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-rw-r--r--drivers/block/aoe/aoe.h30
-rw-r--r--drivers/block/aoe/aoeblk.c44
-rw-r--r--drivers/block/aoe/aoechr.c18
-rw-r--r--drivers/block/aoe/aoecmd.c303
-rw-r--r--drivers/block/aoe/aoedev.c52
-rw-r--r--drivers/block/aoe/aoemain.c10
-rw-r--r--drivers/block/aoe/aoenet.c9
7 files changed, 287 insertions, 179 deletions
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index 6eebcb7be97e..6d111228cfac 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -1,5 +1,5 @@
1/* Copyright (c) 2004 Coraid, Inc. See COPYING for GPL terms. */ 1/* Copyright (c) 2006 Coraid, Inc. See COPYING for GPL terms. */
2#define VERSION "22" 2#define VERSION "32"
3#define AOE_MAJOR 152 3#define AOE_MAJOR 152
4#define DEVICE_NAME "aoe" 4#define DEVICE_NAME "aoe"
5 5
@@ -65,7 +65,7 @@ struct aoe_atahdr {
65struct aoe_cfghdr { 65struct aoe_cfghdr {
66 __be16 bufcnt; 66 __be16 bufcnt;
67 __be16 fwver; 67 __be16 fwver;
68 unsigned char res; 68 unsigned char scnt;
69 unsigned char aoeccmd; 69 unsigned char aoeccmd;
70 unsigned char cslen[2]; 70 unsigned char cslen[2];
71}; 71};
@@ -78,12 +78,14 @@ enum {
78 DEVFL_GDALLOC = (1<<4), /* need to alloc gendisk */ 78 DEVFL_GDALLOC = (1<<4), /* need to alloc gendisk */
79 DEVFL_PAUSE = (1<<5), 79 DEVFL_PAUSE = (1<<5),
80 DEVFL_NEWSIZE = (1<<6), /* need to update dev size in block layer */ 80 DEVFL_NEWSIZE = (1<<6), /* need to update dev size in block layer */
81 DEVFL_MAXBCNT = (1<<7), /* d->maxbcnt is not changeable */
82 DEVFL_KICKME = (1<<8),
81 83
82 BUFFL_FAIL = 1, 84 BUFFL_FAIL = 1,
83}; 85};
84 86
85enum { 87enum {
86 MAXATADATA = 1024, 88 DEFAULTBCNT = 2 * 512, /* 2 sectors */
87 NPERSHELF = 16, /* number of slots per shelf address */ 89 NPERSHELF = 16, /* number of slots per shelf address */
88 FREETAG = -1, 90 FREETAG = -1,
89 MIN_BUFS = 8, 91 MIN_BUFS = 8,
@@ -107,11 +109,9 @@ struct frame {
107 ulong waited; 109 ulong waited;
108 struct buf *buf; 110 struct buf *buf;
109 char *bufaddr; 111 char *bufaddr;
110 int writedatalen; 112 ulong bcnt;
111 int ndata; 113 sector_t lba;
112 114 struct sk_buff *skb;
113 /* largest possible */
114 unsigned char data[sizeof(struct aoe_hdr) + sizeof(struct aoe_atahdr)];
115}; 115};
116 116
117struct aoedev { 117struct aoedev {
@@ -121,9 +121,12 @@ struct aoedev {
121 ulong sysminor; 121 ulong sysminor;
122 ulong aoemajor; 122 ulong aoemajor;
123 ulong aoeminor; 123 ulong aoeminor;
124 ulong nopen; /* (bd_openers isn't available without sleeping) */ 124 u16 nopen; /* (bd_openers isn't available without sleeping) */
125 ulong rttavg; /* round trip average of requests/responses */ 125 u16 lasttag; /* last tag sent */
126 u16 rttavg; /* round trip average of requests/responses */
127 u16 mintimer;
126 u16 fw_ver; /* version of blade's firmware */ 128 u16 fw_ver; /* version of blade's firmware */
129 u16 maxbcnt;
127 struct work_struct work;/* disk create work struct */ 130 struct work_struct work;/* disk create work struct */
128 struct gendisk *gd; 131 struct gendisk *gd;
129 request_queue_t blkq; 132 request_queue_t blkq;
@@ -137,8 +140,8 @@ struct aoedev {
137 mempool_t *bufpool; /* for deadlock-free Buf allocation */ 140 mempool_t *bufpool; /* for deadlock-free Buf allocation */
138 struct list_head bufq; /* queue of bios to work on */ 141 struct list_head bufq; /* queue of bios to work on */
139 struct buf *inprocess; /* the one we're currently working on */ 142 struct buf *inprocess; /* the one we're currently working on */
140 ulong lasttag; /* last tag sent */ 143 ushort lostjumbo;
141 ulong nframes; /* number of frames below */ 144 ushort nframes; /* number of frames below */
142 struct frame *frames; 145 struct frame *frames;
143}; 146};
144 147
@@ -157,6 +160,7 @@ void aoecmd_cfg(ushort aoemajor, unsigned char aoeminor);
157void aoecmd_ata_rsp(struct sk_buff *); 160void aoecmd_ata_rsp(struct sk_buff *);
158void aoecmd_cfg_rsp(struct sk_buff *); 161void aoecmd_cfg_rsp(struct sk_buff *);
159void aoecmd_sleepwork(void *vp); 162void aoecmd_sleepwork(void *vp);
163struct sk_buff *new_skb(ulong);
160 164
161int aoedev_init(void); 165int aoedev_init(void);
162void aoedev_exit(void); 166void aoedev_exit(void);
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 393b86a3dbf8..d433f27e0ce2 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -1,4 +1,4 @@
1/* Copyright (c) 2004 Coraid, Inc. See COPYING for GPL terms. */ 1/* Copyright (c) 2006 Coraid, Inc. See COPYING for GPL terms. */
2/* 2/*
3 * aoeblk.c 3 * aoeblk.c
4 * block device routines 4 * block device routines
@@ -14,7 +14,6 @@
14 14
15static kmem_cache_t *buf_pool_cache; 15static kmem_cache_t *buf_pool_cache;
16 16
17/* add attributes for our block devices in sysfs */
18static ssize_t aoedisk_show_state(struct gendisk * disk, char *page) 17static ssize_t aoedisk_show_state(struct gendisk * disk, char *page)
19{ 18{
20 struct aoedev *d = disk->private_data; 19 struct aoedev *d = disk->private_data;
@@ -64,21 +63,26 @@ static struct disk_attribute disk_attr_fwver = {
64 .show = aoedisk_show_fwver 63 .show = aoedisk_show_fwver
65}; 64};
66 65
67static void 66static struct attribute *aoe_attrs[] = {
67 &disk_attr_state.attr,
68 &disk_attr_mac.attr,
69 &disk_attr_netif.attr,
70 &disk_attr_fwver.attr,
71};
72
73static const struct attribute_group attr_group = {
74 .attrs = aoe_attrs,
75};
76
77static int
68aoedisk_add_sysfs(struct aoedev *d) 78aoedisk_add_sysfs(struct aoedev *d)
69{ 79{
70 sysfs_create_file(&d->gd->kobj, &disk_attr_state.attr); 80 return sysfs_create_group(&d->gd->kobj, &attr_group);
71 sysfs_create_file(&d->gd->kobj, &disk_attr_mac.attr);
72 sysfs_create_file(&d->gd->kobj, &disk_attr_netif.attr);
73 sysfs_create_file(&d->gd->kobj, &disk_attr_fwver.attr);
74} 81}
75void 82void
76aoedisk_rm_sysfs(struct aoedev *d) 83aoedisk_rm_sysfs(struct aoedev *d)
77{ 84{
78 sysfs_remove_link(&d->gd->kobj, "state"); 85 sysfs_remove_group(&d->gd->kobj, &attr_group);
79 sysfs_remove_link(&d->gd->kobj, "mac");
80 sysfs_remove_link(&d->gd->kobj, "netif");
81 sysfs_remove_link(&d->gd->kobj, "firmware-version");
82} 86}
83 87
84static int 88static int
@@ -132,8 +136,7 @@ aoeblk_make_request(request_queue_t *q, struct bio *bio)
132 d = bio->bi_bdev->bd_disk->private_data; 136 d = bio->bi_bdev->bd_disk->private_data;
133 buf = mempool_alloc(d->bufpool, GFP_NOIO); 137 buf = mempool_alloc(d->bufpool, GFP_NOIO);
134 if (buf == NULL) { 138 if (buf == NULL) {
135 printk(KERN_INFO "aoe: aoeblk_make_request: buf allocation " 139 printk(KERN_INFO "aoe: buf allocation failure\n");
136 "failure\n");
137 bio_endio(bio, bio->bi_size, -ENOMEM); 140 bio_endio(bio, bio->bi_size, -ENOMEM);
138 return 0; 141 return 0;
139 } 142 }
@@ -143,14 +146,15 @@ aoeblk_make_request(request_queue_t *q, struct bio *bio)
143 buf->bio = bio; 146 buf->bio = bio;
144 buf->resid = bio->bi_size; 147 buf->resid = bio->bi_size;
145 buf->sector = bio->bi_sector; 148 buf->sector = bio->bi_sector;
146 buf->bv = buf->bio->bi_io_vec; 149 buf->bv = &bio->bi_io_vec[bio->bi_idx];
150 WARN_ON(buf->bv->bv_len == 0);
147 buf->bv_resid = buf->bv->bv_len; 151 buf->bv_resid = buf->bv->bv_len;
148 buf->bufaddr = page_address(buf->bv->bv_page) + buf->bv->bv_offset; 152 buf->bufaddr = page_address(buf->bv->bv_page) + buf->bv->bv_offset;
149 153
150 spin_lock_irqsave(&d->lock, flags); 154 spin_lock_irqsave(&d->lock, flags);
151 155
152 if ((d->flags & DEVFL_UP) == 0) { 156 if ((d->flags & DEVFL_UP) == 0) {
153 printk(KERN_INFO "aoe: aoeblk_make_request: device %ld.%ld is not up\n", 157 printk(KERN_INFO "aoe: device %ld.%ld is not up\n",
154 d->aoemajor, d->aoeminor); 158 d->aoemajor, d->aoeminor);
155 spin_unlock_irqrestore(&d->lock, flags); 159 spin_unlock_irqrestore(&d->lock, flags);
156 mempool_free(buf, d->bufpool); 160 mempool_free(buf, d->bufpool);
@@ -176,7 +180,7 @@ aoeblk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
176 struct aoedev *d = bdev->bd_disk->private_data; 180 struct aoedev *d = bdev->bd_disk->private_data;
177 181
178 if ((d->flags & DEVFL_UP) == 0) { 182 if ((d->flags & DEVFL_UP) == 0) {
179 printk(KERN_ERR "aoe: aoeblk_ioctl: disk not up\n"); 183 printk(KERN_ERR "aoe: disk not up\n");
180 return -ENODEV; 184 return -ENODEV;
181 } 185 }
182 186
@@ -203,8 +207,8 @@ aoeblk_gdalloc(void *vp)
203 207
204 gd = alloc_disk(AOE_PARTITIONS); 208 gd = alloc_disk(AOE_PARTITIONS);
205 if (gd == NULL) { 209 if (gd == NULL) {
206 printk(KERN_ERR "aoe: aoeblk_gdalloc: cannot allocate disk " 210 printk(KERN_ERR "aoe: cannot allocate disk structure for %ld.%ld\n",
207 "structure for %ld.%ld\n", d->aoemajor, d->aoeminor); 211 d->aoemajor, d->aoeminor);
208 spin_lock_irqsave(&d->lock, flags); 212 spin_lock_irqsave(&d->lock, flags);
209 d->flags &= ~DEVFL_GDALLOC; 213 d->flags &= ~DEVFL_GDALLOC;
210 spin_unlock_irqrestore(&d->lock, flags); 214 spin_unlock_irqrestore(&d->lock, flags);
@@ -213,8 +217,8 @@ aoeblk_gdalloc(void *vp)
213 217
214 d->bufpool = mempool_create_slab_pool(MIN_BUFS, buf_pool_cache); 218 d->bufpool = mempool_create_slab_pool(MIN_BUFS, buf_pool_cache);
215 if (d->bufpool == NULL) { 219 if (d->bufpool == NULL) {
216 printk(KERN_ERR "aoe: aoeblk_gdalloc: cannot allocate bufpool " 220 printk(KERN_ERR "aoe: cannot allocate bufpool for %ld.%ld\n",
217 "for %ld.%ld\n", d->aoemajor, d->aoeminor); 221 d->aoemajor, d->aoeminor);
218 put_disk(gd); 222 put_disk(gd);
219 spin_lock_irqsave(&d->lock, flags); 223 spin_lock_irqsave(&d->lock, flags);
220 d->flags &= ~DEVFL_GDALLOC; 224 d->flags &= ~DEVFL_GDALLOC;
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index 1bc1cf9603f1..e22b4c9520a9 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -1,4 +1,4 @@
1/* Copyright (c) 2004 Coraid, Inc. See COPYING for GPL terms. */ 1/* Copyright (c) 2006 Coraid, Inc. See COPYING for GPL terms. */
2/* 2/*
3 * aoechr.c 3 * aoechr.c
4 * AoE character device driver 4 * AoE character device driver
@@ -15,7 +15,6 @@ enum {
15 MINOR_INTERFACES, 15 MINOR_INTERFACES,
16 MINOR_REVALIDATE, 16 MINOR_REVALIDATE,
17 MSGSZ = 2048, 17 MSGSZ = 2048,
18 NARGS = 10,
19 NMSG = 100, /* message backlog to retain */ 18 NMSG = 100, /* message backlog to retain */
