From: Vladimir Oltean vladimir.oltean@nxp.com
[ Upstream commit 2d800bc500fb3fb07a0fb42e2d0a1356fb9e1e8f ]
Inspired from struct flow_cls_offload :: cmd, in order for taprio to be able to report statistics (which is future work), it seems that we need to drill one step further with the ndo_setup_tc(TC_SETUP_QDISC_TAPRIO) multiplexing, and pass the command as part of the common portion of the muxed structure.
Since we already have an "enable" variable in tc_taprio_qopt_offload, refactor all drivers to check for "cmd" instead of "enable", and reject every other command except "replace" and "destroy" - to be future proof.
Signed-off-by: Vladimir Oltean vladimir.oltean@nxp.com Reviewed-by: Horatiu Vultur horatiu.vultur@microchip.com # for lan966x Acked-by: Kurt Kanzenbach kurt@linutronix.de # hellcreek Reviewed-by: Muhammad Husaini Zulkifli muhammad.husaini.zulkifli@intel.com Reviewed-by: Gerhard Engleder gerhard@engleder-embedded.com Signed-off-by: David S. Miller davem@davemloft.net Stable-dep-of: 8046063df887 ("igc: Rename qbv_enable to taprio_offload_enable") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/dsa/hirschmann/hellcreek.c | 14 +++++++++----- drivers/net/dsa/ocelot/felix_vsc9959.c | 4 +++- drivers/net/dsa/sja1105/sja1105_tas.c | 7 +++++-- drivers/net/ethernet/engleder/tsnep_selftests.c | 12 ++++++------ drivers/net/ethernet/engleder/tsnep_tc.c | 4 +++- drivers/net/ethernet/freescale/enetc/enetc_qos.c | 6 +++++- drivers/net/ethernet/intel/igc/igc_main.c | 13 +++++++++++-- .../net/ethernet/microchip/lan966x/lan966x_tc.c | 10 ++++++++-- drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | 7 +++++-- drivers/net/ethernet/ti/am65-cpsw-qos.c | 11 ++++++++--- include/net/pkt_sched.h | 7 ++++++- net/sched/sch_taprio.c | 4 ++-- 12 files changed, 71 insertions(+), 28 deletions(-)
diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c index 595a548bb0a80..af50001ccdd4e 100644 --- a/drivers/net/dsa/hirschmann/hellcreek.c +++ b/drivers/net/dsa/hirschmann/hellcreek.c @@ -1885,13 +1885,17 @@ static int hellcreek_port_setup_tc(struct dsa_switch *ds, int port, case TC_SETUP_QDISC_TAPRIO: { struct tc_taprio_qopt_offload *taprio = type_data;
- if (!hellcreek_validate_schedule(hellcreek, taprio)) - return -EOPNOTSUPP; + switch (taprio->cmd) { + case TAPRIO_CMD_REPLACE: + if (!hellcreek_validate_schedule(hellcreek, taprio)) + return -EOPNOTSUPP;
- if (taprio->enable) return hellcreek_port_set_schedule(ds, port, taprio); - - return hellcreek_port_del_schedule(ds, port); + case TAPRIO_CMD_DESTROY: + return hellcreek_port_del_schedule(ds, port); + default: + return -EOPNOTSUPP; + } } default: return -EOPNOTSUPP; diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c index bd11f9fb95e54..772f8b817390b 100644 --- a/drivers/net/dsa/ocelot/felix_vsc9959.c +++ b/drivers/net/dsa/ocelot/felix_vsc9959.c @@ -1436,7 +1436,7 @@ static int vsc9959_qos_port_tas_set(struct ocelot *ocelot, int port,
mutex_lock(&ocelot->tas_lock);
- if (!taprio->enable) { + if (taprio->cmd == TAPRIO_CMD_DESTROY) { ocelot_port_mqprio(ocelot, port, &taprio->mqprio); ocelot_rmw_rix(ocelot, 0, QSYS_TAG_CONFIG_ENABLE, QSYS_TAG_CONFIG, port); @@ -1448,6 +1448,8 @@ static int vsc9959_qos_port_tas_set(struct ocelot *ocelot, int port,
mutex_unlock(&ocelot->tas_lock); return 0; + } else if (taprio->cmd != TAPRIO_CMD_REPLACE) { + return -EOPNOTSUPP; }
