Release 4.7 drivers/scsi/bfa/bfad_im.h

/*
 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
 * Copyright (c) 2014- QLogic Corporation.
 * All rights reserved
 * www.qlogic.com
 *
 * Linux driver for QLogic BR-series Fibre Channel Host Bus 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.
 */

#ifndef __BFAD_IM_H__

#define __BFAD_IM_H__

#include "bfa_fcs.h"


#define FCPI_NAME " fcpim"

#ifndef KOBJ_NAME_LEN

#define KOBJ_NAME_LEN           20
#endif

bfa_status_t bfad_im_module_init(void);
void bfad_im_module_exit(void);
bfa_status_t bfad_im_probe(struct bfad_s *bfad);
void bfad_im_probe_undo(struct bfad_s *bfad);
bfa_status_t bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port);
void bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port);
void bfad_im_port_clean(struct bfad_im_port_s *im_port);
int  bfad_im_scsi_host_alloc(struct bfad_s *bfad,
		struct bfad_im_port_s *im_port, struct device *dev);
void bfad_im_scsi_host_free(struct bfad_s *bfad,
				struct bfad_im_port_s *im_port);
u32 bfad_im_supported_speeds(struct bfa_s *bfa);


#define MAX_FCP_TARGET 1024

#define MAX_FCP_LUN 16384

#define BFAD_TARGET_RESET_TMO 60

#define BFAD_LUN_RESET_TMO 60

#define ScsiResult(host_code, scsi_code) (((host_code) << 16) | scsi_code)

#define BFA_QUEUE_FULL_RAMP_UP_TIME 120

/*
 * itnim flags
 */

#define IO_DONE_BIT			0


struct bfad_itnim_data_s {
	
struct bfad_itnim_s *itnim;
};


struct bfad_im_port_s {
	
struct bfad_s         *bfad;
	
struct bfad_port_s    *port;
	
struct work_struct port_delete_work;
	
int             idr_id;
	
u16        cur_scsi_id;
	
u16	flags;
	
struct list_head binding_list;
	
struct Scsi_Host *shost;
	
struct list_head itnim_mapped_list;
	
struct fc_vport *fc_vport;
};


enum bfad_itnim_state {
	
ITNIM_STATE_NONE,
	
ITNIM_STATE_ONLINE,
	
ITNIM_STATE_OFFLINE_PENDING,
	
ITNIM_STATE_OFFLINE,
	
ITNIM_STATE_TIMEOUT,
	
ITNIM_STATE_FREE,
};

/*
 * Per itnim data structure
 */

struct bfad_itnim_s {
	
struct list_head list_entry;
	
struct bfa_fcs_itnim_s fcs_itnim;
	
struct work_struct itnim_work;
	
u32        flags;
	
enum bfad_itnim_state state;
	
struct bfad_im_s *im;
	
struct bfad_im_port_s *im_port;
	
struct bfad_rport_s *drv_rport;
	
struct fc_rport *fc_rport;
	
struct bfa_itnim_s *bfa_itnim;
	
u16        scsi_tgt_id;
	
u16	   channel;
	
u16        queue_work;
	
unsigned long	last_ramp_up_time;
	
unsigned long	last_queue_full_time;
};


enum bfad_binding_type {
	
FCP_PWWN_BINDING = 0x1,
	
FCP_NWWN_BINDING = 0x2,
	
FCP_FCID_BINDING = 0x3,
};


struct bfad_fcp_binding {
	
struct list_head list_entry;
	
enum bfad_binding_type binding_type;
	
u16        scsi_target_id;
	
u32        fc_id;
	
wwn_t           nwwn;
	
wwn_t           pwwn;
};


struct bfad_im_s {
	
struct bfad_s         *bfad;
	
struct workqueue_struct *drv_workq;
	
char            drv_workq_name[KOBJ_NAME_LEN];
	
struct work_struct	aen_im_notify_work;
};


