Commit e9c6c537 authored by Gal Pressman's avatar Gal Pressman Committed by Jason Gunthorpe
Browse files

RDMA/efa: Add common command handlers 



Add the EFA common commands implementation.

Signed-off-by: default avatarGal Pressman <galpress@amazon.com>
Reviewed-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 0420e542

drivers/infiniband/hw/efa/efa_com_cmd.c

0 → 100644
+692 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause

/*

 * Copyright 2018-2019 Amazon.com, Inc. or its affiliates. All rights reserved.

 */



#include "efa.h"

#include "efa_com.h"

#include "efa_com_cmd.h"



void efa_com_set_dma_addr(dma_addr_t addr, u32 *addr_high, u32 *addr_low)

{

	*addr_low = lower_32_bits(addr);

	*addr_high = upper_32_bits(addr);

}



int efa_com_create_qp(struct efa_com_dev *edev,

		      struct efa_com_create_qp_params *params,

		      struct efa_com_create_qp_result *res)

{

	struct efa_admin_create_qp_cmd create_qp_cmd = {};

	struct efa_admin_create_qp_resp cmd_completion;

	struct efa_com_admin_queue *aq = &edev->aq;

	int err;



	create_qp_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_QP;



	create_qp_cmd.pd = params->pd;

	create_qp_cmd.qp_type = params->qp_type;

	create_qp_cmd.rq_base_addr = params->rq_base_addr;

	create_qp_cmd.send_cq_idx = params->send_cq_idx;

	create_qp_cmd.recv_cq_idx = params->recv_cq_idx;

	create_qp_cmd.qp_alloc_size.send_queue_ring_size =

		params->sq_ring_size_in_bytes;

	create_qp_cmd.qp_alloc_size.send_queue_depth =

			params->sq_depth;

	create_qp_cmd.qp_alloc_size.recv_queue_ring_size =

			params->rq_ring_size_in_bytes;

	create_qp_cmd.qp_alloc_size.recv_queue_depth =

			params->rq_depth;

	create_qp_cmd.uar = params->uarn;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&create_qp_cmd,

			       sizeof(create_qp_cmd),

			       (struct efa_admin_acq_entry *)&cmd_completion,

			       sizeof(cmd_completion));

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to create qp [%d]\n", err);

		return err;

	}



	res->qp_handle = cmd_completion.qp_handle;

	res->qp_num = cmd_completion.qp_num;

	res->sq_db_offset = cmd_completion.sq_db_offset;

	res->rq_db_offset = cmd_completion.rq_db_offset;

	res->llq_descriptors_offset = cmd_completion.llq_descriptors_offset;

	res->send_sub_cq_idx = cmd_completion.send_sub_cq_idx;

	res->recv_sub_cq_idx = cmd_completion.recv_sub_cq_idx;



	return err;

}



int efa_com_modify_qp(struct efa_com_dev *edev,

		      struct efa_com_modify_qp_params *params)

{

	struct efa_com_admin_queue *aq = &edev->aq;

	struct efa_admin_modify_qp_cmd cmd = {};

	struct efa_admin_modify_qp_resp resp;

	int err;



	cmd.aq_common_desc.opcode = EFA_ADMIN_MODIFY_QP;

	cmd.modify_mask = params->modify_mask;

	cmd.qp_handle = params->qp_handle;

	cmd.qp_state = params->qp_state;

	cmd.cur_qp_state = params->cur_qp_state;

	cmd.qkey = params->qkey;

	cmd.sq_psn = params->sq_psn;

	cmd.sq_drained_async_notify = params->sq_drained_async_notify;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&cmd,

			       sizeof(cmd),

			       (struct efa_admin_acq_entry *)&resp,

			       sizeof(resp));

	if (err) {

		ibdev_err(edev->efa_dev,

			  "Failed to modify qp-%u modify_mask[%#x] [%d]\n",

			  cmd.qp_handle, cmd.modify_mask, err);

		return err;

	}



	return 0;

