[Intel-wired-lan] [PATCH net-next] ice: Allow to set lan_en and lb_en for switchdev offloads
Wojciech Drewek
wojciech.drewek at intel.com
Tue Sep 21 11:10:42 UTC 2021
Currently it is not possible to set/unset lb_en and lan_en flags
for advanced rules during their creation. Both flags are enabled
by default. In case of switchdev offloads for egress traffic we
need lb_en to be disabled. Because of that we have to use a
workaround which is to update rule immediately after its creation.
This change allow us to set/unset those flags right
away and it gets rid of old workaround aswell.
Signed-off-by: Wojciech Drewek <wojciech.drewek at intel.com>
---
drivers/net/ethernet/intel/ice/ice_fltr.c | 127 --------------------
drivers/net/ethernet/intel/ice/ice_fltr.h | 4 -
drivers/net/ethernet/intel/ice/ice_switch.c | 9 +-
drivers/net/ethernet/intel/ice/ice_switch.h | 11 ++
drivers/net/ethernet/intel/ice/ice_tc_lib.c | 8 +-
5 files changed, 21 insertions(+), 138 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_fltr.c b/drivers/net/ethernet/intel/ice/ice_fltr.c
index f22ca4354f84..e49378893390 100644
--- a/drivers/net/ethernet/intel/ice/ice_fltr.c
+++ b/drivers/net/ethernet/intel/ice/ice_fltr.c
@@ -509,133 +509,6 @@ static u32 ice_fltr_build_action(u16 vsi_id)
ICE_SINGLE_ACT_VSI_FORWARDING | ICE_SINGLE_ACT_VALID_BIT;
}
-/**
- * ice_fltr_find_adv_entry - find advanced rule
- * @rules: list of rules
- * @rule_id: id of wanted rule
- */
-static struct ice_adv_fltr_mgmt_list_entry *
-ice_fltr_find_adv_entry(struct list_head *rules, u16 rule_id)
-{
- struct ice_adv_fltr_mgmt_list_entry *entry;
-
- list_for_each_entry(entry, rules, list_entry) {
- if (entry->rule_info.fltr_rule_id == rule_id)
- return entry;
- }
-
- return NULL;
-}
-
-/**
- * ice_fltr_update_adv_rule_flags - update flags on advanced rule
- * @vsi: pointer to VSI
- * @recipe_id: id of recipe
- * @entry: advanced rule entry
- * @new_flags: flags to update
- */
-static enum ice_status
-ice_fltr_update_adv_rule_flags(struct ice_vsi *vsi, u16 recipe_id,
- struct ice_adv_fltr_mgmt_list_entry *entry,
- u32 new_flags)
-{
- struct ice_adv_rule_info *info = &entry->rule_info;
- struct ice_sw_act_ctrl *act = &info->sw_act;
- u32 action;
-
- if (act->fltr_act != ICE_FWD_TO_VSI)
- return ICE_ERR_NOT_SUPPORTED;
-
- action = ice_fltr_build_action(act->fwd_id.hw_vsi_id);
-
- return ice_fltr_update_rule_flags(&vsi->back->hw, info->fltr_rule_id,
- recipe_id, action, info->sw_act.flag,
- act->src, new_flags);
-}
-
-/**
- * ice_fltr_find_regular_entry - find regular rule
- * @rules: list of rules
- * @rule_id: id of wanted rule
- */
-static struct ice_fltr_mgmt_list_entry *
-ice_fltr_find_regular_entry(struct list_head *rules, u16 rule_id)
-{
- struct ice_fltr_mgmt_list_entry *entry;
-
- list_for_each_entry(entry, rules, list_entry) {
- if (entry->fltr_info.fltr_rule_id == rule_id)
- return entry;
- }
-
- return NULL;
-}
-
-/**
- * ice_fltr_update_regular_rule - update flags on regular rule
- * @vsi: pointer to VSI
- * @recipe_id: id of recipe
- * @entry: regular rule entry
- * @new_flags: flags to update
- */
-static enum ice_status
-ice_fltr_update_regular_rule(struct ice_vsi *vsi, u16 recipe_id,
- struct ice_fltr_mgmt_list_entry *entry,
- u32 new_flags)
-{
- struct ice_fltr_info *info = &entry->fltr_info;
- u32 action;
-
- if (info->fltr_act != ICE_FWD_TO_VSI)
- return ICE_ERR_NOT_SUPPORTED;
-
- action = ice_fltr_build_action(info->fwd_id.hw_vsi_id);
-
- return ice_fltr_update_rule_flags(&vsi->back->hw, info->fltr_rule_id,
- recipe_id, action, info->flag,
- info->src, new_flags);
-}
-
-/**
- * ice_fltr_update_flags - update flags on rule
- * @vsi: pointer to VSI
- * @rule_id: id of rule
- * @recipe_id: id of recipe
- * @new_flags: flags to update
- *
- * Function updates flags on regular and advance rule.
- *
- * Flags should be a combination of ICE_SINGLE_ACT_LB_ENABLE and
- * ICE_SINGLE_ACT_LAN_ENABLE.