ret = ocelot_port_mqprio(ocelot, port, &taprio->mqprio); diff --git a/drivers/net/dsa/sja1105/sja1105_tas.c b/drivers/net/dsa/sja1105/sja1105_tas.c index e6153848a9509..d7818710bc028 100644 --- a/drivers/net/dsa/sja1105/sja1105_tas.c +++ b/drivers/net/dsa/sja1105/sja1105_tas.c @@ -516,10 +516,11 @@ int sja1105_setup_tc_taprio(struct dsa_switch *ds, int port, /* Can't change an already configured port (must delete qdisc first). * Can't delete the qdisc from an unconfigured port. */ - if (!!tas_data->offload[port] == admin->enable) + if ((!!tas_data->offload[port] && admin->cmd == TAPRIO_CMD_REPLACE) || + (!tas_data->offload[port] && admin->cmd == TAPRIO_CMD_DESTROY)) return -EINVAL;
- if (!admin->enable) { + if (admin->cmd == TAPRIO_CMD_DESTROY) { taprio_offload_free(tas_data->offload[port]); tas_data->offload[port] = NULL;
@@ -528,6 +529,8 @@ int sja1105_setup_tc_taprio(struct dsa_switch *ds, int port, return rc;
return sja1105_static_config_reload(priv, SJA1105_SCHEDULING); + } else if (admin->cmd != TAPRIO_CMD_REPLACE) { + return -EOPNOTSUPP; }
/* The cycle time extension is the amount of time the last cycle from diff --git a/drivers/net/ethernet/engleder/tsnep_selftests.c b/drivers/net/ethernet/engleder/tsnep_selftests.c index 1581d6b222320..8a9145f93147c 100644 --- a/drivers/net/ethernet/engleder/tsnep_selftests.c +++ b/drivers/net/ethernet/engleder/tsnep_selftests.c @@ -329,7 +329,7 @@ static bool disable_taprio(struct tsnep_adapter *adapter) int retval;
memset(&qopt, 0, sizeof(qopt)); - qopt.enable = 0; + qopt.cmd = TAPRIO_CMD_DESTROY; retval = tsnep_tc_setup(adapter->netdev, TC_SETUP_QDISC_TAPRIO, &qopt); if (retval) return false; @@ -360,7 +360,7 @@ static bool tsnep_test_taprio(struct tsnep_adapter *adapter) for (i = 0; i < 255; i++) qopt->entries[i].command = TC_TAPRIO_CMD_SET_GATES;
- qopt->enable = 1; + qopt->cmd = TAPRIO_CMD_REPLACE; qopt->base_time = ktime_set(0, 0); qopt->cycle_time = 1500000; qopt->cycle_time_extension = 0; @@ -382,7 +382,7 @@ static bool tsnep_test_taprio(struct tsnep_adapter *adapter) if (!run_taprio(adapter, qopt, 100)) goto failed;
- qopt->enable = 1; + qopt->cmd = TAPRIO_CMD_REPLACE; qopt->base_time = ktime_set(0, 0); qopt->cycle_time = 411854; qopt->cycle_time_extension = 0; @@ -406,7 +406,7 @@ static bool tsnep_test_taprio(struct tsnep_adapter *adapter) if (!run_taprio(adapter, qopt, 100)) goto failed;
- qopt->enable = 1; + qopt->cmd = TAPRIO_CMD_REPLACE; qopt->base_time = ktime_set(0, 0); delay_base_time(adapter, qopt, 12); qopt->cycle_time = 125000; @@ -457,7 +457,7 @@ static bool tsnep_test_taprio_change(struct tsnep_adapter *adapter) for (i = 0; i < 255; i++) qopt->entries[i].command = TC_TAPRIO_CMD_SET_GATES;
- qopt->enable = 1; + qopt->cmd = TAPRIO_CMD_REPLACE; qopt->base_time = ktime_set(0, 0); qopt->cycle_time = 100000; qopt->cycle_time_extension = 0; @@ -610,7 +610,7 @@ static bool tsnep_test_taprio_extension(struct tsnep_adapter *adapter) for (i = 0; i < 255; i++) qopt->entries[i].command = TC_TAPRIO_CMD_SET_GATES;
- qopt->enable = 1; + qopt->cmd = TAPRIO_CMD_REPLACE; qopt->base_time = ktime_set(0, 0); qopt->cycle_time = 100000; qopt->cycle_time_extension = 50000; diff --git a/drivers/net/ethernet/engleder/tsnep_tc.c b/drivers/net/ethernet/engleder/tsnep_tc.c index d083e6684f120..745b191a55402 100644 --- a/drivers/net/ethernet/engleder/tsnep_tc.c +++ b/drivers/net/ethernet/engleder/tsnep_tc.c @@ -325,7 +325,7 @@ static int tsnep_taprio(struct tsnep_adapter *adapter, if (!adapter->gate_control) return -EOPNOTSUPP;
