diff options
| -rw-r--r-- | include/uapi/linux/ethtool.h | 37 |
1 files changed, 26 insertions, 11 deletions
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h index d5a0d20a9ff0..e602cd05cef1 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -401,22 +401,37 @@ struct ethtool_coalesce { __u32 rate_sample_interval; }; -/* for configuring RX/TX ring parameters */ +/** + * struct ethtool_ringparam - RX/TX ring parameters + * @cmd: Command number = %ETHTOOL_GRINGPARAM or %ETHTOOL_SRINGPARAM + * @rx_max_pending: Maximum supported number of pending entries per + * RX ring. Read-only. + * @rx_mini_max_pending: Maximum supported number of pending entries + * per RX mini ring. Read-only. + * @rx_jumbo_max_pending: Maximum supported number of pending entries + * per RX jumbo ring. Read-only. + * @tx_max_pending: Maximum supported number of pending entries per + * TX ring. Read-only. + * @rx_pending: Current maximum number of pending entries per RX ring + * @rx_mini_pending: Current maximum number of pending entries per RX + * mini ring + * @rx_jumbo_pending: Current maximum number of pending entries per RX + * jumbo ring + * @tx_pending: Current maximum supported number of pending entries + * per TX ring + * + * If the interface does not have separate RX mini and/or jumbo rings, + * @rx_mini_max_pending and/or @rx_jumbo_max_pending will be 0. + * + * There may also be driver-dependent minimum values for the number + * of entries per ring. + */ struct ethtool_ringparam { - __u32 cmd; /* ETHTOOL_{G,S}RINGPARAM */ - - /* Read only attributes. These indicate the maximum number - * of pending RX/TX ring entries the driver will allow the - * user to set. - */ + __u32 cmd; __u32 rx_max_pending; __u32 rx_mini_max_pending; __u32 rx_jumbo_max_pending; __u32 tx_max_pending; - - /* Values changeable by the user. The valid values are - * in the range 1 to the "*_max_pending" counterpart above. - */ __u32 rx_pending; __u32 rx_mini_pending; __u32 rx_jumbo_pending; |