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RDMA/efa: Introduce SRD RNR retry

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This patch introduces the ability to configure SRD QPs with the RNR retry
parameter when issuing a modify QP command.

In addition, a capability bit was added to report support to the userspace
library.

Link: https://lore.kernel.org/r/20200731060420.17053-5-galpress@amazon.com
Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Gal Pressman
2020-08-18 14:52:45 -03:00
committed by Jason Gunthorpe
parent 22c50e0660
commit a4e6a1dd57
5 changed files with 32 additions and 9 deletions
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include/uapi/rdma/efa-abi.h
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@@ -105,6 +105,7 @@ struct efa_ibv_create_ah_resp {
enum {
EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0,
EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1,
};
struct efa_ibv_ex_query_device_resp {