diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ethtool.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 374639e661d1..c741d6403364 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -159,6 +159,46 @@ static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings) return index % n_rx_rings; } +/** + * struct ethtool_rxfh_context - a custom RSS context configuration + * @indir_size: Number of u32 entries in indirection table + * @key_size: Size of hash key, in bytes + * @priv_size: Size of driver private data, in bytes + * @hfunc: RSS hash function identifier. One of the %ETH_RSS_HASH_* + * @input_xfrm: Defines how the input data is transformed. Valid values are one + * of %RXH_XFRM_*. + * @indir_configured: indir has been specified (at create time or subsequently) + * @key_configured: hkey has been specified (at create time or subsequently) + */ +struct ethtool_rxfh_context { + u32 indir_size; + u32 key_size; + u16 priv_size; + u8 hfunc; + u8 input_xfrm; + u8 indir_configured:1; + u8 key_configured:1; + /* private: driver private data, indirection table, and hash key are + * stored sequentially in @data area. Use below helpers to access. + */ + u8 data[] __aligned(sizeof(void *)); +}; + +static inline void *ethtool_rxfh_context_priv(struct ethtool_rxfh_context *ctx) +{ + return ctx->data; +} + +static inline u32 *ethtool_rxfh_context_indir(struct ethtool_rxfh_context *ctx) +{ + return (u32 *)(ctx->data + ALIGN(ctx->priv_size, sizeof(u32))); +} + +static inline u8 *ethtool_rxfh_context_key(struct ethtool_rxfh_context *ctx) +{ + return (u8 *)(ethtool_rxfh_context_indir(ctx) + ctx->indir_size); +} + /* declare a link mode bitmap */ #define __ETHTOOL_DECLARE_LINK_MODE_MASK(name) \ DECLARE_BITMAP(name, __ETHTOOL_LINK_MODE_MASK_NBITS) @@ -1006,9 +1046,11 @@ int ethtool_virtdev_set_link_ksettings(struct net_device *dev, /** * struct ethtool_netdev_state - per-netdevice state for ethtool features + * @rss_ctx: XArray of custom RSS contexts * @wol_enabled: Wake-on-LAN is enabled */ struct ethtool_netdev_state { + struct xarray rss_ctx; unsigned wol_enabled:1; }; |