mpt_send_handshake_request
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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.

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