From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <olivier.matz@6wind.com>
Received: from proxy.6wind.com (host.76.145.23.62.rev.coltfrance.com
 [62.23.145.76]) by dpdk.org (Postfix) with ESMTP id 2400B14EC
 for <dev@dpdk.org>; Mon,  6 Feb 2017 14:29:43 +0100 (CET)
Received: from glumotte.dev.6wind.com (unknown [10.16.0.195])
 by proxy.6wind.com (Postfix) with ESMTP id 5615624A17;
 Mon,  6 Feb 2017 14:29:38 +0100 (CET)
From: Olivier Matz <olivier.matz@6wind.com>
To: dev@dpdk.org,
	david.marchand@6wind.com
Date: Mon,  6 Feb 2017 14:29:08 +0100
Message-Id: <1486387756-16865-1-git-send-email-olivier.matz@6wind.com>
X-Mailer: git-send-email 2.8.1
Subject: [dpdk-dev] [RFC 0/8] eal: dynamic logs
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Mon, 06 Feb 2017 13:29:43 -0000

The objective of this RFC patchset is to introduce a framework to
support dynamic log types in EAL. It also provides one example of use
(in i40e).

Features:
- log types are identified by a string
- at registration, a uniq identifier is associated to a log type
- each log type can have its level changed dynamically
- extend command line parameters to set the log level of a specific
  type, or logs matching a regular expression
- keep compat with other legacy types (eal, malloc, ring, user*,
  etc... keep their hardcoded log type value)

At the end, when, we can expect that all non-dataplane logs are moved to
be dynamic, so we can enable/disable them at runtime, without
recompiling. Many debug options can probably be removed from
configuration:
  $ git grep DEBUG config/common_base | wc -l
  89

Comments are welcome!


Olivier Matz (8):
  eal: support dynamic log types
  eal: dump registered log types
  eal: change several log levels matching a regexp
  eal: change specific log levels at startup
  eal: deprecate log functions
  app/test: new command to dump log types
  app/testpmd: new command to dump log types
  net/i40e: use dynamic log type for control logs

 app/test-pmd/cmdline.c                          |   5 +-
 app/test/commands.c                             |   4 +-
 app/test/test_logs.c                            |  12 +-
 doc/guides/contributing/coding_style.rst        |  30 ++--
 drivers/net/i40e/i40e_ethdev.c                  |  18 +-
 drivers/net/i40e/i40e_fdir.c                    |   4 -
 drivers/net/i40e/i40e_logs.h                    |  17 +-
 examples/quota_watermark/qw/main.c              |   2 +-
 examples/quota_watermark/qwctl/qwctl.c          |   2 +-
 lib/librte_eal/bsdapp/eal/eal.c                 |   4 +-
 lib/librte_eal/bsdapp/eal/rte_eal_version.map   |   6 +
 lib/librte_eal/common/eal_common_log.c          | 219 +++++++++++++++++++++++-
 lib/librte_eal/common/eal_common_options.c      |  48 ++++--
 lib/librte_eal/common/include/rte_log.h         |  76 +++++++-
 lib/librte_eal/linuxapp/eal/eal.c               |   4 +-
 lib/librte_eal/linuxapp/eal/rte_eal_version.map |   6 +
 16 files changed, 394 insertions(+), 63 deletions(-)

-- 
2.8.1