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2011-11-25Deorbit the broken amd(4) (see PR 124667), which was superseded by esp(4)Marius Strobl
as of r227006. Notes: svn path=/head/; revision=227982
2010-01-07Remove extraneous semicolons, no functional changes.Martin Blapp
Submitted by: Marc Balmer <marc@msys.ch> MFC after: 1 week Notes: svn path=/head/; revision=201758
2009-07-10Separate the parallel scsi knowledge out of the core of the XPT, andScott Long
modularize it so that new transports can be created. Add a transport for SATA Add a periph+protocol layer for ATA Add a driver for AHCI-compliant hardware. Add a maxio field to CAM so that drivers can advertise their max I/O capability. Modify various drivers so that they are insulated from the value of MAXPHYS. The new ATA/SATA code supports AHCI-compliant hardware, and will override the classic ATA driver if it is loaded as a module at boot time or compiled into the kernel. The stack now support NCQ (tagged queueing) for increased performance on modern SATA drives. It also supports port multipliers. ATA drives are accessed via 'ada' device nodes. ATAPI drives are accessed via 'cd' device nodes. They can all be enumerated and manipulated via camcontrol, just like SCSI drives. SCSI commands are not translated to their ATA equivalents; ATA native commands are used throughout the entire stack, including camcontrol. See the camcontrol manpage for further details. Testing this code may require that you update your fstab, and possibly modify your BIOS to enable AHCI functionality, if available. This code is very experimental at the moment. The userland ABI/API has changed, so applications will need to be recompiled. It may change further in the near future. The 'ada' device name may also change as more infrastructure is completed in this project. The goal is to eventually put all CAM busses and devices until newbus, allowing for interesting topology and management options. Few functional changes will be seen with existing SCSI/SAS/FC drivers, though the userland ABI has still changed. In the future, transports specific modules for SAS and FC may appear in order to better support the topologies and capabilities of these technologies. The modularization of CAM and the addition of the ATA/SATA modules is meant to break CAM out of the mold of being specific to SCSI, letting it grow to be a framework for arbitrary transports and protocols. It also allows drivers to be written to support discrete hardware without jeopardizing the stability of non-related hardware. While only an AHCI driver is provided now, a Silicon Image driver is also in the works. Drivers for ICH1-4, ICH5-6, PIIX, classic IDE, and any other hardware is possible and encouraged. Help with new transports is also encouraged. Submitted by: scottl, mav Approved by: re Notes: svn path=/head/; revision=195534
2007-06-17Prepare for future integration between CAM and newbus. xpt_bus_registerScott Long
now takes a device_t to be the parent of the bus that is being created. Most SIMs have been updated with a reasonable argument, but a few exceptions just pass NULL for now. This argument isn't used yet and the newbus integration likely won't be ready until after 7.0-RELEASE. Notes: svn path=/head/; revision=170872
2007-04-15Remove Giant from CAM. Drivers (SIMs) now register a mutex that CAM willScott Long
use to synchornize and protect all data objects that are used for that SIM. Drivers that are not yet MPSAFE register Giant and operate as usual. RIght now, no drivers are MPSAFE, though a few will be changed in the coming week as this work settles down. The driver API has changed, so all CAM drivers will need to be recompiled. The userland API has not changed, so tools like camcontrol do not need to be recompiled. Notes: svn path=/head/; revision=168752
2007-02-23o break newbus api: add a new argument of type driver_filter_t toPaolo Pisati
bus_setup_intr() o add an int return code to all fast handlers o retire INTR_FAST/IH_FAST For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current Reviewed by: many Approved by: re@ Notes: svn path=/head/; revision=166901
