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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | /* SPDX-License-Identifier: GPL-2.0-or-later */ /* * CXL Flash Device Driver * * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation * * Copyright (C) 2015 IBM Corporation */ #ifndef _CXLFLASH_MAIN_H #define _CXLFLASH_MAIN_H #include <linux/list.h> #include <linux/types.h> #include <scsi/scsi.h> #include <scsi/scsi_device.h> #include "backend.h" #define CXLFLASH_NAME "cxlflash" #define CXLFLASH_ADAPTER_NAME "IBM POWER CXL Flash Adapter" #define CXLFLASH_MAX_ADAPTERS 32 #define PCI_DEVICE_ID_IBM_CORSA 0x04F0 #define PCI_DEVICE_ID_IBM_FLASH_GT 0x0600 #define PCI_DEVICE_ID_IBM_BRIARD 0x0624 /* Since there is only one target, make it 0 */ #define CXLFLASH_TARGET 0 #define CXLFLASH_MAX_CDB_LEN 16 /* Really only one target per bus since the Texan is directly attached */ #define CXLFLASH_MAX_NUM_TARGETS_PER_BUS 1 #define CXLFLASH_MAX_NUM_LUNS_PER_TARGET 65536 #define CXLFLASH_PCI_ERROR_RECOVERY_TIMEOUT (120 * HZ) /* FC defines */ #define FC_MTIP_CMDCONFIG 0x010 #define FC_MTIP_STATUS 0x018 #define FC_MAX_NUM_LUNS 0x080 /* Max LUNs host can provision for port */ #define FC_CUR_NUM_LUNS 0x088 /* Cur number LUNs provisioned for port */ #define FC_MAX_CAP_PORT 0x090 /* Max capacity all LUNs for port (4K blocks) */ #define FC_CUR_CAP_PORT 0x098 /* Cur capacity all LUNs for port (4K blocks) */ #define FC_PNAME 0x300 #define FC_CONFIG 0x320 #define FC_CONFIG2 0x328 #define FC_STATUS 0x330 #define FC_ERROR 0x380 #define FC_ERRCAP 0x388 #define FC_ERRMSK 0x390 #define FC_CNT_CRCERR 0x538 #define FC_CRC_THRESH 0x580 #define FC_MTIP_CMDCONFIG_ONLINE 0x20ULL #define FC_MTIP_CMDCONFIG_OFFLINE 0x40ULL #define FC_MTIP_STATUS_MASK 0x30ULL #define FC_MTIP_STATUS_ONLINE 0x20ULL #define FC_MTIP_STATUS_OFFLINE 0x10ULL /* TIMEOUT and RETRY definitions */ /* AFU command timeout values */ #define MC_AFU_SYNC_TIMEOUT 5 /* 5 secs */ #define MC_LUN_PROV_TIMEOUT 5 /* 5 secs */ #define MC_AFU_DEBUG_TIMEOUT 5 /* 5 secs */ /* AFU command room retry limit */ #define MC_ROOM_RETRY_CNT 10 /* FC CRC clear periodic timer */ #define MC_CRC_THRESH 100 /* threshold in 5 mins */ #define FC_PORT_STATUS_RETRY_CNT 100 /* 100 100ms retries = 10 seconds */ #define FC_PORT_STATUS_RETRY_INTERVAL_US 100000 /* microseconds */ /* VPD defines */ #define CXLFLASH_VPD_LEN 256 #define WWPN_LEN 16 #define WWPN_BUF_LEN (WWPN_LEN + 1) enum undo_level { UNDO_NOOP = 0, FREE_IRQ, UNMAP_ONE, UNMAP_TWO, UNMAP_THREE }; struct dev_dependent_vals { u64 max_sectors; u64 flags; #define CXLFLASH_NOTIFY_SHUTDOWN 0x0000000000000001ULL #define CXLFLASH_WWPN_VPD_REQUIRED 0x0000000000000002ULL #define CXLFLASH_OCXL_DEV 0x0000000000000004ULL }; static inline const struct cxlflash_backend_ops * cxlflash_assign_ops(struct dev_dependent_vals *ddv) { const struct cxlflash_backend_ops *ops = NULL; #ifdef CONFIG_OCXL_BASE if (ddv->flags & CXLFLASH_OCXL_DEV) ops = &cxlflash_ocxl_ops; #endif #ifdef CONFIG_CXL_BASE if (!(ddv->flags & CXLFLASH_OCXL_DEV)) ops = &cxlflash_cxl_ops; #endif return ops; } struct asyc_intr_info { u64 status; char *desc; u8 port; u8 action; #define CLR_FC_ERROR 0x01 #define LINK_RESET 0x02 #define SCAN_HOST 0x04 }; #endif /* _CXLFLASH_MAIN_H */ |