20}; 19};
21 20
@@ -56,9 +55,8 @@ static int
56interfaces(const char __user *str, size_t size) 55interfaces(const char __user *str, size_t size)
57{ 56{
58 if (set_aoe_iflist(str, size)) { 57 if (set_aoe_iflist(str, size)) {
59 printk(KERN_CRIT 58 printk(KERN_ERR
60 "%s: could not set interface list: %s\n", 59 "aoe: could not set interface list: too many interfaces\n");
61 __FUNCTION__, "too many interfaces");
62 return -EINVAL; 60 return -EINVAL;
63 } 61 }
64 return 0; 62 return 0;
@@ -81,8 +79,7 @@ revalidate(const char __user *str, size_t size)
81 /* should be e%d.%d format */ 79 /* should be e%d.%d format */
82 n = sscanf(buf, "e%d.%d", &major, &minor); 80 n = sscanf(buf, "e%d.%d", &major, &minor);
83 if (n != 2) { 81 if (n != 2) {
84 printk(KERN_ERR "aoe: %s: invalid device specification\n", 82 printk(KERN_ERR "aoe: invalid device specification\n");
85 __FUNCTION__);
86 return -EINVAL; 83 return -EINVAL;
87 } 84 }
88 d = aoedev_by_aoeaddr(major, minor); 85 d = aoedev_by_aoeaddr(major, minor);
@@ -90,6 +87,7 @@ revalidate(const char __user *str, size_t size)
90 return -EINVAL; 87 return -EINVAL;
91 88
92 spin_lock_irqsave(&d->lock, flags); 89 spin_lock_irqsave(&d->lock, flags);
90 d->flags &= ~DEVFL_MAXBCNT;
93 d->flags |= DEVFL_PAUSE; 91 d->flags |= DEVFL_PAUSE;
94 spin_unlock_irqrestore(&d->lock, flags); 92 spin_unlock_irqrestore(&d->lock, flags);
95 aoecmd_cfg(major, minor); 93 aoecmd_cfg(major, minor);
@@ -116,7 +114,7 @@ bail: spin_unlock_irqrestore(&emsgs_lock, flags);
116 114
117 mp = kmalloc(n, GFP_ATOMIC); 115 mp = kmalloc(n, GFP_ATOMIC);
118 if (mp == NULL) { 116 if (mp == NULL) {
119 printk(KERN_CRIT "aoe: aoechr_error: allocation failure, len=%ld\n", n); 117 printk(KERN_ERR "aoe: allocation failure, len=%ld\n", n);
120 goto bail; 118 goto bail;
121 } 119 }
122 120
@@ -141,7 +139,7 @@ aoechr_write(struct file *filp, const char __user *buf, size_t cnt, loff_t *offp
141 139
142 switch ((unsigned long) filp->private_data) { 140 switch ((unsigned long) filp->private_data) {
143 default: 141 default:
144 printk(KERN_INFO "aoe: aoechr_write: can't write to that file.\n"); 142 printk(KERN_INFO "aoe: can't write to that file.\n");
145 break; 143 break;
146 case MINOR_DISCOVER: 144 case MINOR_DISCOVER:
147 ret = discover(); 145 ret = discover();
@@ -250,7 +248,7 @@ aoechr_init(void)
250 248
251 n = register_chrdev(AOE_MAJOR, "aoechr", &aoe_fops); 249 n = register_chrdev(AOE_MAJOR, "aoechr", &aoe_fops);
252 if (n < 0) { 250 if (n < 0) {
253 printk(KERN_ERR "aoe: aoechr_init: can't register char device\n"); 251 printk(KERN_ERR "aoe: can't register char device\n");
254 return n; 252 return n;
255 } 253 }
256 sema_init(&emsgs_sema, 0); 254 sema_init(&emsgs_sema, 0);
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 39da28d344fe..8a13b1af8bab 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -1,4 +1,4 @@
1/* Copyright (c) 2004 Coraid, Inc. See COPYING for GPL terms. */ 1/* Copyright (c) 2006 Coraid, Inc. See COPYING for GPL terms. */
2/* 2/*
3 * aoecmd.c 3 * aoecmd.c
4 * Filesystem request handling methods 4 * Filesystem request handling methods
@@ -15,17 +15,19 @@
15#define TIMERTICK (HZ / 10) 15#define TIMERTICK (HZ / 10)
16#define MINTIMER (2 * TIMERTICK) 16#define MINTIMER (2 * TIMERTICK)
17#define MAXTIMER (HZ << 1) 17#define MAXTIMER (HZ << 1)
18#define MAXWAIT (60 * 3) /* After MAXWAIT seconds, give up and fail dev */
19 18
20static struct sk_buff * 19static int aoe_deadsecs = 60 * 3;
21new_skb(struct net_device *if_dev, ulong len) 20module_param(aoe_deadsecs, int, 0644);
21MODULE_PARM_DESC(aoe_deadsecs, "After aoe_deadsecs seconds, give up and fail dev.");
22
23struct sk_buff *
24new_skb(ulong len)
22{ 25{
23 struct sk_buff *skb; 26 struct sk_buff *skb;
24 27
25 skb = alloc_skb(len, GFP_ATOMIC); 28 skb = alloc_skb(len, GFP_ATOMIC);
26 if (skb) { 29 if (skb) {
27 skb->nh.raw = skb->mac.raw = skb->data; 30 skb->nh.raw = skb->mac.raw = skb->data;
28 skb->dev = if_dev;
29 skb->protocol = __constant_htons(ETH_P_AOE); 31 skb->protocol = __constant_htons(ETH_P_AOE);
30 skb->priority = 0; 32 skb->priority = 0;
31 skb_put(skb, len); 33 skb_put(skb, len);
@@ -40,29 +42,6 @@ new_skb(struct net_device *if_dev, ulong len)
40 return skb; 42 return skb;
41} 43}
42 44
43static struct sk_buff *
44skb_prepare(struct aoedev *d, struct frame *f)
45{
46 struct sk_buff *skb;
47 char *p;
48
49 skb = new_skb(d->ifp, f->ndata + f->writedatalen);
50 if (!skb) {
51 printk(KERN_INFO "aoe: skb_prepare: failure to allocate skb\n");
52 return NULL;
53 }
54
55 p = skb->mac.raw;
56 memcpy(p, f->data, f->ndata);
57
58 if (f->writedatalen) {
59 p += sizeof(struct aoe_hdr) + sizeof(struct aoe_atahdr);
60 memcpy(p, f->bufaddr, f->writedatalen);
61 }
62
63 return skb;
64}
65
66static struct frame * 45static struct frame *
67getframe(struct aoedev *d, int tag) 46getframe(struct aoedev *d, int tag)
68{ 47{
@@ -107,6 +86,17 @@ aoehdr_atainit(struct aoedev *d, struct aoe_hdr *h)
107 return host_tag; 86 return host_tag;
108} 87}
109 88
89static inline void
90put_lba(struct aoe_atahdr *ah, sector_t lba)
