Lines Matching +full:ahci +full:- +full:port

1 .\" Copyright (c) 2009-2013 Alexander Motin <mav@FreeBSD.org>
29 .Nm ahci
35 .Bd -ragged -offset indent
38 .Cd "device ahci"
44 .Bd -literal -offset indent
50 .Bl -ohang
51 .It Va hint.ahci. Ns Ar X Ns Va .msi
54 .Bl -tag -width 4n -offset indent -compact
62 .It Va hint.ahci. Ns Ar X Ns Va .ccc
64 Non-zero value enables CCC and defines maximum time (in ms), request can wait
69 .It Va hint.ahci. Ns Ar X Ns Va .direct
74 .It Va hint.ahci. Ns Ar X Ns Va .em
84 .Bl -tag -width 4n -offset indent -compact
90 host initiates PARTIAL PM state transition every time port becomes idle;
92 host initiates SLUMBER PM state transition every time port becomes idle.
94 driver initiates PARTIAL PM state transition 1ms after port becomes idle;
96 driver initiates SLUMBER PM state transition 125ms after port becomes idle.
104 A manual bus reset/rescan may be needed after device hot-plug, unless hardware
109 .It Va hw.ahci.force
110 setting to nonzero value forces driver attach to some known AHCI-capable
119 ports of AHCI-compatible controllers.
120 Each SATA port found is represented to CAM as a separate bus with one
121 target, or, if HBA supports Port Multipliers, 16 targets.
122 Most of the bus-management details are handled by the SATA-specific
133 Port Multipliers (including FIS-based switching, when supported),
134 hardware command queues (up to 32 commands per port),
135 Native Command Queuing, SATA interface Power Management, device hot-plug
138 Driver supports "LED" enclosure management messages, defined by the AHCI.
139 When supported by hardware, it allows to control per-port activity, locate
145 Supporting AHCI controllers may transmit that information to the backplane
152 driver supports AHCI compatible controllers having PCI class 1 (mass storage),
153 subclass 6 (SATA) and programming interface 1 (AHCI).
156 it supports AHCI part of legacy-PATA + AHCI-SATA combined controllers,
161 driver also supports AHCI devices that act as PCI bridges for
166 device, either one must set the SATA mode in the BIOS to AHCI (from RST),
169 will automatically detect AHCI devices with this extension that are in RST
179 .Bl -tag -width /dev/led/ahcich*.locate
180 .It Pa /dev/led/ahci*.*.act
182 .It Pa /dev/led/ahci*.*.fault
184 .It Pa /dev/led/ahci*.*.locate
188 .Bl -tag