[dpdk-dev] [PATCH 2/8] usertools/dpdk-devbind.py: add support for IOAT devices

Bruce Richardson bruce.richardson at intel.com
Thu May 30 23:25:19 CEST 2019

In order to allow binding/unbinding of devices for use by the
ioat_rawdev, we need to update the devbind script to add a new class
of device, and add device ids for the specific HW instances.

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
 doc/guides/rawdevs/ioat_rawdev.rst | 11 +++++++++++
 usertools/dpdk-devbind.py          | 10 ++++++++++
 2 files changed, 21 insertions(+)

diff --git a/doc/guides/rawdevs/ioat_rawdev.rst b/doc/guides/rawdevs/ioat_rawdev.rst
index 40ab1b466..99e757498 100644
--- a/doc/guides/rawdevs/ioat_rawdev.rst
+++ b/doc/guides/rawdevs/ioat_rawdev.rst
@@ -23,3 +23,14 @@ configurations.
 For builds using ``meson`` and ``ninja``, the driver will be built when the
 target platform is x86-based.
+Device Setup
+The Intel\ |reg| QuickData Technology HW devices will need to be bound to a
+user-space IO driver for use. The script ``dpdk-devbind.py`` script
+included with DPDK can be used to view the state of the devices and to bind
+them to a suitable DPDK-supported kernel driver. When querying the
+status of the devices, they will appear under the category of "dma
+devices", i.e. the command ``dpdk-devbind.py --status-dev dma`` can be used
+to see the state of those devices alone.
diff --git a/usertools/dpdk-devbind.py b/usertools/dpdk-devbind.py
index 9e79f0d28..bd0d97df3 100755
--- a/usertools/dpdk-devbind.py
+++ b/usertools/dpdk-devbind.py
@@ -36,11 +36,17 @@
 octeontx2_npa = {'Class': '08', 'Vendor': '177d', 'Device': 'a0fb,a0fc',
               'SVendor': None, 'SDevice': None}
+intel_ioat_bdw = {'Class': '08', 'Vendor': '8086', 'Device': '6f20,6f21,6f22,6f23,6f24,6f25,6f26,6f27,6f2e,6f2f',
+              'SVendor': None, 'SDevice': None}
+intel_ioat_skx = {'Class': '08', 'Vendor': '8086', 'Device': '2021',
+              'SVendor': None, 'SDevice': None}
 network_devices = [network_class, cavium_pkx, avp_vnic, ifpga_class]
 crypto_devices = [encryption_class, intel_processor_class]
 eventdev_devices = [cavium_sso, cavium_tim, octeontx2_sso]
 mempool_devices = [cavium_fpa, octeontx2_npa]
 compress_devices = [cavium_zip]
+dma_devices = [intel_ioat_bdw, intel_ioat_skx]
 # global dict ethernet devices present. Dictionary indexed by PCI address.
 # Each device within this is itself a dictionary of device properties
@@ -595,6 +601,8 @@ def show_status():
     if status_dev == "compress" or status_dev == "all":
         show_device_status(compress_devices , "Compress")
+    if status_dev == "dma" or status_dev == "all":
+        show_device_status(dma_devices, "DMA")
 def parse_args():
     '''Parses the command-line arguments given by the user and takes the
@@ -670,6 +678,7 @@ def do_arg_actions():
+            get_device_details(dma_devices)
@@ -690,6 +699,7 @@ def main():
+    get_device_details(dma_devices)
 if __name__ == "__main__":

More information about the dev mailing list