ice: implement bridge port vlan

Port VLAN in this case means push and pop VLAN action on specific vid.
There are a few limitation in hardware:
- push and pop can't be used separately
- if port VLAN is used there can't be any trunk VLANs, because pop
  action is done on all traffic received by VSI in port VLAN mode
- port VLAN mode on uplink port isn't supported

Reflect these limitations in code using dev_info to inform the user
about unsupported configuration.

In bridge mode there is a need to configure port vlan without resetting
VFs. To do that implement ice_port_vlan_on/off() functions. They are
only configuring correct vlan_ops to allow setting port vlan.

We also need to clear port vlan without resetting the VF which is not
supported right now. Change it by implementing clear_port_vlan ops.
As previous VLAN configuration isn't always the same, store current
config while creating port vlan and restore it in clear function.

Configuration steps:
- configure switchdev with bridge
- #bridge vlan add dev eth0 vid 120 pvid untagged
- #bridge vlan add dev eth1 vid 120 pvid untagged
- ping from VF0 to VF1

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Michal Swiatkowski 2023-07-12 13:03:35 +02:00 committed by Tony Nguyen
parent e9dda2cfab
commit 2946204b3f
8 changed files with 288 additions and 91 deletions

View File

@ -370,6 +370,7 @@ struct ice_vsi {
u16 rx_buf_len;
struct ice_aqc_vsi_props info; /* VSI properties */
struct ice_vsi_vlan_info vlan_info; /* vlan config to be restored */
/* VSI stats */
struct rtnl_link_stats64 net_stats;

View File

@ -5,6 +5,8 @@
#include "ice_eswitch_br.h"
#include "ice_repr.h"
#include "ice_switch.h"
#include "ice_vlan.h"
#include "ice_vf_vsi_vlan_ops.h"
static const struct rhashtable_params ice_fdb_ht_params = {
.key_offset = offsetof(struct ice_esw_br_fdb_entry, data),
@ -569,6 +571,22 @@ ice_eswitch_br_vlan_filtering_set(struct ice_esw_br *bridge, bool enable)
bridge->flags &= ~ICE_ESWITCH_BR_VLAN_FILTERING;
}
static void
ice_eswitch_br_clear_pvid(struct ice_esw_br_port *port)
{
struct ice_vlan port_vlan = ICE_VLAN(ETH_P_8021Q, port->pvid, 0);
struct ice_vsi_vlan_ops *vlan_ops;
vlan_ops = ice_get_compat_vsi_vlan_ops(port->vsi);
vlan_ops->del_vlan(port->vsi, &port_vlan);
vlan_ops->clear_port_vlan(port->vsi);
ice_vf_vsi_disable_port_vlan(port->vsi);
port->pvid = 0;
}
static void
ice_eswitch_br_vlan_cleanup(struct ice_esw_br_port *port,
struct ice_esw_br_vlan *vlan)
@ -582,6 +600,8 @@ ice_eswitch_br_vlan_cleanup(struct ice_esw_br_port *port,
}
