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From: Gavin Shan <gwshan@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: mpe@ellerman.id.au, Gavin Shan <gwshan@linux.vnet.ibm.com>
Subject: [PATCH 2/3] powerpc/eeh: Don't remove passed VFs
Date: Fri, 26 Feb 2016 11:04:51 +1100	[thread overview]
Message-ID: <1456445092-18337-3-git-send-email-gwshan@linux.vnet.ibm.com> (raw)
In-Reply-To: <1456445092-18337-1-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>
---
 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

  parent reply	other threads:[~2016-02-26  0:05 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-26  0:04 [PATCH 0/3] powerpc/eeh: Enhancement to EEH for VF Gavin Shan
2016-02-26  0:04 ` [PATCH 1/3] powerpc/eeh: Don't propagate error to guest Gavin Shan
2016-02-26  0:04 ` Gavin Shan [this message]
2016-02-26  0:04 ` [PATCH 3/3] powerpc/eeh: Synchronize recovery in host/guest Gavin Shan
2016-03-02  1:03   ` Russell Currey
2016-03-02  2:13     ` Gavin Shan
2016-03-02  1:04 ` [PATCH 0/3] powerpc/eeh: Enhancement to EEH for VF Russell Currey

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