cregit-Linux how code gets into the kernel

Release 4.7 drivers/net/ethernet/brocade/bna/bfi.h

/*
 * Linux network driver for QLogic BR-series Converged Network Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */
/*
 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
 * Copyright (c) 2014-2015 QLogic Corporation
 * All rights reserved
 * www.qlogic.com
 */
#ifndef __BFI_H__

#define __BFI_H__

#include "bfa_defs.h"

/* BFI FW image type */

#define	BFI_FLASH_CHUNK_SZ			256	
/*!< Flash chunk size */

#define	BFI_FLASH_CHUNK_SZ_WORDS	(BFI_FLASH_CHUNK_SZ/sizeof(u32))

#define BFI_FLASH_IMAGE_SZ		0x100000

/* Msg header common to all msgs */

struct bfi_mhdr {
	
u8		msg_class;	/*!< @ref enum bfi_mclass           */
	
u8		msg_id;		/*!< msg opcode with in the class   */
	union {
		struct {
			
u8	qid;
			
u8	fn_lpu;	/*!< msg destination                */
		} 
__packed h2i;
		
u16	i2htok;	/*!< token in msgs to host          */
	} 
__packed mtag;
} 
__packed;


#define bfi_fn_lpu(__fn, __lpu)	((__fn) << 1 | (__lpu))

#define bfi_mhdr_2_fn(_mh)	((_mh)->mtag.h2i.fn_lpu >> 1)

#define bfi_mhdr_2_qid(_mh)	((_mh)->mtag.h2i.qid)


#define bfi_h2i_set(_mh, _mc, _op, _fn_lpu) do {            \
        (_mh).msg_class                 = (_mc);                \
        (_mh).msg_id                    = (_op);                \
        (_mh).mtag.h2i.fn_lpu   = (_fn_lpu);                    \
} while (0)


#define bfi_i2h_set(_mh, _mc, _op, _i2htok) do {            \
        (_mh).msg_class                 = (_mc);                \
        (_mh).msg_id                    = (_op);                \
        (_mh).mtag.i2htok               = (_i2htok);            \
} while (0)

/*
 * Message opcodes: 0-127 to firmware, 128-255 to host
 */

#define BFI_I2H_OPCODE_BASE	128

#define BFA_I2HM(_x)			((_x) + BFI_I2H_OPCODE_BASE)

/****************************************************************************
 *
 * Scatter Gather Element and Page definition
 *
 ****************************************************************************
 */

/* DMA addresses */

union bfi_addr_u {
	struct {
		
u32	addr_lo;
		
u32	addr_hi;
	} 
__packed a32;
} 
__packed;

/* Generic DMA addr-len pair. */

struct bfi_alen {
	
union bfi_addr_u	al_addr;	/* DMA addr of buffer   */
	
u32			al_len;		/* length of buffer */
} 
__packed;

/*
 * Large Message structure - 128 Bytes size Msgs
 */

#define BFI_LMSG_SZ		128

#define BFI_LMSG_PL_WSZ	\
			((BFI_LMSG_SZ - sizeof(struct bfi_mhdr)) / 4)

/* Mailbox message structure */

#define BFI_MBMSG_SZ		7

struct bfi_mbmsg {
	
struct bfi_mhdr mh;
	
u32		pl[BFI_MBMSG_SZ];
} 
__packed;

/* Supported PCI function class codes (personality) */

enum bfi_pcifn_class {
	
BFI_PCIFN_CLASS_FC	= 0x0c04,
	
BFI_PCIFN_CLASS_ETH	= 0x0200,
};

