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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-27 09:39:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-27 09:39:27 -0700 |
| commit | afc2e82c0851317931a9bfdb98271253371825c6 (patch) | |
| tree | 3f1c119559bd94402d0574f786851bd34bbc048f /Documentation | |
| parent | 0278ef8b484a71917bd4f03a763285cdaac10954 (diff) | |
| parent | 1912ffbb88efe872eb8fa8113dfb3cb0b7238764 (diff) | |
| download | linux-afc2e82c0851317931a9bfdb98271253371825c6.tar.gz | |
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 if (ret != sizeof *mad + mad_length) perror("write"); +Transaction IDs + + Users of the umad devices can use the lower 32 bits of the + transaction ID field (that is, the least significant half of the + field in network byte order) in MADs being sent to match + request/response pairs. The upper 32 bits are reserved for use by + the kernel and will be overwritten before a MAD is sent. + Setting IsSM Capability Bit To set the IsSM capability bit for a port, simply open the |