netdev - Re: [Open-FCoE] [PATCH RFC 5/5] qedf: Add FIP request handling

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Message-ID: <9cce615f-3d83-59ea-1fe1-e08bc4265dc5@suse.de>
Date:   Tue, 10 Jan 2017 07:58:12 +0100
From:   Hannes Reinecke <hare@...e.de>
To:     Chad Dupuis <chad.dupuis@...ium.com>
Cc:     martin.petersen@...cle.com, fcoe-devel@...n-fcoe.org,
        netdev@...r.kernel.org, QLogic-Storage-Upstream@...ium.com,
        linux-scsi@...r.kernel.org, yuval.mintz@...ium.com
Subject: Re: [Open-FCoE] [PATCH RFC 5/5] qedf: Add FIP request handling

On 01/09/2017 05:47 PM, Chad Dupuis wrote:
> 
> On Wed, 28 Dec 2016, 9:11am -0000, Hannes Reinecke wrote:
> 
>> On 12/23/2016 08:17 PM, Dupuis, Chad wrote:
>>> From: "Dupuis, Chad" <chad.dupuis@...ium.com>
>>>
>>> This patch adds handling for FIP requests and responses that are handled by
>>> the driver itself and not by libfcoe.
>>>
>>> Signed-off-by: Nilesh Javali <nilesh.javali@...ium.com>
>>> Signed-off-by: Manish Rangankar <manish.rangankar@...ium.com>
>>> Signed-off-by: Saurav Kashyap <saurav.kashyap@...ium.com>
>>> Signed-off-by: Chad Dupuis <chad.dupuis@...ium.com>
>>> ---
>>>  drivers/scsi/qedf/qedf_fip.c | 267 +++++++++++++++++++++++++++++++++++++++++++
>>>  1 file changed, 267 insertions(+)
>>>  create mode 100644 drivers/scsi/qedf/qedf_fip.c
>>>
>>> diff --git a/drivers/scsi/qedf/qedf_fip.c b/drivers/scsi/qedf/qedf_fip.c
>>> new file mode 100644
>>> index 0000000..4f185c6
>>> --- /dev/null
>>> +++ b/drivers/scsi/qedf/qedf_fip.c
>>> @@ -0,0 +1,267 @@
>>> +/*
>>> + *  QLogic FCoE Offload Driver
>>> + *  Copyright (c) 2016 Cavium Inc.
>>> + *
>>> + *  This software is available under the terms of the GNU General Public License
>>> + *  (GPL) Version 2, available from the file COPYING in the main directory of
>>> + *  this source tree.
>>> + */
>>> +#include <linux/if_ether.h>
>>> +#include <linux/if_vlan.h>
>>> +#include "qedf.h"
>>> +
>>> +extern const struct qed_fcoe_ops *qed_ops;
>>> +/*
>>> + * FIP VLAN functions that will eventually move to libfcoe.
>>> + */
>>> +
>>> +void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf)
>>> +{
>>> +	struct sk_buff *skb;
>>> +	char *eth_fr;
>>> +	int fr_len;
>>> +	struct fip_vlan *vlan;
>>> +#define MY_FIP_ALL_FCF_MACS        ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 })
>>> +	static u8 my_fcoe_all_fcfs[ETH_ALEN] = MY_FIP_ALL_FCF_MACS;
>>
>> Do you support VN2VN, too?
> 
> Not currently, no.
> 
Ah.

Too bad. Any plans for it?
It certainly eases up P2P setups for FCoE...

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@...e.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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