From mboxrd@z Thu Jan 1 00:00:00 1970 From: Amir Vadai Subject: [PATCH V2 0/7] net/mlx4_en: DCB QoS support Date: Mon, 26 Mar 2012 11:07:47 +0200 Message-ID: <1332752874-8086-1-git-send-email-amirv@mellanox.com> Cc: netdev@vger.kernel.org, Roland Dreier , Yevgeny Petrilin , Oren Duer , Amir Vadai , Amir Vadai , John Fastabend , Eric Dumazet To: "David S. Miller" Return-path: Received: from eu1sys200aog117.obsmtp.com ([207.126.144.143]:36412 "HELO eu1sys200aog117.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1753254Ab2CZJIS (ORCPT ); Mon, 26 Mar 2012 05:08:18 -0400 Sender: netdev-owner@vger.kernel.org List-ID: DCBX version 802.1qaz is supported. User Priority (UP) is set in QP context instead of in WQE (QP Work Queue Element), which means that all traffic from a queue will have the same UP. UP is also set for untagged traffic to be able to classify such traffic too. Mapping from sk_prio to User Priority is done by sch_mqprio mapping. Although confusingly sch_mqprio maps sk_prio to something called TC, it is not related to DCBX's TC, and is interpreted by mlx4_en driver as UP. CC: John Fastabend CC: Eric Dumazet --- Changes from V1: - Patch 1/7 - Force user priority by QP attribute - removed unneeded comment - Patch 2/7 - set port QoS attributes - ratelimit is given in Mbps instead of 100Mbps units. - Patch 3/7 - DCB QoS support - Split mlx4_en_config_port_scheduler from mlx4_en_dcbnl_ieee_setets - enable setting ratelimit only, without setting up to tc mapping - Patch 4/7 - Set max rate-limit for a TC - Rewritten patch according to comment from Eric D. - setting ratelimit is through sysfs files: /sys/class/net//ratelimit/tc0 /sys/class/net//ratelimit/tc1 ... /sys/class/net//ratelimit/tc7 - Patch 5/7 - sk_prio <=> UP for untagged traffic - Using skb_tx_hash for queue selection of untagged traffic - Added Patch 6/7 - export symbol ip_tos2prio - Fixed patch according to comment from Eric D. - Patch 7/7 - TOS <=> UP mapping for IBoE - No need to clone code from route.c anymore - removed it Changes from V0: - Removed patches 6 and 7 who deal with the interaction between the kernel HW QoS constructs to the queue selection logic are still under discussion with John and some changes might be needed there. Amir Vadai (7): net/mlx4_en: Force user priority by QP attribute net/mlx4_core: set port QoS attributes net/mlx4_en: DCB QoS support net/mlx4_en: Set max rate-limit for a TC net/mlx4_en: sk_prio <=> UP for untagged traffic net/route: export symbol ip_tos2prio IB/rdma_cm: TOS <=> UP mapping for IBoE drivers/infiniband/core/cma.c | 6 +- drivers/net/ethernet/mellanox/mlx4/Kconfig | 12 ++ drivers/net/ethernet/mellanox/mlx4/Makefile | 1 + drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c | 212 +++++++++++++++++++++ drivers/net/ethernet/mellanox/mlx4/en_main.c | 2 +- drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 50 +++++- drivers/net/ethernet/mellanox/mlx4/en_port.h | 2 + drivers/net/ethernet/mellanox/mlx4/en_resources.c | 6 +- drivers/net/ethernet/mellanox/mlx4/en_rx.c | 4 +- drivers/net/ethernet/mellanox/mlx4/en_sysfs.c | 99 ++++++++++ drivers/net/ethernet/mellanox/mlx4/en_tx.c | 10 +- drivers/net/ethernet/mellanox/mlx4/mlx4.h | 21 ++ drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 40 ++++- drivers/net/ethernet/mellanox/mlx4/port.c | 64 ++++++ include/linux/mlx4/cmd.h | 4 + include/linux/mlx4/device.h | 3 + include/linux/mlx4/qp.h | 3 +- net/ipv4/route.c | 2 +- 18 files changed, 523 insertions(+), 18 deletions(-) create mode 100644 drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c create mode 100644 drivers/net/ethernet/mellanox/mlx4/en_sysfs.c -- 1.7.8.2