communication method between two servers.
Best regards,
Lu Baolu
---
Change log:
v1->v2:
- Add a new patch to move u_serial.c from drivers/usb/gadget/function
to drivers/usb/common/ and move u_serial.h to include/linux/usb/.
Lu Baolu (4):
usb: xhci: Make some static functions global
.
Hence it can be remote accessed by a debug host. Another use case can
probably be found in servers. It provides a peer-to-peer USB link
between two host-only machines. This provides a reasonable out-of-band
communication method between two servers.
Signed-off-by: Lu Baolu
---
.../ABI/testing/sysfs
-off-by: Lu Baolu
---
drivers/usb/Kconfig|3 +
drivers/usb/Makefile |3 +-
drivers/usb/common/Makefile|1 +
drivers/usb/common/u_serial.c | 1604 +++
drivers/usb/gadget/Kconfig |3
communication method between two servers.
Best regards,
Lu Baolu
---
Change log:
v1->v2:
- Add a new patch to move u_serial.c from drivers/usb/gadget/function
to drivers/usb/common/ and move u_serial.h to include/linux/usb/.
Lu Baolu (4):
usb: xhci: Make some static functions global
___enqueue <[ring enqueue pointer]
|______trbs <---[ring trbs]
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
Change log:
v1->v2:
- No need to check return valuse of debugfs interfaces.
- Remove file entries when adding e
___enqueue <[ring enqueue pointer]
|______trbs <---[ring trbs]
Signed-off-by: Lu Baolu
---
Change log:
v1->v2:
- No need to check return valuse of debugfs interfaces.
- Remove file entries when adding endpoint fail
Hi Greg,
On 07/29/2017 09:34 PM, Greg KH wrote:
> On Sat, Jul 29, 2017 at 04:18:03PM +0800, Lu Baolu wrote:
>> +static void xhci_debugfs_create_files(struct xhci_hcd *xhci,
>> + struct xhci_file_map *files,
>> +
Hi Greg,
On 07/29/2017 09:34 PM, Greg KH wrote:
> On Sat, Jul 29, 2017 at 04:18:03PM +0800, Lu Baolu wrote:
>> +static void xhci_debugfs_create_files(struct xhci_hcd *xhci,
>> + struct xhci_file_map *files,
>> +
___enqueue <[ring enqueue pointer]
|______trbs <---[ring trbs]
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/Makefile | 4 +
drivers/usb/host/xhci-debugfs.c | 552
___enqueue <[ring enqueue pointer]
|______trbs <---[ring trbs]
Signed-off-by: Lu Baolu
---
drivers/usb/host/Makefile | 4 +
drivers/usb/host/xhci-debugfs.c | 552
drivers/usb/host/xhci-debug
Hi,
On 07/27/2017 03:55 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu <baolu...@linux.intel.com> writes:
>> Xhci driver handles USB transaction errors on transfer events,
>> but transaction errors are possible on address device command
>> completion events as w
Hi,
On 07/27/2017 03:55 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>> Xhci driver handles USB transaction errors on transfer events,
>> but transaction errors are possible on address device command
>> completion events as well.
>>
>> The xHCI sp
to a dead host.
Fixes: f9e609b82479 ("usb: xhci: Add helper function xhci_disable_slot().")
Cc: Guoqing Zhang <guoqing.zh...@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --
the responsibilities to
free the slot related data structure. Otherwise, memory leakage
happens.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 14 --
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/
m>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-hub.c | 2 +-
drivers/usb/host/xhci.c | 30 +-
drivers/usb/host/xhci.h | 3 +--
3 files changed, 11 insertions(+), 24 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b
to a dead host.
Fixes: f9e609b82479 ("usb: xhci: Add helper function xhci_disable_slot().")
Cc: Guoqing Zhang
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 2df601
the responsibilities to
free the slot related data structure. Otherwise, memory leakage
happens.
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 14 --
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index cb2461a..2df601e 100644
pointer, but xhci_disable_slot()
frees it when it detects a dead host.
This patch fixes these two problems by removing the command parameter
from xhci_disable_slot().