xa_erase(&port->vlans, vlan->vid);
if (port->pvid == vlan->vid)
ice_eswitch_br_clear_pvid(port);
kfree(vlan);
}
@ -594,9 +614,50 @@ static void ice_eswitch_br_port_vlans_flush(struct ice_esw_br_port *port)
ice_eswitch_br_vlan_cleanup(port, vlan);
}
static int
ice_eswitch_br_set_pvid(struct ice_esw_br_port *port,
struct ice_esw_br_vlan *vlan)
{
struct ice_vlan port_vlan = ICE_VLAN(ETH_P_8021Q, vlan->vid, 0);
struct device *dev = ice_pf_to_dev(port->vsi->back);
struct ice_vsi_vlan_ops *vlan_ops;
int err;
if (port->pvid == vlan->vid || vlan->vid == 1)
return 0;
/* Setting port vlan on uplink isn't supported by hw */
if (port->type == ICE_ESWITCH_BR_UPLINK_PORT)
return -EOPNOTSUPP;
if (port->pvid) {
dev_info(dev,
"Port VLAN (vsi=%u, vid=%u) already exists on the port, remove it before adding new one\n",
port->vsi_idx, port->pvid);
return -EEXIST;
}
ice_vf_vsi_enable_port_vlan(port->vsi);
vlan_ops = ice_get_compat_vsi_vlan_ops(port->vsi);
err = vlan_ops->set_port_vlan(port->vsi, &port_vlan);
if (err)
return err;
err = vlan_ops->add_vlan(port->vsi, &port_vlan);
if (err)
return err;
ice_eswitch_br_port_vlans_flush(port);
port->pvid = vlan->vid;
return 0;
}
static struct ice_esw_br_vlan *
ice_eswitch_br_vlan_create(u16 vid, u16 flags, struct ice_esw_br_port *port)
{
struct device *dev = ice_pf_to_dev(port->vsi->back);
struct ice_esw_br_vlan *vlan;
int err;
@ -606,14 +667,30 @@ ice_eswitch_br_vlan_create(u16 vid, u16 flags, struct ice_esw_br_port *port)
vlan->vid = vid;
vlan->flags = flags;
err = xa_insert(&port->vlans, vlan->vid, vlan, GFP_KERNEL);
if (err) {
kfree(vlan);
return ERR_PTR(err);
if ((flags & BRIDGE_VLAN_INFO_PVID) &&
(flags & BRIDGE_VLAN_INFO_UNTAGGED)) {
err = ice_eswitch_br_set_pvid(port, vlan);
if (err)
goto err_set_pvid;
} else if ((flags & BRIDGE_VLAN_INFO_PVID) ||
(flags & BRIDGE_VLAN_INFO_UNTAGGED)) {
dev_info(dev, "VLAN push and pop are supported only simultaneously\n");
err = -EOPNOTSUPP;
goto err_set_pvid;
}
err = xa_insert(&port->vlans, vlan->vid, vlan, GFP_KERNEL);
if (err)
goto err_insert;
return vlan;
err_insert:
if (port->pvid)
ice_eswitch_br_clear_pvid(port);
err_set_pvid:
kfree(vlan);
return ERR_PTR(err);
}
static int
@ -627,6 +704,13 @@ ice_eswitch_br_port_vlan_add(struct ice_esw_br *bridge, u16 vsi_idx, u16 vid,
if (!port)
return -EINVAL;
if (port->pvid) {
dev_info(ice_pf_to_dev(port->vsi->back),
"Port VLAN (vsi=%u, vid=%d) exists on the port, remove it to add trunk VLANs\n",
port->vsi_idx, port->pvid);
return -EEXIST;
}
vlan = xa_load(&port->vlans, vid);
if (vlan) {
if (vlan->flags == flags)

