drivers/net/wireless/intel/iwlwifi/mvm/rs.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/intel/iwlwifi/mvm/rs.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/intel/iwlwifi/mvm/rs.c
Extension
.c
Size
121892 bytes
Lines
4181
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 rs_sta_dbgfs_scale_table_ops = {
	.write = rs_sta_dbgfs_scale_table_write,
	.read = rs_sta_dbgfs_scale_table_read,
	.open = simple_open,
	.llseek = default_llseek,
};
static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
			char __user *user_buf, size_t count, loff_t *ppos)
{
	char *buff;
	int desc = 0;
	int i, j;
	ssize_t ret;
	struct iwl_scale_tbl_info *tbl;
	struct rs_rate *rate;
	struct iwl_lq_sta *lq_sta = file->private_data;

	buff = kmalloc(1024, GFP_KERNEL);
	if (!buff)
		return -ENOMEM;

	for (i = 0; i < LQ_SIZE; i++) {
		tbl = &(lq_sta->lq_info[i]);
		rate = &tbl->rate;
		desc += sprintf(buff+desc,
				"%s type=%d SGI=%d BW=%s DUP=0\n"
				"index=%d\n",
				lq_sta->active_tbl == i ? "*" : "x",
				rate->type,
				rate->sgi,
				is_ht20(rate) ? "20MHz" :
				is_ht40(rate) ? "40MHz" :
				is_ht80(rate) ? "80MHz" :
				is_ht160(rate) ? "160MHz" : "ERR",
				rate->index);
		for (j = 0; j < IWL_RATE_COUNT; j++) {
			desc += sprintf(buff+desc,
				"counter=%d success=%d %%=%d\n",
				tbl->win[j].counter,
				tbl->win[j].success_counter,
				tbl->win[j].success_ratio);
		}
	}
	ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
	kfree(buff);
	return ret;
}

static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
	.read = rs_sta_dbgfs_stats_table_read,
	.open = simple_open,
	.llseek = default_llseek,
};

static ssize_t rs_sta_dbgfs_drv_tx_stats_read(struct file *file,
					      char __user *user_buf,
					      size_t count, loff_t *ppos)
{
	static const char * const column_name[] = {
		[RS_COLUMN_LEGACY_ANT_A] = "LEGACY_ANT_A",
		[RS_COLUMN_LEGACY_ANT_B] = "LEGACY_ANT_B",
		[RS_COLUMN_SISO_ANT_A] = "SISO_ANT_A",
		[RS_COLUMN_SISO_ANT_B] = "SISO_ANT_B",
		[RS_COLUMN_SISO_ANT_A_SGI] = "SISO_ANT_A_SGI",
		[RS_COLUMN_SISO_ANT_B_SGI] = "SISO_ANT_B_SGI",
		[RS_COLUMN_MIMO2] = "MIMO2",
		[RS_COLUMN_MIMO2_SGI] = "MIMO2_SGI",
	};

	static const char * const rate_name[] = {
		[IWL_RATE_1M_INDEX] = "1M",
		[IWL_RATE_2M_INDEX] = "2M",
		[IWL_RATE_5M_INDEX] = "5.5M",
		[IWL_RATE_11M_INDEX] = "11M",
		[IWL_RATE_6M_INDEX] = "6M|MCS0",
		[IWL_RATE_9M_INDEX] = "9M",
		[IWL_RATE_12M_INDEX] = "12M|MCS1",
		[IWL_RATE_18M_INDEX] = "18M|MCS2",
		[IWL_RATE_24M_INDEX] = "24M|MCS3",
		[IWL_RATE_36M_INDEX] = "36M|MCS4",
		[IWL_RATE_48M_INDEX] = "48M|MCS5",
		[IWL_RATE_54M_INDEX] = "54M|MCS6",
		[IWL_RATE_MCS_7_INDEX] = "MCS7",
		[IWL_RATE_MCS_8_INDEX] = "MCS8",
		[IWL_RATE_MCS_9_INDEX] = "MCS9",
		[IWL_RATE_MCS_10_INDEX] = "MCS10",
		[IWL_RATE_MCS_11_INDEX] = "MCS11",
	};

	char *buff, *pos, *endpos;

Annotation

Implementation Notes