On 2023/12/19 4:56, Song Liu wrote:
Hi Akihiko,
On Tue, Dec 12, 2023 at 12:05 AM Akihiko Odaki wrote:
[...]
---
I'm working on a new feature that aids virtio-net implementations using
tuntap virtual network device. You can see [1] for details, but
basically it's
On 2023/12/16 1:36, Stephen Hemminger wrote:
On Fri, 15 Dec 2023 14:49:56 +0900
Akihiko Odaki wrote:
It is exactly what BPF_PROG_TYPE_SOCKET_FILTER does, but it lacks a
mechanism to report hash values so I need to extend it or invent a new
method. Extending BPF_PROG_TYPE_SOCKET_FILTER is not
On 2023/12/15 2:40, Stephen Hemminger wrote:
On Thu, 14 Dec 2023 14:51:12 +0900
Akihiko Odaki wrote:
On 2023/12/13 19:22, Benjamin Tissoires wrote:
On Tue, Dec 12, 2023 at 1:41 PM Akihiko Odaki wrote:
On 2023/12/12 19:39, Benjamin Tissoires wrote:
Hi,
On Tue, Dec 12, 2023 at 9:11 AM
On 2023/12/13 19:22, Benjamin Tissoires wrote:
On Tue, Dec 12, 2023 at 1:41 PM Akihiko Odaki wrote:
On 2023/12/12 19:39, Benjamin Tissoires wrote:
Hi,
On Tue, Dec 12, 2023 at 9:11 AM Akihiko Odaki wrote:
Hi,
Hi,
Thanks for reply.
It is said eBPF is a safe way to extend kernels and
On 2023/12/12 19:39, Benjamin Tissoires wrote:
Hi,
On Tue, Dec 12, 2023 at 9:11 AM Akihiko Odaki wrote:
Hi,
Hi,
Thanks for reply.
It is said eBPF is a safe way to extend kernels and that is very
attarctive, but we need to use kfuncs to add new usage of eBPF and
kfuncs are said as
ication, which we didn't have to care for
BPF_PROG_TYPE_SOCKET_FILTER. Isn't there a better way? Or shouldn't I
use BPF in my case in the first place?
Thanks,
Akihiko Odaki
[1]
https://lore.kernel.org/all/20231015141644.260646-1-akihiko.od...@daynix.com/
[2] https://gi
On 2023/12/11 10:40, Song Liu wrote:
On Sat, Dec 9, 2023 at 11:03 PM Akihiko Odaki wrote:
On 2023/11/22 14:36, Akihiko Odaki wrote:
On 2023/11/22 14:25, Song Liu wrote:
[...]
Now the discussion is stale again so let me summarize the discussion:
A tuntap device can have an eBPF
On 2023/11/22 14:36, Akihiko Odaki wrote:
On 2023/11/22 14:25, Song Liu wrote:
On Mon, Nov 20, 2023 at 12:05 AM Akihiko Odaki
wrote:
On 2023/11/20 6:02, Song Liu wrote:
[...]
In contrast, our intended use case is more like a normal application.
So, for example, a user may download a
When linking statically, libraries may require other dependencies to be
included to ld flags. In particular, libelf may require libzstd. Use
pkg-config to determine such dependencies.
Signed-off-by: Akihiko Odaki
---
tools/testing/selftests/bpf/Makefile | 8 ++--
1 file changed, 6
A library may need to depend on additional archive files for static
builds so pkg-config should be instructed to list them.
Signed-off-by: Akihiko Odaki
---
tools/testing/selftests/bpf/README.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf
pkg-config is used to build sign-file executable. It should use the
library for the target instead of the host as it is called during tests.
Signed-off-by: Akihiko Odaki
---
tools/testing/selftests/bpf/Makefile | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools
tch "selftests/bpf: Choose pkg-config for the target".
V3 -> V4: Added "2> /dev/null".
V2 -> V3: Added missing "echo".