- */
-enum ice_status
-ice_fltr_update_flags(struct ice_vsi *vsi, u16 rule_id, u16 recipe_id,
- u32 new_flags)
-{
- struct ice_adv_fltr_mgmt_list_entry *adv_entry;
- struct ice_fltr_mgmt_list_entry *regular_entry;
- struct ice_hw *hw = &vsi->back->hw;
- struct ice_sw_recipe *recp_list;
- struct list_head *fltr_rules;
-
- recp_list = &hw->switch_info->recp_list[recipe_id];
- if (!recp_list)
- return ICE_ERR_DOES_NOT_EXIST;
-
- fltr_rules = &recp_list->filt_rules;
- regular_entry = ice_fltr_find_regular_entry(fltr_rules, rule_id);
- if (regular_entry)
- return ice_fltr_update_regular_rule(vsi, recipe_id,
- regular_entry, new_flags);
-
- adv_entry = ice_fltr_find_adv_entry(fltr_rules, rule_id);
- if (adv_entry)
- return ice_fltr_update_adv_rule_flags(vsi, recipe_id,
- adv_entry, new_flags);
-
- return ICE_ERR_DOES_NOT_EXIST;
-}
-
/**
* ice_fltr_update_flags_dflt_rule - update flags on default rule
* @vsi: pointer to VSI
diff --git a/drivers/net/ethernet/intel/ice/ice_fltr.h b/drivers/net/ethernet/intel/ice/ice_fltr.h
index 339da5fef577..db59cbbeda32 100644
--- a/drivers/net/ethernet/intel/ice/ice_fltr.h
+++ b/drivers/net/ethernet/intel/ice/ice_fltr.h
@@ -46,10 +46,6 @@ enum ice_status
ice_fltr_remove_eth(struct ice_vsi *vsi, u16 ethertype, u16 flag,
enum ice_sw_fwd_act_type action);
void ice_fltr_remove_all(struct ice_vsi *vsi);
-
-enum ice_status
-ice_fltr_update_flags(struct ice_vsi *vsi, u16 rule_id, u16 recipe_id,
- u32 new_flags);
enum ice_status
ice_fltr_update_flags_dflt_rule(struct ice_vsi *vsi, u16 rule_id, u8 direction,
u32 new_flags);
diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index ca039a4c3a79..1bbb52bf2279 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -4841,7 +4841,14 @@ ice_add_adv_rule(struct ice_hw *hw, struct ice_adv_lkup_elem *lkups,
s_rule = kzalloc(rule_buf_sz, GFP_KERNEL);
if (!s_rule)
return ICE_ERR_NO_MEMORY;
- act |= ICE_SINGLE_ACT_LB_ENABLE | ICE_SINGLE_ACT_LAN_ENABLE;
+ if (!rinfo->flags_info.act_valid) {
+ act |= ICE_SINGLE_ACT_LAN_ENABLE;
+ act |= ICE_SINGLE_ACT_LB_ENABLE;
+ } else {
+ act |= rinfo->flags_info.act & (ICE_SINGLE_ACT_LAN_ENABLE |
+ ICE_SINGLE_ACT_LB_ENABLE);
+ }
+
switch (rinfo->sw_act.fltr_act) {
case ICE_FWD_TO_VSI:
act |= (rinfo->sw_act.fwd_id.hw_vsi_id <<
diff --git a/drivers/net/ethernet/intel/ice/ice_switch.h b/drivers/net/ethernet/intel/ice/ice_switch.h
index cd5421a41002..f8e7f0b41631 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.h
+++ b/drivers/net/ethernet/intel/ice/ice_switch.h
@@ -169,11 +169,22 @@ struct ice_rule_query_data {
u16 vsi_handle;
};
+/* This structure allows to pass info about lb_en and lan_en
+ * flags to ice_add_adv_rule. Values in act would be used
+ * only if act_valid was set to true, otherwise dflt
+ * values would be used.
+ */
+struct ice_adv_rule_flags_info {
+ u32 act;
+ u8 act_valid; /* indicate if flags in act are valid */
+};
+
struct ice_adv_rule_info {
struct ice_sw_act_ctrl sw_act;
u32 priority;
u8 rx; /* true means LOOKUP_RX otherwise LOOKUP_TX */
u16 fltr_rule_id;
+ struct ice_adv_rule_flags_info flags_info;
};
/* A collection of one or more four word recipe */
diff --git a/drivers/net/ethernet/intel/ice/ice_tc_lib.c b/drivers/net/ethernet/intel/ice/ice_tc_lib.c
index e01b16419923..5e132832044d 100644
--- a/drivers/net/ethernet/intel/ice/ice_tc_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_tc_lib.c
@@ -274,6 +274,8 @@ ice_eswitch_add_tc_fltr(struct ice_vsi *vsi, struct ice_tc_flower_fltr *fltr)
rule_info.sw_act.flag |= ICE_FLTR_TX;
rule_info.sw_act.src = vsi->idx;
rule_info.rx = false;
+ rule_info.flags_info.act = ICE_SINGLE_ACT_LAN_ENABLE;
+ rule_info.flags_info.act_valid = true;
}
/* specify the cookie as filter_rule_id */
@@ -296,12 +298,6 @@ ice_eswitch_add_tc_fltr(struct ice_vsi *vsi, struct ice_tc_flower_fltr *fltr)
fltr->rid = rule_added.rid;
fltr->rule_id = rule_added.rule_id;
- if (fltr->direction == ICE_ESWITCH_FLTR_EGRESS) {
- if (ice_fltr_update_flags(vsi, fltr->rule_id, fltr->rid,
- ICE_SINGLE_ACT_LAN_ENABLE))
- ice_rem_adv_rule_by_id(hw, &rule_added);
- }
-
exit:
kfree(list);
return ret;
--
2.31.1
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