X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fraw%2Fioat%2Fdpdk_idxd_cfg.py;h=83ef4817dbabca5f37afdb4e803c348e7ccf65a2;hb=48fbc1be82b551e41c58e94de780fdd2ffaaeb78;hp=ad8393a645ba15802b4f6c7d3748e8421712dbe2;hpb=1e5aade752ab8dc3f91cc9507ed03d759280c9d8;p=dpdk.git

diff --git a/drivers/raw/ioat/dpdk_idxd_cfg.py b/drivers/raw/ioat/dpdk_idxd_cfg.py
index ad8393a645..83ef4817db 100755
--- a/drivers/raw/ioat/dpdk_idxd_cfg.py
+++ b/drivers/raw/ioat/dpdk_idxd_cfg.py
@@ -29,6 +29,12 @@ class SysfsDir:
                 f.write(str(contents))
 
 
+def reset_device(dsa_id):
+    "Reset the DSA device and all its queues"
+    drv_dir = SysfsDir("/sys/bus/dsa/drivers/dsa")
+    drv_dir.write_values({"unbind": f"dsa{dsa_id}"})
+
+
 def get_pci_dir(pci):
     "Search for the sysfs directory of the PCI device"
     base_dir = '/sys/bus/pci/devices/'
@@ -95,11 +101,16 @@ def main(args):
     arg_p.add_argument('--name-prefix', metavar='prefix', dest='prefix',
                        default="dpdk",
                        help="Prefix for workqueue name to mark for DPDK use [default: 'dpdk']")
+    arg_p.add_argument('--reset', action='store_true',
+                       help="Reset DSA device and its queues")
     parsed_args = arg_p.parse_args(args[1:])
 
     dsa_id = parsed_args.dsa_id
     dsa_id = get_dsa_id(dsa_id) if ':' in dsa_id else dsa_id
-    configure_dsa(dsa_id, parsed_args.q, parsed_args.prefix)
+    if parsed_args.reset:
+        reset_device(dsa_id)
+    else:
+        configure_dsa(dsa_id, parsed_args.q, parsed_args.prefix)
 
 
 if __name__ == "__main__":