diff options
| author | Zoltan Kiss <zoltan.kiss@citrix.com> | 2014-07-08 19:49:14 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-08 20:48:36 -0700 |
| commit | f51de24356e49e4dcb5095e87717065580912120 (patch) | |
| tree | 33439ff1f49a3d2d61455f0c6585b3369088b25c /drivers/net/xen-netback/interface.c | |
| parent | a37934fc0d0c087dd120dba229077048f1abfd37 (diff) | |
| download | op-kernel-dev-f51de24356e49e4dcb5095e87717065580912120.zip op-kernel-dev-f51de24356e49e4dcb5095e87717065580912120.tar.gz | |
xen-netback: Adding debugfs "io_ring_qX" files
This patch adds debugfs capabilities to netback. There used to be a similar
patch floating around for classic kernel, but it used procfs. It is based on a
very similar blkback patch.
It creates xen-netback/[vifname]/io_ring_q[queueno] files, reading them output
various ring variables etc. Writing "kick" into it imitates an interrupt
happened, it can be useful to check whether the ring is just stalled due to a
missed interrupt.
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
| -rw-r--r-- | drivers/net/xen-netback/interface.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 9e97c7c..ef75b45 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -102,7 +102,7 @@ static irqreturn_t xenvif_rx_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static irqreturn_t xenvif_interrupt(int irq, void *dev_id) +irqreturn_t xenvif_interrupt(int irq, void *dev_id) { xenvif_tx_interrupt(irq, dev_id); xenvif_rx_interrupt(irq, dev_id); |
