Orange Pi5 kernel

 /*
 * This file is part of the Chelsio FCoE driver for Linux.
 *
 * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
 
#ifndef __CSIO_LNODE_H__
#define __CSIO_LNODE_H__
 
#include <linux/kref.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
#include <scsi/fc/fc_els.h>
 
 
#include "csio_defs.h"
#include "csio_hw.h"
 
#define CSIO_FCOE_MAX_NPIV	128
#define CSIO_FCOE_MAX_RNODES	2048
 
/* FDMI port attribute unknown speed */
#define CSIO_HBA_PORTSPEED_UNKNOWN	0x8000
 
extern int csio_fcoe_rnodes;
extern int csio_fdmi_enable;
 
/* State machine evets */
enum csio_ln_ev {
<------>CSIO_LNE_NONE = (uint32_t)0,
<------>CSIO_LNE_LINKUP,
<------>CSIO_LNE_FAB_INIT_DONE,
<------>CSIO_LNE_LINK_DOWN,
<------>CSIO_LNE_DOWN_LINK,
<------>CSIO_LNE_LOGO,
<------>CSIO_LNE_CLOSE,
<------>CSIO_LNE_MAX_EVENT,
};
 
 
struct csio_fcf_info {
<------>struct list_head	list;
<------>uint8_t			priority;
<------>uint8_t			mac[6];
<------>uint8_t			name_id[8];
<------>uint8_t			fabric[8];
<------>uint16_t		vf_id;
<------>uint8_t			vlan_id;
<------>uint16_t		max_fcoe_size;
<------>uint8_t			fc_map[3];
<------>uint32_t		fka_adv;
<------>uint32_t		fcfi;
<------>uint8_t			get_next:1;
<------>uint8_t			link_aff:1;
<------>uint8_t			fpma:1;
<------>uint8_t			spma:1;
<------>uint8_t			login:1;
<------>uint8_t			portid;
<------>uint8_t			spma_mac[6];
<------>struct kref		kref;
};
 
/* Defines for flags */
#define	CSIO_LNF_FIPSUPP		0x00000001	/* Fip Supported */
#define	CSIO_LNF_NPIVSUPP		0x00000002	/* NPIV supported */
#define CSIO_LNF_LINK_ENABLE		0x00000004	/* Link enabled */
#define	CSIO_LNF_FDMI_ENABLE		0x00000008	/* FDMI support */
 
/* Transport events */
enum csio_ln_fc_evt {
<------>CSIO_LN_FC_LINKUP = 1,
<------>CSIO_LN_FC_LINKDOWN,
<------>CSIO_LN_FC_RSCN,
<------>CSIO_LN_FC_ATTRIB_UPDATE,
};
 
/* Lnode stats */
struct csio_lnode_stats {
<------>uint32_t	n_link_up;	/* Link down */
<------>uint32_t	n_link_down;	/* Link up */
<------>uint32_t	n_err;		/* error */
<------>uint32_t	n_err_nomem;	/* memory not available */
<------>uint32_t	n_inval_parm;   /* Invalid parameters */
<------>uint32_t	n_evt_unexp;	/* unexpected event */
<------>uint32_t	n_evt_drop;	/* dropped event */
<------>uint32_t	n_rnode_match;  /* matched rnode */
<------>uint32_t	n_dev_loss_tmo; /* Device loss timeout */
<------>uint32_t	n_fdmi_err;	/* fdmi err */
<------>uint32_t	n_evt_fw[PROTO_ERR_IMPL_LOGO + 1];	/* fw events */
<------>enum csio_ln_ev	n_evt_sm[CSIO_LNE_MAX_EVENT];	/* State m/c events */
<------>uint32_t	n_rnode_alloc;	/* rnode allocated */
<------>uint32_t	n_rnode_free;	/* rnode freed */
<------>uint32_t	n_rnode_nomem;	/* rnode alloc failure */
<------>uint32_t        n_input_requests; /* Input Requests */
<------>uint32_t        n_output_requests; /* Output Requests */
<------>uint32_t        n_control_requests; /* Control Requests */
<------>uint32_t        n_input_bytes; /* Input Bytes */
<------>uint32_t        n_output_bytes; /* Output Bytes */
<------>uint32_t	rsvd1;
};
 
