Re: [dpdk-dev] How to use ixgbe module log?

[Sam <batmanustc@gmail.com>]

My question is not clear. Actually ixgbevf driver in my system is kernel
module, like this:

[root@yf-mos-corp-host175 ~]# modinfo ixgbevf
filename:
 /lib/modules/3.10.0-514.10.2.el7.mt20170307.x86_64/kernel/drivers/net/ethernet/intel/ixgbevf/ixgbevf.ko
version:        2.12.1-k-rh7.3
license:        GPL
description:    Intel(R) 10 Gigabit Virtual Function Network Driver
author:         Intel Corporation, <linux.nics@intel.com>
rhelversion:    7.3
srcversion:     C9F11E41E5F60ADED5673E1
alias:          pci:v00008086d000015A9sv*sd*bc*sc*i*
alias:          pci:v00008086d000015A8sv*sd*bc*sc*i*
alias:          pci:v00008086d00001564sv*sd*bc*sc*i*
alias:          pci:v00008086d00001565sv*sd*bc*sc*i*
alias:          pci:v00008086d00001530sv*sd*bc*sc*i*
alias:          pci:v00008086d00001515sv*sd*bc*sc*i*
alias:          pci:v00008086d0000152Esv*sd*bc*sc*i*
alias:          pci:v00008086d000010EDsv*sd*bc*sc*i*
depends:
intree:         Y
vermagic:       3.10.0-514.10.2.el7.mt20170307.x86_64 SMP mod_unload
modversions
signer:         CentOS Linux kernel signing key
sig_key:        44:C9:F5:E3:67:CB:A0:1D:73:A5:17:C8:70:7B:BA:58:FA:FD:7E:30
sig_hashalgo:   sha256
parm:           debug:Debug level (0=none,...,16=all) (int)

and I use dpdk_nic_bind with --driver option to bind netdevice with ixgbevf
kernel driver. So I think I use ixgbevf kernel module which is distributed
with kernel, and my kernel is:

3.10.0-514.10.2.el7


2017-09-28 19:54 GMT+08:00 Burakov, Anatoly <anatoly.burakov@intel.com>:

> On 28-Sep-17 11:26 AM, Sam wrote:
>
>> Hi all,
>>
>> I'm working on ixgbe, I want to enable "PMD_RX_LOG" and "PMD_TX_LOG", how
>> to do  this?
>>
>> As for normal application, I could use --log-level param to start, but
>> ixgbe is kernel module, how to do this?
>>
>> Thank you~
>>
>>
> Hi Sam,
>
> In DPDK, ixgbe is not a kernel module - these are customized, userspace
> drivers. In order to enable RX and TX logging, corresponding config options
> should be set at compile time. For example, if you want to enable RX/TX
> logging for IXGBE driver, here's a rough list of steps you need to do:
>
> 1) create a custom config file in config/ directory. Copy whatever it is
> that you're using for your application (e.g. defconfig_x86_64-native-linuxapp-gcc),
> and name it something starting with defconfig_ (e.g. defconfig_myconfig)
> 2) Set CONFIG_RTE_LIBRTE_IXGBE_DEBUG_RX and CONFIG_RTE_LIBRTE_IXGBE_DEBUG_TX
> (and whatever other options you may need, see [1] and [2]) to "y" in your
> custom config
> 3) do "make config T=myconfig && make" (or whatever other command you use
> to build/install DPDK - make sure to specify your custom config as target)
>
> After that, you should be able to see RX/TX logs in DPDK applications.
>
> [1] http://dpdk.org/browse/dpdk/tree/config/common_base#n171
> [2] http://dpdk.org/browse/dpdk/tree/drivers/net/ixgbe/ixgbe_logs.h
>
> --
> Thanks,
> Anatoly
>