int ret = 0;
int ntc;
+ if (hr_dev->is_reset)
+ return 0;
+
spin_lock_bh(&csq->lock);
if (num > hns_roce_cmq_space(csq)) {
{
struct hns_roce_dev *hr_dev = (struct hns_roce_dev *)handle->priv;
+ if (!hr_dev)
+ return;
+
hns_roce_exit(hr_dev);
kfree(hr_dev->priv);
ib_dealloc_device(&hr_dev->ib_dev);
}
+static int hns_roce_hw_v2_reset_notify_down(struct hnae3_handle *handle)
+{
+ struct hns_roce_dev *hr_dev = (struct hns_roce_dev *)handle->priv;
+ struct ib_event event;
+
+ if (!hr_dev) {
+ dev_err(&handle->pdev->dev,
+ "Input parameter handle->priv is NULL!\n");
+ return -EINVAL;
+ }
+
+ hr_dev->active = false;
+ hr_dev->is_reset = true;
+
+ event.event = IB_EVENT_DEVICE_FATAL;
+ event.device = &hr_dev->ib_dev;
+ event.element.port_num = 1;
+ ib_dispatch_event(&event);
+
+ return 0;
+}
+
+static int hns_roce_hw_v2_reset_notify_init(struct hnae3_handle *handle)
+{
+ int ret;
+
+ ret = hns_roce_hw_v2_init_instance(handle);
+ if (ret) {
+ /* when reset notify type is HNAE3_INIT_CLIENT In reset notify
+ * callback function, RoCE Engine reinitialize. If RoCE reinit
+ * failed, we should inform NIC driver.
+ */
+ handle->priv = NULL;
+ dev_err(&handle->pdev->dev,
+ "In reset process RoCE reinit failed %d.\n", ret);
+ }
+
+ return ret;
+}
+
+static int hns_roce_hw_v2_reset_notify_uninit(struct hnae3_handle *handle)
+{
+ msleep(100);
+ hns_roce_hw_v2_uninit_instance(handle, false);
+ return 0;
+}
+
+static int hns_roce_hw_v2_reset_notify(struct hnae3_handle *handle,
+ enum hnae3_reset_notify_type type)
+{
+ int ret = 0;
+
+ switch (type) {
+ case HNAE3_DOWN_CLIENT:
+ ret = hns_roce_hw_v2_reset_notify_down(handle);
+ break;
+ case HNAE3_INIT_CLIENT:
+ ret = hns_roce_hw_v2_reset_notify_init(handle);
+ break;
+ case HNAE3_UNINIT_CLIENT:
+ ret = hns_roce_hw_v2_reset_notify_uninit(handle);
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
static const struct hnae3_client_ops hns_roce_hw_v2_ops = {
.init_instance = hns_roce_hw_v2_init_instance,
.uninit_instance = hns_roce_hw_v2_uninit_instance,
+ .reset_notify = hns_roce_hw_v2_reset_notify,
};
static struct hnae3_client hns_roce_hw_v2_client = {
struct hns_roce_ib_alloc_ucontext_resp resp = {};
struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev);
+ if (!hr_dev->active)
+ return ERR_PTR(-EAGAIN);
+
resp.qp_tab_size = hr_dev->caps.num_qps;
context = kmalloc(sizeof(*context), GFP_KERNEL);
{
struct hns_roce_ib_iboe *iboe = &hr_dev->iboe;
+ hr_dev->active = false;
unregister_netdevice_notifier(&iboe->nb);
ib_unregister_device(&hr_dev->ib_dev);
}
goto error_failed_setup_mtu_mac;
}
+ hr_dev->active = true;
return 0;
error_failed_setup_mtu_mac:
return ret;
}
}
+ hr_dev->is_reset = false;
if (hr_dev->hw->cmq_init) {
ret = hr_dev->hw->cmq_init(hr_dev);
void hns_roce_exit(struct hns_roce_dev *hr_dev)
{
hns_roce_unregister_device(hr_dev);
+
if (hr_dev->hw->hw_exit)
hr_dev->hw->hw_exit(hr_dev);
hns_roce_cleanup_bitmap(hr_dev);