@@ -173,6 +173,7 @@ const struct vcap_set *vcap_keyfieldset(struct vcap_control *vctrl,
return NULL;
return kset;
}
+EXPORT_SYMBOL_GPL(vcap_keyfieldset);
/* Return the typegroup table for the matching keyset (using subword size) */
const struct vcap_typegroup *
@@ -824,8 +825,8 @@ vcap_find_keyset_keyfield(struct vcap_control *vctrl,
}
/* Match a list of keys against the keysets available in a vcap type */
-static bool vcap_rule_find_keysets(struct vcap_rule_internal *ri,
- struct vcap_keyset_list *matches)
+static bool _vcap_rule_find_keysets(struct vcap_rule_internal *ri,
+ struct vcap_keyset_list *matches)
{
const struct vcap_client_keyfield *ckf;
int keyset, found, keycount, map_size;
@@ -864,6 +865,16 @@ static bool vcap_rule_find_keysets(struct vcap_rule_internal *ri,
return matches->cnt > 0;
}
+/* Match a list of keys against the keysets available in a vcap type */
+bool vcap_rule_find_keysets(struct vcap_rule *rule,
+ struct vcap_keyset_list *matches)
+{
+ struct vcap_rule_internal *ri = to_intrule(rule);
+
+ return _vcap_rule_find_keysets(ri, matches);
+}
+EXPORT_SYMBOL_GPL(vcap_rule_find_keysets);
+
/* Validate a rule with respect to available port keys */
int vcap_val_rule(struct vcap_rule *rule, u16 l3_proto)
{
@@ -888,7 +899,7 @@ int vcap_val_rule(struct vcap_rule *rule, u16 l3_proto)
matches.max = ARRAY_SIZE(keysets);
if (ri->data.keyset == VCAP_KFS_NO_VALUE) {
/* Iterate over rule keyfields and select keysets that fits */
- if (!vcap_rule_find_keysets(ri, &matches)) {
+ if (!_vcap_rule_find_keysets(ri, &matches)) {
ri->data.exterr = VCAP_ERR_NO_KEYSET_MATCH;
return -EINVAL;
}
@@ -1270,6 +1281,19 @@ int vcap_del_rules(struct vcap_control *vctrl, struct vcap_admin *admin)
}
EXPORT_SYMBOL_GPL(vcap_del_rules);
+/* Find a client key field in a rule */
+static struct vcap_client_keyfield *
+vcap_find_keyfield(struct vcap_rule *rule, enum vcap_key_field key)
+{
+ struct vcap_rule_internal *ri = to_intrule(rule);
+ struct vcap_client_keyfield *ckf;
+
+ list_for_each_entry(ckf, &ri->data.keyfields, ctrl.list)
+ if (ckf->ctrl.key == key)
+ return ckf;
+ return NULL;
+}
+
/* Find information on a key field in a rule */
const struct vcap_field *vcap_lookup_keyfield(struct vcap_rule *rule,
enum vcap_key_field key)
@@ -1434,6 +1458,19 @@ int vcap_rule_add_key_u128(struct vcap_rule *rule, enum vcap_key_field key,
}
EXPORT_SYMBOL_GPL(vcap_rule_add_key_u128);
+/* Find a client action field in a rule */
+static struct vcap_client_actionfield *
+vcap_find_actionfield(struct vcap_rule *rule, enum vcap_action_field act)
+{
+ struct vcap_rule_internal *ri = (struct vcap_rule_internal *)rule;
+ struct vcap_client_actionfield *caf;
+
+ list_for_each_entry(caf, &ri->data.actionfields, ctrl.list)
+ if (caf->ctrl.action == act)
+ return caf;
+ return NULL;
+}
+
static void vcap_copy_from_client_actionfield(struct vcap_rule *rule,
struct vcap_client_actionfield *field,
struct vcap_client_actionfield_data *data)
@@ -1772,6 +1809,148 @@ int vcap_rule_get_counter(struct vcap_rule *rule, struct vcap_counter *ctr)
}
EXPORT_SYMBOL_GPL(vcap_rule_get_counter);
+static int vcap_rule_mod_key(struct vcap_rule *rule,
+ enum vcap_key_field key,
+ enum vcap_field_type ftype,
+ struct vcap_client_keyfield_data *data)
+{
+ struct vcap_client_keyfield *field;
+
+ field = vcap_find_keyfield(rule, key);
+ if (!field)
+ return vcap_rule_add_key(rule, key, ftype, data);
+ vcap_copy_from_client_keyfield(rule, field, data);
+ return 0;
+}
+
+/* Modify a 32 bit key field with value and mask in the rule */
+int vcap_rule_mod_key_u32(struct vcap_rule *rule, enum vcap_key_field key,
+ u32 value, u32 mask)
+{
