2   SPDX-License-Identifier: BSD-3-Clause
4   Copyright (c) 2001-2020, Intel Corporation
27   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
41  * ixgbe_dcb_get_tc_stats_82598 - Return status data for each traffic class
46  * This function returns the status data for each of the Traffic Classes in use.
62 		stats->qptc[tc] += IXGBE_READ_REG(hw, IXGBE_QPTC(tc));  in ixgbe_dcb_get_tc_stats_82598()
64 		stats->qbtc[tc] += IXGBE_READ_REG(hw, IXGBE_QBTC(tc));  in ixgbe_dcb_get_tc_stats_82598()
66 		stats->qprc[tc] += IXGBE_READ_REG(hw, IXGBE_QPRC(tc));  in ixgbe_dcb_get_tc_stats_82598()
68 		stats->qbrc[tc] += IXGBE_READ_REG(hw, IXGBE_QBRC(tc));  in ixgbe_dcb_get_tc_stats_82598()
75  * ixgbe_dcb_get_pfc_stats_82598 - Returns CBFC status data
80  * This function returns the CBFC status data for each of the Traffic Classes.
95 		stats->pxofftxc[tc] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(tc));  in ixgbe_dcb_get_pfc_stats_82598()
97 		stats->pxoffrxc[tc] += IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(tc));  in ixgbe_dcb_get_pfc_stats_82598()
104  * ixgbe_dcb_config_rx_arbiter_82598 - Config Rx data arbiter
110  * Configure Rx Data Arbiter and credits for each traffic class.
115 	u32 reg = 0;  in ixgbe_dcb_config_rx_arbiter_82598()  local
120 	reg = IXGBE_READ_REG(hw, IXGBE_RUPPBMR) | IXGBE_RUPPBMR_MQA;  in ixgbe_dcb_config_rx_arbiter_82598()
121 	IXGBE_WRITE_REG(hw, IXGBE_RUPPBMR, reg);  in ixgbe_dcb_config_rx_arbiter_82598()
123 	reg = IXGBE_READ_REG(hw, IXGBE_RMCS);  in ixgbe_dcb_config_rx_arbiter_82598()
125 	reg &= ~IXGBE_RMCS_ARBDIS;  in ixgbe_dcb_config_rx_arbiter_82598()
127 	reg |= IXGBE_RMCS_RRM;  in ixgbe_dcb_config_rx_arbiter_82598()
129 	reg |= IXGBE_RMCS_DFP;  in ixgbe_dcb_config_rx_arbiter_82598()
131 	IXGBE_WRITE_REG(hw, IXGBE_RMCS, reg);  in ixgbe_dcb_config_rx_arbiter_82598()
138 		reg = credit_refill | (credit_max << IXGBE_RT2CR_MCL_SHIFT);  in ixgbe_dcb_config_rx_arbiter_82598()
141 			reg |= IXGBE_RT2CR_LSP;  in ixgbe_dcb_config_rx_arbiter_82598()
143 		IXGBE_WRITE_REG(hw, IXGBE_RT2CR(i), reg);  in ixgbe_dcb_config_rx_arbiter_82598()
146 	reg = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);  in ixgbe_dcb_config_rx_arbiter_82598()
147 	reg |= IXGBE_RDRXCTL_RDMTS_1_2;  in ixgbe_dcb_config_rx_arbiter_82598()
148 	reg |= IXGBE_RDRXCTL_MPBEN;  in ixgbe_dcb_config_rx_arbiter_82598()
149 	reg |= IXGBE_RDRXCTL_MCEN;  in ixgbe_dcb_config_rx_arbiter_82598()
150 	IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, reg);  in ixgbe_dcb_config_rx_arbiter_82598()
152 	reg = IXGBE_READ_REG(hw, IXGBE_RXCTRL);  in ixgbe_dcb_config_rx_arbiter_82598()
