diff options
| author |   Po Liu <po.liu@nxp.com> | 2019-11-15 03:33:41 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-11-16 12:49:16 -0800 |
| commit | 2e47cb415f0a0ec6555d71598361e90f8c144fb2 (patch) | |
| tree | 4817e8077bf02a9c335deba24ef1daa764bddad7 /drivers/net/ethernet/freescale/enetc/enetc_qos.c | |
| parent | enetc: Configure the Time-Aware Scheduler via tc-taprio offload (diff) | |
| download | linux-dev-2e47cb415f0a0ec6555d71598361e90f8c144fb2.tar.xz linux-dev-2e47cb415f0a0ec6555d71598361e90f8c144fb2.zip | |
enetc: update TSN Qbv PSPEED set according to adjust link speed
ENETC has a register PSPEED to indicate the link speed of hardware.
It is need to update accordingly. PSPEED field needs to be updated
with the port speed for QBV scheduling purposes. Or else there is
chance for gate slot not free by frame taking the MAC if PSPEED and
phy speed not match. So update PSPEED when link adjust. This is
implement by the adjust_link.
Signed-off-by: Po Liu <Po.Liu@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_qos.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_qos.c b/drivers/net/ethernet/freescale/enetc/enetc_qos.c index 84c2ab98fae9..66a3da61ca16 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_qos.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_qos.c @@ -11,6 +11,40 @@ static u16 enetc_get_max_gcl_len(struct enetc_hw *hw) & ENETC_QBV_MAX_GCL_LEN_MASK; } +void enetc_sched_speed_set(struct net_device *ndev) +{ + struct enetc_ndev_priv *priv = netdev_priv(ndev); + struct phy_device *phydev = ndev->phydev; + u32 old_speed = priv->speed; + u32 speed, pspeed; + + if (phydev->speed == old_speed) + return; + + speed = phydev->speed; + switch (speed) { + case SPEED_1000: + pspeed = ENETC_PMR_PSPEED_1000M; + break; + case SPEED_2500: + pspeed = ENETC_PMR_PSPEED_2500M; + break; + case SPEED_100: + pspeed = ENETC_PMR_PSPEED_100M; + break; + case SPEED_10: + default: + pspeed = ENETC_PMR_PSPEED_10M; + netdev_err(ndev, "Qbv PSPEED set speed link down.\n"); + } + + priv->speed = speed; + enetc_port_wr(&priv->si->hw, ENETC_PMR, + (enetc_port_rd(&priv->si->hw, ENETC_PMR) + & (~ENETC_PMR_PSPEED_MASK)) + | pspeed); +} + static int enetc_setup_taprio(struct net_device *ndev, struct tc_taprio_qopt_offload *admin_conf) { |