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From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: "Wiles, Keith" <keith.wiles@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"pmatilai@redhat.com" <pmatilai@redhat.com>
Subject: Re: [dpdk-dev] [PATCH v2] drivers/net:new PMD using tun/tap host interface
Date: Tue, 20 Sep 2016 11:54:36 +0800	[thread overview]
Message-ID: <20160920035436.GN23158@yliu-dev.sh.intel.com> (raw)
In-Reply-To: <841234E7-437D-4D82-8434-3468590E11D3@intel.com>

On Mon, Sep 19, 2016 at 03:56:03PM +0000, Wiles, Keith wrote:
>         All of the below errors are from Linux header files and not the Tap
>         driver.
> 
>    
>     Yes, but you are referencing them, so ...
> 
> 
> Yes I am referencing them, but still they are not interacting with the tap
> driver.

Yes, they are not. But the tap driver code references them. I mean, you
might have done that wrongly. e.g., the build passes if I removed few
includes for linux header files:

    diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
    index 4621c55..2a6bcd0 100644
    --- a/drivers/net/tap/rte_eth_tap.c
    +++ b/drivers/net/tap/rte_eth_tap.c
    @@ -47,9 +47,7 @@
     #include <arpa/inet.h>
     #include <net/if.h>
     #ifdef __linux__
    -#include <linux/if.h>
     #include <linux/if_tun.h>
    -#include <linux/if_ether.h>
     #else
     #include <netinet/if_ether.h>
     #endif

> It would seem like you could delete all of the code in the tap driver
> and still get these errors. Which you could try if you want, just ifdef the
> code and see if it still happens. 
> 
> On my ubuntu 16.04 machine I do not get these errors. I need to know how to
> reproduce the failure to fix it. 

Interesting! I really did no magic to reproduce it. As said, I can
reproduce it pretty easily with ubuntu 16.04 and fedora 20, just with
default build:

    $ make install T=$RTE_SDK

Anyway, the error is straightforward after all: both files (net/if.h and
linux/if.h) define same structures and macros. Including both of them
would result errors like I reported.

	--yliu

  reply	other threads:[~2016-09-20  3:54 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-15 14:10 [dpdk-dev] [PATCH 1/3] " Keith Wiles
2016-09-15 14:10 ` [dpdk-dev] [PATCH 2/3] docs:tun/tap PMD information Keith Wiles
2016-09-15 14:13   ` Wiles, Keith
2016-09-15 14:15     ` Wiles, Keith
2016-09-21  2:00   ` [dpdk-dev] [PATCH v3] drivers/net:new PMD using tun/tap host interface Keith Wiles
2016-10-04 14:45     ` [dpdk-dev] [PATCH v4] " Keith Wiles
2016-10-11  9:40       ` Ferruh Yigit
2016-10-11 11:30       ` Michał Mirosław
2016-10-11 20:56         ` Wiles, Keith
2016-10-12  8:14           ` Michał Mirosław
2016-10-11 11:49       ` Ferruh Yigit
2016-10-11 21:07         ` Wiles, Keith
2016-10-11 12:28       ` Ferruh Yigit
2016-10-11 20:57         ` Wiles, Keith
2016-10-11 21:51       ` [dpdk-dev] [PATCH v5] " Keith Wiles
2016-10-12 14:56         ` Ferruh Yigit
2016-10-12 18:19           ` Wiles, Keith
2016-10-12 19:57             ` Wiles, Keith
2016-10-12 20:54     ` [dpdk-dev] [PATCH v6] " Keith Wiles
2016-10-13 14:41       ` Ferruh Yigit
2016-10-13 15:36     ` [dpdk-dev] [PATCH v7] " Keith Wiles
2016-10-13 16:11     ` [dpdk-dev] [PATCH v8] " Keith Wiles
2016-10-13 16:33       ` Mcnamara, John
2016-10-13 22:03     ` [dpdk-dev] [PATCH v9] " Keith Wiles
2016-10-14  6:41       ` Mcnamara, John
2016-10-14  9:39       ` Ferruh Yigit
2016-11-21 12:56       ` Ferruh Yigit
2016-11-25 19:38         ` Aws Ismail
2016-11-29 21:36           ` Aws Ismail
2016-11-29 22:16             ` Wiles, Keith
2016-12-07 19:38       ` [dpdk-dev] [PATCH v10] drivers/net:new TUN/TAP device PMD Keith Wiles
2016-12-07 20:15         ` Aws Ismail
2016-12-09 18:16         ` Ferruh Yigit
2016-12-09 19:05       ` [dpdk-dev] [PATCH v11] " Keith Wiles
2016-12-12 12:39         ` Vasily Philipov
2016-12-12 14:24       ` [dpdk-dev] [PATCH v12] net/tap: new " Keith Wiles
2016-12-12 14:38       ` Keith Wiles
2016-12-12 19:13         ` Marc
2016-12-12 21:09           ` Wiles, Keith
2016-12-13 13:54         ` Ferruh Yigit
2017-01-20 12:14           ` Ferruh Yigit
2017-01-20 14:25             ` [dpdk-dev] [PATCH] net/tap: fix IFF_MULTI_QUEUE in older kernels not found Keith Wiles
2017-01-20 14:30             ` Keith Wiles
2017-01-20 16:11               ` Ferruh Yigit
2017-01-20 17:37                 ` Thomas Monjalon
2016-09-15 14:10 ` [dpdk-dev] [PATCH 3/3] drivers/net:build support for new tap device driver Keith Wiles
2016-09-16  7:36   ` Panu Matilainen
2016-09-16 14:46     ` Wiles, Keith
2016-09-16 16:22 ` [dpdk-dev] [PATCH v2] drivers/net:new PMD using tun/tap host interface Keith Wiles
2016-09-18 13:25   ` Yuanhan Liu
2016-09-18 16:20     ` Wiles, Keith
2016-09-19  0:29       ` Yuanhan Liu
2016-09-19 15:56         ` Wiles, Keith
2016-09-20  3:54           ` Yuanhan Liu [this message]
2016-09-20  4:05   ` Yuanhan Liu
2016-09-21  1:32     ` Wiles, Keith
2016-09-21  2:13       ` Yuanhan Liu
2016-09-21  8:24         ` Thomas Monjalon
2016-09-21 23:55           ` Wiles, Keith

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