| /******************************************************************************* |
| * |
| * Intel Ethernet Controller XL710 Family Linux Driver |
| * Copyright(c) 2013 - 2017 Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| * The full GNU General Public License is included in this distribution in |
| * the file called "COPYING". |
| * |
| * Contact Information: |
| * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| ******************************************************************************/ |
| |
| #include "i40e_adminq.h" |
| #include "i40e_prototype.h" |
| #include "i40e_dcb.h" |
| |
| /** |
| * i40e_get_dcbx_status |
| * @hw: pointer to the hw struct |
| * @status: Embedded DCBX Engine Status |
| * |
| * Get the DCBX status from the Firmware |
| **/ |
| i40e_status i40e_get_dcbx_status(struct i40e_hw *hw, u16 *status) |
| { |
| u32 reg; |
| |
| if (!status) |
| return I40E_ERR_PARAM; |
| |
| reg = rd32(hw, I40E_PRTDCB_GENS); |
| *status = (u16)((reg & I40E_PRTDCB_GENS_DCBX_STATUS_MASK) >> |
| I40E_PRTDCB_GENS_DCBX_STATUS_SHIFT); |
| |
| return 0; |
| } |
| |
| /** |
| * i40e_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 i40e_parse_ieee_etscfg_tlv(struct i40e_lldp_org_tlv *tlv, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| struct i40e_dcb_ets_config *etscfg; |
| u8 *buf = tlv->tlvinfo; |
| u16 offset = 0; |
| u8 priority; |
| int i; |
| |
| /* First Octet post subtype |
| * -------------------------- |
| * |will-|CBS | Re- | Max | |
| * |ing | |served| TCs | |
| * -------------------------- |
| * |1bit | 1bit|3 bits|3bits| |
| */ |
| etscfg = &dcbcfg->etscfg; |
| etscfg->willing = (u8)((buf[offset] & I40E_IEEE_ETS_WILLING_MASK) >> |
| I40E_IEEE_ETS_WILLING_SHIFT); |
| etscfg->cbs = (u8)((buf[offset] & I40E_IEEE_ETS_CBS_MASK) >> |
| I40E_IEEE_ETS_CBS_SHIFT); |
| etscfg->maxtcs = (u8)((buf[offset] & I40E_IEEE_ETS_MAXTC_MASK) >> |
| I40E_IEEE_ETS_MAXTC_SHIFT); |
| |
| /* Move offset to Priority Assignment Table */ |
| offset++; |
| |
| /* 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++) { |
| priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_1_MASK) >> |
| I40E_IEEE_ETS_PRIO_1_SHIFT); |
| etscfg->prioritytable[i * 2] = priority; |
| priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_0_MASK) >> |
| I40E_IEEE_ETS_PRIO_0_SHIFT); |
| etscfg->prioritytable[i * 2 + 1] = priority; |
| offset++; |
| } |
| |
| /* TC Bandwidth Table (8 octets) |
| * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| * --------------------------------- |
| * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| |
| * --------------------------------- |
| */ |
| for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) |
| etscfg->tcbwtable[i] = buf[offset++]; |
| |
| /* TSA Assignment Table (8 octets) |
| * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| * --------------------------------- |
| * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| |
| * --------------------------------- |
| */ |
| for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) |
| etscfg->tsatable[i] = buf[offset++]; |
| } |
| |
| /** |
| * i40e_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 i40e_parse_ieee_etsrec_tlv(struct i40e_lldp_org_tlv *tlv, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| u8 *buf = tlv->tlvinfo; |
