RE: [PATCH 5/6] net: dwc_eth_qos: Invalidate RX packet DMA buffer

2020-04-06 Thread Patrick DELAUNAY
Hi Marek, > From: Marek Vasut > Sent: lundi 23 mars 2020 02:45 > > This patch prevents an issue where the RX packet might have been accessed by > the CPU, which now has cached data from the packet in the caches and possibly > various write buffers, and these data may be evicted from the caches i

Re: [PATCH 5/6] net: dwc_eth_qos: Invalidate RX packet DMA buffer

2020-03-23 Thread Ramon Fried
On Mon, Mar 23, 2020 at 3:45 AM Marek Vasut wrote: > > This patch prevents an issue where the RX packet might have been > accessed by the CPU, which now has cached data from the packet in > the caches and possibly various write buffers, and these data may > be evicted from the caches into the DRAM