Date: Tue, 17 Sep 2013 10:43:25 +0200 From: Harald Schmalzbauer <h.schmalzbauer@omnilan.de> To: Hans Petter Selasky <hans.petter.selasky@bitfrost.no> Cc: "lev@FreeBSD.org" <lev@freebsd.org>, FreeBSD Stable <freebsd-stable@freebsd.org>, "freebsd-usb@freebsd.org" <freebsd-usb@freebsd.org> Subject: Re: umcs (4-Port-USB-serial) triggering way too much ehci IRQs Message-ID: <5238162D.1090901@omnilan.de> In-Reply-To: <zarafa.5237e529.2bc6.08fde6eb34c27a87@mail.lockless.no> References: <52372DBA.6020703@omnilan.de> <zarafa.5237e529.2bc6.08fde6eb34c27a87@mail.lockless.no>
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[-- Attachment #1 --] Bezüglich Hans Petter Selasky's Nachricht vom 17.09.2013 07:14 (localtime): > Hi, > > Check using usbdump -i usbusX -f Y -s 65536 -vvv > > what is going on. Maybe some USB transfers are returning zero length data from the chip. Thanks for your help! I can't really read the numbers, but these 4 actions look all the time, whe no connection is open: 08:39:19.889658 usbus1.4 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> 08:39:19.891655 usbus1.4 DONE-INTR-EP=00000089,SPD=HIGH,NFR=1,SLEN=8,IVAL=2,ERR=0 frame[0] READ 5 bytes 0000 C1 C1 C1 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> 08:39:19.891658 usbus1.4 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> 08:39:19.893656 usbus1.4 DONE-INTR-EP=00000089,SPD=HIGH,NFR=1,SLEN=8,IVAL=2,ERR=0 frame[0] READ 5 bytes 0000 C1 C1 C1 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> Thanks, -Harry [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAlI4Fi0ACgkQLDqVQ9VXb8gbQwCdH8yS3AbxHEUuxMfNF6m/C0+Q +7MAnA6SLl1wiJf7aokpGLdTXAhpgJle =DR7P -----END PGP SIGNATURE-----
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