[v4] vdpa/ifc: fix update_datapath error handling
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Commit Message
Stop and return the error code when update_datapath fails.
update_datapath prepares resources for the vdpa device.
The driver should not perform any further actions
if update_datapath returns an error.
Fixes: a3f8150eac6d ("net/ifcvf: add ifcvf vDPA driver")
Cc: stable@dpdk.org
Signed-off-by: Taekyung Kim <kim.tae.kyung@navercorp.com>
---
v4:
* Add rte_vdpa_unregister_device in ifcvf_pci_probe
v3:
* Fix coding style
v2:
* Revert the prepared resources before returning an error
* Rebase to 22.11 rc2
* Add fixes and cc for backport
---
drivers/vdpa/ifc/ifcvf_vdpa.c | 27 +++++++++++++++++++++++----
1 file changed, 23 insertions(+), 4 deletions(-)
@@ -1098,7 +1098,12 @@ ifcvf_dev_config(int vid)
internal = list->internal;
internal->vid = vid;
rte_atomic32_set(&internal->dev_attached, 1);
- update_datapath(internal);
+ if (update_datapath(internal) < 0) {
+ DRV_LOG(ERR, "failed to update datapath for vDPA device %s",
+ vdev->device->name);
+ rte_atomic32_set(&internal->dev_attached, 0);
+ return -1;
+ }
hw = &internal->hw;
for (i = 0; i < hw->nr_vring; i++) {
@@ -1146,7 +1151,12 @@ ifcvf_dev_close(int vid)
internal->sw_fallback_running = false;
} else {
rte_atomic32_set(&internal->dev_attached, 0);
- update_datapath(internal);
+ if (update_datapath(internal) < 0) {
+ DRV_LOG(ERR, "failed to update datapath for vDPA device %s",
+ vdev->device->name);
+ internal->configured = 0;
+ return -1;
+ }
}
internal->configured = 0;
@@ -1752,7 +1762,15 @@ ifcvf_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
}
rte_atomic32_set(&internal->started, 1);
- update_datapath(internal);
+ if (update_datapath(internal) < 0) {
+ DRV_LOG(ERR, "failed to update datapath %s", pci_dev->name);
+ rte_atomic32_set(&internal->started, 0);
+ rte_vdpa_unregister_device(internal->vdev);
+ pthread_mutex_lock(&internal_list_lock);
+ TAILQ_REMOVE(&internal_list, list, next);
+ pthread_mutex_unlock(&internal_list_lock);
+ goto error;
+ }
rte_kvargs_free(kvlist);
return 0;
@@ -1781,7 +1799,8 @@ ifcvf_pci_remove(struct rte_pci_device *pci_dev)
internal = list->internal;
rte_atomic32_set(&internal->started, 0);
- update_datapath(internal);
+ if (update_datapath(internal) < 0)
+ DRV_LOG(ERR, "failed to update datapath %s", pci_dev->name);
rte_pci_unmap_device(internal->pdev);
rte_vfio_container_destroy(internal->vfio_container_fd);