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s390/pci: Expose new port attribute for PCIe functions

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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>
This commit is contained in:
Alexander Schmidt
2020-02-28 10:31:13 -05:00
committed by Vasily Gorbik
parent ae83d0b416
commit e6ab7490ff
4 changed files with 6 additions and 1 deletions
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3
arch/s390/include/asm/pci_clp.h
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@@ -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 */