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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

January 2017 Kernel Hackers Manual 4.8.