Re: [PATCH V3 6/9] powerpc/powernv: create/release eeh_dev for VF

[Wei Yang <weiyang@linux.vnet.ibm.com>]

On Mon, May 11, 2015 at 12:48:56PM +1000, Gavin Shan wrote:
>On Mon, May 04, 2015 at 03:07:35PM +0800, Wei Yang wrote:
>
>Please order this patch and PATCH[5] because EEH device is expected to
>be created before EEH PE.
>
>>EEH on powerpc platform needs eeh_dev structure to track the pci device
>                                                              ^^^
>							      PCI
>
>>status. Since VFs are created/released dynamically, VF's eeh_dev is also
>>dynamically created/released in system.
>>
>>This patch creates/removes eeh_dev when pci_dn is created/removed for VFs,
>>and marks it with EEH_DEV_VF type.
>>
>>Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
>>---
>> arch/powerpc/include/asm/eeh.h |    7 +++++++
>> arch/powerpc/kernel/eeh.c      |    4 ++++
>> arch/powerpc/kernel/eeh_dev.c  |   20 ++++++++++++++++++++
>> arch/powerpc/kernel/pci_dn.c   |    7 +++++++
>> 4 files changed, 38 insertions(+)
>>
>>diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
>>index 56e8cd9..2067de4 100644
>>--- a/arch/powerpc/include/asm/eeh.h
>>+++ b/arch/powerpc/include/asm/eeh.h
>>@@ -124,6 +124,7 @@ static inline bool eeh_pe_passed(struct eeh_pe *pe)
>> #define EEH_DEV_NO_HANDLER	(1 << 8)	/* No error handler	*/
>> #define EEH_DEV_SYSFS		(1 << 9)	/* Sysfs created	*/
>> #define EEH_DEV_REMOVED		(1 << 10)	/* Removed permanently	*/
>>+#define EEH_DEV_VF		(1 << 11)	/* VF port		*/
>>
>
>Why you need this flag? I guess "edev->physfn" can be used to distinguish
>it's a normal or VF eeh_dev.
>

Just like we have EEH_DEV_BRIDGE and EEH_DEV_DS_PORT, I use the flag
EEH_DEV_VF to mark it a VF eeh_dev.


-- 
Richard Yang
Help you, Help me