qemu-e2k/hw/rdma
Yuval Shaia 68b89aee71 hw/rdma: Utilize ibv_reg_mr_iova for memory registration
The virtual address that is provided by the guest in post_send and
post_recv operations is related to the guest address space. This address
space is unknown to the HCA resides on host so extra step in these
operations is needed to adjust the address to host virtual address.

This step, which is done in data-path affects performances.

An enhanced verion of MR registration introduced here
https://patchwork.kernel.org/patch/11044467/ can be used so that the
guest virtual address space for this MR is known to the HCA in host.

This will save the data-path adjustment.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20190818132107.18181-3-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2019-11-06 12:49:04 +02:00
..
vmw hw/rdma: Utilize ibv_reg_mr_iova for memory registration 2019-11-06 12:49:04 +02:00
Kconfig
Makefile.objs * Kconfig improvements (msi_nonbroken, imply for default PCI devices) 2019-03-28 09:18:53 +00:00
rdma_backend_defs.h hw/rdma: Add SRQ support to backend layer 2019-05-04 15:55:56 +03:00
rdma_backend.c hw/rdma: Utilize ibv_reg_mr_iova for memory registration 2019-11-06 12:49:04 +02:00
rdma_backend.h hw/rdma: Utilize ibv_reg_mr_iova for memory registration 2019-11-06 12:49:04 +02:00
rdma_rm_defs.h hw/rdma: Modify create/destroy QP to support SRQ 2019-05-04 15:55:56 +03:00
rdma_rm.c hw/rdma: Utilize ibv_reg_mr_iova for memory registration 2019-11-06 12:49:04 +02:00
rdma_rm.h hw/rdma: Modify create/destroy QP to support SRQ 2019-05-04 15:55:56 +03:00
rdma_utils.c
rdma_utils.h Use #include "..." for our own headers, <...> for others 2019-05-13 08:58:55 +02:00
rdma.c
trace-events trace-events: Shorten file names in comments 2019-03-22 16:18:07 +00:00