block: remove skd driver

The STEC S1220 PCIe SSD cards are EOL since 2014 and not supported by
the vendor anymore. As the skd driver for this SSD is starting to cause
problems with improvements to the block layer, stop supporting it in
newer kernel versions.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 0 insertions, 322 deletions

diff --git a/drivers/block/skd_s1120.h b/drivers/block/skd_s1120.h
deleted file mode 100644
index c30bb98c7cd2..000000000000
--- a/drivers/block/skd_s1120.h
+++ /dev/null
@@ -1,322 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright 2012 STEC, Inc.
- * Copyright (c) 2017 Western Digital Corporation or its affiliates.
- */
-
-
-#ifndef SKD_S1120_H
-#define SKD_S1120_H
-
-/*
- * Q-channel, 64-bit r/w
- */
-#define FIT_Q_COMMAND			0x400u
-#define FIT_QCMD_QID_MASK		(0x3 << 1)
-#define  FIT_QCMD_QID0			(0x0 << 1)
-#define  FIT_QCMD_QID_NORMAL		FIT_QCMD_QID0
-#define  FIT_QCMD_QID1			(0x1 << 1)
-#define  FIT_QCMD_QID2			(0x2 << 1)
-#define  FIT_QCMD_QID3			(0x3 << 1)
-#define  FIT_QCMD_FLUSH_QUEUE		(0ull)	/* add QID */
-#define  FIT_QCMD_MSGSIZE_MASK		(0x3 << 4)
-#define  FIT_QCMD_MSGSIZE_64		(0x0 << 4)
-#define  FIT_QCMD_MSGSIZE_128		(0x1 << 4)
-#define  FIT_QCMD_MSGSIZE_256		(0x2 << 4)
-#define  FIT_QCMD_MSGSIZE_512		(0x3 << 4)
-#define  FIT_QCMD_ALIGN			L1_CACHE_BYTES
-
-/*
- * Control, 32-bit r/w
- */
-#define FIT_CONTROL			0x500u
-#define  FIT_CR_HARD_RESET		(1u << 0u)
-#define  FIT_CR_SOFT_RESET		(1u << 1u)
-#define  FIT_CR_DIS_TIMESTAMPS		(1u << 6u)
-#define  FIT_CR_ENABLE_INTERRUPTS	(1u << 7u)
-
-/*
- * Status, 32-bit, r/o
- */
-#define FIT_STATUS			0x510u
-#define FIT_SR_DRIVE_STATE_MASK		0x000000FFu
-#define	FIT_SR_SIGNATURE		(0xFF << 8)
-#define	FIT_SR_PIO_DMA			(1 << 16)
-#define FIT_SR_DRIVE_OFFLINE		0x00
-#define FIT_SR_DRIVE_INIT		0x01
-/* #define FIT_SR_DRIVE_READY		0x02 */
-#define FIT_SR_DRIVE_ONLINE		0x03
-#define FIT_SR_DRIVE_BUSY		0x04
-#define FIT_SR_DRIVE_FAULT		0x05
-#define FIT_SR_DRIVE_DEGRADED		0x06
-#define FIT_SR_PCIE_LINK_DOWN		0x07
-#define FIT_SR_DRIVE_SOFT_RESET		0x08
-#define FIT_SR_DRIVE_INIT_FAULT		0x09
-#define FIT_SR_DRIVE_BUSY_SANITIZE	0x0A
-#define FIT_SR_DRIVE_BUSY_ERASE		0x0B
-#define FIT_SR_DRIVE_FW_BOOTING		0x0C
-#define FIT_SR_DRIVE_NEED_FW_DOWNLOAD	0xFE
-#define FIT_SR_DEVICE_MISSING		0xFF
-#define FIT_SR__RESERVED		0xFFFFFF00u
-
-/*
- * FIT_STATUS - Status register data definition
- */
-#define FIT_SR_STATE_MASK		(0xFF << 0)
-#define FIT_SR_SIGNATURE		(0xFF << 8)
