[v1,02/38] net/mvpp2: remove debug log on fast-path

  From: Liron Himi <lironh@marvell.com>

in case of non-ip frame the current code reached the 'default'
case which result with function call to log a msg.
those kind of calls should not be performed on fast-path.

The performance for this kind of frames increased by 50%

Fixes: acab7d58c ("net/mvpp2: convert to dynamic logging")
Cc: stable@dpdk.org

Signed-off-by: Liron Himi <lironh@marvell.com>
Reviewed-by: Liron Himi <lironh@marvell.com>
---
 drivers/net/mvpp2/mrvl_ethdev.c | 2 --
 1 file changed, 2 deletions(-)
  

Reviewed-by: Michael Shamis <michaelsh@marvell.com>

-----Original Message-----
From: dev <dev-bounces@dpdk.org> On Behalf Of lironh@marvell.com
Sent: Wednesday, December 2, 2020 12:12 PM
To: Jerin Jacob Kollanukkaran <jerinj@marvell.com>
Cc: dev@dpdk.org; Liron Himi <lironh@marvell.com>; stable@dpdk.org
Subject: [dpdk-dev] [PATCH v1 02/38] net/mvpp2: remove debug log on fast-path

From: Liron Himi <lironh@marvell.com>

in case of non-ip frame the current code reached the 'default'
case which result with function call to log a msg.
those kind of calls should not be performed on fast-path.

The performance for this kind of frames increased by 50%

Fixes: acab7d58c ("net/mvpp2: convert to dynamic logging")
Cc: stable@dpdk.org

Signed-off-by: Liron Himi <lironh@marvell.com>
Reviewed-by: Liron Himi <lironh@marvell.com>
---
 drivers/net/mvpp2/mrvl_ethdev.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/mvpp2/mrvl_ethdev.c b/drivers/net/mvpp2/mrvl_ethdev.c index 93fb30cdb..8c3278ec4 100644
--- a/drivers/net/mvpp2/mrvl_ethdev.c
+++ b/drivers/net/mvpp2/mrvl_ethdev.c
@@ -2171,7 +2171,6 @@ mrvl_desc_to_packet_type_and_offset(struct pp2_ppio_desc *desc,
 		*l4_offset = *l3_offset + MRVL_ARP_LENGTH;
 		break;
 	default:
-		MRVL_LOG(DEBUG, "Failed to recognise l3 packet type");
 		break;
 	}
 
@@ -2183,7 +2182,6 @@ mrvl_desc_to_packet_type_and_offset(struct pp2_ppio_desc *desc,
 		packet_type |= RTE_PTYPE_L4_UDP;
 		break;
 	default:
-		MRVL_LOG(DEBUG, "Failed to recognise l4 packet type");
 		break;
 	}
 
--
2.28.0
  

On Wed, Dec 2, 2020 at 3:42 PM <lironh@marvell.com> wrote:
>
> From: Liron Himi <lironh@marvell.com>
>
> in case of non-ip frame the current code reached the 'default'

In case of

> case which result with function call to log a msg.
> those kind of calls should not be performed on fast-path.
>
> The performance for this kind of frames increased by 50%
>
> Fixes: acab7d58c ("net/mvpp2: convert to dynamic logging")
> Cc: stable@dpdk.org
>
> Signed-off-by: Liron Himi <lironh@marvell.com>
> Reviewed-by: Liron Himi <lironh@marvell.com>

Please remove the Reviewed-by if you have Signed-off,

> ---
>  drivers/net/mvpp2/mrvl_ethdev.c | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/drivers/net/mvpp2/mrvl_ethdev.c b/drivers/net/mvpp2/mrvl_ethdev.c
> index 93fb30cdb..8c3278ec4 100644
> --- a/drivers/net/mvpp2/mrvl_ethdev.c
> +++ b/drivers/net/mvpp2/mrvl_ethdev.c
> @@ -2171,7 +2171,6 @@ mrvl_desc_to_packet_type_and_offset(struct pp2_ppio_desc *desc,
>                 *l4_offset = *l3_offset + MRVL_ARP_LENGTH;
>                 break;
>         default:
> -               MRVL_LOG(DEBUG, "Failed to recognise l3 packet type");
>                 break;
>         }
>
> @@ -2183,7 +2182,6 @@ mrvl_desc_to_packet_type_and_offset(struct pp2_ppio_desc *desc,
>                 packet_type |= RTE_PTYPE_L4_UDP;
>                 break;
>         default:
> -               MRVL_LOG(DEBUG, "Failed to recognise l4 packet type");

There are other prints in fastpath such as
"MRVL_LOG(ERR, "Failed to receive packets");", please remove those as well.


>                 break;
>         }
>
> --
> 2.28.0
>