solve the big file transfer issue using ISCSI
[Impaction]
change the control flow on IScsiExecuteScsiCommand function
[Reference Info]
The original design incorrectly uses a timer (its span is usually 2 seconds) to ensure the timely execution of CMD PDU send by initiator. For example: When initiator delivers a CMD PDU(WRITE command) in which the ExpDataXferLength filed is larger than DataSegmentLength field, according to ISCSI protocol spec, the target will respond it with a R2T PDU which is followed by a sequential DATA-OUT PDUs. In this situation, the original code may loop to deal with the arrival packet until initiator receives a RESPONSE PDU or the timer is expired. This way may cause the bigger file is more likely to fail.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5044 6f19259b-4bc3-4df7-8a09-765794883524
fix the wrote data corrupt bug about iscsi
[Impaction]
modify the IScsiGenerateDataOutPduSequence() function in MdeModulePkg.
[Reference Info]
when writing some data from local disk into remote iscsi disk, the data may be corrupt.The root cause is caused by the data out PDU's offset is not created correctly.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4843 6f19259b-4bc3-4df7-8a09-765794883524
eric_tian
vanjeff