* [PATCH 1/1] PCI: 64GT/s uses 1b/1b encoding
@ 2024-01-02 17:27 Ilpo Järvinen
2024-01-02 18:14 ` Bjorn Helgaas
0 siblings, 1 reply; 2+ messages in thread
From: Ilpo Järvinen @ 2024-01-02 17:27 UTC (permalink / raw)
To: Gustavo Pimentel, Bjorn Helgaas, linux-pci, linux-kernel
Cc: Ilpo Järvinen
PCIe 64GT/s Data Rate uses 1b/1b encoding, not 128b/130b (PCIe r6.1 sec
1.2, Table 1-1).
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/pci/pci.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 5ecbcf041179..d9132029d658 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -272,7 +272,7 @@ void pci_bus_put(struct pci_bus *bus);
/* PCIe speed to Mb/s reduced by encoding overhead */
#define PCIE_SPEED2MBS_ENC(speed) \
- ((speed) == PCIE_SPEED_64_0GT ? 64000*128/130 : \
+ ((speed) == PCIE_SPEED_64_0GT ? 64000*1/1 : \
(speed) == PCIE_SPEED_32_0GT ? 32000*128/130 : \
(speed) == PCIE_SPEED_16_0GT ? 16000*128/130 : \
(speed) == PCIE_SPEED_8_0GT ? 8000*128/130 : \
--
2.39.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 1/1] PCI: 64GT/s uses 1b/1b encoding
2024-01-02 17:27 [PATCH 1/1] PCI: 64GT/s uses 1b/1b encoding Ilpo Järvinen
@ 2024-01-02 18:14 ` Bjorn Helgaas
0 siblings, 0 replies; 2+ messages in thread
From: Bjorn Helgaas @ 2024-01-02 18:14 UTC (permalink / raw)
To: Ilpo Järvinen
Cc: Gustavo Pimentel, Bjorn Helgaas, linux-pci, linux-kernel
On Tue, Jan 02, 2024 at 07:27:00PM +0200, Ilpo Järvinen wrote:
> PCIe 64GT/s Data Rate uses 1b/1b encoding, not 128b/130b (PCIe r6.1 sec
> 1.2, Table 1-1).
>
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Applied to pci/enumeration for v6.8, thanks!
> ---
> drivers/pci/pci.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
> index 5ecbcf041179..d9132029d658 100644
> --- a/drivers/pci/pci.h
> +++ b/drivers/pci/pci.h
> @@ -272,7 +272,7 @@ void pci_bus_put(struct pci_bus *bus);
>
> /* PCIe speed to Mb/s reduced by encoding overhead */
> #define PCIE_SPEED2MBS_ENC(speed) \
> - ((speed) == PCIE_SPEED_64_0GT ? 64000*128/130 : \
> + ((speed) == PCIE_SPEED_64_0GT ? 64000*1/1 : \
> (speed) == PCIE_SPEED_32_0GT ? 32000*128/130 : \
> (speed) == PCIE_SPEED_16_0GT ? 16000*128/130 : \
> (speed) == PCIE_SPEED_8_0GT ? 8000*128/130 : \
> --
> 2.39.2
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2024-01-02 17:27 [PATCH 1/1] PCI: 64GT/s uses 1b/1b encoding Ilpo Järvinen
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