From: Jiri Pirko <jiri@resnulli.us>
To: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: netdev@vger.kernel.org, davem@davemloft.net,
xiyou.wangcong@gmail.com, mlxsw@mellanox.com, andrew@lunn.ch,
vivien.didelot@savoirfairelinux.com, f.fainelli@gmail.com,
michael.chan@broadcom.com, ganeshgr@chelsio.com,
saeedm@mellanox.com, matanb@mellanox.com, leonro@mellanox.com,
idosch@mellanox.com, jakub.kicinski@netronome.com,
simon.horman@netronome.com, pieter.jansenvanvuuren@netronome.com,
john.hurley@netronome.com, alexander.h.duyck@intel.com,
ogerlitz@mellanox.com, john.fastabend@gmail.com,
daniel@iogearbox.net, dsahern@gmail.com
Subject: Re: [patch net-next v6 06/11] net: sched: use block index as a handle instead of qdisc when block is shared
Date: Sun, 7 Jan 2018 14:46:38 +0100 [thread overview]
Message-ID: <20180107134638.GA14494@nanopsycho> (raw)
In-Reply-To: <47d2949d-6ebc-6113-8bd1-3ecdb15563f8@mojatatu.com>
Sun, Jan 07, 2018 at 02:11:19PM CET, jhs@mojatatu.com wrote:
>On 18-01-06 03:43 PM, Jiri Pirko wrote:
>
>
>>
>> > @@ -886,8 +887,13 @@ static int tcf_fill_node(struct net *net, struct sk_buff *skb,
>> > tcm->tcm_family = AF_UNSPEC;
>> > tcm->tcm__pad1 = 0;
>> > tcm->tcm__pad2 = 0;
>> > - tcm->tcm_ifindex = qdisc_dev(q)->ifindex;
>> > - tcm->tcm_parent = parent;
>> > + if (q) {
>> > + tcm->tcm_ifindex = qdisc_dev(q)->ifindex;
>> > + tcm->tcm_parent = parent;
>> > + } else {
>> > + tcm->tcm_ifindex = 0; /* block index is stored in parent */
>> > + tcm->tcm_parent = block->index;
>> > + }
>>
>> Please guys, please look at this reuse (also on clt side). I would like
>> you to double-check this reuse of existing API for balock_index carrying
>> purpose. I believe it's UAPI safe. But please, check it out carefully.
>>
>
>
>Should not break any ABI/UAPI AFAIK. Maybe go for a negative ifindex
>(not sure if zero means something speacial to someone).
Like -1 means parent is block_index?
Why would 0 mean something special? Could you point to a code that
suggests it?
>
>cheers,
>jamal
>
next prev parent reply other threads:[~2018-01-07 13:46 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-05 23:09 [patch net-next v6 00/11] net: sched: allow qdiscs to share filter block instances Jiri Pirko
2018-01-05 23:09 ` [patch net-next v6 01/11] net: sched: introduce support for multiple filter chain pointers registration Jiri Pirko
2018-01-06 17:11 ` Jiri Pirko
2018-01-05 23:09 ` [patch net-next v6 02/11] net: sched: avoid usage of tp->q in tcf_classify Jiri Pirko
2018-01-05 23:09 ` [patch net-next v6 03/11] net: sched: introduce block mechanism to handle netif_keep_dst calls Jiri Pirko
2018-01-05 23:09 ` [patch net-next v6 04/11] net: sched: remove classid and q fields from tcf_proto Jiri Pirko
2018-01-05 23:09 ` [patch net-next v6 05/11] net: sched: keep track of offloaded filters and check tc offload feature Jiri Pirko
2018-01-05 23:09 ` [patch net-next v6 06/11] net: sched: use block index as a handle instead of qdisc when block is shared Jiri Pirko
2018-01-06 20:43 ` Jiri Pirko
2018-01-07 13:11 ` Jamal Hadi Salim
2018-01-07 13:46 ` Jiri Pirko [this message]
2018-01-07 14:28 ` Jamal Hadi Salim
2018-01-07 14:51 ` Jamal Hadi Salim
2018-01-05 23:09 ` [patch net-next v6 07/11] net: sched: allow ingress and clsact qdiscs to share filter blocks Jiri Pirko
2018-01-05 23:09 ` [patch net-next v6 08/11] mlxsw: spectrum_acl: Reshuffle code around mlxsw_sp_acl_ruleset_create/destroy Jiri Pirko
2018-01-05 23:09 ` [patch net-next v6 09/11] mlxsw: spectrum_acl: Don't store netdev and ingress for ruleset unbind Jiri Pirko
2018-01-05 23:09 ` [patch net-next v6 10/11] mlxsw: spectrum_acl: Implement TC block sharing Jiri Pirko
2018-01-05 23:09 ` [patch net-next v6 11/11] mlxsw: spectrum_acl: Pass mlxsw_sp_port down to ruleset bind/unbind ops Jiri Pirko
2018-01-05 23:12 ` [iproute2 net-next 1/2] tc: implement filter block sharing to ingress and clsact qdiscs Jiri Pirko
2018-01-05 23:12 ` [iproute2 net-next 2/2] tc: introduce support for block-handle for filter operations Jiri Pirko
2018-01-06 3:57 ` [patch net-next v6 00/11] net: sched: allow qdiscs to share filter block instances David Ahern
2018-01-06 8:07 ` Jiri Pirko
2018-01-06 9:48 ` Jiri Pirko
2018-01-06 18:02 ` Jamal Hadi Salim
2018-01-06 18:31 ` Jamal Hadi Salim
2018-01-06 19:29 ` David Ahern
2018-01-06 17:41 ` David Ahern
2018-01-06 18:16 ` Jamal Hadi Salim
2018-01-06 20:38 ` Jiri Pirko
2018-01-06 20:37 ` Jiri Pirko
2018-01-08 15:23 ` Marcelo Ricardo Leitner
2018-01-08 15:42 ` Jiri Pirko
2018-01-08 17:20 ` Marcelo Ricardo Leitner
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