Adds the new rte_mempool_create_ext api and callback mechanism for
external mempool handlers
Modifies the existing rte_mempool_create to set up the handler_idx to
the relevant mempool handler based on the handler name:
ring_sp_sc
ring_mp_mc
ring_sp_mc
ring_mp_sc
Signed-off-by: David Hunt <david.hunt at intel.com>
---
app/test/test_mempool_perf.c | 1 -
lib/librte_mempool/Makefile | 1 +
lib/librte_mempool/rte_mempool.c | 210 +++++++++++++++++++--------
lib/librte_mempool/rte_mempool.h | 207 +++++++++++++++++++++++----
lib/librte_mempool/rte_mempool_default.c | 229 ++++++++++++++++++++++++++++++
lib/librte_mempool/rte_mempool_internal.h | 74 ++++++++++
6 files changed, 634 insertions(+), 88 deletions(-)
create mode 100644 lib/librte_mempool/rte_mempool_default.c
create mode 100644 lib/librte_mempool/rte_mempool_internal.h
diff --git a/app/test/test_mempool_perf.c b/app/test/test_mempool_perf.c
index cdc02a0..091c1df 100644
--- a/app/test/test_mempool_perf.c
+++ b/app/test/test_mempool_perf.c
@@ -161,7 +161,6 @@ per_lcore_mempool_test(__attribute__((unused)) void *arg)
n_get_bulk);
if (unlikely(ret < 0)) {
rte_mempool_dump(stdout, mp);
- rte_ring_dump(stdout, mp->ring);
/* in this case, objects are lost... */
return -1;
}
diff --git a/lib/librte_mempool/Makefile b/lib/librte_mempool/Makefile
index a6898ef..7c81ef6 100644
--- a/lib/librte_mempool/Makefile
+++ b/lib/librte_mempool/Makefile
@@ -42,6 +42,7 @@ LIBABIVER := 1
# all source are stored in SRCS-y
SRCS-$(CONFIG_RTE_LIBRTE_MEMPOOL) += rte_mempool.c
+SRCS-$(CONFIG_RTE_LIBRTE_MEMPOOL) += rte_mempool_default.c
ifeq ($(CONFIG_RTE_LIBRTE_XEN_DOM0),y)
SRCS-$(CONFIG_RTE_LIBRTE_MEMPOOL) += rte_dom0_mempool.c
endif
diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index aff5f6d..8c01838 100644
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -59,10 +59,11 @@
#include <rte_spinlock.h>
#include "rte_mempool.h"
+#include "rte_mempool_internal.h"
TAILQ_HEAD(rte_mempool_list, rte_tailq_entry);
-static struct rte_tailq_elem rte_mempool_tailq = {
+struct rte_tailq_elem rte_mempool_tailq = {
.name = "RTE_MEMPOOL",
};
EAL_REGISTER_TAILQ(rte_mempool_tailq)
@@ -149,7 +150,7 @@ mempool_add_elem(struct rte_mempool *mp, void *obj,
uint32_t obj_idx,
obj_init(mp, obj_init_arg, obj, obj_idx);
/* enqueue in ring */
- rte_ring_sp_enqueue(mp->ring, obj);
+ rte_mempool_ext_put_bulk(mp, &obj, 1);
}
uint32_t
@@ -375,48 +376,28 @@ rte_mempool_xmem_usage(void *vaddr, uint32_t elt_num,
size_t elt_sz,
return usz;
}
-#ifndef RTE_LIBRTE_XEN_DOM0
-/* stub if DOM0 support not configured */
-struct rte_mempool *
-rte_dom0_mempool_create(const char *name __rte_unused,
- unsigned n __rte_unused,
- unsigned elt_size __rte_unused,
- unsigned cache_size __rte_unused,
- unsigned private_data_size __rte_unused,
- rte_mempool_ctor_t *mp_init __rte_unused,
- void *mp_init_arg __rte_unused,
- rte_mempool_obj_ctor_t *obj_init __rte_unused,
- void *obj_init_arg __rte_unused,
- int socket_id __rte_unused,
- unsigned flags __rte_unused)
-{
- rte_errno = EINVAL;
- return NULL;
-}
-#endif
-
/* create the mempool */
struct rte_mempool *
rte_mempool_create(const char *name, unsigned n, unsigned elt_size,
- unsigned cache_size, unsigned private_data_size,
- rte_mempool_ctor_t *mp_init, void *mp_init_arg,
- rte_mempool_obj_ctor_t *obj_init, void *obj_init_arg,
- int socket_id, unsigned flags)
+ unsigned cache_size, unsigned private_data_size,
+ rte_mempool_ctor_t *mp_init, void *mp_init_arg,
+ rte_mempool_obj_ctor_t *obj_init, void *obj_init_arg,
+ int socket_id, unsigned flags)
{
if (rte_xen_dom0_supported())
return rte_dom0_mempool_create(name, n, elt_size,
- cache_size, private_data_size,
- mp_init, mp_init_arg,
- obj_init, obj_init_arg,
- socket_id, flags);
+ cache_size, private_data_size,
+ mp_init, mp_init_arg,
+ obj_init, obj_init_arg,
+ socket_id, flags);
else
