* [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status override
@ 2017-12-04 2:27 Heyi Guo
2017-12-04 2:46 ` Wu, Hao A
0 siblings, 1 reply; 5+ messages in thread
From: Heyi Guo @ 2017-12-04 2:27 UTC (permalink / raw)
To: linaro-uefi, edk2-devel; +Cc: Heyi Guo, Star Zeng, Eric Dong, Hao Wu, Ruiyu Ni
Commit f6b139b added return status handling to PciIo->Mem.Write.
However, the second status handling will override EFI_DEVICE_ERROR
returned in this branch:
//
// Check the NVMe cmd execution result
//
if (Status != EFI_TIMEOUT) {
if ((Cq->Sct == 0) && (Cq->Sc == 0)) {
Status = EFI_SUCCESS;
} else {
Status = EFI_DEVICE_ERROR;
^^^^^^^^^^^^^^^^
Since PciIo->Mem.Write will probably return SUCCESS, it causes
NvmExpressPassThru to return SUCCESS even when DEVICE_ERROR occurs.
Callers of NvmExpressPassThru will then continue executing which may
cause further unexpected results, e.g. DiscoverAllNamespaces couldn't
break out the loop.
So we save previous status before calling PciIo->Mem.Write and restore
the previous one if it already contains error.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Heyi Guo <heyi.guo@linaro.org>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
---
MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c
index c33038f..7356c1d 100644
--- a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c
+++ b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c
@@ -453,6 +453,7 @@ NvmExpressPassThru (
{
NVME_CONTROLLER_PRIVATE_DATA *Private;
EFI_STATUS Status;
+ EFI_STATUS PreviousStatus;
EFI_PCI_IO_PROTOCOL *PciIo;
NVME_SQ *Sq;
NVME_CQ *Cq;
@@ -831,6 +832,7 @@ NvmExpressPassThru (
}
Data = ReadUnaligned32 ((UINT32*)&Private->CqHdbl[QueueId]);
+ PreviousStatus = Status;
Status = PciIo->Mem.Write (
PciIo,
EfiPciIoWidthUint32,
@@ -839,6 +841,9 @@ NvmExpressPassThru (
1,
&Data
);
+ // The return status of PciIo->Mem.Write should not override
+ // previous status if previous status contains error.
+ Status = EFI_ERROR (PreviousStatus) ? PreviousStatus : Status;
//
// For now, the code does not support the non-blocking feature for admin queue.
--
2.7.2.windows.1
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status override 2017-12-04 2:27 [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status override Heyi Guo @ 2017-12-04 2:46 ` Wu, Hao A 2017-12-04 5:54 ` Zeng, Star 0 siblings, 1 reply; 5+ messages in thread From: Wu, Hao A @ 2017-12-04 2:46 UTC (permalink / raw) To: Heyi Guo, linaro-uefi@lists.linaro.org, edk2-devel@lists.01.org Cc: Zeng, Star, Dong, Eric, Ni, Ruiyu Reviewed-by: Hao Wu <hao.a.wu@intel.com> Best Regards, Hao Wu > -----Original Message----- > From: Heyi Guo [mailto:heyi.guo@linaro.org] > Sent: Monday, December 04, 2017 10:28 AM > To: linaro-uefi@lists.linaro.org; edk2-devel@lists.01.org > Cc: Heyi Guo; Zeng, Star; Dong, Eric; Wu, Hao A; Ni, Ruiyu > Subject: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status override > > Commit f6b139b added return status handling to PciIo->Mem.Write. > However, the second status handling will override EFI_DEVICE_ERROR > returned in this branch: > > // > // Check the NVMe cmd execution result > // > if (Status != EFI_TIMEOUT) { > if ((Cq->Sct == 0) && (Cq->Sc == 0)) { > Status = EFI_SUCCESS; > } else { > Status = EFI_DEVICE_ERROR; > ^^^^^^^^^^^^^^^^ > > Since PciIo->Mem.Write will probably return SUCCESS, it causes > NvmExpressPassThru to return SUCCESS even when DEVICE_ERROR occurs. > Callers of NvmExpressPassThru will then continue executing which may > cause further unexpected results, e.g. DiscoverAllNamespaces couldn't > break out the loop. > > So we save previous status before calling PciIo->Mem.Write and restore > the previous one if it already contains error. > > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Heyi Guo <heyi.guo@linaro.org> > Cc: Star Zeng <star.zeng@intel.com> > Cc: Eric Dong <eric.dong@intel.com> > Cc: Hao Wu <hao.a.wu@intel.com> > Cc: Ruiyu Ni <ruiyu.ni@intel.com> > --- > MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > index c33038f..7356c1d 100644 > --- a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > +++ b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > @@ -453,6 +453,7 @@ NvmExpressPassThru ( > { > NVME_CONTROLLER_PRIVATE_DATA *Private; > EFI_STATUS Status; > + EFI_STATUS PreviousStatus; > EFI_PCI_IO_PROTOCOL *PciIo; > NVME_SQ *Sq; > NVME_CQ *Cq; > @@ -831,6 +832,7 @@ NvmExpressPassThru ( > } > > Data = ReadUnaligned32 ((UINT32*)&Private->CqHdbl[QueueId]); > + PreviousStatus = Status; > Status = PciIo->Mem.Write ( > PciIo, > EfiPciIoWidthUint32, > @@ -839,6 +841,9 @@ NvmExpressPassThru ( > 1, > &Data > ); > + // The return status of PciIo->Mem.Write should not override > + // previous status if previous status contains error. > + Status = EFI_ERROR (PreviousStatus) ? PreviousStatus : Status; > > // > // For now, the code does not support the non-blocking feature for admin > queue. > -- > 2.7.2.windows.1 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status override 2017-12-04 2:46 ` Wu, Hao A @ 2017-12-04 5:54 ` Zeng, Star 2017-12-05 0:29 ` Wu, Hao A 0 siblings, 1 reply; 5+ messages in thread From: Zeng, Star @ 2017-12-04 5:54 UTC (permalink / raw) To: Wu, Hao A, Heyi Guo, linaro-uefi@lists.linaro.org, edk2-devel@lists.01.org Cc: Dong, Eric, Ni, Ruiyu, Zeng, Star Reviewed-by: Star Zeng <star.zeng@intel.com> Hao, please help push the patch if no other comments received. Thanks, Star -----Original Message----- From: Wu, Hao A Sent: Monday, December 4, 2017 10:47 AM To: Heyi Guo <heyi.guo@linaro.org>; linaro-uefi@lists.linaro.org; edk2-devel@lists.01.org Cc: Zeng, Star <star.zeng@intel.com>; Dong, Eric <eric.dong@intel.com>; Ni, Ruiyu <ruiyu.ni@intel.com> Subject: RE: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status override Reviewed-by: Hao Wu <hao.a.wu@intel.com> Best Regards, Hao Wu > -----Original Message----- > From: Heyi Guo [mailto:heyi.guo@linaro.org] > Sent: Monday, December 04, 2017 10:28 AM > To: linaro-uefi@lists.linaro.org; edk2-devel@lists.01.org > Cc: Heyi Guo; Zeng, Star; Dong, Eric; Wu, Hao A; Ni, Ruiyu > Subject: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status > override > > Commit f6b139b added return status handling to PciIo->Mem.Write. > However, the second status handling will override EFI_DEVICE_ERROR > returned in this branch: > > // > // Check the NVMe cmd execution result > // > if (Status != EFI_TIMEOUT) { > if ((Cq->Sct == 0) && (Cq->Sc == 0)) { > Status = EFI_SUCCESS; > } else { > Status = EFI_DEVICE_ERROR; > ^^^^^^^^^^^^^^^^ > > Since PciIo->Mem.Write will probably return SUCCESS, it