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v6.8
  1// SPDX-License-Identifier: GPL-2.0
  2/* Copyright(c) 1999 - 2018 Intel Corporation. */
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  3
  4#include "ixgbe.h"
  5#include "ixgbe_type.h"
  6#include "ixgbe_dcb.h"
  7#include "ixgbe_dcb_82598.h"
  8
  9/**
 10 * ixgbe_dcb_config_rx_arbiter_82598 - Config Rx data arbiter
 11 * @hw: pointer to hardware structure
 12 * @refill: refill credits index by traffic class
 13 * @max: max credits index by traffic class
 14 * @prio_type: priority type indexed by traffic class
 15 *
 16 * Configure Rx Data Arbiter and credits for each traffic class.
 17 */
 18s32 ixgbe_dcb_config_rx_arbiter_82598(struct ixgbe_hw *hw,
 19					u16 *refill,
 20					u16 *max,
 21					u8 *prio_type)
 22{
 23	u32    reg           = 0;
 24	u32    credit_refill = 0;
 25	u32    credit_max    = 0;
 26	u8     i             = 0;
 27
 28	reg = IXGBE_READ_REG(hw, IXGBE_RUPPBMR) | IXGBE_RUPPBMR_MQA;
 29	IXGBE_WRITE_REG(hw, IXGBE_RUPPBMR, reg);
 30
 31	reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
 32	/* Enable Arbiter */
 33	reg &= ~IXGBE_RMCS_ARBDIS;
 34	/* Enable Receive Recycle within the BWG */
 35	reg |= IXGBE_RMCS_RRM;
 36	/* Enable Deficit Fixed Priority arbitration*/
 37	reg |= IXGBE_RMCS_DFP;
 38
 39	IXGBE_WRITE_REG(hw, IXGBE_RMCS, reg);
 40
 41	/* Configure traffic class credits and priority */
 42	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
 43		credit_refill = refill[i];
 44		credit_max    = max[i];
 45
 46		reg = credit_refill | (credit_max << IXGBE_RT2CR_MCL_SHIFT);
 47
 48		if (prio_type[i] == prio_link)
 49			reg |= IXGBE_RT2CR_LSP;
 50
 51		IXGBE_WRITE_REG(hw, IXGBE_RT2CR(i), reg);
 52	}
 53
 54	reg = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
 55	reg |= IXGBE_RDRXCTL_RDMTS_1_2;
 56	reg |= IXGBE_RDRXCTL_MPBEN;
 57	reg |= IXGBE_RDRXCTL_MCEN;
 58	IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, reg);
 59
 60	reg = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
 61	/* Make sure there is enough descriptors before arbitration */
 62	reg &= ~IXGBE_RXCTRL_DMBYPS;
 63	IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, reg);
 64
 65	return 0;
 66}
 67
 68/**
 69 * ixgbe_dcb_config_tx_desc_arbiter_82598 - Config Tx Desc. arbiter
 70 * @hw: pointer to hardware structure
 71 * @refill: refill credits index by traffic class
 72 * @max: max credits index by traffic class
 73 * @bwg_id: bandwidth grouping indexed by traffic class
 74 * @prio_type: priority type indexed by traffic class
 75 *
 76 * Configure Tx Descriptor Arbiter and credits for each traffic class.
