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提交 c5aa9e3b 编写于 作者: L Lendacky, Thomas 提交者： David S. Miller
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amd-xgbe: Initial AMD 10GbE platform driver 

This patch provides the initial platform driver for the AMD
10GbE device.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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drivers/net/ethernet/amd/xgbe/Makefile 0 → 100644
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obj-$(CONFIG_AMD_XGBE) += amd-xgbe.o
amd-xgbe-objs := xgbe-main.o xgbe-drv.o xgbe-dev.o \
xgbe-desc.o xgbe-ethtool.o xgbe-mdio.o
amd-xgbe-$(CONFIG_DEBUG_FS) += xgbe-debugfs.o
drivers/net/ethernet/amd/xgbe/xgbe-common.h 0 → 100644
浏览文件 @ c5aa9e3b
/*
* AMD 10Gb Ethernet driver
*
* This file is available to you under your choice of the following two
* licenses:
*
* License 1: GPLv2
*
* Copyright (c) 2014 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 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.
*/
#ifndef __XGBE_COMMON_H__
#define __XGBE_COMMON_H__
/* DMA register offsets */
#define DMA_MR 0x3000
#define DMA_SBMR 0x3004
#define DMA_ISR 0x3008
#define DMA_AXIARCR 0x3010
#define DMA_AXIAWCR 0x3018
#define DMA_DSR0 0x3020
#define DMA_DSR1 0x3024
#define DMA_DSR2 0x3028
#define DMA_DSR3 0x302c
#define DMA_DSR4 0x3030
/* DMA register entry bit positions and sizes */
#define DMA_AXIARCR_DRC_INDEX 0
#define DMA_AXIARCR_DRC_WIDTH 4
#define DMA_AXIARCR_DRD_INDEX 4
#define DMA_AXIARCR_DRD_WIDTH 2
#define DMA_AXIARCR_TEC_INDEX 8
#define DMA_AXIARCR_TEC_WIDTH 4
#define DMA_AXIARCR_TED_INDEX 12
#define DMA_AXIARCR_TED_WIDTH 2
#define DMA_AXIARCR_THC_INDEX 16
#define DMA_AXIARCR_THC_WIDTH 4
#define DMA_AXIARCR_THD_INDEX 20
#define DMA_AXIARCR_THD_WIDTH 2
#define DMA_AXIAWCR_DWC_INDEX 0
#define DMA_AXIAWCR_DWC_WIDTH 4
#define DMA_AXIAWCR_DWD_INDEX 4
#define DMA_AXIAWCR_DWD_WIDTH 2
#define DMA_AXIAWCR_RPC_INDEX 8
#define DMA_AXIAWCR_RPC_WIDTH 4
#define DMA_AXIAWCR_RPD_INDEX 12
#define DMA_AXIAWCR_RPD_WIDTH 2
#define DMA_AXIAWCR_RHC_INDEX 16
#define DMA_AXIAWCR_RHC_WIDTH 4
#define DMA_AXIAWCR_RHD_INDEX 20
#define DMA_AXIAWCR_RHD_WIDTH 2
#define DMA_AXIAWCR_TDC_INDEX 24
#define DMA_AXIAWCR_TDC_WIDTH 4
#define DMA_AXIAWCR_TDD_INDEX 28
#define DMA_AXIAWCR_TDD_WIDTH 2
#define DMA_DSR0_RPS_INDEX 8
#define DMA_DSR0_RPS_WIDTH 4
#define DMA_DSR0_TPS_INDEX 12
#define DMA_DSR0_TPS_WIDTH 4
#define DMA_ISR_MACIS_INDEX 17
#define DMA_ISR_MACIS_WIDTH 1
#define DMA_ISR_MTLIS_INDEX 16
#define DMA_ISR_MTLIS_WIDTH 1
#define DMA_MR_SWR_INDEX 0
#define DMA_MR_SWR_WIDTH 1
#define DMA_SBMR_EAME_INDEX 11
#define DMA_SBMR_EAME_WIDTH 1
#define DMA_SBMR_UNDEF_INDEX 0
#define DMA_SBMR_UNDEF_WIDTH 1
/* DMA channel register offsets
* Multiple channels can be active. The first channel has registers
* that begin at 0x3100. Each subsequent channel has registers that
* are accessed using an offset of 0x80 from the previous channel.
*/
#define DMA_CH_BASE 0x3100
#define DMA_CH_INC 0x80
#define DMA_CH_CR 0x00
#define DMA_CH_TCR 0x04
#define DMA_CH_RCR 0x08
#define DMA_CH_TDLR_HI 0x10
#define DMA_CH_TDLR_LO 0x14
#define DMA_CH_RDLR_HI 0x18
#define DMA_CH_RDLR_LO 0x1c
#define DMA_CH_TDTR_LO 0x24
#define DMA_CH_RDTR_LO 0x2c
#define DMA_CH_TDRLR 0x30
#define DMA_CH_RDRLR 0x34
#define DMA_CH_IER 0x38
#define DMA_CH_RIWT 0x3c
#define DMA_CH_CATDR_LO 0x44
#define DMA_CH_CARDR_LO 0x4c
#define DMA_CH_CATBR_HI 0x50
#define DMA_CH_CATBR_LO 0x54
#define DMA_CH_CARBR_HI 0x58
#define DMA_CH_CARBR_LO 0x5c
#define DMA_CH_SR 0x60
/* DMA channel register entry bit positions and sizes */
#define DMA_CH_CR_PBLX8_INDEX 16
#define DMA_CH_CR_PBLX8_WIDTH 1
#define DMA_CH_IER_AIE_INDEX 15
#define DMA_CH_IER_AIE_WIDTH 1
#define DMA_CH_IER_FBEE_INDEX 12
#define DMA_CH_IER_FBEE_WIDTH 1
#define DMA_CH_IER_NIE_INDEX 16
#define DMA_CH_IER_NIE_WIDTH 1
#define DMA_CH_IER_RBUE_INDEX 7
#define DMA_CH_IER_RBUE_WIDTH 1
#define DMA_CH_IER_RIE_INDEX 6
#define DMA_CH_IER_RIE_WIDTH 1
#define DMA_CH_IER_RSE_INDEX 8
#define DMA_CH_IER_RSE_WIDTH 1
#define DMA_CH_IER_TBUE_INDEX 2
#define DMA_CH_IER_TBUE_WIDTH 1
#define DMA_CH_IER_TIE_INDEX 0
#define DMA_CH_IER_TIE_WIDTH 1
#define DMA_CH_IER_TXSE_INDEX 1
#define DMA_CH_IER_TXSE_WIDTH 1
#define DMA_CH_RCR_PBL_INDEX 16
#define DMA_CH_RCR_PBL_WIDTH 6
#define DMA_CH_RCR_RBSZ_INDEX 1
#define DMA_CH_RCR_RBSZ_WIDTH 14
#define DMA_CH_RCR_SR_INDEX 0
#define DMA_CH_RCR_SR_WIDTH 1
#define DMA_CH_RIWT_RWT_INDEX 0
#define DMA_CH_RIWT_RWT_WIDTH 8
#define DMA_CH_SR_FBE_INDEX 12
#define DMA_CH_SR_FBE_WIDTH 1
#define DMA_CH_SR_RBU_INDEX 7
#define DMA_CH_SR_RBU_WIDTH 1
#define DMA_CH_SR_RI_INDEX 6
#define DMA_CH_SR_RI_WIDTH 1
#define DMA_CH_SR_RPS_INDEX 8
#define DMA_CH_SR_RPS_WIDTH 1
#define DMA_CH_SR_TBU_INDEX 2
#define DMA_CH_SR_TBU_WIDTH 1
#define DMA_CH_SR_TI_INDEX 0
#define DMA_CH_SR_TI_WIDTH 1
#define DMA_CH_SR_TPS_INDEX 1
#define DMA_CH_SR_TPS_WIDTH 1
#define DMA_CH_TCR_OSP_INDEX 4
#define DMA_CH_TCR_OSP_WIDTH 1
#define DMA_CH_TCR_PBL_INDEX 16
#define DMA_CH_TCR_PBL_WIDTH 6
#define DMA_CH_TCR_ST_INDEX 0
#define DMA_CH_TCR_ST_WIDTH 1
#define DMA_CH_TCR_TSE_INDEX 12
#define DMA_CH_TCR_TSE_WIDTH 1
/* DMA channel register values */
#define DMA_OSP_DISABLE 0x00
#define DMA_OSP_ENABLE 0x01
#define DMA_PBL_1 1
#define DMA_PBL_2 2
#define DMA_PBL_4 4
#define DMA_PBL_8 8
#define DMA_PBL_16 16
#define DMA_PBL_32 32
#define DMA_PBL_64 64 /* 8 x 8 */
#define DMA_PBL_128 128 /* 8 x 16 */
#define DMA_PBL_256 256 /* 8 x 32 */
#define DMA_PBL_X8_DISABLE 0x00
#define DMA_PBL_X8_ENABLE 0x01
/* MAC register offsets */
#define MAC_TCR 0x0000
#define MAC_RCR 0x0004
#define MAC_PFR 0x0008
#define MAC_WTR 0x000c
#define MAC_HTR0 0x0010
#define MAC_HTR1 0x0014
#define MAC_HTR2 0x0018
#define MAC_HTR3 0x001c
#define MAC_HTR4 0x0020
#define MAC_HTR5 0x0024
#define MAC_HTR6 0x0028
#define MAC_HTR7 0x002c
#define MAC_VLANTR 0x0050
#define MAC_VLANHTR 0x0058
#define MAC_VLANIR 0x0060
#define MAC_IVLANIR 0x0064
#define MAC_RETMR 0x006c
#define MAC_Q0TFCR 0x0070
#define MAC_RFCR 0x0090
#define MAC_RQC0R 0x00a0
#define MAC_RQC1R 0x00a4
#define MAC_RQC2R 0x00a8
#define MAC_RQC3R 0x00ac
#define MAC_ISR 0x00b0
#define MAC_IER 0x00b4
#define MAC_RTSR 0x00b8
#define MAC_PMTCSR 0x00c0
#define MAC_RWKPFR 0x00c4
#define MAC_LPICSR 0x00d0
#define MAC_LPITCR 0x00d4
#define MAC_VR 0x0110
#define MAC_DR 0x0114
#define MAC_HWF0R 0x011c
#define MAC_HWF1R 0x0120
#define MAC_HWF2R 0x0124
#define MAC_GPIOCR 0x0278
#define MAC_GPIOSR 0x027c
#define MAC_MACA0HR 0x0300
#define MAC_MACA0LR 0x0304
#define MAC_MACA1HR 0x0308
#define MAC_MACA1LR 0x030c
#define MAC_QTFCR_INC 4
#define MAC_MACA_INC 4
/* MAC register entry bit positions and sizes */
#define MAC_HWF0R_ADDMACADRSEL_INDEX 18
#define MAC_HWF0R_ADDMACADRSEL_WIDTH 5
#define MAC_HWF0R_ARPOFFSEL_INDEX 9
#define MAC_HWF0R_ARPOFFSEL_WIDTH 1
#define MAC_HWF0R_EEESEL_INDEX 13
#define MAC_HWF0R_EEESEL_WIDTH 1
#define MAC_HWF0R_GMIISEL_INDEX 1
#define MAC_HWF0R_GMIISEL_WIDTH 1
#define MAC_HWF0R_MGKSEL_INDEX 7
#define MAC_HWF0R_MGKSEL_WIDTH 1
#define MAC_HWF0R_MMCSEL_INDEX 8
#define MAC_HWF0R_MMCSEL_WIDTH 1
#define MAC_HWF0R_RWKSEL_INDEX 6
#define MAC_HWF0R_RWKSEL_WIDTH 1
#define MAC_HWF0R_RXCOESEL_INDEX 16
#define MAC_HWF0R_RXCOESEL_WIDTH 1
#define MAC_HWF0R_SAVLANINS_INDEX 27
#define MAC_HWF0R_SAVLANINS_WIDTH 1
#define MAC_HWF0R_SMASEL_INDEX 5
#define MAC_HWF0R_SMASEL_WIDTH 1
#define MAC_HWF0R_TSSEL_INDEX 12
#define MAC_HWF0R_TSSEL_WIDTH 1
#define MAC_HWF0R_TSSTSSEL_INDEX 25
#define MAC_HWF0R_TSSTSSEL_WIDTH 2
#define MAC_HWF0R_TXCOESEL_INDEX 14
#define MAC_HWF0R_TXCOESEL_WIDTH 1
#define MAC_HWF0R_VLHASH_INDEX 4
#define MAC_HWF0R_VLHASH_WIDTH 1
#define MAC_HWF1R_ADVTHWORD_INDEX 13
#define MAC_HWF1R_ADVTHWORD_WIDTH 1
#define MAC_HWF1R_DBGMEMA_INDEX 19
#define MAC_HWF1R_DBGMEMA_WIDTH 1
#define MAC_HWF1R_DCBEN_INDEX 16
#define MAC_HWF1R_DCBEN_WIDTH 1
#define MAC_HWF1R_HASHTBLSZ_INDEX 24
#define MAC_HWF1R_HASHTBLSZ_WIDTH 3
#define MAC_HWF1R_L3L4FNUM_INDEX 27
#define MAC_HWF1R_L3L4FNUM_WIDTH 4
#define MAC_HWF1R_RSSEN_INDEX 20
#define MAC_HWF1R_RSSEN_WIDTH 1
#define MAC_HWF1R_RXFIFOSIZE_INDEX 0
#define MAC_HWF1R_RXFIFOSIZE_WIDTH 5
#define MAC_HWF1R_SPHEN_INDEX 17
#define MAC_HWF1R_SPHEN_WIDTH 1
#define MAC_HWF1R_TSOEN_INDEX 18
#define MAC_HWF1R_TSOEN_WIDTH 1
#define MAC_HWF1R_TXFIFOSIZE_INDEX 6
#define MAC_HWF1R_TXFIFOSIZE_WIDTH 5
#define MAC_HWF2R_AUXSNAPNUM_INDEX 28
#define MAC_HWF2R_AUXSNAPNUM_WIDTH 3
#define MAC_HWF2R_PPSOUTNUM_INDEX 24
#define MAC_HWF2R_PPSOUTNUM_WIDTH 3
#define MAC_HWF2R_RXCHCNT_INDEX 12
#define MAC_HWF2R_RXCHCNT_WIDTH 4
#define MAC_HWF2R_RXQCNT_INDEX 0
#define MAC_HWF2R_RXQCNT_WIDTH 4
#define MAC_HWF2R_TXCHCNT_INDEX 18
#define MAC_HWF2R_TXCHCNT_WIDTH 4
#define MAC_HWF2R_TXQCNT_INDEX 6
#define MAC_HWF2R_TXQCNT_WIDTH 4
#define MAC_ISR_MMCRXIS_INDEX 9
#define MAC_ISR_MMCRXIS_WIDTH 1
#define MAC_ISR_MMCTXIS_INDEX 10
#define MAC_ISR_MMCTXIS_WIDTH 1
#define MAC_ISR_PMTIS_INDEX 4
#define MAC_ISR_PMTIS_WIDTH 1
#define MAC_MACA1HR_AE_INDEX 31
#define MAC_MACA1HR_AE_WIDTH 1
#define MAC_PFR_HMC_INDEX 2
#define MAC_PFR_HMC_WIDTH 1
#define MAC_PFR_HUC_INDEX 1
#define MAC_PFR_HUC_WIDTH 1
#define MAC_PFR_PM_INDEX 4
#define MAC_PFR_PM_WIDTH 1
#define MAC_PFR_PR_INDEX 0
#define MAC_PFR_PR_WIDTH 1
#define MAC_PMTCSR_MGKPKTEN_INDEX 1
#define MAC_PMTCSR_MGKPKTEN_WIDTH 1
#define MAC_PMTCSR_PWRDWN_INDEX 0
#define MAC_PMTCSR_PWRDWN_WIDTH 1
#define MAC_PMTCSR_RWKFILTRST_INDEX 31
#define MAC_PMTCSR_RWKFILTRST_WIDTH 1
#define MAC_PMTCSR_RWKPKTEN_INDEX 2
#define MAC_PMTCSR_RWKPKTEN_WIDTH 1
#define MAC_Q0TFCR_PT_INDEX 16
#define MAC_Q0TFCR_PT_WIDTH 16
#define MAC_Q0TFCR_TFE_INDEX 1
#define MAC_Q0TFCR_TFE_WIDTH 1
#define MAC_RCR_ACS_INDEX 1
#define MAC_RCR_ACS_WIDTH 1
#define MAC_RCR_CST_INDEX 2
#define MAC_RCR_CST_WIDTH 1
#define MAC_RCR_DCRCC_INDEX 3
#define MAC_RCR_DCRCC_WIDTH 1
#define MAC_RCR_IPC_INDEX 9
#define MAC_RCR_IPC_WIDTH 1
#define MAC_RCR_JE_INDEX 8
#define MAC_RCR_JE_WIDTH 1
#define MAC_RCR_LM_INDEX 10
#define MAC_RCR_LM_WIDTH 1
#define MAC_RCR_RE_INDEX 0
#define MAC_RCR_RE_WIDTH 1
#define MAC_RFCR_RFE_INDEX 0
#define MAC_RFCR_RFE_WIDTH 1
#define MAC_RQC0R_RXQ0EN_INDEX 0
#define MAC_RQC0R_RXQ0EN_WIDTH 2
#define MAC_TCR_SS_INDEX 29
#define MAC_TCR_SS_WIDTH 2
#define MAC_TCR_TE_INDEX 0
#define MAC_TCR_TE_WIDTH 1
#define MAC_VLANTR_DOVLTC_INDEX 20
#define MAC_VLANTR_DOVLTC_WIDTH 1
#define MAC_VLANTR_ERSVLM_INDEX 19
#define MAC_VLANTR_ERSVLM_WIDTH 1
#define MAC_VLANTR_ESVL_INDEX 18
#define MAC_VLANTR_ESVL_WIDTH 1
#define MAC_VLANTR_EVLS_INDEX 21
#define MAC_VLANTR_EVLS_WIDTH 2
#define MAC_VLANTR_EVLRXS_INDEX 24
#define MAC_VLANTR_EVLRXS_WIDTH 1
#define MAC_VR_DEVID_INDEX 8
#define MAC_VR_DEVID_WIDTH 8
#define MAC_VR_SNPSVER_INDEX 0
#define MAC_VR_SNPSVER_WIDTH 8
#define MAC_VR_USERVER_INDEX 16
#define MAC_VR_USERVER_WIDTH 8
/* MMC register offsets */
#define MMC_CR 0x0800
#define MMC_RISR 0x0804
#define MMC_TISR 0x0808
#define MMC_RIER 0x080c
#define MMC_TIER 0x0810
#define MMC_TXOCTETCOUNT_GB_LO 0x0814
#define MMC_TXOCTETCOUNT_GB_HI 0x0818
#define MMC_TXFRAMECOUNT_GB_LO 0x081c
#define MMC_TXFRAMECOUNT_GB_HI 0x0820
#define MMC_TXBROADCASTFRAMES_G_LO 0x0824
#define MMC_TXBROADCASTFRAMES_G_HI 0x0828
#define MMC_TXMULTICASTFRAMES_G_LO 0x082c
#define MMC_TXMULTICASTFRAMES_G_HI 0x0830
#define MMC_TX64OCTETS_GB_LO 0x0834
#define MMC_TX64OCTETS_GB_HI 0x0838
#define MMC_TX65TO127OCTETS_GB_LO 0x083c
#define MMC_TX65TO127OCTETS_GB_HI 0x0840
#define MMC_TX128TO255OCTETS_GB_LO 0x0844
#define MMC_TX128TO255OCTETS_GB_HI 0x0848
#define MMC_TX256TO511OCTETS_GB_LO 0x084c
#define MMC_TX256TO511OCTETS_GB_HI 0x0850
#define MMC_TX512TO1023OCTETS_GB_LO 0x0854
#define MMC_TX512TO1023OCTETS_GB_HI 0x0858
#define MMC_TX1024TOMAXOCTETS_GB_LO 0x085c
#define MMC_TX1024TOMAXOCTETS_GB_HI 0x0860
#define MMC_TXUNICASTFRAMES_GB_LO 0x0864
#define MMC_TXUNICASTFRAMES_GB_HI 0x0868
#define MMC_TXMULTICASTFRAMES_GB_LO 0x086c
#define MMC_TXMULTICASTFRAMES_GB_HI 0x0870
#define MMC_TXBROADCASTFRAMES_GB_LO 0x0874
#define MMC_TXBROADCASTFRAMES_GB_HI 0x0878
#define MMC_TXUNDERFLOWERROR_LO 0x087c
#define MMC_TXUNDERFLOWERROR_HI 0x0880
#define MMC_TXOCTETCOUNT_G_LO 0x0884
#define MMC_TXOCTETCOUNT_G_HI 0x0888
#define MMC_TXFRAMECOUNT_G_LO 0x088c
#define MMC_TXFRAMECOUNT_G_HI 0x0890
#define MMC_TXPAUSEFRAMES_LO 0x0894
#define MMC_TXPAUSEFRAMES_HI 0x0898
#define MMC_TXVLANFRAMES_G_LO 0x089c
#define MMC_TXVLANFRAMES_G_HI 0x08a0
#define MMC_RXFRAMECOUNT_GB_LO 0x0900
#define MMC_RXFRAMECOUNT_GB_HI 0x0904
#define MMC_RXOCTETCOUNT_GB_LO 0x0908
#define MMC_RXOCTETCOUNT_GB_HI 0x090c
#define MMC_RXOCTETCOUNT_G_LO 0x0910
#define MMC_RXOCTETCOUNT_G_HI 0x0914
#define MMC_RXBROADCASTFRAMES_G_LO 0x0918
#define MMC_RXBROADCASTFRAMES_G_HI 0x091c
#define MMC_RXMULTICASTFRAMES_G_LO 0x0920
#define MMC_RXMULTICASTFRAMES_G_HI 0x0924
#define MMC_RXCRCERROR_LO 0x0928
#define MMC_RXCRCERROR_HI 0x092c
#define MMC_RXRUNTERROR 0x0930
#define MMC_RXJABBERERROR 0x0934
#define MMC_RXUNDERSIZE_G 0x0938
#define MMC_RXOVERSIZE_G 0x093c
#define MMC_RX64OCTETS_GB_LO 0x0940
#define MMC_RX64OCTETS_GB_HI 0x0944
#define MMC_RX65TO127OCTETS_GB_LO 0x0948
#define MMC_RX65TO127OCTETS_GB_HI 0x094c
#define MMC_RX128TO255OCTETS_GB_LO 0x0950
#define MMC_RX128TO255OCTETS_GB_HI 0x0954
#define MMC_RX256TO511OCTETS_GB_LO 0x0958
#define MMC_RX256TO511OCTETS_GB_HI 0x095c
#define MMC_RX512TO1023OCTETS_GB_LO 0x0960
#define MMC_RX512TO1023OCTETS_GB_HI 0x0964
#define MMC_RX1024TOMAXOCTETS_GB_LO 0x0968
#define MMC_RX1024TOMAXOCTETS_GB_HI 0x096c
#define MMC_RXUNICASTFRAMES_G_LO 0x0970
#define MMC_RXUNICASTFRAMES_G_HI 0x0974
#define MMC_RXLENGTHERROR_LO 0x0978
#define MMC_RXLENGTHERROR_HI 0x097c
#define MMC_RXOUTOFRANGETYPE_LO 0x0980
#define MMC_RXOUTOFRANGETYPE_HI 0x0984
#define MMC_RXPAUSEFRAMES_LO 0x0988
#define MMC_RXPAUSEFRAMES_HI 0x098c
#define MMC_RXFIFOOVERFLOW_LO 0x0990
#define MMC_RXFIFOOVERFLOW_HI 0x0994
#define MMC_RXVLANFRAMES_GB_LO 0x0998
#define MMC_RXVLANFRAMES_GB_HI 0x099c
#define MMC_RXWATCHDOGERROR 0x09a0
/* MMC register entry bit positions and sizes */
#define MMC_CR_CR_INDEX 0
#define MMC_CR_CR_WIDTH 1
#define MMC_CR_CSR_INDEX 1
#define MMC_CR_CSR_WIDTH 1
#define MMC_CR_ROR_INDEX 2
#define MMC_CR_ROR_WIDTH 1
#define MMC_CR_MCF_INDEX 3
#define MMC_CR_MCF_WIDTH 1
#define MMC_CR_MCT_INDEX 4
#define MMC_CR_MCT_WIDTH 2
#define MMC_RIER_ALL_INTERRUPTS_INDEX 0
#define MMC_RIER_ALL_INTERRUPTS_WIDTH 23
#define MMC_RISR_RXFRAMECOUNT_GB_INDEX 0
#define MMC_RISR_RXFRAMECOUNT_GB_WIDTH 1
#define MMC_RISR_RXOCTETCOUNT_GB_INDEX 1
#define MMC_RISR_RXOCTETCOUNT_GB_WIDTH 1
#define MMC_RISR_RXOCTETCOUNT_G_INDEX 2
#define MMC_RISR_RXOCTETCOUNT_G_WIDTH 1
#define MMC_RISR_RXBROADCASTFRAMES_G_INDEX 3
#define MMC_RISR_RXBROADCASTFRAMES_G_WIDTH 1
#define MMC_RISR_RXMULTICASTFRAMES_G_INDEX 4
#define MMC_RISR_RXMULTICASTFRAMES_G_WIDTH 1
#define MMC_RISR_RXCRCERROR_INDEX 5
#define MMC_RISR_RXCRCERROR_WIDTH 1
#define MMC_RISR_RXRUNTERROR_INDEX 6
#define MMC_RISR_RXRUNTERROR_WIDTH 1
#define MMC_RISR_RXJABBERERROR_INDEX 7
#define MMC_RISR_RXJABBERERROR_WIDTH 1
#define MMC_RISR_RXUNDERSIZE_G_INDEX 8
#define MMC_RISR_RXUNDERSIZE_G_WIDTH 1
#define MMC_RISR_RXOVERSIZE_G_INDEX 9
#define MMC_RISR_RXOVERSIZE_G_WIDTH 1
#define MMC_RISR_RX64OCTETS_GB_INDEX 10
#define MMC_RISR_RX64OCTETS_GB_WIDTH 1
#define MMC_RISR_RX65TO127OCTETS_GB_INDEX 11
#define MMC_RISR_RX65TO127OCTETS_GB_WIDTH 1
#define MMC_RISR_RX128TO255OCTETS_GB_INDEX 12
#define MMC_RISR_RX128TO255OCTETS_GB_WIDTH 1
#define MMC_RISR_RX256TO511OCTETS_GB_INDEX 13
#define MMC_RISR_RX256TO511OCTETS_GB_WIDTH 1
#define MMC_RISR_RX512TO1023OCTETS_GB_INDEX 14
#define MMC_RISR_RX512TO1023OCTETS_GB_WIDTH 1
#define MMC_RISR_RX1024TOMAXOCTETS_GB_INDEX 15
#define MMC_RISR_RX1024TOMAXOCTETS_GB_WIDTH 1
#define MMC_RISR_RXUNICASTFRAMES_G_INDEX 16
#define MMC_RISR_RXUNICASTFRAMES_G_WIDTH 1
#define MMC_RISR_RXLENGTHERROR_INDEX 17
#define MMC_RISR_RXLENGTHERROR_WIDTH 1
#define MMC_RISR_RXOUTOFRANGETYPE_INDEX 18
#define MMC_RISR_RXOUTOFRANGETYPE_WIDTH 1
#define MMC_RISR_RXPAUSEFRAMES_INDEX 19
#define MMC_RISR_RXPAUSEFRAMES_WIDTH 1
#define MMC_RISR_RXFIFOOVERFLOW_INDEX 20
#define MMC_RISR_RXFIFOOVERFLOW_WIDTH 1
#define MMC_RISR_RXVLANFRAMES_GB_INDEX 21
#define MMC_RISR_RXVLANFRAMES_GB_WIDTH 1
#define MMC_RISR_RXWATCHDOGERROR_INDEX 22
#define MMC_RISR_RXWATCHDOGERROR_WIDTH 1
#define MMC_TIER_ALL_INTERRUPTS_INDEX 0
#define MMC_TIER_ALL_INTERRUPTS_WIDTH 18
#define MMC_TISR_TXOCTETCOUNT_GB_INDEX 0
#define MMC_TISR_TXOCTETCOUNT_GB_WIDTH 1
#define MMC_TISR_TXFRAMECOUNT_GB_INDEX 1
#define MMC_TISR_TXFRAMECOUNT_GB_WIDTH 1
#define MMC_TISR_TXBROADCASTFRAMES_G_INDEX 2
#define MMC_TISR_TXBROADCASTFRAMES_G_WIDTH 1
#define MMC_TISR_TXMULTICASTFRAMES_G_INDEX 3
#define MMC_TISR_TXMULTICASTFRAMES_G_WIDTH 1
#define MMC_TISR_TX64OCTETS_GB_INDEX 4
#define MMC_TISR_TX64OCTETS_GB_WIDTH 1
#define MMC_TISR_TX65TO127OCTETS_GB_INDEX 5
#define MMC_TISR_TX65TO127OCTETS_GB_WIDTH 1
#define MMC_TISR_TX128TO255OCTETS_GB_INDEX 6
#define MMC_TISR_TX128TO255OCTETS_GB_WIDTH 1
#define MMC_TISR_TX256TO511OCTETS_GB_INDEX 7
#define MMC_TISR_TX256TO511OCTETS_GB_WIDTH 1
#define MMC_TISR_TX512TO1023OCTETS_GB_INDEX 8
#define MMC_TISR_TX512TO1023OCTETS_GB_WIDTH 1
#define MMC_TISR_TX1024TOMAXOCTETS_GB_INDEX 9
#define MMC_TISR_TX1024TOMAXOCTETS_GB_WIDTH 1
#define MMC_TISR_TXUNICASTFRAMES_GB_INDEX 10
#define MMC_TISR_TXUNICASTFRAMES_GB_WIDTH 1
#define MMC_TISR_TXMULTICASTFRAMES_GB_INDEX 11
#define MMC_TISR_TXMULTICASTFRAMES_GB_WIDTH 1
#define MMC_TISR_TXBROADCASTFRAMES_GB_INDEX 12
#define MMC_TISR_TXBROADCASTFRAMES_GB_WIDTH 1
#define MMC_TISR_TXUNDERFLOWERROR_INDEX 13
#define MMC_TISR_TXUNDERFLOWERROR_WIDTH 1
#define MMC_TISR_TXOCTETCOUNT_G_INDEX 14
#define MMC_TISR_TXOCTETCOUNT_G_WIDTH 1
#define MMC_TISR_TXFRAMECOUNT_G_INDEX 15
#define MMC_TISR_TXFRAMECOUNT_G_WIDTH 1
#define MMC_TISR_TXPAUSEFRAMES_INDEX 16
#define MMC_TISR_TXPAUSEFRAMES_WIDTH 1
#define MMC_TISR_TXVLANFRAMES_G_INDEX 17
#define MMC_TISR_TXVLANFRAMES_G_WIDTH 1
/* MTL register offsets */
#define MTL_OMR 0x1000
#define MTL_FDCR 0x1008
#define MTL_FDSR 0x100c
#define MTL_FDDR 0x1010
#define MTL_ISR 0x1020
#define MTL_RQDCM0R 0x1030
#define MTL_TCPM0R 0x1040
#define MTL_TCPM1R 0x1044
#define MTL_RQDCM_INC 4
#define MTL_RQDCM_Q_PER_REG 4
/* MTL register entry bit positions and sizes */
#define MTL_OMR_ETSALG_INDEX 5
#define MTL_OMR_ETSALG_WIDTH 2
#define MTL_OMR_RAA_INDEX 2
#define MTL_OMR_RAA_WIDTH 1
/* MTL queue register offsets
* Multiple queues can be active. The first queue has registers
* that begin at 0x1100. Each subsequent queue has registers that
* are accessed using an offset of 0x80 from the previous queue.