154 	reg &= ~IXGBE_RXCTRL_DMBYPS;  in ixgbe_dcb_config_rx_arbiter_82598()
155 	IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, reg);  in ixgbe_dcb_config_rx_arbiter_82598()
161  * ixgbe_dcb_config_tx_desc_arbiter_82598 - Config Tx Desc. arbiter
174 	u32 reg, max_credits;  in ixgbe_dcb_config_tx_desc_arbiter_82598()  local
177 	reg = IXGBE_READ_REG(hw, IXGBE_DPMCS);  in ixgbe_dcb_config_tx_desc_arbiter_82598()
180 	reg &= ~IXGBE_DPMCS_ARBDIS;  in ixgbe_dcb_config_tx_desc_arbiter_82598()
181 	reg |= IXGBE_DPMCS_TSOEF;  in ixgbe_dcb_config_tx_desc_arbiter_82598()
184 	reg |= (0x4 << IXGBE_DPMCS_MTSOS_SHIFT);  in ixgbe_dcb_config_tx_desc_arbiter_82598()
186 	IXGBE_WRITE_REG(hw, IXGBE_DPMCS, reg);  in ixgbe_dcb_config_tx_desc_arbiter_82598()
191 		reg = max_credits << IXGBE_TDTQ2TCCR_MCL_SHIFT;  in ixgbe_dcb_config_tx_desc_arbiter_82598()
192 		reg |= (u32)(refill[i]);  in ixgbe_dcb_config_tx_desc_arbiter_82598()
193 		reg |= (u32)(bwg_id[i]) << IXGBE_TDTQ2TCCR_BWG_SHIFT;  in ixgbe_dcb_config_tx_desc_arbiter_82598()
196 			reg |= IXGBE_TDTQ2TCCR_GSP;  in ixgbe_dcb_config_tx_desc_arbiter_82598()
199 			reg |= IXGBE_TDTQ2TCCR_LSP;  in ixgbe_dcb_config_tx_desc_arbiter_82598()
201 		IXGBE_WRITE_REG(hw, IXGBE_TDTQ2TCCR(i), reg);  in ixgbe_dcb_config_tx_desc_arbiter_82598()
208  * ixgbe_dcb_config_tx_data_arbiter_82598 - Config Tx data arbiter
215  * Configure Tx Data Arbiter and credits for each traffic class.
221 	u32 reg;  in ixgbe_dcb_config_tx_data_arbiter_82598()  local
224 	reg = IXGBE_READ_REG(hw, IXGBE_PDPMCS);  in ixgbe_dcb_config_tx_data_arbiter_82598()
225 	/* Enable Data Plane Arbiter */  in ixgbe_dcb_config_tx_data_arbiter_82598()
226 	reg &= ~IXGBE_PDPMCS_ARBDIS;  in ixgbe_dcb_config_tx_data_arbiter_82598()
228 	reg |= (IXGBE_PDPMCS_TPPAC | IXGBE_PDPMCS_TRM);  in ixgbe_dcb_config_tx_data_arbiter_82598()
230 	IXGBE_WRITE_REG(hw, IXGBE_PDPMCS, reg);  in ixgbe_dcb_config_tx_data_arbiter_82598()
234 		reg = refill[i];  in ixgbe_dcb_config_tx_data_arbiter_82598()
235 		reg |= (u32)(max[i]) << IXGBE_TDPT2TCCR_MCL_SHIFT;  in ixgbe_dcb_config_tx_data_arbiter_82598()
236 		reg |= (u32)(bwg_id[i]) << IXGBE_TDPT2TCCR_BWG_SHIFT;  in ixgbe_dcb_config_tx_data_arbiter_82598()
239 			reg |= IXGBE_TDPT2TCCR_GSP;  in ixgbe_dcb_config_tx_data_arbiter_82598()
242 			reg |= IXGBE_TDPT2TCCR_LSP;  in ixgbe_dcb_config_tx_data_arbiter_82598()
244 		IXGBE_WRITE_REG(hw, IXGBE_TDPT2TCCR(i), reg);  in ixgbe_dcb_config_tx_data_arbiter_82598()
248 	reg = IXGBE_READ_REG(hw, IXGBE_DTXCTL);  in ixgbe_dcb_config_tx_data_arbiter_82598()
249 	reg |= IXGBE_DTXCTL_ENDBUBD;  in ixgbe_dcb_config_tx_data_arbiter_82598()
