From ed15d7f8e064edf37f46f340e576ea85f9656dc1 Mon Sep 17 00:00:00 2001 From: Ivan Malov Date: Tue, 20 Oct 2020 10:13:39 +0100 Subject: [PATCH] common/sfc_efx/base: validate and compare outer match specs Let the client validate an outer match specification. Let the client comprare classes of two outer match specifications. Signed-off-by: Ivan Malov Signed-off-by: Andrew Rybchenko Reviewed-by: Andy Moreton --- drivers/common/sfc_efx/base/efx_impl.h | 3 + drivers/common/sfc_efx/base/efx_mae.c | 126 ++++++++++++++++++++++++- 2 files changed, 126 insertions(+), 3 deletions(-) diff --git a/drivers/common/sfc_efx/base/efx_impl.h b/drivers/common/sfc_efx/base/efx_impl.h index 607d3ded27..1005dd0aa8 100644 --- a/drivers/common/sfc_efx/base/efx_impl.h +++ b/drivers/common/sfc_efx/base/efx_impl.h @@ -800,6 +800,9 @@ typedef struct efx_mae_s { size_t em_action_rule_field_caps_size; uint32_t em_max_n_outer_prios; uint32_t em_encap_types_supported; + /** Outer rule match field capabilities. */ + efx_mae_field_cap_t *em_outer_rule_field_caps; + size_t em_outer_rule_field_caps_size; } efx_mae_t; #endif /* EFSYS_OPT_MAE */ diff --git a/drivers/common/sfc_efx/base/efx_mae.c b/drivers/common/sfc_efx/base/efx_mae.c index b75059efe3..fa74df7af0 100644 --- a/drivers/common/sfc_efx/base/efx_mae.c +++ b/drivers/common/sfc_efx/base/efx_mae.c @@ -74,6 +74,88 @@ fail1: return (rc); } +static __checkReturn efx_rc_t +efx_mae_get_outer_rule_caps( + __in efx_nic_t *enp, + __in unsigned int field_ncaps, + __out_ecount(field_ncaps) efx_mae_field_cap_t *field_caps) +{ + efx_mcdi_req_t req; + EFX_MCDI_DECLARE_BUF(payload, + MC_CMD_MAE_GET_OR_CAPS_IN_LEN, + MC_CMD_MAE_GET_OR_CAPS_OUT_LENMAX_MCDI2); + unsigned int mcdi_field_ncaps; + unsigned int i; + efx_rc_t rc; + + if (MC_CMD_MAE_GET_OR_CAPS_OUT_LEN(field_ncaps) > + MC_CMD_MAE_GET_OR_CAPS_OUT_LENMAX_MCDI2) { + rc = EINVAL; + goto fail1; + } + + req.emr_cmd = MC_CMD_MAE_GET_OR_CAPS; + req.emr_in_buf = payload; + req.emr_in_length = MC_CMD_MAE_GET_OR_CAPS_IN_LEN; + req.emr_out_buf = payload; + req.emr_out_length = MC_CMD_MAE_GET_OR_CAPS_OUT_LEN(field_ncaps); + + efx_mcdi_execute(enp, &req); + + if (req.emr_rc != 0) { + rc = req.emr_rc; + goto fail2; + } + + mcdi_field_ncaps = MCDI_OUT_DWORD(req, MAE_GET_OR_CAPS_OUT_COUNT); + + if (req.emr_out_length_used < + MC_CMD_MAE_GET_OR_CAPS_OUT_LEN(mcdi_field_ncaps)) { + rc = EMSGSIZE; + goto fail3; + } + + if (mcdi_field_ncaps > field_ncaps) { + rc = EMSGSIZE; + goto fail4; + } + + for (i = 0; i < mcdi_field_ncaps; ++i) { + uint32_t match_flag; + uint32_t mask_flag; + + field_caps[i].emfc_support = MCDI_OUT_INDEXED_DWORD_FIELD(req, + MAE_GET_OR_CAPS_OUT_FIELD_FLAGS, i, + MAE_FIELD_FLAGS_SUPPORT_STATUS); + + match_flag = MCDI_OUT_INDEXED_DWORD_FIELD(req, + MAE_GET_OR_CAPS_OUT_FIELD_FLAGS, i, + MAE_FIELD_FLAGS_MATCH_AFFECTS_CLASS); + + field_caps[i].emfc_match_affects_class = + (match_flag != 0) ? B_TRUE : B_FALSE; + + mask_flag = MCDI_OUT_INDEXED_DWORD_FIELD(req, + MAE_GET_OR_CAPS_OUT_FIELD_FLAGS, i, + MAE_FIELD_FLAGS_MASK_AFFECTS_CLASS); + + field_caps[i].emfc_mask_affects_class = + (mask_flag != 0) ? B_TRUE : B_FALSE; + } + + return (0); + +fail4: + EFSYS_PROBE(fail4); +fail3: + EFSYS_PROBE(fail3); +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + return (rc); +} + static __checkReturn efx_rc_t efx_mae_get_action_rule_caps( __in efx_nic_t *enp, @@ -161,6 +243,8 @@ efx_mae_init( __in efx_nic_t *enp) { const efx_nic_cfg_t *encp = efx_nic_cfg_get(enp); + efx_mae_field_cap_t *or_fcaps; + size_t or_fcaps_size; efx_mae_field_cap_t *ar_fcaps; size_t ar_fcaps_size; efx_mae_t *maep; @@ -183,11 +267,25 @@ efx_mae_init( if (rc != 0) goto fail3; + or_fcaps_size = maep->em_max_nfields * sizeof (*or_fcaps); + EFSYS_KMEM_ALLOC(enp->en_esip, or_fcaps_size, or_fcaps); + if (or_fcaps == NULL) { + rc = ENOMEM; + goto fail4; + } + + maep->em_outer_rule_field_caps_size = or_fcaps_size; + maep->em_outer_rule_field_caps = or_fcaps; + + rc = efx_mae_get_outer_rule_caps(enp, maep->em_max_nfields, or_fcaps); + if (rc != 0) + goto fail5; + ar_fcaps_size = maep->em_max_nfields * sizeof (*ar_fcaps); EFSYS_KMEM_ALLOC(enp->en_esip, ar_fcaps_size, ar_fcaps); if (ar_fcaps == NULL) { rc = ENOMEM; - goto fail4; + goto fail6; } maep->em_action_rule_field_caps_size = ar_fcaps_size; @@ -195,13 +293,18 @@ efx_mae_init( rc = efx_mae_get_action_rule_caps(enp, maep->em_max_nfields, ar_fcaps); if (rc != 0) - goto fail5; + goto fail7; return (0); -fail5: +fail7: EFSYS_PROBE(fail5); EFSYS_KMEM_FREE(enp->en_esip, ar_fcaps_size, ar_fcaps); +fail6: + EFSYS_PROBE(fail4); +fail5: + EFSYS_PROBE(fail5); + EFSYS_KMEM_FREE(enp->en_esip, or_fcaps_size, or_fcaps); fail4: EFSYS_PROBE(fail4); fail3: @@ -227,6 +330,8 @@ efx_mae_fini( EFSYS_KMEM_FREE(enp->en_esip, maep->em_action_rule_field_caps_size, maep->em_action_rule_field_caps); + EFSYS_KMEM_FREE(enp->en_esip, maep->em_outer_rule_field_caps_size, + maep->em_outer_rule_field_caps); EFSYS_KMEM_FREE(enp->en_esip, sizeof (*maep), maep); enp->en_maep = NULL; } @@ -711,6 +816,13 @@ efx_mae_match_spec_is_valid( const uint8_t *mvp; switch (spec->emms_type) { + case EFX_MAE_RULE_OUTER: + field_caps = maep->em_outer_rule_field_caps; + desc_setp = __efx_mae_outer_rule_mv_desc_set; + desc_set_nentries = + EFX_ARRAY_SIZE(__efx_mae_outer_rule_mv_desc_set); + mvp = spec->emms_mask_value_pairs.outer; + break; case EFX_MAE_RULE_ACTION: field_caps = maep->em_action_rule_field_caps; desc_setp = __efx_mae_action_rule_mv_desc_set; @@ -1190,6 +1302,14 @@ efx_mae_match_specs_class_cmp( efx_rc_t rc; switch (left->emms_type) { + case EFX_MAE_RULE_OUTER: + field_caps = maep->em_outer_rule_field_caps; + desc_setp = __efx_mae_outer_rule_mv_desc_set; + desc_set_nentries = + EFX_ARRAY_SIZE(__efx_mae_outer_rule_mv_desc_set); + mvpl = left->emms_mask_value_pairs.outer; + mvpr = right->emms_mask_value_pairs.outer; + break; case EFX_MAE_RULE_ACTION: field_caps = maep->em_action_rule_field_caps; desc_setp = __efx_mae_action_rule_mv_desc_set; -- 2.20.1