/* Common Lnode params */
struct csio_lnode_params {
<------>uint32_t	ra_tov;
<------>uint32_t	fcfi;
<------>uint32_t	log_level;	/* Module level for debugging */
};
 
struct csio_service_parms {
<------>struct fc_els_csp	csp;		/* Common service parms */
<------>uint8_t			wwpn[8];	/* WWPN */
<------>uint8_t			wwnn[8];	/* WWNN */
<------>struct fc_els_cssp	clsp[4];	/* Class service params */
<------>uint8_t			vvl[16];	/* Vendor version level */
};
 
/* Lnode */
struct csio_lnode {
<------>struct csio_sm		sm;		/* State machine + sibling
<------><------><------><------><------><------> * lnode list.
<------><------><------><------><------><------> */
<------>struct csio_hw		*hwp;		/* Pointer to the HW module */
<------>uint8_t			portid;		/* Port ID */
<------>uint8_t			rsvd1;
<------>uint16_t		rsvd2;
<------>uint32_t		dev_num;	/* Device number */
<------>uint32_t		flags;		/* Flags */
<------>struct list_head	fcf_lsthead;	/* FCF entries */
<------>struct csio_fcf_info	*fcfinfo;	/* FCF in use */
<------>struct csio_ioreq	*mgmt_req;	/* MGMT request */
 
<------>/* FCoE identifiers */
<------>uint8_t			mac[6];
<------>uint32_t		nport_id;
<------>struct csio_service_parms ln_sparm;	/* Service parms */
 
<------>/* Firmware identifiers */
<------>uint32_t		fcf_flowid;	/*fcf flowid */
<------>uint32_t		vnp_flowid;
<------>uint16_t		ssn_cnt;	/* Registered Session */
<------>uint8_t			cur_evt;	/* Current event */
<------>uint8_t			prev_evt;	/* Previous event */
 
<------>/* Children */
<------>struct list_head	cln_head;	/* Head of the children lnode
<------><------><------><------><------><------> * list.
<------><------><------><------><------><------> */
<------>uint32_t		num_vports;	/* Total NPIV/children LNodes*/
<------>struct csio_lnode	*pln;		/* Parent lnode of child
<------><------><------><------><------><------> * lnodes.
<------><------><------><------><------><------> */
<------>struct list_head	cmpl_q;		/* Pending I/Os on this lnode */
 
<------>/* Remote node information */
<------>struct list_head	rnhead;		/* Head of rnode list */
<------>uint32_t		num_reg_rnodes;	/* Number of rnodes registered
<------><------><------><------><------><------> * with the host.
<------><------><------><------><------><------> */
<------>uint32_t		n_scsi_tgts;	/* Number of scsi targets
<------><------><------><------><------><------> * found
<------><------><------><------><------><------> */
<------>uint32_t		last_scan_ntgts;/* Number of scsi targets
<------><------><------><------><------><------> * found per last scan.
<------><------><------><------><------><------> */
<------>uint32_t		tgt_scan_tick;	/* timer started after
<------><------><------><------><------><------> * new tgt found
<------><------><------><------><------><------> */
<------>/* FC transport data */
<------>struct fc_vport		*fc_vport;
<------>struct fc_host_statistics fch_stats;
 
<------>struct csio_lnode_stats stats;		/* Common lnode stats */
<------>struct csio_lnode_params params;	/* Common lnode params */
};
 
#define	csio_lnode_to_hw(ln)	((ln)->hwp)
#define csio_root_lnode(ln)	(csio_lnode_to_hw((ln))->rln)
#define csio_parent_lnode(ln)	((ln)->pln)
#define	csio_ln_flowid(ln)	((ln)->vnp_flowid)
#define csio_ln_wwpn(ln)	((ln)->ln_sparm.wwpn)
#define csio_ln_wwnn(ln)	((ln)->ln_sparm.wwnn)
 
#define csio_is_root_ln(ln)	(((ln) == csio_root_lnode((ln))) ? 1 : 0)
#define csio_is_phys_ln(ln)	(((ln)->pln == NULL) ? 1 : 0)
#define csio_is_npiv_ln(ln)	(((ln)->pln != NULL) ? 1 : 0)
 
 
#define csio_ln_dbg(_ln, _fmt, ...)	\
<------>csio_dbg(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \
<------><------> CSIO_DEVID_LO(_ln), ##__VA_ARGS__);
 
#define csio_ln_err(_ln, _fmt, ...)	\
<------>csio_err(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \
<------><------> CSIO_DEVID_LO(_ln), ##__VA_ARGS__);
 
