[RFC PATCH 07/13] xen-netback: add persistent tree counters to debugfs
From: Joao Martins <hidden>
Date: 2015-05-12 17:18:31
Also in:
xen-devel
Subsystem:
networking drivers, the rest, xen network backend driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Wei Liu, Paul Durrant
Prints the total/max number of persistent grants and how many of them are in use. Signed-off-by: Joao Martins <redacted> --- 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