2 .\" Copyright (c) 2000 Michael Smith
3 .\" Copyright (c) 2000 BSDi
4 .\" All rights reserved.
6 .\" Redistribution and use in source and binary forms, with or without
7 .\" modification, are permitted provided that the following conditions
9 .\" 1. Redistributions of source code must retain the above copyright
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15 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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32 .Nd 3ware 5000/6000/7000/8000 series ATA RAID adapter driver
39 driver provides support for AMCC's 3ware 5000/6000/7000/8000 series
41 These adapters were formerly know as
44 These devices support 2, 4, 8, or 12 ATA disk drives
45 and provide RAID0 (striping) and RAID1 (mirroring) functionality.
49 driver supports the following ATA RAID
54 AMCC's 3ware 5000 series
56 AMCC's 3ware 6000 series
90 AMCC's 3ware 8506-12MI
93 .Ss Controller initialisation phase
95 .It twe%d: microcontroller not ready
97 The controller's onboard CPU is not reporting that it is ready;
98 this may be due to either a board or system failure.
99 Initialisation has failed.
100 .It twe%d: no attention interrupt
101 .It twe%d: can't drain AEN queue
102 .It twe%d: reset not reported
103 .It twe%d: controller errors detected
104 .It twe%d: can't drain response queue
105 .It twe%d: reset %d failed, trying again
107 The controller is not responding correctly to
108 the driver's attempts to reset and initialise it.
109 This process is retried several times.
110 .It twe%d: can't initialise controller, giving up
112 Several attempts to reset and initialise the controller have failed;
113 initialisation has failed
114 and the driver will not attach to this controller.
116 .Ss Driver initialisation/shutdown phase
118 .It twe%d: register window not available
119 .It twe%d: can't allocate register window
120 .It twe%d: can't allocate parent DMA tag
121 .It twe%d: can't allocate interrupt
122 .It twe%d: can't set up interrupt
123 .It twe%d: can't establish configuration hook
125 A resource allocation error occurred while initialising the driver;
126 initialisation has failed
127 and the driver will not attach to this controller.
128 .It twe%d: can't detect attached units
130 Fetching the list of attached units failed; initialisation has failed.
131 .It twe%d: error fetching capacity for unit %d
132 .It twe%d: error fetching state for unit %d
133 .It twe%d: error fetching descriptor size for unit %d
134 .It twe%d: error fetching descriptor for unit %d
135 .It twe%d: device_add_child failed
136 .It twe%d: bus_generic_attach returned %d
138 Creation of the disk devices failed, either due to communications
139 problems with the adapter or due to resource shortage;
140 attachment of one or more units may have been aborted.
142 .Ss Operational phase
144 .It twe%d: command completed - %s
147 A command was reported completed with a warning by the controller.
148 The warning may be one of:
150 .It redundant/inconsequential request ignored
151 .It failed to write zeroes to LBA 0
152 .It failed to profile TwinStor zones
155 .It twe%d: command failed - %s
158 A command was reported as failed by the controller.
159 The failure message may be one of:
161 .It aborted due to system command or reconfiguration
168 .It invalid unit number
169 .It unit not available
171 .It request incompatible with unit
173 .It firmware error, reset requested
175 The command will be returned to the operating system after a
179 .It twe%d: command failed submission - controller wedged
181 A command could not be delivered to the controller because
182 the controller is unresponsive.
186 The controller has reported a change in status using an AEN
187 (Asynchronous Event Notification).
188 The following AENs may be reported:
197 .It initialisation done
198 .It unclean shutdown detected
204 AENs are also queued internally for use by management tools.
207 .It twe%d: error polling for signalled AENs
209 The controller has reported
210 that one or more status messages are ready for the driver,
211 but attempting to fetch one of these has returned an error.
212 .It twe%d: AEN queue overflow, lost AEN <%s>
214 A status message was retrieved from the controller,
215 but there is no more room to queue it in the driver.
216 The message is lost (but will be printed to the console).
217 .It twe%d: missing expected status bits %s
218 .It twe%d: unexpected status bits %s
220 A check of the controller's status bits
221 indicates an unexpected condition.
222 .It twe%d: host interrupt
224 The controller has signalled a host interrupt.
225 This serves an unknown purpose and is ignored.
226 .It twe%d: command interrupt
228 The controller has signalled a command interrupt.
229 This is not used, and will be disabled.
230 .It twe%d: controller reset in progress...
232 The controller is being reset by the driver.
233 Typically this is done when the driver has determined that the
234 controller is in an unrecoverable state.
235 .It twe%d: can't reset controller, giving up
237 The driver has given up on resetting the controller.
238 No further I/O will be handled.
239 .It controller reset done, %d commands restarted
241 The controller was successfully reset,
242 and outstanding commands were restarted.
247 driver and manpage were written by
249 .Aq msmith@FreeBSD.org .
251 The controller cannot handle I/O transfers
252 that are not aligned to a 512-byte boundary.
253 In order to support raw device access from user-space,
254 the driver will perform alignment fixup on non-aligned data.
255 This process is inefficient,
256 and thus in order to obtain best performance
257 user-space applications accessing the device
258 should do so with aligned buffers.