#define csio_ln_warn(_ln, _fmt, ...)	\
<------>csio_warn(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \
<------><------> CSIO_DEVID_LO(_ln), ##__VA_ARGS__);
 
/* HW->Lnode notifications */
enum csio_ln_notify {
<------>CSIO_LN_NOTIFY_HWREADY = 1,
<------>CSIO_LN_NOTIFY_HWSTOP,
<------>CSIO_LN_NOTIFY_HWREMOVE,
<------>CSIO_LN_NOTIFY_HWRESET,
};
 
void csio_fcoe_fwevt_handler(struct csio_hw *,  __u8 cpl_op, __be64 *);
int csio_is_lnode_ready(struct csio_lnode *);
void csio_lnode_state_to_str(struct csio_lnode *ln, int8_t *str);
struct csio_lnode *csio_lnode_lookup_by_wwpn(struct csio_hw *, uint8_t *);
int csio_get_phy_port_stats(struct csio_hw *, uint8_t ,
<------><------><------><------>      struct fw_fcoe_port_stats *);
int csio_scan_done(struct csio_lnode *, unsigned long, unsigned long,
<------><------>   unsigned long, unsigned long);
void csio_notify_lnodes(struct csio_hw *, enum csio_ln_notify);
void csio_disable_lnodes(struct csio_hw *, uint8_t, bool);
void csio_lnode_async_event(struct csio_lnode *, enum csio_ln_fc_evt);
int csio_ln_fdmi_start(struct csio_lnode *, void *);
int csio_lnode_start(struct csio_lnode *);
void csio_lnode_stop(struct csio_lnode *);
void csio_lnode_close(struct csio_lnode *);
int csio_lnode_init(struct csio_lnode *, struct csio_hw *,
<------><------><------>      struct csio_lnode *);
void csio_lnode_exit(struct csio_lnode *);
 
#endif /* ifndef __CSIO_LNODE_H__ */

	/*
	* This file is part of the Chelsio FCoE driver for Linux.
	*
	* Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
	*
	* This software is available to you under a choice of one of two
	* licenses. You may choose to be licensed under the terms of the GNU
	* General Public License (GPL) Version 2, available from the file
	* COPYING in the main directory of this source tree, or the
	* OpenIB.org BSD license below:
	*
	* Redistribution and use in source and binary forms, with or
	* without modification, are permitted provided that the following
	* conditions are met:
	*
	* - Redistributions of source code must retain the above
	* copyright notice, this list of conditions and the following
	* disclaimer.
	*
	* - Redistributions in binary form must reproduce the above
	* copyright notice, this list of conditions and the following
	* disclaimer in the documentation and/or other materials
	* provided with the distribution.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	* SOFTWARE.
	*/

	#ifndef __CSIO_LNODE_H__
	#define __CSIO_LNODE_H__

	#include <linux/kref.h>
	#include <linux/timer.h>
	#include <linux/workqueue.h>
	#include <scsi/fc/fc_els.h>


	#include "csio_defs.h"
	#include "csio_hw.h"

	#define CSIO_FCOE_MAX_NPIV 128
	#define CSIO_FCOE_MAX_RNODES 2048

	/* FDMI port attribute unknown speed */
	#define CSIO_HBA_PORTSPEED_UNKNOWN 0x8000

	extern int csio_fcoe_rnodes;
	extern int csio_fdmi_enable;

	/* State machine evets */
	enum csio_ln_ev {
	<------>CSIO_LNE_NONE = (uint32_t)0,
	<------>CSIO_LNE_LINKUP,
	<------>CSIO_LNE_FAB_INIT_DONE,
	<------>CSIO_LNE_LINK_DOWN,
	<------>CSIO_LNE_DOWN_LINK,
	<------>CSIO_LNE_LOGO,
	<------>CSIO_LNE_CLOSE,
	<------>CSIO_LNE_MAX_EVENT,
	};


	struct csio_fcf_info {
	<------>struct list_head list;
	<------>uint8_t priority;
	<------>uint8_t mac[6];
	<------>uint8_t name_id[8];
	<------>uint8_t fabric[8];
	<------>uint16_t vf_id;
	<------>uint8_t vlan_id;
	<------>uint16_t max_fcoe_size;
	<------>uint8_t fc_map[3];
	<------>uint32_t fka_adv;
	<------>uint32_t fcfi;
	<------>uint8_t get_next:1;
	<------>uint8_t link_aff:1;
	<------>uint8_t fpma:1;
	<------>uint8_t spma:1;
	<------>uint8_t login:1;
	<------>uint8_t portid;
	<------>uint8_t spma_mac[6];
	<------>struct kref kref;
	};

