1 // SPDX-License-Identifier: BSD-3-Clause-Clear
2 /*
3  * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
4  * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
5  */
6 
7 #include "hal_desc.h"
8 #include "hal.h"
9 #include "hal_tx.h"
10 #include "hif.h"
11 
12 #define DSCP_TID_MAP_TBL_ENTRY_SIZE 64
13 
14 /* dscp_tid_map - Default DSCP-TID mapping
15  *
16  * DSCP        TID
17  * 000000      0
18  * 001000      1
19  * 010000      2
20  * 011000      3
21  * 100000      4
22  * 101000      5
23  * 110000      6
24  * 111000      7
25  */
26 static const u8 dscp_tid_map[DSCP_TID_MAP_TBL_ENTRY_SIZE] = {
27 	0, 0, 0, 0, 0, 0, 0, 0,
28 	1, 1, 1, 1, 1, 1, 1, 1,
29 	2, 2, 2, 2, 2, 2, 2, 2,
30 	3, 3, 3, 3, 3, 3, 3, 3,
31 	4, 4, 4, 4, 4, 4, 4, 4,
32 	5, 5, 5, 5, 5, 5, 5, 5,
33 	6, 6, 6, 6, 6, 6, 6, 6,
34 	7, 7, 7, 7, 7, 7, 7, 7,
35 };
36 
37 void ath11k_hal_tx_cmd_desc_setup(struct ath11k_base *ab, void *cmd,
38 				  struct hal_tx_info *ti)
39 {
40 	struct hal_tcl_data_cmd *tcl_cmd = (struct hal_tcl_data_cmd *)cmd;
41 
42 	tcl_cmd->buf_addr_info.info0 =
43 		FIELD_PREP(BUFFER_ADDR_INFO0_ADDR, ti->paddr);
44 	tcl_cmd->buf_addr_info.info1 =
45 		FIELD_PREP(BUFFER_ADDR_INFO1_ADDR,
46 			   ((uint64_t)ti->paddr >> HAL_ADDR_MSB_REG_SHIFT));
47 	tcl_cmd->buf_addr_info.info1 |=
48 		FIELD_PREP(BUFFER_ADDR_INFO1_RET_BUF_MGR, ti->rbm_id) |
49 		FIELD_PREP(BUFFER_ADDR_INFO1_SW_COOKIE, ti->desc_id);
50 
51 	tcl_cmd->info0 =
52 		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_DESC_TYPE, ti->type) |
53 		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_ENCAP_TYPE, ti->encap_type) |
54 		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_ENCRYPT_TYPE,
55 			   ti->encrypt_type) |
56 		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_SEARCH_TYPE,
57 			   ti->search_type) |
58 		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_ADDR_EN,
59 			   ti->addr_search_flags) |
60 		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_CMD_NUM,
61 			   ti->meta_data_flags);
62 
63 	tcl_cmd->info1 = ti->flags0 |
64 		FIELD_PREP(HAL_TCL_DATA_CMD_INFO1_DATA_LEN, ti->data_len) |
65 		FIELD_PREP(HAL_TCL_DATA_CMD_INFO1_PKT_OFFSET, ti->pkt_offset);
66 
67 	tcl_cmd->info2 = ti->flags1 |
68 		FIELD_PREP(HAL_TCL_DATA_CMD_INFO2_TID, ti->tid) |
69 		FIELD_PREP(HAL_TCL_DATA_CMD_INFO2_LMAC_ID, ti->lmac_id);
70 
71 	tcl_cmd->info3 = FIELD_PREP(HAL_TCL_DATA_CMD_INFO3_DSCP_TID_TABLE_IDX,
72 				    ti->dscp_tid_tbl_idx) |
73 			 FIELD_PREP(HAL_TCL_DATA_CMD_INFO3_SEARCH_INDEX,
74 				    ti->bss_ast_idx) |
75 			 FIELD_PREP(HAL_TCL_DATA_CMD_INFO3_CACHE_SET_NUM,
76 				    ti->bss_ast_hash);
77 	tcl_cmd->info4 = 0;
78 
79 	if (ti->enable_mesh)
80 		ab->hw_params.hw_ops->tx_mesh_enable(ab, tcl_cmd);
81 }
82 
83 void ath11k_hal_tx_set_dscp_tid_map(struct ath11k_base *ab, int id)
84 {
85 	u32 ctrl_reg_val;
86 	u32 addr;
87 	u8 hw_map_val[HAL_DSCP_TID_TBL_SIZE];
88 	int i;
89 	u32 value;
90 	int cnt = 0;
91 
92 	ctrl_reg_val = ath11k_hif_read32(ab, HAL_SEQ_WCSS_UMAC_TCL_REG +
93 					 HAL_TCL1_RING_CMN_CTRL_REG);
94 	/* Enable read/write access */
95 	ctrl_reg_val |= HAL_TCL1_RING_CMN_CTRL_DSCP_TID_MAP_PROG_EN;
96 	ath11k_hif_write32(ab, HAL_SEQ_WCSS_UMAC_TCL_REG +
97 			   HAL_TCL1_RING_CMN_CTRL_REG, ctrl_reg_val);
98 
99 	addr = HAL_SEQ_WCSS_UMAC_TCL_REG + HAL_TCL1_RING_DSCP_TID_MAP +
100 	       (4 * id * (HAL_DSCP_TID_TBL_SIZE / 4));
101 
102 	/* Configure each DSCP-TID mapping in three bits there by configure
103 	 * three bytes in an iteration.
