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s390/pci: Expose new port attribute for PCIe functions
Add SysFS attribute that provides the port number for PCI functions representing a single port of a multi-port device. Signed-off-by: Alexander Schmidt <alexs@linux.ibm.com> Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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4 changed files with 6 additions and 1 deletions
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@ -108,6 +108,7 @@ struct zpci_dev {
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u8 pfgid; /* function group ID */
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u8 pft; /* pci function type */
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u16 domain;
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u8 port;
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struct mutex lock;
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u8 pfip[CLP_PFIP_NR_SEGMENTS]; /* pci function internal path */
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@ -102,7 +102,8 @@ struct clp_rsp_query_pci {
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u16 pchid;
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__le32 bar[PCI_STD_NUM_BARS];
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u8 pfip[CLP_PFIP_NR_SEGMENTS]; /* pci function internal path */
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u32 : 16;
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u16 : 12;
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u16 port : 4;
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u8 fmb_len;
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u8 pft; /* pci function type */
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u64 sdma; /* start dma as */
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@ -155,6 +155,7 @@ static int clp_store_query_pci_fn(struct zpci_dev *zdev,
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zdev->pfgid = response->pfgid;
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zdev->pft = response->pft;
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zdev->vfn = response->vfn;
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zdev->port = response->port;
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zdev->uid = response->uid;
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zdev->fmb_length = sizeof(u32) * response->fmb_len;
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@ -33,6 +33,7 @@ zpci_attr(pchid, "0x%04x\n", pchid);
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zpci_attr(pfgid, "0x%02x\n", pfgid);
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zpci_attr(vfn, "0x%04x\n", vfn);
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zpci_attr(pft, "0x%02x\n", pft);
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zpci_attr(port, "%d\n", port);
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zpci_attr(uid, "0x%x\n", uid);
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zpci_attr(segment0, "0x%02x\n", pfip[0]);
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zpci_attr(segment1, "0x%02x\n", pfip[1]);
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@ -142,6 +143,7 @@ static struct attribute *zpci_dev_attrs[] = {
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&dev_attr_pchid.attr,
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&dev_attr_pfgid.attr,
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&dev_attr_pft.attr,
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&dev_attr_port.attr,
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&dev_attr_vfn.attr,
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&dev_attr_uid.attr,
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&dev_attr_recover.attr,
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