| u16 offset = 0; |
| u8 priority; |
| int i; |
| |
| /* Move offset to priority table */ |
| offset++; |
| |
| /* 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++) { |
| priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_1_MASK) >> |
| I40E_IEEE_ETS_PRIO_1_SHIFT); |
| dcbcfg->etsrec.prioritytable[i*2] = priority; |
| priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_0_MASK) >> |
| I40E_IEEE_ETS_PRIO_0_SHIFT); |
| dcbcfg->etsrec.prioritytable[i*2 + 1] = priority; |
| offset++; |
| } |
| |
| /* TC Bandwidth Table (8 octets) |
| * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| * --------------------------------- |
| * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| |
| * --------------------------------- |
| */ |
| for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) |
| dcbcfg->etsrec.tcbwtable[i] = buf[offset++]; |
| |
| /* TSA Assignment Table (8 octets) |
| * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| * --------------------------------- |
| * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| |
| * --------------------------------- |
| */ |
| for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) |
| dcbcfg->etsrec.tsatable[i] = buf[offset++]; |
| } |
| |
| /** |
| * i40e_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 i40e_parse_ieee_pfccfg_tlv(struct i40e_lldp_org_tlv *tlv, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| u8 *buf = tlv->tlvinfo; |
| |
| /* ---------------------------------------- |
| * |will-|MBC | Re- | PFC | PFC Enable | |
| * |ing | |served| cap | | |
| * ----------------------------------------- |
| * |1bit | 1bit|2 bits|4bits| 1 octet | |
| */ |
| dcbcfg->pfc.willing = (u8)((buf[0] & I40E_IEEE_PFC_WILLING_MASK) >> |
| I40E_IEEE_PFC_WILLING_SHIFT); |
| dcbcfg->pfc.mbc = (u8)((buf[0] & I40E_IEEE_PFC_MBC_MASK) >> |
| I40E_IEEE_PFC_MBC_SHIFT); |
| dcbcfg->pfc.pfccap = (u8)((buf[0] & I40E_IEEE_PFC_CAP_MASK) >> |
| I40E_IEEE_PFC_CAP_SHIFT); |
| dcbcfg->pfc.pfcenable = buf[1]; |
| } |
| |
| /** |
| * i40e_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 i40e_parse_ieee_app_tlv(struct i40e_lldp_org_tlv *tlv, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| u16 typelength; |
| u16 offset = 0; |
| u16 length; |
| int i = 0; |
| u8 *buf; |
| |
| typelength = ntohs(tlv->typelength); |
| length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >> |
| I40E_LLDP_TLV_LEN_SHIFT); |
| buf = tlv->tlvinfo; |
| |
| /* The App priority table starts 5 octets after TLV header */ |
| length -= (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 < length) { |
| dcbcfg->app[i].priority = (u8)((buf[offset] & |
| I40E_IEEE_APP_PRIO_MASK) >> |
| I40E_IEEE_APP_PRIO_SHIFT); |
| dcbcfg->app[i].selector = (u8)((buf[offset] & |
| I40E_IEEE_APP_SEL_MASK) >> |
| I40E_IEEE_APP_SEL_SHIFT); |
| dcbcfg->app[i].protocolid = (buf[offset + 1] << 0x8) | |
| buf[offset + 2]; |
| /* Move to next app */ |
| offset += 3; |
| i++; |
| if (i >= I40E_DCBX_MAX_APPS) |
| break; |
| } |
| |
| dcbcfg->numapps = i; |
| } |
| |
| /** |
| * i40e_parse_ieee_etsrec_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 i40e_parse_ieee_tlv(struct i40e_lldp_org_tlv *tlv, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| u32 ouisubtype; |
