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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
commit8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch)
treee9891aa6c295060d065adffd610c4f49ecf884f3 /drivers/scsi/cxlflash/main.h
parenta71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff)
Linux-libre 4.3.2-gnu
Diffstat (limited to 'drivers/scsi/cxlflash/main.h')
-rw-r--r--drivers/scsi/cxlflash/main.h108
1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/scsi/cxlflash/main.h b/drivers/scsi/cxlflash/main.h
new file mode 100644
index 000000000..cf0e80938
--- /dev/null
+++ b/drivers/scsi/cxlflash/main.h
@@ -0,0 +1,108 @@
+/*
+ * 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
+ *
+ * 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 <linux/list.h>
+#include <linux/types.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_device.h>
+
+#define CXLFLASH_NAME "cxlflash"
+#define CXLFLASH_ADAPTER_NAME "IBM POWER CXL Flash Adapter"
+#define CXLFLASH_DRIVER_DATE "(August 13, 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
+};
+
+#ifndef CONFIG_CXL_EEH
+#define cxl_perst_reloads_same_image(_a, _b) do { } while (0)
+#endif
+
+#endif /* _CXLFLASH_MAIN_H */