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authorBjorn Helgaas <bhelgaas@google.com>2018-10-20 11:45:33 -0500
committerBjorn Helgaas <bhelgaas@google.com>2018-10-20 11:45:33 -0500
commit1734715493e010d034ae8d65c9a228ee7ad24a08 (patch)
tree8e9bdb47355c40fe70f4d732656aebbe5d27b62e /include/linux/pci.h
parent0af6166395130b87713550c84c9518332f27cc28 (diff)
parentc6925093d0b28329ad3a486f5b0345c2c192ae9a (diff)
Merge branch 'pci/peer-to-peer'
- Add PCI support for peer-to-peer DMA (Logan Gunthorpe) - Add sysfs group for PCI peer-to-peer memory statistics (Logan Gunthorpe) - Add PCI peer-to-peer DMA scatterlist mapping interface (Logan Gunthorpe) - Add PCI configfs/sysfs helpers for use by peer-to-peer users (Logan Gunthorpe) - Add PCI peer-to-peer DMA driver writer's documentation (Logan Gunthorpe) - Add block layer flag to indicate driver support for PCI peer-to-peer DMA (Logan Gunthorpe) - Map Infiniband scatterlists for peer-to-peer DMA if they contain P2P memory (Logan Gunthorpe) - Register nvme-pci CMB buffer as PCI peer-to-peer memory (Logan Gunthorpe) - Add nvme-pci support for PCI peer-to-peer memory in requests (Logan Gunthorpe) - Use PCI peer-to-peer memory in nvme (Stephen Bates, Steve Wise, Christoph Hellwig, Logan Gunthorpe) * pci/peer-to-peer: nvmet: Optionally use PCI P2P memory nvmet: Introduce helper functions to allocate and free request SGLs nvme-pci: Add support for P2P memory in requests nvme-pci: Use PCI p2pmem subsystem to manage the CMB IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]() block: Add PCI P2P flag for request queue PCI/P2PDMA: Add P2P DMA driver writer's documentation docs-rst: Add a new directory for PCI documentation PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset PCI/P2PDMA: Add sysfs group to display p2pmem stats PCI/P2PDMA: Support peer-to-peer memory
Diffstat (limited to 'include/linux/pci.h')
-rw-r--r--include/linux/pci.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 7c4802de1e3a..f9e04c170301 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -281,6 +281,7 @@ struct pcie_link_state;
struct pci_vpd;
struct pci_sriov;
struct pci_ats;
+struct pci_p2pdma;
/* The pci_dev structure describes PCI devices */
struct pci_dev {
@@ -441,6 +442,9 @@ struct pci_dev {
#ifdef CONFIG_PCI_PASID
u16 pasid_features;
#endif
+#ifdef CONFIG_PCI_P2PDMA
+ struct pci_p2pdma *p2pdma;
+#endif
phys_addr_t rom; /* Physical address if not from BAR */
size_t romlen; /* Length if not from BAR */
char *driver_override; /* Driver name to force a match */