Commit 1a79c2b9 authored by Konstantin Taranov's avatar Konstantin Taranov Committed by Leon Romanovsky
Browse files

RDMA/mana_ib: Create and destroy rnic adapter 



Add functions for RNIC creation and destruction.
If creation fails, the ib_probe fails as well.

Signed-off-by: default avatarKonstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1712738551-22075-3-git-send-email-kotaranov@linux.microsoft.com


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 98b889c4

drivers/infiniband/hw/mana/device.c

+8 −1
Original line number Diff line number Diff line
@@ -98,15 +98,21 @@ static int mana_ib_probe(struct auxiliary_device *adev, 
		goto deregister_device;

	}



	ret = mana_ib_gd_create_rnic_adapter(dev);

	if (ret)

		goto destroy_eqs;



	ret = ib_register_device(&dev->ib_dev, "mana_%d",

				 mdev->gdma_context->dev);

	if (ret)

		goto destroy_eqs;

		goto destroy_rnic;



	dev_set_drvdata(&adev->dev, dev);



	return 0;



destroy_rnic:

	mana_ib_gd_destroy_rnic_adapter(dev);

destroy_eqs:

	mana_ib_destroy_eqs(dev);

deregister_device:
@@ -121,6 +127,7 @@ static void mana_ib_remove(struct auxiliary_device *adev) 
	struct mana_ib_dev *dev = dev_get_drvdata(&adev->dev);



	ib_unregister_device(&dev->ib_dev);

	mana_ib_gd_destroy_rnic_adapter(dev);

	mana_ib_destroy_eqs(dev);

	mana_gd_deregister_device(dev->gdma_dev);

	ib_dealloc_device(&dev->ib_dev);

drivers/infiniband/hw/mana/main.c

+43 −0
Original line number Diff line number Diff line
@@ -637,3 +637,46 @@ void mana_ib_destroy_eqs(struct mana_ib_dev *mdev) 
{

	mana_gd_destroy_queue(mdev_to_gc(mdev), mdev->fatal_err_eq);

}



int mana_ib_gd_create_rnic_adapter(struct mana_ib_dev *mdev)

{

	struct mana_rnic_create_adapter_resp resp = {};

	struct mana_rnic_create_adapter_req req = {};

	struct gdma_context *gc = mdev_to_gc(mdev);

	int err;



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

	req.hdr.req.msg_version = GDMA_MESSAGE_V2;

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

	req.notify_eq_id = mdev->fatal_err_eq->id;



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

	if (err) {

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

		return err;

	}

	mdev->adapter_handle = resp.adapter;



	return 0;

}



int mana_ib_gd_destroy_rnic_adapter(struct mana_ib_dev *mdev)

{

	struct mana_rnic_destroy_adapter_resp resp = {};

	struct mana_rnic_destroy_adapter_req req = {};

	struct gdma_context *gc;

	int err;



	gc = mdev_to_gc(mdev);

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

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

	req.adapter = mdev->adapter_handle;



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

	if (err) {

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

		return err;

	}



	return 0;

}

drivers/infiniband/hw/mana/mana_ib.h

+28 −0
Original line number Diff line number Diff line
@@ -54,6 +54,7 @@ struct mana_ib_queue { 
struct mana_ib_dev {

	struct ib_device ib_dev;

	struct gdma_dev *gdma_dev;

	mana_handle_t adapter_handle;

	struct gdma_queue *fatal_err_eq;

	struct mana_ib_adapter_caps adapter_caps;

};
@@ -113,6 +114,8 @@ struct mana_ib_rwq_ind_table { 


enum mana_ib_command_code {

	MANA_IB_GET_ADAPTER_CAP = 0x30001,

	MANA_IB_CREATE_ADAPTER  = 0x30002,

	MANA_IB_DESTROY_ADAPTER = 0x30003,

};



struct mana_ib_query_adapter_caps_req {
@@ -141,6 +144,27 @@ struct mana_ib_query_adapter_caps_resp { 
	u32 max_inline_data_size;

}; /* HW Data */



struct mana_rnic_create_adapter_req {

	struct gdma_req_hdr hdr;

	u32 notify_eq_id;

	u32 reserved;

	u64 feature_flags;

}; /*HW Data */



struct mana_rnic_create_adapter_resp {

	struct gdma_resp_hdr hdr;

	mana_handle_t adapter;

}; /* HW Data */



struct mana_rnic_destroy_adapter_req {

	struct gdma_req_hdr hdr;

	mana_handle_t adapter;

}; /*HW Data */



struct mana_rnic_destroy_adapter_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;
@@ -238,4 +262,8 @@ int mana_ib_gd_query_adapter_caps(struct mana_ib_dev *mdev); 
int mana_ib_create_eqs(struct mana_ib_dev *mdev);



void mana_ib_destroy_eqs(struct mana_ib_dev *mdev);



int mana_ib_gd_create_rnic_adapter(struct mana_ib_dev *mdev);



int mana_ib_gd_destroy_rnic_adapter(struct mana_ib_dev *mdev);

#endif