Fixes: f9e609b82479 ("usb: xhci: Add helper function xhci_disable_slot().")
Cc: Guoqing Zhang
Signed-off-by: Lu Baolu
--
/?l=linux-usb=149362010728921=2
http://marc.info/?l=linux-usb=149252752825755=2
Suggested-by: Mathias Nyman <mathias.ny...@linux.intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/driv
/?l=linux-usb=149362010728921=2
http://marc.info/?l=linux-usb=149252752825755=2
Suggested-by: Mathias Nyman
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index d6b728d..95780f8 100644
c: Guoqing Zhang <guoqing.zh...@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 4
1 file changed, 4 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index b2ff1ff..e69073f 100644
--- a/drivers/usb/host/xhci.c
c: Guoqing Zhang
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 4
1 file changed, 4 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index b2ff1ff..e69073f 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3567,11 +3567,7 @@ int xhci_di
This patch set includes some fixes in xhci_disable_slot() as well
which will be used to handle USB transaction error on address
command.
---
Change log:
v1->v2:
- include 4 fixes in xhci_disable_slot which will be used
to handle USB transaction error on address command.
Lu Baolu (5):
This patch set includes some fixes in xhci_disable_slot() as well
which will be used to handle USB transaction error on address
command.
---
Change log:
v1->v2:
- include 4 fixes in xhci_disable_slot which will be used
to handle USB transaction error on address command.
Lu Baolu (5):
Hi,
On 07/26/2017 01:11 PM, Xing, Zhengjun wrote:
>
>
> On 7/25/2017 1:09 PM, Lu Baolu wrote:
>> Xhci driver handles USB transaction errors on transfer events,
>> but transaction errors are possible on address device command
>> completion events as well.
>>
&
Hi,
On 07/26/2017 01:11 PM, Xing, Zhengjun wrote:
>
>
> On 7/25/2017 1:09 PM, Lu Baolu wrote:
>> Xhci driver handles USB transaction errors on transfer events,
>> but transaction errors are possible on address device command
>> completion events as well.
>>
&
/?l=linux-usb=149362010728921=2
http://marc.info/?l=linux-usb=149252752825755=2
Suggested-by: Mathias Nyman <mathias.ny...@linux.intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/driv
/?l=linux-usb=149362010728921=2
http://marc.info/?l=linux-usb=149252752825755=2
Suggested-by: Mathias Nyman
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index b2ff1ff..9cc56cd
Hi Felipe,
On 07/21/2017 06:31 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu <baolu...@linux.intel.com> writes:
>> +static void xhci_dbc_stop(struct xhci_hcd *xhci)
>> +{
>> +struct xhci_dbc *dbc = xhci->dbc;
>> +
>> +WARN_ON(!dbc);
&
Hi Felipe,
On 07/21/2017 06:31 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>> +static void xhci_dbc_stop(struct xhci_hcd *xhci)
>> +{
>> +struct xhci_dbc *dbc = xhci->dbc;
>> +
>> +WARN_ON(!dbc);
>> +
>> +cance
Update Documentation/driver-api/usb/usb3-debug-port.rst. This update
includes the guide for using xHCI debug capability based TTY serial
link.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
Documentation/driver-api/usb/usb3-debug-port.rst | 68
1 file chang
Update Documentation/driver-api/usb/usb3-debug-port.rst. This update
includes the guide for using xHCI debug capability based TTY serial
link.
Signed-off-by: Lu Baolu
---
Documentation/driver-api/usb/usb3-debug-port.rst | 68
1 file changed, 68 insertions(+)
diff --git
This patch makes some static functions global to avoid duplications
in different files. These functions can be used in the implementation
of xHCI debug capability. There is no functional change.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-mem.c
.
Hence it can be remote accessed by a debug host. Another use case can
probably be found in servers. It provides a peer-to-peer USB link
between two host-only machines. This provides a reasonable out-of-band
communication method between two servers.
Signed-off-by: Lu Baolu <baolu...@linux.intel.
This patch makes some static functions global to avoid duplications
in different files. These functions can be used in the implementation
of xHCI debug capability. There is no functional change.
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-mem.c | 94
.
