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net/mlx4_core: Fix VF overwrite of module param which disables DMFS on new probed PFs

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In the VF driver, module parameter mlx4_log_num_mgm_entry_size was
mistakenly overwritten -- and in a manner which overrode the
device-managed flow steering option encoded in the parameter.

log_num_mgm_entry_size is a global module parameter which
affects all ConnectX-3 PFs installed on that host.
If a VF changes log_num_mgm_entry_size, this will affect all PFs
which are probed subsequent to the change (by disabling DMFS for
those PFs).

Fixes: 3c439b5586 ("mlx4_core: Allow choosing flow steering mode")
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Majd Dibbiny 2017-02-23 12:02:43 +02:00 committed by David S. Miller
parent 745d8ae462
commit 95f1ba9a24
1 changed files with 0 additions and 2 deletions
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2
drivers/net/ethernet/mellanox/mlx4/main.c
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@ -841,8 +841,6 @@ static int mlx4_slave_cap(struct mlx4_dev *dev)
return -EINVAL;
}
mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
dev->caps.hca_core_clock = hca_param.hca_core_clock;
memset(&dev_cap, 0, sizeof(dev_cap));