*/
#define MTL_Q_BASE 0x1100
#define MTL_Q_INC 0x80
#define MTL_Q_TQOMR 0x00
#define MTL_Q_TQUR 0x04
#define MTL_Q_TQDR 0x08
#define MTL_Q_TCECR 0x10
#define MTL_Q_TCESR 0x14
#define MTL_Q_TCQWR 0x18
#define MTL_Q_RQOMR 0x40
#define MTL_Q_RQMPOCR 0x44
#define MTL_Q_RQDR 0x4c
#define MTL_Q_IER 0x70
#define MTL_Q_ISR 0x74
/* MTL queue register entry bit positions and sizes */
#define MTL_Q_TCQWR_QW_INDEX 0
#define MTL_Q_TCQWR_QW_WIDTH 21
#define MTL_Q_RQOMR_EHFC_INDEX 7
#define MTL_Q_RQOMR_EHFC_WIDTH 1
#define MTL_Q_RQOMR_RFA_INDEX 8
#define MTL_Q_RQOMR_RFA_WIDTH 3
#define MTL_Q_RQOMR_RFD_INDEX 13
#define MTL_Q_RQOMR_RFD_WIDTH 3
#define MTL_Q_RQOMR_RQS_INDEX 16
#define MTL_Q_RQOMR_RQS_WIDTH 9
#define MTL_Q_RQOMR_RSF_INDEX 5
#define MTL_Q_RQOMR_RSF_WIDTH 1
#define MTL_Q_RQOMR_RTC_INDEX 0
#define MTL_Q_RQOMR_RTC_WIDTH 2
#define MTL_Q_TQOMR_FTQ_INDEX 0
#define MTL_Q_TQOMR_FTQ_WIDTH 1
#define MTL_Q_TQOMR_TQS_INDEX 16
#define MTL_Q_TQOMR_TQS_WIDTH 10
#define MTL_Q_TQOMR_TSF_INDEX 1
#define MTL_Q_TQOMR_TSF_WIDTH 1
#define MTL_Q_TQOMR_TTC_INDEX 4
#define MTL_Q_TQOMR_TTC_WIDTH 3
#define MTL_Q_TQOMR_TXQEN_INDEX 2
#define MTL_Q_TQOMR_TXQEN_WIDTH 2
/* MTL queue register value */
#define MTL_RSF_DISABLE 0x00
#define MTL_RSF_ENABLE 0x01
#define MTL_TSF_DISABLE 0x00
#define MTL_TSF_ENABLE 0x01
#define MTL_RX_THRESHOLD_64 0x00
#define MTL_RX_THRESHOLD_96 0x02
#define MTL_RX_THRESHOLD_128 0x03
#define MTL_TX_THRESHOLD_32 0x01
#define MTL_TX_THRESHOLD_64 0x00
#define MTL_TX_THRESHOLD_96 0x02
#define MTL_TX_THRESHOLD_128 0x03
#define MTL_TX_THRESHOLD_192 0x04
#define MTL_TX_THRESHOLD_256 0x05
#define MTL_TX_THRESHOLD_384 0x06
#define MTL_TX_THRESHOLD_512 0x07
#define MTL_ETSALG_WRR 0x00
#define MTL_ETSALG_WFQ 0x01
#define MTL_ETSALG_DWRR 0x02
#define MTL_RAA_SP 0x00
#define MTL_RAA_WSP 0x01
#define MTL_Q_DISABLED 0x00
#define MTL_Q_ENABLED 0x02
/* MTL traffic class register offsets
* Multiple traffic classes can be active. The first class has registers
* that begin at 0x1100. Each subsequent queue has registers that
* are accessed using an offset of 0x80 from the previous queue.
*/
#define MTL_TC_BASE MTL_Q_BASE
#define MTL_TC_INC MTL_Q_INC
#define MTL_TC_ETSCR 0x10
/* MTL traffic class register entry bit positions and sizes */
#define MTL_TC_ETSCR_TSA_INDEX 0
#define MTL_TC_ETSCR_TSA_WIDTH 2
/* MTL traffic class register value */
#define MTL_TSA_SP 0x00
#define MTL_TSA_ETS 0x02
/* PCS MMD select register offset
* The MMD select register is used for accessing PCS registers
* when the underlying APB3 interface is using indirect addressing.
* Indirect addressing requires accessing registers in two phases,
* an address phase and a data phase. The address phases requires
* writing an address selection value to the MMD select regiesters.
*/
#define PCS_MMD_SELECT 0xff
/* Descriptor/Packet entry bit positions and sizes */
#define RX_PACKET_ERRORS_CRC_INDEX 2
#define RX_PACKET_ERRORS_CRC_WIDTH 1
#define RX_PACKET_ERRORS_FRAME_INDEX 3
#define RX_PACKET_ERRORS_FRAME_WIDTH 1
#define RX_PACKET_ERRORS_LENGTH_INDEX 0
#define RX_PACKET_ERRORS_LENGTH_WIDTH 1
#define RX_PACKET_ERRORS_OVERRUN_INDEX 1
#define RX_PACKET_ERRORS_OVERRUN_WIDTH 1
#define RX_PACKET_ATTRIBUTES_CSUM_DONE_INDEX 0
#define RX_PACKET_ATTRIBUTES_CSUM_DONE_WIDTH 1
#define RX_PACKET_ATTRIBUTES_VLAN_CTAG_INDEX 1
#define RX_PACKET_ATTRIBUTES_VLAN_CTAG_WIDTH 1
#define RX_PACKET_ATTRIBUTES_INCOMPLETE_INDEX 2
#define RX_PACKET_ATTRIBUTES_INCOMPLETE_WIDTH 1
#define RX_NORMAL_DESC0_OVT_INDEX 0
#define RX_NORMAL_DESC0_OVT_WIDTH 16
#define RX_NORMAL_DESC3_ES_INDEX 15
#define RX_NORMAL_DESC3_ES_WIDTH 1
#define RX_NORMAL_DESC3_ETLT_INDEX 16
#define RX_NORMAL_DESC3_ETLT_WIDTH 4
#define RX_NORMAL_DESC3_INTE_INDEX 30
#define RX_NORMAL_DESC3_INTE_WIDTH 1
#define RX_NORMAL_DESC3_LD_INDEX 28
#define RX_NORMAL_DESC3_LD_WIDTH 1
#define RX_NORMAL_DESC3_OWN_INDEX 31
#define RX_NORMAL_DESC3_OWN_WIDTH 1
#define RX_NORMAL_DESC3_PL_INDEX 0
#define RX_NORMAL_DESC3_PL_WIDTH 14
#define TX_PACKET_ATTRIBUTES_CSUM_ENABLE_INDEX 0
#define TX_PACKET_ATTRIBUTES_CSUM_ENABLE_WIDTH 1
#define TX_PACKET_ATTRIBUTES_TSO_ENABLE_INDEX 1
#define TX_PACKET_ATTRIBUTES_TSO_ENABLE_WIDTH 1
#define TX_PACKET_ATTRIBUTES_VLAN_CTAG_INDEX 2
#define TX_PACKET_ATTRIBUTES_VLAN_CTAG_WIDTH 1
#define TX_CONTEXT_DESC2_MSS_INDEX 0
#define TX_CONTEXT_DESC2_MSS_WIDTH 15
#define TX_CONTEXT_DESC3_CTXT_INDEX 30
#define TX_CONTEXT_DESC3_CTXT_WIDTH 1
#define TX_CONTEXT_DESC3_TCMSSV_INDEX 26
#define TX_CONTEXT_DESC3_TCMSSV_WIDTH 1
#define TX_CONTEXT_DESC3_VLTV_INDEX 16
#define TX_CONTEXT_DESC3_VLTV_WIDTH 1
#define TX_CONTEXT_DESC3_VT_INDEX 0
#define TX_CONTEXT_DESC3_VT_WIDTH 16
#define TX_NORMAL_DESC2_HL_B1L_INDEX 0
#define TX_NORMAL_DESC2_HL_B1L_WIDTH 14
#define TX_NORMAL_DESC2_IC_INDEX 31
#define TX_NORMAL_DESC2_IC_WIDTH 1
#define TX_NORMAL_DESC2_VTIR_INDEX 14
#define TX_NORMAL_DESC2_VTIR_WIDTH 2
#define TX_NORMAL_DESC3_CIC_INDEX 16
#define TX_NORMAL_DESC3_CIC_WIDTH 2
#define TX_NORMAL_DESC3_CPC_INDEX 26
#define TX_NORMAL_DESC3_CPC_WIDTH 2
#define TX_NORMAL_DESC3_CTXT_INDEX 30
#define TX_NORMAL_DESC3_CTXT_WIDTH 1
#define TX_NORMAL_DESC3_FD_INDEX 29
#define TX_NORMAL_DESC3_FD_WIDTH 1
#define TX_NORMAL_DESC3_FL_INDEX 0
#define TX_NORMAL_DESC3_FL_WIDTH 15
#define TX_NORMAL_DESC3_LD_INDEX 28
#define TX_NORMAL_DESC3_LD_WIDTH 1
#define TX_NORMAL_DESC3_OWN_INDEX 31
#define TX_NORMAL_DESC3_OWN_WIDTH 1
#define TX_NORMAL_DESC3_TCPHDRLEN_INDEX 19
#define TX_NORMAL_DESC3_TCPHDRLEN_WIDTH 4
#define TX_NORMAL_DESC3_TCPPL_INDEX 0
#define TX_NORMAL_DESC3_TCPPL_WIDTH 18
#define TX_NORMAL_DESC3_TSE_INDEX 18
#define TX_NORMAL_DESC3_TSE_WIDTH 1
#define TX_NORMAL_DESC2_VLAN_INSERT 0x2
/* MDIO undefined or vendor specific registers */
#ifndef MDIO_AN_COMP_STAT
#define MDIO_AN_COMP_STAT 0x0030
#endif
/* Bit setting and getting macros
* The get macro will extract the current bit field value from within
* the variable
*
* The set macro will clear the current bit field value within the
* variable and then set the bit field of the variable to the
* specified value
*/
#define GET_BITS(_var, _index, _width) \
(((_var) >> (_index)) & ((0x1 << (_width)) - 1))
#define SET_BITS(_var, _index, _width, _val) \
do { \
(_var) &= ~(((0x1 << (_width)) - 1) << (_index)); \
(_var) |= (((_val) & ((0x1 << (_width)) - 1)) << (_index)); \
} while (0)
#define GET_BITS_LE(_var, _index, _width) \
((le32_to_cpu((_var)) >> (_index)) & ((0x1 << (_width)) - 1))
#define SET_BITS_LE(_var, _index, _width, _val) \
do { \
(_var) &= cpu_to_le32(~(((0x1 << (_width)) - 1) << (_index))); \
(_var) |= cpu_to_le32((((_val) & \
((0x1 << (_width)) - 1)) << (_index))); \
} while (0)
/* Bit setting and getting macros based on register fields
* The get macro uses the bit field definitions formed using the input
* names to extract the current bit field value from within the
* variable
*
* The set macro uses the bit field definitions formed using the input
* names to set the bit field of the variable to the specified value
*/
#define XGMAC_GET_BITS(_var, _prefix, _field) \
GET_BITS((_var), \
_prefix##_##_field##_INDEX, \
_prefix##_##_field##_WIDTH)
#define XGMAC_SET_BITS(_var, _prefix, _field, _val) \
SET_BITS((_var), \
_prefix##_##_field##_INDEX, \
_prefix##_##_field##_WIDTH, (_val))
#define XGMAC_GET_BITS_LE(_var, _prefix, _field) \
GET_BITS_LE((_var), \
_prefix##_##_field##_INDEX, \
_prefix##_##_field##_WIDTH)
#define XGMAC_SET_BITS_LE(_var, _prefix, _field, _val) \
SET_BITS_LE((_var), \
_prefix##_##_field##_INDEX, \
_prefix##_##_field##_WIDTH, (_val))
/* Macros for reading or writing registers
* The ioread macros will get bit fields or full values using the
* register definitions formed using the input names
*
* The iowrite macros will set bit fields or full values using the
* register definitions formed using the input names
*/
#define XGMAC_IOREAD(_pdata, _reg) \
ioread32((_pdata)->xgmac_regs + _reg)
#define XGMAC_IOREAD_BITS(_pdata, _reg, _field) \
GET_BITS(XGMAC_IOREAD((_pdata), _reg), \
_reg##_##_field##_INDEX, \
_reg##_##_field##_WIDTH)
#define XGMAC_IOWRITE(_pdata, _reg, _val) \
iowrite32((_val), (_pdata)->xgmac_regs + _reg)
#define XGMAC_IOWRITE_BITS(_pdata, _reg, _field, _val) \
do { \
u32 reg_val = XGMAC_IOREAD((_pdata), _reg); \
SET_BITS(reg_val, \
_reg##_##_field##_INDEX, \
_reg##_##_field##_WIDTH, (_val)); \
XGMAC_IOWRITE((_pdata), _reg, reg_val); \
} while (0)
/* Macros for reading or writing MTL queue or traffic class registers
* Similar to the standard read and write macros except that the
* base register value is calculated by the queue or traffic class number
*/
#define XGMAC_MTL_IOREAD(_pdata, _n, _reg) \
ioread32((_pdata)->xgmac_regs + \
MTL_Q_BASE + ((_n) * MTL_Q_INC) + _reg)
#define XGMAC_MTL_IOREAD_BITS(_pdata, _n, _reg, _field) \
GET_BITS(XGMAC_MTL_IOREAD((_pdata), (_n), _reg), \
_reg##_##_field##_INDEX, \
_reg##_##_field##_WIDTH)
#define XGMAC_MTL_IOWRITE(_pdata, _n, _reg, _val) \
iowrite32((_val), (_pdata)->xgmac_regs + \
MTL_Q_BASE + ((_n) * MTL_Q_INC) + _reg)
#define XGMAC_MTL_IOWRITE_BITS(_pdata, _n, _reg, _field, _val) \
do { \
u32 reg_val = XGMAC_MTL_IOREAD((_pdata), (_n), _reg); \
SET_BITS(reg_val, \
_reg##_##_field##_INDEX, \
_reg##_##_field##_WIDTH, (_val)); \
XGMAC_MTL_IOWRITE((_pdata), (_n), _reg, reg_val); \
} while (0)
/* Macros for reading or writing DMA channel registers
* Similar to the standard read and write macros except that the
* base register value is obtained from the ring
*/
#define XGMAC_DMA_IOREAD(_channel, _reg) \
ioread32((_channel)->dma_regs + _reg)
#define XGMAC_DMA_IOREAD_BITS(_channel, _reg, _field) \
GET_BITS(XGMAC_DMA_IOREAD((_channel), _reg), \
_reg##_##_field##_INDEX, \
_reg##_##_field##_WIDTH)
#define XGMAC_DMA_IOWRITE(_channel, _reg, _val) \
iowrite32((_val), (_channel)->dma_regs + _reg)
#define XGMAC_DMA_IOWRITE_BITS(_channel, _reg, _field, _val) \
do { \
u32 reg_val = XGMAC_DMA_IOREAD((_channel), _reg); \
SET_BITS(reg_val, \
_reg##_##_field##_INDEX, \
_reg##_##_field##_WIDTH, (_val)); \
XGMAC_DMA_IOWRITE((_channel), _reg, reg_val); \
} while (0)
/* Macros for building, reading or writing register values or bits
* within the register values of XPCS registers.
*/
#define XPCS_IOWRITE(_pdata, _off, _val) \
iowrite32(_val, (_pdata)->xpcs_regs + (_off))
#define XPCS_IOREAD(_pdata, _off) \
ioread32((_pdata)->xpcs_regs + (_off))
/* Macros for building, reading or writing register values or bits
* using MDIO. Different from above because of the use of standardized
* Linux include values. No shifting is performed with the bit
* operations, everything works on mask values.
*/
#define XMDIO_READ(_pdata, _mmd, _reg) \
((_pdata)->hw_if.read_mmd_regs((_pdata), 0, \
MII_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff)))
#define XMDIO_READ_BITS(_pdata, _mmd, _reg, _mask) \
(XMDIO_READ((_pdata), _mmd, _reg) & _mask)
#define XMDIO_WRITE(_pdata, _mmd, _reg, _val) \
((_pdata)->hw_if.write_mmd_regs((_pdata), 0, \
MII_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff), (_val)))
#define XMDIO_WRITE_BITS(_pdata, _mmd, _reg, _mask, _val) \
do { \
u32 mmd_val = XMDIO_READ((_pdata), _mmd, _reg); \
mmd_val &= ~_mask; \
mmd_val |= (_val); \
XMDIO_WRITE((_pdata), _mmd, _reg, mmd_val); \
} while (0)
#endif
drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c 0 → 100644
浏览文件 @ c5aa9e3b
/*
* AMD 10Gb Ethernet driver
*
* This file is available to you under your choice of the following two
* licenses:
*
* License 1: GPLv2
*
* Copyright (c) 2014 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 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 <linux/debugfs.h>
#include <linux/module.h>
#include <linux/slab.h>
#include "xgbe.h"
#include "xgbe-common.h"
static ssize_t xgbe_common_read(char __user *buffer, size_t count,
loff_t *ppos, unsigned int value)
{
char *buf;
ssize_t len;
if (*ppos != 0)
return 0;
buf = kasprintf(GFP_KERNEL, "0x%08x\n", value);
if (!buf)
return -ENOMEM;
if (count < strlen(buf)) {
kfree(buf);
return -ENOSPC;
}
len = simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
kfree(buf);
return len;
}
static ssize_t xgbe_common_write(const char __user *buffer, size_t count,
loff_t *ppos, unsigned int *value)
{
char workarea[32];
ssize_t len;
unsigned int scan_value;
if (*ppos != 0)
return 0;
if (count >= sizeof(workarea))
return -ENOSPC;
len = simple_write_to_buffer(workarea, sizeof(workarea) - 1, ppos,
buffer, count);
if (len < 0)
return len;
workarea[len] = '\0';
if (sscanf(workarea, "%x", &scan_value) == 1)
*value = scan_value;
else
return -EIO;
return len;
}
static ssize_t xgmac_reg_addr_read(struct file *filp, char __user *buffer,
size_t count, loff_t *ppos)
{
struct xgbe_prv_data *pdata = filp->private_data;
return xgbe_common_read(buffer, count, ppos, pdata->debugfs_xgmac_reg);
}
static ssize_t xgmac_reg_addr_write(struct file *filp,
const char __user *buffer,
size_t count, loff_t *ppos)
{
struct xgbe_prv_data *pdata = filp->private_data;
return xgbe_common_write(buffer, count, ppos,
&pdata->debugfs_xgmac_reg);
}
static ssize_t xgmac_reg_value_read(struct file *filp, char __user *buffer,
size_t count, loff_t *ppos)
{
struct xgbe_prv_data *pdata = filp->private_data;
unsigned int value;
value = XGMAC_IOREAD(pdata, pdata->debugfs_xgmac_reg);
return xgbe_common_read(buffer, count, ppos, value);
}
static ssize_t xgmac_reg_value_write(struct file *filp,
const char __user *buffer,
size_t count, loff_t *ppos)
{
struct xgbe_prv_data *pdata = filp->private_data;
unsigned int value;
ssize_t len;
len = xgbe_common_write(buffer, count, ppos, &value);
if (len < 0)
return len;
XGMAC_IOWRITE(pdata, pdata->debugfs_xgmac_reg, value);
return len;
}
static const struct file_operations xgmac_reg_addr_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = xgmac_reg_addr_read,
.write = xgmac_reg_addr_write,
};
static const struct file_operations xgmac_reg_value_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = xgmac_reg_value_read,
.write = xgmac_reg_value_write,
};
static ssize_t xpcs_mmd_read(struct file *filp, char __user *buffer,
size_t count, loff_t *ppos)
{
struct xgbe_prv_data *pdata = filp->private_data;
return xgbe_common_read(buffer, count, ppos, pdata->debugfs_xpcs_mmd);
}
static ssize_t xpcs_mmd_write(struct file *filp, const char __user *buffer,
size_t count, loff_t *ppos)
{
struct xgbe_prv_data *pdata = filp->private_data;
return xgbe_common_write(buffer, count, ppos,
&pdata->debugfs_xpcs_mmd);
}
static ssize_t xpcs_reg_addr_read(struct file *filp, char __user *buffer,
size_t count, loff_t *ppos)
{
struct xgbe_prv_data *pdata = filp->private_data;
return xgbe_common_read(buffer, count, ppos, pdata->debugfs_xpcs_reg);
}
static ssize_t xpcs_reg_addr_write(struct file *filp, const char __user *buffer,
size_t count, loff_t *ppos)
{
struct xgbe_prv_data *pdata = filp->private_data;
return xgbe_common_write(buffer, count, ppos,
&pdata->debugfs_xpcs_reg);
}
static ssize_t xpcs_reg_value_read(struct file *filp, char __user *buffer,
size_t count, loff_t *ppos)
{
struct xgbe_prv_data *pdata = filp->private_data;
unsigned int value;
value = pdata->hw_if.read_mmd_regs(pdata, pdata->debugfs_xpcs_mmd,
pdata->debugfs_xpcs_reg);
return xgbe_common_read(buffer, count, ppos, value);
}
static ssize_t xpcs_reg_value_write(struct file *filp,
const char __user *buffer,
size_t count, loff_t *ppos)
{
struct xgbe_prv_data *pdata = filp->private_data;
unsigned int value;
ssize_t len;
len = xgbe_common_write(buffer, count, ppos, &value);
if (len < 0)
return len;
pdata->hw_if.write_mmd_regs(pdata, pdata->debugfs_xpcs_mmd,
pdata->debugfs_xpcs_reg, value);
return len;
}
static const struct file_operations xpcs_mmd_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = xpcs_mmd_read,
.write = xpcs_mmd_write,
};
static const struct file_operations xpcs_reg_addr_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = xpcs_reg_addr_read,
.write = xpcs_reg_addr_write,
};
static const struct file_operations xpcs_reg_value_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = xpcs_reg_value_read,
.write = xpcs_reg_value_write,
};
void xgbe_debugfs_init(struct xgbe_prv_data *pdata)
{
struct dentry *pfile;
char *buf;
/* Set defaults */
pdata->debugfs_xgmac_reg = 0;
pdata->debugfs_xpcs_mmd = 1;
pdata->debugfs_xpcs_reg = 0;
buf = kasprintf(GFP_KERNEL, "amd-xgbe-%s", pdata->netdev->name);
pdata->xgbe_debugfs = debugfs_create_dir(buf, NULL);
if (pdata->xgbe_debugfs == NULL) {
netdev_err(pdata->netdev, "debugfs_create_dir failed\n");
return;
}
pfile = debugfs_create_file("xgmac_register", 0600,
pdata->xgbe_debugfs, pdata,
&xgmac_reg_addr_fops);
if (!pfile)
netdev_err(pdata->netdev, "debugfs_create_file failed\n");
pfile = debugfs_create_file("xgmac_register_value", 0600,
pdata->xgbe_debugfs, pdata,
&xgmac_reg_value_fops);
if (!pfile)
netdev_err(pdata->netdev, "debugfs_create_file failed\n");
pfile = debugfs_create_file("xpcs_mmd", 0600,
pdata->xgbe_debugfs, pdata,
&xpcs_mmd_fops);
if (!pfile)
netdev_err(pdata->netdev, "debugfs_create_file failed\n");
pfile = debugfs_create_file("xpcs_register", 0600,
pdata->xgbe_debugfs, pdata,
&xpcs_reg_addr_fops);
if (!pfile)
netdev_err(pdata->netdev, "debugfs_create_file failed\n");
pfile = debugfs_create_file("xpcs_register_value", 0600,
pdata->xgbe_debugfs, pdata,
&xpcs_reg_value_fops);
if (!pfile)
netdev_err(pdata->netdev, "debugfs_create_file failed\n");
kfree(buf);
}
void xgbe_debugfs_exit(struct xgbe_prv_data *pdata)
{
debugfs_remove_recursive(pdata->xgbe_debugfs);
pdata->xgbe_debugfs = NULL;
}
drivers/net/ethernet/amd/xgbe/xgbe-desc.c 0 → 100644
浏览文件 @ c5aa9e3b
/*
* AMD 10Gb Ethernet driver
*
* This file is available to you under your choice of the following two
* licenses:
*
* License 1: GPLv2
*
* Copyright (c) 2014 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 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 "xgbe.h"
#include "xgbe-common.h"
static void xgbe_unmap_skb(struct xgbe_prv_data *, struct xgbe_ring_data *);
static void xgbe_free_ring(struct xgbe_prv_data *pdata,
struct xgbe_ring *ring)
{
struct xgbe_ring_data *rdata;
unsigned int i;
if (!ring)
return;
if (ring->rdata) {
for (i = 0; i < ring->rdesc_count; i++) {
rdata = GET_DESC_DATA(ring, i);
xgbe_unmap_skb(pdata, rdata);
}
kfree(ring->rdata);
ring->rdata = NULL;
}
if (ring->rdesc) {
dma_free_coherent(pdata->dev,
(sizeof(struct xgbe_ring_desc) *
ring->rdesc_count),
ring->rdesc, ring->rdesc_dma);
ring->rdesc = NULL;
}
}
static void xgbe_free_ring_resources(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
DBGPR("-->xgbe_free_ring_resources\n");
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
xgbe_free_ring(pdata, channel->tx_ring);
xgbe_free_ring(pdata, channel->rx_ring);
}
DBGPR("<--xgbe_free_ring_resources\n");
}
static int xgbe_init_ring(struct xgbe_prv_data *pdata,
struct xgbe_ring *ring, unsigned int rdesc_count)
{
DBGPR("-->xgbe_init_ring\n");
if (!ring)
return 0;
/* Descriptors */
ring->rdesc_count = rdesc_count;
ring->rdesc = dma_alloc_coherent(pdata->dev,
(sizeof(struct xgbe_ring_desc) *
rdesc_count), &ring->rdesc_dma,
GFP_KERNEL);
if (!ring->rdesc)
return -ENOMEM;
/* Descriptor information */
ring->rdata = kcalloc(rdesc_count, sizeof(struct xgbe_ring_data),
GFP_KERNEL);
if (!ring->rdata)
return -ENOMEM;
DBGPR(" rdesc=0x%p, rdesc_dma=0x%llx, rdata=0x%p\n",
ring->rdesc, ring->rdesc_dma, ring->rdata);
DBGPR("<--xgbe_init_ring\n");
return 0;
}
static int xgbe_alloc_ring_resources(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
int ret;
DBGPR("-->xgbe_alloc_ring_resources\n");
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
DBGPR(" %s - tx_ring:\n", channel->name);
ret = xgbe_init_ring(pdata, channel->tx_ring,
pdata->tx_desc_count);
if (ret) {
netdev_alert(pdata->netdev,
"error initializing Tx ring\n");
goto err_ring;
}
DBGPR(" %s - rx_ring:\n", channel->name);
ret = xgbe_init_ring(pdata, channel->rx_ring,
pdata->rx_desc_count);
if (ret) {
netdev_alert(pdata->netdev,
"error initializing Tx ring\n");
goto err_ring;
}
}
DBGPR("<--xgbe_alloc_ring_resources\n");
return 0;
err_ring:
xgbe_free_ring_resources(pdata);