Hence it can be remote accessed by a debug host. Another use case can
probably be found in servers. It provides a peer-to-peer USB link
between two host-only machines. This provides a reasonable out-of-band
communication method between two servers.
Signed-off-by: Lu Baolu
---
.../ABI/testing/sysfs
communication method between two servers.
Best regards,
Lu Baolu
Lu Baolu (3):
usb: xhci: Make some static functions global
usb: xhci: Add DbC support in xHCI driver
usb: doc: Update document for USB3 debug port usage
.../ABI/testing/sysfs-bus-pci-drivers-xhci_hcd | 25
communication method between two servers.
Best regards,
Lu Baolu
Lu Baolu (3):
usb: xhci: Make some static functions global
usb: xhci: Add DbC support in xHCI driver
usb: doc: Update document for USB3 debug port usage
.../ABI/testing/sysfs-bus-pci-drivers-xhci_hcd | 25
Hi,
On 07/13/2017 09:39 AM, Dou Liyang wrote:
> Hi, Lu
>
> At 07/13/2017 09:17 AM, Lu Baolu wrote:
>> Hi,
>>
>> On 07/12/2017 04:02 PM, Dou Liyang wrote:
>>> Hi, Lu
>>>
>>> At 05/05/2017 08:50 PM, Boris Ostrovsky wrote:
>>>> On 0
Hi,
On 07/13/2017 09:39 AM, Dou Liyang wrote:
> Hi, Lu
>
> At 07/13/2017 09:17 AM, Lu Baolu wrote:
>> Hi,
>>
>> On 07/12/2017 04:02 PM, Dou Liyang wrote:
>>> Hi, Lu
>>>
>>> At 05/05/2017 08:50 PM, Boris Ostrovsky wrote:
>>>> On 0
Hi,
On 07/12/2017 04:02 PM, Dou Liyang wrote:
> Hi, Lu
>
> At 05/05/2017 08:50 PM, Boris Ostrovsky wrote:
>> On 05/05/2017 01:41 AM, Lu Baolu wrote:
>>> Hi,
>>>
>>> On 05/03/2017 06:38 AM, Boris Ostrovsky wrote:
>>>> On 03/21/2017 04:01 AM,
Hi,
On 07/12/2017 04:02 PM, Dou Liyang wrote:
> Hi, Lu
>
> At 05/05/2017 08:50 PM, Boris Ostrovsky wrote:
>> On 05/05/2017 01:41 AM, Lu Baolu wrote:
>>> Hi,
>>>
>>> On 05/03/2017 06:38 AM, Boris Ostrovsky wrote:
>>>> On 03/21/2017 04:01 AM,
t;
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/early/xhci-dbc.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/
-by: Lu Baolu
---
drivers/usb/early/xhci-dbc.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index 1268818..12fe70b 100644
--- a/drivers/usb/early/xhci-dbc.c
+++ b/drivers/usb/early/xhci-dbc.c
@@ -32,7 +32,6 @@
static struct
Hi,
On 05/31/2017 05:38 PM, Vlastimil Babka wrote:
> On 05/31/2017 05:27 AM, Lu Baolu wrote:
>> Hi,
>>
>> On 05/30/2017 09:46 PM, Vlastimil Babka wrote:
>>> On 03/21/2017 09:01 AM, Lu Baolu wrote:
>>>> XHCI debug capability (DbC) is an optional
Hi,
On 05/31/2017 05:38 PM, Vlastimil Babka wrote:
> On 05/31/2017 05:27 AM, Lu Baolu wrote:
>> Hi,
>>
>> On 05/30/2017 09:46 PM, Vlastimil Babka wrote:
>>> On 03/21/2017 09:01 AM, Lu Baolu wrote:
>>>> XHCI debug capability (DbC) is an optional
Hi,
On 05/31/2017 02:24 PM, Steven Rostedt wrote:
> On Wed, 31 May 2017 11:27:19 +0800
> Lu Baolu <baolu...@linux.intel.com> wrote:
>
>
>>>> +
>>>> +#define XDBC_TRACE
>>>> +#ifdef XDBC_TRACE
>>>> +#define xdbc_trace
Hi,
On 05/31/2017 02:24 PM, Steven Rostedt wrote:
> On Wed, 31 May 2017 11:27:19 +0800
> Lu Baolu wrote:
>
>
>>>> +
>>>> +#define XDBC_TRACE
>>>> +#ifdef XDBC_TRACE
>>>> +#define xdbc_trace trace_printk
>>> Did you
Hi,
On 05/30/2017 09:46 PM, Vlastimil Babka wrote:
> On 03/21/2017 09:01 AM, Lu Baolu wrote:
>> XHCI debug capability (DbC) is an optional but standalone
>> functionality provided by an xHCI host controller. Software
>> learns this capability by walking through the extend
Hi,
On 05/30/2017 09:46 PM, Vlastimil Babka wrote:
> On 03/21/2017 09:01 AM, Lu Baolu wrote:
>> XHCI debug capability (DbC) is an optional but standalone
>> functionality provided by an xHCI host controller. Software
>> learns this capability by walking through the extend
via USB3 debug port"), comes much later
> into play.
