From: Thomas Monjalon <thomas@monjalon.net>
To: ferruh.yigit@intel.com, arybchenko@solarflare.com
Cc: dev@dpdk.org, ophirmu@mellanox.com
Subject: [dpdk-dev] [PATCH v2] ethdev: complete closing of port
Date: Wed, 10 Oct 2018 00:17:32 +0200 [thread overview]
Message-ID: <20181009221732.17377-1-thomas@monjalon.net> (raw)
In-Reply-To: <20180907233929.21950-1-thomas@monjalon.net>
After closing a port, it cannot be restarted.
So there is no reason to not free all associated resources.
The last step was done with rte_eth_dev_detach() which is deprecated.
Instead of blindly removing the associated rte_device, the driver should
check if no more port (ethdev, cryptodev, etc) is open for the device.
The last ethdev freeing (dev_private and final release), which were done
by rte_eth_dev_detach(), are now done at the end of rte_eth_dev_close().
If the driver is trying to free the port again, the function
rte_eth_dev_release_port() will abort with -ENODEV error.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
lib/librte_ethdev/rte_ethdev.c | 6 ++++++
lib/librte_ethdev/rte_ethdev.h | 3 +--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index ed83e5954..3062dc711 100644
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -506,6 +506,8 @@ rte_eth_dev_release_port(struct rte_eth_dev *eth_dev)
{
if (eth_dev == NULL)
return -EINVAL;
+ if (eth_dev->state == RTE_ETH_DEV_UNUSED)
+ return -ENODEV;
rte_eth_dev_shared_data_prepare();
@@ -1441,6 +1443,10 @@ rte_eth_dev_close(uint16_t port_id)
dev->data->nb_tx_queues = 0;
rte_free(dev->data->tx_queues);
dev->data->tx_queues = NULL;
+
+ rte_free(dev->data->dev_private);
+
+ rte_eth_dev_release_port(dev);
}
int
diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
index a8942ff88..378c01afa 100644
--- a/lib/librte_ethdev/rte_ethdev.h
+++ b/lib/librte_ethdev/rte_ethdev.h
@@ -1846,8 +1846,7 @@ int rte_eth_dev_set_link_down(uint16_t port_id);
/**
* Close a stopped Ethernet device. The device cannot be restarted!
- * The function frees all resources except for needed by the
- * closed state.
+ * The function frees all port resources.
*
* @param port_id
* The port identifier of the Ethernet device.
--
2.19.0
next prev parent reply other threads:[~2018-10-09 22:17 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-07 23:39 [dpdk-dev] [RFC] ethdev: complete closing to free all resources Thomas Monjalon
2018-09-10 8:03 ` Andrew Rybchenko
2018-09-10 8:42 ` Thomas Monjalon
2018-09-10 8:54 ` Andrew Rybchenko
2018-09-12 14:57 ` Thomas Monjalon
2018-09-12 15:44 ` Andrew Rybchenko
2018-09-28 12:46 ` Ferruh Yigit
2018-10-09 22:00 ` Thomas Monjalon
2018-10-09 22:17 ` Thomas Monjalon [this message]
2018-10-10 6:15 ` [dpdk-dev] [PATCH v2] ethdev: complete closing of port Andrew Rybchenko
2018-10-10 7:44 ` Thomas Monjalon
2018-10-10 7:50 ` Andrew Rybchenko
2018-10-10 8:39 ` Thomas Monjalon
2018-10-10 15:01 ` Andrew Rybchenko
2018-10-10 16:43 ` Thomas Monjalon
2018-10-10 18:01 ` Andrew Rybchenko
2018-10-10 19:03 ` Thomas Monjalon
2018-10-14 23:20 ` [dpdk-dev] [PATCH v3 0/2] ethdev port freeing Thomas Monjalon
2018-10-14 23:20 ` [dpdk-dev] [PATCH v3 1/2] ethdev: free all common data when releasing port Thomas Monjalon
2018-10-16 11:16 ` Andrew Rybchenko
2018-10-16 12:22 ` Thomas Monjalon
2018-10-16 12:47 ` Andrew Rybchenko
2018-10-16 12:52 ` Thomas Monjalon
2018-10-16 12:55 ` Andrew Rybchenko
2018-10-14 23:20 ` [dpdk-dev] [PATCH v3 2/2] ethdev: complete closing of port Thomas Monjalon
2018-10-16 11:24 ` Andrew Rybchenko
