search for: set_vq

The CCW_CMD_SET_VQ command has a different format for revision 1+ devices, allowing to specify a more complex virtqueue layout. For now, we stay however with the old layout and simply use the new command format for virtio-1 devices. Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- drivers/s390/k...

Support the new CCW_CMD_SET_VQ format for virtio-1 devices. While we're at it, refactor the code a bit and enforce big endian fields (which had always been required, even for legacy). Reviewed-by: Thomas Huth <thuth at linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- hw/s390x/...

Support the new CCW_CMD_SET_VQ format for virtio-1 devices. While we're at it, refactor the code a bit and enforce big endian fields (which had always been required, even for legacy). Reviewed-by: Thomas Huth <thuth at linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck at de.ibm.com> --- hw/s390x/...

...: cull virtio_bus_set_vdev_features > virtio: support more feature bits > s390x/virtio-ccw: fix check for WRITE_FEAT > virtio: introduce legacy virtio devices > virtio: allow virtio-1 queue layout > dataplane: allow virtio-1 devices > s390x/virtio-ccw: support virtio-1 set_vq format > virtio-net/virtio-blk: enable virtio 1.0 > s390x/virtio-ccw: enable virtio 1.0 > > Thomas Huth (3): > linux-headers/virtio_config: Update with VIRTIO_F_VERSION_1 > s390x/css: Add a callback for when subchannel gets disabled > s390x/virtio-ccw: add virtio set...

...: cull virtio_bus_set_vdev_features > virtio: support more feature bits > s390x/virtio-ccw: fix check for WRITE_FEAT > virtio: introduce legacy virtio devices > virtio: allow virtio-1 queue layout > dataplane: allow virtio-1 devices > s390x/virtio-ccw: support virtio-1 set_vq format > s390x/virtio-ccw: enable virtio 1.0 > > Thomas Huth (3): > linux-headers/virtio_config: Update with VIRTIO_F_VERSION_1 > s390x/css: Add a callback for when subchannel gets disabled > s390x/virtio-ccw: add virtio set-revision call > > hw/9pfs/virtio-9p-dev...

...: cull virtio_bus_set_vdev_features > virtio: support more feature bits > s390x/virtio-ccw: fix check for WRITE_FEAT > virtio: introduce legacy virtio devices > virtio: allow virtio-1 queue layout > dataplane: allow virtio-1 devices > s390x/virtio-ccw: support virtio-1 set_vq format > virtio: disallow late feature changes for virtio-1 > virtio: allow to fail setting status > s390x/virtio-ccw: enable virtio 1.0 > virtio-net: no writeable mac for virtio-1 > virtio-net: support longer header > virtio-net: enable virtio 1.0 > > Thomas Hu...

...gt; +} [...] > > +/* Only available for split ring */ > > const struct vring *virtqueue_get_vring(struct virtqueue *vq) > > { > > A possible issue with this is: > > After commit d4674240f31f8c4289abba07d64291c6ddce51bc ("KVM: s390: > virtio-ccw revision 1 SET_VQ"). CCW tries to use > virtqueue_get_avail()/virtqueue_get_used(). Looks like a bug either here or > ccw code. Do we still need to support: include/linux/virtio.h /* * Legacy accessors -- in almost all cases, these are the wrong functions * to use. */ static inline void *virtqueue_ge...

...t> Cc: Rusty Russell <rusty at rustcorp.com.au> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> ---------------------------------------------------------------- Cornelia Huck (4): virtio: allow transports to get avail/used addresses KVM: s390: virtio-ccw revision 1 SET_VQ KVM: s390: enable virtio-ccw revision 1 virtio_ccw: finalize_features error handling Jason Wang (1): vhost: remove unnecessary forward declarations in vhost.h Michael S. Tsirkin (64): virtio: add low-level APIs for feature bits virtio: use u32, not bitmap for feature...

