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authorLinus Torvalds <torvalds@linux-foundation.org>2016-01-23 21:45:06 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-23 21:45:06 -0500
commit048ccca8c1c8f583deec3367d7df521bb1f542ae (patch)
treeefa882c88f658f711d63581a3063203c63682338 /Documentation
parentb3e27d5d4a29bcc8e057b496d5ef5194addaaac0 (diff)
parent34356f64ac0df2326fa50e2d4bca6f7c03ed16c1 (diff)
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma updates from Doug Ledford: "Initial roundup of 4.5 merge window patches - Remove usage of ib_query_device and instead store attributes in ib_device struct - Move iopoll out of block and into lib, rename to irqpoll, and use in several places in the rdma stack as our new completion queue polling library mechanism. Update the other block drivers that already used iopoll to use the new mechanism too. - Replace the per-entry GID table locks with a single GID table lock - IPoIB multicast cleanup - Cleanups to the IB MR facility - Add support for 64bit extended IB counters - Fix for netlink oops while parsing RDMA nl messages - RoCEv2 support for the core IB code - mlx4 RoCEv2 support - mlx5 RoCEv2 support - Cross Channel support for mlx5 - Timestamp support for mlx5 - Atomic support for mlx5 - Raw QP support for mlx5 - MAINTAINERS update for mlx4/mlx5 - Misc ocrdma, qib, nes, usNIC, cxgb3, cxgb4, mlx4, mlx5 updates - Add support for remote invalidate to the iSER driver (pushed through the RDMA tree due to dependencies, acknowledged by nab) - Update to NFSoRDMA (pushed through the RDMA tree due to dependencies, acknowledged by Bruce)" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (169 commits) IB/mlx5: Unify CQ create flags check IB/mlx5: Expose Raw Packet QP to user space consumers {IB, net}/mlx5: Move the modify QP operation table to mlx5_ib IB/mlx5: Support setting Ethernet priority for Raw Packet QPs IB/mlx5: Add Raw Packet QP query functionality IB/mlx5: Add create and destroy functionality for Raw Packet QP IB/mlx5: Refactor mlx5_ib_qp to accommodate other QP types IB/mlx5: Allocate a Transport Domain for each ucontext net/mlx5_core: Warn on unsupported events of QP/RQ/SQ net/mlx5_core: Add RQ and SQ event handling net/mlx5_core: Export transport objects IB/mlx5: Expose CQE version to user-space IB/mlx5: Add CQE version 1 support to user QPs and SRQs IB/mlx5: Fix data validation in mlx5_ib_alloc_ucontext IB/sa: Fix netlink local service GFP crash IB/srpt: Remove redundant wc array IB/qib: Improve ipoib UD performance IB/mlx4: Advertise RoCE v2 support IB/mlx4: Create and use another QP1 for RoCEv2 IB/mlx4: Enable send of RoCE QP1 packets with IP/UDP headers ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/configfs-rdma_cm22
-rw-r--r--Documentation/ABI/testing/sysfs-class-infiniband16
-rw-r--r--Documentation/infiniband/core_locking.txt2
-rw-r--r--Documentation/kernel-per-CPU-kthreads.txt2
4 files changed, 39 insertions, 3 deletions
diff --git a/Documentation/ABI/testing/configfs-rdma_cm b/Documentation/ABI/testing/configfs-rdma_cm
new file mode 100644
index 000000000000..5c389aaf5291
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-rdma_cm
@@ -0,0 +1,22 @@
1What: /config/rdma_cm
2Date: November 29, 2015
3KernelVersion: 4.4.0
4Description: Interface is used to configure RDMA-cable HCAs in respect to
5 RDMA-CM attributes.
6
7 Attributes are visible only when configfs is mounted. To mount
8 configfs in /config directory use:
9 # mount -t configfs none /config/
10
11 In order to set parameters related to a specific HCA, a directory
12 for this HCA has to be created:
13 mkdir -p /config/rdma_cm/<hca>
14
15
16What: /config/rdma_cm/<hca>/ports/<port-num>/default_roce_mode
17Date: November 29, 2015
18KernelVersion: 4.4.0
19Description: RDMA-CM based connections from HCA <hca> at port <port-num>
20 will be initiated with this RoCE type as default.
21 The possible RoCE types are either "IB/RoCE v1" or "RoCE v2".
22 This parameter has RW access.
diff --git a/Documentation/ABI/testing/sysfs-class-infiniband b/Documentation/ABI/testing/sysfs-class-infiniband
new file mode 100644
index 000000000000..a86abe66a316
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-infiniband
@@ -0,0 +1,16 @@
1What: /sys/class/infiniband/<hca>/ports/<port-number>/gid_attrs/ndevs/<gid-index>
2Date: November 29, 2015
3KernelVersion: 4.4.0
4Contact: linux-rdma@vger.kernel.org
5Description: The net-device's name associated with the GID resides
6 at index <gid-index>.
7
8What: /sys/class/infiniband/<hca>/ports/<port-number>/gid_attrs/types/<gid-index>
9Date: November 29, 2015
10KernelVersion: 4.4.0
11Contact: linux-rdma@vger.kernel.org
12Description: The RoCE type of the associated GID resides at index <gid-index>.
13 This could either be "IB/RoCE v1" for IB and RoCE v1 based GODs
14 or "RoCE v2" for RoCE v2 based GIDs.
15
16
diff --git a/Documentation/infiniband/core_locking.txt b/Documentation/infiniband/core_locking.txt
index e1678542279a..4b1f36b6ada0 100644
--- a/Documentation/infiniband/core_locking.txt
+++ b/Documentation/infiniband/core_locking.txt
@@ -15,7 +15,6 @@ Sleeping and interrupt context
15 modify_ah 15 modify_ah
16 query_ah 16 query_ah
17 destroy_ah 17 destroy_ah
18 bind_mw
19 post_send 18 post_send
20 post_recv 19 post_recv
21 poll_cq 20 poll_cq
@@ -31,7 +30,6 @@ Sleeping and interrupt context
31 ib_modify_ah 30 ib_modify_ah
32 ib_query_ah 31 ib_query_ah
33 ib_destroy_ah 32 ib_destroy_ah
34 ib_bind_mw
35 ib_post_send 33 ib_post_send
36 ib_post_recv 34 ib_post_recv
37 ib_req_notify_cq 35 ib_req_notify_cq
diff --git a/Documentation/kernel-per-CPU-kthreads.txt b/Documentation/kernel-per-CPU-kthreads.txt
index f4cbfe0ba108..edec3a3e648d 100644
--- a/Documentation/kernel-per-CPU-kthreads.txt
+++ b/Documentation/kernel-per-CPU-kthreads.txt
@@ -90,7 +90,7 @@ BLOCK_SOFTIRQ: Do all of the following:
90 from being initiated from tasks that might run on the CPU to 90 from being initiated from tasks that might run on the CPU to
91 be de-jittered. (It is OK to force this CPU offline and then 91 be de-jittered. (It is OK to force this CPU offline and then
92 bring it back online before you start your application.) 92 bring it back online before you start your application.)
93BLOCK_IOPOLL_SOFTIRQ: Do all of the following: 93IRQ_POLL_SOFTIRQ: Do all of the following:
941. Force block-device interrupts onto some other CPU. 941. Force block-device interrupts onto some other CPU.
952. Initiate any block I/O and block-I/O polling on other CPUs. 952. Initiate any block I/O and block-I/O polling on other CPUs.
963. Once your application has started, prevent CPU-hotplug operations 963. Once your application has started, prevent CPU-hotplug operations