1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(C) 2019 Marvell International Ltd.
10 #include <rte_tm_driver.h>
12 #define NIX_TM_DEFAULT_TREE BIT_ULL(0)
13 #define NIX_TM_COMMITTED BIT_ULL(1)
14 #define NIX_TM_TL1_NO_SP BIT_ULL(3)
18 void otx2_nix_tm_conf_init(struct rte_eth_dev *eth_dev);
19 int otx2_nix_tm_init_default(struct rte_eth_dev *eth_dev);
20 int otx2_nix_tm_fini(struct rte_eth_dev *eth_dev);
21 int otx2_nix_tm_get_leaf_data(struct otx2_eth_dev *dev, uint16_t sq,
22 uint32_t *rr_quantum, uint16_t *smq);
23 int otx2_nix_sq_flush_pre(void *_txq, bool dev_started);
24 int otx2_nix_sq_flush_post(void *_txq);
25 int otx2_nix_sq_enable(void *_txq);
26 int otx2_nix_get_link(struct otx2_eth_dev *dev);
27 int otx2_nix_sq_sqb_aura_fc(void *_txq, bool enable);
29 struct otx2_nix_tm_node {
30 TAILQ_ENTRY(otx2_nix_tm_node) node;
40 uint32_t parent_hw_id;
42 #define NIX_TM_NODE_HWRES BIT_ULL(0)
43 #define NIX_TM_NODE_ENABLED BIT_ULL(1)
44 #define NIX_TM_NODE_USER BIT_ULL(2)
45 /* Shaper algorithm for RED state @NIX_REDALG_E */
48 struct otx2_nix_tm_node *parent;
49 struct rte_tm_node_params params;
56 struct otx2_nix_tm_shaper_profile {
57 TAILQ_ENTRY(otx2_nix_tm_shaper_profile) shaper;
58 uint32_t shaper_profile_id;
59 uint32_t reference_count;
60 struct rte_tm_shaper_params params; /* Rate in bits/sec */
63 struct shaper_params {
64 uint64_t burst_exponent;
65 uint64_t burst_mantissa;
73 TAILQ_HEAD(otx2_nix_tm_node_list, otx2_nix_tm_node);
74 TAILQ_HEAD(otx2_nix_tm_shaper_profile_list, otx2_nix_tm_shaper_profile);
76 #define MAX_SCHED_WEIGHT ((uint8_t)~0)
77 #define NIX_TM_RR_QUANTUM_MAX (BIT_ULL(24) - 1)
78 #define NIX_TM_WEIGHT_TO_RR_QUANTUM(__weight) \
79 ((((__weight) & MAX_SCHED_WEIGHT) * \
80 NIX_TM_RR_QUANTUM_MAX) / MAX_SCHED_WEIGHT)
82 /* DEFAULT_RR_WEIGHT * NIX_TM_RR_QUANTUM_MAX / MAX_SCHED_WEIGHT */
83 /* = NIX_MAX_HW_MTU */
84 #define DEFAULT_RR_WEIGHT 71
86 /** NIX rate limits */
87 #define MAX_RATE_DIV_EXP 12
88 #define MAX_RATE_EXPONENT 0xf
89 #define MAX_RATE_MANTISSA 0xff
91 #define NIX_SHAPER_RATE_CONST ((uint64_t)2E6)
93 /* NIX rate calculation in Bits/Sec
94 * PIR_ADD = ((256 + NIX_*_PIR[RATE_MANTISSA])
95 * << NIX_*_PIR[RATE_EXPONENT]) / 256
96 * PIR = (2E6 * PIR_ADD / (1 << NIX_*_PIR[RATE_DIVIDER_EXPONENT]))
98 * CIR_ADD = ((256 + NIX_*_CIR[RATE_MANTISSA])
99 * << NIX_*_CIR[RATE_EXPONENT]) / 256
100 * CIR = (2E6 * CIR_ADD / (CCLK_TICKS << NIX_*_CIR[RATE_DIVIDER_EXPONENT]))
102 #define SHAPER_RATE(exponent, mantissa, div_exp) \
103 ((NIX_SHAPER_RATE_CONST * ((256 + (mantissa)) << (exponent)))\
104 / (((1ull << (div_exp)) * 256)))
106 /* 96xx rate limits in Bits/Sec */
107 #define MIN_SHAPER_RATE \
108 SHAPER_RATE(0, 0, MAX_RATE_DIV_EXP)
110 #define MAX_SHAPER_RATE \
111 SHAPER_RATE(MAX_RATE_EXPONENT, MAX_RATE_MANTISSA, 0)
113 /** TM Shaper - low level operations */
115 /** NIX burst limits */
116 #define MAX_BURST_EXPONENT 0xf
117 #define MAX_BURST_MANTISSA 0xff
119 /* NIX burst calculation
120 * PIR_BURST = ((256 + NIX_*_PIR[BURST_MANTISSA])
121 * << (NIX_*_PIR[BURST_EXPONENT] + 1))
124 * CIR_BURST = ((256 + NIX_*_CIR[BURST_MANTISSA])
125 * << (NIX_*_CIR[BURST_EXPONENT] + 1))
128 #define SHAPER_BURST(exponent, mantissa) \
129 (((256 + (mantissa)) << ((exponent) + 1)) / 256)
131 /** Shaper burst limits */
132 #define MIN_SHAPER_BURST \
135 #define MAX_SHAPER_BURST \
136 SHAPER_BURST(MAX_BURST_EXPONENT,\
139 /* Default TL1 priority and Quantum from AF */
140 #define TXSCH_TL1_DFLT_RR_QTM ((1 << 24) - 1)
141 #define TXSCH_TL1_DFLT_RR_PRIO 1
143 #define TXSCH_TLX_SP_PRIO_MAX 10
145 static inline const char *
146 nix_hwlvl2str(uint32_t hw_lvl)
149 case NIX_TXSCH_LVL_MDQ:
151 case NIX_TXSCH_LVL_TL4:
153 case NIX_TXSCH_LVL_TL3:
155 case NIX_TXSCH_LVL_TL2:
157 case NIX_TXSCH_LVL_TL1:
166 #endif /* __OTX2_TM_H__ */