return rte_mempool_xmem_create(name, n, elt_size,
- cache_size, private_data_size,
- mp_init, mp_init_arg,
- obj_init, obj_init_arg,
- socket_id, flags,
- NULL, NULL,
MEMPOOL_PG_NUM_DEFAULT,
- MEMPOOL_PG_SHIFT_MAX);
+ cache_size, private_data_size,
+ mp_init, mp_init_arg,
+ obj_init, obj_init_arg,
+ socket_id, flags,
+ NULL, NULL,
+ MEMPOOL_PG_NUM_DEFAULT, MEMPOOL_PG_SHIFT_MAX);
}
/*
@@ -435,11 +416,9 @@ rte_mempool_xmem_create(const char *name, unsigned n,
unsigned elt_size,
const phys_addr_t paddr[], uint32_t pg_num, uint32_t pg_shift)
{
char mz_name[RTE_MEMZONE_NAMESIZE];
- char rg_name[RTE_RING_NAMESIZE];
struct rte_mempool_list *mempool_list;
struct rte_mempool *mp = NULL;
struct rte_tailq_entry *te;
- struct rte_ring *r;
const struct rte_memzone *mz;
size_t mempool_size;
int mz_flags = RTE_MEMZONE_1GB|RTE_MEMZONE_SIZE_HINT_ONLY;
@@ -469,7 +448,7 @@ rte_mempool_xmem_create(const char *name, unsigned n,
unsigned elt_size,
/* asked cache too big */
if (cache_size > RTE_MEMPOOL_CACHE_MAX_SIZE ||
- CALC_CACHE_FLUSHTHRESH(cache_size) > n) {
+ CALC_CACHE_FLUSHTHRESH(cache_size) > n) {
rte_errno = EINVAL;
return NULL;
}
@@ -502,16 +481,8 @@ rte_mempool_xmem_create(const char *name, unsigned n,
unsigned elt_size,
return NULL;
}
- rte_rwlock_write_lock(RTE_EAL_MEMPOOL_RWLOCK);
- /* allocate the ring that will be used to store objects */
- /* Ring functions will return appropriate errors if we are
- * running as a secondary process etc., so no checks made
- * in this function for that condition */
- snprintf(rg_name, sizeof(rg_name), RTE_MEMPOOL_MZ_FORMAT, name);
- r = rte_ring_create(rg_name, rte_align32pow2(n+1), socket_id, rg_flags);
- if (r == NULL)
- goto exit;
+ rte_rwlock_write_lock(RTE_EAL_MEMPOOL_RWLOCK);
/*
* reserve a memory zone for this mempool: private data is
@@ -588,7 +559,6 @@ rte_mempool_xmem_create(const char *name, unsigned n,
unsigned elt_size,
memset(mp, 0, sizeof(*mp));
snprintf(mp->name, sizeof(mp->name), "%s", name);
mp->phys_addr = mz->phys_addr;
- mp->ring = r;
mp->size = n;
mp->flags = flags;
mp->elt_size = objsz.elt_size;
@@ -598,6 +568,22 @@ rte_mempool_xmem_create(const char *name, unsigned n,
unsigned elt_size,
mp->cache_flushthresh = CALC_CACHE_FLUSHTHRESH(cache_size);
mp->private_data_size = private_data_size;
+ /*
+ * Since we have 4 combinations of the SP/SC/MP/MC, and stack,
+ * examine the
+ * flags to set the correct index into the handler table.
+ */
+ if (flags & MEMPOOL_F_USE_STACK)
+ mp->handler_idx = rte_get_mempool_handler("stack");
+ else if (flags & (MEMPOOL_F_SP_PUT | MEMPOOL_F_SC_GET))
+ mp->handler_idx = rte_get_mempool_handler("ring_sp_sc");
+ else if (flags & MEMPOOL_F_SP_PUT)
+ mp->handler_idx = rte_get_mempool_handler("ring_sp_mc");
+ else if (flags & MEMPOOL_F_SC_GET)
+ mp->handler_idx = rte_get_mempool_handler("ring_mp_sc");
+ else
+ mp->handler_idx = rte_get_mempool_handler("ring_mp_mc");
+
/* calculate address of the first element for continuous mempool. */
obj = (char *)mp + MEMPOOL_HEADER_SIZE(mp, pg_num) +
private_data_size;
@@ -613,7 +599,6 @@ rte_mempool_xmem_create(const char *name, unsigned n,
unsigned elt_size,
mp->elt_va_start = (uintptr_t)obj;
mp->elt_pa[0] = mp->phys_addr +
(mp->elt_va_start - (uintptr_t)mp);
-
/* mempool elements in a separate chunk of memory. */
} else {
mp->elt_va_start = (uintptr_t)vaddr;
@@ -622,6 +607,10 @@ rte_mempool_xmem_create(const char *name, unsigned n,
unsigned elt_size,
mp->elt_va_end = mp->elt_va_start;
+ /* Parameters are setup. Call the mempool handler alloc */
+ if ((rte_mempool_ext_alloc(mp, name, n, socket_id, flags)) == NULL)
+ goto exit;
+
/* call the initializer */
if (mp_init)
mp_init(mp, mp_init_arg);
@@ -646,7 +635,7 @@ rte_mempool_count(const struct rte_mempool *mp)
{
unsigned count;
- count = rte_ring_count(mp->ring);
+ count = rte_mempool_ext_get_count(mp);
