From 2256c1c51e98d4eb2063a7f84f9ea783fda95f7f Mon Sep 17 00:00:00 2001 From: Ed Cashin Date: Wed, 11 Sep 2013 14:25:42 -0700 Subject: [PATCH] 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/aoe/aoeblk.c | 33 ++++++++++++++++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-) 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; -- 2.34.1