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net: microchip: vcap: Add vcap_mod_rule 

Add the function vcap_mod_rule which allows to update an existing rule
in the vcap. It is required for the rule to exist in the vcap to be able
to modify it.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Horatiu Vultur 2022-12-03 11:43:46 +01:00 committed by Paolo Abeni
parent 610c32b2ce
commit 2662b3f93d
2 changed files with 38 additions and 0 deletions
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36
drivers/net/ethernet/microchip/vcap/vcap_api.c
View File

@ -1955,6 +1955,42 @@ unlock:
}
EXPORT_SYMBOL_GPL(vcap_get_rule);
/* Update existing rule */
int vcap_mod_rule(struct vcap_rule *rule)
{
struct vcap_rule_internal *ri = to_intrule(rule);
struct vcap_counter ctr;
int err;
err = vcap_api_check(ri->vctrl);
if (err)
return err;
if (!vcap_lookup_rule(ri->vctrl, ri->data.id))
return -ENOENT;
mutex_lock(&ri->admin->lock);
/* Encode the bitstreams to the VCAP cache */
vcap_erase_cache(ri);
err = vcap_encode_rule(ri);
if (err)
goto out;
err = vcap_write_rule(ri);
if (err)
goto out;
memset(&ctr, 0, sizeof(ctr));
err = vcap_write_counter(ri, &ctr);
if (err)
goto out;
out:
mutex_unlock(&ri->admin->lock);
return err;
}
EXPORT_SYMBOL_GPL(vcap_mod_rule);
/* Return the alignment offset for a new rule address */
static int vcap_valid_rule_move(struct vcap_rule_internal *el, int offset)
{

2
drivers/net/ethernet/microchip/vcap/vcap_api_client.h
View File

@ -172,6 +172,8 @@ int vcap_del_rule(struct vcap_control *vctrl, struct net_device *ndev, u32 id);
struct vcap_rule *vcap_copy_rule(struct vcap_rule *rule);
/* Get rule from a VCAP instance */
struct vcap_rule *vcap_get_rule(struct vcap_control *vctrl, u32 id);
/* Update existing rule */
int vcap_mod_rule(struct vcap_rule *rule);
/* Update the keyset for the rule */
int vcap_set_rule_set_keyset(struct vcap_rule *rule,