#if RTE_MEMPOOL_CACHE_MAX_SIZE > 0
{
@@ -681,7 +670,9 @@ rte_mempool_dump_cache(FILE *f, const struct rte_mempool
*mp)
fprintf(f, " cache_size=%"PRIu32"\n", mp->cache_size);
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
cache_count = mp->local_cache[lcore_id].len;
- fprintf(f, " cache_count[%u]=%u\n", lcore_id, cache_count);
+ if (cache_count > 0)
+ fprintf(f, " cache_count[%u]=%u\n",
+ lcore_id, cache_count);
count += cache_count;
}
fprintf(f, " total_cache_count=%u\n", count);
@@ -802,14 +793,13 @@ rte_mempool_dump(FILE *f, const struct rte_mempool *mp)
fprintf(f, "mempool <%s>@%p\n", mp->name, mp);
fprintf(f, " flags=%x\n", mp->flags);
- fprintf(f, " ring=<%s>@%p\n", mp->ring->name, mp->ring);
fprintf(f, " phys_addr=0x%" PRIx64 "\n", mp->phys_addr);
fprintf(f, " size=%"PRIu32"\n", mp->size);
fprintf(f, " header_size=%"PRIu32"\n", mp->header_size);
fprintf(f, " elt_size=%"PRIu32"\n", mp->elt_size);
fprintf(f, " trailer_size=%"PRIu32"\n", mp->trailer_size);
fprintf(f, " total_obj_size=%"PRIu32"\n",
- mp->header_size + mp->elt_size + mp->trailer_size);
+ mp->header_size + mp->elt_size + mp->trailer_size);
fprintf(f, " private_data_size=%"PRIu32"\n", mp->private_data_size);
fprintf(f, " pg_num=%"PRIu32"\n", mp->pg_num);
@@ -825,7 +815,7 @@ rte_mempool_dump(FILE *f, const struct rte_mempool *mp)
mp->size);
cache_count = rte_mempool_dump_cache(f, mp);
- common_count = rte_ring_count(mp->ring);
+ common_count = /* rte_ring_count(mp->ring)*/0;
if ((cache_count + common_count) > mp->size)
common_count = mp->size - cache_count;
fprintf(f, " common_pool_count=%u\n", common_count);
@@ -904,7 +894,7 @@ rte_mempool_lookup(const char *name)
}
void rte_mempool_walk(void (*func)(const struct rte_mempool *, void *),
- void *arg)
+ void *arg)
{
struct rte_tailq_entry *te = NULL;
struct rte_mempool_list *mempool_list;
@@ -919,3 +909,111 @@ void rte_mempool_walk(void (*func)(const struct
rte_mempool *, void *),
rte_rwlock_read_unlock(RTE_EAL_MEMPOOL_RWLOCK);
}
+
+
+/* create the mempool using and external mempool manager */
+struct rte_mempool *
+rte_mempool_create_ext(const char *name, unsigned n, unsigned elt_size,
+ unsigned cache_size, unsigned private_data_size,
+ rte_mempool_ctor_t *mp_init, void *mp_init_arg,
+ rte_mempool_obj_ctor_t *obj_init, void *obj_init_arg,
+ int socket_id, unsigned flags,
+ const char *handler_name)
+{
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ struct rte_mempool_list *mempool_list;
+ struct rte_mempool *mp = NULL;
+ struct rte_tailq_entry *te;
+ const struct rte_memzone *mz;
+ size_t mempool_size;
+ int mz_flags = RTE_MEMZONE_1GB|RTE_MEMZONE_SIZE_HINT_ONLY;
+ int rg_flags = 0;
+ int16_t handler_idx;
+
+ mempool_list = RTE_TAILQ_CAST(rte_mempool_tailq.head, rte_mempool_list);
+
+ /* asked cache too big */
+ if (cache_size > RTE_MEMPOOL_CACHE_MAX_SIZE ||
+ CALC_CACHE_FLUSHTHRESH(cache_size) > n) {
+ rte_errno = EINVAL;
+ return NULL;
+ }
+
+ handler_idx = rte_get_mempool_handler(handler_name);
+ if (handler_idx < 0) {
+ RTE_LOG(ERR, MEMPOOL, "Cannot find mempool handler by name!\n");
+ goto exit;
+ }
+
+ /* ring flags */
+ if (flags & MEMPOOL_F_SP_PUT)
+ rg_flags |= RING_F_SP_ENQ;
+ if (flags & MEMPOOL_F_SC_GET)
+ rg_flags |= RING_F_SC_DEQ;
+
+ rte_rwlock_write_lock(RTE_EAL_MEMPOOL_RWLOCK);
+
+ /*
+ * reserve a memory zone for this mempool: private data is
+ * cache-aligned
+ */
+ private_data_size = RTE_ALIGN_CEIL(private_data_size,
+ RTE_MEMPOOL_ALIGN);
+
+ /* try to allocate tailq entry */
+ te = rte_zmalloc("MEMPOOL_TAILQ_ENTRY", sizeof(*te), 0);
+ if (te == NULL) {
+ RTE_LOG(ERR, MEMPOOL, "Cannot allocate tailq entry!\n");
+ goto exit;
+ }
+
+ /*
+ * If user provided an external memory buffer, then use it to
+ * store mempool objects. Otherwise reserve a memzone that is large
+ * enough to hold mempool header and metadata plus mempool objects.
