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
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
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
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);
>> +
>> +cancel_del
/?l=linux-usb&m=149362010728921&w=2
http://marc.info/?l=linux-usb&m=149252752825755&w=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
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.
>>
&
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
--
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
t;)
Cc: 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 xh
/?l=linux-usb&m=149362010728921&w=2
http://marc.info/?l=linux-usb&m=149252752825755&w=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
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
ux-usb&m=149252752825755&w=2
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 co
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
]
|__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/
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,
>> +
In the xhci_add_endpoint(), a new ring was allocated and saved at
xhci_virt_ep->new_ring. Hence, when error happens, we need to free
the allocated ring before returning error.
Current code frees xhci_virt_ep->ring instead of the new_ring. This
patch fixes this.
Signed-off-by: Lu
]
|__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 end
-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
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
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
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
Hi,
On 08/07/2017 04:13 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>> The component u_serial provides a glue layer between TTY layer
>> and a USB gadget device needed to provide a basic serial port
>> functionality. Currently, u_serial sits under gadget
Hi,
On 08/08/2017 02:14 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>>> Lu Baolu writes:
>>>> The component u_serial provides a glue layer between TTY layer
>>>> and a USB gadget device needed to provide a basic serial port
>>>>
Hi,
On 08/09/2017 03:58 PM, Mathias Nyman wrote:
> On 27.07.2017 05:21, Lu Baolu wrote:
>> xhci_disable_slot() is a helper for disabling a slot when a device
>> goes away or recovers from error situations. Currently, it checks
>> the corespoding virt-dev pointer and returns
Hi,
On 08/10/2017 06:00 PM, Mathias Nyman wrote:
> On 10.08.2017 03:35, Lu Baolu wrote:
>> Hi,
>>
>> On 08/09/2017 03:58 PM, Mathias Nyman wrote:
>>> On 27.07.2017 05:21, Lu Baolu wrote:
>>>> xhci_disable_slot() is a helper for disabling a slot when a de
t;)
Cc: Guoqing Zhang
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-hub.c | 3 +++
drivers/usb/host/xhci.c | 4
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 00721e8..6fcb98d 100644
--- a/drivers/usb/host/x
/?l=linux-usb&m=149362010728921&w=2
http://marc.info/?l=linux-usb&m=149252752825755&w=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
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
nd.
v2->v3:
- Add checking virt dev for test mode in PATCH 1/5.
Lu Baolu (5):
usb: xhci: Disable slot even virt-dev is null
usb: xhci: Fix potential memory leak in xhci_disable_slot()
usb: xhci: Fix memory leak when xhci_disable_slot() returns error
usb: xhci: Return erro
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
--
Hi,
On 08/15/2017 07:30 PM, Mathias Nyman wrote:
> On 11.08.2017 05:41, 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.
>>
>> The
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
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
/?l=linux-usb&m=149362010728921&w=2
http://marc.info/?l=linux-usb&m=149252752825755&w=2
Suggested-by: Mathias Nyman
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci
t;)
Cc: Guoqing Zhang
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-hub.c | 3 +++
drivers/usb/host/xhci.c | 4
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 00721e8..6fcb98d 100644
--- a/drivers/usb/host/x
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
--
nd.
v2->v3:
- Add checking virt dev for test mode in PATCH 1/5.
v3->v4:
- Resolve xhci->mutex locking issue in 5/5.
Lu Baolu (5):
usb: xhci: Disable slot even virt-dev is null
usb: xhci: Fix potential memory leak in xhci_disable_slot()
usb: xhci: Fix memory leak when xhci_disabl
Hi,
On 08/18/2017 09:31 PM, Mathias Nyman wrote:
> On 16.08.2017 05:15, Lu Baolu wrote:
>> Hi,
>>
>> On 08/15/2017 07:30 PM, Mathias Nyman wrote:
>>> On 11.08.2017 05:41, Lu Baolu wrote:
>>>> Xhci driver handles USB transaction errors on transfer events
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 502842b..1290674 100644
ux-usb&m=149252752825755&w=2
This patch set includes some fixes in xhci_disable_slot() as well
which will be used to handle USB transaction error on address
command.
This patch set is based on the top of for-usb-next branch in your
xhci tree.
Best regards,
Lu Baolu
---
Change log:
t;)
Cc: Guoqing Zhang
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-hub.c | 3 +++
drivers/usb/host/xhci.c | 4
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index ad89a6d..f0ae9df 100644
--- a/drivers/usb/host/x
/?l=linux-usb&m=149362010728921&w=2
http://marc.info/?l=linux-usb&m=149252752825755&w=2
Suggested-by: Mathias Nyman
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 10 --
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers
306294725821&w=2
Suggested-by: Mathias Nyman
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 3bb3075..311cded 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.
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 129067
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
--
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
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
.
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
---
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/.
v2->v3:
- Remove the use of u_serial and add a new tty gl
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-ring.c | 19 ---
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index c75cfe7..b1de9f2 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/hos
Function argument ep_trb for xhci_cleanup_halted_endpoint() isn't
needed anymore. Cleanup it.
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-ring.c | 8 +++-
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
601 - 653 of 653 matches
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