From: Jie Hai <haijie1@huawei.com>
To: Konstantin Ananyev <konstantin.v.ananyev@yandex.ru>,
<honnappa.nagarahalli@arm.com>, <dev@dpdk.org>
Cc: <liudongdong3@huawei.com>
Subject: Re: [PATCH v3 2/2] ring: add ring info telemetry cmd
Date: Fri, 3 Feb 2023 15:28:00 +0800 [thread overview]
Message-ID: <aad48381-1790-f023-3ff1-f6f20f0bec1d@huawei.com> (raw)
In-Reply-To: <defe471e-0d1a-bcca-bec5-bfa743d4c1c0@yandex.ru>
On 2023/2/2 21:07, Konstantin Ananyev wrote:
> 31/01/2023 02:28, Jie Hai пишет:
>> This patch supports dump of the info of ring by its name.
>> An example using this command is shown below:
>>
>> --> /ring/info,MP_mb_pool_0
>> {
>> "/ring/info": {
>> "name": "MP_mb_pool_0",
>> "socket": 0,
>> "flags": 0,
>> "producer_type": "MP",
>> "consumer_type": "MC",
>> "size": 262144,
>> "mask": 262143,
>> "capacity": 262143,
>> "used_count": 147173,
>> "consumer_tail": 8283,
>> "consumer_head": 8283,
>> "producer_tail": 155456,
>> "producer_head": 155456,
>> "mz_name": "RG_MP_mb_pool_0",
>> "mz_len": 2097920,
>> "mz_hugepage_sz": 1073741824,
>> "mz_socket_id": 0,
>> "mz_flags": 0
>> }
>> }
>>
>> Signed-off-by: Jie Hai <haijie1@huawei.com>
>> +static int
>> +ring_handle_info(const char *cmd __rte_unused, const char *params,
>> + struct rte_tel_data *d)
>> +{
>> + const struct rte_memzone *mz;
>> + struct rte_ring *r;
>> +
>> + if (params == NULL || strlen(params) == 0 ||
>> + strlen(params) >= RTE_RING_NAMESIZE)
>> + return -EINVAL;
>> +
>> + r = rte_ring_lookup(params);
>> + if (r == NULL)
>> + return -EINVAL;
>
> thanks for the update, but I think there still a potential problem here:
> as we release tailq_lock inside ring_lookup() and then grab it after again.
> Between these two points we have sort of race condition.
> We need a way not to release it in between.
> Probably the simplest way - make this function to use ring_walk()
> that you introduced in previous patch, instead of ring_lookup().
> Similar to what mempool_handle_info() is doing.
>
>
Thanks for your comments, and I have learned a lot from it. That will be
corrected in v4.
> .
next prev parent reply other threads:[~2023-02-03 7:28 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-17 9:10 [PATCH 0/2] add ring telemetry cmds Jie Hai
2023-01-17 9:10 ` [PATCH 1/2] ring: add ring list telemetry cmd Jie Hai
2023-01-17 9:10 ` [PATCH 2/2] ring: add ring info " Jie Hai
2023-01-17 13:03 ` [PATCH v2 0/2] add ring telemetry cmds Jie Hai
2023-01-17 13:03 ` [PATCH v2 1/2] ring: add ring list telemetry cmd Jie Hai
2023-01-22 16:40 ` Konstantin Ananyev
2023-01-31 3:09 ` Jie Hai
2023-01-17 13:03 ` [PATCH v2 2/2] ring: add ring info " Jie Hai
2023-01-22 17:49 ` Konstantin Ananyev
2023-01-31 3:11 ` Jie Hai
2023-01-31 2:28 ` [PATCH v3 0/2] add ring telemetry cmds Jie Hai
2023-01-31 2:28 ` [PATCH v3 1/2] ring: add ring list telemetry cmd Jie Hai
2023-01-31 16:44 ` Honnappa Nagarahalli
2023-02-03 7:20 ` Jie Hai
2023-01-31 2:28 ` [PATCH v3 2/2] ring: add ring info " Jie Hai
2023-01-31 16:44 ` Honnappa Nagarahalli
2023-02-03 7:04 ` Jie Hai
2023-02-02 13:07 ` Konstantin Ananyev
2023-02-03 7:28 ` Jie Hai [this message]