2018-10-16 12:25 ` Thomas Monjalon
2018-10-17 1:54 ` [dpdk-dev] [PATCH v3 0/4] ethdev port freeing Thomas Monjalon
2018-10-17 1:54 ` [dpdk-dev] [PATCH v3 1/4] app/testpmd: allow detaching a port not closed Thomas Monjalon
2018-10-17 2:06 ` Thomas Monjalon
2018-10-17 6:26 ` Andrew Rybchenko
2018-10-17 8:20 ` Thomas Monjalon
2018-10-17 10:30 ` Iremonger, Bernard
2018-10-17 11:33 ` Thomas Monjalon
2018-10-17 1:54 ` [dpdk-dev] [PATCH v3 2/4] ethdev: free all common data when releasing port Thomas Monjalon
2018-10-17 7:13 ` Andrew Rybchenko
2018-10-17 8:22 ` Thomas Monjalon
2018-10-17 1:54 ` [dpdk-dev] [PATCH v3 3/4] ethdev: remove release function for secondary process Thomas Monjalon
2018-10-17 7:25 ` Andrew Rybchenko
2018-10-17 9:27 ` Thomas Monjalon
2018-10-17 1:54 ` [dpdk-dev] [PATCH v3 4/4] ethdev: complete closing of port Thomas Monjalon
2018-10-17 2:12 ` Thomas Monjalon
2018-10-17 10:24 ` [dpdk-dev] [PATCH v3 0/4] ethdev port freeing Shreyansh Jain
2018-10-17 11:31 ` Thomas Monjalon
2018-10-18 1:23 ` [dpdk-dev] [PATCH v5 0/6] " Thomas Monjalon
2018-10-18 1:23 ` [dpdk-dev] [PATCH v5 1/6] app/testpmd: fix ports list after removing several at once Thomas Monjalon
2018-10-18 10:40 ` Iremonger, Bernard
2018-10-18 11:29 ` Thomas Monjalon
2018-10-18 11:41 ` Iremonger, Bernard
2018-10-18 14:21 ` Thomas Monjalon
2018-10-18 16:42 ` Iremonger, Bernard
2018-10-18 17:06 ` Thomas Monjalon
2018-10-18 11:49 ` Wisam Monther
2018-10-18 13:22 ` Iremonger, Bernard
2018-10-18 1:23 ` [dpdk-dev] [PATCH v5 2/6] app/testpmd: allow detaching a port not closed Thomas Monjalon
2018-10-18 7:45 ` Andrew Rybchenko
2018-10-18 10:51 ` Iremonger, Bernard
2018-10-18 11:24 ` Thomas Monjalon
2018-10-18 1:23 ` [dpdk-dev] [PATCH v5 3/6] ethdev: fix doxygen comments of shared data fields Thomas Monjalon
2018-10-18 7:11 ` Andrew Rybchenko
2018-10-18 1:24 ` [dpdk-dev] [PATCH v5 4/6] ethdev: free all common data when releasing port Thomas Monjalon
2018-10-18 7:13 ` Andrew Rybchenko
2018-10-18 1:24 ` [dpdk-dev] [PATCH v5 5/6] ethdev: remove release function for secondary process Thomas Monjalon
2018-10-18 7:15 ` Andrew Rybchenko
2018-10-18 1:24 ` [dpdk-dev] [PATCH v5 6/6] ethdev: complete closing of port Thomas Monjalon
2018-10-18 8:33 ` Andrew Rybchenko
2018-10-18 9:32 ` Thomas Monjalon
2018-10-19 2:07 ` [dpdk-dev] [PATCH v6 0/6] ethdev port freeing Thomas Monjalon
2018-10-19 2:07 ` [dpdk-dev] [PATCH v6 1/6] app/testpmd: update port list for multiple removals Thomas Monjalon
2018-10-19 14:32 ` Iremonger, Bernard
2018-10-19 2:07 ` [dpdk-dev] [PATCH v6 2/6] app/testpmd: allow detaching a port not closed Thomas Monjalon
2018-10-19 14:32 ` Iremonger, Bernard
2018-10-19 2:07 ` [dpdk-dev] [PATCH v6 3/6] ethdev: fix doxygen comments of shared data fields Thomas Monjalon
2018-10-19 2:07 ` [dpdk-dev] [PATCH v6 4/6] ethdev: free all common data when releasing port Thomas Monjalon
2018-10-19 2:07 ` [dpdk-dev] [PATCH v6 5/6] ethdev: remove release function for secondary process Thomas Monjalon
2018-10-19 2:07 ` [dpdk-dev] [PATCH v6 6/6] ethdev: complete closing of port Thomas Monjalon
2018-10-19 10:13 ` Andrew Rybchenko
2018-10-22 15:43 ` [dpdk-dev] [PATCH v6 0/6] ethdev port freeing Ferruh Yigit
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181009221732.17377-1-thomas@monjalon.net \
--to=thomas@monjalon.net \
--cc=arybchenko@solarflare.com \
--cc=dev@dpdk.org \
--cc=ferruh.yigit@intel.com \
--cc=ophirmu@mellanox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).