2 * CXL Flash Device Driver
4 * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
5 * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
7 * Copyright (C) 2015 IBM Corporation
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.
15 #ifndef _CXLFLASH_MAIN_H
16 #define _CXLFLASH_MAIN_H
18 #include <linux/list.h>
19 #include <linux/types.h>
20 #include <scsi/scsi.h>
21 #include <scsi/scsi_device.h>
23 #define CXLFLASH_NAME "cxlflash"
24 #define CXLFLASH_ADAPTER_NAME "IBM POWER CXL Flash Adapter"
25 #define CXLFLASH_DRIVER_DATE "(August 13, 2015)"
27 #define PCI_DEVICE_ID_IBM_CORSA 0x04F0
28 #define PCI_DEVICE_ID_IBM_FLASH_GT 0x0600
30 /* Since there is only one target, make it 0 */
31 #define CXLFLASH_TARGET 0
32 #define CXLFLASH_MAX_CDB_LEN 16
34 /* Really only one target per bus since the Texan is directly attached */
35 #define CXLFLASH_MAX_NUM_TARGETS_PER_BUS 1
36 #define CXLFLASH_MAX_NUM_LUNS_PER_TARGET 65536
38 #define CXLFLASH_PCI_ERROR_RECOVERY_TIMEOUT (120 * HZ)
40 #define NUM_FC_PORTS CXLFLASH_NUM_FC_PORTS /* ports per AFU */
43 #define FC_MTIP_CMDCONFIG 0x010
44 #define FC_MTIP_STATUS 0x018
46 #define FC_PNAME 0x300
47 #define FC_CONFIG 0x320
48 #define FC_CONFIG2 0x328
49 #define FC_STATUS 0x330
50 #define FC_ERROR 0x380
51 #define FC_ERRCAP 0x388
52 #define FC_ERRMSK 0x390
53 #define FC_CNT_CRCERR 0x538
54 #define FC_CRC_THRESH 0x580
56 #define FC_MTIP_CMDCONFIG_ONLINE 0x20ULL
57 #define FC_MTIP_CMDCONFIG_OFFLINE 0x40ULL
59 #define FC_MTIP_STATUS_MASK 0x30ULL
60 #define FC_MTIP_STATUS_ONLINE 0x20ULL
61 #define FC_MTIP_STATUS_OFFLINE 0x10ULL
63 /* TIMEOUT and RETRY definitions */
65 /* AFU command timeout values */
66 #define MC_AFU_SYNC_TIMEOUT 5 /* 5 secs */
68 /* AFU command room retry limit */
69 #define MC_ROOM_RETRY_CNT 10
71 /* FC CRC clear periodic timer */
72 #define MC_CRC_THRESH 100 /* threshold in 5 mins */
74 #define FC_PORT_STATUS_RETRY_CNT 100 /* 100 100ms retries = 10 seconds */
75 #define FC_PORT_STATUS_RETRY_INTERVAL_US 100000 /* microseconds */
78 #define CXLFLASH_VPD_LEN 256
80 #define WWPN_BUF_LEN (WWPN_LEN + 1)
91 struct dev_dependent_vals
{
95 struct asyc_intr_info
{
100 #define CLR_FC_ERROR 0x01
101 #define LINK_RESET 0x02
102 #define SCAN_HOST 0x04
105 #ifndef CONFIG_CXL_EEH
106 #define cxl_perst_reloads_same_image(_a, _b) do { } while (0)
109 #endif /* _CXLFLASH_MAIN_H */