• Ben Hutchings's avatar
    sfc: Delegate MAC/NIC statistic description to efx_nic_type · cd0ecc9a
    Ben Hutchings authored
    Various hardware statistics that are available for Siena are
    unavailable or meaningless for Falcon.  Huntington adds further to the
    NIC-type-specific statistics, as it has different MAC blocks from
    Falcon/Siena.
    
    All NIC types still provide most statistics by DMA, and use
    little-endian byte order.
    
    Therefore:
    1. Add some general utility functions for reporting hardware statistics,
       efx_nic_describe_stats() and efx_nic_update_stats().
    2. Add an efx_nic_type::describe_stats operation to get the number and
       names of statistics, implemented using efx_nic_describe_stats()
    3. Change efx_nic_type::update_stats to store the core statistics
       (struct rtnl_link_stats64) or full statistics (array of u64) in a
       caller-provided buffer.  Use efx_nic_update_stats() to aid in the
       implementation.
    4. Rename struct efx_ethtool_stat to struct efx_sw_stat_desc and
       EFX_ETHTOOL_NUM_STATS to EFX_ETHTOOL_SW_STAT_COUNT.
    5. Remove efx_nic::mac_stats and struct efx_mac_stats.
    Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
    cd0ecc9a
nic.c 14.2 KB