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Lines 133-138
variables and
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| 133 |
.Xr loader 8 |
133 |
.Xr loader 8 |
| 134 |
tunables: |
134 |
tunables: |
| 135 |
.Bl -tag -width 12 |
135 |
.Bl -tag -width 12 |
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136 |
.It Va kern.cam.da.default_softtimeout |
| 137 |
Soft I/O timeout (ms). The default is 0. |
| 138 |
Attempting to set this value to a |
| 139 |
time span longer than |
| 140 |
.Va kern.cam.da.default_timeout |
| 141 |
will return |
| 142 |
.Dv EINVAL . |
| 143 |
.It Va kern.cam.da.default_timeout |
| 144 |
This variable determines how long the |
| 145 |
.Nm |
| 146 |
driver will wait before timing out an outstanding command. |
| 147 |
The units for this value are seconds, and the default is currently 60 |
| 148 |
seconds. |
| 149 |
.It Va kern.cam.da.disable_wp_protection |
| 150 |
Disable detection of write-protected disks. Default is disabled |
| 151 |
.Po |
| 152 |
detection of write-protected disks is enabled |
| 153 |
.Pc . |
| 154 |
.It Va kern.cam.da.enable_biospeedup |
| 155 |
Enable |
| 156 |
.Dv BIO_SPEEDUP |
| 157 |
processing. Default is enabled. |
| 158 |
.It Va kern.cam.da.enable_uma_ccbs |
| 159 |
Use UMA for CCBs. Default is enabled. |
| 160 |
.It Va kern.cam.da.poll_period |
| 161 |
Media polling period in seconds. Default is 3 seconds. |
| 136 |
.It Va kern.cam.da.retry_count |
162 |
.It Va kern.cam.da.retry_count |
| 137 |
This variable determines how many times the |
163 |
This variable determines how many times the |
| 138 |
.Nm |
164 |
.Nm |
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Lines 142-153
the
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| 142 |
.Nm |
168 |
.Nm |
| 143 |
driver dump routine. |
169 |
driver dump routine. |
| 144 |
This value currently defaults to 4. |
170 |
This value currently defaults to 4. |
| 145 |
.It Va kern.cam.da.default_timeout |
171 |
.It Va kern.cam.da.send_ordered |
| 146 |
This variable determines how long the |
172 |
Send Ordered Tags. On shutdown, step through all the |
| 147 |
.Nm |
173 |
.Nm |
| 148 |
driver will wait before timing out an outstanding command. |
174 |
peripheral drivers, and if the device is still open, |
| 149 |
The units for this value are seconds, and the default is currently 60 |
175 |
sync the disk to physical media. Default is enabled. |
| 150 |
seconds. |
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| 151 |
.It Va kern.cam.sort_io_queue |
176 |
.It Va kern.cam.sort_io_queue |
| 152 |
.It Va kern.cam.da. Ns Ar X Ns Va .sort_io_queue |
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.It Va kern.cam.da. Ns Ar X Ns Va .sort_io_queue |
| 153 |
These variables determine whether request queue should be sorted trying |
178 |
These variables determine whether request queue should be sorted trying |