| u8 subtype; |
| |
| ouisubtype = ntohl(tlv->ouisubtype); |
| subtype = (u8)((ouisubtype & I40E_LLDP_TLV_SUBTYPE_MASK) >> |
| I40E_LLDP_TLV_SUBTYPE_SHIFT); |
| switch (subtype) { |
| case I40E_IEEE_SUBTYPE_ETS_CFG: |
| i40e_parse_ieee_etscfg_tlv(tlv, dcbcfg); |
| break; |
| case I40E_IEEE_SUBTYPE_ETS_REC: |
| i40e_parse_ieee_etsrec_tlv(tlv, dcbcfg); |
| break; |
| case I40E_IEEE_SUBTYPE_PFC_CFG: |
| i40e_parse_ieee_pfccfg_tlv(tlv, dcbcfg); |
| break; |
| case I40E_IEEE_SUBTYPE_APP_PRI: |
| i40e_parse_ieee_app_tlv(tlv, dcbcfg); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * i40e_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 i40e_parse_cee_pgcfg_tlv(struct i40e_cee_feat_tlv *tlv, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| struct i40e_dcb_ets_config *etscfg; |
| u8 *buf = tlv->tlvinfo; |
| u16 offset = 0; |
| u8 priority; |
| int i; |
| |
| etscfg = &dcbcfg->etscfg; |
| |
| if (tlv->en_will_err & I40E_CEE_FEAT_TLV_WILLING_MASK) |
| 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++) { |
| priority = (u8)((buf[offset] & I40E_CEE_PGID_PRIO_1_MASK) >> |
| I40E_CEE_PGID_PRIO_1_SHIFT); |
| etscfg->prioritytable[i * 2] = priority; |
| priority = (u8)((buf[offset] & I40E_CEE_PGID_PRIO_0_MASK) >> |
| I40E_CEE_PGID_PRIO_0_SHIFT); |
| etscfg->prioritytable[i * 2 + 1] = priority; |
| offset++; |
| } |
| |
| /* PG Percentage Table (8 octets) |
| * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| * --------------------------------- |
| * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7| |
| * --------------------------------- |
| */ |
| for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) |
| etscfg->tcbwtable[i] = buf[offset++]; |
| |
| /* Number of TCs supported (1 octet) */ |
| etscfg->maxtcs = buf[offset]; |
| } |
| |
| /** |
| * i40e_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 i40e_parse_cee_pfccfg_tlv(struct i40e_cee_feat_tlv *tlv, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| u8 *buf = tlv->tlvinfo; |
| |
| if (tlv->en_will_err & I40E_CEE_FEAT_TLV_WILLING_MASK) |
| dcbcfg->pfc.willing = 1; |
| |
| /* ------------------------ |
| * | PFC Enable | PFC TCs | |
| * ------------------------ |
| * | 1 octet | 1 octet | |
| */ |
| dcbcfg->pfc.pfcenable = buf[0]; |
| dcbcfg->pfc.pfccap = buf[1]; |
| } |
| |
| /** |
| * i40e_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 i40e_parse_cee_app_tlv(struct i40e_cee_feat_tlv *tlv, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| u16 length, typelength, offset = 0; |
| struct i40e_cee_app_prio *app; |
| u8 i; |
| |
| typelength = ntohs(tlv->hdr.typelen); |
| length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >> |
| I40E_LLDP_TLV_LEN_SHIFT); |
| |
| dcbcfg->numapps = length / sizeof(*app); |
| |
| if (!dcbcfg->numapps) |
| return; |
| if (dcbcfg->numapps > I40E_DCBX_MAX_APPS) |
| dcbcfg->numapps = I40E_DCBX_MAX_APPS; |
| |
| for (i = 0; i < dcbcfg->numapps; i++) { |
| u8 up, selector; |
| |
| app = (struct i40e_cee_app_prio *)(tlv->tlvinfo + offset); |
| for (up = 0; up < I40E_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 & I40E_CEE_APP_SELECTOR_MASK); |
| switch (selector) { |
