All of lore.kernel.org
 help / color / mirror / Atom feed
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


  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220121142258.28170-2-pali@kernel.org \
    --to=pali@kernel.org \
    --cc=helgaas@kernel.org \
    --cc=kw@linux.com \
    --cc=linux-pci@vger.kernel.org \
    --cc=mj@ucw.cz \
    --cc=willy@infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.