1 files changed, 0 insertions, 242 deletions
diff --git a/drivers/cdx/controller/mcdi.h b/drivers/cdx/controller/mcdi.h
deleted file mode 100644
index 54a65e9760ae..000000000000
--- a/drivers/cdx/controller/mcdi.h
+++ /dev/null
@@ -1,242 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0
- *
- * Copyright 2008-2013 Solarflare Communications Inc.
- * Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
- */
-
-#ifndef CDX_MCDI_H
-#define CDX_MCDI_H
-
-#include <linux/mutex.h>
-#include <linux/kref.h>
-#include <linux/rpmsg.h>
-
-#include "bitfield.h"
-#include "mc_cdx_pcol.h"
-
-#ifdef DEBUG
-#define CDX_WARN_ON_ONCE_PARANOID(x) WARN_ON_ONCE(x)
-#define CDX_WARN_ON_PARANOID(x) WARN_ON(x)
-#else
-#define CDX_WARN_ON_ONCE_PARANOID(x) do {} while (0)
-#define CDX_WARN_ON_PARANOID(x) do {} while (0)
-#endif
-
-/**
- * enum cdx_mcdi_mode - MCDI transaction mode
- * @MCDI_MODE_EVENTS: wait for an mcdi response callback.
- * @MCDI_MODE_FAIL: we think MCDI is dead, so fail-fast all calls
- */
-enum cdx_mcdi_mode {
-	MCDI_MODE_EVENTS,
-	MCDI_MODE_FAIL,
-};
-
-#define MCDI_RPC_TIMEOUT	(10 * HZ)
-#define MCDI_RPC_LONG_TIMEOU	(60 * HZ)
-#define MCDI_RPC_POST_RST_TIME	(10 * HZ)
-
-#define MCDI_BUF_LEN (8 + MCDI_CTL_SDU_LEN_MAX)
-
-/**
- * enum cdx_mcdi_cmd_state - State for an individual MCDI command
- * @MCDI_STATE_QUEUED: Command not started and is waiting to run.
- * @MCDI_STATE_RETRY: Command was submitted and MC rejected with no resources,
- *	as MC have too many outstanding commands. Command will be retried once
- *	another command returns.
- * @MCDI_STATE_RUNNING: Command was accepted and is running.
- * @MCDI_STATE_RUNNING_CANCELLED: Command is running but the issuer cancelled
- *	the command.
- * @MCDI_STATE_FINISHED: Processing of this command has completed.
- */
-
-enum cdx_mcdi_cmd_state {
-	MCDI_STATE_QUEUED,
-	MCDI_STATE_RETRY,
-	MCDI_STATE_RUNNING,
-	MCDI_STATE_RUNNING_CANCELLED,
-	MCDI_STATE_FINISHED,
-};
-
-/**
- * struct cdx_mcdi - CDX MCDI Firmware interface, to interact
- *	with CDX controller.
- * @mcdi: MCDI interface
- * @mcdi_ops: MCDI operations
- * @r5_rproc : R5 Remoteproc device handle
- * @rpdev: RPMsg device
- * @ept: RPMsg endpoint
- * @work: Post probe work
- */
-struct cdx_mcdi {
-	/* MCDI interface */
-	struct cdx_mcdi_data *mcdi;
-	const struct cdx_mcdi_ops *mcdi_ops;
-
-	struct rproc *r5_rproc;
-	struct rpmsg_device *rpdev;
-	struct rpmsg_endpoint *ept;
-	struct work_struct work;
-};
-
-struct cdx_mcdi_ops {
-	void (*mcdi_request)(struct cdx_mcdi *cdx,
-			     const struct cdx_dword *hdr, size_t hdr_len,
-			     const struct cdx_dword *sdu, size_t sdu_len);
-	unsigned int (*mcdi_rpc_timeout)(struct cdx_mcdi *cdx, unsigned int cmd);
-};
-
-typedef void cdx_mcdi_async_completer(struct cdx_mcdi *cdx,
-				      unsigned long cookie, int rc,
-				      struct cdx_dword *outbuf,
-				      size_t outlen_actual);
-
-/**
- * struct cdx_mcdi_cmd - An outstanding MCDI command
- * @ref: Reference count. There will be one reference if the command is
- *	in the mcdi_iface cmd_list, another if it's on a cleanup list,
- *	and a third if it's queued in the work queue.
