+\r
+ //\r
+ // Unmap the device address and perform the reverse mapping to find the\r
+ // caller buffer address.\r
+ //\r
+ Status = VirtioNetUnmapTxBuf (\r
+ Dev,\r
+ TxBuf,\r
+ DeviceAddress\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ //\r
+ // VirtioNetUnmapTxBuf should never fail, if we have reached here\r
+ // that means our internal state has been corrupted\r
+ //\r
+ ASSERT (FALSE);\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Exit;\r
+ }\r