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* [dpdk-stable] [PATCH] net/mlx: support IOVA VA mode
@ 2019-05-02  1:44 Yongseok Koh
  2019-05-02  7:31 ` Yongseok Koh
                   ` (2 more replies)
  0 siblings, 3 replies; 9+ messages in thread
From: Yongseok Koh @ 2019-05-02  1:44 UTC (permalink / raw)
  To: shahafs; +Cc: dev, stable, Davide Caratti

Set RTE_PCI_DRV_IOVA_AS_VA to driver's drv_flags as device's IOMMU takes
virtual address.

Cc: stable@dpdk.org
Cc: Davide Caratti <dcaratti@redhat.com>

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
---
 drivers/net/mlx4/mlx4.c | 4 ++--
 drivers/net/mlx5/mlx5.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index fe559c0407..eccb77b410 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -1133,8 +1133,8 @@ static struct rte_pci_driver mlx4_driver = {
 	},
 	.id_table = mlx4_pci_id_map,
 	.probe = mlx4_pci_probe,
-	.drv_flags = RTE_PCI_DRV_INTR_LSC |
-		     RTE_PCI_DRV_INTR_RMV,
+	.drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
+		     RTE_PCI_DRV_IOVA_AS_VA,
 };
 
 #ifdef RTE_IBVERBS_LINK_DLOPEN
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index de85e85300..ecab7f899f 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -2101,8 +2101,8 @@ static struct rte_pci_driver mlx5_driver = {
 	.remove = mlx5_pci_remove,
 	.dma_map = mlx5_dma_map,
 	.dma_unmap = mlx5_dma_unmap,
-	.drv_flags = (RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
-		      RTE_PCI_DRV_PROBE_AGAIN),
+	.drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
+		     RTE_PCI_DRV_PROBE_AGAIN | RTE_PCI_DRV_IOVA_AS_VA,
 };
 
 #ifdef RTE_IBVERBS_LINK_DLOPEN
-- 
2.11.0


^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [dpdk-stable] [PATCH] net/mlx: support IOVA VA mode
  2019-05-02  1:44 [dpdk-stable] [PATCH] net/mlx: support IOVA VA mode Yongseok Koh
@ 2019-05-02  7:31 ` Yongseok Koh
  2019-05-02  7:43 ` [dpdk-stable] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type Yongseok Koh
  2019-05-02  9:07 ` [dpdk-stable] [PATCH v3 " Yongseok Koh
  2 siblings, 0 replies; 9+ messages in thread
From: Yongseok Koh @ 2019-05-02  7:31 UTC (permalink / raw)
  To: Shahaf Shuler; +Cc: dev, dpdk stable, Davide Caratti



> On May 1, 2019, at 6:44 PM, Yongseok Koh <yskoh@mellanox.com> wrote:
> 
> Set RTE_PCI_DRV_IOVA_AS_VA to driver's drv_flags as device's IOMMU takes
> virtual address.
> 
> Cc: stable@dpdk.org
> Cc: Davide Caratti <dcaratti@redhat.com>
> 
> Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
> ---

Self nack.
pci_one_device_has_iova_va() checks RTE_KDRV_VFIO.
Will send out v2 with adding RTE_KDRV_NIC_MLX.

