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

Rasesh Mody rmody at marvell.com
Thu Mar 7 22:09:40 CET 2019


>From: Kevin Traynor <ktraynor at redhat.com>
>Sent: Thursday, March 07, 2019 10:39 AM
>
>----------------------------------------------------------------------
>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: Rasesh Mody <rmody at marvell.com>
>
> 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



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