91{
92 ah->lba0 = lba;
93 ah->lba1 = lba >>= 8;
94 ah->lba2 = lba >>= 8;
95 ah->lba3 = lba >>= 8;
96 ah->lba4 = lba >>= 8;
97 ah->lba5 = lba >>= 8;
98}
99
110static void 100static void
111aoecmd_ata_rw(struct aoedev *d, struct frame *f) 101aoecmd_ata_rw(struct aoedev *d, struct frame *f)
112{ 102{
@@ -125,29 +115,27 @@ aoecmd_ata_rw(struct aoedev *d, struct frame *f)
125 115
126 sector = buf->sector; 116 sector = buf->sector;
127 bcnt = buf->bv_resid; 117 bcnt = buf->bv_resid;
128 if (bcnt > MAXATADATA) 118 if (bcnt > d->maxbcnt)
129 bcnt = MAXATADATA; 119 bcnt = d->maxbcnt;
130 120
131 /* initialize the headers & frame */ 121 /* initialize the headers & frame */
132 h = (struct aoe_hdr *) f->data; 122 skb = f->skb;
123 h = (struct aoe_hdr *) skb->mac.raw;
133 ah = (struct aoe_atahdr *) (h+1); 124 ah = (struct aoe_atahdr *) (h+1);
134 f->ndata = sizeof *h + sizeof *ah; 125 skb->len = sizeof *h + sizeof *ah;
135 memset(h, 0, f->ndata); 126 memset(h, 0, ETH_ZLEN);
136 f->tag = aoehdr_atainit(d, h); 127 f->tag = aoehdr_atainit(d, h);
137 f->waited = 0; 128 f->waited = 0;
138 f->buf = buf; 129 f->buf = buf;
139 f->bufaddr = buf->bufaddr; 130 f->bufaddr = buf->bufaddr;
131 f->bcnt = bcnt;
132 f->lba = sector;
140 133
141 /* set up ata header */ 134 /* set up ata header */
142 ah->scnt = bcnt >> 9; 135 ah->scnt = bcnt >> 9;
143 ah->lba0 = sector; 136 put_lba(ah, sector);
144 ah->lba1 = sector >>= 8;
145 ah->lba2 = sector >>= 8;
146 ah->lba3 = sector >>= 8;
147 if (d->flags & DEVFL_EXT) { 137 if (d->flags & DEVFL_EXT) {
148 ah->aflags |= AOEAFL_EXT; 138 ah->aflags |= AOEAFL_EXT;
149 ah->lba4 = sector >>= 8;
150 ah->lba5 = sector >>= 8;
151 } else { 139 } else {
152 extbit = 0; 140 extbit = 0;
153 ah->lba3 &= 0x0f; 141 ah->lba3 &= 0x0f;
@@ -155,11 +143,14 @@ aoecmd_ata_rw(struct aoedev *d, struct frame *f)
155 } 143 }
156 144
157 if (bio_data_dir(buf->bio) == WRITE) { 145 if (bio_data_dir(buf->bio) == WRITE) {
146 skb_fill_page_desc(skb, 0, virt_to_page(f->bufaddr),
147 offset_in_page(f->bufaddr), bcnt);
158 ah->aflags |= AOEAFL_WRITE; 148 ah->aflags |= AOEAFL_WRITE;
159 f->writedatalen = bcnt; 149 skb->len += bcnt;
150 skb->data_len = bcnt;
160 } else { 151 } else {
152 skb->len = ETH_ZLEN;
161 writebit = 0; 153 writebit = 0;
162 f->writedatalen = 0;
163 } 154 }
164 155
165 ah->cmdstat = WIN_READ | writebit | extbit; 156 ah->cmdstat = WIN_READ | writebit | extbit;
@@ -168,26 +159,27 @@ aoecmd_ata_rw(struct aoedev *d, struct frame *f)
168 buf->nframesout += 1; 159 buf->nframesout += 1;
169 buf->bufaddr += bcnt; 160 buf->bufaddr += bcnt;
170 buf->bv_resid -= bcnt; 161 buf->bv_resid -= bcnt;
171/* printk(KERN_INFO "aoe: bv_resid=%ld\n", buf->bv_resid); */ 162/* printk(KERN_DEBUG "aoe: bv_resid=%ld\n", buf->bv_resid); */
172 buf->resid -= bcnt; 163 buf->resid -= bcnt;
173 buf->sector += bcnt >> 9; 164 buf->sector += bcnt >> 9;
174 if (buf->resid == 0) { 165 if (buf->resid == 0) {
175 d->inprocess = NULL; 166 d->inprocess = NULL;
176 } else if (buf->bv_resid == 0) { 167 } else if (buf->bv_resid == 0) {
177 buf->bv++; 168 buf->bv++;
169 WARN_ON(buf->bv->bv_len == 0);
178 buf->bv_resid = buf->bv->bv_len; 170 buf->bv_resid = buf->bv->bv_len;
179 buf->bufaddr = page_address(buf->bv->bv_page) + buf->bv->bv_offset; 171 buf->bufaddr = page_address(buf->bv->bv_page) + buf->bv->bv_offset;
180 } 172 }
181 173
182 skb = skb_prepare(d, f); 174 skb->dev = d->ifp;
183 if (skb) { 175 skb = skb_clone(skb, GFP_ATOMIC);
184 skb->next = NULL; 176 if (skb == NULL)
185 if (d->sendq_hd) 177 return;
186 d->sendq_tl->next = skb; 178 if (d->sendq_hd)
187 else 179 d->sendq_tl->next = skb;
188 d->sendq_hd = skb; 180 else
189 d->sendq_tl = skb; 181 d->sendq_hd = skb;
190 } 182 d->sendq_tl = skb;
191} 183}
192 184
193/* some callers cannot sleep, and they can call this function, 185/* some callers cannot sleep, and they can call this function,
@@ -209,11 +201,12 @@ aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff **tail)
209 if (!is_aoe_netif(ifp)) 201 if (!is_aoe_netif(ifp))
210 continue; 202 continue;
211 203
212 skb = new_skb(ifp, sizeof *h + sizeof *ch); 204 skb = new_skb(sizeof *h + sizeof *ch);
213 if (skb == NULL) { 205 if (skb == NULL) {
214 printk(KERN_INFO "aoe: aoecmd_cfg: skb alloc failure\n"); 206 printk(KERN_INFO "aoe: skb alloc failure\n");
215 continue; 207 continue;
216 } 208 }
209 skb->dev = ifp;
217 if (sl_tail == NULL) 210 if (sl_tail == NULL)
218 sl_tail = skb; 211 sl_tail = skb;
219 h = (struct aoe_hdr *) skb->mac.raw; 212 h = (struct aoe_hdr *) skb->mac.raw;
@@ -237,6 +230,29 @@ aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff **tail)
237 return sl; 230 return sl;
238} 231}
239 232
233static struct frame *
234freeframe(struct aoedev *d)
235{
236 struct frame *f, *e;
237 int n = 0;
238
239 f = d->frames;
240 e = f + d->nframes;
241 for (; f<e; f++) {
242 if (f->tag != FREETAG)
243 continue;
244 if (atomic_read(&skb_shinfo(f->skb)->dataref) == 1) {
245 skb_shinfo(f->skb)->nr_frags = f->skb->data_len = 0;
246 return f;
247 }
248 n++;
249 }
