[dpdk-dev] [PATCH] net/thunderx: fix nicvf cleanup on detaching PCI dev
Jerin Jacob Kollanukkaran
jerinj at marvell.com
Mon Aug 5 19:05:52 CEST 2019
> -----Original Message-----
> From: agupta3 at marvell.com <agupta3 at marvell.com>
> Sent: Monday, August 5, 2019 1:31 PM
> To: Jerin Jacob Kollanukkaran <jerinj at marvell.com>; Maciej Czekaj
> <mczekaj at marvell.com>; Anatoly Burakov <anatoly.burakov at intel.com>
> Cc: dev at dpdk.org; stable at dpdk.org; Amit Gupta <agupta3 at marvell.com>
> Subject: [PATCH] net/thunderx: fix nicvf cleanup on detaching PCI dev
>
> From: Amit Gupta <agupta3 at marvell.com>
>
> There was a bug while doing PCI detach because of that app gets seg fault as
> eth_dev is released without stopping/cleaning up mapped nicvf.
>
> Fixed this bug by adding nicvf cleanup stupport on PCI detach.
>
> Fixes: fdf91e0f2fac ("drivers/net: do not use ethdev driver")
> Signed-off-by: Amit Gupta <agupta3 at marvell.com>
Cc: stable at dpdk.org
Acked-by: Jerin Jacob <jerinj at marvell.com>
Fixed check-git-log.sh issues and applied to dpdk-next-net-mrvl/master. Thanks
> ---
> drivers/net/thunderx/nicvf_ethdev.c | 12 +++++++++++-
> 1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/thunderx/nicvf_ethdev.c
> b/drivers/net/thunderx/nicvf_ethdev.c
> index ec57692..56769ef 100644
> --- a/drivers/net/thunderx/nicvf_ethdev.c
> +++ b/drivers/net/thunderx/nicvf_ethdev.c
> @@ -2083,6 +2083,16 @@ static void nicvf_vf_stop(struct rte_eth_dev *dev,
> struct nicvf *nic,
> return ret;
> }
> static int
> +nicvf_eth_dev_uninit(struct rte_eth_dev *dev) {
> + PMD_INIT_FUNC_TRACE();
> +
> + if (rte_eal_process_type() == RTE_PROC_PRIMARY)
> + nicvf_dev_close(dev);
> +
> + return 0;
> +}
> +static int
> nicvf_eth_dev_init(struct rte_eth_dev *eth_dev) {
> int ret;
> @@ -2256,7 +2266,7 @@ static int nicvf_eth_pci_probe(struct rte_pci_driver
> *pci_drv __rte_unused,
>
> static int nicvf_eth_pci_remove(struct rte_pci_device *pci_dev) {
> - return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
> + return rte_eth_dev_pci_generic_remove(pci_dev,
> nicvf_eth_dev_uninit);
> }
>
> static struct rte_pci_driver rte_nicvf_pmd = {
> --
> 1.8.3.1
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