250 	IXGBE_WRITE_REG(hw, IXGBE_DTXCTL, reg);  in ixgbe_dcb_config_tx_data_arbiter_82598()
256  * ixgbe_dcb_config_pfc_82598 - Config priority flow control
264 	u32 fcrtl, reg;  in ixgbe_dcb_config_pfc_82598()  local
268 	reg = IXGBE_READ_REG(hw, IXGBE_RMCS);  in ixgbe_dcb_config_pfc_82598()
269 	reg &= ~IXGBE_RMCS_TFCE_802_3X;  in ixgbe_dcb_config_pfc_82598()
270 	reg |= IXGBE_RMCS_TFCE_PRIORITY;  in ixgbe_dcb_config_pfc_82598()
271 	IXGBE_WRITE_REG(hw, IXGBE_RMCS, reg);  in ixgbe_dcb_config_pfc_82598()
274 	reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);  in ixgbe_dcb_config_pfc_82598()
275 	reg &= ~(IXGBE_FCTRL_RPFCE | IXGBE_FCTRL_RFCE);  in ixgbe_dcb_config_pfc_82598()
278 		reg |= IXGBE_FCTRL_RPFCE;  in ixgbe_dcb_config_pfc_82598()
280 	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, reg);  in ixgbe_dcb_config_pfc_82598()
290 		fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;  in ixgbe_dcb_config_pfc_82598()
291 		reg = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;  in ixgbe_dcb_config_pfc_82598()
293 		IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), reg);  in ixgbe_dcb_config_pfc_82598()
297 	reg = hw->fc.pause_time | (hw->fc.pause_time << 16);  in ixgbe_dcb_config_pfc_82598()
299 		IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);  in ixgbe_dcb_config_pfc_82598()
302 	IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);  in ixgbe_dcb_config_pfc_82598()
308  * ixgbe_dcb_config_tc_stats_82598 - Configure traffic class statistics
316 	u32 reg = 0;  in ixgbe_dcb_config_tc_stats_82598()  local
320 	/* Receive Queues stats setting -  8 queues per statistics reg */  in ixgbe_dcb_config_tc_stats_82598()
322 		reg = IXGBE_READ_REG(hw, IXGBE_RQSMR(i));  in ixgbe_dcb_config_tc_stats_82598()
323 		reg |= ((0x1010101) * j);  in ixgbe_dcb_config_tc_stats_82598()
324 		IXGBE_WRITE_REG(hw, IXGBE_RQSMR(i), reg);  in ixgbe_dcb_config_tc_stats_82598()
325 		reg = IXGBE_READ_REG(hw, IXGBE_RQSMR(i + 1));  in ixgbe_dcb_config_tc_stats_82598()
326 		reg |= ((0x1010101) * j);  in ixgbe_dcb_config_tc_stats_82598()
327 		IXGBE_WRITE_REG(hw, IXGBE_RQSMR(i + 1), reg);  in ixgbe_dcb_config_tc_stats_82598()
329 	/* Transmit Queues stats setting -  4 queues per statistics reg*/  in ixgbe_dcb_config_tc_stats_82598()
331 		reg = IXGBE_READ_REG(hw, IXGBE_TQSMR(i));  in ixgbe_dcb_config_tc_stats_82598()
332 		reg |= ((0x1010101) * i);  in ixgbe_dcb_config_tc_stats_82598()
333 		IXGBE_WRITE_REG(hw, IXGBE_TQSMR(i), reg);  in ixgbe_dcb_config_tc_stats_82598()
340  * ixgbe_dcb_hw_config_82598 - Config and enable DCB