+ */
+ mempool_size = sizeof(*mp) + private_data_size;
+ mempool_size = RTE_ALIGN_CEIL(mempool_size, RTE_MEMPOOL_ALIGN);
+
+ snprintf(mz_name, sizeof(mz_name), RTE_MEMPOOL_MZ_FORMAT, name);
+
+ mz = rte_memzone_reserve(mz_name, mempool_size, socket_id, mz_flags);
+
+ /* no more memory */
+ if (mz == NULL) {
+ rte_free(te);
+ goto exit;
+ }
+
+ /* init the mempool structure */
+ mp = mz->addr;
+ memset(mp, 0, sizeof(*mp));
+ snprintf(mp->name, sizeof(mp->name), "%s", name);
+ mp->phys_addr = mz->phys_addr;
+ mp->size = n;
+ mp->flags = flags;
+ mp->cache_size = cache_size;
+ mp->cache_flushthresh = CALC_CACHE_FLUSHTHRESH(cache_size);
+ mp->private_data_size = private_data_size;
+ mp->handler_idx = handler_idx;
+ mp->elt_size = elt_size;
+ mp->rt_pool = rte_mempool_ext_alloc(mp, name, n, socket_id, flags);
+
+ /* call the initializer */
+ if (mp_init)
+ mp_init(mp, mp_init_arg);
+
+ mempool_populate(mp, n, 1, obj_init, obj_init_arg);
+
+ te->data = (void *) mp;
+
+ rte_rwlock_write_lock(RTE_EAL_TAILQ_RWLOCK);
+ TAILQ_INSERT_TAIL(mempool_list, te, next);
+ rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK);
+
+exit:
+ rte_rwlock_write_unlock(RTE_EAL_MEMPOOL_RWLOCK);
+
+ return mp;
+
+}
diff --git a/lib/librte_mempool/rte_mempool.h b/lib/librte_mempool/rte_mempool.h
index 6e2390a..620cfb7 100644
--- a/lib/librte_mempool/rte_mempool.h
+++ b/lib/librte_mempool/rte_mempool.h
@@ -88,6 +88,8 @@ extern "C" {
struct rte_mempool_debug_stats {
uint64_t put_bulk; /**< Number of puts. */
uint64_t put_objs; /**< Number of objects successfully put. */
+ uint64_t put_pool_bulk; /**< Number of puts into pool. */
+ uint64_t put_pool_objs; /**< Number of objects into pool. */
uint64_t get_success_bulk; /**< Successful allocation number. */
uint64_t get_success_objs; /**< Objects successfully allocated. */
uint64_t get_fail_bulk; /**< Failed allocation number. */
@@ -123,6 +125,7 @@ struct rte_mempool_objsz {
#define RTE_MEMPOOL_NAMESIZE 32 /**< Maximum length of a memory pool. */
#define RTE_MEMPOOL_MZ_PREFIX "MP_"
+
/* "MP_<name>" */
#define RTE_MEMPOOL_MZ_FORMAT RTE_MEMPOOL_MZ_PREFIX "%s"
@@ -175,12 +178,85 @@ struct rte_mempool_objtlr {
#endif
};
+/* Handler functions for external mempool support */
+typedef void *(*rte_mempool_alloc_t)(struct rte_mempool *mp,
+ const char *name, unsigned n, int socket_id, unsigned flags);
+typedef int (*rte_mempool_put_t)(void *p,
+ void * const *obj_table, unsigned n);
+typedef int (*rte_mempool_get_t)(void *p, void **obj_table,
+ unsigned n);
+typedef unsigned (*rte_mempool_get_count)(void *p);
+typedef int(*rte_mempool_free_t)(struct rte_mempool *mp);
+
+/**
+ * @internal wrapper for external mempool manager alloc callback.
+ *
+ * @param mp
+ * Pointer to the memory pool.
+ * @param name
+ * Name of the statistics field to increment in the memory pool.
+ * @param n
+ * Number to add to the object-oriented statistics.
+ * @param socket_id
+ * socket id on which to allocate.
+ * @param flags
+ * general flags to allocate function
+ */
+void *
+rte_mempool_ext_alloc(struct rte_mempool *mp,
+ const char *name, unsigned n, int socket_id, unsigned flags);
+
+/**
+ * @internal wrapper for external mempool manager get callback.
+ *
+ * @param mp
+ * Pointer to the memory pool.
+ * @param obj_table
+ * Pointer to a table of void * pointers (objects).
