Return-Path: From: Peter Hurley To: linux-bluetooth Date: Fri, 2 Sep 2011 19:52:46 -0400 Subject: [RFC v2 3/4] Bluetooth: Track per-connection stats Message-ID: <1315007566.2495.5.camel@THOR> Content-Type: text/plain; charset=US-ASCII MIME-Version: 1.0 Sender: linux-bluetooth-owner@vger.kernel.org List-ID: 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 --- 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