[dpdk-dev] [PATCH v5 3/5] bus: introduce new log type for bus drivers

[Shreyansh Jain]

Hello Jianfeng,

On Monday 09 October 2017 04:57 PM, Jianfeng Tan wrote:
> Introduce a new log type, RTE_LOGTYPE_BUS, for bus drivers. And
> change fslmc to use this type for logging.
> 
> Suggested-by: Gaetan Rivet <gaetan.rivet at 6wind.com>
> Signed-off-by: Jianfeng Tan <jianfeng.tan at intel.com>
> ---
>   drivers/bus/fslmc/fslmc_bus.c           |  9 +++----
>   drivers/bus/fslmc/fslmc_logs.h          | 42 ++++-----------------------------
>   drivers/bus/fslmc/fslmc_vfio.c          |  4 +---
>   lib/librte_eal/common/eal_common_log.c  |  1 +
>   lib/librte_eal/common/include/rte_log.h |  1 +
>   5 files changed, 11 insertions(+), 46 deletions(-)
> 
> diff --git a/drivers/bus/fslmc/fslmc_bus.c b/drivers/bus/fslmc/fslmc_bus.c
> index 0a8229f..236ec3a 100644
> --- a/drivers/bus/fslmc/fslmc_bus.c
> +++ b/drivers/bus/fslmc/fslmc_bus.c
> @@ -34,7 +34,6 @@
>   #include <dirent.h>
>   #include <stdbool.h>
>   
> -#include <rte_log.h>
>   #include <rte_bus.h>
>   #include <rte_eal_memconfig.h>
>   #include <rte_malloc.h>
> @@ -42,11 +41,9 @@
>   #include <rte_memcpy.h>
>   #include <rte_ethdev.h>
>   
> -#include <rte_fslmc.h>
> -#include <fslmc_vfio.h>
> -
> -#define FSLMC_BUS_LOG(level, fmt, args...) \
> -	RTE_LOG(level, EAL, fmt "\n", ##args)
> +#include "rte_fslmc.h"
> +#include "fslmc_vfio.h"
> +#include "fslmc_logs.h"
>   
>   #define VFIO_IOMMU_GROUP_PATH "/sys/kernel/iommu_groups"
>   
> diff --git a/drivers/bus/fslmc/fslmc_logs.h b/drivers/bus/fslmc/fslmc_logs.h
> index 1f7c24b..dbf2281 100644
> --- a/drivers/bus/fslmc/fslmc_logs.h
> +++ b/drivers/bus/fslmc/fslmc_logs.h
> @@ -33,44 +33,12 @@
>   #ifndef _FSLMC_LOGS_H_
>   #define _FSLMC_LOGS_H_
>   
> -#define PMD_INIT_LOG(level, fmt, args...) \
> -	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ##args)
> +#include <rte_log.h>
>   
> -#ifdef RTE_LIBRTE_DPAA2_DEBUG_INIT
> -#define PMD_INIT_FUNC_TRACE() PMD_INIT_LOG(DEBUG, " >>")
> -#else
> -#define PMD_INIT_FUNC_TRACE() do { } while (0)
> -#endif
> +#define FSLMC_BUS_LOG(level, fmt, args...) \
> +	RTE_LOG(level, BUS, "%s(): " fmt "\n", __func__, ##args)
>   
> -#ifdef RTE_LIBRTE_DPAA2_DEBUG_RX
> -#define PMD_RX_LOG(level, fmt, args...) \
> -	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
> -#else
> -#define PMD_RX_LOG(level, fmt, args...) do { } while (0)
> -#endif
> -
> -#ifdef RTE_LIBRTE_DPAA2_DEBUG_TX
> -#define PMD_TX_LOG(level, fmt, args...) \
> -	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
> -#else
> -#define PMD_TX_LOG(level, fmt, args...) do { } while (0)
> -#endif
> -
> -#ifdef RTE_LIBRTE_DPAA2_DEBUG_TX_FREE
> -#define PMD_TX_FREE_LOG(level, fmt, args...) \
> -	RTE_LOG(level, PMD, "%s(): " fmt "\n", __func__, ## args)
> -#else
> -#define PMD_TX_FREE_LOG(level, fmt, args...) do { } while (0)
> -#endif
> -
> -#ifdef RTE_LIBRTE_DPAA2_DEBUG_DRIVER
> -#define PMD_DRV_LOG_RAW(level, fmt, args...) \
> -	RTE_LOG(level, PMD, "%s(): " fmt, __func__, ## args)
> -#else
> -#define PMD_DRV_LOG_RAW(level, fmt, args...) do { } while (0)
> -#endif
> -
> -#define PMD_DRV_LOG(level, fmt, args...) \
> -	PMD_DRV_LOG_RAW(level, fmt "\n", ## args)
> +#define FSLMC_VFIO_LOG(level, fmt, args...) \
> +	RTE_LOG(level, EAL, "%s(): " fmt "\n", __func__, ##args)

This change breaks the FSLMC bus driver. There are macros like 
PMD_DRV_LOG which are still in use in the code.
Before removing the above, those would have to be restructured.

I am already working on converting this logging into dynamic logging.
Can you skip this work until then? Does it block your work?

>   
>   #endif /* _FSLMC_LOGS_H_ */

<snip>