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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-13 12:57:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-13 12:57:21 -0700
commitc55244137306b626bc64023fd7160985443205a7 (patch)
tree459acfb5c9b41e3e1616fb36aafda68a07ddbf54 /Documentation/ABI/stable
parent858655116bfc722837e3aec0909b8e9d08f96996 (diff)
parente04abfa2436e3ab016b23eb1afb2c5578b8dc2cf (diff)
downloadlinux-c55244137306b626bc64023fd7160985443205a7.tar.gz
Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull InfiniBand/RDMA changes from Roland Dreier:
 - AF_IB (native IB addressing) for CMA from Sean Hefty
 - new mlx5 driver for Mellanox Connect-IB adapters (including post
   merge request fixes)
 - SRP fixes from Bart Van Assche (including fix to first merge request)
 - qib HW driver updates
 - resurrection of ocrdma HW driver development
 - uverbs conversion to create fds with O_CLOEXEC set
 - other small changes and fixes

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (66 commits)
  mlx5: Return -EFAULT instead of -EPERM
  IB/qib: Log all SDMA errors unconditionally
  IB/qib: Fix module-level leak
  mlx5_core: Adjust hca_cap.uar_page_sz to conform to Connect-IB spec
  IB/srp: Let srp_abort() return FAST_IO_FAIL if TL offline
  IB/uverbs: Use get_unused_fd_flags(O_CLOEXEC) instead of get_unused_fd()
  mlx5_core: Fixes for sparse warnings
  IB/mlx5: Make profile[] static in main.c
  mlx5: Fix parameter type of health_handler_t
  mlx5: Add driver for Mellanox Connect-IB adapters
  IB/core: Add reserved values to enums for low-level driver use
  IB/srp: Bump driver version and release date
  IB/srp: Make HCA completion vector configurable
  IB/srp: Maintain a single connection per I_T nexus
  IB/srp: Fail I/O fast if target offline
  IB/srp: Skip host settle delay
  IB/srp: Avoid skipping srp_reset_host() after a transport error
  IB/srp: Fix remove_one crash due to resource exhaustion
  IB/qib: New transmitter tunning settings for Dell 1.1 backplane
  IB/core: Fix error return code in add_port()
  ...
Diffstat (limited to 'Documentation/ABI/stable')
-rw-r--r--Documentation/ABI/stable/sysfs-driver-ib_srp7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-ib_srp b/Documentation/ABI/stable/sysfs-driver-ib_srp
index 481aae95c7d1..5c53d28f775c 100644
--- a/Documentation/ABI/stable/sysfs-driver-ib_srp
+++ b/Documentation/ABI/stable/sysfs-driver-ib_srp
@@ -54,6 +54,13 @@ Description:	Interface for making ib_srp connect to a new target.
 		  ib_srp. Specifying a value that exceeds cmd_sg_entries is
 		  only safe with partial memory descriptor list support enabled
 		  (allow_ext_sg=1).
+		* comp_vector, a number in the range 0..n-1 specifying the
+		  MSI-X completion vector. Some HCA's allocate multiple (n)
+		  MSI-X vectors per HCA port. If the IRQ affinity masks of
+		  these interrupts have been configured such that each MSI-X
+		  interrupt is handled by a different CPU then the comp_vector
+		  parameter can be used to spread the SRP completion workload
+		  over multiple CPU's.
 
 What:		/sys/class/infiniband_srp/srp-<hca>-<port_number>/ibdev
 Date:		January 2, 2006