Commit 81e164c4 authored by Steen Hegelund's avatar Steen Hegelund Committed by Paolo Abeni

net: microchip: sparx5: Add automatic selection of VCAP rule actionset

With more than one possible actionset in a VCAP instance, the VCAP API will
now use the actions in a VCAP rule to select the actionset that fits these
actions the best possible way.
Signed-off-by: default avatarSteen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 88bd9ea7
......@@ -991,11 +991,6 @@ static int sparx5_tc_flower_replace(struct net_device *ndev,
SPX5_PMM_REPLACE_ALL);
if (err)
goto out;
/* For now the actionset is hardcoded */
err = vcap_set_rule_set_actionset(vrule,
VCAP_AFS_BASE_TYPE);
if (err)
goto out;
break;
case FLOW_ACTION_ACCEPT:
err = sparx5_tc_set_actionset(admin, vrule);
......
......@@ -1757,6 +1757,22 @@ bool vcap_keyset_list_add(struct vcap_keyset_list *keysetlist,
}
EXPORT_SYMBOL_GPL(vcap_keyset_list_add);
/* Add a actionset to a actionset list */
static bool vcap_actionset_list_add(struct vcap_actionset_list *actionsetlist,
enum vcap_actionfield_set actionset)
{
int idx;
if (actionsetlist->cnt < actionsetlist->max) {
/* Avoid duplicates */
for (idx = 0; idx < actionsetlist->cnt; ++idx)
if (actionsetlist->actionsets[idx] == actionset)
return actionsetlist->cnt < actionsetlist->max;
actionsetlist->actionsets[actionsetlist->cnt++] = actionset;
}
return actionsetlist->cnt < actionsetlist->max;
}
/* map keyset id to a string with the keyset name */
const char *vcap_keyset_name(struct vcap_control *vctrl,
enum vcap_keyfield_set keyset)
......@@ -1865,6 +1881,75 @@ bool vcap_rule_find_keysets(struct vcap_rule *rule,
}
EXPORT_SYMBOL_GPL(vcap_rule_find_keysets);
/* Return the actionfield that matches a action in a actionset */
static const struct vcap_field *
vcap_find_actionset_actionfield(struct vcap_control *vctrl,
enum vcap_type vtype,
enum vcap_actionfield_set actionset,
enum vcap_action_field action)
{
const struct vcap_field *fields;
int idx, count;
fields = vcap_actionfields(vctrl, vtype, actionset);
if (!fields)
return NULL;
/* Iterate the actionfields of the actionset */
count = vcap_actionfield_count(vctrl, vtype, actionset);
for (idx = 0; idx < count; ++idx) {
if (fields[idx].width == 0)
continue;
if (action == idx)
return &fields[idx];
}
return NULL;
}
/* Match a list of actions against the actionsets available in a vcap type */
static bool vcap_rule_find_actionsets(struct vcap_rule_internal *ri,
struct vcap_actionset_list *matches)
{
int actionset, found, actioncount, map_size;
const struct vcap_client_actionfield *ckf;
const struct vcap_field **map;
enum vcap_type vtype;
vtype = ri->admin->vtype;
map = ri->vctrl->vcaps[vtype].actionfield_set_map;
map_size = ri->vctrl->vcaps[vtype].actionfield_set_size;
/* Get a count of the actionfields we want to match */
actioncount = 0;
list_for_each_entry(ckf, &ri->data.actionfields, ctrl.list)
++actioncount;
matches->cnt = 0;
/* Iterate the actionsets of the VCAP */
for (actionset = 0; actionset < map_size; ++actionset) {
if (!map[actionset])
continue;
/* Iterate the actions in the rule */
found = 0;
list_for_each_entry(ckf, &ri->data.actionfields, ctrl.list)
if (vcap_find_actionset_actionfield(ri->vctrl, vtype,
actionset,
ckf->ctrl.action))
++found;
/* Save the actionset if all actionfields were found */
if (found == actioncount)
if (!vcap_actionset_list_add(matches, actionset))
/* bail out when the quota is filled */
break;
}
return matches->cnt > 0;
}
/* Validate a rule with respect to available port keys */
int vcap_val_rule(struct vcap_rule *rule, u16 l3_proto)
{
......@@ -1916,12 +2001,24 @@ int vcap_val_rule(struct vcap_rule *rule, u16 l3_proto)
return ret;
}
if (ri->data.actionset == VCAP_AFS_NO_VALUE) {
/* Later also actionsets will be matched against actions in
* the rule, and the type will be set accordingly
*/
struct vcap_actionset_list matches = {};
enum vcap_actionfield_set actionsets[10];
matches.actionsets = actionsets;
matches.max = ARRAY_SIZE(actionsets);
/* Find an actionset that fits the rule actions */
if (!vcap_rule_find_actionsets(ri, &matches)) {
ri->data.exterr = VCAP_ERR_NO_ACTIONSET_MATCH;
return -EINVAL;
}
ret = vcap_set_rule_set_actionset(rule, actionsets[0]);
if (ret < 0) {
pr_err("%s:%d: actionset was not updated: %d\n",
__func__, __LINE__, ret);
return ret;
}
}
vcap_add_type_keyfield(rule);
vcap_add_type_actionfield(rule);
/* Add default fields to this rule */
......
......@@ -201,6 +201,13 @@ struct vcap_keyset_list {
enum vcap_keyfield_set *keysets; /* the list of keysets */
};
/* List of actionsets */
struct vcap_actionset_list {
int max; /* size of the actionset list */
int cnt; /* count of actionsets actually in the list */
enum vcap_actionfield_set *actionsets; /* the list of actionsets */
};
/* Client output printf-like function with destination */
struct vcap_output_print {
__printf(2, 3)
......
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