diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index e6cebdc58de..f4d2e9e3c6d 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -2113,13 +2113,17 @@ static int ixgbe_set_coalesce(struct net_device *netdev, struct ixgbe_adapter *adapter = netdev_priv(netdev); struct ixgbe_q_vector *q_vector; int i; - u16 tx_itr_param, rx_itr_param; + u16 tx_itr_param, rx_itr_param, tx_itr_prev; bool need_reset = false; - /* don't accept tx specific changes if we've got mixed RxTx vectors */ - if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count - && ec->tx_coalesce_usecs) - return -EINVAL; + if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) { + /* reject Tx specific changes in case of mixed RxTx vectors */ + if (ec->tx_coalesce_usecs) + return -EINVAL; + tx_itr_prev = adapter->rx_itr_setting; + } else { + tx_itr_prev = adapter->tx_itr_setting; + } if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) || (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2))) @@ -2145,8 +2149,25 @@ static int ixgbe_set_coalesce(struct net_device *netdev, else tx_itr_param = adapter->tx_itr_setting; + /* mixed Rx/Tx */ + if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) + adapter->tx_itr_setting = adapter->rx_itr_setting; + +#if IS_ENABLED(CONFIG_BQL) + /* detect ITR changes that require update of TXDCTL.WTHRESH */ + if ((adapter->tx_itr_setting > 1) && + (adapter->tx_itr_setting < IXGBE_100K_ITR)) { + if ((tx_itr_prev == 1) || + (tx_itr_prev > IXGBE_100K_ITR)) + need_reset = true; + } else { + if ((tx_itr_prev > 1) && + (tx_itr_prev < IXGBE_100K_ITR)) + need_reset = true; + } +#endif /* check the old value and enable RSC if necessary */ - need_reset = ixgbe_update_rsc(adapter); + need_reset |= ixgbe_update_rsc(adapter); for (i = 0; i < adapter->num_q_vectors; i++) { q_vector = adapter->q_vector[i]; |