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 | |
17 | void ice_dcb_rebuild(struct ice_pf *pf); |
18 | int ice_dcb_sw_dflt_cfg(struct ice_pf *pf, bool ets_willing, bool locked); |
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); |
23 | int |
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, bool locked); |
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); |
30 | void |
31 | ice_tx_prepare_vlan_flags_dcb(struct ice_tx_ring *tx_ring, |
32 | struct ice_tx_buf *first); |
33 | void |
34 | ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf, |
35 | struct ice_rq_event_info *event); |
36 | /** |
37 | * ice_find_q_in_range |
38 | * @low: start of queue range for a TC i.e. offset of TC |
39 | * @high: start of queue for next TC |
40 | * @tx_q: hung_queue/tx_queue |
41 | * |
42 | * finds if queue 'tx_q' falls between the two offsets of any given TC |
43 | */ |
44 | static inline bool ice_find_q_in_range(u16 low, u16 high, unsigned int tx_q) |
45 | { |
46 | return (tx_q >= low) && (tx_q < high); |
47 | } |
48 | |
49 | static inline void |
50 | ice_set_cgd_num(struct ice_tlan_ctx *tlan_ctx, u8 dcb_tc) |
51 | { |
52 | tlan_ctx->cgd_num = dcb_tc; |
53 | } |
54 | |
55 | static inline bool ice_is_dcb_active(struct ice_pf *pf) |
56 | { |
57 | return (test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags) || |
58 | test_bit(ICE_FLAG_DCB_ENA, pf->flags)); |
59 | } |
60 | |
61 | static inline u8 ice_get_pfc_mode(struct ice_pf *pf) |
62 | { |
63 | return pf->hw.port_info->qos_cfg.local_dcbx_cfg.pfc_mode; |
64 | } |
65 | |
66 | #else |
67 | static inline void ice_dcb_rebuild(struct ice_pf *pf) { } |
68 | |
69 | static inline void ice_vsi_set_dcb_tc_cfg(struct ice_vsi *vsi) |
70 | { |
71 | vsi->tc_cfg.ena_tc = ICE_DFLT_TRAFFIC_CLASS; |
72 | vsi->tc_cfg.numtc = 1; |
73 | } |
74 | |
75 | static inline u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg __always_unused *dcbcfg) |
76 | { |
77 | return ICE_DFLT_TRAFFIC_CLASS; |
78 | } |
79 | |
80 | static inline u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg __always_unused *dcbcfg) |
81 | { |
82 | return 1; |
83 | } |
84 | |
85 | static inline u8 |
86 | ice_dcb_get_tc(struct ice_vsi __always_unused *vsi, |
87 | int __always_unused queue_index) |
88 | { |
89 | return 0; |
90 | } |
91 | |
92 | static inline int |
93 | ice_init_pf_dcb(struct ice_pf *pf, bool __always_unused locked) |
94 | { |
95 | dev_dbg(ice_pf_to_dev(pf), "DCB not supported\n" ); |
96 | return -EOPNOTSUPP; |
97 | } |
98 | |
99 | static inline int |
100 | ice_pf_dcb_cfg(struct ice_pf __always_unused *pf, |
101 | struct ice_dcbx_cfg __always_unused *new_cfg, |
102 | bool __always_unused locked) |
103 | { |
104 | return -EOPNOTSUPP; |
105 | } |
106 | |
107 | static inline int |
108 | ice_tx_prepare_vlan_flags_dcb(struct ice_tx_ring __always_unused *tx_ring, |
109 | struct ice_tx_buf __always_unused *first) |
110 | { |
111 | return 0; |
112 | } |
113 | |
114 | static inline bool ice_is_dcb_active(struct ice_pf __always_unused *pf) |
115 | { |
116 | return false; |
117 | } |
118 | |
119 | static inline bool |
120 | ice_is_pfc_causing_hung_q(struct ice_pf __always_unused *pf, |
121 | unsigned int __always_unused txqueue) |
122 | { |
123 | return false; |
124 | } |
125 | |
126 | static inline u8 ice_get_pfc_mode(struct ice_pf *pf) |
127 | { |
128 | return 0; |
129 | } |
130 | |
131 | static inline void ice_pf_dcb_recfg(struct ice_pf *pf, bool locked) { } |
132 | static inline void ice_vsi_cfg_dcb_rings(struct ice_vsi *vsi) { } |
133 | static inline void ice_update_dcb_stats(struct ice_pf *pf) { } |
134 | static inline void |
135 | ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf, struct ice_rq_event_info *event) { } |
136 | static inline void ice_set_cgd_num(struct ice_tlan_ctx *tlan_ctx, u8 dcb_tc) { } |
137 | #endif /* CONFIG_DCB */ |
138 | #endif /* _ICE_DCB_LIB_H_ */ |
139 | |