nfp: assign vNIC id as phys_port_name of vNICs which are not ports

When NFP is modelled as a switch we assign phys_port_name to respective
port(representor )s:

 vNIC0 - | - PF port (pf%d)     MAC/PHY (p%d[s%d]) - |E==

In most cases there is only one vNIC for communication with the switch.
If there is more than one we need to be able to identify them.  Use %d
as phys_port_name of the vNICs.

We don't have to pass ID to nfp_net_debugfs_vnic_add() separately any
more.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h
index bd7d8ae..57cb035 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/nfp_net.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h
@@ -545,6 +545,7 @@ struct nfp_net_dp {
 /**
  * struct nfp_net - NFP network device structure
  * @dp:                        Datapath structure
+ * @id:                        vNIC id within the PF (0 for VFs)
  * @fw_ver:            Firmware version
  * @cap:                Capabilities advertised by the Firmware
  * @max_mtu:            Maximum support MTU advertised by the Firmware
@@ -597,6 +598,8 @@ struct nfp_net {
 
        struct nfp_net_fw_version fw_ver;
 
+       u32 id;
+
        u32 cap;
        u32 max_mtu;
 
@@ -909,7 +912,7 @@ int nfp_net_ring_reconfig(struct nfp_net *nn, struct nfp_net_dp *new,
 void nfp_net_debugfs_create(void);
 void nfp_net_debugfs_destroy(void);
 struct dentry *nfp_net_debugfs_device_add(struct pci_dev *pdev);
-void nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir, int id);
+void nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir);
 void nfp_net_debugfs_dir_clean(struct dentry **dir);
 #else
 static inline void nfp_net_debugfs_create(void)
@@ -926,7 +929,7 @@ static inline struct dentry *nfp_net_debugfs_device_add(struct pci_dev *pdev)
 }
 
 static inline void
-nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir, int id)
+nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir)
 {
 }
 

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index d9111c0..eea11e8 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -3277,6 +3277,24 @@ nfp_net_features_check(struct sk_buff *skb, struct net_device *dev,
        return features;
 }
 
+static int
+nfp_net_get_phys_port_name(struct net_device *netdev, char *name, size_t len)
+{
+       struct nfp_net *nn = netdev_priv(netdev);
+       int n;
+
+       if (nn->port)
+               return nfp_port_get_phys_port_name(netdev, name, len);
+
+       if (!nn->dp.is_vf) {
+               n = snprintf(name, len, "%d", nn->id);
+               if (n >= len)
+                       return -EINVAL;
+       }
+
+       return 0;
+}
+
 /**
  * nfp_net_set_vxlan_port() - set vxlan port in SW and reconfigure HW
  * @nn:   NFP Net device to reconfigure
@@ -3475,7 +3493,7 @@ const struct net_device_ops nfp_net_netdev_ops = {
        .ndo_set_mac_address    = nfp_net_set_mac_address,
        .ndo_set_features       = nfp_net_set_features,
        .ndo_features_check     = nfp_net_features_check,
-       .ndo_get_phys_port_name = nfp_port_get_phys_port_name,
+       .ndo_get_phys_port_name = nfp_net_get_phys_port_name,
        .ndo_udp_tunnel_add     = nfp_net_add_vxlan_port,
        .ndo_udp_tunnel_del     = nfp_net_del_vxlan_port,
        .ndo_bpf                = nfp_net_xdp,

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c b/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c
index 67cdd83..099b63d 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c
@@ -201,7 +201,7 @@ static const struct file_operations nfp_xdp_q_fops = {
        .llseek = seq_lseek
 };
 
-void nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir, int id)
+void nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir)
 {
        struct dentry *queues, *tx, *rx, *xdp;
        char name[20];
@@ -211,7 +211,7 @@ void nfp_net_debugfs_vnic_add(struct nfp_net *nn, struct dentry *ddir, int id)
                return;
 
        if (nfp_net_is_data_vnic(nn))
-               sprintf(name, "vnic%d", id);
+               sprintf(name, "vnic%d", nn->id);
        else
                strcpy(name, "ctrl-vnic");
        nn->debugfs_dir = debugfs_create_dir(name, ddir);

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
index b984221..28516ee 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
@@ -178,11 +178,13 @@ nfp_net_pf_init_vnic(struct nfp_pf *pf, struct nfp_net *nn, unsigned int id)
 {
        int err;
 
+       nn->id = id;
+
        err = nfp_net_init(nn);
        if (err)
                return err;
 
-       nfp_net_debugfs_vnic_add(nn, pf->ddir, id);
+       nfp_net_debugfs_vnic_add(nn, pf->ddir);
 
        if (nn->port) {
                err = nfp_devlink_port_register(pf->app, nn->port);

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c b/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c
index b802a1d..68928c8 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c
@@ -283,7 +283,7 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev,
 
        nfp_net_info(nn);
        vf->ddir = nfp_net_debugfs_device_add(pdev);
-       nfp_net_debugfs_vnic_add(nn, vf->ddir, 0);
+       nfp_net_debugfs_vnic_add(nn, vf->ddir);
 
        return 0;