diff options
| author | Horatiu Vultur <horatiu.vultur@microchip.com> | 2022-12-03 13:43:46 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2022-12-06 15:26:43 +0300 |
| commit | 2662b3f93d2617719e68bbb1031491461afa2812 (patch) | |
| tree | 94c5be27f52e38a0a333ca71391ced04559f55b4 /drivers/net/ethernet/microchip/vcap/vcap_api.c | |
| parent | 610c32b2ce66d4aaa07b3a77a709bd4d2b268bb1 (diff) | |
| download | linux-2662b3f93d2617719e68bbb1031491461afa2812.tar.xz | |
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>
Diffstat (limited to 'drivers/net/ethernet/microchip/vcap/vcap_api.c')
| -rw-r--r-- | drivers/net/ethernet/microchip/vcap/vcap_api.c | 36 |
1 files changed, 36 insertions, 0 deletions
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) { |