[SCSI] bfa: Brocade BFA FC SCSI driver

Add new driver for Brocade Hardware

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 295 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfad_drv.h b/drivers/scsi/bfa/bfad_drv.h
new file mode 100644
index 000000000000..172c81e25c1c
--- /dev/null
+++ b/drivers/scsi/bfa/bfad_drv.h
@@ -0,0 +1,295 @@
+/*
+ * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
+ * All rights reserved
+ * www.brocade.com
+ *
+ * Linux driver for Brocade 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.
+ */
+
+/**
+ * Contains base driver definitions.
+ */
+
+/**
+ *  bfa_drv.h Linux driver data structures.
+ */
+
+#ifndef __BFAD_DRV_H__
+#define __BFAD_DRV_H__
+
+#include "bfa_os_inc.h"
+
+#include <bfa.h>
+#include <bfa_svc.h>
+#include <fcs/bfa_fcs.h>
+#include <defs/bfa_defs_pci.h>
+#include <defs/bfa_defs_port.h>
+#include <defs/bfa_defs_rport.h>
+#include <fcs/bfa_fcs_rport.h>
+#include <defs/bfa_defs_vport.h>
+#include <fcs/bfa_fcs_vport.h>
+
+#include <cs/bfa_plog.h>
+#include "aen/bfa_aen.h"
+#include <log/bfa_log_linux.h>
+
+#define BFAD_DRIVER_NAME        "bfa"
+#ifdef BFA_DRIVER_VERSION
+#define BFAD_DRIVER_VERSION    BFA_DRIVER_VERSION
+#else
+#define BFAD_DRIVER_VERSION    "2.0.0.0"
+#endif
+
+
+#define BFAD_IRQ_FLAGS IRQF_SHARED
+
+/*
+ * BFAD flags
+ */
+#define BFAD_MSIX_ON				0x00000001
+#define BFAD_HAL_INIT_DONE			0x00000002
+#define BFAD_DRV_INIT_DONE			0x00000004
+#define BFAD_CFG_PPORT_DONE			0x00000008
+#define BFAD_HAL_START_DONE			0x00000010
+#define BFAD_PORT_ONLINE			0x00000020
+#define BFAD_RPORT_ONLINE			0x00000040
+
+#define BFAD_PORT_DELETE			0x00000001
+
+/*
+ * BFAD related definition
+ */
+#define SCSI_SCAN_DELAY		HZ
+#define BFAD_STOP_TIMEOUT	30
+#define BFAD_SUSPEND_TIMEOUT	BFAD_STOP_TIMEOUT
+
+/*
+ * BFAD configuration parameter default values
+ */
+#define BFAD_LUN_QUEUE_DEPTH 		32
+#define BFAD_IO_MAX_SGE 		SG_ALL
+
+#define bfad_isr_t irq_handler_t
+
+#define MAX_MSIX_ENTRY 22
+
+struct bfad_msix_s {
+	struct bfad_s *bfad;
+	struct msix_entry msix;
+};
+
+enum bfad_port_pvb_type {
+	BFAD_PORT_PHYS_BASE = 0,
+	BFAD_PORT_PHYS_VPORT = 1,
+	BFAD_PORT_VF_BASE = 2,
+	BFAD_PORT_VF_VPORT = 3,
+};
+
+/*
+ * PORT data structure
+ */
+struct bfad_port_s {
+	struct list_head list_entry;
+	struct bfad_s         *bfad;
+	struct bfa_fcs_port_s *fcs_port;
+	u32        roles;
+	s32         flags;
+	u32        supported_fc4s;
+	u8		ipfc_flags;
+	enum bfad_port_pvb_type pvb_type;
+	struct bfad_im_port_s *im_port;	/* IM specific data */
+	struct bfad_tm_port_s *tm_port;	/* TM specific data */
+	struct bfad_ipfc_port_s *ipfc_port;	/* IPFC specific data */
+};
+
+/*
+ * VPORT data structure
+ */
+struct bfad_vport_s {
+	struct bfad_port_s     drv_port;
+	struct bfa_fcs_vport_s fcs_vport;
+	struct completion *comp_del;
+};
+
+/*
+ * VF data structure
+ */
+struct bfad_vf_s {
+	bfa_fcs_vf_t    fcs_vf;
+	struct bfad_port_s    base_port;	/* base port for vf */
+	struct bfad_s   *bfad;
+};
+
+struct bfad_cfg_param_s {
+	u32        rport_del_timeout;
+	u32        ioc_queue_depth;
+	u32        lun_queue_depth;
+	u32        io_max_sge;
+	u32        binding_method;
+};
+
+#define BFAD_AEN_MAX_APPS 8
+struct bfad_aen_file_s {
+	struct list_head  qe;
+	struct bfad_s *bfad;
+	s32 ri;
+	s32 app_id;
+};
+
+/*
+ * BFAD (PCI function) data structure
+ */
+struct bfad_s {
+	struct list_head list_entry;
+	struct bfa_s       bfa;
+	struct bfa_fcs_s       bfa_fcs;
+	struct pci_dev *pcidev;
+	const char *pci_name;
+	struct bfa_pcidev_s hal_pcidev;
+	struct bfa_ioc_pci_attr_s pci_attr;
+	unsigned long   pci_bar0_map;
+	void __iomem   *pci_bar0_kva;
+	struct completion comp;
+	struct completion suspend;
+	struct completion disable_comp;
+	bfa_boolean_t   disable_active;
+	struct bfad_port_s     pport;	/* physical port of the BFAD */
+	struct bfa_meminfo_s meminfo;
+	struct bfa_iocfc_cfg_s   ioc_cfg;
+	u32        inst_no;	/* BFAD instance number */
+	u32        bfad_flags;
+	spinlock_t      bfad_lock;
+	struct bfad_cfg_param_s cfg_data;
