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nfp: initialize netdev's dev_port with correct id

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`dev_port` is used to differentiate devices that instantiate from
the same function, which is the case in most of NFP NICs.

In some customized scenario, `dev_port` is used to rename netdev
instead of `phys_port_name`. Example rules using `dev_port`:

  SUBSYSTEM=="net", ACTION=="add", KERNELS=="0000:e1:00.0", ATTR{dev_port}=="0", NAME:="ens8np0"
  SUBSYSTEM=="net", ACTION=="add", KERNELS=="0000:e1:00.0", ATTR{dev_port}=="1", NAME:="ens8np1"

To take port split case into account, here we initialize `dev_port`
according to the port sequence in eth_table from management firmware
instead of using port label id directly. And management firmware
makes sure that port sequence matches its label id.

Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Acked-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Link: https://lore.kernel.org/r/20230405120829.28817-1-louis.peens@corigine.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Yinjun Zhang 2023-04-05 14:08:29 +02:00 committed by Paolo Abeni
parent 905a9eb5f6
commit 0ebd4fd6b9
1 changed files with 1 additions and 0 deletions
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1
drivers/net/ethernet/netronome/nfp/nfp_port.c
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@ -189,6 +189,7 @@ int nfp_port_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
port->eth_port = &pf->eth_tbl->ports[id];
port->eth_id = pf->eth_tbl->ports[id].index;
port->netdev->dev_port = id;
if (pf->mac_stats_mem)
port->eth_stats =
pf->mac_stats_mem + port->eth_id * NFP_MAC_STATS_SIZE;