[lkml]   [2008]   [Aug]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH] ata: Add support for Long Logical Sectors and Long Physical Sectors
    > Obviously it is going to change per command -- because different
    > commands have different sizes. I was thinking that we could call the
    > driver to see if it can handle a particular sector size right after we
    > get the IDENTIFY data.

    The drivers need to know if you are going to be using odd sizes regularly
    so they can pick between

    - I do this fine who cares (most chips)
    - Er uh wtf its not 512 byts (some chip state machines)
    - FIFO off (performance hit) for this disk
    - FIFO managed for the odd command thats a funny size
    - Various other levels of software managed controller

    It's not a passive thing and we'd want to do it post identify on the
    drive pair as it'll often need per channel decisions (eg on FIFO)


     \ /
      Last update: 2008-08-06 16:33    [W:0.042 / U:2.524 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site