+	struct bfad_msix_s msix_tab[MAX_MSIX_ENTRY];
+	int             nvec;
+	char            adapter_name[BFA_ADAPTER_SYM_NAME_LEN];
+	char            port_name[BFA_ADAPTER_SYM_NAME_LEN];
+	struct timer_list hal_tmo;
+	unsigned long   hs_start;
+	struct bfad_im_s *im;		/* IM specific data */
+	struct bfad_tm_s *tm;		/* TM specific data */
+	struct bfad_ipfc_s *ipfc;	/* IPFC specific data */
+	struct bfa_log_mod_s   log_data;
+	struct bfa_trc_mod_s  *trcmod;
+	struct bfa_log_mod_s  *logmod;
+	struct bfa_aen_s      *aen;
+	struct bfa_aen_s       aen_buf;
+	struct bfad_aen_file_s file_buf[BFAD_AEN_MAX_APPS];
+	struct list_head         file_q;
+	struct list_head         file_free_q;
+	struct bfa_plog_s      plog_buf;
+	int             ref_count;
+	bfa_boolean_t	ipfc_enabled;
+	struct fc_host_statistics link_stats;
+
+	struct kobject *bfa_kobj;
+	struct kobject *ioc_kobj;
+	struct kobject *pport_kobj;
+	struct kobject *lport_kobj;
+};
+
+/*
+ * RPORT data structure
+ */
+struct bfad_rport_s {
+	struct bfa_fcs_rport_s fcs_rport;
+};
+
+struct bfad_buf_info {
+	void           *virt;
+	dma_addr_t      phys;
+	u32        size;
+};
+
+struct bfad_fcxp {
+	struct bfad_port_s    *port;
+	struct bfa_rport_s *bfa_rport;
+	bfa_status_t    req_status;
+	u16        tag;
+	u16        rsp_len;
+	u16        rsp_maxlen;
+	u8         use_ireqbuf;
+	u8         use_irspbuf;
+	u32        num_req_sgles;
+	u32        num_rsp_sgles;
+	struct fchs_s          fchs;
+	void           *reqbuf_info;
+	void           *rspbuf_info;
+	struct bfa_sge_s  *req_sge;
+	struct bfa_sge_s  *rsp_sge;
+	fcxp_send_cb_t  send_cbfn;
+	void           *send_cbarg;
+	void           *bfa_fcxp;
+	struct completion comp;
+};
+
+struct bfad_hal_comp {
+	bfa_status_t    status;
+	struct completion comp;
+};
+
+/*
+ * Macro to obtain the immediate lower power
+ * of two for the integer.
+ */
+#define nextLowerInt(x)                         	\
+do {                                            	\
+	int j;                                  	\
+	(*x)--;    		                	\
+	for (j = 1; j < (sizeof(int) * 8); j <<= 1)     \
+		(*x) = (*x) | (*x) >> j;        	\
+	(*x)++;                  	        	\
+	(*x) = (*x) >> 1;                       	\
+} while (0)
+
+
+bfa_status_t    bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
+				  struct bfa_port_cfg_s *port_cfg);
+bfa_status_t    bfad_vf_create(struct bfad_s *bfad, u16 vf_id,
+			       struct bfa_port_cfg_s *port_cfg);
+bfa_status_t    bfad_cfg_pport(struct bfad_s *bfad, enum bfa_port_role role);
+bfa_status_t    bfad_drv_init(struct bfad_s *bfad);
+void            bfad_drv_start(struct bfad_s *bfad);
+void            bfad_uncfg_pport(struct bfad_s *bfad);
+void            bfad_drv_stop(struct bfad_s *bfad);
+void            bfad_remove_intr(struct bfad_s *bfad);
+void            bfad_hal_mem_release(struct bfad_s *bfad);
+void            bfad_hcb_comp(void *arg, bfa_status_t status);
+
+int             bfad_setup_intr(struct bfad_s *bfad);
+void            bfad_remove_intr(struct bfad_s *bfad);
+
+void		bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg);
+bfa_status_t	bfad_hal_mem_alloc(struct bfad_s *bfad);
+void		bfad_bfa_tmo(unsigned long data);
+void		bfad_init_timer(struct bfad_s *bfad);
+int		bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad);
+void		bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad);
+void		bfad_fcs_port_cfg(struct bfad_s *bfad);
+void		bfad_drv_uninit(struct bfad_s *bfad);
+void		bfad_drv_log_level_set(struct bfad_s *bfad);
+bfa_status_t	bfad_fc4_module_init(void);
+void		bfad_fc4_module_exit(void);
+
+void bfad_pci_remove(struct pci_dev *pdev);
+int bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid);
+void bfad_os_rport_online_wait(struct bfad_s *bfad);
+int bfad_os_get_linkup_delay(struct bfad_s *bfad);
+int bfad_install_msix_handler(struct bfad_s *bfad);
+
+extern struct idr bfad_im_port_index;
+extern struct list_head bfad_list;
+extern int bfa_lun_queue_depth;
+extern int bfad_supported_fc4s;
+extern int bfa_linkup_delay;
+
+#endif /* __BFAD_DRV_H__ */