[dpdk-stable] [dpdk-dev] [PATCH v4] net/ixgbe: fix flow ctrl mode setting

[Zhao1, Wei]

Hi, guinan

 In this patch, you have add a new parameter of mac_ctrl_frame_fwd, it should not be clear in ixgbe_dev_stop(),
Or it will be over write when do port reset, and also you should add mac_ctrl_frame_fwd in ixgbe_flow_ctrl_get() for FC info get.
Although this patch has been merged, please commit fix patch for it, thanks!



> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Guinan Sun
> Sent: Tuesday, February 18, 2020 11:40 AM
> To: dev at dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu at intel.com>; Yang, Qiming
> <qiming.yang at intel.com>; Zhang, Qi Z <qi.z.zhang at intel.com>; Sun, GuinanX
> <guinanx.sun at intel.com>; stable at dpdk.org
> Subject: [dpdk-dev] [PATCH v4] net/ixgbe: fix flow ctrl mode setting
> 
> When the port starts, the hw register is reset first, and then the required
> parameters are set again.
> If the parameters to be used are not set after resetting the register, a read
> register error will occur. This patch is used to fix the problem.
> 
> Fixes: af75078fece3 ("first public release")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Guinan Sun <guinanx.sun at intel.com>
> ---
> v4: changes
> * rebase to dpdk-next-net-intel
> 
> v3: changes
> * wrap duplication code into a function
> * Modify checkpatch warnings
> 
> v2: changes
> * Modify the initial value of requested_mode and current_mode
> ---
>  drivers/net/ixgbe/ixgbe_ethdev.c | 76 +++++++++++++++++++++-----------
> drivers/net/ixgbe/ixgbe_ethdev.h |  1 +
>  2 files changed, 51 insertions(+), 26 deletions(-)
> 
> diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> b/drivers/net/ixgbe/ixgbe_ethdev.c
> index 3aab24e82..08b4cc689 100644
> --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> +	}
> +
>  	err = ixgbe_dev_rxtx_start(dev);
>  	if (err < 0) {
>  		PMD_INIT_LOG(ERR, "Unable to start rxtx queues"); @@ -2900,6
> +2939,8 @@ ixgbe_dev_stop(struct rte_eth_dev *dev)
> 
>  	adapter->rss_reta_updated = 0;
> 
> +	adapter->mac_ctrl_frame_fwd = 0;
> +

Delete it please.