netdev - Re: [PATCH 6/7] NetXen: Fixes for Power PC architecture

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Date:	Tue, 17 Apr 2007 22:14:03 +0530
From:	Amit Kale <amitkale@...xen.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Linsys Contractor Mithlesh Thukral <mithlesh@...xen.com>,
	netdev@...r.kernel.org, jeff@...zik.org, netxenproj@...syssoft.com,
	rob@...xen.com
Subject: Re: [PATCH 6/7] NetXen: Fixes for Power PC architecture

On Friday 13 April 2007 21:24, Christoph Hellwig wrote:
> On Fri, Apr 13, 2007 at 08:42:57AM -0700, Linsys Contractor Mithlesh Thukral 
wrote:
> > NetXen: Configurable interrupts on PPC architecture
> > This patch will add support to add command line argument to specify
> > the interrupt type on a PPC machine. Fixes some issues seen on Big endian
> > machines.
> >
> > Signed-off by: Milan Bag <mbag@...xen.com>
> > Acked-by: Mithlesh Thukral <mithlesh@...xen.com>
> >
> > ---
> >
> >  drivers/net/netxen/netxen_nic.h      |    6 +++---
> >  drivers/net/netxen/netxen_nic_hw.c   |    2 +-
> >  drivers/net/netxen/netxen_nic_init.c |    4 ++--
> >  drivers/net/netxen/netxen_nic_main.c |    6 ++++++
> >  4 files changed, 12 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/net/netxen/netxen_nic.h
> > b/drivers/net/netxen/netxen_nic.h index 3549c7c..7ba2383 100644
> > --- a/drivers/net/netxen/netxen_nic.h
> > +++ b/drivers/net/netxen/netxen_nic.h
> > @@ -64,9 +64,9 @@ #include <asm/pgtable.h>
> >  #include "netxen_nic_hw.h"
> >
> >  #define _NETXEN_NIC_LINUX_MAJOR 3
> > -#define _NETXEN_NIC_LINUX_MINOR 3
> > -#define _NETXEN_NIC_LINUX_SUBVERSION 3
> > -#define NETXEN_NIC_LINUX_VERSIONID  "3.3.3"
> > +#define _NETXEN_NIC_LINUX_MINOR 4
> > +#define _NETXEN_NIC_LINUX_SUBVERSION 2
> > +#define NETXEN_NIC_LINUX_VERSIONID  "3.4.2"
> >
> >  #define NUM_FLASH_SECTORS (64)
> >  #define FLASH_SECTOR_SIZE (64 * 1024)
> > diff --git a/drivers/net/netxen/netxen_nic_hw.c
> > b/drivers/net/netxen/netxen_nic_hw.c index 3195fa5..4206125 100644
> > --- a/drivers/net/netxen/netxen_nic_hw.c
> > +++ b/drivers/net/netxen/netxen_nic_hw.c
> > @@ -1141,7 +1141,7 @@ void netxen_nic_flash_print(struct netxe
> >  				       netxen_nic_driver_name);
> >  				return;
> >  			}
> > -			*ptr32 = le32_to_cpu(*ptr32);
> > +			*ptr32 = cpu_to_le32(*ptr32);
>
> Please add proper __le32 and avoid in-place swapping.  Please use sparse
> to verify that your endianess handling is correct.

Yes. We'll do this.
Thanks.

>
> > +#ifdef CONFIG_PPC
> > +static int nx_ppc_msi_enable = 0;      /* by default donot enable msi */
> > +module_param(nx_ppc_msi_enable, int, 0644);
> > +MODULE_PARM_DESC(nx_ppc_msi_enable, "NetXen PPC MSI enable value");
> > +#endif /* CONFIG_PPC */
>
> NACK.  If msi is broken on your card for certain setup disable it
> completely, if ppc msi support is broken fix it there.

Ok. I believe this can be handled through a firmware change, so that driver 
will read MIS parameter from there.
-Amit
-
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