From c21e0bbfc48509a776ec4a39bd9a0fb45a9c315b Mon Sep 17 00:00:00 2001 From: "Matthew R. Ochs" Date: Tue, 9 Jun 2015 17:15:52 -0500 Subject: cxlflash: Base support for IBM CXL Flash Adapter SCSI device driver to support filesystem access on the IBM CXL Flash adapter. Supported-by: Stephen Bates Reviewed-by: Michael Neuling Signed-off-by: Matthew R. Ochs Signed-off-by: Manoj N. Kumar Reviewed-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/cxlflash/main.h | 104 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 drivers/scsi/cxlflash/main.h (limited to 'drivers/scsi/cxlflash/main.h') diff --git a/drivers/scsi/cxlflash/main.h b/drivers/scsi/cxlflash/main.h new file mode 100644 index 000000000000..7f890ccf3289 --- /dev/null +++ b/drivers/scsi/cxlflash/main.h @@ -0,0 +1,104 @@ +/* + * CXL Flash Device Driver + * + * Written by: Manoj N. Kumar , IBM Corporation + * Matthew R. Ochs , IBM Corporation + * + * Copyright (C) 2015 IBM Corporation + * + * 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. + */ + +#ifndef _CXLFLASH_MAIN_H +#define _CXLFLASH_MAIN_H + +#include +#include +#include +#include + +#define CXLFLASH_NAME "cxlflash" +#define CXLFLASH_ADAPTER_NAME "IBM POWER CXL Flash Adapter" +#define CXLFLASH_DRIVER_DATE "(June 2, 2015)" + +#define PCI_DEVICE_ID_IBM_CORSA 0x04F0 +#define CXLFLASH_SUBS_DEV_ID 0x04F0 + +/* 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) + +#define NUM_FC_PORTS CXLFLASH_NUM_FC_PORTS /* ports per AFU */ + +/* FC defines */ +#define FC_MTIP_CMDCONFIG 0x010 +#define FC_MTIP_STATUS 0x018 + +#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 */ + +/* 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 { + RELEASE_CONTEXT = 0, + FREE_IRQ, + UNMAP_ONE, + UNMAP_TWO, + UNMAP_THREE, + UNDO_START +}; + +struct dev_dependent_vals { + u64 max_sectors; +}; + +struct asyc_intr_info { + u64 status; + char *desc; + u8 port; + u8 action; +#define CLR_FC_ERROR 0x01 +#define LINK_RESET 0x02 +}; + +#endif /* _CXLFLASH_MAIN_H */ -- cgit v1.2.3