2006-12-11Add MODULE_DEPENDS for cam, pci, mca, eisa and isa where needed.Matt Jacob
PR: 106543 MFC after: 3 days Notes: svn path=/head/; revision=165102
2006-11-022nd and final commit that moves us to CAM_NEW_TRAN_CODEMatt Jacob
as the default. Reviewed by multitudes. Notes: svn path=/head/; revision=163896
2006-10-31The first of 3 major steps to move the CAM layer forward to usingMatt Jacob
the CAM_NEW_TRAN_CODE that has been in the tree for some years now. This first step consists solely of adding to or correcting CAM_NEW_TRAN_CODE pieces in the kernel source tree such that a both a GENERIC (at least on i386) and a LINT build with CAM_NEW_TRAN_CODE as an option will compile correctly and run (at least with some the h/w I have). After a short settle time, the other pieces (making CAM_NEW_TRAN_CODE the default and updating libcam and camcontrol) will be brought in. This will be an incompatible change in that the size of structures related to XPT_PATH_INQ and XPT_{GET,SET}_TRAN_SETTINGS change in both size and content. However, basic system operation and basic system utilities work well enough with this change. Reviewed by: freebsd-scsi and specific stakeholders Notes: svn path=/head/; revision=163816
2005-05-29Remove bus_{mem,p}io.h and related code for a micro-optimization on i386Yoshihiro Takahashi
and amd64. The optimization is a trivial on recent machines. Reviewed by: -arch (imp, marcel, dfr) Notes: svn path=/head/; revision=146734
2005-03-06Use BUS_PROBE_DEFAULTWarner Losh
Notes: svn path=/head/; revision=143168
2005-01-06Start each of the license/copyright comments with /*-, minor shuffle of linesWarner Losh
Notes: svn path=/head/; revision=139749
2004-05-30Add missing <sys/module.h> includesPoul-Henning Kamp
Notes: svn path=/head/; revision=129879
2004-03-17Convert callers to the new bus_alloc_resource_any(9) API.Nate Lawson
Submitted by: Mark Santcroos <marks@ripe.net> Reviewed by: imp, dfr, bde Notes: svn path=/head/; revision=127135
2004-01-21Setting pccb->ccb_h.status to CAM_REQ_CMP one time is enough.Olivier Houchard
Notes: svn path=/head/; revision=124778
2003-08-22Prefer new location of pci include files (which have only been in theWarner Losh
tree for two or more years now), except in a few places where there's code to be compatible with older versions of FreeBSD. Notes: svn path=/head/; revision=119277
2003-08-11bus_dmamap_create() is no longer optional for non-static dma mappings. ThanksScott Long
to ru@ for testing this. Notes: svn path=/head/; revision=118775
2003-07-31Record the missing module dependency ("amd" on "cam").Ruslan Ermilov
Reviewed by: scottl Notes: svn path=/head/; revision=118267
2003-07-01Mega busdma API commit.Scott Long
Add two new arguments to bus_dma_tag_create(): lockfunc and lockfuncarg. Lockfunc allows a driver to provide a function for managing its locking semantics while using busdma. At the moment, this is used for the asynchronous busdma_swi and callback mechanism. Two lockfunc implementations are provided: busdma_lock_mutex() performs standard mutex operations on the mutex that is specified from lockfuncarg. dftl_lock() is a panic implementation and is defaulted to when NULL, NULL are passed to bus_dma_tag_create(). The only time that NULL, NULL should ever be used is when the driver ensures that bus_dmamap_load() will not be deferred. Drivers that do not provide their own locking can pass busdma_lock_mutex,&Giant args in order to preserve the former behaviour. sparc64 and powerpc do not provide real busdma_swi functions, so this is largely a noop on those platforms. The busdma_swi on is64 is not properly locked yet, so warnings will be emitted on this platform when busdma callback deferrals happen. If anyone gets panics or warnings from dflt_lock() being called, please let me know right away. Reviewed by: tmm, gibbs Notes: svn path=/head/; revision=117126
2003-06-14Merge common XPT_CALC_GEOMETRY functions into a single convenience function.Nate Lawson
Devices below may experience a change in geometry. * Due to a bug, aic(4) never used extended geometry. Changes all drives >1G to now use extended translation. * sbp(4) drives exactly 1 GB in size now no longer use extended geometry. * umass(4) drives exactly 1 GB in size now no longer use extended geometry. For all other controllers in this commit, this should be a no-op. Looked over by: scottl Notes: svn path=/head/; revision=116351
