search for: pci_iomap

...Cc: linux-pci at vger.kernel.org Acked-by: Arnd Bergmann <arnd at arndb.de> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> --- Bjorn, can you please ack this for merging through the virtio tree? include/asm-generic/pci_iomap.h | 10 ++++++++++ lib/pci_iomap.c | 35 ++++++++++++++++++++++++++++++----- 2 files changed, 40 insertions(+), 5 deletions(-) diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h index ce37349..7389c87 100644 --- a/include/asm-generic/pci_iomap.h +++ b/in...

...Cc: linux-pci at vger.kernel.org Acked-by: Arnd Bergmann <arnd at arndb.de> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> --- Bjorn, can you please ack this for merging through the virtio tree? include/asm-generic/pci_iomap.h | 10 ++++++++++ lib/pci_iomap.c | 35 ++++++++++++++++++++++++++++++----- 2 files changed, 40 insertions(+), 5 deletions(-) diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h index ce37349..7389c87 100644 --- a/include/asm-generic/pci_iomap.h +++ b/in...

...Virtio drivers should map the part of the range they need, not necessarily all of it. They also need non-cacheable mapping even for prefetchable BARs. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> --- include/asm-generic/pci_iomap.h | 5 +++++ lib/pci_iomap.c | 46 +++++++++++++++++++++++++++++++++++------ 2 files changed, 45 insertions(+), 6 deletions(-) diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h index ce37349..8777331 100644 --- a/include/asm-generic/pci_iomap.h +++ b/i...

...Virtio drivers should map the part of the range they need, not necessarily all of it. They also need non-cacheable mapping even for prefetchable BARs. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> --- include/asm-generic/pci_iomap.h | 5 +++++ lib/pci_iomap.c | 46 +++++++++++++++++++++++++++++++++++------ 2 files changed, 45 insertions(+), 6 deletions(-) diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h index ce37349..8777331 100644 --- a/include/asm-generic/pci_iomap.h +++ b/i...

...> 2 files changed, 28 insertions(+), 7 deletions(-) > > diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h > index d194d54..25228b3 100644 > --- a/arch/s390/include/asm/pci_io.h > +++ b/arch/s390/include/asm/pci_io.h > @@ -16,6 +16,7 @@ > struct zpci_iomap_entry { > u32 fh; > u8 bar; > + u16 count; > }; > > extern struct zpci_iomap_entry *zpci_iomap_start; > diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c > index 2fa7b14..51cb653 100644 > --- a/arch/s390/pci/pci.c > +++ b/arch/s390/pci/pci.c > @@ -259,7...

...> 2 files changed, 28 insertions(+), 7 deletions(-) > > diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h > index d194d54..25228b3 100644 > --- a/arch/s390/include/asm/pci_io.h > +++ b/arch/s390/include/asm/pci_io.h > @@ -16,6 +16,7 @@ > struct zpci_iomap_entry { > u32 fh; > u8 bar; > + u16 count; > }; > > extern struct zpci_iomap_entry *zpci_iomap_start; > diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c > index 2fa7b14..51cb653 100644 > --- a/arch/s390/pci/pci.c > +++ b/arch/s390/pci/pci.c > @@ -259,7...

...rify device has config space virtio/blk: verify device has config space virtio/console: verify device has config space virtio/net: verify device has config space virtio/scsi: verify device has config space virtio/balloon: verify device has config space mn10300: drop dead code pci: add pci_iomap_range s390: add pci_iomap_range virtio_pci: move probe/remove code to common virtio_pci: modern driver virtio_pci_modern: reduce number of mappings virtio_pci_modern: support devices with no config Rusty Russell (2): virtio-pci: define layout for virtio 1.0 virtio_pci: macros for PCI...

...rify device has config space virtio/blk: verify device has config space virtio/console: verify device has config space virtio/net: verify device has config space virtio/scsi: verify device has config space virtio/balloon: verify device has config space mn10300: drop dead code pci: add pci_iomap_range s390: add pci_iomap_range virtio_pci: move probe/remove code to common virtio_pci: modern driver virtio_pci_modern: reduce number of mappings virtio_pci_modern: support devices with no config Rusty Russell (2): virtio-pci: define layout for virtio 1.0 virtio_pci: macros for PCI...

...> 2 files changed, 28 insertions(+), 7 deletions(-) > > diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h > index f664e96..1a9a98d 100644 > --- a/arch/s390/include/asm/pci_io.h > +++ b/arch/s390/include/asm/pci_io.h > @@ -16,6 +16,7 @@ > struct zpci_iomap_entry { > u32 fh; > u8 bar; > + u16 count; > }; > > extern struct zpci_iomap_entry *zpci_iomap_start; > diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c > index 3290f11..753a567 100644 > --- a/arch/s390/pci/pci.c > +++ b/arch/s390/pci/pci.c > @@ -259,7...

...> 2 files changed, 28 insertions(+), 7 deletions(-) > > diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h > index f664e96..1a9a98d 100644 > --- a/arch/s390/include/asm/pci_io.h > +++ b/arch/s390/include/asm/pci_io.h > @@ -16,6 +16,7 @@ > struct zpci_iomap_entry { > u32 fh; > u8 bar; > + u16 count; > }; > > extern struct zpci_iomap_entry *zpci_iomap_start; > diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c > index 3290f11..753a567 100644 > --- a/arch/s390/pci/pci.c > +++ b/arch/s390/pci/pci.c > @@ -259,7...

