search for: virtio_pci_no_modern

...include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h index 35b552c..28c2ce0 100644 --- a/include/uapi/linux/virtio_pci.h +++ b/include/uapi/linux/virtio_pci.h @@ -99,4 +99,66 @@ /* Vector value used to disable MSI for queue */ #define VIRTIO_MSI_NO_VECTOR 0xffff +#ifndef VIRTIO_PCI_NO_MODERN + +/* IDs for different capabilities. Must all exist. */ + +/* Common configuration */ +#define VIRTIO_PCI_CAP_COMMON_CFG 1 +/* Notifications */ +#define VIRTIO_PCI_CAP_NOTIFY_CFG 2 +/* ISR access */ +#define VIRTIO_PCI_CAP_ISR_CFG 3 +/* Device specific confiuration */ +#define VIRTIO_PCI_CAP_DEV...

...include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h index 35b552c..28c2ce0 100644 --- a/include/uapi/linux/virtio_pci.h +++ b/include/uapi/linux/virtio_pci.h @@ -99,4 +99,66 @@ /* Vector value used to disable MSI for queue */ #define VIRTIO_MSI_NO_VECTOR 0xffff +#ifndef VIRTIO_PCI_NO_MODERN + +/* IDs for different capabilities. Must all exist. */ + +/* Common configuration */ +#define VIRTIO_PCI_CAP_COMMON_CFG 1 +/* Notifications */ +#define VIRTIO_PCI_CAP_NOTIFY_CFG 2 +/* ISR access */ +#define VIRTIO_PCI_CAP_ISR_CFG 3 +/* Device specific confiuration */ +#define VIRTIO_PCI_CAP_DEV...

...N_Q_ENABLE 28 +#define VIRTIO_PCI_COMMON_Q_NOFF 30 +#define VIRTIO_PCI_COMMON_Q_DESCLO 32 +#define VIRTIO_PCI_COMMON_Q_DESCHI 36 +#define VIRTIO_PCI_COMMON_Q_AVAILLO 40 +#define VIRTIO_PCI_COMMON_Q_AVAILHI 44 +#define VIRTIO_PCI_COMMON_Q_USEDLO 48 +#define VIRTIO_PCI_COMMON_Q_USEDHI 52 + #endif /* VIRTIO_PCI_NO_MODERN */ #endif diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c index 6f63b4c..ba04055 100644 --- a/drivers/virtio/virtio_pci_modern.c +++ b/drivers/virtio/virtio_pci_modern.c @@ -470,6 +470,67 @@ static inline int virtio_pci_find_capability(struct pci_dev *dev, u8...

...N_Q_ENABLE 28 +#define VIRTIO_PCI_COMMON_Q_NOFF 30 +#define VIRTIO_PCI_COMMON_Q_DESCLO 32 +#define VIRTIO_PCI_COMMON_Q_DESCHI 36 +#define VIRTIO_PCI_COMMON_Q_AVAILLO 40 +#define VIRTIO_PCI_COMMON_Q_AVAILHI 44 +#define VIRTIO_PCI_COMMON_Q_USEDLO 48 +#define VIRTIO_PCI_COMMON_Q_USEDHI 52 + #endif /* VIRTIO_PCI_NO_MODERN */ #endif diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c index 6f63b4c..ba04055 100644 --- a/drivers/virtio/virtio_pci_modern.c +++ b/drivers/virtio/virtio_pci_modern.c @@ -470,6 +470,67 @@ static inline int virtio_pci_find_capability(struct pci_dev *dev, u8...

Based on Rusty's patches. Coding style and funny jokes are his. Bugs and a star wars reference (should be easy to spot) are mine. Untested, but useful as basis for beginning the qemu work. TODO: = simplify probing: use a common probe function, probe with modern driver first, if that fails - probe with legacy driver. BUGS: ATM legacy driver can win and drive a transitional device

Based on Rusty's patches. Coding style and funny jokes are his. Bugs and a star wars reference (should be easy to spot) are mine. Untested, but useful as basis for beginning the qemu work. TODO: = simplify probing: use a common probe function, probe with modern driver first, if that fails - probe with legacy driver. BUGS: ATM legacy driver can win and drive a transitional device

This is on top of 3.19 master + my bugfix patches, and adds virtio 1.0 support to virtio pci. This is 3.20 material I think. Would like to get feedback on s390 change as it's untested. Michael S Tsirkin (2): pci: add pci_iomap_range s390: add pci_iomap_range Michael S. Tsirkin (2): virtio_pci: modern driver virtio_pci: macros for PCI layout offsets. Rusty Russell (1): virtio-pci:

