net/mlx5: Wait for FW readiness before initializing command interface

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[ Upstream commit 6c780a0267 ]

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: e3297246c2 ('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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Eli Cohen 2017-06-08 11:33:16 -05:00 • committed by Greg Kroah-Hartman

parent 176b9874a2

commit 25ff35074e

1 changed files with 12 additions and 2 deletions

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drivers/net/ethernet/mellanox/mlx5/core/main.c

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