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When an endpoint is released, for example a PCIe VF is disabled or a function hot-unplugged, it should be detached from its domain. Send a DETACH request. Fixes: edcd69ab9a32 ("iommu: Add virtio-iommu driver") Reported-by: Akihiko Odaki <akihiko.odaki at daynix.com> Link: https://lore.kernel.org/all/15bf1b00-3aa0-973a-3a86-3fa5c4d41d2c at daynix.com/ Signed-off-by: Jean-Philippe Brucker <jean-philippe at linaro.org> --- drivers/iommu/virtio-iommu.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/iommu/virtio-...

When an endpoint is released, for example a PCIe VF is disabled or a function hot-unplugged, it should be detached from its domain. Send a DETACH request. Fixes: edcd69ab9a32 ("iommu: Add virtio-iommu driver") Reported-by: Akihiko Odaki <akihiko.odaki at daynix.com> Link: https://lore.kernel.org/all/15bf1b00-3aa0-973a-3a86-3fa5c4d41d2c at daynix.com/ Signed-off-by: Jean-Philippe Brucker <jean-philippe at linaro.org> --- drivers/iommu/virtio-iommu.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/iommu/virtio-...

...: > When an endpoint is released, for example a PCIe VF is disabled or a > function hot-unplugged, it should be detached from its domain. Send a > DETACH request. > > Fixes: edcd69ab9a32 ("iommu: Add virtio-iommu driver") > Reported-by: Akihiko Odaki <akihiko.odaki at daynix.com> > Link: https://lore.kernel.org/all/15bf1b00-3aa0-973a-3a86-3fa5c4d41d2c at daynix.com/ > Signed-off-by: Jean-Philippe Brucker <jean-philippe at linaro.org> > --- > drivers/iommu/virtio-iommu.c | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > >...

On Tue, Mar 21, 2023 at 12:00:42PM +0300, Viktor Prutyanov wrote: > On Tue, Mar 21, 2023 at 5:29?AM Jason Wang <jasowang at redhat.com> wrote: > > > > On Tue, Mar 21, 2023 at 7:21?AM Viktor Prutyanov <viktor at daynix.com> wrote: > > > > > > According to VirtIO spec v1.2, VIRTIO_F_NOTIFICATION_DATA feature > > > indicates that the driver passes extra data along with the queue > > > notifications. > > > > > > In a split queue case, the extra data is 16-bit...

Hi all, I am trying to insert instructions into the bpf using the bpf syscall, the instructions were generated using the following command line: clang -I ~/Builds/bpf_rss/iproute2/include -Wall -target bpf -O2 -emit-llvm -c upstream/qemu/hw/net/rss_tap_bpf_program.c -o - | llc -march=bpf -filetype=obj -o tap_bpf_program.o and then were translated to bpf instructions using the BPFCparser tool

From: Andrew Melnychenko <andrew at daynix.com> If there is a lot(more then 16) of virtio-console devices or virtio_console module is reloaded - buffers 'vtermnos' and 'cons_ops' are overflowed. In older kernels it overruns spinlock which leads to kernel freezing: https://bugzilla.redhat.com/show_bug.cgi?id=1786239 To r...

One fix reported by Akihiko, and another found while going over the driver. Jean-Philippe Brucker (2): iommu/virtio: Detach domain on endpoint release iommu/virtio: Return size mapped for a detached domain drivers/iommu/virtio-iommu.c | 57 ++++++++++++++++++++++++++---------- 1 file changed, 41 insertions(+), 16 deletions(-) -- 2.40.0

This series introduce virtio-net features VIRTIO_NET_F_RSC_EXT, VIRTIO_NET_F_RSS and VIRTIO_NET_F_HASH_REPORT. Changes from v2: reformatted structure in patch 1 Yuri Benditovich (3): virtio-net: Introduce extended RSC feature virtio-net: Introduce RSS receive steering feature virtio-net: Introduce hash report feature include/uapi/linux/virtio_net.h | 100 ++++++++++++++++++++++++++++++--

This series introduce virtio-net features VIRTIO_NET_F_RSC_EXT, VIRTIO_NET_F_RSS and VIRTIO_NET_F_HASH_REPORT. Changes from v2: reformatted structure in patch 1 Yuri Benditovich (3): virtio-net: Introduce extended RSC feature virtio-net: Introduce RSS receive steering feature virtio-net: Introduce hash report feature include/uapi/linux/virtio_net.h | 100 ++++++++++++++++++++++++++++++--

