/* * Copyright (c) 2017 Hisilicon Limited. * * This program is free software; you can redistribute it 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. * */ #include "hisi_sas.h" #define DRV_NAME "hisi_sas_v3_hw" /* global registers need init*/ #define DLVRY_QUEUE_ENABLE 0x0 #define IOST_BASE_ADDR_LO 0x8 #define IOST_BASE_ADDR_HI 0xc #define ITCT_BASE_ADDR_LO 0x10 #define ITCT_BASE_ADDR_HI 0x14 #define IO_BROKEN_MSG_ADDR_LO 0x18 #define IO_BROKEN_MSG_ADDR_HI 0x1c #define PHY_CONTEXT 0x20 #define PHY_STATE 0x24 #define PHY_PORT_NUM_MA 0x28 #define PHY_CONN_RATE 0x30 #define AXI_AHB_CLK_CFG 0x3c #define AXI_USER1 0x48 #define AXI_USER2 0x4c #define IO_SATA_BROKEN_MSG_ADDR_LO 0x58 #define IO_SATA_BROKEN_MSG_ADDR_HI 0x5c #define SATA_INITI_D2H_STORE_ADDR_LO 0x60 #define SATA_INITI_D2H_STORE_ADDR_HI 0x64 #define CFG_MAX_TAG 0x68 #define HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL 0x84 #define HGC_SAS_TXFAIL_RETRY_CTRL 0x88 #define HGC_GET_ITV_TIME 0x90 #define DEVICE_MSG_WORK_MODE 0x94 #define OPENA_WT_CONTI_TIME 0x9c #define I_T_NEXUS_LOSS_TIME 0xa0 #define MAX_CON_TIME_LIMIT_TIME 0xa4 #define BUS_INACTIVE_LIMIT_TIME 0xa8 #define REJECT_TO_OPEN_LIMIT_TIME 0xac #define CFG_AGING_TIME 0xbc #define HGC_DFX_CFG2 0xc0 #define CFG_ABT_SET_QUERY_IPTT 0xd4 #define CFG_SET_ABORTED_IPTT_OFF 0 #define CFG_SET_ABORTED_IPTT_MSK (0xfff << CFG_SET_ABORTED_IPTT_OFF) #define CFG_1US_TIMER_TRSH 0xcc #define CHNL_INT_STATUS 0x148 #define INT_COAL_EN 0x19c #define OQ_INT_COAL_TIME 0x1a0 #define OQ_INT_COAL_CNT 0x1a4 #define ENT_INT_COAL_TIME 0x1a8 #define ENT_INT_COAL_CNT 0x1ac #define OQ_INT_SRC 0x1b0 #define OQ_INT_SRC_MSK 0x1b4 #define ENT_INT_SRC1 0x1b8 #define ENT_INT_SRC1_D2H_FIS_CH0_OFF 0 #define ENT_INT_SRC1_D2H_FIS_CH0_MSK (0x1 << ENT_INT_SRC1_D2H_FIS_CH0_OFF) #define ENT_INT_SRC1_D2H_FIS_CH1_OFF 8 #define ENT_INT_SRC1_D2H_FIS_CH1_MSK (0x1 << ENT_INT_SRC1_D2H_FIS_CH1_OFF) #define ENT_INT_SRC2 0x1bc #define ENT_INT_SRC3 0x1c0 #define ENT_INT_SRC3_WP_DEPTH_OFF 8 #define ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF 9 #define ENT_INT_SRC3_RP_DEPTH_OFF 10 #define ENT_INT_SRC3_AXI_OFF 11 #define ENT_INT_SRC3_FIFO_OFF 12 #define ENT_INT_SRC3_LM_OFF 14 #define ENT_INT_SRC3_ITC_INT_OFF 15 #define ENT_INT_SRC3_ITC_INT_MSK (0x1 << ENT_INT_SRC3_ITC_INT_OFF) #define ENT_INT_SRC3_ABT_OFF 16 #define ENT_INT_SRC_MSK1 0x1c4 #define ENT_INT_SRC_MSK2 0x1c8 #define ENT_INT_SRC_MSK3 0x1cc #define ENT_INT_SRC_MSK3_ENT95_MSK_OFF 31 #define CHNL_PHYUPDOWN_INT_MSK 0x1d0 #define CHNL_ENT_INT_MSK 0x1d4 #define HGC_COM_INT_MSK 0x1d8 #define ENT_INT_SRC_MSK3_ENT95_MSK_MSK (0x1 << ENT_INT_SRC_MSK3_ENT95_MSK_OFF) #define SAS_ECC_INTR 0x1e8 #define SAS_ECC_INTR_MSK 0x1ec #define HGC_ERR_STAT_EN 0x238 #define DLVRY_Q_0_BASE_ADDR_LO 0x260 #define DLVRY_Q_0_BASE_ADDR_HI 0x264 #define DLVRY_Q_0_DEPTH 0x268 #define DLVRY_Q_0_WR_PTR 0x26c #define DLVRY_Q_0_RD_PTR 0x270 #define HYPER_STREAM_ID_EN_CFG 0xc80 #define OQ0_INT_SRC_MSK 0xc90 #define COMPL_Q_0_BASE_ADDR_LO 0x4e0 #define COMPL_Q_0_BASE_ADDR_HI 0x4e4 #define COMPL_Q_0_DEPTH 0x4e8 #define COMPL_Q_0_WR_PTR 0x4ec #define COMPL_Q_0_RD_PTR 0x4f0 #define AWQOS_AWCACHE_CFG 0xc84 #define ARQOS_ARCACHE_CFG 0xc88 /* phy registers requiring init */ #define PORT_BASE (0x2000) #define PHY_CFG (PORT_BASE + 0x0) #define HARD_PHY_LINKRATE (PORT_BASE + 0x4) #define PHY_CFG_ENA_OFF 0 #define PHY_CFG_ENA_MSK (0x1 << PHY_CFG_ENA_OFF) #define PHY_CFG_DC_OPT_OFF 2 #define PHY_CFG_DC_OPT_MSK (0x1 << PHY_CFG_DC_OPT_OFF) #define PROG_PHY_LINK_RATE (PORT_BASE + 0x8) #define PHY_CTRL (PORT_BASE + 0x14) #define PHY_CTRL_RESET_OFF 0 #define PHY_CTRL_RESET_MSK (0x1 << PHY_CTRL_RESET_OFF) #define SL_CFG (PORT_BASE + 0x84) #define SL_CONTROL (PORT_BASE + 0x94) #define SL_CONTROL_NOTIFY_EN_OFF 0 #define SL_CONTROL_NOTIFY_EN_MSK (0x1 << SL_CONTROL_NOTIFY_EN_OFF) #define SL_CTA_OFF 17 #define SL_CTA_MSK (0x1 << SL_CTA_OFF) #define TX_ID_DWORD0 (PORT_BASE + 0x9c) #define TX_ID_DWORD1 (PORT_BASE + 0xa0) #define TX_ID_DWORD2 (PORT_BASE + 0xa4) #define TX_ID_DWORD3 (PORT_BASE + 0xa8) #define TX_ID_DWORD4 (PORT_BASE + 0xaC) #define TX_ID_DWORD5 (PORT_BASE + 0xb0) #define TX_ID_DWORD6 (PORT_BASE + 0xb4) #define TXID_AUTO (PORT_BASE + 0xb8) #define CT3_OFF 1 #define CT3_MSK (0x1 << CT3_OFF) #define RX_IDAF_DWORD0 (PORT_BASE + 0xc4) #define RXOP_CHECK_CFG_H (PORT_BASE + 0xfc) #define SAS_SSP_CON_TIMER_CFG (PORT_BASE + 0x134) #define SAS_SMP_CON_TIMER_CFG (PORT_BASE + 0x138) #define SAS_STP_CON_TIMER_CFG (PORT_BASE + 0x13c) #define CHL_INT0 (PORT_BASE + 0x1b4) #define CHL_INT0_HOTPLUG_TOUT_OFF 0 #define CHL_INT0_HOTPLUG_TOUT_MSK (0x1 << CHL_INT0_HOTPLUG_TOUT_OFF) #define CHL_INT0_SL_RX_BCST_ACK_OFF 1 #define CHL_INT0_SL_RX_BCST_ACK_MSK (0x1 << CHL_INT0_SL_RX_BCST_ACK_OFF) #define CHL_INT0_SL_PHY_ENABLE_OFF 2 #define CHL_INT0_SL_PHY_ENABLE_MSK (0x1 << CHL_INT0_SL_PHY_ENABLE_OFF) #define CHL_INT0_NOT_RDY_OFF 4 #define CHL_INT0_NOT_RDY_MSK (0x1 << CHL_INT0_NOT_RDY_OFF) #define CHL_INT0_PHY_RDY_OFF 5 #define CHL_INT0_PHY_RDY_MSK (0x1 << CHL_INT0_PHY_RDY_OFF) #define CHL_INT1 (PORT_BASE + 0x1b8) #define CHL_INT1_DMAC_TX_ECC_ERR_OFF 15 #define CHL_INT1_DMAC_TX_ECC_ERR_MSK (0x1 << CHL_INT1_DMAC_TX_ECC_ERR_OFF) #define CHL_INT1_DMAC_RX_ECC_ERR_OFF 17 #define CHL_INT1_DMAC_RX_ECC_ERR_MSK (0x1 << CHL_INT1_DMAC_RX_ECC_ERR_OFF) #define CHL_INT2 (PORT_BASE + 0x1bc) #define CHL_INT0_MSK (PORT_BASE + 0x1c0) #define CHL_INT1_MSK (PORT_BASE + 0x1c4) #define CHL_INT2_MSK (PORT_BASE + 0x1c8) #define CHL_INT_COAL_EN (PORT_BASE + 0x1d0) #define PHY_CTRL_RDY_MSK (PORT_BASE + 0x2b0) #define PHYCTRL_NOT_RDY_MSK (PORT_BASE + 