| case I40E_CEE_APP_SEL_ETHTYPE: |
| dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE; |
| break; |
| case I40E_CEE_APP_SEL_TCPIP: |
| dcbcfg->app[i].selector = I40E_APP_SEL_TCPIP; |
| break; |
| default: |
| /* Keep selector as it is for unknown types */ |
| dcbcfg->app[i].selector = selector; |
| } |
| |
| dcbcfg->app[i].protocolid = ntohs(app->protocol); |
| /* Move to next app */ |
| offset += sizeof(*app); |
| } |
| } |
| |
| /** |
| * i40e_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 i40e_parse_cee_tlv(struct i40e_lldp_org_tlv *tlv, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| u16 len, tlvlen, sublen, typelength; |
| struct i40e_cee_feat_tlv *sub_tlv; |
| u8 subtype, feat_tlv_count = 0; |
| u32 ouisubtype; |
| |
| ouisubtype = ntohl(tlv->ouisubtype); |
| subtype = (u8)((ouisubtype & I40E_LLDP_TLV_SUBTYPE_MASK) >> |
| I40E_LLDP_TLV_SUBTYPE_SHIFT); |
| /* Return if not CEE DCBX */ |
| if (subtype != I40E_CEE_DCBX_TYPE) |
| return; |
| |
| typelength = ntohs(tlv->typelength); |
| tlvlen = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >> |
| I40E_LLDP_TLV_LEN_SHIFT); |
| len = sizeof(tlv->typelength) + sizeof(ouisubtype) + |
| sizeof(struct i40e_cee_ctrl_tlv); |
| /* Return if no CEE DCBX Feature TLVs */ |
| if (tlvlen <= len) |
| return; |
| |
| sub_tlv = (struct i40e_cee_feat_tlv *)((char *)tlv + len); |
| while (feat_tlv_count < I40E_CEE_MAX_FEAT_TYPE) { |
| typelength = ntohs(sub_tlv->hdr.typelen); |
| sublen = (u16)((typelength & |
| I40E_LLDP_TLV_LEN_MASK) >> |
| I40E_LLDP_TLV_LEN_SHIFT); |
| subtype = (u8)((typelength & I40E_LLDP_TLV_TYPE_MASK) >> |
| I40E_LLDP_TLV_TYPE_SHIFT); |
| switch (subtype) { |
| case I40E_CEE_SUBTYPE_PG_CFG: |
| i40e_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg); |
| break; |
| case I40E_CEE_SUBTYPE_PFC_CFG: |
| i40e_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg); |
| break; |
| case I40E_CEE_SUBTYPE_APP_PRI: |
| i40e_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 i40e_cee_feat_tlv *)((char *)sub_tlv + |
| sizeof(sub_tlv->hdr.typelen) + |
| sublen); |
| } |
| } |
| |
| /** |
| * i40e_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 i40e_parse_org_tlv(struct i40e_lldp_org_tlv *tlv, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| u32 ouisubtype; |
| u32 oui; |
| |
| ouisubtype = ntohl(tlv->ouisubtype); |
| oui = (u32)((ouisubtype & I40E_LLDP_TLV_OUI_MASK) >> |
| I40E_LLDP_TLV_OUI_SHIFT); |
| switch (oui) { |
| case I40E_IEEE_8021QAZ_OUI: |
| i40e_parse_ieee_tlv(tlv, dcbcfg); |
| break; |
| case I40E_CEE_DCBX_OUI: |
| i40e_parse_cee_tlv(tlv, dcbcfg); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * i40e_lldp_to_dcb_config |
| * @lldpmib: LLDPDU to be parsed |
| * @dcbcfg: store for LLDPDU data |
| * |
| * Parse DCB configuration from the LLDPDU |
| **/ |
| i40e_status i40e_lldp_to_dcb_config(u8 *lldpmib, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| i40e_status ret = 0; |
| struct i40e_lldp_org_tlv *tlv; |
| u16 type; |
| u16 length; |
| u16 typelength; |
| u16 offset = 0; |
| |
| if (!lldpmib || !dcbcfg) |
| return I40E_ERR_PARAM; |
| |
| /* set to the start of LLDPDU */ |
| lldpmib += ETH_HLEN; |
| tlv = (struct i40e_lldp_org_tlv *)lldpmib; |