> drivers/net/mlx4/mlx4.c | 4 ++--
> drivers/net/mlx5/mlx5.c | 4 ++--
> 2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
> index fe559c0407..eccb77b410 100644
> --- a/drivers/net/mlx4/mlx4.c
> +++ b/drivers/net/mlx4/mlx4.c
> @@ -1133,8 +1133,8 @@ static struct rte_pci_driver mlx4_driver = {
> 	},
> 	.id_table = mlx4_pci_id_map,
> 	.probe = mlx4_pci_probe,
> -	.drv_flags = RTE_PCI_DRV_INTR_LSC |
> -		     RTE_PCI_DRV_INTR_RMV,
> +	.drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
> +		     RTE_PCI_DRV_IOVA_AS_VA,
> };
> 
> #ifdef RTE_IBVERBS_LINK_DLOPEN
> diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
> index de85e85300..ecab7f899f 100644
> --- a/drivers/net/mlx5/mlx5.c
> +++ b/drivers/net/mlx5/mlx5.c
> @@ -2101,8 +2101,8 @@ static struct rte_pci_driver mlx5_driver = {
> 	.remove = mlx5_pci_remove,
> 	.dma_map = mlx5_dma_map,
> 	.dma_unmap = mlx5_dma_unmap,
> -	.drv_flags = (RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
> -		      RTE_PCI_DRV_PROBE_AGAIN),
> +	.drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
> +		     RTE_PCI_DRV_PROBE_AGAIN | RTE_PCI_DRV_IOVA_AS_VA,
> };
> 
> #ifdef RTE_IBVERBS_LINK_DLOPEN
> -- 
> 2.11.0
> 


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [dpdk-stable] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type
  2019-05-02  1:44 [dpdk-stable] [PATCH] net/mlx: support IOVA VA mode Yongseok Koh
  2019-05-02  7:31 ` Yongseok Koh
@ 2019-05-02  7:43 ` Yongseok Koh
  2019-05-02  7:43   ` [dpdk-stable] [PATCH v2 2/2] net/mlx: support IOVA VA mode Yongseok Koh
  2019-05-02  8:10   ` [dpdk-stable] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type Thomas Monjalon
  2019-05-02  9:07 ` [dpdk-stable] [PATCH v3 " Yongseok Koh
  2 siblings, 2 replies; 9+ messages in thread
From: Yongseok Koh @ 2019-05-02  7:43 UTC (permalink / raw)
  To: ferruh.yigit, anatoly.burakov, thomas, shahafs; +Cc: dev, stable

Mellanox mlx4/5 PMD doesn't need to be detached from kernel driver and
attached to VFIO/UIO. Control path still goes through the existing kernel
drivers, which is mlx4_core/mlx5_core.

Cc: stable@dpdk.org

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
---

v2:
* add RTE_KDRV_NIC_MLX

 drivers/bus/pci/linux/pci.c             | 6 +++++-
 lib/librte_eal/common/include/rte_dev.h | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c
index c99d523f0a..b931cf9d10 100644
--- a/drivers/bus/pci/linux/pci.c
+++ b/drivers/bus/pci/linux/pci.c
@@ -329,6 +329,9 @@ pci_scan_one(const char *dirname, const struct rte_pci_addr *addr)
 			dev->kdrv = RTE_KDRV_IGB_UIO;
 		else if (!strcmp(driver, "uio_pci_generic"))
 			dev->kdrv = RTE_KDRV_UIO_GENERIC;
+		else if (!strcmp(driver, "mlx4_core") ||
+				!strcmp(driver, "mlx5_core"))
+			dev->kdrv = RTE_KDRV_NIC_MLX;
 		else
 			dev->kdrv = RTE_KDRV_UNKNOWN;
 	} else
@@ -568,7 +571,8 @@ pci_one_device_has_iova_va(void)
 	FOREACH_DRIVER_ON_PCIBUS(drv) {
 		if (drv && drv->drv_flags & RTE_PCI_DRV_IOVA_AS_VA) {
 			FOREACH_DEVICE_ON_PCIBUS(dev) {
-				if (dev->kdrv == RTE_KDRV_VFIO &&
+				if ((dev->kdrv == RTE_KDRV_VFIO ||
+				     dev->kdrv == RTE_KDRV_NIC_MLX) &&
 				    rte_pci_match(drv, dev))
 					return 1;
 			}
diff --git a/lib/librte_eal/common/include/rte_dev.h b/lib/librte_eal/common/include/rte_dev.h
index 56dd52ad9e..a17023d88b 100644
--- a/lib/librte_eal/common/include/rte_dev.h
+++ b/lib/librte_eal/common/include/rte_dev.h
@@ -63,6 +63,7 @@ enum rte_kernel_driver {
 	RTE_KDRV_VFIO,
 	RTE_KDRV_UIO_GENERIC,
 	RTE_KDRV_NIC_UIO,
+	RTE_KDRV_NIC_MLX,
 	RTE_KDRV_NONE,
 };
 
