Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1620811 > unrolled thread
| Started by | Jarod Wilson <jarod@redhat.com> |
|---|---|
| First post | 2017-04-11 03:10 +0200 |
| Last post | 2017-04-12 19:40 +0200 |
| Articles | 3 — 3 participants |
Back to article view | Back to linux.kernel
[PATCH] pci/quirks: ITE 8893 needs quirk_use_pcie_bridge_dma_alias Jarod Wilson <jarod@redhat.com> - 2017-04-11 03:10 +0200
Re: [PATCH] pci/quirks: ITE 8893 needs quirk_use_pcie_bridge_dma_alias Alex Williamson <alex.williamson@redhat.com> - 2017-04-11 06:50 +0200
Re: [PATCH] pci/quirks: ITE 8893 needs quirk_use_pcie_bridge_dma_alias Bjorn Helgaas <helgaas@kernel.org> - 2017-04-12 19:40 +0200
| From | Jarod Wilson <jarod@redhat.com> |
|---|---|
| Date | 2017-04-11 03:10 +0200 |
| Subject | [PATCH] pci/quirks: ITE 8893 needs quirk_use_pcie_bridge_dma_alias |
| Message-ID | <tuStH-6L-5@gated-at.bofh.it> |
This bridge has the same problems as the ITE 8892, which were resulting in crippling an older PCI 1Gbps NIC down to 45Mbps throughput with IOMMU and VT-d enabled. With the patch, this old e1000 goes back up to ~900Mbps. Suggested-by: Alex Williamson <alex.williamson@redhat.com> CC: linux-pci@vger.kernel.org CC: Alex Williamson <alex.williamson@redhat.com> CC: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jarod Wilson <jarod@redhat.com> --- drivers/pci/quirks.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 9236e40ac055..c95fbf2431f8 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3914,6 +3914,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ASMEDIA, 0x1080, DECLARE_PCI_FIXUP_HEADER(0x10e3, 0x8113, quirk_use_pcie_bridge_dma_alias); /* ITE 8892, https://bugzilla.kernel.org/show_bug.cgi?id=73551 */ DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8892, quirk_use_pcie_bridge_dma_alias); +/* ITE 8893 has the same problem as the 8892 */ +DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8893, quirk_use_pcie_bridge_dma_alias); /* Intel 82801, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c49 */ DECLARE_PCI_FIXUP_HEADER(0x8086, 0x244e, quirk_use_pcie_bridge_dma_alias); -- 2.12.1
[toc] | [next] | [standalone]
| From | Alex Williamson <alex.williamson@redhat.com> |
|---|---|
| Date | 2017-04-11 06:50 +0200 |
| Subject | Re: [PATCH] pci/quirks: ITE 8893 needs quirk_use_pcie_bridge_dma_alias |
| Message-ID | <tuVUC-2g1-9@gated-at.bofh.it> |
| In reply to | #1620811 |
On Mon, 10 Apr 2017 21:01:27 -0400 Jarod Wilson <jarod@redhat.com> wrote: > This bridge has the same problems as the ITE 8892, which were resulting in > crippling an older PCI 1Gbps NIC down to 45Mbps throughput with IOMMU and > VT-d enabled. With the patch, this old e1000 goes back up to ~900Mbps. > > Suggested-by: Alex Williamson <alex.williamson@redhat.com> > CC: linux-pci@vger.kernel.org > CC: Alex Williamson <alex.williamson@redhat.com> > CC: Bjorn Helgaas <bhelgaas@google.com> > Signed-off-by: Jarod Wilson <jarod@redhat.com> > --- > drivers/pci/quirks.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c > index 9236e40ac055..c95fbf2431f8 100644 > --- a/drivers/pci/quirks.c > +++ b/drivers/pci/quirks.c > @@ -3914,6 +3914,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ASMEDIA, 0x1080, > DECLARE_PCI_FIXUP_HEADER(0x10e3, 0x8113, quirk_use_pcie_bridge_dma_alias); > /* ITE 8892, https://bugzilla.kernel.org/show_bug.cgi?id=73551 */ > DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8892, quirk_use_pcie_bridge_dma_alias); > +/* ITE 8893 has the same problem as the 8892 */ > +DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8893, quirk_use_pcie_bridge_dma_alias); > /* Intel 82801, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c49 */ > DECLARE_PCI_FIXUP_HEADER(0x8086, 0x244e, quirk_use_pcie_bridge_dma_alias); Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
[toc] | [prev] | [next] | [standalone]
| From | Bjorn Helgaas <helgaas@kernel.org> |
|---|---|
| Date | 2017-04-12 19:40 +0200 |
| Subject | Re: [PATCH] pci/quirks: ITE 8893 needs quirk_use_pcie_bridge_dma_alias |
| Message-ID | <tvupk-7nO-19@gated-at.bofh.it> |
| In reply to | #1620811 |
On Mon, Apr 10, 2017 at 09:01:27PM -0400, Jarod Wilson wrote: > This bridge has the same problems as the ITE 8892, which were resulting in > crippling an older PCI 1Gbps NIC down to 45Mbps throughput with IOMMU and > VT-d enabled. With the patch, this old e1000 goes back up to ~900Mbps. > > Suggested-by: Alex Williamson <alex.williamson@redhat.com> > CC: linux-pci@vger.kernel.org > CC: Alex Williamson <alex.williamson@redhat.com> > CC: Bjorn Helgaas <bhelgaas@google.com> > Signed-off-by: Jarod Wilson <jarod@redhat.com> Applied with Alex's reviewed-by to pci/iommu for v4.12, thanks! > --- > drivers/pci/quirks.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c > index 9236e40ac055..c95fbf2431f8 100644 > --- a/drivers/pci/quirks.c > +++ b/drivers/pci/quirks.c > @@ -3914,6 +3914,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ASMEDIA, 0x1080, > DECLARE_PCI_FIXUP_HEADER(0x10e3, 0x8113, quirk_use_pcie_bridge_dma_alias); > /* ITE 8892, https://bugzilla.kernel.org/show_bug.cgi?id=73551 */ > DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8892, quirk_use_pcie_bridge_dma_alias); > +/* ITE 8893 has the same problem as the 8892 */ > +DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8893, quirk_use_pcie_bridge_dma_alias); > /* Intel 82801, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c49 */ > DECLARE_PCI_FIXUP_HEADER(0x8086, 0x244e, quirk_use_pcie_bridge_dma_alias); > > -- > 2.12.1 >
[toc] | [prev] | [standalone]
Back to top | Article view | linux.kernel
csiph-web