}



int efa_com_query_qp(struct efa_com_dev *edev,

		     struct efa_com_query_qp_params *params,

		     struct efa_com_query_qp_result *result)

{

	struct efa_com_admin_queue *aq = &edev->aq;

	struct efa_admin_query_qp_cmd cmd = {};

	struct efa_admin_query_qp_resp resp;

	int err;



	cmd.aq_common_desc.opcode = EFA_ADMIN_QUERY_QP;

	cmd.qp_handle = params->qp_handle;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&cmd,

			       sizeof(cmd),

			       (struct efa_admin_acq_entry *)&resp,

			       sizeof(resp));

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to query qp-%u [%d]\n",

			  cmd.qp_handle, err);

		return err;

	}



	result->qp_state = resp.qp_state;

	result->qkey = resp.qkey;

	result->sq_draining = resp.sq_draining;

	result->sq_psn = resp.sq_psn;



	return 0;

}



int efa_com_destroy_qp(struct efa_com_dev *edev,

		       struct efa_com_destroy_qp_params *params)

{

	struct efa_admin_destroy_qp_resp cmd_completion;

	struct efa_admin_destroy_qp_cmd qp_cmd = {};

	struct efa_com_admin_queue *aq = &edev->aq;

	int err;



	qp_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_QP;

	qp_cmd.qp_handle = params->qp_handle;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&qp_cmd,

			       sizeof(qp_cmd),

			       (struct efa_admin_acq_entry *)&cmd_completion,

			       sizeof(cmd_completion));

	if (err)

		ibdev_err(edev->efa_dev, "Failed to destroy qp-%u [%d]\n",

			  qp_cmd.qp_handle, err);



	return 0;

}



int efa_com_create_cq(struct efa_com_dev *edev,

		      struct efa_com_create_cq_params *params,

		      struct efa_com_create_cq_result *result)

{

	struct efa_admin_create_cq_resp cmd_completion;

	struct efa_admin_create_cq_cmd create_cmd = {};

	struct efa_com_admin_queue *aq = &edev->aq;

	int err;



	create_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_CQ;

	create_cmd.cq_caps_2 = (params->entry_size_in_bytes / 4) &

				EFA_ADMIN_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS_MASK;

	create_cmd.cq_depth = params->cq_depth;

	create_cmd.num_sub_cqs = params->num_sub_cqs;

	create_cmd.uar = params->uarn;



	efa_com_set_dma_addr(params->dma_addr,

			     &create_cmd.cq_ba.mem_addr_high,

			     &create_cmd.cq_ba.mem_addr_low);



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&create_cmd,

			       sizeof(create_cmd),

			       (struct efa_admin_acq_entry *)&cmd_completion,

			       sizeof(cmd_completion));

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to create cq[%d]\n", err);

		return err;

	}



	result->cq_idx = cmd_completion.cq_idx;

	result->actual_depth = params->cq_depth;



	return err;

}



int efa_com_destroy_cq(struct efa_com_dev *edev,

		       struct efa_com_destroy_cq_params *params)

{

	struct efa_admin_destroy_cq_cmd destroy_cmd = {};

	struct efa_admin_destroy_cq_resp destroy_resp;

	struct efa_com_admin_queue *aq = &edev->aq;

	int err;



	destroy_cmd.cq_idx = params->cq_idx;

	destroy_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_CQ;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&destroy_cmd,

			       sizeof(destroy_cmd),

			       (struct efa_admin_acq_entry *)&destroy_resp,

			       sizeof(destroy_resp));



	if (err)

		ibdev_err(edev->efa_dev, "Failed to destroy CQ-%u [%d]\n",

			  params->cq_idx, err);



	return 0;

}



int efa_com_register_mr(struct efa_com_dev *edev,

			struct efa_com_reg_mr_params *params,

			struct efa_com_reg_mr_result *result)