/* Message Classes */

enum bfi_mclass {
	
BFI_MC_IOC		= 1,	/*!< IO Controller (IOC)            */
	
BFI_MC_DIAG		= 2,	/*!< Diagnostic Msgs                */
	
BFI_MC_FLASH		= 3,	/*!< Flash message class            */
	
BFI_MC_CEE		= 4,	/*!< CEE                            */
	
BFI_MC_FCPORT		= 5,	/*!< FC port                        */
	
BFI_MC_IOCFC		= 6,	/*!< FC - IO Controller (IOC)       */
	
BFI_MC_LL		= 7,	/*!< Link Layer                     */
	
BFI_MC_UF		= 8,	/*!< Unsolicited frame receive      */
	
BFI_MC_FCXP		= 9,	/*!< FC Transport                   */
	
BFI_MC_LPS		= 10,	/*!< lport fc login services        */
	
BFI_MC_RPORT		= 11,	/*!< Remote port                    */
	
BFI_MC_ITNIM		= 12,	/*!< I-T nexus (Initiator mode)     */
	
BFI_MC_IOIM_READ	= 13,	/*!< read IO (Initiator mode)       */
	
BFI_MC_IOIM_WRITE	= 14,	/*!< write IO (Initiator mode)      */
	
BFI_MC_IOIM_IO		= 15,	/*!< IO (Initiator mode)            */
	
BFI_MC_IOIM		= 16,	/*!< IO (Initiator mode)            */
	
BFI_MC_IOIM_IOCOM	= 17,	/*!< good IO completion             */
	
BFI_MC_TSKIM		= 18,	/*!< Initiator Task management      */
	
BFI_MC_SBOOT		= 19,	/*!< SAN boot services              */
	
BFI_MC_IPFC		= 20,	/*!< IP over FC Msgs                */
	
BFI_MC_PORT		= 21,	/*!< Physical port                  */
	
BFI_MC_SFP		= 22,	/*!< SFP module                     */
	
BFI_MC_MSGQ		= 23,	/*!< MSGQ                           */
	
BFI_MC_ENET		= 24,	/*!< ENET commands/responses        */
	
BFI_MC_PHY		= 25,	/*!< External PHY message class     */
	
BFI_MC_NBOOT		= 26,	/*!< Network Boot                   */
	
BFI_MC_TIO_READ		= 27,	/*!< read IO (Target mode)          */
	
BFI_MC_TIO_WRITE	= 28,	/*!< write IO (Target mode)         */
	
BFI_MC_TIO_DATA_XFERED	= 29,	/*!< ds transferred (target mode)   */
	
BFI_MC_TIO_IO		= 30,	/*!< IO (Target mode)               */
	
BFI_MC_TIO		= 31,	/*!< IO (target mode)               */
	
BFI_MC_MFG		= 32,	/*!< MFG/ASIC block commands        */
	
BFI_MC_EDMA		= 33,	/*!< EDMA copy commands             */
	
BFI_MC_MAX		= 34
};


#define BFI_IOC_MSGLEN_MAX	32	
/* 32 bytes */


#define BFI_FWBOOT_ENV_OS		0

/*----------------------------------------------------------------------
 *                              IOC
 *----------------------------------------------------------------------
 */

/* Different asic generations */

enum bfi_asic_gen {
	
BFI_ASIC_GEN_CB		= 1,
	
BFI_ASIC_GEN_CT		= 2,
	
BFI_ASIC_GEN_CT2	= 3,
};


enum bfi_asic_mode {
	
BFI_ASIC_MODE_FC	= 1,	/* FC up to 8G speed            */
	
BFI_ASIC_MODE_FC16	= 2,	/* FC up to 16G speed           */
	
BFI_ASIC_MODE_ETH	= 3,	/* Ethernet ports               */
	
BFI_ASIC_MODE_COMBO	= 4,	/* FC 16G and Ethernet 10G port */
};


enum bfi_ioc_h2i_msgs {
	
BFI_IOC_H2I_ENABLE_REQ		= 1,
	
BFI_IOC_H2I_DISABLE_REQ		= 2,
	
BFI_IOC_H2I_GETATTR_REQ		= 3,
	
BFI_IOC_H2I_DBG_SYNC		= 4,
	
BFI_IOC_H2I_DBG_DUMP		= 5,
};


enum bfi_ioc_i2h_msgs {
	
BFI_IOC_I2H_ENABLE_REPLY	= BFA_I2HM(1),
	
BFI_IOC_I2H_DISABLE_REPLY	= BFA_I2HM(2),
	
BFI_IOC_I2H_GETATTR_REPLY	= BFA_I2HM(3),
	
BFI_IOC_I2H_HBEAT		= BFA_I2HM(4),
};

