Lines Matching +full:4 +full:a

16 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 .Cd "options CAM_MAX_HIGHPOWER=4"
53 subsystem provides a uniform and modular system for the implementation
70 .Xr pass 4
73 There are a number of generic kernel configuration options for the
95 .It Dv "CAM_MAX_HIGHPOWER=4"
97 A "high power" command is a command that takes more electrical power than
102 Starting a disk often takes significantly more electrical power than normal
112 is a fairly large text database, eliminating it reduces the size of the
127 useful for environments like a boot floppy where kernel size is critical.
143 When the kernel boots, it sends a bus reset to each
145 bus to tell each device to reset itself to a default set of transfer
149 devices need some amount of time to recover from a bus reset.
173 so they appear as a particular device unit or
191 a config line similar to the following:
201 For controllers supporting more than one bus, a particular bus can be assigned
212 Peripheral drivers can be wired to a specific bus, target, and lun as so:
226 These examples can be combined together to allow a peripheral device to be
230 .Xr nvme 4
233 hint.nvme.4.at="pci7:0:0"
245 .Xr nda 4
253 For devices that provide a serial number, units may be wired to that serial
280 The maximum size of a transfer is governed by the
282 Most adapters can transfer 1MB in a single operation, however
287 in which the system is capable of operating as a device, responding to
300 XPT (transport) dispatches these protocol requests to a SIM driver.
301 A SIM driver takes protocol requests and translates them into hardware commands
306 The Common Access Method was a standard defined in the 1990s to talk to disk
311 Each CCB has a standard header, which contains the type of request and dispatch
312 information, and a command specific portion.
313 A CAM Periph generates requests.
317 A SIM takes CCBs and translates them into hardware specific commands to push the
321 A periph driver knows how to translate standard requests into protocol messages
322 that a SIM can deliver to hardware.
324 GEOM as a bio request.
329 These devices present themselves to the kernel a device ending in
331 Each protocol has a unique device name:
332 .Bl -tag -width 4
333 .It Xr da 4
335 .It Xr ada 4
337 .It Xr nda 4
339 .It Xr sdda 4
345 .Xr sa 4
348 They interface to the system via a character device and provide
353 .Xr pass 4
355 The device is used to send commands other than read, write, trim or flush to a
393 commands sent to a particular device or devices.
421 This sets the various debugging flags from a kernel config file.
423 Specify a bus to debug.
426 Specify a target to debug.
429 Specify a lun to debug.
447 .Xr ada 4 ,
448 .Xr da 4 ,
449 .Xr nda 4 ,
450 .\" .Xr sdda 4 ,
451 .Xr pass 4 ,
452 .Xr sa 4
454 .Xr aac 4 ,
455 .Xr aacraid 4 ,
456 .Xr ahc 4 ,
457 .Xr ahci 4 ,
458 .Xr ata 4 ,
459 .Xr aw_mmc 4 ,
460 .Xr ciss 4 ,
461 .Xr hv_storvsc 4 ,
462 .Xr isci 4 ,
463 .Xr iscsi 4 ,
464 .Xr isp 4 ,
465 .\" .Xr mmcnull 4 ,
466 .Xr mpr 4 ,
467 .Xr mps 4 ,
468 .Xr mpt 4 ,
469 .Xr mrsas 4 ,
470 .Xr mvs 4 ,
471 .Xr nvme 4 ,
472 .Xr pms 4 ,
473 .Xr pvscsi 4 ,
474 .Xr sdhci 4 ,
475 .Xr smartpqi 4 ,
476 .Xr sym 4 ,
477 .Xr tws 4 ,
478 .Xr umass 4 ,
479 .Xr virtio_scsi 4
481 .Xr ahd 4 ,
482 .Xr amr 4 ,
483 .Xr arcmsr 4 ,
484 .Xr esp 4 ,
485 .\" .Xr fslsata 4 ,
486 .Xr hpt27xx 4 ,
487 .Xr hptiop 4 ,
488 .Xr hptmv 4 ,
489 .Xr hptnr 4 ,
490 .\" .Xr htprr 4 ,
491 .Xr iir 4
492 .Xr mfi 4 ,
493 .\" .Xr osc 4 ,
494 .\" .Xr ps3cdrom 4 ,
495 .Xr sbp 4 ,
496 .Xr twa 4