473 lines
12 KiB
C
473 lines
12 KiB
C
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/*******************************************************************************
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*
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* Intel Ethernet Controller XL710 Family Linux Driver
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* Copyright(c) 2013 - 2014 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*
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* Contact Information:
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* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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******************************************************************************/
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#include "i40e_adminq.h"
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#include "i40e_prototype.h"
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#include "i40e_dcb.h"
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/**
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* i40e_get_dcbx_status
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* @hw: pointer to the hw struct
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* @status: Embedded DCBX Engine Status
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*
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* Get the DCBX status from the Firmware
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**/
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i40e_status i40e_get_dcbx_status(struct i40e_hw *hw, u16 *status)
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{
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u32 reg;
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if (!status)
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return I40E_ERR_PARAM;
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reg = rd32(hw, I40E_PRTDCB_GENS);
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*status = (u16)((reg & I40E_PRTDCB_GENS_DCBX_STATUS_MASK) >>
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I40E_PRTDCB_GENS_DCBX_STATUS_SHIFT);
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return 0;
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}
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/**
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* i40e_parse_ieee_etscfg_tlv
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* @tlv: IEEE 802.1Qaz ETS CFG TLV
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* @dcbcfg: Local store to update ETS CFG data
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*
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* Parses IEEE 802.1Qaz ETS CFG TLV
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**/
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static void i40e_parse_ieee_etscfg_tlv(struct i40e_lldp_org_tlv *tlv,
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struct i40e_dcbx_config *dcbcfg)
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{
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struct i40e_ieee_ets_config *etscfg;
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u8 *buf = tlv->tlvinfo;
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u16 offset = 0;
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u8 priority;
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int i;
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/* First Octet post subtype
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* --------------------------
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* |will-|CBS | Re- | Max |
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* |ing | |served| TCs |
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* --------------------------
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* |1bit | 1bit|3 bits|3bits|
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*/
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etscfg = &dcbcfg->etscfg;
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etscfg->willing = (u8)((buf[offset] & I40E_IEEE_ETS_WILLING_MASK) >>
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I40E_IEEE_ETS_WILLING_SHIFT);
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etscfg->cbs = (u8)((buf[offset] & I40E_IEEE_ETS_CBS_MASK) >>
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I40E_IEEE_ETS_CBS_SHIFT);
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etscfg->maxtcs = (u8)((buf[offset] & I40E_IEEE_ETS_MAXTC_MASK) >>
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I40E_IEEE_ETS_MAXTC_SHIFT);
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/* Move offset to Priority Assignment Table */
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offset++;
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/* Priority Assignment Table (4 octets)
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* Octets:| 1 | 2 | 3 | 4 |
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* -----------------------------------------
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* |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
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* -----------------------------------------
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* Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
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* -----------------------------------------
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*/
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for (i = 0; i < 4; i++) {
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priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_1_MASK) >>
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I40E_IEEE_ETS_PRIO_1_SHIFT);
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etscfg->prioritytable[i * 2] = priority;
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priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_0_MASK) >>
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I40E_IEEE_ETS_PRIO_0_SHIFT);
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etscfg->prioritytable[i * 2 + 1] = priority;
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offset++;
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}
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/* TC Bandwidth Table (8 octets)
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* Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
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* ---------------------------------
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* |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
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* ---------------------------------
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*/
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for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
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etscfg->tcbwtable[i] = buf[offset++];
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/* TSA Assignment Table (8 octets)
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* Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
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* ---------------------------------
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* |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
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* ---------------------------------
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*/
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for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
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etscfg->tsatable[i] = buf[offset++];
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}
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/**
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* i40e_parse_ieee_etsrec_tlv
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* @tlv: IEEE 802.1Qaz ETS REC TLV
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* @dcbcfg: Local store to update ETS REC data
