[dpdk-dev] [PATCH v2 1/2] bus/pci: add Mellanox kernel driver type
Yongseok Koh
yskoh at mellanox.com
Thu May 2 09:43:56 CEST 2019
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 at dpdk.org
Signed-off-by: Yongseok Koh <yskoh at 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
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