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[v14,03/17] Add a ndo_mp_port_prep pointer to net_device_ops.

Message ID cd0686f2b8fc16a1d87ced228b2a90b93f008b94.1288860477.git.xiaohui.xin@intel.com
State Changes Requested, archived
Delegated to: David Miller
Headers show

Commit Message

Xin, Xiaohui Nov. 4, 2010, 9:04 a.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 f6b1870..575777f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -723,6 +723,12 @@  struct netdev_rx_queue {
  * int (*ndo_set_vf_port)(struct net_device *dev, int vf,
  *			  struct nlattr *port[]);
  * int (*ndo_get_vf_port)(struct net_device *dev, int vf, struct sk_buff *skb);
+ *
+ * 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 {
@@ -795,6 +801,10 @@  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
 };
 
 /*