| while (1) { |
| typelength = ntohs(tlv->typelength); |
| type = (u16)((typelength & I40E_LLDP_TLV_TYPE_MASK) >> |
| I40E_LLDP_TLV_TYPE_SHIFT); |
| length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >> |
| I40E_LLDP_TLV_LEN_SHIFT); |
| offset += sizeof(typelength) + length; |
| |
| /* END TLV or beyond LLDPDU size */ |
| if ((type == I40E_TLV_TYPE_END) || (offset > I40E_LLDPDU_SIZE)) |
| break; |
| |
| switch (type) { |
| case I40E_TLV_TYPE_ORG: |
| i40e_parse_org_tlv(tlv, dcbcfg); |
| break; |
| default: |
| break; |
| } |
| |
| /* Move to next TLV */ |
| tlv = (struct i40e_lldp_org_tlv *)((char *)tlv + |
| sizeof(tlv->typelength) + |
| length); |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * i40e_aq_get_dcb_config |
| * @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 |
| **/ |
| i40e_status i40e_aq_get_dcb_config(struct i40e_hw *hw, u8 mib_type, |
| u8 bridgetype, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| i40e_status ret = 0; |
| struct i40e_virt_mem mem; |
| u8 *lldpmib; |
| |
| /* Allocate the LLDPDU */ |
| ret = i40e_allocate_virt_mem(hw, &mem, I40E_LLDPDU_SIZE); |
| if (ret) |
| return ret; |
| |
| lldpmib = (u8 *)mem.va; |
| ret = i40e_aq_get_lldp_mib(hw, bridgetype, mib_type, |
| (void *)lldpmib, I40E_LLDPDU_SIZE, |
| NULL, NULL, NULL); |
| if (ret) |
| goto free_mem; |
| |
| /* Parse LLDP MIB to get dcb configuration */ |
| ret = i40e_lldp_to_dcb_config(lldpmib, dcbcfg); |
| |
| free_mem: |
| i40e_free_virt_mem(hw, &mem); |
| return ret; |
| } |
| |
| /** |
| * i40e_cee_to_dcb_v1_config |
| * @cee_cfg: pointer to CEE v1 response configuration struct |
| * @dcbcfg: DCB configuration struct |
| * |
| * Convert CEE v1 configuration from firmware to DCB configuration |
| **/ |
| static void i40e_cee_to_dcb_v1_config( |
| struct i40e_aqc_get_cee_dcb_cfg_v1_resp *cee_cfg, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| u16 status, tlv_status = le16_to_cpu(cee_cfg->tlv_status); |
| u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio); |
| u8 i, tc, err; |
| |
| /* CEE PG data to ETS config */ |
| 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 < 4; i++) { |
| tc = (u8)((cee_cfg->oper_prio_tc[i] & |
| I40E_CEE_PGID_PRIO_0_MASK) >> |
| I40E_CEE_PGID_PRIO_0_SHIFT); |
| dcbcfg->etscfg.prioritytable[i * 2] = tc; |
| tc = (u8)((cee_cfg->oper_prio_tc[i] & |
| I40E_CEE_PGID_PRIO_1_MASK) >> |
| I40E_CEE_PGID_PRIO_1_SHIFT); |
| dcbcfg->etscfg.prioritytable[i*2 + 1] = tc; |
| } |
| |
| for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) |
| dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i]; |
| |
| for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { |
| if (dcbcfg->etscfg.prioritytable[i] == I40E_CEE_PGID_STRICT) { |
| /* Map it to next empty TC */ |
| dcbcfg->etscfg.prioritytable[i] = |
| cee_cfg->oper_num_tc - 1; |
| dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_STRICT; |
| } else { |
| dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_ETS; |
| } |
| } |
| |
| /* CEE PFC data to ETS config */ |
| dcbcfg->pfc.pfcenable = cee_cfg->oper_pfc_en; |
| dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS; |
| |
| status = (tlv_status & I40E_AQC_CEE_APP_STATUS_MASK) >> |
| I40E_AQC_CEE_APP_STATUS_SHIFT; |
