From: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
To: jingoohan1@gmail.com, lpieralisi@kernel.org,
kwilczynski@kernel.org,
Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Cc: robh@kernel.org, bhelgaas@google.com, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org, elder@riscstar.com
Subject: Re: [PATCH] PCI: dwc: Warn if the MSI ctrl doesn't have an associated platform IRQ in DT
Date: Sat, 08 Nov 2025 15:48:21 +0530 [thread overview]
Message-ID: <176259710138.9726.16225246756188234387.b4-ty@kernel.org> (raw)
In-Reply-To: <20251030171346.5129-1-manivannan.sadhasivam@oss.qualcomm.com>
On Thu, 30 Oct 2025 22:43:46 +0530, Manivannan Sadhasivam wrote:
> The internal MSI controller in DWC IPs supports multiple MSI ctrls, each
> capable of receiving 32 MSI vectors per ctrl. And each MSI ctrl requires a
> dedicated MSI platform IRQ in devicetree to function. Otherwise, MSIs won't
> be received from the endpoints.
>
> Currently, dw_pcie_msi_host_init() only registers the IRQ handler if the
> MSI ctrl has the associated MSI platform IRQ in DT. But it doesn't warn if
> the IRQ is not available. This may cause developers/users to believe that
> the platform supports MSI vectors from all MSI ctrls, but it doesn't.
>
> [...]
Applied, thanks!
[1/1] PCI: dwc: Warn if the MSI ctrl doesn't have an associated platform IRQ in DT
commit: 571dd53fca80508de39cb2edc49a43be3ea5ae12
Best regards,
--
Manivannan Sadhasivam <mani@kernel.org>
next prev parent reply other threads:[~2025-11-08 10:18 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-30 17:13 Manivannan Sadhasivam
2025-10-30 17:40 ` Alex Elder
2025-11-08 10:18 ` Manivannan Sadhasivam [this message]
2025-11-11 10:31 ` Manivannan Sadhasivam
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=176259710138.9726.16225246756188234387.b4-ty@kernel.org \
--to=manivannan.sadhasivam@oss.qualcomm.com \
--cc=bhelgaas@google.com \
--cc=elder@riscstar.com \
--cc=jingoohan1@gmail.com \
--cc=kwilczynski@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=lpieralisi@kernel.org \
--cc=robh@kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®