Commit e6ab7490 authored by Alexander Schmidt's avatar Alexander Schmidt Committed by Vasily Gorbik
Browse files

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: default avatarAlexander Schmidt <alexs@linux.ibm.com>
Signed-off-by: default avatarPierre Morel <pmorel@linux.ibm.com>
Reviewed-by: default avatarNiklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
parent ae83d0b4

arch/s390/include/asm/pci.h

+1 −0
Original line number Diff line number Diff line
@@ -108,6 +108,7 @@ struct zpci_dev { 
	u8		pfgid;		/* function group ID */

	u8		pft;		/* pci function type */

	u16		domain;

	u8		port;



	struct mutex lock;

	u8 pfip[CLP_PFIP_NR_SEGMENTS];	/* pci function internal path */

arch/s390/include/asm/pci_clp.h

+2 −1
Original line number Diff line number Diff line
@@ -102,7 +102,8 @@ struct clp_rsp_query_pci { 
	u16 pchid;

	__le32 bar[PCI_STD_NUM_BARS];

	u8 pfip[CLP_PFIP_NR_SEGMENTS];	/* pci function internal path */

	u32			: 16;

	u16			: 12;

	u16 port		:  4;

	u8 fmb_len;

	u8 pft;				/* pci function type */

	u64 sdma;			/* start dma as */

arch/s390/pci/pci_clp.c

+1 −0
Original line number Diff line number Diff line
@@ -155,6 +155,7 @@ static int clp_store_query_pci_fn(struct zpci_dev *zdev, 
	zdev->pfgid = response->pfgid;

	zdev->pft = response->pft;

	zdev->vfn = response->vfn;

	zdev->port = response->port;

	zdev->uid = response->uid;

	zdev->fmb_length = sizeof(u32) * response->fmb_len;

arch/s390/pci/pci_sysfs.c

+2 −0
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ zpci_attr(pchid, "0x%04x\n", pchid); 
zpci_attr(pfgid, "0x%02x\n", pfgid);

zpci_attr(vfn, "0x%04x\n", vfn);

zpci_attr(pft, "0x%02x\n", pft);

zpci_attr(port, "%d\n", port);

zpci_attr(uid, "0x%x\n", uid);

zpci_attr(segment0, "0x%02x\n", pfip[0]);

zpci_attr(segment1, "0x%02x\n", pfip[1]);
@@ -142,6 +143,7 @@ static struct attribute *zpci_dev_attrs[] = { 
	&dev_attr_pchid.attr,

	&dev_attr_pfgid.attr,

	&dev_attr_pft.attr,

	&dev_attr_port.attr,

	&dev_attr_vfn.attr,

	&dev_attr_uid.attr,

	&dev_attr_recover.attr,

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