Messages in this thread |  | | Date | Sat, 12 Aug 2017 11:49:42 -0700 | From | Christoph Hellwig <> | Subject | Re: [[PATCH v1] 02/37] [CIFS] SMBD: Add structure for SMBD transport |
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On Sat, Aug 12, 2017 at 08:32:48AM +0000, Long Li via samba-technical wrote: > I think it is possible to separate the common code that implements the SMBDirect transport. There are some challenges to reuse the same code for both kernel and user spaces. > 1. Kernel mode RDMA verbs are similar but different to user-mode ones. > 2. Some RDMA features (e.g Fast Registration Work Request) are not available in user-mode. > 3. Locking and synchronization mechanism is different > 4. Memory management is different. > 5. Process creation/scheduling and data sharing between processes are different, and there is no user-mode code running in interrupt/softirq. > > Those needs to be abstracted through a layer, the rest of the code can be shared. I can work on this after patch set is reviewed.
NAK - code with those sort of obsfucation layer will be rejected for kernel inclusion - don't add it.
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