[PATCH net-next v3 1/4] net: stmmac: Switch to zero-copy in non-XDP RX path
Andrew Lunn
andrew at lunn.ch
Sat Jan 25 11:08:12 PST 2025
> 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
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