-- 
2.11.0


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [dpdk-stable] [PATCH v2 2/2] net/mlx: support IOVA VA mode
  2019-05-02  7:43 ` [dpdk-stable] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type Yongseok Koh
@ 2019-05-02  7:43   ` Yongseok Koh
  2019-05-02  8:10   ` [dpdk-stable] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type Thomas Monjalon
  1 sibling, 0 replies; 9+ messages in thread
From: Yongseok Koh @ 2019-05-02  7:43 UTC (permalink / raw)
  To: ferruh.yigit, anatoly.burakov, thomas, shahafs; +Cc: dev, stable

Set RTE_PCI_DRV_IOVA_AS_VA to driver's drv_flags as device's IOMMU takes
virtual address.

Cc: stable@dpdk.org

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
---

v2:
* add RTE_KDRV_NIC_MLX

 drivers/net/mlx4/mlx4.c | 4 ++--
 drivers/net/mlx5/mlx5.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index fe559c0407..eccb77b410 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -1133,8 +1133,8 @@ static struct rte_pci_driver mlx4_driver = {
 	},
 	.id_table = mlx4_pci_id_map,
 	.probe = mlx4_pci_probe,
-	.drv_flags = RTE_PCI_DRV_INTR_LSC |
-		     RTE_PCI_DRV_INTR_RMV,
+	.drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
+		     RTE_PCI_DRV_IOVA_AS_VA,
 };
 
 #ifdef RTE_IBVERBS_LINK_DLOPEN
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index de85e85300..ecab7f899f 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -2101,8 +2101,8 @@ static struct rte_pci_driver mlx5_driver = {
 	.remove = mlx5_pci_remove,
 	.dma_map = mlx5_dma_map,
 	.dma_unmap = mlx5_dma_unmap,
-	.drv_flags = (RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
-		      RTE_PCI_DRV_PROBE_AGAIN),
+	.drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
+		     RTE_PCI_DRV_PROBE_AGAIN | RTE_PCI_DRV_IOVA_AS_VA,
 };
 
 #ifdef RTE_IBVERBS_LINK_DLOPEN
-- 
2.11.0


^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [dpdk-stable] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type
  2019-05-02  7:43 ` [dpdk-stable] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type Yongseok Koh
  2019-05-02  7:43   ` [dpdk-stable] [PATCH v2 2/2] net/mlx: support IOVA VA mode Yongseok Koh
@ 2019-05-02  8:10   ` Thomas Monjalon
  1 sibling, 0 replies; 9+ messages in thread
From: Thomas Monjalon @ 2019-05-02  8:10 UTC (permalink / raw)
  To: Yongseok Koh; +Cc: ferruh.yigit, anatoly.burakov, shahafs, dev, stable

02/05/2019 09:43, Yongseok Koh:
> Mellanox mlx4/5 PMD doesn't need to be detached from kernel driver and
> attached to VFIO/UIO. Control path still goes through the existing kernel
> drivers, which is mlx4_core/mlx5_core.

The real change here is to handle RTE_PCI_DRV_IOVA_AS_VA
with Mellanox kernel drivers.
It think it should be explained in the commit log,
because there is no other reason for not using RTE_KDRV_UNKNOWN.