{

	struct efa_admin_reg_mr_resp cmd_completion;

	struct efa_com_admin_queue *aq = &edev->aq;

	struct efa_admin_reg_mr_cmd mr_cmd = {};

	int err;



	mr_cmd.aq_common_desc.opcode = EFA_ADMIN_REG_MR;

	mr_cmd.pd = params->pd;

	mr_cmd.mr_length = params->mr_length_in_bytes;

	mr_cmd.flags |= params->page_shift &

		EFA_ADMIN_REG_MR_CMD_PHYS_PAGE_SIZE_SHIFT_MASK;

	mr_cmd.iova = params->iova;

	mr_cmd.permissions |= params->permissions &

			      EFA_ADMIN_REG_MR_CMD_LOCAL_WRITE_ENABLE_MASK;



	if (params->inline_pbl) {

		memcpy(mr_cmd.pbl.inline_pbl_array,

		       params->pbl.inline_pbl_array,

		       sizeof(mr_cmd.pbl.inline_pbl_array));

	} else {

		mr_cmd.pbl.pbl.length = params->pbl.pbl.length;

		mr_cmd.pbl.pbl.address.mem_addr_low =

			params->pbl.pbl.address.mem_addr_low;

		mr_cmd.pbl.pbl.address.mem_addr_high =

			params->pbl.pbl.address.mem_addr_high;

		mr_cmd.aq_common_desc.flags |=

			EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_MASK;

		if (params->indirect)

			mr_cmd.aq_common_desc.flags |=

				EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK;

	}



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&mr_cmd,

			       sizeof(mr_cmd),

			       (struct efa_admin_acq_entry *)&cmd_completion,

			       sizeof(cmd_completion));

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to register mr [%d]\n", err);

		return err;

	}



	result->l_key = cmd_completion.l_key;

	result->r_key = cmd_completion.r_key;



	return 0;

}



int efa_com_dereg_mr(struct efa_com_dev *edev,

		     struct efa_com_dereg_mr_params *params)

{

	struct efa_admin_dereg_mr_resp cmd_completion;

	struct efa_com_admin_queue *aq = &edev->aq;

	struct efa_admin_dereg_mr_cmd mr_cmd = {};

	int err;



	mr_cmd.aq_common_desc.opcode = EFA_ADMIN_DEREG_MR;

	mr_cmd.l_key = params->l_key;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&mr_cmd,

			       sizeof(mr_cmd),

			       (struct efa_admin_acq_entry *)&cmd_completion,

			       sizeof(cmd_completion));

	if (err)

		ibdev_err(edev->efa_dev,

			  "Failed to de-register mr(lkey-%u) [%d]\n",

			  mr_cmd.l_key, err);



	return 0;

}



int efa_com_create_ah(struct efa_com_dev *edev,

		      struct efa_com_create_ah_params *params,

		      struct efa_com_create_ah_result *result)

{

	struct efa_admin_create_ah_resp cmd_completion;

	struct efa_com_admin_queue *aq = &edev->aq;

	struct efa_admin_create_ah_cmd ah_cmd = {};

	int err;



	ah_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_AH;



	memcpy(ah_cmd.dest_addr, params->dest_addr, sizeof(ah_cmd.dest_addr));

	ah_cmd.pd = params->pdn;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&ah_cmd,

			       sizeof(ah_cmd),

			       (struct efa_admin_acq_entry *)&cmd_completion,

			       sizeof(cmd_completion));

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to create ah [%d]\n", err);

		return err;

	}



	result->ah = cmd_completion.ah;



	return 0;

}



int efa_com_destroy_ah(struct efa_com_dev *edev,

		       struct efa_com_destroy_ah_params *params)

{

	struct efa_admin_destroy_ah_resp cmd_completion;

	struct efa_admin_destroy_ah_cmd ah_cmd = {};

	struct efa_com_admin_queue *aq = &edev->aq;

	int err;



	ah_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_AH;

	ah_cmd.ah = params->ah;

	ah_cmd.pd = params->pdn;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&ah_cmd,

			       sizeof(ah_cmd),

			       (struct efa_admin_acq_entry *)&cmd_completion,

			       sizeof(cmd_completion));

	if (err)

		ibdev_err(edev->efa_dev, "Failed to destroy ah-%d pd-%d [%d]\n",

			  ah_cmd.ah, ah_cmd.pd, err);



	return 0;

