This series is intended to allow cpsw driver to use cpdma ability of h/w shaper to send/receive data with up to 8 tx and 8 rx queues. This series doesn't contain interface to configure h/w shaper itself, it contains only multi-queue support part and ability to configure number of tx/rx queues with ethtool, it also doesn't contain mapping of input traffic to rx queues, as it can depend on usage and requires separate interface for setup. Default shaper mode - priority mode. The h/w shaper configuration will be added with separate patch series. This series doesn't affect on net throughput. Tested on: am572x-idk, 1Gbps link am335-boneblack, 100Mbps link. A simple example for splitting traffic on queues: #check how many queues are supported and active: $ ethtool -l eth0 #increase number of active rx and tx queues, #by default 1 rx and 1 tx queue #can be set any combination of 0 < rx <= 8 and 0 < tx <= 8 $ ethtool -L eth0 rx 8 tx 8 #set multi-queue-aware queuing discipline $ tc qdisc add dev eth0 root handle 1: multiq #send packets with ip 172.22.39.12 to queue #5 which can be #prioritized or throughput limited by h/w shaper. $ tc filter add dev eth0 parent 1: protocol ip prio 1 u32 \ match ip dst 172.22.39.12 \ action skbedit queue_mapping 5 Based on: net-next/master V3: https://lkml.org/lkml/2016/8/15/788 Since v3: -changed arg to priv in fill_rx_channels in net: ethernet: ti: davinci_cpdma: split descs num between all channels - added more comments to cpsw_set_channels Since v2: - added new patch to avoid warn while ctrl stop net: ethernet: ti: cpsw: add ethtool channels support - enable ctrl in case at least one interface is running Since v1: - removed cpdam_check_free_desc function - remove pm_runtime calls as they are used in begin/complete ethtool calls now - removed change of driver version. it can be done later - corrected setup of channels for dual_emac mode with ethtool Ivan Khoronzhuk (5): net: ethernet: ti: davinci_cpdma: split descs num between all channels net: ethernet: ti: davinci_cpdma: fix locking while ctrl_stop net: ethernet: ti: cpsw: add multi queue support net: ethernet: ti: davinci_cpdma: move cpdma channel struct macroses to internals net: ethernet: ti: cpsw: add ethtool channels support drivers/net/ethernet/ti/cpsw.c | 496 +++++++++++++++++++++++++------- drivers/net/ethernet/ti/davinci_cpdma.c | 73 ++++- drivers/net/ethernet/ti/davinci_cpdma.h | 13 +- drivers/net/ethernet/ti/davinci_emac.c | 8 +- 4 files changed, 466 insertions(+), 124 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html