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dp_packet is short and better name for datapath packet
structure.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
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Today dpif-netdev has single metadat for given batch, since one
batch belongs to one port, but soon packets fro single tunnel ports
can belong to different ports, so we need to have per packet metadata.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
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This change in dpif-netdev allows faster packet processing for devices which
implement batching (netdev-dpdk currently).
Signed-off-by: Daniele Di Proietto <ddiproietto@vmware.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
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This commit introduces a new data structure used for receiving packets from
netdevs and passing them to dpifs.
The purpose of this change is to allow storing some private data for each
packet. The subsequent commits make use of it.
Signed-off-by: Daniele Di Proietto <ddiproietto@vmware.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
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Add basic recirculation infrastructure and user space
data path support for it. The following bond mega flow patch will
make use of this infrastructure.
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
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DPDK can receive multiple packets but current netdev API does
not allow that. Following patch allows dpif-netdev receive batch
of packet in a rx_recv() call for any netdev port. This will be
used by dpdk-netdev.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
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This helps reduce confusion about when a flow is a flow and when it is
just metadata.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
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Use one callback instead of many, helps in adding new functionality
later on.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
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Allowing the packet to be modified by execution allows less data
copying for userspace action execution. Some users of the
dpif_execute already expect that the packet may be modified. This
patch makes this behavior uniform and makes the userspace datapath and
the execution helpers modify the packet as it is being executed.
Userspace action now steals the packet if given permission, as the
packet is normally not needed after it. The only exception is the
sample action, and this is accounted for my keeping track of any
actions that could be following the userspace action.
The packet in dpif_upcall is changed from a pointer to a struct,
allowing the packet to be honest about it's headroom. After this
change the packet can safely be pushed on over the precarious 4 byte
limit earlier allowed by the netlink data preceding the packet.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
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Signed-off-by: Ben Pfaff <blp@nicira.com>
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This moves generic action execution code out of lib/dpif-netedev.c
and into a new file, lib/odp-execute.c.
This is in preparation for using odp_execute_actions()
in lib/odp-util.c to handle recirculation/
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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