linux/drivers/net/netdevsim/netdevsim.h, branch v5.14

drivers: net: netdevsim: fix devlink_trap selftests failing

2021-06-18T18:28:27Z

devlink_trap tests for the netdevsim fail due to misspelled debugfs file name. Change this name, as well as name of callback function, to match the naming as in the devlink itself - 'trap_drop_counter'. Test-results: selftests: drivers/net/netdevsim: devlink_trap.sh TEST: Initialization [ OK ] TEST: Trap action [ OK ] TEST: Trap metadata [ OK ] TEST: Non-existing trap [ OK ] TEST: Non-existing trap action [ OK ] TEST: Trap statistics [ OK ] TEST: Trap group action [ OK ] TEST: Non-existing trap group [ OK ] TEST: Trap group statistics [ OK ] TEST: Trap policer [ OK ] TEST: Trap policer binding [ OK ] TEST: Port delete [ OK ] TEST: Device delete [ OK ] Fixes: a7b3527a43fe ("drivers: net: netdevsim: add devlink trap_drop_counter_get implementation") Signed-off-by: Oleksandr Mazur Reviewed-by: Ido Schimmel Tested-by: Ido Schimmel Signed-off-by: David S. Miller

drivers: net: netdevsim: add devlink trap_drop_counter_get implementation

2021-06-14T20:04:25Z

Whenever query statistics is issued for trap with DROP action, devlink subsystem would also fill-in statistics 'dropped' field. In case if device driver did't register callback for hard drop statistics querying, 'dropped' field will be omitted and not filled. Add trap_drop_counter_get callback implementation to the netdevsim. Add new test cases for netdevsim, to test both the callback functionality, as well as drop statistics alteration check. Signed-off-by: Oleksandr Mazur Signed-off-by: David S. Miller

netdevsim: Allow setting parent node of rate objects

2021-06-02T21:08:37Z

Implement new devlink ops that allow setting rate node as a parent for devlink port (leaf) or another devlink node through devlink API. Expose parent names to netdevsim debugfs in read only mode. Co-developed-by: Vlad Buslov Signed-off-by: Vlad Buslov Signed-off-by: Dmytro Linkin Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

netdevsim: Implement support for devlink rate nodes

2021-06-02T21:08:37Z

Implement new devlink ops that allow creation, deletion and setting of shared/max tx rate of devlink rate nodes through devlink API. Expose rate node and it's tx rates to netdevsim debugfs. Co-developed-by: Vlad Buslov Signed-off-by: Vlad Buslov Signed-off-by: Dmytro Linkin Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

netdevsim: Implement legacy/switchdev mode for VFs

2021-06-02T21:08:36Z

Implement callbacks to set/get eswitch mode value. Add helpers to check current mode. Instantiate VFs' net devices and devlink ports on switchdev enabling and remove them on legacy enabling. Changing number of VFs while in switchdev mode triggers VFs creation/deletion. Also disable NDO API callback to set VF rate, since it's legacy API. Switchdev API to set VF rate will be implemented in one of the next patches. Signed-off-by: Dmytro Linkin Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

netdevsim: Implement port types and indexing

2021-06-02T21:08:36Z

Define type of ports, which netdevsim driver currently operates with as PF. Define new port type - VF, which will be implemented in following patches. Add helper functions to distinguish them. Add helper function to get VF index from port index. Add port indexing logic where PFs' indexes starts from 0, VFs' - from NSIM_DEV_VF_PORT_INDEX_BASE. All ports uses same index pool, which means that PF port may be created with index from VFs' indexes range. Maximum number of VFs, which the driver can allocate, is limited by UINT_MAX - BASE. Signed-off-by: Dmytro Linkin Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

netdevsim: Disable VFs on nsim_dev_reload_destroy() call

2021-06-02T21:08:36Z

Move VFs disabling from device release() to nsim_dev_reload_destroy() to make VFs disabling and ports removal simultaneous. This is a requirement for VFs ports implemented in next patches. Signed-off-by: Dmytro Linkin Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

netdevsim: Add max_vfs to bus_dev

2021-06-02T21:08:36Z

Currently there is no limit to the number of VFs netdevsim can enable. In a real systems this value exist and used by the driver. Fore example, some features might need to consider this value when allocating memory. Expose max_vfs variable to debugfs as configurable resource. If are VFs configured (num_vfs != 0) then changing of max_vfs not allowed. Co-developed-by: Yuval Avnery Signed-off-by: Yuval Avnery Signed-off-by: Dmytro Linkin Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

netdevsim: add FEC settings support

2021-03-31T21:15:23Z

Add support for ethtool FEC and some ethtool error injection. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller

netdevsim: Add dummy psample implementation

2021-03-14T22:00:43Z

Allow netdevsim to report "sampled" packets to the psample module by periodically generating packets from a work queue. The behavior can be enabled / disabled (default) and the various meta data attributes can be controlled via debugfs knobs. This implementation enables both testing of the psample module with all the optional attributes as well as development of user space applications on top of psample such as hsflowd and a Wireshark dissector for psample generic netlink packets. Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller