Commit 85150929 authored by Aurelien Aptel's avatar Aurelien Aptel Committed by Steve French
Browse files

cifs: dump channel info in DebugData



* show server&TCP states for extra channels
* mention if an interface has a channel connected to it

In this version three of the patch, fixed minor printk format
issue pointed out by the kbuild robot.
Reported-by: default avatarkbuild test robot <lkp@intel.com>

Signed-off-by: default avatarAurelien Aptel <aaptel@suse.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 1ae9a5a5
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+34 −1
Original line number Diff line number Diff line
@@ -121,6 +121,27 @@ static void cifs_debug_tcon(struct seq_file *m, struct cifs_tcon *tcon)
	seq_putc(m, '\n');
}

static void
cifs_dump_channel(struct seq_file *m, int i, struct cifs_chan *chan)
{
	struct TCP_Server_Info *server = chan->server;

	seq_printf(m, "\t\tChannel %d Number of credits: %d Dialect 0x%x "
		   "TCP status: %d Instance: %d Local Users To Server: %d "
		   "SecMode: 0x%x Req On Wire: %d In Send: %d "
		   "In MaxReq Wait: %d\n",
		   i+1,
		   server->credits,
		   server->dialect,
		   server->tcpStatus,
		   server->reconnect_instance,
		   server->srv_count,
		   server->sec_mode,
		   in_flight(server),
		   atomic_read(&server->in_send),
		   atomic_read(&server->num_waiters));
}

static void
cifs_dump_iface(struct seq_file *m, struct cifs_server_iface *iface)
{
@@ -376,6 +397,13 @@ skip_rdma:
			if (ses->sign)
				seq_puts(m, " signed");

			if (ses->chan_count > 1) {
				seq_printf(m, "\n\n\tExtra Channels: %zu\n",
					   ses->chan_count-1);
				for (j = 1; j < ses->chan_count; j++)
					cifs_dump_channel(m, j, &ses->chans[j]);
			}

			seq_puts(m, "\n\tShares:");
			j = 0;

@@ -414,8 +442,13 @@ skip_rdma:
				seq_printf(m, "\n\tServer interfaces: %zu\n",
					   ses->iface_count);
			for (j = 0; j < ses->iface_count; j++) {
				struct cifs_server_iface *iface;

				iface = &ses->iface_list[j];
				seq_printf(m, "\t%d)", j);
				cifs_dump_iface(m, &ses->iface_list[j]);
				cifs_dump_iface(m, iface);
				if (is_ses_using_iface(ses, iface))
					seq_puts(m, "\t\t[CONNECTED]\n");
			}
			spin_unlock(&ses->iface_lock);
		}