netdev - [RESEND] RE: [PATCH 08/13] QLogic VNIC: sysfs interface implementation for the driver

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Date:	Thu, 1 May 2008 22:13:08 +0530
From:	"Ramachandra K" <ramachandra.kuchimanchi@...gic.com>
To:	"Stephen Hemminger" <shemminger@...tta.com>
Cc:	netdev@...r.kernel.org, rdreier@...co.com,
	"Poornima Kamath (Contractor - )" <poornima.kamath@...gic.com>,
	general@...ts.openfabrics.org,
	"Amar Mudrankit (Contractor - )" <amar.mudrankit@...gic.com>
Subject: [RESEND] RE: [PATCH 08/13] QLogic VNIC: sysfs interface implementation for the driver

Sorry for the resend. Original mail got bounced from netdev.

On Thu, May 1, 2008 at 9:32 PM,  <ramachandra.kuchimanchi@...gic.com> wrote:
>
> Stephen,
>
>
>  Stephen Hemminger [mailto:shemminger@...tta.com] wrote:
>
>  >> On Wed, 30 Apr 2008 22:49:55 +0530
>  >> Ramachandra K <ramachandra.kuchimanchi@...gic.com> wrote:
>
>  <snip>
>
>
>  >> +static match_table_t vnic_opt_tokens = {
>  >> +    {VNIC_OPT_IOC_GUID, "ioc_guid=%s"},
>  >> +    {VNIC_OPT_DGID, "dgid=%s"},
>  >> +    {VNIC_OPT_PKEY, "pkey=%x"},
>  >> +    {VNIC_OPT_NAME, "name=%s"},
>  >> +    {VNIC_OPT_INSTANCE, "instance=%d"},
>  >> +    {VNIC_OPT_RXCSUM, "rx_csum=%s"},
>  >> +    {VNIC_OPT_TXCSUM, "tx_csum=%s"},
>  >> +    {VNIC_OPT_HEARTBEAT, "heartbeat=%d"},
>  >> +    {VNIC_OPT_IOC_STRING, "ioc_string=\"%s"},
>  >> +    {VNIC_OPT_IB_MULTICAST, "ib_multicast=%s"},
>  >> +    {VNIC_OPT_ERR, NULL}
>  >> +};
>  >>
>
>  > NO
>  > 1. Most of this shouldn't be done via sysfs (rx_csum, tx_csum, ...)
>  > 2. Sysfs is one value per file not name=value
>
>  The VNIC driver needs multiple parameters (IOCGUID, DGID etc) from user space
>  to connect to the EVIC. For this the "name=value" mechanism is used for
>  a write-only sysfs file as an input method to the driver.
>
>  The driver follows the one value per file sysfs rule when it returns any data
>  with each readable file returning only a single value.
>
>  Regards,
>  Ram
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