On 2020/7/23 下午6:36, Peter Maydell wrote:
On Wed, 22 Jul 2020 at 10:00, Jason Wang wrote:
In loopback mode, e1000e RX can DMA into TX doorbell which requires
TX to be reentrant. This patch make e1000e's TX routine reentrant by
introducing a per device boolean for recording whether or not a TX
On Thu, Jul 23, 2020 at 10:25:35AM +0800, Jason Wang wrote:
>
> On 2020/7/22 下午8:53, Michael Tokarev wrote:
> > FWIW, this is not "making TX reentrant", it is about forbidding
> > reentrancy instead :)
> >
> > /mjt
>
>
> Indeed, I will rename the title.
Please also include a comment explaining
On Wed, 22 Jul 2020 at 10:00, Jason Wang wrote:
>
> In loopback mode, e1000e RX can DMA into TX doorbell which requires
> TX to be reentrant. This patch make e1000e's TX routine reentrant by
> introducing a per device boolean for recording whether or not a TX
> rountine is being called and return
On 2020/7/22 下午8:53, Michael Tokarev wrote:
FWIW, this is not "making TX reentrant", it is about forbidding
reentrancy instead :)
/mjt
Indeed, I will rename the title.
Thanks
On 2020/7/22 下午7:24, Li Qiang wrote:
Jason Wang 于2020年7月22日周三 下午4:58写道：
In loopback mode, e1000e RX can DMA into TX doorbell which requires
TX to be reentrant. This patch make e1000e's TX routine reentrant by
introducing a per device boolean for recording whether or not a TX
rountine is being
FWIW, this is not "making TX reentrant", it is about forbidding
reentrancy instead :)
/mjt
Jason Wang 于2020年7月22日周三 下午4:58写道：
>
> In loopback mode, e1000e RX can DMA into TX doorbell which requires
> TX to be reentrant. This patch make e1000e's TX routine reentrant by
> introducing a per device boolean for recording whether or not a TX
> rountine is being called and return early.
>
Cou
In loopback mode, e1000e RX can DMA into TX doorbell which requires
TX to be reentrant. This patch make e1000e's TX routine reentrant by
introducing a per device boolean for recording whether or not a TX
rountine is being called and return early.
Signed-off-by: Jason Wang
---
hw/net/e1000e_core.
