diff options
Diffstat (limited to 'target/linux/mvebu/patches-5.15/701-v5.14-net-ethernet-marvell-mvnetaMQPrio.patch')
| -rw-r--r-- | target/linux/mvebu/patches-5.15/701-v5.14-net-ethernet-marvell-mvnetaMQPrio.patch | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-5.15/701-v5.14-net-ethernet-marvell-mvnetaMQPrio.patch b/target/linux/mvebu/patches-5.15/701-v5.14-net-ethernet-marvell-mvnetaMQPrio.patch new file mode 100644 index 0000000000..36d4942f8b --- /dev/null +++ b/target/linux/mvebu/patches-5.15/701-v5.14-net-ethernet-marvell-mvnetaMQPrio.patch @@ -0,0 +1,109 @@ +From 4906887a8ae5f1296f8079bcf4565a6092a8e402 Mon Sep 17 00:00:00 2001 +From: Maxime Chevallier <maxime.chevallier@bootlin.com> +Date: Tue, 16 Feb 2021 10:25:36 +0100 +Subject: net: mvneta: Implement mqprio support + +Implement a basic MQPrio support, inserting rules in RX that translate +the TC to prio mapping into vlan prio to queues. + +The TX logic stays the same as when we don't offload the qdisc. + +Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/marvell/mvneta.c | 61 +++++++++++++++++++++++++++++++++++ + 1 file changed, 61 insertions(+) + +(limited to 'drivers/net/ethernet/marvell/mvneta.c') + +--- a/drivers/net/ethernet/marvell/mvneta.c ++++ b/drivers/net/ethernet/marvell/mvneta.c +@@ -102,6 +102,8 @@ + #define MVNETA_TX_NO_DATA_SWAP BIT(5) + #define MVNETA_DESC_SWAP BIT(6) + #define MVNETA_TX_BRST_SZ_MASK(burst) ((burst) << 22) ++#define MVNETA_VLAN_PRIO_TO_RXQ 0x2440 ++#define MVNETA_VLAN_PRIO_RXQ_MAP(prio, rxq) ((rxq) << ((prio) * 3)) + #define MVNETA_PORT_STATUS 0x2444 + #define MVNETA_TX_IN_PRGRS BIT(0) + #define MVNETA_TX_FIFO_EMPTY BIT(8) +@@ -490,6 +492,7 @@ struct mvneta_port { + u8 mcast_count[256]; + u16 tx_ring_size; + u16 rx_ring_size; ++ u8 prio_tc_map[8]; + + phy_interface_t phy_interface; + struct device_node *dn; +@@ -4913,6 +4916,63 @@ static u16 mvneta_select_queue(struct ne + } + #endif + ++static void mvneta_clear_rx_prio_map(struct mvneta_port *pp) ++{ ++ mvreg_write(pp, MVNETA_VLAN_PRIO_TO_RXQ, 0); ++} ++ ++static void mvneta_setup_rx_prio_map(struct mvneta_port *pp) ++{ ++ u32 val = 0; ++ int i; ++ ++ for (i = 0; i < rxq_number; i++) ++ val |= MVNETA_VLAN_PRIO_RXQ_MAP(i, pp->prio_tc_map[i]); ++ ++ mvreg_write(pp, MVNETA_VLAN_PRIO_TO_RXQ, val); ++} ++ ++static int mvneta_setup_mqprio(struct net_device *dev, ++ struct tc_mqprio_qopt *qopt) ++{ ++ struct mvneta_port *pp = netdev_priv(dev); ++ u8 num_tc; ++ int i; ++ ++ qopt->hw = TC_MQPRIO_HW_OFFLOAD_TCS; ++ num_tc = qopt->num_tc; ++ ++ if (num_tc > rxq_number) ++ return -EINVAL; ++ ++ if (!num_tc) { ++ mvneta_clear_rx_prio_map(pp); ++ netdev_reset_tc(dev); ++ return 0; ++ } ++ ++ memcpy(pp->prio_tc_map, qopt->prio_tc_map, sizeof(pp->prio_tc_map)); ++ ++ mvneta_setup_rx_prio_map(pp); ++ ++ netdev_set_num_tc(dev, qopt->num_tc); ++ for (i = 0; i < qopt->num_tc; i++) ++ netdev_set_tc_queue(dev, i, qopt->count[i], qopt->offset[i]); ++ ++ return 0; ++} ++ ++static int mvneta_setup_tc(struct net_device *dev, enum tc_setup_type type, ++ void *type_data) ++{ ++ switch (type) { ++ case TC_SETUP_QDISC_MQPRIO: ++ return mvneta_setup_mqprio(dev, type_data); ++ default: ++ return -EOPNOTSUPP; ++ } ++} ++ + static const struct net_device_ops mvneta_netdev_ops = { + .ndo_open = mvneta_open, + .ndo_stop = mvneta_stop, +@@ -4928,6 +4988,7 @@ static const struct net_device_ops mvnet + #endif + .ndo_bpf = mvneta_xdp, + .ndo_xdp_xmit = mvneta_xdp_xmit, ++ .ndo_setup_tc = mvneta_setup_tc, + }; + + static const struct ethtool_ops mvneta_eth_tool_ops = { |