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| author | Alexander Schmidt <alexs@linux.ibm.com> | 2020-02-28 10:31:13 -0500 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-04-28 13:49:46 +0200 |
| commit | e6ab7490ffaed83d6581f512e66c7c8cc6f58c2d (patch) | |
| tree | 6bc7ba261847694c51d5336c6b67854f02f23c19 | |
| parent | ae83d0b416db002fe95601e7f97f64b59514d936 (diff) | |
| download | linux-e6ab7490ffaed83d6581f512e66c7c8cc6f58c2d.tar.bz2 | |
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>
| -rw-r--r-- | arch/s390/include/asm/pci.h | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/pci_clp.h | 3 | ||||
| -rw-r--r-- | arch/s390/pci/pci_clp.c | 1 | ||||
| -rw-r--r-- | arch/s390/pci/pci_sysfs.c | 2 |
4 files changed, 6 insertions, 1 deletions
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 7485ee561fec..11560bfefe48 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -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 */ diff --git a/arch/s390/include/asm/pci_clp.h b/arch/s390/include/asm/pci_clp.h index bd2cb4ea7d93..d8122f534f54 100644 --- a/arch/s390/include/asm/pci_clp.h +++ b/arch/s390/include/asm/pci_clp.h @@ -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 */ diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index ea794ae755ae..f7bca8cfa92c 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -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; diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c index 215f17437a4f..8ea8d04ed86d 100644 --- a/arch/s390/pci/pci_sysfs.c +++ b/arch/s390/pci/pci_sysfs.c @@ -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, |