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iavf: refactor VLAN filter states 

The VLAN filter states are currently being saved as individual bits.
This is error prone as multiple bits might be mistakenly set.

Fix by replacing the bits with a single state enum. Also, add an
"ACTIVE" state for filters that are accepted by the PF.

Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Ahmed Zaki 2023-04-06 15:35:27 -06:00 committed by Tony Nguyen
parent b9881d9a76
commit 0c0da0e951
3 changed files with 28 additions and 26 deletions
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15
drivers/net/ethernet/intel/iavf/iavf.h
View File

@ -158,15 +158,18 @@ struct iavf_vlan {
u16 tpid;
};
enum iavf_vlan_state_t {
IAVF_VLAN_INVALID,
IAVF_VLAN_ADD, /* filter needs to be added */
IAVF_VLAN_IS_NEW, /* filter is new, wait for PF answer */
IAVF_VLAN_ACTIVE, /* filter is accepted by PF */
IAVF_VLAN_REMOVE, /* filter needs to be removed */
};
struct iavf_vlan_filter {
struct list_head list;
struct iavf_vlan vlan;
struct {
u8 is_new_vlan:1; /* filter is new, wait for PF answer */
u8 remove:1; /* filter needs to be removed */
u8 add:1; /* filter needs to be added */
u8 padding:5;
};
enum iavf_vlan_state_t state;
};
#define IAVF_MAX_TRAFFIC_CLASS 4

8
drivers/net/ethernet/intel/iavf/iavf_main.c
View File

@ -791,7 +791,7 @@ iavf_vlan_filter *iavf_add_vlan(struct iavf_adapter *adapter,
f->vlan = vlan;
list_add_tail(&f->list, &adapter->vlan_filter_list);
f->add = true;
f->state = IAVF_VLAN_ADD;
adapter->aq_required |= IAVF_FLAG_AQ_ADD_VLAN_FILTER;
}
@ -813,7 +813,7 @@ static void iavf_del_vlan(struct iavf_adapter *adapter, struct iavf_vlan vlan)
f = iavf_find_vlan(adapter, vlan);
if (f) {
f->remove = true;
f->state = IAVF_VLAN_REMOVE;
adapter->aq_required |= IAVF_FLAG_AQ_DEL_VLAN_FILTER;
}
@ -1296,11 +1296,11 @@ static void iavf_clear_mac_vlan_filters(struct iavf_adapter *adapter)
/* remove all VLAN filters */
list_for_each_entry_safe(vlf, vlftmp, &adapter->vlan_filter_list,
list) {
if (vlf->add) {
if (vlf->state == IAVF_VLAN_ADD) {
list_del(&vlf->list);
kfree(vlf);
} else {
vlf->remove = true;
vlf->state = IAVF_VLAN_REMOVE;
}
}
spin_unlock_bh(&adapter->mac_vlan_list_lock);

31
drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
View File

@ -642,7 +642,7 @@ static void iavf_vlan_add_reject(struct iavf_adapter *adapter)
spin_lock_bh(&adapter->mac_vlan_list_lock);
list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
if (f->is_new_vlan) {
if (f->state == IAVF_VLAN_IS_NEW) {
if (f->vlan.tpid == ETH_P_8021Q)
clear_bit(f->vlan.vid,
adapter->vsi.active_cvlans);
@ -679,7 +679,7 @@ void iavf_add_vlans(struct iavf_adapter *adapter)
spin_lock_bh(&adapter->mac_vlan_list_lock);
list_for_each_entry(f, &adapter->vlan_filter_list, list) {
if (f->add)
if (f->state == IAVF_VLAN_ADD)
count++;
}
if (!count || !VLAN_FILTERING_ALLOWED(adapter)) {
@ -710,11 +710,10 @@ void iavf_add_vlans(struct iavf_adapter *adapter)
vvfl->vsi_id = adapter->vsi_res->vsi_id;
vvfl->num_elements = count;
list_for_each_entry(f, &adapter->vlan_filter_list, list) {
if (f->add) {
if (f->state == IAVF_VLAN_ADD) {
vvfl->vlan_id[i] = f->vlan.vid;
i++;
f->add = false;
f->is_new_vlan = true;
f->state = IAVF_VLAN_IS_NEW;
if (i == count)
break;
}
@ -760,7 +759,7 @@ void iavf_add_vlans(struct iavf_adapter *adapter)
vvfl_v2->vport_id = adapter->vsi_res->vsi_id;
vvfl_v2->num_elements = count;
list_for_each_entry(f, &adapter->vlan_filter_list, list) {
if (f->add) {
if (f->state == IAVF_VLAN_ADD) {
struct virtchnl_vlan_supported_caps *filtering_support =
&adapter->vlan_v2_caps.filtering.filtering_support;
struct virtchnl_vlan *vlan;
@ -778,8 +777,7 @@ void iavf_add_vlans(struct iavf_adapter *adapter)
vlan->tpid = f->vlan.tpid;
i++;
f->add = false;
f->is_new_vlan = true;
f->state = IAVF_VLAN_IS_NEW;
}
}
@ -822,10 +820,11 @@ void iavf_del_vlans(struct iavf_adapter *adapter)
* filters marked for removal to enable bailing out before
* sending a virtchnl message
*/
if (f->remove && !VLAN_FILTERING_ALLOWED(adapter)) {
if (f->state == IAVF_VLAN_REMOVE &&
!VLAN_FILTERING_ALLOWED(adapter)) {
list_del(&f->list);
kfree(f);
} else if (f->remove) {
} else if (f->state == IAVF_VLAN_REMOVE) {
count++;
}
}
@ -857,7 +856,7 @@ void iavf_del_vlans(struct iavf_adapter *adapter)
vvfl->vsi_id = adapter->vsi_res->vsi_id;
vvfl->num_elements = count;
list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
if (f->remove) {
if (f->state == IAVF_VLAN_REMOVE) {
vvfl->vlan_id[i] = f->vlan.vid;
i++;
list_del(&f->list);
@ -901,7 +900,7 @@ void iavf_del_vlans(struct iavf_adapter *adapter)
vvfl_v2->vport_id = adapter->vsi_res->vsi_id;
vvfl_v2->num_elements = count;
list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
if (f->remove) {
if (f->state == IAVF_VLAN_REMOVE) {
struct virtchnl_vlan_supported_caps *filtering_support =
&adapter->vlan_v2_caps.filtering.filtering_support;
struct virtchnl_vlan *vlan;
@ -2192,7 +2191,7 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter,
list_for_each_entry(vlf,
&adapter->vlan_filter_list,
list)
vlf->add = true;
vlf->state = IAVF_VLAN_ADD;
adapter->aq_required |=
IAVF_FLAG_AQ_ADD_VLAN_FILTER;
@ -2260,7 +2259,7 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter,
list_for_each_entry(vlf,
&adapter->vlan_filter_list,
list)
vlf->add = true;
vlf->state = IAVF_VLAN_ADD;
aq_required |= IAVF_FLAG_AQ_ADD_VLAN_FILTER;
}
@ -2444,8 +2443,8 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter,
spin_lock_bh(&adapter->mac_vlan_list_lock);
list_for_each_entry(f, &adapter->vlan_filter_list, list) {
if (f->is_new_vlan) {
f->is_new_vlan = false;
if (f->state == IAVF_VLAN_IS_NEW) {
f->state = IAVF_VLAN_ACTIVE;
if (f->vlan.tpid == ETH_P_8021Q)
set_bit(f->vlan.vid,
adapter->vsi.active_cvlans);