| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ed L. Cashin | 1018 | 95.50% | 37 | 80.43% |
| Jens Axboe | 13 | 1.22% | 2 | 4.35% |
| Greg Kroah-Hartman | 10 | 0.94% | 1 | 2.17% |
| Christoph Hellwig | 9 | 0.84% | 1 | 2.17% |
| Tetsuo Handa | 6 | 0.56% | 1 | 2.17% |
| Kent Overstreet | 4 | 0.38% | 1 | 2.17% |
| David S. Miller | 3 | 0.28% | 1 | 2.17% |
| David Howells | 2 | 0.19% | 1 | 2.17% |
| Tina Ruchandani | 1 | 0.09% | 1 | 2.17% |
| Total | 1066 | 46 |
/* Copyright (c) 2013 Coraid, Inc. See COPYING for GPL terms. */ #include <linux/blk-mq.h> #define VERSION "85" #define AOE_MAJOR 152 #define DEVICE_NAME "aoe" /* set AOE_PARTITIONS to 1 to use whole-disks only * default is 16, which is 15 partitions plus the whole disk */ #ifndef AOE_PARTITIONS #define AOE_PARTITIONS (16) #endif #define WHITESPACE " \t\v\f\n," enum { AOECMD_ATA, AOECMD_CFG, AOECMD_VEND_MIN = 0xf0, 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]; __be16 type; unsigned char verfl; unsigned char err; __be16 major; unsigned char minor; unsigned char cmd; __be32 tag; }; 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 { __be16 bufcnt; __be16 fwver; unsigned char scnt; 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_GDALLOC = (1<<3), /* need to alloc gendisk */ DEVFL_GD_NOW = (1<<4), /* allocating gendisk */ DEVFL_KICKME = (1<<5), /* slow polling network card catch */ DEVFL_NEWSIZE = (1<<6), /* need to update dev size in block layer */ DEVFL_FREEING = (1<<7), /* set when device is being cleaned up */ DEVFL_FREED = (1<<8), /* device has been cleaned up */ }; enum { DEFAULTBCNT = 2 * 512, /* 2 sectors */ MIN_BUFS = 16, NTARGETS = 4, NAOEIFS = 8, NSKBPOOLMAX = 256, NFACTIVE = 61, TIMERTICK = HZ / 10, RTTSCALE = 8, RTTDSCALE = 3, RTTAVG_INIT = USEC_PER_SEC / 4 << RTTSCALE, RTTDEV_INIT = RTTAVG_INIT / 4, HARD_SCORN_SECS = 10, /* try another remote port after this */ MAX_TAINT = 1000, /* cap on aoetgt taint */ }; struct aoe_req { unsigned long nr_bios; }; struct buf { ulong nframesout; struct bio *bio; struct bvec_iter iter; struct request *rq; }; enum frame_flags { FFL_PROBE = 1, }; struct frame { struct list_head head; u32 tag; ktime_t sent; /* high-res time packet was sent */ ulong waited; ulong waited_total; struct aoetgt *t; /* parent target I belong to */ struct sk_buff *skb; /* command skb freed on module exit */ struct sk_buff *r_skb; /* response skb for async processing */ struct buf *buf; struct bvec_iter iter; char flags; }; struct aoeif { struct net_device *nd; ulong lost; int bcnt; }; struct aoetgt { unsigned char addr[6]; ushort nframes; /* cap on frames to use */ struct aoedev *d; /* parent device I belong to */ struct list_head ffree; /* list of free frames */ struct aoeif ifs[NAOEIFS]; struct aoeif *ifp; /* current aoeif in use */ ushort nout; /* number of AoE commands outstanding */ ushort maxout; /* current value for max outstanding */ ushort next_cwnd; /* incr maxout after decrementing to zero */ ushort ssthresh; /* slow start threshold */ ulong falloc; /* number of allocated frames */ int taint; /* how much we want to avoid this aoetgt */ int minbcnt; int wpkts, rpkts; char nout_probes; }; struct aoedev { struct aoedev *next; ulong sysminor; ulong aoemajor; u32 rttavg; /* scaled AoE round trip time average */ u32 rttdev; /* scaled round trip time mean deviation */ u16 aoeminor; u16 flags; u16 nopen; /* (bd_openers isn't available without sleeping) */ u16 fw_ver; /* version of blade's firmware */ u16 lasttag; /* last tag sent */ u16 useme; ulong ref; struct work_struct work;/* disk create work struct */ struct gendisk *gd; struct dentry *debugfs; struct request_queue *blkq; struct list_head rq_list; struct blk_mq_tag_set tag_set; struct hd_geometry geo; sector_t ssize; struct timer_list timer; spinlock_t lock; struct sk_buff_head skbpool; mempool_t *bufpool; /* for deadlock-free Buf allocation */ struct { /* pointers to work in progress */ struct buf *buf; struct bio *nxbio; struct request *rq; } ip; ulong maxbcnt; struct list_head factive[NFACTIVE]; /* hash of active frames */ struct list_head rexmitq; /* deferred retransmissions */ struct aoetgt **targets; ulong ntargets; /* number of allocated aoetgt pointers */ struct aoetgt **tgt; /* target in use when working */ ulong kicked; char ident[512]; }; /* kthread tracking */ struct ktstate { struct completion rendez; struct task_struct *task; wait_queue_head_t *waitq; int (*fn) (int); char name[12]; spinlock_t *lock; int id; int active; }; int aoeblk_init(void); void aoeblk_exit(void); void aoeblk_gdalloc(void *); void aoedisk_rm_debugfs(struct aoedev *d); int aoechr_init(void); void aoechr_exit(void); void aoechr_error(char *); void aoecmd_work(struct aoedev *d); void aoecmd_cfg(ushort aoemajor, unsigned char aoeminor); struct sk_buff *aoecmd_ata_rsp(struct sk_buff *); void aoecmd_cfg_rsp(struct sk_buff *); void aoecmd_sleepwork(struct work_struct *); void aoecmd_wreset(struct aoetgt *t); void aoecmd_cleanslate(struct aoedev *); void aoecmd_exit(void); int aoecmd_init(void); struct sk_buff *aoecmd_ata_id(struct aoedev *); void aoe_freetframe(struct frame *); void aoe_flush_iocq(void); void aoe_flush_iocq_by_index(int); void aoe_end_request(struct aoedev *, struct request *, int); int aoe_ktstart(struct ktstate *k); void aoe_ktstop(struct ktstate *k); int aoedev_init(void); void aoedev_exit(void); struct aoedev *aoedev_by_aoeaddr(ulong maj, int min, int do_alloc); void aoedev_downdev(struct aoedev *d); int aoedev_flush(const char __user *str, size_t size); void aoe_failbuf(struct aoedev *, struct buf *); void aoedev_put(struct aoedev *); int aoenet_init(void); void aoenet_exit(void); void aoenet_xmit(struct sk_buff_head *); int is_aoe_netif(struct net_device *ifp); int set_aoe_iflist(const char __user *str, size_t size); extern struct workqueue_struct *aoe_wq;
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