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Message-ID: <ZiEZ3c-aJ_i6vQ9F@nanopsycho>
Date: Thu, 18 Apr 2024 15:02:21 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
Cc: intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
	jacob.e.keller@...el.com, michal.kubiak@...el.com,
	maciej.fijalkowski@...el.com, sridhar.samudrala@...el.com,
	przemyslaw.kitszel@...el.com, wojciech.drewek@...el.com,
	pio.raczynski@...il.com, jiri@...dia.com,
	mateusz.polchlopek@...el.com
Subject: Re: [iwl-next v4 6/8] ice: base subfunction aux driver

Wed, Apr 17, 2024 at 04:20:26PM CEST, michal.swiatkowski@...ux.intel.com wrote:
>From: Piotr Raczynski <piotr.raczynski@...el.com>

[...]


>+static int ice_sf_dev_probe(struct auxiliary_device *adev,
>+			    const struct auxiliary_device_id *id)
>+{
>+	struct ice_sf_dev *sf_dev = ice_adev_to_sf_dev(adev);
>+	struct ice_dynamic_port *dyn_port = sf_dev->dyn_port;
>+	struct ice_vsi_cfg_params params = {};
>+	struct ice_vsi *vsi = dyn_port->vsi;
>+	struct ice_pf *pf = dyn_port->pf;
>+	struct device *dev = &adev->dev;
>+	struct ice_sf_priv *priv;
>+	struct devlink *devlink;
>+	int err;
>+
>+	params.type = ICE_VSI_SF;
>+	params.pi = pf->hw.port_info;
>+	params.flags = ICE_VSI_FLAG_INIT;
>+
>+	priv = ice_allocate_sf(&adev->dev);
>+	if (!priv) {
>+		dev_err(dev, "Subfunction devlink alloc failed");
>+		return -ENOMEM;
>+	}
>+
>+	priv->dev = sf_dev;
>+	sf_dev->priv = priv;
>+	devlink = priv_to_devlink(priv);
>+
>+	devlink_register(devlink);

Do register at the very end. Btw, currently the error path seems to be
broken, leaving devlink instance allocated and registered.


>+	devl_lock(devlink);
>+
>+	err = ice_vsi_cfg(vsi, &params);
>+	if (err) {
>+		dev_err(dev, "Subfunction vsi config failed");
>+		goto err_devlink_unlock;
>+	}
>+
>+	err = ice_devlink_create_sf_dev_port(sf_dev);
>+	if (err) {
>+		dev_err(dev, "Cannot add ice virtual devlink port for subfunction");
>+		goto err_vsi_decfg;
>+	}
>+
>+	err = ice_fltr_add_mac_and_broadcast(vsi, vsi->netdev->dev_addr,
>+					     ICE_FWD_TO_VSI);
>+	if (err) {
>+		dev_err(dev, "can't add MAC filters %pM for VSI %d\n",
>+			vsi->netdev->dev_addr, vsi->idx);
>+		goto err_devlink_destroy;
>+	}
>+
>+	ice_napi_add(vsi);
>+	devl_unlock(devlink);
>+
>+	return 0;
>+
>+err_devlink_destroy:
>+	ice_devlink_destroy_sf_dev_port(sf_dev);
>+err_vsi_decfg:
>+	ice_vsi_decfg(vsi);
>+err_devlink_unlock:
>+	devl_unlock(devlink);
>+	return err;

[...]

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