+ struct vcap_client_keyfield_data data;
+
+ data.u32.value = value;
+ data.u32.mask = mask;
+ return vcap_rule_mod_key(rule, key, VCAP_FIELD_U32, &data);
+}
+EXPORT_SYMBOL_GPL(vcap_rule_mod_key_u32);
+
+static int vcap_rule_mod_action(struct vcap_rule *rule,
+ enum vcap_action_field action,
+ enum vcap_field_type ftype,
+ struct vcap_client_actionfield_data *data)
+{
+ struct vcap_client_actionfield *field;
+
+ field = vcap_find_actionfield(rule, action);
+ if (!field)
+ return vcap_rule_add_action(rule, action, ftype, data);
+ vcap_copy_from_client_actionfield(rule, field, data);
+ return 0;
+}
+
+/* Modify a 32 bit action field with value in the rule */
+int vcap_rule_mod_action_u32(struct vcap_rule *rule,
+ enum vcap_action_field action,
+ u32 value)
+{
+ struct vcap_client_actionfield_data data;
+
+ data.u32.value = value;
+ return vcap_rule_mod_action(rule, action, VCAP_FIELD_U32, &data);
+}
+EXPORT_SYMBOL_GPL(vcap_rule_mod_action_u32);
+
+/* Drop keys in a keylist and any keys that are not supported by the keyset */
+int vcap_filter_rule_keys(struct vcap_rule *rule,
+ enum vcap_key_field keylist[], int length,
+ bool drop_unsupported)
+{
+ struct vcap_rule_internal *ri = to_intrule(rule);
+ struct vcap_client_keyfield *ckf, *next_ckf;
+ const struct vcap_field *fields;
+ enum vcap_key_field key;
+ int err = 0;
+ int idx;
+
+ if (length > 0) {
+ err = -EEXIST;
+ list_for_each_entry_safe(ckf, next_ckf,
+ &ri->data.keyfields, ctrl.list) {
+ key = ckf->ctrl.key;
+ for (idx = 0; idx < length; ++idx)
+ if (key == keylist[idx]) {
+ list_del(&ckf->ctrl.list);
+ kfree(ckf);
+ idx++;
+ err = 0;
+ }
+ }
+ }
+ if (drop_unsupported) {
+ err = -EEXIST;
+ fields = vcap_keyfields(ri->vctrl, ri->admin->vtype,
+ rule->keyset);
+ if (!fields)
+ return err;
+ list_for_each_entry_safe(ckf, next_ckf,
+ &ri->data.keyfields, ctrl.list) {
+ key = ckf->ctrl.key;
+ if (fields[key].width == 0) {
+ list_del(&ckf->ctrl.list);
+ kfree(ckf);
+ err = 0;
+ }
+ }
+ }
+ return err;
+}
+EXPORT_SYMBOL_GPL(vcap_filter_rule_keys);
+
+/* Make a full copy of an existing rule with a new rule id */
+struct vcap_rule *vcap_copy_rule(struct vcap_rule *erule)
+{
+ struct vcap_rule_internal *ri = to_intrule(erule);
+ struct vcap_client_actionfield *caf;
+ struct vcap_client_keyfield *ckf;
+ struct vcap_rule *rule;
+ int err;
+
+ err = vcap_api_check(ri->vctrl);
+ if (err)
+ return ERR_PTR(err);
+
+ rule = vcap_alloc_rule(ri->vctrl, ri->ndev, ri->data.vcap_chain_id,
+ ri->data.user, ri->data.priority, 0);
+ if (IS_ERR(rule))
+ return rule;
+
+ list_for_each_entry(ckf, &ri->data.keyfields, ctrl.list) {
+ /* Add a key duplicate in the new rule */
+ err = vcap_rule_add_key(rule,
+ ckf->ctrl.key,
+ ckf->ctrl.type,
+ &ckf->data);
+ if (err)
+ goto err;
+ }
+
+ list_for_each_entry(caf, &ri->data.actionfields, ctrl.list) {
+ /* Add a action duplicate in the new rule */
+ err = vcap_rule_add_action(rule,
+ caf->ctrl.action,
+ caf->ctrl.type,
+ &caf->data);
+ if (err)
+ goto err;
+ }
+ return rule;
+err:
+ vcap_free_rule(rule);
+ return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(vcap_copy_rule);
+
#ifdef CONFIG_VCAP_KUNIT_TEST
#include "vcap_api_kunit.c"
#endif
@@ -168,6 +168,8 @@ int vcap_val_rule(struct vcap_rule *rule, u16 l3_proto);
int vcap_add_rule(struct vcap_rule *rule);
/* Delete rule in a VCAP instance */
int vcap_del_rule(struct vcap_control *vctrl, struct net_device *ndev, u32 id);
+/* Make a full copy of an existing rule with a new rule id */
+struct vcap_rule *vcap_copy_rule(struct vcap_rule *rule);
/* Update the keyset for the rule */
int vcap_set_rule_set_keyset(struct vcap_rule *rule,
