[dpdk-dev] [PATCH v4 13/16] vdpa/mlx5: support SubFunction
From: Xueming Li <hidden>
Date: 2021-07-21 14:40:02
Subsystem:
mellanox mlx5 vdpa driver, the rest, virtio core · Maintainers:
Dragos Tatulea, Linus Torvalds, "Michael S. Tsirkin", Jason Wang
From: Thomas Monjalon <redacted> Supports SubFunction on auxiliary bus. SF probe devargs: auxiliary:mlx5_core.sf.<id>,class=vdpa Signed-off-by: Thomas Monjalon <redacted> Acked-by: Viacheslav Ovsiienko <redacted> --- doc/guides/vdpadevs/mlx5.rst | 10 ++++++++++ drivers/vdpa/mlx5/mlx5_vdpa.c | 8 ++++++-- 2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/doc/guides/vdpadevs/mlx5.rst b/doc/guides/vdpadevs/mlx5.rst
index 9b2f9f12c7..e81dbd0004 100644
--- a/doc/guides/vdpadevs/mlx5.rst
+++ b/doc/guides/vdpadevs/mlx5.rst@@ -162,6 +162,16 @@ Driver options - 0, HW default. +Devargs example +^^^^^^^^^^^^^^^ + +- PCI devargs: + + -a 0000:03:00.2,class=vdpa + +- Auxiliary devargs: + + -a auxiliary:mlx5_core.sf.2,class=vdpa Error handling ^^^^^^^^^^^^^^
diff --git a/drivers/vdpa/mlx5/mlx5_vdpa.c b/drivers/vdpa/mlx5/mlx5_vdpa.c
index 9c9a552ba0..6d17d7a6f3 100644
--- a/drivers/vdpa/mlx5/mlx5_vdpa.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa.c@@ -553,9 +553,13 @@ mlx5_vdpa_sys_roce_disable(const char *addr) static int mlx5_vdpa_roce_disable(struct rte_device *dev) { + char pci_addr[PCI_PRI_STR_SIZE] = { 0 }; + + if (mlx5_dev_to_pci_str(dev, pci_addr, sizeof(pci_addr)) < 0) + return -rte_errno; /* Firstly try to disable ROCE by Netlink and fallback to sysfs. */ - if (mlx5_vdpa_nl_roce_disable(dev->name) != 0 && - mlx5_vdpa_sys_roce_disable(dev->name) != 0) + if (mlx5_vdpa_nl_roce_disable(pci_addr) != 0 && + mlx5_vdpa_sys_roce_disable(pci_addr) != 0) return -rte_errno; return 0; }
--
2.25.1