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c21e0bbf MO |
1 | /* |
2 | * CXL Flash Device Driver | |
3 | * | |
4 | * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation | |
5 | * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation | |
6 | * | |
7 | * Copyright (C) 2015 IBM Corporation | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
11 | * as published by the Free Software Foundation; either version | |
12 | * 2 of the License, or (at your option) any later version. | |
13 | */ | |
14 | ||
15 | #ifndef _CXLFLASH_MAIN_H | |
16 | #define _CXLFLASH_MAIN_H | |
17 | ||
18 | #include <linux/list.h> | |
19 | #include <linux/types.h> | |
20 | #include <scsi/scsi.h> | |
21 | #include <scsi/scsi_device.h> | |
22 | ||
23 | #define CXLFLASH_NAME "cxlflash" | |
24 | #define CXLFLASH_ADAPTER_NAME "IBM POWER CXL Flash Adapter" | |
c21e0bbf | 25 | |
a2746fb1 MK |
26 | #define PCI_DEVICE_ID_IBM_CORSA 0x04F0 |
27 | #define PCI_DEVICE_ID_IBM_FLASH_GT 0x0600 | |
c21e0bbf MO |
28 | |
29 | /* Since there is only one target, make it 0 */ | |
30 | #define CXLFLASH_TARGET 0 | |
31 | #define CXLFLASH_MAX_CDB_LEN 16 | |
32 | ||
33 | /* Really only one target per bus since the Texan is directly attached */ | |
34 | #define CXLFLASH_MAX_NUM_TARGETS_PER_BUS 1 | |
35 | #define CXLFLASH_MAX_NUM_LUNS_PER_TARGET 65536 | |
36 | ||
37 | #define CXLFLASH_PCI_ERROR_RECOVERY_TIMEOUT (120 * HZ) | |
38 | ||
39 | #define NUM_FC_PORTS CXLFLASH_NUM_FC_PORTS /* ports per AFU */ | |
40 | ||
41 | /* FC defines */ | |
42 | #define FC_MTIP_CMDCONFIG 0x010 | |
43 | #define FC_MTIP_STATUS 0x018 | |
44 | ||
45 | #define FC_PNAME 0x300 | |
46 | #define FC_CONFIG 0x320 | |
47 | #define FC_CONFIG2 0x328 | |
48 | #define FC_STATUS 0x330 | |
49 | #define FC_ERROR 0x380 | |
50 | #define FC_ERRCAP 0x388 | |
51 | #define FC_ERRMSK 0x390 | |
52 | #define FC_CNT_CRCERR 0x538 | |
53 | #define FC_CRC_THRESH 0x580 | |
54 | ||
55 | #define FC_MTIP_CMDCONFIG_ONLINE 0x20ULL | |
56 | #define FC_MTIP_CMDCONFIG_OFFLINE 0x40ULL | |
57 | ||
58 | #define FC_MTIP_STATUS_MASK 0x30ULL | |
59 | #define FC_MTIP_STATUS_ONLINE 0x20ULL | |
60 | #define FC_MTIP_STATUS_OFFLINE 0x10ULL | |
61 | ||
62 | /* TIMEOUT and RETRY definitions */ | |
63 | ||
64 | /* AFU command timeout values */ | |
65 | #define MC_AFU_SYNC_TIMEOUT 5 /* 5 secs */ | |
66 | ||
67 | /* AFU command room retry limit */ | |
68 | #define MC_ROOM_RETRY_CNT 10 | |
69 | ||
70 | /* FC CRC clear periodic timer */ | |
71 | #define MC_CRC_THRESH 100 /* threshold in 5 mins */ | |
72 | ||
73 | #define FC_PORT_STATUS_RETRY_CNT 100 /* 100 100ms retries = 10 seconds */ | |
74 | #define FC_PORT_STATUS_RETRY_INTERVAL_US 100000 /* microseconds */ | |
75 | ||
76 | /* VPD defines */ | |
77 | #define CXLFLASH_VPD_LEN 256 | |
78 | #define WWPN_LEN 16 | |
79 | #define WWPN_BUF_LEN (WWPN_LEN + 1) | |
80 | ||
81 | enum undo_level { | |
9526f360 | 82 | UNDO_NOOP = 0, |
c21e0bbf MO |
83 | FREE_IRQ, |
84 | UNMAP_ONE, | |
85 | UNMAP_TWO, | |
9526f360 | 86 | UNMAP_THREE |
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87 | }; |
88 | ||
89 | struct dev_dependent_vals { | |
90 | u64 max_sectors; | |
96e1b660 | 91 | u64 flags; |
704c4b0d | 92 | #define CXLFLASH_NOTIFY_SHUTDOWN 0x0000000000000001ULL |
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93 | }; |
94 | ||
95 | struct asyc_intr_info { | |
96 | u64 status; | |
97 | char *desc; | |
98 | u8 port; | |
99 | u8 action; | |
100 | #define CLR_FC_ERROR 0x01 | |
101 | #define LINK_RESET 0x02 | |
ef51074a | 102 | #define SCAN_HOST 0x04 |
c21e0bbf MO |
103 | }; |
104 | ||
105 | #endif /* _CXLFLASH_MAIN_H */ |