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: define layout for virtio 1.0 arch/s390/include/asm/pci_io.h | 1 + drivers/virtio/virtio_pci_common.h | 29 +- include/asm-g...

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: define layout for virtio 1.0 arch/s390/include/asm/pci_io.h | 1 + drivers/virtio/virtio_pci_common.h | 29 +- include/asm-g...

Add a flexible mechanism to specify virtio configuration layout, using pci vendor-specific capability. A separate capability is used for each of common, device specific and data-path accesses. Warning: compiled only. This patch also needs to be split up, pci_iomap changes also need arch updates for non-x86. There might also be more spec changes. Posting here for early feedback, and to allow Sasha to proceed with his "kvm tool" work. Changes from v1: Updated to match v3 of the spec, see: Subject: [PATCHv3 RFC] virtio-spec: flexible configuration...

Add a flexible mechanism to specify virtio configuration layout, using pci vendor-specific capability. A separate capability is used for each of common, device specific and data-path accesses. Warning: compiled only. This patch also needs to be split up, pci_iomap changes also need arch updates for non-x86. There might also be more spec changes. Posting here for early feedback, and to allow Sasha to proceed with his "kvm tool" work. Changes from v1: Updated to match v3 of the spec, see: Subject: [PATCHv3 RFC] virtio-spec: flexible configuration...

...ort shared IRQ for config, read ISR = allocate VQ ring in chunks, good for large rings = use less meory for small VQ ring in chunks, good for large rings General TODOs: = add config generation support = move alloc_virtqueue_pages to virtio core, reuse in e.g. ccw Michael S Tsirkin (1): pci: add pci_iomap_range Michael S. Tsirkin (2): virtio_pci: add VIRTIO_PCI_NO_LEGACY virtio_pci: modern driver Rusty Russell (2): virtio-pci: define layout for virtio 1.0 virtio_pci: macros for PCI layout offsets. drivers/virtio/virtio_pci_common.h | 23 +- include/asm-generic/pci_iomap.h | 5 + in...

...ort shared IRQ for config, read ISR = allocate VQ ring in chunks, good for large rings = use less meory for small VQ ring in chunks, good for large rings General TODOs: = add config generation support = move alloc_virtqueue_pages to virtio core, reuse in e.g. ccw Michael S Tsirkin (1): pci: add pci_iomap_range Michael S. Tsirkin (2): virtio_pci: add VIRTIO_PCI_NO_LEGACY virtio_pci: modern driver Rusty Russell (2): virtio-pci: define layout for virtio 1.0 virtio_pci: macros for PCI layout offsets. drivers/virtio/virtio_pci_common.h | 23 +- include/asm-generic/pci_iomap.h | 5 + in...

...| 34 +++++++++++++++++++++++++++------- 2 files changed, 28 insertions(+), 7 deletions(-) diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h index d194d54..25228b3 100644 --- a/arch/s390/include/asm/pci_io.h +++ b/arch/s390/include/asm/pci_io.h @@ -16,6 +16,7 @@ struct zpci_iomap_entry { u32 fh; u8 bar; + u16 count; }; extern struct zpci_iomap_entry *zpci_iomap_start; diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 2fa7b14..51cb653 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -259,7 +259,10 @@ void __iowrite64_copy(void __iomem *to, con...

...| 34 +++++++++++++++++++++++++++------- 2 files changed, 28 insertions(+), 7 deletions(-) diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h index d194d54..25228b3 100644 --- a/arch/s390/include/asm/pci_io.h +++ b/arch/s390/include/asm/pci_io.h @@ -16,6 +16,7 @@ struct zpci_iomap_entry { u32 fh; u8 bar; + u16 count; }; extern struct zpci_iomap_entry *zpci_iomap_start; diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 2fa7b14..51cb653 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -259,7 +259,10 @@ void __iowrite64_copy(void __iomem *to, con...

...| 34 +++++++++++++++++++++++++++------- 2 files changed, 28 insertions(+), 7 deletions(-) diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h index f664e96..1a9a98d 100644 --- a/arch/s390/include/asm/pci_io.h +++ b/arch/s390/include/asm/pci_io.h @@ -16,6 +16,7 @@ struct zpci_iomap_entry { u32 fh; u8 bar; + u16 count; }; extern struct zpci_iomap_entry *zpci_iomap_start; diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 3290f11..753a567 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -259,7 +259,10 @@ void __iowrite64_copy(void __iomem *to, con...

...| 34 +++++++++++++++++++++++++++------- 2 files changed, 28 insertions(+), 7 deletions(-) diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h index f664e96..1a9a98d 100644 --- a/arch/s390/include/asm/pci_io.h +++ b/arch/s390/include/asm/pci_io.h @@ -16,6 +16,7 @@ struct zpci_iomap_entry { u32 fh; u8 bar; + u16 count; }; extern struct zpci_iomap_entry *zpci_iomap_start; diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 3290f11..753a567 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -259,7 +259,10 @@ void __iowrite64_copy(void __iomem *to, con...