cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ice_vsi_vlan_ops.c (3075B)

      1// SPDX-License-Identifier: GPL-2.0
      2/* Copyright (C) 2019-2021, Intel Corporation. */
      3
      4#include "ice_pf_vsi_vlan_ops.h"
      5#include "ice_vf_vsi_vlan_ops.h"
      6#include "ice_lib.h"
      7#include "ice.h"
      8
      9static int
     10op_unsupported_vlan_arg(struct ice_vsi * __always_unused vsi,
     11			struct ice_vlan * __always_unused vlan)
     12{
     13	return -EOPNOTSUPP;
     14}
     15
     16static int
     17op_unsupported_tpid_arg(struct ice_vsi *__always_unused vsi,
     18			u16 __always_unused tpid)
     19{
     20	return -EOPNOTSUPP;
     21}
     22
     23static int op_unsupported(struct ice_vsi *__always_unused vsi)
     24{
     25	return -EOPNOTSUPP;
     26}
     27
     28/* If any new ops are added to the VSI VLAN ops interface then an unsupported
     29 * implementation should be set here.
     30 */
     31static struct ice_vsi_vlan_ops ops_unsupported = {
     32	.add_vlan = op_unsupported_vlan_arg,
     33	.del_vlan = op_unsupported_vlan_arg,
     34	.ena_stripping = op_unsupported_tpid_arg,
     35	.dis_stripping = op_unsupported,
     36	.ena_insertion = op_unsupported_tpid_arg,
     37	.dis_insertion = op_unsupported,
     38	.ena_rx_filtering = op_unsupported,
     39	.dis_rx_filtering = op_unsupported,
     40	.ena_tx_filtering = op_unsupported,
     41	.dis_tx_filtering = op_unsupported,
     42	.set_port_vlan = op_unsupported_vlan_arg,
     43};
     44
     45/**
     46 * ice_vsi_init_unsupported_vlan_ops - init all VSI VLAN ops to unsupported
     47 * @vsi: VSI to initialize VSI VLAN ops to unsupported for
     48 *
     49 * By default all inner and outer VSI VLAN ops return -EOPNOTSUPP. This was done
     50 * as oppsed to leaving the ops null to prevent unexpected crashes. Instead if
     51 * an unsupported VSI VLAN op is called it will just return -EOPNOTSUPP.
     52 *
     53 */
     54static void ice_vsi_init_unsupported_vlan_ops(struct ice_vsi *vsi)
     55{
     56	vsi->outer_vlan_ops = ops_unsupported;
     57	vsi->inner_vlan_ops = ops_unsupported;
     58}
     59
     60/**
     61 * ice_vsi_init_vlan_ops - initialize type specific VSI VLAN ops
     62 * @vsi: VSI to initialize ops for
     63 *
     64 * If any VSI types are added and/or require different ops than the PF or VF VSI
     65 * then they will have to add a case here to handle that. Also, VSI type
     66 * specific files should be added in the same manner that was done for PF VSI.
     67 */
     68void ice_vsi_init_vlan_ops(struct ice_vsi *vsi)
     69{
     70	/* Initialize all VSI types to have unsupported VSI VLAN ops */
     71	ice_vsi_init_unsupported_vlan_ops(vsi);
     72
     73	switch (vsi->type) {
     74	case ICE_VSI_PF:
     75	case ICE_VSI_SWITCHDEV_CTRL:
     76		ice_pf_vsi_init_vlan_ops(vsi);
     77		break;
     78	case ICE_VSI_VF:
     79		ice_vf_vsi_init_vlan_ops(vsi);
     80		break;
     81	default:
     82		dev_dbg(ice_pf_to_dev(vsi->back), "%s does not support VLAN operations\n",
     83			ice_vsi_type_str(vsi->type));
     84		break;
     85	}
     86}
     87
     88/**
     89 * ice_get_compat_vsi_vlan_ops - Get VSI VLAN ops based on VLAN mode
     90 * @vsi: VSI used to get the VSI VLAN ops
     91 *
     92 * This function is meant to be used when the caller doesn't know which VLAN ops
     93 * to use (i.e. inner or outer). This allows backward compatibility for VLANs
     94 * since most of the Outer VSI VLAN functins are not supported when
     95 * the device is configured in Single VLAN Mode (SVM).
     96 */
     97struct ice_vsi_vlan_ops *ice_get_compat_vsi_vlan_ops(struct ice_vsi *vsi)
     98{
     99	if (ice_is_dvm_ena(&vsi->back->hw))
    100		return &vsi->outer_vlan_ops;
    101	else
    102		return &vsi->inner_vlan_ops;
    103}