2 * AMD 10Gb Ethernet driver
4 * This file is available to you under your choice of the following two
9 * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
11 * This file is free software; you may copy, redistribute and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 2 of the License, or (at
14 * your option) any later version.
16 * This file is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * This file incorporates work covered by the following copyright and
26 * The Synopsys DWC ETHER XGMAC Software Driver and documentation
27 * (hereinafter "Software") is an unsupported proprietary work of Synopsys,
28 * Inc. unless otherwise expressly agreed to in writing between Synopsys
31 * The Software IS NOT an item of Licensed Software or Licensed Product
32 * under any End User Software License Agreement or Agreement for Licensed
33 * Product with Synopsys or any supplement thereto. Permission is hereby
34 * granted, free of charge, to any person obtaining a copy of this software
35 * annotated with this license and the Software, to deal in the Software
36 * without restriction, including without limitation the rights to use,
37 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies
38 * of the Software, and to permit persons to whom the Software is furnished
39 * to do so, subject to the following conditions:
41 * The above copyright notice and this permission notice shall be included
42 * in all copies or substantial portions of the Software.
44 * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
45 * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
46 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
47 * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
48 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
49 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
50 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
51 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
52 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
53 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
54 * THE POSSIBILITY OF SUCH DAMAGE.
57 * License 2: Modified BSD
59 * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
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78 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
79 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
80 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
81 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
82 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
84 * This file incorporates work covered by the following copyright and
86 * The Synopsys DWC ETHER XGMAC Software Driver and documentation
87 * (hereinafter "Software") is an unsupported proprietary work of Synopsys,
88 * Inc. unless otherwise expressly agreed to in writing between Synopsys
91 * The Software IS NOT an item of Licensed Software or Licensed Product
92 * under any End User Software License Agreement or Agreement for Licensed
93 * Product with Synopsys or any supplement thereto. Permission is hereby
94 * granted, free of charge, to any person obtaining a copy of this software
95 * annotated with this license and the Software, to deal in the Software
96 * without restriction, including without limitation the rights to use,
97 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies
98 * of the Software, and to permit persons to whom the Software is furnished
99 * to do so, subject to the following conditions:
101 * The above copyright notice and this permission notice shall be included
102 * in all copies or substantial portions of the Software.
104 * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
105 * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
106 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
107 * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
108 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
109 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
110 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
111 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
112 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
113 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
114 * THE POSSIBILITY OF SUCH DAMAGE.
116 #include <sys/cdefs.h>
117 __FBSDID("$FreeBSD$");
122 static int xgbe_dcb_ieee_getets(struct xgbe_prv_data *pdata,
123 struct ieee_ets *ets)
125 /* Set number of supported traffic classes */
126 ets->ets_cap = pdata->hw_feat.tc_cnt;
129 ets->cbs = pdata->ets->cbs;
130 memcpy(ets->tc_tx_bw, pdata->ets->tc_tx_bw,
131 sizeof(ets->tc_tx_bw));
132 memcpy(ets->tc_tsa, pdata->ets->tc_tsa,
133 sizeof(ets->tc_tsa));
134 memcpy(ets->prio_tc, pdata->ets->prio_tc,
135 sizeof(ets->prio_tc));
141 static int xgbe_dcb_ieee_setets(struct xgbe_prv_data *pdata,
142 struct ieee_ets *ets)
144 unsigned int i, tc_ets, tc_ets_weight;
149 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
151 "TC%u: tx_bw=%hhu, rx_bw=%hhu, tsa=%hhu\n", i,
152 ets->tc_tx_bw[i], ets->tc_rx_bw[i],
154 axgbe_printf(1, "PRIO%u: TC=%hhu\n", i,
157 max_tc = max_t(u8, max_tc, ets->prio_tc[i]);
158 if ((ets->tc_tx_bw[i] || ets->tc_tsa[i]))
159 max_tc = max_t(u8, max_tc, i);
161 switch (ets->tc_tsa[i]) {
162 case IEEE_8021QAZ_TSA_STRICT:
164 case IEEE_8021QAZ_TSA_ETS:
166 tc_ets_weight += ets->tc_tx_bw[i];
170 "unsupported TSA algorithm (%hhu)\n",
176 /* Check maximum traffic class requested */
177 if (max_tc >= pdata->hw_feat.tc_cnt) {
179 "exceeded number of supported traffic classes\n");
183 /* Weights must add up to 100% */
184 if (tc_ets && (tc_ets_weight != 100)) {
186 "sum of ETS algorithm weights is not 100 (%u)\n",
192 pdata->ets = (struct ieee_ets *)malloc(sizeof(struct ieee_ets),
193 M_AXGBE, M_NOWAIT); //TODO - when to free?
199 pdata->num_tcs = max_tc + 1;
200 memcpy(pdata->ets, ets, sizeof(*pdata->ets));
202 pdata->hw_if.config_dcb_tc(pdata);
207 static int xgbe_dcb_ieee_getpfc(struct xgbe_prv_data *pdata,
208 struct ieee_pfc *pfc)
211 /* Set number of supported PFC traffic classes */
212 pfc->pfc_cap = pdata->hw_feat.tc_cnt;
215 pfc->pfc_en = pdata->pfc->pfc_en;
216 pfc->mbc = pdata->pfc->mbc;
217 pfc->delay = pdata->pfc->delay;
223 static int xgbe_dcb_ieee_setpfc(struct xgbe_prv_data *pdata,
224 struct ieee_pfc *pfc)
228 "cap=%hhu, en=%#hhx, mbc=%hhu, delay=%d\n",
229 pfc->pfc_cap, pfc->pfc_en, pfc->mbc, pfc->delay);
231 /* Check PFC for supported number of traffic classes */
232 if (pfc->pfc_en & ~((1 << pdata->hw_feat.tc_cnt) - 1)) {
234 "PFC requested for unsupported traffic class\n");
239 pdata->pfc = (struct ieee_pfc *)malloc(sizeof(struct ieee_pfc),
240 M_AXGBE, M_NOWAIT); //TODO - when to free?
246 memcpy(pdata->pfc, pfc, sizeof(*pdata->pfc));
248 pdata->hw_if.config_dcb_pfc(pdata);
253 static u8 xgbe_dcb_getdcbx(struct xgbe_prv_data *pdata)
255 return (DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE);
258 static u8 xgbe_dcb_setdcbx(struct xgbe_prv_data *pdata, u8 dcbx)
260 u8 support = xgbe_dcb_getdcbx(pdata);
262 axgbe_printf(1, "DCBX=%#hhx\n", dcbx);
267 if ((dcbx & support) != support)