| err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0; |
| /* Add APPs if Error is False */ |
| if (!err) { |
| /* CEE operating configuration supports FCoE/iSCSI/FIP only */ |
| dcbcfg->numapps = I40E_CEE_OPER_MAX_APPS; |
| |
| /* FCoE APP */ |
| dcbcfg->app[0].priority = |
| (app_prio & I40E_AQC_CEE_APP_FCOE_MASK) >> |
| I40E_AQC_CEE_APP_FCOE_SHIFT; |
| dcbcfg->app[0].selector = I40E_APP_SEL_ETHTYPE; |
| dcbcfg->app[0].protocolid = I40E_APP_PROTOID_FCOE; |
| |
| /* iSCSI APP */ |
| dcbcfg->app[1].priority = |
| (app_prio & I40E_AQC_CEE_APP_ISCSI_MASK) >> |
| I40E_AQC_CEE_APP_ISCSI_SHIFT; |
| dcbcfg->app[1].selector = I40E_APP_SEL_TCPIP; |
| dcbcfg->app[1].protocolid = I40E_APP_PROTOID_ISCSI; |
| |
| /* FIP APP */ |
| dcbcfg->app[2].priority = |
| (app_prio & I40E_AQC_CEE_APP_FIP_MASK) >> |
| I40E_AQC_CEE_APP_FIP_SHIFT; |
| dcbcfg->app[2].selector = I40E_APP_SEL_ETHTYPE; |
| dcbcfg->app[2].protocolid = I40E_APP_PROTOID_FIP; |
| } |
| } |
| |
| /** |
| * i40e_cee_to_dcb_config |
| * @cee_cfg: pointer to CEE configuration struct |
| * @dcbcfg: DCB configuration struct |
| * |
| * Convert CEE configuration from firmware to DCB configuration |
| **/ |
| static void i40e_cee_to_dcb_config( |
| struct i40e_aqc_get_cee_dcb_cfg_resp *cee_cfg, |
| struct i40e_dcbx_config *dcbcfg) |
| { |
| u32 status, tlv_status = le32_to_cpu(cee_cfg->tlv_status); |
| u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio); |
| u8 i, tc, err, sync, oper; |
| |
| /* CEE PG data to ETS config */ |
| 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 < 4; i++) { |
| tc = (u8)((cee_cfg->oper_prio_tc[i] & |
| I40E_CEE_PGID_PRIO_0_MASK) >> |
| I40E_CEE_PGID_PRIO_0_SHIFT); |
| dcbcfg->etscfg.prioritytable[i * 2] = tc; |
| tc = (u8)((cee_cfg->oper_prio_tc[i] & |
| I40E_CEE_PGID_PRIO_1_MASK) >> |
| I40E_CEE_PGID_PRIO_1_SHIFT); |
| dcbcfg->etscfg.prioritytable[i * 2 + 1] = tc; |
| } |
| |
| for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) |
| dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i]; |
| |
| for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { |
| if (dcbcfg->etscfg.prioritytable[i] == I40E_CEE_PGID_STRICT) { |
| /* Map it to next empty TC */ |
| dcbcfg->etscfg.prioritytable[i] = |
| cee_cfg->oper_num_tc - 1; |
| dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_STRICT; |
| } else { |
| dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_ETS; |
| } |
| } |
| |
| /* CEE PFC data to ETS config */ |
| dcbcfg->pfc.pfcenable = cee_cfg->oper_pfc_en; |
| dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS; |
| |
| i = 0; |
| status = (tlv_status & I40E_AQC_CEE_FCOE_STATUS_MASK) >> |
| I40E_AQC_CEE_FCOE_STATUS_SHIFT; |
| err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0; |
| sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0; |
| oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0; |
| /* Add FCoE APP if Error is False and Oper/Sync is True */ |
| if (!err && sync && oper) { |
| /* FCoE APP */ |
| dcbcfg->app[i].priority = |
| (app_prio & I40E_AQC_CEE_APP_FCOE_MASK) >> |
| I40E_AQC_CEE_APP_FCOE_SHIFT; |
| dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE; |
| dcbcfg->app[i].protocolid = I40E_APP_PROTOID_FCOE; |
| i++; |
| } |
| |
