision=236847
* ATA/SATA controllers have no idea about protocol of the connected deviceAlexander Motin2012-06-061-2/+2
| | | | | | | | | | until transport will do some probe actions (at least soft reset). Make ATA/SATA SIMs to not report bogus and confusing PROTO_ATA protocol. Make ATA/SATA transport to fill that gap by reporting protocol to SIM with XPT_SET_TRAN_SETTINGS and patching XPT_GET_TRAN_SETTINGS results if needed. Notes: svn path=/head/; revision=236666
* Add two functions xpt_batch_start() and xpt_batch_done() to the CAM SIM KPIAlexander Motin2012-05-121-0/+2
| | | | | | | | | | | | to allow drivers to handle request completion directly without passing them to the CAM SWI thread removing extra context switch. Modify all ATA/SATA drivers to use them. Reviewed by: gibbs, ken MFC after: 2 weeks Notes: svn path=/head/; revision=235333
* Adjust mvs(4) to handle interrupt cause reg depending on the actual number ofRafal Jaworowski2012-02-012-10/+16
| | | | | | | | | | | | | | | | | | | channels available - current code treats bits 4:7 in 'SATAHC interrupt mask' and 'SATAHC interrupt cause' as flags for SATA channels 2 and 3 - for embedded SATA controllers (SoC) these bits have been marked as reserved in datasheets so far, but for some new and upcoming chips they are used for purposes other than SATA Submitted by: Lukasz Plachno Reviewed by: mav Obtained from: Semihalf MFC after: 2 weeks Notes: svn path=/head/; revision=230865
* Rename device_delete_all_children() into device_delete_children().Hans Petter Selasky2011-11-222-2/+2
| | | | | | | | Suggested by: jhb @ and marius @ MFC after: 1 week Notes: svn path=/head/; revision=227849
* Move the device_delete_all_children() function from usb_util.cHans Petter Selasky2011-11-192-14/+4
| | | | | | | | | | | to kern/subr_bus.c. Simplify this function so that it no longer depends on malloc() to execute. Identify a few other places where it makes sense to use device_delete_all_children(). MFC after: 1 week Notes: svn path=/head/; revision=227701
* Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.Ed Schouten2011-11-071-1/+1
| | | | | | | This means that their use is restricted to a single C file. Notes: svn path=/head/; revision=227293
* According to SATA specification, when Serial ATA Enclosure Management BridgeAlexander Motin2011-05-251-10/+34
| | | | | | | | | | | | | | | | | | | | | | | (SEMB) is unable to communicate to Storage Enclosure Processor (SEP), in response to hard and soft resets it should among other things return value 0x7F in Status register. The weird side is that it means DRQ bit set, which tells that reset request is not completed. It would be fine if SEMB was the only device on port. But if SEMB connected to PMP or built into it, it may block access to other devices sharing same SATA port. Make some tunings/fixes to soft-reset handling to workaround the issue: - ahci(4): request CLO on the port after soft reset to ignore DRQ bit; - siis(4): gracefully reinitialize port after soft reset timeout (hardware doesn't detect reset request completion in this case); - mvs(4): if PMP is used, send dummy soft-reset to the PMP port to make it clear DRQ bit for us. For now this makes quirks in ata_pmp.c, hiding SEMB ports of SiI3726/SiI4726 PMPs, less important. Further, if hardware permit, I hope to implement real SEMB support. Notes: svn path=/head/; revision=222285
* Fix some English grammar.Alexander Motin2011-04-192-6/+6
| | | | Notes: svn path=/head/; revision=220830
* According to specification. device should respond to COMRESET with COMINITAlexander Motin2011-04-191-10/+14
| | | | | | | | in no more then 10ms. If we detected no device presence within that time, there is no reason to wait longer. Notes: svn path=/head/; revision=220829
* Properly handle memory allocation errors during error recovery.Alexander Motin2011-04-191-6/+19
| | | | Notes: svn path=/head/; revision=220822
* Refactor hard-reset implementation in mvs(4).Alexander Motin2011-04-142-17/+86
