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/openbmc/linux/Documentation/driver-api/virtio/
H A Dvirtio.rst24 Device - Driver communication: virtqueues
37 virtqueues, which are actually ring buffers [#f1]_ of buffer descriptors
46 Refer to Chapter 2.5 ("Virtqueues") of the virtio spec (`[1]`_) for the
47 reference definitions of virtqueues and "Virtqueues and virtio ring: How
126 At this point, the virtqueues will be allocated and configured by
140 _`[2]` Virtqueues and virtio ring: How the data travels
141 https://www.redhat.com/en/blog/virtqueues-and-virtio-ring-how-data-travels
H A Dwriting_virtio_drivers.rst22 and configure the virtqueues for the device according to its spec, the
23 configuration of the virtqueues in the driver side must match the
87 /* remove virtqueues */
124 ("DRIVER_OK"). The virtqueues are anyway enabled automatically by the
130 In any case, the virtqueues need to be enabled before adding buffers to
/openbmc/linux/Documentation/filesystems/
H A Dvirtiofs.rst68 Mapping /dev/fuse to virtqueues requires solving differences in semantics
69 between /dev/fuse and virtqueues. Each time the /dev/fuse device is read, the
71 prioritize certain requests over others. Virtqueues have queue semantics and
/openbmc/linux/tools/include/uapi/linux/
H A Dvhost.h48 /* By default, a device gets one vhost_worker that its virtqueues share. This
50 * for the device. It can later be bound to 1 or more of its virtqueues using
93 * virtqueues.
96 * is no longer attached to any virtqueues, it can be freed with
182 /* Get the count of all virtqueues */
/openbmc/linux/include/uapi/linux/
H A Dvhost.h48 /* By default, a device gets one vhost_worker that its virtqueues share. This
50 * for the device. It can later be bound to 1 or more of its virtqueues using
93 * virtqueues.
96 * is no longer attached to any virtqueues, it can be freed with
182 /* Get the count of all virtqueues */
H A Dvirtio_scmi.h18 /* Virtqueues */
H A Dvirtio_net.h299 * the device, the device will not steer new packets on receive virtqueues
300 * other than specified nor read from transmit virtqueues other than specified.
301 * Accordingly, driver should not transmit new packets on virtqueues other than
H A Dvduse.h28 * @vq_num: the number of virtqueues
132 * Setup the specified virtqueue. Make sure all virtqueues have been
/openbmc/qemu/linux-headers/linux/
H A Dvhost.h48 /* By default, a device gets one vhost_worker that its virtqueues share. This
50 * for the device. It can later be bound to 1 or more of its virtqueues using
93 * virtqueues.
96 * is no longer attached to any virtqueues, it can be freed with
226 /* Get the count of all virtqueues */
H A Dvduse.h28 * @vq_num: the number of virtqueues
132 * Setup the specified virtqueue. Make sure all virtqueues have been
/openbmc/linux/drivers/virtio/
H A Dvirtio_pci_common.h37 /* the list node for the virtqueues list */
59 struct list_head virtqueues; member
93 * virtqueues Thus, we need at least 2 vectors for MSI. */
H A Dvirtio_vdpa.c35 struct list_head virtqueues; member
42 /* the list node for the virtqueues list */
252 list_add(&info->node, &vd_dev->virtqueues); in virtio_vdpa_setup_vq()
503 INIT_LIST_HEAD(&vd_dev->virtqueues); in virtio_vdpa_probe()
H A Dvirtio_pci_common.c58 /* Notify all virtqueues on an interrupt. */
67 list_for_each_entry(info, &vp_dev->virtqueues, node) { in vp_vring_interrupt()
161 "%s-virtqueues", name); in vp_request_msix_vectors()
197 list_add(&info->node, &vp_dev->virtqueues); in vp_setup_vq()
537 INIT_LIST_HEAD(&vp_dev->virtqueues); in virtio_pci_probe()
H A Dvirtio_mmio.c94 struct list_head virtqueues; member
101 /* the list node for the virtqueues list */
299 /* Notify all virtqueues on an interrupt. */
319 list_for_each_entry(info, &vm_dev->virtqueues, node) in vm_interrupt()
470 list_add(&info->node, &vm_dev->virtqueues); in vm_setup_vq()
630 INIT_LIST_HEAD(&vm_dev->virtqueues); in virtio_mmio_probe()
/openbmc/u-boot/include/
H A Dvirtio.h163 * find_vqs() - find virtqueues and instantiate them
166 * @nvqs: the number of virtqueues to find
167 * @vqs: on success, includes new virtqueues
173 * del_vqs() - free virtqueues found by find_vqs()
296 * virtio_find_vqs() - find virtqueues and instantiate them
299 * @nvqs: the number of virtqueues to find
300 * @vqs: on success, includes new virtqueues
307 * virtio_del_vqs() - free virtqueues found by find_vqs()
/openbmc/qemu/subprojects/libvduse/
H A Dlibvduse.h191 * @num_queues: the number of virtqueues
205 * @num_queues: the number of virtqueues
222 * @num_queues: the number of virtqueues
/openbmc/u-boot/drivers/virtio/
H A Dvirtio_net.h240 * steer new packets on receive virtqueues other than specified nor read from
241 * transmit virtqueues other than specified. Accordingly, driver should not
242 * transmit new packets on virtqueues other than specified.
/openbmc/qemu/docs/interop/
H A Dvhost-user.rst27 *back-end*. The *front-end* is the application that shares its virtqueues, in
28 our case QEMU. The *back-end* is the consumer of the virtqueues.
111 A vring descriptor index for split virtqueues
128 Vring descriptor indices for packed virtqueues
313 :num queues: a 16-bit number of virtqueues
315 :queue size: a 16-bit size of virtqueues
490 Many devices have a fixed number of virtqueues. In this case the front-end
491 already knows the number of available virtqueues without communicating with the
494 Some devices do not have a fixed number of virtqueues. Instead the maximum
495 number of virtqueues is chosen by the back-end. The number can depend on host
[all …]
/openbmc/qemu/include/standard-headers/linux/
H A Dvirtio_scmi.h18 /* Virtqueues */
H A Dvirtio_net.h300 * the device, the device will not steer new packets on receive virtqueues
301 * other than specified nor read from transmit virtqueues other than specified.
302 * Accordingly, driver should not transmit new packets on virtqueues other than
/openbmc/qemu/tests/qtest/libqos/
H A Dvirtio-net.h32 int n_queues; /* total number of virtqueues (rx, tx, ctrl) */
/openbmc/linux/Documentation/userspace-api/
H A Dvduse.rst101 configuration space, the number of virtqueues and so on for this emulated device.
221 3. Setup the kick eventfd for the specified virtqueues with the VDUSE_VQ_SETUP_KICKFD
/openbmc/linux/include/linux/
H A Dvirtio_config.h52 * @find_vqs: find virtqueues and instantiate them.
54 * nvqs: the number of virtqueues to find
55 * vqs: on success, includes new virtqueues
61 * @del_vqs: free virtqueues found by find_vqs().
H A Dvirtio.h16 * @list: the chain of virtqueues for this device
118 * @vqs: the list of virtqueues for this device.
/openbmc/qemu/include/hw/virtio/
H A Dvirtio-scsi.h37 /* Number of virtqueues that are always present */

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