From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla@dpdk.org
Subject: [Bug 63] AWS ENA driver does not work with zero rx
	queues.
Date: Thu, 21 Jun 2018 11:06:17 +0000
Message-ID: <bug-63-3@http.bugs.dpdk.org/>
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https://bugs.dpdk.org/show_bug.cgi?id=3D63

            Bug ID: 63
           Summary: AWS ENA driver does not work with zero rx queues.
           Product: DPDK
           Version: 18.02
          Hardware: All
                OS: Other
            Status: CONFIRMED
          Severity: major
          Priority: Normal
         Component: other
          Assignee: dev@dpdk.org
          Reporter: daria.kolistratova@intel.com
  Target Milestone: ---

(Program received signal SIGFPE, Arithmetic exception.) which was caused by:

0x00000000006f703c in ena_rss_init_default (adapter=3D0x7fffef399200)
    at
/home/ec2-user/projects/src/github.com/intel-go/nff-go/dpdk/dpdk-18.02/driv=
ers/net/ena/ena_ethdev.c:571
571                     val =3D i % nb_rx_queues;

nb_rx_queues is 0, cause our application does not receive and we do not use=
 rx
queues.=20

After fix of SIGFPE, we cant init port cause ena_com_ind_tbl_convert_to_dev=
ice
function returns error at line:
(if (io_sq->direction !=3D ENA_COM_IO_QUEUE_DIRECTION_RX)
                        return ENA_COM_INVAL;)

cause place for rx queue is not initialized and 0 means tx queue.=20

Application may have no rx queues, please look at this case.

--=20
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