DEV_REMOVE_PACK(9) Network device support DEV_REMOVE_PACK(9)NAME
dev_remove_pack - remove packet handler
SYNOPSIS
void dev_remove_pack(struct packet_type * pt);
ARGUMENTS
pt
packet type declaration
DESCRIPTION
Remove a protocol handler that was previously added to the kernel protocol handlers by dev_add_pack. The passed packet_type is removed from
the kernel lists and can be freed or reused once this function returns.
This call sleeps to guarantee that no CPU is looking at the packet type after return.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 DEV_REMOVE_PACK(9)
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scsi_sync_pkt(9F) Kernel Functions for Drivers scsi_sync_pkt(9F)NAME
scsi_sync_pkt - synchronize CPU and I/O views of memory
SYNOPSIS
#include <sys/scsi/scsi.h>
void scsi_sync_pkt(struct scsi_pkt *pktp);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
PARAMETERS
pktp Pointer to a scsi_pkt(9S) structure.
DESCRIPTION
The scsi_sync_pkt() function is used to selectively synchronize a CPU's or device's view of the data associated with the SCSI packet that
has been mapped for I/O. This may involve operations such as flushes of CPU or I/O caches, as well as other more complex operations such as
stalling until hardware write buffers have drained.
This function need only be called under certain circumstances. When a SCSI packet is mapped for I/O using scsi_init_pkt(9F) and destroyed
using scsi_destroy_pkt(9F), then an implicit scsi_sync_pkt() will be performed. However, if the memory object has been modified by either
the device or a CPU after the mapping by scsi_init_pkt(9F), then a call to scsi_sync_pkt() is required.
If the same scsi_pkt is reused for a data transfer from memory to a device, then scsi_sync_pkt() must be called before calling scsi_trans-
port(9F). If the same packet is reused for a data transfer from a device to memory scsi_sync_pkt() must be called after the completion of
the packet but before accessing the data in memory.
CONTEXT
The scsi_sync_pkt() function may be called from user, interrupt, or kernel context.
SEE ALSO tran_sync_pkt(9E), ddi_dma_sync(9F), scsi_destroy_pkt(9F), scsi_init_pkt(9F), scsi_transport(9F), scsi_pkt(9S)
Writing Device Drivers
SunOS 5.11 16 Jan 2006 scsi_sync_pkt(9F)