On Mon, 20 Nov 2023 13:56:08 -0700 Ahmed Zaki wrote: > u32 (*get_rxfh_key_size)(struct net_device *); > u32 (*get_rxfh_indir_size)(struct net_device *); > - int (*get_rxfh)(struct net_device *, u32 *indir, u8 *key, > - u8 *hfunc); > - int (*set_rxfh)(struct net_device *, const u32 *indir, > - const u8 *key, const u8 hfunc); > + int (*get_rxfh)(struct net_device *, struct ethtool_rxfh *, > + u32 *indir, u8 *key); > + int (*set_rxfh)(struct net_device *, struct ethtool_rxfh *, > + const u32 *indir, const u8 *key); > int (*get_rxfh_context)(struct net_device *, u32 *indir, u8 *key, > u8 *hfunc, u32 rss_context); > int (*set_rxfh_context)(struct net_device *, const u32 *indir, This conversion looks 1/4th done. You should do the following: - First simplify the code by always providing a pointer to all params (indir, key and func); the fact that some of them may be NULL seems like a weird historic thing or a premature optimization. It will simplify the drivers if all pointers are always present. You don't have to remove the if () checks in the existing drivers. - Then make the functions take a dev pointer, and a pointer to a single struct wrapping all arguments. The set_* should also take an extack. - Add a rss_context member to the argument struct and a capability like cap_link_lanes_supported to indicate whether driver supports rss contexts, then you can remove *et_rxfh_context functions, and instead call *et_rxfh() with a non-zero rss_context. - Add your new member to the struct wrapping all params. If you just expose struct ethtool_rxfh to the drivers (a) there are fields in there drivers shouldn't touch, and (b) that struct is uAPI so we can't add netlink-only fields easily.
