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1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2018, Intel Corporation. */
3 
4 #ifndef _ICE_SCHED_H_
5 #define _ICE_SCHED_H_
6 
7 #include "ice_common.h"
8 
9 #define ICE_QGRP_LAYER_OFFSET	2
10 #define ICE_VSI_LAYER_OFFSET	4
11 #define ICE_AGG_LAYER_OFFSET	6
12 #define ICE_SCHED_INVAL_LAYER_NUM	0xFF
13 /* Burst size is a 12 bits register that is configured while creating the RL
14  * profile(s). MSB is a granularity bit and tells the granularity type
15  * 0 - LSB bits are in 64 bytes granularity
16  * 1 - LSB bits are in 1K bytes granularity
17  */
18 #define ICE_64_BYTE_GRANULARITY			0
19 #define ICE_KBYTE_GRANULARITY			BIT(11)
20 #define ICE_MIN_BURST_SIZE_ALLOWED		64 /* In Bytes */
21 #define ICE_MAX_BURST_SIZE_ALLOWED \
22 	((BIT(11) - 1) * 1024) /* In Bytes */
23 #define ICE_MAX_BURST_SIZE_64_BYTE_GRANULARITY \
24 	((BIT(11) - 1) * 64) /* In Bytes */
25 #define ICE_MAX_BURST_SIZE_KBYTE_GRANULARITY	ICE_MAX_BURST_SIZE_ALLOWED
26 
27 #define ICE_RL_PROF_ACCURACY_BYTES 128
28 #define ICE_RL_PROF_MULTIPLIER 10000
29 #define ICE_RL_PROF_TS_MULTIPLIER 32
30 #define ICE_RL_PROF_FRACTION 512
31 
32 #define ICE_PSM_CLK_367MHZ_IN_HZ 367647059
33 #define ICE_PSM_CLK_416MHZ_IN_HZ 416666667
34 #define ICE_PSM_CLK_446MHZ_IN_HZ 446428571
35 #define ICE_PSM_CLK_390MHZ_IN_HZ 390625000
36 
37 /* BW rate limit profile parameters list entry along
38  * with bandwidth maintained per layer in port info
39  */
40 struct ice_aqc_rl_profile_info {
41 	struct ice_aqc_rl_profile_elem profile;
42 	struct list_head list_entry;
43 	u32 bw;			/* requested */
44 	u16 prof_id_ref;	/* profile ID to node association ref count */
45 };
46 
47 struct ice_sched_agg_vsi_info {
48 	struct list_head list_entry;
49 	DECLARE_BITMAP(tc_bitmap, ICE_MAX_TRAFFIC_CLASS);
50 	u16 vsi_handle;
51 	/* save aggregator VSI TC bitmap */
52 	DECLARE_BITMAP(replay_tc_bitmap, ICE_MAX_TRAFFIC_CLASS);
53 };
54 
55 struct ice_sched_agg_info {
56 	struct list_head agg_vsi_list;
57 	struct list_head list_entry;
58 	DECLARE_BITMAP(tc_bitmap, ICE_MAX_TRAFFIC_CLASS);
59 	u32 agg_id;
60 	enum ice_agg_type agg_type;
61 	/* save aggregator TC bitmap */
62 	DECLARE_BITMAP(replay_tc_bitmap, ICE_MAX_TRAFFIC_CLASS);
63 };
64 
65 /* FW AQ command calls */
66 enum ice_status
67 ice_aq_query_sched_elems(struct ice_hw *hw, u16 elems_req,
68 			 struct ice_aqc_txsched_elem_data *buf, u16 buf_size,
69 			 u16 *elems_ret, struct ice_sq_cd *cd);
70 enum ice_status ice_sched_init_port(struct ice_port_info *pi);
71 enum ice_status ice_sched_query_res_alloc(struct ice_hw *hw);
72 void ice_sched_get_psm_clk_freq(struct ice_hw *hw);
73 
74 void ice_sched_clear_port(struct ice_port_info *pi);
75 void ice_sched_cleanup_all(struct ice_hw *hw);
76 void ice_sched_clear_agg(struct ice_hw *hw);
77 
78 struct ice_sched_node *
79 ice_sched_find_node_by_teid(struct ice_sched_node *start_node, u32 teid);
80 enum ice_status
81 ice_sched_add_node(struct ice_port_info *pi, u8 layer,
82 		   struct ice_aqc_txsched_elem_data *info);
83 void ice_free_sched_node(struct ice_port_info *pi, struct ice_sched_node *node);
84 struct ice_sched_node *ice_sched_get_tc_node(struct ice_port_info *pi, u8 tc);
85 struct ice_sched_node *
86 ice_sched_get_free_qparent(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
87 			   u8 owner);
88 enum ice_status
89 ice_sched_cfg_vsi(struct ice_port_info *pi, u16 vsi_handle, u8 tc, u16 maxqs,
90 		  u8 owner, bool enable);
91 enum ice_status ice_rm_vsi_lan_cfg(struct ice_port_info *pi, u16 vsi_handle);
92 enum ice_status ice_rm_vsi_rdma_cfg(struct ice_port_info *pi, u16 vsi_handle);
93 
94 /* Tx scheduler rate limiter functions */
95 enum ice_status
96 ice_cfg_agg(struct ice_port_info *pi, u32 agg_id,
97 	    enum ice_agg_type agg_type, u8 tc_bitmap);
98 enum ice_status
99 ice_move_vsi_to_agg(struct ice_port_info *pi, u32 agg_id, u16 vsi_handle,
100 		    u8 tc_bitmap);
101 enum ice_status
102 ice_cfg_q_bw_lmt(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
103 		 u16 q_handle, enum ice_rl_type rl_type, u32 bw);
104 enum ice_status
105 ice_cfg_q_bw_dflt_lmt(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
106 		      u16 q_handle, enum ice_rl_type rl_type);
107 enum ice_status ice_cfg_rl_burst_size(struct ice_hw *hw, u32 bytes);
108 void ice_sched_replay_agg_vsi_preinit(struct ice_hw *hw);
109 void ice_sched_replay_agg(struct ice_hw *hw);
110 enum ice_status ice_replay_vsi_agg(struct ice_hw *hw, u16 vsi_handle);
111 enum ice_status
112 ice_sched_replay_q_bw(struct ice_port_info *pi, struct ice_q_ctx *q_ctx);
113 #endif /* _ICE_SCHED_H_ */
114