* [PATCH 1/2] PCI: add AMD PCIe quirk for nvme shutdown opt
@ 2021-04-14 2:18 Prike Liang
2021-04-14 2:18 ` [PATCH 2/2] nvme-pci: add AMD PCIe quirk for suspend/resume Prike Liang
0 siblings, 1 reply; 7+ messages in thread
From: Prike Liang @ 2021-04-14 2:18 UTC (permalink / raw)
To: linux-nvme, kbusch, Chaitanya.Kulkarni, gregkh, hch
Cc: stable, Shyam-sundar.S-k, Alexander.Deucher, Prike Liang,
Chaitanya Kulkarni
The NVME device pluged in some AMD PCIE root port will resume timeout
from s2idle which caused by NVME power CFG lost in the SMU FW restore.
This issue can be workaround by using PCIe power set with simple
suspend/resume process path instead of APST. In the onwards ASIC will
try do the NVME shutdown save and restore in the BIOS and still need PCIe
power setting to resume from RTD3 for s2idle.
In this preparation patch add a PCIe quirk for the AMD.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
[ck: split patches for nvme and pcie]
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Cc: <stable@vger.kernel.org> # 5.11+
---
drivers/pci/quirks.c | 10 ++++++++++
include/linux/pci.h | 2 ++
2 files changed, 12 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 653660e3..f95c8b2 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -312,6 +312,16 @@ static void quirk_nopciamd(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
+static void quirk_amd_nvme_fixup(struct pci_dev *dev)
+{
+ struct pci_dev *rdev;
+
+ dev->dev_flags |= PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND;
+ pci_info(dev, "AMD simple suspend opt enabled\n");
+
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x1630, quirk_amd_nvme_fixup);
+
/* Triton requires workarounds to be used by the drivers */
static void quirk_triton(struct pci_dev *dev)
{
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 53f4904..a6e1b1b 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -227,6 +227,8 @@ enum pci_dev_flags {
PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10),
/* Don't use Relaxed Ordering for TLPs directed at this device */
PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 11),
+ /* AMD simple suspend opt quirk */
+ PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND = (__force pci_dev_flags_t) (1 << 12),
};
enum pci_irq_reroute_variant {
--
2.7.4
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^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 2/2] nvme-pci: add AMD PCIe quirk for suspend/resume
2021-04-14 2:18 [PATCH 1/2] PCI: add AMD PCIe quirk for nvme shutdown opt Prike Liang
@ 2021-04-14 2:18 ` Prike Liang
2021-04-14 5:34 ` Greg KH
0 siblings, 1 reply; 7+ messages in thread
From: Prike Liang @ 2021-04-14 2:18 UTC (permalink / raw)
To: linux-nvme, kbusch, Chaitanya.Kulkarni, gregkh, hch
Cc: stable, Shyam-sundar.S-k, Alexander.Deucher, Prike Liang,
Chaitanya Kulkarni
The NVME device pluged in some AMD PCIE root port will resume timeout
from s2idle which caused by NVME power CFG lost in the SMU FW restore.
This issue can be workaround by using PCIe power set with simple
suspend/resume process path instead of APST. In the onwards ASIC will
try do the NVME shutdown save and restore in the BIOS and still need
PCIe power setting to resume from RTD3 for s2idle.
Update the nvme_acpi_storage_d3() _with previously added quirk.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
[ck: split patches for nvme and pcie]
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Cc: <stable@vger.kernel.org> # 5.11+
---
drivers/nvme/host/pci.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 6bad4d4..dd46d9e 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2832,6 +2832,7 @@ static bool nvme_acpi_storage_d3(struct pci_dev *dev)
{
struct acpi_device *adev;
struct pci_dev *root;
+ struct pci_dev *rdev;
acpi_handle handle;
acpi_status status;
u8 val;
@@ -2845,6 +2846,10 @@ static bool nvme_acpi_storage_d3(struct pci_dev *dev)
if (!root)
return false;
+ rdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
+ if (rdev->dev_flags & PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND)
+ return NVME_QUIRK_SIMPLE_SUSPEND;
+
adev = ACPI_COMPANION(&root->dev);
if (!adev)
return false;
--
2.7.4
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^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH 2/2] nvme-pci: add AMD PCIe quirk for suspend/resume
2021-04-14 2:18 ` [PATCH 2/2] nvme-pci: add AMD PCIe quirk for suspend/resume Prike Liang
@ 2021-04-14 5:34 ` Greg KH
2021-04-14 6:10 ` Liang, Prike
0 siblings, 1 reply; 7+ messages in thread
From: Greg KH @ 2021-04-14 5:34 UTC (permalink / raw)
To: Prike Liang
Cc: linux-nvme, kbusch, Chaitanya.Kulkarni, hch, stable,
Shyam-sundar.S-k, Alexander.Deucher
On Wed, Apr 14, 2021 at 10:18:14AM +0800, Prike Liang wrote:
> The NVME device pluged in some AMD PCIE root port will resume timeout
> from s2idle which caused by NVME power CFG lost in the SMU FW restore.
