// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2019, Intel Corporation. */ #include "ice_common.h" #include "ice_sched.h" #include "ice_dcb.h" /** * ice_aq_get_lldp_mib * @hw: pointer to the HW struct * @bridge_type: type of bridge requested * @mib_type: Local, Remote or both Local and Remote MIBs * @buf: pointer to the caller-supplied buffer to store the MIB block * @buf_size: size of the buffer (in bytes) * @local_len: length of the returned Local LLDP MIB * @remote_len: length of the returned Remote LLDP MIB * @cd: pointer to command details structure or NULL * * Requests the complete LLDP MIB (entire packet). (0x0A00) */ static int ice_aq_get_lldp_mib(struct ice_hw *hw, u8 bridge_type, u8 mib_type, void *buf, u16 buf_size, u16 *local_len, u16 *remote_len, struct ice_sq_cd *cd) { struct ice_aqc_lldp_get_mib *cmd; struct ice_aq_desc desc; int status; cmd = &desc.params.lldp_get_mib; if (buf_size == 0 || !buf) return -EINVAL; ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_get_mib); cmd->type = mib_type & ICE_AQ_LLDP_MIB_TYPE_M; cmd->type |= (bridge_type << ICE_AQ_LLDP_BRID_TYPE_S) & ICE_AQ_LLDP_BRID_TYPE_M; desc.datalen = cpu_to_le16(buf_size); status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd); if (!status) { if (local_len) *local_len = le16_to_cpu(cmd->local_len); if (remote_len) *remote_len = le16_to_cpu(cmd->remote_len); } return status; } /** * ice_aq_cfg_lldp_mib_change * @hw: pointer to the HW struct * @ena_update: Enable or Disable event posting * @cd: pointer to command details structure or NULL * * Enable or Disable posting of an event on ARQ when LLDP MIB * associated with the interface changes (0x0A01) */ static int ice_aq_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_update, struct ice_sq_cd *cd) { struct ice_aqc_lldp_set_mib_change *cmd; struct ice_aq_desc desc; cmd = &desc.params.lldp_set_event; ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_set_mib_change); if (!ena_update) cmd->command |= ICE_AQ_LLDP_MIB_UPDATE_DIS; else cmd->command |= FIELD_PREP(ICE_AQ_LLDP_MIB_PENDING_M, ICE_AQ_LLDP_MIB_PENDING_ENABLE); return ice_aq_send_cmd(hw, &desc, NULL, 0, cd); } /** * ice_aq_stop_lldp * @hw: pointer to the HW struct * @shutdown_lldp_agent: True if LLDP Agent needs to be Shutdown * False if LLDP Agent needs to be Stopped * @persist: True if Stop/Shutdown of LLDP Agent needs to be persistent across * reboots * @cd: pointer to command details structure or NULL * * Stop or Shutdown the embedded LLDP Agent (0x0A05) */ int ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist, struct ice_sq_cd *cd) { struct ice_aqc_lldp_stop *cmd; struct ice_aq_desc desc; cmd = &desc.params.lldp_stop; ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_stop); if (shutdown_lldp_agent) cmd->command |= ICE_AQ_LLDP_AGENT_SHUTDOWN; if (persist) cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_DIS; return ice_aq_send_cmd(hw, &desc, NULL, 0, cd); } /** * ice_aq_start_lldp * @hw: pointer to the HW struct * @persist: True if Start of LLDP Agent needs to be persistent across reboots * @cd: pointer to command details structure or NULL * * Start the embedded LLDP Agent on all ports. (0x0A06) */ int ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd) { struct ice_aqc_lldp_start *cmd; struct ice_aq_desc desc; cmd = &desc.params.lldp_start; ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_start); cmd->command = ICE_AQ_LLDP_AGENT_START; if (persist) cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_ENA; return ice_aq_send_cmd(hw, &desc, NULL, 0, cd); } /** * ice_get_dcbx_status * @hw: pointer to the HW struct * * Get the DCBX status from the Firmware */ static u8 ice_get_dcbx_status(struct ice_hw *hw) { u32 reg; reg = rd32(hw, PRTDCB_GENS); return (u8)((reg & PRTDCB_GENS_DCBX_STATUS_M) >> PRTDCB_GENS_DCBX_STATUS_S); } /** * ice_parse_ieee_ets_common_tlv * @buf: Data buffer to be parsed for ETS CFG/REC data * @ets_cfg: Container to store parsed data * * Parses the common data of IEEE 802.1Qaz ETS CFG/REC TLV */ static void ice_parse_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg) { u8 offset = 0; int i; /* Priority Assignment Table (4 octets) * Octets:| 1 | 2 | 3 | 4 | * ----------------------------------------- * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7| * ----------------------------------------- * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0| * ----------------------------------------- */ for (i = 0; i < 4; i++) { ets_cfg->prio_table[i * 2] = ((buf[offset] & ICE_IEEE_ETS_PRIO_1_M) >> ICE_IEEE_ETS_PRIO_1_S); ets_cfg->prio_table[i * 2 + 1] = ((buf[offset] & ICE_IEEE_ETS_PRIO_0_M) >> ICE_IEEE_ETS_PRIO_0_S); offset++; } /* TC Bandwidth Table (8 octets) * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | * --------------------------------- * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| * --------------------------------- * * TSA Assignment Table (8 octets) * Octets:| 9 | 10| 11| 12| 13| 14| 15| 16| * --------------------------------- * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| * --------------------------------- */ ice_for_each_traffic_class(i) { ets_cfg->tcbwtable[i] = buf[offset]; ets_cfg->tsatable[i] = buf[ICE_MAX_TRAFFIC_CLASS + offset++]; } } /** * ice_parse_ieee_etscfg_tlv * @tlv: IEEE 802.1Qaz ETS CFG TLV * @dcbcfg: Local store to update ETS CFG data * * Parses IEEE 802.1Qaz ETS CFG TLV */ static void ice_parse_ieee_etscfg_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { struct ice_dcb_ets_cfg *etscfg; u8 *buf = tlv->tlvinfo; /* First Octet post subtype * -------------------------- * |will-|CBS | Re- | Max | * |ing | |served| TCs | * -------------------------- * |1bit | 1bit|3 bits|3bits| */ etscfg = &dcbcfg->etscfg; etscfg->willing = ((buf[0] & ICE_IEEE_ETS_WILLING_M) >> ICE_IEEE_ETS_WILLING_S); etscfg->cbs = ((buf[0] & ICE_IEEE_ETS_CBS_M) >> ICE_IEEE_ETS_CBS_S); etscfg->maxtcs = ((buf[0] & ICE_IEEE_ETS_MAXTC_M) >> ICE_IEEE_ETS_MAXTC_S); /* Begin parsing at Priority Assignment Table (offset 1 in buf) */ ice_parse_ieee_ets_common_tlv(&buf[1], etscfg); } /** * ice_parse_ieee_etsrec_tlv * @tlv: IEEE 802.1Qaz ETS REC TLV * @dcbcfg: Local store to update ETS REC data * * Parses IEEE 802.1Qaz ETS REC TLV */ static void ice_parse_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u8 *buf = tlv->tlvinfo; /* Begin parsing at Priority Assignment Table (offset 1 in buf) */ ice_parse_ieee_ets_common_tlv(&buf[1], &dcbcfg->etsrec); } /** * ice_parse_ieee_pfccfg_tlv * @tlv: IEEE 802.1Qaz PFC CFG TLV * @dcbcfg: Local store to update PFC CFG data * * Parses IEEE 802.1Qaz PFC CFG TLV */ static void ice_parse_ieee_pfccfg_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u8 *buf = tlv->tlvinfo; /* ---------------------------------------- * |will-|MBC | Re- | PFC | PFC Enable | * |ing | |served| cap | | * ----------------------------------------- * |1bit | 1bit|2 bits|4bits| 1 octet | */ dcbcfg->pfc.willing = ((buf[0] & ICE_IEEE_PFC_WILLING_M) >> ICE_IEEE_PFC_WILLING_S); dcbcfg->pfc.mbc = ((buf[0] & ICE_IEEE_PFC_MBC_M) >> ICE_IEEE_PFC_MBC_S); dcbcfg->pfc.pfccap = ((buf[0] & ICE_IEEE_PFC_CAP_M) >> ICE_IEEE_PFC_CAP_S); dcbcfg->pfc.pfcena = buf[1]; } /** * ice_parse_ieee_app_tlv * @tlv: IEEE 802.1Qaz APP TLV * @dcbcfg: Local store to update APP PRIO data * * Parses IEEE 802.1Qaz APP PRIO TLV */ static void ice_parse_ieee_app_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u16 offset = 0; u16 typelen; int i = 0; u16 len; u8 *buf; typelen = ntohs(tlv->typelen); len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); buf = tlv->tlvinfo; /* Removing sizeof(ouisubtype) and reserved byte from len. * Remaining len div 3 is number of APP TLVs. */ len -= (sizeof(tlv->ouisubtype) + 1); /* Move offset to App Priority Table */ offset++; /* Application Priority Table (3 octets) * Octets:| 1 | 2 | 3 | * ----------------------------------------- * |Priority|Rsrvd| Sel | Protocol ID | * ----------------------------------------- * Bits:|23 21|20 19|18 16|15 0| * ----------------------------------------- */ while (offset < len) { dcbcfg->app[i].priority = ((buf[offset] & ICE_IEEE_APP_PRIO_M) >> ICE_IEEE_APP_PRIO_S); dcbcfg->app[i].selector = ((buf[offset] & ICE_IEEE_APP_SEL_M) >> ICE_IEEE_APP_SEL_S); dcbcfg->app[i].prot_id = (buf[offset + 1] << 0x8) | buf[offset + 2]; /* Move to next app */ offset += 3; i++; if (i >= ICE_DCBX_MAX_APPS) break; } dcbcfg->numapps = i; } /** * ice_parse_ieee_tlv * @tlv: IEEE 802.1Qaz TLV * @dcbcfg: Local store to update ETS REC data * * Get the TLV subtype and send it to parsing function * based on the subtype value */ static void ice_parse_ieee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u32 ouisubtype; u8 subtype; ouisubtype = ntohl(tlv->ouisubtype); subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >> ICE_LLDP_TLV_SUBTYPE_S); switch (subtype) { case ICE_IEEE_SUBTYPE_ETS_CFG: ice_parse_ieee_etscfg_tlv(tlv, dcbcfg); break; case ICE_IEEE_SUBTYPE_ETS_REC: ice_parse_ieee_etsrec_tlv(tlv, dcbcfg); break; case ICE_IEEE_SUBTYPE_PFC_CFG: ice_parse_ieee_pfccfg_tlv(tlv, dcbcfg); break; case ICE_IEEE_SUBTYPE_APP_PRI: ice_parse_ieee_app_tlv(tlv, dcbcfg); break; default: break; } } /** * ice_parse_cee_pgcfg_tlv * @tlv: CEE DCBX PG CFG TLV * @dcbcfg: Local store to update ETS CFG data * * Parses CEE DCBX PG CFG TLV */ static void ice_parse_cee_pgcfg_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { struct ice_dcb_ets_cfg *etscfg; u8 *buf = tlv->tlvinfo; u16 offset = 0; int i; etscfg = &dcbcfg->etscfg; if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M) etscfg->willing = 1; etscfg->cbs = 0; /* Priority Group Table (4 octets) * Octets:| 1 | 2 | 3 | 4 | * ----------------------------------------- * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7| * ----------------------------------------- * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0| * ----------------------------------------- */ for (i = 0; i < 4; i++) { etscfg->prio_table[i * 2] = ((buf[offset] & ICE_CEE_PGID_PRIO_1_M) >> ICE_CEE_PGID_PRIO_1_S); etscfg->prio_table[i * 2 + 1] = ((buf[offset] & ICE_CEE_PGID_PRIO_0_M) >> ICE_CEE_PGID_PRIO_0_S); offset++; } /* PG Percentage Table (8 octets) * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | * --------------------------------- * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7| * --------------------------------- */ ice_for_each_traffic_class(i) { etscfg->tcbwtable[i] = buf[offset++]; if (etscfg->prio_table[i] == ICE_CEE_PGID_STRICT) dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT; else dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS; } /* Number of TCs supported (1 octet) */ etscfg->maxtcs = buf[offset]; } /** * ice_parse_cee_pfccfg_tlv * @tlv: CEE DCBX PFC CFG TLV * @dcbcfg: Local store to update PFC CFG data * * Parses CEE DCBX PFC CFG TLV */ static void ice_parse_cee_pfccfg_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u8 *buf = tlv->tlvinfo; if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M) dcbcfg->pfc.willing = 1; /* ------------------------ * | PFC Enable | PFC TCs | * ------------------------ * | 1 octet | 1 octet | */ dcbcfg->pfc.pfcena = buf[0]; dcbcfg->pfc.pfccap = buf[1]; } /** * ice_parse_cee_app_tlv * @tlv: CEE DCBX APP TLV * @dcbcfg: Local store to update APP PRIO data * * Parses CEE DCBX APP PRIO TLV */ static void ice_parse_cee_app_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u16 len, typelen, offset = 0; struct ice_cee_app_prio *app; u8 i; typelen = ntohs(tlv->hdr.typelen); len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); dcbcfg->numapps = len / sizeof(*app); if (!dcbcfg->numapps) return; if (dcbcfg->numapps > ICE_DCBX_MAX_APPS) dcbcfg->numapps = ICE_DCBX_MAX_APPS; for (i = 0; i < dcbcfg->numapps; i++) { u8 up, selector; app = (struct ice_cee_app_prio *)(tlv->tlvinfo + offset); for (up = 0; up < ICE_MAX_USER_PRIORITY; up++) if (app->prio_map & BIT(up)) break; dcbcfg->app[i].priority = up; /* Get Selector from lower 2 bits, and convert to IEEE */ selector = (app->upper_oui_sel & ICE_CEE_APP_SELECTOR_M); switch (selector) { case ICE_CEE_APP_SEL_ETHTYPE: dcbcfg->app[i].selector = ICE_APP_SEL_ETHTYPE; break; case ICE_CEE_APP_SEL_TCPIP: dcbcfg->app[i].selector = ICE_APP_SEL_TCPIP; break; default: /* Keep selector as it is for unknown types */ dcbcfg->app[i].selector = selector; } dcbcfg->app[i].prot_id = ntohs(app->protocol); /* Move to next app */ offset += sizeof(*app); } } /** * ice_parse_cee_tlv * @tlv: CEE DCBX TLV * @dcbcfg: Local store to update DCBX config data * * Get the TLV subtype and send it to parsing function * based on the subtype value */ static void ice_parse_cee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { struct ice_cee_feat_tlv *sub_tlv; u8 subtype, feat_tlv_count = 0; u16 len, tlvlen, typelen; u32 ouisubtype; ouisubtype = ntohl(tlv->ouisubtype); subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >> ICE_LLDP_TLV_SUBTYPE_S); /* Return if not CEE DCBX */ if (subtype != ICE_CEE_DCBX_TYPE) return; typelen = ntohs(tlv->typelen); tlvlen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); len = sizeof(tlv->typelen) + sizeof(ouisubtype) + sizeof(struct ice_cee_ctrl_tlv); /* Return if no CEE DCBX Feature TLVs */ if (tlvlen <= len) return; sub_tlv = (struct ice_cee_feat_tlv *)((char *)tlv + len); while (feat_tlv_count < ICE_CEE_MAX_FEAT_TYPE) { u16 sublen; typelen = ntohs(sub_tlv->hdr.typelen); sublen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); subtype = (u8)((typelen & ICE_LLDP_TLV_TYPE_M) >> ICE_LLDP_TLV_TYPE_S); switch (subtype) { case ICE_CEE_SUBTYPE_PG_CFG: ice_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg); break; case ICE_CEE_SUBTYPE_PFC_CFG: ice_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg); break; case ICE_CEE_SUBTYPE_APP_PRI: ice_parse_cee_app_tlv(sub_tlv, dcbcfg); break; default: return; /* Invalid Sub-type return */ } feat_tlv_count++; /* Move to next sub TLV */ sub_tlv = (struct ice_cee_feat_tlv *) ((char *)sub_tlv + sizeof(sub_tlv->hdr.typelen) + sublen); } } /** * ice_parse_org_tlv * @tlv: Organization specific TLV * @dcbcfg: Local store to update ETS REC data * * Currently IEEE 802.1Qaz and CEE DCBX TLV are supported, others * will be returned */ static void ice_parse_org_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u32 ouisubtype; u32 oui; ouisubtype = ntohl(tlv->ouisubtype); oui = ((ouisubtype & ICE_LLDP_TLV_OUI_M) >> ICE_LLDP_TLV_OUI_S); switch (oui) { case ICE_IEEE_8021QAZ_OUI: ice_parse_ieee_tlv(tlv, dcbcfg); break; case ICE_CEE_DCBX_OUI: ice_parse_cee_tlv(tlv, dcbcfg); break; default: break; /* Other OUIs not supported */ } } /** * ice_lldp_to_dcb_cfg * @lldpmib: LLDPDU to be parsed * @dcbcfg: store for LLDPDU data * * Parse DCB configuration from the LLDPDU */ static int ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg) { struct ice_lldp_org_tlv *tlv; u16 offset = 0; int ret = 0; u16 typelen; u16 type; u16 len; if (!lldpmib || !dcbcfg) return -EINVAL; /* set to the start of LLDPDU */ lldpmib += ETH_HLEN; tlv = (struct ice_lldp_org_tlv *)lldpmib; while (1) { typelen = ntohs(tlv->typelen); type = ((typelen & ICE_LLDP_TLV_TYPE_M) >> ICE_LLDP_TLV_TYPE_S); len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); offset += sizeof(typelen) + len; /* END TLV or beyond LLDPDU size */ if (type == ICE_TLV_TYPE_END || offset > ICE_LLDPDU_SIZE) break; switch (type) { case ICE_TLV_TYPE_ORG: ice_parse_org_tlv(tlv, dcbcfg); break; default: break; } /* Move to next TLV */ tlv = (struct ice_lldp_org_tlv *) ((char *)tlv + sizeof(tlv->typelen) + len); } return ret; } /** * ice_aq_get_dcb_cfg * @hw: pointer to the HW struct * @mib_type: MIB type for the query * @bridgetype: bridge type for the query (remote) * @dcbcfg: store for LLDPDU data * * Query DCB configuration from the firmware */ int ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype, struct ice_dcbx_cfg *dcbcfg) { u8 *lldpmib; int ret; /* Allocate the LLDPDU */ lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL); if (!lldpmib) return -ENOMEM; ret = ice_aq_get_lldp_mib(hw, bridgetype, mib_type, (void *)lldpmib, ICE_LLDPDU_SIZE, NULL, NULL, NULL); if (!ret) /* Parse LLDP MIB to get DCB configuration */ ret = ice_lldp_to_dcb_cfg(lldpmib, dcbcfg); devm_kfree(ice_hw_to_dev(hw), lldpmib); return ret; } /** * ice_aq_start_stop_dcbx - Start/Stop DCBX service in FW * @hw: pointer to the HW struct * @start_dcbx_agent: True if DCBX Agent needs to be started * False if DCBX Agent needs to be stopped * @dcbx_agent_status: FW indicates back the DCBX agent status * True if DCBX Agent is active * False if DCBX Agent is stopped * @cd: pointer to command details structure or NULL * * Start/Stop the embedded dcbx Agent. In case that this wrapper function * returns 0, caller will need to check if FW returns back the same * value as stated in dcbx_agent_status, and react accordingly. (0x0A09) */ int ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent, bool *dcbx_agent_status, struct ice_sq_cd *cd) { struct ice_aqc_lldp_stop_start_specific_agent *cmd; struct ice_aq_desc desc; u16 opcode; int status; cmd = &desc.params.lldp_agent_ctrl; opcode = ice_aqc_opc_lldp_stop_start_specific_agent; ice_fill_dflt_direct_cmd_desc(&desc, opcode); if (start_dcbx_agent) cmd->command = ICE_AQC_START_STOP_AGENT_START_DCBX; status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd); *dcbx_agent_status = false; if (!status && cmd->command == ICE_AQC_START_STOP_AGENT_START_DCBX) *dcbx_agent_status = true; return status; } /** * ice_aq_get_cee_dcb_cfg * @hw: pointer to the HW struct * @buff: response buffer that stores CEE operational configuration * @cd: pointer to command details structure or NULL * * Get CEE DCBX mode operational configuration from firmware (0x0A07) */ static int ice_aq_get_cee_dcb_cfg(struct ice_hw *hw, struct ice_aqc_get_cee_dcb_cfg_resp *buff, struct ice_sq_cd *cd) { struct ice_aq_desc desc; ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_cee_dcb_cfg); return ice_aq_send_cmd(hw, &desc, (void *)buff, sizeof(*buff), cd); } /** * ice_aq_set_pfc_mode - Set PFC mode * @hw: pointer to the HW struct * @pfc_mode: value of PFC mode to set * @cd: pointer to command details structure or NULL * * This AQ call configures the PFC mode to DSCP-based PFC mode or * VLAN-based PFC (0x0303) */ int ice_aq_set_pfc_mode(struct ice_hw *hw, u8 pfc_mode, struct ice_sq_cd *cd) { struct ice_aqc_set_query_pfc_mode *cmd; struct ice_aq_desc desc; int status; if (pfc_mode > ICE_AQC_PFC_DSCP_BASED_PFC) return -EINVAL; cmd = &desc.params.set_query_pfc_mode; ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_pfc_mode); cmd->pfc_mode = pfc_mode; status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd); if (status) return status; /* FW will write the PFC mode set back into cmd->pfc_mode, but if DCB is * disabled, FW will write back 0 to cmd->pfc_mode. After the AQ has * been executed, check if cmd->pfc_mode is what was requested. If not, * return an error. */ if (cmd->pfc_mode != pfc_mode) return -EOPNOTSUPP; return 0; } /** * ice_cee_to_dcb_cfg * @cee_cfg: pointer to CEE configuration struct * @pi: port information structure * * Convert CEE configuration from firmware to DCB configuration */ static void ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg, struct ice_port_info *pi) { u32 status, tlv_status = le32_to_cpu(cee_cfg->tlv_status); u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift, j; u8 i, err, sync, oper, app_index, ice_app_sel_type; u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio); u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift; struct ice_dcbx_cfg *cmp_dcbcfg, *dcbcfg; u16 ice_app_prot_id_type; dcbcfg = &pi->qos_cfg.local_dcbx_cfg; dcbcfg->dcbx_mode = ICE_DCBX_MODE_CEE; dcbcfg->tlv_status = tlv_status; /* CEE PG data */ dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc; /* Note that the FW creates the oper_prio_tc nibbles reversed * from those in the CEE Priority Group sub-TLV. */ for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) { dcbcfg->etscfg.prio_table[i * 2] = ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_0_M) >> ICE_CEE_PGID_PRIO_0_S); dcbcfg->etscfg.prio_table[i * 2 + 1] = ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_1_M) >> ICE_CEE_PGID_PRIO_1_S); } ice_for_each_traffic_class(i) { dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i]; if (dcbcfg->etscfg.prio_table[i] == ICE_CEE_PGID_STRICT) { /* Map it to next empty TC */ dcbcfg->etscfg.prio_table[i] = cee_cfg->oper_num_tc - 1; dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT; } else { dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS; } } /* CEE PFC data */ dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en; dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS; /* CEE APP TLV data */ if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING) cmp_dcbcfg = &pi->qos_cfg.desired_dcbx_cfg; else cmp_dcbcfg = &pi->qos_cfg.remote_dcbx_cfg; app_index = 0; for (i = 0; i < 3; i++) { if (i == 0) { /* FCoE APP */ ice_aqc_cee_status_mask = ICE_AQC_CEE_FCOE_STATUS_M; ice_aqc_cee_status_shift = ICE_AQC_CEE_FCOE_STATUS_S; ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FCOE_M; ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FCOE_S; ice_app_sel_type = ICE_APP_SEL_ETHTYPE; ice_app_prot_id_type = ETH_P_FCOE; } else if (i == 1) { /* iSCSI APP */ ice_aqc_cee_status_mask = ICE_AQC_CEE_ISCSI_STATUS_M; ice_aqc_cee_status_shift = ICE_AQC_CEE_ISCSI_STATUS_S; ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_ISCSI_M; ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S; ice_app_sel_type = ICE_APP_SEL_TCPIP; ice_app_prot_id_type = ISCSI_LISTEN_PORT; for (j = 0; j < cmp_dcbcfg->numapps; j++) { u16 prot_id = cmp_dcbcfg->app[j].prot_id; u8 sel = cmp_dcbcfg->app[j].selector; if (sel == ICE_APP_SEL_TCPIP && (prot_id == ISCSI_LISTEN_PORT || prot_id == ICE_APP_PROT_ID_ISCSI_860)) { ice_app_prot_id_type = prot_id; break; } } } else { /* FIP APP */ ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M; ice_aqc_cee_status_shift = ICE_AQC_CEE_FIP_STATUS_S; ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FIP_M; ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FIP_S; ice_app_sel_type = ICE_APP_SEL_ETHTYPE; ice_app_prot_id_type = ETH_P_FIP; } status = (tlv_status & ice_aqc_cee_status_mask) >> ice_aqc_cee_status_shift; err = (status & ICE_TLV_STATUS_ERR) ? 1 : 0; sync = (status & ICE_TLV_STATUS_SYNC) ? 1 : 0; oper = (status & ICE_TLV_STATUS_OPER) ? 1 : 0; /* Add FCoE/iSCSI/FIP APP if Error is False and * Oper/Sync is True */ if (!err && sync && oper) { dcbcfg->app[app_index].priority = (app_prio & ice_aqc_cee_app_mask) >> ice_aqc_cee_app_shift; dcbcfg->app[app_index].selector = ice_app_sel_type; dcbcfg->app[app_index].prot_id = ice_app_prot_id_type; app_index++; } } dcbcfg->numapps = app_index; } /** * ice_get_ieee_or_cee_dcb_cfg * @pi: port information structure * @dcbx_mode: mode of DCBX (IEEE or CEE) * * Get IEEE or CEE mode DCB configuration from the Firmware */ static int ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode) { struct ice_dcbx_cfg *dcbx_cfg = NULL; int ret; if (!pi) return -EINVAL; if (dcbx_mode == ICE_DCBX_MODE_IEEE) dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; else if (dcbx_mode == ICE_DCBX_MODE_CEE) dcbx_cfg = &pi->qos_cfg.desired_dcbx_cfg; /* Get Local DCB Config in case of ICE_DCBX_MODE_IEEE * or get CEE DCB Desired Config in case of ICE_DCBX_MODE_CEE */ ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_LOCAL, ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg); if (ret) goto out; /* Get Remote DCB Config */ dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg; ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE, ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg); /* Don't treat ENOENT as an error for Remote MIBs */ if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) ret = 0; out: return ret; } /** * ice_get_dcb_cfg * @pi: port information structure * * Get DCB configuration from the Firmware */ int ice_get_dcb_cfg(struct ice_port_info *pi) { struct ice_aqc_get_cee_dcb_cfg_resp cee_cfg; struct ice_dcbx_cfg *dcbx_cfg; int ret; if (!pi) return -EINVAL; ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL); if (!ret) { /* CEE mode */ ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE); ice_cee_to_dcb_cfg(&cee_cfg, pi); } else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) { /* CEE mode not enabled try querying IEEE data */ dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE; ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_IEEE); } return ret; } /** * ice_get_dcb_cfg_from_mib_change * @pi: port information structure * @event: pointer to the admin queue receive event * * Set DCB configuration from received MIB Change event */ void ice_get_dcb_cfg_from_mib_change(struct ice_port_info *pi, struct ice_rq_event_info *event) { struct ice_dcbx_cfg *dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; struct ice_aqc_lldp_get_mib *mib; u8 change_type, dcbx_mode; mib = (struct ice_aqc_lldp_get_mib *)&event->desc.params.raw; change_type = FIELD_GET(ICE_AQ_LLDP_MIB_TYPE_M, mib->type); if (change_type == ICE_AQ_LLDP_MIB_REMOTE) dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg; dcbx_mode = FIELD_GET(ICE_AQ_LLDP_DCBX_M, mib->type); switch (dcbx_mode) { case ICE_AQ_LLDP_DCBX_IEEE: dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE; ice_lldp_to_dcb_cfg(event->msg_buf, dcbx_cfg); break; case ICE_AQ_LLDP_DCBX_CEE: pi->qos_cfg.desired_dcbx_cfg = pi->qos_cfg.local_dcbx_cfg; ice_cee_to_dcb_cfg((struct ice_aqc_get_cee_dcb_cfg_resp *) event->msg_buf, pi); break; } } /** * ice_init_dcb * @hw: pointer to the HW struct * @enable_mib_change: enable MIB change event * * Update DCB configuration from the Firmware */ int ice_init_dcb(struct ice_hw *hw, bool enable_mib_change) { struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg; int ret = 0; if (!hw->func_caps.common_cap.dcb) return -EOPNOTSUPP; qos_cfg->is_sw_lldp = true; /* Get DCBX status */ qos_cfg->dcbx_status = ice_get_dcbx_status(hw); if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DONE || qos_cfg->dcbx_status == ICE_DCBX_STATUS_IN_PROGRESS || qos_cfg->dcbx_status == ICE_DCBX_STATUS_NOT_STARTED) { /* Get current DCBX configuration */ ret = ice_get_dcb_cfg(hw->port_info); if (ret) return ret; qos_cfg->is_sw_lldp = false; } else if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) { return -EBUSY; } /* Configure the LLDP MIB change event */ if (enable_mib_change) { ret = ice_aq_cfg_lldp_mib_change(hw, true, NULL); if (ret) qos_cfg->is_sw_lldp = true; } return ret; } /** * ice_cfg_lldp_mib_change * @hw: pointer to the HW struct * @ena_mib: enable/disable MIB change event * * Configure (disable/enable) MIB */ int ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib) { struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg; int ret; if (!hw->func_caps.common_cap.dcb) return -EOPNOTSUPP; /* Get DCBX status */ qos_cfg->dcbx_status = ice_get_dcbx_status(hw); if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) return -EBUSY; ret = ice_aq_cfg_lldp_mib_change(hw, ena_mib, NULL); if (!ret) qos_cfg->is_sw_lldp = !ena_mib; return ret; } /** * ice_add_ieee_ets_common_tlv * @buf: Data buffer to be populated with ice_dcb_ets_cfg data * @ets_cfg: Container for ice_dcb_ets_cfg data * * Populate the TLV buffer with ice_dcb_ets_cfg data */ static void ice_add_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg) { u8 priority0, priority1; u8 offset = 0; int i; /* Priority Assignment Table (4 octets) * Octets:| 1 | 2 | 3 | 4 | * ----------------------------------------- * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7| * ----------------------------------------- * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0| * ----------------------------------------- */ for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) { priority0 = ets_cfg->prio_table[i * 2] & 0xF; priority1 = ets_cfg->prio_table[i * 2 + 1] & 0xF; buf[offset] = (priority0 << ICE_IEEE_ETS_PRIO_1_S) | priority1; offset++; } /* TC Bandwidth Table (8 octets) * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | * --------------------------------- * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| * --------------------------------- * * TSA Assignment Table (8 octets) * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | * --------------------------------- * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| * --------------------------------- */ ice_for_each_traffic_class(i) { buf[offset] = ets_cfg->tcbwtable[i]; buf[ICE_MAX_TRAFFIC_CLASS + offset] = ets_cfg->tsatable[i]; offset++; } } /** * ice_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format * @tlv: Fill the ETS config data in IEEE format * @dcbcfg: Local store which holds the DCB Config * * Prepare IEEE 802.1Qaz ETS CFG TLV */ static void ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { struct ice_dcb_ets_cfg *etscfg; u8 *buf = tlv->tlvinfo; u8 maxtcwilling = 0; u32 ouisubtype; u16 typelen; typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | ICE_IEEE_ETS_TLV_LEN); tlv->typelen = htons(typelen); ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | ICE_IEEE_SUBTYPE_ETS_CFG); tlv->ouisubtype = htonl(ouisubtype); /* First Octet post subtype * -------------------------- * |will-|CBS | Re- | Max | * |ing | |served| TCs | * -------------------------- * |1bit | 1bit|3 bits|3bits| */ etscfg = &dcbcfg->etscfg; if (etscfg->willing) maxtcwilling = BIT(ICE_IEEE_ETS_WILLING_S); maxtcwilling |= etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M; buf[0] = maxtcwilling; /* Begin adding at Priority Assignment Table (offset 1 in buf) */ ice_add_ieee_ets_common_tlv(&buf[1], etscfg); } /** * ice_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format * @tlv: Fill ETS Recommended TLV in IEEE format * @dcbcfg: Local store which holds the DCB Config * * Prepare IEEE 802.1Qaz ETS REC TLV */ static void ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { struct ice_dcb_ets_cfg *etsrec; u8 *buf = tlv->tlvinfo; u32 ouisubtype; u16 typelen; typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | ICE_IEEE_ETS_TLV_LEN); tlv->typelen = htons(typelen); ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | ICE_IEEE_SUBTYPE_ETS_REC); tlv->ouisubtype = htonl(ouisubtype); etsrec = &dcbcfg->etsrec; /* First Octet is reserved */ /* Begin adding at Priority Assignment Table (offset 1 in buf) */ ice_add_ieee_ets_common_tlv(&buf[1], etsrec); } /** * ice_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format * @tlv: Fill PFC TLV in IEEE format * @dcbcfg: Local store which holds the PFC CFG data * * Prepare IEEE 802.1Qaz PFC CFG TLV */ static void ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u8 *buf = tlv->tlvinfo; u32 ouisubtype; u16 typelen; typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | ICE_IEEE_PFC_TLV_LEN); tlv->typelen = htons(typelen); ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | ICE_IEEE_SUBTYPE_PFC_CFG); tlv->ouisubtype = htonl(ouisubtype); /* ---------------------------------------- * |will-|MBC | Re- | PFC | PFC Enable | * |ing | |served| cap | | * ----------------------------------------- * |1bit | 1bit|2 bits|4bits| 1 octet | */ if (dcbcfg->pfc.willing) buf[0] = BIT(ICE_IEEE_PFC_WILLING_S); if (dcbcfg->pfc.mbc) buf[0] |= BIT(ICE_IEEE_PFC_MBC_S); buf[0] |= dcbcfg->pfc.pfccap & 0xF; buf[1] = dcbcfg->pfc.pfcena; } /** * ice_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format * @tlv: Fill APP TLV in IEEE format * @dcbcfg: Local store which holds the APP CFG data * * Prepare IEEE 802.1Qaz APP CFG TLV */ static void ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u16 typelen, len, offset = 0; u8 priority, selector, i = 0; u8 *buf = tlv->tlvinfo; u32 ouisubtype; /* No APP TLVs then just return */ if (dcbcfg->numapps == 0) return; ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | ICE_IEEE_SUBTYPE_APP_PRI); tlv->ouisubtype = htonl(ouisubtype); /* Move offset to App Priority Table */ offset++; /* Application Priority Table (3 octets) * Octets:| 1 | 2 | 3 | * ----------------------------------------- * |Priority|Rsrvd| Sel | Protocol ID | * ----------------------------------------- * Bits:|23 21|20 19|18 16|15 0| * ----------------------------------------- */ while (i < dcbcfg->numapps) { priority = dcbcfg->app[i].priority & 0x7; selector = dcbcfg->app[i].selector & 0x7; buf[offset] = (priority << ICE_IEEE_APP_PRIO_S) | selector; buf[offset + 1] = (dcbcfg->app[i].prot_id >> 0x8) & 0xFF; buf[offset + 2] = dcbcfg->app[i].prot_id & 0xFF; /* Move to next app */ offset += 3; i++; if (i >= ICE_DCBX_MAX_APPS) break; } /* len includes size of ouisubtype + 1 reserved + 3*numapps */ len = sizeof(tlv->ouisubtype) + 1 + (i * 3); typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | (len & 0x1FF)); tlv->typelen = htons(typelen); } /** * ice_add_dscp_up_tlv - Prepare DSCP to UP TLV * @tlv: location to build the TLV data * @dcbcfg: location of data to convert to TLV */ static void ice_add_dscp_up_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u8 *buf = tlv->tlvinfo; u32 ouisubtype; u16 typelen; int i; typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | ICE_DSCP_UP_TLV_LEN); tlv->typelen = htons(typelen); ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | ICE_DSCP_SUBTYPE_DSCP2UP); tlv->ouisubtype = htonl(ouisubtype); /* bytes 0 - 63 - IPv4 DSCP2UP LUT */ for (i = 0; i < ICE_DSCP_NUM_VAL; i++) { /* IPv4 mapping */ buf[i] = dcbcfg->dscp_map[i]; /* IPv6 mapping */ buf[i + ICE_DSCP_IPV6_OFFSET] = dcbcfg->dscp_map[i]; } /* byte 64 - IPv4 untagged traffic */ buf[i] = 0; /* byte 144 - IPv6 untagged traffic */ buf[i + ICE_DSCP_IPV6_OFFSET] = 0; } #define ICE_BYTES_PER_TC 8 /** * ice_add_dscp_enf_tlv - Prepare DSCP Enforcement TLV * @tlv: location to build the TLV data */ static void ice_add_dscp_enf_tlv(struct ice_lldp_org_tlv *tlv) { u8 *buf = tlv->tlvinfo; u32 ouisubtype; u16 typelen; typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | ICE_DSCP_ENF_TLV_LEN); tlv->typelen = htons(typelen); ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | ICE_DSCP_SUBTYPE_ENFORCE); tlv->ouisubtype = htonl(ouisubtype); /* Allow all DSCP values to be valid for all TC's (IPv4 and IPv6) */ memset(buf, 0, 2 * (ICE_MAX_TRAFFIC_CLASS * ICE_BYTES_PER_TC)); } /** * ice_add_dscp_tc_bw_tlv - Prepare DSCP BW for TC TLV * @tlv: location to build the TLV data * @dcbcfg: location of the data to convert to TLV */ static void ice_add_dscp_tc_bw_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { struct ice_dcb_ets_cfg *etscfg; u8 *buf = tlv->tlvinfo; u32 ouisubtype; u8 offset = 0; u16 typelen; int i; typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | ICE_DSCP_TC_BW_TLV_LEN); tlv->typelen = htons(typelen); ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | ICE_DSCP_SUBTYPE_TCBW); tlv->ouisubtype = htonl(ouisubtype); /* First Octect after subtype * ---------------------------- * | RSV | CBS | RSV | Max TCs | * | 1b | 1b | 3b | 3b | * ---------------------------- */ etscfg = &dcbcfg->etscfg; buf[0] = etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M; /* bytes 1 - 4 reserved */ offset = 5; /* TC BW table * bytes 0 - 7 for TC 0 - 7 * * TSA Assignment table * bytes 8 - 15 for TC 0 - 7 */ for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) { buf[offset] = etscfg->tcbwtable[i]; buf[offset + ICE_MAX_TRAFFIC_CLASS] = etscfg->tsatable[i]; offset++; } } /** * ice_add_dscp_pfc_tlv - Prepare DSCP PFC TLV * @tlv: Fill PFC TLV in IEEE format * @dcbcfg: Local store which holds the PFC CFG data */ static void ice_add_dscp_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) { u8 *buf = tlv->tlvinfo; u32 ouisubtype; u16 typelen; typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | ICE_DSCP_PFC_TLV_LEN); tlv->typelen = htons(typelen); ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | ICE_DSCP_SUBTYPE_PFC); tlv->ouisubtype = htonl(ouisubtype); buf[0] = dcbcfg->pfc.pfccap & 0xF; buf[1] = dcbcfg->pfc.pfcena & 0xF; } /** * ice_add_dcb_tlv - Add all IEEE or DSCP TLVs * @tlv: Fill TLV data in IEEE format * @dcbcfg: Local store which holds the DCB Config * @tlvid: Type of IEEE TLV * * Add tlv information */ static void ice_add_dcb_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg, u16 tlvid) { if (dcbcfg->pfc_mode == ICE_QOS_MODE_VLAN) { switch (tlvid) { case ICE_IEEE_TLV_ID_ETS_CFG: ice_add_ieee_ets_tlv(tlv, dcbcfg); break; case ICE_IEEE_TLV_ID_ETS_REC: ice_add_ieee_etsrec_tlv(tlv, dcbcfg); break; case ICE_IEEE_TLV_ID_PFC_CFG: ice_add_ieee_pfc_tlv(tlv, dcbcfg); break; case ICE_IEEE_TLV_ID_APP_PRI: ice_add_ieee_app_pri_tlv(tlv, dcbcfg); break; default: break; } } else { /* pfc_mode == ICE_QOS_MODE_DSCP */ switch (tlvid) { case ICE_TLV_ID_DSCP_UP: ice_add_dscp_up_tlv(tlv, dcbcfg); break; case ICE_TLV_ID_DSCP_ENF: ice_add_dscp_enf_tlv(tlv); break; case ICE_TLV_ID_DSCP_TC_BW: ice_add_dscp_tc_bw_tlv(tlv, dcbcfg); break; case ICE_TLV_ID_DSCP_TO_PFC: ice_add_dscp_pfc_tlv(tlv, dcbcfg); break; default: break; } } } /** * ice_dcb_cfg_to_lldp - Convert DCB configuration to MIB format * @lldpmib: pointer to the HW struct * @miblen: length of LLDP MIB * @dcbcfg: Local store which holds the DCB Config * * Convert the DCB configuration to MIB format */ static void ice_dcb_cfg_to_lldp(u8 *lldpmib, u16 *miblen, struct ice_dcbx_cfg *dcbcfg) { u16 len, offset = 0, tlvid = ICE_TLV_ID_START; struct ice_lldp_org_tlv *tlv; u16 typelen; tlv = (struct ice_lldp_org_tlv *)lldpmib; while (1) { ice_add_dcb_tlv(tlv, dcbcfg, tlvid++); typelen = ntohs(tlv->typelen); len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S; if (len) offset += len + 2; /* END TLV or beyond LLDPDU size */ if (tlvid >= ICE_TLV_ID_END_OF_LLDPPDU || offset > ICE_LLDPDU_SIZE) break; /* Move to next TLV */ if (len) tlv = (struct ice_lldp_org_tlv *) ((char *)tlv + sizeof(tlv->typelen) + len); } *miblen = offset; } /** * ice_set_dcb_cfg - Set the local LLDP MIB to FW * @pi: port information structure * * Set DCB configuration to the Firmware */ int ice_set_dcb_cfg(struct ice_port_info *pi) { u8 mib_type, *lldpmib = NULL; struct ice_dcbx_cfg *dcbcfg; struct ice_hw *hw; u16 miblen; int ret; if (!pi) return -EINVAL; hw = pi->hw; /* update the HW local config */ dcbcfg = &pi->qos_cfg.local_dcbx_cfg; /* Allocate the LLDPDU */ lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL); if (!lldpmib) return -ENOMEM; mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB; if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING) mib_type |= SET_LOCAL_MIB_TYPE_CEE_NON_WILLING; ice_dcb_cfg_to_lldp(lldpmib, &miblen, dcbcfg); ret = ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen, NULL); devm_kfree(ice_hw_to_dev(hw), lldpmib); return ret; } /** * ice_aq_query_port_ets - query port ETS configuration * @pi: port information structure * @buf: pointer to buffer * @buf_size: buffer size in bytes * @cd: pointer to command details structure or NULL * * query current port ETS configuration */ static int ice_aq_query_port_ets(struct ice_port_info *pi, struct ice_aqc_port_ets_elem *buf, u16 buf_size, struct ice_sq_cd *cd) { struct ice_aqc_query_port_ets *cmd; struct ice_aq_desc desc; int status; if (!pi) return -EINVAL; cmd = &desc.params.port_ets; ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_query_port_ets); cmd->port_teid = pi->root->info.node_teid; status = ice_aq_send_cmd(pi->hw, &desc, buf, buf_size, cd); return status; } /** * ice_update_port_tc_tree_cfg - update TC tree configuration * @pi: port information structure * @buf: pointer to buffer * * update the SW DB with the new TC changes */ static int ice_update_port_tc_tree_cfg(struct ice_port_info *pi, struct ice_aqc_port_ets_elem *buf) { struct ice_sched_node *node, *tc_node; struct ice_aqc_txsched_elem_data elem; u32 teid1, teid2; int status = 0; u8 i, j; if (!pi) return -EINVAL; /* suspend the missing TC nodes */ for (i = 0; i < pi->root->num_children; i++) { teid1 = le32_to_cpu(pi->root->children[i]->info.node_teid); ice_for_each_traffic_class(j) { teid2 = le32_to_cpu(buf->tc_node_teid[j]); if (teid1 == teid2) break; } if (j < ICE_MAX_TRAFFIC_CLASS) continue; /* TC is missing */ pi->root->children[i]->in_use = false; } /* add the new TC nodes */ ice_for_each_traffic_class(j) { teid2 = le32_to_cpu(buf->tc_node_teid[j]); if (teid2 == ICE_INVAL_TEID) continue; /* Is it already present in the tree ? */ for (i = 0; i < pi->root->num_children; i++) { tc_node = pi->root->children[i]; if (!tc_node) continue; teid1 = le32_to_cpu(tc_node->info.node_teid); if (teid1 == teid2) { tc_node->tc_num = j; tc_node->in_use = true; break; } } if (i < pi->root->num_children) continue; /* new TC */ status = ice_sched_query_elem(pi->hw, teid2, &elem); if (!status) status = ice_sched_add_node(pi, 1, &elem, NULL); if (status) break; /* update the TC number */ node = ice_sched_find_node_by_teid(pi->root, teid2); if (node) node->tc_num = j; } return status; } /** * ice_query_port_ets - query port ETS configuration * @pi: port information structure * @buf: pointer to buffer * @buf_size: buffer size in bytes * @cd: pointer to command details structure or NULL * * query current port ETS configuration and update the * SW DB with the TC changes */ int ice_query_port_ets(struct ice_port_info *pi, struct ice_aqc_port_ets_elem *buf, u16 buf_size, struct ice_sq_cd *cd) { int status; mutex_lock(&pi->sched_lock); status = ice_aq_query_port_ets(pi, buf, buf_size, cd); if (!status) status = ice_update_port_tc_tree_cfg(pi, buf); mutex_unlock(&pi->sched_lock); return status; }