search for: desc_size

...io_pci.h | 9 ++++++++- 7 files changed, 56 insertions(+), 25 deletions(-) diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index 69c84a1..d2d6953 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -93,17 +93,17 @@ static unsigned desc_size(const struct lguest_device_desc *desc) } /* This gets the device's feature bits. */ -static u32 lg_get_features(struct virtio_device *vdev) +static u64 lg_get_features(struct virtio_device *vdev) { unsigned int i; - u32 features = 0; + u64 features = 0; struct lguest_device_desc *desc...

...io_pci.h | 9 ++++++++- 7 files changed, 56 insertions(+), 25 deletions(-) diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index 69c84a1..d2d6953 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -93,17 +93,17 @@ static unsigned desc_size(const struct lguest_device_desc *desc) } /* This gets the device's feature bits. */ -static u32 lg_get_features(struct virtio_device *vdev) +static u64 lg_get_features(struct virtio_device *vdev) { unsigned int i; - u32 features = 0; + u64 features = 0; struct lguest_device_desc *desc...

...p(&vq->desc_ring); + vhost_uninit_vmap(&vq->used_ring); +} + +static int vhost_setup_vmaps(struct vhost_virtqueue *vq, unsigned long avail, + unsigned long desc, unsigned long used) +{ + size_t event = vhost_has_feature(vq, VIRTIO_RING_F_EVENT_IDX) ? 2 : 0; + size_t avail_size, desc_size, used_size; + int ret; + + vhost_clean_vmaps(vq); + + avail_size = sizeof(*vq->avail) + + sizeof(*vq->avail->ring) * vq->num + event; + ret = vhost_init_vmap(&vq->avail_ring, avail, avail_size, false); + if (ret) { + vq_err(vq, "Fail to setup vmap for avail ring!\n&qu...

virtio: Virtio platform driver [PATCH 01/02] virtio: Break out lguest virtio code to virtio_lguest.c [PATCH 02/02] virtio: Add virtio platform driver These patches add a virtio platform driver to the Linux kernel. This platform driver has the same role as the virtio_pci driver, but instead of building on top of emulated PCI this driver is making use of the platform bus together with driver

virtio: Virtio platform driver [PATCH 01/02] virtio: Break out lguest virtio code to virtio_lguest.c [PATCH 02/02] virtio: Add virtio platform driver These patches add a virtio platform driver to the Linux kernel. This platform driver has the same role as the virtio_pci driver, but instead of building on top of emulated PCI this driver is making use of the platform bus together with driver

virtio: Virtio platform driver [PATCH 01/02] virtio: Break out lguest virtio code to virtio_lguest.c [PATCH 02/02] virtio: Add virtio platform driver These patches add a virtio platform driver to the Linux kernel. This platform driver has the same role as the virtio_pci driver, but instead of building on top of emulated PCI this driver is making use of the platform bus together with driver

virtio: Virtio platform driver [PATCH 01/02] virtio: Break out lguest virtio code to virtio_lguest.c [PATCH 02/02] virtio: Add virtio platform driver These patches add a virtio platform driver to the Linux kernel. This platform driver has the same role as the virtio_pci driver, but instead of building on top of emulated PCI this driver is making use of the platform bus together with driver

...ESS) { + printf("Failed to exit boot services: 0x%016lx\n", status); return -1; + } bp->efi.memmap = (uint32_t)(unsigned long)map; - bp->efi.memmap_size = nr_entries * desc_sz; + bp->efi.memmap_size = map_sz; bp->efi.systab = (uint32_t)(unsigned long)ST; bp->efi.desc_size = desc_sz; bp->efi.desc_version = desc_ver; @@ -1033,6 +1098,7 @@ static int exit_boot(struct boot_params *bp) * e820 map because it will most likely have changed in the * interim. */ + nr_entries = map_sz / desc_sz; e = e820buf = bp->e820_map; for (i = 0; i < nr_entries &am...

...rtio_device { void *dev; - u32 features; + u64 features; }; struct virtqueue { diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index 97aeb7d..d81170a 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -94,7 +94,7 @@ static unsigned desc_size(const struct lguest_device_desc *desc) } /* This gets the device's feature bits. */ -static u32 lg_get_features(struct virtio_device *vdev) +static u64 lg_get_features(struct virtio_device *vdev) { unsigned int i; u32 features = 0; diff --git a/drivers/misc/mic/card/mic_virtio.c b/driv...

...rtio_device { void *dev; - u32 features; + u64 features; }; struct virtqueue { diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index 97aeb7d..d81170a 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -94,7 +94,7 @@ static unsigned desc_size(const struct lguest_device_desc *desc) } /* This gets the device's feature bits. */ -static u32 lg_get_features(struct virtio_device *vdev) +static u64 lg_get_features(struct virtio_device *vdev) { unsigned int i; u32 features = 0; diff --git a/drivers/misc/mic/card/mic_virtio.c b/driv...

