From: Zoltan Kiss <zoltan.kiss@citrix.com>
To: David Vrabel <david.vrabel@citrix.com>,
Ian Campbell <Ian.Campbell@citrix.com>
Cc: <jonathan.davies@citrix.com>, <wei.liu2@citrix.com>,
<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<paul.durrant@citrix.com>, <xen-devel@lists.xenproject.org>
Subject: Re: [Xen-devel] [PATCH net-next v2 2/2] xen-netback: Grant copy the header instead of map and memcpy
Date: Wed, 2 Apr 2014 15:41:38 +0100 [thread overview]
Message-ID: <533C21A2.7030504@citrix.com> (raw)
In-Reply-To: <533C0C9F.8030205@citrix.com>
On 02/04/14 14:11, David Vrabel wrote:
> On 01/04/14 12:40, Ian Campbell wrote:
>> On Mon, 2014-03-31 at 16:08 +0100, Zoltan Kiss wrote:
>>>
>>> __skb_put(skb, data_len);
>>> + vif->tx_copy_ops[*copy_ops].source.u.ref = txreq.gref;
>>> + vif->tx_copy_ops[*copy_ops].source.domid = vif->domid;
>>> + vif->tx_copy_ops[*copy_ops].source.offset = txreq.offset;
>>> +
>>> + vif->tx_copy_ops[*copy_ops].dest.u.gmfn =
>>> + virt_to_mfn(skb->data);
>>> + vif->tx_copy_ops[*copy_ops].dest.domid = DOMID_SELF;
>>> + vif->tx_copy_ops[*copy_ops].dest.offset =
>>> + offset_in_page(skb->data);
>>> +
>>> + vif->tx_copy_ops[*copy_ops].len = data_len;
>>> + vif->tx_copy_ops[*copy_ops].flags = GNTCOPY_source_gref;
>>
>> We have gnttab_set_map_op. Should we have gnttap_set_copy_op too?
>
> A set of 3 might be useful I think.
>
> gnttab_set_copy_op_ref_to_gfn()
> gnttab_set_copy_op_gfn_to_ref()
> gnttab_set_copy_op_ref_to_ref()
I doubt it would increase clarity in any way, but I'll send a patch on
top of these.
Zoli
next prev parent reply other threads:[~2014-04-02 14:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-31 15:08 [PATCH net-next v2 1/2] xen-netback: Rename map ops Zoltan Kiss
2014-03-31 15:08 ` [PATCH net-next v2 2/2] xen-netback: Grant copy the header instead of map and memcpy Zoltan Kiss
2014-04-01 9:40 ` Paul Durrant
2014-04-01 18:55 ` Zoltan Kiss
2014-04-02 7:29 ` Ian Campbell
2014-04-01 11:40 ` Ian Campbell
2014-04-01 19:09 ` Zoltan Kiss
2014-04-02 7:32 ` Ian Campbell
2014-04-02 13:11 ` David Vrabel
2014-04-02 13:15 ` Ian Campbell
2014-04-02 14:41 ` Zoltan Kiss [this message]
2014-04-01 11:18 ` [PATCH net-next v2 1/2] xen-netback: Rename map ops Ian Campbell
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