Messages in this thread Patch in this message | | | From | Kamal Mostafa <> | Subject | [PATCH 3.13 107/212] powerpc/powernv: Reset root port in firmware | Date | Tue, 17 Jun 2014 14:43:21 -0700 |
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3.13.11.4 -stable review patch. If anyone has any objections, please let me know.
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From: Gavin Shan <gwshan@linux.vnet.ibm.com>
commit 372cf1244d7c271806b83b32b09a1c8b1b31b353 upstream.
Resetting root port has more stuff to do than that for PCIe switch ports and we should have resetting root port done in firmware instead of the kernel itself. The problem was introduced by commit 5b2e198e ("powerpc/powernv: Rework EEH reset").
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- arch/powerpc/platforms/powernv/eeh-ioda.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c index 27e5f02..aba71c3 100644 --- a/arch/powerpc/platforms/powernv/eeh-ioda.c +++ b/arch/powerpc/platforms/powernv/eeh-ioda.c @@ -549,7 +549,8 @@ static int ioda_eeh_reset(struct eeh_pe *pe, int option) ret = ioda_eeh_phb_reset(hose, option); } else { bus = eeh_pe_bus_get(pe); - if (pci_is_root_bus(bus)) + if (pci_is_root_bus(bus) || + pci_is_root_bus(bus->parent)) ret = ioda_eeh_root_reset(hose, option); else ret = ioda_eeh_bridge_reset(hose, bus->self, option); -- 1.9.1
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