V1 -> V2: Implemented fallback, referring to HOSTPKG_CONFIG.
Akihiko Odaki (3):
selftests/bpf: Choose pkg-config for the target
selftes
On 2023/11/22 14:25, Song Liu wrote:
On Mon, Nov 20, 2023 at 12:05 AM Akihiko Odaki wrote:
On 2023/11/20 6:02, Song Liu wrote:
[...]
In contrast, our intended use case is more like a normal application.
So, for example, a user may download a container and run QEMU (including
the BPF program
On 2023/11/20 6:02, Song Liu wrote:
On Sun, Nov 19, 2023 at 12:03 AM Akihiko Odaki wrote:
[...]
Unfortunately no. The communication with the userspace can be done with
two different means:
- usual socket read/write
- vhost for direct interaction with a KVM guest
The BPF map may be a valid
On 2023/11/19 1:08, Song Liu wrote:
Hi,
A few rookie questions below.
Thanks for questions.
On Sat, Nov 18, 2023 at 2:39 AM Akihiko Odaki wrote:
On 2023/10/18 4:19, Akihiko Odaki wrote:
On 2023/10/18 4:03, Alexei Starovoitov wrote:
[...]
I would also appreciate if you have some
On 2023/10/18 4:19, Akihiko Odaki wrote:
On 2023/10/18 4:03, Alexei Starovoitov wrote:
On Mon, Oct 16, 2023 at 7:38 PM Jason Wang wrote:
On Tue, Oct 17, 2023 at 7:53 AM Alexei Starovoitov
wrote:
On Sun, Oct 15, 2023 at 10:10 AM Akihiko Odaki
wrote:
On 2023/10/16 1:07, Alexei
On 2023/10/17 23:15, Daniel Borkmann wrote:
On 10/16/23 3:03 PM, Akihiko Odaki wrote:
When linking statically, libraries may require other dependencies to be
included to ld flags. In particular, libelf may require libzstd. Use
pkg-config to determine such dependencies.
Signed-off-by: Akihiko
On 2023/10/18 4:03, Alexei Starovoitov wrote:
On Mon, Oct 16, 2023 at 7:38 PM Jason Wang wrote:
On Tue, Oct 17, 2023 at 7:53 AM Alexei Starovoitov
wrote:
On Sun, Oct 15, 2023 at 10:10 AM Akihiko Odaki wrote:
On 2023/10/16 1:07, Alexei Starovoitov wrote:
On Sun, Oct 15, 2023 at 7:17 AM
On 2023/10/16 21:52, Daniel Borkmann wrote:
On 10/16/23 2:43 PM, Akihiko Odaki wrote:
When linking statically, libraries may require other dependencies to be
included to ld flags. In particular, libelf may require libzstd. Use
pkg-config to determine such dependencies.
Signed-off-by: Akihiko
When linking statically, libraries may require other dependencies to be
included to ld flags. In particular, libelf may require libzstd. Use
pkg-config to determine such dependencies.
Signed-off-by: Akihiko Odaki
---
V3 -> V4: Added "2> /dev/null".
V2 -> V3: Added missi
On 2023/10/16 21:19, Daniel Borkmann wrote:
On 10/16/23 1:54 PM, Akihiko Odaki wrote:
When linking statically, libraries may require other dependencies to be
included to ld flags. In particular, libelf may require libzstd. Use
pkg-config to determine such dependencies.
Signed-off-by: Akihiko
When linking statically, libraries may require other dependencies to be
included to ld flags. In particular, libelf may require libzstd. Use
pkg-config to determine such dependencies.
Signed-off-by: Akihiko Odaki
---
V2 -> V3: Added missing "echo".
V1 -> V2: Implemented fallba
On 2023/10/16 20:39, Daniel Borkmann wrote:
On 10/15/23 3:39 PM, Akihiko Odaki wrote:
When linking statically, libraries may require other dependencies to be
included to ld flags. In particular, libelf may require libzstd. Use
pkg-config to determine such dependencies.
