• Justin.Lee1@Dell.com's avatar
    net/ncsi: Extend NC-SI Netlink interface to allow user space to send NC-SI command · 9771b8cc
    Justin.Lee1@Dell.com authored
    The new command (NCSI_CMD_SEND_CMD) is added to allow user space application
    to send NC-SI command to the network card.
    Also, add a new attribute (NCSI_ATTR_DATA) for transferring request and response.
    
    The work flow is as below.
    
    Request:
    User space application
    	-> Netlink interface (msg)
    	-> new Netlink handler - ncsi_send_cmd_nl()
    	-> ncsi_xmit_cmd()
    
    Response:
    Response received - ncsi_rcv_rsp()
    	-> internal response handler - ncsi_rsp_handler_xxx()
    	-> ncsi_rsp_handler_netlink()
    	-> ncsi_send_netlink_rsp ()
    	-> Netlink interface (msg)
    	-> user space application
    
    Command timeout - ncsi_request_timeout()
    	-> ncsi_send_netlink_timeout ()
    	-> Netlink interface (msg with zero data length)
    	-> user space application
    
    Error:
    Error detected
    	-> ncsi_send_netlink_err ()
    	-> Netlink interface (err msg)
    	-> user space application
    Signed-off-by: default avatarJustin Lee <justin.lee1@dell.com>
    Reviewed-by: default avatarSamuel Mendoza-Jonas <sam@mendozajonas.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    9771b8cc
internal.h 14.5 KB