drivers/net/ethernet/microchip/lan966x/lan966x_goto.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2
   3 #include "lan966x_main.h"
   4 #include "vcap_api_client.h"
   5
   6 int lan966x_goto_port_add(struct lan966x_port *port,
   7                           int from_cid, int to_cid,
   8                           unsigned long goto_id,
   9                           struct netlink_ext_ack *extack)
  10 {
  11         struct lan966x *lan966x = port->lan966x;
  12         int err;
  13
  14         err = vcap_enable_lookups(lan966x->vcap_ctrl, port->dev,
  15                                   from_cid, to_cid, goto_id,
  16                                   true);
  17         if (err == -EFAULT) {
  18                 NL_SET_ERR_MSG_MOD(extack, "Unsupported goto chain");
  19                 return -EOPNOTSUPP;
  20         }
  21
  22         if (err == -EADDRINUSE) {
  23                 NL_SET_ERR_MSG_MOD(extack, "VCAP already enabled");
  24                 return -EOPNOTSUPP;
  25         }
  26
  27         if (err) {
  28                 NL_SET_ERR_MSG_MOD(extack, "Could not enable VCAP lookups");
  29                 return err;
  30         }
  31
  32         return 0;
  33 }
  34
  35 int lan966x_goto_port_del(struct lan966x_port *port,
  36                           unsigned long goto_id,
  37                           struct netlink_ext_ack *extack)
  38 {
  39         struct lan966x *lan966x = port->lan966x;
  40         int err;
  41
  42         err = vcap_enable_lookups(lan966x->vcap_ctrl, port->dev, 0, 0,
  43                                   goto_id, false);
  44         if (err) {
  45                 NL_SET_ERR_MSG_MOD(extack, "Could not disable VCAP lookups");
  46                 return err;
  47         }
  48
  49         return 0;
  50 }