Hi, I am working with the PLX/Avago net3382 connected via PCIe to an ARM controller. I have the kernel configured to use the net338x as an RNDIS gadget and when a USB2 cable is plugged into the board the windows test host correctly enumerates the gadget and I am able to setup and ethernet across the connection.
However, if I use a super speed cable there appears to be a problem after the initial transfer of the descriptors that I don¹t understand. The windows host shows the gadget as working initially, but after a short delay of a few seconds marks it as code 10 (This device cannot start). Am I right in thinking the problems start after the first non-core control request? Any help with debugging this problem or at least pointing me in the right direction would be most appreciated. Best Regards Simon Appleby uname -a Linux usb_test 3.19.8 #6 Fri Jan 22 09:47:38 GMT 2016 armv5tel GNU/Linux Log output with USB3 cable Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: super-speed Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 80.06 v0100 i0000 l0040 ep_cfg 00000000 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: write ep0 fifo (IN) 18 bytes (short) req cf98ba80 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: setup complete --> 0, 0/18 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 80.06 v0100 i0000 l0012 ep_cfg 00000000 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: write ep0 fifo (IN) 18 bytes (short) req cf98ba80 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: setup complete --> 0, 0/18 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 80.06 v0200 i0000 l00ff ep_cfg 00000000 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: write ep0 fifo (IN) 93 bytes (short) req cf98ba80 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: setup complete --> 0, 0/93 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 80.06 v0f00 i0000 l0005 ep_cfg 00000000 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: write ep0 fifo (IN) 5 bytes (short) req cf98ba80 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: setup complete --> 0, 0/5 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 80.06 v0f00 i0000 l0016 ep_cfg 00000000 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: write ep0 fifo (IN) 22 bytes (short) req cf98ba80 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: setup complete --> 0, 0/22 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 80.06 v0300 i0000 l00ff ep_cfg 00000000 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: write ep0 fifo (IN) 4 bytes (short) req cf98ba80 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: setup complete --> 0, 0/4 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 80.06 v0302 i0409 l00ff ep_cfg 00000000 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: write ep0 fifo (IN) 44 bytes (short) req cf98ba80 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: setup complete --> 0, 0/44 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 80.06 v0100 i0000 l0012 ep_cfg 00000000 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: write ep0 fifo (IN) 18 bytes (short) req cf98ba80 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: setup complete --> 0, 0/18 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 00.09 v0002 i0000 l0000 ep_cfg 00040400 Jan 10 21:30:54 (none) user.info kernel: g_ether gadget: super-speed config #2: RNDIS Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: init rndis Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: RNDIS RX/TX early activation ... Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: enabled ep-a (ep1in-bulk) dma max 0400 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: enabled ep-b (ep1out-bulk) dma max 0400 Jan 10 21:30:54 (none) user.debug kernel: usb0: qlen 10 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: rndis_open Jan 10 21:30:54 (none) user.debug kernel: rndis_set_param_medium: 0 8519680 Jan 10 21:30:54 (none) user.debug kernel: usb0: eth_start Jan 10 21:30:54 (none) user.debug kernel: rndis_set_param_dev: Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: ep0 status ack Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 21.00 v0000 i0000 l0018 ep_cfg 00040400 