-#define FIT_SR_PIO_DMA			(1 << 16)
-
-/*
- * Interrupt status, 32-bit r/w1c (w1c ==> write 1 to clear)
- */
-#define FIT_INT_STATUS_HOST		0x520u
-#define  FIT_ISH_FW_STATE_CHANGE	(1u << 0u)
-#define  FIT_ISH_COMPLETION_POSTED	(1u << 1u)
-#define  FIT_ISH_MSG_FROM_DEV		(1u << 2u)
-#define  FIT_ISH_UNDEFINED_3		(1u << 3u)
-#define  FIT_ISH_UNDEFINED_4		(1u << 4u)
-#define  FIT_ISH_Q0_FULL		(1u << 5u)
-#define  FIT_ISH_Q1_FULL		(1u << 6u)
-#define  FIT_ISH_Q2_FULL		(1u << 7u)
-#define  FIT_ISH_Q3_FULL		(1u << 8u)
-#define  FIT_ISH_QCMD_FIFO_OVERRUN	(1u << 9u)
-#define  FIT_ISH_BAD_EXP_ROM_READ	(1u << 10u)
-
-#define FIT_INT_DEF_MASK \
-	(FIT_ISH_FW_STATE_CHANGE | \
-	 FIT_ISH_COMPLETION_POSTED | \
-	 FIT_ISH_MSG_FROM_DEV | \
-	 FIT_ISH_Q0_FULL | \
-	 FIT_ISH_Q1_FULL | \
-	 FIT_ISH_Q2_FULL | \
-	 FIT_ISH_Q3_FULL | \
-	 FIT_ISH_QCMD_FIFO_OVERRUN | \
-	 FIT_ISH_BAD_EXP_ROM_READ)
-
-#define FIT_INT_QUEUE_FULL \
-	(FIT_ISH_Q0_FULL | \
-	 FIT_ISH_Q1_FULL | \
-	 FIT_ISH_Q2_FULL | \
-	 FIT_ISH_Q3_FULL)
-
-#define MSI_MSG_NWL_ERROR_0		0x00000000
-#define MSI_MSG_NWL_ERROR_1		0x00000001
-#define MSI_MSG_NWL_ERROR_2		0x00000002
-#define MSI_MSG_NWL_ERROR_3		0x00000003
-#define MSI_MSG_STATE_CHANGE		0x00000004
-#define MSI_MSG_COMPLETION_POSTED	0x00000005
-#define MSI_MSG_MSG_FROM_DEV		0x00000006
-#define MSI_MSG_RESERVED_0		0x00000007
-#define MSI_MSG_RESERVED_1		0x00000008
-#define MSI_MSG_QUEUE_0_FULL		0x00000009
-#define MSI_MSG_QUEUE_1_FULL		0x0000000A
-#define MSI_MSG_QUEUE_2_FULL		0x0000000B
-#define MSI_MSG_QUEUE_3_FULL		0x0000000C
-
-#define FIT_INT_RESERVED_MASK \
-	(FIT_ISH_UNDEFINED_3 | \
-	 FIT_ISH_UNDEFINED_4)
-
-/*
- * Interrupt mask, 32-bit r/w
- * Bit definitions are the same as FIT_INT_STATUS_HOST
- */
-#define FIT_INT_MASK_HOST		0x528u
-
-/*
- * Message to device, 32-bit r/w
- */
-#define FIT_MSG_TO_DEVICE		0x540u
-
-/*
- * Message from device, 32-bit, r/o
- */
-#define FIT_MSG_FROM_DEVICE		0x548u
-
-/*
- * 32-bit messages to/from device, composition/extraction macros
- */
-#define FIT_MXD_CONS(TYPE, PARAM, DATA) \
-	((((TYPE)  & 0xFFu) << 24u) | \
-	(((PARAM) & 0xFFu) << 16u) | \
-	(((DATA)  & 0xFFFFu) << 0u))
-#define FIT_MXD_TYPE(MXD)		(((MXD) >> 24u) & 0xFFu)
-#define FIT_MXD_PARAM(MXD)		(((MXD) >> 16u) & 0xFFu)
-#define FIT_MXD_DATA(MXD)		(((MXD) >> 0u) & 0xFFFFu)
-
-/*
- * Types of messages to/from device
- */
-#define FIT_MTD_FITFW_INIT		0x01u
-#define FIT_MTD_GET_CMDQ_DEPTH		0x02u
-#define FIT_MTD_SET_COMPQ_DEPTH		0x03u