- if (!qopt->enable) { + if (qopt->cmd == TAPRIO_CMD_DESTROY) { /* disable gate control if active */ mutex_lock(&adapter->gate_control_lock);
@@ -337,6 +337,8 @@ static int tsnep_taprio(struct tsnep_adapter *adapter, mutex_unlock(&adapter->gate_control_lock);
return 0; + } else if (qopt->cmd != TAPRIO_CMD_REPLACE) { + return -EOPNOTSUPP; }
retval = tsnep_validate_gcl(qopt); diff --git a/drivers/net/ethernet/freescale/enetc/enetc_qos.c b/drivers/net/ethernet/freescale/enetc/enetc_qos.c index 126007ab70f61..dfec50106106f 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_qos.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_qos.c @@ -65,7 +65,7 @@ static int enetc_setup_taprio(struct net_device *ndev, gcl_len = admin_conf->num_entries;
tge = enetc_rd(hw, ENETC_PTGCR); - if (!admin_conf->enable) { + if (admin_conf->cmd == TAPRIO_CMD_DESTROY) { enetc_wr(hw, ENETC_PTGCR, tge & ~ENETC_PTGCR_TGE); enetc_reset_ptcmsdur(hw);
@@ -138,6 +138,10 @@ int enetc_setup_tc_taprio(struct net_device *ndev, void *type_data) struct enetc_ndev_priv *priv = netdev_priv(ndev); int err, i;
+ if (taprio->cmd != TAPRIO_CMD_REPLACE && + taprio->cmd != TAPRIO_CMD_DESTROY) + return -EOPNOTSUPP; + /* TSD and Qbv are mutually exclusive in hardware */ for (i = 0; i < priv->num_tx_rings; i++) if (priv->tx_ring[i]->tsd_enable) diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index e7bd2c60ee383..ae986e44a4718 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -6117,9 +6117,18 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter, size_t n; int i;
- adapter->qbv_enable = qopt->enable; + switch (qopt->cmd) { + case TAPRIO_CMD_REPLACE: + adapter->qbv_enable = true; + break; + case TAPRIO_CMD_DESTROY: + adapter->qbv_enable = false; + break; + default: + return -EOPNOTSUPP; + }
- if (!qopt->enable) + if (!adapter->qbv_enable) return igc_tsn_clear_schedule(adapter);
if (qopt->base_time < 0) diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_tc.c b/drivers/net/ethernet/microchip/lan966x/lan966x_tc.c index cf0cc7562d042..ee652f2d23595 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_tc.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_tc.c @@ -21,8 +21,14 @@ static int lan966x_tc_setup_qdisc_mqprio(struct lan966x_port *port, static int lan966x_tc_setup_qdisc_taprio(struct lan966x_port *port, struct tc_taprio_qopt_offload *taprio) { - return taprio->enable ? lan966x_taprio_add(port, taprio) : - lan966x_taprio_del(port); + switch (taprio->cmd) { + case TAPRIO_CMD_REPLACE: + return lan966x_taprio_add(port, taprio); + case TAPRIO_CMD_DESTROY: + return lan966x_taprio_del(port); + default: + return -EOPNOTSUPP; + } }
static int lan966x_tc_setup_qdisc_tbf(struct lan966x_port *port, diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c index 9d55226479b4a..ac41ef4cbd2f0 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c @@ -966,8 +966,11 @@ static int tc_setup_taprio(struct stmmac_priv *priv, return -EOPNOTSUPP; }
- if (!qopt->enable) + if (qopt->cmd == TAPRIO_CMD_DESTROY) goto disable; + else if (qopt->cmd != TAPRIO_CMD_REPLACE) + return -EOPNOTSUPP; + if (qopt->num_entries >= dep) return -EINVAL; if (!qopt->cycle_time) @@ -988,7 +991,7 @@ static int tc_setup_taprio(struct stmmac_priv *priv,