Acked-by: Lu Baolu <baolu...@linux.intel.com>
>
> Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
> ---
> arch/x86/kernel/setup.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> d
via USB3 debug port"), comes much later
> into play.
Acked-by: Lu Baolu
>
> Signed-off-by: Jan Kiszka
> ---
> arch/x86/kernel/setup.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
>
Hi,
On 05/25/2017 12:56 AM, Jan Kiszka wrote:
> On 2017-03-21 13:19, tip-bot for Lu Baolu wrote:
>> Commit-ID: dd759d93f4dd4fd2f345a78ad1223bb3edf3ee7b
>> Gitweb:
>> http://git.kernel.org/tip/dd759d93f4dd4fd2f345a78ad1223bb3edf3ee7b
>> Author: Lu Baol
Hi,
On 05/25/2017 12:56 AM, Jan Kiszka wrote:
> On 2017-03-21 13:19, tip-bot for Lu Baolu wrote:
>> Commit-ID: dd759d93f4dd4fd2f345a78ad1223bb3edf3ee7b
>> Gitweb:
>> http://git.kernel.org/tip/dd759d93f4dd4fd2f345a78ad1223bb3edf3ee7b
>> Author: Lu Baolu
>
Hi,
On 05/03/2017 06:38 AM, Boris Ostrovsky wrote:
> On 03/21/2017 04:01 AM, Lu Baolu wrote:
>> Add a simple udelay calibration in x86 architecture-specific
>> boot-time initializations. This will get a workable estimate
>> for loops_per_jiffy. Hence, udelay(
Hi,
On 05/03/2017 06:38 AM, Boris Ostrovsky wrote:
> On 03/21/2017 04:01 AM, Lu Baolu wrote:
>> Add a simple udelay calibration in x86 architecture-specific
>> boot-time initializations. This will get a workable estimate
>> for loops_per_jiffy. Hence, udelay(
Hi,
On 03/24/2017 07:47 PM, Chanwoo Choi wrote:
> Hi Lu Baolu,
>
> On 2017년 03월 24일 20:24, Andy Shevchenko wrote:
>> On Fri, 2017-03-24 at 20:03 +0900, Chanwoo Choi wrote:
>>> On 2017년 03월 22일 22:09, Andy Shevchenko wrote:
>>>> On Wed, 2017-03-22 at 10:14 +0900
Hi,
On 03/24/2017 07:47 PM, Chanwoo Choi wrote:
> Hi Lu Baolu,
>
> On 2017년 03월 24일 20:24, Andy Shevchenko wrote:
>> On Fri, 2017-03-24 at 20:03 +0900, Chanwoo Choi wrote:
>>> On 2017년 03월 22일 22:09, Andy Shevchenko wrote:
>>>> On Wed, 2017-03-22 at 10:14 +0900
Hi,
On 03/21/2017 07:33 PM, Ingo Molnar wrote:
>> Lu Baolu (5):
>> > x86: add simple udelay calibration
>> > usb: early: add driver for xhci debug capability
>> > x86: add support for earlyprintk via USB3 debug port
>> > usb: serial: add dbc de
Hi,
On 03/21/2017 07:33 PM, Ingo Molnar wrote:
>> Lu Baolu (5):
>> > x86: add simple udelay calibration
>> > usb: early: add driver for xhci debug capability
>> > x86: add support for earlyprintk via USB3 debug port
>> > usb: serial: add dbc de
Commit-ID: 57fb47279a04cd53641dc5ae55a6d47e4f32a2fd
Gitweb: http://git.kernel.org/tip/57fb47279a04cd53641dc5ae55a6d47e4f32a2fd
Author: Lu Baolu <baolu...@linux.intel.com>
AuthorDate: Tue, 21 Mar 2017 16:01:32 +0800
