The functions that are never called have been removed.
They are AhciCheckDeviceStatus,AhciPortReset,DRDYReady,
DRDYReady2,WaitForBSYClear2 and AtaSoftReset.
https://bugzilla.tianocore.org/show_bug.cgi?id=1062
v2: DRDYReady, DRDYReady2, WaitForBSYClear2 and AtaSoftReset
are added to the commit message.
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: shenglei <shenglei.zhang@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
For some SCSI commands, notably INQUIRY, it's relatively common for
the device to provide less data than we intended to read, and for
this reason EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET makes
InTransferLength and OutTransferLength read-write. Make ATAPI
aware of this.
This makes it possible to handle EFI_NOT_READY always, not just
for read as done in r19685.
I've chosen to use a break statement instead of calling
CheckStatusRegister directly; the break statement reaches a
pre-existing call the CheckStatusRegister function. This
ensures that the assignment to *ByteCount is not missed, and
adds a further sanity check to DRQClear.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19737 6f19259b-4bc3-4df7-8a09-765794883524
SVN r19611 (git commit 7cac240163), "MdeModulePkg/Ide: return correct
status when DRQ is not ready for ATAPI", changed the behavior of
AtaPacketReadWrite(), when DRQReady2() reported an error. The previous
logic had been to:
(a) terminate the transfer loop,
(b) check the status register with CheckStatusRegister(), and determine
AtaPacketReadWrite()'s return code directly from that.
Action (a) had been correct, but action (b) had masked genuine errors.
For example, when DRQReady2() reported EFI_TIMEOUT -- because the BSY bit
had not been cleared within the allotted time --, CheckStatusRegister()
would report EFI_SUCCESS, simply *because* BSY was still set, and the rest
of the status bits could not be evaluated.
SVN r19611 (git commit 7cac240163) intended to fix action (b) by directly
propagating the error code of DRQReady2() from AtaPacketReadWrite(),
eliminating the CheckStatusRegister() call. This was the right thing for
most of the errors reported by DRQReady2() -- timeout, command abort,
other device error --, but there was one exception: the "read" sub-case of
EFI_NOT_READY, which stands for "'read' complete, with less data available
than the requested amount".
Regarding the "write" sub-case of EFI_NOT_READY: the
AtaPacketCommandExecute() function programs the full transfer length into
the IDE device before it calls AtaPacketReadWrite(), and
AtaPacketReadWrite() only uses CylinderLsb and CylinderMsb for "chunking"
(as requested by the device). Therefore the device cannot justifiedly
clear DRQ earlier than seeing the entire data, when writing.
However, when reading from the device, a "short read" is a successful
operation. (The actual read length will be decoded by the higher level
protocols.) And "short reads" had been handled correctly by the logic
before git 7cac240163. Namely, when DRQReady2() returns EFI_NOT_READY, the
BSY bit is already clear, and we can call CheckStatusRegister() to
investigate all the other bits it cares about.
Therefore restore the logic from before git 7cac240163, but only for the
"read" sub-case of EFI_NOT_READY.
This problem was encountered with OVMF running on QEMU's i440fx IDE
emulation. Many thanks to John Snow for analyzing QEMU's behavior, and
pointing out that it adhered to the relevant specs.
Cc: Feng Tian <feng.tian@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: John Snow <jsnow@redhat.com>
Reference: https://github.com/tianocore/edk2/issues/43
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19685 6f19259b-4bc3-4df7-8a09-765794883524
The DRQReady() and DRQReady2() functions only differ in that they poll
different status registers for BSY, ERR, and DRQ: the former looks at the
Status Register (clearing interrupt status), while the latter looks at the
Alternate Status Register (not clearing interrupt status).
They both correctly return a unique status code, EFI_NOT_READY, for the
BSY==0 && ERR==0 && DRQ==0
case; that is, when the device reports "command complete".
However, the functions' leading comments don't explain this case, so it's
easy to miss in callers. Update the comments.
Cc: Feng Tian <feng.tian@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: John Snow <jsnow@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19684 6f19259b-4bc3-4df7-8a09-765794883524
When executing ATAPI cmd at IDE mode, EFI_SUCCESS may be returned wrongly
with old logic but in fact DRQ is not ready and the transaction doesn't
get executed correctly at this time.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19611 6f19259b-4bc3-4df7-8a09-765794883524
Some IDE controllers only update ID fields such as sector information on
specific commands such as the DIAG command.
The master/slave device is therefore selected both before and after
sending the DIAG command; otherwise reading the IDE registers yields the
master's ID fields.
(Reza's patch originally *moved* the master/slave selection from after the
DIAG command before it, however Feng asked for the original master/slave
select to be preserved; effectively making the master/slave select
*bracket* the DIAG command. See this subthread:
<http://thread.gmane.org/gmane.comp.bios.tianocore.devel/10545/focus=10550>.)
Cc: Alexander Graf <agraf@suse.de>
Cc: Reza Jelveh <reza.jelveh@tuhh.de>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Gabriel L. Somlo <somlo@cmu.edu>
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Reza Jelveh <reza.jelveh@tuhh.de>
[feng.tian@intel.com: see above]
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@intel.com>
[lersek@redhat.com: updated commit message]
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Tested-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18529 6f19259b-4bc3-4df7-8a09-765794883524
Follow IDE BUS Master spec to ensure the PRDT table not cross 64k
boundary in memory.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17552 6f19259b-4bc3-4df7-8a09-765794883524
Besides this, the patch also fixed:
1) Wrong return value in SenseDataLength field of packet field of EFI_EXT_SCSI_PASS_THRU protocol, it should reflect real sense data length we got.
2) Wrong logic in ScsiDiskRequestSenseKeys that the logic makes SenseData pointer unaligned compared with BlockIo.Media.IoAlign field.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Tian, Feng <feng.tian@intel.com>
Reviewed-by: Zeng, Star <star.zeng@intel.com>
Reviewed-by: Fu, Siyuan <siyuan.fu@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15491 6f19259b-4bc3-4df7-8a09-765794883524
1. move the non-blocking task related setting ahead to store the MapTable and PageCount in case there is a IO operation error happened then the error handler code could use those information to release the resource.
2. Enlarge the TPL protective area to make sure the simulative delay time is accurate when there is mixing usage of Non blocking and blocking I/O.
Signed-off-by: qianouyang
Reviewed-by: erictian
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12712 6f19259b-4bc3-4df7-8a09-765794883524
1. Boost IDE mode boot when slave device is absent.
2. Use D2H FIS to check if the PIO OUT/DMA IN/DMA OUT transfer is finished or error happened. ATA PIO IN has special check as it may just receive PIO SETUP FIS for success case.
3. Add command status register check for IDE DMA transfer.
4. ScsiDiskReadCapacity() in ScsiDisk should return EFI_SUCCESS if SENSE Data request is success.
Signed-off-by: erictian
Reviewed-by: rsun3
Reviewed-by: xdu2
Reviewed-by: mdkinney
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12658 6f19259b-4bc3-4df7-8a09-765794883524
GCC 4.6 generates a warning when a variable is set,
but never used.
Signed-off-by: jljusten
Reviewed-by: lgao4
Reviewed-by: erictian
Reviewed-by: rsun3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12617 6f19259b-4bc3-4df7-8a09-765794883524
shenglei
Paolo Bonzini
Laszlo Ersek
Feng Tian
Reza Jelveh
Elvin Li
erictian
qianouyang
jljusten
lzeng14
li-elvin