+ * @param n
+ * Number of objects to get
+ */
+int
+rte_mempool_ext_get_bulk(struct rte_mempool *mp, void **obj_table,
+ unsigned n);
+
+/**
+ * @internal wrapper for external mempool manager put callback.
+ *
+ * @param mp
+ * Pointer to the memory pool.
+ * @param obj_table
+ * Pointer to a table of void * pointers (objects).
+ * @param n
+ * Number of objects to put
+ */
+int
+rte_mempool_ext_put_bulk(struct rte_mempool *mp, void * const *obj_table,
+ unsigned n);
+
+/**
+ * @internal wrapper for external mempool manager get_count callback.
+ *
+ * @param mp
+ * Pointer to the memory pool.
+ */
+int
+rte_mempool_ext_get_count(const struct rte_mempool *mp);
+
+/**
+ * @internal wrapper for external mempool manager free callback.
+ *
+ * @param mp
+ * Pointer to the memory pool.
+ */
+int
+rte_mempool_ext_free(struct rte_mempool *mp);
+
/**
* The RTE mempool structure.
*/
struct rte_mempool {
char name[RTE_MEMPOOL_NAMESIZE]; /**< Name of mempool. */
- struct rte_ring *ring; /**< Ring to store objects. */
phys_addr_t phys_addr; /**< Phys. addr. of mempool struct. */
int flags; /**< Flags of the mempool. */
uint32_t size; /**< Size of the mempool. */
@@ -194,6 +270,11 @@ struct rte_mempool {
unsigned private_data_size; /**< Size of private data. */
+ /* Common pool data structure pointer */
+ void *rt_pool __rte_cache_aligned;
+
+ int16_t handler_idx;
+
#if RTE_MEMPOOL_CACHE_MAX_SIZE > 0
/** Per-lcore local cache. */
struct rte_mempool_cache local_cache[RTE_MAX_LCORE];
@@ -223,6 +304,10 @@ struct rte_mempool {
#define MEMPOOL_F_NO_CACHE_ALIGN 0x0002 /**< Do not align objs on cache
lines.*/
#define MEMPOOL_F_SP_PUT 0x0004 /**< Default put is
"single-producer".*/
#define MEMPOOL_F_SC_GET 0x0008 /**< Default get is
"single-consumer".*/
+#define MEMPOOL_F_USE_STACK 0x0010 /**< Use a stack for the common pool.
*/
+#define MEMPOOL_F_USE_TM 0x0020
+#define MEMPOOL_F_NO_SECONDARY 0x0040
+
/**
* @internal When debug is enabled, store some statistics.
@@ -728,7 +813,6 @@ rte_dom0_mempool_create(const char *name, unsigned n,
unsigned elt_size,
rte_mempool_obj_ctor_t *obj_init, void *obj_init_arg,
int socket_id, unsigned flags);
-
/**
* Dump the status of the mempool to the console.
*
@@ -753,7 +837,7 @@ void rte_mempool_dump(FILE *f, const struct rte_mempool
*mp);
*/
static inline void __attribute__((always_inline))
__mempool_put_bulk(struct rte_mempool *mp, void * const *obj_table,
- unsigned n, int is_mp)
+ unsigned n, __attribute__((unused)) int is_mp)
{
#if RTE_MEMPOOL_CACHE_MAX_SIZE > 0
struct rte_mempool_cache *cache;
@@ -769,8 +853,7 @@ __mempool_put_bulk(struct rte_mempool *mp, void * const
*obj_table,
#if RTE_MEMPOOL_CACHE_MAX_SIZE > 0
/* cache is not enabled or single producer or non-EAL thread */
- if (unlikely(cache_size == 0 || is_mp == 0 ||
- lcore_id >= RTE_MAX_LCORE))
+ if (unlikely(cache_size == 0 || lcore_id >= RTE_MAX_LCORE))
goto ring_enqueue;
/* Go straight to ring if put would overflow mem allocated for cache */
@@ -793,8 +876,8 @@ __mempool_put_bulk(struct rte_mempool *mp, void * const
*obj_table,
cache->len += n;
- if (cache->len >= flushthresh) {
- rte_ring_mp_enqueue_bulk(mp->ring, &cache->objs[cache_size],
+ if (unlikely(cache->len >= flushthresh)) {
+ rte_mempool_ext_put_bulk(mp, &cache->objs[cache_size],
cache->len - cache_size);
cache->len = cache_size;
}
@@ -804,22 +887,10 @@ __mempool_put_bulk(struct rte_mempool *mp, void * const
*obj_table,
ring_enqueue:
#endif /* RTE_MEMPOOL_CACHE_MAX_SIZE > 0 */
- /* push remaining objects in ring */
-#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
- if (is_mp) {
- if (rte_ring_mp_enqueue_bulk(mp->ring, obj_table, n) < 0)
- rte_panic("cannot put objects in mempool\n");
- }
- else {
- if (rte_ring_sp_enqueue_bulk(mp->ring, obj_table, n) < 0)
- rte_panic("cannot put objects in mempool\n");
- }
-#else
- if (is_mp)
- rte_ring_mp_enqueue_bulk(mp->ring, obj_table, n);
- else
- rte_ring_sp_enqueue_bulk(mp->ring, obj_table, n);
-#endif
+ /* Increment stats counter to tell us how many pool puts happened */
+ __MEMPOOL_STAT_ADD(mp, put_pool, n);
+
+ rte_mempool_ext_put_bulk(mp, obj_table, n);
