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Date: Fri, 25 Aug 2023 09:13:19 +0200
From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: netdev@...r.kernel.org,
david.m.ertman@...el.com,
wojciech.drewek@...el.com,
aleksander.lobakin@...el.com,
Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>,
Simon Horman <horms@...nel.org>,
Marcin Szycik <marcin.szycik@...el.com>
Subject: [PATCH iwl-next v2] ice: add drop rule matching on not active lport
Inactive LAG port should not receive any packets, as it can cause adding
invalid FDBs (bridge offload). Add a drop rule matching on inactive lport
in LAG.
Reviewed-by: Simon Horman <horms@...nel.org>
Co-developed-by: Marcin Szycik <marcin.szycik@...el.com>
Signed-off-by: Marcin Szycik <marcin.szycik@...el.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
---
v1 --> v2 (based on Olek comments):
* remove zeroes from tabels
* style changes
---
.../net/ethernet/intel/ice/ice_eswitch_br.c | 6 +-
drivers/net/ethernet/intel/ice/ice_lag.c | 87 +++++++++++++++----
drivers/net/ethernet/intel/ice/ice_lag.h | 2 +
3 files changed, 75 insertions(+), 20 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_eswitch_br.c b/drivers/net/ethernet/intel/ice/ice_eswitch_br.c
index 67bfd1f61cdd..6ae0269bdf73 100644
--- a/drivers/net/ethernet/intel/ice/ice_eswitch_br.c
+++ b/drivers/net/ethernet/intel/ice/ice_eswitch_br.c
@@ -73,7 +73,7 @@ ice_eswitch_br_ingress_rule_setup(struct ice_adv_rule_info *rule_info,
rule_info->sw_act.vsi_handle = vf_vsi_idx;
rule_info->sw_act.flag |= ICE_FLTR_RX;
rule_info->sw_act.src = pf_id;
- rule_info->priority = 5;
+ rule_info->priority = 2;
}
static void
@@ -84,7 +84,7 @@ ice_eswitch_br_egress_rule_setup(struct ice_adv_rule_info *rule_info,
rule_info->sw_act.flag |= ICE_FLTR_TX;
rule_info->flags_info.act = ICE_SINGLE_ACT_LAN_ENABLE;
rule_info->flags_info.act_valid = true;
- rule_info->priority = 5;
+ rule_info->priority = 2;
}
static int
@@ -207,7 +207,7 @@ ice_eswitch_br_guard_rule_create(struct ice_hw *hw, u16 vsi_idx,
rule_info.allow_pass_l2 = true;
rule_info.sw_act.vsi_handle = vsi_idx;
rule_info.sw_act.fltr_act = ICE_NOP;
- rule_info.priority = 5;
+ rule_info.priority = 2;
err = ice_add_adv_rule(hw, list, lkups_cnt, &rule_info, rule);
if (err)
diff --git a/drivers/net/ethernet/intel/ice/ice_lag.c b/drivers/net/ethernet/intel/ice/ice_lag.c
index 4f39863b5537..0c8cbcd16b6d 100644
--- a/drivers/net/ethernet/intel/ice/ice_lag.c
+++ b/drivers/net/ethernet/intel/ice/ice_lag.c
@@ -19,8 +19,11 @@ static const u8 lacp_train_pkt[LACP_TRAIN_PKT_LEN] = { 0, 0, 0, 0, 0, 0,
static const u8 ice_dflt_vsi_rcp[ICE_RECIPE_LEN] = {
0x05, 0, 0, 0, 0x20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0x85, 0, 0x01, 0, 0, 0, 0xff, 0xff, 0x08, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0x30, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+ 0, 0, 0, 0, 0, 0, 0x30 };
+static const u8 ice_lport_rcp[ICE_RECIPE_LEN] = {