2003-05-31Remove unused variable(s).Poul-Henning Kamp
Add XXX comment where intent is unclear. Found by: FlexeLint Notes: svn path=/head/; revision=115559
2003-05-27Bring back bus_dmasync_op_t. It is now a typedef to an int, though theScott Long
BUS_DMASYNC_ definitions remain as before. The does not change the ABI, and reverts the API to be a bit more compatible and flexible. This has survived a full 'make universe'. Approved by: re (bmah) Notes: svn path=/head/; revision=115343
2003-04-10I deserve a big pointy hat for having missed all those referencesMaxime Henrion
to bus_dmasync_op_t in my last commit. Notes: svn path=/head/; revision=113350
2002-12-14Convert the use of vtophys() for doing autosense to use busdma. Also correctScott Long
some error codes that get returned to CAM. Notes: svn path=/head/; revision=107876
2002-12-13Move the amd(4) driver to it's own directory in preparation for it growingScott Long
an sbus front-end. Notes: svn path=/head/; revision=107840
2002-11-08Fix some sizeof(int) != sizeof(void *) warnings.John Baldwin
Notes: svn path=/head/; revision=106668
2002-10-16Be consistent about functions being static.Poul-Henning Kamp
Spotted by: FlexeLint. Notes: svn path=/head/; revision=105219
2001-05-06Move unused functions into #if 0 ... #endif.Yoshihiro Takahashi
Notes: svn path=/head/; revision=76306
2001-03-01Turn on interrupt-entropy harvesting for all/any mass storage devicesMark Murray
I could find. I have no doubt missed a couple. Interrupt entropy harvesting is still conditional on the kern.random.sys.harvest_interrupt sysctl. Notes: svn path=/head/; revision=73280
2000-10-15Remove unneeded #include <machine/clock.h>Poul-Henning Kamp
Notes: svn path=/head/; revision=67164
2000-05-26Back out the previous change to the queue(3) interface.Jake Burkholder
It was not discussed and should probably not happen. Requested by: msmith and others Notes: svn path=/head/; revision=60938
2000-05-23Change the way that the queue(3) structures are declared; don't assume thatJake Burkholder
the type argument to *_HEAD and *_ENTRY is a struct. Suggested by: phk Reviewed by: phk Approved by: mdodd Notes: svn path=/head/; revision=60833
2000-04-19Remove ~25 unneeded #include <sys/conf.h>Poul-Henning Kamp
Remove ~60 unneeded #include <sys/malloc.h> Notes: svn path=/head/; revision=59391
2000-04-18Remove unneeded <sys/buf.h> includes.Poul-Henning Kamp
Due to some interesting cpp tricks in lockmgr, the LINT kernel shrinks by 924 bytes. Notes: svn path=/head/; revision=59368
2000-04-12Set the value of rid variable for bus_alloc_resource(dev, SYS_RES_IOPORT,...)Yoshihiro Takahashi
to PCI_BASE_ADDR0 (== 0x10). Tested by: Brian Somers <brian@Awfulhak.org> Notes: svn path=/head/; revision=59169
2000-04-07Newbusify amd driver.Yoshihiro Takahashi
Some error messages are added by Brian Somers <brian@Awfulhak.org>. Notes: svn path=/head/; revision=59083
2000-03-27Ahhrggg. Put the test for the compat shims AFTER the file that includesWarner Losh
them. Pointed out by: bde Notes: svn path=/head/; revision=58701
2000-03-27Per conversations in -current, add #error to these drivers when you don'tWarner Losh
have the right compatibility shims enabled. ISA drivers to follow later. Notes: svn path=/head/; revision=58695
2000-01-14The error status for a scsi status error is "CAM_SCSI_STATUS_ERROR", not 0.Justin T. Gibbs
Notes: svn path=/head/; revision=55946
1999-08-16Properly set the alignment argument to bus_dma_tag_create(). If weJustin T. Gibbs
don't care about the alignment, set it to 1, meaning single byte alignment. Notes: svn path=/head/; revision=49860
1999-05-22First cut at a driver for the amd53c974 PCI SCSI host adapter. ThisJustin T. Gibbs
driver lacks error recovery and still needs more testing, but it's about time I got it under revision control. Submitted by: Tekram Inc. Bus Space/DMA and cleanup: gibbs Notes: svn path=/head/; revision=47411
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