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

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

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/ath/ath11k/debugfs_htt_stats.c
Extension
.c
Size
178680 bytes
Lines
4905
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: operation-table or driver-model contract
Status
pattern 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

static const struct file_operations fops_htt_stats_type = {
	.read = ath11k_read_htt_stats_type,
	.write = ath11k_write_htt_stats_type,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

static int ath11k_prep_htt_stats_cfg_params(struct ath11k *ar, u8 type,
					    const u8 *mac_addr,
					    struct htt_ext_stats_cfg_params *cfg_params)
{
	if (!cfg_params)
		return -EINVAL;

	switch (type) {
	case ATH11K_DBG_HTT_EXT_STATS_PDEV_TX_HWQ:
	case ATH11K_DBG_HTT_EXT_STATS_TX_MU_HWQ:
		cfg_params->cfg0 = HTT_STAT_DEFAULT_CFG0_ALL_HWQS;
		break;
	case ATH11K_DBG_HTT_EXT_STATS_PDEV_TX_SCHED:
		cfg_params->cfg0 = HTT_STAT_DEFAULT_CFG0_ALL_TXQS;
		break;
	case ATH11K_DBG_HTT_EXT_STATS_TQM_CMDQ:
		cfg_params->cfg0 = HTT_STAT_DEFAULT_CFG0_ALL_CMDQS;
		break;
	case ATH11K_DBG_HTT_EXT_STATS_PEER_INFO:
		cfg_params->cfg0 = HTT_STAT_PEER_INFO_MAC_ADDR;
		cfg_params->cfg0 |= FIELD_PREP(GENMASK(15, 1),
					HTT_PEER_STATS_REQ_MODE_FLUSH_TQM);
		cfg_params->cfg1 = HTT_STAT_DEFAULT_PEER_REQ_TYPE;
		cfg_params->cfg2 |= FIELD_PREP(GENMASK(7, 0), mac_addr[0]);
		cfg_params->cfg2 |= FIELD_PREP(GENMASK(15, 8), mac_addr[1]);
		cfg_params->cfg2 |= FIELD_PREP(GENMASK(23, 16), mac_addr[2]);
		cfg_params->cfg2 |= FIELD_PREP(GENMASK(31, 24), mac_addr[3]);
		cfg_params->cfg3 |= FIELD_PREP(GENMASK(7, 0), mac_addr[4]);
		cfg_params->cfg3 |= FIELD_PREP(GENMASK(15, 8), mac_addr[5]);
		break;
	case ATH11K_DBG_HTT_EXT_STATS_RING_IF_INFO:
	case ATH11K_DBG_HTT_EXT_STATS_SRNG_INFO:
		cfg_params->cfg0 = HTT_STAT_DEFAULT_CFG0_ALL_RINGS;
		break;
	case ATH11K_DBG_HTT_EXT_STATS_ACTIVE_PEERS_LIST:
		cfg_params->cfg0 = HTT_STAT_DEFAULT_CFG0_ACTIVE_PEERS;
		break;
	case ATH11K_DBG_HTT_EXT_STATS_PDEV_CCA_STATS:
		cfg_params->cfg0 = HTT_STAT_DEFAULT_CFG0_CCA_CUMULATIVE;
		break;
	case ATH11K_DBG_HTT_EXT_STATS_TX_SOUNDING_INFO:
		cfg_params->cfg0 = HTT_STAT_DEFAULT_CFG0_ACTIVE_VDEVS;
		break;
	case ATH11K_DBG_HTT_EXT_STATS_PEER_CTRL_PATH_TXRX_STATS:
		cfg_params->cfg0 = HTT_STAT_PEER_INFO_MAC_ADDR;
		cfg_params->cfg1 |= FIELD_PREP(GENMASK(7, 0), mac_addr[0]);
		cfg_params->cfg1 |= FIELD_PREP(GENMASK(15, 8), mac_addr[1]);
		cfg_params->cfg1 |= FIELD_PREP(GENMASK(23, 16), mac_addr[2]);
		cfg_params->cfg1 |= FIELD_PREP(GENMASK(31, 24), mac_addr[3]);
		cfg_params->cfg2 |= FIELD_PREP(GENMASK(7, 0), mac_addr[4]);
		cfg_params->cfg2 |= FIELD_PREP(GENMASK(15, 8), mac_addr[5]);
		break;
	default:
		break;
	}

	return 0;
}

int ath11k_debugfs_htt_stats_req(struct ath11k *ar)
{
	struct debug_htt_stats_req *stats_req = ar->debug.htt_stats.stats_req;
	u8 type = stats_req->type;
	u64 cookie = 0;
	int ret, pdev_id = ar->pdev->pdev_id;
	struct htt_ext_stats_cfg_params cfg_params = {};

	init_completion(&stats_req->cmpln);

	stats_req->done = false;
	stats_req->pdev_id = pdev_id;

	cookie = FIELD_PREP(HTT_STATS_COOKIE_MSB, HTT_STATS_MAGIC_VALUE) |
		 FIELD_PREP(HTT_STATS_COOKIE_LSB, pdev_id);

	ret = ath11k_prep_htt_stats_cfg_params(ar, type, stats_req->peer_addr,
					       &cfg_params);
	if (ret) {
		ath11k_warn(ar->ab, "failed to set htt stats cfg params: %d\n", ret);
		return ret;
	}

Annotation

Implementation Notes