From 2662b3f93d2617719e68bbb1031491461afa2812 Mon Sep 17 00:00:00 2001 From: Horatiu Vultur Date: Sat, 3 Dec 2022 11:43:46 +0100 Subject: 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 Signed-off-by: Paolo Abeni --- drivers/net/ethernet/microchip/vcap/vcap_api.c | 36 ++++++++++++++++++++++ .../net/ethernet/microchip/vcap/vcap_api_client.h | 2 ++ 2 files changed, 38 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api.c b/drivers/net/ethernet/microchip/vcap/vcap_api.c index 27128313f15f..eae4e9fe0e14 100644 --- a/drivers/net/ethernet/microchip/vcap/vcap_api.c +++ b/drivers/net/ethernet/microchip/vcap/vcap_api.c @@ -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) { diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api_client.h b/drivers/net/ethernet/microchip/vcap/vcap_api_client.h index a354dcd741e2..fdfc5d58813b 100644 --- a/drivers/net/ethernet/microchip/vcap/vcap_api_client.h +++ b/drivers/net/ethernet/microchip/vcap/vcap_api_client.h @@ -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, -- cgit v1.2.3