| status = (tlv_status & I40E_AQC_CEE_ISCSI_STATUS_MASK) >> |
| I40E_AQC_CEE_ISCSI_STATUS_SHIFT; |
| err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0; |
| sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0; |
| oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0; |
| /* Add iSCSI APP if Error is False and Oper/Sync is True */ |
| if (!err && sync && oper) { |
| /* iSCSI APP */ |
| dcbcfg->app[i].priority = |
| (app_prio & I40E_AQC_CEE_APP_ISCSI_MASK) >> |
| I40E_AQC_CEE_APP_ISCSI_SHIFT; |
| dcbcfg->app[i].selector = I40E_APP_SEL_TCPIP; |
| dcbcfg->app[i].protocolid = I40E_APP_PROTOID_ISCSI; |
| i++; |
| } |
| |
| status = (tlv_status & I40E_AQC_CEE_FIP_STATUS_MASK) >> |
| I40E_AQC_CEE_FIP_STATUS_SHIFT; |
| err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0; |
| sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0; |
| oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0; |
| /* Add FIP APP if Error is False and Oper/Sync is True */ |
| if (!err && sync && oper) { |
| /* FIP APP */ |
| dcbcfg->app[i].priority = |
| (app_prio & I40E_AQC_CEE_APP_FIP_MASK) >> |
| I40E_AQC_CEE_APP_FIP_SHIFT; |
| dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE; |
| dcbcfg->app[i].protocolid = I40E_APP_PROTOID_FIP; |
| i++; |
| } |
| dcbcfg->numapps = i; |
| } |
| |
| /** |
| * i40e_get_ieee_dcb_config |
| * @hw: pointer to the hw struct |
| * |
| * Get IEEE mode DCB configuration from the Firmware |
| **/ |
| static i40e_status i40e_get_ieee_dcb_config(struct i40e_hw *hw) |
| { |
| i40e_status ret = 0; |
| |
| /* IEEE mode */ |
| hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_IEEE; |
| /* Get Local DCB Config */ |
| ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_LOCAL, 0, |
| &hw->local_dcbx_config); |
| if (ret) |
| goto out; |
| |
| /* Get Remote DCB Config */ |
| ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE, |
| I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, |
| &hw->remote_dcbx_config); |
| /* Don't treat ENOENT as an error for Remote MIBs */ |
| if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT) |
| ret = 0; |
| |
| out: |
| return ret; |
| } |
| |
| /** |
| * i40e_get_dcb_config |
| * @hw: pointer to the hw struct |
| * |
| * Get DCB configuration from the Firmware |
| **/ |
| i40e_status i40e_get_dcb_config(struct i40e_hw *hw) |
| { |
| i40e_status ret = 0; |
| struct i40e_aqc_get_cee_dcb_cfg_resp cee_cfg; |
| struct i40e_aqc_get_cee_dcb_cfg_v1_resp cee_v1_cfg; |
| |
| /* If Firmware version < v4.33 on X710/XL710, IEEE only */ |
| if ((hw->mac.type == I40E_MAC_XL710) && |
| (((hw->aq.fw_maj_ver == 4) && (hw->aq.fw_min_ver < 33)) || |
| (hw->aq.fw_maj_ver < 4))) |
| return i40e_get_ieee_dcb_config(hw); |
| |
| /* If Firmware version == v4.33 on X710/XL710, use old CEE struct */ |
| if ((hw->mac.type == I40E_MAC_XL710) && |
| ((hw->aq.fw_maj_ver == 4) && (hw->aq.fw_min_ver == 33))) { |
| ret = i40e_aq_get_cee_dcb_config(hw, &cee_v1_cfg, |
| sizeof(cee_v1_cfg), NULL); |
| if (!ret) { |
| /* CEE mode */ |
| hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE; |
| hw->local_dcbx_config.tlv_status = |
| le16_to_cpu(cee_v1_cfg.tlv_status); |
| i40e_cee_to_dcb_v1_config(&cee_v1_cfg, |
| &hw->local_dcbx_config); |
| } |
