To compile this driver into the kernel,
place the following line in your
kernel configuration file:
device pci
device scbus
device pvscsi
Alternatively, to load the driver as a
module at boot time, place the following line in
loader.conf(5):
pvscsi_load="YES"
The following tunables are settable from the
loader(8):
|
| hw.pvscsi.request_ring_pages
|
controls how many pages are allocated for the device request ring.
A non-positive value will cause the driver to choose the value based on device
capabilities.
A non-zero value will use that many number of pages up to a maximum of 32.
The default setting is 0.
|
| hw.pvscsi.max_queue_depth
|
controls the queue size for the adapter.
A non-positive value will cause the driver to choose the value based on number
of request ring pages.
A non-zero value will set the queue size up to a maximum allowed by the number
of request ring pages.
Default is 0.
|
| hw.pvscsi.use_msg
|
setting to nonzero value enables the use of the PVSCSI message queue allowing
for disk hot-add and remove without manual rescan needed.
Default is 1.
|
| hw.pvscsi.use_msi
|
setting to nonzero value enables the use of MSI interrupts.
Default is 1.
|
| hw.pvscsi.use_msix
|
setting to nonzero value enables the use of MSI-X interrupts.
Default is 1.
|
| hw.pvscsi.use_req_call_threshold
|
setting to nonzero value enables the request call threshold functionality.
TODO.
Default is 1.
|
|
