From 6dddd93938b3651cfeba7158ac179b4e6d3c1553 Mon Sep 17 00:00:00 2001 From: Yonatan Nachum Date: Sun, 19 Feb 2023 08:13:28 +0000 Subject: RDMA/efa: Add data polling capability feature bit Add feature bit to existing device caps field. EFA supports data polling of 128 bytes blocks. The flag indicates that the NIC guarentees that a 128 byte aligned block is written in order, ie that observing the last 8 bits of the block mean the prior 127 bytes are also written. It is useful for "last data polling" acceleration techniques. Link: https://lore.kernel.org/r/20230219081328.10419-1-mrgolin@amazon.com Reviewed-by: Yehuda Yitschak Reviewed-by: Yossi Leybovich Signed-off-by: Yonatan Nachum Signed-off-by: Michael Margolin Acked-by: Gal Pressman Signed-off-by: Jason Gunthorpe --- include/uapi/rdma/efa-abi.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/uapi') diff --git a/include/uapi/rdma/efa-abi.h b/include/uapi/rdma/efa-abi.h index 163ac79556d6..74406b4817ce 100644 --- a/include/uapi/rdma/efa-abi.h +++ b/include/uapi/rdma/efa-abi.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */ /* - * Copyright 2018-2022 Amazon.com, Inc. or its affiliates. All rights reserved. + * Copyright 2018-2023 Amazon.com, Inc. or its affiliates. All rights reserved. */ #ifndef EFA_ABI_USER_H @@ -120,6 +120,7 @@ enum { EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1, EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS = 1 << 2, EFA_QUERY_DEVICE_CAPS_CQ_WITH_SGID = 1 << 3, + EFA_QUERY_DEVICE_CAPS_DATA_POLLING_128 = 1 << 4, }; struct efa_ibv_ex_query_device_resp { -- cgit v1.2.3 From d54bd5abf4d26e1b6722238f75e36069ea91def9 Mon Sep 17 00:00:00 2001 From: Selvin Xavier Date: Wed, 15 Mar 2023 01:16:55 -0700 Subject: RDMA/bnxt_re: Add resize_cq support Add resize_cq verb support for user space CQs. Resize operation for kernel CQs are not supported now. Driver should free the current CQ only after user library polls for all the completions and switch to new CQ. So after the resize_cq is returned from the driver, user library polls for existing completions and store it as temporary data. Once library reaps all completions in the current CQ, it invokes the ibv_cmd_poll_cq to inform the driver about the resize_cq completion. Adding a check for user CQs in driver's poll_cq and complete the resize operation for user CQs. Updating uverbs_cmd_mask with poll_cq to support this. Signed-off-by: Selvin Xavier Link: https://lore.kernel.org/r/1678868215-23626-1-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Leon Romanovsky --- include/uapi/rdma/bnxt_re-abi.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/rdma/bnxt_re-abi.h b/include/uapi/rdma/bnxt_re-abi.h index b1de99bf56ce..c4e90775da0c 100644 --- a/include/uapi/rdma/bnxt_re-abi.h +++ b/include/uapi/rdma/bnxt_re-abi.h @@ -96,6 +96,10 @@ struct bnxt_re_cq_resp { __u32 rsvd; }; +struct bnxt_re_resize_cq_req { + __aligned_u64 cq_va; +}; + struct bnxt_re_qp_req { __aligned_u64 qpsva; __aligned_u64 qprva; -- cgit v1.2.3 From 531094dc7164718d28ebb581d729807d7e846363 Mon Sep 17 00:00:00 2001 From: Yonatan Nachum Date: Tue, 4 Apr 2023 15:43:13 +0000 Subject: RDMA/efa: Add rdma write capability to device caps Add rdma write capability that is propagated from the device to rdma-core. Enable MR creation with remote write permissions according to this device capability. Link: https://lore.kernel.org/r/20230404154313.35194-1-ynachum@amazon.com Reviewed-by: Firas Jahjah Reviewed-by: Michael Margolin Signed-off-by: Yonatan Nachum Signed-off-by: Jason Gunthorpe --- include/uapi/rdma/efa-abi.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi') diff --git a/include/uapi/rdma/efa-abi.h b/include/uapi/rdma/efa-abi.h index 74406b4817ce..d94c32f28804 100644 --- a/include/uapi/rdma/efa-abi.h +++ b/include/uapi/rdma/efa-abi.h @@ -121,6 +121,7 @@ enum { EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS = 1 << 2, EFA_QUERY_DEVICE_CAPS_CQ_WITH_SGID = 1 << 3, EFA_QUERY_DEVICE_CAPS_DATA_POLLING_128 = 1 << 4, + EFA_QUERY_DEVICE_CAPS_RDMA_WRITE = 1 << 5, }; struct efa_ibv_ex_query_device_resp { -- cgit v1.2.3