kernel/drivers/net/ethernet/sfc/mae.h, branch linux-6.18.y

sfc: Remove unused efx_mae_mport_vf

2024-11-06T01:35:11Z

efx_mae_mport_vf() has been unused since commit 5227adff37af ("sfc: add mport lookup based on driver's mport data") Remove it. Signed-off-by: Dr. David Alan Gilbert Acked-by: Martin Habets Link: https://patch.msgid.link/20241102151625.39535-3-linux@treblig.org Signed-off-by: Jakub Kicinski

sfc: introduce ethernet pedit set action infrastructure

2023-08-27T05:56:54Z

Introduce the initial ethernet pedit set action infrastructure in preparation for adding mac src and dst pedit action offloads. Co-developed-by: Edward Cree Signed-off-by: Edward Cree Signed-off-by: Pieter Jansen van Vuuren Signed-off-by: David S. Miller

sfc: offload left-hand side rules for conntrack

2023-08-09T10:14:38Z

Handle the (comparatively) simple case of a -trk rule on an efx netdev (i.e. not a tunnel decap rule) with ct and goto chain actions. Reviewed-by: Pieter Jansen van Vuuren Reviewed-by: Simon Horman Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: functions to insert/remove conntrack entries to MAE hardware

2023-08-09T10:14:38Z

Translate from software struct efx_tc_ct_entry objects to the key and response bitstrings, and implement insertion and removal of these entries from the hardware table. Callers of these functions will be added in subsequent patches. Reviewed-by: Pieter Jansen van Vuuren Reviewed-by: Simon Horman Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: add MAE table machinery for conntrack table

2023-08-09T10:14:37Z

Access to the connection tracking table in EF100 hardware is through a "generic" table mechanism, whereby a firmware call at probe time gives the driver a description of the field widths and offsets, so that the driver can then construct key and response bitstrings at runtime. Probe the NIC for this information and populate the needed metadata into a new meta_ct field of struct efx_tc_state. Reviewed-by: Pieter Jansen van Vuuren Reviewed-by: Simon Horman Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: MAE functions to create/update/delete encap headers

2023-06-10T07:11:49Z

Besides the raw header data, also pass the tunnel type, so that the hardware knows it needs to update the IP Total Length and UDP Length fields (and corresponding checksums) for each packet. Also, populate the ENCAP_HEADER_ID field in efx_mae_alloc_action_set() with the fw_id returned from efx_mae_allocate_encap_md(). Reviewed-by: Pieter Jansen van Vuuren Signed-off-by: Edward Cree Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski

sfc: add function to atomically update a rule in the MAE

2023-06-10T07:11:49Z

efx_mae_update_rule() changes the action-set-list attached to an MAE flow rule in the Action Rule Table. We will use this when neighbouring updates change encap actions. Reviewed-by: Pieter Jansen van Vuuren Signed-off-by: Edward Cree Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski

sfc: support TC decap rules matching on enc_src_port

2023-05-12T09:37:02Z

Allow efx_tc_encap_match entries to include a udp_sport and a udp_sport_mask. As with enc_ip_tos, use pseudos to enforce that all encap matches within a given tuple have the same udp_sport_mask. Note that since we use a single layer of pseudos for both fields, two matches that differ in (say) udp_sport value aren't permitted to have different ip_tos_mask, even though this would technically be safe. Current userland TC does not support setting enc_src_port; this patch was tested with an iproute2 patched to support it. Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: populate enc_ip_tos matches in MAE outer rules

2023-05-12T09:37:02Z

Currently tc.c will block them before they get here, but following patch will change that. Use the extack message from efx_mae_check_encap_match_caps() instead of writing a new one, since there's now more being fed in than just an IP version. Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: add offloading of 'foreign' TC (decap) rules

2023-03-29T08:06:08Z

A 'foreign' rule is one for which the net_dev is not the sfc netdevice or any of its representors. The driver registers indirect flow blocks for tunnel netdevs so that it can offload decap rules. For example: tc filter add dev vxlan0 parent ffff: protocol ipv4 flower \ enc_src_ip 10.1.0.2 enc_dst_ip 10.1.0.1 \ enc_key_id 1000 enc_dst_port 4789 \ action tunnel_key unset \ action mirred egress redirect dev $REPRESENTOR When notified of a rule like this, register an encap match on the IP and dport tuple (creating an Outer Rule table entry) and insert an MAE action rule to perform the decapsulation and deliver to the representee. Moved efx_tc_delete_rule() below efx_tc_flower_release_encap_match() to avoid the need for a forward declaration. Signed-off-by: Edward Cree Reviewed-by: Simon Horman Signed-off-by: David S. Miller