 77 */
 78s32 ixgbe_dcb_config_tx_desc_arbiter_82598(struct ixgbe_hw *hw,
 79						u16 *refill,
 80						u16 *max,
 81						u8 *bwg_id,
 82						u8 *prio_type)
 83{
 84	u32    reg, max_credits;
 85	u8     i;
 86
 87	reg = IXGBE_READ_REG(hw, IXGBE_DPMCS);
 88
 89	/* Enable arbiter */
 90	reg &= ~IXGBE_DPMCS_ARBDIS;
 91	reg |= IXGBE_DPMCS_TSOEF;
 92
 93	/* Configure Max TSO packet size 34KB including payload and headers */
 94	reg |= (0x4 << IXGBE_DPMCS_MTSOS_SHIFT);
 95
 96	IXGBE_WRITE_REG(hw, IXGBE_DPMCS, reg);
 97
 98	/* Configure traffic class credits and priority */
 99	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
100		max_credits = max[i];
101		reg = max_credits << IXGBE_TDTQ2TCCR_MCL_SHIFT;
102		reg |= refill[i];
103		reg |= (u32)(bwg_id[i]) << IXGBE_TDTQ2TCCR_BWG_SHIFT;
104
105		if (prio_type[i] == prio_group)
106			reg |= IXGBE_TDTQ2TCCR_GSP;
107
108		if (prio_type[i] == prio_link)
109			reg |= IXGBE_TDTQ2TCCR_LSP;
110
111		IXGBE_WRITE_REG(hw, IXGBE_TDTQ2TCCR(i), reg);
112	}
113
114	return 0;
115}
116
117/**
118 * ixgbe_dcb_config_tx_data_arbiter_82598 - Config Tx data arbiter
119 * @hw: pointer to hardware structure
120 * @refill: refill credits index by traffic class
121 * @max: max credits index by traffic class
122 * @bwg_id: bandwidth grouping indexed by traffic class
123 * @prio_type: priority type indexed by traffic class
124 *
125 * Configure Tx Data Arbiter and credits for each traffic class.
126 */
127s32 ixgbe_dcb_config_tx_data_arbiter_82598(struct ixgbe_hw *hw,
128						u16 *refill,
129						u16 *max,
130						u8 *bwg_id,
131						u8 *prio_type)
132{
133	u32 reg;
134	u8 i;
135
136	reg = IXGBE_READ_REG(hw, IXGBE_PDPMCS);
137	/* Enable Data Plane Arbiter */
138	reg &= ~IXGBE_PDPMCS_ARBDIS;
139	/* Enable DFP and Transmit Recycle Mode */
140	reg |= (IXGBE_PDPMCS_TPPAC | IXGBE_PDPMCS_TRM);
141
142	IXGBE_WRITE_REG(hw, IXGBE_PDPMCS, reg);
143
144	/* Configure traffic class credits and priority */
145	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
146		reg = refill[i];
147		reg |= (u32)(max[i]) << IXGBE_TDPT2TCCR_MCL_SHIFT;
148		reg |= (u32)(bwg_id[i]) << IXGBE_TDPT2TCCR_BWG_SHIFT;
149
150		if (prio_type[i] == prio_group)
151			reg |= IXGBE_TDPT2TCCR_GSP;
152
153		if (prio_type[i] == prio_link)
154			reg |= IXGBE_TDPT2TCCR_LSP;
155
156		IXGBE_WRITE_REG(hw, IXGBE_TDPT2TCCR(i), reg);
157	}
158
159	/* Enable Tx packet buffer division */
160	reg = IXGBE_READ_REG(hw, IXGBE_DTXCTL);
161	reg |= IXGBE_DTXCTL_ENDBUBD;
162	IXGBE_WRITE_REG(hw, IXGBE_DTXCTL, reg);
163
164	return 0;
165}
166
167/**
168 * ixgbe_dcb_config_pfc_82598 - Config priority flow control
169 * @hw: pointer to hardware structure
170 * @pfc_en: enabled pfc bitmask
171 *
172 * Configure Priority Flow Control for each traffic class.
