int scsi_poll(struct scsi_pkt *pkt);
Solaris DDI specific (Solaris DDI).
pkt Pointer to the scsi_pkt(9S) structure.
The scsi_poll() function requests the host adapter driver to run a polled command. Unlike scsi_transport(9F) which runs commands asynchronously, scsi_poll() runs commands to completion before returning. If the pkt_time member of pkt is 0, the value of pkt_time is defaulted to SCSI_POLL_TIMEOUT to prevent an indefinite hang of the system.
The scsi_poll() function returns:
0 command completed successfully.
-1 command failed.
The scsi_poll() function can be called from user, interrupt, or kernel context. This function should not be called when the caller is executing timeout(9F) in the context of a thread.
makecom(9F), scsi_transport(9F), scsi_pkt(9S)
Writing Device Drivers
Since scsi_poll() runs commands to completion before returning, it may require more time than is desirable when called from interrupt context. Therefore, calling scsi_poll from interrupt context is not recommended.