From: Mike Christie <michaelc@cs.wisc.edu>
To: Karen Xie <kxie@chelsio.com>
Cc: open-iscsi@googlegroups.com, linux-scsi@vger.kernel.org,
James.Bottomley@HansenPartnership.com
Subject: Re: [PATCH 2/2] cxgbi: get rid of gl_skb in cxgbi_ddp_info
Date: Mon, 10 Jan 2011 13:57:08 -0600 [thread overview]
Message-ID: <4D2B6494.8070406@cs.wisc.edu> (raw)
In-Reply-To: <8A71B368A89016469F72CD08050AD33408D5743D@maui.asicdesigners.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?
next prev parent reply other threads:[~2011-01-10 20:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-07 22:45 [PATCH 2/2] cxgbi: get rid of gl_skb in cxgbi_ddp_info kxie
2011-01-07 23:42 ` Mike Christie
2011-01-07 23:47 ` Mike Christie
2011-01-08 0:09 ` Karen Xie
2011-01-08 4:23 ` Mike Christie
2011-01-10 17:52 ` Karen Xie
2011-01-10 19:57 ` Mike Christie [this message]
2011-01-10 22:57 ` Karen Xie
2011-01-11 20:23 ` Mike Christie
2011-01-11 20:25 ` Mike Christie
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