Red Hat Bugzilla – Bug 1291902
Enable mlx5, ocrdma, and usnic in kernel builds
Last modified: 2018-04-11 14:07:07 EDT
Description of problem:
The current Fedora kernel builds omit a number of current RDMA capable drivers.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Install rawhide, try to use certain hardware
No modules built, hardware not supported
Hardware will work.
Please enable the following kernel options in the general config for the Fedora kernels, and preferably carry this change back to the f22 and f23 kernels as well:
# CONFIG_MLX4_DEBUG is not set (could be enabled though, not high priority either way)
# CONFIG_CHELSIO_T4_FCOE is not set (I've seen this one cause boot hangs, best to leave off for now)
I turned the options on in rawhide. Once they've gotten some testing there we can make a decision on backporting to F22 or F23.
When it comes time to make the decision on f22/f23, please keep in mind that I am the upstream maintainer of the RDMA stack in the linux kernel, that all of these drivers are related to my upstream activities, and the fact that these are turned off is a hindrance to me being able to perform testing using fedora as a platform in the internal RDMA dedicated lab at Red Hat where all of the hardware that I requested be enabled is present and used. That being the case, I hope you can get this hardware enabled across the board, and preferably sooner rather than later.
I'm curious why you're only requesting them to be enabled now if this is a hinderance to testing.
Because for the last couple years I've been highly focused on RHEL support (this was prior to taking over for the previous upstream kernel maintainer of the RDMA stack). Since taking over as the upstream maintainer, people have been brought in to backfill my RHEL responsibilities, and I'm focused entirely on upstream. In that regard, I would prefer to use fedora as my base platform for that work, but I need these options enabled to make the transition from using RHEL7 as my base platform.
FWIW, mlx5 is a converged adapter that would be super helpful to enable in Feodra, for Ethernet work.
though, this has been open for two years now. Why is it still disabled?
I'm looking at rawhide and the options are enabled as well as F27 (see https://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/fedora.git/commit/?h=f27&id=04efbf7ae96008fdab54fc3e2c15be69223f5b50) where are you seeing them disabled?
Do we still need to set options?
I checked the x86_64 config. The mlx5 is enabled now, but some new options have come up in the meantime that should be enabled:
+# CONFIG_SMC is not set
+# CONFIG_INFINIBAND_QEDR is not set
+# CONFIG_INFINIBAND_BNXT_RE is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
Without that set, we don't even see the option for HNS_ROCE under the infiniband drivers.
Did you mean NET_VENDOR_HISILICON?
I turned on the ones that were still listed as being off, so I'm going to close this particular bug. Feel free to open a new bug for other options you find that are off or submit a patch to email@example.com