[dpdk-dev] [PATCH v5 43/70] net/mlx4: use virt2memseg instead of iteration

[Anatoly Burakov]

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

Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com>
Tested-by: Santosh Shukla <santosh.shu...@caviumnetworks.com>
Tested-by: Hemant Agrawal <hemant.agra...@nxp.com>
---

Notes:
    v5:
    - Remove unused variable

 drivers/net/mlx4/mlx4_mr.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/drivers/net/mlx4/mlx4_mr.c b/drivers/net/mlx4/mlx4_mr.c
index 9a1e4de..7ca1560 100644
--- a/drivers/net/mlx4/mlx4_mr.c
+++ b/drivers/net/mlx4/mlx4_mr.c
@@ -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));
-- 
2.7.4