250 if (n == d->nframes) /* wait for network layer */
251 d->flags |= DEVFL_KICKME;
252
253 return NULL;
254}
255
240/* enters with d->lock held */ 256/* enters with d->lock held */
241void 257void
242aoecmd_work(struct aoedev *d) 258aoecmd_work(struct aoedev *d)
@@ -252,7 +268,7 @@ aoecmd_work(struct aoedev *d)
252 } 268 }
253 269
254loop: 270loop:
255 f = getframe(d, FREETAG); 271 f = freeframe(d);
256 if (f == NULL) 272 if (f == NULL)
257 return; 273 return;
258 if (d->inprocess == NULL) { 274 if (d->inprocess == NULL) {
@@ -260,7 +276,7 @@ loop:
260 return; 276 return;
261 buf = container_of(d->bufq.next, struct buf, bufs); 277 buf = container_of(d->bufq.next, struct buf, bufs);
262 list_del(d->bufq.next); 278 list_del(d->bufq.next);
263/*printk(KERN_INFO "aoecmd_work: bi_size=%ld\n", buf->bio->bi_size); */ 279/*printk(KERN_DEBUG "aoe: bi_size=%ld\n", buf->bio->bi_size); */
264 d->inprocess = buf; 280 d->inprocess = buf;
265 } 281 }
266 aoecmd_ata_rw(d, f); 282 aoecmd_ata_rw(d, f);
@@ -272,6 +288,7 @@ rexmit(struct aoedev *d, struct frame *f)
272{ 288{
273 struct sk_buff *skb; 289 struct sk_buff *skb;
274 struct aoe_hdr *h; 290 struct aoe_hdr *h;
291 struct aoe_atahdr *ah;
275 char buf[128]; 292 char buf[128];
276 u32 n; 293 u32 n;
277 294
@@ -283,21 +300,41 @@ rexmit(struct aoedev *d, struct frame *f)
283 d->aoemajor, d->aoeminor, f->tag, jiffies, n); 300 d->aoemajor, d->aoeminor, f->tag, jiffies, n);
284 aoechr_error(buf); 301 aoechr_error(buf);
285 302
286 h = (struct aoe_hdr *) f->data; 303 skb = f->skb;
304 h = (struct aoe_hdr *) skb->mac.raw;
305 ah = (struct aoe_atahdr *) (h+1);
287 f->tag = n; 306 f->tag = n;
288 h->tag = cpu_to_be32(n); 307 h->tag = cpu_to_be32(n);
289 memcpy(h->dst, d->addr, sizeof h->dst); 308 memcpy(h->dst, d->addr, sizeof h->dst);
290 memcpy(h->src, d->ifp->dev_addr, sizeof h->src); 309 memcpy(h->src, d->ifp->dev_addr, sizeof h->src);
291 310
292 skb = skb_prepare(d, f); 311 n = DEFAULTBCNT / 512;
293 if (skb) { 312 if (ah->scnt > n) {
294 skb->next = NULL; 313 ah->scnt = n;
295 if (d->sendq_hd) 314 if (ah->aflags & AOEAFL_WRITE) {
296 d->sendq_tl->next = skb; 315 skb_fill_page_desc(skb, 0, virt_to_page(f->bufaddr),
297 else 316 offset_in_page(f->bufaddr), DEFAULTBCNT);
298 d->sendq_hd = skb; 317 skb->len = sizeof *h + sizeof *ah + DEFAULTBCNT;
299 d->sendq_tl = skb; 318 skb->data_len = DEFAULTBCNT;
319 }
320 if (++d->lostjumbo > (d->nframes << 1))
321 if (d->maxbcnt != DEFAULTBCNT) {
322 printk(KERN_INFO "aoe: e%ld.%ld: too many lost jumbo on %s - using 1KB frames.\n",
323 d->aoemajor, d->aoeminor, d->ifp->name);
324 d->maxbcnt = DEFAULTBCNT;
325 d->flags |= DEVFL_MAXBCNT;
326 }
300 } 327 }
328
329 skb->dev = d->ifp;
330 skb = skb_clone(skb, GFP_ATOMIC);
331 if (skb == NULL)
332 return;
333 if (d->sendq_hd)
334 d->sendq_tl->next = skb;
335 else
336 d->sendq_hd = skb;
337 d->sendq_tl = skb;
301} 338}
302 339
303static int 340static int
@@ -340,13 +377,17 @@ rexmit_timer(ulong vp)
340 if (f->tag != FREETAG && tsince(f->tag) >= timeout) { 377 if (f->tag != FREETAG && tsince(f->tag) >= timeout) {
341 n = f->waited += timeout; 378 n = f->waited += timeout;
342 n /= HZ; 379 n /= HZ;
343 if (n > MAXWAIT) { /* waited too long. device failure. */ 380 if (n > aoe_deadsecs) { /* waited too long for response */
344 aoedev_downdev(d); 381 aoedev_downdev(d);
345 break; 382 break;
346 } 383 }
347 rexmit(d, f); 384 rexmit(d, f);
348 } 385 }
349 } 386 }
387 if (d->flags & DEVFL_KICKME) {
388 d->flags &= ~DEVFL_KICKME;
389 aoecmd_work(d);
390 }
350 391
351 sl = d->sendq_hd; 392 sl = d->sendq_hd;
352 d->sendq_hd = d->sendq_tl = NULL; 393 d->sendq_hd = d->sendq_tl = NULL;
@@ -431,8 +472,8 @@ ataid_complete(struct aoedev *d, unsigned char *id)
431 } 472 }
432 473
433 if (d->ssize != ssize) 474 if (d->ssize != ssize)
434 printk(KERN_INFO "aoe: %012llx e%lu.%lu v%04x has %llu " 475 printk(KERN_INFO "aoe: %012llx e%lu.%lu v%04x has %llu sectors\n",
435 "sectors\n", (unsigned long long)mac_addr(d->addr), 476 (unsigned long long)mac_addr(d->addr),
436 d->aoemajor, d->aoeminor, 477 d->aoemajor, d->aoeminor,
437 d->fw_ver, (long long)ssize); 478 d->fw_ver, (long long)ssize);
438 d->ssize = ssize; 479 d->ssize = ssize;
@@ -442,11 +483,9 @@ ataid_complete(struct aoedev *d, unsigned char *id)
442 d->flags |= DEVFL_NEWSIZE; 483 d->flags |= DEVFL_NEWSIZE;
443 } else { 484 } else {
444 if (d->flags & DEVFL_GDALLOC) { 485 if (d->flags & DEVFL_GDALLOC) {
445 printk(KERN_INFO "aoe: %s: %s e%lu.%lu, %s\n", 486 printk(KERN_ERR "aoe: can't schedule work for e%lu.%lu, %s\n",
446 __FUNCTION__,
447 "can't schedule work for",
448 d->aoemajor, d->aoeminor, 487 d->aoemajor, d->aoeminor,
449 "it's already on! (This really shouldn't happen).\n"); 488 "it's already on! This shouldn't happen.\n");
450 return; 489 return;
451 } 490 }
452 d->flags |= DEVFL_GDALLOC; 491 d->flags |= DEVFL_GDALLOC;
@@ -460,8 +499,15 @@ calc_rttavg(struct aoedev *d, int rtt)
460 register long n; 499 register long n;
461 500
462 n = rtt; 501 n = rtt;
463 if (n < MINTIMER) 502 if (n < 0) {
464 n = MINTIMER; 503 n = -rtt;
