From: "Pali Rohár" <pali@kernel.org>
To: "Martin Mares" <mj@ucw.cz>, "Bjorn Helgaas" <helgaas@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Matthew Wilcox" <willy@infradead.org>,
linux-pci@vger.kernel.org
Subject: [PATCH pciutils 1/4] libpci: Add new option PCI_FILL_PARENT
Date: Fri, 21 Jan 2022 15:22:55 +0100 [thread overview]
Message-ID: <20220121142258.28170-2-pali@kernel.org> (raw)
In-Reply-To: <20220121142258.28170-1-pali@kernel.org>
This change extends libpci and allows providers to fill parent pci_dev.
This is useful to retrieve topology as it is reported by the system itself.
---
lib/pci.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/pci.h b/lib/pci.h
index c13387e2b4b1..de031f7a416b 100644
--- a/lib/pci.h
+++ b/lib/pci.h
@@ -148,6 +148,7 @@ struct pci_dev {
u8 prog_if; /* Programming interface for device_class */
u8 rev_id; /* Revision id */
u16 subsys_vendor_id, subsys_id; /* Subsystem vendor id and subsystem id */
+ struct pci_dev *parent; /* Parent device */
/* Fields used internally */
struct pci_access *access;
@@ -217,6 +218,7 @@ char *pci_get_string_property(struct pci_dev *d, u32 prop) PCI_ABI;
#define PCI_FILL_REVID 0x00040000
#define PCI_FILL_SUBSYS 0x00080000
#define PCI_FILL_DRIVER 0x00100000
+#define PCI_FILL_PARENT 0x00200000
void pci_setup_cache(struct pci_dev *, u8 *cache, int len) PCI_ABI;
--
2.20.1
next prev parent reply other threads:[~2022-01-21 14:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-21 14:22 [PATCH pciutils 0/4] Support for PCI_FILL_PARENT Pali Rohár
2022-01-21 14:22 ` Pali Rohár [this message]
2022-01-21 14:22 ` [PATCH pciutils 2/4] libpci: sysfs: Implement support " Pali Rohár
2022-01-21 14:22 ` [PATCH pciutils 3/4] lspci: Build tree based on PCI_FILL_PARENT information Pali Rohár
2022-01-21 14:22 ` [PATCH pciutils 4/4] lspci: Do not show -[00]- bus in tree output Pali Rohár
2022-01-21 14:51 ` [PATCH pciutils 0/4] Support for PCI_FILL_PARENT Martin Mareš
2022-01-21 15:21 ` Pali Rohár
2022-01-21 15:28 ` Martin Mareš
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