0x2b4) #define PHYCTRL_DWS_RESET_MSK (PORT_BASE + 0x2b8) #define PHYCTRL_PHY_ENA_MSK (PORT_BASE + 0x2bc) #define SL_RX_BCAST_CHK_MSK (PORT_BASE + 0x2c0) #define PHYCTRL_OOB_RESTART_MSK (PORT_BASE + 0x2c4) /* HW dma structures */ /* Delivery queue header */ /* dw0 */ #define CMD_HDR_RESP_REPORT_OFF 5 #define CMD_HDR_RESP_REPORT_MSK (0x1 << CMD_HDR_RESP_REPORT_OFF) #define CMD_HDR_TLR_CTRL_OFF 6 #define CMD_HDR_TLR_CTRL_MSK (0x3 << CMD_HDR_TLR_CTRL_OFF) #define CMD_HDR_PORT_OFF 18 #define CMD_HDR_PORT_MSK (0xf << CMD_HDR_PORT_OFF) #define CMD_HDR_PRIORITY_OFF 27 #define CMD_HDR_PRIORITY_MSK (0x1 << CMD_HDR_PRIORITY_OFF) #define CMD_HDR_CMD_OFF 29 #define CMD_HDR_CMD_MSK (0x7 << CMD_HDR_CMD_OFF) /* dw1 */ #define CMD_HDR_UNCON_CMD_OFF 3 #define CMD_HDR_DIR_OFF 5 #define CMD_HDR_DIR_MSK (0x3 << CMD_HDR_DIR_OFF) #define CMD_HDR_RESET_OFF 7 #define CMD_HDR_RESET_MSK (0x1 << CMD_HDR_RESET_OFF) #define CMD_HDR_VDTL_OFF 10 #define CMD_HDR_VDTL_MSK (0x1 << CMD_HDR_VDTL_OFF) #define CMD_HDR_FRAME_TYPE_OFF 11 #define CMD_HDR_FRAME_TYPE_MSK (0x1f << CMD_HDR_FRAME_TYPE_OFF) #define CMD_HDR_DEV_ID_OFF 16 #define CMD_HDR_DEV_ID_MSK (0xffff << CMD_HDR_DEV_ID_OFF) /* dw2 */ #define CMD_HDR_CFL_OFF 0 #define CMD_HDR_CFL_MSK (0x1ff << CMD_HDR_CFL_OFF) #define CMD_HDR_NCQ_TAG_OFF 10 #define CMD_HDR_NCQ_TAG_MSK (0x1f << CMD_HDR_NCQ_TAG_OFF) #define CMD_HDR_MRFL_OFF 15 #define CMD_HDR_MRFL_MSK (0x1ff << CMD_HDR_MRFL_OFF) #define CMD_HDR_SG_MOD_OFF 24 #define CMD_HDR_SG_MOD_MSK (0x3 << CMD_HDR_SG_MOD_OFF) /* dw3 */ #define CMD_HDR_IPTT_OFF 0 #define CMD_HDR_IPTT_MSK (0xffff << CMD_HDR_IPTT_OFF) /* dw6 */ #define CMD_HDR_DIF_SGL_LEN_OFF 0 #define CMD_HDR_DIF_SGL_LEN_MSK (0xffff << CMD_HDR_DIF_SGL_LEN_OFF) #define CMD_HDR_DATA_SGL_LEN_OFF 16 #define CMD_HDR_DATA_SGL_LEN_MSK (0xffff << CMD_HDR_DATA_SGL_LEN_OFF) /* Completion header */ /* dw0 */ #define CMPLT_HDR_CMPLT_OFF 0 #define CMPLT_HDR_CMPLT_MSK (0x3 << CMPLT_HDR_CMPLT_OFF) #define CMPLT_HDR_ERROR_PHASE_OFF 2 #define CMPLT_HDR_ERROR_PHASE_MSK (0xff << CMPLT_HDR_ERROR_PHASE_OFF) #define CMPLT_HDR_RSPNS_XFRD_OFF 10 #define CMPLT_HDR_RSPNS_XFRD_MSK (0x1 << CMPLT_HDR_RSPNS_XFRD_OFF) #define CMPLT_HDR_ERX_OFF 12 #define CMPLT_HDR_ERX_MSK (0x1 << CMPLT_HDR_ERX_OFF) #define CMPLT_HDR_ABORT_STAT_OFF 13 #define CMPLT_HDR_ABORT_STAT_MSK (0x7 << CMPLT_HDR_ABORT_STAT_OFF) /* abort_stat */ #define STAT_IO_NOT_VALID 0x1 #define STAT_IO_NO_DEVICE 0x2 #define STAT_IO_COMPLETE 0x3 #define STAT_IO_ABORTED 0x4 /* dw1 */ #define CMPLT_HDR_IPTT_OFF 0 #define CMPLT_HDR_IPTT_MSK (0xffff << CMPLT_HDR_IPTT_OFF) #define CMPLT_HDR_DEV_ID_OFF 16 #define CMPLT_HDR_DEV_ID_MSK (0xffff << CMPLT_HDR_DEV_ID_OFF) /* dw3 */ #define CMPLT_HDR_IO_IN_TARGET_OFF 17 #define CMPLT_HDR_IO_IN_TARGET_MSK (0x1 << CMPLT_HDR_IO_IN_TARGET_OFF) struct hisi_sas_complete_v3_hdr { __le32 dw0; __le32 dw1; __le32 act; __le32 dw3; }; struct hisi_sas_err_record_v3 { /* dw0 */ __le32 trans_tx_fail_type; /* dw1 */ __le32 trans_rx_fail_type; /* dw2 */ __le16 dma_tx_err_type; __le16 sipc_rx_err_type; /* dw3 */ __le32 dma_rx_err_type; }; #define RX_DATA_LEN_UNDERFLOW_OFF 6 #define RX_DATA_LEN_UNDERFLOW_MSK (1 << RX_DATA_LEN_UNDERFLOW_OFF) #define HISI_SAS_COMMAND_ENTRIES_V3_HW 4096 #define HISI_SAS_MSI_COUNT_V3_HW 32 enum { HISI_SAS_PHY_PHY_UPDOWN, HISI_SAS_PHY_CHNL_INT, HISI_SAS_PHY_INT_NR }; #define DIR_NO_DATA 0 #define DIR_TO_INI 1 #define DIR_TO_DEVICE 2 #define DIR_RESERVED 3 #define CMD_IS_UNCONSTRAINT(cmd) \ ((cmd == ATA_CMD_READ_LOG_EXT) || \ (cmd == ATA_CMD_READ_LOG_DMA_EXT) || \ (cmd == ATA_CMD_DEV_RESET)) static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off) { void __iomem *regs = hisi_hba->regs + off; return readl(regs); } static u32 hisi_sas_read32_relaxed(struct hisi_hba *hisi_hba, u32 off) { void __iomem *regs = hisi_hba->regs + off; return readl_relaxed(regs); } static void hisi_sas_write32(struct hisi_hba *hisi_hba, u32 off, u32 val) { void __iomem *regs = hisi_hba->regs + off; writel(val, regs); } static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba, int phy_no, u32 off, u32 val) { void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off; writel(val, regs); } static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba, int phy_no, u32 off) { void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off; return readl(regs); } static void init_reg_v3_hw(struct hisi_hba *hisi_hba) { int i; /* Global registers init */ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, (u32)((1ULL << hisi_hba->queue_count) - 1)); hisi_sas_write32(hisi_hba, AXI_USER1, 0x0); hisi_sas_write32(hisi_hba, AXI_USER2, 0x40000060); hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x108); hisi_sas_write32(hisi_hba, CFG_1US_TIMER_TRSH, 0xd); hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x1); hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x1); hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x1); hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffff); hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff); hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff); hisi_sas_write32(hisi_hba, ENT_INT_SRC3, 0xffffffff); hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0xfefefefe); hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0xfefefefe); hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0xffffffff); hisi_sas_write32(hisi_hba, CHNL_PHYUPDOWN_INT_MSK, 0x0); hisi_sas_write32(hisi_hba, CHNL_ENT_INT_MSK, 0x0); hisi_sas_write32(hisi_hba, HGC_COM_INT_MSK, 0x0); hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xfff00c30); hisi_sas_write32(hisi_hba, AWQOS_AWCACHE_CFG, 