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| author | Josh Boyer <jwboyer@fedoraproject.org> | 2015-04-22 19:36:28 -0400 |
|---|---|---|
| committer | Josh Boyer <jwboyer@fedoraproject.org> | 2015-04-22 19:36:28 -0400 |
| commit | 0d59e0e8af8a60327898c9719e9e7b6970cfdcb2 (patch) | |
| tree | 61a44bc95187d0961f1f260837ca8121a54ef050 /amd-xgbe-a0-Add-support-for-XGBE-on-A0.patch | |
| parent | 0c5496756dfe2880ec1f3bb7e1531a46e9529542 (diff) | |
| download | kernel-0d59e0e8af8a60327898c9719e9e7b6970cfdcb2.tar.gz kernel-0d59e0e8af8a60327898c9719e9e7b6970cfdcb2.tar.xz kernel-0d59e0e8af8a60327898c9719e9e7b6970cfdcb2.zip | |
Update from exploded git tree
Change patch name to reflect new Subject:
Diffstat (limited to 'amd-xgbe-a0-Add-support-for-XGBE-on-A0.patch')
| -rw-r--r-- | amd-xgbe-a0-Add-support-for-XGBE-on-A0.patch | 10414 |
1 files changed, 10414 insertions, 0 deletions
diff --git a/amd-xgbe-a0-Add-support-for-XGBE-on-A0.patch b/amd-xgbe-a0-Add-support-for-XGBE-on-A0.patch new file mode 100644 index 000000000..31fe32a74 --- /dev/null +++ b/amd-xgbe-a0-Add-support-for-XGBE-on-A0.patch @@ -0,0 +1,10414 @@ +From: Tom Lendacky <thomas.lendacky@amd.com> +Date: Sat, 21 Feb 2015 12:25:12 -0500 +Subject: [PATCH] amd-xgbe-a0: Add support for XGBE on A0 + +Add XGBE driver support for A0 hardware. + +Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> +[fixup timespec -> timespec64] +Signed-off-by: Mark Salter <msalter@redhat.com> +--- + drivers/net/ethernet/amd/Makefile | 1 + + drivers/net/ethernet/amd/xgbe-a0/Makefile | 8 + + drivers/net/ethernet/amd/xgbe-a0/xgbe-common.h | 1142 +++++++++ + drivers/net/ethernet/amd/xgbe-a0/xgbe-dcb.c | 269 +++ + drivers/net/ethernet/amd/xgbe-a0/xgbe-debugfs.c | 373 +++ + drivers/net/ethernet/amd/xgbe-a0/xgbe-desc.c | 636 +++++ + drivers/net/ethernet/amd/xgbe-a0/xgbe-dev.c | 2930 +++++++++++++++++++++++ + drivers/net/ethernet/amd/xgbe-a0/xgbe-drv.c | 2218 +++++++++++++++++ + drivers/net/ethernet/amd/xgbe-a0/xgbe-ethtool.c | 616 +++++ + drivers/net/ethernet/amd/xgbe-a0/xgbe-main.c | 643 +++++ + drivers/net/ethernet/amd/xgbe-a0/xgbe-mdio.c | 312 +++ + drivers/net/ethernet/amd/xgbe-a0/xgbe-ptp.c | 278 +++ + drivers/net/ethernet/amd/xgbe-a0/xgbe.h | 868 +++++++ + 13 files changed, 10294 insertions(+) + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/Makefile + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe-common.h + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe-dcb.c + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe-debugfs.c + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe-desc.c + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe-dev.c + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe-drv.c + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe-ethtool.c + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe-main.c + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe-mdio.c + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe-ptp.c + create mode 100644 drivers/net/ethernet/amd/xgbe-a0/xgbe.h + +diff --git a/drivers/net/ethernet/amd/Makefile b/drivers/net/ethernet/amd/Makefile +index a38a2dce3eb3..bf0cf2f8d2db 100644 +--- a/drivers/net/ethernet/amd/Makefile ++++ b/drivers/net/ethernet/amd/Makefile +@@ -18,3 +18,4 @@ obj-$(CONFIG_PCNET32) += pcnet32.o + obj-$(CONFIG_SUN3LANCE) += sun3lance.o + obj-$(CONFIG_SUNLANCE) += sunlance.o + obj-$(CONFIG_AMD_XGBE) += xgbe/ ++obj-$(CONFIG_AMD_XGBE) += xgbe-a0/ +diff --git a/drivers/net/ethernet/amd/xgbe-a0/Makefile b/drivers/net/ethernet/amd/xgbe-a0/Makefile +new file mode 100644 +index 000000000000..561116faadae +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/Makefile +@@ -0,0 +1,8 @@ ++obj-$(CONFIG_AMD_XGBE) += amd-xgbe-a0.o ++ ++amd-xgbe-a0-objs := xgbe-main.o xgbe-drv.o xgbe-dev.o \ ++ xgbe-desc.o xgbe-ethtool.o xgbe-mdio.o \ ++ xgbe-ptp.o ++ ++amd-xgbe-a0-$(CONFIG_AMD_XGBE_DCB) += xgbe-dcb.o ++amd-xgbe-a0-$(CONFIG_DEBUG_FS) += xgbe-debugfs.o +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe-common.h b/drivers/net/ethernet/amd/xgbe-a0/xgbe-common.h +new file mode 100644 +index 000000000000..75b08c63d39f +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe-common.h +@@ -0,0 +1,1142 @@ ++/* ++ * 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 ++ ++/* 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_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_BLEN_256_INDEX 7 ++#define DMA_SBMR_BLEN_256_WIDTH 1 ++#define DMA_SBMR_UNDEF_INDEX 0 ++#define DMA_SBMR_UNDEF_WIDTH 1 ++ ++/* DMA register values */ ++#define DMA_DSR_RPS_WIDTH 4 ++#define DMA_DSR_TPS_WIDTH 4 ++#define DMA_DSR_Q_WIDTH (DMA_DSR_RPS_WIDTH + DMA_DSR_TPS_WIDTH) ++#define DMA_DSR0_RPS_START 8 ++#define DMA_DSR0_TPS_START 12 ++#define DMA_DSRX_FIRST_QUEUE 3 ++#define DMA_DSRX_INC 4 ++#define DMA_DSRX_QPR 4 ++#define DMA_DSRX_RPS_START 0 ++#define DMA_DSRX_TPS_START 4 ++#define DMA_TPS_STOPPED 0x00 ++#define DMA_TPS_SUSPENDED 0x06 ++ ++/* 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_CR_SPH_INDEX 24 ++#define DMA_CH_CR_SPH_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_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_RSSCR 0x0c80 ++#define MAC_RSSAR 0x0c88 ++#define MAC_RSSDR 0x0c8c ++#define MAC_TSCR 0x0d00 ++#define MAC_SSIR 0x0d04 ++#define MAC_STSR 0x0d08 ++#define MAC_STNR 0x0d0c ++#define MAC_STSUR 0x0d10 ++#define MAC_STNUR 0x0d14 ++#define MAC_TSAR 0x0d18 ++#define MAC_TSSR 0x0d20 ++#define MAC_TXSNR 0x0d30 ++#define MAC_TXSSR 0x0d34 ++ ++#define MAC_QTFCR_INC 4 ++#define MAC_MACA_INC 4 ++#define MAC_HTR_INC 4 ++ ++#define MAC_RQC2_INC 4 ++#define MAC_RQC2_Q_PER_REG 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_NUMTC_INDEX 21 ++#define MAC_HWF1R_NUMTC_WIDTH 3 ++#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_IER_TSIE_INDEX 12 ++#define MAC_IER_TSIE_WIDTH 1 ++#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_ISR_TSIS_INDEX 12 ++#define MAC_ISR_TSIS_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_HPF_INDEX 10 ++#define MAC_PFR_HPF_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_PFR_VTFE_INDEX 16 ++#define MAC_PFR_VTFE_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_HDSMS_INDEX 12 ++#define MAC_RCR_HDSMS_WIDTH 3 ++#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_PFCE_INDEX 8 ++#define MAC_RFCR_PFCE_WIDTH 1 ++#define MAC_RFCR_RFE_INDEX 0 ++#define MAC_RFCR_RFE_WIDTH 1 ++#define MAC_RFCR_UP_INDEX 1 ++#define MAC_RFCR_UP_WIDTH 1 ++#define MAC_RQC0R_RXQ0EN_INDEX 0 ++#define MAC_RQC0R_RXQ0EN_WIDTH 2 ++#define MAC_RSSAR_ADDRT_INDEX 2 ++#define MAC_RSSAR_ADDRT_WIDTH 1 ++#define MAC_RSSAR_CT_INDEX 1 ++#define MAC_RSSAR_CT_WIDTH 1 ++#define MAC_RSSAR_OB_INDEX 0 ++#define MAC_RSSAR_OB_WIDTH 1 ++#define MAC_RSSAR_RSSIA_INDEX 8 ++#define MAC_RSSAR_RSSIA_WIDTH 8 ++#define MAC_RSSCR_IP2TE_INDEX 1 ++#define MAC_RSSCR_IP2TE_WIDTH 1 ++#define MAC_RSSCR_RSSE_INDEX 0 ++#define MAC_RSSCR_RSSE_WIDTH 1 ++#define MAC_RSSCR_TCP4TE_INDEX 2 ++#define MAC_RSSCR_TCP4TE_WIDTH 1 ++#define MAC_RSSCR_UDP4TE_INDEX 3 ++#define MAC_RSSCR_UDP4TE_WIDTH 1 ++#define MAC_RSSDR_DMCH_INDEX 0 ++#define MAC_RSSDR_DMCH_WIDTH 4 ++#define MAC_SSIR_SNSINC_INDEX 8 ++#define MAC_SSIR_SNSINC_WIDTH 8 ++#define MAC_SSIR_SSINC_INDEX 16 ++#define MAC_SSIR_SSINC_WIDTH 8 ++#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_TSCR_AV8021ASMEN_INDEX 28 ++#define MAC_TSCR_AV8021ASMEN_WIDTH 1 ++#define MAC_TSCR_SNAPTYPSEL_INDEX 16 ++#define MAC_TSCR_SNAPTYPSEL_WIDTH 2 ++#define MAC_TSCR_TSADDREG_INDEX 5 ++#define MAC_TSCR_TSADDREG_WIDTH 1 ++#define MAC_TSCR_TSCFUPDT_INDEX 1 ++#define MAC_TSCR_TSCFUPDT_WIDTH 1 ++#define MAC_TSCR_TSCTRLSSR_INDEX 9 ++#define MAC_TSCR_TSCTRLSSR_WIDTH 1 ++#define MAC_TSCR_TSENA_INDEX 0 ++#define MAC_TSCR_TSENA_WIDTH 1 ++#define MAC_TSCR_TSENALL_INDEX 8 ++#define MAC_TSCR_TSENALL_WIDTH 1 ++#define MAC_TSCR_TSEVNTENA_INDEX 14 ++#define MAC_TSCR_TSEVNTENA_WIDTH 1 ++#define MAC_TSCR_TSINIT_INDEX 2 ++#define MAC_TSCR_TSINIT_WIDTH 1 ++#define MAC_TSCR_TSIPENA_INDEX 11 ++#define MAC_TSCR_TSIPENA_WIDTH 1 ++#define MAC_TSCR_TSIPV4ENA_INDEX 13 ++#define MAC_TSCR_TSIPV4ENA_WIDTH 1 ++#define MAC_TSCR_TSIPV6ENA_INDEX 12 ++#define MAC_TSCR_TSIPV6ENA_WIDTH 1 ++#define MAC_TSCR_TSMSTRENA_INDEX 15 ++#define MAC_TSCR_TSMSTRENA_WIDTH 1 ++#define MAC_TSCR_TSVER2ENA_INDEX 10 ++#define MAC_TSCR_TSVER2ENA_WIDTH 1 ++#define MAC_TSCR_TXTSSTSM_INDEX 24 ++#define MAC_TSCR_TXTSSTSM_WIDTH 1 ++#define MAC_TSSR_TXTSC_INDEX 15 ++#define MAC_TSSR_TXTSC_WIDTH 1 ++#define MAC_TXSNR_TXTSSTSMIS_INDEX 31 ++#define MAC_TXSNR_TXTSSTSMIS_WIDTH 1 ++#define MAC_VLANHTR_VLHT_INDEX 0 ++#define MAC_VLANHTR_VLHT_WIDTH 16 ++#define MAC_VLANIR_VLTI_INDEX 20 ++#define MAC_VLANIR_VLTI_WIDTH 1 ++#define MAC_VLANIR_CSVL_INDEX 19 ++#define MAC_VLANIR_CSVL_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_ETV_INDEX 16 ++#define MAC_VLANTR_ETV_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_VLANTR_VL_INDEX 0 ++#define MAC_VLANTR_VL_WIDTH 16 ++#define MAC_VLANTR_VTHM_INDEX 25 ++#define MAC_VLANTR_VTHM_WIDTH 1 ++#define MAC_VLANTR_VTIM_INDEX 17 ++#define MAC_VLANTR_VTIM_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 ++#define MTL_TCPM_INC 4 ++#define MTL_TCPM_TC_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_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_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_Q2TCMAP_INDEX 8 ++#define MTL_Q_TQOMR_Q2TCMAP_WIDTH 3 ++#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 ++#define MTL_TC_ETSSR 0x14 ++#define MTL_TC_QWR 0x18 ++ ++/* MTL traffic class register entry bit positions and sizes */ ++#define MTL_TC_ETSCR_TSA_INDEX 0 ++#define MTL_TC_ETSCR_TSA_WIDTH 2 ++#define MTL_TC_QWR_QW_INDEX 0 ++#define MTL_TC_QWR_QW_WIDTH 21 ++ ++/* 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_PACKET_ATTRIBUTES_CONTEXT_NEXT_INDEX 3 ++#define RX_PACKET_ATTRIBUTES_CONTEXT_NEXT_WIDTH 1 ++#define RX_PACKET_ATTRIBUTES_CONTEXT_INDEX 4 ++#define RX_PACKET_ATTRIBUTES_CONTEXT_WIDTH 1 ++#define RX_PACKET_ATTRIBUTES_RX_TSTAMP_INDEX 5 ++#define RX_PACKET_ATTRIBUTES_RX_TSTAMP_WIDTH 1 ++#define RX_PACKET_ATTRIBUTES_RSS_HASH_INDEX 6 ++#define RX_PACKET_ATTRIBUTES_RSS_HASH_WIDTH 1 ++ ++#define RX_NORMAL_DESC0_OVT_INDEX 0 ++#define RX_NORMAL_DESC0_OVT_WIDTH 16 ++#define RX_NORMAL_DESC2_HL_INDEX 0 ++#define RX_NORMAL_DESC2_HL_WIDTH 10 ++#define RX_NORMAL_DESC3_CDA_INDEX 27 ++#define RX_NORMAL_DESC3_CDA_WIDTH 1 ++#define RX_NORMAL_DESC3_CTXT_INDEX 30 ++#define RX_NORMAL_DESC3_CTXT_WIDTH 1 ++#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_FD_INDEX 29 ++#define RX_NORMAL_DESC3_FD_WIDTH 1 ++#define RX_NORMAL_DESC3_INTE_INDEX 30 ++#define RX_NORMAL_DESC3_INTE_WIDTH 1 ++#define RX_NORMAL_DESC3_L34T_INDEX 20 ++#define RX_NORMAL_DESC3_L34T_WIDTH 4 ++#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 RX_NORMAL_DESC3_RSV_INDEX 26 ++#define RX_NORMAL_DESC3_RSV_WIDTH 1 ++ ++#define RX_DESC3_L34T_IPV4_TCP 1 ++#define RX_DESC3_L34T_IPV4_UDP 2 ++#define RX_DESC3_L34T_IPV4_ICMP 3 ++#define RX_DESC3_L34T_IPV6_TCP 9 ++#define RX_DESC3_L34T_IPV6_UDP 10 ++#define RX_DESC3_L34T_IPV6_ICMP 11 ++ ++#define RX_CONTEXT_DESC3_TSA_INDEX 4 ++#define RX_CONTEXT_DESC3_TSA_WIDTH 1 ++#define RX_CONTEXT_DESC3_TSD_INDEX 6 ++#define RX_CONTEXT_DESC3_TSD_WIDTH 1 ++ ++#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_PACKET_ATTRIBUTES_PTP_INDEX 3 ++#define TX_PACKET_ATTRIBUTES_PTP_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_TTSE_INDEX 30 ++#define TX_NORMAL_DESC2_TTSE_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 +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe-dcb.c b/drivers/net/ethernet/amd/xgbe-a0/xgbe-dcb.c +new file mode 100644 +index 000000000000..343301cbf7b4 +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe-dcb.c +@@ -0,0 +1,269 @@ ++/* ++ * 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/netdevice.h> ++#include <net/dcbnl.h> ++ ++#include "xgbe.h" ++#include "xgbe-common.h" ++ ++static int xgbe_dcb_ieee_getets(struct net_device *netdev, ++ struct ieee_ets *ets) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ ++ /* Set number of supported traffic classes */ ++ ets->ets_cap = pdata->hw_feat.tc_cnt; ++ ++ if (pdata->ets) { ++ ets->cbs = pdata->ets->cbs; ++ memcpy(ets->tc_tx_bw, pdata->ets->tc_tx_bw, ++ sizeof(ets->tc_tx_bw)); ++ memcpy(ets->tc_tsa, pdata->ets->tc_tsa, ++ sizeof(ets->tc_tsa)); ++ memcpy(ets->prio_tc, pdata->ets->prio_tc, ++ sizeof(ets->prio_tc)); ++ } ++ ++ return 0; ++} ++ ++static int xgbe_dcb_ieee_setets(struct net_device *netdev, ++ struct ieee_ets *ets) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ unsigned int i, tc_ets, tc_ets_weight; ++ ++ tc_ets = 0; ++ tc_ets_weight = 0; ++ for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { ++ DBGPR(" TC%u: tx_bw=%hhu, rx_bw=%hhu, tsa=%hhu\n", i, ++ ets->tc_tx_bw[i], ets->tc_rx_bw[i], ets->tc_tsa[i]); ++ DBGPR(" PRIO%u: TC=%hhu\n", i, ets->prio_tc[i]); ++ ++ if ((ets->tc_tx_bw[i] || ets->tc_tsa[i]) && ++ (i >= pdata->hw_feat.tc_cnt)) ++ return -EINVAL; ++ ++ if (ets->prio_tc[i] >= pdata->hw_feat.tc_cnt) ++ return -EINVAL; ++ ++ switch (ets->tc_tsa[i]) { ++ case IEEE_8021QAZ_TSA_STRICT: ++ break; ++ case IEEE_8021QAZ_TSA_ETS: ++ tc_ets = 1; ++ tc_ets_weight += ets->tc_tx_bw[i]; ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ } ++ ++ /* Weights must add up to 100% */ ++ if (tc_ets && (tc_ets_weight != 100)) ++ return -EINVAL; ++ ++ if (!pdata->ets) { ++ pdata->ets = devm_kzalloc(pdata->dev, sizeof(*pdata->ets), ++ GFP_KERNEL); ++ if (!pdata->ets) ++ return -ENOMEM; ++ } ++ ++ memcpy(pdata->ets, ets, sizeof(*pdata->ets)); ++ ++ pdata->hw_if.config_dcb_tc(pdata); ++ ++ return 0; ++} ++ ++static int xgbe_dcb_ieee_getpfc(struct net_device *netdev, ++ struct ieee_pfc *pfc) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ ++ /* Set number of supported PFC traffic classes */ ++ pfc->pfc_cap = pdata->hw_feat.tc_cnt; ++ ++ if (pdata->pfc) { ++ pfc->pfc_en = pdata->pfc->pfc_en; ++ pfc->mbc = pdata->pfc->mbc; ++ pfc->delay = pdata->pfc->delay; ++ } ++ ++ return 0; ++} ++ ++static int xgbe_dcb_ieee_setpfc(struct net_device *netdev, ++ struct ieee_pfc *pfc) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ ++ DBGPR(" cap=%hhu, en=%hhx, mbc=%hhu, delay=%hhu\n", ++ pfc->pfc_cap, pfc->pfc_en, pfc->mbc, pfc->delay); ++ ++ if (!pdata->pfc) { ++ pdata->pfc = devm_kzalloc(pdata->dev, sizeof(*pdata->pfc), ++ GFP_KERNEL); ++ if (!pdata->pfc) ++ return -ENOMEM; ++ } ++ ++ memcpy(pdata->pfc, pfc, sizeof(*pdata->pfc)); ++ ++ pdata->hw_if.config_dcb_pfc(pdata); ++ ++ return 0; ++} ++ ++static u8 xgbe_dcb_getdcbx(struct net_device *netdev) ++{ ++ return DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE; ++} ++ ++static u8 xgbe_dcb_setdcbx(struct net_device *netdev, u8 dcbx) ++{ ++ u8 support = xgbe_dcb_getdcbx(netdev); ++ ++ DBGPR(" DCBX=%#hhx\n", dcbx); ++ ++ if (dcbx & ~support) ++ return 1; ++ ++ if ((dcbx & support) != support) ++ return 1; ++ ++ return 0; ++} ++ ++static const struct dcbnl_rtnl_ops xgbe_dcbnl_ops = { ++ /* IEEE 802.1Qaz std */ ++ .ieee_getets = xgbe_dcb_ieee_getets, ++ .ieee_setets = xgbe_dcb_ieee_setets, ++ .ieee_getpfc = xgbe_dcb_ieee_getpfc, ++ .ieee_setpfc = xgbe_dcb_ieee_setpfc, ++ ++ /* DCBX configuration */ ++ .getdcbx = xgbe_dcb_getdcbx, ++ .setdcbx = xgbe_dcb_setdcbx, ++}; ++ ++const struct dcbnl_rtnl_ops *xgbe_a0_get_dcbnl_ops(void) ++{ ++ return &xgbe_dcbnl_ops; ++} +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe-debugfs.c b/drivers/net/ethernet/amd/xgbe-a0/xgbe-debugfs.c +new file mode 100644 +index 000000000000..ecfa6f91da22 +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe-debugfs.c +@@ -0,0 +1,373 @@ ++/* ++ * 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; ++ int ret; ++ ++ 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'; ++ ret = kstrtouint(workarea, 16, value); ++ if (ret) ++ 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 = XMDIO_READ(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; ++ ++ XMDIO_WRITE(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_a0_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-a0-%s", pdata->netdev->name); ++ pdata->xgbe_debugfs = debugfs_create_dir(buf, NULL); ++ if (!pdata->xgbe_debugfs) { ++ 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_a0_debugfs_exit(struct xgbe_prv_data *pdata) ++{ ++ debugfs_remove_recursive(pdata->xgbe_debugfs); ++ pdata->xgbe_debugfs = NULL; ++} +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe-desc.c b/drivers/net/ethernet/amd/xgbe-a0/xgbe-desc.c +new file mode 100644 +index 000000000000..5dd57779c82c +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe-desc.c +@@ -0,0 +1,636 @@ ++/* ++ * 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_rdata(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 = XGBE_GET_DESC_DATA(ring, i); ++ xgbe_unmap_rdata(pdata, rdata); ++ } ++ ++ kfree(ring->rdata); ++ ring->rdata = NULL; ++ } ++ ++ if (ring->rx_hdr_pa.pages) { ++ dma_unmap_page(pdata->dev, ring->rx_hdr_pa.pages_dma, ++ ring->rx_hdr_pa.pages_len, DMA_FROM_DEVICE); ++ put_page(ring->rx_hdr_pa.pages); ++ ++ ring->rx_hdr_pa.pages = NULL; ++ ring->rx_hdr_pa.pages_len = 0; ++ ring->rx_hdr_pa.pages_offset = 0; ++ ring->rx_hdr_pa.pages_dma = 0; ++ } ++ ++ if (ring->rx_buf_pa.pages) { ++ dma_unmap_page(pdata->dev, ring->rx_buf_pa.pages_dma, ++ ring->rx_buf_pa.pages_len, DMA_FROM_DEVICE); ++ put_page(ring->rx_buf_pa.pages); ++ ++ ring->rx_buf_pa.pages = NULL; ++ ring->rx_buf_pa.pages_len = 0; ++ ring->rx_buf_pa.pages_offset = 0; ++ ring->rx_buf_pa.pages_dma = 0; ++ } ++ ++ 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 int xgbe_alloc_pages(struct xgbe_prv_data *pdata, ++ struct xgbe_page_alloc *pa, gfp_t gfp, int order) ++{ ++ struct page *pages = NULL; ++ dma_addr_t pages_dma; ++ int ret; ++ ++ /* Try to obtain pages, decreasing order if necessary */ ++ gfp |= __GFP_COLD | __GFP_COMP; ++ while (order >= 0) { ++ pages = alloc_pages(gfp, order); ++ if (pages) ++ break; ++ ++ order--; ++ } ++ if (!pages) ++ return -ENOMEM; ++ ++ /* Map the pages */ ++ pages_dma = dma_map_page(pdata->dev, pages, 0, ++ PAGE_SIZE << order, DMA_FROM_DEVICE); ++ ret = dma_mapping_error(pdata->dev, pages_dma); ++ if (ret) { ++ put_page(pages); ++ return ret; ++ } ++ ++ pa->pages = pages; ++ pa->pages_len = PAGE_SIZE << order; ++ pa->pages_offset = 0; ++ pa->pages_dma = pages_dma; ++ ++ return 0; ++} ++ ++static void xgbe_set_buffer_data(struct xgbe_buffer_data *bd, ++ struct xgbe_page_alloc *pa, ++ unsigned int len) ++{ ++ get_page(pa->pages); ++ bd->pa = *pa; ++ ++ bd->dma = pa->pages_dma + pa->pages_offset; ++ bd->dma_len = len; ++ ++ pa->pages_offset += len; ++ if ((pa->pages_offset + len) > pa->pages_len) { ++ /* This data descriptor is responsible for unmapping page(s) */ ++ bd->pa_unmap = *pa; ++ ++ /* Get a new allocation next time */ ++ pa->pages = NULL; ++ pa->pages_len = 0; ++ pa->pages_offset = 0; ++ pa->pages_dma = 0; ++ } ++} ++ ++static int xgbe_map_rx_buffer(struct xgbe_prv_data *pdata, ++ struct xgbe_ring *ring, ++ struct xgbe_ring_data *rdata) ++{ ++ int order, ret; ++ ++ if (!ring->rx_hdr_pa.pages) { ++ ret = xgbe_alloc_pages(pdata, &ring->rx_hdr_pa, GFP_ATOMIC, 0); ++ if (ret) ++ return ret; ++ } ++ ++ if (!ring->rx_buf_pa.pages) { ++ order = max_t(int, PAGE_ALLOC_COSTLY_ORDER - 1, 0); ++ ret = xgbe_alloc_pages(pdata, &ring->rx_buf_pa, GFP_ATOMIC, ++ order); ++ if (ret) ++ return ret; ++ } ++ ++ /* Set up the header page info */ ++ xgbe_set_buffer_data(&rdata->rx.hdr, &ring->rx_hdr_pa, ++ XGBE_SKB_ALLOC_SIZE); ++ ++ /* Set up the buffer page info */ ++ xgbe_set_buffer_data(&rdata->rx.buf, &ring->rx_buf_pa, ++ pdata->rx_buf_size); ++ ++ return 0; ++} ++ ++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 = XGBE_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; ++ memset(&ring->tx, 0, sizeof(ring->tx)); ++ ++ 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; ++ 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 = XGBE_GET_DESC_DATA(ring, j); ++ ++ rdata->rdesc = rdesc; ++ rdata->rdesc_dma = rdesc_dma; ++ ++ if (xgbe_map_rx_buffer(pdata, ring, rdata)) ++ break; ++ ++ rdesc++; ++ rdesc_dma += sizeof(struct xgbe_ring_desc); ++ } ++ ++ ring->cur = 0; ++ ring->dirty = 0; ++ ++ hw_if->rx_desc_init(channel); ++ } ++ ++ DBGPR("<--xgbe_wrapper_rx_descriptor_init\n"); ++} ++ ++static void xgbe_unmap_rdata(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; ++ } ++ ++ if (rdata->rx.hdr.pa.pages) ++ put_page(rdata->rx.hdr.pa.pages); ++ ++ if (rdata->rx.hdr.pa_unmap.pages) { ++ dma_unmap_page(pdata->dev, rdata->rx.hdr.pa_unmap.pages_dma, ++ rdata->rx.hdr.pa_unmap.pages_len, ++ DMA_FROM_DEVICE); ++ put_page(rdata->rx.hdr.pa_unmap.pages); ++ } ++ ++ if (rdata->rx.buf.pa.pages) ++ put_page(rdata->rx.buf.pa.pages); ++ ++ if (rdata->rx.buf.pa_unmap.pages) { ++ dma_unmap_page(pdata->dev, rdata->rx.buf.pa_unmap.pages_dma, ++ rdata->rx.buf.pa_unmap.pages_len, ++ DMA_FROM_DEVICE); ++ put_page(rdata->rx.buf.pa_unmap.pages); ++ } ++ ++ memset(&rdata->tx, 0, sizeof(rdata->tx)); ++ memset(&rdata->rx, 0, sizeof(rdata->rx)); ++ ++ rdata->mapped_as_page = 0; ++ ++ if (rdata->state_saved) { ++ rdata->state_saved = 0; ++ rdata->state.incomplete = 0; ++ rdata->state.context_next = 0; ++ rdata->state.skb = NULL; ++ rdata->state.len = 0; ++ rdata->state.error = 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 = XGBE_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; ++ ++ offset = packet->header_len; ++ ++ packet->length += packet->header_len; ++ ++ cur_index++; ++ rdata = XGBE_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, XGBE_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 = XGBE_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, ++ XGBE_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 = XGBE_GET_DESC_DATA(ring, cur_index); ++ } ++ } ++ ++ /* Save the skb address in the last entry. We always have some data ++ * that has been mapped so rdata is always advanced past the last ++ * piece of mapped data - use the entry pointed to by cur_index - 1. ++ */ ++ rdata = XGBE_GET_DESC_DATA(ring, cur_index - 1); ++ 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 = XGBE_GET_DESC_DATA(ring, start_index++); ++ xgbe_unmap_rdata(pdata, rdata); ++ } ++ ++ DBGPR("<--xgbe_map_tx_skb: count=0\n"); ++ ++ return 0; ++} ++ ++void xgbe_a0_init_function_ptrs_desc(struct xgbe_desc_if *desc_if) ++{ ++ DBGPR("-->xgbe_a0_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->map_rx_buffer = xgbe_map_rx_buffer; ++ desc_if->unmap_rdata = xgbe_unmap_rdata; ++ desc_if->wrapper_tx_desc_init = xgbe_wrapper_tx_descriptor_init; ++ desc_if->wrapper_rx_desc_init = xgbe_wrapper_rx_descriptor_init; ++ ++ DBGPR("<--xgbe_a0_init_function_ptrs_desc\n"); ++} +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe-a0/xgbe-dev.c +new file mode 100644 +index 000000000000..2d88739de41c +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe-dev.c +@@ -0,0 +1,2930 @@ ++/* ++ * 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/mdio.h> ++#include <linux/clk.h> ++#include <linux/bitrev.h> ++#include <linux/crc32.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 = pdata->sysclk_rate; ++ ++ /* ++ * 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 = pdata->sysclk_rate; ++ ++ /* ++ * 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->rx_q_count; 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->tx_q_count; 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->rx_q_count; 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->tx_q_count; 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 void xgbe_config_sph_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->rx_ring) ++ break; ++ ++ XGMAC_DMA_IOWRITE_BITS(channel, DMA_CH_CR, SPH, 1); ++ } ++ ++ XGMAC_IOWRITE_BITS(pdata, MAC_RCR, HDSMS, XGBE_SPH_HDSMS_SIZE); ++} ++ ++static int xgbe_write_rss_reg(struct xgbe_prv_data *pdata, unsigned int type, ++ unsigned int index, unsigned int val) ++{ ++ unsigned int wait; ++ int ret = 0; ++ ++ mutex_lock(&pdata->rss_mutex); ++ ++ if (XGMAC_IOREAD_BITS(pdata, MAC_RSSAR, OB)) { ++ ret = -EBUSY; ++ goto unlock; ++ } ++ ++ XGMAC_IOWRITE(pdata, MAC_RSSDR, val); ++ ++ XGMAC_IOWRITE_BITS(pdata, MAC_RSSAR, RSSIA, index); ++ XGMAC_IOWRITE_BITS(pdata, MAC_RSSAR, ADDRT, type); ++ XGMAC_IOWRITE_BITS(pdata, MAC_RSSAR, CT, 0); ++ XGMAC_IOWRITE_BITS(pdata, MAC_RSSAR, OB, 1); ++ ++ wait = 1000; ++ while (wait--) { ++ if (!XGMAC_IOREAD_BITS(pdata, MAC_RSSAR, OB)) ++ goto unlock; ++ ++ usleep_range(1000, 1500); ++ } ++ ++ ret = -EBUSY; ++ ++unlock: ++ mutex_unlock(&pdata->rss_mutex); ++ ++ return ret; ++} ++ ++static int xgbe_write_rss_hash_key(struct xgbe_prv_data *pdata) ++{ ++ unsigned int key_regs = sizeof(pdata->rss_key) / sizeof(u32); ++ unsigned int *key = (unsigned int *)&pdata->rss_key; ++ int ret; ++ ++ while (key_regs--) { ++ ret = xgbe_write_rss_reg(pdata, XGBE_RSS_HASH_KEY_TYPE, ++ key_regs, *key++); ++ if (ret) ++ return ret; ++ } ++ ++ return 0; ++} ++ ++static int xgbe_write_rss_lookup_table(struct xgbe_prv_data *pdata) ++{ ++ unsigned int i; ++ int ret; ++ ++ for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++) { ++ ret = xgbe_write_rss_reg(pdata, ++ XGBE_RSS_LOOKUP_TABLE_TYPE, i, ++ pdata->rss_table[i]); ++ if (ret) ++ return ret; ++ } ++ ++ return 0; ++} ++ ++static int xgbe_set_rss_hash_key(struct xgbe_prv_data *pdata, const u8 *key) ++{ ++ memcpy(pdata->rss_key, key, sizeof(pdata->rss_key)); ++ ++ return xgbe_write_rss_hash_key(pdata); ++} ++ ++static int xgbe_set_rss_lookup_table(struct xgbe_prv_data *pdata, ++ const u32 *table) ++{ ++ unsigned int i; ++ ++ for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++) ++ XGMAC_SET_BITS(pdata->rss_table[i], MAC_RSSDR, DMCH, table[i]); ++ ++ return xgbe_write_rss_lookup_table(pdata); ++} ++ ++static int xgbe_enable_rss(struct xgbe_prv_data *pdata) ++{ ++ int ret; ++ ++ if (!pdata->hw_feat.rss) ++ return -EOPNOTSUPP; ++ ++ /* Program the hash key */ ++ ret = xgbe_write_rss_hash_key(pdata); ++ if (ret) ++ return ret; ++ ++ /* Program the lookup table */ ++ ret = xgbe_write_rss_lookup_table(pdata); ++ if (ret) ++ return ret; ++ ++ /* Set the RSS options */ ++ XGMAC_IOWRITE(pdata, MAC_RSSCR, pdata->rss_options); ++ ++ /* Enable RSS */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_RSSCR, RSSE, 1); ++ ++ return 0; ++} ++ ++static int xgbe_disable_rss(struct xgbe_prv_data *pdata) ++{ ++ if (!pdata->hw_feat.rss) ++ return -EOPNOTSUPP; ++ ++ XGMAC_IOWRITE_BITS(pdata, MAC_RSSCR, RSSE, 0); ++ ++ return 0; ++} ++ ++static void xgbe_config_rss(struct xgbe_prv_data *pdata) ++{ ++ int ret; ++ ++ if (!pdata->hw_feat.rss) ++ return; ++ ++ if (pdata->netdev->features & NETIF_F_RXHASH) ++ ret = xgbe_enable_rss(pdata); ++ else ++ ret = xgbe_disable_rss(pdata); ++ ++ if (ret) ++ netdev_err(pdata->netdev, ++ "error configuring RSS, RSS disabled\n"); ++} ++ ++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->rx_q_count; 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->tx_q_count, 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->rx_q_count; 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->tx_q_count, 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) ++{ ++ struct ieee_pfc *pfc = pdata->pfc; ++ ++ if (pdata->tx_pause || (pfc && pfc->pfc_en)) ++ 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) ++{ ++ struct ieee_pfc *pfc = pdata->pfc; ++ ++ if (pdata->rx_pause || (pfc && pfc->pfc_en)) ++ 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) ++{ ++ struct ieee_pfc *pfc = pdata->pfc; ++ ++ xgbe_config_tx_flow_control(pdata); ++ xgbe_config_rx_flow_control(pdata); ++ ++ XGMAC_IOWRITE_BITS(pdata, MAC_RFCR, PFCE, ++ (pfc && pfc->pfc_en) ? 1 : 0); ++} ++ ++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 using ++ * per channel interrupts) ++ */ ++ if (!pdata->per_channel_irq) ++ 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 (unless using ++ * per channel interrupts) ++ */ ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RBUE, 1); ++ if (!pdata->per_channel_irq) ++ 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_IER, 0); ++ } ++} ++ ++static void xgbe_enable_mac_interrupts(struct xgbe_prv_data *pdata) ++{ ++ unsigned int mac_ier = 0; ++ ++ /* Enable Timestamp interrupt */ ++ XGMAC_SET_BITS(mac_ier, MAC_IER, TSIE, 1); ++ ++ XGMAC_IOWRITE(pdata, MAC_IER, mac_ier); ++ ++ /* Enable all counter interrupts */ ++ XGMAC_IOWRITE_BITS(pdata, MMC_RIER, ALL_INTERRUPTS, 0xffffffff); ++ XGMAC_IOWRITE_BITS(pdata, MMC_TIER, ALL_INTERRUPTS, 0xffffffff); ++} ++ ++static int xgbe_set_gmii_speed(struct xgbe_prv_data *pdata) ++{ ++ if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) == 0x3) ++ return 0; ++ ++ XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0x3); ++ ++ return 0; ++} ++ ++static int xgbe_set_gmii_2500_speed(struct xgbe_prv_data *pdata) ++{ ++ if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) == 0x2) ++ return 0; ++ ++ XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0x2); ++ ++ return 0; ++} ++ ++static int xgbe_set_xgmii_speed(struct xgbe_prv_data *pdata) ++{ ++ if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) == 0) ++ return 0; ++ ++ 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 void xgbe_set_mac_reg(struct xgbe_prv_data *pdata, ++ struct netdev_hw_addr *ha, unsigned int *mac_reg) ++{ ++ unsigned int mac_addr_hi, mac_addr_lo; ++ u8 *mac_addr; ++ ++ mac_addr_lo = 0; ++ mac_addr_hi = 0; ++ ++ if (ha) { ++ 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 mac 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; ++} ++ ++static void xgbe_set_mac_addn_addrs(struct xgbe_prv_data *pdata) ++{ ++ struct net_device *netdev = pdata->netdev; ++ struct netdev_hw_addr *ha; ++ unsigned int mac_reg; ++ unsigned int addn_macs; ++ ++ mac_reg = MAC_MACA1HR; ++ addn_macs = pdata->hw_feat.addn_mac; ++ ++ if (netdev_uc_count(netdev) > addn_macs) { ++ xgbe_set_promiscuous_mode(pdata, 1); ++ } else { ++ netdev_for_each_uc_addr(ha, netdev) { ++ xgbe_set_mac_reg(pdata, ha, &mac_reg); ++ addn_macs--; ++ } ++ ++ if (netdev_mc_count(netdev) > addn_macs) { ++ xgbe_set_all_multicast_mode(pdata, 1); ++ } else { ++ netdev_for_each_mc_addr(ha, netdev) { ++ xgbe_set_mac_reg(pdata, ha, &mac_reg); ++ addn_macs--; ++ } ++ } ++ } ++ ++ /* Clear remaining additional MAC address entries */ ++ while (addn_macs--) ++ xgbe_set_mac_reg(pdata, NULL, &mac_reg); ++} ++ ++static void xgbe_set_mac_hash_table(struct xgbe_prv_data *pdata) ++{ ++ struct net_device *netdev = pdata->netdev; ++ struct netdev_hw_addr *ha; ++ unsigned int hash_reg; ++ unsigned int hash_table_shift, hash_table_count; ++ u32 hash_table[XGBE_MAC_HASH_TABLE_SIZE]; ++ u32 crc; ++ unsigned int i; ++ ++ hash_table_shift = 26 - (pdata->hw_feat.hash_table_size >> 7); ++ hash_table_count = pdata->hw_feat.hash_table_size / 32; ++ memset(hash_table, 0, sizeof(hash_table)); ++ ++ /* Build the MAC Hash Table register values */ ++ netdev_for_each_uc_addr(ha, netdev) { ++ crc = bitrev32(~crc32_le(~0, ha->addr, ETH_ALEN)); ++ crc >>= hash_table_shift; ++ hash_table[crc >> 5] |= (1 << (crc & 0x1f)); ++ } ++ ++ netdev_for_each_mc_addr(ha, netdev) { ++ crc = bitrev32(~crc32_le(~0, ha->addr, ETH_ALEN)); ++ crc >>= hash_table_shift; ++ hash_table[crc >> 5] |= (1 << (crc & 0x1f)); ++ } ++ ++ /* Set the MAC Hash Table registers */ ++ hash_reg = MAC_HTR0; ++ for (i = 0; i < hash_table_count; i++) { ++ XGMAC_IOWRITE(pdata, hash_reg, hash_table[i]); ++ hash_reg += MAC_HTR_INC; ++ } ++} ++ ++static int xgbe_add_mac_addresses(struct xgbe_prv_data *pdata) ++{ ++ if (pdata->hw_feat.hash_table_size) ++ xgbe_set_mac_hash_table(pdata); ++ else ++ xgbe_set_mac_addn_addrs(pdata); ++ ++ 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 implementation has reversed the devices in ++ * package registers so we need to change 05 to 06 and ++ * 06 to 05 if being read (these registers are readonly ++ * so no need to do this in the write function) ++ */ ++ if ((mmd_address & 0xffff) == 0x05) ++ mmd_address = (mmd_address & ~0xffff) | 0x06; ++ else if ((mmd_address & 0xffff) == 0x06) ++ mmd_address = (mmd_address & ~0xffff) | 0x05; ++ ++ /* 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); ++ ++ /* If the PCS is changing modes, match the MAC speed to it */ ++ if (((mmd_address >> 16) == MDIO_MMD_PCS) && ++ ((mmd_address & 0xffff) == MDIO_CTRL2)) { ++ struct phy_device *phydev = pdata->phydev; ++ ++ if (mmd_data & MDIO_PCS_CTRL2_TYPE) { ++ /* KX mode */ ++ if (phydev->supported & SUPPORTED_1000baseKX_Full) ++ xgbe_set_gmii_speed(pdata); ++ else ++ xgbe_set_gmii_2500_speed(pdata); ++ } else { ++ /* KR mode */ ++ xgbe_set_xgmii_speed(pdata); ++ } ++ } ++ ++ /* 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 int xgbe_enable_rx_vlan_filtering(struct xgbe_prv_data *pdata) ++{ ++ /* Enable VLAN filtering */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_PFR, VTFE, 1); ++ ++ /* Enable VLAN Hash Table filtering */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VTHM, 1); ++ ++ /* Disable VLAN tag inverse matching */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VTIM, 0); ++ ++ /* Only filter on the lower 12-bits of the VLAN tag */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ETV, 1); ++ ++ /* In order for the VLAN Hash Table filtering to be effective, ++ * the VLAN tag identifier in the VLAN Tag Register must not ++ * be zero. Set the VLAN tag identifier to "1" to enable the ++ * VLAN Hash Table filtering. This implies that a VLAN tag of ++ * 1 will always pass filtering. ++ */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VL, 1); ++ ++ return 0; ++} ++ ++static int xgbe_disable_rx_vlan_filtering(struct xgbe_prv_data *pdata) ++{ ++ /* Disable VLAN filtering */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_PFR, VTFE, 0); ++ ++ return 0; ++} ++ ++#ifndef CRCPOLY_LE ++#define CRCPOLY_LE 0xedb88320 ++#endif ++static u32 xgbe_vid_crc32_le(__le16 vid_le) ++{ ++ u32 poly = CRCPOLY_LE; ++ u32 crc = ~0; ++ u32 temp = 0; ++ unsigned char *data = (unsigned char *)&vid_le; ++ unsigned char data_byte = 0; ++ int i, bits; ++ ++ bits = get_bitmask_order(VLAN_VID_MASK); ++ for (i = 0; i < bits; i++) { ++ if ((i % 8) == 0) ++ data_byte = data[i / 8]; ++ ++ temp = ((crc & 1) ^ data_byte) & 1; ++ crc >>= 1; ++ data_byte >>= 1; ++ ++ if (temp) ++ crc ^= poly; ++ } ++ ++ return crc; ++} ++ ++static int xgbe_update_vlan_hash_table(struct xgbe_prv_data *pdata) ++{ ++ u32 crc; ++ u16 vid; ++ __le16 vid_le; ++ u16 vlan_hash_table = 0; ++ ++ /* Generate the VLAN Hash Table value */ ++ for_each_set_bit(vid, pdata->active_vlans, VLAN_N_VID) { ++ /* Get the CRC32 value of the VLAN ID */ ++ vid_le = cpu_to_le16(vid); ++ crc = bitrev32(~xgbe_vid_crc32_le(vid_le)) >> 28; ++ ++ vlan_hash_table |= (1 << crc); ++ } ++ ++ /* Set the VLAN Hash Table filtering register */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_VLANHTR, VLHT, vlan_hash_table); ++ ++ 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; ++ ++ /* Make sure ownership is written to the descriptor */ ++ wmb(); ++} ++ ++static void xgbe_tx_desc_init(struct xgbe_channel *channel) ++{ ++ struct xgbe_ring *ring = channel->tx_ring; ++ struct xgbe_ring_data *rdata; ++ int i; ++ int start_index = ring->cur; ++ ++ DBGPR("-->tx_desc_init\n"); ++ ++ /* Initialze all descriptors */ ++ for (i = 0; i < ring->rdesc_count; i++) { ++ rdata = XGBE_GET_DESC_DATA(ring, i); ++ ++ /* Initialize Tx descriptor */ ++ xgbe_tx_desc_reset(rdata); ++ } ++ ++ /* 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 = XGBE_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 header dma address (lo) ++ * Set buffer 1 (hi) address to header dma address (hi) ++ * Set buffer 2 (lo) address to buffer dma address (lo) ++ * Set buffer 2 (hi) address to buffer dma address (hi) and ++ * set control bits OWN and INTE ++ */ ++ rdesc->desc0 = cpu_to_le32(lower_32_bits(rdata->rx.hdr.dma)); ++ rdesc->desc1 = cpu_to_le32(upper_32_bits(rdata->rx.hdr.dma)); ++ rdesc->desc2 = cpu_to_le32(lower_32_bits(rdata->rx.buf.dma)); ++ rdesc->desc3 = cpu_to_le32(upper_32_bits(rdata->rx.buf.dma)); ++ ++ XGMAC_SET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, INTE, ++ rdata->interrupt ? 