On Wed, Jan 25, 2017 at 07:18:15PM +0300, Sergei Shtylyov wrote: > On 01/24/2017 09:21 PM, Simon Horman wrote: > > >From: Kazuya Mizuguchi <kazuya.mizuguchi.ks@xxxxxxxxxxx> > > > >"swiotlb buffer is full" errors occur after repeated initialisation of a > >device - f.e. suspend/resume or ip link set up/down. This is because memory > >mapped using dma_map_single() in ravb_ring_format() and ravb_start_xmit() > >is not released. Resolve this problem by unmapping descriptors when > >freeing rings. > > Could you look into the sh_eth driver which seems to have the same issue? Sure, I will check. > >Note, ravb_tx_free() is moved but not otherwise modified by this patch. > > This is not true anymore BTW. Thanks for noticing, I'll fix that. > >Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@xxxxxxxxxxx> > >[simon: reworked] > >Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx> > > MBR, Sergei >
