On Tue, 18 Jun 2024 18:15:16 -0700, Jakub Kicinski <kuba@xxxxxxxxxx> wrote: > On Tue, 18 Jun 2024 11:09:02 +0800 Heng Qi wrote: > > > (Should we manually do checksum if RXCUSM is disabled?) > > > > > > > Currently we do not allow RXCUSM to be disabled. > > You don't have to disable checksuming in the device. Yes, it is up to the device itself to decide whether to validate checksum. What I mean is that we don't allow users to disable the driver's NETIF_F_RXCSUM flag. > Just ignore VIRTIO_NET_HDR_F_DATA_VALID if user cleared NETIF_F_RXCSUM. Right. Thanks. > I know some paranoid workloads which do actually want the kernel to > calculate the checksum. >
