Lines Matching full:backend

33  * If supported, the backend will write the key "multi-queue-max-queues" to
38  * greater than zero, and no more than the value reported by the backend in
42  * ring-ref keys are written as before, simplifying the backend processing
85  * Recognised only if "feature-barrier" is present in backend xenbus info.
91  * If a backend does not recognise BLKIF_OP_WRITE_BARRIER, it should *not*
97  * Recognised if "feature-flush-cache" is present in backend xenbus
104  * is worthwhile for the frontend to attempt flushes.  If a backend does
111  * Recognised only if "feature-discard" is present in backend xenbus info.
118  * If a backend does not recognise BLKIF_OP_DISCARD, it should *not*
136  * The backend can optionally provide three extra XenBus attributes to
155  * Recognized if "feature-max-indirect-segments" in present in the backend
157  * number of segments allowed by the backend per request. If the node is
160  * maximum number of indirect segments is fixed by the backend, but the
162  * it's less than the number provided by the backend. The indirect_grefs field
173  * If a backend does not recognize BLKIF_OP_INDIRECT, it should *not*