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| author | Ingo Molnar <mingo@kernel.org> | 2014-08-22 08:04:15 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-08-22 08:04:15 (GMT) |
| commit | 80b304fd00e8b667775ff791121b61ecd7cd0c03 (patch) | |
| tree | b4f2ec59fe062c43343ee4c2f10a6bcd0e4dcd1b /Documentation/infiniband/user_mad.txt | |
| parent | fb21b84e7f809ef04b1e5aed5d463cf0d4866638 (diff) | |
| parent | 6a7519e81321343165f89abb8b616df186d3e57a (diff) | |
| download | linux-80b304fd00e8b667775ff791121b61ecd7cd0c03.tar.xz | |
Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent
Pull EFI fixes from Matt Fleming:
* WARN_ON(!spin_is_locked()) always triggers on non-SMP machines.
Swap it for the more canonical lockdep_assert_held() which always
does the right thing - Guenter Roeck
* Assign the correct value to efi.runtime_version on arm64 so that all
the runtime services can be invoked - Semen Protsenko
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/infiniband/user_mad.txt')
| -rw-r--r-- | Documentation/infiniband/user_mad.txt | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/Documentation/infiniband/user_mad.txt b/Documentation/infiniband/user_mad.txt index 8a36695..7aca13a 100644 --- a/Documentation/infiniband/user_mad.txt +++ b/Documentation/infiniband/user_mad.txt @@ -26,6 +26,11 @@ Creating MAD agents ioctl. Also, all agents registered through a file descriptor will be unregistered when the descriptor is closed. + 2014 -- a new registration ioctl is now provided which allows additional + fields to be provided during registration. + Users of this registration call are implicitly setting the use of + pkey_index (see below). + Receiving MADs MADs are received using read(). The receive side now supports @@ -104,10 +109,10 @@ P_Key Index Handling The old ib_umad interface did not allow setting the P_Key index for MADs that are sent and did not provide a way for obtaining the P_Key index of received MADs. A new layout for struct ib_user_mad_hdr - with a pkey_index member has been defined; however, to preserve - binary compatibility with older applications, this new layout will - not be used unless the IB_USER_MAD_ENABLE_PKEY ioctl is called - before a file descriptor is used for anything else. + with a pkey_index member has been defined; however, to preserve binary + compatibility with older applications, this new layout will not be used + unless one of IB_USER_MAD_ENABLE_PKEY or IB_USER_MAD_REGISTER_AGENT2 ioctl's + are called before a file descriptor is used for anything else. In September 2008, the IB_USER_MAD_ABI_VERSION will be incremented to 6, the new layout of struct ib_user_mad_hdr will be used by |