| // 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 enum ice_status |
| 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; |
| enum ice_status status; |
| |
| cmd = &desc.params.lldp_get_mib; |
| |
| if (buf_size == 0 || !buf) |
| return ICE_ERR_PARAM; |
| |
| 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 enum ice_status |
| 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; |
| |
| 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) |
| */ |
| enum ice_status |
| 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) |
| */ |
| enum ice_status |
| 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 only IEEE 802.1Qaz TLV is supported, all 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; |
| } |
| } |
| |
| /** |
| * ice_lldp_to_dcb_cfg |
| * @lldpmib: LLDPDU to be parsed |
| * @dcbcfg: store for LLDPDU data |
| * |
| * Parse DCB configuration from the LLDPDU |
| */ |
| static enum ice_status |
| ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg) |
| { |
| struct ice_lldp_org_tlv *tlv; |
| enum ice_status ret = 0; |
| u16 offset = 0; |
| u16 typelen; |
| u16 type; |
| u16 len; |
| |
| if (!lldpmib || !dcbcfg) |
| return ICE_ERR_PARAM; |
| |
| /* 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 |
| */ |
| enum ice_status |
| ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype, |
| struct ice_dcbx_cfg *dcbcfg) |
| { |
| enum ice_status ret; |
| u8 *lldpmib; |
| |
| /* Allocate the LLDPDU */ |
| lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL); |
| if (!lldpmib) |
| return ICE_ERR_NO_MEMORY; |
| |
| 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 ICE_SUCCESS, caller will need to check if FW returns back the same |
| * value as stated in dcbx_agent_status, and react accordingly. (0x0A09) |
| */ |
| enum ice_status |
| 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; |
| enum ice_status status; |
| struct ice_aq_desc desc; |
| u16 opcode; |
| |
| 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 enum ice_status |
| 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_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 enum ice_status |
| ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode) |
| { |
| struct ice_dcbx_cfg *dcbx_cfg = NULL; |
| enum ice_status ret; |
| |
| if (!pi) |
| return ICE_ERR_PARAM; |
| |
| 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 |
| */ |
| enum ice_status 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; |
| enum ice_status ret; |
| |
| if (!pi) |
| return ICE_ERR_PARAM; |
| |
| 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_init_dcb |
| * @hw: pointer to the HW struct |
| * @enable_mib_change: enable MIB change event |
| * |
| * Update DCB configuration from the Firmware |
| */ |
| enum ice_status ice_init_dcb(struct ice_hw *hw, bool enable_mib_change) |
| { |
| struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg; |
| enum ice_status ret = 0; |
| |
| if (!hw->func_caps.common_cap.dcb) |
| return ICE_ERR_NOT_SUPPORTED; |
| |
| 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 ICE_ERR_NOT_READY; |
| } |
| |
| /* 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 |
| */ |
| enum ice_status ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib) |
| { |
| struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg; |
| enum ice_status ret; |
| |
| if (!hw->func_caps.common_cap.dcb) |
| return ICE_ERR_NOT_SUPPORTED; |
| |
| /* Get DCBX status */ |
| qos_cfg->dcbx_status = ice_get_dcbx_status(hw); |
| |
| if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) |
| return ICE_ERR_NOT_READY; |
| |
| 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_dcb_tlv - Add all IEEE 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) |
| { |
| 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; |
| } |
| } |
| |
| /** |
| * 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 |
| */ |
| enum ice_status ice_set_dcb_cfg(struct ice_port_info *pi) |
| { |
| u8 mib_type, *lldpmib = NULL; |
| struct ice_dcbx_cfg *dcbcfg; |
| enum ice_status ret; |
| struct ice_hw *hw; |
| u16 miblen; |
| |
| if (!pi) |
| return ICE_ERR_PARAM; |
| |
| 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 ICE_ERR_NO_MEMORY; |
| |
| 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 enum ice_status |
| 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; |
| enum ice_status status; |
| |
| if (!pi) |
| return ICE_ERR_PARAM; |
| 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 enum ice_status |
| 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; |
| enum ice_status status = 0; |
| u32 teid1, teid2; |
| u8 i, j; |
| |
| if (!pi) |
| return ICE_ERR_PARAM; |
| /* 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); |
| 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 |
| */ |
| enum ice_status |
| ice_query_port_ets(struct ice_port_info *pi, |
| struct ice_aqc_port_ets_elem *buf, u16 buf_size, |
| struct ice_sq_cd *cd) |
| { |
| enum ice_status 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; |
| } |
