Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 129 insertions, 0 deletions

diff --git a/drivers/scsi/cxlflash/main.h b/drivers/scsi/cxlflash/main.h
new file mode 100644
index 0000000000..0bfb98effc
--- /dev/null
+++ b/drivers/scsi/cxlflash/main.h
@@ -0,0 +1,129 @@
+/* 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 */