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RDMA/erdma: Add a workqueue for WRs reflushing

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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: Cheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Cheng Xu
2022-11-16 10:31:05 +08:00
committed by Jason Gunthorpe
parent b4d46c57d2
commit 35765dccaf
2 changed files with 13 additions and 2 deletions
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1
drivers/infiniband/hw/erdma/erdma.h
View File

@@ -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;

14
drivers/infiniband/hw/erdma/erdma_main.c
View File

@@ -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);