Bug 1476337

Summary:	[fdBeta] linking error when using rte_eth_tx_done_cleanup function
Product:	Red Hat Enterprise Linux 7	Reporter:	Timothy Redaelli <tredaelli>
Component:	dpdk	Assignee:	Timothy Redaelli <tredaelli>
Status:	CLOSED NEXTRELEASE	QA Contact:	Jean-Tsung Hsiao <jhsiao>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.4	CC:	aloughla, atragler, rkhan, sukulkar
Target Milestone:	rc	Keywords:	Extras
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Clones:	1476341 (view as bug list)		Environment:
Last Closed:	2018-03-20 10:26:11 UTC	Type:	Bug
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Description Timothy Redaelli 2017-07-28 16:30:30 UTC

From release note of DPDK 17.05:

* **Added free Tx mbuf on demand API.**                                         
                                                                                
  Added a new function ``rte_eth_tx_done_cleanup()`` which allows an            
  application to request the driver to release mbufs that are no longer in use  
  from a Tx ring, independent of whether or not the ``tx_rs_thresh`` has been   
  crossed.

But the function is missing in map and so it can't be used by applications linking to shared libraries (like pktgen).

Upstream commit to backport:

commit 5b45c30a00ecbd5181e5679b13ca059bcd761ead
Author: Luca Boccassi <luca.boccassi>
Date:   Thu Jun 22 13:04:59 2017 +0100

    ethdev: add missing symbol in map
    
    The function rte_eth_tx_done_cleanup() was missing in the map file
    so it cannot be used by applications linking to shared libraries.
    pktgen uses it since version 3.2.0.
    
    Fixes: 44a718c457b5 ("ethdev: add API to free consumed buffers in Tx ring")
    Cc: stable
    
    Signed-off-by: Luca Boccassi <luca.boccassi>