From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: dev@dpdk.org, john.mcnamara@intel.com, thomas@monjalon.net
Subject: Re: [dpdk-dev] [PATCH 2/2] usertools/devbind: check if module is loaded before binding
Date: Wed, 24 Jul 2019 17:47:35 +0100 [thread overview]
Message-ID: <e2388745-3bd3-b64e-ae90-96ea65e8b1c0@intel.com> (raw)
In-Reply-To: <20190724092812.069d9049@hermes.lan>
On 24-Jul-19 5:28 PM, Stephen Hemminger wrote:
> On Wed, 24 Jul 2019 16:34:44 +0100
> Anatoly Burakov <anatoly.burakov@intel.com> wrote:
>
>> +# check if a specific kernel module is loaded
>> +def module_is_loaded(module):
>> + # Get list of sysfs modules (both built-in and dynamically loaded)
>> + sysfs_path = '/sys/module/'
>> +
>> + # Get the list of directories in sysfs_path
>> + sysfs_mods = [os.path.join(sysfs_path, o) for o
>> + in os.listdir(sysfs_path)
>> + if os.path.isdir(os.path.join(sysfs_path, o))]
>> +
>> + # get module names
>> + sysfs_mods = [os.path.basename(a) for a in sysfs_mods]
>> +
>> + # special case for vfio_pci (module is named vfio-pci,
>> + # but its .ko is named vfio_pci)
>> + sysfs_mods = [a if a != 'vfio_pci' else 'vfio-pci' for a in sysfs_mods]
>> +
>> + return module in sysfs_mods
>> +
>
> You could just check if the one module exist rather than getting full
> list.
I tried to reduce the amount of changes made, but i suppose i could fix
this.
>
> Maybe vfio-pci should be renamed vfil_pci earlier in the code.
>
Good point.
--
Thanks,
Anatoly
next prev parent reply other threads:[~2019-07-24 16:47 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-24 15:34 [dpdk-dev] [PATCH 0/2] Small usability improvements for devbind Anatoly Burakov
2019-07-24 15:34 ` [dpdk-dev] [PATCH 1/2] usertools/devbind: add error on forgetting to specify driver Anatoly Burakov
2019-07-24 16:29 ` Stephen Hemminger
2019-07-24 16:47 ` Burakov, Anatoly
2019-07-24 15:34 ` [dpdk-dev] [PATCH 2/2] usertools/devbind: check if module is loaded before binding Anatoly Burakov
2019-07-24 16:28 ` Stephen Hemminger
2019-07-24 16:47 ` Burakov, Anatoly [this message]
2019-07-25 13:48 ` [dpdk-dev] [PATCH v2 0/3] Small usability improvements for devbind Anatoly Burakov
2019-07-25 13:55 ` [dpdk-dev] [PATCH v3 " Anatoly Burakov
2019-07-25 14:21 ` [dpdk-dev] [PATCH v4 " Anatoly Burakov
2019-07-30 21:52 ` Thomas Monjalon
2019-07-25 14:21 ` [dpdk-dev] [PATCH v4 1/3] usertools/devbind: add error on forgetting to specify driver Anatoly Burakov
2019-07-25 14:21 ` [dpdk-dev] [PATCH v4 2/3] usertools/devbind: check if module is loaded before binding Anatoly Burakov
2019-07-25 14:21 ` [dpdk-dev] [PATCH v4 3/3] usertools/devbind: print all errors to stderr Anatoly Burakov
2019-07-25 13:55 ` [dpdk-dev] [PATCH v3 1/3] usertools/devbind: add error on forgetting to specify driver Anatoly Burakov
2019-07-25 13:55 ` [dpdk-dev] [PATCH v3 2/3] usertools/devbind: check if module is loaded before binding Anatoly Burakov
2019-07-25 13:55 ` [dpdk-dev] [PATCH v3 3/3] usertools/devbind: print all errors to stderr Anatoly Burakov
2019-07-25 13:48 ` [dpdk-dev] [PATCH v2 1/3] usertools/devbind: add error on forgetting to specify driver Anatoly Burakov
2019-07-25 13:48 ` [dpdk-dev] [PATCH v2 2/3] usertools/devbind: check if module is loaded before binding Anatoly Burakov
2019-07-25 13:48 ` [dpdk-dev] [PATCH v2 3/3] usertools/devbind: print all errors to stderr Anatoly Burakov
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