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sys/dev/axgbe/xgbe-dcb.c
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| /* | |||||
| * AMD 10Gb Ethernet driver | |||||
| * | |||||
| * This file is available to you under your choice of the following two | |||||
| * licenses: | |||||
| * | |||||
| * License 1: GPLv2 | |||||
| * | |||||
| * Copyright (c) 2014-2016 Advanced Micro Devices, Inc. | |||||
| * | |||||
| * This file is free software; you may copy, redistribute and/or modify | |||||
| * it under the terms of the GNU General Public License as published by | |||||
| * the Free Software Foundation, either version 2 of the License, or (at | |||||
| * your option) any later version. | |||||
| * | |||||
| * This file is distributed in the hope that 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/>. | |||||
| * | |||||
| * This file incorporates work covered by the following copyright and | |||||
| * permission notice: | |||||
| * The Synopsys DWC ETHER XGMAC Software Driver and documentation | |||||
| * (hereinafter "Software") is an unsupported proprietary work of Synopsys, | |||||
| * Inc. unless otherwise expressly agreed to in writing between Synopsys | |||||
| * and you. | |||||
| * | |||||
| * The Software IS NOT an item of Licensed Software or Licensed Product | |||||
| * under any End User Software License Agreement or Agreement for Licensed | |||||
| * Product with Synopsys or any supplement thereto. Permission is hereby | |||||
| * granted, free of charge, to any person obtaining a copy of this software | |||||
| * annotated with this license and the Software, to deal in the Software | |||||
| * without restriction, including without limitation the rights to use, | |||||
| * copy, modify, merge, publish, distribute, sublicense, and/or sell copies | |||||
| * of the Software, and to permit persons to whom the Software is furnished | |||||
| * to do so, subject to the following conditions: | |||||
| * | |||||
| * The above copyright notice and this permission notice shall be included | |||||
| * in all copies or substantial portions of the Software. | |||||
| * | |||||
| * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" | |||||
| * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |||||
| * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | |||||
| * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS | |||||
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |||||
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |||||
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |||||
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |||||
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |||||
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |||||
| * THE POSSIBILITY OF SUCH DAMAGE. | |||||
| * | |||||
| * | |||||
| * License 2: Modified BSD | |||||
| * | |||||
| * Copyright (c) 2014-2016 Advanced Micro Devices, Inc. | |||||
| * All rights reserved. | |||||
| * | |||||
| * Redistribution and use in source and binary forms, with or without | |||||
| * modification, are permitted provided that the following conditions are met: | |||||
| * * Redistributions of source code must retain the above copyright | |||||
| * notice, this list of conditions and the following disclaimer. | |||||
| * * Redistributions in binary form must reproduce the above copyright | |||||
| * notice, this list of conditions and the following disclaimer in the | |||||
| * documentation and/or other materials provided with the distribution. | |||||
| * * Neither the name of Advanced Micro Devices, Inc. nor the | |||||
| * names of its contributors may be used to endorse or promote products | |||||
| * derived from this software without specific prior written permission. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |||||
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
| * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY | |||||
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |||||
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |||||
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |||||
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |||||
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |||||
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |||||
| * | |||||
| * This file incorporates work covered by the following copyright and | |||||
| * permission notice: | |||||
| * The Synopsys DWC ETHER XGMAC Software Driver and documentation | |||||
| * (hereinafter "Software") is an unsupported proprietary work of Synopsys, | |||||
| * Inc. unless otherwise expressly agreed to in writing between Synopsys | |||||
| * and you. | |||||
| * | |||||
| * The Software IS NOT an item of Licensed Software or Licensed Product | |||||
| * under any End User Software License Agreement or Agreement for Licensed | |||||
| * Product with Synopsys or any supplement thereto. Permission is hereby | |||||
| * granted, free of charge, to any person obtaining a copy of this software | |||||
| * annotated with this license and the Software, to deal in the Software | |||||
| * without restriction, including without limitation the rights to use, | |||||
| * copy, modify, merge, publish, distribute, sublicense, and/or sell copies | |||||
| * of the Software, and to permit persons to whom the Software is furnished | |||||
