[dpdk-dev] [PATCH] net/qede: support IOVA VA mode

[Shahed Shaikh]

> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Kevin Traynor
> Sent: Friday, March 8, 2019 12:09 AM
> To: Rasesh Mody <rmody at marvell.com>; dev at dpdk.org
> Cc: Kevin Traynor <ktraynor at redhat.com>; stable at dpdk.org
> Subject: [dpdk-dev] [PATCH] net/qede: support IOVA VA mode
> 
> Set RTE_PCI_DRV_IOVA_AS_VA in drv_flags. This allows initializing qede PMD as
> non-root also on Linux v4.x, where /proc/self/pagemap can't be acccessed
> without CAP_SYS_ADMIN privileges.
> 
> The flag was introduced generically but not in pmds in commit:
> 815c7deaed2d ("pci: get IOMMU class on Linux")
> 
> Cc: stable at dpdk.org
> 
> Signed-off-by: Kevin Traynor <ktraynor at redhat.com>

Acked-by: Shahed Shaikh <shshaikh at marvell.com>

Thanks,
Shahed
> ---
> 
>  drivers/net/qede/qede_ethdev.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
> index 518673dce..6b330c2b2 100644
> --- a/drivers/net/qede/qede_ethdev.c
> +++ b/drivers/net/qede/qede_ethdev.c
> @@ -2736,5 +2736,6 @@ static int qedevf_eth_dev_pci_remove(struct
> rte_pci_device *pci_dev)  static struct rte_pci_driver rte_qedevf_pmd = {
>  	.id_table = pci_id_qedevf_map,
> -	.drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
> +	.drv_flags = RTE_PCI_DRV_NEED_MAPPING |RTE_PCI_DRV_INTR_LSC |
> +		     RTE_PCI_DRV_IOVA_AS_VA,
>  	.probe = qedevf_eth_dev_pci_probe,
>  	.remove = qedevf_eth_dev_pci_remove,
> @@ -2755,5 +2756,6 @@ static int qede_eth_dev_pci_remove(struct
> rte_pci_device *pci_dev)  static struct rte_pci_driver rte_qede_pmd = {
>  	.id_table = pci_id_qede_map,
> -	.drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
> +	.drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC
> |
> +		     RTE_PCI_DRV_IOVA_AS_VA,
>  	.probe = qede_eth_dev_pci_probe,
>  	.remove = qede_eth_dev_pci_remove,
> --
> 2.20.1