[PATCH net-next 06/14] nfp: spawn nfp_ports for PF and VF ports

[Jakub Kicinski]

nfp_port is an abstraction which is supposed to allow us sharing
code between different netdev types (vNIC vs repr).  Spawn ports
for PFs and VFs to enable this sharing.

Signed-off-by: Jakub Kicinski <jakub.kicin...@netronome.com>
Reviewed-by: Simon Horman <simon.hor...@netronome.com>
---
 drivers/net/ethernet/netronome/nfp/flower/main.c | 19 +++++++++++++++++--
 drivers/net/ethernet/netronome/nfp/nfp_port.h    | 20 ++++++++++++++++++--
 2 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.c 
b/drivers/net/ethernet/netronome/nfp/flower/main.c
index 54d42a7f0d75..757bc3d78ea4 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/main.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/main.c
@@ -162,14 +162,19 @@ nfp_flower_spawn_vnic_reprs(struct nfp_app *app,
        u8 nfp_pcie = nfp_cppcore_pcie_unit(app->pf->cpp);
        struct nfp_flower_priv *priv = app->priv;
        struct nfp_reprs *reprs, *old_reprs;
+       enum nfp_port_type port_type;
        const u8 queue = 0;
        int i, err;
 
+       port_type = repr_type == NFP_REPR_TYPE_PF ? NFP_PORT_PF_PORT :
+                                                   NFP_PORT_VF_PORT;
+
        reprs = nfp_reprs_alloc(cnt);
        if (!reprs)
                return -ENOMEM;
 
        for (i = 0; i < cnt; i++) {
+               struct nfp_port *port;
                u32 port_id;
 
                reprs->reprs[i] = nfp_repr_alloc(app);
@@ -178,15 +183,25 @@ nfp_flower_spawn_vnic_reprs(struct nfp_app *app,
                        goto err_reprs_clean;
                }
 
+               port = nfp_port_alloc(app, port_type, reprs->reprs[i]);
+               if (repr_type == NFP_REPR_TYPE_PF) {
+                       port->pf_id = i;
+               } else {
+                       port->pf_id = 0; /* For now we only support 1 PF */
+                       port->vf_id = i;
+               }
+
                eth_hw_addr_random(reprs->reprs[i]);
 
                port_id = nfp_flower_cmsg_pcie_port(nfp_pcie, vnic_type,
                                                    i, queue);
                err = nfp_repr_init(app, reprs->reprs[i],
                                    &nfp_flower_repr_netdev_ops,
-                                   port_id, NULL, priv->nn->dp.netdev);
-               if (err)
+                                   port_id, port, priv->nn->dp.netdev);
+               if (err) {
+                       nfp_port_free(port);
                        goto err_reprs_clean;
+               }
 
                nfp_info(app->cpp, "%s%d Representor(%s) created\n",
                         repr_type == NFP_REPR_TYPE_PF ? "PF" : "VF", i,
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_port.h 
b/drivers/net/ethernet/netronome/nfp/nfp_port.h
index f472bea4ec2b..57d852a4ca59 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_port.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_port.h
@@ -47,10 +47,14 @@ struct nfp_port;
  *                     state when port disappears because of FW fault or config
  *                     change
  * @NFP_PORT_PHYS_PORT:        external NIC port
+ * @NFP_PORT_PF_PORT:  logical port of PCI PF
+ * @NFP_PORT_VF_PORT:  logical port of PCI VF
  */
 enum nfp_port_type {
        NFP_PORT_INVALID,
        NFP_PORT_PHYS_PORT,
+       NFP_PORT_PF_PORT,
+       NFP_PORT_VF_PORT,
 };
 
 /**
@@ -72,6 +76,8 @@ enum nfp_port_flags {
  * @dl_port:   devlink port structure
  * @eth_id:    for %NFP_PORT_PHYS_PORT port ID in NFP enumeration scheme
  * @eth_port:  for %NFP_PORT_PHYS_PORT translated ETH Table port entry
+ * @pf_id:     for %NFP_PORT_PF_PORT, %NFP_PORT_VF_PORT ID of the PCI PF (0-3)
+ * @vf_id:     for %NFP_PORT_VF_PORT ID of the PCI VF within @pf_id
  * @port_list: entry on pf's list of ports
  */
 struct nfp_port {
@@ -84,8 +90,18 @@ struct nfp_port {
 
        struct devlink_port dl_port;
 
-       unsigned int eth_id;
-       struct nfp_eth_table_port *eth_port;
+       union {
+               /* NFP_PORT_PHYS_PORT */
+               struct {
+                       unsigned int eth_id;
+                       struct nfp_eth_table_port *eth_port;
+               };
+               /* NFP_PORT_PF_PORT, NFP_PORT_VF_PORT */
+               struct {
+                       unsigned int pf_id;
+                       unsigned int vf_id;
+               };
+       };
 
        struct list_head port_list;
 };
-- 
2.11.0