pvscsi4

To compile this driver into the kernel, place the following line in your kernel configuration file:

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.