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Associate Handle Functionality #1

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Merged
calccrypto merged 1 commit into from
Mar 30, 2026
Merged

Associate Handle Functionality #1

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9 changes: 5 additions & 4 deletions include/dpusm/common.h
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Original file line number Diff line number Diff line change
Expand Up @@ -20,11 +20,12 @@ typedef enum {
DPUSM_OPTIONAL_COPY_TO_PTR = 1 << 1,
DPUSM_OPTIONAL_COPY_FROM_SCATTERLIST = 1 << 2,
DPUSM_OPTIONAL_COPY_TO_SCATTERLIST = 1 << 3,
DPUSM_OPTIONAL_MEM_STATS = 1 << 4,
DPUSM_OPTIONAL_ZERO_FILL = 1 << 5,
DPUSM_OPTIONAL_ALL_ZEROS = 1 << 6,
DPUSM_OPTIONAL_ASSOCIATE_HANDLE = 1 << 4,
DPUSM_OPTIONAL_MEM_STATS = 1 << 5,
DPUSM_OPTIONAL_ZERO_FILL = 1 << 6,
DPUSM_OPTIONAL_ALL_ZEROS = 1 << 7,

DPUSM_OPTIONAL_MAX = 1 << 7,
DPUSM_OPTIONAL_MAX = 1 << 8,
} dpusm_optional_t;

extern const char *DPUSM_OPTIONAL_STR[];
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3 changes: 3 additions & 0 deletions include/dpusm/provider_api.h
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Expand Up @@ -41,6 +41,9 @@ typedef struct dpusm_provider_functions {
/* free an offloader handle */
int (*free)(void *handle);

/* associate a pointer with a pre-existing handle */
int (*associate_handle)(void *handle, void *ptr);

struct {
/* memory -> offloader */
struct {
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3 changes: 3 additions & 0 deletions include/dpusm/user_api.h
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Expand Up @@ -54,6 +54,9 @@ typedef struct dpusm_user_functions {
/* free a handle */
int (*free)(void *handle);

/* associate a pointer with a pre-existing handle */
int (*associate_handle)(void *handle, void *ptr);

struct {
/* memory -> offloader */
struct {
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1 change: 1 addition & 0 deletions src/common.c
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Expand Up @@ -7,6 +7,7 @@ const char *DPUSM_OPTIONAL_STR[] = {
"copy_to_ptr",
"copy_from_scatterlist",
"copy_to_scatterlist",
"associate_handle",
"mem_stats",
"zero_fill",
"all_zeros",
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5 changes: 5 additions & 0 deletions src/provider.c
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Expand Up @@ -134,6 +134,11 @@ dpusmph_init(struct module *module, const dpusm_pf_t *funcs)
print_supported(name, enum2str(DPUSM_OPTIONAL_STR, DPUSM_OPTIONAL_COPY_TO_SCATTERLIST));
}

if (funcs->associate_handle) {
dpusmph->capabilities.optional |= DPUSM_OPTIONAL_ASSOCIATE_HANDLE;
print_supported(name, enum2str(DPUSM_OPTIONAL_STR, DPUSM_OPTIONAL_ASSOCIATE_HANDLE));
}

if (funcs->mem_stats) {
dpusmph->capabilities.optional |= DPUSM_OPTIONAL_MEM_STATS;
print_supported(name, enum2str(DPUSM_OPTIONAL_STR, DPUSM_OPTIONAL_MEM_STATS));
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92 changes: 51 additions & 41 deletions src/user.c
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Expand Up @@ -209,6 +209,15 @@ dpusm_free(void *handle) {
return rc;
}

static int
dpusm_associate_handle(void *handle, void *ptr) {
CHECK_HANDLE(handle, dpusmh, DPUSM_ERROR);
if (!FUNCS(dpusmh->provider)->associate_handle) {
return (DPUSM_NOT_IMPLEMENTED);
}
return (FUNCS(dpusmh->provider)->associate_handle(dpusmh->handle, ptr));
}

static int
dpusm_copy_from_generic(dpusm_mv_t *mv, const void *buf, size_t size) {
if (!mv || !buf) {
Expand Down Expand Up @@ -677,54 +686,55 @@ dpusm_disk_close(void *disk) {
}

static const dpusm_uf_t user_functions = {
.get = dpusm_get_provider,
.get_name = dpusm_get_provider_name,
.put = dpusm_put_provider,
.extract = dpusm_extract_provider,
.capabilities = dpusm_get_capabilities,
.alloc = dpusm_alloc,
.alloc_ref = dpusm_alloc_ref,
.get_size = dpusm_get_size,
.free = dpusm_free,
.copy = {
.from = {
.get = dpusm_get_provider,
.get_name = dpusm_get_provider_name,
.put = dpusm_put_provider,
.extract = dpusm_extract_provider,
.capabilities = dpusm_get_capabilities,
.alloc = dpusm_alloc,
.alloc_ref = dpusm_alloc_ref,
.get_size = dpusm_get_size,
.free = dpusm_free,
.associate_handle = dpusm_associate_handle,
.copy = {
.from = {
.generic = dpusm_copy_from_generic,
.ptr = dpusm_copy_from_ptr,
.scatterlist = dpusm_copy_from_scatterlist,
},
.to = {
},
.to = {
.generic = dpusm_copy_to_generic,
.ptr = dpusm_copy_to_ptr,
.scatterlist = dpusm_copy_to_scatterlist,
},
},
.mem_stats = dpusm_provider_mem_stats,
.zero_fill = dpusm_zero_fill,
.all_zeros = dpusm_all_zeros,
.compress = dpusm_compress,
.decompress = dpusm_decompress,
.checksum = dpusm_checksum,
.raid = {
.can_compute = dpusm_raid_can_compute,
.alloc = dpusm_raid_alloc,
.set_column = dpusm_raid_set_column,
.free = dpusm_raid_free,
.gen = dpusm_raid_gen,
.cmp = dpusm_raid_cmp,
.rec = dpusm_raid_rec,
},
.file = {
.open = dpusm_file_open,
.write = dpusm_file_write,
.close = dpusm_file_close,
},
.disk = {
.open = dpusm_disk_open,
.invalidate = dpusm_disk_invalidate,
.write = dpusm_disk_write,
.flush = dpusm_disk_flush,
.close = dpusm_disk_close,
},
},
.mem_stats = dpusm_provider_mem_stats,
.zero_fill = dpusm_zero_fill,
.all_zeros = dpusm_all_zeros,
.compress = dpusm_compress,
.decompress = dpusm_decompress,
.checksum = dpusm_checksum,
.raid = {
.can_compute = dpusm_raid_can_compute,
.alloc = dpusm_raid_alloc,
.set_column = dpusm_raid_set_column,
.free = dpusm_raid_free,
.gen = dpusm_raid_gen,
.cmp = dpusm_raid_cmp,
.rec = dpusm_raid_rec,
},
.file = {
.open = dpusm_file_open,
.write = dpusm_file_write,
.close = dpusm_file_close,
},
.disk = {
.open = dpusm_disk_open,
.invalidate = dpusm_disk_invalidate,
.write = dpusm_disk_write,
.flush = dpusm_disk_flush,
.close = dpusm_disk_close,
},
};

const dpusm_uf_t *
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