/* BFI_IOC_H2I_GETATTR_REQ message */

struct bfi_ioc_getattr_req {
	
struct bfi_mhdr mh;
	
union bfi_addr_u	attr_addr;
} 
__packed;


struct bfi_ioc_attr {
	
u64		mfg_pwwn;	/*!< Mfg port wwn          */
	
u64		mfg_nwwn;	/*!< Mfg node wwn          */
	
u8		mfg_mac[ETH_ALEN]; /*!< Mfg mac               */
	
u8		port_mode;	/* enum bfi_port_mode      */
	
u8		rsvd_a;
	
u64		pwwn;
	
u64		nwwn;
	
u8		mac[ETH_ALEN];	/*!< PBC or Mfg mac        */
	
u16	rsvd_b;
	
u8		fcoe_mac[ETH_ALEN];
	
u16	rsvd_c;
	
char		brcd_serialnum[STRSZ(BFA_MFG_SERIALNUM_SIZE)];
	
u8		pcie_gen;
	
u8		pcie_lanes_orig;
	
u8		pcie_lanes;
	
u8		rx_bbcredit;	/*!< receive buffer credits */
	
u32	adapter_prop;	/*!< adapter properties     */
	
u16	maxfrsize;	/*!< max receive frame size */
	
char		asic_rev;
	
u8		rsvd_d;
	
char		fw_version[BFA_VERSION_LEN];
	
char		optrom_version[BFA_VERSION_LEN];
	
struct bfa_mfg_vpd vpd;
	
u32	card_type;	/*!< card type                  */
} 
__packed;

/* BFI_IOC_I2H_GETATTR_REPLY message */

struct bfi_ioc_getattr_reply {
	
struct bfi_mhdr mh;	/*!< Common msg header          */
	
u8			status;	/*!< cfg reply status           */
	
u8			rsvd[3];
} 
__packed;

/* Firmware memory page offsets */

#define BFI_IOC_SMEM_PG0_CB	(0x40)

#define BFI_IOC_SMEM_PG0_CT	(0x180)

/* Firmware statistic offset */

#define BFI_IOC_FWSTATS_OFF	(0x6B40)

#define BFI_IOC_FWSTATS_SZ	(4096)

/* Firmware trace offset */

#define BFI_IOC_TRC_OFF		(0x4b00)

#define BFI_IOC_TRC_ENTS	256

#define BFI_IOC_TRC_ENT_SZ	16

#define BFI_IOC_TRC_HDR_SZ	32


#define BFI_IOC_FW_SIGNATURE	(0xbfadbfad)

#define BFI_IOC_FW_INV_SIGN	(0xdeaddead)

#define BFI_IOC_MD5SUM_SZ	4


struct bfi_ioc_fwver {
#ifdef __BIG_ENDIAN
	
u8 patch;
	
u8 maint;
	
u8 minor;
	
u8 major;
	
u8 rsvd[2];
	
u8 build;
	
u8 phase;
#else
	u8 major;
	u8 minor;
	u8 maint;
	u8 patch;
	u8 phase;
	u8 build;
	u8 rsvd[2];
#endif
} 
__packed;


struct bfi_ioc_image_hdr {
	
u32	signature;	/*!< constant signature */
	
u8	asic_gen;	/*!< asic generation */
	
u8	asic_mode;
	
u8	port0_mode;	/*!< device mode for port 0 */
	
u8	port1_mode;	/*!< device mode for port 1 */
	
u32	exec;		/*!< exec vector        */
	
u32	bootenv;	/*!< firmware boot env */
	
u32	rsvd_b[2];
	
struct bfi_ioc_fwver fwver;
	
u32	md5sum[BFI_IOC_MD5SUM_SZ];
} 
__packed;


enum bfi_ioc_img_ver_cmp {
	
BFI_IOC_IMG_VER_INCOMP,
	
BFI_IOC_IMG_VER_OLD,
	
BFI_IOC_IMG_VER_SAME,
	
BFI_IOC_IMG_VER_BETTER
};


#define BFI_FWBOOT_DEVMODE_OFF		4

#define BFI_FWBOOT_TYPE_OFF		8

#define BFI_FWBOOT_ENV_OFF		12

#define BFI_FWBOOT_DEVMODE(__asic_gen, __asic_mode, __p0_mode, __p1_mode) \
	(((u32)(__asic_gen)) << 24 |    \
         ((u32)(__asic_mode)) << 16 |   \
         ((u32)(__p0_mode)) << 8 |      \
         ((u32)(__p1_mode)))


enum bfi_fwboot_type {
	
BFI_FWBOOT_TYPE_NORMAL	= 0,
	
BFI_FWBOOT_TYPE_FLASH	= 1,
	
BFI_FWBOOT_TYPE_MEMTEST	= 2,
};


enum bfi_port_mode {
	
BFI_PORT_MODE_FC	= 1,
	
BFI_PORT_MODE_ETH	= 2,
};


struct bfi_ioc_hbeat {
	
struct bfi_mhdr mh;		/*!< common msg header          */
	
u32	   hb_count;	/*!< current heart beat count   */
} 
__packed;

/* IOC hardware/firmware state */

enum bfi_ioc_state {
	
BFI_IOC_UNINIT		= 0,	/*!< not initialized                 */
	
BFI_IOC_INITING		= 1,	/*!< h/w is being initialized        */
	
BFI_IOC_HWINIT		= 2,	/*!< h/w is initialized              */
	
BFI_IOC_CFG		= 3,	/*!< IOC configuration in progress   */
	
BFI_IOC_OP		= 4,	/*!< IOC is operational              */
	
BFI_IOC_DISABLING	= 5,	/*!< IOC is being disabled           */
	
BFI_IOC_DISABLED	= 6,	/*!< IOC is disabled                 */
	
BFI_IOC_CFG_DISABLED	= 7,	/*!< IOC is being disabled;transient */
	
BFI_IOC_FAIL		= 8,	/*!< IOC heart-beat failure          */
	
BFI_IOC_MEMTEST		= 9,	/*!< IOC is doing memtest            */
};

enum {
	
BFI_ADAPTER_TYPE_FC	= 0x01,		/*!< FC adapters           */
	
BFI_ADAPTER_TYPE_MK	= 0x0f0000,	/*!< adapter type mask     */
	
BFI_ADAPTER_TYPE_SH	= 16,	        /*!< adapter type shift    */
	
BFI_ADAPTER_NPORTS_MK	= 0xff00,	/*!< number of ports mask  */
	
BFI_ADAPTER_NPORTS_SH	= 8,	        /*!< number of ports shift */
	
BFI_ADAPTER_SPEED_MK	= 0xff,		/*!< adapter speed mask    */
	
BFI_ADAPTER_SPEED_SH	= 0,	        /*!< adapter speed shift   */
	
BFI_ADAPTER_PROTO	= 0x100000,	/*!< prototype adapaters   */
	
BFI_ADAPTER_TTV		= 0x200000,	/*!< TTV debug capable     */
	
BFI_ADAPTER_UNSUPP	= 0x400000,	/*!< unknown adapter type  */
};


#define BFI_ADAPTER_GETP(__prop, __adap_prop)			\
	(((__adap_prop) & BFI_ADAPTER_ ## __prop ## _MK) >>     \
                BFI_ADAPTER_ ## __prop ## _SH)

#define BFI_ADAPTER_SETP(__prop, __val)				\
	((__val) << BFI_ADAPTER_ ## __prop ## _SH)

#define BFI_ADAPTER_IS_SPECIAL(__adap_type)			\
	((__adap_type) & (BFI_ADAPTER_TTV | BFI_ADAPTER_PROTO | \
                        BFI_ADAPTER_UNSUPP))

/* BFI_IOC_H2I_ENABLE_REQ & BFI_IOC_H2I_DISABLE_REQ messages */

struct bfi_ioc_ctrl_req {
	
struct bfi_mhdr mh;
	
u16			clscode;
	
u16			rsvd;
	
u32		tv_sec;
} 
__packed;