Is this not covered via
When linking statically, libraries may require other dependencies to be
included to ld flags. In particular, libelf may require libzstd. Use
pkg-config to determine such dependencies.
Signed-off-by: Akihiko Odaki
---
V1 -> V2: Implemented fallback, referring to HOSTPKG_CONFIG.
tools/test
On 2023/10/16 1:07, Alexei Starovoitov wrote:
On Sun, Oct 15, 2023 at 7:17 AM Akihiko Odaki wrote:
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 0448700890f7..298634556fab 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -988,6 +988,7 @@ enum
reported.
VIRTIO_NET_F_HASH_REPORT requires VIRTIO_F_VERSION_1.
Signed-off-by: Akihiko Odaki
---
drivers/vhost/net.c | 16
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index f2ed7167c848..6a31d450fae2 100644
--- a/drivers
The added tests will ensure that the new relevant members of struct
__sk_buff are initialized with 0, that the members are properly
interpreted by tun, and tun checks the virtio-net header size before
reporting hash values and types the BPF program computed.
Signed-off-by: Akihiko Odaki
Support BPF_PROG_TYPE_VNET_HASH with TUNSETSTEERINGEBPF ioctl to make
it possible to report hash values and types when steering packets.
Signed-off-by: Akihiko Odaki
---
drivers/net/tun.c | 158 ++
1 file changed, 117 insertions(+), 41 deletions
It is identical with virtio_net_hdr_from_skb() except that it
impelements hash reporting.
Signed-off-by: Akihiko Odaki
---
include/linux/virtio_net.h | 22 ++
1 file changed, 22 insertions(+)
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index
This new extension will be used by tun to carry the hash values and
types to report with virtio-net headers.
Signed-off-by: Akihiko Odaki
---
include/linux/skbuff.h | 10 ++
net/core/skbuff.c | 3 +++
2 files changed, 13 insertions(+)
diff --git a/include/linux/skbuff.h b/include
They will be used only by BPF_PROG_TYPE_VNET_HASH to tell the queues to
deliver packets and the hash values and types reported with virtio-net
headers.
Signed-off-by: Akihiko Odaki
---
include/linux/filter.h | 7
net/core/filter.c | 77
This new program type will be used by tun to determine the queues to
deliver packets and the hash values and types reported with virtio-net
headers.
Signed-off-by: Akihiko Odaki
---
Documentation/bpf/bpf_prog_run.rst | 1 +
Documentation/bpf/libbpf/program_types.rst | 2 ++
include
/bpf
The QEMU patches will soon be submitted to the upstream as RFC too.
V1 -> V2:
Changed to introduce a new BPF program type.
Akihiko Odaki (7):
bpf: Introduce BPF_PROG_TYPE_VNET_HASH
bpf: Add vnet_hash members to __sk_buff
skbuff: Introduce SKB_EXT_TUN_VNET_HASH
virtio_net:
When linking statically, libraries may require other dependencies to be
included to ld flags. In particular, libelf may require libzstd. Use
pkg-config to determine such dependencies.
