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Linux kernel source tree
License: Other
This project forked from torvalds/linux
Linux kernel source tree
License: Other
All these kfrees inside ovey_verbs.c
must be ref_down
Adding and deleting devices must participate in reference counting for the module usage. Opening and closing device must count for the device usage.
linux/drivers/infiniband/sw/ovey/ovey.c
Line 296 in bec236a
rmmod ovey
must delete existing devices. If some device is open, the driver must not be removed.
Function rxe_udp_encap_recv
is responsible for receiving the RoCE packets. For each packet, it linearizes the skb:
linux/drivers/infiniband/sw/rxe/rxe_net.c
Line 205 in ea2cec2
This operation hurts performance a lot and must be removed from the critical path. Unfortunately, it requires non-trivial changes through the whole driver code, as accessing packet becomes less trivial.
When posting a UD WQE, the user-level buffer code provides the full address (destination GID), instead of AH handle. This seems to be unnecessary because it increases the message size and happens in the kernel anyway. Why do the same work twice?
To solve the issue, the following structure must be unshared from the user code (similar changes to be done in rdma-core repo)
linux/include/uapi/rdma/rdma_user_rxe.h
Lines 58 to 67 in ea2cec2
The API must be restructured to pass AH handle instead of AV.
The corresponding snippets in the rdma-core are following:
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