Commit e736a223 authored by Yonatan Nachum's avatar Yonatan Nachum Committed by Leon Romanovsky
Browse files

RDMA/efa: Expose new extended max inline buff size 



Add new extended max inline query and report the new value to userspace.

Reviewed-by: default avatarFiras Jahjah <firasj@amazon.com>
Reviewed-by: default avatarMichael Margolin <mrgolin@amazon.com>
Signed-off-by: default avatarYonatan Nachum <ynachum@amazon.com>
Link: https://patch.msgid.link/20260217112304.36849-3-ynachum@amazon.com


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 6b8d5a0c

drivers/infiniband/hw/efa/efa_admin_cmds_defs.h

+14 −1
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ enum efa_admin_aq_feature_id { 
	EFA_ADMIN_HW_HINTS                          = 5,

	EFA_ADMIN_HOST_INFO                         = 6,

	EFA_ADMIN_EVENT_QUEUE_ATTR                  = 7,

	EFA_ADMIN_QUEUE_ATTR_2                      = 9,

};



/* QP transport type */
@@ -751,7 +752,12 @@ struct efa_admin_feature_queue_attr_desc_1 { 
	/* Maximum number of WQEs per Send Queue */

	u32 max_sq_depth;



	/* Maximum size of data that can be sent inline in a Send WQE */

	/*

	 * Maximum size of data that can be sent inline in a Send WQE

	 * (deprecated by

	 * efa_admin_feature_queue_attr_desc_2::inline_buf_size_ex on

	 * supporting devices)

	 */

	u32 inline_buf_size;



	/* Maximum number of buffer descriptors per Recv Queue */
@@ -805,6 +811,11 @@ struct efa_admin_feature_queue_attr_desc_1 { 
	u16 max_tx_batch;

};



struct efa_admin_feature_queue_attr_desc_2 {

	/* Maximum size of data that can be sent inline in a Send WQE */

	u16 inline_buf_size_ex;

};



struct efa_admin_event_queue_attr_desc {

	/* The maximum number of event queues supported */

	u32 max_eq;
@@ -874,6 +885,8 @@ struct efa_admin_get_feature_resp { 


		struct efa_admin_feature_queue_attr_desc_1 queue_attr_1;



		struct efa_admin_feature_queue_attr_desc_2 queue_attr_2;



		struct efa_admin_event_queue_attr_desc event_queue_attr;



		struct efa_admin_hw_hints hw_hints;

drivers/infiniband/hw/efa/efa_com_cmd.c

+15 −0
Original line number Diff line number Diff line
@@ -505,6 +505,21 @@ int efa_com_get_device_attr(struct efa_com_dev *edev, 
	result->max_tx_batch = resp.u.queue_attr_1.max_tx_batch;

	result->min_sq_depth = resp.u.queue_attr_1.min_sq_depth;



	if (efa_com_check_supported_feature_id(edev, EFA_ADMIN_QUEUE_ATTR_2)) {

		err = efa_com_get_feature(edev, &resp,

					  EFA_ADMIN_QUEUE_ATTR_2);

		if (err) {

			ibdev_err_ratelimited(

				edev->efa_dev,

				"Failed to get queue attributes2 %d\n", err);

			return err;

		}



		result->inline_buf_size_ex = resp.u.queue_attr_2.inline_buf_size_ex;

	} else {

		result->inline_buf_size_ex = result->inline_buf_size;

	}



	err = efa_com_get_feature(edev, &resp, EFA_ADMIN_NETWORK_ATTR);

	if (err) {

		ibdev_err_ratelimited(edev->efa_dev,

drivers/infiniband/hw/efa/efa_com_cmd.h

+2 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */

/*

 * Copyright 2018-2025 Amazon.com, Inc. or its affiliates. All rights reserved.

 * Copyright 2018-2026 Amazon.com, Inc. or its affiliates. All rights reserved.

 */



#ifndef _EFA_COM_CMD_H_
@@ -127,6 +127,7 @@ struct efa_com_get_device_attr_result { 
	u32 max_cq;

	u32 max_cq_depth; /* cqes */

	u32 inline_buf_size;

	u32 inline_buf_size_ex;

	u32 max_mr;

	u32 max_pd;

	u32 max_ah;

drivers/infiniband/hw/efa/efa_verbs.c

+2 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB

/*

 * Copyright 2018-2024 Amazon.com, Inc. or its affiliates. All rights reserved.

 * Copyright 2018-2026 Amazon.com, Inc. or its affiliates. All rights reserved.

 */



#include <linux/dma-buf.h>
@@ -1988,6 +1988,7 @@ int efa_alloc_ucontext(struct ib_ucontext *ibucontext, struct ib_udata *udata) 
	resp.cmds_supp_udata_mask |= EFA_USER_CMDS_SUPP_UDATA_CREATE_AH;

	resp.sub_cqs_per_cq = dev->dev_attr.sub_cqs_per_cq;

	resp.inline_buf_size = dev->dev_attr.inline_buf_size;

	resp.inline_buf_size_ex = dev->dev_attr.inline_buf_size_ex;

	resp.max_llq_size = dev->dev_attr.max_llq_size;

	resp.max_tx_batch = dev->dev_attr.max_tx_batch;

	resp.min_sq_wr = dev->dev_attr.min_sq_depth;

include/uapi/rdma/efa-abi.h

+3 −2
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */

/*

 * Copyright 2018-2025 Amazon.com, Inc. or its affiliates. All rights reserved.

 * Copyright 2018-2026 Amazon.com, Inc. or its affiliates. All rights reserved.

 */



#ifndef EFA_ABI_USER_H
@@ -44,7 +44,8 @@ struct efa_ibv_alloc_ucontext_resp { 
	__u32 max_llq_size; /* bytes */

	__u16 max_tx_batch; /* units of 64 bytes */

	__u16 min_sq_wr;

	__u8 reserved_a0[4];

	__u16 inline_buf_size_ex;

	__u8 reserved_b0[2];

};



struct efa_ibv_alloc_pd_resp {