...rtio_device { void *dev; - u32 features; + u64 features; }; struct virtqueue { diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index 97aeb7d..d81170a 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -94,7 +94,7 @@ static unsigned desc_size(const struct lguest_device_desc *desc) } /* This gets the device's feature bits. */ -static u32 lg_get_features(struct virtio_device *vdev) +static u64 lg_get_features(struct virtio_device *vdev) { unsigned int i; u32 features = 0; diff --git a/drivers/misc/mic/card/mic_virtio.c b/driv...

...rtio_device { void *dev; - u32 features; + u64 features; }; struct virtqueue { diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index 97aeb7d..d81170a 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -94,7 +94,7 @@ static unsigned desc_size(const struct lguest_device_desc *desc) } /* This gets the device's feature bits. */ -static u32 lg_get_features(struct virtio_device *vdev) +static u64 lg_get_features(struct virtio_device *vdev) { unsigned int i; u32 features = 0; diff --git a/drivers/misc/mic/card/mic_virtio.c b/driv...

...L << VIRTIO_CONSOLE_F_MULTIPORT); } static DEFINE_SPINLOCK(dma_bufs_lock); diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index c831c47..49d04d5 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -94,7 +94,7 @@ static unsigned desc_size(const struct lguest_device_desc *desc) } /* This gets the device's feature bits. */ -static u32 lg_get_features(struct virtio_device *vdev) +static u64 lg_get_features(struct virtio_device *vdev) { unsigned int i; u32 features = 0; diff --git a/drivers/misc/mic/card/mic_virtio.c b/driv...

...L << VIRTIO_CONSOLE_F_MULTIPORT); } static DEFINE_SPINLOCK(dma_bufs_lock); diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index c831c47..49d04d5 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -94,7 +94,7 @@ static unsigned desc_size(const struct lguest_device_desc *desc) } /* This gets the device's feature bits. */ -static u32 lg_get_features(struct virtio_device *vdev) +static u64 lg_get_features(struct virtio_device *vdev) { unsigned int i; u32 features = 0; diff --git a/drivers/misc/mic/card/mic_virtio.c b/driv...

Hi: This series tries to access virtqueue metadata through kernel virtual address instead of copy_user() friends since they had too much overheads like checks, spec barriers or even hardware feature toggling. Test shows about 24% improvement on TX PPS. It should benefit other cases as well. Please review Jason Wang (3): vhost: generalize adding used elem vhost: fine grain userspace memory

Hi: This series tries to access virtqueue metadata through kernel virtual address instead of copy_user() friends since they had too much overheads like checks, spec barriers or even hardware feature toggling. Test shows about 24% improvement on TX PPS. It should benefit other cases as well. Please review Jason Wang (3): vhost: generalize adding used elem vhost: fine grain userspace memory

...rtio_device { void *dev; - u32 features; + u64 features; }; struct virtqueue { diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index 97aeb7d..d81170a 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -94,7 +94,7 @@ static unsigned desc_size(const struct lguest_device_desc *desc) } /* This gets the device's feature bits. */ -static u32 lg_get_features(struct virtio_device *vdev) +static u64 lg_get_features(struct virtio_device *vdev) { unsigned int i; u32 features = 0; diff --git a/drivers/misc/mic/card/mic_virtio.c b/driv...

...rtio_device { void *dev; - u32 features; + u64 features; }; struct virtqueue { diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index 97aeb7d..d81170a 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -94,7 +94,7 @@ static unsigned desc_size(const struct lguest_device_desc *desc) } /* This gets the device's feature bits. */ -static u32 lg_get_features(struct virtio_device *vdev) +static u64 lg_get_features(struct virtio_device *vdev) { unsigned int i; u32 features = 0; diff --git a/drivers/misc/mic/card/mic_virtio.c b/driv...

...esc) -{ - return (u8 *)(kvm_vq_config(desc) + desc->num_vq); -} - -static u8 *kvm_vq_configspace(const struct kvm_device_desc *desc) -{ - return kvm_vq_features(desc) + desc->feature_len * 2; -} - -/* - * The total size of the config page used by this device (incl. desc) - */ -static unsigned desc_size(const struct kvm_device_desc *desc) -{ - return sizeof(*desc) - + desc->num_vq * sizeof(struct kvm_vqconfig) - + desc->feature_len * 2 - + desc->config_len; -} - -/* This gets the device's feature bits. */ -static u64 kvm_get_features(struct virtio_device *vdev) -{ - unsigned int i;...

...esc) -{ - return (u8 *)(kvm_vq_config(desc) + desc->num_vq); -} - -static u8 *kvm_vq_configspace(const struct kvm_device_desc *desc) -{ - return kvm_vq_features(desc) + desc->feature_len * 2; -} - -/* - * The total size of the config page used by this device (incl. desc) - */ -static unsigned desc_size(const struct kvm_device_desc *desc) -{ - return sizeof(*desc) - + desc->num_vq * sizeof(struct kvm_vqconfig) - + desc->feature_len * 2 - + desc->config_len; -} - -/* This gets the device's feature bits. */ -static u64 kvm_get_features(struct virtio_device *vdev) -{ - unsigned int i;...