Eric Lee / smarc-fsl-linux-kernel

31 Mar, 2011

1 commit

13 Jun, 2009

1 commit

06 Jan, 2009

1 commit

04 Oct, 2006

5 commits

12 Oct, 2005

1 commit

  • ad6ce87e5   [PATCH] dell_rbu: changes in packet update mechanism ... Browse Code »

    In the current dell_rbu code ver 2.0 the packet update mechanism makes the
    user app dump every individual packet in to the driver.

    This adds in efficiency as every packet update makes the
    /sys/class/firmware/dell_rbu/loading and data files to disappear and reappear
    again. Thus the user app needs to wait for the files to reappear to dump
    another packet. This slows down the packet update tremendously in case of
    large number of packets. I am submitting a new patch for dell_rbu which will
    change the way we do packet updates;

    In the new method the user app will create a new single file which has already
    packetized the rbu image and all the packets are now staged in this file.

    This driver also creates a new entry in
    /sys/devices/platform/dell_rbu/packet_size ; the user needs to echo the packet
    size here before downloading the packet file.

    The user should do the following:

    create one single file which has all the packets stacked together.
    echo the packet size in to /sys/devices/platform/dell_rbu/packet_size.
    echo 1 > /sys/class/firmware/dell_rbu/loading
    cat the packetfile > /sys/class/firmware/dell_rbu/data
    echo 0 > /sys/class/firmware/dell_rbu/loading

    The driver takes the file which came through /sys/class/firmware/dell_rbu/data
    and takes chunks of paket_size data from it and place in contiguous memory.

    This makes packet update process very efficient and fast. As all the packet
    update happens in one single operation. The user can still read back the
    downloaded file from /sys/devices/platform/dell_rbu/data.

    Signed-off-by: Abhay Salunke
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Abhay Salunke
     

18 Sep, 2005

1 commit

  • e61c0e336   [PATCH] dell_rbu: enhancements and fixes ... Browse Code »

    BUG fixes:

    The driver used to allocate memory with spinlock held which has been
    fixed in this patch.

    The driver was printing the entire buffer when it received a invalid
    entry in image_type. The fix is to only print a warning message and not
    the buffer.

    Usability enhancements:

    It is possible that due to user error the /sys/class/firmware/dell_rbu
    entries might be missing, this can happen if the user does the following

    echo 1 > /sys/class/firmware/dell_rbu/loading
    echo 0 > /sys/class/firmware/dell_rbu/loading

    This will make the entries in /sys/class/firmware/ to disappear and the
    only way get them back was bby unloading and loading the driver.

    This patch makes the user recreate these entries by echoing init in to
    image_type.

    This patch has been tested with Libsmbios and Dell OpenManage.

    Signed-off-by: Abhay Salunke
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Abhay Salunke
     

08 Sep, 2005

1 commit