504 if (n < MINTIMER)
505 n = MINTIMER;
506 else if (n > MAXTIMER)
507 n = MAXTIMER;
508 d->mintimer += (n - d->mintimer) >> 1;
509 } else if (n < d->mintimer)
510 n = d->mintimer;
465 else if (n > MAXTIMER) 511 else if (n > MAXTIMER)
466 n = MAXTIMER; 512 n = MAXTIMER;
467 513
@@ -474,7 +520,7 @@ void
474aoecmd_ata_rsp(struct sk_buff *skb) 520aoecmd_ata_rsp(struct sk_buff *skb)
475{ 521{
476 struct aoedev *d; 522 struct aoedev *d;
477 struct aoe_hdr *hin; 523 struct aoe_hdr *hin, *hout;
478 struct aoe_atahdr *ahin, *ahout; 524 struct aoe_atahdr *ahin, *ahout;
479 struct frame *f; 525 struct frame *f;
480 struct buf *buf; 526 struct buf *buf;
@@ -497,8 +543,10 @@ aoecmd_ata_rsp(struct sk_buff *skb)
497 543
498 spin_lock_irqsave(&d->lock, flags); 544 spin_lock_irqsave(&d->lock, flags);
499 545
500 f = getframe(d, be32_to_cpu(hin->tag)); 546 n = be32_to_cpu(hin->tag);
547 f = getframe(d, n);
501 if (f == NULL) { 548 if (f == NULL) {
549 calc_rttavg(d, -tsince(n));
502 spin_unlock_irqrestore(&d->lock, flags); 550 spin_unlock_irqrestore(&d->lock, flags);
503 snprintf(ebuf, sizeof ebuf, 551 snprintf(ebuf, sizeof ebuf,
504 "%15s e%d.%d tag=%08x@%08lx\n", 552 "%15s e%d.%d tag=%08x@%08lx\n",
@@ -514,26 +562,27 @@ aoecmd_ata_rsp(struct sk_buff *skb)
514 calc_rttavg(d, tsince(f->tag)); 562 calc_rttavg(d, tsince(f->tag));
515 563
516 ahin = (struct aoe_atahdr *) (hin+1); 564 ahin = (struct aoe_atahdr *) (hin+1);
517 ahout = (struct aoe_atahdr *) (f->data + sizeof(struct aoe_hdr)); 565 hout = (struct aoe_hdr *) f->skb->mac.raw;
566 ahout = (struct aoe_atahdr *) (hout+1);
518 buf = f->buf; 567 buf = f->buf;
519 568
520 if (ahout->cmdstat == WIN_IDENTIFY) 569 if (ahout->cmdstat == WIN_IDENTIFY)
521 d->flags &= ~DEVFL_PAUSE; 570 d->flags &= ~DEVFL_PAUSE;
522 if (ahin->cmdstat & 0xa9) { /* these bits cleared on success */ 571 if (ahin->cmdstat & 0xa9) { /* these bits cleared on success */
523 printk(KERN_CRIT "aoe: aoecmd_ata_rsp: ata error cmd=%2.2Xh " 572 printk(KERN_ERR
524 "stat=%2.2Xh from e%ld.%ld\n", 573 "aoe: ata error cmd=%2.2Xh stat=%2.2Xh from e%ld.%ld\n",
525 ahout->cmdstat, ahin->cmdstat, 574 ahout->cmdstat, ahin->cmdstat,
526 d->aoemajor, d->aoeminor); 575 d->aoemajor, d->aoeminor);
527 if (buf) 576 if (buf)
528 buf->flags |= BUFFL_FAIL; 577 buf->flags |= BUFFL_FAIL;
529 } else { 578 } else {
579 n = ahout->scnt << 9;
530 switch (ahout->cmdstat) { 580 switch (ahout->cmdstat) {
531 case WIN_READ: 581 case WIN_READ:
532 case WIN_READ_EXT: 582 case WIN_READ_EXT:
533 n = ahout->scnt << 9;
534 if (skb->len - sizeof *hin - sizeof *ahin < n) { 583 if (skb->len - sizeof *hin - sizeof *ahin < n) {
535 printk(KERN_CRIT "aoe: aoecmd_ata_rsp: runt " 584 printk(KERN_ERR
536 "ata data size in read. skb->len=%d\n", 585 "aoe: runt data size in read. skb->len=%d\n",
537 skb->len); 586 skb->len);
538 /* fail frame f? just returning will rexmit. */ 587 /* fail frame f? just returning will rexmit. */
539 spin_unlock_irqrestore(&d->lock, flags); 588 spin_unlock_irqrestore(&d->lock, flags);
@@ -542,22 +591,49 @@ aoecmd_ata_rsp(struct sk_buff *skb)
542 memcpy(f->bufaddr, ahin+1, n); 591 memcpy(f->bufaddr, ahin+1, n);
543 case WIN_WRITE: 592 case WIN_WRITE:
544 case WIN_WRITE_EXT: 593 case WIN_WRITE_EXT:
594 if (f->bcnt -= n) {
595 skb = f->skb;
596 f->bufaddr += n;
597 put_lba(ahout, f->lba += ahout->scnt);
598 n = f->bcnt;
599 if (n > DEFAULTBCNT)
600 n = DEFAULTBCNT;
601 ahout->scnt = n >> 9;
602 if (ahout->aflags & AOEAFL_WRITE) {
603 skb_fill_page_desc(skb, 0,
604 virt_to_page(f->bufaddr),
605 offset_in_page(f->bufaddr), n);
606 skb->len = sizeof *hout + sizeof *ahout + n;
607 skb->data_len = n;
608 }
609 f->tag = newtag(d);
610 hout->tag = cpu_to_be32(f->tag);
611 skb->dev = d->ifp;
612 skb = skb_clone(skb, GFP_ATOMIC);
613 spin_unlock_irqrestore(&d->lock, flags);
614 if (skb)
615 aoenet_xmit(skb);
616 return;
617 }
618 if (n > DEFAULTBCNT)
619 d->lostjumbo = 0;
545 break; 620 break;
546 case WIN_IDENTIFY: 621 case WIN_IDENTIFY:
547 if (skb->len - sizeof *hin - sizeof *ahin < 512) { 622 if (skb->len - sizeof *hin - sizeof *ahin < 512) {
548 printk(KERN_INFO "aoe: aoecmd_ata_rsp: runt data size " 623 printk(KERN_INFO
549 "in ataid. skb->len=%d\n", skb->len); 624 "aoe: runt data size in ataid. skb->len=%d\n",
625 skb->len);
550 spin_unlock_irqrestore(&d->lock, flags); 626 spin_unlock_irqrestore(&d->lock, flags);
551 return; 627 return;
552 } 628 }
553 ataid_complete(d, (char *) (ahin+1)); 629 ataid_complete(d, (char *) (ahin+1));
554 break; 630 break;
555 default: 631 default:
556 printk(KERN_INFO "aoe: aoecmd_ata_rsp: unrecognized " 632 printk(KERN_INFO
557 "outbound ata command %2.2Xh for %d.%d\n", 633 "aoe: unrecognized ata command %2.2Xh for %d.%d\n",
558 ahout->cmdstat, 634 ahout->cmdstat,
559 be16_to_cpu(hin->major), 635 be16_to_cpu(hin->major),
560 hin->minor); 636 hin->minor);
561 } 637 }
562 } 638 }
563 639
@@ -612,33 +688,32 @@ aoecmd_ata_id(struct aoedev *d)
612 struct frame *f; 688 struct frame *f;
613 struct sk_buff *skb; 689 struct sk_buff *skb;
614 690
615 f = getframe(d, FREETAG); 691 f = freeframe(d);
