From: Hideyuki Yamashita <yamashita.hideyuki@ntt-tx.co.jp>
To: "users@dpdk.org" <users@dpdk.org>
Subject: [dpdk-users] How L2 broadcast is handled under rte_flow?
Date: Wed, 14 Aug 2019 14:56:03 +0900 [thread overview]
Message-ID: <20190814145603.D122.17218CA3@ntt-tx.co.jp_1> (raw)
In-Reply-To: <20190809150558.D116.17218CA3@ntt-tx.co.jp_1>
Hello Experts,
I have basic questions on how L2 broadcast is handled under rte_flow.
[Question1]
To which queue L2 broadcast packet will be received?
testpmd> flow create 0 ingress pattern eth dst is 11:22:33:44:55:66 type mask 0xffff / end actions queue index 1 / end
testpmd> flow create 0 ingress pattern eth dst is 22:33:44:55:66:77 type mask 0xffff / end actions queue index 2 / end
My expectation is both queue 1 and queue 2 receive broadcast(dst MAC is
FF:FF:FF:FF:FF:FF).
Or only default queue (queue 0 ) receive the packet?
If we assume NIC act as switching hub and queues are ports,
broadcast packets will be flooded to all available ports.
Let us assume the situation that there exists software switch
which act like switching hub (deliver packets based on dst MAC),
and I want the function offload to NIC via rte_flow.
[Question2]
What happens if VLAN is involved?
My expectation is as following:
If receive broadcast packet (dst is FF:FF:FF:FF:FF:FF) for specific vlan,
all queues related to this vlan id will receive the broadcast packet.
Is my understanding correct?
It may depends on each rte_flow implementations.
But if there is a rule in common among various NICs, I want to know.
next prev parent reply other threads:[~2019-08-14 5:56 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-19 6:08 [dpdk-users] Why flow can not be created? Hideyuki Yamashita
2019-07-22 12:48 ` Ye Xiaolong
2019-07-23 6:26 ` Hideyuki Yamashita
2019-07-30 10:37 ` Hideyuki Yamashita
2019-07-30 12:25 ` Adrien Mazarguil
2019-07-31 2:30 ` Hideyuki Yamashita
2019-08-02 6:06 ` Hideyuki Yamashita
2019-08-06 9:12 ` Adrien Mazarguil
2019-08-06 9:59 ` Moti Haimovsky
2019-08-09 6:05 ` Hideyuki Yamashita
2019-08-14 5:56 ` Hideyuki Yamashita [this message]
2019-08-29 3:11 ` [dpdk-users] How L2 broadcast is handled under rte_flow? Hideyuki Yamashita
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