patch 'net/bonding: fix slaves initializing on MTU setting' has been queued to stable release 21.11.1

[Kevin Traynor <ktraynor@redhat.com>]

Hi,

FYI, your patch has been queued to stable release 21.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 03/06/22. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/387187932f2b578f1a714ce06d099358a72b54b2

Thanks.

Kevin

---
From 387187932f2b578f1a714ce06d099358a72b54b2 Mon Sep 17 00:00:00 2001
From: Junjie Wan <wanjunjie@bytedance.com>
Date: Tue, 15 Feb 2022 18:59:40 +0800
Subject: [PATCH] net/bonding: fix slaves initializing on MTU setting

[ upstream commit b3eaaf1d08ec70646bdd69416253dfb355480492 ]

If a initial process for the bonding device is like:
rte_eth_dev_configure
rte_eth_dev_set_mtu
queue setup and start, etc.

Pass the vdev args to application, and init bonding device only.
-a 0000:af:00.0 --vdev="net_bonding0,mode=2,slave=0000:af:00.0"

It will fail and complain for the slave device
"Port 0 must be configured before MTU set"

Test can be reproduced with ovs.

Fixes: b26bee10ee37 ("ethdev: forbid MTU set before device configure")

Signed-off-by: Junjie Wan <wanjunjie@bytedance.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Min Hu (Connor) <humin29@huawei.com>
---
 app/test/test_link_bonding.c           |  4 +++
 app/test/test_link_bonding_rssconf.c   |  4 +++
 drivers/net/bonding/eth_bond_private.h |  4 +++
 drivers/net/bonding/rte_eth_bond_api.c |  6 ++++
 drivers/net/bonding/rte_eth_bond_pmd.c | 43 ++++++++++++++++++++++----
 5 files changed, 55 insertions(+), 6 deletions(-)

diff --git a/app/test/test_link_bonding.c b/app/test/test_link_bonding.c
index dc6fc46b9c..12c50ef393 100644
--- a/app/test/test_link_bonding.c
+++ b/app/test/test_link_bonding.c
@@ -182,4 +182,8 @@ configure_ethdev(uint16_t port_id, uint8_t start, uint8_t en_isr)
 			"rte_eth_dev_configure for port %d failed", port_id);
 
+	int ret = rte_eth_dev_set_mtu(port_id, 1550);
+	RTE_TEST_ASSERT(ret == 0 || ret == -ENOTSUP,
+			"rte_eth_dev_set_mtu for port %d failed", port_id);
+
 	for (q_id = 0; q_id < test_params->nb_rx_q; q_id++)
 		TEST_ASSERT_SUCCESS(rte_eth_rx_queue_setup(port_id, q_id, RX_RING_SIZE,
diff --git a/app/test/test_link_bonding_rssconf.c b/app/test/test_link_bonding_rssconf.c
index f9eae93973..7228965ced 100644
--- a/app/test/test_link_bonding_rssconf.c
+++ b/app/test/test_link_bonding_rssconf.c
@@ -129,4 +129,8 @@ configure_ethdev(uint16_t port_id, struct rte_eth_conf *eth_conf,
 			port_id);
 
+	int ret = rte_eth_dev_set_mtu(port_id, 1550);
+	RTE_TEST_ASSERT(ret == 0 || ret == -ENOTSUP,
+			"rte_eth_dev_set_mtu for port %d failed", port_id);
+
 	for (rxq = 0; rxq < RXTX_QUEUE_COUNT; rxq++) {
 		TEST_ASSERT(rte_eth_rx_queue_setup(port_id, rxq, RXTX_RING_SIZE,
diff --git a/drivers/net/bonding/eth_bond_private.h b/drivers/net/bonding/eth_bond_private.h
index 156335c425..8222e3cd38 100644
--- a/drivers/net/bonding/eth_bond_private.h
+++ b/drivers/net/bonding/eth_bond_private.h
@@ -247,4 +247,8 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
 		struct rte_eth_dev *slave_eth_dev);
 
