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Name

tran_sync_pkt - SCSI HBA memory synchronization entry point

Synopsis

#include <sys/scsi/scsi.h>

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

Interface Level

Solaris architecture specific (Solaris DDI).

Arguments

ap
A pointer to a scsi_address(9S) structure.
pkt
A pointer to a scsi_pkt(9S) structure.

Description

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 CPU’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.

See Also

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)

Notes

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

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