70 lines
2.5 KiB
Diff
70 lines
2.5 KiB
Diff
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From bb9f408550d13af6c1da104b0d9d9b9837f69bde Mon Sep 17 00:00:00 2001
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From: Kamil Rytarowski <kamil.rytarowski@caviumnetworks.com>
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Date: Thu, 28 Jan 2016 14:13:53 +0100
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Subject: [PATCH] tools: support binding to built-in kernel modules
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Currently dpdk_nic_bind.py detects Linux kernel modules via reading
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/proc/modules. Built-in ones aren't listed there and therefore they are
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not being found by the script.
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Add support for checking built-in modules with parsing the sysfs files.
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This commit obsoletes the /proc/modules parsing approach.
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Signed-off-by: Kamil Rytarowski <kamil.rytarowski@caviumnetworks.com>
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Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
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---
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tools/dpdk_nic_bind.py | 30 ++++++++++++++++++++----------
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1 file changed, 20 insertions(+), 10 deletions(-)
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diff --git a/tools/dpdk_nic_bind.py b/tools/dpdk_nic_bind.py
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index dfefdae..14c5311 100755
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--- a/tools/dpdk_nic_bind.py
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+++ b/tools/dpdk_nic_bind.py
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@@ -156,22 +156,32 @@ def check_modules():
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'''Checks that igb_uio is loaded'''
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global dpdk_drivers
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- fd = open("/proc/modules", 'r')
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- loaded_mods = fd.readlines()
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- fd.close()
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-
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# list of supported modules
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mods = [{"Name" : driver, "Found" : False} for driver in dpdk_drivers]
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# first check if module is loaded
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- for line in loaded_mods:
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+ try:
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+ # Get list of sysfs modules (both built-in and dynamically loaded)
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+ sysfs_path = '/sys/module/'
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+
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+ # Get the list of directories in sysfs_path
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+ sysfs_mods = [os.path.join(sysfs_path, o) for o
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+ in os.listdir(sysfs_path)
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+ if os.path.isdir(os.path.join(sysfs_path, o))]
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+
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+ # Extract the last element of '/sys/module/abc' in the array
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+ sysfs_mods = [a.split('/')[-1] for a in sysfs_mods]
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+
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+ # special case for vfio_pci (module is named vfio-pci,
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+ # but its .ko is named vfio_pci)
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+ sysfs_mods = map(lambda a:
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+ a if a != 'vfio_pci' else 'vfio-pci', sysfs_mods)
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+
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for mod in mods:
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- if line.startswith(mod["Name"]):
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- mod["Found"] = True
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- # special case for vfio_pci (module is named vfio-pci,
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- # but its .ko is named vfio_pci)
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- elif line.replace("_", "-").startswith(mod["Name"]):
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+ if mod["Name"] in sysfs_mods:
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mod["Found"] = True
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+ except:
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+ pass
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# check if we have at least one loaded module
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if True not in [mod["Found"] for mod in mods] and b_flag is not None:
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--
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2.6.2
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