linux-kernel - 回覆: [PATCH v3 08/10] PCI: Add FMT and TYPE definition for TLP header

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Message-ID:
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Date: Fri, 5 Sep 2025 00:42:55 +0000
From: Jacky Chou <jacky_chou@...eedtech.com>
To: Bjorn Helgaas <helgaas@...nel.org>
CC: "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
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Subject:
 回覆: [PATCH v3 08/10] PCI: Add FMT and TYPE definition for TLP header

Hi Bjorn,

Thank you for your reply.

> > diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index
> > 34f65d69662e..45d47d6c4f53 100644
> > --- a/drivers/pci/pci.h
> > +++ b/drivers/pci/pci.h
> > @@ -81,6 +81,18 @@ struct pcie_tlp_log;
> >  #define PCIE_MSG_CODE_DEASSERT_INTC	0x26
> >  #define PCIE_MSG_CODE_DEASSERT_INTD	0x27
> >
> > +/* Format of TLP; PCIe r5.0, sec 2.2.1 */
> 
> Please update to PCIe r7.0.
> 

I will update this in next version.

> > +#define PCIE_TLP_FMT_3DW_NO_DATA	0x00 /* 3DW header, no data */
> > +#define PCIE_TLP_FMT_4DW_NO_DATA	0x01 /* 4DW header, no data */
> > +#define PCIE_TLP_FMT_3DW_DATA		0x02 /* 3DW header, with data */
> > +#define PCIE_TLP_FMT_4DW_DATA		0x03 /* 4DW header, with data */
> > +
> > +/* Type of TLP; PCIe r5.0, sec 2.2.1 */
> > +#define PCIE_TLP_TYPE_CFG0_RD		0x04 /* Config Type 0 Read
> Request */
> > +#define PCIE_TLP_TYPE_CFG0_WR		0x04 /* Config Type 0 Write
> Request */
> > +#define PCIE_TLP_TYPE_CFG1_RD		0x05 /* Config Type 1 Read
> Request */
> > +#define PCIE_TLP_TYPE_CFG1_WR		0x05 /* Config Type 1 Write
> Request */

Thanks,
Jacky