Commit 58434159 authored by Konstantin Taranov's avatar Konstantin Taranov Committed by Leon Romanovsky
Browse files

RDMA/mana_ib: create and destroy RNIC cqs 



Implement RNIC requests for creation and destruction of RNIC CQs.

Signed-off-by: default avatarKonstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1714137160-5222-3-git-send-email-kotaranov@linux.microsoft.com


Reviewed-by: default avatarLong Li <longli@microsoft.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent e73c882f

drivers/infiniband/hw/mana/main.c

+54 −0
Original line number Diff line number Diff line
@@ -834,3 +834,57 @@ int mana_ib_gd_config_mac(struct mana_ib_dev *mdev, enum mana_ib_addr_op op, u8 


	return 0;

}



int mana_ib_gd_create_cq(struct mana_ib_dev *mdev, struct mana_ib_cq *cq, u32 doorbell)

{

	struct gdma_context *gc = mdev_to_gc(mdev);

	struct mana_rnic_create_cq_resp resp = {};

	struct mana_rnic_create_cq_req req = {};

	int err;



	mana_gd_init_req_hdr(&req.hdr, MANA_IB_CREATE_CQ, sizeof(req), sizeof(resp));

	req.hdr.dev_id = gc->mana_ib.dev_id;

	req.adapter = mdev->adapter_handle;

	req.gdma_region = cq->queue.gdma_region;

	req.eq_id = mdev->eqs[cq->comp_vector]->id;

	req.doorbell_page = doorbell;



	err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);



	if (err) {

		ibdev_err(&mdev->ib_dev, "Failed to create cq err %d", err);

		return err;

	}



	cq->queue.id  = resp.cq_id;

	cq->cq_handle = resp.cq_handle;

	/* The GDMA region is now owned by the CQ handle */

	cq->queue.gdma_region = GDMA_INVALID_DMA_REGION;



	return 0;

}



int mana_ib_gd_destroy_cq(struct mana_ib_dev *mdev, struct mana_ib_cq *cq)

{

	struct gdma_context *gc = mdev_to_gc(mdev);

	struct mana_rnic_destroy_cq_resp resp = {};

	struct mana_rnic_destroy_cq_req req = {};

	int err;



	if (cq->cq_handle == INVALID_MANA_HANDLE)

		return 0;



	mana_gd_init_req_hdr(&req.hdr, MANA_IB_DESTROY_CQ, sizeof(req), sizeof(resp));

	req.hdr.dev_id = gc->mana_ib.dev_id;

	req.adapter = mdev->adapter_handle;

	req.cq_handle = cq->cq_handle;



	err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);



	if (err) {

		ibdev_err(&mdev->ib_dev, "Failed to destroy cq err %d", err);

		return err;

	}



	return 0;

}

drivers/infiniband/hw/mana/mana_ib.h

+32 −0
Original line number Diff line number Diff line
@@ -92,6 +92,7 @@ struct mana_ib_cq { 
	struct mana_ib_queue queue;

	int cqe;

	u32 comp_vector;

	mana_handle_t  cq_handle;

};



struct mana_ib_qp {
@@ -119,6 +120,8 @@ enum mana_ib_command_code { 
	MANA_IB_DESTROY_ADAPTER = 0x30003,

	MANA_IB_CONFIG_IP_ADDR	= 0x30004,

	MANA_IB_CONFIG_MAC_ADDR	= 0x30005,

	MANA_IB_CREATE_CQ       = 0x30008,

	MANA_IB_DESTROY_CQ      = 0x30009,

};



struct mana_ib_query_adapter_caps_req {
@@ -202,6 +205,31 @@ struct mana_rnic_config_mac_addr_resp { 
	struct gdma_resp_hdr hdr;

}; /* HW Data */



struct mana_rnic_create_cq_req {

	struct gdma_req_hdr hdr;

	mana_handle_t adapter;

	u64 gdma_region;

	u32 eq_id;

	u32 doorbell_page;

}; /* HW Data */



struct mana_rnic_create_cq_resp {

	struct gdma_resp_hdr hdr;

	mana_handle_t cq_handle;

	u32 cq_id;

	u32 reserved;

}; /* HW Data */



struct mana_rnic_destroy_cq_req {

	struct gdma_req_hdr hdr;

	mana_handle_t adapter;

	mana_handle_t cq_handle;

}; /* HW Data */



struct mana_rnic_destroy_cq_resp {

	struct gdma_resp_hdr hdr;

}; /* HW Data */



static inline struct gdma_context *mdev_to_gc(struct mana_ib_dev *mdev)

{

	return mdev->gdma_dev->gdma_context;
@@ -321,4 +349,8 @@ int mana_ib_gd_add_gid(const struct ib_gid_attr *attr, void **context); 
int mana_ib_gd_del_gid(const struct ib_gid_attr *attr, void **context);



int mana_ib_gd_config_mac(struct mana_ib_dev *mdev, enum mana_ib_addr_op op, u8 *mac);



int mana_ib_gd_create_cq(struct mana_ib_dev *mdev, struct mana_ib_cq *cq, u32 doorbell);



int mana_ib_gd_destroy_cq(struct mana_ib_dev *mdev, struct mana_ib_cq *cq);

#endif