From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joao Martins Subject: [RFC PATCH 07/13] xen-netback: add persistent tree counters to debugfs Date: Tue, 12 May 2015 19:18:31 +0200 Message-ID: <1431451117-70051-8-git-send-email-joao.martins@neclab.eu> References: <1431451117-70051-1-git-send-email-joao.martins@neclab.eu> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: wei.liu2@citrix.com, ian.campbell@citrix.com, Joao Martins , david.vrabel@citrix.com, boris.ostrovsky@oracle.com To: , Return-path: In-Reply-To: <1431451117-70051-1-git-send-email-joao.martins@neclab.eu> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org List-Id: netdev.vger.kernel.org Prints the total/max number of persistent grants and how many of them are in use. Signed-off-by: Joao Martins --- drivers/net/xen-netback/xenbus.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index 766f7e5..1e6f27a 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -121,6 +121,17 @@ static int xenvif_read_io_ring(struct seq_file *m, void *v) skb_queue_len(&queue->rx_queue), netif_tx_queue_stopped(dev_queue) ? "stopped" : "running"); + if (queue->vif->persistent_grants) { + seq_printf(m, "\nRx persistent_gnts: in_use %d max %d gnts %d\n", + atomic_read(&queue->rx_gnts_tree.gnt_in_use), + queue->rx_gnts_tree.gnt_max, + queue->rx_gnts_tree.gnt_c); + seq_printf(m, "\nTx persistent_gnts: in_use %d max %d gnts %d\n", + atomic_read(&queue->tx_gnts_tree.gnt_in_use), + queue->tx_gnts_tree.gnt_max, + queue->tx_gnts_tree.gnt_c); + } + return 0; } -- 2.1.3