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path: root/drivers/net/wireless/rt2x00/rt2x00debug.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00debug.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00debug.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00debug.c b/drivers/net/wireless/rt2x00/rt2x00debug.c
index 6bee1d611bbf..5cf4c859e39d 100644
--- a/drivers/net/wireless/rt2x00/rt2x00debug.c
+++ b/drivers/net/wireless/rt2x00/rt2x00debug.c
@@ -35,6 +35,13 @@
#define MAX_LINE_LENGTH 64
+struct rt2x00debug_crypto {
+ unsigned long success;
+ unsigned long icv_error;
+ unsigned long mic_error;
+ unsigned long key_error;
+};
+
struct rt2x00debug_intf {
/*
* Pointer to driver structure where
@@ -63,6 +70,7 @@ struct rt2x00debug_intf {
* - queue folder
* - frame dump file
* - queue stats file
+ * - crypto stats file
*/
struct dentry *driver_folder;
struct dentry *driver_entry;
@@ -80,6 +88,7 @@ struct rt2x00debug_intf {
struct dentry *queue_folder;
struct dentry *queue_frame_dump_entry;
struct dentry *queue_stats_entry;
+ struct dentry *crypto_stats_entry;
/*
* The frame dump file only allows a single reader,
@@ -98,6 +107,12 @@ struct rt2x00debug_intf {
wait_queue_head_t frame_dump_waitqueue;
/*
+ * HW crypto statistics.
+ * All statistics are stored seperately per cipher type.
+ */
+ struct rt2x00debug_crypto crypto_stats[CIPHER_MAX];
+
+ /*
* Driver and chipset files will use a data buffer
* that has been created in advance. This will simplify
* the code since we can use the debugfs functions.
@@ -114,6 +129,25 @@ struct rt2x00debug_intf {
unsigned int offset_rf;
};
+void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
+ enum cipher cipher, enum rx_crypto status)
+{
+ struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf;
+
+ if (cipher == CIPHER_TKIP_NO_MIC)
+ cipher = CIPHER_TKIP;
+ if (cipher == CIPHER_NONE || cipher > CIPHER_MAX)
+ return;
+
+ /* Remove CIPHER_NONE index */
+ cipher--;
+
+ intf->crypto_stats[cipher].success += (status == RX_CRYPTO_SUCCESS);
+ intf->crypto_stats[cipher].icv_error += (status == RX_CRYPTO_FAIL_ICV);
+ intf->crypto_stats[cipher].mic_error += (status == RX_CRYPTO_FAIL_MIC);
+ intf->crypto_stats[cipher].key_error += (status == RX_CRYPTO_FAIL_KEY);
+}
+
void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
enum rt2x00_dump_type type, struct sk_buff *skb)
{
@@ -327,6 +361,59 @@ static const struct file_operations rt2x00debug_fop_queue_stats = {
.release = rt2x00debug_file_release,
};
+#ifdef CONFIG_RT2X00_LIB_CRYPTO
+static ssize_t rt2x00debug_read_crypto_stats(struct file *file,
+ char __user *buf,
+ size_t length,
+ loff_t *offset)
+{
+ struct rt2x00debug_intf *intf = file->private_data;
+ char *name[] = { "WEP64", "WEP128", "TKIP", "AES" };
+ char *data;
+ char *temp;
+ size_t size;
+ unsigned int i;
+
+ if (*offset)
+ return 0;
+
+ data = kzalloc((1 + CIPHER_MAX)* MAX_LINE_LENGTH, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ temp = data;
+ temp += sprintf(data, "cipher\tsuccess\ticv err\tmic err\tkey err\n");
+
+ for (i = 0; i < CIPHER_MAX; i++) {
+ temp += sprintf(temp, "%s\t%lu\t%lu\t%lu\t%lu\n", name[i],
+ intf->crypto_stats[i].success,
+ intf->crypto_stats[i].icv_error,
+ intf->crypto_stats[i].mic_error,
+ intf->crypto_stats[i].key_error);
+ }
+
+ size = strlen(data);
+ size = min(size, length);
+
+ if (copy_to_user(buf, data, size)) {
+ kfree(data);
+ return -EFAULT;
+ }
+
+ kfree(data);
+
+ *offset += size;
+ return size;
+}
+
+static const struct file_operations rt2x00debug_fop_crypto_stats = {
+ .owner = THIS_MODULE,
+ .read = rt2x00debug_read_crypto_stats,
+ .open = rt2x00debug_file_open,
+ .release = rt2x00debug_file_release,
+};
+#endif
+
#define RT2X00DEBUGFS_OPS_READ(__name, __format, __type) \
static ssize_t rt2x00debug_read_##__name(struct file *file, \
char __user *buf, \
@@ -569,6 +656,13 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
debugfs_create_file("queue", S_IRUSR, intf->queue_folder,
intf, &rt2x00debug_fop_queue_stats);
+#ifdef CONFIG_RT2X00_LIB_CRYPTO
+ if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags))
+ intf->crypto_stats_entry =
+ debugfs_create_file("crypto", S_IRUGO, intf->queue_folder,
+ intf, &rt2x00debug_fop_crypto_stats);
+#endif
+
return;
exit:
@@ -587,6 +681,9 @@ void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
skb_queue_purge(&intf->frame_dump_skbqueue);
+#ifdef CONFIG_RT2X00_LIB_CRYPTO
+ debugfs_remove(intf->crypto_stats_entry);
+#endif
debugfs_remove(intf->queue_stats_entry);
debugfs_remove(intf->queue_frame_dump_entry);
debugfs_remove(intf->queue_folder);