[dpdk-stable] [dpdk-dev] [v8] net/e1000: fix i219 hang on reset/close

[Zhang, Qi Z]

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Xiao Zhang
> Sent: Monday, July 22, 2019 11:12 PM
> To: dev at dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu at intel.com>; Zhao1, Wei
> <wei.zhao1 at intel.com>; Ye, Xiaolong <xiaolong.ye at intel.com>; Zhang, Xiao
> <xiao.zhang at intel.com>; stable at dpdk.org
> Subject: [dpdk-dev] [v8] net/e1000: fix i219 hang on reset/close
> 
> Unit hang may occur if multiple descriptors are available in the rings during
> reset or close. This state can be detected by configure status by bit 8 in
> register. If the bit is set and there are pending descriptors in one of the rings,
> we must flush them before reset or close.
> 
> Fixes: 80580344("e1000: support EM devices (also known as e1000/e1000e)")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Xiao Zhang <xiao.zhang at intel.com>

Reviewed-by: Xiaolong Ye <xiaolong.ye at intel.com>

Applied to dpdk-next-net-intel

Thanks
Qi