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Tue, 21
Commit-ID: 57fb47279a04cd53641dc5ae55a6d47e4f32a2fd
Gitweb: http://git.kernel.org/tip/57fb47279a04cd53641dc5ae55a6d47e4f32a2fd
Author: Lu Baolu
AuthorDate: Tue, 21 Mar 2017 16:01:32 +0800
Committer: Ingo Molnar
CommitDate: Tue, 21 Mar 2017 12:30:17 +0100
usb/serial: Add DBC debug
Commit-ID: 1b326277798aa820c1043617786609b9bb4bee78
Gitweb: http://git.kernel.org/tip/1b326277798aa820c1043617786609b9bb4bee78
Author: Lu Baolu <baolu...@linux.intel.com>
AuthorDate: Tue, 21 Mar 2017 16:01:33 +0800
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Tue, 21
Commit-ID: 1b326277798aa820c1043617786609b9bb4bee78
Gitweb: http://git.kernel.org/tip/1b326277798aa820c1043617786609b9bb4bee78
Author: Lu Baolu
AuthorDate: Tue, 21 Mar 2017 16:01:33 +0800
Committer: Ingo Molnar
CommitDate: Tue, 21 Mar 2017 12:30:17 +0100
usb/doc: Add document for USB3
Commit-ID: 1b5aeebf3a92273b4d85aeff37a16037bc3c3abf
Gitweb: http://git.kernel.org/tip/1b5aeebf3a92273b4d85aeff37a16037bc3c3abf
Author: Lu Baolu <baolu...@linux.intel.com>
AuthorDate: Tue, 21 Mar 2017 16:01:31 +0800
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Tue, 21
Commit-ID: 1b5aeebf3a92273b4d85aeff37a16037bc3c3abf
Gitweb: http://git.kernel.org/tip/1b5aeebf3a92273b4d85aeff37a16037bc3c3abf
Author: Lu Baolu
AuthorDate: Tue, 21 Mar 2017 16:01:31 +0800
Committer: Ingo Molnar
CommitDate: Tue, 21 Mar 2017 12:30:16 +0100
x86/earlyprintk: Add support
Commit-ID: aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0
Gitweb: http://git.kernel.org/tip/aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0
Author: Lu Baolu <baolu...@linux.intel.com>
AuthorDate: Tue, 21 Mar 2017 16:01:30 +0800
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Tue, 21
Commit-ID: aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0
Gitweb: http://git.kernel.org/tip/aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0
Author: Lu Baolu
AuthorDate: Tue, 21 Mar 2017 16:01:30 +0800
Committer: Ingo Molnar
CommitDate: Tue, 21 Mar 2017 12:30:05 +0100
usb/early: Add driver for xhci
Commit-ID: dd759d93f4dd4fd2f345a78ad1223bb3edf3ee7b
Gitweb: http://git.kernel.org/tip/dd759d93f4dd4fd2f345a78ad1223bb3edf3ee7b
Author: Lu Baolu <baolu...@linux.intel.com>
AuthorDate: Tue, 21 Mar 2017 16:01:29 +0800
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Tue, 21
Commit-ID: dd759d93f4dd4fd2f345a78ad1223bb3edf3ee7b
Gitweb: http://git.kernel.org/tip/dd759d93f4dd4fd2f345a78ad1223bb3edf3ee7b
Author: Lu Baolu
AuthorDate: Tue, 21 Mar 2017 16:01:29 +0800
Committer: Ingo Molnar
CommitDate: Tue, 21 Mar 2017 12:28:45 +0100
x86/timers: Add simple udelay
ory blocks.
