Re: [dpdk-dev] [PATCH 3/3] logs: remove log level config option

[Pavan Nikhilesh Bhagavatula <pbhagavatula@caviumnetworks.com>]

Hi Oliver,

Thanks for the review.

On Thu, Dec 07, 2017 at 02:21:21PM +0100, Olivier MATZ wrote:
> On Wed, Nov 22, 2017 at 02:58:06PM +0530, Pavan Nikhilesh wrote:
> > Remove RTE_LOG_LEVEL config option, use existing RTE_LOG_DP_LEVEL config
> > option for controlling datapath log level.
> > RTE_LOG_LEVEL is no longer needed as dynamic logging can be used to
> > control global and module specific log levels.
> >
> > Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
>
> Tome, removing the RTE_LOG_LEVEL goes in the good direction (less
> compile-time options).
>
> [...]
>
> > --- a/drivers/net/ena/base/ena_plat_dpdk.h
> > +++ b/drivers/net/ena/base/ena_plat_dpdk.h
> > @@ -96,7 +96,7 @@ typedef uint64_t dma_addr_t;
> >  #define ENA_GET_SYSTEM_USECS()						\
> >  	(rte_get_timer_cycles() * US_PER_S / rte_get_timer_hz())
> >
> > -#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
> > +#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
> >  #define ENA_ASSERT(cond, format, arg...)				\
> >  	do {								\
> >  		if (unlikely(!(cond))) {				\
> > diff --git a/drivers/net/sfc/sfc_debug.h b/drivers/net/sfc/sfc_debug.h
> > index 92eba9c38..3f9ccf1e6 100644
> > --- a/drivers/net/sfc/sfc_debug.h
> > +++ b/drivers/net/sfc/sfc_debug.h
> > @@ -35,7 +35,7 @@
> >  #include <rte_debug.h>
> >
> >  #ifdef RTE_LIBRTE_SFC_EFX_DEBUG
> > -/* Avoid dependency from RTE_LOG_LEVEL to be able to enable debug check
> > +/* Avoid dependency from RTE_LOG_DP_LEVEL to be able to enable debug check
> >   * in the driver only.
> >   */
> >  #define SFC_ASSERT(exp)			RTE_VERIFY(exp)
> > diff --git a/examples/l3fwd-acl/main.c b/examples/l3fwd-acl/main.c
> > index e50b1a1a8..eb78decdd 100644
> > --- a/examples/l3fwd-acl/main.c
> > +++ b/examples/l3fwd-acl/main.c
> > @@ -68,7 +68,7 @@
> >  #include <rte_string_fns.h>
> >  #include <rte_acl.h>
> >
> > -#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
> > +#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
> >  #define L3FWDACL_DEBUG
> >  #endif
> >  #define DO_RFC_1812_CHECKS
> > diff --git a/test/test/test.h b/test/test/test.h
> > index 08ffe949c..8fdb3045e 100644
> > --- a/test/test/test.h
> > +++ b/test/test/test.h
> > @@ -204,7 +204,7 @@ struct unit_test_case {
> >
> >  #define TEST_CASES_END() { NULL, NULL, NULL, NULL, 0 }
> >
> > -#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
> > +#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
> >  #define TEST_HEXDUMP(file, title, buf, len) rte_hexdump(file, title, buf, len)
> >  #else
> >  #define TEST_HEXDUMP(file, title, buf, len) do {} while (0)
>
> For drivers, it looks correct to replace RTE_LOG_LEVEL by
> RTE_LOG_DP_LEVEL, from what I see it's about dataplane logs.
>
> For l3fwd, I'm less sure, but it could make sense too.
>
> For test, I think we should replace TEST_HEXDUMP() by a function
> that checks the runtime log level instead of relying on RTE_LOG_DP_LEVEL.
> I can submit a patch for this.

Agreed.

Pavan

>
> Olivier