patch-2.1.79 linux/drivers/fc4/fcp_scsi.h

• Lines: 141
• Date: Mon Jan 12 15:19:36 1998
• Orig file: v2.1.78/linux/drivers/fc4/fcp_scsi.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.78/linux/drivers/fc4/fcp_scsi.h linux/drivers/fc4/fcp_scsi.h
@@ -0,0 +1,140 @@
+/* fcp_scsi.h: Generic SCSI on top of FC4 - interface defines.
+ *
+ * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+#ifndef _FCP_SCSI_H
+#define _FCP_SCSI_H
+
+#include <linux/types.h>
+#include <linux/blk.h>
+#include "../scsi/scsi.h"
+
+#include "fc.h"
+#include "fcp.h"
+
+#ifdef __sparc__
+
+#include <asm/sbus.h>
+typedef u32	dma_handle;
+
+#else
+#error Need to port FC layer to your architecture
+#endif
+
+#define FC_CLASS_OUTBOUND	0x01
+#define FC_CLASS_INBOUND	0x02
+#define FC_CLASS_SIMPLE		0x03
+#define FC_CLASS_IO_WRITE	0x04
+#define FC_CLASS_IO_READ	0x05
+#define FC_CLASS_UNSOLICITED	0x06
+#define FC_CLASS_OFFLINE	0x08
+
+#define PROTO_OFFLINE		0x02
+
+struct _fc_channel; 
+
+typedef struct fcp_cmnd {
+	struct fcp_cmnd		*next;
+	struct fcp_cmnd		*prev;
+	void			(*done)(Scsi_Cmnd *);
+	int			proto;
+	int		 	token;
+	/* FCP SCSI stuff */
+	dma_handle		data;
+	/* From now on this cannot be touched for proto == TYPE_SCSI_FCP */
+	fc_hdr			fch;
+	dma_handle		cmd;
+	dma_handle		rsp;
+	int			cmdlen;
+	int			rsplen;
+	int			class;
+	int			datalen;
+	/* This is just used as a verification during login */
+	struct _fc_channel	*fc;
+} fcp_cmnd;
+
+typedef struct _fc_channel {
+	struct _fc_channel	*next;
+	int			irq;
+	int			state;
+	int			sid;
+	int			did;
+	char			name[16];
+	void			(*fcp_register)(struct _fc_channel *, u8, int);
+	void			(*fcp_state_change)(struct _fc_channel *, int);
+	void			(*reset)(struct _fc_channel *);
+	int			(*hw_enque)(struct _fc_channel *, fcp_cmnd *);
+	fc_wwn			wwn_node;
+	fc_wwn			wwn_nport;
+	fc_wwn			wwn_dest;
+	common_svc_parm		*common_svc;
+	svc_parm		*class_svcs;
+#ifdef __sparc__	
+	struct linux_sbus_device *dev;
+#endif
+	/* FCP SCSI stuff */
+	int			can_queue;
+	int			rsp_size;
+	fcp_cmd			*scsi_cmd_pool;
+	char			*scsi_rsp_pool;
+	dma_handle		dma_scsi_cmd, dma_scsi_rsp;
+	long			*scsi_bitmap;
+	long			scsi_bitmap_end;
+	int			scsi_free;
+	int			(*encode_addr)(Scsi_Cmnd *cmnd, u16 *addr);
+	fcp_cmnd		*scsi_que[2];
+	char			scsi_name[4];
+	fcp_cmnd		**token_tab;
+	int			channels;
+	int			targets;
+	long			*ages;
+	/* LOGIN stuff */
+	fcp_cmnd		*login;
+	void			*ls;
+} fc_channel;
+
+extern fc_channel *fc_channels;
+
+#define FC_STATE_UNINITED	0
+#define FC_STATE_ONLINE		1
+#define FC_STATE_OFFLINE	2
+#define FC_STATE_RESETING	3
+#define FC_STATE_FPORT_OK	4
+#define FC_STATE_MAYBEOFFLINE	5
+
+#define FC_STATUS_OK			0
+#define FC_STATUS_P_RJT			2
+#define FC_STATUS_F_RJT			3
+#define FC_STATUS_P_BSY			4
+#define FC_STATUS_F_BSY			5
+#define FC_STATUS_ERR_OFFLINE		0x11
+#define FC_STATUS_TIMEOUT		0x12
+#define FC_STATUS_ERR_OVERRUN		0x13
+#define FC_STATUS_UNKNOWN_CQ_TYPE	0x20
+#define FC_STATUS_BAD_SEG_CNT		0x21
+#define FC_STATUS_MAX_XCHG_EXCEEDED	0x22
+#define FC_STATUS_BAD_XID		0x23
+#define FC_STATUS_XCHG_BUSY		0x24
+#define FC_STATUS_BAD_POOL_ID		0x25
+#define FC_STATUS_INSUFFICIENT_CQES	0x26
+#define FC_STATUS_ALLOC_FAIL		0x27
+#define FC_STATUS_BAD_SID		0x28
+#define FC_STATUS_NO_SEQ_INIT		0x29
+
+void fcp_queue_empty(fc_channel *);
+int fcp_init(fc_channel *);
+void fcp_receive_solicited(fc_channel *, int, int, int, fc_hdr *);
+
+#define for_each_fc_channel(fc)				\
+	for (fc = fc_channels; fc; fc = fc->next)
+	
+#define for_each_online_fc_channel(fc) 			\
+	for_each_fc_channel(fc)				\
+		if (fc->state == FC_STATE_ONLINE)
+
+int fcp_scsi_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
+int fcp_scsi_abort(Scsi_Cmnd *);
+int fcp_scsi_reset(Scsi_Cmnd *, unsigned int);
+
+#endif /* !(_FCP_SCSI_H) */