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authorBjorn Helgaas <bhelgaas@google.com>2015-07-17 23:15:19 +0300
committerBjorn Helgaas <bhelgaas@google.com>2015-08-13 23:57:21 +0300
commitd544d75ac96aa1b0a8a378826626a0fbd8ce4380 (patch)
treec289b1bd150373bfea74cbf2a224d9bd2569ae28 /include/linux/pci.h
parentedc90fee916b4f0d14af9c6b5c08666747488ef8 (diff)
downloadlinux-d544d75ac96aa1b0a8a378826626a0fbd8ce4380.tar.xz
PCI: Embed ATS info directly into struct pci_dev
The pci_ats struct is small and will get smaller, so I don't think it's worth allocating it separately from the pci_dev struct. Embed the ATS fields directly into struct pci_dev. 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.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 1817819ba57b..8bc16b5e4747 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -343,6 +343,7 @@ struct pci_dev {
unsigned int msi_enabled:1;
unsigned int msix_enabled:1;
unsigned int ari_enabled:1; /* ARI forwarding */
+ unsigned int ats_enabled:1; /* Address Translation Service */
unsigned int is_managed:1;
unsigned int needs_freset:1; /* Dev requires fundamental reset */
unsigned int state_saved:1;
@@ -375,7 +376,10 @@ struct pci_dev {
struct pci_sriov *sriov; /* SR-IOV capability related */
struct pci_dev *physfn; /* the PF this VF is associated with */
};
- struct pci_ats *ats; /* Address Translation Service */
+ int ats_cap; /* ATS Capability offset */
+ int ats_stu; /* ATS Smallest Translation Unit */
+ int 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 */
size_t romlen; /* Length of ROM if it's not from the BAR */
@@ -1297,10 +1301,8 @@ void ht_destroy_irq(unsigned int irq);
#ifdef CONFIG_PCI_ATS
/* Address Translation Service */
void pci_ats_init(struct pci_dev *dev);
-void pci_ats_free(struct pci_dev *dev);
#else
static inline void pci_ats_init(struct pci_dev *dev) { }
-static inline void pci_ats_free(struct pci_dev *dev) { }
#endif
void pci_cfg_access_lock(struct pci_dev *dev);