From: Amir Vadai <amirv@mellanox.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, Roland Dreier <roland@purestorage.com>,
Oren Duer <oren@mellanox.com>, Amir Vadai <amirv@mellanox.com>
Subject: [PATCH 0/8] net/mlx4_en: DCB QoS support
Date: Tue, 13 Mar 2012 19:21:55 +0200 [thread overview]
Message-ID: <1331659323-12904-1-git-send-email-amirv@mellanox.com> (raw)
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.
The Current HW based QoS mechanism which was introduced in commit 4f57c087de9
"net: implement mechanism for HW based QOS" is in orientation to ETS traffic
class. Patch 7/8 introduces an approach which allow to use this mechanism also
with hardware who has queues per user priority (UP). After the change,
__skb_tx_hash() will direct a flow to a tx ring from a range of tx rings. This
range is defined by the caller function by the specific HW. If TC based queues,
the range is by TC number and for UP based queues, the range is by UP.
Amir Vadai (8):
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
IB/rdma_cm: TOS <=> UP mapping for IBoE
net: support tx_ring per UP in HW based QoS mechanism
net/mlx4_en: num cores tx rings for every UP
drivers/infiniband/core/cma.c | 35 ++++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 11 +-
drivers/net/ethernet/mellanox/mlx4/Kconfig | 12 ++
drivers/net/ethernet/mellanox/mlx4/Makefile | 1 +
drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c | 215 +++++++++++++++++++++
drivers/net/ethernet/mellanox/mlx4/en_main.c | 6 +-
drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 64 ++++++-
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 | 120 ++++++++++++
drivers/net/ethernet/mellanox/mlx4/en_tx.c | 20 +-
drivers/net/ethernet/mellanox/mlx4/mlx4.h | 20 ++
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 38 +++-
drivers/net/ethernet/mellanox/mlx4/port.c | 62 ++++++
include/linux/mlx4/cmd.h | 4 +
include/linux/mlx4/device.h | 3 +
include/linux/mlx4/qp.h | 3 +-
include/linux/netdevice.h | 12 +-
include/linux/skbuff.h | 3 +-
net/core/dev.c | 10 +-
21 files changed, 615 insertions(+), 36 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
next reply other threads:[~2012-03-13 17:22 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-13 17:21 Amir Vadai [this message]
2012-03-13 17:21 ` [PATCH 1/8] net/mlx4_en: Force user priority by QP attribute Amir Vadai
2012-03-13 17:21 ` [PATCH 2/8] net/mlx4_core: set port QoS attributes Amir Vadai
2012-03-13 17:21 ` [PATCH 3/8] net/mlx4_en: DCB QoS support Amir Vadai
2012-03-13 17:21 ` [PATCH 4/8] net/mlx4_en: Set max rate-limit for a TC Amir Vadai
2012-03-13 18:26 ` John Fastabend
2012-03-14 10:31 ` Amir Vadai
2012-03-13 19:16 ` Dave Taht
2012-03-14 10:42 ` Amir Vadai
2012-03-13 17:22 ` [PATCH 5/8] net/mlx4_en: sk_prio <=> UP for untagged traffic Amir Vadai
2012-03-13 17:22 ` [PATCH 6/8] IB/rdma_cm: TOS <=> UP mapping for IBoE Amir Vadai
2012-03-13 17:22 ` [PATCH 7/8] net: support tx_ring per UP in HW based QoS mechanism Amir Vadai
2012-03-13 18:23 ` John Fastabend
2012-03-14 10:09 ` Amir Vadai
2012-03-14 21:36 ` John Fastabend
2012-03-15 10:05 ` Amir Vadai
2012-03-16 7:16 ` John Fastabend
2012-03-13 17:22 ` [PATCH 8/8] net/mlx4_en: num cores tx rings for every UP Amir Vadai
2012-03-20 11:29 ` [PATCH 0/8] net/mlx4_en: DCB QoS support Amir Vadai
2012-03-20 19:58 ` David Miller
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