+ 0x05, 0, 0, 0, 0x20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0x85, 0, 0x16, 0, 0, 0, 0xff, 0xff, 0x07, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0x30 };
/**
* ice_lag_set_primary - set PF LAG state as Primary
@@ -173,18 +176,22 @@ static struct ice_lag *ice_lag_find_primary(struct ice_lag *lag)
}
/**
- * ice_lag_cfg_dflt_fltr - Add/Remove default VSI rule for LAG
+ * ice_lag_cfg_fltr - Add/Remove rule for LAG
* @lag: lag struct for local interface
+ * @act: rule action
+ * @recipe_id: recipe id for the new rule
+ * @rule_idx: pointer to rule index
* @add: boolean on whether we are adding filters
*/
static int
-ice_lag_cfg_dflt_fltr(struct ice_lag *lag, bool add)
+ice_lag_cfg_fltr(struct ice_lag *lag, u32 act, u16 recipe_id, u16 *rule_idx,
+ bool add)
{
struct ice_sw_rule_lkup_rx_tx *s_rule;
u16 s_rule_sz, vsi_num;
struct ice_hw *hw;
- u32 act, opc;
u8 *eth_hdr;
+ u32 opc;
int err;
hw = &lag->pf->hw;
@@ -193,7 +200,7 @@ ice_lag_cfg_dflt_fltr(struct ice_lag *lag, bool add)
s_rule_sz = ICE_SW_RULE_RX_TX_ETH_HDR_SIZE(s_rule);
s_rule = kzalloc(s_rule_sz, GFP_KERNEL);
if (!s_rule) {
- dev_err(ice_pf_to_dev(lag->pf), "error allocating rule for LAG default VSI\n");
+ dev_err(ice_pf_to_dev(lag->pf), "error allocating rule for LAG\n");
return -ENOMEM;
}
@@ -201,19 +208,17 @@ ice_lag_cfg_dflt_fltr(struct ice_lag *lag, bool add)
eth_hdr = s_rule->hdr_data;
ice_fill_eth_hdr(eth_hdr);
- act = (vsi_num << ICE_SINGLE_ACT_VSI_ID_S) &
+ act |= (vsi_num << ICE_SINGLE_ACT_VSI_ID_S) &
ICE_SINGLE_ACT_VSI_ID_M;
- act |= ICE_SINGLE_ACT_VSI_FORWARDING |
- ICE_SINGLE_ACT_VALID_BIT | ICE_SINGLE_ACT_LAN_ENABLE;
s_rule->hdr.type = cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_RX);
- s_rule->recipe_id = cpu_to_le16(lag->pf_recipe);
+ s_rule->recipe_id = cpu_to_le16(recipe_id);
s_rule->src = cpu_to_le16(hw->port_info->lport);
s_rule->act = cpu_to_le32(act);
s_rule->hdr_len = cpu_to_le16(DUMMY_ETH_HDR_LEN);
opc = ice_aqc_opc_add_sw_rules;
} else {
- s_rule->index = cpu_to_le16(lag->pf_rule_id);
+ s_rule->index = cpu_to_le16(*rule_idx);
opc = ice_aqc_opc_remove_sw_rules;
}
@@ -222,15 +227,46 @@ ice_lag_cfg_dflt_fltr(struct ice_lag *lag, bool add)
goto dflt_fltr_free;
if (add)
- lag->pf_rule_id = le16_to_cpu(s_rule->index);
+ *rule_idx = le16_to_cpu(s_rule->index);
else
- lag->pf_rule_id = 0;
+ *rule_idx = 0;
dflt_fltr_free:
kfree(s_rule);
return err;
}
+/**
+ * ice_lag_cfg_dflt_fltr - Add/Remove default VSI rule for LAG
+ * @lag: lag struct for local interface
+ * @add: boolean on whether to add filter
+ */
+static int
+ice_lag_cfg_dflt_fltr(struct ice_lag *lag, bool add)
+{
+ u32 act = ICE_SINGLE_ACT_VSI_FORWARDING |
+ ICE_SINGLE_ACT_VALID_BIT | ICE_SINGLE_ACT_LAN_ENABLE;
+
+ return ice_lag_cfg_fltr(lag, act, lag->pf_recipe,
+ &lag->pf_rule_id, add);
+}
+
+/**
+ * ice_lag_cfg_drop_fltr - Add/Remove lport drop rule
+ * @lag: lag struct for local interface
+ * @add: boolean on whether to add filter
+ */
+static int
+ice_lag_cfg_drop_fltr(struct ice_lag *lag, bool add)
+{
+ u32 act = ICE_SINGLE_ACT_VSI_FORWARDING |
+ ICE_SINGLE_ACT_VALID_BIT |
+ ICE_SINGLE_ACT_DROP;
