net/mlx5: E-Switch, Don't allow changing inline mode when flows are configured

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Changing the eswitch inline mode can potentially cause already configured
flows not to match the policy. E.g. set policy L4, add some L4 rules,
set policy to L2 --> bad! Hence we disallow it.

Keep track of how many offloaded rules are now set and refuse
inline mode changes if this isn't zero.

Fixes: bffaa91658 ("net/mlx5: E-Switch, Add control for inline mode")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Roi Dayan 2017-03-21 15:59:14 +02:00 • committed by David S. Miller

parent d85cdccbb3

commit 375f51e2b5

2 changed files with 9 additions and 0 deletions

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1

drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

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8

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

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