• James Smart's avatar
    lpfc: nvmet: Add support for NVME LS request hosthandle · 4c2805aa
    James Smart authored
    As the nvmet layer does not have the concept of a remoteport object, which
    can be used to identify the entity on the other end of the fabric that is
    to receive an LS, the hosthandle was introduced.  The driver passes the
    hosthandle, a value representative of the remote port, with a ls request
    receive. The LS request will create the association.  The transport will
    remember the hosthandle for the association, and if there is a need to
    initiate a LS request to the remote port for the association, the
    hosthandle will be used. When the driver loses connectivity with the
    remote port, it needs to notify the transport that the hosthandle is no
    longer valid, allowing the transport to terminate associations related to
    the hosthandle.
    
    This patch adds support to the driver for the hosthandle. The driver will
    use the ndlp pointer of the remote port for the hosthandle in calls to
    nvmet_fc_rcv_ls_req().  The discovery engine is updated to invalidate the
    hosthandle whenever connectivity with the remote port is lost.
    Signed-off-by: default avatarPaul Ely <paul.ely@broadcom.com>
    Signed-off-by: default avatarJames Smart <jsmart2021@gmail.com>
    Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
    Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
    Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    4c2805aa
lpfc_nvme.h 8.17 KB