From: Gavin Shan <gwshan@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: ruscur@russell.cc, mpe@ellerman.id.au,
Gavin Shan <gwshan@linux.vnet.ibm.com>
Subject: [PATCH v15 11/12] powerpc/eeh: Don't remove passed VFs
Date: Fri, 4 Mar 2016 10:53:13 +1100 [thread overview]
Message-ID: <1457049194-9281-12-git-send-email-gwshan@linux.vnet.ibm.com> (raw)
In-Reply-To: <1457049194-9281-1-git-send-email-gwshan@linux.vnet.ibm.com>
When we have partial hotplug as part of the error recovery on PF,
the VFs that are bound with vfio-pci driver will experience hotplug.
That's not allowed.
This checks if the VF PE is passed or not. If it does, we leave
the VF without removing it.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Russell Currey <ruscur@russell.cc>
---
arch/powerpc/kernel/eeh_driver.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index 6c59de8..fb6207d 100644
--- a/arch/powerpc/kernel/eeh_driver.c
+++ b/arch/powerpc/kernel/eeh_driver.c
@@ -455,6 +455,9 @@ static void *eeh_rmv_device(void *data, void *userdata)
if (driver) {
eeh_pcid_put(dev);
if (removed &&
+ eeh_pe_passed(edev->pe))
+ return NULL;
+ if (removed &&
driver->err_handler &&
driver->err_handler->error_detected &&
driver->err_handler->slot_reset)
--
2.1.0
next prev parent reply other threads:[~2016-03-03 23:54 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-03 23:53 [PATCH v15 00/12] EEH Support for SRIOV VFs Gavin Shan
2016-03-03 23:53 ` [PATCH v15 01/12] PCI/IOV: Rename and export virtfn_{add, remove} Gavin Shan
2016-03-09 12:51 ` [v15,01/12] " Michael Ellerman
2016-03-03 23:53 ` [PATCH v15 02/12] PCI: Add pcibios_bus_add_device() weak function Gavin Shan
2016-03-03 23:53 ` [PATCH v15 03/12] powerpc/pci: Remove VFs prior to PF Gavin Shan
2016-03-03 23:53 ` [PATCH v15 04/12] powerpc/eeh: Cache normal BARs, not windows or IOV BARs Gavin Shan
2016-03-03 23:53 ` [PATCH v15 05/12] powerpc/eeh: EEH device for VF Gavin Shan
2016-03-03 23:53 ` [PATCH v15 06/12] powerpc/eeh: Create PE for VFs Gavin Shan
2016-03-03 23:53 ` [PATCH v15 07/12] powerpc/powernv: Support EEH reset for VF PE Gavin Shan
2016-03-03 23:53 ` [PATCH v15 08/12] powerpc/powernv: Support PCI config restore for VFs Gavin Shan
2016-03-03 23:53 ` [PATCH v15 09/12] powerpc/eeh: powerpc/eeh: Support error recovery for VF PE Gavin Shan
2016-03-03 23:53 ` [PATCH v15 10/12] powerpc/eeh: Don't propagate error to guest Gavin Shan
2016-03-03 23:53 ` Gavin Shan [this message]
2016-03-03 23:53 ` [PATCH v15 12/12] powerpc/eeh: Synchronize recovery in host/guest Gavin Shan
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