-#define FIT_MTD_SET_COMPQ_ADDR		0x04u
-#define FIT_MTD_ARM_QUEUE		0x05u
-#define FIT_MTD_CMD_LOG_HOST_ID		0x07u
-#define FIT_MTD_CMD_LOG_TIME_STAMP_LO	0x08u
-#define FIT_MTD_CMD_LOG_TIME_STAMP_HI	0x09u
-#define FIT_MFD_SMART_EXCEEDED		0x10u
-#define FIT_MFD_POWER_DOWN		0x11u
-#define FIT_MFD_OFFLINE			0x12u
-#define FIT_MFD_ONLINE			0x13u
-#define FIT_MFD_FW_RESTARTING		0x14u
-#define FIT_MFD_PM_ACTIVE		0x15u
-#define FIT_MFD_PM_STANDBY		0x16u
-#define FIT_MFD_PM_SLEEP		0x17u
-#define FIT_MFD_CMD_PROGRESS		0x18u
-
-#define FIT_MTD_DEBUG			0xFEu
-#define FIT_MFD_DEBUG			0xFFu
-
-#define FIT_MFD_MASK			(0xFFu)
-#define FIT_MFD_DATA_MASK		(0xFFu)
-#define FIT_MFD_MSG(x)			(((x) >> 24) & FIT_MFD_MASK)
-#define FIT_MFD_DATA(x)			((x) & FIT_MFD_MASK)
-
-/*
- * Extra arg to FIT_MSG_TO_DEVICE, 64-bit r/w
- * Used to set completion queue address (FIT_MTD_SET_COMPQ_ADDR)
- * (was Response buffer in docs)
- */
-#define FIT_MSG_TO_DEVICE_ARG		0x580u
-
-/*
- * Hardware (ASIC) version, 32-bit r/o
- */
-#define FIT_HW_VERSION			0x588u
-
-/*
- * Scatter/gather list descriptor.
- * 32-bytes and must be aligned on a 32-byte boundary.
- * All fields are in little endian order.
- */
-struct fit_sg_descriptor {
-	uint32_t control;
-	uint32_t byte_count;
-	uint64_t host_side_addr;
-	uint64_t dev_side_addr;
-	uint64_t next_desc_ptr;
-};
-
-#define FIT_SGD_CONTROL_NOT_LAST	0x000u
-#define FIT_SGD_CONTROL_LAST		0x40Eu
-
-/*
- * Header at the beginning of a FIT message. The header
- * is followed by SSDI requests each 64 bytes.
- * A FIT message can be up to 512 bytes long and must start
- * on a 64-byte boundary.
- */
-struct fit_msg_hdr {
-	uint8_t protocol_id;
-	uint8_t num_protocol_cmds_coalesced;
-	uint8_t _reserved[62];
-};
-
-#define FIT_PROTOCOL_ID_FIT	1
-#define FIT_PROTOCOL_ID_SSDI	2
-#define FIT_PROTOCOL_ID_SOFIT	3
-
-
-#define FIT_PROTOCOL_MINOR_VER(mtd_val) ((mtd_val >> 16) & 0xF)
-#define FIT_PROTOCOL_MAJOR_VER(mtd_val) ((mtd_val >> 20) & 0xF)
-
-/*
- * Format of a completion entry. The completion queue is circular
- * and must have at least as many entries as the maximum number
- * of commands that may be issued to the device.
- *
- * There are no head/tail pointers. The cycle value is used to
- * infer the presence of new completion records.
- * Initially the cycle in all entries is 0, the index is 0, and
- * the cycle value to expect is 1. When completions are added
- * their cycle values are set to 1. When the index wraps the
- * cycle value to expect is incremented.