| * to do so, subject to the following conditions: | |||||
| * | |||||
| * The above copyright notice and this permission notice shall be included | |||||
| * in all copies or substantial portions of the Software. | |||||
| * | |||||
| * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" | |||||
| * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |||||
| * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | |||||
| * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS | |||||
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |||||
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |||||
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |||||
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |||||
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |||||
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |||||
| * THE POSSIBILITY OF SUCH DAMAGE. | |||||
| */ | |||||
| #include <sys/cdefs.h> | |||||
| __FBSDID("$FreeBSD$"); | |||||
| #include "xgbe.h" | |||||
| #if 0 | |||||
| static int xgbe_dcb_ieee_getets(struct xgbe_prv_data *pdata, | |||||
| struct ieee_ets *ets) | |||||
| { | |||||
| /* Set number of supported traffic classes */ | |||||
| ets->ets_cap = pdata->hw_feat.tc_cnt; | |||||
| if (pdata->ets) { | |||||
| ets->cbs = pdata->ets->cbs; | |||||
| memcpy(ets->tc_tx_bw, pdata->ets->tc_tx_bw, | |||||
| sizeof(ets->tc_tx_bw)); | |||||
| memcpy(ets->tc_tsa, pdata->ets->tc_tsa, | |||||
| sizeof(ets->tc_tsa)); | |||||
| memcpy(ets->prio_tc, pdata->ets->prio_tc, | |||||
| sizeof(ets->prio_tc)); | |||||
| } | |||||
| return (0); | |||||
| } | |||||
| static int xgbe_dcb_ieee_setets(struct xgbe_prv_data *pdata, | |||||
| struct ieee_ets *ets) | |||||
| { | |||||
| unsigned int i, tc_ets, tc_ets_weight; | |||||
| u8 max_tc = 0; | |||||
| tc_ets = 0; | |||||
| tc_ets_weight = 0; | |||||
| for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { | |||||
| axgbe_printf(1, | |||||
| "TC%u: tx_bw=%hhu, rx_bw=%hhu, tsa=%hhu\n", i, | |||||
| ets->tc_tx_bw[i], ets->tc_rx_bw[i], | |||||
| ets->tc_tsa[i]); | |||||
| axgbe_printf(1, "PRIO%u: TC=%hhu\n", i, | |||||
| ets->prio_tc[i]); | |||||
| max_tc = max_t(u8, max_tc, ets->prio_tc[i]); | |||||
| if ((ets->tc_tx_bw[i] || ets->tc_tsa[i])) | |||||
| max_tc = max_t(u8, max_tc, i); | |||||
| switch (ets->tc_tsa[i]) { | |||||
| case IEEE_8021QAZ_TSA_STRICT: | |||||
| break; | |||||
| case IEEE_8021QAZ_TSA_ETS: | |||||
| tc_ets = 1; | |||||
| tc_ets_weight += ets->tc_tx_bw[i]; | |||||
| break; | |||||
| default: | |||||
| axgbe_error( | |||||
| "unsupported TSA algorithm (%hhu)\n", | |||||
| ets->tc_tsa[i]); | |||||
| return (-EINVAL); | |||||
| } | |||||
| } | |||||
| /* Check maximum traffic class requested */ | |||||
| if (max_tc >= pdata->hw_feat.tc_cnt) { | |||||
| axgbe_error( | |||||
| "exceeded number of supported traffic classes\n"); | |||||
| return (-EINVAL); | |||||
| } | |||||
| /* Weights must add up to 100% */ | |||||
| if (tc_ets && (tc_ets_weight != 100)) { | |||||
| axgbe_error( | |||||
| "sum of ETS algorithm weights is not 100 (%u)\n", | |||||
| tc_ets_weight); | |||||
| return (-EINVAL); | |||||
| } | |||||
| if (!pdata->ets) { | |||||
| pdata->ets = (struct ieee_ets *)malloc(sizeof(struct ieee_ets), | |||||
| M_AXGBE, M_NOWAIT); //TODO - when to free? | |||||
| if (!pdata->ets) | |||||
| return (-ENOMEM); | |||||
| } | |||||
| pdata->num_tcs = max_tc + 1; | |||||
| memcpy(pdata->ets, ets, sizeof(*pdata->ets)); | |||||
| pdata->hw_if.config_dcb_tc(pdata); | |||||
| return (0); | |||||
| } | |||||
| static int xgbe_dcb_ieee_getpfc(struct xgbe_prv_data *pdata, | |||||
| struct ieee_pfc *pfc) | |||||
| { | |||||
| /* Set number of supported PFC traffic classes */ | |||||
| pfc->pfc_cap = pdata->hw_feat.tc_cnt; | |||||
| if (pdata->pfc) { | |||||
| pfc->pfc_en = pdata->pfc->pfc_en; | |||||
| pfc->mbc = pdata->pfc->mbc; | |||||
| pfc->delay = pdata->pfc->delay; | |||||
| } | |||||
| return (0); | |||||
| } | |||||
| static int xgbe_dcb_ieee_setpfc(struct xgbe_prv_data *pdata, | |||||
| struct ieee_pfc *pfc) | |||||
| { | |||||
| axgbe_printf(1, | |||||
| "cap=%hhu, en=%#hhx, mbc=%hhu, delay=%d\n", | |||||
| pfc->pfc_cap, pfc->pfc_en, pfc->mbc, pfc->delay); | |||||
| /* Check PFC for supported number of traffic classes */ | |||||
| if (pfc->pfc_en & ~((1 << pdata->hw_feat.tc_cnt) - 1)) { | |||||
| axgbe_error( | |||||
| "PFC requested for unsupported traffic class\n"); | |||||
| return (-EINVAL); | |||||
| } | |||||
| if (!pdata->pfc) { | |||||
| pdata->pfc = (struct ieee_pfc *)malloc(sizeof(struct ieee_pfc), | |||||
| M_AXGBE, M_NOWAIT); //TODO - when to free? | |||||
| if (!pdata->pfc) | |||||
| return (-ENOMEM); | |||||
| } | |||||
| memcpy(pdata->pfc, pfc, sizeof(*pdata->pfc)); | |||||
| pdata->hw_if.config_dcb_pfc(pdata); | |||||
| return (0); | |||||
| } | |||||
| static u8 xgbe_dcb_getdcbx(struct xgbe_prv_data *pdata) | |||||
| { | |||||
| return (DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE); | |||||
| } | |||||
| static u8 xgbe_dcb_setdcbx(struct xgbe_prv_data *pdata, u8 dcbx) | |||||
| { | |||||
| u8 support = xgbe_dcb_getdcbx(pdata); | |||||
| axgbe_printf(1, "DCBX=%#hhx\n", dcbx); | |||||
| if (dcbx & ~support) | |||||
| return (1); | |||||
| if ((dcbx & support) != support) | |||||
| return (1); | |||||
| return (0); | |||||
| } | |||||
| #endif | |||||