616 if (f == NULL) { 692 if (f == NULL) {
617 printk(KERN_CRIT "aoe: aoecmd_ata_id: can't get a frame. " 693 printk(KERN_ERR "aoe: can't get a frame. This shouldn't happen.\n");
618 "This shouldn't happen.\n");
619 return NULL; 694 return NULL;
620 } 695 }
621 696
622 /* initialize the headers & frame */ 697 /* initialize the headers & frame */
623 h = (struct aoe_hdr *) f->data; 698 skb = f->skb;
699 h = (struct aoe_hdr *) skb->mac.raw;
624 ah = (struct aoe_atahdr *) (h+1); 700 ah = (struct aoe_atahdr *) (h+1);
625 f->ndata = sizeof *h + sizeof *ah; 701 skb->len = ETH_ZLEN;
626 memset(h, 0, f->ndata); 702 memset(h, 0, ETH_ZLEN);
627 f->tag = aoehdr_atainit(d, h); 703 f->tag = aoehdr_atainit(d, h);
628 f->waited = 0; 704 f->waited = 0;
629 f->writedatalen = 0;
630 705
631 /* set up ata header */ 706 /* set up ata header */
632 ah->scnt = 1; 707 ah->scnt = 1;
633 ah->cmdstat = WIN_IDENTIFY; 708 ah->cmdstat = WIN_IDENTIFY;
634 ah->lba3 = 0xa0; 709 ah->lba3 = 0xa0;
635 710
636 skb = skb_prepare(d, f); 711 skb->dev = d->ifp;
637 712
638 d->rttavg = MAXTIMER; 713 d->rttavg = MAXTIMER;
639 d->timer.function = rexmit_timer; 714 d->timer.function = rexmit_timer;
640 715
641 return skb; 716 return skb_clone(skb, GFP_ATOMIC);
642} 717}
643 718
644void 719void
@@ -648,9 +723,9 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
648 struct aoe_hdr *h; 723 struct aoe_hdr *h;
649 struct aoe_cfghdr *ch; 724 struct aoe_cfghdr *ch;
650 ulong flags, sysminor, aoemajor; 725 ulong flags, sysminor, aoemajor;
651 u16 bufcnt;
652 struct sk_buff *sl; 726 struct sk_buff *sl;
653 enum { MAXFRAMES = 16 }; 727 enum { MAXFRAMES = 16 };
728 u16 n;
654 729
655 h = (struct aoe_hdr *) skb->mac.raw; 730 h = (struct aoe_hdr *) skb->mac.raw;
656 ch = (struct aoe_cfghdr *) (h+1); 731 ch = (struct aoe_cfghdr *) (h+1);
@@ -661,26 +736,25 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
661 */ 736 */
662 aoemajor = be16_to_cpu(h->major); 737 aoemajor = be16_to_cpu(h->major);
663 if (aoemajor == 0xfff) { 738 if (aoemajor == 0xfff) {
664 printk(KERN_CRIT "aoe: aoecmd_cfg_rsp: Warning: shelf " 739 printk(KERN_ERR "aoe: Warning: shelf address is all ones. "
665 "address is all ones. Check shelf dip switches\n"); 740 "Check shelf dip switches.\n");
666 return; 741 return;
667 } 742 }
668 743
669 sysminor = SYSMINOR(aoemajor, h->minor); 744 sysminor = SYSMINOR(aoemajor, h->minor);
670 if (sysminor * AOE_PARTITIONS + AOE_PARTITIONS > MINORMASK) { 745 if (sysminor * AOE_PARTITIONS + AOE_PARTITIONS > MINORMASK) {
671 printk(KERN_INFO 746 printk(KERN_INFO "aoe: e%ld.%d: minor number too large\n",
672 "aoe: e%ld.%d: minor number too large\n",
673 aoemajor, (int) h->minor); 747 aoemajor, (int) h->minor);
674 return; 748 return;
675 } 749 }
676 750
677 bufcnt = be16_to_cpu(ch->bufcnt); 751 n = be16_to_cpu(ch->bufcnt);
678 if (bufcnt > MAXFRAMES) /* keep it reasonable */ 752 if (n > MAXFRAMES) /* keep it reasonable */
679 bufcnt = MAXFRAMES; 753 n = MAXFRAMES;
680 754
681 d = aoedev_by_sysminor_m(sysminor, bufcnt); 755 d = aoedev_by_sysminor_m(sysminor, n);
682 if (d == NULL) { 756 if (d == NULL) {
683 printk(KERN_INFO "aoe: aoecmd_cfg_rsp: device sysminor_m failure\n"); 757 printk(KERN_INFO "aoe: device sysminor_m failure\n");
684 return; 758 return;
685 } 759 }
686 760
@@ -689,6 +763,20 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
689 /* permit device to migrate mac and network interface */ 763 /* permit device to migrate mac and network interface */
690 d->ifp = skb->dev; 764 d->ifp = skb->dev;
691 memcpy(d->addr, h->src, sizeof d->addr); 765 memcpy(d->addr, h->src, sizeof d->addr);
766 if (!(d->flags & DEVFL_MAXBCNT)) {
767 n = d->ifp->mtu;
768 n -= sizeof (struct aoe_hdr) + sizeof (struct aoe_atahdr);
769 n /= 512;
770 if (n > ch->scnt)
771 n = ch->scnt;
772 n = n ? n * 512 : DEFAULTBCNT;
773 if (n != d->maxbcnt) {
774 printk(KERN_INFO
775 "aoe: e%ld.%ld: setting %d byte data frames on %s\n",
776 d->aoemajor, d->aoeminor, n, d->ifp->name);
777 d->maxbcnt = n;
778 }
779 }
692 780
693 /* don't change users' perspective */ 781 /* don't change users' perspective */
694 if (d->nopen && !(d->flags & DEVFL_PAUSE)) { 782 if (d->nopen && !(d->flags & DEVFL_PAUSE)) {
@@ -696,6 +784,7 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
696 return; 784 return;
697 } 785 }
698 d->flags |= DEVFL_PAUSE; /* force pause */ 786 d->flags |= DEVFL_PAUSE; /* force pause */
787 d->mintimer = MINTIMER;
699 d->fw_ver = be16_to_cpu(ch->fwver); 788 d->fw_ver = be16_to_cpu(ch->fwver);
700 789
701 /* check for already outstanding ataid */ 790 /* check for already outstanding ataid */
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index ed4258a62df5..6125921bbec4 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -1,4 +1,4 @@
1/* Copyright (c) 2004 Coraid, Inc. See COPYING for GPL terms. */ 1/* Copyright (c) 2006 Coraid, Inc. See COPYING for GPL terms. */
2/* 2/*
3 * aoedev.c 3 * aoedev.c
4 * AoE device utility functions; maintains device list. 4 * AoE device utility functions; maintains device list.