#define bfad_get_aen_entry(_drv, _entry) do {                            \
        unsigned long   _flags;                                         \
        spin_lock_irqsave(&(_drv)->bfad_aen_spinlock, _flags);          \
        bfa_q_deq(&(_drv)->free_aen_q, &(_entry));                      \
        if (_entry)                                                     \
                list_add_tail(&(_entry)->qe, &(_drv)->active_aen_q);    \
        spin_unlock_irqrestore(&(_drv)->bfad_aen_spinlock, _flags);     \
} while (0)

/* post fc_host vendor event */

#define bfad_im_post_vendor_event(_entry, _drv, _cnt, _cat, _evt) do {          \
        do_gettimeofday(&(_entry)->aen_tv);                                   \
        (_entry)->bfad_num = (_drv)->inst_no;                                 \
        (_entry)->seq_num = (_cnt);                                           \
        (_entry)->aen_category = (_cat);                                      \
        (_entry)->aen_type = (_evt);                                          \
        if ((_drv)->bfad_flags & BFAD_FC4_PROBE_DONE)                         \
                queue_work((_drv)->im->drv_workq,                             \
                           &(_drv)->im->aen_im_notify_work);                  \
} while (0)

struct Scsi_Host *bfad_scsi_host_alloc(struct bfad_im_port_s *im_port,
				struct bfad_s *);
bfa_status_t bfad_thread_workq(struct bfad_s *bfad);
void bfad_destroy_workq(struct bfad_im_s *im);
void bfad_fc_host_init(struct bfad_im_port_s *im_port);
void bfad_scsi_host_free(struct bfad_s *bfad,
				 struct bfad_im_port_s *im_port);
void bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim,
				 struct scsi_device *sdev);
void bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev);
struct bfad_itnim_s *bfad_get_itnim(struct bfad_im_port_s *im_port, int id);

extern struct scsi_host_template bfad_im_scsi_host_template;
extern struct scsi_host_template bfad_im_vport_template;
extern struct fc_function_template bfad_im_fc_function_template;
extern struct fc_function_template bfad_im_vport_fc_function_template;
extern struct scsi_transport_template *bfad_im_scsi_transport_template;
extern struct scsi_transport_template *bfad_im_scsi_vport_transport_template;

extern struct device_attribute *bfad_im_host_attrs[];
extern struct device_attribute *bfad_im_vport_attrs[];

irqreturn_t bfad_intx(int irq, void *dev_id);

int bfad_im_bsg_request(struct fc_bsg_job *job);
int bfad_im_bsg_timeout(struct fc_bsg_job *job);

/*
 * Macro to set the SCSI device sdev_bflags - sdev_bflags are used by the
 * SCSI mid-layer to choose LUN Scanning mode REPORT_LUNS vs. Sequential Scan
 *
 * Internally iterate's over all the ITNIM's part of the im_port & set's the
 * sdev_bflags for the scsi_device associated with LUN #0.
 */

#define bfad_reset_sdev_bflags(__im_port, __lunmask_cfg) do {            \
        struct scsi_device *__sdev = NULL;                              \
        struct bfad_itnim_s *__itnim = NULL;                            \
        u32 scan_flags = BLIST_NOREPORTLUN | BLIST_SPARSELUN;           \
        list_for_each_entry(__itnim, &((__im_port)->itnim_mapped_list), \
                            list_entry) {                               \
                __sdev = scsi_device_lookup((__im_port)->shost,         \
                                            __itnim->channel,           \
                                            __itnim->scsi_tgt_id, 0);   \
                if (__sdev) {                                           \
                        if ((__lunmask_cfg) == BFA_TRUE)                \
                                __sdev->sdev_bflags |= scan_flags;      \
                        else                                            \
                                __sdev->sdev_bflags &= ~scan_flags;     \
                        scsi_device_put(__sdev);                        \
                }                                                       \
        }                                                               \
} while (0)

#endif
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Directory: drivers/scsi/bfa

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