Commit 7fea3278 authored by Kalesh AP's avatar Kalesh AP Committed by Leon Romanovsky
Browse files

RDMA/bnxt_re: Add Async event handling support 



Using the option provided by Ethernet driver, register for FW Async
event. During probe, while registeriung with Ethernet driver, provide
the ulp hook 'ulp_async_notifier' for receiving the firmware events.

Signed-off-by: default avatarSelvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: default avatarKalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20250107024553.2926983-3-kalesh-anakkur.purayil@broadcom.com


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 184fe6f2

drivers/infiniband/hw/bnxt_re/bnxt_re.h

+1 −0
Original line number Diff line number Diff line
@@ -229,6 +229,7 @@ struct bnxt_re_dev { 
	DECLARE_HASHTABLE(srq_hash, MAX_SRQ_HASH_BITS);

	struct dentry			*dbg_root;

	struct dentry			*qp_debugfs;

	unsigned long			event_bitmap;

};



#define to_bnxt_re_dev(ptr, member)	\

drivers/infiniband/hw/bnxt_re/main.c

+39 −0
Original line number Diff line number Diff line
@@ -295,6 +295,20 @@ static void bnxt_re_vf_res_config(struct bnxt_re_dev *rdev) 
				      &rdev->qplib_ctx);

}



static void bnxt_re_async_notifier(void *handle, struct hwrm_async_event_cmpl *cmpl)

{

	struct bnxt_re_dev *rdev = (struct bnxt_re_dev *)handle;

	u32 data1, data2;

	u16 event_id;



	event_id = le16_to_cpu(cmpl->event_id);

	data1 = le32_to_cpu(cmpl->event_data1);

	data2 = le32_to_cpu(cmpl->event_data2);



	ibdev_dbg(&rdev->ibdev, "Async event_id = %d data1 = %d data2 = %d",

		  event_id, data1, data2);

}



static void bnxt_re_stop_irq(void *handle)

{

	struct bnxt_re_en_dev_info *en_info = auxiliary_get_drvdata(handle);
@@ -361,6 +375,7 @@ static void bnxt_re_start_irq(void *handle, struct bnxt_msix_entry *ent) 
}



static struct bnxt_ulp_ops bnxt_re_ulp_ops = {

	.ulp_async_notifier = bnxt_re_async_notifier,

	.ulp_irq_stop = bnxt_re_stop_irq,

	.ulp_irq_restart = bnxt_re_start_irq

};
@@ -1785,6 +1800,26 @@ static int bnxt_re_setup_qos(struct bnxt_re_dev *rdev) 
	return 0;

}



static void bnxt_re_net_unregister_async_event(struct bnxt_re_dev *rdev)

{

	if (rdev->is_virtfn)

		return;



	memset(&rdev->event_bitmap, 0, sizeof(rdev->event_bitmap));

	bnxt_register_async_events(rdev->en_dev, &rdev->event_bitmap,

				   ASYNC_EVENT_CMPL_EVENT_ID_DCB_CONFIG_CHANGE);

}



static void bnxt_re_net_register_async_event(struct bnxt_re_dev *rdev)

{

	if (rdev->is_virtfn)

		return;



	rdev->event_bitmap |= (1 << ASYNC_EVENT_CMPL_EVENT_ID_DCB_CONFIG_CHANGE);

	bnxt_register_async_events(rdev->en_dev, &rdev->event_bitmap,

				   ASYNC_EVENT_CMPL_EVENT_ID_DCB_CONFIG_CHANGE);

}



static void bnxt_re_query_hwrm_intf_version(struct bnxt_re_dev *rdev)

{

	struct bnxt_en_dev *en_dev = rdev->en_dev;
@@ -1864,6 +1899,8 @@ static void bnxt_re_dev_uninit(struct bnxt_re_dev *rdev, u8 op_type) 


	bnxt_re_debugfs_rem_pdev(rdev);



	bnxt_re_net_unregister_async_event(rdev);



	if (test_and_clear_bit(BNXT_RE_FLAG_QOS_WORK_REG, &rdev->flags))

		cancel_delayed_work_sync(&rdev->worker);
@@ -2077,6 +2114,8 @@ static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 op_type) 


	bnxt_re_debugfs_add_pdev(rdev);



	bnxt_re_net_register_async_event(rdev);



	return 0;

free_sctx:

	bnxt_re_net_stats_ctx_free(rdev, rdev->qplib_ctx.stats.fw_id);

drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c

+2 −4
Original line number Diff line number Diff line
@@ -373,9 +373,8 @@ void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl) 
	rcu_read_unlock();

}



int bnxt_register_async_events(struct bnxt_en_dev *edev,

			       unsigned long *events_bmap,

			       u16 max_id)

void bnxt_register_async_events(struct bnxt_en_dev *edev,

				unsigned long *events_bmap, u16 max_id)

{

	struct net_device *dev = edev->net;

	struct bnxt *bp = netdev_priv(dev);
@@ -387,7 +386,6 @@ int bnxt_register_async_events(struct bnxt_en_dev *edev, 
	smp_wmb();

	ulp->max_async_event_id = max_id;

	bnxt_hwrm_func_drv_rgtr(bp, events_bmap, max_id + 1, true);

	return 0;

}

EXPORT_SYMBOL(bnxt_register_async_events);

drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h

+2 −2
Original line number Diff line number Diff line
@@ -126,6 +126,6 @@ int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops, 
		      void *handle);

void bnxt_unregister_dev(struct bnxt_en_dev *edev);

int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg);

int bnxt_register_async_events(struct bnxt_en_dev *edev,

void bnxt_register_async_events(struct bnxt_en_dev *edev,

				unsigned long *events_bmap, u16 max_id);

#endif