MPT_SEND_HANDSHAKE_R(9)               Message-based devices               MPT_SEND_HANDSHAKE_R(9)



NAME
       mpt_send_handshake_request - Send MPT request via doorbell handshake method.

SYNOPSIS
       int mpt_send_handshake_request(u8 cb_idx, MPT_ADAPTER * ioc, int reqBytes, u32 * req,
                                      int sleepFlag);

ARGUMENTS
       cb_idx
           Handle of registered MPT protocol driver

       ioc
           Pointer to MPT adapter structure

       reqBytes
           Size of the request in bytes

       req
           Pointer to MPT request frame

       sleepFlag
           Use schedule if CAN_SLEEP else use udelay.

DESCRIPTION
       This routine is used exclusively to send MptScsiTaskMgmt requests since they are required
       to be sent via doorbell handshake.

NOTE
       It is the callers responsibility to byte-swap fields in the request which are greater than
       1 byte in size.

       Returns 0 for success, non-zero for failure.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   MPT_SEND_HANDSHAKE_R(9)