[Bug 217122] Regression in xhci driver since 6.1 "Transfer event TRB DMA ptr not part of current TD"

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=217122

Dmitri (dmitri926@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dmitri926@gmail.com

--- Comment #35 from Dmitri (dmitri926@gmail.com) ---
Hi Mario & Michael,

I was able to test on a physical box. I'm not seeing the "Transfer event TRB
DMA ptr not part of current TD" error in dmesg but not able to capture any
packets either.

$ uname -a
Linux sonylaptop 6.5.0-0.a.test-amd64 #1 SMP PREEMPT_DYNAMIC Debian
6.5~rc4-1~exp1a~test (2023-08-07) x86_64 GNU/Linux

[ 1189.175651] usb 3-2: new high-speed USB device number 5 using xhci_hcd
[ 1189.326329] usb 3-2: New USB device found, idVendor=0e8d, idProduct=7961,
bcdDevice= 1.00
[ 1189.326351] usb 3-2: New USB device strings: Mfr=6, Product=7,
SerialNumber=8
[ 1189.326358] usb 3-2: Product: Wireless_Device
[ 1189.326363] usb 3-2: Manufacturer: MediaTek Inc.
[ 1189.326368] usb 3-2: SerialNumber: 000000000
[ 1189.332931] bluetooth hci1: firmware: direct-loading firmware
mediatek/BT_RAM_CODE_MT7961_1_2_hdr.bin
[ 1189.337734] mt7921u 3-2:1.3: firmware: direct-loading firmware
mediatek/WIFI_RAM_CODE_MT7961_1.bin
[ 1195.262160] mt7921u 3-2:1.3: firmware: direct-loading firmware
mediatek/WIFI_RAM_CODE_MT7961_1.bin
[ 1195.276095] mt7921u 3-2:1.3: WM Firmware Version: ____010000, Build Time:
20230526130958
[ 1196.916463] mt7921u 3-2:1.3 wlx00c0cab3c769: renamed from wlan0

    description: Motherboard
       product: VAIO
       vendor: Sony Corporation
       physical id: 0
       version: N/A
       serial: N/A
     *-firmware
          description: BIOS
          vendor: Insyde Corp.
          physical id: 0
          version: R0220DA
          date: 11/18/2013
          size: 128KiB
          capacity: 3MiB
          capabilities: pci pnp upgrade shadowing cdboot bootselect edd
int9keyboard int10video acpi usb smartbattery biosbootspecification netboot
uefi
     *-cpu
          description: CPU
          product: Intel(R) Core(TM) i5-3337U CPU @ 1.80GHz
          vendor: Intel Corp.
          physical id: 4
          bus info: cpu@0
          version: 6.58.9
          serial: N/A
          slot: N/A
          size: 2591MHz
     *-usbhost:1
                product: xHCI Host Controller
                vendor: Linux 6.5.0-0.a.test-amd64 xhci-hcd
                physical id: 1
                bus info: usb@4
                logical name: usb4
                version: 6.05
                capabilities: usb-3.00
                configuration: driver=hub slots=4 speed=5000Mbit/s

$ lsusb
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 0bda:5729 Realtek Semiconductor Corp. Front Camera
Bus 001 Device 003: ID 0489:e062 Foxconn / Hon Hai BCM43142A0
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 005: ID 0e8d:7961 MediaTek Inc. Wireless_Device
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ hcxdumptool -L

Requesting physical interface capabilities. This may take some time.
Please be patient...


available wlan devices:

phy idx hw-mac       virtual-mac  m ifname           driver (protocol)
---------------------------------------------------------------------------------------------
  3   6 00c0cab3c769 00c0cab3c769 * wlx00c0cab3c769  mt7921u (NETLINK)

* active monitor mode available
+ monitor mode available
- no monitor mode available


:~/work$ sudo iw dev $IFACE set type monitor
:~/work$ sudo ip link set $IFACE up
:~/work$ sudo iw dev
phy#3
        Interface wlx00c0cab3c769
                ifindex 6
                wdev 0x300000001
                addr d8:5d:fb:08:df:5c
                type monitor
                channel 6 (2437 MHz), width: 20 MHz (no HT), center1: 2437 MHz
                txpower 3.00 dBm
                multicast TXQ:
                        qsz-byt qsz-pkt flows   drops   marks   overlmt hashcol
tx-bytes        tx-packets
                        0       0       0       0       0       0       0      
0               0



$ sudo tshark -i $IFACE
Running as user "root" and group "root". This could be dangerous.
Capturing on 'wlx00c0cab3c769'
 ** (tshark:8102) 20:10:07.839462 [Main MESSAGE] -- Capture started.
 ** (tshark:8102) 20:10:07.839571 [Main MESSAGE] -- File:
"/tmp/wireshark_wlx00c0cab3c769SOIS91.pcapng"
^Ctshark:
0 packets captured

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