On Tue, 2024-06-11 at 11:32 -0300, Fabio Estevam wrote: > Hi Johannes, > > I forgot to mention, but the Wifi device I am using is: > > Intel(R) Wi-Fi 6 AX200 160MHz, REV=0x340 > > On Tue, Jun 11, 2024 at 10:54 AM Johannes Berg > <johannes@xxxxxxxxxxxxxxxx> wrote: > > > > [ 5.038174] rxb->offset is 0 trans_pcie->rx_buf_bytes is 4096 > > > > so that looks pretty normal? > > > > Might be useful to see rx->page_dma too, supported_dma_mask should be > > 4095 or 2047 depending on the device, but I'm not sure how you could end > > up with a DMA mapping for a page that's not at least 11 bit aligned? > > Here it goes: > > [ 4.344218] rxb->offset is 0 trans_pcie->rx_buf_bytes is 4096 > rxb->page_dma is 4215433216 trans_pcie->supported_dma_mask is 4095 > I don't know what a typical rxb->page_dma should be. > It should be an address (so that's fine), but I don't see how it ends up not being page-aligned if we request to map a page and 4096 bytes?? Is that platform "weird" with strange page size, or something? johannes
