public inbox for linux-pci@vger.kernel.org
 help / color / mirror / Atom feed
From: "Håkon Bugge" <haakon.bugge@oracle.com>
To: Bjorn Helgaas <bhelgaas@google.com>,
	Niklas Schnelle <schnelle@linux.ibm.com>
Cc: Alex Williamson <alex@shazbot.org>,
	Johannes Thumshirn <morbidrsa@gmail.com>,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-acpi@vger.kernel.org
Subject: [PATCH v4 0/2] PCI: Init RCB from pci_configure_device and fix program_hpx_type2
Date: Thu, 29 Jan 2026 18:52:31 +0100	[thread overview]
Message-ID: <20260129175237.727059-1-haakon.bugge@oracle.com> (raw)

This series add the initialization of the Link Control register's RCB
to pci_configure_rcb() called from pci_configure_device() and also
cleans up the incorrect program_hpx_type2():

1. It should only be called when we own the PCIe native hotplug and
   not the AER ownership
2. It should only manipulate the AER-bits

In addition, the second commit adds a warning if the _HPX type2
record attempts to modify the Link Control register.

The programming of the device's RCB is constrained to the device types
where it is applicable and also skips VFs. If the Root Port's RCB
cannot be determined, we also skip the programming of the device's
RCB.

Then, we program the device's RCB according to the Root Port's setting.

Håkon Bugge (2):
  PCI: Initialize RCB from pci_configure_device()
  PCI/ACPI: Restrict program_hpx_type2() to AER bits

 drivers/pci/pci-acpi.c | 65 ++++++++++++++++++------------------------
 drivers/pci/pci.h      |  3 ++
 drivers/pci/pcie/aer.c |  3 --
 drivers/pci/probe.c    | 33 +++++++++++++++++++++
 4 files changed, 63 insertions(+), 41 deletions(-)

--
2.43.5


             reply	other threads:[~2026-01-29 17:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-29 17:52 Håkon Bugge [this message]
2026-01-29 17:52 ` [PATCH v4 1/2] PCI: Initialize RCB from pci_configure_device() Håkon Bugge
2026-01-29 17:52 ` [PATCH v4 2/2] PCI/ACPI: Restrict program_hpx_type2() to AER bits Håkon Bugge
2026-01-29 18:50 ` [PATCH v4 0/2] PCI: Init RCB from pci_configure_device and fix program_hpx_type2 Bjorn Helgaas
2026-01-30 16:54   ` Haakon Bugge

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=20260129175237.727059-1-haakon.bugge@oracle.com \
    --to=haakon.bugge@oracle.com \
    --cc=alex@shazbot.org \
    --cc=bhelgaas@google.com \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=morbidrsa@gmail.com \
    --cc=schnelle@linux.ibm.com \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox