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linux/drivers/net/bna/bfi.h
Rasesh Mody 79ea6c8966 bna: fix for clean fw re-initialization 
During a kernel crash, bna control path state machine and firmware do not
get a notification and hence are not cleanly shutdown. The registers
holding driver/IOC state information are not reset back to valid
disabled/parking values. This causes subsequent driver initialization
to hang during kdump kernel boot. This patch, during the initialization
of first PCI function, resets corresponding register when unclean shutown
is detect by reading chip registers. This will make sure that ioc/fw
gets clean re-initialization.

Signed-off-by: Debashis Dutt <ddutt@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-14 13:39:44 -07:00

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/*
* Linux network driver for Brocade 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) 2005-2010 Brocade Communications Systems, Inc.
* All rights reserved
* www.brocade.com
*/
#ifndef __BFI_H__
#define __BFI_H__
#include "bfa_defs.h"
#pragma pack(1)
/**
* 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))
enum {
BFI_IMAGE_CB_FC,
BFI_IMAGE_CT_FC,
BFI_IMAGE_CT_CNA,
BFI_IMAGE_MAX,
};
/**
* 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 rsvd;
u8 lpu_id; /*!< msg destination */
} h2i;
u16 i2htok; /*!< token in msgs to host */
} mtag;
};
#define bfi_h2i_set(_mh, _mc, _op, _lpuid) do { \
(_mh).msg_class = (_mc); \
(_mh).msg_id = (_op); \
(_mh).mtag.h2i.lpu_id = (_lpuid); \
} 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
*
****************************************************************************
*/
#define BFI_SGE_INLINE 1
#define BFI_SGE_INLINE_MAX (BFI_SGE_INLINE + 1)
/**
* SG Flags
*/
enum {
BFI_SGE_DATA = 0, /*!< data address, not last */
BFI_SGE_DATA_CPL = 1, /*!< data addr, last in current page */
BFI_SGE_DATA_LAST = 3, /*!< data address, last */
BFI_SGE_LINK = 2, /*!< link address */
BFI_SGE_PGDLEN = 2, /*!< cumulative data length for page */
};
/**
* DMA addresses
*/
union bfi_addr_u {
struct {
u32 addr_lo;
u32 addr_hi;
} a32;
};
/**
* Scatter Gather Element
*/
struct bfi_sge {
#ifdef __BIGENDIAN
u32 flags:2,
rsvd:2,
sg_len:28;
#else
u32 sg_len:28,
rsvd:2,
flags:2;
#endif
union bfi_addr_u sga;
};
/**
* Scatter Gather Page
*/
#define BFI_SGPG_DATA_SGES 7
#define BFI_SGPG_SGES_MAX (BFI_SGPG_DATA_SGES + 1)
#define BFI_SGPG_RSVD_WD_LEN 8
struct bfi_sgpg {
struct bfi_sge sges[BFI_SGPG_SGES_MAX];
u32 rsvd[BFI_SGPG_RSVD_WD_LEN];
};
/*
* 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)
struct bfi_msg {
struct bfi_mhdr mhdr;
u32 pl[BFI_LMSG_PL_WSZ];
};
/**
* Mailbox message structure
*/
#define BFI_MBMSG_SZ 7
struct bfi_mbmsg {
struct bfi_mhdr mh;
u32 pl[BFI_MBMSG_SZ];
};
/**
* 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_MAX = 32
};
#define BFI_IOC_MAX_CQS 4
#define BFI_IOC_MAX_CQS_ASIC 8
#define BFI_IOC_MSGLEN_MAX 32 /* 32 bytes */
#define BFI_BOOT_TYPE_OFF 8
#define BFI_BOOT_LOADER_OFF 12
#define BFI_BOOT_TYPE_NORMAL 0
#define BFI_BOOT_TYPE_FLASH 1
#define BFI_BOOT_TYPE_MEMTEST 2
#define BFI_BOOT_LOADER_OS 0
#define BFI_BOOT_MEMTEST_RES_ADDR 0x900
#define BFI_BOOT_MEMTEST_RES_SIG 0xA0A1A2A3
/**
*----------------------------------------------------------------------
* IOC
*----------------------------------------------------------------------
*/
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_READY_EVENT = BFA_I2HM(4),
BFI_IOC_I2H_HBEAT = BFA_I2HM(5),
};
/**
* BFI_IOC_H2I_GETATTR_REQ message
*/
struct bfi_ioc_getattr_req {
struct bfi_mhdr mh;
union bfi_addr_u attr_addr;
};
struct bfi_ioc_attr {
u64 mfg_pwwn; /*!< Mfg port wwn */
u64 mfg_nwwn; /*!< Mfg node wwn */
mac_t mfg_mac; /*!< Mfg mac */
u16 rsvd_a;
u64 pwwn;
u64 nwwn;
mac_t mac; /*!< PBC or Mfg mac */
u16 rsvd_b;
mac_t fcoe_mac;
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 */
};
/**
* 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];
};
/**
* 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_FW_SIGNATURE (0xbfadbfad)
#define BFI_IOC_MD5SUM_SZ 4
struct bfi_ioc_image_hdr {
u32 signature; /*!< constant signature */
u32 rsvd_a;
u32 exec; /*!< exec vector */
u32 param; /*!< parameters */
u32 rsvd_b[4];
u32 md5sum[BFI_IOC_MD5SUM_SZ];
};
/**
* BFI_IOC_I2H_READY_EVENT message
*/
struct bfi_ioc_rdy_event {
struct bfi_mhdr mh; /*!< common msg header */
u8 init_status; /*!< init event status */
u8 rsvd[3];
};
struct bfi_ioc_hbeat {
struct bfi_mhdr mh; /*!< common msg header */
u32 hb_count; /*!< current heart beat count */
};
/**
* 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 */
};
#define BFI_IOC_ENDIAN_SIG 0x12345678
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_PROTO(__adap_type) \
((__adap_type) & BFI_ADAPTER_PROTO)
#define BFI_ADAPTER_IS_TTV(__adap_type) \
((__adap_type) & BFI_ADAPTER_TTV)
#define BFI_ADAPTER_IS_UNSUPP(__adap_type) \
((__adap_type) & BFI_ADAPTER_UNSUPP)
#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;
u8 ioc_class;
u8 rsvd[3];
u32 tv_sec;
};
/**
* 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 rsvd[3];
};
#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];
};
/**
* I2H Messages
*/
union bfi_ioc_i2h_msg_u {
struct bfi_mhdr mh;
struct bfi_ioc_rdy_event rdy_event;
u32 mboxmsg[BFI_IOC_MSGSZ];
};
#pragma pack()
#endif /* __BFI_H__ */
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