On 07/29/2013 01:39 PM, Vinod Koul wrote:
>> @@ -416,6 +418,7 @@ struct dma_async_tx_descriptor {
>> dma_cookie_t (*tx_submit)(struct dma_async_tx_descriptor *tx);
>> dma_async_tx_callback callback;
>> void *callback_param;
>> +unsigned int transfered;
> I think this should be do
On Mon, Jul 22, 2013 at 08:10:06PM +0200, Sebastian Andrzej Siewior wrote:
> In USB RX path it is possible that the we receive less bytes than
> requested. Take the following example:
> The driver for USB-to-UART submits an URB with 256 bytes in size and the
> dmaengine driver in turn programs a tr
On Thu, Jul 25, 2013 at 05:32:35PM +0200, Lars-Peter Clausen wrote:
> > I see. But it can't be reused before calling the callback if it is
> > going to call the callback, right?
> > So if this is a no-no, I'm left with an additional argument to the
> > complete callback?
>
> Hm, maybe using dmaeng
On 07/25/2013 05:12 PM, Sebastian Andrzej Siewior wrote:
> On 07/25/2013 04:57 PM, Lars-Peter Clausen wrote:
>> I'm not sure that this will work. Once you've submitted the descriptor it is
>> owned by the dmaengine driver and you are not allowed to dereference it
>> anymore since the dmaengine driv
On 07/25/2013 04:57 PM, Lars-Peter Clausen wrote:
> I'm not sure that this will work. Once you've submitted the descriptor it is
> owned by the dmaengine driver and you are not allowed to dereference it
> anymore since the dmaengine driver might free the memory at any time. You
> should only refere
On 07/22/2013 08:10 PM, Sebastian Andrzej Siewior wrote:
> In USB RX path it is possible that the we receive less bytes than
> requested. Take the following example:
> The driver for USB-to-UART submits an URB with 256 bytes in size and the
> dmaengine driver in turn programs a transfer of 256 byte
On 07/22/2013 08:52 PM, Sergei Shtylyov wrote:
>> @@ -416,6 +418,7 @@ struct dma_async_tx_descriptor {
>> dma_cookie_t (*tx_submit)(struct dma_async_tx_descriptor *tx);
>> dma_async_tx_callback callback;
>> void *callback_param;
>> +unsigned int transfered;
>
>Correct gra
On 07/22/2013 10:10 PM, Sebastian Andrzej Siewior wrote:
In USB RX path it is possible that the we receive less bytes than
requested. Take the following example:
The driver for USB-to-UART submits an URB with 256 bytes in size and the
dmaengine driver in turn programs a transfer of 256 bytes. Th
8 matches
Mail list logo
