Update LICENCE.

DPDK: upgrade to DPDK 19.11.2(LTS).

KNI: remove the feature of monitor port's link status.
And if you want to use kni, you should do one of two action:
1. `insmod rte_kni.ko carrier=on` while init dpdk running environment.
2. or run `e

KNI: remove the feature of monitor port's link status.
And if you want to use kni, you should do one of two action:
1. `insmod rte_kni.ko carrier=on` while init dpdk running environment.
2. or run `echo 1 > /sys/class/net/veth0/carrier` after enable veth0 up.

Refer #401, but this is not the real reason of #401, it is the DPDK's ENA driver can't work correctly in multi-processes.

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support more than 32 processes; support 52bytes rsskey; compile failed.

IPv6: support multi-processes, deep copy NDP packet and dispatch.

IPv6: FreeBSD stack and f-stack support ipv6.

F-Stack's kni can work on DPDK 18.11 LTS now.

F-Stack's kni can work on DPDK 18.11 LTS now.

Revert "DPDK:upgrade to 18.11.0 LTS."

This reverts commit 8850115bd87ac2e168ca2ab33159528818d45fe8.

Revert "DPDK:upgrade to 18.11.0 LTS."

This reverts commit 8850115bd87ac2e168ca2ab33159528818d45fe8.

Format code.

Format code.

DPDK:upgrade to 18.11.0 LTS.

DPDK:upgrade to 18.11.0 LTS.

DPDK: upgrade to 17.11.2 LTS.

Changes:
1. This version is downloaded from
https://fast.dpdk.org/rel/dpdk-17.11.2.tar.xz.
2. Adapt the new interface `rte_ring_dequeue_burst`.
3. Change the type of `p

DPDK: upgrade to 17.11.2 LTS.

Changes:
1. This version is downloaded from
https://fast.dpdk.org/rel/dpdk-17.11.2.tar.xz.
2. Adapt the new interface `rte_ring_dequeue_burst`.
3. Change the type of `port_id` from uint8_t to uint16_t.
4. Just link libdpdk.a instead of the other libaries.
5. Install libnuma-dev first.
6. Update the documents.

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DPDK: upgrade to 17.11.2 LTS.

Changes:
1. This version is downloaded from
https://fast.dpdk.org/rel/dpdk-17.11.2.tar.xz.
2. Adapt the new interface `rte_ring_dequeue_burst`.
3. Change the type of `p

DPDK: upgrade to 17.11.2 LTS.

Changes:
1. This version is downloaded from
https://fast.dpdk.org/rel/dpdk-17.11.2.tar.xz.
2. Adapt the new interface `rte_ring_dequeue_burst`.
3. Change the type of `port_id` from uint8_t to uint16_t.
4. Just link libdpdk.a instead of the other libaries.
5. Install libnuma-dev first.
6. Update the documents.

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Use general protocol header length in protocol filter.

Use general protocol header length in protocol filter.

Api: add packet dispatch callback function register.

In some cases, for example, packets are forwarded to your server through
IP tunnel, and they will be received on fixed queues, since RSS doesn't

Api: add packet dispatch callback function register.

In some cases, for example, packets are forwarded to your server through
IP tunnel, and they will be received on fixed queues, since RSS doesn't support tunnels.So we need to dispatch them again.

With this commit, we can implement a dispatcher callback function and regist
it, packets retrieved from rx queue will be dispatched again according to
the dispatcher result.

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fix KNI: Out of memory

Add tool: sysctl.

This commit contains an ipc library implemented by dpdk rte_ring and
sysctl tool ported from FreeBSD.

With this commit we can get and set FreeBSD kernel state in runtime.

Fix kni bug.

BUG:
When set config.ini:
[kni]
enable=1
method=reject
tcp_port=80

Packets that not belond to tcp port 80 will not be transmitted to kernel.

init