summaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/microchip/vcap/vcap_api.c
Commit message (Collapse)AuthorAgeFilesLines
...
* net: microchip: sparx5: Adding KUNIT test for the VCAP APISteen Hegelund2022-10-241-0/+4
| | | | | | | | | | | | | This provides a KUNIT test suite for the VCAP APIs encoding functionality. The test can be run by adding these settings in a .kunitconfig file CONFIG_KUNIT=y CONFIG_NET=y CONFIG_VCAP_KUNIT_TEST=y Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: microchip: sparx5: Writing rules to the IS2 VCAPSteen Hegelund2022-10-241-1/+425
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds rule encoding functionality to the VCAP API. A rule consists of keys and actions in separate cache sections. The maximum size of the keyset or actionset determines the size of the rule. The VCAP hardware need to be able to distinguish different rule sizes from each other, and for that purpose some extra typegroup bits are added to the rule when it is encoded. The API provides a bit stream iterator that allows highlevel encoding functionality to add key and action value bits independent of typegroup bits. This is handled by letting the concrete VCAP model provide the typegroup table for the different rule sizes. After the key and action values have been added to the encoding bit streams the typegroup bits are set to their correct values just before the rule is written to the VCAP hardware. The key and action offsets provided in the VCAP model are the offset before adding the typegroup bits. Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com> Tested-by: Casper Andersson <casper.casan@gmail.com> Reviewed-by: Casper Andersson <casper.casan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: microchip: sparx5: Adding basic rule management in VCAP APISteen Hegelund2022-10-241-8/+312
| | | | | | | | | | | | | | | | | | | | | | | | | This provides most of the rule handling needed to add a new rule to a VCAP. To add a rule a client must follow these steps: 1) Allocate a new rule (provide an id or get one automatically assigned) 2) Add keys to the rule 3) Add actions to the rule 4) Optionally set a keyset on the rule 5) Optionally set an actionset on the rule 6) Validate the rule (this will add keyset and actionset if not specified in the previous steps) 7) Add the rule (if the validation was successful) 8) Free the rule instance (a copy has been added to the VCAP) The validation step will fail if there are no keysets with the requested keys, or there are no actionsets with the requested actions. The validation will also fail if the keyset is not configured for the port for the requested protocol). Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com> Tested-by: Casper Andersson <casper.casan@gmail.com> Reviewed-by: Casper Andersson <casper.casan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: microchip: sparx5: Adding port keyset config and callback interfaceSteen Hegelund2022-10-241-0/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This provides a default port keyset configuration for the Sparx5 IS2 VCAP where all ports and all lookups in IS2 use the same keyset (MAC_ETYPE) for all types of traffic. This means that no matter what frame type is received on any front port it will generate the MAC_ETYPE keyset in the IS VCAP and any rule in the IS2 VCAP that uses this keyset will be matched against the keys in the MAC_ETYPE keyset. The callback interface used by the VCAP API is populated with Sparx5 specific handler functions that takes care of the actual reading and writing to data to the Sparx5 IS2 VCAP instance. A few functions are also added to the VCAP API to support addition of rule fields such as the ingress port mask and the lookup bit. The IS2 VCAP in Sparx5 is really divided in two instances with lookup 0 and 1 in the first instance and lookup 2 and 3 in the second instance. The lookup bit selects lookup 0 or 3 in the respective instance when it is set. Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com> Tested-by: Casper Andersson <casper.casan@gmail.com> Reviewed-by: Casper Andersson <casper.casan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: microchip: sparx5: Adding initial tc flower support for VCAP APISteen Hegelund2022-10-241-0/+371
This adds initial TC flower filter support to Sparx5 for the IS2 VCAP. The support consists of the source and destination MAC addresses, and the trap and pass actions. This is how you can create a rule that test the functionality: tc qdisc add dev eth0 clsact tc filter add dev eth0 ingress chain 8000000 prio 10 handle 10 \ protocol all flower skip_sw \ dst_mac 0a:0b:0c:0d:0e:0f \ src_mac 2:0:0:0:0:1 \ action trap The IS2 chains in Sparx5 are assigned like this: - chain 8000000: IS2 Lookup 0 - chain 8100000: IS2 Lookup 1 - chain 8200000: IS2 Lookup 2 - chain 8300000: IS2 Lookup 3 Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com> Tested-by: Casper Andersson <casper.casan@gmail.com> Reviewed-by: Casper Andersson <casper.casan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>