net/mlx5: Wait for FW readiness before initializing command interface
authorEli Cohen <eli@mellanox.com>
Thu, 8 Jun 2017 16:33:16 +0000 (11:33 -0500)
committerSaeed Mahameed <saeedm@mellanox.com>
Thu, 15 Jun 2017 20:27:46 +0000 (23:27 +0300)
commit6c780a0267b8a1075f40b39851132eeaefefcff5
tree88faa0a4921d3c504f267ae29007e64336fc6923
parent3b1bbafbfd14474fee61487552c9916ec1b25c58
net/mlx5: Wait for FW readiness before initializing command interface

Before attempting to initialize the command interface we must wait till
the fw_initializing bit is clear.

If we fail to meet this condition the hardware will drop our
configuration, specifically the descriptors page address.  This scenario
can happen when the firmware is still executing an FLR flow and did not
finish yet so the driver needs to wait for that to finish.

Fixes: e3297246c2c8 ('net/mlx5_core: Wait for FW readiness on startup')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
drivers/net/ethernet/mellanox/mlx5/core/main.c