}



static bool

efa_com_check_supported_feature_id(struct efa_com_dev *edev,

				   enum efa_admin_aq_feature_id feature_id)

{

	u32 feature_mask = 1 << feature_id;



	/* Device attributes is always supported */

	if (feature_id != EFA_ADMIN_DEVICE_ATTR &&

	    !(edev->supported_features & feature_mask))

		return false;



	return true;

}



static int efa_com_get_feature_ex(struct efa_com_dev *edev,

				  struct efa_admin_get_feature_resp *get_resp,

				  enum efa_admin_aq_feature_id feature_id,

				  dma_addr_t control_buf_dma_addr,

				  u32 control_buff_size)

{

	struct efa_admin_get_feature_cmd get_cmd = {};

	struct efa_com_admin_queue *aq;

	int err;



	if (!efa_com_check_supported_feature_id(edev, feature_id)) {

		ibdev_err(edev->efa_dev, "Feature %d isn't supported\n",

			  feature_id);

		return -EOPNOTSUPP;

	}



	aq = &edev->aq;



	get_cmd.aq_common_descriptor.opcode = EFA_ADMIN_GET_FEATURE;



	if (control_buff_size)

		get_cmd.aq_common_descriptor.flags =

			EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK;





	efa_com_set_dma_addr(control_buf_dma_addr,

			     &get_cmd.control_buffer.address.mem_addr_high,

			     &get_cmd.control_buffer.address.mem_addr_low);



	get_cmd.control_buffer.length = control_buff_size;

	get_cmd.feature_common.feature_id = feature_id;

	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)

			       &get_cmd,

			       sizeof(get_cmd),

			       (struct efa_admin_acq_entry *)

			       get_resp,

			       sizeof(*get_resp));



	if (err)

		ibdev_err(edev->efa_dev,

			  "Failed to submit get_feature command %d [%d]\n",

			  feature_id, err);



	return 0;

}



static int efa_com_get_feature(struct efa_com_dev *edev,

			       struct efa_admin_get_feature_resp *get_resp,

			       enum efa_admin_aq_feature_id feature_id)

{

	return efa_com_get_feature_ex(edev, get_resp, feature_id, 0, 0);

}



int efa_com_get_network_attr(struct efa_com_dev *edev,

			     struct efa_com_get_network_attr_result *result)

{

	struct efa_admin_get_feature_resp resp;

	int err;



	err = efa_com_get_feature(edev, &resp,

				  EFA_ADMIN_NETWORK_ATTR);

	if (err) {

		ibdev_err(edev->efa_dev,

			  "Failed to get network attributes %d\n", err);

		return err;

	}



	memcpy(result->addr, resp.u.network_attr.addr,

	       sizeof(resp.u.network_attr.addr));

	result->mtu = resp.u.network_attr.mtu;



	return 0;

}



int efa_com_get_device_attr(struct efa_com_dev *edev,

			    struct efa_com_get_device_attr_result *result)

{

	struct efa_admin_get_feature_resp resp;

	int err;



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

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to get device attributes %d\n",

			  err);

		return err;

	}



	result->page_size_cap = resp.u.device_attr.page_size_cap;

	result->fw_version = resp.u.device_attr.fw_version;

	result->admin_api_version = resp.u.device_attr.admin_api_version;

	result->device_version = resp.u.device_attr.device_version;

	result->supported_features = resp.u.device_attr.supported_features;

	result->phys_addr_width = resp.u.device_attr.phys_addr_width;

	result->virt_addr_width = resp.u.device_attr.virt_addr_width;

	result->db_bar = resp.u.device_attr.db_bar;



	if (result->admin_api_version < 1) {

		ibdev_err(edev->efa_dev,

			  "Failed to get device attr api version [%u < 1]\n",

			  result->admin_api_version);

		return -EINVAL;

