mlx4_core: Fix fallback from MSI-X to INTx
The test in mlx4_load_one() to remove MLX4_FLAG_MSI_X expects mlx4_NOP() to fail with -EBUSY. It is also necessary to avoid the reset since the device is not fully reinitialized before calling mlx4_start_hca() a second time. Note that this will also affect mlx4_test_interrupts(), the only other user of MLX4_CMD_NOP. Fixes: f5aef5aa ("net/mlx4_core: Activate reset flow upon fatal command cases") Signed-off-by: NBenjamin Poirier <bpoirier@suse.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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