From: xiaohui.xin@intel.com
To: netdev@vger.kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, mst@redhat.com, mingo@elte.hu,
davem@davemloft.net, herbert@gondor.apana.org.au,
jdike@linux.intel.com
Cc: Xin Xiaohui <xiaohui.xin@intel.com>
Subject: [PATCH v14 03/17] Add a ndo_mp_port_prep pointer to net_device_ops.
Date: Thu, 4 Nov 2010 17:04:59 +0800 [thread overview]
Message-ID: <cd0686f2b8fc16a1d87ced228b2a90b93f008b94.1288860477.git.xiaohui.xin@intel.com> (raw)
In-Reply-To: <1288861513-5707-1-git-send-email-xiaohui.xin@intel.com>
In-Reply-To: <fc6e95d63a2c62aaf77f8ded22fc43ccefcdbbff.1288860477.git.xiaohui.xin@intel.com>
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(-)
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
};
/*
--
1.7.3
next prev parent reply other threads:[~2010-11-04 9:04 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-04 9:04 [PATCH v14 00/17] Provide a zero-copy method on KVM virtio-net xiaohui.xin
2010-11-04 9:04 ` [PATCH v14 01/17] Add a new structure for skb buffer from external xiaohui.xin
2010-11-04 9:04 ` [PATCH v14 02/17] Add a new struct for device to manipulate external buffer xiaohui.xin
2010-11-04 9:04 ` xiaohui.xin [this message]
2010-11-04 9:05 ` [PATCH v14 04/17] Add a function make external buffer owner to query capability xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 05/17] Add a function to indicate if device use external buffer xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 06/17] Use callback to deal with skb_release_data() specially xiaohui.xin
2010-11-04 9:04 ` Eric Dumazet
2010-11-04 9:07 ` Eric Dumazet
2010-11-08 8:03 ` xiaohui.xin
2010-11-08 8:24 ` Eric Dumazet
2010-11-08 8:39 ` Xin, Xiaohui
2010-11-04 9:05 ` [PATCH v14 07/17]Modify netdev_alloc_page() to get external buffer xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 08/17] Modify netdev_free_page() to release " xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 09/17] Don't do skb recycle, if device use " xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 10/17] If device is in zero-copy mode first, bonding will fail xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 11/17] Add a hook to intercept external buffers from NIC driver xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 12/17] Add header file for mp device xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 13/17] Add mp(mediate passthru) device xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 14/17] Add a kconfig entry and make entry for mp device xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 15/17]Provides multiple submits and asynchronous notifications xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 16/17] An example how to modifiy NIC driver to use napi_gro_frags() interface xiaohui.xin
2010-11-04 9:05 ` [PATCH v14 17/17] An example how to alloc user buffer based on " xiaohui.xin
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