View File

@ -42,6 +42,7 @@ struct ice_esw_br_port {
struct ice_vsi *vsi;
enum ice_esw_br_port_type type;
u16 vsi_idx;
u16 pvid;
struct xarray vlans;
};

View File

@ -21,6 +21,99 @@ noop_vlan(struct ice_vsi __always_unused *vsi)
return 0;
}
static void ice_port_vlan_on(struct ice_vsi *vsi)
{
struct ice_vsi_vlan_ops *vlan_ops;
struct ice_pf *pf = vsi->back;
if (ice_is_dvm_ena(&pf->hw)) {
vlan_ops = &vsi->outer_vlan_ops;
/* setup outer VLAN ops */
vlan_ops->set_port_vlan = ice_vsi_set_outer_port_vlan;
vlan_ops->clear_port_vlan = ice_vsi_clear_outer_port_vlan;
vlan_ops->clear_port_vlan = ice_vsi_clear_outer_port_vlan;
/* setup inner VLAN ops */
vlan_ops = &vsi->inner_vlan_ops;
vlan_ops->add_vlan = noop_vlan_arg;
vlan_ops->del_vlan = noop_vlan_arg;
vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping;
vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping;
vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion;
vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion;
} else {
vlan_ops = &vsi->inner_vlan_ops;
vlan_ops->set_port_vlan = ice_vsi_set_inner_port_vlan;
vlan_ops->clear_port_vlan = ice_vsi_clear_inner_port_vlan;
vlan_ops->clear_port_vlan = ice_vsi_clear_inner_port_vlan;
}
vlan_ops->ena_rx_filtering = ice_vsi_ena_rx_vlan_filtering;
}
static void ice_port_vlan_off(struct ice_vsi *vsi)
{
struct ice_vsi_vlan_ops *vlan_ops;
struct ice_pf *pf = vsi->back;
/* setup inner VLAN ops */
vlan_ops = &vsi->inner_vlan_ops;
vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping;
vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping;
vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion;
vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion;
if (ice_is_dvm_ena(&pf->hw)) {
vlan_ops = &vsi->outer_vlan_ops;
vlan_ops->del_vlan = ice_vsi_del_vlan;
vlan_ops->ena_stripping = ice_vsi_ena_outer_stripping;
vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping;
vlan_ops->ena_insertion = ice_vsi_ena_outer_insertion;
vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion;
} else {
vlan_ops->del_vlan = ice_vsi_del_vlan;
}
if (!test_bit(ICE_FLAG_VF_VLAN_PRUNING, pf->flags))
vlan_ops->ena_rx_filtering = noop_vlan;
else
vlan_ops->ena_rx_filtering =
ice_vsi_ena_rx_vlan_filtering;
}
/**
* ice_vf_vsi_enable_port_vlan - Set VSI VLAN ops to support port VLAN
* @vsi: VF's VSI being configured
*
* The function won't create port VLAN, it only allows to create port VLAN
* using VLAN ops on the VF VSI.
*/
void ice_vf_vsi_enable_port_vlan(struct ice_vsi *vsi)
{
if (WARN_ON_ONCE(!vsi->vf))
return;
ice_port_vlan_on(vsi);
}
/**
* ice_vf_vsi_disable_port_vlan - Clear VSI support for creating port VLAN
* @vsi: VF's VSI being configured
*
* The function should be called after removing port VLAN on VSI
* (using VLAN ops)
*/
void ice_vf_vsi_disable_port_vlan(struct ice_vsi *vsi)
{
if (WARN_ON_ONCE(!vsi->vf))
return;
ice_port_vlan_off(vsi);
}
/**
* ice_vf_vsi_init_vlan_ops - Initialize default VSI VLAN ops for VF VSI
* @vsi: VF's VSI being configured
@ -39,91 +132,18 @@ void ice_vf_vsi_init_vlan_ops(struct ice_vsi *vsi)
if (WARN_ON(!vf))
return;
if (ice_is_dvm_ena(&pf->hw)) {
vlan_ops = &vsi->outer_vlan_ops;
if (ice_vf_is_port_vlan_ena(vf))
