This scratchpad can be used by any layer to keep private data.
STT will use it for TCP reassembly state.
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
All code is now in include/openvswitch/list.h.
Signed-off-by: Ben Warren <ben@skyportsystems.com>
Acked-by: Ryan Moats <rmoats@us.ibm.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
DPDK mbufs contain a valid RSS hash only if PKT_RX_RSS_HASH is
set in 'ol_flags'. Otherwise the hash is garbage and doesn't
relate to the packet.
This fixes an issue with vhost, which, being a virtual NIC, doesn't
compute the hash.
Reported-by: Dongjun <dongj@dtdream.com>
Suggested-by: Flavio Leitner <fbl@sysclose.org>
Acked-by: Kevin Traynor <kevin.traynor@intel.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
DPDK buf_len is only 16-bit wide ('allocated' was 32-bit), but it should
be enough to store the number of allocated bytes.
This will reduce 'struct dp_packet' size.
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
In 'struct ofpbuf' the 'frame' pointer was used to parse different kinds of
data (Ethernet, OpenFlow, Netlink attributes). For Ethernet packets the
'frame' pointer was supposed to have the same value as the 'data'
pointer.
Since 'struct dp_packet' is only used for Ethernet packets, there's no
need for a separate 'frame' pointer: we can use the 'data' pointer
instead.
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
The 'list' member is only used (two users) in the slow path.
This commit removes it to reduce the struct size
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
We already have the 'dp_hash' embedded in the metadata. This caused
confusion in the code. With this commit it should be clear that
'rss_hash' is the packet hash used for internal purposes, while
'md.dp_hash' is part of the flow, computed during the execution of
certain actions.
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
DPDK v1.8.0 makes significant changes to struct rte_mbuf, including
removal of the 'pkt' and 'data' fields. The latter, formally a
pointer, is now calculated via an offset from the start of the
segment buffer. So now dp_packet data is also stored as offset
from base pointer.
Signed-off-by: Mark Kavanagh <mark.b.kavanagh@intel.com>
Signed-off-by: Rory Sexton <rory.sexton@intel.com>
Signed-off-by: Kevin Traynor <kevin.traynor@intel.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Currently dp-packet make use of ofpbuf for managing packet
buffers. That complicates ofpbuf, by making dp-packet
independent of ofpbuf both libraries can be optimized for
their own use case.
This avoids mapping operation between ofpbuf and dp_packet
in datapath upcalls.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
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>
