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mlxsw: spectrum_acl: Add cleanup after C-TCAM update error condition 

When writing to C-TCAM, mlxsw driver uses cregion->ops->entry_insert().
In case of C-TCAM HW insertion error, the opposite action should take
place.
Add error handling case in which the C-TCAM region entry is removed, by
calling cregion->ops->entry_remove().

Fixes: a0a777b940 ("mlxsw: spectrum_acl: Start using A-TCAM")
Signed-off-by: Nir Dotan <nird@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nir Dotan 2019-01-08 16:48:03 +00:00 committed by David S. Miller
parent 11287b693d
commit ff0db43cd6
1 changed files with 9 additions and 1 deletions
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10
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_ctcam.c
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@ -72,7 +72,15 @@ mlxsw_sp_acl_ctcam_region_entry_insert(struct mlxsw_sp *mlxsw_sp,
act_set = mlxsw_afa_block_first_set(rulei->act_block);
mlxsw_reg_ptce2_flex_action_set_memcpy_to(ptce2_pl, act_set);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptce2), ptce2_pl);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptce2), ptce2_pl);
if (err)
goto err_ptce2_write;
return 0;
err_ptce2_write:
cregion->ops->entry_remove(cregion, centry);
return err;
}
static void