> This issue can be workaround by using PCIe power set with simple
> suspend/resume process path instead of APST. In the onwards ASIC will
> try do the NVME shutdown save and restore in the BIOS and still need
> PCIe power setting to resume from RTD3 for s2idle.
>
> Update the nvme_acpi_storage_d3() _with previously added quirk.
>
> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
> [ck: split patches for nvme and pcie]
> Signed-off-by: Prike Liang <Prike.Liang@amd.com>
> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
> Cc: <stable@vger.kernel.org> # 5.11+
> ---
> drivers/nvme/host/pci.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
> index 6bad4d4..dd46d9e 100644
> --- a/drivers/nvme/host/pci.c
> +++ b/drivers/nvme/host/pci.c
> @@ -2832,6 +2832,7 @@ static bool nvme_acpi_storage_d3(struct pci_dev *dev)
> {
> struct acpi_device *adev;
> struct pci_dev *root;
> + struct pci_dev *rdev;
> acpi_handle handle;
> acpi_status status;
> u8 val;
> @@ -2845,6 +2846,10 @@ static bool nvme_acpi_storage_d3(struct pci_dev *dev)
> if (!root)
> return false;
>
> + rdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
> + if (rdev->dev_flags & PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND)
> + return NVME_QUIRK_SIMPLE_SUSPEND;
> +
You just leaked a reference count :(
And what if rdev is NULL?
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^ permalink raw reply [flat|nested] 7+ messages in thread
* RE: [PATCH 2/2] nvme-pci: add AMD PCIe quirk for suspend/resume
2021-04-14 5:34 ` Greg KH
@ 2021-04-14 6:10 ` Liang, Prike
0 siblings, 0 replies; 7+ messages in thread
From: Liang, Prike @ 2021-04-14 6:10 UTC (permalink / raw)
To: Greg KH
Cc: linux-nvme, kbusch, Chaitanya.Kulkarni, hch, stable, S-k,
Shyam-sundar, Deucher, Alexander
[AMD Public Use]
> From: Greg KH <gregkh@linuxfoundation.org>
> Sent: Wednesday, April 14, 2021 1:34 PM
> To: Liang, Prike <Prike.Liang@amd.com>
> Cc: linux-nvme@lists.infradead.org; kbusch@kernel.org;
> Chaitanya.Kulkarni@wdc.com; hch@infradead.org; stable@vger.kernel.org;
> S-k, Shyam-sundar <Shyam-sundar.S-k@amd.com>; Deucher, Alexander
> <Alexander.Deucher@amd.com>
> Subject: Re: [PATCH 2/2] nvme-pci: add AMD PCIe quirk for suspend/resume
>
> On Wed, Apr 14, 2021 at 10:18:14AM +0800, Prike Liang wrote:
> > The NVME device pluged in some AMD PCIE root port will resume timeout
> > from s2idle which caused by NVME power CFG lost in the SMU FW restore.
> > This issue can be workaround by using PCIe power set with simple
> > suspend/resume process path instead of APST. In the onwards ASIC will
> > try do the NVME shutdown save and restore in the BIOS and still need
> > PCIe power setting to resume from RTD3 for s2idle.
> >
> > Update the nvme_acpi_storage_d3() _with previously added quirk.
