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From: David Marchand <david.marchand@redhat.com>
To: Sunil Kumar Kori <skori@marvell.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	Jerin Jacob Kollanukkaran <jerinj@marvell.com>
Subject: Re: [dpdk-dev] [EXT] [PATCH v2 2/4] trace: remove size limit on CTF event description
Date: Thu, 29 Oct 2020 09:51:46 +0100
Message-ID: <CAJFAV8wO2s7iqivv4xV3b9ohKnJpcKtuttCoYcEd_PoGiEUyxg@mail.gmail.com> (raw)
In-Reply-To: <CY4PR18MB1622AC182F098150777CFB35B4140@CY4PR18MB1622.namprd18.prod.outlook.com>

On Thu, Oct 29, 2020 at 9:41 AM Sunil Kumar Kori <skori@marvell.com> wrote:
> >@@ -505,15 +504,11 @@ __rte_trace_point_register(rte_trace_point_t
> >*handle, const char *name,
> >               goto free;
> >       }
> >
> >-      /* Copy the field data for future use */
> >-      if (rte_strscpy(tp->ctf_field, field, TRACE_CTF_FIELD_SIZE) < 0) {
> >-              trace_err("CTF field size is too long");
> >-              rte_errno = E2BIG;
> >-              goto free;
> >-      }
> >-
> >-      /* Clear field memory for the next event */
> >-      memset(field, 0, TRACE_CTF_FIELD_SIZE);
> >+      /* Copy the accumulated fields description and clear it for the next
> >+       * trace point.
> >+       */
> >+      tp->ctf_field = RTE_PER_LCORE(ctf_field);
> >+      RTE_PER_LCORE(ctf_field) = NULL;
>
> Although patch looks okay but I have one that how "tp->ctf_field" is populated because during
> registration time RTE_PER_LCORE(ctf_field) will be NULL. So "tp->ctf_field" will always be NULL.

Sorry, I don't understand your comment.
RTE_PER_LCORE(ctf_field) is filled at __rte_trace_point_emit_field.


-- 
David Marchand


  reply	other threads:[~2020-10-29  8:52 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-23  8:00 [dpdk-dev] [PATCH 0/3] Rework CTF event description storage David Marchand
2020-10-23  8:00 ` [dpdk-dev] [PATCH 1/3] trace: fixup CTF event description at registration David Marchand
2020-10-23  8:00 ` [dpdk-dev] [PATCH 2/3] trace: remove size limit on CTF event description David Marchand
2020-10-28  9:06   ` Jerin Jacob
2020-10-23  8:00 ` [dpdk-dev] [PATCH 3/3] trace: make CTF metadata prettier David Marchand
2020-10-27 19:43 ` [dpdk-dev] [PATCH 0/3] Rework CTF event description storage David Marchand
2020-10-28  8:52   ` Jerin Jacob
2020-10-28 13:09     ` David Marchand
2020-10-28 15:17       ` David Marchand
2020-10-28 15:59         ` David Marchand
2020-10-28 21:02 ` [dpdk-dev] [PATCH v2 0/4] " David Marchand
2020-10-28 21:02   ` [dpdk-dev] [PATCH v2 1/4] trace: fixup CTF event description at registration David Marchand
2020-10-29  8:35     ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-10-28 21:02   ` [dpdk-dev] [PATCH v2 2/4] trace: remove size limit on CTF event description David Marchand
2020-10-29  8:41     ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-10-29  8:51       ` David Marchand [this message]
2020-10-29  9:36         ` Sunil Kumar Kori
2020-10-29 10:02           ` David Marchand
2020-10-29 10:31             ` Sunil Kumar Kori
2020-10-28 21:02   ` [dpdk-dev] [PATCH v2 3/4] trace: fix metadata dump David Marchand
2020-10-29  8:36     ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-10-28 21:02   ` [dpdk-dev] [PATCH v2 4/4] trace: make CTF metadata prettier David Marchand
2020-10-29  8:37     ` [dpdk-dev] [EXT] " Sunil Kumar Kori
2020-10-29 21:50   ` [dpdk-dev] [PATCH v2 0/4] Rework CTF event description storage David Marchand

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