diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-09-28 12:52:04 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-09-30 04:52:06 +0300 |
| commit | dfc7175de3b0a01dbc9d8a16f8417f19fa2ba4cb (patch) | |
| tree | b952b378c7f66800c3f3e60d9a4aaa314d6502ee /drivers/net/ethernet/freescale/enetc/enetc_qos.c | |
| parent | 9a2ea26d97a9acbb909c5ada0cfd09cea16a32ca (diff) | |
| download | linux-dfc7175de3b0a01dbc9d8a16f8417f19fa2ba4cb.tar.xz | |
net: enetc: offload per-tc max SDU from tc-taprio
The driver currently sets the PTCMSDUR register statically to the max
MTU supported by the interface. Keep this logic if tc-taprio is absent
or if the max_sdu for a traffic class is 0, and follow the requested max
SDU size otherwise.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/freescale/enetc/enetc_qos.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_qos.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_qos.c b/drivers/net/ethernet/freescale/enetc/enetc_qos.c index ee28cb62afe8..e6416332ec79 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_qos.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_qos.c @@ -7,6 +7,7 @@ #include <linux/math64.h> #include <linux/refcount.h> #include <net/pkt_cls.h> +#include <net/pkt_sched.h> #include <net/tc_act/tc_gate.h> static u16 enetc_get_max_gcl_len(struct enetc_hw *hw) @@ -67,6 +68,7 @@ static int enetc_setup_taprio(struct net_device *ndev, tge = enetc_rd(hw, ENETC_PTGCR); if (!admin_conf->enable) { enetc_wr(hw, ENETC_PTGCR, tge & ~ENETC_PTGCR_TGE); + enetc_reset_ptcmsdur(hw); priv->active_offloads &= ~ENETC_F_QBV; @@ -122,10 +124,13 @@ static int enetc_setup_taprio(struct net_device *ndev, enetc_cbd_free_data_mem(priv->si, data_size, tmp, &dma); - if (!err) - priv->active_offloads |= ENETC_F_QBV; + if (err) + return err; - return err; + enetc_set_ptcmsdur(hw, admin_conf->max_sdu); + priv->active_offloads |= ENETC_F_QBV; + + return 0; } int enetc_setup_tc_taprio(struct net_device *ndev, void *type_data) @@ -1594,3 +1599,23 @@ int enetc_setup_tc_psfp(struct net_device *ndev, void *type_data) return 0; } + +int enetc_qos_query_caps(struct net_device *ndev, void *type_data) +{ + struct enetc_ndev_priv *priv = netdev_priv(ndev); + struct tc_query_caps_base *base = type_data; + struct enetc_si *si = priv->si; + + switch (base->type) { + case TC_SETUP_QDISC_TAPRIO: { + struct tc_taprio_caps *caps = base->caps; + + if (si->hw_features & ENETC_SI_F_QBV) + caps->supports_queue_max_sdu = true; + + return 0; + } + default: + return -EOPNOTSUPP; + } +} |