@@ -213,7 +215,13 @@ bool vcap_is_next_lookup(struct vcap_control *vctrl, int cur_cid, int next_cid);
/* Provide all rules via a callback interface */
int vcap_rule_iter(struct vcap_control *vctrl,
int (*callback)(void *, struct vcap_rule *), void *arg);
-
+/* Match a list of keys against the keysets available in a vcap type */
+bool vcap_rule_find_keysets(struct vcap_rule *rule,
+ struct vcap_keyset_list *matches);
+/* Return the keyset information for the keyset */
+const struct vcap_set *vcap_keyfieldset(struct vcap_control *vctrl,
+ enum vcap_type vt,
+ enum vcap_keyfield_set keyset);
/* Copy to host byte order */
void vcap_netbytes_copy(u8 *dst, u8 *src, int count);
@@ -226,6 +234,10 @@ int vcap_del_rules(struct vcap_control *vctrl, struct vcap_admin *admin);
/* Add a keyset to a keyset list */
bool vcap_keyset_list_add(struct vcap_keyset_list *keysetlist,
enum vcap_keyfield_set keyset);
+/* Drop keys in a keylist and any keys that are not supported by the keyset */
+int vcap_filter_rule_keys(struct vcap_rule *rule,
+ enum vcap_key_field keylist[], int length,
+ bool drop_unsupported);
/* map keyset id to a string with the keyset name */
const char *vcap_keyset_name(struct vcap_control *vctrl,
@@ -234,4 +246,12 @@ const char *vcap_keyset_name(struct vcap_control *vctrl,
const char *vcap_keyfield_name(struct vcap_control *vctrl,
enum vcap_key_field key);
+/* Modify a 32 bit key field with value and mask in the rule */
+int vcap_rule_mod_key_u32(struct vcap_rule *rule, enum vcap_key_field key,
+ u32 value, u32 mask);
+/* Modify a 32 bit action field with value in the rule */
+int vcap_rule_mod_action_u32(struct vcap_rule *rule,
+ enum vcap_action_field action,
+ u32 value);
+
#endif /* __VCAP_API_CLIENT__ */
@@ -1197,7 +1197,7 @@ static void vcap_api_rule_find_keyset_basic_test(struct kunit *test)
for (idx = 0; idx < ARRAY_SIZE(ckf); idx++)
list_add_tail(&ckf[idx].ctrl.list, &ri.data.keyfields);
- ret = vcap_rule_find_keysets(&ri, &matches);
+ ret = vcap_rule_find_keysets(&ri.data, &matches);
KUNIT_EXPECT_EQ(test, true, ret);
KUNIT_EXPECT_EQ(test, 1, matches.cnt);
@@ -1244,7 +1244,7 @@ static void vcap_api_rule_find_keyset_failed_test(struct kunit *test)
for (idx = 0; idx < ARRAY_SIZE(ckf); idx++)
list_add_tail(&ckf[idx].ctrl.list, &ri.data.keyfields);
- ret = vcap_rule_find_keysets(&ri, &matches);
+ ret = vcap_rule_find_keysets(&ri.data, &matches);
KUNIT_EXPECT_EQ(test, false, ret);
KUNIT_EXPECT_EQ(test, 0, matches.cnt);
@@ -1291,7 +1291,7 @@ static void vcap_api_rule_find_keyset_many_test(struct kunit *test)
for (idx = 0; idx < ARRAY_SIZE(ckf); idx++)
list_add_tail(&ckf[idx].ctrl.list, &ri.data.keyfields);
- ret = vcap_rule_find_keysets(&ri, &matches);
+ ret = vcap_rule_find_keysets(&ri.data, &matches);
KUNIT_EXPECT_EQ(test, true, ret);
KUNIT_EXPECT_EQ(test, 6, matches.cnt);
@@ -59,10 +59,6 @@ void vcap_iter_update(struct vcap_stream_iter *itr);
/* Keyset and keyfield functionality */
-/* Return the keyset information for the keyset */
-const struct vcap_set *vcap_keyfieldset(struct vcap_control *vctrl,
- enum vcap_type vt,
- enum vcap_keyfield_set keyset);
/* Return the number of keyfields in the keyset */
int vcap_keyfield_count(struct vcap_control *vctrl,
enum vcap_type vt, enum vcap_keyfield_set keyset);
This adds support for making a copy of a rule and modify keys and actions to differentiate the copy. Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com> --- .../net/ethernet/microchip/vcap/vcap_api.c | 185 +++++++++++++++++- .../ethernet/microchip/vcap/vcap_api_client.h | 22 ++- .../ethernet/microchip/vcap/vcap_api_kunit.c | 6 +- .../microchip/vcap/vcap_api_private.h | 4 - 4 files changed, 206 insertions(+), 11 deletions(-)