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common/sfc_efx/base: add match spec init/fini APIs

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An MAE rule is a function of match criteria and a priority. The said match
criteria have to be provided using "mask-value pairs" packing format which
on its own should not be exposed to client drivers. The latter have to use
a functional interface of sorts in order to generate a match specification.

Define an EFX match specification and implement initialise / finalise APIs.
The "mask-value pairs" buffer itself is not used in this particular patch,
so the corresponding struct member will be added in the follow-up patch.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
This commit is contained in:
Ivan Malov 2020-10-20 10:12:48 +01:00 committed by Ferruh Yigit
parent 01628fc5f6
commit b75eb50d04
4 changed files with 79 additions and 0 deletions
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22
drivers/common/sfc_efx/base/efx.h
View File

@ -4058,6 +4058,28 @@ efx_mae_get_limits(
__in efx_nic_t *enp,
__out efx_mae_limits_t *emlp);
typedef enum efx_mae_rule_type_e {
EFX_MAE_RULE_ACTION = 0,
EFX_MAE_RULE_NTYPES
} efx_mae_rule_type_t;
typedef struct efx_mae_match_spec_s efx_mae_match_spec_t;
LIBEFX_API
extern __checkReturn efx_rc_t
efx_mae_match_spec_init(
__in efx_nic_t *enp,
__in efx_mae_rule_type_t type,
__in uint32_t prio,
__out efx_mae_match_spec_t **specp);
LIBEFX_API
extern void
efx_mae_match_spec_fini(
__in efx_nic_t *enp,
__in efx_mae_match_spec_t *spec);
#endif /* EFSYS_OPT_MAE */
#ifdef __cplusplus

9
drivers/common/sfc_efx/base/efx_impl.h
View File

@ -1675,6 +1675,15 @@ efx_pci_xilinx_cap_tbl_find(
#endif /* EFSYS_OPT_PCI */
#if EFSYS_OPT_MAE
struct efx_mae_match_spec_s {
efx_mae_rule_type_t emms_type;
uint32_t emms_prio;
};
#endif /* EFSYS_OPT_MAE */
#ifdef __cplusplus
}
#endif

46
drivers/common/sfc_efx/base/efx_mae.c
View File

@ -126,4 +126,50 @@ fail1:
return (rc);
}
__checkReturn efx_rc_t
efx_mae_match_spec_init(
__in efx_nic_t *enp,
__in efx_mae_rule_type_t type,
__in uint32_t prio,
__out efx_mae_match_spec_t **specp)
{
efx_mae_match_spec_t *spec;
efx_rc_t rc;
switch (type) {
case EFX_MAE_RULE_ACTION:
break;
default:
rc = ENOTSUP;
goto fail1;
}
EFSYS_KMEM_ALLOC(enp->en_esip, sizeof (*spec), spec);
if (spec == NULL) {
rc = ENOMEM;
goto fail2;
}
spec->emms_type = type;
spec->emms_prio = prio;
*specp = spec;
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
void
efx_mae_match_spec_fini(
__in efx_nic_t *enp,
__in efx_mae_match_spec_t *spec)
{
EFSYS_KMEM_FREE(enp->en_esip, sizeof (*spec), spec);
}
#endif /* EFSYS_OPT_MAE */

2
drivers/common/sfc_efx/version.map
View File

@ -88,6 +88,8 @@ INTERNAL {
efx_mae_fini;
efx_mae_get_limits;
efx_mae_init;
efx_mae_match_spec_fini;
efx_mae_match_spec_init;
efx_mcdi_fini;
efx_mcdi_get_proxy_handle;