> >
> > Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
> > [ck: split patches for nvme and pcie]
> > Signed-off-by: Prike Liang <Prike.Liang@amd.com>
> > Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
> > Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
> > Cc: <stable@vger.kernel.org> # 5.11+
> > ---
> > drivers/nvme/host/pci.c | 5 +++++
> > 1 file changed, 5 insertions(+)
> >
> > diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index
> > 6bad4d4..dd46d9e 100644
> > --- a/drivers/nvme/host/pci.c
> > +++ b/drivers/nvme/host/pci.c
> > @@ -2832,6 +2832,7 @@ static bool nvme_acpi_storage_d3(struct pci_dev
> > *dev) {
> > struct acpi_device *adev;
> > struct pci_dev *root;
> > +struct pci_dev *rdev;
> > acpi_handle handle;
> > acpi_status status;
> > u8 val;
> > @@ -2845,6 +2846,10 @@ static bool nvme_acpi_storage_d3(struct
> pci_dev *dev)
> > if (!root)
> > return false;
> >
> > +rdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
> > +if (rdev->dev_flags &
> PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND)
> > +return NVME_QUIRK_SIMPLE_SUSPEND;
> > +
>
> You just leaked a reference count :(
>
> And what if rdev is NULL?
That seems the root complex entity not likely inexistence but have a null point check will be more safe.
Thanks point out and will update the patch.
Thanks,
Prike
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^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 1/2] PCI: add AMD PCIe quirk for nvme shutdown opt
@ 2021-04-14 6:19 Prike Liang
0 siblings, 0 replies; 7+ messages in thread
From: Prike Liang @ 2021-04-14 6:19 UTC (permalink / raw)
To: linux-nvme, kbusch, Chaitanya.Kulkarni, hch, gregkh
Cc: Shyam-sundar.S-k, Alexander.Deucher, Prike Liang,
Chaitanya Kulkarni, # 5 . 11+
The NVME device pluged in some AMD PCIE root port will resume timeout
from s2idle which caused by NVME power CFG lost in the SMU FW restore.
This issue can be workaround by using PCIe power set with simple
suspend/resume process path instead of APST. In the onwards ASIC will
try do the NVME shutdown save and restore in the BIOS and still need PCIe
power setting to resume from RTD3 for s2idle.
In this preparation patch add a PCIe quirk for the AMD.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
[ck: split patches for nvme and pcie]
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Cc: <stable@vger.kernel.org> # 5.11+
---
drivers/pci/quirks.c | 10 ++++++++++
include/linux/pci.h | 2 ++
2 files changed, 12 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 653660e3..f95c8b2 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -312,6 +312,16 @@ static void quirk_nopciamd(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
+static void quirk_amd_nvme_fixup(struct pci_dev *dev)
+{
+ struct pci_dev *rdev;
+
+ dev->dev_flags |= PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND;
+ pci_info(dev, "AMD simple suspend opt enabled\n");
+
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x1630, quirk_amd_nvme_fixup);
+
/* Triton requires workarounds to be used by the drivers */
static void quirk_triton(struct pci_dev *dev)
{
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 53f4904..a6e1b1b 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -227,6 +227,8 @@ enum pci_dev_flags {
PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10),
/* Don't use Relaxed Ordering for TLPs directed at this device */
PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 11),
+ /* AMD simple suspend opt quirk */
+ PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND = (__force pci_dev_flags_t) (1 << 12),
};
enum pci_irq_reroute_variant {
--
2.7.4
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^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 1/2] PCI: add AMD PCIe quirk for nvme shutdown opt
@ 2021-04-14 8:18 Prike Liang
2021-04-14 8:39 ` Greg KH
0 siblings, 1 reply; 7+ messages in thread
From: Prike Liang @ 2021-04-14 8:18 UTC (permalink / raw)
To: linux-nvme, kbusch, Chaitanya.Kulkarni, gregkh, hch
Cc: stable, Shyam-sundar.S-k, Alexander.Deucher, Prike Liang,
Chaitanya Kulkarni
The NVME device pluged in some AMD PCIE root port will resume timeout
from s2idle which caused by NVME power CFG lost in the SMU FW restore.
This issue can be workaround by using PCIe power set with simple
suspend/resume process path instead of APST. In the onwards ASIC will
try do the NVME shutdown save and restore in the BIOS and still need PCIe
power setting to resume from RTD3 for s2idle.
