Messages in this thread | | | Date | Mon, 07 Nov 2016 10:55:00 -0500 (EST) | Subject | Re: [PATCH net-next v6 02/10] dpaa_eth: add support for DPAA Ethernet | From | David Miller <> |
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From: Madalin-Cristian Bucur <madalin.bucur@nxp.com> Date: Mon, 7 Nov 2016 15:43:26 +0000
>> From: David Miller [mailto:davem@davemloft.net] >> Sent: Thursday, November 03, 2016 9:58 PM >> >> Why? By clearing this, you disallow an important fundamental way to do >> performane testing, via pktgen. > > The Tx path in DPAA requires one to insert a back-pointer to the skb into > the Tx buffer. On the Tx confirmation path the back-pointer in the buffer > is used to release the skb. If Tx buffer is shared we'd alter the back-pointer > and leak/double free skbs. See also
Then have your software state store an array of SKB pointers, one for each TX ring entry, just like every other driver does.
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