[RFC PATCH v4 14/38] PCI: endpoint: pci-epf-vntb: Implement .get_private_data() callback
From: Koichiro Den <hidden>
Date: 2026-01-18 13:55:23
Also in:
dmaengine, linux-devicetree, linux-doc, linux-iommu, linux-kselftest, linux-pci, linux-renesas-soc, lkml
Subsystem:
ntb driver core, pci endpoint subsystem, pci subsystem, the rest · Maintainers:
Jon Mason, Dave Jiang, Allen Hubbe, Manivannan Sadhasivam, Krzysztof Wilczyński, Bjorn Helgaas, Linus Torvalds
Implement the new get_private_data() operation for the EPF vNTB driver to expose its associated EPC device to NTB subsystems. Signed-off-by: Koichiro Den <redacted> --- drivers/pci/endpoint/functions/pci-epf-vntb.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
index 98128c2c5079..9fbc27000f77 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c@@ -1747,6 +1747,15 @@ static int vntb_epf_link_disable(struct ntb_dev *ntb) return 0; } +static void *vntb_epf_get_private_data(struct ntb_dev *ndev) +{ + struct epf_ntb *ntb = ntb_ndev(ndev); + + if (!ntb || !ntb->epf) + return NULL; + return ntb->epf->epc; +} + static const struct ntb_dev_ops vntb_epf_ops = { .mw_count = vntb_epf_mw_count, .spad_count = vntb_epf_spad_count,
@@ -1771,6 +1780,7 @@ static const struct ntb_dev_ops vntb_epf_ops = { .db_clear_mask = vntb_epf_db_clear_mask, .db_clear = vntb_epf_db_clear, .link_disable = vntb_epf_link_disable, + .get_private_data = vntb_epf_get_private_data, }; static int pci_vntb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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2.51.0