From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: linux-usb@vger.kernel.org
Cc: Michael Jamet <michael.jamet@intel.com>,
Yehezkel Bernat <YehezkelShB@gmail.com>,
Andreas Noever <andreas.noever@gmail.com>,
Isaac Hazan <isaac.hazan@intel.com>,
Lukas Wunner <lukas@wunner.de>,
"David S . Miller" <davem@davemloft.net>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
netdev@vger.kernel.org
Subject: [PATCH 03/10] thunderbolt: Create XDomain devices for loops back to the host
Date: Wed, 4 Nov 2020 17:00:23 +0300 [thread overview]
Message-ID: <20201104140030.6853-4-mika.westerberg@linux.intel.com> (raw)
In-Reply-To: <20201104140030.6853-1-mika.westerberg@linux.intel.com>
It is perfectly possible to have loops back from the routers to the
host, or even from one host port to another. Instead of ignoring these,
we create XDomain devices for each. This allows creating services such
as DMA traffic test that is used in manufacturing for example.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
drivers/thunderbolt/xdomain.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c
index e2866248f389..7c61d2aeaac9 100644
--- a/drivers/thunderbolt/xdomain.c
+++ b/drivers/thunderbolt/xdomain.c
@@ -960,10 +960,8 @@ static void tb_xdomain_get_uuid(struct work_struct *work)
return;
}
- if (uuid_equal(&uuid, xd->local_uuid)) {
+ if (uuid_equal(&uuid, xd->local_uuid))
dev_dbg(&xd->dev, "intra-domain loop detected\n");
- return;
- }
/*
* If the UUID is different, there is another domain connected
--
2.28.0
next prev parent reply other threads:[~2020-11-04 14:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-04 14:00 [PATCH 00/10] thunderbolt: Add DMA traffic test driver Mika Westerberg
2020-11-04 14:00 ` [PATCH 01/10] thunderbolt: Do not clear USB4 router protocol adapter IFC and ISE bits Mika Westerberg
2020-11-04 14:00 ` [PATCH 02/10] thunderbolt: Find XDomain by route instead of UUID Mika Westerberg
2020-11-04 14:00 ` Mika Westerberg [this message]
2020-11-04 14:00 ` [PATCH 04/10] thunderbolt: Add link_speed and link_width to XDomain Mika Westerberg
2020-11-04 14:00 ` [PATCH 05/10] thunderbolt: Add functions for enabling and disabling lane bonding on XDomain Mika Westerberg
2020-11-04 14:00 ` [PATCH 06/10] thunderbolt: Create debugfs directory automatically for services Mika Westerberg
2020-11-04 14:20 ` Greg KH
2020-11-04 14:58 ` Mika Westerberg
2020-11-04 14:00 ` [PATCH 07/10] thunderbolt: Make it possible to allocate one directional DMA tunnel Mika Westerberg
2020-11-04 14:00 ` [PATCH 08/10] thunderbolt: Add support for end-to-end flow control Mika Westerberg
2020-11-04 14:00 ` [PATCH 09/10] thunderbolt: Add DMA traffic test driver Mika Westerberg
2020-11-04 18:38 ` Yehezkel Bernat
2020-11-05 7:16 ` Mika Westerberg
2020-11-04 14:00 ` [PATCH 10/10] MAINTAINERS: Add Isaac as maintainer of Thunderbolt " Mika Westerberg
2020-11-04 18:39 ` [PATCH 00/10] thunderbolt: Add " Yehezkel Bernat
2020-11-05 7:17 ` Mika Westerberg
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