+int
+slave_start(struct rte_eth_dev *bonded_eth_dev,
+		struct rte_eth_dev *slave_eth_dev);
+
 void
 slave_remove(struct bond_dev_private *internals,
diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c
index 8840d9e17b..919c580fb8 100644
--- a/drivers/net/bonding/rte_eth_bond_api.c
+++ b/drivers/net/bonding/rte_eth_bond_api.c
@@ -567,4 +567,10 @@ __eth_bond_slave_add_lock_free(uint16_t bonded_port_id, uint16_t slave_port_id)
 			return -1;
 		}
+		if (slave_start(bonded_eth_dev, slave_eth_dev) != 0) {
+			internals->slave_count--;
+			RTE_BOND_LOG(ERR, "rte_bond_slaves_start: port=%d",
+					slave_port_id);
+			return -1;
+		}
 	}
 
diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index bfa931098e..58dad0a0e3 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -1679,12 +1679,8 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
 		struct rte_eth_dev *slave_eth_dev)
 {
-	struct bond_rx_queue *bd_rx_q;
-	struct bond_tx_queue *bd_tx_q;
 	uint16_t nb_rx_queues;
 	uint16_t nb_tx_queues;
 
 	int errval;
-	uint16_t q_id;
-	struct rte_flow_error flow_error;
 
 	struct bond_dev_private *internals = bonded_eth_dev->data->dev_private;
@@ -1759,4 +1755,17 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
 		return errval;
 	}
+	return 0;
+}
+
+int
+slave_start(struct rte_eth_dev *bonded_eth_dev,
+		struct rte_eth_dev *slave_eth_dev)
+{
+	int errval = 0;
+	struct bond_rx_queue *bd_rx_q;
+	struct bond_tx_queue *bd_tx_q;
+	uint16_t q_id;
+	struct rte_flow_error flow_error;
+	struct bond_dev_private *internals = bonded_eth_dev->data->dev_private;
 
 	/* Setup Rx Queues */
@@ -1807,8 +1816,11 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
 		}
 
-		if (internals->mode4.dedicated_queues.flow[slave_eth_dev->data->port_id] != NULL)
-			rte_flow_destroy(slave_eth_dev->data->port_id,
+		if (internals->mode4.dedicated_queues.flow[slave_eth_dev->data->port_id] != NULL) {
+			errval = rte_flow_destroy(slave_eth_dev->data->port_id,
 					internals->mode4.dedicated_queues.flow[slave_eth_dev->data->port_id],
 					&flow_error);
+			RTE_BOND_LOG(ERR, "bond_ethdev_8023ad_flow_destroy: port=%d, err (%d)",
+				slave_eth_dev->data->port_id, errval);
+		}
 
 		errval = bond_ethdev_8023ad_flow_set(bonded_eth_dev,
@@ -2002,4 +2014,11 @@ bond_ethdev_start(struct rte_eth_dev *eth_dev)
 			goto out_err;
 		}
+		if (slave_start(eth_dev, slave_ethdev) != 0) {
+			RTE_BOND_LOG(ERR,
+				"bonded port (%d) failed to start slave device (%d)",
+				eth_dev->data->port_id,
+				internals->slaves[i].port_id);
+			goto out_err;
+		}
 		/* We will need to poll for link status if any slave doesn't
 		 * support interrupts
@@ -3848,4 +3867,16 @@ bond_ethdev_configure(struct rte_eth_dev *dev)
 	}
 
+	/* configure slaves so we can pass mtu setting */
+	for (i = 0; i < internals->slave_count; i++) {
+		struct rte_eth_dev *slave_ethdev =
+				&(rte_eth_devices[internals->slaves[i].port_id]);
+		if (slave_configure(dev, slave_ethdev) != 0) {
+			RTE_BOND_LOG(ERR,
+				"bonded port (%d) failed to configure slave device (%d)",
+				dev->data->port_id,
+				internals->slaves[i].port_id);
+			return -1;
+		}
+	}
 	return 0;
 }
-- 
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-03-01 10:41:02.474376869 +0000
+++ 0043-net-bonding-fix-slaves-initializing-on-MTU-setting.patch	2022-03-01 10:41:01.320244101 +0000
@@ -1 +1 @@
-From b3eaaf1d08ec70646bdd69416253dfb355480492 Mon Sep 17 00:00:00 2001
+From 387187932f2b578f1a714ce06d099358a72b54b2 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit b3eaaf1d08ec70646bdd69416253dfb355480492 ]
+
@@ -20 +21,0 @@
-Cc: stable@dpdk.org
@@ -34 +35 @@
-index 82a9b8e01a..194ed5a7ec 100644
+index dc6fc46b9c..12c50ef393 100644
@@ -73 +74 @@
-index b78867b125..4ac191c468 100644
+index 8840d9e17b..919c580fb8 100644
@@ -88 +89 @@
-index 846a131916..b305b6a35b 100644
+index bfa931098e..58dad0a0e3 100644
@@ -148 +149 @@
-@@ -3849,4 +3868,16 @@ bond_ethdev_configure(struct rte_eth_dev *dev)
+@@ -3848,4 +3867,16 @@ bond_ethdev_configure(struct rte_eth_dev *dev)