causes > NvmExpressPassThru to return SUCCESS even when DEVICE_ERROR occurs. > Callers of NvmExpressPassThru will then continue executing which may > cause further unexpected results, e.g. DiscoverAllNamespaces couldn't > break out the loop. > > So we save previous status before calling PciIo->Mem.Write and restore > the previous one if it already contains error. > > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Heyi Guo <heyi.guo@linaro.org> > Cc: Star Zeng <star.zeng@intel.com> > Cc: Eric Dong <eric.dong@intel.com> > Cc: Hao Wu <hao.a.wu@intel.com> > Cc: Ruiyu Ni <ruiyu.ni@intel.com> > --- > MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > index c33038f..7356c1d 100644 > --- a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > +++ b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > @@ -453,6 +453,7 @@ NvmExpressPassThru ( { > NVME_CONTROLLER_PRIVATE_DATA *Private; > EFI_STATUS Status; > + EFI_STATUS PreviousStatus; > EFI_PCI_IO_PROTOCOL *PciIo; > NVME_SQ *Sq; > NVME_CQ *Cq; > @@ -831,6 +832,7 @@ NvmExpressPassThru ( > } > > Data = ReadUnaligned32 ((UINT32*)&Private->CqHdbl[QueueId]); > + PreviousStatus = Status; > Status = PciIo->Mem.Write ( > PciIo, > EfiPciIoWidthUint32, > @@ -839,6 +841,9 @@ NvmExpressPassThru ( > 1, > &Data > ); > + // The return status of PciIo->Mem.Write should not override // > + previous status if previous status contains error. > + Status = EFI_ERROR (PreviousStatus) ? PreviousStatus : Status; > > // > // For now, the code does not support the non-blocking feature for > admin queue. > -- > 2.7.2.windows.1 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status override 2017-12-04 5:54 ` Zeng, Star @ 2017-12-05 0:29 ` Wu, Hao A 2017-12-05 1:13 ` Heyi Guo 0 siblings, 1 reply; 5+ messages in thread From: Wu, Hao A @ 2017-12-05 0:29 UTC (permalink / raw) To: Zeng, Star, Heyi Guo, linaro-uefi@lists.linaro.org, edk2-devel@lists.01.org Cc: Dong, Eric, Ni, Ruiyu Pushed at 9a77210b43ef34af52ea7285fadc0ce5779306fe. Best Regards, Hao Wu > -----Original Message----- > From: Zeng, Star > Sent: Monday, December 04, 2017 1:54 PM > To: Wu, Hao A; Heyi Guo; linaro-uefi@lists.linaro.org; edk2-devel@lists.01.org > Cc: Dong, Eric; Ni, Ruiyu; Zeng, Star > Subject: RE: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status > override > > Reviewed-by: Star Zeng <star.zeng@intel.com> > > Hao, please help push the patch if no other comments received. > > > Thanks, > Star > -----Original Message----- > From: Wu, Hao A > Sent: Monday, December 4, 2017 10:47 AM > To: Heyi Guo <heyi.guo@linaro.org>; linaro-uefi@lists.linaro.org; edk2- > devel@lists.01.org > Cc: Zeng, Star <star.zeng@intel.com>; Dong, Eric <eric.dong@intel.com>; Ni, > Ruiyu <ruiyu.ni@intel.com> > Subject: RE: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status > override > > Reviewed-by: Hao Wu <hao.a.wu@intel.com> > > Best Regards, > Hao Wu > > > > -----Original Message----- > > From: Heyi Guo [mailto:heyi.guo@linaro.org] > > Sent: Monday, December 04, 2017 10:28 AM > > To: linaro-uefi@lists.linaro.org; edk2-devel@lists.01.org > > Cc: Heyi Guo; Zeng, Star; Dong, Eric; Wu, Hao A; Ni, Ruiyu > > Subject: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status > > override > > > > Commit f6b139b added return status handling to