path: root/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h

/* bnx2x_sp.h: Qlogic Everest network driver.
 *
 * Copyright 2011-2013 Broadcom Corporation
 * Copyright (c) 2014 QLogic Corporation
 * All rights reserved
 *
 * Unless you and Qlogic execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2, available
 * at http://www.gnu.org/licenses/gpl-2.0.html (the "GPL").
 *
 * Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Qlogic software provided under a
 * license other than the GPL, without Qlogic's express prior written
 * consent.
 *
 * Maintained by: Ariel Elior <ariel.elior@qlogic.com>
 * Written by: Vladislav Zolotarov
 *
 */
#ifndef BNX2X_SP_VERBS
#define BNX2X_SP_VERBS

struct bnx2x;
struct eth_context;

/* Bits representing general command's configuration */
enum {
	RAMROD_TX,
	RAMROD_RX,
	/* Wait until all pending commands complete */
	RAMROD_COMP_WAIT,
	/* Don't send a ramrod, only update a registry */
	RAMROD_DRV_CLR_ONLY,
	/* Configure HW according to the current object state */
	RAMROD_RESTORE,
	 /* Execute the next command now */
	RAMROD_EXEC,
	/* Don't add a new command and continue execution of postponed
	 * commands. If not set a new command will be added to the
	 * pending commands list.
	 */
	RAMROD_CONT,
	/* If there is another pending ramrod, wait until it finishes and
	 * re-try to submit this one. This flag can be set only in sleepable
	 * context, and should not be set from the context that completes the
	 * ramrods as deadlock will occur.
	 */
	RAMROD_RETRY,
};

typedef enum {
	BNX2X_OBJ_TYPE_RX,
	BNX2X_OBJ_TYPE_TX,
	BNX2X_OBJ_TYPE_RX_TX,
} bnx2x_obj_type;

/* Public slow path states */
enum {
	BNX2X_FILTER_MAC_PENDING,
	BNX2X_FILTER_VLAN_PENDING,
	BNX2X_FILTER_VLAN_MAC_PENDING,
	BNX2X_FILTER_RX_MODE_PENDING,
	BNX2X_FILTER_RX_MODE_SCHED,
	BNX2X_FILTER_ISCSI_ETH_START_SCHED,
	BNX2X_FILTER_ISCSI_ETH_STOP_SCHED,
	BNX2X_FILTER_FCOE_ETH_START_SCHED,
	BNX2X_FILTER_FCOE_ETH_STOP_SCHED,
	BNX2X_FILTER_MCAST_PENDING,
	BNX2X_FILTER_MCAST_SCHED,
	BNX2X_FILTER_RSS_CONF_PENDING,
	BNX2X_AFEX_FCOE_Q_UPDATE_PENDING,
	BNX2X_AFEX_PENDING_VIFSET_MCP_ACK
};

struct bnx2x_raw_obj {
	u8		func_id;

	/* Queue params */
	u8		cl_id;
	u32		cid;

	/* Ramrod data buffer params */
	void		*rdata;
	dma_addr_t	rdata_mapping;

	/* Ramrod state params */
	int		state;   /* "ramrod is pending" state bit */
	unsigned long	*pstate; /* pointer to state buffer */

	bnx2x_obj_type	obj_type;

	int (*wait_comp)(struct bnx2x *bp,
			 struct bnx2x_raw_obj *o);

	bool (*check_pending)(struct bnx2x_raw_obj *o);
	void (*clear_pending)(struct bnx2x_raw_obj *o);
	void (*set_pending)(struct bnx2x_raw_obj *o);
};

/************************* VLAN-MAC commands related parameters ***************/
struct bnx2x_mac_ramrod_data {
	u8 mac[ETH_ALEN];
	u8 is_inner_mac;
};

struct bnx2x_vlan_ramrod_data {
	u16 vlan;
};

struct bnx2x_vlan_mac_ramrod_data {
	u8 mac[ETH_ALEN];
	u8 is_inner_mac;
	u16 vlan;
};

union bnx2x_classification_ramrod_data {
	struct bnx2x_mac_ramrod_data mac;
	struct bnx2x_vlan_ramrod_data vlan;
	struct bnx2x_vlan_mac_ramrod_data vlan_mac;
};

