diff options
Diffstat (limited to 'drivers/net/ethernet/realtek/r8169_main.c')
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 4fe8b1d35b69..aa3e63e031da 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -1908,6 +1908,11 @@ static int rtl_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec) if (tx_fr == 1) tx_fr = 0; + /* HW requires time limit to be set if frame limit is set */ + if ((tx_fr && !ec->tx_coalesce_usecs) || + (rx_fr && !ec->rx_coalesce_usecs)) + return -EINVAL; + w |= FIELD_PREP(RTL_COALESCE_TX_FRAMES, DIV_ROUND_UP(tx_fr, 4)); w |= FIELD_PREP(RTL_COALESCE_RX_FRAMES, DIV_ROUND_UP(rx_fr, 4)); |