From: "Rafał Miłecki" <zajec5@gmail.com>
To: Bjorn Helgaas <bhelgaas@google.com>, Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
Jon Mason <jonmason@broadcom.com>, Oza Oza <oza.oza@broadcom.com>,
JD Zheng <jiandong.zheng@broadcom.com>,
Andy Gospodarek <gospo@broadcom.com>
Cc: linux-pci@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com,
linux-arm-kernel@lists.infradead.org
Subject: pcie-iproc: broken 2nd (& 3rd?) controller support by c3245a566400 ("PCI: iproc: Request host bridge window resources")
Date: Wed, 8 Mar 2017 13:56:35 +0100 [thread overview]
Message-ID: <faab6b85-58e8-3e62-8763-56a94b13fba1@gmail.com> (raw)
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WARNING: multiple messages have this Message-ID (diff)
From: zajec5@gmail.com (Rafał Miłecki)
To: linux-arm-kernel@lists.infradead.org
Subject: pcie-iproc: broken 2nd (& 3rd?) controller support by c3245a566400 ("PCI: iproc: Request host bridge window resources")
Date: Wed, 8 Mar 2017 13:56:35 +0100 [thread overview]
Message-ID: <faab6b85-58e8-3e62-8763-56a94b13fba1@gmail.com> (raw)
Hi,
I just tried upgrading BCM5301X from 4.4 to 4.9 and noticed I don't see card
connected to the 2nd controller.
[ 2.593534] pcie_iproc_bcma bcma0:7: PCI host bridge to bus 0000:00
[ 2.599786] pci_bus 0000:00: root bus resource [mem 0x08000000-0x0fffffff]
[ 2.606663] pcie_iproc_bcma bcma0:7: link: UP
[ 2.611316] PCI: bus0: Fast back to back transfers disabled
[ 2.616899] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 2.625395] PCI: bus1: Fast back to back transfers disabled
[ 2.631011] pci 0000:00:00.0: BAR 8: assigned [mem 0x08000000-0x080fffff]
[ 2.637795] pci 0000:01:00.0: BAR 0: assigned [mem 0x08000000-0x08007fff 64bit]
[ 2.645091] pci 0000:00:00.0: PCI bridge to [bus 01]
[ 2.650042] pci 0000:00:00.0: bridge window [mem 0x08000000-0x080fffff]
[ 2.657199] pcie_iproc_bcma bcma0:8: resource collision: [mem 0x40000000-0x47ffffff] conflicts with PCIe MEM space [mem 0x40000000-0x47ffffff]
[ 2.669946] pcie_iproc_bcma bcma0:8: PCIe controller setup failed
[ 2.676032] pcie_iproc_bcma: probe of bcma0:8 failed with error -16
This used to work with older kernels because there wasn't any collision check:
[ 2.587117] pcie_iproc_bcma bcma0:7: PCI host bridge to bus 0000:00
[ 2.593378] pci_bus 0000:00: root bus resource [mem 0x08000000-0x0fffffff]
[ 2.600256] pcie_iproc_bcma bcma0:7: link: UP
[ 2.604888] PCI: bus0: Fast back to back transfers disabled
[ 2.610474] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 2.618973] PCI: bus1: Fast back to back transfers disabled
[ 2.624591] pci 0000:00:00.0: BAR 8: assigned [mem 0x08000000-0x080fffff]
[ 2.631382] pci 0000:01:00.0: BAR 0: assigned [mem 0x08000000-0x08007fff 64bit]
[ 2.638686] pci 0000:00:00.0: PCI bridge to [bus 01]
[ 2.643633] pci 0000:00:00.0: bridge window [mem 0x08000000-0x080fffff]
[ 2.777118] pcie_iproc_bcma bcma0:8: PCI host bridge to bus 0001:00
[ 2.783367] pci_bus 0001:00: root bus resource [mem 0x40000000-0x47ffffff]
[ 2.790245] pcie_iproc_bcma bcma0:8: link: UP
[ 2.794862] PCI: bus0: Fast back to back transfers disabled
[ 2.800452] pci 0001:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 2.808946] PCI: bus1: Fast back to back transfers disabled
[ 2.814558] pci 0001:00:00.0: BAR 8: assigned [mem 0x40000000-0x400fffff]
[ 2.821352] pci 0001:01:00.0: BAR 0: assigned [mem 0x40000000-0x40007fff 64bit]
[ 2.828650] pci 0001:00:00.0: PCI bridge to [bus 01]
[ 2.833600] pci 0001:00:00.0: bridge window [mem 0x40000000-0x400fffff]
I guess the check is OK after all and the real problem is iproc driver assigning
the same resource.
Broadcom team: could you take a look at this, please?
--
Rafa?
next reply other threads:[~2017-03-08 12:56 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-08 12:56 Rafał Miłecki [this message]
2017-03-08 12:56 ` pcie-iproc: broken 2nd (& 3rd?) controller support by c3245a566400 ("PCI: iproc: Request host bridge window resources") Rafał Miłecki
2017-03-08 17:22 ` Ray Jui
2017-03-08 23:28 ` Rafał Miłecki
2017-03-08 23:28 ` Rafał Miłecki
2017-03-09 0:31 ` Ray Jui
2017-03-09 7:39 ` Rafał Miłecki
2017-03-09 7:39 ` Rafał Miłecki
2017-03-09 18:22 ` Bjorn Helgaas
2017-03-09 18:22 ` Bjorn Helgaas
2017-03-10 16:02 ` Rafał Miłecki
2017-03-10 16:02 ` Rafał Miłecki
2017-03-10 17:21 ` Ray Jui
2017-03-10 17:21 ` Ray Jui
2017-03-10 17:47 ` Bjorn Helgaas
2017-03-10 17:47 ` Bjorn Helgaas
2017-03-10 21:11 ` Rafał Miłecki
2017-03-10 21:11 ` Rafał Miłecki
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