return ret;
}
static void xgbe_wrapper_tx_descriptor_init(struct xgbe_prv_data *pdata)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_channel *channel;
struct xgbe_ring *ring;
struct xgbe_ring_data *rdata;
struct xgbe_ring_desc *rdesc;
dma_addr_t rdesc_dma;
unsigned int i, j;
DBGPR("-->xgbe_wrapper_tx_descriptor_init\n");
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
ring = channel->tx_ring;
if (!ring)
break;
rdesc = ring->rdesc;
rdesc_dma = ring->rdesc_dma;
for (j = 0; j < ring->rdesc_count; j++) {
rdata = GET_DESC_DATA(ring, j);
rdata->rdesc = rdesc;
rdata->rdesc_dma = rdesc_dma;
rdesc++;
rdesc_dma += sizeof(struct xgbe_ring_desc);
}
ring->cur = 0;
ring->dirty = 0;
ring->tx.queue_stopped = 0;
hw_if->tx_desc_init(channel);
}
DBGPR("<--xgbe_wrapper_tx_descriptor_init\n");
}
static void xgbe_wrapper_rx_descriptor_init(struct xgbe_prv_data *pdata)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_channel *channel;
struct xgbe_ring *ring;
struct xgbe_ring_desc *rdesc;
struct xgbe_ring_data *rdata;
dma_addr_t rdesc_dma, skb_dma;
struct sk_buff *skb = NULL;
unsigned int i, j;
DBGPR("-->xgbe_wrapper_rx_descriptor_init\n");
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
ring = channel->rx_ring;
if (!ring)
break;
rdesc = ring->rdesc;
rdesc_dma = ring->rdesc_dma;
for (j = 0; j < ring->rdesc_count; j++) {
rdata = GET_DESC_DATA(ring, j);
rdata->rdesc = rdesc;
rdata->rdesc_dma = rdesc_dma;
/* Allocate skb & assign to each rdesc */
skb = dev_alloc_skb(pdata->rx_buf_size);
if (skb == NULL)
break;
skb_dma = dma_map_single(pdata->dev, skb->data,
pdata->rx_buf_size,
DMA_FROM_DEVICE);
if (dma_mapping_error(pdata->dev, skb_dma)) {
netdev_alert(pdata->netdev,
"failed to do the dma map\n");
dev_kfree_skb_any(skb);
break;
}
rdata->skb = skb;
rdata->skb_dma = skb_dma;
rdata->skb_dma_len = pdata->rx_buf_size;
rdesc++;
rdesc_dma += sizeof(struct xgbe_ring_desc);
}
ring->cur = 0;
ring->dirty = 0;
ring->rx.realloc_index = 0;
ring->rx.realloc_threshold = 0;
hw_if->rx_desc_init(channel);
}
DBGPR("<--xgbe_wrapper_rx_descriptor_init\n");
}
static void xgbe_unmap_skb(struct xgbe_prv_data *pdata,
struct xgbe_ring_data *rdata)
{
if (rdata->skb_dma) {
if (rdata->mapped_as_page) {
dma_unmap_page(pdata->dev, rdata->skb_dma,
rdata->skb_dma_len, DMA_TO_DEVICE);
} else {
dma_unmap_single(pdata->dev, rdata->skb_dma,
rdata->skb_dma_len, DMA_TO_DEVICE);
}
rdata->skb_dma = 0;
rdata->skb_dma_len = 0;
}
if (rdata->skb) {
dev_kfree_skb_any(rdata->skb);
rdata->skb = NULL;
}
rdata->tso_header = 0;
rdata->len = 0;
rdata->interrupt = 0;
rdata->mapped_as_page = 0;
}
static int xgbe_map_tx_skb(struct xgbe_channel *channel, struct sk_buff *skb)
{
struct xgbe_prv_data *pdata = channel->pdata;
struct xgbe_ring *ring = channel->tx_ring;
struct xgbe_ring_data *rdata;
struct xgbe_packet_data *packet;
struct skb_frag_struct *frag;
dma_addr_t skb_dma;
unsigned int start_index, cur_index;
unsigned int offset, tso, vlan, datalen, len;
unsigned int i;
DBGPR("-->xgbe_map_tx_skb: cur = %d\n", ring->cur);
offset = 0;
start_index = ring->cur;
cur_index = ring->cur;
packet = &ring->packet_data;
packet->rdesc_count = 0;
packet->length = 0;
tso = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
TSO_ENABLE);
vlan = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
VLAN_CTAG);
/* Save space for a context descriptor if needed */
if ((tso && (packet->mss != ring->tx.cur_mss)) ||
(vlan && (packet->vlan_ctag != ring->tx.cur_vlan_ctag)))
cur_index++;
rdata = GET_DESC_DATA(ring, cur_index);
if (tso) {
DBGPR(" TSO packet\n");
/* Map the TSO header */
skb_dma = dma_map_single(pdata->dev, skb->data,
packet->header_len, DMA_TO_DEVICE);
if (dma_mapping_error(pdata->dev, skb_dma)) {
netdev_alert(pdata->netdev, "dma_map_single failed\n");
goto err_out;
}
rdata->skb_dma = skb_dma;
rdata->skb_dma_len = packet->header_len;
rdata->tso_header = 1;
offset = packet->header_len;
packet->length += packet->header_len;
cur_index++;
rdata = GET_DESC_DATA(ring, cur_index);
}
/* Map the (remainder of the) packet */
for (datalen = skb_headlen(skb) - offset; datalen; ) {
len = min_t(unsigned int, datalen, TX_MAX_BUF_SIZE);
skb_dma = dma_map_single(pdata->dev, skb->data + offset, len,
DMA_TO_DEVICE);
if (dma_mapping_error(pdata->dev, skb_dma)) {
netdev_alert(pdata->netdev, "dma_map_single failed\n");
goto err_out;
}
rdata->skb_dma = skb_dma;
rdata->skb_dma_len = len;
DBGPR(" skb data: index=%u, dma=0x%llx, len=%u\n",
cur_index, skb_dma, len);
datalen -= len;
offset += len;
packet->length += len;
cur_index++;
rdata = GET_DESC_DATA(ring, cur_index);
}
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
DBGPR(" mapping frag %u\n", i);
frag = &skb_shinfo(skb)->frags[i];
offset = 0;
for (datalen = skb_frag_size(frag); datalen; ) {
len = min_t(unsigned int, datalen, TX_MAX_BUF_SIZE);
skb_dma = skb_frag_dma_map(pdata->dev, frag, offset,
len, DMA_TO_DEVICE);
if (dma_mapping_error(pdata->dev, skb_dma)) {
netdev_alert(pdata->netdev,
"skb_frag_dma_map failed\n");
goto err_out;
}
rdata->skb_dma = skb_dma;
rdata->skb_dma_len = len;
rdata->mapped_as_page = 1;
DBGPR(" skb data: index=%u, dma=0x%llx, len=%u\n",
cur_index, skb_dma, len);
datalen -= len;
offset += len;
packet->length += len;
cur_index++;
rdata = GET_DESC_DATA(ring, cur_index);
}
}
/* Save the skb address in the last entry */
rdata->skb = skb;
/* Save the number of descriptor entries used */
packet->rdesc_count = cur_index - start_index;
DBGPR("<--xgbe_map_tx_skb: count=%u\n", packet->rdesc_count);
return packet->rdesc_count;
err_out:
while (start_index < cur_index) {
rdata = GET_DESC_DATA(ring, start_index++);
xgbe_unmap_skb(pdata, rdata);
}
DBGPR("<--xgbe_map_tx_skb: count=0\n");
return 0;
}
static void xgbe_realloc_skb(struct xgbe_channel *channel)
{
struct xgbe_prv_data *pdata = channel->pdata;
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_ring *ring = channel->rx_ring;
struct xgbe_ring_data *rdata;
struct sk_buff *skb = NULL;
dma_addr_t skb_dma;
int i;
DBGPR("-->xgbe_realloc_skb: rx_ring->rx.realloc_index = %u\n",
ring->rx.realloc_index);
for (i = 0; i < ring->dirty; i++) {
rdata = GET_DESC_DATA(ring, ring->rx.realloc_index);
/* Reset rdata values */
xgbe_unmap_skb(pdata, rdata);
/* Allocate skb & assign to each rdesc */
skb = dev_alloc_skb(pdata->rx_buf_size);
if (skb == NULL) {
netdev_alert(pdata->netdev,
"failed to allocate skb\n");
break;
}
skb_dma = dma_map_single(pdata->dev, skb->data,
pdata->rx_buf_size, DMA_FROM_DEVICE);
if (dma_mapping_error(pdata->dev, skb_dma)) {
netdev_alert(pdata->netdev,
"failed to do the dma map\n");
dev_kfree_skb_any(skb);
break;
}
rdata->skb = skb;
rdata->skb_dma = skb_dma;
rdata->skb_dma_len = pdata->rx_buf_size;
hw_if->rx_desc_reset(rdata);
ring->rx.realloc_index++;
}
ring->dirty = 0;
DBGPR("<--xgbe_realloc_skb\n");
}
void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *desc_if)
{
DBGPR("-->xgbe_init_function_ptrs_desc\n");
desc_if->alloc_ring_resources = xgbe_alloc_ring_resources;
desc_if->free_ring_resources = xgbe_free_ring_resources;
desc_if->map_tx_skb = xgbe_map_tx_skb;
desc_if->realloc_skb = xgbe_realloc_skb;
desc_if->unmap_skb = xgbe_unmap_skb;
desc_if->wrapper_tx_desc_init = xgbe_wrapper_tx_descriptor_init;
desc_if->wrapper_rx_desc_init = xgbe_wrapper_rx_descriptor_init;
DBGPR("<--xgbe_init_function_ptrs_desc\n");
}
drivers/net/ethernet/amd/xgbe/xgbe-dev.c 0 → 100644
浏览文件 @ c5aa9e3b
/*
* AMD 10Gb Ethernet driver
*
* This file is available to you under your choice of the following two
* licenses:
*
* License 1: GPLv2
*
* Copyright (c) 2014 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 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 <linux/phy.h>
#include <linux/clk.h>
#include <asm/cputype.h>
#include "xgbe.h"
#include "xgbe-common.h"
static unsigned int xgbe_usec_to_riwt(struct xgbe_prv_data *pdata,
unsigned int usec)
{
unsigned long rate;
unsigned int ret;
DBGPR("-->xgbe_usec_to_riwt\n");
rate = clk_get_rate(pdata->sysclock);
/*
* Convert the input usec value to the watchdog timer value. Each
* watchdog timer value is equivalent to 256 clock cycles.
* Calculate the required value as:
* ( usec * ( system_clock_mhz / 10^6 ) / 256
*/
ret = (usec * (rate / 1000000)) / 256;
DBGPR("<--xgbe_usec_to_riwt\n");
return ret;
}
static unsigned int xgbe_riwt_to_usec(struct xgbe_prv_data *pdata,
unsigned int riwt)
{
unsigned long rate;
unsigned int ret;
DBGPR("-->xgbe_riwt_to_usec\n");
rate = clk_get_rate(pdata->sysclock);
/*
* Convert the input watchdog timer value to the usec value. Each
* watchdog timer value is equivalent to 256 clock cycles.
* Calculate the required value as:
* ( riwt * 256 ) / ( system_clock_mhz / 10^6 )
*/
ret = (riwt * 256) / (rate / 1000000);
DBGPR("<--xgbe_riwt_to_usec\n");
return ret;
}
static int xgbe_config_pblx8(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++)
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_CR, PBLX8,
pdata->pblx8);
return 0;
}
static int xgbe_get_tx_pbl_val(struct xgbe_prv_data *pdata)
{
return XGMAC_DMA_IOREAD_BITS(pdata->channel, DMA_CH_TCR, PBL);
}
static int xgbe_config_tx_pbl_val(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->tx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_TCR, PBL,
pdata->tx_pbl);
}
return 0;
}
static int xgbe_get_rx_pbl_val(struct xgbe_prv_data *pdata)
{
return XGMAC_DMA_IOREAD_BITS(pdata->channel, DMA_CH_RCR, PBL);
}
static int xgbe_config_rx_pbl_val(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->rx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_RCR, PBL,
pdata->rx_pbl);
}
return 0;
}
static int xgbe_config_osp_mode(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->tx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_TCR, OSP,
pdata->tx_osp_mode);
}
return 0;
}
static int xgbe_config_rsf_mode(struct xgbe_prv_data *pdata, unsigned int val)
{
unsigned int i;
for (i = 0; i < pdata->hw_feat.rx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RSF, val);
return 0;
}
static int xgbe_config_tsf_mode(struct xgbe_prv_data *pdata, unsigned int val)
{
unsigned int i;
for (i = 0; i < pdata->hw_feat.tx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TSF, val);
return 0;
}
static int xgbe_config_rx_threshold(struct xgbe_prv_data *pdata,
unsigned int val)
{
unsigned int i;
for (i = 0; i < pdata->hw_feat.rx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RTC, val);
return 0;
}
static int xgbe_config_tx_threshold(struct xgbe_prv_data *pdata,
unsigned int val)
{
unsigned int i;
for (i = 0; i < pdata->hw_feat.tx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TTC, val);
return 0;
}
static int xgbe_config_rx_coalesce(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->rx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_RIWT, RWT,
pdata->rx_riwt);
}
return 0;
}
static int xgbe_config_tx_coalesce(struct xgbe_prv_data *pdata)
{
return 0;
}
static void xgbe_config_rx_buffer_size(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->rx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_RCR, RBSZ,
pdata->rx_buf_size);
}
}
static void xgbe_config_tso_mode(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->tx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_TCR, TSE, 1);
}
}
static int xgbe_disable_tx_flow_control(struct xgbe_prv_data *pdata)
{
unsigned int max_q_count, q_count;
unsigned int reg, reg_val;
unsigned int i;
/* Clear MTL flow control */
for (i = 0; i < pdata->hw_feat.rx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, EHFC, 0);
/* Clear MAC flow control */
max_q_count = XGMAC_MAX_FLOW_CONTROL_QUEUES;
q_count = min_t(unsigned int, pdata->hw_feat.rx_q_cnt, max_q_count);
reg = MAC_Q0TFCR;
for (i = 0; i < q_count; i++) {
reg_val = XGMAC_IOREAD(pdata, reg);
XGMAC_SET_BITS(reg_val, MAC_Q0TFCR, TFE, 0);
XGMAC_IOWRITE(pdata, reg, reg_val);
reg += MAC_QTFCR_INC;
}
return 0;
}
static int xgbe_enable_tx_flow_control(struct xgbe_prv_data *pdata)
{
unsigned int max_q_count, q_count;
unsigned int reg, reg_val;
unsigned int i;
/* Set MTL flow control */
for (i = 0; i < pdata->hw_feat.rx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, EHFC, 1);
/* Set MAC flow control */
max_q_count = XGMAC_MAX_FLOW_CONTROL_QUEUES;
q_count = min_t(unsigned int, pdata->hw_feat.rx_q_cnt, max_q_count);
reg = MAC_Q0TFCR;
for (i = 0; i < q_count; i++) {
reg_val = XGMAC_IOREAD(pdata, reg);
/* Enable transmit flow control */
XGMAC_SET_BITS(reg_val, MAC_Q0TFCR, TFE, 1);
/* Set pause time */
XGMAC_SET_BITS(reg_val, MAC_Q0TFCR, PT, 0xffff);
XGMAC_IOWRITE(pdata, reg, reg_val);
reg += MAC_QTFCR_INC;
}
return 0;
}
static int xgbe_disable_rx_flow_control(struct xgbe_prv_data *pdata)
{
XGMAC_IOWRITE_BITS(pdata, MAC_RFCR, RFE, 0);
return 0;
}
static int xgbe_enable_rx_flow_control(struct xgbe_prv_data *pdata)
{
XGMAC_IOWRITE_BITS(pdata, MAC_RFCR, RFE, 1);
return 0;
}
static int xgbe_config_tx_flow_control(struct xgbe_prv_data *pdata)
{
if (pdata->tx_pause)
xgbe_enable_tx_flow_control(pdata);
else
xgbe_disable_tx_flow_control(pdata);
return 0;
}
static int xgbe_config_rx_flow_control(struct xgbe_prv_data *pdata)
{
if (pdata->rx_pause)
xgbe_enable_rx_flow_control(pdata);
else
xgbe_disable_rx_flow_control(pdata);
return 0;
}
static void xgbe_config_flow_control(struct xgbe_prv_data *pdata)
{
xgbe_config_tx_flow_control(pdata);
xgbe_config_rx_flow_control(pdata);
}
static void xgbe_enable_dma_interrupts(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int dma_ch_isr, dma_ch_ier;
unsigned int i;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
/* Clear all the interrupts which are set */
dma_ch_isr = XGMAC_DMA_IOREAD(channel, DMA_CH_SR);
XGMAC_DMA_IOWRITE(channel, DMA_CH_SR, dma_ch_isr);
/* Clear all interrupt enable bits */
dma_ch_ier = 0;
/* Enable following interrupts
* NIE - Normal Interrupt Summary Enable
* AIE - Abnormal Interrupt Summary Enable
* FBEE - Fatal Bus Error Enable
*/
XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, NIE, 1);
XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, AIE, 1);
XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, FBEE, 1);
if (channel->tx_ring) {
/* Enable the following Tx interrupts
* TIE - Transmit Interrupt Enable (unless polling)
*/
XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TIE, 1);
}
if (channel->rx_ring) {
/* Enable following Rx interrupts
* RBUE - Receive Buffer Unavailable Enable
* RIE - Receive Interrupt Enable
*/
XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RBUE, 1);
XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RIE, 1);
}
XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, dma_ch_ier);
}
}
static void xgbe_enable_mtl_interrupts(struct xgbe_prv_data *pdata)
{
unsigned int mtl_q_isr;
unsigned int q_count, i;
q_count = max(pdata->hw_feat.tx_q_cnt, pdata->hw_feat.rx_q_cnt);
for (i = 0; i < q_count; i++) {
/* Clear all the interrupts which are set */
mtl_q_isr = XGMAC_MTL_IOREAD(pdata, i, MTL_Q_ISR);
XGMAC_MTL_IOWRITE(pdata, i, MTL_Q_ISR, mtl_q_isr);
/* No MTL interrupts to be enabled */
XGMAC_MTL_IOWRITE(pdata, i, MTL_Q_ISR, 0);
}
}
static void xgbe_enable_mac_interrupts(struct xgbe_prv_data *pdata)
{
/* No MAC interrupts to be enabled */
XGMAC_IOWRITE(pdata, MAC_IER, 0);
/* Enable all counter interrupts */
XGMAC_IOWRITE_BITS(pdata, MMC_RIER, ALL_INTERRUPTS, 0xff);
XGMAC_IOWRITE_BITS(pdata, MMC_TIER, ALL_INTERRUPTS, 0xff);
}
static int xgbe_set_gmii_speed(struct xgbe_prv_data *pdata)
{
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0x3);
return 0;
}
static int xgbe_set_gmii_2500_speed(struct xgbe_prv_data *pdata)
{
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0x2);
return 0;
}
static int xgbe_set_xgmii_speed(struct xgbe_prv_data *pdata)
{
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0);
return 0;
}
static int xgbe_set_promiscuous_mode(struct xgbe_prv_data *pdata,
unsigned int enable)
{
unsigned int val = enable ? 1 : 0;
if (XGMAC_IOREAD_BITS(pdata, MAC_PFR, PR) == val)
return 0;
DBGPR(" %s promiscuous mode\n", enable ? "entering" : "leaving");
XGMAC_IOWRITE_BITS(pdata, MAC_PFR, PR, val);
return 0;
}
static int xgbe_set_all_multicast_mode(struct xgbe_prv_data *pdata,
unsigned int enable)
{
unsigned int val = enable ? 1 : 0;
if (XGMAC_IOREAD_BITS(pdata, MAC_PFR, PM) == val)
return 0;
DBGPR(" %s allmulti mode\n", enable ? "entering" : "leaving");
XGMAC_IOWRITE_BITS(pdata, MAC_PFR, PM, val);
return 0;
}
static int xgbe_set_addn_mac_addrs(struct xgbe_prv_data *pdata,
unsigned int am_mode)
{
struct netdev_hw_addr *ha;
unsigned int mac_reg;
unsigned int mac_addr_hi, mac_addr_lo;
u8 *mac_addr;
unsigned int i;
XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HUC, 0);
XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HMC, 0);
i = 0;
mac_reg = MAC_MACA1HR;
netdev_for_each_uc_addr(ha, pdata->netdev) {
mac_addr_lo = 0;
mac_addr_hi = 0;
mac_addr = (u8 *)&mac_addr_lo;
mac_addr[0] = ha->addr[0];
mac_addr[1] = ha->addr[1];
mac_addr[2] = ha->addr[2];
mac_addr[3] = ha->addr[3];
mac_addr = (u8 *)&mac_addr_hi;
mac_addr[0] = ha->addr[4];
mac_addr[1] = ha->addr[5];
DBGPR(" adding unicast address %pM at 0x%04x\n",
ha->addr, mac_reg);
XGMAC_SET_BITS(mac_addr_hi, MAC_MACA1HR, AE, 1);
XGMAC_IOWRITE(pdata, mac_reg, mac_addr_hi);
mac_reg += MAC_MACA_INC;
XGMAC_IOWRITE(pdata, mac_reg, mac_addr_lo);
mac_reg += MAC_MACA_INC;
i++;
}
if (!am_mode) {
netdev_for_each_mc_addr(ha, pdata->netdev) {
mac_addr_lo = 0;
mac_addr_hi = 0;
mac_addr = (u8 *)&mac_addr_lo;
mac_addr[0] = ha->addr[0];
mac_addr[1] = ha->addr[1];
mac_addr[2] = ha->addr[2];
mac_addr[3] = ha->addr[3];
mac_addr = (u8 *)&mac_addr_hi;
mac_addr[0] = ha->addr[4];
mac_addr[1] = ha->addr[5];
DBGPR(" adding multicast address %pM at 0x%04x\n",
ha->addr, mac_reg);
XGMAC_SET_BITS(mac_addr_hi, MAC_MACA1HR, AE, 1);
XGMAC_IOWRITE(pdata, mac_reg, mac_addr_hi);
mac_reg += MAC_MACA_INC;
XGMAC_IOWRITE(pdata, mac_reg, mac_addr_lo);
mac_reg += MAC_MACA_INC;
i++;
}
}
/* Clear remaining additional MAC address entries */
for (; i < pdata->hw_feat.addn_mac; i++) {
XGMAC_IOWRITE(pdata, mac_reg, 0);
mac_reg += MAC_MACA_INC;
XGMAC_IOWRITE(pdata, mac_reg, 0);
mac_reg += MAC_MACA_INC;
}
return 0;
}
static int xgbe_set_mac_address(struct xgbe_prv_data *pdata, u8 *addr)
{
unsigned int mac_addr_hi, mac_addr_lo;
mac_addr_hi = (addr[5] << 8) | (addr[4] << 0);
mac_addr_lo = (addr[3] << 24) | (addr[2] << 16) |
(addr[1] << 8) | (addr[0] << 0);
XGMAC_IOWRITE(pdata, MAC_MACA0HR, mac_addr_hi);
XGMAC_IOWRITE(pdata, MAC_MACA0LR, mac_addr_lo);
return 0;
}
static int xgbe_read_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
int mmd_reg)
{
unsigned int mmd_address;
int mmd_data;
if (mmd_reg & MII_ADDR_C45)
mmd_address = mmd_reg & ~MII_ADDR_C45;
else
mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
/* The PCS registers are accessed using mmio. The underlying APB3
* management interface uses indirect addressing to access the MMD
* register sets. This requires accessing of the PCS register in two
* phases, an address phase and a data phase.
*
* The mmio interface is based on 32-bit offsets and values. All
* register offsets must therefore be adjusted by left shifting the
* offset 2 bits and reading 32 bits of data.
*/
mutex_lock(&pdata->xpcs_mutex);
XPCS_IOWRITE(pdata, PCS_MMD_SELECT << 2, mmd_address >> 8);
mmd_data = XPCS_IOREAD(pdata, (mmd_address & 0xff) << 2);
mutex_unlock(&pdata->xpcs_mutex);
return mmd_data;
}
static void xgbe_write_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
int mmd_reg, int mmd_data)
{
unsigned int mmd_address;
if (mmd_reg & MII_ADDR_C45)
mmd_address = mmd_reg & ~MII_ADDR_C45;
else
mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
/* The PCS registers are accessed using mmio. The underlying APB3
* management interface uses indirect addressing to access the MMD
* register sets. This requires accessing of the PCS register in two
* phases, an address phase and a data phase.
*
* The mmio interface is based on 32-bit offsets and values. All
* register offsets must therefore be adjusted by left shifting the
* offset 2 bits and reading 32 bits of data.
