[dpdk-dev] [PATCH v2 20/22] net/ena: disable dev_ops not supported in SMP
From: Michal Krawczyk <hidden>
Date: 2021-05-05 07:36:54
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Stanislaw Kardach <redacted> For dev_ops not supported in SMP, either return -EPERM or return without doing anything. In both cases log a warning. Signed-off-by: Stanislaw Kardach <redacted> Reviewed-by: Michal Krawczyk <redacted> Reviewed-by: Igor Chauskin <redacted> Reviewed-by: Shay Agroskin <redacted> --- drivers/net/ena/ena_ethdev.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 90ea40513a..73e99e956a 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c@@ -529,6 +529,12 @@ 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)
@@ -1052,6 +1058,12 @@ 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;
@@ -1098,6 +1110,12 @@ 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);
--
2.25.1