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

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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 <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Edward Cree 2023-06-08 17:42:32 +01:00 committed by Jakub Kicinski
parent b4da4235dc
commit 69819d3bc4
2 changed files with 24 additions and 0 deletions
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23
drivers/net/ethernet/sfc/mae.c
View File

@ -1229,6 +1229,29 @@ int efx_mae_insert_rule(struct efx_nic *efx, const struct efx_tc_match *match,
return 0;
}
int efx_mae_update_rule(struct efx_nic *efx, u32 acts_id, u32 id)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ACTION_RULE_UPDATE_IN_LEN);
MCDI_DECLARE_STRUCT_PTR(response);
BUILD_BUG_ON(MC_CMD_MAE_ACTION_RULE_UPDATE_OUT_LEN);
response = _MCDI_DWORD(inbuf, MAE_ACTION_RULE_UPDATE_IN_RESPONSE);
MCDI_SET_DWORD(inbuf, MAE_ACTION_RULE_UPDATE_IN_AR_ID, id);
if (efx_mae_asl_id(acts_id)) {
MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_ASL_ID, acts_id);
MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_AS_ID,
MC_CMD_MAE_ACTION_SET_ALLOC_OUT_ACTION_SET_ID_NULL);
} else {
/* We only had one AS, so we didn't wrap it in an ASL */
MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_ASL_ID,
MC_CMD_MAE_ACTION_SET_LIST_ALLOC_OUT_ACTION_SET_LIST_ID_NULL);
MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_AS_ID, acts_id);
}
return efx_mcdi_rpc(efx, MC_CMD_MAE_ACTION_RULE_UPDATE, inbuf, sizeof(inbuf),
NULL, 0, NULL);
}
int efx_mae_delete_rule(struct efx_nic *efx, u32 id)
{
MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ACTION_RULE_DELETE_OUT_LEN(1));

1
drivers/net/ethernet/sfc/mae.h
View File

@ -105,6 +105,7 @@ int efx_mae_unregister_encap_match(struct efx_nic *efx,
int efx_mae_insert_rule(struct efx_nic *efx, const struct efx_tc_match *match,
u32 prio, u32 acts_id, u32 *id);
int efx_mae_update_rule(struct efx_nic *efx, u32 acts_id, u32 id);
int efx_mae_delete_rule(struct efx_nic *efx, u32 id);
int efx_init_mae(struct efx_nic *efx);