[dpdk-dev] [PATCH v2] tools/dpdk_nic_bind: Fix can't bind virtio-pci issue
Ouyang Changchun
changchun.ouyang at intel.com
Wed Mar 4 03:55:35 CET 2015
The dpdk_nic_bind script will not allow ports to be bound or unbound if none of the
kernel modules supported by DPDK is loaded. This patch relaxes this restriction by
checking if a DPDK module is actually requested. The example below illustrates this
problem:
In virtio test, on the guest
1. Bind virtio port to igb_uio driver;
2. Remove igb_uio module;
3. Bind virtio port to virtio-pci driver, it fails and reports:
"Error - no supported modules are loaded"
The script should check the to-be-bound driver flag, if it is dpdk driver(igb_uio, vfio etc),
and the corresponding module is not loaded, then exit, otherwise, just report a warning,
and continue to bind the non-dpdk driver(like virtio-pci) to dev.
Signed-off-by: Changchun Ouyang <changchun.ouyang at intel.com>
---
Changes in v2:
-- Update the description.
tools/dpdk_nic_bind.py | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/tools/dpdk_nic_bind.py b/tools/dpdk_nic_bind.py
index 2483056..8523f82 100755
--- a/tools/dpdk_nic_bind.py
+++ b/tools/dpdk_nic_bind.py
@@ -175,8 +175,11 @@ def check_modules():
# check if we have at least one loaded module
if True not in [mod["Found"] for mod in mods] and b_flag is not None:
- print "Error - no supported modules are loaded"
- sys.exit(1)
+ if b_flag in dpdk_drivers:
+ print "Error - no supported modules(DPDK driver) are loaded"
+ sys.exit(1)
+ else:
+ print "Warning - no supported modules(DPDK driver) are loaded"
# change DPDK driver list to only contain drivers that are loaded
dpdk_drivers = [mod["Name"] for mod in mods if mod["Found"]]
--
1.8.4.2
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