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net: microchip: sparx5: Add support to check for existing VCAP rule id

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Add a new function that just checks if the VCAP rule id is already used by
an existing rule.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steen Hegelund
2023-01-17 09:55:41 +01:00
committed by David S. Miller
parent 27d293ccee
commit 975d86acae
1 changed files with 16 additions and 2 deletions
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drivers/net/ethernet/microchip/vcap/vcap_api.c
+16 -2
View File
@@ -920,6 +920,20 @@ int vcap_set_rule_set_actionset(struct vcap_rule *rule,
}
EXPORT_SYMBOL_GPL(vcap_set_rule_set_actionset);
/* Check if a rule with this id exists */
static bool vcap_rule_exists(struct vcap_control *vctrl, u32 id)
{
struct vcap_rule_internal *ri;
struct vcap_admin *admin;
/* Look for the rule id in all vcaps */
list_for_each_entry(admin, &vctrl->list, list)
list_for_each_entry(ri, &admin->rules, list)
if (ri->data.id == id)
return true;
return false;
}
/* Find a rule with a provided rule id */
static struct vcap_rule_internal *vcap_lookup_rule(struct vcap_control *vctrl,
u32 id)
@@ -1866,7 +1880,7 @@ static u32 vcap_set_rule_id(struct vcap_rule_internal *ri)
return ri->data.id;
for (u32 next_id = 1; next_id < ~0; ++next_id) {
if (!vcap_lookup_rule(ri->vctrl, next_id)) {
if (!vcap_rule_exists(ri->vctrl, next_id)) {
ri->data.id = next_id;
break;
}
@@ -2103,7 +2117,7 @@ struct vcap_rule *vcap_alloc_rule(struct vcap_control *vctrl,
if (vctrl->vcaps[admin->vtype].rows == 0)
return ERR_PTR(-EINVAL);
/* Check if a rule with this id already exists */
if (vcap_lookup_rule(vctrl, id))
if (vcap_rule_exists(vctrl, id))
return ERR_PTR(-EEXIST);
/* Check if there is room for the rule in the block(s) of the VCAP */
maxsize = vctrl->vcaps[admin->vtype].sw_count; /* worst case rule size */