@@ -20,11 +20,8 @@ aoedev_isbusy(struct aoedev *d)
20 f = d->frames; 20 f = d->frames;
21 e = f + d->nframes; 21 e = f + d->nframes;
22 do { 22 do {
23 if (f->tag != FREETAG) { 23 if (f->tag != FREETAG)
24 printk(KERN_DEBUG "aoe: %ld.%ld isbusy\n",
25 d->aoemajor, d->aoeminor);
26 return 1; 24 return 1;
27 }
28 } while (++f < e); 25 } while (++f < e);
29 26
30 return 0; 27 return 0;
@@ -66,22 +63,32 @@ aoedev_newdev(ulong nframes)
66 struct frame *f, *e; 63 struct frame *f, *e;
67 64
68 d = kzalloc(sizeof *d, GFP_ATOMIC); 65 d = kzalloc(sizeof *d, GFP_ATOMIC);
69 if (d == NULL)
70 return NULL;
71 f = kcalloc(nframes, sizeof *f, GFP_ATOMIC); 66 f = kcalloc(nframes, sizeof *f, GFP_ATOMIC);
72 if (f == NULL) { 67 switch (!d || !f) {
73 kfree(d); 68 case 0:
69 d->nframes = nframes;
70 d->frames = f;
71 e = f + nframes;
72 for (; f<e; f++) {
73 f->tag = FREETAG;
74 f->skb = new_skb(ETH_ZLEN);
75 if (!f->skb)
76 break;
77 }
78 if (f == e)
79 break;
80 while (f > d->frames) {
81 f--;
82 dev_kfree_skb(f->skb);
83 }
84 default:
85 if (f)
86 kfree(f);
87 if (d)
88 kfree(d);
74 return NULL; 89 return NULL;
75 } 90 }
76
77 INIT_WORK(&d->work, aoecmd_sleepwork, d); 91 INIT_WORK(&d->work, aoecmd_sleepwork, d);
78
79 d->nframes = nframes;
80 d->frames = f;
81 e = f + nframes;
82 for (; f<e; f++)
83 f->tag = FREETAG;
84
85 spin_lock_init(&d->lock); 92 spin_lock_init(&d->lock);
86 init_timer(&d->timer); 93 init_timer(&d->timer);
87 d->timer.data = (ulong) d; 94 d->timer.data = (ulong) d;
@@ -114,6 +121,7 @@ aoedev_downdev(struct aoedev *d)
114 mempool_free(buf, d->bufpool); 121 mempool_free(buf, d->bufpool);
115 bio_endio(bio, bio->bi_size, -EIO); 122 bio_endio(bio, bio->bi_size, -EIO);
116 } 123 }
124 skb_shinfo(f->skb)->nr_frags = f->skb->data_len = 0;
117 } 125 }
118 d->inprocess = NULL; 126 d->inprocess = NULL;
119 127
@@ -148,7 +156,7 @@ aoedev_by_sysminor_m(ulong sysminor, ulong bufcnt)
148 d = aoedev_newdev(bufcnt); 156 d = aoedev_newdev(bufcnt);
149 if (d == NULL) { 157 if (d == NULL) {
150 spin_unlock_irqrestore(&devlist_lock, flags); 158 spin_unlock_irqrestore(&devlist_lock, flags);
151 printk(KERN_INFO "aoe: aoedev_set: aoedev_newdev failure.\n"); 159 printk(KERN_INFO "aoe: aoedev_newdev failure.\n");
152 return NULL; 160 return NULL;
153 } 161 }
154 d->sysminor = sysminor; 162 d->sysminor = sysminor;
@@ -163,11 +171,19 @@ aoedev_by_sysminor_m(ulong sysminor, ulong bufcnt)
163static void 171static void
164aoedev_freedev(struct aoedev *d) 172aoedev_freedev(struct aoedev *d)
165{ 173{
174 struct frame *f, *e;
175
166 if (d->gd) { 176 if (d->gd) {
167 aoedisk_rm_sysfs(d); 177 aoedisk_rm_sysfs(d);
168 del_gendisk(d->gd); 178 del_gendisk(d->gd);
169 put_disk(d->gd); 179 put_disk(d->gd);
170 } 180 }
181 f = d->frames;
182 e = f + d->nframes;
183 for (; f<e; f++) {
184 skb_shinfo(f->skb)->nr_frags = 0;
185 dev_kfree_skb(f->skb);
186 }
171 kfree(d->frames); 187 kfree(d->frames);
172 if (d->bufpool) 188 if (d->bufpool)
173 mempool_destroy(d->bufpool); 189 mempool_destroy(d->bufpool);
diff --git a/drivers/block/aoe/aoemain.c b/drivers/block/aoe/aoemain.c
index de08491ebe66..a04b7d613299 100644
--- a/drivers/block/aoe/aoemain.c
+++ b/drivers/block/aoe/aoemain.c
@@ -1,4 +1,4 @@
1/* Copyright (c) 2004 Coraid, Inc. See COPYING for GPL terms. */ 1/* Copyright (c) 2006 Coraid, Inc. See COPYING for GPL terms. */
2/* 2/*
3 * aoemain.c 3 * aoemain.c
4 * Module initialization routines, discover timer 4 * Module initialization routines, discover timer
@@ -84,13 +84,11 @@ aoe_init(void)
84 goto net_fail; 84 goto net_fail;
85 ret = register_blkdev(AOE_MAJOR, DEVICE_NAME); 85 ret = register_blkdev(AOE_MAJOR, DEVICE_NAME);
86 if (ret < 0) { 86 if (ret < 0) {
87 printk(KERN_ERR "aoe: aoeblk_init: can't register major\n"); 87 printk(KERN_ERR "aoe: can't register major\n");
88 goto blkreg_fail; 88 goto blkreg_fail;
89 } 89 }
90 90
91 printk(KERN_INFO 91 printk(KERN_INFO "aoe: AoE v%s initialised.\n", VERSION);
92 "aoe: aoe_init: AoE v%s initialised.\n",
93 VERSION);
94 discover_timer(TINIT); 92 discover_timer(TINIT);
95 return 0; 93 return 0;
96 94
@@ -103,7 +101,7 @@ aoe_init(void)
103 chr_fail: 101 chr_fail:
104 aoedev_exit(); 102 aoedev_exit();
105 103
106 printk(KERN_INFO "aoe: aoe_init: initialisation failure.\n"); 104 printk(KERN_INFO "aoe: initialisation failure.\n");
107 return ret; 105 return ret;
108} 106}
109 107
diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
index c1434ed11880..9626e0f5da9d 100644
--- a/drivers/block/aoe/aoenet.c
+++ b/drivers/block/aoe/aoenet.c
@@ -1,4 +1,4 @@
1/* Copyright (c) 2004 Coraid, Inc. See COPYING for GPL terms. */ 1/* Copyright (c) 2006 Coraid, Inc. See COPYING for GPL terms. */
2/* 2/*
3 * aoenet.c 3 * aoenet.c
4 * Ethernet portion of AoE driver 4 * Ethernet portion of AoE driver
@@ -74,7 +74,7 @@ set_aoe_iflist(const char __user *user_str, size_t size)
74 return -EINVAL; 74 return -EINVAL;
75 75
76 if (copy_from_user(aoe_iflist, user_str, size)) { 76 if (copy_from_user(aoe_iflist, user_str, size)) {
77 printk(KERN_INFO "aoe: %s: copy from user failed\n", __FUNCTION__); 77 printk(KERN_INFO "aoe: copy from user failed\n");
78 return -EFAULT; 78 return -EFAULT;
79 } 79 }
80 aoe_iflist[size] = 0x00; 80 aoe_iflist[size] = 0x00;
@@ -132,8 +132,7 @@ aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt,
132 if (n > NECODES) 132 if (n > NECODES)
133 n = 0; 133 n = 0;
134 if (net_ratelimit()) 134 if (net_ratelimit())
135 printk(KERN_ERR "aoe: aoenet_rcv: error packet from %d.%d; " 135 printk(KERN_ERR "aoe: error packet from %d.%d; ecode=%d '%s'\n",
136 "ecode=%d '%s'\n",
137 be16_to_cpu(h->major), h->minor, 136 be16_to_cpu(h->major), h->minor,
138 h->err, aoe_errlist[n]); 137 h->err, aoe_errlist[n]);
139 goto exit; 138 goto exit;
@@ -147,7 +146,7 @@ aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt,
147 aoecmd_cfg_rsp(skb); 146 aoecmd_cfg_rsp(skb);
148 break; 147 break;
149 default: 148 default:
150 printk(KERN_INFO "aoe: aoenet_rcv: unknown cmd %d\n", h->cmd); 149 printk(KERN_INFO "aoe: unknown cmd %d\n", h->cmd);
151 } 150 }
152exit: 151exit:
153 dev_kfree_skb(skb); 152 dev_kfree_skb(skb);
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-17 12:38:09 -0500