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Message-ID: <552BB470.4090407@profitbricks.com>
Date: Mon, 13 Apr 2015 14:20:00 +0200
From: Michael Wang <yun.wang@...fitbricks.com>
To: Roland Dreier <roland@...nel.org>,
Sean Hefty <sean.hefty@...el.com>,
Hal Rosenstock <hal.rosenstock@...il.com>,
linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
CC: Tom Tucker <tom@...ngridcomputing.com>,
Steve Wise <swise@...ngridcomputing.com>,
Hoang-Nam Nguyen <hnguyen@...ibm.com>,
Christoph Raisch <raisch@...ibm.com>,
Mike Marciniszyn <infinipath@...el.com>,
Eli Cohen <eli@...lanox.com>,
Faisal Latif <faisal.latif@...el.com>,
Jack Morgenstein <jackm@....mellanox.co.il>,
Or Gerlitz <ogerlitz@...lanox.com>,
Haggai Eran <haggaie@...lanox.com>,
Ira Weiny <ira.weiny@...el.com>, Tom Talpey <tom@...pey.com>,
Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
Doug Ledford <dledford@...hat.com>,
Michael Wang <yun.wang@...fitbricks.com>
Subject: [PATCH v3 00/28] IB/Verbs: IB Management Helpers
Since v2:
* Apply suggestions from Doug, Ira, Jason, Tom, Steve, thanks for the comments :-)
and please remind me if I missed anything :-P
There are plenty of lengthy code to check the transport type of IB device,
or the link layer type of it's port, but actually we are just speculating
whether a particular management/feature is supported by the device/port.
Thus instead of inferring, we should have our own mechanism for IB management
capability/protocol/feature checking, several proposals below.
This patch set will reform the method of getting transport type, we will
now using query_transport() instead of inferring from transport and link
layer respectively, also we defined the new transport type to make the
concept more reasonable.
Mapping List:
node-type link-layer old-transport new-transport
nes RNIC ETH IWARP IWARP
amso1100 RNIC ETH IWARP IWARP
cxgb3 RNIC ETH IWARP IWARP
cxgb4 RNIC ETH IWARP IWARP
usnic USNIC_UDP ETH USNIC_UDP USNIC_UDP
ocrdma IB_CA ETH IB IBOE
mlx4 IB_CA IB/ETH IB IB/IBOE
mlx5 IB_CA IB IB IB
ehca IB_CA IB IB IB
ipath IB_CA IB IB IB
mthca IB_CA IB IB IB
qib IB_CA IB IB IB
For example:
if (transport == IB) && (link-layer == ETH)
will now become:
if (query_transport() == IBOE)
Thus we will be able to get rid of the respective transport and link-layer
checking, and it will help us to add new protocol/Technology (like OPA) more
easier, also with the introduced management helpers, IB management logical
will be more clear and easier for extending.
Highlights:
The patch set covered a wide range of IB stuff, thus for those who are
familiar with the particular part, your suggestion would be invaluable ;-)
Patches haven't been tested yet, we appreciate if any one who have these
HW willing to provide his Tested-by :-)
Doug suggested the bitmask mechanism:
https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23765.html
which could be the plan for future reforming, we prefer that to be another
series which focus on semantic and performance.
