umcs (4-Port-USB-serial) triggering way too much ehci IRQs

[Lev Serebryakov]

Hello, Hans.
You wrote 17 сентября 2013 г., 9:14:17:

HPS> Check using usbdump -i usbusX -f Y -s 65536 -vvv
HPS> what is going on. Maybe some USB transfers are returning zero length data from the chip.
 Ok, I got 500 irq/s here from my device, so, I have same problem, as
 topicstarter. My usbdump (9-STABLE) doesn't understand '-f Y', without
 filter I get:

12:42:58.929604 usbus3.2 SUBM-INTR-EP=00000089,SPD=HIGH,NFR=1,SLEN=0,IVAL=2
 frame[0] READ 16 bytes
 flags 0xa <SHORT_XFER_OK|PIPE_BOF|0>
 status 0xeb023 <OPEN|TRANSFERRING|STARTED|SHORT_XFER_OK|BDMA_ENABLE|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:42:58.931601 usbus3.2 DONE-INTR-EP=00000089,SPD=HIGH,NFR=1,SLEN=8,IVAL=2,ERR=0
 frame[0] READ 5 bytes
 0000  C1 01 01 01 55 -- -- --  -- -- -- -- -- -- -- --  |....U           |
 flags 0xa <SHORT_XFER_OK|PIPE_BOF|0>
 status 0xcb021 <OPEN|STARTED|SHORT_XFER_OK|BDMA_ENABLE|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:42:58.931607 usbus3.2 SUBM-INTR-EP=00000089,SPD=HIGH,NFR=1,SLEN=0,IVAL=2
 frame[0] READ 16 bytes
 flags 0xa <SHORT_XFER_OK|PIPE_BOF|0>
 status 0xcb023 <OPEN|TRANSFERRING|STARTED|SHORT_XFER_OK|BDMA_ENABLE|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:42:58.933601 usbus3.2 DONE-INTR-EP=00000089,SPD=HIGH,NFR=1,SLEN=8,IVAL=2,ERR=0
 frame[0] READ 5 bytes
 0000  C1 01 01 01 55 -- -- --  -- -- -- -- -- -- -- --  |....U           |
 flags 0xa <SHORT_XFER_OK|PIPE_BOF|0>
 status 0xeb021 <OPEN|STARTED|SHORT_XFER_OK|BDMA_ENABLE|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:42:58.933610 usbus3.2 SUBM-INTR-EP=00000089,SPD=HIGH,NFR=1,SLEN=0,IVAL=2
 frame[0] READ 16 bytes
 flags 0xa <SHORT_XFER_OK|PIPE_BOF|0>
 status 0xeb023 <OPEN|TRANSFERRING|STARTED|SHORT_XFER_OK|BDMA_ENABLE|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>


-- 
// Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>