This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / drivers / block / aoe / aoe.h

diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
new file mode 100644 (file)
index 0000000..2f4eafa
--- /dev/null
+++ b/drivers/block/aoe/aoe.h
@@ -0,0 +1,166 @@
+/* Copyright (c) 2004 Coraid, Inc.  See COPYING for GPL terms. */
+#define VERSION "5"
+#define AOE_MAJOR 152
+#define DEVICE_NAME "aoe"
+#ifndef AOE_PARTITIONS
+#define AOE_PARTITIONS 16
+#endif
+#define SYSMINOR(aoemajor, aoeminor) ((aoemajor) * 10 + (aoeminor))
+#define AOEMAJOR(sysminor) ((sysminor) / 10)
+#define AOEMINOR(sysminor) ((sysminor) % 10)
+#define WHITESPACE " \t\v\f\n"
+
+enum {
+       AOECMD_ATA,
+       AOECMD_CFG,
+
+       AOEFL_RSP = (1<<3),
+       AOEFL_ERR = (1<<2),
+
+       AOEAFL_EXT = (1<<6),
+       AOEAFL_DEV = (1<<4),
+       AOEAFL_ASYNC = (1<<1),
+       AOEAFL_WRITE = (1<<0),
+
+       AOECCMD_READ = 0,
+       AOECCMD_TEST,
+       AOECCMD_PTEST,
+       AOECCMD_SET,
+       AOECCMD_FSET,
+
+       AOE_HVER = 0x10,
+};
+
+struct aoe_hdr {
+       unsigned char dst[6];
+       unsigned char src[6];
+       unsigned char type[2];
+       unsigned char verfl;
+       unsigned char err;
+       unsigned char major[2];
+       unsigned char minor;
+       unsigned char cmd;
+       unsigned char tag[4];
+};
+
+struct aoe_atahdr {
+       unsigned char aflags;
+       unsigned char errfeat;
+       unsigned char scnt;
+       unsigned char cmdstat;
+       unsigned char lba0;
+       unsigned char lba1;
+       unsigned char lba2;
+       unsigned char lba3;
+       unsigned char lba4;
+       unsigned char lba5;
+       unsigned char res[2];
+};
+
+struct aoe_cfghdr {
+       unsigned char bufcnt[2];
+       unsigned char fwver[2];
+       unsigned char res;
+       unsigned char aoeccmd;
+       unsigned char cslen[2];
+};
+
+enum {
+       DEVFL_UP = 1,   /* device is installed in system and ready for AoE->ATA commands */
+       DEVFL_TKILL = (1<<1),   /* flag for timer to know when to kill self */
+       DEVFL_EXT = (1<<2),     /* device accepts lba48 commands */
+       DEVFL_CLOSEWAIT = (1<<3), /* device is waiting for all closes to revalidate */
+       DEVFL_WC_UPDATE = (1<<4), /* this device needs to update write cache status */
+       DEVFL_WORKON = (1<<4),
+
+       BUFFL_FAIL = 1,
+};
+
+enum {
+       MAXATADATA = 1024,
+       NPERSHELF = 10,
+       FREETAG = -1,
+       MIN_BUFS = 8,
+};
+
+struct buf {
+       struct list_head bufs;
+       ulong flags;
+       ulong nframesout;
+       char *bufaddr;
+       ulong resid;
+       ulong bv_resid;
+       sector_t sector;
+       struct bio *bio;
+       struct bio_vec *bv;
+};
+
+struct frame {
+       int tag;
+       ulong waited;
+       struct buf *buf;
+       char *bufaddr;
+       int writedatalen;
+       int ndata;
+
+       /* largest possible */
+       unsigned char data[sizeof(struct aoe_hdr) + sizeof(struct aoe_atahdr)];
+};
+
+struct aoedev {
+       struct aoedev *next;
+       unsigned char addr[6];  /* remote mac addr */
+       ushort flags;
+       ulong sysminor;
+       ulong aoemajor;
+       ulong aoeminor;
+       ulong nopen;            /* (bd_openers isn't available without sleeping) */
+       ulong rttavg;           /* round trip average of requests/responses */
+       u16 fw_ver;             /* version of blade's firmware */
+       struct work_struct work;/* disk create work struct */
+       struct gendisk *gd;
+       request_queue_t blkq;
+       struct hd_geometry geo; 
+       sector_t ssize;
+       struct timer_list timer;
+       spinlock_t lock;
+       struct net_device *ifp; /* interface ed is attached to */
+       struct sk_buff *skblist;/* packets needing to be sent */
+       mempool_t *bufpool;     /* for deadlock-free Buf allocation */
+       struct list_head bufq;  /* queue of bios to work on */
+       struct buf *inprocess;  /* the one we're currently working on */
+       ulong lasttag;          /* last tag sent */
+       ulong nframes;          /* number of frames below */
+       struct frame *frames;
+};
+
+
+int aoeblk_init(void);
+void aoeblk_exit(void);
+void aoeblk_gdalloc(void *);
+void aoedisk_rm_sysfs(struct aoedev *d);
+
+int aoechr_init(void);
+void aoechr_exit(void);
+void aoechr_error(char *);
+void aoechr_hdump(char *, int len);
+
+void aoecmd_work(struct aoedev *d);
+void aoecmd_cfg(ushort, unsigned char);
+void aoecmd_ata_rsp(struct sk_buff *);
+void aoecmd_cfg_rsp(struct sk_buff *);
+
+int aoedev_init(void);
+void aoedev_exit(void);
+struct aoedev *aoedev_bymac(unsigned char *);
+void aoedev_downdev(struct aoedev *d);
+struct aoedev *aoedev_set(ulong, unsigned char *, struct net_device *, ulong);
+int aoedev_busy(void);
+
+int aoenet_init(void);
+void aoenet_exit(void);
+void aoenet_xmit(struct sk_buff *);
+int is_aoe_netif(struct net_device *ifp);
+int set_aoe_iflist(const char __user *str, size_t size);
+
+u64 mac_addr(char addr[6]);