...t> Cc: Rusty Russell <rusty at rustcorp.com.au> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> ---------------------------------------------------------------- Cornelia Huck (4): virtio: allow transports to get avail/used addresses KVM: s390: virtio-ccw revision 1 SET_VQ KVM: s390: enable virtio-ccw revision 1 virtio_ccw: finalize_features error handling Jason Wang (1): vhost: remove unnecessary forward declarations in vhost.h Michael S. Tsirkin (64): virtio: add low-level APIs for feature bits virtio: use u32, not bitmap for feature...

...ock); + ccw->cda = (__u32)virt_to_phys(&vcdev->dma_area->config_block); ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_VQ_CONF); if (ret) return ret; @@ -454,7 +454,7 @@ static void virtio_ccw_del_vq(struct virtqueue *vq, struct ccw1 *ccw) } ccw->cmd_code = CCW_CMD_SET_VQ; ccw->flags = 0; - ccw->cda = (__u32)(unsigned long)(info->info_block); + ccw->cda = (__u32)virt_to_phys(info->info_block); ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_SET_VQ | index); /* @@ -556,7 +556,7 @@ static struct virtqueue *virtio_ccw_setup_vq(struct virti...

...ock); + ccw->cda = (__u32)virt_to_phys(&vcdev->dma_area->config_block); ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_VQ_CONF); if (ret) return ret; @@ -454,7 +454,7 @@ static void virtio_ccw_del_vq(struct virtqueue *vq, struct ccw1 *ccw) } ccw->cmd_code = CCW_CMD_SET_VQ; ccw->flags = 0; - ccw->cda = (__u32)(unsigned long)(info->info_block); + ccw->cda = (__u32)virt_to_phys(info->info_block); ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_SET_VQ | index); /* @@ -556,7 +556,7 @@ static struct virtqueue *virtio_ccw_setup_vq(struct virti...

...EXPORT_SYMBOL_GPL(virtqueue_get_used_addr); > > +/* Only available for split ring */ > const struct vring *virtqueue_get_vring(struct virtqueue *vq) > { A possible issue with this is: After commit d4674240f31f8c4289abba07d64291c6ddce51bc ("KVM: s390: virtio-ccw revision 1 SET_VQ"). CCW tries to use virtqueue_get_avail()/virtqueue_get_used(). Looks like a bug either here or ccw code. Thanks > return &to_vvq(vq)->vring; > diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h > index bbf32524ab27..a0075894ad16 100644 > --- a/inc...

...EXPORT_SYMBOL_GPL(virtqueue_get_used_addr); > > +/* Only available for split ring */ > const struct vring *virtqueue_get_vring(struct virtqueue *vq) > { A possible issue with this is: After commit d4674240f31f8c4289abba07d64291c6ddce51bc ("KVM: s390: virtio-ccw revision 1 SET_VQ"). CCW tries to use virtqueue_get_avail()/virtqueue_get_used(). Looks like a bug either here or ccw code. Thanks > return &to_vvq(vq)->vring; > diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h > index bbf32524ab27..a0075894ad16 100644 > --- a/inc...

...y Cornelia Huck (9): virtio: cull virtio_bus_set_vdev_features virtio: support more feature bits s390x/virtio-ccw: fix check for WRITE_FEAT virtio: introduce legacy virtio devices virtio: allow virtio-1 queue layout dataplane: allow virtio-1 devices s390x/virtio-ccw: support virtio-1 set_vq format virtio-net/virtio-blk: enable virtio 1.0 s390x/virtio-ccw: enable virtio 1.0 Thomas Huth (3): linux-headers/virtio_config: Update with VIRTIO_F_VERSION_1 s390x/css: Add a callback for when subchannel gets disabled s390x/virtio-ccw: add virtio set-revision call hw/9pfs/virtio-9p-...

