On 10/10/2020 2:49 AM, Zhang, RobinX wrote:
Hi Ferruh

-----Original Message-----
From: Ferruh Yigit <ferruh.yi...@intel.com>
Sent: Thursday, October 8, 2020 11:06 PM
To: Zhang, RobinX <robinx.zh...@intel.com>; dev@dpdk.org
Cc: Xing, Beilei <beilei.x...@intel.com>; Wu, Jingjing
<jingjing...@intel.com>; Yang, Qiming <qiming.y...@intel.com>; Yang,
SteveX <stevex.y...@intel.com>
Subject: Re: [dpdk-dev] [PATCH 8/8] net/iavf: support check DD bit of a RX
descriptor

On 9/27/2020 8:26 AM, Robin Zhang wrote:
Add implementation of inline API rx_descriptor_done in iavf PMD.

Signed-off-by: Robin Zhang <robinx.zh...@intel.com>
---
   drivers/net/iavf/iavf_ethdev.c |  1 +
   drivers/net/iavf/iavf_rxtx.c   | 26 ++++++++++++++++++++++++++
   drivers/net/iavf/iavf_rxtx.h   |  1 +
   3 files changed, 28 insertions(+)

diff --git a/drivers/net/iavf/iavf_ethdev.c
b/drivers/net/iavf/iavf_ethdev.c index 836c09f58..b7a819a0e 100644
--- a/drivers/net/iavf/iavf_ethdev.c
+++ b/drivers/net/iavf/iavf_ethdev.c
@@ -1417,6 +1417,7 @@ iavf_dev_init(struct rte_eth_dev *eth_dev)
        /* assign ops func pointer */
        eth_dev->dev_ops = &iavf_eth_dev_ops;
        eth_dev->rx_queue_count = iavf_dev_rxq_count;
+       eth_dev->rx_descriptor_done = iavf_dev_rx_desc_done;
        eth_dev->rx_descriptor_status = iavf_dev_rx_desc_status;
        eth_dev->tx_descriptor_status = iavf_dev_tx_desc_status;

Hi Robin,

'rx_descriptor_done' dev_ops is deprecated, 'rx_descriptor_status' should
provide same information?

Is there a specific reason/need to implement 'rx_descriptor_done'? If not I
will drop this patch.

The purpose of this patch is keep same behavior between i40evf and iavf.

Refer to i40evf commit cbfc6111b5 in dpdk-next-net-intel, 'rx_descriptor_done' 
is moved to 'struct rte_eth_dev'.


I see, but for i40evf, the 'rx_descriptor_done' was already there and it will be removed in 21.11.

I think no need to add a deprecated feature. 'rte_eth_rx_descriptor_status' replaces it and it is already implemented in iavf.

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