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78181a93d1
On Rockchip platforms, we use TRB_ENT for bulk Tx TRB.
However, the TRB_ENT can only be enabled for TRB if
the transfer length of the TRB is an integer multiple
of the EP maxpacket. The current code only check the
transfer length of the first TRB, it's not enough.
Without this patch, the xHCI fail to do Read(10) command
with the U3 Disk used VFAT filesystem on RK3566 Box board
(2 + 4)G DDR, the error log like this:
[ 23.165539] usb 2-1: new SuperSpeed Gen 1 USB device number 2 using xhci-hcd
[ 23.183342] usb 2-1: New USB device found, idVendor=0781, idProduct=55a3, bcdDevice= 1.00
[ 23.183418] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 23.183434] usb 2-1: Product: Ultra Luxe
[ 23.183447] usb 2-1: Manufacturer: SanDisk
...
[ 23.186615] usb-storage 2-1:1.0: USB Mass Storage device detected
[ 23.189013] scsi host0: usb-storage 2-1:1.0
[ 24.217186] scsi 0:0:0:0: Direct-Access SanDisk Ultra Luxe 1.00 PQ: 0 ANSI: 6
[ 24.219712] sd 0:0:0:0: [sda] 120127488 512-byte logical blocks: (61.5 GB/57.3 GiB)
[ 24.221263] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 24.221301] sd 0:0:0:0: [sda] Write Protect is off
[ 24.222162] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 24.243346] sd 0:0:0:0: [sda] Attached SCSI removable disk
[ 24.642325] FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ 25.862084] usb 2-1: reset SuperSpeed Gen 1 USB device number 2 using xhci-hcd
[ 25.882974] sd 0:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 25.883003] sd 0:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 50 28 01 00 00 3f 00
[ 28.349195] usb 2-1: reset SuperSpeed Gen 1 USB device number 2 using xhci-hcd
[ 28.366763] sd 0:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 28.366823] sd 0:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 01 15 4b 81 00 00 3f 00
Fixes: 0f580acb01 ("usb: xhci: add support for xhci trb ent quirk")
Signed-off-by: William Wu <william.wu@rock-chips.com>
Change-Id: Iaa8f87eba3146c09fda858704c96644da40f5859
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.