173 */
174s32 ixgbe_dcb_config_pfc_82598(struct ixgbe_hw *hw, u8 pfc_en)
175{
176	u32 fcrtl, reg;
177	u8  i;
178
179	/* Enable Transmit Priority Flow Control */
180	reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
181	reg &= ~IXGBE_RMCS_TFCE_802_3X;
182	reg |= IXGBE_RMCS_TFCE_PRIORITY;
183	IXGBE_WRITE_REG(hw, IXGBE_RMCS, reg);
184
185	/* Enable Receive Priority Flow Control */
186	reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
187	reg &= ~(IXGBE_FCTRL_RPFCE | IXGBE_FCTRL_RFCE);
188
189	if (pfc_en)
190		reg |= IXGBE_FCTRL_RPFCE;
191
192	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, reg);
193
194	/* Configure PFC Tx thresholds per TC */
195	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
196		if (!(pfc_en & BIT(i))) {
197			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0);
198			IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0);
199			continue;
200		}
201
202		fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
203		reg = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
204		IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
205		IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), reg);
206	}
207
208	/* Configure pause time */
209	reg = hw->fc.pause_time * 0x00010001;
210	for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++)
211		IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
212
213	/* Configure flow control refresh threshold value */
214	IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
215
216
217	return 0;
218}
219
220/**
221 * ixgbe_dcb_config_tc_stats_82598 - Configure traffic class statistics
222 * @hw: pointer to hardware structure
223 *
224 * Configure queue statistics registers, all queues belonging to same traffic
225 * class uses a single set of queue statistics counters.
226 */
227static s32 ixgbe_dcb_config_tc_stats_82598(struct ixgbe_hw *hw)
228{
229	u32 reg = 0;
230	u8  i   = 0;
231	u8  j   = 0;
232
233	/* Receive Queues stats setting -  8 queues per statistics reg */
234	for (i = 0, j = 0; i < 15 && j < 8; i = i + 2, j++) {
235		reg = IXGBE_READ_REG(hw, IXGBE_RQSMR(i));
236		reg |= ((0x1010101) * j);
237		IXGBE_WRITE_REG(hw, IXGBE_RQSMR(i), reg);
238		reg = IXGBE_READ_REG(hw, IXGBE_RQSMR(i + 1));
239		reg |= ((0x1010101) * j);
240		IXGBE_WRITE_REG(hw, IXGBE_RQSMR(i + 1), reg);
241	}
242	/* Transmit Queues stats setting -  4 queues per statistics reg */
243	for (i = 0; i < 8; i++) {
244		reg = IXGBE_READ_REG(hw, IXGBE_TQSMR(i));
245		reg |= ((0x1010101) * i);
246		IXGBE_WRITE_REG(hw, IXGBE_TQSMR(i), reg);
247	}
248
249	return 0;
250}
251
252/**
253 * ixgbe_dcb_hw_config_82598 - Config and enable DCB
254 * @hw: pointer to hardware structure
255 * @pfc_en: enabled pfc bitmask
256 * @refill: refill credits index by traffic class
257 * @max: max credits index by traffic class
258 * @bwg_id: bandwidth grouping indexed by traffic class
259 * @prio_type: priority type indexed by traffic class
260 *
261 * Configure dcb settings and enable dcb mode.
262 */
263s32 ixgbe_dcb_hw_config_82598(struct ixgbe_hw *hw, u8 pfc_en, u16 *refill,
264			      u16 *max, u8 *bwg_id, u8 *prio_type)
265{
266	ixgbe_dcb_config_rx_arbiter_82598(hw, refill, max, prio_type);
267	ixgbe_dcb_config_tx_desc_arbiter_82598(hw, refill, max,
268					       bwg_id, prio_type);
269	ixgbe_dcb_config_tx_data_arbiter_82598(hw, refill, max,
270					       bwg_id, prio_type);
271	ixgbe_dcb_config_pfc_82598(hw, pfc_en);
272	ixgbe_dcb_config_tc_stats_82598(hw);
273
274	return 0;
275}
v4.17
  1// SPDX-License-Identifier: GPL-2.0
  2/*******************************************************************************
  3
  4  Intel 10 Gigabit PCI Express Linux driver
  5  Copyright(c) 1999 - 2013 Intel Corporation.
  6
  7  This program is free software; you can redistribute it and/or modify it
  8  under the terms and conditions of the GNU General Public License,
  9  version 2, as published by the Free Software Foundation.
