diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c | 403 |
1 files changed, 395 insertions, 8 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c index b4feb0927687..14e3f0f89c78 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c @@ -26,6 +26,15 @@ enum ice_fdir_tunnel_type { ICE_FDIR_TUNNEL_TYPE_NONE = 0, ICE_FDIR_TUNNEL_TYPE_GTPU, ICE_FDIR_TUNNEL_TYPE_GTPU_EH, + ICE_FDIR_TUNNEL_TYPE_ECPRI, + ICE_FDIR_TUNNEL_TYPE_GTPU_INNER, + ICE_FDIR_TUNNEL_TYPE_GTPU_EH_INNER, + ICE_FDIR_TUNNEL_TYPE_GRE, + ICE_FDIR_TUNNEL_TYPE_GTPOGRE, + ICE_FDIR_TUNNEL_TYPE_GTPOGRE_INNER, + ICE_FDIR_TUNNEL_TYPE_GRE_INNER, + ICE_FDIR_TUNNEL_TYPE_L2TPV2, + ICE_FDIR_TUNNEL_TYPE_L2TPV2_INNER, }; struct virtchnl_fdir_fltr_conf { @@ -33,6 +42,11 @@ struct virtchnl_fdir_fltr_conf { enum ice_fdir_tunnel_type ttype; u64 inset_flag; u32 flow_id; + + struct ice_parser_profile *prof; + bool parser_ena; + u8 *pkt_buf; + u8 pkt_len; }; struct virtchnl_fdir_inset_map { @@ -787,6 +801,107 @@ err_exit: } /** + * ice_vc_fdir_is_raw_flow - check if FDIR flow is raw (binary) + * @proto: virtchnl protocol headers + * + * Check if the FDIR rule is raw flow (protocol agnostic flow) or not. Note + * that common FDIR rule must have non-zero proto->count. Thus, we choose the + * tunnel_level and count of proto as the indicators. If both tunnel_level and + * count of proto are zero, this FDIR rule will be regarded as raw flow. + * + * Returns: true if headers describe raw flow, false otherwise. + */ +static bool +ice_vc_fdir_is_raw_flow(struct virtchnl_proto_hdrs *proto) +{ + return (proto->tunnel_level == 0 && proto->count == 0); +} + +/** + * ice_vc_fdir_parse_raw - parse a virtchnl raw FDIR rule + * @vf: pointer to the VF info + * @proto: virtchnl protocol headers + * @conf: FDIR configuration for each filter + * + * Parse the virtual channel filter's raw flow and store it in @conf + * + * Return: 0 on success or negative errno on failure. + */ +static int +ice_vc_fdir_parse_raw(struct ice_vf *vf, + struct virtchnl_proto_hdrs *proto, + struct virtchnl_fdir_fltr_conf *conf) +{ + u8 *pkt_buf, *msk_buf __free(kfree); + struct ice_parser_result rslt; + struct ice_pf *pf = vf->pf; + struct ice_parser *psr; + int status = -ENOMEM; + struct ice_hw *hw; + u16 udp_port = 0; + + pkt_buf = kzalloc(proto->raw.pkt_len, GFP_KERNEL); + msk_buf = kzalloc(proto->raw.pkt_len, GFP_KERNEL); + if (!pkt_buf || !msk_buf) + goto err_mem_alloc; + + memcpy(pkt_buf, proto->raw.spec, proto->raw.pkt_len); + memcpy(msk_buf, proto->raw.mask, proto->raw.pkt_len); + + hw = &pf->hw; + + /* Get raw profile info via Parser Lib */ + psr = ice_parser_create(hw); + if (IS_ERR(psr)) { + status = PTR_ERR(psr); + goto err_mem_alloc; + } + + ice_parser_dvm_set(psr, ice_is_dvm_ena(hw)); + + if (ice_get_open_tunnel_port(hw, &udp_port, TNL_VXLAN)) + ice_parser_vxlan_tunnel_set(psr, udp_port, true); + + status = ice_parser_run(psr, pkt_buf, proto->raw.pkt_len, &rslt); + if (status) + goto err_parser_destroy; + + if (hw->debug_mask & ICE_DBG_PARSER) + ice_parser_result_dump(hw, &rslt); + + conf->prof = kzalloc(sizeof(*conf->prof), GFP_KERNEL); + if (!conf->prof) { + status = -ENOMEM; + goto err_parser_destroy; + } + + status = ice_parser_profile_init(&rslt, pkt_buf, msk_buf, + proto->raw.pkt_len, ICE_BLK_FD, + conf->prof); + if (status) + goto err_parser_profile_init; + + if (hw->debug_mask & ICE_DBG_PARSER) + ice_parser_profile_dump(hw, conf->prof); + + /* Store raw flow info into @conf */ + conf->pkt_len = proto->raw.pkt_len; + conf->pkt_buf = pkt_buf; + conf->parser_ena = true; + + ice_parser_destroy(psr); + return 0; + +err_parser_profile_init: + kfree(conf->prof); +err_parser_destroy: + ice_parser_destroy(psr); +err_mem_alloc: + kfree(pkt_buf); + return status; +} + +/** * ice_vc_fdir_parse_pattern * @vf: pointer to the VF info * @fltr: virtual channel add cmd buffer @@ -813,6 +928,10 @@ ice_vc_fdir_parse_pattern(struct ice_vf *vf, struct virtchnl_fdir_add *fltr, return -EINVAL; } + /* For raw FDIR filters created by the parser */ + if (ice_vc_fdir_is_raw_flow(proto)) + return ice_vc_fdir_parse_raw(vf, proto, conf); + for (i = 0; i < proto->count; i++) { struct virtchnl_proto_hdr *hdr = &proto->proto_hdr[i]; struct ip_esp_hdr *esph; @@ -1101,8 +1220,10 @@ ice_vc_validate_fdir_fltr(struct ice_vf *vf, struct virtchnl_fdir_add *fltr, struct virtchnl_proto_hdrs *proto = &fltr->rule_cfg.proto_hdrs; int ret; - if (!ice_vc_validate_pattern(vf, proto)) - return -EINVAL; + /* For raw FDIR filters created by the parser */ + if (!ice_vc_fdir_is_raw_flow(proto)) + if (!ice_vc_validate_pattern(vf, proto)) + return -EINVAL; ret = ice_vc_fdir_parse_pattern(vf, fltr, conf); if (ret) @@ -1295,11 +1416,15 @@ static int ice_vc_fdir_write_fltr(struct ice_vf *vf, return -ENOMEM; ice_fdir_get_prgm_desc(hw, input, &desc, add); - ret = ice_fdir_get_gen_prgm_pkt(hw, input, pkt, false, is_tun); - if (ret) { - dev_dbg(dev, "Gen training pkt for VF %d ptype %d failed\n", - vf->vf_id, input->flow_type); - goto err_free_pkt; + if (conf->parser_ena) { + memcpy(pkt, conf->pkt_buf, conf->pkt_len); + } else { + ret = ice_fdir_get_gen_prgm_pkt(hw, input, pkt, false, is_tun); + if (ret) { + dev_dbg(dev, "Gen training pkt for VF %d ptype %d failed\n", + vf->vf_id, input->flow_type); + goto err_free_pkt; + } } ret = ice_prgm_fdir_fltr(ctrl_vsi, &desc, pkt); @@ -1521,6 +1646,16 @@ err_exit: return ret; } +static int ice_fdir_is_tunnel(enum ice_fdir_tunnel_type ttype) +{ + return (ttype == ICE_FDIR_TUNNEL_TYPE_GRE_INNER || + ttype == ICE_FDIR_TUNNEL_TYPE_GTPU_INNER || + ttype == ICE_FDIR_TUNNEL_TYPE_GTPU_EH_INNER || + ttype == ICE_FDIR_TUNNEL_TYPE_GTPOGRE_INNER || + ttype == ICE_FDIR_TUNNEL_TYPE_ECPRI || + ttype == ICE_FDIR_TUNNEL_TYPE_L2TPV2_INNER); +} + /** * ice_vc_add_fdir_fltr_post * @vf: pointer to the VF structure @@ -1782,6 +1917,158 @@ static void ice_vc_fdir_clear_irq_ctx(struct ice_vf *vf) } /** + * ice_vc_parser_fv_check_diff - check two parsed FDIR profile fv context + * @fv_a: struct of parsed FDIR profile field vector + * @fv_b: struct of parsed FDIR profile field vector + * + * Check if the two parsed FDIR profile field vector context are different, + * including proto_id, offset and mask. + * + * Return: true on different, false on otherwise. + */ +static bool ice_vc_parser_fv_check_diff(struct ice_parser_fv *fv_a, + struct ice_parser_fv *fv_b) +{ + return (fv_a->proto_id != fv_b->proto_id || + fv_a->offset != fv_b->offset || + fv_a->msk != fv_b->msk); +} + +/** + * ice_vc_parser_fv_save - save parsed FDIR profile fv context + * @fv: struct of parsed FDIR profile field vector + * @fv_src: parsed FDIR profile field vector context to save + * + * Save the parsed FDIR profile field vector context, including proto_id, + * offset and mask. + * + * Return: Void. + */ +static void ice_vc_parser_fv_save(struct ice_parser_fv *fv, + struct ice_parser_fv *fv_src) +{ + fv->proto_id = fv_src->proto_id; + fv->offset = fv_src->offset; + fv->msk = fv_src->msk; + fv->spec = 0; +} + +/** + * ice_vc_add_fdir_raw - add a raw FDIR filter for VF + * @vf: pointer to the VF info + * @conf: FDIR configuration for each filter + * @v_ret: the final VIRTCHNL code + * @stat: pointer to the VIRTCHNL_OP_ADD_FDIR_FILTER + * @len: length of the stat + * + * Return: 0 on success or negative errno on failure. + */ +static int +ice_vc_add_fdir_raw(struct ice_vf *vf, + struct virtchnl_fdir_fltr_conf *conf, + enum virtchnl_status_code *v_ret, + struct virtchnl_fdir_add *stat, int len) +{ + struct ice_vsi *vf_vsi, *ctrl_vsi; + struct ice_fdir_prof_info *pi; + struct ice_pf *pf = vf->pf; + int ret, ptg, id, i; + struct device *dev; + struct ice_hw *hw; + bool fv_found; + + dev = ice_pf_to_dev(pf); + hw = &pf->hw; + *v_ret = VIRTCHNL_STATUS_ERR_PARAM; + stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE; + + id = find_first_bit(conf->prof->ptypes, ICE_FLOW_PTYPE_MAX); + ptg = hw->blk[ICE_BLK_FD].xlt1.t[id]; + + vf_vsi = ice_get_vf_vsi(vf); + if (!vf_vsi) { + dev_err(dev, "Can not get FDIR vf_vsi for VF %d\n", vf->vf_id); + return -ENODEV; + } + + ctrl_vsi = pf->vsi[vf->ctrl_vsi_idx]; + if (!ctrl_vsi) { + dev_err(dev, "Can not get FDIR ctrl_vsi for VF %d\n", + vf->vf_id); + return -ENODEV; + } + + fv_found = false; + + /* Check if profile info already exists, then update the counter */ + pi = &vf->fdir_prof_info[ptg]; + if (pi->fdir_active_cnt != 0) { + for (i = 0; i < ICE_MAX_FV_WORDS; i++) + if (ice_vc_parser_fv_check_diff(&pi->prof.fv[i], + &conf->prof->fv[i])) + break; + if (i == ICE_MAX_FV_WORDS) { + fv_found = true; + pi->fdir_active_cnt++; + } + } + + /* HW profile setting is only required for the first time */ + if (!fv_found) { + ret = ice_flow_set_parser_prof(hw, vf_vsi->idx, + ctrl_vsi->idx, conf->prof, + ICE_BLK_FD); + + if (ret) { + *v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY; + dev_dbg(dev, "VF %d: insert hw prof failed\n", + vf->vf_id); + return ret; + } + } + + ret = ice_vc_fdir_insert_entry(vf, conf, &conf->flow_id); + if (ret) { + *v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY; + dev_dbg(dev, "VF %d: insert FDIR list failed\n", + vf->vf_id); + return ret; + } + + ret = ice_vc_fdir_set_irq_ctx(vf, conf, + VIRTCHNL_OP_ADD_FDIR_FILTER); + if (ret) { + dev_dbg(dev, "VF %d: set FDIR context failed\n", + vf->vf_id); + goto err_rem_entry; + } + + ret = ice_vc_fdir_write_fltr(vf, conf, true, false); + if (ret) { + dev_err(dev, "VF %d: adding FDIR raw flow rule failed, ret:%d\n", + vf->vf_id, ret); + goto err_clr_irq; + } + + /* Save parsed profile fv info of the FDIR rule for the first time */ + if (!fv_found) { + for (i = 0; i < conf->prof->fv_num; i++) + ice_vc_parser_fv_save(&pi->prof.fv[i], + &conf->prof->fv[i]); + pi->prof.fv_num = conf->prof->fv_num; + pi->fdir_active_cnt = 1; + } + + return 0; + +err_clr_irq: + ice_vc_fdir_clear_irq_ctx(vf); +err_rem_entry: + ice_vc_fdir_remove_entry(vf, conf, conf->flow_id); + return ret; +} + +/** * ice_vc_add_fdir_fltr - add a FDIR filter for VF by the msg buffer * @vf: pointer to the VF info * @msg: pointer to the msg buffer @@ -1846,7 +2133,7 @@ int ice_vc_add_fdir_fltr(struct ice_vf *vf, u8 *msg) len = sizeof(*stat); ret = ice_vc_validate_fdir_fltr(vf, fltr, conf); if (ret) { - v_ret = VIRTCHNL_STATUS_SUCCESS; + v_ret = VIRTCHNL_STATUS_ERR_PARAM; stat->status = VIRTCHNL_FDIR_FAILURE_RULE_INVALID; dev_dbg(dev, "Invalid FDIR filter from VF %d\n", vf->vf_id); goto err_free_conf; @@ -1861,6 +2148,15 @@ int ice_vc_add_fdir_fltr(struct ice_vf *vf, u8 *msg) goto exit; } + /* For raw FDIR filters created by the parser */ + if (conf->parser_ena) { + ret = ice_vc_add_fdir_raw(vf, conf, &v_ret, stat, len); + if (ret) + goto err_free_conf; + goto exit; + } + + is_tun = ice_fdir_is_tunnel(conf->ttype); ret = ice_vc_fdir_config_input_set(vf, fltr, conf, is_tun); if (ret) { v_ret = VIRTCHNL_STATUS_SUCCESS; @@ -1922,6 +2218,78 @@ err_exit: } /** + * ice_vc_del_fdir_raw - delete a raw FDIR filter for VF + * @vf: pointer to the VF info + * @conf: FDIR configuration for each filter + * @v_ret: the final VIRTCHNL code + * @stat: pointer to the VIRTCHNL_OP_DEL_FDIR_FILTER + * @len: length of the stat + * + * Return: 0 on success or negative errno on failure. + */ +static int +ice_vc_del_fdir_raw(struct ice_vf *vf, + struct virtchnl_fdir_fltr_conf *conf, + enum virtchnl_status_code *v_ret, + struct virtchnl_fdir_del *stat, int len) +{ + struct ice_vsi *vf_vsi, *ctrl_vsi; + enum ice_block blk = ICE_BLK_FD; + struct ice_fdir_prof_info *pi; + struct ice_pf *pf = vf->pf; + struct device *dev; + struct ice_hw *hw; + unsigned long id; + u16 vsi_num; + int ptg; + int ret; + + dev = ice_pf_to_dev(pf); + hw = &pf->hw; + *v_ret = VIRTCHNL_STATUS_ERR_PARAM; + stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE; + + id = find_first_bit(conf->prof->ptypes, ICE_FLOW_PTYPE_MAX); + ptg = hw->blk[ICE_BLK_FD].xlt1.t[id]; + + ret = ice_vc_fdir_write_fltr(vf, conf, false, false); + if (ret) { + dev_err(dev, "VF %u: deleting FDIR raw flow rule failed: %d\n", + vf->vf_id, ret); + return ret; + } + + vf_vsi = ice_get_vf_vsi(vf); + if (!vf_vsi) { + dev_err(dev, "Can not get FDIR vf_vsi for VF %u\n", vf->vf_id); + return -ENODEV; + } + + ctrl_vsi = pf->vsi[vf->ctrl_vsi_idx]; + if (!ctrl_vsi) { + dev_err(dev, "Can not get FDIR ctrl_vsi for VF %u\n", + vf->vf_id); + return -ENODEV; + } + + pi = &vf->fdir_prof_info[ptg]; + if (pi->fdir_active_cnt != 0) { + pi->fdir_active_cnt--; + /* Remove the profile id flow if no active FDIR rule left */ + if (!pi->fdir_active_cnt) { + vsi_num = ice_get_hw_vsi_num(hw, ctrl_vsi->idx); + ice_rem_prof_id_flow(hw, blk, vsi_num, id); + + vsi_num = ice_get_hw_vsi_num(hw, vf_vsi->idx); + ice_rem_prof_id_flow(hw, blk, vsi_num, id); + } + } + + conf->parser_ena = false; + return 0; +} + +/** * ice_vc_del_fdir_fltr - delete a FDIR filter for VF by the msg buffer * @vf: pointer to the VF info * @msg: pointer to the msg buffer @@ -1933,7 +2301,10 @@ int ice_vc_del_fdir_fltr(struct ice_vf *vf, u8 *msg) struct virtchnl_fdir_del *fltr = (struct virtchnl_fdir_del *)msg; struct virtchnl_fdir_del *stat = NULL; struct virtchnl_fdir_fltr_conf *conf; + struct ice_vf_fdir *fdir = &vf->fdir; enum virtchnl_status_code v_ret; + struct ice_fdir_fltr *input; + enum ice_fltr_ptype flow; struct device *dev; struct ice_pf *pf; int is_tun = 0; @@ -1983,6 +2354,15 @@ int ice_vc_del_fdir_fltr(struct ice_vf *vf, u8 *msg) goto err_exit; } + /* For raw FDIR filters created by the parser */ + if (conf->parser_ena) { + ret = ice_vc_del_fdir_raw(vf, conf, &v_ret, stat, len); + if (ret) + goto err_del_tmr; + goto exit; + } + + is_tun = ice_fdir_is_tunnel(conf->ttype); ret = ice_vc_fdir_write_fltr(vf, conf, false, is_tun); if (ret) { v_ret = VIRTCHNL_STATUS_SUCCESS; @@ -1992,6 +2372,13 @@ int ice_vc_del_fdir_fltr(struct ice_vf *vf, u8 *msg) goto err_del_tmr; } + /* Remove unused profiles to avoid unexpected behaviors */ + input = &conf->input; + flow = input->flow_type; + if (fdir->fdir_fltr_cnt[flow][is_tun] == 1) + ice_vc_fdir_rem_prof(vf, flow, is_tun); + +exit: kfree(stat); return ret; |