diff mbox series

[net,04/10] ice: clear port vlan config during reset

Message ID 20240930223601.3137464-5-anthony.l.nguyen@intel.com (mailing list archive)
State Accepted
Commit d019b1a9128d65956f04679ec2bb8b0800f13358
Delegated to: Netdev Maintainers
Headers show
Series Intel Wired LAN Driver Updates 2024-09-30 (ice, idpf) | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn fail Errors and warnings before: 12 this patch: 12
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 79 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 48 this patch: 48
netdev/source_inline success Was 0 now: 0

Commit Message

Tony Nguyen Sept. 30, 2024, 10:35 p.m. UTC 
From: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>

Since commit 2a2cb4c6c181 ("ice: replace ice_vf_recreate_vsi() with
ice_vf_reconfig_vsi()") VF VSI is only reconfigured instead of
recreated. The context configuration from previous setting is still the
same. If any of the config needs to be cleared it needs to be cleared
explicitly.

Previously there was assumption that port vlan will be cleared
automatically. Now, when VSI is only reconfigured we have to do it in the
code.

Not clearing port vlan configuration leads to situation when the driver
VSI config is different than the VSI config in HW. Traffic can't be
passed after setting and clearing port vlan, because of invalid VSI
config in HW.

Example reproduction:
> ip a a dev $(VF) $(VF_IP_ADDRESS)
> ip l s dev $(VF) up
> ping $(VF_IP_ADDRESS)
ping is working fine here
> ip link set eth5 vf 0 vlan 100
> ip link set eth5 vf 0 vlan 0
> ping $(VF_IP_ADDRESS)
ping isn't working

Fixes: 2a2cb4c6c181 ("ice: replace ice_vf_recreate_vsi() with ice_vf_reconfig_vsi()")
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Piotr Tyda <piotr.tyda@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_vf_lib.c   |  7 +++
 .../net/ethernet/intel/ice/ice_vsi_vlan_lib.c | 57 +++++++++++++++++++
 .../net/ethernet/intel/ice/ice_vsi_vlan_lib.h |  1 +
 3 files changed, 65 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/ice_vf_lib.c b/drivers/net/ethernet/intel/ice/ice_vf_lib.c
index a69e91f88d81..749a08ccf267 100644
--- a/drivers/net/ethernet/intel/ice/ice_vf_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_vf_lib.c
@@ -335,6 +335,13 @@  static int ice_vf_rebuild_host_vlan_cfg(struct ice_vf *vf, struct ice_vsi *vsi)
 
 		err = vlan_ops->add_vlan(vsi, &vf->port_vlan_info);
 	} else {
+		/* clear possible previous port vlan config */
+		err = ice_vsi_clear_port_vlan(vsi);
+		if (err) {
+			dev_err(dev, "failed to clear port VLAN via VSI parameters for VF %u, error %d\n",
+				vf->vf_id, err);
+			return err;
+		}
 		err = ice_vsi_add_vlan_zero(vsi);
 	}
 
diff --git a/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.c b/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.c
index 6e8f2aab6080..5291f2888ef8 100644
--- a/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.c
@@ -787,3 +787,60 @@  int ice_vsi_clear_outer_port_vlan(struct ice_vsi *vsi)
 	kfree(ctxt);
 	return err;
 }
+
+int ice_vsi_clear_port_vlan(struct ice_vsi *vsi)
+{
+	struct ice_hw *hw = &vsi->back->hw;
+	struct ice_vsi_ctx *ctxt;
+	int err;
+
+	ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
+	if (!ctxt)
+		return -ENOMEM;
+
+	ctxt->info = vsi->info;
+
+	ctxt->info.port_based_outer_vlan = 0;
+	ctxt->info.port_based_inner_vlan = 0;
+
+	ctxt->info.inner_vlan_flags =
+		FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_TX_MODE_M,
+			   ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL);
+	if (ice_is_dvm_ena(hw)) {
+		ctxt->info.inner_vlan_flags |=
+			FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_EMODE_M,
+				   ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING);
+		ctxt->info.outer_vlan_flags =
+			FIELD_PREP(ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M,
+				   ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ALL);
+		ctxt->info.outer_vlan_flags |=
+			FIELD_PREP(ICE_AQ_VSI_OUTER_TAG_TYPE_M,
+				   ICE_AQ_VSI_OUTER_TAG_VLAN_8100);
+		ctxt->info.outer_vlan_flags |=
+			ICE_AQ_VSI_OUTER_VLAN_EMODE_NOTHING <<
+			ICE_AQ_VSI_OUTER_VLAN_EMODE_S;
+	}
+
+	ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
+	ctxt->info.valid_sections =
+		cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID |
+			    ICE_AQ_VSI_PROP_VLAN_VALID |
+			    ICE_AQ_VSI_PROP_SW_VALID);
+
+	err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
+	if (err) {
+		dev_err(ice_pf_to_dev(vsi->back), "update VSI for clearing port based VLAN failed, err %d aq_err %s\n",
+			err, ice_aq_str(hw->adminq.sq_last_status));
+	} else {
+		vsi->info.port_based_outer_vlan =
+			ctxt->info.port_based_outer_vlan;
+		vsi->info.port_based_inner_vlan =
+			ctxt->info.port_based_inner_vlan;
+		vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
+		vsi->info.inner_vlan_flags = ctxt->info.inner_vlan_flags;
+		vsi->info.sw_flags2 = ctxt->info.sw_flags2;
+	}
+
+	kfree(ctxt);
+	return err;
+}
diff --git a/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.h b/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.h
index f0d84d11bd5b..12b227621a7d 100644
--- a/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.h
+++ b/drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.h
@@ -36,5 +36,6 @@  int ice_vsi_ena_outer_insertion(struct ice_vsi *vsi, u16 tpid);
 int ice_vsi_dis_outer_insertion(struct ice_vsi *vsi);
 int ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan);
 int ice_vsi_clear_outer_port_vlan(struct ice_vsi *vsi);
+int ice_vsi_clear_port_vlan(struct ice_vsi *vsi);
 
 #endif /* _ICE_VSI_VLAN_LIB_H_ */