1 : 0); ++ ++ /* 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; ++ 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 = XGBE_GET_DESC_DATA(ring, i); ++ ++ /* Set interrupt on completion bit as appropriate */ ++ if (rx_coalesce && (!rx_frames || ((i + 1) % rx_frames))) ++ rdata->interrupt = 0; ++ else ++ rdata->interrupt = 1; ++ ++ /* Initialize Rx descriptor */ ++ xgbe_rx_desc_reset(rdata); ++ } ++ ++ /* 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 = XGBE_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 = XGBE_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_update_tstamp_addend(struct xgbe_prv_data *pdata, ++ unsigned int addend) ++{ ++ /* Set the addend register value and tell the device */ ++ XGMAC_IOWRITE(pdata, MAC_TSAR, addend); ++ XGMAC_IOWRITE_BITS(pdata, MAC_TSCR, TSADDREG, 1); ++ ++ /* Wait for addend update to complete */ ++ while (XGMAC_IOREAD_BITS(pdata, MAC_TSCR, TSADDREG)) ++ udelay(5); ++} ++ ++static void xgbe_set_tstamp_time(struct xgbe_prv_data *pdata, unsigned int sec, ++ unsigned int nsec) ++{ ++ /* Set the time values and tell the device */ ++ XGMAC_IOWRITE(pdata, MAC_STSUR, sec); ++ XGMAC_IOWRITE(pdata, MAC_STNUR, nsec); ++ XGMAC_IOWRITE_BITS(pdata, MAC_TSCR, TSINIT, 1); ++ ++ /* Wait for time update to complete */ ++ while (XGMAC_IOREAD_BITS(pdata, MAC_TSCR, TSINIT)) ++ udelay(5); ++} ++ ++static u64 xgbe_get_tstamp_time(struct xgbe_prv_data *pdata) ++{ ++ u64 nsec; ++ ++ nsec = XGMAC_IOREAD(pdata, MAC_STSR); ++ nsec *= NSEC_PER_SEC; ++ nsec += XGMAC_IOREAD(pdata, MAC_STNR); ++ ++ return nsec; ++} ++ ++static u64 xgbe_get_tx_tstamp(struct xgbe_prv_data *pdata) ++{ ++ unsigned int tx_snr; ++ u64 nsec; ++ ++ tx_snr = XGMAC_IOREAD(pdata, MAC_TXSNR); ++ if (XGMAC_GET_BITS(tx_snr, MAC_TXSNR, TXTSSTSMIS)) ++ return 0; ++ ++ nsec = XGMAC_IOREAD(pdata, MAC_TXSSR); ++ nsec *= NSEC_PER_SEC; ++ nsec += tx_snr; ++ ++ return nsec; ++} ++ ++static void xgbe_get_rx_tstamp(struct xgbe_packet_data *packet, ++ struct xgbe_ring_desc *rdesc) ++{ ++ u64 nsec; ++ ++ if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_CONTEXT_DESC3, TSA) && ++ !XGMAC_GET_BITS_LE(rdesc->desc3, RX_CONTEXT_DESC3, TSD)) { ++ nsec = le32_to_cpu(rdesc->desc1); ++ nsec <<= 32; ++ nsec |= le32_to_cpu(rdesc->desc0); ++ if (nsec != 0xffffffffffffffffULL) { ++ packet->rx_tstamp = nsec; ++ XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, ++ RX_TSTAMP, 1); ++ } ++ } ++} ++ ++static int xgbe_config_tstamp(struct xgbe_prv_data *pdata, ++ unsigned int mac_tscr) ++{ ++ /* Set one nano-second accuracy */ ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSCTRLSSR, 1); ++ ++ /* Set fine timestamp update */ ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSCFUPDT, 1); ++ ++ /* Overwrite earlier timestamps */ ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TXTSSTSM, 1); ++ ++ XGMAC_IOWRITE(pdata, MAC_TSCR, mac_tscr); ++ ++ /* Exit if timestamping is not enabled */ ++ if (!XGMAC_GET_BITS(mac_tscr, MAC_TSCR, TSENA)) ++ return 0; ++ ++ /* Initialize time registers */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_SSIR, SSINC, XGBE_TSTAMP_SSINC); ++ XGMAC_IOWRITE_BITS(pdata, MAC_SSIR, SNSINC, XGBE_TSTAMP_SNSINC); ++ xgbe_update_tstamp_addend(pdata, pdata->tstamp_addend); ++ xgbe_set_tstamp_time(pdata, 0, 0); ++ ++ /* Initialize the timecounter */ ++ timecounter_init(&pdata->tstamp_tc, &pdata->tstamp_cc, ++ ktime_to_ns(ktime_get_real())); ++ ++ return 0; ++} ++ ++static void xgbe_config_dcb_tc(struct xgbe_prv_data *pdata) ++{ ++ struct ieee_ets *ets = pdata->ets; ++ unsigned int total_weight, min_weight, weight; ++ unsigned int i; ++ ++ if (!ets) ++ return; ++ ++ /* Set Tx to deficit weighted round robin scheduling algorithm (when ++ * traffic class is using ETS algorithm) ++ */ ++ XGMAC_IOWRITE_BITS(pdata, MTL_OMR, ETSALG, MTL_ETSALG_DWRR); ++ ++ /* Set Traffic Class algorithms */ ++ total_weight = pdata->netdev->mtu * pdata->hw_feat.tc_cnt; ++ min_weight = total_weight / 100; ++ if (!min_weight) ++ min_weight = 1; ++ ++ for (i = 0; i < pdata->hw_feat.tc_cnt; i++) { ++ switch (ets->tc_tsa[i]) { ++ case IEEE_8021QAZ_TSA_STRICT: ++ DBGPR(" TC%u using SP\n", i); ++ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA, ++ MTL_TSA_SP); ++ break; ++ case IEEE_8021QAZ_TSA_ETS: ++ weight = total_weight * ets->tc_tx_bw[i] / 100; ++ weight = clamp(weight, min_weight, total_weight); ++ ++ DBGPR(" TC%u using DWRR (weight %u)\n", i, weight); ++ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA, ++ MTL_TSA_ETS); ++ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_QWR, QW, ++ weight); ++ break; ++ } ++ } ++} ++ ++static void xgbe_config_dcb_pfc(struct xgbe_prv_data *pdata) ++{ ++ struct ieee_pfc *pfc = pdata->pfc; ++ struct ieee_ets *ets = pdata->ets; ++ unsigned int mask, reg, reg_val; ++ unsigned int tc, prio; ++ ++ if (!pfc || !ets) ++ return; ++ ++ for (tc = 0; tc < pdata->hw_feat.tc_cnt; tc++) { ++ mask = 0; ++ for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; prio++) { ++ if ((pfc->pfc_en & (1 << prio)) && ++ (ets->prio_tc[prio] == tc)) ++ mask |= (1 << prio); ++ } ++ mask &= 0xff; ++ ++ DBGPR(" TC%u PFC mask=%#x\n", tc, mask); ++ reg = MTL_TCPM0R + (MTL_TCPM_INC * (tc / MTL_TCPM_TC_PER_REG)); ++ reg_val = XGMAC_IOREAD(pdata, reg); ++ ++ reg_val &= ~(0xff << ((tc % MTL_TCPM_TC_PER_REG) << 3)); ++ reg_val |= (mask << ((tc % MTL_TCPM_TC_PER_REG) << 3)); ++ ++ XGMAC_IOWRITE(pdata, reg, reg_val); ++ } ++ ++ xgbe_config_flow_control(pdata); ++} ++ ++static void xgbe_tx_start_xmit(struct xgbe_channel *channel, ++ struct xgbe_ring *ring) ++{ ++ struct xgbe_prv_data *pdata = channel->pdata; ++ struct xgbe_ring_data *rdata; ++ ++ /* Issue a poll command to Tx DMA by writing address ++ * of next immediate free descriptor */ ++ rdata = XGBE_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 (pdata->tx_usecs && !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); ++ } ++ ++ ring->tx.xmit_more = 0; ++} ++ ++static void xgbe_dev_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_set_ic; ++ int start_index = ring->cur; ++ int cur_index = ring->cur; ++ int i; ++ ++ DBGPR("-->xgbe_dev_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; ++ ++ /* Determine if an interrupt should be generated for this Tx: ++ * Interrupt: ++ * - Tx frame count exceeds the frame count setting ++ * - Addition of Tx frame count to the frame count since the ++ * last interrupt was set exceeds the frame count setting ++ * No interrupt: ++ * - No frame count setting specified (ethtool -C ethX tx-frames 0) ++ * - Addition of Tx frame count to the frame count since the ++ * last interrupt was set does not exceed the frame count setting ++ */ ++ ring->coalesce_count += packet->tx_packets; ++ if (!pdata->tx_frames) ++ tx_set_ic = 0; ++ else if (packet->tx_packets > pdata->tx_frames) ++ tx_set_ic = 1; ++ else if ((ring->coalesce_count % pdata->tx_frames) < ++ packet->tx_packets) ++ tx_set_ic = 1; ++ else ++ tx_set_ic = 0; ++ ++ rdata = XGBE_GET_DESC_DATA(ring, cur_index); ++ 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; ++ } ++ ++ cur_index++; ++ rdata = XGBE_GET_DESC_DATA(ring, cur_index); ++ 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); ++ ++ /* Timestamp enablement check */ ++ if (XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, PTP)) ++ XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, TTSE, 1); ++ ++ /* 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 (cur_index != 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 = cur_index - start_index + 1; i < packet->rdesc_count; i++) { ++ cur_index++; ++ rdata = XGBE_GET_DESC_DATA(ring, cur_index); ++ 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 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); ++ ++ /* Set IC bit based on Tx coalescing settings */ ++ if (tx_set_ic) ++ XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, IC, 1); ++ ++ /* Save the Tx info to report back during cleanup */ ++ rdata->tx.packets = packet->tx_packets; ++ rdata->tx.bytes = packet->tx_bytes; ++ ++ /* 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 = XGBE_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_a0_dump_tx_desc(ring, start_index, packet->rdesc_count, 1); ++#endif ++ ++ /* Make sure ownership is written to the descriptor */ ++ wmb(); ++ ++ ring->cur = cur_index + 1; ++ if (!packet->skb->xmit_more || ++ netif_xmit_stopped(netdev_get_tx_queue(pdata->netdev, ++ channel->queue_index))) ++ xgbe_tx_start_xmit(channel, ring); ++ else ++ ring->tx.xmit_more = 1; ++ ++ 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_dev_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; ++ struct net_device *netdev = channel->pdata->netdev; ++ unsigned int err, etlt, l34t; ++ ++ DBGPR("-->xgbe_dev_read: cur = %d\n", ring->cur); ++ ++ rdata = XGBE_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; ++ ++ /* Make sure descriptor fields are read after reading the OWN bit */ ++ rmb(); ++ ++#ifdef XGMAC_ENABLE_RX_DESC_DUMP ++ xgbe_a0_dump_rx_desc(ring, rdesc, ring->cur); ++#endif ++ ++ if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, CTXT)) { ++ /* Timestamp Context Descriptor */ ++ xgbe_get_rx_tstamp(packet, rdesc); ++ ++ XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, ++ CONTEXT, 1); ++ XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, ++ CONTEXT_NEXT, 0); ++ return 0; ++ } ++ ++ /* Normal Descriptor, be sure Context Descriptor bit is off */ ++ XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, CONTEXT, 0); ++ ++ /* Indicate if a Context Descriptor is next */ ++ if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, CDA)) ++ XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, ++ CONTEXT_NEXT, 1); ++ ++ /* Get the header length */ ++ if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, FD)) ++ rdata->rx.hdr_len = XGMAC_GET_BITS_LE(rdesc->desc2, ++ RX_NORMAL_DESC2, HL); ++ ++ /* Get the RSS hash */ ++ if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, RSV)) { ++ XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, ++ RSS_HASH, 1); ++ ++ packet->rss_hash = le32_to_cpu(rdesc->desc1); ++ ++ l34t = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, L34T); ++ switch (l34t) { ++ case RX_DESC3_L34T_IPV4_TCP: ++ case RX_DESC3_L34T_IPV4_UDP: ++ case RX_DESC3_L34T_IPV6_TCP: ++ case RX_DESC3_L34T_IPV6_UDP: ++ packet->rss_hash_type = PKT_HASH_TYPE_L4; ++ break; ++ default: ++ packet->rss_hash_type = PKT_HASH_TYPE_L3; ++ } ++ } ++ ++ /* Get the packet length */ ++ rdata->rx.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 || !etlt) { ++ /* No error if err is 0 or etlt is 0 */ ++ if ((etlt == 0x09) && ++ (netdev->features & NETIF_F_HW_VLAN_CTAG_RX)) { ++ 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 int xgbe_enable_int(struct xgbe_channel *channel, ++ enum xgbe_int int_id) ++{ ++ unsigned int dma_ch_ier; ++ ++ dma_ch_ier = XGMAC_DMA_IOREAD(channel, DMA_CH_IER); ++ ++ switch (int_id) { ++ case XGMAC_INT_DMA_CH_SR_TI: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TIE, 1); ++ break; ++ case XGMAC_INT_DMA_CH_SR_TPS: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TXSE, 1); ++ break; ++ case XGMAC_INT_DMA_CH_SR_TBU: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TBUE, 1); ++ break; ++ case XGMAC_INT_DMA_CH_SR_RI: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RIE, 1); ++ break; ++ case XGMAC_INT_DMA_CH_SR_RBU: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RBUE, 1); ++ break; ++ case XGMAC_INT_DMA_CH_SR_RPS: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RSE, 1); ++ break; ++ case XGMAC_INT_DMA_CH_SR_TI_RI: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TIE, 1); ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RIE, 1); ++ break; ++ case XGMAC_INT_DMA_CH_SR_FBE: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, FBEE, 1); ++ break; ++ case XGMAC_INT_DMA_ALL: ++ dma_ch_ier |= channel->saved_ier; ++ break; ++ default: ++ return -1; ++ } ++ ++ XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, dma_ch_ier); ++ ++ return 0; ++} ++ ++static int xgbe_disable_int(struct xgbe_channel *channel, ++ enum xgbe_int int_id) ++{ ++ unsigned int dma_ch_ier; ++ ++ dma_ch_ier = XGMAC_DMA_IOREAD(channel, DMA_CH_IER); ++ ++ switch (int_id) { ++ case XGMAC_INT_DMA_CH_SR_TI: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TIE, 0); ++ break; ++ case XGMAC_INT_DMA_CH_SR_TPS: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TXSE, 0); ++ break; ++ case XGMAC_INT_DMA_CH_SR_TBU: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TBUE, 0); ++ break; ++ case XGMAC_INT_DMA_CH_SR_RI: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RIE, 0); ++ break; ++ case XGMAC_INT_DMA_CH_SR_RBU: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RBUE, 0); ++ break; ++ case XGMAC_INT_DMA_CH_SR_RPS: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RSE, 0); ++ break; ++ case XGMAC_INT_DMA_CH_SR_TI_RI: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, TIE, 0); ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, RIE, 0); ++ break; ++ case XGMAC_INT_DMA_CH_SR_FBE: ++ XGMAC_SET_BITS(dma_ch_ier, DMA_CH_IER, FBEE, 0); ++ break; ++ case XGMAC_INT_DMA_ALL: ++ channel->saved_ier = dma_ch_ier & XGBE_DMA_INTERRUPT_MASK; ++ dma_ch_ier &= ~XGBE_DMA_INTERRUPT_MASK; ++ break; ++ default: ++ return -1; ++ } ++ ++ XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, dma_ch_ier); ++ ++ 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; ++ ++ if (XGMAC_GET_BITS(pdata->hw_feat.version, MAC_VR, SNPSVER) < 0x21) ++ return 0; ++ ++ for (i = 0; i < pdata->tx_q_count; i++) ++ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, FTQ, 1); ++ ++ /* Poll Until Poll Condition */ ++ for (i = 0; i < pdata->tx_q_count; 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); ++ XGMAC_IOWRITE_BITS(pdata, DMA_SBMR, BLEN_256, 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, pdata->arcache); ++ XGMAC_SET_BITS(arcache, DMA_AXIARCR, DRD, pdata->axdomain); ++ XGMAC_SET_BITS(arcache, DMA_AXIARCR, TEC, pdata->arcache); ++ XGMAC_SET_BITS(arcache, DMA_AXIARCR, TED, pdata->axdomain); ++ XGMAC_SET_BITS(arcache, DMA_AXIARCR, THC, pdata->arcache); ++ XGMAC_SET_BITS(arcache, DMA_AXIARCR, THD, pdata->axdomain); ++ XGMAC_IOWRITE(pdata, DMA_AXIARCR, arcache); ++ ++ awcache = 0; ++ XGMAC_SET_BITS(awcache, DMA_AXIAWCR, DWC, pdata->awcache); ++ XGMAC_SET_BITS(awcache, DMA_AXIAWCR, DWD, pdata->axdomain); ++ XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RPC, pdata->awcache); ++ XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RPD, pdata->axdomain); ++ XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RHC, pdata->awcache); ++ XGMAC_SET_BITS(awcache, DMA_AXIAWCR, RHD, pdata->axdomain); ++ XGMAC_SET_BITS(awcache, DMA_AXIAWCR, TDC, pdata->awcache); ++ XGMAC_SET_BITS(awcache, DMA_AXIAWCR, TDD, pdata->axdomain); ++ 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 */ ++ XGMAC_IOWRITE_BITS(pdata, MTL_OMR, ETSALG, MTL_ETSALG_WRR); ++ ++ /* Set Tx traffic classes to use WRR algorithm with equal weights */ ++ for (i = 0; i < pdata->hw_feat.tc_cnt; i++) { ++ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA, ++ MTL_TSA_ETS); ++ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_QWR, QW, 1); ++ } ++ ++ /* 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 int fifo_size, ++ unsigned int 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 = XGBE_FIFO_SIZE_B(128); ++ break; ++ case 1: ++ q_fifo_size = XGBE_FIFO_SIZE_B(256); ++ break; ++ case 2: ++ q_fifo_size = XGBE_FIFO_SIZE_B(512); ++ break; ++ case 3: ++ q_fifo_size = XGBE_FIFO_SIZE_KB(1); ++ break; ++ case 4: ++ q_fifo_size = XGBE_FIFO_SIZE_KB(2); ++ break; ++ case 5: ++ q_fifo_size = XGBE_FIFO_SIZE_KB(4); ++ break; ++ case 6: ++ q_fifo_size = XGBE_FIFO_SIZE_KB(8); ++ break; ++ case 7: ++ q_fifo_size = XGBE_FIFO_SIZE_KB(16); ++ break; ++ case 8: ++ q_fifo_size = XGBE_FIFO_SIZE_KB(32); ++ break; ++ case 9: ++ q_fifo_size = XGBE_FIFO_SIZE_KB(64); ++ break; ++ case 10: ++ q_fifo_size = XGBE_FIFO_SIZE_KB(128); ++ break; ++ case 11: ++ q_fifo_size = XGBE_FIFO_SIZE_KB(256); ++ break; ++ } ++ ++ /* The configured value is not the actual amount of fifo RAM */ ++ q_fifo_size = min_t(unsigned int, XGBE_FIFO_MAX, q_fifo_size); ++ ++ q_fifo_size = q_fifo_size / queue_count; ++ ++ /* Set the queue fifo size programmable value */ ++ if (q_fifo_size >= XGBE_FIFO_SIZE_KB(256)) ++ p_fifo = XGMAC_MTL_FIFO_SIZE_256K; ++ else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(128)) ++ p_fifo = XGMAC_MTL_FIFO_SIZE_128K; ++ else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(64)) ++ p_fifo = XGMAC_MTL_FIFO_SIZE_64K; ++ else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(32)) ++ p_fifo = XGMAC_MTL_FIFO_SIZE_32K; ++ else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(16)) ++ p_fifo = XGMAC_MTL_FIFO_SIZE_16K; ++ else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(8)) ++ p_fifo = XGMAC_MTL_FIFO_SIZE_8K; ++ else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(4)) ++ p_fifo = XGMAC_MTL_FIFO_SIZE_4K; ++ else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(2)) ++ p_fifo = XGMAC_MTL_FIFO_SIZE_2K; ++ else if (q_fifo_size >= XGBE_FIFO_SIZE_KB(1)) ++ p_fifo = XGMAC_MTL_FIFO_SIZE_1K; ++ else if (q_fifo_size >= XGBE_FIFO_SIZE_B(512)) ++ p_fifo = XGMAC_MTL_FIFO_SIZE_512; ++ else if (q_fifo_size >= XGBE_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->tx_q_count); ++ ++ for (i = 0; i < pdata->tx_q_count; 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->tx_q_count, ((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->rx_q_count); ++ ++ for (i = 0; i < pdata->rx_q_count; 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->rx_q_count, ((fifo_size + 1) * 256)); ++} ++ ++static void xgbe_config_queue_mapping(struct xgbe_prv_data *pdata) ++{ ++ unsigned int qptc, qptc_extra, queue; ++ unsigned int prio_queues; ++ unsigned int ppq, ppq_extra, prio; ++ unsigned int mask; ++ unsigned int i, j, reg, reg_val; ++ ++ /* Map the MTL Tx Queues to Traffic Classes ++ * Note: Tx Queues >= Traffic Classes ++ */ ++ qptc = pdata->tx_q_count / pdata->hw_feat.tc_cnt; ++ qptc_extra = pdata->tx_q_count % pdata->hw_feat.tc_cnt; ++ ++ for (i = 0, queue = 0; i < pdata->hw_feat.tc_cnt; i++) { ++ for (j = 0; j < qptc; j++) { ++ DBGPR(" TXq%u mapped to TC%u\n", queue, i); ++ XGMAC_MTL_IOWRITE_BITS(pdata, queue, MTL_Q_TQOMR, ++ Q2TCMAP, i); ++ pdata->q2tc_map[queue++] = i; ++ } ++ ++ if (i < qptc_extra) { ++ DBGPR(" TXq%u mapped to TC%u\n", queue, i); ++ XGMAC_MTL_IOWRITE_BITS(pdata, queue, MTL_Q_TQOMR, ++ Q2TCMAP, i); ++ pdata->q2tc_map[queue++] = i; ++ } ++ } ++ ++ /* Map the 8 VLAN priority values to available MTL Rx queues */ ++ prio_queues = min_t(unsigned int, IEEE_8021QAZ_MAX_TCS, ++ pdata->rx_q_count); ++ ppq = IEEE_8021QAZ_MAX_TCS / prio_queues; ++ ppq_extra = IEEE_8021QAZ_MAX_TCS % prio_queues; ++ ++ reg = MAC_RQC2R; ++ reg_val = 0; ++ for (i = 0, prio = 0; i < prio_queues;) { ++ mask = 0; ++ for (j = 0; j < ppq; j++) { ++ DBGPR(" PRIO%u mapped to RXq%u\n", prio, i); ++ mask |= (1 << prio); ++ pdata->prio2q_map[prio++] = i; ++ } ++ ++ if (i < ppq_extra) { ++ DBGPR(" PRIO%u mapped to RXq%u\n", prio, i); ++ mask |= (1 << prio); ++ pdata->prio2q_map[prio++] = i; ++ } ++ ++ reg_val |= (mask << ((i++ % MAC_RQC2_Q_PER_REG) << 3)); ++ ++ if ((i % MAC_RQC2_Q_PER_REG) && (i != prio_queues)) ++ continue; ++ ++ XGMAC_IOWRITE(pdata, reg, reg_val); ++ reg += MAC_RQC2_INC; ++ reg_val = 0; ++ } ++ ++ /* Select dynamic mapping of MTL Rx queue to DMA Rx channel */ ++ reg = MTL_RQDCM0R; ++ reg_val = 0; ++ for (i = 0; i < pdata->rx_q_count;) { ++ reg_val |= (0x80 << ((i++ % MTL_RQDCM_Q_PER_REG) << 3)); ++ ++ if ((i % MTL_RQDCM_Q_PER_REG) && (i != pdata->rx_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->rx_q_count; 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); ++ ++ /* Filtering is done using perfect filtering and hash filtering */ ++ if (pdata->hw_feat.hash_table_size) { ++ XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HPF, 1); ++ XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HUC, 1); ++ XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HMC, 1); ++ } ++} ++ ++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_mac_speed(struct xgbe_prv_data *pdata) ++{ ++ switch (pdata->phy_speed) { ++ case SPEED_10000: ++ xgbe_set_xgmii_speed(pdata); ++ break; ++ ++ case SPEED_2500: ++ xgbe_set_gmii_2500_speed(pdata); ++ break; ++ ++ case SPEED_1000: ++ xgbe_set_gmii_speed(pdata); ++ break; ++ } ++} ++ ++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) ++{ ++ /* Indicate that VLAN Tx CTAGs come from context descriptors */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, CSVL, 0); ++ XGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, VLTI, 1); ++ ++ /* Set the current VLAN Hash Table register value */ ++ xgbe_update_vlan_hash_table(pdata); ++ ++ if (pdata->netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER) ++ xgbe_enable_rx_vlan_filtering(pdata); ++ else ++ xgbe_disable_rx_vlan_filtering(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 u64 xgbe_mmc_read(struct xgbe_prv_data *pdata, unsigned int reg_lo) ++{ ++ bool read_hi; ++ u64 val; ++ ++ switch (reg_lo) { ++ /* These registers are always 64 bit */ ++ case MMC_TXOCTETCOUNT_GB_LO: ++ case MMC_TXOCTETCOUNT_G_LO: ++ case MMC_RXOCTETCOUNT_GB_LO: ++ case MMC_RXOCTETCOUNT_G_LO: ++ read_hi = true; ++ break; ++ ++ default: ++ read_hi = false; ++ }; ++ ++ val = XGMAC_IOREAD(pdata, reg_lo); ++ ++ if (read_hi) ++ val |= ((u64)XGMAC_IOREAD(pdata, reg_lo + 4) << 32); ++ ++ return val; ++} ++ ++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 += ++ xgbe_mmc_read(pdata, MMC_TXOCTETCOUNT_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXFRAMECOUNT_GB)) ++ stats->txframecount_gb += ++ xgbe_mmc_read(pdata, MMC_TXFRAMECOUNT_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXBROADCASTFRAMES_G)) ++ stats->txbroadcastframes_g += ++ xgbe_mmc_read(pdata, MMC_TXBROADCASTFRAMES_G_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXMULTICASTFRAMES_G)) ++ stats->txmulticastframes_g += ++ xgbe_mmc_read(pdata, MMC_TXMULTICASTFRAMES_G_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX64OCTETS_GB)) ++ stats->tx64octets_gb += ++ xgbe_mmc_read(pdata, MMC_TX64OCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX65TO127OCTETS_GB)) ++ stats->tx65to127octets_gb += ++ xgbe_mmc_read(pdata, MMC_TX65TO127OCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX128TO255OCTETS_GB)) ++ stats->tx128to255octets_gb += ++ xgbe_mmc_read(pdata, MMC_TX128TO255OCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX256TO511OCTETS_GB)) ++ stats->tx256to511octets_gb += ++ xgbe_mmc_read(pdata, MMC_TX256TO511OCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX512TO1023OCTETS_GB)) ++ stats->tx512to1023octets_gb += ++ xgbe_mmc_read(pdata, MMC_TX512TO1023OCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX1024TOMAXOCTETS_GB)) ++ stats->tx1024tomaxoctets_gb += ++ xgbe_mmc_read(pdata, MMC_TX1024TOMAXOCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXUNICASTFRAMES_GB)) ++ stats->txunicastframes_gb += ++ xgbe_mmc_read(pdata, MMC_TXUNICASTFRAMES_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXMULTICASTFRAMES_GB)) ++ stats->txmulticastframes_gb += ++ xgbe_mmc_read(pdata, MMC_TXMULTICASTFRAMES_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXBROADCASTFRAMES_GB)) ++ stats->txbroadcastframes_g += ++ xgbe_mmc_read(pdata, MMC_TXBROADCASTFRAMES_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXUNDERFLOWERROR)) ++ stats->txunderflowerror += ++ xgbe_mmc_read(pdata, MMC_TXUNDERFLOWERROR_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXOCTETCOUNT_G)) ++ stats->txoctetcount_g += ++ xgbe_mmc_read(pdata, MMC_TXOCTETCOUNT_G_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXFRAMECOUNT_G)) ++ stats->txframecount_g += ++ xgbe_mmc_read(pdata, MMC_TXFRAMECOUNT_G_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXPAUSEFRAMES)) ++ stats->txpauseframes += ++ xgbe_mmc_read(pdata, MMC_TXPAUSEFRAMES_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXVLANFRAMES_G)) ++ stats->txvlanframes_g += ++ xgbe_mmc_read(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 += ++ xgbe_mmc_read(pdata, MMC_RXFRAMECOUNT_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOCTETCOUNT_GB)) ++ stats->rxoctetcount_gb += ++ xgbe_mmc_read(pdata, MMC_RXOCTETCOUNT_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOCTETCOUNT_G)) ++ stats->rxoctetcount_g += ++ xgbe_mmc_read(pdata, MMC_RXOCTETCOUNT_G_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXBROADCASTFRAMES_G)) ++ stats->rxbroadcastframes_g += ++ xgbe_mmc_read(pdata, MMC_RXBROADCASTFRAMES_G_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXMULTICASTFRAMES_G)) ++ stats->rxmulticastframes_g += ++ xgbe_mmc_read(pdata, MMC_RXMULTICASTFRAMES_G_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXCRCERROR)) ++ stats->rxcrcerror += ++ xgbe_mmc_read(pdata, MMC_RXCRCERROR_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXRUNTERROR)) ++ stats->rxrunterror += ++ xgbe_mmc_read(pdata, MMC_RXRUNTERROR); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXJABBERERROR)) ++ stats->rxjabbererror += ++ xgbe_mmc_read(pdata, MMC_RXJABBERERROR); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXUNDERSIZE_G)) ++ stats->rxundersize_g += ++ xgbe_mmc_read(pdata, MMC_RXUNDERSIZE_G); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOVERSIZE_G)) ++ stats->rxoversize_g += ++ xgbe_mmc_read(pdata, MMC_RXOVERSIZE_G); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX64OCTETS_GB)) ++ stats->rx64octets_gb += ++ xgbe_mmc_read(pdata, MMC_RX64OCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX65TO127OCTETS_GB)) ++ stats->rx65to127octets_gb += ++ xgbe_mmc_read(pdata, MMC_RX65TO127OCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX128TO255OCTETS_GB)) ++ stats->rx128to255octets_gb += ++ xgbe_mmc_read(pdata, MMC_RX128TO255OCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX256TO511OCTETS_GB)) ++ stats->rx256to511octets_gb += ++ xgbe_mmc_read(pdata, MMC_RX256TO511OCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX512TO1023OCTETS_GB)) ++ stats->rx512to1023octets_gb += ++ xgbe_mmc_read(pdata, MMC_RX512TO1023OCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX1024TOMAXOCTETS_GB)) ++ stats->rx1024tomaxoctets_gb += ++ xgbe_mmc_read(pdata, MMC_RX1024TOMAXOCTETS_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXUNICASTFRAMES_G)) ++ stats->rxunicastframes_g += ++ xgbe_mmc_read(pdata, MMC_RXUNICASTFRAMES_G_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXLENGTHERROR)) ++ stats->rxlengtherror += ++ xgbe_mmc_read(pdata, MMC_RXLENGTHERROR_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOUTOFRANGETYPE)) ++ stats->rxoutofrangetype += ++ xgbe_mmc_read(pdata, MMC_RXOUTOFRANGETYPE_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXPAUSEFRAMES)) ++ stats->rxpauseframes += ++ xgbe_mmc_read(pdata, MMC_RXPAUSEFRAMES_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXFIFOOVERFLOW)) ++ stats->rxfifooverflow += ++ xgbe_mmc_read(pdata, MMC_RXFIFOOVERFLOW_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXVLANFRAMES_GB)) ++ stats->rxvlanframes_gb += ++ xgbe_mmc_read(pdata, MMC_RXVLANFRAMES_GB_LO); ++ ++ if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXWATCHDOGERROR)) ++ stats->rxwatchdogerror += ++ xgbe_mmc_read(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 += ++ xgbe_mmc_read(pdata, MMC_TXOCTETCOUNT_GB_LO); ++ ++ stats->txframecount_gb += ++ xgbe_mmc_read(pdata, MMC_TXFRAMECOUNT_GB_LO); ++ ++ stats->txbroadcastframes_g += ++ xgbe_mmc_read(pdata, MMC_TXBROADCASTFRAMES_G_LO); ++ ++ stats->txmulticastframes_g += ++ xgbe_mmc_read(pdata, MMC_TXMULTICASTFRAMES_G_LO); ++ ++ stats->tx64octets_gb += ++ xgbe_mmc_read(pdata, MMC_TX64OCTETS_GB_LO); ++ ++ stats->tx65to127octets_gb += ++ xgbe_mmc_read(pdata, MMC_TX65TO127OCTETS_GB_LO); ++ ++ stats->tx128to255octets_gb += ++ xgbe_mmc_read(pdata, MMC_TX128TO255OCTETS_GB_LO); ++ ++ stats->tx256to511octets_gb += ++ xgbe_mmc_read(pdata, MMC_TX256TO511OCTETS_GB_LO); ++ ++ stats->tx512to1023octets_gb += ++ xgbe_mmc_read(pdata, MMC_TX512TO1023OCTETS_GB_LO); ++ ++ stats->tx1024tomaxoctets_gb += ++ xgbe_mmc_read(pdata, MMC_TX1024TOMAXOCTETS_GB_LO); ++ ++ stats->txunicastframes_gb += ++ xgbe_mmc_read(pdata, MMC_TXUNICASTFRAMES_GB_LO); ++ ++ stats->txmulticastframes_gb += ++ xgbe_mmc_read(pdata, MMC_TXMULTICASTFRAMES_GB_LO); ++ ++ stats->txbroadcastframes_g += ++ xgbe_mmc_read(pdata, MMC_TXBROADCASTFRAMES_GB_LO); ++ ++ stats->txunderflowerror += ++ xgbe_mmc_read(pdata, MMC_TXUNDERFLOWERROR_LO); ++ ++ stats->txoctetcount_g += ++ xgbe_mmc_read(pdata, MMC_TXOCTETCOUNT_G_LO); ++ ++ stats->txframecount_g += ++ xgbe_mmc_read(pdata, MMC_TXFRAMECOUNT_G_LO); ++ ++ stats->txpauseframes += ++ xgbe_mmc_read(pdata, MMC_TXPAUSEFRAMES_LO); ++ ++ stats->txvlanframes_g += ++ xgbe_mmc_read(pdata, MMC_TXVLANFRAMES_G_LO); ++ ++ stats->rxframecount_gb += ++ xgbe_mmc_read(pdata, MMC_RXFRAMECOUNT_GB_LO); ++ ++ stats->rxoctetcount_gb += ++ xgbe_mmc_read(pdata, MMC_RXOCTETCOUNT_GB_LO); ++ ++ stats->rxoctetcount_g += ++ xgbe_mmc_read(pdata, MMC_RXOCTETCOUNT_G_LO); ++ ++ stats->rxbroadcastframes_g += ++ xgbe_mmc_read(pdata, MMC_RXBROADCASTFRAMES_G_LO); ++ ++ stats->rxmulticastframes_g += ++ xgbe_mmc_read(pdata, MMC_RXMULTICASTFRAMES_G_LO); ++ ++ stats->rxcrcerror += ++ xgbe_mmc_read(pdata, MMC_RXCRCERROR_LO); ++ ++ stats->rxrunterror += ++ xgbe_mmc_read(pdata, MMC_RXRUNTERROR); ++ ++ stats->rxjabbererror += ++ xgbe_mmc_read(pdata, MMC_RXJABBERERROR); ++ ++ stats->rxundersize_g += ++ xgbe_mmc_read(pdata, MMC_RXUNDERSIZE_G); ++ ++ stats->rxoversize_g += ++ xgbe_mmc_read(pdata, MMC_RXOVERSIZE_G); ++ ++ stats->rx64octets_gb += ++ xgbe_mmc_read(pdata, MMC_RX64OCTETS_GB_LO); ++ ++ stats->rx65to127octets_gb += ++ xgbe_mmc_read(pdata, MMC_RX65TO127OCTETS_GB_LO); ++ ++ stats->rx128to255octets_gb += ++ xgbe_mmc_read(pdata, MMC_RX128TO255OCTETS_GB_LO); ++ ++ stats->rx256to511octets_gb += ++ xgbe_mmc_read(pdata, MMC_RX256TO511OCTETS_GB_LO); ++ ++ stats->rx512to1023octets_gb += ++ xgbe_mmc_read(pdata, MMC_RX512TO1023OCTETS_GB_LO); ++ ++ stats->rx1024tomaxoctets_gb += ++ xgbe_mmc_read(pdata, MMC_RX1024TOMAXOCTETS_GB_LO); ++ ++ stats->rxunicastframes_g += ++ xgbe_mmc_read(pdata, MMC_RXUNICASTFRAMES_G_LO); ++ ++ stats->rxlengtherror += ++ xgbe_mmc_read(pdata, MMC_RXLENGTHERROR_LO); ++ ++ stats->rxoutofrangetype += ++ xgbe_mmc_read(pdata, MMC_RXOUTOFRANGETYPE_LO); ++ ++ stats->rxpauseframes += ++ xgbe_mmc_read(pdata, MMC_RXPAUSEFRAMES_LO); ++ ++ stats->rxfifooverflow += ++ xgbe_mmc_read(pdata, MMC_RXFIFOOVERFLOW_LO); ++ ++ stats->rxvlanframes_gb += ++ xgbe_mmc_read(pdata, MMC_RXVLANFRAMES_GB_LO); ++ ++ stats->rxwatchdogerror += ++ xgbe_mmc_read(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_prepare_tx_stop(struct xgbe_prv_data *pdata, ++ struct xgbe_channel *channel) ++{ ++ unsigned int tx_dsr, tx_pos, tx_qidx; ++ unsigned int tx_status; ++ unsigned long tx_timeout; ++ ++ /* Calculate the status register to read and the position within */ ++ if (channel->queue_index < DMA_DSRX_FIRST_QUEUE) { ++ tx_dsr = DMA_DSR0; ++ tx_pos = (channel->queue_index * DMA_DSR_Q_WIDTH) + ++ DMA_DSR0_TPS_START; ++ } else { ++ tx_qidx = channel->queue_index - DMA_DSRX_FIRST_QUEUE; ++ ++ tx_dsr = DMA_DSR1 + ((tx_qidx / DMA_DSRX_QPR) * DMA_DSRX_INC); ++ tx_pos = ((tx_qidx % DMA_DSRX_QPR) * DMA_DSR_Q_WIDTH) + ++ DMA_DSRX_TPS_START; ++ } ++ ++ /* The Tx engine cannot be stopped if it is actively processing ++ * descriptors. Wait for the Tx engine to enter the stopped or ++ * suspended state. Don't wait forever though... ++ */ ++ tx_timeout = jiffies + (XGBE_DMA_STOP_TIMEOUT * HZ); ++ while (time_before(jiffies, tx_timeout)) { ++ tx_status = XGMAC_IOREAD(pdata, tx_dsr); ++ tx_status = GET_BITS(tx_status, tx_pos, DMA_DSR_TPS_WIDTH); ++ if ((tx_status == DMA_TPS_STOPPED) || ++ (tx_status == DMA_TPS_SUSPENDED)) ++ break; ++ ++ usleep_range(500, 1000); ++ } ++ ++ if (!time_before(jiffies, tx_timeout)) ++ netdev_info(pdata->netdev, ++ "timed out waiting for Tx DMA channel %u to stop\n", ++ channel->queue_index); ++} ++ ++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->tx_q_count; 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; ++ ++ /* Prepare for Tx DMA channel stop */ ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) { ++ if (!channel->tx_ring) ++ break; ++ ++ xgbe_prepare_tx_stop(pdata, channel); ++ } ++ ++ /* Disable MAC Tx */ ++ XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 0); ++ ++ /* Disable each Tx queue */ ++ for (i = 0; i < pdata->tx_q_count; 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->rx_q_count; 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; ++ ++ /* Prepare for Tx DMA channel stop */ ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) { ++ if (!channel->tx_ring) ++ break; ++ ++ xgbe_prepare_tx_stop(pdata, channel); ++ } ++ ++ /* 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); ++ xgbe_config_sph_mode(pdata); ++ xgbe_config_rss(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_queue_mapping(pdata); ++ 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: Error Packet and undersized good Packet forwarding enable ++ (FEP and FUP) ++ */ ++ xgbe_config_dcb_tc(pdata); ++ xgbe_config_dcb_pfc(pdata); ++ xgbe_enable_mtl_interrupts(pdata); ++ ++ /* ++ * Initialize MAC related features ++ */ ++ xgbe_config_mac_address(pdata); ++ xgbe_config_jumbo_enable(pdata); ++ xgbe_config_flow_control(pdata); ++ xgbe_config_mac_speed(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_a0_init_function_ptrs_dev(struct xgbe_hw_if *hw_if) ++{ ++ DBGPR("-->xgbe_a0_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->add_mac_addresses = xgbe_add_mac_addresses; ++ 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->enable_rx_vlan_filtering = xgbe_enable_rx_vlan_filtering; ++ hw_if->disable_rx_vlan_filtering = xgbe_disable_rx_vlan_filtering; ++ hw_if->update_vlan_hash_table = xgbe_update_vlan_hash_table; ++ ++ 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->dev_xmit = xgbe_dev_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; ++ hw_if->tx_start_xmit = xgbe_tx_start_xmit; ++ ++ /* 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; ++ ++ /* For PTP config */ ++ hw_if->config_tstamp = xgbe_config_tstamp; ++ hw_if->update_tstamp_addend = xgbe_update_tstamp_addend; ++ hw_if->set_tstamp_time = xgbe_set_tstamp_time; ++ hw_if->get_tstamp_time = xgbe_get_tstamp_time; ++ hw_if->get_tx_tstamp = xgbe_get_tx_tstamp; ++ ++ /* For Data Center Bridging config */ ++ hw_if->config_dcb_tc = xgbe_config_dcb_tc; ++ hw_if->config_dcb_pfc = xgbe_config_dcb_pfc; ++ ++ /* For