> @@ -568,7 +571,8 @@ pci_one_device_has_iova_va(void)
>  	FOREACH_DRIVER_ON_PCIBUS(drv) {
>  		if (drv && drv->drv_flags & RTE_PCI_DRV_IOVA_AS_VA) {
>  			FOREACH_DEVICE_ON_PCIBUS(dev) {
> -				if (dev->kdrv == RTE_KDRV_VFIO &&
> +				if ((dev->kdrv == RTE_KDRV_VFIO ||
> +				     dev->kdrv == RTE_KDRV_NIC_MLX) &&
>  				    rte_pci_match(drv, dev))
>  					return 1;
>  			}




^ permalink raw reply	[flat|nested] 9+ messages in thread

* [dpdk-stable] [PATCH v3 1/2] bus/pci: add Mellanox kernel driver type
  2019-05-02  1:44 [dpdk-stable] [PATCH] net/mlx: support IOVA VA mode Yongseok Koh
  2019-05-02  7:31 ` Yongseok Koh
  2019-05-02  7:43 ` [dpdk-stable] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type Yongseok Koh
@ 2019-05-02  9:07 ` Yongseok Koh
  2019-05-02  9:07   ` [dpdk-stable] [PATCH v3 2/2] net/mlx: support IOVA VA mode Yongseok Koh
  2019-06-03 22:39   ` [dpdk-stable] [dpdk-dev] [PATCH v3 1/2] bus/pci: add Mellanox kernel driver type Thomas Monjalon
  2 siblings, 2 replies; 9+ messages in thread
From: Yongseok Koh @ 2019-05-02  9:07 UTC (permalink / raw)
  To: ferruh.yigit, anatoly.burakov, thomas, shahafs; +Cc: dev, stable

When checking RTE_PCI_DRV_IOVA_AS_VA flag to determine IOVA mode,
pci_one_device_has_iova_va() returns true only if kernel driver of the
device is vfio. However, Mellanox mlx4/5 PMD doesn't need to be detached
from kernel driver and attached to VFIO/UIO. Control path still goes
through the existing kernel driver, which is mlx4_core/mlx5_core. In order
to make RTE_PCI_DRV_IOVA_AS_VA effective for mlx4/mlx5 PMD, a new kernel
driver type has to be introduced.

Cc: stable@dpdk.org

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
---

v3:
* make commit log more explanatory

v2:
* add RTE_KDRV_NIC_MLX

 drivers/bus/pci/linux/pci.c             | 6 +++++-
 lib/librte_eal/common/include/rte_dev.h | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c
index c99d523f0a..b931cf9d10 100644
--- a/drivers/bus/pci/linux/pci.c
+++ b/drivers/bus/pci/linux/pci.c
@@ -329,6 +329,9 @@ pci_scan_one(const char *dirname, const struct rte_pci_addr *addr)
 			dev->kdrv = RTE_KDRV_IGB_UIO;
 		else if (!strcmp(driver, "uio_pci_generic"))
 			dev->kdrv = RTE_KDRV_UIO_GENERIC;
+		else if (!strcmp(driver, "mlx4_core") ||
+				!strcmp(driver, "mlx5_core"))
+			dev->kdrv = RTE_KDRV_NIC_MLX;
 		else
 			dev->kdrv = RTE_KDRV_UNKNOWN;
 	} else
@@ -568,7 +571,8 @@ pci_one_device_has_iova_va(void)
 	FOREACH_DRIVER_ON_PCIBUS(drv) {
 		if (drv && drv->drv_flags & RTE_PCI_DRV_IOVA_AS_VA) {
 			FOREACH_DEVICE_ON_PCIBUS(dev) {
-				if (dev->kdrv == RTE_KDRV_VFIO &&
+				if ((dev->kdrv == RTE_KDRV_VFIO ||
+				     dev->kdrv == RTE_KDRV_NIC_MLX) &&
 				    rte_pci_match(drv, dev))
 					return 1;
 			}
diff --git a/lib/librte_eal/common/include/rte_dev.h b/lib/librte_eal/common/include/rte_dev.h
index 56dd52ad9e..a17023d88b 100644
--- a/lib/librte_eal/common/include/rte_dev.h
+++ b/lib/librte_eal/common/include/rte_dev.h
@@ -63,6 +63,7 @@ enum rte_kernel_driver {
 	RTE_KDRV_VFIO,
 	RTE_KDRV_UIO_GENERIC,
 	RTE_KDRV_NIC_UIO,
+	RTE_KDRV_NIC_MLX,
 	RTE_KDRV_NONE,
 };
 
