From 69819d3bc4086dd5a268600d1cbd65c39eda1672 Mon Sep 17 00:00:00 2001 From: Edward Cree Date: Thu, 8 Jun 2023 17:42:32 +0100 Subject: [PATCH] sfc: add function to atomically update a rule in the MAE 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 --- drivers/net/ethernet/sfc/mae.c | 23 +++++++++++++++++++++++ drivers/net/ethernet/sfc/mae.h | 1 + 2 files changed, 24 insertions(+) diff --git a/drivers/net/ethernet/sfc/mae.c b/drivers/net/ethernet/sfc/mae.c index 37a4c69..4eef5d1 100644 --- a/drivers/net/ethernet/sfc/mae.c +++ b/drivers/net/ethernet/sfc/mae.c @@ -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)); diff --git a/drivers/net/ethernet/sfc/mae.h b/drivers/net/ethernet/sfc/mae.h index 1cf8dfeb..c542aab 100644 --- a/drivers/net/ethernet/sfc/mae.h +++ b/drivers/net/ethernet/sfc/mae.h @@ -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); -- 2.7.4