docs/interop/vhost-user.rst

100 A vring state description
111 A vring descriptor index for split virtqueues
115 | vring index | index in avail ring |
118 :vring index: 32-bit index of the respective virtqueue
128 Vring descriptor indices for packed virtqueues
132 | vring index | descriptor indices |
135 :vring index: 32-bit index of the respective virtqueue
148 A vring address description
155 :index: a 32-bit vring index
157 :flags: a 32-bit vring flags
159 :descriptor: a 64-bit ring address of the vring descriptor table
161 :used: a 64-bit ring address of the vring used ring
163 :available: a 64-bit ring address of the vring available ring
287 Vring area description
294 :u64: a 64-bit integer contains vring index and flags
480 not processing any vring (because they are stopped), the device must:
535 All the modifications to memory pointed by vring "descriptor" should
536 be marked. Modifications to "used" vring should be marked if
651 features, or setting the initial vring base indices (to the same value
1145   vring addresses. In the ancillary data there is an array of file
1186   :request payload: vring state description
1194   :request payload: vring address description
1197   Sets the addresses of the different aspects of the vring.
1202   :request payload: vring descriptor index/indices
1205   Sets the next index to use for descriptors in this vring:
1209     next index in the *Used Ring* from the respective vring structure in
1216   (*a vring descriptor index for split virtqueues* vs. *vring descriptor
1222   :request payload: vring state description
1223   :reply payload: vring descriptor index/indices
1225   Stops the vring and returns the current descriptor index or indices:
1229       differ from the available ring index in the vring structure in
1233       value in the vring structure in memory, so this value is not
1241   (*a vring descriptor index for split virtqueues* vs. *vring descriptor
1257   Set the event file descriptor for adding buffers to the vring. It is
1260   Bits (0-7) of the payload contain the vring index. Bit 8 is the
1279   Bits (0-7) of the payload contain the vring index. Bit 8 is the
1298   Bits (0-7) of the payload contain the vring index. Bit 8 is the
1322   :request payload: vring state description
1325   Signal the back-end to enable or disable corresponding vring.
1398   :request payload: vring state description
1552   :request payload: vring state description
1558   the vring instead of signalling it using the vring's kick file
1769   :request payload: vring area description
1773   contained in the ``u64`` field of the vring area description. The
1777   offset (which is mmap offset) carried in the vring area
1792   :request payload: vring state description
1798   the vring instead of signalling this using the vring's call file
1806   :request payload: vring state description
1812   specific vring, instead of signalling the error file descriptor