From: Oz Shlomo <ozsh@nvidia.com>
To: Marcelo Ricardo Leitner <mleitner@redhat.com>
Cc: Pedro Tammela <pctammela@mojatatu.com>,
netdev@vger.kernel.org, Saeed Mahameed <saeedm@nvidia.com>,
Roi Dayan <roid@nvidia.com>, Jiri Pirko <jiri@nvidia.com>,
Simon Horman <simon.horman@corigine.com>,
Baowen Zheng <baowen.zheng@corigine.com>,
Jamal Hadi Salim <jhs@mojatatu.com>,
Edward Cree <ecree.xilinx@gmail.com>
Subject: Re: [PATCH net-next 2/9] net/sched: act_pedit, setup offload action for action stats query
Date: Sun, 5 Feb 2023 15:00:56 +0200 [thread overview]
Message-ID: <bb01f89c-194f-ba2b-f899-62818e39341a@nvidia.com> (raw)
In-Reply-To: <CALnP8ZZtqkumhUrRtCAqQDHQfEydG0YaszZrafjuXL2CV_oDCw@mail.gmail.com>
On 03/02/2023 17:31, Marcelo Ricardo Leitner wrote:
> On Thu, Feb 02, 2023 at 09:21:15AM +0200, Oz Shlomo wrote:
>> On 01/02/2023 22:59, Pedro Tammela wrote:
>>> On 01/02/2023 13:10, Oz Shlomo wrote:
>>>> A single tc pedit action may be translated to multiple flow_offload
>>>> actions.
>>>> Offload only actions that translate to a single pedit command value.
>>>>
>>>> Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
>>>> ---
>>>> net/sched/act_pedit.c | 24 +++++++++++++++++++++++-
>>>> 1 file changed, 23 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
>>>> index a0378e9f0121..abceef794f28 100644
>>>> --- a/net/sched/act_pedit.c
>>>> +++ b/net/sched/act_pedit.c
>>>> @@ -522,7 +522,29 @@ static int tcf_pedit_offload_act_setup(struct
>>>> tc_action *act, void *entry_data,
>>>> }
>>>> *index_inc = k;
>>>> } else {
>>>> - return -EOPNOTSUPP;
>>>> + struct flow_offload_action *fl_action = entry_data;
>>>> + u32 last_cmd;
>>>> + int k;
>>>> +
>>>> + for (k = 0; k < tcf_pedit_nkeys(act); k++) {
>>>> + u32 cmd = tcf_pedit_cmd(act, k);
>>>> +
>>>> + if (k && cmd != last_cmd)
>>>> + return -EOPNOTSUPP;
>>> I believe an extack message here is very valuable
>> Sure thing, I will add one
>>>> +
>>>> + last_cmd = cmd;
>>>> + switch (cmd) {
>>>> + case TCA_PEDIT_KEY_EX_CMD_SET:
>>>> + fl_action->id = FLOW_ACTION_MANGLE;
>>>> + break;
>>>> + case TCA_PEDIT_KEY_EX_CMD_ADD:
>>>> + fl_action->id = FLOW_ACTION_ADD;
>>>> + break;
>>>> + default:
>>>> + NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit
>>>> command offload");
>>>> + return -EOPNOTSUPP;
>>>> + }
>>>> + }
>>> Shouldn't this switch case be outside of the for-loop?
>> You are right, this can be done outside the for loop.
> To before the for-loop, that is?
> Because otherwise it will parse all commands and then fail, which seems heavier
> than how it is here.
>
> - validate the first one
> - ensure the rest follows
Right
>> I will refactor the code
>>
>>>> }
>>>> return 0;
next prev parent reply other threads:[~2023-02-05 13:01 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-01 16:10 [PATCH net-next 0/9] net: flow_offload: add support for per action hw stats Oz Shlomo
2023-02-01 16:10 ` [PATCH net-next 1/9] net/sched: optimize action stats api calls Oz Shlomo
2023-02-03 14:34 ` Simon Horman
2023-02-01 16:10 ` [PATCH net-next 2/9] net/sched: act_pedit, setup offload action for action stats query Oz Shlomo
2023-02-01 20:59 ` Pedro Tammela
2023-02-02 7:21 ` Oz Shlomo
2023-02-03 15:31 ` Marcelo Ricardo Leitner
2023-02-05 13:00 ` Oz Shlomo [this message]
2023-02-01 16:10 ` [PATCH net-next 3/9] net/sched: pass flow_stats instead of multiple stats args Oz Shlomo
2023-02-03 14:34 ` Simon Horman
2023-02-01 16:10 ` [PATCH net-next 4/9] net/sched: introduce flow_offload action cookie Oz Shlomo
2023-02-03 14:38 ` Simon Horman
2023-02-01 16:10 ` [PATCH net-next 5/9] net/sched: support per action hw stats Oz Shlomo
2023-02-03 14:33 ` Simon Horman
2023-02-05 13:01 ` Oz Shlomo
2023-02-03 14:51 ` Simon Horman
2023-02-05 13:02 ` Oz Shlomo
2023-02-01 16:10 ` [PATCH net-next 6/9] net/mlx5e: TC, add hw counter to branching actions Oz Shlomo
2023-02-01 16:10 ` [PATCH net-next 7/9] net/mlx5e: TC, store tc action cookies per attr Oz Shlomo
2023-02-03 16:11 ` Marcelo Ricardo Leitner
2023-02-05 13:13 ` Oz Shlomo
2023-02-01 16:10 ` [PATCH net-next 8/9] net/sched: TC, map tc action cookie to a hw counter Oz Shlomo
2023-02-01 16:10 ` [PATCH net-next 9/9] net/sched: TC, support per action stats Oz Shlomo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bb01f89c-194f-ba2b-f899-62818e39341a@nvidia.com \
--to=ozsh@nvidia.com \
--cc=baowen.zheng@corigine.com \
--cc=ecree.xilinx@gmail.com \
--cc=jhs@mojatatu.com \
--cc=jiri@nvidia.com \
--cc=mleitner@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=pctammela@mojatatu.com \
--cc=roid@nvidia.com \
--cc=saeedm@nvidia.com \
--cc=simon.horman@corigine.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).