diff options
| -rw-r--r-- | hw/e1000.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/e1000.c b/hw/e1000.c index 0a4574cf93..2a4d5c726c 100644 --- a/hw/e1000.c +++ b/hw/e1000.c @@ -446,7 +446,9 @@ process_tx_desc(E1000State *s, struct e1000_tx_desc *dp) return; } else if (dtype == (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D)) { // data descriptor - tp->sum_needed = le32_to_cpu(dp->upper.data) >> 8; + if (tp->size == 0) { + tp->sum_needed = le32_to_cpu(dp->upper.data) >> 8; + } tp->cptse = ( txd_lower & E1000_TXD_CMD_TSE ) ? 1 : 0; } else { // legacy descriptor |