dma/idxd: fix setup with Ubuntu 24.04

[ upstream commit d569af3 ] In Ubuntu 24.04 and with Linux kernel >= v6.7, DSA's workqueue has a driver_name file in sysfs. DPDK needs to write a correct value to this file when configuring a device instance using the dpdk_idxd_cfg.py script, otherwise it will fail to be configured, this patch fixes the issue. Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7af1e0aceeb3 Signed-off-by: Wenwu Ma <[email protected]> Acked-by: Bruce Richardson <[email protected]>
DPDK · Aug 30, 2024 · c1ddc9a · c1ddc9a
1 parent 1459c42
commit c1ddc9a
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/drivers/dma/idxd/dpdk_idxd_cfg.py b/drivers/dma/idxd/dpdk_idxd_cfg.py
@@ -104,8 +104,10 @@ def configure_dsa(dsa_id, args):
                  "priority": 1,
                  "max_batch_size": 1024,
                  "size": int(max_work_queues_size / nb_queues)}
-        wqcfg.update(parse_wq_opts(args.wq_option))
         wq_dir = SysfsDir(os.path.join(dsa_dir.path, f"wq{dsa_id}.{q}"))
+        if os.path.exists(os.path.join(wq_dir.path, f"driver_name")):
+            wqcfg.update({"driver_name": "user"})
+        wqcfg.update(parse_wq_opts(args.wq_option))
         wq_dir.write_values(wqcfg)
 
     # enable device and then queues