0xf0f0); hisi_sas_write32(hisi_hba, ARQOS_ARCACHE_CFG, 0xf0f0); for (i = 0; i < hisi_hba->queue_count; i++) hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK+0x4*i, 0); hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 1); hisi_sas_write32(hisi_hba, HYPER_STREAM_ID_EN_CFG, 1); hisi_sas_write32(hisi_hba, CFG_MAX_TAG, 0xfff07fff); for (i = 0; i < hisi_hba->n_phy; i++) { hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, 0x801); hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, 0xffffffff); hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, 0xffffffff); hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, 0xffffffff); hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000); hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xffffffff); hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8ffffbff); hisi_sas_phy_write32(hisi_hba, i, SL_CFG, 0x83f801fc); hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL_RDY_MSK, 0x0); hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x0); hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_DWS_RESET_MSK, 0x0); hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_PHY_ENA_MSK, 0x0); hisi_sas_phy_write32(hisi_hba, i, SL_RX_BCAST_CHK_MSK, 0x0); hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_OOB_RESTART_MSK, 0x0); hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, 0x199b4fa); hisi_sas_phy_write32(hisi_hba, i, SAS_SSP_CON_TIMER_CFG, 0xa0064); hisi_sas_phy_write32(hisi_hba, i, SAS_STP_CON_TIMER_CFG, 0xa0064); } for (i = 0; i < hisi_hba->queue_count; i++) { /* Delivery queue */ hisi_sas_write32(hisi_hba, DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14), upper_32_bits(hisi_hba->cmd_hdr_dma[i])); hisi_sas_write32(hisi_hba, DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14), lower_32_bits(hisi_hba->cmd_hdr_dma[i])); hisi_sas_write32(hisi_hba, DLVRY_Q_0_DEPTH + (i * 0x14), HISI_SAS_QUEUE_SLOTS); /* Completion queue */ hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_HI + (i * 0x14), upper_32_bits(hisi_hba->complete_hdr_dma[i])); hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_LO + (i * 0x14), lower_32_bits(hisi_hba->complete_hdr_dma[i])); hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14), HISI_SAS_QUEUE_SLOTS); } /* itct */ hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO, lower_32_bits(hisi_hba->itct_dma)); hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI, upper_32_bits(hisi_hba->itct_dma)); /* iost */ hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO, lower_32_bits(hisi_hba->iost_dma)); hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI, upper_32_bits(hisi_hba->iost_dma)); /* breakpoint */ hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_LO, lower_32_bits(hisi_hba->breakpoint_dma)); hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_HI, upper_32_bits(hisi_hba->breakpoint_dma)); /* SATA broken msg */ hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_LO, lower_32_bits(hisi_hba->sata_breakpoint_dma)); hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_HI, upper_32_bits(hisi_hba->sata_breakpoint_dma)); /* SATA initial fis */ hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_LO, lower_32_bits(hisi_hba->initial_fis_dma)); hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_HI, upper_32_bits(hisi_hba->initial_fis_dma)); } static void config_phy_opt_mode_v3_hw(struct hisi_hba *hisi_hba, int phy_no) { u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG); cfg &= ~PHY_CFG_DC_OPT_MSK; cfg |= 1 << PHY_CFG_DC_OPT_OFF; hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); } static void config_id_frame_v3_hw(struct hisi_hba *hisi_hba, int phy_no) { struct sas_identify_frame identify_frame; u32 *identify_buffer; memset(&identify_frame, 0, sizeof(identify_frame)); identify_frame.dev_type = SAS_END_DEVICE; identify_frame.frame_type = 0; identify_frame._un1 = 1; identify_frame.initiator_bits = SAS_PROTOCOL_ALL; identify_frame.target_bits = SAS_PROTOCOL_NONE; memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE); memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr, SAS_ADDR_SIZE); identify_frame.phy_id = phy_no; identify_buffer = (u32 *)(&identify_frame); hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0, __swab32(identify_buffer[0])); hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1, __swab32(identify_buffer[1])); hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2, __swab32(identify_buffer[2])); hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3, __swab32(identify_buffer[3])); hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4, __swab32(identify_buffer[4])); hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5, __swab32(identify_buffer[5])); } static int hw_init_v3_hw(struct hisi_hba *hisi_hba) { init_reg_v3_hw(hisi_hba); return 0; } static void enable_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no) { u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG); cfg |= PHY_CFG_ENA_MSK; hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); } static void start_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no) { config_id_frame_v3_hw(hisi_hba, phy_no); config_phy_opt_mode_v3_hw(hisi_hba, phy_no); enable_phy_v3_hw(hisi_hba, phy_no); } static void start_phys_v3_hw(struct hisi_hba *hisi_hba) { int i; for (i = 0; i < hisi_hba->n_phy; i++) start_phy_v3_hw(hisi_hba, i); } static void phys_init_v3_hw(struct hisi_hba *hisi_hba) { start_phys_v3_hw(hisi_hba); } static void sl_notify_v3_hw(struct hisi_hba *hisi_hba, int phy_no) { u32 sl_control; sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL); sl_control |= SL_CONTROL_NOTIFY_EN_MSK; hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control); msleep(1); sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL); sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK; hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control); } /** * The callpath to this function and upto writing the write * queue pointer should be safe from interruption. */ static int get_free_slot_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_dq *dq) { struct device *dev = hisi_hba->dev; int queue = dq->id; u32 r, w; w = dq->wr_point; r = hisi_sas_read32_relaxed(hisi_hba, DLVRY_Q_0_RD_PTR + (queue * 0x14)); if (r == (w+1) % HISI_SAS_QUEUE_SLOTS) { dev_warn(dev, "full queue=%d r=%d w=%d\n\n", queue, r, w); return -EAGAIN; } return 0; } static void start_delivery_v3_hw(struct hisi_sas_dq *dq) { struct hisi_hba *hisi_hba = dq->hisi_hba; int dlvry_queue = dq->slot_prep->dlvry_queue; int dlvry_queue_slot = dq->slot_prep->dlvry_queue_slot; dq->wr_point = ++dlvry_queue_slot % HISI_SAS_QUEUE_SLOTS; hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14), dq->wr_point); } static int prep_prd_sge_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot, struct hisi_sas_cmd_hdr *hdr, struct scatterlist *scatter, int n_elem) { struct device *dev = hisi_hba->dev; struct scatterlist *sg; int i; if (n_elem > HISI_SAS_SGE_PAGE_CNT) { dev_err(dev, "prd err: n_elem(%d) > HISI_SAS_SGE_PAGE_CNT", n_elem); return -EINVAL; } slot->sge_page = dma_pool_alloc(hisi_hba->sge_page_pool, GFP_ATOMIC, &slot->sge_page_dma); if (!slot->sge_page) return -ENOMEM; for_each_sg(scatter, sg, n_elem, i) { struct hisi_sas_sge *entry = &slot->sge_page->sge[i]; entry->addr = cpu_to_le64(sg_dma_address(sg)); entry->page_ctrl_0 = entry->page_ctrl_1 = 0; entry->data_len = cpu_to_le32(sg_dma_len(sg)); entry->data_off = 0; } hdr->prd_table_addr = cpu_to_le64(slot->sge_page_dma); hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF); return 0; } static int prep_ssp_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot, int is_tmf, struct hisi_sas_tmf_task *tmf) { struct sas_task *task = slot->task; struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr; struct domain_device *device = task->dev; struct hisi_sas_device *sas_dev = device->lldd_dev; struct hisi_sas_port *port = slot->port; struct sas_ssp_task *ssp_task = &task->ssp_task; struct scsi_cmnd *scsi_cmnd = ssp_task->cmd; int has_data = 0, rc, priority = is_tmf; u8 *buf_cmd; u32 dw1 = 0, dw2 = 0; hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) | (2 << CMD_HDR_TLR_CTRL_OFF) | (port->id << CMD_HDR_PORT_OFF) | (priority << CMD_HDR_PRIORITY_OFF) | (1 << CMD_HDR_CMD_OFF)); /* ssp */ dw1 = 1 << CMD_HDR_VDTL_OFF; if (is_tmf) { dw1 |= 2 << CMD_HDR_FRAME_TYPE_OFF; dw1 |= DIR_NO_DATA << CMD_HDR_DIR_OFF; } else { dw1 |= 1 << CMD_HDR_FRAME_TYPE_OFF; switch (scsi_cmnd->sc_data_direction) { case DMA_TO_DEVICE: has_data = 1; dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF; break; case DMA_FROM_DEVICE: has_data = 1; dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF; break; default: dw1 &= ~CMD_HDR_DIR_MSK; } } /* map itct entry */ dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF; hdr->dw1 = cpu_to_le32(dw1); dw2 = (((sizeof(struct ssp_command_iu) + sizeof(struct ssp_frame_hdr) + 3) / 4) << CMD_HDR_CFL_OFF) | ((HISI_SAS_MAX_SSP_RESP_SZ / 4) << CMD_HDR_MRFL_OFF) | (2 << CMD_HDR_SG_MOD_OFF); hdr->dw2 = cpu_to_le32(dw2); hdr->transfer_tags = cpu_to_le32(slot->idx); if (has_data) { rc = prep_prd_sge_v3_hw(hisi_hba, slot, hdr, task->scatter, slot->n_elem); if (rc) return rc; } hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len); hdr->cmd_table_addr = cpu_to_le64(slot->command_table_dma); hdr->sts_buffer_addr = cpu_to_le64(slot->status_buffer_dma); buf_cmd = slot->command_table + sizeof(struct ssp_frame_hdr); memcpy(buf_cmd, ssp_task->LUN, 8); if (!is_tmf) { buf_cmd[9] = ssp_task->task_attr | (ssp_task->task_prio << 3); memcpy(buf_cmd + 12, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); } else { buf_cmd[10] = tmf->tmf; switch (tmf->tmf) { case TMF_ABORT_TASK: case TMF_QUERY_TASK: buf_cmd[12] = (tmf->tag_of_task_to_be_managed >> 8) & 0xff; buf_cmd[13] = tmf->tag_of_task_to_be_managed & 0xff; break; default: break; } } return 0; } static int prep_smp_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot) { struct sas_task *task = slot->task; struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr; struct domain_device *device = task->dev; struct device *dev = hisi_hba->dev; struct hisi_sas_port *port = slot->port; struct scatterlist *sg_req, *sg_resp; struct hisi_sas_device *sas_dev = device->lldd_dev; dma_addr_t req_dma_addr; unsigned int req_len, resp_len; int elem, rc; /* * DMA-map SMP request, response buffers */ /* req */ sg_req = &task->smp_task.smp_req; elem = dma_map_sg(dev, sg_req, 1, DMA_TO_DEVICE); if (!elem) return -ENOMEM; req_len = sg_dma_len(sg_req); req_dma_addr = sg_dma_address(sg_req); /* resp */ sg_resp = &task->smp_task.smp_resp; elem = dma_map_sg(dev, sg_resp, 1, DMA_FROM_DEVICE); if (!elem) { rc = -ENOMEM; goto err_out_req; } resp_len = sg_dma_len(sg_resp); if ((req_len & 0x3) || (resp_len & 0x3)) { rc = -EINVAL; goto err_out_resp; } /* create header */ /* dw0 */ hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) | (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */ (2 << CMD_HDR_CMD_OFF)); /* smp */ /* map itct entry */ hdr->dw1 = cpu_to_le32((sas_dev->device_id << CMD_HDR_DEV_ID_OFF) | (1 << CMD_HDR_FRAME_TYPE_OFF) | (DIR_NO_DATA << CMD_HDR_DIR_OFF)); /* dw2 */ hdr->dw2 = cpu_to_le32((((req_len - 4) / 4) << CMD_HDR_CFL_OFF) | (HISI_SAS_MAX_SMP_RESP_SZ / 4 << CMD_HDR_MRFL_OFF)); hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF); hdr->cmd_table_addr = cpu_to_le64(req_dma_addr); hdr->sts_buffer_addr = cpu_to_le64(slot->status_buffer_dma); return 0; err_out_resp: dma_unmap_sg(dev, &slot->task->smp_task.smp_resp, 1, DMA_FROM_DEVICE); err_out_req: dma_unmap_sg(dev, &slot->task->smp_task.smp_req, 1, DMA_TO_DEVICE); return rc; } static int get_ncq_tag_v3_hw(struct sas_task *task, u32 *tag) { struct ata_queued_cmd *qc = task->uldd_task; if (qc) { if (qc->tf.command == ATA_CMD_FPDMA_WRITE || qc->tf.command == ATA_CMD_FPDMA_READ) { *tag = qc->tag; return 1; } } return 0; } static int prep_ata_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot) { struct sas_task *task = slot->task; struct domain_device *device = task->dev; struct domain_device *parent_dev = device->parent; struct hisi_sas_device *sas_dev = device->lldd_dev; struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr; struct asd_sas_port *sas_port = device->port; struct hisi_sas_port *port = to_hisi_sas_port(sas_port); u8 *buf_cmd; int has_data = 0, rc = 0, hdr_tag = 0; u32 dw1 = 0, dw2 = 0; hdr->dw0 = cpu_to_le32(port->id << CMD_HDR_PORT_OFF); if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) hdr->dw0 |= cpu_to_le32(3 << CMD_HDR_CMD_OFF); else hdr->dw0 |= cpu_to_le32(4 << CMD_HDR_CMD_OFF); switch (task->data_dir) { case DMA_TO_DEVICE: has_data = 1; dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF; break; case DMA_FROM_DEVICE: has_data = 1; dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF; break; default: dw1 &= ~CMD_HDR_DIR_MSK; } if ((task->ata_task.fis.command == ATA_CMD_DEV_RESET) && (task->ata_task.fis.control & ATA_SRST)) dw1 |= 1 << CMD_HDR_RESET_OFF; dw1 |= (hisi_sas_get_ata_protocol( task->ata_task.fis.command, task->data_dir)) << CMD_HDR_FRAME_TYPE_OFF; dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF; if (CMD_IS_UNCONSTRAINT(task->ata_task.fis.command)) dw1 |= 1 << CMD_HDR_UNCON_CMD_OFF; hdr->dw1 = cpu_to_le32(dw1); /* dw2 */ if (task->ata_task.use_ncq && get_ncq_tag_v3_hw(task, &hdr_tag)) { task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3); dw2 |= hdr_tag << CMD_HDR_NCQ_TAG_OFF; } dw2 |= (HISI_SAS_MAX_STP_RESP_SZ / 4) << CMD_HDR_CFL_OFF | 2 << CMD_HDR_SG_MOD_OFF; hdr->dw2 = cpu_to_le32(dw2); /* dw3 */ hdr->transfer_tags = cpu_to_le32(slot->idx); if (has_data) { rc = prep_prd_sge_v3_hw(hisi_hba, slot, hdr, task->scatter, slot->n_elem); if (rc) return rc; } hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len); hdr->cmd_table_addr = cpu_to_le64(slot->command_table_dma); hdr->sts_buffer_addr = cpu_to_le64(slot->status_buffer_dma); buf_cmd = slot->command_table; if (likely(!task->ata_task.device_control_reg_update)) task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */ /* fill in command FIS */ memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis)); return 0; } static int phy_up_v3_hw(int phy_no, struct hisi_hba *hisi_hba) { int i, res = 0; u32 context, port_id, link_rate, hard_phy_linkrate; struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; struct asd_sas_phy *sas_phy = &phy->sas_phy; struct device *dev = hisi_hba->dev; hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 1); port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA); port_id = (port_id >> (4 * phy_no)) & 0xf; link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE); link_rate = (link_rate >> (phy_no * 4)) & 0xf; if (port_id == 0xf) { dev_err(dev, "phyup: phy%d invalid portid\n", phy_no); res = IRQ_NONE; goto end; } sas_phy->linkrate = link_rate; hard_phy_linkrate = hisi_sas_phy_read32(hisi_hba, phy_no, HARD_PHY_LINKRATE); phy->maximum_linkrate = hard_phy_linkrate & 0xf; phy->minimum_linkrate = (hard_phy_linkrate >> 4) & 0xf; phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA); /* Check for SATA dev */ context = hisi_sas_read32(hisi_hba, PHY_CONTEXT); if (context & (1 << phy_no)) { struct hisi_sas_initial_fis *initial_fis; struct dev_to_host_fis *fis; u8 attached_sas_addr[SAS_ADDR_SIZE] = {0}; dev_info(dev, "phyup: phy%d link_rate=%d\n", phy_no, link_rate); initial_fis = &hisi_hba->initial_fis[phy_no]; fis = &initial_fis->fis; sas_phy->oob_mode = SATA_OOB_MODE; attached_sas_addr[0] = 0x50; attached_sas_addr[7] = phy_no; memcpy(sas_phy->attached_sas_addr, attached_sas_addr, SAS_ADDR_SIZE); memcpy(sas_phy->frame_rcvd, fis, sizeof(struct dev_to_host_fis)); phy->phy_type |= PORT_TYPE_SATA; phy->identify.device_type = SAS_SATA_DEV; phy->frame_rcvd_size = sizeof(struct dev_to_host_fis); phy->identify.target_port_protocols = SAS_PROTOCOL_SATA; } else { u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd; struct sas_identify_frame *id = (struct sas_identify_frame *)frame_rcvd; dev_info(dev, "phyup: phy%d link_rate=%d\n", phy_no, link_rate); for (i = 0; i < 6; i++) { u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no, RX_IDAF_DWORD0 + (i * 4)); frame_rcvd[i] = __swab32(idaf); } sas_phy->oob_mode = SAS_OOB_MODE; memcpy(sas_phy->attached_sas_addr, &id->sas_addr, SAS_ADDR_SIZE); phy->phy_type |= PORT_TYPE_SAS; phy->identify.device_type = id->dev_type; phy->frame_rcvd_size = sizeof(struct sas_identify_frame); if (phy->identify.device_type == SAS_END_DEVICE) phy->identify.target_port_protocols = SAS_PROTOCOL_SSP; else if (phy->identify.device_type != SAS_PHY_UNUSED) phy->identify.target_port_protocols = SAS_PROTOCOL_SMP; } phy->port_id = port_id; phy->phy_attached = 1; queue_work(hisi_hba->wq, &phy->phyup_ws); end: hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_SL_PHY_ENABLE_MSK); hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 0); return res; } static int phy_down_v3_hw(int phy_no, struct hisi_hba *hisi_hba) { int res = 0; u32 phy_state, sl_ctrl, txid_auto; struct device *dev = hisi_hba->dev; hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 1); phy_state = hisi_sas_read32(hisi_hba, PHY_STATE); dev_info(dev, "phydown: phy%d phy_state=0x%x\n", phy_no, phy_state); hisi_sas_phy_down(hisi_hba, phy_no, (phy_state & 1 << phy_no) ? 