Send mpt request via doorbell handshake method.
int mpt_send_handshake_request(u8 cb_idx, MPT_ADAPTER * ioc, int reqBytes, u32 * req, int sleepFlag);
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.
This routine is used exclusively to send MptScsiTaskMgmt requests since they are required to be sent via doorbell handshake.
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.