/* BFI_IOC_I2H_ENABLE_REPLY & BFI_IOC_I2H_DISABLE_REPLY messages */

struct bfi_ioc_ctrl_reply {
	
struct bfi_mhdr mh;			/*!< Common msg header     */
	
u8			status;		/*!< enable/disable status */
	
u8			port_mode;	/*!< enum bfa_mode */
	
u8			cap_bm;		/*!< capability bit mask */
	
u8			rsvd;
} 
__packed;


#define BFI_IOC_MSGSZ   8
/* H2I Messages */

union bfi_ioc_h2i_msg_u {
	
struct bfi_mhdr mh;
	
struct bfi_ioc_ctrl_req enable_req;
	
struct bfi_ioc_ctrl_req disable_req;
	
struct bfi_ioc_getattr_req getattr_req;
	
u32			mboxmsg[BFI_IOC_MSGSZ];
} 
__packed;

/* I2H Messages */

union bfi_ioc_i2h_msg_u {
	
struct bfi_mhdr mh;
	
struct bfi_ioc_ctrl_reply fw_event;
	
u32			mboxmsg[BFI_IOC_MSGSZ];
} 
__packed;

/*----------------------------------------------------------------------
 *                              MSGQ
 *----------------------------------------------------------------------
 */


enum bfi_msgq_h2i_msgs {
	
BFI_MSGQ_H2I_INIT_REQ	   = 1,
	
BFI_MSGQ_H2I_DOORBELL_PI	= 2,
	
BFI_MSGQ_H2I_DOORBELL_CI	= 3,
	
BFI_MSGQ_H2I_CMDQ_COPY_RSP      = 4,
};


enum bfi_msgq_i2h_msgs {
	
BFI_MSGQ_I2H_INIT_RSP	   = BFA_I2HM(BFI_MSGQ_H2I_INIT_REQ),
	
BFI_MSGQ_I2H_DOORBELL_PI	= BFA_I2HM(BFI_MSGQ_H2I_DOORBELL_PI),
	
BFI_MSGQ_I2H_DOORBELL_CI	= BFA_I2HM(BFI_MSGQ_H2I_DOORBELL_CI),
	
BFI_MSGQ_I2H_CMDQ_COPY_REQ      = BFA_I2HM(BFI_MSGQ_H2I_CMDQ_COPY_RSP),
};

/* Messages(commands/responsed/AENS will have the following header */

struct bfi_msgq_mhdr {
	
u8	msg_class;
	
u8	msg_id;
	
u16	msg_token;
	
u16	num_entries;
	
u8	enet_id;
	
u8	rsvd[1];
} 
__packed;


#define bfi_msgq_mhdr_set(_mh, _mc, _mid, _tok, _enet_id) do {    \
        (_mh).msg_class  = (_mc);       \
        (_mh).msg_id        = (_mid);       \
        (_mh).msg_token  = (_tok);       \
        (_mh).enet_id      = (_enet_id);   \
} while (0)

/*
 * Mailbox  for messaging interface
 */

#define BFI_MSGQ_CMD_ENTRY_SIZE	 (64)    
/* TBD */

#define BFI_MSGQ_RSP_ENTRY_SIZE	 (64)    
/* TBD */


#define bfi_msgq_num_cmd_entries(_size)				 \
	(((_size) + BFI_MSGQ_CMD_ENTRY_SIZE - 1) / BFI_MSGQ_CMD_ENTRY_SIZE)


struct bfi_msgq {
	
union bfi_addr_u addr;
	
u16 q_depth;     /* Total num of entries in the queue */
	
u8 rsvd[2];
} 
__packed;

/* BFI_ENET_MSGQ_CFG_REQ TBD init or cfg? */

struct bfi_msgq_cfg_req {
	
struct bfi_mhdr mh;
	
struct bfi_msgq cmdq;
	
struct bfi_msgq rspq;
} 
__packed;

