ixgbe: Populate the prio_tc_map in ixgbe_setup_tc
There were cases where the prio_tc_map was not populated when we were
calling open. This will result in us incorrectly configuring the traffic
classes when DCB is enabled. In order to correct this I have updated the
code so that we now populate the values prior to allocating the q_vectors
and calling ixgbe_open.
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index d3cf887..91bc60f 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -6596,6 +6596,31 @@
}
/**
+ * ixgbe_set_prio_tc_map - Configure netdev prio tc map
+ * @adapter: Pointer to adapter struct
+ *
+ * Populate the netdev user priority to tc map
+ */
+static void ixgbe_set_prio_tc_map(struct ixgbe_adapter *adapter)
+{
+ struct net_device *dev = adapter->netdev;
+ struct ixgbe_dcb_config *dcb_cfg = &adapter->dcb_cfg;
+ struct ieee_ets *ets = adapter->ixgbe_ieee_ets;
+ u8 prio;
+
+ for (prio = 0; prio < MAX_USER_PRIORITY; prio++) {
+ u8 tc = 0;
+
+ if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE)
+ tc = ixgbe_dcb_get_tc_from_up(dcb_cfg, 0, prio);
+ else if (ets)
+ tc = ets->prio_tc[prio];
+
+ netdev_set_prio_tc_map(dev, prio, tc);
+ }
+}
+
+/**
* ixgbe_setup_tc - configure net_device for multiple traffic classes
*
* @netdev: net device to configure
@@ -6633,6 +6658,8 @@
if (tc) {
netdev_set_num_tc(dev, tc);
+ ixgbe_set_prio_tc_map(adapter);
+
adapter->flags |= IXGBE_FLAG_DCB_ENABLED;
adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
@@ -6642,6 +6669,7 @@
}
} else {
netdev_reset_tc(dev);
+
if (adapter->hw.mac.type == ixgbe_mac_82598EB)
adapter->hw.fc.requested_mode = adapter->last_lfc_mode;