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path: root/include/uapi/rdma/efa-abi.h
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2020-08-18RDMA/efa: Introduce SRD RNR retryGal Pressman
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>
2020-07-29RDMA/efa: User/kernel compatibility handshake mechanismGal Pressman
Introduce a mechanism that performs an handshake between the userspace provider and kernel driver which verifies that the user supports all required features in order to operate correctly. The handshake verifies the needed functionality by comparing the reported device caps and the provider caps. If the device reports a non-zero capability the appropriate comp mask is required from the userspace provider in order to allocate the context. Link: https://lore.kernel.org/r/20200722140312.3651-4-galpress@amazon.com Reviewed-by: Shadi Ammouri <sammouri@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>
2020-07-29RDMA/efa: Expose minimum SQ sizeGal Pressman
The device reports the minimum SQ size required for creation. This patch queries the min SQ size and reports it back to the userspace library. Link: https://lore.kernel.org/r/20200722140312.3651-3-galpress@amazon.com Reviewed-by: Firas JahJah <firasj@amazon.com> Reviewed-by: Shadi Ammouri <sammouri@amazon.com> Signed-off-by: Gal Pressman <galpress@amazon.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-29RDMA/efa: Expose maximum TX doorbell batchGal Pressman
The device reports the maximum number of bytes to be written before ringing the doorbell (zero means unlimited). This patch queries the max batch size and reports it back to the userspace library. Link: https://lore.kernel.org/r/20200722140312.3651-2-galpress@amazon.com Reviewed-by: Daniel Kranzdorf <dkkranzd@amazon.com> Reviewed-by: Firas JahJah <firasj@amazon.com> Signed-off-by: Gal Pressman <galpress@amazon.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2019-11-25RDMA/efa: Expose RDMA read related attributesDaniel Kranzdorf
Query the device attributes for RDMA operations, including maximum transfer size and maximum number of SGEs per RDMA WR, and report them back to the userspace library. Link: https://lore.kernel.org/r/20191121141509.59297-4-galpress@amazon.com Signed-off-by: Daniel Kranzdorf <dkkranzd@amazon.com> Reviewed-by: Yossi Leybovich <sleybo@amazon.com> Signed-off-by: Gal Pressman <galpress@amazon.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-06RDMA/efa: Add the ABI definitionsGal Pressman
Add the EFA ABI file exposed to userspace. Signed-off-by: Gal Pressman <galpress@amazon.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>