2023-02-10 2:48 ` [PATCH v4 0/3] add telemetry cmds for ring Jie Hai
2023-02-10 2:48 ` [PATCH v4 1/3] ring: fix unmatched type definition and usage Jie Hai
2023-02-10 2:48 ` [PATCH v4 2/3] ring: add telemetry cmd to list rings Jie Hai
2023-02-16 6:56 ` lihuisong (C)
2023-02-10 2:48 ` [PATCH v4 3/3] ring: add telemetry cmd for ring info Jie Hai
2023-02-14 23:13 ` Konstantin Ananyev
2023-02-16 6:54 ` lihuisong (C)
2023-02-20 12:55 ` David Marchand
2023-06-20 8:14 ` Jie Hai
2023-06-20 14:34 ` Thomas Monjalon
2023-07-04 8:04 ` Jie Hai
2023-07-04 14:11 ` Thomas Monjalon
2023-07-06 8:52 ` David Marchand
2023-07-07 2:18 ` Jie Hai
2023-02-15 3:04 ` [PATCH v4 0/3] add telemetry cmds for ring fengchengwen
2023-05-09 1:29 ` [PATCH v5 " Jie Hai
2023-05-09 1:29 ` [PATCH v5 1/3] ring: fix unmatched type definition and usage Jie Hai
2023-05-09 6:23 ` Ruifeng Wang
2023-05-09 8:15 ` Jie Hai
2023-05-09 1:29 ` [PATCH v5 2/3] ring: add telemetry cmd to list rings Jie Hai
2023-05-09 1:29 ` [PATCH v5 3/3] ring: add telemetry cmd for ring info Jie Hai
2023-05-09 6:50 ` Morten Brørup
2023-05-09 9:24 ` [PATCH v6 0/3] add telemetry cmds for ring Jie Hai
2023-05-09 9:24 ` [PATCH v6 1/3] ring: fix unmatched type definition and usage Jie Hai
2023-05-09 9:24 ` [PATCH v6 2/3] ring: add telemetry cmd to list rings Jie Hai
2023-05-09 9:24 ` [PATCH v6 3/3] ring: add telemetry cmd for ring info Jie Hai
2023-05-30 9:27 ` [PATCH v6 0/3] add telemetry cmds for ring Jie Hai
2023-06-12 14:54 ` Thomas Monjalon
2023-10-28 9:48 ` Jie Hai
2023-07-04 9:04 ` [PATCH v7 " Jie Hai
2023-07-04 9:04 ` [PATCH v7 1/3] ring: fix unmatched type definition and usage Jie Hai
2023-07-04 9:04 ` [PATCH v7 2/3] ring: add telemetry cmd to list rings Jie Hai
2023-07-04 9:04 ` [PATCH v7 3/3] ring: add telemetry cmd for ring info Jie Hai
2023-08-18 6:53 ` [PATCH v7 0/3] add telemetry cmds for ring Jie Hai
2023-09-12 1:52 ` Jie Hai
2023-10-10 2:25 ` Jie Hai
2023-10-25 1:22 ` Jie Hai
2023-10-28 9:50 ` Jie Hai
2023-11-08 2:55 ` lihuisong (C)
2023-11-09 10:20 ` [RESEND " Jie Hai
2023-11-09 10:20 ` [RESEND v7 1/3] ring: fix unmatched type definition and usage Jie Hai
2023-11-09 12:26 ` lihuisong (C)
2024-02-18 18:11 ` Thomas Monjalon
2024-02-19 8:24 ` Jie Hai
2023-11-09 10:20 ` [RESEND v7 2/3] ring: add telemetry cmd to list rings Jie Hai
2023-11-09 12:26 ` lihuisong (C)
2023-11-09 10:20 ` [RESEND v7 3/3] ring: add telemetry cmd for ring info Jie Hai
2023-11-09 12:27 ` lihuisong (C)
2024-01-27 8:33 ` [RESEND v7 0/3] add telemetry cmds for ring Jie Hai
2024-02-19 8:32 ` [PATCH v8 0/2] " Jie Hai
2024-02-19 8:32 ` [PATCH v8 1/2] ring: add telemetry cmd to list rings Jie Hai
2024-02-19 8:32 ` [PATCH v8 2/2] ring: add telemetry cmd for ring info Jie Hai
2024-02-19 10:09 ` [PATCH v8 0/2] add telemetry cmds for ring Thomas Monjalon
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=aad48381-1790-f023-3ff1-f6f20f0bec1d@huawei.com \
--to=haijie1@huawei.com \
--cc=dev@dpdk.org \
--cc=honnappa.nagarahalli@arm.com \
--cc=konstantin.v.ananyev@yandex.ru \
--cc=liudongdong3@huawei.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).