Signed-off-by: Akihiko Odaki
---
tools/testing/selftests/bpf/Makefile | 3 ++-
tools/testing/selftests/bpf
On 2023/10/11 12:18, Jason Wang wrote:
On Tue, Oct 10, 2023 at 2:19 PM Akihiko Odaki wrote:
On 2023/10/10 15:00, Jason Wang wrote:
On Tue, Oct 10, 2023 at 1:51 PM Akihiko Odaki wrote:
On 2023/10/10 14:45, Jason Wang wrote:
On Tue, Oct 10, 2023 at 9:52 AM Akihiko Odaki wrote:
On 2023
On 2023/10/10 15:00, Jason Wang wrote:
On Tue, Oct 10, 2023 at 1:51 PM Akihiko Odaki wrote:
On 2023/10/10 14:45, Jason Wang wrote:
On Tue, Oct 10, 2023 at 9:52 AM Akihiko Odaki wrote:
On 2023/10/09 19:44, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:12 AM Akihiko Odaki wrote:
On
On 2023/10/10 14:45, Jason Wang wrote:
On Tue, Oct 10, 2023 at 9:52 AM Akihiko Odaki wrote:
On 2023/10/09 19:44, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:12 AM Akihiko Odaki wrote:
On 2023/10/09 19:06, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:02 AM Akihiko Odaki wrote
On 2023/10/09 20:50, Michael S. Tsirkin wrote:
On Mon, Oct 09, 2023 at 05:44:20PM +0900, Akihiko Odaki wrote:
On 2023/10/09 17:13, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 12:22 AM Akihiko Odaki wrote:
virtio-net have two usage of hashes: one is RSS and another is hash
reporting
On 2023/10/09 20:38, Michael S. Tsirkin wrote:
Akihiko Odaki sorry about reposts.
Having an email with two "@" in the CC list:
xuanzhuo@linux.alibaba.comsh...@kernel.org
tripped up mutt's reply-all for me and made it send to you only.
I am guessing you meant two a
On 2023/10/09 19:44, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:12 AM Akihiko Odaki wrote:
On 2023/10/09 19:06, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:02 AM Akihiko Odaki wrote:
On 2023/10/09 18:57, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:57 AM Akihiko Odaki
On 2023/10/09 19:06, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:02 AM Akihiko Odaki wrote:
On 2023/10/09 18:57, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:57 AM Akihiko Odaki wrote:
On 2023/10/09 17:04, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 3:46 PM Akihiko Odaki
On 2023/10/09 19:07, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:05 AM Akihiko Odaki wrote:
On 2023/10/09 18:54, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:44 AM Akihiko Odaki wrote:
On 2023/10/09 17:13, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 12:22 AM Akihiko Odaki
On 2023/10/09 18:54, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:44 AM Akihiko Odaki wrote:
On 2023/10/09 17:13, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 12:22 AM Akihiko Odaki wrote:
virtio-net have two usage of hashes: one is RSS and another is hash
reporting
On 2023/10/09 18:57, Willem de Bruijn wrote:
On Mon, Oct 9, 2023 at 3:57 AM Akihiko Odaki wrote:
On 2023/10/09 17:04, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 3:46 PM Akihiko Odaki wrote:
On 2023/10/09 5:08, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 10:04 PM Akihiko Odaki
On 2023/10/09 17:04, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 3:46 PM Akihiko Odaki wrote:
On 2023/10/09 5:08, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 10:04 PM Akihiko Odaki wrote:
On 2023/10/09 4:07, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 7:22 AM Akihiko Odaki
On 2023/10/09 17:13, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 12:22 AM Akihiko Odaki wrote:
virtio-net have two usage of hashes: one is RSS and another is hash
reporting. Conventionally the hash calculation was done by the VMM.
However, computing the hash after the queue was chosen
On 2023/10/09 5:08, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 10:04 PM Akihiko Odaki wrote:
On 2023/10/09 4:07, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 7:22 AM Akihiko Odaki wrote:
virtio-net have two usage of hashes: one is RSS and another is hash
reporting. Conventionally
On 2023/10/09 4:07, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 7:22 AM Akihiko Odaki wrote:
virtio-net have two usage of hashes: one is RSS and another is hash
reporting. Conventionally the hash calculation was done by the VMM.
However, computing the hash after the queue was chosen
On 2023/10/09 3:39, Willem de Bruijn wrote:
On Sun, Oct 8, 2023 at 7:22 AM Akihiko Odaki wrote:
tun_vnet_hash can use this flag to indicate it stored virtio-net hash
cache to cb.
Signed-off-by: Akihiko Odaki
---
include/linux/skbuff.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a
49 matches
Mail list logo