| | | | | | | | | | | | Instead of spinning in a tight loop for up to 15 seconds, polling for device readiness while it spins up, return reset completion just after PHY reports "connect well" or 100ms connection timeout. If device was found, use callout for checking device readiness with 100ms period up to full 31 second timeout. This fixes system freeze for 5-10 seconds on drives hot plug-in. Notes: svn path=/head/; revision=220615
* Improve SATA Asynchronous Notification feature support in CAM:Alexander Motin2011-04-131-0/+15
| | | | | | | | | | | | | | | | - make SATA SIMs announce capabilities to handle SDB with Notification bit; - make PMP driver honor this SIMs capability; - make SATA XPT to negotiate and enable this feature for ATAPI devices. This feature allows supporting SATA ATAPI devices to inform system about some events happened, that may require attention. In my case this allows LG GH22LS50 SATA DVR-RW drive to report tray open/close events. Events reported to CAM in form of AC_SCSI_AEN async. Further they could be used as a hints for checking device status and reporting media change to upper layers, for example, via spoiling mechanism of GEOM. Notes: svn path=/head/; revision=220602
* Implement automatic SCSI sense fetching for mvs(4).Alexander Motin2011-04-122-38/+111
| | | | | | | | Make few improvements/changes to ATAPI PIO support to pass most of scgcheck (cdrtools) tests. Notes: svn path=/head/; revision=220569
* Update mvs(4) driver to work over FDT's simplebus(4) bus.Alexander Motin2011-03-281-4/+9
| | | | Notes: svn path=/head/; revision=220097
* Workaround strange situation when EDMA_RESQIP register returns zero insteadAlexander Motin2010-10-201-15/+31
| | | | | | | | | | | of proper value. It caused bunch of "EMPTY CRPB" messages and potentially may cause premature requests completion, which could cause data corruption. For most cases it seems enough to just reread register to get proper value. To protect against worse cases - erase processed queue entries with impossible values and ignore them if problem still happen. Notes: svn path=/head/; revision=214102
* Some style cleanup:Alexander Motin2010-10-203-44/+37
| | | | | | | | - remove commented debugging code; - wrap long lines. Notes: svn path=/head/; revision=214099
* Fix panic, when due to some kind of congestion on FIS-based switchingAlexander Motin2010-09-161-5/+8
| | | | | | | | | | port multiplier some command triggers false positive timeout, but then completes normally. MFC after: 2 weeks Notes: svn path=/head/; revision=212732
* Export PCI IDs of ATA/SATA controllers through CAM and ata(4) layers toAlexander Motin2010-07-251-1/+9
| | | | | | | | GEOM. This information needed for proper soft-RAID's on-disk metadata reading and writing. Notes: svn path=/head/; revision=210471
* Plug memory leak to silent Coverity. Error is still not really handled.Alexander Motin2010-06-051-0/+1
| | | | | | | | Found with: Coverity Prevent(tm) CID: 4137 Notes: svn path=/head/; revision=208818
* Fill rman range start/end values. It makes devinfo output more readable.Alexander Motin2010-05-222-0/+4
| | | | Notes: svn path=/head/; revision=208414
* Report ATA/SATA channel number to NewBus at location string.Alexander Motin2010-05-222-0/+22
| | | | Notes: svn path=/head/; revision=208410
* Improve suspend/resume support. Make sure controller is idle on suspendAlexander Motin2010-05-211-15/+44
| | | | | | | and reset it on resume. Notes: svn path=/head/; revision=208393
* Fix polled operation. Now it is possible to dump kernel via mvs(4).Alexander Motin2010-05-061-1/+1
| | | | Notes: svn path=/head/; revision=207696
* Import mvs(4) - Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA controllersAlexander Motin2010-05-025-0/+3801
driver for CAM ATA subsystem. This driver supports same hardware as atamarvell, ataadaptec and atamvsata drivers from ata(4), but provides many additional features, such as NCQ, PMP, etc. Notes: svn path=/head/; revision=207536
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