Differential D20745 Diff 59453 head/sys/geom/geom_flashmap.c

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head/sys/geom/geom_flashmap.c

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#include <sys/mutex.h>		#include <sys/mutex.h>
#include <sys/slicer.h>		#include <sys/slicer.h>

#include <geom/geom.h>		#include <geom/geom.h>
#include <geom/geom_disk.h>		#include <geom/geom_disk.h>
#include <geom/geom_flashmap.h>		#include <geom/geom_flashmap.h>
#include <geom/geom_slice.h>		#include <geom/geom_slice.h>

#include <dev/nand/nand_dev.h>

struct g_flashmap_slice {		struct g_flashmap_slice {
off_t sl_start;		off_t sl_start;
off_t sl_end;		off_t sl_end;
const char *sl_name;		const char *sl_name;

STAILQ_ENTRY(g_flashmap_slice) sl_link;		STAILQ_ENTRY(g_flashmap_slice) sl_link;
};		};

STAILQ_HEAD(g_flashmap_head, g_flashmap_slice);		STAILQ_HEAD(g_flashmap_head, g_flashmap_slice);

static struct {		static struct {
const char *type;		const char *type;
flash_slicer_t slicer;		flash_slicer_t slicer;
} g_flashmap_slicers[] = {		} g_flashmap_slicers[] = {
{ "NAND::device", NULL },		{ "NAND::device", NULL },
{ "CFI::device", NULL },		{ "CFI::device", NULL },
{ "SPI::device", NULL },		{ "SPI::device", NULL },
{ "MMC::device", NULL }		{ "MMC::device", NULL }
};		};

static g_ioctl_t g_flashmap_ioctl;
static g_taste_t g_flashmap_taste;		static g_taste_t g_flashmap_taste;

static int g_flashmap_load(device_t dev, struct g_provider *pp,		static int g_flashmap_load(device_t dev, struct g_provider *pp,
flash_slicer_t slicer, struct g_flashmap_head *head);		flash_slicer_t slicer, struct g_flashmap_head *head);
static int g_flashmap_modify(struct g_flashmap gfp, struct g_geom gp,		static int g_flashmap_modify(struct g_flashmap gfp, struct g_geom gp,
const char devname, int secsize, struct g_flashmap_head slices);		const char devname, int secsize, struct g_flashmap_head slices);
static void g_flashmap_print(struct g_flashmap_slice *slice);		static void g_flashmap_print(struct g_flashmap_slice *slice);

▲ Show 20 Lines • Show All 45 Lines • ▼ Show 20 Lines	STAILQ_FOREACH(slice, slices, sl_link) {

if (error)		if (error)
return (error);		return (error);
}		}

return (0);		return (0);
}		}

static int
g_flashmap_ioctl(struct g_provider pp, u_long cmd, void data, int fflag,
struct thread *td)
{
struct g_consumer *cp;
struct g_geom *gp;

if (cmd != NAND_IO_GET_CHIP_PARAM)
return (ENOIOCTL);

cp = LIST_FIRST(&pp->geom->consumer);
if (cp == NULL)
return (ENOIOCTL);
gp = cp->provider->geom;
if (gp->ioctl == NULL)
return (ENOIOCTL);

return (gp->ioctl(cp->provider, cmd, data, fflag, td));
}

static struct g_geom *		static struct g_geom *
g_flashmap_taste(struct g_class mp, struct g_provider pp, int flags)		g_flashmap_taste(struct g_class mp, struct g_provider pp, int flags)
{		{
struct g_geom *gp;		struct g_geom *gp;
struct g_consumer *cp;		struct g_consumer *cp;
struct g_flashmap_head head;		struct g_flashmap_head head;
struct g_flashmap_slice slice, slice_temp;		struct g_flashmap_slice slice, slice_temp;
struct g_flashmap *gfp;		struct g_flashmap *gfp;
▲ Show 20 Lines • Show All 82 Lines • ▼ Show 20 Lines	if (g_flashmap_slicers[type].slicer == NULL \|\| force == TRUE)
g_flashmap_slicers[type].slicer = slicer;		g_flashmap_slicers[type].slicer = slicer;
g_topology_unlock();		g_topology_unlock();
}		}

static struct g_class g_flashmap_class = {		static struct g_class g_flashmap_class = {
.name = FLASHMAP_CLASS_NAME,		.name = FLASHMAP_CLASS_NAME,
.version = G_VERSION,		.version = G_VERSION,
.taste = g_flashmap_taste,		.taste = g_flashmap_taste,
.ioctl = g_flashmap_ioctl,
};		};

DECLARE_GEOM_CLASS(g_flashmap_class, g_flashmap);		DECLARE_GEOM_CLASS(g_flashmap_class, g_flashmap);
MODULE_VERSION(g_flashmap, 0);		MODULE_VERSION(g_flashmap, 0);