diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2014-09-20 19:50:42 -0400 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2014-09-23 03:59:19 -0700 |
| commit | aa3ac822689f5c4d8961a8707edba9b6bf4631a3 (patch) | |
| tree | 49955a51b31bc37ba6bd6d6df9a94d88b627075c /drivers/net/ethernet/intel/fm10k/fm10k_netdev.c | |
| parent | 19ae1b3fb99c2d5a5a7540c296c4cb4df3e7f552 (diff) | |
fm10k: Add support for multiple queues
This patch takes the driver from supporting a single queue to supporting
multiple queues. The upper queue limit for the PF is 128 queues and the
upper limit for the VF is (128 / num_vfs) rounded down to nearest power of 2.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/fm10k/fm10k_netdev.c')
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_netdev.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c index b9b1459b4697..2cda9f99edc3 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c @@ -973,6 +973,46 @@ static struct rtnl_link_stats64 *fm10k_get_stats64(struct net_device *netdev, return stats; } +int fm10k_setup_tc(struct net_device *dev, u8 tc) +{ + struct fm10k_intfc *interface = netdev_priv(dev); + + /* Currently only the PF supports priority classes */ + if (tc && (interface->hw.mac.type != fm10k_mac_pf)) + return -EINVAL; + + /* Hardware supports up to 8 traffic classes */ + if (tc > 8) + return -EINVAL; + + /* Hardware has to reinitialize queues to match packet + * buffer alignment. Unfortunately, the hardware is not + * flexible enough to do this dynamically. + */ + if (netif_running(dev)) + fm10k_close(dev); + + fm10k_mbx_free_irq(interface); + + fm10k_clear_queueing_scheme(interface); + + /* we expect the prio_tc map to be repopulated later */ + netdev_reset_tc(dev); + netdev_set_num_tc(dev, tc); + + fm10k_init_queueing_scheme(interface); + + fm10k_mbx_request_irq(interface); + + if (netif_running(dev)) + fm10k_open(dev); + + /* flag to indicate SWPRI has yet to be updated */ + interface->flags |= FM10K_FLAG_SWPRI_CONFIG; + + return 0; +} + static const struct net_device_ops fm10k_netdev_ops = { .ndo_open = fm10k_open, .ndo_stop = fm10k_close, @@ -985,6 +1025,7 @@ static const struct net_device_ops fm10k_netdev_ops = { .ndo_vlan_rx_kill_vid = fm10k_vlan_rx_kill_vid, .ndo_set_rx_mode = fm10k_set_rx_mode, .ndo_get_stats64 = fm10k_get_stats64, + .ndo_setup_tc = fm10k_setup_tc, }; #define DEFAULT_DEBUG_LEVEL_SHIFT 3 |