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| author | Edward Cree <ecree.xilinx@gmail.com> | 2023-03-27 11:36:08 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-03-29 09:06:08 +0100 |
| commit | 17654d84b47c69ca788fea7afbdb275504e4c6dc (patch) | |
| tree | 90a1d751f5deae4a0cb96fe8c1f2b66e165ff4a6 /drivers/net/ethernet/sfc/mae.c | |
| parent | 746224cdef013e2a7a4b83fa52881c5482f0c47d (diff) | |
| download | linux-17654d84b47c69ca788fea7afbdb275504e4c6dc.tar.gz linux-17654d84b47c69ca788fea7afbdb275504e4c6dc.tar.bz2 linux-17654d84b47c69ca788fea7afbdb275504e4c6dc.zip | |
sfc: add offloading of 'foreign' TC (decap) rules
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 <ecree.xilinx@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/mae.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/mae.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sfc/mae.c b/drivers/net/ethernet/sfc/mae.c index 92f1383ee4b9..49706a7b94bf 100644 --- a/drivers/net/ethernet/sfc/mae.c +++ b/drivers/net/ethernet/sfc/mae.c @@ -241,6 +241,7 @@ static int efx_mae_get_basic_caps(struct efx_nic *efx, struct mae_caps *caps) if (outlen < sizeof(outbuf)) return -EIO; caps->match_field_count = MCDI_DWORD(outbuf, MAE_GET_CAPS_OUT_MATCH_FIELD_COUNT); + caps->encap_types = MCDI_DWORD(outbuf, MAE_GET_CAPS_OUT_ENCAP_TYPES_SUPPORTED); caps->action_prios = MCDI_DWORD(outbuf, MAE_GET_CAPS_OUT_ACTION_PRIOS); return 0; } @@ -507,6 +508,25 @@ int efx_mae_check_encap_match_caps(struct efx_nic *efx, bool ipv6, } #undef CHECK +int efx_mae_check_encap_type_supported(struct efx_nic *efx, enum efx_encap_type typ) +{ + unsigned int bit; + + switch (typ & EFX_ENCAP_TYPES_MASK) { + case EFX_ENCAP_TYPE_VXLAN: + bit = MC_CMD_MAE_GET_CAPS_OUT_ENCAP_TYPE_VXLAN_LBN; + break; + case EFX_ENCAP_TYPE_GENEVE: + bit = MC_CMD_MAE_GET_CAPS_OUT_ENCAP_TYPE_GENEVE_LBN; + break; + default: + return -EOPNOTSUPP; + } + if (efx->tc->caps->encap_types & BIT(bit)) + return 0; + return -EOPNOTSUPP; +} + int efx_mae_allocate_counter(struct efx_nic *efx, struct efx_tc_counter *cnt) { MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_COUNTER_ALLOC_OUT_LEN(1)); @@ -766,9 +786,10 @@ int efx_mae_alloc_action_set(struct efx_nic *efx, struct efx_tc_action_set *act) size_t outlen; int rc; - MCDI_POPULATE_DWORD_2(inbuf, MAE_ACTION_SET_ALLOC_IN_FLAGS, + MCDI_POPULATE_DWORD_3(inbuf, MAE_ACTION_SET_ALLOC_IN_FLAGS, MAE_ACTION_SET_ALLOC_IN_VLAN_PUSH, act->vlan_push, - MAE_ACTION_SET_ALLOC_IN_VLAN_POP, act->vlan_pop); + MAE_ACTION_SET_ALLOC_IN_VLAN_POP, act->vlan_pop, + MAE_ACTION_SET_ALLOC_IN_DECAP, act->decap); MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_SRC_MAC_ID, MC_CMD_MAE_MAC_ADDR_ALLOC_OUT_MAC_ID_NULL); |