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mlx5 sriov: Add controls for VFs to set port/node GUIDs.

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Setting GUIDs make RoCE offloads functional on VFs.

Reported and tested by:	chuck
Sponsored by:	Mellanox Technologies - Nvidia
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2020-08-31 16:32:17 +00:00
parent cca1f7a12f
commit 596b98ba16
1 changed files with 29 additions and 0 deletions
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29
sys/dev/mlx5/mlx5_core/mlx5_main.c
View File

@ -180,6 +180,8 @@ static struct mlx5_profile profiles[] = {
#ifdef PCI_IOV
static const char iov_mac_addr_name[] = "mac-addr";
static const char iov_node_guid_name[] = "node-guid";
static const char iov_port_guid_name[] = "port-guid";
#endif
static int set_dma_caps(struct pci_dev *pdev)
@ -1624,6 +1626,10 @@ static int init_one(struct pci_dev *pdev,
vf_schema = pci_iov_schema_alloc_node();
pci_iov_schema_add_unicast_mac(vf_schema,
iov_mac_addr_name, 0, NULL);
pci_iov_schema_add_uint64(vf_schema, iov_node_guid_name,
0, 0);
pci_iov_schema_add_uint64(vf_schema, iov_port_guid_name,
0, 0);
err = pci_iov_attach(bsddev, pf_schema, vf_schema);
if (err != 0) {
device_printf(bsddev,
@ -1825,6 +1831,7 @@ mlx5_iov_add_vf(device_t dev, uint16_t vfnum, const nvlist_t *vf_config)
struct mlx5_priv *priv;
const void *mac;
size_t mac_size;
uint64_t node_guid, port_guid;
int error;
pdev = device_get_softc(dev);
@ -1846,6 +1853,28 @@ mlx5_iov_add_vf(device_t dev, uint16_t vfnum, const nvlist_t *vf_config)
}
}
if (nvlist_exists_number(vf_config, iov_node_guid_name)) {
node_guid = nvlist_get_number(vf_config, iov_node_guid_name);
error = -mlx5_modify_nic_vport_node_guid(core_dev, vfnum + 1,
node_guid);
if (error != 0) {
mlx5_core_err(core_dev,
"modifying node GUID for VF %d failed, error %d\n",
vfnum + 1, error);
}
}
if (nvlist_exists_number(vf_config, iov_port_guid_name)) {
port_guid = nvlist_get_number(vf_config, iov_port_guid_name);
error = -mlx5_modify_nic_vport_port_guid(core_dev, vfnum + 1,
port_guid);
if (error != 0) {
mlx5_core_err(core_dev,
"modifying port GUID for VF %d failed, error %d\n",
vfnum + 1, error);
}
}
error = -mlx5_eswitch_set_vport_state(priv->eswitch, vfnum + 1,
VPORT_STATE_FOLLOW);
if (error != 0) {