On 10/15, Mina Almasry wrote: > Set a 64-bit DMA mask on nsim_bus_dev, enable NETMEM_TX_DMA on the > netdevsim net_device, and configure page_pool instances with > PP_FLAG_ALLOW_UNREADABLE_NETMEM and queue_idx, plus PP_FLAG_DMA_MAP | > PP_FLAG_DMA_SYNC_DEV when CONFIG_HAS_DMA is set, so devmem bind-rx and > bind-tx netlink operations can be tested against netdevsim in software > selftests. > > The pp_hold debugfs file allocates pages from the queue 0 page pool, so > refuse it when that pool is backed by a memory provider, and take the > netdev instance lock there so a concurrent bind-rx cannot swap the pool > in between. The software PSP path checksums the payload when the peer > does not decapsulate, so drop unreadable skbs there. > > Cc: Tariq Toukan <[email protected]> > Cc: Kaifeng Wang <[email protected]> > Assisted-by: LLM > Signed-off-by: Mina Almasry <[email protected]> > Reviewed-by: Dragos Tatulea <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
