diff mbox

[dpdk-dev,10/16] mlx4: allow applications to use fork() safely

Message ID 1433546120-2254-11-git-send-email-adrien.mazarguil@6wind.com (mailing list archive)
State Superseded, archived
Headers

Commit Message

Adrien Mazarguil June 5, 2015, 11:15 p.m. UTC 
  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(+)
diff mbox

Patch

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index f7186fa..cc16e8c 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -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;
 }