search for: virtio_id_block

This small series enables virtio-net device type in VDUSE. With it, basic operation have been tested, both with virtio-vdpa and vhost-vdpa using DPDK Vhost library series adding VDUSE support using split rings layout (merged in DPDK v23.07-rc1). Control queue support (and so multiqueue) has also been tested, but requires a Kernel series from Jason Wang relaxing control queue polling [1] to

This small series enables virtio-net device type in VDUSE. With it, basic operation have been tested, both with virtio-vdpa and vhost-vdpa using DPDK Vhost library series adding VDUSE support using split rings layout (merged in DPDK v23.07-rc1). Control queue support (and so multiqueue) has also been tested, but requires a Kernel series from Jason Wang relaxing control queue polling [1] to

This small series enables virtio-net device type in VDUSE. With it, basic operation have been tested, both with virtio-vdpa and vhost-vdpa using DPDK Vhost library series adding VDUSE support using split rings layout (merged in DPDK v23.07-rc1). Control queue support (and so multiqueue) has also been tested, but requires a Kernel series from Jason Wang relaxing control queue polling [1] to

...work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ + +#include "virtio.h" +#include "block.h" +#include "pc.h" + +/* from Linux's linux/virtio_blk.h */ + +/* The ID for virtio_block */ +#define VIRTIO_ID_BLOCK 2 + +/* Feature bits */ +#define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */ +#define VIRTIO_BLK_F_SIZE_MAX 1 /* Indicates maximum segment size */ +#define VIRTIO_BLK_F_SEG_MAX 2 /* Indicates maximum # of segments */ + +struct virtio_blk_config +{ + uint64_t cap...

...work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ + +#include "virtio.h" +#include "block.h" +#include "pc.h" + +/* from Linux's linux/virtio_blk.h */ + +/* The ID for virtio_block */ +#define VIRTIO_ID_BLOCK 2 + +/* Feature bits */ +#define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */ +#define VIRTIO_BLK_F_SIZE_MAX 1 /* Indicates maximum segment size */ +#define VIRTIO_BLK_F_SEG_MAX 2 /* Indicates maximum # of segments */ + +struct virtio_blk_config +{ + uint64_t cap...

...b/drivers/vdpa/ifcvf/ifcvf_main.c index 1357c67014ab..4588484bd53d 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -410,7 +410,7 @@ static u64 ifcvf_vdpa_get_device_features(struct vdpa_device *vdpa_dev) u64 features; if (type == VIRTIO_ID_NET || type == VIRTIO_ID_BLOCK) - features = ifcvf_get_features(vf); + features = ifcvf_get_dev_features(vf); else { features = 0; IFCVF_ERR(pdev, "VIRTIO ID %u not supported\n", vf->dev_type); @@ -428,7 +428,7 @@ static int ifcvf_vdpa_set_driver_features(struct vdpa_device *vdpa_dev, u64 feat if (ret)...

...128,6 +132,7 @@ static struct class *vduse_class; > static struct cdev vduse_ctrl_cdev; > static struct cdev vduse_cdev; > static struct workqueue_struct *vduse_irq_wq; > +static struct workqueue_struct *vduse_irq_bound_wq; > > static u32 allowed_device_id[] = { > VIRTIO_ID_BLOCK, > @@ -708,6 +713,15 @@ static u32 vduse_vdpa_get_generation(struct vdpa_device *vdpa) > return dev->generation; > } > > +static int vduse_vdpa_set_vq_affinity(struct vdpa_device *vdpa, u16 idx, > + const struct cpumask *cpu_mask) > +{ > + struct vduse_de...

...b/drivers/vdpa/ifcvf/ifcvf_main.c index 1357c67014ab..4588484bd53d 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -410,7 +410,7 @@ static u64 ifcvf_vdpa_get_device_features(struct vdpa_device *vdpa_dev) u64 features; if (type == VIRTIO_ID_NET || type == VIRTIO_ID_BLOCK) - features = ifcvf_get_features(vf); + features = ifcvf_get_dev_features(vf); else { features = 0; IFCVF_ERR(pdev, "VIRTIO ID %u not supported\n", vf->dev_type); @@ -428,7 +428,7 @@ static int ifcvf_vdpa_set_driver_features(struct vdpa_device *vdpa_dev, u64 feat if (ret)...

...*virtblk_backend = "VIRTBLK_BACKEND"; > +static struct { > + struct mic_device_desc dd; > + struct mic_vqconfig vqconfig[1]; > + __u32 host_features, guest_acknowledgements; > + struct virtio_blk_config blk_config; > +} virtblk_dev_page = { > + .dd = { > + .type = VIRTIO_ID_BLOCK, > + .num_vq = ARRAY_SIZE(virtblk_dev_page.vqconfig), > + .feature_len = sizeof(virtblk_dev_page.host_features), > + .config_len = sizeof(virtblk_dev_page.blk_config), > + }, > + .vqconfig[0] = { > + .num = htole16(MIC_VRING_ENTRIES), > + }, > + .host_features = > +...

