mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 06:33:41 +00:00
4580516bfb
Implement a basic MQPrio support, inserting rules in RX that translate the TC to prio mapping into vlan prio to queues. Signed-off-by: Kabuli Chana <newtownBuild@gmail.com>
110 lines
3.1 KiB
Diff
110 lines
3.1 KiB
Diff
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 = {
|