*/
mutex_lock(&pdata->xpcs_mutex);
XPCS_IOWRITE(pdata, PCS_MMD_SELECT << 2, mmd_address >> 8);
XPCS_IOWRITE(pdata, (mmd_address & 0xff) << 2, mmd_data);
mutex_unlock(&pdata->xpcs_mutex);
}
static int xgbe_tx_complete(struct xgbe_ring_desc *rdesc)
{
return !XGMAC_GET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN);
}
static int xgbe_disable_rx_csum(struct xgbe_prv_data *pdata)
{
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, IPC, 0);
return 0;
}
static int xgbe_enable_rx_csum(struct xgbe_prv_data *pdata)
{
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, IPC, 1);
return 0;
}
static int xgbe_enable_rx_vlan_stripping(struct xgbe_prv_data *pdata)
{
/* Put the VLAN tag in the Rx descriptor */
XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EVLRXS, 1);
/* Don't check the VLAN type */
XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, DOVLTC, 1);
/* Check only C-TAG (0x8100) packets */
XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ERSVLM, 0);
/* Don't consider an S-TAG (0x88A8) packet as a VLAN packet */
XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ESVL, 0);
/* Enable VLAN tag stripping */
XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EVLS, 0x3);
return 0;
}
static int xgbe_disable_rx_vlan_stripping(struct xgbe_prv_data *pdata)
{
XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EVLS, 0);
return 0;
}
static void xgbe_tx_desc_reset(struct xgbe_ring_data *rdata)
{
struct xgbe_ring_desc *rdesc = rdata->rdesc;
/* Reset the Tx descriptor
* Set buffer 1 (lo) address to zero
* Set buffer 1 (hi) address to zero
* Reset all other control bits (IC, TTSE, B2L & B1L)
* Reset all other control bits (OWN, CTXT, FD, LD, CPC, CIC, etc)
*/
rdesc->desc0 = 0;
rdesc->desc1 = 0;
rdesc->desc2 = 0;
rdesc->desc3 = 0;
}
static void xgbe_tx_desc_init(struct xgbe_channel *channel)
{
struct xgbe_ring *ring = channel->tx_ring;
struct xgbe_ring_data *rdata;
struct xgbe_ring_desc *rdesc;
int i;
int start_index = ring->cur;
DBGPR("-->tx_desc_init\n");
/* Initialze all descriptors */
for (i = 0; i < ring->rdesc_count; i++) {
rdata = GET_DESC_DATA(ring, i);
rdesc = rdata->rdesc;
/* Initialize Tx descriptor
* Set buffer 1 (lo) address to zero
* Set buffer 1 (hi) address to zero
* Reset all other control bits (IC, TTSE, B2L & B1L)
* Reset all other control bits (OWN, CTXT, FD, LD, CPC, CIC,
* etc)
*/
rdesc->desc0 = 0;
rdesc->desc1 = 0;
rdesc->desc2 = 0;
rdesc->desc3 = 0;
}
/* Make sure everything is written to the descriptor(s) before
* telling the device about them
*/
wmb();
/* Update the total number of Tx descriptors */
XGMAC_DMA_IOWRITE(channel, DMA_CH_TDRLR, ring->rdesc_count - 1);
/* Update the starting address of descriptor ring */
rdata = GET_DESC_DATA(ring, start_index);
XGMAC_DMA_IOWRITE(channel, DMA_CH_TDLR_HI,
upper_32_bits(rdata->rdesc_dma));
XGMAC_DMA_IOWRITE(channel, DMA_CH_TDLR_LO,
lower_32_bits(rdata->rdesc_dma));
DBGPR("<--tx_desc_init\n");
}
static void xgbe_rx_desc_reset(struct xgbe_ring_data *rdata)
{
struct xgbe_ring_desc *rdesc = rdata->rdesc;
/* Reset the Rx descriptor
* Set buffer 1 (lo) address to dma address (lo)
* Set buffer 1 (hi) address to dma address (hi)
* Set buffer 2 (lo) address to zero
* Set buffer 2 (hi) address to zero and set control bits
* OWN and INTE
*/
rdesc->desc0 = cpu_to_le32(lower_32_bits(rdata->skb_dma));
rdesc->desc1 = cpu_to_le32(upper_32_bits(rdata->skb_dma));
rdesc->desc2 = 0;
rdesc->desc3 = 0;
if (rdata->interrupt)
XGMAC_SET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, INTE, 1);
/* Since the Rx DMA engine is likely running, make sure everything
* is written to the descriptor(s) before setting the OWN bit
* for the descriptor
*/
wmb();
XGMAC_SET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, OWN, 1);
/* Make sure ownership is written to the descriptor */
wmb();
}
static void xgbe_rx_desc_init(struct xgbe_channel *channel)
{
struct xgbe_prv_data *pdata = channel->pdata;
struct xgbe_ring *ring = channel->rx_ring;
struct xgbe_ring_data *rdata;
struct xgbe_ring_desc *rdesc;
unsigned int start_index = ring->cur;
unsigned int rx_coalesce, rx_frames;
unsigned int i;
DBGPR("-->rx_desc_init\n");
rx_coalesce = (pdata->rx_riwt || pdata->rx_frames) ? 1 : 0;
rx_frames = pdata->rx_frames;
/* Initialize all descriptors */
for (i = 0; i < ring->rdesc_count; i++) {
rdata = GET_DESC_DATA(ring, i);
rdesc = rdata->rdesc;
/* Initialize Rx descriptor
* Set buffer 1 (lo) address to dma address (lo)
* Set buffer 1 (hi) address to dma address (hi)
* Set buffer 2 (lo) address to zero
* Set buffer 2 (hi) address to zero and set control
* bits OWN and INTE appropriateley
*/
rdesc->desc0 = cpu_to_le32(lower_32_bits(rdata->skb_dma));
rdesc->desc1 = cpu_to_le32(upper_32_bits(rdata->skb_dma));
rdesc->desc2 = 0;
rdesc->desc3 = 0;
XGMAC_SET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, OWN, 1);
XGMAC_SET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, INTE, 1);
rdata->interrupt = 1;
if (rx_coalesce && (!rx_frames || ((i + 1) % rx_frames))) {
/* Clear interrupt on completion bit */
XGMAC_SET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, INTE,
0);
rdata->interrupt = 0;
}
}
/* Make sure everything is written to the descriptors before
* telling the device about them
*/
wmb();
/* Update the total number of Rx descriptors */
XGMAC_DMA_IOWRITE(channel, DMA_CH_RDRLR, ring->rdesc_count - 1);
/* Update the starting address of descriptor ring */
rdata = GET_DESC_DATA(ring, start_index);
XGMAC_DMA_IOWRITE(channel, DMA_CH_RDLR_HI,
upper_32_bits(rdata->rdesc_dma));
XGMAC_DMA_IOWRITE(channel, DMA_CH_RDLR_LO,
lower_32_bits(rdata->rdesc_dma));
/* Update the Rx Descriptor Tail Pointer */
rdata = GET_DESC_DATA(ring, start_index + ring->rdesc_count - 1);
XGMAC_DMA_IOWRITE(channel, DMA_CH_RDTR_LO,
lower_32_bits(rdata->rdesc_dma));
DBGPR("<--rx_desc_init\n");
}
static void xgbe_pre_xmit(struct xgbe_channel *channel)
{
struct xgbe_prv_data *pdata = channel->pdata;
struct xgbe_ring *ring = channel->tx_ring;
struct xgbe_ring_data *rdata;
struct xgbe_ring_desc *rdesc;
struct xgbe_packet_data *packet = &ring->packet_data;
unsigned int csum, tso, vlan;
unsigned int tso_context, vlan_context;
unsigned int tx_coalesce, tx_frames;
int start_index = ring->cur;
int i;
DBGPR("-->xgbe_pre_xmit\n");
csum = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
CSUM_ENABLE);
tso = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
TSO_ENABLE);
vlan = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
VLAN_CTAG);
if (tso && (packet->mss != ring->tx.cur_mss))
tso_context = 1;
else
tso_context = 0;
if (vlan && (packet->vlan_ctag != ring->tx.cur_vlan_ctag))
vlan_context = 1;
else
vlan_context = 0;
tx_coalesce = (pdata->tx_usecs || pdata->tx_frames) ? 1 : 0;
tx_frames = pdata->tx_frames;
if (tx_coalesce && !channel->tx_timer_active)
ring->coalesce_count = 0;
rdata = GET_DESC_DATA(ring, ring->cur);
rdesc = rdata->rdesc;
/* Create a context descriptor if this is a TSO packet */
if (tso_context || vlan_context) {
if (tso_context) {
DBGPR(" TSO context descriptor, mss=%u\n",
packet->mss);
/* Set the MSS size */
XGMAC_SET_BITS_LE(rdesc->desc2, TX_CONTEXT_DESC2,
MSS, packet->mss);
/* Mark it as a CONTEXT descriptor */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_CONTEXT_DESC3,
CTXT, 1);
/* Indicate this descriptor contains the MSS */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_CONTEXT_DESC3,
TCMSSV, 1);
ring->tx.cur_mss = packet->mss;
}
if (vlan_context) {
DBGPR(" VLAN context descriptor, ctag=%u\n",
packet->vlan_ctag);
/* Mark it as a CONTEXT descriptor */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_CONTEXT_DESC3,
CTXT, 1);
/* Set the VLAN tag */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_CONTEXT_DESC3,
VT, packet->vlan_ctag);
/* Indicate this descriptor contains the VLAN tag */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_CONTEXT_DESC3,
VLTV, 1);
ring->tx.cur_vlan_ctag = packet->vlan_ctag;
}
ring->cur++;
rdata = GET_DESC_DATA(ring, ring->cur);
rdesc = rdata->rdesc;
}
/* Update buffer address (for TSO this is the header) */
rdesc->desc0 = cpu_to_le32(lower_32_bits(rdata->skb_dma));
rdesc->desc1 = cpu_to_le32(upper_32_bits(rdata->skb_dma));
/* Update the buffer length */
XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, HL_B1L,
rdata->skb_dma_len);
/* VLAN tag insertion check */
if (vlan)
XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, VTIR,
TX_NORMAL_DESC2_VLAN_INSERT);
/* Set IC bit based on Tx coalescing settings */
XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, IC, 1);
if (tx_coalesce && (!tx_frames ||
(++ring->coalesce_count % tx_frames)))
/* Clear IC bit */
XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, IC, 0);
/* Mark it as First Descriptor */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, FD, 1);
/* Mark it as a NORMAL descriptor */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CTXT, 0);
/* Set OWN bit if not the first descriptor */
if (ring->cur != start_index)
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN, 1);
if (tso) {
/* Enable TSO */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, TSE, 1);
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, TCPPL,
packet->tcp_payload_len);
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, TCPHDRLEN,
packet->tcp_header_len / 4);
} else {
/* Enable CRC and Pad Insertion */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CPC, 0);
/* Enable HW CSUM */
if (csum)
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3,
CIC, 0x3);
/* Set the total length to be transmitted */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, FL,
packet->length);
}
for (i = ring->cur - start_index + 1; i < packet->rdesc_count; i++) {
ring->cur++;
rdata = GET_DESC_DATA(ring, ring->cur);
rdesc = rdata->rdesc;
/* Update buffer address */
rdesc->desc0 = cpu_to_le32(lower_32_bits(rdata->skb_dma));
rdesc->desc1 = cpu_to_le32(upper_32_bits(rdata->skb_dma));
/* Update the buffer length */
XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, HL_B1L,
rdata->skb_dma_len);
/* Set IC bit based on Tx coalescing settings */
XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, IC, 1);
if (tx_coalesce && (!tx_frames ||
(++ring->coalesce_count % tx_frames)))
/* Clear IC bit */
XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, IC, 0);
/* Set OWN bit */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN, 1);
/* Mark it as NORMAL descriptor */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CTXT, 0);
/* Enable HW CSUM */
if (csum)
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3,
CIC, 0x3);
}
/* Set LAST bit for the last descriptor */
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, LD, 1);
/* In case the Tx DMA engine is running, make sure everything
* is written to the descriptor(s) before setting the OWN bit
* for the first descriptor
*/
wmb();
/* Set OWN bit for the first descriptor */
rdata = GET_DESC_DATA(ring, start_index);
rdesc = rdata->rdesc;
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN, 1);
#ifdef XGMAC_ENABLE_TX_DESC_DUMP
xgbe_dump_tx_desc(ring, start_index, packet->rdesc_count, 1);
#endif
/* Make sure ownership is written to the descriptor */
wmb();
/* Issue a poll command to Tx DMA by writing address
* of next immediate free descriptor */
ring->cur++;
rdata = GET_DESC_DATA(ring, ring->cur);
XGMAC_DMA_IOWRITE(channel, DMA_CH_TDTR_LO,
lower_32_bits(rdata->rdesc_dma));
/* Start the Tx coalescing timer */
if (tx_coalesce && !channel->tx_timer_active) {
channel->tx_timer_active = 1;
hrtimer_start(&channel->tx_timer,
ktime_set(0, pdata->tx_usecs * NSEC_PER_USEC),
HRTIMER_MODE_REL);
}
DBGPR(" %s: descriptors %u to %u written\n",
channel->name, start_index & (ring->rdesc_count - 1),
(ring->cur - 1) & (ring->rdesc_count - 1));
DBGPR("<--xgbe_pre_xmit\n");
}
static int xgbe_dev_read(struct xgbe_channel *channel)
{
struct xgbe_ring *ring = channel->rx_ring;
struct xgbe_ring_data *rdata;
struct xgbe_ring_desc *rdesc;
struct xgbe_packet_data *packet = &ring->packet_data;
unsigned int err, etlt;
DBGPR("-->xgbe_dev_read: cur = %d\n", ring->cur);
rdata = GET_DESC_DATA(ring, ring->cur);
rdesc = rdata->rdesc;
/* Check for data availability */
if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, OWN))
return 1;
#ifdef XGMAC_ENABLE_RX_DESC_DUMP
xgbe_dump_rx_desc(ring, rdesc, ring->cur);
#endif
/* Get the packet length */
rdata->len = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, PL);
if (!XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, LD)) {
/* Not all the data has been transferred for this packet */
XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
INCOMPLETE, 1);
return 0;
}
/* This is the last of the data for this packet */
XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
INCOMPLETE, 0);
/* Set checksum done indicator as appropriate */
if (channel->pdata->netdev->features & NETIF_F_RXCSUM)
XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
CSUM_DONE, 1);
/* Check for errors (only valid in last descriptor) */
err = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, ES);
etlt = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, ETLT);
DBGPR(" err=%u, etlt=%#x\n", err, etlt);
if (!err || (err && !etlt)) {
if (etlt == 0x09) {
XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
VLAN_CTAG, 1);
packet->vlan_ctag = XGMAC_GET_BITS_LE(rdesc->desc0,
RX_NORMAL_DESC0,
OVT);
DBGPR(" vlan-ctag=0x%04x\n", packet->vlan_ctag);
}
} else {
if ((etlt == 0x05) || (etlt == 0x06))
XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
CSUM_DONE, 0);
else
XGMAC_SET_BITS(packet->errors, RX_PACKET_ERRORS,
FRAME, 1);
}
DBGPR("<--xgbe_dev_read: %s - descriptor=%u (cur=%d)\n", channel->name,
ring->cur & (ring->rdesc_count - 1), ring->cur);
return 0;
}
static int xgbe_is_context_desc(struct xgbe_ring_desc *rdesc)
{
/* Rx and Tx share CTXT bit, so check TDES3.CTXT bit */
return XGMAC_GET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CTXT);
}
static int xgbe_is_last_desc(struct xgbe_ring_desc *rdesc)
{
/* Rx and Tx share LD bit, so check TDES3.LD bit */
return XGMAC_GET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, LD);
}
static void xgbe_save_interrupt_status(struct xgbe_channel *channel,
enum xgbe_int_state int_state)
{
unsigned int dma_ch_ier;
if (int_state == XGMAC_INT_STATE_SAVE) {
channel->saved_ier = XGMAC_DMA_IOREAD(channel, DMA_CH_IER);
channel->saved_ier &= DMA_INTERRUPT_MASK;
} else {
dma_ch_ier = XGMAC_DMA_IOREAD(channel, DMA_CH_IER);
dma_ch_ier |= channel->saved_ier;
XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, dma_ch_ier);
}
}
static int xgbe_enable_int(struct xgbe_channel *channel,
enum xgbe_int int_id)
{
switch (int_id) {
case XGMAC_INT_DMA_ISR_DC0IS:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, TIE, 1);
break;
case XGMAC_INT_DMA_CH_SR_TI:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, TIE, 1);
break;
case XGMAC_INT_DMA_CH_SR_TPS:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, TXSE, 1);
break;
case XGMAC_INT_DMA_CH_SR_TBU:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, TBUE, 1);
break;
case XGMAC_INT_DMA_CH_SR_RI:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, RIE, 1);
break;
case XGMAC_INT_DMA_CH_SR_RBU:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, RBUE, 1);
break;
case XGMAC_INT_DMA_CH_SR_RPS:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, RSE, 1);
break;
case XGMAC_INT_DMA_CH_SR_FBE:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, FBEE, 1);
break;
case XGMAC_INT_DMA_ALL:
xgbe_save_interrupt_status(channel, XGMAC_INT_STATE_RESTORE);
break;
default:
return -1;
}
return 0;
}
static int xgbe_disable_int(struct xgbe_channel *channel,
enum xgbe_int int_id)
{
unsigned int dma_ch_ier;
switch (int_id) {
case XGMAC_INT_DMA_ISR_DC0IS:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, TIE, 0);
break;
case XGMAC_INT_DMA_CH_SR_TI:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, TIE, 0);
break;
case XGMAC_INT_DMA_CH_SR_TPS:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, TXSE, 0);
break;
case XGMAC_INT_DMA_CH_SR_TBU:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, TBUE, 0);
break;
case XGMAC_INT_DMA_CH_SR_RI:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, RIE, 0);
break;
case XGMAC_INT_DMA_CH_SR_RBU:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, RBUE, 0);
break;
case XGMAC_INT_DMA_CH_SR_RPS:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, RSE, 0);
break;
case XGMAC_INT_DMA_CH_SR_FBE:
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_IER, FBEE, 0);
break;
case XGMAC_INT_DMA_ALL:
xgbe_save_interrupt_status(channel, XGMAC_INT_STATE_SAVE);
dma_ch_ier = XGMAC_DMA_IOREAD(channel, DMA_CH_IER);
dma_ch_ier &= ~DMA_INTERRUPT_MASK;
XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, dma_ch_ier);
break;
default:
return -1;
}
return 0;
}
static int xgbe_exit(struct xgbe_prv_data *pdata)
{
unsigned int count = 2000;
DBGPR("-->xgbe_exit\n");
/* Issue a software reset */
XGMAC_IOWRITE_BITS(pdata, DMA_MR, SWR, 1);
usleep_range(10, 15);
/* Poll Until Poll Condition */
while (count-- && XGMAC_IOREAD_BITS(pdata, DMA_MR, SWR))
usleep_range(500, 600);
if (!count)
return -EBUSY;
DBGPR("<--xgbe_exit\n");
return 0;
}
static int xgbe_flush_tx_queues(struct xgbe_prv_data *pdata)
{
unsigned int i, count;
for (i = 0; i < pdata->hw_feat.tx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, FTQ, 1);
/* Poll Until Poll Condition */
for (i = 0; i < pdata->hw_feat.tx_q_cnt; i++) {
count = 2000;
while (count-- && XGMAC_MTL_IOREAD_BITS(pdata, i,
MTL_Q_TQOMR, FTQ))
usleep_range(500, 600);
if (!count)
return -EBUSY;
}
return 0;
}
static void xgbe_config_dma_bus(struct xgbe_prv_data *pdata)
{
/* Set enhanced addressing mode */
XGMAC_IOWRITE_BITS(pdata, DMA_SBMR, EAME, 1);
/* Set the System Bus mode */
XGMAC_IOWRITE_BITS(pdata, DMA_SBMR, UNDEF, 1);
}
static void xgbe_config_dma_cache(struct xgbe_prv_data *pdata)
{
unsigned int arcache, awcache;
arcache = 0;
XGMAC_SET_BITS(arcache, DMA_AXIARCR, DRC, DMA_ARCACHE_SETTING);
XGMAC_SET_BITS(arcache, DMA_AXIARCR, DRD, DMA_ARDOMAIN_SETTING);
XGMAC_SET_BITS(arcache, DMA_AXIARCR, TEC, DMA_ARCACHE_SETTING);
XGMAC_SET_BITS(arcache, DMA_AXIARCR, TED, DMA_ARDOMAIN_SETTING);
XGMAC_SET_BITS(arcache, DMA_AXIARCR, THC, DMA_ARCACHE_SETTING);
XGMAC_SET_BITS(arcache, DMA_AXIARCR, THD, DMA_ARDOMAIN_SETTING);
XGMAC_IOWRITE(pdata, DMA_AXIARCR, arcache);
awcache = 0;
XGMAC_SET_BITS(awcache, DMA_AXIAWCR, DWC, DMA_AWCACHE_SETTING);
XGMAC_SET_BITS(awcache, DMA_AXIAWCR, DWD, DMA_AWDOMAIN_SETTING);
XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RPC, DMA_AWCACHE_SETTING);
XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RPD, DMA_AWDOMAIN_SETTING);
XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RHC, DMA_AWCACHE_SETTING);
XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RHD, DMA_AWDOMAIN_SETTING);
XGMAC_SET_BITS(awcache, DMA_AXIAWCR, TDC, DMA_AWCACHE_SETTING);
XGMAC_SET_BITS(awcache, DMA_AXIAWCR, TDD, DMA_AWDOMAIN_SETTING);
XGMAC_IOWRITE(pdata, DMA_AXIAWCR, awcache);
}
static void xgbe_config_mtl_mode(struct xgbe_prv_data *pdata)
{
unsigned int i;
/* Set Tx to weighted round robin scheduling algorithm (when
* traffic class is using ETS algorithm)
*/
XGMAC_IOWRITE_BITS(pdata, MTL_OMR, ETSALG, MTL_ETSALG_WRR);
/* Set Tx traffic classes to strict priority algorithm */
for (i = 0; i < XGBE_TC_CNT; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA, MTL_TSA_SP);
/* Set Rx to strict priority algorithm */
XGMAC_IOWRITE_BITS(pdata, MTL_OMR, RAA, MTL_RAA_SP);
}
static unsigned int xgbe_calculate_per_queue_fifo(unsigned long fifo_size,
unsigned char queue_count)
{
unsigned int q_fifo_size = 0;
enum xgbe_mtl_fifo_size p_fifo = XGMAC_MTL_FIFO_SIZE_256;
/* Calculate Tx/Rx fifo share per queue */
switch (fifo_size) {
case 0:
q_fifo_size = FIFO_SIZE_B(128);
break;
case 1:
q_fifo_size = FIFO_SIZE_B(256);
break;
case 2:
q_fifo_size = FIFO_SIZE_B(512);
break;
case 3:
q_fifo_size = FIFO_SIZE_KB(1);
break;
case 4:
q_fifo_size = FIFO_SIZE_KB(2);
break;
case 5:
q_fifo_size = FIFO_SIZE_KB(4);
break;
case 6:
q_fifo_size = FIFO_SIZE_KB(8);
break;
case 7:
q_fifo_size = FIFO_SIZE_KB(16);
break;
case 8:
q_fifo_size = FIFO_SIZE_KB(32);
break;
case 9:
q_fifo_size = FIFO_SIZE_KB(64);
break;
case 10:
q_fifo_size = FIFO_SIZE_KB(128);
break;
case 11:
q_fifo_size = FIFO_SIZE_KB(256);
break;
}
q_fifo_size = q_fifo_size / queue_count;
/* Set the queue fifo size programmable value */
if (q_fifo_size >= FIFO_SIZE_KB(256))
p_fifo = XGMAC_MTL_FIFO_SIZE_256K;
else if (q_fifo_size >= FIFO_SIZE_KB(128))
p_fifo = XGMAC_MTL_FIFO_SIZE_128K;
else if (q_fifo_size >= FIFO_SIZE_KB(64))
p_fifo = XGMAC_MTL_FIFO_SIZE_64K;
else if (q_fifo_size >= FIFO_SIZE_KB(32))
p_fifo = XGMAC_MTL_FIFO_SIZE_32K;
else if (q_fifo_size >= FIFO_SIZE_KB(16))
p_fifo = XGMAC_MTL_FIFO_SIZE_16K;
else if (q_fifo_size >= FIFO_SIZE_KB(8))
p_fifo = XGMAC_MTL_FIFO_SIZE_8K;
else if (q_fifo_size >= FIFO_SIZE_KB(4))
p_fifo = XGMAC_MTL_FIFO_SIZE_4K;
else if (q_fifo_size >= FIFO_SIZE_KB(2))
p_fifo = XGMAC_MTL_FIFO_SIZE_2K;
else if (q_fifo_size >= FIFO_SIZE_KB(1))
p_fifo = XGMAC_MTL_FIFO_SIZE_1K;
else if (q_fifo_size >= FIFO_SIZE_B(512))
p_fifo = XGMAC_MTL_FIFO_SIZE_512;
else if (q_fifo_size >= FIFO_SIZE_B(256))
p_fifo = XGMAC_MTL_FIFO_SIZE_256;
return p_fifo;
}
static void xgbe_config_tx_fifo_size(struct xgbe_prv_data *pdata)
{
enum xgbe_mtl_fifo_size fifo_size;
unsigned int i;
fifo_size = xgbe_calculate_per_queue_fifo(pdata->hw_feat.tx_fifo_size,
pdata->hw_feat.tx_q_cnt);
for (i = 0; i < pdata->hw_feat.tx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TQS, fifo_size);
netdev_notice(pdata->netdev, "%d Tx queues, %d byte fifo per queue\n",
pdata->hw_feat.tx_q_cnt, ((fifo_size + 1) * 256));
}
static void xgbe_config_rx_fifo_size(struct xgbe_prv_data *pdata)
{
enum xgbe_mtl_fifo_size fifo_size;
unsigned int i;
fifo_size = xgbe_calculate_per_queue_fifo(pdata->hw_feat.rx_fifo_size,
pdata->hw_feat.rx_q_cnt);
for (i = 0; i < pdata->hw_feat.rx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RQS, fifo_size);
netdev_notice(pdata->netdev, "%d Rx queues, %d byte fifo per queue\n",
pdata->hw_feat.rx_q_cnt, ((fifo_size + 1) * 256));
}
static void xgbe_config_rx_queue_mapping(struct xgbe_prv_data *pdata)
{
unsigned int i, reg, reg_val;
unsigned int q_count = pdata->hw_feat.rx_q_cnt;
/* Select dynamic mapping of MTL Rx queue to DMA Rx channel */
reg = MTL_RQDCM0R;
reg_val = 0;
for (i = 0; i < q_count;) {
reg_val |= (0x80 << ((i++ % MTL_RQDCM_Q_PER_REG) << 3));
if ((i % MTL_RQDCM_Q_PER_REG) && (i != q_count))
continue;
XGMAC_IOWRITE(pdata, reg, reg_val);
reg += MTL_RQDCM_INC;
reg_val = 0;
}
}
static void xgbe_config_flow_control_threshold(struct xgbe_prv_data *pdata)
{
unsigned int i;
for (i = 0; i < pdata->hw_feat.rx_q_cnt; i++) {
/* Activate flow control when less than 4k left in fifo */
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RFA, 2);
/* De-activate flow control when more than 6k left in fifo */
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RFD, 4);
}
}
static void xgbe_config_mac_address(struct xgbe_prv_data *pdata)
{
xgbe_set_mac_address(pdata, pdata->netdev->dev_addr);
}
static void xgbe_config_jumbo_enable(struct xgbe_prv_data *pdata)
{
unsigned int val;
val = (pdata->netdev->mtu > XGMAC_STD_PACKET_MTU) ? 1 : 0;
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, JE, val);
}
static void xgbe_config_checksum_offload(struct xgbe_prv_data *pdata)
{
if (pdata->netdev->features & NETIF_F_RXCSUM)
xgbe_enable_rx_csum(pdata);
else
xgbe_disable_rx_csum(pdata);
}
static void xgbe_config_vlan_support(struct xgbe_prv_data *pdata)
{
if (pdata->netdev->features & NETIF_F_HW_VLAN_CTAG_RX)
xgbe_enable_rx_vlan_stripping(pdata);
else
xgbe_disable_rx_vlan_stripping(pdata);
}
static void xgbe_tx_mmc_int(struct xgbe_prv_data *pdata)
{
struct xgbe_mmc_stats *stats = &pdata->mmc_stats;
unsigned int mmc_isr = XGMAC_IOREAD(pdata, MMC_TISR);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXOCTETCOUNT_GB))
stats->txoctetcount_gb +=
XGMAC_IOREAD(pdata, MMC_TXOCTETCOUNT_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXFRAMECOUNT_GB))
stats->txframecount_gb +=
XGMAC_IOREAD(pdata, MMC_TXFRAMECOUNT_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXBROADCASTFRAMES_G))
