diff options
| author |   John Fastabend <john.r.fastabend@intel.com> | 2011-02-23 05:58:03 +0000 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-03-12 04:11:53 -0800 |
| commit | 24095aa347a32673cf220fc0bd0b78d28ba0a69e (patch) | |
| tree | 4b7a3e37c581de6c8282b0ec0c6e2627cce32419 | |
| parent | ixgbe: DCB, use multiple Tx rings per traffic class (diff) | |
| download | linux-dev-24095aa347a32673cf220fc0bd0b78d28ba0a69e.tar.xz linux-dev-24095aa347a32673cf220fc0bd0b78d28ba0a69e.zip | |
ixgbe: enable ndo_tc_setup
This patch adds the ndo_tc_setup to ixgbe. By default we set
the device to use strict priority.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain.@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 3694226462da..3ce0f4f956df 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -4606,7 +4606,10 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) if (!tc) { netdev_reset_tc(dev); } else { - if (netdev_set_num_tc(dev, tc)) + struct ixgbe_adapter *adapter = netdev_priv(dev); + + /* Hardware supports up to 8 traffic classes */ + if (tc > MAX_TRAFFIC_CLASS || netdev_set_num_tc(dev, tc)) return -EINVAL; /* Partition Tx queues evenly amongst traffic classes */ @@ -4616,6 +4619,22 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) netdev_set_tc_queue(dev, i, q, offset); offset += q; } + + /* This enables multiple traffic class support in the hardware + * which defaults to strict priority transmission by default. + * If traffic classes are already enabled perhaps through DCB + * code path then existing configuration will be used. + */ + if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED) && + dev->dcbnl_ops && dev->dcbnl_ops->setdcbx) { + struct ieee_ets ets = { + .prio_tc = {0, 1, 2, 3, 4, 5, 6, 7}, + }; + u8 mode = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE; + + dev->dcbnl_ops->setdcbx(dev, mode); + dev->dcbnl_ops->ieee_setets(dev, &ets); + } } return 0; } @@ -7022,6 +7041,9 @@ static const struct net_device_ops ixgbe_netdev_ops = { .ndo_set_vf_tx_rate = ixgbe_ndo_set_vf_bw, .ndo_get_vf_config = ixgbe_ndo_get_vf_config, .ndo_get_stats64 = ixgbe_get_stats64, +#ifdef CONFIG_IXGBE_DCB + .ndo_setup_tc = ixgbe_setup_tc, +#endif #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = ixgbe_netpoll, #endif |