mutex_lock(&priv->plat->est->lock); priv->plat->est->gcl_size = size; - priv->plat->est->enable = qopt->enable; + priv->plat->est->enable = qopt->cmd == TAPRIO_CMD_REPLACE; mutex_unlock(&priv->plat->est->lock);
for (i = 0; i < size; i++) { diff --git a/drivers/net/ethernet/ti/am65-cpsw-qos.c b/drivers/net/ethernet/ti/am65-cpsw-qos.c index 3a908db6e5b22..eced87fa261c9 100644 --- a/drivers/net/ethernet/ti/am65-cpsw-qos.c +++ b/drivers/net/ethernet/ti/am65-cpsw-qos.c @@ -450,7 +450,7 @@ static int am65_cpsw_configure_taprio(struct net_device *ndev,
am65_cpsw_est_update_state(ndev);
- if (!est_new->taprio.enable) { + if (est_new->taprio.cmd == TAPRIO_CMD_DESTROY) { am65_cpsw_stop_est(ndev); return ret; } @@ -476,7 +476,7 @@ static int am65_cpsw_configure_taprio(struct net_device *ndev, am65_cpsw_est_set_sched_list(ndev, est_new); am65_cpsw_port_est_assign_buf_num(ndev, est_new->buf);
- am65_cpsw_est_set(ndev, est_new->taprio.enable); + am65_cpsw_est_set(ndev, est_new->taprio.cmd == TAPRIO_CMD_REPLACE);
if (tact == TACT_PROG) { ret = am65_cpsw_timer_set(ndev, est_new); @@ -520,7 +520,7 @@ static int am65_cpsw_set_taprio(struct net_device *ndev, void *type_data) am65_cpsw_cp_taprio(taprio, &est_new->taprio); ret = am65_cpsw_configure_taprio(ndev, est_new); if (!ret) { - if (taprio->enable) { + if (taprio->cmd == TAPRIO_CMD_REPLACE) { devm_kfree(&ndev->dev, port->qos.est_admin);
port->qos.est_admin = est_new; @@ -564,8 +564,13 @@ static void am65_cpsw_est_link_up(struct net_device *ndev, int link_speed) static int am65_cpsw_setup_taprio(struct net_device *ndev, void *type_data) { struct am65_cpsw_port *port = am65_ndev_to_port(ndev); + struct tc_taprio_qopt_offload *taprio = type_data; struct am65_cpsw_common *common = port->common;
+ if (taprio->cmd != TAPRIO_CMD_REPLACE && + taprio->cmd != TAPRIO_CMD_DESTROY) + return -EOPNOTSUPP; + if (!IS_ENABLED(CONFIG_TI_AM65_CPSW_TAS)) return -ENODEV;
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h index 5722931d83d43..7dba1c3a7b801 100644 --- a/include/net/pkt_sched.h +++ b/include/net/pkt_sched.h @@ -187,6 +187,11 @@ struct tc_taprio_caps { bool broken_mqprio:1; };
+enum tc_taprio_qopt_cmd { + TAPRIO_CMD_REPLACE, + TAPRIO_CMD_DESTROY, +}; + struct tc_taprio_sched_entry { u8 command; /* TC_TAPRIO_CMD_* */
@@ -198,7 +203,7 @@ struct tc_taprio_sched_entry { struct tc_taprio_qopt_offload { struct tc_mqprio_qopt_offload mqprio; struct netlink_ext_ack *extack; - u8 enable; + enum tc_taprio_qopt_cmd cmd; ktime_t base_time; u64 cycle_time; u64 cycle_time_extension; diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c index cf0e61ed92253..4caf80ddc6721 100644 --- a/net/sched/sch_taprio.c +++ b/net/sched/sch_taprio.c @@ -1527,7 +1527,7 @@ static int taprio_enable_offload(struct net_device *dev, "Not enough memory for enabling offload mode"); return -ENOMEM; } - offload->enable = 1; + offload->cmd = TAPRIO_CMD_REPLACE; offload->extack = extack; mqprio_qopt_reconstruct(dev, &offload->mqprio.qopt); offload->mqprio.extack = extack; @@ -1575,7 +1575,7 @@ static int taprio_disable_offload(struct net_device *dev, "Not enough memory to disable offload mode"); return -ENOMEM; } - offload->enable = 0; + offload->cmd = TAPRIO_CMD_DESTROY;
err = ops->ndo_setup_tc(dev, TC_SETUP_QDISC_TAPRIO, offload); if (err < 0) {