...y Cornelia Huck (9): virtio: cull virtio_bus_set_vdev_features virtio: support more feature bits s390x/virtio-ccw: fix check for WRITE_FEAT virtio: introduce legacy virtio devices virtio: allow virtio-1 queue layout dataplane: allow virtio-1 devices s390x/virtio-ccw: support virtio-1 set_vq format virtio-net/virtio-blk: enable virtio 1.0 s390x/virtio-ccw: enable virtio 1.0 Thomas Huth (3): linux-headers/virtio_config: Update with VIRTIO_F_VERSION_1 s390x/css: Add a callback for when subchannel gets disabled s390x/virtio-ccw: add virtio set-revision call hw/9pfs/virtio-9p-...

...Cornelia Huck (13): virtio: cull virtio_bus_set_vdev_features virtio: support more feature bits s390x/virtio-ccw: fix check for WRITE_FEAT virtio: introduce legacy virtio devices virtio: allow virtio-1 queue layout dataplane: allow virtio-1 devices s390x/virtio-ccw: support virtio-1 set_vq format virtio: disallow late feature changes for virtio-1 virtio: allow to fail setting status s390x/virtio-ccw: enable virtio 1.0 virtio-net: no writeable mac for virtio-1 virtio-net: support longer header virtio-net: enable virtio 1.0 Thomas Huth (3): linux-headers/virtio_config: U...

...Cornelia Huck (13): virtio: cull virtio_bus_set_vdev_features virtio: support more feature bits s390x/virtio-ccw: fix check for WRITE_FEAT virtio: introduce legacy virtio devices virtio: allow virtio-1 queue layout dataplane: allow virtio-1 devices s390x/virtio-ccw: support virtio-1 set_vq format virtio: disallow late feature changes for virtio-1 virtio: allow to fail setting status s390x/virtio-ccw: enable virtio 1.0 virtio-net: no writeable mac for virtio-1 virtio-net: support longer header virtio-net: enable virtio 1.0 Thomas Huth (3): linux-headers/virtio_config: U...

.... Cornelia Huck (8): virtio: cull virtio_bus_set_vdev_features virtio: support more feature bits s390x/virtio-ccw: fix check for WRITE_FEAT virtio: introduce legacy virtio devices virtio: allow virtio-1 queue layout dataplane: allow virtio-1 devices s390x/virtio-ccw: support virtio-1 set_vq format s390x/virtio-ccw: enable virtio 1.0 Thomas Huth (3): linux-headers/virtio_config: Update with VIRTIO_F_VERSION_1 s390x/css: Add a callback for when subchannel gets disabled s390x/virtio-ccw: add virtio set-revision call hw/9pfs/virtio-9p-device.c | 7 +- hw/block/datap...

.... Cornelia Huck (8): virtio: cull virtio_bus_set_vdev_features virtio: support more feature bits s390x/virtio-ccw: fix check for WRITE_FEAT virtio: introduce legacy virtio devices virtio: allow virtio-1 queue layout dataplane: allow virtio-1 devices s390x/virtio-ccw: support virtio-1 set_vq format s390x/virtio-ccw: enable virtio 1.0 Thomas Huth (3): linux-headers/virtio_config: Update with VIRTIO_F_VERSION_1 s390x/css: Add a callback for when subchannel gets disabled s390x/virtio-ccw: add virtio set-revision call hw/9pfs/virtio-9p-device.c | 7 +- hw/block/datap...

...set) - virtio-net and virtio-blk only so far. I consider this patchset a starting point for further discussions. Cornelia Huck (5): virtio: endianess conversion helpers virtio: allow transports to get avail/used addresses virtio_blk: use virtio v1.0 endian KVM: s390: virtio-ccw revision 1 SET_VQ KVM: s390: enable virtio-ccw revision 1 Rusty Russell (5): virtio: use u32, not bitmap for struct virtio_device's features virtio: add support for 64 bit features. virtio_ring: implement endian reversal based on VERSION_1 feature. virtio_config: endian conversion for v1.0. virtio_n...