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From: Shreyansh Jain <shreyansh.jain@nxp.com>
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Subject: Re: [dpdk-dev] [PATCH 3/7] net/dpaa2: change into dynamic logging
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On 3/12/2018 4:34 PM, Ferruh Yigit wrote:
> On 3/12/2018 9:25 AM, Shreyansh Jain wrote:
>> Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
>
> <...>
>
>> @@ -188,11 +188,6 @@ CONFIG_RTE_LIBRTE_DPAA2_USE_PHYS_IOVA=y
>> # Compile burst-oriented NXP DPAA2 PMD driver
>> #
>> CONFIG_RTE_LIBRTE_DPAA2_PMD=n
>> -CONFIG_RTE_LIBRTE_DPAA2_DEBUG_INIT=n
>> -CONFIG_RTE_LIBRTE_DPAA2_DEBUG_DRIVER=n
>> -CONFIG_RTE_LIBRTE_DPAA2_DEBUG_RX=n
>> -CONFIG_RTE_LIBRTE_DPAA2_DEBUG_TX=n
>> -CONFIG_RTE_LIBRTE_DPAA2_DEBUG_TX_FREE=n
>
> Just to double check, are you sure to remove data path logging config options
> too (RX, TX, TX_FREE)?
Yes, I have removed all conditional compilations.
Some more context below.
>
> <...>
>
>> @@ -557,6 +536,27 @@ for details.
>> Done
>> testpmd>
>>
>> +Enabling logs
>> +-------------
>> +
>> +For enabling logging for DPAA2 PMD, following log-level prefix can be used:
>> +
>> + .. code-block:: console
>> +
>> + <dpdk app> <EAL args> --log-level=bus.fslmc,<level> -- ...
>> +
>> +Using ``bus.fslmc`` as log matching criteria, all FSLMC bus logs can be enabled
>> +which are lower than logging ``level``.
>> +
>> + Or
>> +
>> + .. code-block:: console
>> +
>> + <dpdk app> <EAL args> --log-level=pmd.dpaa2,<level> -- ...
>
> Reminder, this will be also effected from naming change (pmd.net.dpaa2)
Ah, I think I completely forgot about that naming convention proposal.
>
> <...>
>
>> @@ -2045,3 +2046,12 @@ static struct rte_dpaa2_driver rte_dpaa2_pmd = {
>> };
>>
>> RTE_PMD_REGISTER_DPAA2(net_dpaa2, rte_dpaa2_pmd);
>> +
>> +RTE_INIT(dpaa2_pmd_init_log);
>> +static void
>> +dpaa2_pmd_init_log(void)
>> +{
>> + dpaa2_logtype_pmd = rte_log_register("pmd.dpaa2");
>
> After commit [1] naming changed to "pmd.net.dpaa2"
>
> [1]
> Commit: 7db274b9ada2 ("doc: describe dynamic logging format")
I will replace the net/eventdev/crypto registration strings
>
> <...>
>
>> +/* DP Logs, toggled out at compile time if level lower than current level */
>> +#define DPAA2_PMD_DP_LOG(level, fmt, args...) \
>> + RTE_LOG_DP(level, PMD, fmt, ## args)
>> +
>> +#define DPAA2_PMD_DP_DEBUG(fmt, args...) \
>> + DPAA2_PMD_DP_LOG(DEBUG, fmt, ## args)
>> +#define DPAA2_PMD_DP_INFO(fmt, args...) \
>> + DPAA2_PMD_DP_LOG(INFO, fmt, ## args)
>> +#define DPAA2_PMD_DP_WARN(fmt, args...) \
>> + DPAA2_PMD_DP_LOG(WARNING, fmt, ## args)
>
> Just a reminder about using RTE_LOG_DP without config wrapper to disable them,
> not all code will be removed in compilation time, only ones with log_level >
> RTE_LOG_DP_LEVEL, so with default config DPAA2_PMD_DP_WARN() ones will not be
> removed.
> This can be OK or not based on your usage but this may effect your datapath.
I understand your point.
Only some selected locations have WARN in dpaa2 - and those cases are
non-ideal datapath.
Nevertheless, thanks for highlighting. While creating a v2 for above
registration string, I will re-consider this as well.
>
> <...>
>
Thanks for review.