Implement igc_ethtool_get_rxfh_key_size() and extend igc_ethtool_get_rxfh() to return the RSS key to userspace.
This can be tested using `ethtool -x <dev>`. Signed-off-by: Kohei Enju <[email protected]> --- drivers/net/ethernet/intel/igc/igc_ethtool.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c index f89c2cbaace0..0482e590bc5a 100644 --- a/drivers/net/ethernet/intel/igc/igc_ethtool.c +++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c @@ -1490,6 +1490,11 @@ void igc_write_rss_indir_tbl(struct igc_adapter *adapter) } } +static u32 igc_ethtool_get_rxfh_key_size(struct net_device *netdev) +{ + return IGC_RSS_KEY_SIZE; +} + static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) { return IGC_RETA_SIZE; @@ -1502,10 +1507,13 @@ static int igc_ethtool_get_rxfh(struct net_device *netdev, int i; rxfh->hfunc = ETH_RSS_HASH_TOP; - if (!rxfh->indir) - return 0; - for (i = 0; i < IGC_RETA_SIZE; i++) - rxfh->indir[i] = adapter->rss_indir_tbl[i]; + + if (rxfh->indir) + for (i = 0; i < IGC_RETA_SIZE; i++) + rxfh->indir[i] = adapter->rss_indir_tbl[i]; + + if (rxfh->key) + memcpy(rxfh->key, adapter->rss_key, sizeof(adapter->rss_key)); return 0; } @@ -2182,6 +2190,7 @@ static const struct ethtool_ops igc_ethtool_ops = { .set_coalesce = igc_ethtool_set_coalesce, .get_rxnfc = igc_ethtool_get_rxnfc, .set_rxnfc = igc_ethtool_set_rxnfc, + .get_rxfh_key_size = igc_ethtool_get_rxfh_key_size, .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, .get_rxfh = igc_ethtool_get_rxfh, .set_rxfh = igc_ethtool_set_rxfh, -- 2.51.0
