| Message ID | 20210626003314.3159402-8-vinicius.gomes@intel.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | ethtool: Add support for frame preemption | expand |
| Context | Check | Description |
|---|---|---|
| netdev/cover_letter | success | Link |
| netdev/fixes_present | success | Link |
| netdev/patch_count | success | Link |
| netdev/tree_selection | success | Clearly marked for net-next |
| netdev/subject_prefix | success | Link |
| netdev/cc_maintainers | warning | 2 maintainers not CCed: davem@davemloft.net jesse.brandeburg@intel.com |
| netdev/source_inline | success | Was 0 now: 0 |
| netdev/verify_signedoff | success | Link |
| netdev/module_param | success | Was 0 now: 0 |
| netdev/build_32bit | success | Errors and warnings before: 0 this patch: 0 |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/verify_fixes | success | Link |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 39 lines checked |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 0 this patch: 0 |
| netdev/header_inline | success | Link |
diff --git a/drivers/net/ethernet/intel/igc/igc.h b/drivers/net/ethernet/intel/igc/igc.h index 9afee4712aeb..68c7262bd172 100644 --- a/drivers/net/ethernet/intel/igc/igc.h +++ b/drivers/net/ethernet/intel/igc/igc.h @@ -92,6 +92,7 @@ struct igc_ring { u8 queue_index; /* logical index of the ring*/ u8 reg_idx; /* physical index of the ring */ bool launchtime_enable; /* true if LaunchTime is enabled */ + bool preemptible; /* true if not express */ u32 start_time; u32 end_time; diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 3f6b6d4543a8..b0981ea0ae63 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -5563,6 +5563,23 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter, return 0; } +static int igc_save_frame_preemption(struct igc_adapter *adapter, + struct tc_preempt_qopt_offload *qopt) +{ + u32 preempt; + int i; + + preempt = qopt->preemptible_queues; + + for (i = 0; i < adapter->num_tx_queues; i++) { + struct igc_ring *ring = adapter->tx_ring[i]; + + ring->preemptible = preempt & BIT(i); + } + + return 0; +} + static int igc_tsn_enable_qbv_scheduling(struct igc_adapter *adapter, struct tc_taprio_qopt_offload *qopt) { @@ -5591,6 +5608,9 @@ static int igc_setup_tc(struct net_device *dev, enum tc_setup_type type, case TC_SETUP_QDISC_ETF: return igc_tsn_enable_launchtime(adapter, type_data); + case TC_SETUP_PREEMPT: + return igc_save_frame_preemption(adapter, type_data); + default: return -EOPNOTSUPP; }
Saves which queues are marked as preemptible, activating frame preemption is done when the user requests it enabled, via ethtool. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> --- drivers/net/ethernet/intel/igc/igc.h | 1 + drivers/net/ethernet/intel/igc/igc_main.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+)