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*
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* Parses IEEE 802.1Qaz ETS REC TLV
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**/
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static void i40e_parse_ieee_etsrec_tlv(struct i40e_lldp_org_tlv *tlv,
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struct i40e_dcbx_config *dcbcfg)
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{
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u8 *buf = tlv->tlvinfo;
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u16 offset = 0;
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u8 priority;
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int i;
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/* Move offset to priority table */
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offset++;
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/* Priority Assignment Table (4 octets)
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* Octets:| 1 | 2 | 3 | 4 |
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* -----------------------------------------
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* |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
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* -----------------------------------------
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* Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
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* -----------------------------------------
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*/
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for (i = 0; i < 4; i++) {
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priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_1_MASK) >>
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I40E_IEEE_ETS_PRIO_1_SHIFT);
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dcbcfg->etsrec.prioritytable[i*2] = priority;
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priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_0_MASK) >>
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I40E_IEEE_ETS_PRIO_0_SHIFT);
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dcbcfg->etsrec.prioritytable[i*2 + 1] = priority;
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offset++;
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}
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/* TC Bandwidth Table (8 octets)
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* Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
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* ---------------------------------
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* |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
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* ---------------------------------
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*/
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for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
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dcbcfg->etsrec.tcbwtable[i] = buf[offset++];
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/* TSA Assignment Table (8 octets)
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* Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
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* ---------------------------------
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* |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
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* ---------------------------------
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*/
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for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
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dcbcfg->etsrec.tsatable[i] = buf[offset++];
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}
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/**
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* i40e_parse_ieee_pfccfg_tlv
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* @tlv: IEEE 802.1Qaz PFC CFG TLV
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* @dcbcfg: Local store to update PFC CFG data
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*
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* Parses IEEE 802.1Qaz PFC CFG TLV
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**/
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static void i40e_parse_ieee_pfccfg_tlv(struct i40e_lldp_org_tlv *tlv,
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struct i40e_dcbx_config *dcbcfg)
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{
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u8 *buf = tlv->tlvinfo;
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/* ----------------------------------------
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* |will-|MBC | Re- | PFC | PFC Enable |
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* |ing | |served| cap | |
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* -----------------------------------------
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* |1bit | 1bit|2 bits|4bits| 1 octet |
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*/
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dcbcfg->pfc.willing = (u8)((buf[0] & I40E_IEEE_PFC_WILLING_MASK) >>
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I40E_IEEE_PFC_WILLING_SHIFT);
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dcbcfg->pfc.mbc = (u8)((buf[0] & I40E_IEEE_PFC_MBC_MASK) >>
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I40E_IEEE_PFC_MBC_SHIFT);
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dcbcfg->pfc.pfccap = (u8)((buf[0] & I40E_IEEE_PFC_CAP_MASK) >>
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I40E_IEEE_PFC_CAP_SHIFT);
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dcbcfg->pfc.pfcenable = buf[1];
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}
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/**
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* i40e_parse_ieee_app_tlv
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* @tlv: IEEE 802.1Qaz APP TLV
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* @dcbcfg: Local store to update APP PRIO data
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*
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* Parses IEEE 802.1Qaz APP PRIO TLV
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**/
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static void i40e_parse_ieee_app_tlv(struct i40e_lldp_org_tlv *tlv,
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struct i40e_dcbx_config *dcbcfg)
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{
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u16 typelength;
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u16 offset = 0;
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u16 length;
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int i = 0;
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u8 *buf;
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typelength = ntohs(tlv->typelength);
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length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
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I40E_LLDP_TLV_LEN_SHIFT);
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buf = tlv->tlvinfo;
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/* The App priority table starts 5 octets after TLV header */
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length -= (sizeof(tlv->ouisubtype) + 1);
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/* Move offset to App Priority Table */
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offset++;
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/* Application Priority Table (3 octets)
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* Octets:| 1 | 2 | 3 |
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* -----------------------------------------
