diff options
| -rw-r--r-- | sys/dev/ixgbe/ixgbe.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sys/dev/ixgbe/ixgbe.c b/sys/dev/ixgbe/ixgbe.c index e87a496..1d9a1a9 100644 --- a/sys/dev/ixgbe/ixgbe.c +++ b/sys/dev/ixgbe/ixgbe.c @@ -4190,6 +4190,20 @@ ixgbe_initialize_receive_units(struct adapter *adapter) srrctl &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; srrctl |= bufsz; srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; + + /* + * Set DROP_EN iff we have no flow control and >1 queue. + * Note that srrctl was cleared shortly before during reset, + * so we do not need to clear the bit, but do it just in case + * this code is moved elsewhere. + */ + if (adapter->num_queues > 1 && + adapter->hw.fc.requested_mode == ixgbe_fc_none) { + srrctl |= IXGBE_SRRCTL_DROP_EN; + } else { + srrctl &= ~IXGBE_SRRCTL_DROP_EN; + } + IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(i), srrctl); /* Setup the HW Rx Head and Tail Descriptor Pointers */ |
