| Message ID | 1547879009-39383-1-git-send-email-tanxiaofei@huawei.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | 2b9acb9a97fe9b4101ca020643760c4a090b4cb4 |
| Delegated to: | Jason Gunthorpe |
| Headers | show |
| Series | [resend,v3,rdma-next,1/1] RDMA/hns: Add the process of AEQ overflow for hip08 | expand |
On Sat, Jan 19, 2019 at 02:23:29PM +0800, Xiaofei Tan wrote: > AEQ overflow will be reported by hardware when too many > asynchronous events occurred but not be handled in time. > Normally, AEQ overflow error is not easy to occur. Once > happened, we have to do physical function reset to recover. > PF reset is implemented in two steps. Firstly, set reset > level with ae_dev->ops->set_default_reset_request. > Secondly, run reset with ae_dev->ops->reset_event. > > Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com> > Signed-off-by: Yixian Liu <liuyixian@huawei.com> > --- > drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) Applied to for-next Thanks, Jason
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index d778457..fb990ff 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -4702,11 +4702,22 @@ static irqreturn_t hns_roce_v2_msix_interrupt_abn(int irq, void *dev_id) int_en = roce_read(hr_dev, ROCEE_VF_ABN_INT_EN_REG); if (roce_get_bit(int_st, HNS_ROCE_V2_VF_INT_ST_AEQ_OVERFLOW_S)) { + struct pci_dev *pdev = hr_dev->pci_dev; + struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); + const struct hnae3_ae_ops *ops = ae_dev->ops; + dev_err(dev, "AEQ overflow!\n"); roce_set_bit(int_st, HNS_ROCE_V2_VF_INT_ST_AEQ_OVERFLOW_S, 1); roce_write(hr_dev, ROCEE_VF_ABN_INT_ST_REG, int_st); + /* Set reset level for reset_event() */ + if (ops->set_default_reset_request) + ops->set_default_reset_request(ae_dev, + HNAE3_FUNC_RESET); + if (ops->reset_event) + ops->reset_event(pdev, NULL); + roce_set_bit(int_en, HNS_ROCE_V2_VF_ABN_INT_EN_S, 1); roce_write(hr_dev, ROCEE_VF_ABN_INT_EN_REG, int_en);