drivers/net/wireless/ath/ath11k/hal_tx.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/ath/ath11k/hal_tx.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/ath/ath11k/hal_tx.c
Extension
.c
Size
4865 bytes
Lines
161
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
 * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
 * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
 */

#include "hal_desc.h"
#include "hal.h"
#include "hal_tx.h"
#include "hif.h"

#define DSCP_TID_MAP_TBL_ENTRY_SIZE 64

/* dscp_tid_map - Default DSCP-TID mapping
 *
 * DSCP        TID
 * 000000      0
 * 001000      1
 * 010000      2
 * 011000      3
 * 100000      4
 * 101000      5
 * 110000      6
 * 111000      7
 */
static const u8 dscp_tid_map[DSCP_TID_MAP_TBL_ENTRY_SIZE] = {
	0, 0, 0, 0, 0, 0, 0, 0,
	1, 1, 1, 1, 1, 1, 1, 1,
	2, 2, 2, 2, 2, 2, 2, 2,
	3, 3, 3, 3, 3, 3, 3, 3,
	4, 4, 4, 4, 4, 4, 4, 4,
	5, 5, 5, 5, 5, 5, 5, 5,
	6, 6, 6, 6, 6, 6, 6, 6,
	7, 7, 7, 7, 7, 7, 7, 7,
};

void ath11k_hal_tx_cmd_desc_setup(struct ath11k_base *ab, void *cmd,
				  struct hal_tx_info *ti)
{
	struct hal_tcl_data_cmd *tcl_cmd = cmd;

	tcl_cmd->buf_addr_info.info0 =
		FIELD_PREP(BUFFER_ADDR_INFO0_ADDR, ti->paddr);
	tcl_cmd->buf_addr_info.info1 =
		FIELD_PREP(BUFFER_ADDR_INFO1_ADDR,
			   ((uint64_t)ti->paddr >> HAL_ADDR_MSB_REG_SHIFT));
	tcl_cmd->buf_addr_info.info1 |=
		FIELD_PREP(BUFFER_ADDR_INFO1_RET_BUF_MGR, ti->rbm_id) |
		FIELD_PREP(BUFFER_ADDR_INFO1_SW_COOKIE, ti->desc_id);

	tcl_cmd->info0 =
		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_DESC_TYPE, ti->type) |
		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_ENCAP_TYPE, ti->encap_type) |
		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_ENCRYPT_TYPE,
			   ti->encrypt_type) |
		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_SEARCH_TYPE,
			   ti->search_type) |
		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_ADDR_EN,
			   ti->addr_search_flags) |
		FIELD_PREP(HAL_TCL_DATA_CMD_INFO0_CMD_NUM,
			   ti->meta_data_flags);

	tcl_cmd->info1 = ti->flags0 |
		FIELD_PREP(HAL_TCL_DATA_CMD_INFO1_DATA_LEN, ti->data_len) |
		FIELD_PREP(HAL_TCL_DATA_CMD_INFO1_PKT_OFFSET, ti->pkt_offset);

	tcl_cmd->info2 = ti->flags1 |
		FIELD_PREP(HAL_TCL_DATA_CMD_INFO2_TID, ti->tid) |
		FIELD_PREP(HAL_TCL_DATA_CMD_INFO2_LMAC_ID, ti->lmac_id);

	tcl_cmd->info3 = FIELD_PREP(HAL_TCL_DATA_CMD_INFO3_DSCP_TID_TABLE_IDX,
				    ti->dscp_tid_tbl_idx) |
			 FIELD_PREP(HAL_TCL_DATA_CMD_INFO3_SEARCH_INDEX,
				    ti->bss_ast_idx) |
			 FIELD_PREP(HAL_TCL_DATA_CMD_INFO3_CACHE_SET_NUM,
				    ti->bss_ast_hash);
	tcl_cmd->info4 = 0;

	if (ti->enable_mesh)
		ab->hw_params.hw_ops->tx_mesh_enable(ab, tcl_cmd);
}

void ath11k_hal_tx_set_dscp_tid_map(struct ath11k_base *ab, int id)
{
	u32 ctrl_reg_val;
	u32 addr;
	u8 hw_map_val[HAL_DSCP_TID_TBL_SIZE];
	int i;
	u32 value;
	int cnt = 0;

Annotation

Implementation Notes