From: Wei Fang <wei.fang@nxp.com>
To: inochiama@gmail.com
Cc: Jonathan.Cameron@huwei.com, bhelgaas@google.com, dlan@gentoo.org,
haiyangz@microsoft.com, jgg@ziepe.ca, jgross@suse.com,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
looong.bin@gmail.com, lpieralisi@kernel.org, maz@kernel.org,
nicolinc@nvidia.com, shradhagupta@linux.microsoft.com,
tglx@linutronix.de, unicorn_wang@outlook.com
Subject: [PATCH v2 2/4] PCI/MSI: Add startup/shutdown for per device domains
Date: Wed, 27 Aug 2025 17:39:11 +0800 [thread overview]
Message-ID: <20250827093911.1218640-1-wei.fang@nxp.com> (raw)
In-Reply-To: <20250813232835.43458-3-inochiama@gmail.com>
We found an issue that the ENETC network port of our i.MX95 platform
(arm64) does not work based the latest linux-next tree. According to
my observation, the MSI-X interrupts statistics from
"cat /proc/interrupts" are all 0.
root@imx95evk:~# cat /proc/interrupts | grep eth0
123: 0 0 0 0 0 0 ITS-PCI-MSIX-0002:00:00.0 1 Edge eth0-rxtx0
124: 0 0 0 0 0 0 ITS-PCI-MSIX-0002:00:00.0 2 Edge eth0-rxtx1
125: 0 0 0 0 0 0 ITS-PCI-MSIX-0002:00:00.0 3 Edge eth0-rxtx2
126: 0 0 0 0 0 0 ITS-PCI-MSIX-0002:00:00.0 4 Edge eth0-rxtx3
127: 0 0 0 0 0 0 ITS-PCI-MSIX-0002:00:00.0 5 Edge eth0-rxtx4
128: 0 0 0 0 0 0 ITS-PCI-MSIX-0002:00:00.0 6 Edge eth0-rxtx5
So I reverted this patch and then the MSI-X interrupts return to normal.
root@imx95evk:~# cat /proc/interrupts | grep eth0
123: 4365 0 0 0 0 0 ITS-PCI-MSIX-0002:00:00.0 1 Edge eth0-rxtx0
124: 0 194 0 0 0 0 ITS-PCI-MSIX-0002:00:00.0 2 Edge eth0-rxtx1
125: 0 0 227 0 0 0 ITS-PCI-MSIX-0002:00:00.0 3 Edge eth0-rxtx2
126: 0 0 0 219 0 0 ITS-PCI-MSIX-0002:00:00.0 4 Edge eth0-rxtx3
127: 0 0 0 0 176 0 ITS-PCI-MSIX-0002:00:00.0 5 Edge eth0-rxtx4
128: 0 0 0 0 0 233 ITS-PCI-MSIX-0002:00:00.0 6 Edge eth0-rxtx5
It looks like that this patch causes this issue, but I don't know about
the PCI MSI driver, so please help investigate this issue, thanks.
next prev parent reply other threads:[~2025-08-27 10:00 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-13 23:28 [PATCH v2 0/4] irqchip/sg2042-msi: Fix broken affinity setting Inochi Amaoto
2025-08-13 23:28 ` [PATCH v2 1/4] genirq: Add irq_chip_(startup/shutdown)_parent() Inochi Amaoto
2025-08-23 19:28 ` [tip: irq/core] " tip-bot2 for Inochi Amaoto
2025-08-13 23:28 ` [PATCH v2 2/4] PCI/MSI: Add startup/shutdown for per device domains Inochi Amaoto
2025-08-20 20:54 ` Bjorn Helgaas
2025-08-23 19:08 ` Thomas Gleixner
2025-08-23 19:30 ` [tip: irq/drivers] " tip-bot2 for Inochi Amaoto
2025-08-26 19:45 ` [PATCH v2 2/4] " Anders Roxell
2025-08-26 22:09 ` Nathan Chancellor
2025-08-27 10:33 ` Mark Brown
2025-08-26 22:33 ` Inochi Amaoto
2025-08-26 23:28 ` Inochi Amaoto
2025-08-27 0:47 ` Nathan Chancellor
2025-08-27 8:17 ` Naresh Kamboju
2025-08-27 9:45 ` Inochi Amaoto
2025-08-27 9:44 ` Inochi Amaoto
2025-08-27 9:39 ` Wei Fang [this message]
2025-08-27 10:14 ` Chen Wang
2025-08-27 10:14 ` Inochi Amaoto
2025-08-13 23:28 ` [PATCH v2 3/4] irqchip/sg2042-msi: Fix broken affinity setting Inochi Amaoto
2025-08-23 19:30 ` [tip: irq/drivers] " tip-bot2 for Inochi Amaoto
2025-08-13 23:28 ` [PATCH v2 4/4] irqchip/sg2042-msi: Set MSI_FLAG_MULTI_PCI_MSI flags for SG2044 Inochi Amaoto
2025-08-23 19:30 ` [tip: irq/drivers] " tip-bot2 for Inochi Amaoto
2025-08-21 6:38 ` [PATCH v2 0/4] irqchip/sg2042-msi: Fix broken affinity setting Chen Wang
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