- * @list: The data for this entry in mcdi->cmd_list
- * @cleanup_list: The data for this entry in a cleanup list
- * @work: The work item for this command, queued in mcdi->workqueue
- * @mcdi: The mcdi_iface for this command
- * @state: The state of this command
- * @inlen: inbuf length
- * @inbuf: Input buffer
- * @quiet: Whether to silence errors
- * @reboot_seen: Whether a reboot has been seen during this command,
- *	to prevent duplicates
- * @seq: Sequence number
- * @started: Jiffies this command was started at
- * @cookie: Context for completion function
- * @completer: Completion function
- * @handle: Command handle
- * @cmd: Command number
- * @rc: Return code
- * @outlen: Length of output buffer
- * @outbuf: Output buffer
- */
-struct cdx_mcdi_cmd {
-	struct kref ref;
-	struct list_head list;
-	struct list_head cleanup_list;
-	struct work_struct work;
-	struct cdx_mcdi_iface *mcdi;
-	enum cdx_mcdi_cmd_state state;
-	size_t inlen;
-	const struct cdx_dword *inbuf;
-	bool quiet;
-	bool reboot_seen;
-	u8 seq;
-	unsigned long started;
-	unsigned long cookie;
-	cdx_mcdi_async_completer *completer;
-	unsigned int handle;
-	unsigned int cmd;
-	int rc;
-	size_t outlen;
-	struct cdx_dword *outbuf;
-	/* followed by inbuf data if necessary */
-};
-
-/**
- * struct cdx_mcdi_iface - MCDI protocol context
- * @cdx: The associated NIC
- * @iface_lock: Serialise access to this structure
- * @outstanding_cleanups: Count of cleanups
- * @cmd_list: List of outstanding and running commands
- * @workqueue: Workqueue used for delayed processing
- * @cmd_complete_wq: Waitqueue for command completion
- * @db_held_by: Command the MC doorbell is in use by
- * @seq_held_by: Command each sequence number is in use by
- * @prev_handle: The last used command handle
- * @mode: Poll for mcdi completion, or wait for an mcdi_event
- * @prev_seq: The last used sequence number
- * @new_epoch: Indicates start of day or start of MC reboot recovery
- */
-struct cdx_mcdi_iface {
-	struct cdx_mcdi *cdx;
-	/* Serialise access */
-	struct mutex iface_lock;
-	unsigned int outstanding_cleanups;
-	struct list_head cmd_list;
-	struct workqueue_struct *workqueue;
-	wait_queue_head_t cmd_complete_wq;
-	struct cdx_mcdi_cmd *db_held_by;
-	struct cdx_mcdi_cmd *seq_held_by[16];
-	unsigned int prev_handle;
-	enum cdx_mcdi_mode mode;
-	u8 prev_seq;
-	bool new_epoch;
-};
-
-/**
- * struct cdx_mcdi_data - extra state for NICs that implement MCDI
- * @iface: Interface/protocol state
- * @fn_flags: Flags for this function, as returned by %MC_CMD_DRV_ATTACH.
- */
-struct cdx_mcdi_data {
-	struct cdx_mcdi_iface iface;
-	u32 fn_flags;
-};
-
-static inline struct cdx_mcdi_iface *cdx_mcdi_if(struct cdx_mcdi *cdx)
-{
-	return cdx->mcdi ? &cdx->mcdi->iface : NULL;
-}
-
-int cdx_mcdi_init(struct cdx_mcdi *cdx);
-void cdx_mcdi_finish(struct cdx_mcdi *cdx);
-
-void cdx_mcdi_process_cmd(struct cdx_mcdi *cdx, struct cdx_dword *outbuf, int len);
-int cdx_mcdi_rpc(struct cdx_mcdi *cdx, unsigned int cmd,
-		 const struct cdx_dword *inbuf, size_t inlen,
-		 struct cdx_dword *outbuf, size_t outlen, size_t *outlen_actual);
-int cdx_mcdi_rpc_async(struct cdx_mcdi *cdx, unsigned int cmd,
-		       const struct cdx_dword *inbuf, size_t inlen,
-		       cdx_mcdi_async_completer *complete,
-		       unsigned long cookie);
-int cdx_mcdi_wait_for_quiescence(struct cdx_mcdi *cdx,
-				 unsigned int timeout_jiffies);
-
-/*
- * We expect that 16- and 32-bit fields in MCDI requests and responses
- * are appropriately aligned, but 64-bit fields are only
- * 32-bit-aligned.
- */
-#define MCDI_DECLARE_BUF(_name, _len) struct cdx_dword _name[DIV_ROUND_UP(_len, 4)] = {{0}}
-#define _MCDI_PTR(_buf, _offset)					\
-	((u8 *)(_buf) + (_offset))
-#define MCDI_PTR(_buf, _field)						\
-	_MCDI_PTR(_buf, MC_CMD_ ## _field ## _OFST)
-#define _MCDI_CHECK_ALIGN(_ofst, _align)				\
-	((void)BUILD_BUG_ON_ZERO((_ofst) & ((_align) - 1)),		\
-	 (_ofst))
-#define _MCDI_DWORD(_buf, _field)					\
-	((_buf) + (_MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, 4) >> 2))
-
-#define MCDI_BYTE(_buf, _field)						\
-	((void)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 1),	\
-	 *MCDI_PTR(_buf, _field))
-#define MCDI_WORD(_buf, _field)						\
-	((void)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2),	\
-	 le16_to_cpu(*(__force const __le16 *)MCDI_PTR(_buf, _field)))
-#define MCDI_SET_DWORD(_buf, _field, _value)				\
-	CDX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), CDX_DWORD, _value)
-#define MCDI_DWORD(_buf, _field)					\
-	CDX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), CDX_DWORD)
-#define MCDI_POPULATE_DWORD_1(_buf, _field, _name1, _value1)		\
-	CDX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field),		\
-			     MC_CMD_ ## _name1, _value1)
-#define MCDI_SET_QWORD(_buf, _field, _value)				\
-	do {								\
-		CDX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[0],	\
-				     CDX_DWORD, (u32)(_value));	\
-		CDX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[1],	\
-				     CDX_DWORD, (u64)(_value) >> 32);	\
-	} while (0)
-#define MCDI_QWORD(_buf, _field)					\
-	(CDX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[0], CDX_DWORD) |	\
-	(u64)CDX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[1], CDX_DWORD) << 32)
-
-#endif /* CDX_MCDI_H */