 10
 11  This program is distributed in the hope it will be useful, but WITHOUT
 12  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 13  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 14  more details.
 15
 16  You should have received a copy of the GNU General Public License along with
 17  this program; if not, write to the Free Software Foundation, Inc.,
 18  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 19
 20  The full GNU General Public License is included in this distribution in
 21  the file called "COPYING".
 22
 23  Contact Information:
 24  Linux NICS <linux.nics@intel.com>
 25  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
 26  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 27
 28*******************************************************************************/
 29
 30#include "ixgbe.h"
 31#include "ixgbe_type.h"
 32#include "ixgbe_dcb.h"
 33#include "ixgbe_dcb_82598.h"
 34
 35/**
 36 * ixgbe_dcb_config_rx_arbiter_82598 - Config Rx data arbiter
 37 * @hw: pointer to hardware structure
 38 * @refill: refill credits index by traffic class
 39 * @max: max credits index by traffic class
 40 * @prio_type: priority type indexed by traffic class
 41 *
 42 * Configure Rx Data Arbiter and credits for each traffic class.
 43 */
 44s32 ixgbe_dcb_config_rx_arbiter_82598(struct ixgbe_hw *hw,
 45					u16 *refill,
 46					u16 *max,
 47					u8 *prio_type)
 48{
 49	u32    reg           = 0;
 50	u32    credit_refill = 0;
 51	u32    credit_max    = 0;
 52	u8     i             = 0;
 53
 54	reg = IXGBE_READ_REG(hw, IXGBE_RUPPBMR) | IXGBE_RUPPBMR_MQA;
 55	IXGBE_WRITE_REG(hw, IXGBE_RUPPBMR, reg);
 56
 57	reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
 58	/* Enable Arbiter */
 59	reg &= ~IXGBE_RMCS_ARBDIS;
 60	/* Enable Receive Recycle within the BWG */
 61	reg |= IXGBE_RMCS_RRM;
 62	/* Enable Deficit Fixed Priority arbitration*/
 63	reg |= IXGBE_RMCS_DFP;
 64
 65	IXGBE_WRITE_REG(hw, IXGBE_RMCS, reg);
 66
 67	/* Configure traffic class credits and priority */
 68	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
 69		credit_refill = refill[i];
 70		credit_max    = max[i];
 71
 72		reg = credit_refill | (credit_max << IXGBE_RT2CR_MCL_SHIFT);
 73
 74		if (prio_type[i] == prio_link)
 75			reg |= IXGBE_RT2CR_LSP;
 76
 77		IXGBE_WRITE_REG(hw, IXGBE_RT2CR(i), reg);
 78	}
 79
 80	reg = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
 81	reg |= IXGBE_RDRXCTL_RDMTS_1_2;
 82	reg |= IXGBE_RDRXCTL_MPBEN;
 83	reg |= IXGBE_RDRXCTL_MCEN;
 84	IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, reg);
 85
 86	reg = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
 87	/* Make sure there is enough descriptors before arbitration */
 88	reg &= ~IXGBE_RXCTRL_DMBYPS;
 89	IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, reg);
 90
 91	return 0;
 92}
 93
 94/**
 95 * ixgbe_dcb_config_tx_desc_arbiter_82598 - Config Tx Desc. arbiter
 96 * @hw: pointer to hardware structure
 97 * @refill: refill credits index by traffic class
 98 * @max: max credits index by traffic class
 99 * @bwg_id: bandwidth grouping indexed by traffic class
100 * @prio_type: priority type indexed by traffic class
101 *
102 * Configure Tx Descriptor Arbiter and credits for each traffic class.