+
+ return ice_lag_cfg_fltr(lag, act, lag->lport_recipe,
+ &lag->lport_rule_idx, add);
+}
+
/**
* ice_lag_cfg_pf_fltrs - set filters up for new active port
* @lag: local interfaces lag struct
@@ -257,13 +293,18 @@ ice_lag_cfg_pf_fltrs(struct ice_lag *lag, void *ptr)
if (bonding_info->slave.state && lag->pf_rule_id) {
if (ice_lag_cfg_dflt_fltr(lag, false))
dev_err(dev, "Error removing old default VSI filter\n");
+ if (ice_lag_cfg_drop_fltr(lag, true))
+ dev_err(dev, "Error adding new drop filter\n");
return;
}
/* interface becoming active - add new default VSI rule */
- if (!bonding_info->slave.state && !lag->pf_rule_id)
+ if (!bonding_info->slave.state && !lag->pf_rule_id) {
if (ice_lag_cfg_dflt_fltr(lag, true))
dev_err(dev, "Error adding new default VSI filter\n");
+ if (lag->lport_rule_idx && ice_lag_cfg_drop_fltr(lag, false))
+ dev_err(dev, "Error removing old drop filter\n");
+ }
}
/**
@@ -1195,6 +1236,7 @@ static void ice_lag_changeupper_event(struct ice_lag *lag, void *ptr)
swid = primary_lag->pf->hw.port_info->sw_id;
ice_lag_set_swid(swid, lag, true);
ice_lag_add_prune_list(primary_lag, lag->pf);
+ ice_lag_cfg_drop_fltr(lag, true);
}
/* add filter for primary control packets */
ice_lag_cfg_cp_fltr(lag, true);
@@ -1953,11 +1995,16 @@ int ice_init_lag(struct ice_pf *pf)
goto lag_error;
}
- err = ice_create_lag_recipe(&pf->hw, &lag->pf_recipe, ice_dflt_vsi_rcp,
- 1);
+ err = ice_create_lag_recipe(&pf->hw, &lag->pf_recipe,
+ ice_dflt_vsi_rcp, 1);
if (err)
goto lag_error;
+ err = ice_create_lag_recipe(&pf->hw, &lag->lport_recipe,
+ ice_lport_rcp, 3);
+ if (err)
+ goto free_rcp_res;
+
/* associate recipes to profiles */
for (n = 0; n < ICE_PROFID_IPV6_GTPU_IPV6_TCP_INNER; n++) {
err = ice_aq_get_recipe_to_profile(&pf->hw, n,
@@ -1966,7 +2013,8 @@ int ice_init_lag(struct ice_pf *pf)
continue;
if (recipe_bits & BIT(ICE_SW_LKUP_DFLT)) {
- recipe_bits |= BIT(lag->pf_recipe);
+ recipe_bits |= BIT(lag->pf_recipe) |
+ BIT(lag->lport_recipe);
ice_aq_map_recipe_to_profile(&pf->hw, n,
(u8 *)&recipe_bits, NULL);
}
@@ -1977,6 +2025,9 @@ int ice_init_lag(struct ice_pf *pf)
dev_dbg(dev, "INIT LAG complete\n");
return 0;
+free_rcp_res:
+ ice_free_hw_res(&pf->hw, ICE_AQC_RES_TYPE_RECIPE, 1,
+ &pf->lag->pf_recipe);
lag_error:
kfree(lag);
pf->lag = NULL;
@@ -2006,6 +2057,8 @@ void ice_deinit_lag(struct ice_pf *pf)
ice_free_hw_res(&pf->hw, ICE_AQC_RES_TYPE_RECIPE, 1,
&pf->lag->pf_recipe);
+ ice_free_hw_res(&pf->hw, ICE_AQC_RES_TYPE_RECIPE, 1,
+ &pf->lag->lport_recipe);
kfree(lag);
diff --git a/drivers/net/ethernet/intel/ice/ice_lag.h b/drivers/net/ethernet/intel/ice/ice_lag.h
index 18075b82485a..c29a27f16b81 100644
--- a/drivers/net/ethernet/intel/ice/ice_lag.h
+++ b/drivers/net/ethernet/intel/ice/ice_lag.h
@@ -39,8 +39,10 @@ struct ice_lag {
u8 bonded:1; /* currently bonded */
u8 primary:1; /* this is primary */
u16 pf_recipe;
+ u16 lport_recipe;
u16 pf_rule_id;
u16 cp_rule_idx;
+ u16 lport_rule_idx;
u8 role;
};
--
2.41.0
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