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* |Priority|Rsrvd| Sel | Protocol ID |
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* -----------------------------------------
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* Bits:|23 21|20 19|18 16|15 0|
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* -----------------------------------------
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*/
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while (offset < length) {
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dcbcfg->app[i].priority = (u8)((buf[offset] &
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I40E_IEEE_APP_PRIO_MASK) >>
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I40E_IEEE_APP_PRIO_SHIFT);
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dcbcfg->app[i].selector = (u8)((buf[offset] &
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I40E_IEEE_APP_SEL_MASK) >>
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I40E_IEEE_APP_SEL_SHIFT);
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dcbcfg->app[i].protocolid = (buf[offset + 1] << 0x8) |
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buf[offset + 2];
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/* Move to next app */
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offset += 3;
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i++;
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if (i >= I40E_DCBX_MAX_APPS)
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break;
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}
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dcbcfg->numapps = i;
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}
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/**
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* i40e_parse_ieee_etsrec_tlv
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* @tlv: IEEE 802.1Qaz TLV
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* @dcbcfg: Local store to update ETS REC data
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*
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* Get the TLV subtype and send it to parsing function
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* based on the subtype value
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**/
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static void i40e_parse_ieee_tlv(struct i40e_lldp_org_tlv *tlv,
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struct i40e_dcbx_config *dcbcfg)
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{
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u32 ouisubtype;
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u8 subtype;
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ouisubtype = ntohl(tlv->ouisubtype);
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subtype = (u8)((ouisubtype & I40E_LLDP_TLV_SUBTYPE_MASK) >>
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I40E_LLDP_TLV_SUBTYPE_SHIFT);
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switch (subtype) {
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case I40E_IEEE_SUBTYPE_ETS_CFG:
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i40e_parse_ieee_etscfg_tlv(tlv, dcbcfg);
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break;
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case I40E_IEEE_SUBTYPE_ETS_REC:
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i40e_parse_ieee_etsrec_tlv(tlv, dcbcfg);
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break;
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case I40E_IEEE_SUBTYPE_PFC_CFG:
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i40e_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
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break;
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case I40E_IEEE_SUBTYPE_APP_PRI:
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i40e_parse_ieee_app_tlv(tlv, dcbcfg);
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break;
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default:
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break;
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}
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}
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/**
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* i40e_parse_org_tlv
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* @tlv: Organization specific TLV
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* @dcbcfg: Local store to update ETS REC data
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*
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* Currently only IEEE 802.1Qaz TLV is supported, all others
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* will be returned
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**/
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static void i40e_parse_org_tlv(struct i40e_lldp_org_tlv *tlv,
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struct i40e_dcbx_config *dcbcfg)
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{
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u32 ouisubtype;
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u32 oui;
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ouisubtype = ntohl(tlv->ouisubtype);
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oui = (u32)((ouisubtype & I40E_LLDP_TLV_OUI_MASK) >>
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I40E_LLDP_TLV_OUI_SHIFT);
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switch (oui) {
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case I40E_IEEE_8021QAZ_OUI:
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i40e_parse_ieee_tlv(tlv, dcbcfg);
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break;
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default:
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break;
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}
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}
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/**
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* i40e_lldp_to_dcb_config
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* @lldpmib: LLDPDU to be parsed
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* @dcbcfg: store for LLDPDU data
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*
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* Parse DCB configuration from the LLDPDU
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**/
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i40e_status i40e_lldp_to_dcb_config(u8 *lldpmib,
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struct i40e_dcbx_config *dcbcfg)
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{
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i40e_status ret = 0;
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struct i40e_lldp_org_tlv *tlv;
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u16 type;
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u16 length;
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u16 typelength;
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u16 offset = 0;
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if (!lldpmib || !dcbcfg)
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return I40E_ERR_PARAM;
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/* set to the start of LLDPDU */
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lldpmib += ETH_HLEN;
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tlv = (struct i40e_lldp_org_tlv *)lldpmib;
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while (1) {
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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_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;
|
||
|
|
|
||
|
|
/* 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);
|
||
|
|
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;
|
||
|
|
|
||
|
|
if (!hw->func_caps.dcb)
|
||
|
|
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);
|
||
|
|
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;
|
||
|
|
}
|