103 */
104s32 ixgbe_dcb_config_tx_desc_arbiter_82598(struct ixgbe_hw *hw,
105						u16 *refill,
106						u16 *max,
107						u8 *bwg_id,
108						u8 *prio_type)
109{
110	u32    reg, max_credits;
111	u8     i;
112
113	reg = IXGBE_READ_REG(hw, IXGBE_DPMCS);
114
115	/* Enable arbiter */
116	reg &= ~IXGBE_DPMCS_ARBDIS;
117	reg |= IXGBE_DPMCS_TSOEF;
118
119	/* Configure Max TSO packet size 34KB including payload and headers */
120	reg |= (0x4 << IXGBE_DPMCS_MTSOS_SHIFT);
121
122	IXGBE_WRITE_REG(hw, IXGBE_DPMCS, reg);
123
124	/* Configure traffic class credits and priority */
125	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
126		max_credits = max[i];
127		reg = max_credits << IXGBE_TDTQ2TCCR_MCL_SHIFT;
128		reg |= refill[i];
129		reg |= (u32)(bwg_id[i]) << IXGBE_TDTQ2TCCR_BWG_SHIFT;
130
131		if (prio_type[i] == prio_group)
132			reg |= IXGBE_TDTQ2TCCR_GSP;
133
134		if (prio_type[i] == prio_link)
135			reg |= IXGBE_TDTQ2TCCR_LSP;
136
137		IXGBE_WRITE_REG(hw, IXGBE_TDTQ2TCCR(i), reg);
138	}
139
140	return 0;
141}
142
143/**
144 * ixgbe_dcb_config_tx_data_arbiter_82598 - Config Tx data arbiter
145 * @hw: pointer to hardware structure
146 * @refill: refill credits index by traffic class
147 * @max: max credits index by traffic class
148 * @bwg_id: bandwidth grouping indexed by traffic class
149 * @prio_type: priority type indexed by traffic class
150 *
151 * Configure Tx Data Arbiter and credits for each traffic class.
152 */
153s32 ixgbe_dcb_config_tx_data_arbiter_82598(struct ixgbe_hw *hw,
154						u16 *refill,
155						u16 *max,
156						u8 *bwg_id,
157						u8 *prio_type)
158{
159	u32 reg;
160	u8 i;
161
162	reg = IXGBE_READ_REG(hw, IXGBE_PDPMCS);
163	/* Enable Data Plane Arbiter */
164	reg &= ~IXGBE_PDPMCS_ARBDIS;
165	/* Enable DFP and Transmit Recycle Mode */
166	reg |= (IXGBE_PDPMCS_TPPAC | IXGBE_PDPMCS_TRM);
167
168	IXGBE_WRITE_REG(hw, IXGBE_PDPMCS, reg);
169
170	/* Configure traffic class credits and priority */
171	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
172		reg = refill[i];
173		reg |= (u32)(max[i]) << IXGBE_TDPT2TCCR_MCL_SHIFT;
174		reg |= (u32)(bwg_id[i]) << IXGBE_TDPT2TCCR_BWG_SHIFT;
175
176		if (prio_type[i] == prio_group)
177			reg |= IXGBE_TDPT2TCCR_GSP;
178
179		if (prio_type[i] == prio_link)
180			reg |= IXGBE_TDPT2TCCR_LSP;
181
182		IXGBE_WRITE_REG(hw, IXGBE_TDPT2TCCR(i), reg);
183	}
184
185	/* Enable Tx packet buffer division */
186	reg = IXGBE_READ_REG(hw, IXGBE_DTXCTL);
187	reg |= IXGBE_DTXCTL_ENDBUBD;
188	IXGBE_WRITE_REG(hw, IXGBE_DTXCTL, reg);
189
190	return 0;
191}
192
193/**
194 * ixgbe_dcb_config_pfc_82598 - Config priority flow control
195 * @hw: pointer to hardware structure
196 * @pfc_en: enabled pfc bitmask
197 *
198 * Configure Priority Flow Control for each traffic class.