stats->txbroadcastframes_g +=
XGMAC_IOREAD(pdata, MMC_TXBROADCASTFRAMES_G_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXMULTICASTFRAMES_G))
stats->txmulticastframes_g +=
XGMAC_IOREAD(pdata, MMC_TXMULTICASTFRAMES_G_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX64OCTETS_GB))
stats->tx64octets_gb +=
XGMAC_IOREAD(pdata, MMC_TX64OCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX65TO127OCTETS_GB))
stats->tx65to127octets_gb +=
XGMAC_IOREAD(pdata, MMC_TX65TO127OCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX128TO255OCTETS_GB))
stats->tx128to255octets_gb +=
XGMAC_IOREAD(pdata, MMC_TX128TO255OCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX256TO511OCTETS_GB))
stats->tx256to511octets_gb +=
XGMAC_IOREAD(pdata, MMC_TX256TO511OCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX512TO1023OCTETS_GB))
stats->tx512to1023octets_gb +=
XGMAC_IOREAD(pdata, MMC_TX512TO1023OCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX1024TOMAXOCTETS_GB))
stats->tx1024tomaxoctets_gb +=
XGMAC_IOREAD(pdata, MMC_TX1024TOMAXOCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXUNICASTFRAMES_GB))
stats->txunicastframes_gb +=
XGMAC_IOREAD(pdata, MMC_TXUNICASTFRAMES_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXMULTICASTFRAMES_GB))
stats->txmulticastframes_gb +=
XGMAC_IOREAD(pdata, MMC_TXMULTICASTFRAMES_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXBROADCASTFRAMES_GB))
stats->txbroadcastframes_g +=
XGMAC_IOREAD(pdata, MMC_TXBROADCASTFRAMES_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXUNDERFLOWERROR))
stats->txunderflowerror +=
XGMAC_IOREAD(pdata, MMC_TXUNDERFLOWERROR_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXOCTETCOUNT_G))
stats->txoctetcount_g +=
XGMAC_IOREAD(pdata, MMC_TXOCTETCOUNT_G_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXFRAMECOUNT_G))
stats->txframecount_g +=
XGMAC_IOREAD(pdata, MMC_TXFRAMECOUNT_G_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXPAUSEFRAMES))
stats->txpauseframes +=
XGMAC_IOREAD(pdata, MMC_TXPAUSEFRAMES_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXVLANFRAMES_G))
stats->txvlanframes_g +=
XGMAC_IOREAD(pdata, MMC_TXVLANFRAMES_G_LO);
}
static void xgbe_rx_mmc_int(struct xgbe_prv_data *pdata)
{
struct xgbe_mmc_stats *stats = &pdata->mmc_stats;
unsigned int mmc_isr = XGMAC_IOREAD(pdata, MMC_RISR);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXFRAMECOUNT_GB))
stats->rxframecount_gb +=
XGMAC_IOREAD(pdata, MMC_RXFRAMECOUNT_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOCTETCOUNT_GB))
stats->rxoctetcount_gb +=
XGMAC_IOREAD(pdata, MMC_RXOCTETCOUNT_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOCTETCOUNT_G))
stats->rxoctetcount_g +=
XGMAC_IOREAD(pdata, MMC_RXOCTETCOUNT_G_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXBROADCASTFRAMES_G))
stats->rxbroadcastframes_g +=
XGMAC_IOREAD(pdata, MMC_RXBROADCASTFRAMES_G_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXMULTICASTFRAMES_G))
stats->rxmulticastframes_g +=
XGMAC_IOREAD(pdata, MMC_RXMULTICASTFRAMES_G_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXCRCERROR))
stats->rxcrcerror +=
XGMAC_IOREAD(pdata, MMC_RXCRCERROR_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXRUNTERROR))
stats->rxrunterror +=
XGMAC_IOREAD(pdata, MMC_RXRUNTERROR);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXJABBERERROR))
stats->rxjabbererror +=
XGMAC_IOREAD(pdata, MMC_RXJABBERERROR);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXUNDERSIZE_G))
stats->rxundersize_g +=
XGMAC_IOREAD(pdata, MMC_RXUNDERSIZE_G);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOVERSIZE_G))
stats->rxoversize_g +=
XGMAC_IOREAD(pdata, MMC_RXOVERSIZE_G);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX64OCTETS_GB))
stats->rx64octets_gb +=
XGMAC_IOREAD(pdata, MMC_RX64OCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX65TO127OCTETS_GB))
stats->rx65to127octets_gb +=
XGMAC_IOREAD(pdata, MMC_RX65TO127OCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX128TO255OCTETS_GB))
stats->rx128to255octets_gb +=
XGMAC_IOREAD(pdata, MMC_RX128TO255OCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX256TO511OCTETS_GB))
stats->rx256to511octets_gb +=
XGMAC_IOREAD(pdata, MMC_RX256TO511OCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX512TO1023OCTETS_GB))
stats->rx512to1023octets_gb +=
XGMAC_IOREAD(pdata, MMC_RX512TO1023OCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX1024TOMAXOCTETS_GB))
stats->rx1024tomaxoctets_gb +=
XGMAC_IOREAD(pdata, MMC_RX1024TOMAXOCTETS_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXUNICASTFRAMES_G))
stats->rxunicastframes_g +=
XGMAC_IOREAD(pdata, MMC_RXUNICASTFRAMES_G_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXLENGTHERROR))
stats->rxlengtherror +=
XGMAC_IOREAD(pdata, MMC_RXLENGTHERROR_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOUTOFRANGETYPE))
stats->rxoutofrangetype +=
XGMAC_IOREAD(pdata, MMC_RXOUTOFRANGETYPE_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXPAUSEFRAMES))
stats->rxpauseframes +=
XGMAC_IOREAD(pdata, MMC_RXPAUSEFRAMES_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXFIFOOVERFLOW))
stats->rxfifooverflow +=
XGMAC_IOREAD(pdata, MMC_RXFIFOOVERFLOW_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXVLANFRAMES_GB))
stats->rxvlanframes_gb +=
XGMAC_IOREAD(pdata, MMC_RXVLANFRAMES_GB_LO);
if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXWATCHDOGERROR))
stats->rxwatchdogerror +=
XGMAC_IOREAD(pdata, MMC_RXWATCHDOGERROR);
}
static void xgbe_read_mmc_stats(struct xgbe_prv_data *pdata)
{
struct xgbe_mmc_stats *stats = &pdata->mmc_stats;
/* Freeze counters */
XGMAC_IOWRITE_BITS(pdata, MMC_CR, MCF, 1);
stats->txoctetcount_gb +=
XGMAC_IOREAD(pdata, MMC_TXOCTETCOUNT_GB_LO);
stats->txframecount_gb +=
XGMAC_IOREAD(pdata, MMC_TXFRAMECOUNT_GB_LO);
stats->txbroadcastframes_g +=
XGMAC_IOREAD(pdata, MMC_TXBROADCASTFRAMES_G_LO);
stats->txmulticastframes_g +=
XGMAC_IOREAD(pdata, MMC_TXMULTICASTFRAMES_G_LO);
stats->tx64octets_gb +=
XGMAC_IOREAD(pdata, MMC_TX64OCTETS_GB_LO);
stats->tx65to127octets_gb +=
XGMAC_IOREAD(pdata, MMC_TX65TO127OCTETS_GB_LO);
stats->tx128to255octets_gb +=
XGMAC_IOREAD(pdata, MMC_TX128TO255OCTETS_GB_LO);
stats->tx256to511octets_gb +=
XGMAC_IOREAD(pdata, MMC_TX256TO511OCTETS_GB_LO);
stats->tx512to1023octets_gb +=
XGMAC_IOREAD(pdata, MMC_TX512TO1023OCTETS_GB_LO);
stats->tx1024tomaxoctets_gb +=
XGMAC_IOREAD(pdata, MMC_TX1024TOMAXOCTETS_GB_LO);
stats->txunicastframes_gb +=
XGMAC_IOREAD(pdata, MMC_TXUNICASTFRAMES_GB_LO);
stats->txmulticastframes_gb +=
XGMAC_IOREAD(pdata, MMC_TXMULTICASTFRAMES_GB_LO);
stats->txbroadcastframes_g +=
XGMAC_IOREAD(pdata, MMC_TXBROADCASTFRAMES_GB_LO);
stats->txunderflowerror +=
XGMAC_IOREAD(pdata, MMC_TXUNDERFLOWERROR_LO);
stats->txoctetcount_g +=
XGMAC_IOREAD(pdata, MMC_TXOCTETCOUNT_G_LO);
stats->txframecount_g +=
XGMAC_IOREAD(pdata, MMC_TXFRAMECOUNT_G_LO);
stats->txpauseframes +=
XGMAC_IOREAD(pdata, MMC_TXPAUSEFRAMES_LO);
stats->txvlanframes_g +=
XGMAC_IOREAD(pdata, MMC_TXVLANFRAMES_G_LO);
stats->rxframecount_gb +=
XGMAC_IOREAD(pdata, MMC_RXFRAMECOUNT_GB_LO);
stats->rxoctetcount_gb +=
XGMAC_IOREAD(pdata, MMC_RXOCTETCOUNT_GB_LO);
stats->rxoctetcount_g +=
XGMAC_IOREAD(pdata, MMC_RXOCTETCOUNT_G_LO);
stats->rxbroadcastframes_g +=
XGMAC_IOREAD(pdata, MMC_RXBROADCASTFRAMES_G_LO);
stats->rxmulticastframes_g +=
XGMAC_IOREAD(pdata, MMC_RXMULTICASTFRAMES_G_LO);
stats->rxcrcerror +=
XGMAC_IOREAD(pdata, MMC_RXCRCERROR_LO);
stats->rxrunterror +=
XGMAC_IOREAD(pdata, MMC_RXRUNTERROR);
stats->rxjabbererror +=
XGMAC_IOREAD(pdata, MMC_RXJABBERERROR);
stats->rxundersize_g +=
XGMAC_IOREAD(pdata, MMC_RXUNDERSIZE_G);
stats->rxoversize_g +=
XGMAC_IOREAD(pdata, MMC_RXOVERSIZE_G);
stats->rx64octets_gb +=
XGMAC_IOREAD(pdata, MMC_RX64OCTETS_GB_LO);
stats->rx65to127octets_gb +=
XGMAC_IOREAD(pdata, MMC_RX65TO127OCTETS_GB_LO);
stats->rx128to255octets_gb +=
XGMAC_IOREAD(pdata, MMC_RX128TO255OCTETS_GB_LO);
stats->rx256to511octets_gb +=
XGMAC_IOREAD(pdata, MMC_RX256TO511OCTETS_GB_LO);
stats->rx512to1023octets_gb +=
XGMAC_IOREAD(pdata, MMC_RX512TO1023OCTETS_GB_LO);
stats->rx1024tomaxoctets_gb +=
XGMAC_IOREAD(pdata, MMC_RX1024TOMAXOCTETS_GB_LO);
stats->rxunicastframes_g +=
XGMAC_IOREAD(pdata, MMC_RXUNICASTFRAMES_G_LO);
stats->rxlengtherror +=
XGMAC_IOREAD(pdata, MMC_RXLENGTHERROR_LO);
stats->rxoutofrangetype +=
XGMAC_IOREAD(pdata, MMC_RXOUTOFRANGETYPE_LO);
stats->rxpauseframes +=
XGMAC_IOREAD(pdata, MMC_RXPAUSEFRAMES_LO);
stats->rxfifooverflow +=
XGMAC_IOREAD(pdata, MMC_RXFIFOOVERFLOW_LO);
stats->rxvlanframes_gb +=
XGMAC_IOREAD(pdata, MMC_RXVLANFRAMES_GB_LO);
stats->rxwatchdogerror +=
XGMAC_IOREAD(pdata, MMC_RXWATCHDOGERROR);
/* Un-freeze counters */
XGMAC_IOWRITE_BITS(pdata, MMC_CR, MCF, 0);
}
static void xgbe_config_mmc(struct xgbe_prv_data *pdata)
{
/* Set counters to reset on read */
XGMAC_IOWRITE_BITS(pdata, MMC_CR, ROR, 1);
/* Reset the counters */
XGMAC_IOWRITE_BITS(pdata, MMC_CR, CR, 1);
}
static void xgbe_enable_tx(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
/* Enable each Tx DMA channel */
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->tx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_TCR, ST, 1);
}
/* Enable each Tx queue */
for (i = 0; i < pdata->hw_feat.tx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TXQEN,
MTL_Q_ENABLED);
/* Enable MAC Tx */
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 1);
}
static void xgbe_disable_tx(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
/* Disable MAC Tx */
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 0);
/* Disable each Tx queue */
for (i = 0; i < pdata->hw_feat.tx_q_cnt; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TXQEN, 0);
/* Disable each Tx DMA channel */
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->tx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_TCR, ST, 0);
}
}
static void xgbe_enable_rx(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int reg_val, i;
/* Enable each Rx DMA channel */
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->rx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_RCR, SR, 1);
}
/* Enable each Rx queue */
reg_val = 0;
for (i = 0; i < pdata->hw_feat.rx_q_cnt; i++)
reg_val |= (0x02 << (i << 1));
XGMAC_IOWRITE(pdata, MAC_RQC0R, reg_val);
/* Enable MAC Rx */
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, DCRCC, 1);
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, CST, 1);
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, ACS, 1);
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, RE, 1);
}
static void xgbe_disable_rx(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
/* Disable MAC Rx */
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, DCRCC, 0);
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, CST, 0);
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, ACS, 0);
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, RE, 0);
/* Disable each Rx queue */
XGMAC_IOWRITE(pdata, MAC_RQC0R, 0);
/* Disable each Rx DMA channel */
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->rx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_RCR, SR, 0);
}
}
static void xgbe_powerup_tx(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
/* Enable each Tx DMA channel */
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->tx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_TCR, ST, 1);
}
/* Enable MAC Tx */
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 1);
}
static void xgbe_powerdown_tx(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
/* Disable MAC Tx */
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 0);
/* Disable each Tx DMA channel */
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->tx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_TCR, ST, 0);
}
}
static void xgbe_powerup_rx(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
/* Enable each Rx DMA channel */
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->rx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_RCR, SR, 1);
}
}
static void xgbe_powerdown_rx(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
/* Disable each Rx DMA channel */
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->rx_ring)
break;
XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_RCR, SR, 0);
}
}
static int xgbe_init(struct xgbe_prv_data *pdata)
{
struct xgbe_desc_if *desc_if = &pdata->desc_if;
int ret;
DBGPR("-->xgbe_init\n");
/* Flush Tx queues */
ret = xgbe_flush_tx_queues(pdata);
if (ret)
return ret;
/*
* Initialize DMA related features
*/
xgbe_config_dma_bus(pdata);
xgbe_config_dma_cache(pdata);
xgbe_config_osp_mode(pdata);
xgbe_config_pblx8(pdata);
xgbe_config_tx_pbl_val(pdata);
xgbe_config_rx_pbl_val(pdata);
xgbe_config_rx_coalesce(pdata);
xgbe_config_tx_coalesce(pdata);
xgbe_config_rx_buffer_size(pdata);
xgbe_config_tso_mode(pdata);
desc_if->wrapper_tx_desc_init(pdata);
desc_if->wrapper_rx_desc_init(pdata);
xgbe_enable_dma_interrupts(pdata);
/*
* Initialize MTL related features
*/
xgbe_config_mtl_mode(pdata);
xgbe_config_rx_queue_mapping(pdata);
/*TODO: Program the priorities mapped to the Selected Traffic Classes
in MTL_TC_Prty_Map0-3 registers */
xgbe_config_tsf_mode(pdata, pdata->tx_sf_mode);
xgbe_config_rsf_mode(pdata, pdata->rx_sf_mode);
xgbe_config_tx_threshold(pdata, pdata->tx_threshold);
xgbe_config_rx_threshold(pdata, pdata->rx_threshold);
xgbe_config_tx_fifo_size(pdata);
xgbe_config_rx_fifo_size(pdata);
xgbe_config_flow_control_threshold(pdata);
/*TODO: Queue to Traffic Class Mapping (Q2TCMAP) */
/*TODO: Error Packet and undersized good Packet forwarding enable
(FEP and FUP)
*/
xgbe_enable_mtl_interrupts(pdata);
/* Transmit Class Weight */
XGMAC_IOWRITE_BITS(pdata, MTL_Q_TCQWR, QW, 0x10);
/*
* Initialize MAC related features
*/
xgbe_config_mac_address(pdata);
xgbe_config_jumbo_enable(pdata);
xgbe_config_flow_control(pdata);
xgbe_config_checksum_offload(pdata);
xgbe_config_vlan_support(pdata);
xgbe_config_mmc(pdata);
xgbe_enable_mac_interrupts(pdata);
DBGPR("<--xgbe_init\n");
return 0;
}
void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *hw_if)
{
DBGPR("-->xgbe_init_function_ptrs\n");
hw_if->tx_complete = xgbe_tx_complete;
hw_if->set_promiscuous_mode = xgbe_set_promiscuous_mode;
hw_if->set_all_multicast_mode = xgbe_set_all_multicast_mode;
hw_if->set_addn_mac_addrs = xgbe_set_addn_mac_addrs;
hw_if->set_mac_address = xgbe_set_mac_address;
hw_if->enable_rx_csum = xgbe_enable_rx_csum;
hw_if->disable_rx_csum = xgbe_disable_rx_csum;
hw_if->enable_rx_vlan_stripping = xgbe_enable_rx_vlan_stripping;
hw_if->disable_rx_vlan_stripping = xgbe_disable_rx_vlan_stripping;
hw_if->read_mmd_regs = xgbe_read_mmd_regs;
hw_if->write_mmd_regs = xgbe_write_mmd_regs;
hw_if->set_gmii_speed = xgbe_set_gmii_speed;
hw_if->set_gmii_2500_speed = xgbe_set_gmii_2500_speed;
hw_if->set_xgmii_speed = xgbe_set_xgmii_speed;
hw_if->enable_tx = xgbe_enable_tx;
hw_if->disable_tx = xgbe_disable_tx;
hw_if->enable_rx = xgbe_enable_rx;
hw_if->disable_rx = xgbe_disable_rx;
hw_if->powerup_tx = xgbe_powerup_tx;
hw_if->powerdown_tx = xgbe_powerdown_tx;
hw_if->powerup_rx = xgbe_powerup_rx;
hw_if->powerdown_rx = xgbe_powerdown_rx;
hw_if->pre_xmit = xgbe_pre_xmit;
hw_if->dev_read = xgbe_dev_read;
hw_if->enable_int = xgbe_enable_int;
hw_if->disable_int = xgbe_disable_int;
hw_if->init = xgbe_init;
hw_if->exit = xgbe_exit;
/* Descriptor related Sequences have to be initialized here */
hw_if->tx_desc_init = xgbe_tx_desc_init;
hw_if->rx_desc_init = xgbe_rx_desc_init;
hw_if->tx_desc_reset = xgbe_tx_desc_reset;
hw_if->rx_desc_reset = xgbe_rx_desc_reset;
hw_if->is_last_desc = xgbe_is_last_desc;
hw_if->is_context_desc = xgbe_is_context_desc;
/* For FLOW ctrl */
hw_if->config_tx_flow_control = xgbe_config_tx_flow_control;
hw_if->config_rx_flow_control = xgbe_config_rx_flow_control;
/* For RX coalescing */
hw_if->config_rx_coalesce = xgbe_config_rx_coalesce;
hw_if->config_tx_coalesce = xgbe_config_tx_coalesce;
hw_if->usec_to_riwt = xgbe_usec_to_riwt;
hw_if->riwt_to_usec = xgbe_riwt_to_usec;
/* For RX and TX threshold config */
hw_if->config_rx_threshold = xgbe_config_rx_threshold;
hw_if->config_tx_threshold = xgbe_config_tx_threshold;
/* For RX and TX Store and Forward Mode config */
hw_if->config_rsf_mode = xgbe_config_rsf_mode;
hw_if->config_tsf_mode = xgbe_config_tsf_mode;
/* For TX DMA Operating on Second Frame config */
hw_if->config_osp_mode = xgbe_config_osp_mode;
/* For RX and TX PBL config */
hw_if->config_rx_pbl_val = xgbe_config_rx_pbl_val;
hw_if->get_rx_pbl_val = xgbe_get_rx_pbl_val;
hw_if->config_tx_pbl_val = xgbe_config_tx_pbl_val;
hw_if->get_tx_pbl_val = xgbe_get_tx_pbl_val;
hw_if->config_pblx8 = xgbe_config_pblx8;
/* For MMC statistics support */
hw_if->tx_mmc_int = xgbe_tx_mmc_int;
hw_if->rx_mmc_int = xgbe_rx_mmc_int;
hw_if->read_mmc_stats = xgbe_read_mmc_stats;
DBGPR("<--xgbe_init_function_ptrs\n");
}
drivers/net/ethernet/amd/xgbe/xgbe-drv.c 0 → 100644
浏览文件 @ c5aa9e3b
/*
* AMD 10Gb Ethernet driver
*
* This file is available to you under your choice of the following two
* licenses:
*
* License 1: GPLv2
*
* Copyright (c) 2014 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 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 <linux/spinlock.h>
#include <linux/tcp.h>
#include <linux/if_vlan.h>
#include <linux/phy.h>
#include <net/busy_poll.h>
#include <linux/clk.h>
#include <linux/if_ether.h>
#include "xgbe.h"
#include "xgbe-common.h"
static int xgbe_poll(struct napi_struct *, int);
static void xgbe_set_rx_mode(struct net_device *);
static inline unsigned int xgbe_tx_avail_desc(struct xgbe_ring *ring)
{
return (ring->rdesc_count - (ring->cur - ring->dirty));
}
static int xgbe_calc_rx_buf_size(struct net_device *netdev, unsigned int mtu)
{
unsigned int rx_buf_size;
if (mtu > XGMAC_JUMBO_PACKET_MTU) {
netdev_alert(netdev, "MTU exceeds maximum supported value\n");
return -EINVAL;
}
rx_buf_size = mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
if (rx_buf_size < RX_MIN_BUF_SIZE)
rx_buf_size = RX_MIN_BUF_SIZE;
rx_buf_size = (rx_buf_size + RX_BUF_ALIGN - 1) & ~(RX_BUF_ALIGN - 1);
return rx_buf_size;
}
static void xgbe_enable_rx_tx_ints(struct xgbe_prv_data *pdata)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_channel *channel;
unsigned int i;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (channel->tx_ring)
hw_if->enable_int(channel,
XGMAC_INT_DMA_CH_SR_TI);
if (channel->rx_ring)
hw_if->enable_int(channel,
XGMAC_INT_DMA_CH_SR_RI);
}
}
static void xgbe_disable_rx_tx_ints(struct xgbe_prv_data *pdata)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_channel *channel;
unsigned int i;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (channel->tx_ring)
hw_if->disable_int(channel,
XGMAC_INT_DMA_CH_SR_TI);
if (channel->rx_ring)
hw_if->disable_int(channel,
XGMAC_INT_DMA_CH_SR_RI);
}
}
static irqreturn_t xgbe_isr(int irq, void *data)
{
struct xgbe_prv_data *pdata = data;
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_channel *channel;
unsigned int dma_isr, dma_ch_isr;
unsigned int mac_isr;
unsigned int i;
/* The DMA interrupt status register also reports MAC and MTL
* interrupts. So for polling mode, we just need to check for
* this register to be non-zero
*/
dma_isr = XGMAC_IOREAD(pdata, DMA_ISR);
if (!dma_isr)
goto isr_done;
DBGPR("-->xgbe_isr\n");
DBGPR(" DMA_ISR = %08x\n", dma_isr);
DBGPR(" DMA_DS0 = %08x\n", XGMAC_IOREAD(pdata, DMA_DSR0));
DBGPR(" DMA_DS1 = %08x\n", XGMAC_IOREAD(pdata, DMA_DSR1));
for (i = 0; i < pdata->channel_count; i++) {
if (!(dma_isr & (1 << i)))
continue;
channel = pdata->channel + i;
dma_ch_isr = XGMAC_DMA_IOREAD(channel, DMA_CH_SR);
DBGPR(" DMA_CH%u_ISR = %08x\n", i, dma_ch_isr);
if (XGMAC_GET_BITS(dma_ch_isr, DMA_CH_SR, TI) ||
XGMAC_GET_BITS(dma_ch_isr, DMA_CH_SR, RI)) {
if (napi_schedule_prep(&pdata->napi)) {
/* Disable Tx and Rx interrupts */
xgbe_disable_rx_tx_ints(pdata);
/* Turn on polling */
__napi_schedule(&pdata->napi);
}
}
/* Restart the device on a Fatal Bus Error */
if (XGMAC_GET_BITS(dma_ch_isr, DMA_CH_SR, FBE))
schedule_work(&pdata->restart_work);
/* Clear all interrupt signals */
XGMAC_DMA_IOWRITE(channel, DMA_CH_SR, dma_ch_isr);
}
if (XGMAC_GET_BITS(dma_isr, DMA_ISR, MACIS)) {
mac_isr = XGMAC_IOREAD(pdata, MAC_ISR);
if (XGMAC_GET_BITS(mac_isr, MAC_ISR, MMCTXIS))
hw_if->tx_mmc_int(pdata);
if (XGMAC_GET_BITS(mac_isr, MAC_ISR, MMCRXIS))
hw_if->rx_mmc_int(pdata);
}
DBGPR(" DMA_ISR = %08x\n", XGMAC_IOREAD(pdata, DMA_ISR));
DBGPR("<--xgbe_isr\n");
isr_done:
return IRQ_HANDLED;
}
static enum hrtimer_restart xgbe_tx_timer(struct hrtimer *timer)
{
struct xgbe_channel *channel = container_of(timer,
struct xgbe_channel,
tx_timer);
struct xgbe_ring *ring = channel->tx_ring;
struct xgbe_prv_data *pdata = channel->pdata;
unsigned long flags;
DBGPR("-->xgbe_tx_timer\n");
spin_lock_irqsave(&ring->lock, flags);
if (napi_schedule_prep(&pdata->napi)) {
/* Disable Tx and Rx interrupts */
xgbe_disable_rx_tx_ints(pdata);
/* Turn on polling */
__napi_schedule(&pdata->napi);
}
channel->tx_timer_active = 0;
spin_unlock_irqrestore(&ring->lock, flags);
DBGPR("<--xgbe_tx_timer\n");
return HRTIMER_NORESTART;
}
static void xgbe_init_tx_timers(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
DBGPR("-->xgbe_init_tx_timers\n");
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->tx_ring)
break;
DBGPR(" %s adding tx timer\n", channel->name);
hrtimer_init(&channel->tx_timer, CLOCK_MONOTONIC,
HRTIMER_MODE_REL);
channel->tx_timer.function = xgbe_tx_timer;
}
DBGPR("<--xgbe_init_tx_timers\n");
}
static void xgbe_stop_tx_timers(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
DBGPR("-->xgbe_stop_tx_timers\n");
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
if (!channel->tx_ring)
break;
DBGPR(" %s deleting tx timer\n", channel->name);
channel->tx_timer_active = 0;
hrtimer_cancel(&channel->tx_timer);
}
DBGPR("<--xgbe_stop_tx_timers\n");
}
void xgbe_get_all_hw_features(struct xgbe_prv_data *pdata)
{
unsigned int mac_hfr0, mac_hfr1, mac_hfr2;
struct xgbe_hw_features *hw_feat = &pdata->hw_feat;
DBGPR("-->xgbe_get_all_hw_features\n");
mac_hfr0 = XGMAC_IOREAD(pdata, MAC_HWF0R);
mac_hfr1 = XGMAC_IOREAD(pdata, MAC_HWF1R);
mac_hfr2 = XGMAC_IOREAD(pdata, MAC_HWF2R);
memset(hw_feat, 0, sizeof(*hw_feat));
/* Hardware feature register 0 */
hw_feat->gmii = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, GMIISEL);
hw_feat->vlhash = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, VLHASH);
hw_feat->sma = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, SMASEL);
hw_feat->rwk = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, RWKSEL);
hw_feat->mgk = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, MGKSEL);
hw_feat->mmc = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, MMCSEL);
hw_feat->aoe = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, ARPOFFSEL);
hw_feat->ts = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, TSSEL);
hw_feat->eee = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, EEESEL);
hw_feat->tx_coe = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, TXCOESEL);
hw_feat->rx_coe = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, RXCOESEL);
hw_feat->addn_mac = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R,
ADDMACADRSEL);
hw_feat->ts_src = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, TSSTSSEL);
hw_feat->sa_vlan_ins = XGMAC_GET_BITS(mac_hfr0, MAC_HWF0R, SAVLANINS);
/* Hardware feature register 1 */
hw_feat->rx_fifo_size = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R,
RXFIFOSIZE);
hw_feat->tx_fifo_size = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R,
TXFIFOSIZE);
hw_feat->dcb = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, DCBEN);
hw_feat->sph = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, SPHEN);
hw_feat->tso = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, TSOEN);
hw_feat->dma_debug = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, DBGMEMA);
hw_feat->hash_table_size = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R,
HASHTBLSZ);
hw_feat->l3l4_filter_num = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R,
L3L4FNUM);
/* Hardware feature register 2 */
hw_feat->rx_q_cnt = XGMAC_GET_BITS(mac_hfr2, MAC_HWF2R, RXQCNT);
