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net: mvpp2: cls: Use a bitfield to represent the flow_type

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As of today, the classification code is used only for RSS. We split the
incoming traffic into multiple flows, that correspond to the ethtool
flow_type parameter.

We don't want to use the ethtool flow definitions such as TCP_V4_FLOW,
for several reason :

 - We want to decorrelate the driver code from ethtool as much as
   possible, so that we can easily use other interfaces such as tc flower,

 - We want the flow_type to be a bitfield, so that we can match flows
   embedded into each other, such as TCP4 which is a subset of IP4.

This commit does the conversion to the newer type.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Maxime Chevallier 2019-04-30 15:14:27 +02:00 • committed by David S. Miller
parent 6f16a46522
commit 84e90b0b51
2 changed files with 109 additions and 69 deletions
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14
drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.h
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@ -107,6 +107,20 @@ struct mvpp2_cls_c2_entry {
u8 valid;
};
#define MVPP22_FLOW_ETHER_BIT BIT(0)
#define MVPP22_FLOW_IP4_BIT BIT(1)
#define MVPP22_FLOW_IP6_BIT BIT(2)
#define MVPP22_FLOW_TCP_BIT BIT(3)
#define MVPP22_FLOW_UDP_BIT BIT(4)
#define MVPP22_FLOW_TCP4 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT | MVPP22_FLOW_TCP_BIT)
#define MVPP22_FLOW_TCP6 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT | MVPP22_FLOW_TCP_BIT)
#define MVPP22_FLOW_UDP4 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT | MVPP22_FLOW_UDP_BIT)
#define MVPP22_FLOW_UDP6 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT | MVPP22_FLOW_UDP_BIT)
#define MVPP22_FLOW_IP4 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT)
#define MVPP22_FLOW_IP6 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT)
#define MVPP22_FLOW_ETHERNET (MVPP22_FLOW_ETHER_BIT)
/* Classifier C2 engine entries */
#define MVPP22_CLS_C2_N_ENTRIES 256