BLK_SET_STACKING_LIM(9) Block Devices BLK_SET_STACKING_LIM(9)NAME
blk_set_stacking_limits - set default limits for stacking devices
SYNOPSIS
void blk_set_stacking_limits(struct queue_limits * lim);
ARGUMENTS
lim
the queue_limits structure to reset
DESCRIPTION
Returns a queue_limit struct to its default state. Should be used by stacking drivers like DM that have no internal limits.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 BLK_SET_STACKING_LIM(9)
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ddi_dma_buf_setup(9F) Kernel Functions for Drivers ddi_dma_buf_setup(9F)NAME
ddi_dma_buf_setup - easier DMA setup for use with buffer structures
SYNOPSIS
#include <sys/ddi.h>
#include <sys/sunddi.h>
int ddi_dma_buf_setup(dev_info_t *dip, struct buf *bp, uint_t flags, int (*waitfp) (caddr_t),, caddr_t arg, ddi_dma_lim_t *lim,
ddi_dma_handle_t *handlep);
INTERFACE LEVEL
This interface is obsolete. ddi_dma_buf_bind_handle(9F) should be used instead.
PARAMETERS
dip A pointer to the device's dev_info structure.
bp A pointer to a system buffer structure (see buf(9S)).
flags Flags that go into a ddi_dma_req structure (see ddi_dma_req(9S)).
waitfp The address of a function to call back later if resources aren't available now. The special function addresses
DDI_DMA_SLEEP and DDI_DMA_DONTWAIT (see ddi_dma_req(9S)) are taken to mean, respectively, wait until resources are avail-
able, or do not wait at all and do not schedule a callback.
arg Argument to be passed to a callback function, if such a function is specified.
lim A pointer to a DMA limits structure for this device (see ddi_dma_lim_sparc(9S) or ddi_dma_lim_x86(9S)). If this pointer is
NULL, a default set of DMA limits is assumed.
handlep Pointer to a DMA handle. See ddi_dma_setup(9F) for a discussion of handle.
DESCRIPTION
ddi_dma_buf_setup() is an interface to ddi_dma_setup(9F). It uses its arguments to construct an appropriate ddi_dma_req structure and calls
ddi_dma_setup() with it.
RETURN VALUES
See ddi_dma_setup(9F) for the possible return values for this function.
CONTEXT
ddi_dma_buf_setup() can be called from user or interrupt context, except when waitfp is set to DDI_DMA_SLEEP, in which case it can be
called from user context only.
ATTRIBUTES
See attributes(5) for a description of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Stability Level |Obsolete |
+-----------------------------+-----------------------------+
SEE ALSO attributes(5), ddi_dma_addr_setup(9F), ddi_dma_free(9F), ddi_dma_htoc(9F), ddi_dma_setup(9F), ddi_dma_sync(9F), physio(9F), buf(9S),
ddi_dma_lim_sparc(9S), ddi_dma_lim_x86(9S), ddi_dma_req(9S)
Writing Device Drivers
SunOS 5.10 27 Sep 2002 ddi_dma_buf_setup(9F)
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