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net/sched: Add accessor functions to pedit keys for offloading drivers

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HW drivers will use the header-type and command fields from the extended
keys, and some fields (e.g mask, val, offset) from the legacy keys.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Or Gerlitz 2017-01-22 20:42:39 +02:00 committed by Saeed Mahameed
parent 2de24fedb9
commit ffe2e217b8
1 changed files with 45 additions and 0 deletions
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45
include/net/tc_act/tc_pedit.h
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@ -2,6 +2,7 @@
#define __NET_TC_PED_H
#include <net/act_api.h>
#include <linux/tc_act/tc_pedit.h>
struct tcf_pedit_key_ex {
enum pedit_header_type htype;
@ -17,4 +18,48 @@ struct tcf_pedit {
};
#define to_pedit(a) ((struct tcf_pedit *)a)
static inline bool is_tcf_pedit(const struct tc_action *a)
{
#ifdef CONFIG_NET_CLS_ACT
if (a->ops && a->ops->type == TCA_ACT_PEDIT)
return true;
#endif
return false;
}
static inline int tcf_pedit_nkeys(const struct tc_action *a)
{
return to_pedit(a)->tcfp_nkeys;
}
static inline u32 tcf_pedit_htype(const struct tc_action *a, int index)
{
if (to_pedit(a)->tcfp_keys_ex)
return to_pedit(a)->tcfp_keys_ex[index].htype;
return TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK;
}
static inline u32 tcf_pedit_cmd(const struct tc_action *a, int index)
{
if (to_pedit(a)->tcfp_keys_ex)
return to_pedit(a)->tcfp_keys_ex[index].cmd;
return __PEDIT_CMD_MAX;
}
static inline u32 tcf_pedit_mask(const struct tc_action *a, int index)
{
return to_pedit(a)->tcfp_keys[index].mask;
}
static inline u32 tcf_pedit_val(const struct tc_action *a, int index)
{
return to_pedit(a)->tcfp_keys[index].val;
}
static inline u32 tcf_pedit_offset(const struct tc_action *a, int index)
{
return to_pedit(a)->tcfp_keys[index].off;
}
#endif /* __NET_TC_PED_H */