104 	 */
105 	for (i = 0; i < DSCP_TID_MAP_TBL_ENTRY_SIZE; i += 8) {
106 		value = FIELD_PREP(HAL_TCL1_RING_FIELD_DSCP_TID_MAP0,
107 				   dscp_tid_map[i]) |
108 			FIELD_PREP(HAL_TCL1_RING_FIELD_DSCP_TID_MAP1,
109 				   dscp_tid_map[i + 1]) |
110 			FIELD_PREP(HAL_TCL1_RING_FIELD_DSCP_TID_MAP2,
111 				   dscp_tid_map[i + 2]) |
112 			FIELD_PREP(HAL_TCL1_RING_FIELD_DSCP_TID_MAP3,
113 				   dscp_tid_map[i + 3]) |
114 			FIELD_PREP(HAL_TCL1_RING_FIELD_DSCP_TID_MAP4,
115 				   dscp_tid_map[i + 4]) |
116 			FIELD_PREP(HAL_TCL1_RING_FIELD_DSCP_TID_MAP5,
117 				   dscp_tid_map[i + 5]) |
118 			FIELD_PREP(HAL_TCL1_RING_FIELD_DSCP_TID_MAP6,
119 				   dscp_tid_map[i + 6]) |
120 			FIELD_PREP(HAL_TCL1_RING_FIELD_DSCP_TID_MAP7,
121 				   dscp_tid_map[i + 7]);
122 		memcpy(&hw_map_val[cnt], (u8 *)&value, 3);
123 		cnt += 3;
124 	}
125 
126 	for (i = 0; i < HAL_DSCP_TID_TBL_SIZE; i += 4) {
127 		ath11k_hif_write32(ab, addr, *(u32 *)&hw_map_val[i]);
128 		addr += 4;
129 	}
130 
131 	/* Disable read/write access */
132 	ctrl_reg_val = ath11k_hif_read32(ab, HAL_SEQ_WCSS_UMAC_TCL_REG +
133 					 HAL_TCL1_RING_CMN_CTRL_REG);
134 	ctrl_reg_val &= ~HAL_TCL1_RING_CMN_CTRL_DSCP_TID_MAP_PROG_EN;
135 	ath11k_hif_write32(ab, HAL_SEQ_WCSS_UMAC_TCL_REG +
136 			   HAL_TCL1_RING_CMN_CTRL_REG,
137 			   ctrl_reg_val);
138 }
139 
140 void ath11k_hal_tx_init_data_ring(struct ath11k_base *ab, struct hal_srng *srng)
141 {
142 	struct hal_srng_params params;
143 	struct hal_tlv_hdr *tlv;
144 	int i, entry_size;
145 	u8 *desc;
146 
147 	memset(&params, 0, sizeof(params));
148 
149 	entry_size = ath11k_hal_srng_get_entrysize(ab, HAL_TCL_DATA);
150 	ath11k_hal_srng_get_params(ab, srng, &params);
151 	desc = (u8 *)params.ring_base_vaddr;
152 
153 	for (i = 0; i < params.num_entries; i++) {
154 		tlv = (struct hal_tlv_hdr *)desc;
155 		tlv->tl = FIELD_PREP(HAL_TLV_HDR_TAG, HAL_TCL_DATA_CMD) |
156 			  FIELD_PREP(HAL_TLV_HDR_LEN,
157 				     sizeof(struct hal_tcl_data_cmd));
158 		desc += entry_size;
159 	}
160 }
161