This requires to delay setting up debugging hardware and
registering boot console until the memblocks are filled.
Cc: Ingo Molnar <mi...@redhat.com>
Cc: x...@kernel.org
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
Documentation/admin-guide/kernel-parameters.txt
ory blocks.
This requires to delay setting up debugging hardware and
registering boot console until the memblocks are filled.
Cc: Ingo Molnar
Cc: x...@kernel.org
Signed-off-by: Lu Baolu
---
Documentation/admin-guide/kernel-parameters.txt | 1 +
arch/x86/kernel/early_printk.c | 5 +
Add Documentation/usb/usb3-debug-port.rst. This document includes
the guide for using USB3 debug port.
Cc: linux-...@vger.kernel.org
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
Documentation/usb/usb3-debug-port.rst | 100 ++
1 file change
Add Documentation/usb/usb3-debug-port.rst. This document includes
the guide for using USB3 debug port.
Cc: linux-...@vger.kernel.org
Signed-off-by: Lu Baolu
---
Documentation/usb/usb3-debug-port.rst | 100 ++
1 file changed, 100 insertions(+)
create mode 100644
your machine crashes very early before the regular
console code is initialized. Other uses include simpler,
lockless logging instead of a full-blown printk console
driver and klogd.
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Mathias Nyman <mathias.ny...@linux.intel.com>
Signed-off-by: Lu
your machine crashes very early before the regular
console code is initialized. Other uses include simpler,
lockless logging instead of a full-blown printk console
driver and klogd.
Cc: Ingo Molnar
Cc: Mathias Nyman
Signed-off-by: Lu Baolu
---
arch/x86/Kconfig.debug| 23 +
drivers
This patch adds dbc debug device support to the usb_debug driver.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
Acked-by: Johan Hovold <jo...@kernel.org>
---
drivers/usb/serial/usb_debug.c | 28 +---
1 file changed, 25 insertions(+), 3 deletions(-)
This patch adds dbc debug device support to the usb_debug driver.
Signed-off-by: Lu Baolu
Acked-by: Johan Hovold
---
drivers/usb/serial/usb_debug.c | 28 +---
1 file changed, 25 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb
1->v2:
- Refactor the duplicate code in xdbc_early_start() and
xdbc_handle_external_reset().
- Free resources when hardware not used any more.
- Refine the user guide document.
Lu Baolu (5):
x86: add simple udelay calibration
usb: early: add driver for xhci debug capability
x86: add support
Add a simple udelay calibration in x86 architecture-specific
boot-time initializations. This will get a workable estimate
for loops_per_jiffy. Hence, udelay() could be used after this
initialization.
Cc: Ingo Molnar <mi...@redhat.com>
Cc: x...@kernel.org
Signed-off-by: Lu Baolu
1->v2:
- Refactor the duplicate code in xdbc_early_start() and
xdbc_handle_external_reset().
- Free resources when hardware not used any more.
- Refine the user guide document.
Lu Baolu (5):
x86: add simple udelay calibration
usb: early: add driver for xhci debug capability
x86: add support
Add a simple udelay calibration in x86 architecture-specific
boot-time initializations. This will get a workable estimate
for loops_per_jiffy. Hence, udelay() could be used after this
initialization.
Cc: Ingo Molnar
Cc: x...@kernel.org
Signed-off-by: Lu Baolu
---
arch/x86/kernel/setup.c | 22
Hi Ingo,
On 03/16/2017 03:17 PM, Ingo Molnar wrote:
> * Lu Baolu <baolu...@linux.intel.com> wrote:
>
>> Hi Ingo,
>>
>> On 03/02/2017 02:40 PM, Ingo Molnar wrote:
>>> * Lu Baolu <baolu...@linux.intel.com> wrote:
>>>
>>>> Hi Ingo
Hi Ingo,
On 03/16/2017 03:17 PM, Ingo Molnar wrote:
> * Lu Baolu wrote:
>
>> Hi Ingo,
>>
>> On 03/02/2017 02:40 PM, Ingo Molnar wrote:
>>> * Lu Baolu wrote:
>>>
>>>> Hi Ingo,
>>>>
>>>> How about this version? An
Hi Ingo,
On 03/02/2017 02:40 PM, Ingo Molnar wrote:
> * Lu Baolu <baolu...@linux.intel.com> wrote:
>
>> Hi Ingo,
>>
>> How about this version? Any further comments?