/* BFI_ENET_MSGQ_CFG_RSP */

struct bfi_msgq_cfg_rsp {
	
struct bfi_mhdr mh;
	
u8 cmd_status;
	
u8 rsvd[3];
} 
__packed;

/* BFI_MSGQ_H2I_DOORBELL */

struct bfi_msgq_h2i_db {
	
struct bfi_mhdr mh;
	union {
		
u16 cmdq_pi;
		
u16 rspq_ci;
	} 
__packed idx;
} 
__packed;

/* BFI_MSGQ_I2H_DOORBELL */

struct bfi_msgq_i2h_db {
	
struct bfi_mhdr mh;
	union {
		
u16 rspq_pi;
		
u16 cmdq_ci;
	} 
__packed idx;
} 
__packed;


#define BFI_CMD_COPY_SZ 28

/* BFI_MSGQ_H2I_CMD_COPY_RSP */

struct bfi_msgq_h2i_cmdq_copy_rsp {
	
struct bfi_mhdr mh;
	
u8	      data[BFI_CMD_COPY_SZ];
} 
__packed;

/* BFI_MSGQ_I2H_CMD_COPY_REQ */

struct bfi_msgq_i2h_cmdq_copy_req {
	
struct bfi_mhdr mh;
	
u16     offset;
	
u16     len;
} 
__packed;

/*
 *      FLASH module specific
 */

enum bfi_flash_h2i_msgs {
	
BFI_FLASH_H2I_QUERY_REQ = 1,
	
BFI_FLASH_H2I_ERASE_REQ = 2,
	
BFI_FLASH_H2I_WRITE_REQ = 3,
	
BFI_FLASH_H2I_READ_REQ = 4,
	
BFI_FLASH_H2I_BOOT_VER_REQ = 5,
};


enum bfi_flash_i2h_msgs {
	
BFI_FLASH_I2H_QUERY_RSP = BFA_I2HM(1),
	
BFI_FLASH_I2H_ERASE_RSP = BFA_I2HM(2),
	
BFI_FLASH_I2H_WRITE_RSP = BFA_I2HM(3),
	
BFI_FLASH_I2H_READ_RSP = BFA_I2HM(4),
	
BFI_FLASH_I2H_BOOT_VER_RSP = BFA_I2HM(5),
	
BFI_FLASH_I2H_EVENT = BFA_I2HM(127),
};

/*
 * Flash query request
 */

struct bfi_flash_query_req {
	
struct bfi_mhdr mh;   /* Common msg header */
	
struct bfi_alen alen;
} 
__packed;

/*
 * Flash write request
 */

struct bfi_flash_write_req {
	
struct bfi_mhdr mh;	/* Common msg header */
	
struct bfi_alen alen;
	
u32	type;   /* partition type */
	
u8	instance; /* partition instance */
	
u8	last;
	
u8	rsv[2];
	
u32	offset;
	
u32	length;
} 
__packed;

/*
 * Flash read request
 */

struct bfi_flash_read_req {
	
struct bfi_mhdr mh;	/* Common msg header */
	
u32	type;		/* partition type */
	
u8	instance;	/* partition instance */
	
u8	rsv[3];
	
u32	offset;
	
u32	length;
	
struct bfi_alen alen;
} 
__packed;

/*
 * Flash query response
 */

struct bfi_flash_query_rsp {
	
struct bfi_mhdr mh;	/* Common msg header */
	
u32	status;
} 
__packed;

/*
 * Flash read response
 */

struct bfi_flash_read_rsp {
	
struct bfi_mhdr mh;	/* Common msg header */
	
u32	type;		/* partition type */
	
u8	instance;	/* partition instance */
	
u8	rsv[3];
	
u32	status;
	
u32	length;
} 
__packed;

/*
 * Flash write response
 */

struct bfi_flash_write_rsp {
	
struct bfi_mhdr mh;	/* Common msg header */
	
u32	type;		/* partition type */
	
u8	instance;	/* partition instance */
	
u8	rsv[3];
	
u32	status;
	
u32	length;
} 
__packed;

#endif /* __BFI_H__ */

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