summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/aoe/aoe.h8
-rw-r--r--drivers/block/aoe/aoecmd.c65
-rw-r--r--drivers/block/aoe/aoedev.c30
3 files changed, 49 insertions, 54 deletions
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index d17b72763973..dab7258ddb26 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -91,7 +91,7 @@ enum {
NTARGETS = 8,
NAOEIFS = 8,
NSKBPOOLMAX = 256,
- NFACTIVE = 17,
+ NFACTIVE = 61,
TIMERTICK = HZ / 10,
MINTIMER = HZ >> 2,
@@ -132,14 +132,11 @@ struct aoetgt {
unsigned char addr[6];
ushort nframes;
struct aoedev *d; /* parent device I belong to */
- struct list_head factive[NFACTIVE]; /* hash of active frames */
struct list_head ffree; /* list of free frames */
struct aoeif ifs[NAOEIFS];
struct aoeif *ifp; /* current aoeif in use */
ushort nout;
ushort maxout;
- u16 lasttag; /* last tag sent */
- u16 useme;
ulong falloc;
ulong lastwadj; /* last window adjustment */
int minbcnt;
@@ -156,6 +153,8 @@ struct aoedev {
u16 rttavg; /* round trip average of requests/responses */
u16 mintimer;
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;
@@ -172,6 +171,7 @@ struct aoedev {
struct request *rq;
} ip;
ulong maxbcnt;
+ struct list_head factive[NFACTIVE]; /* hash of active frames */
struct aoetgt *targets[NTARGETS];
struct aoetgt **tgt; /* target in use when working */
struct aoetgt *htgt; /* target needing rexmit assistance */
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 2a6a4316db00..cc692fee7ce1 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -59,14 +59,14 @@ new_skb(ulong len)
}
static struct frame *
-getframe(struct aoetgt *t, u32 tag)
+getframe(struct aoedev *d, u32 tag)
{
struct frame *f;
struct list_head *head, *pos, *nx;
u32 n;
n = tag % NFACTIVE;
- head = &t->factive[n];
+ head = &d->factive[n];
list_for_each_safe(pos, nx, head) {
f = list_entry(pos, struct frame, head);
if (f->tag == tag) {
@@ -83,18 +83,18 @@ getframe(struct aoetgt *t, u32 tag)
* This driver reserves tag -1 to mean "unused frame."
*/
static int
-newtag(struct aoetgt *t)
+newtag(struct aoedev *d)
{
register ulong n;
n = jiffies & 0xffff;
- return n |= (++t->lasttag & 0x7fff) << 16;
+ return n |= (++d->lasttag & 0x7fff) << 16;
}
static u32
aoehdr_atainit(struct aoedev *d, struct aoetgt *t, struct aoe_hdr *h)
{
- u32 host_tag = newtag(t);
+ u32 host_tag = newtag(d);
memcpy(h->src, t->ifp->nd->dev_addr, sizeof h->src);
memcpy(h->dst, t->addr, sizeof h->dst);
@@ -270,11 +270,11 @@ loop:
static void
fhash(struct frame *f)
{
- struct aoetgt *t = f->t;
+ struct aoedev *d = f->t->d;
u32 n;
n = f->tag % NFACTIVE;
- list_add_tail(&f->head, &t->factive[n]);
+ list_add_tail(&f->head, &d->factive[n]);
}
static int
@@ -433,7 +433,7 @@ resend(struct aoedev *d, struct frame *f)
u32 n;
t = f->t;
- n = newtag(t);
+ n = newtag(d);
skb = f->skb;
if (ifrotate(t) == NULL) {
/* probably can't happen, but set it up to fail anyway */
@@ -512,9 +512,12 @@ sthtith(struct aoedev *d)
int i;
for (i = 0; i < NFACTIVE; i++) {
- head = &ht->factive[i];
+ head = &d->factive[i];
list_for_each_safe(pos, nx, head) {
f = list_entry(pos, struct frame, head);
+ if (f->t != ht)
+ continue;
+
nf = newframe(d);
if (!nf)
return 0;
@@ -585,22 +588,20 @@ rexmit_timer(ulong vp)
}
/* collect all frames to rexmit into flist */
- tt = d->targets;
- te = tt + NTARGETS;
- for (; tt < te && *tt; tt++) {
- t = *tt;
- for (i = 0; i < NFACTIVE; i++) {
- head = &t->factive[i];
- list_for_each_safe(pos, nx, head) {
- f = list_entry(pos, struct frame, head);
- if (tsince(f->tag) < timeout)
- continue;
- /* move to flist for later processing */
- list_move_tail(pos, &flist);
- }
+ for (i = 0; i < NFACTIVE; i++) {
+ head = &d->factive[i];
+ list_for_each_safe(pos, nx, head) {
+ f = list_entry(pos, struct frame, head);
+ if (tsince(f->tag) < timeout)
+ break; /* end of expired frames */
+ /* move to flist for later processing */
+ list_move_tail(pos, &flist);
}
-
- /* window check */
+ }
+ /* window check */
+ tt = d->targets;
+ te = tt + d->ntargets;
+ for (; tt < te && (t = *tt); tt++) {
if (t->nout == t->maxout
&& t->maxout < t->nframes
&& (jiffies - t->lastwadj)/HZ > 10) {
@@ -626,7 +627,7 @@ rexmit_timer(ulong vp)
* Hang all frames on first hash bucket for downdev
* to clean up.