> So I have re-read the review feedback I gave on Jan 19 and found at least one
> thing I
Hi Ingo,
On 03/02/2017 02:40 PM, Ingo Molnar wrote:
> * Lu Baolu wrote:
>
>> Hi Ingo,
>>
>> How about this version? Any further comments?
> So I have re-read the review feedback I gave on Jan 19 and found at least one
> thing I pointed out that you didn't address
Hi Ingo,
How about this version? Any further comments?
Best regards,
Lu Baolu
On 02/14/2017 10:27 AM, Lu Baolu wrote:
> xHCI debug capability (DbC) is an optional but standalone
> functionality provided by an xHCI host controller. With DbC
> hardware initialized, the system wil
Hi Ingo,
How about this version? Any further comments?
Best regards,
Lu Baolu
On 02/14/2017 10:27 AM, Lu Baolu wrote:
> xHCI debug capability (DbC) is an optional but standalone
> functionality provided by an xHCI host controller. With DbC
> hardware initialized, the system wil
Hi,
On 02/15/2017 04:56 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu <baolu...@linux.intel.com> writes:
>>> Lu Baolu <baolu...@linux.intel.com> writes:
>>>> diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
>>>> index 1a
Hi,
On 02/15/2017 04:56 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>>> Lu Baolu writes:
>>>> diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
>>>> index 1ac2cdf..c31eeaf 100644
>>>> --- a/drivers/usb/host
Hi,
On 02/15/2017 04:00 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu <baolu...@linux.intel.com> writes:
>> XHCI driver has defined xhci_log_ctx trace events to trace
>> the change of an xhci input or output context. This patch
>> extends the trace class of xhci_log
Hi,
On 02/15/2017 04:00 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>> XHCI driver has defined xhci_log_ctx trace events to trace
>> the change of an xhci input or output context. This patch
>> extends the trace class of xhci_log_ctx to print out the
>
Hi,
On 02/15/2017 03:58 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu <baolu...@linux.intel.com> writes:
>> diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
>> index 1ac2cdf..c31eeaf 100644
>> --- a/drivers/usb/host/xhci-trace.h
>&
Hi,
On 02/15/2017 03:58 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>> diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
>> index 1ac2cdf..c31eeaf 100644
>> --- a/drivers/usb/host/xhci-trace.h
>> +++ b/drivers/usb/host/
xhci_decode_trb() treats a link trb in the same way as that for
an event trb. This patch fixes this by decoding the link trb
according to the spec.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.h | 12 +---
1 file changed, 5 insertions(+), 7 del
plugin.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-hub.c | 2 +
drivers/usb/host/xhci-ring.c | 13 +--
drivers/usb/host/xhci-trace.h | 90 +++
drivers/usb/host/xhci.c | 7
4 files changed, 108 inse
xhci_decode_trb() treats a link trb in the same way as that for
an event trb. This patch fixes this by decoding the link trb
according to the spec.
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.h | 12 +---
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/drivers/usb
plugin.
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-hub.c | 2 +
drivers/usb/host/xhci-ring.c | 13 +--
drivers/usb/host/xhci-trace.h | 90 +++
drivers/usb/host/xhci.c | 7
4 files changed, 108 insertions(+), 4 deletions(-)
diff
Every XHCI TRB has already been traced by the trb trace events.
It is unnecessary to put the same message in kernel log. This
patch removes xhci_debug_trb().
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-dbg.c
Every XHCI TRB has already been traced by the trb trace events.
It is unnecessary to put the same message in kernel log. This
patch removes xhci_debug_trb().
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-dbg.c | 57
drivers/usb/host/xhci-ring.c
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