From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mike Christie <michaelc@cs.wisc.edu>
Subject: Re: [PATCH 2/2] cxgbi: get rid of gl_skb in cxgbi_ddp_info
Date: Mon, 10 Jan 2011 13:57:08 -0600
Message-ID: <4D2B6494.8070406@cs.wisc.edu>
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To: Karen Xie <kxie@chelsio.com>
Cc: open-iscsi@googlegroups.com, linux-scsi@vger.kernel.org, James.Bottomley@HansenPartnership.com

On 01/10/2011 11:52 AM, Karen Xie wrote:
> Hi, Mike,
>
> What I mean is even if cxgb3i maintains a pool of skbs (equivalent of
> gl_skbs). Once they are handed down to the network layer cxgb3 they will
> still be freed by the network driver (on the tx path).
>

So hows does it work now? It seems ddp_alloc_gl_skb is called at device 
setup time, then when IO is queued/xmited we run ddp_set_map which 
allocates from gl_skbs. If when you transmit the IO, the driver frees 
the skb, how does gl_skb get replenished?