Changeset 78478 in vbox for trunk/src/VBox/Devices/Network

Timestamp:

May 13, 2019 9:06:54 AM (6 years ago)

Author:

vboxsync

Message:

PCnet: Clear cached descriptor state when doing INIT. Required at least for FreeBSD pcn driver.

File:

• trunk/src/VBox/Devices/Network/DevPCNet.cpp (modified) (1 diff)

trunk/src/VBox/Devices/Network/DevPCNet.cpp

@@ -1623 +1623 @@
 {
     Log(("#%d pcnetStart:\n", PCNET_INST_NR));
+
+    /* Reset any cached RX/TX descriptor state. */
+    CSR_CRDA(pThis) = CSR_CRBA(pThis) = CSR_NRDA(pThis) = CSR_NRBA(pThis) = 0;
+    CSR_CRBC(pThis) = CSR_NRBC(pThis) = CSR_CRST(pThis) = 0;
+
     if (!CSR_DTX(pThis))
         pThis->aCSR[0] |= 0x0010;    /* set TXON */