[dpdk-dev,10/16] mlx4: allow applications to use fork() safely
Commit Message
From: Olga Shern <olgas@mellanox.com>
Signed-off-by: Olga Shern <olgas@mellanox.com>
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---
drivers/net/mlx4/mlx4.c | 7 +++++++
1 file changed, 7 insertions(+)
@@ -4793,6 +4793,13 @@ rte_mlx4_pmd_init(const char *name, const char *args)
{
(void)name;
(void)args;
+ /*
+ * RDMAV_HUGEPAGES_SAFE tells ibv_fork_init() we intend to use
+ * huge pages. Calling ibv_fork_init() during init allows
+ * applications to use fork() safely.
+ */
+ setenv("RDMAV_HUGEPAGES_SAFE", "1", 1);
+ ibv_fork_init();
rte_eal_pci_register(&mlx4_driver.pci_drv);
return 0;
}