[dpdk-dev] [PATCH v3] Restore support for virtio on FreeBSD

[Raz Amir]

Thomas, I will add more information to the commit message, but regarding
your feedback on the iopl comment, it is called also iopl on FreeBSD.
See this link to FreeBSD source code, for the io driver code - the flag name
is PSL_IOPL:
https://github.com/freebsd/freebsd/blob/master/sys/i386/i386/io.c#L38

Ouyang, I will implement your suggestion in the next patch version I submit.


-----Original Message-----
From: Ouyang, Changchun [mailto:changchun.ouyang at intel.com] 
Sent: 14 April 2015 05:33
To: Thomas Monjalon; Raz Amir
Cc: dev at dpdk.org; Ouyang, Changchun
Subject: RE: [dpdk-dev] [PATCH v3] Restore support for virtio on FreeBSD

Hi 

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Thomas Monjalon
> Sent: Monday, April 13, 2015 8:55 PM
> To: Raz Amir
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v3] Restore support for virtio on 
> FreeBSD
> 
> Please provide more information in the commit message.
> We need to know what was the problem (crash) in the git history.
> Then when doing git blame, we'll have the full explanation.
> 
> 2015-04-13 15:19, Raz Amir:
> > Fixes: 8a312224bcde ("eal/bsd: fix fd leak")
> >
> > Signed-off-by: Raz Amir <razamir22 at gmail.com>
> > ---
> >  lib/librte_eal/bsdapp/eal/eal.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/lib/librte_eal/bsdapp/eal/eal.c 
> > b/lib/librte_eal/bsdapp/eal/eal.c index 871d5f4..e20f915 100644
> > --- a/lib/librte_eal/bsdapp/eal/eal.c
> > +++ b/lib/librte_eal/bsdapp/eal/eal.c
> > @@ -426,7 +426,7 @@ rte_eal_iopl_init(void)
> >  	fd = open("/dev/io", O_RDWR);
> >  	if (fd < 0)
> >  		return -1;
> > -	close(fd);
> > +	/* keep fd open for iopl */

Copy and paste my comment into this new patch:
Would you pls think about this solution?
Declare a static var to keep the fd which is opened for freebsd; Then define
a deinit function for virtio device, Inside the deinit function, close the
fd which was opened in init stage.
Done.

thanks
Changchun