| } else { |
| ret = i40e_aq_get_cee_dcb_config(hw, &cee_cfg, |
| sizeof(cee_cfg), NULL); |
| if (!ret) { |
| /* CEE mode */ |
| hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE; |
| hw->local_dcbx_config.tlv_status = |
| le32_to_cpu(cee_cfg.tlv_status); |
| i40e_cee_to_dcb_config(&cee_cfg, |
| &hw->local_dcbx_config); |
| } |
| } |
| |
| /* CEE mode not enabled try querying IEEE data */ |
| if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT) |
| return i40e_get_ieee_dcb_config(hw); |
| |
| if (ret) |
| goto out; |
| |
| /* Get CEE DCB Desired Config */ |
| ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_LOCAL, 0, |
| &hw->desired_dcbx_config); |
| if (ret) |
| goto out; |
| |
| /* Get Remote DCB Config */ |
| ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE, |
| I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, |
| &hw->remote_dcbx_config); |
| /* Don't treat ENOENT as an error for Remote MIBs */ |
| if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT) |
| ret = 0; |
| |
| out: |
| return ret; |
| } |
| |
| /** |
| * i40e_init_dcb |
| * @hw: pointer to the hw struct |
| * |
| * Update DCB configuration from the Firmware |
| **/ |
| i40e_status i40e_init_dcb(struct i40e_hw *hw) |
| { |
| i40e_status ret = 0; |
| struct i40e_lldp_variables lldp_cfg; |
| u8 adminstatus = 0; |
| |
| if (!hw->func_caps.dcb) |
| return ret; |
| |
| /* Read LLDP NVM area */ |
| ret = i40e_read_lldp_cfg(hw, &lldp_cfg); |
| if (ret) |
| return ret; |
| |
| /* Get the LLDP AdminStatus for the current port */ |
| adminstatus = lldp_cfg.adminstatus >> (hw->port * 4); |
| adminstatus &= 0xF; |
| |
| /* LLDP agent disabled */ |
| if (!adminstatus) { |
| hw->dcbx_status = I40E_DCBX_STATUS_DISABLED; |
| return ret; |
| } |
| |
| /* Get DCBX status */ |
| ret = i40e_get_dcbx_status(hw, &hw->dcbx_status); |
| if (ret) |
| return ret; |
| |
| /* Check the DCBX Status */ |
| switch (hw->dcbx_status) { |
| case I40E_DCBX_STATUS_DONE: |
| case I40E_DCBX_STATUS_IN_PROGRESS: |
| /* Get current DCBX configuration */ |
| ret = i40e_get_dcb_config(hw); |
| if (ret) |
| return ret; |
| break; |
| case I40E_DCBX_STATUS_DISABLED: |
| return ret; |
| case I40E_DCBX_STATUS_NOT_STARTED: |
| case I40E_DCBX_STATUS_MULTIPLE_PEERS: |
| default: |
| break; |
| } |
| |
| /* Configure the LLDP MIB change event */ |
| ret = i40e_aq_cfg_lldp_mib_change_event(hw, true, NULL); |
| if (ret) |
| return ret; |
| |
| return ret; |
| } |
| |
| /** |
| * i40e_read_lldp_cfg - read LLDP Configuration data from NVM |
| * @hw: pointer to the HW structure |
| * @lldp_cfg: pointer to hold lldp configuration variables |
| * |
| * Reads the LLDP configuration data from NVM |
| **/ |
| i40e_status i40e_read_lldp_cfg(struct i40e_hw *hw, |
| struct i40e_lldp_variables *lldp_cfg) |
| { |
| i40e_status ret = 0; |
| u32 offset = (2 * I40E_NVM_LLDP_CFG_PTR); |
| |
| if (!lldp_cfg) |
| return I40E_ERR_PARAM; |
| |
| ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); |
| if (ret) |
| goto err_lldp_cfg; |
| |
| ret = i40e_aq_read_nvm(hw, I40E_SR_EMP_MODULE_PTR, offset, |
| sizeof(struct i40e_lldp_variables), |
| (u8 *)lldp_cfg, |
| true, NULL); |
| i40e_release_nvm(hw); |
| |
| err_lldp_cfg: |
| return ret; |
| } |