1 : 0); sl_ctrl = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL); hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_ctrl&(~SL_CTA_MSK)); txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO); hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO, txid_auto | CT3_MSK); hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK); hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0); return res; } static void phy_bcast_v3_hw(int phy_no, struct hisi_hba *hisi_hba) { struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; struct asd_sas_phy *sas_phy = &phy->sas_phy; struct sas_ha_struct *sas_ha = &hisi_hba->sha; hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 1); sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD); hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_SL_RX_BCST_ACK_MSK); hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0); } static irqreturn_t int_phy_up_down_bcast_v3_hw(int irq_no, void *p) { struct hisi_hba *hisi_hba = p; u32 irq_msk; int phy_no = 0; irqreturn_t res = IRQ_NONE; irq_msk = hisi_sas_read32(hisi_hba, CHNL_INT_STATUS) & 0x11111111; while (irq_msk) { if (irq_msk & 1) { u32 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0); u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE); int rdy = phy_state & (1 << phy_no); if (rdy) { if (irq_value & CHL_INT0_SL_PHY_ENABLE_MSK) /* phy up */ if (phy_up_v3_hw(phy_no, hisi_hba) == IRQ_HANDLED) res = IRQ_HANDLED; if (irq_value & CHL_INT0_SL_RX_BCST_ACK_MSK) /* phy bcast */ phy_bcast_v3_hw(phy_no, hisi_hba); } else { if (irq_value & CHL_INT0_NOT_RDY_MSK) /* phy down */ if (phy_down_v3_hw(phy_no, hisi_hba) == IRQ_HANDLED) res = IRQ_HANDLED; } } irq_msk >>= 4; phy_no++; } return res; } static irqreturn_t int_chnl_int_v3_hw(int irq_no, void *p) { struct hisi_hba *hisi_hba = p; struct device *dev = hisi_hba->dev; u32 ent_msk, ent_tmp, irq_msk; int phy_no = 0; ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3); ent_tmp = ent_msk; ent_msk |= ENT_INT_SRC_MSK3_ENT95_MSK_MSK; hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_msk); irq_msk = hisi_sas_read32(hisi_hba, CHNL_INT_STATUS) & 0xeeeeeeee; while (irq_msk) { u32 irq_value0 = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0); u32 irq_value1 = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT1); u32 irq_value2 = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2); if ((irq_msk & (4 << (phy_no * 4))) && irq_value1) { if (irq_value1 & (CHL_INT1_DMAC_RX_ECC_ERR_MSK | CHL_INT1_DMAC_TX_ECC_ERR_MSK)) panic("%s: DMAC RX/TX ecc bad error! (0x%x)", dev_name(dev), irq_value1); hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT1, irq_value1); } if (irq_msk & (8 << (phy_no * 4)) && irq_value2) hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2, irq_value2); if (irq_msk & (2 << (phy_no * 4)) && irq_value0) { hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, irq_value0 & (~CHL_INT0_HOTPLUG_TOUT_MSK) & (~CHL_INT0_SL_PHY_ENABLE_MSK) & (~CHL_INT0_NOT_RDY_MSK)); } irq_msk &= ~(0xe << (phy_no * 4)); phy_no++; } hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_tmp); return IRQ_HANDLED; } static void slot_err_v3_hw(struct hisi_hba *hisi_hba, struct sas_task *task, struct hisi_sas_slot *slot) { struct task_status_struct *ts = &task->task_status; struct hisi_sas_complete_v3_hdr *complete_queue = hisi_hba->complete_hdr[slot->cmplt_queue]; struct hisi_sas_complete_v3_hdr *complete_hdr = &complete_queue[slot->cmplt_queue_slot]; struct hisi_sas_err_record_v3 *record = slot->status_buffer; u32 dma_rx_err_type = record->dma_rx_err_type; u32 trans_tx_fail_type = record->trans_tx_fail_type; switch (task->task_proto) { case SAS_PROTOCOL_SSP: if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) { ts->residual = trans_tx_fail_type; ts->stat = SAS_DATA_UNDERRUN; } else if (complete_hdr->dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) { ts->stat = SAS_QUEUE_FULL; slot->abort = 1; } else { ts->stat = SAS_OPEN_REJECT; ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; } break; case SAS_PROTOCOL_SATA: case SAS_PROTOCOL_STP: case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) { ts->residual = trans_tx_fail_type; ts->stat = SAS_DATA_UNDERRUN; } else if (complete_hdr->dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) { ts->stat = SAS_PHY_DOWN; slot->abort = 1; } else { ts->stat = SAS_OPEN_REJECT; ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; } hisi_sas_sata_done(task, slot); break; case SAS_PROTOCOL_SMP: ts->stat = SAM_STAT_CHECK_CONDITION; break; default: break; } } static int slot_complete_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot) { struct sas_task *task = slot->task; struct hisi_sas_device *sas_dev; struct device *dev = hisi_hba->dev; struct task_status_struct *ts; struct domain_device *device; enum exec_status sts; struct hisi_sas_complete_v3_hdr *complete_queue = hisi_hba->complete_hdr[slot->cmplt_queue]; struct hisi_sas_complete_v3_hdr *complete_hdr = &complete_queue[slot->cmplt_queue_slot]; int aborted; unsigned long flags; if (unlikely(!task || !task->lldd_task || !task->dev)) return -EINVAL; ts = &task->task_status; device = task->dev; sas_dev = device->lldd_dev; spin_lock_irqsave(&task->task_state_lock, flags); aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED; task->task_state_flags &= ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); spin_unlock_irqrestore(&task->task_state_lock, flags); memset(ts, 0, sizeof(*ts)); ts->resp = SAS_TASK_COMPLETE; if (unlikely(aborted)) { ts->stat = SAS_ABORTED_TASK; hisi_sas_slot_task_free(hisi_hba, task, slot); return -1; } if (unlikely(!sas_dev)) { dev_dbg(dev, "slot complete: port has not device\n"); ts->stat = SAS_PHY_DOWN; goto out; } /* * Use SAS+TMF status codes */ switch ((complete_hdr->dw0 & CMPLT_HDR_ABORT_STAT_MSK) >> CMPLT_HDR_ABORT_STAT_OFF) { case STAT_IO_ABORTED: /* this IO has been aborted by abort command */ ts->stat = SAS_ABORTED_TASK; goto out; case STAT_IO_COMPLETE: /* internal abort command complete */ ts->stat = TMF_RESP_FUNC_SUCC; goto out; case STAT_IO_NO_DEVICE: ts->stat = TMF_RESP_FUNC_COMPLETE; goto out; case STAT_IO_NOT_VALID: /* * abort single IO, the controller can't find the IO */ ts->stat = TMF_RESP_FUNC_FAILED; goto out; default: break; } /* check for erroneous completion */ if ((complete_hdr->dw0 & CMPLT_HDR_CMPLT_MSK) == 0x3) { slot_err_v3_hw(hisi_hba, task, slot); if (unlikely(slot->abort)) return ts->stat; goto out; } switch (task->task_proto) { case SAS_PROTOCOL_SSP: { struct ssp_response_iu *iu = slot->status_buffer + sizeof(struct hisi_sas_err_record); sas_ssp_task_response(dev, task, iu); break; } case SAS_PROTOCOL_SMP: { struct scatterlist *sg_resp = &task->smp_task.smp_resp; void *to; ts->stat = SAM_STAT_GOOD; to = kmap_atomic(sg_page(sg_resp)); dma_unmap_sg(dev, &task->smp_task.smp_resp, 1, DMA_FROM_DEVICE); dma_unmap_sg(dev, &task->smp_task.smp_req, 1, DMA_TO_DEVICE); memcpy(to + sg_resp->offset, slot->status_buffer + sizeof(struct hisi_sas_err_record), sg_dma_len(sg_resp)); kunmap_atomic(to); break; } case SAS_PROTOCOL_SATA: case SAS_PROTOCOL_STP: case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: ts->stat = SAM_STAT_GOOD; hisi_sas_sata_done(task, slot); break; default: ts->stat = SAM_STAT_CHECK_CONDITION; break; } if (!slot->port->port_attached) { dev_err(dev, "slot complete: port %d has removed\n", slot->port->sas_port.id); ts->stat = SAS_PHY_DOWN; } out: spin_lock_irqsave(&task->task_state_lock, flags); task->task_state_flags |= SAS_TASK_STATE_DONE; spin_unlock_irqrestore(&task->task_state_lock, flags); spin_lock_irqsave(&hisi_hba->lock, flags); hisi_sas_slot_task_free(hisi_hba, task, slot); spin_unlock_irqrestore(&hisi_hba->lock, flags); sts = ts->stat; if (task->task_done) task->task_done(task); return sts; } static void cq_tasklet_v3_hw(unsigned long val) { struct hisi_sas_cq *cq = (struct hisi_sas_cq *)val; struct hisi_hba *hisi_hba = cq->hisi_hba; struct hisi_sas_slot *slot; struct hisi_sas_itct *itct; struct hisi_sas_complete_v3_hdr *complete_queue; u32 rd_point = cq->rd_point, wr_point, dev_id; int queue = cq->id; struct hisi_sas_dq *dq = &hisi_hba->dq[queue]; complete_queue = hisi_hba->complete_hdr[queue]; spin_lock(&dq->lock); wr_point = hisi_sas_read32(hisi_hba, COMPL_Q_0_WR_PTR + (0x14 * queue)); while (rd_point != wr_point) { struct hisi_sas_complete_v3_hdr *complete_hdr; int iptt; complete_hdr = &complete_queue[rd_point]; /* Check for NCQ completion */ if (complete_hdr->act) { u32 act_tmp = complete_hdr->act; int ncq_tag_count = ffs(act_tmp); dev_id = (complete_hdr->dw1 & CMPLT_HDR_DEV_ID_MSK) >> CMPLT_HDR_DEV_ID_OFF; itct = &hisi_hba->itct[dev_id]; /* The NCQ tags are held in the itct header */ while (ncq_tag_count) { __le64 *ncq_tag = &itct->qw4_15[0]; ncq_tag_count -= 1; iptt = (ncq_tag[ncq_tag_count / 5] >> (ncq_tag_count % 5) * 12) & 0xfff; slot = &hisi_hba->slot_info[iptt]; slot->cmplt_queue_slot = rd_point; slot->cmplt_queue = queue; slot_complete_v3_hw(hisi_hba, slot); act_tmp &= ~(1 << ncq_tag_count); ncq_tag_count = ffs(act_tmp); } } else { iptt = (complete_hdr->dw1) & CMPLT_HDR_IPTT_MSK; slot = &hisi_hba->slot_info[iptt]; slot->cmplt_queue_slot = rd_point; slot->cmplt_queue = queue; slot_complete_v3_hw(hisi_hba, slot); } if (++rd_point >= HISI_SAS_QUEUE_SLOTS) rd_point = 0; } /* update rd_point */ cq->rd_point = rd_point; hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point); spin_unlock(&dq->lock); } static irqreturn_t cq_interrupt_v3_hw(int irq_no, void *p) { struct hisi_sas_cq *cq = p; struct hisi_hba *hisi_hba = cq->hisi_hba; int queue = cq->id; hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue); tasklet_schedule(&cq->tasklet); return IRQ_HANDLED; } static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba) { struct device *dev = hisi_hba->dev; struct pci_dev *pdev = hisi_hba->pci_dev; int vectors, rc; int i, k; int max_msi = HISI_SAS_MSI_COUNT_V3_HW; vectors = pci_alloc_irq_vectors(hisi_hba->pci_dev, 1, max_msi, PCI_IRQ_MSI); if (vectors < max_msi) { dev_err(dev, "could not allocate all msi (%d)\n", vectors); return -ENOENT; } rc = devm_request_irq(dev, pci_irq_vector(pdev, 1), int_phy_up_down_bcast_v3_hw, 0, DRV_NAME " phy", hisi_hba); if (rc) { dev_err(dev, "could not request phy interrupt, rc=%d\n", rc); rc = -ENOENT; goto free_irq_vectors; } rc = devm_request_irq(dev, pci_irq_vector(pdev, 2), int_chnl_int_v3_hw, 0, DRV_NAME " channel", hisi_hba); if (rc) { dev_err(dev, "could not request chnl interrupt, rc=%d\n", rc); rc = -ENOENT; goto free_phy_irq; } /* Init tasklets for cq only */ for (i = 0; i < hisi_hba->queue_count; i++) { struct hisi_sas_cq *cq = &hisi_hba->cq[i]; struct tasklet_struct *t = &cq->tasklet; rc = devm_request_irq(dev, pci_irq_vector(pdev, i+16), cq_interrupt_v3_hw, 0, DRV_NAME " cq", cq); if (rc) { dev_err(dev, "could not request cq%d interrupt, rc=%d\n", i, rc); rc = -ENOENT; goto free_cq_irqs; } tasklet_init(t, cq_tasklet_v3_hw, (unsigned long)cq); } return 0; free_cq_irqs: for (k = 0; k < i; k++) { struct hisi_sas_cq *cq = &hisi_hba->cq[k]; free_irq(pci_irq_vector(pdev, k+16), cq); } free_irq(pci_irq_vector(pdev, 2), hisi_hba); free_phy_irq: free_irq(pci_irq_vector(pdev, 1), hisi_hba); free_irq_vectors: pci_free_irq_vectors(pdev); return rc; } static int hisi_sas_v3_init(struct hisi_hba *hisi_hba) { int rc; rc = hw_init_v3_hw(hisi_hba); if (rc) return rc; rc = interrupt_init_v3_hw(hisi_hba); if (rc) return rc; return 0; } static const struct hisi_sas_hw hisi_sas_v3_hw = { .hw_init = hisi_sas_v3_init, .max_command_entries = HISI_SAS_COMMAND_ENTRIES_V3_HW, .complete_hdr_size = sizeof(struct hisi_sas_complete_v3_hdr), .sl_notify = sl_notify_v3_hw, .prep_ssp = prep_ssp_v3_hw, .prep_smp = prep_smp_v3_hw, .prep_stp = prep_ata_v3_hw, .get_free_slot = get_free_slot_v3_hw, .start_delivery = start_delivery_v3_hw, .slot_complete = slot_complete_v3_hw, .phys_init = phys_init_v3_hw, }; static struct Scsi_Host * hisi_sas_shost_alloc_pci(struct pci_dev *pdev) { struct Scsi_Host *shost; struct hisi_hba *hisi_hba; struct device *dev = &pdev->dev; shost = scsi_host_alloc(hisi_sas_sht, sizeof(*hisi_hba)); if (!shost) goto err_out; hisi_hba = shost_priv(shost); hisi_hba->hw = &hisi_sas_v3_hw; hisi_hba->pci_dev = pdev; hisi_hba->dev = dev; hisi_hba->shost = shost; SHOST_TO_SAS_HA(shost) = &hisi_hba->sha; init_timer(&hisi_hba->timer); if (hisi_sas_get_fw_info(hisi_hba) < 0) goto err_out; if (hisi_sas_alloc(hisi_hba, shost)) { hisi_sas_free(hisi_hba); goto err_out; } return shost; err_out: dev_err(dev, "shost alloc failed\n"); return NULL; } static int hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct Scsi_Host *shost; struct hisi_hba *hisi_hba; struct device *dev = &pdev->dev; struct asd_sas_phy **arr_phy; struct asd_sas_port **arr_port; struct sas_ha_struct *sha; int rc, phy_nr, port_nr, i; rc = pci_enable_device(pdev); if (rc) goto err_out; pci_set_master(pdev); rc = pci_request_regions(pdev, DRV_NAME); if (rc) goto err_out_disable_device; if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) || (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)) { if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) || (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) { dev_err(dev, "No usable DMA addressing method\n"); rc = -EIO; goto err_out_regions; } } shost = hisi_sas_shost_alloc_pci(pdev); if (!shost) { rc = -ENOMEM; goto err_out_regions; } sha = SHOST_TO_SAS_HA(shost); hisi_hba = shost_priv(shost); dev_set_drvdata(dev, sha); hisi_hba->regs = pcim_iomap(pdev, 5, 0); if (!hisi_hba->regs) { dev_err(dev, "cannot map register.\n"); rc = -ENOMEM; goto err_out_ha; } phy_nr = port_nr = hisi_hba->n_phy; arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL); arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL); if (!arr_phy || !arr_port) { rc = -ENOMEM; goto err_out_ha; } sha->sas_phy = arr_phy; sha->sas_port = arr_port; sha->core.shost = shost; sha->lldd_ha = hisi_hba; shost->transportt = hisi_sas_stt; shost->max_id = HISI_SAS_MAX_DEVICES; shost->max_lun = ~0; shost->max_channel = 1; shost->max_cmd_len = 16; shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT); shost->can_queue = hisi_hba->hw->max_command_entries; shost->cmd_per_lun = hisi_hba->hw->max_command_entries; sha->sas_ha_name = DRV_NAME; sha->dev = dev; sha->lldd_module = THIS_MODULE; sha->sas_addr = &hisi_hba->sas_addr[0]; sha->num_phys = hisi_hba->n_phy; sha->core.shost = hisi_hba->shost; for (i = 0; i < hisi_hba->n_phy; i++) { sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy; sha->sas_port[i] = &hisi_hba->port[i].sas_port; } hisi_sas_init_add(hisi_hba); rc = scsi_add_host(shost, dev); if (rc) goto err_out_ha; rc = sas_register_ha(sha); if (rc) goto err_out_register_ha; rc = hisi_hba->hw->hw_init(hisi_hba); if (rc) goto err_out_register_ha; scsi_scan_host(shost); return 0; err_out_register_ha: scsi_remove_host(shost); err_out_ha: kfree(shost); err_out_regions: pci_release_regions(pdev); err_out_disable_device: pci_disable_device(pdev); err_out: return rc; } static void hisi_sas_v3_destroy_irqs(struct pci_dev *pdev, struct hisi_hba *hisi_hba) { int i; free_irq(pci_irq_vector(pdev, 1), hisi_hba); free_irq(pci_irq_vector(pdev, 2), hisi_hba); for (i = 0; i < hisi_hba->queue_count; i++) { struct hisi_sas_cq *cq = &hisi_hba->cq[i]; free_irq(pci_irq_vector(pdev, i+16), cq); } pci_free_irq_vectors(pdev); } static void hisi_sas_v3_remove(struct pci_dev *pdev) { struct device *dev = &pdev->dev; struct sas_ha_struct *sha = dev_get_drvdata(dev); struct hisi_hba *hisi_hba = sha->lldd_ha; sas_unregister_ha(sha); sas_remove_host(sha->core.shost); hisi_sas_free(hisi_hba); hisi_sas_v3_destroy_irqs(pdev, hisi_hba); pci_release_regions(pdev); pci_disable_device(pdev); } enum { /* instances of the controller */ hip08, }; static const struct pci_device_id sas_v3_pci_table[] = { { PCI_VDEVICE(HUAWEI, 0xa230), hip08 }, {} }; static struct pci_driver sas_v3_pci_driver = { .name = DRV_NAME, .id_table = sas_v3_pci_table, .probe = hisi_sas_v3_probe, .remove = hisi_sas_v3_remove, }; module_pci_driver(sas_v3_pci_driver); MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL"); MODULE_AUTHOR("John Garry "); MODULE_DESCRIPTION("HISILICON SAS controller v3 hw driver based on pci device"); MODULE_ALIAS("platform:" DRV_NAME);