On 05.12.2018 22:32, David Miller wrote:
> From: Anssi Hannula
> Date: Fri, 30 Nov 2018 20:21:35 +0200
>
>> @@ -682,6 +682,11 @@ static void macb_set_addr(struct macb *bp, struct
>> macb_dma_desc *desc, dma_addr_
>> if (bp->hw_dma_cap & HW_DMA_CAP_64B) {
>> desc_64 =
Hi Anssi,
On 05.12.2018 16:00, Anssi Hannula wrote:
> On 5.12.2018 14:37, claudiu.bez...@microchip.com wrote:
>>
>> On 30.11.2018 20:21, Anssi Hannula wrote:
>>> When reading buffer descriptors on RX or on TX completion, an
>>> RX_USED/TX_USED bit is checked first to ensure that the descriptor
On 30.11.2018 20:21, Anssi Hannula wrote:
> Bit RX_USED set to 0 in the address field allows the controller to write
> data to the receive buffer descriptor.
>
> The driver does not ensure the ctrl field is ready (cleared) when the
> controller sees the RX_USED=0 written by the driver. The ctrl
On 30.11.2018 20:21, Anssi Hannula wrote:
> When reading buffer descriptors on RX or on TX completion, an
> RX_USED/TX_USED bit is checked first to ensure that the descriptor has
> been populated. However, there are no memory barriers to ensure that the
> data protected by the RX_USED/TX_USED
Hi Anssi,
Few comments... Otherwise I tested this series on a SAMA5D2 Xplained and
SAMA5D4 Xplained under heavy traffic and it seems to behave OK.
Thank you,
Claudiu Beznea
On 30.11.2018 20:21, Anssi Hannula wrote:
> 64-bit DMA addresses are split in upper and lower halves that are
> written in
On 30.10.2018 21:36, Tristram Ha - C24268 wrote:
>> Could you check on your side that applying this on top of your patch, your
>> scenario is still working?
>>
>> diff --git a/drivers/net/ethernet/cadence/macb_main.c
>> b/drivers/net/ethernet/cadence/macb_main.c
>> index
On 29.10.2018 23:40, Tristram Ha - C24268 wrote:
>> Could you, please, tell me if the above variable was false in your case?
>>
>> bool cloned = skb_cloned(*skb) || skb_header_cloned(*skb);
>>
>> If yes, then, the proper fix would be as follows:
>>
>> diff --git
Hi Tristram,
Could you, please, tell me if the above variable was false in your case?
bool cloned = skb_cloned(*skb) || skb_header_cloned(*skb);
If yes, then, the proper fix would be as follows:
diff --git a/drivers/net/ethernet/cadence/macb_main.c
b/drivers/net/ethernet/cadence/macb_main.c
