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Subject: Re: [PATCH v2 1/2] usb: dwc2: alloc dma aligned buffer for isoc split
in
Hi,
On Wed, May 2, 2018 at 10:14 AM, wlf <w...@rock-chips.com> wrote:
It's a good way to allocate an extra 3
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Subject: Re: [PATCH v2 1/2] usb: dwc2: alloc dma aligned
Hi,
On Wed, May 2, 2018 at 10:14 AM, wlf wrote:
> It's a good way to allocate an extra 3 bytes in the original bounce buffer
> for this unaligned
> issue, it's similar to the tailroom of sk_buff. However, just as you said,
> we'd better find
> the special cases where we need
Hi,
On Wed, May 2, 2018 at 10:14 AM, wlf wrote:
> It's a good way to allocate an extra 3 bytes in the original bounce buffer
> for this unaligned
> issue, it's similar to the tailroom of sk_buff. However, just as you said,
> we'd better find
> the special cases where we need an oversized bounce
Dear Doug,
在 2018年05月02日 12:33, Doug Anderson 写道:
Hi,
On Tue, May 1, 2018 at 8:04 PM, William Wu wrote:
The commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in
a more supported way") rips out a lot of code to simply the
allocation of aligned DMA. However, it
Dear Doug,
在 2018年05月02日 12:33, Doug Anderson 写道:
Hi,
On Tue, May 1, 2018 at 8:04 PM, William Wu wrote:
The commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in
a more supported way") rips out a lot of code to simply the
allocation of aligned DMA. However, it also introduces a new
Hi,
On Tue, May 1, 2018 at 8:04 PM, William Wu wrote:
> The commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in
> a more supported way") rips out a lot of code to simply the
> allocation of aligned DMA. However, it also introduces a new
> issue when use isoc
Hi,
On Tue, May 1, 2018 at 8:04 PM, William Wu wrote:
> The commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in
> a more supported way") rips out a lot of code to simply the
> allocation of aligned DMA. However, it also introduces a new
> issue when use isoc split in transfer.
>
> In my
The commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in
a more supported way") rips out a lot of code to simply the
allocation of aligned DMA. However, it also introduces a new
issue when use isoc split in transfer.
In my test case, I connect the dwc2 controller with an usb hs
Hub
The commit 3bc04e28a030 ("usb: dwc2: host: Get aligned DMA in
a more supported way") rips out a lot of code to simply the
allocation of aligned DMA. However, it also introduces a new
issue when use isoc split in transfer.
In my test case, I connect the dwc2 controller with an usb hs
Hub
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