This patch-set is somewhat 'bloated' now and it may be a good timing for
staging, I'd like to suggest we focus on improving existed helpers and push
all the further reforms into next series ;-)
Proposals:
Sean:
https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23339.html
Doug:
https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23418.html
https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23765.html
Jason:
https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23425.html
Michael Wang (28):
[PATCH v3 01/28] IB/Verbs: Implement new callback query_transport()
[PATCH v3 02/28] IB/Verbs: Implement raw management helpers
[PATCH v3 03/28] IB/Verbs: Reform IB-core mad/agent/user_mad
[PATCH v3 04/28] IB/Verbs: Reform IB-core cm
[PATCH v3 05/28] IB/Verbs: Reform IB-core sa_query
[PATCH v3 06/28] IB/Verbs: Reform IB-core multicast
[PATCH v3 07/28] IB/Verbs: Reform IB-ulp ipoib
[PATCH v3 08/28] IB/Verbs: Reform IB-ulp xprtrdma
[PATCH v3 09/28] IB/Verbs: Reform IB-core verbs/uverbs_cmd/sysfs
[PATCH v3 10/28] IB/Verbs: Reform cm related part in IB-core cma
[PATCH v3 11/28] IB/Verbs: Reform route related part in IB-core cma
[PATCH v3 12/28] IB/Verbs: Reform mcast related part in IB-core cma
[PATCH v3 13/28] IB/Verbs: Reserve legacy transport type in 'dev_addr'
[PATCH v3 14/28] IB/Verbs: Reform cma_acquire_dev()
[PATCH v3 15/28] IB/Verbs: Reform rest part in IB-core cma
[PATCH v3 16/28] IB/Verbs: Use management helper cap_ib_mad()
[PATCH v3 17/28] IB/Verbs: Use management helper cap_ib_smi()
[PATCH v3 18/28] IB/Verbs: Use management helper cap_ib_cm()
[PATCH v3 19/28] IB/Verbs: Use management helper cap_iw_cm()
[PATCH v3 20/28] IB/Verbs: Use management helper cap_ib_sa()
[PATCH v3 21/28] IB/Verbs: Use management helper cap_ib_mcast()
[PATCH v3 22/28] IB/Verbs: Use management helper cap_ipoib()
[PATCH v3 23/28] IB/Verbs: Use management helper cap_read_multi_sge()
[PATCH v3 24/28] IB/Verbs: Use management helper cap_ib_cm_dev()
[PATCH v3 25/28] IB/Verbs: Use management helper cap_af_ib()
[PATCH v3 26/28] IB/Verbs: Use management helper cap_eth_ah()
[PATCH v3 27/28] IB/Verbs: Clean up rdma_ib_or_iboe()
[PATCH v3 28/28] IB/Verbs: Cleanup rdma_node_get_transport()
---
drivers/infiniband/core/agent.c | 4
drivers/infiniband/core/cm.c | 28 +-
drivers/infiniband/core/cma.c | 331 ++++++++++++---------------
drivers/infiniband/core/device.c | 1
drivers/infiniband/core/mad.c | 28 +-
drivers/infiniband/core/multicast.c | 18 -
drivers/infiniband/core/sa_query.c | 41 +--
drivers/infiniband/core/sysfs.c | 8
drivers/infiniband/core/ucm.c | 3
drivers/infiniband/core/ucma.c | 27 --
drivers/infiniband/core/user_mad.c | 32 +-
drivers/infiniband/core/uverbs_cmd.c | 6
drivers/infiniband/core/verbs.c | 33 --
drivers/infiniband/hw/amso1100/c2_provider.c | 7
drivers/infiniband/hw/cxgb3/iwch_provider.c | 7
drivers/infiniband/hw/cxgb4/provider.c | 7
drivers/infiniband/hw/ehca/ehca_hca.c | 6
drivers/infiniband/hw/ehca/ehca_iverbs.h | 3
drivers/infiniband/hw/ehca/ehca_main.c | 1
drivers/infiniband/hw/ipath/ipath_verbs.c | 7
drivers/infiniband/hw/mlx4/main.c | 10
drivers/infiniband/hw/mlx5/main.c | 7
drivers/infiniband/hw/mthca/mthca_provider.c | 7
drivers/infiniband/hw/nes/nes_verbs.c | 6
drivers/infiniband/hw/ocrdma/ocrdma_main.c | 1
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 6
drivers/infiniband/hw/ocrdma/ocrdma_verbs.h | 3
drivers/infiniband/hw/qib/qib_verbs.c | 7
drivers/infiniband/hw/usnic/usnic_ib_main.c | 1
drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 6
drivers/infiniband/hw/usnic/usnic_ib_verbs.h | 2
drivers/infiniband/ulp/ipoib/ipoib_main.c | 17 -
include/rdma/ib_verbs.h | 224 +++++++++++++++++-
net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 6
net/sunrpc/xprtrdma/svc_rdma_transport.c | 51 +---
35 files changed, 599 insertions(+), 353 deletions(-)
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