[PATCH] net/ice: fix statistics

[PATCH] net/ice: fix statistics

[Mingjin Ye]

When the stats_get api is called for the first time in pmd, the offset
of the stats register is not recorded. That results in all the obtained
count values being 0.

This patch adds reset statistics before dev_init returning. That avoids
some noise being counted.

Fixes: 12443386a0b0 ("net/ice: support flex Rx descriptor RxDID22")
Cc: stable@dpdk.org

Signed-off-by: Mingjin Ye <mingjinx.ye@intel.com>
---
 drivers/net/ice/ice_ethdev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 9a88cf9796..1116880485 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -2440,6 +2440,9 @@ ice_dev_init(struct rte_eth_dev *dev)
 
 	pf->supported_rxdid = ice_get_supported_rxdid(hw);
 
+	/* reset all stats of the device, including pf and main vsi */
+	ice_stats_reset(dev);
+
 	return 0;
 
 err_flow_init:
-- 
2.25.1

RE: [PATCH] net/ice: fix statistics

[Zhang, Qi Z]

> -----Original Message-----
> From: Ye, MingjinX <mingjinx.ye@intel.com>
> Sent: Thursday, May 11, 2023 10:11 AM
> To: dev@dpdk.org
> Cc: Yang, Qiming <qiming.yang@intel.com>; stable@dpdk.org; Zhou, YidingX
> <yidingx.zhou@intel.com>; Ye, MingjinX <mingjinx.ye@intel.com>; Zhang, Qi
> Z <qi.z.zhang@intel.com>
> Subject: [PATCH] net/ice: fix statistics
> 
> When the stats_get api is called for the first time in pmd, the offset of the
> stats register is not recorded. That results in all the obtained count values
> being 0.
> 
> This patch adds reset statistics before dev_init returning. That avoids some
> noise being counted.
> 
> Fixes: 12443386a0b0 ("net/ice: support flex Rx descriptor RxDID22")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Mingjin Ye <mingjinx.ye@intel.com>

Acked-by: Qi Zhang <qi.z.zhang@intel.com>

Applied to dpdk-next-net-intel.

Thanks
Qi