[PATCH net-next v12 4/4] virtio-net: support dim profile fine-tuning

2024-05-03 Thread Heng Qi
Virtio-net has different types of back-end device implementations. In order to effectively optimize the dim library's gains for different device implementations, let's use the new interface params to initialize and query dim results from a customized profile list. Signed-off-by: Heng Qi --- driv

[PATCH net-next v12 1/4] linux/dim: move useful macros to .h file

2024-05-03 Thread Heng Qi
Useful macros will be used effectively elsewhere. These will be utilized in subsequent patches. Signed-off-by: Heng Qi --- include/linux/dim.h | 7 +++ lib/dim/net_dim.c | 6 -- 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/include/linux/dim.h b/include/linux/dim.h ind

[PATCH net-next v12 2/4] ethtool: provide customized dim profile management

2024-05-03 Thread Heng Qi
The NetDIM library, currently leveraged by an array of NICs, delivers excellent acceleration benefits. Nevertheless, NICs vary significantly in their dim profile list prerequisites. Specifically, virtio-net backends may present diverse sw or hw device implementation, making a one-size-fits-all par

[PATCH net-next v12 3/4] dim: add new interfaces for initialization and getting results

2024-05-03 Thread Heng Qi
DIM-related mode and work have been collected in one same place, so new interfaces are added to provide convenience. Signed-off-by: Heng Qi --- include/linux/dim.h | 48 lib/dim/net_dim.c | 68 + 2 files changed, 116

[PATCH net-next v12 0/4] ethtool: provide the dim profile fine-tuning channel

2024-05-03 Thread Heng Qi
The NetDIM library provides excellent acceleration for many modern network cards. However, the default profiles of DIM limits its maximum capabilities for different NICs, so providing a way which the NIC can be custom configured is necessary. Currently, the way is based on the commonly used "ethto

Re: [PATCH net-next v11 2/4] ethtool: provide customized dim profile management

2024-05-03 Thread Heng Qi
On Fri, 3 May 2024 14:52:44 +0100, Simon Horman wrote: > On Wed, May 01, 2024 at 01:31:34AM +0800, Heng Qi wrote: > > ... > > > diff --git a/include/linux/dim.h b/include/linux/dim.h > > ... > > > @@ -198,6 +234,32 @@ enum dim_step_result { > > DIM_ON_EDGE, > > }; > > > > +/** > > + * n

Re: [PATCH net-next v11 2/4] ethtool: provide customized dim profile management

2024-05-03 Thread Simon Horman
On Wed, May 01, 2024 at 01:31:34AM +0800, Heng Qi wrote: ... > diff --git a/include/linux/dim.h b/include/linux/dim.h ... > @@ -198,6 +234,32 @@ enum dim_step_result { > DIM_ON_EDGE, > }; > > +/** > + * net_dim_init_irq_moder - collect information to initialize irq moderation > + * @de

Re: [PATCH v3 1/2] proc: restrict /proc/pid/mem access via param knobs

2024-05-03 Thread Christian Brauner
On Fri, Apr 26, 2024 at 04:10:49PM -0700, Kees Cook wrote: > On Tue, Apr 09, 2024 at 08:57:49PM +0300, Adrian Ratiu wrote: > > Prior to v2.6.39 write access to /proc//mem was restricted, > > after which it got allowed in commit 198214a7ee50 ("proc: enable > > writing to /proc/pid/mem"). Famous last