hw_feat->tx_q_cnt = XGMAC_GET_BITS(mac_hfr2, MAC_HWF2R, TXQCNT);
hw_feat->rx_ch_cnt = XGMAC_GET_BITS(mac_hfr2, MAC_HWF2R, RXCHCNT);
hw_feat->tx_ch_cnt = XGMAC_GET_BITS(mac_hfr2, MAC_HWF2R, TXCHCNT);
hw_feat->pps_out_num = XGMAC_GET_BITS(mac_hfr2, MAC_HWF2R, PPSOUTNUM);
hw_feat->aux_snap_num = XGMAC_GET_BITS(mac_hfr2, MAC_HWF2R, AUXSNAPNUM);
/* The Queue and Channel counts are zero based so increment them
* to get the actual number
*/
hw_feat->rx_q_cnt++;
hw_feat->tx_q_cnt++;
hw_feat->rx_ch_cnt++;
hw_feat->tx_ch_cnt++;
DBGPR("<--xgbe_get_all_hw_features\n");
}
static void xgbe_napi_enable(struct xgbe_prv_data *pdata, unsigned int add)
{
if (add)
netif_napi_add(pdata->netdev, &pdata->napi, xgbe_poll,
NAPI_POLL_WEIGHT);
napi_enable(&pdata->napi);
}
static void xgbe_napi_disable(struct xgbe_prv_data *pdata)
{
napi_disable(&pdata->napi);
}
void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
DBGPR("-->xgbe_init_tx_coalesce\n");
pdata->tx_usecs = XGMAC_INIT_DMA_TX_USECS;
pdata->tx_frames = XGMAC_INIT_DMA_TX_FRAMES;
hw_if->config_tx_coalesce(pdata);
DBGPR("<--xgbe_init_tx_coalesce\n");
}
void xgbe_init_rx_coalesce(struct xgbe_prv_data *pdata)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
DBGPR("-->xgbe_init_rx_coalesce\n");
pdata->rx_riwt = hw_if->usec_to_riwt(pdata, XGMAC_INIT_DMA_RX_USECS);
pdata->rx_frames = XGMAC_INIT_DMA_RX_FRAMES;
hw_if->config_rx_coalesce(pdata);
DBGPR("<--xgbe_init_rx_coalesce\n");
}
static void xgbe_free_tx_skbuff(struct xgbe_prv_data *pdata)
{
struct xgbe_desc_if *desc_if = &pdata->desc_if;
struct xgbe_channel *channel;
struct xgbe_ring *ring;
struct xgbe_ring_data *rdata;
unsigned int i, j;
DBGPR("-->xgbe_free_tx_skbuff\n");
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
ring = channel->tx_ring;
if (!ring)
break;
for (j = 0; j < ring->rdesc_count; j++) {
rdata = GET_DESC_DATA(ring, j);
desc_if->unmap_skb(pdata, rdata);
}
}
DBGPR("<--xgbe_free_tx_skbuff\n");
}
static void xgbe_free_rx_skbuff(struct xgbe_prv_data *pdata)
{
struct xgbe_desc_if *desc_if = &pdata->desc_if;
struct xgbe_channel *channel;
struct xgbe_ring *ring;
struct xgbe_ring_data *rdata;
unsigned int i, j;
DBGPR("-->xgbe_free_rx_skbuff\n");
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
ring = channel->rx_ring;
if (!ring)
break;
for (j = 0; j < ring->rdesc_count; j++) {
rdata = GET_DESC_DATA(ring, j);
desc_if->unmap_skb(pdata, rdata);
}
}
DBGPR("<--xgbe_free_rx_skbuff\n");
}
int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
unsigned long flags;
DBGPR("-->xgbe_powerdown\n");
if (!netif_running(netdev) ||
(caller == XGMAC_IOCTL_CONTEXT && pdata->power_down)) {
netdev_alert(netdev, "Device is already powered down\n");
DBGPR("<--xgbe_powerdown\n");
return -EINVAL;
}
phy_stop(pdata->phydev);
spin_lock_irqsave(&pdata->lock, flags);
if (caller == XGMAC_DRIVER_CONTEXT)
netif_device_detach(netdev);
netif_tx_stop_all_queues(netdev);
xgbe_napi_disable(pdata);
/* Powerdown Tx/Rx */
hw_if->powerdown_tx(pdata);
hw_if->powerdown_rx(pdata);
pdata->power_down = 1;
spin_unlock_irqrestore(&pdata->lock, flags);
DBGPR("<--xgbe_powerdown\n");
return 0;
}
int xgbe_powerup(struct net_device *netdev, unsigned int caller)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
unsigned long flags;
DBGPR("-->xgbe_powerup\n");
if (!netif_running(netdev) ||
(caller == XGMAC_IOCTL_CONTEXT && !pdata->power_down)) {
netdev_alert(netdev, "Device is already powered up\n");
DBGPR("<--xgbe_powerup\n");
return -EINVAL;
}
spin_lock_irqsave(&pdata->lock, flags);
pdata->power_down = 0;
phy_start(pdata->phydev);
/* Enable Tx/Rx */
hw_if->powerup_tx(pdata);
hw_if->powerup_rx(pdata);
if (caller == XGMAC_DRIVER_CONTEXT)
netif_device_attach(netdev);
xgbe_napi_enable(pdata, 0);
netif_tx_start_all_queues(netdev);
spin_unlock_irqrestore(&pdata->lock, flags);
DBGPR("<--xgbe_powerup\n");
return 0;
}
static int xgbe_start(struct xgbe_prv_data *pdata)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct net_device *netdev = pdata->netdev;
DBGPR("-->xgbe_start\n");
xgbe_set_rx_mode(netdev);
hw_if->init(pdata);
phy_start(pdata->phydev);
hw_if->enable_tx(pdata);
hw_if->enable_rx(pdata);
xgbe_init_tx_timers(pdata);
xgbe_napi_enable(pdata, 1);
netif_tx_start_all_queues(netdev);
DBGPR("<--xgbe_start\n");
return 0;
}
static void xgbe_stop(struct xgbe_prv_data *pdata)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct net_device *netdev = pdata->netdev;
DBGPR("-->xgbe_stop\n");
phy_stop(pdata->phydev);
netif_tx_stop_all_queues(netdev);
xgbe_napi_disable(pdata);
xgbe_stop_tx_timers(pdata);
hw_if->disable_tx(pdata);
hw_if->disable_rx(pdata);
DBGPR("<--xgbe_stop\n");
}
static void xgbe_restart_dev(struct xgbe_prv_data *pdata, unsigned int reset)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
DBGPR("-->xgbe_restart_dev\n");
/* If not running, "restart" will happen on open */
if (!netif_running(pdata->netdev))
return;
xgbe_stop(pdata);
synchronize_irq(pdata->irq_number);
xgbe_free_tx_skbuff(pdata);
xgbe_free_rx_skbuff(pdata);
/* Issue software reset to device if requested */
if (reset)
hw_if->exit(pdata);
xgbe_start(pdata);
DBGPR("<--xgbe_restart_dev\n");
}
static void xgbe_restart(struct work_struct *work)
{
struct xgbe_prv_data *pdata = container_of(work,
struct xgbe_prv_data,
restart_work);
rtnl_lock();
xgbe_restart_dev(pdata, 1);
rtnl_unlock();
}
static void xgbe_prep_vlan(struct sk_buff *skb, struct xgbe_packet_data *packet)
{
if (vlan_tx_tag_present(skb))
packet->vlan_ctag = vlan_tx_tag_get(skb);
}
static int xgbe_prep_tso(struct sk_buff *skb, struct xgbe_packet_data *packet)
{
int ret;
if (!XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
TSO_ENABLE))
return 0;
ret = skb_cow_head(skb, 0);
if (ret)
return ret;
packet->header_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
packet->tcp_header_len = tcp_hdrlen(skb);
packet->tcp_payload_len = skb->len - packet->header_len;
packet->mss = skb_shinfo(skb)->gso_size;
DBGPR(" packet->header_len=%u\n", packet->header_len);
DBGPR(" packet->tcp_header_len=%u, packet->tcp_payload_len=%u\n",
packet->tcp_header_len, packet->tcp_payload_len);
DBGPR(" packet->mss=%u\n", packet->mss);
return 0;
}
static int xgbe_is_tso(struct sk_buff *skb)
{
if (skb->ip_summed != CHECKSUM_PARTIAL)
return 0;
if (!skb_is_gso(skb))
return 0;
DBGPR(" TSO packet to be processed\n");
return 1;
}
static void xgbe_packet_info(struct xgbe_ring *ring, struct sk_buff *skb,
struct xgbe_packet_data *packet)
{
struct skb_frag_struct *frag;
unsigned int context_desc;
unsigned int len;
unsigned int i;
context_desc = 0;
packet->rdesc_count = 0;
if (xgbe_is_tso(skb)) {
/* TSO requires an extra desriptor if mss is different */
if (skb_shinfo(skb)->gso_size != ring->tx.cur_mss) {
context_desc = 1;
packet->rdesc_count++;
}
/* TSO requires an extra desriptor for TSO header */
packet->rdesc_count++;
XGMAC_SET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
TSO_ENABLE, 1);
XGMAC_SET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
CSUM_ENABLE, 1);
} else if (skb->ip_summed == CHECKSUM_PARTIAL)
XGMAC_SET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
CSUM_ENABLE, 1);
if (vlan_tx_tag_present(skb)) {
/* VLAN requires an extra descriptor if tag is different */
if (vlan_tx_tag_get(skb) != ring->tx.cur_vlan_ctag)
/* We can share with the TSO context descriptor */
if (!context_desc) {
context_desc = 1;
packet->rdesc_count++;
}
XGMAC_SET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
VLAN_CTAG, 1);
}
for (len = skb_headlen(skb); len;) {
packet->rdesc_count++;
len -= min_t(unsigned int, len, TX_MAX_BUF_SIZE);
}
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
frag = &skb_shinfo(skb)->frags[i];
for (len = skb_frag_size(frag); len; ) {
packet->rdesc_count++;
len -= min_t(unsigned int, len, TX_MAX_BUF_SIZE);
}
}
}
static int xgbe_open(struct net_device *netdev)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_desc_if *desc_if = &pdata->desc_if;
int ret;
DBGPR("-->xgbe_open\n");
/* Enable the clock */
ret = clk_prepare_enable(pdata->sysclock);
if (ret) {
netdev_alert(netdev, "clk_prepare_enable failed\n");
return ret;
}
/* Calculate the Rx buffer size before allocating rings */
ret = xgbe_calc_rx_buf_size(netdev, netdev->mtu);
if (ret < 0)
goto err_clk;
pdata->rx_buf_size = ret;
/* Allocate the ring descriptors and buffers */
ret = desc_if->alloc_ring_resources(pdata);
if (ret)
goto err_clk;
/* Initialize the device restart work struct */
INIT_WORK(&pdata->restart_work, xgbe_restart);
/* Request interrupts */
ret = devm_request_irq(pdata->dev, netdev->irq, xgbe_isr, 0,
netdev->name, pdata);
if (ret) {
netdev_alert(netdev, "error requesting irq %d\n",
pdata->irq_number);
goto err_irq;
}
pdata->irq_number = netdev->irq;
ret = xgbe_start(pdata);
if (ret)
goto err_start;
DBGPR("<--xgbe_open\n");
return 0;
err_start:
hw_if->exit(pdata);
devm_free_irq(pdata->dev, pdata->irq_number, pdata);
pdata->irq_number = 0;
err_irq:
desc_if->free_ring_resources(pdata);
err_clk:
clk_disable_unprepare(pdata->sysclock);
return ret;
}
static int xgbe_close(struct net_device *netdev)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_desc_if *desc_if = &pdata->desc_if;
DBGPR("-->xgbe_close\n");
/* Stop the device */
xgbe_stop(pdata);
/* Issue software reset to device */
hw_if->exit(pdata);
/* Free all the ring data */
desc_if->free_ring_resources(pdata);
/* Release the interrupt */
if (pdata->irq_number != 0) {
devm_free_irq(pdata->dev, pdata->irq_number, pdata);
pdata->irq_number = 0;
}
/* Disable the clock */
clk_disable_unprepare(pdata->sysclock);
DBGPR("<--xgbe_close\n");
return 0;
}
static int xgbe_xmit(struct sk_buff *skb, struct net_device *netdev)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_desc_if *desc_if = &pdata->desc_if;
struct xgbe_channel *channel;
struct xgbe_ring *ring;
struct xgbe_packet_data *packet;
unsigned long flags;
int ret;
DBGPR("-->xgbe_xmit: skb->len = %d\n", skb->len);
channel = pdata->channel + skb->queue_mapping;
ring = channel->tx_ring;
packet = &ring->packet_data;
ret = NETDEV_TX_OK;
spin_lock_irqsave(&ring->lock, flags);
if (skb->len == 0) {
netdev_err(netdev, "empty skb received from stack\n");
dev_kfree_skb_any(skb);
goto tx_netdev_return;
}
/* Calculate preliminary packet info */
memset(packet, 0, sizeof(*packet));
xgbe_packet_info(ring, skb, packet);
/* Check that there are enough descriptors available */
if (packet->rdesc_count > xgbe_tx_avail_desc(ring)) {
DBGPR(" Tx queue stopped, not enough descriptors available\n");
netif_stop_subqueue(netdev, channel->queue_index);
ring->tx.queue_stopped = 1;
ret = NETDEV_TX_BUSY;
goto tx_netdev_return;
}
ret = xgbe_prep_tso(skb, packet);
if (ret) {
netdev_err(netdev, "error processing TSO packet\n");
dev_kfree_skb_any(skb);
goto tx_netdev_return;
}
xgbe_prep_vlan(skb, packet);
if (!desc_if->map_tx_skb(channel, skb)) {
dev_kfree_skb_any(skb);
goto tx_netdev_return;
}
/* Configure required descriptor fields for transmission */
hw_if->pre_xmit(channel);
#ifdef XGMAC_ENABLE_TX_PKT_DUMP
xgbe_print_pkt(netdev, skb, true);
#endif
tx_netdev_return:
spin_unlock_irqrestore(&ring->lock, flags);
DBGPR("<--xgbe_xmit\n");
return ret;
}
static void xgbe_set_rx_mode(struct net_device *netdev)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
unsigned int pr_mode, am_mode;
DBGPR("-->xgbe_set_rx_mode\n");
pr_mode = ((netdev->flags & IFF_PROMISC) != 0);
am_mode = ((netdev->flags & IFF_ALLMULTI) != 0);
if (netdev_uc_count(netdev) > pdata->hw_feat.addn_mac)
pr_mode = 1;
if (netdev_mc_count(netdev) > pdata->hw_feat.addn_mac)
am_mode = 1;
if ((netdev_uc_count(netdev) + netdev_mc_count(netdev)) >
pdata->hw_feat.addn_mac)
pr_mode = 1;
hw_if->set_promiscuous_mode(pdata, pr_mode);
hw_if->set_all_multicast_mode(pdata, am_mode);
if (!pr_mode)
hw_if->set_addn_mac_addrs(pdata, am_mode);
DBGPR("<--xgbe_set_rx_mode\n");
}
static int xgbe_set_mac_address(struct net_device *netdev, void *addr)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct sockaddr *saddr = addr;
DBGPR("-->xgbe_set_mac_address\n");
if (!is_valid_ether_addr(saddr->sa_data))
return -EADDRNOTAVAIL;
memcpy(netdev->dev_addr, saddr->sa_data, netdev->addr_len);
hw_if->set_mac_address(pdata, netdev->dev_addr);
DBGPR("<--xgbe_set_mac_address\n");
return 0;
}
static int xgbe_change_mtu(struct net_device *netdev, int mtu)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
int ret;
DBGPR("-->xgbe_change_mtu\n");
ret = xgbe_calc_rx_buf_size(netdev, mtu);
if (ret < 0)
return ret;
pdata->rx_buf_size = ret;
netdev->mtu = mtu;
xgbe_restart_dev(pdata, 0);
DBGPR("<--xgbe_change_mtu\n");
return 0;
}
static struct rtnl_link_stats64 *xgbe_get_stats64(struct net_device *netdev,
struct rtnl_link_stats64 *s)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_mmc_stats *pstats = &pdata->mmc_stats;
DBGPR("-->%s\n", __func__);
pdata->hw_if.read_mmc_stats(pdata);
s->rx_packets = pstats->rxframecount_gb;
s->rx_bytes = pstats->rxoctetcount_gb;
s->rx_errors = pstats->rxframecount_gb -
pstats->rxbroadcastframes_g -
pstats->rxmulticastframes_g -
pstats->rxunicastframes_g;
s->multicast = pstats->rxmulticastframes_g;
s->rx_length_errors = pstats->rxlengtherror;
s->rx_crc_errors = pstats->rxcrcerror;
s->rx_fifo_errors = pstats->rxfifooverflow;
s->tx_packets = pstats->txframecount_gb;
s->tx_bytes = pstats->txoctetcount_gb;
s->tx_errors = pstats->txframecount_gb - pstats->txframecount_g;
s->tx_dropped = netdev->stats.tx_dropped;
DBGPR("<--%s\n", __func__);
return s;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void xgbe_poll_controller(struct net_device *netdev)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
DBGPR("-->xgbe_poll_controller\n");
disable_irq(pdata->irq_number);
xgbe_isr(pdata->irq_number, pdata);
enable_irq(pdata->irq_number);
DBGPR("<--xgbe_poll_controller\n");
}
#endif /* End CONFIG_NET_POLL_CONTROLLER */
static int xgbe_set_features(struct net_device *netdev,
netdev_features_t features)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
unsigned int rxcsum_enabled, rxvlan_enabled;
rxcsum_enabled = !!(pdata->netdev_features & NETIF_F_RXCSUM);
rxvlan_enabled = !!(pdata->netdev_features & NETIF_F_HW_VLAN_CTAG_RX);
if ((features & NETIF_F_RXCSUM) && !rxcsum_enabled) {
hw_if->enable_rx_csum(pdata);
netdev_alert(netdev, "state change - rxcsum enabled\n");
} else if (!(features & NETIF_F_RXCSUM) && rxcsum_enabled) {
hw_if->disable_rx_csum(pdata);
netdev_alert(netdev, "state change - rxcsum disabled\n");
}
if ((features & NETIF_F_HW_VLAN_CTAG_RX) && !rxvlan_enabled) {
hw_if->enable_rx_vlan_stripping(pdata);
netdev_alert(netdev, "state change - rxvlan enabled\n");
} else if (!(features & NETIF_F_HW_VLAN_CTAG_RX) && rxvlan_enabled) {
hw_if->disable_rx_vlan_stripping(pdata);
netdev_alert(netdev, "state change - rxvlan disabled\n");
}
pdata->netdev_features = features;
DBGPR("<--xgbe_set_features\n");
return 0;
}
static const struct net_device_ops xgbe_netdev_ops = {
.ndo_open = xgbe_open,
.ndo_stop = xgbe_close,
.ndo_start_xmit = xgbe_xmit,
.ndo_set_rx_mode = xgbe_set_rx_mode,
.ndo_set_mac_address = xgbe_set_mac_address,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = xgbe_change_mtu,
.ndo_get_stats64 = xgbe_get_stats64,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = xgbe_poll_controller,
#endif
.ndo_set_features = xgbe_set_features,
};
struct net_device_ops *xgbe_get_netdev_ops(void)
{
return (struct net_device_ops *)&xgbe_netdev_ops;
}
static int xgbe_tx_poll(struct xgbe_channel *channel)
{
struct xgbe_prv_data *pdata = channel->pdata;
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_desc_if *desc_if = &pdata->desc_if;
struct xgbe_ring *ring = channel->tx_ring;
struct xgbe_ring_data *rdata;
struct xgbe_ring_desc *rdesc;
struct net_device *netdev = pdata->netdev;
unsigned long flags;
int processed = 0;
DBGPR("-->xgbe_tx_poll\n");
/* Nothing to do if there isn't a Tx ring for this channel */
if (!ring)
return 0;
spin_lock_irqsave(&ring->lock, flags);
while ((processed < TX_DESC_MAX_PROC) && (ring->dirty < ring->cur)) {
rdata = GET_DESC_DATA(ring, ring->dirty);
rdesc = rdata->rdesc;
if (!hw_if->tx_complete(rdesc))
break;
#ifdef XGMAC_ENABLE_TX_DESC_DUMP
xgbe_dump_tx_desc(ring, ring->dirty, 1, 0);
#endif
/* Free the SKB and reset the descriptor for re-use */
desc_if->unmap_skb(pdata, rdata);
hw_if->tx_desc_reset(rdata);
processed++;
ring->dirty++;
}
if ((ring->tx.queue_stopped == 1) &&
(xgbe_tx_avail_desc(ring) > TX_DESC_MIN_FREE)) {
ring->tx.queue_stopped = 0;
netif_wake_subqueue(netdev, channel->queue_index);
}
DBGPR("<--xgbe_tx_poll: processed=%d\n", processed);
spin_unlock_irqrestore(&ring->lock, flags);
return processed;
}
static int xgbe_rx_poll(struct xgbe_channel *channel, int budget)
{
struct xgbe_prv_data *pdata = channel->pdata;
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_desc_if *desc_if = &pdata->desc_if;
struct xgbe_ring *ring = channel->rx_ring;
struct xgbe_ring_data *rdata;
struct xgbe_packet_data *packet;
struct net_device *netdev = pdata->netdev;
struct sk_buff *skb;
unsigned int incomplete, error;
unsigned int cur_len, put_len, max_len;
int received = 0;
DBGPR("-->xgbe_rx_poll: budget=%d\n", budget);
/* Nothing to do if there isn't a Rx ring for this channel */
if (!ring)
return 0;
packet = &ring->packet_data;
while (received < budget) {
DBGPR(" cur = %d\n", ring->cur);
/* Clear the packet data information */
memset(packet, 0, sizeof(*packet));
skb = NULL;
error = 0;
cur_len = 0;
read_again:
rdata = GET_DESC_DATA(ring, ring->cur);
if (hw_if->dev_read(channel))
break;
received++;
ring->cur++;
ring->dirty++;
dma_unmap_single(pdata->dev, rdata->skb_dma,
rdata->skb_dma_len, DMA_FROM_DEVICE);
rdata->skb_dma = 0;
incomplete = XGMAC_GET_BITS(packet->attributes,
RX_PACKET_ATTRIBUTES,
INCOMPLETE);
/* Earlier error, just drain the remaining data */
if (incomplete && error)
goto read_again;
if (error || packet->errors) {
if (packet->errors)
DBGPR("Error in received packet\n");
dev_kfree_skb(skb);
continue;
}
put_len = rdata->len - cur_len;
if (skb) {
if (pskb_expand_head(skb, 0, put_len, GFP_ATOMIC)) {
DBGPR("pskb_expand_head error\n");
if (incomplete) {
error = 1;
goto read_again;
}
dev_kfree_skb(skb);
continue;
}
memcpy(skb_tail_pointer(skb), rdata->skb->data,
put_len);
} else {
skb = rdata->skb;
rdata->skb = NULL;
}
skb_put(skb, put_len);
cur_len += put_len;
if (incomplete)
goto read_again;
/* Be sure we don't exceed the configured MTU */
max_len = netdev->mtu + ETH_HLEN;
if (!(netdev->features & NETIF_F_HW_VLAN_CTAG_RX) &&
(skb->protocol == htons(ETH_P_8021Q)))
max_len += VLAN_HLEN;
if (skb->len > max_len) {
DBGPR("packet length exceeds configured MTU\n");
dev_kfree_skb(skb);
continue;
}
#ifdef XGMAC_ENABLE_RX_PKT_DUMP
xgbe_print_pkt(netdev, skb, false);
#endif
skb_checksum_none_assert(skb);
if (XGMAC_GET_BITS(packet->attributes,
RX_PACKET_ATTRIBUTES, CSUM_DONE))
skb->ip_summed = CHECKSUM_UNNECESSARY;
if (XGMAC_GET_BITS(packet->attributes,
RX_PACKET_ATTRIBUTES, VLAN_CTAG))
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
packet->vlan_ctag);
skb->dev = netdev;
skb->protocol = eth_type_trans(skb, netdev);
skb_record_rx_queue(skb, channel->queue_index);
skb_mark_napi_id(skb, &pdata->napi);
netdev->last_rx = jiffies;
napi_gro_receive(&pdata->napi, skb);
}
if (received) {
desc_if->realloc_skb(channel);
/* Update the Rx Tail Pointer Register with address of
* the last cleaned entry */
rdata = GET_DESC_DATA(ring, ring->rx.realloc_index - 1);
XGMAC_DMA_IOWRITE(channel, DMA_CH_RDTR_LO,
lower_32_bits(rdata->rdesc_dma));
}
DBGPR("<--xgbe_rx_poll: received = %d\n", received);
return received;
}
static int xgbe_poll(struct napi_struct *napi, int budget)
{
struct xgbe_prv_data *pdata = container_of(napi, struct xgbe_prv_data,
napi);
struct xgbe_channel *channel;
int processed;
unsigned int i;
DBGPR("-->xgbe_poll: budget=%d\n", budget);
/* Cleanup Tx ring first */
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++)
xgbe_tx_poll(channel);
/* Process Rx ring next */
processed = 0;
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++)
processed += xgbe_rx_poll(channel, budget - processed);
/* If we processed everything, we are done */
if (processed < budget) {
/* Turn off polling */
napi_complete(napi);
/* Enable Tx and Rx interrupts */
xgbe_enable_rx_tx_ints(pdata);
}
DBGPR("<--xgbe_poll: received = %d\n", processed);
return processed;
}
void xgbe_dump_tx_desc(struct xgbe_ring *ring, unsigned int idx,
unsigned int count, unsigned int flag)
{
struct xgbe_ring_data *rdata;
struct xgbe_ring_desc *rdesc;
while (count--) {
rdata = GET_DESC_DATA(ring, idx);
rdesc = rdata->rdesc;
DBGPR("TX_NORMAL_DESC[%d %s] = %08x:%08x:%08x:%08x\n", idx,
(flag == 1) ? "QUEUED FOR TX" : "TX BY DEVICE",
le32_to_cpu(rdesc->desc0), le32_to_cpu(rdesc->desc1),
le32_to_cpu(rdesc->desc2), le32_to_cpu(rdesc->desc3));
idx++;
}
}
void xgbe_dump_rx_desc(struct xgbe_ring *ring, struct xgbe_ring_desc *desc,
unsigned int idx)
{
DBGPR("RX_NORMAL_DESC[%d RX BY DEVICE] = %08x:%08x:%08x:%08x\n", idx,
le32_to_cpu(desc->desc0), le32_to_cpu(desc->desc1),
le32_to_cpu(desc->desc2), le32_to_cpu(desc->desc3));
}
void xgbe_print_pkt(struct net_device *netdev, struct sk_buff *skb, bool tx_rx)
{
struct ethhdr *eth = (struct ethhdr *)skb->data;
unsigned char *buf = skb->data;
unsigned char buffer[128];
unsigned int i, j;
netdev_alert(netdev, "\n************** SKB dump ****************\n");
netdev_alert(netdev, "%s packet of %d bytes\n",
(tx_rx ? "TX" : "RX"), skb->len);
netdev_alert(netdev, "Dst MAC addr: %pM\n", eth->h_dest);
netdev_alert(netdev, "Src MAC addr: %pM\n", eth->h_source);
netdev_alert(netdev, "Protocol: 0x%04hx\n", ntohs(eth->h_proto));
for (i = 0, j = 0; i < skb->len;) {
j += snprintf(buffer + j, sizeof(buffer) - j, "%02hhx",
buf[i++]);
if ((i % 32) == 0) {
netdev_alert(netdev, " 0x%04x: %s\n", i - 32, buffer);
j = 0;
} else if ((i % 16) == 0) {
buffer[j++] = ' ';
buffer[j++] = ' ';
} else if ((i % 4) == 0) {
buffer[j++] = ' ';
}
}
if (i % 32)
netdev_alert(netdev, " 0x%04x: %s\n", i - (i % 32), buffer);
netdev_alert(netdev, "\n************** SKB dump ****************\n");
}
drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c 0 → 100644
浏览文件 @ c5aa9e3b
/*
* AMD 10Gb Ethernet driver
*
* This file is available to you under your choice of the following two
* licenses:
*
* License 1: GPLv2
*
* Copyright (c) 2014 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 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 <linux/spinlock.h>
#include <linux/phy.h>
#include "xgbe.h"
#include "xgbe-common.h"
struct xgbe_stats {
char stat_string[ETH_GSTRING_LEN];
int stat_size;
int stat_offset;
};
#define XGMAC_MMC_STAT(_string, _var) \
{ _string, \
FIELD_SIZEOF(struct xgbe_mmc_stats, _var), \
offsetof(struct xgbe_prv_data, mmc_stats._var), \
}
static const struct xgbe_stats xgbe_gstring_stats[] = {
XGMAC_MMC_STAT("tx_bytes", txoctetcount_gb),
XGMAC_MMC_STAT("tx_packets", txframecount_gb),
XGMAC_MMC_STAT("tx_unicast_packets", txunicastframes_gb),
XGMAC_MMC_STAT("tx_broadcast_packets", txbroadcastframes_gb),
XGMAC_MMC_STAT("tx_multicast_packets", txmulticastframes_gb),
XGMAC_MMC_STAT("tx_vlan_packets", txvlanframes_g),
XGMAC_MMC_STAT("tx_64_byte_packets", tx64octets_gb),
XGMAC_MMC_STAT("tx_65_to_127_byte_packets", tx65to127octets_gb),
XGMAC_MMC_STAT("tx_128_to_255_byte_packets", tx128to255octets_gb),
XGMAC_MMC_STAT("tx_256_to_511_byte_packets", tx256to511octets_gb),
XGMAC_MMC_STAT("tx_512_to_1023_byte_packets", tx512to1023octets_gb),
XGMAC_MMC_STAT("tx_1024_to_max_byte_packets", tx1024tomaxoctets_gb),
XGMAC_MMC_STAT("tx_underflow_errors", txunderflowerror),
XGMAC_MMC_STAT("tx_pause_frames", txpauseframes),
XGMAC_MMC_STAT("rx_bytes", rxoctetcount_gb),
XGMAC_MMC_STAT("rx_packets", rxframecount_gb),
XGMAC_MMC_STAT("rx_unicast_packets", rxunicastframes_g),
XGMAC_MMC_STAT("rx_broadcast_packets", rxbroadcastframes_g),
XGMAC_MMC_STAT("rx_multicast_packets", rxmulticastframes_g),
XGMAC_MMC_STAT("rx_vlan_packets", rxvlanframes_gb),
XGMAC_MMC_STAT("rx_64_byte_packets", rx64octets_gb),
XGMAC_MMC_STAT("rx_65_to_127_byte_packets", rx65to127octets_gb),
XGMAC_MMC_STAT("rx_128_to_255_byte_packets", rx128to255octets_gb),
XGMAC_MMC_STAT("rx_256_to_511_byte_packets", rx256to511octets_gb),
XGMAC_MMC_STAT("rx_512_to_1023_byte_packets", rx512to1023octets_gb),
