linux-toradex.git/drivers/net/netdevsim/netdevsim.h, branch v4.16

netdevsim: don't compile BPF code if syscall not enabled

2018-01-24T01:24:31+00:00

We should not compile netdevsim/bpf.c if BPF syscall is not
enabled.  Otherwise bpf core would have to provide wrappers
for all functions offload drivers may call, even though
system will never see a BPF object.

Signed-off-by: Jakub Kicinski 
Reviewed-by: Quentin Monnet 
Signed-off-by: David S. Miller

netdevsim: bpf: support fake map offload

2018-01-18T21:54:25+00:00

Add to netdevsim ability to pretend it's offloading BPF maps.
We only allow allocation of tiny 2 entry maps, to keep things
simple.  Mutex lock may seem heavy for the operations we
perform, but we want to make sure callbacks can sleep.

Signed-off-by: Jakub Kicinski 
Signed-off-by: Daniel Borkmann

netdevsim: add SR-IOV functionality

2017-12-02T23:27:58+00:00

dummy driver was extended with VF-related netdev APIs for testing
SR-IOV-related software.  netdevsim did not exist back then.
Implement SR-IOV functionality in netdevsim.  Notable difference
is that since netdevsim has no module parameters, we will actually
create a device with sriov_numvfs attribute for each netdev.
The zero MAC address is accepted as some HW use it to mean any
address is allowed.  Link state is also now validated.

Signed-off-by: Jakub Kicinski 
Reviewed-by: Quentin Monnet 
Signed-off-by: Daniel Borkmann

netdevsim: add bpf offload support

2017-12-02T23:27:57+00:00

Add support for loading programs for netdevsim devices and
expose the related information via DebugFS.  Both offload
of XDP and cls_bpf programs is supported.

Signed-off-by: Jakub Kicinski 
Reviewed-by: Simon Horman 
Reviewed-by: Quentin Monnet 
Signed-off-by: Daniel Borkmann

netdevsim: add software driver for testing offloads

2017-12-02T23:27:57+00:00

To be able to run selftests without any hardware required we
need a software model.  The model can also serve as an example
implementation for those implementing actual HW offloads.
The dummy driver have previously been extended to test SR-IOV,
but the general consensus seems to be against adding further
features to it.

Add a new driver for purposes of software modelling only.
eBPF and SR-IOV will be added here shortly, others are invited
to further extend the driver with their offload models.

Signed-off-by: Jakub Kicinski 
Reviewed-by: Simon Horman 
Reviewed-by: Quentin Monnet 
Signed-off-by: Daniel Borkmann