- *
- * Command_context is opaque and taken verbatim from the SSDI command.
- * All other fields are big endian.
- */
-#define FIT_PROTOCOL_VERSION_0		0
-
-/*
- *  Protocol major version 1 completion entry.
- *  The major protocol version is found in bits
- *  20-23 of the FIT_MTD_FITFW_INIT response.
- */
-struct fit_completion_entry_v1 {
-	__be32		num_returned_bytes;
-	uint16_t	tag;
-	uint8_t		status;  /* SCSI status */
-	uint8_t		cycle;
-};
-#define FIT_PROTOCOL_VERSION_1		1
-#define FIT_PROTOCOL_VERSION_CURRENT	FIT_PROTOCOL_VERSION_1
-
-struct fit_comp_error_info {
-	uint8_t		type:7; /* 00: Bits0-6 indicates the type of sense data. */
-	uint8_t		valid:1; /* 00: Bit 7 := 1 ==> info field is valid. */
-	uint8_t		reserved0; /* 01: Obsolete field */
-	uint8_t		key:4; /* 02: Bits0-3 indicate the sense key. */
-	uint8_t		reserved2:1; /* 02: Reserved bit. */
-	uint8_t		bad_length:1; /* 02: Incorrect Length Indicator */
-	uint8_t		end_medium:1; /* 02: End of Medium */
-	uint8_t		file_mark:1; /* 02: Filemark */
-	uint8_t		info[4]; /* 03: */
-	uint8_t		reserved1; /* 07: Additional Sense Length */
-	uint8_t		cmd_spec[4]; /* 08: Command Specific Information */
-	uint8_t		code; /* 0C: Additional Sense Code */
-	uint8_t		qual; /* 0D: Additional Sense Code Qualifier */
-	uint8_t		fruc; /* 0E: Field Replaceable Unit Code */
-	uint8_t		sks_high:7; /* 0F: Sense Key Specific (MSB) */
-	uint8_t		sks_valid:1; /* 0F: Sense Key Specific Valid */
-	uint16_t	sks_low; /* 10: Sense Key Specific (LSW) */
-	uint16_t	reserved3; /* 12: Part of additional sense bytes (unused) */
-	uint16_t	uec; /* 14: Additional Sense Bytes */
-	uint64_t	per __packed; /* 16: Additional Sense Bytes */
-	uint8_t		reserved4[2]; /* 1E: Additional Sense Bytes (unused) */
-};
-
-
-/* Task management constants */
-#define SOFT_TASK_SIMPLE		0x00
-#define SOFT_TASK_HEAD_OF_QUEUE		0x01
-#define SOFT_TASK_ORDERED		0x02
-
-/* Version zero has the last 32 bits reserved,
- * Version one has the last 32 bits sg_list_len_bytes;
- */
-struct skd_command_header {
-	__be64		sg_list_dma_address;
-	uint16_t	tag;
-	uint8_t		attribute;
-	uint8_t		add_cdb_len;     /* In 32 bit words */
-	__be32		sg_list_len_bytes;
-};
-
-struct skd_scsi_request {
-	struct		skd_command_header hdr;
-	unsigned char	cdb[16];
-/*	unsigned char _reserved[16]; */
-};
-
-struct driver_inquiry_data {
-	uint8_t		peripheral_device_type:5;
-	uint8_t		qualifier:3;
-	uint8_t		page_code;
-	__be16		page_length;
-	__be16		pcie_bus_number;
-	uint8_t		pcie_device_number;
-	uint8_t		pcie_function_number;
-	uint8_t		pcie_link_speed;
-	uint8_t		pcie_link_lanes;
-	__be16		pcie_vendor_id;
-	__be16		pcie_device_id;
-	__be16		pcie_subsystem_vendor_id;
-	__be16		pcie_subsystem_device_id;
-	uint8_t		reserved1[2];
-	uint8_t		reserved2[3];
-	uint8_t		driver_version_length;
-	uint8_t		driver_version[0x14];
-};
-
-#endif /* SKD_S1120_H */