/* VLAN_MAC commands */
enum bnx2x_vlan_mac_cmd {
	BNX2X_VLAN_MAC_ADD,
	BNX2X_VLAN_MAC_DEL,
	BNX2X_VLAN_MAC_MOVE,
};

struct bnx2x_vlan_mac_data {
	/* Requested command: BNX2X_VLAN_MAC_XX */
	enum bnx2x_vlan_mac_cmd cmd;
	/* used to contain the data related vlan_mac_flags bits from
	 * ramrod parameters.
	 */
	unsigned long vlan_mac_flags;

	/* Needed for MOVE command */
	struct bnx2x_vlan_mac_obj *target_obj;

	union bnx2x_classification_ramrod_data u;
};

/*************************** Exe Queue obj ************************************/
union bnx2x_exe_queue_cmd_data {
	struct bnx2x_vlan_mac_data vlan_mac;

	struct {
		/* TODO */
	} mcast;
};

struct bnx2x_exeq_elem {
	struct list_head		link;

	/* Length of this element in the exe_chunk. */
	int				cmd_len;

	union bnx2x_exe_queue_cmd_data	cmd_data;
};

union bnx2x_qable_obj;

union bnx2x_exeq_comp_elem {
	union event_ring_elem *elem;
};

struct bnx2x_exe_queue_obj;

typedef int (*exe_q_validate)(struct bnx2x *bp,
			      union bnx2x_qable_obj *o,
			      struct bnx2x_exeq_elem *elem);

typedef int (*exe_q_remove)(struct bnx2x *bp,
			    union bnx2x_qable_obj *o,
			    struct bnx2x_exeq_elem *elem);

/* Return positive if entry was optimized, 0 - if not, negative
 * in case of an error.
 */
typedef int (*exe_q_optimize)(struct bnx2x *bp,
			      union bnx2x_qable_obj *o,
			      struct bnx2x_exeq_elem *elem);
typedef int (*exe_q_execute)(struct bnx2x *bp,
			     union bnx2x_qable_obj *o,
			     struct list_head *exe_chunk,
			     unsigned long *ramrod_flags);
typedef struct bnx2x_exeq_elem *
			(*exe_q_get)(struct bnx2x_exe_queue_obj *o,
				     struct bnx2x_exeq_elem *elem);

struct bnx2x_exe_queue_obj {
	/* Commands pending for an execution. */
	struct list_head	exe_queue;

	/* Commands pending for an completion. */
	struct list_head	pending_comp;

	spinlock_t		lock;

	/* Maximum length of commands' list for one execution */
	int			exe_chunk_len;

	union bnx2x_qable_obj	*owner;

	/****** Virtual functions ******/
	/**
	 * Called before commands execution for commands that are really
	 * going to be executed (after 'optimize').
	 *
	 * Must run under exe_queue->lock
	 */
	exe_q_validate		validate;

	/**
	 * Called before removing pending commands, cleaning allocated
	 * resources (e.g., credits from validate)
	 */
	 exe_q_remove		remove;

	/**
	 * This will try to cancel the current pending commands list
	 * considering the new command.
	 *
	 * Returns the number of optimized commands or a negative error code
	 *
	 * Must run under exe_queue->lock
	 */
	exe_q_optimize		optimize;

	/**
	 * Run the next commands chunk (owner specific).
	 */
	exe_q_execute		execute;

	/**
	 * Return the exe_queue element containing the specific command
	 * if any. Otherwise return NULL.
	 */
	exe_q_get		get;
};
/***************** Classification verbs: Set/Del MAC/VLAN/VLAN-MAC ************/
/*
 * Element in the VLAN_MAC registry list having all currently configured
 * rules.
 */
struct bnx2x_vlan_mac_registry_elem {
	struct list_head	link;

	/* Used to store the cam offset used for the mac/vlan/vlan-mac.
	 * Relevant for 57710 and 57711 only. VLANs and MACs share the
	 * same CAM for these chips.
	 */
	int			cam_offset;

	/* Needed for DE