ice_port_vlan_on(vsi);
else
ice_port_vlan_off(vsi);
/* outer VLAN ops regardless of port VLAN config */
vlan_ops->add_vlan = ice_vsi_add_vlan;
vlan_ops->ena_tx_filtering = ice_vsi_ena_tx_vlan_filtering;
vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering;
vlan_ops = ice_is_dvm_ena(&pf->hw) ?
&vsi->outer_vlan_ops : &vsi->inner_vlan_ops;
if (ice_vf_is_port_vlan_ena(vf)) {
/* setup outer VLAN ops */
vlan_ops->set_port_vlan = ice_vsi_set_outer_port_vlan;
/* all Rx traffic should be in the domain of the
* assigned port VLAN, so prevent disabling Rx VLAN
* filtering
*/
vlan_ops->dis_rx_filtering = noop_vlan;
vlan_ops->ena_rx_filtering =
ice_vsi_ena_rx_vlan_filtering;
/* setup inner VLAN ops */
vlan_ops = &vsi->inner_vlan_ops;
vlan_ops->add_vlan = noop_vlan_arg;
vlan_ops->del_vlan = noop_vlan_arg;
vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping;
vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping;
vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion;
vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion;
} else {
vlan_ops->dis_rx_filtering =
ice_vsi_dis_rx_vlan_filtering;
if (!test_bit(ICE_FLAG_VF_VLAN_PRUNING, pf->flags))
vlan_ops->ena_rx_filtering = noop_vlan;
else
vlan_ops->ena_rx_filtering =
ice_vsi_ena_rx_vlan_filtering;
vlan_ops->del_vlan = ice_vsi_del_vlan;
vlan_ops->ena_stripping = ice_vsi_ena_outer_stripping;
vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping;
vlan_ops->ena_insertion = ice_vsi_ena_outer_insertion;
vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion;
/* setup inner VLAN ops */
vlan_ops = &vsi->inner_vlan_ops;
vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping;
vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping;
vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion;
vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion;
}
} else {
vlan_ops = &vsi->inner_vlan_ops;
/* inner VLAN ops regardless of port VLAN config */
vlan_ops->add_vlan = ice_vsi_add_vlan;
vlan_ops->dis_rx_filtering = ice_vsi_dis_rx_vlan_filtering;
vlan_ops->ena_tx_filtering = ice_vsi_ena_tx_vlan_filtering;
vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering;
if (ice_vf_is_port_vlan_ena(vf)) {
vlan_ops->set_port_vlan = ice_vsi_set_inner_port_vlan;
vlan_ops->ena_rx_filtering =
ice_vsi_ena_rx_vlan_filtering;
/* all Rx traffic should be in the domain of the
* assigned port VLAN, so prevent disabling Rx VLAN
* filtering
*/
vlan_ops->dis_rx_filtering = noop_vlan;
} else {
vlan_ops->dis_rx_filtering =
ice_vsi_dis_rx_vlan_filtering;
if (!test_bit(ICE_FLAG_VF_VLAN_PRUNING, pf->flags))
vlan_ops->ena_rx_filtering = noop_vlan;
else
vlan_ops->ena_rx_filtering =
ice_vsi_ena_rx_vlan_filtering;
vlan_ops->del_vlan = ice_vsi_del_vlan;
vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping;
vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping;
vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion;
vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion;
}
}
vlan_ops->add_vlan = ice_vsi_add_vlan;
vlan_ops->dis_rx_filtering = ice_vsi_dis_rx_vlan_filtering;
vlan_ops->ena_tx_filtering = ice_vsi_ena_tx_vlan_filtering;
vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering;
}
/**