XGMAC_MMC_STAT("rx_1024_to_max_byte_packets", rx1024tomaxoctets_gb),
XGMAC_MMC_STAT("rx_undersize_packets", rxundersize_g),
XGMAC_MMC_STAT("rx_oversize_packets", rxoversize_g),
XGMAC_MMC_STAT("rx_crc_errors", rxcrcerror),
XGMAC_MMC_STAT("rx_crc_errors_small_packets", rxrunterror),
XGMAC_MMC_STAT("rx_crc_errors_giant_packets", rxjabbererror),
XGMAC_MMC_STAT("rx_length_errors", rxlengtherror),
XGMAC_MMC_STAT("rx_out_of_range_errors", rxoutofrangetype),
XGMAC_MMC_STAT("rx_fifo_overflow_errors", rxfifooverflow),
XGMAC_MMC_STAT("rx_watchdog_errors", rxwatchdogerror),
XGMAC_MMC_STAT("rx_pause_frames", rxpauseframes),
};
#define XGBE_STATS_COUNT ARRAY_SIZE(xgbe_gstring_stats)
static void xgbe_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
int i;
DBGPR("-->%s\n", __func__);
switch (stringset) {
case ETH_SS_STATS:
for (i = 0; i < XGBE_STATS_COUNT; i++) {
memcpy(data, xgbe_gstring_stats[i].stat_string,
ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
break;
}
DBGPR("<--%s\n", __func__);
}
static void xgbe_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
u8 *stat;
int i;
DBGPR("-->%s\n", __func__);
pdata->hw_if.read_mmc_stats(pdata);
for (i = 0; i < XGBE_STATS_COUNT; i++) {
stat = (u8 *)pdata + xgbe_gstring_stats[i].stat_offset;
*data++ = *(u64 *)stat;
}
DBGPR("<--%s\n", __func__);
}
static int xgbe_get_sset_count(struct net_device *netdev, int stringset)
{
int ret;
DBGPR("-->%s\n", __func__);
switch (stringset) {
case ETH_SS_STATS:
ret = XGBE_STATS_COUNT;
break;
default:
ret = -EOPNOTSUPP;
}
DBGPR("<--%s\n", __func__);
return ret;
}
static void xgbe_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
DBGPR("-->xgbe_get_pauseparam\n");
pause->autoneg = pdata->pause_autoneg;
pause->tx_pause = pdata->tx_pause;
pause->rx_pause = pdata->rx_pause;
DBGPR("<--xgbe_get_pauseparam\n");
}
static int xgbe_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct phy_device *phydev = pdata->phydev;
int ret = 0;
DBGPR("-->xgbe_set_pauseparam\n");
DBGPR(" autoneg = %d, tx_pause = %d, rx_pause = %d\n",
pause->autoneg, pause->tx_pause, pause->rx_pause);
pdata->pause_autoneg = pause->autoneg;
if (pause->autoneg) {
phydev->advertising |= ADVERTISED_Pause;
phydev->advertising |= ADVERTISED_Asym_Pause;
} else {
phydev->advertising &= ~ADVERTISED_Pause;
phydev->advertising &= ~ADVERTISED_Asym_Pause;
pdata->tx_pause = pause->tx_pause;
pdata->rx_pause = pause->rx_pause;
}
if (netif_running(netdev))
ret = phy_start_aneg(phydev);
DBGPR("<--xgbe_set_pauseparam\n");
return ret;
}
static int xgbe_get_settings(struct net_device *netdev,
struct ethtool_cmd *cmd)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
int ret;
DBGPR("-->xgbe_get_settings\n");
if (!pdata->phydev)
return -ENODEV;
spin_lock_irq(&pdata->lock);
ret = phy_ethtool_gset(pdata->phydev, cmd);
cmd->transceiver = XCVR_EXTERNAL;
spin_unlock_irq(&pdata->lock);
DBGPR("<--xgbe_get_settings\n");
return ret;
}
static int xgbe_set_settings(struct net_device *netdev,
struct ethtool_cmd *cmd)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct phy_device *phydev = pdata->phydev;
u32 speed;
int ret;
DBGPR("-->xgbe_set_settings\n");
if (!pdata->phydev)
return -ENODEV;
spin_lock_irq(&pdata->lock);
speed = ethtool_cmd_speed(cmd);
ret = -EINVAL;
if (cmd->phy_address != phydev->addr)
goto unlock;
if ((cmd->autoneg != AUTONEG_ENABLE) &&
(cmd->autoneg != AUTONEG_DISABLE))
goto unlock;
if ((cmd->autoneg == AUTONEG_DISABLE) &&
(((speed != SPEED_10000) && (speed != SPEED_1000)) ||
(cmd->duplex != DUPLEX_FULL)))
goto unlock;
if (cmd->autoneg == AUTONEG_ENABLE) {
/* Clear settings needed to force speeds */
phydev->supported &= ~SUPPORTED_1000baseT_Full;
phydev->supported &= ~SUPPORTED_10000baseT_Full;
} else {
/* Add settings needed to force speed */
phydev->supported |= SUPPORTED_1000baseT_Full;
phydev->supported |= SUPPORTED_10000baseT_Full;
}
cmd->advertising &= phydev->supported;
if ((cmd->autoneg == AUTONEG_ENABLE) && !cmd->advertising)
goto unlock;
ret = 0;
phydev->autoneg = cmd->autoneg;
phydev->speed = speed;
phydev->duplex = cmd->duplex;
phydev->advertising = cmd->advertising;
if (cmd->autoneg == AUTONEG_ENABLE)
phydev->advertising |= ADVERTISED_Autoneg;
else
phydev->advertising &= ~ADVERTISED_Autoneg;
if (netif_running(netdev))
ret = phy_start_aneg(phydev);
unlock:
spin_unlock_irq(&pdata->lock);
DBGPR("<--xgbe_set_settings\n");
return ret;
}
static void xgbe_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *drvinfo)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
strlcpy(drvinfo->driver, XGBE_DRV_NAME, sizeof(drvinfo->driver));
strlcpy(drvinfo->version, XGBE_DRV_VERSION, sizeof(drvinfo->version));
strlcpy(drvinfo->bus_info, dev_name(pdata->dev),
sizeof(drvinfo->bus_info));
snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d.%d.%d",
XGMAC_IOREAD_BITS(pdata, MAC_VR, USERVER),
XGMAC_IOREAD_BITS(pdata, MAC_VR, DEVID),
XGMAC_IOREAD_BITS(pdata, MAC_VR, SNPSVER));
drvinfo->n_stats = XGBE_STATS_COUNT;
}
static int xgbe_get_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ec)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
unsigned int riwt;
DBGPR("-->xgbe_get_coalesce\n");
memset(ec, 0, sizeof(struct ethtool_coalesce));
riwt = pdata->rx_riwt;
ec->rx_coalesce_usecs = hw_if->riwt_to_usec(pdata, riwt);
ec->rx_max_coalesced_frames = pdata->rx_frames;
ec->tx_coalesce_usecs = pdata->tx_usecs;
ec->tx_max_coalesced_frames = pdata->tx_frames;
DBGPR("<--xgbe_get_coalesce\n");
return 0;
}
static int xgbe_set_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ec)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
unsigned int rx_frames, rx_riwt, rx_usecs;
unsigned int tx_frames, tx_usecs;
DBGPR("-->xgbe_set_coalesce\n");
/* Check for not supported parameters */
if ((ec->rx_coalesce_usecs_irq) ||
(ec->rx_max_coalesced_frames_irq) ||
(ec->tx_coalesce_usecs_irq) ||
(ec->tx_max_coalesced_frames_irq) ||
(ec->stats_block_coalesce_usecs) ||
(ec->use_adaptive_rx_coalesce) ||
(ec->use_adaptive_tx_coalesce) ||
(ec->pkt_rate_low) ||
(ec->rx_coalesce_usecs_low) ||
(ec->rx_max_coalesced_frames_low) ||
(ec->tx_coalesce_usecs_low) ||
(ec->tx_max_coalesced_frames_low) ||
(ec->pkt_rate_high) ||
(ec->rx_coalesce_usecs_high) ||
(ec->rx_max_coalesced_frames_high) ||
(ec->tx_coalesce_usecs_high) ||
(ec->tx_max_coalesced_frames_high) ||
(ec->rate_sample_interval))
return -EOPNOTSUPP;
/* Can only change rx-frames when interface is down (see
* rx_descriptor_init in xgbe-dev.c)
*/
rx_frames = pdata->rx_frames;
if (rx_frames != ec->rx_max_coalesced_frames && netif_running(netdev)) {
netdev_alert(netdev,
"interface must be down to change rx-frames\n");
return -EINVAL;
}
rx_riwt = hw_if->usec_to_riwt(pdata, ec->rx_coalesce_usecs);
rx_frames = ec->rx_max_coalesced_frames;
/* Use smallest possible value if conversion resulted in zero */
if (ec->rx_coalesce_usecs && !rx_riwt)
rx_riwt = 1;
/* Check the bounds of values for Rx */
if (rx_riwt > XGMAC_MAX_DMA_RIWT) {
rx_usecs = hw_if->riwt_to_usec(pdata, XGMAC_MAX_DMA_RIWT);
netdev_alert(netdev, "rx-usec is limited to %d usecs\n",
rx_usecs);
return -EINVAL;
}
if (rx_frames > pdata->channel->rx_ring->rdesc_count) {
netdev_alert(netdev, "rx-frames is limited to %d frames\n",
pdata->channel->rx_ring->rdesc_count);
return -EINVAL;
}
tx_usecs = ec->tx_coalesce_usecs;
tx_frames = ec->tx_max_coalesced_frames;
/* Check the bounds of values for Tx */
if (tx_frames > pdata->channel->tx_ring->rdesc_count) {
netdev_alert(netdev, "tx-frames is limited to %d frames\n",
pdata->channel->tx_ring->rdesc_count);
return -EINVAL;
}
pdata->rx_riwt = rx_riwt;
pdata->rx_frames = rx_frames;
hw_if->config_rx_coalesce(pdata);
pdata->tx_usecs = tx_usecs;
pdata->tx_frames = tx_frames;
hw_if->config_tx_coalesce(pdata);
DBGPR("<--xgbe_set_coalesce\n");
return 0;
}
static const struct ethtool_ops xgbe_ethtool_ops = {
.get_settings = xgbe_get_settings,
.set_settings = xgbe_set_settings,
.get_drvinfo = xgbe_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_coalesce = xgbe_get_coalesce,
.set_coalesce = xgbe_set_coalesce,
.get_pauseparam = xgbe_get_pauseparam,
.set_pauseparam = xgbe_set_pauseparam,
.get_strings = xgbe_get_strings,
.get_ethtool_stats = xgbe_get_ethtool_stats,
.get_sset_count = xgbe_get_sset_count,
};
struct ethtool_ops *xgbe_get_ethtool_ops(void)
{
return (struct ethtool_ops *)&xgbe_ethtool_ops;
}
drivers/net/ethernet/amd/xgbe/xgbe-main.c 0 → 100644
浏览文件 @ c5aa9e3b
/*
* AMD 10Gb Ethernet driver
*
* This file is available to you under your choice of the following two
* licenses:
*
* License 1: GPLv2
*
* Copyright (c) 2014 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 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 <linux/module.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_net.h>
#include <linux/clk.h>
#include "xgbe.h"
#include "xgbe-common.h"
MODULE_AUTHOR("Tom Lendacky <thomas.lendacky@amd.com>");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(XGBE_DRV_VERSION);
MODULE_DESCRIPTION(XGBE_DRV_DESC);
static struct xgbe_channel *xgbe_alloc_rings(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel_mem, *channel;
struct xgbe_ring *tx_ring, *rx_ring;
unsigned int count, i;
DBGPR("-->xgbe_alloc_rings\n");
count = max_t(unsigned int, pdata->tx_ring_count, pdata->rx_ring_count);
channel_mem = devm_kcalloc(pdata->dev, count,
sizeof(struct xgbe_channel), GFP_KERNEL);
if (!channel_mem)
return NULL;
tx_ring = devm_kcalloc(pdata->dev, pdata->tx_ring_count,
sizeof(struct xgbe_ring), GFP_KERNEL);
if (!tx_ring)
return NULL;
rx_ring = devm_kcalloc(pdata->dev, pdata->rx_ring_count,
sizeof(struct xgbe_ring), GFP_KERNEL);
if (!rx_ring)
return NULL;
for (i = 0, channel = channel_mem; i < count; i++, channel++) {
snprintf(channel->name, sizeof(channel->name), "channel-%d", i);
channel->pdata = pdata;
channel->queue_index = i;
channel->dma_regs = pdata->xgmac_regs + DMA_CH_BASE +
(DMA_CH_INC * i);
if (i < pdata->tx_ring_count) {
spin_lock_init(&tx_ring->lock);
channel->tx_ring = tx_ring++;
}
if (i < pdata->rx_ring_count) {
spin_lock_init(&tx_ring->lock);
channel->rx_ring = rx_ring++;
}
DBGPR(" %s - queue_index=%u, dma_regs=%p, tx=%p, rx=%p\n",
channel->name, channel->queue_index, channel->dma_regs,
channel->tx_ring, channel->rx_ring);
}
pdata->channel_count = count;
DBGPR("<--xgbe_alloc_rings\n");
return channel_mem;
}
static void xgbe_default_config(struct xgbe_prv_data *pdata)
{
DBGPR("-->xgbe_default_config\n");
pdata->pblx8 = DMA_PBL_X8_ENABLE;
pdata->tx_sf_mode = MTL_TSF_ENABLE;
pdata->tx_threshold = MTL_TX_THRESHOLD_64;
pdata->tx_pbl = DMA_PBL_16;
pdata->tx_osp_mode = DMA_OSP_ENABLE;
pdata->rx_sf_mode = MTL_RSF_DISABLE;
pdata->rx_threshold = MTL_RX_THRESHOLD_64;
pdata->rx_pbl = DMA_PBL_16;
pdata->pause_autoneg = 1;
pdata->tx_pause = 1;
pdata->rx_pause = 1;
pdata->power_down = 0;
pdata->default_autoneg = AUTONEG_ENABLE;
pdata->default_speed = SPEED_10000;
DBGPR("<--xgbe_default_config\n");
}
static void xgbe_init_all_fptrs(struct xgbe_prv_data *pdata)
{
xgbe_init_function_ptrs_dev(&pdata->hw_if);
xgbe_init_function_ptrs_desc(&pdata->desc_if);
}
static int xgbe_probe(struct platform_device *pdev)
{
struct xgbe_prv_data *pdata;
struct xgbe_hw_if *hw_if;
struct xgbe_desc_if *desc_if;
struct net_device *netdev;
struct device *dev = &pdev->dev;
struct resource *res;
const u8 *mac_addr;
int ret;
DBGPR("--> xgbe_probe\n");
netdev = alloc_etherdev_mq(sizeof(struct xgbe_prv_data),
MAX_DMA_CHANNELS);
if (!netdev) {
dev_err(dev, "alloc_etherdev failed\n");
ret = -ENOMEM;
goto err_alloc;
}
SET_NETDEV_DEV(netdev, dev);
pdata = netdev_priv(netdev);
pdata->netdev = netdev;
pdata->pdev = pdev;
pdata->dev = dev;
platform_set_drvdata(pdev, netdev);
spin_lock_init(&pdata->lock);
mutex_init(&pdata->xpcs_mutex);
/* Set and validate the number of descriptors for a ring */
BUILD_BUG_ON_NOT_POWER_OF_2(TX_DESC_CNT);
pdata->tx_desc_count = TX_DESC_CNT;
if (pdata->tx_desc_count & (pdata->tx_desc_count - 1)) {
dev_err(dev, "tx descriptor count (%d) is not valid\n",
pdata->tx_desc_count);
ret = -EINVAL;
goto err_io;
}
BUILD_BUG_ON_NOT_POWER_OF_2(RX_DESC_CNT);
pdata->rx_desc_count = RX_DESC_CNT;
if (pdata->rx_desc_count & (pdata->rx_desc_count - 1)) {
dev_err(dev, "rx descriptor count (%d) is not valid\n",
pdata->rx_desc_count);
ret = -EINVAL;
goto err_io;
}
/* Obtain the system clock setting */
pdata->sysclock = devm_clk_get(dev, NULL);
if (IS_ERR(pdata->sysclock)) {
dev_err(dev, "devm_clk_get failed\n");
ret = PTR_ERR(pdata->sysclock);
goto err_io;
}
/* Obtain the mmio areas for the device */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pdata->xgmac_regs = devm_ioremap_resource(dev, res);
if (IS_ERR(pdata->xgmac_regs)) {
dev_err(dev, "xgmac ioremap failed\n");
ret = PTR_ERR(pdata->xgmac_regs);
goto err_io;
}
DBGPR(" xgmac_regs = %p\n", pdata->xgmac_regs);
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
pdata->xpcs_regs = devm_ioremap_resource(dev, res);
if (IS_ERR(pdata->xpcs_regs)) {
dev_err(dev, "xpcs ioremap failed\n");
ret = PTR_ERR(pdata->xpcs_regs);
goto err_io;
}
DBGPR(" xpcs_regs = %p\n", pdata->xpcs_regs);
/* Set the DMA mask */
if (!dev->dma_mask)
dev->dma_mask = &dev->coherent_dma_mask;
*(dev->dma_mask) = DMA_BIT_MASK(40);
dev->coherent_dma_mask = DMA_BIT_MASK(40);
ret = platform_get_irq(pdev, 0);
if (ret < 0) {
dev_err(dev, "platform_get_irq failed\n");
goto err_io;
}
netdev->irq = ret;
netdev->base_addr = (unsigned long)pdata->xgmac_regs;
/* Set all the function pointers */
xgbe_init_all_fptrs(pdata);
hw_if = &pdata->hw_if;
desc_if = &pdata->desc_if;
/* Issue software reset to device */
hw_if->exit(pdata);
/* Populate the hardware features */
xgbe_get_all_hw_features(pdata);
/* Retrieve the MAC address */
mac_addr = of_get_mac_address(dev->of_node);
if (!mac_addr) {
dev_err(dev, "invalid mac address for this device\n");
ret = -EINVAL;
goto err_io;
}
memcpy(netdev->dev_addr, mac_addr, netdev->addr_len);
/* Retrieve the PHY mode - it must be "xgmii" */
pdata->phy_mode = of_get_phy_mode(dev->of_node);
if (pdata->phy_mode != PHY_INTERFACE_MODE_XGMII) {
dev_err(dev, "invalid phy-mode specified for this device\n");
ret = -EINVAL;
goto err_io;
}
/* Set default configuration data */
xgbe_default_config(pdata);
/* Calculate the number of Tx and Rx rings to be created */
pdata->tx_ring_count = min_t(unsigned int, num_online_cpus(),
pdata->hw_feat.tx_ch_cnt);
if (netif_set_real_num_tx_queues(netdev, pdata->tx_ring_count)) {
dev_err(dev, "error setting real tx queue count\n");
goto err_io;
}
pdata->rx_ring_count = min_t(unsigned int,
netif_get_num_default_rss_queues(),
pdata->hw_feat.rx_ch_cnt);
ret = netif_set_real_num_rx_queues(netdev, pdata->rx_ring_count);
if (ret) {
dev_err(dev, "error setting real rx queue count\n");
goto err_io;
}
/* Allocate the rings for the DMA channels */
pdata->channel = xgbe_alloc_rings(pdata);
if (!pdata->channel) {
dev_err(dev, "ring allocation failed\n");
ret = -ENOMEM;
goto err_io;
}
/* Prepare to regsiter with MDIO */
pdata->mii_bus_id = kasprintf(GFP_KERNEL, "%s", pdev->name);
if (!pdata->mii_bus_id) {
dev_err(dev, "failed to allocate mii bus id\n");
ret = -ENOMEM;
goto err_io;
}
ret = xgbe_mdio_register(pdata);
if (ret)
goto err_bus_id;
/* Set network and ethtool operations */
netdev->netdev_ops = xgbe_get_netdev_ops();
netdev->ethtool_ops = xgbe_get_ethtool_ops();
/* Set device features */
netdev->hw_features = NETIF_F_SG |
NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM |
NETIF_F_RXCSUM |
NETIF_F_TSO |
NETIF_F_TSO6 |
NETIF_F_GRO |
NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_CTAG_TX;
netdev->vlan_features |= NETIF_F_SG |
NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM |
NETIF_F_TSO |
NETIF_F_TSO6;
netdev->features |= netdev->hw_features;
pdata->netdev_features = netdev->features;
xgbe_init_rx_coalesce(pdata);
xgbe_init_tx_coalesce(pdata);
netif_carrier_off(netdev);
ret = register_netdev(netdev);
if (ret) {
dev_err(dev, "net device registration failed\n");
goto err_reg_netdev;
}
xgbe_debugfs_init(pdata);
netdev_notice(netdev, "net device enabled\n");
DBGPR("<-- xgbe_probe\n");
return 0;
err_reg_netdev:
xgbe_mdio_unregister(pdata);
err_bus_id:
kfree(pdata->mii_bus_id);
err_io:
free_netdev(netdev);
err_alloc:
dev_notice(dev, "net device not enabled\n");
return ret;
}
static int xgbe_remove(struct platform_device *pdev)
{
struct net_device *netdev = platform_get_drvdata(pdev);
struct xgbe_prv_data *pdata = netdev_priv(netdev);
DBGPR("-->xgbe_remove\n");
xgbe_debugfs_exit(pdata);
unregister_netdev(netdev);
xgbe_mdio_unregister(pdata);
kfree(pdata->mii_bus_id);
free_netdev(netdev);
DBGPR("<--xgbe_remove\n");
return 0;
}
#ifdef CONFIG_PM
static int xgbe_suspend(struct device *dev)
{
struct net_device *netdev = dev_get_drvdata(dev);
int ret;
DBGPR("-->xgbe_suspend\n");
if (!netif_running(netdev)) {
DBGPR("<--xgbe_dev_suspend\n");
return -EINVAL;
}
ret = xgbe_powerdown(netdev, XGMAC_DRIVER_CONTEXT);
DBGPR("<--xgbe_suspend\n");
return ret;
}
static int xgbe_resume(struct device *dev)
{
struct net_device *netdev = dev_get_drvdata(dev);
int ret;
DBGPR("-->xgbe_resume\n");
if (!netif_running(netdev)) {
DBGPR("<--xgbe_dev_resume\n");
return -EINVAL;
}
ret = xgbe_powerup(netdev, XGMAC_DRIVER_CONTEXT);
DBGPR("<--xgbe_resume\n");
return ret;
}
#endif /* CONFIG_PM */
static const struct of_device_id xgbe_of_match[] = {
{ .compatible = "amd,xgbe-seattle-v1a", },
{},
};
MODULE_DEVICE_TABLE(of, xgbe_of_match);
static SIMPLE_DEV_PM_OPS(xgbe_pm_ops, xgbe_suspend, xgbe_resume);
static struct platform_driver xgbe_driver = {
.driver = {
.name = "amd-xgbe",
.of_match_table = xgbe_of_match,
.pm = &xgbe_pm_ops,
},
.probe = xgbe_probe,
.remove = xgbe_remove,
};
module_platform_driver(xgbe_driver);
drivers/net/ethernet/amd/xgbe/xgbe-mdio.c 0 → 100644
浏览文件 @ c5aa9e3b
/*
* AMD 10Gb Ethernet driver
*
* This file is available to you under your choice of the following two
* licenses:
*
* License 1: GPLv2
*
* Copyright (c) 2014 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 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 <linux/module.h>
#include <linux/kmod.h>
#include <linux/spinlock.h>
#include <linux/mdio.h>
#include <linux/phy.h>
#include <linux/of.h>
#include "xgbe.h"
#include "xgbe-common.h"
static int xgbe_mdio_read(struct mii_bus *mii, int prtad, int mmd_reg)
{
struct xgbe_prv_data *pdata = mii->priv;
struct xgbe_hw_if *hw_if = &pdata->hw_if;
int mmd_data;
DBGPR_MDIO("-->xgbe_mdio_read: prtad=%#x mmd_reg=%#x\n",
prtad, mmd_reg);
mmd_data = hw_if->read_mmd_regs(pdata, prtad, mmd_reg);
DBGPR_MDIO("<--xgbe_mdio_read: mmd_data=%#x\n", mmd_data);
return mmd_data;
}
static int xgbe_mdio_write(struct mii_bus *mii, int prtad, int mmd_reg,
u16 mmd_val)
{
struct xgbe_prv_data *pdata = mii->priv;
struct xgbe_hw_if *hw_if = &pdata->hw_if;
int mmd_data = mmd_val;
DBGPR_MDIO("-->xgbe_mdio_write: prtad=%#x mmd_reg=%#x mmd_data=%#x\n",
prtad, mmd_reg, mmd_data);
hw_if->write_mmd_regs(pdata, prtad, mmd_reg, mmd_data);
DBGPR_MDIO("<--xgbe_mdio_write\n");
return 0;
}
static void xgbe_adjust_link(struct net_device *netdev)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct phy_device *phydev = pdata->phydev;
unsigned long flags;
int new_state = 0;
if (phydev == NULL)
return;
DBGPR_MDIO("-->xgbe_adjust_link: address=%d, newlink=%d, curlink=%d\n",
phydev->addr, phydev->link, pdata->phy_link);
spin_lock_irqsave(&pdata->lock, flags);
if (phydev->link) {
/* Flow control support */
if (pdata->pause_autoneg) {
if (phydev->pause || phydev->asym_pause) {
pdata->tx_pause = 1;
pdata->rx_pause = 1;
} else {
pdata->tx_pause = 0;
pdata->rx_pause = 0;
}
}
if (pdata->tx_pause != pdata->phy_tx_pause) {
hw_if->config_tx_flow_control(pdata);
pdata->phy_tx_pause = pdata->tx_pause;
}
if (pdata->rx_pause != pdata->phy_rx_pause) {
hw_if->config_rx_flow_control(pdata);
pdata->phy_rx_pause = pdata->rx_pause;
}
/* Speed support */
if (phydev->speed != pdata->phy_speed) {
new_state = 1;
switch (phydev->speed) {
case SPEED_10000:
hw_if->set_xgmii_speed(pdata);
break;
case SPEED_2500:
hw_if->set_gmii_2500_speed(pdata);
break;
case SPEED_1000:
hw_if->set_gmii_speed(pdata);
break;
}
pdata->phy_speed = phydev->speed;
}
if (phydev->link != pdata->phy_link) {
new_state = 1;
pdata->phy_link = 1;
}
} else if (pdata->phy_link) {
new_state = 1;
pdata->phy_link = 0;
pdata->phy_speed = SPEED_UNKNOWN;
}
if (new_state)
phy_print_status(phydev);
spin_unlock_irqrestore(&pdata->lock, flags);
DBGPR_MDIO("<--xgbe_adjust_link\n");
}
void xgbe_dump_phy_registers(struct xgbe_prv_data *pdata)
{
struct device *dev = pdata->dev;
struct phy_device *phydev = pdata->mii->phy_map[XGBE_PRTAD];
int i;
dev_alert(dev, "\n************* PHY Reg dump **********************\n");
dev_alert(dev, "PCS Control Reg (%#04x) = %#04x\n", MDIO_CTRL1,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1));
dev_alert(dev, "PCS Status Reg (%#04x) = %#04x\n", MDIO_STAT1,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_STAT1));
dev_alert(dev, "Phy Id (PHYS ID 1 %#04x)= %#04x\n", MDIO_DEVID1,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_DEVID1));
dev_alert(dev, "Phy Id (PHYS ID 2 %#04x)= %#04x\n", MDIO_DEVID2,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_DEVID2));
dev_alert(dev, "Devices in Package (%#04x)= %#04x\n", MDIO_DEVS1,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_DEVS1));
dev_alert(dev, "Devices in Package (%#04x)= %#04x\n", MDIO_DEVS2,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_DEVS2));
dev_alert(dev, "Auto-Neg Control Reg (%#04x) = %#04x\n", MDIO_CTRL1,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_CTRL1));
dev_alert(dev, "Auto-Neg Status Reg (%#04x) = %#04x\n", MDIO_STAT1,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_STAT1));
dev_alert(dev, "Auto-Neg Ad Reg 1 (%#04x) = %#04x\n",
MDIO_AN_ADVERTISE,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE));
dev_alert(dev, "Auto-Neg Ad Reg 2 (%#04x) = %#04x\n",
MDIO_AN_ADVERTISE + 1,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 1));
dev_alert(dev, "Auto-Neg Ad Reg 3 (%#04x) = %#04x\n",
MDIO_AN_ADVERTISE + 2,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 2));
dev_alert(dev, "Auto-Neg Completion Reg (%#04x) = %#04x\n",
MDIO_AN_COMP_STAT,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_COMP_STAT));
dev_alert(dev, "MMD Device Mask = %#x\n",
phydev->c45_ids.devices_in_package);
for (i = 0; i < ARRAY_SIZE(phydev->c45_ids.device_ids); i++)
dev_alert(dev, " MMD %d: ID = %#08x\n", i,
phydev->c45_ids.device_ids[i]);
dev_alert(dev, "\n*************************************************\n");
}
int xgbe_mdio_register(struct xgbe_prv_data *pdata)
{
struct net_device *netdev = pdata->netdev;
struct device_node *phy_node;
struct mii_bus *mii;
struct phy_device *phydev;
int ret = 0;
DBGPR("-->xgbe_mdio_register\n");
/* Retrieve the phy-handle */
phy_node = of_parse_phandle(pdata->dev->of_node, "phy-handle", 0);
if (!phy_node) {
dev_err(pdata->dev, "unable to parse phy-handle\n");
return -EINVAL;
}
/* Register with the MDIO bus */
mii = mdiobus_alloc();
if (mii == NULL) {
dev_err(pdata->dev, "mdiobus_alloc failed\n");
ret = -ENOMEM;
goto err_node_get;
}
/* Register on the MDIO bus (don't probe any PHYs) */
mii->name = XGBE_PHY_NAME;
mii->read = xgbe_mdio_read;
mii->write = xgbe_mdio_write;
snprintf(mii->id, sizeof(mii->id), "%s", pdata->mii_bus_id);
mii->priv = pdata;
mii->phy_mask = ~0;
mii->parent = pdata->dev;
ret = mdiobus_register(mii);
if (ret) {
dev_err(pdata->dev, "mdiobus_register failed\n");
goto err_mdiobus_alloc;
}
DBGPR(" mdiobus_register succeeded for %s\n", pdata->mii_bus_id);
/* Probe the PCS using Clause 45 */
phydev = get_phy_device(mii, XGBE_PRTAD, true);
if (IS_ERR(phydev) || !phydev ||
!phydev->c45_ids.device_ids[MDIO_MMD_PCS]) {
dev_err(pdata->dev, "get_phy_device failed\n");
ret = phydev ? PTR_ERR(phydev) : -ENOLINK;
goto err_mdiobus_register;
}
request_module(MDIO_MODULE_PREFIX MDIO_ID_FMT,
MDIO_ID_ARGS(phydev->c45_ids.device_ids[MDIO_MMD_PCS]));
of_node_get(phy_node);
phydev->dev.of_node = phy_node;
ret = phy_device_register(phydev);
if (ret) {
dev_err(pdata->dev, "phy_device_register failed\n");
of_node_put(phy_node);
goto err_phy_device;
}
/* Add a reference to the PHY driver so it can't be unloaded */
pdata->phy_module = phydev->dev.driver ?
