Add per-hci connection rx/tx stats and expose through debugfs
"connections" file.
Example file contents:
s a p
h t t o s k u s s p r
n y a u s e t e e i e
Dest l p t t p y h c c n f
BC:0D:A5:7A:F5:96 14 ACL 1 1 1 0xff 0 1 0 0 1
00:0D:FD:1E:99:30 13 ACL 1 0 0 0xff 4 2 2 0 1
00:07:61:B2:3E:97 12 ACL 1 0 0 0xff 4 0 0 0 2
00:07:61:76:D8:1B 11 ACL 1 0 0 0xff 4 1 0 0 2
Rx Tx
Dest bytes pkt err null bytes pkt err unack
BC:0D:A5:7A:F5:96 0 0 0 0 0 0 0 7
00:0D:FD:1E:99:30 0 0 0 0 0 0 0 0
00:07:61:B2:3E:97 0 0 0 0 0 0 0 0
00:07:61:76:D8:1B 0 0 0 0 0 0 0 0
Signed-off-by: Peter Hurley <[email protected]>
---
v2: Add example output to commit msg
include/net/bluetooth/hci_core.h | 12 ++++++++++++
net/bluetooth/hci_sysfs.c | 17 +++++++++++++++++
2 files changed, 29 insertions(+), 0 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 6c994c0..1f2ed18 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -208,6 +208,16 @@ struct hci_dev {
int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
};
+struct hci_conn_stats {
+ __u32 null_rx;
+ __u32 err_rx;
+ __u32 err_tx;
+ __u32 pkt_rx;
+ __u32 pkt_tx;
+ __u32 byte_rx;
+ __u32 byte_tx;
+};
+
struct hci_conn {
struct list_head list;
@@ -253,6 +263,8 @@ struct hci_conn {
struct work_struct work_add;
struct work_struct work_del;
+ struct hci_conn_stats stats;
+
struct device dev;
atomic_t devref;
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 3d00769..0775398 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -568,6 +568,23 @@ static int connections_show(struct seq_file *f, void *p)
atomic_read(&c->devref));
}
+ seq_printf(f, "\n\n Rx "
+ "Tx\n");
+ seq_printf(f, "Dest bytes pkt err null "
+ "bytes pkt err unack\n");
+
+ list_for_each(l, &h->list) {
+ struct hci_conn *c;
+ c = list_entry(l, struct hci_conn, list);
+
+ seq_printf(f,"%s %-11u %-6u %-3u %-5u %-11u %-6u %-3u %u\n",
+ batostr(&c->dst),
+ c->stats.byte_rx, c->stats.pkt_rx,
+ c->stats.err_rx, c->stats.null_rx,
+ c->stats.byte_tx, c->stats.pkt_tx,
+ c->stats.err_tx, c->sent);
+ };
+
hci_dev_unlock_bh(hdev);
return 0;
--
1.7.4.1