	/* Defines for flags */
	#define CSIO_LNF_FIPSUPP 0x00000001 /* Fip Supported */
	#define CSIO_LNF_NPIVSUPP 0x00000002 /* NPIV supported */
	#define CSIO_LNF_LINK_ENABLE 0x00000004 /* Link enabled */
	#define CSIO_LNF_FDMI_ENABLE 0x00000008 /* FDMI support */

	/* Transport events */
	enum csio_ln_fc_evt {
	<------>CSIO_LN_FC_LINKUP = 1,
	<------>CSIO_LN_FC_LINKDOWN,
	<------>CSIO_LN_FC_RSCN,
	<------>CSIO_LN_FC_ATTRIB_UPDATE,
	};

	/* Lnode stats */
	struct csio_lnode_stats {
	<------>uint32_t n_link_up; /* Link down */
	<------>uint32_t n_link_down; /* Link up */
	<------>uint32_t n_err; /* error */
	<------>uint32_t n_err_nomem; /* memory not available */
	<------>uint32_t n_inval_parm; /* Invalid parameters */
	<------>uint32_t n_evt_unexp; /* unexpected event */
	<------>uint32_t n_evt_drop; /* dropped event */
	<------>uint32_t n_rnode_match; /* matched rnode */
	<------>uint32_t n_dev_loss_tmo; /* Device loss timeout */
	<------>uint32_t n_fdmi_err; /* fdmi err */
	<------>uint32_t n_evt_fw[PROTO_ERR_IMPL_LOGO + 1]; /* fw events */
	<------>enum csio_ln_ev n_evt_sm[CSIO_LNE_MAX_EVENT]; /* State m/c events */
	<------>uint32_t n_rnode_alloc; /* rnode allocated */
	<------>uint32_t n_rnode_free; /* rnode freed */
	<------>uint32_t n_rnode_nomem; /* rnode alloc failure */
	<------>uint32_t n_input_requests; /* Input Requests */
	<------>uint32_t n_output_requests; /* Output Requests */
	<------>uint32_t n_control_requests; /* Control Requests */
	<------>uint32_t n_input_bytes; /* Input Bytes */
	<------>uint32_t n_output_bytes; /* Output Bytes */
	<------>uint32_t rsvd1;
	};

	/* Common Lnode params */
	struct csio_lnode_params {
	<------>uint32_t ra_tov;
	<------>uint32_t fcfi;
	<------>uint32_t log_level; /* Module level for debugging */
	};

	struct csio_service_parms {
	<------>struct fc_els_csp csp; /* Common service parms */
	<------>uint8_t wwpn[8]; /* WWPN */
	<------>uint8_t wwnn[8]; /* WWNN */
	<------>struct fc_els_cssp clsp[4]; /* Class service params */
	<------>uint8_t vvl[16]; /* Vendor version level */
	};

	/* Lnode */
	struct csio_lnode {
	<------>struct csio_sm sm; /* State machine + sibling
	<------><------><------><------><------><------> * lnode list.
	<------><------><------><------><------><------> */
	<------>struct csio_hw hwp; / Pointer to the HW module */
	<------>uint8_t portid; /* Port ID */
	<------>uint8_t rsvd1;
	<------>uint16_t rsvd2;
	<------>uint32_t dev_num; /* Device number */
	<------>uint32_t flags; /* Flags */
	<------>struct list_head fcf_lsthead; /* FCF entries */
	<------>struct csio_fcf_info fcfinfo; / FCF in use */
	<------>struct csio_ioreq mgmt_req; / MGMT request */

	<------>/* FCoE identifiers */
	<------>uint8_t mac[6];
	<------>uint32_t nport_id;
	<------>struct csio_service_parms ln_sparm; /* Service parms */

	<------>/* Firmware identifiers */
	<------>uint32_t fcf_flowid; /fcf flowid /
	<------>uint32_t vnp_flowid;
	<------>uint16_t ssn_cnt; /* Registered Session */
	<------>uint8_t cur_evt; /* Current event */
	<------>uint8_t prev_evt; /* Previous event */

