Here is an initial implementation of InfiniBand userspace verbs. I plan to commit this code to the OpenIB repository shortly, and submit it for inclusion during the 2.6.13 cycle, so I am posting it early for comments.
This code, in conjunction with the libibverbs and libmthca userspace libraries available from the subversion trees at https://openib.org/svn/gen2/branches/roland-uverbs/src/userspace/libibverbs https://openib.org/svn/gen2/branches/roland-uverbs/src/userspace/libmthca enables userspace processes to access InfiniBand HCAs directly. For those not familiar with the InfiniBand architecture, this so-called "userspace verbs" support allows userspace to post data path commands directly to the HCA. Resource allocation and other control path operations still go through the kernel driver. Please take a look at this code if you have a chance. I would appreciate high-level criticism of the design and implementation as well as nitpicky complaints about coding style and typos. In particular, the memory pinning code in in uverbs_mem.c could stand a looking over. In addition, a sanity check of the write()-based scheme for passing commands into the kernel in uverbs_main.c and uverbs_cmd.c is probably worthwhile. Thanks, Roland - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/