diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-27 12:39:27 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-27 12:39:27 -0400 |
| commit | afc2e82c0851317931a9bfdb98271253371825c6 (patch) | |
| tree | 3f1c119559bd94402d0574f786851bd34bbc048f /Documentation | |
| parent | 0278ef8b484a71917bd4f03a763285cdaac10954 (diff) | |
| parent | 1912ffbb88efe872eb8fa8113dfb3cb0b7238764 (diff) | |
Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: (49 commits)
IB: Set class_dev->dev in core for nice device symlink
IB/ehca: Implement modify_port
IB/umad: Clarify documentation of transaction ID
IPoIB/cm: spin_lock_irqsave() -> spin_lock_irq() replacements
IB/mad: Change SMI to use enums rather than magic return codes
IB/umad: Implement GRH handling for sent/received MADs
IB/ipoib: Use ib_init_ah_from_path to initialize ah_attr
IB/sa: Set src_path_bits correctly in ib_init_ah_from_path()
IB/ucm: Simplify ib_ucm_event()
RDMA/ucma: Simplify ucma_get_event()
IB/mthca: Simplify CQ cleaning in mthca_free_qp()
IB/mthca: Fix mthca_write_mtt() on HCAs with hidden memory
IB/mthca: Update HCA firmware revisions
IB/ipath: Fix WC format drift between user and kernel space
IB/ipath: Check that a UD work request's address handle is valid
IB/ipath: Remove duplicate stuff from ipath_verbs.h
IB/ipath: Check reserved memory keys
IB/ipath: Fix unit selection when all CPU affinity bits set
IB/ipath: Don't allow QPs 0 and 1 to be opened multiple times
IB/ipath: Disable IB link earlier in shutdown sequence
...
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/infiniband/user_mad.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/infiniband/user_mad.txt b/Documentation/infiniband/user_mad.txt index 750fe5e80ebc..8ec54b974b67 100644 --- a/Documentation/infiniband/user_mad.txt +++ b/Documentation/infiniband/user_mad.txt | |||
| @@ -91,6 +91,14 @@ Sending MADs | |||
| 91 | if (ret != sizeof *mad + mad_length) | 91 | if (ret != sizeof *mad + mad_length) |
| 92 | perror("write"); | 92 | perror("write"); |
| 93 | 93 | ||
| 94 | Transaction IDs | ||
| 95 | |||
| 96 | Users of the umad devices can use the lower 32 bits of the | ||
| 97 | transaction ID field (that is, the least significant half of the | ||
| 98 | field in network byte order) in MADs being sent to match | ||
| 99 | request/response pairs. The upper 32 bits are reserved for use by | ||
| 100 | the kernel and will be overwritten before a MAD is sent. | ||
| 101 | |||
| 94 | Setting IsSM Capability Bit | 102 | Setting IsSM Capability Bit |
| 95 | 103 | ||
| 96 | To set the IsSM capability bit for a port, simply open the | 104 | To set the IsSM capability bit for a port, simply open the |