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net/mlx4: use virt2memseg instead of iteration

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Reduce dependency on internal details of EAL memory subsystem, and
simplify code.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Tested-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Tested-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Tested-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
This commit is contained in:
Anatoly Burakov 2018-04-11 13:30:18 +01:00 committed by Thomas Monjalon
parent 29f3c9e55d
commit c2fe582322
2 changed files with 8 additions and 11 deletions
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1
drivers/net/mlx4/Makefile
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@ -37,6 +37,7 @@ CFLAGS += -D_BSD_SOURCE
CFLAGS += -D_DEFAULT_SOURCE
CFLAGS += -D_XOPEN_SOURCE=600
CFLAGS += $(WERROR_FLAGS)
CFLAGS += -DALLOW_EXPERIMENTAL_API
ifeq ($(CONFIG_RTE_LIBRTE_MLX4_DLOPEN_DEPS),y)
CFLAGS += -DMLX4_GLUE='"$(LIB_GLUE)"'
CFLAGS += -DMLX4_GLUE_VERSION='"$(LIB_GLUE_VERSION)"'

18
drivers/net/mlx4/mlx4_mr.c
View File

@ -126,10 +126,9 @@ mlx4_check_mempool(struct rte_mempool *mp, uintptr_t *start, uintptr_t *end)
struct mlx4_mr *
mlx4_mr_get(struct priv *priv, struct rte_mempool *mp)
{
const struct rte_memseg *ms = rte_eal_get_physmem_layout();
const struct rte_memseg *ms;
uintptr_t start;
uintptr_t end;
unsigned int i;
struct mlx4_mr *mr;
if (mlx4_check_mempool(mp, &start, &end) != 0) {
@ -142,16 +141,13 @@ mlx4_mr_get(struct priv *priv, struct rte_mempool *mp)
(void *)mp, (void *)start, (void *)end,
(size_t)(end - start));
/* Round start and end to page boundary if found in memory segments. */
for (i = 0; (i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL); ++i) {
uintptr_t addr = (uintptr_t)ms[i].addr;
size_t len = ms[i].len;
unsigned int align = ms[i].hugepage_sz;
ms = rte_mem_virt2memseg((void *)start);
if (ms != NULL)
start = RTE_ALIGN_FLOOR(start, ms->hugepage_sz);
ms = rte_mem_virt2memseg((void *)end);
if (ms != NULL)
end = RTE_ALIGN_CEIL(end, ms->hugepage_sz);
if ((start > addr) && (start < addr + len))
start = RTE_ALIGN_FLOOR(start, align);
if ((end > addr) && (end < addr + len))
end = RTE_ALIGN_CEIL(end, align);
}
DEBUG("mempool %p using start=%p end=%p size=%zu for MR",
(void *)mp, (void *)start, (void *)end,
(size_t)(end - start));