Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-28 Thread ethan zhao
Alex, On 2015/10/27 23:15, Alexander Duyck wrote: On 10/27/2015 02:28 AM, ethan zhao wrote: Alexander, On 2015/10/27 13:48, Alexander Duyck wrote: On 10/15/2015 10:16 AM, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-28 Thread ethan zhao
Alex, On 2015/10/27 23:15, Alexander Duyck wrote: On 10/27/2015 02:28 AM, ethan zhao wrote: Alexander, On 2015/10/27 13:48, Alexander Duyck wrote: On 10/15/2015 10:16 AM, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-27 Thread Alexander Duyck
On 10/27/2015 02:28 AM, ethan zhao wrote: Alexander, On 2015/10/27 13:48, Alexander Duyck wrote: On 10/15/2015 10:16 AM, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c ("PCI: Calculate maximum number of buses required for

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-27 Thread ethan zhao
Alexander, On 2015/10/27 13:48, Alexander Duyck wrote: On 10/15/2015 10:16 AM, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c ("PCI: Calculate maximum number of buses required for VFs"),the initial value of NumVFs register

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-27 Thread ethan zhao
Alexander, On 2015/10/27 13:48, Alexander Duyck wrote: On 10/15/2015 10:16 AM, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c ("PCI: Calculate maximum number of buses required for VFs"),the initial value of NumVFs register

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-27 Thread Alexander Duyck
On 10/27/2015 02:28 AM, ethan zhao wrote: Alexander, On 2015/10/27 13:48, Alexander Duyck wrote: On 10/15/2015 10:16 AM, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c ("PCI: Calculate maximum number of buses required for

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-26 Thread Alexander Duyck
On 10/15/2015 10:16 AM, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c ("PCI: Calculate maximum number of buses required for VFs"),the initial value of NumVFs register was left to non-zero after sriov_init() and no VFs was

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-26 Thread ethan zhao
On 2015/10/22 4:54, Bjorn Helgaas wrote: On Thu, Oct 15, 2015 at 12:16:00PM -0500, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c ("PCI: Calculate maximum number of buses required for VFs"),the initial value of NumVFs

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-26 Thread ethan zhao
On 2015/10/22 4:54, Bjorn Helgaas wrote: On Thu, Oct 15, 2015 at 12:16:00PM -0500, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c ("PCI: Calculate maximum number of buses required for VFs"),the initial value of NumVFs

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-26 Thread Alexander Duyck
On 10/15/2015 10:16 AM, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c ("PCI: Calculate maximum number of buses required for VFs"),the initial value of NumVFs register was left to non-zero after sriov_init() and no VFs was

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-21 Thread ethan zhao
Bjorn, On 2015/10/22 4:54, Bjorn Helgaas wrote: On Thu, Oct 15, 2015 at 12:16:00PM -0500, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c ("PCI: Calculate maximum number of buses required for VFs"),the initial value of

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-21 Thread Bjorn Helgaas
On Thu, Oct 15, 2015 at 12:16:00PM -0500, Bjorn Helgaas wrote: > Hi Ethan, > > On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: > > After commit 4449f079722c ("PCI: Calculate maximum number of buses > > required for VFs"),the initial value of NumVFs register was left to > > non-zero

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-21 Thread Bjorn Helgaas
On Thu, Oct 15, 2015 at 12:16:00PM -0500, Bjorn Helgaas wrote: > Hi Ethan, > > On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: > > After commit 4449f079722c ("PCI: Calculate maximum number of buses > > required for VFs"),the initial value of NumVFs register was left to > > non-zero

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-21 Thread ethan zhao
Bjorn, On 2015/10/22 4:54, Bjorn Helgaas wrote: On Thu, Oct 15, 2015 at 12:16:00PM -0500, Bjorn Helgaas wrote: Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: After commit 4449f079722c ("PCI: Calculate maximum number of buses required for VFs"),the initial value of

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-15 Thread Bjorn Helgaas
Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: > After commit 4449f079722c ("PCI: Calculate maximum number of buses > required for VFs"),the initial value of NumVFs register was left to > non-zero after sriov_init() and no VFs was enabled in device driver. > this changed

Re: [PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-10-15 Thread Bjorn Helgaas
Hi Ethan, On Wed, Sep 16, 2015 at 12:19:53PM +0900, Ethan Zhao wrote: > After commit 4449f079722c ("PCI: Calculate maximum number of buses > required for VFs"),the initial value of NumVFs register was left to > non-zero after sriov_init() and no VFs was enabled in device driver. > this changed

[PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-09-15 Thread Ethan Zhao
After commit 4449f079722c ("PCI: Calculate maximum number of buses required for VFs"),the initial value of NumVFs register was left to non-zero after sriov_init() and no VFs was enabled in device driver. this changed the behaviour of kernel exported by lspci and sysfs etc. so this patch restore

[PATCH v2] iov: restore NumVFs register to 0 before return from virtfn_max_buses()

2015-09-15 Thread Ethan Zhao
After commit 4449f079722c ("PCI: Calculate maximum number of buses required for VFs"),the initial value of NumVFs register was left to non-zero after sriov_init() and no VFs was enabled in device driver. this changed the behaviour of kernel exported by lspci and sysfs etc. so this patch restore