In this preparation patch add a PCIe quirk for the AMD.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
[ck: split patches for nvme and pcie]
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Cc: <stable@vger.kernel.org> # 5.11+
---
drivers/pci/quirks.c | 10 ++++++++++
include/linux/pci.h | 2 ++
2 files changed, 12 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 653660e3..f95c8b2 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -312,6 +312,16 @@ static void quirk_nopciamd(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
+static void quirk_amd_nvme_fixup(struct pci_dev *dev)
+{
+ struct pci_dev *rdev;
+
+ dev->dev_flags |= PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND;
+ pci_info(dev, "AMD simple suspend opt enabled\n");
+
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x1630, quirk_amd_nvme_fixup);
+
/* Triton requires workarounds to be used by the drivers */
static void quirk_triton(struct pci_dev *dev)
{
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 53f4904..a6e1b1b 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -227,6 +227,8 @@ enum pci_dev_flags {
PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10),
/* Don't use Relaxed Ordering for TLPs directed at this device */
PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 11),
+ /* AMD simple suspend opt quirk */
+ PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND = (__force pci_dev_flags_t) (1 << 12),
};
enum pci_irq_reroute_variant {
--
2.7.4
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^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] PCI: add AMD PCIe quirk for nvme shutdown opt
2021-04-14 8:18 Prike Liang
@ 2021-04-14 8:39 ` Greg KH
0 siblings, 0 replies; 7+ messages in thread
From: Greg KH @ 2021-04-14 8:39 UTC (permalink / raw)
To: Prike Liang
Cc: linux-nvme, kbusch, Chaitanya.Kulkarni, hch, stable,
Shyam-sundar.S-k, Alexander.Deucher
On Wed, Apr 14, 2021 at 04:18:00PM +0800, Prike Liang wrote:
> The NVME device pluged in some AMD PCIE root port will resume timeout
> from s2idle which caused by NVME power CFG lost in the SMU FW restore.
> This issue can be workaround by using PCIe power set with simple
> suspend/resume process path instead of APST. In the onwards ASIC will
> try do the NVME shutdown save and restore in the BIOS and still need PCIe
> power setting to resume from RTD3 for s2idle.
>
> In this preparation patch add a PCIe quirk for the AMD.
>
> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
> [ck: split patches for nvme and pcie]
> Signed-off-by: Prike Liang <Prike.Liang@amd.com>
> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
>
> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
> Cc: <stable@vger.kernel.org> # 5.11+
> ---
> drivers/pci/quirks.c | 10 ++++++++++
> include/linux/pci.h | 2 ++
> 2 files changed, 12 insertions(+)
>
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index 653660e3..f95c8b2 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -312,6 +312,16 @@ static void quirk_nopciamd(struct pci_dev *dev)
> }
> DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
>
> +static void quirk_amd_nvme_fixup(struct pci_dev *dev)
> +{
> + struct pci_dev *rdev;
> +
> + dev->dev_flags |= PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND;
> + pci_info(dev, "AMD simple suspend opt enabled\n");
> +
> +}
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x1630, quirk_amd_nvme_fixup);
> +
> /* Triton requires workarounds to be used by the drivers */
> static void quirk_triton(struct pci_dev *dev)
> {
> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index 53f4904..a6e1b1b 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -227,6 +227,8 @@ enum pci_dev_flags {
> PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10),
> /* Don't use Relaxed Ordering for TLPs directed at this device */
> PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 11),
> + /* AMD simple suspend opt quirk */
> + PCI_DEV_FLAGS_AMD_NVME_SIMPLE_SUSPEND = (__force pci_dev_flags_t) (1 << 12),
> };
>
> enum pci_irq_reroute_variant {
> --
> 2.7.4
>
Hi,
This is the friendly patch-bot of Greg Kroah-Hartman. You have sent him
a patch that has triggered this response. He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created. Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.
You are receiving this message because of the following common error(s)
as indicated below:
- This looks like a new version of a previously submitted patch, but you
did not list below the --- line any changes from the previous version.
Please read the section entitled "The canonical patch format" in the
kernel file, Documentation/SubmittingPatches for what needs to be done
here to properly describe this.
If you wish to discuss this problem further, or you have questions about
how to resolve this issue, please feel free to respond to this email and
Greg will reply once he has dug out from the pending patches received
from other developers.
thanks,
greg k-h's patch email bot
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^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2021-04-14 8:41 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-14 2:18 [PATCH 1/2] PCI: add AMD PCIe quirk for nvme shutdown opt Prike Liang
2021-04-14 2:18 ` [PATCH 2/2] nvme-pci: add AMD PCIe quirk for suspend/resume Prike Liang
2021-04-14 5:34 ` Greg KH
2021-04-14 6:10 ` Liang, Prike
2021-04-14 6:19 [PATCH 1/2] PCI: add AMD PCIe quirk for nvme shutdown opt Prike Liang
2021-04-14 8:18 Prike Liang
2021-04-14 8:39 ` Greg KH
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