}
@@ -943,7 +1014,7 @@ rte_mempool_put(struct rte_mempool *mp, void *obj)
*/
static inline int __attribute__((always_inline))
__mempool_get_bulk(struct rte_mempool *mp, void **obj_table,
- unsigned n, int is_mc)
+ unsigned n, __attribute__((unused))int is_mc)
{
int ret;
#if RTE_MEMPOOL_CACHE_MAX_SIZE > 0
@@ -954,8 +1025,8 @@ __mempool_get_bulk(struct rte_mempool *mp, void
**obj_table,
uint32_t cache_size = mp->cache_size;
/* cache is not enabled or single consumer */
- if (unlikely(cache_size == 0 || is_mc == 0 ||
- n >= cache_size || lcore_id >= RTE_MAX_LCORE))
+ if (unlikely(cache_size == 0 || n >= cache_size ||
+ lcore_id >= RTE_MAX_LCORE))
goto ring_dequeue;
cache = &mp->local_cache[lcore_id];
@@ -967,7 +1038,8 @@ __mempool_get_bulk(struct rte_mempool *mp, void
**obj_table,
uint32_t req = n + (cache_size - cache->len);
/* How many do we require i.e. number to fill the cache + the
request */
- ret = rte_ring_mc_dequeue_bulk(mp->ring,
&cache->objs[cache->len], req);
+ ret = rte_mempool_ext_get_bulk(mp,
+ &cache->objs[cache->len], req);
if (unlikely(ret < 0)) {
/*
* In the offchance that we are buffer constrained,
@@ -995,10 +1067,7 @@ ring_dequeue:
#endif /* RTE_MEMPOOL_CACHE_MAX_SIZE > 0 */
/* get remaining objects from ring */
- if (is_mc)
- ret = rte_ring_mc_dequeue_bulk(mp->ring, obj_table, n);
- else
- ret = rte_ring_sc_dequeue_bulk(mp->ring, obj_table, n);
+ ret = rte_mempool_ext_get_bulk(mp, obj_table, n);
if (ret < 0)
__MEMPOOL_STAT_ADD(mp, get_fail, n);
@@ -1401,6 +1470,82 @@ ssize_t rte_mempool_xmem_usage(void *vaddr, uint32_t
elt_num, size_t elt_sz,
void rte_mempool_walk(void (*func)(const struct rte_mempool *, void *arg),
void *arg);
+/**
+ * Function to get an index to an external mempool manager
+ *
+ * @param name
+ * The name of the mempool handler to search for in the list of handlers
+ * @return
+ * The index of the mempool handler in the list of registered mempool
+ * handlers
+ */
+int16_t
+rte_get_mempool_handler(const char *name);
+
+
+/**
+ * Create a new mempool named *name* in memory.
+ *
+ * This function uses an externally defined alloc callback to allocate memory.
+ * Its size is set to n elements.
+ * All elements of the mempool are allocated separately to the mempool header.
+ *
+ * @param name
+ * The name of the mempool.
+ * @param n
+ * The number of elements in the mempool. The optimum size (in terms of
+ * memory usage) for a mempool is when n is a power of two minus one:
+ * n = (2^q - 1).
+ * @param cache_size
+ * If cache_size is non-zero, the rte_mempool library will try to
+ * limit the accesses to the common lockless pool, by maintaining a
+ * per-lcore object cache. This argument must be lower or equal to
+ * CONFIG_RTE_MEMPOOL_CACHE_MAX_SIZE and n / 1.5. It is advised to choose
+ * cache_size to have "n modulo cache_size == 0": if this is
+ * not the case, some elements will always stay in the pool and will
+ * never be used. The access to the per-lcore table is of course
+ * faster than the multi-producer/consumer pool. The cache can be
+ * disabled if the cache_size argument is set to 0; it can be useful to
+ * avoid losing objects in cache. Note that even if not used, the
+ * memory space for cache is always reserved in a mempool structure,
+ * except if CONFIG_RTE_MEMPOOL_CACHE_MAX_SIZE is set to 0.
+ * @param private_data_size
+ * The size of the private data appended after the mempool
+ * structure. This is useful for storing some private data after the
+ * mempool structure, as is done for rte_mbuf_pool for example.
+ * @param mp_init
+ * A function pointer that is called for initialization of the pool,
+ * before object initialization. The user can initialize the private
+ * data in this function if needed. This parameter can be NULL if
+ * not needed.
+ * @param mp_init_arg
+ * An opaque pointer to data that can be used in the mempool
+ * constructor function.
+ * @param obj_init
+ * A function pointer that is called for each object at
+ * initialization of the pool. The user can set some meta data in
+ * objects if needed. This parameter can be NULL if not needed.