This is on top of 3.19 master + my bugfix patches, and adds virtio 1.0 support to virtio pci. This is 3.20 material I think. Would like to get feedback on s390 change as it's untested. Michael S Tsirkin (2): pci: add pci_iomap_range s390: add pci_iomap_range Michael S. Tsirkin (2): virtio_pci: modern driver virtio_pci: macros for PCI layout offsets. Rusty Russell (1): virtio-pci:

This is just repost of all patches with fixups squashed in - convenient if you just want to remove old ones from queue and apply new ones. I also tweaked commit log for patch "virtio_pci: modern driver" I also included Gerd's tag: Tested-by: Gerd Hoffmann <kraxel at redhat.com> You can find it all before the rebase -i --autosquash in my tree:

This is just repost of all patches with fixups squashed in - convenient if you just want to remove old ones from queue and apply new ones. I also tweaked commit log for patch "virtio_pci: modern driver" I also included Gerd's tag: Tested-by: Gerd Hoffmann <kraxel at redhat.com> You can find it all before the rebase -i --autosquash in my tree:

This is just the full patchset reposted with fixups in correct order, before squashing them. I also tweaked commit log for patch "virtio_pci: modern driver" I also included Gerd's tag: Tested-by: Gerd Hoffmann <kraxel at redhat.com> You can find it all before the rebase -i --autosquash in my tree: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git virtio-next

This is just the full patchset reposted with fixups in correct order, before squashing them. I also tweaked commit log for patch "virtio_pci: modern driver" I also included Gerd's tag: Tested-by: Gerd Hoffmann <kraxel at redhat.com> You can find it all before the rebase -i --autosquash in my tree: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git virtio-next

Changes since v2: handling for devices without config space (e.g. rng) reduce # of mappings for VQs These patches seem to work fine on my virtio-1.0 qemu branch. There haven't been any bugs since v2: just minor cleanups and enhancements. QEMU side is still undergoing polishing, but is already testable. Rusty, what do you think? Let's merge these for 3.20? Also - will you be doing that

Changes since v2: handling for devices without config space (e.g. rng) reduce # of mappings for VQs These patches seem to work fine on my virtio-1.0 qemu branch. There haven't been any bugs since v2: just minor cleanups and enhancements. QEMU side is still undergoing polishing, but is already testable. Rusty, what do you think? Let's merge these for 3.20? Also - will you be doing that

.... */ +#define VIRTIO_PCI_VRING_ALIGN 4096 + +#endif /* VIRTIO_PCI_NO_LEGACY */ + +/* The bit of the ISR which indicates a device configuration change. */ +#define VIRTIO_PCI_ISR_CONFIG 0x2 +/* Vector value used to disable MSI for queue */ +#define VIRTIO_MSI_NO_VECTOR 0xffff + +#ifndef VIRTIO_PCI_NO_MODERN + +/* IDs for different capabilities. Must all exist. */ + +/* Common configuration */ +#define VIRTIO_PCI_CAP_COMMON_CFG 1 +/* Notifications */ +#define VIRTIO_PCI_CAP_NOTIFY_CFG 2 +/* ISR access */ +#define VIRTIO_PCI_CAP_ISR_CFG 3 +/* Device specific configuration */ +#define VIRTIO_PCI_CAP_DE...

.... */ +#define VIRTIO_PCI_VRING_ALIGN 4096 + +#endif /* VIRTIO_PCI_NO_LEGACY */ + +/* The bit of the ISR which indicates a device configuration change. */ +#define VIRTIO_PCI_ISR_CONFIG 0x2 +/* Vector value used to disable MSI for queue */ +#define VIRTIO_MSI_NO_VECTOR 0xffff + +#ifndef VIRTIO_PCI_NO_MODERN + +/* IDs for different capabilities. Must all exist. */ + +/* Common configuration */ +#define VIRTIO_PCI_CAP_COMMON_CFG 1 +/* Notifications */ +#define VIRTIO_PCI_CAP_NOTIFY_CFG 2 +/* ISR access */ +#define VIRTIO_PCI_CAP_ISR_CFG 3 +/* Device specific configuration */ +#define VIRTIO_PCI_CAP_DE...

Hi: This is a new version of trying to enable tx interrupts for virtio-net. We used to try to avoid tx interrupts and orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral other side effects e.g: - Several other functions which depends on socket accounting can not work correctly (e.g TCP Small Queue) - No tx completion which make BQL or packet

Hi: This is a new version of trying to enable tx interrupts for virtio-net. We used to try to avoid tx interrupts and orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral other side effects e.g: - Several other functions which depends on socket accounting can not work correctly (e.g TCP Small Queue) - No tx completion which make BQL or packet