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[v12,03/17] Add a ndo_mp_port_prep pointer to net_device_ops.

Message ID 71d822c4ef96c404f21fce724549c0ba9f71bd36.1285853725.git.xiaohui.xin@intel.com
State RFC, archived
Delegated to: David Miller
Headers show

Commit Message

Xin, Xiaohui Sept. 30, 2010, 2:04 p.m. UTC 
From: Xin Xiaohui <xiaohui.xin@intel.com>

If the driver want to allocate external buffers,
then it can export it's capability, as the skb
buffer header length, the page length can be DMA, etc.
The external buffers owner may utilize this.

Signed-off-by: Xin Xiaohui <xiaohui.xin@intel.com>
Signed-off-by: Zhao Yu <yzhao81new@gmail.com>
Reviewed-by: Jeff Dike <jdike@linux.intel.com>
---
 include/linux/netdevice.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
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Patch

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9ef9bf1..24a31e7 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -651,6 +651,12 @@  struct mp_port	{
  * int (*ndo_set_vf_tx_rate)(struct net_device *dev, int vf, int rate);
  * int (*ndo_get_vf_config)(struct net_device *dev,
  *			    int vf, struct ifla_vf_info *ivf);
+ *
+ * int (*ndo_mp_port_prep)(struct net_device *dev, struct mp_port *port);
+ *	If the driver want to allocate external buffers,
+ *	then it can export it's capability, as the skb
+ *	buffer header length, the page length can be DMA, etc.
+ *	The external buffers owner may utilize this.
  */
 #define HAVE_NET_DEVICE_OPS
 struct net_device_ops {
@@ -713,6 +719,10 @@  struct net_device_ops {
 	int			(*ndo_fcoe_get_wwn)(struct net_device *dev,
 						    u64 *wwn, int type);
 #endif
+#if defined(CONFIG_MEDIATE_PASSTHRU) || defined(CONFIG_MEDIATE_PASSTHRU_MODULE)
+	int			(*ndo_mp_port_prep)(struct net_device *dev,
+						struct mp_port *port);
+#endif
 };
 
 /*