diff mbox series

[v5,3/3] net/ena: disable dev ops not supported by secondary process

Message ID 20210512101346.24803-4-mk@semihalf.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers
Series net/ena: update ENA PMD to v2.3.0 |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/iol-testing success Testing PASS
ci/iol-abi-testing success Testing PASS
ci/Intel-compilation success Compilation OK
ci/intel-Testing success Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-mellanox-Functional success Functional Testing PASS

Commit Message

Michal Krawczyk May 12, 2021, 10:13 a.m. UTC 
  From: Stanislaw Kardach <kda@semihalf.com>

For dev_ops not supported by the secondary process, either return -EPERM
or return without doing anything. In both cases log a warning.

It's still application's responsibility to avoid calls like that and
those changes are for debugging/informational purposes.

Signed-off-by: Stanislaw Kardach <kda@semihalf.com>
Reviewed-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Shay Agroskin <shayagr@amazon.com>
---
v5:
* Fix commit log.

v4:
* Fix commit heading style.

 drivers/net/ena/ena_ethdev.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index e310e7ae8c..dfe68279fa 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -535,6 +535,12 @@  ena_dev_reset(struct rte_eth_dev *dev)
 {
 	int rc = 0;
 
+	/* Cannot release memory in secondary process */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+		PMD_DRV_LOG(WARNING, "dev_reset not supported in secondary.\n");
+		return -EPERM;
+	}
+
 	ena_destroy_device(dev);
 	rc = eth_ena_dev_init(dev);
 	if (rc)
@@ -1059,6 +1065,12 @@  static int ena_start(struct rte_eth_dev *dev)
 	uint64_t ticks;
 	int rc = 0;
 
+	/* Cannot allocate memory in secondary process */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+		PMD_DRV_LOG(WARNING, "dev_start not supported in secondary.\n");
+		return -EPERM;
+	}
+
 	rc = ena_check_valid_conf(adapter);
 	if (rc)
 		return rc;
@@ -1105,6 +1117,12 @@  static int ena_stop(struct rte_eth_dev *dev)
 	struct ena_com_dev *ena_dev = &adapter->ena_dev;
 	int rc;
 
+	/* Cannot free memory in secondary process */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+		PMD_DRV_LOG(WARNING, "dev_stop not supported in secondary.\n");
+		return -EPERM;
+	}
+
 	rte_timer_stop_sync(&adapter->timer_wd);
 	ena_queue_stop_all(dev, ENA_RING_TYPE_TX);
 	ena_queue_stop_all(dev, ENA_RING_TYPE_RX);