-- 
2.11.0


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [dpdk-stable] [PATCH v3 2/2] net/mlx: support IOVA VA mode
  2019-05-02  9:07 ` [dpdk-stable] [PATCH v3 " Yongseok Koh
@ 2019-05-02  9:07   ` Yongseok Koh
  2019-05-02 13:06     ` [dpdk-stable] [dpdk-dev] " Shahaf Shuler
  2019-06-03 22:39   ` [dpdk-stable] [dpdk-dev] [PATCH v3 1/2] bus/pci: add Mellanox kernel driver type Thomas Monjalon
  1 sibling, 1 reply; 9+ messages in thread
From: Yongseok Koh @ 2019-05-02  9:07 UTC (permalink / raw)
  To: ferruh.yigit, anatoly.burakov, thomas, shahafs; +Cc: dev, stable

Set RTE_PCI_DRV_IOVA_AS_VA to driver's drv_flags as device's IOMMU takes
virtual address.

Cc: stable@dpdk.org

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
---

v3:
* no change

v2:
* add RTE_KDRV_NIC_MLX

 drivers/net/mlx4/mlx4.c | 4 ++--
 drivers/net/mlx5/mlx5.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index fe559c0407..eccb77b410 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -1133,8 +1133,8 @@ static struct rte_pci_driver mlx4_driver = {
 	},
 	.id_table = mlx4_pci_id_map,
 	.probe = mlx4_pci_probe,
-	.drv_flags = RTE_PCI_DRV_INTR_LSC |
-		     RTE_PCI_DRV_INTR_RMV,
+	.drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
+		     RTE_PCI_DRV_IOVA_AS_VA,
 };
 
 #ifdef RTE_IBVERBS_LINK_DLOPEN
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index de85e85300..ecab7f899f 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -2101,8 +2101,8 @@ static struct rte_pci_driver mlx5_driver = {
 	.remove = mlx5_pci_remove,
 	.dma_map = mlx5_dma_map,
 	.dma_unmap = mlx5_dma_unmap,
-	.drv_flags = (RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
-		      RTE_PCI_DRV_PROBE_AGAIN),
+	.drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
+		     RTE_PCI_DRV_PROBE_AGAIN | RTE_PCI_DRV_IOVA_AS_VA,
 };
 
 #ifdef RTE_IBVERBS_LINK_DLOPEN
-- 
2.11.0


^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [dpdk-stable] [dpdk-dev] [PATCH v3 2/2] net/mlx: support IOVA VA mode
  2019-05-02  9:07   ` [dpdk-stable] [PATCH v3 2/2] net/mlx: support IOVA VA mode Yongseok Koh
@ 2019-05-02 13:06     ` Shahaf Shuler
  0 siblings, 0 replies; 9+ messages in thread
From: Shahaf Shuler @ 2019-05-02 13:06 UTC (permalink / raw)
  To: Yongseok Koh, ferruh.yigit, anatoly.burakov, Thomas Monjalon; +Cc: dev, stable

Thursday, May 2, 2019 12:08 PM, Yongseok Koh:
> Subject: [dpdk-dev] [PATCH v3 2/2] net/mlx: support IOVA VA mode
> 
> Set RTE_PCI_DRV_IOVA_AS_VA to driver's drv_flags as device's IOMMU
> takes virtual address.
> 
> Cc: stable@dpdk.org
> 
> Signed-off-by: Yongseok Koh <yskoh@mellanox.com>

