Lines Matching +full:chip +full:- +full:to +full:- +full:chip

13 .\" 3. The name of the author may not be used to endorse or promote products
17 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
34 To compile this driver into the kernel,
37 .Bd -ragged -offset indent
45 Alternatively, to load the driver as a
48 .Bd -literal -offset indent
54 This driver provides access to the
56 bus(es) connected to the Adaptec AIC77xx and AIC78xx
64 .Tn SCSI-Select
72 For systems that store non-volatile settings in a system specific manner
73 rather than a serial eeprom directly connected to the aic7xxx controller,
76 must be enabled for the driver to access this information.
77 This restriction applies to
78 many chip-down motherboard configurations.
86 by a particular chip, may be disabled in a particular motherboard or card
88 .Bd -ragged -offset indent
89 .Bl -column "aic7895CX" "MIPSX" "PCI/64X" "MaxSyncX" "MaxWidthX" "SCBsX" "2 3 4 5 6 7 8X"
90 .It Em "Chip" Ta "MIPS" Ta "Bus" Ta "MaxSync" Ta "MaxWidth" Ta "SCBs" Ta "Features"
106 .Bl -enum -compact
108 Multiplexed Twin Channel Device - One controller servicing two busses.
110 Multi-function Twin Channel Device - Two controllers on one chip.
112 Command Channel Secondary DMA Engine - Allows scatter gather list and
115 64 Byte SCB Support - SCSI CDB is embedded in the SCB to eliminate an extra DMA.
117 Block Move Instruction Support - Doubles the speed of certain sequencer
121 style Scatter Gather Engine - Improves S/G prefetch performance.
123 Queuing Registers - Allows queueing of new transactions without pausing the
126 Multiple Target IDs - Allows the controller to respond to selection as a
132 To allow PCI adapters to use memory mapped I/O if enabled:
134 .Cd options AHC_ALLOW_MEMIO=(0 -- disabled, 1 -- enabled)
135 .Bd -ragged -offset indent
139 sitting behind a PCI->PCI bridge, the BIOS may fail to properly initialize
140 the chip for memory mapped I/O. The typical symptom of this problem is a
148 To statically configure one or more controllers to assume the target role:
151 .Bd -ragged -offset indent
152 The value assigned to this option should be a bitmap of all units where target
164 .Bl -tag -width indent
166 A hint to define whether the SCSI target mode is enabled, defaults to disabled
167 (0 -- disabled, 1 -- enabled).
169 A hint to define whether memory mapped io is enabled or disabled for this
170 adapter, defaults to enabled (0 -- disabled, 1 -- enabled).
181 .Bl -bullet -compact
185 host adapter chip
189 host adapter chip
193 host adapter chip
197 host adapter chip
201 host adapter chip
205 host adapter chip
209 host adapter chip
213 host adapter chip
217 host adapter chip
221 host adapter chip
225 host adapter chip
229 host adapter chip
330 Many motherboards with on-board
335 Every transaction sent to a device on the SCSI bus is assigned a
339 controller to process a transaction.
340 The chip feature table lists
341 the number of SCBs that can be stored in on-chip memory.
343 with model numbers greater than or equal to 7870 allow for the on chip
344 SCB space to be augmented with external SRAM up to a maximum of 255 SCBs.
348 Using the SCBs in a straight forward manner would only allow the driver to
350 To fully utilize the SCSI bus and the devices on it,
352 The solution to this problem is
354 a concept similar to memory paging.
357 periods of time without talking to the controller.
358 The SCBs for disconnected transactions are only of use to the controller
361 for the controller to execute, the controller firmware will use a
364 disconnected (and therefore most likely to stay disconnected) SCB is
365 saved, via dma, to host memory, and the local SCB reused to start
367 This allows the controller to queue up to
389 sequencer-code assembler,
400 .Tn SCSI-Select
404 ram space to support both the initiator and target roles concurrently,
406 to respond on multiple target ids.
411 Reselection in target mode fails to function correctly on all high
414 how to modify HVD board to work correctly in target mode is available