This series introduce virtio-net features VIRTIO_NET_F_RSC_EXT, VIRTIO_NET_F_RSS and VIRTIO_NET_F_HASH_REPORT. Changes from v1: __virtio -> __le maximal -> maximum minor style fixes Yuri Benditovich (3): virtio-net: Introduce extended RSC feature virtio-net: Introduce RSS receive steering feature virtio-net: Introduce hash report feature include/uapi/linux/virtio_net.h | 90

This series introduce virtio-net features VIRTIO_NET_F_RSC_EXT, VIRTIO_NET_F_RSS and VIRTIO_NET_F_HASH_REPORT. Changes from v1: __virtio -> __le maximal -> maximum minor style fixes Yuri Benditovich (3): virtio-net: Introduce extended RSC feature virtio-net: Introduce RSS receive steering feature virtio-net: Introduce hash report feature include/uapi/linux/virtio_net.h | 90

This series introduce virtio-net features VIRTIO_NET_F_RSC_EXT, VIRTIO_NET_F_RSS and VIRTIO_NET_F_HASH_REPORT. Changes from v3: reformatted structure in patch 1 Yuri Benditovich (3): virtio-net: Introduce extended RSC feature virtio-net: Introduce RSS receive steering feature virtio-net: Introduce hash report feature include/uapi/linux/virtio_net.h | 102 ++++++++++++++++++++++++++++++--

From: Andrew Melnychenko <andrew at daynix.com> If there is a lot(more then 16) of virtio-console devices or virtio_console module is reloaded - buffers 'vtermnos' and 'cons_ops' are overflowed. In older kernels it overruns spinlock which leads to kernel freezing: https://bugzilla.redhat.com/show_bug.cgi?id=1786239 Sign...

...lculated hash, provided mask to apply and > provided indirection table containing indices of > receive virqueues. The driver sends the control > command to enable multiqueue and provide parameters > for receive steering. > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > --- > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > 1 file changed, 40 insertions(+), 2 deletions(-) > > diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h > index 19e76b3e3a64..188ad3eecdc8 100644 > --- a/incl...

...lculated hash, provided mask to apply and > provided indirection table containing indices of > receive virqueues. The driver sends the control > command to enable multiqueue and provide parameters > for receive steering. > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > --- > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > 1 file changed, 40 insertions(+), 2 deletions(-) > > diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h > index 19e76b3e3a64..188ad3eecdc8 100644 > --- a/incl...

On Wed, 22 Mar 2023 17:10:31 +0300, Viktor Prutyanov <viktor at daynix.com> wrote: > According to VirtIO spec v1.2, VIRTIO_F_NOTIFICATION_DATA feature > indicates that the driver passes extra data along with the queue > notifications. > > In a split queue case, the extra data is 16-bit available index. In a > packed queue case, the extra data is 1...

...ovided indirection table containing indices of > > > receive virqueues. The driver sends the control > > > command to enable multiqueue and provide parameters > > > for receive steering. > > > > > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > > > --- > > > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > > > 1 file changed, 40 insertions(+), 2 deletions(-) > > > > > > diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h > > &...

...ovided indirection table containing indices of > > > receive virqueues. The driver sends the control > > > command to enable multiqueue and provide parameters > > > for receive steering. > > > > > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > > > --- > > > include/uapi/linux/virtio_net.h | 42 +++++++++++++++++++++++++++++++-- > > > 1 file changed, 40 insertions(+), 2 deletions(-) > > > > > > diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h > > &...

...t is not > GSO_NONE, the device reports number of coalesced packets in > 'csum_start' field and number of duplicated acks in 'csum_offset' > field and sets VIRTIO_NET_HDR_F_RSC_INFO in 'flags' field. > > Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com> > --- > include/uapi/linux/virtio_net.h | 12 ++++++++++-- > 1 file changed, 10 insertions(+), 2 deletions(-) > > diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h > index a3715a3224c1..536152fad3c4 100644 > --- a/include/uapi/linux/virtio...

...ext_off and next_wrap for packed virtqueues. This patch follows a patch [1] by Viktor Prutyanov which adds support for the MMIO, channel I/O and modern PCI transports. This patch needs to be applied on top of Viktor's patch. [1] https://lore.kernel.org/lkml/20230324195029.2410503-1-viktor at daynix.com/ Signed-off-by: Alvaro Karsz <alvaro.karsz at solid-run.com> --- drivers/virtio/virtio_vdpa.c | 20 ++++++++++++++++++-- include/linux/vdpa.h | 6 ++++++ 2 files changed, 24 insertions(+), 2 deletions(-) diff --git a/drivers/virtio/virtio_vdpa.c b/drivers/virtio/virtio_vdpa.c...