On Wed, Feb 03, 2016 at 01:29:59AM -0800, John Fastabend wrote:
> This adds initial support for offloading the u32 tc classifier. This
> initial implementation only implements a few base matches and actions
> to illustrate the use of the infrastructure patches.
>
> However it is an interesting subset because it handles the u32 next
> hdr logic to correctly map tcp packets from ip headers using the ihl
> and protocol fields. After this is accepted we can extend the match
> and action fields easily by updating the model header file.
>
> Also only the drop action is supported initially.
>
> Here is a short test script,
>
> #tc qdisc add dev eth4 ingress
> #tc filter add dev eth4 parent ffff: protocol ip \
> u32 ht 800: order 1 \
> match ip dst 15.0.0.1/32 match ip src 15.0.0.2/32 action drop
>
> <-- hardware has dst/src ip match rule installed -->
>
> #tc filter del dev eth4 parent ffff: prio 49152
> #tc filter add dev eth4 parent ffff: protocol ip prio 99 \
> handle 1: u32 divisor 1
> #tc filter add dev eth4 protocol ip parent ffff: prio 99 \
> u32 ht 800: order 1 link 1: \
> offset at 0 mask 0f00 shift 6 plus 0 eat match ip protocol 6 ff
> #tc filter add dev eth4 parent ffff: protocol ip \
> u32 ht 1: order 3 match tcp src 23 ffff action drop
>
> <-- hardware has tcp src port rule installed -->
>
> #tc qdisc del dev eth4 parent ffff:
>
> <-- hardware cleaned up -->
>
> Signed-off-by: John Fastabend <john.r.fastab...@intel.com>
> ---
> drivers/net/ethernet/intel/ixgbe/ixgbe.h | 3
> drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 6 -
> drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 196
> ++++++++++++++++++++++
> 3 files changed, 198 insertions(+), 7 deletions(-)
>
What are you doing w.r.t priorities? Are the filters processed by the
order of the priorities?
[...]
>
> -static int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
> - struct ixgbe_fdir_filter *input,
> - u16 sw_idx)
> +int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
> + struct ixgbe_fdir_filter *input,
> + u16 sw_idx)
> {
> struct ixgbe_hw *hw = &adapter->hw;
> struct hlist_node *node2;
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> index 03e236c..a1a91bf 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
> @@ -51,6 +51,7 @@
> #include <linux/prefetch.h>
> #include <scsi/fc/fc_fcoe.h>
> #include <net/vxlan.h>
> +#include <net/pkt_cls.h>
>
> #ifdef CONFIG_OF
> #include <linux/of_net.h>
> @@ -8200,10 +8201,197 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc)
> return 0;
> }
>
> +#include <net/tc_act/tc_gact.h>
> +#include "ixgbe_model.h"
Did you leave those #include's in the middle of the file on purpose?
[...]
