From: Bjorn Helgaas <helgaas@kernel.org>
To: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Cc: Gustavo Pimentel <Gustavo.Pimentel@synopsys.com>,
Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] PCI: 64GT/s uses 1b/1b encoding
Date: Tue, 2 Jan 2024 12:14:15 -0600 [thread overview]
Message-ID: <20240102181415.GA1732470@bhelgaas> (raw)
In-Reply-To: <20240102172701.65501-1-ilpo.jarvinen@linux.intel.com>
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
>
prev parent reply other threads:[~2024-01-02 18:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-02 17:27 [PATCH 1/1] PCI: 64GT/s uses 1b/1b encoding Ilpo Järvinen
2024-01-02 18:14 ` Bjorn Helgaas [this message]
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