	<------>/* Children */
	<------>struct list_head cln_head; /* Head of the children lnode
	<------><------><------><------><------><------> * list.
	<------><------><------><------><------><------> */
	<------>uint32_t num_vports; /* Total NPIV/children LNodes*/
	<------>struct csio_lnode pln; / Parent lnode of child
	<------><------><------><------><------><------> * lnodes.
	<------><------><------><------><------><------> */
	<------>struct list_head cmpl_q; /* Pending I/Os on this lnode */

	<------>/* Remote node information */
	<------>struct list_head rnhead; /* Head of rnode list */
	<------>uint32_t num_reg_rnodes; /* Number of rnodes registered
	<------><------><------><------><------><------> * with the host.
	<------><------><------><------><------><------> */
	<------>uint32_t n_scsi_tgts; /* Number of scsi targets
	<------><------><------><------><------><------> * found
	<------><------><------><------><------><------> */
	<------>uint32_t last_scan_ntgts;/* Number of scsi targets
	<------><------><------><------><------><------> * found per last scan.
	<------><------><------><------><------><------> */
	<------>uint32_t tgt_scan_tick; /* timer started after
	<------><------><------><------><------><------> * new tgt found
	<------><------><------><------><------><------> */
	<------>/* FC transport data */
	<------>struct fc_vport *fc_vport;
	<------>struct fc_host_statistics fch_stats;

	<------>struct csio_lnode_stats stats; /* Common lnode stats */
	<------>struct csio_lnode_params params; /* Common lnode params */
	};

	#define csio_lnode_to_hw(ln) ((ln)->hwp)
	#define csio_root_lnode(ln) (csio_lnode_to_hw((ln))->rln)
	#define csio_parent_lnode(ln) ((ln)->pln)
	#define csio_ln_flowid(ln) ((ln)->vnp_flowid)
	#define csio_ln_wwpn(ln) ((ln)->ln_sparm.wwpn)
	#define csio_ln_wwnn(ln) ((ln)->ln_sparm.wwnn)

	#define csio_is_root_ln(ln) (((ln) == csio_root_lnode((ln))) ? 1 : 0)
	#define csio_is_phys_ln(ln) (((ln)->pln == NULL) ? 1 : 0)
	#define csio_is_npiv_ln(ln) (((ln)->pln != NULL) ? 1 : 0)


	#define csio_ln_dbg(_ln, _fmt, ...) \
	<------>csio_dbg(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \
	<------><------> CSIO_DEVID_LO(_ln), ##__VA_ARGS__);

	#define csio_ln_err(_ln, _fmt, ...) \
	<------>csio_err(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \
	<------><------> CSIO_DEVID_LO(_ln), ##__VA_ARGS__);

	#define csio_ln_warn(_ln, _fmt, ...) \
	<------>csio_warn(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \
	<------><------> CSIO_DEVID_LO(_ln), ##__VA_ARGS__);

	/* HW->Lnode notifications */
	enum csio_ln_notify {
	<------>CSIO_LN_NOTIFY_HWREADY = 1,
	<------>CSIO_LN_NOTIFY_HWSTOP,
	<------>CSIO_LN_NOTIFY_HWREMOVE,
	<------>CSIO_LN_NOTIFY_HWRESET,
	};

	void csio_fcoe_fwevt_handler(struct csio_hw , __u8 cpl_op, __be64 );
	int csio_is_lnode_ready(struct csio_lnode *);
	void csio_lnode_state_to_str(struct csio_lnode ln, int8_t str);
	struct csio_lnode csio_lnode_lookup_by_wwpn(struct csio_hw , uint8_t *);
	int csio_get_phy_port_stats(struct csio_hw *, uint8_t ,
	<------><------><------><------> struct fw_fcoe_port_stats *);
	int csio_scan_done(struct csio_lnode *, unsigned long, unsigned long,
	<------><------> unsigned long, unsigned long);
	void csio_notify_lnodes(struct csio_hw *, enum csio_ln_notify);
	void csio_disable_lnodes(struct csio_hw *, uint8_t, bool);
	void csio_lnode_async_event(struct csio_lnode *, enum csio_ln_fc_evt);
	int csio_ln_fdmi_start(struct csio_lnode , void );
	int csio_lnode_start(struct csio_lnode *);
	void csio_lnode_stop(struct csio_lnode *);
	void csio_lnode_close(struct csio_lnode *);
	int csio_lnode_init(struct csio_lnode , struct csio_hw ,
	<------><------><------> struct csio_lnode *);
	void csio_lnode_exit(struct csio_lnode *);

	#endif /* ifndef __CSIO_LNODE_H__ */