> It is recommended to disable the "SPH feature" by default unless some > certain cases depend on it. Like Ido said, two large buffers being > allocated from the same page pool for each packet, this is a huge waste > of memory, and brings performance drops for most of general cases. I don't know this driver, but it looks like SPH is required for NETIF_F_GRO? Can you add this flag to hw_features, but not wanted_features and leave SPH disabled until ethtool is used to enable GRO? Are there other use cases where SPH is needed? Andrew