*/
- list_splice(&flist, &f->t->factive[0]);
+ list_splice(&flist, &d->factive[0]);
aoedev_downdev(d);
break;
}
@@ -1162,15 +1163,7 @@ aoecmd_ata_rsp(struct sk_buff *skb)
spin_lock_irqsave(&d->lock, flags);
n = be32_to_cpu(get_unaligned(&h->tag));
- t = gettgt(d, h->src);
- if (t == NULL) {
- printk(KERN_INFO "aoe: can't find target e%ld.%d:%pm\n",
- d->aoemajor, d->aoeminor, h->src);
- spin_unlock_irqrestore(&d->lock, flags);
- aoedev_put(d);
- return skb;
- }
- f = getframe(t, n);
+ f = getframe(d, n);
if (f == NULL) {
calc_rttavg(d, -tsince(n));
spin_unlock_irqrestore(&d->lock, flags);
@@ -1185,6 +1178,7 @@ aoecmd_ata_rsp(struct sk_buff *skb)
aoechr_error(ebuf);
return skb;
}
+ t = f->t;
calc_rttavg(d, tsince(f->tag));
t->nout--;
aoecmd_work(d);
@@ -1253,7 +1247,6 @@ static struct aoetgt *
addtgt(struct aoedev *d, char *addr, ulong nframes)
{
struct aoetgt *t, **tt, **te;
- int i;
tt = d->targets;
te = tt + NTARGETS;
@@ -1278,8 +1271,6 @@ addtgt(struct aoedev *d, char *addr, ulong nframes)
t->ifp = t->ifs;
t->maxout = t->nframes;
INIT_LIST_HEAD(&t->ffree);
- for (i = 0; i < NFACTIVE; ++i)
- INIT_LIST_HEAD(&t->factive[i]);
return *tt = t;
}
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index 635dc986cf77..3968fe6c0077 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -103,22 +103,23 @@ aoedev_downdev(struct aoedev *d)
d->flags &= ~DEVFL_UP;
- /* clean out active buffers on all targets */
+ /* clean out active buffers */
+ for (i = 0; i < NFACTIVE; i++) {
+ head = &d->factive[i];
+ list_for_each_safe(pos, nx, head) {
+ f = list_entry(pos, struct frame, head);
+ list_del(pos);
+ if (f->buf) {
+ f->buf->nframesout--;
+ aoe_failbuf(d, f->buf);
+ }
+ aoe_freetframe(f);
+ }
+ }
+ /* reset window dressings */
tt = d->targets;
te = tt + NTARGETS;
for (; tt < te && (t = *tt); tt++) {
- for (i = 0; i < NFACTIVE; i++) {
- head = &t->factive[i];
- list_for_each_safe(pos, nx, head) {
- list_del(pos);
- f = list_entry(pos, struct frame, head);
- if (f->buf) {
- f->buf->nframesout--;
- aoe_failbuf(d, f->buf);
- }
- aoe_freetframe(f);
- }
- }
t->maxout = t->nframes;
t->nout = 0;
}
@@ -250,6 +251,7 @@ struct aoedev *
aoedev_by_sysminor_m(ulong sysminor)
{
struct aoedev *d;
+ int i;
ulong flags;
spin_lock_irqsave(&devlist_lock, flags);
@@ -275,6 +277,8 @@ aoedev_by_sysminor_m(ulong sysminor)
d->bufpool = NULL; /* defer to aoeblk_gdalloc */
d->tgt = d->targets;
d->ref = 1;
+ for (i = 0; i < NFACTIVE; i++)
+ INIT_LIST_HEAD(&d->factive[i]);
d->sysminor = sysminor;
d->aoemajor = AOEMAJOR(sysminor);
d->aoeminor = AOEMINOR(sysminor);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 22:37:23 +0000