Receive Side Scaling */ ++ hw_if->enable_rss = xgbe_enable_rss; ++ hw_if->disable_rss = xgbe_disable_rss; ++ hw_if->set_rss_hash_key = xgbe_set_rss_hash_key; ++ hw_if->set_rss_lookup_table = xgbe_set_rss_lookup_table; ++ ++ DBGPR("<--xgbe_a0_init_function_ptrs\n"); ++} +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe-a0/xgbe-drv.c +new file mode 100644 +index 000000000000..ca4af9e508b8 +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe-drv.c +@@ -0,0 +1,2218 @@ ++/* ++ * 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/platform_device.h> ++#include <linux/spinlock.h> ++#include <linux/tcp.h> ++#include <linux/if_vlan.h> ++#include <net/busy_poll.h> ++#include <linux/clk.h> ++#include <linux/if_ether.h> ++#include <linux/net_tstamp.h> ++#include <linux/phy.h> ++ ++#include "xgbe.h" ++#include "xgbe-common.h" ++ ++static int xgbe_one_poll(struct napi_struct *, int); ++static int xgbe_all_poll(struct napi_struct *, int); ++static void xgbe_set_rx_mode(struct net_device *); ++ ++static int xgbe_alloc_channels(struct xgbe_prv_data *pdata) ++{ ++ struct xgbe_channel *channel_mem, *channel; ++ struct xgbe_ring *tx_ring, *rx_ring; ++ unsigned int count, i; ++ int ret = -ENOMEM; ++ ++ count = max_t(unsigned int, pdata->tx_ring_count, pdata->rx_ring_count); ++ ++ channel_mem = kcalloc(count, sizeof(struct xgbe_channel), GFP_KERNEL); ++ if (!channel_mem) ++ goto err_channel; ++ ++ tx_ring = kcalloc(pdata->tx_ring_count, sizeof(struct xgbe_ring), ++ GFP_KERNEL); ++ if (!tx_ring) ++ goto err_tx_ring; ++ ++ rx_ring = kcalloc(pdata->rx_ring_count, sizeof(struct xgbe_ring), ++ GFP_KERNEL); ++ if (!rx_ring) ++ goto err_rx_ring; ++ ++ 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 (pdata->per_channel_irq) { ++ /* Get the DMA interrupt (offset 1) */ ++ ret = platform_get_irq(pdata->pdev, i + 1); ++ if (ret < 0) { ++ netdev_err(pdata->netdev, ++ "platform_get_irq %u failed\n", ++ i + 1); ++ goto err_irq; ++ } ++ ++ channel->dma_irq = ret; ++ } ++ ++ 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(&rx_ring->lock); ++ channel->rx_ring = rx_ring++; ++ } ++ ++ DBGPR(" %s: queue=%u, dma_regs=%p, dma_irq=%d, tx=%p, rx=%p\n", ++ channel->name, channel->queue_index, channel->dma_regs, ++ channel->dma_irq, channel->tx_ring, channel->rx_ring); ++ } ++ ++ pdata->channel = channel_mem; ++ pdata->channel_count = count; ++ ++ return 0; ++ ++err_irq: ++ kfree(rx_ring); ++ ++err_rx_ring: ++ kfree(tx_ring); ++ ++err_tx_ring: ++ kfree(channel_mem); ++ ++err_channel: ++ return ret; ++} ++ ++static void xgbe_free_channels(struct xgbe_prv_data *pdata) ++{ ++ if (!pdata->channel) ++ return; ++ ++ kfree(pdata->channel->rx_ring); ++ kfree(pdata->channel->tx_ring); ++ kfree(pdata->channel); ++ ++ pdata->channel = NULL; ++ pdata->channel_count = 0; ++} ++ ++static inline unsigned int xgbe_tx_avail_desc(struct xgbe_ring *ring) ++{ ++ return (ring->rdesc_count - (ring->cur - ring->dirty)); ++} ++ ++static inline unsigned int xgbe_rx_dirty_desc(struct xgbe_ring *ring) ++{ ++ return (ring->cur - ring->dirty); ++} ++ ++static int xgbe_maybe_stop_tx_queue(struct xgbe_channel *channel, ++ struct xgbe_ring *ring, unsigned int count) ++{ ++ struct xgbe_prv_data *pdata = channel->pdata; ++ ++ if (count > xgbe_tx_avail_desc(ring)) { ++ DBGPR(" Tx queue stopped, not enough descriptors available\n"); ++ netif_stop_subqueue(pdata->netdev, channel->queue_index); ++ ring->tx.queue_stopped = 1; ++ ++ /* If we haven't notified the hardware because of xmit_more ++ * support, tell it now ++ */ ++ if (ring->tx.xmit_more) ++ pdata->hw_if.tx_start_xmit(channel, ring); ++ ++ return NETDEV_TX_BUSY; ++ } ++ ++ return 0; ++} ++ ++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; ++ rx_buf_size = clamp_val(rx_buf_size, XGBE_RX_MIN_BUF_SIZE, PAGE_SIZE); ++ ++ rx_buf_size = (rx_buf_size + XGBE_RX_BUF_ALIGN - 1) & ++ ~(XGBE_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; ++ enum xgbe_int int_id; ++ unsigned int i; ++ ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) { ++ if (channel->tx_ring && channel->rx_ring) ++ int_id = XGMAC_INT_DMA_CH_SR_TI_RI; ++ else if (channel->tx_ring) ++ int_id = XGMAC_INT_DMA_CH_SR_TI; ++ else if (channel->rx_ring) ++ int_id = XGMAC_INT_DMA_CH_SR_RI; ++ else ++ continue; ++ ++ hw_if->enable_int(channel, int_id); ++ } ++} ++ ++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; ++ enum xgbe_int int_id; ++ unsigned int i; ++ ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) { ++ if (channel->tx_ring && channel->rx_ring) ++ int_id = XGMAC_INT_DMA_CH_SR_TI_RI; ++ else if (channel->tx_ring) ++ int_id = XGMAC_INT_DMA_CH_SR_TI; ++ else if (channel->rx_ring) ++ int_id = XGMAC_INT_DMA_CH_SR_RI; ++ else ++ continue; ++ ++ hw_if->disable_int(channel, int_id); ++ } ++} ++ ++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, mac_tssr; ++ 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(" DMA_ISR = %08x\n", dma_isr); ++ ++ 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); ++ ++ /* The TI or RI interrupt bits may still be set even if using ++ * per channel DMA interrupts. Check to be sure those are not ++ * enabled before using the private data napi structure. ++ */ ++ if (!pdata->per_channel_irq && ++ (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); ++ ++ if (XGMAC_GET_BITS(mac_isr, MAC_ISR, TSIS)) { ++ mac_tssr = XGMAC_IOREAD(pdata, MAC_TSSR); ++ ++ if (XGMAC_GET_BITS(mac_tssr, MAC_TSSR, TXTSC)) { ++ /* Read Tx Timestamp to clear interrupt */ ++ pdata->tx_tstamp = ++ hw_if->get_tx_tstamp(pdata); ++ schedule_work(&pdata->tx_tstamp_work); ++ } ++ } ++ } ++ ++ DBGPR(" DMA_ISR = %08x\n", XGMAC_IOREAD(pdata, DMA_ISR)); ++ ++isr_done: ++ return IRQ_HANDLED; ++} ++ ++static irqreturn_t xgbe_dma_isr(int irq, void *data) ++{ ++ struct xgbe_channel *channel = data; ++ ++ /* Per channel DMA interrupts are enabled, so we use the per ++ * channel napi structure and not the private data napi structure ++ */ ++ if (napi_schedule_prep(&channel->napi)) { ++ /* Disable Tx and Rx interrupts */ ++ disable_irq_nosync(channel->dma_irq); ++ ++ /* Turn on polling */ ++ __napi_schedule(&channel->napi); ++ } ++ ++ 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_prv_data *pdata = channel->pdata; ++ struct napi_struct *napi; ++ ++ DBGPR("-->xgbe_tx_timer\n"); ++ ++ napi = (pdata->per_channel_irq) ? &channel->napi : &pdata->napi; ++ ++ if (napi_schedule_prep(napi)) { ++ /* Disable Tx and Rx interrupts */ ++ if (pdata->per_channel_irq) ++ disable_irq(channel->dma_irq); ++ else ++ xgbe_disable_rx_tx_ints(pdata); ++ ++ /* Turn on polling */ ++ __napi_schedule(napi); ++ } ++ ++ channel->tx_timer_active = 0; ++ ++ 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_a0_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_a0_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)); ++ ++ hw_feat->version = XGMAC_IOREAD(pdata, MAC_VR); ++ ++ /* 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->rss = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, RSSEN); ++ hw_feat->tc_cnt = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, NUMTC); ++ 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); ++ ++ /* Translate the Hash Table size into actual number */ ++ switch (hw_feat->hash_table_size) { ++ case 0: ++ break; ++ case 1: ++ hw_feat->hash_table_size = 64; ++ break; ++ case 2: ++ hw_feat->hash_table_size = 128; ++ break; ++ case 3: ++ hw_feat->hash_table_size = 256; ++ break; ++ } ++ ++ /* The Queue, Channel and TC 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++; ++ hw_feat->tc_cnt++; ++ ++#define XGBE_TC_CNT 2 ++ hw_feat->tc_cnt = XGBE_TC_CNT; ++ ++ DBGPR("<--xgbe_a0_get_all_hw_features\n"); ++} ++ ++static void xgbe_napi_enable(struct xgbe_prv_data *pdata, unsigned int add) ++{ ++ struct xgbe_channel *channel; ++ unsigned int i; ++ ++ if (pdata->per_channel_irq) { ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) { ++ if (add) ++ netif_napi_add(pdata->netdev, &channel->napi, ++ xgbe_one_poll, NAPI_POLL_WEIGHT); ++ ++ napi_enable(&channel->napi); ++ } ++ } else { ++ if (add) ++ netif_napi_add(pdata->netdev, &pdata->napi, ++ xgbe_all_poll, NAPI_POLL_WEIGHT); ++ ++ napi_enable(&pdata->napi); ++ } ++} ++ ++static void xgbe_napi_disable(struct xgbe_prv_data *pdata, unsigned int del) ++{ ++ struct xgbe_channel *channel; ++ unsigned int i; ++ ++ if (pdata->per_channel_irq) { ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) { ++ napi_disable(&channel->napi); ++ ++ if (del) ++ netif_napi_del(&channel->napi); ++ } ++ } else { ++ napi_disable(&pdata->napi); ++ ++ if (del) ++ netif_napi_del(&pdata->napi); ++ } ++} ++ ++static int xgbe_request_irqs(struct xgbe_prv_data *pdata) ++{ ++ struct xgbe_channel *channel; ++ struct net_device *netdev = pdata->netdev; ++ unsigned int i; ++ int ret; ++ ++ ret = devm_request_irq(pdata->dev, pdata->dev_irq, xgbe_isr, 0, ++ netdev->name, pdata); ++ if (ret) { ++ netdev_alert(netdev, "error requesting irq %d\n", ++ pdata->dev_irq); ++ return ret; ++ } ++ ++ if (!pdata->per_channel_irq) ++ return 0; ++ ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) { ++ snprintf(channel->dma_irq_name, ++ sizeof(channel->dma_irq_name) - 1, ++ "%s-TxRx-%u", netdev_name(netdev), ++ channel->queue_index); ++ ++ ret = devm_request_irq(pdata->dev, channel->dma_irq, ++ xgbe_dma_isr, 0, ++ channel->dma_irq_name, channel); ++ if (ret) { ++ netdev_alert(netdev, "error requesting irq %d\n", ++ channel->dma_irq); ++ goto err_irq; ++ } ++ } ++ ++ return 0; ++ ++err_irq: ++ /* Using an unsigned int, 'i' will go to UINT_MAX and exit */ ++ for (i--, channel--; i < pdata->channel_count; i--, channel--) ++ devm_free_irq(pdata->dev, channel->dma_irq, channel); ++ ++ devm_free_irq(pdata->dev, pdata->dev_irq, pdata); ++ ++ return ret; ++} ++ ++static void xgbe_free_irqs(struct xgbe_prv_data *pdata) ++{ ++ struct xgbe_channel *channel; ++ unsigned int i; ++ ++ devm_free_irq(pdata->dev, pdata->dev_irq, pdata); ++ ++ if (!pdata->per_channel_irq) ++ return; ++ ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) ++ devm_free_irq(pdata->dev, channel->dma_irq, channel); ++} ++ ++void xgbe_a0_init_tx_coalesce(struct xgbe_prv_data *pdata) ++{ ++ struct xgbe_hw_if *hw_if = &pdata->hw_if; ++ ++ DBGPR("-->xgbe_a0_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_a0_init_tx_coalesce\n"); ++} ++ ++void xgbe_a0_init_rx_coalesce(struct xgbe_prv_data *pdata) ++{ ++ struct xgbe_hw_if *hw_if = &pdata->hw_if; ++ ++ DBGPR("-->xgbe_a0_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_a0_init_rx_coalesce\n"); ++} ++ ++static void xgbe_free_tx_data(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_data\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 = XGBE_GET_DESC_DATA(ring, j); ++ desc_if->unmap_rdata(pdata, rdata); ++ } ++ } ++ ++ DBGPR("<--xgbe_free_tx_data\n"); ++} ++ ++static void xgbe_free_rx_data(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_data\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 = XGBE_GET_DESC_DATA(ring, j); ++ desc_if->unmap_rdata(pdata, rdata); ++ } ++ } ++ ++ DBGPR("<--xgbe_free_rx_data\n"); ++} ++ ++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; ++ int new_state = 0; ++ ++ if (!phydev) ++ return; ++ ++ 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); ++} ++ ++static int xgbe_phy_init(struct xgbe_prv_data *pdata) ++{ ++ struct net_device *netdev = pdata->netdev; ++ struct phy_device *phydev = pdata->phydev; ++ int ret; ++ ++ 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"); ++ return ret; ++ } ++ ++ if (!phydev->drv || (phydev->drv->phy_id == 0)) { ++ netdev_err(netdev, "phy_id not valid\n"); ++ ret = -ENODEV; ++ goto err_phy_connect; ++ } ++ DBGPR(" phy_connect_direct succeeded for PHY %s, link=%d\n", ++ dev_name(&phydev->dev), phydev->link); ++ ++ return 0; ++ ++err_phy_connect: ++ phy_disconnect(phydev); ++ ++ return ret; ++} ++ ++static void xgbe_phy_exit(struct xgbe_prv_data *pdata) ++{ ++ if (!pdata->phydev) ++ return; ++ ++ phy_disconnect(pdata->phydev); ++} ++ ++int xgbe_a0_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_a0_powerdown\n"); ++ ++ if (!netif_running(netdev) || ++ (caller == XGMAC_IOCTL_CONTEXT && pdata->power_down)) { ++ netdev_alert(netdev, "Device is already powered down\n"); ++ DBGPR("<--xgbe_a0_powerdown\n"); ++ return -EINVAL; ++ } ++ ++ spin_lock_irqsave(&pdata->lock, flags); ++ ++ if (caller == XGMAC_DRIVER_CONTEXT) ++ netif_device_detach(netdev); ++ ++ netif_tx_stop_all_queues(netdev); ++ ++ hw_if->powerdown_tx(pdata); ++ hw_if->powerdown_rx(pdata); ++ ++ xgbe_napi_disable(pdata, 0); ++ ++ phy_stop(pdata->phydev); ++ ++ pdata->power_down = 1; ++ ++ spin_unlock_irqrestore(&pdata->lock, flags); ++ ++ DBGPR("<--xgbe_a0_powerdown\n"); ++ ++ return 0; ++} ++ ++int xgbe_a0_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_a0_powerup\n"); ++ ++ if (!netif_running(netdev) || ++ (caller == XGMAC_IOCTL_CONTEXT && !pdata->power_down)) { ++ netdev_alert(netdev, "Device is already powered up\n"); ++ DBGPR("<--xgbe_a0_powerup\n"); ++ return -EINVAL; ++ } ++ ++ spin_lock_irqsave(&pdata->lock, flags); ++ ++ pdata->power_down = 0; ++ ++ phy_start(pdata->phydev); ++ ++ xgbe_napi_enable(pdata, 0); ++ ++ hw_if->powerup_tx(pdata); ++ hw_if->powerup_rx(pdata); ++ ++ if (caller == XGMAC_DRIVER_CONTEXT) ++ netif_device_attach(netdev); ++ ++ netif_tx_start_all_queues(netdev); ++ ++ spin_unlock_irqrestore(&pdata->lock, flags); ++ ++ DBGPR("<--xgbe_a0_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; ++ int ret; ++ ++ DBGPR("-->xgbe_start\n"); ++ ++ xgbe_set_rx_mode(netdev); ++ ++ hw_if->init(pdata); ++ ++ phy_start(pdata->phydev); ++ ++ xgbe_napi_enable(pdata, 1); ++ ++ ret = xgbe_request_irqs(pdata); ++ if (ret) ++ goto err_napi; ++ ++ hw_if->enable_tx(pdata); ++ hw_if->enable_rx(pdata); ++ ++ xgbe_init_tx_timers(pdata); ++ ++ netif_tx_start_all_queues(netdev); ++ ++ DBGPR("<--xgbe_start\n"); ++ ++ return 0; ++ ++err_napi: ++ xgbe_napi_disable(pdata, 1); ++ ++ phy_stop(pdata->phydev); ++ ++ hw_if->exit(pdata); ++ ++ return ret; ++} ++ ++static void xgbe_stop(struct xgbe_prv_data *pdata) ++{ ++ struct xgbe_hw_if *hw_if = &pdata->hw_if; ++ struct xgbe_channel *channel; ++ struct net_device *netdev = pdata->netdev; ++ struct netdev_queue *txq; ++ unsigned int i; ++ ++ DBGPR("-->xgbe_stop\n"); ++ ++ netif_tx_stop_all_queues(netdev); ++ ++ xgbe_stop_tx_timers(pdata); ++ ++ hw_if->disable_tx(pdata); ++ hw_if->disable_rx(pdata); ++ ++ xgbe_free_irqs(pdata); ++ ++ xgbe_napi_disable(pdata, 1); ++ ++ phy_stop(pdata->phydev); ++ ++ hw_if->exit(pdata); ++ ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) { ++ if (!channel->tx_ring) ++ continue; ++ ++ txq = netdev_get_tx_queue(netdev, channel->queue_index); ++ netdev_tx_reset_queue(txq); ++ } ++ ++ DBGPR("<--xgbe_stop\n"); ++} ++ ++static void xgbe_restart_dev(struct xgbe_prv_data *pdata) ++{ ++ DBGPR("-->xgbe_restart_dev\n"); ++ ++ /* If not running, "restart" will happen on open */ ++ if (!netif_running(pdata->netdev)) ++ return; ++ ++ xgbe_stop(pdata); ++ ++ xgbe_free_tx_data(pdata); ++ xgbe_free_rx_data(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); ++ ++ rtnl_unlock(); ++} ++ ++static void xgbe_tx_tstamp(struct work_struct *work) ++{ ++ struct xgbe_prv_data *pdata = container_of(work, ++ struct xgbe_prv_data, ++ tx_tstamp_work); ++ struct skb_shared_hwtstamps hwtstamps; ++ u64 nsec; ++ unsigned long flags; ++ ++ if (pdata->tx_tstamp) { ++ nsec = timecounter_cyc2time(&pdata->tstamp_tc, ++ pdata->tx_tstamp); ++ ++ memset(&hwtstamps, 0, sizeof(hwtstamps)); ++ hwtstamps.hwtstamp = ns_to_ktime(nsec); ++ skb_tstamp_tx(pdata->tx_tstamp_skb, &hwtstamps); ++ } ++ ++ dev_kfree_skb_any(pdata->tx_tstamp_skb); ++ ++ spin_lock_irqsave(&pdata->tstamp_lock, flags); ++ pdata->tx_tstamp_skb = NULL; ++ spin_unlock_irqrestore(&pdata->tstamp_lock, flags); ++} ++ ++static int xgbe_get_hwtstamp_settings(struct xgbe_prv_data *pdata, ++ struct ifreq *ifreq) ++{ ++ if (copy_to_user(ifreq->ifr_data, &pdata->tstamp_config, ++ sizeof(pdata->tstamp_config))) ++ return -EFAULT; ++ ++ return 0; ++} ++ ++static int xgbe_set_hwtstamp_settings(struct xgbe_prv_data *pdata, ++ struct ifreq *ifreq) ++{ ++ struct hwtstamp_config config; ++ unsigned int mac_tscr; ++ ++ if (copy_from_user(&config, ifreq->ifr_data, sizeof(config))) ++ return -EFAULT; ++ ++ if (config.flags) ++ return -EINVAL; ++ ++ mac_tscr = 0; ++ ++ switch (config.tx_type) { ++ case HWTSTAMP_TX_OFF: ++ break; ++ ++ case HWTSTAMP_TX_ON: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ default: ++ return -ERANGE; ++ } ++ ++ switch (config.rx_filter) { ++ case HWTSTAMP_FILTER_NONE: ++ break; ++ ++ case HWTSTAMP_FILTER_ALL: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENALL, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ /* PTP v2, UDP, any kind of event packet */ ++ case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); ++ /* PTP v1, UDP, any kind of event packet */ ++ case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, SNAPTYPSEL, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ /* PTP v2, UDP, Sync packet */ ++ case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); ++ /* PTP v1, UDP, Sync packet */ ++ case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ /* PTP v2, UDP, Delay_req packet */ ++ case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); ++ /* PTP v1, UDP, Delay_req packet */ ++ case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSMSTRENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ /* 802.AS1, Ethernet, any kind of event packet */ ++ case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, AV8021ASMEN, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, SNAPTYPSEL, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ /* 802.AS1, Ethernet, Sync packet */ ++ case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, AV8021ASMEN, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ /* 802.AS1, Ethernet, Delay_req packet */ ++ case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, AV8021ASMEN, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSMSTRENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ /* PTP v2/802.AS1, any layer, any kind of event packet */ ++ case HWTSTAMP_FILTER_PTP_V2_EVENT: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, SNAPTYPSEL, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ /* PTP v2/802.AS1, any layer, Sync packet */ ++ case HWTSTAMP_FILTER_PTP_V2_SYNC: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ /* PTP v2/802.AS1, any layer, Delay_req packet */ ++ case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSMSTRENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); ++ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); ++ break; ++ ++ default: ++ return -ERANGE; ++ } ++ ++ pdata->hw_if.config_tstamp(pdata, mac_tscr); ++ ++ memcpy(&pdata->tstamp_config, &config, sizeof(config)); ++ ++ return 0; ++} ++ ++static void xgbe_prep_tx_tstamp(struct xgbe_prv_data *pdata, ++ struct sk_buff *skb, ++ struct xgbe_packet_data *packet) ++{ ++ unsigned long flags; ++ ++ if (XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, PTP)) { ++ spin_lock_irqsave(&pdata->tstamp_lock, flags); ++ if (pdata->tx_tstamp_skb) { ++ /* Another timestamp in progress, ignore this one */ ++ XGMAC_SET_BITS(packet->attributes, ++ TX_PACKET_ATTRIBUTES, PTP, 0); ++ } else { ++ pdata->tx_tstamp_skb = skb_get(skb); ++ skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; ++ } ++ spin_unlock_irqrestore(&pdata->tstamp_lock, flags); ++ } ++ ++ if (!XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, PTP)) ++ skb_tx_timestamp(skb); ++} ++ ++static void xgbe_prep_vlan(struct sk_buff *skb, struct xgbe_packet_data *packet) ++{ ++ if (skb_vlan_tag_present(skb)) ++ packet->vlan_ctag = skb_vlan_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); ++ ++ /* Update the number of packets that will ultimately be transmitted ++ * along with the extra bytes for each extra packet ++ */ ++ packet->tx_packets = skb_shinfo(skb)->gso_segs; ++ packet->tx_bytes += (packet->tx_packets - 1) * packet->header_len; ++ ++ 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_prv_data *pdata, ++ 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; ++ ++ packet->skb = skb; ++ ++ context_desc = 0; ++ packet->rdesc_count = 0; ++ ++ packet->tx_packets = 1; ++ packet->tx_bytes = skb->len; ++ ++ if (xgbe_is_tso(skb)) { ++ /* TSO requires an extra descriptor if mss is different */ ++ if (skb_shinfo(skb)->gso_size != ring->tx.cur_mss) { ++ context_desc = 1; ++ packet->rdesc_count++; ++ } ++ ++ /* TSO requires an extra descriptor 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 (skb_vlan_tag_present(skb)) { ++ /* VLAN requires an extra descriptor if tag is different */ ++ if (skb_vlan_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); ++ } ++ ++ if ((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && ++ (pdata->tstamp_config.tx_type == HWTSTAMP_TX_ON)) ++ XGMAC_SET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, ++ PTP, 1); ++ ++ for (len = skb_headlen(skb); len;) { ++ packet->rdesc_count++; ++ len -= min_t(unsigned int, len, XGBE_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, XGBE_TX_MAX_BUF_SIZE); ++ } ++ } ++} ++ ++static int xgbe_open(struct net_device *netdev) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ struct xgbe_desc_if *desc_if = &pdata->desc_if; ++ int ret; ++ ++ DBGPR("-->xgbe_open\n"); ++ ++ /* Initialize the phy */ ++ ret = xgbe_phy_init(pdata); ++ if (ret) ++ return ret; ++ ++ /* Enable the clocks */ ++ ret = clk_prepare_enable(pdata->sysclk); ++ if (ret) { ++ netdev_alert(netdev, "dma clk_prepare_enable failed\n"); ++ goto err_phy_init; ++ } ++ ++ ret = clk_prepare_enable(pdata->ptpclk); ++ if (ret) { ++ netdev_alert(netdev, "ptp clk_prepare_enable failed\n"); ++ goto err_sysclk; ++ } ++ ++ /* Calculate the Rx buffer size before allocating rings */ ++ ret = xgbe_calc_rx_buf_size(netdev, netdev->mtu); ++ if (ret < 0) ++ goto err_ptpclk; ++ pdata->rx_buf_size = ret; ++ ++ /* Allocate the channel and ring structures */ ++ ret = xgbe_alloc_channels(pdata); ++ if (ret) ++ goto err_ptpclk; ++ ++ /* Allocate the ring descriptors and buffers */ ++ ret = desc_if->alloc_ring_resources(pdata); ++ if (ret) ++ goto err_channels; ++ ++ /* Initialize the device restart and Tx timestamp work struct */ ++ INIT_WORK(&pdata->restart_work, xgbe_restart); ++ INIT_WORK(&pdata->tx_tstamp_work, xgbe_tx_tstamp); ++ ++ ret = xgbe_start(pdata); ++ if (ret) ++ goto err_rings; ++ ++ DBGPR("<--xgbe_open\n"); ++ ++ return 0; ++ ++err_rings: ++ desc_if->free_ring_resources(pdata); ++ ++err_channels: ++ xgbe_free_channels(pdata); ++ ++err_ptpclk: ++ clk_disable_unprepare(pdata->ptpclk); ++ ++err_sysclk: ++ clk_disable_unprepare(pdata->sysclk); ++ ++err_phy_init: ++ xgbe_phy_exit(pdata); ++ ++ return ret; ++} ++ ++static int xgbe_close(struct net_device *netdev) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ struct xgbe_desc_if *desc_if = &pdata->desc_if; ++ ++ DBGPR("-->xgbe_close\n"); ++ ++ /* Stop the device */ ++ xgbe_stop(pdata); ++ ++ /* Free the ring descriptors and buffers */ ++ desc_if->free_ring_resources(pdata); ++ ++ /* Free the channel and ring structures */ ++ xgbe_free_channels(pdata); ++ ++ /* Disable the clocks */ ++ clk_disable_unprepare(pdata->ptpclk); ++ clk_disable_unprepare(pdata->sysclk); ++ ++ /* Release the phy */ ++ xgbe_phy_exit(pdata); ++ ++ 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; ++ struct netdev_queue *txq; ++ int ret; ++ ++ DBGPR("-->xgbe_xmit: skb->len = %d\n", skb->len); ++ ++ channel = pdata->channel + skb->queue_mapping; ++ txq = netdev_get_tx_queue(netdev, channel->queue_index); ++ ring = channel->tx_ring; ++ packet = &ring->packet_data; ++ ++ ret = NETDEV_TX_OK; ++ ++ 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(pdata, ring, skb, packet); ++ ++ /* Check that there are enough descriptors available */ ++ ret = xgbe_maybe_stop_tx_queue(channel, ring, packet->rdesc_count); ++ if (ret) ++ 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; ++ } ++ ++ xgbe_prep_tx_tstamp(pdata, skb, packet); ++ ++ /* Report on the actual number of bytes (to be) sent */ ++ netdev_tx_sent_queue(txq, packet->tx_bytes); ++ ++ /* Configure required descriptor fields for transmission */ ++ hw_if->dev_xmit(channel); ++ ++#ifdef XGMAC_ENABLE_TX_PKT_DUMP ++ xgbe_a0_print_pkt(netdev, skb, true); ++#endif ++ ++ /* Stop the queue in advance if there may not be enough descriptors */ ++ xgbe_maybe_stop_tx_queue(channel, ring, XGBE_TX_MAX_DESCS); ++ ++ ret = NETDEV_TX_OK; ++ ++tx_netdev_return: ++ 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); ++ ++ hw_if->set_promiscuous_mode(pdata, pr_mode); ++ hw_if->set_all_multicast_mode(pdata, am_mode); ++ ++ hw_if->add_mac_addresses(pdata); ++ ++ 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_ioctl(struct net_device *netdev, struct ifreq *ifreq, int cmd) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ int ret; ++ ++ switch (cmd) { ++ case SIOCGHWTSTAMP: ++ ret = xgbe_get_hwtstamp_settings(pdata, ifreq); ++ break; ++ ++ case SIOCSHWTSTAMP: ++ ret = xgbe_set_hwtstamp_settings(pdata, ifreq); ++ break; ++ ++ default: ++ ret = -EOPNOTSUPP; ++ } ++ ++ return ret; ++} ++ ++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); ++ ++ 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; ++} ++ ++static int xgbe_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, ++ u16 vid) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ struct xgbe_hw_if *hw_if = &pdata->hw_if; ++ ++ DBGPR("-->%s\n", __func__); ++ ++ set_bit(vid, pdata->active_vlans); ++ hw_if->update_vlan_hash_table(pdata); ++ ++ DBGPR("<--%s\n", __func__); ++ ++ return 0; ++} ++ ++static int xgbe_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, ++ u16 vid) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ struct xgbe_hw_if *hw_if = &pdata->hw_if; ++ ++ DBGPR("-->%s\n", __func__); ++ ++ clear_bit(vid, pdata->active_vlans); ++ hw_if->update_vlan_hash_table(pdata); ++ ++ DBGPR("<--%s\n", __func__); ++ ++ return 0; ++} ++ ++#ifdef CONFIG_NET_POLL_CONTROLLER ++static void xgbe_poll_controller(struct net_device *netdev) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ struct xgbe_channel *channel; ++ unsigned int i; ++ ++ DBGPR("-->xgbe_poll_controller\n"); ++ ++ if (pdata->per_channel_irq) { ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) ++ xgbe_dma_isr(channel->dma_irq, channel); ++ } else { ++ disable_irq(pdata->dev_irq); ++ xgbe_isr(pdata->dev_irq, pdata); ++ enable_irq(pdata->dev_irq); ++ } ++ ++ DBGPR("<--xgbe_poll_controller\n"); ++} ++#endif /* End CONFIG_NET_POLL_CONTROLLER */ ++ ++static int xgbe_setup_tc(struct net_device *netdev, u8 tc) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ unsigned int offset, queue; ++ u8 i; ++ ++ if (tc && (tc != pdata->hw_feat.tc_cnt)) ++ return -EINVAL; ++ ++ if (tc) { ++ netdev_set_num_tc(netdev, tc); ++ for (i = 0, queue = 0, offset = 0; i < tc; i++) { ++ while ((queue < pdata->tx_q_count) && ++ (pdata->q2tc_map[queue] == i)) ++ queue++; ++ ++ DBGPR(" TC%u using TXq%u-%u\n", i, offset, queue - 1); ++ netdev_set_tc_queue(netdev, i, queue - offset, offset); ++ offset = queue; ++ } ++ } else { ++ netdev_reset_tc(netdev); ++ } ++ ++ return 0; ++} ++ ++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; ++ netdev_features_t rxhash, rxcsum, rxvlan, rxvlan_filter; ++ int ret = 0; ++ ++ rxhash = pdata->netdev_features & NETIF_F_RXHASH; ++ rxcsum = pdata->netdev_features & NETIF_F_RXCSUM; ++ rxvlan = pdata->netdev_features & NETIF_F_HW_VLAN_CTAG_RX; ++ rxvlan_filter = pdata->netdev_features & NETIF_F_HW_VLAN_CTAG_FILTER; ++ ++ if ((features & NETIF_F_RXHASH) && !rxhash) ++ ret = hw_if->enable_rss(pdata); ++ else if (!(features & NETIF_F_RXHASH) && rxhash) ++ ret = hw_if->disable_rss(pdata); ++ if (ret) ++ return ret; ++ ++ if ((features & NETIF_F_RXCSUM) && !rxcsum) ++ hw_if->enable_rx_csum(pdata); ++ else if (!(features & NETIF_F_RXCSUM) && rxcsum) ++ hw_if->disable_rx_csum(pdata); ++ ++ if ((features & NETIF_F_HW_VLAN_CTAG_RX) && !rxvlan) ++ hw_if->enable_rx_vlan_stripping(pdata); ++ else if (!(features & NETIF_F_HW_VLAN_CTAG_RX) && rxvlan) ++ hw_if->disable_rx_vlan_stripping(pdata); ++ ++ if ((features & NETIF_F_HW_VLAN_CTAG_FILTER) && !rxvlan_filter) ++ hw_if->enable_rx_vlan_filtering(pdata); ++ else if (!(features & NETIF_F_HW_VLAN_CTAG_FILTER) && rxvlan_filter) ++ hw_if->disable_rx_vlan_filtering(pdata); ++ ++ 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_do_ioctl = xgbe_ioctl, ++ .ndo_change_mtu = xgbe_change_mtu, ++ .ndo_get_stats64 = xgbe_get_stats64, ++ .ndo_vlan_rx_add_vid = xgbe_vlan_rx_add_vid, ++ .ndo_vlan_rx_kill_vid = xgbe_vlan_rx_kill_vid, ++#ifdef CONFIG_NET_POLL_CONTROLLER ++ .ndo_poll_controller = xgbe_poll_controller, ++#endif ++ .ndo_setup_tc = xgbe_setup_tc, ++ .ndo_set_features = xgbe_set_features, ++}; ++ ++struct net_device_ops *xgbe_a0_get_netdev_ops(void) ++{ ++ return (struct net_device_ops *)&xgbe_netdev_ops; ++} ++ ++static void xgbe_rx_refresh(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->rx_ring; ++ struct xgbe_ring_data *rdata; ++ ++ while (ring->dirty != ring->cur) { ++ rdata = XGBE_GET_DESC_DATA(ring, ring->dirty); ++ ++ /* Reset rdata values */ ++ desc_if->unmap_rdata(pdata, rdata); ++ ++ if (desc_if->map_rx_buffer(pdata, ring, rdata)) ++ break; ++ ++ hw_if->rx_desc_reset(rdata); ++ ++ ring->dirty++; ++ } ++ ++ /* Update the Rx Tail Pointer Register with address of ++ * the last cleaned entry */ ++ rdata = XGBE_GET_DESC_DATA(ring, ring->dirty - 1); ++ XGMAC_DMA_IOWRITE(channel, DMA_CH_RDTR_LO, ++ lower_32_bits(rdata->rdesc_dma)); ++} ++ ++static struct sk_buff *xgbe_create_skb(struct xgbe_prv_data *pdata, ++ struct xgbe_ring_data *rdata, ++ unsigned int *len) ++{ ++ struct net_device *netdev = pdata->netdev; ++ struct sk_buff *skb; ++ u8 *packet; ++ unsigned int copy_len; ++ ++ skb = netdev_alloc_skb_ip_align(netdev, rdata->rx.hdr.dma_len); ++ if (!skb) ++ return NULL; ++ ++ packet = page_address(rdata->rx.hdr.pa.pages) + ++ rdata->rx.hdr.pa.pages_offset; ++ copy_len = (rdata->rx.hdr_len) ? rdata->rx.hdr_len : *len; ++ copy_len = min(rdata->rx.hdr.dma_len, copy_len); ++ skb_copy_to_linear_data(skb, packet, copy_len); ++ skb_put(skb, copy_len); ++ ++ *len -= copy_len; ++ ++ return skb; ++} ++ ++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; ++ struct netdev_queue *txq; ++ int processed = 0; ++ unsigned int tx_packets = 0, tx_bytes = 0; ++ ++ DBGPR("-->xgbe_tx_poll\n"); ++ ++ /* Nothing to do if there isn't a Tx ring for this channel */ ++ if (!ring) ++ return 0; ++ ++ txq = netdev_get_tx_queue(netdev, channel->queue_index); ++ ++ while ((processed < XGBE_TX_DESC_MAX_PROC) && ++ (ring->dirty != ring->cur)) { ++ rdata = XGBE_GET_DESC_DATA(ring, ring->dirty); ++ rdesc = rdata->rdesc; ++ ++ if (!hw_if->tx_complete(rdesc)) ++ break; ++ ++ /* Make sure descriptor fields are read after reading the OWN ++ * bit */ ++ rmb(); ++ ++#ifdef XGMAC_ENABLE_TX_DESC_DUMP ++ xgbe_a0_dump_tx_desc(ring, ring->dirty, 1, 0); ++#endif ++ ++ if (hw_if->is_last_desc(rdesc)) { ++ tx_packets += rdata->tx.packets; ++ tx_bytes += rdata->tx.bytes; ++ } ++ ++ /* Free the SKB and reset the descriptor for re-use */ ++ desc_if->unmap_rdata(pdata, rdata); ++ hw_if->tx_desc_reset(rdata); ++ ++ processed++; ++ ring->dirty++; ++ } ++ ++ if (!processed) ++ return 0; ++ ++ netdev_tx_completed_queue(txq, tx_packets, tx_bytes); ++ ++ if ((ring->tx.queue_stopped == 1) && ++ (xgbe_tx_avail_desc(ring) > XGBE_TX_DESC_MIN_FREE)) { ++ ring->tx.queue_stopped = 0; ++ netif_tx_wake_queue(txq); ++ } ++ ++ DBGPR("<--xgbe_tx_poll: processed=%d\n", processed); ++ ++ 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_ring *ring = channel->rx_ring; ++ struct xgbe_ring_data *rdata; ++ struct xgbe_packet_data *packet; ++ struct net_device *netdev = pdata->netdev; ++ struct napi_struct *napi; ++ struct sk_buff *skb; ++ struct skb_shared_hwtstamps *hwtstamps; ++ unsigned int incomplete, error, context_next, context; ++ unsigned int len, put_len, max_len; ++ unsigned int received = 0; ++ int packet_count = 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; ++ ++ napi = (pdata->per_channel_irq) ? &channel->napi : &pdata->napi; ++ ++ rdata = XGBE_GET_DESC_DATA(ring, ring->cur); ++ packet = &ring->packet_data; ++ while (packet_count < budget) { ++ DBGPR(" cur = %d\n", ring->cur); ++ ++ /* First time in loop see if we need to restore state */ ++ if (!received && rdata->state_saved) { ++ incomplete = rdata->state.incomplete; ++ context_next = rdata->state.context_next; ++ skb = rdata->state.skb; ++ error = rdata->state.error; ++ len = rdata->state.len; ++ } else { ++ memset(packet, 0, sizeof(*packet)); ++ incomplete = 0; ++ context_next = 0; ++ skb = NULL; ++ error = 0; ++ len = 0; ++ } ++ ++read_again: ++ rdata = XGBE_GET_DESC_DATA(ring, ring->cur); ++ ++ if (xgbe_rx_dirty_desc(ring) > (XGBE_RX_DESC_CNT >> 3)) ++ xgbe_rx_refresh(channel); ++ ++ if (hw_if->dev_read(channel)) ++ break; ++ ++ received++; ++ ring->cur++; ++ ++ incomplete = XGMAC_GET_BITS(packet->attributes, ++ RX_PACKET_ATTRIBUTES, ++ INCOMPLETE); ++ context_next = XGMAC_GET_BITS(packet->attributes, ++ RX_PACKET_ATTRIBUTES, ++ CONTEXT_NEXT); ++ context = XGMAC_GET_BITS(packet->attributes, ++ RX_PACKET_ATTRIBUTES, ++ CONTEXT); ++ ++ /* Earlier error, just drain the remaining data */ ++ if ((incomplete || context_next) && error) ++ goto read_again; ++ ++ if (error || packet->errors) { ++ if (packet->errors) ++ DBGPR("Error in received packet\n"); ++ dev_kfree_skb(skb); ++ goto next_packet; ++ } ++ ++ if (!context) { ++ put_len = rdata->rx.len - len; ++ len += put_len; ++ ++ if (!skb) { ++ dma_sync_single_for_cpu(pdata->dev, ++ rdata->rx.hdr.dma, ++ rdata->rx.hdr.dma_len, ++ DMA_FROM_DEVICE); ++ ++ skb = xgbe_create_skb(pdata, rdata, &put_len); ++ if (!skb) { ++ error = 1; ++ goto skip_data; ++ } ++ } ++ ++ if (put_len) { ++ dma_sync_single_for_cpu(pdata->dev, ++ rdata->rx.buf.dma, ++ rdata->rx.buf.dma_len, ++ DMA_FROM_DEVICE); ++ ++ skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, ++ rdata->rx.buf.pa.pages, ++ rdata->rx.buf.pa.pages_offset, ++ put_len, rdata->rx.buf.dma_len); ++ rdata->rx.buf.pa.pages = NULL; ++ } ++ } ++ ++skip_data: ++ if (incomplete || context_next) ++ goto read_again; ++ ++ if (!skb) ++ goto next_packet; ++ ++ /* 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); ++ goto next_packet; ++ } ++ ++#ifdef XGMAC_ENABLE_RX_PKT_DUMP ++ xgbe_a0_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); ++ ++ if (XGMAC_GET_BITS(packet->attributes, ++ RX_PACKET_ATTRIBUTES, RX_TSTAMP)) { ++ u64 nsec; ++ ++ nsec = timecounter_cyc2time(&pdata->tstamp_tc, ++ packet->rx_tstamp); ++ hwtstamps = skb_hwtstamps(skb); ++ hwtstamps->hwtstamp = ns_to_ktime(nsec); ++ } ++ ++ if (XGMAC_GET_BITS(packet->attributes, ++ RX_PACKET_ATTRIBUTES, RSS_HASH)) ++ skb_set_hash(skb, packet->rss_hash, ++ packet->rss_hash_type); ++ ++ skb->dev = netdev; ++ skb->protocol = eth_type_trans(skb, netdev); ++ skb_record_rx_queue(skb, channel->queue_index); ++ skb_mark_napi_id(skb, napi); ++ ++ netdev->last_rx = jiffies; ++ napi_gro_receive(napi, skb); ++ ++next_packet: ++ packet_count++; ++ } ++ ++ /* Check if we need to save state before leaving */ ++ if (received && (incomplete || context_next)) { ++ rdata = XGBE_GET_DESC_DATA(ring, ring->cur); ++ rdata->state_saved = 1; ++ rdata->state.incomplete = incomplete; ++ rdata->state.context_next = context_next; ++ rdata->state.skb = skb; ++ rdata->state.len = len; ++ rdata->state.error = error; ++ } ++ ++ DBGPR("<--xgbe_rx_poll: packet_count = %d\n", packet_count); ++ ++ return packet_count; ++} ++ ++static int xgbe_one_poll(struct napi_struct *napi, int budget) ++{ ++ struct xgbe_channel *channel = container_of(napi, struct xgbe_channel, ++ napi); ++ int processed = 0; ++ ++ DBGPR("-->xgbe_one_poll: budget=%d\n", budget); ++ ++ /* Cleanup Tx ring first */ ++ xgbe_tx_poll(channel); ++ ++ /* Process Rx ring next */ ++ processed = xgbe_rx_poll(channel, budget); ++ ++ /* If we processed everything, we are done */ ++ if (processed < budget) { ++ /* Turn off polling */ ++ napi_complete(napi); ++ ++ /* Enable Tx and Rx interrupts */ ++ enable_irq(channel->dma_irq); ++ } ++ ++ DBGPR("<--xgbe_one_poll: received = %d\n", processed); ++ ++ return processed; ++} ++ ++static int xgbe_all_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 ring_budget; ++ int processed, last_processed; ++ unsigned int i; ++ ++ DBGPR("-->xgbe_all_poll: budget=%d\n", budget); ++ ++ processed = 0; ++ ring_budget = budget / pdata->rx_ring_count; ++ do { ++ last_processed = processed; ++ ++ channel = pdata->channel; ++ for (i = 0; i < pdata->channel_count; i++, channel++) { ++ /* Cleanup Tx ring first */ ++ xgbe_tx_poll(channel); ++ ++ /* Process Rx ring next */ ++ if (ring_budget > (budget - processed)) ++ ring_budget = budget - processed; ++ processed += xgbe_rx_poll(channel, ring_budget); ++ } ++ } while ((processed < budget) && (processed != last_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_all_poll: received = %d\n", processed); ++ ++ return processed; ++} ++ ++void xgbe_a0_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 = XGBE_GET_DESC_DATA(ring, idx); ++ rdesc = rdata->rdesc; ++ pr_alert("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_a0_dump_rx_desc(struct xgbe_ring *ring, struct xgbe_ring_desc *desc, ++ unsigned int idx) ++{ ++ pr_alert("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_a0_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"); ++} +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe-ethtool.c b/drivers/net/ethernet/amd/xgbe-a0/xgbe-ethtool.c +new file mode 100644 +index 000000000000..165ff1ceedcc +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe-ethtool.c +@@ -0,0 +1,616 @@ ++/* ++ * 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 <linux/net_tstamp.