+ * The obj_init() function takes the mempool pointer, the init_arg,
+ * the object pointer and the object number as parameters.
+ * @param obj_init_arg
+ * An opaque pointer to data that can be used as an argument for
+ * each call to the object constructor function.
+ * @param socket_id
+ * The *socket_id* argument is the socket identifier in the case of
+ * NUMA. The value can be *SOCKET_ID_ANY* if there is no NUMA
+ * constraint for the reserved zone.
+ * @param flags
+ * @return
+ * The pointer to the new allocated mempool, on success. NULL on error
+ */
+struct rte_mempool *
+rte_mempool_create_ext(const char *name, unsigned n, unsigned elt_size,
+ unsigned cache_size, unsigned private_data_size,
+ rte_mempool_ctor_t *mp_init, void *mp_init_arg,
+ rte_mempool_obj_ctor_t *obj_init, void *obj_init_arg,
+ int socket_id, unsigned flags,
+ const char *handler_name);
+
#ifdef __cplusplus
}
#endif
diff --git a/lib/librte_mempool/rte_mempool_default.c
b/lib/librte_mempool/rte_mempool_default.c
new file mode 100644
index 0000000..2493dc1
--- /dev/null
+++ b/lib/librte_mempool/rte_mempool_default.c
@@ -0,0 +1,229 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <rte_mempool.h>
+#include <rte_malloc.h>
+#include <string.h>
+
+#include "rte_mempool_internal.h"
+
+/*
+ * Indirect jump table to support external memory pools
+ */
+struct rte_mempool_handler_list mempool_handler_list = {
+ .sl = RTE_SPINLOCK_INITIALIZER ,
+ .num_handlers = 0
+};
+
+/* TODO Convert to older mechanism of an array of stucts */
+int16_t
+add_handler(struct rte_mempool_handler *h)
+{
+ int16_t handler_idx;
+
+ /* */
+ rte_spinlock_lock(&mempool_handler_list.sl);
+
+ /* Check whether jump table has space */
+ if (mempool_handler_list.num_handlers >= RTE_MEMPOOL_MAX_HANDLER_IDX) {
+ rte_spinlock_unlock(&mempool_handler_list.sl);
+ RTE_LOG(ERR, MEMPOOL,
+ "Maximum number of mempool handlers
exceeded\n");
+ return -1;
+ }
+
+ if ((h->put == NULL) || (h->get == NULL) ||
+ (h->get_count == NULL)) {
+ rte_spinlock_unlock(&mempool_handler_list.sl);
+ RTE_LOG(ERR, MEMPOOL,
+ "Missing callback while registering
mempool handler\n");
+ return -1;
+ }
+
+ /* add new handler index */
+ handler_idx = mempool_handler_list.num_handlers++;
+
+ snprintf(mempool_handler_list.handler[handler_idx].name,
+ RTE_MEMPOOL_NAMESIZE, "%s", h->name);
+ mempool_handler_list.handler[handler_idx].alloc = h->alloc;
+ mempool_handler_list.handler[handler_idx].put = h->put;
+ mempool_handler_list.handler[handler_idx].get = h->get;
+ mempool_handler_list.handler[handler_idx].get_count = h->get_count;
+
+ rte_spinlock_unlock(&mempool_handler_list.sl);
+
+ return handler_idx;
+}
+
+/* TODO Convert to older mechanism of an array of stucts */
+int16_t
+rte_get_mempool_handler(const char *name)
+{
+ int16_t i;
+
+ for (i = 0; i < mempool_handler_list.num_handlers; i++) {
+ if (!strcmp(name, mempool_handler_list.handler[i].name))
+ return i;
+ }
+ return -1;
+}
+
+static int
+common_ring_mp_put(void *p, void * const *obj_table, unsigned n)
+{
+ return rte_ring_mp_enqueue_bulk((struct rte_ring *)p, obj_table, n);
+}
+
+static int
+common_ring_sp_put(void *p, void * const *obj_table, unsigned n)
+{
+ return rte_ring_sp_enqueue_bulk((struct rte_ring *)p, obj_table, n);
+}
+
+static int
+common_ring_mc_get(void *p, void **obj_table, unsigned n)
+{
+ return rte_ring_mc_dequeue_bulk((struct rte_ring *)p, obj_table, n);
+}
+
+static int
+common_ring_sc_get(void *p, void **obj_table, unsigned n)
+{
+ return rte_ring_sc_dequeue_bulk((struct rte_ring *)p, obj_table, n);
+}
+
+static unsigned
+common_ring_get_count(void *p)
+{
+ return rte_ring_count((struct rte_ring *)p);
+}
+
+
+static void *
+rte_mempool_common_ring_alloc(struct rte_mempool *mp,
+ const char *name, unsigned n, int socket_id, unsigned flags)
+{
+ struct rte_ring *r;
+ char rg_name[RTE_RING_NAMESIZE];
+ int rg_flags = 0;
+
