LXR linux/drivers/net/ethernet/intel/ice/ice_dcb

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* Copyright (c) 2019, Intel Corporation. */
   3
   4#ifndef _ICE_DCB_LIB_H_
   5#define _ICE_DCB_LIB_H_
   6
   7#include "ice.h"
   8#include "ice_base.h"
   9#include "ice_lib.h"
  10
  11#ifdef CONFIG_DCB
  12#define ICE_TC_MAX_BW           100 /* Default Max BW percentage */
  13#define ICE_DCB_HW_CHG_RST      0 /* DCB configuration changed with reset */
  14#define ICE_DCB_NO_HW_CHG       1 /* DCB configuration did not change */
  15#define ICE_DCB_HW_CHG          2 /* DCB configuration changed, no reset */
  16
  17void ice_dcb_rebuild(struct ice_pf *pf);
  18u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg *dcbcfg);
  19u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg *dcbcfg);
  20u8 ice_dcb_get_tc(struct ice_vsi *vsi, int queue_index);
  21int
  22ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked);
  23int ice_dcb_bwchk(struct ice_pf *pf, struct ice_dcbx_cfg *dcbcfg);
  24void ice_pf_dcb_recfg(struct ice_pf *pf);
  25void ice_vsi_cfg_dcb_rings(struct ice_vsi *vsi);
  26int ice_init_pf_dcb(struct ice_pf *pf, bool locked);
  27void ice_update_dcb_stats(struct ice_pf *pf);
  28int
  29ice_tx_prepare_vlan_flags_dcb(struct ice_ring *tx_ring,
  30                              struct ice_tx_buf *first);
  31void
  32ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf,
  33                                    struct ice_rq_event_info *event);
  34void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc);
  35static inline void
  36ice_set_cgd_num(struct ice_tlan_ctx *tlan_ctx, struct ice_ring *ring)
  37{
  38        tlan_ctx->cgd_num = ring->dcb_tc;
  39}
  40#else
  41#define ice_dcb_rebuild(pf) do {} while (0)
  42
  43static inline u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg __always_unused *dcbcfg)
  44{
  45        return ICE_DFLT_TRAFFIC_CLASS;
  46}
  47
  48static inline u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg __always_unused *dcbcfg)
  49{
  50        return 1;
  51}
  52
  53static inline u8
  54ice_dcb_get_tc(struct ice_vsi __always_unused *vsi,
  55               int __always_unused queue_index)
  56{
  57        return 0;
  58}
  59
  60static inline int
  61ice_init_pf_dcb(struct ice_pf *pf, bool __always_unused locked)
  62{
  63        dev_dbg(ice_pf_to_dev(pf), "DCB not supported\n");
  64        return -EOPNOTSUPP;
  65}
  66
  67static inline int
  68ice_pf_dcb_cfg(struct ice_pf __always_unused *pf,
  69               struct ice_dcbx_cfg __always_unused *new_cfg,
  70               bool __always_unused locked)
  71{
  72        return -EOPNOTSUPP;
  73}
  74
  75static inline int
  76ice_tx_prepare_vlan_flags_dcb(struct ice_ring __always_unused *tx_ring,
  77                              struct ice_tx_buf __always_unused *first)
  78{
  79        return 0;
  80}
  81
  82#define ice_update_dcb_stats(pf) do {} while (0)
  83#define ice_pf_dcb_recfg(pf) do {} while (0)
  84#define ice_vsi_cfg_dcb_rings(vsi) do {} while (0)
  85#define ice_dcb_process_lldp_set_mib_change(pf, event) do {} while (0)
  86#define ice_set_cgd_num(tlan_ctx, ring) do {} while (0)
  87#define ice_vsi_cfg_netdev_tc(vsi, ena_tc) do {} while (0)
  88#endif /* CONFIG_DCB */
  89#endif /* _ICE_DCB_LIB_H_ */
  90