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; ++ ++ ret = phy_ethtool_gset(pdata->phydev, cmd); ++ cmd->transceiver = XCVR_EXTERNAL; ++ ++ 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; ++ ++ speed = ethtool_cmd_speed(cmd); ++ ++ if (cmd->phy_address != phydev->addr) ++ return -EINVAL; ++ ++ if ((cmd->autoneg != AUTONEG_ENABLE) && ++ (cmd->autoneg != AUTONEG_DISABLE)) ++ return -EINVAL; ++ ++ if (cmd->autoneg == AUTONEG_DISABLE) { ++ switch (speed) { ++ case SPEED_10000: ++ case SPEED_2500: ++ case SPEED_1000: ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ if (cmd->duplex != DUPLEX_FULL) ++ return -EINVAL; ++ } ++ ++ cmd->advertising &= phydev->supported; ++ if ((cmd->autoneg == AUTONEG_ENABLE) && !cmd->advertising) ++ return -EINVAL; ++ ++ 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); ++ ++ 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); ++ struct xgbe_hw_features *hw_feat = &pdata->hw_feat; ++ ++ 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_GET_BITS(hw_feat->version, MAC_VR, USERVER), ++ XGMAC_GET_BITS(hw_feat->version, MAC_VR, DEVID), ++ XGMAC_GET_BITS(hw_feat->version, 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->rx_desc_count) { ++ netdev_alert(netdev, "rx-frames is limited to %d frames\n", ++ pdata->rx_desc_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->tx_desc_count) { ++ netdev_alert(netdev, "tx-frames is limited to %d frames\n", ++ pdata->tx_desc_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 int xgbe_get_rxnfc(struct net_device *netdev, ++ struct ethtool_rxnfc *rxnfc, u32 *rule_locs) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ ++ switch (rxnfc->cmd) { ++ case ETHTOOL_GRXRINGS: ++ rxnfc->data = pdata->rx_ring_count; ++ break; ++ default: ++ return -EOPNOTSUPP; ++ } ++ ++ return 0; ++} ++ ++static u32 xgbe_get_rxfh_key_size(struct net_device *netdev) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ ++ return sizeof(pdata->rss_key); ++} ++ ++static u32 xgbe_get_rxfh_indir_size(struct net_device *netdev) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ ++ return ARRAY_SIZE(pdata->rss_table); ++} ++ ++static int xgbe_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, ++ u8 *hfunc) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ unsigned int i; ++ ++ if (indir) { ++ for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++) ++ indir[i] = XGMAC_GET_BITS(pdata->rss_table[i], ++ MAC_RSSDR, DMCH); ++ } ++ ++ if (key) ++ memcpy(key, pdata->rss_key, sizeof(pdata->rss_key)); ++ ++ if (hfunc) ++ *hfunc = ETH_RSS_HASH_TOP; ++ ++ return 0; ++} ++ ++static int xgbe_set_rxfh(struct net_device *netdev, const u32 *indir, ++ const u8 *key, const u8 hfunc) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ struct xgbe_hw_if *hw_if = &pdata->hw_if; ++ unsigned int ret; ++ ++ if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) ++ return -EOPNOTSUPP; ++ ++ if (indir) { ++ ret = hw_if->set_rss_lookup_table(pdata, indir); ++ if (ret) ++ return ret; ++ } ++ ++ if (key) { ++ ret = hw_if->set_rss_hash_key(pdata, key); ++ if (ret) ++ return ret; ++ } ++ ++ return 0; ++} ++ ++static int xgbe_get_ts_info(struct net_device *netdev, ++ struct ethtool_ts_info *ts_info) ++{ ++ struct xgbe_prv_data *pdata = netdev_priv(netdev); ++ ++ ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | ++ SOF_TIMESTAMPING_RX_SOFTWARE | ++ SOF_TIMESTAMPING_SOFTWARE | ++ SOF_TIMESTAMPING_TX_HARDWARE | ++ SOF_TIMESTAMPING_RX_HARDWARE | ++ SOF_TIMESTAMPING_RAW_HARDWARE; ++ ++ if (pdata->ptp_clock) ++ ts_info->phc_index = ptp_clock_index(pdata->ptp_clock); ++ else ++ ts_info->phc_index = -1; ++ ++ ts_info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON); ++ ts_info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | ++ (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) | ++ (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | ++ (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | ++ (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | ++ (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | ++ (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) | ++ (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) | ++ (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) | ++ (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | ++ (1 << HWTSTAMP_FILTER_ALL); ++ ++ 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, ++ .get_rxnfc = xgbe_get_rxnfc, ++ .get_rxfh_key_size = xgbe_get_rxfh_key_size, ++ .get_rxfh_indir_size = xgbe_get_rxfh_indir_size, ++ .get_rxfh = xgbe_get_rxfh, ++ .set_rxfh = xgbe_set_rxfh, ++ .get_ts_info = xgbe_get_ts_info, ++}; ++ ++struct ethtool_ops *xgbe_a0_get_ethtool_ops(void) ++{ ++ return (struct ethtool_ops *)&xgbe_ethtool_ops; ++} +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe-main.c b/drivers/net/ethernet/amd/xgbe-a0/xgbe-main.c +new file mode 100644 +index 000000000000..a85fb4965835 +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe-main.c +@@ -0,0 +1,643 @@ ++/* ++ * 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/of_address.h> ++#include <linux/clk.h> ++#include <linux/property.h> ++#include <linux/acpi.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); ++ ++unsigned int speed = 0; ++module_param(speed, uint, 0444); ++MODULE_PARM_DESC(speed, " Select operating speed (1=1GbE, 2=2.5GbE, 10=10GbE, any other value implies auto-negotiation"); ++ ++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->phy_speed = SPEED_UNKNOWN; ++ pdata->power_down = 0; ++ ++ if (speed == 10) { ++ pdata->default_autoneg = AUTONEG_DISABLE; ++ pdata->default_speed = SPEED_10000; ++ } else if (speed == 2) { ++ pdata->default_autoneg = AUTONEG_DISABLE; ++ pdata->default_speed = SPEED_2500; ++ } else if (speed == 1) { ++ pdata->default_autoneg = AUTONEG_DISABLE; ++ pdata->default_speed = SPEED_1000; ++ } else { ++ 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_a0_init_function_ptrs_dev(&pdata->hw_if); ++ xgbe_a0_init_function_ptrs_desc(&pdata->desc_if); ++} ++ ++#ifdef CONFIG_ACPI ++static int xgbe_acpi_support(struct xgbe_prv_data *pdata) ++{ ++ struct acpi_device *adev = pdata->adev; ++ struct device *dev = pdata->dev; ++ u32 property; ++ acpi_handle handle; ++ acpi_status status; ++ unsigned long long data; ++ int cca; ++ int ret; ++ ++ /* Obtain the system clock setting */ ++ ret = device_property_read_u32(dev, XGBE_ACPI_DMA_FREQ, &property); ++ if (ret) { ++ dev_err(dev, "unable to obtain %s property\n", ++ XGBE_ACPI_DMA_FREQ); ++ return ret; ++ } ++ pdata->sysclk_rate = property; ++ ++ /* Obtain the PTP clock setting */ ++ ret = device_property_read_u32(dev, XGBE_ACPI_PTP_FREQ, &property); ++ if (ret) { ++ dev_err(dev, "unable to obtain %s property\n", ++ XGBE_ACPI_PTP_FREQ); ++ return ret; ++ } ++ pdata->ptpclk_rate = property; ++ ++ /* Retrieve the device cache coherency value */ ++ handle = adev->handle; ++ do { ++ status = acpi_evaluate_integer(handle, "_CCA", NULL, &data); ++ if (!ACPI_FAILURE(status)) { ++ cca = data; ++ break; ++ } ++ ++ status = acpi_get_parent(handle, &handle); ++ } while (!ACPI_FAILURE(status)); ++ ++ if (ACPI_FAILURE(status)) { ++ dev_err(dev, "error obtaining acpi coherency value\n"); ++ return -EINVAL; ++ } ++ pdata->coherent = !!cca; ++ ++ return 0; ++} ++#else /* CONFIG_ACPI */ ++static int xgbe_acpi_support(struct xgbe_prv_data *pdata) ++{ ++ return -EINVAL; ++} ++#endif /* CONFIG_ACPI */ ++ ++#ifdef CONFIG_OF ++static int xgbe_of_support(struct xgbe_prv_data *pdata) ++{ ++ struct device *dev = pdata->dev; ++ ++ /* Obtain the system clock setting */ ++ pdata->sysclk = devm_clk_get(dev, XGBE_DMA_CLOCK); ++ if (IS_ERR(pdata->sysclk)) { ++ dev_err(dev, "dma devm_clk_get failed\n"); ++ return PTR_ERR(pdata->sysclk); ++ } ++ pdata->sysclk_rate = clk_get_rate(pdata->sysclk); ++ ++ /* Obtain the PTP clock setting */ ++ pdata->ptpclk = devm_clk_get(dev, XGBE_PTP_CLOCK); ++ if (IS_ERR(pdata->ptpclk)) { ++ dev_err(dev, "ptp devm_clk_get failed\n"); ++ return PTR_ERR(pdata->ptpclk); ++ } ++ pdata->ptpclk_rate = clk_get_rate(pdata->ptpclk); ++ ++ /* Retrieve the device cache coherency value */ ++ pdata->coherent = of_dma_is_coherent(dev->of_node); ++ ++ return 0; ++} ++#else /* CONFIG_OF */ ++static int xgbe_of_support(struct xgbe_prv_data *pdata) ++{ ++ return -EINVAL; ++} ++#endif /*CONFIG_OF */ ++ ++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 char *phy_mode; ++ unsigned int i; ++ int ret; ++ ++ DBGPR("--> xgbe_probe\n"); ++ ++ netdev = alloc_etherdev_mq(sizeof(struct xgbe_prv_data), ++ XGBE_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->adev = ACPI_COMPANION(dev); ++ pdata->dev = dev; ++ platform_set_drvdata(pdev, netdev); ++ ++ spin_lock_init(&pdata->lock); ++ mutex_init(&pdata->xpcs_mutex); ++ mutex_init(&pdata->rss_mutex); ++ spin_lock_init(&pdata->tstamp_lock); ++ ++ /* Check if we should use ACPI or DT */ ++ pdata->use_acpi = (!pdata->adev || acpi_disabled) ? 0 : 1; ++ ++ /* Set and validate the number of descriptors for a ring */ ++ BUILD_BUG_ON_NOT_POWER_OF_2(XGBE_TX_DESC_CNT); ++ pdata->tx_desc_count = XGBE_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(XGBE_RX_DESC_CNT); ++ pdata->rx_desc_count = XGBE_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 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); ++ ++ /* Retrieve the MAC address */ ++ ret = device_property_read_u8_array(dev, XGBE_MAC_ADDR_PROPERTY, ++ pdata->mac_addr, ++ sizeof(pdata->mac_addr)); ++ if (ret || !is_valid_ether_addr(pdata->mac_addr)) { ++ dev_err(dev, "invalid %s property\n", XGBE_MAC_ADDR_PROPERTY); ++ if (!ret) ++ ret = -EINVAL; ++ goto err_io; ++ } ++ ++ /* Retrieve the PHY mode - it must be "xgmii" */ ++ ret = device_property_read_string(dev, XGBE_PHY_MODE_PROPERTY, ++ &phy_mode); ++ if (ret || strcmp(phy_mode, phy_modes(PHY_INTERFACE_MODE_XGMII))) { ++ dev_err(dev, "invalid %s property\n", XGBE_PHY_MODE_PROPERTY); ++ if (!ret) ++ ret = -EINVAL; ++ goto err_io; ++ } ++ pdata->phy_mode = PHY_INTERFACE_MODE_XGMII; ++ ++ /* Check for per channel interrupt support */ ++ if (device_property_present(dev, XGBE_DMA_IRQS_PROPERTY)) ++ pdata->per_channel_irq = 1; ++ ++ /* Obtain device settings unique to ACPI/OF */ ++ if (pdata->use_acpi) ++ ret = xgbe_acpi_support(pdata); ++ else ++ ret = xgbe_of_support(pdata); ++ if (ret) ++ goto err_io; ++ ++ /* Set the DMA coherency values */ ++ if (pdata->coherent) { ++ pdata->axdomain = XGBE_DMA_OS_AXDOMAIN; ++ pdata->arcache = XGBE_DMA_OS_ARCACHE; ++ pdata->awcache = XGBE_DMA_OS_AWCACHE; ++ } else { ++ pdata->axdomain = XGBE_DMA_SYS_AXDOMAIN; ++ pdata->arcache = XGBE_DMA_SYS_ARCACHE; ++ pdata->awcache = XGBE_DMA_SYS_AWCACHE; ++ } ++ ++ /* Set the DMA mask */ ++ if (!dev->dma_mask) ++ dev->dma_mask = &dev->coherent_dma_mask; ++ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40)); ++ if (ret) { ++ dev_err(dev, "dma_set_mask_and_coherent failed\n"); ++ goto err_io; ++ } ++ ++ /* Get the device interrupt */ ++ ret = platform_get_irq(pdev, 0); ++ if (ret < 0) { ++ dev_err(dev, "platform_get_irq 0 failed\n"); ++ goto err_io; ++ } ++ pdata->dev_irq = ret; ++ ++ netdev->irq = pdata->dev_irq; ++ netdev->base_addr = (unsigned long)pdata->xgmac_regs; ++ memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len); ++ ++ /* 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_a0_get_all_hw_features(pdata); ++ ++ /* Set default configuration data */ ++ xgbe_default_config(pdata); ++ ++ /* Calculate the number of Tx and Rx rings to be created ++ * -Tx (DMA) Channels map 1-to-1 to Tx Queues so set ++ * the number of Tx queues to the number of Tx channels ++ * enabled ++ * -Rx (DMA) Channels do not map 1-to-1 so use the actual ++ * number of Rx queues ++ */ ++ pdata->tx_ring_count = min_t(unsigned int, num_online_cpus(), ++ pdata->hw_feat.tx_ch_cnt); ++ pdata->tx_q_count = pdata->tx_ring_count; ++ ret = netif_set_real_num_tx_queues(netdev, pdata->tx_ring_count); ++ if (ret) { ++ 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); ++ pdata->rx_q_count = pdata->hw_feat.rx_q_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; ++ } ++ ++ /* Initialize RSS hash key and lookup table */ ++ netdev_rss_key_fill(pdata->rss_key, sizeof(pdata->rss_key)); ++ ++ for (i = 0; i < XGBE_RSS_MAX_TABLE_SIZE; i++) ++ XGMAC_SET_BITS(pdata->rss_table[i], MAC_RSSDR, DMCH, ++ i % pdata->rx_ring_count); ++ ++ XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1); ++ XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1); ++ XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1); ++ ++ /* 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_a0_mdio_register(pdata); ++ if (ret) ++ goto err_bus_id; ++ ++ /* Set device operations */ ++ netdev->netdev_ops = xgbe_a0_get_netdev_ops(); ++ netdev->ethtool_ops = xgbe_a0_get_ethtool_ops(); ++#ifdef CONFIG_AMD_XGBE_DCB ++ netdev->dcbnl_ops = xgbe_a0_get_dcbnl_ops(); ++#endif ++ ++ /* 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 | ++ NETIF_F_HW_VLAN_CTAG_FILTER; ++ ++ if (pdata->hw_feat.rss) ++ netdev->hw_features |= NETIF_F_RXHASH; ++ ++ 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; ++ ++ netdev->priv_flags |= IFF_UNICAST_FLT; ++ ++ xgbe_a0_init_rx_coalesce(pdata); ++ xgbe_a0_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_a0_ptp_register(pdata); ++ ++ xgbe_a0_debugfs_init(pdata); ++ ++ netdev_notice(netdev, "net device enabled\n"); ++ ++ DBGPR("<-- xgbe_probe\n"); ++ ++ return 0; ++ ++err_reg_netdev: ++ xgbe_a0_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_a0_debugfs_exit(pdata); ++ ++ xgbe_a0_ptp_unregister(pdata); ++ ++ unregister_netdev(netdev); ++ ++ xgbe_a0_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_a0_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_a0_powerup(netdev, XGMAC_DRIVER_CONTEXT); ++ ++ DBGPR("<--xgbe_resume\n"); ++ ++ return ret; ++} ++#endif /* CONFIG_PM */ ++ ++#ifdef CONFIG_ACPI ++static const struct acpi_device_id xgbe_a0_acpi_match[] = { ++ { "AMDI8000", 0 }, ++ {}, ++}; ++ ++MODULE_DEVICE_TABLE(acpi, xgbe_a0_acpi_match); ++#endif ++ ++#ifdef CONFIG_OF ++static const struct of_device_id xgbe_a0_of_match[] = { ++ { .compatible = "amd,xgbe-seattle-v0a", }, ++ {}, ++}; ++ ++MODULE_DEVICE_TABLE(of, xgbe_a0_of_match); ++#endif ++ ++static SIMPLE_DEV_PM_OPS(xgbe_pm_ops, xgbe_suspend, xgbe_resume); ++ ++static struct platform_driver xgbe_a0_driver = { ++ .driver = { ++ .name = "amd-xgbe-a0", ++#ifdef CONFIG_ACPI ++ .acpi_match_table = xgbe_a0_acpi_match, ++#endif ++#ifdef CONFIG_OF ++ .of_match_table = xgbe_a0_of_match, ++#endif ++ .pm = &xgbe_pm_ops, ++ }, ++ .probe = xgbe_probe, ++ .remove = xgbe_remove, ++}; ++ ++module_platform_driver(xgbe_a0_driver); +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe-a0/xgbe-mdio.c +new file mode 100644 +index 000000000000..b84d0481bed8 +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe-mdio.c +@@ -0,0 +1,312 @@ ++/* ++ * 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/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; ++} ++ ++void xgbe_a0_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_a0_mdio_register(struct xgbe_prv_data *pdata) ++{ ++ struct mii_bus *mii; ++ struct phy_device *phydev; ++ int ret = 