PciIo->Mem.Write. > > However, the second status handling will override EFI_DEVICE_ERROR > > returned in this branch: > > > > // > > // Check the NVMe cmd execution result > > // > > if (Status != EFI_TIMEOUT) { > > if ((Cq->Sct == 0) && (Cq->Sc == 0)) { > > Status = EFI_SUCCESS; > > } else { > > Status = EFI_DEVICE_ERROR; > > ^^^^^^^^^^^^^^^^ > > > > Since PciIo->Mem.Write will probably return SUCCESS, it causes > > NvmExpressPassThru to return SUCCESS even when DEVICE_ERROR occurs. > > Callers of NvmExpressPassThru will then continue executing which may > > cause further unexpected results, e.g. DiscoverAllNamespaces couldn't > > break out the loop. > > > > So we save previous status before calling PciIo->Mem.Write and restore > > the previous one if it already contains error. > > > > Contributed-under: TianoCore Contribution Agreement 1.1 > > Signed-off-by: Heyi Guo <heyi.guo@linaro.org> > > Cc: Star Zeng <star.zeng@intel.com> > > Cc: Eric Dong <eric.dong@intel.com> > > Cc: Hao Wu <hao.a.wu@intel.com> > > Cc: Ruiyu Ni <ruiyu.ni@intel.com> > > --- > > MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > > b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > > index c33038f..7356c1d 100644 > > --- a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > > +++ b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c > > @@ -453,6 +453,7 @@ NvmExpressPassThru ( { > > NVME_CONTROLLER_PRIVATE_DATA *Private; > > EFI_STATUS Status; > > + EFI_STATUS PreviousStatus; > > EFI_PCI_IO_PROTOCOL *PciIo; > > NVME_SQ *Sq; > > NVME_CQ *Cq; > > @@ -831,6 +832,7 @@ NvmExpressPassThru ( > > } > > > > Data = ReadUnaligned32 ((UINT32*)&Private->CqHdbl[QueueId]); > > + PreviousStatus = Status; > > Status = PciIo->Mem.Write ( > > PciIo, > > EfiPciIoWidthUint32, > > @@ -839,6 +841,9 @@ NvmExpressPassThru ( > > 1, > > &Data > > ); > > + // The return status of PciIo->Mem.Write should not override // > > + previous status if previous status contains error. > > + Status = EFI_ERROR (PreviousStatus) ? PreviousStatus : Status; > > > > // > > // For now, the code does not support the non-blocking feature for > > admin queue. > > -- > > 2.7.2.windows.1 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status override 2017-12-05 0:29 ` Wu, Hao A @ 2017-12-05 1:13 ` Heyi Guo 0 siblings, 0 replies; 5+ messages in thread From: Heyi Guo @ 2017-12-05 1:13 UTC (permalink / raw) To: Wu, Hao A, Zeng, Star, linaro-uefi@lists.linaro.org, edk2-devel@lists.01.org Cc: Dong, Eric, Ni, Ruiyu Thanks Hao :) 在 12/5/2017 8:29 AM, Wu, Hao A 写道: > Pushed at 9a77210b43ef34af52ea7285fadc0ce5779306fe. > > Best Regards, > Hao Wu > > >> -----Original Message----- >> From: Zeng, Star >> Sent: Monday, December 04, 2017 1:54 PM >> To: Wu, Hao A; Heyi Guo; linaro-uefi@lists.linaro.org; edk2-devel@lists.01.org >> Cc: Dong, Eric; Ni, Ruiyu; Zeng, Star >> Subject: RE: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status >> override >> >> Reviewed-by: Star Zeng <star.zeng@intel.com> >> >> Hao, please help push the patch if no other comments received. >> >> >> Thanks, >> Star >> -----Original Message----- >> From: Wu, Hao A >> Sent: Monday, December 4, 2017 10:47 AM >> To: Heyi Guo <heyi.guo@linaro.org>; linaro-uefi@lists.linaro.org; edk2- >> devel@lists.01.org >> Cc: Zeng, Star <star.zeng@intel.com>; Dong, Eric <eric.dong@intel.com>; Ni, >> Ruiyu <ruiyu.ni@intel.com> >> Subject: RE: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status >> override >> >> Reviewed-by: Hao Wu <hao.a.wu@intel.com> >> >> Best Regards, >> Hao Wu >> >> >>> -----Original Message----- >>> From: Heyi Guo [mailto:heyi.guo@linaro.org] >>> Sent: Monday, December 04, 2017 10:28 AM >>> To: linaro-uefi@lists.linaro.org; edk2-devel@lists.01.org >>> Cc: Heyi Guo; Zeng, Star; Dong, Eric; Wu, Hao A; Ni, Ruiyu >>> Subject: [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status >>> override >>> >>> Commit f6b139b added return status handling to PciIo->Mem.Write. >>> However, the second status handling will override EFI_DEVICE_ERROR >>> returned in this branch: >>> >>> // >>> // Check the NVMe cmd execution result >>> // >>> if (Status != EFI_TIMEOUT) { >>> if ((Cq->Sct == 0) && (Cq->Sc == 0)) { >>> Status = EFI_SUCCESS; >>> } else { >>> Status = EFI_DEVICE_ERROR; >>> ^^^^^^^^^^^^^^^^ >>> >>> Since PciIo->Mem.Write will probably return SUCCESS, it causes >>> NvmExpressPassThru to return SUCCESS even when DEVICE_ERROR occurs. >>> Callers of NvmExpressPassThru will then continue executing which may >>> cause further unexpected results, e.g. DiscoverAllNamespaces couldn't >>> break out the loop. >>> >>> So we save previous status before calling PciIo->Mem.Write and restore >>> the previous one if it already contains error. >>> >>> Contributed-under: TianoCore Contribution Agreement 1.1 >>> Signed-off-by: Heyi Guo <heyi.guo@linaro.org> >>> Cc: Star Zeng <star.zeng@intel.com> >>> Cc: Eric Dong <eric.dong@intel.com> >>> Cc: Hao Wu <hao.a.wu@intel.com> >>> Cc: Ruiyu Ni <ruiyu.ni@intel.com> >>> --- >>> MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c | 5 +++++ >>> 1 file changed, 5 insertions(+) >>> >>> diff --git a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c >>> b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c >>> index c33038f..7356c1d 100644 >>> --- a/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c >>> +++ b/MdeModulePkg/Bus/Pci/NvmExpressDxe/NvmExpressPassthru.c >>> @@ -453,6 +453,7 @@ NvmExpressPassThru ( { >>> NVME_CONTROLLER_PRIVATE_DATA *Private; >>> EFI_STATUS Status; >>> + EFI_STATUS PreviousStatus; >>> EFI_PCI_IO_PROTOCOL *PciIo; >>> NVME_SQ *Sq; >>> NVME_CQ *Cq; >>> @@ -831,6 +832,7 @@ NvmExpressPassThru ( >>> } >>> >>> Data = ReadUnaligned32 ((UINT32*)&Private->CqHdbl[QueueId]); >>> + PreviousStatus = Status; >>> Status = PciIo->Mem.Write ( >>> PciIo, >>> EfiPciIoWidthUint32, >>> @@ -839,6 +841,9 @@ NvmExpressPassThru ( >>> 1, >>> &Data >>> ); >>> + // The return status of PciIo->Mem.Write should not override // >>> + previous status if previous status contains error. >>> + Status = EFI_ERROR (PreviousStatus) ? PreviousStatus : Status; >>> >>> // >>> // For now, the code does not support the non-blocking feature for >>> admin queue. >>> -- >>> 2.7.2.windows.1 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2017-12-05 1:09 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2017-12-04 2:27 [PATCH v2] MdeModulePkg/NvmExpressDxe: fix error status override Heyi Guo 2017-12-04 2:46 ` Wu, Hao A 2017-12-04 5:54 ` Zeng, Star 2017-12-05 0:29 ` Wu, Hao A 2017-12-05 1:13 ` Heyi Guo
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