	}



	edev->supported_features = resp.u.device_attr.supported_features;

	err = efa_com_get_feature(edev, &resp,

				  EFA_ADMIN_QUEUE_ATTR);

	if (err) {

		ibdev_err(edev->efa_dev,

			  "Failed to get network attributes %d\n", err);

		return err;

	}



	result->max_qp = resp.u.queue_attr.max_qp;

	result->max_sq_depth = resp.u.queue_attr.max_sq_depth;

	result->max_rq_depth = resp.u.queue_attr.max_rq_depth;

	result->max_cq = resp.u.queue_attr.max_cq;

	result->max_cq_depth = resp.u.queue_attr.max_cq_depth;

	result->inline_buf_size = resp.u.queue_attr.inline_buf_size;

	result->max_sq_sge = resp.u.queue_attr.max_wr_send_sges;

	result->max_rq_sge = resp.u.queue_attr.max_wr_recv_sges;

	result->max_mr = resp.u.queue_attr.max_mr;

	result->max_mr_pages = resp.u.queue_attr.max_mr_pages;

	result->max_pd = resp.u.queue_attr.max_pd;

	result->max_ah = resp.u.queue_attr.max_ah;

	result->max_llq_size = resp.u.queue_attr.max_llq_size;

	result->sub_cqs_per_cq = resp.u.queue_attr.sub_cqs_per_cq;



	return 0;

}



int efa_com_get_hw_hints(struct efa_com_dev *edev,

			 struct efa_com_get_hw_hints_result *result)

{

	struct efa_admin_get_feature_resp resp;

	int err;



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

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to get hw hints %d\n", err);

		return err;

	}



	result->admin_completion_timeout = resp.u.hw_hints.admin_completion_timeout;

	result->driver_watchdog_timeout = resp.u.hw_hints.driver_watchdog_timeout;

	result->mmio_read_timeout = resp.u.hw_hints.mmio_read_timeout;

	result->poll_interval = resp.u.hw_hints.poll_interval;



	return 0;

}



static int efa_com_set_feature_ex(struct efa_com_dev *edev,

				  struct efa_admin_set_feature_resp *set_resp,

				  struct efa_admin_set_feature_cmd *set_cmd,

				  enum efa_admin_aq_feature_id feature_id,

				  dma_addr_t control_buf_dma_addr,

				  u32 control_buff_size)

{

	struct efa_com_admin_queue *aq;

	int err;



	if (!efa_com_check_supported_feature_id(edev, feature_id)) {

		ibdev_err(edev->efa_dev, "Feature %d isn't supported\n",

			  feature_id);

		return -EOPNOTSUPP;

	}



	aq = &edev->aq;



	set_cmd->aq_common_descriptor.opcode = EFA_ADMIN_SET_FEATURE;

	if (control_buff_size) {

		set_cmd->aq_common_descriptor.flags =

			EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT_MASK;

		efa_com_set_dma_addr(control_buf_dma_addr,

				     &set_cmd->control_buffer.address.mem_addr_high,

				     &set_cmd->control_buffer.address.mem_addr_low);

	}



	set_cmd->control_buffer.length = control_buff_size;

	set_cmd->feature_common.feature_id = feature_id;

	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)set_cmd,

			       sizeof(*set_cmd),

			       (struct efa_admin_acq_entry *)set_resp,

			       sizeof(*set_resp));



	if (err)

		ibdev_err(edev->efa_dev,

			  "Failed to submit set_feature command %d error: %d\n",

			  feature_id, err);



	return 0;

}



static int efa_com_set_feature(struct efa_com_dev *edev,

			       struct efa_admin_set_feature_resp *set_resp,

			       struct efa_admin_set_feature_cmd *set_cmd,

			       enum efa_admin_aq_feature_id feature_id)

{

	return efa_com_set_feature_ex(edev, set_resp, set_cmd, feature_id,

				      0, 0);

}



int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups)

{

	struct efa_admin_get_feature_resp get_resp;

	struct efa_admin_set_feature_resp set_resp;

	struct efa_admin_set_feature_cmd cmd = {};

	int err;



	ibdev_dbg(edev->efa_dev, "Configuring aenq with groups[%#x]\n", groups);



	err = efa_com_get_feature(edev, &get_resp, EFA_ADMIN_AENQ_CONFIG);

