1 /* Copyright (c) 2006 Coraid, Inc. See COPYING for GPL terms. */
4 #define DEVICE_NAME "aoe"
6 /* set AOE_PARTITIONS to 1 to use whole-disks only
7 * default is 16, which is 15 partitions plus the whole disk
10 #define AOE_PARTITIONS (16)
13 #define SYSMINOR(aoemajor, aoeminor) ((aoemajor) * NPERSHELF + (aoeminor))
14 #define AOEMAJOR(sysminor) ((sysminor) / NPERSHELF)
15 #define AOEMINOR(sysminor) ((sysminor) % NPERSHELF)
16 #define WHITESPACE " \t\v\f\n"
27 AOEAFL_ASYNC = (1<<1),
28 AOEAFL_WRITE = (1<<0),
53 unsigned char errfeat;
55 unsigned char cmdstat;
69 unsigned char aoeccmd;
70 unsigned char cslen[2];
74 DEVFL_UP = 1, /* device is installed in system and ready for AoE->ATA commands */
75 DEVFL_TKILL = (1<<1), /* flag for timer to know when to kill self */
76 DEVFL_EXT = (1<<2), /* device accepts lba48 commands */
77 DEVFL_CLOSEWAIT = (1<<3), /* device is waiting for all closes to revalidate */
78 DEVFL_GDALLOC = (1<<4), /* need to alloc gendisk */
80 DEVFL_NEWSIZE = (1<<6), /* need to update dev size in block layer */
87 NPERSHELF = 16, /* number of slots per shelf address */
93 struct list_head bufs;
94 ulong start_time; /* for disk stats */
115 unsigned char addr[6]; /* remote mac addr */
120 ulong nopen; /* (bd_openers isn't available without sleeping) */
121 ulong rttavg; /* round trip average of requests/responses */
122 u16 fw_ver; /* version of blade's firmware */
123 struct work_struct work;/* disk create work struct */
125 request_queue_t blkq;
126 struct hd_geometry geo;
128 struct timer_list timer;
130 struct net_device *ifp; /* interface ed is attached to */
131 struct sk_buff *sendq_hd; /* packets needing to be sent, list head */
132 struct sk_buff *sendq_tl;
133 mempool_t *bufpool; /* for deadlock-free Buf allocation */
134 struct list_head bufq; /* queue of bios to work on */
135 struct buf *inprocess; /* the one we're currently working on */
136 ulong lasttag; /* last tag sent */
137 ulong nframes; /* number of frames below */
138 struct frame *frames;
142 int aoeblk_init(void);
143 void aoeblk_exit(void);
144 void aoeblk_gdalloc(void *);
145 void aoedisk_rm_sysfs(struct aoedev *d);
147 int aoechr_init(void);
148 void aoechr_exit(void);
149 void aoechr_error(char *);
151 void aoecmd_work(struct aoedev *d);
152 void aoecmd_cfg(ushort aoemajor, unsigned char aoeminor);
153 void aoecmd_ata_rsp(struct sk_buff *);
154 void aoecmd_cfg_rsp(struct sk_buff *);
155 void aoecmd_sleepwork(void *vp);
156 struct sk_buff *new_skb(ulong);
158 int aoedev_init(void);
159 void aoedev_exit(void);
160 struct aoedev *aoedev_by_aoeaddr(int maj, int min);
161 struct aoedev *aoedev_by_sysminor_m(ulong sysminor, ulong bufcnt);
162 void aoedev_downdev(struct aoedev *d);
163 int aoedev_isbusy(struct aoedev *d);
165 int aoenet_init(void);
166 void aoenet_exit(void);
167 void aoenet_xmit(struct sk_buff *);
168 int is_aoe_netif(struct net_device *ifp);
169 int set_aoe_iflist(const char __user *str, size_t size);
171 u64 mac_addr(char addr[6]);