kernel/drivers/net/ethernet/microchip/vcap/vcap_api_client.h, branch linux-6.2.y

net: microchip: vcap: Add vcap_rule_get_key_u32

2022-12-06T12:26:43Z

Add the function vcap_rule_get_key_u32 which allows to get the value and the mask of a key that exist on the rule. If the key doesn't exist, it would return error. Signed-off-by: Horatiu Vultur Signed-off-by: Paolo Abeni

net: microchip: vcap: Add vcap_mod_rule

2022-12-06T12:26:43Z

Add the function vcap_mod_rule which allows to update an existing rule in the vcap. It is required for the rule to exist in the vcap to be able to modify it. Signed-off-by: Horatiu Vultur Signed-off-by: Paolo Abeni

net: microchip: vcap: Add vcap_get_rule

2022-12-06T12:26:43Z

Add function vcap_get_rule which returns a rule based on the internal rule id. The entire functionality of reading and decoding the rule from the VCAP was inside vcap_api_debugfs file. So move the entire implementation in vcap_api as this is used also by vcap_get_rule. Signed-off-by: Horatiu Vultur Signed-off-by: Paolo Abeni

net: microchip: sparx5: Support for copying and modifying rules in the API

2022-11-25T09:42:13Z

This adds support for making a copy of a rule and modify keys and actions to differentiate the copy. Signed-off-by: Steen Hegelund Signed-off-by: David S. Miller

net: microchip: sparx5: Add support for TC flower filter statistics

2022-11-14T11:24:17Z

This provides flower filter packet statistics (bytes are not supported) via the dedicated IS2 counter feature. All rules having the same TC cookie will contribute to the packet statistics for the filter as they are considered to be part of the same TC flower filter. Signed-off-by: Steen Hegelund Signed-off-by: David S. Miller

net: microchip: sparx5: Add support for IS2 VCAP rule counters

2022-11-14T11:24:17Z

This adds API methods to set and get a rule counter. A VCAP instance may contain the counter as part of the VCAP cache area, and this counter may be one or more bits in width. This type of counter automatically increments it value when the rule is hit. Other VCAP instances have a dedicated counter area outside of the VCAP and in this case the rule must contain the counter id to be able to locate the counter value. In this case there must also be a rule action that updates the counter using the rule id when the rule is hit. The Sparx5 IS2 VCAP uses a dedicated counter area. Signed-off-by: Steen Hegelund Signed-off-by: David S. Miller

net: microchip: sparx5: Add tc matchall filter and enable VCAP lookups

2022-11-11T10:39:12Z

Use a tc matchall rule with a goto action to the VCAP specific chain to enable the VCAP lookups. If the matchall rule is removed the VCAP lookups will be disabled again using its cookie as lookup to find the VCAP instance. To enable the Sparx5 IS2 VCAP on eth0 you would use this command: tc filter add dev eth0 ingress prio 5 handle 5 matchall \ skip_sw action goto chain 8000000 as the first lookup in IS2 has chain id 8000000 Signed-off-by: Steen Hegelund Signed-off-by: David S. Miller

net: microchip: sparx5: Match keys in configured port keysets

2022-11-11T10:39:12Z

This tries to match the keys in a rule with the keysets supported by the VCAP instance, and generate a list of keysets. This list is then validated against the list of keysets that is currently selected for the lookups (per port) in the VCAP configuration. The Sparx5 IS2 only has one actionset, so there is no actionset matching performed for now. Signed-off-by: Steen Hegelund Signed-off-by: David S. Miller

net: microchip: sparx5: Adding TC goto action and action checking

2022-11-11T10:39:12Z

Add support for a goto action and ensure that a HW offloaded TC flower filter has a valid goto action and that pass and trap actions are not both used in the same filter. Signed-off-by: Steen Hegelund Signed-off-by: David S. Miller

net: microchip: sparx5: Find VCAP lookup from chain id

2022-11-11T10:39:12Z

Add a helper function that finds the lookup index in a VCAP instance from the chain id. Signed-off-by: Steen Hegelund Signed-off-by: David S. Miller