Messages in this thread | | | From | Roland Dreier <> | Subject | Re: [PATCH] SCSI driver for VMware's virtual HBA. | Date | Tue, 01 Sep 2009 09:12:43 -0700 |
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> - Reuse the existing SRP initiator (ib_srp). Currently there are two > SRP initiators present in the Linux kernel -- one that uses the RDMA > verbs API (ib_srp) and one that only works with IBM's i/pSeries > hypervisor (ibmvscsi).
This would be sane, although the difference in management APIs etc made this seem like quite a bit of work when I looked at it (hence the existence of both ibmvscsi and ib_srp).
> - Reuse the ib_ipoib kernel module to provide an IP stack on top of > the new RDMA driver instead of having to maintain a separate network > driver for this hardware (ibmveth).
I don't think this really makes sense, because IPoIB is not really handling ethernet (it is a different L2 ethernet encapsulation), and I think the commonality with ibmveth is going to be minimal.
I'm not really sure we should be trying to force drivers to share just because they are paravirtualized -- if there is real commonality, then sure put it in common code, but different hypervisors are probably as different as different hardware.
- R.
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