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90bc21aaef
This patch adds MQPRIO Qdisc offload in full 'channel' mode which allows not only setting up pri:tc mapping, but also configuring TX shapers on external port FIFOs. The K3 CPSW MQPRIO Qdisc offload is expected to work with VLAN/priority tagged packets. Non-tagged packets have to be mapped only to TC0. - TX traffic classes must be rated starting from TC that has highest priority and with no gaps - Traffic classes are used starting from 0, that has highest priority - min_rate defines Committed Information Rate (guaranteed) - max_rate defines Excess Information Rate (non guaranteed) and offloaded as (max_rate[i] - tcX_min_rate[i]) - VLAN/priority tagged packets mapped to TC0 will exit switch with VLAN tag priority 0 The configuration example: ethtool -L eth1 tx 5 ethtool --set-priv-flags eth1 p0-rx-ptype-rrobin off tc qdisc add dev eth1 parent root handle 100: mqprio num_tc 3 \ map 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 \ queues 1@0 1@1 1@2 hw 1 mode channel \ shaper bw_rlimit min_rate 0 100mbit 200mbit max_rate 0 101mbit 202mbit tc qdisc replace dev eth2 handle 100: parent root mqprio num_tc 1 \ map 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 queues 1@0 hw 1 ip link add link eth1 name eth1.100 type vlan id 100 ip link set eth1.100 type vlan egress 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7 In the above example two ports share the same TX CPPI queue 0 for low priority traffic. 3 traffic classes are defined for eth1 and mapped to: TC0 - low priority, TX CPPI queue 0 -> ext Port 1 fifo0, no rate limit TC1 - prio 2, TX CPPI queue 1 -> ext Port 1 fifo1, CIR=100Mbit/s, EIR=1Mbit/s TC2 - prio 3, TX CPPI queue 2 -> ext Port 1 fifo2, CIR=200Mbit/s, EIR=2Mbit/s Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Roger Quadros <rogerq@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| icssg | ||
| am65-cpsw-ethtool.c | ||
| am65-cpsw-nuss.c | ||
| am65-cpsw-nuss.h | ||
| am65-cpsw-qos.c | ||
| am65-cpsw-qos.h | ||
| am65-cpsw-switchdev.c | ||
| am65-cpsw-switchdev.h | ||
| am65-cpts.c | ||
| am65-cpts.h | ||
| cpmac.c | ||
| cpsw-common.c | ||
| cpsw-phy-sel.c | ||
| cpsw.c | ||
| cpsw.h | ||
| cpsw_ale.c | ||
| cpsw_ale.h | ||
| cpsw_ethtool.c | ||
| cpsw_new.c | ||
| cpsw_priv.c | ||
| cpsw_priv.h | ||
| cpsw_sl.c | ||
| cpsw_sl.h | ||
| cpsw_switchdev.c | ||
| cpsw_switchdev.h | ||
| cpts.c | ||
| cpts.h | ||
| davinci_cpdma.c | ||
| davinci_cpdma.h | ||
| davinci_emac.c | ||
| davinci_mdio.c | ||
| k3-cppi-desc-pool.c | ||
| k3-cppi-desc-pool.h | ||
| Kconfig | ||
| Makefile | ||
| netcp.h | ||
| netcp_core.c | ||
| netcp_ethss.c | ||
| netcp_sgmii.c | ||
| netcp_xgbepcsr.c | ||
| tlan.c | ||
| tlan.h | ||