Since the initial version of the testing instructions a few
things has changed. So consider the latest arm64/defconfig changes
and the new debugfs entry.
Signed-off-by: Stefan Wahren <wahrenst@xxxxxxx>
---
.../staging/vc04_services/interface/TESTING | 45 ++++++++++++++++++-
1 file changed, 44 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/vc04_services/interface/TESTING b/drivers/staging/vc04_services/interface/TESTING
index a6d63efcbcb9..273952dc9d85 100644
--- a/drivers/staging/vc04_services/interface/TESTING
+++ b/drivers/staging/vc04_services/interface/TESTING
@@ -31,7 +31,7 @@ Here are the most common kernel configurations:
3. BCM2837 target SoC (ARM 64 bit)
- Use the defconfig as a base and then enable all VCHIQ options.
+ Use the defconfig which has most of the VCHIQ options enabled.
* Scenarios
@@ -80,3 +80,46 @@ Here are the most common kernel configurations:
vchi ping (size 0, 100 async, 100 oneway) -> infus
vchi ping (size 0, 200 async, 0 oneway) -> infus
...
+
+ * Debugfs test
+
+ Command: cat /sys/kernel/debug/vchiq/state
+
+ Example output:
+ State 0: CONNECTED
+ tx_pos=0x1e8(@43b0acda), rx_pos=0x170(@05493af8)
+ Version: 8 (min 3)
+ Stats: ctrl_tx_count=7, ctrl_rx_count=7, error_count=0
+ Slots: 30 available (29 data), 0 recyclable, 0 stalls (0 data)
+ Platform: 2835 (VC master)
+ Local: slots 34-64 tx_pos=0x1e8 recycle=0x1f
+ Slots claimed:
+ DEBUG: SLOT_HANDLER_COUNT = 20(0x14)
+ DEBUG: SLOT_HANDLER_LINE = 1937(0x791)
+ DEBUG: PARSE_LINE = 1864(0x748)
+ DEBUG: PARSE_HEADER = -249155224(0xf1263168)
+ DEBUG: PARSE_MSGID = 67362817(0x403e001)
+ DEBUG: AWAIT_COMPLETION_LINE = 0(0x0)
+ DEBUG: DEQUEUE_MESSAGE_LINE = 0(0x0)
+ DEBUG: SERVICE_CALLBACK_LINE = 0(0x0)
+ DEBUG: MSG_QUEUE_FULL_COUNT = 0(0x0)
+ DEBUG: COMPLETION_QUEUE_FULL_COUNT = 0(0x0)
+ Remote: slots 2-32 tx_pos=0x170 recycle=0x1f
+ Slots claimed:
+ 2: 10/9
+ DEBUG: SLOT_HANDLER_COUNT = 20(0x14)
+ DEBUG: SLOT_HANDLER_LINE = 1851(0x73b)
+ DEBUG: PARSE_LINE = 1827(0x723)
+ DEBUG: PARSE_HEADER = -150330912(0xf70a21e0)
+ DEBUG: PARSE_MSGID = 67113022(0x400103e)
+ DEBUG: AWAIT_COMPLETION_LINE = 0(0x0)
+ DEBUG: DEQUEUE_MESSAGE_LINE = 0(0x0)
+ DEBUG: SERVICE_CALLBACK_LINE = 0(0x0)
+ DEBUG: MSG_QUEUE_FULL_COUNT = 0(0x0)
+ DEBUG: COMPLETION_QUEUE_FULL_COUNT = 0(0x0)
+ Service 0: LISTENING (ref 1) 'PEEK little-endian (0x4b454550)' remote n/a (msg use 0/3840, slot use 0/15)
+ Bulk: tx_pending=0 (size 0), rx_pending=0 (size 0)
+ Ctrl: tx_count=0, tx_bytes=0, rx_count=0, rx_bytes=0
+ Bulk: tx_count=0, tx_bytes=0, rx_count=0, rx_bytes=0
+ 0 quota stalls, 0 slot stalls, 0 bulk stalls, 0 aborted, 0 errors
+ instance b511f60b
--
2.34.1
