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tran_sync_pkt - SCSI HBA memory synchronization entry point

#include <sys/scsi/scsi.h>



void prefixtran_sync_pkt(struct scsi_address *ap,
 struct scsi_pkt *pkt);

illumos architecture specific (illumos DDI). ap pkt The tran_sync_pkt() vector in the scsi_hba_tran(9S) structure must be initialized during the HBA driver's attach(9E) to point to an HBA driver entry point to be called when a target driver calls scsi_sync_pkt(9F).

tran_sync_pkt() must synchronize a HBA's or device's view of the data associated with the pkt, typically by calling ddi_dma_sync(9F). The operation may also involve HBA hardware-specific details, such as flushing I/O caches, or stalling until hardware buffers have been drained.

attach (9E), tran_init_pkt (9E), ddi_dma_sync (9F), scsi_hba_attach (9F), scsi_init_pkt (9F), scsi_sync_pkt (9F), scsi_address (9S), scsi_hba_tran (9S), scsi_pkt (9S)

Writing Device Drivers

A target driver may call tran_sync_pkt() on packets for which no DMA resources were allocated.