Commit 35765dcc authored by Cheng Xu's avatar Cheng Xu Committed by Jason Gunthorpe
Browse files

RDMA/erdma: Add a workqueue for WRs reflushing 

ERDMA driver use a workqueue for asynchronous reflush command posting.
Implement the lifecycle of this workqueue.

Link: https://lore.kernel.org/r/20221116023107.82835-2-chengyou@linux.alibaba.com


Signed-off-by: default avatarCheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent b4d46c57

drivers/infiniband/hw/erdma/erdma.h

+1 −0
Original line number Diff line number Diff line
@@ -190,6 +190,7 @@ struct erdma_dev { 
	struct net_device *netdev;

	struct pci_dev *pdev;

	struct notifier_block netdev_nb;

	struct workqueue_struct *reflush_wq;



	resource_size_t func_bar_addr;

	resource_size_t func_bar_len;

drivers/infiniband/hw/erdma/erdma_main.c

+12 −2
Original line number Diff line number Diff line
@@ -521,13 +521,22 @@ static int erdma_ib_device_add(struct pci_dev *pdev) 


	u64_to_ether_addr(mac, dev->attrs.peer_addr);



	dev->reflush_wq = alloc_workqueue("erdma-reflush-wq", WQ_UNBOUND,

					  WQ_UNBOUND_MAX_ACTIVE);

	if (!dev->reflush_wq) {

		ret = -ENOMEM;

		goto err_alloc_workqueue;

	}



	ret = erdma_device_register(dev);

	if (ret)

		goto err_out;

		goto err_register;



	return 0;



err_out:

err_register:

	destroy_workqueue(dev->reflush_wq);

err_alloc_workqueue:

	xa_destroy(&dev->qp_xa);

	xa_destroy(&dev->cq_xa);
@@ -543,6 +552,7 @@ static void erdma_ib_device_remove(struct pci_dev *pdev) 
	unregister_netdevice_notifier(&dev->netdev_nb);

	ib_unregister_device(&dev->ibdev);



	destroy_workqueue(dev->reflush_wq);

	erdma_res_cb_free(dev);

	xa_destroy(&dev->qp_xa);

	xa_destroy(&dev->cq_xa);