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: non-core control req21.00 v0000 i0000 l24 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: rndis req21.00 v0000 i0000 l24 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: read ep0 fifo (OUT) 24 bytes (short) req cf98ba80 24/24 Jan 10 21:30:54 (none) user.debug kernel: rndis_msg_parser: RNDIS_MSG_INIT Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: notify/0 --> -22 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: ep-a clear halt Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: ep-b clear halt Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: setup 21.00 v0000 i0000 l0018 ep_cfg 00040400 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: non-core control req21.00 v0000 i0000 l24 Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: rndis req21.00 v0000 i0000 l24 Jan 10 21:30:54 (none) user.debug kernel: net2280 0000:05:00.0: read ep0 fifo (OUT) 24 bytes (short) req cf98ba80 24/24 Jan 10 21:30:54 (none) user.debug kernel: rndis_msg_parser: RNDIS_MSG_INIT Jan 10 21:30:54 (none) user.debug kernel: g_ether gadget: notify/0 --> -22 Jan 10 21:30:59 (none) user.debug kernel: net2280 0000:05:00.0: setup 00.09 v0000 i0000 l0000 ep_cfg 00040400 Jan 10 21:30:59 (none) user.debug kernel: g_ether gadget: reset config Jan 10 21:30:59 (none) user.debug kernel: g_ether gadget: rndis deactivated Jan 10 21:30:59 (none) user.debug kernel: usb0: gether_disconnect Jan 10 21:30:59 (none) user.debug kernel: net2280 0000:05:00.0: disabled dma ep-a Jan 10 21:30:59 (none) user.debug kernel: usb0: rx shutdown, code -108 Jan 10 21:30:59 (none) user.debug kernel: usb0: rx shutdown, code -108 Jan 10 21:30:59 (none) user.debug kernel: usb0: rx shutdown, code -108 Jan 10 21:30:59 (none) user.debug kernel: usb0: rx shutdown, code -108 Jan 10 21:30:59 (none) user.debug kernel: usb0: rx shutdown, code -108 Jan 10 21:30:59 (none) user.debug kernel: usb0: rx shutdown, code -108 Jan 10 21:30:59 (none) user.debug kernel: usb0: rx shutdown, code -108 Jan 10 21:30:59 (none) user.debug kernel: usb0: rx shutdown, code -108 Jan 10 21:30:59 (none) user.debug kernel: usb0: rx shutdown, code -108 Jan 10 21:30:59 (none) user.debug kernel: usb0: rx shutdown, code -108 Jan 10 21:30:59 (none) user.debug kernel: net2280 0000:05:00.0: disabled dma ep-b Jan 10 21:30:59 (none) user.info kernel: g_ether gadget: super-speed config #0: unconfigured Jan 10 21:30:59 (none) user.debug kernel: net2280 0000:05:00.0: ep0 status ack Jan 10 21:30:59 (none) user.debug kernel: g_ether gadget: suspend Syslog: net2280 0000:05:00.0: enabling device (0140 -> 0142) net2280 0000:05:00.0: Failed to enable MSI mode net2280 0000:05:00.0: PLX NET228x/USB338x USB Peripheral Controller net2280 0000:05:00.0: irq 83, pci mem d08a0000, chip rev 00ab net2280 0000:05:00.0: version: 2005 Sept 27/v3.0; dma enabled enhanced mode udc 0000:05:00.0: registering UDC driver [g_ether] using random self ethernet address using random host ethernet address usb0: HOST MAC 9e:51:09:72:76:be usb0: MAC b2:84:29:98:52:11 using random self ethernet address using random host ethernet address g_ether gadget: adding config #2 'RNDIS'/c03c2fb0 rndis_register: configNr = 0 g_ether gadget: adding 'rndis'/cf9576c0 to config 'RNDIS'/c03c2fb0 rndis_set_param_medium: 0 0 g_ether gadget: RNDIS: super speed IN/ep-a OUT/ep-b NOTIFY/ep-e g_ether gadget: cfg 2/c03c2fb0 speeds: super high full g_ether gadget: interface 0 = rndis/cf9576c0 g_ether gadget: interface 1 = rndis/cf9576c0 g_ether gadget: adding config #1 'CDC Ethernet (ECM)'/c03c2f04 g_ether gadget: adding 'cdc_ethernet'/cf957840 to config 'CDC Ethernet (ECM)'/c03c2f04 g_ether gadget: CDC Ethernet: super speed IN/ep-a OUT/ep-b NOTIFY/ep-e g_ether gadget: cfg 1/c03c2f04 speeds: super high full g_ether gadget: interface 0 = cdc_ethernet/cf957840 g_ether gadget: interface 1 = cdc_ethernet/cf957840 g_ether gadget: Ethernet Gadget, version: Memorial Day 2008 g_ether gadget: g_ether ready net2280 0000:05:00.0: Defect 7374 workaround soft will NOT operate net2280 0000:05:00.0: It will operate on cold-reboot and SS connect ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. 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