• Or Gerlitz's avatar
    IB/iser: New receive buffer posting logic · bcc60c38
    Or Gerlitz authored
    Currently, the recv buffer posting logic is based on the transactional
    nature of iSER which allows for posting a buffer before sending a PDU.
    Change this to post only when the number of outstanding recv buffers
    is below a water mark and in a batched manner, thus simplifying and
    optimizing the data path.  Use a pre-allocated ring of recv buffers
    instead of allocating from kmem cache.  A special treatment is given
    to the login response buffer whose size must be 8K unlike the size of
    buffers used for any other purpose which is 128 bytes.
    Signed-off-by: default avatarOr Gerlitz <ogerlitz@voltaire.com>
    Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
    bcc60c38
iser_verbs.c 22.5 KB