View File

@ -13,7 +13,11 @@ void ice_vf_vsi_cfg_svm_legacy_vlan_mode(struct ice_vsi *vsi);
#ifdef CONFIG_PCI_IOV
void ice_vf_vsi_init_vlan_ops(struct ice_vsi *vsi);
void ice_vf_vsi_enable_port_vlan(struct ice_vsi *vsi);
void ice_vf_vsi_disable_port_vlan(struct ice_vsi *vsi);
#else
static inline void ice_vf_vsi_init_vlan_ops(struct ice_vsi *vsi) { }
static inline void ice_vf_vsi_enable_port_vlan(struct ice_vsi *vsi) { }
static inline void ice_vf_vsi_disable_port_vlan(struct ice_vsi *vsi) { }
#endif /* CONFIG_PCI_IOV */
#endif /* _ICE_PF_VSI_VLAN_OPS_H_ */

View File

@ -202,6 +202,24 @@ int ice_vsi_dis_inner_insertion(struct ice_vsi *vsi)
return ice_vsi_manage_vlan_insertion(vsi);
}
static void
ice_save_vlan_info(struct ice_aqc_vsi_props *info,
struct ice_vsi_vlan_info *vlan)
{
vlan->sw_flags2 = info->sw_flags2;
vlan->inner_vlan_flags = info->inner_vlan_flags;
vlan->outer_vlan_flags = info->outer_vlan_flags;
}
static void
ice_restore_vlan_info(struct ice_aqc_vsi_props *info,
struct ice_vsi_vlan_info *vlan)
{
info->sw_flags2 = vlan->sw_flags2;
info->inner_vlan_flags = vlan->inner_vlan_flags;
info->outer_vlan_flags = vlan->outer_vlan_flags;
}
/**
* __ice_vsi_set_inner_port_vlan - set port VLAN VSI context settings to enable a port VLAN
* @vsi: the VSI to update
@ -218,6 +236,7 @@ static int __ice_vsi_set_inner_port_vlan(struct ice_vsi *vsi, u16 pvid_info)
if (!ctxt)
return -ENOMEM;
ice_save_vlan_info(&vsi->info, &vsi->vlan_info);
ctxt->info = vsi->info;
info = &ctxt->info;
info->inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_TX_MODE_ACCEPTUNTAGGED |
@ -259,6 +278,33 @@ int ice_vsi_set_inner_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
return __ice_vsi_set_inner_port_vlan(vsi, port_vlan_info);
}
int ice_vsi_clear_inner_port_vlan(struct ice_vsi *vsi)
{
struct ice_hw *hw = &vsi->back->hw;
struct ice_aqc_vsi_props *info;
struct ice_vsi_ctx *ctxt;
int ret;
ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
if (!ctxt)
return -ENOMEM;
ice_restore_vlan_info(&vsi->info, &vsi->vlan_info);
vsi->info.port_based_inner_vlan = 0;
ctxt->info = vsi->info;
info = &ctxt->info;
info->valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID |
ICE_AQ_VSI_PROP_SW_VALID);
ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
if (ret)
dev_err(ice_hw_to_dev(hw), "update VSI for port VLAN failed, err %d aq_err %s\n",
ret, ice_aq_str(hw->adminq.sq_last_status));
kfree(ctxt);
return ret;
}
/**
* ice_cfg_vlan_pruning - enable or disable VLAN pruning on the VSI
* @vsi: VSI to enable or disable VLAN pruning on
@ -647,6 +693,7 @@ __ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, u16 vlan_info, u16 tpid)
if (!ctxt)
return -ENOMEM;
ice_save_vlan_info(&vsi->info, &vsi->vlan_info);
ctxt->info = vsi->info;
ctxt->info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
@ -689,9 +736,6 @@ __ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, u16 vlan_info, u16 tpid)
* used if DVM is supported. Also, this function should never be called directly
* as it should be part of ice_vsi_vlan_ops if it's needed.
*
* This function does not support clearing the port VLAN as there is currently
* no use case for this.
*
* Use the ice_vlan structure passed in to set this VSI in a port VLAN.
*/
int ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
@ -705,3 +749,37 @@ int ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
return __ice_vsi_set_outer_port_vlan(vsi, port_vlan_info, vlan->tpid);
}
/**
* ice_vsi_clear_outer_port_vlan - clear outer port vlan
* @vsi: VSI to configure
*
* The function is restoring previously set vlan config (saved in
* vsi->vlan_info). Setting happens in port vlan configuration.
*/
int ice_vsi_clear_outer_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;
ice_restore_vlan_info(&vsi->info, &vsi->vlan_info);
vsi->info.port_based_outer_vlan = 0;
ctxt->info = vsi->info;
ctxt->info.valid_sections =
cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_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 outer port based VLAN failed, err %d aq_err %s\n",
err, ice_aq_str(hw->adminq.sq_last_status));
kfree(ctxt);
return err;
}

View File

@ -7,6 +7,12 @@
#include <linux/types.h>
#include "ice_vlan.h"
struct ice_vsi_vlan_info {
u8 sw_flags2;
u8 inner_vlan_flags;
u8 outer_vlan_flags;
};
struct ice_vsi;
int ice_vsi_add_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan);
@ -17,6 +23,7 @@ int ice_vsi_dis_inner_stripping(struct ice_vsi *vsi);
int ice_vsi_ena_inner_insertion(struct ice_vsi *vsi, u16 tpid);
int ice_vsi_dis_inner_insertion(struct ice_vsi *vsi);
int ice_vsi_set_inner_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan);
int ice_vsi_clear_inner_port_vlan(struct ice_vsi *vsi);
int ice_vsi_ena_rx_vlan_filtering(struct ice_vsi *vsi);
int ice_vsi_dis_rx_vlan_filtering(struct ice_vsi *vsi);
@ -28,5 +35,6 @@ int ice_vsi_dis_outer_stripping(struct ice_vsi *vsi);
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);
#endif /* _ICE_VSI_VLAN_LIB_H_ */

View File

@ -21,6 +21,7 @@ struct ice_vsi_vlan_ops {
int (*ena_tx_filtering)(struct ice_vsi *vsi);
int (*dis_tx_filtering)(struct ice_vsi *vsi);
int (*set_port_vlan)(struct ice_vsi *vsi, struct ice_vlan *vlan);
int (*clear_port_vlan)(struct ice_vsi *vsi);
};
void ice_vsi_init_vlan_ops(struct ice_vsi *vsi);