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| author | Bjorn Helgaas <bhelgaas@google.com> | 2015-07-17 15:27:34 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-08-13 15:57:22 -0500 |
| commit | 67930995d7fb8ae7d2078822b563010b289ace2e (patch) | |
| tree | 1ff5b514c36b7f8cd11fef1d99bbb7bf367e6c1d /include/linux/pci.h | |
| parent | d544d75ac96aa1b0a8a378826626a0fbd8ce4380 (diff) | |
| download | lwn-67930995d7fb8ae7d2078822b563010b289ace2e.tar.gz lwn-67930995d7fb8ae7d2078822b563010b289ace2e.zip | |
PCI: Reduce size of ATS structure elements
The extended capabilities list is linked with 12-bit pointers, and the ATS
Smallest Translation Unit and Invalidate Queue Depth fields are both 5
bits.
Use u16 and u8 to hold the extended capability address and the stu and qdep
values. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 8bc16b5e4747..238b77e8ca41 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -376,9 +376,9 @@ struct pci_dev { struct pci_sriov *sriov; /* SR-IOV capability related */ struct pci_dev *physfn; /* the PF this VF is associated with */ }; - int ats_cap; /* ATS Capability offset */ - int ats_stu; /* ATS Smallest Translation Unit */ - int ats_qdep; /* ATS Invalidate Queue Depth */ + u16 ats_cap; /* ATS Capability offset */ + u8 ats_stu; /* ATS Smallest Translation Unit */ + u8 ats_qdep; /* ATS Invalidate Queue Depth */ atomic_t ats_ref_cnt; /* number of VFs with ATS enabled */ #endif phys_addr_t rom; /* Physical address of ROM if it's not from the BAR */ |