Acked-by: Shahaf Shuler <shahafs@mellanox.com>

> ---
> 
> v3:
> * no change
> 
> v2:
> * add RTE_KDRV_NIC_MLX
> 
>  drivers/net/mlx4/mlx4.c | 4 ++--
>  drivers/net/mlx5/mlx5.c | 4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c index
> fe559c0407..eccb77b410 100644
> --- a/drivers/net/mlx4/mlx4.c
> +++ b/drivers/net/mlx4/mlx4.c
> @@ -1133,8 +1133,8 @@ static struct rte_pci_driver mlx4_driver = {
>  	},
>  	.id_table = mlx4_pci_id_map,
>  	.probe = mlx4_pci_probe,
> -	.drv_flags = RTE_PCI_DRV_INTR_LSC |
> -		     RTE_PCI_DRV_INTR_RMV,
> +	.drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
> +		     RTE_PCI_DRV_IOVA_AS_VA,
>  };
> 
>  #ifdef RTE_IBVERBS_LINK_DLOPEN
> diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index
> de85e85300..ecab7f899f 100644
> --- a/drivers/net/mlx5/mlx5.c
> +++ b/drivers/net/mlx5/mlx5.c
> @@ -2101,8 +2101,8 @@ static struct rte_pci_driver mlx5_driver = {
>  	.remove = mlx5_pci_remove,
>  	.dma_map = mlx5_dma_map,
>  	.dma_unmap = mlx5_dma_unmap,
> -	.drv_flags = (RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
> -		      RTE_PCI_DRV_PROBE_AGAIN),
> +	.drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
> +		     RTE_PCI_DRV_PROBE_AGAIN |
> RTE_PCI_DRV_IOVA_AS_VA,
>  };
> 
>  #ifdef RTE_IBVERBS_LINK_DLOPEN
> --
> 2.11.0


^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [dpdk-stable] [dpdk-dev] [PATCH v3 1/2] bus/pci: add Mellanox kernel driver type
  2019-05-02  9:07 ` [dpdk-stable] [PATCH v3 " Yongseok Koh
  2019-05-02  9:07   ` [dpdk-stable] [PATCH v3 2/2] net/mlx: support IOVA VA mode Yongseok Koh
@ 2019-06-03 22:39   ` Thomas Monjalon
  1 sibling, 0 replies; 9+ messages in thread
From: Thomas Monjalon @ 2019-06-03 22:39 UTC (permalink / raw)
  To: Yongseok Koh; +Cc: dev, ferruh.yigit, anatoly.burakov, shahafs, stable

02/05/2019 11:07, Yongseok Koh:
> When checking RTE_PCI_DRV_IOVA_AS_VA flag to determine IOVA mode,
> pci_one_device_has_iova_va() returns true only if kernel driver of the
> device is vfio. However, Mellanox mlx4/5 PMD doesn't need to be detached
> from kernel driver and attached to VFIO/UIO. Control path still goes
> through the existing kernel driver, which is mlx4_core/mlx5_core. In order
> to make RTE_PCI_DRV_IOVA_AS_VA effective for mlx4/mlx5 PMD, a new kernel
> driver type has to be introduced.
> 
> Cc: stable@dpdk.org
> 
> Signed-off-by: Yongseok Koh <yskoh@mellanox.com>

Applied, thanks




^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2019-06-03 22:39 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-05-02  1:44 [dpdk-stable] [PATCH] net/mlx: support IOVA VA mode Yongseok Koh
2019-05-02  7:31 ` Yongseok Koh
2019-05-02  7:43 ` [dpdk-stable] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type Yongseok Koh
2019-05-02  7:43   ` [dpdk-stable] [PATCH v2 2/2] net/mlx: support IOVA VA mode Yongseok Koh
2019-05-02  8:10   ` [dpdk-stable] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type Thomas Monjalon
2019-05-02  9:07 ` [dpdk-stable] [PATCH v3 " Yongseok Koh
2019-05-02  9:07   ` [dpdk-stable] [PATCH v3 2/2] net/mlx: support IOVA VA mode Yongseok Koh
2019-05-02 13:06     ` [dpdk-stable] [dpdk-dev] " Shahaf Shuler
2019-06-03 22:39   ` [dpdk-stable] [dpdk-dev] [PATCH v3 1/2] bus/pci: add Mellanox kernel driver type Thomas Monjalon

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