• Jack Morgenstein's avatar
    IB/mlx4: Initialize SR-IOV IB support for slaves in master context · fc06573d
    Jack Morgenstein authored
    Allocate SR-IOV paravirtualization resources and MAD demuxing contexts
    on the master.
    
    This has two parts.  The first part is to initialize the structures to
    contain the contexts.  This is done at master startup time in
    mlx4_ib_init_sriov().
    
    The second part is to actually create the tunneling resources required
    on the master to support a slave.  This is performed the master
    detects that a slave has started up (MLX4_DEV_EVENT_SLAVE_INIT event
    generated when a slave initializes its comm channel).
    
    For the master, there is no such startup event, so it creates its own
    tunneling resources when it starts up.  In addition, the master also
    creates the real special QPs.  The ib_core layer on the master causes
    creation of proxy special QPs, since the master is also
    paravirtualized at the ib_core layer.
    Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
    Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
    fc06573d
cmd.c 45 KB