199 */
200s32 ixgbe_dcb_config_pfc_82598(struct ixgbe_hw *hw, u8 pfc_en)
201{
202	u32 fcrtl, reg;
203	u8  i;
204
205	/* Enable Transmit Priority Flow Control */
206	reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
207	reg &= ~IXGBE_RMCS_TFCE_802_3X;
208	reg |= IXGBE_RMCS_TFCE_PRIORITY;
209	IXGBE_WRITE_REG(hw, IXGBE_RMCS, reg);
210
211	/* Enable Receive Priority Flow Control */
212	reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
213	reg &= ~(IXGBE_FCTRL_RPFCE | IXGBE_FCTRL_RFCE);
214
215	if (pfc_en)
216		reg |= IXGBE_FCTRL_RPFCE;
217
218	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, reg);
219
220	/* Configure PFC Tx thresholds per TC */
221	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
222		if (!(pfc_en & BIT(i))) {
223			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0);
224			IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0);
225			continue;
226		}
227
228		fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
229		reg = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
230		IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
231		IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), reg);
232	}
233
234	/* Configure pause time */
235	reg = hw->fc.pause_time * 0x00010001;
236	for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++)
237		IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
238
239	/* Configure flow control refresh threshold value */
240	IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
241
242
243	return 0;
244}
245
246/**
247 * ixgbe_dcb_config_tc_stats_82598 - Configure traffic class statistics
248 * @hw: pointer to hardware structure
249 *
250 * Configure queue statistics registers, all queues belonging to same traffic
251 * class uses a single set of queue statistics counters.
252 */
253static s32 ixgbe_dcb_config_tc_stats_82598(struct ixgbe_hw *hw)
254{
255	u32 reg = 0;
256	u8  i   = 0;
257	u8  j   = 0;
258
259	/* Receive Queues stats setting -  8 queues per statistics reg */
260	for (i = 0, j = 0; i < 15 && j < 8; i = i + 2, j++) {
261		reg = IXGBE_READ_REG(hw, IXGBE_RQSMR(i));
262		reg |= ((0x1010101) * j);
263		IXGBE_WRITE_REG(hw, IXGBE_RQSMR(i), reg);
264		reg = IXGBE_READ_REG(hw, IXGBE_RQSMR(i + 1));
265		reg |= ((0x1010101) * j);
266		IXGBE_WRITE_REG(hw, IXGBE_RQSMR(i + 1), reg);
267	}
268	/* Transmit Queues stats setting -  4 queues per statistics reg */
269	for (i = 0; i < 8; i++) {
270		reg = IXGBE_READ_REG(hw, IXGBE_TQSMR(i));
271		reg |= ((0x1010101) * i);
272		IXGBE_WRITE_REG(hw, IXGBE_TQSMR(i), reg);
273	}
274
275	return 0;
276}
277
278/**
279 * ixgbe_dcb_hw_config_82598 - Config and enable DCB
280 * @hw: pointer to hardware structure
281 * @pfc_en: enabled pfc bitmask
282 * @refill: refill credits index by traffic class
283 * @max: max credits index by traffic class
284 * @bwg_id: bandwidth grouping indexed by traffic class
285 * @prio_type: priority type indexed by traffic class
286 *
287 * Configure dcb settings and enable dcb mode.
288 */
289s32 ixgbe_dcb_hw_config_82598(struct ixgbe_hw *hw, u8 pfc_en, u16 *refill,
290			      u16 *max, u8 *bwg_id, u8 *prio_type)
291{
292	ixgbe_dcb_config_rx_arbiter_82598(hw, refill, max, prio_type);
293	ixgbe_dcb_config_tx_desc_arbiter_82598(hw, refill, max,
294					       bwg_id, prio_type);
295	ixgbe_dcb_config_tx_data_arbiter_82598(hw, refill, max,
296					       bwg_id, prio_type);
297	ixgbe_dcb_config_pfc_82598(hw, pfc_en);
298	ixgbe_dcb_config_tc_stats_82598(hw);
299
300	return 0;
301}