...*virtblk_backend = "VIRTBLK_BACKEND"; > +static struct { > + struct mic_device_desc dd; > + struct mic_vqconfig vqconfig[1]; > + __u32 host_features, guest_acknowledgements; > + struct virtio_blk_config blk_config; > +} virtblk_dev_page = { > + .dd = { > + .type = VIRTIO_ID_BLOCK, > + .num_vq = ARRAY_SIZE(virtblk_dev_page.vqconfig), > + .feature_len = sizeof(virtblk_dev_page.host_features), > + .config_len = sizeof(virtblk_dev_page.blk_config), > + }, > + .vqconfig[0] = { > + .num = htole16(MIC_VRING_ENTRIES), > + }, > + .host_features = > +...

Hi Rusty, These are a few fixes for the virtio-rng driver. These were tested using the not-yet-upstream virtio-rng device patch to qemu: http://thread.gmane.org/gmane.comp.emulators.qemu/152668 Please apply. Amit Shah (5): virtio ids: fix comment for virtio-rng virtio: rng: allow tasks to be killed that are waiting for rng input virtio: rng: don't wait on host when module is going

Hi Rusty, These are a few fixes for the virtio-rng driver. These were tested using the not-yet-upstream virtio-rng device patch to qemu: http://thread.gmane.org/gmane.comp.emulators.qemu/152668 Please apply. Amit Shah (5): virtio ids: fix comment for virtio-rng virtio: rng: allow tasks to be killed that are waiting for rng input virtio: rng: don't wait on host when module is going

...sysconfig/mic"; +static const char *virtblk_backend = "VIRTBLK_BACKEND"; +static struct { + struct mic_device_desc dd; + struct mic_vqconfig vqconfig[1]; + __u32 host_features, guest_acknowledgements; + struct virtio_blk_config blk_config; +} virtblk_dev_page = { + .dd = { + .type = VIRTIO_ID_BLOCK, + .num_vq = ARRAY_SIZE(virtblk_dev_page.vqconfig), + .feature_len = sizeof(virtblk_dev_page.host_features), + .config_len = sizeof(virtblk_dev_page.blk_config), + }, + .vqconfig[0] = { + .num = htole16(MIC_VRING_ENTRIES), + }, + .host_features = + htole32(1<<VIRTIO_BLK_F_SEG_MAX), + .bl...

Hi, These patches add support for S4 to virtio (pci) and all drivers. For each driver, all vqs are removed before hibernation, and then re-created after restore. Some driver-specific uninit and init work is also done in the freeze and restore functions. All the drivers in testing work fine: * virtio-blk is used for the only disk in the VM, IO works fine before and after. * virtio-console:

Hi, These patches add support for S4 to virtio (pci) and all drivers. For each driver, all vqs are removed before hibernation, and then re-created after restore. Some driver-specific uninit and init work is also done in the freeze and restore functions. All the drivers in testing work fine: * virtio-blk is used for the only disk in the VM, IO works fine before and after. * virtio-console:

...addr); + break; + case 4: + /* Most devices don't have 64 bit config fields. + * Block is an exception: first 8 bytes include + * a 64 bit capacity field. + */ + if (VIRTIO_HOST_IS_BIG_ENDIAN && + proxy->vdev->device_id == VIRTIO_ID_BLOCK && addr < 8) { + /* Swap first two words */ + addr ^= 0x4; + } + val = virtio_config_readl(proxy->vdev, addr); + break; + } + return val; +} + +static void virtio_pci_config_device_write(void *opaque, hwaddr addr, +...

...addr); + break; + case 4: + /* Most devices don't have 64 bit config fields. + * Block is an exception: first 8 bytes include + * a 64 bit capacity field. + */ + if (VIRTIO_HOST_IS_BIG_ENDIAN && + proxy->vdev->device_id == VIRTIO_ID_BLOCK && addr < 8) { + /* Swap first two words */ + addr ^= 0x4; + } + val = virtio_config_readl(proxy->vdev, addr); + break; + } + return val; +} + +static void virtio_pci_config_device_write(void *opaque, hwaddr addr, +...

...se 4: > + /* Most devices don't have 64 bit config fields. > + * Block is an exception: first 8 bytes include > + * a 64 bit capacity field. > + */ > + if (VIRTIO_HOST_IS_BIG_ENDIAN && > + proxy->vdev->device_id == VIRTIO_ID_BLOCK && addr < 8) { > + /* Swap first two words */ > + addr ^= 0x4; > + } > + val = virtio_config_readl(proxy->vdev, addr); > + break; > + } > + return val; > +} > + > +static void virtio_pci_config_device_write...

Hello, These patches are an initial attempt at supporting hibernation for virtio drivers. The default configuration of event_index=on doesn't work; i.e. restore from a hibernated image only works if the devices have event_index support turned off. I have not yet dug into this, but is most likely due to some state not being sync'ed. This could be related to the hack that is patch 3.

Hello, These patches are an initial attempt at supporting hibernation for virtio drivers. The default configuration of event_index=on doesn't work; i.e. restore from a hibernated image only works if the devices have event_index support turned off. I have not yet dug into this, but is most likely due to some state not being sync'ed. This could be related to the hack that is patch 3.