1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2019, Intel Corporation. */
4 #ifndef _ICE_DCB_LIB_H_
5 #define _ICE_DCB_LIB_H_
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 */
17 void ice_dcb_rebuild(struct ice_pf *pf);
18 u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg *dcbcfg);
19 u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg *dcbcfg);
20 void ice_vsi_set_dcb_tc_cfg(struct ice_vsi *vsi);
21 bool ice_is_pfc_causing_hung_q(struct ice_pf *pf, unsigned int txqueue);
22 u8 ice_dcb_get_tc(struct ice_vsi *vsi, int queue_index);
24 ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked);
25 int ice_dcb_bwchk(struct ice_pf *pf, struct ice_dcbx_cfg *dcbcfg);
26 void ice_pf_dcb_recfg(struct ice_pf *pf);
27 void ice_vsi_cfg_dcb_rings(struct ice_vsi *vsi);
28 int ice_init_pf_dcb(struct ice_pf *pf, bool locked);
29 void ice_update_dcb_stats(struct ice_pf *pf);
31 ice_tx_prepare_vlan_flags_dcb(struct ice_ring *tx_ring,
32 struct ice_tx_buf *first);
34 ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf,
35 struct ice_rq_event_info *event);
36 void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc);
40 * @low: start of queue range for a TC i.e. offset of TC
41 * @high: start of queue for next TC
42 * @tx_q: hung_queue/tx_queue
44 * finds if queue 'tx_q' falls between the two offsets of any given TC
46 static inline bool ice_find_q_in_range(u16 low, u16 high, unsigned int tx_q)
48 return (tx_q >= low) && (tx_q < high);
52 ice_set_cgd_num(struct ice_tlan_ctx *tlan_ctx, struct ice_ring *ring)
54 tlan_ctx->cgd_num = ring->dcb_tc;
57 static inline bool ice_is_dcb_active(struct ice_pf *pf)
59 return (test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags) ||
60 test_bit(ICE_FLAG_DCB_ENA, pf->flags));
63 static inline void ice_dcb_rebuild(struct ice_pf *pf) { }
65 static inline u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg __always_unused *dcbcfg)
67 return ICE_DFLT_TRAFFIC_CLASS;
70 static inline u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg __always_unused *dcbcfg)
76 ice_dcb_get_tc(struct ice_vsi __always_unused *vsi,
77 int __always_unused queue_index)
83 ice_init_pf_dcb(struct ice_pf *pf, bool __always_unused locked)
85 dev_dbg(ice_pf_to_dev(pf), "DCB not supported\n");
90 ice_pf_dcb_cfg(struct ice_pf __always_unused *pf,
91 struct ice_dcbx_cfg __always_unused *new_cfg,
92 bool __always_unused locked)
98 ice_tx_prepare_vlan_flags_dcb(struct ice_ring __always_unused *tx_ring,
99 struct ice_tx_buf __always_unused *first)
104 static inline bool ice_is_dcb_active(struct ice_pf __always_unused *pf)
110 ice_is_pfc_causing_hung_q(struct ice_pf __always_unused *pf,
111 unsigned int __always_unused txqueue)
116 static inline void ice_pf_dcb_recfg(struct ice_pf *pf) { }
117 static inline void ice_vsi_cfg_dcb_rings(struct ice_vsi *vsi) { }
118 static inline void ice_update_dcb_stats(struct ice_pf *pf) { }
120 ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf, struct ice_rq_event_info *event) { }
121 static inline void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc) { }
122 static inline void ice_set_cgd_num(struct ice_tlan_ctx *tlan_ctx, struct ice_ring *ring) { }
123 #endif /* CONFIG_DCB */
124 #endif /* _ICE_DCB_LIB_H_ */