+ if (flags & MEMPOOL_F_SP_PUT)
+ rg_flags |= RING_F_SP_ENQ;
+ if (flags & MEMPOOL_F_SC_GET)
+ rg_flags |= RING_F_SC_DEQ;
+
+ /* allocate the ring that will be used to store objects */
+ /* Ring functions will return appropriate errors if we are
+ * running as a secondary process etc., so no checks made
+ * in this function for that condition */
+ snprintf(rg_name, sizeof(rg_name), "%s-ring", name);
+ r = rte_ring_create(rg_name, rte_align32pow2(n+1), socket_id, rg_flags);
+ if (r == NULL)
+ return NULL;
+
+ mp->rt_pool = (void *)r;
+
+ return (void *) r;
+}
+
+void *
+rte_mempool_ext_alloc(struct rte_mempool *mp,
+ const char *name, unsigned n, int socket_id, unsigned flags)
+{
+ if (mempool_handler_list.handler[mp->handler_idx].alloc) {
+ return (mempool_handler_list.handler[mp->handler_idx].alloc)
+ (mp, name, n, socket_id, flags);
+ }
+ return NULL;
+}
+
+inline int __attribute__((always_inline))
+rte_mempool_ext_get_bulk(struct rte_mempool *mp, void **obj_table, unsigned n)
+{
+ return (mempool_handler_list.handler[mp->handler_idx].get)
+ (mp->rt_pool, obj_table, n);
+}
+
+inline int __attribute__((always_inline))
+rte_mempool_ext_put_bulk(struct rte_mempool *mp, void * const *obj_table,
+ unsigned n)
+{
+ return (mempool_handler_list.handler[mp->handler_idx].put)
+ (mp->rt_pool, obj_table, n);
+}
+
+int
+rte_mempool_ext_get_count(const struct rte_mempool *mp)
+{
+ return (mempool_handler_list.handler[mp->handler_idx].get_count)
+ (mp->rt_pool);
+}
+
+static struct rte_mempool_handler handler_mp_mc = {
+ .name = "ring_mp_mc",
+ .alloc = rte_mempool_common_ring_alloc,
+ .put = common_ring_mp_put,
+ .get = common_ring_mc_get,
+ .get_count = common_ring_get_count,
+ .free = NULL
+};
+static struct rte_mempool_handler handler_sp_sc = {
+ .name = "ring_sp_sc",
+ .alloc = rte_mempool_common_ring_alloc,
+ .put = common_ring_sp_put,
+ .get = common_ring_sc_get,
+ .get_count = common_ring_get_count,
+ .free = NULL
+};
+static struct rte_mempool_handler handler_mp_sc = {
+ .name = "ring_mp_sc",
+ .alloc = rte_mempool_common_ring_alloc,
+ .put = common_ring_mp_put,
+ .get = common_ring_sc_get,
+ .get_count = common_ring_get_count,
+ .free = NULL
+};
+static struct rte_mempool_handler handler_sp_mc = {
+ .name = "ring_sp_mc",
+ .alloc = rte_mempool_common_ring_alloc,
+ .put = common_ring_sp_put,
+ .get = common_ring_mc_get,
+ .get_count = common_ring_get_count,
+ .free = NULL
+};
+
+REGISTER_MEMPOOL_HANDLER(handler_mp_mc);
+REGISTER_MEMPOOL_HANDLER(handler_sp_sc);
+REGISTER_MEMPOOL_HANDLER(handler_mp_sc);
+REGISTER_MEMPOOL_HANDLER(handler_sp_mc);
diff --git a/lib/librte_mempool/rte_mempool_internal.h
b/lib/librte_mempool/rte_mempool_internal.h
new file mode 100644
index 0000000..92b7bde
--- /dev/null
+++ b/lib/librte_mempool/rte_mempool_internal.h
@@ -0,0 +1,74 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_MEMPOOL_INTERNAL_H_
+#define _RTE_MEMPOOL_INTERNAL_H_
+
+#include <rte_spinlock.h>
+#include <rte_mempool.h>
+
+#define RTE_MEMPOOL_MAX_HANDLER_IDX 16
+
+struct rte_mempool_handler {
+ char name[RTE_MEMPOOL_NAMESIZE]; /**< Name of mempool handler */
+
+ rte_mempool_alloc_t alloc;
+
+ rte_mempool_put_t put __rte_cache_aligned;
+
+ rte_mempool_get_t get __rte_cache_aligned;
+
+ rte_mempool_get_count get_count __rte_cache_aligned;
+
+ rte_mempool_free_t free __rte_cache_aligned;
+};
+
+struct rte_mempool_handler_list {
+ rte_spinlock_t sl; /**< Spinlock for add/delete. */
+
+ int32_t num_handlers; /**< Number of handlers that are valid. */
+
+ /* storage for all possible handlers */
+ struct rte_mempool_handler handler[RTE_MEMPOOL_MAX_HANDLER_IDX];
+};
+
+int16_t add_handler(struct rte_mempool_handler *h);
+
+#define REGISTER_MEMPOOL_HANDLER(h) \
+static int16_t __attribute__((used)) testfn_##h(void);\
+int16_t __attribute__((constructor, used)) testfn_##h(void)\
+{\
+ return add_handler(&h);\
+}
+
+#endif
--
1.9.3
