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netdev: Send ofpbuf directly to netdev.

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DPDK netdev need to access ofpbuf while sending buffer. Following
patch changes netdev_send accordingly.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Thomas Graf <tgraf@redhat.com>
This commit is contained in:
Pravin
2014-03-20 10:56:51 -07:00
committed by Pravin B Shelar
parent df1e5a3bc7
commit 40d26f04b2
7 changed files with 37 additions and 18 deletions
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14
lib/netdev-provider.h
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@@ -223,13 +223,13 @@ struct netdev_class {
const struct netdev_tunnel_config *
(*get_tunnel_config)(const struct netdev *netdev);
/* Sends the 'size'-byte packet in 'buffer' on 'netdev'. Returns 0 if
* successful, otherwise a positive errno value. Returns EAGAIN without
* blocking if the packet cannot be queued immediately. Returns EMSGSIZE
* if a partial packet was transmitted or if the packet is too big or too
* small to transmit on the device.
/* Sends the buffer on 'netdev'.
* Returns 0 if successful, otherwise a positive errno value. Returns
* EAGAIN without blocking if the packet cannot be queued immediately.
* Returns EMSGSIZE if a partial packet was transmitted or if the packet
* is too big or too small to transmit on the device.
*
* The caller retains ownership of 'buffer' in all cases.
* To retain ownership of 'buffer' caller can set may_steal to false.
*
* The network device is expected to maintain a packet transmission queue,
* so that the caller does not ordinarily have to do additional queuing of
@@ -241,7 +241,7 @@ struct netdev_class {
* network device from being usefully used by the netdev-based "userspace
* datapath". It will also prevent the OVS implementation of bonding from
* working properly over 'netdev'.) */
int (*send)(struct netdev *netdev, const void *buffer, size_t size);
int (*send)(struct netdev *netdev, struct ofpbuf *buffer, bool may_steal);
/* Registers with the poll loop to wake up from the next call to
* poll_block() when the packet transmission queue for 'netdev' has