#include <rte_log.h>
#include <rte_memory.h>
#include <rte_memzone.h>
-#include <rte_tailq.h>
#include <rte_eal.h>
#include <rte_eal_memconfig.h>
#include <rte_per_lcore.h>
return NULL;
}
-/*
- * Return a pointer to a correctly filled memzone descriptor. If the
- * allocation cannot be done, return NULL.
- */
-const struct rte_memzone *
-rte_memzone_reserve(const char *name, size_t len, int socket_id,
- unsigned flags)
-{
- return rte_memzone_reserve_aligned(name,
- len, socket_id, flags, CACHE_LINE_SIZE);
-}
-
/*
* Helper function for memzone_reserve_aligned_thread_unsafe().
* Calculate address offset from the start of the segment.
addr_offset = start - ms->phys_addr;
}
- return (addr_offset);
+ return addr_offset;
}
static const struct rte_memzone *
}
/* if alignment is not a power of two */
- if (!rte_is_power_of_2(align)) {
+ if (align && !rte_is_power_of_2(align)) {
RTE_LOG(ERR, EAL, "%s(): Invalid alignment: %u\n", __func__,
align);
rte_errno = EINVAL;
}
/* alignment less than cache size is not allowed */
- if (align < CACHE_LINE_SIZE)
- align = CACHE_LINE_SIZE;
+ if (align < RTE_CACHE_LINE_SIZE)
+ align = RTE_CACHE_LINE_SIZE;
/* align length on cache boundary. Check for overflow before doing so */
- if (len > SIZE_MAX - CACHE_LINE_MASK) {
+ if (len > SIZE_MAX - RTE_CACHE_LINE_MASK) {
rte_errno = EINVAL; /* requested size too big */
return NULL;
}
- len += CACHE_LINE_MASK;
- len &= ~((size_t) CACHE_LINE_MASK);
+ len += RTE_CACHE_LINE_MASK;
+ len &= ~((size_t) RTE_CACHE_LINE_MASK);
/* save minimal requested length */
- requested_len = RTE_MAX((size_t)CACHE_LINE_SIZE, len);
+ requested_len = RTE_MAX((size_t)RTE_CACHE_LINE_SIZE, len);
/* check that boundary condition is valid */
if (bound != 0 &&
return mz;
}
-/*
- * Return a pointer to a correctly filled memzone descriptor (with a
- * specified alignment). If the allocation cannot be done, return NULL.
- */
-const struct rte_memzone *
-rte_memzone_reserve_aligned(const char *name, size_t len,
- int socket_id, unsigned flags, unsigned align)
+static const struct rte_memzone *
+rte_memzone_reserve_thread_safe(const char *name, size_t len,
+ int socket_id, unsigned flags, unsigned align,
+ unsigned bound)
{
struct rte_mem_config *mcfg;
const struct rte_memzone *mz = NULL;
rte_rwlock_write_lock(&mcfg->mlock);
mz = memzone_reserve_aligned_thread_unsafe(
- name, len, socket_id, flags, align, 0);
+ name, len, socket_id, flags, align, bound);
rte_rwlock_write_unlock(&mcfg->mlock);
/*
* Return a pointer to a correctly filled memzone descriptor (with a
- * specified alignment and boundary).
- * If the allocation cannot be done, return NULL.
+ * specified alignment and boundary). If the allocation cannot be done,
+ * return NULL.
*/
const struct rte_memzone *
-rte_memzone_reserve_bounded(const char *name, size_t len,
- int socket_id, unsigned flags, unsigned align, unsigned bound)
+rte_memzone_reserve_bounded(const char *name, size_t len, int socket_id,
+ unsigned flags, unsigned align, unsigned bound)
{
- struct rte_mem_config *mcfg;
- const struct rte_memzone *mz = NULL;
-
- /* both sizes cannot be explicitly called for */
- if (((flags & RTE_MEMZONE_1GB) && (flags & RTE_MEMZONE_2MB))
- || ((flags & RTE_MEMZONE_16MB) && (flags & RTE_MEMZONE_16GB))) {
- rte_errno = EINVAL;
- return NULL;
- }
-
- /* get pointer to global configuration */
- mcfg = rte_eal_get_configuration()->mem_config;
-
- rte_rwlock_write_lock(&mcfg->mlock);
-
- mz = memzone_reserve_aligned_thread_unsafe(
- name, len, socket_id, flags, align, bound);
-
- rte_rwlock_write_unlock(&mcfg->mlock);
+ return rte_memzone_reserve_thread_safe(name, len, socket_id, flags,
+ align, bound);
+}
- return mz;
+/*
+ * Return a pointer to a correctly filled memzone descriptor (with a
+ * specified alignment). If the allocation cannot be done, return NULL.
+ */
+const struct rte_memzone *
+rte_memzone_reserve_aligned(const char *name, size_t len, int socket_id,
+ unsigned flags, unsigned align)
+{
+ return rte_memzone_reserve_thread_safe(name, len, socket_id, flags,
+ align, 0);
}
+/*
+ * Return a pointer to a correctly filled memzone descriptor. If the
+ * allocation cannot be done, return NULL.
+ */
+const struct rte_memzone *
+rte_memzone_reserve(const char *name, size_t len, int socket_id,
+ unsigned flags)
+{
+ return rte_memzone_reserve_thread_safe(name, len, socket_id,
+ flags, RTE_CACHE_LINE_SIZE, 0);
+}
/*
* Lookup for the memzone identified by the given name
unsigned virt_align;
unsigned off;
- phys_align = memseg->phys_addr & CACHE_LINE_MASK;
- virt_align = (unsigned long)memseg->addr & CACHE_LINE_MASK;
+ phys_align = memseg->phys_addr & RTE_CACHE_LINE_MASK;
+ virt_align = (unsigned long)memseg->addr & RTE_CACHE_LINE_MASK;
/*
* sanity check: phys_addr and addr must have the same
return -1;
/* memseg is really too small, don't bother with it */
- if (memseg->len < (2 * CACHE_LINE_SIZE)) {
+ if (memseg->len < (2 * RTE_CACHE_LINE_SIZE)) {
memseg->len = 0;
return 0;
}
/* align start address */
- off = (CACHE_LINE_SIZE - phys_align) & CACHE_LINE_MASK;
+ off = (RTE_CACHE_LINE_SIZE - phys_align) & RTE_CACHE_LINE_MASK;
memseg->phys_addr += off;
memseg->addr = (char *)memseg->addr + off;
memseg->len -= off;
/* align end address */
- memseg->len &= ~((uint64_t)CACHE_LINE_MASK);
+ memseg->len &= ~((uint64_t)RTE_CACHE_LINE_MASK);
return 0;
}
git.droids-corp.org / dpdk.git / blobdiff