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to get aenq attributes: %d\n",

			  err);

		return err;

	}



	ibdev_dbg(edev->efa_dev,

		  "Get aenq groups: supported[%#x] enabled[%#x]\n",

		  get_resp.u.aenq.supported_groups,

		  get_resp.u.aenq.enabled_groups);



	if ((get_resp.u.aenq.supported_groups & groups) != groups) {

		ibdev_err(edev->efa_dev,

			  "Trying to set unsupported aenq groups[%#x] supported[%#x]\n",

			  groups, get_resp.u.aenq.supported_groups);

		return -EOPNOTSUPP;

	}



	cmd.u.aenq.enabled_groups = groups;

	err = efa_com_set_feature(edev, &set_resp, &cmd,

				  EFA_ADMIN_AENQ_CONFIG);

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to set aenq attributes: %d\n",

			  err);

		return err;

	}



	return 0;

}



int efa_com_alloc_pd(struct efa_com_dev *edev,

		     struct efa_com_alloc_pd_result *result)

{

	struct efa_com_admin_queue *aq = &edev->aq;

	struct efa_admin_alloc_pd_cmd cmd = {};

	struct efa_admin_alloc_pd_resp resp;

	int err;



	cmd.aq_common_descriptor.opcode = EFA_ADMIN_ALLOC_PD;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&cmd,

			       sizeof(cmd),

			       (struct efa_admin_acq_entry *)&resp,

			       sizeof(resp));

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to allocate pd[%d]\n", err);

		return err;

	}



	result->pdn = resp.pd;



	return 0;

}



int efa_com_dealloc_pd(struct efa_com_dev *edev,

		       struct efa_com_dealloc_pd_params *params)

{

	struct efa_com_admin_queue *aq = &edev->aq;

	struct efa_admin_dealloc_pd_cmd cmd = {};

	struct efa_admin_dealloc_pd_resp resp;

	int err;



	cmd.aq_common_descriptor.opcode = EFA_ADMIN_DEALLOC_PD;

	cmd.pd = params->pdn;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&cmd,

			       sizeof(cmd),

			       (struct efa_admin_acq_entry *)&resp,

			       sizeof(resp));

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to deallocate pd-%u [%d]\n",

			  cmd.pd, err);

		return err;

	}



	return 0;

}



int efa_com_alloc_uar(struct efa_com_dev *edev,

		      struct efa_com_alloc_uar_result *result)

{

	struct efa_com_admin_queue *aq = &edev->aq;

	struct efa_admin_alloc_uar_cmd cmd = {};

	struct efa_admin_alloc_uar_resp resp;

	int err;



	cmd.aq_common_descriptor.opcode = EFA_ADMIN_ALLOC_UAR;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&cmd,

			       sizeof(cmd),

			       (struct efa_admin_acq_entry *)&resp,

			       sizeof(resp));

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to allocate uar[%d]\n", err);

		return err;

	}



	result->uarn = resp.uar;



	return 0;

}



int efa_com_dealloc_uar(struct efa_com_dev *edev,

			struct efa_com_dealloc_uar_params *params)

{

	struct efa_com_admin_queue *aq = &edev->aq;

	struct efa_admin_dealloc_uar_cmd cmd = {};

	struct efa_admin_dealloc_uar_resp resp;

	int err;



	cmd.aq_common_descriptor.opcode = EFA_ADMIN_DEALLOC_UAR;

	cmd.uar = params->uarn;



	err = efa_com_cmd_exec(aq,

			       (struct efa_admin_aq_entry *)&cmd,

			       sizeof(cmd),

			       (struct efa_admin_acq_entry *)&resp,

			       sizeof(resp));

	if (err) {

		ibdev_err(edev->efa_dev, "Failed to deallocate uar-%u [%d]\n",

			  cmd.uar, err);

		return err;

	}



	return 0;

}