linux/drivers/net/netdevsim, branch v4.19

Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net

2018-08-02T17:55:32Z

The BTF conflicts were simple overlapping changes. The virtio_net conflict was an overlap of a fix of statistics counter, happening alongisde a move over to a bonafide statistics structure rather than counting value on the stack. Signed-off-by: David S. Miller

netdevsim: make debug dirs' dentries static

2018-07-27T04:28:54Z

The root directories of netdevsim should only be used by the core to create per-device subdirectories, so limit their visibility to the core file. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: David S. Miller

netdevsim: don't leak devlink resources

2018-07-26T05:33:39Z

Devlink resources registered with devlink_resource_register() have to be unregistered. Fixes: 37923ed6b8ce ("netdevsim: Add simple FIB resource controller via devlink") Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: David S. Miller

netdevsim: allow program sharing between devices

2018-07-18T13:10:34Z

Allow program sharing between devices which were linked together. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: Daniel Borkmann

bpf: offload: keep the offload state per-ASIC

2018-07-18T13:10:34Z

Create a higher-level entity to represent a device/ASIC to allow programs and maps to be shared between device ports. The extra work is required to make sure we don't destroy BPF objects as soon as the netdev for which they were loaded gets destroyed, as other ports may still be using them. When netdev goes away all of its BPF objects will be moved to other netdevs of the device, and only destroyed when last netdev is unregistered. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Acked-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann

bpf: offload: aggregate offloads per-device

2018-07-18T13:10:34Z

Currently we have two lists of offloaded objects - programs and maps. Netdevice unregister notifier scans those lists to orphan objects associated with device being unregistered. This puts unnecessary (even if negligible) burden on all netdev unregister calls in BPF- -enabled kernel. The lists of objects may potentially get long making the linear scan even more problematic. There haven't been complaints about this mechanisms so far, but it is suboptimal. Instead of relying on notifiers, make the few BPF-capable drivers register explicitly for BPF offloads. The programs and maps will now be collected per-device not on a global list, and only scanned for removal when driver unregisters from BPF offloads. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: Daniel Borkmann

netdevsim: associate bound programs with shared dev

2018-07-18T13:10:33Z

Move bound program information from netdevsim to shared sub-object, as programs will soon be shared between netdevs of the same ASIC. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: Daniel Borkmann

netdevsim: add shared netdevsim devices

2018-07-18T13:10:33Z

Factor out sharable netdevsim sub-object and use IFLA_LINK to link netdevsims together at creation time. Sharable object will have its own DebugFS directory. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: Daniel Borkmann

netdevsim: add switch_id attribute

2018-07-18T13:10:33Z

Grouping netdevsim devices into "ASICs" will soon be supported. Add switch_id attribute to all netdevsims. For now each netdevsim will have its switch_id matching the device id. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: Daniel Borkmann

netdevsim: add support for simultaneous driver and hw XDP

2018-07-13T18:26:35Z

Allow netdevsim to accept driver and offload attachment of XDP BPF programs at the same time. Signed-off-by: Jakub Kicinski Reviewed-by: Quentin Monnet Signed-off-by: Daniel Borkmann