0; ++ ++ DBGPR("-->xgbe_a0_mdio_register\n"); ++ ++ mii = mdiobus_alloc(); ++ if (!mii) { ++ dev_err(pdata->dev, "mdiobus_alloc failed\n"); ++ return -ENOMEM; ++ } ++ ++ /* 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])); ++ ++ ret = phy_device_register(phydev); ++ if (ret) { ++ dev_err(pdata->dev, "phy_device_register failed\n"); ++ goto err_phy_device; ++ } ++ if (!phydev->dev.driver) { ++ dev_err(pdata->dev, "phy driver probe failed\n"); ++ ret = -EIO; ++ goto err_phy_device; ++ } ++ ++ /* Add a reference to the PHY driver so it can't be unloaded */ ++ pdata->phy_module = phydev->dev.driver->owner; ++ 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; ++ ++ phydev->autoneg = pdata->default_autoneg; ++ if (phydev->autoneg == AUTONEG_DISABLE) { ++ phydev->speed = pdata->default_speed; ++ phydev->duplex = DUPLEX_FULL; ++ ++ phydev->advertising &= ~ADVERTISED_Autoneg; ++ } ++ ++ pdata->phydev = phydev; ++ ++ DBGPHY_REGS(pdata); ++ ++ DBGPR("<--xgbe_a0_mdio_register\n"); ++ ++ return 0; ++ ++err_phy_device: ++ phy_device_free(phydev); ++ ++err_mdiobus_register: ++ mdiobus_unregister(mii); ++ ++err_mdiobus_alloc: ++ mdiobus_free(mii); ++ ++ return ret; ++} ++ ++void xgbe_a0_mdio_unregister(struct xgbe_prv_data *pdata) ++{ ++ DBGPR("-->xgbe_a0_mdio_unregister\n"); ++ ++ 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_a0_mdio_unregister\n"); ++} +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe-ptp.c b/drivers/net/ethernet/amd/xgbe-a0/xgbe-ptp.c +new file mode 100644 +index 000000000000..1016aeb96162 +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe-ptp.c +@@ -0,0 +1,278 @@ ++/* ++ * 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/clk.h> ++#include <linux/clocksource.h> ++#include <linux/ptp_clock_kernel.h> ++#include <linux/net_tstamp.h> ++ ++#include "xgbe.h" ++#include "xgbe-common.h" ++ ++static cycle_t xgbe_cc_read(const struct cyclecounter *cc) ++{ ++ struct xgbe_prv_data *pdata = container_of(cc, ++ struct xgbe_prv_data, ++ tstamp_cc); ++ u64 nsec; ++ ++ nsec = pdata->hw_if.get_tstamp_time(pdata); ++ ++ return nsec; ++} ++ ++static int xgbe_adjfreq(struct ptp_clock_info *info, s32 delta) ++{ ++ struct xgbe_prv_data *pdata = container_of(info, ++ struct xgbe_prv_data, ++ ptp_clock_info); ++ unsigned long flags; ++ u64 adjust; ++ u32 addend, diff; ++ unsigned int neg_adjust = 0; ++ ++ if (delta < 0) { ++ neg_adjust = 1; ++ delta = -delta; ++ } ++ ++ adjust = pdata->tstamp_addend; ++ adjust *= delta; ++ diff = div_u64(adjust, 1000000000UL); ++ ++ addend = (neg_adjust) ? pdata->tstamp_addend - diff : ++ pdata->tstamp_addend + diff; ++ ++ spin_lock_irqsave(&pdata->tstamp_lock, flags); ++ ++ pdata->hw_if.update_tstamp_addend(pdata, addend); ++ ++ spin_unlock_irqrestore(&pdata->tstamp_lock, flags); ++ ++ return 0; ++} ++ ++static int xgbe_adjtime(struct ptp_clock_info *info, s64 delta) ++{ ++ struct xgbe_prv_data *pdata = container_of(info, ++ struct xgbe_prv_data, ++ ptp_clock_info); ++ unsigned long flags; ++ ++ spin_lock_irqsave(&pdata->tstamp_lock, flags); ++ timecounter_adjtime(&pdata->tstamp_tc, delta); ++ spin_unlock_irqrestore(&pdata->tstamp_lock, flags); ++ ++ return 0; ++} ++ ++static int xgbe_gettime(struct ptp_clock_info *info, struct timespec64 *ts) ++{ ++ struct xgbe_prv_data *pdata = container_of(info, ++ struct xgbe_prv_data, ++ ptp_clock_info); ++ unsigned long flags; ++ u64 nsec; ++ ++ spin_lock_irqsave(&pdata->tstamp_lock, flags); ++ ++ nsec = timecounter_read(&pdata->tstamp_tc); ++ ++ spin_unlock_irqrestore(&pdata->tstamp_lock, flags); ++ ++ *ts = ns_to_timespec64(nsec); ++ ++ return 0; ++} ++ ++static int xgbe_settime(struct ptp_clock_info *info, const struct timespec64 *ts) ++{ ++ struct xgbe_prv_data *pdata = container_of(info, ++ struct xgbe_prv_data, ++ ptp_clock_info); ++ unsigned long flags; ++ u64 nsec; ++ ++ nsec = timespec64_to_ns(ts); ++ ++ spin_lock_irqsave(&pdata->tstamp_lock, flags); ++ ++ timecounter_init(&pdata->tstamp_tc, &pdata->tstamp_cc, nsec); ++ ++ spin_unlock_irqrestore(&pdata->tstamp_lock, flags); ++ ++ return 0; ++} ++ ++static int xgbe_enable(struct ptp_clock_info *info, ++ struct ptp_clock_request *request, int on) ++{ ++ return -EOPNOTSUPP; ++} ++ ++void xgbe_a0_ptp_register(struct xgbe_prv_data *pdata) ++{ ++ struct ptp_clock_info *info = &pdata->ptp_clock_info; ++ struct ptp_clock *clock; ++ struct cyclecounter *cc = &pdata->tstamp_cc; ++ u64 dividend; ++ ++ snprintf(info->name, sizeof(info->name), "%s", ++ netdev_name(pdata->netdev)); ++ info->owner = THIS_MODULE; ++ info->max_adj = pdata->ptpclk_rate; ++ info->adjfreq = xgbe_adjfreq; ++ info->adjtime = xgbe_adjtime; ++ info->gettime64 = xgbe_gettime; ++ info->settime64 = xgbe_settime; ++ info->enable = xgbe_enable; ++ ++ clock = ptp_clock_register(info, pdata->dev); ++ if (IS_ERR(clock)) { ++ dev_err(pdata->dev, "ptp_clock_register failed\n"); ++ return; ++ } ++ ++ pdata->ptp_clock = clock; ++ ++ /* Calculate the addend: ++ * addend = 2^32 / (PTP ref clock / 50Mhz) ++ * = (2^32 * 50Mhz) / PTP ref clock ++ */ ++ dividend = 50000000; ++ dividend <<= 32; ++ pdata->tstamp_addend = div_u64(dividend, pdata->ptpclk_rate); ++ ++ /* Setup the timecounter */ ++ cc->read = xgbe_cc_read; ++ cc->mask = CLOCKSOURCE_MASK(64); ++ cc->mult = 1; ++ cc->shift = 0; ++ ++ timecounter_init(&pdata->tstamp_tc, &pdata->tstamp_cc, ++ ktime_to_ns(ktime_get_real())); ++ ++ /* Disable all timestamping to start */ ++ XGMAC_IOWRITE(pdata, MAC_TCR, 0); ++ pdata->tstamp_config.tx_type = HWTSTAMP_TX_OFF; ++ pdata->tstamp_config.rx_filter = HWTSTAMP_FILTER_NONE; ++} ++ ++void xgbe_a0_ptp_unregister(struct xgbe_prv_data *pdata) ++{ ++ if (pdata->ptp_clock) ++ ptp_clock_unregister(pdata->ptp_clock); ++} +diff --git a/drivers/net/ethernet/amd/xgbe-a0/xgbe.h b/drivers/net/ethernet/amd/xgbe-a0/xgbe.h +new file mode 100644 +index 000000000000..04c00d236c49 +--- /dev/null ++++ b/drivers/net/ethernet/amd/xgbe-a0/xgbe.h +@@ -0,0 +1,868 @@ ++/* ++ * 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> ++#include <linux/if_vlan.h> ++#include <linux/bitops.h> ++#include <linux/ptp_clock_kernel.h> ++#include <linux/timecounter.h> ++#include <linux/net_tstamp.h> ++#include <net/dcbnl.h> ++ ++#define XGBE_DRV_NAME "amd-xgbe" ++#define XGBE_DRV_VERSION "0.0.0-a" ++#define XGBE_DRV_DESC "AMD 10 Gigabit Ethernet Driver" ++ ++/* Descriptor related defines */ ++#define XGBE_TX_DESC_CNT 512 ++#define XGBE_TX_DESC_MIN_FREE (XGBE_TX_DESC_CNT >> 3) ++#define XGBE_TX_DESC_MAX_PROC (XGBE_TX_DESC_CNT >> 1) ++#define XGBE_RX_DESC_CNT 512 ++ ++#define XGBE_TX_MAX_BUF_SIZE (0x3fff & ~(64 - 1)) ++ ++/* Descriptors required for maximum contigous TSO/GSO packet */ ++#define XGBE_TX_MAX_SPLIT ((GSO_MAX_SIZE / XGBE_TX_MAX_BUF_SIZE) + 1) ++ ++/* Maximum possible descriptors needed for an SKB: ++ * - Maximum number of SKB frags ++ * - Maximum descriptors for contiguous TSO/GSO packet ++ * - Possible context descriptor ++ * - Possible TSO header descriptor ++ */ ++#define XGBE_TX_MAX_DESCS (MAX_SKB_FRAGS + XGBE_TX_MAX_SPLIT + 2) ++ ++#define XGBE_RX_MIN_BUF_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN) ++#define XGBE_RX_BUF_ALIGN 64 ++#define XGBE_SKB_ALLOC_SIZE 256 ++#define XGBE_SPH_HDSMS_SIZE 2 /* Keep in sync with SKB_ALLOC_SIZE */ ++ ++#define XGBE_MAX_DMA_CHANNELS 16 ++#define XGBE_MAX_QUEUES 16 ++#define XGBE_DMA_STOP_TIMEOUT 5 ++ ++/* DMA cache settings - Outer sharable, write-back, write-allocate */ ++#define XGBE_DMA_OS_AXDOMAIN 0x2 ++#define XGBE_DMA_OS_ARCACHE 0xb ++#define XGBE_DMA_OS_AWCACHE 0xf ++ ++/* DMA cache settings - System, no caches used */ ++#define XGBE_DMA_SYS_AXDOMAIN 0x3 ++#define XGBE_DMA_SYS_ARCACHE 0x0 ++#define XGBE_DMA_SYS_AWCACHE 0x0 ++ ++#define XGBE_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 ++ ++/* MDIO bus phy name */ ++#define XGBE_PHY_NAME "amd_xgbe_phy_a0" ++#define XGBE_PRTAD 0 ++ ++/* Common property names */ ++#define XGBE_MAC_ADDR_PROPERTY "mac-address" ++#define XGBE_PHY_MODE_PROPERTY "phy-mode" ++#define XGBE_DMA_IRQS_PROPERTY "amd,per-channel-interrupt" ++ ++/* Device-tree clock names */ ++#define XGBE_DMA_CLOCK "dma_clk" ++#define XGBE_PTP_CLOCK "ptp_clk" ++ ++/* ACPI property names */ ++#define XGBE_ACPI_DMA_FREQ "amd,dma-freq" ++#define XGBE_ACPI_PTP_FREQ "amd,ptp-freq" ++ ++/* Timestamp support - values based on 50MHz PTP clock ++ * 50MHz => 20 nsec ++ */ ++#define XGBE_TSTAMP_SSINC 20 ++#define XGBE_TSTAMP_SNSINC 0 ++ ++/* Driver PMT macros */ ++#define XGMAC_DRIVER_CONTEXT 1 ++#define XGMAC_IOCTL_CONTEXT 2 ++ ++#define XGBE_FIFO_MAX 81920 ++#define XGBE_FIFO_SIZE_B(x) (x) ++#define XGBE_FIFO_SIZE_KB(x) (x * 1024) ++ ++#define XGBE_TC_MIN_QUANTUM 10 ++ ++/* Helper macro for descriptor handling ++ * Always use XGBE_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 XGBE_GET_DESC_DATA(_ring, _idx) \ ++ ((_ring)->rdata + \ ++ ((_idx) & ((_ring)->rdesc_count - 1))) ++ ++/* Default coalescing parameters */ ++#define XGMAC_INIT_DMA_TX_USECS 50 ++#define XGMAC_INIT_DMA_TX_FRAMES 25 ++ ++#define XGMAC_MAX_DMA_RIWT 0xff ++#define XGMAC_INIT_DMA_RX_USECS 30 ++#define XGMAC_INIT_DMA_RX_FRAMES 25 ++ ++/* Flow control queue count */ ++#define XGMAC_MAX_FLOW_CONTROL_QUEUES 8 ++ ++/* Maximum MAC address hash table size (256 bits = 8 bytes) */ ++#define XGBE_MAC_HASH_TABLE_SIZE 8 ++ ++/* Receive Side Scaling */ ++#define XGBE_RSS_HASH_KEY_SIZE 40 ++#define XGBE_RSS_MAX_TABLE_SIZE 256 ++#define XGBE_RSS_LOOKUP_TABLE_TYPE 0 ++#define XGBE_RSS_HASH_KEY_TYPE 1 ++ ++struct xgbe_prv_data; ++ ++struct xgbe_packet_data { ++ struct sk_buff *skb; ++ ++ 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; ++ ++ u64 rx_tstamp; ++ ++ u32 rss_hash; ++ enum pkt_hash_types rss_hash_type; ++ ++ unsigned int tx_packets; ++ unsigned int tx_bytes; ++}; ++ ++/* Common Rx and Tx descriptor mapping */ ++struct xgbe_ring_desc { ++ __le32 desc0; ++ __le32 desc1; ++ __le32 desc2; ++ __le32 desc3; ++}; ++ ++/* Page allocation related values */ ++struct xgbe_page_alloc { ++ struct page *pages; ++ unsigned int pages_len; ++ unsigned int pages_offset; ++ ++ dma_addr_t pages_dma; ++}; ++ ++/* Ring entry buffer data */ ++struct xgbe_buffer_data { ++ struct xgbe_page_alloc pa; ++ struct xgbe_page_alloc pa_unmap; ++ ++ dma_addr_t dma; ++ unsigned int dma_len; ++}; ++ ++/* Tx-related ring data */ ++struct xgbe_tx_ring_data { ++ unsigned int packets; /* BQL packet count */ ++ unsigned int bytes; /* BQL byte count */ ++}; ++ ++/* Rx-related ring data */ ++struct xgbe_rx_ring_data { ++ struct xgbe_buffer_data hdr; /* Header locations */ ++ struct xgbe_buffer_data buf; /* Payload locations */ ++ ++ unsigned short hdr_len; /* Length of received header */ ++ unsigned short len; /* Length of received packet */ ++}; ++ ++/* Structure used to hold information related to the descriptor ++ * and the packet associated with the descriptor (always use ++ * use the XGBE_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 */ ++ ++ struct xgbe_tx_ring_data tx; /* Tx-related data */ ++ struct xgbe_rx_ring_data rx; /* Rx-related data */ ++ ++ unsigned int interrupt; /* Interrupt indicator */ ++ ++ unsigned int mapped_as_page; ++ ++ /* Incomplete receive save location. If the budget is exhausted ++ * or the last descriptor (last normal descriptor or a following ++ * context descriptor) has not been DMA'd yet the current state ++ * of the receive processing needs to be saved. ++ */ ++ unsigned int state_saved; ++ struct { ++ unsigned int incomplete; ++ unsigned int context_next; ++ struct sk_buff *skb; ++ unsigned int len; ++ unsigned int error; ++ } state; ++}; ++ ++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 XGBE_GET_DESC_DATA macro to access this data) ++ */ ++ struct xgbe_ring_data *rdata; ++ ++ /* Page allocation for RX buffers */ ++ struct xgbe_page_alloc rx_hdr_pa; ++ struct xgbe_page_alloc rx_buf_pa; ++ ++ /* 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: index of descriptor to check for buffer reallocation ++ */ ++ 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 int xmit_more; ++ unsigned short cur_mss; ++ unsigned short cur_vlan_ctag; ++ } tx; ++ }; ++} ____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; ++ ++ /* Per channel interrupt irq number */ ++ int dma_irq; ++ char dma_irq_name[IFNAMSIZ + 32]; ++ ++ /* Netdev related settings */ ++ struct napi_struct napi; ++ ++ 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_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_TI_RI, ++ 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 (*add_mac_addresses)(struct xgbe_prv_data *); ++ 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 (*enable_rx_vlan_filtering)(struct xgbe_prv_data *); ++ int (*disable_rx_vlan_filtering)(struct xgbe_prv_data *); ++ int (*update_vlan_hash_table)(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 (*dev_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 *); ++ void (*tx_start_xmit)(struct xgbe_channel *, struct xgbe_ring *); ++ ++ /* 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 *); ++ ++ /* For Timestamp config */ ++ int (*config_tstamp)(struct xgbe_prv_data *, unsigned int); ++ void (*update_tstamp_addend)(struct xgbe_prv_data *, unsigned int); ++ void (*set_tstamp_time)(struct xgbe_prv_data *, unsigned int sec, ++ unsigned int nsec); ++ u64 (*get_tstamp_time)(struct xgbe_prv_data *); ++ u64 (*get_tx_tstamp)(struct xgbe_prv_data *); ++ ++ /* For Data Center Bridging config */ ++ void (*config_dcb_tc)(struct xgbe_prv_data *); ++ void (*config_dcb_pfc)(struct xgbe_prv_data *); ++ ++ /* For Receive Side Scaling */ ++ int (*enable_rss)(struct xgbe_prv_data *); ++ int (*disable_rss)(struct xgbe_prv_data *); ++ int (*set_rss_hash_key)(struct xgbe_prv_data *, const u8 *); ++ int (*set_rss_lookup_table)(struct xgbe_prv_data *, const u32 *); ++}; ++ ++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 *); ++ int (*map_rx_buffer)(struct xgbe_prv_data *, struct xgbe_ring *, ++ struct xgbe_ring_data *); ++ void (*unmap_rdata)(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 Version */ ++ unsigned int version; ++ ++ /* 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 tc_cnt; /* Number of Traffic Classes */ ++ 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 acpi_device *adev; ++ struct device *dev; ++ ++ /* ACPI or DT flag */ ++ unsigned int use_acpi; ++ ++ /* 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; ++ ++ /* RSS addressing mutex */ ++ struct mutex rss_mutex; ++ ++ int dev_irq; ++ unsigned int per_channel_irq; ++ ++ struct xgbe_hw_if hw_if; ++ struct xgbe_desc_if desc_if; ++ ++ /* AXI DMA settings */ ++ unsigned int coherent; ++ unsigned int axdomain; ++ unsigned int arcache; ++ unsigned int awcache; ++ ++ /* 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; ++ ++ unsigned int tx_q_count; ++ unsigned int rx_q_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 Rx buffer size */ ++ unsigned int rx_buf_size; ++ ++ /* Flow control settings */ ++ unsigned int pause_autoneg; ++ unsigned int tx_pause; ++ unsigned int rx_pause; ++ ++ /* Receive Side Scaling settings */ ++ u8 rss_key[XGBE_RSS_HASH_KEY_SIZE]; ++ u32 rss_table[XGBE_RSS_MAX_TABLE_SIZE]; ++ u32 rss_options; ++ ++ /* 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 */ ++ unsigned char mac_addr[ETH_ALEN]; ++ netdev_features_t netdev_features; ++ struct napi_struct napi; ++ struct xgbe_mmc_stats mmc_stats; ++ ++ /* Filtering support */ ++ unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; ++ ++ /* Device clocks */ ++ struct clk *sysclk; ++ unsigned long sysclk_rate; ++ struct clk *ptpclk; ++ unsigned long ptpclk_rate; ++ ++ /* Timestamp support */ ++ spinlock_t tstamp_lock; ++ struct ptp_clock_info ptp_clock_info; ++ struct ptp_clock *ptp_clock; ++ struct hwtstamp_config tstamp_config; ++ struct cyclecounter tstamp_cc; ++ struct timecounter tstamp_tc; ++ unsigned int tstamp_addend; ++ struct work_struct tx_tstamp_work; ++ struct sk_buff *tx_tstamp_skb; ++ u64 tx_tstamp; ++ ++ /* DCB support */ ++ struct ieee_ets *ets; ++ struct ieee_pfc *pfc; ++ unsigned int q2tc_map[XGBE_MAX_QUEUES]; ++ unsigned int prio2q_map[IEEE_8021QAZ_MAX_TCS]; ++ ++ /* 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_a0_init_function_ptrs_dev(struct xgbe_hw_if *); ++void xgbe_a0_init_function_ptrs_desc(struct xgbe_desc_if *); ++struct net_device_ops *xgbe_a0_get_netdev_ops(void); ++struct ethtool_ops *xgbe_a0_get_ethtool_ops(void); ++#ifdef CONFIG_AMD_XGBE_DCB ++const struct dcbnl_rtnl_ops *xgbe_a0_get_dcbnl_ops(void); ++#endif ++ ++int xgbe_a0_mdio_register(struct xgbe_prv_data *); ++void xgbe_a0_mdio_unregister(struct xgbe_prv_data *); ++void xgbe_a0_dump_phy_registers(struct xgbe_prv_data *); ++void xgbe_a0_ptp_register(struct xgbe_prv_data *); ++void xgbe_a0_ptp_unregister(struct xgbe_prv_data *); ++void xgbe_a0_dump_tx_desc(struct xgbe_ring *, unsigned int, unsigned int, ++ unsigned int); ++void xgbe_a0_dump_rx_desc(struct xgbe_ring *, struct xgbe_ring_desc *, ++ unsigned int); ++void xgbe_a0_print_pkt(struct net_device *, struct sk_buff *, bool); ++void xgbe_a0_get_all_hw_features(struct xgbe_prv_data *); ++int xgbe_a0_powerup(struct net_device *, unsigned int); ++int xgbe_a0_powerdown(struct net_device *, unsigned int); ++void xgbe_a0_init_rx_coalesce(struct xgbe_prv_data *); ++void xgbe_a0_init_tx_coalesce(struct xgbe_prv_data *); ++ ++#ifdef CONFIG_DEBUG_FS ++void xgbe_a0_debugfs_init(struct xgbe_prv_data *); ++void xgbe_a0_debugfs_exit(struct xgbe_prv_data *); ++#else ++static inline void xgbe_a0_debugfs_init(struct xgbe_prv_data *pdata) {} ++static inline void xgbe_a0_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_a0_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 +-- +2.1.0 + |