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authorEd Cashin <ecashin@coraid.com>2013-09-12 01:25:42 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-12 02:59:25 +0400
commit2256c1c51e98d4eb2063a7f84f9ea783fda95f7f (patch)
treea48329d95fc14306d59dc1b4e4ae5a7569fa46de /drivers/block/aoe
parent1cf94797c2bbc514c2bd0892e1774a0a8ca9afdb (diff)
downloadlinux-2256c1c51e98d4eb2063a7f84f9ea783fda95f7f.tar.xz
aoe: fill in per-AoE-target information for debugfs file
This information is presented in a compact format that has evolved for easy routine scanning by expert humans, mostly developers and support technicians helping to troubleshoot or test AoE-based systems. Signed-off-by: Ed Cashin <ecashin@coraid.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/block/aoe')
-rw-r--r--drivers/block/aoe/aoeblk.c33
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 0511d38e412d..b58cbeb43e05 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -113,11 +113,42 @@ static ssize_t aoedisk_show_payload(struct device *dev,
static int aoedisk_debugfs_show(struct seq_file *s, void *ignored)
{
struct aoedev *d;
+ struct aoetgt **t, **te;
+ struct aoeif *ifp, *ife;
unsigned long flags;
+ char c;
d = s->private;
+ seq_printf(s, "rttavg: %d rttdev: %d\n",
+ d->rttavg >> RTTSCALE,
+ d->rttdev >> RTTDSCALE);
+ seq_printf(s, "nskbpool: %d\n", skb_queue_len(&d->skbpool));
+ seq_printf(s, "kicked: %ld\n", d->kicked);
+ seq_printf(s, "maxbcnt: %ld\n", d->maxbcnt);
+ seq_printf(s, "ref: %ld\n", d->ref);
+
spin_lock_irqsave(&d->lock, flags);
- seq_printf(s, "%s\n", d->gd->disk_name); /* place holder */
+ t = d->targets;
+ te = t + d->ntargets;
+ for (; t < te && *t; t++) {
+ c = '\t';
+ seq_printf(s, "falloc: %ld\n", (*t)->falloc);
+ seq_printf(s, "ffree: %p\n",
+ list_empty(&(*t)->ffree) ? NULL : (*t)->ffree.next);
+ seq_printf(s, "%pm:%d:%d:%d\n", (*t)->addr, (*t)->nout,
+ (*t)->maxout, (*t)->nframes);
+ seq_printf(s, "\tssthresh:%d\n", (*t)->ssthresh);
+ seq_printf(s, "\ttaint:%d\n", (*t)->taint);
+ seq_printf(s, "\tr:%d\n", (*t)->rpkts);
+ seq_printf(s, "\tw:%d\n", (*t)->wpkts);
+ ifp = (*t)->ifs;
+ ife = ifp + ARRAY_SIZE((*t)->ifs);
+ for (; ifp->nd && ifp < ife; ifp++) {
+ seq_printf(s, "%c%s", c, ifp->nd->name);
+ c = ',';
+ }
+ seq_puts(s, "\n");
+ }
spin_unlock_irqrestore(&d->lock, flags);
return 0;