ionic: only save the user set VF attributes

Report the current FW values for the VF attributes, but don't
save the FW values locally, only save the vf attributes that
are given to us from the user.  This allows us to replay user
data, and doesn't end up confusing things like "who set the
mac address".
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/pensando/ionic/ionic_lif.c

@@ -2220,7 +2220,7 @@ static int ionic_eth_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd
 	}
 }
 
-static int ionic_update_cached_vf_config(struct ionic *ionic, int vf)
+static int ionic_get_fw_vf_config(struct ionic *ionic, int vf, struct ionic_vf *vfdata)
 {
 	struct ionic_vf_getattr_comp comp = { 0 };
 	int err;
@@ -2231,14 +2231,14 @@ static int ionic_update_cached_vf_config(struct ionic *ionic, int vf)
 	if (err && comp.status != IONIC_RC_ENOSUPP)
 		goto err_out;
 	if (!err)
-		ionic->vfs[vf].vlanid = comp.vlanid;
+		vfdata->vlanid = comp.vlanid;
 
 	attr = IONIC_VF_ATTR_SPOOFCHK;
 	err = ionic_dev_cmd_vf_getattr(ionic, vf, attr, &comp);
 	if (err && comp.status != IONIC_RC_ENOSUPP)
 		goto err_out;
 	if (!err)
-		ionic->vfs[vf].spoofchk = comp.spoofchk;
+		vfdata->spoofchk = comp.spoofchk;
 
 	attr = IONIC_VF_ATTR_LINKSTATE;
 	err = ionic_dev_cmd_vf_getattr(ionic, vf, attr, &comp);
@@ -2247,13 +2247,13 @@ static int ionic_update_cached_vf_config(struct ionic *ionic, int vf)
 	if (!err) {
 		switch (comp.linkstate) {
 		case IONIC_VF_LINK_STATUS_UP:
-			ionic->vfs[vf].linkstate = IFLA_VF_LINK_STATE_ENABLE;
+			vfdata->linkstate = IFLA_VF_LINK_STATE_ENABLE;
 			break;
 		case IONIC_VF_LINK_STATUS_DOWN:
-			ionic->vfs[vf].linkstate = IFLA_VF_LINK_STATE_DISABLE;
+			vfdata->linkstate = IFLA_VF_LINK_STATE_DISABLE;
 			break;
 		case IONIC_VF_LINK_STATUS_AUTO:
-			ionic->vfs[vf].linkstate = IFLA_VF_LINK_STATE_AUTO;
+			vfdata->linkstate = IFLA_VF_LINK_STATE_AUTO;
 			break;
 		default:
 			dev_warn(ionic->dev, "Unexpected link state %u\n", comp.linkstate);
@@ -2266,21 +2266,21 @@ static int ionic_update_cached_vf_config(struct ionic *ionic, int vf)
 	if (err && comp.status != IONIC_RC_ENOSUPP)
 		goto err_out;
 	if (!err)
-		ionic->vfs[vf].maxrate = comp.maxrate;
+		vfdata->maxrate = comp.maxrate;
 
 	attr = IONIC_VF_ATTR_TRUST;
 	err = ionic_dev_cmd_vf_getattr(ionic, vf, attr, &comp);
 	if (err && comp.status != IONIC_RC_ENOSUPP)
 		goto err_out;
 	if (!err)
-		ionic->vfs[vf].trusted = comp.trust;
+		vfdata->trusted = comp.trust;
 
 	attr = IONIC_VF_ATTR_MAC;
 	err = ionic_dev_cmd_vf_getattr(ionic, vf, attr, &comp);
 	if (err && comp.status != IONIC_RC_ENOSUPP)
 		goto err_out;
 	if (!err)
-		ether_addr_copy(ionic->vfs[vf].macaddr, comp.macaddr);
+		ether_addr_copy(vfdata->macaddr, comp.macaddr);
 
 err_out:
 	if (err)
@@ -2295,6 +2295,7 @@ static int ionic_get_vf_config(struct net_device *netdev,
 {
 	struct ionic_lif *lif = netdev_priv(netdev);
 	struct ionic *ionic = lif->ionic;
+	struct ionic_vf vfdata = { 0 };
 	int ret = 0;
 
 	if (!netif_device_present(netdev))
@@ -2308,14 +2309,14 @@ static int ionic_get_vf_config(struct net_device *netdev,
 		ivf->vf = vf;
 		ivf->qos = 0;
 
-		ret = ionic_update_cached_vf_config(ionic, vf);
+		ret = ionic_get_fw_vf_config(ionic, vf, &vfdata);
 		if (!ret) {
-			ivf->vlan         = le16_to_cpu(ionic->vfs[vf].vlanid);
-			ivf->spoofchk     = ionic->vfs[vf].spoofchk;
-			ivf->linkstate    = ionic->vfs[vf].linkstate;
-			ivf->max_tx_rate  = le32_to_cpu(ionic->vfs[vf].maxrate);
-			ivf->trusted      = ionic->vfs[vf].trusted;
-			ether_addr_copy(ivf->mac, ionic->vfs[vf].macaddr);
+			ivf->vlan         = le16_to_cpu(vfdata.vlanid);
+			ivf->spoofchk     = vfdata.spoofchk;
+			ivf->linkstate    = vfdata.linkstate;
+			ivf->max_tx_rate  = le32_to_cpu(vfdata.maxrate);
+			ivf->trusted      = vfdata.trusted;
+			ether_addr_copy(ivf->mac, vfdata.macaddr);
 		}
 	}