Author: kib
Date: Mon Aug 31 16:32:17 2020
New Revision: 365003
URL: https://svnweb.freebsd.org/changeset/base/365003

Log:
  mlx5 sriov: Add controls for VFs to set port/node GUIDs.
  
  Setting GUIDs make RoCE offloads functional on VFs.
  
  Reported and tested by:       chuck
  Sponsored by: Mellanox Technologies - Nvidia
  MFC after:    1 week

Modified:
  head/sys/dev/mlx5/mlx5_core/mlx5_main.c

Modified: head/sys/dev/mlx5/mlx5_core/mlx5_main.c
==============================================================================
--- head/sys/dev/mlx5/mlx5_core/mlx5_main.c     Mon Aug 31 16:30:52 2020        
(r365002)
+++ head/sys/dev/mlx5/mlx5_core/mlx5_main.c     Mon Aug 31 16:32:17 2020        
(r365003)
@@ -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 nv
        struct mlx5_priv *priv;
        const void *mac;
        size_t mac_size;
+       uint64_t node_guid, port_guid;
        int error;
 
        pdev = device_get_softc(dev);
@@ -1842,6 +1849,28 @@ mlx5_iov_add_vf(device_t dev, uint16_t vfnum, const nv
                if (error != 0) {
                        mlx5_core_err(core_dev,
                            "setting MAC for VF %d failed, error %d\n",
+                           vfnum + 1, error);
+               }
+       }
+
+       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);
                }
        }
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