phydev->dev.driver->owner : NULL;
if (!try_module_get(pdata->phy_module)) {
dev_err(pdata->dev, "try_module_get failed\n");
ret = -EIO;
goto err_phy_device;
}
pdata->mii = mii;
pdata->mdio_mmd = MDIO_MMD_PCS;
pdata->phy_link = -1;
pdata->phy_speed = SPEED_UNKNOWN;
pdata->phy_tx_pause = pdata->tx_pause;
pdata->phy_rx_pause = pdata->rx_pause;
ret = phy_connect_direct(netdev, phydev, &xgbe_adjust_link,
pdata->phy_mode);
if (ret) {
netdev_err(netdev, "phy_connect_direct failed\n");
goto err_phy_device;
}
if (!phydev->drv || (phydev->drv->phy_id == 0)) {
netdev_err(netdev, "phy_id not valid\n");
return -ENODEV;
goto err_phy_connect;
}
DBGPR(" phy_connect_direct succeeded for PHY %s, link=%d\n",
dev_name(&phydev->dev), phydev->link);
phydev->autoneg = pdata->default_autoneg;
if (phydev->autoneg == AUTONEG_DISABLE) {
/* Add settings needed to force speed */
phydev->supported |= SUPPORTED_1000baseT_Full;
phydev->supported |= SUPPORTED_10000baseT_Full;
phydev->speed = pdata->default_speed;
phydev->duplex = DUPLEX_FULL;
phydev->advertising &= ~ADVERTISED_Autoneg;
}
pdata->phydev = phydev;
of_node_put(phy_node);
DBGPHY_REGS(pdata);
DBGPR("<--xgbe_mdio_register\n");
return 0;
err_phy_connect:
phy_disconnect(phydev);
err_phy_device:
phy_device_free(phydev);
err_mdiobus_register:
mdiobus_unregister(mii);
err_mdiobus_alloc:
mdiobus_free(mii);
err_node_get:
of_node_put(phy_node);
return ret;
}
void xgbe_mdio_unregister(struct xgbe_prv_data *pdata)
{
DBGPR("-->xgbe_mdio_unregister\n");
phy_disconnect(pdata->phydev);
pdata->phydev = NULL;
module_put(pdata->phy_module);
pdata->phy_module = NULL;
mdiobus_unregister(pdata->mii);
pdata->mii->priv = NULL;
mdiobus_free(pdata->mii);
pdata->mii = NULL;
DBGPR("<--xgbe_mdio_unregister\n");
}
drivers/net/ethernet/amd/xgbe/xgbe.h 0 → 100644
浏览文件 @ c5aa9e3b
/*
* AMD 10Gb Ethernet driver
*
* This file is available to you under your choice of the following two
* licenses:
*
* License 1: GPLv2
*
* Copyright (c) 2014 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 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.
*/
#ifndef __XGBE_H__
#define __XGBE_H__
#include <linux/dma-mapping.h>
#include <linux/netdevice.h>
#include <linux/workqueue.h>
#include <linux/phy.h>
#define XGBE_DRV_NAME "amd-xgbe"
#define XGBE_DRV_VERSION "1.0.0-a"
#define XGBE_DRV_DESC "AMD 10 Gigabit Ethernet Driver"
/* Descriptor related defines */
#define TX_DESC_CNT 512
#define TX_DESC_MIN_FREE (TX_DESC_CNT >> 3)
#define TX_DESC_MAX_PROC (TX_DESC_CNT >> 1)
#define RX_DESC_CNT 512
#define TX_MAX_BUF_SIZE (0x3fff & ~(64 - 1))
#define RX_MIN_BUF_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN)
#define RX_BUF_ALIGN 64
#define MAX_DMA_CHANNELS 16
#define DMA_ARDOMAIN_SETTING 0x2
#define DMA_ARCACHE_SETTING 0xb
#define DMA_AWDOMAIN_SETTING 0x2
#define DMA_AWCACHE_SETTING 0x7
#define DMA_INTERRUPT_MASK 0x31c7
#define XGMAC_MIN_PACKET 60
#define XGMAC_STD_PACKET_MTU 1500
#define XGMAC_MAX_STD_PACKET 1518
#define XGMAC_JUMBO_PACKET_MTU 9000
#define XGMAC_MAX_JUMBO_PACKET 9018
#define MAX_MULTICAST_LIST 14
#define TX_FLAGS_IP_PKT 0x00000001
#define TX_FLAGS_TCP_PKT 0x00000002
/* MDIO bus phy name */
#define XGBE_PHY_NAME "amd_xgbe_phy"
#define XGBE_PRTAD 0
/* Driver PMT macros */
#define XGMAC_DRIVER_CONTEXT 1
#define XGMAC_IOCTL_CONTEXT 2
#define FIFO_SIZE_B(x) (x)
#define FIFO_SIZE_KB(x) (x * 1024)
#define XGBE_TC_CNT 2
/* Helper macro for descriptor handling
* Always use GET_DESC_DATA to access the descriptor data
* since the index is free-running and needs to be and-ed
* with the descriptor count value of the ring to index to
* the proper descriptor data.
*/
#define GET_DESC_DATA(_ring, _idx) \
((_ring)->rdata + \
((_idx) & ((_ring)->rdesc_count - 1)))
/* Default coalescing parameters */
#define XGMAC_INIT_DMA_TX_USECS 100
#define XGMAC_INIT_DMA_TX_FRAMES 16
#define XGMAC_MAX_DMA_RIWT 0xff
#define XGMAC_INIT_DMA_RX_USECS 100
#define XGMAC_INIT_DMA_RX_FRAMES 16
/* Flow control queue count */
#define XGMAC_MAX_FLOW_CONTROL_QUEUES 8
struct xgbe_prv_data;
struct xgbe_packet_data {
unsigned int attributes;
unsigned int errors;
unsigned int rdesc_count;
unsigned int length;
unsigned int header_len;
unsigned int tcp_header_len;
unsigned int tcp_payload_len;
unsigned short mss;
unsigned short vlan_ctag;
};
/* Common Rx and Tx descriptor mapping */
struct xgbe_ring_desc {
unsigned int desc0;
unsigned int desc1;
unsigned int desc2;
unsigned int desc3;
};
/* Structure used to hold information related to the descriptor
* and the packet associated with the descriptor (always use
* use the GET_DESC_DATA macro to access this data from the ring)
*/
struct xgbe_ring_data {
struct xgbe_ring_desc *rdesc; /* Virtual address of descriptor */
dma_addr_t rdesc_dma; /* DMA address of descriptor */
struct sk_buff *skb; /* Virtual address of SKB */
dma_addr_t skb_dma; /* DMA address of SKB data */
unsigned int skb_dma_len; /* Length of SKB DMA area */
unsigned int tso_header; /* TSO header indicator */
unsigned short len; /* Length of received Rx packet */
unsigned int interrupt; /* Interrupt indicator */
unsigned int mapped_as_page;
};
struct xgbe_ring {
/* Ring lock - used just for TX rings at the moment */
spinlock_t lock;
/* Per packet related information */
struct xgbe_packet_data packet_data;
/* Virtual/DMA addresses and count of allocated descriptor memory */
struct xgbe_ring_desc *rdesc;
dma_addr_t rdesc_dma;
unsigned int rdesc_count;
/* Array of descriptor data corresponding the descriptor memory
* (always use the GET_DESC_DATA macro to access this data)
*/
struct xgbe_ring_data *rdata;
/* Ring index values
* cur - Tx: index of descriptor to be used for current transfer
* Rx: index of descriptor to check for packet availability
* dirty - Tx: index of descriptor to check for transfer complete
* Rx: count of descriptors in which a packet has been received
* (used with skb_realloc_index to refresh the ring)
*/
unsigned int cur;
unsigned int dirty;
/* Coalesce frame count used for interrupt bit setting */
unsigned int coalesce_count;
union {
struct {
unsigned int queue_stopped;
unsigned short cur_mss;
unsigned short cur_vlan_ctag;
} tx;
struct {
unsigned int realloc_index;
unsigned int realloc_threshold;
} rx;
};
} ____cacheline_aligned;
/* Structure used to describe the descriptor rings associated with
* a DMA channel.
*/
struct xgbe_channel {
char name[16];
/* Address of private data area for device */
struct xgbe_prv_data *pdata;
/* Queue index and base address of queue's DMA registers */
unsigned int queue_index;
void __iomem *dma_regs;
unsigned int saved_ier;
unsigned int tx_timer_active;
struct hrtimer tx_timer;
struct xgbe_ring *tx_ring;
struct xgbe_ring *rx_ring;
} ____cacheline_aligned;
enum xgbe_int {
XGMAC_INT_DMA_ISR_DC0IS,
XGMAC_INT_DMA_CH_SR_TI,
XGMAC_INT_DMA_CH_SR_TPS,
XGMAC_INT_DMA_CH_SR_TBU,
XGMAC_INT_DMA_CH_SR_RI,
XGMAC_INT_DMA_CH_SR_RBU,
XGMAC_INT_DMA_CH_SR_RPS,
XGMAC_INT_DMA_CH_SR_FBE,
XGMAC_INT_DMA_ALL,
};
enum xgbe_int_state {
XGMAC_INT_STATE_SAVE,
XGMAC_INT_STATE_RESTORE,
};
enum xgbe_mtl_fifo_size {
XGMAC_MTL_FIFO_SIZE_256 = 0x00,
XGMAC_MTL_FIFO_SIZE_512 = 0x01,
XGMAC_MTL_FIFO_SIZE_1K = 0x03,
XGMAC_MTL_FIFO_SIZE_2K = 0x07,
XGMAC_MTL_FIFO_SIZE_4K = 0x0f,
XGMAC_MTL_FIFO_SIZE_8K = 0x1f,
XGMAC_MTL_FIFO_SIZE_16K = 0x3f,
XGMAC_MTL_FIFO_SIZE_32K = 0x7f,
XGMAC_MTL_FIFO_SIZE_64K = 0xff,
XGMAC_MTL_FIFO_SIZE_128K = 0x1ff,
XGMAC_MTL_FIFO_SIZE_256K = 0x3ff,
};
struct xgbe_mmc_stats {
/* Tx Stats */
u64 txoctetcount_gb;
u64 txframecount_gb;
u64 txbroadcastframes_g;
u64 txmulticastframes_g;
u64 tx64octets_gb;
u64 tx65to127octets_gb;
u64 tx128to255octets_gb;
u64 tx256to511octets_gb;
u64 tx512to1023octets_gb;
u64 tx1024tomaxoctets_gb;
u64 txunicastframes_gb;
u64 txmulticastframes_gb;
u64 txbroadcastframes_gb;
u64 txunderflowerror;
u64 txoctetcount_g;
u64 txframecount_g;
u64 txpauseframes;
u64 txvlanframes_g;
/* Rx Stats */
u64 rxframecount_gb;
u64 rxoctetcount_gb;
u64 rxoctetcount_g;
u64 rxbroadcastframes_g;
u64 rxmulticastframes_g;
u64 rxcrcerror;
u64 rxrunterror;
u64 rxjabbererror;
u64 rxundersize_g;
u64 rxoversize_g;
u64 rx64octets_gb;
u64 rx65to127octets_gb;
u64 rx128to255octets_gb;
u64 rx256to511octets_gb;
u64 rx512to1023octets_gb;
u64 rx1024tomaxoctets_gb;
u64 rxunicastframes_g;
u64 rxlengtherror;
u64 rxoutofrangetype;
u64 rxpauseframes;
u64 rxfifooverflow;
u64 rxvlanframes_gb;
u64 rxwatchdogerror;
};
struct xgbe_hw_if {
int (*tx_complete)(struct xgbe_ring_desc *);
int (*set_promiscuous_mode)(struct xgbe_prv_data *, unsigned int);
int (*set_all_multicast_mode)(struct xgbe_prv_data *, unsigned int);
int (*set_addn_mac_addrs)(struct xgbe_prv_data *, unsigned int);
int (*set_mac_address)(struct xgbe_prv_data *, u8 *addr);
int (*enable_rx_csum)(struct xgbe_prv_data *);
int (*disable_rx_csum)(struct xgbe_prv_data *);
int (*enable_rx_vlan_stripping)(struct xgbe_prv_data *);
int (*disable_rx_vlan_stripping)(struct xgbe_prv_data *);
int (*read_mmd_regs)(struct xgbe_prv_data *, int, int);
void (*write_mmd_regs)(struct xgbe_prv_data *, int, int, int);
int (*set_gmii_speed)(struct xgbe_prv_data *);
int (*set_gmii_2500_speed)(struct xgbe_prv_data *);
int (*set_xgmii_speed)(struct xgbe_prv_data *);
void (*enable_tx)(struct xgbe_prv_data *);
void (*disable_tx)(struct xgbe_prv_data *);
void (*enable_rx)(struct xgbe_prv_data *);
void (*disable_rx)(struct xgbe_prv_data *);
void (*powerup_tx)(struct xgbe_prv_data *);
void (*powerdown_tx)(struct xgbe_prv_data *);
void (*powerup_rx)(struct xgbe_prv_data *);
void (*powerdown_rx)(struct xgbe_prv_data *);
int (*init)(struct xgbe_prv_data *);
int (*exit)(struct xgbe_prv_data *);
int (*enable_int)(struct xgbe_channel *, enum xgbe_int);
int (*disable_int)(struct xgbe_channel *, enum xgbe_int);
void (*pre_xmit)(struct xgbe_channel *);
int (*dev_read)(struct xgbe_channel *);
void (*tx_desc_init)(struct xgbe_channel *);
void (*rx_desc_init)(struct xgbe_channel *);
void (*rx_desc_reset)(struct xgbe_ring_data *);
void (*tx_desc_reset)(struct xgbe_ring_data *);
int (*is_last_desc)(struct xgbe_ring_desc *);
int (*is_context_desc)(struct xgbe_ring_desc *);
/* For FLOW ctrl */
int (*config_tx_flow_control)(struct xgbe_prv_data *);
int (*config_rx_flow_control)(struct xgbe_prv_data *);
/* For RX coalescing */
int (*config_rx_coalesce)(struct xgbe_prv_data *);
int (*config_tx_coalesce)(struct xgbe_prv_data *);
unsigned int (*usec_to_riwt)(struct xgbe_prv_data *, unsigned int);
unsigned int (*riwt_to_usec)(struct xgbe_prv_data *, unsigned int);
/* For RX and TX threshold config */
int (*config_rx_threshold)(struct xgbe_prv_data *, unsigned int);
int (*config_tx_threshold)(struct xgbe_prv_data *, unsigned int);
/* For RX and TX Store and Forward Mode config */
int (*config_rsf_mode)(struct xgbe_prv_data *, unsigned int);
int (*config_tsf_mode)(struct xgbe_prv_data *, unsigned int);
/* For TX DMA Operate on Second Frame config */
int (*config_osp_mode)(struct xgbe_prv_data *);
/* For RX and TX PBL config */
int (*config_rx_pbl_val)(struct xgbe_prv_data *);
int (*get_rx_pbl_val)(struct xgbe_prv_data *);
int (*config_tx_pbl_val)(struct xgbe_prv_data *);
int (*get_tx_pbl_val)(struct xgbe_prv_data *);
int (*config_pblx8)(struct xgbe_prv_data *);
/* For MMC statistics */
void (*rx_mmc_int)(struct xgbe_prv_data *);
void (*tx_mmc_int)(struct xgbe_prv_data *);
void (*read_mmc_stats)(struct xgbe_prv_data *);
};
struct xgbe_desc_if {
int (*alloc_ring_resources)(struct xgbe_prv_data *);
void (*free_ring_resources)(struct xgbe_prv_data *);
int (*map_tx_skb)(struct xgbe_channel *, struct sk_buff *);
void (*realloc_skb)(struct xgbe_channel *);
void (*unmap_skb)(struct xgbe_prv_data *, struct xgbe_ring_data *);
void (*wrapper_tx_desc_init)(struct xgbe_prv_data *);
void (*wrapper_rx_desc_init)(struct xgbe_prv_data *);
};
/* This structure contains flags that indicate what hardware features
* or configurations are present in the device.
*/
struct xgbe_hw_features {
/* HW Feature Register0 */
unsigned int gmii; /* 1000 Mbps support */
unsigned int vlhash; /* VLAN Hash Filter */
unsigned int sma; /* SMA(MDIO) Interface */
unsigned int rwk; /* PMT remote wake-up packet */
unsigned int mgk; /* PMT magic packet */
unsigned int mmc; /* RMON module */
unsigned int aoe; /* ARP Offload */
unsigned int ts; /* IEEE 1588-2008 Adavanced Timestamp */
unsigned int eee; /* Energy Efficient Ethernet */
unsigned int tx_coe; /* Tx Checksum Offload */
unsigned int rx_coe; /* Rx Checksum Offload */
unsigned int addn_mac; /* Additional MAC Addresses */
unsigned int ts_src; /* Timestamp Source */
unsigned int sa_vlan_ins; /* Source Address or VLAN Insertion */
/* HW Feature Register1 */
unsigned int rx_fifo_size; /* MTL Receive FIFO Size */
unsigned int tx_fifo_size; /* MTL Transmit FIFO Size */
unsigned int adv_ts_hi; /* Advance Timestamping High Word */
unsigned int dcb; /* DCB Feature */
unsigned int sph; /* Split Header Feature */
unsigned int tso; /* TCP Segmentation Offload */
unsigned int dma_debug; /* DMA Debug Registers */
unsigned int rss; /* Receive Side Scaling */
unsigned int hash_table_size; /* Hash Table Size */
unsigned int l3l4_filter_num; /* Number of L3-L4 Filters */
/* HW Feature Register2 */
unsigned int rx_q_cnt; /* Number of MTL Receive Queues */
unsigned int tx_q_cnt; /* Number of MTL Transmit Queues */
unsigned int rx_ch_cnt; /* Number of DMA Receive Channels */
unsigned int tx_ch_cnt; /* Number of DMA Transmit Channels */
unsigned int pps_out_num; /* Number of PPS outputs */
unsigned int aux_snap_num; /* Number of Aux snapshot inputs */
};
struct xgbe_prv_data {
struct net_device *netdev;
struct platform_device *pdev;
struct device *dev;
/* XGMAC/XPCS related mmio registers */
void __iomem *xgmac_regs; /* XGMAC CSRs */
void __iomem *xpcs_regs; /* XPCS MMD registers */
/* Overall device lock */
spinlock_t lock;
/* XPCS indirect addressing mutex */
struct mutex xpcs_mutex;
int irq_number;
struct xgbe_hw_if hw_if;
struct xgbe_desc_if desc_if;
/* Rings for Tx/Rx on a DMA channel */
struct xgbe_channel *channel;
unsigned int channel_count;
unsigned int tx_ring_count;
unsigned int tx_desc_count;
unsigned int rx_ring_count;
unsigned int rx_desc_count;
/* Tx/Rx common settings */
unsigned int pblx8;
/* Tx settings */
unsigned int tx_sf_mode;
unsigned int tx_threshold;
unsigned int tx_pbl;
unsigned int tx_osp_mode;
/* Rx settings */
unsigned int rx_sf_mode;
unsigned int rx_threshold;
unsigned int rx_pbl;
/* Tx coalescing settings */
unsigned int tx_usecs;
unsigned int tx_frames;
/* Rx coalescing settings */
unsigned int rx_riwt;
unsigned int rx_frames;
/* Current MTU */
unsigned int rx_buf_size;
/* Flow control settings */
unsigned int pause_autoneg;
unsigned int tx_pause;
unsigned int rx_pause;
/* MDIO settings */
struct module *phy_module;
char *mii_bus_id;
struct mii_bus *mii;
int mdio_mmd;
struct phy_device *phydev;
int default_autoneg;
int default_speed;
/* Current PHY settings */
phy_interface_t phy_mode;
int phy_link;
int phy_speed;
unsigned int phy_tx_pause;
unsigned int phy_rx_pause;
/* Netdev related settings */
netdev_features_t netdev_features;
struct napi_struct napi;
struct xgbe_mmc_stats mmc_stats;
/* System clock value used for Rx watchdog */
struct clk *sysclock;
/* Hardware features of the device */
struct xgbe_hw_features hw_feat;
/* Device restart work structure */
struct work_struct restart_work;
/* Keeps track of power mode */
unsigned int power_down;
#ifdef CONFIG_DEBUG_FS
struct dentry *xgbe_debugfs;
unsigned int debugfs_xgmac_reg;
unsigned int debugfs_xpcs_mmd;
unsigned int debugfs_xpcs_reg;
#endif
};
/* Function prototypes*/
void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *);
void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *);
struct net_device_ops *xgbe_get_netdev_ops(void);
struct ethtool_ops *xgbe_get_ethtool_ops(void);
int xgbe_mdio_register(struct xgbe_prv_data *);
void xgbe_mdio_unregister(struct xgbe_prv_data *);
void xgbe_dump_phy_registers(struct xgbe_prv_data *);
void xgbe_dump_tx_desc(struct xgbe_ring *, unsigned int, unsigned int,
unsigned int);
void xgbe_dump_rx_desc(struct xgbe_ring *, struct xgbe_ring_desc *,
unsigned int);
void xgbe_print_pkt(struct net_device *, struct sk_buff *, bool);
void xgbe_get_all_hw_features(struct xgbe_prv_data *);
int xgbe_powerup(struct net_device *, unsigned int);
int xgbe_powerdown(struct net_device *, unsigned int);
void xgbe_init_rx_coalesce(struct xgbe_prv_data *);
void xgbe_init_tx_coalesce(struct xgbe_prv_data *);
#ifdef CONFIG_DEBUG_FS
void xgbe_debugfs_init(struct xgbe_prv_data *);
void xgbe_debugfs_exit(struct xgbe_prv_data *);
#else
static inline void xgbe_debugfs_init(struct xgbe_prv_data *pdata) {}
static inline void xgbe_debugfs_exit(struct xgbe_prv_data *pdata) {}
#endif /* CONFIG_DEBUG_FS */
/* NOTE: Uncomment for TX and RX DESCRIPTOR DUMP in KERNEL LOG */
#if 0
#define XGMAC_ENABLE_TX_DESC_DUMP
#define XGMAC_ENABLE_RX_DESC_DUMP
#endif
/* NOTE: Uncomment for TX and RX PACKET DUMP in KERNEL LOG */
#if 0
#define XGMAC_ENABLE_TX_PKT_DUMP
#define XGMAC_ENABLE_RX_PKT_DUMP
#endif
/* NOTE: Uncomment for function trace log messages in KERNEL LOG */
#if 0
#define YDEBUG
#define YDEBUG_MDIO
#endif
/* For debug prints */
#ifdef YDEBUG
#define DBGPR(x...) pr_alert(x)
#define DBGPHY_REGS(x...) xgbe_dump_phy_registers(x)
#else
#define DBGPR(x...) do { } while (0)
#define DBGPHY_REGS(x...) do { } while (0)
#endif
#ifdef YDEBUG_MDIO
#define DBGPR_MDIO(x...) pr_alert(x)
#else
#define DBGPR_MDIO(x...) do { } while (0)
#endif
#endif
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