diff options
| author | Kiran Patil <kiran.patil@intel.com> | 2021-10-15 16:35:16 -0700 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-10-20 15:58:11 -0700 |
| commit | fbc7b27af0f9fb181811424e29caf6825594a841 (patch) | |
| tree | 221182617e2c606bcef54a329fc3c588ee3e0799 /drivers/net/ethernet/intel/ice/ice_ethtool.c | |
| parent | 0754d65bd4be5bb7392aa59339a290c80346a93c (diff) | |
ice: enable ndo_setup_tc support for mqprio_qdisc
Add support in driver for TC_QDISC_SETUP_MQPRIO. This support
enables instantiation of channels in HW using existing MQPRIO
infrastructure which is extended to be offloadable. This
provides a mechanism to configure dedicated set of queues for
each TC.
Configuring channels using "tc mqprio":
--------------------------------------
tc qdisc add dev <ethX> root mqprio num_tc 3 map 0 1 2 \
queues 4@0 4@4 4@8 hw 1 mode channel
Above command configures 3 TCs having 4 queues each. "hw 1 mode channel"
implies offload of channel configuration to HW. When driver processes
configuration received via "ndo_setup_tc: QDISC_SETUP_MQPRIO", each
TC maps to HW VSI with specified queues.
User can optionally specify bandwidth min and max rate limit per TC
(see example below). If shaper params like min and/or max bandwidth
rate limit are specified, driver configures VSI specific rate limiter
in HW.
Configuring channels and bandwidth shaper parameters using "tc mqprio":
----------------------------------------------------------------
tc qdisc add dev <ethX> root mqprio \
num_tc 4 map 0 1 2 3 queues 4@0 4@4 4@8 4@12 hw 1 mode channel \
shaper bw_rlimit min_rate 1Gbit 2Gbit 3Gbit 4Gbit \
max_rate 4Gbit 5Gbit 6Gbit 7Gbit
Command to view configured TCs:
-----------------------------
tc qdisc show dev <ethX>
Deleting TCs:
------------
tc qdisc del dev <ethX> root mqprio
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_ethtool.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index 8b3eef6632e9..cfe96a127ed4 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -3194,6 +3194,11 @@ ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key, return -EIO; } + if (ice_is_adq_active(pf)) { + netdev_err(netdev, "Cannot change RSS params with ADQ configured.\n"); + return -EOPNOTSUPP; + } + if (key) { if (!vsi->rss_hkey_user) { vsi->rss_hkey_user = @@ -3404,6 +3409,11 @@ static int ice_set_channels(struct net_device *dev, struct ethtool_channels *ch) if (ch->other_count != (test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1U : 0U)) return -EINVAL; + if (ice_is_adq_active(pf)) { + netdev_err(dev, "Cannot set channels with ADQ configured.\n"); + return -EOPNOTSUPP; + } + if (test_bit(ICE_FLAG_FD_ENA, pf->flags) && pf->hw.fdir_active_fltr) { netdev_err(dev, "Cannot set channels when Flow Director filters are active\n"); return -EOPNOTSUPP; |